| 摘要 |
PROBLEM TO BE SOLVED: To enable a rod part which is a component of an interrupting bar to be easily removed and changed. SOLUTION: The interrupting bar is constituted by connecting a plurality of rod parts in order by inserting an end of one rod part (2) to a hollow (1a) of the other adjacent rod part (1). A tube (2a) for connection of which the outer surface is a flat straight cylindrical surface (P) is shaved out at the edge of a step height part (2b) at the end part of the rod part. Then the tube for connection is loosely inserted to the hollow of the other rod part to the point where an end surface (1b) of the other rod part (1) hits the step height part. Through holes (2c, 1c) are formed at the superimposed part of the tube for connection and the other rod part, and the part between the two rod parts is fixed by the insertion of an anti-disconnection implement (4) to the through holes. Thus, strong fixation between the rod parts can be prevented, and the tube for connection can be easily pulled out of the hollow of the other rod part just by pulling out the anti-disconnection implement from the through holes, and can be replaced with another rod part. COPYRIGHT: (C)2006,JPO&NCIPI
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