Vehicle seat
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKoichi Enoki, Masahide Sawada
Life of this patent
Estimating the term…
Abstract
An S-spring 14 is provided in a state of tension between a pair of seat back frames 10 constituting a vehicle seat 1. A support section 16a of a bracket 16 fixed to the seat back frame 10 supports a part of an end of the S-spring 14 from behind. The support section 16a is formed with a length equal to or greater than one pitch of the S-spring 14 in a no-load state and discontinuously supports center portions α of the S-spring 14. When a load equal to or greater than a predetermined level acts on the S-spring 14, the S-spring 14 is stretched to cause the center portions α to be dislocated from the support sections 16a, and as a result, the length of a deflectable portion of the S-spring 14 is changed.
Claims5
A vehicle seat which is mounted in a vehicle comprising:
- a pair of side frames comprised of a first side frame and a second side frame;
- an S-spring that is provided in a state of tension between the pair of the side frames;
- and
- a spring support section that is fixed to the side frames,
- wherein:
- the S-spring is directly fixed to and supported by the spring support section from behind, and
- the number of places in which the S-spring is supported by the spring support section is decreased at the time of a collision to lengthen a deflectable portion of the S-spring.
Dependencies are inferred from the claim text.