| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To surely realize a function of an inside/outside air pressure difference dissolving device. <P>SOLUTION: The inside/outside air pressure difference dissolving device in a latch lock includes: inner and outer operation members provided on a door and provided with an operation piece projected inside a lock box; a drive member provided inside the lock box at a free end part of the door and operated by operation force of either one of the inner and outer operation members; a latch regulation member provided inside the lock box, for releasing the regulation of a latch member by drive force of the drive member; and a pressurizing member moved in the horizontal direction by the further drive force of the drive member, for turning press contact force of being in press contact with an abutting part on a door frame side to reaction acting in a direction of opening the door. In the inside/outside air pressure difference dissolving device, the drive member includes a drive slider and a cooperating lever pivoted to a spindle present at a position separating from the operation piece by a prescribed interval so as to follow or cooperate with the drive slider, and a timing lag means for the pressurizing member, which starts the pressurizing member after the latch regulation member releases the regulation of the latch member by the drive force is provided between the drive member and the pressurizing member. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
