SPLIT RING OF ACCUMULATOR

摘要

PROBLEM TO BE SOLVED: To prevent the fatigue failure of an intake/exhaust cylinder being an insertion body by a split ring, by forming of a specific number of C-type ring parts, the splint ring engaged with the locking part of the insertion body inserted in the end part of a container main body. SOLUTION: An intake/exhaust cylinder 11 being an insertion body is inserted and attached in the bottom part 10 of a container main body 1, and a locking part 15 is arranged on the intake/exhaust cylinder 11. The locking part 15 is annually formed, and the height and hooking length thereof are suitably arranged. A split ring 20 is inserted and attached to the upper end part 11c of the intake/exhaust cylinder 11. The split ring 20 is formed into a cylindrical body, and divided into three C-type ring parts by projecting an engaging part on the lower inner surface of a straight cylindrical part. The intake/exhaust cylinder 11 is moved in a tightening axial direction by a nut 30, and sandwiched by the engaging part of the split ring 20 brought into pressure contact with the locking part 10c of a bottom part 10, and the nut 30. When pressure liquid P goes in and out from the inside of a liquid chamber 3, stress concentration is generated at the root of the locking part 15 of the intake/ exhaust cylinder 11 through the split ring 20. The split ring 20 comprises three C-type ring parts, therefore, stress is dispersed into three so as to reduce stress concentration, and fatigue failure can be prevented.