VIBRATION ISOLATOR

摘要

A vibration isolator of the present invention includes a first attachment member (11), a second attachment member (12), an elastic body (13), a partition member (15), and a movable member (23). In addition, a plurality of communicating holes (27a and 27b) extending outward in an axial direction from a portion facing the movable member (23) in the axial direction in a wall surface of an accommodating chamber (18) and configured to communicate the accommodating chamber (18) with a main liquid chamber (16a) or a subsidiary liquid chamber (16b) are provided in the partition member (15), at least one of the plurality of communicating holes (27a and 27b) is a direct coupling hole (27a) configured to directly couple the accommodating chamber (18) with the main liquid chamber (16a) or the subsidiary liquid chamber (16b) in the axial direction, a flow control member (30) positioned at an outside in the axial direction relative to the direct coupling hole (27a) and disposed to overlap the movable member (23) in the axial direction through the direct coupling hole (27a) is further provided, and the flow control member (30) does not come into contact with the movable member (23) deformed in the axial direction when a liquid pressure of the main liquid chamber (16a) varies based on an input from a vibration-generating part.

主权项

1. A vibration isolator in which a plurality of communicating holes extending outward in an axial direction from a portion facing a movable member in the axial direction in a wall surface of an accommodating chamber and configured to communicate the accommodating chamber with a main liquid chamber or a subsidiary liquid chamber are provided in a partition member, and at least one of the plurality of communicating holes is a direct coupling hole configured to directly couple the accommodating chamber with the main liquid chamber or the subsidiary liquid chamber in the axial direction, the vibration isolator comprising:
a first tubular attachment member coupled to one of a vibration-generating part and a vibration-receiving part and a second attachment member coupled to the other part; an elastic body configured to couple the attachment members to each other; the partition member configured to divide a liquid chamber in the first attachment member in which a liquid is sealed into the main liquid chamber having the elastic body as a portion of a wall surface and the subsidiary liquid chamber; the movable member accommodated in the accommodating chamber provided at the partition member deformably or displaceably in the axial direction of the first attachment member; and a flow control member positioned closer to an outside in the axial direction than the direct coupling hole and disposed to overlap the movable member in the axial direction through the direct coupling hole, wherein the flow control member does not come into contact with the movable member deformed or displaced in the axial direction when a liquid pressure of the main liquid chamber varies based on an input from the vibration-generating part.