A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved locks and locking mechanisms
A lock has a cam 2 in a cylinder, a drive and a securing means; a key is inserted into a keyhole in at least one end of the cylinder causing the drive 104 to release the securing means 6 and enable the cam to rotate, disengaging a door bolt. Preferably the securing means has a spring 13 urging a pin towards the cam. The drive assembly may have a spool 7, engaging the securing pin and having two different diameter portions, displaced so the pin engages the smaller diameter when the keys inserted. Preferably, at one end of the drive, a top-hat bush 1 is fixed to the cam and a drive dog 14 is attached to it by protrusions engaging two or more holes and a slot; should this end of the cylinder detach from the lock, and the dog separates from the bush, a shutter 10 seals the end of the bush, the lock may still be opened with a key. At the other end of the drive there may be a sprung override plunger 9 displacing the spool when pressed against the springs 4.
Improved locks and locking mechanisms
A lock has a cam 2 in a cylinder, a drive and a securing means; a key is inserted into a keyhole in at least one end of the cylinder causing the drive 104 to release the securing means 6 and enable the cam to rotate, disengaging a door bolt. Preferably the securing means has a spring 13 urging a pin towards the cam. The drive assembly may have a spool 7, engaging the securing pin and having two different diameter portions, displaced so the pin engages the smaller diameter when the keys inserted. Preferably, at one end of the drive, a top-hat bush 1 is fixed to the cam and a drive dog 14 is attached to it by protrusions engaging two or more holes and a slot; should this end of the cylinder detach from the lock, and the dog separates from the bush, a shutter 10 seals the end of the bush, the lock may still be opened with a key. At the other end of the drive there may be a sprung override plunger 9 displacing the spool when pressed against the springs 4.
Improved locks and locking mechanisms
MARCUS O'SULLIVAN (author) / MARK O'SULLIVAN (author)
2017-09-13
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser
THERMAL INSULATION LOCKING TECHNOLOGY WITH SELF-ADHESIVE CONNECTING LOCKS
| European Patent Office | 2019