Window regulator
AssigneeShiroki Corporation
InventorsAtsushi Horibe, Takeshi Nishikawa
Life of this patent
Estimating the term…
Abstract
An X arm type window regulator includes a lift arm, a lift arm bracket, an equalizer arm, and an equalizer arm bracket. The window regulator opens and closes window glass through pivotal movement of the lift arm. The lift arm has two stress-dispersing elongated protrusions provided in respective regions which are located in the vicinity of an annular protrusion provided around a through hole formed in a central portion thereof, the regions being located on the side toward a proximal end portion of the lift arm and located toward two respective edges of the lift arm. The stress-dispersing elongated protrusions have a function of dispersing stress caused by a load imposed on the distal end portion of the lift arm.
Claims7
A window regulator comprising:
- a lift arm whose proximal end portion is rotatably supported and whose distal end portion is guided by a guide of a lift arm bracket extending in a direction intersecting with a direction of opening and closing window glass, and
- an equalizer atm whose middle portion is pivotally fitted into a through hole formed in a central portion of the lift arm in such a manner that the equalizer arm and the lift arm form a shape resembling a letter X, whose distal end portion supports the lift arm bracket, and whose proximal end portion is guided by a guide of an equalizer arm bracket parallel to the guide of the lift arm bracket,
- the lift arm moving pivotally to open and close the window glass supported by the lift arm bracket,
- wherein the lift arm has a stress-dispersing protrusion formed in a region located in the vicinity of the through hole of the lift arm and on a side toward the proximal end portion.
Dependencies are inferred from the claim text.