Abstract:
An elevator governor inertia carrier (146) comprising: a cartridge assembly (148) having a shaft opening (160) for receiving a shaft (134) through the shaft opening (160), the cartridge assembly configured for fixed attachment to the shaft (134); and at least one force-exerting element (152) associated with the cartridge assembly (148) and offset from the shaft (160) opening, the at least one force-exerting element (152) comprising: a hollow body (178) having an internal cavity (180) extending between a first open end (182) and a second end (202); an elastically-resilient element (214) retained within the internal cavity (180); and a contact member (192) at least partially disposed within the internal cavity (178) and in contact with or formed at an end of the elastically-resilient element (214), wherein the contact member (192) is retractable into the internal cavity (178) to compress the elastically-resilient element (214) when a force greater than a restoring force of the elastically-resilient element (214) is applied to the contact member (192).
Abstract:
A safety device configured to aid in braking movement of a hoisted object is provided including a mounting frame. A brake block is connected to the mounting frame and is operably coupled to a safety brake. An inner block assembly is disposed between the mounting frame and the brake block. The inner block assembly is movable relative to both the mounting frame and the brake block. Upon detection of a predetermined condition, the brake block is configured to engage and adjacent guide member to actuate the safety brake.
Abstract:
A pulley (1) for guiding a suspension traction means (2) of a lift, with a central portion (3) characterized in that the central portion (3) has at least one marking (5,5') for detecting if the suspension traction means (2) is positioned correctly on the pulley (1), a lift system (6) with such a pulley and a method for monitoring such a lift system (6).
Abstract:
An elevator system for mechanical activation of separate elevator safety gears with a single over speed governor in the upwards and downwards direction is provided. One or more elevator safety gear activated mechanically by the OSG every time there is an over speed or uncontrolled movement of the elevator car in the downward direction. One or more elevator safety gear activated mechanically by the OSG every time there is an over speed or uncontrolled movement of the elevator car in the upward direction. One or more safety gear lever arm mechanically operated when the elevator car is in over speed in the upward direction. One or more safety gear lever arm mechanically operated when the elevator car is in over speed in the downward direction. The governor rope is linked to the safety gears by the safety gear lever arms, wherein, when the elevator car is in over speed in the downward direction the safety gear lever arm mechanically operates the respective safety gear in the downward direction thereby, causing the elevator car to stop or to slowdown, and, wherein, when the elevator car is in over speed in the upward direction the safety gear lever arm mechanically operates the respective safety gear in the upward direction thereby, causing the elevator car to stop or to slowdown.
Abstract:
The invention relates to a method for performing an emergency stop with an elevator, and also to a safety arrangement of an elevator. In the method when an emergency stop criterion is fulfilled, the elevator car (1) is driven with the electric motor of the hoisting machine (2) to a stop with a given deceleration profile (3a, 3b).
Abstract:
Die Erfindung betrifft ein Verfahren zur Überwachung von Fahrbewegungen einer Aufzugskabine, eine elektronische Steuereinrichtung zur Überwachung von Fahrbewegungen einer Aufzugskabine sowie eine Aufzugskabine mit einer entsprechenden Steuereinrichtung. Fahrbewegungen (s, v, a) einer Aufzugskabine, sind im wesentlichen Wege (s), Geschwindigkeiten (v) oder Beschleunigungen (a) der Aufzugskabine. Zumindest einzelne Fahrbewegungen werden zum Zwecke der Überwachung redundant erfasst. Hierbei werden entweder die Wege (s) oder die Geschwindigkeiten (v) redundant und die Beschleunigungen (a) einfach erfasst, oder alternativ werden die Beschleunigungen (a) redundant und die die Wege (s) oder die Geschwindigkeiten (v) einfach erfasst, oder vorzugsweise können die Wege (s) oder die Geschwindigkeiten (v) und die Beschleunigungen (a) redundant erfasst werden. Die elektronische Steuereinrichtung ist vorzugsweise im Bereich von Tragrollen der Aufzugskabine angeordnet.
Abstract:
An elevator system includes one or more rails fixed in a hoistway and an elevator car configured to move through the hoistway along the one or more rails. The system includes one or more braking systems having one more braking surfaces secured to the elevator car and frictionally engageable with one or more rails of the elevator system. One or more actuators are operably connected to the one or more braking surfaces configured to urge engagement and/or disengagement of the one or more braking surfaces with the rail to stop and/or hold the elevator car during operation of the elevator system.