JP3521008B2 - Electronic unit housing - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device having an electronic unit mounted on a frame, and more particularly to an electronic unit casing.

In many electronic devices such as communication devices, electronic components are installed in a box-shaped housing at a high density to provide electronic units, and such electronic units are mounted in parallel on a rack.

[0003]

2. Description of the Related Art The electronic device described above is shown in FIG. 5, and a conventional electronic unit housing is shown in FIG. In the figure, 1 is a rack of an electronic device, and 10 is an electronic unit in which electronic parts are densely incorporated in a box-shaped electronic unit housing 10A.

Reference numeral 2 is a lower shelf member that divides the rack 1 into upper and lower storage chambers, and a plurality of belt-shaped lower guide grooves 2A running in the front-rear direction are provided on the upper surface side of the lower shelf member 2. The lower guide groove 2A is a lower guide groove of the upper accommodation chamber.

Reference numeral 3 denotes an upper shelf member provided on the upper part of the rack 1 corresponding to the lower shelf member 2, and a plurality of strip-shaped upper guide grooves 3A running in the front-rear direction are provided on the lower surface side of the upper shelf member 3. ing. The upper guide groove 3A is an upper guide groove of the upper accommodation chamber.

On the other hand, a plurality of strip-shaped upper guide grooves (not shown) running in the front-rear direction are provided on the lower surface side of the lower shelf member 2 to serve as the upper guide grooves of the lower storage chamber. Further, a shelf member (not shown) facing the lower shelf member 2 is provided in the lower portion of the rack 1, and a lower guide groove of the lower storage chamber is provided on the upper surface of the shelf shelf member.

Backboards are attached to the rear surfaces of the upper and lower storage chambers, and these backboards are attached to these backboards.
A backboard connector is arranged corresponding to each guide groove.

Each electronic unit 10 is provided with a lower rail 20A on the lower frame member 11 and an upper rail 20B on the upper frame member 12 of a box-shaped electronic unit housing 10A which is long in the vertical direction.

A connector (not shown) is provided on the rear plate 13 of the electronic unit housing 10A. Insert the lower rail 20A into the lower guide groove 2A and the upper rail 20B into the upper guide groove 3A, push the electronic unit 10 into the rack 1, and press the rear plate.
The connectors arranged in 13 are inserted into the corresponding backboard connectors to mount the electronic units 10 on the rack 1 in parallel.

Electrical connection between the electronic units mounted in the accommodating chamber is made through the pattern of the backboard. Further, the electrical connection with the external device is made via a connector mounted on the back side of the bag board and a cable connecting to the external device.

Further, a necked screw (a necked screw 5 shown in FIG. 1 is provided in a screw hole formed in a lower portion of the front plate 14 of the electronic unit housing 10A.
7) is screwed and mounted, and the screw with a neck is screwed into the screw hole 5 provided on the front side of the shelf member to prevent the mounted electronic unit 10 from coming out of the rack 1.

Hereinafter, the conventional electronic unit housing 10A will be described in detail with reference to FIG. Electronic unit housing 10
A is a lower frame member 11, an upper frame member 12, a rear plate 13 and a front plate 14.
Is a box-shaped body in which one side surface of the frame-shaped main body is closed by the side plate 15 and the other side surface is closed by the other side plate 16.

The lower frame member 11 has a channel-shaped cross section in which the long side edges of a bottom plate made of a rectangular metal plate (for example, a steel plate) are bent inward at right angles, and edge plates are provided on both sides of the bottom plate. Further, the front edge of the bottom plate of the lower frame member 11 is bent inward to form a front edge plate.

The upper frame member 12 has a channel-shaped cross section in which the long side edges of a ceiling plate made of a rectangular metal plate (for example, a steel plate) are bent inward at right angles, and edge plates are provided on both sides of the ceiling plate. . Further, the front side edge of the ceiling plate of the upper frame member 12 is bent inward to form a front edge plate.

The rear plate 13 has a shallow box shape made of a thin metal plate. The lower portion of the rear plate 13 is inserted between the edge plates at the rear end of the lower frame member 11, and the edge member of the rear plate 13 and the lower frame member 11 are fixed to each other by using screws to fix the lower frame member 11. ing.

Further, the upper portion of the rear face plate 13 is inserted between the edge plates of the rear end portion of the upper frame member 12 facing and parallel to the lower frame member 11, and the edge member of the rear face plate 13 and the upper frame member 12 are connected. The rear surface plate 13 is fixed to the upper frame member 12 by fixing it using screws.

The front plate 14 is a shallow box shape made of a thin metal plate. Externally fit the lower part of the front plate 14 to the front end of the lower frame member 11,
The front plate 14 and the front edge plate of the lower frame member 11 are fixed to each other with screws. Further, the upper portion of the front plate 14 is externally fitted to the front end portion of the upper frame member 12, and the main face plate of the front plate 14 and the front edge plate of the upper frame member 12 are fixed with screws.

The lower frame member 11, the upper frame member 12, the rear plate 13 and the front plate 14 are assembled as described above to form a frame-shaped main body of the electronic unit housing 10A. On the other hand, a handle 25 having a U-shaped plan view is attached to the lower part and the upper part of the main plate of the front plate 14 so that the electronic unit 10 can be easily inserted into and removed from the rack 1.

The side plate 15 has a shallow box shape, and the side edge on the opening side of the edge member is bent outward at a right angle to form a front edge plate 15A, a lower edge plate 15B, an upper edge plate 15C and a rear edge plate 15D. It is provided. Front edge plate
The size of 15A is almost equal to the size of the edge member of the front plate 14, the size of the lower edge plate 15B is almost equal to the size of the edge plate of the lower frame member 11, and the size of the upper edge plate 15C is the edge plate of the upper frame member 12. And the size of the crotch rear edge plate 15D is substantially equal to the size of the edge member of the rear face plate 13.

A plurality of (three in the figure) screws for inserting the neck portions of the screws 29 are arranged on each edge plate of the side plate 15. Further, a plurality (three in the figure) of screw holes (screws 29 are screwed into the edge frame member of the front plate 14, the edge plate of the lower frame member 11, the edge plate of the upper frame member 12, and the edge member of the rear plate 13 respectively. Screw holes) are provided.

Then, the side plate 15 is applied to the side surface of the frame-shaped main body, and the side plate 15 is fixed to the frame-shaped main body with screws 29.
The other side plate 16 has the same shape as the side plate 15 described above, and includes a front edge plate 16A, a lower edge plate 16B, an upper edge plate 16C, and a rear edge plate, and a screw 29 on the other side surface of the frame-shaped main body. It has been fixed using.

Reference numeral 20A is a lower rail made of an elongated metal plate fixed to the lower surface of the main surface plate of the lower frame member 11 so as to travel in the front-rear direction. The lower rail 20A has a plurality of (three in the figure) stepped holes 21 on the center line. The lower rail 20A is fixed to the lower frame member 11 by embedding a screw 22 in the stepped hole 21 and screwing the screw 22 into the screw hole of the lower frame member 11.

Reference numeral 23 is a slide body made of a synthetic resin having a small frictional resistance (for example, a fluororesin such as polytetrafluoroethylene). The slide body 23 has a boss projecting from the center of the upper surface of the disc part. By pressing this boss into the large diameter hole of the stepped hole 21 of the lower rail 20A, the lower rail
It is fixed to the bottom surface of 20A and arranged in a row in the front-back direction.

Reference numeral 20B is an upper rail made of an elongated metal plate fixed to the upper surface of the main face plate of the upper frame member 12 so as to run in the front-rear direction. The upper rail 20B has a plurality of (three in the figure) stepped holes on the center line. By embedding a screw in this stepped hole and screwing it into the screw hole of the upper frame member 12, the upper rail 20
B is fixed to the upper frame member 12.

The upper rail 20B does not need a slide body. The electronic unit housing 10 configured as described above
An electronic unit 10 containing electronic components is mounted on A
In order to mount the electronic unit 10 into the rack 1, the lower rail 20A attached to the electronic unit housing 10A is inserted into the lower guide groove 2A of the rack 1 and the upper rail 20B is inserted into the upper guide groove 3A, and the electronic unit 10 is pushed into the rack 1.

At this time, the electronic unit 10 is pushed into the rack 1 with the lower surface of the slide body 23 mounted on the lowermost rail 20A being in contact with the bottom surface of the lower guide groove 2A of the lower shelf member 2.
Since the friction coefficient of the slide body 23 is small, the electronic unit 10 can be pushed into the rack 1 with a relatively small force.

[0027]

In the conventional electronic unit housing, as described above, the lower frame member, the upper frame member, the rear plate and the front plate are screwed together to be assembled into a frame-shaped main body, and further left and right. The side plate of is fixed to the frame-shaped body by screwing it with a large number of screws.

That is, the conventional electronic unit housing has a problem that the number of man-hours for screw holes and the number of man-hours for screw-threading are large, it takes a long time to assemble, and the cost is high. Further, the conventional electronic unit housing has a plurality of slide bodies mounted in a vertical row in the front-rear direction on the lower surface of the lower rail attached to the lower frame member.

Therefore, at the initial stage of the work of pushing the electronic unit into the rack, the portion of the lower rail near the rear surface plate is supported by the lower shelf member via the slide body.
The location of the lower rail, which is directly above the front end of the lower shelf member,
Since there is no slide body, the electronic unit housing inclines forward and downward.

Therefore, since the upper portion of the upper rail of the electronic unit casing near the rear surface plate comes into contact with the upper shelf member, if the front side of the electronic unit casing is not lifted,
The electronic unit cannot be pushed into the rack.

That is, the conventional electronic unit housing has a problem that it is not easy to mount it on the rack. The present invention was created in view of the above points, and an object of the present invention is to provide an electronic unit housing that requires a short time for assembly, is low in cost, and can be easily mounted on a rack.

[0032]

In order to achieve the above object, the present invention is, as illustrated in FIG. 1, a case of an electronic unit mounted in parallel on a rack, which has a rectangular shape long in the front-rear direction. Bottom plate 30M and a pair of edge plates 32 formed by bending left and right side edges of the bottom plate 30M, and a lower frame member 30 having a channel-shaped cross section, and formed on the center line of the bottom plate 30M of the lower frame member 30. A cross-section channel including a strip-shaped guide groove 31 that travels in the front-rear direction, a rectangular ceiling plate 40M that is long in the front-rear direction, and a pair of edge plates 42 that are formed by bending the left and right side edges of the ceiling plate 40M. The upper frame member 40 has a shape, and a strip-shaped guide groove 41 formed on the center line of the ceiling plate 40M of the upper frame member 40 and running in the front-rear direction.

Further, the lower end is fitted and welded and fixed to the rear end of the lower frame member 30, and the upper end is fitted and welded and fixed to the rear end of the upper frame member 40 so that they are vertically opposed to each other. A shallow box-shaped rear plate that connects the rear ends of the lower frame member 30 and the upper frame member 40 arranged in parallel, and the lower end portion is fitted and welded and fixed to the front end portion of the lower frame member 30, and the upper portion. Is fitted to the front end portion of the upper frame member 40 and welded and fixed, thereby connecting the front end portions of the lower frame member 30 and the upper frame member 40, which are vertically opposed to each other and are arranged in parallel, to each other in a shallow box shape. And a face plate 50.

Further, the lower frame member 30 and the upper frame member 40 are composed of a main face plate and a tongue-shaped front edge plate 71A which is fitted and fixed to the lower side of the edge member 51 of the front plate 50 at the front side edge of the main face plate. , A pair of side plates 70A and 70B attached to the left and right side surfaces of the frame body 110 in which the front plate 50 and the rear plate 60 are assembled, and a lower frame member attached to the lower inside of the main plate of the side plates 70A and 70B. The hook fitting 80 is attached to the edge plate 32 of 30 and another hook fitting 80 is attached to the inside of the upper portion of the main face plate and is attached to the edge plate 42 of the upper frame member 40.

In the side plates 70A and 70B, the tongue-shaped front edge plate 71A is engaged with the front plate 50, one hook fitting 80 is engaged with the lower frame member 30, and the other hook fitting 80 is with the upper frame member 40. The rear portion of the main face plate is closely attached to the edge member 61 of the rear face plate 60 and is screwed to close the left and right side faces of the frame main body 110. Is slidably fitted to the rail 4 provided on the lower shelf member 2 of the rack 1, and the guide groove 41 of the upper frame member 40 slides on the rail 4 provided on the upper shelf member 3 of the rack 1. It can be freely fitted.

Alternatively, the lower frame member 30 is attached to the lower shelf member 2 of the rack 1.
A lower rail that fits in sliding movement is formed in the lower guide groove provided on the upper frame member 40, and an upper rail that fits in sliding movement is formed in the upper guide groove provided in the upper shelf member 3 of the rack 1 on the upper frame member 40. It will be configured as follows.

As illustrated in FIG. 2, the center portion of the rear surface side of the bottom surface of the guide groove 31 provided in the lower frame member 30 or the rear surface plate side of the lower surface of the lower rail provided in the lower frame member 30 is provided. A slide body 35 made of a material having a small coefficient of friction is fixed to the center of the end portion, and near the front end portion of the upper surface of the rail 4 provided on the lower shelf member 2 of the rack 1, or a lower guide groove provided on the lower shelf member 2. A pair of left and right slide bodies 8 made of a material having a small friction coefficient are fixed near the front end portion of the bottom surface.

Further, as illustrated in FIG. 4, seating tongue pieces 33 and 43 which come into contact with the back surface of the front plate 50 are provided at the front portion of the lower frame member 30 and the front portion of the upper frame member 40, and screws 59 are provided. Insert the neck of the handle into the holes provided in the tongue for seating and the hole provided in the front plate 50, and screw the screw into the screw hole provided in the shaft center of the leg 55A of the handle 55, Is fixed to the front surface side of the front plate 50.

[0039]

According to the present invention of claims 1 and 2, the lower frame member, the upper frame member, the front plate and the rear plate are welded to form a frame-shaped main body,
With the tongue-shaped front edge plate of the side plate inserted into the lower side of the edge member of the front plate of the frame-shaped body and engaged, and the hook metal fittings engaged with the edge plates of the lower frame member and the upper frame member. The rear part of the side plate is fixed to the rear face plate by using several screws.

In general, when assembling a frame-shaped structure, welding (for example, spot welding) rather than using screws reduces the number of work steps and ensures that the frame is solid. To assemble the side plate, several few screw holes are provided in the edge member of the rear face plate, and then the rear face plate is manually inserted and fixed to the side surface of the frame body. All you have to do is screw it into the hole.

Therefore, the electronic unit housing of the present invention has a short assembly work time and is inexpensive. According to a third aspect of the present invention, one slide body made of a material having a small friction coefficient is fixed to the rear end portion of the lower surface of the electronic unit casing, and the friction coefficient is fixed to the front end portion of the upper surface of the lower shelf member of the rack. Two slide bodies made of a small material are fixed to each other.

Therefore, during the work of pushing the electronic unit into the rack, the portion near the rear surface plate of the electronic unit housing, that is, the rear end portion is supported by the lower shelf member via the slide body attached to the electronic unit housing. There is.

Further, since the electronic unit housing portion immediately above the front end portion of the lower shelf member is supported by the slide body attached to the lower shelf member, the electronic unit housing is kept at the work of pushing the electronic unit into the rack. It is held substantially horizontal state.

That is, since it is not necessary to push the front portion of the electronic unit casing into the frame while pushing it up, the work of mounting the electronic unit casing on the frame becomes easy. According to the invention of claim 4, the neck portion of the screw is inserted into the hole provided in the seating tongue on the frame-shaped main body side and the hole provided in the front plate, and the screw portion is provided at the axial center of the leg portion of the handle. The front plate and the handle are fixed to the frame-shaped main body by being screwed into the screw holes.

That is, since the work of attaching the handle to the front plate and the work of mounting the front plate on the frame body are performed at the same time, the number of work steps can be reduced.

[0046]

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 diagram of an embodiment of the present invention, (A) is a perspective view showing a separated form, and (B) is a sectional view. 2 is a partially cutaway perspective view of an embodiment of the present invention, FIG. 3 is a view showing the essential points of the present invention, (A) is a perspective view, (B) is a sectional view, and FIG. 4 is a view of the present invention. It is sectional drawing which shows another important point.

In the figure, reference numeral 30 designates a rectangular bottom plate 30M made of a rectangular metal plate (eg, steel plate, aluminum plate) in the front-rear direction and a pair of left and right sides formed by bending the left and right side edges of the bottom plate 30M at substantially right angles. Is a lower frame member having a channel-shaped cross section composed of the edge plate 32.

Each of the edge plates 32 is provided with two notches 32A into which hook metal fittings 80 described later are inserted.
The front portion of the lower frame member 30 is extended to provide two seating tongue pieces 33. The tip of the seating tongue piece 33 is bent at a right angle to form a seat.

The seating tongue piece 33 is seated on the rear surface of the front plate 50, which will be described later, and is spot-welded to the front plate 50 or fixed to the front plate 50 by screws 59. It is something.

Reference numeral 31 is a strip-shaped guide groove formed on the center line of the bottom plate 30M of the lower frame member 30 and running in the front-rear direction.
Reference numeral 35 is a slide body made of a synthetic resin having a small frictional resistance (for example, a fluororesin such as polytetrafluoroethylene).

The slide body 35 has a boss projecting from the center of the upper surface of the disk portion.
It is pressed into a hole provided in the central portion of the end portion of the bottom surface of the bottom surface on the rear plate side, and is fixed to the lower frame member 30.

The height of the slide body 35 (the distance between the lower surface of the slide body 35 and the bottom surface of the guide groove 31) is sufficiently smaller than the depth of the guide groove 31. The slide body 35 is not limited to the disc shape and may be a square shape.

40 is a rectangular bottom plate 40M made of a rectangular metal plate (eg, steel plate, aluminum plate) long in the front-rear direction.
And a pair of left and right edge plates 42 formed by bending left and right side edges of the bottom plate 40M at substantially right angles, which is a channel-shaped upper frame member in cross section.

Each of the edge plates 42 is provided with two notches 42A into which hook metal fittings 80 described later are inserted.
In addition, the front portion of the upper frame member 40 is extended to have two seating tongue pieces.
43 are provided. The tip of the seating tongue piece 43 is bent at a right angle to form a seat.

The seating tongue piece 43 is seated on the rear surface of the front plate 50, which will be described later, and is spot-welded to the front plate 50 or fixed to the front plate 50 by screws 59. It is something.

Reference numeral 41 is a strip-shaped guide groove formed on the center line of the bottom plate 40M of the upper frame member 40 and running in the front-rear direction.
The shape of the upper frame member 40 is a shape symmetrical to the lower frame member 30,
Its size is equal to that of the lower frame member 30.

Reference numeral 60 denotes a shallow box-shaped rear face plate made of a metal plate that connects the rear end portions of the lower frame member 30 and the upper frame member 40, which are vertically opposed to each other and arranged in parallel. The rear surface plate 60 has a lower end portion fitted and welded and fixed to a rear end portion of the lower frame member 30, and an upper end portion fitted and welded and fixed to a rear end portion of the upper frame member 40.

A plurality of (two in the figure) screw holes into which screws 79 are screwed are provided on the side surface of the edge member 61 of the rear plate 60. Reference numeral 50 denotes a shallow box-shaped front plate made of a metal plate, which connects front ends of a lower frame member 30 and an upper frame member 40, which are vertically opposed to each other and arranged in parallel.

The lower end portion of the front plate 50 is fitted to the seating tongue piece 33 of the lower frame member 30 and fixed by welding or screws 59, and the upper end portion is fitted to the seating tongue piece 43 of the upper frame member 40. It is fixed by welding or screws 59.

Each longitudinal edge member 51 of the front plate 50
An inner edge plate 52 having a Z-shaped cross section is attached to the inside of the plate by spot welding or the like, and a gap formed by the inner edge plate 52 and the edge member 51 is inserted by a tongue-shaped front edge plate of a side plate described later. It is a gap to lock.

The lower frame member 30, the upper frame member 40, the front plate 50 and the rear plate 60 are assembled as described above to form the frame main body 110. Reference numeral 55 denotes a handle having a U-shape in a plan view, which is attached to the lower part and the upper part of the main face plate of the front plate 50 so as to project toward the front side.

As shown in detail in FIG. 4, the handle 55 is provided with a screw hole into which a screw 59 is screwed, at the axial center of each leg 55A. In addition, screws 59 are provided at the center of the seating tongue pieces 33, 43 and at a predetermined position of the front plate 50 corresponding to the center.
A screw hole for inserting the neck portion of the is provided.

The lower portion of the front plate 50 is externally fitted to the front portion of the lower frame member 30, and the seating tongue piece 33 of the lower frame member 30 is brought into contact with the rear surface of the front plate 50. At the same time, the upper portion of the front plate 50 is externally fitted to the front portion of the upper frame member 40, and the upper frame member is attached to the back surface of the front plate 50.
The seating tongue 43 of 40 is in contact.

Then, the end surfaces of the leg portions 55A of the respective handles 55 are brought into close contact with the surface of the front plate 50, the neck portions of the screws 59 are inserted into the seating tongue and the holes of the front plate, and screwed into the screw holes of the handles 55. By doing so, the front plate 50 and the handle 55 are fixed to the frame main body 110.

The electronic unit housing 100 is the frame main body described above.
The side plate 70A is attached to one side surface of the 110, and the side plate 70B is attached to the other side surface. The side plate 70A is made of a metal plate (for example, a steel plate or an aluminum plate), and has a main face plate 70A-1 that is substantially the same as the side surface shape of the frame main body 110 and a front face plate 50 at the front side edge of the main face plate 70A-1. Edge member 51 and inner edge plate 52
It is composed of a tongue-shaped front edge plate 71A that is inserted and engaged in a gap formed by and the three edge plates 72A in which the lower edge, the upper edge and the rear side edge of the main face plate 70A-1 are bent. ing.

A hole for inserting the neck of the screw 79 is provided near the rear side edge of the main face plate 70A-1 of the side plate 70A. Side plate 70
B is symmetrical to the side plate 70A and has a frame-shaped body.
The main plate 70B-1 and the main plate 70
A tongue-shaped front edge plate 71B, which is inserted into and engaged with the front side edge of B-1 in the gap formed by the edge member 51 of the front plate 50 and the inner edge plate 52, and the main face plate 70
B-1 is composed of three edge plates 72B in which a lower edge, an upper edge and a rear side edge are bent.

A hole for inserting the neck portion of the screw 79 is arranged near the rear side edge of the main face plate 70B-1 of the side plate 70B. 80 is
The hook metal fittings are attached to the inside of the lower portion of the main face plate 70A-1 of the side plate 70A and to the inside of the lower portion of the main face plate 70B-1 of the side plate 70B, and are attached to the edge plate 32 of the lower frame member 30. Further, the edge plate 42 of the upper frame member 40
Other hook fittings 80 that are attached to the main plate 70A-1 are attached to the inside of the upper part of the main plate 70A-1 and the inside of the main plate 70B-1 of the side plate 70B.

The hook metal fitting 80 is substantially Z-shaped as shown in detail in FIG. 3, and one face plate member is closely adhered to the inner surface of the main face plate by spot welding or the like, and the other face plate member is It becomes the holding plate portion 81, and the cutout 32A (or cutout) of the edge plate 32 (or the edge plate 42) of the corresponding lower frame member 30 (or the upper frame member 40).
42A) is loosely inserted and is positioned below the edge plate 32 (or the edge plate 42).

The sandwiching plate portion 81 is provided with an elastic protrusion 85 which comes into pressure contact with the lower surface of the edge plate 32 (or the edge plate 42).
Since the side plate 70A is configured as described above, the frame body
When the side plate 70A is aligned and brought into close contact with one side surface of the 110, the sandwiching plate portion 81 of each hook metal fitting 80 loosely inserts the corresponding notch 32A, 42A to the lower side of the edge plate 32, 42. To position.

When the side plate 70A is slidably moved to the front plate 50 side, the tongue-shaped front edge plate 71A is inserted into the lower side of the edge member 51 of the front plate 50 and is engaged therewith, and the sandwiching plate portion 81 is missing. From the cut position, move so as to enter the lower side of the edge plates 32, 42.

As a result, the edge plate 3 to which the projection 85 corresponds is formed.
Press on the underside of 2,42. Therefore, the end faces of the edge plates 72A of the side plates 70A come into close contact with the side faces of the edge plates 32, 42 and the side face of the edge member 61 of the rear face plate 60.

Thereafter, the rear portion of the side plate 70A is fixed to the rear face plate 60 by using the screw 79. In addition, according to the above-mentioned order, the side plate 70
Let B be attached to the other side of the frame body 110.

Electronic unit housing configured as described above
100 is a tongue-shaped front edge plate 71A, 71 of each of the side plates 70A, 70B.
B is inserted into the lower side of the edge member of the front plate 50 of the frame-shaped main body 110 and is attached thereto, and the hook metal fitting 80 is attached to the edge plate 32 or the edge plate 42 of the lower frame member 30 and the upper frame member 40. With two screws
The rear portion of the side plate is fixed to the rear face plate 60 by using 79.

Therefore, the electronic unit housing 100 is short in assembling work time and inexpensive, and as described above, the handle 55 is used.
Is attached to the electronic unit housing 100, the handle 55
To attach the front plate 50 to the front plate 50, and attach the front plate 50 to the frame main body 110.
Since the work to attach to
The work man-hour can be reduced accordingly.

Further, since the screw head does not protrude from the surface of the front plate 50, the appearance of the electronic unit housing 100 becomes good. On the other hand, as shown in FIG. 2, the rack on which the electronic unit housings 100 are mounted in parallel is provided with rails 4 that travel in the front-rear direction on the upper surface side of the lower shelf member 2.

The width of the rail 4 is slightly smaller than the width of the guide groove 31 of the lower frame member 30. Further, although not shown, rails are provided on the upper shelf member provided on the upper part of the rack 1 corresponding to the lower shelf member 2. The width of this rail is
The width is slightly smaller than the width of the guide groove 41 of the upper frame member 40.

On the other hand, in the vicinity of the front end portion of the upper surface 4A of the rail 4 provided on the lower shelf member 2 of the rack 1, a slide body made of a pair of left and right synthetic resins having a small frictional resistance (for example, fluororesin such as polytetrafluoroethylene). 8 is stuck.

As means for fixing the slide body 8, a boss is provided at the center of the upper surface of the disk portion, and this boss is provided on the rail 4
It is conceivable that it will be pushed into the hole provided in the and fixed. Further, the slide body 8 may have a rectangular shape instead of a disc shape,
You may adhere to the rail 4 with an adhesive agent.

The height of the slide body 8 (slide body 8
(The distance between the upper surface of the rail 4 and the upper surface of the rail 4) is equal to the height of the slide body 35 attached to the electronic unit housing 100 side.

The guide groove 31 of the electronic unit casing 100 is provided on the rail 4 of the lower shelf member 2 of the rack 1 at the upper portion thereof.
Are inserted into the rails of the upper shelf member 3 of the rack 1, the electronic unit housing 100 is pushed into the rack 1, and the connectors arranged on the rear plate 60 are inserted into the corresponding backboard connectors to form the rack 1.

Then, a screw with a neck screwed to the front plate 50.
The 57 is screwed into the screw hole provided in the rack 1 to prevent the electronic unit housing 100 from coming out of the rack 1. As described above, one slide body 35 made of a material having a small friction coefficient is fixed to the rear end portion of the lower surface of the electronic unit housing 100, and
Two slide bodies 8 made of a material having a small friction coefficient are fixed to the front end portion of the upper surface 4A of the rail of the lower shelf member 2.

Therefore, the electronic unit housing 100 is mounted on the rack 1.
During the work of pushing in, the portion of the electronic unit housing 100 near the rear surface plate, that is, the rear end portion of the guide groove 31 is supported by the upper surface 4A of the rail 4 via the slide body 35 and is provided at the front end portion of the rail 4. The bottom of the guide groove 31 directly above the slide body 8
It is supported by the slide body 8.

Therefore, the electronic unit housing 100 is mounted on the rack 1.
The electronic unit housing 100 is always held horizontally during the pushing operation. Therefore, it is not necessary to push the front portion of the electronic unit casing into the frame while lifting the front portion of the electronic unit casing as in the conventional case, so that the work of mounting the electronic unit casing on the frame is easy.

On the other hand, the same effect can be obtained by the following method without providing the guide groove on the electronic unit casing side as shown in the figure. A lower convex rail is formed on the lower frame member 30, and an upper convex rail is formed on the upper frame member 40.

A lower guide groove is formed in the lower shelf member 2 of the rack 1,
Upper guide grooves are provided in the upper shelf member 3 of the rack 1, respectively. The slide body 35 made of a material having a small friction coefficient is provided at the center of the rear plate side end of the lower surface of the rail provided on the lower frame member 30.
And a pair of left and right slide bodies 8 made of a material having a small friction coefficient are fixed near the front end portion of the bottom surface of the lower guide groove provided in the lower shelf member 2.

[0087]

Since the present invention is constituted as described above, it has the following effects.

The lower frame member, the upper frame member, the front plate and the rear plate are welded to form a frame-shaped main body, and the tongue-shaped front edge plate of the side plate is attached to the edge member of the front plate of the frame-shaped main body. The hook metal fittings are attached to the edge plates of the lower frame member and the upper frame member, and the rear part of the side plate is fixed to the rear face plate by using several screws, so that the frame-shaped body can be securely and firmly attached. Become.

Further, the assembly work time is short and the cost is low.
One slide body made of a material having a small friction coefficient is fixed to the rear end portion of the lower surface of the electronic unit housing, and two slide bodies made of a material having a small friction coefficient are attached to the front end portion of the upper surface of the lower shelf member of the rack. By being fixed, the force for pushing the electronic unit casing into the rack can be small.

In addition, since the electronic unit casing is held in a substantially water state during the work of pushing the electronic unit casing into the rack, the work of mounting the electronic unit casing on the rack becomes easy. By making the screw for attaching the handle to the front plate common to the screw for attaching the front plate to the frame body, the work time for attaching the handle is reduced and the cost is reduced accordingly.

Further, since the screw head does not protrude from the surface of the front plate, the appearance of the electronic unit casing becomes good.

[Brief description of drawings]

FIG. 1 is a diagram of an embodiment of the present invention, in which (A) is a perspective view shown in a separated form, and (B) is a sectional view.

FIG. 2 is a partially cutaway perspective view of an embodiment of the present invention.

3A and 3B are views showing the main points of the present invention, in which FIG. 3A is a perspective view and FIG. 3B is a sectional view.

FIG. 4 is a cross-sectional view showing another important part of the present invention.

FIG. 5 is a perspective view of an electronic device.

FIG. 6 is a perspective view showing a conventional example in a separated form.

[Explanation of symbols]

1 rack 2 lower shelf member 2A lower guide groove 3 upper shelf member 3A upper guide groove 4 rails 8,23,35 slide body 10 electronic unit 10A, 100 electronic unit housing 5 screw hole 11, lower frame member 12,40 upper frame member 14,50 Front plate 13,60 Rear plate 15,16,70A, 70B Side plate 25,55 Handle 29,79 Screw 30 Lower frame member 40 Upper frame member 31,41 Guide groove 32,42 Edge plate 33,43 Sitting tongue Piece 51 Edge member 52 Inner edge plate 80 Hook metal fitting 81 Holding plate part 85 Projection 110 Frame type main body

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shown 59-96873 (JP, U) Shown 61-142485 (JP, U) Shown 63-15096 (JP, U) Shown flat 2- 127075 (JP, U) Actually opened 63-38377 (JP, U) Actually opened 61-35457 (JP, U) Actually opened 58-182473 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H05K 5/00-5/06

Claims (2)

(57) [Claims] 1. A housing of an electronic unit mounted in parallel on a rack, comprising: a rectangular bottom plate long in the front-rear direction; and a pair of edge plates formed by bending left and right side edges of the bottom plate. A lower frame member having a channel-shaped cross section, a strip-shaped guide groove formed on the center line of the bottom plate of the lower frame member and running in the front-rear direction, a rectangular ceiling plate long in the front-rear direction, and left and right sides of the ceiling plate. An upper frame member having a channel-shaped cross section formed of a pair of edge plates formed by bending side edges thereof, and a strip-shaped guide groove running in the front-rear direction formed on a center line of a ceiling plate of the upper frame member. , The lower frame member is fitted and welded to the rear end part of the lower frame member, and the upper end part is fitted to and welded to the rear end part of the upper frame member, whereby the lower frame member and the upper frame member are fixed. A shallow box-shaped rear plate that connects the rear ends of the members, and the lower end fits into the front end of the lower frame member and melts. A shallow box-shaped front plate that connects the front ends of the lower frame member and the upper frame member by welding and fixing the upper frame to the front end of the upper frame member. Has a tongue-shaped front edge plate which is fitted and fixed to the lower side of the edge member of the front plate at the front side edge of the main face plate, and the lower frame member, the upper frame member, the front plate and the rear plate are assembled. A pair of side plates attached to the left and right side surfaces of the frame main body, and hook fittings attached to the inside of the lower part of the main face plate of the side plates to engage with the edge plates of the lower frame member. Other hook metal fittings attached to the inside of the upper portion of the main face plate so as to be attached to the edge plate of the frame member, the side plate, the tongue-shaped front edge plate is attached to the front plate, With one of the hook fittings attached to the lower frame member and the other hook fitting attached to the upper frame member, the rear portion of the main face plate is closely attached to the edge member of the rear face plate and screwed. By being fit, which closes the left and right sides of the frame-shaped body, the guide groove of the lower frame member is adapted to slidably fit on the rails provided on the lower shelf members of said rack The guide groove of the upper frame member is slidably fitted to the rail provided on the upper shelf member of the rack, and the center of the rear plate side end of the bottom surface of the guide groove provided on the lower frame member. A slide body made of a material having a small friction coefficient is fixed to the section, and a pair of left and right slide bodies made of a material having a small friction coefficient are fixed near the front end of the upper surface of the rail provided on the lower shelf member of the rack. An electronic unit case characterized by the above. 2. A housing for electronic units mounted in parallel on a rack, comprising: a rectangular bottom plate long in the front-rear direction; and a pair of edge plates formed by bending left and right side edges of the bottom plate. a lower frame member of the sectional channel shaped comprising a Relais Lumpur to travel in the longitudinal direction formed on the bottom plate center line of the lower frame member, a long rectangular ceiling plate in the front-rear direction, and left and right of the top plate An upper frame member having a channel-shaped cross section composed of a pair of edge plates formed by bending side edges of the upper frame member and a front-back direction formed on a center line of a ceiling plate of the upper frame member.
The traveling rail and the lower end are fitted and welded and fixed to the rear end of the lower frame member, and the upper end is fitted and welded and fixed to the rear end of the upper frame member. And a shallow box-shaped rear face plate connecting the rear end portions of the upper frame member and the lower end portion to the front end portion of the lower frame member by welding and fixing, and the upper portion to the front end portion of the upper frame member. A shallow box-shaped front plate that connects the front end portions of the lower frame member and the upper frame member by being fitted and fixed by welding, and an edge member of the front plate at the front side edge of the rectangular main face plate. A pair of tongue-shaped front edge plates that fit and engage with the lower side of the frame body, and are attached to the left and right side surfaces of the frame-shaped main body formed by assembling the lower frame member, the upper frame member, the front plate, and the rear plate. Hook plate attached to the inside of the lower part of the main face plate of the side plate for engaging with the side plate of the lower frame member, and the main face for engaging with the edge plate of the upper frame member. A hook plate attached to the inside of the upper part of the plate, the side plate has the tongue-shaped front edge plate attached to the front plate, and one of the hook brackets attached to the lower frame member. The other side surface of the frame body is fixed by screwing the rear part of the main face plate in close contact with the edge member of the rear face plate while the other hook metal fitting is engaged with the upper frame member. It is intended to close a rail of the lower frame member, the strip provided on the lower shelf members of said rack
Of is intended to slidably fitted to the guide grooves, rails of the upper frame member, the strip provided on the upper shelf members of said rack
Of is intended to slidably fitted to the guide groove, the end center portion of the rear surface plate side of the lower surface of the rail provided on the lower frame member, the sliding member is secured to the friction coefficient is made of material having a low It is an electronic unit housing, wherein said near the front end portion of the bottom surface of the strip-shaped guide groove provided in the lower tray member of the rack, the slide member pair of the friction coefficient is a small material is being fixed .