Walk-in seat

Patent metadata

Field	Value
Publication number	US-9969302-B2
Application number	US-201514852324-A
Country	US
Kind code	B2
Filing date	Sep 11, 2015
Priority date	Sep 11, 2015
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

A walk-in seat includes: a lower arm; an upper arm; a reclining mechanism; a shaft, which is rotatably provided to the lower arm; an operating lever, which is rotated with interlocking with the walk-in lever that is rotated by the walk-in operation; a rotation facilitating lever, which causes the shaft and the operating lever to further rotate with interlocking with a forward tilting operation of the upper arm; a stopper lever, which is held in the shaft with a play in a rotation direction and has a stopper portion; an insertion hole, through which the stopper portion being inserted; and a restriction portion, which is provided to the upper arm and abutted against the stopper portion to restrict a forward tilting operation of the upper arm to a predetermined amount.

First claim

What is claimed is:

1. A walk-in seat comprising:
a lower arm, which is provided to a seat cushion side of a seat that is provided on a slide rail;
an upper arm, which is provided to a seat back side of the seat and provided to be tiltable with respect to the lower arm;
a reclining mechanism, which is configured to lock-and-unlock a tilting of the upper arm;
a walk-in lever, which is rotatably provided to the lower arm and rotated by a walk-in operation to cause the reclining mechanism to be unlocked;
a shaft, which is disposed in parallel with a center axis of the tilting and rotatably provided to the lower arm;
an operating lever, which is attached to the shaft to rotate together with the shaft and rotated with interlocking with the walk-in lever that is rotated by the walk-in operation;
a rotation facilitating lever, which is attached to the shaft to rotate together with the shaft and causes the shaft and the operating lever to further rotate with interlocking with a forward tilting operation of the upper arm;
a stopper lever, which is held in the shaft with a play in a rotation direction and has a stopper portion extending in a direction intersecting with a rotation plane;
an insertion hole, which is formed in the lower arm, the stopper portion being inserted through the insertion hole;
a restriction portion, which is provided to the upper arm and abutted against the stopper portion to restrict the forward tilting operation of the upper arm to a predetermined amount; and
an interlocking member, which interlocks the operating lever with a lock mechanism of the slide rail.

2. The walk-in seat according to claim 1 ,
wherein the upper arm is provided with a pressing portion that is able to press the rotation facilitating lever, and
wherein the pressing portion has:
a pressing face, which is configured to press and rotating the rotation facilitating lever; and
a holding face, which is in sliding contact with the rotation facilitating lever to prevent further rotation of the rotation facilitating lever, which has rotated by the predetermined amount, and hold a state where the rotation facilitating lever has rotated by the predetermined amount.

3. The walk-in seat according to claim 2 ,
wherein the operating lever has:
a body portion, which is attached to the shaft;
a fastening portion, to which the interlocking member is fastened; and
a pressing arm portion, which is pressed against the walk-in lever, and
wherein the pressing arm portion has:
an arm portion, which is extending in a direction away from the lower arm;
a facing portion, which is bent from the arm portion and faces the lower arm; and
a pressing portion, which is bent from the facing portion and extending in a direction approaching the lower arm and which is pressed by the walk-in lever.

4. The walk-in seat according to claim 1 ,
wherein the operating lever has:
a body portion, which is attached to the shaft;
a fastening portion, to which the interlocking member is fastened; and
a pressing arm portion, which is pressed against the walk-in lever, and
wherein the pressing arm portion has:
an arm portion, which is extending in a direction away from the lower arm;
a facing portion, which is bent from the arm portion and faces the lower arm; and
a pressing portion, which is bent from the facing portion and extending in a direction approaching the lower arm and which is pressed by the walk-in lever.

5. The walk-in seat according to claim 2 ,
wherein the lower arm has a first lower arm and a second lower arm disposed on a side closer to an upper arm than the first lower,
wherein the stopper lever is disposed between the first lower arm and the second lower arm, and
wherein the stopper portion is projected to the outside through the insertion hole formed in the second lower arm and is able to be abutted against the restriction portion.

6. The walk-in seat according to claim 1 ,
wherein the lower arm has a first lower arm and a second lower arm disposed on a side closer to an upper arm than the first lower,
wherein the stopper lever is disposed between the first lower arm and the second lower arm, and
wherein the stopper portion is projected to the outside through the insertion hole formed in the second lower arm and is able to be abutted against the restriction portion.

Assignees

• Shiroki Corp

Inventors

• Higashi Nobumasa
• Kumamoto Munetomo

Classifications

• B60N2/20 Primary

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

• B60N2/3011

  the back-rest being hinged on the cushion, e.g. "portefeuille movement" · CPC title

• B60N2/2356 Primary

  with internal pawls · CPC title

• B60N2/12

  slidable and tiltable · CPC title