JP3161118U - Air conditioning duct - Google Patents

Abstract

An air conditioning duct that can be easily expanded and contracted during construction work and has sufficient antibacterial properties. A belt-like sheet material 10 having a structure in which a copper alloy 10B is vapor-deposited as a vapor deposition material on a polyester film 10A is formed in a bellows shape on a core member such that a surface 10X on which the copper alloy 10B is vapor-deposited is inside. By attaching the air-conditioning duct, an air-conditioning duct that can be expanded / contracted and bent as required and has sufficient antibacterial properties is obtained. [Selection] Figure 3

Description

  The present invention relates to an air-conditioning duct, which can be flexibly expanded and contracted.

  Conventionally, air-conditioning ducts that blow indoor air-conditioning air use iron plates, iron pipes, and vinyl chloride pipes, but it is necessary to bend pipes depending on the construction structure, arrangement of equipment and equipment. The thing of a bellows structure is proposed as a thing corresponding to such a necessity (refer patent document 1 and 2).

JP-A-8-14490 Japanese Patent Laid-Open No. 11-14128

  By the way, in order to construct the air conditioning duct to blow the air conditioning air to the air outlet arranged at the position as designed, the air conditioning duct can be easily expanded and contracted and bent according to the designer's intention. In order to prevent the air-conditioning air from being contaminated, it is required to have sufficient antibacterial properties.

  The present invention has been made in view of the above points, and intends to propose an air conditioning duct that can be easily expanded and contracted during construction work and has sufficient antibacterial properties.

  In order to solve such a problem, in the present invention, a belt-like sheet material having a configuration in which a core member 2 having a coiled spring coil shape and a deposition material 10B containing a metal having a bactericidal action are deposited on a synthetic resin material film 10A. 10 is provided with an air guide member 3 attached to the core member 2 in a bellows shape so that the surface 10X on which the vapor deposition material 10B is vapor-deposited is inside.

  According to the present invention, a belt-like sheet material having a configuration in which a vapor deposition material containing a sterilizing metal is vapor-deposited on a synthetic resin material film is formed in a bellows shape so that the surface on which the vapor deposition material is vapor-deposited is inside. By attaching to a core member having a string-wound spring coil shape, it is possible to obtain an air-conditioning duct that can be expanded / contracted and bent as required and has sufficient antibacterial properties.

It is a perspective view showing one embodiment of an air-conditioning duct according to the present invention. It is sectional drawing which shows the longitudinal cross-section structure of the duct for an air conditioning. 2 is a cross-sectional view showing the structure of a strip-shaped sheet material 10. FIG. FIG. 2 is a schematic diagram showing the spiral shape of FIG. 1 developed on a plane for explaining how to wrap a belt-like sheet material 10 around a core member 2. It is a basic diagram with which it uses for description of the attachment method of the air guide member 3, the heat retention member 4, and the surface coating member 5. FIG. It is a basic diagram with which it uses for description of the method of adhesion | attachment with an adhesive agent. (A) And (B) is a rough-line perspective view with which it uses for description of the piping method.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  In FIG. 1, 1 indicates an air conditioning duct as a whole. The air-conditioning duct 1 has a thin-film air guide member 3 attached to a core member 2 (FIG. 2) formed by winding a steel wire 2X (FIG. 2) in a string-wound spring coil shape, and around the air guide member 3 Is wrapped with a heat retaining member 4, and a thin film-like surface covering member 5 is attached to the heat retaining member 4.

  As shown in FIG. 2, the air guide member 3 is attached to the core member 2 so as to be wound obliquely in the longitudinal direction while holding the core member 2 made of a spring coil-shaped steel wire 2X within the thickness. A circular wind passage is formed.

  The air-conditioning duct 1 forms a spiral ridge 6 along a core member 2 wound in a spring coil shape, and a continuous portion 7 that connects the adjacent ridges 6 is a coil shape of the core member 2. The bellows structure is formed so as to form a spiral valley portion 8 that is bent so as to squeeze in the center direction.

  The air guide member 3 has a configuration in which the belt-like sheet material 10 (FIG. 3) having a width d1 (= 50 [mm]) is used as a raw material and the belt-like sheet material 10 is attached to the core member 2.

  As shown in FIG. 3, the strip-shaped sheet material 10 has a configuration in which a copper alloy 10B as a deposition material is deposited on a polyester film 10A with a thickness of, for example, 10 to 100 nm, and the copper alloy 10B is deposited. The surface 10X is attached to the core member 2 so that the surface 10X is inside (that is, the air-conditioning air passage side).

  Thus, the strip-shaped sheet material 10 has a sterilizing action (trace metal action) due to the copper contained in the vapor-deposited copper alloy 10B. Prevents breeding and retains antibacterial properties.

  In addition to this, the strip-shaped sheet material 10 has flexibility in the thickness direction, and exhibits a rigidity capable of maintaining the processed shape when plastically processed.

  Thus, when the belt-shaped sheet material 10 is constructed together with the core member 2 having a string-wound spring coil shape, the worker can bend or expand / contract as necessary during construction while maintaining the bellows structure. It has the characteristics that can be flexibly handled.

  As shown in FIG. 4, the strip-shaped sheet material 10 constituting the air guide member 3 is partially overlapped from the outside along the spiral winding direction with respect to the steel wire 2 </ b> X of the core member 2. It is wound at an angle.

  In FIG. 4, among the core members 2 spirally wound at intervals of pitch P1 (= 25 [mm]), one turn of the strip-shaped sheet material 10 with respect to the core members 2A and 2B for one successive turn. Sheet material... 10N-1, 10N, 10N + 1... Are sequentially wound around a position shifted by one pitch P1.

  The width d1 of the strip-shaped sheet material 10 is selected to be twice the value of the pitch P1 of the core member 2, and thus the first half d1A of the width d1 is wound around the core member 2A for one turn. Then, the latter half d1B is wound around the core member 2B for the next round.

  Thus, the sheet material for one volume... 10N-1, 10N, 10N + 1... Is the belt-like sheet material for the first volume one turn before the first half d1A. It is wound so as to overlap the latter half part d1B.

  On the other hand, the second half d1B of the sheet material for one volume... 10N-1, 10N, 10N + 1... The second half d1B is wound around the position after winding.

  When winding the sheet material for one turn, 10N-1, 10N, 10N + 1, and so on around the adjacent core members 2A and 2B of the steel wire 2X spirally wound in this way, respectively. Then, the strip-shaped sheet material 10 is pasted around the core member 2 so as to sandwich the corresponding steel wire 2X between the sheet material for one roll that continues.

  In FIG. 5, when one sheet of sheet material 10N of one volume of 10N−1, 10N, 10N + 1... Is shown, the sheet material 10N for one volume is to be wound. Of the two core members 2A and 2B for one round, the core member 2A for one round of the front side is wound from the inner side to the second half d1B of the sheet material 10N-1 for the immediately preceding roll, The first half d1A of the sheet material 10N for one turn is wound from the outside around the core member 2A for one turn.

  As shown in FIG. 6, an adhesive layer 11 (made of a polyurethane resin-based adhesive) is provided on the inner side of the first half d1A of the sheet material for one roll 10N-1, 10N, 10N + 1. On the second half d1B of the core material 2A for one round of the front side with the adhesive layer 11 sandwiched therebetween and the sheet material for one roll around which this is wound ... 10N-2, 10N-1, 10N ... Are bonded together.

  In this state, since the sheet material 10N-1 for the immediately preceding one volume has not extended in the winding range of the second half d1B of the sheet material 10N for one volume, the sheet material 10N-1 is disposed at the winding position without any overlapping members. Is done.

  Thus, after the sheet material 10N for one volume is wound around the predetermined winding position and the winding operation is finished, the core member 2B on the rear side is wound on the latter half part d1B of the sheet material 10N for one volume. It is done.

  As shown in FIG. 6, an adhesive such as the adhesive layer 11 is not used in the latter half d1B.

  In this way, a series of winding operations on the core member 10N for one round is completed.

  The winding operation for the sheet material 10N for one volume is sequentially executed at a predetermined timing in the same manner for the other sheet materials 10N-2, 10N-1, and 10N + 1, 10N + 2. Is done.

  Thus, for each one volume of sheet material... 10N-1, 10N, 10N + 1, etc., after the front core member 2A is wound around the outer side of the immediately preceding one sheet of sheet material 10N-1, then one volume is continued. When the first half d1A of the sheet material 10N is wound on the front core member 2A, the adhesive layer 11 provided on the lower surface of the sheet material 10N and the second half d1B of the sheet material 10N-1 for the immediately preceding roll The core member 2A is stuck together so as to be held in a state where the core member 2A is sandwiched therebetween.

  Subsequently, the rear core member 2B is wound on the second half d1B of the sheet material 10N for one volume, and the winding operation for the sheet material for one volume is completed.

  With respect to the latter half d1B of the sheet material 10N for one volume, the sheet material 10N + 1 for the next one volume is subsequently wound, so that the immediately following 1 d is obtained by the adhesive layer 11 provided on the lower surface thereof. The first half d1A of the sheet material 10N + 1 for the winding and the second half d1B of the sheet material 10N for one roll are bonded together so as to hold the core member 2B for one round of the rear side.

  Thus, when one sheet of sheet material... 10N-1, 10N, 10N + 1... Is sequentially wound around the corresponding one round of core members 2A and 2B, one sheet of sheet material as a whole becomes a series. A cylindrical air guide member 3 is formed.

  As shown in FIG. 5, a heat insulating member 4 made of a glass wool plate having a thickness of 25 [mm] as a heat insulating material is attached to the outside of the air guide member 3 formed in this way. The heat retaining member 4 is wound along the cylinder of the air guide member 3 and is held inside while keeping the cylindrical shape of the air guide member 3.

  And the surface coating | coated member 5 is affixed on the outer side of the heat retention member 4 formed in this way. The surface covering member 5 uses the belt-like sheet material 20 having a width d2 (= 52 [mm]) as a raw material, and the heat-insulating member 4 while sandwiching the belt-like sheet material 20 around a core member 21 wound in a double spiral shape. It has the structure stuck on.

  The strip-shaped sheet material 20 has a configuration in which an aluminum foil 20B is laminated on a polyester film 20A, and is attached to the heat retaining member 4 so that the surface on the aluminum foil 20B side is the outside.

  The core member 21 has a double helical structure in which two glass fiber yarns separated by a spacing B (= 5 [mm]) are spirally wound at a pitch P2 (= 37 [mm]) spacing. It is wound on a belt-like sheet material 20 that is attached to the heat retaining member 4.

  When the belt-shaped sheet material 20 is wound around the heat retaining member 4, the spiral winding is performed while sandwiching the core member 21 wound in a double spiral manner in the same manner as the air guide member 3 described above. Along the direction, it is wound obliquely while partially overlapping from the outside.

  That is, the strip-shaped sheet material 20 for one roll is wound around the heat retaining member 4 at a position that is sequentially shifted by one pitch P2. At this time, the belt-shaped sheet material 20 for one turn is wound so that the portion of the length d3 (= 15 [mm]) from the front is overlapped with the second half of the belt-shaped sheet material for one previous roll, A core member 21 for one turn is sandwiched between the belt-like sheet material 20 for one roll before the previous one.

  Thus, as the winding process, the air guide member 3 is wound around the core member 2, the heat insulating member 4 is wound around the air guide member 3, and the surface covering member 5 is wound around the heat insulating member 4. It is turned on.

  As a result, the air guide member 3 is attached to the core member 2 while holding the core member 2 processed so as to maintain a spiral shape in a tubular shape by the steel wire 2X, and the heat retaining member 4 is provided outside the core member 2. And by attaching the surface covering member 5, the air guide member 3, the heat retaining member 4, and the surface covering member 5 maintain a cylindrical shape as a whole.

  The cylindrical air guide member 3, the heat retaining member 4, and the surface covering member 5 are tightened so as to sandwich the steel wire 2 </ b> X along the spiral core member 2 as a bellows forming step.

  As shown in FIG. 2, the tightening process is performed such that the surface covering member 5 is pressed against the air guide member 3 along the outer shape of the steel wire 2 </ b> X constituting the core member 2.

  At this time, the air guide member 3, the heat retaining member 4, and the surface covering member 5 are deformed along the outer shape of the steel wire 2X having rigidity to form a spiral peak portion 6 along the core member 2A. .

  On the other hand, since the other part which does not form the peak part 6 in the air guide member 3, the heat retaining member 4, and the surface covering member 5 is in a state that exhibits flexibility in the thickness direction, it is continuous. The portion 7 is pushed toward the center of the core member 2.

  Thus, in the air guide member 3, the heat retaining member 4 and the surface covering member 5, a portion between the core members 2 is folded inward from both sides, thereby forming a bellows structure in which a spiral valley portion 8 is formed at the center portion. It is formed.

  In the above configuration, by obtaining the air conditioning duct 1 processed into the bellows structure, the air conditioning duct 1 is piped using the air conditioning duct 1 in a manner as shown in FIGS. 7 (A) and (B). can do.

  In the case of FIG. 7A, a long air-conditioning duct 1 (for example, 10 [m]) is hung on the ceiling 31 of the room along the wall 32 by a hanging tool 33, and in this case, the room The portion corresponding to the corner of the room is simply a simple operation in which the operator bends the air-conditioning duct 1 at a right angle in the lateral direction as necessary using the characteristics of the bellows structure. It is possible to make piping suitable for

  In the case of FIG. 7B, for example, when piping from the main duct 35 to the branch duct 36 in the back of the ceiling, it is necessary to cross another piping 37 between them. By using the bellows structure, the operator bends the air-conditioning duct 1 in the vertical direction, so that on-site piping from the main duct 35 to the branch duct 36 can be easily performed.

  In this way, the length of the air-conditioning duct 1 to be used for the bent portion can be easily determined by expanding and contracting using the function of the bellows structure.

  According to the above configuration, the belt-like sheet material 10 is attached to the core member 2 having a string-wound spring coil shape in a bellows shape, so that it can be easily bent and stretched so as to easily meet the duct piping conditions. The air-conditioning duct 1 that can be used can be obtained.

  In addition to this, the belt-like sheet material 10 having a configuration in which the copper alloy 10B is vapor-deposited on the polyester film 10A is attached to the core member 2 so that the surface 10X on which the copper alloy 10B is vapor-deposited is inside. Thus, the air conditioning duct 1 having sufficient antibacterial properties can be realized.

  In addition to this, since the heat retaining member 4 made of glass wool plate is attached to the outside of the air guide member 3, the heat retaining work at the construction site can be made unnecessary.

  In the above-described embodiment, the copper alloy 10B is used as the vapor deposition material in the belt-shaped sheet material 10 of the air guide member 3. However, the present invention is not limited thereto, and any other vapor deposition material may be used as long as it includes a metal having a bactericidal action. Various vapor deposition materials may be used. Even in this case, the same effects as those described above can be obtained.

  Moreover, in the above-mentioned embodiment, although the case where the polyester-type film 10A was used as a material which comprises the strip | belt-shaped sheet material 10 of the air guide member 3 was described, not only this but various other synthetic resin materials are used as a film You may use what was formed in the shape.

  Furthermore, although the case where the heat retaining member 4 is provided in the air-conditioning duct 1 has been described in the above-described embodiment, the present invention is not limited thereto, and the heat retaining member 4 may not be provided.

  Furthermore, in the above-mentioned embodiment, although the case where the glass wool board was used as a heat insulation material which comprises the heat retention member 4 was described, not only this but various other heat insulation materials may be used.

  The present invention can be applied to an air conditioning duct.

  DESCRIPTION OF SYMBOLS 1 ... Air-conditioning duct, 2 ... Core member, 2X ... Steel wire, 3 ... Air guide member, 4 ... Thermal insulation member, 5 ... Surface coating member, 6 ... Mountain part, 7 ... Continuous part 8 ... Valley, 10 ... Strip-shaped sheet material, 10A ... Polyester film, 10B ... Copper alloy, 11 ... Adhesive layer.

Claims (3)

A core member having a coiled spring coil shape;
A belt-like sheet material having a structure in which a vapor-deposited material containing a sterilizing metal is vapor-deposited on a synthetic resin material film is attached to the core member in a bellows shape so that the vapor-deposited surface is on the inside. An air-conditioning duct comprising: a wind guide member. The air-conditioning duct according to claim 1, wherein the vapor deposition material is a copper alloy. The air-conditioning duct according to claim 1, further comprising a heat insulating member formed by attaching a heat insulating material to the outside of the air guide member.

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