The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1998
Filed:
Jun. 17, 1996
Susumu Niwa, Kani, JP;
Yukihiro Takada, Gifu-ken, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
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.