Patent ID: 8196700

Claim:
An anti-vibration device comprising: an outer cylinder which is connected to one of a vibration generating portion and a vibration receiving portion; an attachment member which is connected to the other of the vibration generating portion and the vibration receiving portion; a rubber elastic portion which elastically connects the outer cylinder to the attachment member; a primary liquid chamber which encloses a liquid therein by using the rubber elastic portion as a part of a partition wall and an internal volume of which changes by deformation of the rubber elastic portion; a secondary liquid chamber which encloses a liquid therein by using a diaphragm as a part of a partition wall and is able to expand and contract; an orifice which allows the primary liquid chamber and the secondary liquid chamber to communicate with each other; a division member which includes a first division plate forming a part of the partition wall of the primary liquid chamber and a second division plate forming a part of the partition wall of the secondary liquid chamber and disposed so as to face the first division plate, and is disposed between the primary liquid chamber and the secondary liquid chamber; a movable plate which displaces in accordance with a pressure difference between the primary liquid chamber and the secondary liquid chamber; and a movable plate receiving portion which is formed between the first division plate and the second division plate disposed so as to face each other, and has the movable plate disposed therein, wherein the first division plate and the second division plate are integrally formed, wherein the movable plate is configured to be insertable into the movable plate receiving portion from an opening formed in a part of a side wall connecting the first division plate and the second division plate, and the orifice is formed at a position not interfering with the movable plate receiving portion in the division member.