JPS586486B2 - Method of manufacturing slipper soles - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method of manufacturing slipper soles.

For slippers in which the upper is layered on the slipper sole, the outer periphery of this upper is folded back and glued to the back of the slipper sole, and the outsole of approximately the same shape is superimposed and glued on the back of the slipper sole, the slipper sole is It is common practice to have at least a two-layer structure, with the outer periphery of the surface layer folded back to the back surface of the back layer, and this folded piece is glued to round the outer periphery of the upper surface.

Therefore, it takes a lot of effort to form the slipper soles.
Moreover, when trying to give the slippers a luxury feel, it is necessary to bond a plurality of thick outsole layers, which tends to cause delamination between the layers of the outsole, which poses problems in terms of strength.

In view of the above points, the present invention provides a manufacturing method that makes it possible to form a durable slipper sole very easily and efficiently.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the original slipper sole 1 consists of a first layer 2, a second layer 3, and a third layer 4, and these first to third layers 2, 3, and 4 are They are laminated and welded together only on the outer periphery.

Such a slipper sole original form 1 is made by laminating three layers by suitably combining layers such as braided fabric, woven fabric, or synthetic resin molded sheets, and welding this laminate along the outer circumferential shape of the foot shape. Cut along the welded part.

As shown in FIGS. 1 and 2, the original structure 1 with the above structure is formed by forming a cut 5 of a required length in the first and second layer bodies 2 and 3, and The layers 2 and 3 are folded back from the cut 5 and turned over so that the back side of the third layer 4 is overlapped.

By turning over the first and second layer bodies 2 and 3, the welded portion 6 on the outer periphery of the original form 1 enters inside, as shown in FIG. 3, so that the outer periphery of the original form 1 can be rounded.

Now, by using a stretchable braided fabric such as knitted fabric as the third layer 4, the outer periphery of the third layer 4 can be changed by turning the first and second layers 2 and 3 inside out. The outer periphery of the original form 1 is wrapped around, and the front side of the third layer body 4 can be made into a flat surface.

After rounding the outer periphery of the original form 1 in this way, as shown in FIG. If necessary, a deodorizing agent layer such as activated carbon or an elastic material layer 8 such as sponge may be inserted between the layers from the cut 5.

After retaining the original shape 1, as shown in FIG. 5, a slipper sole A is obtained by superimposing an outsole 9 of approximately the same shape on the surface of the turned-over second layer 3 and thermally welding at least the outer periphery. Can be done.

Now, as shown in FIG. 6, a multi-layered upper B formed in the same manner as the slipper sole A is stacked on top of the slipper sole A, and the outer periphery of this upper B is folded outward, or As shown in the figure, a slipper can be formed by folding it inward and welding it.

Such slippers have a rounded front edge of the upper B that corresponds to the outer circumference of the foot and the outer circumference of the upper surface of the slipper sole A, so that they feel good against the foot and are extremely comfortable to wear.

8 to 14 show other embodiments of the manufacturing method according to the present invention.

As shown in FIG. 8, an upper cover 11 is integrally formed on the outer periphery of the slipper sole original form 1, and this original form 1 also has first, second, third layer bodies 2, Consisting of 3.4,
Only the outer circumference is welded.

Such an original form 1 also has the first and second layer bodies 2 as described above.
, 3, as shown in FIGS. 8 and 9, a cut 5 of a required length is formed, and as shown in FIG. Weld the outer periphery of the upper part and the outer periphery of the upper 11, insert a deodorant layer and an elastic material layer 8 between the layers as necessary, as shown in FIG. 12,
Then, as shown in FIG. 13, an outsole 9 of substantially the same shape is superimposed on the back surface of the portion corresponding to the foot shape, and the outer periphery is heat welded.

After completing the above-described work, the upper 11 is bent along the welded portion, the ends are overlapped and fastened, so that the slipper can be obtained at the same time as the slipper sole is formed.

In addition, if you want to stop the upper 11, you may attach a button to one upper, form a buttonhole in the other upper, and fit the button into this buttonhole, or you can attach a button to each upper. I would like to be able to attach and engage a hook and loop fastener.

In each of the embodiments, the slipper sole is formed from a three-layered original shape, but the original shape may be formed from at least two or more layers.

As described above, according to the present invention, after making cuts in at least one layer of the original slipper sole having a laminated structure in which only the outer periphery is welded and turning this layer over, A comfortable slipper sole with a rounded top surface can be formed by simply stacking the outsole and welding at least the outer periphery. Since an odor agent layer, an elastic material layer, etc. can be inserted, the thickness of the slipper bottom can be adjusted freely.

In addition, after the original layer is turned over, the outsole is overlaid and welded to this layer, so the elastic material layer inserted into the original is stable, and it is easy to process such as cutting as the outsole. A thin single-layer slipper can be used, and a durable slipper sole can be obtained.

Furthermore, in this invention, a laminate consisting of an arbitrary number of layers is welded to a shape along the outer circumference of a foot shape, and simultaneously cut along this welded part to form a slipper sole. The slipper sole original shape can be formed more efficiently than when a plurality of layers are stacked one on top of the other and the outer periphery is thermally welded.

Further, the method according to the present invention includes a step of forming a slipper sole original shape, a step of forming a cut in the slipper bottom original formed by this step, a step of turning over the layered body along the cut, and a step of turning the layered body inside out. Since the slipper sole can be formed through four steps of stacking and thermally welding the outsole, the slipper sole can be formed efficiently and productivity can be improved.

[Brief explanation of the drawing]

1 to 5 show the process sequence of the manufacturing method according to the method of the present invention, in which FIG. 1 is a partially cutaway plan view, and FIG. 2 is along the line ■-■ in FIG. A cross-sectional view along the line, Fig. 4,
5 is a sectional view, FIG. 6 is a partially cutaway side view of a slipper sole formed by the same method as above with the upper attached, and FIG. 7 is a partially cutaway side view showing a modification of FIG. 6. Figure, 8th
Figures 13 to 13 show other embodiments of the method according to the present invention in the order of steps, with Figure 8 being a partially cutaway plan view and Figure 9
The figure is a sectional view taken along the line ■■-■■ in Fig. 8, Fig. 10 is a sectional view, Fig. 12 is a partially cutaway plan view, and Fig. 13 is a sectional view taken along the line ■■-■■ in Fig. 12. Cross-sectional view, Figure 13 is a cross-sectional view, 1st
FIG. 4 is a perspective view of a slipper formed using the slipper sole obtained by the above method. 1... Slipper bottom original form, 2... First layer body, 3... Second layer body, 4... Third layer body, 5... ...cut, 6... welded part, 7...
... Welded part, 11 ... Upper cover.

Claims (1)

[Claims] 1. Heat weld a laminate made by overlapping an arbitrary number of layers into a shape that follows the outer circumference of the foot shape, and simultaneously cut along the heat welded part to form a slipper sole prototype, and cut the surface layer of this prototype shape. A cut of the required length is made in at least one of the layered bodies, and the layered body with the cut formed therein is turned over and stacked on the back of the remaining layered bodies, and an outsole of approximately the same shape is made on the front side of the turned over layered body. A method of manufacturing a slipper sole, characterized by stacking and heat welding.