Elevator load detection method and load detection device

• Main Authors: YOHEI SUGIYAMA, KEIJI MATSUMOTO, HIRONORI FUKATA, AKINORI YAMAGISHI, NAOKI TAKAYAMA, TAKAMICHI HOSHINO, TAKASHI SEKINO, HIRONORI KANETA, JUN TORIYABE
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2014
• Subjects: ELEVATORS; ESCALATORS OR MOVING WALKWAYS; HAULING; HOISTING; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

The invention provides an elevator system, by which elevator compartment load can be detected without use of a weighing device in an elevator containing a rotation amount detector mounted on a speed adjuster and capable of detecting rotation amount of the speed adjuster and a calculation processor calculating elevator speed and elevator compartment displacement based on output of the rotation amount detector. In elevators containing an elevator compartment, a main sling hanging the elevator compartment, a winch winded with the main sling and driving the elevator, a speed adjuster rope connected with the elevator compartment, a speed adjuster pulley supporting the speed adjuster rope and rotating and a rotation amount detector connected with the speed adjuster pulley and capable of detecting rotation amount of the speed adjuster pulley, deflection of the elevator compartment due to extension of the main sling of the elevator compartment due to load of the elevator compartment can be detected and calculated bas