Title:
ANTIVIBRATION DEVICE
Document Type and Number:
Japanese Patent JP2019196811
Kind Code:
A
Abstract:
To provide an antivibration device for securing damping force while suppressing an increase in the size and for allowing easy assembly while securing orifice groove sealing ability of a lid body.SOLUTION: The antivibration device includes a partition member 15 formed with a restriction passage 21 communicating a first liquid chamber 26 and a second liquid chamber 27, the partition member including an annular elastic part 32 of which the radial outer end is connected to an outside mounting member 11, and an annular rigid part 33 to the inside of which an inside mounting member 12 is fitted and of which the radial outer end is connected to the elastic part, the rigid part including a rigid part body 34 having an orifice groove 33a formed in one end face directed to one axial side to communicate the first liquid chamber and the second liquid chamber, and a lid body 22 arranged on one end face of the rigid part body for closing an opening on one axial side of the orifice groove to define the restriction passage, the rigid part body having one end face where a press-fit hole 34a is formed into which the lid body is pressed.SELECTED DRAWING: Figure 1
Inventors:
SAITO AKIHIRO
Application Number:
JP2018091481A
Publication Date:
November 14, 2019
Filing Date:
May 10, 2018
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
F16F13/10
Domestic Patent References:
| JP2011511231A | 2011-04-07 | |||
| JP2002266929A | 2002-09-18 | |||
| JPH0238730A | 1990-02-08 |
Attorney, Agent or Firm:
Sumio Tanai
Nishizawa Kazumi
Hiroki Ninai
Makiko Otsuki
Nishizawa Kazumi
Hiroki Ninai
Makiko Otsuki