JPH088559A - Electronic device mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an electronic device in which the installation space of the rack can be narrowed, regarding the mounting structure of the electronic device in which the electronic units are mounted in multiple stages on the rack. [Structure] A fixing member 4 attached to an upper plate or a lower plate of the shelf 2 so as to be parallel to the left and right side edges of the shelf 2, and pivotally supported by the fixing member 4 so as to be rotatable and slidable in the front-back direction. The rod-shaped fastening member 20, the U-shaped hook portion 21 formed at one end of the fastening member 20, and the rear side of the rack so that the tip of the hook portion 21 is fitted from the back side of the rack 10 are arranged. Rear plate member 11
The hole 19 provided at a predetermined position and the fixing means for fixing the other end 25 of the fastener 20 to the front part of the shelf 2 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for electronic equipment in which electronic units are mounted in multiple stages on a rack.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view of an electronic device. In the figure, reference numeral 10 denotes a rack in which gantry members are fixed on both left and right sides so as to face each other, and each gantry member includes a rear surface plate member 11 and a front plate member 12.

Reference numeral 1 denotes an electronic unit in which a printed wiring board 3 is inserted and accommodated in parallel in a box-shaped shelf 2 having an open front surface. The electronic units 1 are configured so as to be stacked and mounted on the rack 10 in multiple stages.

More specifically, a prism-shaped fixing member 4 having an upper / lower two-stage structure having a length slightly smaller than the depth of the shelf 2 is provided along the left and right side edges of the shelf 2. The upper prismatic member of the fixing member 4 has a width smaller than that of the lower prismatic member, and the rectangular parallelepiped recesses 16 (shown by dotted lines in the figure) provided on both sides of the lower portion of the electronic unit 1 mounted on the upper stage are fitted therein. Yes, it is a guide.

A screw hole 7 into which a screw 9 is screwed is provided on the front end surface of the upper prismatic member of the fixing member 4. The step surface formed on the upper side of the lower prismatic member of the fixing member 4 serves as a seat for the lower end surface of the recess 16 of the electronic unit 1 installed in the upper stage.

A screw 5 is fixed to the fixing member 4 so as to project rearward from the rear end surface of the fixing member 4. The handles 8 are attached to the left and right sides of the shelf 2 so that the electronic unit 1 can be easily inserted into and removed from the rack 10.

The electronic unit 1 configured as described above is mounted on the rack 10.
In order to mount the electronic unit 1 on the lower stage, the recess 16 is inserted into the upper prismatic member of the fixing member 4 of the electronic unit 1 mounted on the lower stage, the electronic unit 1 is pushed into the rack 10, and the screw 5 is provided in the rear plate member 11. The electronic unit 1 is fixed to the rack 10 by fitting it into the rack 19 and screwing the nut 15 onto the screw 5 from the rear of the rack 10.

Further, the screw 9 is inserted into the screw hole provided in the lower portion of the upper electronic unit 1, and the tip of the screw 9 is screwed into the screw hole 7 of the fixing member 4 of the lower electronic unit 1 so that the upper and lower portions are screwed. The electronic unit 1 is fixed so as not to shift.

The electronic unit 1 mounted at the bottom
Needless to say, it is placed on the base of the rack 10.

[0010]

By the way, as described above, the conventional electronic equipment has a structure in which the electronic unit is fixed to the rack in front of and behind the rack.

Therefore, it is necessary to work on the back side of the rack, and for this reason, a mounting / maintenance work area is provided on the back side of the electronic equipment. That is, the conventional electronic device has a problem that the rack installation space is large.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a mounting structure of an electronic device which can reduce the installation space of a rack.

[0013]

In order to achieve the above-mentioned object, the present invention has an electronic unit 1 constructed by housing components in a shelf 2 and a multi-stage electronic unit 1 as shown in FIG. In a mounting structure of an electronic device including the rack 10 mounted on the shelf 2, the fixing member 4 attached to the upper plate or the lower plate of the shelf 2 so as to be parallel to the left and right side edges of the shelf 2.
A rod-shaped fastening member 20 pivotally supported by the fixing member 4 so as to be rotatable and slidable in the front-back direction, a U-shaped hook portion 21 formed at one end of the fastening member 20, and a rack 10. From the back side to the hook
A hole 19 provided at a predetermined position of a rear face plate member 11 arranged on the left and right on the rear surface side of the rack 10 so that the tip of 21 is fitted, and a fastener 20.
Fixing means for fixing the other end 25 of the above to the front part of the shelf 2,
Prepared for configuration.

Further, the fixing means is a threaded portion formed on the other end 25 of the fastening member 20, and the seating surface is fixed by screwing the threaded portion to the threaded portion.
And a nut 26 that is pressed against the front end face of the.

Alternatively, as shown in FIG. 3, the fixing means can be rocked in a plane including the axis of the fastener 20.
From the connecting portion 31 to be attached to the other end 25 of the 20 and the fixing seat 35 provided at one end of the handle portion 32 in which one end of the connecting portion 31 is extended so as to be fixed to the front surface portion of the shelf 2 using the bolt 36. It is assumed that the fixing bracket 30 is

Alternatively, as shown in FIG. 5, the fixing means includes an eccentric cam plate 41 which presses against the front end surface of the fixing member 4, and
A fastener 42 including a lever 42 for rotating the eccentric cam plate 41
It is assumed that the cam fitting 40 is attached to the other end 25 of the 20.

[0017]

According to the present invention, after the electronic unit is pushed into the rack, the fastener is pivoted on the front surface of the rack and pulled in the front direction, so that the tip of the hook portion provided at one end of the fastener moves backward. Fit into the hole of the face plate member.

Then, by operating the fixing means on the front surface of the rack to fix the other end of the fastener to the front portion of the shelf, the fastener is further pulled toward the front side, and the hook portion of the fastener is attached to the rear plate member. Engage with.

Therefore, the electronic unit is fixed to the rack via the fastener. As described above, any of the work of pushing the electronic unit into the rack, the work of fitting the hook portion of the fastener into the hole of the rear plate member, and the work of operating the fixing means can be performed on the front side of the rack.

Therefore, it is not necessary to provide a mounting / maintenance work area on the back surface side of the electronic device, so that the installation space of the rack can be narrowed.

[0021]

The present invention will be described in detail with reference to the drawings. The same reference numerals indicate the same objects throughout the drawings.

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view of an embodiment of the present invention, and FIG. 3 is a perspective view of another embodiment of the present invention. 4A and 4B are views of still another embodiment of the present invention, in which FIG. 4A is a side view before fixation and FIG. 4B is a side view after fixation.

In FIGS. 1 and 2, a rack 10 is formed by fixing rack members on both left and right sides so as to face each other, and each rack member has a rear plate member 11 and a front plate member 12. The electronic unit 1 to be mounted in multiple stages on the rack 10 is one in which a printed wiring board 3 is inserted and accommodated in parallel in a box-shaped shelf 2 having an open front surface.

The electronic unit 1 is provided with a prism-shaped fixing member 4 having an upper and lower two-tiered structure having a length slightly smaller than the depth of the shelf 2 along the left and right side edges of the upper plate of the shelf 2. It is provided. The upper prismatic member of the fixing member 4 has a width smaller than that of the lower prismatic member, and is a rectangular parallelepiped concave portion 16 provided on both sides of the lower portion of the electronic unit 1 mounted on the upper stage.
It serves as a guide to which (indicated by the dotted line in the figure) fits.

A screw hole 7 into which a screw 9 is screwed is provided on the front end surface of the upper prismatic member of the fixing member 4. The step surface formed on the upper side of the lower prismatic member of the fixing member 4 serves as a seat for the lower end surface of the recess 16 of the electronic unit 1 installed in the upper stage.

Reference numeral 20 is a rod-shaped fastening member whose length is substantially equal to the front-rear length of the shelf 2. A hook 21 is provided by bending one end of the fastener 20 into a U-shape so that the bent tip faces the front side of the rack 10. Further, a screw thread is threaded on the outer periphery of the other end 25 of the fastening member 20 so that the nut 26 is screwed.

The above-mentioned fastening member 20 penetrates the hollow portion of the lower prismatic member of the fixing member 4 in the longitudinal direction, and is pivotally supported by the fixing member 4 so as to be rotatable and slidable in the front-back direction. On the other hand, a hole 19 is provided at a predetermined position of the rear plate member 11 so that the tip of the hook portion 21 can be fitted from the back side of the rack 10.

In order to mount the electronic unit 1 fitted with the above-described fastener 20 on the rack 10, first, the fastener 20 is rotated so that the hook portion 21 is located inside. Then, the concave portion 16 of the electronic unit 1 to be mounted is inserted into the upper prismatic member of the fixing member 4 of the lower electronic unit 1 already mounted on the rack 10, and the electronic unit 1 is pushed into the rack 10.

As a result, the back surfaces of the left and right ends of the electronic unit 1 come into contact with the rear surface plate member 11 in a state in which the hook portion 21 of the fastening member 20 projects rearward of the rear surface plate member 11. Next, the other end 25 of the fastener 20 is gripped, and the fastener 20 is rotated in the direction in which the hook portion 21 is located on the rear surface side of the rear surface plate member 11 as shown by the dotted line in FIG.

Then, the fastener 20 is pulled to the front side, and the tip of the hook portion 21 is fitted into the hole 19 from the back side of the rack 10 and engaged. Next, the nut 26 is screwed and tightened on the threaded portion provided on the other end 25 of the fastener 20, and the seating surface of the nut 26 is fixed to the fixing member 4.
Of the fastener 20 is fixed to the front of the shelf 2.

As a result, the electronic unit 1 is fixed to the rack 10 via the fastener 20. Further, the screw 9 is inserted into the screw hole provided in the lower portion of the upper electronic unit 1, and the tip of the screw 9 is screwed into the screw hole 7 provided in the other end of the upper prismatic member of the fixing member 4 of the lower electronic unit 1. Then, the upper and lower electronic units 1 are fixed so as not to shift.

The mounting structure of the electronic device constructed as described above is such that the electronic unit 1 is mounted, that is, the electronic unit 1 is pushed into the rack 10, and the hook portion 21 of the fastener 20 is attached to the rear plate member 11. Work to make holes 19 and mount the electronic unit 1
Any of the work of fixing to the rack 10 can be performed on the front side of the rack 10.

Also, when performing maintenance of the electronic unit,
The work of removing the electronic unit 1 from the rack 10 can also be performed on the front side of the rack 10. That is, it is attached to the back side of electronic equipment.
Since it is not necessary to provide a maintenance work area, it is possible to reduce the installation space of the rack.

The fixing member 4 of the embodiment uses a prismatic guide body on which electronic units are mounted in multiple stages. However, without using this guide body, it is parallel to the inside of each guide body. Even if two fastening members in the form of bearings are provided in front and rear to pivotally support the fastener, the same effect can be obtained.

When the fixing member having such a bearing shape is used, it may be provided on the lower plate of the shelf. Figures 3 and 4
Shows other fixing means.

In FIGS. 3 and 4, reference numeral 30 is a connecting portion 31, a fixed seat 35, and a handle portion for integrally fixedly connecting the connecting portion 31 and the fixed seat 35.
It is a fixing bracket that becomes 32. The connecting portion 31 is attached to the other end 25 of the fastener 20 so that the connecting portion 31 can swing about the pin 29 as an axis in a plane including the axis of the fastener 20.

The fixing seat 35 is formed in a square plate shape at one end of the handle portion 32 formed by extending one end of the connecting portion 31, and has a hole for inserting the neck portion of the bolt 36 in the central portion, It is adapted to be fixed to the front surface of the shelf 2 by using a bolt 36.

The handle 32 may have a flat plate shape,
By forming the dogleg shape as shown in FIG. 4, engagement between the hook portion 21 and the hole 19 of the rear surface plate member 11 is ensured. Fixing bracket 30
For example, in order to mount the lowermost electronic unit 1 on the rack 10, the electronic unit 1 is mounted on the base of the rack 10 as shown in FIG. , Push the electronic unit 1 into the rack 10.

With the hooks 21 of the fasteners 20 protruding rearward of the rear plate member 11, the back surfaces of the left and right ends of the electronic unit 1 contact the rear plate member 11. Next, by gripping the fixing seat 35, in the direction in which the hook portion 21 is located on the rear surface side of the rear plate member 11,
Rotate the fastener 20.

Then, the fastener 20 is pulled to the front side, and the tip of the hook portion 21 is fitted into the hole 19 from the back side of the rack 10 and engaged. At this time, as shown in FIG.
Is located on the front side of the shelf 2, and the bent portion of the handle 32 is
It is almost in contact with the front surface of the shelf 2 (the surface of the fixing plate member of the handle 8 as shown in FIG. 3).

Next, as shown in FIG. 4B, the fixing seat
The bolt 36 is inserted into the hole 35 and screwed into the screw hole of the fixing plate member of the handle 8 to bring the back surface of the fixing seat 35 into close contact with the front surface portion of the shelf 2 to fix the fixing bracket 30 to the shelf 2.

By doing so, the handle portion 32 acts as a lever, and the fastener 20 is pulled out to the front side of the rack 10.
Therefore, the hook portion 21 surely engages with the hole 19 of the rear surface plate member 11,
Even if the electronic device vibrates due to an earthquake or the like, the electronic unit 1 does not move to the front side of the rack 10.

In FIG. 5, reference numeral 40 denotes an eccentric cam plate 41 that is in pressure contact with the front end surface of the fixing member 4, a lever 42 that rotates the eccentric cam plate 41, and a cam fitting. The cam fitting 40 is the fastening fitting 20.
The other end 25 can be rotatably attached to the fastener 20 about a pin 29 that vertically penetrates the other end 25.

Push the electronic unit 1 into the rack 10 and use the lever
42 is tilted sideways in a plane parallel to the front surface of the shelf 2, and the fastener 20 is rotated so that the tip of the hook 21 fits into the hole 19 of the rear plate member 11.

At this time, the end surface of the eccentric cam plate 41 at the minimum eccentricity position is in contact with the front end surface of the fixing member 4. Next, the lever 42 is rotated toward the front plate member 12 side to press the end face of the eccentric cam plate 41 at the position where the eccentric amount is large against the front end face of the fixing member 4.

By doing so, the hook portion 21 surely engages with the hole 19 of the rear surface plate member 11, and even if the electronic device vibrates due to an earthquake or the like, the electronic unit 1 is in front of the rack 10. Do not move to the side.

The fastening metal fitting 20 having the fixing metal fitting 30 as shown in FIG. 3 and the fastening metal fitting 20 having the cam fitting 40 as shown in FIG. After the fastener 20 is inserted into one half of the lower prismatic member, the other half of the lower prismatic member is welded to one half of the lower prismatic member so that the fixing member 4 is rotated and moved back and forth. It can be mounted so that it can slide freely in any direction.

[0048]

As described above, the electronic device mounting structure according to the present invention has the work of pushing the electronic unit into the rack, the work of fitting the hook portion of the fastener into the hole of the rear face plate member, and the operation of the fixing means. All of the work can be done on the front side of the rack, and there is no need to provide a mounting / maintenance work area on the back side of the electronic equipment.

Therefore, there is an effect that the installation space of the rack is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view of an embodiment of the present invention.

FIG. 3 is a perspective view of another embodiment of the present invention.

FIG. 4 is a view showing a fixing procedure of another embodiment of the present invention,
(A) is a side view before fixation and (B) is a side view after fixation.

FIG. 5 is a diagram of an embodiment of the invention of claim 4;

FIG. 6 is a perspective view of an electronic device.

[Explanation of symbols]

 1 electronic unit 2 shelf 3 printed wiring board 4 fixing member 10 frame 11 rear plate member 12 front plate member 19 hole 20 fastening metal fitting 21 hook 25 other end 26 nut 30 fixing metal fitting 31 connecting portion 35 fixing seat 36 bolt 40 cam fitting 41 Eccentric cam plate 42 lever

Claims (4)

[Claims] 1. An electronic unit configured by housing components in a shelf, and a rack on which the electronic units are mounted in multiple stages,
In the mounting structure of the electronic device, the fixing member is attached to the upper plate or the lower plate of the shelf so as to be parallel to the left and right side edges of the shelf, and the fixing member is rotatably and slidably movable in the front-rear direction. A rod-shaped fastening fitting pivotally supported by a member, a U-shaped hook portion formed at one end of the fastening fitting, and a back surface of the rack so that the tip of the hook portion is fitted from the back side of the rack. An electronic device comprising: holes provided at predetermined positions of the rear surface plate member arranged on the left and right sides; and a fixing means for fixing the other end of the fastener to the front part of the shelf. Mounting structure. 2. The fixing means according to claim 1, comprising a threaded portion formed at the other end of the fastener, and a nut screwed to the threaded portion and having a seat surface pressed against the front end surface of the fixing member. An electronic device mounting structure characterized in that 3. The fixing means according to claim 1, wherein the connecting means is attached to the other end of the fastener so as to be swingable in a plane including the shaft of the fastener, and is attached to the front surface of the shelf by using a bolt. An attachment structure for an electronic device, comprising: a fixing seat provided at one end of a handle portion formed by extending one end of the connecting portion so as to be fixed. 4. A cam attached to the other end of a fastener, wherein the fixing means comprises an eccentric cam plate that is in pressure contact with the front end surface of the fixing member, and a lever that rotates the eccentric cam plate. A mounting structure for electronic devices, characterized by being metal fittings.