JPH053894A - Mattress - Google Patents

Abstract

PURPOSE:To provide the mattress having moderate hardness and flexibility, being excellent in bendability and gas permeability, and especially, being suitable for a floor plate undulation type bed. CONSTITUTION:As for padding 3, on the surface and the reverse side of a cushion material made of nonwoven cloth, many groove parts 2 are formed in the horizontal direction. The groove parts 2 are formed so as to alternate with each other roughly between the groove parts whose surface and reverse side are opposed to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mattress, and more particularly to a mattress that uses a filling material having excellent flexibility and is suitable for an undulating bed of a floorboard.

[0002]

2. Description of the Related Art The functionality of a bed to be used is extremely important when medical treatment is required for a long period of time, for example at home or in a hospital. That is, it is necessary to have appropriate compression hardness and cushioning property with little settling, and further appropriate breathability and heat retention. Also, in terms of functionality, many of them are constructed with floorboard undulations in order to make it easier for people to wake up and to take a comfortable posture during meals, and it is also necessary for the mattress to bend following the undulations of the floorboards. Therefore, there is a demand for something that can bend relatively easily.

[0003] Conventionally, well-known mattresses are those in which a cushion material made of a plastic foam such as polyurethane foam or a thick non-woven fabric is used as a pad, and those in which a spring is included.

However, plastic foam such as polyurethane foam is generally too soft, lacks breathability, tends to get stuffy, and is not comfortable for a long-term care recipient. Also, a mattress using a normal fiber-integrated padding and a mattress containing a spring have appropriate hardness and cushioning properties, but are not bendable and are suitable for beds with undulating floorboards. Absent.

As a padding of a mattress having flexibility and flexibility suitable for an undulating floorboard bed, a patient mattress in which grooves are vertically and horizontally arranged at symmetrical positions on the front and back sides of a semi-rigid plastic foam slab as shown in FIG. The filling is known. (Jitsuko Sho-27-24646, Jitsuko Sho-57-
(Japanese Patent No. 27458)

However, the above mattress padding is made of a thick plate made of semi-rigid plastic foam such as expanded polystyrene and polyethylene foam, and the material itself has no air permeability, and the groove has a thickness of plastic foam. Since it is extremely small, there is a problem that the groove is easily damaged by repeated bending.

Therefore, it is conceivable to replace the semi-rigid plastic foam with a fibrous structure having the above-mentioned form. In this case, although the air permeability is extremely good, the flexibility is slightly insufficient. ..

Further, Japanese Patent Application Laid-Open No. 1-299507 discloses a cushioning material having a structure as shown in FIG. 6 as an article having a fiber structure and improved flexibility. That is, a cushioning material for a mattress that holds a flat plate-shaped member formed by needle punching an assembly of innumerable crimped staples alternately and vertically bent and connected to form a corrugated plate shape. Is. However, the shape of the corrugated sheet of this cushioning material tends to collapse due to external pressure, and in order to hold it, many threads are passed in the direction perpendicular to the corrugated sheet (longitudinal direction), or the entire mat is covered with a cloth for reinforcement. Is required, and it is difficult to withstand repeated bending over a long period of time.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide the necessary performance as a mattress, that is, the appropriate hardness and the cushioning property with less fatigue. The present invention provides a mattress having flexibility and excellent flexibility, which is suitable for a floor-board undulating bed used especially in medical facilities.

[0010]

The above-mentioned object is to form a large number of grooves in the front and back of a non-woven cushion material in the lateral direction, and the grooves are staggered substantially in the middle of the grooves facing each other. It is achieved by a mattress using a filling material characterized by being formed as described above.

The non-woven fabric applied to the present invention is a natural fiber,
It is made of inorganic fibers, recycled fibers or synthetic fibers, but is preferably a non-woven fabric in which fibers mainly composed of synthetic fibers such as polyester fibers and polyolefin fibers are entangled.

The fibers constituting the above-mentioned non-woven fabric used in the present invention have a fineness of 2 to 150 denier and a fiber length of 20 because they have appropriate hardness and cushioning properties and excellent durability.
Polyester short fibers of ~ 76 mm are preferred. If the fineness is too small, the bulk cannot be obtained and the cushioning property is poor,
If the fineness is too large, it lacks flexibility.

The non-woven cushion material according to the present invention is preferably prepared by appropriately mixing core-sheath type composite binder fibers such as polyester, nylon, polypropylene and polyethylene, and forming a web by a cross layer method or an air ray method through an ordinary card. It is made of non-woven fabric entangled by means such as needle punching or heat fusion.
In particular, it contains high melting point polyester short fibers having a fineness of 2 to 20 denier and a fiber length of 30 to 76 mm, and polyester short fibers having a melting point of 50 ° C. or more lower than the polyester short fibers, and the short fibers are three-dimensionally irregular. At least a part of the entangled and entangled parts are integrally fixed by a joining point formed by melting of polyester short fibers having a low melting point, and a polyester nonwoven fabric having a density of 0.005 to 0.15 g / cm ³ Are preferred.

The non-woven cushion material according to the present invention has a large number of grooves formed at least in the lateral direction on both front and back surfaces. The positions where such groove portions are formed are not symmetrical positions on the front and back sides, but are formed so as to be substantially in the middle of the surfaces where the front and back groove portions face each other. By configuring the positions of the groove portions in this way, the groove portions do not become harder and the bendability becomes better than when the groove portions are formed at symmetrical positions on the front and back sides.

The depth and interval of the groove are not particularly limited, and may be appropriately set depending on the thickness of the non-woven cushion material and the required flexibility. For example, 100m thick
If it is m, the depth is preferably about 15 to 30 mm and the interval is preferably about 80 to 120 mm. Further, it is preferable that the width of the upper portion of the groove is about 20 to 40 mm so as to reduce the unevenness of the mat surface.

In the present invention, the grooves may be formed on the entire upper and lower surfaces at predetermined intervals, but as shown in FIG. 2, it may be formed so that at least the portion to be bent in actual use can be easily bent. .. Further, if necessary, not only in the lateral direction, but also in the vertical direction to facilitate turning over, grooves may be formed to impart flexibility.

[0017]

The present invention will be described in detail below with reference to examples. Before that, a method for measuring the flexibility of the mattress filling in the present specification will be described.

<Flexibility> JIS L1096-6.19
(Bending property) It measured according to the B method (slide method). Figure 7
As shown in, the mattress padding (12) is placed on the horizontal surface table (11), and the end of the padding (12) is extended from the horizontal surface table (11) by a length L (cm). . At this time, the height difference a (cm) from the position of the upper surface of the filling material to the upper end portion (13) of the filling material was measured, and the value a was used as a numerical value showing the flexibility when the length was L.

Example 1 High melting point polyester short fibers (fineness: 13 denier, length: 5)
1 mm) and low melting point polyester short fibers (fineness 3 denier, length 51 mm) were mixed at a ratio of 80:20, and after opening, carded into a thin sheet to form a web laminated by a cross wrapper method. After heat treatment, the laminated product is sandwiched from above and below by metal plates having plate-like projections projecting laterally at predetermined intervals and heat-treated by steam to obtain a mattress of the present invention as shown in FIG. The filling used is obtained. When sandwiched between the above-mentioned metal plates, the plate-like protrusions protruding from the metal plate were set to alternate with each other.

The obtained filling was made of a non-woven cushion material having a thickness of 100 mm, a density of 0.035 g / cm ³ , a width of 85 cm and a length of 191 cm, and the groove portion was 1
The grooves were formed at intervals of 00 mm with a depth of 20 mm, and the positions of the groove portions formed on the upper surface and the lower surface were staggered as shown in FIG. The physical properties of the obtained filling are shown in Table 1.
It was as shown in. It had appropriate hardness and cushioning properties, good durability against compression, and excellent breathability.

[0021]

[Table 1]

The flexibility of the obtained mattress filling is shown in Table 2.
As shown in (1), it was extremely flexible.

Subsequently, the obtained padding was covered with a cloth covering material to obtain a mattress as shown in FIG. The resulting mattress had appropriate hardness and cushioning properties, good air permeability, favorable flexibility following the undulating motion of the floor board undulating bed, and excellent handling properties.

Comparative Example A mattress padding was obtained in the same manner as in Example 1 except that the groove portions formed on the upper surface and the lower surface were formed symmetrically to each other as shown in FIG. It was The flexibility of the obtained filling is as shown in Table 2, and Example 1
It was inferior in flexibility as compared with.

Example 2 A mattress padding was prepared in the same manner as in Example 1 except that the groove depth was 25 mm. The bending property of this product was extremely excellent as shown in Table 2.

[0026]

[Table 2]

[0027]

EFFECT OF THE INVENTION The mattress of the present invention has excellent flexibility and is very suitable for a floor board undulating bed. Further, the mattress of the present invention has good breathability, has appropriate hardness and cushioning properties, is extremely comfortable to sleep, and is most suitable for a patient who is to be treated for a long period of time.

[Brief description of drawings]

FIG. 1 is a partially cutaway appearance explanatory view showing an embodiment of the present invention.

FIG. 2 is an external view illustrating a padding of the above embodiment.

FIG. 3 is a partially enlarged cross-sectional view illustrating the filling in the above embodiment.

FIG. 4 is a partially cutaway side view explaining one usage state in the floor board undulating bed of the above embodiment.

FIG. 5 is a partially enlarged sectional view illustrating an example of a known mattress padding.

FIG. 6 is a partially enlarged sectional view illustrating an example of a known cushion material.

FIG. 7 is an explanatory diagram showing a method of measuring flexibility.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mattress 2 Grooves 3 Nonwoven fabric filling 4 Covering material 5 Floor undulating bed 6 Semi-rigid plastic filling 7 Flat plate member 8 Connecting portion 9 Bending portion 10 Cushioning material 11 Horizontal plane 12 Mattress filling 13 Upper end

Claims (1)

Claim: What is claimed is: 1. A non-woven cushion material having a plurality of grooves formed in the front and back in the lateral direction, and the grooves are formed substantially in the middle of the grooves facing each other. A mattress that uses padding that is characterized by being squeezed.