Hydraulic cylinder and assembly method thereof

Details Hydraulic cylinder and assembly method thereof Hydraulic cylinder and assembly method thereof

1996-06-17

1998-08-04

Richter, Sheldon

Expansible chamber devices

With assembly or disassembly facilitating means

92168, F04D 1002

Patent

active

057877939

ABSTRACT:
A hydraulic cylinder with which it is possible to promote cost reduction and weight reduction by reducing the number of parts, ensure that a sealing function is fully performed and also make possible a reduction in size comprises a cylinder tube 4, a piston 1 slidably installed inside this cylinder tube 4, a rod 6 connected to the piston, a bearing 9 supporting the rod 6, a tubular cylinder head 10 mounted in the front end of the cylinder tube and seals 12 and 13 mounted in contact with the rod 6 on an inner circumferential surface of the cylinder head 10; a cylindrical recess 19 is formed in the front end of the cylinder tube 4, the radius R of this cylindrical recess 19 is made larger by a predetermined dimension than the radius r of a piston sliding surface formed on the cylinder tube 4, a screw thread 19a is formed in this cylindrical recess 19, the cylinder head 10 is screwed into this cylindrical recess 19 and the bearing 9 supporting the rod 6 is mounted on an inner circumferential surface of this cylinder head 10.

REFERENCES:
patent: 2533531 (1950-12-01), Stephens
patent: 2549818 (1951-04-01), Joy
patent: 2865401 (1958-12-01), Majneri

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