| 摘要 |
PROBLEM TO BE SOLVED: To acquire a joining structure of units capable of easily and securely detaching a unit from other unit or locking a joint joining while joining units. SOLUTION: In a joining structure of a unit 20 and a unit 30 freely detaching a display-and-operation unit 20 and an SDH unit 30, a pivotal lever 200 is pivotably set on one unit 20. An engaging projection 210 and an engaging hole 110 are respectively arranged on the pivotal lever 200 and a display-and- operation unit 20 with them mutually engaged in a locked position of the pivotal lever 200, so as to retain the SDH unit 30 and the display-and-operation unit 20 in joining state, and with them mutually detached in except a locked position so as to detach the SDH unit 30 and the display-and-operation unit 20. The display-and-operation unit 20 is structured to be pressed and detached from the SDH unit 30 with the pivotal lever 200 rotated from the locked position in an arrow A direction.
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