JP2003111255A - Cable bearer for oa floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable wiring inside an OA floor while disposing various kinds of cables in good order with an extremely low construction expense, thus facilitating the removal of unused cables while freely changing cables, and also to perform wiring so that a communication cable does not receive an electromagnetic induction disturbance from a wiring power cable. SOLUTION: Support projections 2 for supporting a plurality of cables P disposed in parallel are formed on the upper surface of a fixing base board 1. A latching body 5 detachably mounted on an upper side that covers the support projections 2 is formed. Sides of the cables P supported by the support projections 2 are pressed down by the latching body 5. The fixing base board 1 is formed into a nearly strip shape. A pair of connecting ends 3 are formed at both longitudinal ends of the fixing base board 1. The fixing base board 1 is freely connectably provided via the connecting ends 3 of the other fixing base board 1 adjacent to either or both of longitudinal ends of the fixing base board 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for accommodating a power cable, a communication cable and the like under the floor, a so-called double floor structure, a floor structure called a free access floor (hereinafter referred to as an OA floor). The present invention relates to a cable support for an OA floor that is used when the cable is installed in a room and fixed with various cables.

[0002]

2. Description of the Related Art Currently, in office buildings and the like, in order to flexibly respond to changes in the communication environment and organization, OA
Many floors are used. Inside the floor of this OA floor, power cables and communication cables are mixedly laid, and the communication environment and devices are updated, and the wiring of these various cables is changed under the floor each time the movement is made. I am able to do it.

Generally, a communication cable is easily affected by electromagnetic induction. Therefore, if the power cable and the communication cable are mixedly and randomly arranged, noise may occur in the communication cable or user equipment. Therefore, in order to avoid interference between the cables, it is necessary to arrange a wiring duct or a cable rack inside the floor and wire the power cable and the communication cable in an isolated state.

On the other hand, inside the floor of the OA floor after completion,
Since a large number of power cables and communication cables have already been routed, some cables may become obsolete when the existing cabling is changed. At this time, if a plurality of cables are mixedly arranged in a chaotic manner, the unused cables cannot be removed and are left behind. For this reason, it has been recognized that every time an unused cable is left with a change in cable wiring, the space inside the floor gradually becomes insufficient. Therefore, conventionally, a wiring duct has also been used to organize the cables in the OA floor. That is, the wiring duct installed inside the floor of the OA floor was used for the purpose of avoiding the interference of the cables described above and organizing the wiring routes of various cables.

[0005]

However, when the wiring duct is installed inside the floor of the OA floor for the above-mentioned purpose, the following new problems occur.

First, as a recent tendency, OA floor manufacturers are competing to make the storage space in the OA floor lower in order to secure a living space. Therefore, the space for accommodating the wiring duct, the cable rack, etc. is gradually narrowed, and the environment for installing the wiring duct, the cable rack, etc. is becoming severe.

Secondly, there is a problem in the work of installing the wiring duct, the cable rack and the like. To install these wiring ducts, cable racks, etc., it is necessary to cut the wiring ducts according to the wiring route and to connect each member with each other, and the branch part has a special shape. It takes time and effort to assemble using various parts. For this reason, the work process of installing the wiring duct, the cable rack, etc. takes a great deal of time and effort. In addition, when cutting the wiring duct, since residual materials and cutting chips are inevitably generated by the cutting work, it is also troublesome to dispose of them. At the present time, where environmental hygiene is important, it had a great influence as a waste material generated when the building was demolished.

Third, there is a problem in design work. In order to arrange the wiring duct, the cable rack, etc., it is necessary to design each wiring duct in advance. That is, the wiring duct, the cable rack, and the like are first selected and processed after designing the storage size according to the thickness of the cables and the number of storages. Therefore, it is necessary to design each wiring route of various cables according to the specifications, and enormous amount of labor is required until each floor of the entire building is designed.

Fourthly, there is a problem of the extension work. If the number of cables increases with the addition of OA equipment, it will be difficult to add wiring ducts and the like afterwards. As mentioned above, wiring ducts, cable racks, etc. are designed to accommodate the thickness of the cables and the number of storages, so
There is a structural limit to adapting to the addition of cables, and if the cables are added beyond the storage limit of the wiring duct, it is necessary to add the wiring duct. However, the existing wiring duct became an obstacle, and the extension work was extremely difficult. In addition, the wiring duct has a drawback that it has a substantially cylindrical shape with three or four sides surrounded,
In order to avoid exceeding the storage limit, there are cases where the cable is pulled out from the wiring duct for reasons such as removing unused cables and branching the cable from the wiring duct to change the route. Since it is necessary to provide a cut in the duct, there is a disadvantage that waste such as chips is generated at that time.

Fifth, the use of wiring ducts, cable racks, and the like significantly increases the construction cost due to the material cost. In order to install these wiring ducts and cable racks, in addition to the enormous amount of work and time required for the design work and installation work of the above-mentioned construction, a great amount of material costs for the wiring ducts and cable racks are required. However, the wiring work cost as a whole must be extremely high.

As described above, when the wiring duct is installed inside the floor of the OA floor, various problems as described above remain. Therefore, the present invention was created to solve these problems, and various cables can be arranged side by side inside the floor of an OA floor at an extremely low construction cost in an orderly manner, and cables can be changed freely and unused cables can be used. It is an object of the present invention to provide a cable support for an OA floor in which the communication cable can be easily separated, and the communication cable can be wired with a separation distance so as not to be damaged by electromagnetic induction by the power cable.

[0012]

In order to achieve the above-mentioned object, the first means of the present invention is to support and fix a cable P fixed inside a floor of a double structure and arranged in parallel inside the floor. Form an OA floor cable support. In this cable support, a fixed substrate 1 fixed to a predetermined surface inside the floor
The support protrusion 2 for supporting the plurality of cables P in parallel is provided on the upper surface of the.

The second means is to provide a retaining body 5 which is detachably mounted on the upper surface of the supporting protrusion 2 and to press the side surface of the cable P supported by the supporting protrusion 2 with the retaining body 5.

The fixed substrate 1 in the third means has a substantially strip plate shape, and a pair of connection end portions 3 are provided at both longitudinal ends of the fixed substrate 1. Then, the fixed substrates 1 are provided so as to be connectable to each other via the connection end portions 3 of the other fixed substrates 1 adjacent to either or both of the longitudinal ends of the fixed substrate 1.

The fourth means is from the fixed substrate 1 to the support projection 2
The connecting protrusion 4 is provided so as to protrude toward the tip end of the. Then, the engaging holes 4A of the other fixed substrate 1 stacked above the fixed substrate 1
In addition, the means for solving the problem is to detachably connect the connecting protrusion.

According to the cable support of the present invention, the communication cable and the power supply cable in the OA floor are supported in an orderly and flexible manner.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

The cable support of the present invention is used by fixing it inside a double structure floor called an OA floor (see FIG. 5). That is, the fixed substrate 1 of the present invention is fixed inside the floor of the double structure, and the plurality of cables P are arranged in parallel between the plurality of support protrusions 2 provided on the upper surface of the fixed substrate 1 to sandwich the cable P. Support.

The fixed substrate 1 has a substantially strip shape, and has fixing holes 1A for fixing to a predetermined surface at both longitudinal ends of the fixed substrate 1 (see FIG. 1). A fixing tool such as a concrete screw or an anchor is inserted into the fixing hole 1A to fix the fixing plate 1 on a predetermined surface. Illustrated fixed substrate 1
Has a linear shape, but may have any other shape such as a curved shape. A pair of fixing holes 1A shown in FIGS. 1 to 3 are provided at both longitudinal ends of the fixed substrate 1,
In addition, the design of the setting positions and the number of the fixing holes 1A can be freely changed, such as by providing the fixing substrate 1 at the longitudinal center. There is also a method of using an adhesive or a double-sided tape on the predetermined surface in addition to a fixture such as a concrete screw or an anchor.

Further, as shown in FIG. 3, the fixing hole 1 shown in FIG.
It is also possible to insert a fixing screw R through A and connect the fixed substrate 1 to the channel Q fixed inside the floor. in this case,
The fixing screw R is fixed to a washer S that is locked inside the channel Q.

Further, as shown in FIG. 4, a connecting groove 1B may be provided instead of the fixing hole 1A. The connecting groove 1B is formed so as to be fitted into the lip portion Q1 of the channel Q. To fix the fixed substrate 1 with the connecting groove 1B,
The attachment is completed by inserting the connecting groove 1B from the end of the channel Q and sliding the connection. In addition, channel Q
Is fixed to the floor with anchor bolts or the like.

The support protrusion 2 is a member that holds a plurality of cables P arranged in parallel and sandwiched therebetween and supports the cables P, and a plurality of the protrusions are provided on the upper surface of the fixed substrate 1 (see FIG. 1). The supporting protrusions 2 shown in the figure are formed by the supporting protrusions 2 having the same width as that of the fixed substrate 1 and arranged at equal intervals. Further, as shown in FIGS. 3 and 4, the intervals of the support protrusions 2 may be changed for each support tool. Further, a fastening portion 2A bulging in a substantially O-shaped cross section is provided at the open end of the support protrusion 2. This fastening part 2A is
It is possible to increase the strength of the support protrusions 2 and forcibly fix the cables P sandwiched between the support protrusions 2.

The connection end 3 has a structure for connecting another fixed substrate 1 to the long end of the fixed substrate 1 (see FIG. 2). The connection end portion 3 shown in the figure has a connection convex portion 3A provided on one of both longitudinal end portions of the fixed substrate 1 and a connection concave portion 3B provided on the other end. Then, one of the fixed substrates 1 or the connection convex portion 3A provided on the other fixed substrate 1 adjacent to both of them is connected to the connection concave portion 3B of the fixed substrate 1,
Alternatively, the connection concave portion 3B of another fixed substrate 1 and the fixed substrate 1
And the connection convex portion 3A are combined and connected. Further, the structure of the connection end portion 3 is not limited to the illustrated example,
Any means can be freely selected as long as it connects the adjacent fixed substrates 1 to each other.

The connecting projection 4 is a projection for detachably connecting the other fixed substrate 1 stacked above the fixed substrate 1 (FIG. 2).
reference). The connecting protrusion 4 is formed so as to protrude from the fixed substrate 1 toward the tip of the support protrusion 2. On the other hand, an engaging hole 4A with which the connecting protrusion 4 is engaged is provided on the lower surface of the fixed substrate 1,
The connection protrusion 4 is inserted into the engagement hole 4A and connected. Thus, by stacking the plurality of fixed substrates 1 on top of each other using the connecting protrusions 4, the cable P can be divided into a plurality of layers for wiring. Further, although the connecting protrusions 4 shown in the drawing are provided at both ends of the fixed substrate 1, the connecting protrusions 4 are also provided.
May be provided so as to project in the central portion of the fixed substrate 1, and the shape, structure, number, etc. of the connecting protrusions 4 can be arbitrarily changed.

The locking body 5 is a member for pressing the side surface of the cable P supported by the support protrusion 2. The locking body 5 has a strip plate shape and is mounted on the open end side of the support protrusion 2. In the locking body 5 shown in FIG. 1, both longitudinal ends are bent to provide insertion pieces 5A, and the insertion pieces 5A are inserted in the insertion recesses 5B provided at both ends of the fixed substrate 1.
Insert A and fix. The insertion piece 5A shown in the figure is the locking body 5
5A of insertion pieces are further formed so as to project from both bent end portions. Further, locking claws 5C are provided on the side surfaces of both bent ends, and engaging projections 5D that engage with the locking claws 5C are provided on the side surfaces of the support projection 2 so as to project. In this way, with the protruding insertion piece 5A inserted in the insertion recess 5B, the locking claw 5C
By engaging with the engaging protrusion 5D, an extremely strong retaining structure is provided.

In the locking body 5 shown in FIG. 2, one end of the locking body 5 and the fixed substrate 1 are integrally formed so as to be swingable.
In the illustrated locking body 5, the end provided with the locking claw 5C is opened to route the cable P, and after wiring, the open end is closed to fix the locking body 5. The illustrated engaging protrusion 5D is provided on the side surface of the connecting protrusion 4 facing the supporting protrusion 2. As described above, the configurations of the insertion piece 5A, the insertion recess 5B, the locking claw 5C, and the engagement protrusion 5D can be arbitrarily changed.

To use the cable support of the present invention, O
The fixed substrate 1 is fixed along the cable P wiring route inside the A floor. Next, the cables P are sequentially sandwiched between the supporting protrusions 2 of the fixed fixed substrate 1. After wiring the cable P, the locking body 5 is attached to the open end of the support protrusion 2 to complete the process. At this time, the number of the fixed substrates 1 can be freely increased by, for example, connecting the other fixed substrates 1 to both ends of the fixed substrate 1 in the longitudinal direction, or by stacking and connecting the other fixed substrates 1 on the fixed substrate 1. be able to.

By forming the cable support of the present invention for each color, it can be used for high power (power outlet etc.) and low power (communication cable) depending on the application.

[0029]

The present invention achieves the original object by having the above-mentioned configuration.

That is, by providing the support protrusions 2 on the upper surface of the fixed substrate 1 which is fixed to a predetermined surface, a plurality of cables P can be simply fixed by fixing the fixed substrate 1 inside the floor of the OA floor.
It is now possible to arrange and wire in order. As a result, O
Inside the floor of the A floor, various cables can be arranged and wired in an orderly manner without using a conventional wiring duct or cable rack. Therefore, the cable P can be wired at an extremely low construction cost, and
It is easy to change cables and remove unused cables.

A cable P supported by the support projection 2 is provided with a locking body 5 which is detachably mounted on the upper surface of the support projection 2.
By holding the side surface with the locking body 5, the cable P is prevented from coming out from between the support protrusions 2. Therefore, even if a load is applied to the cable P fixed to the support protrusion 2 in the wiring work of the cable P, the cable P is not likely to come off, so that the wiring work of the cable P can be performed very easily.

Further, the fixed substrate 1 is formed into a substantially strip plate shape, a pair of connection end portions 3 are provided at both longitudinal end portions of the fixed substrate 1, and one or both of the longitudinal end portions of the fixed substrate 1 are adjacent to each other. Since the fixed boards 1 are provided so as to be connectable to each other via the connection end portion 3 of the other fixed board 1, the wiring distance between the communication cable and the power supply cable can be freely separated. As described above, it is possible to wire the communication cable so as not to be damaged by the electromagnetic induction of the power cable without installing a conventional wiring duct or cable rack.

Further, another fixed substrate which is provided on the upper surface of the cable P or the upper surface of the locking body 5 which is provided with the connection protrusion 4 protruding from the fixed substrate 1 toward the tip of the support protrusion 2 and is locked to the support protrusion 2. Since 1 can be detachably connected by the connecting protrusion, it is possible to wire the cables P in multiple layers. As a result, the inside of the floor of the OA floor whose storage space is gradually narrowed can be utilized very efficiently.

As described above, according to the present invention, various cables can be arranged side by side in the floor of the OA floor at an extremely low construction cost, the cables can be freely changed, and unused cables can be easily removed. The present invention has various beneficial effects such that the communication cable can be wired so as not to be damaged by the electromagnetic induction caused by the wiring power cable.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing another embodiment of the present invention.

FIG. 3 is an exploded perspective view showing another embodiment of the present invention.

FIG. 4 is an exploded perspective view showing another embodiment of the present invention.

FIG. 5 is a perspective view of an essential part showing a wiring state using the present invention.

[Explanation of symbols]

P cable Q channel Q1 lip part R fixing screw S washer 1 Fixed board 1A Fixed hole 1B connection groove 2 Support protrusion 2A Fastening part 3 connection end 3A connection convex 3B connection recess 4 Connection protrusion 4A Engagement hole 5 Locking body 5A Insert 5B insertion recess 5C locking claw 5D engagement protrusion

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuhiro Hayashi             Marunouchi 2-7-3 Stock Association, Chiyoda-ku, Tokyo             Company Mitsubishi Estate Design Marunouchi Design Department (72) Inventor Soichi Iwase             1-4-5 Nishikanda, Chiyoda-ku, Tokyo Toko             Ki Construction Co., Ltd. (72) Inventor Masayuki Hasegawa             1-4-5 Nishikanda, Chiyoda-ku, Tokyo Toko             Ki Construction Co., Ltd. (72) Inventor Miku Tsunoda             Stock 1-3-3 Chuo, Edogawa-ku, Tokyo             Company Brest Industrial Research Institute F term (reference) 3J022 DA12 DA16 EA16 EB02 EB14                       EC02 EC14 EC22 FB03 FB06                       FB12 HA01 HA05 HB02 HB06                 5G363 AA16 BA01 DA13 DA15 DB11                       DB35

Claims (4)

[Claims] 1. A cable support for an OA floor, which is fixed inside a double-structured floor and supports and fixes cables arranged inside the floor in a parallel state, the upper surface of a fixed substrate fixed to a predetermined surface inside the floor. A cable support tool for an OA floor, characterized in that a support protrusion for supporting a plurality of cables arranged in parallel is provided on the. 2. The cable support tool for an OA floor according to claim 1, wherein a locking body that is detachably mounted is provided on an upper surface of the supporting projection, and a side surface of the cable supported by the supporting projection is pressed by the locking body. . 3. The fixed substrate has a substantially strip shape, a pair of connection end portions is provided at both longitudinal end portions of the fixed substrate, and another fixed portion adjacent to either or both of the longitudinal end portions of the fixed substrate. The cable support for an OA floor according to claim 1, wherein the fixed substrates are provided so as to be connectable to each other via the connection end portion of the substrate. 4. A connection protrusion that protrudes from the fixed substrate toward the tip of the support protrusion is provided, and the connection protrusion is detachably connected to an engagement hole of another fixed substrate that is stacked above the fixed substrate. The cable support for an OA floor according to claim 1 or 2.