Title:
LIQUID-SEALED VIBRATION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2017067123
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce amplitude dependency.SOLUTION: A liquid-sealed vibration control device includes a liquid chamber in which a working fluid is sealed, and a partitioning member 41 for dividing the liquid chamber into a main liquid chamber 1 and a sub-liquid chamber 2. The partitioning member 41 includes an upper plate 42 disposed at a main liquid chamber 1 side, a lower holder 43 disposed at a sub-liquid chamber 2 side, and an elastic partitioning member 44 held by the upper plate 42 and the lower holder 43. The elastic partitioning member 44 includes a thin film portion 44a, and a thick film portion 44b thicker than the thin film portion 44a in a direction of a vibration input shaft. The lower holder 43 is provided with a restricting portion for restricting elastic deformation of the elastic partitioning member 44, the restricting portion includes a first restricting portion disposed in opposition to the thick film portion 44b for restricting a displacement amount of the thick film portion 44b in elastic deformation, and a second restricting portion disposed in opposition to the thin film portion 44a for restricting a displacement amount of the thin film portion 44a in elastic deformation.SELECTED DRAWING: Figure 5
Inventors:
KADOWAKI HIROKAZU
MATSUMOTO KOICHI
MATSUMOTO KOICHI
Application Number:
JP2015191502A
Publication Date:
April 06, 2017
Filing Date:
September 29, 2015
Export Citation:
Assignee:
YAMASHITA RUBBER KK
International Classes:
F16F13/10
Attorney, Agent or Firm:
Isono International Patent and Trademark Office