JP2000279205A - Intermediate molded product of inner sole, inner sole manufacture, and its partial molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the intermediate molded product of an inner sole, an inner sole manufacturing method and its partial molding machine, wherein one satisfying the condition of each user is provided by quick machining. SOLUTION: An inner sole intermediate molded product 1 is provided with a toe portion 3, 'an inner and outer treading portions 5 and 7, a cup portion 15 from inner and outer non-treading portions 9 and 11 to a heel portion 13, and a middle foot bone center portion 17, the toe portion 3 and the inner and outer treading portions 5 and 7 are made of non-molded parts, and the cup portion 15 from the inner and outer non-treading portions 9 and 11 to the heel portion 13 and the middle foot bone center portion 17 are made of integrally molded parts. While the toe portion 3 and the inner and outer treading portions 5 and 7 of the inner sole intermediate molded product 1 are positioned in the lower die of a partial molding machine, recessed and projected portions are formed in desired positions in the toe portion 3 and the inner and outer treading portions 5 and 7. An upper die composed of a plurality of divided upper dies is lowered, and recessed and projected portions are integrally formed in the front side by the associative working of the lower and upper dies.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermediate molded article of an inner sole, in which the shape of a foot part of a shoe can be processed immediately according to the purpose of use of each user, a method of manufacturing the inner sole, and a method of manufacturing the same. It relates to a partial molding machine.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional inner sole 101 is formed by a commonly used molding machine using a toe portion 103, inner and outer step portions 105 and 107, and an inner and outer non-step portion. It is known that the cup part 115 from 109,111 to the heel part 113 and the metatarsal central part 117 are integrally molded. In the inner sole 101, the toe 1
03, the inner and outer tread portions 105 and 107 do not have the uneven portion.

The toe 103, the inner and outer treads 10
Inner sole 101 having uneven portions at 5,107
Is designed to have a limited mold in advance, and to use this mold to have an uneven portion in the toe portion 103 and the inner and outer tread portions 105 and 107. In addition, the concavo-convex portion is separately manufactured, and is bonded to the toe portion 103 and the inner and outer tread portions 105 and 107 with an adhesive.

[0004]

By the way, in the above-described conventional limited molds, the toe portion 103 and the inner and outer tread portions 105, 107 are integrally molded with the concave-convex shape portion. Was manufactured in advance according to the size and position of the uneven portion in the inner sole, so many types had to be prepared according to the situation of each individual foot, and there was a problem in terms of cost. . Also, in the case where a pad having an uneven portion is to be bonded later, a pad suitable for each user must be prepared in advance, and the alignment at the time of bonding is very difficult. There were problems with the durability of the force and the hardness difference between the pad and the sole boundary.

Further, even if the shape and position of the inner sole are determined according to the situation of each user, since the attachment is often performed by hand bonding by eye measurement, there is a problem in that the position of the inner sole is low and the precision is low. Was.

There is a problem in the reproducibility of mounting the same device at the same position at the time of replacement due to wear or the like, even if the device is initially mounted at the desired position.

[0007] Therefore, only a limited shape is provided on the market, and it is very difficult to provide an inner sole suitable for each user.

SUMMARY OF THE INVENTION An object of the present invention is to provide an intermediate molded product of an inner sole, a method of manufacturing an inner sole, and a partial molding machine therefor, which can be processed and provided immediately according to the situation of each user. It is in.

[0009]

In order to achieve the above object, an intermediate molded article of the inner sole according to the present invention according to the first aspect comprises a toe portion on the foot contact surface, an inner and outer stepped portion, and a central portion of the metatarsal bone. , An inner / outer stepped portion and a heel portion, at least a part of each of the portions being an unmolded portion, and the remaining portion being a molded portion.

Therefore, instead of integrally molding at least a part of each of the parts having the concave-convex part in advance with the remaining part, the remaining part is integrally molded in advance, and the at least part is unmolded. As an intermediate molded product of the inner sole. Therefore, in order to mold at least a part of the uneven shape part that was unique to each user, it was processed in front of the user, the installation was confirmed, and if there was a defect, this was corrected accurately by numerical values Provided.

According to a second aspect of the present invention, there is provided an intermediate molded article of the inner sole according to the first aspect of the present invention, wherein the toe portion, the inner / outer step portion, the central portion of the metatarsal, and the inner / outer stepped portion are provided. The constituent material of the part and the heel part is a synthetic leather, a natural leather, a synthetic rubber, a foam, or a thermoplastic material.

Therefore, the components of the toe, the inner and outer treads, the central part of the metatarsal, the inner and outer non-steps, and the heel are as follows:
Depending on the user, synthetic leather, synthetic paper, natural leather, synthetic rubber, foam, or thermoplastic material is appropriately selected and used.

According to a third aspect of the present invention, there is provided the intermediate molded article of the inner sole according to the first aspect, wherein the component material of the unmolded portion and the component material of the molded portion are the same kind of multilayer. Alternatively, it is characterized by being a heterogeneous multilayer.

Therefore, as the constituent material of the unformed part and the constituent material of the molded part, the same kind of multilayer or different kind of multilayer is selected and used according to the user.

According to a fourth aspect of the present invention, there is provided a method of manufacturing an inner sole, comprising: a toe portion on a foot contact surface, an inner and outer tread portion, a metatarsal central portion, an inner and outer treadless portion, and a heel portion. At least a part of the unmolded part, the remaining part of the unmolded part of the intermediate molded product of the inner sole constituted by the molded part, in a state where it is positioned in the lower mold of the partial molding machine,
Lower the upper mold consisting of a plurality of divided upper molds to mold the uneven part at the desired position of the unmolded part, and integrate the uneven part with the unmolded part by the cooperation of the lower mold and the upper mold. It is characterized by being molded.

Therefore, the unmolded part of the intermediate molded product of the inner sole, in which at least a part of each part is an unmolded part and the remaining part is a molded part, is positioned in the lower mold. In this state, the required divided upper mold is selected from the plurality of divided upper molds, and by lowering the upper mold, the uneven shape is formed at a desired position of the unmolded portion by cooperation of the lower mold and the upper mold. The part is molded.

[0017] In order to mold the irregular shape for each user, processing is carried out in front of the user, the mounting is checked, and if there is a defect, this is corrected accurately by numerical values. Provided.

According to a fifth aspect of the present invention, there is provided a partial molding machine comprising:
A lower mold having a positioning portion for positioning the unmolded portion of the intermediate molded product of the inner sole, an upper mold including a plurality of split molds for molding at least the uneven portion, and vertically moving the upper mold with respect to the lower mold And a driving means having a handle to be moved.

Therefore, the unmolded portion of the intermediate molded product of the inner sole is positioned at the lower die positioning portion. In this state, an upper mold composed of a plurality of split molds having at least a split upper mold for forming the concave-convex shape portion is selected, and the cooperation of the selected upper mold and lower mold is driven by turning a handle. By means of this means, an uneven portion having a required shape is integrally molded at a desired position of the unmolded portion.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Referring to FIG. 1, the intermediate molded product 1 of the inner sole has a toe portion 3, inner and outer tread portions 5, 7, a cup portion 15 from the inner and outer non-step portions 9, 11 to the heel portion 13, and And a metatarsal central part 17. The toe portion 3, the inner and outer tread portions 5, 7 are unformed portions, and the cup portion 15 from the inner and outer non-step portions 9, 11 to the heel portion 13 and the metatarsal central portion 17 are molded in advance by a molding machine. Is what it is. The components of the toe portion 3, the inner and outer tread portions 5, 7, the inner and outer non-step portions 9, 11 to the heel portion 13, and the metatarsal central portion 17 are synthetic leather and synthetic paper. , Natural leather, synthetic rubber, foam and thermoplastic material. In addition, the toe portion 3, the inner and outer tread portions 5,
7 and the components of the cup portion 15 from the inner and outer non-stepped portions 9 and 11 to the heel portion 13 and the central portion of the metatarsal portion 17 are a composite material structure composed of the same kind of multilayer or different kinds of multilayers. No problem.

Next, using the inner-sole intermediate molded product 1 shown in FIG. 1, an uneven portion 19 is integrally formed on the inner and outer tread portions 5, 7 as shown in FIG. Thus, the completed inner sole 21 is easily and easily manufactured.

In order to produce the completed inner sole 21, the inner sole 21 can be produced by using a partial molding machine 23 as shown in FIG. In FIG. 3, the partial molding machine 23 has a base 25.
The lower die 27 is set on the base 25. A post 29 is erected on the base 25, and an upper frame 31 is mounted on the post 29.

A screw 33 is screwed up and down substantially at the center of the upper frame 31, and a handle 35 is integrated with the screw 33. An upper die 37 corresponding to the lower die 27 is attached to a lower portion of the screw 33. Moreover, the upper frame 31 and the upper die 37
Is provided with a detent rod 39 extending in the vertical direction. The detent rod 39 serves as a detent so that the upper die 37 does not rotate with respect to the upper frame 31.

The lower mold 27 and the upper mold 37 have a built-in heater for heating, or have one of the lower mold 27 and the upper mold 37 have a built-in heater. Instead of providing a heater inside, the intermediate molded product 1 of the inner sole may be pressurized and molded while being warmed.

FIGS. 4A, 4B, and 4 C show the lower mold 27.
As shown in (C), a positioning portion 43 is provided inside the frame 41, and the toe portions 3, the inner and outer tread portions 5, 7 of the intermediate molded product 1 of the inner sole are positioned in the positioning portion 43. By doing so, the positioning set is facilitated. The upper die 37 is placed in a frame 45 shown in FIG. For example, as shown in (D), for example, twelve divided molds 47A to 47L and a molding mold 51 on which an uneven portion 49 is formed are put. Moreover, the molding die 5
By changing the position of No. 1, three patterns are formed. Therefore, a plurality of patterns can be formed by changing the position of the molding die 51 in various ways. Further, the uneven portion 49 may be formed in various shapes such as a rectangle and an asterisk, instead of a circle, or may be used by forming the uneven portion 49 on a plurality of molds with one piece.

According to the above configuration, for example, one pattern is selected from the lower mold 17 from FIGS. 5B, 5C, and 5D, and the selected upper molds 47A to 47L and 51 are connected to the lower mold 17. As shown in FIG. 6 in cooperation with the mold 27, the toe portions 3, the inner and outer tread portions 5, 7 of the intermediate molded product 1 of the inner sole are provided.
Can be formed into a shape and a position suitable for each user's foot in front of the user, and the completed inner sole 21 as shown in FIG. 2 can be checked by wearing. . In addition, if there is a defective portion, it can be corrected and provided with several defective portions. Also,
The shape of the uneven portion 19 in the inner sole 21 has a medical correcting effect and effects of shock absorption, heat retention, and antibacterial.

FIG. 7 shows another embodiment of the intermediate molded product 1 of the inner sole. In this example, the inner and outer tread portions 5 and 7 and the non-molded portion 53 of different materials are added to the inner and outer tread portions 5 and 7.
May be placed and molded.

As shown in FIG. 8, the toe portion 103, the inner and outer tread portions 105 and 107, and the inner and outer tread portions 1 are provided.
Inner sole 101 integrally formed with cup portion 115 from 09, 111 to heel portion 113, and metatarsal central portion 117
The same thing can be obtained by attaching the unmolded portion 53 made of the same material or a different material to the inner and outer tread portions 105 and 107 by heat or by integrally molding.

In the embodiment of the invention described above, the toe portion,
Although the inner and outer treads have been described as the unformed part, the metatarsal central part, the inner and outer irregular parts, and the heel as the molded part,
Toe, inner and outer treads, metatarsal central part to unmolded part,
The inside and outside stepped part and the heel part in the molded part, or the metatarsal central part and the inside and outside stepped part in the unformed part, the toe part, the inside and outside stepped part and the heel part in the molded part, or Central part of metatarsal bone, inner and outer stepped part, heel part as unformed part, toe part, inner and outer stepped part as molded part, and toe part, inner and outer stepped part, heel part as unformed part Furthermore, the same operation and effect can be obtained in the above-described manner by using the inner and outer stepping portions and the central portion of the metatarsal as molded portions.

The present invention is not limited to the above-described embodiment, but can be embodied in other forms by making appropriate changes.

[0032]

As will be understood from the above description of the embodiments of the present invention, according to the first aspect of the present invention, at least a part of each of the portions having the concave-convex portion in advance is replaced with the remaining portions. Instead of molding integrally, the remaining part was integrally molded in advance, and the at least part was left as an unmolded part to obtain an intermediate molded article of the inner sole. Thus, in order to mold at least a part of the uneven shape portion that was individual for the user,
Processing in front of the user, you can check the installation,
If there is a defect, it can be corrected and provided with numerical values.

According to the second aspect of the present invention, the constituent materials of the toe portion, the inner and outer tread portions, the central portion of the metatarsal, the inner and outer non-step portions, and the heel portion are made of synthetic leather or synthetic leather according to the user. Paper, natural leather, synthetic rubber, foam or thermoplastic material can be appropriately selected and used.

According to the third aspect of the present invention, the constituent material of the unformed part and the constituent material of the molded part can be selected from the same type of multilayer or different types of multilayer depending on the user.

According to the invention of claim 4, at least a part of each part is an unmolded part, and the remaining part is an unmolded part of an intermediate molded product of the inner sole, which is constituted by a molded part integrally molded. Position it on the lower mold. In this state, the required divided upper mold is selected from the plurality of divided upper molds, and by lowering the upper mold, the uneven shape is formed at a desired position of the unmolded portion by cooperation of the lower mold and the upper mold. The part is molded.

[0036] In order to mold the irregular shape for each user, it can be processed in front of the user and the installation can be confirmed, and if there is a defect, this is accurately corrected by numerical values. Can be provided.

According to the fifth aspect of the invention, the unmolded portion of the intermediate molded product of the inner sole is positioned at the lower die positioning portion. In this state, the driving means is selected by selecting an upper mold from a plurality of divided molds having a divided upper mold for molding at least the concave-convex portion, and turning the handle in cooperation with the selected upper mold and lower mold. By doing so, it is possible to integrally mold a concavo-convex portion having a required shape at a desired position of the unmolded portion.

[Brief description of the drawings]

FIG. 1 is a perspective view of an intermediate molded product of an inner sole obtained by the present invention.

FIG. 2 is a perspective view of a completed inner sole obtained by molding an intermediate molded product of the inner sole shown in FIG. 1;

FIG. 3 is a perspective view of a partial molding machine embodying the present invention.

4 (A), (B) and (C) are perspective views of a lower mold used in the partial molding machine of FIG. 3;

5 (A), (B), (C) and (D) are perspective views of an upper mold composed of a plurality of split molds used in the partial molding machine of FIG. 3;

FIG. 6 is a perspective view showing a state in which the toe portion and the inner and outer step portions of the inner-sole intermediate molded product are molded by the partial molding machine shown in FIG. 3;

FIG. 7 is a perspective view of another example of an intermediate molded product of the inner sole.

FIG. 8 is a perspective view of a conventional inner sole with a step formed portion made of the same material or a different material integrated with the inner and outer stepped portions.

FIG. 9 is a perspective view of a conventional inner sole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Intermediate molded product of inner sole 3 Toe part 5 Inner step part 7 Outer step part 9 Inner step part 11 Outside step part 13 Heel part 15 Cup part 17 Metatarsal central part 19, 49, 53 Irregular shape part 21 Completed Inner Sole 23 Partial Molding Machine 27 Lower Die 35 Handle 37 Upper Die 41 Positioning Part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F050 AA01 AA06 BA03 BA55 EA11 HA53 HA55 HA73 HA85 KA10 KA11 KA16 LA01 LA02 NA52 NA54 NA72

Claims (5)

[Claims] 1. A toe portion on the foot contact surface, an inner and outer step portion, a metatarsal central portion, an inner and outer stepless portion, and a heel portion, at least a part of each of the portions being an unmolded portion, An intermediate molded article of the inner sole, characterized in that the remaining part is constituted by a molded part. 2. The constituent material of the toe portion, the inner and outer tread portions, the central portion of the metatarsal bone, the inner and outer non-step portions and the heel portion is made of synthetic leather, natural leather, synthetic rubber, foam or thermoplastic material. The intermediate molded article of the inner sole according to claim 1, wherein: 3. An intermediate molded article of an inner sole according to claim 1, wherein the constituent material of the unformed portion and the constituent material of the molded portion are of the same type or different types. 4. A toe portion on the foot contact surface, an inner and outer tread portion, a middle metatarsal portion, an inner and outer non-step portion, and a heel portion, at least a part of each of the portions being an unmolded portion, In order to mold the uneven part at a desired position of the unmolded part, with the remaining part being positioned in the lower mold of the partial molding machine, while the unmolded part of the intermediate molded product of the inner sole composed of the molded part is positioned. A method for manufacturing an inner sole, comprising: lowering an upper mold including a plurality of divided upper molds, and integrally forming an uneven portion on the unmolded portion by cooperation of the lower mold and the upper mold. 5. An upper mold having a positioning portion for positioning an unmolded portion of an intermediate molded product of an inner sole, an upper mold comprising a plurality of split molds for molding at least a concave-convex shape portion, and And a driving means having a handle for moving up and down with respect to the mold.