Conveyance seat

Patent metadata

Field	Value
Publication number	US-11420537-B2
Application number	US-202016928400-A
Country	US
Kind code	B2
Filing date	Jul 14, 2020
Priority date	Jul 17, 2019
Publication date	Aug 23, 2022
Grant date	Aug 23, 2022

Abstract

A vehicle seat includes a seat cushion provided with a seat cushion frame, a front link configured to adjust a height of the seat cushion with respect to a base that is a slide rail or a vehicle body floor, and a front load detection sensor attached to an upper rail and configured to detect a load applied to the vehicle seat. The seat cushion frame includes a pair of side frames separated from each other in a seat width direction, the front link includes a first rotation shaft configured to be rotatable with respect to the seat cushion frame and a second rotation shaft configured to be rotatable with respect to the base, and the front load detection sensor is arranged at a position different from the second rotation shaft in a front to back direction of the seat.

First claim

What is claimed is:

1. A conveyance seat, comprising:
a seat cushion provided with a seat cushion frame;
a first link member configured to adjust a height of the seat cushion with respect to a base that is a slide rail or a vehicle body floor; and
a first load detection sensor attached to the base and configured to detect a load applied to the conveyance seat, wherein
the seat cushion frame includes a pair of side frames separated from each other in a width direction of the conveyance seat,
the first link member includes a first rotation shaft configured to be rotatable with respect to the seat cushion frame and a second rotation shaft configured to be rotatable with respect to the base,
the first load detection sensor includes a first sensor shaft to which the load applied to the conveyance seat is applied and is arranged at a position different from the second rotation shaft in a front to back direction of the conveyance seat, and
an upper end of the second rotation shaft is arranged below an upper end of the first sensor shaft in an up to down direction of the conveyance seat.

2. The conveyance seat according to claim 1 , wherein
at least a part of the second rotation shaft is arranged at the same height position as the first sensor shaft in the up to down direction of the conveyance seat.

3. The conveyance seat according to claim 1 , wherein
the seat cushion frame includes a connecting member connecting the pair of side frames, and
when the seat cushion is located at the lowest position, at least a part of the first load detection sensor is arranged at the same height position as the connecting member in the up to down direction of the conveyance seat.

4. The conveyance seat according to claim 1 , further comprising
a second link member configured to adjust the height of the seat cushion with respect to the base at a position rearward of the first link member, wherein
the pair of side frames includes a first side frame and a second side frame,
the first link member and the second link member are operably connected to the first side frame,
the first side frame is arranged between the first link member and the second link member in the width direction of the conveyance seat, and
the first sensor shaft is arranged between the first link member and the second link member in the width direction of the conveyance seat.

5. The conveyance seat according to claim 4 , further comprising
a second load detection sensor attached to the base and configured to detect the load applied to the conveyance seat, at a position rearward of the first load detection sensor, wherein
the second load detection sensor includes a second sensor shaft to which the load applied to the conveyance seat is applied, and
the second sensor shaft is arranged between the first link member and the second link member in the width direction of the conveyance seat.

6. The conveyance seat according to claim 1 , further comprising
a second link member configured to adjust the height of the seat cushion with respect to the base at a position rearward of the first link member, and
a second load detection sensor attached to the base and configured to detect the load applied to the conveyance seat, at a position rearward of the first load detection sensor, wherein
the second load detection sensor includes a coupler for connecting to an external electronic device, and
the second link member is arranged between each of the side frames and the coupler in the width direction of the conveyance seat.

7. The conveyance seat according to claim 6 , wherein
the coupler is arranged at the same position as the second link member in the front to back direction of the conveyance seat.

8. The conveyance seat according to claim 1 , further comprising
a second link member configured to adjust the height of the seat cushion with respect to the base at a position rearward of the first link member, and
a second load detection sensor attached to the base and configured to detect the load applied to the conveyance seat, at a position rearward of the first load detection sensor, wherein
the first link member and the second link member are attached to a link support bracket,
the first load detection sensor and the second load detection sensor are attached to the link support bracket, and
the link support bracket is bent upward and is separated from the base between an attachment position of the first load detection sensor and an attachment position of the second load detection sensor.

9. The conveyance seat according to claim 1 , further comprising
a plate-shaped pressure receiving member suspended on the seat cushion frame,
a recessed portion recessed inward and formed at a side portion of the pressure receiving member in the width direction of the conveyance seat, and
a second load detection sensor attached to the base and configured to detect the load applied to the conveyance seat, at a position rearward of the first load detection sensor, wherein
the recessed portion is arranged between the first load detection sensor and the second load detection sensor in the front to back direction of the conveyance seat.

10. A conveyance seat, comprising:
a seat cushion provided with a seat cushion frame;
a first link member configured to adjust a height of the seat cushion with respect to a base that is a slide rail or a vehicle body floor; and
a first load detection sensor attached to the base and configured to detect a load applied to the conveyance seat, wherein
the seat cushion frame includes a pair of side frames separated from each other in a width direction of the conveyance seat,
the first link member includes a first rotation shaft configured to be rotatable with respect to the seat cushion frame and a second rotation shaft configured to be rotatable with respect to the base,
the first load detection sensor is arranged at a position different from the second rotation shaft in a front to back direction of the conveyance seat,
the seat cushion frame includes a connecting member connecting the pair of side frames, and
when the seat cushion is located at the lowest position, at least a part of the first load detection sensor is arranged at the same height position as the connecting member in an up to down direction of the conveyance seat.

11. The conveyance seat according to claim 10 , wherein
the first load detection sensor includes a first sensor shaft to which the load applied to the conveyance seat is applied, and
at least a part of the second rotation shaft is arranged at the same height position as the first sensor shaft in the up to down direction of the conveyance seat.

12. The conveyance seat according to claim 11 , wherein
an upper end of the second rotation shaft is arranged below an upper end of the first sensor shaft in the up to down direction of the conveyance seat.

13. The conveyance seat according to claim 11 , further comprising
a second link member configured to adjust the height of the seat cushion with respect to the base at a position rearward of the first link member, wherein
the pair of side frames includes a first side frame and a second side frame,
the first link member and the second link member are operably connected to the first side frame,
the first side frame is arranged between the first link member and the second link member in the width direction of the conveyance seat, and
the first sensor shaft is arranged between the first link member and the second link member in the width direction of the conveyance seat.

14. The conveyance seat according to claim 13 , further comprising
a second load detecti

Assignees

• Ts Tech Co Ltd

Inventors

• Aoki Yuto
• Nonaka Hidetsune

Classifications

• B60N2/68

  Seat frames · CPC title

• B60N2/1615 Primary

  Parallelogram-like structure · CPC title

• B60N2/002

  Seats provided with an occupancy detection means mounted therein or thereon (detection means responsive to presence or absence of children B60N2/266) · CPC title

• B60N2/0031

  mounted on the frame · CPC title

• B60N2210/42

  Strain gauges · CPC title