# US 9,517,735 B2 · Interior material

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- Number: US 9,517,735 B2
- Document ID: US9517735B2
- Status: Granted
- Kind: B2
- Application number: 14/383,276
- Filed: 2013-02-08
- Published: 2015-02-19
- Granted: 2016-12-13
- Earliest claimed: 2012-03-08
- Assignees: Ts Tech Co., Ltd.
- Applicants: Ts Tech Co., Ltd.
- Inventors: Hideyuki Kurosaki; Kenichi Arai
- Web page: https://patentgrep.com/patent/US9517735B2

## CPC

- B60R 13/0243: {Doors}
- B60R 13/02: {Internal} Trim mouldings {; Internal} Ledges; Wall liners {for passenger compartments}; Roof liners (B60R13/01 takes precedence {; padded linings for the vehicle interior B60R21/04; arrangements or adaptations of floor mats or carpets in vehicles B60N3/04; internal lining for trains B61D17/18})
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A door lining serving as an interior material comprises a door center portion. The door center portion is provided with: a door center base material; a door center pad supported by the door center base material and configured to be elastically deformable; a door center surface skin material covering the door center pad; and a sewed portion formed by sewing the door center pad and the door center surface skin material together by a sewing thread. In the door center pad, a thick section and a thin section are formed, and the sewed portion is provided in the thin section.

## Claims

### Claim 1

An interior member comprising:
a pad including a thin-walled portion and a thick-walled portion, the pad being elastically deformable;
a skin member that covers the pad;
a sewn region produced by sewing the pad and the skin member to each other with a sewing thread; and
a base that supports the pad thereon,
wherein:
the sewn region is disposed on the thin-walled portion of the pad,
the thin-walled portion is made thinner than the thick-walled portion so as to reduce a reaction force applied from the pad to the sewing thread, and
the base integrally includes a ledge configured to push a portion of the sewn region, that is positioned on a side of the pad, toward the skin member of the sewn region.

### Claim 2 (depends on 1)

The interior member according to claim 1, wherein the thin-walled portion is formed by bending.

### Claim 3 (depends on 1)

The interior member according to claim 1, wherein the ledge has a corner; and
the sewing thread is held in contact with a portion of the ledge that is different from the corner.

### Claim 4 (depends on 1)

The interior member according to claim 1, wherein the ledge is of an arc-like cross-sectional shape.

### Claim 5 (depends on 1)

The interior member according to claim 1, wherein the base further includes a flat portion contiguous to the ledge; and
the thick-walled portion is disposed on the flat portion, and the thin-walled portion is disposed on the ledge.

### Claim 6 (depends on 1)

The interior member according to claim 1, wherein an area of the thin-walled portion that corresponds to the sewn region is thinner than an area of the thin-walled portion that does not correspond to the sewn region.

### Claim 7 (depends on 1)

The interior member according to claim 1, wherein the sewn region includes:
a thin-walled sewn region produced by sewing the skin member and the thin-walled portion to each other with the sewing thread; and
a thick-walled sewn region produced by sewing the skin member and the thick-walled portion to each other with the sewing thread, the thin-walled sewn region and the thick-walled sewn region being integral with each other.

### Claim 8 (depends on 1)

The interior member according to claim 1, wherein the thin-walled portion is wider than a diameter of the sewing thread.

### Claim 9 (depends on 1)

The interior member according to claim 1, wherein the interior member is mounted on a vehicle.

### Claim 10 (depends on 1)

The interior member according to claim 1, wherein the thin-walled portion is made of polypropylene foam.

### Claim 11 (depends on 4)

The interior member according to claim 4, wherein the sewing thread is positioned on a crest of the ledge.