| 摘要 |
PROBLEM TO BE SOLVED: To correct the location of a lock hole and eliminate play by making a lock hole into which a latch head is fitted a cylindrical hole which is eccentric from the center of the outer peripheral part of an eccentric ring and rotating the eccentric ring within a recessed part formed on a door frame. SOLUTION: A strike to be used for a latch lock is constituted of an eccentric ring 51 of a cylindrical shape with bottom, is fitted into a recessed part 39 formed on a door frame 4 and is fixed with a machine screw 40. A lock hole 6 of a latch head 3A is formed within the eccentric ring 5 and the lock hole 6 is formed into a cylindrical shape which is eccentric from the center of the outer peripheral part of the eccentric ring 51. A permanent magnet 13 is stored in a storing hole 52 at the depth of the lock hole 6 and is fixed within a door frame 4 by the machine screw 40, together with a pressing plate 53 and the eccentric ring 51. By providing an engagement groove 54 on an end face on the side of an opening of the eccentric ring 51 and rotating the eccentric ring 51 around the machine screw 40 by a driver, the location of the lock hole 6 on which the latch head 3A is abutted is rationalized and the play of a door at the time of a lock is corrected. |
