JP2002138622A - Plastic ceiling material and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic ceiling material and a manufacturing method therefor, capable of bringing about reduction in cost and a simplification in terms of the storage management of materials, so as to facilitate the execution of work for constructing a ceiling by reducing the types of constitutive members constituting the ceiling material. SOLUTION: The ceiling material 1 is constituted by combining the paired constitutive members 10 and 10, which are formed in the same shape and directly joined together, in a symmetrical manner in order to constitute the integrally formed ceiling material 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling material constituted by combining a plurality of constituent members, and more particularly to a plastic ceiling material constituting a ceiling of a bathroom and a method of manufacturing the same.

[0002]

2. Description of the Related Art A unit bath in which a bathroom unit is constructed of plastic wall materials and ceiling materials, in which a ceiling wall is formed by joining a plurality of panels, is disclosed in JP-A-9-6.
No. 7892.

[0003]

Since the ceiling of the unit bath is large, it is described in Japanese Patent Application Laid-Open No. 9-67892 that the unit bus is constructed by joining a plurality of panels.

In recent years, many unit baths have a dryer installed on the ceiling so that they can be used as a laundry drying room, but the dryer for that purpose is quite heavy. Therefore, the ceiling wall of the bathroom is required to have sufficient strength and rigidity for installing a dryer.

For this reason, when this kind of ceiling material is made of plastic, it is necessary to increase the strength and rigidity not only of a simple panel shape but also of a three-dimensional hollow double wall structure. Since the material becomes larger and larger, it is difficult to integrally mold the same, and it is more convenient to divide the ceiling member into a plurality of constituent members and form them, and to join each of the constituent members at the time of construction.

Accordingly, the present invention is directed to a ceiling member formed by combining at least a pair of constituent members, and the constituent members constituting the ceiling member are formed by making the pair of constituent members have the same shape. It can be molded with the same mold, simplifying the manufacturing equipment and manufacturing process, reducing the number of types of components constituting the ceiling material, reducing costs and simplifying storage management of materials, It is another object of the present invention to facilitate ceiling construction.

[0007]

In order to achieve the above-mentioned object, the present invention provides a plastic ceiling material described in claims 1 to 6, and a method of manufacturing the ceiling material according to claim 7. It provides the blow molding means described.

[0008] That is, the plastic ceiling material according to claim 1 is a ceiling material formed by combining at least a pair of constituent members, and the pair of constituent members have the same shape, and the pair of constituent members. Are symmetrically joined directly or via other components to form an integral structure.

[0009] The plastic ceiling material according to claim 2 is
The structure according to claim 1, wherein the pair of constituent members are directly joined symmetrically, wherein the pair of constituent members are joined in an overlapping manner or abutting manner.

[0010] The plastic ceiling material according to claim 3 is:
The configuration according to claim 1, wherein the pair of constituent members is symmetrically joined via another constituent member, wherein each joint portion is joined in an overlapped or abutted manner.

The plastic ceiling material according to claim 4 is
In the configuration according to the first, second or third aspect, each constituent member of the ceiling member integrally formed has a hollow double-wall structure.

[0012] The plastic ceiling material according to claim 5 is:
According to a fourth aspect of the present invention, the hollow part of each structural member of the ceiling material is partially or entirely filled with a foam material.

[0013] The plastic ceiling material according to claim 6 is:
In the structure of the first, second, third, fourth or fifth aspect, each component is provided with a cutout for forming a working window or other opening.

[0014] The plastic ceiling material according to claim 7 is:
A method of manufacturing a ceiling material in which at least a pair of components is integrally formed by joining symmetrically directly or via another component, wherein the pair of components is blow-molded with a same molding die of a thermoplastic resin. In the same shape.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings illustrate a plastic ceiling material according to the present invention for constructing a bathroom ceiling wall. 1 is an overall perspective view of a plastic ceiling material according to the present invention, FIG. 2 is an exploded perspective view of the same, and FIG.
It is sectional drawing of the arrow direction.

In the drawings, reference numeral 1 denotes a ceiling material of a bathroom.
The ceiling material 1 has a hollow double-walled structure obtained by blow molding an impact-resistant polystyrene resin. The ceiling material 1
The front wall 2 and the back wall 3 are formed integrally by a side surface 4 surrounding the outer periphery thereof, and a portion surrounded by the front surface 2, the back surface 3 and the side surface 4 forms a hollow portion 5. ing. In addition, the front surface 2 of the ceiling material 1 is a surface forming the ceiling surface in the bathroom, and the rear surface 3 is a surface behind the ceiling.

The back surface 3 of the ceiling material 1 has a curved surface portion 6 protruding on the back surface side and a flat dryer mounting portion 7, and the curved surface portion 6 has a cutout for providing an inspection window. 8 are formed. A cutout 9 for forming a drying wind outlet window is formed in the dryer mounting section 7. The cutout 8 is formed by compressing a wall on the back side of the ceiling and forming a cutout groove 8a and the like welded to the wall on the front side so as to be integrated therewith. The same applies to the resection part 9.

The ceiling member 1 is composed of a pair of components 1 having the same shape.
0 and 10 are joined symmetrically to be integrally formed. Half of the joining ends of the pair of constituent members 10, 10 are overlap receiving portions 11, 11, and the other half is overlap overlapping portion 1.
2 and 12, and a plurality of projecting pieces 13 for connecting the joining ends are provided on the back surface 3 of the joining end. The projecting piece 13 has a bolt insertion hole 14 formed therein. A pair of constituent members 1
Reference numerals 0 and 10 designate the overlapping receiving portions 11 and 11 and the overlapping covering portions 12 and 12 as meshing with each other, and the opposing projections 13 and 13 are fixed with bolts and nuts to form the integral ceiling material 1. Constitute. In addition, the overlap receiving portion 11 and the overlap covering portion 12 can be joined by bonding with an adhesive, or they can be used together. Here, the overlap joining is not limited to the above-described embodiment, and the overlap receiving portion and the overlap covering portion are formed at the joining ends of the constituent members, and when the members are joined symmetrically, the overlapping joining portion is formed. It is possible to obtain the effects of positioning at the time of joining and preventing rattling, and the connection is fixed separately by known means.

As described above, the pair of components 10.10
In a configuration in which the pair of members 10 and 10 are directly joined symmetrically, the pair of members 10 and 10 may be joined to each other in an abutting manner instead of being overlapped. The ceiling material 1 having a hollow double-wall structure integrally formed can be filled with a resin foam material for heat insulation or sound insulation in the whole or a part of the hollow portion (not shown). . As a foam material,
Polyethylene resin, polypropylene resin, ethylene-vinyl acetate copolymer resin, acrylic resin, polyvinyl chloride resin, polystyrene foamed by mixing of inert gas (gas mixing method), foaming agent decomposition method, solvent diffusion method, chemical reaction, etc. Resins, ABS resins, modified polyphenylene oxide resins, polyurethane resins, nylon resins, phenolic resins, urea resins, etc., among which polyethylene resins, polypropylene resins, polyvinyl chloride resins, polystyrene resins, modified polyphenylene oxide resins, It is preferable to use expanded beads which are expanded granular materials.

The ceiling member 1 integrally formed has a structure in which a pair of constituent members 10, 10 are directly joined symmetrically, as described above, and a pair of constituent members 10, symmetrically arranged. If one member is integrally formed by interposing another member between the members 10, it is possible to construct a relatively small, integral and large ceiling material for the pair of members 10, 10 and the other members. . In this case, illustration is omitted.

The ceiling material 1 shown in FIGS. 1 to 3 can be formed into a required size.
1600 (mm), 1600 x 1600 (mm), 16
It is 00 × 2000 (mm).

The resin constituting the ceiling material 1 according to the present invention is:
A plastic having a stiffness of 7000 kg / cm ² or more is preferable, and a high-density polyethylene resin,
Medium density polyethylene resin, polypropylene resin, polyamide resin, polyethylene terephthalate resin, polybutylene terephthalate resin, polystyrene resin, ABS resin,
Blow-moldable thermoplastic resin having excellent rigidity, such as polycarbonate resin, modified polyphenylene oxide resin, or a blend thereof.

The ceiling member 1 according to the present invention is constructed such that a pair of constituent members 10, 10 are symmetrically joined directly or via other constituent members to form an integral body.
Since the reference numerals 0 and 10 have the same shape, the pair of constituent members 10 and 10 can blow-mold a thermoplastic resin using the same molding die, and the molding die integrally forms the ceiling material 1. The blow molding device can be greatly simplified because it can be smaller than the one.

[0024]

According to the present invention, a ceiling member constituted by combining at least a pair of constituent members, wherein the pair of constituent members have the same shape, thereby constituting the ceiling member. Can be molded in the same mold, and the manufacturing apparatus and the manufacturing process can be simplified.
It is possible to reduce the cost and simplify the storage management of materials by reducing the types of components constituting the ceiling material, and to facilitate the construction of the ceiling.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a plastic ceiling material according to the present invention.

FIG. 2 is an exploded perspective view of a plastic ceiling material according to the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathroom ceiling material 2 Front surface 3 Back surface 4 Side surface 5 Hollow part 6 Curved surface part convex to the back side 7 Dryer mounting part 8 Cutting part 8a Cutting groove 9 Cutting part 10 A pair of constituent members 11 Stack receiving part 12 Overlap cover 13 Protrusion piece 14 Bolt insertion hole

Claims (7)

[Claims] 1. A ceiling member formed by combining at least a pair of constituent members, wherein the pair of constituent members have the same shape, and the pair of constituent members is directly or symmetrically connected to another constituent member. A plastic ceiling material characterized by being integrally formed by being joined through an interposition. 2. A plastic ceiling material according to claim 1, wherein the pair of components are directly joined symmetrically to each other, wherein the pair of components are joined in an overlapping or abutting manner. 3. The plastic according to claim 1, wherein the pair of components are joined symmetrically via another component, and each joining portion is joined in a superimposed or butt-like manner. Ceiling material. 4. The plastic ceiling material according to claim 1, wherein each component member of the ceiling material integrally formed has a hollow double wall structure. 5. The plastic ceiling material according to claim 4, wherein the hollow portion of each component of the ceiling material is partially or entirely filled with a foam material. 6. A plastic ceiling material according to claim 1, wherein each of the constituent members is provided with a cutout for forming a working window or another opening. 7. A method of manufacturing a ceiling material in which at least a pair of constituent members are integrally formed by symmetrically joining directly or via another constituent member, wherein the pair of constituent members are heat-treated by the same molding die. A method of manufacturing a plastic ceiling material, comprising forming a plastic resin into the same shape by blow molding.