JPH02117404U

JPH02117404U -

Info

Publication number: JPH02117404U
Application number: JP2557689U
Authority: JP
Priority date: 1989-03-08
Filing date: 1989-03-08
Publication date: 1990-09-20

Description

[Brief explanation of drawings]

第１図は液圧シリンダの側面図、第２図は液圧
シリンダの正面図、第３図は薄肉部を変形させる
前の状態における要部の断面図、第４図は薄肉部
を変形させて突出部分をロツドカバーの切欠部に
係合した状態における要部の断面図、第５図はシ
リンダチユーブの両端にロツドカバーを設けてピ
ストンロツドを両側に突出させた他の実施例の側
面図、第６図は従来の回り止め機構を施した液圧
シリンダの要部の断面図、第７図は従来の回り止
め機構によりロツドカバーをロツクした状態にお
ける液圧シリンダの要部の断面図である。図中、１１は液圧シリンダ、１２はシリンダチ
ユーブ、１３はピストン、１４はロツドカバー、
１５は貫通孔、１６はピストンロツド、１８は溝
、１９は薄肉部、２１は鍔部、２２は切欠部であ
る。 Fig. 1 is a side view of the hydraulic cylinder, Fig. 2 is a front view of the hydraulic cylinder, Fig. 3 is a sectional view of the main part before the thin wall part is deformed, and Fig. 4 is a sectional view of the main part before the thin wall part is deformed. Fig. 5 is a side view of another embodiment in which rod covers are provided at both ends of the cylinder tube so that the piston rod protrudes on both sides; The figure is a cross-sectional view of the main part of a hydraulic cylinder equipped with a conventional anti-rotation mechanism, and FIG. 7 is a cross-sectional view of the main part of the hydraulic cylinder with the rod cover locked by the conventional anti-rotation mechanism. In the figure, 11 is a hydraulic cylinder, 12 is a cylinder tube, 13 is a piston, 14 is a rod cover,
15 is a through hole, 16 is a piston rod, 18 is a groove, 19 is a thin wall portion, 21 is a flange portion, and 22 is a notch portion.

Claims

[Claims for Utility Model Registration] A piston is slidably provided in a cylinder tube having an opening at its end, the piston rod is inserted into a through hole of a rod cover that closes the opening of the cylinder tube, and the piston rod is inserted into the piston. In the hydraulic cylinder connected to the cylinder tube, a groove is formed near the open end surface of the outer surface of the cylinder tube, a thin wall part is formed between the groove and the open end surface, and the flange of the rod cover that comes into contact with the open end surface of the cylinder tube is provided with a groove. , a hydraulic cylinder in which the cylinder tube has a notch which is opened at least on the open end surface side, the thin wall portion of the cylinder tube is deformed to protrude toward the flange side of the rod cover, and this protruding portion is engaged in the notch of the rod cover. Rotation prevention mechanism for the rod cover.