Seat slide device for vehicles

Patent metadata

Field	Value
Publication number	US-10272802-B2
Application number	US-201615771145-A
Country	US
Kind code	B2
Filing date	Oct 28, 2016
Priority date	Nov 2, 2015
Publication date	Apr 30, 2019
Grant date	Apr 30, 2019

Abstract

A seat slide device for vehicles includes a lower rail, an upper rail, a lock mechanism, a spring member, and an unlocking handle. The upper rail is supported in a slidable manner by the lower rail. The lock mechanism is provided within the upper rail and restricts the movement of the upper rail relative to the lower rail. The spring member is provided within the upper rail. The unlocking handle is operated against the pressing force of the spring member to remove restrictions on the movement of the upper rail imposed by the lock mechanism. The upper rail has inner walls and outer walls. The inner walls have engagement holes formed through the inner walls in the width direction. The spring member has engagement sections inserted through and engaged with the engagement holes. The engagement sections face the outer walls in the width direction.

First claim

The invention claimed is:

1. A vehicle seat slide device comprising:
a lower rail fixed to a vehicle floor;
an upper rail supported by the lower rail in a slidable manner, wherein the upper rail supports a seat;
a lock mechanism arranged in the upper rail, wherein the lock mechanism restricts movement of the upper rail relative to the lower rail;
a spring member arranged in the upper rail; and
a cancellation handle operated against a biasing force of the spring member to cancel the movement restriction of the upper rail imposed by the lock mechanism, wherein
the upper rail includes two inner walls that are arranged next to each other in a widthwise direction and two outer walls that respectively extend from lower ends of the two inner walls and are located at an outer side of the two inner walls in the widthwise direction,
each of the two inner walls includes an engagement hole extending through the inner wall in the widthwise direction, and
the spring member includes two engagement portions inserted through and engaged with the engagement holes, wherein each of the engagement portions faces a corresponding one of the outer walls in the widthwise direction.

2. The vehicle seat slide device according to claim 1 , wherein the lower rail includes a downwardly extending wall arranged between the inner wall and the outer wall of the upper rail that are adjacent in the widthwise direction and located above the engagement portion of the spring member.

3. The vehicle seat slide device according to claim 1 , wherein
each of the outer walls of the upper rail includes an inclined portion that extends upward while being inclined inward in the widthwise direction, and
the engagement portion of the spring member is located downward relative to an upper end of the inclined portion.

4. The vehicle seat slide device according to claim 1 , wherein the spring member includes an open end.

5. The vehicle seat slide device according to claim 1 , wherein an opening end of the engagement hole at an inner side in the widthwise direction includes a tapered portion that widens toward the inner side in the widthwise direction.

Assignees

• Aisin Seiki

Inventors

• Matsufuji Tomio
• Hattori Takashi
• Taniguchi Kosuke

Classifications

• B60N2/0818

  inside the rail · CPC title

• B60N2/08

  characterised by the locking device · CPC title

• B60N2/0843

  about a longitudinal axis · CPC title

• B60N2/0715

  C or U-shaped · CPC title

• B60N2/0806

  with pin alignment systems, e.g. with at least one of a plurality of locking pins always aligned w.r.t. at least one of a plurality of pin-receiving elements · CPC title