Vehicle seat

Patent metadata

Field	Value
Publication number	US-2019217749-A1
Application number	US-201916250433-A
Country	US
Kind code	A1
Filing date	Jan 17, 2019
Priority date	Jan 18, 2018
Publication date	Jul 18, 2019
Grant date	—

Abstract

A vehicle seat including: a reclining plate; a lower arm whose rear region is coupled to the reclining plate; a leg supporting the lower arm; a reinforcing member coupled to the lower arm and reinforcing the lower arm; and a bolt fastening portion including a bolt which penetrates through the reclining plate and the lower arm in a seat width direction to fasten the reclining plate and the lower arm, wherein the reinforcing member includes: a co-fastening portion into which the bolt of the bolt fastening portion is inserted in the seat width direction so as to be fastened together with the reclining plate and the lower arm; a coupling portion coupled to a general surface portion of the lower arm which is positioned out of the co-fastening portion; and a load transmission portion configured to directly transmit a load input to the co-fastening portion to the coupling portion.

First claim

What is claimed is:

1 . A vehicle seat comprising:
a reclining plate connected to a recliner serving as a seat reclining adjustment mechanism; a lower arm serving as a side frame of a seat cushion, a rear region of the lower arm being coupled to the reclining plate; a leg supporting the lower arm in a state where the lower arm is raised with respect to a base on a floor; a reinforcing member coupled to the lower arm and reinforcing the lower arm; and a bolt fastening portion including a bolt which penetrates through the reclining plate and the lower arm in a seat width direction to fasten the reclining plate and the lower arm, wherein the reinforcing member includes:
a co-fastening portion into which the bolt of the bolt fastening portion is inserted in the seat width direction so as to be fastened together with the reclining plate and the lower arm;
a coupling portion coupled to a general surface portion of the lower arm which is positioned out of the co-fastening portion; and
a load transmission portion configured to directly transmit a load input to the co-fastening portion to the coupling portion.

2 . The vehicle seat according to claim 1 ,
wherein the reinforcing member includes:
a bottom surface covering portion covering a bottom surface portion of the lower arm;
both side surface covering portions connected to the bottom surface covering portion and covering both side surface portions of the lower arm; and
a rear surface covering portion connected to the both side surface covering portions and the bottom surface covering portion and covering a rear surface portion of the lower arm.

3 . The vehicle seat according to claim 2 , further comprising:
a rear surface coupling portion integrally coupling the rear surface covering portion with the lower arm.

4 . The vehicle seat according to claim 1 ,
wherein the reinforcing member is made of fiber-reinforced plastic.

5 . A vehicle seat comprising:
a reclining plate connected to a recliner serving as a seat reclining adjustment mechanism; a lower arm serving as a side frame of a seat cushion, a rear region of the lower arm being coupled to the reclining plate; a front leg and a rear leg supporting the lower arm in a state where the lower arm is raised with respect to a base on a floor at two positions in a front and rear direction; and a pin joining portion including a single shaft member which penetrates through the rear leg and the reclining plate in a seat width direction to join the rear leg and the reclining plate in a relatively rotatable manner.

6 . The vehicle seat according to claim 5 ,
wherein the shaft member is a bolt which penetrates through the reclining plate and the lower arm in the seat width direction so as to fasten the reclining plate and the lower arm, and wherein the rear leg is fastened together with the reclining plate and the lower arm via the shaft member.

7 . The vehicle seat according to claim 6 ,
wherein the lower arm includes a closed sectional portion having a closed sectional shape, and the shaft member penetrates through both side surface portions of the closed sectional portion so as to fasten the reclining plate and the lower arm.

8 . A vehicle seat comprising:
a frame member having a plurality of insertion holes into which a plurality of shaft portions of a plurality of bolts are respectively inserted; and a plurality of collar portions which are respectively aligned with the plurality of insertion holes of the frame member and through which the plurality of shaft portions of the plurality of bolts respectively passes, wherein the plurality of collar portions is configured as a collar body which is a single component and in which the collar portions are joined with each other into one piece.

9 . The vehicle seat according to claim 8 ,
wherein the frame member includes a pair of facing portions facing each other, the plurality of insertion holes penetrating the pair of facing portions, and wherein the collar body is arranged between the pair of facing portions.

10 . The vehicle seat according to claim 8 ,
wherein the collar body has a constant sectional shape in an insertion direction of the shaft portion of the bolt.

11 . The vehicle seat according to claim 10 ,
wherein each of a plurality of through-holes of the plurality of collar portions, through which the plurality of shaft portions of the plurality of bolts passes through, respectively, penetrates through the collar portion in a constant sectional shape in the insertion direction of the shaft portion of the bolt.

12 . The vehicle seat according to claim 8 ,
wherein the frame member includes a lower arm which serves as a side frame of a seat cushion, a rear region of the lower arm being fastened with a reclining plate by at least one of the plurality of the bolts, and the reclining plate being connected to a recliner serving as a seat reclining adjustment mechanism.

13 . The vehicle seat according to claim 8 ,
wherein the frame member includes a closed sectional portion having a closed sectional shape, and the collar body is arranged in the closed sectional portion.

Assignees

• Toyota Boshoku Kk

Inventors

• Kato Yasuhiro
• Mizobata Hiroshi

Classifications

• B60N2/682

  Joining means · CPC title

• B60N2002/684

  the back rest being mounted or joined with an easy attachment system to the seat · CPC title

• B60N2/22 Primary

  the back-rest being adjustable {(B60N2/2878 takes precedence)} · CPC title

• B60N2/68

  Seat frames · CPC title

• B60N2/20 Primary

  the back-rest being tiltable, e.g. to permit easy access (B60N2/04, B60N2/22 {, B60N2/3002} take precedence) · CPC title