Armrest device

Patent metadata

Field	Value
Publication number	US-2020055432-A1
Application number	US-201716486685-A
Country	US
Kind code	A1
Filing date	Aug 31, 2017
Priority date	Feb 17, 2017
Publication date	Feb 20, 2020
Grant date	—

Abstract

An armrest device is provided in which deformation of an armrest frame is suppressed. The armrest device includes an armrest frame, and a bracket by which the armrest frame is rotatably supported. The armrest frame has, at lengthwise extremities thereof, a base end closer to an axis of rotation and a distal end farther from the axis of rotation. The bracket includes a deformation restriction portion provided protrusively toward the armrest frame, the deformation restriction portion being a portion which faces toward the armrest frame in a direction of the axis of rotation of the armrest frame and which is located on one side of the axis of rotation on which the base end is located, when an armrest is in a use position.

First claim

1 . An armrest device comprising an armrest frame and a support member by which the armrest frame is rotatably supported,
wherein the armrest frame has, at lengthwise extremities thereof, a base end closer to an axis of rotation and a distal end farther from the axis of rotation, and wherein at least one of the armrest frame and the support member includes a first restriction portion provided protrusively toward another of the armrest frame and the support member, the first restriction portion being a portion at which the armrest frame and the support member face toward each other in a direction of the axis of rotation of the armrest frame and which is located on one side of the axis of rotation on which the base end is located, when an armrest is in a use position.

2 . The armrest device according to claim 1 , wherein when the armrest is in the use position, the first restriction portion is so located as to overlap a straight line produced between the axis of rotation and the base end of the armrest frame as viewed in the direction of the axis of rotation.

3 . The armrest device according to claim 1 , wherein the first restriction portion is provided in the support member, and wherein when the armrest is in the use position, the first restriction portion is so located as to overlap the base end of the armrest frame as viewed in the direction of the axis of rotation.

4 . The armrest device according to claim 1 , wherein the armrest frame includes a main frame and a reinforcing frame having a thickness greater than a thickness of the main frame, the reinforcing frame being so located as to lie over a portion of the main frame closer to the base end.

5 . The armrest device according to claim 4 , wherein the reinforcing frame is located on a side of the main frame which is opposite to another side of the main frame on which the support member is located, and
wherein the main frame and the reinforcing frame are joined together at portions thereof on the one side of the axis of rotation on which the base end is located.

6 . The armrest device according to claim 5 , wherein the main frame includes a first base portion, a first sidewall portion extending from an end of the first base portion closer to the base end on a side of the first base portion which is opposite to another side of the first base portion on which the support member is located, and a first folded portion extending from an end of the first sidewall portion and having a distal end portion thereof folded toward the first base portion,
wherein the reinforcing frame includes a second base portion so provided as to lie over the first base portion, a second sidewall portion extending from an end of the second base portion closer to the base end on a side of the second base portion which is opposite to another side of the second base portion on which the support member is located, the second sidewall portion being so provided as to lie over the first sidewall portion, and a second folded portion extending from an end of the second sidewall portion and having a distal end portion thereof folded toward the second base portion, the second folded portion being so provided as to lie over the first folded portion, and wherein the reinforcing frame and the main frame are joined together at overlying portions of the first folded portion and the second folded portion.

7 . The armrest device according to claim 6 , wherein the distal end portions of the first folded portion and the second folded portion are located with a gap left between each of the distal end portions and the second sidewall portion.

8 . The armrest device according to claim 1 , wherein the armrest frame includes a protruding portion provided protrusively toward the support member,
wherein the support member includes, in addition to the first restriction portion, a second restriction portion protruding toward the armrest frame, contactable with the protruding portion, and thereby restricting rotation of the armrest frame, and wherein the first restriction portion and the second restriction portion are formed as a continuous projection.

9 . The armrest device according to claim 8 , wherein the armrest frame includes a main frame and a reinforcing frame so located as to lie over a portion of the main frame closer to the base end on a side of the main frame which is opposite to another side of the main frame on which the support member is located, the reinforcing frame having a thickness greater than a thickness of the main frame, and
wherein the protruding portion is provided in the reinforcing frame, extending through a through hole formed in the main frame to a side of the main frame on which the support member is located.

10 . The armrest device according to claim 1 , wherein the support member is a bracket by which the armrest frame is mountable to a frame of a seat, and
wherein the first restriction portion is provided in the bracket.

11 . The armrest device according to claim 1 , further comprising a shaft rotatable relative to the support member,
wherein the armrest frame includes a main frame and a reinforcing frame fixed to the shaft, the reinforcing frame being so provided as to lie over the main frame in contact with the main frame, and wherein the reinforcing frame includes a portion at which the reinforcing frame and the main frame face toward each other in the direction of the axis of rotation and part of which is separate from the main frame.

12 . The armrest device according to claim 11 , wherein a distance between the part of the reinforcing frame and the main frame is greater than a thickness of the main frame.

13 . The armrest device according to claim 11 , wherein a distance between the part of the reinforcing frame and the main frame is greater than a thickness of the reinforcing frame.

14 . The armrest device according to claim 11 , wherein a distance between the part of the reinforcing frame and the main frame is greater than a sum of a thickness of the main frame and a thickness of the reinforcing frame.

15 . The armrest device according to claim 11 , wherein the reinforcing frame includes an insertion hole through which a bolt for fastening the reinforcing frame to the shaft is disposed, and a flange portion provided at a circumferential edge of the insertion hole protrusively in a direction along the axis of rotation, and
wherein a distal end of the flange portion is in contact with the main frame.

16 . The armrest device according to claim 11 , further comprising a spacer disposed between the part of the reinforcing frame and the main frame.

17 . The armrest device according to claim 16 , wherein the spacer is in contact with the main frame and with the reinforcing frame in the direction of the axis of rotation.

18 . The armrest device according to claim 16 , wherein the reinforcing frame has an engageable hole in which a projection provided at an end of the shaft is engageable, and
wherein the spacer includes a receptacle hole or receptacle recess that receives the projection.

19 . The armrest device according to claim 16 , wherein the spacer includes a through hole through which a bolt for fastening the reinforcing frame to the shaft is disposed.

20 . The armrest device according to claim 16 , wherein the spacer contains plastic or rubber.

Assignees

• Ts Tech Co Ltd

Inventors

• Nonaka Hidetsune

Classifications

• B60N2/767

  Angle adjustment · CPC title

• B60N2/753 Primary

  movable to an inoperative position · CPC title