Coupling device, in particular for a drive train of a motor vehicle, and drive device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-11892041-B2
Application number	US-202017639434-A
Country	US
Kind code	B2
Filing date	Sep 3, 2020
Priority date	Oct 1, 2019
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

A coupling device has two components which are rotatable relative to one another, a recess which is provided on the first component, and a locking element which is held movably on the second component and is movable relative to the components between a locking position in which the locking element engages in the recess and a release position in which engagement of the locking element in the recess is prevented. An actuating device is provided which is displaceable relative to the components and relative to the locking element and which has an actuating element formed from a first material, by which a movement of the locking element out of one of the positions into the other position can be effected by displacement of the actuating device. The actuating device has a main body which is formed from a second material which is different from the first material.

First claim

What is claimed is:

1. A coupling device for a vehicle, comprising:
a first component;
a second component that is rotatable about an axis of rotation relative to the first component;
at least one recess provided on the first component;
at least one blocking element, which is held movably on the second component and is movable relative to the first and second components between at least a blocking position as a first position, in which the blocking element engages in the recess and as a result prevents a relative rotation between the first and second components about the axis of rotation in at least one direction of rotation, and at least one release position as a second position, in which the blocking element is prevented from engaging in the recess, as a result of which the blocking element in the release position permits a relative rotation between the first and second components about the axis of rotation in the direction of rotation; and
at least one actuating device, which is displaceable along the axis of rotation relative to the first and second components and relative to the blocking element, the actuating device comprising
an actuating element, formed from a first material, by which a movement of the blocking element at least out of one of the positions into the other position can be brought about by displacing the actuating device, and
a basic body, which is formed from a second material different than the first material and which is connected to the actuating element, wherein at least one positioning element, by which a relative rotation between the actuating device and the second component about the axis of rotation is at least delimited, is formed by the second material,

wherein the second material is a plastic, which is injection molded onto the actuating element.

2. The coupling device according to claim 1 , wherein
the positioning element has a projection, which is formed by the second material and engages in a corresponding recess, as a result of which the relative rotation between the actuating device and the second component about the axis of rotation is at least delimited.

3. The coupling device according to claim 2 , wherein
the recess is formed directly by the second component or by a third component of the coupling device, which third component is formed separately from the second component and is rotationally conjointly connected to the second component.

4. The coupling device according to claim 1 , wherein
the positioning element has a second recess, which is delimited by the second material and in which at least one corresponding positioning part formed separately from the positioning element engages, as a result of which the relative rotation between the actuating device and the second component about the axis of rotation is at least delimited.

5. The coupling device according to claim 4 , wherein
the positioning part directly touches the second material.

6. The coupling device according to claim 4 , wherein
arranged in the second recess between the second material and the positioning part is an intermediate element, which is formed separately from the positioning part, is formed from a different material than the second material, and on which the positioning part is supportable or is supported directly.

7. The coupling device according to claim 6 , wherein
the material of the intermediate part is a metallic material.

8. The coupling device according to claim 4 , wherein
the positioning part is a rolling body of a rolling-bearing support, by way of which rolling-bearing support the actuating device is mounted so as to be displaceable along the axis of rotation on the second component or on a module of the coupling device, which module is formed separately from the second component and rotationally conjointly connected to the second component.

9. The coupling device according to claim 8 , wherein
the rolling-bearing support is a linear-ball-bearing support.

10. The coupling device according to claim 1 , wherein
at least one magnet by which the actuating device is displaceable along the axis of rotation is at least partially embedded in the second material.

11. The coupling device according to claim 10 , wherein
the magnet is a permanent magnet.

12. The coupling device according to claim 10 , wherein
the magnet is at least partially covered in at least one direction running parallel to the axis of rotation, by a covering plate formed from a ferromagnetic material and/or from ferritic steel.

13. The coupling device according to claim 12 , wherein
arranged in the second recess between the second material and the positioning part is an intermediate element, which is formed separately from the positioning part, is formed from a different material than the second material, and on which the positioning part is supportable or is supported directly, and
the covering plate is formed in one piece with the intermediate element.

14. The coupling device according to claim 1 , wherein
the second material at least partially forms a groove for an actuating part which is formed separately from the actuating device, is displaceable along the axis of rotation relative to the components, and by which the actuating device is displaceable by displacing the actuating part.

15. A drive device for an automobile comprising at least one coupling device according to claim 1 .

16. A coupling device for a vehicle, comprising:
a first component;
a second component that is rotatable about an axis of rotation relative to the first component;
at least one recess provided on the first component;
at least one blocking element, which is held movably on the second component and is movable relative to the first and second components between at least a blocking position as a first position, in which the blocking element engages in the recess and as a result prevents a relative rotation between the first and second components about the axis of rotation in at least one direction of rotation, and at least one release position as a second position, in which the blocking element is prevented from engaging in the recess, as a result of which the blocking element in the release position permits a relative rotation between the first and second components about the axis of rotation in the direction of rotation; and
at least one actuating device, which is displaceable along the axis of rotation relative to the first and second components and relative to the blocking element, the actuating device comprising
an actuating element, formed from a first material, by which a movement of the blocking element at least out of one of the positions into the other position can be brought about by displacing the actuating device, and
a basic body, which is formed from a second material different than the first material and which is connected to the actuating element, wherein at least one positioning element, by which a relative rotation between the actuating device and the second component about the axis of rotation is at least delimited, is formed by the second material,

wherein the positioning element has a projection, which is formed by the second material and engages in a corresponding recess, as a result of which the relative rotation between the actuating device and the second component about the axis of rotation is at least delimited.

17. A coupling device for a vehicle, comprising:
a first component;
a second component that is rotatable about an axis of rotation relative to the first component;
at least one recess provided on the first component;
at least

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Ohnemus Ulrich
• Pobitzer Fritz

Classifications

• F16D41/16 Primary

  the action being reversible · CPC title

• F16D27/004

  with permanent magnets combined with electromagnets · CPC title

• F16D27/108

  with axially movable clutching members · CPC title

• F16D41/14

  the effective stroke of the pawl being adjustable · CPC title