JPH071971B2 - Floor wiring construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Objectives of the Invention (1) Field of Industrial Application The present invention relates to a floor wiring construction method, and more particularly, a step of fixing a plurality of supporting structural members on a foundation structure at intervals. , A step of placing the wiring accommodating duct on each supporting structure member and placing a holding member on the wiring accommodating duct, standing on each supporting structural member on both sides in the longitudinal direction of the wiring accommodating duct The step of fixing the wiring storage duct on each supporting structure member by screwing each pressing bolt existing in the pressing member to the formed nut member, performing the concrete placing work on the foundation structure to form the floor and Regarding improvement of a floor wiring construction method using a step of burying a wiring storage duct on the floor with its upper surface exposed, a step of finishing the floor surface flush with the upper surface of the wiring storage duct, and a step of removing a holding member after hardening of concrete .

(2) Conventional Technology As the seed floor wiring construction method, the present applicant has previously proposed the method disclosed in the specification of Japanese Patent Application No. 62-323495 and the drawings.

(3) Problems to be Solved by the Invention As described above, the reason why the wiring storage duct is fixed to each support structure member by using the pressing member is that the wiring storage duct floats up, hangs down, or is level during the concrete pouring work. Although it is to prevent the position from being displaced within the interior, each presser bolt protrudes above the floor surface during the finishing work on the floor surface, and the presser member protrudes from the wiring storage duct toward the presser bolt side. There is a problem that the workability of finishing the floor surface is poor between the bolt and the upper edge of the wiring storage duct.

An object of the present invention is to provide the floor wiring construction method capable of solving the above problems.

B. Structure of the Invention (1) Means for Solving the Problems The present invention is a process of fixing a plurality of supporting structure members on a foundation structure at intervals, and a wiring accommodating duct on each supporting structure member. A step of placing and holding a pressing member on the wiring accommodating duct; on nut members standing on both sides in the longitudinal direction of the wiring accommodating duct and erected on each supporting structure member,
A step of screwing each holding bolt existing in the holding member to fix the wiring storage duct on each supporting structure member, concrete placing work is performed on the foundation structure to form a floor, and the floor is formed on the floor. A floor wiring construction method using a step of burying the wiring storage duct with its upper surface exposed, a step of finishing the floor surface flush with the upper surface of the wiring storage duct, and a step of removing the holding member after the concrete has hardened. Between each nut member upper end portion and the wiring storage duct upper end edge portion, a plurality of floor surface structures embedded in the floor and forming a part of the floor surface are provided before the concrete placing work. It is characterized in that it is held by a nut member.

(2) Operation According to the above-mentioned method, since a part of the floor surface is formed by the floor surface structure between each of the holding bolts and the upper edge portion of the wiring accommodating duct, it is not necessary to finish the portion.

(3) Example No. 1, the floor wiring structure shown in FIG. 2, a plurality of longitudinal beams 1 ₁ made of H-beams are arranged in parallel spaced from each other, also orthogonal their longitudinal beam 1 ₁ a plurality of cross beams 1 ₂ consisting of H-shaped steel so as to extend in a direction are disposed in parallel spaced from each other. Kakutatehari to 1 ₁ and Kakuyokohari 1 ₂ over a plurality of deck plate 2 is laid continuously interconnected, concrete is pouring the floor 3 is formed thereon deck plate 2. Cross beam 1 ₂ extend parallel wiring housing duct 4, is embedded in the floor 3 at phase Tonariru both lateral beams 1 ₂ between the upper surface of the duct 4 has a floor 5 and flush.

The wiring accommodating duct 4 is composed of a substantially U-shaped duct body 6 having an open top and a lid 7 for opening and closing the top of the duct body 6, and the lid 7 is attached to the duct body 6 by a stopper 8. Fixed.

In the wiring housing duct 4, by the four separators 91 _to 93 ₄ provided upright on the bottom of the duct body 6, in this order toward the right side from the second left side of the drawing, the power line communication line 10 ₁ for housing the power line , Power line connection line 10 ₂ , telephone line communication line 10 ₃ , telephone
A signal line connection line 10 ₄ and a signal line through line 10 ₅ are defined. The power supply line connection line 10 ₂ is for connecting and extracting the power supply line housed in the power supply line communication line 10 ₁ .
The separator 9 ₁ through hole 11 for exchanging power line is formed, a rubber grommet 12 is attached to the through hole 11. Make a cut in the thin part of the grommet 12 for the power supply line
Inserted in 11. The telephone / signal line connecting line 10 ₄ is a telephone line and a signal line connecting line 1 stored in the telephone line connecting line 10 _3.
0 ₅ is intended for connection or retrieve the stored signal lines, the through-hole of the separator 9 _3, 9 ₄ grommet 12 is provided in the same manner as described above.

The heights of the separators 9 _{1 to} 9 ₄ are set so that a gap is formed between the separators 9 _{1 to} 9 ₄ and the lid 7 in consideration of dimensional tolerance. A cushioning member 13 made of an elastic material is attached to the upper ends of the separators 9 _{1 to} 9 ₄ , respectively, whereby the lid 7 bends due to walking on the lid 7 or the like, and a collision noise when the collision occurs with the separators 9 _{1 to} 9 ₄ Occurrence is prevented.

Wire receiving duct 4, Kakutatehari 1 _1, after being secured to the crossbeam 1 ₂ and the deck plate 2 from consisting basic structure on B, and which is embedded in the floor 3 by concrete設作industry, then The fixing structure of the wiring storage duct 4 will be described.

In the third to sixth view, on each longitudinal beam 1 ₁ located on the laying route L of the wiring housing duct 4 (FIG. 3), the wiring housing duct 4
A pair of first support bolts 14 _{1 with a} spacing wider than the width of
Is erected. At the lower end head of each first support bolt 14 ₁ ,
As the bolt 14 mounting bracket 15 so that _one can rotate is attached, the mounting bracket 15 is fixed directly by welding on the longitudinal beam 1 ₁ through the non-connecting portion of the deck plate 2. Both first support bolts 14 _1, and a nut 17 existing on both ends of the reverse channel shaped first duct holder 16 ₁ is screwed, thus the first support bolts 14 ₁ the tip of which projects from ₁ first duct holder 16 By engaging a tool in the engaging groove 18 and rotating the bolt 14 ₁ thereof, the first duct holder 16 ₁ can be moved up and down. A nut 19 is fixed to the inside of each nut mounting portion of the first duct holder 16 ₁ so as to be screwed from above.

Each of the first support bolts 14 _1, mounting bracket 15, the first duct holder 16 ₁ and the nut 17 constitute a support structure S.

As shown in Figs. 1, 2 and 7 to 10, both vertical beams 1 ₁ adjacent to _{each other}
Between adjacent Ryoyokohari 1 ₂ between the pair of wiring housing duct support member 20 extending over the deck plate 2 are bridged by spaced from each other.

9, as best shown in FIG. 10, each support member 20 includes a lower main member 21 which is secured directly by welding on both crossbeam 1 ₂ the ends through the non-connecting portion of the deck plate 2, the lower main Material 21
It is composed of an upper main member 22 arranged in parallel with and supporting the wiring storage duct 4, and a pair of rod-like leg members 23 connecting the upper and lower main members 22, 21 at a plurality of points. In the example shown,
The lower main material 21 is composed of a pair of long steel rods b ₁ arranged in parallel at a distance from each other, and a plurality of short steel rods b ₂ welded at equal intervals between both steel rods b ₁ . Further, the upper main material 22 is formed by welding a pair of long steel rods b ₂ parallel to each other in a close state, and further, the leg member 23 is a zigzag shaped steel rod,
Each top portion t of each leg member 23 is welded to one steel rod b ₃ of the upper main member 22 and each trough portion v is welded to _one steel rod b ₁ of the lower main member 21.

On the upper main member 22 of each support member 20, a pair of second support bolts 14 ₂ are provided upright at positions spaced apart from the width of the wiring accommodating duct 4. Each the second lower end of the support bolt 14 _2, the bolts 14 ₂ similar mounting bracket 24 and the like can be rotated is mounted, the mounting bracket 24 is fixed by welding to the upper main member 22. Both second support bolts 14 ₂
The nuts 25 present at both ends of the reverse channel type second duct holder 16 ₂ are screwed together, and therefore, the tool is engaged with the engaging groove 26 at the tip of the second support bolt 14 ₂ to allow the second support bolt 14 2 to be engaged. The second duct holder 16 ₂ can be moved up and down by rotating ₂ . Female screw holes 27 are formed inside the nut mounting portions of the second duct holder 16 ₂ .

The deck plate 2 upward to pass between the upper main member 22 of the second duct holder 16 ₂ and the support member 20 is a wire mesh 28 exhibition settings to prevent cracking of the concrete.

A plurality of first and second duct holders 16 arranged as described above
_The wiring accommodating duct 4 is placed on ₁ , 16 ₂ .

As clearly shown in FIG. 5, engagement grooves 29, which open upward and face each other, are formed on the lower portions of the outer surfaces of both side walls of the duct body 6 over the entire length.

In the first duct holder 16 ₁ , each of the engaging grooves 29 has a connecting fitting 3
One end of 0 is engaged, and the other end is fixed by nut members 31 standing on the first duct holder 16 ₁ on both sides in the longitudinal direction of the wiring accommodating duct 4. That is, the nut member 31 has a small-diameter screw shaft portion 32 protruding downward, and the small-diameter screw shaft portion 32 penetrates the connecting fitting 30 and is screwed to the nut 19.

The nut member 31 has a female screw hole 33 that opens upward.

As clearly shown in FIG. 7, in the second duct holder 16 ₂ , the connecting fitting 30 is fixed by screwing a small screw 34 ₁ penetrating the other end side into the female screw hole 27.

In addition, the bottom wall of the duct body 6 is the first and second duct holders 1
6 ₁ and 16 ₂ are connected to each other by a plurality of machine screws 34 ₂ .

As described above, the wiring storage duct 4 is attached to the first and second duct holders.
16 ₁ , 16 ₂ After connecting on top of each, first and second support bolts 14 ₁ , 1
Rotate 4 ₂ as described above to rotate the 1st and 2nd duct holders 1
The wiring accommodating duct 4 is moved up and down via 6 ₁ and 16 _{2 so} that the height position of the wiring accommodating duct 4 is determined.

As clearly shown in FIGS. 5, 11, and 12, each nut member 31
The floor surface structure 35 made of synthetic resin such as vinyl chloride resin.
Is retained. The floor structure 35 is a substantially rectangular flat plate portion.
36, and a cylindrical portion 37 protrudingly provided in the substantially central portion of the lower surface thereof,
The tubular portion 37 is fitted and fixed to the upper portion of the nut member 31, and one side edge of the flat plate portion 36 comes into close contact with the upper end edge portion e of the wiring storage duct 4. A bolt insertion hole 38 communicating with the tubular portion 37 is formed in the flat plate portion 36.

As clearly shown in FIG. 5, the upper surface of the lid 7 of the wiring accommodating duct 4 is covered with the curing paper 39, and the curing material 40 is attached to both ends of the lid 7 so as to press both ends of the curing paper 39 in the width direction. . The curing paper 39 has a function of preventing the lid 7 from being soiled by the concrete scattered on the lid 7, and the curing material 40 also has a function as a ruler when the concrete is troweled.

With the curing paper 39 and the curing material 40 thus arranged,
A pressing member 41 is placed on the upper surface of the wiring accommodating duct 4. The holding member 41 includes a plurality of, in the illustrated example, four square pipe members 42 extending in the longitudinal direction of the wiring accommodating duct 4, and a large number of channel members 43 fitted to the square pipe members 42 from above. Each of the two square pipe members 42 is disposed near both ends of the wiring accommodating duct 4 in the width direction, and is also a channel member.
Both ends of 43 project to both sides of the wiring storage duct 4.

In the first duct holder 16 ₁ , the holding bolts 44 penetrating both ends of the channel member 43 are screwed to the nut members 31, so that the wiring accommodating duct 4 is held in the first duct holder 16 ₁ via the holding member 41. It is pressed and fixed to.

As clearly shown in FIGS. 3, 4, and 13, a plurality of first duct holders 16 ₁ are mutually provided so as to avoid both second duct holders 16 ₂ between adjacent vertical beams 11 _1. It is arranged on the lower surface side of the wiring accommodating duct 4 at intervals. Each first duct holder 16
₁ has the same configuration except that is not supported by the first support bolts 14 _1, thus having the connecting fitting 30, the nut member 31, the floor structure 35 or the like.

Then, similarly to the above, each holding bolt 44 penetrating each channel member 43 is screwed to each nut member 31, whereby the wiring housing duct 4 is suspended and fixed to the holding member 41.

As described above, the wiring storage duct 4 is pressed and suspended and fixed, and the concrete is placed on the deck plate 2 to form the floor 3, and the wiring storage duct 4 is formed on the floor 3.
Is buried with its upper surface exposed.

The pressing member 41 prevents the wiring accommodating duct 4 from rising, hanging down, and being displaced in the horizontal plane during the concrete placing work.

Further, in each support member 20, a large number of concrete flow ports 45 are defined by the upper and lower main members 22 and 21 and each rod-shaped leg member 23, and each leg member 23 is rod-shaped and blocks the flow of concrete. Since the action is small, the concrete flow smoothly passes through each support member 20.

After that, the floor surface 5 is finished to be flush with the upper surface of the wiring storage duct 4. However, a part of the floor surface 5 between the upper end portion of each nut member 31 and the upper end edge e of the wiring storage duct 4 is the floor 3
Since it is constituted by the flat plate portion 36 of each floor surface structure 35 buried in, it is not necessary to perform the finishing work for that portion.

Therefore, even if each holding bolt 44 projects above the floor surface 5 and each channel member 43 projects from the wiring storage duct 4, they do not interfere with the finishing workability of the floor surface 5.

After the concrete has hardened, loosen each holding bolt 44,
The holding member 41 is removed from the wiring storage duct 4.

As clearly shown in FIG. 14, a blind plug 46 made of synthetic resin such as vinyl chloride resin reaching the female screw hole 33 of the nut member 31 is attached to the bolt insertion hole 38 of each floor structure 35.

C. Effect of the Invention According to the present invention, it is not necessary to perform a finishing work on a part of the floor surface between each holding bolt and the upper edge of the wiring storage duct, and thus the finishing work efficiency of the floor surface can be improved. A floor wiring construction method can be provided.

[Brief description of drawings]

1 and 2 show a floor wiring structure, and FIG. 1 is a plan view and a second view.
Fig. 1 is a sectional view taken along line II-II of Fig. 1, Figs. 3 to 14 show a fixing structure of a wiring storage duct in a floor wiring construction method, Fig. 3 is a plan view, and Fig. 4 is Fig. 3 IV-IV. 5 is a sectional view taken along line V-V in FIG. 3, and FIG. 6 is a sectional view taken along line VI-VI in FIG.
FIG. 7 is a sectional view taken along line VII-VII of FIG. 3, and FIG. 8 is FIG.
Fig. 9 is a sectional view taken along line VIII, Fig. 9 is a sectional view taken along line IX-IX of Fig. 3, Fig. 10 is an exploded perspective view showing the relationship between the support member and the second support bolt, and Fig. 11 is an enlarged view of the main part of Fig. 5. Figure, Figure 12 is Figure 11 XII
FIG. 13 is a sectional view taken along the line XIII-XIII in FIG. 3, and FIG. 14 is an enlarged view of an essential part corresponding to FIG. B ... Foundation structure, S ... Support structural member, e ... Upper edge, 3 ... Floor, 4 ... Wiring storage duct, 5 ... Floor surface, 31
...... Nut member, 35 …… Floor surface structure, 41 …… Pressing member,
44 ...... Presser bolt

Claims (1)

[Claims] 1. A step of fixing a plurality of supporting structure members on a foundation structure at a distance from each other, a wiring accommodating duct is placed on each supporting structure member, and a pressing member is mounted on the wiring accommodating duct. The step of placing the wiring accommodating duct by screwing each holding bolt existing in the pressing member to a nut member standing on each supporting structure member on both sides in the longitudinal direction of the wiring accommodating duct. Fixing on each support structure member, concrete placing work on the foundation structure to form a floor and burying the wiring storage duct on the floor with its upper surface exposed, A floor wiring construction method using a step of finishing flush with an upper surface of the wiring storage duct, and a step of removing the pressing member after the concrete is hardened, wherein the upper end portion of each nut member and the upper end edge of the wiring storage duct are Floor wiring construction method characterized in that to hold a plurality of floor structure constituting a part of the floor surface is embedded in the floor, each nut member before the concreting work.