JP2567010B2 - Structure of printed board storage unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Overview] A structure of a printed board storage unit suitable for stacking a plurality of printed board storage units to form a locker, which is lightweight and has a small number of parts, and more than one unit. For the purpose of providing a structure of a printed board storage unit that has sufficient strength and earthquake resistance when a rocker is built up by stacking the above, a roughly rectangular frame-shaped front and rear enclosures are attached between the left and right side plates, and the rear side is attached. A backboard having a connector for connecting to a printed board is attached to the enclosure frame, and upper and lower guide rail members for guiding the upper and lower ends of the printed board in the front-back direction are attached between the front and rear enclosure frames. .

[Industrial applications]

The present invention relates to a structure of a printed board storage unit suitable for forming a locker by stacking a plurality of printed board storage units.

When building a locker by stacking multiple printed circuit board storage units, each individual printed circuit board storage unit is lightweight and has a small number of parts, and when multiple printed circuit board storage units are stacked, the printed circuit board storage units are loaded. It must have sufficient strength to withstand rolling and rolling such as earthquakes.

[Conventional technology]

FIG. 4 shows the structure of a conventional stacking type printed board storage unit. Referring to FIG. 4, the printed board storage unit includes a shelf 1 for housing a large number of printed boards 2 and a unit casing 10 for housing the shelf 1. The shelf 1 and the unit casing 10 are independent casings. It has a body structure.

That is, the shelf 1 has left and right side plates 3 and 4 and upper and lower wall plates 5 and 6 having guide rails 5a and 6a, and the left and right side plates 3 and 4 are left and right of the upper and lower wall plates 5 and 6, respectively. It is fixed to the end. The printed board 2 is connected to a backboard 7 attached to the rear portion of the shelf 1 via a connector. Mounting brackets 8 and 9 are fixed to the outer surfaces of the left and right side plates 3 and 4, respectively.

On the other hand, the unit casing 10 includes left and right side plates 11 and 12,
The front cover 13, the rear cover 14, the mounting brackets 15 and 16 fixed inside the front and rear ends of the left and right side plates 11 and 12, and the mounting bracket 1
The front cover members 17 and 18 are attached to the front and rear members 5 and 16, and the front and rear lower member members 19 and 20 are attached to the lower portions of the front and rear ends of the left and right side plates 11 and 12, respectively. The rear cover 14 and the rear cover 14 are formed so as to be screwed to the front and rear mounting members 15 and 16, respectively. Shelf mounting members 21 and 22 are fixed to the inner surfaces of the side plates 11 and 12, respectively.

After inserting the shelf 1 into the unit casing 10,
By fixing the mounting brackets 8 and 9 of the shelf 1 to the shelf mounting brackets 21 and 22 of the unit casing 10, the shelf 1 is fixed in the unit casing 10.

[Problems to be Solved by the Invention]

In the conventional printed board storage unit described above,
Since the left and right side plates 3 and 4 of the shelf 1 and the left and right side plates 11 and 12 of the unit casing 10 have a double wall structure, there are drawbacks that the number of parts of the unit is large and the weight is heavy.

Further, since the left and right side plates 11 and 12 of the unit casing 10 are merely connected by the front and rear and upper and lower beam members 17 to 20, the strength of the unit casing 10 itself is weak, and therefore, a plurality of unit casings 10 are stacked. In that case, there is a risk that the lower unit casing 10 may not be able to bear the load, and there is a drawback that it is weak against rolling such as earthquake resistance.

Therefore, an object of the present invention is to provide a structure of a printed board storage unit which is lightweight, has a small number of parts, and has sufficient strength and earthquake resistance when a plurality of units are stacked to form a rocker. .

[Means for solving the problem]

In order to solve the above problems, the present invention installs a substantially rectangular frame-shaped front and rear enclosure between the left and right side plates, and attaches a backboard having a connector for connecting to a printed board to the rear enclosure, A structure of a printed board storage unit in which upper and lower guide rail members for guiding the upper and lower ends of the printed board in the front-rear direction are attached between the enclosures, and the front and rear enclosures each have four sides substantially. Formed by bending a thin metal plate so that it has a U-shaped cross section, and the corresponding two side cross sections are substantially symmetrical with respect to the frame center and open inward from each other. It will be done.

[Work]

In the structure of the printed board storage unit according to the present invention, since the left and right side plates are firmly connected by the front and rear enclosures having a substantially rectangular frame shape, a load, an earthquake, etc. when a plurality of printed board storage units are stacked. It is possible to obtain a strong housing structure that can sufficiently withstand the lateral swaying of the.
Moreover, since the left and right side plates are both the side plate of the shelf for housing the printed board and the side plate of the casing of the unit, there is no need for a double side plate structure, so the number of parts and the weight of the printed board storage unit are reduced. Can be achieved.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show the structure of a printed board storage unit according to an embodiment of the present invention, and FIG. 3 shows a state in which a plurality of printed board storage units are stacked to form a locker. It is a thing.

First, referring to FIGS. 1 and 2, the printed board storage unit 30 has left and right side plates 31, 32. Side plate 3
Inward bends at the upper and lower ends and rear ends of 1,32
31a, 31b, 31c, 32a, 32b, 32c are formed. Inside the one side plate 31, front and rear frame attachment fittings 33, 34 fitted between the upper and lower bent portions 31a, 31b are fixed by spot welding or the like. Frame fittings 35 and 36 are fixed to the inside of the other side plate 32 in the same manner.

Between the left and right side plates 31 and 32, a front and rear enclosure frame 3 having a substantially rectangular frame shape.
7,38 can be installed. The front enclosure 37 is the upper and lower bent portions 33a, 35a and the lower bent portions of the left and right frame mounting brackets 33, 35.
It is fixed to the front frame attachment fittings 33, 35 with, for example, screws 39 (see FIG. 1) in a state of being fitted between 33b and 35b. Use the same method to attach the rear enclosure 38 to the left and right rear frame mounting brackets 3.
Fixed at 4,36.

Each side portion (bottom side portion, upper side portion, left and right side portions) of the front and rear enclosure frames 37, 38 has a substantially U-shaped cross-sectional shape,
It has a sturdy frame structure that does not easily deform. Therefore, if the front and rear surrounding frames 37, 38 are mounted between the left and right side plates 31, 32 via the frame mounting brackets 33 to 36, a sturdy housing structure can be obtained.

A single large rectangular opening on the front side of front enclosure 37
37a is formed, and an upper opening 37b and a lower opening 37c are formed on the rear surface side of the front side surrounding frame 37 at intervals. On the inner surfaces of the left and right side portions of the front side surrounding frame 37, crosspiece-shaped cross-section member 40 extending along the bridge portion 37d between the upper opening portion 37b and the lower opening portion 37c is fixed by spot welding or the like. ing.

On the other hand, a single large rectangular opening 38a is formed on the rear surface side of the rear side surrounding frame 38, and an upper opening 38b and a lower opening 38c are formed on the front side of the rear side surrounding frame 38. Are formed apart from each other. On the inner surface of the left and right side portions of the rear side surrounding frame 38, a crosspiece-shaped cross-section member 41 extending along the bridge portion 38d between the upper opening 38b and the lower opening 38c is fixed by spot welding or the like. Has been done.

A backboard 42 is attached to the rear enclosure 38 by screws 43 (see FIG. 1), and a connector 4 that faces the lower opening 38c of the rear enclosure 38 on the front surface of the backboard 42.
4 is attached, and a connector 46 that can be inserted into the connector 44 of the backboard 42 is attached to the rear end of the printed board 45.

Upper and lower guide rail members 47, 48 for guiding the printed board 45 in the front-rear direction are attached between the front and rear enclosure frames 37, 38. The upper and lower guide rail members 47, 48 having the plurality of guide rail grooves 47a, 48a can be formed by integral molding of plastic. As shown in FIG. 1, the front and rear ends of the guide rail members 47, 48 have locking projections 47b, which engage with the holes formed in the bridge portions 37d, 38d of the front and rear surrounding frames 37, 38, respectively. 48b is provided. An electromagnetic shield plate 49 having a large number of ventilation holes is attached to the lower guide rail member 48. Upper guide rail member
A similar electromagnetic shield plate can be attached to 47.

Guide grooves 37e and 40a for guiding the printed board 45 are provided at the lower opening edge portion on the front side of the front side surrounding frame 37 and the lower edge portion on the front side of the crosspiece member 40, respectively.
It is formed so as to be aligned with 47a and 48a. Printed board 4
5 is a guide rail member above and below the guide grooves 37a and 40a.
Inserted along the guide grooves 47a, 48a of 47, 48, printed board
The connector 46 at the rear end of 45 is plugged into the connector 44 of the backboard 42 for mechanical and electrical connection.

Front cover mounting brackets 50 are fixed to the front surfaces of the left and right sides of the front side surrounding frame 37 by spot welding or the like, and the front cover 51 can be screwed to the front cover mounting bracket 50 with screws 52. ing. Left and right side plates 3
For the bent parts 31c and 32c at the rear end of the 1,32 rear cover mounting bracket 5
3 is fixed by spot welding or the like, and the rear cover 54 is screwed to the rear cover mounting bracket 53 with a screw 55. Rear cover 54 and rear enclosure 37
A space for cable wiring is secured between and.

As shown in FIG. 1, the conductive rubber packing 58 is sandwiched between the holding metal fittings 56 and 57 mounted above and below the inner surface of the front cover 51 and the front surfaces of the upper and lower sides of the front side surrounding frame 37. As a result, the ground potential of the housing is made equal. Similarly, conductive rubber packing 61 is sandwiched between the holding metal fittings 59, 60 (see FIG. 2) attached to the left and right of the inner surface of the rear cover 54 and the rear surfaces of the left and right side portions of the rear side surrounding frame 38. As a result, the ground potential of the housing is made equal.

As shown in FIG. 1, on the inner surface of the front cover 51, a claw fitting 62 for locking the front cover 51 to the front side surrounding frame 37 and a front end of the printed board 45 are abutted to prevent the printed board 45 from coming off. A holding metal fitting 63 for performing the operation is provided.

As shown in FIG. 1, a cable connected to the backboard 42 is attached to the crosspiece member 41 attached to the rear side surrounding frame 38.
A cable holder 65 for holding 64 is attached. Further, holder attachment portions 31d and 32d having holes for attaching a cable holder (not shown) are formed above and below the rear portions of the left and right side plates 31 and 32, respectively.

The upper openings 37b, 38b provided in the front and rear enclosures 37, 38 are conductors for a cable that connects a connector (not shown) provided at the front end of the printed board 45 and the backboard 42. It can be used as a space.

When stacking a plurality of printed board storage units 30 as shown in FIG. 3, front and rear enclosure frames are provided as shown in FIG.
Enclosures 37 in front of and below the lower side of the unit 37 and 38,
By connecting 38 and 38 with bolts 66, the upper and lower units
30,30 can be connected and fixed to each other. The nut 67 screwed onto the bolt 66 can be attached to the upper side portions of the front and rear surrounding frames 37, 38 in advance by welding or the like.

In order to facilitate the positioning of the upper and lower units 30, 30, for example, the positioning pins 68 are attached to the upper end bent portions 31a, 32a of the left and right side plates 31, 32, and the lower end bent portions 31b of the left and right side plates 31, 32, Positioning holes 31e and 32e that can be engaged with the positioning pin 68 can be formed in the 32b.

When stacking a plurality of printed board storage units 30 to form a locker, as shown in FIG.
It is possible to provide a lower base 69 on which the lowermost unit 30 is placed and a top plate 70 for protecting the upper surface of the uppermost unit 30.

In the printed board storage unit having the above configuration, the left and right side plates 31, 32 are substantially rectangular frame-shaped front and rear surrounding frames 37,
Since they are firmly connected by the 38, it is possible to obtain a strong casing structure that can sufficiently withstand a load such as a loading load when a plurality of printed board storage units 30 are stacked, and a lateral shake such as an earthquake. Moreover, the left and right side plates 31 and 32 are printed boards 45.
Since it serves as the side plate of the shelf for housing the unit and the side plate of the casing of the unit and does not require a double structure of the side plate, it is possible to reduce the number of parts and the weight of the printed board storage unit.

Although the illustrated embodiment has been described above, the present invention is not limited to the embodiment described above, and changes may be made to the shapes of the constituent members within the scope of the invention described in the claims. You can

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the left and right side plates serve as the side plates of the shelf for housing the printed boards and the side plates of the casing of the unit, and thus do not require the double structure of the side plates. It is possible to reduce the number of parts and reduce the weight of the printed board storage unit.
Moreover, since the left and right side plates are connected to the substantially rectangular frame-shaped front and rear surrounding frames, a strong housing structure can be obtained.
It is possible to provide a strong printed board storage unit that can sufficiently withstand a lateral load such as a loading load and an earthquake when a plurality of printed board storage units are stacked.

[Brief description of drawings]

1 is a longitudinal sectional view of a printed board storage unit showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the printed board storage unit shown in FIG. 1, and FIG. 3 is a printed board shown in FIG. FIG. 4 is a perspective view showing a state in which the storage units are stacked to form a locker, and FIG. 4 is an exploded perspective view showing the structure of a conventional printed board storage unit. In the figure, 31 and 32 are side plates, 37 and 38 are surrounding frames, 42 is a backboard, 44 is a connector, 45 is a printed board, 47 and 48 are guide rail members, 51 is a front cover, and 54 is a rear cover. .

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Araki Inventor Hideo Araki 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Within Fujitsu Limited (56) References JP 57-211295 (JP, A) Actual development Sho 60-153591 (JP, U) Actually opened Sho 60-185381 (JP, U)

Claims (3)

(57) [Claims] 1. A front and rear enclosures (37, 38) having a substantially rectangular frame shape are attached between the left and right side plates (31, 32), and the rear enclosure (38) is connected to a printed board (45). A backboard (42) having a connector (44) is attached, and upper and lower guide rail members (47) for guiding the upper and lower ends of the printed board (45) in the front-rear direction between the front and rear enclosure frames (37, 38). , 48) are attached to the printed board storage unit, and the front and rear enclosures (37, 38) each have a substantially U-shaped cross section with four sides and two corresponding sides. A structure of a printed board storage unit formed by bending a thin metal plate so that the cross sections of the parts are substantially symmetrical with respect to the center of the frame and open inward from each other. 2. A rear cover (54) is attached to the rear ends of the left and right side plates (31, 32), and a space for cable wiring is formed between the rear surrounding frame (38) and the rear cover (54). The structure of the printed board storage unit according to claim 1. 3. The structure of a printed board storage unit according to claim 1, wherein a front cover (51) which comes into contact with the front ends of the left and right side plates (31, 32) is attached to the front side surrounding frame (37). .