Vehicular seat slide device

Patent metadata

Field	Value
Publication number	US-9855867-B2
Application number	US-201415021089-A
Country	US
Kind code	B2
Filing date	Oct 24, 2014
Priority date	Oct 25, 2013
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

A vehicular seat slide device includes a lower rail, an upper rail supporting a seat above, a lock lever supported by the upper rail and configured to restrict the relative movement of the upper rail by engaging with the lower rail, a spring attached to the upper rail and biasing in such a manner that the lock lever engages with the lower rail. The spring includes a locking portion inserted in a locking hole provided at an upper edge of the upper rail and opening to a side surface of the upper rail, the locking portion is insertable into the locking hole by elastically deforming the spring body towards an inner side relative to the locking hole, the locking portion is restricted from being detached from the locking hole by being locked at a peripheral edge of the locking hole due to recovery of the elastic deformation.

First claim

The invention claimed is:

1. A vehicular seat slide device comprising:
a lower rail;
an upper rail provided to be movable relative to the lower rail along a long-side direction of the lower rail and configured to support a seat above;
a lock lever supported by the upper rail, and configured to restrict the relative movement of the upper rail by engaging with the lower rail; and
a spring attached to the upper rail, and biasing in such a manner that the lock lever engages with the lower rail;
the spring including:
a spring body; and
a locking portion inserted in a locking hole provided at an upper edge of the upper rail and opening to a side surface of the upper rail, the locking portion being insertable into the locking hole by elastically deforming the spring body towards an inner side relative to the locking hole, the locking portion restricted from being detached from the locking hole in an insertion direction by being locked at a peripheral edge of the locking hole due to recovery of the elastic deformation, wherein the spring includes an arc configuration from a connected portion to an open end.

2. The vehicular seat slide device according to claim 1 , further comprising:
an operation handle operated to release the engagement of the lock lever and the lower rail with each other, wherein
the spring includes a first biasing portion biasing the lock lever in such a manner that the engagement of the lock lever and the lower rail with each other is maintained,
the spring includes a second biasing portion biasing the operation handle in such a manner that the engagement of the lock lever and the lower rail with each other is maintained, and
the first biasing portion and the second biasing portion are connected to each other via the locking portion including a continuously bent configuration.

3. The vehicular seat slide device according to claim 2 , wherein a direction in which the first biasing portion biases the lock lever and a direction in which the second biasing portion biases the operation handle are opposite to each other.

4. The vehicular seat slide device according to claim 1 , wherein
the spring includes a bent portion provided at a position corresponding to the peripheral edge of the locking hole, the bent portion being bent towards the insertion direction to the locking hole.

5. The vehicular seat slide device according to claim 1 , wherein the locking portion includes an arc configuration.

6. A vehicular seat slide device comprising:
a lower rail;
an upper rail provided to be movable relative to the lower rail along a long-side direction of the lower rail and configured to support a seat above;
a lock lever supported by the upper rail, and configured to restrict the relative movement of the upper rail by engaging with the lower rail; and
a spring attached to the upper rail and biasing in such a manner that the lock lever engages with the lower rail;
the spring including:
an attachment portion attached to the upper rail;
a biasing portion arranged at a predetermined position of the lock lever and biasing in such a manner that the lock lever engages with the lower rail; and
contact portion being between the attachment portion and the biasing portion, and being in contact with an inner surface of the upper rail, wherein
the spring includes two leg portions formed by a wire material that is double-folded and the spring is attached to the upper rail in such a manner that a width direction of each of the leg portions matches a width direction of the upper rail,
the contact portions face in the width direction of each of the leg portions, and the contact portions are provided to project in the width direction and are in contact with both side walls of the upper rail, and
a width of the contact portions facing in the width direction of each of the leg portions before being attached to the upper rail is set to be larger than an opening width of the upper rail, wherein the spring includes an arc configuration from a connected portion to an open end.

7. A vehicular seat slide device comprising:
a lower rail;
an upper rail provided to be movable relative to the lower rail along a long-side direction of the lower rail and configured to support a seat above;
a lock lever supported by the upper rail, and configured to restrict the relative movement of the upper rail by engaging with the lower rail; and
a spring attached to the upper rail and biasing in such a manner that the lock lever engages with the lower rail;
the spring including:
an attachment portion attached to the upper rail;
a biasing portion arranged at a predetermined position of the lock lever and biasing in such a manner that the lock lever engages with the lower rail; and
a contact portion being between the attachment portion and the biasing portion, and being in contact with an inner surface of the upper rail, wherein
the spring includes a spring body, and
the attachment portion is inserted in a locking hole provided at an upper edge of the upper rail and opening to a side surface of the upper rail, the attachment portion is insertable into the locking hole by elastically deforming the spring body towards an inner side relative to the locking hole, the attachment portion is locked at a peripheral edge of the locking hole due to recovery of the elastic deformation, wherein the spring includes an arc configuration from a connected portion to an open end so that the attachment portion is restricted from being detached from the locking hole.

Assignees

• Aisin Seiki

Inventors

• Satoh Takanori
• Kojima Yasuhiro

Classifications

• B60N2/085

  about a transversal axis · CPC title

• B60N2/0715

  C or U-shaped · CPC title

• B60N2/0818

  inside the rail · CPC title

• B60N2/0705 Primary

  omega-shaped · CPC title

• B60N2/0837 Primary

  pivoting · CPC title