JPH0475203U

JPH0475203U -

Info

Publication number: JPH0475203U
Application number: JP11816990U
Authority: JP
Priority date: 1990-11-09
Filing date: 1990-11-09
Publication date: 1992-06-30

Description

[Brief explanation of the drawing]

第１，３，４図はそれぞれ本考案の一実施例に
係るクツシヨンパツキンの使用状態を示す要部断
面図、第２図は同実施例に係るクツシヨンパツキ
ンの要部断面図、第５図は一般的な圧力シリンダ
の概略断面図、第６，７，８図はそれぞれ従来の
クツシヨンパツキンの使用状態を示す要部断面図
である。１２……凹溝、２０……クツシヨンカラー（摺
接部材）、５０……クツシヨンパツキン、５４…
…パツキン本体、５６……内方突部、５７……ク
ツシヨン室側端面、５８……端面流路用溝、６１
……反クツシヨン室側端面、６２……軸方向突部
、６４……テーパ面。 1, 3, and 4 are sectional views of the essential parts of the cushion packing according to an embodiment of the present invention, respectively, showing how the cushion packing is used; FIG. 2 is a sectional view of the principal parts of the cushion packing according to the same embodiment; The figure is a schematic cross-sectional view of a general pressure cylinder, and FIGS. 6, 7, and 8 are cross-sectional views of essential parts showing how a conventional cushion packing is used. 12...Concave groove, 20...Cushion collar (sliding member), 50...Cushion gasket, 54...
...Packing body, 56...Inner protrusion, 57...Cushion chamber side end face, 58...End face channel groove, 61
. . . End surface opposite to the cushion chamber, 62 . . . Axial protrusion, 64 . . . Tapered surface.

Claims

[Claims for Utility Model Registration] 1. The reciprocating movement on the surface of a sliding contact member that is installed movably in the axial direction in a concave groove that is continuous in the circumferential direction formed in the pressure cylinder and that reciprocates relatively in the axial direction. A cushion packing for a pressure cylinder that performs a cushioning action by making sliding contact as appropriate according to the axial reciprocation of the sliding contact member and sealing the cushion chamber formed in accordance with the reciprocating movement of the sliding contact member in the axial direction. a main body, an inward protrusion integrally formed with the packing so as to extend continuously in the circumferential direction on the inner peripheral surface of the packing main body facing away from the cushion chamber, and a center of the end surface of the packing main body facing away from the cushion chamber. An axial protrusion formed continuously in the circumferential direction on the end face opposite to the cushion chamber so that only the vicinity thereof is in pressure contact with the inner wall of the concave groove, and the end face of the packing body on the cushion chamber side communicate fluid in a radial direction. A cushion packing for a pressure cylinder, having a groove for an end face passage formed in the end face so as to have a groove. 2. The axial projection has a tapered surface formed on the outer diameter side of the axial projection so that only the axial projection comes into pressure contact with the inner wall of the concave groove. Cushion packing for pressure cylinders.