Vehicle ignition system

Patent metadata

Field	Value
Publication number	US-10501050-B2
Application number	US-201715638958-A
Country	US
Kind code	B2
Filing date	Jun 30, 2017
Priority date	Jun 30, 2017
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

A vehicle ignition system includes an ignition cylinder housing defining an exterior portion, an interior portion and a channel extending at least partially through the interior portion. An ignition cylinder is at least partially received by and adjustable relative to the ignition cylinder housing. The ignition cylinder includes an elongate body defining an exterior portion and an interior portion. A cam member is at least partially received in the channel of the ignition cylinder housing and includes a clutch disposed adjacent to and engaging a portion of the ignition cylinder. A locking mechanism cooperates with the ignition cylinder housing and ignition cylinder includes a locking member having a projection extending therefrom that releasably engages a portion of the ignition cylinder housing when the locking mechanism is placed in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing.

First claim

The invention claimed is:

1. A vehicle ignition system comprising:
an ignition cylinder housing defining an exterior portion, an interior portion and a channel extending at least partially through the interior portion;
an ignition cylinder at least partially received by and adjustable relative to the ignition cylinder housing, the ignition cylinder including an elongate body defining an exterior portion and an interior portion;
a cam member at least partially received in the channel of the ignition cylinder housing, the cam member including a clutch disposed adjacent to and engaging a portion of the ignition cylinder; and
a locking mechanism cooperating with at least one of the ignition cylinder housing and ignition cylinder, wherein the locking mechanism is adjustable between a first position and at least one second position,
wherein the locking mechanism includes a locking member having a projection extending therefrom releasably engaging a portion of the ignition cylinder housing when the locking mechanism is placed in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing,
wherein the locking member extends between the clutch and cam member body to restrict movement of the ignition cylinder and ignition cylinder housing when the locking mechanism is adjustably positioned from the first position to the at least one second position.

2. The vehicle ignition system of claim 1 wherein the locking mechanism further comprises:
a pivot mechanism adjustably securing the locking member to the exterior portion of the ignition cylinder housing; and
a biasing member cooperating with the pivot mechanism and locking member to adjust the locking member between a first position and at least one second position.

3. The vehicle ignition system of claim 2 further comprising an aperture extending through the ignition cylinder housing between the exterior portion and the interior portion and sized to receive the projection of the locking member therethrough.

4. The vehicle ignition system of claim 3 wherein the clutch includes a slot formed therein that is positioned to at least partially align with the aperture in the ignition cylinder housing.

5. The vehicle ignition system of claim 4 wherein the projection of the locking member releasably engages the slot in the clutch through the aperture in the ignition cylinder housing when the locking mechanism is in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing.

6. The vehicle ignition system of claim 1 wherein the locking mechanism further comprises:
a pivot mechanism adjustably securing the locking member to the interior portion of the ignition cylinder; and
a biasing member cooperating with the pivot mechanism and locking member to adjust the locking member between a first position and at least one second position.

7. The vehicle ignition system of claim 6 further comprising an aperture extending through the ignition cylinder between the exterior portion and the interior portion and sized to receive the projection of the locking member therethrough.

8. The vehicle ignition system of claim 7 wherein the projection of the locking member releasably engages a slot in the ignition cylinder housing through the aperture in the ignition cylinder housing when the locking mechanism is in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing.

9. The vehicle ignition system of claim 1 wherein the ignition cylinder further comprises:
a receiver disposed in the interior portion of the ignition cylinder;
a slot formed in the first end of the ignition cylinder in communication with the receiver; and
a key configured for insertion through the slot to engage the receiver,
wherein the interaction of the key and receiver allows adjustment of the ignition cylinder relative to the ignition cylinder housing.

10. A vehicle ignition system comprising:
an ignition cylinder housing defining an exterior portion, an interior portion and a channel extending at least partially through the interior portion;
an ignition cylinder at least partially received by and adjustable relative to the ignition cylinder housing, the ignition cylinder including an elongate body defining an exterior portion and an interior portion;
a cam member at least partially received in the channel of the ignition cylinder housing, the cam member including a clutch disposed adjacent to and engaging a portion of the ignition cylinder; and
a locking mechanism cooperating with the ignition cylinder housing and ignition cylinder adjustable between a first position and at least one second position,
wherein the locking mechanism includes a locking member adjustably secured to the interior portion of the ignition cylinder housing, the locking member including a projection extending therefrom releasably engaging a portion of the ignition cylinder housing when the locking mechanism is placed in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing,
wherein the locking member extends between the clutch and cam member body to restrict movement of the ignition cylinder and ignition cylinder housing when the locking mechanism is adjustably positioned from the first position to the at least one second position.

11. The vehicle ignition system of claim 10 wherein the locking mechanism further comprises:
a pivot mechanism adjustably securing the locking member to the interior portion of the ignition cylinder;
a biasing member cooperating with the pivot mechanism and locking member to adjust the locking member between a first position and at least one second position; and
a weight secured to a portion of the locking member, wherein the weight is positioned on an opposing portion of the locking member from the projection.

12. The vehicle ignition system of claim 11 further comprising an aperture extending through the ignition cylinder between the exterior portion and the interior portion and sized to receive the projection of the locking member therethrough, wherein the projection of the locking member releasably engages a slot in the ignition cylinder housing through the aperture in the ignition cylinder when the locking mechanism is in the at least one second position to prevent adjustment of the ignition cylinder relative to the ignition cylinder housing.

13. The vehicle ignition system of claim 10 wherein the ignition cylinder further comprises:
a receiver disposed in the interior portion of the ignition cylinder;
a slot formed in the first end of the ignition cylinder in communication with the receiver; and
a key configured for insertion through the slot to engage the receiver,
wherein the interaction of the key and receiver allows adjustment of the ignition cylinder relative to the ignition cylinder housing.

14. The vehicle ignition system of claim 1 wherein the ignition cylinder further comprises:
a receiver disposed in the interior portion of the ignition cylinder;
a slot formed in the first end of the ignition cylinder in communication with the receiver; and
a key configured for insertion through the slot to engage the receiver,
wherein the interaction of the key and receiver allows adjustment of the ignition cylinder relative to the ignition cylinder housing.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Konchan Jeffrey L
• Lange Richard J

Classifications

• B60R25/02123 Primary

  using an axially slidable lock cylinder · CPC title

• B60R25/248

  Electronic key extraction prevention · CPC title

• B60R25/2063

  Ignition switch geometry · CPC title

• H01H27/063 Primary

  wherein the switch cannot be moved to a third position, e.g. start position, unless the preceding movement was from a first position to a second position, e.g. ignition position · CPC title

• B60R25/066

  Locking of hand actuated control actuating means · CPC title