Tile saw

ES 2 264 751 T3

DESCRIPTION

Tile saw.

The present invention relates generally to tile or masonry saws according to the preamble of claim 1 (US6000387) and more particularly to tile saws with greater capacity.

A typical tile saw comprises a base that supports a generally flat tabletop or tabletop. A saw can be arranged on the base or table to cut a workpiece, such as a tile or masonry brick, arranged on the table. However, the maximum cutting capacity of such tile saws is limited by the dimensions of the machine, that is, the housing.

Consequently, experts in this art have designed a tile saw in which the base has two guides and the table has bearings or wheels that run on the guides, so that the table can be made to slide relative to the saw to increase capacity. Such tile saws, however, are typically susceptible to accumulating dust between the guides and the wheels, creating blockage between the base and the table. Ultimately, blocking can cause inaccurate, uneven cuts, which can result in loss of time, materials and / or profits for the user.

Furthermore, the capacity of such tile saws is usually limited to the length of the guides. In other words, if a user wants to increase capacity, they will have to lengthen the guides. However, longer guides can result in less portability of the tile saw.

Document US5906538 describes a cutting apparatus comprising an abrasive wheel driven by a motor through a shaft. A first platform is arranged on top of a guiding surface and is adapted to support a workpiece to be cut. The first platform is slidable along a series of guides to move a workpiece into contact and away from the abrasive wheel. A mechanism for adjusting the height of the abrasive wheel is described. The motor is arranged on top of a mounting plate which is fixed to the guide surface by means of hinges. A bolt extends through a lifting portion having a threaded hole attached to the mounting plate. As the screw is turned in a clockwise direction, the lifting portion rises upward along the bolt and raises the mounting plate to selectively raise the abrasive wheel to the desired height.

US6000387 describes a power saw for ceramic and masonry having a cutting table mounted slidably on a support structure. A cutter head arrangement comprises a main platform pivotably mounted on the support structure by means of a pivoting arm. The cutting head arrangement comprises a motor mounted on the main deck to drive a saw blade through a transmission means.

It is, therefore, an object of the present invention to provide a saw with increased cutting capacity without sacrificing portability.

In accordance with the present invention, an improved tile saw is used. The saw comprises a base, a frame assembly arranged on the base, a first guide arranged on the frame assembly, the first guide having a longitudinal axis, a table arranged slidably on the first guide, a support assembly arranged on the base, a saw assembly supported by the support assembly, the saw assembly comprising a motor, a motor-driven cutting wheel, the saw assembly having the ability to rotate about a horizontal axis substantially parallel to the longitudinal axis, and a switch electrically connected to the motor and arranged on the support assembly such that, when the motor assembly is rotated about the horizontal axis , the switch remains stationary.

According to the present invention, a saw according to claim 1 is disclosed.

Additional features and benefits of the present invention are described and will become apparent from the accompanying drawings and the following detailed description.

The attached drawings show preferred embodiments of the invention according to the practical application of its principles, and in which:

Figure 1 is a front side perspective view of a tile saw in accordance with the present invention;

Figure 2 is a rear perspective view of the tile saw shown in Figure 1;

Figure 3 shows a frame assembly according to the present invention, in which Figures 3A3B are a perspective view and a close-up view of the frame assembly, respectively;

Figure 4 is a partially disassembled view of the structure and column assemblies according to the present invention;

Figure 5 shows a cutting guide assembly on a table assembly in accordance with the present invention, in which Figures 5A-5C are front views of the first, second and third embodiments, respectively, and Figure 5D is a top view in partial plan of the fourth embodiment according to the present invention;

Figure 6 shows a first embodiment of the guide and table assemblies according to the present invention, in which Figures 6A-6C are partial cross-sectional views along the line (AA) of Figure 1, and the lines (BB) and (CC) of Figure 6A, respectively;

Figure 7 shows a detail of the guide and table assemblies of Figure 6, in which Figures 7A-7B are partial perspective views and a partial top plan view, respectively;

Figure 8 is a partial cross-sectional view (taken along line (AA) of Figure 1) of a second embodiment of the guide and table assemblies according to the present invention;

Figure 9 is a partial cross-sectional view of the table assembly according to the present invention;

Figure 10 is a perspective view of a table assembly with a first embodiment of a manifold assembly in accordance with the present invention;

Figure 11 is a front view of a table assembly with a second embodiment of a manifold assembly in accordance with the present invention;

Figure 12 is a partial view with the parts broken down

ES 2 264 751 T3 assembled of the column assembly according to the present invention;

Figure 13 shows the arm and motor assemblies in accordance with the present invention, in which Figures 13A-13B are front and rear perspective views, respectively;

Figure 14 shows the blade in two different bevel positions;

Figure 15 shows various embodiments of a depth stop mechanism according to the invention, in which Figures 15A-15C and 15E are side views of the first, second, third and fourth embodiments, respectively, Figure 15D is a partial view in cross-section of the third embodiment along the line (FF) of FIG. 15C, and FIG. 15F is a partial cross-sectional view of a fifth embodiment;

Figure 16 is a schematic circuit diagram of the tile saw, in accordance with the present invention;

Figure 17 shows an adjustable guard assembly according to the present invention, in which Figures 17A-17B show the adjustable guard assembly in two different positions;

Figure 18 shows a fluid nozzle assembly in accordance with the present invention, wherein Figures 18A-18B show the fluid nozzle assembly in the disassembled and assembled positions, respectively;

Figure 19 is a side view of the tile saw with a flexible nozzle assembly in accordance with the present invention;

Figure 20 shows the bottom of the nozzle assembly, in which Figures 20A-20B are front and side views of the nozzle assembly, respectively;

Figure 21 is a partial perspective view of the fluid nozzle assembly with a tube removed;

Figure 22 is a perspective view of a part of the guard assembly;

Figure 23 is a partial cross-sectional view of the guard assembly with a housing assembly;

Figure 24 shows the fluid directing mechanisms located within the motor housing, in which Figure 24A is a front view of the motor assembly, and Figures 24B-24C are partial cross-sectional views along from lines (DD) and (EE) of Figure 24A, respectively;

Figure 25 is a partial side view of the tile saw supported by a bench;

Figure 26 shows the cutting capacity of the tile saw according to the invention, in which Figures 26A-26B are a side view and a partial top view along the line (XX) of Figure 26A, respectively;

Figure 27 shows two alternative designs of an angle guide assembly, in which Figures 27A27B are a perspective view of the first design and a partially disassembled view of the second design, respectively;

Figure 28 shows two alternative designs of the locking mechanism with the angle guide, in which Figures 28A-28B are partial cross-sectional views of the first and second designs, respectively;

Figure 29 is a partial cross-sectional view of a first embodiment of a stop assembly for the locking mechanism with the angle guide; and Figure 30 is a perspective view of a second embodiment of the stop assembly for the locking mechanism with the angle guide.

The invention is described below with reference to the accompanying figures, in which identical numbers designate identical parts. Figures 1-2 show a first embodiment of the present invention, in which the tile saw (10) comprises a base (11). A frame assembly (20) may be arranged on the base (11). The frame assembly (20) can support the guide assembly (30) and the table assembly (40), which is capable of moving along the guide assembly (30). The frame assembly (20) can also support a column assembly (50), which in turn can support an arm assembly (60). The arm assembly (60) can support a motor assembly (70) comprising a cutter wheel (76) for cutting a workpiece (not shown), such as a tile, disposed on the table assembly ( 40) and moved to contact the cutter wheel (76).

The base (11) is preferably made by injection molding or vacuum shaped as a cube to support the different elements of the tile saw (10) as described below. The base (11) can be made of polypropylene loaded with calcium carbonate, such as Basell's Astryn 75A6-2, HDPE (high density polyethylene) or ABS.

As is well known in the art, the base (11) is preferably shaped like a cube to receive most, if not all, of the water and slurry created during operation. A pump (90) is preferably arranged on the base (11) to pump fluid out of the base (11).

To maximize the amount of water and slurry received by the base (11), it may be preferable to extend the base (11) by providing extension trays. As shown in Figures 1-2, the extension cup (12) can be fixed to the rear of the base (11) through the thumb screws (13). Alternatively, the base (11) may have a flange (11L). The extension cup (12) may be shaped so that it sits on the flange (11L) or is press fit thereon.

Those skilled in the art will recognize that other extension trays can be attached to the sides or front of the base (11). These extension trays are preferably injection molded or vacuum formed and made of ABS, styrene, polypropylene or HDPE.

Referring to Figure 25, the base (11) (and thus the tile saw (10)) can be supported by a bench (S). Preferably, the base (11) has at least one slit (11N) that can extend across the entire width of the base (11) or only through a portion of the width of the base (11). . The bench (S) has bars (SB) that are arranged inside the slots (11N). Preferably, the bars (SB) have a profile that matches the profile of the grooves (11N).

Technicians in the field must recognize that, if the bench (S) has a coupling that limits the

ES 2 264 751 T3 distance between the bars (SB), one bar (SB) can be arranged inside a groove (11N), while the other bar (SB) can simply come into contact with the lower part of the base (11).

A bar (SB) can be retained inside the slot (11N) by means of a plate (15) that captures the bar (SB). Preferably, the plate (15) is fixed to the base (11) through a screw (15S). The plate (15) can be rotated around the longitudinal axis of the screw (15S) or around an axis substantially perpendicular to the longitudinal axis of the screw (15S) to allow the user to insert the bar (SB) into the slot. (11N). Once the bar (SB) is in place, the user can rotate the plate (15) to its original position in order to capture the bar (SB).

The base (11) can support the frame assembly (20). Referring to Figures 1-3, the frame assembly (20) may have a body (21) with front and rear extensions (24). The base (11) may have slits (14) that receive the extensions (24).

Preferably, the frame assembly (20) is made of cast aluminum. Such a material is advantageous in that it reduces bending caused by the tile saw components arranged thereon, providing a more precise cut.

Additionally, frame assembly 20 may have integral storage areas for storing tile saw components therein. For example, the frame assembly (20) may have a pump support assembly (22) to support the pump (90) during shipping. The pump support assembly (22) may include a shelf (22S) that extends from the body (21). The shelf 22S may have holes 22H thereon to allow fluid and slurry to fall through. A wall (22W) arranged around the shelf (22S) can retain the pump (90) in place. It would also be preferable to provide a hole (22SH) in a side wall of the body (21) to allow the user to insert a stem protrusion (91) of the pump (90) therein in order to retain the pump (90) in such a way. Safer.

Referring to Figures 1-4 and 12, the frame assembly (20) can support the column assembly (50). The column assembly (50) may be made of cast aluminum and may have a body (51). Preferably, the body (51) is screwed to a support platform (23) of the frame assembly (20) through screws (23S).

It is preferable to provide means to ensure proper alignment between the column assembly (50) and the frame assembly (20). Consequently, the posts (23W), (23N) can be arranged on the support platform (23) and / or the column body (51). These posts are received in corresponding holes in the column body (51) and / or the support platform (23). Preferably, the post (23W) is wider than the post (23N). Consequently, the user only needs to arrange the body (51) on the support platform (23). Posts 23W, 23N (and corresponding holes) allow the user to quickly position the proper position of column assembly 50 relative to frame assembly 20. Once placed, the user only needs to fix the column assembly (50) to the frame assembly (20) through screws (23S).

Those skilled in the art will recognize that the receiving holes of the posts 23W, 23N are preferably precision holes. In order to allow both posts 23W, 23N to fit into both holes, some side-to-side tolerance should be provided for one of the holes. This side-to-side tolerance can be achieved by turning one of the holes into a slot, or by forming a diamond-shaped post, in a manner similar to post 51D, discussed below.

Referring to Figures 1-2 and 6-7, the frame assembly (20) can support a guide assembly (30). The guide assembly (30), in turn, preferably supports the table assembly (40). A first embodiment of the guide assembly (30) may include a first guide (31) and a second guide (35), both guides preferably being supported by a frame assembly (20). Both the first and second guides (31), (35) can be made of cast or extruded aluminum.

The first guide (31) is preferably attached to the frame assembly (20) through a bolt and nut combination (32). The first guide (31) may have a first part (31C) having a substantially C-shaped cross section along a large part, if not all, of its entire length. Furthermore, the first guide (31) may include a second part (31P) comprising a guide or rod (31R). The first and second parts 31C, 31P may be interconnected. Preferably, the rod (31R) is located outside the first part (31C).

The second guide (35) is preferably attached to the frame assembly (20) through a bolt and nut combination (34). The second guide 35 preferably has a substantially L- or C-shaped cross section along a large part, if not all, of its entire length.

The table assembly (40) is preferably movable connected to the guide assembly (30). The table assembly (40) comprises a table body (41) having at least one slot (41G). The body of the table (41) can be made of cast aluminum. The table body (41) may have rubber parts (42) overmolded thereon to protect a workpiece located on the table assembly (40).

The table assembly (40) may also comprise various shafts (43) connected to the table body (41). The shafts (43) may be fixedly attached to the body of the table (41) (as shown in Figure 8). Alternatively, the shafts (43) may be supported by bearings (43B) arranged between the body of the table (41) and the shafts (43). The bearings (43B) can be ball or roller bearings.

A wheel (44) may be arranged on the axle (43). The bearings may be arranged between the wheel (44) and the axle (43). Preferably, two bearings are pressed into each wheel (44). Additionally, a bearing (45) may be arranged on the shaft (43). The bearing (45) may be a rotatable roller or a non-rotatable element that may be polygonal in shape. Preferably, the axles (43), the wheels (44) and the bearings (45) are arranged on one side of the body of the table (41).

At least one bearing (46) may be arranged4

ES 2 264 751 T3 to on the other side of the body of the table (41). Bearing 46 may be a rotatable roller, as shown in Figure 6A. The bearing (46) may be arranged on a shaft (46S) connected to the body of the table (41). The shaft or shafts (46S) may be fixedly fixed to the body of the table (41). Alternatively, the shaft or shafts (43) may be supported by bearings arranged between the body of the table (41) and the shafts (43). The bearings (43B) can be ball or roller bearings.

Bearings (46B) may be arranged between bearing (46) and shaft (46S). Preferably, two bearings (46B) are pressed into each bearing (46).

The bearing (46) preferably travels on the second guide (35).

Alternatively, the bearing (46) can be a non-rotatable element, such as a linear bearing (46) shown in Figure 8. Said linear bearing can move on the second guide (35) or translate under the second guide. (35) so that the user cannot push said end up past the second guide (35).

With such an arrangement, the table assembly (40) may be slidably arranged on the guide assembly (30). In particular, the wheels (44) can be arranged on the rod (31R), while the bearings (45), (46) are arranged inside the first part (31C) and the second guide (35), respectively.

Preferably, the wheels (44) and bearings (45) support most, if not all, of the weight of the table body (41). In the present arrangement, the table body (41) preferably rotates around contact between the rod (31R) and the wheels (44). Referring to Figure 6A, as the table body (41) rotates in a clockwise direction, the bearings (45) come into contact with the inside of the first part (31C).

The body of the table (41) can, in this way, be displaced in a direction parallel to the longitudinal axes of a first and second guides (31), (35). When the body of the table (41) is moved, consequently, the wheels (44) rotate around and / or with the axles (43), while the bearings (45) slide along the first part ( 31C).

This arrangement is especially advantageous as it allows the user to move the table assembly (40) past the ends of the guide assembly (30), as shown in Figures 1-2. Those skilled in the art will recognize that as each wheel (44) travels past the front end of the rod (31R) (except for one or two of the rearmost wheels (44)), the bearings (45) will enter in contact with the upper inner part of the first part and the second guide (31C), (35), to support the table assembly (40) in a first cantilevered position. Similarly, those skilled in the art will recognize that as wheel 44 travels past the rear end of rod 31R (except for one or two of the most forward wheels 44), the bearings 45, 46 will come into contact with the upper inner portion of the first part and the second guide 31C, 35, to support the table assembly 40 in a second cantilevered position.

Having the ability to move the table assembly (40) to at least one of the first and second cantilever positions, allows for a longer range of movements of the table assembly (40) which, in turn, results in a extended cutting capacity without increasing the length of the guide assembly (30) and / or the base (11). For example, the tile saw shown in Figure 26 may have a cutting wheel (76) with a diameter of approximately 10 inches, a distance (CA) between the wheel axle (WA) and the front of the base. (11) of approximately 60.56 centimeters (or a distance (CA ') between the wheel axle (WA) and the front of the base (11), including the flange (11L), of approximately 62.18 centimeters ), and a distance (CC) between the column body (51) and the plane containing the cutter wheel (76) of approximately 33.4 centimeters, it can cut a workpiece (T) of approximately 25 inches (63.5 centimeters) long arranged on the body of the table (41) at a workpiece angle (TA) of 0 ° in one pass. The same tile saw could also cut a square workpiece (T) that has sides of approximately 24 inches along its major diagonal (MD) (that is, the workpiece (T) is arranged at an angle of 45 ° workpiece (TA)) in two passes.

Those skilled in the art will also recognize that the table assembly (40) can only be inserted into and / or removed from a guide assembly (30) by moving the table assembly in a direction parallel to the longitudinal axes of the first and second guides. (31), (35). It may be desirable to provide the first part (31C) and the second guide (35) with openings on their respective tops to allow the user to lift the table saw assembly (40) when the bearings (45), (46) are aligned with said openings. Those skilled in the art will recognize that multiple sets of apertures can be arranged on the first part (31C) and the second guide (35) so that the user can raise the table saw assembly (40) in multiple positions.

The table body (41) may have downwardly extending flanges (41L), which preferably partially cover the first and / or second guides (31), (35). This can limit the amount of fluid and / or aqueous paste that enters the first and second guides (31), (35).

Referring to Figure 6C, it is preferable to make at least one of the wheels (44) axially movable with respect to its axis (43). This ensures a better alignment between the wheels (44) and the rod (31R). Preferably, the central wheel or wheels (44) will be able to move axially. Another advantage of providing such adjustability is that if the wheels 44 have grooves 44G to travel on the rod 31R, the width of the grooves 44G can be minimized regardless of manufacturing tolerances. This in turn can minimize any lateral oscillation of the table assembly 40 when in a cantilevered position, thereby providing a better quality cut.

Referring to Figure 6B, it is preferable to provide a height difference between the bearings (45) to avoid blocking during sliding. For example, in a tabletop assembly (40) that has three bearings (45), the center bearing may be arranged slightly higher than the rearmost bearing, creating a difference in height (G1). Similarly, the center bearing may be arranged slightly higher than the forward most bearing, creating 5

ES 2 264 751 T3 with a height difference (G2). Preferably, the differences in height (G1), (G2) are substantially equal and are preferably between about 1 mm and about 5 mm.

It is preferable to provide a method of adjusting the guide assembly (30) such that the table assembly (40) travels in a direction substantially parallel to the cutter wheel (76). Referring to Figure 7, the rod (31R) is supported by means of the front and rear supports (31FS), (31RS), respectively. The screws (31SSF), (31SSR) are preferably fixed corresponding to the front and rear supports (31FS), (31RS) to the frame assembly (20). Preferably, the rear support (31RS) (and thus the rod (31R)) can rotate around the screw (31SSR), while the front support (31FS) has a slot (31FSS) to allow said pivoting action. The screw (31SSR) is preferably aligned with the axis of rotation (WA) of the cutter wheel (76). Those skilled in the art will recognize that the screw (31SSR) can be substituted for a pin, molded boss, etc., as long as the rod (31R) can only be rotated about an axis that is aligned with the axis of rotation ( WA).

Those skilled in the art will recognize that this adjustment mechanism can also be used with the second guide (35). Additionally, those skilled in the art should recognize that, although a single rod (31R) is shown in Figure 7, the entire first guide (31) is adjustable since it is interconnected to the rod (31R).

Figure 8 shows another adjustment mechanism (33) that can be used to rotate the first guide (31) about an axis of rotation (if the first guide (31) rotates about an axis and has a adjustment (33)), or to adjust the first guide (31) at multiple positions along its length (if multiple adjustment mechanisms (33) are provided). Basically, the adjusting mechanism (33) may comprise an adjusting screw (33AS), a cylinder (33C) threadably coupled to the adjusting screw (33AS), and a locking screw (33LS) extending through the first part (31C), a frame body (21) and a threadedly engaging cylinder (33C). The set screw (33AS) is preferably threadedly engaged with the frame body (21) or an extension (21E) thereof.

To adjust the alignment of the first guide (31), the user needs to loosen the locking screw (33LS) and then turn the adjustment screw (33AS). As the adjusting screw (33AS) rotates, it horizontally displaces the cylinder (33C) (and thus the first guide (31)). When the desired position is achieved, the user can fix the position of the first guide (31) simply by adjusting the locking screw (33LS), which pushes the first part (31C) against the body of the frame (21).

Referring to Figures 1-2 and 5, as the table assembly (40) moves towards the cutter wheel (76), said cutter wheel (76) cuts a workpiece (T) disposed on the table body (41) and extends below the upper surface of table body (41) into one of the grooves (41G) provided therein. The table body (41) may have a guide (41) that extends in an upward direction to support the workpiece (T) as it is moved toward the cutter wheel (76) and / or cut by the herself.

In order to prevent the cutting wheel (76) from cutting the table body (41), it is typical to widen the slots (41G). However, said wider grooves (41G) do not indicate to the user where the workpiece (T) will be cut. Accordingly, it is preferable to provide means for indicating the cutting path of the cutter wheel (76), that is, where the workpiece (T) will ultimately be cut.

One such means is shown in Figure 5A. Basically, an insert (46) is disposed on the guide (41F) to cover the slot (41G). During manufacture or assembly, the table assembly (40) is slid toward the cutter wheel (76) until the insert (46) is cut by the cutter wheel (76). The insert (46) will thus have a cut line (CL) showing where the cutter wheel (76) cuts through. This allows the user to align the workpiece (T) with the cutter wheel (76).

Preferably, the insert (46) is made of a material that will not damage the cutter wheel (76) or melt on contact with the cutter wheel (76). Consequently, insert 46 can be made of phenolic plastic or any other suitable material, such as GE Noryl PPO.

It is preferable to design the insert 46 so that it can be removed for replacement. Consequently, the insert (46) is preferably fixed to the guide (41) through screws (46S).

An alternative design of insert 46 is shown in Figures 1 and 5B, in which identical numbers refer to identical parts, and in which the teachings of the above embodiments are fully incorporated therein. In this embodiment, insert 46 'is substantially cylindrical and is inserted into guide 41F. The insert (46 ') may have portions (46C) of decreasing width, which can come into contact with the screws (46S). Having a substantially cylindrical insert 46 ' is advantageous since the insert 46' can be rotated to an uncut portion when necessary or desired, rather than needing a complete replacement each time.

Figure 5C shows other means for indicating the cutter wheel. In this embodiment, an element (48) is slidably attached to the guide (41F). When the table assembly (40) is moved towards the cutter wheel (76), the user can slide the element (48) against or next to the cutter wheel (76) and fix its position by adjusting the screws (48S). The leftmost edge will thus indicate the cutting path of the cutter wheel (76).

Although it is not necessary to cut element 48, some users may still wish to do so. Consequently, it is preferable to make the element (48) of a material that does not damage the cutter wheel (76) or melts when it comes into contact with said cutter wheel (76). Consequently, element 48 can be made of phenolic plastic or any other suitable material, such as GE Noryl GPS.

Referring to Figure 5D, an insert (47) may be disposed on the guide (41F). The teachings of the above embodiments are incorporated therein. The insert (47) is advantageous since, in addition to indicating the cutting path through the cutting line (CL), it has 6

ES 2 264 751 T3 ne two inclined edges (47M), allowing the user to place the workpiece (T) in a miter position. Preferably, the two sloping edges (47M) are substantially perpendicular. Furthermore, each slanted edge (47M) makes a 45 ° angle with the cut line (CL), so that the user can cut diagonally along a square tile.

As mentioned above, the table body (41) preferably has grooves (41G). Referring to Figure 9, the slots (41G) may have a bottom wall (41GB) that slopes in a downward direction from the front and rear ends of the table body (41) to the center of the table body (41). . The fluid and / or the aqueous paste generated during the cutting operation can exit the table body (41) through a drain hole (41D) arranged in the center of the bottom wall (41GB). It is preferable to arrange the drain hole (41D) close to the center of the table body (41) so that the drain hole (41D) can drain into the base (11) regardless of whether the table body ( 41) is inside the base housing (11) or if the table body (41) is in the front and / or rear cantilever positions.

Alternatively, the fluid and / or the aqueous paste generated during the cutting operation can leave the body of the table (41) through the holes (41GBH) which, in turn, can drain into a drainage basin. (41RD). The drain pan (41RD) preferably has a bottom wall that slopes downward from the rear end of the table body (41) toward the drain hole (41D). The fluid and / or the aqueous paste exiting through the drain hole (41D) ends up in the base (11).

The drain pan (41RD) may also have a substantially horizontal deflector (41H) disposed below the upper surface of the table body (41) and cutter wheel (76). The deflector (41H) would collect part of the fluid and / or aqueous paste that are thrown towards the rear due to the rotation of the cutter wheel (76) and would redirect said fluid and / or aqueous paste into the drain pan. (41RD).

The table body (41) may also have a brush (41B) at the rear and / or front ends of the slots (41G) to help limit the flow of fluid and / or slurry past the brush (41B). and / or grooves (41G). Preferably, brush 41B has bristles made of nylon or a synthetic rubber-like material.

With reference to Figure 10, it is preferable to arrange the table assembly (40) with an extension bowl assembly (41E) that can also contribute to redirect the fluid and / or aqueous paste generated during the cutting operation into the base (11). In particular, the extension bowl assembly (41E) can be fixed to the body of the table (41) through the screws (41ES). The extension bowl assembly (41E) preferably has a bottom wall (41EB) which preferably extends downwardly from its outermost edge towards the table body (41). A rib (41ER) can help separate the bottom wall (41EB) from the table body (41). The extension cup assembly (41E) can be blow molded, injection molded or vacuum formed and can be made of ABS, styrene, polypropylene or HDPE.

Figure 11 shows an alternative embodiment of the extension cup assembly (41E), in which identical numbers refer to identical parts. The teachings of the above embodiment are fully incorporated therein. The main difference between the above and the present embodiment is that the extension cup assembly (41E) is fixed in the previous embodiment, while the extension cup assembly (41E) is movable.

In the present embodiment, the extension bowl assembly (41E) is slidably attached to a rod (41ER), which in turn is attached to the table body (41) through a bracket (41EB) and screws (41EBS). The rod 41ER may have holes 41ERH that can receive a stopper 41ED which is connected to the extension cup assembly 41E. Preferably, the stopper (41ED) is tensioned towards the holes (41ERH). A handle (41EDH) can move the stop (41ED) away from the hole (41ERH) to allow movement of the extension cup assembly (41E).

Referring to Figures 27-30, an angle guide assembly (65) can be attached to the table body (41) to help guide a workpiece (T) disposed on the table body (41). towards the cutter wheel (76). The angle guide assembly (65) may have a guide body (65B) removable on the table body (41). Preferably, the guide body (65B) is clamped onto a guide (41F).

The guide body (65B) may have a fixing channel (65C) that receives the guide (41F). The fixation channel (65C) may comprise a surface (65CS) that is preferably substantially parallel to the guide (41F). Guide body 65B may also include a displaceable plate 65P that moves to contact guide 41F to interpose guide 41F between surface 65CS and plate ( 65P). The plate (65P) can be moved inwards by means of a handle (65K) that is preferably fixed to a screw (65KS), which in turn is preferably screwed into the body of the guide (65B) and can enter in contact with the plate (65P).

As shown in Figure 28A, the plate (65P) can be fixed to the body of the guide (65B) through screws (65PS). In such a case, the plate 65P is preferably made of spring steel so that when the screw 65KS is loosened, the plate 65P moves away from the guide 41F.

Alternatively, plate 65P may simply be connected to a shaft or screw 65PP, which extends into and / or through the body of guide 65B, as shown in Figure 28B. A spring (65PPS) caught between the screw (65PP) and the body of the guide (65B) can tension the plate (65P) away from the guide (41F), so that when the screw (65KS) is loosened, the plate (65P) moves away from guide (41F).

The guide body 65B may have one surface 65BP on one side thereof, and preferably two surfaces 65BP on both sides thereof. Surfaces 65BP are preferably substantially perpendicular to surface 65CS. Consequently, the body of the guide

ES 2 264 751 T3 (65B) can be fixed to the body of the table (41) and a workpiece (T) can be arranged against the guide (41F) and the surface (65BP). Those skilled in the art will recognize that, if two surfaces (65BP) are arranged on both sides of the body of the guide (65B), the user could support a workpiece (T) against a surface (65BP) regardless of the which side of the groove (41G) the guide body (65B) is arranged.

The angle guide assembly (65) may also have an angle guide (65F). The angled guide (65F) may be rotatably attached to the guide body (65B), as shown in Figure 27A, so that it can be rotated on both sides of the guide body (65B). Preferably, the angled guide (65F) is rotatable about an axis (65A) that is substantially parallel to the surfaces (65BP) and / or substantially perpendicular to the surface (65CS).

Alternatively, the angled guide 65F may be removably disposed on the guide body 65B, as shown in FIG. 27B. In this case, the angled guide (65F) would include a protrusion (65FB), which can be slid into a slot (65BSS) in the support wall (65BS). The user can, in this way, extract the angled guide (65F), rotate it and arrange it on the other side of the guide body (65B) by sliding the protrusion (65FB) into the slot (65BSS). Those skilled in the art will recognize that the angled guide 65F may have two protrusions 65FB received within the rear and front slots 65BSS of the guide body 65B.

The angled guide (65F) has a surface (65FS) that is preferably substantially perpendicular to the supporting surface of the table body (41), although those skilled in the art will recognize that the surface (65FS) can be inclined. with respect to the body of the table (41). Furthermore, the surface (65FS) is preferably inclined with respect to the axis (65A) and / or the surfaces (65BP). Preferably, the surface (65FS) is arranged at an angle of 45 ° with respect to the axis (65A) and / or the surfaces (65BP), so that the user can hold a workpiece (T) arranged on the body of the the table (41) at an angle.

Those skilled in the art will recognize that having an angled guide (65F) that can be moved between both sides of the body of the guide (65B) will allow the user to hold a workpiece (T) arranged on the body of the table ( 41) at an angle regardless of which side of the slot (45G) the guide body (65B) is disposed on.

Angled guide 65F may have support ribs 65FR for added strength and / or stability.

The angled guide (65B) may also carry a series of screws (65SS) to properly align the surface (65FS) with respect to the body of the table (41) and / or the surfaces (65BP).

It may be advantageous to arrange a stop assembly on the angle guide 65F whose position can be set by the user so that the user can set a desired cut and easily make this cut multiple times. An embodiment of such a stopper assembly is shown in Figure 29, in which the stopper assembly (66) is disposed on the angle guide (65F). 8

The stopper assembly (66) may have a surface (66S) that is preferably substantially perpendicular to the surface (65FS). Preferably, the position of the stop assembly (66) is fixed relative to the angled guide (65F) through a screw (66S).

Another embodiment of a stopper assembly is shown in Fig. 30. In this embodiment, the angled guide (65F) may have two coplanar portions (65FP) defining the surface (65FS '). A rod (67R) can be slidably attached to the angle guide (65F) and / or the parts (65FP). The rod (67R) can carry a stop (67S), which would come into contact with the workpiece (T). The stop position (67S) can be set with respect to the angle guide (65F) through a screw (67SS) which is threadedly coupled to the part (65FP) and comes into contact with the rod (67R).

Referring to Figures 1-2, 4 and 12, the column assembly (50) can be supported by a frame assembly (20). The column assembly (50) in turn can support an arm assembly (60).

The column assembly (50) preferably includes a column body (51). The column body (51) is preferably deep and made of cast aluminum. The ribs (51R) may be arranged inside the column body (51) to increase its resistance.

It is preferable to route all the electrical cables necessary to provide the power to the motor (78M) through the column body (51) and the arm assembly (60). A plate (52) can be used to cover and / or seal the interior cavity of the column body (51) that contains the electrical cables. The plate (52) can also support the input power cable (54), which can then extend through the interior cavity of the column body (51) and into the arm assembly (60). In addition, the plate (52) can also support a power outlet (53) that can be used to drive any other electrical device, such as a pump (90). The plate (52) can be fixed to the column body through the screws (52S).

It is preferable to provide means to ensure proper alignment between the column assembly (50) and the arm assembly (60). Consequently, the posts 51W, 51D can be arranged on the column body 51 and / or the arm assembly 60. These posts are received in corresponding holes in the arm assembly (60) and / or the column body (51).

Preferably the holes receiving the posts 51W, 51D are closed precision holes. In order to allow both posts 51W, 51D to fit into both holes, some side-to-side tolerance must be provided for one of the holes. This side-to-side tolerance could be achieved by turning one of the holes into a slot, or by shaping a post, such as post 51D, like a diamond.

Consequently, the user only needs to arrange the arm assembly (60) on the column body (51). Posts 51W, 51D (and corresponding holes) allow the user to quickly position the proper position of column assembly 50 relative to arm assembly 60. Once in place, the user only needs fi15

ES 2 264 751 T3 attach the arm assembly (60) to the column assembly (50) through screws (51S).

Referring to Figures 1-2 and 13, the arm assembly (60) preferably has a body (61) that is substantially U-shaped. Preferably, the arm body (61) is substantially deep to allow cables electrics run through it. The arm body (61) can rotatably support the motor assembly (70). Preferably, the arm body (61) supports the motor assembly (70) at both ends thereof.

The motor assembly (70) preferably comprises a motor (78M) and a housing (78) that covers the motor (78M). The housing (73) can be fixed to a pivoting arm (71). The motor (78M) preferably drives a spindle (72), which carries a cutting wheel (76). The cutter wheel (76) may be partially covered by a guard assembly (80), as more fully described below.

The pivot arm (71) preferably has front and rear ends. At the rear end, the pivot arm (71) can be rotatably attached to a trunnion for the cutting operation (73), so that the pivot arm (71) (and the motor (78M) and the housing (78)) can rotate around the axis (73A). The trunnion for cutting operation (73) is preferably rotatably connected to the chamfering trunnion (63), which in turn can be fixedly connected to the arm body (61).

At the front end, the pivot arm (71) may be displaceably connected to the front plate (74). Referring to Figures 1-2, 13 and 15F, a screw (74KS) may be threadedly coupled to the pivot arm (71) and / or to the handle (74K). The front plate (74), in turn, can be rotatably attached to the front end of the arm body (61).

Preferably, axis 73A is substantially horizontal (at the 0 ° bevel position). Such an arrangement allows the pivoting arm (71) (and the motor (78M) and housing (78)) to move downwardly in a cutting action so that a user can cut a tile in a cutting motion, or adjust the depth of cut of the cutter wheel (76). The user can set the depth of cut of the cutter wheel (76) by turning the knob (74K), which in turn comes into lockable contact with the face plate (74).

Those skilled in the art will recognize that the user can use the handle 74K to rotate the pivot arm 71 (and the motor 78M and housing 78) in a downward direction. Alternatively, the housing 73 may have a handle 78H extending therefrom to aid in the cutting operation. Preferably, the handle 78H has a substantially horizontal portion 78HH so that it can be pulled by the user.

It may be desirable to provide a height adjustment stop mechanism to limit the range of cutting motion of the cutter wheel (76). Different embodiments of said stop mechanisms are shown in Figure 15, in which identical numbers refer to identical parts. Referring to FIG. 15A, the trunnion for the cutting operation (73) may carry a stop (73SS), such as a protrusion or a bolt, which comes into contact with a surface (71S) of the pivot arm (71). Alternatively, the pivot arm (71) may carry a stop (71SS), such as a protrusion or a bolt, which contacts a surface (73) of the trunnion for the cutting operation (73), as shown. shown in Figure 15B. In order to adjust the end of the cutting range, the user only needs to adjust the stopper (71SS) or (73SS).

Another height adjustment stopper mechanism is shown in Figures 15C-15D, where identical numbers refer to identical parts. The trunnion for cutting operation (73) may have a groove (73R). A shaft (73SKS) can extend through the slot (73R). The shaft (73SKS) may be threadedly coupled to a handle (73SK) and / or a stop (73SB), which would come into contact with the surface (71S) of the pivot arm (71). In order to adjust the end of the cutting range, the user would loosen the handle (73SK), move the handle / shaft / stop combination to the desired position, and tighten the handle (73SK).

Figure 15E shows another height adjustment stop mechanism, where identical numbers refer to identical parts. A plate (73P) is preferably attached to the stump for the cutting operation (73). The plate (73P) may be rotatably attached to the trunnion for the cutting operation (73) and is preferably attached to rotate about the axis (73A). A knob (73PK) extending through plate (73P) and threadedly engaged with the trunnion for the cutting operation (73) can fix the position of plate (73P). The pivot arm (71) in turn preferably has a stopper cylinder (71SB) which, as the pivot arm (71) is rotated, comes into contact with a surface (73PS) of the plate (73P). In order to adjust the end of the cutting range, the user would loosen the knob (73PK), move the plate (73P) to the desired position, and tighten the knob (73PK).

Another height adjustment stopper mechanism 74SS is shown in FIG. 15F, where identical numbers refer to identical parts. A shaft (74SKS) can extend through the slot in the faceplate (74). The shaft (74SKS) may be threadedly coupled to the handle (74SK) and / or a stopper 874SB), which would contact a surface of the pivot arm (71) or the shaft (74SK). In order to adjust the end of the cutting range, the user would loosen the handle (74SK), move the handle / shaft / stop combination to the desired position, and tighten the handle (74SK).

With reference to Figures 1-2 and 13, those skilled in the art will recognize that the face plate (74), the pivot arm (71) and / or the trunnion for the cutting operation (73) can rotate together around a chamfering journal (63A). Said chamfering journal (63A) may be substantially horizontal and is preferably perpendicular to axis (73A).

It is preferable that the chamfering journal (63A) is not coplanar with the supporting surface of the table body (41). In addition, it is preferable to locate a chamfering journal (63A) that provides two chamfering positions in which the distance between the table body support surface (41) and the end of the cutter wheel (76) are substantially equal. . Referring to Figure 14, said chamfering journal (63A) can be positioned by first selecting the two chamfering positions

ES 2 264 751 T3 of the cutting wheel (76), and determining the angle difference (X) between both bevel positions.

In the present embodiment, the two bevel positions are 0 ° and 45 °, while the angle difference (X) is 45 °. Then, the lowest corner of the cutter wheel (76) is selected when said cutter wheel (76) is in the 0 ° bevel position and which is the corner furthest from the cutter wheel (76) in the 45 ° bevel position. An imaginary line (IL) is drawn from said lower corner at an angle (Y) of the plane containing said lower corner and being parallel to the cutter wheel (76) when said cutter wheel (76) is in the 0 ° bevel position. The angle (Y) is preferably half the difference angle (X).

Those skilled in the art will recognize that the imaginary line (IL) intersects with the plane of cutter wheel (76) when cutter wheel (76) is in the 45 ° bevel position at a point above the support surface of the table body (41). The chamfering journal (63A) can then be selected from any point on the imaginary line (IL), since all points on the imaginary line (IL) will give rise to a chamfering journal that provides two positions of chamfering in which the distance between the table body support surface (41) and the end of the cutter wheel (76) are substantially equal.

Referring to Figures 1-2 and 13, the chamfering journal (63) may include a plate (62) with a slot (62S). A puller (73K) extends through the slot (62S) and is threadedly coupled to the journal for the cutting operation (73). With such an arrangement, the user can set the bevel angle by tensioning the knob (73K).

A chamfering pointer (75) may be attached to the pivot arm (71) and / or the face plate (74) through a screw (75S) so that the chamfering pointer (75) can rotate together therewith. The user can then determine the bevel angle of the cutter wheel (76) by observing the position of the bevel pointer (75). Preferably, a bevel angle indicative scale or marks (61I) are disposed on the arm body (61) to further assist in determining the current bevel angle.

It is preferable to provide an air intake to direct cooled air to the engine (78M). Referring to Figure 24, the engine housing 78 may have an air intake 781 disposed on or near the top of the engine housing 78 through which air can enter the engine. motor housing (78). Those skilled in the art will recognize that it is preferable to draw the cooled air from the area above the engine housing (78), rather than from the area below the housing (78), since the concentration of airborne contaminants is lower. in the former than in the latter. The air intake (781) is directed forward and / or away from the cutter wheel (76), instead of facing the cutter wheel (76).

The motor housing 78 may have internally disposed baffles 78B to cause changes in the direction or velocity of the air flow. Such interruptions in the stable flow of air will preferably separate the particulate matter (78FD) from the air and / or fall into the motor housing (78M) before they reach the motor (78M).

It may also be preferable to arrange a deflector (78DS) between the air flow and the brush housing (78BBB), which supports a motor brush (78BB) which, in turn, contacts the motor (78M). Such a deflector (78DS) would collect particulate matter (78FD) from the air by redirecting the air flow away from the brush case (78BBB).

It may be advantageous to provide a filter (78F) somewhere in the air flow. Filter 78F may be made of open cell foam, or other suitable filter material. The filter (78F) may be disposed near a drain (78E), so that any fluid collected by the filter (78F) can leave the motor housing (78) through the drain (78E). Those skilled in the art will recognize that, even though the drain (78E) is disposed on a lower surface of the engine housing (78) and that cooled air with a high concentration of airborne contaminants can enter through the drain (78E). ), said air can be filtered through filter (78F). Those skilled in the art should also recognize that it is preferable to design filter 78F so that it can be easily removable through drain 78E and / or air intake 78I.

Referring to Figures 1-2, 12-13 and 16, the outlet (53) is preferably arranged in parallel with the motor (78M). The outlet (53) and the motor (78M) preferably receive power through cables (54) that are connected to a socket (55). Preferably, plug 55 is a ground fault circuit interrupt (GFCI) that trips a circuit breaker (thus cutting off power) in approximately 50 milliseconds if the current exceeds approximately 5 milliamps. Those skilled in the art will recognize that the outlet (53) may also be an outlet from the GfCi.

The switch (92) is preferably a one-way bipolar switch, connected to both cables (54) and arranged between the plug (55) and the outlet (53) / motor (78M). It is preferable that the switch (92) is located on the body of the arm (61), so that it remains stationary, even when the motor assembly (78) is tilted.

As mentioned above, the motor assembly (70) preferably comprises a guard assembly (80). Referring to Figures 1-2, 13 and 17, the guard assembly (80) partially covers the cutter wheel (76). The guard assembly (80) may comprise a guard body (81), partially covering at least the upper part of the cutter wheel (76). The protection body (81) is preferably rotatably fixed to the pivoting arm (71) so that it can rotate about the wheel axis (WA).

Preferably, the guard body (81) has a curved slot (82S), in which the radii of the curved slot meet at a center, which is substantially aligned with the axis of the wheel (WA). A screw (82) may extend through slot (82S) and pivot arm (71) and is threadedly engaged with a puller (not shown). This handle can be turned to fix the pivoting position of the protection body (81) with respect to the pivoting arm (71). This allows the guard body (81) to rotate with respect to the pivot arm (71) so that

ES 2 264 751 T3 spindle 71 when a smaller cutter wheel (such as 76 'in FIG. 17B) is installed therein. Furthermore, such an arrangement allows the guard body (81) to remain in the same pivoting position with respect to the cutter wheel (76) regardless of the diameter of the cutter wheel. This is especially useful in keeping the fluid distribution assembly (100), discussed below, aligned with the cutter wheel (76).

Referring to Figures 1 and 18-21, the shield assembly (80) can support the fluid distribution assembly (100), which directs water and / or other fluids towards the cutting wheel (76) to cool said cutter wheel (76) during cutting operation. The fluid distribution assembly (100) comprises a tube (102) that is connected to a valve body (101) and supplies fluid thereto.

The valve body (101) can be fixed to the protection body (81). In particular, the valve body (101) may have a slot (101N) that receives a screw (81S) threadedly coupled to the protection body (81). The valve body (101) can in turn send the fluid to two nozzles (104), each nozzle (104) being disposed on opposite sides of the cutter wheel (76). The nozzles (104) in turn have orifices (104H) through which the fluid exits.

The nozzles (104) are preferably supported by a carrier (103), which may be rotatably attached to the valve body (101). Carrier (103) may be connected to pivot (105). This allows the user to rotate the nozzles (104) and / or the holder (103) to a desired position towards the cutter wheel (76), or away from it, by rotating the pivot (105). The pivot (105) preferably has a handle (105H) to facilitate said rotation.

Preferably, the nozzles (104) and / or the carrier (103) can be tensioned away from the cutter wheel (76) so that fluid exiting through the holes (104H) does not come into contact with the cutter wheel (76). cut (76). This placement advantageously reduces the amount of fluid mist.

It is preferable that the nozzles (104) can be made of an elastic or flexible material so that, when a workpiece (T) is pushed into contact with the cutting wheel (76), the workpiece (T ) flexes the nozzles (104) as shown in Figure 19, so that the exiting fluid can contact and / or cool the cutter wheel (76). By making the nozzles (104) of an elastic or flexible material, it is also possible to avoid damaging the nozzles (104) and / or the fluid distribution assembly (100) when the workpiece (T) is returned to its original position, since the nozzles (104) would flex safely out of the path, as shown at the position of the dashed line in Figure 19.

Referring to Figures 20-21, each nozzle 104 may contain a rib 104R projecting therefrom. The rib (104R) is preferably disposed over the hole (104H) to redirect the air flow (AF) created by the rotating cutter wheel (76). Said redirection allows the fluid flow (FF) that exits through the nozzle orifice (104H) to remain in a laminar-type flow until it comes into contact with the cutting wheel (76) without altering the air flow ( AF), thus reducing fluid mist.

It is preferable to provide an easy means to separate the tube (102) from the valve body (101). Referring to Figure 21, tube 102 may include an elbow 102E, having a plate 102P. The plate (102P) can be inserted into an inlet (101I) of the valve body (101). A plate (106) rotatably attached to the valve body (101) may have a slot (106S) that captures the plate (102P) to keep the tube (102) connected to the valve body (101). Those skilled in the art will recognize that the plate (106) may be rotatably attached to the valve body (101) through a screw (106P). Those skilled in the art may also recognize that it is preferable to provide a plate (106) with a tab (106T) to allow the user between the holding position and the deflection position of the plate shown in Figure 21.

Shield assembly (80) may also have other means to control fluid flow. For example, referring to Figure 22, the guard body (81) may have internal baffles (81B) and / or a bottom wall (81W), which may be arranged as close as possible to the cutter wheel (76 ). As the cutter wheel (76) rotates along the path (BR), it carries the fluid, fluid spray, and / or mist. The internal baffles (81B) and / or the bottom wall (81W) collect the fluid, spray and / or mist from the rotating cutter wheel (76) and redirect said fluid to the rear of the protection body (81), where It can be released inside the base (11).

The guard assembly (80) may also have a fin (83) attached to the guard body (81). The fin (83) can be made of rubber. The fin (83) preferably has an upper part (83R) with substantially vertical ribs and a lower part (83S) without ribs. Such an arrangement is advantageous since the ribs on the upper part reduce the amount of mist created when the fluid hits the fin (83), while the lower part (83S) can squirt on the workpiece (T) and act like a cleanser.

Those skilled in the art may recognize other alternatives to the means disclosed in this document. However, all of these additions and / or alterations are considered equivalent to the present invention.