JP2013043697A - Wrap film case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems such as: the fact that there is a danger of cutting a fingertip with an exposed cutting blade; the fact necessitating opening/closing the lid for each use; the fact that it is difficult to pick and draw a wrap film tip; the fact that peeling work of a wrap film stuck to a roll is very complex; the fact that it is not possible to make use as a stationary type; and the fact that a disposable paper case is a waste of timber resources.SOLUTION: A cutting device is configured such that a cutting blade thereof is a housed type, eliminating danger to assure safety. A composite notch part is formed to enable direct picking and drawing of the wrap film as it is, and one-touch cutting is carried out without any need to open/close a case lid body. Complex peeling work is prevented by a sticking prevention tool. A system usable as both a handcarrying type and a stationary type is very convenient. Separation and sorting are unnecessary because of a content replenishment type, paper cases are unnecessary, resources are saved, and thereby contributing to environment protection.

Description

The present invention relates to a wrap film case in which a necessary amount of a wrap film is drawn from a roll in which the wrap film is wound around a core, and is used after being cut.

In the conventional disposable wrap film case shown in FIG. 10, a roll 54 wound around a winding core is housed in a paper case body 51. When using, the case lid 52 is opened about half, and the tip of the wrap film 55 is made visible, and then the wrap film 55 is picked and pulled out by a necessary length, and a cutting blade provided at the edge of the case lid 52 53 is pressed against the wrap film 55 while closing the case lid 52 and cut.

In the conventional wrap film case shown in FIG. 10, since the saw blade-like cutting blade 53 is always exposed, there is a risk of damaging the fingertip with the cutting blade 53 during the cutting operation of the wrap film 55 at all times.

As shown in FIG. 10, the tip of the wrap film 55 is covered with the case lid 52 and cannot be visually observed.

As shown in FIG. 11, in order to visually check the front end of the wrap film 55, it is necessary to open the case lid 52 about half. As a next operation, the wrap film 55 that can be visually observed is picked, but the wrap film is a thin film of micron unit, and is attached to the case main body 51 due to static electricity or affinity, and the tip of the wrap film 55 is picked. It is not free.

As shown in FIGS. 10 and 11, there is a wrap film case with a picking assisting process 56 that makes it easy to pick the tip of the wrap film 55, as shown in FIGS. Because it is an orthosis, it is not satisfactory enough.

In another type of wrap film case shown in FIG. 12, the cut end of the wrap film 55 can be visually observed, making it easy to pick, and the picking work has been improved. However, since the sawtooth-shaped cutting blade 61 is exposed at the corner of the case body 51 that is most likely to be injured, the danger increases.

In a conventional wrap film case, the end of the wrap film 55 may stick to the roll 54 and the operation may not be continued. When the tip of the wrap film 55 sticks to the roll 54, the tip is peeled off using the tip of a nail or a cello tape, but this returning operation is very complicated.

There are two causes of the preceding paragraph. One of them is a case where the wrap film 55 is pulled up and sticks to the roll 54 when the case lid 52 is opened.

Cause 2 is a case where the roll 54 is idled in the case main body 51 to cause rewinding and the wrap film 55 is stuck to the roll 54.

As shown in FIGS. 10 and 11, a solution for cause 1 is a method in which an adhesive material application portion 57 is provided on the case body 51 and a wrap film 55 is temporarily attached. Although it seems to be solved at first glance, since it is a method of sticking the wrap film 55 with an adhesive, it is necessary to roll up the wrap film 55 from the case body 51 first in the operation of pulling out the wrap film 55, so that it is easy to use. I can't say that.

The solution for the cause 2 is a method of forming a winding core pressing process 58 that prevents the roll 54 from unwinding and the roll 54 from jumping out, as shown in FIGS. 10 and 12. However, since the remaining amount of the roll 54 is reduced because the cardboard is simply pushed and bent, and the roll diameter is reduced, the prevention function is not sufficient.

In conventional disposable wrap film cases, paper, metal, and plastics are disassembled and disposed of after the wrap film has been used up. Risk of injury.

Conventional wrap film cases are a waste of important forest resources because paper cases are disposable for each roll.

There is a refillable hard case described in the literature, Japanese Patent Application Laid-Open No. 2005-88991. When the case lid is closed, the cutting blade is housed inside the lid so that there is no risk of injury and it is safe. However, when the case lid is opened, the cutting edge of the cutting blade with good sharpness is exposed and the fingertip is injured. The risk of injury is not prevented and safety cannot be said to have improved.

Since the hard case is a method of fixing the wrap film to the roll at the tip of the wrap film by rewinding the wrap film, an adhesive material is applied to the case body and the wrap film is temporarily attached. The case cover must be opened and the wrap film peeled off from the adhesive application part before the wrap film is pulled out, and the case cover must be closed again for cutting. Is not improved.

Generally speaking, the conventional disposable wrap film case has a risk of always injuring the fingertip with the exposed cutting blade, and it is an operation that takes care of the fingertip and is not reliable. The cutting operation is complicated by opening and closing the case lid each time. When strong force is applied, there is no stability. Lap film sticking to rolls, separation and disassembly work after use up, wasteful use of resources. The background of conventional wrap film cases is that it cannot be said that old and young men and women can use it with peace of mind.
JP 2006-36311 JP 2005-88991 JP 2001-163328 JP 3258482

The following issues exist for solving these problems.

The task of removing the danger and fear of damaging your fingertips with the exposed cutting edge.

The problem is that the tip of the wrap film is always visible and can be pulled out freely.

The task of removing the trouble of opening and closing the case lid every time the wrap film is cut.

A problem that prevents the tip of a wrap film from rising, sticking to a roll, and becoming unable to pick when the case lid is opened.

The problem of preventing the roll from rotating idly by moving the case and the recoil at the end of cutting, the wrap film tip being rewound, sticking to the roll, and not being picked.

The task of eliminating the work of separating and disassembling into papers, metals, plastics, etc. after the wrap film has been used up, and eliminating injuries caused by the cutting blade during the disassembly work

The problem of making this a system that can be used not only as a handheld type but also as a fixed type.

The problem is that it can be used for a long time in a hard case, and a short roll can also be used.

It is a disposable case for paper cases when waste of resources is eliminated. The challenge of eliminating wasteful use of forest resources.

The present invention has been devised to solve the above-mentioned problems, and an outline thereof will be described below.

The cutting device of the system which isolate | separates and became independent of the cutting blade currently fixed to the cover body edge part, and retracts | sucks a cutting blade to the cutting blade storage part of a case cover body automatically is comprised.

Form a notch where the fingertip enters the edge of the case lid wrap film drawer side, and form a notch where the fingertip also enters the opposite corner of the case body when the case lid is closed. The wrap film can be seen without opening, and a composite notch is formed so that it can be picked as it is.

By the cutting device and the composite cutout described in the preceding paragraph, a wrap film case capable of one-touch cutting without the need to open and close the lid from the wrap film cutting operation is obtained.

It is a lid shape that covers the stored roll, and is connected by a hinge at the edge of the case body to constitute a sticking prevention tool that can be freely opened and closed. The width of the sticking prevention tool may be only the central portion of the wrap film 8 or may be the full width. The method for closing the sticking prevention tool is a magnetic attractive force, and a magnetic body is provided at the body edge opposite to the sticking prevention tool edge.

In order to prevent backlash of the roll stored in the case body and idle rotation of the roll, a rotation control tool that presses the roll is configured, and an elastic part is provided in the roll presser that presses the roll, and is fixed to the lid, and the lid When the body is closed, the roll is pressed with a constant pressure.

A hard case that is refillable, can be used for short rolls, and can be used for a long time.

Fixed wrap film case used as a fixed type, with a dedicated saucer, rugged shape on the side of the wrap film case, rugged shape on both sides of the cradle, easy to place, and not falling off Configure.

With the above configuration, the present invention produces the following effects.

Since the cutting blade is automatically stored in the cutting blade storage portion of the case lid by the cutting device, there is no risk of injury to the fingertip by the cutting blade, and safety is improved.

With the structure of the combined cut-out part, the wrap film tip can always be visually observed and can be picked and pulled out as it is, so that convenience is improved.

With the cutting method by the cutting device and the combined cut-out configuration, the wrap film can be cut with a single touch, eliminating the need to open and close the case lid, improving convenience.

The sticking prevention tool is configured to prevent sticking to the roll due to the wrap film rising when the case lid is opened, thereby eliminating complicated restoration work.

It constitutes a rotation control tool, so that there is no rewinding due to rotation from the roll, the wrap film tip is prevented from sticking to the roll, and a complicated return operation is eliminated.

Since the rotation control tool is configured and the wrap film can be pulled out smoothly without being influenced by the remaining amount of the wrap film roll, the stability of the work is improved.

The system of the fixed tray and wrap film case can be used for both hand-held and fixed types, improving convenience.

Constructs a divider, can use short rolls, and becomes a hard case to improve work reliability.

Since it is a refillable type, it is no longer necessary to disassemble and separate paper, metal, plastic, etc. In addition, there is no risk of injury during the cutting blade disassembly work, and safety is improved.

The refillable type eliminates the need for disposable paper cases and saves forest resources.

The present invention, the case lid is opened, the roll storage state, a perspective view, The present invention, used as a handheld, perspective view, The present invention, a front view in which a cutting blade is stored in a cutting device Front view of the present invention, cutting blade edge is pushed out from the cutting device Cross section of the present invention, wrap film stop tool (cutting blade pressing tool) pressed down Cross section of the present invention, the rotation control tool presses the roll The present invention, a side view of placing a wrap film case on a stationary tray Perspective view of the present invention, wrap film case, used as a fixed type The present invention, the shape of the cutting edge, front view Perspective view of the conventional product case, explanatory diagram where the tip of the wrap film is not visible Perspective view of conventional product case, explanatory diagram of opening and closing of case lid Perspective view of conventional product case, explanatory drawing of external cutting blade

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

FIG. 1 shows a state in which the case lid 4 is opened and a film roll is accommodated. The case body 1 is a box-shaped upper opening type that is sized so that the roll 9 can be disposed, and is formed of a material that can be used for a long time. The case lid 4 is connected by hinges 6 and 6B at the edge of the main body and can be freely opened and closed.

FIG. 2 shows a state in which the case lid 4 is closed, and a cutting device 13 in which the cutting blade 11 is accommodated is configured in the cutting blade accommodating portion 5 on the wrap film outlet side of the case lid 4. A lid closing tool 10 is provided at the film exit side corner of the case body 1 to automatically close the opening and closing of the case lid 4 to prevent the film roll from popping out. By pressing the lid closing tool 10, the closure can be released and the case lid 4 can be opened.

The cutting blade closing tool 16 will be described with reference to FIG. Storing the cutting blade 11 is a first safety device, and the cutting blade closing tool 16 is a second safety device. Even when the cutting blade pressing tool 5 is pushed unnecessarily when the film roll 9 is replaced, or even if an infant or the like accidentally touches it, the cutting blade edge 33 is prevented from being pushed out to enhance the safety.

The previous section, the cutting blade closing tool 16 is rotatably provided on the lid 2 at a position in contact with the cutting blade pressing tool 5, and a part of the cutting blade closing tool 16 is inserted into the pressing tool recess 17 provided in the cutting blade pressing tool 5. The movement of the cutting blade pusher 5 is closed and released.

The cutting device 13 will be described with reference to FIGS.

The cutting device 13 is a device that can cut the drawn wrap film 8 one-touch without opening and closing the case lid 4 and that includes a cutting blade 11 to improve safety.

FIG. 3 shows a state in which the cutting blade 11 is stored in the cutting blade storage portion 5, and FIG. 4 shows that the cutting blade pressing tool 5 is pushed, the cutting blade edge 33 is pushed out from the cutting blade storage portion 5, and the wrap film is cut. It shows a possible state.

A cutting blade 11 that covers the width of the wrap film 8 is formed in the cutting device 13, and a cutting blade pressing tool 12 that pushes the cutting blade 11 is formed at the center of the back of the cutting blade 11. Is exposed to the outside of the case lid 4 through a hole formed in the upper central portion of the case lid 4.

In the previous section, the cutting blade pressing tool 12 is provided with elastic body support portions 15 and 15B, and is supported by receiving tools 14 and 14B provided in the cutting device 13, and the cutting blade 11 freely slides up and down inside the cutting device 13. To do. When the cutting blade pusher 12 is pushed and the cutting blade 11 is pushed out and cut, and then the pushed force is released, the elastic body supporting portions 15 and 15B are pulled back by the elastic restoring force, and the cutting blade 11 is automatically moved into the cutting device 13. It is stored in.

The cutting blade pressing tool 12 is pushed and the cutting blade edge 33 is exposed to the outside only at the moment of cutting the wrap film 8 and is automatically stored in the cutting device 13 at all times except during cutting.

The shape of the cutting blade edge line 33 will be described with reference to FIGS.

The shape of the cutting blade edge 33 is provided with two vertices at the center in the cutting blade width direction, a valley 35 is formed between the vertices 34 and 34B, and each case from the vertex to the end in the cutting blade width direction is a case. The shape is warmly inclined with respect to the bottom of the main body. For example, the entire length of the cutting edge line is a gentle W-shape.

If the cutting blade edge 33 is formed into a W-shaped two-vertex cutting blade, center priority cutting can be performed more speedily and smoothly than cutting one vertex.

The shape of the cutting blade edge 33 is a gentle valley shape that matches the shape of the lid cutout 7. The distance between the vertices is almost the same as the width of the notch.

The film stopper 18 will be described with reference to FIG.

The film stopper 18 has a function of forcibly stopping the pulling out of the wrap film only when the film is cut, so that the film is reliably cut. If the wrap film is pulled out freely without resistance at the time of cutting, the wrap film 8 is pulled out while being caught on the cutting blade edge 33, and the cutting operation of the wrap film is interrupted by cleaving or breaking. This will prevent this.

The film stopper 18 is provided on the wrap film side of the cutting blade pusher 12. FIG. 5 shows a state in which the cutting blade pressing tool 12, that is, the film stopper 18 is pushed down, the projection 19 of the film stopper 18 is in contact with the main body edge 2, the wrap film 8 is clamped and the drawing is stopped. Show.

In a state where the film stopper 18, that is, the cutting blade pressing tool 12 is not pushed down, the space between the projection 19 of the film stopper 18 and the main body edge 2 is a free space and the wrap film can be pulled out without being pressed.

The sticking prevention tool 20 will be described with reference to FIG.

The sticking prevention tool 20 has a function of preventing the wrap film from flying up and sticking to the roll 9 when the lid 4 is opened. It is very complicated to peel off the wrap film adhered to the roll 9.

The sticking prevention tool 20 has a lid shape covering a roll and can be freely opened and closed by being connected by hinges 21 and 21B of the case body edge 2. The width of the sticking prevention tool 20 may be only the central part of the wrap film 8 or may be the full width.

A magnetic body 22 is provided at an edge portion of the sticking prevention device 20 that contacts the film 8 on the film exit side, and a magnetic body 23 is also provided at the body edge portion 2 at a position opposite to the magnetic body 22, thereby attracting magnetic force. Thus, the sticking prevention tool 20 is closed.

The magnetic force of the magnetic body 22 of the sticking prevention device 20 and the magnetic body 23 of the case main body 1 is normally stopped by sandwiching and pressing the film 8 by the magnetic attractive force, and the film 8 can pass freely when the film is pulled out. Magnetic force.

The sticking prevention tool 20 is basically opened and closed manually, but when closing, the case lid 2 is automatically closed in conjunction with the case lid 2.

Conventional wrap film cases employ a method of temporarily attaching a wrap film to an adhesive applied to the outside of the case in order to prevent the film from unwinding and rising. Although the effect is sufficient, the effectiveness of the adhesive material is short, and it is not suitable for a refillable wrap film case for long-term use.

As described in the previous section, since the wrap film is pasted with the adhesive material, in order to pull out the wrap film, it is necessary to open the case lid and then peel off the wrap film 8. In the cutting operation with the film case of the present invention, since the case lid does not open and close, the wrap film cannot be rolled up and peeled off from the adhesive material. Therefore, in the present invention, the sticking prevention tool 20 by the magnetic attractive force that can be used permanently without the need for rolling up and without deterioration of the effect is configured.

The rotation control tool 24 will be described with reference to FIGS.

The rotation control device 24 prevents unnecessary movement of the roll in the case body 1 and idling, thereby preventing rewinding and preventing the wrapping film tip from sticking to the roll 9. This is a function that makes the drawers constant and smooth.

As shown in FIG. 1, the rotation control tool 24 includes an elastic body 25 and a roll pressing portion 26, and is provided on the lid connecting hinge side inside the lid 4.

As shown in FIG. 6, the rotation control tool 24 is a mechanism that presses the roll by closing the case lid 4.
The roll pressing portion 26 changes its angle freely in the diameter direction in accordance with the change in the diameter of the film roll by the elastic force of the elastic member 25.

The roll pressing portion 26 of the rotation control tool 24 controls the rotation corresponding to the change in the remaining diameter of the roll 9 by the contact pressure to the roll 9 due to the elastic force of the elastic body 25.

The main body cutout 3 and the lid cutout 7 will be described with reference to FIGS.

In the combined cutout portion of the main body cutout portion 3 and the lid cutout portion 7, it remains so that the tip of the previously cut wrap film can be seen, so that it can be seen and picked as it is without opening the case lid 4. This is a function that can be pulled out.

As shown in FIGS. 1 and 2, the main body notch portion 3 is formed as a concave notch into which a finger enters at the center of the bottom corner portion of the case body 1 on the wrap film exit side. The lid cutout portion 7 is formed as a concave cutout into which a finger enters at the edge of the central portion of the case lid 4 on the wrap film outlet side. The two notches are opposite compound notches.

The cutting blade 11 cuts off the combined cutout portion of the main body cutout portion 3 and the lid cutout portion 7 only at the moment of cutting the wrap film.

The partitions 28 and 28B will be described with reference to FIGS.

The dividers 28 and 28B have a function for using a roll having a short size.

As shown in FIG. 1, the dividers 28 and 28B are provided with fulcrums 27 and 27B on the inner side of the case body 1 on the bottom face of the film outlet at a position corresponding to the short roll, and the fulcrum is connected as a hinge and is about 90 degrees in the roll diameter direction. Can rotate.

As shown in FIG. 1, the dividers 28 and 28 </ b> B are accommodated in the length direction of the case body 1 when a normal roll is disposed and used.

As shown in FIG. 6, the dividers 28 and 28 </ b> B are used by changing the direction when a short roll is arranged. The dividers 28 and 28B are rotated by 90 degrees, that is, rotated by 90 degrees in the roll diameter direction, and a short size roll is disposed between a pair of dividers.

The fixed tray 30 will be described with reference to FIGS.

The wrap film case of the present invention is a system that can be used as a fixed type by fixing the fixed type receiving tray 30 to a wall surface, a board or the like.

The stationary tray 30 is an upper opening type in which the case main body 1 can be arranged, and tray concave and convex portions 31 and 31B are provided on both side ends of the stationary tray 30.

Case body uneven portions 29 and 29B are formed on both side surfaces of the case body 1. When the wrap film case is used as a fixed type, it is a portion to be inserted into the tray uneven portions 31 and 31B.

When a wrap film case is placed on the stationary tray 30. As shown in FIG. 8, the wrap film case is slightly tilted forward and placed in the stationary tray 30, and the case main body uneven portions 29 and 29 </ b> B are fitted to the tray uneven portions 31 and 31 </ b> B.

When removing the wrap film case from the fixed tray 30, it can be removed by removing the case main body uneven portions 29 and 29B from the tray recesses 31 and 31B while tilting the wrap film case slightly forward.

The case main body uneven portions 29 and 29B are inserted into and matched with the tray recesses 31 and 31B of the fixed tray 30 to prevent the wrap film case from falling off the fixed tray 30. The concavo-convex portion and the concavo-convex portion are fitted to each other, and the wrap film case is a system in which the wrap film case does not fall off from the fixed tray 30 due to the principle of frictional force and leverage.

In the case of a simple upward-opening type tray in which the tray uneven portion and the case main body uneven portion are not different from the previous section, or when there is no fixing means, the drawn wrap film is shown in FIG. The wrap film case can be easily ejected from the tray and dropped off simply by pulling it upward in the direction of arrow (3).

The method of using the wrap film case of the present invention as a hand-held type will be described with reference to FIGS.
(1) The film 8 visible at the notch 7 is picked and pulled out as it is.
{Circle around (2)} The cutting blade pressing tool 12 is pushed with a fingertip, and the cutting blade 11 is pushed out and held.
(3) When the wrap film 8 is lifted upward by 90 degrees, it is instantly cut and completed.

FIG. 2 shows a state where the previous cutting has been completed, and the tip of the wrap film 8 is visible in the space where the upper and lower surfaces of the film are open at the main body notch portion 3 and the lid notch portion 7. It shows the state of picking exactly as it is.

FIG. 3 shows a state where a wrap film is picked as it is and a necessary amount is pulled out.

FIG. 4 shows a state where the cutting blade 11 is pushed by pushing the cutting blade pusher 12. If the drawn wrap film 8 is slightly pulled and tilted to the cutting blade 11 side by about 90 degrees or the wrap film case is rotated by about 90 degrees, the wrap film is cut instantaneously.

When the cutting is finished and the finger is released from the cutting blade pusher 12, the cutting blade 11 is automatically stored in the cutting blade storage portion 5, and the operation is completed.

2 again, the wrap film 8 is characterized in that the tip of the wrap film 8 is visible in the space between the main body notch 3 and the cover notch 7 and can be pinched exactly as it is. The second and third cutting operations can be performed quickly.

In the cutting operation, the opening / closing operation of the case lid 4 is completely unnecessary until the wrap film 8 is picked, pulled out and cut. The case lid 4 is opened and closed only when the roll 9 is set on the case body 1 and when the remaining amount of the roll 9 is checked.

A method of using the wrap film case of the present invention as a fixed type will be described with reference to FIG.
(1) Set on the stationary tray 30 and pull out the film 8 that can be seen in the cutout 7 as it is.
(2) The cutting blade pressing tool 12 is pushed with the other fingertip, and the cutting blade 11 is pushed out and held.
(3) When the wrap film 8 is lifted upward by about 90 degrees, it is instantaneously cut.

Whether the wrap film case of the present invention is used as a fixed type or a hand-held type, the wrap film can be picked and pulled out as it is and can be cut with one touch without opening and closing the case lid. Convenience is the same.

Even if the wrap film case of the present invention is used as a fixed type, the wrap film 8 can be visually observed again at the combined cut-out portion at the end of cutting, so that the second cutting operation can be performed immediately.

When the wrap film case of the present invention is used as a fixed type, it is very convenient because, for example, even if both hands are covered with ingredients in cooking such as hand kneading hamburger, one-touch cutting can be done without touching the wrap film case. is there.

In addition, the wrap film case by this invention is not restricted to the example mentioned above, A various change can be performed in this invention structure.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Main body edge part 3 Main body notch part 4 Case cover body 5 Cutting blade accommodating part 6 Hinge (6B)
7 Lid cutout 8 Lap film 9 Roll 10 Lid closing tool 11 Cutting blade 12 Cutting blade pushing tool 13 Cutting device 14 Support tool (14B)
15 Elastic body support (15B)
16 Cutting Blade Closing Tool 17 Pressing Tool Recess 18 Film Stopping Tool 19 Protrusion 20 Sticking Prevention Tool 21 Hinge (21B)
22 Magnetic body 23 Magnetic body 24 Rotation control tool (24B)
25 Elastic part (25B)
26 Roll presser part (26B)
27 fulcrum (27B)
28 dividers (28B)
29 Case body convex part (29B)
30 Fixed type tray 31 Countersink recess (31B)
32 Mounting board 33 Cutting blade edge 34 Apex (34B)
35 Valley 36 Angle 37 Width 38-50 Abbreviation 51 Case body 52 Case lid 53 Cutting blade 54 Roll 55 Wrap film 56 Picking aid 57 Adhesive material application part 58 Core holder 59 Case body 60 Case lid 61 Cutting blade

Claims (8)

In a wrap film case provided with a case main body having an opening for storing a roll of wrap film wound around a winding core and a case lid for covering the case main body opening in an openable and closable manner, on the lap film drawer side of the case lid The cutting device is configured to cut the drawn wrap film, the cutting device is provided with a cutting blade having a width capable of cutting the wrap film, the cutting blade pressing tool is provided at the center of the cutting blade, and the upper portion of the cutting blade pressing tool is a case. It protrudes to the outside from the hole formed in the upper part of the lid, and the cutting blade pusher is provided with an elastic support, supported by the support provided on the cutting device, and the cutting blade is pressed by the downward pressure on the cutting blade pusher. A wrap film case comprising a cutting device for extruding the blade edge to the outside of the case lid edge and storing the cutting blade blade edge in the case lid body by releasing the pressure. The shape of the cutting edge of the cutting blade according to claim 1, wherein the edge of the cutting blade is provided with vertices at two positions in the central portion of the cutting blade width direction with respect to the bottom of the case body, and a valley is formed between the vertices. 2. A wrap film case according to claim 1, wherein a cutting blade is formed which is warmly inclined with respect to the bottom end of the case body and whose cutting edge line is formed in a W shape. A wrap film stop is provided on the wrap film side of the cutting blade pusher according to claim 1, a protrusion is provided below the wrap film stop, and the protrusion is the main body due to the downward pressing force to the cutting blade pusher. The wrap film case according to any one of claims 1 to 2, wherein a wrap film stopper for pressing the wrap film on the edge portion is configured. A lid-shaped sticking prevention device for covering a roll, which is connected to be freely opened and closed via a hinge at the upper edge portion of the case main body according to claim 1, is provided, and a magnetic substance is provided on a wrap film drawer side edge portion of the sticking prevention device. The wrap film case according to any one of claims 1 to 3, wherein an anti-sticking tool is provided, wherein a magnetic body is also provided on a main body edge opposite to the magnetic body. According to claim 1, a rotation control tool is provided inside the case lid, the rotation control tool is composed of a roll pressing portion and an elastic member, and the roll pressing portion of the rotation control tool responds to a roll diameter change by closing the lid. A wrap film case according to any one of claims 1 to 4, wherein a rotation control tool for pressing the roll is configured. A concave lid cutout is formed in the center of the edge of the case lid on the side of the wrap film drawer of the case lid so that a finger fits into the case, and when the case lid is closed, The wrap film case according to any one of claims 1 to 5, wherein a concave main body notch portion is formed in a size that allows a finger to enter the outer corner portion of the case main body to form a composite notch portion. A partitioning tool provided with a fulcrum at a position corresponding to a short roll storage inside the case main body wrap film drawer side at a position corresponding to a short roll storage, and capable of rotating 90 degrees in the diameter direction of the roll to be stored via the fulcrum. The wrap film case according to any one of claims 1 to 6, characterized by comprising: A main body uneven shape portion is provided on both side surfaces of the case body, and the main body uneven shape portion is fitted to the main body uneven shape portion on both side ends of the fixed tray using the wrap film case as a fixed type. The wrap film case according to claim 1, wherein the wrap film case is provided.

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