Fluid pressure cylinder apparatus
AssigneesSMC Corporation, Sakagami Seisakusho Ltd.
InventorsChiaki Fukui, Shigeo Iinuma
Life of this patent
Estimating the term…
Abstract
A fluid pressure cylinder apparatus comprises a cylinder tube integrally connected between a head cover and a rod cover; a piston internally installed in the cylinder tube, for making displacement in accordance with an action of a pressure fluid supplied into the cylinder tube; and a piston rod connected to the piston; wherein a pair of first dust-removing members are installed on an outer circumferential surface of the piston with a piston packing intervening therebetween; and a second dust-removing member and a third dust-removing member are installed to an inner circumferential surface of a support section of the rod cover for the piston rod with a rod packing intervening therebetween.
Claims4
A fluid pressure cylinder apparatus comprising:
- a cylinder tube integrally connected between a head cover and a rod cover;
- a piston internally installed in said cylinder tube for making displacement in an axial direction in accordance with an action of a pressure fluid supplied into cylinder chambers;
- a piston rod connected to said piston;
- a seal member installed to a bearing section of said rod cover;
- and
- a second dust-removing member arranged closely to said cylinder chamber as compared with said seal member, for avoiding any invasion of dust into said seal member, wherein:
- said second dust-removing member is formed of an annular member composed of a fiber material containing a lubricant.
A fluid pressure cylinder apparatus comprising:
- a cylinder tube integrally connected between a head cover and a rod cover;
- a piston internally installed in said cylinder tube for making displacement in an axial direction in accordance with an action of a pressure fluid supplied into cylinder chambers;
- a piston rod connected to said piston;
- a first seal member installed to an outer circumferential surface of said piston;
- a pair of first dust-removing members arranged on said outer circumferential surface of said piston to surround said first seal member, for avoiding any invasion of dust into said first seal member;
- a second seal member installed to a bearing section of said rod cover;
- and
- a second dust-removing member arranged closely to said cylinder chamber as compared with said second seal member, for avoiding any invasion of dust into said second seal member, wherein:
- each of said first dust-removing members and said second dust-removing member is formed of an annular member composed of a fiber material containing a lubricant.
Dependencies are inferred from the claim text.