Vehicle seat

• US 9,610,871 B2
• Filed: 06/16/2015
• Issued: 04/04/2017
• Est. Priority Date: 06/24/2014
• Status: Active Grant

• Current Assignee: NHK Spring Company Limited
• Original Assignee: NHK Spring Company Limited
• Inventors: Yasuda, Kenzo, Kushiku, Hiroshi
• Primary Examiner(s): Cranmer, Laurie K
• Application Number:
  US14/741,325
• Publication Number:
  US 20150367762A1
• Time in Patent Office: 658 Days
• Field of Search: 29745218, 29745249, 29745253, 29745254, 29721613, 29721614
• CPC Class Codes: B60N 2/4228 due to impact coming from the rear
• CPC Class Codes: B60N 2/42709 involving residual deformation or fracture of the structure
• CPC Class Codes: B60N 2/42745 of the back-rest B60N2/433 takes precedence; higher part of the back-rest moving together with the headrest B60N2/888
• CPC Class Codes: B60N 2/68 Seat frames
• CPC Class Codes: B60N 2/686 Panel like structures
• CPC Class Codes: B60N 2/7094 Upholstery springs
• CPC Class Codes: B60N 2/80 Head-rests

Abstract

A vehicle seat includes: a seatback frame of a resin-formed seatback, including a plate-shaped back face panel portion; a headrest; a seatback pad; a lattice-shaped spring member formed from wire arranged in a lattice shape, attached to the seatback frame at a front side of the back face panel portion, and that resiliently supports the seatback pad from a rear side, with a space formed between the back face panel portion and the lattice-shaped spring member; and a load transmission section provided at one of the lattice-shaped spring member or the back face panel portion and disposed inside the space so as to project out toward the side of the other one of the lattice-shaped spring member or the back face panel portion, such that a gap is formed between the load transmission section and the other one of the lattice-shaped spring member or the back face panel portion.

Claims

1. A vehicle seat comprising:

a seatback frame that configures a frame of a resin-formed seatback, and that comprises a plate-shaped back face panel portion disposed at a back face of the seatback;

a headrest that is provided at an upper end of the seatback;

a seatback pad that is provided at a front side of the seatback frame;

a lattice-shaped spring member that is formed from wire arranged in a lattice shape, that is attached to the seatback frame at a seat front side of the back face panel portion, and that is configured to resiliently support the seatback pad from a seat rear side, with a space formed between the back face panel portion and the lattice-shaped spring member; and

a load transmission section that includes a first face and a second face being opposite to the first face, the load transmission section being disposed inside the space such that the first face is attached to one of the lattice-shaped spring member or the back face panel portion and the second face projects out toward the other one of the lattice-shaped spring member or the back face panel portion such that a gap is formed between the load transmission section and the other one of the lattice-shaped spring member or the back face panel portion, and such that the second face does not contact any other member in a normal operation.

2. The vehicle seat of claim 1, wherein the load transmission section is a shock absorbing member that is attached to the one of the lattice-shaped spring member or the back face panel portion, and that absorbs impact by undergoing deformation.

3. The vehicle seat of claim 1, wherein the load transmission section comprises a wire engagement portion that engages with the wire configuring the lattice-shaped spring member, and the load transmission section is attached to the lattice-shaped spring member.