JPH08285359A - Device for suspending flexible duct - Google Patents

Abstract

PURPOSE: To provide a low cost suspending device for a flexible duct, which permits very smooth duct suspending and regulating works when the main body of the duct is attached by contracting and adjusting it while considering the connection to the other air conditioning instruments and the like upon the suspending work of the flexible duct. CONSTITUTION: A suspending device 10 for a flexible duct, arranged in a ceiling C or the like while being retained by a retaining devices 22 provided on the upper wall W or the like of the ceiling C, is constituted of a flexible suspension receiving table 20, provided with suspension receiving units 18 at a plurality of requested positions in the lengthwise direction of the main body 12 of the duct and fixed to the main body 12 of the duct, and retaining ropes 24, whose one end is retained or bound to the suspension receiving units 18 and the other end is retained or bound to the retaining devices 22. The reattachment of ropes can be made to the retaining devices easily in accordance with the elongation and contraction of the duct to suspend the duct.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a duct for air conditioning, in particular
The present invention relates to a flexible suspension device for an air conditioning duct.

[0002]

2. Description of the Related Art Conventionally, an air-conditioning duct as an air passage for conveying conditioned air is arranged in a ceiling or the like in a building, and is used for communicating an air conditioner, an indoor air outlet, an air-conditioning chamber, etc., or an exhaust path. To guide the transportation of air. Conventionally used air conditioning ducts include round ducts or square ducts made of zinc iron plate or other suitable material, and a circular duct formed by spirally winding a strip-shaped galvanized iron plate has high strength and little leakage.

[0003]

By the way, recently, glass wool itself has been used as a duct wall for ventilation, and a spiral steel wire is built in the duct wall, and the surface is covered with a vinyl chloride outer cover. As a duct, a glass wool flexible duct is known. For example, these have a stretch ratio of about 3 times, are lightweight and easy to carry, and have a good storability. It is expected that If such a duct having great flexibility and elasticity is used, it is possible to ensure good workability because it is lightweight, bendable, and highly expandable at the installation work site. FIG. 13 is an explanatory view showing a state in which such a highly ductile duct is suspended and supported inside the ceiling, and a suspension bolt fixed to the ceiling slab or the like serving as an upper wall in the ceiling with its end portion facing downward. A band made of a strip-shaped iron plate was wound around and fixed by tightening. When using a duct with such high flexibility, the length of the duct can be arbitrarily changed when adjusting the connection with air conditioners, outlets, air conditioning dampers, and other air conditioning equipment when fixing the band with conventional hanging bolts. It is necessary to tighten the band, loosen the bolts, set the duct position and retighten each time
The operation for adjusting the suspension of the duct is complicated, it takes a long time, and it is difficult to take advantage of the characteristics of the duct having high flexibility and high elasticity. Also, when the duct is used by contracting it from the extended state, the suspension bolt can be moved within the range of the straight movement direction to some extent within the fastening range by the band, but the mounting position itself is fixed, so the duct is greatly contracted. When it is used for a long time, there is a problem that the support by the hanging bolt cannot be obtained and the construction may be difficult in reality.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to expand and contract the duct body in consideration of connection with other air-conditioning equipment when suspending the flexible duct. It is an object of the present invention to provide a suspension support device for a flexible duct that can perform a duct suspension adjustment work such as adjustment and attachment extremely smoothly. Another object of the present invention is to provide a flexible duct suspension support device capable of forming a suspension support part on the duct main body at low cost, the suspension support part being connected to a locking tool provided on the duct main body and the ceiling back wall or the like. It is to be.

[0005]

In order to achieve the above object, the invention according to claim 1 is such that the ceiling 22 is locked by a locking tool 22 provided on the upper wall W of the ceiling back C or the like. A suspension device for a flexible duct arranged in C or the like, which is a duct main body 12
The flexible suspension support base 20 having the suspension support portions 18 at a plurality of required positions in the longitudinal direction of the is fixed, and one end is locked or bonded to the suspension support portion 18, and the other end is The locking device 22
The suspension supporting device 10 for a flexible duct is provided with a locking rope 24 that locks or binds to the.

In the invention according to claim 2, the suspension support base 20 may be a synthetic resin sheet (16).

Further, in the invention of claim 3, the duct body 12 is provided between the duct body 12 and the suspension support 20.
And a plurality of openings 28 communicating with the communication holes 26 are formed on the communication holes 26 of the suspension support base 20. A communication line 30 may be inserted into the communication hole 26, and a part of the communication line 30 may be pulled out from the opening 28 to serve as the suspension support portion 18 or the locking line 24.

Further, in the invention of claim 4, the communication rope 30 may be arranged so as to be movable in the communication hole 26 in the longitudinal direction.

Further, in the fifth aspect of the invention, a part of the mooring line 30 pulled out from the opening 28 is bound to form a loop 32, whereby the suspension support part 18 may be formed. .

Further, in the invention of claim 6, the suspension support portion 18 is at least a side portion 12S of the duct body 12.
It may be provided as well.

[0011]

In the suspension device for a flexible duct according to the first aspect of the present invention, the flexibility is retained on the ceiling or the like by being locked by the locking tool provided on the upper wall or the like of the ceiling. A suspension suspension device for a duct, wherein a flexible suspension support base having suspension support portions is fixed at a plurality of required positions in the longitudinal direction of the duct main body, and one end is locked to the suspension support portion. Along with binding, it has a locking line for locking or binding the other end to the locking tool. If the ridges, hooks, etc. that will become the suspension support parts are formed in advance on the flexible suspension support base, this suspension support base can be welded to the duct body, bonded, or by any other method. The operation of suspending the flexible duct can be completed only by fixing and connecting and fixing to the locking tool provided on the upper wall or the like by the locking rope. If a cord or rope is used to suspend the duct body, the duct body and the locking rope can be easily attached and detached, and the construction efficiency is good. If you use a wire made of soft iron wire, which is commonly known as "number wire", not only pulling force but also compressive force is applied,
It is more preferable to maintain the posture of the duct. Further, if hooks, rings, clips or other locking members are connected and fixed to the lower end of the locking rope, they can be attached and detached more easily.

In the flexible duct suspension device according to the second aspect of the present invention, the suspension support base is formed of a synthetic resin sheet. Not only is the suspension pedestal extremely lightweight and inexpensive to form, and it is easy to join with the duct body, but in the case of a duct body made of glass fiber layered insulation, the same composition is used on the surface. The resin material may be coated as a cover sheet and bonded to the cover sheet, and the bondability is high.

In the flexible duct suspension device according to the third aspect of the present invention, a communication hole extending along the longitudinal direction of the duct body is formed between the duct body and the suspension support base. In addition, an opening communicating with the communication hole is formed at a plurality of positions on the communication hole of the suspension support base, and further, a communication rope is pierced in the communication hole and communicated from the opening. A part of the mooring line is pulled out and used as a suspension support portion or a locking line. The tethers are inserted through the tethers, and they are pulled out from the opening before use. The length of the locking rope can be adjusted smoothly.
Further, when hanging on the upper wall or the like, or when correcting the position, the degree of freedom in the hanging direction and length is high, and the adjustment is easy.

In the flexible duct suspension device according to the fourth aspect of the present invention, the mooring line is arranged so as to be movable in the longitudinal direction within the mooring hole. The length of the communication rope can be freely adjusted when connecting with the locking rope.

In the suspension device for a flexible duct according to a fifth aspect of the present invention, a part of the mooring line pulled out from the opening is bound to form a loop, whereby the suspension supporter is provided. Forming a part. By binding to form a loop, the position of the suspension support part does not change drastically due to being pulled from the opening and the suspension support part itself does not disappear, and the suspension support lock Form a hook for connection with the rope.

In a flexible duct suspension support device according to a sixth aspect of the present invention, the suspension support portion is also provided at least on the side of the duct body. At least, by pulling the duct main body from the side portion, the duct is prevented from being twisted at the bent portion, and an appropriate air flow path is secured.

[0017]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 10 show one embodiment of the present invention, and in FIG.
A flexible duct main body 12 is suspended by a flexible duct suspension device 10.

The duct body 12 is made of, for example, layered glass wool or other non-combustible heat insulating material having heat insulating properties, and a flexible or elastic material formed into a cylindrical shape or a rectangular tube shape. A stretchable one is used, and a spiral piano wire or the like is incorporated inside in order to maintain strength or shape retention. It is preferable that the duct as a whole has elasticity in the longitudinal direction and is lightweight.

In this embodiment, since the duct body 12 is made of glass wool as shown in FIG. 3, thin glass fibers are laminated in layers to give a soft surface and a large amount of air inside to form a cylindrical shape. It is formed and can be expanded and contracted in the longitudinal direction. As shown in FIG. 3, a cylindrical wall 14 is formed while forming a wind flow path P, and at least one of the inner wall surface and the outer wall surface (in this embodiment, glass wool material is previously protected with paper or cloth). And is coated on the outer surface side thereof with an air-impermeable sheet 16 made of, for example, polyvinyl chloride or other synthetic resin. The length of the shape-retaining member, such as a piano wire, is converged to a length of about 1 m when it is folded in the direction of contraction against the elasticity of the shape-retaining member such as a piano wire. The force instantly extends it to a length of about 3 m. The shape-retaining member may not be a material having elasticity in the expansion / contraction direction, but may be a material that deforms its shape at each expansion / contraction position without elasticity. The duct body may be made of any material as long as it has flexibility and the body expands and contracts in the longitudinal direction, and the material itself may be arbitrary. For example, it may be a duct formed of aluminum foil.

In the present invention, the suspension supporting base 20 having the suspension supporting portion 18 is fixed in the longitudinal direction of the duct body 12. This suspension support 20 is made of a flexible material such as a polyvinyl chloride sheet which is the same material as the cover sheet 16 of the duct body, and is fixed to the duct body 12 by a method such as adhesion, welding or sewing. There is.

The material of the suspension pedestal 20 is not limited to this, and other synthetic resin sheets, non-woven fabrics, woven fabrics and other cloths, and other lightweight and connectable to the duct body 12 or the covering sheet 16. A good material is used. The suspension support base 20 is provided with a suspension support portion 18. The suspension support portion 18 is for fixing one end of a locking rope described later, and is an annular body, a raised body, or a hook fixed to the suspension support base 20 by adhesion, sticking, suturing or other joining method. It is provided as a shape that can easily hold the fixed state with the body and other locking ropes.

As described above, since the suspension support base 20 is flexible, even if the duct body 12 is pulled or contracted in the longitudinal direction, the suspension support base 20 can be correspondingly stretched.
Also, the fixed position with respect to the duct body 12 expands and contracts without changing.

Further, the present apparatus 10 has a locking rope 24 for connecting the suspension support portion and an anchor bolt 22 attached to the upper wall of the ceiling or the like and any other locking tool 22. There is. The locking cord may be a wire, a metal filament, a cloth or synthetic resin cord, a rope, or any other cord.

[0024] With this, the flexible duct can be easily connected to the engaging member, and particularly, the connection with the air outlet D, the air conditioner, the damper, and other air conditioners can be performed during the operation of suspending the duct. Due to the relationship, when the extension / contraction is to be adjusted, even if the duct body is expanded / contracted, the position of the suspension support portion is not deviated, and if the locking rope 24 is adjusted,
Without hindering the expansion and contraction of the duct body, it is possible to smoothly, quickly, and efficiently perform the duct hanging operation. A method for connecting and fixing the locking rope 24 to the suspension support portion 18 and the locking tool 22 may be locking with respect to the hook shape, tying the rope, or any other fixing method.

Further, as shown in FIG. 9, when using the hanging bolt 22a, if the nut portion is moved up and down and the end portion of the locking cord 24 is bound to this nut portion,
The length of the locking rope can be shortened to some extent.

In the present embodiment, the suspension pedestal 20 is made of an elongated belt-shaped polyvinyl chloride sheet as described above,
It is welded and fixed to the cover sheet 16 of the duct body 12. Further, in this embodiment, as shown also in FIGS. 4 to 8, between the duct main body 12 and the suspension support base 20, in the central portion of the suspension support base 20, a communication hole 2 is previously formed in the longitudinal direction.
6 to form the suspension support table 20 so that the duct main body 12 is formed.
It is fixed to.

Further, as shown in FIG. 6, openings 28 are formed at a plurality of locations in an arbitrary central portion of the suspension support table 20. Then, as shown in FIGS. 2, 4, 8, and 10, the communication line 30 is engaged with the communication hole 26. And opening 2
A part of the tether rope 30 is pulled out from 8, and a knot as shown in FIG. 7 is tied to the pulled out portion to form a loop 32. The knot portion is prevented from being drawn into the communication hole 26 from the opening 28, and the suspension support portion 18 is formed by the loop 32.

The tether 30 is inserted so as to be freely movable in the longitudinal direction in the tether 26, and in this state, a part is pulled out from the opening to form the suspension support portion 18. As a result, as long as there are openings 28, the suspension support portions can be provided in any number or at any position. Further, even if a part of the tether rope 30 is not pulled out to form a knot, it is tied by another wire or cord, or another caulking member, and is extended as it is to form the locking tether 24. You may make it function.

Thus, for example, when suspending a glass wool flexible duct or other flexible duct, it is possible to inexpensively form a large number of suspension support portions 18, and at the same time, when the duct body is adjusted, it is expanded and contracted and deformed. Suspension support 1
Since the fixed position of 8 does not shift with respect to the duct body, it does not hinder the expansion and contraction and deformation of the duct body, and the duct body is not damaged during the construction work and can be easily installed in a short time.

For example, when the duct main body 12 is contracted from the state shown by the chain line in FIG. 10, a hook 24a is attached to the tip of the locking rope 24. In this case, the hook is removed, the duct main body 12 is contracted to the state shown by the solid line, and the upper end side of the locking rope is attached or tied to the locking tool provided on the other upper wall W side, which is simple. Can be connected to. Since the fixed position of the suspension support portion 18 with respect to the duct main body does not change as it is, the contracted state of any duct main body is secured without merely re-fixing the duct main body, and the locking cord is simply locked. The duct can be hung and installed simply by replacing.

As shown in FIG. 11, the suspension supporting portion 18 fixes the suspension supporting bases 20, 20-1, 20-2, 20-3 in the vertical and horizontal directions in a longitudinal sectional view, thereby at least the duct main body. The suspension support portion 18 may be attached to the side of 12 as well. In this case, as shown in FIG.
To prevent the duct from being twisted at the bent part of the duct and blocking the flow path, the locking cords are fixed and pulled from multiple circumferential directions to arbitrary locking devices or appropriate locking parts in place of this, and air conditioning is performed. The air passage of the duct is securely held so as not to be deformed or blocked.

When such a flexible duct suspension device 10 is used, it can be easily detached not only during suspension work but also during duct replacement or repair work, and the suspension is extremely simple and can be performed in a short time. You can do it.

The suspension device for a flexible duct according to the present invention is not limited to the configuration of the embodiment described above, and any modification can be made without departing from the essence of the invention described in the claims. You can go. For example, the duct shape may be a cylinder, a rectangular tube, an ellipse, or any other shape.

[0034]

As described above, according to the flexible duct suspension support apparatus of the first aspect, the ceiling duct or the like is locked by the locking tool provided on the upper wall or the like of the ceiling ceiling. Is a flexible duct suspension support device, wherein a flexible suspension support base having suspension support parts at a plurality of required positions in the longitudinal direction of the duct main body is fixed, and the suspension support part is provided. Since one end is locked or tied and the other end is locked or tied to the locking tool, the flexible duct can be easily connected to the locking tool. In particular, when the duct main body is extended or contracted, the position of the suspension support part is deviated even when the duct body is extended or contracted due to the connection with other air conditioning equipment during the construction work for suspending the duct. And the adjustment of the locking cords does not hinder the expansion and contraction deformation of the duct body, resulting in smooth, quick, It can be efficiently carry out the work hanging of the duct. Further, as a method of connecting and fixing the locking rope to the suspension support portion and the locking tool, locking with respect to the hook shape, tying the rope, or any other fixing method may be used. Since the flexibility of the binding method is high and it is possible to respond freely to the situation of any hanging construction site, it is possible to dramatically improve the construction efficiency.

Further, according to claim 2, since the suspension support base is a synthetic resin sheet, the material cost is low, the processing is simple, and the suspension support part is formed by molding or the like. The raised portion, the annular shape, the hook shape and the like can be freely formed, and when such a member is separately prepared and connected, the shape and structure of the connecting portion can be freely set.

According to a third aspect of the present invention, a communication hole is formed between the duct main body and the suspension support base along the longitudinal direction of the duct main body, and a communication hole of the suspension support base is formed. On the engaging hole, openings communicating with the communicating hole are formed at a plurality of positions, and further,
Since the communication rope is pierced in the communication hole and a part of the communication rope is pulled out from the opening to be the suspension support portion or the locking rope, it is very inexpensive and immediate. A large number of suspension support parts can be provided in the flexible duct. Also, the suspension support part can be formed by simple work such as attaching a knot to the rope,
It is possible to realize quick construction efficiency.

Further, according to the fourth aspect, since the communication rope is arranged so as to be movable in the longitudinal direction in the communication hole,
When a part of the tether rope is pulled out from the opening, the length of the binding and the opening from which it is pulled out can be selected, and the length can be easily adjusted at the time of setting, so that the work of forming the suspension support part can be performed smoothly.

According to a fifth aspect of the present invention, a part of the tether rope that is pulled out from the opening is bound to form a loop, and the loop is formed by the loop, thereby forming the suspension support portion. The portion can be formed in a short time, and the length can be easily adjusted with a high degree of freedom.

Further, according to claim 6, since the suspension support portion is also provided at least on the side of the duct body, even if the duct has many bends or the bend angle is sharp, The duct main body can be pulled or supported from the upper side or the side part to reliably prevent the deformation or blockage of the duct internal passage.

[Brief description of drawings]

FIG. 1 is a schematic front explanatory view which also serves to explain a usage state of a suspension device for a flexible duct according to an embodiment of the present invention.

FIG. 2 is a schematic front explanatory view showing a state where a suspension support base is formed on the duct body of the flexible duct suspension support apparatus according to the embodiment.

FIG. 3 is a partially enlarged cross-sectional explanatory view of a flexible duct body.

FIG. 4 is a plan view illustrating a state in which a suspension support base is formed on the duct body according to FIG.

FIG. 5 is a vertical cross-sectional explanatory view thereof.

FIG. 6 is a partially omitted plan view of a suspension support base.

FIG. 7 is an enlarged explanatory view of a main part of a mooring line.

FIG. 8 is an explanatory view showing a state in which a part of the communication rope is pulled out from a communication hole formed inside the suspension support base.

9 (a) and 9 (b) are explanatory views of the operation when the duct is suspended from the suspension bolt by the locking rope.

FIG. 10 is an explanatory view of a hanging operation of a duct using a flexible duct hanging device.

FIG. 11 is a vertical cross-sectional explanatory view of a duct main body showing another embodiment of the suspension support device for a flexible duct of the present invention.

FIG. 12 is an explanatory view of the suspended state.

FIG. 13 is a partially omitted explanatory view showing a suspended state of a duct having high elasticity.

[Explanation of symbols]

 10 Flexible Duct Suspension Device 12 Flexible Duct Main Body 18 Suspension Supporting Part 20 Suspension Supporting Stand 22 Locking Tool 24 Locking Rope 26 Threading Hole 28 Opening 30 Threading Rope

Claims (6)

[Claims] 1. A suspension device for a flexible duct, which is locked to a locking tool provided on an upper wall or the like of a ceiling and is arranged on the ceiling or the like, which is required in a longitudinal direction of a duct body. A flexible suspension support base having suspension support portions at a plurality of positions is fixed, one end is locked or bound to the suspension support portion, and the other end is locked to the locking tool. A suspension device for a flexible duct, which has a locking rope for binding. 2. The suspension support device for a flexible duct according to claim 1, wherein the suspension support base is a synthetic resin sheet. 3. A communication hole is formed between the duct main body and the suspension supporting base along the longitudinal direction of the duct main body, and the communication hole is provided on the communication hole of the suspension supporting base. An opening communicating with the engaging hole is formed at a plurality of positions, and a communicating rope is pierced through the communicating hole, and a part of the communicating rope is pulled out from the opening to suspend or support the suspension. The suspension support device for a flexible duct according to claim 1 or 2, wherein the suspension device is a cord. Place. 4. The suspension device for a flexible duct according to claim 3, wherein the mooring line is arranged so as to be movable in the longitudinal direction in the mooring hole. 5. The suspension support portion according to claim 3, wherein a part of the mooring line pulled out from the opening is bound to form a loop, and the loop is formed thereby. Flexible duct suspension support device. 6. The suspension supporting device for a flexible duct according to claim 1, wherein the suspension supporting portion is also provided at least on a side of the duct body.