JPS643695Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a slide lock release mechanism for a vehicle seat.

[Prior Art] As shown in FIGS. 1 to 4, a conventional slide lock release mechanism has upper rails 2, 2 slidably attached to lower rails 1, 1 fixed to a vehicle body. These Atsupareru 2,
The two slides are locked by locking levers, for example locking bars 3,3. One end of the operating lever 4 is attached to one of the locking bars 3, 3, and this operating lever 4 is connected to the first locking bar 3.
The locking of the upper rail 2 to the lower rail 1 by the locking bar 3 is released by rotating the upper rail 2 about the fulcrum O in the direction of the arrow shown in FIGS. The other locking bar 3 is connected to the operating lever 4 by a release wire 5, so
By operating the operating lever 4, this other locking bar 3 can also be unlocked. The upper rail 2 is locked to the lower rail 1 by the locking bars 3, 3, as shown in FIG. This is done by inserting 3. As shown in FIG. 3, the locking bar 3 is always urged by a spring S in the direction of being inserted into the holes 6 and 7.

In the conventional vehicle seat slide lock release mechanism configured as described above, the cushion material 9 (underneath this is the cushion material 9) attached to the seat frame 8.
When a person is seated on the fourth
When a load is applied in the direction of arrow A in the figure, the S spring 10 and the seat portion of the cushion material 9 sink. When the seated state is traveling on a bumpy road, applying sudden braking, or in the event of a collision, the seat portion of the cushion material 9 sinks further, that is, the load in the direction of arrow A increases, and the release wire Hitting 5,
There were times when the release wire 5 was pushed down. When the release wire 5 is pushed down by the cushion material 9 (see the imaginary line in Figure 4), the locking bars 3, 3 are pulled out from the holes 6, 7 and 6, 7, and the upper rail 2 is unlocked from the lower rail 1. This leaves the second slide free. If the seat were to slide freely while the vehicle was running, it would be extremely dangerous. Such a phenomenon often occurs particularly in sports-type automobile seats with low hip points, and improvement thereof has been strongly desired from the viewpoint of safety.

〔the purpose〕

The present invention was made to improve these conventional drawbacks, and even when the seat is subject to gravity when the vehicle is running, and the load that causes the cushion material to sink downward is strong, the seat slide mechanism remains intact. It is an object of the present invention to provide a slide lock release mechanism for a vehicle seat that prevents the seat from being unlocked and improves safety.

〔composition〕

In order to achieve the above object, in the present invention, instead of the conventional release wire 5, a connecting plate with leaf spring characteristics is used, a hook is formed at the tip of the connecting plate, and this hook is connected to the other lock lever. The hook is inserted from below into a locking hole drilled in the locking bar 3 (for example, the locking bar 3), and when a load is applied to the connecting plate from above, the hook portion smoothly slips out of the locking hole downward.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described with reference to FIG. 5 and the following drawings.

A pair of lower rails 1, 1 are fixed to a vehicle body (not shown), upper rails 2, 2 are slidably attached to these lower rails 1, 1, and these upper rails 2, 2 are attached to lower rails 1, 1.
Lock levers 11 and 12 that lock against 1
will be established. The locking levers 11, 12 may be locking bars 3 as shown in FIG. 3, or may have other lockable structures.
A base end of an operating lever 13 is rotatably attached to one of the lock levers 11, 12. A support shaft 14 serving as a center of rotation is attached to an intermediate portion of the operating lever 13. This spindle 1
4 is attached to a bracket 15 fixed to the vehicle body or lower rail 1. A base end of a connecting plate 16 having leaf spring characteristics is rotatably attached closer to the tip of the operating lever 13 than the support shaft 14. A hook portion 17 is formed at the tip of this connecting plate 16, and this hook portion 17 is connected to the other lock lever 12.
It is inserted from below into a locking hole 18 bored in the. The relationship between the locking hole 18 and the hook portion 17 is as shown in FIG.
7 is in a state where the top is peeking out from the locking hole 18.

In the embodiment configured as described above, in order to slide the upper rails 2, 2, the operation lever 1 is pressed.
3 in the direction of the arrow in FIG. 5 about the support shaft 14, and pull out the lock lever 11 to release the lock on one of the upper rails 2.
Hook portion 17 is hooked into locking hole 18 and the other lock lever 12 is pulled out to unlock both upper rails 2, 2. After that, slide the seat to the desired position, and then press the operating lever 13.
By returning , the slide can be locked again. Up to this point, the operation is the same as the conventional operation. However, when a load as indicated by arrow A in FIG. 7 is applied, there is no fear that the slide lock will be released as in the conventional case (see FIG. 4). That is, when a force in the direction of arrow A is applied to the connecting plate 16, the connecting plate 16, which has a leaf spring characteristic, descends to the position shown in the imaginary line in FIG. By smoothly coming out of 17, the slide lock will not be released.

Incidentally, as shown in FIGS. 8a and 8b, the hook portion 17 of the connecting plate 16 or the vicinity thereof and the lock plate 13 may be connected by a spring member 19. By doing so, it becomes possible to reliably and smoothly return the pressed down connecting plate 16 to the correct position.

〔effect〕

As explained above, according to the present invention, there is a connecting plate with leaf spring characteristics, a hook portion formed at the tip of the connecting plate, and a locking hole drilled in the lock plate that allows the hook portion to move in and out. Due to the presence of the hole, the connecting plate receives the load from above, bends downward, and the hook portion slips out of the locking hole, so there is no risk of the seat sliding unintentionally releasing the lock, improving safety. Improve dramatically.

[Brief description of the drawings]

Figure 1 is a perspective view of a conventional slide lock mechanism.
Fig. 2 is a schematic plan view of Fig. 1, Fig. 3 is a detailed sectional view of the locking mechanism in Fig. 1, Fig. 4 is a sectional view when a load is applied to the seat, and Fig. 5 is a preferred embodiment of the present invention. FIG. 6 is a perspective view of essential parts, FIG. 7 is an explanatory view of operation, and FIGS. 8a and 8b are partial cross-sectional views showing a modified example in which connection is made by a spring member. 1...Lower rail, 2...Atsupa rail, 1
1, 12... Lock lever, 13... Operation lever, 14... Support shaft, 16... Connection plate, 17
...Hook part, 18...Latching hole.

Claims (1)

[Claims for Utility Model Registration] 1. Upper rails are slidably attached to a pair of lower rails fixed to the vehicle body, and lock levers are provided for locking these upper rails to the lower rails, and one of the lock levers has a base end of an operating lever. is rotatably mounted, and a support shaft that is the center of rotation is installed in the middle of this operating lever, and the base end of the connecting plate, which has leaf spring characteristics, is rotatable closer to the tip than the support shaft of the operating lever. Attachment: A hook is formed at the tip of the connecting plate, and a locking hole into which the hook is inserted from below is formed in the other lock lever, so that when a load from above is applied to the connecting plate, the connecting plate springs into a flat spring. A slide lock release mechanism for a vehicle seat, which is characterized in that its hook part is disengaged downward from a locking hole. 2. The slide lock release mechanism for a vehicle seat according to claim 1, wherein the hook portion of the connecting plate or the vicinity thereof and a lock plate having a locking hole are connected by a spring member. .