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(11) | EP 0 892 129 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Lock |
| (57) A lock comprises a body having first (14) and second (22) opposite side plates each
having an orifice (16, 20) therein so as to form a passage therebetween. A cylindrical
lock cylinder (2) passes through the passage and is driveably connected with a rotatable
cam (8). A bolt member is mounted for movement relative to the body and is moveable
by the cam (8). The lock cylinder (2) is received by first and second close-fitting
sleeves (12, 24) which are secured thereto, the second sleeve (24) being removably
secured, such that an inner end of each of the first and second sleeves (12, 24) abuts
the first and second side plates (14, 22) respectively, so as to prevent axial movement
of the lock cylinder (2). The first sleeve (12) has at least one projection (12b)
on its inner end (12a) which is received in the orifice (16) of the first side plate
(14) and is a close fit therein, so as to substantially prevent rotation of the first
sleeve (12). The first side plate (14) has an upstanding ridge (18a) on an inner face
(14a), which is located such that when the lock is in the locked position it is adjacent
the cam (8) and sufficiently limits axial movement of the lock cylinder (2) that the
at least one projection (12b) on the first sleeve (12) is not completely disengageable
from the orifice (16) in the first side plate (14) even when the second sleeve (24)
is removed, whereas when the lock is in an open position such axial movement is not
limited by the ridge (18a) (Fig 2). |