IP Library › Granted Patent US 12,264,720
Granted Patent B2
US 12,264,720 · App. 17/945,989 · Granted Apr 1, 2025

Elastic link with different elastic behavior

Inventors: Pascal Carobolante (Sauvigny-les-bois, FR); Florian Kaszyca (Lucenay-lès-Aix, FR)
Assignee: SUMITOMO RIKO COMPANY LIMITED
F16F1/3732F16F1/377F16F2226/04
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Quick Facts
Patent No.
US 12,264,720
App. No.
17/945,989
Granted
Apr 1, 2025
Kind
B2
Abstract

An elastic link comprising a first sleeve and a second sleeve. The first sleeve comprises a first elastic body, a first inner armature surrounded by the first elastic body, and a first outer armature surrounding the first elastic body. The second sleeve comprises a second elastic body, a second inner armature surrounded by the second elastic body, and a second outer armature surrounding the second elastic body. The first elastic body and the second elastic body presenting different elastic behaviors. This constitutes an improved elastic link.

Claims (49)

1. An elastic link, comprising:

a first sleeve, comprising a first elastic body, a first inner armature surrounded by the first elastic body, and a first outer armature surrounding the first elastic body, and

a second sleeve, comprising a second elastic body, a second inner armature surrounded by the second elastic body, and a second outer armature surrounding the second elastic body,

the first elastic body and the second elastic body presenting different elastic behaviors, wherein a damping of the first elastic body in a first radial direction relative to a link axis is greater than a damping of the second elastic body in the first radial direction relative to the link axis, and a resilience of the second elastic body in a second radial direction relative to the link axis is greater than a resilience of the first elastic body in the second radial direction relative to the link axis.

2. The link according to claim 1 , wherein:

the damping of the first elastic body in the first radial direction relative to the link axis is greater than the damping of the second elastic body in the second radial direction relative to the link axis.

3. The link according to claim 2 , wherein the damping of the first elastic body in the first radial direction relative to the link axis is greater than 1.5 times the damping of the second elastic body in the second radial direction relative to the link axis.

4. The link according to claim 3 , wherein

the damping of the first elastic body in the first radial direction relative to the link axis is between 0.10 and 0.24, and

the damping of the second elastic body in the second radial direction relative to the link axis is between 0.04 and 0.11.

5. The link according to claim 4 , wherein

the damping of the first elastic body in the first radial direction relative to the link axis is 0.14, and

the damping of the second elastic body in the second radial direction relative to the link axis is 0.07.

6. The link according to claim 2 , wherein the link is an elastic link for a vehicle, the first radial direction being a direction of travel of the vehicle, the second radial direction being a vertical of the vehicle.

7. The link of claim 2 , wherein:

the first elastic body comprises one or more end-of-stroke stops in the second radial direction, and

the second elastic body comprises one or more end-of-stroke stops in the first radial direction.

8. The link according to claim 1 , wherein the first radial direction and the second radial direction are substantially orthogonal.

9. The link according to claim 1 , wherein the link further comprises a housing that integrates the first sleeve and the second sleeve.

10. The link according to claim 1 , wherein the link further comprises a means for securing the first sleeve and the second sleeve together.

11. A method for manufacturing an elastic link, the elastic link comprising:

a first sleeve, comprising a first elastic body, a first inner armature surrounded by the first elastic body, and a first outer armature surrounding the first elastic body, and

a second sleeve, comprising a second elastic body, a second inner armature surrounded by the second elastic body, and a second outer armature surrounding the second elastic body,

the first elastic body and the second elastic body presenting different elastic behaviors, wherein a damping of the first elastic body in a first radial direction relative to a link axis is greater than a damping of the second elastic body in the first radial direction relative to the link axis, and a resilience of the second elastic body in a second radial direction relative to the link axis is greater than a resilience of the first elastic body in the second radial direction relative to the link axis, the method comprising:

providing and positioning:

the first inner armature and the first outer armature, and

the second inner armature and the second outer armature;

molding:

the first elastic body between the first inner armature and first outer armature, so as to obtain the first sleeve, and

the second elastic body between the second inner armature and the second outer armature, so as to obtain the second sleeve; and

assembling the first sleeve and the second sleeve.

12. The method of claim 11 , wherein:

the damping of the first elastic body in the first radial direction relative to the link axis is greater than the damping of the second elastic body in the second radial direction relative to the link axis.

13. The method of claim 12 , wherein the damping of the first elastic body in the first radial direction relative to the link axis is greater than 1.5 times the damping of the second elastic body in the second radial direction relative to the link axis.

14. The method of claim 13 , wherein

the damping of the first elastic body in the first radial direction relative to the link axis is between 0.10 and 0.24, and

the damping of the second elastic body in the second radial direction relative to the link axis is between 0.04 and 0.11.

15. The method of claim 14 , wherein

the damping of the first elastic body in the first radial direction relative to the link axis is 0.14, and

the damping of the second elastic body in the second radial direction relative to the link axis is 0.07.

16. The method of claim 12 , wherein the link is an elastic link for a vehicle, the first radial direction being a direction of travel of the vehicle, the second radial direction being a vertical of the vehicle.

17. The method of claim 12 , wherein:

the first elastic body comprises one or more end-of-stroke stops in the second radial direction, and

the second elastic body comprises one or more end-of-stroke stops in the first radial direction.

18. The method of claim 11 , wherein the first radial direction and the second radial direction are substantially orthogonal.

19. The method according to claim 11 , wherein assembling the first sleeve and the second sleeve comprises implementing a means for securing the first sleeve and the second sleeve together.

20. The method according to claim 11 , wherein assembling the first sleeve and the second sleeve comprises:

crimping a housing around the first sleeve and the second sleeve; and

inserting a connector into a central passage of the first inner armature and into a central passage of the second inner armature.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2022
From: CAROBOLANTE, PASCAL; KASZYCA, FLORIAN
To: SUMITOMO RIKO COMPANY LIMITED
Reel/Frame 061113/0360 →
Priority Claims (1)
FR 2110503 · Oct 5, 2021 · national
Continuity (1)
Related Publication 20230109027A1 · Apr 6, 2023
References Cited (36)
US 3831920A · Meldrum · 1974 [cited by examiner]
US 4662791A · Spicer · 1987 [cited by examiner]
US 4936556A · Makibayashi · 1990 [cited by examiner]
US 5299790A · Whightsil, Sr. · 1994 [cited by examiner]
US 6663090B2 · Simuttis · 2003 [cited by examiner]
US 6953187B2 · Groth · 2005 [cited by examiner]
US 7506862B2 · Siemer · 2009 [cited by examiner]
US 8037573B2 · Bost, Jr. · 2011 [cited by examiner]
US 8579510B2 · Noble · 2013 [cited by examiner]
US 8973909B2 · Noble · 2015 [cited by examiner]
US 9506517B2 · Cha · 2016 [cited by examiner]
US 11320014B2 · Gendron et al. · 2022 [cited by applicant]
US 11572927B2 · Lee · 2023 [cited by applicant]
US 11577569B2 · Gaspar · 2023 [cited by examiner]
US 11685209B2 · Jo · 2023 [cited by examiner]
US 11719300B2 · Carobolante · 2023 [cited by examiner]
US 12025180B2 · Johnston · 2024 [cited by examiner]
US 20060012092A1 · Siemer · 2006 [cited by examiner]
US 20090249581A1 · Bost, Jr. · 2009 [cited by examiner]
US 20110222803A1 · Noble · 2011 [cited by examiner]
US 20120175831A1 · Kieffer · 2012 [cited by examiner]
US 20160052357A1 · Cha · 2016 [cited by examiner]
US 20180135716A1 · Zimmerman · 2018 [cited by examiner]
US 20210164531A1 · Gendron · 2021 [cited by examiner]
US 20220364623A1 · Bixler · 2022 [cited by examiner]
US 20220364624A1 · Carobolante · 2022 [cited by examiner]
CN 105818666A · 2016 [cited by applicant]
CN 208530202U · 2019 [cited by applicant]
CN 112824214A · 2021 [cited by applicant]
DE 102017009679A1 · 2019 [cited by applicant]
EP 2180203A2 · 2010 [cited by applicant]
KR 9120340A · 1991 [cited by applicant]
KR 924705Y1 · 1992 [cited by applicant]
WO 2019202217A1 · 2019 [cited by applicant]
Search Report and Written Opinion mailed May 31, 2022 in French Patent Application No. 2110503 with partial English translation, 12 pages. [cited by applicant]
First Office Action mailed Jan. 16, 2025 in Chinese Patent Application No. 202211157889.5 with machine translation, 12 pages. [cited by applicant]