JP3434757B2 - Shelf - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelf for accommodating a printed circuit board on which an electronic circuit is mounted, and more particularly to a structure of the shelf which can be folded during transportation.

[0002]

2. Description of the Related Art In the case where various electronic devices are composed of a printed circuit board on which an electronic circuit is mounted and a shelf (housing) for accommodating the electronic circuit, the printed circuit board is usually removed from the shelf before shipment. To be done. Further, for example, an electronic device which is supposed to be transported, such as a mobile communication base station device, takes out a printed circuit board on which an electronic circuit constituting the device is mounted from its shelf when moving, and Separately transport the shelf and the printed circuit board.

As shown in FIG. 9, the conventional shelf 1 is
It is provided with a top plate 7 and a bottom plate 8 on which printed circuit board guide portions are formed, and a side plate, and has a box shape having an opening on the front surface and is made of sheet metal. A plurality of printed boards are inserted through the front opening. The side plate is formed with a folded-back portion having a device fixing hole and an opening that constitutes a handle portion.

Further, Japanese Utility Model Publication No. 59-52691 discloses that
A foldable shelf as shown in FIG. 10 is disclosed.
In this shelf, an upper plate 7 and a lower plate 8 are provided, and two side plates are attached to both end portions of the lower plate 8 via hinges with springs. Two brackets 20 are rotatably connected to the front ends of the lower surface plate 8 on both sides. Both side plates folded are unfolded around the hinge 6, the upper plate 7 is combined with the upper end of the side plate and screwed, and the bracket 20 is screwed to the upper plate 7 and the side plate. Further, the both side plates are supported by being screwed at the rear end by a support.

[0005]

However, since the shelf 1 shown in FIG. 7 is shipped or transported in a state where the printed circuit board to be accommodated is extracted, the shelf 1 is a wasteful space having a hollow content during transportation. Becomes

The foldable shelf shown in FIG.
It is possible to fold the side plate to reduce the wasted space during transportation, but it has the following problems. That is, in this shelf 1, the depth and the height need to be substantially the same, and the height of the side plate cannot be larger than the width of the upper plate or the lower plate. Further, if the tip of the bracket projects from the top plate or the like when the shelf is folded, that part is likely to be damaged, so that the length of the bracket cannot be made longer than the depth of the top plate or the bottom plate. For this reason, it is difficult to freely set the space inside the shelf. Further, since this bracket is attached to the side surface of the bottom plate only by screws, there is a risk that the shelf may be folded and damaged during transportation.

Further, the printed circuit board guide portions formed on the upper surface plate and the lower surface plate are usually formed by forming a notch in a predetermined portion of these plates and bending this portion with respect to the plate surface. In the shelf shown in FIG. 10, since the side plates are hinged directly to both sides of the flat bottom plate, the side plates may deform and damage the printed circuit board guide portion when folded.

In view of the above problems, it is an object of the present invention to provide a shelf which can freely set the internal space shape, is easy to assemble, and is less likely to be damaged when folded and transported.

[0009]

SUMMARY OF THE INVENTION A shelf of the present invention is a shelf which has a top plate, a bottom plate and a side plate and accommodates a printed circuit board on which electronic circuits are mounted. The side plate is provided on both sides of the top plate and the bottom plate. A plurality of first side plates that are arranged on each side and are foldably connected to each other via hinge portions, and an outer side or an inner side of the shelf side face in a state in which the plurality of first side plates are extended. A second side plate attached to the second side plate, and the second side plate has an opening formed in a portion corresponding to the hinge. A printed circuit board guide portion may be formed on a top plate and a bottom plate of the shelf.

Further, in the above shelf, the plurality of first side plates may include side plates fixedly connected to the top plate and side plates fixedly connected to the bottom plate. The height of the side plate fixedly connected is preferably the same as or higher than the height of the printed circuit board guide portion. Further, the plurality of first side plates may include an even number of side plates in addition to the fixedly connected side plates.

The second side plate is screwed to the top plate and the bottom plate, and is also screwed to one or more of the plurality of first side plates.

The first side surface plate and the second side surface plate may have openings formed at predetermined one or more opposing portions.

The plurality of first side plates include a side plate connected to the top plate via a hinge and a side plate connected to the bottom plate via a hinge. In addition to this, an even number of side plates can be provided.

The shelf having such a structure can freely set the internal space shape, is easy to assemble, and is less likely to be damaged when folded and transported.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION As in the configuration example of FIG. 1, a shelf 1 of the present invention has a box shape mainly composed of sheet metal members, and has a function of guiding a printed board to a back board on the back surface. A face plate 7 and a bottom plate 8 and four side plates 2, 3, 4 and 5 connected by a hinge 6 are provided on both sides. The top plate 7 and the bottom plate 8 are provided with a printed circuit board guide portion and a plurality of holes provided to form the guide portion. The side plate is formed of a sheet metal member or a molded member. FIG. 1 shows a state of a shelf in which side plates connected by a hinge 6 are extended. The side plates 2 and 5 are lower than the side plates 3 and 4, and are fixedly connected to the top plate 7 and the bottom plate 8 by rivets or the like. The side plates are hingedly connected to each other.

FIG. 2 shows the shelf 1 shown in FIG. 1 in a folded state. The side plate 3 and the side plate 4 are bent at the hinge 6 portion connecting them, and folded inside the shelf 1. At the same time, the side plates 3, 4 rotate with respect to the side plates 2, 5 via the hinges 6, respectively. In this state, the internal space of the shelf 1 shown in FIG. 1 is reduced, and efficient transportation is possible. Also, the side plate 2,
Since 5 is fixedly connected to the top plate 7 and the bottom plate 8, respectively, the printed circuit board guide portion is not damaged or deformed even when the side plates 3 and 4 are bent.

1 and 2, a large number of holes formed in the top plate 7 and the bottom plate 8 are provided to form the printed board guide portion 17. As shown in the schematic enlarged view of FIG. 3, the printed circuit board guide portion 17 cuts a predetermined portion of the top plate 7 and the bottom plate 8 and forms a groove so that these portions are substantially perpendicular to the plate surface. To be done.

FIG. 4 is a partially enlarged view showing the arrangement of the printed board guide portion and the side plate. The height of the side plate 5 fixed to the bottom plate 8 is higher than the height of the printed circuit board guide portion 17 formed on the bottom plate 8. Therefore, the hinges 6a, 6b
The side plate 4, which is connected to the side plate 5 via, does not come into contact with the printed circuit board guide portion 17 even if it is folded, and it is damaged.
Does not deform.

FIG. 5 is a perspective view showing a structural example of the hinge 6. The hinge 6a is attached to one side plate, the hinge 6b is attached to the other side plate, and the hinges 6a and 6b are connected by a shaft. A predetermined space is formed between the side plates at the hinge portion.

When the printed circuit board is actually inserted into the shelf 1, it is unstable in the state of FIG. 1 because the side plates are only connected by the hinge 6. Therefore, during actual use, the side plate 9 is further attached to the side surface of the shelf 1. 6 and 7 show how to assemble the shelf 1.
This will be described with reference to (a) and FIG. 7 (b).

FIG. 6 is an assembled perspective view of the shelf. Side plates 2, 3, 4 and 5 on both sides of shelf 1
Are in a mutually extended state as shown in FIG. In this state, the side plate 9 is joined to the side plates 2, 3, 4 and 5 and fastened with screws 11. The screws 11 are attached to the side surfaces of the top plate 7 and the bottom plate 8 and predetermined portions of the side plates.

FIG. 7A is a side view of the side plate 9, FIG.
Similarly, (b) is a front view. An opening 12 is formed in the side plate 9 at a portion corresponding to the hinge 6 so that the side plates 2, 3, 4 and 5 and the side plate 9 can be closely attached to each other. In addition, an opening 13 is provided to be used as a handle when the shelf 1 is transported. The side plates 2, 3, 4 and 5 are also provided with openings at positions corresponding to the openings 13. The side plate 9 has other screw holes 15 for fixing the side plate and screw holes 14 for fixing to the device.
Is formed.

The side plate 9 need not have the same width as the other side plates 2, 3, 4 and 5 as shown in FIG. A shorter width may be provided if the entire shelf is of a given strength.

Further, in FIG. 6, the backboard 16 is screwed to the rear of the top plate 7 and the bottom plate 8.

FIG. 6 shows the shelf of the present invention assembled. On both side surfaces of the top plate 7 and the bottom plate 8, the side plate 9 and other side plates are tightly joined with screws. Side plate 9
The hinge 6 is arranged at the position of the opening 12 so that the side surface plates can be brought into close contact with each other. Further, the side plate is provided with an opening 13 used as a handle.

As another embodiment of the present invention, it is not a constitution in which four side plates are combined as shown in FIG. 1, but six side plates (that is, four side plates bent inward), or It is also possible to configure a large number of even side plates. Further, instead of the opening 13 provided as a handle, a convex handle can be joined to the side plate 9 from the outside. Further, the hinge 6 is in a form of being convex outward from the surfaces of the side plates 2, 3, 4 and 5, but if the structure of the hinge 6 and the mounting method are adjusted, the hinge 6 is convex inside of these side plates. Opening 12 provided in the side plate 9
Can be disused.

Contrary to FIG. 2, the side plates 3 and 4 are connected to the top plate 7,
The bottom plate 8 may be configured to be folded so as to project to the outside. In this case, the folded state of the shelf has a larger planar shape than the state of FIG. 2 and the risk of breakage increases, but the vertical direction can be somewhat reduced.

In the illustrated example, the side plate 9 is attached to the outside of the other side plates 2, 3, 4 and 5 (outside of the shelf), but it may be attached to the inside. At this time, if the hinge 6 is convex outside the side plates 2, 3, 4 and 5, it is not necessary to form the side plate 9 corresponding to the opening 12 for the hinge.

Further, an intermediate lateral plate may be provided between the top plate 7 and the bottom plate 8 to divide the shelf into two upper and lower spaces. In this case, the side plate, the hinge, and the like in the upper and lower spaces are the same as those described above. An upper and lower side plate can be fixedly connected to the side part of the horizontal plate.

In the above description, the side plates 2 and 5 are fixedly connected to the top plate 7 and the bottom plate 8, respectively. The reason for this is that when the side plates 3 and 4 are folded into the shelf 1, these side plates come into contact with the printed circuit board guide portions formed in a convex shape on the top plate 7 and the bottom plate 8 to deform them.
This is to prevent damage. Therefore, the size of the hinge portion, the height of the printed circuit board guide portion, the top plate 7
If the shape of the side surface of the bottom plate 8 and other conditions are to be adjusted, the side plates 3 and 4 to be folded into the shelf can be directly connected to the top plate 7 and the bottom plate without using the side plates 2 and 5 of the above example. It is also possible to adopt a configuration in which it is attached to 8 via a hinge. On the other hand, also in the configuration in which four side plates are used as shown in FIGS. 1 and 2, the side plates 2 and 5 can be attached to the top plate and the bottom plate via hinges. It is also possible to attach only one of the side plates 3 and 4 directly to the top plate or the bottom plate via a hinge.

[0031]

The shelf of the present invention comprises a plurality of side plates whose sides are hinged to each other. Therefore, after the internal printed circuit board is taken out, the side plate can be bent at the hinge portion and the shelf can be folded, so that a wasteful space does not occur during transportation, and it is possible to reduce packing materials and transportation costs. .

When assembling the shelf, the side plate joined by the hinge is extended, and another side plate is attached to the side face of the shelf to fix the side face, whereby the shelf can be easily assembled.

Further, the space shape in the shelf can be set relatively freely.

Further, since the side plates having a predetermined height are fixedly attached to both sides of the top plate and the bottom plate, the side plates do not deform or damage the printed circuit board guide portion during folding.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state where a side plate is extended in an example of the shelf of the present invention.

FIG. 2 is a perspective view showing a folded state of the shelf shown in FIG.

FIG. 3 is an enlarged view of a printed circuit board guide portion.

FIG. 4 is a partially enlarged view showing a folded state of the shelf.

FIG. 5 is a perspective view showing a configuration example of a hinge.

FIG. 6 is an exploded perspective view of the shelf shown in FIG.

FIG. 7A is a side view of the side plate 9, and FIG. 7B is a front view of the side plate 9.

8 is a perspective view showing a completed state of the shelf shown in FIG. 1. FIG.

FIG. 9 is a perspective view showing a configuration example of a conventional shelf.

FIG. 10 is a perspective view showing a configuration example of a conventional foldable shelf.

[Explanation of symbols]

1 shelf 2, 3, 4, 5 Side plate 6 hinges 7 Top plate 8 Bottom plate 12, 13 opening 16 backboard 17 Printed circuit board guide

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-21098 (JP, A) JP-A-4-242536 (JP, A) JP-A-7-300153 (JP, A) JP-A-5- 319432 (JP, A) JP 7-300130 (JP, A) Actual opening 6-7290 (JP, U) Actual opening 63-107926 (JP, U) Registered utility model 3008772 (JP, U) (58) ) Fields surveyed (Int.Cl. ⁷ , DB name) H05K 7/14 B65D 6/18

Claims (10)

(57) [Claims] 1. A shelf for accommodating a printed circuit board on which an electronic circuit is mounted, comprising: a top plate, a bottom plate, and a side plate, and a plurality of the side plates are arranged on both sides of the shelf, and they are hinged to each other. A plurality of first side plates that are foldably connected and a second side plate that is attached to the outside or the inside of the side surface of the shelf in a state where the plurality of first side plates are extended ; The side plate is
A shelf characterized in that an opening is formed in a portion corresponding to the hinge . 2. The shelf according to claim 1, wherein printed board guide portions are formed on the top plate and the bottom plate. 3. The shelf according to claim 1, wherein the plurality of first side plates include a side plate fixedly connected to the top plate and a side plate fixedly connected to the bottom plate. 4. The height of the side plate fixedly connected to the top plate and the height of the side plate fixedly connected to the bottom plate are higher than the heights of the printed circuit board guide portions formed on the top plate and the bottom plate, respectively. The shelf according to claim 3, wherein the shelf is 5. The shelf according to claim 2, wherein the plurality of first side plates include an even number of side plates in addition to the side plates fixedly connected to the top plate and the side plates fixedly connected to the bottom plate. 6. The shelf according to claim 1, wherein the second side plate is screwed to the top plate and the bottom plate. 7. The shelf according to claim 1, wherein the second side plate is screwed to one or more of the plurality of first side plates. 8. The first side plate and the second side plate
Has an opening in one or more predetermined corresponding portions
The shelf according to Item 1. 9. The plurality of first side plates are the top plates.
Hinges to the side plate and the bottom plate that are connected via a hinge to
The shell according to claim 1, further comprising a side plate connected through the side plate.
Huh. 10. The plurality of first side plates are the upper surface.
Hinge to the side plate and the bottom plate that are connected to the plate via hinges.
Side plate to connect via an even number of side plates
The shelf according to claim 9, further comprising: