JPS5957038A - Side support structure of g-sensing automatic lock for seat cushion - Google Patents

Abstract

PURPOSE:To prevent a captioned structure from being an obstacle for passengers to get on and off by providing side supports to sense the inertia at cornering for locking only when the inertia is generated. CONSTITUTION:Side supports 3R and 3L are fixed on a seat cushion 1 via a brackets 7 and 8. A frame shaft 5 of the side support is supported by brackets 7 and 8, and one end of a torsion bar 6 is fixed on it. On a penetrated projection part of the frame shaft 5, a disk 10 with engaging teeth 9 are fixed, and inside the disk 10, a pendulum 12 fixed on the bracket 7 to be oscillated with an internal tooth pawl 11 to be engaged with the engaging teeth 9 of the disk 10 is pivoted. Usually, the engaging teeth 9 is kept disengaged with the internal tooth pawl 11 by a spring 13, and engaged only when the inertia is given.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a G-sensing self-locking side support structure in a vehicle seat cushion.

A seat similar to a packet type in a vehicle is provided with side supports on both sides of the seat cushion in order to secure the occupant's hold when the vehicle is cornering. Since this side support has conventionally been fixed to the seat cushion, there has been a problem in that it interferes with the thighs of the seated person when sitting down or standing up.

The present invention has been made in order to eliminate the drawbacks of the above-mentioned conventional ones.The present invention supports the side support with a support spring so as to be tiltable to the outside of the seat cushion, and also detects the G in the lateral direction of the vehicle that occurs during cornering. To provide a night support structure with a front part that automatically locks a side support to a seat cushion.

The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 shows a perspective view of a vehicle seat to which a side support (3R13L) of the present invention is attached. The side support is attached to a seat cushion 1 via a bracket 7.8, and 2 is a seat back.

FIG. 2 is a perspective view of the side support (3R) shown in FIG. 1 from the inside of the seat, in which 4 is the side support body, 5 is the frame shaft of the side support extending in the front-rear direction, 6 is a torsion bar as a support spring, and 7 is a perspective view of the side support (3R) shown in FIG. is seat cushion 1
A rear bracket 8 is attached to the middle frame of the frame, and the frame axis 5 is pivotally supported by the front and rear brackets 8.7, respectively, and one end of the torsion bar 6 is attached to the frame axis 5. The other end is fixed to the rear bracket 7. A penetrating protrusion of the frame shaft 5 which is pivotally supported by the rear bracket ((indicates a disk 10 having interlocking teeth 9 is attached to the bracket) 70 located closer to the seat center (inner side) Internally toothed claw 1 that is movable and can mesh with the meshing teeth of the disc
A pendulum 12 is pivotally mounted, and the pendulum 12 is connected by a spring 13.13 to the interlocking tooth 9 and the internally toothed pawl 1 at all times (specifically, when no lateral G is applied to the vehicle).
1 is held at a neutral position where it is not engaged. Note that the structure of the side support 3L is symmetrical to that of the side support 3R.

In the side support structure with the above configuration, when an occupant sits on or stands up from the seat when the vehicle is stopped or traveling straight, where no lateral acceleration G is applied to the vehicle, conventionally, the thighs of the occupant The side supports (3L) that are supposed to interfere with the torsion bar 6 tilt outward against the elasticity of the torsion bar 6, so there is no unpleasant interference like in the past. The side support will automatically return to normal.

When the vehicle corners and acceleration G is applied in the lateral direction, the pendulum 12 in the side support on the acceleration direction side
senses G and swings outward against the control of the spring 3, and its internal toothed pawl 11 engages with the meshing teeth 9 of the disc to prevent rotation of the frame shaft 5 and lock the side support. . Since the acceleration G mentioned above simultaneously presses the locked side support side of the seated person, the automatic locking of the side support mentioned above greatly contributes to maintaining the posture of the seated person. It has an excellent G-sensing automatic locking side support structure that functions as a fixed side support when necessary.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a vehicle seat, and FIG. 2 is a perspective view of the right side support shown in FIG. 1 from the inside. 1: Seat cushion 5: Frame shaft 7.8 Nibble bracket 9: Meshing teeth 10: Disc 11
: Internal tooth shaped claw 12: Pendulum

Claims (1)

[Claims] The front and back frame axes of the side supports provided on both sides of the rhinoceros seat cushion are pivoted by corresponding brackets attached to the front and rear parts of the seat cushion 0 frame, and the parts that are close to the pivot brackets on one of the sides. A pendulum in which a disc having meshing teeth is attached to the frame shaft, and an internally toothed claw capable of meshing with the meshing teeth of the disc is provided on one of the pivot brackets located closer to the center of the seat than the other disc. is pivoted so that it can swing from side to side, and when lateral G is applied to the vehicle and the pendulum engages with the disc, the side support is automatically locked to the seat cushion and the lateral G is eliminated. The G-sensing automatic lock type side support structure for a seat cushion, wherein the pendulum automatically disengages from the disc and returns to a neutral position to release the lock of the side support.