JP2710018B2 - Wiring duct support structure on floor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for supporting a wiring duct on a floor in which a plurality of joists are arranged on a base surface and a plurality of floor panels are supported on the joists.

[0002]

2. Description of the Related Art A double floor using a joist for supporting a floor panel has conventionally been used only as a floor, but recently, a floor base surface supporting the joist and a floor panel supported on the joist have been used. In some cases, the space below the floor is used as a wiring space so that the wiring is not exposed on the floor surface.

On the other hand, there is already known a wiring duct whose upper surface is opened and closed by a lid and which is embedded in slab concrete or post-cast concrete on the floor to form a wiring path so that the wiring is not exposed on the floor surface. Have been.

[0004]

When the underfloor space of the joist double floor is used as it is as the wiring space as in the former case, the underfloor space can be effectively used, and the wiring is not exposed and the aesthetics and safety can be improved. However, it has the advantage that it is advantageous in terms of surface area, but on the other hand, wiring tends to be messed up and down in the underfloor space, and it takes time to open and close the floor panel for additional wiring and maintenance. Problem.

[0005] Such problems are all solved in the case of forming wiring paths using wiring ducts as in the latter case. However, conventional wiring ducts are embedded and integrated in slab concrete or post-cast concrete on the floor. The burial work is relatively complicated and cumbersome, and when burying ducts in an existing building, floor concrete requires “hanging work” and significant floor renovation work is required. There is another problem.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wiring duct support structure on a floor, which can solve the above-mentioned problems of the related art at once.

[0007]

According to a first aspect of the present invention, a plurality of joists having a substantially rectangular cross section are provided on a base surface, and a plurality of floor panels are supported on the joists. in bed so as to constitute a duct body and the lid and good Ri cable duct for closing the opening openably having an opening in an upper surface, a lower surface of a central part of the bottom wall of the duct body, roots
Forming an engagement groove portion extending along the longitudinal direction of the thick portion;
The wiring da on the joists with a top of the joists is fitted into the engagement groove
And fix the wiring duct on the top surface.
And characterized in that formed as flush with the upper surface of the floor panels which is adjacent to the duct, also According to a second aspect of the invention, in addition to the feature, on both sides of the front Symbol duct lower body, that An overhang extending outward is integrally provided, the upper surface of the overhang supports the side edge of the floor panel adjacent to the duct body, and the undersurface of the overhang has a base. An engaging portion capable of engaging with an upper end portion of the auxiliary leg erected on the surface is integrally formed.

[0008]

According to the above structure of the present invention, a wiring duct under the floor is constructed by mounting and fixing a wiring duct whose upper surface can be opened and closed by a lid on the joist, so that the wiring is placed on the floor surface. Not only is it not exposed, which is advantageous in terms of aesthetics and safety, but also in the case of additional wiring or maintenance, the duct cover that can be easily opened and closed can be opened to easily perform wiring work and maintenance work. If a new wiring duct is to be installed in an existing building, or if ducts are to be added or tracks are to be changed , install at a desired height.
Mounting and fixing the cable duct and floor panels on joists that location fixed
And can easily respond.

[0009] The recessed in the center bottom surface of the bottom wall of or duct body
The cross section of the engagement groove is extended along the longitudinal direction of the joist.
By fitting the upper part of the rectangular joists, the relative positioning between the wiring ducts and joists can be easily performed, yet can be formed as much as possible deep except joists corresponding portion of cable duct.

Further, according to the second aspect of the present invention,
The floor panel adjacent to the wiring duct can be directly supported by the wiring duct, and the supporting strength is enhanced by the auxiliary legs. The positioning of the auxiliary leg can be easily performed by the engagement between the engaging portion on the lower surface of the overhanging portion and the upper end of the auxiliary leg.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic overall plan view showing a state in which a floor panel is partially removed from a floor in which the present invention is implemented. FIG.
3 is an enlarged perspective view of a main portion showing a supporting structure of a joist and a wiring duct, and FIG. 4 is a sectional view of FIG.
FIG. 5 is an enlarged perspective view of a main part of the cross-shaped cross wiring duct as viewed from the arrow -4.

First, in FIG. 1, a floor wiring device A extending vertically and horizontally along the floor surface is provided on a floor F in a room, and the floor wiring devices A are provided with a plurality of floor wiring devices arranged in tandem with each other. A wiring duct D and a cross wiring duct D ′ (cross-shaped in the illustrated example) that connects the wiring duct rows in a T-shape, cross-shape, or L-shape when viewed from above, are configured in combination. D and D 'form a predetermined wiring path extending vertically and horizontally on the floor F.

[0013] the floor F, the horizontal base surface f _B formed by a slab of concrete or the like, the support legs unit U to be described later
The steel joists N are vertically and horizontally supported via a plurality of floor panels P and floor wiring devices A.
Are placed and supported.

Next, the support structure of the joist N will be described with reference to FIGS. Each joist N is steel is constituted by forming the cross section substantially rectangular of and along the base surface f _B of the floor F and extends long in a straight line. On the base surface f _B, at intervals in the longitudinal direction of the joist N has a plurality of support legs unit U is arranged, joists N is detachably bridged connected thereto supporting leg units on U.

[0015] Each supporting leg unit U includes a base plate 1 which is fixed on the base surface f _B, the paper in the longitudinal direction (FIGS. 2 and 4 of the respective up integrally on the base plate 1 joist N A pair of main support legs 2, 2 offset from each other in the direction orthogonal to
A support plate 4 connected laterally between the upper portions of the two main support legs 2 and 2, and a support plate 3 made of a cushioning material such as rubber which is joined on the support plate 4 and directly mounts the joist N on the upper surface. When,
The support plate 4 includes a metal plate fixing band 5 that bends and locks both ends into engagement holes 4a formed on both right and left sides of the support plate 4 and presses a joist N on the support plate 3 from above. On both left and right sides of the support plate 4, a pair of left and right holding pieces 4 b and 4 c that sandwich the joist N from the left and right are respectively formed integrally, and the two holding pieces 4 b and 4 c are spaced from each other in the longitudinal direction of the joist N. And the fixed band 5 is located in the middle.

The support plate 4 has an insertion hole (not shown) through which each main support leg 2 is inserted, and upper and lower screws which are respectively screwed into screw portions engraved on the outer peripheral surface of each main support leg 2. It is sandwiched between a pair of nuts 6 and 7, and the height of each support plate 4 can be arbitrarily adjusted by adjusting the screwing positions of the nuts 6 and 7. When the joist N is installed, first, the joist N is placed on each of the support plates 4 of the plurality of support leg units U arranged at intervals along the planned installation position. The joists N are fixed to the support plates 4, and in this state, the heights of the joists N on the support plates 4 are adjusted by appropriately rotating the nuts 6, 7 of the support leg units U. Then glue the base plate 1 of each support leg units U, be fixed by a suitable fixing means anchor such as the base surface f _B of the floor F, the desired high on the base surface f _B the joists N by the support legs unit U It can be installed and fixed at the position.

As shown in FIG. 1, the plurality of joists N are disposed at appropriate positions on the floor F with a space therebetween, and most of the joists N cooperate with each other. FIG.
A floor panel P is placed and supported on both sides as shown in FIG.
If necessary, fix to joist N upper wall with bolts B. In this case, between the upper surface of the joist N and the lower surface of the floor panel P, a sheet plate 12 made of a cushion material such as rubber having substantially the same thickness as the fixed band 5 is interposed.

Some of the joists N have the wiring duct D
Are mounted and fixed. Next, the supporting structure of the wiring duct D will be specifically described. As shown in FIG. 2, each wiring duct D is formed in a channel shape having an opening 8 a on the upper surface and extends in the longitudinal direction of the joist N, and closes the opening 8 a of the duct body 8 so that it can be opened and closed. It is more configuration and the lid 9, the duct main body 8 by a partition wall 10 erected from the bottom wall central portion, a first wiring path L ₁ for housing a power supply line, housing a telephone line or the signal line It is partitioned into a second wiring path L ₂ for.

At the center of the bottom wall of the duct body 8, a relatively wide ridge 11 which is upwardly convex and is formed integrally, and corresponds to the ridge 11 in the bottom wall of the duct body 8.
Is formed on the lower surface central portion, the engagement groove 8b that extends along the joist longitudinal upper joists N is fitted by presence of clearance. Also, between the upper surface of the joist N and the bottom surface of the engaging groove 8b,
A seat plate 12 made of a cushion material such as rubber having substantially the same thickness as the fixed band 5 is interposed. Wherein from the upper side of the raised portion 11, the mounting bolts B ₁ for fixing the duct body 8 to the floor joists N is screwed into the upper wall of the raised portion 11 and the joist N through the seat plate 12.

A pair of left and right overhangs 13 extending substantially horizontally outward from the left and right sides of the duct body 8 are integrally connected to each other. , Via a sheet-like cushion material 14 adhered to the upper surface,
A side edge of the floor panel P adjacent to the duct body 8 is placed and supported. Further, a sheet-like cushion material 15 is also adhered to the lower surface of each overhang portion 13, and a pair of parallel locking projections 13 i, 13 o are provided on the lower surface of each overhang portion 13 on both sides of the lower cushion material 15. Are formed integrally,
The locking projections 13i and 13o cooperate with each other to form an engaging portion of the present invention, and can engage with an upper end portion of the auxiliary leg S described below.

The auxiliary legs S are arranged at a distance in the longitudinal direction of the wiring duct D, and a pair of right and left auxiliary legs S are sandwiched between the joists N. As each auxiliary leg S includes a base plate 16 which is fixed on the base surface f _B of the floor F, a hollow cylindrical lower leg 17 is integrally erected on the base plate 16, the lower legs 17 And an upper leg 18 having a screw shaft portion 18a inserted from above into the inside, and the screw shaft portion 1 of the upper leg 18 is formed.
At the upper end of 8a, a flat head 18b capable of engaging with the lower surface of the overhang portion 13 is integrally connected. Further, the screw shaft portion 18a
Is screwed with an adjustment nut 19 whose lower end is supported by the upper end of the lower leg 17. When the nut 19 is rotated, the relative position between the nut 19 and the screw shaft portion 18 a in the axial direction is adjusted. Changes, the upper leg 18 moves up and down with respect to the lower leg 17,
Thereby, the supporting height of the upper leg 18 can be adjusted arbitrarily.

On the peripheral wall of the adjusting nut 19, a screw rod 20 for preventing rotation of the nut 19 with respect to the screw shaft 18a is screwed in a horizontal direction. To fix the screwing position of the adjusting nut 19 to the screw shaft portion 18a. At the outer end of the screw rod 20, an engagement hole 20a for engaging a tool is formed.

Further, on the upper peripheral wall of the lower leg 17, the upper leg 1 is provided.
8 height fixing bolts B ₂ for fixing the adjusted height relative to the lower leg 17 is screwed to the lateral, upper leg tip of the bolt B ₂ is pressed against the screw shaft portion 18a outer periphery of the upper leg 18 The support height of 18 is fixed. Also this is the shaft of the height fixing bolt B ₂ engaged locking nut 21 is threaded, by tightening the nut 21, the height fixing bolt B ₂ can be reliably prevented from loosening by vibration.

The lid 9 is formed in a rectangular shape as viewed from above so as to cover the opening 8a of the duct main body 8, and its left and right side edges have locking steps formed on the inner surfaces of the left and right side walls of the duct main body 8. A locking arm portion 9a which is fitted and locked to the portion 8c, and which can be elastically engaged with the inner surfaces of the left and right side walls of the duct body 8 is integrally formed on the lower surface of the lid 9 so as to protrude. . A central portion of the lid 9 in the width direction is provided at an upper end portion of the partition wall 10 of the duct main body 8.
Supported through.

As shown in FIG. 5, the intersecting wiring ducts D 'are formed by different wiring paths of the wiring ducts D intersecting each other (that is, the first wiring path L1 of _one wiring duct and the first wiring path L1 of the other wiring duct). 2 wiring path L ₂ ; the second wiring path L ₂ of one wiring duct and the first wiring path L ₁ of the other wiring duct) have a three-dimensional intersection 23 for three-dimensionally crossing each other at the center, viewed from above. A cross-shaped cross duct main body 8 'and a cross-shaped cross lid 9' for closing the upper opening 8a 'of the cross duct main body 8'.

The cross duct main body 8 'integrally has an extended duct portion 24 extending in all directions from a central crossroad 23 at the center thereof. The cross-sectional shape of each extension duct portion 24 is basically the same as that of the duct body 8 of the wiring duct D, and the first and second wiring paths L
_1, L ₂ partition wall 10 for partitioning the 'is erected. The left and right overhanging portions 13 ', 13' of each extension duct portion 24 have upper ends of a pair of left and right auxiliary legs S having the same configuration as the auxiliary legs S used to support the wiring duct D described above. (i.e. flat head 18b) is engaged, thereby duct portion 24 exiting each extending is supported on a base surface f _B via the auxiliary leg S. The central bottom wall of the cross duct body 8 ', across the sound-absorbing rubber plate 25 on the upper end of the bed base surface f _B height erected on adjustable posts 26 is abutting the support.

The upper surface f _D of the wiring duct D, i.e. the upper surface of the duct main body 8 left and right side walls and the lid 9, and the upper surface f _P of the floor panel P, be formed on the upper surface flush with the crossing wiring duct D ' , Forming a flat floor. A floor finishing material C such as a carpet, a cork material, or a P tile is joined to each of the upper surfaces of the wiring ducts D and D 'and the floor panel P.

Next, the operation of the above embodiment will be described.
Upon raising construction floor F, the equipment multiple joists N in the procedure as described above using the supporting leg unit U to the base surface f on _B to and a predetermined height position vertically and horizontally along the floor .

Next, a plurality of wiring ducts D are placed on some of the joists N.
Move on to work for placing and fixing in a tandem state. In this operation, first, the duct main body 8 of each wiring duct D is placed on the joist N so that the engaging groove 8b of the bottom wall thereof is fitted to the upper part of the joist N, and then the mounting bolt B ₁ is attached. To fix the duct body 8 to the joist N. Thereafter, the upper end of the auxiliary leg S (ie, the flat head 18b at the upper end of the upper leg 17) is engaged with the engaging portions (ie, both locking projections 13i, 13o) on the lower surface of the protruding portion 13 on both sides of the duct body 8. The auxiliary leg S
The supporting height of the upper leg 18 is adjusted and fixed, and the base plate 16 is fixed to the base surface f of the floor F by an adhesive or an anchor.
Fix on _B.

Such an operation is sequentially performed for each of the wiring ducts D, and the ends of the adjacent wiring ducts D are connected to each other by abutting each other. At the intersection of the wiring duct D,
The center bottom wall of the above-mentioned cross wiring duct D 'is
In addition, the left and right projecting portions 13 ', 13' of each extending duct portion 24 extending in four directions from the central portion thereof are
And the ends of the respective extended duct portions 24 are connected to the ends of the corresponding wiring ducts D by abutment.

After the wiring ducts D and the cross wiring ducts D 'have been set in this way, the floor panels P are sequentially laid. In this case, the floor panel P adjacent to the wiring duct D or the cross wiring duct D 'has one side edge, as shown in FIG.
4 while the other side edges are shown in FIG.
Is fixed on the joist N as shown in FIG. Further, the other floor panels P are mounted and fixed on the pair of parallel joists N, as shown in FIG. Thus floor panel P
A floor surface is formed by the upper surfaces of the wiring ducts D and D ', and a floor finishing material C is attached thereon. Incidentally, the floor finishing material C may be individually and in advance adhered to the floor panel P and the upper surfaces of the lids 9 and 9 'of the wiring ducts D and D'.

If the wiring paths L ₁ and L ₂ under the floor are constructed by using the wiring duct D whose upper surface can be opened and closed by the lid 9 as described above, the wiring is not exposed on the floor surface and the appearance and the safety are improved. Of course, it is advantageous in the case of additional wiring and maintenance, etc.
By opening the duct lids 9 and 9 'which can be easily opened and closed, wiring work and maintenance work can be easily performed. Moreover, since such a wiring duct D is mounted and fixed on the joist N, even when a new wiring duct is installed in an existing building or when a duct is added or a track is changed, the joist N and the wiring are not connected. It is possible to easily cope with the so-called lifting work in which the ducts D, D 'and the floor panel P are laid appropriately and accordingly, the working time is shortened and the cost is reduced. Further, since the joists N which are conventionally provided for supporting the floor panel are also used as the support means of the wiring duct D, the duct supporting structure can be simplified accordingly.

In particular, by engaging the engaging groove 8b formed in the lower surface of the duct body 8 with the upper part of the joist N,
The relative positioning between the wiring duct D and the joist N is easy, and the wiring duct D can be formed as deep as possible in portions other than the portion corresponding to the joist, so that the effective capacity of the wiring duct D is as wide as possible. Can be.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various design changes can be made within the scope of the present invention. For example, one or three or more wiring paths may be formed in the wiring duct, and a wiring connection device such as a movable outlet may be installed in a part of the wiring path as needed. In addition, the lid of the wiring duct may be provided with a communication port with a small lid, a movable outlet, or the like for taking out the wiring in the wiring path into the room as needed.

[0035]

As described above, according to the invention of each claim,
Place the wiring duct that can be opened and closed with a lid on the joist
Since the wiring path is constructed under the floor, the wiring is not exposed on the floor surface, which is advantageous in terms of aesthetics and safety, and it is easy to open and close for additional wiring and maintenance. Wiring and maintenance work can be easily performed by opening a simple duct lid, and when a new wiring duct is to be installed in an existing building or when ducts are to be added or tracks are to be changed, the desired height position Wiring ducts and floor panels can be placed and fixed on the joists installed and fixed on the floor, making it easy to cope with, and can greatly contribute to shortening of work time and cost reduction. Also, a generally rectangular cross section conventionally provided to support floor panels
Since the joist of the shape can also be used as the means for supporting the wiring duct, the duct support structure can be simplified accordingly.

[0036] recessed in the center bottom surface of the bottom wall of or duct body
The cross section of the engagement groove is extended along the longitudinal direction of the joist.
By fitting the upper part of the rectangular joists, the relative positioning between the wiring ducts and joists can be easily performed, yet the effective wiring duct can be formed as much as possible deep except joists corresponding partial volume Can be increased.

Further, according to the second aspect of the present invention, on both sides of the duct main body, overhangs extending outward are integrally provided continuously, and the upper surface of the overhang is adjacent to the duct main body. An engaging portion capable of engaging with the upper end portion of the auxiliary leg erected on the base surface is integrally formed on the lower surface of the overhang portion, supporting the side edge portion of the floor panel to be connected. The floor panel adjacent to the duct can be directly supported by the wiring duct, and the supporting strength can be increased by the auxiliary legs. Further, since the positioning of the auxiliary leg can be easily performed by the engagement between the engaging portion on the lower surface of the overhanging portion and the upper end of the auxiliary leg, it is possible to contribute to an improvement in the efficiency of the installation work of the auxiliary leg.

[Brief description of the drawings]

FIG. 1 is a schematic overall plan view showing a state in which a floor panel of a floor embodying the present invention is partially removed.

FIG. 2 is an enlarged sectional view taken on line 2-2 of FIG. 1;

FIG. 3 is an enlarged perspective view of a main part showing a supporting structure of a joist and a wiring duct.

FIG. 4 is an enlarged sectional view taken along arrow 4-4 in FIG. 1;

FIG. 5 is an enlarged perspective view of a main part of a cross-shaped cross wiring duct.

[Explanation of symbols]

D .................. wiring ducts F .................. first, second wiring path N .................. joist S .................. as floor L _1, L ₂ ...... raceway top 8 .................. duct body 8a ............... opening of the upper surface f _P ............... floor panels of the auxiliary leg f _B ............... base surface f _D ............... wiring duct 8b engagement groove 9 lid 13 projecting portion 13i locking projection 13o as an engagement portion 13o as an engagement portion Locking projection 18b Flat head as upper end

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-150590 (JP, A) JP-A-60-195261 (JP, A) JP-A-64-29565 (JP, A) JP-A 62-195565 196007 (JP, A) JP-A-60-195260 (JP, A) JP-A-62-196008 (JP, A) JP-A-63-257408 (JP, A) JP-A-2-290115 (JP, A) 50-82159 (JP, U)

Claims (2)

(57) [Claims] 1. A base surface (f _B) substantially rectangular cross section of the double <br/> number of joists on (N) disposed, supporting their joists (N) a plurality of floor panels on (P) in bed so as to constitute the opening on the upper surface of the opening and the duct body (8) having (8a) cable duct Ri by a lid for closing openably and (8a) (9) (D), the The center of the bottom wall of the duct body (8)
Engaging groove extending along the longitudinal direction of the joist (N)
Part (8b) is formed, and a joist is formed in the engagement groove part (8b).
The wiring Da upper part is fitted onto the joists (N) of the (N)
Transfected with (D) as well as mounting and fixing, comprising a top surface (f _D) of the cable duct (D), the upper surface (f _P) and flush of the floor panels is adjacent to the duct (D) (P) A support structure for a wiring duct on a floor, characterized by being formed as described above. On both sides of 2. A front Symbol duct body (8), continuously provided Zhang portion extending to the outer side (13) integrally on the upper surface of the projecting portion (13), the duct body (8) Supports the side edge of the floor panel (P) adjacent to (8), and also supports the overhanging portion (1).
The lower surface of 3), the base surface (upper end portion (18b) and the engaging portion can engage the f _B) an auxiliary leg erected on (S) (13
The support structure for a wiring duct on a floor according to claim 1 , wherein i, 13o) is formed integrally.