| 摘要 |
A removable lock handle assembly comprises a door side casing, a disk-like drive member, an eccentric drive projection provided on the rear surface of the drive member, a driven projection provided on the front surface of the drive member, a removable lock handle having a driven projection to be engaged with the driven projection of the drive member for rotation thereof when the handle is inserted into the casing through a front handle insertion hole thereof, a coil spring fitted in an annular groove formed in a central part of the front surface of the drive member, a latch provided in the casing such as to be projected and retreated from and into the casing through a side hole formed therein, a shutter provided on the back side of the handle insertion hole for closing the hole, the drive member being inserted in the casing, the latch having a driven projection for engagement with the drive projection of the drive member, a return compression coil spring received in a blind hole formed in the latch on the side thereof opposite an inclined cam surface and on the side of the driven projection, a return compression coil spring provided between the latch and the inner surface of the casing, and a rear lid fitted in and secured by a screw to a rear portion of the casing, the latch being retreated into the casing when the drive member is turned by the removable lock handle. |
