WO2002018235A1

WO2002018235A1 - Case

Info

Publication number: WO2002018235A1
Application number: PCT/KR2001/001445
Authority: WO
Inventors: Young Soo Lee
Original assignee: Deaah Printing Co Ltd
Current assignee: Deaah Printing Co Ltd
Priority date: 2000-08-29
Filing date: 2001-08-27
Publication date: 2002-03-07
Anticipated expiration: 2003-02-28
Also published as: AU2001282644A1; KR200217609Y1; CN1446168A

Abstract

Disclosed is a case for a rolled film in which its case body receiving the rolled film such as a wrapping film or foil, and its sawtooth cutter serving to cut a film piece having a desired length from the rolled film are integrally formed using a thermoplastic resin material, thereby being capable of simplifying the manufacturing process of the case, reducing the manufacturing costs, preventing an injury of the user by the sawtooth cutter, and allowing a process for recycling waste cases to be easily conducted.

Description

CASE

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a case for a rolled film, and more particularly to a case for a rolled film having a function for cutting the rolled film received in the case, such as a wrapping film or foil, into a film piece having a length suitable to be used, when the film is outwardly drawn from the case.

Description of the Related Art

Referring to Figs. 1 and 2, a conventional case for housing a rolled film is illustrated. As shown in Figs. 1 and 2, the case includes a case body 2 formed with an opening 10 for allowing a rolled film to be received in the interior of the case body 2 while allowing the rolled film to be taken out of the case body 2 as the outer end of the rolled film is outwardly drawn. The case also includes a sawtooth cutter 4 attached to an end of the case body 2 and adapted to cut the rolled film into a film piece having a length suitable to be used, when the film is outwardly drawn through the opening 10. Generally, the case body 2 is manufactured using a panel made of an easily formable paper material. The panel has a plurality of folding lines 2a so that it forms a rectangular parallelepiped structure having a long lateral length when it is bent along the folding lines 2a. In order to maintain the rectangular parallelepiped structure, the panel also has coupling members 2b at opposite lateral sections thereof, respectively.

The folding lines 2a horizontally define five sections of the case body 2, that is, a front section 21, a bottom section 22, a rear section 23, an upper section 24 covering the opening 10, and an overlapping section 25 covering the front section 21, while vertically defining opposite lateral sections of the case body 2 including lateral sections 26 respectively corresponding to lateral end portions of the rear section 23 each horizontally divided into three portions .

The coupling members 2b are arranged in pairs at the opposite lateral sections, respectively. The coupling members 2b arranged at each lateral section of the case body 2 are formed at upper and lower portions of the associated lateral section 26, respectively. Each coupling member 2b is formed by tearing the associated lateral section portion to form a semicircular slit . When the panel is bent along the folding lines 2a to form a rectangular parallelepiped structure, one coupling member 2b of each coupling member pair is engaged with a flap formed at the lateral section portion provided with the other coupling member 2b, whereas the other coupling member 2b is bent from the lateral section portion so that it engages with an associated one of opposite lateral ends of the rolled film, thereby preventing the rolled film from be separated from the case.

Diverse figures or characters representing, for example, the name of the product or its using method are printed on the outer surface of the case body 2. The printed outer surface of the case body 2 is coated with a thin plastic film.

The sawtooth cutter 4 is formed of a metal plate having a high strength, such as an steel plate, in order to easily cut the rolled film received in the case body 2. This sawtooth cutter 4 is attached to the upper end of the front section 21 of the case body 2.

However, the above mentioned conventional case has problems of a complex manufacturing process, and an increase in manufacturing costs in that the case body 2 is coated with a vinyl film, and that the sawtooth cutter 4 is attached to the case body 2 after being manufactured separately from the case body 2. Furthermore, it is difficult to conduct a recycling process for collected waste cases . SUMMARY OF THE INVENTION

Therefore, the present invention has been made in view of the above mentioned problems, and an object of the invention is to provide a case in which its case body and its sawtooth cutter are integrally formed using the same material, thereby being capable of simplifying the manufacturing process of the case, and reducing the manufacturing costs while allowing a process for recycling waste cases to be easily conducted.

In accordance with the present invention, this object is accomplished by providing a case including a case body adapted to receive a rolled film, and a sawtooth cutter formed at an end of the case body and adapted to cut the rolled film into a film piece having a desired length, wherein the sawtooth cutter is made of the same material as that of the case body while being integral with the case body.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the drawings, in which: Fig. 1 is a perspective view illustrating a conventional case;

Fig. 2 is a developed plan view illustrating the conventional case; Fig. 3 is a perspective view illustrating a case according to an embodiment of the present invention;

Fig. 4 is a developed plan view illustrating the case of Fig. 3 ;

Fig. 5 is a cross-sectional view taken along the line A - A of Fig. 4;

Fig. 6 is a perspective view showing the used condition of the case according to the present invention; and

Fig. 7 is a perspective view illustrating a case in accordance with another embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Now, embodiments of the present invention will be described in detail with reference to the annexed drawings . Fig. 3 is a perspective view illustrating a case according to an embodiment of the present invention.

As shown in Fig. 3, the case of the present invention includes a case body 50 having a rectangular parallelepiped structure having a long lateral length, and serving to receive a rolled film, and a sawtooth cutter 60 formed at an end of the case body 50 using the same material as that of the case body 50 in such a fashion that it is integral with the case body 50. The sawtooth cutter 60 serves to cut the rolled film into a film piece having a desired length, when the film is outwardly drawn from the case body 50.

Fig. 4 is a developed plan view illustrating the case shown in Fig. 3. The case body 50 is manufactured using a panel made of a synthetic resin material . The panel has a plurality of folding lines 50a so that it forms a rectangular parallelepiped structure having a long lateral length when it is bent along the folding lines 50a. In order to maintain the rectangular parallelepiped structure, the panel also has coupling members 50b at opposite lateral sections thereof, respectively. The sawtooth cutter 60 is formed at the upper end of the panel while being integral with the panel .

The folding lines 50a horizontally define five sections of the case body 50, that is, a front section 51, a bottom section 52, a rear section 53, an upper section 54, and an overlapping section 55, while vertically defining opposite lateral sections of the case body 50 including lateral sections 56 respectively corresponding to lateral end portions of the rear section 53, each horizontally divided into three portions . A pair of arc-shaped slits 51a are formed at opposite lateral end portions of the lower end of the front section 51, respectively. Respective lower corner portions 55a of the overlapping section 55 adapted to cover the front section 51 are engaged with the arc-shaped slits 51a, in order to prevent the overlapping section 55 from being separated from the front section 51.

The case body 50 is made of a recyclable thermoplastic resin material such as polyvinyl pyrrolidane (PVP) or polyvinyl chloride (PVC) so that it is re-formable after being heated. A plurality of obliquely extending anti-slip protrusions 70 are formed on the outer surface of the case body 50 so that the case body 50 has an embossed outer surface structure. Accordingly, when the user holds the case by the hand, it is possible to prevent the case from slipping from the hand of the user.

The sawtooth cutter 60 is formed at the upper end of the front section 51 of the case body 50 using the same thermoplastic resin material as that of the case body 50 so that it is integral with the case body 50. Accordingly, it is possible to more effectively prevent the cutter from cutting the finger or hand of the user, thereby injuring the user, as compared to the conventional metal cutter. In addition, it is unnecessary to separate the sawtooth cutter 60 from the case body 50 when the waste case is collected. Accordingly, the recycling process of the case is convenient.

Fig. 6 is a perspective view showing the used condition of the case according to the present invention. When it is desired to use a rolled film 80 received in the case body 50, the corner portions 55a of the overlapping section 55 are first separated from the arc-shaped slits 51a formed at the front section 51. Thereafter, the user draws the rolled film 80 by the hand grasping the outer end of the rolled film 80. When the rolled film 80 is drawn by a desired length as the rolled film 80 is rolled in accordance with the drawing operation, the user brings the downward end of the drawn film portion into contact with the sawtooth cutter 60, and then downwardly pulls the film portion, thereby cutting the film portion from the rolled film 80 at its downward end by the sawtooth cutter 60. The user then uses the cut film portion.

Fig. 7 is a perspective view illustrating a case in accordance with another embodiment of the present invention. In accordance with the embodiment illustrated in Fig. 7, a sawtooth cutter 60' is formed at the end of an overlapping section 55' adapted to cover a front section 51' so that it is integral with a case body 50' . In this case, the user can easily cut a rolled film 80 having a high ductility by drawing the rolled film 80, and upwardly pulling the drawn film portion while bringing the downward end of the drawn film portion into contact with the sawtooth cutter 60' .

As apparent from the above description, the present invention provides a case in which its case body receiving a rolled film such as a wrapping film or foil, and its sawtooth cutter serving to cut a film piece having a desired length from the rolled film are integrally formed using a thermoplastic resin material, thereby being capable of simplifying the manufacturing process of the case, reducing the manufacturing costs, preventing an injury of the user by the sawtooth cutter, and allowing a process for recycling waste cases to be easily conducted.

Although the preferred embodiments of the invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims .

Claims

WHAT IS CLAIMED IS:

1. A case including a case body adapted to receive a rolled film, and a sawtooth cutter formed at an end of the case body and adapted to cut the rolled film into a film piece having a desired length, wherein the sawtooth cutter is made of the same material as that of the case body while being integral with the case body.

2. The case according to claim 1, wherein the sawtooth cutter is formed at an upper end of a front section included in the case body.

3. The case according to claim 1, wherein the case is made of a thermoplastic resin material .

4. The case according to claim 1, wherein the case body is provided, at an outer surface thereof, with a plurality of anti-s1ip protrusions .

5. The case according to claim 1, wherein the sawtooth cutter is formed at an end of an overlapping section included in the case body and adapted to cover a front section of the case body.

6. The case according to claim 1, wherein the case body is provided with slits formed at a front section included in the case body, the slits being engagable with an end of an overlapping section included in the case body and adapted to cover the front section.

7. The case according to claim 6, wherein the slits are arranged at opposite lateral end portions of a lower end of the front section, respectively.