JP2001090979A - Drain hose for indoor unit of air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve recycle properties. SOLUTION: This drain hose comprises an integral hose 10 made of PP having a body part 11, formed in a bellows-form shape excepting two end parts; a foamed thermal insulation member 20 made of PP to cover the body part 11 of the integral hose 10; and a connection member 30 made of PP to mount the integral hose 10 on a drain discharge pipe 40 of the indoor unit of an air- conditioning device, not shown.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain hose connected to an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art As a drain hose of this type, for example, as shown in FIG. 5, a main body portion 11 in which an iron wire 15 wound in a spiral shape is formed is made of foamed polyethylene (hereinafter, referred to as PE). Polyvinyl chloride (hereinafter, referred to as PVC) is disposed on the skin 16 so that the hose has strength, flexibility, and heat insulation, and is connected to a drain water discharge pipe of an indoor unit (not shown) at its base. A connecting member 17 made of flexible PVC is attached by an adhesive, and a connecting member 1 made of PVC for connecting to a drain hose (not shown) for guiding drain water to the outside at the tip end side.
It is well-known that the structure of FIG.

[0003]

The above-mentioned conventional drain hose is made of PVC which emits harmful chlorine gas when incinerated in the skin of the main body and the connecting members at both ends, and
Separation was difficult because they were connected by an adhesive.

Also, it is difficult to separate the main body into foamed PE, iron wire, and skin, and it is necessary to disassemble the material in order to reuse the used members at the time of disposal, or to perform an optimum treatment according to the material. However, there is a problem that the method is very difficult, and it is necessary to make it easy to dispose of the apparatus.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention has a first construction in which an integral polypropylene hose is covered with a polypropylene foam insulating member. A drain hose for the unit,

[0006] In the drain hose of the first configuration,
A drain hose of a second configuration in which the connection member to the indoor unit main body is made of polypropylene,

[0007] The present invention provides a drain hose of the third configuration, wherein the integrated hose made of polypropylene is formed in a bellows shape except for both end portions in the drain hose of the first or second configuration. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 10 is a body part 11 excluding both ends
Is an integral hose made of polypropylene (hereinafter, referred to as PP) molded in a bellows shape, 20 is a foamed heat insulating member made of PP covering the main body portion 11 of the integral hose 10, and 30 is an air conditioner (not shown) It is a connection member made of PP for attaching to the drain water discharge pipe 40 of the indoor unit of the apparatus.

In the integral hose 10 made of PP, most of the main body portion 11 except the base portion 12 and the tip portion 13 is formed in a bellows shape. For this reason, the integral hose 10 formed to be thin has an increased flexibility and an increased compressive strength.

On the inside of the base side 12 of the integral hose 10,
Two locking grooves 14 are provided at diametrically opposed positions. Each locking groove 14 is provided on the base 12 side of the integral hose 10.
Of the L-shaped locking groove 14 and a projection 41 provided on the outside of the drain water discharge pipe 40. The projections 41 of the drain water discharge pipe 40 are locked in an L-shape by covering the integrated hose 10 from the tapered tip side of the drain water discharge pipe 40 and rotating the integrated hose 10 clockwise. The hose is fitted into the inner side of the groove 14 so that it does not fall out of the drain water discharge pipe 40 even when the integrated hose 10 is pulled in the axial direction.

The distal end 13 of the integral hose 10 is
Like a conventional indoor unit drain hose, it is formed in a slightly tapered shape to facilitate connection with an optional extension drain hose (not shown) for guiding drain water to the outside. The extension drain hose and the integral hose 10 are joined together by inserting the distal end portion 13 of the integral hose 10 into the extension drain hose and winding a tape made of PP.

The connecting member 30 made of PP is an integral hose 10
Has a substantially gourd-shaped cross section on the side facing the base portion side 12, an opening 31 is formed in each of the opposed narrowed portions, and a projection 32 projecting from the opening 31 is provided.
When the fitting hose 10 attached to the drain water discharge pipe 40 is fitted from the distal end side 13 and rotated, the drain water discharge pipe 4
The projection 32 fits into the locking groove 42 provided on the outer surface of the connecting member 30 via the integral hose 10 and connects the integral hose 10 to the connecting member 30.
And the drain water discharge pipe 40.

The main body portion 1 of the integral hose 10 attached to the drain water discharge pipe 40 by the connecting member 30
1 is covered with a foam insulation member 20 made of PP and used.

Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the spirit of the appended claims.

For example, the connecting member 30 may be a member for fixing the integral hose 10 to the drain water discharge pipe 40 by a mechanism other than the above.

[0016]

As described above, since the drain hose of the present invention is made of PP, it does not need to be disassembled at the time of recovery and generates harmful chlorine gas even if it is incinerated. There is no.

According to the third aspect of the present invention, in which most of the integral hose is formed in a bellows shape, conflicting performances such as an increase in flexibility and an increase in compressive strength are simultaneously achieved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a main part (on the base side of an integrated hose) of the present invention.

FIG. 3 is an explanatory view showing a main part (connection member) of the present invention.

FIG. 4 is an explanatory view showing a main part of the present invention (a state of attachment to a discharge pipe).

FIG. 5 is an explanatory diagram showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Integrated hose 11 Main body part 12 Base part side 13 End part side 14 Locking groove 20 Foam insulation member 30 Connection member 31 Opening 32 Projection 40 Drain water discharge pipe 41 Projection 42 Locking groove

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuyuki Igata 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Kenji Tsukamoto 2nd Keihanhondori, Moriguchi-shi, Osaka 5-5-5 Sanyo Electric Co., Ltd. (72) Inventor Masao Nakai 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L050 BF05

Claims (3)

[Claims] 1. A drain hose for an indoor unit of an air conditioner, wherein an integral polypropylene hose is covered with a foam insulating member made of polypropylene. 2. The drain hose according to claim 1, wherein the connection member to the indoor unit main body is made of polypropylene. 3. An integrated hose made of polypropylene is formed in a bellows shape except for both ends.
Or the drain hose of 2.