JPS635702A - Mold for molding shoe sole - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a protrusion made of a plurality of layers made of a plurality of desired different materials by sequentially injecting, injecting or rolling the main material of the shoe sole and the material of the protrusion. This invention relates to a mold for manufacturing shoe soles.

<Prior art> A conventional shoe sole molding die for manufacturing a shoe sole with protrusions made of a plurality of composite layers using a plurality of different materials includes an upper mold and a lower mold of 2[i] as shown in FIGS. The lower mold 0 has a recess d having a width that accommodates the protrusion of the second upper mold that pressurizes the sole with a protrusion, and the recess of the lower mold α μs) is formed, and the required amount of protrusion material is injected, injected, or fed into the cavity by ν to form the protrusion, and then the first upper mold (2) is removed. The problem to be solved> The above-mentioned conventional shoe sole mold has a first upper mold (9) and a lower mold g4.
The material for the protrusion is supplied into the cavity (15) in the shape of a protrusion and envelope formed by the second upper mold (! The material for the main part of the sole is supplied into the cavity of the main part of the shoe sole, but in either case, the protrusion part and the main part of the sole are bonded and molded by filling each cavity or by foaming pressure of each material. Because it is not too thick, the bonding of these multiple layers is not sufficient (there is a risk of peeling). ,1
(7) and the concave part σ3) of the lower mold do not match, the protruding part of the seam around the joint between the protruding part and the main part of the sole bulges out, and the removal of the protruding part) ζ is defective. Ta.

Means for Solving Problems> The present invention provides a concave portion having a bottom surface (1) in the shape of the bottom surface of the sole main portion (A) on the − surface side, for example, the top surface side, as shown in FIGS. (2), and a convex portion (8) in the shape of the upper surface of the sole main portion 6) on the − surface, for example, on the lower surface side.
and a second mold (b) forming a cavity (4) in the shape of the main part of the shoe sole between the recess (2) of the second mold (a);
If the negative surface side is aligned, a fourth part (6) having a bottom surface (5) in the shape of the protruding part of the sole is formed on the lower surface side.
) and a protrusion-shaped cavity (
7), and then apply a protrusion material (
c) the supply recess (8) and each channel (
9), and the recess (8) of the third mold (C) on the - side, for example, the lower surface side, form a convex part α@ for pressurizing the protruding portion material). The main part of the sole (a) and the protruding part (b) are firmly connected by applying pressure, especially with the fourth mold (d), using a sole molding mold consisting of a fourth mold (d), etc. be.

Functions and Effects> The shoe sole forming mold hole of the present invention is capable of supplying the protruding portion material (through the first mold (a) and the second channel (9)) by known means such as injection, injection, or feeding. , Finally, pressurize the convex part of the fourth mold (d) (1@ to the protrusion material in the supply recess (8)) and feed the protrusion material) into each channel (9) and cavity (A). The protruding portion (b) is molded in close contact with the main portion (a) of the sole by pressing it against the negative side, for example, the bottom side. Therefore, these protruding parts (b) and the main part of the sole (
It is possible to provide a shoe sole (B) with a protrusion that is firmly and integrally bonded with (a) and that does not easily peel off, such as a known one that is bonded simply by the foaming pressure of the material.

<Example> The method of using the mold for forming a shoe sole of the present invention to produce a shoe sole with projections according to the drawings is as follows.

The mold holes for forming the sole of the shoe are shown in Figure 2, etc.)
ζ, the -th type (a) to the fourth type (d) are each formed as independent and separate parts, and first the -th type (,) and the second type (b) are formed.
These two molds (, ) and (b) are fixed together to form a cavity (4) in the main body of the shoe sole, and an unfoamed foaming liquid is poured into the cavity (4) of the main body of the shoe to make it flexible. Shoe sole mainly made of urethane or uncrosslinked synthetic resin solution? 9 is injected or injected by known means to mold the sole main part (A) in the cavity (4), and the third mold (C) is used in place of the second mold (a). The protruding side surface of the convex part (3) of b) is abutted and fixed, and the second mold (b) and the third mold are connected through each channel (9) from the supply recess (8) of the third mold (C). The protruding portion between the third mold is injected, and the protruding portion material in the recess (8) of the third mold (C) is injected into the recess (8) by the convex portion of the fourth W(d). ) and pressurizes the cavity (γ) from inside each channel (9).

<Another Embodiment> In addition to the mold for forming the shoe sole of the above-described embodiment shown in FIGS. 2 I to V, the present invention provides at least a second mold as shown in FIG. (b) and third type (c) or second type (b) to fourth type (d) t'), for example, a known connecting device such as a hinge (
e) etc. Further, the material for the sole main portion and the material for the protruding portion to be supplied may be an unfoamed liquid polyurethane-mixed rubber material.

4. Description of the Drawings Figures I to V are schematic diagrams showing the main structure of a conventional shoe sole mold, and ■ is a cross-sectional view of the mold.
2 to Y are examples of cross-sectional views showing how to use the same.

FIGS. 2 I to V are schematic diagrams showing the basic shoe sole molding mold of the present invention, and ■ is a cross-sectional view showing its main structure;
3 to 5 are examples of cross-sectional views showing how to use the same.

FIGS. 3I and 3 are schematic illustrations of the slopes of a mold for forming a shoe sole according to another embodiment of the present invention. FIG. 4 is a schematic side view, partially cut away, of a shoe sole with projections manufactured by the shoe sole molding die of the present invention.

(Drawing code) (4)...Mold for forming shoe soles, (6)...
...Soles with protrusions, (a) ..... Type -, (b) ..... Second type, (C) .... ...Third type, (d)...Fourth type, (e)...Connector, (2), (5)...・・・・・・Bottom, (2),
(6')・・・・・・Concavity, Ron, Scream...
...Protrusion, (4), (7) ...Cavity, (8)
・・・・・・・・・・・・・・・Dent, (,9'l...
·············Channel,······
・・・・・・・・・・・・ 0 or more 3 sides■ Procedural amendment (voluntary) November 1st, 1985, Incident indication 1988 Patent application No. 150760 Shoe sole mold 3 , Person making the amendment Relationship to the case Patent applicant 4 Detailed explanation of the invention in the specification to be amended Contents of the amendment Amended the specification attached to the application (submitted on June 26, 1986) as follows. I will do it.

(1) The Detailed Description of the Invention column in the above specification will be corrected as follows.

■The entire text from page 3, line 1 to page 4, line 20 has been corrected as follows.

The required amount of material for the protrusion is injected, injected or fed into the cavity to form the protrusion, and then the first upper mold (1'D) is removed and the second upper mold (11J is Instead, the protruding portion in the second upper mold (the recess 03 of the lower mold α→ by abutting and fixing the country and the lower mold (14)) and the second upper mold (18)
) between the convex portion (17) of the sole main body portion (
19), and the sole main portion material was supplied into the cavity (19) by a supplying means such as injection, injection, or feeding.

) <Problem to be solved by the invention> The above-mentioned conventional shoe sole molding mold has a first upper mold (1°C and a lower /
or. , a cool orchestra. Yaya, Kay. ) Kaa.

The projection portion material is supplied, and the second upper mold (18) and the lower mold (
14) and its recess 03) into the sole-shaped cavity (19) formed between the protrusions, etc. in the recess 03). Because the protruding portion and the sole main portion are not bonded too much due to the filling or foaming pressure of each material, there is a risk that the bonding portions of these multiple layers may not be sufficient and may easily peel off. Each convex part (2) of the rain type (11) and (18)
), 07) and the lower mold's four parts 03), a protruding part bulges out around the joint between the protruding part and the main part of the sole, and it takes time and effort to remove the protruding part. Ta.

<Means for solving the problem> As shown in FIG. 2) a first type (a) that does not form a shape, and a convex portion (3) in the shape of the upper surface of the sole main portion (a) on the - side, for example, on the lower surface side;
and a second mold (b) forming a cavity (4) in the shape of the main part of the sole between the recess (2) of the first mold (a);
and forming a fourth part (6) having a bottom surface (5) in the shape of the protrusion of the sole on the - side, for example, the bottom side, and forming the second type (b).
) and a protrusion-shaped cavity (A) is formed between the sole main part (A) molded in the second mold (b) and the recess (6), and further on the other side, for example, on the upper side. The supply recess (8) for the protrusion material (c), and the supply recess (8) and the protrusion-shaped cavity (a)

Claims (1)

[Scope of Claims] A first type having a concave portion having a bottom surface shaped like the bottom of the main body of the sole on one side, for example, the upper side, and a convex portion having the shape of the top of the main body of the sole on one side, for example, the bottom side. a second mold having a cavity shaped like the main part of the shoe sole between the recess of the first mold, and a recess having a bottom surface shaped around the protrusion of the sole on one side, for example, the lower surface side. and a cavity shaped like a protrusion is formed between the second mold and the main body of the shoe sole on the convex part of the second mold, and the concave part, and further a recess for supplying the protrusion material on the other surface side, for example, the upper surface side; A third mold is formed with a channel that connects the supply recess and the protrusion-shaped cavity, and a third mold is formed with a convex portion that presses the protrusion material between the recess of the third mold on one side, for example, the lower surface side. A mold for forming shoe soles consisting of four molds, etc. 1. The shoe sole molding mold according to claim 1, wherein the first to fourth molds of the shoe sole molding mold are formed as independent and separate pieces. 2. The sole molding mold according to claim 1, wherein at least a second mold and a third mold, or the third mold and the fourth mold are connected by a connecting member. Mold for forming shoe soles.