Supplementary spring with axially extending contour elements

Patent metadata

Field	Value
Publication number	US-9982735-B2
Application number	US-52091008-A
Country	US
Kind code	B2
Filing date	Sep 12, 2008
Priority date	Sep 14, 2007
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

A spring element with a basic geometry which is concentric along the spring axis, including at least one elastomer, the basic geometry of which is concentric about the spring axis and including constrictions and/or widenings that are axially symmetrical along the spring axis.

First claim

The invention claimed is:

1. A spring element with a geometry which is substantially concentric along a spring axis of the spring element, the spring element comprising:
a main body including:
a plurality of grooves formed at intervals along an outer surface of the main body in a direction of the spring axis, wherein a diameter of the main body at a groove is smaller than a diameter of the main body in an area adjacent to the groove;
at least one elastomer; and
a plurality of contour elements having a circular cross-section located on opposite sides of the spring axis from each other along a line perpendicular to the spring axis, wherein

the plurality of contour elements are located on the outer surface of the main body and separate from the plurality of grooves so that a diameter of the main body at a contour element is greater than a diameter of the main body in an area adjacent to the contour element along the direction of the spring axis,
each contour element of the plurality of contour elements is defined by a cylinder extending along an element axis and having the circular cross-section in a plane perpendicular to the element axis, and
the element axis makes an angle of 0° to 45° with the spring axis.

2. The spring element according to claim 1 , wherein the spring element is a hollow body along the spring axis.

3. The spring element according to claim 1 , wherein the elastomer is rubber and/or polyisocyanate polyaddition product.

4. A shock absorber, comprising:
at least one spring element with a geometry which is substantially concentric along a spring axis of the at least one spring element, the at least one spring element including:
a plurality of grooves formed at intervals along an outer surface of the spring element in a direction of the spring axis, wherein a diameter of the spring element at a groove is smaller than a diameter of the spring element in an area adjacent to the groove;
at least one elastomer; and
a plurality of contour elements having a circular cross-section located on opposite sides of the spring axis from each other along a line perpendicular to the spring axis, wherein

the plurality of contour elements are located on the outer surface of the spring element and separate from the plurality of grooves so that a diameter of the spring element at a contour element is greater than a diameter of the spring element in an area adjacent to the contour element along the direction of the spring axis,
each contour element of the plurality of contour elements is defined by a cylinder extending along an element axis and having the circular cross-section in a plane perpendicular to the element axis, and
the element axis makes an angle of 0° to 45° with the spring axis.

5. A vehicle or device comprising:
a spring element including:
at least one elastomer with a geometry which is substantially concentric along a spring axis of the spring element;
a plurality of grooves formed at intervals along an outer surface of the spring element in a direction of the spring axis, wherein a diameter of the spring element at a groove is smaller than a diameter of the spring element in an area adjacent to the groove;
a plurality of contour elements having a circular cross-section located on opposite sides of the spring axis from each other along a line perpendicular to the spring axis, wherein

the plurality of contour elements are located on the outer surface of the spring element and separate from the plurality of grooves so that a diameter of the spring element at a contour element is greater than a diameter of the spring element in an area adjacent to the contour element along the direction of the spring axis,
each contour element of the plurality of contour elements is defined by a cylinder extending along an element axis and having the circular cross-section in a plane perpendicular to the element axis, and
the element axis makes an angle of 0° to 45° with the spring axis.

6. The spring element according to claim 1 , wherein the contour elements are located only in a lower one third of the main body.

7. The spring element according to claim 1 , wherein a diameter of the circular cross-section of the contour elements is 12 mm.

8. The spring element according to claim 1 , wherein the spring element includes 2, 4, 6, 8, 10, or 12 contour elements.

9. A spring element with a geometry which is substantially concentric along a spring axis of the spring element, the spring element comprising:
a main body including:
a plurality of grooves formed at intervals along an outer surface of the main body in a direction of the spring axis, wherein a diameter of the main body at a groove is smaller than a diameter of the main body in an area adjacent to the groove;
at least one elastomer; and
6 or 8 contour elements having a circular cross-section uniformly distributed around the spring axis such that pairs of elements are located on opposite sides of the spring axis from each other along a line perpendicular to the spring axis, wherein

the 6 or 8 contour elements are located on the outer surface of the main body and separate from the plurality of grooves so that a diameter of the main body at a contour element is greater than a diameter of the main body in an area adjacent to the contour element along the direction of the spring axis,
each contour element of the 6 or 8 contour elements is defined by a cylinder extending along an element axis and having the circular cross-section in a plane perpendicular to the element axis, and the element axis makes an angle of 0° to 45° with the spring axis.

10. The spring element according to claim 9 , wherein the angle is between 0° and 22.5°.

11. The spring element according to claim 1 , wherein the angle is between 0° and 22.5°.

12. The shock absorber according to claim 4 , wherein the angle is between 0° and 22.5°.

13. The vehicle or device according to claim 5 , wherein the angle is between 0° and 22.5°.

14. The spring element according to claim 10 , wherein the angle is between 5° and 15°.

15. The spring element according to claim 11 , wherein the angle is between 5° and 15°.

16. The shock absorber according to claim 12 , wherein the angle is between 5° and 15°.

17. The vehicle or device according to claim 13 , wherein the angle is between 5° and 15°.

18. The spring element according to claim 1 , wherein the angle is between 0° and 30°.

19. The shock absorber according to claim 4 , wherein the angle is between 0° and 30°.

20. The vehicle or device according to claim 5 , wherein the angle is between 0° and 30°.

Assignees

• Thye Moormann Frank
• Basf Se

Inventors

• Thye-Moormann Frank

Classifications

• F16F1/376

  having projections, studs, serrations or the like on at least one surface ({F16F1/3835} , F16F1/387 take precedence) · CPC title

• F16F1/3732 Primary

  having an annular or the like shape, e.g. grommet-type resilient mountings · CPC title