Title:
VIBRATION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2018155286
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress striking sound that is generated when a movable member is deformed or displaced and collides with an inner surface of an accommodation chamber.SOLUTION: A vibration control device comprises: a cylindrical first fitting member 11 which is fitted to any one of a vibration generation part and a vibration receiving part; a second fitting member 12 which is fitted to the other part; an elastic body 13 coupling the first fitting member and the second fitting member with each other; a partition member 26 partitioning a liquid chamber 16 in the first fitting member in which a liquid is encapsulated, into a first liquid chamber 16a with the elastic body defined as a part of a wall surface and a second liquid chamber 16b; and a movable member 19 which is accommodated within an accommodation chamber 17 provided in the partition member in such a manner that the movable member can be deformed or displaced. In the partition member, multiple communication holes 20 communicating the first liquid chamber and the second liquid chamber through the inside of the accommodation chamber are formed. On opposite surfaces 17a and 17b facing the movable member in an inner surface of the accommodation chamber, the communication holes are opened and multiple projections 22 protruding towards the movable member are formed. The multiple projections are disposed over all the opposite surfaces.SELECTED DRAWING: Figure 1
Inventors:
SATAKE YUKI
NAGASAWA MASAKAZU
KOBAYASHI MASAHITO
UEKI SATORU
NAGASHIMA YASUYUKI
NAGASAWA MASAKAZU
KOBAYASHI MASAHITO
UEKI SATORU
NAGASHIMA YASUYUKI
Application Number:
JP2017051009A
Publication Date:
October 04, 2018
Filing Date:
March 16, 2017
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
F16F13/10
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Hiroki Ninai
Makiko Otsuki
Tadashi Takahashi
Hiroki Ninai
Makiko Otsuki