Secondary park lock actuator

Patent metadata

Field	Value
Publication number	US-10865879-B2
Application number	US-201816047222-A
Country	US
Kind code	B2
Filing date	Jul 27, 2018
Priority date	Jul 27, 2018
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

In at least some implementations, a park lock release actuator includes a housing, a drive member and a retainer. The drive member is received at least partially within the housing for rotation about an axis relative to the housing between a first position and a second position. The retainer has a first position in which rotation of the drive member is prevented and a second position in which rotation of the drive member is permitted. At least one of the retainer and the drive member moves relative to the housing in a direction different from the rotation of the drive member so that the path of motion of the retainer between the first position and second position of the retainer is different from the path of motion of the drive member between the first position and second position of the drive member.

First claim

The invention claimed is:

1. A park lock release actuator, comprising:
a housing;
a drive member received at least partially within the housing for rotation about an axis relative to the housing between a first position and a second position; and
a retainer having a first position in which rotation of the drive member is prevented and a second position in which rotation of the drive member is permitted, and wherein at least one of the retainer and the drive member moves relative to the housing in a direction different from the rotation of the drive member so that the path of motion of the retainer between the first position and second position of the retainer is different from the path of motion of the drive member between the first position and second position of the drive member, wherein the retainer is fixed to the drive member, and the drive member is movable axially relative to the housing.

2. The actuator of claim 1 wherein the drive member has a tool engaging feature coaxial with the axis of rotation of the drive member.

3. The actuator of claim 1 wherein the retainer moves relative to the drive member.

4. The actuator of claim 3 wherein the retainer moves one of axially or radially or rotates/pivots relative to the drive member.

5. The actuator of claim 1 wherein the retainer has a cam surface that displaces the retainer from the first position to the second position as the drive member is rotated.

6. The actuator of claim 1 wherein the retainer is fixed to the drive member, and the housing includes a cam surface that engages the retainer to, as the drive member is rotated, drive the drive member in said direction different from rotation of the drive member.

7. The actuator of claim 1 which also comprises a cable having a conduit and a core received within the conduit, and the core is connected to the drive member so that the core is moved relative to the conduit when the drive member rotates relative to the housing.

8. The actuator of claim 1 which also comprises a biasing member that opposes movement of at least one of the retainer and the drive member in said direction different from rotation.

9. The actuator of claim 8 wherein the retainer is fixed to the drive member and the biasing member engages the drive member.

10. The actuator of claim 8 wherein the retainer moves relative to the drive member and the biasing member acts on the retainer.

11. The actuator of claim 1 wherein the retainer is carried by the housing and the drive member includes a stop surface selectively engageable with the retainer when the retainer is in the first position and the drive member is in the first position.

12. The actuator of claim 11 wherein the drive member includes a second stop surface engageable with the retainer when the retainer is in the first position and the drive member is in the second position.

13. A park lock release actuator, comprising:
a housing;
a drive member received at least partially within the housing for rotation about an axis relative to the housing between a first position and a second position; and a retainer having a first position in which rotation of the drive member is prevented and a second position in which rotation of the drive member is permitted, and wherein at least one of the retainer and the drive member moves relative to the housing in a direction different from the rotation of the drive member so that the path of motion of the retainer between the first position and second position of the retainer is different from the path of motion of the drive member between the first position and second position of the drive member,
wherein the housing includes a first void in which the retainer is received when the drive member is in its first position, and a second void in which the retainer is received when the drive member is in its second position.

14. A park lock release actuator, comprising:
a housing;
a drive member received at least partially within the housing for rotation about an axis relative to the housing between a first position and a second position, and the drive member has a tool engaging feature coaxial with the axis of rotation of the drive member; and
a retainer having a first position in which rotation of the drive member is prevented and a second position in which rotation of the drive member is permitted, and wherein at least one of the retainer and the drive member moves relative to the housing in a direction different from the rotation of the drive member so that the path of motion of the retainer between the first position and second position of the retainer is different from the path of motion of the drive member between the first position and second position of the drive member, wherein the retainer is carried by the drive member.

15. The actuator of claim 14 wherein the retainer is carried by the housing.

Assignees

• Dura Operating Llc

Inventors

• Legault David
• Sayeau John

Classifications

• F16H63/3491 Primary

  Emergency release or engagement of parking locks or brakes · CPC title

• F16H61/36

  with at least one movement being transmitted by a cable · CPC title

• F16C2361/65

  Gear shifting, change speed gear, gear box · CPC title

• F16C1/18 Primary

  in which the end portion of the flexible member is laid along a curved surface of a pivoted member · CPC title

• F16C1/14

  Construction of the end-piece of the flexible member; Attachment thereof to the flexible member · CPC title