JPS60219559A - Rotation display apparatus - Google Patents

Abstract

PURPOSE:To attain to enhance operability by making it possible to know the starting and stopping processes of machinery at a glance, by displaying the rotation of a rotary drive apparatus (motor) on a display device consisting of a plurality of display elements in a visually intelligible manner. CONSTITUTION:The titled apparatus is constituted of a rotation detector 3 for detecting the rotation of a motor 1, a three-bit binary counter 6, a memory element (memory) 7 and a display device 9 having a plurality of display elements. A photocoupler 4 is turned On and OFF by the rotation of the slit disc 2 attached to the rotary shaft of the motor 1 to detect rotation and generates a signal with frequency proportional to the number of rotations of the motor 1. This signal is divided into frequencies fitted to display by a frequency divider 5 and the count 6 counts up to indicate the data address of the memory 7. Hereupon, the data of the memory 7, in which the indicated data address is preliminarily is written, is outputted to the driver 8 of the display device 9 and the clear terminal of the counter 6. Seven segments of light emitting elements of the display device 9 are selectively lighted by the output of the driver 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rotary display device for visually displaying the rotational state of a rotary body.The present invention relates to a rotary display device for visually displaying the rotational state of a rotating body. In equipment, the start of rotation,
Many take time to fall. In particular, in video disc playback devices, the rotation speed of the turntable is 90
Orpm or 1800 rpm, which takes a long time for the start and fall of rotation.Furthermore, due to the structure, the rotation status of the turntable is difficult to see from the outside or cannot be seen at all, so the operator has no control over the start and end of playback. It is difficult to determine whether the instruction has been accepted or whether the turntable has stopped rotating and the disc can be removed.

Purpose of the Invention In order to solve these conventional problems, the present invention focuses on the fact that the number of rotations of a rotary drive device indicates the start and stop of a device, and the present invention provides a system that displays the rotation of a rotary drive device using a plurality of display elements. The purpose is to improve the operability of the equipment by using a display and displaying the information in a visually easy-to-understand manner.

Structure of the Invention The rotary display device of the present invention includes a rotation detector that detects a detection signal of a frequency corresponding to the number of rotations of a rotation drive device, a counter that counts the detection signal from the rotation detector, and display data stored. The display device includes a memory element whose address is designated by the counter, and a display device having a plurality of display elements for displaying display data from the memory element.

Description of examples An outline of the present invention is shown in FIG.

The rotation detector 3 extracts a detection signal with a frequency corresponding to the number of rotations of the rotary drive device 1, and the address of the storage element 7 is specified based on the count data from the counter 6 that counts the detection signal. It is configured so that data set in advance in a memory element 7 is displayed on a display 9 having a plurality of display elements.

FIG. 2 shows a more specific example,
A motor is used in the rotary drive device 1, and the rotation state of the motor 10 is displayed by sequentially causing light emitting elements constituting each segment of a seven-segment numeric display of a display 9 to emit light.

As the disc 2 with several slits installed on the rotating shaft of the motor 1 rotates, the photocoupler 4 is turned on and off, detecting the rotation, and outputting a signal with a frequency proportional to the number of rotations of the rotating motor 1. is generated, the frequency is divided by the frequency divider 5 to a frequency suitable for display, and the counter 6 counts up based on the signal.

The counter 6 is a 3-bit binary counter and specifies the data address of the storage element (memory) 7.

The storage element (memory) is a read-only memory, and outputs the data written in advance at the data address specified by the output of the counter 6 to the driver 8 of the display 9 and the clear terminal of the counter θ. The output of the driver 8 selectively lights up the seven segments of light emitting elements of the display 9.

FIG. 3 shows 8 written in the memory element 7 in this embodiment.
The data of the bits and the relationship between each bit and the light emitting elements 11 to 17 of each segment of the display 9 and the counter 6 are shown. When the bit value is 1, the corresponding light emitting element 11
17 lights up. Each time the 0 counter 6 counts up and the data address increases, the display 90 light emitting elements 11 to 1 light up.
6 are lit in sequence, and when the data address reaches (110), the counter 6 is cleared, the data address becomes (000), and the light emitting element 11 lights up. No 170 light emitting element is used here. In this way, the light emitting elements 11 to 16 are sequentially turned on while changing the lighting cycle according to the rotational speed of the rotary motor 1, thereby producing a display in which the light rotates.

Effects of the Invention According to the present invention, it is possible to express the display in a visually easy-to-understand manner by rotating the display at a cycle according to the number of rotations of the rotary drive unit of the device, and the process of starting and stopping the device, which was difficult to understand in the past, can be visualized. This can be seen at a glance and improves operability.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an overview of the rotary display device of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a block diagram showing the contents of the memory element and the memory element and counter memory element of the same embodiment. FIG. 2 is a configuration diagram showing the relationship between the display and the display. 1... Rotation drive device, 2... Slit person 9 disk, 3... Rotation detector, 4... Photo coupler, 6... Frequency divider, 6 ...Counter, 7
... Memory element, 8 ... Driver, 9 ...
...Display, 10...Turntable-11
~17...°・Light emitting element.

Claims (2)

[Claims] (1) A rotation detector that detects a detection signal of a frequency corresponding to the rotation speed of the rotation drive device, a counter that counts the detection signal from the rotation detector, and display data are stored. A rotary display device comprising a designated storage element and a display having a plurality of display elements that display display data from the storage element. (2) Using a 7-segment numeric display as a display,
The display data is stored in a memory element so that the light emitting elements constituting each segment sequentially emit light, and the light emitting elements of the numeric display sequentially emit light at a speed corresponding to the rotational speed of the rotary drive device. The rotary display device according to claim 1, characterized in that: