To prevent an operation member from becoming an hindrance in storage, loading, shipping and the like.
An unlocking device for a latch of a swing door includes a swing door arranged in the openable/closable manner to the outside of the front walls with reference to left- and right-front walls of vertical fixed members, a latch-receiver projecting on the front wall of the fixed member and engaged/disengaged with/from a reversal latch in a lock box mounted inside of the swing door; an operation piece internally mounted at a free end of the swing door and provided with an operation part moving fore-and-aft direction via a spindle; and an operating arm provided on the operation piece via a movable shaft to co-operate with the operation piece and unlocking a locking piece for the reversal latch in the lock box. When the door is closed, the reversal latch engaged with the latch-receiver is locked with the locking piece. When the operation piece is pulled, the locking piece is unlocked by displacement of the operating arm abutting on a receiving arm provided to the locking piece.
| JP2015129391 | LATCH LOCK FOR FIRE DOOR |
| JP2020535337 | Window fastener |
MOTONAGA TSUGIHIRO
KOTOKU MASAHIRO
MIWA LOCK KK
| JP2008050864A | 2008-03-06 | |||
| JPH08100559A | 1996-04-16 | |||
| JP2008240265A | 2008-10-09 | |||
| JPH0320688U | 1991-02-28 |
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