JPH0447075Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is suitable for cutting roll film for wrapping, especially for wide films, and is integrated with a box that supports or houses the roll film. Concerning what is provided.

(Prior art) In order to preserve food placed on plates, etc., wrapping film is wound around the heart canal in a roll and housed in a box made of paper, etc. When in use, the lid is opened. Pull out the tip of the film from the section to the required length, and
It is cut from one side end by a cutting blade of a saw blade slightly protruding from the edge of the box.

The roll film and the box that houses it are generally made of cardboard and are relatively light, so hold the box with one hand, pull out the film with the other hand, and cut the film with one end of the cutting blade. I was using it. This is easy to use and extremely convenient for roll films whose width is not particularly wide.

(Problems to be solved by the invention) However, for commercial purposes, an extremely wide film is required in order to store food for a large number of people on a large plate. When such a wide roll film is housed and used in the conventional box body as described above, the film can be cut with one hand, that is, because only a portion of the film can be held, the cut films may partially overlap each other when cutting is completed. They overlap and adhere to each other, and must be peeled off again to return to a perfectly flat surface. This is extremely troublesome and may even be impossible to remove if the degree of adhesion is strong. Furthermore, since the film is not held in any way during cutting, the tensile force in the width direction during cutting may cause wrinkles or overlaps in the film, which also prevents the film from remaining flat after cutting. This is also the reason why there is no such thing.

(Means for Solving the Problems) The present invention solves the conventional problems as described above, and provides a new method that does not cause the film to stick tightly after cutting, and can be wrapped as is on a plate, etc. during cutting. It is an object of the present invention to provide a wrapping roll film cutting device particularly suitable for wide films.

In order to achieve the above-mentioned object, the present invention includes a support part that supports a roll film for wrapping wound around a heart tube so that it can be freely pulled out from the tip of the film, and a cutting part that cuts the pulled-out film. The cutting part includes a film holding part in which a slit parallel to the axis of the heart tube is formed and an upper surface of at least one edge of the slit serves as an adhesion surface for the film; A blade running body that runs while holding the blade in a state of protruding upward from the contact surface position, and a driving body that drives the blade running body so that the blade runs from one end of the slit to the other end. to have, to consist of.

In the present invention having such a configuration, the support portion is
It is sufficient to support the rolled film so that it can be freely drawn out from the tip of the film, and even if it is a conventional storage box in which the rolled film is rotatably accommodated in the internal space, the rolled film can be held in the heart tube. The type does not matter, even if it has a shaft that is rotatably supported.

Further, in the present invention, the film holding section itself is for holding the pulled out film on a close contact surface, and in order to improve the close contact with the film, the metal member is made into a mirror-like state, or The surface of the film holding portion can be formed using a material with high adhesiveness, for example, a resin such as urethane rubber. Further, the shape of the surface of the film holding section may be, for example, a flat surface, but it may also be curved in the direction in which the film is pulled out.

The blade running body can be, for example, a sprocket, a winding running body such as a chain stretched over the sprocket, and a blade body attached to the winding running body. It is preferable to provide a stopping means for stopping the driving body so that the driving body waits at a forward position at one end.

(Function) According to the present invention as described above, the film is cut in the following manner.

First, pull out the tip of the wrapping roll film that is rotatably supported by the support section, and when the length beyond the blade reaches the desired length, bring the film into contact with the film holder and hold it tightly there. and keep it on standby in preparation for use.

When pulling out the film, lift the film slightly upward to release the adhering state, pull it out to the desired length, bring the film downward, bring it into contact with the adhesion surface of the film holder, and then remove the film. Keep it close.

In this state, an input from a switch or the like causes the blade waiting at one end of the slit to travel to the other end, thereby cutting the film.

At this time, the film is closely held by the contact surface of the film holder, and the film is not wrinkled or partially overlapped. It is also possible to firmly press the film against the adhesion surface with both hands during cutting, thereby making it possible to further strengthen the adhesion holding force.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIG. 1 is a partially cutaway front view showing an entire apparatus according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the apparatus shown in FIG. 1.

In FIG. 1, reference numeral 10 denotes a box body that rotatably accommodates the roll film 20, and includes a base portion 11 that extends long in the direction perpendicular to the plane of the paper, and a rotatable box at the rear of the base portion 11 (the left portion in FIG. 1). An inverted L-shaped lid body 12 is movably connected, and a roll film 2 is mounted on a base part 11.
0 in the axial direction of the heart tube 21, and a support portion 13 in which a V groove 13A is formed to rotatably receive the heart tube 21 while regulating its position. The support portion may take the form of a protrusion that is loosely fitted into the core tube 21 of the roll film 20 so as to rotatably support the core tube 21 from both ends.

The base part 11 extends forward (to the right in FIG. 1), and on the extended part are a film holding part 30 for holding the film pulled out from the roll film, and a film holding part 30 for cutting the film. A blade traveling body 36 having a blade that travels along the blade body, and a driving body 40 that drives the blade traveling body are provided.

The film holding section 30 has a frame shape that covers the blade traveling body 36 and the drive body 40, which will be described in detail later, and has a slit on its upper surface that is substantially parallel to the axis of the core tube 21 of the roll film 20. 31 is formed over a range that is at least longer than the length of the heart tube of the roll film 20. At least one of both side edges of the slit 31 is formed with a contact surface 32 that is highly adhesive to the film. In the illustrated case, the contact surface 32 is made of resin such as urethane rubber.

As shown in FIG. 2, sprockets 3 are installed at both ends of the slit 31 directly below the slit 31.
3A and 33B are rotatably supported by struts 34A and 34B, respectively, and both sprockets 33
A winding traveling body 35B, such as a chain, constituting the blade body traveling body 36 is stretched between A and 33B. The blade 35A is attached to the slit 3 on the winding traveling body 35B.
1 is attached so that it protrudes.

A gear 41 is attached to the shaft of the sprocket 33A, and a gear 43 of a drive motor 42 meshes with the gear 41 to form a drive body 40.

Further, the above-mentioned support column 34A is provided with a stopping means 51 that detects the passing of the blade body 35A and releases the drive of the motor in order to stop the winding traveling body 35B such as a chain that constitutes the blade body traveling body 36. .

Next, the procedure for cutting a film using the apparatus of this embodiment having the above-described structure will be explained.

First, when the device is not in use, the blade 35A is located at one end of the slit (the left end in FIG.
It is in a position where it will not be a problem even if the leading edge of the film is pulled out.

In this state, as shown by the two-dot chain line in FIG. 1, the film F is pulled out slightly upward, and when the pulled-out length reaches a predetermined length, the film is brought down and cut. The parts are held in close contact with the contact surface 32.

By turning on a switch (not shown) while maintaining the above-mentioned closely held state, the motor 42
is driven to run a winding traveling body 35B such as a chain. Then, the blade 35A attached to the wrapping traveling body 35B and protruding from the contact surface
travels from one end of the slit 31 to the other end, and as a result of this travel, the film F
(solid line F in Figure 1) is cut. At this time, if the operator holds the film at the close holding position, the close holding state will be more reliable.

After cutting the film, the blade 35A passes through the other end of the slit and attempts to return to the one end, but at this time, it is detected by the stopping means 51, and as a result, the motor 42 is stopped. Blade body 35
A will stand by in the position mentioned above in preparation for the next cutting operation.

(Effects of the invention) As described above, the present invention provides a film holding portion that tightly holds the film at the edge of the slit parallel to the heart tube of the rolled film, and also allows the blade to run within the slit. Therefore, the film is held very reliably over its entire width and is cut without wrinkles or the like. Also, the film will not stick to parts of the film,
Usability is greatly improved. Especially for wide films, when pulling out the film with both hands,
It becomes possible to cut while maintaining the above-mentioned close contact with both hands. Furthermore, if a plate or the like is placed next to the device, it becomes possible to immediately perform the wrapping operation.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an entire apparatus according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the apparatus shown in FIG. 1. 13...Support part, 20...Roll film, 3
0...Film holding section, 31...Slit, 32
...Tight surface, 35A...Blade body, 35B...Wrap running body, 36...Blade body running body, 40...Driving body.

Claims (1)

[Claims for Utility Model Registration] (1) A device comprising a supporting part that supports a roll film for wrapping wound around the heart canal so that it can be pulled out from the tip of the film, and a cutting part that cuts the pulled out film. , the cutting part includes a film holding part in which a slit parallel to the axis of the heart tube is formed and an upper surface of at least one edge of the slit serves as a contact surface for the film; A blade running body that moves while holding the blade in a state of protruding upward from a position, and a driving body that drives the blade running body so that the blade runs from one end of the slit to the other end. A wrapping roll film cutting device characterized by: (2) The blade running body consists of a sprocket, a winding running body on which the sprocket is stretched, and a blade attached to the winding running body, and the driving body drives the sprocket so that the blade moves one end of the slit. A roll film for wrapping as set forth in claim (1) of the utility model registration claim, characterized in that the wrapping traveling body is connected to a stopping means for stopping the wrapping traveling body at the front position when the wrapping traveling body comes to the front position. Cutting device.