# US 10,369,907 B2 · Seat frame for vehicle

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- Number: US 10,369,907 B2
- Document ID: US10369907B2
- Status: Granted
- Kind: B2
- Application number: 15/746,198
- Filed: 2016-08-02
- Published: 2018-07-26
- Granted: 2019-08-06
- Earliest claimed: 2015-08-04
- Assignees: Ts Tech Co., Ltd.
- Applicants: Ts Tech Co., Ltd.
- Inventors: Hiroshi Baba; Takaya Kurisu; Yuki Hosokawa
- Web page: https://patentgrep.com/patent/US10369907B2

## CPC

- B60N 2/42709: {involving residual deformation or fracture of the structure}
- B60N 2/0031: {mounted on the frame}
- B60N 2/16: height-adjustable
- B60N 2/4228: {due to impact coming from the rear}
- B60N 2/427: Seats or parts thereof displaced during a crash
- B60N 2/68: Seat frames
- B60N 2/682: {Joining means}
- B60N 2/90: Details or parts not otherwise provided for
- B60N 2210/40: Force or pressure sensors
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

Right and left brackets coupling a seat back frame and seat cushion frame together are configured to adjust an amount of deformation upon impact absorption. A vehicle seat frame includes a seat cushion frame, seat back frame, coupling bracket configured to couple a cushion side frame as a side frame of the seat cushion frame on one side of the vehicle seat frame and a seat back side frame as a side frame of the seat back frame on the one side, and coupling bracket configured to couple a cushion side frame as a side frame of the seat cushion frame on the other side and a seat back side frame as a side frame of the seat back frame on the other side. Deformability upon impact absorption is different between a weak portion provided at the coupling bracket and a weak portion provided at the coupling bracket.

## Claims

### Claim 1

A vehicle seat frame comprising:
a seat cushion frame;
a seat back frame;
a first coupling bracket configured to couple a first cushion side frame as a side frame of the seat cushion frame on one side of the vehicle seat frame and a first seat back side frame as a side frame of the seat back frame on the one side; and
a second coupling bracket configured to couple a second cushion side frame as a side frame of the seat cushion frame on an other side of the vehicle seat frame and a second seat back side frame as a side frame of the seat back frame on the other side;
wherein the first coupling bracket includes
a first seat-back-side coupling region having a portion to be coupled to the first seat back side frame,
a first cushion-side coupling region having a portion to be coupled to the first cushion side frame, and
a first weak portion that connects the first seat-back-side coupling region and the first cushion-side coupling region together;
wherein the second coupling bracket includes
a second seat-back-side coupling region having a portion to be coupled to the second seat back side frame,
a second cushion-side coupling region having a portion to be coupled to the second cushion side frame, and
a second weak portion that connects the second seat-back-side coupling region and the second cushion-side coupling region together; and
wherein an offset amount in a seat width direction between a surface forming the first seat-back-side coupling region and a surface forming the first cushion-side coupling region at the first coupling bracket is different from an offset amount in the seat width direction between a surface forming the second seat-back-side coupling region and a surface forming the second cushion-side coupling region at the second coupling bracket.

### Claim 2 (depends on 1)

The vehicle seat frame of claim 1, wherein
the first weak portion and the second weak portion are different from each other in their respective shapes.

### Claim 3 (depends on 1)

The vehicle seat frame of claim 1, wherein:
the first weak portion is bent outward from the vehicle seat frame with respect to the first seat-back-side coupling region and the first cushion-side coupling region; and
the second weak portion is bent outward from the vehicle seat frame with respect to the second seat-back-side coupling region and the second cushion-side coupling region.

### Claim 4 (depends on 1)

The vehicle seat frame of claim 1, wherein
the surface forming the first seat-back-side coupling region and the surface forming the first cushion-side coupling region are positioned within a same plane, and
the surface forming the second cushion-side coupling region is positioned inward or outward of the vehicle seat frame with respect to the surface forming the second seat-back-side coupling region.

### Claim 5 (depends on 1)

The vehicle seat frame of claim 1, wherein
the second weak portion is formed to be more easily deformable upon impact absorption as compared to the first weak portion.

### Claim 6 (depends on 4)

The vehicle seat frame of claim 4, wherein
a main driving portion of a height adjustment mechanism configured to adjust a height of the seat is provided only at the first cushion side frame of the first and second cushion side frames.

### Claim 7 (depends on 4)

The vehicle seat frame of claim 4, wherein
a seating sensor mechanism configured to detect seating of a passenger is provided only at the first cushion side frame of the first and second cushion side frames.

### Claim 8 (depends on 3)

The vehicle seat frame of claim 3, wherein deformability upon impact absorption is different between the first weak portion of the first coupling bracket and the second weak portion of at the second coupling bracket.

### Claim 9 (depends on 1)

A vehicle seat, comprising the vehicle seat frame according to claim 1.