To provide a liquid-sealed type vibration control device capable of improving a sealing performance of an air chamber.SOLUTION: A liquid-sealed type vibration control device includes: a first fixture and a cylindrical second fixture; a vibration control substrate; a diaphragm; a partition body partitioning a liquid chamber into a first liquid chamber on the vibration control substrate side and a second liquid chamber on the diaphragm side; an orifice communicating the first liquid chamber with the second liquid chamber; and an air chamber forming member having an annular flange protruding to a radial outer side, and forming an air chamber with the diaphragm on a side opposite from the second liquid chamber. The annular member includes an annular inner portion to which an outer edge of the diaphragm is fixed over a whole periphery, and an annular outer portion continued to an outer periphery of the inner portion and protruding stepwise with respect to the inner portion to a side opposite from the vibration control substrate. The second fixture includes an annular holding portion pressing and holding the outer portion and the flange to the vibration control substrate side.SELECTED DRAWING: Figure 1
【課題】空気室のシール性を向上できる液封入式防振装置を提供すること。【解決手段】液封入式防振装置は、第1取付具および筒状の第2取付具と、防振基体と、ダイヤフラムと、液室を防振基体側の第1液室とダイヤフラム側の第2液室とに仕切る仕切体と、第1液室と第2液室とを連通するオリフィスと、径方向外側に張り出す環状の鍔部を有し、第2液室の反対側でダイヤフラムとの間に空気室を形成する空気室形成部材と、を備える。環状部材は、ダイヤフラムの外縁部が全周に亘って固定される環状の内側部と、内側部の外周に連なって内側部に対し段差状に防振基体とは反対側へ張り出す環状の外側部と、を備える。第2取付具は、外側部および鍔部を防振基体側へ押し付けて保持する環状の保持部を備える。【選択図】図1
LIQUID-SEALED TYPE VIBRATION CONTROL DEVICE
液封入式防振装置
2022-06-22
Patent
Electronic Resource
Japanese