JP6277471B2 - Shoe sole - Google Patents

Description

The present invention relates to the replacement of the heel of a shoe sole in general footwear.

Conventionally, in the replacement of the shoe sole heel, many literatures have been found in which grooves or irregularities are provided to fix the heel member, or they are joined and released using an instrument.
The following prior art documents are mentioned as an example.

Japanese Utility Model Publication No. 51-16539 Japanese Utility Model Publication No. 61-144804

However, in the invention described in the cited document 1, since the length of the hook retaining rib is short, the engagement is not sufficient, and the rear end of the hook is pushed forward by the hook landing operation during walking or running, May fall off. In addition, as a method of removing the heel member, there is “the shoe sole plate bends upward while pressing or striking the rear end of the heel portion in the longitudinal direction of the shoe,” but this method requires pressing and bending. It is hard to say that anyone can easily replace it, because it is difficult to adjust the power and it requires technology.

Furthermore, since the invention described in the cited document 2 has an installation structure in which the engaging groove is a lateral groove and is separated from the outer periphery of the saddle like the cited invention 1, the engagement is not sufficient, and a screwdriver is used when removing the saddle member. Since the stopper must be released by inserting it into the gap between the joint surfaces and opening it, the flange will be worn out, and the flange will be subject to excessive force and the heel will be easily deformed. It is difficult to say that a large gap is easily formed on the joint surface between the bottom heel and the replacement heel, which is troublesome and can be easily replaced.

As described above, there are a number of problems in the replacement of the collar part, and in particular, there has been no method in which anyone can easily engage and release the collar member. The present invention solves these problems, can replace the heel of the shoe sole smoothly and easily, can maintain an engaged state enough to withstand walking and running, and further, the sole body and the heel member It is a shoe sole intended to prevent a large gap from being formed on the joint surface.

In order to solve the above-described problem, in the invention according to claim 1, in the shoe sole in which the heel member can be attached to the heel lower portion of the shoe sole body, the engagement groove formed on the lower surface side of the shoe sole body. And the base part of the hooking protrusion protruding from the front end of the heel member is bent by a bar provided on the shoe sole body. The hooking protrusion is fitted and attached to the grounding surface opening hole, and the hooking protrusion of the collar member is pressed through the grounding surface opening hole to bend its base, thereby releasing the hooking state between the opening hole and the hooking protrusion. The heel member can be removed from the sole body by sliding it backward.

In the invention according to claim 2, the heel upper layer portion of the shoe sole body according to claim 1 is formed of a foamed elastic body, and the position is shifted to the inside and outside along the heel outer periphery substantially on the heel lower surface side. In parallel, there are two or more tapered engagement grooves in the upper and lower sides, a bar for bending the hooking protrusion of the collar member at the center of the front end, and a grounding surface opening hole into which the hooking protrusion is fitted after passing through the bar. It is characterized by having a hard resin material substrate provided integrally, and by using a foamed elastic body for the upper layer part of the bag, it can exhibit an excellent effect of absorbing shock when worn, By making the engagement groove into a tapered groove using a hard resin material, it can be provided closer to the outer periphery of the buttock without increasing the depth of the groove compared to the conventional lateral groove, so the outer periphery of the joint surface Of the joint surface between the sole body and the heel. It is possible to suppress the raw.

According to a third aspect of the present invention, there is provided a substrate made of a hard resin material integrally provided with a groove for engaging the upper surface side of the heel member with a tapered engagement groove of the shoe sole body and a hooking protrusion formed at the front end thereof. The bottom surface is provided with a heel, and the tapered groove formed on the bottom surface of the heel portion of the shoe sole body by using a hard resin to make the engagement groove into a reverse taper shape. The groove can be closely engaged, and the sliding operation of the eaves member can be performed smoothly. Furthermore, the effect which was excellent in the impact absorption at the time of landing can be exhibited by forming a coffin bottom with a foaming elastic body.

According to a fourth aspect of the present invention, the hooking projection described above is formed so that the base portion is formed in a plate shape in the horizontal direction, and the tip of the projection portion protruding from the center of the front end is formed into a substantially acute angle and is downwardly plated. It protrudes thicker than the thickness of the shape, and is formed in a wedge shape. Thereby, the hooking projection is securely fitted into the ground opening hole, and the eaves member does not easily fall off.

According to a fifth aspect of the present invention, a notch is provided in the vicinity of the bar of the substrate according to the second aspect, and the foamed elastic body of the upper layer portion of the shoe sole body is exposed in the notched portion so as to be in close contact with the hooking projection. When the hooking protrusion passes through the bar, it contacts the upper part of the bar and bends upward, pushes away the foamed elastic body, and then returns downward due to the return action. And is in close contact with the foamed elastic body, and the downward pressing state is maintained. As a result, even when the hooking protrusion at the time of mating is pushed up due to pebbles or the like when it is used, the push-down action works on the substrate provided on the hooking protrusion due to the elasticity of the foamed elastic body, making it difficult to release the mating state be able to.

According to the sixth aspect of the present invention, a hole penetrating up and down is formed on both sides of the front end of the substrate of the hard resin material provided on the upper surface side of the heel member, and the screw is fixed to the shoe sole body. This is characterized in that it is provided so as not to protrude, thereby making the attachment of the eaves member stronger, and since the screw does not contact the grounding surface, the screw stopper is not loosened.

Next, the operation of the present invention will be described. According to the first aspect of the present invention, in the shoe sole in which the heel member can be attached to the heel lower portion of the shoe sole body, the engagement groove formed on the lower surface side of the shoe sole body heel portion and the engagement formed on the upper surface side of the heel member By engaging the groove and sliding the groove from the rear to the front, the grooves are engaged with each other, and the hooking protrusion protruding from the front end of the heel member is associated with the bar provided on the front of the shoe sole body heel. The base bends upward while contacting the top.

At this time, the base of the hooking protrusion is bent and deformed to the upper surface due to the suppression by the bar, but after passing through the bar, the bending is eliminated by the elastic return action, and accordingly, the tip part of the hooking protrusion is formed in front of the bar. Is fitted into the grounding surface opening hole. After that, if necessary, attach the heel member by fixing the screw holes formed at the front ends of the heel portion of the shoe sole body and the screw holes formed at the locations corresponding to the screw holes to the heel member with screws. Is completed. Thereby, attachment of a saddle member can be performed easily and it can prevent that a saddle member falls off at the time of a walk or driving | running | working.

Further, when removing the flange member, first, the screw is released using a screwdriver, and then the tip end of the hooking projection fitted into the grounding surface opening hole is pressed upward so that the fitting state is obtained. While releasing, by sliding the eave member backward, the engagement between the grooves is released, and the removal of the eave member is completed.

Among the present invention, by using EVA compression as the material of the foam elastic body used for the heel upper layer portion of the shoe sole body and the heel bottom portion of the heel member, the impact applied during walking / running compared to other materials is reduced. The effect is exhibited by the absorption power, and the adhesion to the substrate is also good. Furthermore, by using a hard resin made of nylon for the hard resin material substrate placed on the lower surface side of the heel part and the upper surface side of the heel member, the sliding operation of the heel member can be performed smoothly. It can endure without cracking or deforming due to the impact.

According to the present invention, it is possible to easily replace the shoe sole. In addition, the effect of the function provided on the sole of the shoe depending on the weather or the situation, such as replacement of the buttocks suitable for the weather and the scene, such as a sole that has a slip-resistant function that is required in snowy areas and rainy weather Considering the case of changing, it can be replaced with a buttocks corresponding to the wearer's physique. That is, the shoe sole of the present invention can easily replace the heel portion having a function according to the wearer's use and preference.

Cross-sectional view of the sole body from the side Cross-sectional view of the eaves member viewed from the side Top view of heel member Perspective view of heel member Bottom view of the sole body heel Perspective view of the sole body heel Sole body buttock viewed from the rear edge Cross-sectional view of the sole from the side when the heel member is mounted The enlarged view of the A section of FIG. 8 in another Example In FIG. 9, an enlarged view showing the completed state of fitting Sectional view of buttock a-a 'in FIG. Assembly drawing of shoe sole heel showing outline of screw fixing from side Cross-sectional view of the collar showing the completion of screwing Bottom view of shoe sole showing heel member engaged

Next, embodiments of the present invention will be described with reference to the drawings. 1, 5, and 6, the shoe sole body 11 includes a shoe sole upper layer portion 12 made of a foamed elastic body, a shoe sole 13 having a rubber disposed on the front portion of the shoe sole, and a hard nylon made on the lower surface side of the heel portion. A resin-made substrate 14 is provided, and on the lower surface side of the substrate 14, a tapered engagement groove 15 is formed by shifting the position inward and outward substantially along the outer periphery of the ridge, and forming upper and lower two stages at regular intervals. And a bar 16 for bending a hooking protrusion 24 described later at the front part, a grounding surface opening hole 17 for fitting the tip of the hooking protrusion 24 to the front, and a hooking protrusion from the rear of the bar to the grounding surface opening hole. A portion corresponding to 24 insertion paths is cut out and removed from the substrate, and this portion is in a state where the upper layer portion of the shoe sole is exposed by removing the substrate. Furthermore, screw holes 19 for screwing are provided on both sides of the shoe sole body 11 in front of the heel.

2 to 4, the heel member 21 has a substrate 22 made of nylon hard resin on the upper surface side, a heel bottom 23 made of a foamed elastic body on the lower surface side, and a shoe sole body 11 on the upper surface side of the substrate 22. A tapered engaging groove 25 that engages with the engaging groove 15 and a hooking protrusion 24 projecting from the front center portion are provided, and the tip end portion 26 is formed in a wedge shape so as to protrude to the lower surface side with an acute angle shape. Further, the heel member 21 is provided with a screw hole 19 provided in the sole body 11 and a hole 27 for screwing on both front sides thereof.

Of these, polyurethane, rubber, EVA (ethylene vinyl acetate copolymer), or EVA compression is generally used as the material for the foamed elastic body used for the shoe sole upper layer 12 and the sole 23. EVA compression is used in consideration of adhesion and shock absorption during walking. A plastic material can be used as the substrate material, but it is preferable to use a hard resin material made of nylon having sufficient rigidity to withstand an impact during walking.

Further, by making the engagement grooves 15 and 25 tapered, the depth of the engagement grooves in the vertical direction can be made shallow, and can be provided near the outer periphery of the flange. Further, it is possible to make the engagement state between the grooves more dense when the hook part is engaged, and further, if necessary, the position of the engagement groove is shifted inward and outward along the outer periphery of the hook so as to be two or more. Thus, the engaged state can be further strengthened. And this invention can also manufacture a shoe sole with a low heel, and can achieve weight reduction.

In order to attach the heel member 21 to the sole body 11, the tapered engagement groove 25 of the heel member 21 extends along the tapered engagement groove 15 of the sole body 11 as shown in FIGS. 8 and 11. The engagement groove 15 of the shoe sole main body heel part and the engagement groove 25 of the heel member are engaged by inserting and sliding from the rear part of the heel part to the front, that is, in the direction b shown in FIG.

Thereafter, the eaves member is slid forward while maintaining the engaged state of the engagement grooves 15, 25, and the tip end portion 26 of the hooking protrusion 24 is inserted into the contact surface opening hole 17 while being in contact with the upper portion of the bar 16. At this time, the engaging protrusion 24 is suppressed and bent upward by the bar 16, but the space formed by the notch 18 is formed wider than the thickness of the front end portion 26 of the engaging protrusion 24, so that it can be inserted smoothly. Alternatively, as shown in FIG. 9, by projecting the foamed elastic body exposed in the notch portion so as to be in close contact with the hooking protrusion, the hooking protrusion is bent at the tip by the bar when inserted. The foamed elastic body can be pushed up and inserted, and then, as shown in FIG. 10, the hooking projection is in close contact with the bar and the foamed elastic body when fitted, and is fixed in a state where it is always pressed downward by the foamed elastic body. As a result, the fitting state becomes stronger.

At that time, the hooking protrusions 26 that have passed through the bar are released from bending due to the return action due to elasticity, and at the same time, the end of the hooking protrusions are fitted into the grounding surface opening hole 17 to complete the attachment of the eaves member 21. . Thereafter, as shown in FIGS. 12 and 13, the present invention uses a screwdriver in the screw holes 19 formed at both ends in front of the heel member and the screw holes 27 provided at both ends in front of the heel portion of the shoe sole body as required. It is also possible to perform screwing.

At this time, the replacement rod member 21 has a tip 26 of the hooking protrusion 24 having an acute angle shape and a wedge-like shape protruding downward, so that it can be securely fitted into the grounding surface opening hole 17 and maintained in the hooked state. Will not be released. Further, as shown in FIG. 13, the screw hole 27 of the flange portion 21 is provided with a recess in the lower portion of the substrate 22, so that the screw does not protrude from the ground surface when screwing, and the screw loosens during walking and running. There is nothing.

Further, in order to remove the flange member 21, the screw 31 is removed using a screwdriver, and further, the distal end portion 26 of the engaging projection 24 is pressed upward to release the fitting state, and the flange member 21 is slid rearward. Thus, the engagement between the tapered engagement grooves 15 and 25 can be released and removed. In addition, the shoe sole of the present invention has the engaging groove formed of a hard resin material, so that the flange can be replaced smoothly without causing wear or deformation of the flange that has occurred in the past. The period can be used.

DESCRIPTION OF SYMBOLS 11 Shoe sole main body 12 踵 Upper layer part 13 Shoe sole 14 Substrate 15 Engaging groove 16 Bar 17 Grounding surface opening hole 18 Notch part 19 Screw hole

21 踵 member 22 substrate 23 踵 bottom 24 engagement projection 25 engagement groove 26 distal end portion 27 screw hole 31 screw b insertion direction

Claims (6)

In a shoe sole in which a heel member can be attached to the heel lower portion of the shoe sole body, the heel member is engaged with a groove formed on the lower surface side of the shoe sole body and slid forward, and accordingly, protrudes from the heel member front end. The base of the hooking protrusion is bent by a bar provided on the sole body, and after passing through the bar, the hook is attached to the grounding surface opening hole of the sole body by an elastic return action, and through the grounding surface opening hole By pressing the hooking projection of the heel member and bending its base, the hooking state between the contact hole on the grounding surface and the hooking protrusion is released, and the heel member can be removed from the shoe sole body by sliding the heel member backward. Soles. The shoe sole body has a heel upper layer portion formed of a foamed elastic body, and has a tapered groove having two or more upper and lower stages in parallel on the lower surface side of the heel while shifting the position substantially along the outer periphery of the heel to the inner and outer sides. It is characterized by comprising a hard resin material board integrally provided with a bar for bending the hooking protrusion of the collar member at the front end and a grounding surface opening hole into which the hooking protrusion is fitted after passing through the bar. The shoe sole according to claim 1, wherein the shoe member is replaceable. The heel member has a hard resin substrate integrally provided with a groove engaging with a tapered groove of the shoe sole body and a hooking protrusion provided at a front end thereof on the upper surface side, and a heel contact bottom on the lower layer side. The shoe sole according to claim 1 or 2, wherein the shoe member is replaceable. The hooking protrusion has a base plate formed in a horizontal plate shape, and a protrusion projecting at the center of the front end is formed in a wedge shape with a sharp tip at the tip and projecting thicker than the plate thickness downward. The shoe sole according to any one of claims 1 to 3, wherein the shoe member is replaceable. The hooking protrusion is provided with a notch in a portion corresponding to the insertion path of the hooking protrusion in the base of the shoe sole main body, and the foamed elastic body of the upper layer portion of the shoe sole main body is exposed in the notch, and is closely in contact with the hooking protrusion downward. The shoe sole according to any one of claims 1 to 4, wherein the shoe sole is replaceable. The heel member is characterized in that a hole is formed on both sides of the front end of the hard resin material substrate provided on the upper surface side thereof and is screwed to the shoe sole body, so that the screw does not protrude from the heel contact surface. The shoe sole according to any one of claims 1 to 5, wherein the heel member is replaceable.

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