JPS6342847Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a reclining device for an automobile seat.

Conventionally, as shown in FIG. 1, the above-mentioned reclining device has a plurality of engagement grooves 4, . 4 is fixed, and a striker 7 swingably pivoted to the frame 6 of the seat bag 3 is attached to one of the engagement grooves 4, . A system has been proposed in which the tilting position of the seat bag 3 is adjusted by engaging and disengaging it by push and pull operations (for example, Japanese Utility Model Publication No. 171402/1983).

However, when the manual operation knob 8 is pulled up to disengage the striker 7 from the engagement groove 4 and the seat bag 3 is folded forward, when the seat bag 3 is to be tilted back again, the manual operation knob 8 must be pulled up again. If this was not done, the striker 7 would abut against the sector member 5 and would be unable to engage, and there was a risk that the striker 7 and the sector member 5 would be damaged by the abutting shock.

This invention was made in view of the above-mentioned conventional problems, and is pivotally attached to the seat back frame and connected to an operating member for engaging and disengaging the striker, and the striker is engaged by pulling up the manual operating member. a release member to be removed from the groove; a release member pivotally connected to the seat back frame; and an urging member to urge the release member to come into contact with an edge of the sector member opposite to an edge where the engagement groove is formed. The release member has a holding part that holds the release member itself in the unlocked position by coming into contact with the edge of the sector member when the seatback is folded forward, and also has a holding part that holds the release member itself in the unlocked position when the seatback is folded forward. The striker is provided with a lock portion that locks the release member in the release position when the holding portion is removed from the edge, so that the striker can self-lock when the seat bag is tilted backwards.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the frame 11 of the seat bag 10 has a structure in which a portion corresponding to a sector member 12 fixed to the vehicle body is connected with a lock frame 13, and one side wall 13a of the lock frame 13 is connected to the sector member 12 fixed to the vehicle body.
A bearing boss 16 that supports the shaft portion 15a on one side of the roughly U-shaped striker 15 is fitted into the shaft hole 14 bored in the shaft hole 14, and the shaft portion 15a on the other side of the striker 15 is fitted.
5b includes a wire spring 17 and the other side shaft portion 15.
The bearing boss 18 is fitted into the base hole 20 of the release plate 19 and the shaft hole 22 of the lock plate 21, and the lock plate 21 is fitted into the lock frame 13. It is integrally fixed to the other side wall 13b with screws 23, 23.

Therefore, the striker 15
3 and a lock plate 21, one end is latched onto a striker auxiliary piece 24 integrated with the striker 15, and the other end is attached to the bearing boss 1.
A wire spring 17 hooked on the sector member 12 is biased in the direction of engagement with the engagement grooves 12a, . . . , 12a of the sector member 12.

The release plate 19 is swingably supported by a bearing boss 18, and the boss 2 is fixed with screws 25.
6 is fitted into the elongated hole 27 of the lock plate 21 to regulate the swing angle.

An inwardly bent release part 28 is provided at the lower part of the release plate 19, which comes into contact with the lower edge 12b of the sector member 12 and prevents the sector member 12 from swinging when the seat bag 10 is tilted backward.

Furthermore, a self-locking portion 38 is provided on the side of the release plate 19 to lock a bent portion 36 of a stopper plate 29, which will be described later, at the release position.

On the other hand, a boss 31 that fits into the base hole 30 of the stopper plate (removal member) 29 is fixed to the upper part of the other side wall 13b of the lock frame 13 with a screw 32, so that the stopper plate 29 is swingably supported. At the same time, the lower end bent portion 34a of the rod 34, which is linked to a manual operation knob (not shown), is engaged with the hole 33a of the outer bent portion 33 of the stopper plate 29.

A coil spring 35 is stretched between the outer bent portion 33 of the stopper plate 29 and the inner bent release portion 28 of the release plate 19, and both plates 2
9 and 19 are urged toward each other relatively.

At the bottom of the stopper plate 29, below the striker auxiliary piece 24, that is, the striker 15
A bent part 36 facing the engagement side of the striker 15, and a bent part 37 facing above the striker auxiliary piece 24, that is, facing the detachment side of the striker 15 are provided.

If the reclining device is configured as described above, when the manual operation knob is released, the rod 34 will be in the lowered position, and the striker 1
5 is engaged with one of the engagement grooves 12a of the sector member 12, the stopper plate 29 is rotated to the left by the coil spring 35 and is stopped by the lower bent portion 34a of the rod 34, and the striker auxiliary piece 24
Since the bent portion 36 is located below and the bent portion 37 is opposed to the upper portion, even if the striker 15 attempts to swing in the detachment direction due to a collision with a car, etc., it will be stopped by the bent portion 37, resulting in an unexpected accident. There is no fear that Japan will leave.

The release plate 19 is rotated to the left by the coil spring 35, and the inwardly bent release portion 28 is rotated to the left by the coil spring 35.
The lower edge 12b of 2 is held against the lower edge 12b.

Next, when the manual operation knob is pulled up to raise the rod 34 as shown in FIG. The striker 15 is swung in the detachment direction.

In this state, when the tilting angle of the seat bag 10 is adjusted and the hand is released from the manual operation knob, the stopper plate 21 is rotated to the left by the coil spring 35, and the striker 15 is engaged with the corresponding engagement groove 12a by the wire spring 17. At the same time, the adjustment of the tilting position is completed.

As shown in FIG.
8 is removed from the lower edge 12b of the sector member 12 and rotated to the left by the coil spring 35, and the self-locking portion 38
comes to lock the bent portion 37 of the stopper plate 29, and the striker 15 is self-locked to the detached position.

Thereafter, when the seat bag 10 is tilted backward, the inwardly bent release part 28 of the release plate 19 is abutted against the lower edge 12b of the sector member 12 and rotated to the left, so that the self-locking part 38 closes the bent part 37 of the stopper plate 29. The lock is released, the striker 15 is swung in the engagement direction by the wire spring 17, and the engagement groove 12a of the sector member 12 is rotated.
becomes able to engage with

As is clear from the above explanation, this invention provides a release member that locks the release member in the release position at the lock portion when the seatback is folded forward during the pull-up operation of the hand-operated member. Since the holding part of the release member is brought into contact with the edge of the sector member to release the lock, the striker is self-locked into the engagement groove, ensuring reliable engagement of the striker and the striker. There is no fear of damaging the sector member.

[Brief explanation of the drawing]

Figure 1 is a side view of a conventional reclining device.
FIG. 2 is an exploded perspective view of the reclining device according to this invention, and FIGS. 3, 4, and 5 are operational side views of the reclining device according to this invention. 10... Seat bag, 11... Frame, 1
2...Sector member, 12a...Engagement groove, 13...
...Lock frame, 15...Striker, 17...
...Wire spring, 19...Release plate, 2
DESCRIPTION OF SYMBOLS 1... Lock plate, 24... Striker auxiliary piece, 28... Inward bending release part, 29... Stopper plate (separation member), 34... Rod, 3
5...Coil spring, 36...Bending portion, 37...
Bending portion, 38...Self-locking portion.

Claims (1)

[Claims for Utility Model Registration] Adjusting the tilting position of the seat bag by engaging a striker swingably pivoted to the frame of the seat bag with one of a plurality of engagement grooves of a sector member fixed to the vehicle body. A reclining device that is pivotally connected to the seat back frame, and
a detachment member connected to the striker engagement/disengagement operation member and for detaching the striker from the engagement groove by pulling up the manual operation member; a release member pivotally attached to the seatback frame; and a release member for engaging the sector member. and a biasing member that biases the release member so as to come into contact with an edge opposite to the forming edge of the matching groove, and the release member is brought into contact with the edge of the sector member when the seat back is tilted backward. The release member has a holding part that holds the release member itself in the unlocked position, and a locking part that locks the release member in the release position when the holding part comes off from the edge of the sector member when the seat bag is folded forward. Features: Automobile seat reclining device.