JP2021100800A - card case - Google Patents

Abstract

To provide a card case capable of being rounded, capable of being cut for use, and facilitating layout changes of a product.SOLUTION: A card case 1 comprises: a translucent rectangular first sheet 2 of hard vinyl chloride resin, the first sheet including a long-shaped surface first face 2a which forms the surface and a long-shaped second face 2b which forms the back surface; a rectangular second sheet 3 of soft vinyl chloride resin overlapped with the first sheet 2, the second sheet including a long-shaped first face 3a which forms the surface and a long-shaped second face 3b which forms the back surface; a bottom welding part 4 provided by adhering the second face 2b of the first sheet 2 and the first face 3a of the second sheet 3, arranged in the longitudinal direction, having a recessed part 4a, and having a melting bead layer 4b between the first sheet 2 and the second sheet 3; an adhesive layer 5 provided on the second face 3b of the second sheet 3b; and a rectangular peeling layer 6 adhered to the adhesive layer 5.SELECTED DRAWING: Figure 1

Description

The present invention relates to a card case in which a case surface is composed of a square and transparent hard resin sheet and a square soft resin sheet.

As shown in FIG. 7, hard resin sheets are adhered to each other, an adhesive layer is provided on the back surface, a card can be inserted from above, and a hard card case 400 and a soft resin sheet that can be adhered to an object 300 are adhered to each other and the back surface is adhered. A soft card case 500 is generally provided in which an adhesive layer is provided on the surface, a card can be inserted from above, and the card can be adhered to an object 300. As a special example, Patent Document 1 in which a soft resin sheet and a hard resin sheet are bonded is proposed. In the present invention, there is no adhesive layer, but when molding the card case, a heat-bonding step for reinforcing the open side of the soft resin film and each peripheral edge portion excluding each open side of the hard resin sheet and the soft resin film are used. It is provided for the purpose of enabling the process of heat bonding to be performed in one process. In the present invention, the square and transparent hard resin sheet 2 forming one case surface and the peripheral edges 6a and 6b of the soft resin film 4 forming the other case surface are heat-bonded except for the open sides 8a and 8b. The open side 8 of the soft resin film 4 is extended to form an extension piece 10, and the entire inner surface of the extension piece 10 is provided with a wall thickness substantially the same as that of the hard resin sheet 2. It is characterized in that it is formed by heat-bonding a reinforcing piece 12 made of a strip-shaped hard resin sheet.

Japanese Unexamined Patent Publication No. 61-177297

However, the above three types of conventional card cases have the following problems. (1) A soft card case with an adhesive layer can be rolled, but the sheet is worn out or loosened. On the other hand, a hard card case with an adhesive layer is durable but difficult to bend. (2) The conventional card case has a fixed vertical and horizontal size, is difficult to cut and use, and has low dimensional versatility. (3) In product management, distribution management, etc., steel shelves with angles are used, products are stored on the shelves of the steel shelves, and a card case is attached to the corresponding side surface of the shelves. A card with the type of product etc. is inserted. When the product layout of the shelves is changed, changing the position of the card case has a problem that it takes a lot of time and effort to peel off the card case and move it.

Therefore, the present inventor has found a special structure in order to solve the above problems, and has arrived at the present invention.

The present invention has a translucent first sheet of a rigid thermoplastic resin having a first surface forming a front surface and a second surface forming a back surface, which is elongated, and an elongated surface. A second sheet of soft thermoplastic resin having a first surface forming a front surface and a second surface forming a back surface and being overlapped with the first sheet, a second surface of the first sheet, and the second sheet. A bottom welded portion provided by welding the first surface of the sheet, which is arranged in the longitudinal direction, has a recess, and has a molten bead layer between the first sheet and the second sheet, and the second sheet. The first sheet is the second sheet due to the adhesive force of the molten bead layer and the elastic force of the first sheet. The card case is characterized in that the upper end surfaces, the left end surface and the right end surface of the first sheet and the second sheet serve as insertion openings for the card.

The "front side" means the front side when the card case is attached to the object, and the "back side" means the back side as well.

The "long shape" refers to a card case having dimensions other than the standard (A4, etc.) and having a horizontally long shape.

Examples of the thermoplastic resin include vinyl chloride resin, polyethylene resin, polypropylene resin and the like.

"Hard" and "soft" follow the distinction defined as a plastic card case in JIS S 6051: 1985.

"Translucent" also includes semipermeable.

The "molten bead layer" is a molten bead stretched by the pressure of a pad during welding molding. The "adhesive layer" is preferably one coated with an acrylic resin or the like, or a double-sided adhesive tape. The "peeling layer" may be a general one. The "elastic force" is to generate a return force so that when the first sheet is opened and the force is released during use, the first sheet is in the initial state of contact with the second sheet. ..

Both the first sheet and the second sheet are preferably made of a translucent resin, but the second sheet may be a non-translucent material. The first sheet and the second sheet have side surfaces in the thickness direction in addition to the first surface and the second surface.

The basic shape of the base material is rectangular, but the shape can be changed as appropriate according to the application.

High-frequency welding is preferable for welding of the card case, but ultrasonic waves, heat pressing, or the like may also be used. The size of the overall dimension can be appropriately set as long as it is long.

The ratio of the depth of the recess to the total thickness of the first sheet and the second sheet is 0.5 to 0.9.

The bottom welded portion is a welded layer by high frequency welding.

The first sheet has a vertical cut.

The present invention comprises a step of preparing a translucent first sheet of a hard thermoplastic resin, which is elongated and has a first surface forming a front surface and a second surface forming a back surface, and an elongated shape. A translucent second sheet of a soft thermoplastic resin having a first surface forming a front surface and a second surface forming a back surface and being overlapped with the first sheet, and a second sheet of the second sheet. A step of preparing a multi-layer sheet having an adhesive layer provided on the second surface and a release layer adhering to the adhesive layer, a second surface of the first sheet, and a first surface of the second sheet. The molten bead layer is provided by welding, and is provided with a step of forming a bottom welded portion which is arranged in the longitudinal direction, has a recess, and has a molten bead layer between the first sheet and the second sheet. The first sheet comes into contact with the second sheet due to the adhesive force of the first sheet and the elastic force of the first sheet, and the upper end surfaces, the left end surface and the right end surface of the first sheet and the second sheet serve as card insertion openings. This is a method for manufacturing a card case.

According to the card cases of the inventions of claims 1 and 5, (1) the card case can be rolled up, and can be wound up like a roll, so that it is easy to transport and store. It is possible to prevent the sheet from sagging or loosening. (2) It is not restricted by the vertical and horizontal sizes of the card case, it can be cut and used in any width, and it can be used for shelves with long spans, so it has high dimensional versatility. (3) Even if there is a change in the product layout, etc., even if there is a layout change, it is only necessary to shift the position of the card, and it is possible to respond quickly. It is possible to reduce the labor of removing the glue on the card case and removing the magnet in the case of a magnet to move it. (4) Due to the adhesive force of the molten bead layer and the elastic force of the first sheet, a clipping force is generated by bringing the first sheet into contact with the second sheet, preventing the card from falling off, making it easy to insert and remove. , Easy to use.

According to the card case of the invention of claim 2, the ratio of the depth of the recess to the total thickness of the first sheet and the second sheet other than the welded portion is 0.5 to 0.9. , Welding time can be shortened.

According to the card case of the invention of claim 3, since the bottom welded portion is a high-frequency welding layer, it is easy to manufacture and the quality is improved.

According to the card case of the invention of claim 4, since the first sheet has a cut in the vertical direction, it can be stored and transported in a folded state.

It is a front view (the inside of a circle is an enlarged view of an arrow) of the card case of Embodiment 1 of this invention. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is an exploded perspective view of FIG. (A) is a further enlarged view of the inside of the circle of FIG. 1, and (b) is a cross-sectional view taken along the line BB of (a). (A) is a high-frequency welding step of the card case of the first embodiment of the present invention, and (b) is a high-frequency welding step of the card case of the comparative example. It is a front view (the inside of a circle is an enlarged view of an arrow) of the card case of Embodiment 2 of this invention. It is a front view which shows the card case of the prior art.

The card case 1 of the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

As shown in FIGS. 1 to 3, the card case 1 is a rigid vinyl chloride resin having a first surface 2a forming a front surface and a second surface 2b forming a back surface. A soft vinyl chloride resin having a rectangular first sheet 2, a long first surface 3a forming a front surface, and a second surface 3b forming a back surface, which can be overlapped with the first sheet 2. It is arranged in the longitudinal direction, has a recess 4a, and is provided by welding a rectangular second sheet 3, a second surface 2b of the first sheet 2, and a first surface 3a of the second sheet 3. A bottom welded portion 4 having a molten bead layer 4b between the first sheet 2 and the second sheet 3, an adhesive layer 5 provided on the second surface 3b of the second sheet 3, and a rectangular peeling layer 6 adhering to the adhesive layer 5. And have. Due to the adhesive force of the molten bead layer 4b and the elastic force of the first sheet 2, the first sheet 2 is brought into contact with the second sheet 3, and the upper end surfaces, the left end surface and the right end surface of the first sheet 2 and the second sheet 3 are brought into contact with each other. It becomes the insertion opening 8 of the card 7. The first sheet 2 has a cut 9 in the vertical direction. Each element will be described below.

The dimensions of the card case 1 are exemplified, but not limited to, a thickness of 0.31 mm to 3.2 mm, a width of 900 to 1800 mm, and a height of 10 to 100 mm.

The first sheet 2 and the second sheet 3 are composed of four side surfaces, a front surface and a back surface.

The thickness of the first sheet 2 can be appropriately set in the range of 0.2 to 1 mm, and the thickness of the second sheet 3 can be appropriately set in the range of 0.1 to 2 mm.

In the first embodiment, the front surface side is a hard first sheet 2 and the back side is a soft second sheet 3, but when this is reversed, the soft resin sheet arranged on the front surface side may hang down. , There is a risk of sagging. Further, if both the front side and the back side are hard sheets, winding and cutting become difficult. Further, in the first embodiment, the adhesive layer 5 is attached to the soft second sheet 3. Glue on the back surface of the second sheet is easy to peel off and has been difficult in the past, but in the present embodiment, it is technically solved and can be carried out, which is convenient.

The bottom welded portion 4 is a high frequency welding layer. The ratio of the depth of the recess 4a to the total thickness of the first sheet and the second sheet other than the welded portion is 0.5 to 0.9, for example, 0.7. As will be described later, the molten bead layer 4b is a portion provided along the inner side when the molten bead generated on the inner side is crushed by the pad 101, and the molten bead generated along the outer side is the pad. Since it is not crushed by 101, the molten bead remains as it is and becomes the molten bead 4c.

The adhesive layer 5 may be a general one. For example, it is preferably a layer or double-sided tape to which an adhesive is glued. The glue may be a rubber-based adhesive or an acrylic-based adhesive.

The thickness of the release layer 6 is exemplified by 0.01 to 0.2 mm. The material of the release layer is preferably paper or plastic.

A method of using the card case 1 according to the embodiment of the present invention will be described. For storage and transportation, the card case 1 can be rolled in a rolled state or folded. When using the card case 1, the card case 1 is cut to an appropriate width, the release layer 6 is peeled off, and the card case 1 is attached to, for example, a side surface (not shown) of a shelf board of a steel shelf. When attaching the card 7 to the card case 1, insert it from the top surface or the left and right side surfaces. When it is difficult to insert the card 7 such as when it is thick, pinch the top of the first sheet 2 with your fingers to open it, insert the card 7, and release your finger. 7 can be sandwiched between the first sheet 2 and the second sheet 3. When removing the card 7, pick the upper part of the card 7 and pull it out. When moving the card 7, the card 7 can be slid laterally to change to a different position.

The manufacturing method of the card case 1 will be described.

(Step 1)
Prepare the first sheet 2 as described above.

(Step 2)
As described above, a multi-layer sheet having the second sheet 3, the adhesive layer 5 provided on the second surface 3b of the second sheet 3, and the peeling layer 6 adhering to the adhesive layer 5 is prepared. The adhesive layer 5 is an acrylic resin, double-sided tape, or the like. A rubber-based adhesive may be used, but an adhesive that does not leave adhesive residue is preferable. The dimensions of the card case for the shelf are the dimensions corresponding to the shelf, and examples thereof include a length of 900 to 1800 mm and a height of 10 to 100 mm. When the height of the second sheet is higher than that of the first sheet, the card 7 can be easily taken out.

(Step 3)
It is provided by welding the second surface 2b of the first sheet 2 and the first surface 3a of the second sheet 3, is arranged in the longitudinal direction, has a recess 4a, and has the first sheet 2 and the second sheet 3. A bottom welded portion 4 having a molten bead layer 4b is formed between the two.

As shown in FIG. 5A, they are overlapped and set in a high-frequency welding device (not shown), and the mold 100 and the pad 101 are placed adjacent to each other on the bottom of the first sheet 2 in a fixed state. Place. A convex portion (not shown) for forming the concave portion 4a is intermittently provided on the bottom surface of the mold 100. For the pad 101, for example, a plastic material having a thickness of 5 mm, for example, plastic corrugated cardboard or the like is used. When the mold 100 is heated, the second sheet 3 is first melted, and then the first sheet 2 is melted and welded.

The reason why the pad 101 (corrugated plastic) is used is that the die 100 and the pad 101 are lowered at the same time to crush the molten bead that protrudes around the mold 100 in a paws state at the time of welding. The molten bead in the range of the pad 101 is crushed to give a habit to the first sheet 2 and then hardened to form a molten bead layer 4b. As a result, as shown in the comparative example of FIG. 5B, the first sheet 102 is hard, so that the jumping up is suppressed, and the first sheet 2 adheres to the molten bead layer 4b with a habit attached. Will be done. Due to the adhesive force of the bead layer 4b and the elastic force of the first sheet 2, the first sheet 2 is brought into contact with the second sheet 3. The molten bead layer 4b is formed at a portion where the pad 101 hits, and the portion where the pad 101 does not hit is not crushed, so that the molten bead 4c is formed.

The reason why the concave portion 4a is provided by the convex portion is that the press pressure of the mold 100 is increased to promote forced welding and shorten the welding time. Assuming that the thickness of the raw material is 1, the compressibility of the thickness is 0.7. This compressibility is the ratio of the depth of the recess 4a to the total thickness of the first sheet 2 and the second sheet 3 other than the welded portion.

The second sheet 3 melts first, then the first sheet 2. The amount of melting in the second sheet 3 is larger than that in the first sheet 2.

In this way, the adhesive force of the molten bead layer 4b and the elastic force of the first sheet 2 exert a force to bring the first sheet 2 into contact with the second sheet 3, and this becomes a clipping force for sandwiching the card. The upper end surface, the left end surface, and the right end surface of the first sheet 2 and the second sheet 3 serve as the card insertion opening 8.

As described above, the card case 1 of the present embodiment has the following effects.

The card case 1 can be rolled up. For example, it can be wound up like a roll, so that it is easy to transport and store.

Since the first sheet 2 is hard, it is possible to prevent the sheet from sagging or loosening.

The card case 1 can be cut to an arbitrary width and used without being restricted by the vertical and horizontal sizes of the card case, and the dimensions are highly versatile, such as being able to handle long-span shelves.

Even if there is a change in the product layout or the like, the layout change work can be performed quickly by simply shifting the position of the card 7 or pulling it out and inserting it into another place.

The adhesive force of the molten bead layer 4b and the elastic force of the first sheet 2 generate a clipping force, which can prevent the card 7 from falling off, is easy to insert and remove, and is easy to use.

The welding time can be shortened by the recess 4a.

Since the bottom welded portion 4 is a high-frequency welding layer, it is easy to manufacture and the quality is improved.

Since the first sheet 2 has a cut 9 in the vertical direction, it can be stored and transported in a folded state.

In recent years, automated warehouses have been developed, but it is easy to deal with them. It is possible to promote support for technologies such as QR codes (registered trademarks) and IC tags.

As shown in FIG. 6, the card case 201 of the second embodiment of the present invention is basically the same as the first embodiment, so the number is in the 200s and the description is incorporated. The difference is that the bottom welded portion 204 is discontinuous in the first embodiment, but is continuous. The adhesive strength of the bottom welded portion 204 is higher than that of the first embodiment, but the first embodiment is superior in design and the position of the bottom welded portion 4 can be confirmed at a glance.

By applying the present invention to so-called product management, product distribution, etc., it is possible to contribute to the improvement of product management efficiency.

1,201 ... Card case 2 ... 1st sheet 2a ... 1st surface 2b ... 2nd surface 3 ... 2nd sheet 3a ... 1st surface 3b ... 2nd surface 4 ... Bottom welding part 4a ... Recessed portion 4b ... Molten bead layer 4c ... Molten bead 5 ... Adhesive layer 6 ... Peeling layer 7 ... Card 8 ... Insertion opening 9 ...・ ・ Break

Claims (5)

A translucent first sheet of hard thermoplastic resin, which is elongated and has a first surface forming a front surface and a second surface forming a back surface.
A second sheet of soft thermoplastic resin, which is long and has a first surface forming a front surface and a second surface forming a back surface, and is overlapped with the first sheet.
It is provided by welding the second surface of the first sheet and the first surface of the second sheet, is arranged in the longitudinal direction, has a recess, and melts between the first sheet and the second sheet. A bottom weld with a bead layer and
An adhesive layer provided on the second surface of the second sheet and
It has a peeling layer that adheres to the adhesive layer, and has
Due to the adhesive force of the molten bead layer and the elastic force of the first sheet, the first sheet comes into contact with the second sheet.
A card case characterized in that the upper end surfaces, the left end surface and the right end surface of the first sheet and the second sheet serve as card insertion openings. The card case according to claim 1, wherein the ratio of the depth of the recess to the total thickness of the first sheet and the second sheet other than the welded portion is 0.5 to 0.9. The card case according to claim 1 or 2, wherein the bottom welded portion is a welded layer by high frequency welding. The card case according to any one of claims 1 to 3, wherein the first sheet has a vertical cut. A step of preparing a translucent first sheet of a hard thermoplastic resin, which is long and has a first surface forming a front surface and a second surface forming a back surface.
A translucent second sheet of a soft thermoplastic resin, which is long and has a first surface forming a front surface and a second surface forming a back surface and is overlapped with the first sheet, and the first sheet. A step of preparing a multi-layer sheet having an adhesive layer provided on the second surface of the two sheets and a release layer to be adhered to the adhesive layer.
It is provided by welding the second surface of the first sheet and the first surface of the second sheet, is arranged in the longitudinal direction, has a recess, and melts between the first sheet and the second sheet. It comprises a step of forming a bottom weld with a bead layer.
Due to the adhesive force of the molten bead layer and the elastic force of the first sheet, the first sheet comes into contact with the second sheet.
A method for manufacturing a card case, wherein the upper end surfaces, the left end surface, and the right end surface of the first sheet and the second sheet serve as card insertion openings.

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