JP6867691B2 - Non-slip material for stairs - Google Patents

Description

The present invention relates to a non-slip material for preventing slippage, which is attached to the tip of a step plate constituting a staircase.

The non-slip material according to the present invention includes a base member fixed to the mounting surface of the mounting portion formed by notching in the corner portion located above the front side of the step plate, and a cap member covering the base member, and also includes a staircase. A cushioning element for shock absorption is provided at the position of the nose, and non-slip materials having the above configuration are known, for example, in Patent Documents 1 and 2. The base member constituting the non-slip material (step plate) of Patent Document 1 has a corner portion located at the front end portion of the step plate (step plate) and a groove portion fixed to the notch portion by a fixture. The corner portion has a surface layer portion and a substantially cross-shaped core portion that forms four hollow hole portions inside. The corners function as a buffer element that can ensure the safety of the pedestrian by elastically deforming and absorbing the impact when the pedestrian stumbles when going up and down.

The base member (non-slip body) of Patent Document 2 includes a strip-shaped flat plate-shaped base portion and a front end portion formed at the front end of the flat plate-shaped base portion and hanging downward. At the front end of the flat plate-shaped base portion, an arc-shaped cushioning portion having a hollow inside and projecting diagonally upward is formed. The function of the cushioning portion is the same as that of the corner portion of Patent Document 1, and the cushioning portion elastically deforms to absorb an impact, thereby functioning as a buffer element for ensuring the safety of a pedestrian.

Japanese Unexamined Patent Publication No. 2014-91916 Japanese Unexamined Patent Publication No. 53-82026

The non-slip material shown in Patent Documents 1 and 2 has a structure in which a hollow cushioning element located at the nose of a staircase is elastically deformed to absorb an impact, and the cushioning element has a good impact absorbing force. In order to exert the effect, it is necessary to increase the thickness dimension of the cushioning element in the vertical direction so that the deformable width of the cushioning element is sufficiently large. Therefore, in the configurations of Patent Documents 1 and 2, it is inevitable that the thickness dimension of the entire non-slip material in the vertical direction becomes large, and there is a limit to the thinning and compactness of the non-slip material. Further, the configurations of Patent Documents 1 and 2 have a disadvantage that the vertical recessed dimension of the mounting portion formed by the notch in the step plate becomes large, that is, the installation space of the non-slip material becomes large. From the above, in the configurations of Patent Documents 1 and 2, the mounting portion of the step plate and the non-slip material are inevitably enlarged, and it is inevitable that these are conspicuous. It was difficult to make it a patent, and there was an inconvenience that the design of the stairs deteriorated.

Further, in the conventional non-slip material, the dimensional tolerance of the non-slip material, the processing tolerance of the mounting portion, and the influence of the mounting position of the non-slip material on the mounting portion are not considered at all. For this reason, if the mounting positions of the non-slip materials mounted on the stairs cannot be uniformly aligned due to the influence of the above-mentioned dimensional tolerances and the like, there is a disadvantage that the design and appearance of the completed stairs are deteriorated.

The present invention has been made to solve the above-mentioned problems of the conventional non-slip material, and the cushioning element exhibits a good shock absorbing action while reducing the thickness and compactness of the cushioning element. At the same time, it is an object of the present invention to provide a non-slip material that does not impair the design and appearance of the completed stairs by minimizing the influence of the dimensional tolerance of the non-slip material.

The present invention targets the non-slip material 1 to be mounted on the mounting portion 4 formed by notching the corner portion located above the front side of the step plate 3. The non-slip material 1 has a base main wall 12 that is received by the upward mounting surface 5 of the mounting portion 4, and has a long left and right base member 10 fixed to the mounting surface 5 and a base member via a joint structure. It is composed of left and right long resin cap members 11 that are engaged and mounted on the 10. The cap member 11 has a cover wall 20 that covers the upper surface of the base main wall 12, and a front vertical wall 21 that covers the front surface of the base main wall 12. Then, the recessed portion 30 formed by recessing the lower half portion 28 of the front vertical wall 21 toward the rear is formed over the entire length in the left-right direction, and the upper half portion 29 of the front vertical wall 21 is forward. It is formed so as to cantilever toward the front, and the upper half 29 of the front vertical wall 21 is configured to be elastically deformable downward . When the cap member 11 is engaged and mounted on the base member 10 via the joint structure, the height position of the lower end of the lower half 28 of the front vertical wall 21 of the cap member 11 is the lower end of the base main wall 12 of the base member 10. When the cap member 11 is engaged and mounted on the base member 10 via the joint structure, the upper half 29 of the front vertical wall 21 is above the lower end of the base main wall 12. It is characterized in that it is configured to be located in.

It is desirable that the overhanging dimension (d1) of the front vertical wall 21 defined by the tip of the upper half 29 of the front vertical wall 21 and the lowermost end of the front vertical wall 21 is defined as 2 mm to 6 mm.

The cap member 11 has at least a front vertical portion having a first resin portion 25 having an engaging rail 22 forming a joint structure and a second resin portion 26 made of a resin softer than the first resin portion 25. It is possible to take a form in which the upper half portion 29 of the wall 21 is composed of the second resin portion 26.

Specifically, the front vertical wall 21 of the cap member 11 is formed by bulging forward in a semicircular shape toward the front and a quadrant arc shape toward the rear in the upper half portion 29. It can be composed of a lower half portion 28 having a recessed portion 30.

The front vertical wall 21 of the cap member 11 has an upper half portion 29 having an upper straight surface 40 extending in the vertical direction in a longitudinal side view, and a lower straight surface located rearward of the upper straight surface 40 and extending in the vertical direction. A recessed portion 30 can be formed between the upper straight surface 40 and the lower straight surface 41 by forming a stepped shape having the lower half portion 28 having 41.

In the non-slip material 1 according to the present invention, the recessed portion 30 formed by recessing backward into the lower half portion 28 of the front vertical wall 21 is formed over the entire length in the left-right direction, and the front vertical wall 21 is formed. The upper half 29 was formed to project forward in a cantilever shape. According to this, assuming that the upper half portion 29 of the front vertical wall 21 is not reinforced and supported in a backing shape, the entire upper half portion 29 can be configured to be easily elastically deformed downward. From the above, according to the present invention, the non-slip material 1 and the front vertical wall do not excessively increase the thickness of the non-slip material 1 and the thickness of the front vertical wall 21 located at the nose of the step plate 3. It is possible to impart a good shock absorbing action to the non-slip material 1 while making the 21 compact and thin. Further, by using the non-slip material 1 of the present invention, the recessed dimension of the mounting portion 4 of the step plate 3 can be reduced, so that the plate thickness dimension of the step plate 3 becomes excessively small by the amount provided with the mounting portion 4. Therefore, it is possible to prevent the step plate 3 from being inadvertently reduced in strength and damaged. The effect is that a riser plate is arranged below the mounting portion 4, and a groove is engraved on the lower surface of the step plate 3 to allow the riser plate to be inserted and mounted. It is particularly useful in the construction of wooden stairs where the thickness dimension of the board 3 is small.

In addition, in the non-slip material 1 according to the present invention, by providing the recessed portion 30, the front end surface of the lower half portion 28 that partitions the recessed portion 30 is set to the corner portion at the tip of the step plate 3 (the tip of the step plate 3). The recessed portion 30 can absorb the front-rear variation between the tip corner portion of the step plate 3 and the front end surface of the lower half portion 28 of the front vertical wall 21 by being positioned behind the portion). Therefore, according to the present invention, even if the mounting position of the non-slip material 1 mounted on each step plate 3 varies due to the processing tolerance of the mounting portion 4 and the dimensional tolerance of the non-slip material 1, this can be prevented. By making it inconspicuous, it is possible to prevent the design and appearance of the completed stairs from being impaired. If the recessed portion 30 is not provided and the mounting position varies as shown in FIGS. 6 (b) and 6 (c), a step is formed between the lower end portion of the front vertical wall 21 and the boundary of the mounting portion 4. When the step plate 3 is viewed from below, the steps may give a conspicuous and uneven impression, and the design and appearance may be impaired.

If the toes of a pedestrian come into contact with the protruding portion of the non-slip material 1 from the tip of the step plate 3 to the front, the pedestrian may stumble. Therefore, from the viewpoint of safety, the protruding dimension of the protruding portion is acceptable. It is desirable that it is relatively small. On the other hand, if the protruding dimension is too small, the non-slip material 1 is less likely to be deformed, and the impact absorbing action of the non-slip material 1 may be reduced. In the present invention, the overhanging dimension of the upper half 29 of the front vertical wall 21 which is not reinforced and supported in a backing shape by the amount provided with the recessed portion 30 (the upper half 29 from the lower half 28 of the front vertical wall 21). Since the overhanging dimension of the upper half 29 can be easily increased, the upper half 29 can be easily elastically deformed to improve the impact absorbing action, and the step of the upper half 29 is increased by the amount of the recessed portion 30. Since the dimension of protrusion of the plate 3 from the tip portion to the front can be reduced, the chance that the toes of the pedestrian come into contact with the upper half portion 29 can be reduced, and the safety can be improved. That is, in the present invention, by providing the recessed portion 30, the contradictory problems of improving safety and improving shock absorbing action can be solved at the same time. It should be noted that such an action effect is exhibited in the form of the non-slip material 1 (see FIGS. 1 and 11), which is scheduled to be mounted on the mounting portion 4 of the step plate 3 with the front vertical wall 21 protruding forward. It becomes remarkable.

The overhanging dimension (d1) of the front vertical wall 21 defined by the tip of the upper half 29 of the front vertical wall 21 and the lowermost end of the front vertical wall 21 shall be specified as 2 mm to 6 mm (2 mm or more, 6 mm or less). Is desirable. When the overhanging dimension (d1) of the front vertical wall 21 is within the above range, a good shock absorbing action can be imparted to the upper half 29 of the front vertical wall 21 while making the front vertical wall 21 compact. On the other hand, if the overhanging dimension (d1) is less than 2 mm, the overhanging width is small and the shock absorbing action may be reduced. As described above, the effect of absorbing the variation in the mounting position due to the provision of the recessed portion 30 is not exhibited well, which may give an uneven impression and deteriorate the design and appearance of the stairs. .. If the overhanging dimension (d1) exceeds 6 mm, the restoring force of the upper half portion 29 is reduced, so that the shock absorbing action may be poor. Depending on the mounting position on the mounting portion 4, it may cause a stumbling block and reduce safety.

Assuming that the cap member 11 has a first resin portion 25 having an engaging rail 22 forming a joint structure and a second resin portion 26 made of a resin softer than the first resin portion 25, at least in the front vertical direction. When the upper half portion 29 of the wall 21 is composed of the second resin portion 26, the recessed portion 30 is formed in the lower half portion 28 of the front vertical wall 21, and the upper half portion 29 is formed. A good shock absorbing action can be imparted.

The front vertical wall 21 of the cap member 11 has an upper half portion 29 formed in a semicircular arc shape toward the front and a recessed portion 30 formed in a quadrant arc shape toward the rear in a longitudinal side view. When composed of the lower half 28, a natural and gentle impression can be given to the non-slip material 1 and the stairs to which the non-slip material 1 is applied. Since the upper half 29 of the front vertical wall 21 can be projected larger than the tip of the step plate 3, the non-slip material 1 having a more excellent shock absorbing action can be obtained.

The front vertical wall 21 of the cap member 11 has an upper half portion 29 having an upper straight surface 40 extending in the vertical direction in a longitudinal side view, and a lower straight surface located rearward of the upper straight surface 40 and extending in the vertical direction. When formed in a stepped shape having a lower half portion 28 having 41, the upper half portion 29 is a straight surface to give a simple and sophisticated impression to the non-slip material 1 and the stairs to which the upper half portion 29 is applied. Can be done. In particular, if the tip surface of the front vertical wall 21 of the non-slip material 1 and the tip surface of the step plate 3 can be flush with each other, a more sophisticated impression can be given.

It is a longitudinal side view which shows the non-slip material of the stairs which concerns on Example 1 of this invention. It is a figure which shows the stairs to which the non-slip material of this invention was applied. It is an exploded sectional view of the non-slip material which concerns on Example 1 of this invention. It is an exploded perspective view of the non-slip material which concerns on Example 1 of this invention. It is a hexagonal view of the non-slip material which concerns on Example 1 of this invention. (A) to (c) are longitudinal side views for explaining a problem when the recessed portion is not formed. It is a longitudinal side view which shows the example of mounting on the mounting part of the non-slip material which concerns on Example 1 of this invention. It is a longitudinal side view which shows the non-slip material of the stairs which concerns on Example 2 of this invention. It is an exploded perspective view of the non-slip material which concerns on Example 2 of this invention. It is a hexagonal view of the non-slip material which concerns on Example 2 of this invention. It is a longitudinal side view which shows the non-slip material of the stairs which concerns on Example 3 of this invention. It is a longitudinal side view which shows the non-slip material of the stairs which concerns on Example 4 of this invention.

(Example 1) FIGS. 1 to 5 and 7 show Example 1 of a non-slip material for stairs according to the present invention. The front / rear, left / right, and up / down in the present invention follow the notations of the crossing arrows shown in FIGS. 1, 3, and 4, and the front / back / left / right / up / down in the vicinity of the crossing arrow. In FIG. 2, the stairs to which the non-slip material 1 is applied are a pair of left and right sasara girders 2.2 and a plurality of step plates 3 erected between these sasara girders 2 and 2 at predetermined height intervals. It is composed of and. As shown in FIGS. 1, 3, and 4, the step plate 3 is made of a plate material having a predetermined thickness dimension, and the corner portion located above the front side thereof is a mounting portion for mounting the non-slip material 1. 4 is notched and formed. The mounting portion 4 is a recess formed long in the width direction (left-right direction) of the step plate 3, and has a mounting surface 5 directed upward, a vertical wall surface 6 formed at the rear end portion and directed forward, and left and right. It has side wall surfaces 7.7 formed at both ends of the above and facing inward on the left and right (see FIG. 4).

The non-slip material 1 mounted on the mounting portion 4 is composed of a base member 10 and a cap member 11 that is engaged and mounted on the base member 10. The base member 10 is U-shaped in a longitudinal side view having a flat plate-shaped base main wall 12 received by the mounting surface 5 and a pair of front and rear locking walls 13 and 13 protruding upward from the front and rear ends of the base main wall 12. It is a left and right long metal molded product (strip material) formed in, and has an upper opening. As shown in FIGS. 3 and 4, a thick portion 15 is projected from the central portion of the upper surface of the base member 10 in the front-rear direction, and the screw 16 is aligned on the upper surface of the thick portion 15. Grooves 17 are engraved in the left-right direction. The screw 16 is a self-drilling screw. By screwing a plurality of screws 16 from above the thick portion 15 at equal intervals and fastening the base main wall 12 and the mounting surface 5, the base member 10 is attached to the mounting portion 4. It is fixed to. At the upper end of each locking wall 13, ribs 18 are projected inward over the entire length in the left-right direction.

The cap member 11 is a left-right long resin molded product having a cover wall 20 that covers the upper surface of the base main wall 12 and a front vertical wall 21 that covers the front surface of the base main wall 12. Engagement rails 22 and 22 that engage with the locking walls 13 and 13 of the base member 10 are projected at two front and rear positions on the lower surface of the cover wall 20. A rib 23 that is long in the left-right direction is projected outward from the upper end of each engagement rail 22.

The cap member 11 can be attached to the base member 10 by pressing it from above. Specifically, after aligning the cover wall 20 of the cap member 11 with respect to the base member 10 fixed to the mounting surface 5 by the screw 16 so as to cover the upper opening of the base member 10, the cap member 11 is attached. Press against the base member 10. As a result, the engaging rails 22 and 22 of the cap member 11 are elastically deformed so as to approach each other, and the engaging rails 22 and 22 are press-fitted along the inner surfaces of the locking walls 13 and 13 of the base member 10. be able to. In the state where the engaging rails 22 and 22 are press-fitted in this way, the ribs 18 of the locking walls 13 and 13 and the ribs 23 of the engaging rails 22 and 22 are unevenly engaged with each other, so that they cannot be accidentally removed. The cap member 11 can be fitted and mounted on the base member 10 as described above. In such a fitted and mounted state, the upper surface of the cap member 11 is flush with the upper surface of the step plate 3. The joining structure of the present invention is configured by the locking wall 13, the engaging rail 22, and the ribs 18 and 23 as described above. The downward protrusion dimension of the front vertical wall 21 from the cover wall 20 is set to be larger than that of the engagement rail 22, and the lower end surface of the front vertical wall 21 is the mounting surface 5 in the above-mentioned fitting and mounting state. It is adapted to cover the front surface of the locking wall 13 of the base member 10 in contact with the base member 10.

The cap member 11 is composed of a first resin portion 25 made of a hard resin having the engaging rail 22 and a second resin portion 26 made of a soft resin located above the first resin portion 25, and has a hardness of these. It is configured by integrally forming two different types of resins by two-color molding. As shown in FIGS. 1, 3 and 4, the first resin portion 25 located on the lower side includes the back surface portion of the cover wall 20, the engaging rail 22, and the rear portion 28 of the lower half portion 28 of the front vertical wall 21. It has a part. The second resin portion 26 located on the upper side includes a surface portion of the cover wall 20 and a front portion of the upper half portion 29 and the lower half portion 28 of the front vertical wall 21.

Then, in the present embodiment, the recessed portion 30 formed by recessing backward into the lower half portion 28 of the front vertical wall 21 is formed over the entire length in the left-right direction, and is formed above the front vertical wall 21. It should be noted that the half portion 29 is formed so as to be cantilevered toward the front, and the upper half portion 29 is configured to be elastically deformable toward the lower side. Specifically, as shown in FIG. 1, the lowermost end portion of the front vertical wall 21 is largely retracted toward the rear with respect to the frontmost end portion of the upper half portion 29 of the front vertical wall 21, and the front vertical wall 21 The upper half 29 is formed so as to project forward in a large cantilever shape, and the lower half 28 of the front vertical wall 21 is formed with a recess 30 that is recessed rearward. In this embodiment, the front vertical wall 21 of the cap member 11 is formed by bulging forward in a semicircular shape toward the front and a quadrant arc shape toward the rear in the upper half portion 29. It is composed of a lower half portion 28 having a recessed portion 30, and an upper half portion 29 formed by bulging in a semicircular shape is formed so as to project forward with respect to the lower half portion 28. Here, the overhanging dimension (d1: see FIG. 1) of the front vertical wall 21 defined by the tip of the upper half 29 of the front vertical wall 21 and the lowermost end of the front vertical wall 21 is defined as 2 mm to 6 mm and is concave. The recessed dimension of the entrance 30 (d2: see FIG. 1) is set to 2 mm to 3 mm (however, d1> d2). The front side of the upper half 29 and the lower half 28 of the front vertical wall 21 is composed of a soft second resin portion 26, and the inside of the front vertical wall 21 is composed of a hard first resin portion 25. ..

When the recessed portion 30 is formed in the lower half portion 28 of the front vertical wall 21 in this way, the upper half portion 29 of the front vertical wall 21 is not reinforced and supported in a lining shape, and the upper half portion 29 of the front vertical wall 21 is not reinforced and supported. The whole can be easily elastically deformed downward. As a result, when the front vertical wall 21 is impacted from above in combination with the fact that the upper half portion 29 is made of a soft resin, the upper half portion 29 is easily elastically deformed downward. Therefore, the front vertical wall 21 exhibits a good shock absorbing action.

Further, according to the non-slip material 1 of the first embodiment, the protrusion dimension of the upper half portion 29 from the protruding end portion of the step plate 3 to the front can be reduced by the amount provided with the recessed portion 30, so that the pedestrian can use the non-slip material 1. It is possible to improve safety by reducing the chance that the toes come into contact with the upper half 29. From the above, according to the non-slip material 1 of the first embodiment, the contradictory problems of improving the safety and improving the shock absorbing action can be solved at the same time. Since the upper half 29 of the front vertical wall 21 is formed to bulge forward in a semicircular shape toward the front in a longitudinal side view, a natural and gentle impression can be given to the stairs.

In addition, according to the non-slip material 1 according to the present embodiment, by providing the recessed portion 30, the front end surface of the lower half portion 28 that always partitions the recessed portion 30 is positioned behind the tip corner portion of the step plate 3. Therefore, the front-rear variation between the tip corner portion (protruding end portion) of the step plate 3 and the front end surface of the lower half portion 28 of the front vertical wall 21 can be absorbed by the recessed portion 30. Therefore, according to the present embodiment, even if the mounting position of the non-slip material 1 mounted on each step plate 3 varies, it is made inconspicuous and the design of the completed stairs is prevented from being impaired. be able to.

More specifically, in the non-slip material 1 according to the present embodiment, the boundary portion between the lower half portion 28 and the upper half portion 29 of the front vertical wall 21 coincides with the tip portion of the mounting portion 4, in other words, the upper half portion. Only 29 is designed with the goal of protruding from the step plate 3 (see FIG. 1). On the other hand, in general, due to the influence of the dimensional tolerance of the non-slip material 1 and the processing tolerance of the mounting portion 4, it is inevitable that the front-rear width of the non-slip material 1 and the mounting portion 4 will vary. ), The boundary portion is moved back and forth with respect to the protruding end portion of the mounting portion 4 due to the influence of the variation, and the lower end portion of the front vertical wall 21 and the boundary of the mounting portion 4 are formed. A step is generated between the stairs (see FIGS. 6 (b) and 6 (c)), and when the step plate 3 is viewed from below, the step gives a noticeably uneven impression, and the appearance and design of the stairs are poor. There is a risk of becoming. There are cases where the surface of the mounting surface 5 located at the tip of the step plate 3 can be seen (FIG. 6 (c)) and cases where the surface of the mounting surface 5 cannot be seen (FIGS. 6 (a) and 6 (b)). However, it may give an uneven impression and the appearance and design of the stairs may deteriorate. The same applies when the mounting position of the non-slip material 1 with respect to the mounting portion 4 varies depending on the skill level of the operator, and a step as shown in FIGS. 6 (b) and 6 (c) above occurs, resulting in an uneven impression. There is a risk that the appearance and design of the stairs will deteriorate. Even if the base member 10 is lifted due to uneven landing in the left-right direction (misalignment of the mounting position of the non-slip material 1 in the left-right direction) or poor screwing, and the mounting position of the non-slip material 1 varies, FIG. (B) A step as shown in (c) may be generated, giving an uneven impression, and the appearance and design of the stairs may be deteriorated. Such an inconvenience is particularly similar to the non-slip material 1 of the present embodiment, in which the base member 10 is fixed to the mounting portion 4 and then the cap member 11 having the front vertical wall 21 is mounted, in other words, The front vertical wall 21 is not provided on the base member 10 that determines the mounting position of the non-slip material 1, and this becomes remarkable in a form in which it is impossible to align the front vertical wall 21 during the fixing work of the base member 10. ..

On the other hand, in the non-slip material 1 of the present embodiment provided with the recessed portion 30, even if the mounting position of the non-slip material 1 is moved back and forth due to the influence of the above dimensional tolerance or the like, the recessed portion 30 may be within the recessed size range. For example, it is possible to reliably prevent the front end surface of the lower half portion 28 of the front vertical wall 21 from protruding from the protruding end portion of the step plate 3. Therefore, even if the mounting position of the non-slip material 1 varies due to a dimensional error or the like, it can be absorbed by the recessed portion 30 to make it inconspicuous, thereby giving an uneven impression or unifying the stairs. It is possible to prevent the property and design from being impaired. Even if the step plate 3 is warped, distorted, shrunk, or otherwise deformed due to aged deterioration, by providing the recessed portion 30 in advance, the front vertical wall 21 and the mounting portion 4 of the non-slip material 1 caused by the deformation can be connected to each other. There is also the advantage that the gaps between them can be made inconspicuous. From the above, the recessed portion 30 of the non-slip material 1 of the first embodiment exhibits a function as a joint for adjusting variations such as dimensional errors.

Although FIG. 1 shows an ideal mounting position of the non-slip material 1 according to the first embodiment, the mounting position of the non-slip material 1 according to the first embodiment with respect to the mounting portion 4 is limited to the position shown in FIG. Instead, for example, as shown in FIG. 7, the non-slip material 1 can be mounted so that the protruding end portion of the step plate 3 and the front surface of the lowermost end of the front vertical wall 21 coincide with each other.

(Example 2) FIGS. 8 to 10 show Example 2 of the non-slip material for stairs according to the present invention. In the non-slip material 1 of the second embodiment, the front vertical wall 21 of the cap member 11 has an upper half portion 29 having an upper straight surface 40 extending in the vertical direction in a longitudinal side view, and a rear side of the upper straight surface 40. It is formed in a stepped shape having a lower half portion 28 having a lower straight surface 41 that is positioned and extends in the vertical direction, and a recessed portion 30 is formed between the upper straight surface 40 and the lower straight surface 41. This is different from the first embodiment. Further, in the non-slip material 1 of the second embodiment, the upper straight surface 40 coincides with the tip of the mounting portion 4, in other words, the tip surface of the front vertical wall 21 of the non-slip material 1 and the tip of the step plate 3. It differs from the previous embodiment 1 in that it is designed with the goal of being flush with the surface. Since the other parts are the same as those in the first embodiment, the same members are designated by the same reference numerals and the description thereof will be omitted. The same applies to the following examples.

In the second embodiment, since the front vertical wall 21 of the cap member 11 is an upper straight surface 40 extending in the vertical direction, a simple and sophisticated impression can be given to the stairs. In particular, if the tip surface of the front vertical wall 21 of the non-slip material 1 and the tip surface of the step plate 3 can be flush with each other, a more sophisticated impression can be given to the stairs. Since the recessed portion 30 is formed in the lower half portion 28 of the front vertical wall 21, the front vertical wall 21 exerts a good shock absorbing action, and the non-slip material 1 mounted on each step plate 3 is attached. It is the same as the non-slip material 1 of the first embodiment in that even if the position is varied, it can be made inconspicuous and the design of the completed stairs can be prevented from being impaired.

(Example 3) FIG. 11 shows Example 3 of the non-slip material for stairs according to the present invention. In the non-slip material 1 of the third embodiment, the first resin portion 25 located on the lower side of the cap member 11 includes the back surface portion of the cover wall 20, the engaging rail 22, and the lower half portion 28 of the front vertical wall 21. The second resin portion 26 located on the upper side of the cap member 11 includes a surface portion of the cover wall 20 and an upper half portion 29 of the front vertical wall 21. Different from 1. Further, in the non-slip material 1 of the third embodiment, the upper half portion 29 and the lower half portion 28 of the front vertical wall 21 are colored with different colors, and the lower half portion 28 defining the recessed portion 30 in each step plate 3 is defined. The front end face of is made to appear as a straight line pattern extending in the left-right direction. According to this, since the straight line pattern can be visually recognized by a pedestrian climbing the stairs, it is possible to impart excellent decorativeness and design to the entire stairs. In addition, it is possible to give a more sophisticated and sharp impression to pedestrians.

(Example 4) FIG. 12 shows Example 4 of the non-slip material for stairs according to the present invention. In the non-slip material 1 of the fourth embodiment, the first resin portion 25 located on the lower side of the cap member 11 includes the back surface portion of the cover wall 20, the engaging rail 22, and the lower half portion 28 of the front vertical wall 21. The second resin portion 26 located on the upper side of the cap member 11 includes a surface portion of the cover wall 20 and an upper half portion 29 of the front vertical wall 21. Different from 2. Further, in the non-slip material 1 of the fourth embodiment, the upper half portion 29 and the lower half portion 28 of the front vertical wall 21 are colored with different colors, and the lower half portion 28 that defines the recessed portion 30 in each step plate 3 is defined. The front end face of is made to appear as a straight line pattern extending in the left-right direction.

In addition to the above embodiment, the joining structure for joining the base member 10 and the cap member 11 is not limited to the locking wall 13 and the engaging rail 22, and the point is that the cap member 11 floats with respect to the base member 10. It suffices if it can be fixed impossible. The method of fixing the base member 10 to the mounting portion 4 is not limited to the form of fixing with the screw 16. A non-slip groove can be engraved on the upper surface of the cap member 11.

1 Non-slip material 3 Step plate 4 Mounting part 5 Mounting surface 10 Base member 11 Cap member 12 Base main wall 20 Cover wall 21 Front vertical wall 22 Engagement rail 25 First resin part 26 Second resin part 28 Lower half of front vertical wall Part 29 Upper half of front vertical wall 30 Recessed part 40 Upper straight surface 41 Lower straight surface

Claims (5)

A non-slip material (1) to be mounted on a mounting portion (4) notched in a corner portion located above the front side of the step plate (3).
A base member (10) having a base main wall (12) that is received by the upward mounting surface (5) of the mounting portion (4) and fixed to the mounting surface (5), and a long left and right base member (10).
It consists of left and right long resin cap members (11) that are engaged and mounted on the base member (10) via a joint structure.
The cap member (11) has a cover wall (20) that covers the upper surface of the base main wall (12) and a front vertical wall (21) that covers the front surface of the base main wall (12).
A recessed portion (30) formed by recessing backward into the lower half portion (28) of the front vertical wall (21) is formed over the entire length in the left-right direction, and the front vertical wall (21). The upper half (29) is cantilevered toward the front, and the upper half (29) of the front vertical wall (21) is elastically deformable downward .
When the cap member (11) is engaged and mounted on the base member (10) via the joint structure, the height position of the lower end of the lower half (28) of the front vertical wall (21) of the cap member (11) is set. It coincides with the height position of the lower end of the base main wall (12) of the base member (10), and when the cap member (11) is engaged and mounted on the base member (10) via the joint structure, the front vertical A non-slip material for stairs, characterized in that the upper half (29) of the wall (21) is configured to be located above the lower end of the base main wall (12). The overhanging dimension (d1) of the front vertical wall (21) defined by the tip of the upper half (29) of the front vertical wall (21) and the lowermost end of the front vertical wall (21) is defined as 2 mm to 6 mm. The non-slip material for stairs according to claim 1. The cap member (11) has a first resin portion (25) having an engaging rail (22) forming a joint structure, and a second resin portion (26) made of a resin softer than the first resin portion (25). ) And
The non-slip material for stairs according to claim 1 or 2, wherein at least the upper half (29) of the front vertical wall (21) is composed of the second resin portion (26). The front vertical wall (21) of the cap member (11) is formed to bulge forward in a semicircular shape toward the front and to be depressed in a quadrant arc shape toward the rear. The non-slip material for stairs according to any one of claims 1 to 3, which is composed of a lower half portion (28) having a recessed portion (30). The front vertical wall (21) of the cap member (11) has an upper half portion (29) having an upper straight surface (40) extending in the vertical direction in a longitudinal side view, and a rear side of the upper straight surface (40). It is formed in a stepped shape having a lower half portion (28) having a lower straight surface (41) that is positioned and extends in the vertical direction.
The non-slip material for stairs according to any one of claims 1 to 3, wherein a recessed portion (30) is formed between the upper straight surface (40) and the lower straight surface (41).

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