Telescopic column

Patent metadata

Field	Value
Publication number	US-11047448-B2
Application number	US-201815935100-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	Apr 28, 2017
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

A telescopic column includes at least two telescopic elements movable with respect to one another between two end positions and at least one damper that is configured such that, prior to reaching at least one of the end positions, a force slowing the relative movement of the telescopic elements is exerted on at least one of the telescopic elements.

First claim

What is claimed is:

1. A telescopic column, comprising:
at least two telescopic elements movable with respect to one another between two end positions, and
at least one damper that is configured such that, prior to reaching at least one of the end positions, a force slowing a relative movement of the telescopic elements is exerted on at least one of the telescopic elements, wherein the at least one damper having a stop and a damping element, the damping element being secured to an outer surface of an inner one of said at least two telescopic elements and the stop of the least one damper is secured to an inner surface of an outer one of the at least two telescopic elements.

2. The telescopic column according to claim 1 , wherein the damper is configured such that the movement of the two telescopic elements is continuously slowed until reaching at least one of the end positions.

3. The telescopic column according to claim 1 , wherein, the damping element is configured to move into operative contact with the stop to generate the force.

4. The telescopic column according to claim 1 , wherein the stop is secured to the inner surface of the outer one of the at least two telescopic elements such that prior to reaching the end position the stop is brought into operative contact with the damping element.

5. The telescopic column according to claim 1 , wherein a further stop is secured on the inner surface of the outer one of the at least two telescopic elements such that prior to reaching the other end position the further stop is brought into operative contact with the damping element.

6. The telescopic column according to claim 1 , wherein the damping element comprises:
a housing,
a plunger movably disposed in the housing, and
a spring element configured to generate a force between the plunger and the housing.

7. The telescopic column according to claim 6 , wherein the plunger is configured to move into operative contact with the stop.

8. The telescopic column according to claim 1 , wherein the telescopic elements have circumferential measurements adapted to one another and are disposed nested one-inside-the-other such that from the outer- to the inner-lying telescopic element the inner surface of the outer-lying telescopic element faces the outer surface of the next-inner-lying telescopic element.

9. The telescopic column according to claim 1 , wherein the damper comprises a piston in a cylinder.

10. A telescopic column, comprising:
a first telescopic element and a second telescopic element movable with respect to one another between a first end position and a second end position, and
damping means for slowing a relative movement of the telescopic elements before reaching the first end position, wherein the damping means having at least one damping element, at least one stop and at least one further stop, wherein the at least one damping element is movable relative to the at least one stop and the at least one further stop, wherein the at least one damping element is configured to move into operative contact with the at least one stop and the at least one further stop to slow the relative movement of the first and second telescopic elements.

11. The telescopic column according to claim 10 , wherein the at least one damping element comprises a piston in a cylinder.

12. The telescopic column according to claim 10 , wherein the at least one damping element is secured to one of the first and second telescopic elements and the at least one stop and the at least one further stop are secured to the other one of the first and second telescopic elements.

13. A telescopic column, comprising:
a first telescopic element and a second telescopic element movable with respect to one another between a first end position and a second end position, the first telescopic element including a stop,
a damper mounted on the second telescopic element, the damper being shiftable between an extended start position and a compressed end position, and
wherein the first telescopic element and the second telescopic element are shiftable from a first configuration in which the damper is spaced from the stop and in the extended start position to a second configuration in which the damper contacts the stop and the damper is in the extended start position and a third configuration in which the damper contacts the stop and the damper is in the compressed end position.

14. The telescopic column according to claim 13 , wherein the damper comprises a piston in a cylinder.

Assignees

• Skf Ab

Inventors

• Jakober Dieter
• Greilinger Daniel
• Soltermann Marcel

Classifications

• B66D1/56 Primary

  Adaptations of limit switches · CPC title

• B66F3/10

  with telescopic sleeves · CPC title

• F16F13/007 Primary

  the damper being a fluid damper · CPC title

• F16M2200/04

  Balancing means · CPC title

• F16F2236/045

  the spring material being generally enclosed · CPC title