JPH0745985Y2 - Printed board mounting device - Google Patents

Description

[Detailed Description of the Invention] [Outline] A printed board mounting device for fixing a printed board to a mounting board such as a chassis. The number of mounting screws is reduced, the wiring pattern is prevented from being damaged, and the area around the contact portion of the printed board mounting tool is effective. For the purpose of utilization and cost reduction, the base part that is set on the mounting board and the pinch that is provided in parallel on the side opposite to the setting surface of this base part with a gap for inserting the printed board And a mounting member having a screwing portion formed on the sandwiching piece, and a screw of the sandwiching piece penetrating the base portion of the mounting member and the printed board inserted into the gap from the mounting board side. The screw member is screwed into the joint.

[Field of Industrial Application] The present invention relates to a printed board mounting device for fixing a printed board to a shank or the like.

[Conventional technology]

As a means for mounting the printed board on the chassis or the like while separating it from the mounting surface by a desired amount, there is a mounting tool formed of a metal or a resin material. When the printed board using the mounting tool is fixed to the chassis or the like, the mounting tool is used. It is required that the number of connecting screws between the printed circuit board and the chassis is small, the appearance of the printed circuit board mounting part and the wiring pattern are not damaged, and the area around the mounting part contact part of the printed circuit board can be effectively used.

Conventionally, a printed board 2 is attached to a mounting board 1 such as a chassis or a case.
As shown in Figure 9,
The space member 3 is fixed to the mounting board 1 by tightening a screw 4 which penetrates the mounting board 1 and is screwed into one end of a pipe-shaped space member 3 of a desired length having a female screw formed on the inner peripheral surface thereof. By screwing the screw 5 penetrating 2 into the upper end of the space member 3 and tightening it,
The method of fixing the printed board 2 to the space member 3, as shown in FIG. 10, a mounting piece 6 is formed by cutting and raising a part of the mounting board 1 to a desired length and bending it in an inverted L shape. A method of fixing the printed board 2 to the mounting board 1 by screwing the screw 7 through the tapped hole formed in the mounting piece 6 and tightening the screw 7, and as shown in FIG. And the fixed piece 8b formed by bending the installation piece 8a at one side edge at a right angle.
Prepare a mounting bracket 8 having
After fixing 8b to the mounting substrate 1 with the screw 9, the installation piece 8a
There is a method in which the printed board 2 is tightened and fixed by the screw 10.

[Problems to be solved by the device]

In the fixing method of FIG. 9 described above, since the pipe-shaped space member 3 having the internal thread formed on the inner peripheral surface is used, the cost is high and two screws are used to fix one place of the printed board 2. Since it becomes necessary, when the number of fixing points of the printed board 2 increases, the number of screws increases twice as much as the fixing points, the fixing work of the printed board 2 becomes complicated, and the wiring pattern is formed in the screw insertion portion of the printed board 2. If present, there is a problem that the wiring pattern is easily damaged by tightening the screws.

In the fixing method shown in FIG. 10, the printed board 2
Although the number of screws for fixing the mounting board 6 can be reduced, as the mounting height of the printed board 2 with respect to the mounting board 1 increases, the cut-and-raised length of the mounting piece 6 increases, and the opening area generated in the mounting board 1 accordingly. However, there is a problem that the mounting board, that is, the appearance of the chassis and the case is deteriorated and that dust easily enters through the opening.

Further, the fixing method shown in FIG. 11 has a problem that the number of mounting screws is increased as in the case of FIG. 9 and the work of fixing the printed board becomes complicated.

The present invention has been made to solve the above-described problems, and can reduce the number of mounting screws, prevent the appearance of the mounting board from being damaged, and damage the wiring pattern. It is an object of the present invention to provide a low-cost printed board mounting device capable of effectively utilizing the peripheral portion of the fixed portion of.

[Means for Solving the Problems]

The printed circuit board mounting device of the present invention includes a base portion 21, 31, 41, 51, 61 set on the mounting substrate 1, and a space for inserting the printed board on both sides of the base portion opposite the set.
A fixture having a sandwiching piece provided in parallel with 23,33,43,52,62 and screwing portions 24,34,44,55,65 formed on the sandwiching piece.
20,30,40,50,60 and screws that penetrate the base plate of the fixture and the printed board 2 inserted in the gap from the side of the attachment substrate 1 and are screwed into the screwing portions of the sandwiching pieces. The sandwiching pieces 22, 32, 43, 54, 64 are provided with members 26, 56, 66, and one end of the printed board 2 inserted into the gaps 23, 33, 43, 52, 62 is screwed. The size is such that a narrow pressure is maintained, and the screwing portion is provided substantially at the center.

[Action]

When the screw members 26, 56, 66 are screwed into the screwing portions 24, 34, 44, 55, 65 of the holding pieces and tightened, the fixtures 20, 30, 40, 50,
60 is fixed to the mounting board 1, and the clamping pieces 22, 32, 43, 5
4, 64 clamp the printed board 2 in the gap and fix it to the fixture.

Therefore, in the present invention, the number of mounting screws can be reduced, the wiring pattern in the pinching portion can be prevented from being damaged, and the mounting member is made of an insulating material, so that the mounting plate contact portion around the mounting member contact portion of the printed board can be prevented. In addition to enabling effective use, it also enables cost reduction.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment I FIGS. 1 and 2 show a first embodiment to which the printed board mounting method of the present invention is applied. FIG. 1 is an overall sectional view, and FIG. 2 is a perspective view of a mounting tool. Is.

In FIG. 1, 1 is a mounting board, 2 is a printed board, and 20 is a fitting for fixing the printed board 2 to the mounting board 1.

The fixture 20 is formed from a steel plate material, and has a base 21 that is bent and formed so as to surround three sides as shown in FIG. 2, and an upper edge of a rear wall 21a of the base 21. And a holding piece 22 which is integrally connected to the base portion 21 and is horizontally bent so as to cover the upper surface opening of the base portion 21, and the holding piece 22 and the base portion
A gap 23 having a size slightly larger than the thickness of the printed board 2 is formed between the left and right side walls 21b and 21c of the upper end edge of the printed board 2, and a tap hole 24 is formed substantially at the center of the holding piece 22. Has been formed. Further, the height H of the base 21 is determined by the mounting board 1
It is arbitrarily set according to the mounting height of the printed board 2 to the.

The printed board 2 using the fixture 20 configured as described above
When fixing to the mounting substrate 1, for example, as shown in FIG. 1, the edge portion of the printed board 2 is inserted into the gap 23 of the mounting tool 20, and the mounting hole 1a is aligned with the tap hole 24 of the holding piece 22. After that, the mounting tool 20 is set on the mounting portion on the mounting board 1, the screw 26 is inserted from the lower surface side of the mounting board 1 into the mounting hole 25 formed in the mounting board 1, and the mounting hole of the printed board 2 is further installed. 1a
After inserting it into, tap the insertion hole into the tap hole 24 and tighten. As a result, the sandwiching piece 22 bends toward the printed board 2 side and presses the printed board 2 against the upper end surfaces of the left and right side walls 21b, 21c of the base portion 21 to hold the sandwiching force, and at the same time, the fixture 20 is entirely attached by the screw 26 to the mounting board. It will be tightened and fixed to 1.

Therefore, in this embodiment as described above, one screw
With 26, the fixture 20 can be fixed to the attachment board 1 and the printed board 2 can be fixed to the attachment board 20 at the same time, and accordingly, the number of steps for attaching the printed board 2 to the attachment board 1 is reduced. Since the workability is improved and the printed board 2 is held and held in a relatively wide area by the holding pieces 22, even if there is a wiring pattern in the mounting portion of the printed board 2 that comes into contact with the mounting tool 20, Unlike the conventional screwing method, the tightening stress concentrated on the wiring pattern is not given, and the change and damage of the pattern can be prevented.

Embodiment II FIG. 3 is a perspective view showing a second embodiment of the printed board mount of the present invention.

The fixture 30 in this embodiment is formed by bending a short shelf steel plate material into a regular square shape to integrally form the base portion 31 and the holding piece 32 to the mounting board, and the holding piece 32 and the vertical piece opposed thereto. A gap 33, which is slightly larger than the thickness of the printed board 2, is provided between the upper edges of the pieces 31a. The gap 33 serves as the insertion portion of the printed board 2, and a tap hole 34 is formed in the central portion of the holding piece 32. , And the bottom piece of the base 31 that faces the sandwiching piece 32.
31b has a screw insertion hole 35 whose axis matches the tap hole 34.
Has been drilled.

When the printed board is fixed to the mounting board using the mounting tool 30 configured as described above, the printed board is inserted into the gap 33 of the mounting tool 30 as in the case of FIG. After inserting the screw inserted from the above into the insertion hole 35 of the fixture 30, through the mounting hole of the printed board inserted into the gap 33, screw it into the tap hole 34 of the holding piece 32, and tighten it to attach the fixture 30 to the mounting board. At the same time that the printed board is clamped by the clamp piece 32 and the vertical piece 31a, the printed board is clamped.

Also in this embodiment, the same effect as that of the first embodiment can be obtained.

Embodiment III FIG. 4 is a perspective view showing a third embodiment of the printed board mounting member of the present invention.

The fixture 40 in this embodiment forms a base portion 41 with a metal pipe material having a desired diameter, and an extended tongue piece continuously connected to the upper edge of the base portion 41, leaving the continuous base portion 42a. Base part 41
A printed board holding piece 42 is formed by horizontally bending so as to cover the upper surface opening of the board, and a gap 4 into which the printed board is inserted between the holding piece 42 and the upper end opening edge 41a of the base 41.
3 is formed, and a tap hole 4 is formed in the middle of the holding piece 42.
Formed 4.

When the printed board is fixed to the mounting board by using the mounting tool 40 configured as described above, the screw inserted from the lower surface side of the mounting board is inserted into the base 41 as in the case shown in FIG. Then, after passing through the printed board to be inserted into the gap 43, screwing it into the tap hole 44 and tightening it, the fixture 40 and the printed board can be integrally and simultaneously fixed to the mounting board.

It goes without saying that the same effects as in the first embodiment can be obtained in this embodiment as well.

Embodiment IV FIGS. 5 and 6 show the fourth embodiment of the printed board mounting device of the present invention.
FIG. 5 is an overall perspective view and FIG. 6 is a sectional view thereof.

The fixture 50 in this embodiment is composed of a quadrangular prism 51 having a desired thickness and made of a synthetic resin material such as 66-nylon. The quadrangular prism 51 has a predetermined size into which the printed board 2 is inserted. A gap 52 is formed at a predetermined depth in a direction that horizontally traverses the square columnar body 51, and with the gap 52 as a boundary, the lower side is a base portion 53, and the upper side is a printed board holding piece 54. At the same time, in the central portions of the base portion 53 and the sandwiching piece 54,
Screw insertion holes 53a and 54a with the same axis are formed respectively, and a nut 55 is provided inside the holding piece 54.
It is buried concentrically with 54a.

When the printed board 2 is fixed to the mounting board 1 using the mounting tool 50 configured as described above, the edge of the printed board 2 is inserted into the gap 52, and the mounting board 1 and the base 1 are mounted from the lower surface side of the mounting board 1. By fixing the screw 56 inserted through the insertion hole 53a of the portion 53 and the printed board 2 into the nut 55 by tightening, the fixture 50 is fixed to the mounting substrate 1 and at the same time, the clamping piece.
It is performed by sandwiching the printed board 2 from both sides by the 54 and the base part 53.

In this embodiment as well, the same effects as those of the third embodiment can be obtained, and since it is possible to integrally mold with a synthetic resin material, it is possible to reduce the cost, and the fixture is an insulating material. There is an effect that the periphery of the printed board in the contacting portion can be effectively used.

Embodiment V FIGS. 7 and 8 show a fifth embodiment of the printed board mounting device of the present invention.
FIG. 7 is an overall perspective view and FIG. 8 is a sectional view thereof.

In this embodiment, a cylinder body 61 made of a synthetic resin material such as the first 66-nylon and having a desired diameter is used. On the upper end side of the cylinder body 61, a gap 62 having a predetermined size into which the printed board 2 is inserted. Is formed horizontally and at a predetermined depth,
With the gap 62 as a boundary, the lower side serves as a base portion 63, and the upper side serves as a printed board holding piece 64, and the center portions of the base portion 64 and the holding piece 64 are screw-inserted with their axes aligned. hole
63a and 64a are respectively bored, and a nut 65 is embedded inside the holding piece 64 concentrically with the screw insertion hole 64.

Even when the printed board 2 is fixed to the mounting board 1 by using the mounting tool 60 configured as described above, the mounting tool 60 in this embodiment is similar to the fourth embodiment in that the edge of the printed board 2 is fixed. After inserting into the gap 62 of the fixture 60, a screw 66 is inserted from the lower surface side of the attachment substrate 1 through the insertion hole 63a of the attachment substrate 1, the base 63 and the printed board 2 into the nut 65 and tightened.

Also, in this embodiment, the same effect as that of the fourth embodiment can be obtained.

In addition, in the said 1st-3rd Example, although the case where the fixture was formed with the steel plate material was described, it is not limited to this and it is also possible to form using a synthetic resin material.

[Effect of device]

As described above, according to the present invention, the holding piece is provided on the side opposite to the setting surface of the base portion set on the mounting board through the gap for inserting the printed board, and the base portion and the gap are provided from the mounting board side. The printed board including the fixture is integrally fixed to the mounting board by screwing a screw inserted through the printed board inserted in the clamping piece into the clamping piece, so that the mounting board of the fitting is mounted with one screw. Can be fixed to the mounting board and the printed board can be fixed to the mounting tool, which facilitates the mounting work of the printed board.

Also, the printed board inserted in the gap is clamped from both sides by the base part and the clamp piece, and the tightening force of the screw does not act directly on the printed board.Therefore, there is a wiring pattern in the contact area with the fixture. However, there is no risk of deforming or damaging it, and by forming the fixture with an insulating material such as synthetic resin, it is possible to effectively use the periphery of the printed board in the portion that comes into contact with the fixture, and This has the effect of improving productivity and reducing costs.

[Brief description of drawings]

FIG. 1 is an overall cross-sectional view of a first embodiment to which the printed board mounting method of the present invention is applied, FIG. 2 is a perspective view of a mounting tool of the first embodiment, and FIG. 3 is a second embodiment of the present invention. FIG. 4 is a perspective view of a fixture showing a third embodiment of the present invention, FIG. 5 is a perspective view of a fixture showing a fourth embodiment of the present invention, and FIG. 5 is a sectional view taken along line VI-VI in FIG. 5, FIG. 7 is a perspective view of a fixture showing a fifth embodiment of the present invention, FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7, and FIG. FIG. 11 to FIG. 11 are configuration diagrams showing a conventional printed board mounting device. In the figure, 1 is a mounting board, 2 is a printed board, 20,30,40,50,60 are fixtures, 21,31,41,53,63 are base parts, 22,32,42,54,64 are Clamping pieces, 23, 33, 43, 52, 62 are printed board insertion gaps, 24, 34, 44
Are tap holes, 26, 56, 66 are screws, and 55, 65 are embedded nuts.

Claims (1)

[Scope of utility model registration request] 1. A base portion (2) set on a mounting substrate (1).
1,31,41,53,63) and a sandwiching piece (parallel) provided on the side opposite to the setting surface of this base via a printed board insertion gap (23,33,43,52,62). (22,32,43,54,64) and a screwing part (24,34,44,55,65) formed on the sandwiching piece (2,32,43,54,64)
0, 30, 40, 50, 60) and the base plate portion of the fixture and the printed board (2) inserted into the gap from the side of the attachment substrate (1) to penetrate the sandwiching piece. A screw member (26,56,66) screwed into the screwing portion, and the sandwiching piece (22,32,42,54,64) is provided in the gap (23,33,43,5).
A printed board (2) inserted into the printed board (2, 62), the size of which holds one end of the printed board (2) in a narrow pressure by a screw member, and the screwing portion is provided at substantially the center. Mounting device.