JP2011032710A - Synthetic resin hollow member and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a synthetic resin hollow member and a method for manufacturing the synthetic resin hollow member easily treated without the end impairing appearance. <P>SOLUTION: The synthetic resin hollow member (1) includes a body part (10) including a plurality of hollow parts (18) having open ends, and synthetic resin sheet members (40, 50) fixed to the open ends by heat welding to seal the open ends. The melting temperature of the synthetic resin sheet member is higher than that of the body part. The method for manufacturing such a synthetic resin hollow member is also provided. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a synthetic resin hollow material and a method for producing a synthetic resin hollow material.

  Synthetic resin multilayer boards with multiple hollow parts, formed by connecting the front and back surfaces with multiple ribs, are used for lighting exterior materials, roofing materials, wall materials, partition materials, window materials, etc. ing. In such a synthetic resin multilayer material, the end portion is open, so if the end treatment is not performed, sawdust enters the hollow portion and deteriorates the appearance, or outside air enters the hollow portion. There was a problem that condensation occurred.

  Therefore, the end portion of the synthetic resin multilayer material is cut by thermocompression bonding such a synthetic resin multilayer material so as to be sandwiched from above and below by the upper thermocompression bonding tool and the lower thermocompression bonding tool. Are known to be hermetically bonded (see, for example, Patent Document 1).

JP 2008-214885 A

  However, when the end treatment is performed by fusing, a projecting sealed end portion is produced at the end portion, the appearance of the synthetic resin multilayer material is deteriorated, or a plurality of synthetic resin multilayer materials are attached. In some cases, the fitting dimension of the frame body is long.

  Then, an object of this invention is to provide the manufacturing method of the synthetic resin hollow material which made it possible to eliminate said problem, and a synthetic resin hollow material.

  Another object of the present invention is to provide a synthetic resin hollow material whose end is easily processed without impairing the appearance, and a method for producing such a synthetic resin hollow material.

  In order to solve the above-mentioned problems, a synthetic resin hollow material according to the present invention includes a main body portion including a plurality of hollow portions having open end portions, and heat welding to the open end portions so as to seal the open end portions. It has a fixed synthetic resin sheet material, and the melting temperature of the synthetic resin sheet material is higher than the melting temperature of the main body.

  Further, in the synthetic resin hollow material according to the present invention, the sealing surface sealed with the synthetic resin sheet material is substantially flat, and the angle formed by the sealing surface and the front surface and the back surface of the main body portion is substantially a right angle. It is preferable that the opening end is sealed with a synthetic resin sheet material, so that the synthetic resin hollow material has a plurality of independent hollow portions separated from each other.

  In the method for producing a synthetic resin hollow material according to the present invention, the synthetic resin sheet material is pre-dried, and pre-dried by heat welding to the open end portion of the main body portion including a plurality of hollow portions having open end portions. And a melting temperature of the synthetic resin sheet material is higher than a melting temperature of the main body.

  According to the present invention, the main body portion does not cause a problem that the appearance of the synthetic resin hollow material is deteriorated or the fitting dimension of the frame body becomes long when a plurality of synthetic resin hollow materials are attached. It became possible to seal the opening edge part of this by a synthetic resin sheet material.

It is a perspective view of an example of the synthetic resin hollow material concerning the present invention. 4 is a diagram illustrating an example of an opening end portion of the main body portion 10. FIG. It is the figure which showed an example of the manufacturing process of the synthetic resin hollow material. It is a figure which shows an example of the weathering processing method at the time of outdoor use of the synthetic resin hollow material.

  Hereinafter, a synthetic resin hollow material and a method for producing a synthetic resin hollow material according to the present invention will be described with reference to the drawings. However, it should be noted that the present invention is not limited to the following description and extends to the invention described in the claims and equivalents thereof.

  FIG. 1 is a perspective view of an example of a synthetic resin hollow material according to the present invention.

  As shown in FIG. 1, a synthetic resin hollow material 1 includes a main body portion (wall body) 10 including a plurality of hollow portions, and synthetic resin sheet materials 40 and 50 that seal the opening end of the main body portion 10. Consists of The synthetic resin hollow material 1 is continuously provided and used for a lighting outer wall surface material, a lighting opening filler, a roofing material, and the like. Since the synthetic resin hollow material 1 is lighter than a lighting surface material such as glass or a glass block, it has a characteristic that a wide lighting surface can be easily realized.

  The main body 10 is formed by extruding a lightly colored translucent resin (polycarbonate), and has a continuous protrusion 20 and a continuous recess 30 at both left and right ends in the figure. Open ends at the top and bottom. Therefore, actually, an internal partition wall, which will be described later, can be seen through, but that point is not shown in FIG. Further, a light-resistant paint containing an ultraviolet absorber is applied to the surface of the outdoor side face plate 11 of the main body 10 or a weatherproof layer containing an ultraviolet absorber is provided by coextrusion molding. Processing is performed to prevent fading. It should be noted that such processing is not necessary when it is placed indoors.

  The continuous protrusion 20 has a hollow shape having a U-shaped cross section with a slightly expanded tip. A hollow protrusion 21 having a U-shaped cross section is disposed in the vicinity of the continuous recess 20. The continuous recess 30 includes a hollow first arm portion 31 and a second arm portion 32 that form a recess for connecting with the continuous protrusion 20. When the continuous concave portion and the continuous convex portion are continuously provided, the cross-section is T-shaped by the small concave portion between the protruding portion 21 and the continuous convex portion 20, the protruding portion 21, the small concave portion 33, and the second arm portion 32. And a fixture (not shown) for connecting the synthetic resin hollow material and the building frame can be inserted into the space having a T-shaped cross section.

  The synthetic resin hollow material can be easily connected to each other by pressing the continuous convex portion 20 of another synthetic resin hollow material into the continuous concave portion 30 of a certain synthetic resin hollow material from the direction of arrow A in FIG. Can be set. Therefore, it becomes possible to form the lighting wall of various dimensions by connecting a plurality of synthetic resin hollow materials.

  The synthetic resin sheet material 40 is made of a lightly colored, translucent resin (polycarbonate) having a thickness of 0.5 mm. In order to seal the upper opening end portion of the main body 10 in the drawing, heat welding is performed. It is fixed by. Moreover, the synthetic resin sheet material 50 for sealing the lower opening end of the main body 10 in the figure is similarly fixed by thermal welding. In addition, although the thickness of the synthetic resin sheet materials 40 and 50 is 0.5 mm in this example, it is preferably 0.2 mm or more and 3 mm or less. If it is 0.2 mm or less, there is a possibility that it cannot be completely sealed due to a hole or the like. If it is 3 mm or more, it takes time for heating with the plate heater 110 described later, and heating of the surface not in contact with the plate heater 110 becomes insufficient. This is because sufficient melting strength may not be obtained.

  Further, the melting temperature of the synthetic resin sheet materials 40 and 50 is set to be higher than the melting temperature of the main body 10. In the case of this example, the melting temperatures of the synthetic resin sheet materials 40 and 50 were 240 degrees, and the melting temperature of the main body 10 was 220 degrees. However, the melting temperature is not limited to these values, and may be varied based on the resin used. The “melting temperature” is a temperature measured based on JIS K7121.

  FIG. 2 is a diagram illustrating an example of the opening end of the main body 10.

  FIG. 2 shows the upper open end of the main body 10 before fixing the synthetic resin sheet material 40 in FIG. As shown in FIG. 2, the portions other than the continuous protrusions 20 and the continuous recesses 30 of the main body 10 include an indoor side plate 11, an outdoor side plate 12, a partition wall 13 arranged perpendicular to the indoor side plate 11, and a chamber It is comprised from the partition 14 and 15 arrange | positioned in parallel with the inner surface board 11, the partition 16 arrange | positioned diagonally with respect to the indoor side board 11, and the partition 17 arrange | positioned orthogonally to the partition 16. FIG.

  The main body 10 is penetrated in the direction of arrow B in FIG. 1 by the continuous protrusion 20, the continuous recess 30, the indoor side plate 11, the outdoor side plate 12, and the partition walls 13 to 17. Independent hollow portions 18a to 18s are formed. In addition, in the main-body part 10 shown in FIG. 1, 11 sets of the hollow parts 18a-18k exist.

  FIG. 3 is a diagram showing an example of the manufacturing process of the synthetic resin hollow material 1.

  First, the synthetic resin sheet materials 40 and 50 are placed in a high-temperature tank 100 set at 80 ° C. for 8 hours, and preliminary drying is performed (see FIG. 3A). Polycarbonate contains moisture, and when heated, fine bubbles are generated as the moisture evaporates. The generation of fine bubbles is not preferable because the transparency changes, the appearance of the synthetic resin hollow material is impaired, and the strength may decrease. Therefore, preliminary drying for preventing foaming is performed, and preparation is performed so that foaming does not occur in the synthetic resin sheet materials 40 and 50 at the time of heat welding described later.

  Next, the opening end of the main body 10 is placed on the plate heater 110 set at 240 degrees using a predetermined jig through a preheated synthetic resin sheet 40 having a thickness of 0.5 mm. And press-bond (see FIG. 3B). The plate heater 110 has a heating region that covers the entire open end of the main body 10. The temperature of the plate heater 110 is preferably within the range of the melting temperature ± 10 ° C. of the synthetic resin sheet materials 40 and 50. If it is lower than the melting temperature by 10 ° C. or more, the synthetic resin sheet materials 40 and 50 may not be sufficiently melted, so that there is a possibility that sufficient heat welding strength cannot be obtained. This is because when the resin sheet materials 40 and 50 are completely melted, the plate shape cannot be maintained and the appearance may be deteriorated.

  As described above, the melting temperature of the synthetic resin sheet material 40 is 240 degrees, and the melting temperature of the main body 10 is 220 degrees. Therefore, the end of the opening end of the main body 10 is moved by the heat of the plate heater 110. It melts prior to the synthetic resin sheet material 40 and is thermally welded to the synthetic resin sheet material 40 that is also at a high temperature. Therefore, the synthetic resin sheet material 40 is fixed so as to seal the opening end of the main body 10.

  When the synthetic resin sheet 40 is fixed so as to seal the opening end of the main body 10 after a predetermined time (for example, after 12 seconds), it is cooled away from the plate heater 110 (FIG. 3). (See (c)). By using the plate heater 110, the surface (sealing surface) of the synthetic resin sheet material 40 becomes substantially flat, and the sealing surface and the outdoor side surface plate 11 (front surface) and the indoor side surface plate 12 (back surface) of the main body 10. The angle formed by) is substantially a right angle. Therefore, it is possible to fix the synthetic resin sheet material 40 to the main body 10 very well in appearance.

  After cooling, trimming to the shape of the opening end of the main body 10 with a jig such as a cutter, and sealing of one opening end is completed (see FIG. 3D). The steps (a) to (d) of FIG. 3 are performed again on the preheated synthetic resin sheet material 50 having a thickness of 0.5 mm, and the sealing of the opening ends at both ends of the main body 10 is completed. It becomes the synthetic resin hollow material 1 shown in FIG.

  In the synthetic resin hollow material 1, since both opening end portions of the main body portion 10 are sealed by the synthetic resin sheet materials 40 and 50, a plurality of mutually isolated plural formed on the main body portion 10. Each independent hollow part 18a-18s will be sealed, respectively. Therefore, even if water vapor or the like enters one hollow portion and causes the inside to become clouded white, it becomes difficult to spread to other hollow portions, and deterioration of the appearance of the synthetic resin hollow material 1 can be prevented. .

  FIG. 4 is a diagram illustrating an example of a weathering treatment method when the synthetic resin hollow material 1 is used outdoors.

  Fig.4 (a) is a figure which shows an example of the weathering processing method for utilizing the main-body part 10 outdoors, when the opening edge part of the main-body part 10 is not sealed by the synthetic resin sheet material. As shown in FIG. 4A, the opening end of the main body 10 is first wrapped with an aluminum sheet 200 so that water vapor or the like does not enter from the opening end, and then a frame 210 made of an aluminum material is fitted. Since it is not preferable in terms of appearance that the aluminum sheet 200 or the like can be seen from the outside, it is designed so that the fitting dimension W2 of the frame body 210 is longer than the length W1 of the aluminum sheet 200 protruding from the opening end to the surface side. There must be.

  FIG.4 (b) is a figure which shows an example of the weathering method for utilizing the synthetic resin hollow material 1 outdoors. As shown in FIG. 4 (b), the opening end of the main body 10 is already sealed with the synthetic resin sheet materials 40 and 50. Therefore, an aluminum sheet 200 as shown in FIG. 4 (a) is further provided. There is no need. Therefore, it is not necessary to lengthen the fitting dimension side W3 of the frame body 220 made of aluminum or the like in consideration of the aluminum sheet 200, and W2> W3 can be set. Accordingly, there is an advantage that the frame body 220 for the synthetic resin hollow material 1 can be configured at low cost.

  The dimensions, shapes, coloring, and the like of the main body and the synthetic resin sheet material described above are merely examples, and the present invention is not limited thereto. Therefore, the present invention can be applied to any synthetic resin hollow material having a plurality of hollow portions regardless of dimensions, shapes, coloring, and the like.

DESCRIPTION OF SYMBOLS 1 Synthetic resin hollow material 10 Main-body part 20 Consecutive convex part 30 Contiguous concave part 40, 50 Synthetic resin sheet material 100 High temperature tank 110 Plate heater

Claims (7)

A synthetic resin hollow material,
A main body including a plurality of hollow portions having an open end; and
In order to seal the opening end portion, and having a synthetic resin sheet material fixed to the opening end portion by heat welding,
The melting temperature of the synthetic resin sheet material is higher than the melting temperature of the main body,
A synthetic resin hollow material.   2. The synthetic resin according to claim 1, wherein a sealing surface sealed with the synthetic resin sheet material is substantially flat, and an angle formed by the sealing surface and the front surface and the back surface of the main body portion is substantially a right angle. Hollow material made.   The synthetic | combination of Claim 1 or 2 with which the said synthetic resin hollow material has the several independent hollow part isolated from each other by sealing the said opening edge part with the said synthetic resin sheet material. Resin hollow material.   The said synthetic resin sheet material fixed to the said main-body part is a synthetic resin hollow material as described in any one of Claims 1-3 which is a pre-dried thing.   The synthetic resin hollow material according to claim 4, wherein the synthetic resin sheet is fixed to the main body portion by pressure-bonding the main body portion to a heater through the pre-dried synthetic resin sheet. . A method for producing a synthetic resin hollow material,
Pre-drying the synthetic resin sheet material;
Fixing the pre-dried synthetic resin sheet material by heat welding to the open end of the main body including a plurality of hollow portions having open ends, and
The softening temperature of the synthetic resin sheet material is higher than the softening temperature of the main body,
A method for producing a synthetic resin hollow material.   The step of fixing the synthetic resin sheet material includes crimping a main body portion to a heater through the pre-dried synthetic resin sheet material. Production method.

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