| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid sealed type vibration-proof device capable of performing both restriction of irregular sound and reduction of vibration generated by deformation of a resilient partition film.SOLUTION: When a first liquid chamber 23 becomes a negative pressure state, a resilient partition film 50 is substantially deformed toward the first liquid chamber 23, and a second valve part 54 of the resilient partition film 50 is spaced apart from a second member 40, liquid in the second chamber 24 flows into the first liquid chamber 23 through a second hole part 49, a clearance between the second valve part 54 and the second member 40, a through-pass hole 57 and an outer circumferential hole part 66. Since a negative pressure in the first liquid chamber 23 can be eliminated, it is possible to restrict irregular noise caused by cavitation. Since a first protrusion 58 protruded from a first film surface 51 at a central part 55 is pushed by a first member 60 and closely contacted between the first hole part 65 and the outer circumferential hole part 66, it is possible to restrict irregular noise generated by abutment of the first film surface 51 of the resilient partition film 50 against the first member 60.SELECTED DRAWING: Figure 1 |
