JP2567195Y2 - Automotive seat locking device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat locking device, and more particularly, to a vehicle having a seat cushion side latch which is removably engaged with a vehicle floor side striker and a seat cushion locked to the vehicle floor. The present invention relates to a seat locking device.

[0002]

2. Description of the Related Art As shown in FIG. 4, a seat back SB capable of leaning forward is mounted on a seat cushion SC, and a front portion of the seat cushion SC can be rotated on a vehicle floor F as shown in FIG. Attached to the seat cushion S
There is a vehicle in which the rear of C is locked to the vehicle floor F by the lock device 1 so as to be unlockable.

As shown in FIGS. 5 to 7, a lock device 1 has a U-shaped striker 2 fixed to a vehicle floor F, and a notch 3 fixed to a seat cushion SC and fitted with the striker 2 of the vehicle floor F. Base bracket 4 formed downward
And a latch 5 rotatably mounted on the base bracket 4 and rotatably engaged with the striker 2. The latch 5 locks the latch 5 so as to be unlockable according to the latched state of the latch 5. The latch 5 is locked to the striker 2 in order to lock the seat cushion SC to the vehicle floor F.

The latch 5 has a central shaft 5C substantially at the center thereof rotatably mounted on the base bracket 4, and a lower portion formed with a locking hole 5a into which the striker 2 is inserted horizontally.
A lock piece recess 5b for locking the lock piece 6 is formed in the upper part.

The lock piece 6 has a lower shaft 6b at the lower part thereof rotatably mounted on the base bracket 4, and a protrusion 6a which fits into the lock piece recess 5b of the latch 5 is formed on the upper part of the lock piece 6. ing.

[0006] A release lever 7 for unlocking the lock piece 6 from the latch 5 is attached to the lock piece 6. The release lever 7 has a lower portion attached to a lower shaft 6 b of the lock piece 6. 6, so that it can rotate with it,
The upper part 7a of the release lever 7 is pivotally mounted on the upper part of the lock piece 6.

[0007] A tension spring 8 is attached to the upper part 7a of the release lever 7 and the upper part of the latch 5 by tension, and the projection 6a of the lock piece 6 causes the protrusion of the lock piece 6 to be locked by the tension spring 8. The lock piece 6 is urged so as to be locked to the latch 5 by being fitted into the recess 5b.

[0008]

Therefore, when the anchor 9 of the seat belt is fixed to the seat cushion SC above the base bracket 4 as shown in FIG. 4, an upward load is applied to the latch 5 by the anchor 9. However, since the latch 5 is locked above the striker 2 by the lock piece 6 and the striker 2 is cantilevered by the latch 5 alone, the load due to the lock piece 6 is placed near the locking recess 5b of the latch 5. There was a risk that cracks 10 would form.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and an object of the present invention is to provide a locking device for a vehicle seat in which a latch is not cracked by a locking piece.

[0010]

In order to solve the above-mentioned problems, a locking device for a vehicle seat according to the present invention is provided with a latch support piece for supporting and locking a latch from below on a lock piece. .

The lock piece supports and locks the latch from below with a latch support piece, and supports the striker with both the lock piece and the latch.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described with reference to FIGS. A notch 12 into which the striker 2 of the vehicle floor F fits is provided substantially at the center of the plate-shaped lower base 11.
Are formed downward, and holes 1 for attachment to the seat cushion SC from above are formed in the lower base 11 on the left and right sides of the notch 12.
3. Latch mounting holes 14 and lock piece mounting holes 15 are provided symmetrically to the left and right, respectively.

Latch mounting holes 14 and lock piece mounting holes 15 are provided symmetrically on the left and right sides of the lower base 11, respectively. Can be mounted to facilitate the work of mounting a latch or the like.

A lock piece rod 16 is fixedly mounted in a lock mounting hole 15 on the left side (left side in FIG. 1) of the lower base 11.
, A lock piece cylinder 18 to which the lock piece 17 is fixed is rotatably mounted.

Therefore, the lock piece cylinder 18 and the lock piece 17
Can rotate along the surface of the lower base 11 around the lock piece rod 16.

The lock piece 17 has a plate shape, and a lower portion thereof is provided with a latch support piece 20 for supporting and locking the latch 19 from below.

The latch support piece 20 has a U-shape, and a release lever 22 for unlocking the lock piece 17 is fixedly attached to the U-shaped portion 21 of the latch support piece 20.

A latch rod 23 is fixedly mounted in the latch mounting hole 14 on the right side (the right side in FIG. 1) of the lower base 11, and a plate-shaped latch 19 is mounted on the latch rod 23. A fixed latch cylinder 24 is rotatably mounted.

Therefore, the latch 19 and the latch 24 can rotate around the latch rod 23 along the surface of the lower base 11.

A latch notch 25 for latching the striker 2 is formed in the latch 19 in the lateral direction, and a projection 26 supported by the latch support piece 20 of the lock piece 17 projects from the lower lock side. I have.

The latch 19 has a projection 26 whose locking piece 17
Is supported from below by the latch support piece 20 and is locked.

A coil spring 27 for urging the latch 19 into a locked state by the lock piece 17 is biased on the latch 19 and the lock piece 17. The coil spring 27 is wound around the lock piece cylinder 18, one end 27 a of the coil spring 27 engages with the release lever 22, and the other end 27 b of the coil spring 27
Are engaged with a long hole 28 formed in the upper part of the latch 19.

The latch 19, the lock piece 17 and the like are covered by the upper base 29.
And the lower base 11.

The upper base 29 is formed in a box shape having an opening on the lower base 11 side. Like the lower base 11, a latch mounting hole 14 and a lock piece mounting hole 15 are provided at a position overlapping the lower base 11.
A long slide hole 30 for regulating the release lever 22 is formed symmetrically left and right. Upper base 2
A lock piece rod 16 and a latch rod 23 are fixed to 9.

A rubber 31 for preventing rattling between the latch 19 and the striker 2 is attached to the upper part of the notch 12 of the upper base 29. Rubber 31
Is formed by bending the upper base 29 above the notch 12 to form a rubber mounting surface 32.
The rubber 31 is fixed to the rubber mounting surface 32.
And the striker 2 so as to be compressed.

[0026]

Next, the operation will be described. As shown in FIG.
Since the lock piece 17 is urged in the direction of the latch 19 by the coil spring 27, the latch support piece 20 of the lock piece 17 locks the projection 26 of the latch 19, and the latch 19 does not rotate, and Lock.

The lock piece 17 has its latch support piece 20 supporting the latch 19 from below.
Is supported by the lock piece 17 together with the latch 19, and the striker 2 is supported by both the latch 19 and the lock piece 17.

Therefore, even when an upward load is applied to the latch 19, the projection 26 of the latch 19 is moved downward so that the lock piece 17
The latch 19 is supported by the latch support piece 20 and the strength of the latch 19 is improved, so that the latch 19 is not cracked.

When the release lever 22 is slid in the direction of the arrow shown in the figure along the elongated slide hole 30 of the upper base 29, the lock piece 17 rotates and the lock state of the latch 19 by the lock piece 17 is released. The latch 19 also rotates in the direction of the arrow in the drawing due to the urging force, and the latching state of the latch 19 with the striker 2 is released.

[0030]

According to the present invention, since the latch piece is formed on the lock piece to support and lock the latch from below, the striker is supported by both the latch and the lock piece, and the latch is locked. Since the piece is reinforced by the piece, the strength of the latch is improved, and even if an upward load is applied to the latch, the latch is not cracked by the lock piece.

[Brief description of the drawings]

FIG. 1 is a side view of the device of the present invention.

FIG. 2 is an exploded perspective view of the device shown in FIG.

FIG. 3 is a perspective view of the device shown in FIG. 2 after assembly.

FIG. 4 is a side view of an automobile seat using the conventional device.

FIG. 5 is a side view showing a relationship between a lock piece and a latch of the device shown in FIG.

6 is a perspective view of the device shown in FIG.

7 is an exploded perspective view of the device shown in FIG.

[Explanation of symbols]

 17 Lock piece 19 Latch 20 Latch support piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A U-shaped striker fixed to the vehicle floor side, a base bracket fixed to a seat cushion and formed with a cutout downwardly fitted with the striker of the vehicle floor, and rotatably mounted on the base bracket. An automobile comprising a latch that is pivotally attached to the striker and is detachably engaged with the striker, and a lock piece that is pivotally attached to the base bracket so as to lock the latch so that the latch can be released by the latched state. A lock device for a vehicle seat, wherein a latch support piece for supporting and locking the latch from below is provided on the lock piece.