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1. (WO2018180833) ANTI-ROTATION RING-SHAPED MEMBER, AND COMPRESSED AIR-DRIVEN CHISEL

Pub. No.:    WO/2018/180833    International Application No.:    PCT/JP2018/011279
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 23 00:59:59 CET 2018
IPC: F16B 39/10
B28D 1/26
Applicants: NITTO KOHKI CO., LTD.
日東工器株式会社
Inventors: INAGAKI, Fumio
稲垣 史雄
SHIMADA, Keisuke
嶋田 啓輔
MURAKAMI, Keiichi
村上 慶一
Title: ANTI-ROTATION RING-SHAPED MEMBER, AND COMPRESSED AIR-DRIVEN CHISEL
Abstract:
[Problem] An anti-rotation ring-shaped member that prevents a second element threadably linked to a first element from being rotated in a thread-release direction. [Solution] This anti-rotation ring-shaped member has: a ring-shaped body (32) disposed circumferentially on the front-end outer peripheral surface of a first element (cylindrical chisel body) 26 in a thread-linking portion; a first interlocking part (34) provided to one end of the ring-shaped body; a releasing part (36) provided to the other end of the ring-shaped member; and a second interlocking part (38) provided to an intermediate position therebetween. The first interlocking part circumferentially interlocks the ring-shaped body with the first element, and the second interlocking part engages with a second element (front-end cylindrical member (24)) and inhibits rotation thereof in the thread-release direction. By the releasing part being shifted in a direction toward the one end along the ring-shaped body, the ring-shaped body is curved radially outward and the second interlocking part separates from the second element to allow rotation in the thread-release direction.