摘要:
An elevator safety brake is provided comprising two cantilevers, a pivot, a spring, and a hold-off-engagement linkage. In one embodiment, the hold-off-engagement linkage is comprised of two upper struts, and two lower struts. When it is desired to slow or stop the elevator via the safety brake, the lower struts move from a first position in which the lower struts are substantially in alignment with one another and the cantilevers are in an open position, to a second position in which the lower struts are not substantially in alignment with one another and the cantilevers are in a closed position. When the cantilevers are in the closed position, the spring exerts a force via the cantilevers on the guide rail in order to decelerate the elevator.
摘要:
An elevator safety brake for stopping an elevator car is provided with a brake shoe having a molybdenum alloy friction surface for contacting an elevator guide rail surface to provide a stopping force. The molybdenum alloy contains 99.4 weight percent molybdenum, 0.5 weight percent titanium and 0.1 weight percent zirconium. The friction surface of the brake formed from the alloy exhibits a consistent high friction and low wear suitably accommodating high speed, high load elevators installed in very tall buildings.
摘要:
An elevator safety brake for stopping an elevator car is provided with a brake shoe having a carbon-carbon composite friction surface for contacting an elevator guide rail surface to provide a stopping force. The friction surface of the brake formed from the carbon-carbon composite exhibits a consistent high friction and low wear suitably accommodating high speed, high load elevators installed in very tall buildings.
摘要:
An elevator safety brake for stopping an elevator car is provided with a brake shoe having a fused sprayed friction coating for contacting an elevator guide rail surface to provide a stopping force. In a preferred embodiment, the coating is obtained by plasma spraying an admixture of 85 weight percent nickel-chromium alloy particles and 15 weight percent tungsten carbide particles on a substrate. The plasma sprayed admixture is fused. The fused sprayed friction surface of the brake exhibits a consistent high friction and low wear suitably accommodating high speed, high load elevators installed in very tall buildings.
摘要:
Elevator cabs are transferred between elevators, which may be shuttles, in various levels of a building, such as transport floors, in response to car calls registered in the cabs and hall calls registered on the transport floors. The cabs may be transferred from carriages or bogeys onto elevator car frames in a lateral direction, which is perpendicular to the motion of the cab on a carriage or bogey, or in a longitudinal direction which is the same as the direction of motion of a cab on a carriage or bogey. The horizontal/vertical control and transfer may be effected in response to the arrival at transport floors of elevators having cabs therein, or in response to the arrival at an elevator of a bogey carrying a cab which must be transported between a transport floor on one level of a building and a transport floor on another level of a building, in order to serve the need of a car call registered therein or a hall call. The horizontal transportation may occur on transport floors within a building, or may extend between different building segments or between different buildings.
摘要:
A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (FIGS. 10-13) keeps track of the progress of the cabs from one elevator to another.
摘要:
An elevator cab X is moved from a hoistway TL to a car frame (11) simultaneously with moving a cab Y from the car frame (11) onto a landing TR. Double deck car frames (11a) may be utilized with cars P, Q going in the opposite direction of cars X, Y as they are transferred between the car frame and corresponding landings.
摘要:
Horizontally moveable elevator cabs A-E are transferrable between the car frames (72) of two elevators HI, LO in adjacent hoistways which extend between at least three levels (GND, MID, SKY) of a building, and between the car frames and landings L, R at said levels. The vertical movement of cars in the hoistways is synchronized, and transfer of elevator cabs between landings and car frames is simultaneous.
摘要:
A socket plug assembly (44) on an elevator cab (10) may engage with complimentary socket plug assemblies (46) on either of two car frames (11, 13) when it is horizontally moved therebetween. A socket plug assembly (44a) on a horizontally moveable elevator cab may have a horizontal interface with a complimentary socket plug assembly (45b) mounted on an elevator car frame or landing, and one of them is moved vertically to cause engagement with the other. Socket plug assemblies (169) tethered to a cab (10) by means of an umbilical cord (168) is engageable with socket plug assemblies (170, 171) on booms (172, 173) on the elevator car frames (21, 22) or landings. An uninterruptible power supply (50) maintains power when the cab is unplugged; a transceiver (51) on the cab maintains communications with a transceiver (62) in the building when the cab is unplugged.
摘要:
An elevator system provides service between a ground level and each of three upper levels through a single elevator shuttle hoistway system. Three elevator cabs 34-36, B, D, F are moved in a triple deck elevator car frame 35, or a four deck elevator car frame 75 in a low hoistway 26, 76; two cabs are moved in a double deck elevator car frame 30 or four deck car frame 76 in a mid hoistway 27, 52; and one cab is moved in a single deck car frame 31 or triple deck car frame 77 in a high hoistway 28, 53. Other embodiments have other car frame arrangements.