JP4027385B2 - Cabinet cable rack structure - Google Patents

Description

  The present invention relates to a cable rack structure for a cabinet.

  In modern communication equipment systems, which are in the advanced information era, the cabinet structure has become much lighter, thinner, and smaller, the signal transmission speed has become extremely high, and a large number of optical fiber cables are being used for connecting devices. is there. At the same time, there are various cable laying methods that connect between cabinets (communication equipment systems), such as housing cables in a cable ladder suspended from the ceiling, or raising the floor to form a so-called raised floor. The method of accommodating cables between the floor and the like is extremely diverse. Furthermore, due to the improvement of services, manufacturers are urgently required to deliver (install) cabinets early.

  Under such circumstances, it is possible to easily cope with a floor installation structure of a cabinet that can easily and surely install a cabinet containing electronic devices such as communication equipment more quickly than ever, and a diversified floor structure. The emergence of a cable rack structure and a structure that can safely and reliably accommodate optical fiber cables is desired.

  Therefore, in the present invention, it is an object of the present invention to realize such various demanded rational and economical cabinet structures.

C present invention to solve the aforementioned problem, a cable rack structure cabinet cable racks, which are clamped by detachably in both upper and lower surfaces of the cabinet, cable racks, open upwardly It is made of a member with a predetermined wall thickness having a channel cross section, has a notch for introducing a cable at its end, and can function as a raised foot for a raised floor when attached to the lower surface of the cabinet. Preferably, the cable rack is attached so that a substantially U-shaped reinforcing member is inscribed therein , and reinforces the cable rack itself .

  Preferably, the cable rack is provided with a support member capable of supporting the surface member of the raised floor.

Hereinafter, a plurality of embodiments of a cabinet structure according to the present invention will be described with reference to the drawings.
(1) Cabinet floor installation structure As shown in FIG. 3, the cabinet C that houses electronic devices such as communication equipment is a so-called anchor bolt (not shown) for fixing the cabinet in order to prevent (falling) such as an earthquake. And an insulating plate 11 for electrical insulation is interposed between the bottom surface of the cabinet and the floor surface. As shown in FIG. 1, the rectangular insulating plate 11 of this embodiment has, for example, four round holes 13 for anchor bolts at predetermined positions, and each has an L-shaped slot (removed portion). ) In an appropriate combination and have two cutout portions A and B that can be cut out and are configured to discontinuously surround the outer periphery, and also have rectangular cutout portions 15 on both sides. The larger cutout portion A is fixed to the floor surface with screws 17 in order to temporarily fix or temporarily restrain the plurality of insulating plates 11 arranged on the floor surface from both sides as will be described later. , Have two holes 19 for it. On the other hand, the smaller cutout B is fitted into a rectangular hole formed by just joining the notched portions 15 of the adjacent insulating plates 11 to prevent relative movement between the two insulating plates.

  The operation of fixing the cabinet C on the floor using the insulating plate 11 as a template will be briefly described below with reference to FIG. Conventionally, it is a place where the fixing hole position of the cabinet is marked on the floor surface using a tape measure or a scale, but since such a method is inefficient and it is difficult to ensure accuracy, Since it is necessary to prepare a large number of dedicated templates separately, it is considerably expensive and cumbersome in terms of management. Therefore, in this embodiment, the insulating plate 11 is skillfully used as a template. Specifically, first, the number of insulating plates 11 corresponding to the number of cabinets C to be installed is prepared, and the necessary cutout portions A and B are cut from them with a cutter tool (not shown) or the like. Separately, the insulating plates 11 (three in the figure) are arranged on the floor so as to correspond to the actual installation layout of the cabinet C. At that time, as described above, the smaller cut-out portion B is fitted into a rectangular hole formed by just combining the notch portions 15 of the adjacent insulating plates 11 so as to prevent relative movement between the insulating plates. The larger cutout portion A is partially fitted into the cutout portion 15 of the insulating plate 11.

  Next, the two larger cutouts A located on both sides of the entire insulating plate are fixed to the floor surface with two screws 17 respectively. Thereby, all the insulating plates 11 are temporarily fixed to the floor surface. That is, there is no displacement between the insulating plates and the entire insulating plate does not move. Therefore, after that, the four round holes 13 of each insulating plate 11 are mechanically drilled on the floor surface by the drill (tool) D using the guide (template) for drilling. Then, the corresponding cabinet C is placed on each insulating plate 11, and necessary anchor bolts are driven in to fix the cabinet C together with the insulating plate 11 to the floor (FIG. 3).

As described above, according to the insulating plate 11 of the present embodiment having the template function, troublesome marking (scratching) work of the hole position with respect to the floor surface is unnecessary, and a plurality of dedicated templates are separately provided. There is no need to prepare, and drilling work can be carried out inexpensively, easily and reliably with high accuracy, and the efficiency and efficiency of the overall work can be significantly improved.
(2) Cabinet Cable Rack Structure The cable rack 31 of this embodiment shown in FIG. 4 literally functions as a cable rack when attached to the upper part of the cabinet C housing electronic devices such as communication equipment, When attached to the lower part of the cabinet C, it functions as a foot.

  The cable rack 31 is made of a steel or plastic resin member having a predetermined thickness, such as a lip groove steel, having a C channel cross-section opened upward. R is provided. The width and depth dimensions of the cable rack 31 are substantially the same as the dimensions of the upper and lower surfaces of the cabinet. Although the height of the cable rack 31 depends on the amount of cables to be accommodated, it basically corresponds to the standard height for raising the raised floor. On the upper surface of the cable rack, holes corresponding to the mounting holes on the lower surface of the cabinet body (and the cover) are drilled. On the lower surface of the cable rack, holes corresponding to the mounting holes on the upper surface of the cabinet and for fixing to the floor surface are provided. The mounting holes are drilled, but the holes on the upper and lower surfaces of the cable rack can be shared. At both ends (or one end) of the cable rack 31, notch portions 33 for introducing cables are provided so as to correspond to the cable-passing openings E (FIGS. 5 and 6) normally formed on both sides of the upper and lower surfaces of the cabinet. It is symmetrically cut (only one is shown).

  Here, with reference to FIG. 5, the case where the cable rack 31 of FIG. 4 is attached to the upper part of a cabinet is demonstrated. The cable rack 31 is fixed to the upper surface of the cabinet C fixed on the floor by anchor bolts by screwing the holes on the lower surface of the cable rack with the screw holes on the upper surface of the cabinet. A ceiling plate 35 is fixed to the upper surface of the cable rack with screws. Thereby, the illustrated cable rack 31 can function as a cable rack for connection cables between cabinets. In addition, as shown in FIG. 6, the cable rack itself can be reinforced by attaching a small substantially U-shaped reinforcing member 39 to the four corners inside the cable rack.

  Next, with reference to FIG. 7, the case where the cable rack 31 of FIG. 4 is attached to the lower part of a cabinet and used as a foot is demonstrated. A hole corresponding to the screw hole on the lower surface of the cable rack 31 is formed on the floor surface, and the cable rack 31 is fixed by an anchor bolt (not shown). At this time, the leveling (levelness) of the cable rack itself is adjusted by fitting a thin plate or the like downward. A cabinet C is placed on the cable rack 31 and fixed with screws. In a region (passage or the like) around the cabinet C (cable rack 31), a panel-like floor member 43 is laid down via a normal floor raising member (pedestal) 41 to constitute a so-called raised floor RF. A ceiling plate 35 is fixed to the upper surface of the cabinet with screws. As described above, the illustrated cable rack 31 allows various cables to pass through. However, the cable rack 31 functions substantially as a pedestal for a raised floor, and can be constructed more robustly than the conventional pedestal 41. Earthquake resistance can be improved. In addition, as shown in FIG. 8, the durability (seismic resistance) of the cable rack itself is further improved by providing the substantially U-shaped reinforcing member 39 of FIG. 6 in the cable rack by changing the mounting angle by 90 degrees. Can be made. In addition, as shown in FIG. 9, a support member 47 having an L-shaped cross section is attached to one or both side surfaces of the cable rack 31, and the floor member 43 of the raised floor RF is supported by the support member 47. it can.

As described above, the cabinet C and the cable rack 31 are separated from each other, and the cable rack 31 is configured to function as an upper cable rack or a lower pedestal as required. It can correspond to. That is, for example, even if it is necessary to accommodate the cable at the top of the cabinet at the request of the customer, or even if the raised floor is configured on the floor and the cable must be accommodated between the floor and the raised floor A combination of a cabinet of one specification (without a cable rack) and the cable rack of this embodiment can be used immediately. Therefore, the troublesomeness and complexity of manufacturing a plurality of types of conventional cabinets, procuring dedicated parts, and prior confirmation of the cable accommodation type can be solved brilliantly. In addition, when the cable rack is used as a pedestal, the conventional floor raising member can be made unnecessary, and the seismic performance of the cabinet can be improved.
(3) Cabinet Fiber Optic Cable Housing Structure One embodiment of the fiber optic cable housing structure according to the present invention is provided on the front surface of the cabinet C on the side where the printed wiring board P is taken out, as shown in FIG. The cable duct 61 is curved on both sides. The front side of the cable duct 61 is opened to improve workability, and a flat cover 63 is detachably screwed to the opening (FIG. 11). On the upper surface side of the cable duct 61, guide portions 65 shaped like a circular pipe vertically divided in half are arranged side by side with an opening portion 67 in between, and the guide portions 65 on both sides are large horizontally. Is formed. Each of these guide portions 65 is configured such that the curvature of the curved surface portion has a value equal to or larger than the minimum allowable bending radius (usually around 30 mm) of the optical fiber cable OP. The cable duct 61, the guide portion 65, the cover 63, etc. can be formed of plastic resin. In this case, for example, the connection between the cable duct 61 and the cover 63 is, for example, male and female fitting without using screws. Can be done.

  A plurality of optical fiber cables OP (which may be accompanied by various electric wires) descending from the upper side on both sides of the cabinet C proceed into the duct while bending along the curved surfaces of the large guide portions 65 on both sides of the cable duct 61, Following the curved surface of the predetermined guide portion, it rises upward from the opening 67 and is connected to the corresponding printed wiring board P by a connector.

  As described above, according to the present embodiment, the minimum allowable bending radius of the optical fiber cable OP can be ensured safely and surely while the entire structure can be made compact by effectively utilizing the space. Transmission quality can be improved. Further, the wiring of the optical fiber cable OP becomes very simple, and it is possible to reduce the number of cable wiring steps and improve the efficiency. In addition, the optical fiber cable OP can be easily restrained (held) at a fixed position by the guide section without using a binder or tie string (strings) as in the prior art, greatly reducing the number of man-hours for the operator. Is possible.

  Next, a modified example of the optical fiber cable housing structure (cable duct) will be described. As an example, as shown in FIG. 12, a C-channel cable duct 61a having a round curved surface on both front and rear sides (only one side in the figure) and opened upward, and a circle arranged so as to cross it. A configuration including a columnar guide portion 65a is conceivable. Each of these guide portions 65a is configured such that the curvature of the outer surface thereof has a value equal to or greater than the minimum bending radius of the optical fiber cable OP. Further, since each guide portion 65a is fixed by screwing through a long hole provided in the front surface and the rear surface of the duct main body, the mounting position thereof can be changed. Therefore, for example, the optical fiber cable OP can be appropriately pressed by the bottom surface in the cable duct and the guide portion 65a to restrain the movement.

  As another modification of the cable duct, as shown in FIG. 13, a channel-shaped cable duct 61b similar to that of FIG. 12 and a member obtained by vertically dividing a circular pipe are separated in parallel. A guide portion 65b connected by an L member is screwed through a long hole provided in the front surface of the cable duct 61b and fixed in a cantilever manner. The curvature of the circular pipe-shaped portion of the guide portion 65b is configured in the same manner as in the modified example. Further, in this modified example, the optical fiber cable OP can be pressed down as a whole by changing the mounting position of the guide portion 65b once, which is reasonable.

  As described above, according to the present invention, a cabinet containing electronic devices such as communication equipment can be installed in a floor installation structure of a cabinet that can be installed more quickly and easily and reliably, or a diversified floor structure. It is possible to realize a cable rack structure that can be easily accommodated and a structure that can accommodate optical fiber cables safely, reliably, and efficiently.

It is a perspective view of the insulating board of one Example of this invention. It is a perspective view which shows the process of laying the insulating board of FIG. It is a perspective view of the cabinet which spread | laid the insulating board of the Example. It is a perspective view which shows the cable rack of another Example of this invention. It is a perspective view which shows the structure which attaches a cable rack to a cabinet upper part. It is a perspective view which shows the structure which attached the reinforcement member to the structure of FIG. It is a perspective view which shows the structure which attaches a cable rack to a cabinet lower part. It is a principal part perspective view which shows the structure which attached the reinforcement member to the structure of FIG. It is a principal part perspective view which shows the structure which attached the supporting member to the structure of FIG. It is a perspective view which shows the optical fiber cable accommodating structure of the other Example of this invention. It is a disassembled perspective view of the optical fiber cable accommodation structure of an Example. It is a principal part perspective view of the example of a change of an optical fiber cable accommodation structure. It is a principal part perspective view of another example of a change of an optical fiber cable accommodation structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Insulating board 15 Notch 31 Cable rack 33 Notch 35 Ceiling board 39 Reinforcement member 41 Floor raising member 43 Floor member 47 Support member 61, 61a, 61b Cable duct 63 Cover 65, 65a, 65b Guide part 67 Opening part A, B Cutout C Cabinet D Drill OP Optical fiber cable P Printed wiring board R Reinforcement part RF Raised floor

Claims (3)

A cable rack structure of a cabinet in which a cable rack is detachably attached to both the upper surface and the lower surface of the cabinet, and the cable rack is composed of a member having a predetermined thickness having a C channel cross section opened upward , A cable rack structure characterized by having a notch for introducing a cable at an end and functioning as a foot for a raised floor when attached to the lower surface of a cabinet. The cable rack structure according to claim 1 , wherein the cable rack is attached so that a substantially U-shaped reinforcing member is inscribed therein , and the cable rack itself is reinforced .   The cable rack structure according to claim 1, wherein the cable rack is provided with a support member capable of supporting a surface member of the raised floor.

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