Method for making lampshade using rush grass

Abstract

To provide a method for making a lampshade using rush grass, capable of maximizing good qualities of a rush grass material.SOLUTION: A method for making a lampshade using rush grass comprises: chopping rush grass into small pieces and mixing them with liquid woodworking adhesive to make a state where the adhesive is applied to the surface of the rush grass; removing the rush grass from the mixture liquid, and sandwiching the rush grass between two silicon-coated sheets with resin adhesive sprayed on the surface to form a rush grass sheet; sandwiching the rush grass sheet between inner and outer resin pipes, surrounding and fixing an outer peripheral surface of the rush grass sheet, and solidifying the rush grass sheet into a cylindrical shape; and removing the resin pipes to create a lampshade.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method for making a lampshade from rush grass, in which the main body of the lampshade is made by processing the rush grass. [Background technology]

[0002] Conventionally, lighting fixtures made from processed rush grass have been thought of as using rush grass as a cover for a light bulb, but even if rush grass is simply used as a cover, it can be mixed into the cover itself or attached to the surface of the cover material. However, it is difficult to bring out the quality and atmosphere of the rush grass material by simply using it.

[0003] The document discloses a lighting fixture with a cylindrical shade portion formed by weaving individual rush grass strands together with thread to form a blind-like shape, rolling this blind-like rush grass into a tube, and then gluing rush grass paper made by filtering the rush grass to the inside of the tube to fix the shape. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-345005 Summary of the Invention [Problem to be solved by the invention]

[0005] The lighting fixture described in Patent Document 1 allows the faint light that passes through the rush paper to shine through the bamboo blinds, creating a unique, calming atmosphere like sunlight filtering through the trees. However, by using rush paper, the quality of the material that comes from the rush alone is halved, just like in conventional lighting fixtures that use rush. In addition, the bamboo blinds are, of course, arranged in a fixed direction, and by their very nature, the light emitted from the light source is perceived by the viewer as monotonous.

[0006] The present invention has been made in consideration of the above problems, and has an object to provide a method for making a lampshade from rush grass that can maximize the good qualities of the rush grass material. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems of the prior art, the method of making lampshades from rush grass of the present invention is characterized in that rush grass is chopped, mixed with liquid woodworking adhesive, and the adhesive is applied to the surface of the rush grass, and the rush grass is removed from the mixture and sandwiched between two silicon-coated sheets with resin adhesive sprayed on the surface to form a rush grass sheet, and the rush grass sheet is sandwiched between inner and outer resin pipes to surround and fix the outer periphery of the rush grass sheet, solidifying it into a cylindrical shape, and then the resin pipes are removed to create the lampshade.

[0008] Another feature is that in the final process, lacquer is sprayed onto the inside and outside surfaces of the cylindrical lampshade. Effect of the Invention

[0009] According to the present invention, the rush grass is cut into pieces, mixed with a liquid woodworking adhesive, and the adhesive is applied to the surface of the rush grass. The rush grass is removed from the mixture and sandwiched between two silicon-coated sheets with resin adhesive sprayed on the surface to form a rush grass sheet. The rush grass sheet is sandwiched between inner and outer resin pipes, and the outer periphery is surrounded and fixed to solidify the rush grass sheet into a cylindrical shape. The resin pipes are then removed to create the rush grass sheet. This makes it easy to form the rush grass sheet into a sheet shape, facilitating subsequent processing work. By sandwiching the rush grass sheet between the resin pipes and then removing the resin pipes, a cylindrical rush grass sheet can be easily formed. This makes it easy to form a cylindrical lampshade, while also creating the natural atmosphere of the rush grass, and has the effect of creating the natural atmosphere of the rush grass in the living space.

[0010] In addition, spraying lacquer onto the inside and outside surfaces of the cylindrical lampshade in the final process has the effect of firmly maintaining the shape. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a cylindrical lampshade made of rush grass according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a flow diagram showing the steps of a method for making a lampshade from rush grass according to an embodiment of the present invention. [Diagram 3] 1A to 1C are explanatory diagrams showing a bonding solution application step according to an embodiment of the present invention. [Figure 4] FIG. 2 is an explanatory diagram showing a rush sheet forming process according to one embodiment of the present invention. [Diagram 5] 1A to 1C are explanatory diagrams showing a lampshade molding process according to one embodiment of the present invention. [Figure 6] FIG. 2 is an explanatory diagram showing a lacquer spraying process according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The gist of this invention is that the rush grass is chopped, mixed with liquid woodworking adhesive, the adhesive is applied to the surface of the rush grass, the rush grass is removed from the mixture, the rush grass is sandwiched between two silicon-coated sheets with resin adhesive sprayed on the surface to form a rush grass sheet, the rush grass sheet is sandwiched between inner and outer resin pipes, the outer periphery is surrounded and fixed, the rush grass sheet is solidified into a cylindrical shape, and then the resin pipes are removed to create the product. Another feature is that in the final process, lacquer spray is sprayed on the inner and outer surfaces of the cylindrical lampshade.

[0013] Hereinafter, an embodiment of the method for making a lampshade using rush grass according to the present invention will be described with reference to the accompanying drawings. The following embodiment is an example of the present invention and does not limit the technical scope of the present invention.

[0014] FIG. 1 is a perspective view of the overall appearance of a cylindrical lampshade 1 formed according to the present invention. FIG. 2 is a flow diagram explaining a method for producing the lampshade 1. FIG. 3 is an explanatory diagram showing the bond solution application step S2. FIG. 4 is an explanatory diagram showing the rush sheet formation step S3, in which FIG. 4(a) shows a schematic exploded view and FIG. 4(b) shows a schematic cross-sectional view. FIG. 5 is an explanatory diagram showing the lampshade molding step S5, in which FIG. 5(a) shows a schematic exploded view and FIG. 5(b) shows a schematic cross-sectional view. FIG. 6 is an explanatory diagram showing the lacquer spray spraying step S7. The steps for producing the cylindrical lampshade 1 are explained below.

[0015] First, the cut rush grass 10 is dried and chopped into pieces of 10 to 12 centimeters (rush chopping process S1). As shown in Fig. 3, the chopped rush grass 10 is stored in a container 2, and a bonding solution 3 made by mixing equal amounts of water 30 and woodworking bond 31 is poured in, so that the bonding solution 3 is applied to the surface of the rush grass 10 (bonding solution application process S2).

[0016] Next, as shown in FIG. 4, two sheets of cooking sheet 40 as silicon coating sheet 4 are stacked and shredded rush 10 coated with bonding solution 3 is interposed between them (rush sheet forming step S3).

[0017] That is, the rush grass 10, which has been mixed with the bond solution 3 and has the adhesive applied to its surface, is taken out of the bond solution 3, and a resin coating agent 41 is sprayed on a cooking sheet 40 to form the surface of the rush grass 10, which is sandwiched between two silicon-coated sheets 4 to form a paper-like rush grass sheet 5.

[0018] More specifically, a cooking sheet 40 is laid on a board material 42 having a certain thickness and strength, such as plywood. A resin coating agent 41 is applied to the laid cooking sheet 40 to form a silicone-coated sheet 4. The rush grass 10 coated with the bond solution 3 is spread sparsely over the silicone-coated sheet 4. The sparsely spread rush grass 10 is covered with another silicone-coated sheet 4 that has been prepared in advance. Another board material 42 is placed on top of that, and pressure is applied with a clamping device or the like to sandwich it from above and below. It is left in this state for at least a day until the bond solution 3 applied to the rush grass 10 dries, after which the board material 42 and silicone-coated sheet 4 are peeled off, and the rush grass sheet 5 formed into a sheet shape using the bond solution 3 is taken out.

[0019] The reason why the silicone coating sheet 4, which is a cooking sheet 40 coated with a resin coating agent 41, is used as the sheet for sandwiching the rush 10 coated with the bond solution 3, is that the resin coating agent 41 makes it easy to peel off even after the bond solution 3 has hardened.

[0020] Next, the bond solution 3 is sprayed onto two newly prepared silicon-coated sheets 4 using a spray bottle or the like, a rush sheet 5 is laid on the surface of one of the silicon-coated sheets 4 onto which the bond solution 3 has been sprayed, and another silicon-coated sheet 4 is placed on top of it with the surface onto which the bond solution 3 has been sprayed facing downward (rush sheet softening process S4).

[0021] By sandwiching the rush sheet 5 between the silicon coating sheet 4 on which the bond solution 3 has been newly sprayed, the dry bond solution 3 that has hardened the rush sheet 5 becomes moist, and the entire rush sheet 5 softens while maintaining its sheet shape.

[0022] Furthermore, the rush sheet 5 in this state is softened by the bond solution 3 sprayed on the silicon coating sheet 4, and the adhesive function of the bond solution 3 can impart a certain degree of hardening function to the rush 10 after drying.

[0023] The newly sprayed bond solution 3 is sprayed to give the rush sheet 5 a certain degree of flexibility, so it may be sprayed not only on the silicon coating sheet 4 but also on the front and back surfaces of the rush sheet 5, or it may be sprayed only on the front and back surfaces of the rush sheet 5.

[0024] The rush sheet 5 thus softened to a certain degree is formed into a cylindrical lampshade 1 by a cylindrical pipe mold 6 made of polyvinyl chloride or the like, as shown in FIG. 5 (lampshade forming process S5).

[0025] That is, two cylindrical pipe molds 6 with large and small diameters (large diameter pipe mold 60, small diameter pipe mold 61) are aligned, and the softened rush sheet 5 is surrounded on the outer surface of the small diameter pipe mold 61, and the outer surface is further surrounded by the large diameter pipe mold 60, and the rush sheet 5 is sandwiched between the two large and small pipe molds 6. This rush sheet 5 is dried for one day or more in the sandwiched state.

[0026] In this case, the small diameter pipe mold 61 is shaped like a split pipe with a cut (slit 611) made in the longitudinal direction. A metal plate 62 such as a zinc plate is abutted against this slit 611 to surround the rush sheet. In this way, the gap caused by the difference in diameter between the large diameter pipe mold 60 and the small diameter pipe mold 61 is reduced, and the rush sheet 5 sandwiched between the large diameter pipe mold 60 and the silicon coating sheet 4 and the small diameter pipe mold 61 can be reliably in close contact.

[0027] In addition, the large diameter pipe type 60 may be divided into two in the longitudinal direction, and when the large diameter pipe type 60 surrounds the rush sheet 5, it may be tightened by wrapping a metal band or the like. By configuring the large diameter pipe type 60 in this way, the airtightness with the rush sheet 5 can be further increased.

[0028] The rush sheet 5 is surrounded by the small diameter pipe mold 61 in this manner, and the surrounding rush sheet 5 is further stacked on top of the large diameter pipe mold 60, and the rush sheet 5 is sandwiched between the inner and outer pipe molds 6. As the bond solution 3 hardens between the pipe molds 6, the rush sheet 5 sandwiched between the pipe molds 6 is formed into a cylindrical shape.

[0029] The outer periphery of the rush sheet 5 in this state is surrounded and fixed to solidify the rush sheet 5 into a cylindrical shape, and then the pipe mold 6 and the silicon coating sheet 4 are removed to create a cylindrical lampshade 1 made of rush 10 (pipe mold removal process S6). At this time, the rush 10 protruding unevenly at the top and bottom may be chopped up to form a neat cylindrical shape.

[0030] As a final step, as shown in FIG. 6, a volatile paint made by dissolving acrylic resin or nitrocellulose in a highly volatile solvent such as toluene or acetone, i.e., lacquer spray 7, is sprayed onto the inside and outside surfaces of the cylindrical lampshade 1 (lacquer spray spraying step S7). By spraying the lacquer spray 7, the paint is expected to harden and further fix the shape. The lacquer spray 7 used at this time can be any type of axe, but it is preferable to use a clear lacquer spray 7 that does not impair the texture of the rush grass 10.

[0031] As shown in FIG. 1, the lampshade 1 may be provided with an annular upper plate 11 and a circular or annular cover body 12 at the upper end of the cylindrical lampshade 1 body, and a circular bottom plate 13 at the lower end, if necessary.

[0032] The above-mentioned explanation of the method M for making a lampshade from rush grass is one example of the present invention, and the present invention is not limited to the above-mentioned embodiment. Therefore, even if it is not the above-mentioned embodiment, various modifications are possible according to the design, etc., as long as they do not deviate from the technical idea of ​​the present invention. In addition, the above-mentioned various effects are merely a list of preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in this embodiment. [Explanation of symbols]

[0033] How to make a lampshade using rush grass 1. Lampshade 10 Grass 11 Upper Plate 12 Lid 13 Bottom plate 2 containers 3. Bond solution 30 water 31 Wood glue 4 Silicone coating sheet 40 Cooking Sheet 41 Resin coating agent 42 Board material 5. Igusa sheet 6 Pipe type 60 Large diameter pipe type 61 Small diameter pipe type 611 Split cut 62 Metal plate 7. Lacquer Spray

Claims

1. This method for making a lampshade using rush grass is characterized in that rush grass is cut into small pieces, mixed with a liquid adhesive, the adhesive is applied to the surface of the rush grass, the rush grass is removed from the adhesive, the rush grass is sandwiched between two silicon-coated sheets having a resin coating agent sprayed on the surface to form a rush grass sheet, the rush grass sheet is sandwiched between inner and outer pipe molds, the outer periphery of the rush grass sheet is surrounded and fixed, the rush grass sheet is solidified into a cylindrical shape, and then the pipe molds are removed to complete the lampshade.

2. 2. The method for making a lampshade from rush grass according to claim 1, characterized in that in the final step, lacquer spray is sprayed on the inside and outside surfaces of the cylindrical lampshade.

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