| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a circular washer and a circular washer set enabling a cover to be easily installed and the cover to be removed without damaging a door. <P>SOLUTION: This circular washer 1 used for a lock attached to the door includes a peripheral surface 12 of circular shape in cross section, a surface 17 positioned on the front side when the circular washer is attached to the door 3, and a rear surface 18 hidden when the circular washer is attached to the door. A plurality of locking parts 13 are provided to the peripheral surface. The locking part 13 includes a side surface which extends in the combined direction of the rear surface direction and the peripheral direction after extending from the front surface to the rear surface and which faces the rear surface. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
