JPH0730262A - Electronic device housing - Google Patents

Abstract

(57) [Abstract] [Purpose] With regard to electronic equipment housings, the purpose is to prevent opening and closing of the doors due to earthquakes, etc., and to prevent the doors, covers, etc. from falling off the rack body. [Structure] In an electronic device in which a door or a cover is attached to each of four sides of a frame body 10 having a skeletal structure,
A shallow box-shaped door 20 that is slidably mounted on at least one of the front surface and the rear surface of 10, and a door that faces the sliding means.
Upper and lower lock bars 62-1,62- mounted on the back side of the side edge of 20
A lock / unlock mechanism consisting of 2 and an engaging hole 73 of the upper swinging means 40 at one end and an engaging hole 74 of the lock / unlock mechanism at the other end are rotatably mounted on the rack body 10. The length of the upper bracket that is attached to the upper part of the door is almost equal to the width of the door 20.
And a protrusion 77 of the lower swinging means 50 at one end and an engagement hole 76 of a lock / unlock mechanism at the other end, which is rotatably attached to the lower portion of the rack main body 10. The lower receiving metal fitting 72 having the same length as the upper receiving metal fitting 71 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic equipment casing, and more particularly to a mounting structure for doors and covers.

[0002]

2. Description of the Related Art A general large-scale electronic device has a structure in which a plurality of units divided by function are mounted on a frame body having a skeletal structure.

For improving the appearance, preventing dust from entering, and preventing electromagnetic waves, the four sides of the rack body are closed by doors or covers. FIG. 6 is a perspective view of a conventional electronic device housing, FIGS. 7A and 7B are perspective views of essential parts of a door, and FIG. 8 is a view showing a conventional cover mounting structure.

In the figure, 10 is a frame main body having a skeletal structure consisting of four frame columns and an upper frame and a lower frame for fixing the upper and lower sides of the frame columns, and 20 is attached to the front side or the back side of the frame body 10. The door to
Reference numeral 30 is a cover attached to the other three surfaces of the rack body 10.

The door 20 is a shallow box-like shape composed of a desired large rectangular main plate 21 that covers the front side of the rack body 10 and a thin plate thickness, and an edge frame 22 in which four side edges of the main plate 21 are bent inward. . Such a door 20 may be attached to the rack body via a hinge so that the door can be slidably moved.However, when the rack body has a large and heavy skeletal structure, the door is removed from the rack body 10 during transportation. It is required that 20 can be easily removed.

Therefore, the door 20 is slidably mounted on the rack body 10 by the upper swinging means 40 provided on the upper portion of the door 20 and the lower swinging means 50 provided on the lower portion of the door 20 as shown in FIG. In addition, the door 20 can be detachably attached to the rack body 10.

The upper swinging means 40 includes a shaft 45 mounted on a selected upper corner portion of the door 20 so as to be slidable in the vertical direction, and a rack body 10.
The tip part 45 of the shaft 45 provided on the lower surface of the corner of the upper frame front member of
and an engaging hole 46 into which a is inserted.

More specifically, the edge frame 22 at the selected upper corner of the door 20
The receiving plate 41 is attached to the upper surface of the, and a hole (not shown) is formed in the receiving plate 41 and the upper edge plate of the edge frame 22 for the straight portion of the shaft 45 whose lower portion is bent into an L shape to pass through. A spring seat 42 is provided inside the upper corner of the 20, and the spring seat 42 is also provided with a hole through which the shaft 45 is inserted from below.

A compression coil spring 43 having a shaft 45 penetrating the center line of the coil is interposed between the spring seat 42 and the upper edge plate of the edge frame 22. A C-shaped retaining ring, which serves as a seat for the upper end of the compression coil spring 43, is attached to the shaft 45.
Therefore, the shaft 45 is constantly urged upward by the elastic force of the compression coil spring 43.

The lower swinging means 50 provided at the lower portion of the door 20 includes a protrusion 51 provided on the lower frame front member 12 and an engagement hole provided on the door 20 side.
It consists of 52 and. More specifically, the upper frame front member
A projection 51 with a receiving seat is provided on the upper surface of the lower frame front member 12 so as to face the engagement hole 46 provided in the projection 11 and project straight upward.

On the other hand, the lower edge plate of the edge frame 22 of the door 20 is provided with an engagement hole 52 into which the protrusion 51 is fitted so as to coincide with the axis of the shaft 45. Since the sliding means is as described above, the lower portion of the door 20 is aligned with the rack body 10, the projection 51 is fitted into the engagement hole 52, and then the upper portion of the door 20 is pulled downward while the shaft 45 is pulled downward. The lower frame front member 11 of the upper frame is inserted and aligned. Next axis
When the hand pulling 45 is released, the tip of the shaft 45 is inserted into the engaging hole 46 of the upper frame front member 11. Therefore the door
20 is mounted on the rack body 10 so as to be freely slidable.

The lock / unlock mechanism of the door will be described below with reference to FIG. A shaft is rotatably mounted so as to pass through the main plate 21 at a position approximately midway of the height of the door 20 in the vicinity of the side edge of the door 20 facing the sliding means, and a lever 60 is attached to the end portion on the surface side of the shaft. Is stuck.

Reference numeral 61 is an elliptical plate-shaped connecting plate whose center is fixed to the inner end of the shaft, and 62-1 is slidable in the vertical direction so that the upper tip passes through the hole of the upper edge plate of the edge frame 22. An upper lock bar mounted right above the connecting plate 61 inside the door 20 as possible, and 62-2 slidably movable in the vertical direction so that the lower tip penetrates the hole of the lower edge plate of the edge frame 22. It is a lower lock bar that is mounted on the inner side of and just below the connecting plate 61.

The lower end of the upper lock rod 62-1 is connected to one end of the connecting plate 61 so as to be freely linkable, and the lower lock rod 62-2 is also connected.
The upper end of the is connected to the other end of the connecting plate 61 so as to be freely link-movable.

Therefore, by operating the lever 60, the upper lock rod 62-1 and the lower lock rod 62-2 are moved up and down,
Or, move up and down close to each other. On the other hand, with the door 20 closed, an engaging hole (not shown) into which the upper end of the upper lock rod 62-1 is inserted is provided on the lower surface of the upper frame front member of the rack body 10, and the lower lock rod 62-2. Engagement hole (not shown) into which the lower tip of
Is provided on the upper surface of the lower frame front member.

Since the lock / unlock mechanism is constructed as described above, when the door 20 is closed and the lever 60 is operated, the upper tip of the upper lock rod 62-1 is brought into the engagement hole of the upper frame front member, The lower tips of the lower lock rods 62-2 are fitted into the engaging holes of the lower frame front member. Therefore, the door 20 is locked.

When the lever 60 is operated in the opposite direction, the lock is released so that the door 20 can be opened. Hereinafter, a conventional cover mounting structure will be described with reference to FIG.

The cover 30 includes a main plate 31 of a desired large square shape that covers the side surface or the back surface of the rack body 10 (the side cover is shown in the figure) and an edge formed by bending the four side edges of the main plate 31 inward. It is a shallow box shape consisting of a frame 32.

On the upper frame side member 13 of the rack main body 10, an L-shaped upper support plate 16 having a length shorter than the width of the cover 30 and including a supporting side member and a mounting side member is provided. The mounting side member is fixed by welding or screwing so as to be parallel to the upper surface.

In the vicinity of the left and right ends of the support side member of the upper support plate 16, screw holes 16a into which the screws 34 are respectively screwed are provided. Further, on the lower frame side member 14 of the rack main body 10, a lower support plate 17 having an L shape in a side view, which is composed of a mounting side member and a supporting side member, and whose length is equal to the length of the upper support plate 16, is upper supported The mounting side member is fixed by welding or screwing so as to be parallel to the plate 16. It is stuck.

Pins 17a projecting right above are provided near the left and right ends of the support side member of the lower support plate 17, respectively. On the other hand, on the cover 30, the engagement plate 35 is fixed to the back surface side of the main plate 31 so as to be close to and parallel to the lower edge plate of the edge frame 32, and the lower support plate described above is attached to both left and right ends of the engagement plate 35. A pair of engaging holes 36 into which the pins 17a provided on the 17 are fitted are provided.

A pair of screw holes 37 corresponding to the screw holes 16a of the upper support plate 16 are provided at both left and right ends of the upper edge plate of the edge frame 32 of the cover 30. The cover 30 mentioned above
The engagement plate 35 is positioned on the side surface of the device 10, the engagement plate 35 is placed on the support side member of the lower support plate 17, and the pin 17a thereof is fitted into the engagement hole 36.
Next, the upper edge plate of the edge frame 32 is placed on the supporting side member of the upper support plate 16, and the screw 34 is screwed into the screw hole 16a to mount the cover 30 on the rack main body 10.
Is stuck to.

[0023]

By the way, in the case of the electronic equipment housing with the door and the cover attached, the rack body is installed on the floor using anchor bolts or the like as shown in FIG. 9 (A). When the floor shakes due to the above, the upper part of the rack body 10 sways later than the lower part, and the upper part of the rack body 10 is laterally displaced by B ₁ to form a rhombus, as shown in FIG. 9B.

As a result, a force acts on the door 20 to deform it into a rhombus whose upper portion is laterally displaced by a strain amount B ₂ proportional to the strain amount B ₁ of the rack body 10. However, since the door 20 and the cover are box-shaped, the structure is rigid and resistant to deformation due to lateral shake such as an earthquake.

Therefore, the door 20 (or cover) rack main body 10
Due to an earthquake or the like, the shaft of the sliding means of the door and the lock bar are subjected to a shearing force or a bending force and the shaft is bent or broken. Also, the lock bar is bent or broken.

As described above, the conventional electronic equipment housing has a problem in that the door cannot be opened or closed, or the door falls off from the rack body. Further, since the cover is screwed, a shearing force is applied to the screw, which may break the screw and cause the cover to fall off the rack body.

The present invention was created in view of the above points, and it is difficult to open and close the door due to an earthquake or the like.
It is an object of the present invention to provide an electronic device housing in which the cover and the like are not likely to fall off the rack body.

[0028]

In order to achieve the above object, the present invention provides an electronic device in which a door or a cover is attached to each of four surfaces of a frame main body having a skeletal structure, as illustrated in FIG. On the equipment, at the selected upper corner, the shaft 45 of the upper sliding means 40
The lower edge plate of the edge frame 22 of the lower corner facing the upper corner has the engaging hole 52 of the lower swinging means 50, and is swingably mounted on at least one of the front surface and the rear surface of the rack body 10. It will be a shallow box-shaped door 20.

The lock / unlock mechanism of the door 20 rotates the lever 60 mounted on the front surface side of the door 20 so that the upper end of the upper lock rod 62-1 mounted on the rear surface side is engaged on the rack body side. Abutment 74
In addition, the lower end of the lower lock rod 62-2 has another engaging hole 76 on the rack body side.
It is assumed that it is provided at the side edge portion of the door 20 facing the upper and lower swinging means 40 and 50, which are respectively fitted in.

The one end has an engaging hole 73 into which the upper end of the shaft 45 of the upper swinging means 40 is fitted, and the other end has an upper lock bar.
62-1 has an engaging hole 74 into which the stepping bolt 95 screwed into a screw hole at the center of the upper frame front member 11 or the upper frame rear surface member can be rotated about a cylindrical portion of the stepped bolt 95. , An upper bracket 71B having a length substantially equal to the width of the door 20 is mounted on the upper part of the rack body 10.

Further, the lower frame front member 12 has the projection 77 of the lower swinging means 50 on the upper surface of one end and the engaging hole 76 into which the lower lock rod 62-2 is fitted at the other end. Alternatively, a lower receiving metal fitting 72 having a length equal to the length of the upper receiving metal fitting 71 is rotatably provided around the cylindrical portion of the stepped bolt 95 screwed into the screw hole in the central portion of the lower frame member. The structure is attached to the lower part of the rack body 10.

As shown in FIG. 2, in addition to the one shown in FIG. 1, a spring 78-1 for suppressing the upper swinging means 40 side of the upper receiving member 71 from rotating downward about the stepped bolt 95. The lower swinging means 50 side of the lower receiving metal fitting 72 is provided with at least one of a spring 78-2 that suppresses downward rotation about the stepped bolt 95.

Alternatively, as illustrated in FIG. 3, an upper receiving member 71 rotatably mounted on the upper portion of the front surface or the rear surface of the rack body 10.
Engagement holes 74-1 and 74-2 into which the upper lock bars of the doors 20-1 and 20-2 are fitted are provided close to each other in the central portion of the.

An engaging hole into which the lower lock bar of each of the doors 20-1 and 20-2 is fitted is inserted in the central portion of the lower receiving metal fitting 72 that is rotatably attached to the lower portion of the front or rear surface of the rack body 10. Are installed close to each other.

In this way, the pair of doors 20-1 and 20-2 are mounted in a pair of upper and lower receiving fittings 71 and 72 in a double door type. The cover mounting structure has a pair of screw holes 37 provided near both ends of the upper edge plate of the edge frame 32, and a pair of engagement holes provided near both ends of the lower edge plate of the edge frame 32, The cover 30 has a shallow box shape.

A screw hole 83 corresponding to the screw hole 37 is provided on the upper surface, and the cylindrical portion of the stepped bolt 95 screwed into the screw hole at the center of the upper frame side member 13 or the upper frame rear surface member is used as an axis. An upper receiving metal fitting 81 having a length which is shorter than the width of the cover 30 and is desired to be rotatable is attached to the upper part of the rack body 10.

A stepped bolt 95 which has a pair of pins 84 to be fitted into the engaging holes of the cover 30 on the upper surface thereof and is screwed into the screw hole at the center of the lower frame side member 14 or the lower frame rear surface member. A lower receiving metal fitting 82 having a length substantially equal to the length of the upper receiving metal fitting 71 is attached to the lower part of the rack body 10 so as to be rotatable around the cylindrical portion.

The upper receiving metal fitting 81 is for holding the upper edge plate of the edge frame 32 of the cover 30 by stacking and fixing with screws.
The lower bracket 82 supports the lower portion of the cover 30. Alternatively, as illustrated in FIG. 4, an engaging plate 35 having a pair of engaging holes 36 near both ends is provided inside the cover 30 so as to be close to and parallel to the lower edge plate of the edge frame 32 of the cover 30. 35
Is supported by the lower bracket 82.

Alternatively, a decorative plate 90 covering the front surface of the upper receiving bracket 71 and a decorative plate covering the front surface of the lower receiving bracket 72, or a box-shaped decorative plate covering the front surfaces of the upper receiving bracket 71 and the upper receiving bracket 81 and a lower plate One of the decorative plates that covers the front surface of the receiving bracket 72 is provided.

[0040]

According to the present invention, a pair of upper and lower receiving fittings are rotatably mounted on the rack body, and a door is slidably mounted on the pair of upper and lower receiving fittings so that the door can be freely locked and unlocked. .

Therefore, even if the upper part sways later than the lower part due to an earthquake or the like and the rack main body is distorted into a rhombus, the upper and lower receiving brackets rotate around the respective stepped bolts, and the door is deformed. Holds the square shape without leaning. That is, since a force that relatively shifts does not act on the receiving member and the door, shearing force or bending force is not applied to the shaft of the rocking means, the lock rod, and the like.

Therefore, the shaft is not bent or broken, and the lock bar is not bent or broken. The cover is also fixed to a pair of upper and lower brackets that are rotatably mounted on the rack body. Therefore, even if there is an earthquake, a force that relatively displaces the cover and the bracket does not act, so that the screws, pins, and the like that fix the cover do not break.

Also, by mounting the decorative plate, the appearance of the electronic equipment casing becomes good.

[0044]

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

FIG. 1 is a perspective view of an embodiment of the invention of claim 1,
2 is a perspective view of the embodiment of the invention of claim 2, FIG. 3 is a perspective view of the embodiment of the invention of claim 3, FIG. 4 is a perspective view of the embodiment of the invention of claim 5, and FIG. FIG. 7 is a cross-sectional view of a key part of another embodiment of

As shown in FIG. 1, a frame main body 10 having a skeletal structure consisting of four gantry columns and an upper frame and a lower frame for fixing the upper and lower sides of the gantry has a door 20 mounted on the front side and left and right sides. The cover 30 is attached to the side surface of the and the door or the cover is attached to the back surface to cover the rack body.

The door 20 is a shallow box-like shape composed of a desired large rectangular main plate 21 that covers the front side of the rack body 10 and a thin plate thickness, and an edge frame 22 in which four side edges of the main plate 21 are bent inward. . The shaft 45 of the upper swinging means 40 is attached to the selected upper corner of the door 20 (on the right side in the figure), and is located directly below the shaft 45 of the lower edge plate of the edge frame 22 at the lower corner facing the upper corner. The engaging hole 52 of the lower swinging means 50 is bored.

The upper sliding means 40 is a shaft having a shaft 45 whose lower portion is bent in an L shape and which is slidably moved in the vertical direction at an upper corner portion.
45, and an engagement hole 73 into which the tip of a shaft 45 provided on the lower surface of an upper receiving fitting 71 to be described later is fitted.

More specifically, the upper swinging means 40 has a spring seat 42 attached to the upper corner of the door 20, and a shaft formed by bending the spring seat 42 and the upper edge plate of the edge frame 22 into a L-shaped lower portion. A hole (not shown) through which the straight portion of 45 passes is provided, and the spring seat 42 and the edge frame are provided.
A compression coil spring 43 having a shaft 45 penetrating the center line portion of the coil is interposed between the coil 22 and the upper edge plate of the coil 22. A C-shaped retaining ring, which serves as a seat for the upper end of the compression coil spring 43, is attached to the shaft 45, and the shaft 45 is constantly urged upward by the elastic force of the compression coil spring 43.

The lower swinging means 50 comprises a projection 77 provided on an upper part of a lower receiving metal fitting 72, which will be described later, and an engaging hole 52 provided in a lower edge plate of the edge frame 22 of the door 20. The locking / unlocking mechanism of the door 20 rotates the lever 60 mounted on the front surface side of the door 20 to move up and down to move away from the inside of the side edge portion facing the swinging means, or move up and down to approach. Upper lock bar 62
-1 and a lower lock rod 62-2, the door 20 is closed and the lever 60 is operated to operate the lever 60 so that the upper tip of the upper lock rod 62-1 will be described later.
By fitting the lower tip of the lower lock rod 62-2 into the engaging hole 76 of the lower receiving metal fitting 72 described later,
It locks the door 20.

Reference numeral 71 designates an L-shape in a side view consisting of a support side member 71B and a mounting side member 71A, which is an upper receiving metal member rotatably mounted on the upper frame front member 11 whose length is substantially equal to the width of the door 20. is there. Reference numeral 72 denotes a lower receiving metal fitting, which is L-shaped in a side view and includes a supporting side member 72B and a mounting side member 72A, and is rotatably mounted on the lower frame front member 12 whose length is substantially equal to the width of the door 20.

The upper receiving member 71 is an engagement hole into which the upper end of the shaft 45 of the upper swinging means 40 fits into one end of the supporting member 71B.
73 is provided, and an engaging hole 74 into which the upper end of the upper lock rod 62-1 is fitted is provided at the other end.

Further, a hole into which the cylindrical portion of the stepped bolt 95 is loosely inserted is provided substantially at the center of the mounting side member 71A of the upper receiving member 71. The lower receiving metal fitting 72 is provided with a projection 77 fitted into the engaging hole 52 provided on the door 20 side of the lower swinging means 50 at one end of the supporting side member 72B, and the lower lock rod 62-2 at the other end. An engaging hole 76 into which the lower tip of the is inserted is provided.

Further, a hole into which the cylindrical portion of the other stepped bolt 95 is loosely inserted is provided at a substantially central position of the mounting side member 72A of the lower receiving metal fitting 72. On the other hand, screw holes into which the respective stepped bolts 95 are screwed are provided so as to face each other at substantially the center position of the upper frame front member 11 and substantially at the center of the lower frame front member 12.

Then, the back surface of the mounting side member 71A is brought into contact with the upper frame front member 11, the stepped bolt 95 is inserted into the hole, and screwed into the screw hole of the upper frame front member 11, whereby the upper bracket 71 is attached. It is rotatably mounted on the upper part of the rack body 10.

Further, the bottom surface of the mounting side member 72A is brought into contact with the lower frame front member 12, the stepped bolt 95 is inserted into the hole, and screwed into the screw hole of the lower frame front member 12, whereby the lower bracket 72 is rotatably attached to the bottom of the rack body 10.

The lower frame front member 12 is provided with a stopper 100 for preventing the lower bracket 72 from tilting more than desired when the door 20 is opened, and the lower frame front member 12 portion below the lower sliding means 50. Is attached to.

To assemble the door 20 into the pair of upper and lower receiving metal fittings 71, 72 so as to be freely slidable, first, the edge frame 22 of the door 20 is fixed to the lower receiving metal fitting.
The projection 77 is fitted into the engaging hole 52 in alignment with the position 72, and then the upper portion of the door 20 is inserted into the lower surface of the upper receiving metal fitting 71 and aligned with the shaft 45 of the upper swinging means 40 pulled downward.

Then, when the hand pulling the shaft 45 is released, the shaft 45
The tip end of 45 is inserted into the engagement hole 73 of the upper bracket 71.
Therefore, the door 20 is slidably mounted. Then, when the door 20 is closed around the pivoting means, the upper edge plate of the edge frame 22 contacts the lower surface of the supporting side member 71B of the upper receiving metal fitting 71, and the lower edge plate of the edge frame 22 supports the lower receiving metal fitting 72. The door 20 is mounted between the pair of upper and lower brackets 71, 72 so as to contact the upper surface of the member 72B, and closes the opening on the front surface of the rack body 10.

Next, when the lever 60 is operated, the upper lock bar
The upper tip of 62-1 is in the engagement hole 74 of the upper receiving metal fitting 71, and the lower lock bar
Since the lower end of 62-2 is fitted into the engaging hole 76 of the lower receiving member 72, the door 20 is locked.

When the lever 60 is operated in the opposite direction, the lock is released and the door 20 can be opened. In the illustrated embodiment, the upper bracket and the lower bracket are angled in order to reduce the weight, but the shape is not limited to such an angle, and a channel or a prism may be used. Absent.

Further, the upper receiving member and the lower receiving member are mounted on the rack main body.
The door 20 may be rotatably attached to the back side of the rack 10, and the door 20 may be attached to the back side of the rack body 10. In the embodiment shown in FIG. 2, a spring is used instead of the stopper 100 shown in FIG. 1 to prevent the metal fitting from tilting due to the weight of the door even when the door 20 is opened.

That is, the spring receiving plate 79-1 is attached to the upper frame front member 11 portion above the engaging hole of the upper receiving metal fitting 71, and the spring 78 is provided between the spring receiving plate 79-1 and the upper metal fitting 71. -1 (compression coil spring) is attached to prevent the upper pivoting means 40 side of the upper receiving bracket 71 from rotating downward about the stepped bolt 95.

On the other hand, a spring receiving plate 79-2 is attached to the lower frame front member 12 portion below the engaging hole 76 of the lower receiving metal fitting 72, and between the spring receiving plate 79-2 and the lower metal fitting 72. A spring 78-2 (tensile coil spring) is attached to prevent the lower swinging means 50 side of the lower receiving bracket 72 from rotating downward about the stepped bolt 95.

Therefore, the state in which the door 20 is opened, and the door 20
A pair of upper and lower brackets 7 in either closed state
1,72 is held almost horizontally and parallel. Therefore, door 2
Open and close 0 smoothly.

Further, a tension coil spring is attached to the upper swinging means 40 side of the upper receiving metal fitting to prevent the upper swinging means 40 side of the upper receiving metal fitting 71 from rotating downward about the stepped bolt 95. . Alternatively, the compression coil spring is used as the lower moving means of the lower receiving member 72.
It may be mounted on the 50 side to prevent the lower swinging means 50 side of the lower receiving member 72 from rotating downward about the stepped bolt 95.

In the event of an earthquake, since the upper and lower brackets 71, 72 are inclined with respect to the rack body 10, it goes without saying that no shearing force is applied to the lock rod or the like mounted on the door 20 side. .
In FIG. 3, 20-1 and 20-2 are a pair of left and right doors having a width shorter than half the width of the rack body 10 and having a symmetrical configuration.

Upper support metal fitting 71 whose length is almost equal to the width of the door 20
Is attached to the upper frame front member 11 so as to be rotatable around the cylindrical portion of the stepped bolt 95. Also, the length is the door
A lower receiving metal fitting 72 having a width substantially equal to 20 is mounted on the lower frame front member 12 so as to face the upper receiving metal fitting 71 so as to be rotatable about the cylindrical portion of the stepped bolt 95.

The upper bracket 71 has a door 20-1 near the right end.
The engaging hole 73 into which the upper end of the shaft 45-1 of the upper swinging means 40 is inserted.
-1 is provided, and an engagement hole 73-2 into which the upper end of the shaft 45-2 of the upper sliding means 40 of the other door 20-2 is fitted is provided near the left end.

A door is provided near the center of the upper bracket 71.
The engaging hole 74-1 into which the upper lock rod 62-1 on the 20-1 side is fitted and the door 20
An engagement hole 74-2 into which the upper lock rod 62-1 on the -2 side is inserted is provided in the vicinity.

On the other hand, in the lower receiving member 72, a protrusion 77 of the lower swinging means 50 of the door 20-1 is provided in the upper portion near the right end portion, and a lower swinging of the other door 20-2 in the upper portion near the left end portion. Protrusions (not shown) of the means 50 are provided.

A door is provided near the center of the lower receiving metal fitting 72.
An engaging hole 76-1 into which the lower lock bar 62-2 on the 20-1 side is fitted and a door 20
An engaging hole (not shown) into which the lower lock rod 62-2 on the -2 side is inserted is provided in close proximity.

A pair of doors 20-1 and 20-2 are mounted in a double-door type as the upper brackets 71 and 72 of the above-mentioned structure, and the front opening of the rack body 10 is openably and closably closed. Since the pair of doors is attached to the double-door type, the upper receiving metal fitting 71 and the lower receiving metal fitting 72 are balanced left and right.

Therefore, it is not necessary to provide the stopper or the spring (spring 78-1, or spring 78-2) shown in FIG. The cover mounting structure of the present invention will be described with reference to FIG.

The cover 30 includes a main plate 31 having a desired large rectangular shape that covers the side surface or the back surface of the rack body 10 (the side cover is shown in the figure) and an edge formed by bending the four side edges of the main plate 31 inward. It is a shallow box shape consisting of a frame 32.

Engaging plates 35 are fixed to the cover 30 on the back surface side of the main plate 31 so as to be close to and parallel to the lower edge plate of the edge frame 32. A pair of engagement holes 36 into which the pins 84 of the metal fitting 82 are fitted are provided.

Further, a pair of screw holes 37 into which the screws 34 are respectively inserted are provided near the left and right ends of the upper edge plate of the edge frame 32 of the cover 30. Reference numeral 81 denotes an upper receiving metal fitting which is L-shaped in a side view and includes a supporting side member and a mounting side member, and which is rotatably mounted on the upper frame side member 13 and has a length shorter than the width of the cover 30.

Screw holes 83 into which the screws 34 are screwed are provided at positions corresponding to the screw holes 37 of the cover 30 near the left and right ends of the support side member of the upper bracket 81. And the upper bracket 81
A hole into which the cylindrical portion of the stepped bolt 95 is loosely inserted is provided at a substantially central position of the mounting side member, the back side of the mounting side member is brought into contact with the upper frame side member 13, and the stepped bolt 95 is inserted into the hole to mount the upper side. The upper receiving metal fitting 81 is mounted on the rack main body by being screwed into the screw hole of the frame side member 13.
It is rotatably attached to the top of 10.

Reference numeral 82 denotes an L-shaped side view, which is composed of a supporting side member and a mounting side member, and has a length equal to the length of the upper receiving metal fitting 81 and is rotatably mounted on the lower frame side member 14. It is a metal fitting. A pair of pins 84 are provided so as to project at a position corresponding to the engagement hole 36 of the engagement plate 35 of the cover 30 on the upper surface of the supporting side member of the lower receiving metal fitting 82.

Then, a hole into which the cylindrical portion of the stepped bolt 95 is loosely inserted is provided at a substantially central position of the mounting side member of the lower receiving metal fitting 82, and the back surface of the mounting side member is brought into contact with the lower frame side member 14. By inserting the stepped bolt 95 into the hole and screwing the stepped bolt 95 into the screw hole of the lower frame side member 14, the lower receiving metal fitting 82 is rotatably attached to the lower part of the frame body 10.

The cover 30 described above is aligned with the side surface of the rack body 10, the engaging plate 35 is placed on the supporting side member of the lower receiving metal fitting 82, and the pin 84 is fitted into the engaging hole 36. Next, the upper edge plate of the edge frame 32 is overlaid on the upper receiving member 81 supporting side member, and the screw 34 is screwed into the screw hole 83 to fix the cover 30 to the rack main body 10,
The side opening 10 is covered with a cover 30.

As described above, the cover 30 is fixed to the pair of upper and lower receiving fittings 81, 82 which are rotatably attached to the rack body 10. Does not act as a force that is relatively displaced. Therefore, the cover 30
The screw 34 that fastens and the pin 84 that is engaged do not break.

The engagement plate shown in FIG. 4 is provided on the cover 30 side.
Even if the lower edge plate of the edge frame 32 of the cover 30 is provided with the engaging hole 36 into which the pin 84 is fitted in the lower edge plate of the edge frame 32 of the cover 30, the lower receiving metal fitting 82 directly supports the lower edge plate of the edge frame 32. good.

In FIG. 5, 90 is a side L-shaped decorative plate whose length is equal to the width of the rack body 10. The decorative plate 90 is aligned with the upper frame of the rack main body 10 so that the vertical member of the decorative plate 90 covers the front surface of the upper receiving metal fitting 71 and projects toward the front side of the main plate 21 of the door 20 to form a decorative plate. 90 horizontal members are screwed and fixed to the rack body 10.

A decorative plate (not shown) having a U-shape in plan view is fixed to the lower frame of the rack body 10 by screwing so as to cover the front surface of the lower bracket. By mounting the decorative plate 90 on the rack body 10 as described above, the appearance of the rack body 10 becomes good.

In the case of an earthquake or the like, the door rotates together with the receiving metal fitting, but since the vertical member of the decorative plate projects toward the front side of the main plate of the door, the rotation of the door is prevented. There is no obstacle.

The decorative plate to be attached to the upper part of the rack body is
Needless to say, it may be frame-shaped to cover the front surfaces of the front main body, the both side surfaces, and the rear surface of the rack body.

[0088]

As described above, according to the present invention, a pair of upper and lower receiving fittings are rotatably mounted on a rack main body, and a door can be slidably mounted on the pair of upper and lower receiving fittings, and locking / unlocking is performed. It is freely mounted, and even if the rack body vibrates due to an earthquake or the like, the shaft of the swinging means and the lock rod are not subjected to shearing force or bending force, and they bend or break. It has the effect of never happening.

Further, the cover is rotatably mounted on the rack body and fixed to a pair of upper and lower receiving fittings, and even if an earthquake occurs, the screws and pins fixing the cover and the receiving fitting are broken. It has the effect of never happening.

Further, by providing the spring for suppressing the inclination of the receiving metal fitting when the door is opened, there is an effect that the door can be opened and closed smoothly. Furthermore, by mounting the decorative plate on the rack body side, the appearance of the electronic device housing becomes good.

[Brief description of drawings]

1 is a perspective view of an embodiment of the invention of claim 1;

FIG. 2 is a perspective view of an embodiment of the invention of claim 2;

FIG. 3 is a perspective view of an embodiment of the invention of claim 3;

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

FIG. 5 is a sectional view showing a main part of another embodiment of the present invention.

FIG. 6 is a perspective view of a conventional electronic device housing.

7 (A) and (B) are perspective views of the main parts of the door.

FIG. 8 is a view showing a conventional cover mounting structure.

9 (A) and 9 (B) are diagrams for explaining conventional problems.

[Explanation of symbols]

10 Frame main body 11 Upper frame front member 12 Lower frame front member 13 Upper frame side member 14 Lower frame side member 16a, 83 Screw hole 17a, 84 Pin 20 Door 21,31 Main plate 22,32 Edge frame 30 Cover 34 Screw 35 Engagement plate 37 Screw hole 40 Upper sliding means 42 Spring seat 43 Compression coil spring 45 Axis 50 Lower sliding means 51,77 Protrusion 60 Lever 62-1 Upper lock rod 62-2 Lower lock rod 71,81 Upper bracket 72, 82 Lower bracket 78-1,78-2
Spring 90 Decorative plate 95 Stepped bolt 100 Stopper 36,52,73,73-1,73-2,74,74-1,74-2,76,76-1 Engagement hole

Claims (6)

[Claims] 1. On each of the four sides of the frame body having a skeletal structure,
In an electronic device equipped with a door or a cover, the shaft (45) of the upper swinging means (40) is mounted in the selected upper corner, and the lower edge plate of the lower edge frame (22) facing the upper corner is attached to the lower edge plate. Lower movement means (5
0) with a shallow box-shaped door (20) having an engaging hole (52) and slidably mounted on at least one of the front surface and the rear surface of the rack main body (10), and the upper and lower doors. The lever (60) provided on the side edge of the door (20) facing the sliding means (40, 50) and attached to the front side of the door (20) is rotated to attach it to the back side. The upper end of the upper lock rod (62-1) is inserted into the engaging hole (74) on the rack body side, and the lower lock rod (62-2).
The lower tip of each of the locking and unlocking mechanisms is fitted into the other engaging hole (76) on the rack body side, and the upper tip of the shaft (45) of the upper swinging means (40) is provided at one end. It has an engaging hole (73) to be inserted, and the upper lock rod (6
2-1) has an engagement hole (74) into which the upper frame front member (1
1) Alternatively, the rack main body (1) is rotatably rotatable about the cylindrical portion of the stepped bolt (95) screwed into the screw hole at the center of the rear frame member of the upper frame.
(0) is attached to the upper part of (0), the length is almost equal to the width of the door (20), and the projection (77) of the lower swinging means (50) is provided on the upper surface of one end. Engagement hole in which the lower lock rod (62-2) is fitted at the other end
(76) The lower frame front member (12) or the lower frame rear surface member can be rotated about the cylindrical portion of the stepped bolt (95) screwed into the screw hole at the center of the rear frame member as an axis. An electronic equipment housing, comprising: a lower receiving metal fitting (72) mounted on a lower portion of (10) and having a length equal to the length of the upper receiving metal fitting (71). 2. A spring (78-1) for suppressing downward rotation of the upper support member (71) side (40) side of the upper bracket (71) of claim 1 about the stepped bolt (95). Or a spring (78-2) for restraining the lower pivoting means (50) side of the lower bracket (72) of claim 1 from rotating downward about the stepped bolt (95). And an electronic device housing comprising at least one of them. 3. The door (20-1, 20-2) is provided at the center of the upper bracket (71) rotatably mounted on the upper part of the front or rear surface of the rack body (10) according to claim 1. ) An engaging hole (74-1, 74-2) into which the upper lock bar is fitted is provided in the vicinity of the engaging hole (74-1, 74-2), and the lower part is rotatably mounted on the lower part of the front surface or the rear surface of the rack body (10) according to claim 1. An engaging hole into which the lower lock bar of each of the doors (20-1, 20-2) is fitted is provided in the center of the receiving metal fitting (72), and a pair of the doors (20-1, 20- An electronic device housing characterized in that (2) is mounted on the upper and lower receiving fittings (71, 72) in a double door type. 4. A pair of screw holes (37) provided near both ends of the upper edge plate of the edge frame (32), and a pair of screw holes (37) provided near both ends of the lower edge plate of the edge frame (32). Shallow box-shaped cover with engaging holes
(30) and a screw hole (83) corresponding to the screw hole (37) on the upper surface, and a step screwed into the screw hole at the center of the upper frame side member (13) or the upper frame rear surface member An upper bracket (81), which is rotatably mounted on the upper part of the rack body (10) about the cylindrical portion of the bolt (95), has a length shorter than the width of the cover (30). ) And a pair of pins (84) fitted on the upper surface into the engagement holes of the cover (30)
And has a stepped bolt (95) that is screwed into a screw hole at the center of the lower frame side member (14) or the lower frame rear surface member, and that is rotatable about the cylindrical part. A lower receiving metal fitting (82) attached to the lower part of (10) and having a length equal to the length of the upper receiving metal fitting (81), the upper receiving metal fitting (81) being An upper edge plate of the edge frame (32) is overlapped and screwed and fixed to be held, and the lower receiving fitting (82) supports a lower portion of the gover (30). Electronic device housing. 5. A pair of engagement holes (36) near both ends inside the cover (30) so as to be close to and parallel to the lower edge plate of the edge frame (32).
5. The electronic equipment casing according to claim 4, wherein an engaging plate (35) having the above is provided, and the engaging plate (35) is configured to be supported by the lower metal fitting (82). 6. A decorative plate (90) for covering the front surface of the upper bracket (71).
And a decorative plate that covers the front surface of the lower bracket (72) or a box-shaped decorative plate that covers the front surfaces of the upper bracket (71) and the upper bracket (81) and a decorative plate that covers the front surface of the lower bracket (72). Any one of the above is provided, The housing of the electronic device according to claim 1, 2, 3, 4 or 5.