| 摘要 |
A tubular lockset which includes a backset plate and a drive linkage, both of which are integrated within the rear portion of a latch case. The surface of the backset plate and drive linkage are set with slots and openings for the mounting of drive unit at the fore or rear position within the slots. Two protrusions are provided on one end of the drive linkage, such that the foot of the drive unit engages with the protrusion of the drive linkage and drives the latch case forward and backward. An opening is provided on the drive linkage and slot is provided on each backset plate for the fixation of the drive unit, i.e. the drive unit is fixed within the slot of the backset plate and the opening of drive linkage. The backset length of the amphi-latch can be adjusted to either 60 mm (23/8'') or 70 mm (23/4'').
|
