JP3181819U - Floor wiring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor wiring apparatus in which a corner portion connecting adjacent side surfaces of first and second pits is composed of a panel assembly including a flat corner cutting panel portion obliquely intersecting the side surfaces of the pits. 1. When a wiring cable is drawn into the second pit between the pits, the drawing operation can be performed smoothly and easily without damaging the cable.
At least one cylindrical shape that guides the passage of the wiring cable C through the panel assembly A that constitutes a corner portion that connects adjacent side surfaces of the first and second pits P1 and P2. Guide rollers R1 and R2 are rotatably supported around a vertical axis.
[Selection] Figure 3

Description

  In the present invention, a first pit extending in a predetermined direction and a second pit branched from the first pit are recessed in the floor surface of the concrete floor, and the upper openings of these pits are opened and closed by a plurality of lids. The first and second pits relate to a floor wiring device in which a wiring cable extending between both pits is stored.

  Conventionally, in the above floor wiring apparatus, it has been known that the corner connecting the adjacent side surfaces of the first and second pits is diagonally cut to protect the wiring cable passing through the side of the corner. It has been. In this case, if the corner cut portion of the corner portion is to be molded with concrete, there is a problem that the formwork structure corresponding to the molded portion is complicated.

  Therefore, in order to eliminate the need for formwork corresponding to the corner cut portion of the corner portion and solve the above problem, a panel assembly including a flat corner cut panel body obliquely intersecting the adjacent side surfaces of the first and second pits. There has already been proposed a technique in which a corner portion is configured in three dimensions, and the back surface of the panel assembly is in close contact with and integrated with the cast concrete (see Patent Document 1 below).

Utility Model Registration No. 3139268

  If the corner portion between the first and second pits is simply cut with a flat corner cutting panel as in the prior art, there are the following problems. That is, in the work process of laying the wiring cable in the pit, when the wiring cable wound around the drum is drawn into the pit, it is adjacent to the corner cutting panel at the branch portion of the first and second pits. There is a possibility that the wiring cable interferes with and damages the edge portion between the pit side surfaces.

  Therefore, as disclosed in FIG. 8 of the above-mentioned Patent Document 1, it has been considered to use a corner-cutting panel having a circular arc cross section in which both end edges smoothly continue on the side surfaces of the first and second pits. In addition, although the damage to the wiring cable can be reduced by making the corner cut panel curved, the wiring cable is pulled in due to the frictional resistance between the curved surface of the corner cutting panel and the wiring cable. However, there is a problem that a lot of labor and labor are required and work efficiency is poor.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a floor wiring apparatus that can solve the above-described problems of the conventional structure with a simple configuration.

  In order to achieve the above object, according to the first aspect of the present invention, a first pit extending in a predetermined direction and a second pit branched from the first pit are recessed in the floor surface of the concrete floor. The upper opening portion of the first and second pits is opened and closed by a plurality of lids, and the corner portion connecting the adjacent side surfaces of the first and second pits is composed of a panel assembly including a flat corner cutting panel body that obliquely crosses these side surfaces. In the floor wiring device in which the first and second pits are configured to store the wiring cables extending between the two pits, the panel assembly passes through the corner portion of the wiring cables. At least one cylindrical guide roller to be guided is rotatably supported around a vertical axis.

  Further, the invention of claim 2 is characterized in that, in addition to the features of claim 1, the panel assembly has an upper plate portion and a lower plate portion that respectively project from the upper end and the lower end of the corner panel body to the pit space side. An upper support shaft and a lower support shaft that are arranged on the same axis line and rotatably support the upper end and the lower end of the guide roller are respectively provided on the upper plate portion and the lower plate portion. It is characterized by.

  Further, the invention of claim 3 is characterized in that, in addition to the feature of claim 2, the panel assembly includes an upper half body integrally connecting the corner cutting panel body and the upper plate portion, and an inner portion of the lower plate portion. It is divided into a lower half body in which an upright plate portion standing vertically at the end is continuously provided, and the upright plate portion and the lower portion of the corner cutting panel main body are coupled to each other in a superposed state. .

  According to a fourth aspect of the present invention, in addition to the feature of any one of the first to third aspects, two guide rollers are provided on the panel assembly at a distance from each other, and one of the guide rollers is a flat surface. The other guide rollers are arranged so as to overlap with the extension line of the side surface of the first pit in a plan view, and so as to overlap with the extension line of the side surface of the second pit in a plan view. To do.

  As described above, according to the present invention, the corner portion that connects the adjacent side surfaces of the first and second pits is composed of a panel assembly including a flat corner cutting panel body that obliquely intersects the side surfaces of the pits. In the floor wiring apparatus, at least one cylindrical guide roller for guiding the wiring cable passing through the corner portion is rotatably supported around the vertical axis in the panel assembly. When pulling into the first and second pits between the two pits, the wiring cable about to pass through the corner portion can be smoothly guided by the rotatable guide roller. Therefore, it is possible to effectively prevent the wiring cable from being damaged due to the interference with the corner edge portion, and the wiring cable can be pulled in easily and accurately, thereby improving the efficiency of the cable laying work. It is done.

  In particular, according to the invention of claim 2, a guide roller is sandwiched between an upper plate portion and a lower plate portion projecting from the upper end and lower end of the corner panel body to the pit space side, and the upper and lower ends of the roller are pivotally supported. Therefore, it is possible to use a guide roller having the same vertical width as that of the corner cutting panel body and having a long top and bottom, and the assembly work of the guide roller to the panel assembly is easy.

  In particular, according to the invention of claim 3, the panel assembly includes an upper half body in which the corner panel main body and the upper plate portion are integrally coupled, and an upright plate portion that stands vertically at the inner end of the lower plate portion. It is divided into upper and lower parts, and the upright plate part of both halves and the lower part of the corner cutting panel body are joined together in a superposed state, so that the pit construction process before concrete placement (i.e. In the mold installation process), after the installation work of the lower half and the installation of the upper half and the level adjustment work are individually performed, the upper half and the lower half can be polymerized and fixed by retrofitting. This can contribute to an improvement in the efficiency of assembly and installation work of the panel assembly.

  In particular, according to the invention of claim 4, two guide rollers are provided at a distance from each other in the panel assembly, and one of the guide rollers overlaps with an extension line of the side surface of the first pit in plan view. In addition, since the other guide rollers are arranged so as to overlap with the extension lines of the second pit side surface in plan view, both of the guide rollers project to the pit space side from the extension lines of the side surfaces of the first and second pits. The cable guide action of the guide roller can prevent the wiring cable from interfering with the edge portion between the corner cutting panel and the side surface of the pit, which is more effective in preventing damage to the cable.

Overall plan view showing a floor wiring device according to an embodiment of the present invention The enlarged perspective view which fractured | ruptured a part of 2 arrow part of FIG. Fig. 2 arrow 3 enlarged plan view Sectional view taken along line 4-4 in FIG. Exploded perspective view of panel assembly The perspective view corresponding to FIG. 2 which shows the installation aspect of the formwork before a concrete placement, a panel assembly, and a lid receiving frame 7-7 enlarged sectional view of line 7-7 FIG. 7 is an enlarged sectional view taken along line 8-8. Process explanatory drawing explaining installation process of panel assembly

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  On the floor surface F of the concrete floor, wiring pit groups for storing wiring cables C (for example, power cables and communication cables) are recessed vertically and horizontally along the wiring direction of the cables C. Openings to the floor surface F of these pit groups are closed so that they can be opened and closed by a plurality of lids T arranged in tandem along the longitudinal direction of each pit. The upper surface of each lid T is substantially flush with the floor surface F and is a part of the walking surface.

  The pit group includes a first pit P1 extending in the longitudinal direction of the room, and a plurality of second pits P2 branched from the intermediate portion of the first pit P1 at intervals. In the two pits P1 and P2, a wiring cable C can be accommodated between the pits P1 and P2. The inner surfaces of the pits P1 and P2 (that is, both side surfaces s1 and s2 and the bottom surfaces b1 and b2) are basically formed of concrete except for the corners connecting the adjacent side surfaces s1 and s2 of the pits P1 and P2. Is done.

  The first and second pits P1 and P2 have upper opening edges (that is, opposite side edges) having first and second cover receiving frames K1 and K2 on which the cover T can be engaged and placed. The pits P1 and P2 are integrally provided along the entire length. The first and second lid receiving frames K1 and K2 overhang on the pit space side above the corner portion between the first and second pits P1 and P2. The overhang portion extends in a straight line until reaching the corner end, and the corner end is cut obliquely at 45 degrees, and the cut end surfaces are abutted with each other, so that both lid receiving frames K1, K2 They are connected continuously at right angles to each other.

  The corner portion between the first and second pits P1 and P2 below the lid receiving frames K1 and K2 has a flat plate shape that obliquely intersects the adjacent side surfaces s1 and s2 of the first and second pits P1 and P2. The panel assembly A includes a corner panel main body Am as a main portion. Cylindrical guide rollers R1 and R2 for guiding the wiring cable C passing through the corner portion are provided on the panel assembly A. It is pivotally supported so that it can rotate freely.

  Two guide rollers R1 and R2 are provided on the panel assembly A at a distance from each other, and the first guide roller R1 of the guide rollers R1 and R2 overlaps with the extended line of the side surface s1 of the first pit P1 in plan view. The second guide rollers R2 are arranged so as to overlap the extended line of the side surface s2 of the second pit P2 in plan view.

  The panel assembly A has an upper plate portion 1 and a lower plate portion 2 that overhang from the upper end and the lower end of the corner cut panel body Am to the pit space side, respectively. The upper support shaft 1j and the lower support shaft 2j that rotatably support the upper and lower ends of the guide rollers R1 and R2, respectively, are arranged and protruded on the same axis.

  The upper plate portion 1 is formed in a square shape in the illustrated example, and one corner portion thereof overhangs on the pit space side. And the intermediate part lower surface of the upper-plate part 1 is fixed to the upper end edge of the corner cutting panel main body Am by welding in multiple places. In addition, a pair of L-shaped mounting flange portions 1u is fixed to the upper surface of the upper plate portion 1, and the pair of cover flanges 1u are mounted and supported on the upper plate portion 1. Removably connected to the frames K1, K2. In the illustrated example, the connecting means includes a joint fitting 4 slidably inserted and engaged in the lid receiving frames K1, K2, and the lid receiving frames K1, K2 between the joint fitting 4 and the mounting flange portion 1u. And a bolt 5 that is fastened with a to-be-latched portion interposed therebetween.

  In addition, left and right side flange portions Ams having a strip shape are integrally formed on the left and right side edges of the corner panel body Am, and the left and right side flange portions Ams are side surfaces s1, s2 of the corresponding pits P1, P2. Continuous with (concrete surface).

  Thus, the panel assembly A includes an upper half AU formed by integrally connecting the above-described corner cutting panel main body Am and the upper plate portion 1, and an upright plate that stands vertically at the inner end of the lower plate portion 2. It is divided into a lower half AL formed by connecting the portions 3 together. The upright plate portion 3 of the lower half AL and the lower portion of the corner panel body Am of the upper half AU are bonded (welded) to each other in a superposed state.

  The panel assembly A is used as a part of a mold when the first and second pits P1 and P2 are formed by casting concrete, and remains and remains in contact with the concrete after placing and solidifying the concrete. The side surfaces and the ceiling surface of the corner portions of both pits P1 and P2 are configured.

  Next, the operation of the embodiment will be described. In concrete molding of the first and second pits P1 and P2, first, a formwork assembly for molding the first and second pits P1 and P2 on the concrete slab S as shown in FIGS. While W is framed, the lid receiving frames K1 and K2 of the pits P1 and P2 are temporarily fixed and held at predetermined positions along the molding surface of the pit side surface forming mold Wa.

  In the frame process of the mold assembly W, a panel assembly A for corner cutting is constructed at a portion corresponding to the corner portion between the first and second pits P1 and P2.

  In constructing the panel assembly A, first, the support bundle 10 is fixedly erected on the concrete slab S with anchor bolts 13 and nuts 14, and the lower half AL of the panel assembly A is fixed to the concrete screw 11. (See FIGS. 9A and 9B). Next, the upper half AU of the panel assembly A is fixed to the support bundle 10 with a pair of nuts 12 while adjusting the level, and the upper support shaft 1j and the lower support shaft of the upper half AU and the lower half AL are fixed. In a state where the guide rollers R1 and R2 are sandwiched between 2j, the lower portion of the corner panel body Am of the upper half AU and the upright plate portion 3 of the lower half AL are superposed and fixed by welding (FIG. 9). (See (C) and (D)).

  The upper half AU of the panel assembly A is obtained by combining and integrating the corner-cutting panel body Am and the upper plate 1 constituting the panel assembly A in advance in a factory or the like away from the construction site. If the AU and the lower half AL are joined (welded), the panel assembly A can be efficiently assembled.

  Further, in the step of temporarily holding the lid receiving frames K1 and K2, the anchor a is driven into the concrete slab S, the clamp member 7 is fixed to the anchor a via the reinforcing bar 6, and the lid receiving frame K1 is fixed to the clamp member 7. , K2 are detachably fastened with bolts 8 at arbitrary positions along the longitudinal direction of the frames K1, K2. Then, a pair of lid receiving frames K1, K2 that overhang on the pit space side above the corner portion between the first and second pits P1, P2 are mounted on the upper half AU of the panel assembly A, particularly on the upper plate portion 1. At the same time, the overhanging portions of the lid receiving frames K1 and K2 are fastened to the mounting flange portion 1u on the upper plate portion 1 with bolts 5 and joint fittings 4. Thereafter, the left and right side flange portions Ams connected to the left and right side edges of the corner panel body Am are nailed to the pit side surface forming mold Wa, thereby fixing the panel assembly A to the mold frame Wa. Further, the lid receiving frames K1 and K2 may be nailed to the pit side surface forming mold Wa if necessary.

  Thereafter, cinder concrete 20 is placed around the formwork assembly W, and the placement is stopped when the concrete level reaches the upper ends of the lid receiving frames K1 and K2. After that, after the concrete 20 is solidified, the formwork assembly W is removed, but the panel assembly A is left without being removed. If the tip of the temporary fixing nail protrudes from the surface facing the pit space of the lid receiving frames K1 and K2 and the panel assembly A after the mold assembly W is removed, the protruding portion is appropriately cut off with a tool. To do.

  Thus, when the first and second pits P1 and P2 are formed into concrete, the cable C is protected at the corner between the side surfaces s1 and s2 of the pits P1 and P2 below the lid receiving frames K1 and K2. Therefore, it is not necessary to form the corner-cut corner with concrete because the corner-cut shape for forming the corner can be formed without difficulty using the panel assembly A. Further, even if the corner portion is cut by the panel assembly A as described above, the lid receiving frames K1 and K2 are formed in a straight line on the upper side of the panel assembly A (therefore, straight to the corner end). The lid T need not be specially cut, and the shape of the lid T is simplified as much as possible and can be arranged without difficulty in the pit openings. As a result, the overall construction period can be greatly shortened and cost can be saved as a whole.

  Further, since the panel assembly A becomes a part of a form that does not need to be removed later when the first and second pits P1 and P2 are formed by placing concrete, the first and second pits P1 and P2 are used. As a result, the formwork structure in concrete molding can be simplified as much as possible, and the formwork setting work can be simplified.

  Further, as in the present embodiment, the guide roller R1 for guiding the corner portion of the wiring cable C to the corner cutting panel assembly A that forms the corner corner portion between the first and second pits P1 and P2. , R2 is pivotally supported, when the wiring cable C is drawn into the first and second pits P1, P2 between the two pits, The guides can be smoothly guided by the rotatable guide rollers R1 and R2. As a result, it is possible to effectively prevent the wiring cable C from being damaged due to interference with the corner edge portion, and furthermore, the cable can be pulled in lightly and accurately, and the cable laying work can be performed efficiently. it can.

  In addition, since the guide rollers R1 and R2 are sandwiched between the upper plate portion 1 and the lower plate portion 2 that project from the upper end and the lower end of the corner cutting panel body Am to the pit space side, the upper and lower ends of the rollers can be pivotally supported. It is possible to use guide rollers R1 and R2 having substantially the same vertical width as that of the cut panel body Am and long in the vertical direction, and the assembly work of these rollers to the panel assembly A is easy.

  In addition, the panel assembly A includes an upper half AU in which the corner panel panel Am and the upper plate 1 are integrally coupled, and a lower half in which an upright plate 3 is connected to the inner end of the lower plate 2. Since the upright plate part 3 and the lower part of the corner panel panel Am are joined together in a polymerized state, the vertical plate part 3 and the lower part of the corner panel panel Am are joined together in the pit construction process (that is, the formwork installation process) before placing concrete. After the installation work of the lower half AL and the installation and level adjustment work of the upper half AU are individually performed, both the half AU and AL can be superposed and fixed by retrofitting. Thereby, the efficiency improvement of the assembly and installation work of the panel assembly A is achieved.

  Further, two guide rollers R1 and R2 are provided at a distance from each other in the panel assembly A, and one of the guide rollers R1 overlaps with an extension of the side surface s1 of the first pit P1 in plan view. Further, the other guide roller R2 is arranged so as to overlap with the extension line of the side surface s2 of the second pit P2 in plan view. For this reason, the corner cutting panel main body Am and the pit side surface s1 are formed by the cable guiding action of the two guide rollers R1 and R2 projecting to the pit space side from the extended line of the side surfaces s1 and s2 of the first and second pits P1 and P2. , S2 can be prevented from interfering with the wiring cable C, which is more effective in preventing damage to the cable.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims of the utility model registration. Is possible.

  For example, in the above-described embodiment, only the corner parts of the first and second pits P1 and P2 are configured by the panel assembly A, and the parts other than the corner parts are formed of concrete. Other parts, for example, the pit side surfaces s1 and s2 may be configured by a panel assembly.

  Moreover, in the said embodiment, in each panel assembly A which comprises a pit corner part, although what provided two guide rollers R1, R2 which guide the corner part passage of the cable C for wiring was shown, in this invention, The number of guide rollers installed may be one, or three or more.

A ... Panel assembly Am constituting the corner part .... Corner panel part AU ... Upper half AL ... Lower half C ... Wiring cable F. ... Floor surface P1... First pit P2... Second pit R1... First guide roller R2. .... Upper support shaft 2 ... Lower plate part 2j ... Lower support shaft 3 ... Standing plate part

Claims (4)

A first pit (P1) extending in a predetermined direction and a second pit (P2) branching from the first pit (P1) are recessed in the floor surface (F) of the concrete floor, and these pits (P1 , P2) is opened and closed by a plurality of lids (T), and the corners connecting the adjacent side surfaces (s1, s2) of the first and second pits (P1, P2) are connected to the side surfaces (s1, s2) is composed of a panel assembly (A) including a flat-cut corner panel body (Am) that obliquely intersects the first and second pits (P1, P2), and both pits (P1, P2) In the floor wiring device in which the wiring cable (C) extending between them is stored,
In the panel assembly (A), at least one cylindrical guide roller (R1, R2) for guiding the passage of the wiring cable (C) through the corner portion is rotatably supported around a vertical axis. Floor wiring apparatus characterized by being made. The panel assembly (A) has an upper plate portion (1) and a lower plate portion (2) projecting from the upper end and lower end of the corner cutting panel body (Am) to the pit space side, respectively.
On the upper plate portion (1) and the lower plate portion (2), an upper support shaft (1j) disposed on the same axis line and rotatably supporting the upper and lower ends of the guide rollers (R1, R2). The floor wiring device according to claim 1, wherein the lower support shaft and the lower support shaft are projected.   The panel assembly (A) has an upper half (AU) in which the corner cut panel body (Am) and the upper plate (1) are integrally coupled, and an inner end of the lower plate (2). It is divided into a lower half (AL) in which an upright plate portion (3) standing upright is connected, and the upright plate portion (3) and the lower portion of the corner cutting panel body (Am) are superposed with each other. The floor wiring device according to claim 2, wherein the floor wiring device is coupled by a cable. Two guide rollers (R1, R2) are provided on the panel assembly (A) at a distance from each other.
One of the guide rollers (R1) overlaps with an extension of the side surface (s1) of the first pit (P1) in plan view, and the other guide roller (R2) has the first guide roller (R2) in plan view. The floor wiring device according to any one of claims 1 to 3, wherein the floor wiring device is arranged so as to overlap with an extension line of the side surface (s2) of two pits (P2).

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