JP2000083763A - Backrest device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely change the angle of a backrest mat by fitting an air bag with an air inflow/discharge function to the back face of the backrest mat and the upper face of a mat via proper fitting means, and adjusting the erecting angle of the backrest mat. SOLUTION: A backrest mat 2 erectably fitted with the lower edge to the middle of the upper face of a mat 1 is provided, a fabric is stretched on an air forced-in system or a shape-holding frame having a shape holding function and not deformed when a load is applied to form the backrest mat 2, and a bag body is covered on it. An air bag 6 with an air inflow/discharge function for adjusting the erecting angle of the backrest mat 2 is fitted to the back face of the backrest mat 2 and the upper face of the mat 1 via proper fitting means 5 on the back side of the backrest mat 2. The angle of the backrest mat 2 can be freely changed when the expansion degree of the air bag 6 is merely adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a backrest device.

[0002]

2. Description of the Related Art Conventionally, for example, a backrest device for raising the upper body of a bedridden or elderly person or a physically handicapped person is provided so that the upper body side of a bed floor frame can be raised and lowered, and a link or other means is driven by a driving means such as a handle. The upper body side of the floor frame is turned up and down through an up and down interlocking mechanism.

[0003] Of course, the waist of the mat laid on the floor frame is provided with a center bending joint.

[0004]

The backrest device as described above has a problem that the bed has a backrest function, so that the cost is greatly increased and the device is not widely used in ordinary households.

Accordingly, an object of the present invention is to provide a backrest device in which a backrest can be formed very easily.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a mat, a backrest mat provided with a lower edge that can be raised and lowered in the middle of the upper surface of the mat, and a backrest mat of the backrest mat. The backrest mat is mounted on the upper surface of the mat via an appropriate mounting means, and an air bag having an air inflow / outflow function for adjusting the elevation angle of the backrest mat is employed.

Further, the lower edge of the backrest mat can be detachably attached to the mat via an attachment, the attachment means of the air bag is detachable, and the air bag is formed in a horizontally long triangular prism shape.

Further, an appropriate rug, a foot mat placed on the rug from the buttocks to the feet, and a back which is undulatingly coupled to the butt side edge of the foot mat via a joint portion. In some cases, a back mat and an air bag having an air inlet / outlet function for adjusting the undulation angle of the back mat may be employed, while an overlapping surface is attached to the back surface of the back mat and the rug. .

[0009]

Embodiments of the present invention will be described with reference to the accompanying drawings.

In the first embodiment of the present invention, as shown in FIGS. 1 to 4, a backrest mat 2 having a lower edge which can be raised and lowered is provided in the middle of the upper surface of the mat 1.

The mat 1 may be a known air mat, another mat of a spring type, or a mat filled with an elastic member such as a sponge.

The backrest mat 2 is of an air press-fitting type having a shape-retaining function, which is not deformed by a load, or a cloth-like material stretched over a shape-retaining frame and covered with a bag.

The lower edge of the backrest mat 2 with respect to the mat 1 can be freely raised and lowered (attached so as to form a joint).
In addition to attaching both side edges of a band-shaped tape such as a cloth to the mat 1 and the backrest mat 2 by sewing or the like so that the band-shaped tape becomes an articulation, as shown in FIG. For example, a surface tape 4 as a fixture 3 is attached to the entire length of the lower edge of the backrest mat 2, and the overlapping surface tapes 4 are engaged. When released, the backrest mat 2 can be removed.

On the rear side of the backrest mat 2, air inflow / outflow for adjusting the undulation angle of the backrest mat 2 attached to the rear surface of the backrest mat 2 and the upper surface of the mat 1 via appropriate attachment means 5. An air bag 6 with a function is provided.

As the mounting means 5, for example, a surface tape 7 is attached to the overlapping surface so that the air bag 6 can be detached when it is not needed, and the air bag 6 can be detachably attached by engaging the overlapping surface tapes 7. I can do it.

The air bag 6 has an air inflow / outflow function.
In the case shown, a mouthpiece 9 with a stopper 8 is provided, and
After the air is press-fitted, the mouthpiece 9 is closed with the stopper 8. However, a method may be adopted in which air is injected by a motor or a manual pump (not shown) from a hose connected to the mouthpiece 9. .

With the above configuration, the backrest mat 2
The airbag 6 attached to the backrest 2 and the mat 1 via the attachment means 5 is inflated to support the backrest mat 2.

The tilt angle of the backrest mat 2 is determined by the degree of inflation of the air bag 6, that is, by bleeding (discharging) the air from the air bag 6.

Further, a triangular prism having a horizontal axis is used for the air bag 6.

Then, as shown in FIG. 2, when the right-angled corner of the right triangle is located at the lower edge of the rear surface of the backrest mat 2, the backrest mat 2 can be erected substantially vertically.
When the air bag 6 is used as shown in FIG. 3, the backrest mat 2 falls down halfway, and when the air in the airbag 6 is further evacuated, the backrest mat 2 is further lowered as shown in FIG. Can be.

The mounting means 5 is provided on each surface of the air bag 6, and a predetermined surface of the air bag 6 is
And the surface tape 7 of the attaching means 5
Instead, for example, the air bag 6 may be attached by connecting male and female hooks or strings.

In the drawing, reference numeral 15 denotes a sheet having a shape retaining hole of the air bag 6.

In the second embodiment of the present invention, as shown in FIG. 5, the foot-side mat 12 of the foot-side mat 12 to be superimposed (placed) on the mat or futon or other rug 11 from the foot to the buttocks. A backrest mat 2 similar to that of the first embodiment is coupled in an up-and-down manner.

An air bag 6 similar to that of the first embodiment is attached and arranged on the raised backrest mat 2 and the rug 11.

Then, similarly to the first embodiment, the angle of the backrest mat 2 can be freely adjusted.

When the airbag 6 is removed and the backrest mat 2 is lowered, the foot side mat 12 and the backrest mat 2 form a single mat.

In the figure, reference numeral 13 denotes a connecting portion for connecting the backrest mat 2 to the foot-side mat 12 so as to be able to move up and down.

[0028]

The backrest device according to the present invention is constructed as described above, so that the angle of the backrest mat can be freely changed only by adjusting the degree of inflation of the air bag.

Further, since the backrest mat and the air bag are detachable from the mat, the backrest mat and the air bag can be detached when unnecessary, and only the mat can be used.

Furthermore, since a triangular prism air bag is used,
The standing (tilting) angle of the backrest mat can be changed by changing the overlapping surface of the air bag with respect to the mat and the backrest mat.

The foot mat and the backrest mat can be used as a single mat.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment.

FIG. 2 is a perspective view showing an example of use.

FIG. 3 is a perspective view showing another example of use.

FIG. 4 is a perspective view showing another example of use.

FIG. 5 is a perspective view of a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mat 2 Backrest sheet 3 Fixture 4, 7-sided tape 5 Attaching means 6 Air bag 8 Plug 9 Mouth cylinder 11 Rug 12 Foot mat

Claims (4)

[Claims] 1. A mat, a backrest mat provided with a lower edge that can be raised and lowered in the middle of the upper surface of the mat, and a backrest mat and an upper surface of the mat that are attached to the rear surface of the mat through appropriate attachment means. A backrest device comprising an air bag with an air inflow / outflow function for adjusting the elevation angle of the backrest mat. 2. The method according to claim 1, wherein a lower edge of the backrest mat is detachable from the mat via an appropriate attachment, and an attachment means for the air bag is detachable. Item 2. The backrest device according to item 1. 3. The backrest device according to claim 1, wherein the air bag is formed as a triangular prism having a horizontal axis. 4. An appropriate rug, a foot-side mat placed on the rug from the butt to the foot, and a back coupled to the butt-side edge of the foot-side mat via a joint so as to be able to undulate. With a reclining mat,
A backrest device comprising an air bag having an air inflow / outflow function for adjusting an up-and-down angle of the backrest mat, while attaching an overlapping surface to a rear surface of the backrest mat and the rug.