VEHICLE SEAT

• US 20140117738A1
• Filed: 10/22/2013
• Published: 05/01/2014
• Est. Priority Date: 10/31/2012
• Status: Active Grant

• Current Assignee: Central Japan Railway Company, Tenryu Industries Co., Ltd.
• Original Assignee: Central Japan Railway Company, Tenryu Industries Co., Ltd.
• Inventors: TAKAHASHI, Yukio, Tsunoda, Hiroki, Kawakami, Soshi, Futamura, Yuya, Yamabe, Masaki
• Granted Patent: US 9,028,004 B2
• Time in Patent Office: Days
• US Class Current: 297/452.56
• CPC Class Codes: B60N 2/7035 Cushions
• CPC Class Codes: B60N 2/7094 Upholstery springs
• CPC Class Codes: B60N 2/72 Attachment or adjustment thereof

Abstract

The present invention provides a vehicle seat which includes a seat frame, a seat cushion receiving member stretched across the seat frame, and a seat cushion placed on the seat cushion receiving member. In the vehicle seat, the seat cushion has such dimensions as to cover the seat frame as viewed in plan, and a lower surface of the seat cushion has a raised portion in a region covering the seat frame, and the raised portion is raised so as not to contact the seat frame.

Claims

1. A vehicle seat, comprising:

a seat frame;

a seat cushion receiving member stretched across the seat frame; and

a seat cushion placed on the seat cushion receiving member, wherein

the seat cushion has such dimensions as to cover the seat frame as viewed in plan, and

a lower surface of the seat cushion has a raised portion in a region covering the seat frame, and the raised portion is raised so as not to contact the seat frame.

2. The vehicle seat according to claim 1, wherein

the raised portion is raised so as not to contact the seat frame even when a passenger weighing 70 kg is seated on the seat cushion.

3. The vehicle seat according to claim 1, wherein

the seat cushion receiving member is a sheet, and is stretched across the seat frame via a coil spring,

the lower surface of the seat cushion contacts the seat cushion receiving member and an end of the coil spring which is located closer to the seat cushion receiving member, and

the raised portion is formed so as to contact neither an end of the coil spring which is located closer to the seat frame nor the seat frame.

4. The vehicle seat according to claim 1, wherein

the seat cushion receiving member is a sheet, and is stretched across the seat frame via a coil spring,

the lower surface of the seat cushion contacts the seat cushion receiving member, and

the raised portion is formed so as to contact neither the coil spring nor the seat frame.

5. The vehicle seat according to claim 1, wherein

the raised portion is raised in a stepped fashion with respect to the lower surface of the seat cushion in a region covering the seat cushion receiving member so as to form a hook shape in cross section.

6. The vehicle seat according to claim 1, wherein

the raised portion is gradually raised with respect to the lower surface of the seat cushion in a region covering the seat cushion receiving member so as to form a tilted shape in cross section.