Suspension element for the mechanical attachment of a load suspended within a mount

Patent metadata

Field	Value
Publication number	US-2016146282-A1
Application number	US-201414762115-A
Country	US
Kind code	A1
Filing date	Jan 17, 2014
Priority date	Jan 18, 2013
Publication date	May 26, 2016
Grant date	—

Abstract

A suspension element for the mechanical connection of a load which is suspended in a support, having a rigidity. It comprises at least two mechanical interfaces with the load and with the support, respectively, and at least two plates which connect each of the two interfaces in a complete connection, the rigidity of the element being adjusted to specific values along three orthogonal axes in accordance with the number of plates, their distribution between the interfaces and their dimensions in terms of length, thickness and depth.

First claim

1 . A suspension element for vibration isolation, for the mechanical connection of a load which is suspended in a support, having a rigidity, comprising at least two mechanical interfaces with the load and with the support, respectively, and at least two plates which connect each of the two interfaces in a complete connection, the interfaces forming a monolithic structure with the plates, the rigidity of the element being adjusted to specific values along three orthogonal axes in accordance with the number of plates, their distribution between the interfaces and their dimensions in terms of length, thickness and depth, further comprising at least one damping element.

2 . The suspension element as claimed in claim 1 , wherein the plates are distributed between the interfaces in accordance with a cyclic symmetry.

3 . (canceled)

4 . The suspension element as claimed in claim 1 , wherein at least one damping element is formed by a stud of elastomer material which is arranged between the plates or between the plates and the interfaces.

5 . The suspension element as claimed in claim 4 , comprising at least as many studs of elastomer material as plates.

6 . The suspension element as claimed in claim 4 , wherein a damping element is formed by a layer of elastomer material which is located between at least one of the plates and at least one additional plate which is adhesively bonded to the plate by the layer.

7 . The suspension element as claimed in claim 1 , wherein the plates have, between their two connection locations with each of the interfaces, a curved shape having continuous curvature.

8 . The suspension element as claimed in claim 1 , wherein the fillet of each plate with each of the interfaces has continuity of curvature.

9 . The suspension element as claimed in claim 1 , wherein the interfaces and the plates are produced from a material which has a high degree of rigidity linearity.

10 . The suspension element as claimed in claim 9 , wherein the material is a steel.

11 . (canceled)

12 . The suspension element as claimed in claim 1 , wherein the interfaces are substantially concentric with the load and the support, respectively.

13 . The suspension element as claimed in claim 1 , wherein there are two interfaces which form a planar structure with the plates.

14 . The suspension element as claimed in claim 13 , wherein the interfaces are substantially concentric, wherein at least three plates having a curved shape with continuous curvature connect the interfaces, the length of the plates given as the number of turns between the two connection locations with the interfaces being substantially identical, the plates being distributed between the interfaces in accordance with a cyclic symmetry and wherein the plates have a cross-section having a short side and a long side, the value of the ratio between the short side and the long side being determined in accordance with the length of the plates in order to ensure the isotropy in terms of rigidity of the suspension element with an error less than 10%.

15 . The suspension element as claimed in claim 14 , wherein the cross-section has a rectangular, elliptical or trapezoidal shape.

16 . The suspension element as claimed in claim 15 , wherein the length of the plates is substantially equal to a half-turn and the value of the ratio between the short side and the long side is between 0.1 and 0.2.

17 . The suspension element as claimed in claim 1 , wherein there are two interfaces which form a three-dimensional structure with the plates.

18 . The suspension element as claimed in claim 1 , wherein there is an even number of interfaces which form with the plates a specific number, greater than or equal to two, of planar elementary structures having two interfaces with the support and the load, respectively, the structures being substantially identical and pressed against each other with at least one damping element which is located between two plates which belong to two adjacent elementary structures.

19 . The suspension element as claimed in claim 18 , wherein the structures are adhesively bonded to each other by a layer of elastomer material which forms the damping element.

Assignees

• Thales Sa

Inventors

• Collard Eric
• Tardif Fabrice

Classifications

• F16F1/326 Primary

  with a spiral-like appearance · CPC title

• F16F3/12

  the steel spring being in contact with the rubber spring {(F16F1/12 takes precedence)} · CPC title