JPH11169262A - Human body supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a human body supporting device such as a chair, a seat or a mat preventing perspiration of a human body causing fatigue and a bedsore. SOLUTION: A human body supporting device formed of plastic into plate shape comprises a support body 1 relatively hard with elasticity rapidly contracted and expanded by load and its elimination, a buffer body 2 placed on the surface of the support body 1 and softer than the support body 1, with elasticity gradually contracted and expanded by load and its elimination, and a contact body placed on the surface of a buffer body 2 having intermediate hardness of both bodies 1, 2 and elasticity rapidly contracted and gradually expanded by load and its elimination. The human body supporting device is provided with a covering body bonded to the whole surface of the contact body and having the same hardness as the contact body and elasticity following the expansion/contraction of the contact body flexibly in an instant, a plurality of protruding bodies 5 protruded downward or upward from the surface or rear face of the contact body 3 or buffer body 2, a plurality of communicating holes 6 piercing from the surface of the buffer body or contact body to the back face so as to fit the protruding bodies therein, and a plurality of openings formed larger than cross-sectional area of the communicating holes 6 between the respective communicating holes 6, piercing the surface of the support body 1 or buffer body 2 to the back face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The invention according to this patent application (hereinafter abbreviated as "the invention of the present application") is directed to a support portion for a human body such as a chair for a static seat, a seat for a vehicle, and a mat for a bed, which is subjected to the pressure of the weight of the human body. It is related to the structure, especially by spreading the body pressure in the support part widely and three-dimensionally in multiple directions, reducing the local pressure, reducing the repulsion force of the support part to the body, reducing fatigue, and applying pressure by the human body A device related to a device that moderately absorbs pressure from external vibrations caused by time or movement, reduces shock to the human body, reduces temperature and humidity rise to the human body, and suppresses human sweating and floor scratches It is.

[0002]

2. Description of the Related Art In recent years, a so-called urethane home has been widely used as a conventional seating chair, a vehicle seat, a bed mat, and the like, which is widely used for supporting a human body.

[0003] However, since this urethane home is a foam, it has elasticity due to expansion and contraction of a non-foamed portion due to intake and exhaust of air in the foamed portion due to a load and elimination thereof, but the supporting portion which receives the pressure of the weight of the human body is mainly used. It sinks only in the load direction and has a large volume reduction rate. It contracts and deforms only in the load direction and directs the load in that direction, but does not distribute the load in three dimensions and in multiple directions.

In addition, since the urethane home generates heat on its surface when it is formed by so-called molding or press molding, a hardened coating is formed on the surface after molding. The elastic function of the non-foamed portion to expand and contract is further reduced.

Therefore, the urethane home is not easily deformed in a three-dimensional form of the human body, cannot disperse the load in multiple directions and three-dimensionally, and has the elasticity of the non-foamed part due to the sudden intake and exhaust of air by the foamed part. However, the human body is fatigued and is subject to strong vibrations and shocks, and the temperature and humidity rise, and the human body sweats and tends to be moist because of its rapid repulsion.

Further, as a conventional human body supporting device, there is a device which is packaged with a hard covering material for sealing a gas such as air, a liquid such as water, or a semi-solid such as a gel-like material. In any case, since the contents flow, the support of the human body lacks a sense of stability, and the skin of the human body coming into contact with the hard covering material may have a strong sense of resistance and may cause abrasion.

[0007]

DISCLOSURE OF THE INVENTION The present invention has a drawback in the above-mentioned conventional technology: the load on the human body cannot be dispersed three-dimensionally in multiple directions, the elasticity of receiving the load is rapid, and the repulsion force is also rapid and strong. To eliminate the problem that the human body is easily affected by vibration, fatigued and subjected to strong impact, the temperature and humidity rise, the human body easily sweats, the support of the human body becomes unstable, and a strong resistance to the skin is created. Aim.

[0008]

Means for Solving the Problems In order to achieve the above object, the present invention is characterized by having the following arrangement. It is relatively hard from the other components, and has a plate-like support made of foamed polyurethane resin so that it has the elasticity that causes rapid contraction deformation and its rapid expansion and restoration by load and elimination, Is soft, has a elasticity that causes a gradual shrinkage deformation by load and its elimination, and a gradual elongation recovery, a buffer formed of a polyurethane foam resin in a flat plate shape and placed on the surface of the support, And polystyrene resin, butyl rubber, softener, tackifier, and antioxidant so that it has an elasticity that has a hardness that is intermediate between that of the rubber and the buffer, and that causes rapid shrinkage deformation and its slow elongation and restoration by load and erasure. A contact body formed in a flat plate shape by a thermoplastic resin combined with an agent, and placed on the surface of the buffer,
It is formed by bonding a polyurethane resin thin film or a polyurethane resin thin film to the surface of a polyurethane resin thin plate so that it has almost the same intermediate hardness as the contact body and has flexible elasticity that immediately follows the deformation and restoration of the contact body. A coating that adheres to the entire surface of the contact body, a plurality of projections that project downward on the back surface of the contact body or upward on the surface of the buffer body, and are spaced apart in front, rear, left and right, and a contact body or buffer. A plurality of communication holes that are opened from the front surface to the back surface of the buffer or contact body so as to fit the protrusions of the body, and are arranged at intervals in front, rear, left and right, and a communication hole of the buffer or contact body. And a plurality of open ports formed between the front surface and the back surface of the support or the buffer and formed with openings wider than the cross-sectional area between them, and arranged at intervals in front, rear, left and right.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The general configuration is as follows: a support 1, a buffer 2 mounted on the surface of the support 1, and a contact body mounted on the surface of the buffer 2, each of which is formed in a plate shape or a thin film made of elastic plastic. 3 and a cover 4 that adheres to the surface of the contact body 3, and a projection 5 that projects from the back surface of the contact body 3, and a communication hole 6 that penetrates the front and back surfaces of the buffer 2 and into which the projection 5 fits. And an opening 7 that penetrates the front and back surfaces of the support 1 and that is formed wider than the cross section between the communication holes.

The details of the support 1, for example, are relatively harder than the other components, but the elasticity is such that when the load is applied, it is rapidly reduced and deformed, and when the load is left, the deformation is rapidly extended and restored. Is formed in a flat plate shape from plastic such as polyurethane foam.

The details of the shock absorber 2 are, for example, relatively softer than the other components, but are gradually reduced and deformed when a load is applied, and are gradually expanded and restored when the load is removed. It is formed in a flat plate shape from plastic such as foamed polyurethane so as to have elasticity, and is placed on the surface of the support 1.

For details of the contact body 3, for example,
Polyethylene resin and butyl rubber so as to have elasticity such that the resin has a hardness that is intermediate between that of the rubber and the buffer body 2, but rapidly shrinks and deforms when a load is applied, and the deformation slowly expands and recovers when the load is left. The softening agent, the tackifier, and the antioxidant are formed in a flat plate shape by a thermoplastic plastic compounded and placed on the surface of the buffer 2.

The details of the coating 4 are, for example, that it has almost the same intermediate hardness as that of the contact 3, but that the load of the contact 3 is rapidly reduced by the load and its elimination, and that the deformation is slowly extended and restored. A polyurethane-based plastic thin film or a polyurethane-based plastic thin plate is adhered to the surface of a polyurethane-based plastic thin plate so as to be flexible and elastic so as to immediately follow, and is adhered to the entire surface of the contact body.

The details of the projections 5 are such that a plurality of projections are projected downward on the back surface of the contact body 3 and a plurality of the projections 5 are arranged at intervals in front, rear, left and right. It may protrude.

The details of the communication hole 6 are as follows: the buffer member 2 is opened from the front surface to the rear surface so that the downward projection 5 of the contact member 3 is fitted therein, and a plurality of the communication holes 6 are arranged at intervals in front, rear, left and right. As another embodiment, the contact body 3 may be provided so as to penetrate and open from the front surface to the back surface so that the upward protrusion 5 of the buffer 2 is fitted.

The details of the opening 7 are formed between the communication holes 6 of the buffer 2 so as to be wider than their cross-sectional area, and they are opened from the front surface to the back surface of the support 1 so as to keep an interval in front, rear, left and right. According to another embodiment, the cushioning body 2 is formed between the communication holes 6 of the contact body 3 so as to be wider than their cross-sectional area and provided with the upwardly projecting body 5 on the surface. An opening may be provided so as to penetrate from the front surface to the back surface.

[0017]

Since the present invention has the above-described structure, the following effects are produced when, for example, a load on the waist of a human body is received.

Function 1: When the contact body 3 receives the vertical downward waist load via the covering body 4, the contact body 3 rapidly reduces most of the load as shown by the two-dot chain line in FIG. And the component force is rapidly transmitted diagonally downward and to the left and right, and is rapidly deformed into a shape conforming to the three-dimensional shape of the waist while being compressed and rapidly reducing the volume.

Action 2: Since the covering 4 is adhered to the contact 3 when receiving the load of the waist vertically downward, it immediately follows the deformation of the contact 3, and its horizontal portion is It is stretched by being pulled to its center and its vertical part is reduced downward, and rapidly deforms together with the contact body 3 into a shape conforming to the three-dimensional shape of the waist.

Function 3... When the waist load is applied via the cover 4 and the contact 3, the shock absorber 2 deforms the contact 3 which has been rapidly reduced and deformed, and transmits slowly to slowly. Since the hardness is softer than that of the contact body 3, as shown by the two-dot chain line in FIG.

Function 4: The support 1 when the buffer 2 is gradually contracted and receives a waist load through deformation is rapidly contracted and deformed, and at the same time, air is blown downward from the opening 7. As shown by the two-dot chain line in FIG. 5, the upper and lower openings of the opening 7 expand in a direction perpendicular to the opening, and amplify and disperse the subsidence of the load.

Function 5 As described above, when the covering body 4, the contact body 3, and the buffer body 2 receive the load of the waist of the human body from above, the lower surfaces of the plurality of projections 5 of the contact body 3 The support 1 is compressed in a four-column shape by the periphery of the opening 7 of the support 1 in a plane, and the support 1 is compressed.
It sinks into the opening 7 of the support body 1 as shown by a two-dot chain line in the figure, and supports the waist as a whole in a hammock-like manner along the three-dimensional shape of the waist.

[0023]

The present invention has the above-mentioned structure and produces an effect, and thus has the following effects.

Effect 1: The contact body 4 first has contact with the human body, and has the flexibility to immediately follow the rapid deformation and slow restoration due to the load of the contact body 3 so that the contact body 4 has the same feeling as the skin of the human body. Each part of the human body that comes into contact does not have contact resistance and does not cause abrasion.

Effect 2: Even if the load is small, the contact body 3 is rapidly deformed along the three-dimensional shape of the human body and disperses the load in multiple directions, so that the human body can be supported quickly and stably.

Effect 3: Medium hardness and rapid deformation and slow restoration of the contact body 3, soft and slow deformation and slow restoration of the buffer 2, and hard and rapid deformation and fast restoration of the support 1, so that the human body when seated Since the repulsive force of the load when moving the entire apparatus or when colliding with another object is weak, the buffering force is high and the fatigue of the human body can be reduced.

Effect 4... The buffer 2 slowly deforms by transmitting the rapid deformation of the contact body 3 and is softer than that, so that the sinking of the load can be slowly amplified and dispersed.

Effect 5 The open port 7 of the support 1 blows air downward due to the load, and the upper and lower openings expand in a right-angle direction to amplify and disperse the sink caused by the load.

Effect 6: The projections 5 and the opening 7 are compressed in such a manner that the lower surfaces of the plurality of projections 5 are planarly supported by the periphery of the opening 7 of the support 1 in the form of four pillars. At the same time, the lower surface of the buffer 2 sinks into the open port 7 of the support 1 as shown by a two-dot chain line in FIG. 5, and the waist is three-dimensionally shaped like a hammock along the three-dimensional shape of the waist. Can be wrapped and supported.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cover 4;

FIG. 2 is a perspective view of a contact body 3;

FIG. 3 is a perspective view of a buffer 2;

FIG. 4 is a perspective view of the support 1;

FIG. 5 is a sectional view of the entire apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support body 2 Buffer body 3 Contact body 4 Coating body 5 Projection body 6 Communication hole 7 Opening port

Claims (1)

[Claims] 1. A support formed of a foamed polyurethane resin in a flat plate shape so as to be relatively hard from other components and to have elasticity which causes rapid contraction deformation and rapid extension and restoration by load and elimination thereof. And a buffer formed of a foamed polyurethane resin in a flat shape and placed on the surface of the support so as to be softer than the support, and to have an elasticity that causes a gradual contraction deformation and a gradual expansion / recovery due to a load and its elimination. The polystyrene resin, butyl rubber, softener and adhesive have a hardness between the body and the support and the buffer, and have elasticity that causes rapid shrinkage deformation and its slow elongation and restoration by load and erasure. A contact body that is formed in a flat plate shape from a thermoplastic resin obtained by combining an imparting agent and an antioxidant, and that has almost the same intermediate hardness as the contact body placed on the surface of the buffer, deforms and restores the contact body A polyurethane resin thin film or a polyurethane resin thin film bonded to the surface of a polyurethane resin thin plate so that it has a flexible elasticity that immediately follows, and a coating body that adheres to the entire surface of the contact body, A plurality of protrusions that protrude upward from the surface of the buffer or the front surface of the buffer and are spaced apart in front, rear, left and right, And a plurality of communication holes that are opened through and are spaced apart in the front, rear, left and right, and formed between the communication holes of the buffer or the contact body to be wider than their cross-sectional area, and the surface of the support or the buffer body And a plurality of open ports that are open through the back to the back and are spaced apart in the front, rear, left, and right directions.