Device for unlocking seat of vehicle

Patent metadata

Field	Value
Publication number	US-12030408-B2
Application number	US-202217969183-A
Country	US
Kind code	B2
Filing date	Oct 19, 2022
Priority date	Mar 15, 2022
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

A device for unlocking a seat for a vehicle includes a base frame mounted on a movable rail of a seat rail, a seat frame mounted on the base frame to be able to tilt, a lock pin fixed to a side of the seat frame, a support bracket mounted on a floor panel, and a lock plate rotatably mounted on a side of the base frame, and configured to be locked to the lock pin when coming in contact with the support bracket and to be unlocked from the lock pin when coming apart from the support bracket, whereby it is possible to automatically unlock a seat when it is required to tilt the seat through a walk-in mechanism to secure a passage for a passenger to get in/out of a vehicle.

First claim

What is claimed is:

1. An apparatus for unlocking a seat, the apparatus comprising:
a base frame mounted on a movable rail of a seat rail;
a seat frame mounted on the base frame and tiltable;
a lock pin fixed to a side of the seat frame;
a support bracket mounted on a floor panel;
a lock plate rotatably mounted on a side of the base frame, and configured to be locked to the lock pin when the lock plate comes in contact with the support bracket and to be unlocked from the lock pin when the lock plate comes apart from the support bracket; and
a guide plate mounted on the seat frame and formed to be bent to guide a hook portion of the lock plate to the lock pin between the seat frame and the guide plate.

2. The apparatus of claim 1 , wherein the lock plate includes:
a hook portion formed at a first portion of the lock plate and configured to be detachably coupled to the lock pin; and
a lever portion formed at a second portion of the lock plate and configured to selectively come in contact with the support bracket.

3. The apparatus of claim 2 , wherein the hook portion and the lever portion are aligned in opposite direction to each other.

4. The apparatus of claim 2 , further includes a guide plate mounted on the seat frame and formed to be bent to guide the hook portion of the lock plate to the lock pin between the seat frame and the guide plate.

5. The apparatus of claim 2 , further including a horizontal guide surface formed on a bottom portion of the lever portion and configured for horizontal contact with the support bracket.

6. The apparatus of claim 2 , further including a lock pin insertion locking groove formed at the hook portion to be open rearward, wherein the lock pin is selectively accommodated in the lock pin insertion locking groove.

7. The apparatus of claim 1 , further including:
a rotation support hole formed at a middle portion of the lock plate; and
a rotation support shaft inserted into the rotation support hole and mounted on a side of the base frame.

8. The apparatus of claim 1 , further including a return spring connected between the lock plate and the base frame and configured to provide an elastic return force for rotating the lock plate forward, which is an unlocking direction.

9. The apparatus of claim 8 , wherein a spring fixing end portion holding and fixing an end portion of the return spring is formed on a rear surface of a middle portion of the lock plate.

10. The apparatus of claim 1 , wherein the support bracket includes:
a fixed plate mounted on the floor panel while surrounding a fixed rail of the seat rail, the fixed rail being fastened to the movable rail; and
a guide formed on a side of the fixed plate and configured to come in contact with a bottom portion of the lock plate.

11. The apparatus of claim 10 , wherein a length of the guide is greater than an advance distance set to adjust a front and rear position of the movable rail and is smaller than a maximum advance distance of the movable rail.

12. An apparatus for unlocking a seat, the apparatus comprising:
a base frame mounted on a movable rail of a seat rail;
a seat frame mounted on the base frame and tiltable;
a lock pin fixed to a side of the seat frame;
a support bracket mounted on a floor panel; and
a lock plate rotatably mounted on a side of the base frame, and configured to be locked to the lock pin when the lock plate comes in contact with the support bracket and to be unlocked from the lock pin when the lock plate comes apart from the support bracket,
wherein the support bracket includes:
a fixed plate mounted on the floor panel while surrounding a fixed rail of the seat rail, the fixed rail being fastened to the movable rail; and
a guide formed on a side of the fixed plate and configured to come in contact with a bottom portion of the lock plate.

13. An apparatus for unlocking a seat, the apparatus comprising:
a base frame mounted on a movable rail of a seat rail;
a seat frame mounted on the base frame and tiltable;
a lock pin fixed to a side of the seat frame;
a support bracket mounted on a floor panel; and
a lock plate rotatably mounted on a side of the base frame, and configured to be locked to the lock pin when the lock plate comes in contact with the support bracket and to be unlocked from the lock pin when the lock plate comes apart from the support bracket,
wherein the lock plate includes:
a hook portion formed at a first portion of the lock plate and configured to be detachably coupled to the lock pin; and
a lever portion formed at a second portion of the lock plate and configured to selectively come in contact with the support bracket, and

wherein the apparatus further includes a guide plate mounted on the seat frame and formed to be bent to guide the hook portion of the lock plate to the lock pin between the seat frame and the guide plate.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp
• Das Co Ltd

Inventors

• Hong Deok Gi
• Kim Jae Youn

Classifications

• B60N2/0818

  inside the rail · CPC title

• B60N2/0862

  sliding · CPC title

• B60N2/12 Primary

  slidable and tiltable · CPC title

• B60N2/20

  the back-rest being tiltable, e.g. to permit easy access (B60N2/04, B60N2/22 {, B60N2/3002} take precedence) · CPC title

• B60N2/3065

  in a longitudinal-vertical plane · CPC title