JP3040336U - Duct packing material - Google Patents

Abstract

(57) [Abstract] PROBLEM TO BE SOLVED: To inexpensively provide a packing material mainly used for an air conditioning duct. SOLUTION: A resin film is attached to a cloth or a resin-coated product is cut into a tape, and the tape (1) is folded along the longitudinal direction, and both side ends (2) of the folded tape (2), The cut end surface (4) does not appear on at least one (3) of (3), and the free ends (5) and (6) of the folding tape are joined by sewing machine sewing (7) or the like. Folding includes butting on both ends, bi-folding, multi-folding more than tri-folding. The release tape (8) is attached to the folded tape surface, or the fiber assembly (9) is interposed in the folding tape.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a packing material used for a joint portion of a duct mainly for air conditioning.

[0002]

[Prior art]

 The requirements for packing materials for air-conditioning ducts are that they have airtightness, cushioning properties, and heat resistance, that fine fibrous dust contained in the packing materials does not scatter in the ducts, and that bolt holes are provided in the packing materials. In this case, the fibers do not loosen apart, and the manufacturer's name can be easily printed on the packing surface. In order to satisfy these requirements, aluminum foil has been conventionally attached to the surface of a packing material made of cloth or the like, but the use of aluminum foil causes a problem of a slightly higher cost. It was

[0003]

[Problems to be solved by the device]

 An object of this invention is to provide a packing material satisfying the above requirements at low cost.

[0004]

[Means for Solving the Problems]

 The means adopted by this device will be described with reference to the drawings. (A) Airtightness is imparted by pasting a resin film on a cloth made of a heat-resistant fiber such as glass fiber or applying a resin. This is cut to form a tape. As shown in FIGS. 1, 2 and 3, this tape (1) is folded along the longitudinal direction and cut on at least one side (2) of both sides (2) and (3) of the folded tape. The end face (4) should not appear. The free ends (5) and (6) of this folding tape are joined (7) to obtain the packing material of the present invention. The free end refers to an end that is separated in a free state. (B) In the packing material of (a), as shown in FIG. 1, the tape (1) is folded from both sides so that the cut end faces (4) are butted against each other, and the free end ( 5), the release tape (8) is attached to the tape (1) via an adhesive so as to cover (6), and the free ends (5), (6) of the folding tape are attached by the adhesive of the attachment. ) Are combined (7). In this folding tape, the cut end faces do not appear on both side ends (2) and (3). (C) In the packing material of the above (b), as shown in FIG. 1, a heat-resistant fiber aggregate (9) made of cloth or the like is interposed in the folded tape along the longitudinal direction. (D) In the packing material of (a) above, as shown in FIG. 2, the tape (1) is folded in half and the free ends (5) and (6) of the folding tape are joined by machine sewing (7). ) Do. This folding tape does not have a cut end surface on one end (2) of both ends. (E) In the packing material of (d) above, as shown in FIG. 2, a heat-resistant fiber assembly (9) made of cloth or the like is interposed in the folded tape along the longitudinal direction. (F) In the packing material of (a), as shown in FIG. 3, the tape (1) is folded into three or more folds, and the free ends (5) and (6) of the folding tape are sewn with a sewing machine. Combine (7). This folding tape does not have a cut end face on one side (2) of both ends. (G) In the packing materials of (d), (e), and (f), as shown in FIGS. 2 and 3, a release tape (8) is attached to one side of the folded tape via an adhesive. Stick along the long direction.

[0005]

[Embodiment of the invention]

 In the description of Paragraph 0004, the non-woven fabrics such as felt, woven fabrics and knitted fabrics are included in the fabrics made of heat resistant fibers such as glass fibers. The application of the resin includes an application method in which the cloth is dipped in a resin liquid. The resin film to be bonded and the type of resin to be applied are appropriately selected. The heat-resistant fiber assembly made of cloth or the like is appropriately selected from non-woven fabrics such as felt, woven fabrics, knitted fabrics, and yarns. Although two examples of FIG. 3A and FIG. 3B have been given as plural folds of three or more folds, they are not limited to these. Use a folding device to fold the tape. As it passes through this device, the fiber assembly that is fed with the tape is wrapped with the tape. The folding tape and the release tape are attached to each other by superposing them with an adhesive and passing them between the drawing rollers.

The method of using the packing material in the duct will be described. The packing material is sandwiched between two flanges facing each other provided at each end of the duct joining portion. The sandwiching method is as follows: cut the packing material to the required length, peel off the release tape attached to the surface, place the side edge of the tape where the cut end surface does not appear inside, and Attach it to the flange of. The other flange is brought into contact with it and crimped by bolting or the like. When bolting, make bolt holes in the packing material.

[0007]

[Effect of the invention]

 The effects of this device are as follows. (A) Since the packing material of the present invention is made by bonding resin film to cloth made of heat resistant fiber such as glass fiber or applying resin, the packing material for air conditioning is used. As a result, it is possible to satisfy the requirements of airtightness, cushioning property, and heat resistance, which are indispensable. (B) Since the aluminum foil in the conventional product is not used, the manufacturing cost can be reduced. (C) This device is made by folding, but since the cut end face of the tape does not appear on at least one of the both side ends of the tape, the side end where this cut end face does not appear is inside (air flow in the duct). It is possible to prevent fine dust from scattering from the packing material, which is the most problematic in air conditioning ducts, into the duct by placing it on the side facing the () and mounting it between the duct flanges. At the same time, airtightness can be maintained. (D) Since the surface of the packing material is coated with resin, there is no fraying of the fibers when the bolt holes are drilled, and the manufacturer's name can be printed easily. (E) The tape can be completed by joining the free ends of the folding tape. (F) By interposing the fiber assembly in the folded tape, the thickness of the tape can be increased and the cushioning property can be enhanced. Since the flange surface of the duct is rough, the cushioning property of the packing material is important in order to improve the airtightness. (G) By folding the tape into three or more folds, the thickness of the tape can be increased and the cushioning property can be enhanced, as in the above case. (H) Since the release tape is attached to the tape surface via the adhesive, the workability in mounting the packing material in the duct can be improved. The sticking of the release tape described in paragraph 0004 (b) serves both to improve the workability and to join the tape free ends.

[Brief description of the drawings]

FIG. 1 illustrates a packing material of the present invention. (A) is a perspective explanatory view, (b) is sectional explanatory drawing.

FIG. 2 illustrates a bi-fold packing material of the present invention. (A) is a perspective explanatory view, (b) is sectional explanatory drawing.

FIG. 3 illustrates a packing material having three or more folds according to the present invention. (A) is sectional explanatory drawing of three fold, (b) is sectional explanatory drawing of four fold.

[Explanation of symbols]

1 ... tape, 2, 3 ... side end, 4 ... cutting end face, 5,
6 ... Free end, 7 ... Coupling part, 8 ... Release tape, 9 ...
Fiber aggregate.

Claims (7)

[Utility model registration claims] 1. An airtightness is imparted by laminating a resin film to a cloth made of a heat-resistant fiber such as glass fiber, or by coating a resin, and this is cut into a tape shape, Folding this tape (1) along the lengthwise direction, the side edges (2) of the folded tape,
A packing for a duct characterized in that the cut end surface (4) does not appear on at least one side (2) of (3), and the free ends (5) and (6) of this folding tape are joined (7). Material. 2. A tape (1) is cut from both sides to an end surface (4).
The release tape (8) is attached to the tape (1) via an adhesive so as to cover the free ends (5) and (6) of the folding tape. The packing material for a duct according to claim 1, wherein the free ends of the folding tapes are joined by an adhesive. 3. The duct packing material according to claim 2, wherein a heat-resistant fiber assembly (9) made of cloth or the like is provided in the folded tape along the longitudinal direction. 4. The duct according to claim 1, wherein the tape (1) is folded in half and the free ends (5) and (6) of the folding tape are joined by sewing (7). Packing material. 5. The packing material for ducts according to claim 4, wherein a heat-resistant fiber assembly (9) made of cloth or the like is provided in the folded tape along the longitudinal direction. 6. The tape (1) is folded into three or more folds, the free end (5) of the foldable tape,
The packing material for ducts according to claim 1, wherein (6) is joined by sewing (7). 7. The release tape (8) is adhered to one side of the folded tape along the longitudinal direction via an adhesive agent, according to any one of claims 4, 5 and 6. Duct packing material.