JPS62116288A - Dial display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dial display device used in audio equipment such as radio receivers and tape recorders with radio receivers.

BACKGROUND OF THE INVENTION In recent years, the internal structure of audio equipment such as radio receivers and tape recorders with radio receivers has become more dense, and there is a tendency for them to become smaller and thinner.

2. Description of the Related Art Conventionally, dial display devices used in audio equipment such as radio receivers and tape recorders with a radio receiver are known to have a pointer running section running parallel to a printed circuit board.

As shown in FIG. 4, this dial display device has a chassis 6 equipped with a back plate 6 of a pointer running section on the top surface of a printed circuit board 2 to which electrical components 3 are directly attached, so as to cover the electrical components 3. The pointer 1 is configured to run on a back plate 6 of the pointer 1, and a panel 4 is provided with a see-through portion and a dial display at a position facing the pointer 1.

Problems to be Solved by the Invention However, in the above configuration, a structural member called the chassis 6 is required to form the back plate of the running part of the pointer 1, and therefore, the inner surface of the panel 4 and the printed circuit board 2 This increases the internal space β, which may be disadvantageous in making devices smaller and thinner.

Moreover, the cost and assembly workability of these structural members were not satisfactory due to their acceptability.

3. The present invention solves these conventional problems, and makes it possible to configure the back plate of the running part of the pointer with a simple structure, and also to reduce the number of structural members and improve assembly workability. At the same time, equipment became smaller.

The object of the present invention is to provide an excellent dial display device that can also contribute to reduction in thickness.

Means for Solving the Problems In order to solve the above problems, the dial display device of the present invention is a printed circuit board arranged parallel to and facing the pointer, and electrical components are arranged in the part where the pointer runs. First, only copper foil is formed, and an ink layer is formed on that part using ink for planar two-service maps as a back plate of the pointer running section, and the pointer runs directly on the ink layer. This is what I did.

Function: With the above-described configuration, the present invention prints the back surface of the pointer travel as an ink layer on the printed circuit board, so structural members such as a chassis are not required, saving space and improving assembly workability. It will improve. Further, this ink layer for running can be formed at the same time as printing the service map.

Embodiment Hereinafter, a dial display device according to an embodiment of the present invention will be described with reference to the drawings. Figures 1, 2, and 4
The figure shows an embodiment of the invention.

The panel 1o having symbols such as letters and numbers of the dial display 13 and a transparent part 14 and the printed circuit board 8 are arranged in parallel, so that the panel 1o can run parallel to the printed circuit board 8 at a position facing the transparent part 14. The pointer 7 is arranged and configured. The electrical components 9 on the two sides of the printed circuit board 8 are configured to be directly attached by soldering or the like at a remote position that does not affect the running surface of the pointer 7. Here, a copper foil 11 for wiring is formed on the running surface, and a copper foil 11 is formed on the surface on which the pointer 7 runs.
1 by printing an ink layer 12 covering the ink layer 100.
The portion serves as a back plate for the running portion of the pointer 7, and the copper foil 11 is hidden from the transparent portion 14.

Incidentally, the ink layer 12 of this traveling part is attached to the electrical parts 9, etc. 5, -
The service map 16 that indicates the connection state of the 7 and 7 can be simultaneously formed using the same ink.

In this way, there is no need for a structural member such as a chassis for the back plate of the running section of the pointer 70, and the printed circuit board 8
It is possible to run the guide on two sides of the panel 1o, and the internal space l between the inner surface of the panel 1o and the printed circuit board 8 can be made extremely small, which is advantageous for making equipment smaller and thinner as space is saved. It is. It also has the advantage of being able to effectively utilize the wiring copper foil portion on the printed circuit board where no electrical components are placed.

Effects of the Invention As described above, according to the present invention, since the back plate of the pointer running section can be formed by an extremely easy process of printing on a printed circuit board, there is no need for other structural members such as a chassis, and the cost is reduced. 2. It is also extremely advantageous in terms of assembly workability. Also,
Since the pointer can be run directly on the printed circuit board, it has the advantage of saving space and contributing to making equipment smaller and thinner.

6 pages

[Brief explanation of drawings]

FIG. 1 is an assembled perspective view of a dial display device according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view showing the main parts of the device.
FIG. 3 is an external perspective view of a device equipped with the same device, and FIG. 4 is an enlarged sectional view showing a conventional example. 7...Pointer, 8...Printed circuit board, e
...Electrical parts, 10...Panel, 11
......Copper foil, 12...Ink layer, 13.
...Dial display, 14...Transparent part. Name of agent Patent attorney Toshio Nakao and one other person 71--ji% needle δ--7° Sonto 1F brown (Fig.

Claims (1)

[Claims] A transparent part is formed on a panel having a dial display part, a pointer running part is provided inside the device, and the pointer running part is arranged so as to be able to run in parallel between the panel and the printed circuit board surface. 1. A dial display device characterized in that an ink layer is applied to a printed circuit board surface at the rear of the pointer section and at the rear of the pointer running section, so that the printed circuit board is used as a back plate of the pointer running section.