JPS6320592Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a folding seat support release device suitable for use in automobiles.

A conventional device will be explained with reference to FIG. 01 is a seat cushion provided on the vehicle floor panel 02 so as to be rotatable via a hinge (not shown); 03 is a seat back that is foldably mounted on the cushion 01; and 04 is a seat cushion 0.
1 is the first link that is attached to the shaft, 05 is the second link that is attached to the vehicle floor panel 02, and 06 is the first and second link.
This is a pin that connects both links 04 and 05.
With the above conventional structure, for example, when you want to widen the trunk space behind the seat device and load more luggage, first fold the seat bag 03 into the seat cushion 01, then rotate the seat cushion 01, and 1, 2nd link 0
4 and 05, the seat cushion and seat back are raised at a predetermined tilt angle as shown in FIG. 1 and maintained in that state. However, when reversely folding down the seat cushion 01 from this state and returning the seat device to the normal use state, manually move the links 04 and 05 near the hinge pin 06 by the arrow A.
Since the return operation was performed by directly pushing in the direction and bending the links 04 and 05, there was a problem that fingers could be pinched between the first link 04 and the second link 05 and be damaged.

The present invention has been devised in view of the above-mentioned conventional device, and includes a seat cushion that is pivoted to be rotatably displaced relative to the vehicle floor, and a first link that has one end pivoted to the seat cushion. The seat cushion is provided with a collapsible link mechanism in which the other end and the other end of a second link having one end pivoted on the vehicle body floor side are connected to each other by a pin, and the seat cushion is connected to the seat cushion by the first and second links. In a device that can maintain the vehicle body in a raised position relative to the floor, a release lever having an engaging portion that can be engaged with the first link is provided on one end side of the first link, so that the release lever can be maintained at any time. A spring member is interposed between the release lever and the seat cushion side to rotate and bias the engaging part of the lever in a direction in which it is not engaged with the first link, and the first and second links are used to remove the spring member from the vehicle body floor. When restoring the raised seat cushion to the normal use state, the release lever is rotated against the spring force of the spring member to release the first link via the engaging portion of the release lever. Press
The gist of the invention is a folding seat support device characterized in that the first link and the second link are configured to bend and displace.According to the present invention, when returning the seat to its normal use state, Unlike the structure in which the first link and the second link are bent and displaced directly by hand, the engagement part of the release lever attached to the first link is released so as to engage with the first link. Since the operation can be performed easily by simply operating the lever, it has the effect of providing safe operability without causing any damage to the operator.

Hereinafter, the present invention will be described in detail with reference to the embodiment shown in FIGS. 2 and 3.
a slide rail device fixedly fixed to the seat device for adjusting the longitudinal position of a seat device to be described later; 3 a seat device consisting of a seat cushion portion 4 and a seat back portion 5 pivotally mounted on the cushion portion 4; 6 a seat device comprised of a seat cushion portion 4; The provided bracket 7 is a link mechanism consisting of a first link 8 and a second link 9, one end of the first link 8 is pivotally connected to the bracket 6, and one end of the second link 9 is connected to the slide rail device 1.
The first and second
The other ends of both links 8 and 9 are connected to each other by hinge pins 11.
are connected via. Reference numeral 18 denotes a stopper portion connected to the second link 9, which engages with the first link 8 when the seat device 7 is raised, as shown particularly in FIG. 11 is located beyond the point on the line formed by connecting the pivot points at both ends of the first and second links 8 and 9, and thus the seat device is held in a stable state via the link mechanism 7. It is possible to maintain tilting displacement. 12 is a release lever coaxially connected to the pivot pin 13 of the first link 8; 14 is an engagement pawl formed by bending the lever; 15 is an operating section;
Reference numeral 6 denotes a rotation prevention portion, and reference numeral 17 denotes a return spring stretched between the bracket 6 and the release lever 12, which keeps the lever 1 at all times.
2 is urged to rotate in the counterclockwise direction, but the amount of rotation is regulated by the collision of the rotation prevention portion 16 with the bracket 6. And at this time,
The engaging pawl 14 is designed to avoid contact with the first link 8 as much as possible, thereby preventing rattling noise from occurring due to vibrations when the vehicle is running.

Next, the operation of the embodiment having the above configuration will be explained. From the normal usage state in which the passenger is seated on the seat device 3, as shown in FIGS. 2 and 3, the seat device 3 is raised to widen the cargo loading space. In this case, the seat cushion part 4 with the seat back part 5 folded up is lifted counterclockwise around a hinge (not shown). When a predetermined tilt angle is reached, the stopper portion 18 of the second link 9 is moved to the first link 8.
are in contact with each other, and the seat device 3 is connected to the first and second links 8,
It is stably supported by the link mechanism 7 consisting of 9. Conversely, when returning the seat device to the normal operating state, when the release lever 12 is forcibly rotated around the hinge pin 13 against the spring force of the return spring 17, the engagement pawl 14 on the lower side of the lever 12 is moved to the first position. Press the link 8 in the direction of arrow B. Therefore, a clockwise rotational moment is generated in the first link 8 about the hinge pin 13, and a counterclockwise rotational moment is also generated in the second link 9 via the hinge pin 11. As a result, the first link and The two links are bent and displaced in a dogleg shape with the pin 11 as the boundary. In this way, the seat device 3 is returned to its original state.

According to the device of this embodiment, hold the operating portion 15 of the release lever 12 and rotate the lever 1 around the hinge pin 13.
2 is configured to be rotated, so that the passenger's fingers are not pinched between the first link and the second link as in the conventional case, making it possible to obtain a safe device. Also, the operating direction of the release lever is set to the seat position. Since it is in the same direction as the return direction of the device 3, it has the effect that the release operation force can be reduced accordingly.

In the above embodiment, the release lever 12 is connected to the hinge pin 1.
Although the second link 9 is installed coaxially with the first link 8, it can also be installed on the first link 8, and although the second link 9 is installed on the upper rail 10, it may also be installed on the vehicle body floor panel 2. , furthermore, the seat back part 5
Although the structure is reclining, it is not limited to this, and it goes without saying that a structure that is integrally fixed with the seat cushion portion 4 also falls within the scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a conventional device, FIG. 2 is a perspective view similar to FIG. 1 of an embodiment of the present invention, and FIG. 3 is an enlarged external perspective view of the main part of the same embodiment. 4; seat cushion part, 8; first link,
9; second link; 12; release lever; 14; locking claw; 17; return spring.

Claims (1)

[Scope of utility model registration request] a seat cushion mounted on a shaft for rotational displacement with respect to the vehicle body floor; the other end of a first link having one end pivoted on the seat cushion; and a second link having one end pivoted on the vehicle body floor side. The seat cushion is provided with a foldable link mechanism whose other ends are connected to each other by a pin, and the seat cushion can be maintained in a raised state with respect to the vehicle body floor by the first and second links, A release lever having an engaging part that can be engaged with the first link is provided on one end of the first link, and the engaging part of the release lever is always rotated in a direction that does not engage the first link. A biasing spring member is interposed between the release lever and the seat cushion side, and when the seat cushion raised from the vehicle body floor by the first and second links is returned to a normal use state, By rotating the release lever against the spring force of the spring member, the first link is pressed through the engaging portion of the release lever, and the first link and the second link are bent and displaced. A support release device for a folding seat, characterized in that it is configured as follows.