JPH08197994A - Vehicular seat device - Google Patents

Abstract

PURPOSE: To provide a vehicular seat device which is formed as a structure that a seat back can be smoothly overturned without deteriorating outward appearance. CONSTITUTION: A slit 14 to absorb pressing force by being elastically deformed when its pressing force is applied, is arranged in a rear end part of a seat cushion 1 to receive force by being pushed from the seat back 2 side when a seat back 2 is overturned on the seat cushion 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device for a vehicle such as an automobile, and more particularly to a vehicle in which the seat back is laid down from the rear side of the seat cushion toward the front side so that the seat back can be folded on the seat cushion. Seat device.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show an example of a conventional vehicle rear seat device. The illustrated rear seat device is composed of a seat cushion 51 and a seat back 52, and the seat back 52 is seat cushion 51.
It is located at the rear of the vehicle body
The seat cushion 51 is attached to the seat cushion 51 from the rear position (upright position) shown by the solid line in FIG. It has a structure that can be switched to the position folded up (falling position). At the fall position, the inside of the transformer room (55) communicates with the inside of the vehicle compartment (56), and the trunk room (5)
A large continuous space can be obtained from 5) into the vehicle interior (56).

[0003]

However, the following problems have been encountered in such a seat device. (1) At the rear end portion of the seat cushion 51, a waist support portion 51a for gap prevention is formed and raised, and this portion is always in contact with the lower end of the seat back 52. As a result, the seat back 52 falls
When the seat cushion 51 is rotated to stand up,
The rear end portion (the portion indicated by the symbol A in FIG. 8) comes into contact with the lower end portion of the seat back 52 and rotates while rubbing, and when the frictional force is large, the abutting portion may be wrinkled. , Rubbing causes the skin material to peel off, making it unattractive. (2) When the seat back 52 is toppled over, the interference (pushing back force) from the seat cushion 51 side is large, which makes it difficult for the seat back 52 to fall over, and may not fall to a flattened state. Difficult to use even when carrying luggage. (3) Therefore, in order to solve the problems of (1) and (2), various devices and the like have been proposed in which the hinge structure for inclining the seat back 52 is changed, but the structure is complicated, New problems such as high cost occur.

The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle seat device having a structure in which the seat back can be smoothly fallen over without deteriorating its appearance. It is in. further,
Other purposes will be clarified one after another in the content described below.

[0005]

The object of the present invention is to fold the seat back from the rear side to the front side of the seat cushion, which is the main part of the present invention, and to fold the seat back on the seat cushion. Such a vehicle seat device is achieved by providing a slit at the rear end portion of the seat cushion to absorb the pressing force by being elastically deformed when pressed from the seat back side.

Further, in carrying out the invention, it is preferable to dispose an elastic body having a smaller elastic force than the pad material in the slit, and further, the slits are provided substantially continuously or scattered over the left and right ends of the seat cushion. It may be configured.

[0007]

According to this structure, when the seat back is rotated for overturning and standing up and a pressing force is applied to the rear end portion of the seat cushion, the pressing force is absorbed by the slits and abuts each other by this absorption. The friction between the rear end of the seat cushion and the lower end of the seat back is reduced, and the abutting parts wrinkle or rub against the skin. It is possible to prevent the material from being worn. Further, when the seat back is tumbled, the interference from the seat cushion side can be absorbed by the slits to reduce the size, so that the seat back can be tumbled to a more flattened state before use.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 are schematic side views of a rear seat device for an automobile shown as an embodiment of the present invention.

In FIGS. 1 and 2, the rear seat device is mainly composed of a seat cushion 1 and a seat back 2. Further, the seat back 2 is located at a rear portion of the seat cushion 1 and is attached to the vehicle body floor 4 via a hinge 3. The seat back 2 is shown in FIG. 2 from the standing position (standing position) shown in FIG. As described above, the structure is such that the seat cushion 1 can be switched from the rear side toward the front side to the position folded over the seat cushion 1 (falling position). At the fall position, the inside of the transformer room (5) communicates with the inside of the vehicle compartment (6), and a large continuous space is obtained from the trunk room (5) to the inside of the vehicle compartment (6).

More specifically, the seat cushion 1
Is formed by covering the outside of the cushion pad 11 foam-molded as partially enlarged in FIG. 3 with the skin material 12, and at the rear end portion where the waist support portion 13 is formed and rises upward. The slit 14 is formed so that the slit 14 is carved from the rear end portion toward the front end side. The slit 14 is formed at the same time when the cushion pad 11 is foam-molded, and as shown in FIG. 4, after the cushion pad 11 is formed, the slit 14 has a substantially U-shaped cross section. The elastic body 15 is attached. This elastic body 15 has elasticity that is softer than that of the cushion pad 11 so as not to give a foreign body sensation when it hits the occupant's waist, and the slit portion 14 crushed when the external force is removed. A material that can exert self-restoring force on is selected. Further, the elastic body 15 may be integrally inserted and inserted when the cushion pad 11 is foam-molded without being mounted later.

Therefore, in the seat device having the slits 14 as described above, the slits 14 are provided when the seat back 2 is arranged in the upright position as shown in FIG.
Is expanded and the waist rest 13 is in close contact with the lower end of the seat back 2. Further, even if the occupant sits down in this state and the waist of the occupant hits the waist rest portion 13, the elastic body 15 fits the occupant's waist together with the other cushion pads 11, and does not give a feeling of strangeness. Next, the seat back 2 is tilted from the standing position to the falling position shown in FIG. At this time, when a pressing force is applied from the seat back 2 side to the seat cushion 1 side, the portion of the slit 14 of the cushion pad 11 is crushed and the pressing force is absorbed. As a result, the frictional force between the rear end portion of the seat cushion 1 and the lower end portion of the seat back 2 is reduced, and the skin material in the abutting portion is wrinkled or rubbed and the skin material is worn. Can be prevented. Further, at the same time, since the interference from the seat cushion 1 side can be absorbed and reduced by the slit 14, the seat back 11 can be used by being tumbled to a more flattened state. As shown, it becomes easy to use even when the luggage 16 is placed and used.

In the above-described embodiment, the structure in which the slit 14 is provided on the rear end portion side of the seat cushion 1 is disclosed. However, depending on the seat design, the slit 14 is brought into contact with the rear end portion of the seat cushion 1 together. It may also be provided on the lower end side of 2 to more completely prevent the trouble caused by interference. Further, although the structure in which the elastic body 15 is arranged in the slit 14 is disclosed, the elastic body 15 may not necessarily be provided. But,
When the elastic body 15 is provided, the resilience can be maintained even after the years of use.

Further, the slit 14 may be formed in a substantially V-shaped cross-section in addition to the substantially U-shaped cross-section, and as shown in FIG. 5, the slit 14 is substantially extended across the left and right ends of the cushion pad 11 (seat cushion 1). The structure is not limited to being continuously provided, but a structure in which the cushion pad 11 is provided at both left and right ends as shown in FIG. 6 may be provided. Further, as the skin material 12, as shown in FIG. 7, the length of the end portion of the skin material 12 is set to reach the elastic body 15, and the inside of the upper end portion of the elastic body 15 mounted in the slit 14 is provided. It is also possible to wrap it up and carry out a locking process with the hook ring 16 or the like. In this case, as shown in FIG. 8, the through hole 15a for the hook ring 16 is formed in the upper elastic piece of the elastic body 15.
Is preferably provided. In this way, by performing the end treatment of the skin material 12 using the elastic body 15, the action of the elastic body 15 can be more effectively exhibited, and the skin material 12 can be partially omitted.

[0014]

As described above, in the vehicle seat device of the present invention, when the seat back is rotated to fall or stand up and a pressing force is applied to the rear end portion of the seat cushion, the pressing is performed. The pressure is absorbed by the slit, and the parts that are in contact with each other do not act strongly on each other due to this absorption, so the frictional force between the rear end part of the seat cushion and the lower end part of the seat back is small. Therefore, it is possible to prevent the contacting portion from wrinkling or rubbing, and to prevent the skin material from being worn away, so that the appearance can be improved. Also, when the seat back is turned over,
Since interference from the seat cushion side can be absorbed and reduced by the slit, the seat back can be used by turning it down to a more flattened state, and can also be used when carrying luggage. It is easy to do and the practicality is improved.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of a seat device according to the present invention partially broken away.

FIG. 2 is a partially cutaway schematic side view showing the seat device in a different state.

FIG. 3 is an enlarged sectional view of an essential part of the seat device.

FIG. 4 is an exploded perspective view of a main part of the seat device.

FIG. 5 is a perspective view for explaining a modification of the seat device.

FIG. 6 is a perspective view for explaining another modification of the seat device.

FIG. 7 is a main-portion cross-sectional view for explaining a modified example of the seat device.

FIG. 8 is a perspective view for explaining another modification of the seat device.

FIG. 9 is an external perspective view of a conventional seat device.

FIG. 10 is a side view for explaining a problem of the conventional seat device.

[Explanation of Codes] 1 Seat cushion 2 Seat back 3 Hinge 11 Cushion pad 12 Skin material 13 Lumbar support 14 Slit 15 Elastic body

Claims (3)

[Claims] 1. A vehicle seat device capable of inclining a seat back from a rear side of a seat cushion toward a front side thereof and folding the seat back on the seat cushion, wherein a rear end portion of the seat cushion is provided. A vehicle seat device comprising a slit for elastically deforming when pressed from the seat back side to absorb the pressing force. 2. The vehicle seat device according to claim 1, wherein an elastic body having a smaller elastic force than the pad material is arranged in the slit. 3. The vehicle seat device according to claim 1, wherein the slits are provided at both right and left ends of the seat cushion.