ASSEMBLY COMPRISING A FIRST CAM CARRIER

• US 20140318304A1
• Filed: 08/16/2012
• Published: 10/30/2014
• Est. Priority Date: 10/05/2011
• Status: Active Grant

• Current Assignee: ThyssenKrupp Presta AG (Thyssenkrupp AG)
• Original Assignee: ThyssenKrupp Presta AG (Thyssenkrupp AG)
• Inventors: Hahn, Michael, Fleischer, Martin
• Granted Patent: US 9,308,931 B2
• Time in Patent Office: Days
• US Class Current: 74/493
• CPC Class Codes: B62D 1/184 Mechanisms for locking columns at selected positions
• CPC Class Codes: F16H 25/186 with reciprocation along the axis of oscillation

Abstract

An assembly includes a first cam carrier and at least one other cam carrier for a securing device for an adjustable steering column of a motor vehicle. Each of the cam carriers has at least one cam, and the carriers are located opposite one another so that they can rotate against one another about a rotational axis. When the first cam carrier rotates against the other cam carrier through a rotational angle about the rotational axis, the cam of the first cam carrier rests on and glides along the cam of the other cam carrier on a contact path. The contact path runs at a radial distance from the rotational axis, and the distance altering depends on the rotational angle.

Claims

1. An assembly comprising a first cam carrier and a second cam carrier for a securement device for an adjustable steering column of a motor vehicle, wherein the first and second cam carriers each comprise a cam and the first and second cam carriers are disposed opposite one another and turnably against one another about a rotational axis, and the first and second cam carriers are configured such that, upon the turning of the first cam carrier against the second cam carrier along a turning angle about the rotational axis, the cam of the first cam carrier is glidingly in contact on the cam of the second cam carrier along a contact path, wherein the contact path extends at a radial distance from the rotational axis varying as a function of the turning angle.

2. The assembly as in claim 1, wherein the cam of the first cam carrier and the cam of the second cam carrier are exclusively in the region of the contact path in contact with one another.

3. The assembly as in claim 1, wherein, viewed in the radial direction with respect to the rotational axis, the width of the contact path varies as a function of the turning angle.

4. The assembly as in claim 1, wherein even if the respective cams of the first and second cam carriers are in a relieved state, the contact path, extends on the cam of the first cam carrier, viewed in planar section along the rotational axis, parallel to the contact path on the cam of the second cam carrier.

5. The assembly as in claim 1, wherein the contact path on the respective cam of at least one of the cam carriers in contact with one another extends, viewed in a planar section along the rotational axis, orthogonally to the rotational axis.

6. The assembly as in claim 1, wherein the cams on the respective cam carriers are projections configured such that they face one another and face in the direction parallel to the rotational axis of a first one of the first and second cam carriers.

7. The assembly as in claim 6, wherein the contact path, is disposed on the surface of the cam facing the cam of a second one of the first and second cam carriers.

8. A securement device for an adjustable steering column of a motor vehicle with an assembly according to claim 1.

9. The securement device as in claim 8, wherein the cam carriers are disposed on a clamp bolt of the securement device such that they are turnable against one another about the rotational axis.

10. An adjustable steering column for a motor vehicle with a securement device according to claim 8.

11. The assembly as in claim 4, wherein even if the respective cams of the first and second cam carriers are in a relieved state, the contact path extends on the cam of the first cam carrier over its entire longitudinal extent when viewed in planar section along the rotational axis.

12. The assembly as in claim 5, wherein the contact path, cams of the first and second cam carriers in contact with one another extends over its entire longitudinal extent when viewed in a planar section along the rotational axis.

13. The assembly as in claim 7, wherein the contact path is in each instance disposed on the surface facing the cam of the second one of the first and second cam carriers.

14. The securement device as in claim 9, wherein the clamp bolt penetrates through the first and second cam carriers coaxially to the rotational axis.