FALL-OFF PREVENTING TOOL - Chuoharashi Industry Co., Ltd

Title:

FALL-OFF PREVENTING TOOL

Document Type and Number:

Japanese Patent JP3848309

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a fall-off preventing tool capable of sufficiently exerting fall-off preventing function during mounting, easy to attach/detach and reusable after detached.
SOLUTION: The fall-off preventing tool comprises a first coil spring part having an element wire coiled on the basis of almost the same diameter, an attachment knob part continuously extending from the base end of the first coil spring part, a detachment knob part continuously extending from the base end of the first coil spring part, and a second coil spring part continuously extending from the front end of the detachment knob part. The first coil spring part has an inner diameter smaller than the outer diameter of a leg portion of a bolt to be fitted thereto. The detachment knob part is protruded to the radial direction of the leg portion of the bolt. The inner diameter of the second coil spring part at its base end, when coiled, is almost the same as the inner diameter of the first coil spring part and gradually getslarger as going to the front end.

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Inventors:

Masamichi Soeda
Yuichi Ito
Yuki Goto

Application Number:

JP2003319163A

Publication Date:

November 22, 2006

Filing Date:

September 11, 2003

Export Citation:

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