JPH0960955A - Foam duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam duct which is designed to cut down components and easy to construct and capable of reducing a work process and advantageous in terms of the transport aspect of the components. SOLUTION: This foam duct consists of a plurality of board-like duct components 2 which are combined by duct-divided boards. The duct components 2 comprise a foam. The joint surface 3 of each duct component 2 is bonded with each other, thereby forming the foam duct 1. An adhesive tape 5 is pasted on the outside of each duct component 2, thereby fixedly reinforcing each duct.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam duct for air conditioning, ventilation, exhaust, etc., which is composed of a plastic foam body itself.

[0002]

2. Description of the Related Art Conventionally, in ducts for air conditioning, ventilation, exhaust, etc., which have a heat insulating and sound insulating structure, a duct body made of metal or hard plastic is covered with foam. (For example, JP-A-3-123323 or JP-A-6-159586.
Reference).

[0003]

By the way, as described in the above-mentioned publication, in the case where the duct body is covered with the foam, in constructing the duct in a building or the like, first, the duct body is arranged. Since the construction work is performed and then the duct body is covered with foam, the construction process is complicated and it is difficult to shorten the construction schedule.

Further, the conventional duct constituted by the duct main body and the foam covering the duct main body is generally expensive because it has many constituent members, and is also disadvantageous in terms of delivery of the constituent members.

Therefore, the present invention is intended to solve such a problem, and by constructing the duct by the foam itself, the number of constituent members is reduced, the construction is easy and the construction schedule is shortened, Furthermore, it aims at providing the foaming duct which is advantageous also in terms of delivery of the constituent members.

[0006]

A foam duct according to the present invention for achieving the above object is a duct formed by combining a plurality of plate-shaped duct constituent members obtained by dividing the duct. It is made of foam, and is characterized in that an adhesive tape is attached to the outside of each duct constituent member to reinforce and fix each duct for direct use as a duct.

In the present invention, the ducts are formed by adhering the joint surfaces of the duct constituent members, and the joint surfaces of the duct constituent members are formed as slopes so as to form a rectangular tubular duct. It is preferable that the connecting surface forming the inclined surface of the constituent member is bonded.

[0008]

FIG. 1 is a sectional view of a foam duct showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a foam duct, and this foam duct 1 is formed into a rectangular tube shape by combining four plate-shaped duct constituent members 2 obtained by dividing the foam duct.

Each duct constituting member 2 is made of a foam made of foamed polyethylene or the like, and each duct constituting member 2 has an inclined surface so that the joint surfaces 3 thereof are joined to each other to form a rectangular tube shape. The bonding surfaces 3 of the duct constituent members 2 that are bonded to each other are bonded by the double-sided adhesive tape 4 to form the foam duct 1. An adhesive tape 5 is attached to the joint portion of each of the duct constituent members 2 of the foamed duct 1 formed in this way from the outside in the length direction of the duct to reinforce and fix it. The foam duct 1 has an appropriate length, and a duct having a required length is constructed by sequentially extending and connecting it.

FIG. 2 shows a pair of two duct constituent members 2. In the case where two duct constituent members 2 are connected in this manner, the two sets are combined and combined as shown in FIG. 1 to form the foam duct 1. As shown in FIG. 2, by forming the two duct constituent members 2 in advance, the number of parts is reduced, and since it has a flat plate shape, it is advantageous in terms of delivery and storage. It is possible to simplify the construction process at the construction site.

Incidentally, the duct constituent members are not limited to two connected ones, but it is better to use four connected members in order to simplify the construction process.

FIG. 3 shows an example in which the foam duct 1 constructed as shown in FIG. 1 is constructed in a hook shape. Also in this case, one end surface of the foam duct 1a at the lowermost portion in the vertical direction is formed into an opening, and the end surface of the foam duct 1b in the horizontal direction is joined to the opening.

The foam duct according to the present invention can be constructed in an arbitrary direction and form with one length as a unit in addition to the illustrated construction example. Further, the means for adhering the joint surface 3 of each duct component 2 is
Not only the double-sided adhesive tape 4, but also an adhesive or a pressure-sensitive adhesive may be used for bonding, and the reinforcement fixing is not limited to the adhesive tape 5, and various embodiments can be used.

[0014]

According to the present invention, since the duct is formed of the foam itself, the number of constituent members can be reduced, the construction can be facilitated, the construction schedule can be shortened, and the distribution and storage of the constituent members can be facilitated. However, an advantageous foam duct can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a foam duct according to the present invention.

FIG. 2 is a plan view showing a pair of two duct constituent members that form the foam duct of FIG.

FIG. 3 is a perspective view illustrating a construction mode of a foam duct.

[Explanation of reference numerals] 1 foam duct 2 duct component member 3 joining surface 4 double-sided adhesive tape 5 adhesive tape

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location B29L 23:00

Claims (2)

[Claims] 1. A duct configured by combining a plurality of plate-shaped duct constituent members obtained by dividing the duct, wherein the duct constituent member is made of foam, and an adhesive tape is attached to the outside of each duct constituent member. A foam duct characterized in that each duct is reinforced and fixed and used directly as a duct. 2. A duct is formed by adhering the joint surfaces of the duct constituent members together, and the joint surface of the duct constituent members is formed into an inclined surface so as to form a rectangular tubular duct. The foam duct according to claim 1, wherein a connecting surface forming a slope is adhered.