JPH082301A - Seat device for vehicle - Google Patents

Abstract

PURPOSE:To provide a seat device for vehicle capable of reducing the influence upon the occupant due to the acceleration in the longitudinal direction of the vehicle at the time of collision and reducing the change of an eye point caused by the difference of the sitting heights of the occupants. CONSTITUTION:A seat 1 is firmly fixed to the slide rail assembly 9 arranged capable of sliding the seat 1 forward/backward, through a spacer 19 having an inclination to increase thickness toward the front, and the slide rail assembly 9 is firmly fixed to a car body floor 23 through a member connecting an upper frame 8 which turns the seat 1 to a lower frame 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat device.

[0002]

2. Description of the Related Art A conventional vehicle seat device is shown in FIGS.
There is one shown in FIG. FIG. 4 shows a side view of the structure of a seat in a conventional vehicle seat device. The seat 1 is fixed to the upper slide rail 10, and the lock lever 24
When you operate to unlock, the upper slide rail 1
0 and the seat 1 are integrally engaged with each other so as to be slidable in the lateral direction in the drawing. The upper slide rail 10 has a ball 22
It is slidably engaged with the lower slide rail 25 via.

3 and 7 are views showing the slide rail assembly 9. As shown in FIG. A fixture 14 that rotatably supports a lock lever 24 is fixed to the outer surface of the upper slide rail 10. Further, on the outer bottom surface of the lower slide rail 25, a plurality of grooves 16 are provided on the end surface of the stopper member 1.
1 is fixed. When the rotational force of the lock lever 24 is transmitted to the lock pin 15 via the lock link 18 against the biasing force of the spring 17, the lock pin 15 and the groove 1
It is formed so that the engagement of 6 is released. When the rotational force of the lock lever 24 is removed, the lock pin 15 is engaged with the groove 16 at an appropriate position by the urging force of the spring 17 so that the sliding between the upper slide rail 10 and the lower slide rail 25 is locked. ing. The slide rail assembly 9 is composed of the above-mentioned members.

5 and 6 are views showing a mounting structure of a vehicle seat device. The lower slide rail 25 and the stopper member 11 are integrally fixed to one frame member 20 and the other frame member 21 forming both sides of the upper frame 8, respectively.

The upper frame 8 is joined to the lower frame 5 by a fastener 7 in a rotatable and eccentric position. On the lower frame 5, a plurality of rollers 12 are arranged in an arc shape with the fastener 7 as the center of rotation. The upper frame 8 and the lower frame 5 rotate about the fastener 7 as a rotation center via the roller 12. The release lever 6 is rotated, the lock pin that locks the rotation of the upper frame 8 and the lower frame 5 is released, the upper frame 8 is relatively rotated with respect to the lower frame 5, and the angle is appropriately rotated. It is formed so as to come into contact with the stopper at the time and stop the rotation. The lower frame 5 is fixed in parallel with the vehicle body floor 23 by using a pair of left and right front leg members 3 and rear leg members 4.

[0006]

In the above conventional vehicle seat device, the lower frame 5, the upper frame 8 and the seat 1 are arranged such that the fixing surfaces thereof are substantially parallel to the main surface of the vehicle body floor 23. I am doing it. This is to prevent the seat 1 from tilting when the seat 1 is rotated (a rotation angle of about 90 degrees is a generally required rotation angle) and pulled out from the door of the vehicle body.

However, if the seat 1 is disposed in parallel with the vehicle body floor 23, the longitudinal acceleration at the time of a vehicle collision such as a traffic accident cannot be attenuated, so that the safety of passengers cannot be expected to be improved. In addition, there is a problem that the eye point changes greatly due to the seat height of the occupant.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat device that attenuates longitudinal acceleration at the time of a vehicle collision and reduces changes in the occupant's eye point due to the seat height of the occupant. To do.

[0008]

A lower frame fixed to a vehicle body floor, and an upper frame rotatably coupled to each other via a fastener eccentrically provided on the lower frame,
A release lever for preventing rotation of the upper frame and the lower frame, a slide rail assembly in which spacers with appropriate inclination angles are fixed to the upper surfaces of both side frames of the upper frame, and lower slide rails are fixed to the upper surfaces of the spacers. , A seat fixed to the upper slide rail of the slide rail assembly. The spacer may be divided into a front portion and a rear portion of the slide rail and fixed to upper surfaces of both sides of the upper frame. Further, the inclination angle of the appropriate angle is preferably 4 degrees to 10 degrees.

[0009]

[Operation] Since the lower slide rails of the slide rail assembly are fixed to the upper surfaces of both side frames of the upper frame through spacers having an appropriate inclination angle, and the seat is fixed to the upper slide rails of the slide rail assembly, the release lever is used. When the seat is rotated after unlocking, the seat rotates with the upper frame at the inclination angle given by the spacer, so that the occupant keeps a low waist and high knee position where the inclination angle brings. Rotate while standing.

[0010]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of a seat according to the present invention. Lower frame 5 fixed to the vehicle body interior floor 23
An upper frame 8 rotatably coupled to the lower frame 5 via a fastener 7 provided eccentrically, and slide rail assemblies 9 fixed to both side frames of the upper frame 8 are provided. A spacer 19 is interposed between the slide rail assembly 9 and the seat 1, and the upper slide rail 10 slides integrally with the seat 1. When the lock lever 24 is rotated to release the connection between the groove 16 and the lock pin 15, the upper frame 8 slides with the roller 12 of the lower frame 5 as a guide, and the rotation of the lock lever 24 is stopped and returned to its original position. It is locked in position and the sliding of seat 1 stops. Spacer 19
Is set to have a thickness on the front side of the seat 1, a thickness on the rear side for a while, and a height on the front side of the seat 1.

FIG. 2 is a sectional view of the slide rail assembly and the spacer assembly according to the present invention. Upper slide rail 1
A fixing device for supporting the lock link 18 having the lock pin 15 so as to rotate about the axis of the lock link 18 is fixed to the outer surface of 0. When the lock lever 24 is rotated, the lock link 18 is rotated to rotate the lock pin 15 to release the coupling between the groove 16 and the lock pin 15. Further, a plate-shaped stopper member 11 is fixed to the outer bottom surface of the lower slide rail 25 that slidably engages with the upper slide rail 10 via the ball 22, and a spacer 19 is fixed to the outer bottom surface of the stopper member 11. And is integrally formed.

[0012]

As described above, according to the present invention,
Since the seat and the slide rail are fixed to each other via a spacer having an inclination angle, when the seat is rotated, the seat does not tilt to the left and right, which makes it difficult for the occupant to sit down. The preset angle allows the occupant to lower his waist when sitting and to sit with his knees raised so that the effect of longitudinal acceleration during a vehicle collision on the occupant can be reduced and the seat height can be lowered. There is an excellent effect that can be expected to reduce the setting range of the occupant's eye point due to the difference.

[Brief description of drawings]

FIG. 1 is a side view of a seat according to the present invention.

FIG. 2 is a sectional view of a spacer assembly according to the present invention.

FIG. 3 is an assembly diagram of a slide rail.

FIG. 4 is a side view of a conventional seat.

FIG. 5 is a conventional seat operation diagram.

FIG. 6 is a configuration diagram of a conventional upper frame and lower frame.

FIG. 7 is a detailed view of a stopper member.

[Explanation of symbols]

 1 Seat 5 Lower Frame 8 Upper Frame 9 Slide Rail Assembly 10 Upper Slide Rail 19 Spacer 23 Body Floor 25 Lower Slide Rail

Claims (3)

[Claims] 1. A lower frame fixed to a vehicle body floor, an upper frame rotatably connected to a lower frame via a fastener eccentrically provided on the lower frame, and rotation of the upper frame and the lower frame prevented. The release lever and a slide rail assembly in which a spacer with an appropriate angle of inclination is fixed to the upper surfaces of both side frames of the upper frame, and a lower slide rail is fixed to the upper surface of the spacer, and the upper slide rail of the slide rail assembly is fixed. A seat device for a vehicle, characterized in that the seat device is composed of a closed seat. 2. The vehicle seat apparatus according to claim 1, wherein the spacer is divided into a front portion and a rear portion of the slide rail and fixed to both upper surfaces of the upper frame. 3. The vehicle seat device according to claim 1, wherein the inclination angle of the appropriate angle is 4 degrees to 10 degrees.