Folding seat actuator

Patent metadata

Field	Value
Publication number	US-2016355104-A1
Application number	US-201514946439-A
Country	US
Kind code	A1
Filing date	Nov 19, 2015
Priority date	Jun 2, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A folding seat actuator may include a wire configured to be coupled to a seat back or a seat cushion, a coiling gear connected to the wire configured to fold a seat by winding the wire around the coiling gear when the coiling gear is rotated, a reduction gear interlocked with the coiling gear to rotate the coiling gear, a power source for providing rotational force to the reduction gear, and an elastic body for providing rotational force to the reduction gear such that the reduction gear is restored to a set position after rotating by the power source.

First claim

What is claimed is:

1 . A folding seat actuator comprising:
a wire configured to be coupled to a seat back or a seat cushion; a coiling gear connected to the wire configured to fold a seat by winding the wire around the coiling gear when the coiling gear is rotated; a reduction gear interlocked with the coiling gear to rotate the coiling gear; a power source for providing rotational force to the reduction gear; and an elastic body for providing rotational force to the reduction gear such that the reduction gear is restored to a set position after rotating by the power source.

2 . The folding seat actuator of claim 1 , wherein the reduction gear has external gear teeth formed along an outer peripheral portion thereof to be engaged with the power source, and an internal gear protruding from a center thereof to be engaged with an outer peripheral portion of the coiling gear.

3 . The folding seat actuator of claim 1 , wherein the reduction gear has a first surface groove formed on a first surface thereof such that the elastic body is inserted into the first surface groove, both ends of the elastic body are respectively coupled to the reduction gear and a housing for supporting rotation of the reduction gear, and the elastic body is compressed when the reduction gear is normally rotated by the power source while reversely rotating the reduction gear when the elastic body is restored.

4 . The folding seat actuator of claim 2 , wherein the elastic body is coupled to a first surface of the reduction gear, the reduction gear has a second surface groove formed on a second surface thereof such that the internal gear is inserted into the second surface groove, and an end of the internal gear is inserted and fixed into the second surface groove so that the internal gear rotates along with the reduction gear.

5 . The folding seat actuator of claim 4 , wherein a plurality of flanges radially protrudes from the end of the internal gear, and the flanges are inserted and fixed into the second surface groove.

6 . The folding seat actuator of claim 1 , further comprising a housing for supporting rotation of the reduction gear and the coiling gear, wherein the coiling gear and the housing further include stoppers coming into contact with each other so as to limit the rotation of the coiling gear.

7 . The folding seat actuator of claim 1 , wherein the elastic body comprises a spiral spring.

Assignees

• Hyundai Motor Co Ltd
• Daedong Movel System Co Ltd

Inventors

• Kim Young Dong
• Kim Sang Ho
• Lee Sang Soo
• Kim Yun Soo
• Chang Myoung Soo
• Joo Yeong Sik
• Yang Heung Suk
• Kang Young Gu
• Kim Young Bae

Classifications

• B60N2/36

  into a loading platform {(B60N2/065 takes precedence)} · CPC title

• B60N2/30 Primary

  Non-dismountable {or dismountable} seats storable in a non-use position, e.g. foldable spare seats · CPC title

• B60N2/2213

  Gear wheel driven mechanism (B60N2/2231, B60N2/225 take precedence) · CPC title

• B60N2002/0236

  Operations & Transport · mapped topic

• B60N2/0232 Primary

  Operations & Transport · mapped topic