Edge protection strip for step

BACKGROUND OF THE INVENTION The present invention relates to a stair edge profile having a stair angle profile and a base profile. The stair angle section has a stalk, the free end of which forms a blanket. The stalk also has a substantially rectangular stopper for the stair angle. The base profile is fixed to the staircase and the blanket lies on the staircase. The stair angle bracket and base profile can be fastened together.

A staircase profile of the kind described in the introduction is already known from US PS 4,455,797. This staircase profile consists of a staircase angle profile and a basic profile. The base profile is arranged in an L-shape around the stairs and is fixed at an angle to the stairs. At the stair edge, the base profile has a slope portion which serves as a stop-contact surface for the stair-angle profile. The outer side of the base profile and the inner side of the stair angle profile are form-fitting. The stair angle is made of plastic and contains air chambers to improve the damping properties. At the two ends of the staircase bracket are formed so-called blankets, which, after placing the staircase bracket on the base profile, press the staircase into the base profile. The application is limited to carpet floors which are compressed and clamped between the blanket and the base profile.

The disadvantage of this design is that its use is limited to staircases of precisely defined material thickness. When laying carpets with a higher material thickness or when using laminated floors or parquet, different material angles should be used for each material thickness.

It is an object of the present invention to further develop a staircase profile of the kind described in the introduction so that the staircase profile can be applied to staircovers of various material thicknesses.

In accordance with the present invention, this object is solved by securing the stair angle profile on the base profile through a height-adjustable bracket so that the blanket is always resting on the staircase.

Preferably, the stair angle profile and the base profile are releasably connected via a height-adjustable bracket. Especially when laying parquet and laminate flooring on spiral staircases, it is very important that the stairway bracket can already be installed to determine the position of the base profile. In the case of parquet and laminate flooring, the stair angle profile must be removable, since rigid stair coverings, especially for spiral staircases, cannot be retracted under the blanket.

It is also advantageous for the stair angle section to have two parallel guiding support surfaces spaced apart, which cooperate with the corresponding counter surfaces located on the base profile. The co-operation of the guide-support surfaces with the counter-surfaces on the base profile ensures the vertical displacement of the stair angle. In addition, the convenient arrangement of the guide-support surfaces and counter-surfaces allows the transfer of torque to the base profile when stepping on the staircase profile.

It is advantageous here to have a support plate facing the stair having a first guide-support surface formed on the side facing the stairs and that a suitable support plate has a counter-surface facing the first guide-support surface.

Advantageously, the second guide-bearing surface on the stopper and the associated counter surface is disposed on a substantially forward-facing front edge of the base profile.

In another preferred embodiment, the second guide-bearing surface is formed on the stop member and the associated counter surface is formed at a suitable location on the second support plate located on the base profile.

It is very advantageous for the height adjustment of the staircase bracket to have the support plates positioned on the base profile and the inner sides of the support plates being formed to form a threaded channel.

Advantageously, for this purpose, recessed holes are provided for receiving the tow bolts. With the help of the towing bolts, the distance between the stair angle bracket and the base profile is adjusted so that the blanket rests on the staircase. When screwing the tow bolts into the threaded channel, the wall of the base plate on the base profile is pressed against the counter surface on the base plate of the stairway bracket so that the height bracket and the base profile are simultaneously locked together with the height adjustment.

In one preferred embodiment, the cooperating surfaces are formed as interlocking surfaces.

In yet another preferred embodiment, the height-adjustable bracket is configured as at least one interconnecting plate with projections on the left and right of the lower leg. The projections may be connected to the corresponding notches on the inside of the sheets. Thanks to this interconnected design, the stair angle profile and base profile can be easily mounted and disassembled.

For finer degrees of height adjustment, it is highly advantageous for the left projections to be offset by a predetermined distance relative to the right projections of the at least one interconnecting plate or the left indentations relative to the right slots of the sheets.

Preferably, the interconnecting plates are spring-loaded at the point where they are joined to the foot.

The base profile preferably has holes for fastening on the stairs.

In order to provide a non-slip surface, it may be advantageous to provide grooves in the longitudinal direction of the profile on the outside of the step and to form butter on the transition between the step and the stop and / or on the blanket.

The upper and lower sides of the horizontal section of the base profile preferably have a groove to secure the base profile to the stairs.

If a staircase edge profile with a minimum material thickness is used, the inner side of the stop rod2

HU 219 902 Β

Ian has a shoulder or a stop that limits the deepest position of the staircase. This thickness of the staircase is advantageous in the case of extremely heavy-duty staircases, since the staircase angle may rest on the base profile in the collision position through the stop.

The production of the stair angle profile and the base profile from aluminum proved to be very favorable.

The invention will now be described in more detail with reference to the accompanying drawings, in which:

First Fig. 3 is a sectional view of an exemplary stair angle section,

Second Figure 3 is a sectional view of an exemplary basic profile, a

Third Fig. 4A is a sectional view of a stair angle profile and a base profile in an assembled condition using a vertical taper;

4th Fig. 4A is a sectional view of a stair angle profile and a base profile in assembled condition with a minimum thickness of the staircase, using an oblique taper;

5th Fig. 4a is a sectional view of a stair angle section and another embodiment of a base profile in a connected state,

6th FIG

7th Figure 6 is a cross-sectional view of the base profile corresponding to the stair angle profile of Figure 6, a

8th Figures 6 and 7 are cross-sectional views of the stair edge profile of the parts of Figs.

Fig. 1 is a sectional view of a stair angle member 1 forming a member of a staircase profile according to the invention. The stair angle section 1 consists of the stalk 2 and the stop rod 3 which is substantially perpendicular thereto. A support plate 10 is formed on the stalk 2 at a predetermined distance substantially parallel to the stop member 3, whose side facing the stop member 3 forms a first conductive support surface 7. The mandrel 2 extends beyond the support plate 10 and forms a blank 5 on this projection. The blanket 5 is slightly tapered towards the free end and the free end is rounded. The blanket 5 slopes slightly towards the top of the stairs. In step 2, recessed holes 15 are formed between the support plate 10 and the stop leg 3, into which tow bolts 16 are inserted. Longitudinal grooves 18 are formed on the surface of the stalk 2 at the transition between the stalk 2 and the stop 3 and above the support plate 10 and the cover plate 5 so that the surface is non-slip and step-proof. The outer side of the stop rod 3 is formed as a slope which goes downwards in radial curvature. In this embodiment, the inner side of the stop member 3 has a first shoulder 30 viewed from below, after which the inner side passes into a guide-support surface 6. The guide-support surface 6 cooperates with the front face of the bottom plate of the base profile 4 (Fig. 2). However, a separate thickening of the base profile 4 can be provided for such an end face.

Connected to the guide-support surface 6, a stop 20 is formed on the inner side of the stop member 3, which defines the minimum parquet thickness when the step angle profile 1 is pushed to the base profile 4.

Fig. 2 shows a basic profile 4 cooperating with the step angle 1 of Fig. 1. The base profile 4 has a substantially horizontal bottom plate. A counter surface 8 is formed on the front side of this bottom plate, which cooperates with the guide-support surface 6 on the inner side of the stopper 3. The base profile 4 is provided with two support plates 13 and 13. The inner side of these holding plates 11 and 13 is profiled to form a threaded channel 14 for the screws 16. A counter surface 9 is formed on the outside of the right-hand support plate 11, which cooperates with the guide-support surface on the inner side of the support plate 10 of the stair angle profile. The bottom plate of the base profile 4 has 17 holes. Through these screws 33 (Figures 3 and 4) passing through the holes 17, the base profile 4 is secured to the stairs. The bottom plate of the base profile 4 has grooves 19 on both sides so that the base profile 4 on the stairs and the stair cover 12 on the base profile 4 can be secured so that they do not shift relative to one another.

Fig. 3 shows the stair angle section 1 and the base profile 4 in assembled condition. The base profile 4 is secured to the step 31 by screws 33. The basic profile 4 in this embodiment is set so that a vertical step lining 32 can be placed on the stair end. It is very important for the positioning of the basic profile 4 that the stair angle piece 1 can be quickly installed. However, it is advantageous to install the stair cover 12, and in the case of parquet and laminate flooring, it is necessary that the stair angle piece 1 can be removed again. In this embodiment, the step angle profile 1 is applied to the base profile 4 so that the blank 5 is resting on the upper side of the step cover 12. The step angle 1 is then secured to the base profile 4 by the towing screws 16. When the tow bolts 16 are screwed in, the support plate 11 of the base profile 4 engages with the support plate 10 of the step-shaped section. The stop 20 is not actuated here because the material thickness of the staircase 12 is greater than the minimum.

Fig. 4 also shows, when assembled, the stair angular shape 1 of Fig. 1 and the base profile 4 of Fig. 2. In this embodiment, the thinnest stair cover 12 is chosen so that the stop 20 rests on the surface of the base profile 4. The base profile 4 and the stair angle profile 1 can be produced in different sizes as needed so that an optimum adjustment range is available for each of the 12 stair covers. In this embodiment, a sloping staircase profile with 32 degrees of lining is used.

Figure 5 shows a further embodiment in which the guide-support surfaces 6 and 7 and corresponding counter-surfaces 9 are formed by connecting elements. The base profile 4 in this embodiment has only one support plate 11. In this embodiment, the recessed holes 15 are not provided on the stair angle profile. Here, the staircase 12 has a minimum thickness. Of course, this embodiment is also applicable to thicker staircases.

Fig. 6 is a cross-sectional view of a variant of the stair angle section 1. The stalk 2 is essentially

GB 219 902 Β two switching panels 21 and 22 are formed perpendicularly. The outer faces of the coupling plates 21 and 22 have projections 23 and 24 for securing to the base profile 4, respectively. The projections 23 and 24 are symmetrical in this embodiment. However, in a further embodiment, the projections may be arranged to be offset relative to one another at a predetermined distance. The projections 23 and 24 are depicted here as teeth, the outward facing surface of which is flatter than the back surface relative to the longitudinal axis of the engaging plates 21 and 22. The transition of the coupling plates 21 and 22 to the stalk 2 is accomplished by an external trough 27 and an internal trough 28. The wall of the coupling plates 21 and 22 are offset inwardly by a slanting transition 29 to the joint.

Fig. 7 is a cross-sectional view of the base profile 4 corresponding to the stair angle profile 1 of Fig. 6. The inner sides of the support plates 11 and 13 have recesses 25 and 26 respectively. The notches 25, 26 in this embodiment are offset by one-half their spacing. The upper, inner sides of the support plates 11 and 13 have crevices. A spacer 34 is disposed between the two support plates 11 and 13. The spacer 34 has a prism-shaped upward point.

In Fig. 8, the stair angle profile 1 and the base profile 4 are shown in disassembled state, which requires only one mounting step for the mounted state. In the mounted position shown by the dashed line, the stair angled member 1 is completely pushed onto the base profile 4. This position is the position corresponding to the minimum material thickness of the staircase 12 in the prestressed state.

When mounted, it is clearly visible how the two support plates 11 and 13 surround the two guide support surfaces 6 and 7 and lie directly on the counter surfaces 8 and 9 of the support plates 11 and 13. The thickness of the support plates 11 and 13 is chosen such that the recesses between the guide-support surfaces 6 and 7 and the outer sides of the coupling plates 21 and 22 are almost completely filled. The height of the support plates 11 and 13 is aligned with the height of the coupling plates 21 and 22 and the height of the support plate 10 and the guide-support surface 6.

In the mounting position shown, only the left panel 21 engages with the projections 23 in the notches 25 of the left holding plate 13. The right-hand panel 22 is spring-loaded with its projections 24 in the mounting position shown, since the slots 26 and 25 of the support plates 11 and 13 are offset by one-half.

The illustrated embodiments are exemplary and non-limiting, as other non-illustrated embodiments are possible.