Cancel cam

Patent metadata

Field	Value
Publication number	US-2022402425-A1
Application number	US-202217895062-A
Country	US
Kind code	A1
Filing date	Aug 25, 2022
Priority date	Mar 2, 2020
Publication date	Dec 22, 2022
Grant date	—

Abstract

A cancel cam includes an annular member, a cam wall, and at least one reinforcing rib. The annular member is rotatable integrally with a steering shaft about a rotation axis and includes an outer peripheral portion, an inner peripheral portion, and a first surface. The cam wall extends from the outer peripheral portion in an axial direction and extends along the outer peripheral portion in a circumferential direction. The at least one reinforcing rib extends from the cam wall toward the inner peripheral portion and couples the cam wall to the annular member. The cam wall has a first axial length defined from the first surface in the axial direction. The inner peripheral portion has a second axial length defined from the first surface in the axial direction. The second axial length is shorter than the first axial length.

First claim

What is claimed is:

1 . A cancel cam comprising:
an annular member comprising an outer peripheral portion, an inner peripheral portion, and a first surface, the annular member being rotatable integrally with a steering shaft about a rotation axis, the first surface facing in an axial direction parallel to the rotation axis; a cam wall configured to return a turn signal switch from an operating position to a neutral position, the cam wall extending from the outer peripheral portion in the axial direction and extending along the outer peripheral portion in a circumferential direction; and at least one reinforcing rib extending from the cam wall to the inner peripheral portion and coupling the cam wall to the annular member, the cam wall having a first axial length defined from the first surface in the axial direction, the inner peripheral portion having a second axial length defined from the first surface in the axial direction, and the second axial length being shorter than the first axial length.

2 . The cancel cam according to claim 1 , wherein
the annular member does not have a portion protruding in the axial direction from the first surface in the inner peripheral portion.

3 . The cancel cam according to claim 1 , wherein
the at least one reinforcing rib extends from the cam wall toward the inner peripheral portion and couples the cam wall to the first surface.

4 . The cancel cam according to claim 1 , wherein
the at least one reinforcing rib comprises an inclined surface, the inclined surface extending from the cam wall toward the first surface and being inclined with respect to the rotation axis.

5 . The cancel cam according to claim 1 , wherein
the at least one reinforcing rib has a third axial length defined from the first surface in the axial direction, and the second axial length is shorter than the third axial length.

6 . The cancel cam according to claim 5 , wherein
the third axial length is equal to or shorter than the first axial length.

7 . The cancel cam according to claim 5 , wherein
the at least one reinforcing rib has a radial length defined from the cam wall in a radial direction, and the radial length is shorter than the third axial length.

8 . The cancel cam according to claim 1 , wherein
the at least one reinforcing rib comprises a plurality of reinforcing ribs.

9 . The cancel cam according to claim 1 , wherein
the cam wall comprises a first circumferential end and a second circumferential end, and the cam wall extends from the first circumferential end to the second circumferential end in the circumferential direction.

10 . The cancel cam according to claim 9 , wherein
the at least one reinforcing rib comprises a first reinforcing rib and a second reinforcing rib, the first reinforcing rib being coupled to the first circumferential end, the second reinforcing rib being coupled to the second circumferential end.

11 . The cancel cam according to claim 10 , wherein
the at least one reinforcing rib comprises an intermediate reinforcing rib disposed between the first reinforcing rib and the second reinforcing rib, and a thickness of at least one of the first reinforcing rib and the second reinforcing rib is greater than a thickness of the intermediate reinforcing rib.

Assignees

• Furukawa Electric Co Ltd
• Furukawa Automotive Systems Inc

Inventors

• Tajiri Yoji

Classifications

• B60Y2306/09

  Reducing noise · CPC title

• B60Q1/42 Primary

  having mechanical automatic return to inoperative position} due to steering-wheel position {, e.g. with roller wheel control · CPC title

• B60Q1/425 Primary

  using a latching element for resetting a switching element · CPC title