JPS5837876A - Revolution display device for rotor of audio device - Google Patents

Abstract

PURPOSE:To perform a stable display and to eliminate the user's sense of unease, by glowing forcibly a display of a constant speed for a specified period upon speed switching and blinking in case a constant speed is not obtained after lapsing a specified time. CONSTITUTION:A switch 6 or 7 is controlled in accordance with the number of rotation of a turntable 1 to switch the speed of the table 1. Thus a display circuit 8 or 9 corresponding to the switch 6 or 7 is forcibly put on for a specified period of 3 seconds for example via a logical control circuit 5 and regardless of the fluctuation and the constant speed of the table 1. After this period, the circuit 8 or 9 is kept glowing in the contant speed mode via a constant speed control circuit 4, the circuit 5, etc. the circuit 8 or 9 is blinked upon non-constant speed mode. Thus the constant speed display is carried out for the table 1 without affecting any sense of unease to the user by a stabilized display whore no blinking does not continue from the switch changeover extending to constant speed obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for easily displaying the constant speed rotation state of a 1g1 rolling element of an audio device.

Conventional record player K> Turntable @
The constant speed rotation state of the motor is displayed using LED lights such as constant speed rotation, but the operation is such that the light only lights up when the rotation speed is constant, and the rotation speed is 55/s. p,@
When changing the speed from 55 rpm to 45 rpm, or vice versa, the speed change switch is provided so that the speed can be changed from 55 rpm to 45 rpm, or vice versa. There are many things that are suitable for κ constant speed rotation κ, with the number gradually becoming larger or smaller than constant speed rotation κ. In this case, the constant speed lg1 rotation display lights up each time the constant speed rotation speed is reached, so it appears to blink irregularly. For this reason, there is a drawback that the pressure is unsightly or gives the user a feeling of anxiety.

However, the constant speed rotation display of the conventional technology is provided at a separate position from the speed changeover switch Vζ, and it is difficult to see because it does not correspond visually, and the structure is complicated, making it difficult to assemble and high cost. A friend with flaws.

Also, since the stroke of the knob T is large, there is a drawback that it does not give a sense of accuracy.

An object of the present invention is to provide a rotating display device 4 for a rotating body that eliminates the drawbacks of the prior art described above and eliminates the user's sense of anxiety.

For this reason, the present invention receives a signal when a speed changeover switch is pressed and forcibly lights up the light corresponding to the switch, regardless of whether or not the rotating body is rotated at a constant speed. Next, after a certain period of time has elapsed, it is detected whether or not it is actually rotating at a constant speed. If it is rotating at a constant speed, it remains lit, and if it is not rotating at a constant speed, the display is turned on at a certain period of time. The user's Kfjt flashes to indicate that the rotation is not at a constant speed.
Let me know. As a concrete example, these procedures are controlled by a program of a predetermined logic control circuit. By adopting such a method, irregular blinking can be eliminated, and
It can also be used as an aS display that blinks at regular intervals to let you know when the lock is off, and the constant speed rotation display is also equipped with an LED for easy viewing.
etc., the speed switching Raman jlgAL has improved operability as an integrated type that doubles as speed and constant speed rotation display.Furthermore, the Raman speed can be enlarged to increase the operation stroke by pressing the operation switch. A sense of precision can be created by making it shorter.

Next, eleven examples of the present invention will be explained with reference to the drawings.

In FIG. 1, numeral 1 denotes a turntable, which is rotated by a moder 2. In FIG. 3 is a moder drive Isfg circuit, which has a constant speed rotation temporary dI4 function using a crystal or the like. 4 is constant speed jli! The circuit determines whether the turntable 1 is rotating at a constant speed or not, and the logic 4IN11 of the microconbee etc.
It is connected to circuit 5 and outputs the signal when the speed is constant.

6 is a switch for 55VSrp, 7 is a switch for 451"pm, 8 is a display circuit for 55Krpwn, 9 is a 45r
PM display - road, each consisting of LED and lighting circuit, switch 6.7 and 1st road 8,9 are AM control circuit 5Km
It is continued.

In Fig. 3, 10 is the upper lid, and 11 is the enlarged ss'Ar.
Pm speed knob, 12td45rp speed knob, both of the knobs 1 and 12 are made of transparent or semi-transparent material, and one end 15, 13 is used as a fulcrum, and the switch 6.7 is a printed base facing the other end. [Located on 14. LEDs facing the center of the mantles 6 and 7
B' and 9' are also arranged on the same printed circuit board 14. This printed base &14 is attached to the top cover 10.

Here, if you want to set the shoulder to 55'Arp, press the speed knob 11 and the protruding fulcrum 15 will be set to 44i14.
Since it contacts the top surface of the 55'ArP and serves as a fulcrum, the switch 6 is pressed. When you want to set the speed to 45 rpm, the 45 rpm switch 7 is pressed by the K 45 rpm door speed knob 12.

Next, the operation will be explained. 55 for speed switching
When you press %rpm speed wjll, 351A switch 6 is pressed and a signal is added to *Danshin Ugo-byou 5, according to the program in 7a-chart of JI2 diagram.
Mode 2 is switched to mode 2 by mode 5. At the same time, the 55'ArPwh display circuit 8 is forcibly turned on for a certain period of time (for example, 3 seconds corresponding to the mode mode starting time Kpm), and then it is constantly checked to see if there is an output from the constant speed determination circuit 4. If the speed is not constant, the mine operation program at fixed time intervals will keep the light on.
A. Make the display circuit 8 blink.

The above explained the switch to 5S'Arp shoulder, but 45
rpwsK also rHJll K, 45rpy
When m speed knob f12 is pressed, the same procedure is performed.

As described above, the present invention makes the constant speed display forcibly illuminated for a certain period of time when the speed is changed, and then causes the constant speed display to flash at regular intervals when the speed is not constant. It eliminates the feeling of anxiety as soon as the speed is changed, and the light on the side of the knob lights up immediately when the speed is changed, making it easy to understand and effective. Furthermore, by placing the 1IIIK display section under the Raman, the switch lights up, so the switch position is set to 'Jk111' to reduce the placement delay and improve the operating feel.

[Brief explanation of the drawing]

Figure JIK1 is a block configuration diagram of an embodiment of the present invention. FIG. 2 is a flowchart, diagram @5 is a plan view of the structure according to l1l-, and diagram @4 is a sectional view taken along l-1 line of diagram jI5. 1: Turntable 2: Motor 5: Motor drive circuit 4: Constant speed judgment circuit 5: Logic control circuit 6: ss'Arp switch 7: 45rp
m switch 8: 55'Arp abuse display circuit 9:
45rpym display circuit 8', 9': LEDlo: Top lid 11: 5B'Arpm fi hee)' knob 11
2: 45rP book speedtsu v (15: Convex fulcrum °14 Niblint board Ogodanshi Usuda Toshinaka-2- Thing 1m

Claims (1)

[Claims] t. In a display device for a rotating body of an audio device equipped with a quartz lock, the display section is forcibly lit for a fixed period of time after the rotation is changed, regardless of whether the speed is constant or not, and after the fixed period of time has elapsed. It compares the presence or absence of a lock, and if it is locked, it continues to light up, and if it is not locked, the display part flashes at a certain time interval.The feature is that it displays the rotation of the rotating body of the audio equipmentf! Place. z #i The display S consists of a display element arranged 111K below the push part made of transparent or semi-transparent material. 4. A switch is arranged at the other end of a knob having a fulcrum at one end, and when the switch is pressed, the display element lights up.
1: Characteristic 脣T! A rotating display device for a rotating body of an audio device according to Item 1 of Section 1iI of F.