JPS58107700A - printed circuit board equipment - 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 The present invention relates to a printed circuit board device, and an object of the present invention is to easily and reliably attach and detach a connector provided on a shelf (hereinafter referred to as a shelf) and a printed circuit board.

A conventional printed circuit board device will be explained using FIG.

FIG. 1 shows the insertion of an extension board 1 along a guide groove 9 of a shelf 8 for checking a circuit board 100 mounted on a conventional printed circuit board device. Note that the extension board 1 is used only when checking the circuit board 10Q. In the conventional printed circuit board device, first, the extension board 1 is inserted into the upper and lower sides of the shelf 8 along guide grooves 9 provided opposite to the extension board 1, and the extension board has a connector for mounting the circuit board 100. The connector 10 is press-fitted into the connector 10 for attaching the circuit board 100 attached to the extension board 1, and the circuit board 100 is then attached to the connector of the extension board 1.

However, if the number of bins in the connector 1o is small, this is not so much of a problem, but if the number of bins is large, a large amount of force is required to attach and detach the printed circuit board and the connector, making maintenance difficult. Ta.

The present invention eliminates these drawbacks and provides a printed circuit board device that allows the printed circuit board and the connector to be easily and reliably removed.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 6.

FIG. 2 is a partial perspective view of an extension board and a circuit board of a printed circuit board device according to an embodiment of the present invention, FIG. 3 is an explanatory diagram of the operation of the same device when the board is attached, and FIG. 4 is a section C-C of the same device. FIG. 6 is an operational explanatory view showing the relationship between the card ejector provided on the extension board of the device and the shelf. FIG. 6 is a partial sectional view of the shelf of the device.

In the figure, 1 indicates the circuit board 100 in an operating state.

At the rear of the extension board 1, the circuit board 10 is rotatably supported by a fixture 2 with a pin 4.
Card ejectors 3 are provided on the upper and lower sides, respectively, to serve as levers when attaching and detaching the card.

Further, at the rear of the extension board 1, a guide auxiliary metal fitting 7 and a guide metal fitting 6 are provided, and the hook fittings 6 and 7 constitute a guide groove when the circuit board 1 is mounted and fixed to the connector 6.

8 has a circuit board, oo or extension board, at the rear.
(This is a shelf that has a connector 1o for mounting, and the shelf 8 is provided with guide grooves 9 in the vertical direction that serve as guides when inserting the board 100.1. Reference numerals 11 are provided at the top and bottom of the front part of the shelf 8. The shelf frame 11 has a U-shaped cross section, and the shelf frame 11 has a guide groove 9.
and extends perpendicularly to.

Next, the attachment/detachment operation of this printed circuit board device will be explained. First, when attaching the extension board 1 to the connector 1o, first attach the circuit board 10o to the connector 6, and then insert the extension board ← through the guide groove 9 of the shelf 8 just before the connector 1o of the shelf 8. card ejector 3
Insert it in the state shown by the solid line in FIG.

That is, at this time, the contact portion 31 of the card ejector 3 is located within the recess of the shelf frame 11.

Next, by rotating the end 32 of the card ejector 3 in the direction of the arrow mark as shown in FIG. Since the entire extension board 1 moves in the direction of arrow B with respect to the shelf 8, the extension board 1 is connected to the connector 10.
Can be press-fitted into.

In this case, since the card ejector 3 is rotatably supported by the pin 4, it acts as a lever and requires approximately 102 degrees of force compared to the case of direct press-fitting by hand.

Next, when removing the extension board 1 from the connector 10, rotate the end 32 of the card ejector 3 in the direction of arrow i as shown in FIG.
By press-contacting the concave side surface 11b of the connector 1o and further rotating the extension board 1, the entire extension board 1 can be moved in the direction of arrow B with respect to the shelf 8, and the extension board can be removed from the connector 1o.

In this case as well, the card ejector 3 acts as a lever, so compared to the case where the card is removed directly by hand, the card ejector 3 acts as a lever, so the same effect as when installing the card
It only takes about as much force.

10 2° In this embodiment, an example was shown in which card ejectors were disposed on the upper and lower sides of the extension board, but the present invention is not limited to this, and a single card ejector may be used for a small printed circuit board.

In addition, the card ejector is made of an insulating material such as resin,
By holding the card ejector in the hand, it is possible to eliminate the problem of contaminating the exposed conductive portion provided on the board with the hand.

Next, another embodiment of the present invention will be described using FIGS. 7 to 11.

FIG. 7 is a perspective view of a colored printed circuit board device having a card ejector having a display section on a circuit board according to another embodiment of the present invention, FIG. 8 is a perspective view of a card ejector of the same device, and FIG. FIG. 10 is a perspective view of the card ejector with a display board attached thereto, FIG. 10 is a perspective view of the display board, and FIG. 11 is a sectional view of the card ejector.

In the figure, 3a is a card ejector having a notch 3b, a circuit board 1oO is inserted into this notch 3b, a pin is inserted into a through hole 3C, and the card ejector 3a is rotatably supported on the circuit board 1oo. are doing.

The card ejector 3a has a projecting piece 12a on the front surface, and a display plate 12 made of an elastic body is rotatably held therein. Further, on the upper and lower sides of the card ejector 3a, recesses 13a and 13b are provided, respectively, for engaging the protruding piece 12a of the display board 12, as shown in FIG.

Note that on both sides of the display board 12, there are indications indicating before and after the modification, for example, "before modification" is written on the front surface.

``After modification 1'' is written on the back side.Shelf 8 used is the same shelf as in the previous example.

To attach the circuit board 100 configured in this way to the connector 1o, insert it in the direction of the arrow through the guide groove 9 of the shelf 8 as shown in FIG. 7, and press-fit the circuit board 10'O into the connector 1o. The operation at this time and the operation when removing the card are the same as in Example A above, and one end of the card ejector 3a is brought into contact with the side wall of the recessed portion of the two-shelf frame 11, and the card ejector 3a is used as a lever to perform attachment and detachment. .

In addition, if the circuit board 1oo is a board before modification, the display board 1
2 is rotated in the direction of the arrow as shown in FIG.
3a to display that the circuit board 10o is the original board before modification, and after the circuit board 100 has been modified, the projecting piece 12a of the display board 12 is elastically deformed. l:, remove it from the recess 13b, and remove it from the lower recess 13b.
The circuit board 100 is inserted and engaged to indicate that the circuit board 100 is a modified board.

By doing so, it is possible to display whether it is before or after modification by simply rotating the display board 12.

As described above, according to the present invention, a printed circuit board can be easily and reliably attached to and detached from a connector provided on a shelf. Further, according to the present invention, since the card ejector is provided with a rotary display board, it is easy to tell whether the printed circuit board is before or after modification, for example, without removing the board from the connector. can be known.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional printed circuit board device, FIG. 2 is a partial perspective view of an extension board and a circuit board of a printed circuit board device according to an embodiment of the present invention, and FIG. 3 is a perspective view of the same device when the board is attached. 4 is a cross-sectional view of the C-C section of the device, FIG. 5 is an explanatory diagram of the operation showing the relationship between the card ejector provided on the extension board of the device and the shelf, and FIG. 6 is a diagram of the device. FIG. 7 is a perspective view of a printed circuit board device according to another embodiment of the present invention; FIG. 8 is a perspective view of a card ejector of the same device; FIG. 9 is a perspective view of the card ejector. , FIG. 10 is a perspective view of a display board attached to the card ejector, and FIG. 11 is a sectional view of the card ejector. 1...Extension board, 2...Fixing metal fittings, 3
, 3a... Card ejector, 4...
Bin, 6, 10... Connector, 8...
Shelf, 9... Guide groove, 11...
Shelf frame, 1oO...Circuit board. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 14 Figure 5 Figure 11A6 Figure 7 WIA8 Figure c 11!9 Figure 12η l? Figure 11

Claims (1)

[Claims] (1) A shelf having a guide groove for guiding a printed circuit board, a shelf frame having a U-shaped cross section extending substantially perpendicular to the guide groove, and a connector for connecting the printed circuit board, and a conductive part connected to the connector. a printed circuit board having a rotatable shape, the printed circuit board is rotatably supported by the printed circuit board, one end is brought into contact with the inner wall of the recess of the shelf frame, and the printed circuit board is rotated in a specific direction to move the printed circuit board forward in the specific direction. A printed circuit board device, wherein the printed circuit board is provided with a card ejector that moves the printed circuit board backward by rotating in a direction opposite to that of the printed circuit board. b) a shelf having a guide groove for guiding a printed circuit board, a shelf frame having a U-shaped cross section extending substantially perpendicular to the guide groove, and a connector for connecting the printed circuit board;
a printed circuit board having a conductive part connected to the connector, the printed circuit board is rotatably supported by the printed circuit board, and the printed circuit board is rotated in a specific direction by bringing one end into contact with the inner wall of the recess of the shelf frame. The printed circuit board device is provided with a card ejector on the printed circuit board, which moves the printed circuit board backward by moving it forward and rotating in a direction opposite to the specific direction, and also includes a display board rotatably supported on the front surface.