Adjustment wheel arrangement for a shock absorber, and shock absorber with such an adjustment wheel arrangement

Patent metadata

Field	Value
Publication number	US-10865850-B2
Application number	US-201816124997-A
Country	US
Kind code	B2
Filing date	Sep 7, 2018
Priority date	Sep 8, 2017
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

An adjustment wheel arrangement for a shock absorber with a first adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment tube of a piston rod of the shock absorber, and a second adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment rod extending through the adjustment tube. The first adjustment wheel and the second adjustment wheel can be twisted relative to each other by means of a push-twist connection but are or can be connected by form-fit to each other in the axial direction. The push-twist connection is configured in the manner of a key-lock, such that the first adjustment wheel and the second adjustment wheel can be connected to or separated from each other only in a single relative orientation.

First claim

What is claimed is:

1. An adjustment wheel arrangement for a shock absorber, comprising:
a first adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment tube of a piston rod of the shock absorber, and
a second adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment rod extending through the adjustment tube,
wherein the first adjustment wheel and the second adjustment wheel are twistable relative to each other by a push-twist connection and are configured to be connected by form-fit to each other in the axial direction, wherein the push-twist connection is configured as a key-lock, such that the first adjustment wheel and the second adjustment wheel can be connected to or separated from each other only in a single relative orientation,
wherein a spring-loaded ball is inserted in the first adjustment wheel and cooperates with several latching depressions in the second adjustment wheel to produce a rotational adjustment click.

2. The adjustment wheel arrangement of claim 1 , wherein the push-twist connection has at least two recesses of different sizes on the first adjustment wheel and two protrusions of different complementary sizes on the second adjustment wheel, which protrusions are configured to extend through the recesses in order to connect the adjustment wheels.

3. The adjustment wheel arrangement of claim 2 , wherein the recesses and the protrusions are arranged on a common circular path, wherein the spacings of the recesses of the first adjustment wheel along the circular path are different from each other, wherein the spacings of the protrusions of the second adjustment wheel along the circular path are different from each other.

4. The adjustment wheel arrangement of claim 1 , wherein the first adjustment wheel has a passage opening which comprises recesses.

5. The adjustment wheel arrangement of claim 4 , wherein the second adjustment wheel has a cylindrical fixing portion which extends through the passage opening of the first adjustment wheel.

6. The adjustment wheel arrangement of claim 5 , wherein protrusions are formed on the cylindrical fixing portion.

7. The adjustment wheel arrangement of claim 1 , wherein the second adjustment wheel has at least one internal toothing for force-fit and/or form-fit connection to the adjustment rod.

8. The adjustment wheel arrangement of claim 7 wherein a cylindrical fixing portion of the second adjustment wheel has the at least one internal toothing for force-fit and/or form-fit connection to the adjustment rod.

9. The adjustment wheel arrangement of claim 1 , wherein the second adjustment wheel has an alignment pin receiver arranged on a common circular path with the latching depressions.

10. The adjustment wheel arrangement of claim 9 , wherein an alignment pin is inserted in the alignment pin receiver.

11. An adjustment wheel arrangement for a shock absorber, the adjustment wheel arrangement comprising:
a first adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment tube of a piston rod of the shock absorber, and
a second adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment rod extending through the adjustment tube,
wherein the first adjustment wheel and the second adjustment wheel are twistable relative to each other by a push-twist connection and are configured to be connected by form-fit to each other in the axial direction, wherein the push-twist connection is configured as a key-lock, such that the first adjustment wheel and the second adjustment wheel can be connected to or separated from each other only in a single relative orientation,
wherein a spring-loaded ball is inserted in the first adjustment wheel and cooperates with several latching depressions in the second adjustment wheel to produce a rotational adjustment click,
wherein the second adjustment wheel has an alignment pin receiver arranged on a common circular path with the latching depressions,
wherein the alignment pin receiver is positioned such that the alignment pin receiver aligns with the spring-loaded ball when the first adjustment wheel and the second adjustment wheel have a relative position to each other in which recesses and protrusions of the push-twist connection are arranged above each other so as to be congruent.

12. An adjustment wheel arrangement for a shock absorber, the adjustment wheel arrangement comprising:
a first adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment tube of a piston rod of the shock absorber, and
a second adjustment wheel which is configured to connect in a torque-proof fashion to an adjustment rod extending through the adjustment tube,
wherein the first adjustment wheel and the second adjustment wheel are twistable relative to each other by a push-twist connection and are configured to be connected by form-fit to each other in the axial direction, wherein the push-twist connection is configured as a key-lock, such that the first adjustment wheel and the second adjustment wheel can be connected to or separated from each other only in a single relative orientation,
wherein a spring-loaded ball is inserted in the first adjustment wheel and cooperates with several latching depressions in the second adjustment wheel to produce a rotational adjustment click,
wherein the second adjustment wheel has an alignment pin receiver arranged on a common circular path with the latching depressions,
wherein for visual inspection of the relative position between the adjustment wheels, the first adjustment wheel has two passage holes, between which the spring-loaded ball is inserted, wherein said passage holes align with the alignment pin receiver in two predefined twist positions.

Assignees

• Thyssen Krupp Bilstein Gmbh
• Thyssenkrupp Ag

Inventors

• Pitsch Daniel
• Flick Martin

Classifications

• F16F9/467 Primary

  using rotary valves · CPC title

• F16F9/443

  manually adjusted while the damper is fully retracted or extended in a non-operational mode by rotating mechanical means that have engaged between the piston and one end of the cylinder · CPC title

• F16B7/042

  with a locking element, e.g. pin, ball or pushbutton, engaging in a hole in the wall of at least one tube · CPC title

• F16B3/00

  Key-type connections; Keys (F16B2/00 takes precedence; for rods or tubes mutually F16B7/00) · CPC title

• F16F9/3207 Primary

  Constructional features (F16F9/34 - F16F9/50 take precedence; assembly or repair F16F9/3271) · CPC title