JP3081183U - Simple slippers - Google Patents

Abstract

(57) [Summary] [Problem] Good comfort with excellent cushioning properties, comprising a slipper bottom and a band made of a sheet-like foam mainly composed of a paper powder component or a vegetable powder component of government-made postcards. To provide a simple slipper which is relatively durable, can be incinerated as general garbage after use, and is excellent in a natural environment. SOLUTION: A slipper bottom portion 1 formed from a sheet-like foam Ms mainly composed of a paper powder component or a plant-based powder component of an official postcard or general waste paper, and the sheet-like foam A band portion 2 molded from Ms and attached to the slipper bottom portion 1.
The band 2 is attached to the entire back surface of the slipper bottom 1.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention has a slipper bottom composed of a sheet-like foam mainly composed of a paper powder component or a vegetable powder component of a postcard made of government-made postcards and a band portion. The present invention also relates to a simple slipper which is relatively durable, can be incinerated as general garbage after use, and is excellent in a natural environment.

[0002]

[Prior art]

 At present, at hotels, inns and the like, slippers are provided to guests. Most of the slippers are facility equipment. Therefore, many customers use slippers used by others. That is, even if a guest leaves, the slippers that have been used so far will be used by the next guest. Also, in places where many slippers are scattered, such as in a dressing room such as a bathroom, be careful not to use the slippers for other customers, and place the slippers in an inconspicuous place. However, when many slippers are scattered, it is common to end up not knowing which slipper you have worn. For this reason, accommodation facilities often hesitate to use slippers.

[0003]

[Problems to be solved by the invention]

 Therefore, some accommodation facilities provide disposable slippers to each customer. Especially in recent years, hotels and inns generally provide towels, toothbrushes, cosmetics, etc., but they also try to provide slippers with them. Slippers, however, are less commonplace and will degrade the quality of their accommodation, and if the quality is satisfactory to some extent, it will be a relatively expensive product. And there is a great contradiction that these costs can appear in accommodation expenses. In addition, this type of slipper may be of a disposable type. For this reason, it is necessary to ensure that no harmful substances are generated when incinerated when disposing of it, and that it is environmentally friendly. The purpose of the present invention is to provide a simple slipper that is disposable, maintains a constant level of quality, contributes to environmental protection, and minimizes costs.

[0004]

[Means for Solving the Problems]

 Therefore, the inventor of the present invention has conducted intensive studies to solve the above-mentioned problems, and as a result, the present invention is pressed and formed into a sheet having a paper powder component or a vegetable powder component of an official postcard or general waste paper as a main component. And a band portion formed from the sheet-like foam and attached to the slipper bottom. The band portion is attached to the entire back surface of the slipper bottom. The simple slipper has excellent cushioning and good comfort, and can be incinerated as general garbage after use, etc., resulting in an excellent natural environment. Or, the disadvantage has been eliminated.

[0005]

[Embodiment of the invention]

 The simple slipper of the present invention is formed by using the sheet-like foam Ms as a raw material. The sheet-like foam Ms is composed of about 10 to 40% by weight of a paper powder component or a vegetable powder component of an official postcard or general waste paper, and about 25 to 40% by weight of a starch (such as corn starch) component as an auxiliary agent. And about 35 to 60% by weight of a polyolefin resin. In this specification, the official postcard waste paper refers to waste paper such as cutting waste and stained paper generated in the production process of the official postcard, and stained paper generated at the home where the user is used. The vegetable powder component is a powder of bran, tea leaves, corn meal, food residues such as okara, and the like. About a 10% increase or decrease of each component is included in the present invention.

[0006] The postcard waste paper is first coarsely crushed (crushed) by a mixer cutter type pulverizer, and then finely pulverized by a mill (mortar) type pulverizer and collected as powder by a dust collector. The paper powder component as such paper powder is kneaded with the starch component using a kneader, heated and melted together with the polyolefin resin, and extruded using water as a foaming medium using a twin-screw extruder. Thus, a plate-like foam is manufactured. It is preferable that the official postcard waste paper is pulverized into a powder (about 150 to 80 μm particle size) that has passed through a 100 to 200 mesh sieve.

In the present invention, the proportion of the raw material composition of the sheet-like foam Ms is such that the proportion of the polyolefin-based resin in the whole is about 60% by weight, whereby a foam can be obtained. From the viewpoint of effective use of postcards made of government-made postcards, it is desirable that the proportion of the polyolefin resin is not more than 60% by weight, and the composition ratio of postcards made of government-made postcards is not less than 10% by weight, and as much as possible. In addition, even if the ratio of the polyolefin resin (preferably, a polypropylene resin or a polyethylene resin) is 60% by weight or more, a foam substantially similar to the above can be obtained. The sheet-like foam Ms is a sheet-like foam formed by pressing the above-mentioned plate-like foam by a roll forming machine B described later.

Next, a method for producing a sheet-like foam Ms mainly composed of postcards made of official postcards will be described. First, waste paper of government-made postcards is roughly crushed with a crusher of a mixer cutter system, and crushed into fragments of about 15 to 20 mm. Then, it is finely pulverized by a mill type pulverizer to obtain a paper powder component of an official postcard made of about 200 mesh. Then, the paper powder component of the finely ground official postcard waste paper and a starch component, which is a suitable industrial starch, are mixed. Then, a polyolefin resin (granules) and water are mixed with the paper powder component and the starch component, followed by heating and kneading.

By extruding such components from an extruder A as a high-temperature heating cylinder, they pass through an extrusion mold 5 and an extrusion mold 7 provided at the outlet end of the extruder A. A plate-like foam can be manufactured. Further, a roll forming machine B is arranged adjacent to the extruder A. The roll forming machine B is composed of a lower roll 8 and an upper roll 9. The plate-like foam formed by the extruder A is pressed in the thickness direction by the roll forming machine B to form a sheet-like foam. Ms is molded. FIG. 7A is a perspective view showing the extruder A and the roll forming machine B. FIG. 7B shows a state in which the sheet-like foam Ms is formed by pressing the plate-like foam M formed by the extruder A by the roll forming machine B.

The extrusion die 5 has a rectangular cross section and a flat rectangular shape having an appropriate length. A plurality of holes 6, 6, ... penetrate in the length direction inside the cross section. The hole diameter is about 2 mm to about 3 mm. The plurality of holes 6 formed into a string shape are bonded to each other by passing through an extrusion mold frame 7 in which a void having a rectangular cross section is formed to form a plate-like foam M [FIG. (B)).

The pushing direction is configured to pass from the right to the left as shown by an arrow in FIG. 7B. Simple slippers are manufactured from the sheet-like foam Ms. The simple slipper is specifically composed of a slipper bottom 1 and a band 2 (see FIGS. 1 and 2). The slipper bottom 1 is formed by stamping out the sheet-like foam Ms into a foot shape via a punching device C, and a cut line k is cut in the sheet-like foam Ms [FIG. (A)]. Similarly, the band portion 2 is also formed by punching and molding a sheet-like foam Ms through a punching device C, and a cut line k is cut in the sheet-like foam Ms (see FIG. 8B). .

The punching device C includes a punching die 10 and a pedestal 11. The punching die 10 includes a punching blade 10b and a base 10a, and the punching blade 10b is mounted on the base 10a. . The punching blade 10b is a loop-shaped band-shaped blade formed in a foot shape (see FIGS. 9A and 9B). A loop-shaped groove 11b is formed in the bed portion 11a of the cradle 11, and the loop-shaped groove 11b has a foot shape corresponding to the punching blade 10b (see FIGS. 9C and 9D). ].

Then, the sheet-like foam Ms is placed on the receiving table 11 and the punching die 10 is lowered from above, whereby the punching blade 10b reaches the loop-like groove 11b, and the sheet-like foam Ms Then, the slipper bottom 1 is stamped and formed (see FIG. 9E). Similarly, the band portion 2 is formed from the sheet-like foam Ms by using the punching blade 10b formed in the shape of the band portion 2. In some cases, the receiving base 11 is not formed with the loop-shaped groove 11b. In this case, the receiving base 11 has a flat surface.

The slipper bottom 1 has a thickness of about 2 mm to 6 mm, but may have a thickness of 2 mm or less, which is limited to this dimension, or 6 mm or more. Normally, it is preferable that the thickness of the sheet-like foam Ms be the thickness of the slipper bottom 1 as it is. Next, the band portion 2 is also formed from the sheet-like foam Ms, and is adhered from both side surfaces in the width direction of the slipper bottom portion 1 to the back surface side. The band 2 also has the same thickness as the slipper bottom 1. Specifically, both end portions in the width direction of the band portion 2 are surface-bonded on the entire back surface side (including substantially the entirety) of the slipper bottom portion 1. In this manner, the band portion 2 and the slipper bottom portion 1 and the slipper bottom portion 1 are attached to the entire back surface side, so that the band portion 2 is firmly attached to the slipper bottom portion 1 and is durable. can do.

Next, in the first embodiment of the form in which the band portion 2 and the slipper bottom 1 in the simplified slipper of the present invention are adhered to each other, at the place where the band 2 and the slipper bottom 1 are adhered, Both ends in the width direction of the band portion 2 are formed in a substantially S shape, and a joint at both ends of the band portion 2 is formed in a substantially S shape (see FIGS. 1A and 1B). This is one in which the shape of the attachment regions 2a, 2a to be attached to the back surface of the slipper bottom 1 is formed in a stepped shape at both sides in the width direction of the band portion 2 (see FIG. 2B). This is affixed to the back surface of the slipper bottom 1 so as to form a substantially S-shape at both ends in the width direction of the band portion 2. Further, as a modified example of the first embodiment, the bonding regions 2a, 2a at both ends in the width direction of the band portion 2 are formed so as to have an uneven shape, and the seam at both ends of the band portion 2 becomes an uneven seam. (See FIG. 3A). Further, as another modified example of the first embodiment, the attachment regions 2a, 2a at both ends in the width direction of the band portion 2 are formed in an inclined shape, and the joints at both ends of the band portion 2 are inclined seams. In some cases (see FIG. 3B). Further, as another modified example, the attachment regions 2a, 2a at both ends in the width direction of the band portion 2 may be formed in a vertical shape, and the seam at both ends of the band portion 2 may be a vertical seam [ See FIG. 3 (C)].

Next, as a second embodiment of the present invention, the bonding portion at one end in the width direction of the band portion 2 and the bonding surface of the slipper bottom portion 1 are set to the entire surface, and the other end of the band portion 2 is Is attached so as to overlap the one end side (see FIG. 6A). That is, the bonding areas 2a, 2a at the widthwise ends of the band portion 2 on the back surface side of the slipper bottom 1 are in an overlapping state (see FIG. 6B). By doing so, the bonding area between the band portion 2 and the slipper bottom portion 1 is increased, and the durability is further improved.

Next, as a third embodiment of the present invention, there is an embodiment in which a seal 3 is attached to a simple slipper (see FIG. 6A). In this embodiment, for example, when a slipper is provided to a guest at an inn or a hotel accommodating a large number of guests, a seal 3 on which the name of the guest, room number (name), etc. can be described in advance is provided. It can be attached to the band portion 2. Specifically, the seal 3 is made of cloth, paper, or the like, and the back surface thereof is coated with an adhesive tape or the like or an adhesive. Alternatively, the seal 3 may be peeled off from the base paper, and the seal 3 may be attached to the band portion 2 (see FIG. 6B).

[0018]

【Example】

 A specific manufacturing process will be described with reference to a flowchart (manufacturing process diagram) in FIG. First, the used postcards are roughly pulverized into pieces of about 15 to 20 mm by a mixer cutter type pulverizer (see S1). The coarsely pulverized paper fragments are finely pulverized by a mill-type pulverizer (see S2). This fine powder is sucked from the top of the fine pulverizer with a 2.2 kw suction pump while adjusting the suction opening scale, and is then passed through a 100-200 mesh sieve to a paper powder (about 150-80 μm). (Particle size). The process up to this point is to convert used postcards into paper powder components.

The paper powder component and the starch component, which is an industrially modified starch, are added and mixed at a weight ratio of 4: 6 (see S3). Then, water is appropriately supplied to 24% by weight of such a paper powder component, 36% by weight of a starch component, and 40% by weight of a polypropylene-based resin, and well kneaded with a kneader (see S4). The paper powder component, the starch component, and the polyolefin resin are charged into an extruder (see S5).

The mold 5 for extruding the plate-like foam has a cross section of about 105 mm, a height of 22 mm, and a total of 23 circular holes 6 having a hole diameter of about 2.5 mm in a staggered arrangement within a height of 22 mm. Immediately after the mold has a thickness of about 10 mm and has come out of the large number of holes 6, the mold has a shape of a circular string, and the plurality of pieces are fitted together so as to be in close contact with each other. After passing through, it is slightly shrunk and a strip-like plate-like foam having a width of about 100 mm and a height of about 20 mm is extruded (see S6).

[0021] Immediately after the extrusion mold 5 and the extrusion mold frame 7 are removed, the sheet is cut by a cutter at a desired length, for example, 45 cm, to produce a plate-like foam. Further, the plate-like foam is formed into a sheet-like foam Ms by the roll forming machine B (see S8). Next, the slipper bottom 1 and the band 2 are stamped and formed from the sheet-like foam Ms (see S9). The band 2 is mounted on the slipper bottom 1 (see S10). The band portion 2 is formed into a flat band in a state of being punched from the sheet-like foam Ms, and the flat band portion 2 is in contact with the back side of the slipper bottom 1. The back surface of the slipper bottom portion 1 and the band portion 2 that are in contact with each other are adhered with an adhesive. Alternatively, the back surface of the slipper bottom 1 and the band 2 may be adhered with double-sided tape.

The production of a plate-like foam from a paper powder component or a vegetable powder component of general waste paper is the same as the production method using government-made postcard waste paper as a main component, and a description thereof will be omitted. In addition, the extrusion die 5 has an example in which a total of 17 circular holes 6 having a width of about 80 mm, a height of 22 mm, and a hole diameter of about 2.5 mm are opened in a staggered arrangement, When molded in this manner, a strip-shaped foam having a width of about 70 mm × a height of about 20 mm and an appropriate length (for example, about 30 cm) is formed. Further, the cross section is about 105 mm, the height is 44 mm, and the hole diameter is about 2. In some embodiments, a total of 28 5 mm circular holes 6 are opened in a staggered arrangement. When molded in this manner, a strip-shaped foam having a width of about 100 mm × a height of about 40 mm and an appropriate length (for example, about 30 cm 2) is formed.

As described above, even if the thickness (height) is about 20 mm or 40 mm, the width is 100 mm. Therefore, in the case of a desired width, for example, 280 mm, two of 100 mm and 8 It is constructed by adhering one of 0 mm with an adhesive or the like. Further, by increasing the size of the extruder, it is possible to produce a plate-like foam having a thickness (height) of about 50 mm, a width of about 200 to 300 mm, and an appropriate length of about 50 cm to 1 m. In the examples, a polypropylene resin is used, but a polyethylene resin may be used in some cases.

[0024]

[Effect of the invention]

 The invention of claim 1 is a slipper bottom 1 formed from a sheet-like foam Ms which is mainly composed of a paper powder component or a vegetable powder component of an official postcard waste paper or a general waste paper and is formed into a sheet by pressing. A band portion 2 is formed from a sheet-like foam Ms and is attached to the slipper bottom portion 1. The band portion 2 is attached to the slipper bottom portion 1 by using a simple slipper as the entire back surface side. First, it has good comfort with excellent cushioning properties, can be incinerated as general garbage after use, and can be made excellent in the natural environment. Third, it has a simple structure. It has the effect of being able to have excellent durability even though it is a slipper.

In detail, the effect of attaching the band portion 2 to the slipper bottom portion 1 is as follows: when the band 2 and the slipper bottom portion 1 are attached to the slipper bottom portion 1, the entire back side of the slipper bottom portion 1 is in surface contact. Therefore, the joining force can be strengthened, and it can be made extremely durable. Further, the sheet-like foam Ms is formed by pressing from a plate-like foam, and has appropriate elasticity and resilience. Therefore, the slipper bottom 1 has a cushioning property. This is more flexible than a normal slipper, and the familiarity between the sole on the ground contact side and the surface of the slipper bottom 1 is extremely good in walking. Moreover, since the components of the plate-like foam are mainly composed of paper powder components or plant powder components of government-made postcards or general waste paper, the raw materials are inexpensive and can contribute to a recycling environment.

Next, in the invention of claim 2, 10 to 40% by weight of a paper powder component or a vegetable powder component of official postcard or general waste paper, and 25 to 40% by weight of a starch component as an auxiliary agent; A slipper bottom 1 made of a sheet-like foam Ms made of 35-60% by weight of a polyolefin resin and extruded into a sheet, and a slipper bottom 1 made of the sheet-like foam Ms. The band portion 2 to be attached is attached, and the attaching portion of the band portion 2 is a slipper bottom portion 1 and a band portion 2 which are excellent in heat retention by being a simple slipper which is the entire back side of the slipper bottom portion 1. You can expect foot temperature effect.

In the invention of claim 3, 10 to 40% by weight of a paper powder component or a vegetable powder component of a postcard or general waste paper made of government-made postcards, and 25 to 40% by weight of a starch component as an auxiliary agent; A slipper bottom 1 made of a sheet-like foam Ms extruded into a sheet and made of a polyolefin-based resin of about 60% by weight, and a band formed from the sheet-like foam Ms and attached to the slipper bottom 1 The band portion 2 is attached to the entire back surface of the slipper bottom 1 and the polyolefin resin is a simple slipper made of a polypropylene resin or a polyethylene resin. Since foam-like foam can be burnt and disposed together with general household waste, it is suitable for preventing pollution when incinerating simple slippers. It has a good effect in terms of global environmental protection.

The above-mentioned effect is described in detail. The polyolefin resin contained in the plate-like foam is a chain hydrocarbon polymer having no benzene ring. On the other hand, in the case of the combustion treatment, no harmful soot is produced, and after combustion, mainly carbon dioxide gas and water vapor, and the calorific value of combustion is smaller than that of expanded polystyrene or expanded polystyrene. Therefore, since the plate-like foam can be burnt and disposed together with general household waste, it has a favorable effect from the viewpoint of global environmental protection.

Next, the invention according to claim 4 is the invention according to claim 1, 2, or 3, wherein the band portion 2 is a simple slipper to which a writable seal can be attached. At inns and hotels accommodating a large number of guests, stickers are attached to the simple slippers provided to each guest, and the room number (name) or guest name is written on the sticker. In addition, the owners of the simple slippers in the inn can be confirmed, and each can be used as an exclusive slipper for each guest during the stay period.

[Brief description of the drawings]

1A is a perspective view of the simple slipper of the present invention, FIG. 1B is a rear view of the simple slipper, and FIG. 1C is a top perspective view of the simple slipper.

2A is a plan view of the simple slipper of the present invention, FIG. 2B is a perspective view of the opened state of the band portion, and FIG. 2C is a perspective view of the slipper bottom.

3A is a rear view of a modification of the first embodiment. FIG. 3B is a rear view of another modification of the first embodiment. FIG. 3C is a rear view of still another modification of the first embodiment. Figure

FIG. 4 (A) is a perspective view of the second embodiment of the simple slipper of the present invention as viewed from the back surface, and FIG.

FIG. 5 is a sectional view of the use state of the present invention.

FIG. 6A is a perspective view of a third embodiment of the simple slipper of the present invention, and FIG. 6B is a perspective view of a modification of the third embodiment.

FIG. 7A is a perspective view of an extruder partially cut away and a perspective view of a roll forming machine. FIG. 7B is a diagram illustrating a plate-like foam formed from the extruder formed into a sheet-like foam by a roll forming machine. State diagram

FIG. 8 (A) is a diagram showing a state in which a cutout is formed at the bottom of a slipper on a sheet-like foam, and FIG. 8 (B) is a diagram showing a state where a band-shaped cutout is formed on a sheet-like foam.

9 (A) is X perspective view of punch die (B) is X ₁ -X ₁ cross-sectional view along a line (A) (C) are cradle perspective view (D) is (C) ₂ - X ₂ cross-sectional view taken (E) is a state diagram for punching a slipper bottom of a plate-like foam

FIG. 10 is a process chart for manufacturing the simple slipper of the present invention.

[Explanation of symbols]

 Ms: Sheet-like foam 1 ... Slipper bottom 2 ... Band

Claims (4)

[Utility model registration claims] 1. A slipper bottom formed from a sheet-like foam formed by pressing a sheet-like foam mainly containing a paper powder component or a vegetable powder component of an official postcard or general waste paper, and the sheet-like foam. A simple slipper comprising a band formed and attached to the bottom of the slipper, and a sticking portion of the band is formed on the entire back side of the bottom of the slipper. 2. 10 to 40% by weight of a paper powder component or a vegetable powder component of official postcard or general waste paper, 25 to 40% by weight of a starch component as an auxiliary agent, and 35 to 60% by weight of a polyolefin resin. A slipper bottom formed from a sheet-like foam extruded into a sheet, and a band formed from the sheet-like foam and attached to the slipper bottom. Is an entire back side of the slipper bottom portion. 3. A paper powder component or a vegetable powder component of 10-40% by weight of postcard waste paper or general waste paper, a starch component of 25-40% by weight as an auxiliary, and a polyolefin resin of 35-60% by weight. A slipper bottom formed from a sheet-like foam extruded into a sheet, and a band formed from the sheet-like foam and attached to the slipper bottom. Is an entire back side of the slipper bottom, and the polyolefin resin is a polypropylene resin or a polyethylene resin. 4. A simple slipper according to claim 1, wherein a writable sticker can be attached to said band portion.