JPH10257653A - Underfloor wiring branch supporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a cable from damages and bending at the crossing part of wiring passages, in a free access floor. SOLUTION: A plurality of positioning rods 20 are erected on the surface of an approximately cross-shaped base plate, which overhangs in 4 directions in the crossing part of the wiring passages of a free access floor. The parts of a cable before and behind the curved part of the cable are positioned by overhang position, which positions rods 20a on the upper surface of an overhang part 10a, and the middle part of the curved part of the cable is positioned by central position, which positions rods 20b on the upper surface of a central part 10b. The movement of the cable in the crossing part is suppressed by the positioning rods, and the cable is protected from damages and bendings.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an office building,
The present invention relates to a branch support for underfloor wiring used for underfloor wiring employed in factories and the like.

[0002]

2. Description of the Related Art In offices and offices where office automation has advanced, such as offices such as office buildings and factories in recent years, as shown in FIG. 12 and FIG. And a wiring passage 53 surrounded by the side surface of the floor panel 52 and the base floor surface 51 is formed between the floor panels 52, and the floor panel 52 is formed so as to cover the wiring passage 53. 5
In many cases, a so-called free access floor, which is a so-called free access floor, in which a carpet 54 with a reinforcing plate (see FIG. 13) is laid on the floor 2 to form a flat floor surface.

In such a free access floor, since all cables C such as a power cable, a telephone, a facsimile, and a communication cable of a computer are routed in a wiring passage 53 under the floor, there is no need to route a large number of wires on the floor, and work is not required. It has the advantage that it is good and does not impair the aesthetic appearance.

[0004]

However, on such a free access floor, when the cable C is laid,
In particular, the cable C is not fixed at the intersection of the wiring passages 53 but moves in the vertical or horizontal direction, making it difficult to lay the cable stably. In such an unstable situation, it is necessary to route a plurality of cables C to the wiring passage 53 and wire them to a predetermined position. The wires may be damaged by rubbing, or may be wired in a state of being bent at an acute angle, and the transmission characteristics may be deteriorated due to aging.

Accordingly, an object of the present invention is to stabilize the laying of cables at intersections of wiring paths in underfloor wiring on the above-mentioned free access floor,
An object of the present invention is to provide a branch support for underfloor wiring that can effectively prevent a cable from being damaged or bent.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a plurality of floor panels having a predetermined thickness provided on a base floor surface, and a side face of the floor panel and the base are provided between the floor panels. An underfloor wiring branch support used at an intersection of the wiring passages in a double floor having a wiring passage surrounded by a floor surface, the branch support being installed on the base floor at the intersection of the wiring passages. A thin base plate having a substantially cross shape in a plan view formed with a projecting portion projecting into a wiring path in four directions and a central portion connecting the projecting portions, and a positioning rod that stands on the upper surface of the base plate and positions a cable. It is provided with.

Here, the positioning rods are erected at equal intervals on the upper surface of the projecting portion of the base plate with a predetermined dimension set based on the diameter of the cable, and position the front and rear of the bent portion of the cable. Positioning rod, on the upper surface of the central portion of the base plate,
And center positioning rods arranged at an interval larger than the interval between the overhanging positioning rods.

Preferably, the positioning rod is made of a soft member that can be cut using a predetermined general-purpose cutting instrument.

Alternatively, the positioning rod is detachably attached to the base plate.

[0010] More preferably, a stopper is formed at an upper end of the positioning rod to prevent the cable from coming off upward.

[0011]

Embodiments will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the branch support 1 for underfloor wiring includes a base floor surface 31 such as a slab.
When a plurality of floor panels 32 (members shown in a satin pattern in the figure) having a predetermined thickness are laid, a free access of a double floor structure formed by the side surfaces of the floor panels 32 and the base floor surface 31 It is installed at the intersection of the wiring passages 33 on the floor, and includes a substantially cross-shaped base plate 10 and a plurality of positioning rods 20 erected on the upper surface of the base plate 10.

Here, the floor panel 32 as a premise is shown in FIG.
Parts 32a to 32 that can be separated for each fixed section
c are connected by a connecting member (not shown), and among these parts 32a to 32c, a wiring passage 33 is formed.
The side wall part 32b forming the side wall and the corner part 32c forming the corner of the wiring passage 33 have a step 35 for fitting a plate (not shown) into the top surface and closing the lid.

The base plate 10 is formed of a synthetic resin plate which is considerably thinner than the floor panel 32, and corresponds to a cross-shaped intersection surrounded by the side wall parts 32b and the corner parts 32c of the floor panel 32. As described above, each of the projections 10a is formed in a substantially cross shape with each projection 10a projecting in all directions and a central portion 10b connecting the projections 10a. As a result, the base plate 10 is
In the state where it is installed at the intersection of No. 3, each overhang 10a
Are positioned in contact with the respective side walls of the floor panel 32 (32b, 32c).

As shown in FIG. 3, the positioning rods 20 include three overhanging positioning rods 20a which are linearly arranged on the upper surface of the distal end of each overhang 10a of the base plate 10; Central part 1 of 10
0b, nine central positioning rods 20b which are arranged upright so as to be arranged in a 3 × 3 matrix.

Here, the overhanging positioning rods 20a are spaced apart from the sides of the overhanging portions 10a by a first predetermined dimension δ1 or more, and are similarly spaced apart from each other by a first predetermined dimension δ1. . As shown in FIG. 4, the first predetermined dimension δ1 is set to such a size that the margin is slightly larger than the diameter W of the cable C to be laid, so that the overhanging positioning rods which are adjacent to each other are provided. Only one cable C is laid between 20a and near the side of the overhang portion 10a. In the case where the cable C is a relatively thick cable (17 mm in diameter) formed by bundling a plurality of core wires inside, it is desirable to set the first predetermined dimension δ1 to about 18 mm.

On the other hand, the center positioning rods 20b are arranged at equal intervals separated from each other by a second predetermined dimension δ2 which is larger than the first predetermined dimension δ1. The reason why the second predetermined dimension δ2 is set larger than the first predetermined dimension δ1 is that the cable C is bent between the center positioning rods 20b. It is to increase.

The positioning rods 20 (20a, 20a,
20b) is a column member made of resin or the like, which is set lower than the height position of the step 35 portion of the floor panel 32 (32a to 32c) from the base floor surface 31 and is integrally formed on the upper surface of the base plate 10. It is fixed. In order to be able to cut and remove the unnecessary positioning rod 20 at any time, it is made soft enough to be easily cut using a general-purpose cutting instrument such as a cutter knife or a pinch.

A method of using the underfloor wiring branch support 1 having the above configuration will be described. First, the floor panel 3 is placed on the base floor 31.
2 (32a to 32c) is laid, and the wiring support 33 for the free access floor having the double floor structure is formed. It is placed on the base floor 31. At this time, the side of the base plate 10 is the side wall part 3 of the floor panel 32.
2b and the corner part 32c can be fitted very easily without any trouble in positioning.

Next, one cable C is inserted between a plurality of positioning rods 20 erected on the upper surface of the base plate 10.
By fitting one cable, each cable C is reliably positioned in the underfloor wiring branch support 1, that is, at the intersection of the wiring passages 33. At this time, unnecessary positioning rods 20 (20a, 20b) are cut using a general-purpose cutting instrument such as a cutter knife or a pinch.

Here, as shown particularly in FIGS. 2 and 5 to 7, the bent portion of the cable C is guided by the center positioning rod 20b so as to be in an appropriate bent state, and both ends of the bent portion of the cable C are guided. When the portion is extended and guided by the positioning rod 20a, the bent portion is not pulled even if the cable C is routed in the wiring passage 33, and the cable C is stably held in an appropriate curved state.
It is possible to prevent the cable C from moving vertically or horizontally. Therefore, it is possible to prevent the cable C from being damaged by being rubbed at the corner of the floor panel 32 at the intersection of the wiring path 33 and the cable C being wired at an acute angle and deteriorating the transmission characteristics due to aging.

When the cable C is laid straight without being curved at the intersection of the wiring passages 33,
There is no particular need to consider positioning. In this regard, since the underfloor wiring branch support 1 is configured as a member separated from the floor panel 32, if necessary, the underfloor wiring branch support 1 is omitted and the cable C is connected to the base floor surface 31.
Just lay it on top.

As described above, after the cable C is laid in a desired state, a plate (not shown) may be placed on the step 35 of the floor panel 32, and then a carpet may be laid on the upper surface.

The positioning rod 20 is located on the base plate 1.
If the cable C is detachably attached to the cable 0, various variations can be accommodated by replacing the cable C according to the thickness and the number of the cables.

For example, in the example shown in FIG.
0 is a projection 41 protruding from the upper surface of the base plate 10
, So that the projection 41 is sandwiched between two legs 42 formed on the positioning rod 20 and engaged with the positioning rod 20. A concave portion 42a is formed on the inner peripheral surface of the leg portion 42 of the positioning rod 20 so as to engage with a spherical arc-shaped convex portion 41a formed on the outer periphery of the projection portion 41. 41 is prevented from coming off. A stopper 43 is formed at the upper end of the positioning rod 20 to prevent the cable C from being pulled upward.

In the example shown in FIG. 9, the positioning rod 20 is detachably engageable with the base plate 10. Here, an engagement hole 45 is formed in a predetermined position of the base plate 10 so that the positioning rod 2
Elastically deformable engaging claw 46 integrally formed at the lower end of
Are removably engaged with the engagement holes 45 of the base plate 10. Also here, the stopper 43 formed at the upper end of the positioning rod 20 prevents the cable C from being pulled out upward.

The positioning rods 20 shown in FIG. 8 or FIG. 9 need not be provided at all the ends of the base plate 10, but may be provided at appropriate positions according to the wiring pattern.

It should be noted that the present invention is not limited to the configuration described above, and various modifications are possible. For example, all of the above-described center positioning rod 20b is omitted, and FIG.
A member limited to only the overhanging positioning rod 20a, such as 0, may be used.

In order to prevent the cable C from dropping upward, it is effective to use a positioning rod 20 having a substantially Y-shape having a wedge-shaped stopper 43 formed at the upper end as shown in FIG. It is desirable that the positioning rod 20 can also be cut using a general-purpose cutting tool or can be detachably engaged with the base plate 10.

[0029]

As described above, according to the branch support for underfloor wiring according to the first aspect of the present invention, the positioning rod is erected at least at the overhanging portion of the base plate installed at the intersection of the wiring passages. Since the positioning rod is used to support the front and rear of the bent portion of the cable, the movement of the cable during wiring can be suppressed, and therefore, the cable can be effectively prevented from being damaged or bent.

According to the branch support for underfloor wiring according to the second aspect, the positioning rods are arranged upright on the upper surface of the central portion of the base plate, so that positioning can be performed not only before and after the bent portion of the cable but also during the bending. And positioning at the intersection can be performed more reliably. In this case, since the arrangement interval of the positioning rods at the central portion is set to be larger than the interval between the positioning rods at the overhang portion, the degree of freedom such as the bending radius and the bending direction of the cable can be increased.

According to the branch support for underfloor wiring according to the third aspect, unnecessary positioning rods can be cut at any time by using a predetermined general-purpose cutting tool, so that the degree of freedom in designing cable laying is greatly increased.

According to the branch support for underfloor wiring of the fourth aspect, the positioning rod is detachably attached to the base plate. Unnecessary positioning rods can be detached from the base plate at any time and can be omitted, greatly increasing the degree of freedom in cable laying design.

According to the branch support for underfloor wiring according to the fifth aspect, the stopper at the upper end of the positioning rod can prevent the cable from dropping upward.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a branch support for underfloor wiring according to an embodiment of the present invention.

FIG. 2 is a plan view showing a use state of the above.

FIG. 3 is a perspective view showing a branch support for underfloor wiring according to one embodiment of the present invention.

FIG. 4 is a side view showing a use state of the above.

FIG. 5 is a plan view showing a use state of the above.

FIG. 6 is a plan view showing a use state of the above.

FIG. 7 is a plan view showing a use state of the above.

FIG. 8 is a partial cross-sectional side view showing another embodiment.

FIG. 9 is a partial cross-sectional side view showing another embodiment.

FIG. 10 is a plan view showing another embodiment.

FIG. 11 is a side view showing a use state in another embodiment.

FIG. 12 is a perspective view showing a background art.

FIG. 13 is a sectional view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Branch support for underfloor wiring 10 Base plate 10a Overhang part 10b Central part 20 Positioning rod 20a Overhanging positioning rod 20b Center positioning rod 31 Base floor surface 32 Floor panels 32a to 32c Parts 33 Wiring passage 35 Step 41 Projection 41a Projection 42 Leg Part 42a recess 43 stopper 45 engagement hole 46 engagement claw C cable δ1 first predetermined dimension δ2 second predetermined dimension

Claims (5)

[Claims] 1. A double floor in which a plurality of floor panels having a predetermined thickness are installed on a base floor surface and a wiring passage surrounded by the side surface of the floor panel and the base floor surface is formed between the floor panels. A branch support for underfloor wiring used at an intersection of wiring passages, the branch support being installed on the base floor at the intersection of the wiring passages, and connecting these to projecting portions projecting into four-way wiring passages. For under-floor wiring, comprising: a thin base plate having a substantially cross shape in a plan view having a central portion formed therein; and a positioning rod erected on at least an upper surface of the overhanging portion of the base plate to position the front and rear of a bent portion of the cable. Branch support. 2. A double floor in which a plurality of floor panels having a predetermined thickness are provided on a base floor surface and a wiring passage surrounded by the side surface of the floor panel and the base floor surface is formed between the floor panels. A branch support for underfloor wiring used at an intersection of wiring passages, the branch support being installed on the base floor at the intersection of the wiring passages, and connecting these to projecting portions projecting into four-way wiring passages. A thin base plate having a substantially cruciform shape in a plan view having a central portion formed therein; and a positioning rod erected on an upper surface of the base plate to position a cable, wherein the positioning rod has an upper surface of the overhang portion of the base plate. An overhanging positioning rod that is erected at equal intervals at a predetermined size set based on the diameter of the cable and positions the front and rear of the bent portion of the cable, The upper surface of the central portion of the serial base plate, the projecting positioning rod branch support for underfloor wiring, comprising the large central positioning rod arranged at intervals than the interval between. 3. The branch support for underfloor wiring according to claim 1, wherein the positioning rod is made of a flexible member that can be cut using a predetermined general-purpose cutting tool. A branch support for underfloor wiring. 4. The branch support for underfloor wiring according to claim 1 or 2, wherein the positioning rod is detachably attached to the base plate. . 5. The branch support for underfloor wiring according to claim 1, wherein a stopper is formed at an upper end of the positioning rod to prevent the cable from dropping upward. A branch support for underfloor wiring.