JPS6319227Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement to 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 attached to the frame 6 of the seat bag 3 is inserted into one of the engagement grooves 4, . A system has been proposed in which the inclination position of the seat bag 3 is adjusted by releasing and disengaging the seat bag (for example, Japanese Utility Model Application No. 54-171402).

However, when the load of the occupant acts on the seat back 3 and the sector member 5 swings downward via the striker 7, the striker 7
This was very dangerous because there was a high risk of it unexpectedly coming off from the engagement groove 4.

This idea was made in view of the above-mentioned conventional problems, and is fixed to the frame of the seat bag.
A lock plate is provided that is arranged approximately parallel to the sector member, and a stopper portion located below the tip side of the sector member is integrally formed on this lock plate, and the stopper portion prevents the sector member from swinging downward. This prevents the striker from accidentally separating from the engagement groove.

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

As shown in FIGS. 2 and 3, the frame 11 of the seat bag 10 is attached to the vehicle body 1 with bolts 29, 2.
The lock frame 13 has a structure in which a portion corresponding to the sector member 12 fixed at the lock frame 13 is connected to the lock frame 13, and a striker 15 formed in a roughly U-shape from a wire rod is installed in a shaft hole 14 bored in one side wall 13a of the lock frame 13. A bearing boss 16 that rotatably supports the shaft portion 15a on one side is fitted, and a torsion coil spring 17 and a torsion coil spring 17 rotatably support the shaft portion 15b on the other side of the striker 15. bearing boss 1
A lock plate 20 is fitted to the bearing boss 18, and the lock plate 20 is connected to the other side wall 13b of the lock frame 13 by screws 23, 23.
Fix it integrally. As a result, the lock plate 20 is integrated with the lock frame 13.

Therefore, the striker 15
A torsion coil spring 17 is swingably supported at both ends by the striker 3 and the lock plate 20, and has one end hooked to a striker auxiliary piece 24 integrated with the striker 15 and the other end hooked to the lock plate 20. Accordingly, the engagement groove 12 of the sector member 12
a,..., 12a in the direction of engagement.

The striker auxiliary piece 24 is provided with a hole 27 through which a rod 25 interlocked with a manual knob (not shown) is inserted, and a bent portion 26 of the rod 25 engages with the striker auxiliary piece 24.

The sector member 12 is formed by bending a metal plate into a roughly L-shape, and its base 28 is connected to the vehicle body.
Fix it with bolt 29.

A stopper portion 37 is integrally formed on the lower edge of the lock plate 20 and is bent so as to approach the lower end side of the sector member 12 with a slight gap, thereby preventing the sector member 12 from escaping downward. It is designed to prevent it.

If the reclining device is configured as described above, the pulling operation of the hand-operated knob is released and the rod 25 is in the lowered position, and the striker 15 is moved to the sector member 12.
When the lock plate 20 is engaged with one of the engagement grooves 12a, the stopper portion 37 of the lock plate 20 is located close to the lower end of the sector member 12, so that a load acts on the seat back 10 and the striker 15 Even if the sector member 12 is pushed down and swung downward, the sector member 12 will be immediately stopped by the stopper portion 37, and the striker 15 will be prevented from accidentally slipping out of the engagement groove 12a of the sector member 12. There will be no chance of leaving.

On the other hand, when the hand-operated knob is pulled up to raise the rod 25, the lower end bent portion 26 is inserted into the striker auxiliary piece 24.
The striker 15 is smoothly swung in the direction of disengagement from the engagement groove 12a of the sector member 12, and when the seat back 10 is swung forward while the manual knob is pulled up, the lock plate 20 The stopper portion 37 of the seat bag 10 can be smoothly swung forward without touching the sector member 12, and when the manual operation knob is pulled up to move the seat bag 10 rearward, any striker 15 can strike the sector member 12. By releasing the pull-up operation of the manual knob at a point corresponding to the engagement groove 12a, the seat bag 10 can be locked in a rearward tilted position from the above-mentioned position, and the seat back 10 can be adjusted backward. The inclination of the seat bag 10 can also be adjusted to a tilted position.

As is clear from the above description, this invention includes a lock plate that is fixed to the frame of the seat bag and is arranged approximately parallel to the sector member, and a stopper portion located below the tip side of the sector member on this lock plate. Since it is integrally formed, it is possible to prevent the striker from accidentally separating from the engagement groove due to downward swinging of the sector member, which is advantageous in terms of safety measures.

Furthermore, since there is no need to excessively reinforce the sector members and the vehicle body, weight and manufacturing costs can be reduced.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional reclining device.
FIG. 2 is a side view of the reclining device according to this invention, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 10... Seat bag, 11... Frame, 1
2...Sector member, 12a...Engagement groove, 13...
...Lock frame, 15...Striker, 16...
... Lock plate, 24 ... Striker auxiliary piece,
37...stopper section.

Claims (1)

[Claim for Utility Model Registration] A substantially U-shaped wire rod is formed in one of the plurality of engagement grooves of a plate-shaped sector member fixed to the vehicle body, and the shaft portions at both ends are swung to the frame of the seat bag. In a reclining device that adjusts the tilting position of a seat bag by engaging a striker pivotally connected thereto, a lock plate is fixed to the frame of the seat bag and arranged substantially parallel to the sector member, and the lock plate has a sector member. 1. A reclining device for an automobile seat, characterized in that a stopper portion located at the lower end of the member is integrally formed.