JPH0572760U - Receptacle packaging structure for plastic pipes - Google Patents

Abstract

(57) [Summary] [Purpose] A plastic pipe receptacle package that can be easily removed during on-site piping work, etc., and in the process of transportation etc., so that the cap does not come off unnecessarily. Provide structure. [Structure] For the receiving portion (2A) of the pipe (2),
In a receptacle packaging structure for a plastic pipe in which a packaging body is fitted to close an end opening of the pipe (2), a cap (4) is fitted into the opening and the receptacle (2A) is also inserted. The bulged annular part (2
A cylindrical cover (1) made of a heat-shrinkable plastic film is heat-shrinked and applied so as to surround B).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plastic pipe used for plumbing water, sewage, etc., in which a packaging body is fitted to the receiving portion in advance and the end opening of the pipe is closed, and the pipe is The present invention relates to a plastic pipe receptacle packaging structure in which a part or all of the plastic pipe is removed when used.

[0002]

[Prior Art]

 The end opening of this type of plastic pipe has a paper bag to prevent damage to the pipe receiving part, to prevent the rubber ring that fits inside the receiving part from coming off, and to prevent dust from entering the inside of the pipe. A wrapping body consisting of is fitted.

[0003]

[Problems to be solved by the device]

 However, the conventional packaging with the paper bag is troublesome and inefficient. Therefore, it is conceivable to fit a synthetic resin cap-shaped package into the opening of the pipe.However, when loading the above-mentioned pipe on a carrier to transport it to the site, or when handling the load such as unloading, There is a risk that it will come off the opening due to some momentum. In addition, the cap may be blown off due to the wind pressure during transportation.

[0004]

[The purpose of the device]

 The present invention was made based on the above circumstances, and it was designed so that it can be easily removed during on-site piping work, etc., and that the cap does not come off during transportation or other processes. It seeks to provide a receptacle packaging structure for plastic pipes.

[0005]

[Means for Solving the Problems]

 Therefore, in the present invention, as clearly shown in the illustrated embodiment, the packaging body is fitted to the receiving portion (2A) of the pipe (2), and the end opening of the pipe (2) is closed. In a plastic pipe receptacle packaging structure that is closed, a cap (4) is fitted into the opening portion and heat-shrinks so as to surround the expanded annular portion (2B) formed in the receptacle portion (2A). Is a heat-shrinkable cylindrical cover (1) made of a flexible plastic film, and preferably the cylindrical cover (1) made of the heat-shrinkable plastic film is outside the cap body (4A). The ring portion (4B) is fitted and held. Further, as shown in FIG. 6, the entire packaging body is formed by a bag body (101) made of a heat-shrinkable plastic film, and the bag body is heat-shrinked in a state where the bag body is fitted into the receiving portion of the pipe. Can also Furthermore, the cylindrical cover (1) made of the heat-shrinkable plastic film has a perforation in the circumferential direction at the receiving end pipe end portion, so that the pipe end portion of the cover (1) can be formed when piping With the chisel and the cap (4) removed, most of the cylindrical cover (1) can be used as a protective film on the outer circumference of the receiving portion of the pipe (2).

[0006]

[Action]

 In such a configuration, something becomes caught on the outer ring portion (4B) of the cap when loading or unloading, or during transportation, or the cap is not Even if the cover (1) receives a strong wind pressure, the cover (1) prevents this catching, and the bulging annular portion (2B) works so that the cover (1) does not fall off and the cap ( It is possible to prevent the detachment of 4). Further, when piping at the site, the cap (4) can be easily removed by removing the cover (1).

[0007]

【Example】

 Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings. 1 and 2 show a first embodiment, in which reference numeral 1 is a cylindrical cover made of a heat-shrinkable plastic film forming a part of a package, and a receiving portion for a plastic pipe 2. 2A and the bulging annular portion 2B formed here are fitted. In the middle of the bulging annular portion 2B, an engaging portion 2C into which a rubber ring 3 for a seal is fitted is bulged and formed at the time of joining pipes during piping. Before attaching the cover 1 to the pipe 2, the cap 4 made of hard synthetic resin is inserted into the receiving portion 2A of the pipe 2 with the cap body 4A, and the outer ring portion 4B of the cap 4A is attached. The cover 1 is fitted in the receiving portion 2A and is detachably attached. After that, when the cover 1 is attached, the outer periphery of the outer ring portion 4B is fitted so as to cover the edge of the cover 1. It is. The outer ring portion 4B has a shape in which the outer periphery of the front end of the cap body 4A is bent into an inverted U-shaped cross section.

In this embodiment, as shown in FIG. 2, the outer ring portion 4B of the cap 4 ends before the engaging portion 2C of the pipe 2, but the second ring of FIG. As shown in the above embodiment, the shape may be extended so that the engaging portion 2C formed on the bulging annular portion 2B can be fitted. Further, in the center of the cap body 4A, as shown in the third embodiment of FIG. 4, a thin film 4C that can be ruptured with a fingertip may be provided integrally or separately. . This makes it easier to remove the cap 4 during piping. Further, the cap body 4A may be deeply embedded in the pipe to suppress the rubber ring 3 as shown in FIG. 2 to prevent it from coming off. Further, although heat-shrinkable plastic films are used as the material of the cover 1 in the above-mentioned examples, polyethylene heat-shrink films such as polyethylene heat-shrink films and polypropylene heat-shrink films are particularly preferable. In order to prevent damage such as scratches, a material having a cushioning property, for example, a foaming sheet or a sheet having an air chamber may be inserted between the cover 1 and the pipe receiving portion, and the cushioning property is previously set. A heat-shrinkable plastic film obtained by laminating a certain material by partial adhesion or the like may be used. Further, as shown in FIG. 5, perforations 1A that are continuous in the circumferential direction can be inserted in the cover 1 to facilitate the removal of the cover 1. The perforations may be a pair of perforations that extend entirely in the axial direction of the cover 1, and a piece may be provided at the end of the pair of perforations.

With such a structure, even when something is caught on the outer ring portion 4B of the cap 4 during handling of a load such as loading and unloading, the cover 1 has a surface thereof. Since the object is slid to prevent the above-mentioned catch and the outer ring portion 4B of the cap 4 is held against wind pressure, the cap 4 can be sufficiently prevented from coming off. Further, when piping is performed on site, the cap 4 can be easily removed by removing the cover 1 by a means such as slitting.

FIG. 6 shows a fourth embodiment of the present invention. In this embodiment, the entire packaging body is formed of a bag body 101 made of a heat-shrinkable plastic film, and the bag body is heat-shrinked in a state of being fitted into the receiving portion of the pipe.

[0011]

[Effect of the device]

 As described in detail above, the present invention is designed such that a cylindrical cover made of a heat-shrinkable plastic film is heat-contracted and attached to the receiving portion of the pipe with the cap fitted in the opening of the pipe. Therefore, it can be easily removed during on-site piping work, etc., and in the process of transportation etc., the cap does not come off due to flooding, damage to the pipe receiving part and removal of the internal rubber ring can be prevented, In addition, practical effects such as preventing dust from entering the pipe can be obtained. Further, in the present invention, the same effect as described above can be obtained by forming the entire package with a bag made of a heat-shrinkable plastic film and heat-shrinking the bag while fitting the bag into the receiving part of the pipe. The resulting structure is simpler.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention.

FIG. 2 is likewise a vertical side view.

FIG. 3 is a vertical sectional side view of a second embodiment of the present invention.

FIG. 4 is a vertical sectional side view of a third embodiment of the present invention.

FIG. 5 is a perspective view of a modified example of the cover.

FIG. 6 is a vertical sectional side view of a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 cover 2 pipe 2A receiving part 2B bulging annular part 2C engaging part 3 rubber ring 4 cap 4A cap body 4B outer ring part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B29K 105: 02 B29L 23:22 4F (72) Inventor Akira Kaneko 1-18, Kyobashi, Chuo-ku, Tokyo No. 1 CAI Kasei Co., Ltd.

Claims (5)

[Scope of utility model registration request] 1. A plastic pipe receptacle packaging structure in which a wrapping body is fitted into a pipe receptacle to close an end opening of the pipe, and a cap is fitted into the opening. A plastic pipe receptacle packaging structure characterized in that a cylindrical cover made of a heat-shrinkable plastic film is heat-shrinked and adhered to the receptacle. 2. The plastic pipe according to claim 1, wherein the cylindrical cover made of the heat-shrinkable plastic film is adapted to fit and hold an outer ring portion of the cap body of the cap. Receptacle packaging structure. 3. A plastic pipe receptacle packaging structure in which a packaging body is fitted to a pipe receptacle portion to close an end opening portion of the pipe, wherein the packaging body is a heat-shrinkable plastic film. A plastic pipe receptacle packaging structure, wherein the plastic pipe is heat-shrinked while being fitted in the receptacle portion of the plastic pipe. 4. The cylindrical cover made of the heat-shrinkable plastic film is provided with perforations in the circumferential direction at the end portion of the receiving tube.
Receptacle packaging structure for the described plastic pipe. 5. The receptacle packaging structure for a plastic pipe according to claim 1, wherein the cylindrical cover made of the heat-shrinkable plastic film is perforated in the axial direction of the pipe.