JPH0247509Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a display panel of a receiving measuring device such as a direction finder.

[Conventional technology]

In ships, equipment such as direction finders that perform steering based on measurement results rather than simply obtaining data (hereinafter simply referred to as receivers) are placed on the bridge to facilitate steering; The surrounding environment is darkened, and the lighting is only illuminated in areas necessary for continuing measurements, etc., to ensure accurate measurements.

Usually, a receiver is provided with a measurement display function and an operation display function on one panel surface. Here, the measurement display function is a functional part (hereinafter referred to as a measurement display section) that displays reception conditions such as reception frequency, direction, and waveform. The operation display function is a key or key connected to the in-machine circuit that sets measurement conditions or measurement operations such as reception mode selection, sensitivity adjustment, and reception tuning.
A functional part where knobs are provided on the panel surface and the operation name and scale are written in letters, marks, etc. (hereinafter referred to as the operation display section)
It is. Hereinafter, the term "display panel" refers to one that includes both of these displays.

Now, with direction finders, etc., the measurement display section shows the direction and direction.
The waveform is displayed on a CRT, and the frequency is displayed on an LED, etc. These displays are always self-luminous and are not externally illuminated. Also, under external lighting, it is difficult to carry out accurate succession due to reflected light. On the other hand, the operation display section does not need to be illuminated all the time, and only needs to be illuminated when setting measurement conditions. In this case, it is desirable to use the minimum amount of illumination light so as not to affect the continuity of the measurement display section.

[Problem that the invention attempts to solve]

In the conventional technology, regarding the illumination of the panel surface,
Not enough consideration was given. The simplest method was to install a lamp on the panel surface and turn it on, but this had the disadvantage that the lamp light directly entered the eye, making it difficult to see the panel surface. Alternatively, an acrylic light-transmitting plate was placed over the entire surface of the panel, and light was passed through the light-transmitting plate so that the display was transparently displayed on a display board attached to its upper surface. This method requires a considerable amount of light, and the lamp is attached to the back, so
It was inconvenient to have to replace the lamp during maintenance. Both also required a lamp switch, and a special space for this switch had to be provided on the panel surface.

[Means for solving problems]

The present invention provides a display panel in which the illuminating lamp light does not directly enter the eye and is easy to see, especially in the operation display section, and the effective layout area of the panel is not narrowed due to lamp switching. This method is designed to solve the above problems.

That is, the display panel of the present invention is arranged in a position where the operation display function part is illuminated as a section, and this operation display function part has (a) a tuning knob that can be rotated and pushed/pulled; b) an illumination lamp that covers the cavity on the back side of the tuning knob and is attached to the panel; (c) a tuning means that changes the receiving frequency by rotating the tuning knob; (d) the above-mentioned. The illumination lamp is provided with illumination means for illuminating the one section by an operation of pulling a tuning knob toward the user.

[Effect]

Similar to the conventional tuning mechanism, by rotating a tuning knob arranged on the operation display section, the receiving frequency is changed by a tuning means connected to this knob. When you pull this tuning knob toward you, the illumination lamp covered by the knob emits light along the panel surface through the gap between the knob and the panel surface, and the operation display section that includes the tuning knob is arranged as one section. illuminate. Since the light in the direction perpendicular to the panel surface of the illumination lamp is covered by the knob, no light enters the operator's eyes directly. Therefore, the operator can clearly identify the knobs, keys, or characters written to represent their functions on the operation display section in a highly visible state.

The above-mentioned lighting does not require an on/off switch to be located on the panel surface, and the effective area of the operation display section is not reduced.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the panel surface of the direction finder, and the part surrounded by the dotted line is the operation display section 20A, and the other part is the measurement display section 20B. The measurement display section 20B is
It includes a direction display device 11 that is displayed on a CRT, a reception strength display 12 and a reception frequency display 13 that are displayed on an LED. The direction display device 11 also displays waveforms, and the other displays 12 and 13 display numbers. The measurement display section 20B is an internally emissive display and is not externally illuminated.

Next, the operation display section 20A includes various operation buttons and
The knob is arranged near the tuning knob 21. For example, a group of reception mode selection buttons 22, a reception sensitivity knob 23, a display sensitivity knob 24, a signal sound intensity knob 25, and an illumination brightness knob 26 are provided. Each of the above-mentioned knobs and buttons has a name plate provided on the panel surface.

FIG. 2 shows a sectional view of the tuning knob 21, the tuning pulse generator 1 and the illumination lamp 30 connected to the knob and attached to the panel 10. The illumination lamp 30 is located in the cavity on the back side of the tuning knob 21.

The tuning knob 21 can perform axial rotation of the tuning pulse generator 1 and push/pull it to two positions in the axial direction.

The tuning pulse generator 1 forms a flat disk-shaped container, and bearings 2 and 3 provided opposite to each other on the flat surface rotatably support an operating shaft 4. One end of the operating shaft 4 protrudes higher than the panel 10, is inserted into the central shaft of the tuning knob 21, and is pressed by a leaf spring. The other end engages and rotates within the container with a rotating body 5 through which the operating shaft 4 passes through the center. The engagement is
On the upper side, a spring 6 and a steel ball 7 are installed in holes provided in the radial direction of the rotating body 5,
This is done by fitting the steel ball 7 into a ring-shaped groove 4A or 4B provided on the operating shaft 4, and a pin 5D driven perpendicularly to the operating shaft 4 on the lower side is provided on the boss 5B of the rotating body 5. Dividing groove 5C with a width almost equal to the pin width
This is done by fitting into the The lower engagement is
Since the pin 5D can move up and down in the groove 5C, the steel ball 7 fits into the groove 4B when the tuning knob 21 is pulled toward you, and into the groove 4A when the tuning knob 21 is pushed in. In these two positions, the operating shaft 4 is rotatable, and a comb-shaped notch is provided on the periphery of the rotating body 5, and optical switches 8A and 8B generate tuning pulses depending on the rotation angle and rotation direction, and receive the signals. Change the synchronization state of the machine.

Note that the tuning pulse generator 1 has a tuning knob 21.
When pulled toward you, a coarse adjustment pulse is generated, and when pushed in, a fine adjustment pulse is generated. Furthermore, when the tuning knob 21 is pulled toward you, a gap L is created between the periphery of its tip and the panel 20, as shown in the figure, and the radiation of the illumination lamp 30 is emitted laterally from this gap L. , illuminates the operation display section 20A in FIG. When the tuning knob 21 is pushed in, the gap L disappears and the operation display section 20A is not illuminated. Therefore, pull the tuning knob 21 toward you, adjust each operation key and knob on the operation display section 20A, and rotate the tuning knob 21 to roughly adjust the frequency before tuning. Knob 21
Press and rotate to make fine adjustments to the frequency. At this time, the adjustment status can be finely adjusted by looking at the numerical value displayed on the reception frequency display 13.

The illumination lamp 30 may be turned on when the power is turned on without providing a special switch, or the illumination lamp 30 may be placed on the lower side of the container of the tuning pulse generator 1 as shown in an example in FIG. A micro switch 31 is provided on a flat surface, and the tip of the operating shaft 4 drives the actuator of the micro switch 31, so that when the tuning knob 21 is pulled, the illumination lamp 30 is connected to the power source, and when the tuning knob 21 is pulled, the lighting lamp 30 is connected to the power source. It can be turned off when the power is turned off.

[Effect of idea]

As explained above in detail, according to the present invention, by rotating the tuning knob, it is tuned to the received frequency, and by pushing and pulling the tuning knob, the presence or absence of illumination of the operation display section is controlled. can. The illumination lamp of the operation display section is arranged in the cavity on the back side of the tuning knob, and the operation display section is illuminated laterally through the gap between the tuning knob and the panel. Therefore, direct light does not enter the eyes, making it possible to obtain illumination that is extremely easy to see.

Since the switch for turning on and off the illumination lamp is not attached to the panel, the effective area of the panel surface is not narrowed by the switch.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a diagram showing the external appearance of a panel, and FIG. 2 is a sectional view showing a state in which a tuning pulse generator and an illumination lamp are attached to the panel. 1... Tuning pulse generator, 4... Operation axis, 4
A, 4B...Groove, 5...Rotating body, 6...Spring, 7...Steel ball, 8A, 8B...Optical switch,
10...Panel, 20A...Operation display section, 20B
...Measurement display section, 21... Tuning knob, 30...
...Lighting lamp, 31...Micro switch.

Claims (1)

[Claims for Utility Model Registration] A measurement display function and an operation display function are arranged in a position where the operation display function part is illuminated as one section in a display panel of a receiver provided on one panel surface, and (a) a tuning knob that can be rotated and pushed/pushed; (b) an illumination lamp that is covered in a cavity on the back side of the tuning knob and is attached to the panel; (c) the tuning knob (d) illumination means for causing the illumination lamp to illuminate the section by pulling the tuning knob toward you; display panel device.