ASSEMBLY FOR TORSIONAL VIBRATION REDUCTION DEVICE

WIPO Patent Application WO/2024/018585

A1

An input member 10, which is connected to a drive source, and an output member 12, which is connected to a transmission, are each made of a single press-formed steel plate. A coil spring 14 is disposed so as to be elastically deformable in response to rotational fluctuations between the input member 10 and the output member 12. Retainers 16, 18 for retaining a coil spring are attached to both ends of each coil spring 14, the retainers 16, 18 being injection molded parts made of resin material. The retainers 16, 18 have a groove-protrusion fitting structure and a face-to-face contact structure between opposing faces in an axial direction and opposing faces in a radial direction with respect to the input member 10 and the output member 12, and provide support structures for the input member 10 and the output member 12 by the retainers 16, 18 themselves. It is possible to produce an assembly in which the coil spring 14 is retained, so as to be elastically deformable in response to rotational fluctuations, between the input member 10 and the output member 12 only by means of the retainers 16, 18, without using rivets or welded structures.

KAKEHI DAIKI (JP)
MURATA YUTAKA (JP)
KOBAYASHI ATSUSHI (JP)
MORI RYUTA (JP)

PCT/JP2022/028327

January 25, 2024

July 21, 2022

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UNIPRES CORP (JP)

F16F15/123; F16F15/134; F16H45/02

JP2017110715A	2017-06-22
JP2012097848A	2012-05-24
JP2002013547A	2002-01-18
JP2002257195A	2002-09-11
JP2012159111A	2012-08-23

MITSUI, Takao (JP)

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