Granted Patent B2

US 7,559,874 · App. 11/461,074 · Granted Jul 14, 2009

Abstract

Claims (42)

1. A shift mechanism for a transmission in a vehicle comprising:

a housing;

a shift lever carried by the housing for movement between multiple shift positions;

a key cylinder carried by the housing and operable to move between a lock position and an unlock position; and

an actuator operably connected to the key cylinder and the shift lever, the actuator capable of movement between:

a first position that prevents the shift lever from changing shift positions, and

a second position that allows the shift lever to change shift positions, and

a shift interlock linkage pivotally linked to the actuator that blocks the shift lever from changing position when the actuator is in the first position and that allows the shift lever to change position when the actuator is in the second position.

2. The shift mechanism of claim 1 wherein the actuator comprises a reciprocable rod that is reciprocable between the first actuator position and the second actuator position, and wherein the shift interlock linkage is movably connected to the actuator rod such that the shift interlock linkage is urged by the actuator rod from a blocking position to an unblocking position when the actuator rod moves from the first position to the second position and the blocking position is located to block the shift lever from changing positions and the unblocking position is located to allow the shift lever to change positions.

3. The shift mechanism of claim 1 wherein the shift lever passes through a serpentine style shift gate.

4. The shift mechanism of claim 1 wherein the shift lever is of an in-line style shift lever.

5. The shift mechanism of claim 1 wherein the actuator is located in the first position when the key cylinder is in the lock position, and the actuator maintains the first position until the key cylinder moves from the lock position to the unlock position and the actuator receives a release signal to move the actuator to the second position.

6. The shift mechanism of claim 5 wherein the release signal is generated during activation of a safety system within the vehicle.

7. The shift mechanism of claim 1 further comprising a key inhibit linkage pivotally linked to the actuator that prevents the actuator from moving from the first position to the second position while the key cylinder is in the lock position.

8. The shift mechanism of claim 7 wherein the key cylinder moves the key inhibit linkage to allow the actuator to move from the first position to the second position when the key cylinder moves from the lock position to the unlock position.

9. The shift mechanism of claim 1 further including a key inhibit linkage connected to the actuator to prevent the key cylinder from moving from the unlock position to the lock position while the actuator is in the second position.

10. The shift mechanism of claim 9 wherein the key cylinder includes a cam portion and the cam portion interacts with the key inhibit linkage to prevent the key cylinder from moving from the unlock position to the lock position while actuator is in the second position.

11. A shift mechanism for a transmission in a vehicle, comprising:

a housing;

a shift lever supported by the housing for movement between shift positions;

a key cylinder mounted on the housing and operable to move between a lock position and an unlock position; and

an actuator operably connected to the key cylinder and the shift lever, the actuator capable of movement between:

a first position that blocks the shift lever from changing shift positions and allows the key cylinder to move between the lock position and unlock position; and

a second position that allows the shift lover to change shift positions and prevents the key cylinder from moving to the lock position and

a key inhibit linkage pivotally connected to the actuator that prevents the actuator from moving from the first position to the second position while the key cylinder is in the lock position.

12. The shift mechanism of claim 11 wherein the actuator comprises a movable rod that is displaceable between the first actuator position and the second actuator position, and wherein the key cylinder moves the key inhibit linkage that allows the actuator rod to move from the first position to the second position when the key cylinder moves from the lock position to the unlock position.

13. The shift mechanism of claim 11 wherein the actuator is located in the first position when the key cylinder is in the lock position, and the actuator is maintained in the first position until the key cylinder moves from the lock position to the unlock position and the actuator receives a release signal to move the actuator to the second position.

14. The shift mechanism of claim 13 wherein the release signal is generated during application of a safety system within the vehicle.

15. The shift mechanism of claim 11 further including a shift interlock linkage connected to the actuator to block the shift lever from changing positions when the actuator is in the first position, and to allow the shift lever to change positions when the actuator is in the second position.

16. The shift mechanism of claim 15 wherein the shift interlock linkage is movably connected to the actuator such that the shift interlock linkage moves from a blocking position to an unblocking position when the actuator moves from the first position to the second position such that the blocking position is located to block the shift lever from changing positions and the unblocking position is located to allow the shift lever to change positions.

17. The shift mechanism of claim 11 wherein the key inhibit linkage is pivotally connected to a reciprocable rod of the actuator and configured to prevent the key cylinder from moving from the unlock position to the lock position while actuator is in the second position.

18. The shift mechanism of claim 17 wherein the key cylinder includes a cam portion and the cam portion interacts with the key inhibit linkage to prevent the key cylinder from moving from the unlock position to the lock position while actuator is in the second position.

19. A shift mechanism for a transmission in a vehicle, comprising:

a housing;

a shift lever supported by the housing for movement between shift positions;

a key cylinder mounted on the housing and operable to move between a lock position and an unlock position; and

an actuator operably connected to the key cylinder and the shift lever, the actuator having an actuator body that operably cooperates with a movable actuator rod that is capable of movement between:

a first position that blocks the shift lever from changing shift positions and allows the key cylinder to move between the lock position and unlock position, and

a second position that allows the shift lever to change shift positions and prevents the key cylinder from moving to the lock position;

a shift interlock linkage pivotally linked to the actuator rod at or adjacent one end of the actuator rod that moves in response to actuator rod movement with the shift interlock linkage opposing the shift lever from changing position when the actuator rod is disposed in the first position and enabling the shift lever to change positions when the actuator rod is disposed in the second position; and

a key inhibit linkage pivotally linked to the actuator rod at or adjacent an opposite end of the actuator rod that prevents the actuator rod from moving from the first position to the second position while the key cylinder is in the lock position.

20. The shift mechanism of claim 19 wherein the key cylinder further comprises a cam portion that cooperates with a projection of the key inhibit linkage that prevents the key cylinder from moving from the unlock position to the lock position when actuator rod is disposed in the second position.

Assignments (22)