A universal rotational connector

Universal rotary joint

The present invention relates to a universal rotary joint, which can quickly and reliably connect a driving device to or detach a variety of rotating objects, such as tools. In particular, the present invention can easily connect or detach rotary tools such as hole saws, buffing wheels and grinding wheels for hand-held drills. However, the present invention can also provide a reliable joint, which can give the tool the function of rotation by a variety of methods, such as mounting a tire to an automobile wheel axle.

For the sake of brevity, the foregoing discussion will be limited to the application of the present invention as a rotary joint for connecting a hand-held drill bit with a rotating tool, especially a hole saw, and other uses of the present invention will be provided in the following discussion.

Hand-held tools such as hole saws are widely used. In the hole saw with a platform base, the base is locked on the hole saw to serve as a bearing for the hole saw. Some bases include multiple circular grooves to accommodate hole saws of different diameters. Other hole saws have only a single hole diameter.

When using a hole saw, the following problems often occur. When a material is drilled through a hole, the material has been cut, but the part usually called a plug remains in the hole and must be removed further. Generally speaking, the plug will fit tightly into the drilled hole, and the plug must be removed with a sharp tool, such as a screwdriver. However, for some materials, such as plastics, due to their material properties, the work of removal will be very difficult. To remove these plugs, the entire sawing device must be removed from the drilling machine, dried, and the plugs Press out.

Based on the aforementioned generally recognized problems, there are currently a variety of improved saw hole assemblies that can dry and provide improved methods for removing the plug. There is a part of the saw hole assembly that can effectively remove the plug, but it is usually quite mechanically complicated. Moreover, the saw hole assembly is of a special size, and only holes with a specific diameter can be drilled. When a larger size hole is to be drilled, another set of saw hole assembly must be used.

Another disadvantage of the existing hole saw assembly is that the hole saw device can only accommodate one hole saw at a time, and two hole saws cannot be used at the same time.

Other rotating tools, such as grinding wheels or sanders, must use multiple turntables of different specifications to treat the surface to a certain degree. In addition, other application tools or rotating tools, such as automobile polishing wheels, have improved surface characteristics during polishing, and the polishing wheels need to be replaced during the processing. Constantly changing the tools on the rotating device takes manpower and time, causing frustration and no time limit. Therefore, it is not difficult to find that although it is more suitable to change another tool, the user will avoid changing the tool and will continue to use the same tool.

The purpose of the present invention is to provide a universal rotary joint that can install tools on a rotary device, solve at least part of the aforementioned problems, and provide the public with a practical alternative.

The second objective of the present invention is to provide a joint, which is particularly suitable for hole saws and other rotating tools, including but not limited to tools such as grinding wheels, polishers, and sanders.

Another object of the present invention is to provide a joint which can easily connect or detach the tool to the rotating device. Another object of the present invention is to provide a universal joint, which can connect an article to a rotating mechanical device, thereby driving a tool to rotate.

[Technical Means for Solving Problems of the Invention]

Therefore, in an embodiment of the present invention, a joint includes: a base that can rotate around a longitudinal axis, and includes an additional tool to attach to a device, the base further includes a connecting device; a coaxial drive The device can be rotated around the longitudinal axis and can be rotatably joined to the connecting device of the base; a coaxial locking ring can be rotated around the longitudinal axis, and further can be in the first and second positions relative to the driving device When the locking ring is in the first position, it can be engaged with the connecting device of the base to prevent the longitudinal relative movement of the base, the driving device and the locking ring.

Preferably, when the locking ring is in the second position, the base can freely move longitudinally from the driving device and the locking ring. Preferably, the additional tool extends longitudinally outward, and the connecting device extends inward in the opposite direction.

Preferably, the locking ring is biased to the first position.

In another embodiment of the present invention, a joint includes: a hub having a longitudinal axis, the hub includes an additional tool extending longitudinally, and further includes a convex portion extending in the opposite direction, the convex portion including a shoulder Part; a driving device arranged coaxially with the hub, which includes a body with a channel arranged coaxially with the convex portion; a locking ring arranged coaxially with the driving device and the hub, the locking ring includes a channel , And can rotate around its longitudinal axis from the first position to the second position. When the locking ring is in the first position, the locking ring channel is aligned with the driving device channel and the convex part, so that the convex part can be freely When inserted or removed, when the locking ring is in the second position, the channels are not aligned, thereby locking the shoulder of the convex part to the driving device.

Preferably, at least two protrusions are coaxially aligned with the two driving device channels and the two locking ring channels.

In still another embodiment of the present invention, a rotary tool support assembly includes: a hub, one end of which can carry a tool, and the other end of which can support two shafts; a driving device, which is arranged coaxially with the hub and includes a body , The body has two round holes for the shaft to penetrate coaxially; a locking ring is arranged coaxially with the driving device and the hub, the locking ring includes two openings and can surround its longitudinal axis from the first position Turn to the second position, where when the locking ring is in the first position, the opening of the locking ring is aligned with the circular hole and the shaft, so that the shaft can be inserted or removed at will. When in the second position, the The openings are not aligned, thereby locking the shaft to the locking ring.

In a further embodiment of the present invention, a hole saw assembly includes: a hole saw with a plurality of cutting teeth at one end and two shafts at the other end; a spindle aligned with the hole saw and includes A body with two circular holes for the shaft to penetrate coaxially; a ring wheel, arranged coaxially with the mandrel and the hole saw, the ring wheel includes two openings, which can surround its longitudinal axis from the first The position is rotated to the second position, where when the ring wheel is in the first position, its opening is aligned with the circular hole and the shaft, so that the shaft can be inserted or removed at will, and in the second position, the opening is not Align, thereby locking the shaft to the ring wheel.

Preferably, the ring gear train is biased to the second position.

Preferably, the hole saw assembly includes a base from which two shafts extend, and the base includes an installation tool for mounting on a hole saw. Preferably, the hole saw includes an inner screw hole, which can be extended from the base and engages with an outer flange with threads.

Preferably, the shaft has a short rod adjacent to the outer end, and a top cover on the outer end, the top cover has an inner surface, and when the ring wheel is in the second position, the inner surface can engage with the ring wheel, This will lock the shaft so that it cannot move longitudinally. Preferably, the hole saw assembly includes a drill cone mounted on the mandrel, and the drill cone extends to the outside of the hole saw.

In another embodiment of the present invention, a hole saw assembly includes: a hole saw having a longitudinal body, one end of the body has a plurality of cutting teeth, and the other end has an inner screw hole; a base, which It includes a disc arranged coaxially with the main body of the hole saw, and includes a flange with thread. The flange extends longitudinally from the disc and can engage with the screw hole of the saw. The disc includes a pair of shafts. , Extending longitudinally in the opposite direction of the hole saw, each shaft includes a cylinder adjacent to the disc, a short rod adjacent to the outer end of the shaft, and a chamfered top cover, the diameter of the top cover Approximately equal to or smaller than the diameter of the cylinder; a mandrel, which is coaxially aligned with the base and the hole saw, the mandrel includes a body, and a drill cone extends from the body, the drill cone penetrates the base and the hole saw The mandrel further includes two round holes for coaxial penetration of the shaft of the base; a ring wheel, which is located on the top of the base, can rotate between the first position and the second position, the ring The wheel further includes two openings. When the ring wheel is in the first position, the opening is aligned with the circular hole of the mandrel and the shaft of the base, and when in the second position, the opening is not aligned with the circular hole of the mandrel or The shaft of the base is aligned. The thickness of the mandrel body and the ring wheel is based on the fact that when the short bar engages with the ring wheel, the top cover will extend the length of the ring wheel. When in the second position, the ring wheel locks the shaft. Relative vertical position.

Preferably, the mandrel of the hole saw assembly includes an inner hole saw and an outer hole saw, and the inner hole saw extends outside the outer hole saw.

In yet another embodiment of the present invention, a hole saw assembly used on a drilling machine includes a hole saw and a spindle, and is characterized in that it includes a biasing element, when the biasing element is located at the first In the position, the hole saw device on the spindle can be engaged and locked, and when moved to the second position, the biasing element opens and releases the hole saw, so that the spindle and the hole saw can be separated.

The advantage of the aforementioned design is that the hole saw can be quickly removed and reinstalled on the mandrel without the use of screws or tools. This is a good advantage when the hole saw is stuffed and needs to be cleaned, or when the hole saw is replaced with a hole saw of another size.

Another advantage is that through the use of the hub, the commonly used hole saw can be used on the spindle.

In yet another embodiment of the present invention, a connector includes: a base having a longitudinal axis and including an additional tool for mounting on a device, the base further includes a connecting device; a coaxial mating device, Engaged with the base; a coaxial locking ring, relative to the counterpart device, around its longitudinal axis from the first position to the second position, when in the first position, the locking ring can engage the connection of the base Device to prevent the longitudinal relative movement of the base, the matching device and the locking ring.

The connector can be used to connect multiple items, using multiple connectors to connect larger devices.

The following detailed description of the present invention refers to the attached drawings. Although this description includes examples, there are other embodiments, which can be changed within the spirit and scope of the present invention. As far as possible, the same reference numerals are used in the drawings and the following description to represent the same and similar parts. As mentioned above, the present invention has multiple applications and is not limited to the specific embodiments illustrated here.

The joints shown in the first to thirteenth figures are used with the hole saw, the eighth to tenth figures show another structure of the hole saw and its base, and the eleventh to thirteenth figures Shows a shorter shaft and a locking ring of different structures, where the shaft does not protrude from the top surface of the locking ring.

The fourteenth to sixteenth figures show that different tools can be used for this joint, and different tools are installed on the base or hub by different methods. Figures 17 and 18 show another variation of the shaft or flange, which includes a change in the structure of the locking ring, which is used to rotationally lock the hub to the spindle.

The nineteenth to twenty-seventh figures show the application of the present invention to connect larger rotating objects to a driving device, such as joining a car tire to a wheel axle.

Finally, Figures 28 and 29 show the application of the present invention to other rotating devices, such as a simple ratchet wrench.

Although the present invention relates to connecting a rotary drive device with a tool or article that is driven by a rotation, the present invention can also be used for the joining of static connectors that require quick joining and disassembly. The present invention is not limited to the use of rotary drive, and can also be applied to and especially suitable for all situations that require quick and reliable joints, and the joint is used as a bearing for rotary motion.

It should be understood that multiple sets of joints can be used at the same time to provide larger devices, such as the easy assembly and disassembly of the large pole frame at the front of the car. The pole frame needs to be disassembled when driving in pedestrian areas or urban areas. .

The scheme and embodiments of this case will be described in detail.

Please refer to the first to fifth figures, which show a joint 10 which includes a tool, namely a hole saw 12, a base or hub 14, and a spindle or driving device 16.

The saw 12 includes a cylindrical body 18 with cutting teeth 20 at one end. The other end of the hole saw 12 includes a screw hole (with internal thread) 22. The outer surface of the hole saw body 18 includes a shoulder 24 arranged on the circumference near the screw hole 22, so that a tool such as a wrench (Not shown) It can be engaged with the hole saw 12 to perform a rotational movement.

The base 14 includes a disk 26. A flange 28 engraved with threads (external threads) extends coaxially from the disc 26, and the size and shape of the flange 28 can fit with the screw hole 22, so that the hole saw 12 can be tightly locked on the base. The disc 26 includes a shoulder 30 to engage with a tool. Those who are familiar with the art can understand that when using two tools, one is on the hole saw 12 and the other is on the base 14, the hole saw 12 can be detached from the base.

On the edge of the disc 26, two identical shafts 32 and 34 extend in the opposite direction of the flange 28. Since the two shafts have the same function and are used in the same way, only one of them will be described in the following description. However, the description is also applicable to the two shafts.

The shaft 32 includes a cylinder 36 extending from the disk 26, which is joined to the disk by well-known techniques, such as screws or press-fitting. A short rod 40 is attached to the outer end of the cylinder 36. The outer end of the cylinder 36 has a chamfered top cap 42. The outer diameter of the top cap 42 is the same as the diameter of the cylinder 36.

The mandrel 16 includes a longitudinal body 44 from which a drill cone 46 extends coaxially, and the drill cone 46 is rotatably fixed on the body 44. On the body 44, a milling cutter shaft 48 extends in the opposite direction to the drill cone 46, which has a shoulder 50 that can be inserted into an electric drill (not shown). The main body 44 includes two round holes 52 and 54 whose positions and sizes allow the shafts 32 and 34 to be inserted and passed. The shaft 32 is inserted in the round hole 52 and the shaft 24 is inserted in the round hole 54 . Generally, the diameter of the circular holes 52 and 54 is just enough to accommodate the shaft 24 to be mounted on the body 44.

The length of the main body 44 is equal to the length of the cylinder 36 from the disc 26 to the short rod 40. Therefore, when the shaft 32 is inserted into the main body 44, the short rod 40 and the top cover 42 protrude out of the main body 44.

A coaxial ring wheel or locking ring 56 is located on the top of the main body 44, which can rotate and move between a first position and a second position. The ring wheel 56 includes two openings 58 and 60 with corresponding shapes and sizes. When the ring wheel 56 is in the first position, the openings 58, 60 are just aligned with the circular holes 52 and 54, and when the ring wheel is in the second position, the openings 58, 60 are not aligned with the circular holes 52 and 54.

Those skilled in the art can understand that when the ring wheel 56 is aligned with the body 44, the short rod 40 and the top cover 42 can extend into the ring wheel 56. The thickness of the ring wheel 56 is equal to the length of the short rod 40. Therefore, when the short rod is completely inserted into the spindle 14, only the top cover 42 extends behind the plane of the ring wheel 56.

When the shaft 32 is completely inserted into the spindle 16 and the ring wheel 56 is placed in the second position, the top surface 62 of the ring wheel meshes with the inner edge 64 of the top cover 42 to effectively prevent the shaft 32 from detaching from the spindle. The base 14 and the hole saw 12 are fixed to the mandrel 16 so that the hole saw 12 can be used for drilling holes.

When the ring wheel 56 is biased to the second position, in other words, in the locked position, a rotating force must be applied to rotate the ring wheel 56 to the first position so as to extract the shafts 32 and 34. Generally, the direction of rotation from the first position to the second position is the same as the direction of rotation of the drilling machine.

Those skilled in the art should be able to understand that the hole saw combination allows the hole saw to be quickly installed on or removed from a spindle 16 installed on the drilling machine. Since the diameter of the hole saw 12 has nothing to do with the size of the base 14 and the spindle 16, as long as the ring wheel 56 is rotated from the first position to the second position, a variety of hole saws 12 can be easily installed to the center. Shaft 16, or removed from the spindle 16.

However, in order to make the installation work of the hole saw 14 to the spindle 16 faster, the bottom surface of the ring wheel 56, that is, the peripheral edges 66 of the openings 58 and 60 on the side facing the base 44 may be tapered or chamfered. When the shafts 32 and 34 are inserted into the circular holes 52 and 54 of the mandrel 16, the top cover 42 forces the ring wheel 56 to rotate to the first position. When the top cover 42 extends out of the top surface of the ring wheel 56, the biasing device causes the ring wheel 56 to be locked in the biased position, thereby locking the base 14 and the hole saw 12 to the spindle 16, thus providing tools An automatic buckle design for the operator.

The body 44 usually clamps the drill cone 46 with a screw 70. However, those with skills can also use other general techniques to achieve this.

The ring wheel 56 uses a buckle 72 to fix the position. In order to prevent the opening 58 or 60 from being closed due to the rotation of the buckle 72, a pointed tip (not shown) or a flange can be used to lock the buckle 72 with respect to the ring wheel 56.

Please refer to the sixth and seventh figures, which show the locking ring or ring wheel 56 in detail, especially the deflection arrangement position. The ring wheel 56 includes a groove 74 in which a biasing device is arranged, and the biasing device is usually a spring (not shown). There is a pipe 76 at one end of the groove, and there is a guide pin 78 in the pipe 76, which can slide in the pipe 76. The guide bolt 78 is engaged with a correspondingly shaped hole (not shown) on the body 44, so that when the ring wheel 56 is placed on the top of the body 44, the guide bolt 78 is locked. The length of the pipe 76, that is, the movable distance of the guide bolt 78, as shown in the two positions in the sixth and seventh figures, limits the range of rotation of the ring wheel 56, as shown in the third figure.

As mentioned earlier, the hole saw is mounted on the base or hub. However, the hole saw can also be integrally formed with the shaft so as to mesh with the mandrel. This embodiment is shown in the eighth figure, in which it can be seen that the hole saw 80 has integral shafts 82 and 84, the shape and function of which are as previously discussed. The shaft can be press-fitted, bolted or fixed to the hole saw through other devices, or can be integrally formed with the hole saw. This type of hole saw can be made by, for example, mechanical or metal casting, and its advantage is that it can reduce the number of parts produced and reduce the cost.

To facilitate the handling of the shaft, if it is necessary to lock the shaft to the hole saw, the shaft may include a shoulder 86 to engage with the tool, which is also a feature of the previous embodiment.

If the diameter of the hole saw is large, as shown in the ninth figure, the hole saw 88 can be fixed on the base 90 with screws 92 and 94 instead of using threaded engagement elements. The screws 92 and 94 penetrate the hole saw 88 The openings 96 and 98 at the bottom are respectively connected to the ends of the shafts 100 and 102, thereby locking the hole saw 88 on the base 90.

In another embodiment, the flange 28 of the base 14 in the first to fifth figures can also be significantly longer than the currently known length. This allows two hole saws to be installed on the same base 14. This is a very practical feature, and the operator will want to drill a larger hole in an existing hole, where the size of the smaller hole saw is the size of the existing hole. The small hole saw can be used as the actual guide center to cut larger holes in a symmetrical position. As shown in FIG. 10, the hole saw assembly according to the preferred embodiment includes a smaller hole saw 104 which extends longitudinally beyond the larger hole saw 106. The choice of the diameter of the smaller hole saw 104 is that its outer surface 108 can be engaged with the inner surface of the hole 110 on the wall 112. When the hole saw 106 is engaged with the wall 112, the hole saw 106 will not rotate to ensure the wall 112. A large hole 114 coaxial with the small hole 110 is cut out.

Figures 11 to 13 show a hole saw assembly according to another preferred embodiment of the present invention. In this embodiment, the hole saw 12 and the base 26 are of the same type as discussed above. However, the total length of the shafts 116 and 118 is relatively short, and the shafts also have a short rod 40 and a top cover 42. Assuming that the size of the base and the ring wheel are the same, the short shaft rod will not protrude behind the ring wheel as in the previous embodiment. This can be clearly seen from the eleventh and thirteenth figures, the shafts 116 and 118 do not protrude from the top surface 120 of the ring wheel 122.

Since the shafts 116 and 118 do not protrude from the ring wheel 56, the aforementioned method of locking the mandrel to the shaft is no longer applicable. Therefore, near the top surface 120 of the ring wheel 56, the openings 124 and 126 are partially enlarged to form an inner shoulder 128 to engage the inner edge 64 of the top cover 42. Therefore, the openings 124 and 126 of the ring wheel 56 are circular cross-sections, which are only the length of the short rod 40 from the bottom surface 68 of the ring wheel 56. And 118 lock or release.

This embodiment avoids the problem of using recesses or similar means to prevent the buckle 72 from rotating, and at the same time avoids the top cover from obstructing the clamping of the drill bit, reducing the risk of the top cover blocking the buckle ring. Moreover, it provides a more beautiful appearance. In this embodiment, the diameter of the top cover can be smaller than the diameter of the shaft to provide more material for the walls of the openings 124 and 126 when manufacturing the locking ring.

Although it is not shown in the figure, it can be understood that in some cases, locking nails can be used to ensure that the locking ring does not come out. Especially when the rotation is very fast, such as in the grinding wheel, the rotation speed can reach 18,000 revolutions per minute. A similar locking ring can also be incorporated into this design, and will not be described in detail here.

The reader should now be able to understand the subject of the present invention and the significant advantages of using a rotary joint. This type of rotary joint is particularly useful when used to mount the hole saw to, for example, a hand-held drilling machine. However, other tools are also properly installed on the joint.

For example, as shown in Figure 14, the present invention can also be used to mount a polishing wheel 130 to the base 26. The polishing wheel 130 has a threaded shaft 132 and can be locked to a threaded flange 28. The structure of the joint There are only a few necessary changes to the front joint, such as the absence of a shaft shoulder 86 that helps the shaft to be locked to the hub. Other tools, such as the wire brush 134, as shown in the fifteenth figure, can also use a threaded collar 136 to be rotatably mounted to a threaded flange. The collar 136 clamps the central circular seat 138 of the wire brush 134. .

Other variations of the joint of the present invention include the change of the mandrel, so that the locking ring 56 can be accommodated in the mandrel. Its outer end includes a screw hole 140 so that the mandrel can be bolted to a shaft or the like. The foregoing or their combination is exactly the same. Therefore, as shown in FIG. 16, the joint can also use the collar 136 to clamp the grinding wheel 142 on the hub 14.

Those skilled in the art should now understand that this solution to the problem can quickly install or remove a tool to a driving device or spindle, and use a locking ring to engage the wheel hub with the tool to prevent the tool from being removed. The spindle is separated, and the spindle can drive the wheel hub and the tool to rotate.

Therefore, it is obvious that other shapes of the hub and the spindle are also within the scope of the present invention, including those shown in Figures 17 and 18.

The seventeenth figure shows a hollow hub 144 with a cylindrical outer wall or sleeve 146 extending from one direction of the base, and a threaded flange 148 extending from the opposite longitudinal direction, the flange 148 can be connected to a tool . A pair of circumferentially symmetric shafts 152 and 154 extend symmetrically from the top end 150 of the sleeve 146. The shafts 152 and 154 are coaxially engaged with the openings 156 and 158 at the top end of the mandrel 160 and the locking ring 162, respectively. The mechanism is the same as previously described. The size of the sleeve 146 can be slidably sleeved on the inner end 164 of the mandrel, and the top end 150 of the sleeve 146 abuts against the inner shoulder 166 of the mandrel 160. The joint is used to carry the hole saw, so a drill cone 168 is installed in the mandrel and fixed with screws 170. The spindle includes a shaft 172, which can provide rotational torque when connected to a driving device such as an electric drill (not shown).

Figure 18 shows another configuration of this joint, which has the same effect. The hub 174 is also hollow and has a bottom 176 and a sleeve tube 178. The sleeve 178 has a top end 180. A pair of flanges 182 extend from the top end 180 of the sleeve. Each flange 182 includes a rod 184 and a tapered end 186. Each rod 184 has a corresponding cutout 188 to form an inner shoulder 190. The tapered end 186 provides rotational force to rotate the locking ring 192 (clockwise in this figure), so that the flange 182 slides through the groove 194 of the locking ring 192 to the groove 196 of the spindle. Until the inner shoulders 190 of the two flanges pass through the grooves 194 of the locking ring 192, the locking ring 192 will deflect back to its deflected position or counterclockwise. At this time, the inner shoulder 190 abuts against the top surface 198 a of the locking ring 192. The height of the cutout 188 is the same as the thickness of the locking ring 192, so that the hub 174 is tightly fixed to the spindle 198. The width of the flange 182 near the cutout 188 is the same as the circumferential width of the groove 196 of the mandrel. Therefore, when a rotating force acts on the shaft 198b of the spindle 198, the spindle will rotate. The rotating torque passes through the spindle groove to the hub flange, so that the torque is applied to the hub.

When removing the joint, simply rotate the locking ring 192 until the groove 194 of the locking ring 192 and the groove 196 of the mandrel 198 are aligned. At this time, the tapered flange 182 can be easily pulled out. The hub 174 and the device can be released at the hub.

So far, it can be known from the foregoing description that the bias of the locking ring has been mentioned many times. Although this is a preferred feature, the locking ring does not need to be biased. In some cases, the rotation of the locking ring between two positions is sufficient. The first position locks the hub to the spindle, and the second position releases the hub. The two positions can be used, for example, by ball bearings. Semi-locking, therefore, it is necessary to apply an initial force to rotate the locking ring from any position. This design also helps the user feel the locking ring rotates from any position or rotates to any position.

The connector described in the present invention can also be used in larger applications. As shown in the nineteenth to twenty-seventh figures, the joint can be used to install automobile tires to the axle by using the same principle as described above.

Please refer to Figures 19 to 22. Existing tires can be retreaded and improved to accommodate a joint. Therefore, one side of the wheel 200 may include a plurality of threaded flanges 202, and as described above, the other side includes a plurality of connecting shafts 204 extending longitudinally in the opposite direction. The shaft 204 engages with a driving device, which includes a spindle 206 and a locking ring 208, which are connected to the axle 210. Therefore, any rotational movement of the wheel axle will be transmitted to the wheel 200, and the wheel 200 connected to the tire 212 passes through the circular hole 214 of the rim 216 through the flange 202 and is fixed with the car nut 218. Anyone should now be able to immediately think that once the wheel is fixed on the tire, the new tire can be assembled and removed as long as the locking ring is used. The tire assembly includes the tire and the disc with the shaft. Of course, it must be ensured that the design complies with various legal specifications, and the locking ring is fixed in the locked position. This requirement can be achieved by using a lock bolt (not shown) or electromechanical control of the relative angular position of the locking ring. It can even be controlled by the driver in the car. It can also be achieved, for example, by using a key, only when the car is stopped. It starts when moving.

It is helpful to build the rim, such as the rim of a wheel made of magnesium alloy, together with the axle to integrate with the tire. The twenty-third to twenty-seventh figures show that the rim 220 has an integral shaft 222, and the shaft 222 can be engaged with the spindle 206 and the locking ring 208. The engagement method has been described many times before. In this description, it is assumed that the locking ring 208 is not actually biased, but is controlled electromechanically or hydraulically by the driver. Before joining, the spindle hole 224 and the locking ring opening 226 are coaxially aligned with the shaft 222 so that the tire can be easily installed on the spindle until the top cover 228 of the shaft 222 extends behind the locking ring 208. Then, the locking ring is rotated by 208 (Figure 25) until the inner edge 230 of the head of the shaft 228 stops on the top surface 232 of the locking ring, so that the tire is locked. It should be understood that the top cover 228 in this embodiment does not have to be circular, and it can have any irregular structure or shape.

As shown in Figure 26, another feature of the present invention is that the driving device can be modified to meet the needs and protect the tire assembly. Therefore, as shown in the figure, the locking ring 208 can be accommodated in the mandrel 206, and the top surface 232 of the locking ring 208 abuts against the inner surface 230 of the top cover 228 to prevent the shaft 222 from sliding from the mandrel 206.

Another helpful change is to make the top surface 234 of the locking ring 208 tapered, as shown in Figure 27. Therefore, when the locking ring 208 rotates, a longitudinal force will be exerted on the shaft 222, pulling the tire tightly toward the driving device.

The present invention can be applied not only in the case of continuous rotating motion, but also in the case of periodic rotating motion, where the user needs to easily attach or remove tools. As shown in Figure 28 and Figure 29, this joint can be used in a ratchet wrench or wrench. It includes a driving device 236 and a biasing locking ring 238, the driving device 236 and the biasing locking ring 238 There is an opening 240, and when the locking ring 238 is in the non-biased position, the opening 240 is coaxially aligned. A sleeve 242, which includes two connecting shafts 244, can be engaged with the driving device 236 and the locking ring 238. As is well known, the sleeve 242 is used to lock or loosen the nut. This joint is used as a combination of wrench and socket not only to quickly replace sockets of different sizes, but also to ensure that the sockets will not fall off easily, which is a common problem.

Of course, for a socket and wrench combination with only one shaft, the present invention can also be used, as shown in Figure 29. When the wrench driving device 246 includes a male flange 248 that can be engaged with the female opening 250 of the sleeve 252, the combination can be used. The function of the single shaft 254 for holding the sleeve 252 on the wrench is more important than providing rotational movement, which is achieved by the engagement of the male element and the female element.

Other advantages and improvements of the present invention can also be achieved within the scope of the present invention. Although the present invention is illustrated and described based on the most practical and best embodiments, it is not limited to the detailed content disclosed here, and any and all equivalents can be achieved outside the scope and spirit of the present invention according to the scope of the patent application. The equipment and equipment.

The scope and abstract of the patent application of the present invention, in addition to the textual expression and necessary hints, the word "including" contains the opinion of "including". Levy related.

<p>10Connector</p><p>100,102Axle</p><p>104Hole saw</p><p>106Hole saw</p><p>108Outer surface</p><p>110hole</p><p>112Wall</p><p>114Hole</p><p>116,118Shaft</p><p>12Hole saw</p><p>120Top surface</p><p>122Ring wheel</p><p>124, 126 opening</p><p>128Inner shoulder</p><p>130Polishing wheel</p><p>132Axis</p><p>134Line brush</p><p>136Collar</p><p>138round seat</p><p>14Base or hub</p><p>140Screw hole</p><p>142Wheel</p><p>144Wheel</p><p>146Outer wall or casing</p><p>148Flange</p><p>150Top</p><p>152,154Shaft</p><p>156, 158 opening</p><p>16Mandrel or driving device</p><p>160Mandrel</p><p>162Locking ring</p><p>164Inner end</p><p>166Inner Shoulder</p><p>168Drill Cone</p><p>170Screw</p><p>172Axle</p><p>174Wheel</p><p>176Bottom</p><p>178Casing</p><p>18Ontology</p><p>180Top</p><p>182Flange</p><p>184Pole body</p><p>186Conical end</p><p>188Cut</p><p>190Inner shoulder</p><p>192Locking ring</p><p>194Groove</p><p>196Groove</p><p>198Mandrel</p><p>198aTop surface</p><p>198bAxle</p><p>20tooth</p><p>200 Roulette</p><p>202Flange</p><p>204Axle</p><p>206Mandrel</p><p>208Locking ring</p><p>210Axle</p><p>212Tire</p><p>214Circular hole</p><p>216Rim</p><p>218Nut</p><p>22Screw hole</p><p>220Rim</p><p>222Axle</p><p>226Open</p><p>228Top cover</p><p>230Inner edge</p><p>232Top surface</p><p>234Top surface</p><p>236Drive</p><p>238Locking ring</p><p>24Shoulder</p><p>240Opening</p><p>242Sleeve</p><p>244Axle</p><p>246Drive</p><p>248Male flange</p><p>250Female opening</p><p>252Sleeve</p><p>254Axle</p><p>26Disc</p><p>28Flange</p><p>30Shoulder</p><p>32,34Axle</p><p>36Cylinder</p><p>40Short</p><p>42Top cover</p><p>44Ontology</p><p>46Drill Cone</p><p>48Milling cutter shaft</p><p>50Shoulder</p><p>52,54round hole</p><p>56Ring wheel or locking ring</p><p>58, 60 opening</p><p>62Top surface</p><p>64Inner edge</p><p>66Circumference</p><p>68Bottom</p><p>70Screw</p><p>72buckle</p><p>74Groove</p><p>76Pipe</p><p>78Guide Pin</p><p>80Hole saw</p><p>82,84Shaft</p><p>86Shoulder</p><p>88Hole saw</p><p>90Pedestal</p><p>92,94screw</p><p>96,98Open</p>

The first figure is an isometric exploded view of the joint of the embodiment of the present invention, showing that the tool is a hole saw, a base or a hub, a spindle or a driving device, and a locking ring. The hole saw has a thread to engage with the hub; Figure 1 is a side view of the mandrel or drive device of the embodiment of the present invention in Figure 1; Figure 3 is a top view of the mandrel or drive device of Figure 2; Figure 4 is a side view of the first Figure when the joint is not connected. The hub has not been engaged with the driving device; the fifth picture is a partial cross-sectional view of the joint in the first picture, showing the position where the hub and the spindle are engaged; the sixth picture is the locking ring of the joint in the first picture is locked or deflected The detailed schematic diagram of the bottom surface in the moving position; the seventh diagram is the detailed schematic diagram of the bottom surface when the locking ring of the connector in the first diagram is in the unlocked position; the eighth diagram is the hole saw and the hub used in the present invention Schematic diagram, the hole saw and the hub are integrally formed; the ninth diagram is a schematic diagram of another structure of the hole saw connected to the hub, in which the hole saw is fixed to the base or the hub with screws; the tenth diagram is the joint The schematic diagram shows that two hole saws of different diameters can be rotatably connected to a hub with a longer thread; the eleventh diagram is a schematic diagram of a joint according to the second embodiment of the present invention, in which the connecting shaft of the hub is accommodated In the locking ring, the top surface is not protruding; the twelfth figure is a schematic diagram of the hole saw and the base of the eleventh figure, showing the shorter shaft; the thirteenth figure is the eleventh hole sawing The cross-sectional view of the device assembly, the hole saw and the base have been installed on the mandrel; Figure 14 is an exploded schematic view of the joint according to the present invention, the tool is a polishing wheel, which includes internal threads to engage with the hub ; Figure 15 is an exploded schematic view of the joint according to the present invention, the tool is a circular wire brush, which uses a collar to engage to the hub; The ring is screwed and fixed in the mandrel, the mandrel includes an internal thread to connect to the driving device; Figure 17 is an exploded schematic view of the second embodiment of the joint of the present invention, the hub includes an outer tube that is engaged on the mandrel, And supports the connecting shaft; Figure 18 is an exploded schematic view of the third embodiment of the joint of the present invention, the hub includes an outer sleeve, which is engaged on the spindle, and supports the outer diameter connecting flange; The figure is a schematic diagram showing the assembly of connecting a rotating wheel disc to the wheel axle using a joint; the twentieth figure is a cross-sectional exploded view of the nineteenth figure when the joint is used to install automobile tires, and the twenty-first figure is the twentieth wheel axle Assembly and cross-sectional view of the tire; Figure 22 is a schematic diagram of the tire in Figure 21, including the rotating wheel after installation; Figure 23 is a cross-sectional view of the joint, the tire includes integral molding The connecting shaft; the twenty-fourth figure is the figure of the twenty-third figure after the joint is joined; the twenty-fifth figure showsShown in Figure 23 after the joint is locked by the locking ring; Figure 26 is a detailed partial schematic diagram after the connecting shaft is locked to the mandrel; Figure 27 is used as the second Figure 16 shows the locking method, but there is a further feature of the inner cone surface to assist the locking of the shaft; Figure 28 is a schematic diagram of the joint implemented in accordance with the present invention for a ratchet wrench; and Figure 29 It is a schematic diagram of the joint in Figure 28, which has shafts of different structures.