Title:
DYNAMIC DAMPER
Document Type and Number:
Japanese Patent JP2019148303
Kind Code:
A
Abstract:
To provide a dynamic damper having a novel structure which can obtain spring characteristics different in intersecting two directions, and can perform tuning at a resonance frequency while securing a stable support spring characteristic of a mass member and a deformation form, in a rubber elastic body which is shear-deformed.SOLUTION: In a shear-type cylindrical dynamic damper 10 which is shear-deformed when vibration in an axial orthogonal direction of a shaft 16 is applied to a pair of elastic support bodies 14, 14 for elastically supporting both-side portions of a cylindrical mass member 12 in the axial direction to the shaft 16, an inside elastic body 30 covering an internal peripheral face of the mass body 12 is formed at the elastic support members 14, 14 integrally therewith, bore holes 32, 32 extending in the inside elastic body 30 in the axial direction are formed in a pair while being positioned so as to oppose each other in the axial orthogonal direction, and an elastic connecting part 40 for connecting the both-side elastic support bodies 14, 14 in the axial direction is formed at an internal peripheral side of the bore holes 32. 32.SELECTED DRAWING: Figure 1
Inventors:
AKIYAMA YOSHICHIKA
MATSUMOTO YUKI
MATSUMOTO YUKI
Application Number:
JP2018033649A
Publication Date:
September 05, 2019
Filing Date:
February 27, 2018
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD
International Classes:
F16F15/126; F16F15/10; F16F15/12
Attorney, Agent or Firm:
Kasai Nakane International Patent Office
Yoshitaka Kasai
Nakane Mie
Yoshitaka Kasai
Nakane Mie