JPH11342003A - Flat type simple slippers and manufacture of flat type simple slippers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide simple slippers capable of being constituted without adhering an instep cover part and a bottom plate part whose strong adhesion is considered to be difficult and reinforcing both side edge parts of the instep cover part of the sippers so as not to be peeled off even by pressure concentration in a vertical direction by walking. SOLUTION: A foot inserting opening part 6 for dividing a surface side cover sheet part into the instep cover part 4 and a heel step-on part 5 is formed at the surface side cover sheet part 1 of a cover sheet member 3 in a flat wrapping form a bottom part reinforcing member 30 is wrapped inside the cover sheet member 3 in a non-adhered state and these simple slippers are constituted. Also, parts functioning as both side edge parts 4a and 4a of the instep cover part 4 at the outer peripheral edge part of the cover sheet member 3 are turned to bent contour shape parts 10 formed by bending the sheet and both end parts of the foot inserting opening part 6 are positioned near the bent contour shape parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple disposable flat slipper mainly used for guests in hotels and hospitals and a method for manufacturing the flat simple slipper.

[0002]

2. Description of the Related Art A slipper generally used as indoor footwear is formed to have a sole plate approximately the size of a sole and a sole plate member for supporting the back of the foot, and a toe or instep of the foot. And an upper cover portion made of an upper cover member to cover,
Usually, the peripheral portion of the upper cover member is attached to a predetermined position of the bottom plate member by fixing means according to the material of the bottom plate member and the upper cover portion, such as heat bonding by heat sealing, bonding by an adhesive, or sewing. I have. The bottom plate member is preferably made of a rigid material capable of holding a slipper shape and having a certain thickness and having a cushioning force against impact for the purpose of supporting the back surface of the foot, and the instep covering member is preferably a toe of the foot. It is desirable that the foot be made of a soft material with little uncomfortable feeling for the purpose of covering the upper part, but the thickness may be relatively thin. As a material for a so-called simple disposable slipper which is thrown away once or several times, a material which can achieve the above-mentioned purpose and is inexpensive is required, and as a bottom plate member, for example, thick cardboard, cushioning property A certain resin material, a soft non-woven fabric, a laminate of paper and cloth, and the like, and a soft thermoplastic non-woven fabric are used as the upper cover member. As described above, the bottom plate member and the upper cover member are often made of different materials having different thicknesses in view of their purposes and functions. Further, as described above, the bottom plate member is often formed by overlapping various sheet materials, but a portion where the overlapping portions of the bottom plate member are fixed to each other, and a peripheral portion of the upper cover member further attached to the bottom plate member. The material to be fixed and the wall thickness become non-uniform at the place where the is fixed. It is very difficult to firmly bond different materials having different thicknesses or uneven thicknesses at the same time by, for example, thermal bonding, especially since the upper cover member is easily peeled off from the bottom plate member. The fact is that these bonding steps are performed by a complicated sewing operation. In addition, the simple slipper formed by fixing the upper cover member to the bottom plate member cannot replace only the bottom plate member according to the purpose of use.

[0003] Also, a strong vertical joint pressure is applied to the joint between the upper cover portion and the bottom plate portion of the slipper, especially the joint portion between the rear end sides of both side edges of the upper cover portion and the bottom plate portion. Therefore, when the bonding strength of the joint is weak, there is a possibility that the joint may be separated.

[0004] If this joining step is performed by a complicated sewing operation in order to prevent such peeling of the upper cover portion and the bottom plate portion, there is a problem that productivity is poor and manufacturing cost is increased.

[0005]

As described above, a major factor that determines the quality of a product of the adhesive type simple slipper of the type in which the upper cover member is bonded to the bottom plate member is whether or not the adhesiveness of the upper cover member to the bottom plate member is good. Although it is said that the present invention separates the slipper main body and the plate-shaped bottom reinforcing member made of a flat wrapping-type covering sheet member including the upper cover portion from a flat wrapping-type covering sheet member. The present invention provides a simple slipper in which a plate-shaped bottom reinforcing member is wrapped in a non-adhered state in a slipper main body made of the above, and the upper cover member and the bottom plate member, which are made of different materials and are difficult to adhere, are not bonded. . It is easy to select the material and thickness of the bottom plate member by forming a simple slipper without bonding the instep covering member and the bottom plate member, which are considered to be difficult to firmly bond, for example, forming an uneven portion on the surface An object of the present invention is to provide a simple slipper that can employ a bottom plate member. Another object of the present invention is to provide a simple slipper in which only the bottom plate member can be replaced with respect to the slipper. Further, there is provided a simple slipper that can be used as a slipper insole, which is used by inserting only a slipper main body made of a covering sheet member that does not wrap a bottom plate member into a normal vinyl or felt slipper. It is. Further, an object of the present invention is to provide a simple slipper in which portions functioning as both side edges of the upper cover portion of the slipper are particularly strengthened so as not to peel off even in the case of vertical pressure concentration due to walking. . In particular, the pressure in the vertical direction due to walking is concentrated, and the opening side edge of the instep covering part where the force for separating the part covering the instep and the bottom side pressed by the foot is strongly applied and the bottom side pressed by the foot It is reinforced so as not to peel off the boundary between the two.
Further, an object of the present invention is to provide both sides of the instep covering part, in particular, an opening side edge of the instep covering part in which a force for strongly separating the part covering the instep and the bottom side pressed by the foot is strongly applied by walking. It is an object of the present invention to provide a manufacturing method suitable for continuously and high-speed mechanically manufacturing a novel simple slipper in which a boundary with a bottom side pressed by a foot is not easily separated.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a flat packaging form having a surface-side covering sheet portion (1) and a bottom-side covering sheet portion (2) each having a slipper contour shape. And a cover sheet member (3) formed on the front side cover sheet portion (1) of the cover sheet member (3). A slipper main body (20) is formed by an opening for foot insertion (6) divided into a part (5) and the covering sheet member (3) mainly formed of the slipper thus formed.
A flat bottom reinforcing member (30) formed approximately in the size of a sole between the front side covering sheet portion (1) and the bottom side covering sheet portion (2) inside the inside; Provide mold slippers. The simple slipper provided here comprises a slipper main body (20) composed of a flat wrapped covering sheet member (3) including an upper cover (4) and a plate-shaped bottom reinforcing member (30) as separate bodies. By wrapping the plate-like bottom reinforcing member (30) in a slipper main body (20) composed of a cover sheet member (3) in a flat wrapping form, the plate-like bottom cover (4), which is difficult to adhere, and the plate-like bottom reinforcing member (30) Bottom reinforcement member (3
0) is provided without bonding.

The present invention also provides a cover sheet member (3) formed in a flat package form having a front side cover sheet portion (1) and a bottom side cover sheet portion (2) having a slipper contour shape by a sheet member. The cover sheet member (3) is formed on the front cover sheet portion (1), and the front cover sheet portion (1) is divided into an upper cover portion (4) and a heel tread portion (5). The slipper main body (20) is formed by the foot insertion opening (6), and the outer peripheral edge of the covering sheet member (3) is flattened so that both side edges (4a) of the instep covering portion (4) of the slipper are formed. , 4a) formed by folding a sheet functioning as a folded contour shape portion (10, 10);
An adhesive contour portion (1) formed by adhering the outer peripheral edge portion except the bent contour portion along the slipper contour shape.
1), and the both end portions (6a, 6a) of the foot opening (6) are formed on both side edges (4) of the upper cover portion (4).
a, 4a) is formed so as to be located near the bent profile portion (10, 10) functioning as the front side cover sheet portion (1) in the cover sheet member (3). A plate-like bottom reinforcing member (30) having an outer shape smaller than the bonding contour shape portion (11) and formed substantially in the size of the sole between the bottom side covering sheet portion (2) is provided outside the bottom reinforcing member. A flat type simple slipper characterized by being packaged in a non-adhered state in which a peripheral portion is separated from the adhesive contour shape portion (11). The bonding means for forming the bonding contour portion (11) by bonding the outer peripheral edge portion excluding the bent contour portion (10, 10) along the slipper contour shape may be a bonding method using an adhesive. However, it is preferable to use a thermoplastic material as the sheet member, and to use an adhesive method such as heat sealing or ultrasonic bonding.
The simple slipper provided here comprises a slipper main body (20) composed of a cover sheet member (3) in a flat wrapping form including an upper cover (4) and a plate-shaped bottom reinforcing member (20) as separate bodies. A plate-like bottom reinforcing member (3) is provided in a slipper main body (20) composed of a cover sheet member (3) in a flat package form.
0) is wrapped in a non-adhered state, and the outer peripheral edge of the covering sheet member (3) is flattened, and both side edges (4a, 4a, 4a)
The portion functioning as a bent contour shape portion (10, 10) formed by bending a sheet, and both end portions (6a, 6a) of the foot opening (6) are covered with the upper cover portion (4). The upper cover is formed so as to be located close to the bent contour portions (10, 10) functioning as both side edges (4a, 4a) of the upper part, in particular, the vertical pressure concentration due to walking is remarkable. The boundary between the rear end side and the bottom surface of both side edges of the portion is strengthened so as not to be peeled off.

The present invention also relates to a covering sheet member (3) formed in a flat packaging form having a surface-side covering sheet portion (1) and a bottom-side covering sheet portion (2) having a slipper contour shape by a sheet member. The cover sheet member (3) is formed on the front cover sheet portion (1), and the front cover sheet portion (1) is divided into an upper cover portion (4) and a heel tread portion (5). The slipper main body (20) is formed by the foot insertion opening (6), and the outer peripheral edge of the covering sheet member (3) is flattened and the toe side front edge (4) of the slipper is formed.
b) and a folded contour shape portion (10, 10) formed by folding the sheet functioning as the heel-side rear edge portion (5a).
And an adhesive contour portion (11) formed by adhering an outer peripheral edge portion excluding the bent contour portion along the slipper contour shape, and both end portions (6) of the foot insertion opening (6). 6a, 6a) are formed so as to be located near the adhesive contour shape portion (11), wherein the front side cover sheet portion (1) and the bottom side cover sheet portion in the cover sheet member (3) are provided. (2) The adhesive contour shape portion (11) during
A plate-shaped bottom reinforcing member (30) having a smaller outer shape and formed substantially in the size of the sole is brought into a non-adhered state in which the outer peripheral edge of the bottom reinforcing member is separated from the adhesive contour portion (11). A flat type simple slipper characterized by being packaged is provided. The bonding means for forming the bonding contour portion (11) by bonding the outer peripheral edge portion excluding the bent contour portion (10, 10) along the slipper contour shape may be a bonding method using an adhesive. However, it is preferable to use a thermoplastic material as the sheet member, and to use an adhesive method such as heat sealing or ultrasonic bonding. The simple slipper provided here comprises a slipper main body (20) composed of a flat wrapped covering sheet member (3) including an upper cover (4) and a plate-shaped bottom reinforcing member (30) as separate bodies. , A slipper main body (2) composed of a cover sheet member (3) in a flat package form.
0), a plate-shaped bottom reinforcing member (30) is packaged in a non-adhered state, and the outer peripheral edge of the covering sheet member (3) is flattened to the toe side of the slipper. The portions functioning as the front edge portion (4b) and the heel-side rear edge portion (5a) are formed as bent contour shapes (10, 10) formed by bending a sheet, so that pressure on the toe portion due to walking can be reduced. Toe side leading edge of slipper to be added (4b)
Is strengthened so as not to peel off. This simple slipper, in which the toe-side front edge portion (4b) of the slipper is bent to form a bent contour shape portion (10), is particularly used when only the slipper main body is inserted into a normal slipper and used as a slipper insole. It is effective.

The present invention also relates to a covering sheet member (3) formed in a flat packaging form having a surface-side covering sheet portion (1) and a bottom-side covering sheet portion (2) having a slipper contour shape by a sheet member. The cover sheet member (3) is formed on the front cover sheet portion (1), and the front cover sheet portion (1) is divided into an upper cover portion (4) and a heel tread portion (5). A slipper main body (20) is formed by the foot opening (6), and an adhesive contour formed by bonding the outer peripheral edge of the covering sheet member (3) in a flat state along the slipper contour. (11) wherein both ends (6a, 6a) of the foot opening (6) are formed so as to be located near the bonding contour shape portion (11). Front side covering sheet part (1) in sheet member (3) Bottom cover sheet portion the adhesive contour portion between the (2) (11) has a smaller outer shape formed approximately to the size of the foot plate-like bottom reinforcing member (30)
The outer peripheral edge of the bottom reinforcing member is connected to the adhesive contour shape portion (1).
A flat simple slipper characterized by being packaged in a non-adhered state released from 1). The bonding means for forming the bonding contour portion (11) may be a bonding method using an adhesive, but a bonding method such as heat sealing or ultrasonic bonding is used by using a thermoplastic material as the sheet member. Is preferred. The simple slipper provided here comprises a slipper main body (20) composed of a flat wrapped covering sheet member (3) including an upper cover (4) and a plate-shaped bottom reinforcing member (30) as separate bodies. By wrapping a plate-like bottom reinforcing member (30) in a non-adhered state in a slipper main body (20) composed of a cover sheet member (3) in a flat wrapping form, the instep covering member and the plate are difficult to adhere. The present invention is to provide a simple slipper configured without bonding a bottom reinforcing member having a shape like a letter.

Further, the present invention provides a cover sheet formed by a sheet member made of a thermoplastic material into a flat wrapping form having a surface-side cover sheet portion (1) and a bottom-side cover sheet portion (2) having a slipper contour shape. A member (3) and the front side cover sheet portion (1) of the cover sheet member (3), and the front side cover sheet portion (1) is formed by the upper cover portion (4) and the heel tread portion (5). The slipper main body (20) is formed by the foot insertion opening (6), which is divided into two parts, and the outer peripheral edge of the cover sheet member (3) is flattened to the upper cover part (4) of the slipper. Folded contour portions (10, 10) formed by folding a sheet functioning as both side edges (4a, 4a), and an outer peripheral edge excluding the folded contour portions are thermally bonded so as to follow the slipper contour shape. Heat-bonded contours 11), and the bent contour shape portion which functions as both side edges (4a, 4a) of the upper cover portion (4) at both ends (6a, 6a) of the foot insertion opening (6). (10, 10) is formed so as to be located near the rear end portion, and further, the front side covering sheet portion (1) in the covering sheet member (3) of the slipper main body (20) and the bottom side A plate-like bottom reinforcing member (30) made of a thermoplastic material and having a width substantially equal to the width of the sole of the foot is interposed between the cover sheet portions (2). At least at a position where a predetermined starting play width (L3, L3) for starting up the side edges (4a, 4a) from both side edges (4a, 4a) of the upper cover (4) is provided. And the bottom reinforcing member (3)
0) The outer peripheral edges in the longitudinal direction located on the toe side and the heel side are sandwiched between the front side covering sheet part (1) and the bottom side covering sheet part (2) by the heat bonding contour shape part (11). The present invention provides a flat type simple slipper characterized in that it is packaged in a bonded state in which it is thermally bonded. The bent contour portion (1)
The bonding means for bonding the outer peripheral edge except for (0, 10) along the slipper contour to form the heat-bonding contour (11) may be a bonding method by heat sealing.
A bonding method using ultrasonic bonding is preferable. In the simple slipper provided here, the outer peripheral edge of the covering sheet member (3) is flattened, and the portions functioning as both side edges (4a, 4a) of the instep covering portion (4) of the slipper are formed into sheets. It is a bent contour shape part (10, 10) formed by bending, and both ends (6a, 6) of the foot insertion opening (6).
a) the bent profile portions (10, 10) functioning as both side edges (4a, 4a) of the upper cover portion (4);
By forming it near the rear end, the boundary between the rear end side and the bottom surface of both side edges of the upper cover, where the vertical pressure concentration due to walking is particularly remarkable, is particularly prevented. It has been strengthened. The simple slipper provided here is suitable for continuous and high-speed machine production.

The outer peripheral edge of the above-mentioned covering sheet member (3) is bent by bending a sheet which functions as both side edges (4a, 4a) of the instep covering portion (4) of the slipper in a flat state. The flat type simple slipper having the contoured portion (10, 10) has a flat shape at the center in the longitudinal direction of the sheet, and both side edges (4a, 4a, 4) of the upper cover portion (4) of the slipper.
4a), the front side cover sheet portion forming area (4) surrounded by a parallel extension of the both side edges (4a, 4a).
1) and a bottom-side covered sheet portion forming area (42, 42) provided with a predetermined width on both sides of the front-side covered sheet portion forming area (41) and having respective ends joined to each other. A long sheet member (40) made of a thermoplastic material formed in a sheet width, wherein the front side covering sheet portion forming range (41) of the sheet member (40) is formed in the front side covering sheet portion forming range; The foot insertion opening (6), which divides (41) into an instep covering portion (4) and a heel stepped portion (5) constituting a slipper unit along the longitudinal direction of the seat, has a foot insertion opening (6). ) Are formed at predetermined intervals for each slipper forming unit so that both end portions (6a, 6a) are located near side edges of the front side cover sheet forming range (41). In the forming step and the step for forming the opening for the foot A plate-shaped bottom reinforcing member (30) formed approximately in the size of the sole is provided in the front side cover sheet portion forming area (41) of the sheet member (40) having the mouth portion (6) formed sequentially. Bottom reinforcing member overlapping step in which the bottom reinforcing member (30) is overlapped so as to correspond to the formation position of the foot insertion opening (6) which is divided into the upper cover portion (4) and the heel tread portion (5). And a bottom reinforcement in which a foot insertion opening (6) is sequentially formed in the foot insertion opening forming step, and is overlapped with the front side cover sheet forming area (41) in the bottom reinforcing member overlapping step. In order to package the member (30) with the sheet member (40), the sheet member (4)
0) in a flat state, the both side edges (4a, 4a) functioning as both side edges (4a, 4a) of the upper cover portion (4) of the slipper.
The front side covering sheet portion in which the longitudinal side ends of the sheet member are bent along the parallel extension line of a) such that the both side ends are joined to each other to form a foot opening (6). A bending step of forming (1) and a bottom-side cover sheet portion (2) composed of each bent piece, and a joint portion of each bent piece bent in a state where the bottom reinforcing member (30) is packaged in the bending step; Forming a flat tubular covering having a front-side covering sheet portion (1) and a bottom-side covering sheet portion (2) by heat bonding, and after the bending step, Before and after or simultaneously with the step of forming the cover-like body, both ends (6) of the opening for foot insertion (6) formed in the surface-side cover sheet (1).
a, 6a) are both side edges (4a, 4a) of the upper cover (4).
a) The side edges (4a, 4a, 4b) of the upper cover (4) are located near the rear end of the bent portion functioning as a).
4a) The surface-side covering sheet portion (1) and the bottom-side covering sheet portion (2) excluding the bent portion functioning as a predetermined slipper contour shape are separated from the outer peripheral edge of the bottom reinforcing member (30). A step of forming a heat-bonding contour shape portion for heat bonding along the line, and cutting to remove the sheet member (40) outside the heat-bonding contour shape portion (11) which is heat-bonded in the heat bonding contour shape portion forming step. By the cutting process,
It can be manufactured continuously and at high speed.

In the case of manufacturing a simple slipper comprising only the slipper main body (20) in which the bottom reinforcing member (30) is not packaged, it can be achieved by omitting the bottom reinforcing member overlapping step from the above-mentioned step. .

Further, instead of the above-mentioned bottom reinforcing member overlapping step in which a plate-like bottom reinforcing member (30) formed substantially in the size of the sole is overlapped with the sheet member (40), a sole width is provided. A long, sheet-like bottom reinforcing sheet member (31) made of a thermoplastic material having substantially the same width as that of the sheet member (40) is used as the bottom reinforcing sheet member (31). Side cover sheet part formation range (4
In 1), both side edges of the bottom reinforcing sheet member (31) serve as both side edges (4a, 4a) of the upper cover portion (4) of the slipper, and are parallel extension lines (L1) of the both side edges. , L
A bottom portion provided with a predetermined rising play width (L3, L3) for raising the side edge portions (4a, 4a) from 1) to be overlapped along the longitudinal direction of the sheet member (40). A reinforcing sheet member overlapping step is provided, and the sheet member is sandwiched and thermally bonded between the front-side covering sheet section (1) and the bottom-side covering sheet section (2) in the subsequent step of forming a heat-bonding contour shape section. The both ends in the longitudinal direction, which are located on the toe side and the heel side of the bottom reinforcing sheet member (31), together with the sheet member (40), are placed outside the heat-bonded contour (11) in the next cutting step. It can be manufactured by cutting to remove existing parts. In this manufacturing method,
Machine production of simpler slippers reinforced more continuously and at higher speeds so that the boundary between the rear end side and the bottom side of both side edges of the upper of the slipper, where vertical pressure concentration due to walking is remarkable, is not separated. can do.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A flat simple slipper and a method for manufacturing the flat simple slipper according to the present invention will be described with reference to the accompanying drawings. 1 to 13 show a flat type simple slipper according to the present invention. The configuration common to the flat type simple slippers shown in these drawings is a coating sheet member 3 formed in a flat packaging form having a surface-side coating sheet portion 1 and a bottom-side coating sheet portion 2 having a slipper contour shape.
And the front side cover sheet portion 1 of the cover sheet member 3
A slipper main body 20 is formed by a foot-inserting opening 6 that divides the front-side covering sheet portion 1 into an instep covering portion 4 covering a toe and an instep and a heel stepped portion 5 which is stepped on with a heel. A plate-like bottom reinforcing member formed between the surface-side covering sheet portion 1 and the bottom-side covering sheet portion 2 in the covering sheet member 3 of the slipper main body 20 formed as described above, and having approximately the size of a sole. 30 was packaged. 1 to 10
The simple slipper shown in FIG. 1 has a slipper main body 20 composed of a flat wrapped covering sheet member 3 including an upper cover 4 and a plate-shaped bottom reinforcing member 30 as separate bodies, and the flat wrapped covering sheet member 3 is provided. By bonding the plate-shaped bottom reinforcing member 30 and the cover sheet member 30 in a non-adhered state in the slipper main body 20 made of the following, strong adhesion is difficult by an adhesion method using an adhesive or a heat sealing method. The upper cover 4 and the plate-shaped bottom reinforcing member 30 are not bonded. The simple slipper shown in FIGS. 1 to 10 manually inserts the bottom reinforcing member 30 wrapped in the covering sheet member 3 of the slipper main body 20 from the opened foot insertion opening 6. And may be packaged in a mechanical manufacturing process. Further, the simple slipper shown in FIGS.
The slipper main body 20 that does not include the bottom reinforcing member 30 in the covering sheet member 3 can be used as a simple slipper. Alternatively, the slipper insole can be inserted into a normal vinyl slipper or the like. Can also be used. In the simple slippers shown in FIGS. 1 to 13, a curved cut is illustrated as the foot insertion opening 6. However, the present invention is not limited to this. What is necessary is just what was formed.

In the flat type simple slipper shown in FIGS. 1 to 4, the front side cover sheet portion 1 and the bottom side cover sheet portion 2 having the slipper contour shape are formed by a sheet member made of a heat-weldable material such as a thermoplastic nonwoven fabric. A cover sheet member 3 formed in a flat wrapping form, and formed on the front side cover sheet portion 1 of the cover sheet member 3, and the front side cover sheet portion 1 is provided with an upper cover portion 4 and a heel tread portion 5. The slipper main body 20 is formed by the foot insertion opening 6 which is divided into the following. The outer peripheral edge of the covering sheet member 3 functions as both side edges 4a, 4a of the instep covering portion 4 of the slipper in a flat state. Profile shape formed by bending a sheet to be folded, and a heat bonding profile formed by thermally bonding the outer peripheral edge excluding the bent profile shape portion 10, 10 along the slipper profile. And both ends 6a, 6a of the foot insertion opening 6 are formed at the rear ends of the bent contoured portions 10, 10 functioning as both side edges 4a, 4a of the upper cover 4. It is characterized in that it is formed so as to be located close to, and has an outer shape smaller than the heat-adhesive contoured portion 11 between the surface-side covering sheet portion 1 and the bottom-side covering sheet portion 2 in the covering sheet member 3 and is substantially a foot. A plate-shaped bottom reinforcing member 30 made of thick cardboard or the like having a back size is formed by attaching the outer peripheral edge of the bottom reinforcing member 30 to the heat-bonded contoured portion 1.
It is packaged in a non-adhesive state released from 0,10. Slipper contoured surface side covering sheet part 1
The cover sheet member 3 in a flat package form having a bottom-side cover sheet portion 2 and a substantially rectangular sheet member made of a heat-sealable material such as a thermoplastic non-woven fabric is formed by opposing one side end of the sheet member. The two side edges 4 of the upper part 4 of the slipper are held in a flat state so that the both ends are joined to each other.
a flat cylindrical coating is formed by bending each of the bent pieces along the extension line L1 of the both side edges 4a, 4a functioning as a and 4a, and thermally bonding the joined portions of the bent pieces; Out of both bent portions of the flat tubular covering, bent contour shapes 10 and 10 within a range of functioning as both side edges 4a and 4a of the upper cover 4 and a contour of the slipper except for the bent contour shapes 10 are provided. Formed by forming a slipper profile with the heat-bonded profile 11 thermally bonded to the shape, and cutting to remove a sheet portion outside the heat-bonded profile 11 forming the slipper profile. Is done. The simple slipper provided here has a slipper body 20 composed of a flat wrapped covering sheet member 3 including an upper cover 4 and a plate-shaped bottom reinforcing member 30 as separate bodies, and a flat wrapped covering sheet. A plate-shaped bottom reinforcing member 30 is packaged in a non-adhered state in a slipper main body 20 composed of the member 3,
Further, the outer peripheral edge of the covering sheet member 3 is formed as a folded contour shape portion 10, 10 formed by folding a sheet functioning as both side edges 4a, 4a of the instep covering portion 4 of the slipper in a flat state, Both ends 6a, 6a of the foot insertion opening 6 are formed so as to be located near the rear ends of the bent contour portions 10, 10 functioning as both side edges 4a, 4a of the upper cover 4. By doing so, particularly, the boundary between the rear end sides of both side edges of the upper shell 4 and the bottom surface where the pressure concentration in the vertical direction due to walking is remarkable is strengthened so as not to peel off. In addition, when forming the said cylindrical coating | cover, what bonded and joined the overlapped part of each bent piece was shown in figure, but the end part which each folded piece abutted without overlapping like the figure was shown. Can also be bonded by bonding the joined butted ends together by thermal bonding. In addition, although a thermoplastic material is used as a sheet member forming the covering sheet member 3, sheet members made of the thermoplastic material include:
In addition to the sheet member formed entirely of a thermoplastic material, the sheet member also includes, for example, a material made of paper or rayon non-woven fabric coated with a thermoplastic material layer such as a thermoplastic resin. The same applies to the covering sheet member in the embodiment shown in FIG.

The flat type simple slipper shown in FIGS. 5 to 7 has a surface-side covering sheet portion 1 and a bottom-side covering sheet portion 2 having a slipper contour shape by a sheet member made of a thermoplastic material, for example, a thermoplastic nonwoven fabric. A cover sheet member 3 formed in a flat wrapping form, and formed on the front side cover sheet portion 1 of the cover sheet member 3, and the front side cover sheet portion 1 is provided with an upper cover portion 4 and a heel tread portion 5. The slipper main body 20 is formed by the foot insertion opening 6 which is divided into two, and the outer peripheral edge of the covering sheet member 3 functions as a toe-side front edge 4b and a heel-side rear edge 5a of the slipper in a flat state. Profile formed by bending the sheet to be bent, and a heat-bonded profile formed by thermally bonding the outer peripheral edge portions excluding the bent profile portions 10, 10 along the slipper profile. Formed between Jo unit 11, characterized in that both end portions 6a of the foot space opening 6 and 6a are formed so as to be located closer to the heat-bonding contour portion 11,
A thick cardboard or the like having an outer shape smaller than that of the heat-adhesive contoured portion 11 between the front-side covering sheet portion 1 and the bottom-side covering sheet portion 2 in the covering sheet member 3 and having a size substantially equal to a sole. The plate-shaped bottom reinforcing member 30 is connected to the bottom reinforcing member 3.
No. 0 is packaged in a non-adhered state where the outer peripheral edge portion is separated from the heat-adhesive contour shape portion 11. The simple slipper provided here has a slipper body 20 composed of a flat wrapped covering sheet member 3 including an upper cover 4 and a plate-shaped bottom reinforcing member 30 as separate bodies, and a flat wrapped covering sheet. A plate-shaped bottom reinforcing member 30 is packaged in a non-adhered state in a slipper main body 20 made of the member 3, and further, the outer peripheral edge of the covering sheet member 3 is
In a flat state, the toe-side front edge 4b and the heel-side rear edge 5 of the slipper
By folding the sheet functioning as a into the folded contour portions 10, 10, the toe-side front edge portion 4b of the slipper to which the pressure of the toe portion due to walking is applied is strengthened so as not to peel off. I have. This simple slipper is formed by bending the sheet at the toe-side front edge 4b of the slipper to form a bent contour shape portion 10.
This is particularly effective when only the sole is inserted into a normal slipper and used as a slipper insole.

The flat type simple slipper shown in FIGS. 8 to 10 has a surface-side covering sheet portion 1 and a bottom-side covering sheet portion 2 having a slipper contour shape by a sheet member made of a thermoplastic material, for example, a thermoplastic nonwoven fabric. A cover sheet member 3 formed in a flat packaging form;
The slipper main body 20 is formed by the foot insertion opening 6 formed in the front side covering sheet portion 1 and dividing the front side covering sheet portion 1 into an upper cover portion 4 and a heel tread portion 5. The outer peripheral edge of the covering sheet member 3 is formed by a heat-bonded contour portion 11 formed by heat-bonding in a flat state along the slipper contour shape, and both end portions 6a, 6a of the foot opening 6 are formed. The thermal bonding profile portion is formed between the front side coating sheet portion 1 and the bottom side coating sheet portion 2 in the coating sheet member 3. A plate-like bottom reinforcing member 30 made of thick cardboard or the like having an outer shape smaller than that of the sole 11 and having approximately the size of a sole is released from the heat-adhesive contour shape portion 11 at the outer peripheral edge of the bottom reinforcing member 30. Packaged in a non-adhered state The simple slippers provided here are
The slipper main body 20 composed of the cover sheet member 3 in a flat wrapping form including the upper cover part 4 and the plate-shaped bottom reinforcing member 30 are separately provided, and the slipper main body 20 composed of the cover sheet member 3 in a flat wrapping form is separated. By wrapping the plate-shaped bottom reinforcing member 30 in a non-bonded state, the upper cover 4 that is difficult to bond and the plate-shaped bottom reinforcing member 30 are not bonded. In the embodiment shown in FIGS. 8 and 9, the foot opening 6 is formed in the front side cover sheet 1, and the slipper longitudinal direction is set to the heel side from the formation position of the foot opening 6. And a front side cover sheet portion 1 between the foot opening 6 and the second opening 7 as shown in the figure.
The bottom reinforcing sheet member 30 is wrapped between the surface-side covering sheet portion 1 and the bottom-side covering sheet portion 2 in the covering sheet member 3 so as to be located below 0. When the second opening 7 is formed in addition to the foot opening 6, the bottom reinforcing member 20 is manually formed in the cover sheet member 3 later.
Is easy to insert.

The flat type simple slipper shown in FIGS. 11 to 13 is made up of a sheet member made of a heat-weldable thermoplastic material such as a thermoplastic non-woven fabric. 2, a cover sheet member 3 formed in a flat packaging form, and the front cover sheet portion 1 of the cover sheet member 3, and the front cover sheet portion 1 The slipper main body 20 is formed by the foot insertion opening 6 which is divided into the part 5 and the outer peripheral edge of the covering sheet member 3 in a flat state as both side edges 4a, 4a of the instep covering part 4 of the slipper. Folded contour portions 10, 10 formed by folding a sheet to be functioned, and a heat-bonded contour formed by heat-bonding the outer peripheral edge portion excluding the bent contour portions so as to conform to the slipper contour shape. And the rear end portions of the bent profile portions 10 functioning as both side edges 4a of the instep covering portion 4. , And further, between the surface-side covering sheet portion 1 and the bottom-side covering sheet portion 2 in the covering sheet member 3 of the slipper main body 20.
A slightly thicker sheet-like bottom reinforcing member 30 made of a heat-sealable thermoplastic material such as a thermoplastic nonwoven fabric formed to have a width L2 substantially equal to the width of the sole is placed on the side of the bottom reinforcing member. An outer peripheral edge in the width direction is disposed at a position where at least a predetermined starting play width L3, L3 for raising the both side edges 4a, 4a from the both side edges 4a, 4a of the upper cover 4 is provided. At the same time, the outer peripheral edges in the longitudinal direction located on the toe side and the heel side of the bottom reinforcing member 30 are sandwiched between the front side covering sheet portion 1 and the bottom side covering sheet portion 2 by the heat bonding contour shape portion 11. And is packaged in a bonded state that is thermally bonded. The bent contour portion 1
The bonding means for bonding the outer peripheral edges except for 0 and 10 along the slipper profile to form the heat bonding profile 11 is performed by bonding by heat sealing, preferably by ultrasonic bonding. The covering sheet member 3 in the form of a flat package having a front side covering sheet part 1 and a bottom side covering sheet part 2 having a slipper contour shape is shown in FIGS.
Similarly to the embodiment, a substantially rectangular sheet member made of a heat-sealable material such as a thermoplastic nonwoven fabric is placed in a flat state so that one of the two opposite ends of the sheet member is joined to each other. Side edges 4 of the upper cover 4 of the slipper
a flat cylindrical coating is formed by bending each of the bent pieces along the extension line L1 of the both side edges 4a, 4a functioning as a and 4a, and thermally bonding the joined portions of the bent pieces; Out of both bent portions of the flat tubular covering, bent contour shapes 10 and 10 within a range of functioning as both side edges 4a and 4a of the upper cover 4 and a contour of the slipper except for the bent contour shapes 10 are provided. Formed by forming a slipper profile with the heat-bonded profile 11 thermally bonded to the shape, and cutting to remove a sheet portion outside the heat-bonded profile 11 forming the slipper profile. Is done. The simple slipper provided here is formed by bending the outer peripheral edge of the covering sheet member 3 in a flat state by bending the sheet to function as both side edges 4a, 4a of the upper covering portion 4 of the slipper. The rear ends of the bent contour portions 10, 10 which are contoured portions 10, 10 and which have both end portions 6a, 6a of the opening 6 for foot insertion function as both side edges 4a, 4a of the upper cover portion 4. In particular, by forming it so as to be located near the part, it is strengthened so as not to peel off the boundary between the rear end side and the bottom part of both side edges of the upper part where the pressure concentration in the vertical direction due to walking is remarkable. It is a thing. The simple slipper provided here is suitable for continuous and high-speed machine production.

Next, a method of manufacturing the simple slipper shown in FIGS. 1 to 4 will be described with reference to FIGS. 14 (a), 14 (b) and 14 (c). A front side covering sheet portion forming area surrounded by a parallel extension of the both side edges 4a, 4a functioning as the both side edges 4a, 4a of the instep covering portion 4 of the slipper in a flat state at the center in the sheet longitudinal direction. 41, and a bottom-side covered sheet portion forming area 42, 42 having a predetermined width at which both ends are joined to each other on both sides of the front-side covered sheet portion forming area 41.
A long sheet member 40 made of a thermoplastic non-woven fabric or the like formed in a predetermined sheet width having a front side covering sheet portion forming area 41 of the sheet member 40. The foot opening 6 that divides the area 41 into the instep covering portion 4 and the heel tread portion 5 that constitutes a slipper unit along the longitudinal direction of the seat is formed with the both ends 6a, 6a of the foot inserting opening 6 as described above. Front side coated sheet part formation range 4
11 (a) for sequentially forming the slipper forming units at a predetermined interval so as to be located near the side edge position of the foot insertion unit, and forming the foot insertion opening as schematically shown in FIG. 11 (a). A plate-shaped bottom reinforcing member 30 such as a thick cardboard formed approximately in the size of the sole in the front side cover sheet portion forming area 41 of the sheet member 40 in which the foot opening 6 is sequentially formed in the process. A bottom reinforcing member overlapping step in which the bottom reinforcing member 30 is overlapped so as to correspond to a formation position of a foot insertion opening 6 which divides the sole into the instep cover portion 4 and the heel tread portion 5; The bottom reinforcing member 30 is sequentially packaged with the sheet member 40 in which the foot opening 6 is sequentially formed in the opening forming step and overlapped in the front side cover sheet forming area 41 in the bottom reinforcing member overlapping step. Sheet member 40 Opposite side edges 4a of the slipper upper cover part 4 in the flat state, the both side edge portions 4a, which is functioning as 4a,
A surface-side cover sheet portion 1 formed by bending both side ends in the longitudinal direction of the sheet member 40 along the parallel extended line L1 of 4a so that the both side ends are joined to each other to form a foot insertion opening. A folding step of forming the bottom side covering sheet portion 2 composed of the respective bent pieces, and a bonding portion of each bent piece folded in a state in which the bottom reinforcing member 30 is wrapped in the folding step is thermally bonded 8 to the surface. FIG. 11B shows a step of forming a flat tubular covering having a side covering sheet portion 1 and two bottom covering sheets, and the tubular covering after the bending step. Before and after or at the same time as the body forming process
The both ends 6a of the foot opening 6 formed in
A bent portion functioning as both side edges 4a, 4a of the upper cover 4 so that 6a is located near a rear end of the bent portion functioning as both side edges 4a, 4a of the upper cover 4. 11 (c) in which the front side covering sheet portion 1 and the bottom side covering sheet portion 2 except for the above are thermally bonded along a predetermined slipper contour shape separated from the outer peripheral edge of the bottom reinforcing member 30. A continuous and high-speed process is performed by the heat bonding contour shape forming step shown in the drawing and the cutting step for cutting the sheet member 40 outside the heat bonding contour shape portion 11 which has been heat bonded in the heat bonding contour shape forming step. Thus, a flattened simple slipper can be manufactured.

In the case where a simple slipper including only the slipper main body 20 in which the plate-shaped bottom reinforcing member 30 is not packaged is manufactured, it can be achieved by omitting the bottom reinforcing member overlapping step from the above-described steps.

15 (a) and 15 (b) in place of the bottom reinforcing member superimposing step in which the plate-like bottom reinforcing member 30 formed approximately in the size of the sole is superimposed on the sheet member 40. (C) As shown in the outline of the manufacturing process, a sheet-like long bottom reinforcing sheet member 31 made of a thermoplastic material and formed in a lateral width L2 substantially equal to the sole width is used. Sheet member 31 for the sheet member 4
0, the both side edges of the bottom reinforcing sheet member 31 are covered with the upper cover 4
The sheet is provided with predetermined rising play widths L3, L3 for rising the side edges 4a, 4a from parallel extension lines L1, L1 of the side edges functioning as both side edges 4a, 4a of the sheet. A bottom reinforcing sheet member overlapping step of overlapping the member 40 along the longitudinal direction of the member 40 is provided.
0 of the bottom reinforcing sheet member 31 sandwiched between the front-side covering sheet portion 1 and the bottom-side covering sheet portion 2 and positioned at the toe side and the heel side of the bottom reinforcing sheet member 31 with the sheet member 40. In the next cutting process together with the heat bonding contour shape part 1
It can be manufactured by cutting to remove parts outside of one. The bonding means in the step of forming the thermal bonding profile portion is preferably a bonding method using ultrasonic bonding. The description of the other manufacturing steps in FIG. 15 is the same as that in FIG. In this manufacturing method, a simple slipper that has been strengthened so as not to peel off the boundary between the rear end side and the bottom part of both sides of the upper part of the slipper where the vertical pressure concentration due to walking is remarkable is more continuous and high speed. Can be mechanically manufactured.

[0022]

According to the flat type simple slipper of the present invention, the slipper main body composed of a cover sheet member in a flat package including the upper cover portion and a plate-like bottom reinforcing member are separated from each other, and By wrapping the plate-shaped bottom reinforcing member in a non-adhered state in the slipper main body composed of the covering sheet member, the upper cover member and the bottom plate member, which are made of different materials and are difficult to adhere, are formed without bonding, The material of the plate-shaped bottom reinforcing member that functions as a bottom plate member by forming a simple slipper without bonding the upper cover member, which is considered to be difficult to firmly bond, and the plate-shaped bottom reinforcing member that functions as the bottom plate member It is easy to select the thickness and thickness, and for example, a bottom plate member having an uneven portion formed on the surface can be employed. Further, in the flat type simple slipper according to the present invention, only a plate-shaped bottom reinforcing member functioning as a bottom plate member for the slipper main body can be replaced. In addition, the flat type simple slipper according to the present invention inserts only a slipper main body made of a covering sheet member that does not wrap a plate-shaped bottom reinforcing member functioning as a bottom plate member into a normal vinyl or felt slipper. It can also be used as a slipper insole for use.

In the flat type simple slipper according to the present invention, the outer peripheral edge of the covering sheet member is bent in a flat state by bending a sheet functioning as both side edges of the upper covering portion of the slipper. A shape portion, and formed so that both end portions of the foot insertion opening portion are located near a rear end portion of the bent contour shape portion functioning as both side edges of the upper cover portion, and a vertical direction by walking. The joint between the opening side edge of the instep covering part and the bottom part pressed by the foot, where the force of separating the part covering the instep and the bottom part pressed by the foot is strongly applied By using a sheet member that does not have such a structure, the portions functioning as both side edges of the upper cover portion of the slipper are particularly strengthened so as not to be peeled off even when pressure is concentrated in the vertical direction due to walking. In particular, it is reinforced so that the boundary between the opening side edge of the upper part where the vertical pressure concentration due to walking is remarkable and the bottom side pressed by the foot is not peeled off.

Further, according to the method of manufacturing a flat type simple slipper according to the present invention, both sides of the upper cover, particularly by walking,
A new simple slipper that hardly peels off the boundary between the opening side edge of the instep cover and the bottom pressed by the foot, where the force to separate the part covering the instep and the bottom pressed by the foot is strongly applied. It can be manufactured continuously and at high speed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a flat type simple slipper of the present invention.

FIG. 2 is a bottom view of the flat type simple slipper of FIG. 1;

FIG. 3 is a longitudinal sectional view taken along the line AA of FIG. 1;

FIG. 4 is a longitudinal sectional view taken along the line BB of FIG. 1;

FIG. 5 is a plan view showing another embodiment of the flat type simple slipper of the present invention.

FIG. 6 is a bottom view of the flat type simple slipper of FIG. 5;

FIG. 7 is a longitudinal sectional view taken along line CC of FIG. 5;

FIG. 8 is a plan view showing another embodiment of the flat type simple slipper of the present invention.

FIG. 9 is a longitudinal sectional view taken along line DD of FIG. 8;

FIG. 10 is a longitudinal sectional view taken along the line EE of FIG. 8;

FIG. 11 is a plan view showing another embodiment of the flat type simple slipper of the present invention.

FIG. 12 is a bottom view of the flat type simple slipper of FIG. 11;

13 is a longitudinal sectional view taken along the line FF of FIG. 11;

FIG. 14 is a view showing a manufacturing process of the flat type simple slipper shown in FIGS. 1 to 5;

FIG. 15 is a view showing a manufacturing process of the flat type simple slipper shown in FIGS. 11 to 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front side covering sheet part 2 Bottom side covering sheet part 3 Covering sheet member 4 Instep covering part 4a, 4a Both side edges of instep covering part 5 Heel stepped part 6 Foot opening 6a, 6a Foot opening 6a, 6a Both end portions 10 Folding contour shape portion 11 Thermal bonding contour shape portion 20 Slipper main body 30 Bottom reinforcing member 31 Bottom reinforcing sheet member 40 Sheet member 41 Front side covering sheet part forming range 42 Bottom side covering sheet part forming range

Claims (10)

[Claims] 1. A covering sheet member (3) formed in a flat packaging form having a surface-side covering sheet portion (1) and a bottom-side covering sheet portion (2) having a slipper contour shape, and the covering sheet member (3). 3) The foot-side opening portion (1) formed in the front-side covering sheet portion (1) and dividing the front-side covering sheet portion (1) into an upper cover portion (4) and a heel tread portion (5). A flat type simple slipper characterized in that the slipper main body (20) is formed according to 6). 2. A plate-like bottom reinforcing member which is formed approximately in the size of a sole between the front side covering sheet portion (1) and the bottom side covering sheet portion (2) in the covering sheet member (3). (3
The flat type simple slipper according to claim 1, wherein 0) is packaged. 3. A front side covering sheet portion (1) and a bottom side covering sheet portion (2) having a slipper contour shape by a sheet member.
And a cover sheet member (3) formed in a flat wrapping form and having the front side cover sheet portion (1) of the cover sheet member (3). Slipper main body (20) by foot insertion opening (6) divided into covering part (4) and heel stepped part (5)
The outer peripheral edge of the covering sheet member (3) is formed by bending a sheet that functions as both side edges (4a, 4a) of the instep covering portion (4) of the slipper in a flat state. A bent contour shape portion (10, 10) and an adhesive contour shape portion (11) formed by bonding an outer peripheral edge excluding the bent contour shape portion so as to conform to the slipper contour shape are formed. Both ends (6a, 6a) of the opening (6)
a) the bent profile portions (10, 10) functioning as both side edges (4a, 4a) of the upper cover portion (4);
A flat type simple slipper formed so as to be located near a flat surface. 4. A front side covering sheet part (1) and a bottom side covering sheet part (2) having a slipper contour shape by a sheet member.
And a cover sheet member (3) formed in a flat wrapping form and having the front side cover sheet portion (1) of the cover sheet member (3). Slipper main body (20) by foot insertion opening (6) divided into covering part (4) and heel stepped part (5)
The outer peripheral edge of the covering sheet member (3) is formed by bending a sheet that functions as a toe-side front edge (4b) and a heel-side rear edge (5a) of the slipper in a flat state. The bent contour shape part (10, 10) and an adhesive contour shape part (11) formed by adhering the outer peripheral edge part excluding the bent contour shape part along the slipper contour shape; Both ends (6a, 6) of the insertion opening (6)
A flat simple slipper characterized in that a) is formed so as to be located near the heat-welded contour shape portion (11). 5. A front side covering sheet portion (1) and a bottom side covering sheet portion (2) having a slipper contour shape by a sheet member.
And a cover sheet member (3) formed in a flat wrapping form and having the front side cover sheet portion (1) of the cover sheet member (3). Slipper main body (20) by foot insertion opening (6) divided into covering part (4) and heel stepped part (5)
The covering sheet member (3) is formed by an adhesive contour shape part (11) formed by adhering an outer peripheral edge of the covering sheet member (3) in a flat state so as to conform to a slipper contour shape. A flat type simple slipper characterized in that both end portions (6a, 6a) of (6) are formed so as to be located near the heat-welded contour shape portion (11). 6. The sole of the covering sheet member (3) having a smaller outer shape than the adhesive contour portion (11) between the surface-side covering sheet portion (1) and the bottom-side covering sheet portion (2). A bottom reinforcing member (30) in the form of a plate having a size of (1) is attached to the outer peripheral edge of the bottom reinforcing member by the bonding contour shape portion (1).
6. The flat type simple slipper according to claim 3, wherein the flat type simple slipper is packaged in a non-adhered state released from 1). 7. A covering sheet member (3) formed in a flat packaging form having a surface-side covering sheet portion (1) and a bottom-side covering sheet portion (2) having a slipper contour shape by a sheet member made of a thermoplastic material. And this covering sheet member (3)
Formed on the front side covering sheet portion (1), and the front side covering sheet portion (1) is combined with the upper cover portion (4) and the heel tread portion (5).
The slipper main body (20) is formed by the foot insertion opening (6) which is divided into two parts, and the outer peripheral edge of the covering sheet member (3) is flattened on both sides of the instep covering part (4) of the slipper. A folded contour shape portion (10, 10) formed by folding a sheet functioning as an edge portion (4a, 4a).
10) and a heat-adhesive contour portion (11) formed by heat-bonding the outer peripheral edge portion excluding the bent contour portion along the slipper contour shape, and the foot opening (6). So that both end portions (6a, 6a) are located near the rear ends of the bent profile portions (10, 10) functioning as both side edges (4a, 4a) of the upper cover (4). Further, between the surface-side covering sheet portion (1) and the bottom-side covering sheet portion (2) in the covering sheet member (3) of the slipper main body (20), the width is substantially the same as the sole width. A plate-shaped bottom reinforcing member (30) made of a thermoplastic material formed in a lateral width,
A predetermined play for raising the outer peripheral edge in the width direction of the bottom reinforcing member from at least the both side edges (4a, 4a) of the upper cover portion (4). At the position where the width (L3, L3) is given, the outer peripheral edges in the longitudinal direction located on the toe side and the heel side of the bottom reinforcing member (30) are attached to the heat bonding contour shape section (11).
A flat type simple slipper characterized in that it is packaged in a heat-bonded state by being sandwiched between the front side cover sheet portion (1) and the bottom side cover sheet portion (2). 8. A parallel extension of the side edges (4a, 4a) functioning as both side edges (4a, 4a) of the upper part (4) of the slipper in a flat state at the center in the longitudinal direction of the seat. A surface-side cover sheet portion forming area (41) surrounded by a circle, and a bottom-side cover sheet portion provided with a predetermined width at which both ends are joined to both sides of the surface-side cover sheet portion formation area (41). A long sheet member (40) made of a thermoplastic material and formed in a predetermined sheet width having a formation range (42, 42), and the front surface side covering sheet portion forming range of the sheet member (40) ( 41) A foot insertion opening which divides the front side cover sheet forming area (41) into an instep cover (4) and a heel tread (5) which constitute a slipper unit along the longitudinal direction of the sheet. (6) to the both ends (6a, 6a) of the foot opening (6). forming a foot opening for sequentially forming a) at predetermined intervals for each slipper forming unit so as to be positioned near a side edge position of the front side cover sheet forming area (41); The sheet member (40), in which the foot opening (6) is sequentially formed in the step for forming a foot opening, functions as both side edges (4a, 4a) of the upper cover portion (4) of the slipper in a flat state. The longitudinal ends of the sheet member (40) are bent along the parallel extending lines of the both side edges (4a, 4a) so that the both ends are joined to each other, and the foot opening (6) is formed. ) Formed on the surface-side covering sheet (1)
And a bottom-side covering sheet portion (2) composed of each bent piece; and a front-side covering sheet portion (1) formed by heat-bonding a joint of each folded piece bent in the folding step.
A tubular covering forming step of forming a flat tubular covering having a bottom and a bottom covering sheet portion (2); and, before or after or simultaneously with the tubular covering forming step after the bending step, after the bending step. Both end portions (6a, 6a) of the foot insertion opening portion (6) formed in (1) are the instep covering portion (4).
The bent portions functioning as the both side edges (4a, 4a) of the upper cover portion (4) so as to be located near the rear ends of the bent portions functioning as the both side edges (4a, 4a) A heat bonding contour shape forming step of thermally bonding the front side covering sheet portion (1) and the bottom side covering sheet portion (2) to be along a predetermined slipper contour shape, and a heat bonding contour shape forming step. The heat-bonded contour shape portion (1)
1) A method for manufacturing a flat type simple slipper, comprising: a cutting step of cutting to remove a sheet member (40) located outside. 9. A parallel extension of the side edges (4a, 4a) functioning as side edges (4a, 4a) of the upper part (4) of the slipper in a flat state at the center in the longitudinal direction of the seat. A surface-side cover sheet portion forming area (41) surrounded by a circle, and a bottom-side cover sheet portion provided with a predetermined width at which both ends are joined to both sides of the surface-side cover sheet portion formation area (41). A long sheet member (40) made of a thermoplastic material and formed in a predetermined sheet width having a formation range (42, 42), and the front surface side covering sheet portion forming range of the sheet member (40) ( 41) A foot insertion opening which divides the front side cover sheet forming area (41) into an instep cover (4) and a heel tread (5) which constitute a slipper unit along the longitudinal direction of the sheet. (6) to the both ends (6a, 6a) of the foot opening (6). forming a foot opening for sequentially forming a) at predetermined intervals for each slipper forming unit so as to be positioned near a side edge position of the front side cover sheet forming area (41); The sheet member (40), in which the foot opening (6) is sequentially formed in the step of forming the foot opening, is formed into a plate-like shape approximately in the size of the sole within the area (41) for forming the front side covering sheet portion. Are overlapped so that the bottom reinforcing member corresponds to the formation position of the foot insertion opening (6) which divides the bottom reinforcing member into the upper cover portion (4) and the heel tread portion (5). An opening for foot insertion (6) is sequentially formed in the bottom reinforcing member overlapping step and the foot opening opening forming step, and the front side covering sheet portion forming area (41) is formed in the bottom reinforcing member overlapping step. Bottom reinforcing member (3) ) Are parallelly extended as the side edges (4a, 4a) of the upper part (4) of the slipper in a flat state with the sheet member (40) being wrapped with the sheet member (40). A front side covering sheet part (1) in which both longitudinal ends of the sheet member (40) are bent along the line so that the two lateral ends are joined to each other to form a foot opening (6). And a bottom-side cover sheet portion (2) composed of each bent piece, and a bonding portion of each bent piece bent in a state where the bottom reinforcing member (30) is wrapped in the bending step is thermally bonded. A step of forming a flat tubular covering having a front-side covering sheet portion (1) and a bottom-side covering sheet portion (2), and the tubular covering after the bending step. Before or after the forming process The both end portions (6a, 6a) of the foot opening (6) formed in the front side cover sheet portion (1) function as both side edges (4a, 4a) of the upper cover portion (4). The front side covering sheet portion (1) and the bottom surface except for the bent portion which is located near the rear end of the bent portion and functions as both side edges (4a, 4a) of the upper cover (4). A step of forming a heat-bonding profile portion for thermally bonding the side covering sheet portion (2) to a predetermined slipper profile shape released from the outer peripheral edge of the bottom reinforcing member (30); A cutting step of cutting to remove the sheet member (40) outside the heat-bonded contoured section (11) that has been heat-bonded in the section forming step. 10. A parallel extension line of both side edges (4a, 4a) functioning as both side edges (4a, 4a) of the instep covering portion (4) of the slipper in a flat state at the center in the longitudinal direction of the sheet. A surface-side covering sheet portion forming range (41) surrounded by
On both sides of the front side cover sheet forming area (41), the sheet is formed to have a predetermined sheet width having a bottom side cover sheet part forming area (42, 42) given a predetermined width at which each end is joined to each other. A long sheet member (40) made of a thermoplastic material, wherein the front side covering sheet portion forming range (41) is added to the front side covering sheet portion forming range (41) of the sheet member (40). An opening (6) for inserting a foot into which an instep cover (4) and a heel tread (5) constitute a slipper unit along the longitudinal direction of the seat is provided at both ends of the opening (6). Forming an opening for foot insertion in which (6a, 6a) are sequentially formed at predetermined intervals for each slipper forming unit so as to be located near the side edge position of the front side cover sheet forming range (41); In this step for forming a foot opening, a foot opening ( 6) A plate-like long bottom made of a thermoplastic material and formed to have a width substantially equal to the width of the sole in the front side cover sheet portion forming range (41) of the sheet member (40) formed sequentially. Replace the reinforcing sheet member (31) with the bottom reinforcing sheet member (3).
The two side edges (4a, 4a) of the slipper upper cover (4) function as the two side edges (4a, 4a) of the slipper instep (1). 4a) a bottom reinforcing sheet member superimposing step in which predetermined play play widths (L3, L3) for raising the sheet member (40) are superimposed along the longitudinal direction of the sheet member (40); Bottom reinforcement in which foot insertion openings (6) are sequentially formed in the opening formation step, and are superimposed at predetermined positions in the front side cover sheet formation area (41) in the bottom reinforcement sheet member overlapping step. Sheet member (31)
(4) to wrap the sheet material in the sheet member (40).
0) in a flat state, the both side edges (4a, 4a) functioning as both side edges (4a, 4a) of the upper cover portion (4) of the slipper.
The front side of the sheet member (40), which is formed by bending both side ends in the longitudinal direction along the parallel extension line of (a) such that the both side ends are joined to each other to form the foot opening (6). A folding step of forming a covering sheet part (1) and a bottom-side covering sheet part (2) composed of bent pieces; and the folding step, the bottom reinforcing sheet member (31).
Is formed into a flat cylindrical covering having a front-side covering sheet portion (1) and a bottom-side covering sheet portion (2) by thermally bonding the joints of the respective bent pieces folded in a packaged state. Both ends (6a) of the foot insertion opening (6) formed in the front side covering sheet portion (1) before and after or simultaneously with the cover forming step and the tubular cover forming step after the bending step. , 6a) is located near the rear end of the bent portion serving as both side edges (4a, 4a) of the upper cover (4).
The front-side covering sheet portion (1) and the bottom-side covering sheet portion (2) excluding the bent portions functioning as both side edges (4a, 4a) of the bottom portion between the two sheet portions (1, 2). A step of forming a heat-bonding contour portion for thermally bonding the reinforcing sheet member (31) so as to follow a predetermined slipper contour shape with both ends in the longitudinal direction being sandwiched; The sheet member (40) and the bottom reinforcing sheet member (3) outside the bonded heat-adhesive contour (11) are bonded.
1) A method of manufacturing a flat type simple slipper, comprising: a cutting step of cutting to remove both ends in the longitudinal direction.