JP3157908U7 - - Google Patents

Description

Shoe sole cushioning structure

The present invention relates to a shoe member, and more particularly to a shoe sole cushioning structure formed by injection molding of resin.

People who are stressed by work can relieve work stress through sports (eg jogging or tennis). When doing sports, wearing appropriate shoes can prevent unexpected movement injuries, so the use of shoes with airbags on the shoe sole has increased, and such shoes are worn. By doing so, impacts and injuries to the foot when jogging or jumping can be mitigated.

A conventional airbag provided on a shoe sole forms an air chamber by blow molding, and forms an airbag by sealing an opening of the air chamber. By arranging a plurality of airbags on the shoe sole, it is possible to reduce the impact and injury to the foot during jogging or jumping. The air pressure inside the airbag formed by blow molding determines the quality of the product, but it is difficult to control the air pressure inside the air bag, which makes the air bag size and defect rate effective. Therefore, the number of defective products increases, and the defective products cannot be completely recycled, resulting in a wasteful increase in material costs.

On the other hand, an airbag molded by blow molding controls the thickness of the airbag by the atmospheric pressure, but it is difficult to make the thickness of the airbag accurately uniform. Cannot be controlled, and shoes that can be used for different purposes cannot be manufactured. When an airbag formed by blow molding is desired to have a manufacturer's mark on the airbag, only a method of applying a paint is available, which increases the manufacturing cost, and the applied paint is Since it is easy to fall off, durability is not good.

The main object of the present invention is to provide a shoe cushioning structure that is molded by injection molding of resin and has an excellent manufacturing method itself, so that the defective rate can be kept low and the degree of freedom of use of the product increases. There is.

According to the shoe cushioning structure of the present invention, it is configured by docking two docking tools, each docking tool has an inner surface and an outer surface, and a connecting edge is formed on the periphery of the docking tool. The docking tool extends outwardly from the connecting portion between the inner surface and the outer surface, the extending direction is a horizontal direction, and the direction perpendicular to the horizontal direction is the vertical direction, and one inner surface of the docking tool is the vertical The two docking tools extend along the direction to form an accommodation space, and the two docking tools are made by injection-molding an elastic body that is injection-molded with the inner surfaces facing each other and the connection edges abutting each other, and a resin. An injection sealing tool that welds the connecting edges of the two docking tools of the elastic body in a manner that the injection sealing tool has an integral structure, an upper part, a lower part, the upper part, and Side portions connecting the lower portions; Consists, the upper and the lower and the side portions forming a concave jaws, the injection closure covers the outer surface of the connecting edge of the two docking members of the elastic body by the jaws It is characterized by that.

According to the shoe sole cushioning structure of the present invention, the two docking devices each have a hollow hemispherical shape and have an accommodation space.

According to the shoe cushioning structure of the present invention, one of the two docking devices has an irregular shape and has a plurality of receiving spaces, and the other docking device has a plate shape. .

According to the shoe sole cushioning structure of the present invention, the elastic body is formed by docking the two docking tools, and serves as a shoe sole.

According to the shoe sole cushioning structure of the present invention, the accommodation spaces of the two docking tools communicate with each other.

According to the shoe sole cushioning structure of the present invention, the elastic body exhibits an airtight hollow ball shape by the injection sealing tool.

According to the shoe cushioning structure of the present invention, the injection sealing device is formed between the connecting edges of the two docking devices.

According to the shoe cushioning structure of the present invention, it is molded by injection molding resin, and the manufacturing method itself is excellent, so that the defect rate can be kept low and the degree of freedom of use of the product is increased. .

It is a disassembled perspective view of the buffer structure of one Embodiment of this invention. It is a schematic diagram which shows putting the elastic body of Example 1 of this invention into a shaping die, and shape | molding an injection sealing tool. It is a perspective view of the combined state of the buffer structure of one embodiment of the present invention. It is sectional drawing of the combined state of the buffer structure of one Embodiment of this invention. It is a mimetic diagram of the state where the buffer structure of one embodiment of the present invention is applied to shoes. It is a schematic diagram which shows the elastic body of Example 2 of this invention. It is a schematic diagram of the state in which the elastic body in FIG. 6 is applied to shoes. It is a schematic diagram which shows the elastic body of Example 3 of this invention. It is a schematic diagram of the state in which the elastic body in FIG. 8 is applied to shoes. It is a schematic diagram which shows the elastic body of Example 4 of this invention. It is a schematic diagram of the state by which the elastic body in FIG. 10 is applied to shoes. It is a schematic diagram which shows shape | molding the label | marker part of this invention. It is a schematic diagram which shows the state where the thickness of the docking part of this invention is non-uniform | heterogenous.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, FIG. 1 to FIG. 4 are referred to. The shoe sole cushioning structure according to the first embodiment of the present invention includes an elastic body 10 and an injection sealer 20.

The elastic body 10 is configured by docking two docking tools 11, and in the first embodiment, the two docking tools 11 each have a hollow hemispherical shape and are configured by injection molding a resin. It has an inner surface 111 and an outer surface 112, and a connecting edge 113 is formed on the periphery thereof, and the connecting edge 113 extends outward from a connecting portion of the inner surface 111 and the outer surface 112 of the docking tool 11, and the extending direction is horizontal. X, the direction perpendicular to the horizontal direction X is the vertical direction Y, and the inner surface 111 of the docking tool 11 extends along the vertical direction Y to form an accommodation space 114, and the two docking tools 11 111 face each other, the accommodation space 114 communicates with each other, and the connecting edges 113 abut each other.

The injection sealing tool 20 has an integral structure, and welds the connecting edges 113 of the two docking tools 11 of the elastic body 10 by a method of injecting resin. The injection sealer 20 is composed of an upper part 21, a lower part 22, and a side part 23 connecting the upper part 21 and the lower part 22, and the upper part 21, the lower part 22 and the side part 23 form a recessed pin 24. The injection sealing tool 20 covers the outer surface of the connecting edge 113 of the two docking tools 11 of the elastic body 10 by the pinch opening 24, and the elastic body 10 is sealed, and the two docking tools 11 of the elastic body 10 are sealed. The accommodation space becomes airtight, and the buffer structure 100 has a hollow ball shape.

The injection sealing tool 20 is configured by injection molding of resin, and is formed on the outer surface of the connecting edge 113 of the elastic body 10. When the injection sealing tool 20 is not formed on the periphery of the elastic body 10, the two docking tools 11 of the elastic body 10 are not connected. When it is desired to injection-mold the injection sealing tool 20, as shown in FIG. 2, the two docking tools 11 are docked and put into the molding die M, and the injection sealing tool 20 is molded into the molding die M. The runner M1 is provided, and when the molten resin is injected into the molding die M via the runner M1, the injection sealing tool 20 is molded, and the gas from the molten resin is also applied to the molding die M. It is pushed in. Since the molding die M corresponds to the connecting edge 113 of the two docking tools 11 of the elastic body 10, when resin is to be molded on the inner surface of the connecting edge 113 of the elastic body 10, the resin gas passes through the molding die M. When the resin is injected into the molding die M after that, the resin covers the outer surface of the connecting edge 113 of the elastic body 10. The two docking tools 11 of the elastic body 10 are sealed by the cooled resin. Then, the accommodation space 114 in the elastic body 10 becomes airtight, and a gas due to the molten resin remains in the accommodation space 114. Therefore, the buffer structure 100 has elasticity.

The buffer structure 100 is provided on the shoe A and the shoe sole A1, and as shown in FIG. 5, the shoe A is provided with a plurality of buffer structures 100, and the buffer structure 100 has elasticity by the gas in the accommodation space 114 of the elastic body 10. . Since the elastic body 10 is formed by injection molding a resin and docked with two docking tools 11 having a hollow hemispherical shape, each docking tool 11 can be mass-produced in advance. As long as the connecting edge 113 can respond | correspond mutually, the external shape of the docking tool 11 docked mutually may differ. If it does so, the docking tool 11 docked mutually can be made into an airtight state, and the external shape of the docking tool 11 can be changed according to a use. Since the docking tool 11 is molded by injection molding a resin and the manufacturing method has certainty, the defect rate can be kept low and the quality of the buffer structure can be ensured.

Moreover, the thickness of each docking tool 11 can be changed if necessary, and as shown in FIG. 13, the thickness of the docking tool 11 can be made non-uniform considering the force receiving direction and the shape of the product. Then, it becomes possible to manufacture the shoe A capable of receiving an external force from a specific direction, and the degree of freedom of use of the buffer structure 100 is increased.

Further, by providing in advance a mark or the like to be formed on the buffer structure 100 in the molding die, as shown in FIG. 12, a mark portion 116 such as a mark can be formed on the buffer structure 100, which is very convenient to manufacture. . In addition, when it is desired to change the face color of the buffer structure 100, the docking tool 11 can be made to have a different face color by using a resin having a different face color when the docking tool 11 is molded. Since it is completed at the time of molding, it is not necessary to increase the number of steps, and the face color of the docking tool 11 does not fall off even when used for a long time.

Furthermore, the outer shape of the buffer structure 100 of the present invention is not limited to the above shape, and as shown in FIGS. 6 and 7, the buffer structure 100 is formed into an irregular shape, and one of the docking tools 11 is plural. The other docking device 11 has a plate shape, opposes the housing space 114, seals the periphery of the buffer structure 100 with the injection sealing device 20, and gas is contained in the housing space 114. Therefore, the buffer structure 100 has elasticity and can achieve the purpose of buffering external force. Further, even if the outer shape of the elastic body 10 is changed as necessary, the same effect can be obtained.

Please refer to FIG. 8 and FIG. The docking tool 11 of the elastic body 10 is formed in a part of the shoe heel part A2 of the shoe A, and a storage space 114 is provided in each docking tool 11, and gas is stored in the storage space 114. Since it can be set as the shoe A part A2 of the shoe A, and the elastic body 10 has elasticity, it is not necessary to provide a buffer structure separately, and the freedom degree of manufacture and use is very high.

Please refer to FIG. The injection sealing tool 20 is formed between the connecting edges 13 of the two docking tools 11, and a resin stopper groove 115 is formed between each connecting edge 13 and the outer surface of each docking tool 11. A mode of the molding die M for molding the tool 20 is shown in FIG.

The present invention can be applied to shoes.

10: Elastic body, 11: Docking tool, 20: Injection sealing tool, 21: Upper part, 22: Lower part, 23: Side part, 24: Nipping port, 100: Buffer structure, 111: Inner surface, 112: Outer surface, 113: Connection edge, 114: storage space, 115: resin stopper groove, 116: sign part, A: shoe, A1: shoe sole, A2: shoelace part, M: molding die, M1: runner, X: horizontal direction, Y: Vertical direction.

Claims (7)

Two docking tools are docked, each docking tool has an inner surface and an outer surface, and a connection edge is formed on the periphery thereof, and the connection edge is a connection between the inner surface and the outer surface of the docking tool. It extends outward from the location, the extension direction is the horizontal direction, the direction perpendicular to the horizontal direction is the vertical direction, and one inner surface of the docking tool extends along the vertical direction to form a storage space And the two docking tools have an elastic body that is formed by injection molding such that the inner surfaces face each other, the connection edges abut each other,
An injection sealing tool for welding the connecting edges of the two docking tools of the elastic body in a method of injecting resin ,
The injection sealer has an integral structure, and is composed of an upper part, a lower part, and a side part that connects the upper part and the lower part, and the upper part, the lower part, and the side part have a recessed pin. The shoe sealing structure according to claim 1, wherein the injection sealing tool covers an outer surface of the connecting edge of the two docking tools of the elastic body by the pinching opening . The shoe cushioning structure according to claim 1, wherein each of the two docking tools has a hollow hemispherical shape and has an accommodation space. 2. The shoe cushion according to claim 1, wherein one of the two docking tools has an irregular shape and has a plurality of receiving spaces, and the other docking tool has a plate shape. Construction. 2. The shoe sole cushioning structure according to claim 1, wherein the elastic body is configured by docking the two docking tools to form a shoe sole. The shoe sole cushioning structure according to claim 2, wherein the accommodation spaces of the two docking tools communicate with each other. The shoe sole cushioning structure according to claim 2, wherein the elastic body has an airtight hollow ball shape by the injection sealing tool. The shoe cushioning structure according to claim 1, wherein the injection sealing tool is formed between the connecting edges of the two docking tools.