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Patent Searching and Data


Title:
LOCK RING FOR PIPE JOINT AND ADJUSTMENT METHOD FOR PIPE JOINT
Document Type and Number:
Japanese Patent JP2017048807
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lock ring for a pipe joint which can easily adjust an engagement degree between the pipe joint and a pipe body, and an adjustment method for the pipe joint.SOLUTION: A lock ring 34 is internally fit to a water service pipe joint, and used for preventing the come-off of a pipe from the water service pipe joint. The lock ring 34 has: an annular ring main body 35 into which the pipe is inserted; and lock pieces 36 which are extended from an internal peripheral edge of the ring main body 35 toward the inside of a radial direction, prevent the come-off of the pipe by biting into the pipe, and are arranged in a plurality of pieces along the internal peripheral edge of the ring main body 35. Slits 40 are formed between the adjacent lock pieces 36, released in first end parts located at tip sides of the lock pieces 36, and closed at second end parts located at base-end sides of the lock pieces 36. Only in one portion out of a plurality of the slits 40, a second end part is formed into a circular hole 40a.SELECTED DRAWING: Figure 2

Inventors:
UENO AKIRA
Application Number:
JP2015170348A
Publication Date:
March 09, 2017
Filing Date:
August 31, 2015
Export Citation:
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Assignee:
ONDA SEISAKUSHO:KK
International Classes:
F16L21/08; F16L37/12