Sliding device

Patent metadata

Field	Value
Publication number	US-2018257514-A1
Application number	US-201815912871-A
Country	US
Kind code	A1
Filing date	Mar 6, 2018
Priority date	Mar 7, 2017
Publication date	Sep 13, 2018
Grant date	—

Abstract

Provided is a sliding device for a vehicle seat. The device includes a fixed rail, a movable rail, a lock portion, an operating lever, a first locking protrusion, and a lock lever. When a first contact surface among side faces of the first locking protrusion and a second contact surface among side faces of a second locking protrusion of the lock lever are in contact with each other, the operating lever is retained in one of a first position or a second position, and when a protruding-direction end of the first locking protrusion and a protruding-direction end of the second locking protrusion are in contact with each other, the operating lever is retained in the other of the first position or the second position.

First claim

What is claimed is:

1 . A sliding device that supports a vehicle seat in a slidable manner, the sliding device comprising:
a fixed rail; a movable rail that is slidably mounted to the fixed rail and onto which the vehicle seat is fixed; a lock portion that is displaceable between a locking position restricting sliding of the movable rail and a non-locking position allowing the movable rail to slide; an operating lever that displaces the lock portion, the operating lever being rotationally displaced between a first position placing the lock portion in the non-locking position and a second position placing the lock portion in the locking position; a first locking protrusion protruding in a direction substantially perpendicular to a rotation center axis of the operating lever, the first locking protrusion being rotationally displaced about the rotation center axis simultaneously with the operating lever; and a lock lever comprising a rotating shaft parallel to the rotation center axis of the operating lever, the lock lever comprising a second locking protrusion at a position radially offset from the rotating shaft, wherein the second locking protrusion protrudes substantially in a direction intersecting with the radial axis and with the rotation center axis and being rotationally displaced about an axis of the rotating shaft, wherein assuming: that directions parallel to rotating directions of the operating lever are referred to as operating directions; that a side face on one side in the operating directions among side faces of the first locking protrusion is referred to as a first contact surface; and that a side face on one side along the radial axis among side faces of the second locking protrusion is referred to as a second contact surface, the sliding device is configured such that, when the first contact surface and the second contact surface are in contact with each other, the operating lever is retained in one of the first position or the second position, and such that, when a protruding-direction end of the first locking protrusion and a protruding-direction end of the second locking protrusion are in contact with each other, the operating lever is retained in the other of the first position or the second position.

2 . The sliding device according to claim 1 ,
wherein the second contact surface is a curved surface that is curved substantially along an arc centered on a rotation center axis of the rotating shaft.

3 . The sliding device according to claim 1 ,
wherein the protruding-direction end of the first locking protrusion is a curved surface that is curved substantially along an arc centered on the rotation center axis of the operating lever.

4 . The sliding device according to claim 3 ,
wherein a part of the protruding-direction end of the second locking protrusion in contact with the protruding-direction end of the first locking protrusion substantially corresponds to a virtual tangential plane with respect to the protruding-direction end of the first locking protrusion at the part.

Assignees

• Toyota Boshoku Kk

Inventors

• Taniguchi Kosuke

Classifications

• B60N2/0825

  outside the rail · CPC title

• B60N2/0818

  inside the rail · CPC title

• B60N2/0705 Primary

  omega-shaped · CPC title

• B60N2002/952

  characterised by details of the locking system · CPC title

• B60N2/085 Primary

  about a transversal axis · CPC title