JPH0319274Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to a structure for displaying the type of electronic circuit package, such as functions and characteristics required of the electronic circuit package.

(2) Prior art and its problems A large number of electronic circuit packages are plug-in mounted on a shelf in parallel. These electronic circuit packages have various characteristics and functions, and it is therefore necessary to distinguish between them. For this reason, conventionally, as shown in Figure 1, printed circuit boards
The front plate IN of the electronic circuit package consisting of PT is attached with rivets R, and the characteristics and functions are encoded and displayed by stamping, printing, engraving, etc. as shown in the diagram ABC, or the printed circuit is printed as shown in Figure 2. If the plate PT is equipped with a lever-shaped ejector IJ that is tiltably engaged with a press-fit pin for pulling it out from a shelf (not shown) at the top and bottom of the front end of the plate PT, it will be displayed in the same way on the front of the ejector IJ. things are being done.

However, problems have arisen in that when a change in function occurs, the display label must be reattached, the face plate, and the ejector must be replaced.

(3) Purpose of the invention The present invention was made in view of the above-mentioned conventional problems, and aims to provide a display structure that allows the minimum number of units to be exchanged easily when a change in display occurs. The purpose is to

(4) Structure of the invention The structure of the invention to achieve the above object is that the electronic circuit package is equipped with an ejector for pulling it out from the shelf at the front end of the electronic circuit package to be plug-in mounted in the shelf. The ejector is provided with an annular through hole penetrating from the front side to the back side, and a display button corresponding to the type of electronic circuit package is press-fitted into the through hole so as to be insertable and removable, and is locked on the annular inner surface.

(5) Embodiments of the invention The present invention will be described in detail below using embodiments with reference to the drawings.

Fig. 3 is a diagram showing the main parts of an embodiment of the present invention, in which figure a is a perspective view, and figure b is a--a of figure A.
This is a side cross section taken along line a'. In the figure, the product name of the electronic circuit package is printed on the front of the ejector IJ by hot stamping. A through hole H passing through the ejector IJ from the front side to the back side is formed at the same time as the ejector IJ is molded with a plastic mold.

An annular projection B is formed on the inner surface of the through hole H. The annular protrusion B is intentionally formed as a burr B by using a front and back molding die, providing abutting protrusions on both sides of the mold, and chamfering the protrusions. The inner end of the burr B is a thin piece and can be elastically deformed relatively easily. However, it is also possible to make it wider.

The DB shown in the figure is a color-coded function display button that is molded in a plastic mold mixed with a coloring agent to indicate the characteristics and type of the electronic circuit package. Consisting of The diameter of this leg is the through hole H of the ejector IJ.
The annular protrusion B is inserted into the annular protrusion B and press-fitted into the inner diameter of the annular protrusion B.

With the above configuration, when the leg of the function display button DB in the through hole H of the ejector IJ is inserted and press-fitted through the annular projection B, the function display button DB will be inserted into the ejector.
It is locked into the IJ and cannot be easily removed. However, if necessary, it can be extracted and replaced with another display. Further, the side cross-sectional width of the annular protrusion B may be wide enough to span the entire length of the annular inner surface of the through hole H, and in this case as well, the dimensional relationship is determined so that the annular protrusion B can be press-fitted in a removable manner.

(6) Effects of the invention As mentioned above, in addition to the original function of the ejector for electronic circuit packages (it can pull out and even push in), adjustments have been made to display part of the electronic circuit package's product name and its characteristics. If there is a change in the display, the display can be easily changed by replacing the function display button with the promised color. In addition to modification, it is naturally possible to attach the electronic circuit packages to electronic circuit packages with predetermined functions and sort them during the manufacturing process.

[Brief explanation of drawings]

FIGS. 1 and 2 are views showing a conventional display structure, and FIG. 3 is a perspective view and a side sectional view of essential parts of an embodiment of the display structure according to the present invention. In the diagram, PT is a printed circuit board, IJ is an ejector,
H is a through hole, B is an annular projection, DB is a function display button,
are shown respectively.

Claims (1)

[Scope of utility model registration request] In an electronic circuit package equipped with an ejector for pulling out the electronic circuit package from the shelf at the front end of the electronic circuit package to be plug-in mounted in the shelf, the ejector is provided with an annular through hole that penetrates from the front side to the back side, and the ejector is provided with an annular through hole passing through from the front side to the back side. A type display structure for an electronic circuit package, characterized in that a display button corresponding to the type of the electronic circuit package is removably press-fitted into a hole and is locked on an annular inner surface.