JP3000845U - Cover cover for office thin books etc. made of synthetic resin plate with continuous through holes - Google Patents

Abstract

(57) [Summary] [Purpose] A cover cover of a thin book that is made of a hollow extruded sheet and is easy to handle. [Structure] A double structure with a hollow extruded resin plate as the main material, an elastic sheet on the surface, and sewn edge covers on both edges, with cut grooves on the outside of both shoulder bends to allow it to bend freely. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a cover cover, which is generally called plastic corrugated cardboard in the industry, that requires a thick sheet such as an office thin book, which is mainly made of a hollow extrusion molded resin sheet plate having continuous through holes. .

[0002]

[Prior art]

 Almost all vinyl chloride resin products (PVC) are used as the main material for office work using sheet materials made of synthetic resin materials, thin books such as stationery, covers for covers such as notebooks, and covers for simple materials. For a cover cover such as a thin book that uses a single resin sheet material of, for example, binder 1 of FIG. As a material, vinyl chloride resin sheets 3 and 4 are laminated on both sides, or the front and back sides are covered with synthetic leather or fiber cloth and laminated in a sandwich form with a cardboard core in the middle to form a three-layer cover Covers are common. This is because the cardboard of the core material is advantageous in terms of cost. In the case of the double structure, the cardboard plate on the back side is easily damaged, and it is easy to prevent problems such as damage and deformation due to adsorption of water. The cover member has a heavy structure. At present, there is no proposal for a labor-saving cover structure that replaces the general triple-layer structure as the cover cover assembly member.

[0003]

[Problems to be solved by the present invention]

 As described above, a triple-layered binder mainly composed of a vinyl chloride resin sheet and a cardboard is generally used as a cover cover of a thin book such as office supplies and a notebook. On the other hand, the material used for industrial parts containers, boxes, and organized storage boxes is a lightweight synthetic resin plate produced by hollow extrusion molding, which is generally called plastic corrugated cardboard in the industry. These hollow extrusion-molded products have hardly been used as cover covers for thin books and binder materials for stationery. The reason is that a plate structure generally called a plastic corrugated board has a thick part as a structure of the main material plate 10 formed by hollow extrusion molding of a translucent or milky polypropylene resin material as shown in FIGS. Is an elastic resin plate having a constant plate thickness due to the upper and lower surfaces 13 and 14 of the thick portion in which individual independent hollow holes 12, 12, 12, ... Partitioned by thin partitions 11, 11, 11 ... It has a certain mechanical strength such as tension, bending, compression, etc. and has physical properties as a cover material. Since both sides are formed as thin blades in the case of 1), it may be scratched or scratched on the side of the cover in the case of a single-layer hollow plate, and it is practically used as a cover material for office work, stationery, etc. There was a difficulty.

Further, in the case of assembling by folding it into a U-shape as a cover, in the case of assembling as a conventional industrial storage box or as a box, a crease groove is provided on the inner side of the fold box to form a rectangular box, and as a box body, it is screwed. However, in the case of a cover cover, etc., the folded both edges of the cover are free ends that open and close, so there is a problem that even if the cover is folded and collapsed due to the strong repulsive force of the resin material, it opens with the reaction force. There is a difficulty that cannot be translated and can be freely opened and closed as a cover. Therefore, as a problem to solve the above-mentioned difficulties in utilizing these materials as a cover cover, accidents such as rubbing of fingers caused by the thin blade-shaped structure of both side edges 13a and 14a of the hollow molded resin plate shown in FIGS. It is necessary to prevent it, and to restore the open cover that is required as a binder. It should have a foldable structure that allows it to swing open and close with less resilience.

[0005]

[Means for Solving the Problems]

 As a means to solve the above-mentioned difficulties, a synthetic resin plate consisting of through-holes whose wall thickness is continuous by hollow extrusion molding is used as the main material, and the front surface of the resin plate is made of flexible material such as fiber cloth or synthetic leather. A cover body is formed by applying an elastic sheet material and bending it into a U-shape or a U-shape, and the synthetic resin sheet plate is a U-shape or U-shape bent portion. A cover cover for office thin sheets, etc., in which the cover body can be opened and closed freely, and the flexible elastic sheet materials that are laminated and laminated are covered with edging sheet pieces at both ends and seamed together. It is related.

[0006]

[Action]

 Since the present invention has a double structure and a groove is provided on the outside of the bent portion, it can swing freely and open and close. Since the surface is covered with an elastic cloth, it has a soft touch, and the peripheral edge of the cover is wrapped with leather or the like to prevent damage to fingers during handling in the office.

[0007]

【Example】

 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. The synthetic resin sheet plates shown in FIGS. 1 to 3 are hollow extruded molded plates made of polypropylene, which is the main material of the cover of the present invention, and are mostly made of semitransparent resin material. It is a plate material in which hollow through holes 12 partitioned by 11 are continuously provided on both sides 13 and 14. 4 to 5 have a double structure in which the plate material is used as a main material and a synthetic leather or elastic cloth body 15 is adhered to the surface. Reference numeral 16 designates a cover cover which can be rocked and opened freely when two or more recessed grooves 17 are provided on the outer sides of both shoulder portions bent at a U-shaped or U-shaped bent portion which is the back of the binder. The concave groove may be a half-cut groove, a ruled line or a hot pressing groove. Reference numeral 18 denotes a protective cover, which is edged with synthetic leather or the like and is wrapped around both side edges of the constructed cover body, and is sewn and reinforced with a thread material 19. FIG. 7 shows a binder 20 for a memo pad composed of a cover cover according to this embodiment. 21 is a memo paper, and 22 is a stopper.

[0008]

【effect】

 The present invention is a cover cover such as a binder with a double structure processed from a lightweight hollow material having a specific gravity of 0.1 to 0.3 as described above, and has excellent lightweight characteristics. Therefore, it is easy to handle, carry, arrange and store, and handle paperwork. It is very effective. Since paper corrugated cardboard is not used as the core material, even if spilled hot tea etc. penetrates inside when the skin is damaged, it does not lose its shape. Since it is sewn with elastic cloth etc. edging on the surface and corners, it is soft to the fingers and has strength and durability in terms of material, and it is semi-transparent and easy to dye, making it a highly practical color covering material. It is used as a thin book and stationery material.

[Brief description of drawings]

FIG. 1 is a front view of a synthetic resin plate which is the main material of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is an open plan view of a binder configuration.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is an enlarged partial bent view of FIG.

FIG. 7 is a perspective view assembled as a binder.

FIG. 8 is a side view of a conventional partially broken binder.

[Explanation of symbols]

 10 Hollow Molded Resin Plate 11 Partition 12 Hollow Hole 13 Thick Part Outer Surface 14 Thick Part Outer Surface 13a Edge of Main Material 14a Edge of Main Material 15 Elastic Fabric 16 Bent Part 17 Half Cut Groove 18 Protective Cover 19 Thread 20 Binder

Claims (1)

[Scope of utility model registration request] 1. A synthetic resin plate having a thick portion formed by continuous through holes formed by hollow extrusion molding as a main material, and a flexible elastic sheet material such as fiber cloth or synthetic leather is attached to the plate surface on the front side. And a U-shaped or U-shaped cover structure, and at least two concave grooves are provided on the outer sides of both shoulders of the U-shaped or U-shaped bent portion so that they can be opened and closed and can be rocked. An office thin book made of a synthetic resin plate having continuous through holes, characterized in that both edges of the attached flexible elastic sheet material are covered with edging sheet pieces and integrally sewn together. Cover cover for etc.