JPH07265104A - Sole with instep side band and die for instep side band - Google Patents

Abstract

PURPOSE:To improve fitness to a vamp and a foot and to freely attachably and detachably couple an instep side band with the sole by conquering the defects of conventional shoes with instep side bands or soles with instep side bands. CONSTITUTION:This shoe comprises the instep side band composed of a main body part 1 equipped with a lot of projections on the side of a lower face and bands 2 and 8 extended from both the side edges of the main body and strap through holes or strap stoppers at free terminals and the sole equipped with a lot of recessed parts or holes for fitting the respective projections of instep side bands inside a lower step-shaped part provided at a shank part, and the respective projections of the sole are fitted and coupled. Further, concerning the die, in order to form the instep side bands, an instep side band shaped cavity is formed by fitting an upper die and an insert inside the recessed parts at prescribed positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a shoe sole with an upper band suitable for sports shoes for running land spikes and a molding die for the upper band.

[0002]

2. Description of the Related Art A conventional shoe with an instep band has a lower end of the instep band joined to the lower end of the instep with an adhesive between the instep part and the bottom part or both side edges of the shoe sole. In some cases, the instep side band, which is integral with the sole, extends.
In the former shoe with instep band, there is a difference in the extension strength between the instep and the instep band, which causes creases in the instep to damage the foot, and to tighten the laces to cause insufficient fit to the foot. .
In addition, the latter shoe sole with instep band is extremely uneconomical because the entire shoe sole must be replaced when the instep band is damaged, and it is not easy to form multiple bands integrally with the shoe sole body. There is a defect that the mold is expensive to manufacture, the production cost is increased, and it is difficult to mold in a preferable state.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The shoe sole with the instep band of the present invention overcomes the defects of the above-described conventional shoe with the instep band and shoe sole with the instep band, and wrinkles on the instep. Not only does it fit well with the instep and the shoe wearer's foot without causing any inconvenience, but the instep side band can be easily attached to and removed from the sole, and if the instep side band is damaged, only the instep side band can be replaced. It is intended to provide a good and economical one, and to provide a mold for forming a particularly desirable instep band.

[0004]

[Means for Solving the Problems] An upper band a composed of a main body 1 and a band 2 and a shoe sole B, and a large number of them provided in a low step portion 6 provided in a non-stepped portion of the shoe sole b. A large number of projections 3 and 3 provided on the upper surface of the main body 1 of the instep side band a are fitted in the recesses or through holes 7 and 7, and the instep side band a is attached to the shoe sole b and detachable. Is a new means. Further, since the upper side band a is molded, the upper mold 1
2 and the lower mold 13 and the nest 17, in the lower mold 13 in each recess 15 in which the nest 17 is fitted in the portion corresponding to each protrusion 3 of the instep band a and each nest 17 in each recess 15 A novel means is to form a channel 20 communicating with the gas vent hole 16 of the recess 18 into which each protrusion 3 of the instep band a is fitted and communicating with the outside of the lower die 13.

[0005]

In the shoe sole A with the instep side band according to the present invention, the protrusions 3 of the instep side band a are attached to and removed from the recesses 7 of the lower stepped portion 6 of the stepped portion on the bottom side of the shoe sole b. Can be freely installed. A shank-like action is obtained by tightening from the instep part of the shoe and the stepping part of the shoe wearer. Further, the lower die 13 of the forming die B for the instep side band according to the present invention has respective recesses 15 into which the respective nests 17 are fitted, and the projections of the instep band a are inserted in the recesses 17 in the respective recesses 15. A recess 18 into which 3 is fitted is provided. Further, the gas vent channels 20 communicating with the gas vent holes 16 communicating with the recesses 18 are formed to form the nests 17.
Also, air and gas in the cavity can be discharged.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of a typical embodiment of a shoe sole A with an instep band according to the present invention shown in the drawings. The shoe sole A with the instep side band according to the present invention is shown in FIGS.
It is formed by an instep side band a and a shoe sole b as shown in FIG. As shown in FIG. 1, the instep side band a has a main body portion 1 and one or a plurality of bands 2, 2 extending from the left and right side edges of the main body portion 1 to the left and right, respectively, and A large number of protrusions 3 are formed on the bottom surface of the main body 1 so as to project therefrom. For the upper band a, a thermoplastic resin such as an aliphatic polyamide resin (various types of nylon), a polyurethane resin or a polyurethane elastomer is used. However, since the elongation is large only with the resin or the like, the elongation-preventing base material (polyester) fiber can be heat-sealed to the surface of the instep side band a member. Also, the main body 1 of the instep side band a
The protrusions 3 provided on the base plate 3 are relatively easily detached if the enlarged portion 10 is formed at the tip thereof. Similarly, one or more string through holes or string hooking devices 4 are provided near the free end of each band 2 of the instep side band a. Next, as shown in FIG. 2, the bottom b of the shoe sole b is formed with a low step 6 into which the main body 1 of the upper band a is fitted, in a stepped portion on the bottom side of the sole b. The recesses or through holes 7 into which the protrusions 3 of the main body 1 of the instep side band a are fitted are formed. Therefore, as shown in FIGS. 3 to 5, the instep side band b penetrates each protrusion 3 mainly through each recess of the ground contact surface bottom 11 of the shoe sole b, or the synthetic leather layer on the upper surface side of the ground contact bottom 11 or The bottom of the upper surface 10 made of a foam layer is reached. Therefore, since the tip of each protrusion 3 of the instep side band a is the enlarged portion 5, the instep side band a
The main body portion 1 can be firmly joined without being easily separated from the lower stepped portion 6 of the stepped portion of the shoe sole b. The bottom surface 1
For 0, thermoplastic resins such as aliphatic polyamide resins (various nylons) and polyurethane resins are used. As shown in FIG. 6, the upper sole 10 of the shoe sole A with the instep side band according to the present invention is connected to the bottom surface side of the instep cover C, so that the laces in the lace fastening portion 22 of the instep cover C are passed through. With the hole or the string hooking device 21, each string passing hole or the string hooking device 4 at the free end of each band 2 can insert the string or hook the string to tighten the instep C of the shoe. At this time, in the string tightening portion of the instep cover C, a portion where the bands 2, 2 of the instep side band a extend can be the cutout portion 23. Similarly, each of the other bands 8 of the instep side band a has an instep cover C.
It suffices to have each band through hole 9 for inserting the heel band 25 surrounding the rear part of the heel so that the band 25 can be tightened. Others 24 are tongue pieces of the instep C and are 2
Reference numeral 6 is a spike attached to the front stepped part of the shoe sole C. Next, a typical example of the forming die B for the instep side band a according to the present invention shown in the drawings is as follows. As shown in FIGS. 7 to 9, the molding die B of the present invention is composed of, for example, an upper die 12, a lower die 13 and a plurality of insertion holes 17, 17. The upper mold 12 has a recess 14 formed in a part of the lower mold 13 on the abutting surface side to form the upper surface of the main body 1 of the upper band a. Further, recesses 15 and 15 for fitting the insertion holes are formed on the side of the lower die 13 on the side of the abutment surface with the upper die 12 corresponding to the protrusions 3 of the main body 1 of the instep side a. ing. Further, each recess 15
Venting channel 16 reaching the outside of the lower mold 13 from the bottom of the
Is formed. Next, each of the nests 17 is formed in a center position thereof with a recess 18 which is opened in an abutting surface with the upper die 12 and into which each protrusion 3 of the instep side band a is fitted. Each gas vent hole 20 communicating with the channel 16 is formed. In addition, each protrusion 3 of the instep side band a
When the enlarged portion 5 is formed at the tip end of each of the inserts 17, an enlarged recess 19 communicating with the recess 18 is formed in each nest 17 so as to correspond to this, and the enlarged recess 19 and the gas vent hole 1 are formed.
The gas venting through hole 20 may be formed so as to communicate the six. Further, a method of forming the instep side band a using the forming die B is as follows. That is, first, the lower mold 13 in which the respective nests 17 are fitted into the respective recesses 15 in the lower mold 13 is covered with the upper mold 12, and the lower mold 13 and the upper mold 12 form the instep side. A band-shaped cavity is formed, and an instep band material of a thermoplastic resin such as an aliphatic polyamide resin, a polyurethane resin or a polyurethane elastomer is supplied into the cavity by means such as injection, or at 130 to 150 ° C and 150 kg. / Cm ²
After heat-pressurizing for 3 to 5 minutes, removing the upper mold 12 and cooling and hardening, each nest 17 may be removed from the instep side band a. If each of the inserts 17 is divided into two, the insertion holes 17 can be simply removed from the instep side band a. Further, the instep side band a may be provided with a hole at the free end side of each band 2 or by attaching a string hook.
The upper mold 12, the lower mold 13, and the respective nests 17 are made of normal molding materials such as steel, aluminum, and lightweight alloys thereof. Similarly, as the instep side band material, a thermoplastic synthetic resin material such as an aliphatic polyamide resin (various nylons), a polyurethane resin or a polyurethane elastomer is used.

[0007]

EFFECT OF THE INVENTION In the shoe sole A with the instep side band according to the present invention, the main body 1 of the instep side band a can be placed in the lower stepped portion 6 of the stepped portion of the shoe sole b, so that the instep side band a can be installed in a stable state. At this time, the main body 1 of the instep side band a
Since the protrusions 3 are fitted into the recesses or the through holes 7 in the lower portion 6 of the shoe sole b, the instep side band a and the shoe sole b are detachably connected and the instep side band a fails. However, it is economical because it can be replaced with another instep side band a.
Further, the molding die B for molding the instep side band a according to the present invention has the respective projection-shaped depressions 18 of the instep side band a in each depression 15 opened in the abutting surface of the lower die 13 with the upper die 12. Since the depression 18 and the enlarged depression 19 communicating with the depression 18 are provided, it is easy to form each protrusion 3 of the instep side band a, and the enlarged depression 19 and the gas vent hole 20 communicating therewith and the gas vent channel of the lower mold 13 are formed. Since 16 is provided, it is possible to form an accurate and tough instep side band a without gas pools that easily discharges air and gas by interposing it in the cavity and in the recess 18 of the insertion hole and the enlarged recess 19. it can.

[Brief description of drawings]

FIG. 1 is a schematic oblique view showing a lower surface side of an instep side band of an insole side shoe sole according to the present invention.

FIG. 2 is likewise a schematic perspective view showing the lower surface side of the shoe sole.

FIG. 3 is likewise a schematic diagram of a slope showing the lower surface side of the shoe sole with the instep side band.

FIG. 4 is a schematic vertical sectional view taken along line XX of FIG.

5 is a schematic cross-sectional view taken along the line YY of FIG.

FIG. 6 is a schematic side view of an athletic shoe equipped with a shoe sole having an instep side band according to the present invention.

FIG. 7 is a schematic cross-sectional view showing a molding die according to the present invention.

8 is a schematic enlarged cross-sectional view of a nest fitted in each recess of the lower mold of the molding die of FIG. 7. FIG.

FIG. 9 is also a partially enlarged cross-sectional schematic view of the lower mold in which the insert of FIG. 8 is fitted.

FIG. 10 is a schematic partial cross-sectional view of a molding die for molding the upper side band.

[Explanation of symbols]

 A Sole with instep side band B Mold D Instep part a Instep side b Sole 1 Main part 2 and 8 Band 3 Protrusions 4 and 9 String through hole or string hooking tool 5 Enlarged part 6 Lower step 7 Recess or through hole 10 Top bottom 11 Grounding surface bottom 12 Top surface 13 Lower mold 14 Recesses 15 and 18 Recess 16 Gas venting hole 17 Nest 19 Enlarged recess 20 Gas venting channel 21 String through hole or strap hook 22 22 Tightening part 23 Missing part 24 Tongue piece 25 Heel band 26 Spike

Claims (3)

[Claims] 1. A main body portion 1, one or a plurality of bands 2, 2 respectively extending from both side edges of the main body portion 1, and a large number of protrusions 3, 3 protruding upward from an upper surface side of the main body portion 1.
In addition, in the instep side band portion a in which one or a plurality of string through holes or strap hooking devices 4, 4 are provided at the free ends of the respective bands 2, and in the lower stepped portion 6 provided on the side of the stepless portion. A shoe sole b provided with a large number of depressions or through holes 7 corresponding to the respective protrusions 5 of the instep side band portion a, and the instep side band portion is provided in each depression or through hole 7 of the shoe sole b. A shoe sole with an instep band, characterized in that each projection 3 of the main body 1 of a is fitted and fixed. 2. A free end piece of a short projecting piece 8 is attached to a part of a side surface on the heel side of each band 2 of the instep side band portion a of the instep side shoe sole A with a lace hole or a strap. The shoe sole with an instep band according to claim 1, wherein a shoe 4 is provided. 3. A forming die B comprising an upper die 12, a lower die 13 and a nest 17, wherein the upper die 12 is provided on at least a part of an abutment surface with the lower die 13 for the instep side band portion a. The lower mold 1 is provided with the concave portion 14 forming the main body 3 of
Denoted at 3 is a recess 15 into which the nest 17 is fitted in a portion of the abutment surface with the upper mold 12 corresponding to each projection 3 of the main body 1 of the instep side band portion a and a bottom surface of the recess 15. A channel 16 for venting gas reaching the outer surface of the lower mold 13 is provided, and similarly each of the nests 17 is fitted with the respective projections 3 of the main body portion 1 of the instep side band portion 4 and the recess 18 and the lower mold 12.
Gas vent channel 20 communicating with the gas vent through hole 16 of
And the inserts 17 with the recesses 18 on the upper surface side are fitted into the recesses 15 of the lower mold 13, and the material for the instep side band a is injected or housed in the recesses 14 of the upper mold 12 for curing molding. Mold B for the instep side band a characterized in that.