Tip-up/dive-down type reclining seat for vehicle

Patent metadata

Field	Value
Publication number	US-10518667-B2
Application number	US-201715817728-A
Country	US
Kind code	B2
Filing date	Nov 20, 2017
Priority date	Dec 28, 2005
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A vehicle seat is disclosed. The vehicle seat includes reclining lock mechanisms for releasably locking a seat back, a first releasing mechanism for unlocking the reclining lock mechanisms and causing the seat back to be brought to a condition where the seat back is allowed to be pivoted forward and rearward, the first releasing mechanism including a collapsible link bar member 70, a braking link 71 having a laterally projecting induction pin 72, a first link plate 73, and a first operating lever 7, a tipping-up lock mechanism for releasably locking a seat cushion, the tipping-up lock mechanism including cutout teeth 52a to 52c provided at the seat cushion, and a latch 80 and a cam member 81 which are supported to the seat back, and a second releasing mechanism for unlocking the tipping-up lock mechanism and causing the seat cushion to be brought to a condition where the seat cushion is allowed to be pivoted, the second releasing mechanism including a recess portion 80d formed in the latch 80 for allowing the cam member 81 to be swung up, a second link plate 82, and a second operating lever 8.

First claim

The invention claimed is:

1. A vehicle seat comprising:
a seat cushion;
a seat back;
a support portion that supports the seat cushion; and
a reclining lock mechanism configured to adjust an angle of the seat back relative to a vehicle body floor,

wherein:
a state of the vehicle seat is switchable among:
a seating state in which a seat occupant can be seated on the vehicle seat,
a tipped-up state in which the seat cushion is tipped up, and
a dived-down state in which the seat back and the seat cushion are stacked with each other and stored on the vehicle body floor;

the seat cushion is rotatably coupled to the seat back via a rotating shaft; and
when the vehicle seat is in the seating state, at least a portion of the reclining lock mechanism is disposed between the support portion and the rotating shaft in a seat front-to-rear direction.

2. The vehicle seat according to claim 1 , wherein:
the seat back comprises a first operating lever configured to unlock the reclining lock mechanism; and
when the vehicle seat is in the seating state, at least a portion of the reclining lock mechanism is disposed between the support portion and the first operating lever in the seat front-to-rear direction.

3. The vehicle seat according to claim 1 , wherein:
when the vehicle seat is in the dived-down state, at least a portion of the reclining lock mechanism is disposed at a higher position than the rotating shaft.

4. The vehicle seat according to claim 1 , wherein:
the seat cushion comprises a second operating lever configured to tip up the seat cushion to place the vehicle seat into the tipped-up state;
the second operating lever is provided at a front portion of the seat cushion in the seat front-to-rear direction when the vehicle seat is in the seating state; and
at least a portion of the reclining lock mechanism is disposed at a same height as the second operating lever when the vehicle seat is in the seating state.

5. The vehicle seat according to claim 1 , further comprising:
a receiving base that is provided at a vehicle body floor side of the vehicle seat and configured to support the support portion;

wherein:
the receiving base comprises a concave portion.

6. A vehicle seat comprising:
a seat cushion;
a seat back;
a leg portion that supports the seat cushion; and
a reclining lock mechanism configured to adjust an angle of the seat back relative to a vehicle body floor;

wherein:
a state of the vehicle seat is switchable among:
a seating state in which a seat occupant can be seated on the vehicle seat,
a tipped-up state in which the seat cushion is tipped up, and
a dived-down state in which the seat back and the seat cushion are stacked with each other and stored on the vehicle body floor;

the seat cushion is rotatably coupled to the seat back via a rotating shaft; and
when the vehicle seat is in the seating state, at least a portion of the reclining lock mechanism is disposed between the leg portion and the rotating shaft in a seat front-to-rear direction.

7. The vehicle seat according to claim 6 , wherein:
the seat back comprises a first operating lever configured to unlock the reclining lock mechanism; and
when the vehicle seat is in the seating state, at least a portion of the reclining lock mechanism is disposed between the leg portion and the first operating lever in the seat front-to-rear direction.

8. The vehicle seat according to claim 6 , wherein:
when the vehicle seat is in the dived-down state, at least a portion of the reclining lock mechanism is disposed at a higher position than the rotating shaft.

9. The vehicle seat according to claim 6 , wherein:
the seat cushion comprises a second operating lever configured to tip up the seat cushion to place the vehicle seat into the tipped-up state;
the second operating lever is provided at a front portion of the seat cushion in the seat front-to-rear direction when the vehicle seat is in the seating state; and
at least a portion of the reclining lock mechanism is disposed at a same height as the second operating lever when the vehicle seat is in the seating state.

10. The vehicle seat according to claim 6 , further comprising:
a receiving base that is provided at a vehicle body floor side of the vehicle seat and configured to support the leg portion;

wherein:
the receiving base comprises a concave portion.

11. The vehicle seat according to claim 6 , further comprising:
a receiving base that is provided at a vehicle body floor side of the vehicle seat and configured to support the leg portion;

wherein:
the leg portion is disengaged with the receiving base when the vehicle seat is in the dived-down state.

12. The vehicle seat according to claim 6 , further comprising:
a receiving base that is provided at a vehicle body floor side of the vehicle seat and configured to support the leg portion;

wherein:
when the vehicle seat is in the tipped-up state, at least a portion of the leg portion is disposed between the reclining lock mechanism and the receiving base in the seat front-to-rear direction.

13. The vehicle seat according to claim 6 , wherein:
the seat cushion comprises a second operating lever configured to tip up the seat cushion to place the vehicle seat into the tipped-up state;
the second operating lever is provided at a front portion of the seat cushion in the seat front-to-rear direction when the vehicle seat is in the seating state; and
when the vehicle seat is in the dived-down state, a lower end of the second operating lever is disposed at a lower position than a lower end of the leg portion.

14. The vehicle seat according to claim 6 , wherein:
when the vehicle seat is in the tipped-up state, the rotating shaft is disposed at a rear of an imaginary line in the seat front-to-rear direction, the imaginary line being a line connecting the reclining lock mechanism and a leg rotating shaft that rotates the leg portion relative to the seat cushion.

15. The vehicle seat according to claim 11 , wherein:
when the vehicle seat is in the dived-down state, a rear end of the leg portion is disposed at a higher position than a front end of the leg portion.

Assignees

• Ts Tech Co Ltd

Inventors

• Abe Hirohisa
• Tsujibayashi Toshiyuki

Classifications

• B60N2/10 Primary

  tiltable (B60N2/12 {, B60N2/2875} take precedence) · CPC title

• B60N2/2227

  and provided with braking systems · CPC title

• B60N2/3045

  about transversal axis · CPC title

• B60N2/3009

  about transversal axis · 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