JPH03107565U

JPH03107565U -

Info

Publication number: JPH03107565U
Application number: JP1596090U
Authority: JP
Priority date: 1990-02-20
Filing date: 1990-02-20
Publication date: 1991-11-06

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係るピストン組立体
の断面図、第２図は分解斜視図、第３図および第
４図はそれぞれ従来技術に係るピストン組立体の
断面図である。１……ロツド、２……環状溝、３……第１のピ
ストン部材、４……円筒部、５……外周フランジ
、６……第２のピストン部材、７……円筒体、８
……内周フランジ、９……ストツパ、１０……外
周突出部分、１１……ピストンシール、１２……
ウエアリング、１３……マグネツト、１４……第
２の環状溝、１５……Ｏリング。 FIG. 1 is a sectional view of a piston assembly according to an embodiment of the present invention, FIG. 2 is an exploded perspective view, and FIGS. 3 and 4 are sectional views of a piston assembly according to the prior art. DESCRIPTION OF SYMBOLS 1... Rod, 2... Annular groove, 3... First piston member, 4... Cylindrical part, 5... Outer periphery flange, 6... Second piston member, 7... Cylindrical body, 8
...Inner flange, 9...Stopper, 10...Outer protrusion, 11...Piston seal, 12...
Wear ring, 13... Magnet, 14... Second annular groove, 15... O-ring.

Claims

[Scope of utility model registration request]

In a piston assembly in which a cylindrical piston is fixed to the outer periphery of a rod, a first flange 5 is provided at one axial end of a cylindrical portion 4 that is slidably fitted to the outer periphery of the rod 1 and extends toward the outer periphery. a second piston member 6 having an inner periphery flange 8 facing inward at one axial end of a cylindrical body 7 fitted on the outer periphery of the cylindrical portion 4; It has an annular stopper 9 that is engaged with an annular groove 2 formed on the outer peripheral surface, and the stopper 9 is divided into a plurality of pieces in the circumferential direction.
A piston assembly characterized in that a portion 10 projecting outward from the outer circumferential surface of the rod 1 is held between the cylindrical portion 4 and the inner flange 8.