| 摘要 |
PROBLEM TO BE SOLVED: To reduce a coupling lock member in the width direction in the locking mechanism of a rail-mounted apparatus and to increase its assembling operability. SOLUTION: This rail-mounted apparatus is constituted, in such a way that a coupling lock member 23 which is coupled to, and detached from, a support rail 29 is placed to slide freely and operated in a direction at right angles to a rail groove 21 which is formed on the rear of a case, that a contilever-shaped coupling arm 28 which is directed in a lock release direction is formed integrally at the coupling lock member 23, that a positioning and coupling part 29 to which a free end part 28a of the coupling arm 28 is recess-fitted and formed on the rear of the case, that the coupling arm 28 and the positioning and coupling part 29 are moved relatively, due to the slide of the coupling lock member 23 and that the coupling arm 28 is elastically deformed in the front-and-rear directions of the case.
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