JP2008228832A - Stool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stool capable of radiating far infrared rays so as to exert a sufficient relaxing effect. <P>SOLUTION: The stool includes a seat surface 11 provided with a carbon plate 11A for which graphite or graphitized carbide is calcinated on an upper surface and a backrest 12 provided with a carbon plate 12A in which the graphite or the graphitized carbide is calcinated on a front surface so as to radiate a large amount of the far infrared rays near a user. On the back surfaces of the carbon plates 11A and 12A, heating elements 11C and 12C abut. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seat such as a chair, a seat, a car seat, and a toilet seat.

  Conventionally, various proposals have been made in order to enhance the comfort of a person sitting on a person. For example, in Patent Document 1, by using a cushion material made of a foam containing charcoal powder on the seat surface of a chair, etc., it is possible to improve deodorization by sweat and odor adsorption and heat retention by far-infrared radiation. Yes. Moreover, in patent document 2, it is supposed that the temperature rise at the time of heating will be quickened and comfort will be improved by installing in the toilet seat the planar heat generating body which contained conductive carbon in the synthetic resin.

JP-A-10-165260 Japanese Patent Laid-Open No. 11-244198

  However, since the posture of a human being sitting is almost constant, blood circulation tends to be inhibited over time, and it is often difficult to relax. The inventor of the present application has conducted intensive research focusing on the fact that if the carbon material is installed on a person sitting on a person, the circulation of the user's blood is promoted by the emitted far-infrared radiation and has a relaxing effect. It was. In the following, in this application, what a person sits on and uses is referred to as a seat, and specifically refers to a chair, a chair, a car seat, a toilet seat, and the like.

  The charcoal of the chair of Patent Document 1 is a carbon material and can be expected to emit far-infrared radiation. However, since the mechanical strength of charcoal is low, it must be powdered, and it is contained in the foam at a predetermined ratio. . Therefore, in terms of the amount of far-infrared radiation that reaches the human body, it is not always sufficient to achieve a relaxing effect. Further, although the conductive carbon of the toilet seat of Patent Document 2 is also a carbon material and may have far-infrared radiation, it reaches the human body because powdered or fibrous carbon is included in the synthetic resin at a predetermined ratio. In terms of the amount of far-infrared radiation, it is not always sufficient for a relaxing effect.

  This invention is made | formed in view of the reason which concerns, The objective is to provide the seat which can radiate | emit far infrared rays so that there may exist sufficient relaxation effect.

  In order to achieve the above object, the seat according to claim 1 is provided with a seating surface having a carbon plate on the upper surface of which graphite or graphitized carbide is fired.

  According to a second aspect of the present invention, there is provided a backrest comprising a backrest having a carbon plate on which a graphite or graphitized carbide is baked on the front surface.

  According to a third aspect of the present invention, in the stool described in the first or second aspect, the stool is a chair, and a heating element is in contact with the back surface of the carbon plate.

  The stool described in claim 4 is the stool described in claim 1, wherein the stool is a toilet seat, and a heating element is in contact with a part of the back side of the back surface of the carbon plate. Features.

  According to a fifth aspect of the present invention, in the seat according to any one of the first to fourth aspects, the graphite or graphitized carbide is fired in a porous shape.

  The stool described in claim 6 is the stool described in any one of claims 1 to 5, wherein the carbon plate contains silver.

  The stool described in claim 7 is the stool described in any of claims 1 to 6, wherein the carbon plate contains phthalocyanine.

  According to the seat of the present invention, since the carbon plate on which graphite or graphitized carbide is baked is arranged in the vicinity of the user, a sufficient relaxing effect can be achieved by the far infrared rays to be emitted. Moreover, since the mechanical strength is high, it has sufficient durability against the weight of the user and the impact when seated.

  The best mode for carrying out the present invention will be described below with reference to the drawings. 1A and 1B show a chair 1 that is a seat according to an embodiment of the present invention. FIG. 1A is a plan sectional view, and FIG. 1B is a front sectional view cut along line AA. The chair 1 includes a seat surface 11, a backrest 12, and legs 13.

  The seat surface 11 includes a carbon plate 11A, which will be described in detail after being provided at the center of the upper surface, and a seat surface body 11B into which the carbon plate 11A is fitted. The material and shape of the seat surface main body 11B are not particularly limited as long as the depressed portion can be formed. For example, the material is synthetic resin, metal, wood, etc., and the shape is a quadrangular shape with rounded corners. A thin cushioning material may be placed on the upper surfaces of the carbon plate 11A and the seating surface main body 11B, and the upper surface may be covered with leather, vinyl, cloth, or the like in order to improve sitting comfort, beauty, or the like. An elbow rest can also be attached.

  The backrest 12 includes a carbon plate 12A, which will be described in detail after being provided at the center of the front surface, and a backrest main body 12B into which the carbon plate 12A is fitted. The material and shape of the backrest main body 12B are not particularly limited as long as the depressed portion can be formed. For example, the material is synthetic resin, metal, wood, etc., and the shape is a quadrangular shape with rounded corners. A thin cushioning material may be placed on the front surface of the carbon plate 12A and the backrest main body 12B, and the front surface may be covered with leather, vinyl, cloth, or the like in order to improve sitting comfort, beauty, or the like.

  The material and shape of the leg 13 are not particularly limited. For example, the material is synthetic resin, metal, wood, etc., and the shape may be four legs like the counter chair shape or dining chair of FIG. The chair 1 can be variously modified. For example, an elbow rest can be attached, or the leg 13 can be omitted and used as a seat chair or a car seat. Further, the backrest 12 can be omitted.

  Next, the carbon plate 11A of the seat surface 11 and the carbon plate 12A of the backrest 12 will be described in detail. The carbon plate 11A and the carbon plate 12A may have the same shape (for example, a disk shape having a diameter of about 20 cm and a thickness of about 1 cm) or may be different.

  The carbon plates 11A and 12A are carbon fired bodies having a crystal structure with high density and order. This carbon fired body can be manufactured as follows. That is, about 5% by weight of a binder such as a phenol-based adhesive, pitch, or tar is added to a carbon powder of a carbide such as graphite or bamboo charcoal, and is hardened and pressure-molded into a predetermined lump (for example, a square). And it heats in the state which oxygen deficient, and bakes at about 2000-3000 degreeC. Carbides such as bamboo charcoal are graphitized. In this state, the raw material carbon powders are bonded to each other, and the entire predetermined lump is crystallized integrally. In addition, the phenol component, pitch, or tar is volatilized at about 1200 ° C. during the temperature increase. Thereafter, the heating is stopped and the carbon plates 11A and 12A are processed. Since the binder is volatilized in this carbon fired body, almost 100% (99% or more) is a carbon material.

  Since the carbon fired body having a crystal structure has a crystal structure, it has a high mechanical strength while being a carbon material. Therefore, the carbon plates 11A and 12A have sufficient durability against the weight of the user and the impact when seated. Since the carbon plates 11A and 12A are substantially 100% carbon materials, a user who radiates a large amount of far-infrared rays by energy absorbed in the form of external heat, light, etc., and touches the carbon plates 11A and 12A through clothing. It acts on the subcutaneous tissue, blood vessels, etc. of the hip or back of the body to promote blood circulation, thereby producing a relaxing effect or a health promoting effect. The amount of far-infrared rays that reaches the human body varies greatly from the radiation amount of the carbon plates 11A and 12A, the distance to the human body, and the like. In addition, it has been confirmed by the present inventor that the carbon material has an effect of increasing brain α-waves, and a relaxation effect or a health promotion effect can be expected accordingly.

  The surfaces of the carbon plates 11A and 12A are desirably coated with a water-based resin or the like in order to prevent fine wear and defects.

  The carbon plates 11A and 12A emit far infrared rays even at room temperature, but the amount of far infrared rays increases when heated by body temperature. Desirably, heating elements (for example, planar or string-like heaters, or in some cases, heating tools filled with chemical substances) 11C and 12C are brought into contact with the back surfaces of the carbon plates 11A and 12A. The carbon plates 11A and 12A have high thermal conductivity (for example, about 3 W / m · K), and even if the heating elements 11C and 12C are small, the entire carbon plates 11A and 12A are quickly and uniformly heated. Thereby, the amount of far-infrared radiation is further increased.

Moreover, the resistivity of the carbon fired body is about 1 × 10 ⁻³ Ω · cm, and the conductivity is about the lower part of the conductor. Even if static electricity is generated due to friction between the user's clothes and the stool due to grounding (not shown) of the carbon plates 11A and 12A, the electric charge is always discharged. Accordingly, when the human body is charged, static electricity that tends to accumulate fatigue is removed, and fatigue is less likely to occur.

  The carbon fired bodies of the carbon plates 11A and 12A can be made porous. The porous carbon fired body has many voids (porous), although not as much as the carbide itself. Specifically, when a binder is added to the carbon powder of the raw material and hardened, it can be made into a porous shape by making it into a fibrous form or an aggregated form of particles.

  The porous carbon fired body can adsorb (deodorize) sweat itself, odors such as sweat and tobacco, and make the chair 1 more comfortable. The porous carbon fired body has a slightly lower mechanical strength than that which is not porous. However, the carbon plate 11A, 12A has sufficient mechanical strength as described above.

  The porous carbon fired body preferably contains silver (for example, about 1% by weight). It is known that the smell of human sweat is mainly caused by germs decomposing sweat. Silver can prevent the generation of odor from sweat adsorbed by suppressing various bacteria by its antibacterial action. In addition, silver on the surface of the carbon fired body also has an effect of directly exerting an antibacterial action against bacteria on the skin. Silver can be included in the carbon fired body by dissolving or dispersing in a solution and impregnating it.

  The porous carbon fired body preferably contains phthalocyanine (for example, about 1% by weight). Phthalocyanine exhibits a deodorizing action by catalyzing the oxidation reaction of odor components. Since the carbon fired body contains phthalocyanine, the odorous component adsorbed in the voids can be changed to another substance, so that the deodorizing action is prevented from being saturated and the deodorizing action can be exhibited. This phthalocyanine reacts well even at room temperature and has a long life because it performs a cycle reaction. Thereby, a deodorizing function can be maintained for a long period. Note that phthalocyanine exists as a compound such as metal phthalocyanine polycarboxylic acid (specifically, cobalt phthalocyanine tetracarboxylate, iron phthalocyanine tetracarboxylate, cobalt phthalocyanine octacarboxylate, or iron phthalocyanine octacarboxylate). The phthalocyanine compound can be dissolved or dispersed in a solution and impregnated to be included in the carbon fired body.

  In order to reduce costs, it is possible to omit either the carbon plate 11A of the seating surface 11 or the carbon plate 12A of the backrest 12.

  Next, a toilet seat 2 that is a seat according to another embodiment of the present invention will be described. FIG. 2 shows the toilet seat 2, (a) is a sectional view in plan view, and (b) is a sectional view in front view cut along the line BB. The toilet seat 2 has an upper surface and a lower surface that are substantially flat, has a substantially annular shape in plan view (or may have a horseshoe shape), and is attached to a toilet body (not shown) so as to be freely opened and closed.

  The toilet seat 2 is composed of a seat surface 21, and the seat surface 21 is composed of a carbon plate 21 </ b> A having a horseshoe shape in plan view provided on the back side and a seat surface body 21 </ b> B in which it is fitted into the depressed portion. The material of the seat surface main body 21B is a hard synthetic resin. It is desirable that the upper surface of the carbon plate 21A and the seat surface main body 21B in which it is fitted be coated with aqueous acrylic or the like in order to fill a slight gap.

  The size of the carbon plate 21A is not particularly limited as long as it can contact the user's buttocks. For example, the carbon plate 21A has a width of 5 cm and a thickness of 1 cm. The manufacturing method and structure of the carbon plate 21A are the same as those of the carbon plates 11A and 11B. The effects are the same as those of the carbon plates 11A and 11B, but in particular, by receiving far-infrared rays at the buttocks, it is effective in promoting urination and improving colic.

  In the case of a heating toilet seat, a heating element (for example, a planar or string heater) is embedded in the toilet seat 2. However, since the heat conductivity of the carbon plate 21A is high, there is no need to route the heating element. It is only necessary that a part of the side is in contact with the carbon plate 21A. Thereby, cost can be reduced or the toilet seat can be prevented from becoming thick.

  The seats according to the embodiments of the present invention have been described above, but the present invention is not limited to those described in the embodiments, and various design changes can be made within the scope of the matters described in the claims. It is. For example, the carbon plates 11A, 12A, and 21A can be divided into a plurality of parts and leave only particularly necessary portions.

BRIEF DESCRIPTION OF THE DRAWINGS The chair which is a seat which concerns on embodiment of this invention is shown, (a) is planar view sectional drawing, (b) is front view sectional drawing cut | disconnected by the AA line. The toilet seat which is the seat which concerns on another embodiment of this invention is shown, (a) is planar view sectional drawing, (b) is front view sectional drawing cut | disconnected by the BB line.

Explanation of symbols

1 Chair (stool embodiment)
2 Toilet seat (another embodiment of a seat)
11, 21 Seat
12 Backrest 11A, 12A, 21A Carbon plate

Claims (7)

  A stool comprising a seating surface having a carbon plate on which an upper surface of graphite or graphitized carbide is baked.   A stool characterized by comprising a backrest having a carbon plate fired with graphite or graphitized carbide on the front surface. In the seat according to claim 1 or 2,
The seat is a chair, and a heating element is in contact with the back surface of the carbon plate. In the stool described in claim 1,
The seat is a toilet seat, and a heating element is in contact with a part of the back side of the back surface of the carbon plate. In the seat according to any one of claims 1 to 4,
The seat according to claim 1, wherein the graphite or graphitized carbide is fired in a porous form. The seat according to any one of claims 1 to 5,
The seat according to claim 1, wherein the carbon plate contains silver. In the seat according to any one of claims 1 to 6,
The seat, wherein the carbon plate contains phthalocyanine.

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