| 摘要 |
PROBLEM TO BE SOLVED: To provide a rigid electric traction device for a tunnel, installed in a small space in a narrow tunnel, keeping high current collecting performance without a tension adjuster, and strong. SOLUTION: Two or more support members 1 are fixed at spaces from each other on a ceiling T of a tunnel, and a pair of rigid electric traction 2 is supported along the members. A trolley line 3 is held on the rigid electric traction 2. The support member 1 includes an insulator 4 and a support metal fitting 5. The insulator 4 is fixed to a ceiling T at the upper end, and a support bolt 4b is projected from the lower end, to which the support metal fitting 5 is fixed. The support metal fitting 5 includes a fitting part 5a extended horizontally along the ceiling T, and support parts 5b extended from both ends thereof in the opposite directions at right angles in the horizontal direction. The support metal fitting is fixed to the support bolt 4b at the middle of the fitting part 5a, and the rigid electric traction 2 is supported on the lower part of the support part 5b. The rigid electric traction 2 includes: a top plate part 2a and a pair of clamping pieces 2b. Both edges of the top plate part 2a are engaged with the support parts 5b and supported on the support metal fitting 5, thereby holding the trolley line 3 between the paired clamping pieces 2b. COPYRIGHT: (C)2005,JPO&NCIPI
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