Safety device for person and goods lift and turnstick for shifting or release of the liftcage
OwnerStein Akerinventor
Life of this patent
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Abstract
The invention relates to a safety device for elevators, where an elevator turning wheel is connected to an elevator drive system comprised of an electric motor. The turning wheel is also coupled to a turn handle to move the elevator in the event of a power outage. The handle is also disposed in a holder containing a switch for connecting or disconnecting the supply of electric current to the elevator drive system.
Claims9
Safety device for a passenger/freight elevator of the shaft elevator type, wherein an elevator turning wheel connected to an elevator drive system comprising an electric motor is provided with a peripheral bead or peripheral axially extending flange for engagement with a turn handle for rotation of the turning wheel to move an elevator car in the event of a power outage, or if the car is wedged or jammed in an elevator shaft, or when the elevator is being serviced, characterized in that the turn handle (1) is releasably disposed in a permanently mounted holder (2) containing a switch (3) for connection/disconnection of the supply of electric current to the elevator drive system, which connecting position for the switch (3) is actuated by the turn handle (1), the circuit being closed when the turn handle (1) is placed in the holder (2) and interrupted when the turn handle (1) is removed from the holder (2).
Dependencies are inferred from the claim text.