JPH0127898B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat suitable for use in automobiles and the like, and particularly to a seat in which each support portion is formed to be raised by the expansion and contraction of an air bag.

Conventionally, as shown in FIG. 1A, in this type of airbag type seat, airbags 4 are set at required positions on the frame 1, that is, at each support forming part, and
A pad 2 is disposed to cover this air bag 4, and an outer skin 3 is covered on the pad 4 to form a sheet, and by inflating the air bag 4 at a desired position of this sheet, thigh support, side support, and lumbar support are provided. It was made so that the parts etc. were formed into a raised shape.

However, with the above configuration, the shape and size of the airbag 4 must be changed depending on the raised area of each support part of the seat, and sharp objects such as needles may pierce the pad from the epidermis. In some cases, it has the disadvantage that it can reach the air bag and be damaged.

The present invention provides a seat that eliminates the above-mentioned drawbacks. In particular, it is possible to make the shape of the airbags arranged in each required part of the seat constant, and to prevent damage to the airbags, there is a gap between the frame and the pad. A cover is interposed therebetween, and the edge of the skin is bonded to the cover.

Embodiments of the present invention will be described in detail below with reference to FIGS. 2 to 5.

Figure 2 shows the required support parts 13a, 13b, 13c of the seat bag Sb and seat cushion Sc,
The air bags 15 are stored inside the air bags 13d, 13a', 13b', and 13c', and covers 14, 14a, 14b, 14c, and 1 are placed on the surface side of each air bag 15.
4d, 14a', 14b', 14c' are arranged, and each valve 17, 17 is connected to each air bag 15 by a pump 16.
a, 17b, 17c... The structure of the cover 14 is, as shown in FIG. Each cover 14 is rotatably pivoted to a shaft 20 which is horizontally mounted on bearing parts 19, 19 which are protruded from a desired part of the bottom of a pan structure frame 11 consisting of a rectangular bottom and a side wall around the bottom. A biasing force is applied to the shaft 20 by a torsion spring 21 wound around the shaft 20 so as to press it against the frame 11 side.

An air bag 15 is interposed between the back side of the cover 14 attached to the frame 11 in this manner, that is, between the cover 14 and the frame 11, and a pad 12 is arranged from the front side of the cover 14 to the bottom of the frame 11, and the cover is covered with a skin 13. Then, the edges of this skin 13 are tied to the skin binding pieces 18, 18 of the cover 14.
(See Figures 3 and 4) Then, air is injected from the pump 16 through the air pipe 15a into the air bag 15 through the valve 17, and the cover 14 is pushed up and the support parts 13a...13c' are inflated. When air is exhausted from each air bag 15 and the cover 14 is deflated, the torsion spring 21
Each support part 13a is moved downward by the biasing force of...
. . . The protrusion of 13c' is reduced, and each support portion can be held protuberantly at a desired height.

In this raising movement of each support portion 13a......13c', the edge of the outer skin 13 is tied to the outer skin binding pieces 18, 18 of the cover 14, so the edge of the outer skin 13 moves up and down together with the cover 14. Each support portion 13a...
...The uplift operation of 13c' is performed smoothly.

In addition, the seat bag Sb configured as above
And the seat cushion Sc is attached to each support part 13a.
. . . 13c' and the main seat are formed separately, so that the raising operation of each support part can be performed freely regardless of the main seat.

As described above, the present invention is constructed so that the airbag pushes up the cover, so if the shape of the cover is made large, even a small airbag can form a large raised support portion with a substantially flat surface. It is possible to use airbags of the same size and shape, which is advantageous in terms of cost.Also, since the airbags are protected by a cover, there is little risk of damage and can withstand long-term use, and the edges of the skin are covered. By being attached to the cover, the support part moves up and down with the cover, without causing any tension on the skin, allowing the support part to smoothly raise itself to the desired raised height, ensuring comfortable sitting comfort and retention. Accordingly, it is possible to provide a sheet having many characteristics such as the above.

[Brief explanation of drawings]

1A and 1B are schematic side views illustrating a conventional seat with an air bag, FIG. 2 is a perspective view of the seat of the present invention, FIG.
The figure is a sectional view taken along the line B--B in FIG. 2, and FIG. 5 is an enlarged perspective view of the main parts. In the figure, 11 is the frame, 12 is the pad, 13 is the skin, 14, 14a, 14a', 14b, 14b', 1
4c, 14c' are covers, 15 is an air bag, 16
1 is a pump, 17 is a valve, and 18 is a skin binding piece.

Claims (1)

[Scope of Claims] 1. A seat comprising an air bag arranged at a desired part on a frame, a pad overlaid on the air bag and covered with an outer skin, and a required raised support part formed on the surface side, The pan structure is composed of a rectangular bottom and a side wall around the bottom, and the air bag is disposed directly on the bottom of the pan structure frame, and a cover is placed between the air bag and the pad on its inner edge. The pad and the skin are pivotally connected to the bottom of the frame so that they can be rotated up and down, and the edges of the skin are tied to the cover, so that when the air bag is inflated, the pad and the skin can be moved through the cover. A sheet characterized in that it is extruded to form a required raised support portion on the sheet surface.