JPH10102746A - Floor member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high antislipping effect molding a grating with a plural number of metal bearing bars arranged in a metal frame member and integrally and projectively providing a projected line on an upper surface of either of the bearing bar and the frame member. SOLUTION: A plural number of stainless steel made bearing bars 2 are arranged in parallel in a frame member of a grating, and a pair of projected lines 3 is integrally and projectively provided on an upper surface of the bearing bar 2. Thereafter, a groove part 4 is provided between these projected lines 3, width P of the groove part 4 is set less than 10mm, and width W of the projected line 3 and the width P of the groove part 4 are set as W/P=1.0. Thereafter, a pair of the narrow projected lines 3 is provided on the upper surface of this bearing bar 2 and width of the groove part 4 is narrow, and therefore, a water screen is removed at an edge part of the projected line 3, a rubber bottom S makes directly contact with the edge part and large frictional force is provided. Consequently, it is possible to prevent sliding of the bearing bar 2 in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor member such as a grating, a non-slip member for a stair, a non-slip mat, and a non-slip floor material. More specifically, the present invention relates to a floor member which has a high anti-slip effect and is easy to manufacture.

[0002]

2. Description of the Related Art Conventionally, various attempts have been made to increase the non-slip effect of floor members such as gratings, non-slip members for stairs, and non-slip mats. In particular, in the grating, a plurality of metal bearing bars are arranged substantially in parallel, and since the upper surfaces of these bearing bars are smooth metal surfaces, they tend to slide in the longitudinal direction of the bearing bars in rainy weather or the like.

In order to improve such disadvantages, various types of gratings having irregularities formed on the upper surfaces of these bearing bars have been developed. However, recently, many of these gratings are made of stainless steel, and since such stainless steel is hard and difficult to plastically process, it is relatively difficult to process such irregularities.

For example, as a method of forming irregularities on the upper surfaces of these stainless steel bearing bars, there is a method of forming the irregularities by knurling the upper surfaces of these bearing bars. However, as described above, since the stainless steel is hard, the flow of material during knurling is poor, the edge of the formed knurled projection is rounded, and the anti-slip effect is low, and There is also a problem that the roll for performing the knurling has a large wear. Furthermore, in this knurling process, the height of the formed unevenness is low, so that the inside of the recess is easily filled with mud or the like to cause so-called clogging, and the unevenness is crushed by abrasion, and the effect of preventing slippage is reduced. .

[0005] In some cases, a metal material or a ceramic material is sprayed on the upper surfaces of these bearing bars, and the upper surfaces of the bearing bars are formed rough. However, since the height of the unevenness due to the thermal spraying is low, there is a problem similar to that in the case of the above-described knurling, and a problem such that the thermal spray coating peels off due to impact, long-term use, and the like.

[0006] These slip prevention means by roughening by knurling and thermal spraying basically depend on mechanical frictional force caused by the shoe sole biting into these irregularities. Recently, however, most shoe soles are rubber soles, which have no water permeability. For this reason, in the case of rainy weather or the like, a water film is formed between the upper surface of the bearing bar and the rubber bottom, and this water film acts as a lubricating film, so that the bearing bar easily slides in the longitudinal direction.

In order to prevent the formation of such a water film, the load per unit area between the upper surface of the bearing bar and the rubber bottom, that is, the load pressure, is increased. It is conceivable to eliminate the water film between them and bring the rubber bottom into direct contact. However, since the weight of a human is not so heavy, it is difficult to generate such a high load pressure. In order to generate such a high contact pressure, it is conceivable to form a sharp projection on the upper surface of the bearing bar, locally generate a high contact pressure, and make the sharp projection dig deeper into the rubber bottom. Can be However, in this case, the rubber bottom may be hooked on the projection.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a floor member which has a high anti-slip effect and is easy to process and manufacture.

[0009]

According to the first aspect of the present invention, a plurality of ridges are provided on the upper surface, and a groove is formed between the ridges. When the width of the groove is P, the width P of the groove is 10 mm or less and W / P ≦ 1.0.

[0010] Due to such characteristics, a large pressing load pressure is locally generated between the edge of the ridge and the rubber bottom of the shoe, the water film in this portion is eliminated, and direct contact with the rubber bottom occurs. A large friction force can be obtained, and a high anti-slip effect can be achieved. In addition, since this is merely formed with a ridge having a simple shape and no sharp projection is formed, the shoe sole is not caught and the manufacture is easy.

Further, according to the present invention as set forth in claim 2, the ridge has a substantially rectangular cross section. Therefore,
It has a great anti-slip effect and is easy to manufacture. Further, according to the present invention as set forth in claim 3, the floor member is a grating in which a plurality of metal bearing bars are arranged in a metal frame member, and the protrusion is the bearing bar or the bearing bar. Are integrally protruded from at least one of the upper surfaces of the frame members. Therefore, the anti-slip effect is large and the manufacture is easy.

Further, in the present invention according to claim 4, the ridges are a pair of ridges protruding from both edges of each of the bearing bars. Therefore, the anti-slip effect is large and the manufacture is easy.

According to a fifth aspect of the present invention, a plurality of recesses are formed in the ridge. Therefore, the effect of preventing slippage is further enhanced, and the manufacture is easy.

According to a sixth aspect of the present invention, a luminous material is applied to the bottom of the groove.
Therefore, the effect of non-slip is large, and it is easy to manufacture, and the luminous material emits light at night or the like, the position of the floor member can be easily visually recognized, and the luminous material emits light. , Evacuation routes and the like can be displayed. Further, since this phosphorescent material is attached to the bottom of the groove, there is no occurrence of abrasion, peeling or the like.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention, in which the floor member is a stainless steel lattice-shaped groove cover or grating.

In the figure, reference numeral 1 denotes a grating frame member, in which a plurality of bearing bars 2 are arranged in parallel with each other. Each of the frame member 1 and the bearing bar 2 is formed of stainless steel. Each of these bearing bars 2 is obtained by cutting a strip into a predetermined length, and its cross section has a vertically elongated rectangular shape.

A pair of ridges 3 are integrally formed on the upper surface of the bearing bar 2 along both edges of the upper surface, and a groove 4 is formed between the ridges 3. . The width P of the groove 4 is set to 10 mm or less, and the width W of the ridge 3 and the width P of the groove 4 are set to W / P ≦ 1.0. In this embodiment, the ridge 3 has a rectangular cross section and a width W of 1.5 mm. The width P of the groove 4 is 6 mm, and the height of the ridge 3 or the depth H of the groove 4 is 2.
0 mm.

The above-described grating has a high anti-slipping effect and is easy to manufacture, and its operation will be described below. Such grating has a large slip-preventing effect in the direction orthogonal to the bearing bar 2. However, as described above, the effect of preventing slippage in the longitudinal direction of these bearing bars 2 is small,
In particular, when the upper surface of the bearing bar 2 is wet, such as in rainy weather, it is easy to slip on shoes with a rubber sole having no water permeability.

The reason why the bearing bar 2 slides easily in the longitudinal direction when wet as described above is that a water film is formed between the bearing bar 2 and the rubber sole, and the water film is formed by a lubricating film. The friction coefficient itself between the rubber bottom and the stainless steel is relatively large, and has a sufficient slip-preventing effect. Therefore, even when wet, a sufficient frictional force can be obtained by preventing the formation of the water film as described above.

In order to prevent the formation of such a water film, the contact pressure between the upper surface of the bearing bar 2 and the rubber bottom is increased, and the water film interposed therebetween is eliminated by this pressure. The rubber bottom may be brought into direct contact with the upper surface of 2. However, since the human weight or load is not so large, these bearing bars 2
Even if the area of the upper surface is reduced, that is, the thickness of the bearing bar 2 is reduced, a contact pressure sufficient to eliminate the water film cannot be obtained. Further, since these bearing bars 2 support a load of a person or a vehicle or the like riding on the grating, the bearing bars 2 cannot be made too thin. Further, even if knurls or other irregularities are formed on the upper surface of the bearing bar 2, the rubber bottom cuts into these irregularities to provide a slip-preventing effect, but the formation of a water film cannot be reliably prevented.

In the embodiment as described above, a pair of narrow ridges 3 are formed on the upper surface of the bearing bar 2 and the width of the groove 4 between them is also small.
A large contact pressure is obtained locally at the edge of. As a result, a water film is eliminated at the edges of the ridges 3, and the rubber bottom comes into direct contact with the edges, and a large frictional force is obtained. Therefore, even if these bearing bars 2 are wet, they are prevented from slipping in the longitudinal direction of the bearing bars 2.

Such an operation will be described with reference to FIG. The large contact pressure at the edge of the ridge 3 as described above is caused by the mode of local deformation of the rubber sole S of the shoe. That is, the rubber bottom S is locally elastically deformable, but has a sufficient thickness or is reinforced so as to obtain a certain degree of rigidity as a whole.
Therefore, the load per unit area acting on the ridge 3, that is, the load pressure, is substantially equal to the load pressure acting on the groove 4. For this reason, the portion near the lower surface of the rubber bottom S that hits the portion of the ridge 3 is recessed upward and is compressed and deformed, while the same load pressure is applied to the portion of the rubber bottom S corresponding to the groove 4 as described above. Therefore, the portion near the lower surface of the rubber bottom S in this portion swells downward and swells.

At the boundary where the upward compression deformation and the downward swelling deformation occur, that is, at the portion of the rubber bottom S corresponding to the edge of the ridge 3, the resultant force of these deformation loads is oblique. A load is applied, and the portion near the lower surface of the rubber bottom S is obliquely and strongly pressed by the edge of the ridge 3 and bites into this edge. Such a phenomenon occurs when a flat rubber plate is placed on a protrusion with a sharp edge, and when an average pressure is applied, a thin line is formed on this rubber plate corresponding to the edge of the protrusion. This is the same as the phenomenon in which indentations occur.

Therefore, a large contact pressure is locally obtained at the edge portion of the ridge 3, the water film interposed therebetween is eliminated, and direct contact with the rubber bottom S is achieved. You. The frictional force generated by the direct contact makes it possible to achieve a sufficient non-slip effect even in the longitudinal direction of the bearing bar 2.

In order to maximize the local contact pressure at the edge of the ridge 3 as described above, the compressive deformation load of the portion of the ridge 3 and the downward bulging of the groove 4 are required. What is necessary is just to make deformation load equal. In this case, the portion near the lower surface of the rubber bottom S corresponding to the edge of the ridge 3 is pressed against the edge at an angle of 45 ° with respect to the vertical direction. The pressure is at a maximum and the maximum frictional force is obtained. Then, in order to generate the maximum local pressing load pressure on the edge, the width W of the ridge 3 and the width P of the groove 4 formed between the ridges 3 may be made equal.
Therefore, in this case, if W / P is set to 1.0, the maximum slip prevention effect can be obtained.

However, in the actual rubber bottom S, the groove 4
Is slightly deformed as a whole, and the load pressure acting on the portion corresponding to the groove 4 is reduced. Therefore, the area where the maximum local pressing load pressure is generated between the edge of the ridge 3 and the rubber bottom S has a W / P of 1.0 or less.

If the width P of the groove 4 is large, the rubber bottom S is curved and deformed as a whole at this portion, and the load pressure at the portion of the rubber bottom S corresponding to the groove 4 is reduced. Since the lower surface of the rubber bottom corresponding to the groove portion 4 gently swells and deforms, the local pressing load pressure at the edge of the ridge 3 as described above is greatly reduced, and it is sufficient to eliminate the water film. No pressure can be generated.

According to the experience of the present inventors and the results of experiments, conventionally, in the grating as in this embodiment, each of the bearing bars 2 has a small thickness even among shoes that are commercially available and have a thin bottom. Is not felt on the sole, that is, the sole where the sole between the bearing bars 2 is deformed to such an extent that the sole feels on the sole is that the distance between the bearing bars 2 is about 10 mm. Is the case.
Therefore, if the width P of the groove 4 is set to 10 mm or less, even if the shoe has a thin bottom, the rubber sole S is substantially deformed as a whole at the groove 4. Can be prevented.

Accordingly, as described above, a pair of ridges 3 and a groove 4 are formed between the upper surface of the bearing bar 2 and the width W of the ridge 3 and the width P of the groove 4 are set to W / P ≦ W / P. 1.
If it is set to 0 and the width P of the groove 4 is set to 10 mm or less, the maximum pressing load pressure is locally generated at the edges of the ridges 3 and the water film therebetween is surely eliminated. ,
High friction force and anti-slip effect can be achieved.

Further, in such a configuration, since the shapes of the ridges 3 and the grooves 4 are simple, it is simple and efficient by roll-forming a short surface of a band material for the bearing bar 2 having a rectangular cross section. The ridges 3 and the grooves 4 can be formed on the substrate, and the production is easy.

Further, since the shapes of the ridges 3 and the grooves 4 are simple as described above, the flow of material when forming them is good. Therefore, even when the bearing bar 2 is formed of a material having low workability such as stainless steel, the flow of the material is good, and the edge of the ridge 3 is not rounded. The local pressing load pressure with the rubber bottom in the portion can be further increased, and a higher anti-slip effect can be exhibited.

Further, since the present invention obtains a high anti-slip effect by the local pressing load pressure generated at the edge of the ridge, the cross-sectional shape of the ridge does not need to be sharp. However, there is no possibility that the soles are caught on these ridges 3.

The ridges 3 as described above may be formed on the upper surface of the grating frame member 1. With such a configuration, a greater anti-slipping effect can be obtained.
In addition, this grating is, for example, U-shaped groove cover,
If the plane shape is an elongated shape, and the frame member 1 is long and the bearing bar 2 is short, it is easy to slide along the long frame member 1, so that the above-mentioned ridge 3 is formed only on the frame member 1. May be.

The present invention is not limited to the first embodiment. For example, FIG. 4 shows a second embodiment of the present invention. In this example, the ridge 3a has a mountain shape, and the local pressing load pressure at the top, that is, the edge, is increased.

FIG. 5 shows a third embodiment. This is an embodiment suitable for a case where the thickness of the bearing bar 2 is large, in which three ridges 3 are formed and two grooves 4 are formed therebetween.

FIG. 6 shows a fourth embodiment of the present invention. In this embodiment, when a cross section having an I-shaped cross section is used as the bearing bar 2a, a pair of ridges 3 are formed on the upper surface thereof.
This is a case where the groove 4 is formed between them.

FIG. 7 shows a fifth embodiment of the present invention. In the case where a cross section of an I-shape or the like is used as the bearing bar 2b, four ridges 3 are formed on the upper surface thereof.
This is a case where three grooves 4 are formed between them.

FIGS. 8 to 11 show a sixth embodiment of the present invention.
An embodiment will be described. In this embodiment, a plurality of recesses 5 are formed at predetermined intervals in the above-mentioned ridge 3, and the side shape of the ridge 3 is formed in a tooth shape. Since the ridge 3 has a tooth shape, in addition to the frictional force at the edge of the ridge 3 as described above, slip is prevented by the rubber bottom biting into the tooth-shaped ridge 3. The effect of can be obtained.

After forming the ridges 3 by a roll in the same manner as in the first embodiment, a plurality of recesses 5 are formed in the ridges by a gear-shaped forming roll. It is manufactured by doing.

In the case of this embodiment, drainage of rainwater in the groove 4 can be promoted by the recess 5, and from this point, as shown in FIG. It is preferable that the step D between the bottom surface of the base 4 and the bottom of the concave portion 5 is low, and it is preferable that the step D be absent, as shown in FIG.

Further, in the case of this embodiment, as shown in FIG.
A substantially trapezoidal ridge 8 at the center, and teeth 7 at both sides.
When the concave portion 5 is formed, the edge portion 10 may be protruded from the outer edge of the ridge 3 so as to further increase the local pressing load pressure in this portion. .

As shown in FIG. 11, the forming roll 6 has a ridge 9 on both sides and a tooth 7 on the center.
When the concave portions 5 are formed, the edge portion 10 may be protruded from the inner edge of the ridge 3 to further increase the local pressing load pressure in this portion.

As in the seventh embodiment shown in FIG. 12, a rectangular recess 5a may be formed in the ridge 3, and the side of the ridge 3 may be formed in a tooth shape. FIG. 13 shows an eighth embodiment of the present invention. In this embodiment, the phosphorescent material 12 is applied to the bottom of the groove 4 of the bearing bar 2 of the first embodiment. In this case, the upper surface of the phosphorescent material 12 is of course lower than the upper surface of the ridge 3.

In this case, the effect of preventing slippage is large as in the first embodiment, and the position of the grating can be visually recognized by the light emitted from the luminous material 12 at night or the like. . Therefore, if such gratings are used for the gutter cover of the road, the walking part, the cover of the cable pit, etc., the position where these gratings are laid at night or during a power outage can be visually recognized and used as a taxiway or evacuation route. It is possible to do.

Further, since the above-mentioned light-storing material 12 is attached to the bottom surface of the groove 4, the light-storing material 12 is prevented from being worn or peeled even when walking on the bearing bar 2. High durability.

FIG. 14 shows a ninth embodiment.
This is obtained by depositing a phosphorescent material 12 on the bottom of the groove 4 of the sixth embodiment shown in FIG. 8 described above, and its operation and effect are the same as those of the sixth embodiment and the eighth embodiment. Is the same as In this embodiment, the ridge 3
Since the concave portion 5 is formed in the groove 4, the drainage of rainwater in the groove portion 4 is good, and the accumulation of mud or the like on the phosphorescent material 12 is prevented.

The present invention is not limited to the above-described grating, but can be applied to other non-slip floor members. For example, FIG. 15 shows a tenth embodiment in which the present invention is applied to a non-slip member 22 embedded in an edge of a staircase. The non-slip member 22 includes at least a pair of ridges 3 and a groove 4 formed between the ridges 3. In this embodiment, the groove 4
The light-storing material 12 is attached to the bottom of the stairs, and the light emitted from the light-storing material 12 at night or the like allows the edge of the stairs to be visually recognized, so that the safety is high.

FIG. 16 shows an eleventh embodiment in which the present invention is applied to a non-slip floor member 32 such as a non-slip mat. In this embodiment, a plurality of ridges 3 are formed on the upper surface of a floor member 32 and grooves 4 are formed between the ridges 3, and the phosphorescent material 12 is applied to the bottoms of the grooves 4.

This material can exhibit a high non-slip effect as a non-slip floor member,
The position of the floor member 32 can be visually recognized by the light radiated from the luminous material 12 at night or during a power outage or the like. By laying such a floor member 32, a taxiway and an evacuation route are formed. It is possible.

[0050]

As described above, according to the present invention, it is possible to maximize the local pressing load pressure between the ridge and the rubber bottom at the edge of the ridge. A high frictional force can be generated by eliminating the formed water film, and a high anti-slip effect can be exhibited. Further, according to the present invention, it is only necessary to form simple ridges and grooves, and even if a stainless steel material having poor workability is used, it can be manufactured easily and inexpensively.

[Brief description of the drawings]

FIG. 1 is a plan view of a grating according to a first embodiment.

FIG. 2 is a perspective view of a part of the grating bearing bar of the first embodiment.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a sectional view of a bearing bar according to a second embodiment.

FIG. 5 is a sectional view of a bearing bar according to a third embodiment.

FIG. 6 is a sectional view of a bearing bar according to a fourth embodiment.

FIG. 7 is a sectional view of a bearing bar according to a fifth embodiment.

FIG. 8 is a perspective view of a part of a bare link bar according to a sixth embodiment.

FIG. 9 is a sectional view taken along lines 9-9 in FIG. 8;

FIG. 10 is a cross-sectional view illustrating a method of processing a bearing bar.

FIG. 11 is a cross-sectional view illustrating a method of processing a bearing bar.

FIG. 12 is a perspective view of a part of a bearing bar according to a seventh embodiment.

FIG. 13 is a perspective view of a part of a bearing bar according to an eighth embodiment.

FIG. 14 is a perspective view of a part of a bearing bar according to a ninth embodiment;

FIG. 15 is a perspective view of a non-slip member of a staircase according to a tenth embodiment.

FIG. 16 is a perspective view of a non-slip floor member according to an eleventh embodiment.

[Explanation of symbols]

 2, 2a, 2b Bearing bar 3, 3a Ridge 4 Groove 5, 5a Concave 12 Luminescent material

Claims (6)

[Claims] 1. A plurality of ridges are projected on an upper surface and a groove is formed between the ridges. When the width of the ridge is W and the width of the groove is P, the width of the groove is 10m width P
m or less, and W / P ≦ 1.0. 2. The floor member according to claim 1, wherein the ridge has a substantially rectangular cross section. 3. The floor member is a grating in which a plurality of metal bearing bars are arranged in a metal frame member, and the ridge is at least one of the bearing bar and the frame member. 2. The floor member according to claim 1, wherein the member is integrally protruded from an upper surface of the floor. 4. The floor member according to claim 3, wherein said ridges are a pair of ridges protruding from both edges of each of said bearing bars. 5. The floor member according to claim 1, wherein a plurality of recesses are formed in said ridge. 6. The floor member according to claim 1, wherein a light-storing material is applied to a bottom of said groove.