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DE-102024132755-A1 - Spring mount, vibration damper and process

DE102024132755A1DE 102024132755 A1DE102024132755 A1DE 102024132755A1DE-102024132755-A1

Abstract

Spring retainer (10), in particular spring plate, for a vibration damper (100), comprising at least one spring retainer ring (11) which, in the installed state, is arranged on an outer tube (101) of the vibration damper (100), and at least one adjusting device (12) which is configured to change or fix the position of the spring retainer ring (11) along the longitudinal axis (L) of the vibration damper (100), wherein the adjusting device (12) comprises at least one locking element (13) and at least one actuating element (14) which biases the locking element (13) in the direction of a receiving area (102) of the outer tube (101) and is movable between at least one locking position and at least one release position, wherein the locking element (13) bears at least partially against the spring retainer ring (11) in the locking position, such that a positive fit is formed between the locking element (13) and the receiving area (102) in the circumferential direction of the outer tube. (101) is formed.

Inventors

  • Jens Robrecht
  • Martin Flick

Assignees

  • THYSSENKRUPP AG
  • THYSSENKRUPP BILSTEIN GMBH

Dates

Publication Date
20260513
Application Date
20241111

Claims (14)

  1. Spring retainer (10), in particular spring plate, for a vibration damper (100), comprising at least one spring retainer ring (11) which, in the installed state, is arranged on an outer tube (101) of the vibration damper (100), and at least one adjusting device (12) which is configured to change or fix the position of the spring retainer ring (11) along the longitudinal axis (L) of the vibration damper (100), characterized in that the adjusting device (12) has at least one locking element (13) and at least one actuating element (14) which biases the locking element (13) in the direction of a receiving area (102) of the outer tube (101) and is movable between at least one locking position and at least one release position, wherein the locking element (13) bears at least partially against the spring retainer ring (11) in the locking position, such that a positive fit is formed between the locking element (13) and the receiving area (102) in the circumferential direction. of the outer tube (101).
  2. Spring mount (10) after Claim 1 , characterized in that the spring retaining ring (11) is rotatable relative to the outer tube (101) in the release position in order to change the position of the spring retaining ring (11) along the longitudinal axis (L) of the vibration damper (100).
  3. Spring mount (10) after Claim 1 or 2 , characterized in that the spring retaining ring (11) can be moved stepwise into different rotational positions in the release position, so that the position of the spring retaining ring (11) along the longitudinal axis (L) of the vibration damper (100) can be changed stepwise depending on the rotational position.
  4. Spring retainer (10) according to one of the preceding claims, characterized in that the outer tube (101) of the vibration damper (100) has an external thread (103) and the spring retainer ring (11) has an internal thread (15), so that the position of the spring retainer ring (11) along the longitudinal axis (L) of the vibration damper (100) can be changed by screwing it on.
  5. spring receptacle (10) according to one of the preceding claims, characterized in that the at least one receiving area (102) for the locking element (13) is designed as a groove (102a) which preferably extends in the longitudinal direction (L) of the outer tube (101).
  6. spring receptacle (10) according to one of the preceding claims, characterized in that the outer tube (101) has several receiving areas (102), in particular grooves (102a), for the locking element (13), which are spaced apart from each other in the circumferential direction of the outer tube (101).
  7. Spring retainer (10) according to one of the preceding claims, characterized in that the spring retainer ring (11) has at least one bore (16) for receiving the adjusting device (12), which extends in the radial direction of the spring retainer ring (11).
  8. Spring receptacle (10) according to one of the preceding claims, characterized in that the bore (16) has an internal thread (16a) and the actuating element (14) has an external thread, so that the actuating element (14) can be screwed into the bore (16).
  9. Spring receptacle (10) according to one of the preceding claims, characterized in that the bore (16) has at least one shoulder (17) on which the locking element (13) is supported in the locking position.
  10. Spring receptacle (10) according to one of the preceding claims, characterized in that in the installed state a clamping element (18), in particular a spring (18a), is arranged between the locking body (13) and the actuating element (14), which applies a clamping force in the direction of the outer tube.
  11. Spring receptacle (10) according to one of the preceding claims, characterized in that the locking element (13) is essentially spherical.
  12. Spring retainer (10) according to one of the preceding claims, characterized in that a locking element (19) is arranged on the spring retainer ring (11) in the installed state such that it forms a stop for the actuating element (14) in the radial direction.
  13. Vibration damper (10), in particular strut, for a motor vehicle with at least one spring mount (10) according to one of the preceding claims.
  14. Method for adjusting the position of a spring holder (10), in particular according to one of the Claims 1 until 12 , along the longitudinal axis (L) of a vibration damper (100), wherein the spring retainer (10) comprises at least one spring retainer ring (11) which is arranged on an outer tube (101) of the vibration damper (100) in the installed state, and at least one adjusting device (12), and wherein the method The following steps are included: - Moving an actuating element (14) of the adjusting device (12), which biases the locking element (13) in the direction of a receiving area (102) of the outer tube (101), from at least one locking position to at least one release position in order to release the spring retaining ring (11); - Moving the spring retaining ring (11) relative to the outer tube (101) of the vibration damper (100) in order to change the position of the spring retaining ring (11) along the longitudinal axis (L) of the vibration damper (100); - Moving the actuating element (14) from the release position to the locking position, wherein the locking element (13) bears at least partially against the spring retaining ring (11) in the locking position, such that a positive fit is formed between the locking element (13) and the receiving area (102) in the circumferential direction of the outer tube (101).

Description

The invention relates to a spring mount, in particular a spring plate, for a vibration damper. A spring mount according to the preamble of claim 1 is, for example, made from the DE 10 2019 218 494 A1 known. Furthermore, the invention relates to a vibration damper with at least one spring mount and a method for adjusting the position of such a spring mount along the longitudinal axis of the vibration damper. Vibration dampers are commonly used in motor vehicles and in industrial applications to ensure safe and comfortable handling under varying driving conditions caused by irregularities such as uneven surfaces, potholes, or other road surface anomalies. Furthermore, vibration dampers also serve to stabilize vehicles when driving under more extreme conditions, such as off-road. Spring mounts, especially spring plates, for vibration dampers are known from the prior art and typically serve to hold suspension springs, such as coil springs. The spring mounts ensure that the suspension springs are kept under tension during use. This allows the suspension springs to convert shocks caused by uneven road surfaces into oscillating movements. To optimally fulfill this function, it is often necessary to change the position of the spring mount along the longitudinal axis of the vibration damper. From the aforementioned DE 10 2019 218 494 A1 A spring mount is known whose position along the longitudinal axis of the vibration damper is variable. The known spring mount has a variable inner cross-section to fix the spring mount to the outer circumference of the vibration damper by clamping. However, a disadvantage is that the clamping action can damage the vibration damper. The invention is therefore based on the objective of providing a spring mount that allows, on the one hand, a change in position along the longitudinal axis of a vibration damper and, on the other hand, a fixation to the vibration damper without causing damage to the vibration damper. Furthermore, the invention is based on the objective of providing a vibration damper with at least one such spring mount and a method for adjusting the position of such a spring mount along the longitudinal axis of the vibration damper. According to the invention, this problem with regard to the spring mounting is solved by the subject matter of claim 1. With regard to the vibration damper, the aforementioned problem is solved by the subject matter of claim 13, and with regard to the method, by the subject matter of claim 14. Specifically, the problem is solved by a spring retainer, in particular a spring plate, for a vibration damper, comprising at least one spring retainer ring which, in the installed state, is arranged on an outer tube of the vibration damper, and at least one adjusting device designed to change or fix the position of the spring retainer ring along the longitudinal axis of the vibration damper. The adjusting device has at least one locking element and at least one actuating element which biases the locking element towards a receiving area of the outer tube and is movable between at least one locking position and at least one release position. In the locking position, the locking element rests at least partially against the spring retainer ring, such that a positive fit is formed between the locking element and the receiving area in the circumferential direction of the outer tube. The invention has several advantages. The spring retainer according to the invention allows the spring retainer ring to be adjusted along the longitudinal axis of the outer tube of the vibration damper. For this purpose, the spring retainer has an adjustment mechanism with an actuating element and a locking element. The actuating element is movable between a locking position and a release position to block or release the locking element. The actuating element can, for example, be a setscrew. Other configurations of the actuating element are possible. When the locking element of the adjustment mechanism is released, the spring retainer ring is movable on the outer tube. In the release position, the spring retainer ring can be moved up and down along the longitudinal axis of the outer tube in its installed position. In this way, it is possible to adjust the position of the spring retainer along the longitudinal axis of the vibration damper so that the spring tension of a suspension spring mounted on the spring retainer can be adapted to specific driving situations. Furthermore, the spring retainer according to the invention enables damage-free fixing of the spring retainer ring to the outer tube of the vibration damper. For this purpose, the locking element of the adjusting device rests at least partially against the spring retainer ring in the locking position and is pre-tensioned towards a receiving area on the outer tube. This means that the locking element forms a positive fit with the receiving area or is engaged in the receiving area, with the locking element being supported