JPH0116406Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to footwear having a toe cap at the toe portion.

Normally, when manufacturing footwear such as athletic shoes, when binding and, for example, sewing, a lace cover and an insole, the length of the outer periphery of the lace cover is made in advance to be slightly larger than that of the insole. The total length difference between the cover and the insole is
During sewing, the absorption is mainly done by forming pleats on the outer circumferential edge of the sash over a certain length from the tip of the toe, so-called shirring stitching.

However, in the case of footwear that has a toe cap made of a different material than the toe cover, such as fiber material, LC material, LS material, leather, or synthetic leather, the toe cap is hard. Due to its thickness, problems arise in the formation of the pleats described above. In other words, in these toe cap footwear,
As shown in FIG. 1 (a diagram showing the calholenia toe cap described later), the toe cap 2 is stacked on the toe cap 1 and is integrally tied to the insole 3. Part A of the 1st layer of the 1st layer and the 1st layer of the 1st layer
There is a difference in thickness and hardness between the part B and the part B where the toe cap 2 is layered, and the degree of pleat formation is different.
More folds are formed in the bonded part of one layer, which results in large wrinkles.

Specifically, in the case of the California cover, in which the cover 1 and the insole 3 are sewn together and completed as a bag stitch, the stitch is sewn using a sewing machine set at a constant speed. In the case of sewing only the cover and the insole, pleats can be formed uniformly in the area corresponding to A-B-A in Fig. 1, but in the case of the cover 1 with toe cap 2 overlapped, pleats can be formed uniformly in the area corresponding to A-B-A in Fig. 1. Since B is thicker and harder than the part A which is made up of only the toe cap 1, the part A where the toe cap 1 is adjacent to the double layer part B of the toe cap has large wrinkles. In addition, in a string jacket formed by gearing the tip of the toe with a string, this gearing is performed by tensioning the string, but the single-layer part of the jacket is also formed by pulling the string. Since the thickness and hardness are different between the toe cap layered portion and the toe cap layered portion, the pleats are formed differently, and similarly, large wrinkles are formed in the single layered portion.

As a result, not only will the cover be deformed, but when the tape is attached to this binding part during subsequent molding, the large wrinkles will cause lumps in the tape part, and when the tape is injection molded, it will not fit into the outsole. When integrally formed, there is no gap between the cover and the mold, resulting in problems such as unfilled resin and exposed folds. In addition, in the latter case, the resin may flow onto the cover where the tape section should not be formed, causing so-called burrs, which requires time and effort to remove, and it is difficult to remove the burrs. There was also the problem of scratches remaining on the cover.

By the way, in the past, tow caps were
Footwear with toe caps can be seen in which the toe cap is present over a wide range, including areas where large wrinkles are likely to occur. However, this type of shoe is intended to change the performance and appearance of the footwear by changing the toe cap itself, and is therefore completely different from the toe cap-equipped footwear that is the subject of the present invention. It becomes something foreign.

The purpose of the present invention is to prevent the occurrence of large wrinkles without affecting the performance and appearance of footwear as much as possible.

In order to achieve this objective, the present invention is characterized in that the toe cap foot portion is present only in areas where large wrinkles are likely to occur.

Next, the present invention will be described in detail based on examples, but first, the case of the California spider lily will be described as an example with reference to FIGS. 2 and 3.

In the figure, as in the case of FIG. 1 explaining the above-mentioned conventional example, 1 is a toe cap, 2 is a toe cap stacked on the upper surface of the toe cap 1, 3 is an insole, and FIG. 2 is a toe cap with 2 toe caps. Cover 1 is insole 3, both 1, 3
This shows a state in which the outer peripheral edge of the bag is tied to form a bag by sewing the outer peripheral edge of the bag. Therefore, the toe cap 2 of this example differs from that of the conventional example in that it has a shape that extends slenderly from the toe side to the non-stepping side at both ends of the outer periphery of the surface that is connected to the insole 3. The toe cap foot 2' is extended. the result,
All the folds at the toe part are formed in the overlapping part B' of the toe cap 1 and the toe cap 2, so the unevenness of the folds is eliminated, and the thickness and hardness are increased, so the folds are formed in small numbers at intervals. ing.

The outsole 4 is injection molded onto the sewn body of the sewn toe cap 2 attachment cover 1 and the insole 3 to form finished footwear having a cross-sectional shape as shown in FIG.
FIG. 3 shows an example in which the outsole and a tape section for hiding the side surface of the joint between the lace cover 1 and the midsole 3 are integrally molded. The product obtained in this way has almost uniform pleats as described above, so
The adhesion between the toe cap 2 and the outsole 4 at the pleated portion is very good.

Next, referring to FIG. 4, the case of a string cover will be explained as an example.

In this example, a large number of loop-shaped threads 5 are provided on the outer peripheral edge of the toe cap 1 including the toe cap 2, and when the toe cap 2 and the toe cap 1 are attached to the last (foot last) 6. By pulling the string 7 inserted through the loop 5, the toe portion of the toe cover 1 with the toe cap 2 is smoothed along the curved portion of the last toe, thereby performing gearing. By this gearing, pleats are formed on the outer peripheral edge of the toe part of the toe cap 1, but as in the first embodiment, the toe cap 2 has conventionally been where the formation of pleats has been concentrated. Since the toe cap leg portion 2' extends to the top portion, the pleats due to the gearing are also uniformly formed in the multilayer portion B' as in the above example.

The inner sole is adhered, for example, by adhesive, to the outer peripheral edge of the sleeve 1 with the toe cap 2 formed in this way, and further, as in the above example, by integrally injection molding the main sole and the tape part, the toe cap 2 The product is formed by applying tape to the pleats of the cover 1 and then injection molding the bottom. As a result, the formed tape part can cover the toe cap 2 without any appearance defects such as lumps, whether by forming it integrally with the outsole or by attaching the tape separately. It will be in a covered state.

As described above, the present invention provides the following various effects.

Since the toe cap foot portion is present, the folds formed at the toe portion can be made uniform and the generation of large wrinkles can be prevented, and therefore, all of the above-mentioned problems related to the generation of large wrinkles are solved.

Since the foot part of the toe cap is extended from the toe cap toward the rear of the footwear, there is no left-right bending of the toe cap itself during the manufacture of the footwear, and therefore, the footwear with the toe cap can be manufactured as designed.

The toe cap foot may be formed in the minimum necessary amount that contributes to preventing the occurrence of large wrinkles, and therefore less material is required to form the toe cap foot, resulting in no waste.

Similarly, the toe cap foot portion only requires the minimum necessary amount, so it does not impede the comfort of the wearer. That is,
For example, if the toe cap foot is formed to have the same width as the toe cap, the area where the toe cap exists will also be thick, and the movement of the foot will be considerably restricted when worn, resulting in toe bending (heel bending). It becomes difficult to move up and down.

Since the toe cap foot portion is covered with the tape portion, there is no fear that the toe cap foot portion itself will peel off under any load.

Since the toe cap foot portion is present in an area that is not visible from the outside, its presence does not cause any change in the appearance of the footwear.

[Brief explanation of the drawing]

FIG. 1 is a downward perspective view showing a conventional example based on the California flycover, FIG. 2 is a downward perspective view showing a first embodiment of the present invention, and FIG. 3 is a sectional view of the product. A sectional view corresponding to the -section of 4th
The figure represents a bottom perspective view showing a second embodiment of the present invention. In the diagram, 1... yoke, 2... tow cap, 2'
...Toe cap foot, 3...Insole, 4...Outsole, A...Single layer part, B, B'...Multiple layer part.

Claims (1)

[Scope of utility model registration request] Footwear with a toe cap, characterized in that a toe cap foot portion having a height that is hidden by a tape portion after molding is extended at both ends of the outer periphery of the toe cap along the joint surface of the midsole.