JP2004218800A - Suspension support device, duct hanging structure, and duct hanging method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To hang and support a duct from a ceiling concrete face with reduced cost and shortened construction time. <P>SOLUTION: A fitting body 30 is fitted into a hole 1a provided on a deck plate 1, concrete 3 is placed on an upper face of the deck plate 1, and a coming-off prevention bent part 22 is buried in the concrete face to expose a straight part 21 and a folded-back part 23 below a deck plate face. A tip of the folded-back part 23 is inserted into holes at both ends of a suspension band 40 holding a supported body 8, and both ends of the suspension band 40 are supported in a lower end part of the folded-back part 23. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hanging support for hanging and supporting a supported body from a concrete surface.
[0002]
Problems to be solved by the prior art and the invention
2. Description of the Related Art In air-conditioning works for buildings, factories, warehouses, station buildings, and other structures, a heavy zinc-iron circular duct (spiral duct) is used to carry air (fresh outside air, cold air, warm air, exhaust air). However, in recent years, the duct at the end connected to the ceiling outlet etc. has been used in order to simplify the construction easily and shorten the construction. It is suspended from the surface and supported.
[0003]
In order to suspend the duct from the concrete surface of the ceiling in this way, conventionally, a dedicated pedestal is mounted on the upper surface of the duct, and the pedestal and the fixing device fixed to the ceiling concrete are tied and suspended by a measure. Method (Patent Literature 1), by inserting both ends of a first line surrounding a duct, which have different linear lengths, into two upper and lower small holes of a first metal plate whose center is bent in a V shape. The part is fixed to a first metal plate, and an end of a linear second line hanging down from a concrete surface and one of both ends of the first line are centered in a U shape. A method of suspending and supporting a duct from a concrete surface of a ceiling by fixing the first and second wires to a second metal plate by vertically penetrating two small holes in the upper and lower portions of the second metal plate obtained by bending the second metal plate ( Patent Document 2) and the like.
[0004]
[Patent Document 1] JP-A-8-285359 (page 2, FIG. 1)
[Patent Document 2] JP-B-58-25193 (page 4, FIG. 1)
[0005]
However, in the former method, a dedicated pedestal must be provided in advance on the upper surface of the duct, which increases the cost. In the latter method, the end of the wire must be inserted into the two metal plates from above and below, thus requiring work. It was complicated.
[0006]
For this reason, conventionally, a method of suspending a duct using an insert has also been performed.
That is, as shown in FIG. 9, a hole 1a is made in the deck plate 1 constituting the ceiling surface, and the insert 2 is driven into the hole 1a from above to expose the lower portion 2a of the insert 2 to the lower side of the deck plate 1. Then, concrete 3 is cast on the upper side of the deck plate 1.
[0007]
After the concrete is cast, the upper end of the suspension bolt 4 is screwed into the screw hole 2b of the insert 2 from below and fixed.
Next, the nut 5 is screwed into the lower portion of the suspension bolt 4, passed through the mounting hole 6b of the horizontal portion 6a of the L-shaped bracket 6, and another nut 7 is further screwed from below to tighten the two nuts 5, The L-shaped bracket 6 is fixed to the lower part of the suspension bolt 4 by 7.
[0008]
Next, the bolts 11 are passed through the mounting holes 6d by aligning the holes 10a and 10b of both ends 9a and 9b of the suspension band 9 holding the flexible duct 8 with the mounting holes 6d of the vertical portion 6c of the L-shaped bracket 6. The two ends 9 a and 9 b of the suspension band 9 are fixed to the L-shaped bracket 6 by tightening with the nut 12.
In this way, the flexible duct 8 is suspended and supported.
[0009]
However, in such a conventional method, (a) driving of the insert 2 into the hole 1a of the deck plate 1, (b) attachment of the suspension bolt 4 to the insert 2, (c) L-shaped fitting to the suspension bolt 4 6 and two (4) mounting of the suspension band 9 to the L-shaped bracket 6 with the bolts 11 and the nuts 12 are required. It was hanging.
[0010]
Further, even though the weight of the flexible duct 8 is about 2 kg per 1 m even with a maximum diameter, the use of the suspension bolts 4 and the L-shaped brackets 6 is excessively designed and costly. The amount of attached parts is also large, and for example, in the case of a large building, this work must be performed at an infinite number of places, which has been a great burden for the installer.
[0011]
An object of the present invention is to solve the above problems and to provide a hanging support, a duct hanging structure, and a duct hanging method, which are inexpensive and can significantly reduce the construction time.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the hanging support according to claim 1 of the present invention comprises:
A straight line portion, a linear member formed by a bent portion provided at the upper end of the straight line portion and a folded portion provided at the lower end of the straight line portion,
Positioning the slip-off prevention bent portion above the hole drilled in the deck plate, casting concrete on the upper surface of the deck plate, embedding the slip-off prevention bent portion in the concrete surface, and lowering from the deck plate surface The straight portion and the folded portion are exposed, and the ends of the folded portion are inserted into the holes at both ends of the hanging band holding the supported body, and the both ends of the hanging band are supported at the lower end of the folded portion. It is characterized by doing.
[0013]
Further, the hanging support of claim 2 of the present invention is:
A linear part, a linear body composed of a bent part provided at the upper end of the linear part and a folded part provided at the lower end of the linear part,
A fitting body attached to the linear portion below the bend prevention part of the linear body,
The fitting body is fitted into a hole formed in the deck plate, concrete is poured into the upper surface of the deck plate, the bent-out preventing bent portion is buried in the concrete surface, and the straight portion and the folded portion are bent downward from the deck plate surface. The end of the folded portion is inserted through holes at both ends of the hanging band that exposes the portion and supports the supported body, and the lower end of the folded portion supports both ends of the hanging band. Features.
[0014]
Further, the duct suspension structure according to claim 5 of the present invention comprises:
The fitting is fitted into the hole made in the deck plate,
A detachment prevention bent portion integrally provided at an upper end of the linear body penetrating the fitting body is buried in concrete on the upper surface side of the deck plate,
A folded portion provided integrally with the linear body and its lower end is arranged on the lower surface side of the deck plate,
The folded portion is inserted into holes at both ends of the suspension band holding the duct, and both ends of the suspension band are held by the folded portion.
[0015]
In addition, the method for suspending a duct according to claim 9 of the present invention includes:
Laying a deck plate,
Drilling a plurality of holes in the deck plate along the duct laying direction,
A drop-off preventing bent portion is provided at the upper end of the straight portion, and a hanging support having a fitting below the slip-preventing bent portion is attached to the straight portion provided with a folded portion at the lower end of the straight portion. Inserting the fitting body into the hole by inserting the folded portion and the straight portion from below into the hole of the deck plate from below and down the deck plate;
Casting concrete on the upper surface side of the deck plate, and embedding the falling prevention bent portion,
Laying a duct below the deck plate, surrounding a suspension band around the duct, inserting the folded portion through holes at both ends of the suspension band, and holding the suspension band at the folded portion. ing.
[0016]
With this configuration, the supported member can be suspended and supported by a very simple operation of inserting the tip of the folded portion into the holes at both ends of the suspension band that holds the supported member after casting the concrete. Can be.
[0017]
More specifically, the laying of the duct after casting the concrete, winding the suspension band while hanging the duct, it is only necessary to set the folded portion at a position of a predetermined band length, a significant progress in the work Is seen.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a hanging support according to an embodiment of the present invention.
[0019]
As shown in FIG. 1, the hanging support is for supporting a supported body (for example, a flexible duct for air conditioning) from a concrete surface, and includes a linear body 20 and a fitting body 30.
[0020]
The linear body 20 is a thin metal rod having a circular cross section, and includes a straight portion 21, a bent portion 22 provided at an upper end of the straight portion 21, and a folded portion provided at a lower end of the straight portion 21. 23.
[0021]
The fitting body 30 is provided with through holes 31 vertically along the axis. Therefore, before the folded portion 23 is provided, the straight portion 21 of the linear body 20 is inserted from above into the through hole 31 from the lower end thereof until the bending prevention portion 22 comes into contact with the upper end of the fitting body 30 from above. The folded portion 23 may be formed by folding the lower end of the straight portion 21 upward.
[0022]
The hanging support having such a configuration is used as follows.
First, as shown in FIG. 2, a hole 1a is formed in a deck plate 1 constituting a ceiling surface.
Next, the folded portion 23 and the linear portion 21 of the linear body 20 are inserted into the hole 1a of the deck plate 1 from the upper surface side, and the fitting body 30 is fitted into the hole 1a of the deck plate 1. Thus, the linear body 20 is set upright on the deck plate 1.
[0023]
If the fitting body 30 is formed into a truncated conical shape whose diameter gradually decreases downward, the vertical intermediate portion of the fitting body 30 fits into the hole 1a.
[0024]
Further, if the fitting body 30 is formed in a frustoconical shape using an elastic material such as rubber, the hole 1a is pressed into the hole 1a from above and pressed against the edge of the hole 1a to be elastically deformed and fitted. It is suitable even if the dimensions are out of order, and it is difficult for moisture at the time of concrete casting to leak downward from the hole 1a, so that the rust of the linear body 20 can be prevented.
[0025]
Next, concrete 3 is cast on the upper surface side of the deck plate 1 to form a ceiling.
In this manner, the upper part of the bending prevention part 22 and the fitting body 30 is buried in the concrete 3, and the lower part of the fitting body 30, the straight part 21, and the folded part 23 are exposed vertically downward from the deck plate 1. become.
[0026]
After the concrete curing is completed, as shown in FIGS. 2, 3 and 4, the tip of the folded portion 23 is inserted into the holes 41a and 41b of both ends 40a and 40b of the suspension band 40 holding the flexible duct 8. Then, both ends 40 a and 40 b of the suspension band 40 are supported by the lower end of the folded portion 23.
[0027]
In this manner, the flexible duct 8 can be suspended from the ceiling surface and supported by a simple operation of merely passing the tip of the folded portion 23 through the holes 41a and 41b of both ends 40a and 40b of the suspension band 40.
[0028]
If at least one of the two ends 40a, 40b of the hanging band 40 is provided in the longitudinal direction of the hanging band 40, the hole can be flexibly selected by selecting one of the plurality of holes and inserting the folded portion 23. The difference in diameter of the duct 8 can be accommodated, and the height of the flexible duct 8 can be adjusted.
[0029]
In the case where the linear body 20 is a metal rod having elasticity, when the end of the folded portion 23 approaches the linear portion 21 as shown in FIG. The end of the folded portion 23 may be inserted into the holes 41a and 41b of both ends 40a and 40b of the suspension band 40 by being elastically deformed to be slightly away from the suspension band 40.
Note that a gap may be provided between the tip of the folded portion 23 and the straight portion 21 as shown in FIG.
[0030]
FIG. 6 shows the relationship with the duct to be constructed.
In the figure, reference numeral 50 denotes a vertical wall of a building such as a building, and 51 denotes a vertical hole defined by the vertical wall 50. A vertical duct 52 for blowing air is installed along the vertical hole 51 in the vertical direction of the floor. For each floor, a branch duct 53 is inserted into the penetrating portion 50a (between the ceiling plate 60 and the ceiling concrete surface) of the vertical wall 50, and from this branch duct 53 via the fire damper 54 and the air volume adjustment unit 55, the deck is provided. A long flexible duct 8a is connected below the plate 1, and a plurality of flexible ducts 8b are connected to the flexible duct 8a via a distribution chamber 56. Each flexible duct 8b is connected to an outlet 61 of a ceiling plate 60. You. Note that the portion from the vertical duct 52 to the air volume adjusting unit 55 is made of metal.
[0031]
Therefore, holes 1a are formed at appropriate intervals in the direction in which the flexible ducts 8a and 8b are provided on the deck plate 1 constituting the ceiling surface, and the flexible ducts 8a, What is necessary is just to suspend and support the flexible duct 8b from the deck plate 1.
[0032]
When a plate material is used instead of the deck plate 1, the hanging support device is attached to the deck plate 1 as described above because the collision with the hanging support device occurs when the plate material is removed after curing the concrete.
[0033]
In addition, as shown in FIG. 7, the detachment preventing bent portion 22 is not placed on the fitting body 30 in a ribbon shape over the fitting body 30 as shown in FIGS. The linear body 20 is bent immediately after penetrating the fitting body 30 upward, and is placed so as to cross over the radius of the fitting body 30.
[0034]
In addition, in the embodiment of FIG. 1, the case where the hanging support is constituted by the linear body 20 and the fitting body 30 is shown. However, as shown in FIG. May be.
[0035]
【The invention's effect】
As described above, according to the present invention, the supported member is suspended and supported by a very simple operation of merely inserting the tip of the folded portion into the holes at both ends of the suspension band that holds the supported member. Can greatly reduce the construction time.
[0036]
Further, since a hanging bolt, an L-shaped bracket, a nut, a bolt, and the like are not required, the cost can be significantly reduced.
[0037]
Further, since the linear body 20 is a thin rod of metal, if there is an obstacle or the like, the supported body can be suspended and supported easily by bending the straight portion 21 so as to avoid the obstacle or the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention; FIG. 2 is a sectional view showing a use state of the embodiment; FIG. 3 is a sectional view showing a use state of the embodiment; FIG. FIG. 5 is a front view showing another embodiment of the present invention. FIG. 6 is a schematic view showing a duct hanging structure of the present invention. FIG. 7 is a front view showing another embodiment of the present invention. FIG. 8 is a cross-sectional view showing a use state of another embodiment of the present invention. FIG. 9 is a cross-sectional view showing a conventional hanging support device.
Reference Signs List 20 linear body 21 linear part 22 pull-out preventing bent part 23 folded part 30 fitting body 31 through hole

Claims (12)

A hanging support for supporting the supported body with a hanging band and suspending and supporting the supported body from a concrete surface,
A straight line portion, a linear member formed by a bent portion provided at the upper end of the straight line portion and a folded portion provided at the lower end of the straight line portion,
Positioning the slip-off prevention bent portion above the hole drilled in the deck plate, casting concrete on the upper surface of the deck plate, embedding the slip-off prevention bent portion in the concrete surface, and lowering from the deck plate surface The straight portion and the folded portion are exposed, and the ends of the folded portion are inserted into the holes at both ends of the hanging band holding the supported body, and the both ends of the hanging band are supported at the lower end of the folded portion. A hanging support tool characterized in that it is made. A hanging support for supporting the supported body with a hanging band and suspending and supporting the supported body from a concrete surface,
A linear part, a linear body composed of a bent part provided at the upper end of the linear part and a folded part provided at the lower end of the linear part,
A fitting body attached to the linear portion below the bend prevention part of the linear body,
The fitting body is fitted into a hole formed in the deck plate, concrete is poured into the upper surface of the deck plate, the bent-out preventing bent portion is buried in the concrete surface, and the straight portion and the folded portion are bent downward from the deck plate surface. The end of the folded portion is inserted through holes at both ends of the hanging band that exposes the portion and supports the supported body, and the lower end of the folded portion supports both ends of the hanging band. Characteristic hanging support. 3. The hanging support according to claim 2, wherein the fitting has a columnar shape with a small diameter on the lower side. The hanging support according to claim 2, wherein the fitting body is made of an elastic material. The fitting is fitted into the hole made in the deck plate,
A detachment prevention bent portion integrally provided at an upper end of the linear body penetrating the fitting body is buried in concrete on the upper surface side of the deck plate,
A folded portion provided integrally with the linear body and its lower end is arranged on the lower surface side of the deck plate,
A duct hanging structure, wherein the folded portion is inserted into holes at both ends of a hanging band holding a duct, and both ends of the hanging band are held by the folded portion. The duct hanging structure according to claim 5, wherein the fitting has a columnar shape with a small diameter on a lower side. The duct hanging structure according to claim 5, wherein the fitting body is made of an elastic material. The duct hanging structure according to claim 5, wherein a plurality of holes in a longitudinal direction of the hanging band are provided at at least one end side of the hanging band for selectively inserting the folded portion. Laying a deck plate,
Drilling a plurality of holes in the deck plate along the duct laying direction,
A drop-off preventing bent portion is provided at the upper end of the straight portion, and a hanging support having a fitting below the slip-preventing bent portion is attached to the straight portion provided with a folded portion at the lower end of the straight portion. Inserting the fitting body into the hole by inserting the folded portion and the straight portion from below into the hole of the deck plate from below and down the deck plate;
Casting concrete on the upper surface side of the deck plate, and embedding the falling prevention bent portion,
Laying a duct below the deck plate, surrounding a suspension band around the duct, inserting the folded portion through holes at both ends of the suspension band, and holding the suspension band at the folded portion. Duct hanging method. The method for suspending a duct according to claim 9, wherein the fitting body has a column shape having a small diameter on a lower side. The method for suspending a duct according to claim 9, wherein the fitting body is made of an elastic material. The duct hanging method according to claim 9, wherein a plurality of holes in a longitudinal direction of the hanging band are provided on at least one end side of the hanging band for selectively inserting the folded portion.

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