Abstract

The invention relates to apparatus (1) adapted for locking and unlocking a closure (not shown), comprising a housing (2), a bolt (3) reciprocable between respective locked (Fig.1) and unlocked positions, a deadbolt (4) operative to engage and disengage the bolt (3) in the respective positions, and a mechanism (5) including a combination lock means (6) for operating the deadbolt (4), the arrangement being such that on operation of the mechanism (5) the bolt (3) can be moved between the respective locked and unlocked positions of the apparatus (1) consequent on settings of the combination lock means (6).

IPC Classes  ?

• E05B 37/12 - Permutation locksPuzzle locks with tumbler discs on several axes
• E05B 65/00 - Locks for special use
• E05C 1/00 - Fastening devices with bolts moving rectilinearly
• E05C 1/04 - Fastening devices with bolts moving rectilinearly without latching action with operating handle or equivalent member rigid with the bolt

Abstract

The invention relates to a lock (5) for a hinged closure, comprising a housing (8) adapted to be mounted on a frame (3) of the closure, and seating internally thereof a bolt device (4) reciprocable relative to the housing between respective open and closed positions of the closure and having a throw of substantially 70mm to bridge in use a gap between the frame and a facing keeper, characterised by a Eurocylinder lock means (5) adapted to engage and retain the bolt (4) in the locked, or closed, position of the closure. There is also disclosed means to protect the said lock (5) against vandalism, the means comprising in disclosed embodiments a cover plate (305,305a), an inclined escutcheon (6), or smooth fillet weld(s) securing the escutcheon (6) to the housing (8).

IPC Classes  ?

• E05B 17/20 - Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
• E05B 65/00 - Locks for special use
• E05C 1/04 - Fastening devices with bolts moving rectilinearly without latching action with operating handle or equivalent member rigid with the bolt