US 9,702,431 B2Granted

Damper

AssigneeAisin Seiki Kabushiki Kaisha

InventorsHiroshi Kawazoe, Masaru Ebata, Takuya Fujiwara, Miki Torii, Tomohiro Saeki

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Abstract

A damper includes a first, second, and third rotation member rotatable around a rotation axis, a first elastic portion interposed between the first rotation member and the second rotation member and elastically deformed by a relative rotation between the first rotation member and the second rotation member, a second elastic portion interposed between the second rotation member and the third rotation member and elastically deformed by a relative rotation between the second rotation member and the third rotation member, and a dynamic vibration absorber. The dynamic vibration absorber includes a rolling element that is positioned at an inner side relative to the first elastic portion and the second elastic portion in a radial direction of the rotation axis, and is rotatable relative to the second rotation member.

Claims7

Dependent claims

A damper comprising:

a first rotation member being rotatable around a rotation axis;
a second rotation member being rotatable around the rotation axis;
a third rotation member being rotatable around the rotation axis;
a first elastic portion interposed between the first rotation member and the second rotation member and being elastically deformed by a relative rotation between the first rotation member and the second rotation member;
a second elastic portion interposed between the second rotation member and the third rotation member and being elastically deformed by a relative rotation between the second rotation member and the third rotation member;
and
a centrifugal absorber including a rolling element that is positioned at an inner side relative to the first elastic portion and the second elastic portion in a radial direction of the rotation axis, the rolling element being supported by the third rotation member and, while in contact with an inwardly protruding portion of the second rotation member and an outwardly recessed portion of the second rotation member, rotatable relative to the second rotation member.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/658,945Filed 16 Mar 2015
Priority: JP 2014-06692827 Mar 2014
Published: US 2015/0276013 A11 Oct 2015
Granted: 11 Jul 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F16F 15/13484
Resulting in a staged spring characteristic, e.g. with multiple intermediate plates: acting on multiple sets of springs
F16F 15/1392
Characterised by friction-damping means: characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional…
F16F 15/145
The rotation being limited with respect to the driving means: masses mounted with play with respect to driving means thus enabling free movement…
F16F
Springs