JP2602450Y2 - Insulated cylinder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat retaining cylinder for keeping heat in an air-conditioning pipe or the like.

[0002]

2. Description of the Related Art As a thermal insulation tube enclosing an air-conditioning pipe, it is actually open.
There is one disclosed in Japanese Patent Application Laid-Open No. 2-41996. This heat insulating cylinder is opened and closed by inserting a slit in the axial direction into a main body made of glass fiber, and the outer peripheral surface is protected by a skin material.

[0003]

In the above-mentioned conventional heat insulation tube, the weather resistance of the skin material is not sufficient. Therefore, when used outdoors, wrap paper or cotton cloth outside the skin material, and The paint is applied from. This exterior work is performed manually and is troublesome, so that it accounts for about 70% of the total construction time for installing the heat insulating material.
Further, when the paint is applied, the weight is greatly increased, and the cost of the support structure and the like is increased.

Further, in the above-mentioned conventional heat retaining cylinder, since the axial dimension of the skin material is shorter than the axial dimension of the main body, it is possible to prevent intrusion of rainwater or the like from the abutting ends of the thermal retaining cylinders. To prevent this, the outer periphery of the butt end must be sealed with tape.

[0005]

According to a first aspect of the present invention, a skin material provided on an outer peripheral surface of a glass fiber tubular body enclosing a pipe is provided by a base material and a surface of the base material. And a fluororesin layer formed on the substrate. In the second invention of the present application, the axial end of the skin material provided on the outer peripheral surface of the glass fiber tubular body surrounding the pipe protrudes from the axial end of the tubular body.

[0006]

[Function] Weather resistance is achieved by forming a fluororesin layer on the surface of base material such as glass cloth, aluminum foil, aluminum foil with mesh-like resin sheets, aluminum kraft paper, etc. In addition, the axial end of the skin material protrudes from the axial end of the tubular main body, so that the sealing performance of the butt portion can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a perspective view of the heat retaining cylinder according to the present invention, FIG. 2 is an axial sectional view of a state in which the outer periphery of the tube is wrapped by the heat retaining tube, and FIG. FIG. 4 is an enlarged cross-sectional view of the skin material.

The heat retaining cylinder 1 is composed of a cylindrical main body 2 and a skin material 3. The cylindrical main body is formed by molding glass fibers having a resin adhered to the surface thereof, and can be easily expanded when wrapping the outer periphery of the tube 4. So that it is cut in the axial direction.

As shown in FIG. 4, the skin material 3 is adhered to the outer peripheral surface of the cylindrical main body 2 by an adhesive 5, and the radial dimension is made larger than the outer diameter dimension of the cylindrical main body 2 so that a part thereof is partially formed. Surplus piece 3a
Further, the axial dimension is made larger than the axial dimension of the cylindrical main body 2, and one end is formed as a protruding piece 3b, and adhesive tapes 6a, 6a are provided on the back sides of the surplus piece 3a and the protruding piece 3b.
b is provided.

Further, as shown in FIG. 4, the skin material 3 has a fluororesin layer 9 formed on a base material 7 with an adhesive 8 interposed therebetween. When a resin paint is used as the fluororesin layer 9, the adhesive 8 is unnecessary, and when a resin sheet is used as the fluororesin layer 9, the adhesive 8 is required. And
When the adhesive 8 is used, if a pigment is mixed in the adhesive 8, the color of the tube can be distinguished, which is convenient. For example, tubes through which hot water passes are colored red, and tubes through which cold water passes are classified into light blue, and these tubes can be distinguished from other tubes at a glance indoors or outdoors.

As the base material, it is appropriate to use glass cloth, aluminum foil, aluminum foil on which a mesh-like resin sheet is laminated, aluminum kraft paper, aluminum kraft paper lined with polyethylene, or the like.

In the above, in order to keep the heat of the tube 4, after wrapping the outer periphery of the tube 4 with the cylindrical body 2 of the heat insulating tube 1, the surplus piece 3a is superimposed on the surface of the skin material 3 and adhered with adhesive tape 6a. Then, after wrapping the tube 4 with the tubular main body 2 of another heat retaining cylinder 1, the protruding piece 3b of the other heat retaining cylinder 1 is superimposed on the surface of the skin material 3 of the heat retaining cylinder 1 to which it has been previously attached. Attach it with the adhesive tape 6b and, similarly to the above, place the surplus piece 3a on the surface of the skin material 3 and attach it with the adhesive tape 6a. By performing such operations continuously, the entire tube 4 is covered with the heat retaining tube.

By sticking the surplus piece 3a and the protruding piece 3b so as to overlap as described above, indoor and outdoor pipes can be kept warm. As shown in FIG. 3, it is preferable that the ends of the surplus piece 3a and the protruding piece 3b be stuck together with tapes 10 and 11 without any gap.

[0014]

[Effects of the Invention] As described above, according to the present invention,
Because the skin material provided on the outer peripheral surface of the glass fiber tubular body that wraps the tube is formed by forming a base material and a fluororesin layer on the surface of the base material, the weather resistance of the heat insulation tube is greatly improved. Therefore, it can be used to keep the temperature of outdoor piping without applying an exterior such as paint. In addition, since it is not necessary to provide an exterior, the operation of covering the pipe with the heat retaining cylinder is greatly simplified.

Further, since the axial end of the skin material provided on the outer peripheral surface of the glass fiber tubular body enclosing the pipe is protruded from the axial end of the tubular body, the heat retaining cylinder is added. In this case, it is possible to reliably prevent rainwater or the like from invading without sealing the joint (butting portion) with tape or the like, and it is not necessary to frequently perform repair work.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heat retaining cylinder according to the present invention.

FIG. 2 is an axial cross-sectional view showing a state where the outer circumference of the tube is wrapped by a heat retaining tube.

FIG. 3 is a radial cross-sectional view of a state where the outer circumference of the tube is wrapped in a heat retaining tube.

FIG. 4 is an enlarged sectional view of a skin material.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Heat insulation cylinder, 2 ... Cylindrical body, 3 ... Skin material, 4 ... Tube, 5,
8: adhesive layer, 7: base material, 9: fluororesin layer.

──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Yuji Sueyoshi 1-10-10 Ueno, Taito-ku, Tokyo Usagiya Building Japan Micro-Gee Wool Co., Ltd. (72) Inventor Takahiko Nishijima 1-10 Ueno, Taito-ku, Tokyo No.10 Usagiya Building Japan Micro-Gee Wool Co., Ltd. (72) Inventor Mitsuru Okamoto 3-8-21 Futaba-no-sato, Higashi-ku, Hiroshima-shi, Hiroshima West Japan Railway Company Hiroshima Branch (72) Inventor Haruo Nomura Hiroshima Hiroshima Hiroshima 3-8-21 Futaba-no-sato, Higashi-ku, Higashi-ku West Japan Railway Company Hiroshima Branch (72) Inventor Katsuharu Takeda 3-8-21, Futaba-no-sato, Higashi-ku, Hiroshima City, Hiroshima Prefecture West Japan Railway Company Hiroshima Branch (72) Inventor Shishido Seiko 3-8-21 Futaba no Sato, Higashi-ku, Hiroshima-shi, Hiroshima West Japan Railway Company Hiroshi In-house examiner Sano Shun (56) References JP-A-46-21298 (JP, A) JP-A-62-188693 (JP, U) JP-A-62-191998 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16L 59/147 F16L 59/02

Claims (4)

(57) [Scope of request for utility model registration] 1. A heat insulating cylinder comprising a glass fiber tubular body enclosing a pipe and a skin material provided on the outer surface of the tubular body, wherein the end of the skin material in the axial direction is cylindrical.
It protrudes from the axial end of the main body, and this protrudes
The adhesive tape is provided on the back of the part.
Heat insulation tube . 2. The heat insulation cylinder according to claim 1, wherein
The skin material has a fluorine resin layer on the surface of the base material
A heat retaining cylinder characterized by the following . 3. The thermal insulation cylinder according to claim 2, wherein
An adhesive layer is interposed between the base material and the fluororesin layer,
Pigment is mixed in this adhesive layer.
Hot cylinder . 4. The thermal insulation cylinder according to claim 2, wherein
The base material is glass cloth, aluminum foil, mesh resin
Aluminum foil, aluminum kraft paper and polyethylene
One of aluminum kraft paper lined with ren
A heat retaining cylinder characterized by the following .