JPH11318507A - Shoe sole for golf shoes and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide shoe soles for golf shoes by reducing the weight of the shoe soles and improving cushion propriety thereof. SOLUTION: Heel inserts A, B, C formed by pressing fixing boards 2 to the tops and bottoms or the bottoms of heel cores 1 hermetically molded hollow of plastic and placing buffer materials 3 on the tops of the heel cores 1 are fixed to the heel parts of a shoe sole molding gap formed by a shoe sole mold, a frame mold and a last lasting an innersole 6 and uppers 13 in direct injection molding. The shoe soles are simultaneously injection molded by injecting a synthetic resin into the molds.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe sole of a golf shoe in which the heel portion of the golf shoe is reduced in weight and the cushioning property is improved, and a method of manufacturing the sole.

[0002]

2. Description of the Related Art Conventionally, in order to reduce the weight of a golf shoe, a wooden core or a core of a thermoplastic resin foam is buried in a heel portion, or a plurality of hollow portions are formed in the heel portion as shown in FIG. A part made of a thermoplastic resin provided with a partition wall (19) for partitioning is inserted into a concave part (18) provided in a heel part, and a foam (20) is placed on the part or the upper surface of the heel part is removed. It has been common practice to provide a partition wall that opens and partitions the inside of the heel portion into a plurality of hollows, and is formed integrally with the entire shoe sole.

[0003]

A wooden core is buried in the heel portion, a part for dividing the inside of the heel portion into a plurality of hollows is inserted into a recess provided in the heel portion, and the inside of the heel portion is formed into a plurality of hollow portions. The one provided with ribs for partitioning and integrally molded with the entire shoe sole is lighter, but impairs cushioning and shock absorption. In the case where the core material of the thermoplastic resin foam was embedded, the core material was compressed and deformed with use, which also impaired cushioning and shock absorption.

[0004]

Therefore, according to the present invention, a plastic hollow is formed in a heel portion of a shoe sole forming gap formed by a shoe sole mold, a frame mold, an insole, and a last in which an upper is suspended. A fixed board is abutted above or below or below the hermetically-sealed heel core, a heel insert with a cushioning material placed on top of the heel core is fixed, and a thermoplastic resin or a polyurethane foam resin is injected to form a shoe sole. It is molded and integrated with the insole and upper shell.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The sole of a golf shoe according to the present invention has a fixed board abutting on the upper and lower sides or below a heel core hermetically sealed with plastic, and a cushioning material is provided on the upper surface of the upper fixed board or heel core. The mounted heel insert is embedded in the heel, and is integrally formed with the insole and the upper by a direct injection molding method using a shoe sole mold having or not having a spike insertion hole. In addition, in order to improve cushioning and shock absorbing properties, it is preferable to pierce the midsole of the molded golf shoe at the portion corresponding to the lower part of the calcaneus and to fit the shock absorbing member. The above components can be optimally combined and the specifications of the components can be changed according to the molding conditions of the injection molding resin, the purpose of use, and the like. Hereinafter, details of each component, a shoe sole of a golf shoe in which a heel insert combining them is embedded in a heel, and a method of manufacturing the sole will be described.

In the heel core according to the present invention, a parison such as a thermoplastic elastomer such as a thermoplastic polyurethane resin, a polyvinyl chloride resin, or a polyamide elastomer, or a parison such as a general-purpose thermoplastic resin such as polypropylene is inserted into a two-piece heel core molding die. Then, after forming by a blow molding method, the gate hole is heat-sealed and sealed. The shape of the heel core is substantially similar to the shape of the heel portion of the shoe sole, the size of which is smaller at the periphery, and the center portion 1 of the upper and lower surfaces of the heel core.
The recesses are formed so as to face each other at a plurality of places.
If the shape of the concave portion is a truncated cone and the tops are in contact with each other, deformation due to injection pressure during molding can be reduced and cushioning can be improved. In addition, it is preferable to bond a rib of synthetic resin for positioning the fixed board or the cushioning material to be placed on the heel core, or to simultaneously mold by blow molding so that the rib projects from the upper surface of the heel core. In addition, the work of positioning the fixed board or the cushioning material can be efficiently performed.

[0007] The fixed board that comes into contact with the upper, lower, or lower part of the heel core is a heat-resistant resin or nonwoven fabric or a pulp board formed into a hard or semi-rigid sheet. In addition to preventing deformation and melting of the heel core caused by resin injected from the gate at the center of the bottom of the heel cavity of the mold, the heel cavity functions to disperse a thrust-up load from below after molding. The fixed board on the heel core serves to prevent the resin from flowing into the concave portion of the heel core, preventing deformation and melting, and dispersing the load from above the heel. In addition, if the convex portions corresponding to the concave portions of the heel core are provided on the upper and lower fixing boards by press molding or die molding so as to be fitted into the concave portions of the heel core, the positioning of the fixing board becomes easy.

The cushioning material placed on the upper part of the heel core is made of a lightweight and elastic plastic sheet such as hard foamed polyurethane, so that the injection pressure load from below during injection molding can be reduced, and the heel insert can be used. In addition to preventing misalignment and deformation, the impact on the soles after molding is reduced. Further, the heel core and the cushioning material can be integrated as follows. The heel core is formed so as to have a smaller peripheral shape than the heel core, and the periphery of the heel core is injected and covered with a hard foamed polyurethane resin to form a urethane-coated heel core. If the upper part of the urethane-coated heel core is formed thick or the upper part is formed to be convex as if the cushioning material is placed, the cushioning material placed on the heel core can be omitted.

[0009] The shock absorbing member to be attached to a portion of the upper surface of the heel insert corresponding to the lower portion of the calcaneus is a shock absorber such as a sponge or a viscoelastic polyurethane elastomer. The part corresponding to the lower part was punched out, the inner bottom fitted in the hole punched out punched piece was attached to the last, and when removing the last after injection molding, after removing the punched piece,
A shock absorbing member that fits into the hole punched in the insole is fitted. In addition, the punching of the insole is one foot longer than the heel end of the sole.
It is punched out in a circular shape with a diameter of 20 to 35 mm centered at the position of 5 to 17%, a semicircle with a diameter of 20 to 35 mm on the heel end side, and a horseshoe shape with a rectangular tip side, and a cross-sectional shape of an inverted trapezoid.

[0010] The spike used in the present invention comprises a spike pin and a nut. Regardless of whether the spike pin is of a fixed type or a replaceable type, the nut portion embedded in the shoe sole is formed by injection molding of a thermoplastic resin in advance. The thermoplastic resin is preferably the same as the injection-molded resin of the shoe sole, or a resin that is melt-bonded to the injection-molded resin of the shoe sole. In addition, the spike molded product has a flat flange seating surface on an upper surface of a nut, three or more pin-shaped fall prevention projections provided downward on a circumferential portion of the nut, and a spike pin formed by a spike of a shoe sole mold. When fitted into the insertion hole, it is preferable that the tip of the fall prevention protrusion contacts the shoe sole mold.

In order to manufacture the sole of the golf shoe of the present invention by the direct injection molding method, a thermoplastic resin such as a polyurethane resin, a polyvinyl chloride resin or a polyamide resin to which a relatively large molding pressure and heat is applied is injected. In this case, the combination of the components and the method of fixing the components are different depending on whether or not to inject a foamed polyurethane resin to which a relatively small molding pressure and heat are applied.

Polyurethane resin, polyvinyl chloride resin,
When injecting thermoplastic resin such as polyamide resin,
Insert the spike into the spike insertion hole provided on the bottom surface of the heel cavity of the shoe sole mold, clamp the heel core from above and below on the flange seat surface of the spike, and place cushioning material on the upper surface of the upper fixed board. The placed heel insert or the heel insert in which the fixed board, the heel core, and the cushioning material are sequentially laminated are placed. Next, the insole and the upper are suspended from the last by a conventional method, and a shank made of steel, synthetic resin, or the like is attached to the arch of the insole, and the last is opposed to the shoe sole mold. Next, after closing the frame mold, the last is lowered to seal the shoe sole shape, and the spike is clamped between the flange seating surface of the spike and the midsole so that the heel insert does not shift due to the injection pressure of the resin. Then, by injecting a thermoplastic resin from the gate at the center of the bottom of the heel cavity, the shoe sole and the upper are simultaneously integrally formed.

The shock absorbing member is attached by punching a portion corresponding to the lower portion of the calcaneus of the midsole so as to have an inverted trapezoidal cross section, and then fitting the punched piece into a hole formed by punching. At the time of the last removal after the injection molding, the punched piece is removed, and then a shock absorbing member having the same shape as the hole formed by punching out the inner bottom is fitted. Or,
The part corresponding to the lower part of the calcaneus of the midsole is punched out so that the cross section is inverted trapezoidal shape, the midsole fitted to the hole where the punched piece was punched is attached to the last, and it matches the hole where the midsole was punched The cushioning material having the hole formed therein is placed on the heel core, and after removing the punched pieces, a shock absorbing member that fits the hole formed by punching the insole and the hole of the cushioning material is fitted.

In the case of injecting a foamed polyurethane resin, the method of producing the spike is different from that of the resin having a spike. For those having a spike, a spike is inserted into a spike insertion hole provided on the bottom surface of the heel cavity of the shoe sole mold, and a fixing board, a heel core, and a cushioning material are sequentially laminated on the flange seating surface of the spike, or a heel insert or a cushioning material. Then, a heel insert in which a fixing board and a urethane-coated heel core are sequentially stacked is placed. Next, the insole and the upper are suspended from the last by a conventional method, and a shank made of steel, synthetic resin, or the like is attached to the arch of the insole, and the last is opposed to the shoe sole mold. Next, after closing the frame mold, the last is lowered to seal the shoe sole shape, and the spike is clamped between the flange seating surface of the spike and the midsole so that the heel insert does not shift due to the injection pressure of the resin. Then, by injecting foamed polyurethane resin from the gate at the center of the bottom surface of the heel cavity, the shoe sole and the upper are simultaneously integrally formed.

The shock absorbing member is attached by punching a portion corresponding to the lower part of the calcaneus of the midsole so that the cross section has an inverted trapezoidal shape. At the time of the last removal after the injection molding, the punched piece is removed, and then a shock absorbing member having the same shape as the hole formed by punching out the inner bottom is fitted. Or,
The part corresponding to the lower part of the calcaneus of the midsole is punched out so that the cross section is inverted trapezoidal shape, the midsole fitted to the hole where the punched piece was punched is attached to the last, and it matches the hole where the midsole was punched The cushioning material having the hole formed therein is placed on the heel core, and after removing the punched pieces, a shock absorbing member that fits the hole formed by punching the insole and the hole of the cushioning material is fitted.

For those without spikes, first, the insole and instep are hung on the last by a conventional method, and a shank such as steel or synthetic resin is attached to the arch of the insole, and the last is formed into a shoe sole mold. Make them face each other. Next, a heel insert, in which a fixed board is pre-bonded under the heel core and a cushioning material is pre-bonded and integrated on the heel core, is bonded to the heel portion of the midsole attached to the last. Next, after closing the frame mold, the last is lowered to seal the shoe sole shape. Then, by injecting foamed polyurethane resin from the gate at the center of the bottom surface of the heel cavity, the shoe sole and the upper are simultaneously integrally formed.

The shock absorbing member is attached by punching a portion of the midsole corresponding to the lower part of the calcaneus so that the cross section has an inverted trapezoidal shape. At the time of the last removal after the injection molding, the punched piece is removed, and then a shock absorbing member having the same shape as the hole formed by punching out the inner bottom is fitted. Or,
The part corresponding to the lower part of the heel bone of the midsole is punched out so that the cross section becomes an inverted trapezoidal shape, and the midsole fitted with the punched piece into the hole that was punched is attached to the last, matching the hole that punched the midsole The cushioning material having the hole formed therein is placed on the heel core, and after removing the punched pieces, a shock absorbing member that fits the hole formed by punching the insole and the hole of the cushioning material is fitted.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a heel insert in which a heel core is sandwiched between upper and lower fixed boards and a cushioning material is placed on the upper surface of the upper fixed board. FIG. 2 is a cross-sectional view of a heel portion of a shoe sole with spikes, and FIG. 2 is a heel portion cross-sectional view illustrating a method of manufacturing the shoe sole.

The sole of the present invention shown in FIG. 1 has a shape substantially similar to the shape of the heel portion of the sole, and has truncated conical recesses 8 at four central portions of the upper surface and the lower surface facing each other. 8
The upper and lower surfaces of the heel core 1 in which a parison of polypropylene resin is blow-molded are sandwiched by a fixing board 2 formed by laminating a nonwoven fabric and pressing into a hard board so that the tops of the heel cores 1 are in contact with each other. A heel insert A having a cushioning member 3 of a rigid foamed polyurethane sheet having the same shape as the fixing board 2 and a perforated portion corresponding to the lower part of the calcaneous bone is mounted on the upper surface of the shank 2 on the flange seating surface 12 of the spike 11 and the shank. 17 is attached to the insole 6 and the thermoplastic resin such as a polyurethane resin or a polyamide resin is injected into a shoe-shaped mold, and the components are simultaneously integrally molded. A shock absorbing member 5 such as a rubber sponge that fits into the perforated portion is fitted and adhered.

In the method for manufacturing a shoe sole according to the present invention, as shown in FIG. 2, a spike 11 is fitted into a spike insertion hole e provided on the bottom surface of a heel cavity d of a shoe sole mold D. The spike 11 is formed by injection molding a nut portion buried in the sole of the shoe with a resin that is melt-bonded to the injection molding resin of the sole, and forming four pin-shaped fall prevention protrusions 16 downward on the circumference of the nut. doing. The fall prevention projection 16 can prevent the spike 11 from falling or shifting during injection molding. The heel core 1 is sandwiched from above and below by the fixed board 2 on the flange seating surface 12 of the spike 11, and the heel insert A on which the cushioning material 3 is placed is placed on the upper fixed board 2. The cushioning member 3 is provided with a hole having a diameter of about 30 mm in a portion corresponding to a lower part of the calcaneus. On the other hand, a hole formed by punching out a punched piece 15 into the heel portion of the insole 6 to a diameter of about 30 mm so that the cross section becomes an inverted trapezoidal shape centered on a position 15% of the foot length from the heel end of the shoe sole. The insole 6 and the upper 13 fitted on the insole 6 are hung on the last 14, the shank 17 is attached to the arch of the insole 6, and the last 14 faces the shoe sole mold D. Next, after closing the frame mold E, the last 14 is lowered and sealed in a shoe sole shape. The last 14 is pressed so that the heel insert A is not displaced by the injection pressure of the resin. Next, polyamide resin is injected from the gate f at the center of the bottom surface of the heel cavity d, and the shoe sole and the upper 13 are simultaneously formed integrally. And
At the time of the last removal, after the punched-out piece 15 is removed, the shock absorbing member 5 which fits the hole from which the inner bottom 6 is punched out and the hole of the cushioning material 3 is fitted and bonded.

As shown in FIG. 3, the punching of the insole 6 is a circle having a diameter of 20 to 35 mm centering on a position 15 to 17% of the foot length from the heel end of the shoe sole, or a diameter of 20 to 35 mm on the heel end side. 3
It is a 5mm semicircle, horseshoe shaped with a square tip, and punched out so that its cross section is inverted trapezoidal. By punching in this manner, the inner bottom 6 fitted in the hole in which the punched piece 15 was punched out
When attached to the last 14, the punched piece 15 does not fall. When removing the last 14,
5 can be easily removed.

An example of another shoe sole having no spike 11 will be described with reference to FIG. First, the fixed board 2 is provided under the heel core 1, and the heel insert B having the cushioning material 3 placed on the heel core 1 is bonded and integrated in advance. Next, a punched piece 1 having a diameter of about 30 mm was formed on the heel portion of the insole 6 so as to have a cross section of an inverted trapezoidal shape centered on a position 15% of the foot length from the heel end of the shoe sole.
The midsole 6 and the instep 13 fitted in the hole punched out from the bottom 5 are suspended from the last 14 and the shank 1 is
7 is attached, the heel insert B is bonded to the heel portion of the midsole 6, and the last 14 is opposed to the shoe sole mold D. At the time of bonding the heel insert B, the heel insert B is not bonded to the punched piece 15 of the midsole 6. Next, the frame mold E
Then, the last 14 is lowered to seal the shoe sole shape.
Next, foamed polyurethane resin is injected from the gate f at the center of the bottom surface of the heel cavity d, and the shoe sole and the upper 13 are simultaneously integrally formed. Then, when the last 14 is removed, the punched pieces 15 are removed, and then the shock absorbing member 5 that fits into the hole from which the inner bottom 6 has been punched is fitted and bonded.

FIGS. 5 to 7 show an embodiment of the heel core 1. The heel core 1 shown in FIG. 5 is obtained by inserting a parison made of polypropylene resin into a two-piece heel core molding die, and by a blow molding method. After molding, the gate hole was heat-sealed and sealed. The shape is substantially similar to the shape of the heel portion of the shoe sole, the upper surface and the lower surface are flat, and four portions of the upper and lower surfaces are recessed into a truncated cone shape so that the top of the truncated cone is in contact. The concave portion 8 of the truncated cone is provided at a position corresponding to the flange seating surface 12 of the spike 11 when the heel core 1 is placed in the shoe sole mold D, and the diameter of the top of the truncated cone is approximately 10 mm.

In the heel core 1 shown in FIG. 6, a rib 10 for positioning the fixed board 2 or the cushioning material 3 placed on the upper surface of the heel core 1 is simultaneously formed by blow molding so as to protrude from the upper surface of the heel core 1. It was done. The rib 10 is provided so as to be in contact with the horseshoe-shaped fixing board 2 or the side end of the cushioning material 3 except for the truncated cone-shaped recess 8 on the upper surface of the heel core 1.

The heel core 1 shown in FIG. 7 is a urethane-coated heel core 4 in which a hard foamed polyurethane resin is injected to cover the periphery of the heel core 1 whose peripheral shape is formed smaller than that of the heel core 1 shown in FIG. . The upper portion of the urethane-coated heel core 4 is thickly formed, and the concave portion 7 is formed in conformity with the shape in which the inner bottom 6 is perforated so that the shock absorbing member 5 can be fitted. In the urethane-coated heel core 4, the resin is also filled in the truncated cone-shaped recess 8, so that the recess 8 becomes a drum-shaped pillar, and the vertical deformation resistance is further increased.

FIG. 8 shows a fixed board 2 abutting below or above the heel core 1, and a projection 9 fitted into the recess 8 of the heel core 1.
Is provided. The protrusions 9 may be formed by laminating a nonwoven fabric or a pulp board and molding by press molding, or by molding a thermosetting resin by injection molding. Also, the protrusion 9
May be recessed and formed like the recess 8 of the heel core 1.

In addition to the above, although not shown, the molding conditions of the injection molding resin, the presence or absence of the spike 11, the shock absorbing member 5,
Heel inserts of various configurations and shoe soles in which the heel inserts are buried can be made depending on how to attach the heel insert.

[0028]

As described above, the golf shoe of the present invention has a heel portion in which a heel core formed of plastic and is hermetically sealed is embedded in the heel portion. Further, since the heel core has a hermetic structure, even if the heel core is slightly deformed due to the resin pressure or the last pressure during molding, the volume hardly changes, and the designed weight can be reduced. Further, since the heel core is not largely deformed, the thickness of the heel portion becomes substantially uniform, and the sink after injection molding is prevented.

The heel core of the heel insert serves as a shock absorbing material, and the fixed board has a seismic isolation structure that plays a role in dispersing impacts. Therefore, it is possible to eliminate spikes and maintain stability of the heel. it can. In addition, by placing a cushioning material and a shock absorbing member under the calcaneus,
Cushioning properties can be improved.

The spike is inserted into the spike insertion hole provided in the shoe sole mold, and the heel insert is sandwiched between the flange seat surface of the spike and the last midsole with the midsole attached, or the heel insert is inserted into the last midsole. Is bonded and fixed, and injection-molded into the shape of a shoe sole, so that there is no need for a component or a mold structure for fixing the heel insert.

By forming the ribs on the upper surface of the heel core, the work of positioning the fixed board and the cushioning material placed on the heel core can be performed efficiently.

By providing a convex portion corresponding to the concave portion of the heel core on a fixed board abutting above, below or below the heel core,
The positioning of the fixed board can be easily performed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a heel portion of a shoe sole with spikes in which a heel insert in which a cushion material is placed on the upper surface of an upper fixed board is sandwiched between upper and lower heel cores by a fixed board.

2 is a sectional view of a heel showing a method of manufacturing the shoe sole of FIG. 1;

3 (a) and 3 (c) are plan views showing a punched portion at an insole, and FIG. 3 (b) is a sectional view taken along line XX of FIG. 3 (a).

FIG. 4 is a cross-sectional view of a heel section showing a manufacturing method of forming a shoe sole by adhering a heel insert in which a fixed board is placed under a heel core and a cushioning material is placed on the heel core to a heel part of an inner sole; .

5A is a plan view showing one embodiment of a heel core, and FIG. 5B is a sectional view taken along line YY of FIG.

6A is a plan view in which a rib is provided on an upper surface of a heel core, FIG.
And (b) is a sectional view taken along the line ZZ.

FIG. 7 is a side cross-sectional view of a heel insert using a urethane-coated heel core.

FIG. 8 is a side cross-sectional view showing a state in which a convex portion corresponding to the concave portion of the heel core is provided on the fixed board and fitted to the concave portion of the heel core.

FIG. 9 is a partially cutaway view of a heel portion of a sole of a conventional golf shoe.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 heel core 2 fixing board 3 cushioning material 4 urethane-coated heel core 5 shock absorbing member 6 insole 7 concave portion of urethane-coated heel core 8 heel core concave portion 9 fixing board convex portion 10 rib 11 spike 12 flange seating surface 13 upper cover 14 last 15 punched piece 16 fall prevention projection 17 shank 18 heel recess 19 partition wall 20 foam A, B, C heel insert D shoe sole mold d heel cavity e spike insertion hole f gate E frame mold

Claims (16)

[Claims] 1. A heel core (1), which is made of plastic and hermetically sealed in a hollow, is sandwiched from above and below by a heat-resistant and rigid fixed board (2), and a cushioning material (3) is placed on the upper fixed board (2). A shoe sole of a golf shoe, characterized in that a heel insert (A) on which is mounted is embedded in the heel. 2. A heel in which a heat-resistant and rigid fixed board (2) is abutted under a heel core (1), which is hollow molded from plastic, and a cushioning material (3) is placed on the heel core. A sole for golf shoes, wherein the insert (B) is embedded in the heel. 3. A urethane-coated heel core (4) covered with a hard foamed urethane resin around a heel core (1) which is hollow-molded with plastic and is heat-resistant and rigid under the urethane-coated heel core (4). A shoe sole of a golf shoe, wherein a heel insert (C) abutting a fixing board (2) having the following is embedded in the heel. 4. A shock absorbing member (5) is attached to a portion of the upper surface of the heel insert (A, B, C) which corresponds to the lower part of the calcaneus. The sole of the golf shoe according to 1. 5. A part corresponding to the lower part of the calcaneus of the midsole (6) and the cushioning material (3) is perforated, and a shock absorbing member (5) is fitted into the perforated part. The sole of the golf shoe as described. 6. A portion of the midsole (6) corresponding to the lower part of the calcaneus is drilled, and a recess (7) corresponding to the drilled portion is formed on the upper surface of the urethane-coated heel core (4). The shoe sole of a golf shoe according to claim 3, wherein an impact absorbing member (5) is fitted into the perforated portion and the concave portion (7). 7. A heel in which a recess (8) is formed at one or more central portions of the upper and lower surfaces of the heel core (1) so as to face each other, and the tops of the recesses (8) are formed so as to be in contact with each other. The sole of a golf shoe according to any one of claims 1, 2, 3, 4, 5, and 6, wherein a core (1) is mounted. 8. A fixing board (2) in contact with the heel core (1), a projection corresponding to a recess (8) formed at one or more central portions of the upper and lower surfaces of the heel core (1). 8. The golf shoe according to claim 7, wherein a heel insert (A, B) is provided in which a concave portion (8) of the heel core is fitted with a convex portion (9) of the fixing board. Shoe sole. 9. The heel core (1) is provided with a rib (10) for positioning the fixing board (2) or the cushioning material (3).
6. The sole of a golf shoe according to claim 1, wherein a heel insert (A, B) formed on the upper surface of the golf shoe is used. 10. In a direct injection molding, a spike (11) is inserted into a spike insertion hole (e) provided in a bottom surface of a heel cavity (d) of a sole mold (D).
And the flange seat surface (12) of the spike (11)
A lower fixing board (2) having heat resistance and rigidity,
A heel insert (A) in which a heel core (1) which is hermetically molded in a hollow plastic, an upper fixing board (2) having heat resistance and rigidity, and a cushioning material (3) are stacked in this order, is placed. ) And the midsole (6) of the last (14) in which the instep (13) is suspended and the flange seating surface (12) of the spike (11) sandwiches the heel insert (A) and seals in a shoe sole shape. A method of manufacturing a shoe sole of a golf shoe, comprising: injecting a thermoplastic resin into a molded mold to form the shoe sole and integrate the shoe sole with the insole (6) and the upper (13). 11. In a direct injection molding, a spike (11) is inserted into a spike insertion hole (e) provided in a bottom surface of a heel cavity (d) of a sole mold (D).
And the flange seat surface (12) of the spike (11)
A heel insert (B) in which a heat-resistant and rigid fixed board (2), a heel core (1) and a cushioning material (3), which are made of plastic and hermetically sealed in a hollow shape, are placed in this order, and an insole (6) is placed. ) And the midsole (6) of the last (14) from which the instep (13) is suspended and the flange seating surface (12) of the spike (11) sandwiches the heel insert (B) and hermetically seals in a shoe sole shape. A method of manufacturing a shoe sole of a golf shoe, comprising: injecting a thermoplastic resin into a molded mold to form the shoe sole and integrate the shoe sole with the insole (6) and the upper (13). 12. In a direct injection molding, a spike (11) is inserted into a spike insertion hole (e) provided in a bottom surface of a heel cavity (d) of a sole mold (D).
And the flange seat surface (12) of the spike (11)
A heel insert (2) in which a fixing board (2) having heat resistance and rigidity and a urethane-coated heel core (4) in which the periphery of a heel core (1) molded in a hollow and sealed with plastic is covered with a hard urethane foam resin are sequentially laminated. C) is placed on the heel insert (6) and the middle sole (6) of the last (14) in which the insole (13) is suspended and the flange seating surface (12) of the spike (11). C)
A shoe sole of a golf shoe, wherein a foamed polyurethane resin is injected into a mold sealed in a shoe sole shape to form the shoe sole and integrate it with the middle sole (6) and the upper (13). Manufacturing method. 13. In a direct injection molding, a fixed board (2) having heat resistance and rigidity is provided below a heel core (1), which is hermetically sealed with plastic, and a cushioning material (3) is provided on the heel core (1). The heel insert (B), which is preliminarily bonded and integrated, is bonded to the heel portion of the midsole (6) of the last (14) in which the midsole (6) and the instep (13) are suspended, and is sealed in a shoe sole shape. A method for manufacturing a shoe sole of a golf shoe, comprising: injecting a foamed polyurethane resin into a molded mold to form the shoe sole and to integrate the shoe sole with the insole (6) and the upper (13). 14. A part of the midsole (6) corresponding to the lower part of the calcaneus is punched out so as to have an inverted trapezoidal cross section, and a punched-out piece (15) is fitted into a punched hole. ) Is attached to the last (14), and when the last (14) is removed after the injection molding, the punched piece (15) is removed, and then the shock absorbing member (5) having the same shape as the hole formed by punching the insole (6). 2. The device according to claim 1, wherein
14. The method of manufacturing a shoe sole of a golf shoe according to any one of 0, 11, 12 and 13. 15. An insole (6) in which a portion corresponding to the lower part of the calcaneus of the insole (6) is punched so as to have an inverted trapezoidal cross section, and a punched piece (15) is fitted into a punched hole. ) Is attached to the last (14), and the cushioning material (3) having a hole corresponding to the hole formed by punching the insole (6) is placed on the heel core (1). At the time of removal, after removing the punched piece (15),
14. Golf according to claim 10, 11 or 13, characterized in that a shock-absorbing member (5) which fits into the hole punched out of the insole (6) and the hole in the cushioning material (3) is fitted. A method of manufacturing shoe soles. 16. A part of the midsole (6) corresponding to the lower part of the calcaneus is punched out so as to have an inverted trapezoidal cross section, and a punched-out piece (15) is fitted into a punched hole. ) Is attached to the last (14), and the urethane-coated heel core (4) having the concave portion (7) corresponding to the hole formed by punching the insole (6) is attached. When the last (14) is removed after injection molding, 13. The shock absorber (5) according to claim 12, characterized in that, after removing the punched-out piece (15), a shock-absorbing member (5) adapted to the hole punched out of the insole (6) and the recess (7) is fitted. Manufacturing method of shoe sole of golf shoes.