| 摘要 |
PROBLEM TO BE SOLVED: To obtain a lock, in which the place of a lever can be held temporarily at a fixed place when a door is closed by a simple structure and which can prevent mischief. SOLUTION: In the lock, which has (a) a lever receiving section fixed at the end section of the door, (b) fixed sections with fixed bases, (c) a call-in section being oppositely faced to the fixed base on the rear side through a pair of studs inserted to the front and rear of the end section of a vertical frame body and fixing a call-in substrate on the front side by a call-in bolt, and (d) a rotary section with a lever unified with a shaft base with a discoid guide plate and in which (e) the rotary section cannot be extracted on the rear sides of the fixed sections and can be rotated around an axial center, (f) symmetrical chamfer and arcuate beltlike slot having centers on the same circumference of the front of the guide plate are disposed adjacently and stepped pin-holes are bored at corresponding places to the chamfer in the fixed bases, and (g) pins, to which pivots and columnar bodies are connected continuously, and pressure shafts with springs capable of being housed in columnar bodies and a cap are inserted to the stepped pin-holes and the rear ends of the pivots can be projected and retracted from the rears of the fixed bases.
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