Rear seat for vehicle

Patent metadata

Field	Value
Publication number	US-11292370-B2
Application number	US-202016896730-A
Country	US
Kind code	B2
Filing date	Jun 9, 2020
Priority date	Sep 10, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A rear seat for a vehicle is provided, in which when the seat back is reclined. The angle of the seat cushion is adjusted by following the operation of the seat back to provide an optimal posture for fatigue reduction of a passenger. When the seat back is folded, the seat cushion is not operated.

First claim

What is claimed is:

1. A rear seat for a vehicle, comprising:
a back frame rotatably connected to a seat bracket through a recliner;
a cushion frame rotatably mounted on the seat bracket and being rotated forward by the back frame when the back frame is tilted rearward by following the tilting of the back frame;
a locking rod that extends in a front-rear direction from the seat bracket;
a locking slider that is slidably disposed on the locking rod and of which a position is selectively fixed on the locking rod; and
a connection link that is rotatably connected to the locking slider and the cushion frame and fixes a position of the cushion frame in cooperation with the locking slider.

2. The rear seat of claim 1 , further comprising:
driving bars that extend downward and rotate with the back frame, wherein the driving bars are disposed at a lower end of the back frame; and
connecting bars that extend upward and corresponding to the driving bars, wherein the connecting bars are disposed at a rear end of the cushion frame,
wherein when the back frame is tilted rearward, the connecting bars are pushed by the rotating driving bars and the cushion frame is rotated forward.

3. The rear seat of claim 2 , wherein the driving bars are disposed behind the connecting bars, connecting grooves recessed rearward are formed at a front end of the driving bars, and connecting pins inserted in the connecting grooves are formed at the connecting bars.

4. The rear seat of claim 1 , further comprising:
first rotary links rotatably connected to a rear end of the cushion frame and a rear end of the seat bracket; and
second rotary links rotatably connected to a front end of the cushion frame and a front end of the seat bracket.

5. The rear seat of claim 4 , wherein the first rotary links are shorter than the second rotary links.

6. The rear seat of claim 4 , wherein the first rotary links and the second rotary links are in a laid-down state at an initial position, and as the first and second rotary links are rotated forward to be erected, the cushion frame is moved forward and upward.

7. The rear seat of claim 1 , wherein the locking slider includes:
a locking housing formed to surround the locking rod; and
an elastic locking member disposed inside the locking housing, formed to surround the locking rod, elastically deformable in the width direction, fixing the position thereof by surrounding and tightening the locking rod, connected with an operation cable to cause the elastic locking member to deform and extend in a width direction and separate from the locking rod when a pulling force is applied through the operation cable.

8. The rear seat of claim 7 , wherein the elastic locking member is a coil spring having a first end connected to the locking housing and a second end connected to the operation cable, and having the locking rod therethrough.

9. The rear seat of claim 1 , wherein the connection link is a multi-link including a plurality of links rotatably connected to each other and connected to the locking slider and a front end of the cushion frame.

10. The rear seat of claim 4 , further comprising:
elastic return members connected to the seat bracket and the cushion frame and providing elasticity to rotate the cushion frame rearward.

11. The rear seat of claim 10 , wherein the elastic return members are spiral springs having a first end connected to the seat bracket and a second end connected to the second rotary link, and provide elasticity to rotate the second rotary links rearward.

12. The rear seat of claim 1 , wherein stoppers that restrict behavior of the cushion frame by coming in contact with a rear end of the cushion frame when the cushion frame is at an initial position without rotating are formed at a rear end of the seat bracket.

13. The rear seat of claim 4 , wherein the second rotary link is a multi-link including several links rotatably connected to each other and has an entire length greater than the first rotary link.

14. The rear seat of claim 4 , further comprising:
an actuator connected to the front end of the cushion frame and the seat bracket and changes a front-rear directional length thereof when operating to lift the front end of the cushion frame.

15. The rear seat of claim 13 , wherein the actuator includes:
a motor disposed at the front end of the cushion frame and configured to apply torque when operating; and
a screw that extends rearward from the motor, is rotatably connected to the seat bracket, and changes in length when the motor is operated.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Daechang Seat Co Ltd Dongtan

Inventors

• Jung Chan Ho
• Moon Hyun Kyu
• Won Tae Hee
• You Jung Sang
• Song Hun Woong
• Na Seon Chae
• Lee Myung Soo
• Hwang In Chang
• Kim Jeong Soo
• Park Jun Kyu

Classifications

• B60N2/20 Primary

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

• B60N2/64 Primary

  Back-rests {or cushions (B60N2/2222 takes precedence)} · CPC title

• A47C1/035

  in combination with movably-coupled seat and back-rest · CPC title

• B60N2/1853

  Linear actuator, e.g. screw mechanism · CPC title

• B60N2/3065

  in a longitudinal-vertical plane · CPC title