JP2000189290A - Cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a sweating feel and to enable comfortable use by disposing a cover which covers a polyurethane foam of a prescribed shape and has air permeability and a nonwoven fabric which has moisture absorption and release functions between the inside surface of the cover and the front surface of the polyurethane foam or the front and rear surfaces thereof. SOLUTION: A cushion constituting a square cushion for chairs comprises the polyurethane foam 1 of a square shape, the nonwoven fabric 2 which is integrally joined to the front surface side of the polyurethane foam 1 and the cover 3 which consists of an air permeable fabric removably covering the entire part of the nonwoven fabric 2. Catechin effective for eliminating basic uncomfortable smells of ammonia, etc., is adequately incorporated as an antimicrobial deodorant into the polyurethane foam 1. Other deodorants include active carbon. Polyacrylate fibers having excellent absorbability and releasability of moisture or these fibers blended with polyester fibers are used for the nonwoven fabric 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushion for a chair cushion, a backrest, a futon, a mattress and the like.

[0002]

2. Description of the Related Art A cushion of this kind is generally formed by covering an elastic material such as cotton or polyurethane foam with a cover.

[0003]

However, in the above-mentioned cushion made of cotton or polyurethane foam, hot air from body temperature is trapped in the cotton or polyurethane foam and sweats to give off an unpleasant sensation. Also, sweating,
If left unclean, it will emit an unpleasant odor,
This phenomenon is particularly prominent in this kind of cushion used for nursing care due to incontinence.

The present invention has been made to solve the above problems, and has as its object to provide a cushion which can be used comfortably without a feeling of stuffiness. Another object of the present invention is to provide a cushion having an antibacterial deodorizing effect.

[0005]

According to the present invention, there is provided a polyurethane foam having a predetermined shape, a breathable cover for covering the polyurethane foam, and an inner surface of the cover and a surface or the front and back surfaces of the polyurethane foam. And a nonwoven fabric provided with a moisture absorbing / releasing function.

[0006] The polyurethane foam is subjected to an antibacterial deodorizing treatment. The nonwoven fabric can be integrally laminated on at least the surface side of the polyurethane foam, or can be integrally or detachably joined to the inner surface side of the cover.

[0007]

According to the above cushion in which a nonwoven fabric having a moisture absorbing / releasing function is disposed between the inner surface of the cover and the polyurethane foam, the nonwoven fabric absorbs moisture when the humidity inside the polyurethane foam is high, and releases moisture when the humidity is low. It exhibits functions and absorbs moisture when the user sweats and the humidity rises, so it can be used comfortably without a feeling of stuffiness.

When the use is stopped and the humidity inside the polyurethane foam decreases, the nonwoven fabric releases moisture and then releases from the air-permeable cover to the outside. At this time, if the polyurethane foam has been subjected to antibacterial deodorization processing, it eliminates the odor that sweat and dirt components directly emit due to the deodorant effect and the unpleasant odor from bacteria and re-fungi that propagated as nutrients from sweat and dirt Therefore, the unpleasant odor is eliminated by the next use, and the propagation of bacteria and re-fungi can be suppressed by the antibacterial action.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cushion according to the present invention will be described below with reference to the drawings. 1 and 2
Shows the cushions that make up the cushion for a chair,
1 is a square polyurethane foam, 2 is a nonwoven fabric integrally bonded to the surface side of the polyurethane foam 1, 3
Is a cover made of air-permeable fabric that covers the entire polyurethane foam 1 and nonwoven fabric 2 so that they can be taken out.

The polyurethane foam 1 contains an antibacterial deodorant. As an antibacterial deodorant, it is preferable to use catechin, which is particularly effective in eliminating a basic unpleasant odor such as ammonia, but in addition, activated carbon is used as a deodorant, and zeolite is used as an antibacterial agent. You can also.

The cross-sectional structure of the polyurethane foam 1 is such that a low-elasticity soft urethane foam 1a is used for the surface layer on the body contact side, and a high-elasticity hard urethane foam 1b is bonded to the back side. The low-elastic urethane foam 1a has excellent cushioning properties and prevents the hips from being hurt even when sitting for a long time, and the high-elastic hard urethane foam 1b is laminated on the back side to provide strength and shape-retaining function. ing.

As the non-woven fabric 2, a polyacrylate fiber or the like which is excellent in moisture absorption and release properties or a mixture of polyester fiber and the like is used. The non-woven fabric 2 is bonded to the surface side of the polyurethane foam 1 with an adhesive,
When the humidity inside the polyurethane foam 1 rises due to sweating of the user, the polyurethane foam 1 absorbs moisture, and when the use is stopped and the humidity falls, moisture is released. The nonwoven fabric 2 can be bonded to not only the front side but also the back side of the polyurethane foam 1 to further enhance the moisture absorbing and releasing effect.

In the above embodiment, the nonwoven fabric 2 is integrally joined to the polyurethane foam 1 side. Alternatively, the nonwoven fabric 2 may be integrally sewn to the inner surface side of the cover 3 or
Alternatively, it can be detachably mounted on the inner surface side of the cover 3 in a superposed state. As a means for detachably attaching the nonwoven fabric 2 to the inner surface side of the cover 3, the nonwoven fabric 2 is attached to the inner surface of the cover 3 using a velvet type fastener (plane fastener) or the like, or as shown in FIG. A method of forming a pocket 5 on the inner surface side of the cover 3 with a permeable fabric 4 and storing the nonwoven fabric 2 in the pocket 5 so that the nonwoven fabric 2 can be taken in and out can be adopted.

When the nonwoven fabric 2 is integrally or removably joined to the inner surface side of the cover 3, the nonwoven fabric 2 can be washed together with or separately from the cover 3 by removing the cover 3. When the nonwoven fabric 2 is detachably attached to the cover 3, the cover 3 and the nonwoven fabric 2 can be individually replaced with new ones, respectively, or only the polyurethane foam 1 can be taken out and shaded.

As yet another embodiment, the polyurethane foam 1 may be used in which the entirety is covered with a plastic film.

The present invention can be similarly applied to cushions constituting a backrest, a futon, a mattress and the like, in addition to the chair cushion.

[0017]

According to the cushion of the present invention, there is an advantage that the cushion can be used comfortably without a feeling of stuffiness and also it can exert an antibacterial deodorizing effect.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the inside with a cover opened.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a sectional view showing another embodiment corresponding to FIG. 2;

[Explanation of symbols]

 1 polyurethane foam 2 non-woven fabric 3 cover

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshihide Ito 1-17-18 Edobori, Nishi-ku, Osaka-shi, Osaka F-term in Toyo Tire & Rubber Co., Ltd. 3B096 AA01 AB08 AD06 AD07

Claims (5)

[Claims] 1. A polyurethane foam having a predetermined shape, a permeable cover for covering the polyurethane foam, and a moisture absorbing / releasing function provided between the inner surface of the cover and the front or back surface of the polyurethane foam. A cushion characterized by comprising a nonwoven fabric having the same. 2. The cushion according to claim 1, wherein the polyurethane foam is subjected to an antibacterial deodorizing treatment. 3. The cushion according to claim 1, wherein the nonwoven fabric is integrally laminated on at least a surface side of the polyurethane foam. 4. The cover according to claim 1, wherein the nonwoven fabric is integrally or detachably joined to an inner surface of the cover.
The cushion described. 5. The polyurethane foam is entirely covered with a plastic film.
The cushion described.