Title:
TORSIONAL DAMPER
Document Type and Number:
Japanese Patent JP2023043048
Kind Code:
A
Abstract:
To eliminate negative pressure in a space A inside a hub 20.SOLUTION: A torsional damper 10 comprises the hub 20 attached to the shaft 2, a ring-shaped elastic body 30 fitted to an outer periphery of the hub, a ring-shaped damper mass 40 provided on an outer periphery of the ring-shaped elastic body, and a disk-shaped soundproof plate 50 arranged on the side opposite to the shaft with respect to the hub in an axial direction X of the shaft. In the axial direction of the shaft, a gap G is formed between an outer wall of a housing 5 of a device holding the shaft and an end surface 40c of the damper mass closer to the outer wall. In the soundproof plate, an air inflow port 70 penetrating in a thickness direction of the soundproof plate is formed.SELECTED DRAWING: Figure 1
Inventors:
NARITA NOBUHIKO
Application Number:
JP2021150533A
Publication Date:
March 28, 2023
Filing Date:
September 15, 2021
Export Citation:
Assignee:
NOK CORP
International Classes:
F16F15/126; F16F15/12; F16H55/36
Attorney, Agent or Firm:
Ochi International Patent Office