JPH0417534U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は両ロツドダンパの縦断面図、第２図は
ロータリーダンパの平面図、第３図は一部破断し
た第２図の矢視図、第４図は第３図の要部拡大
縦断面図、第５図は一部を破断した第２図の矢
視図、第６図は従来の両ロツドダンパの縦断面図
である。 ７，８７……第１の連通路、８，８８……第１
のチエツクバルブ、８ａ，８８ａ……小径のオリ
フイス、１２，９４……第２の連通路、１４，９
５……第２のチエツクバルブ。 Figure 1 is a longitudinal cross-sectional view of both rod dampers, Figure 2 is a plan view of the rotary damper, Figure 3 is a partially cutaway view taken along the arrow in Figure 2, and Figure 4 is an enlarged longitudinal cross-section of the main part of Figure 3. 5 is a partially cutaway view in the direction of the arrow in FIG. 2, and FIG. 6 is a longitudinal cross-sectional view of a conventional double rod damper. 7, 87...first communication path, 8,88...first
Check valve, 8a, 88a...Small diameter orifice, 12,94...Second communication path, 14,9
5...Second check valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ロータリーダンパもしくは両ロツドダンパに温
度補償室を設け、ベーンもしくはピストンにて画
成される２つの油室の一方と前記温度補償室とを
第１の連通路で連通し、該第１の連通路に第１の
チエツクバルブを設けるとともに該第１のチエツ
クバルブに小径のオリフイスを形成し、前記温度
補償室と他方の油室を第２の連通路で連通し、該
第２の連通路に温度補償室側から他方の油室側へ
のオイルの流入のみを許容する第２のチエツクバ
ルブを設けたことを特徴とする油圧緩衝器。 A temperature compensation chamber is provided in the rotary damper or both rod dampers, and one of the two oil chambers defined by a vane or a piston is communicated with the temperature compensation chamber through a first communication path. A first check valve is provided and a small diameter orifice is formed in the first check valve, the temperature compensation chamber and the other oil chamber are communicated through a second communication passage, and the temperature compensation chamber is connected to the second communication passage. A hydraulic shock absorber characterized by being provided with a second check valve that only allows oil to flow from the chamber side to the other oil chamber side.