JP4951412B2 - Treadboard and treadboard manufacturing method - Google Patents

Description

  The present invention relates to a tread board and a tread board manufacturing method, and more particularly to a tread board in which a non-slip member is fixed to a tread base material and a tread board manufacturing method in which a non-slip member is fixed to the tread base material.

The above-mentioned step board is used, for example, for a step portion of a staircase, a stair landing, a lift of a front door, etc., and in such a construction place, in particular, a step board provided with various anti-slip functions from the viewpoint of safety. Has been proposed.
For example, there is one in which a plurality of anti-slip grooves are formed on the upper surface of a tread base material by cutting or the like.
However, in particular, treads used indoors often form a protective layer on natural wood or plywood from the viewpoint of design and the like, and a decorative sheet is affixed. In addition, when the anti-slip groove is formed, a protective layer is formed after the anti-slip groove is formed, or a decorative sheet is attached, so that the friction coefficient is lowered and the anti-slip property is increased to some extent. It is necessary to make the groove of the width and depth. Therefore, there has been a problem that the feeling of the soles when stepping on becomes worse.

In addition, in order to provide the anti-slip function to the above-described tread, a non-slip member such as a resin or rubber having a high friction coefficient is pasted on the upper surface of the tread base material, or slips into a fixed groove formed by cutting. The thing which fixed the stop member is known.
Such an anti-slip member is easily peeled off simply by being attached to the upper surface of the tread base material, and the toes may be caught and scooped.

In the following Patent Document 1, a non-slip structure of a stair tread for solving the above-described problem is proposed.
The footboard proposed in Patent Document 1 is provided with a mounting groove having a substantially T-shaped cross section in the entire longitudinal direction on the upper surface of a footboard having a decorative material adhered to the surface of a plywood substrate. The anti-slip member is attached to the attachment groove.
The anti-slip member is made of an elastic body and is formed in a T shape in accordance with the shape of the mounting groove. In the mounted state, the anti-slip member is provided between the back surface of the T-shaped lateral piece and the mounting groove. In this structure, a slight gap is formed. The anti-slip member is attached and formed so that the surface thereof is flush with or below the upper surface of the tread.
With such a configuration, in this thing, since the anti-slip member does not protrude from the tread surface, the foot does not get caught and crawls, and when the anti-slip member is pressed on the sole, It is said that when the anti-slip member sinks due to the slight gap, the sole also sinks and the slip is surely prevented.
Japanese Patent Laid-Open No. 11-13240 (see FIG. 1)

However, in the tread proposed in Patent Document 1, the mounting groove is formed by drilling or the like, so that the corner (protruding corner) between the tread surface and the mounting groove has an angular shape, When an anti-slip member made of an elastic body as described above is attached, the anti-slip member will be elastically deformed and settling when stepped on the sole, but this will cause the corners to abut the sole and feel There was a problem that it was not smooth.
In addition, since the non-slip member made of an elastic body settles in this way, it is necessary to perform processing such as polishing or forming a protective layer on the cutting surface of the mounting groove formed by cutting, and man-hours are reduced. I need a lot.

  Furthermore, when a resin decorative sheet or the like is pasted on the surface of the tread board, if the mounting groove is formed by cutting after the decorative sheet is pasted, the edge of the decorative sheet at the periphery of the mounting groove is broken, resulting in poor design. . Therefore, it is necessary to stick a decorative sheet after forming the mounting groove. In this case, there is a problem in that workability is poor because it is necessary to attach a decorative sheet so as not to create a gap in the mounting groove.

  The present invention has been proposed in order to solve the above-described problems, and the object thereof is to provide a tread that makes the sole feel smooth when stepped on with a simple configuration, and such a tread can be easily manufactured. It is in providing the manufacturing method of a tread.

To achieve the above object, step board according to claim 1 according to the present invention is a step board which is fixed a stop member sliding on treadle base, the upper surface of the step board substrate, concave in which the opening edge and the convex surface A groove is formed under pressure, and a non- slip member is embedded and fixed in the concave groove so that the upper surface does not protrude from the concave groove , and the convex curved surface of the opening edge and the A narrow groove is formed on the upper surface by the side surface of the anti-slip member .
In order to achieve the above object, a tread according to claim 2 of the present invention is a tread having a non-slip member fixed to a tread base, and an opening edge is formed as a convex curved surface on the top of the tread base. The groove is formed by pressurizing, and a non-slip member is fixed in the groove, and the anti-slip member has a top side smaller than a bottom side when viewed in cross section, and It is formed in a substantially trapezoidal shape having an inclined side, and the bottom surface of the anti-slip member is formed to be approximately the same size as the bottom surface of the groove.

In Claim 3 , in Claim 2 , the said anti-slip | skid member is embed | buried in the said groove groove so that the upper surface may not protrude from the said groove groove .
In Claim 4, in any one of Claims 1 thru | or 3, the fixed convex part is protrudingly provided in the lower surface of the said non-slip | skid member along the longitudinal direction, and the bottom face of the said groove Further, a locking recess for locking and fixing the fixing projection is further formed.

In order to achieve the above object, a method for manufacturing a tread according to claim 5 according to the present invention includes a step of pressing a pressing die onto an upper surface of a tread base material to form a groove with an opening edge as a convex curved surface. Then, an anti-slip member is buried and fixed in the groove so that the upper surface does not protrude from the groove , and the convex curved surface of the opening edge and the side surface of the anti-slip member A narrow groove is formed on the upper surface by the above.
In order to achieve the above object, a method for manufacturing a tread according to claim 6 according to the present invention includes a step of pressing a pressing die onto an upper surface of a tread base material to form an opening edge as a convex curved surface. Then, the groove is formed in a substantially trapezoidal shape having an upper side smaller than the lower side and an inclined side when viewed in cross section, and the lower surface is substantially the same as the bottom surface of the groove. A non-slip member formed in the same size is buried and fixed.
In Claim 7 , in Claim 5 or 6 , the said tread base material has a decorative sheet previously stuck.

According to the tread of any one of claims 1 to 4, a structure in which a concave groove having an opening edge as a curved surface is press-formed on the upper surface of the tread base material, and a non-slip member is fixed in the concave groove. Therefore, manufacturing can be performed easily and easily. That is, since the concave groove for attaching the anti-slip member is formed under pressure, it is easier than the conventional groove formation by cutting, and the processing of the cutting surface is not necessary. As a result, the cost is low.
Further, by forming the groove groove by press forming, the opening edge of the groove groove is naturally rounded compared to the corner of the groove formed by cutting or the like, so that the elastic body When the non-slip member made of is fixed, the slipperiness of the anti-slip member when it is stepped on also makes the feel smooth even when the sole touches the corner (opening edge).

In the first and third aspects, the anti-slip member is buried in the groove so that its upper surface does not protrude from the groove, so that the foot is not caught and it is possible to prevent the plowing.
Further, since the anti-slip member does not protrude, it does not get in the way during construction or transportation, and the workability is good, and the anti-slip member can be prevented from being damaged. Furthermore, it has a clean appearance and good design.

According to claim 2, the anti-slip member, when viewed in cross section, smaller than its upper side lower side, and formed in a substantially trapezoidal shape having inclined side edges, the lower surface of該滑Ri stop member, said concave Since the groove is formed in substantially the same size as the bottom surface of the groove, a substantially V-shaped groove is formed along the longitudinal direction between the curved surface of the opening edge of the groove and the upper end edge of the non-slip member. . Due to the formation of this groove, the foot sole bites into the groove when stepped on, thereby providing a further anti-slip function and improving the anti-slip property.

According to a fourth aspect of the present invention, the anti-slip member is further provided with a protruding protrusion along the longitudinal direction, and a locking recess for locking and fixing the fixing protrusion is further formed on the bottom surface of the groove. Therefore, the fixing property of the anti-slip member is further improved and the tread has excellent durability.
Further, as described above, since the concave groove is formed by pressurization, the lower and surroundings of the concave groove are higher in density than other portions of the tread base material. Even when the locking recess is formed, the density of the protruding corner between the bottom surface of the groove and the locking recess is high, damage and the like can be prevented, and the anti-slip member can be stably fixed.

Moreover, according to the manufacturing method of the tread according to claims 5 to 7 , since the press mold is pressed on the upper surface of the tread base material, the groove groove having the opening edge as a curved surface is press-formed. The processing is easier than in the case of forming the groove with conventional cutting or the like. In particular, it can be easily processed even when the groove is formed only in the middle along the longitudinal direction of the tread. Further, no cutting waste or the like is generated, and the manufacturing process is simplified.

In addition, when the groove is formed by cutting as in the prior art, an angular corner (protruding corner) is formed, and there is a case where the processing needs to be performed or the corner is damaged. In the present invention, since the groove groove is formed by pressurization, the corner portion has a naturally rounded shape, and the necessity for the treatment and the risk of damage are reduced.
Furthermore, since the anti-slip member is buried and fixed in the groove formed by pressurization, the anti-slip member does not protrude from the surface of the tread, and it is an obstacle during the manufacturing process, transportation, and construction. In addition, the workability is good and the anti-slip member can be prevented from being damaged.

In claim 7 , since the decorative sheet is attached to the tread base material in advance, in addition to the above-described effect, when the groove is formed by conventional cutting, as described above. In addition, it is necessary to stick a decorative sheet after forming the groove, and it is not easy to stick the decorative sheet in the groove without gaps, and the workability of the sticking process is poor. It was. On the other hand, according to the present invention, it is possible to easily form the grooved groove by pressurization even when the decorative sheet is previously attached. That is, a decorative sheet made of a synthetic resin material or the like can easily form a groove on the upper surface of the tread base material by pressing a press die from above the decorative sheet without being broken even by pressurization.
In addition, when the groove is formed by cutting after the decorative sheet is attached, the decorative sheet end near the opening edge of the groove is broken and the design is deteriorated. Since the groove is formed, the groove can be processed after the decorative sheet is pasted, and a tread having a good design can be easily manufactured.

The best mode for carrying out the present invention will be described below with reference to the drawings.
1A and 1B show a tread according to the first embodiment, wherein FIG. 1A is a schematic partial sectional view taken along line XX in FIG. 1B, FIG. 1B is a schematic plan view of the tread, FIG. (C) is a general | schematic fragmentary sectional view for demonstrating the manufacturing method of the tread which concerns on the same embodiment all.

The step board 10 has a structure in which a groove 12 is formed by pressurization on the upper surface 11a of the tread base material 11 as will be described later, and an anti-slip member 20 is fixed in the groove 12.
Such a tread board 10 is constructed in a place where anti-slip property is required mainly as an interior building material, such as a staircase step, a stair landing, and a lift of an entrance.
The tread board substrate 11 is made of a so-called wood-based material such as laminated wood, plywood, particle board, wood fiber board, etc., or a combination thereof, with a veneer attached as a decorative board, or natural solid wood. .

The groove 12 is formed along the longitudinal direction on the upper surface 11a on the nose side of the tread base material 11 and is not formed at both ends in the longitudinal direction. That is, the groove 12 is formed only from the longitudinal center of the tread base material 11.
Moreover, the concave groove 12 is formed in the curved surface where the opening edge 13 was rounded.
The anti-slip member 20 is made of a synthetic resin, rubber, or the like, and is configured of a member having a higher friction coefficient than at least the upper surface 11a of the tread base material 11.

In a state where the anti-slip member 20 is fixed in the groove 12, the anti-slip member 20 is buried so as not to protrude from the groove 12 as shown in FIG. Yes. That is, each of the anti-slip members 20 is formed to have a thickness T smaller than the depth D from the upper surface 11 a of the tread base material 11 to the bottom surface 14 of the groove 12.
The anti-slip member 20 is formed in a substantially trapezoidal shape when viewed in cross section, and its upper surface (upper side of the trapezoid) 21 is smaller than the lower surface (lower side of the trapezoid) 22 and has an inclined side surface (the trapezoidal inclined side). Side) 23. That is, the width W1 of the upper surface 21 of the anti-slip member 20 is formed to be smaller than the width W2 of the lower surface 22 thereof.
Further, the lower surface 22 of the anti-slip member 20 is formed to have substantially the same size as the bottom surface 14 of the groove 12.
With such a configuration, a narrow groove 11 b having a substantially V-shaped cross-sectional view is formed on the surface side of the tread plate 10 by the curved surface of the opening edge 13 of the groove 12 and the inclined side surface 23 of the anti-slip member 20. That is, the narrow groove 11 b is formed so as to surround the upper end periphery of the anti-slip member 20.

Next, a method for manufacturing the tread 10 having the above-described configuration will be described.
First, the press die 30 is pressed against the upper surface 11a of the tread base material 11 placed on a base (not shown) (FIGS. 2A and 2B).
The press die 30 is slidably in contact with the pressing portion 31 protruding from the flat surface portion 32 that is the facing surface of the upper surface 11a of the tread base material 11 and the end surface that becomes the nose side of the tread base material 11 during pressing, and serves as a guide. Part 33 is formed, and is driven up and down by an elevating means (not shown).
The pressurizing unit 31 is formed so as to protrude in accordance with the shape of the groove 12 to be formed. In the present embodiment, the groove 12 is not formed over the entire length of the tread base material 11. The tread base material 11 has a shape that protrudes only from the center other than the portions corresponding to both ends in the longitudinal direction. The peripheral edge of the tip is rounded and curved in order to prevent breakage and damage to the upper surface 11a of the tread base material 11 during pressurization.

When the press die 30 is driven and lowered as described above and pressed against the upper surface 11 a of the tread base material 11, the tread base material 11 is plastically deformed by the pressurizing portion 31, and the groove 12 is formed. (FIG. 2 (c)). Thus, the groove 12 formed by pressurization has a shape in which the opening edge 13 is naturally rounded.
Next, the above-described anti-slip member 20 is fixed in the groove 12 with an adhesive or the like. Alternatively, it may be fixed by screwing or pinning.

  Thus, by forming the groove 12 by pressurization, processing is easier than in the case of forming the groove by conventional cutting or the like. In particular, as in the present embodiment, the groove 12 can be easily processed only in the middle along the longitudinal direction of the tread plate 10. That is, when forming the groove groove only in the middle by cutting or the like, as described later, not only the cutting surface along the longitudinal direction but also the post-treatment of the cutting surfaces at both ends is necessary, which involves many operations. However, according to this embodiment, the groove 12 can be easily formed. Moreover, since the groove 12 is formed by pressurization, cutting waste or the like (wood waste in this embodiment) is not generated, and the manufacturing process is simplified.

In addition, when the groove is formed by cutting as in the prior art, an angular corner (protruding corner) is formed, and it may be necessary to process the corner, or the corner may be damaged. However, in this embodiment, as described above, the concave groove 12 is formed by pressurization, so that the corner (opening edge 13) has a naturally rounded shape, and it is necessary to perform the treatment or damage. The fear is reduced.
Furthermore, since the anti-slip member 20 is buried and fixed in the groove 12 formed by pressurization, the anti-slip member 20 does not protrude from the surface of the tread board 10, and during the manufacturing process, transportation, and construction. In addition, the workability is good and the anti-slip member 20 can be prevented from being damaged. In addition, this prevents the feet from being caught and prevents the hitting.

Furthermore, the tread 10 manufactured as described above and having the above-described configuration can be manufactured easily and easily.
Further, even when an elastic body such as rubber is applied as the anti-slip member 20 as in the present embodiment, the opening edge 13 of the groove 12 is a curved surface. Furthermore, even if the anti-slip member 20 sinks and the sole touches the opening edge 13, the feel is smooth.
Furthermore, since the narrow groove 11b is formed on the surface side of the tread plate 10 by the curved surface of the opening edge 13 of the groove 12 and the inclined side surface 23 of the anti-slip member 20, when the step is stepped, the narrow groove 11b , By slipping in the sole, it performs a further anti-slip function and increases the anti-slip property.

In this embodiment, as the press die 30 for forming the concave groove strip 12, the corners of the press portion 31 protruding from the flat portion 32 and the corners of the flat portion 32 are formed into a square shape, thereby forming the concave groove strip. The 12 opening edges 13 are formed into a convex curved surface that is naturally rounded by pressurization. For example, the opening edge 13 is forcibly projected by a press die with the corner of the opening as a concave curved surface. You may make it become a curved surface. According to this, the density around the opening edge 13 is also increased, and damage and the like can be further reduced.
In the present embodiment, the thickness T of the anti-slip member 20 is made smaller than the depth D of the groove 12, but the thickness T and the depth D are substantially the same. In this way, the upper surface 21 of the anti-slip member 20 and the upper surface 11a of the tread base material 11 may be substantially the same height. Alternatively, the thickness T of the anti-slip member may be larger than the depth D of the groove 12.

Furthermore, the anti-slip member 20 is formed in a substantially trapezoidal shape in cross section so that the narrow groove 11b is formed between the upper edge of the anti-slip member 20 and the opening edge 13 of the groove 12. The anti-slip member 20 is formed in a substantially inverted trapezoidal shape in cross section in accordance with the shape of the opening edge 13, and the upper surface 21 of the anti-slip member 20 and the upper surface 11a of the tread base material 11 are substantially flush with each other. You may do it.
Furthermore, in this embodiment, although the tread base material 11 is comprised with one member, for example, the tread base material is connected to the nose side of the tread main body and the nose side of the main tread main body. It is good also as an aspect which pressurizes and forms the groove 12 on the upper surface of this nose part, and adheres the anti-slip | skid member 20 in this groove 12.

Next, another embodiment according to the present invention will be described with reference to the drawings.
FIG. 3 shows a tread according to the second embodiment, (a) is a schematic partial cross-sectional view showing a state before the anti-slip member is fixed, and (b) is a view corresponding to FIG. 1 (a). FIGS. 4A to 4D are schematic partial cross-sectional views for explaining a method of manufacturing the tread according to the embodiment.
In addition, it demonstrates centering around difference with 1st Embodiment, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

Similar to the first embodiment, the tread 10A according to the present embodiment is configured such that the anti-slip member 20A is fixed in the groove 12A formed on the upper surface 11Aa of the tread base 11A.
As for tread base material 11A, the decorative sheet 16 is previously affixed on the surface of the base material 15, and the groove 12A is formed by pressurization so that it may mention later. Further, a locking groove 17 is formed on the bottom surface 14 of the groove 12A.
The base material 15 is a laminated material, plywood, particle board, wood fiber board or the like, or a combination thereof, and is made of a wood-based material.
The decorative sheet 16 is made of a synthetic resin or the like, and is formed of a flexible sheet body having a multilayer structure including a protective layer, a pattern layer, and the like.

The anti-slip member 20 </ b> A is generally configured by an anti-slip portion 24 exposed on the surface side of the tread 10 </ b> A, and a fixed ridge 25 that is coupled to the lower side and press-fitted into the engaging groove 17.
The anti-slip portion 24 has a length along the longitudinal direction and a width in a direction perpendicular to the longitudinal direction smaller than the length and width of the bottom surface 14 of the concave groove 20A, and the length of the locking groove 17 and It has a flange portion 24 a that is held on the bottom surface 14 around the locking groove 17 in a state in which the fixed protrusion 25 is press-fitted into the locking groove 17.
Two anti-slip grooves 24b are formed on the entire surface of the anti-slip portion 24, that is, the upper surface 21 of the anti-slip member 20A in the longitudinal direction.
With such a configuration, the narrow groove 11Ab is formed on the surface side of the tread plate 10A with a part of the bottom surface 14 of the groove 12A and the curved surface of the opening edge 13 coupled thereto and the side surface of the flange 24a of the anti-slip member 20A. Formed. That is, the narrow groove 11Ab is formed so as to surround the upper edge of the anti-slip member 20A. Thereby, like the said 1st Embodiment, anti-slip property can further be improved and anti-slip property can be improved further in combination with the two anti-slip grooves 24b.

The fixed ridge 25 includes a base portion 26 that protrudes downward along the longitudinal direction of the anti-slip portion 24, and an elastic piece 27 that protrudes from both sides of the base portion 26.
The base portion 26 is formed such that the length along the longitudinal direction and the width in the direction perpendicular thereto are smaller than the length and width of the anti-slip portion 24 and the locking groove 17. That is, when press-fitted into the locking groove 17, the flange 24 a is held on the entire bottom surface 14 around the locking groove 17.
The elastic pieces 27 projecting from both sides of the base portion 26 are projected at two locations, a tip side (downward side) portion of the base portion 26 and a portion closer to the non-slip portion than the portion, From the base end of this, it protrudes slightly upwards. Further, the elastic pieces 27 projecting from both sides of the base portion 26 are in a state before being press-fitted into the locking groove 17, so that the width between the distal ends of the elastic pieces 27 on both sides is the locking groove 17. It is said that it is larger than the width.

The elastic piece 27 is elastically deformed on both inner side surfaces of the locking groove 17 with elastic deformation as shown in FIG. 3 (b) in a state where the fixed protrusion 25 is press-fitted into the locking groove 17. Abut.
In this state, the flange portion 24 a of the anti-slip portion 24 is held on the bottom surface 14 around the locking groove 17 over the entire circumference.
In the present embodiment, the fixed protrusions 25 and the locking grooves 17 are continuous long ones. However, the present invention is not limited to this, and the fixed protrusions and the locking recesses are provided with a certain interval. You may form discontinuously.

Next, a method for manufacturing the tread 10A having the above-described configuration will be described.
First, as in the first embodiment, the press die 30A is pressed against the upper surface 11Aa of the tread base material 11A placed on a base (not shown) (FIGS. 4A and 4B). ).
Unlike the press die 30 of the first embodiment, the press die 30A is configured such that only the pressurizing unit 31A is driven to move up and down to press the upper surface 11Aa of the tread base material 11A.
The peripheral edge of the tip of the pressurizing part 31A is rounded and curved like the pressurizing part 31 of the first embodiment. In addition, the shape along the longitudinal direction of the pressurizing portion 31A is formed in accordance with the shape of the groove 12A to be formed as in the pressurizing portion 31 of the first embodiment. Since the flat surface portion 32 is formed and the pressurizing portion 31 is not protruded from the surface as in the first embodiment, the concave groove is controlled by controlling the degree of lowering (pressing) of the pressurizing portion 31A. The depth of the stripe can be set more freely.

When the pressing portion 31A is lowered and pressed against the upper surface 11Aa of the tread base material 11A to which the decorative sheet 16 has been attached in advance, the tread base material 11A is accompanied by plastic deformation by the pressing portion 31A. A groove 12A is formed (FIG. 4C). Thus, the groove 12A formed by pressurization has a shape in which the opening edge 13 is naturally rounded.
Next, the locking groove 17 is formed on the bottom surface 14 of the groove 12A by a cutting tool (not shown) such as an end mill or a groove cutter (FIG. 4D).

  Next, the fixed protrusion 25 of the anti-slip member 20A is press-fitted into the locking groove 17, and the anti-slip member 20A is locked and fixed in the concave groove 12A. At this time, as described above, the elastic piece 27 elastically contacts both inner side surfaces of the locking groove 17 so that the anti-slip member 20A can be fixed to the concave groove 12A. In this case, it may be fixed by an adhesive or the like, or may be fixed by screwing or pinning.

According to such a method for manufacturing the tread board 10A, the groove 12A can be easily formed by applying pressure to the tread board base 11A to which the decorative sheet 16 is attached in advance. That is, when forming the groove groove by cutting as in the prior art, as described above, it is necessary to stick a decorative sheet after the groove groove is formed, and there is no gap in the groove groove. It was not easy to stick, and the workability of the sticking process was poor. On the other hand, according to this embodiment, even when the decorative sheet 16 is previously attached to the surface of the base material 15, the groove 12A can be easily formed by pressurization. That is, the decorative sheet 16 made of a synthetic resin material or the like can be easily recessed into the upper surface 11Aa of the tread base material 11A by pressing the pressing portion 31A from above the decorative sheet 16 without being broken even by pressurization. Article 12A can be formed.
Further, when the groove is formed by cutting after the decorative sheet 16 is pasted, the edge of the decorative sheet near the opening edge of the groove is broken and the design is deteriorated. Since the groove 12A is formed by pressure, the groove 12A can be processed after the decorative sheet 16 is pasted, and a tread with good design can be easily manufactured.

Furthermore, the tread 10A according to the present embodiment has a fixed ridge 25 protruding along the longitudinal direction below the anti-slip member 20A, and the fixed ridge 25 is locked to the bottom surface 14 of the groove 12A. Since the locking groove 17 to be fixed is further formed, the fixing property of the anti-slip member 20A is further improved and the durability is excellent.
Here, as described above, the groove 12A is formed by the pressurizing portion 31A on the tread base material 11A to which the decorative sheet 16 is previously attached, and then the locking groove 17 is formed by cutting. is doing. Therefore, the end portion of the decorative sheet 16 positioned at the upper end periphery of the locking groove 17 is broken, and the design property is deteriorated as it is, but the end of the decorative sheet 16 is caused by the flange portion 24a of the anti-slip member 20A. Since the part is pressed, the design is not hindered. That is, the end portion of the decorative sheet 16 is not exposed on the surface side of the tread board 10A. In addition, since the flange portion 24a is provided in this way, processing of the cutting surface of the locking groove 17 formed by cutting is unnecessary.

Furthermore, as described above, since the groove 12A is formed by pressurization, the density below and around the groove 12A is higher than the other portions of the tread base material 11A. As a result, even when the locking groove 17 is formed by cutting as in the present embodiment, the density of the protruding corners of the bottom surface 14 of the groove 12A and the locking groove 17 is increased. As a result, Further, it is possible to prevent damage or the like at the protruding corner, and it is possible to stably fix the anti-slip member 20A.
Furthermore, since the anti-slip member 20 </ b> A includes the elastic piece 27 as described above on the fixed protrusion 25, the elastic piece 27 elastically contacts the inner surface of the locking groove 17. The anti-slip member 20 </ b> A can be easily fixed in the concave groove 12 </ b> A by being engaged with the engaging groove 17.
In addition, you may make it form the groove 12A based on this embodiment with the press die 30 demonstrated in the said 1st Embodiment.

Next, still another embodiment according to the present invention will be described with reference to the drawings.
5 (a) and 5 (b) are views corresponding to FIG. 1 (a), showing treads according to the third embodiment and the fourth embodiment, respectively.
In addition, it demonstrates centering around difference with 1st Embodiment, About the same structure, the same code | symbol is attached | subjected and description is abbreviate | omitted.

As in the second embodiment, the tread 10B according to the third embodiment shown in FIG. 5A pressurizes the groove 12 on the upper surface 11Aa of the tread base 11A to which the decorative sheet 16 has been attached in advance. The anti-slip member 20 is fixed in the concave groove 12.
In this structure, the configuration of the tread base material 11A is different from the tread base material 11 described in the first embodiment, and the other configurations are the same.
In this way, by forming the groove 12 by pressurizing together with the decorative sheet 16, similarly to the step board 10 </ b> A described in the second embodiment, the tread base material 11 </ b> A with the decorative sheet 16 attached thereto is used. However, the groove 12 can be easily formed.

A footboard 10C according to the fourth embodiment shown in FIG. 5B is different from the first embodiment in the configuration of the footboard base material 11B.
That is, the tread base material 11 </ b> B includes a high-density back surface base material 19 made of, for example, a hard wood fiber base material or a hard synthetic resin material, which is difficult to press-form the groove 12, and the pressure-forming of the groove 12. For example, a low-density surface-side substrate 18 such as a particle board or a soft wood fiber substrate.
In this way, the surface layer of the tread base material 11B is the low density front side base material 18 and the lower layer is the high density and hard back side base material 19, so that the strength of the tread board 10C is not hindered. The pressurization of the groove 12 can be performed more easily, and as a result, it can be easily manufactured.
In addition, the tread base material 11B according to the present embodiment may have a decorative sheet 16 attached in advance to the surface thereof.

Next, still another embodiment according to the present invention will be described with reference to the drawings.
6 (a) and 6 (b) show the treads according to the fifth embodiment and the sixth embodiment, respectively, (a) is a diagram corresponding to FIG. 1 (a), and (b) is the tread plate. It is a schematic plan view.
In addition, it demonstrates centering around difference with 1st Embodiment and 2nd Embodiment, about the same structure, the same code | symbol is attached | subjected and description is abbreviate | omitted.

A step board 10D according to the fifth embodiment shown in FIG. 6 (a) is formed on the bottom surface 14 of a groove 12B formed on the same tread base material 11 as in the first embodiment, and further with the second embodiment. A similar locking groove 17 is formed.
The anti-slip member 20B includes an anti-slip portion 24A that is exposed on the surface side of the tread plate 10D, and a fixed protrusion 25A that is coupled to the lower portion of the anti-slip portion 24A and is fitted into or pressed into the locking groove 17.
The non-slip portion 24A has the same shape as the anti-slip member 20 described in the first embodiment, and the fixed protrusion 25A has a length along the longitudinal direction of the anti-slip portion 24A and a width in a direction perpendicular thereto. By projecting so as to be smaller than that, the flange portion 24Aa is formed around the periphery.
Thereby, like the said 2nd Embodiment, collar part 24Aa is hold | maintained at the bottom face 14 of the groove 12B.
Further, unlike the fixed ridge 25 described in the second embodiment, the fixed ridge 25A has a simple shape having a substantially rectangular shape in cross section.
Note that the locking groove 17 is formed in each of the tread base materials 11A and 11B described in the third embodiment and the fourth embodiment, and the anti-slip member 20B according to the present embodiment is fixed. It may be.

Unlike the tread plate 10 described in the first embodiment, the tread plate 10E according to the sixth embodiment shown in FIG. 6 (b) has a groove 12C formed on the top surface 11a on the nose side of the tread base material 11 in the longitudinal direction. Along the direction, it is separated into a plurality of locations (three locations in the example). That is, the groove 12 </ b> C is not formed over the entire length of the tread base material 11. Further, the anti-slip member 20C is also formed in accordance with the concave groove 12C and is fixed to the concave grooves 12C.
Since the formation of the concave groove 12C is performed by pressurization as described above, the concave groove 12C is formed separately at a plurality of locations along the longitudinal direction of the tread base material 11 as in this embodiment. It is also easy to give a plurality of separated anti-slip functions to the surface of the tread plate 10E by fixing the anti-slip member 20C in the groove 12C.
When a plurality of separated anti-slip members are fixed to the surface of the tread board in this way, it is safe to form the width between adjacent anti-slip members so as to be smaller than the width of the sole. From the viewpoint of sex.
In addition, since the concave groove is formed by pressurization, it can be easily curved or zigzag not limited to other shapes, for example, straight lines, and it requires improved design and anti-slip properties. A groove can be formed at a desired portion to be fixed, and the anti-slip member can be fixed.

In addition, the concave groove and the anti-slip member of each tread described in the second embodiment to the fifth embodiment are formed separately in a plurality of locations along the longitudinal direction of the tread as in this embodiment. It may be fixed.
In addition, the formation of the groove grooves described in the third to sixth embodiments may be performed by the press dies 30 and 30A described in the first embodiment or the second embodiment.

An example of embodiment of the tread concerning the present invention is shown, (a) is a schematic fragmentary sectional view of the (XX) line of XX, (b) is a schematic plan view of a tread. (A)-(c) is a general | schematic fragmentary sectional view for demonstrating the manufacturing method of the tread which concerns on the same embodiment all. The other example of embodiment of the step board which concerns on this invention is shown, (a) is a schematic fragmentary sectional view which shows the state before adhering a non-slip | skid member, (b) is the figure corresponding to Fig.1 (a). It is. (A)-(d) is a general | schematic fragmentary sectional view for demonstrating the manufacturing method of the tread which concerns on the same embodiment all. (A), (b) is a figure corresponding to FIG. 1 (a) which shows the further another example of embodiment of the tread concerning this invention. (A), (b) shows the further another example of embodiment of the tread which concerns on this invention, (a) is the figure corresponding to Fig.1 (a), (b) is the outline of a tread. It is a top view.

Explanation of symbols

10, 10A, 10B, 10C, 10D, 10E Tread board 11, 11A, 11B Tread base material 11a, 11Aa, 11Ba Top surface of tread base material 12, 12A, 12B, 12C Concave groove 13 Open edge 14 Concave groove bottom 16 Decorative sheet 17 Locking groove (locking recess)
20, 20A, 20B, 20C Non-slip member 21 Upper surface of anti-slip member (upper side when viewed in cross section)
22 Bottom surface of non-slip member (lower side when viewed in cross section)
23 Inclined side of anti-slip member (inclined side when viewed in cross section)
25, 25A Fixed ridge (fixed ridge)
30, 30A press mold

Claims (7)

In the tread with a non-slip member fixed to the tread base material,
Fixing the the upper surface of the step board base material, the groove strip where the opening edge and the convex curved form pressurized pressure type, the concave groove Article in the upper surface is to obscure the stop member sliding so as not to protrude from the concave groove Article It is assumed that the structure
A tread having a narrow groove formed on an upper surface by a convex curved surface of the opening edge and a side surface of the anti-slip member . In the tread with a non-slip member fixed to the tread base material,
On the upper surface of the tread base material, a groove is formed by pressurizing an opening edge with a convex curved surface, and a non-slip member is fixed in the groove.
The anti-slip member is formed in a substantially trapezoidal shape having an upper side smaller than the lower side and an inclined side when viewed in cross section, and the lower surface of the anti-slip member is a bottom surface of the groove A tread board that is approximately the same size. In claim 2 ,
The anti-slip member is a tread buried in the groove so that the upper surface does not protrude from the groove. In any one of Claims 1 thru | or 3,
On the lower surface of the anti-slip member, a fixed convex portion is projected along the longitudinal direction thereof,
A tread having a locking recess for locking and fixing the fixing protrusion on the bottom surface of the groove. On the upper surface of the tread base material, a press die is pressed to form a groove groove with an opening edge as a convex curved surface.
Next, an anti-slip member is buried and fixed in the groove so that the upper surface does not protrude from the groove, and a narrow groove is formed on the upper surface by the convex curved surface of the opening edge and the side surface of the anti-slip member. A method for manufacturing a tread, which is characterized in that it is formed . On the upper surface of the tread base material, a press die is pressed to form a groove groove with an opening edge as a convex curved surface.
Next, the groove is formed in a substantially trapezoidal shape having an upper side smaller than the lower side and an inclined side when viewed in cross-section, and the lower surface is formed to be approximately the same size as the bottom surface of the groove. A method of manufacturing a tread, characterized in that a non-slip member is buried and fixed. In claim 5 or 6 ,
The tread base material is a method for manufacturing a tread, in which a decorative sheet is attached in advance.

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