| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a door scope improving a crime preventive function by preventing detachment from the outdoor side with simple constitution. <P>SOLUTION: This door scope is mounted to hold a door 5 with a first cylinder body 1 and a second cylinder body 2 inserted to face and screwed in a door scope mounting hole 6. The first cylinder body 1 with a deformed cross section shape part 10a such as a segmental form is mounted into the door scope mounting hole 6 formed in the same shape, and provided with an outer fitting ring 3 externally fitted and held in a relatively rotatable manner to an outdoor side flange part 9 of the first cylinder body 1. The outer fitting ring 3 is regulated in axial movement to the outdoor side by the outdoor side flange part 9 of the first cylinder body 1 and to the indoor side by a locking ring member 4 mounted to the outer peripheral surface of the first cylinder body 1, while maintaining the relatively rotatable relation to the first cylinder body 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
