JP2876794B2 - Guide rail mounting device for printed circuit board insertion - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a printed circuit board insertion guide rail applied to a printed circuit board storage device in various electronic devices.

[0002]

2. Description of the Related Art Conventionally, various types of electronic equipment have been used in FIG.
A storage device for a printed circuit board as shown in FIG. In this method, a plurality of pairs of guide rails 2 are mounted on opposing surfaces of a pair of left and right guide rail mounting plates 1, and a plurality of printed circuit boards called card boards are provided in guide grooves 3 formed on the opposing surfaces of these guide rails. In this embodiment, a plurality of printed circuit boards 4 are stored in a plurality of stages horizontally or vertically by inserting both end edges 4a of the printed circuit board 4.

Conventionally, a printed circuit board insertion guide rail mounting device as shown in FIG. 15 has been applied to this type of printed circuit board storage device (see, for example, Japanese Utility Model Publication No. Sho 62-33359).

In this method, a guide groove 3 for inserting a printed circuit board is formed on one of the left and right opposing surfaces of a guide rail 2 formed of a synthetic resin, and a plurality of thinner walls are formed on the other side. The dowel 5 is integrally formed, and the dowel 5 is press-fitted into a plurality of dowel holes 6 of the guide rail mounting plate 1 formed by pressing a sheet metal, and the guide rail 2 is mounted on the guide rail mounting plate 1. is there.

[0005]

However, the conventional guide rail mounting device for inserting a printed circuit board requires a strong force to press-fit the dowel 5 into the dowel hole 6, and the guide rail 2 cannot be easily mounted. Absent. Further, the operation of removing the dowel 5 from the dowel hole 6 is troublesome, and the removal of the guide rail 2 is not easy. In addition, when the dowel 5 is press-fitted into the dowel hole 6, the dowel 5 is surely shaved. Therefore, if the guide rail 2 is removed once, the guide rail 2 may rattle when the guide rail 2 is attached again. Since the guide rails 2 fall off, there is a problem that the guide rails 2 cannot be used repeatedly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has an object to provide a printed circuit board insertion guide rail in which the guide rail can be easily mounted and removed, and the guide rail can be used repeatedly. It is intended to provide a device.

[0007]

According to the present invention, there is provided an apparatus for mounting a guide rail for inserting a printed circuit board, comprising: a guide rail mounting plate;
Guide rails that are detachably attached to the
Guide groove for printed circuit board insertion on one side
Formed with large head and narrow neck on the other side
And a claw on the tip of the elastic arm
Is formed on the guide rail mounting plate.
Are large holes and small holes into which the head and neck of the fixed part are inserted.
A first mounting hole formed in a convex shape by the width hole;
Printed with a second mounting hole into which the claw part is inserted
In the mounting device of the guide rail for board insertion,
The head at the fixed part of the tool is spread like a blade on both sides of the neck
It is formed on a protruding elastic wing-shaped head,
At both ends of the wing-shaped head projecting to both sides from
A pair of ribs are formed on the surface facing the other side of the idrail.
And a slope on one end side in the length direction of the pair of ribs.
It was formed.

[0008]

According to the present invention, there is provided a guide rail mounting device for inserting a printed circuit board into a guide rail from one side of a guide rail mounting plate.
The substantially T-shaped fixing portion of the rail is connected to the substantially convex first mounting hole.
Insert the wing-shaped head into the guide rail mounting plate
After protruding outside the other side of the
Slide in the direction substantially parallel to the ribs to
Part is fitted into the narrow hole of the first mounting hole, and
Is inserted into the second mounting hole by the elasticity of the elastic arm
Guide rail can be removed from the guide rail mounting plate
Attached to. At that time, slide the guide rail
Therefore, a pair of ribs at both ends of the wing-shaped head
Guided on a slope on the other side of the guide rail mounting plate
Riding up against the elasticity of the wing-shaped head, the wings
A pair of ribs and guide rails
Guide rail mounting plate elastically from both sides
Can be included.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a guide rail mounting apparatus for a printed circuit board according to the present invention; FIG. 14 and 15 are denoted by the same reference numerals, and redundant description will be omitted.

First, as shown in FIGS. 9 to 11, a guide rail mounting plate 1 pressed by sheet metal has
The first mounting holes 8 extend in the length direction of the guide rail 2 (FIG. 9).
(Up and down direction of the first mounting hole), and one second mounting hole 11 is formed beside the first mounting hole 8 at the center. The first mounting hole 8 is formed in a substantially convex shape by connecting a large hole 9 having a large width A and a small width hole 10 having a small width B. Further, the second mounting hole 11 is formed as a hole having a small width C.

The guide rail 2 has a guide rail body 7 formed of synthetic resin, and a guide groove 3 for inserting a printed circuit board 4 in the longitudinal direction on one side surface 7a of the guide rail body 7 which is the left and right facing surfaces. It is molded along. On the other side surface 7b of the guide rail body 7, three fixing portions 13 and one locking portion 19 correspond to the first mounting hole 8 and the second mounting hole 11 along the longitudinal direction, respectively. It is molded integrally at intervals.

The fixing portion 13 is formed in a substantially T-shape by a neck portion 14 having a width D substantially equal to the width B of the small hole 10 and a head portion 15 having a width E smaller than the width A of the large hole 9. . As shown in FIGS. 1, 3 and 5, the head 15 of the fixing portion 13 is formed in a blade shape having elasticity extending in the width direction of the guide rail body 7 (the left-right direction in FIG. 3). . A pair of parallel ribs 16 are integrally formed at both ends in the width direction of a side surface 15a of the head 15 facing the other side surface 7b of the guide rail body 7. A slope 17 is formed on one end side of the pair of ribs 16 in the length direction.

The locking portion 19 includes an elastic arm portion 20 having a base portion 20a integrally formed with the guide rail body 7,
Claw portion 2 integrally formed at the tip of the elastic arm portion 20
1 form a substantially L-shape. This claw part 2
The width F and the length G of the first mounting hole 11 are smaller than the width C and the length H of the second mounting hole 11. The outer periphery of the locking portion 19 is opened to both side surfaces 7a and 7b of the guide rail main body 7 by a substantially U-shaped opening 22.

Next, the operation of attaching the guide rail 2 to the guide rail attachment plate 1 will be described with reference to FIGS. First, as a first step, as shown in FIGS. 1 and 3 to 5, the fixing portion 13 of the guide rail 2 is inserted into the large hole 9 of the first mounting hole 8 from one side surface 1 a of the guide rail mounting plate 1. The head 1 of the fixing part 13 is inserted from the direction of the arrow a.
5 is projected outside the other side surface 1 b of the guide rail mounting plate 1. At this time, 3 shown in FIG. 9 and FIG.
The fixing portions 13 are simultaneously inserted into the three first mounting holes 8, and the other side surface 7 b of the guide rail main body 7 abuts on the one side surface 1 a of the guide rail mounting plate 1 in parallel. Then, the claw portion 21 of the locking portion 19 comes into contact with the side surface 1a of the guide rail mounting plate 1 from the direction of arrow a, and the elastic arm portion 20
Escapes in the direction of arrow b against the elasticity.

Next, as a second step, FIGS.
As shown in FIG. 8, the guide rail 2 is slid in the direction of the arrow c along the longitudinal direction, and the neck 14 of the fixing portion 13 is fitted into the narrow hole 10 of the first mounting hole 8 from the direction of the arrow c.

Then, a pair of ribs 16 of the wing-shaped head 15 of the fixed portion 13 are guided by these slopes 17 and ride on the other side surface 1b of the guide rail mounting plate 1.
The wing-shaped head 15 bends in the direction of arrow d against the elasticity, and a pair of ribs 1 is formed by the elastic repulsive force of the wing-shaped head 15.
Guide rail mounting plate 1 between guide rail 6 and guide rail body 7
Elastically. Therefore, the guide rail mounting plate 1
When the installation of the guide rail 2 is completed,
The guide rail 2 is formed by the elastic repulsive force of the wing-shaped head 15.
Is pressed onto one side surface 1a of the guide rail mounting plate 1.
Now and this is fixed Te, guide rail due to external vibration, etc.
To prevent rattling or chattering of the
Can be.

On the other hand, at the moment when the guide rail 2 slides in the direction of arrow c and the claw portion 21 of the locking portion 19 moves onto the second mounting hole 11, the elastic arm portion 20 elastically returns in the direction of arrow e. Then, the claw portion 21 is automatically locked in the second mounting hole 11.

Then, the pawl portion 21 locks the guide rail 2 so that the guide rail 2 cannot slide in the direction of the arrow f, and the guide rail 2 is fixed to the guide rail mounting plate 1 so that the guide rail 2 can be mounted. Complete.

Next, when removing the guide rail 2 from the guide rail mounting plate 1, a tool such as a flathead screwdriver is inserted into the opening 22 of the guide rail main body 7, and as shown by a dashed line in FIG. The claw 21 is disengaged from the second mounting hole 11 by prying the claw 21 in the direction of the arrow b against the elasticity of the elastic arm 20. Thereafter, the guide rail 2 is moved to the arrow f.
Then, the fixing portion 13 may be pulled out in the direction of arrow h from the first mounting hole 8 by sliding in the direction of arrow g.

As described above, according to this mounting device for a printed board insertion guide rail, when the guide rail 2 is mounted, the fixing portion 13 of the guide rail 2 is inserted into the first mounting hole 8 of the guide rail mounting plate 1. It is only necessary to insert and slide the guide rail 2 in the longitudinal direction. When the guide rail 2 is to be removed, the claw 21 is
After removing from the second mounting hole 11 against the elasticity of 0, the guide rail 2 may be slid in the opposite direction to the above-described sliding direction to remove the fixing portion 13 from the first mounting hole 8. Therefore, the guide rail 2 can be easily attached to and detached from the guide rail attachment plate 1.

The engagement structure of the fixing portion 13 and the locking portion 19 with the first mounting hole 8 and the second mounting hole 11 is not a press-fitting structure like a dowel and a dowel hole. Even if the attachment and detachment of the guide rail 2 with respect to 1 are repeatedly performed, the fixing portion 13 and the locking portion 19 are less likely to be scraped. Therefore, the guide rail 2 can be repeatedly attached to and detached from the guide rail mounting plate 1 and used.

Next, FIGS. 12 and 13 show a modified example, and FIG.
FIG. 13 shows the tapered surface 10a on both sides of the narrow hole 10 and the neck 14 is fitted by the tapered surfaces 14a, 10a when the neck 14 is fitted into the small hole 10 in the direction of arrow c. And the narrow hole 10 are lightly pressed against each other,
The rattling of the guide rail 2 in the directions of arrows c and f is eliminated.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made based on the technical concept of the present invention.

[0024]

The apparatus for mounting a guide rail for inserting a printed circuit board according to the present invention is constructed as described above, and has the following effects.

When the guide rail is mounted, the fixed portion of the guide rail is connected to the substantially convex first rail of the guide rail mounting plate.
Guide rail with a pair of ribs
When removing the guide rail, remove the claw from the second mounting hole against the elasticity of the elastic arm and then slide the guide rail in the direction opposite to the sliding direction. Since it is sufficient to slide the fixing portion out of the first mounting hole, the guide rail can be easily attached to and detached from the guide rail mounting plate.

The engaging structure of the fixing portion and the engaging portion with respect to the first mounting hole and the second mounting hole is not a press-fitting structure like a dowel and a dowel hole, so that the guide rail is mounted on the guide rail mounting plate. Even if repetition and removal are performed, the fixed portion and the locking portion are less likely to be scraped. Therefore, the guide rail can be repeatedly attached to and detached from the guide rail mounting plate for use.

Moreover, when mounting the guide rail,
The slide of the guide rail allows the neck of the
Insert the claw into the substantially convex first mounting hole of the guide rail mounting plate.
At the time of fitting and insertion into the narrow hole and the second mounting hole,
Guide the pair of ribs on the root-like head on these slopes
On its other side of the rail mounting plate, its wing-shaped bullet
Riding against the nature, the elastic repulsion of the wing-shaped head
Guide rail between the pair of ribs and the guide rail.
The mounting plate from both sides, and the elasticity of the wing-shaped head
The guide rail is moved to the guide rail mounting plate by the repulsive force.
Can be fixed by crimping on the side
Guide rail rattling or chattering due to vibration, etc.
Life can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a first step of a mounting operation of a main part of a mounting device for a printed board insertion guide rail according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a second step of the above.

FIG. 3 is a sectional view taken along the line AA of FIG. 1;

FIG. 4 is a cross-sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along the line CC in FIG. 1;

FIG. 6 is a sectional view taken along the line DD in FIG. 2;

FIG. 7 is a sectional view taken along the line EE in FIG. 2;

FIG. 8 is a sectional view taken along the line FF in FIG. 2;

FIG. 9 is a side view showing the entire mounting device of the printed circuit board insertion guide rail of the present invention.

FIG. 10 is a sectional view taken along the line GG of FIG. 9;

FIG. 11 is a sectional view taken along the line HH of FIG. 9;

FIG. 12 is a sectional view showing a modification of the present invention.

FIG. 13 is a sectional view showing another modification of the present invention.

FIG. 14 is a front view showing a conventional printed circuit board storage device.

FIG. 15 is a cross-sectional view illustrating a main part of a conventional mounting device for a printed circuit board insertion guide rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rail mounting plate 1a One side of guide rail mounting plate 1b The other side of guide rail mounting plate 2 Guide rail 3 Guide groove 4 Printed circuit board 7 Side of guide rail main body 8 First mounting hole 9 Large hole 10 Small hole DESCRIPTION OF SYMBOLS 11 2nd mounting hole 13 Fixing part 14 Neck 15 Head 19 Locking part 20 Elastic arm part 21 Claw part

Claims (1)

(57) [Claims] 1. A guide rail mounting plate and its guide rail
Equipped with a guide rail detachably attached to the mounting plate
For example, for printed circuit boards inserted into one side in the guide rail
Guide grooves formed, large head and small on the other side
The fixed part formed by the neck of width and the tip of the elastic arm
An engaging portion having a claw portion formed at an end is formed, and a head and a neck of the fixing portion are provided on the guide rail mounting plate.
Almost convex shape due to large hole and narrow hole where the part is inserted
The formed first mounting hole and the claw portion of the locking portion are inserted.
Printed circuit board insertion guide having a second mounting hole formed therein
In the mounting device for a rail, the head of the fixed portion of the guide rail is located on both sides of the neck.
Resilient wing-like head with lateral wing-like overhang
Of the wing-shaped head protruding on both sides from the neck
At both ends, surfaces facing the other side of the guide rail
A pair of ribs are formed, and a slope is formed at one end side in the length direction of the pair of ribs.
A mounting device for a guide rail for inserting a printed circuit board.