JPS59177009A - Bucket sheet - Google Patents

Abstract

1. Bucket seat comprising a lower frame (1) supporting the bottom, an upper frame (2) supporting the back and two platforms (3) each fixed to one of these frames (1, 2) and in which at least one of the platforms (3) comprises a central surface (4) provided on two sides with wings (5) forming an angle with the said central surface and extending on the same side thereof, this platform (3) comprising anchoring means (6), characterized by the fact that these anchoring means (6) are connected to the corresponding frame (1, 2) by resilient means (7), by the fact that the wings (5) of the platform (3) are bound up and monolithic with its central portion (4) and by the fact that this platform (3) is an inextensible material.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to seats, particularly automobile seats, and also to packet seats of any type. In order to improve the seating comfort of a chair or vehicle seat, it is possible to form lateral support means on the back as well as on the seating surface of the user, which remains in place even during high speed and curved driving. Proposed.

In known notebook seats, these lateral support means were made of bolsters and/or sheet fillings. The disadvantage of this is that it wears out relatively quickly and loses its supporting effect.

The cerato sheet according to the present invention eliminates the above-mentioned drawbacks and includes a lower frame supporting the bottom, an upper frame supporting the back, and two platforms fixed to each of these frames, at least one platform. includes a central plane on two sides and has wings on each side at an angle with the central plane, the two wings extending on the same side as the central plane, and the platform is fixed. devices, further characterized in that these fastening devices are connected to the corresponding frame by elastic devices.

Two embodiments of a packet sheet according to the invention are shown schematically in the accompanying drawings.

An armchair or .zeta.kerato seat according to the invention is shown schematically in FIG. 1, comprising a lower horizontal frame 1 and an upper frame 2 forming the back of the seat hinged to the lower frame 1.

These two frames are usually made of metal, pressed products,
shaped or made of tubular elements.

The support surfaces of the seat, bottom and back are generally formed by a platform 3 connected to a corresponding frame 1.2 by means of springs. This assembly constitutes the supporting framework of the seat and then receives padding and bolsters, such as fabric-covered plastic foam or synthetic leather, to give the seat its contour.

Generally, the platform 3 is made of metal wire, grid, plastic plate, etc., and has a generally planar shape. There is also a packet sheet in which the platform is made of a rubber diaphragm, that is, an elastic body, which has a central flat surface surrounded by metal wires and a flange extending over a framework.

Unlike these existing platforms, the Nonoket seat according to the present invention is arranged in two planes formed at an angle with the central portion 4 and a substantially flat central plane 4 provided on the two sides. It includes a rigid platform 3 with flanges or wings 5 giving the platform a generally grooved shape. In the illustrated embodiment,
These channel-shaped platforms are made of injection or molded plastic material and are perforated as shown.

These integrally formed lattice-shaped platforms 4.5 are
It comprises an anchoring device 6 connected to the frame 2 or 1 of the seat by a spring 7. The desired stiffness or flexibility of the sheet is obtained on the one hand by controlling the stiffness of the platforms 4, 5 themselves and on the other hand by the force of the springs 7.

In this way, subsidence is avoided since the bottom or back packet or base layer of the sheet is already provided by the platform without any filling.

In order to increase the rigidity of the wings 5 of the platform 3, the anchoring device 6 is provided with ribs 8 (see FIG. 3).

In the embodiment of FIG. 4, the spring 7 is connected to the platform 4.
, 5 is directly attached to the fixing device 6.

It will be appreciated that the lattice-shaped platform described above may be made of stamped, pressed and bent steel or any other suitable material.

Apart from this, the sheet has only one part forming the back or bottom.
Can have a lattice platform of only one.

The spring 7 can be replaced by any elastic member, such as a rubber band or a ring.

What is important in making the sheet according to the invention is that the platform, although flexible, does not stretch to maintain the desired shape of the ceratosheet.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of the structure of a car seat, Figure 2 is a
Fig. 3 shows a plant form used as a frame for the central portions of the back and bottom parts of a two-seat seat according to the invention;
A cross-sectional view of the structure for securing the form, FIG. 4, shows an alternative manner of securing the platform to the frame of the seat. Reference numerals in the drawings indicate 1, 2...frame, 3...platform, 4...center plane, 5...wing section, 6...fixing device, 7...spring.

Claims (1)

[Claims] 1. A lower frame for supporting the bottom, an upper frame for supporting the back, and two platforms fixed to each of these frames, with at least one platform central plane and a central plane and one platform. Packet sheet, characterized in that it has wings formed at two angles on both sides thereof, and that this platform has anchoring devices, and these anchoring devices are connected to the corresponding frame by elastic devices. 2. The gasket sheet according to claim 1, wherein the elastic member is a spring. 3. The packet sheet according to claim 2, wherein the spring is fixed to the platform. 4. A keratosheet according to any one of the above claims, characterized in that the platform is molded or injection molded plastic. 5. Claim 3, characterized in that the spring is embedded within the plastic material forming the platform.
The packet sheet described in Section 4 or Section 4. 6. The packet sheet according to claim 1 or 5, wherein the platform has a hole portion. 7. The packet sheet according to any one of the above claims, characterized in that the wing portions of the platform are integrally fixed to the central portion of the platform, and the plant form is made of a non-extensible material. .