| 摘要 |
A first vertical frame of a frame structure is supported on one side portion of a door by hinges. A latch tacker is attached to a strike that is provided on a second vertical frame of the casing. The latch tacker has a shape such that a latch bolt of a lock body on the door can be held at least from both above and below. A latch bolt receiving aperture is formed in the latch tacker. The latch tacker is fitted into the strike, and the latch bolt is inserted into the latch bolt receiving aperture, whereupon the second vertical frame is supported on the other side portion of the door by the latch tacker.
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