JP3033539U - Sandal band - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To make it possible to efficiently and easily manufacture a sandal band that is well suited to the instep of the foot. SOLUTION: A sandal band B is composed of a surface material 1 made of synthetic leather joined to each other, an intermediate material 2 made of hot melt impregnated non-woven fabric, and a backing material 3 made of expanded synthetic leather. Therefore, the hot melt of the intermediate material 2 is heated and softened to form the band in a shape that can conform to the surface of the last for fishing, so that the band is held in the above shape after the hot melt is cooled.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a sandal band.

[0002]

[Prior art]

 As shown in FIG. 9, the fishing last (L) used in manufacturing sandals has such a shape on the instep of the foot. By the way, if the sandal band (b) is a flat one integrally composed of a front material made of synthetic leather and a backing made of expanded synthetic leather, which are simply joined together, When the last (L) is covered with, the band (b) does not face the surface of the last (L) and is in a state of being floated from the last (L) surface, as shown by the solid line in FIG. In this state, if the band (b) is caught and sandals are made, the center of the front and rear edges of the band (b) is inevitably not close to the instep and the foot feels uncomfortable. It will also give you pain.

Therefore, conventionally, as shown in FIG. 8, two pieces of a left half body (bl) and a right half body (br) of the band are purposely made, but both half bodies (bl) ( The opposing edges (31) and (32) of br) are formed in the shape of a concave arc, and the opposing edges (31) and (32) are connected to each other so as to extend to the surface of the last (L 1).

[0004]

[Problems to be solved by the invention]

 The conventional sandal band which cannot be fitted to the surface of the last (L) unless the above is done is inefficient and troublesome to manufacture.

It is an object of the present invention to provide a sandal band that is efficient and easy to manufacture and that is familiar to the instep of the foot.

[0006]

[Means for Solving the Problems]

 In the sandal band according to the present invention, the band is composed of a surface material made of synthetic leather joined to each other, an intermediate material made of non-woven fabric impregnated with hot melt, and a backing material made of expanded synthetic leather. The hot melt of the intermediate material is heated and softened to form the band in a shape that can fit the surface of the last for fishing, so that the band is held in the above shape after the hot melt is cooled.

[0007]

[Embodiment of the invention]

 FIG. 1 shows a sandal band (B) of the present invention having a shape that can be fitted to the surface of a fishing last (L), and FIG. 2 shows a sandal (S) to which the sandal band (B) is attached. ) Is shown.

As shown in FIGS. 3 and 4, the sandal band (B) has a surface material (1) made of synthetic leather, an intermediate material (2) made of non-woven fabric impregnated with hot melt, and a foam synthetic leather. The twisted backing (3) is an initially flat band (B1) joined together. On this flat band (B), the left and right sides of the surface material (1) project from the left and right edges of the backing material (3) to form the fishing allowance (4). The left and right side edges of the intermediate material (2) are recessed from the left and right side edges of the backing material (3). The base fabric (not shown) for the front material (1) and the back material (3) is present on the side of the intermediate material (2).

FIGS. 5 to 7 show a forming apparatus for forming a flat band (B1) into a shape that can conform to the surface of the fishing last (L).

The molding apparatus comprises a left half body (7l) and a right half (7l) of a female die (7) which is swingably attached to an attachment member (6) fixed to the lower surface center of an upper female die holder (5). A half body (7r), a pair of left and right female type closing members (9) provided on the legs (8) provided on the lower surface of the female type holder (5) via the female type (7), It is composed of a lower male mold (10) which can be raised and lowered by a fluid pressure cylinder (not shown).

At the upper part of the left and right halves (7l) (7r) of the female mold (7), the groove (11) into which the horizontal plate-like portion (6a) of the mounting member (6) fits, and the horizontal plate-like portion (6a). ) Is formed with a groove (12) in which the bifurcated portion (6b) fits in at the left and right ends of the female bracket (6), and the bifurcated portion (6b) of the female type (7) is attached to each bifurcated portion (6b) by the pivot (13). Left and right halves (7l) (7r) are attached respectively. Then, the female mold (7) keeps the left and right halves (7l) (7r) in a predetermined closed state, that is, the left and right halves (7l) have a pair of left and right stoppers (14). It is provided on the lower surface of the female mold holder (5) so as to be located on both sides of the upper end of the (7r) and project downward. The female closure member (9) has its front end abutting the bottom of the recess (15) formed on the lower outer surface of each half (7l) (7r) of the female mold (7), and the rear part of the female holder (5). ) Of each leg (8), the bottomed push cylinder (17) is inserted into the bottomed hole (16) formed in the lower inner surface of the leg (8) and the bottomed push cylinder (17). The coil spring (18) is inserted and the tip is received at the bottom, and the spring pressing member (19) that receives the base end of the coil spring (18) and is loosely fitted to the rear part of the bottomed push cylinder (17). ), And a spring pressure adjusting screw rod (22) with a knob (21) screwed from the outside into the screw hole (20) of each leg provided on the center line extension of the bottomed hole (16), It consists of a lock nut (23) screwed onto the threaded rod (22) and fastened to the outer surface of each leg (8).

The mating surfaces of the male mold (10) and the female mold (7) are substantially matched to the shape of the last (L) surface corresponding to the portion where the sandal band (B) is covered. . As shown in FIG. 5, the positions of the left and right stoppers (13) are set so that the opening width (W1) of the female mold (7) in the closed state is slightly smaller than the width (W2) of the male mold (10). ing.

In forming the sandal band (B), the band (B1) is heated in advance until the hot melt of the intermediate material (2) is softened. Place the heated band (B1) on the male mold (10), and to prevent the band (B1) from wrinkling during molding, and also slide the band (B1) from the male mold (10). To prevent this, a wrinkle prevention cover (C) having a size slightly larger than this is applied. Then, as shown in FIG. 6 and FIG. 7, the male mold (10) is raised and the female mold (7) is pushed open from the bottom against the spring pressure of the female mold closing member (9) to open the band (B1). The wrinkle prevention cover (C), together with the male type (10) and the female type (7), are pressed against each other, and as shown by the chain line in FIG. Mold into B).

When the hot melt is cooled, the male mold (10) is lowered, the wrinkle prevention cover (C) is removed, and the sandal band (B) is removed from the male mold (10).

If the band (B1) does not have the intermediate material (2), the synthetic leather of the front material (1) and the back material (2) will have a male shape (10) and a female shape ( When the clamping force of 7) is removed, it returns to the original flat shape, but when the hot melt of the intermediate material (2) is cooled and hardened, it no longer returns to its original shape, so the surface material (1) and The return of the lining (3) to its original shape is prevented. It should be noted that each of the base fabrics of the synthetic leather of the front material (1) and the back material (3) generally does not extend in the front-rear direction and the left-right direction of the band (B1) but can extend diagonally. Since it is used, there is no problem in molding.

The cooling may be natural cooling, but a cooling medium passage may be provided inside at least one of the male mold (10) and the female mold (7), and the cooling medium may be made to flow therethrough after molding. Also, for the above heating, a heater may be provided inside at least one of the molds (10) and (7).

[0017]

【Example】

 As the synthetic leather of the material (1), wet urethane synthetic leather having a melting point of 140 to 160 ° C. is used. As the hot melt of the intermediate intermediate material (2), ethylene vinyl acetate copolymer resin (EVA) having a softening point of 50 to 60 ° C. is used, and the nonwoven fabric is a nylon nonwoven fabric. As the foamed synthetic leather for the backing (3), sponge type vinyl chloride leather having a melting point of 145 ° C is used. Furthermore, as the anti-slip cover (C), a silicon mat having a thickness of 3 mm is used.

[0018]

[Effect of the invention]

 The sandal band of this invention, when incorporated into a sandal, fits well to the instep of the foot, and can be produced efficiently and easily.

[Brief description of the drawings]

FIG. 1 is a perspective view in which a part of a sandal band of the present invention is cut away.

FIG. 2 is a perspective view of a sandal to which the sandal band of the present invention is attached.

FIG. 3 is an exploded perspective view of the sandal band of the present invention before molding.

FIG. 4 is a cutaway bottom view of the sandal band of the present invention before molding.

FIG. 5 is a front view in which a part of the molding device is cut away before a male mold with a band is raised.

FIG. 6 is a front view in which a part of the molding device is cut away during band molding.

FIG. 7 is a sectional view taken along line VII-VII in FIG. 6;

FIG. 8 is a plan view showing left and right halves of a band for producing a conventional sandal band.

FIG. 9 is a side view showing a state in which a flat band is bent and covered on the fishing last.

[Explanation of symbols]

 (1): Surface material (2): Intermediate material (3): Lining material (B1): Flat band (B): Sandal band (L): Last for fishing

Claims (1)

[Utility model registration claims] 1. A band (B1) is a surface material (1) made of synthetic leather joined to each other, an intermediate material (2) made of hot melt impregnated non-woven fabric, and a backing made of foamed synthetic leather ( 3) and is formed, and the hot melt of the intermediate material (2) is softened by heating to form a band that can be fitted to the surface of the last (L) for fishing. ) Is held in the above-mentioned form.