JPH027504Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a printed circuit board mounting device.

Conventionally, this type of device connects the panel on which the switch is mounted and the printed circuit board using claws that also serve as spacers at the periphery of the panel, but due to their nature, panels or printed circuit boards are prone to warping. The distance between the two tends to be incorrect in the center. In order to prevent this, it is possible to install a spacer between the centers and fix it with screws, etc., but if the panel has windows for installing the switch, the area around those windows may be The width of the formed frame is narrow, which makes it impossible to thread the panel. Furthermore, even if the threads could be cut, the screws would protrude from the top of the panel, making it impossible to attach a printed sheet of polyester or the like to the top of the panel.

The purpose of this invention is to overcome these conventional drawbacks and to enable a panel and a printed circuit board to be held parallel to each other with a simple structure.

Therefore, in order to achieve this purpose, this invention provides a hole approximately in the center of the printed circuit board, and also provides a bent piece integrally at the window periphery of the panel 3 that extends toward the printed circuit board. A spaced apart part having a width wider than the diameter of the hole,
Furthermore, protrusions that fit into the holes are formed on the free end sides thereof.

An embodiment of this invention will be described below with reference to the drawings.

That is, in FIGS. 1 to 4, a hole 2 is provided approximately in the center of a printed circuit board 1, passing through the board. A panel 3 disposed substantially parallel to the printed circuit board 1 is provided with a plurality of windows 4, 4 arranged in a matrix in which a switch such as a key switch can be mounted. A bent piece 5 extending toward the printed circuit board 1 side is integrally provided at the peripheral edge of the window located approximately in the center of the panel 3, and a portion of this bent piece closer to the panel 3 has a diameter smaller than that of the hole 2. Separation part 6 with wide width
However, protruding pieces 7 that fit into the holes 2 are formed near the free ends, and these protruding pieces form a pair of legs with notches 8 provided in the axial direction, This allows it to engage with the hole 2 elastically. Further, a shoulder portion 9 is formed between the spacing portion 6 and the protrusion portion 7, and is adapted to abut against the printed circuit board 1 when the protrusion portion 7 is fitted into the hole 2. Furthermore, the protruding piece 7 connects the printed circuit board 1 and the panel 3 to each other by bending the portion protruding from the printed circuit board 1 while being fitted into the hole 2. As a result, the distance between the printed circuit board 1 and the panel 3, especially in the center thereof, is maintained at a predetermined distance determined by the height of the spacing section 6.

As described above, this invention provides a hole 2 in the approximate center of the printed circuit board 1 and integrally provides a bent piece 5 extending toward the printed circuit board 1 at the periphery of the window 4 of the panel 3. On the side of the panel 3, a spacer 6 having a width wider than the diameter of the hole 2 is provided.
In addition, since the protruding pieces 7 that fit into the holes 2 are formed on the free end sides, the panel 3 and the printed circuit board 1 are prevented from warping, especially in the central part, and the panel 3 and the printed circuit board 1 are prevented from warping. There is an advantage that the distance from the substrate 1 can be maintained at a predetermined value.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the mounting device in this invention, Fig. 2 is a perspective view of Fig. 1 seen from the back side, Fig. 3 is a front sectional view, and Fig. 4 is a side sectional view. be. DESCRIPTION OF SYMBOLS 1... Printed circuit board, 2... Hole, 3... Panel, 4... Window, 5... Bent piece, 6... Separation part, 7... Protruding piece part, 8... Notch part, 9 ...Shoulder.

Claims (1)

[Scope of utility model registration request] It comprises a panel 3 with a plurality of windows 4 arranged in a matrix for fixing switches, and a printed circuit board 1 disposed parallel to this panel, with a hole 2 formed approximately in the center of the printed circuit board. At the same time, a bent piece 5 extending toward the printed circuit board 1 side is integrally provided at the peripheral edge of the window 4 of the panel 3, and the bent piece 5 has a width wider than the diameter of the hole 2 on the panel 3 side. and a protruding piece 7 that fits into the hole 2 on the free end side thereof, and with the protruding piece 7 inserted into the hole 2, the separating part 6 and The shoulder portion 9 formed between the protrusion portion 7 is brought into contact with the printed circuit board 1, thereby maintaining the distance between the printed circuit board 1 and the panel 3 at a predetermined value. Mounting equipment for printed circuit boards.