JP2615341B2 - Manufacturing method of flat type slippers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type slipper and a method for producing the same. More specifically, the present invention relates to slippers that are disposable, for example, in vehicles such as long-distance buses and airplanes, ordinary homes, hotels or hospitals, and a method of manufacturing flat slippers that can be mass-produced at low cost.

[0002]

2. Description of the Related Art A slipper generally refers to an indoor cover made so that the instep of the foot can enter deeply, and is composed of a sole plate serving as a sole and an instep cover for inserting a toe and covering the instep. The bottom plate and the upper cover are required to have different use conditions. That is, the bottom plate is required to have a certain degree of rigidity and cushioning so that it is easy to walk, and the upper is required to have a structure in which the toe pushing hole can be kept open so that the toes can easily enter.
Therefore, a three-dimensional tubular structure is inevitably required for the upper, and simple methods such as planar bonding are not used for fixing the bottom plate and the upper, and intermittent manufacturing that requires manual operations such as sewing or high-frequency sewing machine bonding. The formula has been taken.

[0003] In addition, many materials such as leather, rubber, vinyl, synthetic leather, non-woven fabric such as fabric and felt, towel fabric, and synthetic resin foam material are used for slippers from high-grade products to low-grade products. And, the bottom plate and the upper cover are formed of materials adapted to each of the above different requirements. Therefore, the fact that different materials must be joined means that the slipper manufacturing method must intermittently incorporate manual work.

[0004]

As described above, the slipper manufacturing method requires an intermittent manual operation, and has a problem that the manufacturing cost is extremely high.

Further, since the relatively rigid upper has a cylindrical shape, it is bulky, requires a large volume for storage, and has a large amount of waste not only in transportation costs but also in storage places such as warehouses. There is a problem that costs other than the manufacturing cost of the product itself are high, and it is difficult to provide the product at low cost.

[0006] In view of the above circumstances, the present invention is easy to join the bottom plate and the upper cover, can use an automatic bag making machine, can be mass-produced at low cost, and requires no space for storage. An object is to provide a mold slipper and a method for producing the same.

[0007]

Means for Solving the Problems A flat-type slipper according to the production method of the present invention has a bottom plate having at least the upper surface of which has thermoplasticity, and covers the entire upper surface of the bottom plate and has a thermoplastic surface on the bottom plate. A cover member made of a thermoplastic synthetic resin that is partially heat-welded, and the cover member is bent to form a gusset portion having a convex shape upward along a longitudinal direction thereof, The bottom plate and the cover member are heat-welded at least over the entire outer peripheral edge of the cover member, and an opening for foot insertion is formed at a substantially central portion of the cover member.

Preferably, the cover member is formed of a non-woven fabric made of a thermoplastic resin.

Preferably, the bottom plate is made of thick cardboard and a thermoplastic synthetic resin layer formed on one side of the thick cardboard.

[0010] Further, it is more preferable that the thermoplastic synthetic resin layer is formed of a nonwoven fabric made of a thermoplastic resin.

In addition, it is preferable that a notch or a perforation is formed at the rear end of the flat type slipper to form a tongue piece that can be used as a shoehorn.

The method of manufacturing the flat type slipper of the present invention comprises the steps of (a)
Sheet material at least the upper surface of which has thermoplasticity,
Prepared a cover member box-pleated gusset portion of at least one is formed by being bent, the cover member onto the thermoplastic surface of the (b) the sheet material
The sheet material and the cover member are overlapped so as to cover the entire upper surface of the sheet material, and along the substantially predetermined outer shape of the slipper in a state where the gusset portion is located in the center portion along the longitudinal direction.
Heat welding at least over the entire outer periphery of the cover member ; (c) substantially at the center of the predetermined outer shape of the slipper;
The foot opening is formed by cutting only the cover member and cut or punched into a predetermined slipper shape.

[0013]

According to the flat type slipper of the present invention, the so-called upper part is folded in a box fold, so that the foot opening can be easily opened, and it can be stored in a plane so that no space is required for storage. . Furthermore, the manufacture is very simple. Thus, not only are material and manufacturing costs low, but also transportation and storage costs are very low.

If a tongue piece is provided, it can be used as a shoehorn, which is convenient when changing to shoes.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A flat type slipper of the present invention and a method for manufacturing the same will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of the flat slipper of the present invention, FIG. 2 is a plan view showing another embodiment of the flat slipper of the present invention, and FIG. 3 is a view of the flat slipper of FIG. FIG. 4 is a perspective view showing a usage example, and FIG. 4 is an explanatory view showing one embodiment of a method for manufacturing a flat type slipper of the present invention.

As shown in FIG. 1, the flat type slipper 1 comprises:
It is composed of a bottom plate 2 and a cover member 3.

The bottom plate 2 is a rectangular plate having four rounded corners.

The cover member 3 is formed of a nonwoven fabric made of a thermoplastic synthetic resin, and covers the entire upper surface of the bottom plate 2.
Utotomoni heat welding (hereinafter, referred to as heat-sealing) Te <br/> by a, it is stuck before <br/> Symbol bottom plate 2 over the entire circumference of at least the outer peripheral edge of the cover member 3.

Therefore, the upper surface of the bottom plate 2 (the surface to which the cover member 3 is adhered) has thermoplasticity. That is,
The bottom plate 2 can be formed entirely from a thermoplastic resin sheet such as a polyolefin resin, for example, by using a material obtained by coating the upper surface of a cardboard with a thermoplastic resin or laminating a thermoplastic resin film. Is also good.

In this embodiment, the basis weight is 350 to 550 g /
thick upper surface of the cardboard mount 2a of m ^2, a thickness of 15 to 5
A laminate obtained by laminating a thermoplastic synthetic resin film (hereinafter simply referred to as a film) 2b of 0 μm polyethylene or the like is used. If a nonwoven fabric made of a thermoplastic synthetic resin fiber is used instead of the film 2b, a slipper that is soft and excellent in hygroscopicity and that is comfortable to wear can be obtained.

Further, the cover member 3 is made of a nonwoven fabric that is soft and has excellent breathability and moisture absorption.

The cover member 3, left and right symmetric and parallel, so to speak has a box pleated gusset portion 4. That is, the gusset part 4 is formed such that the front side ridges 4a face the left and right ends, and the rear side ridges 4b face the center.
The ridges 4a are attached to the bottom plate 2 such that the ridge lines of the folds 4a face the longitudinal direction of the bottom plate 2. In FIG. 1, a cover member 3 having the same size as the bottom plate 2 is used, and the four sides 5a, 5b, 5c, 5d and a portion 6 from a portion slightly corresponding to the heel of the foot from the center are heat-sealed to the bottom plate. I have. By making a cut 7a in the center of the cover member 3 so as not to reach the bottom plate 2 in the width direction, an upper cover 8 having an opening 7 into which a toe is inserted is formed. It is preferable that the cut 7a for forming the opening 7 does not cover the seal portions 5b and 5c on both sides as shown in FIG. This part is
This is because, for example, the cover material is easily peeled off by folding or the like and needs to be protected. Also, if the cuts are extended to the seal portions 5b and 5c, the vertical pressure due to walking is concentrated here, and if the adhesive force is weak, there is a risk of peeling.

Further, since the cover member 3 needs to be heat-sealed to the bottom plate 2, it is formed of a film, woven fabric or non-woven fabric made of a thermoplastic synthetic resin, and particularly has a sufficient adhesive strength at the time of heat sealing. It is preferable to use a nonwoven fabric made of a polyolefin-based synthetic resin (for example, Unitika Co., Ltd., trade name: Elves), which does not fray at the cut end and has excellent texture, breathability and hygroscopicity. It is also preferable to apply a trademark, a pattern, or the like to a desired portion such as the upper cover 8 of the cover member 3 or use a colored cover member from the viewpoint of improving the commercial value.

Further, as shown in FIG. 2, two substantially parallel cuts 9a and 9 are formed on the rear end side (or on the heel side) 5d.
By forming the strip-shaped tongue piece 10 at the center of the heel by providing the b, the tongue piece 10 can be used instead of a shoehorn, which is convenient when changing from the slipper 1 to shoes (FIG. 3). reference). The cut may be a perforation formed to be cuttable. Further, it is possible to make a perforation so that the tongue piece 10 can be cut off from the main body. However, it is more economical not to cut it because it can be used again. In addition, the position and number of cuts are shown in FIGS.
However, the present invention is not limited to three, and for example, it is also possible to make the rear end side part a tongue piece part with only one cut.

Next, a method of manufacturing the flat type slipper of the present invention will be described with reference to FIG.

First, as shown in FIG. 4A, a rectangular bottom plate 2 formed by laminating a mount 2a and a film 2b is formed.
Is prepared, and the cover member 3 made of nonwoven fabric on which the gusset portion 4 is formed by folding it into a box fold is prepared.

Next, as shown in FIG. 4 (b), the bottom plate 2
Top cover member 3 so as to cover the entire superposed on the bottom plate 2 of the film 2b surface, further the outer peripheral edge of the cover member 3 of the
First, both sides 5b and 5c of each other are stuck by heat sealing in order to heat seal the whole circumference of .

Subsequently, as shown in FIG. 4C, the front and rear sides 5a and 5d and the part 6 slightly closer to the heel than the center are heat-sealed in the lateral direction. Next, the substantially central portion of the cover member 3 is cut laterally (so-called half cut) so as not to cut the bottom plate 2. In this case, the cutting line should not reach the seal portions 5b and 5c on both sides.

Finally, as shown in FIG. 4D, four corners of the attached cover member 3 and the bottom plate 2 are trimmed to be round. It should be noted that there is no problem even if the order of the trimming and the cutting of the central portion of the cover member 3 is interchanged.

When forming the tongue piece 10 shown in FIGS. 2 and 3, the cutting may be performed in FIG. 4C or 4D.

Since the formation of the gusset of the cover member and the heat sealing between the bottom plate and the cover member in the above steps can be performed by a conventionally known automatic bag making machine, the manufacturing process is simple and short.

Although the above manufacturing method is described for one slipper, the present invention is not particularly limited to the manufacturing method for one slipper at a time. Rather, it is preferable to manufacture a plurality of slippers simultaneously because cost can be reduced.

In such a case, a bottom plate having a length in which a plurality of bottom plates are connected in the longitudinal direction and a cover member having the same length (a gusset portion is formed along the longitudinal direction)
Are overlapped, and heat-sealed laterally at both sides and at the length of one slipper, and further heat-sealed at a position slightly closer to the heel than the center of each slipper,
Half cut the center. Finally, a plurality of slippers are manufactured by punching or cutting into a predetermined shape.

As described above, the slippers may be manufactured not only in a state of being connected in the longitudinal direction but also in a state of being connected in the vertical and horizontal directions, for example. That is, a cover member having a plurality of parallel gusset portions formed thereon is superimposed on a film surface of a wide bottom plate material, a predetermined portion is continuously heat-sealed, cut into half, cut into a predetermined shape, and cut.

In the above embodiment, the part 6 slightly heel than the center is heat-sealed. However, the present invention also includes a slipper which does not have the heat-sealing of the part 6 and a manufacturing method thereof. The slipper having no heat seal portion at the portion 6 can use both the front and rear of the cover member 3 as the upper cover 8. That is, the foot can be put on any person and put on. On the other hand, the slipper having the heat seal of the portion 6 does not turn up the heel side of the cover member 3 when folded in two for carrying, for example, so that it is easy to put a foot in use and more comfortable to wear. It will be.

Since the slippers constructed as described above can be provided at very low cost, they can be sold at vending machines at airports, long-distance bus terminals, limited express trains, hospitals, and the like, or can be provided free of charge. Are suitable.

[0038]

As described above, according to the flat type slipper and the method of manufacturing the same according to the present invention, the bottom plate and the cover member can be easily joined by heat sealing, so that mass production is possible, and low cost material cost and In combination, manufacturing costs can be significantly reduced.

Further, since the upper has a box-folded shape, it is easy to open the opening, and since it can be stored in a plane, a large storage space is not required. Therefore, it is possible to reduce transportation costs and storage costs.

Further, if a tongue piece is provided, it is convenient to change into shoes.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a flat type slipper according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the flat type slipper of the present invention.

FIG. 3 is a perspective view showing an example of use of the flat slipper of FIG. 2;

FIG. 4 is a perspective view showing one embodiment of a method for manufacturing a flat type slipper of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat-type slipper 2 Bottom plate 3 Cover member 4 Gusset part 4a, 4b Fold mountain 4c Ridge ridge line 5a, 5b, 5c, 5d Side 7 Opening 7a Cut 8 Upper cover 9a, 9b Cut 10 Tongue piece

Claims (1)

(57) [Claims] (A) A sheet material having at least an upper surface having thermoplasticity, and a cover member having at least one box-folded gusset portion formed by being bent are provided, (b) A cover member is overlapped on the thermoplastic surface of the sheet material so as to cover the entire upper surface of the sheet material, and along a substantially predetermined outer shape of the slipper in a state where a gusset portion is located along a longitudinal direction at a central portion thereof. Heat-welding the sheet material and the cover member at least over the entire outer periphery of the cover member; and (c) substantially at the center of the slipper in a predetermined outer shape,
A method of manufacturing a flat type slipper, characterized in that a foot insertion opening is formed by cutting only the cover member and cut or punched into a predetermined slipper shape.