JPH0541583Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a printed circuit board mounting device used in electronic devices such as magnetic recording and reproducing devices.

Prior Art An example of a conventional printed circuit board mounting device is shown in FIGS. 3 and 4. In the figure, a first printed circuit board 2 is disposed approximately perpendicular to a frame-shaped base body 1 molded from synthetic resin and having an opening on the top surface.
A second printed circuit board 3 is disposed at a horizontal position substantially orthogonal to the first printed circuit board 2. A convex first locking portion 4 is provided on one end edge 2a of the first printed circuit board 2 on the upper side. The base body 1 is provided with a first locking piece 5 extending in a substantially horizontal direction, and a first locking piece 5 having a curved or sloped surface is provided on one side surface 5a on the lower side of the first locking piece 5. A groove-shaped first engaging portion 8 is provided, which is formed of a first claw portion 6 having a guide surface and a first projection portion 7 . The upper edge 2a of the first printed circuit board 2 is held by the engagement between the first engaging portion 8 and the first locking portion 4, and the lower edge 2b of the first printed circuit board 2 is held. The first printed circuit board 2 is detachably held on the base body 1 by engaging the provided convex projection 9 with an engagement hole 10 provided on the base body 1. The edge 2a of the first printed circuit board 2 and the edge 3a of the second printed circuit board 3 located on the side of the edge 2a are connected to a relay fitting 11 made of synthetic resin that can be deformed (including bending). were connected. The other edge 3b of the second printed circuit board 3 is attached to a mounting claw portion 14 formed on one side of the second locking piece 13 provided on the base body 1.
The second printed circuit board 3 was held on the base 1 by being removably engaged with a mounting engagement portion 16 consisting of a mounting protrusion 15 . When adjusting or repairing, the edge 3b is disengaged from the mounting engagement part 16, and the second printed circuit board is rotated in the direction of arrow A with the relay tool 11 as the rotation center, as shown in FIG. At a second position substantially parallel to the first printed circuit board 2 indicated by the two-dot chain line, that is, on the back side surface portion 5b side of the one side surface portion 5a where the first claw portion 6 of the first locking piece 5 is formed. It was positioned so as to be substantially parallel to the first printed circuit board 2.

Problems to be Solved by the Invention However, in the above configuration, the second printed circuit board 3 is rotated in the direction of arrow A to replace or adjust parts of the first printed circuit board 2 and the second printed circuit board 3. In this case, the second printed circuit board 3
In order to keep the second printed circuit board 3 rotated in the direction of arrow A, the operator must hold the second printed circuit board 3 or
Either the edge 3b of the second printed circuit board 3 or the edges 3c on both sides of the second printed circuit board 3 are held using a jig. Therefore, there were problems of poor workability and high costs.
Alternatively, in order to hold either of the edges 3b, 3c, the base body 1 is extended to a position above the back surface portion 5b of the first locking piece 5,
A locking piece for temporary fixation similar to the first locking piece 5 or the second locking piece 13 was provided, but by providing this locking piece for temporary fixation, the height of the product becomes higher. Alternatively, since the width becomes wider, there is a drawback that the size becomes larger.

Means for Solving the Problems The printed circuit board mounting device of the present invention includes a first printed circuit board whose one edge is supported by a base body, and a second printed circuit board whose other end is attached to one side surface near the tip of the first printed circuit board. an elastically deformable first locking piece having a groove-shaped first engaging portion that slidably engages with the edge in a surface direction thereof, and having the other end fixed to the base body; , a first position substantially perpendicular to the first printed circuit board, and a second position parallel to the first printed circuit board on the back side of the one side surface having the first engaging portion. a second printed circuit board whose one edge is rotatably connected to the other edge of the first printed circuit board in the vicinity of the other edge of the first printed circuit board; , a second locking piece whose one end is fixed to the base body so as to hold the second printed circuit board in the first position; and a second locking piece guided to the back surface portion near the tip of the first locking piece. a second surface formed with the surface and rotated to the second position;
a second engaging portion that engages with the printed circuit board to prevent the printed circuit board from returning to the first position, and the guide surface is configured to rotate the printed circuit board from the first position to the second position. It is configured to intersect with the locus of movement of the other edge of the second printed circuit board.

Effect The present invention has the above-described configuration, in which the first engaging part that is engaged with the first engaging part of the first printed circuit board is formed on one side of the first engaging piece, and the first engaging part is formed on one side of the first engaging piece. Since the second engaging part that is engaged with the second engaging part of the second printed circuit board is formed on the back side of the first engaging piece, the second engaging part that is engaged with the second engaging part of the second printed circuit board is The printed circuit board can be rotated and temporarily fixed with one edge of the second printed circuit board located at the second position on the back surface of the locking piece, improving work efficiency and using the jig. etc. are no longer necessary.
Furthermore, the product can be made smaller.

Embodiment Hereinafter, a printed circuit board mounting apparatus according to an embodiment of the present invention will be described with reference to the drawings. still,
Components similar to those of the prior art are denoted by the same reference numerals as in FIGS. 3 and 4, and description thereof will be omitted. FIG. 1 shows a printed circuit board mounting device according to a first embodiment of the present invention. A second claw part 17 and a second claw part 17 are provided on the back side part of the one side part 5a on which the part 6 is formed.
It is characterized in that a second engaging portion 19 consisting of a protruding portion 18 is provided. This second engaging portion 19 has the other end 3 of the second printed circuit board 3 (not shown).
b is disengaged from the second locking piece 13 provided on the base body 1, and rotated in the direction of the arrow A, thereby disengaging the second locking piece 13 located on the upper side of the first locking piece 5. A second locking portion 20 formed on one end edge 3a of the second printed circuit board 3 is engaged. Note that within the second engaging portion 19, a spatial distance 21 is provided between the one side surface portion 5a of the first locking piece 5 and the end surface of the first locking portion 4 of the first printed circuit board 2. It is set up. This spatial distance 21
When the second printed circuit board 3 rotates in the direction of the arrow A, the second locking portion 20 is attached to the second claw portion 17.
A second guide surface 22 consisting of a curved surface or slope formed to intersect the movement locus of the second locking portion 2
The first locking piece has a distance that allows it to elastically bend in the direction of the first printed circuit board 2 so that the first locking piece can move while contacting the first printed circuit board 2. Note that the second guide surface 22 and the first guide surface 6a may be formed into a tapered shape. With the above configuration, the second printed circuit board 3 held at the first position is rotated from the first position, and the second printed circuit board 3 is attached to one side of the upper side of the first locking piece 5. When the second printed circuit board 3 is rotated to the second position on the part 5b side, the second printed circuit board 3 is held at that position by the second engaging part 19.

Therefore, the workability of adjusting and replacing the electrical components of the printed circuit boards 2 and 3 is improved, and the product can be made smaller.

Next, referring to FIG. 2, a printed circuit board mounting apparatus according to a second embodiment will be explained. In this embodiment, a hole 23 is formed in the center of the first locking piece 5. A third locking piece 24 is provided in the hole 23 extending from the side of the base body 1 where the first locking piece 5 is extended, and a back surface portion 24b of the third locking piece 24, i.e. A second claw portion 17 on which a second guide surface 22 is formed and a second projection portion 18 are provided on the same side as the back side portion 5b of the first locking piece 5, and a second engagement portion 19 is formed. That is, in this embodiment, the first locking piece 5 in the embodiment shown in FIG. It is characterized in that it is separated into a portion provided with a second engagement portion 19 consisting of a second claw portion 17 and a second protrusion portion 18, and can be operated separately.

By dividing the first locking piece 5 in this way, the second printed circuit board 3 can be attached to the other edge 3 (not shown).
b disengages from the second locking piece 13 provided on the base 1, rotates to the second position, and connects the second locking portion 20 of the second printed circuit board 3 with the third locking piece 13. When the second engagement portion 19 of the stopper piece 24 engages, the first stopper piece 5 is attached to the lower side, that is, the first printed circuit board 2
A locking piece 24 that does not move to the side and has a spatial distance 21 between it and the first locking portion 4 of the first printed circuit board 2
can move independently up and down. Therefore, electrical components can be disposed on the first printed circuit board 2 near the first claw portion 6 of the first locking piece 5 and the tip of the first projection portion 7. Note that there is a space between the second locking part 20 of the second printed circuit board 3 locked by the third locking piece 24 and the bottom surface of the second engaging part 19 of the third locking piece 24. By providing a spatial distance similar to the spatial distance 21, the first engaging portion 8 and the second engaging portion 19 that engage the first printed circuit board 2 and the second printed circuit board 3, respectively, The first printed circuit board 2 and the second printed circuit board 3 can be removed individually, which further improves the workability of adjusting and replacing the electrical components of the first printed circuit board 2 and the second printed circuit board 3. be able to.

Effects of the Invention As described above, according to the present invention, the first engaging part to be engaged with the first engaging part of the first printed circuit board is formed on one side of the engaging piece, and the first engaging part is formed on one side of the engaging piece. Since the second engaging part that is engaged with the second engaging part of the second printed circuit board is formed on the back side of the first securing piece, the second printed circuit board can be rotated. The second printed circuit board can be temporarily fixed with one edge of the second printed circuit board located on the back side of the first locking piece, improving workability and eliminating the need for a jig or the like. Furthermore, since there is no need for a locking piece for temporary fixation as in the prior art, the product can be made smaller.

[Brief explanation of the drawing]

1 is a cross-sectional perspective view of a main part of a printed circuit board mounting device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional perspective view of a main part of a printed circuit board mounting device according to a second embodiment of the present invention, and FIG. The figure is a perspective view of a main part of a conventional printed circuit board mounting device, and FIG. 4 is a sectional side view of a main part of the same device. 1...Base body, 2...First printed circuit board, 2a
...End portion, 3...Second printed circuit board, 3b...
End portion, 4...first locking portion, 5...first locking piece, 5a...one side surface portion, 5b...back side surface portion, 6...
...first claw portion, 6a...first guide surface, 7...first protrusion, 8...first engaging portion, 9...protrusion, 10...engaging hole, 11... ...Relay tool, 12...
Mounting locking part, 13... Mounting locking piece, 14...
Mounting claw part, 15... Mounting projection part, 16... Mounting engagement part, 17... Second claw part, 18... Second
protrusion, 19...second engagement part, 20...second
21... Space distance, 22... Second guide surface, 23... Hole, 24... Third locking piece, 2
4a... One side part, 24b... Back side part.

Claims (1)

[Scope of utility model registration request] A first printed circuit board whose one end edge is supported by the base body, and a recessed groove-shaped groove that engages with the other end edge of the first printed circuit board on one side surface near the tip of the first printed circuit board so as to be slidable in the surface direction. an elastically deformable first locking piece having a first engaging portion and having the other end fixed to the base; a first position substantially perpendicular to the first printed circuit board; One edge of the first printed circuit board is rotatable between a second position parallel to the first printed circuit board and a second position parallel to the first printed circuit board on the back side surface side of the one side surface having the first engaging part. A second printed circuit board connected near the other end edge is removably engaged with the other end edge of the second printed circuit board, and holds the second printed circuit board in the first position. a second locking piece whose one end is fixed to the base body; and a second locking piece formed with a guide surface on the back side near the tip of the first locking piece, and rotated to the second position. a second engaging portion that engages with the second printed circuit board and prevents the second printed circuit board from returning to the first position, and the guide surface rotates from the first position to the second position. A printed circuit board mounting device characterized in that the device is configured to intersect with a movement locus of the other edge of the second printed circuit board.