JPH0210375U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an elevator door control device according to an embodiment of the invention, FIGS. 2 a to c are operational waveform diagrams of each part of the elevator door control device, and FIG.
The figure is a block diagram showing a conventional elevator door control device, Figures 4a to 4c are operation waveform diagrams of each part of the elevator door control device shown in Figure 3, and Figures 5a and b are speed commands in normal times. It is a figure which shows the relationship with the speed of a door. 1 is a door drive motor, 2 is a speed detector, 3 is a speed command circuit, 4 is a differential amplifier circuit, 5 is a current amplifier circuit, 6 is a speed memory circuit, 7 is a speed comparison circuit, 8 is a reversal command detection circuit, 9 is an AND circuit, and 10 is an OR circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Amendment November 14, 1981 The name of the invention is amended as follows. Title of the invention Elevator door control device The scope of the utility model registration claims and the brief description of the drawings are amended as follows.

[Scope of claim for utility model registration] A door drive motor that drives the opening and closing of the door in an elevator, a speed detector that detects the rotational speed of this door drive motor, and a speed that generates a speed command signal according to the opening and closing position of the door. A command circuit compares the output signal of the speed detector with a speed command value generated from the speed command circuit, and generates a signal according to the deviation value to control the rotational speed of the door drive motor. In an elevator door control device having a differential amplifier circuit, a speed storage circuit stores the output of the speed detector in normal times, and compares the output of the speed detector and the output of the speed storage circuit, and a speed comparison circuit that generates an output during a period until the output of the speed detector reaches the output of the speed storage circuit; a reversal command detection circuit that detects the reversal of the door opening/closing command; 1. A door control device for an elevator, comprising: control means for controlling the door drive motor to run when the outputs of the reversal command detection circuit match.

[Brief Description of the Drawings] Fig. 1 is a block diagram showing an elevator door control device according to an embodiment of this invention, and Figs. 2 a to c are operational waveform diagrams of each part of the elevator door control device shown in Fig. 1. , FIG. 3 is a block diagram showing a conventional elevator door control device, FIGS. 4 a to c are operation waveform diagrams of each part of the elevator door control device shown in FIG. 3, and FIG.
Figures a and b are diagrams showing the relationship between the speed command and the door speed under normal conditions. 1 is a door drive motor, 2 is a speed detector, 3 is a speed command circuit, 4 is a differential amplifier circuit, 5 is a current amplifier circuit, 6 is a speed memory circuit, 7 is a speed comparison circuit, 8 is a reversal command detection circuit, 9 is an AND circuit, and 10 is an OR circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A door drive motor that drives the door in the elevator to open and close, a speed detector that detects the rotational speed of the door drive motor, a speed command circuit that generates a speed command signal according to the opening and closing position of the door, and the speed detector. and a differential amplifier circuit that compares the output signal of the output signal with the speed command value generated from the speed command circuit and generates a signal according to the deviation value to control the rotational speed of the door drive motor. In the door control device, a speed storage circuit that stores the output of the speed detector in normal times compares the output of the speed detector with the output of the speed storage circuit, and the output of the speed detector is set to the speed of the speed sensor. a speed comparison circuit that generates an output in a period until reaching the output of the storage circuit; a reversal command detection circuit that detects reversal of the door opening/closing command; and an output of the speed comparison circuit and an output of the reversal command detection circuit that match. 1. A door control device for an elevator, comprising: control means for controlling the power running of the door drive motor when the door drive motor is operated.