JP2006083493A - Wear made of foamed rubber or foamed synthetic resin, and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide wear made of foamed rubber or foamed synthetic resin such as fishing trousers, waders or the like so designed as to prevent cracks from causing on a wear base material itself and prevent a reinforcing member from being pealed off when applying the reinforcing member such as a knee guard or a leg guard to the wear. <P>SOLUTION: The wear is obtained by attaching a synthetic resin reinforcing member to the surface of the wear base material which comprises foamed rubber or foamed synthetic resin and at least to the surface side of which a synthetic resin fiber cloth is attached. The reinforcing member is formed so as to make its forming material permeate among the fibers of the cloth without permeating to the wear base material, and is fixed to the cloth. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to foamed rubber / foamed synthetic resin ware such as fishing trousers and waders used in fishing, and wet suits used in diving and the like, and a method for manufacturing the same.

2. Description of the Related Art Conventionally, fishing trousers, waders, wet suits used for diving, and the like formed of foamed rubber or foamed synthetic resin have been widely used.
Foamed rubber and foamed synthetic resin are about 5 mm thick and have closed cells, and foamed rubber / foamed synthetic resin wear prevents fatigue by preventing the body immersed in water from cooling. Since there are many cases where the body is protected from obstacles such as thorny grass, tree branches, rocks, etc., and the work is carried out with the knee, the reinforcing member disclosed in Patent Document 1 is attached to the shin, knee, The one attached to the elbow is known.

In the conventional example disclosed in Patent Document 1, a synthetic resin reinforcing member (such as a knee pad or an elbow pad) is integrally provided by injection molding on a wet suit base material of chloroprene rubber having closed cells. It is intended to protect the elbow.
Japanese Utility Model Publication No. 64-18117

However, as described above, since the wet suit base material of chloroprene rubber is a foamed rubber having closed cells, when the resin is injection-molded to provide the reinforcing member, the filling material is injected into the mold with the pressure of the chloroprene rubber. It will penetrate into the bubbles (surface pores and internal bubbles).
Therefore, the reinforcing member provided in this way strengthens the bonding with the wet suit base material, but since the resin penetrates into the bubbles, the wet suit base material hardens and cracks are likely to occur. There was a drawback that the wet suit base material became brittle.

On the other hand, if the pressure is reduced during injection molding, the shape of the elbow pads and knee pads to be molded deteriorates, resulting in a problem that the commercial value is lowered.
The present invention has been devised in view of such circumstances, and when providing a reinforcing member such as a knee pad and a knee pad on foamed rubber / foamed synthetic resin wear such as fishing trousers and waders, the wear base material itself is not cracked. An object of the present invention is to provide foamed rubber / foamed synthetic resin wear and a method for producing the same, which prevent the reinforcing member from peeling off.

  In order to achieve such an object, the invention according to claim 1 is directed to a reinforcing member made of synthetic resin on the surface of a wear base material made of foamed rubber or foamed synthetic resin with a synthetic resin fiber cloth attached to at least the surface side. The foamed rubber / foamed synthetic resin garment provided with the reinforcing member is permeated between the fibers of the fabric without the molding material penetrating the garment base material, and is fixed to the fabric. It is characterized by.

The invention according to claim 2 is the foamed rubber / foamed synthetic resin wear according to claim 1, characterized in that the peripheral portion of the reinforcing member is flush with the wear base material. To do.
According to a third aspect of the present invention, there is provided a method for producing a foamed rubber / foamed synthetic resin garment comprising a synthetic resin on the surface of a garment base made of foamed rubber or foamed synthetic resin with a synthetic resin fiber cloth attached to at least the surface side. The molding material is arranged, the wear base material and the molding material are heated and pressed with a mold, and the molding material is infiltrated between the fibers of the fabric. According to a fourth aspect of the present invention, in the method for manufacturing foamed rubber / foamed synthetic resin wear according to the third aspect, a convex portion is provided on the pressing surface of the mold, and the convex portion is provided. It is characterized by preventing deviation of the molding material during pressing.

According to the first aspect of the present invention, since the reinforcing material penetrates between the fibers of the fabric without penetrating the wear base material and is fixed to the fabric, the wear base material is molded. It has the advantage that it does not harden with the material and does not crack.
According to the invention of claim 2, since the peripheral portion of the reinforcing member is flush with the wear base material, it is difficult to apply a force to peel the reinforcing member from the peripheral portion. The peeling of the reinforcing member from the base material will be prevented.

  Further, according to the manufacturing method according to claim 3, the molding material of the reinforcing member does not enter the bubbles of the wear base material, and according to the invention according to claim 4, the convex portion is the molding material during pressing. In order to prevent misalignment, it is possible to easily manufacture a wear base material provided with a reinforcing member that exhibits the above-described effects, and as a result, using such a wear base material, it is possible to make a foam rubber / foamed synthetic resin with a high commercial value. It is now possible to manufacture and provide clothing.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an embodiment of the invention according to claim 1 and claim 2, wherein 1 is a fishing wader formed by adhering or welding a plurality of wear base materials cut into predetermined portions. Therefore, the fishing wader 1 has a configuration in which the shoe portion K is attached to the bottom of the trouser-shaped portion Z. Then, as shown in the figure, a belt-like wear base material in which three bent portions 3, knee pads 5, and shin pads (reinforcing members) 7 are provided on the left and right leg portions 1 a and 1 b from slightly above the knee to the shin as shown in the figure. 9 is used.

As shown in the enlarged cross-sectional view of part A in FIG. 2, the wear base material 9 and the plurality of wear base materials forming the fishing wader 1 are chloroprene rubber (foam rubber) 11 having closed cells, polyurethane, etc. It is made of a foamed synthetic resin, and cloths 13 and 15 of synthetic resin fibers (for example, nylon, polypropylene, etc.) are attached to the front and back surfaces by heat welding.
In the present embodiment, the fabrics 13 and 15 are composed of a woven fabric of the above synthetic resin fibers.
As will be described later, the wear base material 9 has a thickness of about 2.5 to 3 mm due to the structure in which the bending portion 3, the knee pad 5 and the shin pad 7 are formed by press molding, but is not pressed. The wear base material in other parts has a thickness of about 3.5 mm.

  As shown in FIGS. 1 and 2, the three bent portions 3 arranged above and below the knee are arcuate in a front view whose center is curved upward along the shape of the thigh of the angler to wear. The knee pad 5 is similarly projected in a curved manner in a cross-sectional arc shape in accordance with the shape of the fisherman's knee. The knee pad 5 protects the knee from obstacles such as rocks.

  On the other hand, as shown in FIG. 1, the shin pad 7 is made of a sheet material having an inverted trapezoidal shape with an upper part 19 formed in an arc shape along the lower peripheral edge part 17 of the knee pad 5. Natural rubber, NBR, SBR, TPO (olefin-based elastomer), TPU (urethane-based elastomer), polyurethane, polyethylene, polyvinyl chloride, ethylene vinyl acetate, etc. are formed as molding materials. Hard material is used.

  As shown in FIGS. 2 and 3, the peripheral edge 21 of the shin pad 7 is formed flush with the edge 23 having an arcuate cross section projecting toward the wear base material 9 along the peripheral edge 21. However, as shown in the B section enlarged sectional view of FIG. 3, the shin pad 7 penetrates between the fibers of the fabric 13 without the molding material penetrating into the bubbles of the wear base material 9 (chloroprene rubber 11). It is fixed to the fabric 13.

In addition, in FIG. 1, 25 and 27 are the decorative recessed parts formed in the shin rest 7, and the recessed parts 25 and 27 have a design effect and are formed in the vertical direction along the shin so that the shin rest. The function of fitting 7 to the outer periphery of the shin is produced.
The wear base material 9 used for the fishing wader 1 according to the present embodiment is configured as described above, and the wear base material 9 is configured as follows according to an embodiment of the inventive method according to claims 3 and 4. A shin pad 7 is provided.

First, as shown in FIG. 4, the wear base material 9, which is cut into a strip shape and the fabrics 13 and 15 are attached to the front and back sides, is disposed in the cavity 31 of the receiving mold 29.
The cavity 31 is formed in the same shape as the wear base 9, but the cavity 31 is shallow so that the wear base 9 disposed in the cavity 31 protrudes upward as shown in FIG. . In addition, as described above, the wear base material 9 after pressing has a thickness of about 2.5 to 3 mm, but the wear base material 9 before pressing has a thick thickness protruding upward from the cavity 31. Is set to

Next, a sheet-like material 35 that forms the shin rest 9 is placed on a predetermined portion of the wear base 9. This sheet-like material 35 is a molding material made of natural rubber, rubber such as NBR or SBR, or synthetic resin.
Thereafter, the press die 37 heated from above is lowered to the die 29 and the wear base material 9 and the sheet-like material 35 are pressed as shown in FIG. 5, and the heating temperature of the press die 37 is 100 to 200 ° C. (preferably 130 to 140 ° C.), the press time is 10 seconds to 10 minutes (preferably 5 to 6 minutes), and the press pressure is 1 kg / cm ^{2 to} 100 kg / cm ² (preferably 20 kg / cm ^{2 to} 70 kg). / Cm ² ).

Further, as shown in FIG. 4, the pressing surface 39 of the press die 37 is formed with a concave portion 43 having a curved portion 41 having an arcuate cross section forming the rim portion 23 at the peripheral portion, and in the concave portion 43. Convex portions 45 and 47 for forming the concave portions 25 and 27 are provided, and the convex portions 45 and 47 form the concave portions 25 and 27 to prevent the sheet-like material 35 from being displaced during pressing.
Thus, the heated press die 37 is lowered onto the receiving die 29 and the wear base material 9 and the sheet-like material 35 are pressed, whereby the edge portion 23 is placed on the wear base material 9 as shown in FIG. 3 and the peripheral edge portion 21 are provided. As shown in the enlarged cross-sectional view of the B portion of FIG. The surface (side in contact with 9) penetrates between the fibers (including the weave) of the fabric 13 made of woven fabric, and the shin abutment (reinforcing member) 7 is held on the fabric 13 by this penetration portion. At this time, the softened or melted sheet-like material 35 does not pass through the fabric 13 and permeate into the bubbles (surface holes and internal bubbles) of the wear base material 9 (chloroprene rubber 11).

And as above-mentioned, the convex parts 45 and 47 form the recessed parts 25 and 27 at the time of this press, and the shift | offset | difference of the sheet-like material 35 is prevented.
Although not shown, the pressing surface 39 and the receiving die 29 of the press die 37 are provided with convex portions and cavities for forming the bending portion 3 and the knee pad 5, and simultaneously with the press molding of the shin pad 7, The bending portion 3 and the knee pad 5 are also press-molded on the wear base material 7.

And the wear base material 7 manufactured in this way and the other wear base material cut | disconnected for every predetermined site | part are adhere | attached or welded, the trouser-like part Z is formed, and the shoe part K is waterproofed at the bottom. Thus, the fishing wader 1 is manufactured.
Thus, when the angler wears such a fishing wader 1, the flexion / extension part 3 follows the flexion / extension of the foot, and the knee pad 5 and the shin pad 7 prevent the angler's knees and shins from obstructing the rocker's knees and shins. As described above, the shin pad 7 penetrates between the fibers of the fabric 13 without the sheet-like material 35 (molding material) penetrating into the bubbles of the wear base material 9 (chloroprene rubber 11). Since it is fixed to the fabric 13, unlike the conventional example of Patent Document 1, the wear base material 9 is not hardened by the molding material and does not crack.

However, since the peripheral edge portion 21 of the shin pad 7 is flush with the wear base material 9 via the edge portion 23, it is difficult to apply a force to peel off the shin pad 7 on the peripheral edge portion of the shin pad 7. Peeling of the shin guard 7 from the wear base material 9 is positively prevented.
And according to the manufacturing method concerning this embodiment, the molding material with which a metal mold is filled like the injection molding of patent documents 1 does not enter into the bubble of wear base material 9 (chloroprene rubber 11) by pressure, Further, at the time of pressing, since the convex portions 45 and 47 form the concave portions 25 and 27, the wear base material 9 provided with the shin plate 7 having the above-described effects can be easily provided to prevent the sheet-like material 35 from being displaced. As a result, it is possible to manufacture and provide a fishing wader 1 having a high commercial value using such a wear base material 9.

In the above embodiment, the invention according to claim 1 and claim 2 is applied to a fishing wader. However, the present invention can be applied to fishing trousers, tights, and other fishing wear. The present invention is applicable to foamed synthetic resin wear, and FIG. 6 shows the application of the present invention to a wet suit for diving.
That is, in FIG. 6, 49 is a wet suit formed by adhering or welding a plurality of wear base materials cut into predetermined portions. As shown in the figure, this embodiment extends from slightly above the knee to the shin. The wear base material 9-1, which uses the wear base material 9 for the left and right leg portions 49a, 49b, and is downsized in accordance with the elbow region, is provided in the elbow regions of both arm portions 49c, 49d. The wear base material 9-1 is provided with a bending / extending part 3-1, an elbow pad 5-1, and an elbow rest 7-1. The structure and the manufacturing method thereof are shown in FIGS. This is the same as the fifth embodiment.

  Thus, according to this embodiment, since the wear base materials 9 and 9-1 are not hardened and cracked, the wet suit 49 having a high commercial value is manufactured and provided as in the above embodiment. It is possible.

It is a front view of one embodiment of a fishing wader to which the invention according to claim 1 and claim 2 is applied. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is explanatory drawing of the manufacturing method which concerns on one Embodiment of Claim 3 and Claim 4. It is explanatory drawing of the manufacturing method which concerns on one Embodiment of Claim 3 and Claim 4. It is a front view of one embodiment of a wet suit to which the invention according to claim 1 and claim 2 is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fishing wader 3, 3-1 Bending / extending part 5 Knee pad 5-1 Elbow pad 7 Shank rest 7-1 Elbow rest 9, 9-1 Wear base material 11 Chloroprene rubber 13, 15 Fabric 21 Peripheral part 23 Edge parts 25, 27 , 43 Concave portion 29 Receiving die 35 Sheet-like material 37 Press die 39 Pressing surface 41 Curved portion 45, 47 Convex portion 49

Claims (4)

A foam rubber / foamed synthetic resin ware provided with a synthetic resin reinforcing member on the surface of a wear base material made of foamed rubber or foamed synthetic resin with a synthetic resin fiber cloth attached at least on the surface side,
The reinforcing member is a foam rubber / synthetic resin ware characterized in that the molding material penetrates between the fibers of the fabric without penetrating the wear base material and is fixed to the fabric.   The foamed rubber / foamed synthetic resin ware according to claim 1, wherein a peripheral portion of the reinforcing member is flush with a wear base material.   Place a molding material made of synthetic resin on the surface of a wear base material made of foamed rubber or foamed synthetic resin with a synthetic resin fiber cloth affixed to at least the surface side, and heat the wear base material and the molding material with a mold. And a reinforcing member is provided on the surface of the wear base material with the molding material while allowing the molding material to penetrate between the fibers of the fabric.   4. The method for producing foamed rubber / foamed synthetic resin ware according to claim 3, wherein a convex portion is provided on the pressing surface of the mold, and the convex portion prevents the molding material from being displaced during pressing.

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