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Lift with a safety brake

A technology for safety brakes, elevators, used in elevators, lifts, transportation and packaging in buildings

Active Publication Date: 2015-07-15
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution involves a solenoid that is always energized in the deactivated state, which must hold the safety brake in the deactivated position against the preloaded spring

Method used

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  • Lift with a safety brake
  • Lift with a safety brake
  • Lift with a safety brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 An embodiment of an elevator 10 with a car 11 is shown. The car 11 is movable in the shaft 14 along a running track defined by the guide rails 12 . For this purpose, the elevator 10 has a hydraulic drive. In the section shown, only the hydraulic piston 13 can be seen therefrom. Not visible is the hydraulic cylinder in which the hydraulic piston 13 is guided and which moves the hydraulic piston 13 vertically upwards or downwards. The car 11 is equipped with two safety brakes 1 in the lower area. The safety brake 1 acts on the guide surface of the guide rail 12 during braking. Instead of a hydraulic drive, the elevator 10 can of course be equipped with a traction drive having a traction mechanism and a motor, wherein the car 11 and the counterweight are suspended from the traction mechanism and the motor is in operative contact with the traction mechanism by means of the drive wheels. Ropes, belts, etc. can be used as traction means.

[0026] exist figure...

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PUM

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Abstract

The invention relates to a lift (10) with a cab (11) guided on guide rails (12) and with a safety brake (1) which is arranged on the cab (11) and is designed to exert a braking force onto the guide rails (12) if a safety criterion is not met. The safety brake (1) comprises: a brake housing (2) having: a wedge-shaped opening in which at least a part of a guide rail (12) can be introduced; a brake body (3) that can be introduced in the wedge-shaped opening between a surface of the brake housing (2) delimiting the wedge-shaped opening and a guide surface of the guide rail (12); an activation mechanism (4) by means of which an activation force can be transmitted onto the brake body (3) and via which the brake body (3) can be pressed onto the delimiting surface and the guide surface; and a release mechanism (5) that is indirectly or directly connected to the brake body (3) and holds the brake body (3) in a rest position against the activation force. The invention is characterized in that the release mechanism (5) has at least one articulated arm (6) which can be brought into an extended position and a bent position. In the extended position, the articulated arm (6) holds the brake body (3) in the rest position, and in the bent position it releases the activation force for transmission to the brake body (3).

Description

technical field [0001] The invention relates to an elevator with a safety brake, in particular a safety brake that can be triggered electrically, and the safety brake can prevent the possible fall of the car in the dangerous running state of the elevator. Background technique [0002] Typically, the car is moved in the elevator on different opening levels of the building guided on guide rails by means of a drive. A traction drive or a hydraulic drive is used as the drive. The traction drive consists of at least a motor, a drive wheel and a traction mechanism such as a rope or a belt. The motor drives the drive wheel via a shaft. The drive wheel transmits traction to the traction mechanism by means of friction. A car and a counterweight are suspended on the traction mechanism, and the counterweight balances the gravity of the car. The hydraulic drive includes at least one hydraulic cylinder and hydraulic piston. A working fluid is pressurized in the hydraulic cylinder, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/18B66B5/22
CPCB66B5/18B66B5/22B66B9/00
Inventor 施特凡·胡格尔丹尼尔·费歇尔
Owner INVENTIO AG