FASTENING CONDITION VISUALLY CHECKING MEMBER IN FASTENING PART AND FASTENING CONDITION VISUALLY CHECKING SET MEMBER IN FASTENING PART

摘要

PROBLEM TO BE SOLVED: To maximally reduce failure in fastening and fastening negligence in a fastening part and to check whether a fastening condition is good or not from a distance. ;SOLUTION: A fastening condition visually checking member 1 provided with an insertion hole, through which a fastening member such as a bolt and a machine screw can be passed, of which a fastening part, is constructed of soft material such as rubber and formed into a ring shape, for example. In the fastening part, the fastening condition visually checking member 1 is arranged between fastening members such as a bolt and nut, between a fastening member and a fastened body, or between fastened bodies, and according to progress of fastening, the checking member 1 is clamped and pressed by means of both side members clamping the checking member 1 and deformed so as to be extended in the direction toward the face crossing an axis 3 of the insertion hole, and as a result, an outer circumferential edge 4 of the checking member 1 is protruded outward beyond the edge part (a) of the fastening members and the like so as to form a projection part 5, which can be visually checked clearly from a distance.;COPYRIGHT: (C)1999,JPO