| 摘要 |
PURPOSE: To provide a cable drag chain that is rigid against bending and torsion, gives no forced bending to a cable and a hose housed therein, is light and inexpensive, causes less abrasion dust, is easy to assemble and to maintain and inspect, and causes less noise. CONSTITUTION: The cable drag chain is so constructed that a plurality of tubular middle frames 1 have a pair of coupling pin portions 14 and a pair of pin hole portions 15 respectively at a front end 12 and a rear end 13, the end faces of the front end 12 and the rear end 13 are formed as stopper faces for regulating the angle of bending, the coupling pin portions 14 and the pin hole portions 15 of adjoining middle frames 1 are fitted to couple the plurality of middle frames 1, and the periphery of the coupling region of adjoining middle frames 1 is covered with a tubular outer frame 2 detachably mountable on the middle frames 1 to seal the gap between the middle frames 1.
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