JP2006226029A - Non-slip material for stairs - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-slip material for stairs capable of preventing the non-slip material from being displaced in the longitudinal direction, securing safety, providing excellent aesthetic appearance, and capable of being easily installed by solving problems in a conventional non-slip material wherein if the soft non-slip material is shrunk due to secular change or temperature change or residual stress in molding, it is liable to cause a longitudinal displacement from a base. <P>SOLUTION: This non-slip material for stairs comprises the soft non-slip material 1 formed in a roughly band shape and the soft base 3 fitted to both side edges of the non-slip material 1 and having, on its upper surface, a fitting recessed part 2 on which recesses and projections are arranged continuously approximately through its overall length in the longitudinal direction of its bottom surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an anti-slip for stairs.

  Conventionally, a non-slip for staircase formed by fitting and fixing a soft non-slip material to a hard base in order to make it possible to replace a soft non-slip material has various width dimensions by cutting appropriately. The non-slip material is mass-produced in advance with an equal cross-sectional shape by extrusion so that it can be attached to the stairs. However, in order to take such a manufacturing method, if the soft anti-slip material shrinks due to aging, temperature change, residual stress at the time of molding, etc., the base formed in accordance with the shape of the anti-slip material In particular, in the vicinity of corners such as landings where stepping pressure tends to act in the longitudinal direction of the anti-slip for the staircase, the anti-slip material is pushed to the outer periphery of the staircase, There was a problem that a slightly large space without an anti-slip material was formed on the circumferential side.

And as what solves this kind of problem, what was indicated in patent documents 1 is proposed conventionally. In this conventional example, a wood screw that is driven through the fixing plate to the floor material of the stairs holds a washer with a projection. After fixing the fixing plate to the floor material with the wood screw, the anti-slip material is engaged in the fixing plate. By stopping, the projection of the washer pierces the back surface of the antiskid material, and the antiskid material is prevented from protruding from the fixed plate.
Japanese Utility Model Publication No. 63-44934

  However, if the anti-slip material is constrained by the locations of the wood screws provided in the form of dots in order to fix the base to the stairs as in the conventional example above, the protrusion must be deeply pierced with respect to the anti-slip material. For this reason, there is a drawback that the tip of the protrusion is exposed on the surface due to wear of the anti-slip material due to use, which is dangerous. In particular, in the case of a thin anti-slip material for staircases, which has been designed so that it does not protrude to the surface side when it is retrofitted without providing a recess in the stair nosing part in recent years, the anti-slip material is thin, so it is not exposed to the surface. It is difficult to do so.

  In this regard, for example, instead of the washer, the non-slip material and the base are bonded with double-sided tape or adhesive, or the base on which the anti-slip material is fitted is crushed together with the anti-slip material and pressed strongly. Although it is not impossible to prevent slippage of the non-slip material and the base, the former requires work on site in the same way as the above-described conventional washer. On the other hand, there is a problem that the appearance of the anti-slip for stairs is deteriorated.

  Furthermore, the work at the time of construction as described above, such as assembling the washer in the conventional example, may cause work mistakes.

  The present invention has been made to eliminate the above drawbacks, can prevent the slippage of the anti-slip material in the longitudinal direction, can be made safer, has an excellent appearance, and construction. The purpose is to provide an easy-to-slip stairs.

According to the present invention, the object is
A soft non-slip material 1 formed in a substantially strip shape;
Anti-slip for staircase having a hard base 3 having a fitting recess 2 fitted on both side edges of the non-slip material 1 and having concave and convex portions provided substantially continuously in the longitudinal direction of the bottom surface. Is achieved by providing

  According to the present invention, the anti-slip for stair has the anti-slip material 1 and the base 3 with the fitting recess 2 formed on the upper surface, and the anti-slip material 1 is used as the fitting recess 2 of the base 3. It is formed by fitting. The non-slip material 1 is formed in a substantially band shape that can be mass-produced by extrusion molding or the like, and is soft and elastically deformed by a stepping pressure to enhance the anti-slip effect and improve the treading feeling. On the other hand, the base 3 is so hard that it is not easily deformed by the stepping pressure, and the anti-slip material 1 is pressed from the side by the fitting recess 2. The bottom surface of the fitting recess 2 is substantially uneven in the longitudinal direction, and contacts the back surface of the anti-slip material 1 to be fitted to prevent the longitudinal displacement.

  That is, by forming the irregularities on the bottom surface of the fitting recess 2 over almost the entire length, the back surface of the anti-slip material 1 enters deeply into the recess on the bottom surface of the fitting recess 2 by the stepping pressure, that is, In order to deform into irregularities along the bottom surface, it can be firmly locked in the longitudinal direction to prevent displacement. Accordingly, the unevenness in the longitudinal direction can be reliably prevented by the unevenness of the step that is not exposed on the surface until the anti-slip material 1 is almost worn out. Moreover, since the uneven | corrugated level | step difference is low, since the insertion operation | work to the base 3 of the anti-slip | skid material 1 can be performed smoothly, replacement | exchange of the anti-slip | skid material 1 is easy, without impairing workability.

  The unevenness exerts a drag force enough to withstand the force expected to act in the longitudinal direction of the anti-slip material 1 due to the biting of the anti-slip material 1 to the entire length of the back surface or the deep biting of the part due to the treading pressure. In addition to increasing the level difference, for example, the formation area in the width direction of the anti-slip material 1 is increased, or the anti-slip material 1 is provided by a stepping pressure by providing a concave groove 6 on the back surface of the anti-slip material 1. It is also possible to increase the drag force by making it easier to deform. According to the inventor, in an experiment in which a treading pressure is assumed to be 60 kgf and an anti-slip material 1 made of a soft synthetic resin material is subjected to repeated loading 10,000 times, the uneven step due to knurling on the metal base is set to 0.5 mm. When set, it has been confirmed that the deviation can be suppressed to such an extent that it is practically acceptable.

  Furthermore, since the unevenness is formed on the base 3, it does not increase labor during construction. In addition, since the unevenness is disposed on the bottom surface of the fitting recess 2, the anti-slip material 1 is used in use. Since it is obscured, it does not affect the appearance.

Further, the slip in the longitudinal direction of the anti-slip material 1 is fitted to the end of the anti-slip material 1 and the end of the base 3 for sweeping out dust from the side wall surface of the staircase or the groove on the surface of the anti-slip material 1. This is caused by an increase in the gap between the end member and the like, which is effective in preventing the slippage of the anti-slip material 1 in the longitudinal direction.
The anti-slip material 1 can be effectively prevented from shifting by being configured such that the dimension holding body 4 and the synthetic resin material 5 with little dimensional change are integrally formed.

  That is, when the anti-slip material 1 is formed of the synthetic resin material 5 that has good productivity and is easily expected to shrink due to residual stress during molding, for example, the dimension holder 4 functions as a core. By doing so, shrinkage can be kept low. In particular, as described above, in the thin anti-slip for staircase, the anti-slip material 1 is also thin and easily contracted, so that a remarkable effect can be exhibited. Here, the dimensional change means a shrinkage of a dimension due to a change in external environment such as temperature or a secular change, and the so-called physical property of the dimension holder 4 is much more stable than that of the synthetic resin material 5. A material, such as metal or glass fiber, that is capable of preventing the appearance of the anti-slip staircase from being affected, and capable of suppressing shrinkage in the longitudinal direction thereof, Desirably, it is easy to integrate with the synthetic resin and does not cause much trouble in the cutting work of the anti-slip material 1, specifically, a metal foil, a metal number wire, a fiber-like one made of glass fiber, etc. It can be used.

  Further, if the base 3 is formed by bending a metal thin plate material, the productivity can be easily increased. In this case, the unevenness is converted into a thin plate material by knurling. By making it, productivity can be further improved.

  As is clear from the above description, according to the present invention, it is possible to prevent the slippage of the anti-slip material in the longitudinal direction, and it is possible to make it more safe, excellent in appearance, and easy to construct. Since the anti-slip material for stairs can be provided, the safety, aesthetics, and workability of the stairs facilities can be improved.

  FIG. 1 shows an embodiment of the present invention. In this embodiment, the anti-slip A for stairs has a vinyl tire (non-slip material 1) and a metal base (base 3), as shown in FIG. It is attached to the nose 11 of the stairs. The vinyl tire 1 is formed into an equal cross-sectional shape that is continuous in the longitudinal direction by extruding a soft synthetic resin material (synthetic resin material 5), and a plurality of protrusions that prevent slipping are formed at a predetermined pitch on the surface side. Is done. Further, a groove is provided at both side edge portions of the vinyl tire 1 so as to be depressed in the substantially central portion in the thickness direction, and the rear surface side projects from the front surface side across the groove. A stop 12 is formed.

  The metal base 3 has a hanging piece 13 corresponding to the raised portion 11a of the nose portion 11, and a fitting recess 2 formed corresponding to the tread surface 11b to which the vinyl tire 1 is fitted and fixed. It is formed in a letter shape. The metal base 3 is formed by bending a stainless steel plate material, and is formed on the tread 11b with a dimension corresponding to the thickness of the vinyl tire 1 from the upper end edge of the hanging piece 13 extending substantially vertically along the kick-up portion 11a. A front locking piece 14 is formed which is bent at a substantially right angle so as to extend along the side edge, and then folded back into a U shape so as to be fitted to a side edge located on the front side of the tread 11b of the vinyl tire 1. The Further, the lower end edge on the tread surface 11b side of the front locking piece 14 is extended along the surface of the tread surface 11b so as to extend the dimension equivalent to the width of the vinyl tire 1 to form a horizontal piece 15 that becomes the bottom surface of the fitting recess 2. The rear edge of the horizontal piece 15 is bent in a U shape so as to face the front locking piece 14 and is fitted to the side edge located on the rear side of the tread 11b of the vinyl tire 1. 16 is formed. In addition, the hairline-like pattern is given to the outer surface side of the said hanging piece 13 and the front part locking piece 14, and design nature is improved.

  Further, as shown in FIG. 1B, the horizontal piece 15 is provided with screw holes 17 and 17 having a countersink for passing the countersunk screw described above on the surface side, and knurled. Thus, the shift preventing portion 18 having a sawtooth cross section is formed. The screw hole 17 is arranged on the rear side of the horizontal piece 15, that is, on the rear side of the tread surface 11 b so that the countersunk screw to be inserted is firmly driven into the tread surface 11 b, and the slip preventing portion 18 avoids the screw hole 17. Thus, a plurality of projections and depressions are formed over the entire length of the horizontal piece 15 in the longitudinal direction of the horizontal piece 15 in a range closer to the front side of the tread 11b that is closer to the front side of the horizontal piece 15.

  The metal base 3 configured as described above is subjected to knurling (knurling) processing after drilling and bending with a forming machine on a thin stainless steel plate having a thickness of less than 1 mm, for example. It can be efficiently manufactured by performing knurling in the longitudinal direction using the feed of the workpiece in the forming machine as it is.

  Further, the fitting of the vinyl tire 1 to the metal base 3 is performed such that one side edge of the vinyl tire 1 is made to be one of the locking pieces so as to be inclined with respect to the horizontal piece 15 of the metal base 3. After being locked, the other side edge is temporarily elastically deformed so as to be bent and pushed into the other locking piece of the metal base 3, and the side edge is locked to the locking piece by elastic recovery. Made by. In the fitted state, as shown in FIG. 3A, the vinyl tire 1 has a front side edge portion on the front locking piece 14 of the fitting recess 2 and a rear side edge portion on the rear locking piece. 16, and the back surface is supported by the bottom surface of the fitting recess 2 and fixed to the nose portion 11. In this state, as shown in FIG. 2 and FIG. 3A, the slip stopper 18 formed on the bottom surface of the fitting recess 2 is located at the top on the front side of the back surface of the vinyl tire 1, that is, in the longitudinal direction of the vinyl tire 1. On the other hand, the vinyl tires 1 are supported over almost the entire length in the longitudinal direction so that the tops of the plurality of substantially vertical protrusions 19 are brought into contact with each other.

  Therefore, the anti-slip A for stairs is attached to the nose part 11 by fitting the vinyl tire 1 to the metal base 3 as described above after fixing the metal base 3 to the nose part 11 with a flat head screw. When a pedestrian walking on the stairs steps, the vinyl tire 1 is compressed by the stepping pressure and elastically deforms along the horizontal piece 15 of the metal base 3. For this reason, in the slip prevention part 18, the vinyl tire 1 is deformed so as to mesh along the unevenness from the state in which the back surface is supported by the top of the protrusion 19, and thereby, the parallax in the longitudinal direction that is orthogonal to the meshing direction. Movement is prohibited and deviation is prevented.

  Further, in order to increase the elastic deformation by stepping pressure, a concave groove 6 is provided on the back surface of the vinyl tire 1 described above. The concave groove 6 is formed by forming a part in the width direction of the back surface of the vinyl tire 1 at the time of extrusion molding, and is formed continuously over the entire length in the longitudinal direction. Further, the formation range of the concave groove 6 in the width direction of the vinyl tire 1 is set so as to be slightly overlapped with the stopper portion 18 in a plan view when fitted to the metal base 3 as shown in FIG. Is done. Therefore, when the pedal pressure is applied as described above, the vinyl tire 1 is compressed and elastically deformed between the contact surface with the horizontal piece 15 reduced by the concave groove 6 and there is no concave groove 6. As the weight per unit area increases as compared with the above, the depth of biting with the stopper 18 becomes deeper, so that the shift is less likely to occur. Alternatively, an appropriate biting depth can be obtained even when the synthetic resin material 5 is molded with higher hardness and less elastic deformation.

  In addition, a core material (size holder 4) is formed on the vinyl tire 1 to prevent contraction in the longitudinal direction due to secular change or the like. The core material 4 is formed by twisting glass fibers into a thread shape, and is inserted into the vinyl tire 1 over almost the entire length in the longitudinal direction by being fed at the same speed as the extrusion speed when the vinyl tire 1 is extruded. Therefore, the soft synthetic resin material 5 integrally formed on the core material 4 with less shrinkage is forcibly maintained in the longitudinal dimension by the core material 4, thereby stabilizing the longitudinal dimension of the vinyl tire 1 in the longitudinal direction. It is hard to slip.

  In the above, the case where the displacement preventing portion 18 is provided in the range corresponding to the front side of the tread 11b that is the front side of the horizontal piece 15 so as to avoid the countersunk screw is shown. The arrangement can be appropriately changed as required. For example, as shown in FIG. 3 (b), the vinyl tire 1 is provided in a range corresponding to the substantially central portion in the width direction, or FIG. 4 (a), ( As shown in b), it may be provided on almost the entire surface without considering the arrangement of the countersunk screw or the groove 6. The same applies to the recessed groove 6, and as shown in FIG. 4A, the contact area with the vinyl tire 1 displacement preventing portion 18 is simply increased without being provided at all, or as shown in FIG. 4B. By increasing the area and reducing the contact area, it is possible to deepen the bite and appropriately increase the resistance against the displacement of the vinyl tire 1.

  Further, the anti-slip formed on the upper surface of the vinyl tire 1 can be changed as appropriate. For example, as shown in FIG. 3B, the anti-slip may be dot-shaped. In this case, the vinyl tire 1 is formed in a strip shape by calendar molding or the like. Is possible. In addition, as shown in FIG. 3B, a vinyl tire 1 that does not have the core material 4 can be configured to be fitted to the metal base 3.

It is a figure which shows this invention, (a) is a disassembled perspective view, (b) is a perspective view which shows a use condition. FIG. 2B is a sectional view taken along line 2A-2A in FIG. It is a figure which shows the fitting state of a metal base and a vinyl tire, (a) is a principal part perspective view of this invention, (b) is the modification which eliminated the core material from the vinyl tire and formed the anti-slip | skid in dot shape FIG. It is a figure which shows the modification of this invention, (a) is sectional drawing when not providing a meat steal to a vinyl tire, (b) is sectional drawing at the time of providing a pair of meat theft in the width direction of a vinyl tire. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Anti-slip material 2 Fitting recessed part 3 Base 4 Dimension holder 5 Synthetic resin material 6 Groove

Claims (4)

A soft non-slip material formed in a strip shape,
An anti-slip for staircase having a hard base fitted on both sides of the anti-slip material and provided with a fitting recess on the upper surface thereof having concavities and convexities provided continuously over the entire length in the longitudinal direction of the bottom surface. The anti-slip material for stairs according to claim 1, wherein the anti-slip material is formed integrally with a dimension holding body and a synthetic resin material with little dimensional change. The anti-slip for stairs according to claim 1 or 2, wherein the base is formed by bending a metal thin plate material and rolling irregularities by knurling. The anti-slip material for stairs according to any one of claims 1 to 3, wherein the anti-slip material is formed with a downward concave groove on the back surface, and is easily elastically deformed so as to be deeply engaged with the unevenness of the bottom surface of the fitting recess by stepping pressure. .

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