| 摘要 |
PROBLEM TO BE SOLVED: To install and use the same door lock droping bolt as it is even to a door different in the clearance height between the door and a floor surface. SOLUTION: A lock bar 11 is composed of two bodies of a slide bar 19 vertically movably connected to an installation plate 10 and an engaging pin 20 connected in a shaft shape by fitting a base end part 20a to a connecting pipe part 19b of the slide bar. Screw inserting holes 25 and 26 are arranged in the shaft direction on the outer periphery of the connecting pipe part in the slide bar. A female screw hole 30 penetrating in the orthogonal direction to the base end part is arranged in its base end part in the engaging pin. The lock bar is constituted for adjusting the projecting length of the engaging pin to long and short two stages to the slide bar in response to a fitting height position, by adjusting the mutual fitting height position by selecting any of the two screw inserting holes communicating with the female screw hole in response to the clearance height between the door and the floor surface, when connecting the engaging pin to the slide bar. COPYRIGHT: (C)2005,JPO&NCIPI
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