Vehicle seat

Patent metadata

Field	Value
Publication number	US-2016280109-A1
Application number	US-201314442322-A
Country	US
Kind code	A1
Filing date	Nov 15, 2013
Priority date	Nov 16, 2012
Publication date	Sep 29, 2016
Grant date	—

Abstract

A vehicle seat includes right and left side frames 10 , and an elastic member (cushion spring 20 ) run between the right and left side frames 10 . The right and left side frames 10 include side walls 11 disposed opposite to each other in a lateral direction, and flange portions (upper flange portions 12 ) respectively extending laterally inward from the side walls 11 , and the elastic member is attached to the flange portions.

First claim

1 . A vehicle seat comprising:
right and left side frames; and an elastic member run between the right and left side frames and configured to support an occupant, wherein the right and left side frames comprise:
side walls disposed opposite to each other in a lateral direction; and
flange portions respectively extending laterally inward from the side walls,
wherein the elastic member is attached to the flange portions.

2 . The vehicle seat according to claim 1 , wherein the right and left side frames constitute a seat cushion frame,
wherein each of the flange portions has a first engagement opening formed therein with which an engagement portion formed at an end portion of the elastic member is engaged, and wherein the elastic member is inserted through and engaged with the first engagement opening from a lower side to an upper side of the first engagement opening.

3 . The vehicle, seat according to claim 2 , wherein the flange portion is an upper flange portion extending laterally inward from an upper end of the side wall.

4 . The vehicle seat according to claim 3 , wherein the elastic, member comprises a middle portion extending in the lateral direction, and slanted portions respectively extending obliquely upward from right and left ends of the middle portion.

5 . The vehicle seat according to claim 4 , comprising a height adjustment mechanism disposed between the slanted portions and the side walls and configured to adjust a height of the seat cushion frame.

6 . The vehicle seat according to claim 5 , wherein the elastic member is disposed at a position rearward of a front end portion of the height adjustment mechanism and frontward of a center of the height adjustment mechanism in a front-rear direction, and is engaged with the first engagement opening from a rear side of the first engagement opening.

7 . The vehicle seat according to claim 5 , wherein the elastic member is disposed at a position frontward of a rear end portion of the height adjustment mechanism and rearward of a center of the height adjustment mechanism in a front-rear direction, and is engaged with the first engagement opening from a front side of the first engagement opening.

8 . The vehicle seat according to claim 2 , comprising a second engagement opening with which an end portion of the engagement portion is engaged with the engagement portion of the elastic member being inserted from the upper side to the lower side,
wherein the end portion of the engagement portion of the elastic member is formed to extend to one side away from an imaginary line extending through the first engagement opening and the second engagement opening, and the second engagement opening has an end portion remote from the first engagement opening and extending to the other side away from the imaginary line.

9 . The vehicle seat according to claim 8 , wherein the first engagement opening and the second engagement opening are arranged in alignment with each other in a front-rear direction, and
wherein the end portion of the engagement portion of the elastic member is formed to face laterally inward, and the end portion of the second engagement opening remote from the first engagement opening is formed to face laterally outward.

10 . The vehicle seat according to claim 2 , wherein the elastic member comprises two front-side and rear-side elastic members provided spaced apart in a front-rear direction, and
wherein the flange portion has a front-side portion to which the front-side elastic member is attached and a rear-side portion to which the rear-side elastic member is attached, and a lateral width of the front-side portion is greater than that of the rear-side portion.

11 . The vehicle seat according to claim 8 , wherein a recess portion is formed between the first engagement opening and the second engagement opening, the recess portion being recessed downward and extending from the first engagement opening to the second engagement opening.

12 . The vehicle seat according to claim 11 , further comprising a cover member configured to cover the recess portion and placed on the engagement portion of the elastic member.

13 . The vehicle seat according to claim 2 , wherein the side frame has a first portion located frontward of the first engagement opening and a second portion located rearward of the first engagement opening, and
wherein the vehicle seat further comprises a reinforcement member extending from the first portion to the second portion and welded to the first portion and the second portion.

14 . The vehicle seat according to claim 1 , further comprising a cushion pad and a skin material covering, the cushion pad,
wherein a skin attachment member is provided at a reverse side of the cushion pad, and an engagement portion provided at an end portion of the skin material is engageable with the skin attachment member.

15 . The vehicle seat according to claim 14 , wherein a recess portion is provided at a reverse surface of the cushion pad, and
wherein the skin attachment member is configured to include a retention portion embedded and retained in the cushion pad, and an engaged portion exposed in the recess portion and engaged with the engagement portion of the skin material.

16 . The vehicle seat according to claim 15 , wherein the recess portion comprises a plurality of recess portions arranged spaced apart along a direction in which the skin attachment member extends, and
wherein the retention portion of the skin attachment member is embedded and retained in a middle portion located between the plurality of recess portions.

17 . The vehicle seat according to claim 16 , wherein the elastic member is an S-shaped spring extending in a direction from one end to another end of the cushion pad and including longitudinal and transverse dimensions to support the cushion pad from the reverse side thereof with a plurality of turns made in a transverse direction of the S-shaped spring,
wherein the skin attachment member is disposed so as not to overlap the elastic member as viewed from the reverse side, and wherein the plurality of turns of the S-shaped spring include a bent portion protruding away from the recess portions, and the middle portion and the bent portion are arranged in a same position in a longitudinal direction of the elastic, member.

18 . The vehicle seat according to claim 1 , further comprising a seat cushion and a seat back,
wherein the seat cushion comprises a seat cushion pad and the elastic member, the seat cushion pad having a through-opening through which a harness member is inserted, wherein the elastic member extends in a direction from one end to another end of the seat cushion pad and includes longitudinal and transverse dimensions to support the cushion pad from a lower side of the seat cushion pad, and wherein the elastic member and the through-opening are arranged to intersect one vertical plane extending in a longitudinal direction of the elastic member.

19 . The vehicle seat according to claim 18 , wherein the through-opening is disposed so as not to overlap the elastic member as viewed from the lower side.

20 . The vehicle seat according to claim 19 , wherein the elastic member is an S-shaped spring extending in the lateral direction and having a plurality of turns made in a transverse direction of the elastic member, and
wherein the S-shaped spring includes a portion which is located to surround the through-opening, and the portion opens rearward.

Assignees

• Ts Tech Co Ltd

Inventors

• Ito Teppei

Classifications

• B60N2/72

  Attachment or adjustment thereof · CPC title

• B60N2/7094 Primary

  Upholstery springs · CPC title

• B60N2/1615

  Parallelogram-like structure · CPC title

• B60N2/6009 Primary

  covering more than only the seat · CPC title

• B60N2/1675

  with weight compensating means · CPC title