A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A bolting mechanism 10 is disclosed which comprises one or more bolt members 20 arranged to be driven together between an extended and retracted configurations. A first drive train 60 of the mechanism couples motion of a first handle 22 to the bolt members. A primary deadbolt mechanism prevents the bolt members from being driven when it is in a locked state. The primary deadbolt 100 mechanism comprises a fail-secure electrical actuator that continues to prevent the bolt members from being driven in case of electrical power loss to the bolting mechanism. A second drive train 62 of the mechanism then couples motion of a second handle 24 to the bolt members to drive them from the extended to the retracted configuration, the second drive train overriding the primary deadbolt mechanism. A secondary deadbolt mechanism 120 then prevents the bolt members from being driven from the extended to the retracted configuration when the secondary deadbolt mechanism is in a locked state. The secondary deadbolt mechanism comprising a fail-safe electrical actuator that ceases to prevent the bolt members from being driven from the extended to the retracted configuration in case of electrical power loss to the bolting mechanism.
A bolting mechanism 10 is disclosed which comprises one or more bolt members 20 arranged to be driven together between an extended and retracted configurations. A first drive train 60 of the mechanism couples motion of a first handle 22 to the bolt members. A primary deadbolt mechanism prevents the bolt members from being driven when it is in a locked state. The primary deadbolt 100 mechanism comprises a fail-secure electrical actuator that continues to prevent the bolt members from being driven in case of electrical power loss to the bolting mechanism. A second drive train 62 of the mechanism then couples motion of a second handle 24 to the bolt members to drive them from the extended to the retracted configuration, the second drive train overriding the primary deadbolt mechanism. A secondary deadbolt mechanism 120 then prevents the bolt members from being driven from the extended to the retracted configuration when the secondary deadbolt mechanism is in a locked state. The secondary deadbolt mechanism comprising a fail-safe electrical actuator that ceases to prevent the bolt members from being driven from the extended to the retracted configuration in case of electrical power loss to the bolting mechanism.
Bolting mechanism
JOHN MCGILL (author)
2024-03-13
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser
The bolting mechanism of rockbolts
| British Library Conference Proceedings | 1995
| Engineering Index Backfile | 1953
Online Contents | 1997