| 摘要 |
PROBLEM TO BE SOLVED: To provide a protecting metal piece exerting a high reliability pinching force by eliminating fastening with bolt(s) and to provide a fastening method for the metal piece. SOLUTION: The protecting metal piece for a trolley cable connection part is provided with a pair of confronting ear pieces 2 and 3 in strip shape having at the bottom edges, triangular teeth 4 and 5 to mesh with triangular grooves in the trolley cables T1 and T2, at the top edges, abutting surfaces 6 and 7, and in the central part, provisionally fastening screw engaging holes 12 and 13 and a plurality of rivet inserting holes 10 and 11. In the condition that the connection part between the trolley cables T1 and T2 is pinched between the two ear pieces 2 and 3, a rivet 15 is set in the inserting holes 10 and 11 in the ear pieces 2 and 3, and in this condition, the ear pieces 2 and 3 are together with the cables T1 and T2, installed between a pair of confronting dies D1 and D2 of a compressor. All rivets 15 are compressed between the two dies simultaneously at a uniform pressure, and the two ends of each rivet 15 are arranged to be flush with the outside surfaces of the ear pieces 2 and 3. COPYRIGHT: (C)2006,JPO&NCIPI
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