Vehicle device with a spindle/nut arrangement and with an anti-rotation device and method for mounting an anti-rotation device for the manufacture of such a vehicle device

Patent metadata

Field	Value
Publication number	US-11280390-B2
Application number	US-201916535959-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Aug 9, 2018
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

A vehicle mechanism with a housing may have a spindle/nut assembly and a rotation lock, where in order to displace a spindle rod of the spindle/nut assembly in the longitudinal direction of the spindle rod, a rotational movement of a spindle nut of the spindle/nut assembly is blocked by the rotation lock. In order to support the spindle nut such that it cannot rotate, and/or to facilitate an assembly of the vehicle mechanism, and/or the rotation lock, the rotation lock may have at least one elastomer element for retaining the rotation lock on the housing.

First claim

I claim:

1. A vehicle mechanism, comprising:
a housing;
a spindle nut assembly, the spindle nut assembly having a spindle rod and a spindle nut, wherein rotation of the spindle nut relative to the spindle rod causes relative movement between the spindle nut and the spindle rod in a longitudinal direction of the spindle rod; and
a rotation lock,
wherein the rotation lock is configured to engage the spindle nut to prevent rotation of the spindle nut relative to the rotation lock, and
wherein the rotation lock has at least one elastomer element for securing the rotation lock to the housing,
wherein the at least one elastomer element is located on an outer perimeter of the rotation lock.

2. The vehicle mechanism according to claim 1 , wherein the outer perimeter of the rotation lock is an outer circumference.

3. The vehicle mechanism according to claim 1 , wherein the at least one elastomer element is in direct contact with the housing such that the at least one elastomer element determines a maximum outer diameter of the rotation lock.

4. The vehicle mechanism according to claim 1 , wherein the rotation lock has a plurality of elastomer elements, and wherein each elastomer element of the plurality of elastomer elements is uniformly distributed on an outer circumference of the rotation lock.

5. The vehicle mechanism according to claim 1 , wherein the at least one elastomer element has a circumferential outer contour.

6. The vehicle mechanism according to claim 1 , wherein the at least one elastomer element has a reinforcing component, and wherein the reinforcing component is formed as an annular component connected in a form fitting manner to a body of the elastomer element.

7. The vehicle mechanism according to claim 1 , wherein the rotation lock has a structural element, wherein the structural element has at least one attachment receiver for a form fitting attachment of the elastomer element.

8. The vehicle mechanism according to claim 7 , wherein the attachment receiver has an opening with a circular segment, wherein the opening opens radially outward in relation to the structural element, and the attachment receiver extends over an outer diameter of the at least one elastomer element when the at least one elastomer element is placed in the opening.

9. The vehicle mechanism according to claim 8 , wherein the attachment receiver has an inner contour with an annular segment that corresponds with an annular outer contour of the elastomer element in order to obtain the form fitting attachment of the elastomer element in the attachment receiver, and wherein the inner contour and the outer contour have a circumferential groove and a circumferential web, respectively.

10. The vehicle mechanism according to claim 1 , wherein the rotation lock has a retention element for receiving the spindle nut.

11. The vehicle mechanism according to claim 10 , wherein the retention element is includes a sleeve, wherein the sleeve has an inner chamber for receiving the spindle nut, and wherein the spindle nut is retained in a form fitting manner within the inner chamber.

12. The vehicle mechanism according to claim 10 , wherein the retention element is includes a sleeve, wherein the sleeve has an inner chamber for receiving the spindle nut, and wherein the spindle nut is displaceable within the inner chamber.

13. The vehicle mechanism according to claim 1 , wherein the housing has at least one receiver for receiving the at least one elastomer element in a form fitting manner, and wherein a section of the at least one elastomer element that extends outward over a structural element of the rotation lock is received in the receiver.

14. The vehicle mechanism according to claim 1 , wherein the vehicle mechanism is integrated within at least one of a vehicle brake, a braking force generating mechanism, and a braking force reinforcing mechanism.

15. A method, comprising:
assembling a vehicle mechanism, the vehicle mechanism, comprising:
a housing;
a spindle nut assembly, the spindle nut assembly having a spindle rod and a spindle nut, wherein rotation of the spindle nut relative to the spindle rod causes relative movement between the spindle nut and the spindle rod in a longitudinal direction of the spindle rod; and
a rotation lock,
wherein the rotation lock is configured to engage the spindle nut to prevent rotation of the spindle nut relative to the rotation lock,
wherein the rotation lock has at least one elastomer element for securing the rotation lock to the housing, and
wherein the rotation lock is inserted into an interior chamber of the housing of the housing until the at least one elastomer element snaps in place in a receiver in the housing.

16. The method according to claim 15 , wherein the at least one elastomer element is compressed during the insertion of the rotation lock, and wherein the elastomer element assumes its uncompressed initial shape once it is snapped into place.

17. The method according to claim 15 , wherein an assembly device is used to insert the rotation lock into the interior chamber of the housing, wherein the assembly device has a guide ramp for the elastomer element, and wherein the at least one elastomer element is continuously compressed from its uncompressed initial form to a compressed form by the guide ramp while the rotation lock is inserted into the interior chamber of the housing.

18. The method according to claim 17 , wherein the assembly device includes a sleeve, wherein the guide ramp is obtained with a shaped inner wall of the assembly device.

19. The method according to claim 15 , wherein a reinforcing component is placed in a through hole in the elastomer element after inserting the rotation lock into the interior chamber of the housing.

20. A vehicle mechanism, comprising:
a housing;
a spindle nut assembly, the spindle nut assembly having a spindle rod and a spindle nut, wherein rotation of the spindle nut relative to the spindle rod causes relative movement between the spindle nut and the spindle rod in a longitudinal direction of the spindle rod; and
a rotation lock,
wherein the rotation lock is configured to engage the spindle nut to prevent rotation of the spindle nut relative to the rotation lock, and
wherein the rotation lock has at least one elastomer element for securing the rotation lock to the housing,
wherein the at least one elastomer element has a reinforcing component, and wherein the reinforcing component is formed as an integral cross brace in the elastomer element.

Assignees

• Zf Active Safety Gmbh

Inventors

• Mallmann Markus

Classifications

• F16H25/20 Primary

  Screw mechanisms (with automatic reversal F16H25/12) · CPC title

• F16H25/2454 Primary

  Brakes; Rotational locks · CPC title