JP4171292B2 - Rug and its manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rug such as a snowboard and a method for manufacturing the same.
[0002]
[Prior art]
Conventional rugs include, for example, those provided with anti-slip means, for example, to prevent the rug from sliding on the floor or to prevent a user from sliding on the rug (for example, Patent Document 1).
[0003]
The rug described in Patent Document 1 includes an anti-slip sheet in which an anti-slip layer having a plurality of holes is formed on one surface and an adhesive layer having an adhesive force is formed on the other surface. The adhesive layer is bonded to the rug, and the anti-slip layer is in contact with the floor surface. With such a configuration, the rug can be prevented from slipping on the floor surface.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 7-39646 (4th page, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in the conventional rug, the anti-slip sheet is merely bonded to the rug with the adhesive force of the adhesive layer. Therefore, for example, if a force that separates the anti-slip sheet from the rug acts, the anti-slip sheet easily peels from the rug, and the above-described anti-slip effect may not be obtained. .
[0006]
The present invention has been conceived under such circumstances, and provides a rug that can prevent a member joined to the rug from easily peeling for the purpose of preventing slipping or the like. That is the issue. Moreover, this invention makes it the other subject to provide the manufacturing method of the rug which can manufacture such a rug suitably.
[0007]
DISCLOSURE OF THE INVENTION
In order to solve the above problems, the present invention takes the following technical means.
[0008]
The rug provided by the first aspect of the present invention is a resin on the upper surface of the above-mentioned tread plate portion of a rug body having a tread plate portion and support leg portions formed so as to extend integrally from the tread plate portion to the lower surface side thereof. The rug is a rug in which a body is stacked , and the rug body is formed with a first through hole penetrating the tread plate portion in a vertical direction in a region where the support leg portion is not formed, and the support leg portion. A second through-hole penetrating in the vertical direction from the upper surface of the tread plate portion to the lower surface of the support leg portion is formed, and the resin body is an upper layer laminated on the upper surface of the tread plate portion parts and, second to transmural inserted through the second through-holes with projecting the first protrusion that transmural inserted into the first through-hole as well as projecting from the top portion downward, downward from the upper portion And having the first projection The lower end of the protrusion, the first flange portion where the first protrusion is engaged with the lower surface of the anti-capable the step board portion being separated from said first through-holes are formed, the At the lower end of the second protrusion, a second hook is provided that engages the lower surface of the support leg so as to prevent the second protrusion from being detached from the second through hole. It is characterized by being.
[0009]
According to such a configuration, for example, even if a force that separates the resin body from the rug main body acts, the first and second collars are on the bottom surface of the rug main body , that is, the tread plate portion and the Unlike the prior art, the resin body does not easily peel from the rug body because it engages with the lower surfaces of the support legs . Thereby, the effect brought about by the resin body can be maintained for a long time. The effects brought about by the resin body include, for example, an anti-slip effect that prevents the rug itself from sliding on the floor surface and prevents the user from sliding on the rug, an effect that improves impact resistance, or a weather resistance. The effect which raises property and decoration is mentioned. That is, the second collar portion comes into contact with the floor surface, and it is possible to appropriately prevent the rug from slipping on the floor surface. Further, since a gap is formed between the tread plate portion and the floor surface, for example, when the rug is used in an environment where water can exist, drainage can be improved.
[0010]
In a preferred embodiment of the present invention, the resin body is softer than the rug body. According to such a configuration, among the effects described above, it is possible to expect an effect of improving the above-described anti-slip effect and impact resistance.
[0012]
In a preferred embodiment of the present invention, the upper surface of the upper layer part is formed in an uneven shape. According to such a configuration, for example, it is possible to further enhance the effect of preventing the user from sliding on the rug.
[0013]
The method for manufacturing a rug provided by the second aspect of the present invention is a method for manufacturing the rug provided by the first aspect of the present invention, wherein the rug main body is accommodated in a mold, A cavity in which the upper layer part of the resin body and the part for molding the first and second collar parts are connected to the first and second through holes of the rug body is formed in the mold. And a step of molding the resin body by filling the cavity with resin.
[0014]
According to such a manufacturing method, the rug provided by the first aspect of the present invention can be manufactured appropriately and easily. Moreover, the adhesiveness of the said rug main body and the said resin body can also be improved.
[0015]
Other features and advantages of the present invention will become more apparent from the following description of embodiments of the invention.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be specifically described with reference to the drawings.
[0017]
1 and 2 show an embodiment of a rug according to the present invention. In this embodiment, the present invention is applied to a snowboard. The snowboard X of the present embodiment includes a rug body 1 having a plurality of tread portions 11 and a plurality of resin bodies 2 arranged on the surface of the rug body 1.
[0018]
The rug main body 1 is made of, for example, polypropylene, and has a generally square shape in plan view as a whole. The rug main body 1 includes a plurality of support legs 12 and auxiliary legs 14 that can support the tread board 11 in addition to the strip-shaped tread board 11 and a plurality of engagements that are used to connect the other snowboard X. And joint portions 13a and 13b.
[0019]
The plurality of step board portions 11 are connected to each other via a plurality of thin piece portions 15 arranged at a predetermined interval between the side surfaces 11e facing each other. Each thin piece portion 15 can be bent and deformed in a substantially U shape in a side view, and the rug main body 1 can also be deformed into a state in which, for example, a plurality of tread plate portions 11 are arranged in a substantially U shape in a side view. It is.
[0020]
A plurality of first and second through holes 16a and 16b are formed on the upper surface 11f of the tread plate portion 11 as shown well in FIG. The first through-hole 16a has a substantially circular shape in plan view, and is arranged, for example, in a matrix shape over substantially the entire upper surface 11f. The second through hole 16 b is formed across the tread plate portion 11 and the support leg portion 12. The support leg 12 has a double structure including an outer cylinder 12a and an inner cylinder 12b, and is connected to the lower surface of the tread plate 11. The plurality of support legs 12 are arranged at predetermined intervals in the longitudinal direction of the tread plate 11. The outer cylinder 12a and the inner cylinder 12b are spaced apart from each other by a predetermined distance, and the inner cylinder 12b is supported by the outer cylinder 12a via four support pieces 12c. Four spaces surrounded by the outer cylindrical body 12a, the inner cylindrical body 12b, and the four support pieces 12c are open to the upper surface 11f of the tread plate section 11. That is, four through holes are formed across the tread plate portion 11 and the support leg portion 12. The 2nd through-hole 16b is comprised by these four through-holes located in a loop form planar view via the four support pieces 12c.
[0021]
The engaging portion 13 a is substantially hook-shaped and protrudes downward, and is formed so as to be connected to the side surfaces 11 a and 11 b of the tread plate portion 11 which is the outer peripheral portion of the rug main body 1. The engaging portion 13b has a hole portion through which the engaging portion 13a can be inserted, and is formed so as to be connected to the side surfaces 11c and 11d of the tread portion 11 serving as the outer peripheral portion of the rug main body 1. The auxiliary leg portion 14 has substantially the same height as the support leg portion 12. The auxiliary leg portion 14 is formed on the outer peripheral portion of the tread plate portion 11 so as to avoid the engaging portions 13a and 13b, and helps to maintain the shape of the tread plate portion 11.
[0022]
In the rug body 1, the plurality of tread portions 11 are spaced apart from each other by a predetermined distance, and the tread portion 11 is lifted from the floor to a predetermined height by the support legs 12. This makes it possible to improve drainage even when the SUNKO X is used in an environment where water can exist such as a bathroom or a veranda.
[0023]
The resin body 2 is, for example, an ethylene-based thermoplastic elastomer, which is softer than the rug body 1 and has rubber elasticity. The resin body 2 includes an upper layer portion 21 stacked on the upper surface 11f of the tread plate portion 11, a plurality of first and second protrusion portions 22a and 22b connected to the upper layer portion 21, and a plurality of first and second portions. And a plurality of first and second flange portions 23a and 23b respectively connected to the tips of the protrusion portions 22a and 22b.
[0024]
On the upper surface 21a of the upper layer portion 21, a plurality of protrusions 24 are arranged, for example, in a matrix shape over substantially the entire area. The first protrusion 22a is fitted in the first through hole 16a. The first flange portion 23 a is substantially hemispherical, and the periphery of the flat surface is in contact with the lower surface of the tread plate portion 11. The 2nd projection part 22b is comprised from four protrusions, and these are each fitted in the four through-holes which comprise the 2nd through-hole 16b. The second flange 23b has a substantially loop shape in plan view, and the periphery of the second flange 23b is in contact with the lower surface of the outer cylinder 12a and the inner cylinder 12b of the support leg 12. This 2nd collar part 23b is a part located in the lowest part of the snowboard X, and will contact a floor surface when the rug X is used.
[0025]
Next, an example of the manufacturing method of the above-mentioned SUNKO X will be described.
[0026]
First, the rug body 1 is formed. The rug body 1 can be molded by a general injection molding method using, for example, polypropylene as a raw material.
[0027]
Next, as shown in FIG. 4, the resin body 2 is formed at a predetermined position of the rug main body 1 by an insert molding method using, for example, a metal mold 3. The mold 3 is formed with a cavity 31 that matches the shape of the snowboard X. That is, as clearly shown in FIG. 5, when the rug main body 1 is accommodated in the cavity 31, a space portion 32 that matches the shape of the resin body 2 remains. When the rug body 1 is accommodated in the cavity 31, and then, for example, a molten material of an ethylene-based thermoplastic elastomer is injected into the cavity 31, the molten material covers the upper surface 11f of the tread plate portion 11, and the first and second through holes 16a. , 16b, etc., and the space 32 is filled. In this state, the resin body 2 can be formed by cooling and solidifying the molten material. By such a series of operations, the manufacture of the snowboard X in which the rug main body 1 and the resin body 2 are in close contact as shown in FIG. 1 can be completed.
[0028]
In the snowboard X of the present embodiment, for example, even if a force that separates the upper layer portion 21 of the resin body 2 from the rug main body 1 acts, the first and second flange portions 23a and 23b are respectively connected to the bottom surface of the tread plate portion 11. By engaging with the lower surface of the support leg 12, the first and second protrusions 22a and 22b do not come out of the first and second through holes 16a and 16b. Thereby, peeling of the resin body 2 from the rug main body 1 is prevented. Therefore, according to Sunoko X, for example, the following effects can be maintained over a long period of time.
[0029]
That is, since the upper surface 11f of the tread portion 11 of the rug body 1 is covered with the soft resin body 2, in addition to improving the impact resistance, the user can slide his / her feet on the snowboard X. Can be prevented. The protrusions 24 formed on the upper surface 21a of the upper layer portion 21 can further enhance the above-described anti-slip effect. Moreover, the 2nd collar part 23b located under the support leg part 12 can prevent the snowboard X slipping on a floor surface.
[0030]
The snowboard X having the above-described configuration is used in connection with a plurality of other snowboards X. The plurality of slats X are connected vertically and horizontally, for example, by engaging the engaging part 13a of one slatted X with the engaging part 13b of the other slatted X. Since the snowboard X can be deformed by the presence of the thin piece portion 15, the operation of connecting the snowboard X can be easily performed. Since the engaging portion 13a has a substantially hook shape, the engaged state engaged with the engaging portion 13b is not easily released.
[0031]
The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the rug according to the present invention can be varied in design in various ways. Similarly, the specific configuration of each work process in the method for manufacturing a rug according to the present invention can be variously changed.
[0032]
In the present invention, the resin body is not limited to being softer than the rug body. Even if the resin body is not soft, it is possible to obtain the effect of improving weather resistance and decoration.
[0033]
The support leg is not limited to a double structure composed of an outer cylinder and an inner cylinder, and may be a non-double cylinder such as a simple cylinder or a square cylinder. Even if it is such a structure, a tread board part can be supported and it can prevent that a resin body peels from a rug main body by forming a projection part and a collar part in an appropriate place.
[0034]
As means for forming the upper surface of the upper layer portion of the resin body in a concavo-convex shape, a recess may be provided instead of providing a protrusion. Even with such a configuration, it is possible to enhance the effect of preventing the user from sliding on the snowboard X.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a rug according to the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is a perspective view of a main part of the rug main body shown in FIG. 1;
4 is a cross-sectional view of a mold used for manufacturing the rug shown in FIG. 1. FIG.
FIG. 5 is a cross-sectional view illustrating a process of the method for manufacturing a rug shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rug body 11 Tread board part 12 Support leg part 16a 1st through-hole 16b 2nd through-hole 2 Resin body 21 Upper layer part 22a 1st projection part 22b 2nd projection part 23a 1st collar part 23b 2nd Buttocks 3 Mold X X

Claims (4)

On its lower side from the step plate portion and the step board portion A rug resin body on the top surface of the step board of the rug body is stacked with a support foot which is formed so as to extend integrally,
The rug main body has a first through-hole penetrating the tread plate portion in a vertical direction in a region where the support leg portion is not formed, and a top surface of the tread plate portion in a region where the support leg portion is formed. A second through hole penetrating in the vertical direction over the lower surface of the support leg is formed,
The resin body includes an upper layer layered on the upper surface of the tread plate portion, a first protrusion protruding downward from the upper layer portion and penetrating through the first through hole, and downward from the upper layer portion. And a second protrusion that protrudes and penetrates through the second through hole, and the first protrusion protrudes from the first through hole at a lower end of the first protrusion. A first brim that engages with the lower surface of the tread plate so as to prevent detachment is provided, and at the lower end of the second protrusion, the second protrusion is the second protrusion. A rug comprising a second collar portion that engages with the lower surface of the support leg portion so as to prevent the separation from the through hole .   The rug according to claim 1, wherein the resin body is softer than the rug main body. The rug according to claim 1 or 2 , wherein an upper surface of the upper layer portion is formed in an uneven shape. A method for manufacturing a rug according to any one of claims 1 to 3 ,
By accommodating the rug main body in the mold, the upper part of the resin body and the portions for molding the first and second collars are formed in the mold . A method for producing a rug, comprising the steps of forming a cavity connected to the first and second through holes and molding the resin body by filling the cavity with resin.

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