公开(公告)号：US4932502A

公开(公告)日：1990-06-12

申请号：US310553

申请日：1989-02-15

申请人： Jeffrey W. Blain ,  David S. Kutz

发明人： Jeffrey W. Blain ,  David S. Kutz

IPC分类号： B66B1/04 ,  B66B1/00 ,  B66B1/24 ,  B66B9/04

CPC分类号： B66B1/24 ,  B66B1/285

摘要： A hydraulic elevator system 10 having an elevator car 12 in which car velocity V and car position L are determined by detecting the quantity Q of hydraulic fluid transferred between a hydraulic cylinder and a hydraulic fluid reservoir. The car velocity V is directly proportional to Q and the car position L is directly proportional to the integral of Q. The car velocity V, or quantity Q, is compared with a desired velocity pattern, or desired flow rate pattern, PG, and the difference is a control signal C which is used to control the quantity Q. The car position L may also be used to determine the distance-to-go to a target floor, which may be used to initiate slowdown and/or to calculate all, or selected portions of, the desired pattern PG.

公开(公告)号：US06382362B1

公开(公告)日：2002-05-07

申请号：US09782547

申请日：2001-02-13

申请人： David S. Kutz

发明人： David S. Kutz

IPC分类号： B66B1306

CPC分类号： B66B13/22

摘要： A system for monitoring an elevator door in a hoistway. The elevator door is movable between a closed position and an open position. The system includes a transmitter for emitting an optical signal and an interlock device for latching the elevator door. The interlock device includes an optical nosepiece so positioned for receiving, guiding, and outputting the optical signal from the transmitter when the elevator door is closed and the interlock device is in the latched state. A receiver receives the optical signal via the nosepiece only when the elevator door is closed and the interlock is latched to thereby indicate the elevator door is in its latched state.

摘要翻译： 一种用于监测井道中的电梯门的系统。 电梯门可在关闭位置和打开位置之间移动。 该系统包括用于发射光信号的发射器和用于闩锁电梯门的互锁装置。 互锁装置包括：当电梯门关闭并且互锁装置处于锁定状态时，被定位成用于接收，引导和输出来自发射器的光信号的光学鼻梁。 只有当电梯门关闭并且联锁被锁定从而指示电梯门处于其锁定状态时，接收器经由鼻梁接收光信号。