# US 10,308,149 B2 · Vehicle seat

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- Number: US 10,308,149 B2
- Document ID: US10308149B2
- Status: Granted
- Kind: B2
- Application number: 15/651,799
- Filed: 2017-07-17
- Published: 2018-01-25
- Granted: 2019-06-04
- Earliest claimed: 2016-07-20
- Assignees: Tachi-S Co., Ltd.
- Applicants: Tachi-S Co., Ltd.
- Inventors: Hitoshi Abe; Takahiko Suzuki
- Web page: https://patentgrep.com/patent/US10308149B2

## CPC

- B60N 2/5883: {by sewing, stitching or threading}
- B60N 2/5891: {characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for}
- B60N 2/64: Back-rests {or cushions (B60N2/2222 takes precedence)}
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

A vehicle seat includes: a pad including: a first pad part; a second pad part; a step portion formed along at least a part of the boundary; and a groove portion extending from the step portion into between the first and second pad parts over the whole length of the step portion; and a trim cover formed by sewing multiple skin pieces together, the skin pieces including: a first body configured to cover the surface of the first pad part following the surface of the step portion; a first gore configured to cover the surface of the step portion; a second body configured to cover the surface of the second pad part following the surface of the step portion; and a second gore jointed to the second body, wherein an edge of the first gore and an edge of the second gore are respectively stored in the groove portion.

## Claims

### Claim 1

A vehicle seat comprising:
a pad including:
a first pad part;
a second pad part arranged adjacent to the first pad part and formed concave with respect to the first pad part along at least a part of the boundary with the first pad;
a step portion formed along at least a part of the boundary; and
a groove portion extending from the step portion into between the first and second pad parts over the whole length of the step portion; and
a trim cover configured to cover the pad integrally, the trim cover formed by sewing multiple skin pieces together, the skin pieces including:
a first body configured to cover the surface of the first pad part following the surface of the step portion;
a first gore, jointed to the first body, configured to cover the surface of the step portion;
a second body configured to cover the surface of the second pad part following the surface of the step portion;
a second gore jointed to the second body, wherein an edge of the first gore and an edge of the second gore are respectively stored in the groove portion;
a seam allowance of the first body and the first gore is superimposed on the surface of the step portion; and
a seam allowance of the second body and the second gore is inserted into the groove portion.

### Claim 2 (depends on 1)

The vehicle seat according to claim 1, wherein
the edge of the first gore and the edge of the second gore are sewn together in a superimposed state.

### Claim 3 (depends on 2)

The vehicle seat according to claim 2, wherein
the edge of the first gore and the edge of the second gore are sewn together integrally with a reinforcing member.

### Claim 4 (depends on 2)

The vehicle seat according to claim 2, wherein
the edge of the first gore and the edge of the second gore are sewn together by multiple rows of parallel seams.

### Claim 5 (depends on 1)

The vehicle seat according to claim 1, wherein
the maximum value of the step height of the step portion is 15 mm or less.

### Claim 6 (depends on 2)

The vehicle seat according to claim 2, wherein:
the edge of the first gore and the edge of the second gore are sewn together by a seam in the groove portion; and
the first body and the first gore are sewn together by a seam on the outside of the groove portion.