JPS5813163B2 - Method for manufacturing slush boots with imitation knobs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a slash boot having an imitation knob that is seamlessly integrated with the boot body.

In the past, in order to make it easier to insert the foot into the boot, so-called Western-style boots used to have a knob on which to hook the fingers when inserting the boot, by sewing a strip of leather into a ring shape. things were being done.

In recent years, the original purpose of the knob, which was to insert the foot, has gradually diminished, and the purpose has changed to merely express a Western fashion style, and the knob has been used as a mere imitation. Most of the time it is set up.

Therefore, it is sufficient for this imitation knob to have a pseudo-appearance to the original knob, but in order to form this, conventionally, for example, the boot body has been made with a material that is less strong than the original knob. Since the method was to sew materials that were similar in appearance, even though it was an imitation, it required a tedious work to sew the same way as the original knob.

Therefore, in order to avoid this, the present inventors attempted to manufacture boots using the slush manufacturing method and at the same time formed an imitation knob portion on the surface of the boot body that resembled the original knob portion in appearance.

In this case, the imitation knob is formed into an inverted convex shape that follows the shape of the knob molding recess provided on the inner surface of the slash mold, but the original knob is therefore It was not possible to construct the imitation knob with a ring-shaped structure for hooking it.

Therefore, in order to resemble this ring-shaped structure as much as possible, we made the upper end of the imitation knob slightly protrude from the upper edge of the boot body in an attempt to express the three-dimensional effect of the ring-shaped structure.
A feature of the slash manufacturing method is that even though the front side of the imitation knob can be given an uneven shape by molding, the back side is a smooth surface, so the protruding upper edge of the formed imitation knob is When the foot is inserted into the shoe, the back side that touches the foot has a sharp point, which causes inconveniences such as scratching the foot that comes into contact with it and damaging the socks.

The present invention aims to provide a method for manufacturing slash boots having an imitation knob that eliminates the above-mentioned disadvantages while using the slash manufacturing method.

To explain the present invention in detail with reference to the drawings, there is a band-shaped raised part 3 formed seamlessly and integrally with the boot body 1 on the surface of the collar part 2 of the boot body 1, and a belt-shaped raised part 3 that is seamlessly and integrally connected to the raised part 3. An imitation knob part 6 consisting of an extra piece 5 protruding upward from the upper edge 4 of the part 2 is molded together with the boot body 1 by slush molding, the extra piece 5 is folded back towards the inside of the boot, and this folded part 7 is attached to the inside of the boot. The folded part 7, the lining material 8, and the boot body 1 are interposed between the lining material 8 and the boot body 1, and the folded part 7, the lining material 8, and the boot body 1 are sewn together at the cuff 2 of the boot body 1. The present invention relates to a method for manufacturing slash boots having an imitation knob.

In the present invention, an example of manufacturing a boot in which an imitation knob part 6 consisting of a raised part 3 and an extra piece 5 is provided on the boot body 1 will be described. A shoe cover made of natural leather is hung on the last, and A sole is attached, the base of a band-shaped knob is sewn to the surface of the opening of the torso of the shoe, and the parts other than the base of the knob are made to protrude upwardly from the upper edge of the opening. A boot-shaped slush molding mold 9 is made of a master model, the outer surface of which is metal-plated by a conventional method, and an inverted uneven pattern 16 that imitates the uneven pattern of the outer surface of the master model is formed on the inner surface by electroforming. create.

On the inner surface of this mold 9, in a portion corresponding to the knob provided on the master model, there is an inverted concave portion 10 for forming an imitation knob, which extends upward from a concave-convex pattern 11 corresponding to the shoe opening. .

The inner surface area 12 of the mold 9 above the concavo-convex pattern 11 in the area corresponding to the extending shoe opening of the knob forming recess 10 is as follows:
Even with ordinary boots that do not have a knob like the one of the present invention, when manufacturing boots using the slush manufacturing method, there is a zone that must be prepared in the mold, and in general, paste resin is injected into this zone during slush molding. By doing so, the opening portion of the molded boot can be configured to have a predetermined thickness.

In the present invention, the recess 10 for forming the imitation knob is constructed by utilizing the upper inner surface area 12, which is generally prepared in order to make the film thickness of the shoe opening a predetermined thickness. Even if the master model has the parts other than the base of the knob protruding upright from the upper edge of the shoe opening, there is no need to greatly expand the mold 9 formed for this purpose upward.

A large amount of paste resin material for slush molding is injected into the mold 9 constructed in this manner up to the upper end of the inner surface area 12 above the corresponding part of the shoe opening, and the material is poured from the outside of the mold 9 using heating means such as hot water. The paste is heated to form a gelled film of a predetermined thickness on the inner surface of the mold 9, and then the remaining paste is poured out, and the gelled film adhering to the inner surface of the mold 9 is further heated and cured.

This adhered cured film is removed from the mold, and the unnecessary film other than the remaining piece 5 of the knob 6 formed on the inner surface area 12 is removed from the shoe opening 2.
Cut it out from the upper edge 4.

The remaining piece 5 that has been formed so as to protrude upward from the shoe opening 2 is folded back toward the inside of the boot from an appropriate folding point 13, and adhesive is applied to the side of the folded-back portion 7 that contacts the inside of the boot body 1, and the folded The part 7 is adhered to the boot body 1 and the lining material 8 is covered from above, and the folded part 7, the lining material 8, and the boot body 1 are connected with the sewing thread 14 at the opening part 2 of the boot body 1. The product is sewn to obtain an example product of the present invention.

Note that the film formed above the shoe collar by the upper inner surface area 12 is generally cut off as unnecessary material at the upper edge of the shoe collar, resulting in an unavoidable loss of material; however, in the present invention, this portion is Since the remaining piece 5 of the imitation knob 6 is formed by using the remaining piece 5, the loss is reduced.

Further, even if the shoe opening is formed to have a predetermined thickness, the film formed on the upper inner surface area 12 becomes thinner as it goes upwards, so the formed remaining piece 5 also becomes thinner as it goes upwards.
5, the thin film 15 of the remaining piece 5 is folded back to the inside of the boot, and this folded part 7 is interposed between the boot body 1 and the lining 8 and sewn with a sewing thread 14. The folded part 7 made of the thin film 15 is thin enough to reduce the impact on the foot inserted into the opening part 2 of the boot, thereby making it more comfortable to wear.

In the present invention, it is of course possible to form an uneven pattern 16 such as leather wrinkles or seams on the outer surface of the boot body 1 by the uneven pattern 16 formed on the inner surface of the mold 9. Similarly, an uneven pattern 16 can be formed on the outer surface of the protruding portion 3 and the remaining piece 5 of the knob 6 formed in the above by using the uneven pattern provided on the inner surface of the mold 9.

The raised portion 3 and the remaining piece 5 are formed in a band shape, and the edge 3 of this band shape may be straight or curved as shown in FIG.

The folding point 13 of the extra piece 5 for constructing the folding part 7 of the knob part 6 may be located above the upper edge 4 of the shoe opening 2, but it should not be located close to and directly above the upper edge 4. Good too.

The slush molding material used in the present invention may be commonly used materials such as polyvinyl chloride paste resin.

The lining material 8 is made of a material such as a woven can, a non-woven fabric, a knitted can, or a boa can made by brushing or flocking, synthetic leather, synthetic resin leather, natural leather, etc.
It may be possible to cover the entire inner surface of the shoe opening 2, or it may be partially provided only on the inner surface of the shoe opening 2 with a constant width.

If the outer periphery of the upper edge 4 of the opening part 2 of the boot body 1 is formed into a convex peripheral edge 17 in the shape of a bead, etc., the folded part 7 of the knob part 6, the lining material 8, and the boot body 1 can be sewn together. By configuring the sewing area at the bottom of the convex peripheral edge 17, the sewing thread 14 is protected from contact with other objects and impacts from outside the boot, and the sewing thread 14 is prevented from fraying. obtain.

The folded part 7 of the knob part 6 may be bonded to the inner surface of the boot body 1 by applying an adhesive to the side that contacts the inside of the boot body 1 when folded back. It may not be necessary to bond it, or it may not be bonded at all.

The part of the folded part 7 of the knob part 6 that is interposed between the boot body 1 and the lining material 8 tends to return to the folded part 7 when it is interposed briefly downward from the upper edge 4 or 2 of the shoe opening part 2. Due to the repulsive force caused by this, there is a risk that the tip of the folded portion 7 may lift up the backing material 8 from the inner side, making it difficult for the foot to hit the foot. It is better.

Applying adhesive to the intervening folded portion 7 as described above can prevent this damage and also facilitate the work of sewing the shoe opening 2.

In the present invention, the imitation knob can be seamlessly integrated with the surface of the opening of the boot body, and can be easily formed by folding it back and sewing it together with the lining material and the boot body, so manufacturing the boots is simple. Moreover, since the side of the shoe opening surface that is likely to come into contact with other objects is seamlessly integrated with the boot body, there is no risk of peeling off due to contact with other objects.

In addition, the remaining part of the knob is folded back from the folding point towards the inside of the boot to form a folded part, which is then sewn on. Therefore, the upper edge of this knob facing the shoe opening is rounded into a curved shape. This will not injure the foot or damage the sock.

Moreover, due to the appearance of this rounded folded part,
Since it is an imitation, it is not strong, but it can be made into a ring-like structure for the purpose of hooking the fingers of the original knob, or it can be made into a round three-dimensional structure, which does not have a ring shape like this, and the original knob is not strong. It can exhibit a distinctive appearance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a boot manufactured according to the present invention, and FIG. 2 is an enlarged partial sectional view taken along the line A-A in FIG. The figure is a partial perspective view of the vicinity of the shoe opening of a cured film obtained by demolding from the mold according to the present invention, and FIG. 4 is a perspective view of the upper part of the partially cut-off mold used in one example of the present invention. FIG. 5 is a partial perspective view showing the knob of another embodiment. 1... Boot body, 2... Shoe opening, 3
...Protuberance, 4...Top edge, 5...
...Remaining piece, 6...Knob part, 7...Folding part, 8...Backing material, 9...Mold, 13... ...Folding point, 14... Sewing thread.

Claims (1)

[Claims] 1. An imitation consisting of a band-shaped raised part seamlessly integrated with the boot body on the surface of the opening of the boot body, and an extra piece that protrudes upward from the upper edge of the opening part, seamlessly integrated with the raised part. A knob part is formed by slush molding together with the boot body, and the remaining piece is folded back toward the inside of the boot, and this folded part is interposed between the lining material inside the boot and the boot body, and at the opening part of the boot body. A method for manufacturing slash boots having an imitation knob, characterized by sewing the folded part, the lining material, and the boot body.