JPS6123876Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clock radio device installed in an automobile instrument panel.
The purpose of this is to configure the frequency display so that it can be easily seen not only by the driver but also by passengers, regardless of the mounting position of the radio receiver body, and also to allow the display to double as a digital clock display. This is how it was done.

Traditionally, when it comes to equipment such as instruments, radio receivers, and clocks installed on automobile instrument panels, priority has been given to the functions of the automobile.
Speedometers, fuel gauges, engine tachometers, clocks, etc. are prioritized in positions that are easy for the driver to see, and due to space issues, radio receivers, car air conditioners, etc. are generally placed at lower positions where they are difficult to see. It was hot. On the other hand, when looking at radio receivers, one reason for this is that more emphasis has been placed on operating functions, such as pressing a preset button, than on viewing functions.
When considering how to arrange the above-mentioned devices in the narrow space of the instrument panel, it must be said that it is difficult to arrange the radio receiver in an upper position where it can be easily seen. Therefore, when the preset position shifts or changes, especially when you want to receive a broadcast program from a specific broadcast station, it is necessary to perform the tuning operation while visually checking the frequency of that broadcast station. In order to do so, it is difficult to see without bending down, and it is dangerous for the driver to do so while driving, and even when the vehicle is stopped, it is extremely troublesome to operate.

Therefore, in order to solve these problems, the present invention separates the frequency display of the radio receiver from the radio receiver body and combines it with the display of the digital clock placed at the top of the instrument panel. The main body of the machine is arranged at a lower part where it can be easily operated, and will be described in detail below based on the drawings showing an embodiment thereof.

In the drawing, reference numeral 1 denotes an instrument panel provided in front of a driver's seat 3 of an automobile 2. A radio receiver body 4 is disposed at the bottom of the panel 1, and a digital clock is displayed at the top. Section 5 is positioned. This clock display section 5 is connected to the radio receiver main body 4 by a predetermined wiring 6 provided in the panel 1 so as to also serve as a reception frequency display. here,
Consider the visibility of driver A and passenger B in the rear seat. As shown in FIG. 1, if the driving visibility angle of driver A is θ, the angle from the lower limit of visibility to the display section 5 is α ₁ , and the angle to the radio receiver body 4 is α ₂ , α ₁ is smaller than _α2 , and the driver A can view the display section 5 without averting his/her line of sight from the driving viewing angle θ. Further, the passenger B can visually recognize the display section 5 within the viewing angle β between the top 7 of the driver's seat 3 and the ceiling 8. In addition, in Figures 1 and 2,
9 is a handle, 10 is a meter section such as a speedometer, 11
1 is a car air conditioner, and 12 is an air outlet for the air conditioner.

FIG. 3 is an electrical wiring diagram for displaying the time and receiving frequency by the display section 5. In FIG. 3, 13 is a digital display for displaying the time and AM/FM receiving frequency; 15 is a clock section, 16 is a radio receiving circuit section, _SW1 is a power switch for the radio receiving circuit 16, 17 is a frequency counter section, and 18 is a display circuit section of the display 13. The clock section 15 has a reference frequency oscillation source 19, a frequency divider 20, and a counter 21, and the counter 21 outputs a time signal to the display circuit 18. The radio reception circuit section 16 includes AM and FM front ends 22 and 23, a circuit 24 from intermediate frequency amplification to low frequency amplification, a speaker 25, and a band switching switch SW ₂ , and is a superheterodyne receiver. It consists of Further, the frequency counter section 17 is connected to the AM/FM front end 22,
23 local oscillation voltage switching switch SW ₂ contact
A circuit 26 that takes out the pulse through SW _2-2 and pulses it;
a counting gate 27; a control circuit 28 operated by the reference frequency oscillation source 19;
7 and a counter 29 that counts the frequency. The outputs of the counter 21 and the frequency counter 29 of the clock section 15 are input to the display circuit 18, and a display drive circuit 32 is operated via switching circuits 30 and 31, where the switching The circuits 30 and 31 operate by a flip-flop circuit 33 and a control circuit 34 so that under normal conditions, the circuit 30 is ON to conduct the output, and the circuit 31 is OFF to disconnect the output. That is, when the radio receiving circuit section 16 is not operated, the control circuit 34 outputs a reset signal and turns on the switching circuit 30 via the circuit 33, and the display 13 displays the time, but the tuning When you touch the knob 35 or the preset pushbutton 36 or other operating part of the radio receiving circuit section 16, the control circuit 34 operates and outputs a set signal, turns off the switching circuit 30, turns on the switching circuit 31, and turns on the display. 13, the reception frequency is displayed.
At this time, the switching circuit 31 further
The display 13 is driven to display according to the switching state between AM and FM by the band switching switch SW _2-3 . Here, the display state of the display 13 is switched as appropriate depending on the time display and the display of the AM and FM frequency states.

In FIG. 4, a timer 37 is provided for causing the control circuit 34 to operate for a certain period of time.
The switch 38 for starting the timer 37 may be linked to the knob 35 or the push button 36, or may be an independently provided switch.

Further, FIG. 5 shows that the operation of the control circuit 34 is controlled by a switch SW _1-2 which is linked with the power switch SW ₁ of the radio receiving circuit 16, and a frequency is displayed on the display 13 during the operation of the radio receiving circuit 16. The control circuit 34 is configured to output a set signal when the switches _SW1-2 are ON. The pushbutton switch 39 is a pushbutton switch that allows the control circuit 34 to temporarily output a reset signal to display and confirm the time when receiving radio signals. In addition, in order to display the time for a certain period of time when the switch 39 is operated,
A timer may be provided.

In FIG. 6, a switch SW ₃ interlocked with the engine key is provided between the power supply circuit 14 and the display circuit 18 to turn off the display on the display 13 when getting out of the car. counter 1
5 is now working all the time.

The display unit 5 separated from the radio receiver body 4 described above requires at least a digital display 13,
The display circuit 18, the clock counter section 15, and the frequency counter section 17 may also be provided together. on the other hand,
The radio receiver main body 4 has at least an operating section, and a main wiring board and the like are housed therein.

The present invention has the configuration described above, and the display of the received frequency is easy to see regardless of the position of the radio receiver body, and in particular, for the driver, it is possible to display the reception frequency slightly below the driver's field of vision. The received frequency can be visually checked just by looking away, and it is also easy for passengers in the rear seats to see, and it also serves as both a time display and a received frequency display, making it very advantageous in terms of space and economy. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a schematic layout diagram of the state installed on a car, Figure 2 is a front view showing a part of the instrument panel,
FIG. 3 is a block diagram of the same embodiment, and FIGS. 4 to 6 are block diagrams of main parts showing other embodiments. DESCRIPTION OF SYMBOLS 1...Instrument panel, 4...Radio receiver body, 5...Display section, 13...Digital display, 14...Power circuit, 15...Clock section, 16...Radio receiving circuit section, 17 ...Frequency counter section, 18...Display circuit section, 35, 36...
...Operation parts such as knob push buttons.

Claims (1)

[Scope of utility model registration request] A radio receiver body equipped with a digital display that can switch and display the time and reception frequency, a clock section having a reference frequency oscillation source, a frequency divider, and a counter, a radio reception circuit and its operation section, and a reception frequency counter. and a display drive circuit for switching and displaying the time and reception frequency on the digital display, the display being located at the top of the automobile instrument panel where it can be easily seen by the driver and passengers, The main body of the radio receiver having the operating section is placed at the bottom of the instrument panel, the display is normally used as a time display, and the radio receiver circuit is connected to the power source.
A clock radio device for an automobile, characterized in that the frequency display is switched only when an operation part such as a tuning knob is operated or touched when turned on.