Elevator installation with a device for furnishing a temporary protective space, a method for mounting the device and a method for furnishing the temporary protective space
First Claim
Patent Images
1. A device for an elevator installation having a car movable in a shaft, and a car safety brake device acting on the car and being actuable by a speed limiter cable, the device comprising:
- at least one abutment fastened to one of the speed limiter cable and an actuating unit for the safety brake device; and
at least one stop device switchable between an open position and a stopping position and fastened in the shaft for blocking movement of the speed limiter cable when in said stopping position and in cooperation with said at least one abutment to actuate the safety brake device and prevent movement of the car whereby said at least one stop device is not switched to said stopping position in response to an overspeed condition of the car.
1 Assignment
0 Petitions
Accused Products
Abstract
A device provides an elevator installation with a shortened car travel path to establish a temporary protective space below and/or above the car upon activation of the car safety brake device. The speed limiter cable is limited, independently of the speed limiter, in a travel path by a switchable stop device. This limitation causes an actuation of the car safety brake device in the corresponding travel direction.
28 Citations
16 Claims
-
1. A device for an elevator installation having a car movable in a shaft, and a car safety brake device acting on the car and being actuable by a speed limiter cable, the device comprising:
-
at least one abutment fastened to one of the speed limiter cable and an actuating unit for the safety brake device; and at least one stop device switchable between an open position and a stopping position and fastened in the shaft for blocking movement of the speed limiter cable when in said stopping position and in cooperation with said at least one abutment to actuate the safety brake device and prevent movement of the car whereby said at least one stop device is not switched to said stopping position in response to an overspeed condition of the car. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method of mounting a device for providing a temporary protection space in an existing or new elevator installation shaft in which a car is braked by a car safety brake device actuable by blocking a speed limiter cable, comprising the steps of:
-
a) fastening at least one abutment to the speed limiter cable; and b) mounting at least one switchable stop device in the shaft relative to the speed limiter cable whereby when the at least one stop device is switched to a stopping position, the at least one stop device engages the at least one abutment and blocks the speed limiter cable, said at least one stop device not being switched to said stopping position in response to an overspeed condition of the car.
-
-
16. A method of furnishing a temporary protection space above and/or below a car in an elevator shaft in which the car is braked by a car safety brake device actuable by blocking a speed limiter cable, comprising the steps of:
-
a) fastening at least one abutment to the speed limiter cable; b) mounting at least one switchable stop device in the shaft; and c) switching the at least one switchable stop device to a stopping position whereby the at least one switchable stop device engages the at least one abutment to limit travel of the speed limiter cable and prevent the car from entering a protection space in the shaft, said at least one stop device not being switched to said stopping position in response to an overspeed condition of the car.
-
Specification