JP3044236U - slipper - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To prevent the generation of pattering noise when the bottom hits the floor surface while walking while keeping the rigidity of the bottom, and to make the bottom as hygienic as possible. SOLUTION: In a slipper composed of an instep part 2 and a bottom part 1 of a natural material or a synthetic resin agent, a bottom cloth 3 arranged on the contact surface side of the bottom part 1 of the slipper with a floor surface is formed by a needle punch method. It is a synthetic fiber non-woven fabric that is formed and has a synthetic resin agent impregnated layer 3 a on its back surface, and a buffer layer 4 is disposed inside the bottom cloth 3. By the shock absorbing action of the non-woven fabric,
It is possible to prevent the generation of impact noise, patter noise, etc. when the bottom portion 1 hits the floor surface, and the synthetic resin impregnated layer 3a improves wear resistance and facilitates processing. If necessary, the bottom cloth 3 is subjected to antistatic treatment, antibacterial treatment, antifouling treatment, etc. to prevent dust and the like from adhering to the bottom portion 1 and keep it sanitary and clean in appearance.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a slipper that prevents pattering noise when walking on a hard floor such as a flooring.

[0002]

[Prior art]

 The bottom of a normal slipper is made of a core material such as cardboard or synthetic resin, and has a firm and firm rigidity. Then, a smooth synthetic resin cloth is used on the side contacting with the floor. In addition, as a special slipper, there is an elastic part such as a rubber band placed on the heel of the bottom, and the heel is bent so that it does not hit the floor except when it touches the floor. There is (as an example, Jitsukaihei 6-21401). There are also slippers that use felt material on the floor side of the bottom of the slipper.

[0003]

[Problems to be solved by the device]

 With the normal slippers mentioned above, when walking on a hard floor such as a flooring, a so-called pattering noise is generated especially when the heel portion hits the floor surface due to the bottom portion having sufficient rigidity. . On the other hand, the slippers that have elastic members on the heels of the bottom and bend them toward the sole of the foot as described above do not generate patters because the bottom does not contact the floor surface except when the foot touches the ground. Not only the number of constituent members and the number of processing steps increase, but the rigidity of the bottom part is lost, resulting in poor comfort. Further, even a slipper using a felt material can prevent generated noise to some extent, but has a problem that it is slippery and expensive. Furthermore, even if there has been a recent demand for hygiene due to the enhancement of the concept of hygiene, the felt material is disadvantageous because dust and the like tend to adhere to it and the appearance is unclean. The present invention has been made in view of the above problems, and an object of the present invention is to provide a slipper that prevents the generation of pattering noise while walking while maintaining the rigidity of the bottom. It is also an additional purpose to provide slippers that are as hygienic as possible.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the slipper according to claim 1 is a slipper composed of an upper part and a bottom part of a natural material or a synthetic resin material, and the bottom cloth arranged on the side of the bottom part of the slipper that contacts the floor. Is a synthetic fiber non-woven fabric which is formed by the needle punching method and has an impregnated layer of a synthetic resin agent on the back surface. For this reason, the impact cushioning action of the non-woven fabric can prevent the generation of impact noise and patter when the bottom hits the floor surface, and the synthetic resin impregnated layer improves wear resistance and facilitates processing. You can The slipper according to claim 2 is the slipper according to claim 1, wherein a buffer layer having a thickness of 2 to 5 mm is provided inside the bottom cloth. Therefore, in addition to the above, it is possible to obtain a soft wearing comfort. Further, in the slipper according to claim 3, the slipper piece of the rubber material or the synthetic resin material is the bottom cloth as compared with the above-mentioned claim 1 or 2. If the anti-slip piece is made of a material having a softness equal to or more than the shock absorbing function of the bottom cloth, it is placed at the same position as the surface of the bottom cloth or in a protruding position. If the anti-slip piece is made of a material having a softness lower than the shock absorbing function of the bottom cloth, the anti-slip piece is arranged at a position retracted from the surface of the bottom cloth. Therefore, it is possible to further reliably prevent the bottom from slipping.

In order to achieve the above object, a slipper according to a fourth aspect is a slipper composed of an upper part and a bottom part of a natural material or a synthetic resin material, and the bottom part of the slipper is disposed on the contact surface side to the floor. Part of the bottom cloth is a synthetic fiber non-woven fabric that is formed by the needle punching method and has an impregnated layer of a synthetic resin agent on the back surface. The slipper according to a fifth aspect of the present invention is the slipper according to the fourth aspect, in which a buffer layer having a thickness of 2 to 5 mm is provided inside the bottom cloth. The slipper according to claim 6 is the slipper according to claim 4 or 5, wherein a non-slip piece of a rubber material or a synthetic resin material is disposed on a flat part of the bottom cloth, and the non-slip piece is the bottom piece. In the case of a material having a softness equal to or more than the shock absorbing function of the cloth, it is at the same position as the surface of the bottom cloth or in a protruding position in the cross-sectional direction, and the non-slip piece is softer than the shock absorbing function of the bottom cloth. In the case of a material having a thickness, it is arranged at a position retracted from the surface of the bottom cloth. Therefore, in addition to the above-mentioned claims 1 to 3, the amount of the non-woven fabric used can be saved and can be effectively limited to the portion that comes into contact with the floor surface, so that it is possible to effectively prevent the generation of patter noise.

In order to achieve the above object, the slipper according to claim 7 is the slipper according to claims 1 to 6, wherein the nonwoven fabric of the bottom cloth is subjected to antistatic treatment. Therefore, in addition to the above, it is possible to prevent dust and the like from adhering to the bottom cloth, and it is possible to perform hygiene. In order to achieve the above object, the slipper according to claim 8 is the slipper according to any one of claims 1 to 7, wherein the nonwoven fabric of the bottom cloth is treated with at least one of antifouling treatment and antibacterial treatment. Therefore, in addition to the above, the bottom part can be kept hygienic and clean in appearance.

[0007]

[Embodiment of the invention]

 An embodiment corresponding to each claim will be described below with reference to the drawings. As shown in FIG. 1, the slipper of the first embodiment corresponding to claim 2 is composed of a bottom portion 1 and an instep portion 2. Although there are a pair of left and right slippers, in the following description, there is no special difference between the left foot and the right foot, so only one of them will be described.

In FIG. 1, a bottom portion 1 includes a bottom cloth 3 arranged on the entire surface on the side contacting with the floor, a buffer layer 4 arranged inside the bottom cloth 3, and other parts such as an insole. It is composed of the component part 1a. The bottom cloth 3, which is a feature of the present invention, is formed of a non-woven fabric having a synthetic resin impregnated layer 3a on the back side, as shown in the enlarged portion in the circle in FIG. The bottom cloth 3 has a thickness of about 2 mm, of which the synthetic resin impregnated layer 3a has a thickness of about 1 mm. Note that the thickness is not limited to this, and a different thickness can be appropriately selected depending on the type of floor surface. This non-woven fabric is formed of synthetic fibers (for example, polypropylene, polyester, acrylic, etc.) in a felt shape or a velor tone by the needle punching method. The synthetic resin agent used for the synthetic resin-impregnated layer 3a is selected from various synthetic resin agents in consideration of compatibility with the synthetic fibers used and the like. The non-woven fabric produced by the needle punching method has a high density of fibers and a high bulkiness, so it has a shock absorbing function, and the surface is hard to slip and wear resistance is high depending on the selection of fibers. This is clear because the non-woven fabric, which is currently used in large quantities, is used as carpet, which is a kind of floor covering. In other words, as the material of the carpet, soundproofing, abrasion resistance, durability, walkability, stain resistance, and heat retention are key points, and due to the fact that it is widely used for carpets, this nonwoven fabric This is because it has been proved that these functions are fully equipped.

The needle punching method is a method in which a large number of needles (hooks) with hooks (hooks) are vertically pierced or pulled up in the web, and the fibers in the web are entangled with each other to bond them. It is also possible to manufacture a velor-like non-woven fabric by optimally designing the shape of the needle (Second Edition Textile Handbook, March 25, 1994, Maruzen Co., Ltd., p. 350). Here, the web is a sheet of fiber lumps in which the fiber directions are aligned to some extent (ibid., P. 348). Further, the synthetic resin impregnated layer 3a impregnated with the synthetic resin material on the back side not only improves the abrasion resistance of the non-woven fabric, but also does not loosen the fiber at the cut end when the cut is made, which facilitates the processing in slipper manufacturing. The bottom cloth 3 of a normal slipper is PVC (polyvinyl chloride) or the like. However, with sheet-like PVC, even if it has high durability, it does not have a shock absorbing function, and the bottom 1 hits the floor surface while walking. In that case, the function of preventing the generation of patter noise cannot be exerted.

The buffer layer 4 is formed of foam rubber having a thickness of 2 mm to 5 mm. The presence of the cushioning layer 4 not only strengthens the impact cushioning function of the bottom cloth 3, but also enables a soft wearing comfort. A thickness of 2 mm to 5 mm is an optimum thickness for use in slippers from the viewpoint of the weight of the material used and the comfort of cushioning. This foam rubber has a cushioning function by using a rubber material or a material obtained by mixing a rubber material and a synthetic resin agent as a cloth having a closed cell structure. The types of rubber used are natural rubber, diene-based synthetic rubber (chloroprene rubber, etc.), non-diene-based synthetic rubber (ethylene propylene rubber, etc.), nitrile rubber, etc. An example of the synthetic resin agent used is polyethylene (EVA, etc.).

Although not shown, the other components 1a are made of a core material, an insole, a covering cloth, and the like and have the same shape and thickness as those of a normal slipper bottom portion. Therefore, the materials used include, for example, cardboard, EVA (ethylene / vinyl acetate copolymer), etc., EVA, urethane, etc. for the insole, natural cloth, recycled fiber, It is a semi-synthetic fiber or a synthetic fiber. Therefore, the bottom portion 1 can have a firm and rigid rigidity similar to that of a normal slipper.

In the case of another embodiment corresponding to claim 1, the buffer layer 4 is removed from the first embodiment, which is suitable when soft comfort is not particularly required.

In the second embodiment corresponding to claim 3, as shown in FIG. 2, the anti-slip piece 5 is arranged on an arbitrary portion of the bottom cloth 3 to ensure the anti-slip function. This ensures that the bottom part 1 can be prevented from slipping. As the material of the anti-slip piece 5, a rubber material or a synthetic resin agent having a value larger than the friction coefficient of the surface of the bottom cloth 3 is used. The softness (hardness) of the rubber material can be easily adjusted by sulfur and other compounding agents, and the synthetic resin agent can be easily adjusted by, for example, a plasticizer (used for PVC). Therefore, when the anti-slip piece 5 is made of a material having softness weaker than the shock absorbing function of the bottom cloth 3, the shock absorbing function of the bottom cloth 3 is impaired. For this reason, the anti-slip piece 5 is arranged at a position retracted from the surface of the bottom cloth 3 (see FIG. 2), and the bottom cloth 3 always comes into contact with the floor surface first when walking, and the anti-slip piece 5 is placed on the floor after shock absorption. Since it hits the surface, direct hit between the anti-skid piece 5 and the floor surface is prevented, and the generation of impact noise is prevented. On the other hand, when the anti-slip piece 5 is made of a material having a softness equal to or more than the shock absorbing function of the bottom cloth 3, the shock absorbing function of the bottom cloth 3 is not impaired. For this reason, since the anti-slip piece 5 does not generate an impact sound with the floor surface, it can be arranged at the same position as the surface of the bottom cloth 3 or at a protruding position. Although not shown, the disposition position of the anti-slip piece 5 is selected to be a position required to prevent slippage during walking, such as the front part or the heel part of the bottom cloth 3. Further, as another embodiment corresponding to claim 3, a structure in which the buffer layer 4 is removed from the second embodiment is also possible, which is suitable when soft comfort is not particularly required.

The third embodiment corresponding to claims 4 to 6 is partially different from the first and second embodiments described above in that the above-mentioned non-woven fabric 7 is not used on the entire surface of the bottom cloth 6. This is the configuration used. For example, in the case where the surrounding area is a normal EVA 8 as shown in FIG. 3A and the inside is a non-woven fabric 7, as shown in FIG. 3B, the non-woven fabric 7 is divided into two parts, the surrounding part is EVA 8, and the non-woven part is divided into two parts as shown in FIG. 3C. The non-slip piece 5 is arranged on a part of the outer circumference 7 to form the EVA 8. It should be noted that the use plane shape and the disposition position of the non-woven fabric 7 and the non-slip piece 5 are not limited to those shown in FIG. According to the third embodiment having the above-described configuration, the amount of the non-woven fabric 7 used can be saved and can be effectively limited to the portion that comes into contact with the floor surface, so that it is possible to effectively prevent the generation of patter noise.

The fourth embodiment corresponding to claim 7 is a configuration in which the non-woven fabric 7 of the bottom cloths 3 and 6 is subjected to an antistatic treatment as compared with the embodiments of claims 1 to 6 described above. As a result, dust and the like can be prevented from adhering to the bottom cloth 3, and a hygienic slipper can be obtained. This antistatic treatment prevents dust and the like from adhering to the bottom cloth 3 itself due to an electrostatic force. The main mechanism of the antistatic property here is to rapidly neutralize and leak the static electricity accumulated in the polymer compound, and a surfactant or hydrophilic polymer is used. For example, polyacrylic acid derivatives of cationic electrolyte polymers and polyvinylamine derivatives are applied. Another method is to mix a small amount (0.1 to 0.2%) of conductive fibers in a non-woven fabric to prevent electrification by the discharge effect. The conductive fiber is, for example, a composite fiber in which a conductive polymer obtained by mixing carbon particles or metal oxide (semiconductor) particles with a polymer at a high ratio and a normal polymer are mixed (carbon fiber, stainless fiber, etc.).

A fifth embodiment corresponding to claim 8 is different from the above-described embodiments of claims 1 to 7 in that the nonwoven fabric 7 of the bottom cloths 3 and 6 is subjected to at least one of antibacterial processing and antifouling processing. It is a composition. As a result, the bottom part 1 can be kept hygienic and clean in appearance. Fibers that are subjected to antibacterial processing (including antibacterial and deodorant processing) are fibers that are kneaded by a method in which an antibacterial agent is kneaded at the time of making the fibers, or by post-processing methods that are added after the fibers or nonwoven fabrics are formed. In addition, antibacterial treatment is performed by mixing an antibacterial agent into the synthetic resin agent. An example of an antibacterial agent in the method of kneading into fibers is a metal type such as silver, copper and zinc, and an example of the post-processing method is a silicon quaternary ammonium salt type. The antibacterial agents also include natural antibacterial agents (such as chitosan). In the present invention, a commercially available product is used, and from the viewpoint of safety, the fiber guaranteed by the “SEK” mark given by the Textile Products Sanitation Council is used. More specifically, it is a product of Fuji Spinning Co., Ltd. under the trade name of "chitoporii", which is a mixture of cellulosic polynosic fibers with chitosan (a polysaccharide derived from crab shells) and is effective against Staphylococcus aureus. Other examples include Kuraray's trade name "Martha Clean"; silver ion-bonded to ceramics and kneaded into polyester short fibers, Shikibo's trade name "NOMOS"; post-processing aliphatic imide-based drug (Food additive), it is effective against methicillin-resistant Staphylococcus aureus (MRSA), which is considered to be the source of nosocomial infection. This would be effective for use in hospitals.

In addition, so-called antifouling treatment (including washing recontamination prevention, stain removal effect, etc.) takes into consideration the disadvantage of synthetic fibers that oily stains are difficult to remove once attached, taking into consideration the fact that the surface of fibers is made hydrophilic and stains, In particular, it is a process that prevents oily dirt from adhering and that even if it adheres once, it can be easily washed off. For example, there is a polyester fiber in which a block copolymer of polyethylene glycol and polyethylene terephthalate is applied to form a film on the surface of the polyester fiber to make it hydrophilic.

The aforementioned antifouling treatment also includes so-called waterproofness. This waterproof property is a broad concept including water resistance, water repellency, and water leakage resistance. As an example, a fluororesin-based processing agent may be attached to the fiber so as to obtain water repellency and oil repellency. The target fibers are various fibers such as natural fibers and chemical fibers, and since they are breathable, they are not completely waterproof. However, since it repels water and oil, it does not easily get dirty.

The antistatic treatment, the antibacterial treatment, the antifouling treatment, etc. are not limited to the non-woven fabric of the bottom cloth 3 as described above, but can be used for other constituent members of the bottom portion 1 and the constituent members of the upper portion 2. Is. For example, although illustration is omitted, when the covering cloth used for the upper part 2 and the like is formed of antibacterial fibers, when one side of the nonwoven fabric subjected to the antibacterial treatment is disposed in the upper part 2 or the bottom part 1, the bottom part 1 Various kinds of use modes are adopted, for example, when the material to be used such as the insole is subjected to antibacterial treatment, or when these are simultaneously performed.

[0020]

[Effect of the invention]

 Since it is the slipper according to the first, second, and third aspects of the present invention configured as described above, it is possible to prevent the generation of pattering noise during walking while ensuring the rigidity of the bottom portion. In particular, the slipper according to claim 2 can provide a soft wearing comfort, and the slipper according to claim 3 can surely prevent the bottom from slipping. In addition, in the slippers according to claims 4, 5, and 6, each of the above effects can be more effectively exhibited in the necessary bottom portion. Furthermore, in addition to the above, the slipper of claim 7 can prevent dust and the like from adhering to the surface due to static electricity, thereby achieving hygiene. The slipper according to claim 8 can be kept hygienic and clean in appearance.

[Brief description of the drawings]

FIG. 1 is a side view showing an enlarged cross section and a cross section of a bottom of a slipper of an embodiment corresponding to claim 2;

FIG. 2 is a sectional view showing a main part of an embodiment corresponding to claim 3;

FIG. 3A is a plan view of a bottom cloth having a non-woven fabric in the middle portion, and FIG.
[FIG. 3] is a plan view of a bottom cloth obtained by dividing a nonwoven fabric into two parts, and C is a plan view of a bottom cloth in which a non-slip piece is further arranged in the front portion.

[Explanation of symbols]

1 Bottom part 2 Upper part 3,6 Bottom cloth 4 Buffer layer 5 Non-slip piece 7 Nonwoven fabric 8 EVA 3a Synthetic resin impregnation layer

Claims (8)

[Utility model registration claims] 1. A slipper composed of an upper part and a bottom part made of a natural material or a synthetic resin agent, wherein a bottom cloth arranged on the side of the bottom part of the slipper that contacts the floor is formed by a needle punching method, A slipper, which is a synthetic fiber non-woven fabric having an impregnated layer of a synthetic resin agent. 2. The slipper according to claim 1, wherein a buffer layer having a thickness of 2 to 5 mm is provided inside the bottom cloth. 3. A non-slip piece of a rubber material or a synthetic resin agent is disposed on a planar part of the bottom cloth, and the non-slip piece is a material having a softness equal to or more than the shock absorbing function of the bottom cloth. In the case where the non-slip piece is a material having a softness weaker than the shock absorbing function of the bottom cloth at the same position as the surface of the bottom cloth in the cross-sectional direction or in a protruding position, it is located at a position retracted from the surface of the bottom cloth. The slipper according to claim 1, wherein the slipper is provided. 4. In a slipper composed of an instep and a bottom made of a natural material or a synthetic resin agent, a part of the bottom cloth disposed on the side of the bottom of the slipper that contacts the floor is formed by a needle punch method. And a slipper made of a synthetic fiber non-woven fabric having an impregnated layer of a synthetic resin agent on the back surface. 5. The slipper according to claim 4, wherein a buffer layer having a thickness of 2 to 5 mm is provided inside the bottom cloth. 6. A non-slip piece of a rubber material or a synthetic resin agent is disposed on a planar part of the bottom cloth, and the non-slip piece is a material having a softness equal to or more than the shock absorbing function of the bottom cloth. In the case where the non-slip piece is a material having a softness weaker than the shock absorbing function of the bottom cloth at the same position as the surface of the bottom cloth in the cross-sectional direction or in a protruding position, it is located at a position retracted from the surface of the bottom cloth. The slipper according to claim 4 or 5, which is provided. 7. The slipper according to claim 1, wherein the non-woven fabric of the bottom cloth is subjected to antistatic treatment. 8. The slipper according to claim 1, wherein the non-woven fabric of the bottom cloth is treated with at least one of antifouling treatment and antibacterial treatment.