JP2004187404A - Outlet box attachment fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outlet box attachment fixture capable of accurately, easily, and promptly attaching a plurality of outlet boxes at prescribed positions on a reinforcing bar. <P>SOLUTION: A fixture body 11 is composed of a main body 12 and a bent piece 14 continuously provided through a bent portion 13 on one end side of the main body 12. A notch 15 and a setscrew screwing hole 16 are formed at the bent piece 14. A notch 17, a setscrew inserting slit 18, and a setscrew screwing slit 19 are formed at the main body 12, and the main body 12 is brought into contact with a plurality of vertical streaks 8a, one of the vertical streaks 8a is sandwiched by the notch 15 of the bent piece 14 and the notch 17 of the main body 12, a setscrew 22 is screwed into the setscrew screwing hole 16 from the setscrew inserting slit 18 to be fixed, the other end side of the main body 12 is bounded and fixed at the other vertical streaks 8a with an iron wire 23, the outlet box 1 is brought into contact with the main body 12, and the setscrew 24 is screwed into the slit 19 of the main body 12. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, when a reinforced concrete structure is built, an outlet box (also referred to as a terminal box) for wiring used for electric equipment and air conditioning equipment in the structure is driven into concrete in a formwork provided with reinforcement. The present invention relates to an outlet box mounting bracket for mounting on a reinforcing bar so as to be opened and embedded in a concrete wall to be formed.
[0002]
[Prior art]
11A and 11B show an outlet box 1 made of a synthetic resin which is generally used. FIG. 11A is a perspective view of the outlet box 1 as viewed from the front side, and FIG. 11B is a perspective view of the outlet box 1 as viewed from the back side. The outlet box 1 is composed of a rectangular frame-shaped peripheral side wall 2 and a bottom wall 3. In each of the side wall portions 2 a and the bottom wall 3 of the peripheral side wall 2, a mounting opening 4 a of a wiring hose 4 is inserted. And a plurality of screw insertion holes 6 are provided in the bottom wall 3. The drawing shows a state in which one of the hole forming portions 5 is removed, and a mounting hole 4a of the wiring hose 4 is inserted into a hole 7 formed.
[0003]
By the way, in order to attach such an outlet box 1 to a reinforcing bar arranged in a formwork, a well-known document cannot be specifically mentioned as a conventional technique. Two number lines whose length is about 3 to 4 times the length of one side of the bottom wall 3 are arranged in parallel in the vertical direction, and their central portions are fixed to the bottom wall 3 via fixing members. And, the outlet box 1 is arranged between two required horizontal bars adjacent to each other arranged on the concrete wall side, and the upper end side of each of the two wire lines is tied to the upper horizontal bar, and the lower end side thereof. To the lower horizontal streak.
[0004]
[Problems to be solved by the invention]
According to the mounting means by the wire fixed to the back side of the outlet box as described above, the work of binding the wire to the horizontal streak takes a great deal of time, and it takes a considerable amount of time to mount one outlet box. For example, if multiple outlet boxes are arranged at the same height and are to be mounted on a reinforcing bar, a step is inevitably created between the plurality of outlet boxes, and the same height position is not possible. Was difficult to arrange.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide an outlet box mounting bracket capable of easily and quickly mounting an outlet box to a reinforcing bar and accurately mounting the outlet box at a predetermined position.
[0006]
[Means for Solving the Problems]
The outlet box mounting bracket according to the first aspect of the present invention is a mounting bracket for mounting an outlet box 1 embedded in a concrete wall S of a reinforced concrete structure so as to open to a concrete wall S, the web a and flanges b, b on both sides. A metal fitting body 11 formed by a channel member formed of a horizontal elongated main body 12 and a bent piece 14 which is connected to one end of the main body 12 via a bent portion 13 and is bent with the groove portion c facing inward. The bent piece 14 is provided with a notch 15 in the flange b, and a screw threaded hole 16 is provided at the tip of the web a. The notch is formed in the flange b of the main body 12 when the bent piece 14 is bent. A notch 17 is provided at a position opposite to the slit 15, a slit 18 for screw insertion is provided at one end of the web a, and a slit extends from the slit 18 to the other end of the web a. A slit 19 for screwing is provided, and the web a of the main body 12 is brought into contact with the front surface of the plurality of vertical streaks 8a arranged on the concrete wall surface S side, and the cutout portion 15 of the bent piece 14 and the main body 12 are bent. One end of the main body 12 is fixed to the vertical streak 8 a by screwing the screw 22 from the screw insertion slit 18 into the screw screw hole 16 by sandwiching one vertical streak 8 a between the notch 17 and the other end of the main body 12. The side is fixed to another vertical streak 8 a by fixing means 23, the outlet box 1 is brought into contact with the main body 12, and the screw 24 is screwed into the screw screwing slit 19 of the main body 12.
[0007]
A second aspect of the present invention is characterized in that, in the outlet box mounting bracket according to the first aspect, the fixing means 23 is made of an iron wire that fixes the other end of the main body 12 by binding it to another vertical line 8a.
[0008]
A third aspect of the present invention is the outlet box mounting bracket according to the first or second aspect, wherein the notches 15, 17 are formed by V-cut portions formed by cutting flanges into a V-shape.
[0009]
According to a fourth aspect, in the outlet box mounting bracket according to any one of the first to third aspects, the bent piece is bent in a substantially V shape with respect to the main body.
[0010]
According to a fifth aspect of the present invention, in the outlet box mounting bracket according to any one of the first to fourth aspects, the main body 12 of the bracket main body 11 is bent at one end thereof so that a flange is cut off in a V-shape. It is characterized by the following.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
1A is a front view showing an outlet box mounting bracket 10 according to the present invention, FIG. 1B is a plan view, FIG. 1C is a rear view, and FIG. 2A is FIG. 2 is an enlarged sectional view taken along line XX of FIG. 1, and FIG. 2B is a sectional view taken along line YY of FIG. FIG. 3 is a view of the outlet box 1 mounted on the reinforcing bar 8 using the mounting bracket 10 as viewed from the front side, and FIG. 4 is a view of the mounted state viewed from the back side.
[0012]
The outlet box mounting bracket 10 according to the present invention has a bracket main body 11 formed by a channel (channel material) composed of a web a and both side flanges b, b as shown in FIGS. 1 and 2. The metal fitting body 11 includes a horizontally long main body 12 and a bent piece 14 which is integrally connected to one end of the main body 12 via a bent portion 13 and is bent with the groove c of the channel formed inward. Consists of In addition, as shown in FIGS. 3 and 4, for example, three outlet boxes 1 can be attached to the metal fitting body 11. In the bent portion 13, the flange b is cut off.
[0013]
As can be seen from FIGS. 1 (B) and 2 (A), the bent piece 14 of the metal fitting body 11 has a V-cut portion (notch portion) 15 at a position opposed to both sides of the flanges b, b of the channel material. , 15 are provided, and a screw threaded hole 16 is provided at the tip of the web a. In the main body 12 of the metal fitting body 11, V-cut portions (notches) 17, 17 are provided on the flanges b, b at positions facing the V-cut portions 15, 15 when the bent piece 14 is bent. A screw insertion slit 18 is provided at one end of the web of the main body 12, and a plurality of screw screw slits 19 of a fixed length are provided at a constant pitch from the screw insertion slit 18 to the other end of the web a. Is provided.
[0014]
As can be seen from FIGS. 1B and 2A, the main body 12 of the metal fitting body 11 has one end, that is, a screw insertion slit 18 and a screw screwing slit 19 adjacent thereto. The portions of the flanges b, b are cut off in a V-shape at positions corresponding to the gaps therebetween to form V-cut portions 20, 20, and the positions 21 (slits 18, 19) corresponding to the V-cut portions 20, 20 are formed. The web a can be bent at (an intermediate position). This position 21 (an intermediate position between the slits 18 and 19) is a bent portion.
[0015]
In this embodiment, as shown in FIG. 1B and FIG. 2A, the bent piece 14 of the metal fitting body 11 is preliminarily formed in a substantially V-shape with respect to the main body 12, for example, 25 mm. Although it is bent to the extent, it may be bent in the same place as the main body 12 without being bent in this way, and may be bent on site when used. If the bent piece 14 is extended in the same straight line as the main body 12 without bending, it is effective without bulk when the metal fitting body 11 is transported or stored.
[0016]
A method of using the outlet box mounting bracket 10 composed of the bracket main body 11 configured as described above will be described with reference to FIGS.
[0017]
First, the metal fitting main body 11 obtained by bending the bent piece 14 into a V-shape is set in a horizontal state, and the main body 12 of the metal fitting main body 11 is placed on the front row side of the reinforcing bar 8 arranged in a formwork (not shown). That is, it is brought into contact with the front surfaces of a plurality of (in this case, for example, four) vertical streaks 8a located on the side closer to the formwork (concrete wall surface side), and as shown in FIG. The bent piece 14 bent in the shape of a letter is further bent, and the V cut portions 15 and 15 on the bent piece 14 side and the V cut portions 17 and 17 on the main body 12 side are formed on both front and rear sides of one vertical streak 8a. In the state where the vertical streaks 8 a are sandwiched between the V cut portions 15, 15, 17, 17 by engaging the screws 22, the screw 22 is inserted into the screw insertion hole of the bent piece 14 from the screw insertion slit 18 on one end side of the main body 12. 16 by screwing it, one end of the bracket main body 11 is attached to the vertical streak 8a. Constant, and the state shown in FIG. 6 (A). When fixing one end of the metal fitting body 11 to the vertical stripes 8a, the fixing position (height position) is displayed on the vertical stripes 8a in black or the like.
[0018]
When one end of the metal fitting body 11 is fixed to the vertical stripes 8a in this manner, the other end of the metal fitting main body 11 is connected to the other vertical stripes 8a in FIG. ) And FIG. 7A and FIG. As the iron wire 23, in addition to a normal wire, a wire (an iron wire used for binding at the time of assembling a formwork or a scaffold, iron wires of Nos. 8 and 10) is used. Thereby, the metal fitting body 11 is fixed in a horizontal posture at a fixed height position in a state where the main body 12 is in contact with the front surfaces of the plurality of vertical bars 8a on the front row side of the reinforcing bar 8, respectively.
[0019]
In this embodiment, the other end of the metal fitting body 11 is tied to the other vertical bar 8a with the iron wire 23 and fixed. However, as this fixing means, an appropriate clamp other than the iron wire 23 is used. May be. However, if the iron wire 23 is used as the fixing means, the fixing operation becomes simple and easy.
[0020]
After fixing the metal fitting body 11 to the plurality of vertical streaks 8a in a horizontal posture and fixing it, the metal fitting body 11 is applied to the front surface of the main body 12 of the metal fitting body 11 and to the back surface of each of the plurality of outlet boxes 1 as shown in FIG. After adjusting and confirming the distance between the outlet boxes 1 in advance, the screw insertion holes 6 provided in the bottom wall 3 of each outlet box 1 as shown in FIGS. Each outlet box 1 is fixed to the main body 12 by inserting the screw 24, screwing it into the screw screwing slit 19 of the main body 12, and tightening. Thus, the mounting operation of the outlet box 1 is completed.
[0021]
As described above, the outlet box 1 is attached to the longitudinal bars 8a of the reinforcing bars 8 via the mounting brackets 10, and the front surface (opening surface) of the outlet box 1 is flush with the inner surface of the concrete formwork. However, when the front position of the attached outlet box 1 is set back with respect to the inner surface position of the formwork, there is a disadvantage that concrete enters the inside of the outlet box 1 at the time of concrete driving. It is necessary to adjust the mounting position of 1.
[0022]
Thus, in the outlet box mounting bracket 10 of the present invention, as described above, the main body 12 of the bracket main body 11 can be bent at the one end side position 21 (the middle position between the slits 18 and 19). As shown in FIG. 9, the bent piece 14 at one end of the metal fitting body 11 and the main body 12 are tightened to loosen the screw 22 fixed to the vertical stripe 8a, and the other end of the metal fitting body 11 is bound to the vertical stripe 8a. In a state where the iron wire 23 is loosened, the main body 12 is bent at the position (bent portion) 21 from the solid line drawing to the virtual line drawing at the position (bending portion) 21 to displace the main body 12 to the front side, and the outlet is provided. The appearance position of the box 1 can be easily adjusted.
[0023]
FIG. 10 shows that the outlet box 1 is attached to the vertical bar 8a of the reinforcing bar 8 by the mounting bracket 10, then concrete is poured into a predetermined concrete formwork, and the formwork is removed after the concrete is solidified. It shows a state in which it is opened on the concrete wall surface S and a state in which the wiring hose 4 connected to the outlet box 1 is embedded in the concrete.
[0024]
As described above, according to the outlet box mounting bracket 10 of the present invention, the bracket main body 11 is in a horizontal state, and the web a of the main body 12 abuts on the front surfaces of the plurality of vertical streaks 8a arranged in the front row. Then, one vertical stripe 8a is sandwiched between the V-cut portions 15, 15 of the bent piece 14 and the V-cut portions 17, 17 of the main body 12, and the bent piece is inserted from the screw insertion slit 18 on the main body 12 side. One end of the main body 12 is fixed to the vertical bar 8a by screwing the screw 22 into the screw screw hole 16 on the 14 side, and the other end of the main body 12 is tied and fixed to the other vertical bar 8a with the iron wire 23. The outlet box 1 is brought into contact with the front surface of the box 12, and the screw 24 is screwed into the screw screwing slit 19 of the main body 12 from the screw insertion hole 6 provided in the bottom wall 3 of the box 1. Via As a result, the outlet box 1 can be easily and quickly attached to the longitudinal bar 8a of the reinforcing bar 8 and accurately positioned at a predetermined position, and in particular, a plurality of outlet boxes 1 are placed at a fixed height position and at the same level. Can be mounted accurately.
[0025]
Since the main body 12 of the metal fitting body 11 is provided with the screw screwing slit 19 from one end side to the other end side, the mounting position of the outlet box 1 with respect to the main body 12 can be freely adjusted. . Further, the screw screwing slit 19 is not formed continuously from one end side to the other end side of the main body 12, but a plurality of screw screwing slits 19 having a fixed length are formed at short intervals from each other. Therefore, sufficient rigidity can be maintained without reducing the strength of the main body 12.
[0026]
In the above-described embodiment, the notch 15 on the bent piece 14 side and the notch 17 on the main body 12 are V-cut parts 15, 17 formed by cutting the flange b into a V-shape. For example, it may be cut in an arc shape. However, if the V cut portions 15 and 17 are adopted, the clamping and gripping forces of the vertical streaks 8a work strongly due to the V-shaped wedge effect, so that one end side of the bracket main body 11 can be securely fixed to the vertical streaks 8a. There is an advantage that it can be applied to any of the large and small vertical streaks 8a to be sandwiched.
[0027]
【The invention's effect】
According to the outlet box mounting bracket according to the first aspect of the present invention, the outlet box can be easily and quickly attached to the longitudinal bar of the reinforcing bar and accurately mounted at a predetermined position, and the plurality of outlet boxes can be fixed at a predetermined height. It can be accurately mounted at the same level at the same position, thereby greatly improving the efficiency of mounting the outlet box.
[0028]
According to the outlet box mounting bracket of the second aspect of the invention, since the fixing means is made of an iron wire that fixes the other end side of the main body to another vertical streak, the fixing operation can be performed easily and easily.
[0029]
According to the outlet box mounting bracket of the third aspect of the present invention, the notch on one side of the bent part and the notch on the main body side are V-shaped parts formed by cutting the flange into a V-shape. Due to the wedge effect, the pinching force and gripping force of the vertical streaks work strongly, so that one end of the bracket body can be securely fixed to the vertical streaks, and can be applied to both large and small vertical streaks that are pinched It becomes.
[0030]
According to the outlet box mounting bracket of the invention according to claim 4, since the bent piece of the bracket main body is bent in a substantially V-shape with respect to the main body, the bending work of the bent piece portion on site is simplified. , Work efficiency can be further improved.
[0031]
According to the outlet box mounting bracket of the invention according to claim 5, the main body of the bracket main body is bent at one end side so that the flange is cut off in a V-shape, so that the main body is bent at this bent portion. By doing so, the position of the outlet surface of the outlet box attached to the main body can be easily adjusted.
[Brief description of the drawings]
1A is a front view of an outlet box mounting bracket according to the present invention, FIG. 1B is a plan view, and FIG. 1C is a rear view.
2A is an enlarged cross-sectional view taken along line XX of FIG. 1A, and FIG. 2B is a cross-sectional view taken along line YY of FIG.
FIG. 3 is a front view of a state in which an outlet box is mounted on a reinforcing bar using the mounting bracket of the present invention.
FIG. 4 is a drawing of the same mounting state as seen from the back side.
FIG. 5A is a perspective view showing a state in which one end side (one bent side) of the fitting main body is fixed to one vertical streak, and FIG. 5B is a perspective view showing the other end side of the fitting main body to another vertical streak. It is a perspective view which shows the state fixed.
FIG. 6A is a plan view showing a state in which one end side (one bent side) of the fitting main body is fixed to one vertical streak, and FIG. 6B is a sectional view taken along line VV of FIG.
FIG. 7A is a plan view showing a state where the other end side of the metal fitting body is fixed to another vertical streak, and FIG. 7B is a cross-sectional view taken along line WW of FIG.
FIG. 8A is a plan view showing a state in which an outlet box is attached to a main body of a bracket main body, and FIG. 8B is a cross-sectional view taken along line ZZ of FIG.
FIG. 9 is a plan view showing a state in which the main body and the bent piece are bent to each other using a bent portion provided on one end side of the main body to adjust the outlet surface of the outlet box.
FIG. 10 is a perspective view showing a state in which an outlet box is opened on a concrete wall surface and a state in which a wiring hose connected to the outlet box is buried in concrete.
11A is a perspective view of the outlet box viewed from the front side, and FIG. 11B is a perspective view of the outlet box viewed from the back side.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 Outlet box 4 Wiring hose 6 Outlet box screw insertion hole 8 Reinforcing bar 8a Vertical bar 8b Horizontal bar 11 Metal fitting body 12 Main body 13 Bending part 14 Bending piece 15 V-cut part on one side of bending (notch)
16 Screw screw hole 17 V-cut part on main part (notch part)
18 Slit for screw insertion 19 Slit for screw screw 20 V cut portion 21 Main bent portion 22 Screw 23 Iron wire (fixing means)
24 screws

Claims (5)

A mounting bracket for mounting an outlet box embedded in a concrete wall of a reinforced concrete structure so as to open to a concrete wall, the metal fitting body formed by a channel formed of a web and flanges on both sides is a horizontally long main body, It is composed of a bent piece that is connected to one end side of the web via a bent part and can be bent with the groove inward.The bent piece has a notch in the flange and a screw screw hole in the tip of the web. In each case, the main flange is provided with a notch at a position facing the notch when the bent piece is bent, and a slit for screw insertion is provided at one end of the web, and from the slit to the other end of the web. A slit for screw screwing is provided over the entire surface, and the main web is brought into contact with the front surfaces of a plurality of vertical streaks arranged on the concrete wall side, and a cutout of a bent piece is formed. One longitudinal streak is sandwiched between the notch and the main body, and one end of the main body is fixed to the vertical streak by screwing a screw from a screw insertion slit into a screw screw hole, and the other end of the main body is connected to another vertical streak. An outlet box mounting bracket which is fixed to a streak by a fixing means, and an outlet box is brought into contact with the main body so that a screw is screwed into a screw screwing slit of the main body. 2. The outlet box mounting bracket according to claim 1, wherein the fixing unit is formed of an iron wire that fixes the other end of the main body to another vertical streak. 3. The outlet box mounting bracket according to claim 1, wherein the notch comprises a V-cut portion formed by cutting a flange into a V-shape. The outlet box mounting bracket according to claim 1, wherein the bent piece is bent in a substantially V shape with respect to the main body. The outlet box mounting bracket according to any one of claims 1 to 4, wherein a flange of the main body of the bracket main body is cut off in a V-shape at one end thereof and can be bent.

Images