LIQUID SEALED DAMPER FOR OPENING AND CLOSING BODY

To provide a liquid sealed damper for an opening and closing body for actualizing a reduction in size while securing the size of an opening part of an orifice passage.SOLUTION: The liquid sealed damper for the opening and closing body, which has a mounting part 2 mounted on one of an opening part of a vehicle and the opening and closing body covering the opening part of the vehicle and an abutment part 3 on which the other abuts, includes: an insulator 4 connecting the mounting part 2 and the abutment part 3 while preventing the vibration thereof; a main liquid chamber 5 into which working liquid is filled; a sub liquid chamber 6 in which a part of a wall part is formed of a diaphragm 9; and an orifice passage 8 formed in a partition member 7 to communicate the main liquid chamber 5 with the sub liquid chamber 6. The partition member 7 has an approximately circular surface forming a part of the wall part of the main liquid chamber 5. In the circular surface, an opening part 83 at one end of the orifice passage 8 is formed. The opening part 83 is formed opening in a range from the outer edge to the central part of the circular surface.SELECTED DRAWING: Figure 3 【課題】オリフィス通路の開口部の大きさを確保しつつ、小型化を実現する開閉体用液封ダンパを提供する。【解決手段】車両の開口部及び車両の開口部を覆う開閉体の一方に取り付けられる取付部２と、他方の当接を受ける当接部３とを有する。取付部２と当接部３とを防振して連結するインシュレータ４と、作動液体が封入される主液室５と、壁部の一部がダイヤフラム９で形成される副液室６と、仕切部材７に形成され、主液室５と副液室６と連通するオリフィス通路８と、を備える。仕切部材７は、主液室５の壁部の一部をなす略円形状の面を有しており、円形状の面には、オリフィス通路８の一端の開口部８３が形成されている。開口部８３は、前記円形状の面の外縁部から中央部に亘って開口形成されている。【選択図】図３