A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An inner security door 20 intended for use in a cupboard and may be retrofitted to enable child safety. The security door has a frame 21 and may have a rearwardly extending flange 24. Upper and lower axially aligned hinge pins 30 and 31 have respective outer ends adapted to rotatably engage the top and bottom of the cupboard, e.g. by means of piercing points. An advancing mechanism 32, which may be an externally screw threaded projection and an internally screw threaded socket, to axially move (extend, retract) the upper and lower hinge pins relative to each other to engage the top and bottom of the cupboard. The lower hinge may have a square collar (33, fig.5) rotatably fixed in a lower lug 26.
An inner security door 20 intended for use in a cupboard and may be retrofitted to enable child safety. The security door has a frame 21 and may have a rearwardly extending flange 24. Upper and lower axially aligned hinge pins 30 and 31 have respective outer ends adapted to rotatably engage the top and bottom of the cupboard, e.g. by means of piercing points. An advancing mechanism 32, which may be an externally screw threaded projection and an internally screw threaded socket, to axially move (extend, retract) the upper and lower hinge pins relative to each other to engage the top and bottom of the cupboard. The lower hinge may have a square collar (33, fig.5) rotatably fixed in a lower lug 26.
Security door for a cupboard
GARY HAWES (author)
2023-07-05
Patent
Electronic Resource
English