JP3089367B2 - Film cutting tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film cutting tool which cuts a long film wound in a roll form at predetermined intervals and cut along a perforation.

[0002]

2. Description of the Related Art Generally, when a store such as a supermarket purchases products such as fresh foods, vegetables, and frozen foods, these products are packed in a bag made of synthetic resin film and then put in a handbag. This bag is obtained as follows. That is, a synthetic resin-made cylindrical long film is intermittently sealed at a predetermined interval (corresponding to the height of the bag), and a perforation is formed along the seal portion (the bottom of the bag). Form. The film is wound around a roll shaft to form a roll, is incorporated in a film cutting device, and is arranged on a counter of a store.

[0003] When a shopper needs a bag, he or she grabs the drawer end of the film, pulls it out of the roll and cuts it along the perforation. This conventional film cutting apparatus 1 is shown in FIG. That is, the roll 3 around which the film 2 is wound is rotatably supported, moves by its own weight, and the side surface thereof is in contact with the cutting lever 4. Then, when the film 2 is pulled out and the perforation matches the cutting lever 4, if the film 2 is pulled strongly, the film 2 is cut along the perforation and the bag 5 remains at hand.

[0004]

In the film cutting apparatus 1 described above, when the film 2 is cut along the perforations, the film 2 is strongly pulled, so that the entire film 2 is elongated by the tensile force. You. When the film 2 is cut, the tensile force is removed, so that the film 2 is restored. However, due to the reaction, the end 2a of the film 2 returns to the inside of the film cutting device 1, and when the film 2 is used again, In addition, there is a problem that the roll 3 must be rotated to find the end 2a of the film 2.

When the film 2 is pulled strongly,
If the perforation is shifted back and forth with respect to the cutting lever 4 or the film 2 is gradually pulled out, the length corresponding to several bags 5 is not cut along the perforation. There is a problem that the film 2 is pulled out. The present invention has been made in view of the above circumstances, and an object thereof is to reliably cut a film at each perforation and, when the film is cut, to ensure that a drawing end of the film is outside the cutting device. The remaining object is to provide an easy-to-use film cutting tool.

[0006]

According to the first aspect of the present invention, a perforation is formed at a predetermined interval, and a long film wound in a roll shape is pulled out through an insertion portion to form a perforation. A film cutting tool that cuts the insertion portion in an elongated shape and changes the width of the insertion portion to the width of the film.
And sets the smaller than, provided a cutting groove for imparting a frictional force capable of cutting the film along the perforation in contact with the film issued <br/> Pull both ends of the insertion passage part, During ~
It does not impart a continuous flared friction force between the cutting groove in central portion
The feature is that the guide portion is provided .

[0007] The second aspect of the present invention is characterized where the disconnect groove portion is formed in a wave shape.

[0008]

According to the first aspect of the present invention, when a long film wound in a roll shape is pulled out through the insertion portion, the cutting groove comes into contact with the film, and a frictional force is applied between the two. . When the perforation of the film passes through the cutting groove, the perforation at the side end of the film is cut by the frictional force. The cut portion spreads sequentially toward the center, the entire film is cut along the perforations, and the bag remains at hand. On the other hand, in the center part of the film inserted into the guide,
Since no frictional force is applied, the central portion of the film is pulled out before the side edge, and when the film is cut, the drawn end projects outside the insertion portion.

Further , the side end of the film is drawn out while being narrowed down in the width direction by the cutting groove portion, and the other portion is wavy and stored in the guide portion, so that the film is unevenly distributed on one side of the insertion portion. Since the side edge always passes through the cutting groove, the film is reliably cut at each perforation. Further, the film can be smoothly pulled out, and the film can be more reliably cut. According to the second aspect of the present invention, the cutting groove imparts a large frictional force to the film, so that the film can be reliably cut even when the film has a large thickness.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a film cutting apparatus will be described below with reference to FIGS. The case 11 is formed in a box shape, and a lid 12 is attached to one side surface so as to be openable and closable. The long film 13 has a cylindrical shape made of a synthetic resin and has a predetermined interval (corresponding to the height of the bag 14), and a seal portion 15 (becoming the bottom of the bag) is formed intermittently and a seal is formed. A perforation 16 is formed along the portion 15. The film 13 is wound around a roll shaft 17 to form a roll 18. The roll 18 is rotatably supported by the case 11 such that the roll shaft 17 is substantially parallel to the lid 12.

The film cutting tool 19 has a thickness of, for example, 1 m.
m, and an insertion portion 20 is formed in an elongated shape in the longitudinal direction of the center portion.
0 is attached to the lid 12 with a screw 22 inserted through the hole 21 so that the roller 0 is substantially parallel to the roll shaft 17. The insertion portion 20 has cutting grooves 23 formed at both ends thereof.
A spindle-shaped guide portion 24 which is continuously expanded with a smooth curve is formed between 3, 3. The width dimension of the insertion portion 20 is set smaller than the width dimension of the film 13, and in the present embodiment, is set between 40 and 60%. The cutting groove 23 has a height of 0.1 to 0.2 mm.
Are formed at the outer ends of the cut grooves 23, 23 in a continuous manner with a smooth curve. When the film 13 is inserted into the cutting groove 23, the film 13 is squeezed in the width direction while being cut in the cutting groove 2.
Since the film 13 is drawn out while being in contact with the lower surface of the film 3, even if the thickness of the film 13 is smaller than the height of the cutting groove 23, a frictional force is applied between the two.

Next, the operation of the above configuration will be described. (1) When setting the roll 18 The lid 12 is opened, and the roll shaft 17 of the roll 18 is
To be rotatable. Next, the user holds the drawing end portion 13a of the film 13 and pulls out the film 13 through the guide portion 24 of the insertion portion 20 (see FIG. 2). Both side end portions 13b of the film 13 are moved in the direction of arrow A and inserted into the cutting groove 23 (see FIG. 3). Then, the lid 12 is closed.

(2) When pulling out the bag 14 The film 13 is pulled out by holding the drawer end 13a. Then, while the film 13 is being narrowed down in the width direction, both ends thereof pass through the cutting groove 23, and the central portion is folded in a wave shape and passes through the guide portion 24. By the way, the cutting groove 2
3 is in contact so as to pinch the film 13,
Since a frictional force is applied between the two and not in the guide portion 24, the central portion of the film 13 is drawn out before the side end portion 13b. Perforation 1 of film 13
When the film 6 passes through the cutting groove 23, the frictional force between the cutting groove 23 and the film 13 causes the side end 1 of the film 13.
The perforations 16 of 3b are cut. The cut portion successively spreads to the center, the film 13 is cut along the perforations 16, and the bag 14 remains at hand. In this case, the central portion of the film 13 is pulled out of the insertion portion 20 and
Since it does not return, it functions as the next drawer end 13a.

According to the above embodiment, the following effects can be obtained. (1) Since the cutting groove portion 23 comes into contact with the film 13 and a frictional force is applied between the two and is not applied in the guide portion 24, the central portion of the film 13 is pulled out before the side end portion 13b. It is. Then, when the perforation 16 passes through the cutting groove 23, the perforation 16 of the film 13 is sequentially cut from the side end 13b toward the center by the frictional force. When the film 13 is cut, the central portion of the film 13 is pulled out of the cutting tool 19 and does not return, so that it can function as the next drawn end 13a, and the usability can be significantly improved.

(2) The side end 13b of the film 13 pulled out always passes through the cutting groove 23 while being narrowed down in the width direction by the cutting groove 23, so that the film 13 can be drawn out smoothly and at every perforation 16. And perforation 16
Is surely performed, and the bags 14 are pulled out one by one. That is, unlike the related art, several bags 5 are not continuously pulled out. (3) Since the drawn-out end 13a of the film 13 remains reliably outside the cutting tool 19, there is no need to operate the roll 18 until the film 13 is used up. That is, in the conventional cutting device 1, when the end 2a of the film 2 returns to the inside, the roll 3 is operated to find the end 2a of the film 2 at the next use, so that the entire cutting device 1 is used. Is placed on the counter, but in the present invention, if the cutting tool 19 is attached to the upper surface or the side surface of the counter, the roll 1
Since 8 can be stored inside the counter, the upper surface of the counter can be effectively used.

FIG. 4 shows a second embodiment of the present invention. The difference from the first embodiment is that the cutting groove 26 is formed in a wavy shape. According to this embodiment, the film 1
When the film 3 passes through the cutting groove 26, a large frictional force is applied to the film 13, so that the film 13 can be applied to a film having a large thickness. FIG. 5 shows a third embodiment of the present invention. The difference from the first embodiment is that the cutting tool 27 is formed of an elastically deformable soft synthetic resin plate, and a metal The holding plate 28 is attached. The holding plate 28 has an opening 28 a slightly larger than the insertion portion 20. The film 13 is pulled out in the direction of the arrow while deforming the cutting groove 23 when passing through the insertion portion 20, and a large frictional force is applied to the film 13.
The amount of deformation of the cutting groove 23 is regulated to a predetermined value or less by the pressing plate 28.

The present invention is not limited to the embodiment described above and shown in the drawings. For example, a, the roll shaft 17 of the roll 18 is supported in the vertical direction, and the cutting tool 19 is inserted through the same. The unit 20 may be attached so as to be parallel to the roll axis 17. b, The shape of the guide portion 24 may be rectangular or star-shaped, and further, in use, the upper portion of the guide portion 24 may be open to the outside. c, the height of the cutting groove 23 is determined by the material of the film 13;
What is necessary is just to select suitably according to the surface finish state and thickness dimension. d, The cutting tool 19 may be configured by combining two or three parts, and may be made of metal. Various modifications are possible without departing from the gist.

According to a first aspect of the present invention, there is provided a film in which perforations are formed at predetermined intervals and a long film wound in a roll is pulled out through an insertion portion and cut along the perforations. Cutting tool, wherein the insertion portion is elongated
And set its width smaller than the width of the film.
Rutotomoni, along the perforation in contact with the film issued can pull at both ends of the insertion passage part is provided a cutting groove for imparting a frictional force capable of cutting the film, the cutting groove and continuously in the central portion in <br/> of providing the guide portion does not impart flared friction force, the friction force is applied to the film portion that passes through the cutting grooves, since it is not granted by the guide portion, the central portion of the film is, the side Pulled out before the end. Then, when the film is cut, the draw-out end of the film remains on the outside of the cutting tool with certainty, and there is an effect that the usability is extremely good.

Further, since the width of the insertion portion is set smaller than the width of the film, the film always passes through the cutting groove, and the film is reliably cut at each perforation.
There is an effect that the upper surface of the counter can be used effectively.
You. Interpolation through portion is formed in an elongated shape, since the cutting groove at both ends is provided, the drawer of the film is smooth, and an effect that the cutting of the film is carried out more reliably. According to the second aspect of the present invention, since the cutting groove portion is formed in a wave shape, the cutting groove portion applies a large frictional force to the film, so that the film can be reliably cut even when the film is thick. You.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment in which a part applied to a cutting apparatus is cut.

FIG. 2 is a perspective view showing a process of mounting a film.

FIG. 3 is a perspective view showing a different state in a process of mounting a film.

FIG. 4 is a front view of a cutting tool according to a second embodiment.

FIG. 5 is an enlarged vertical sectional side view of a cutting tool according to a third embodiment.

FIG. 6 is a side view of a conventional film cutting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 13 Film 13a drawn-out end part 14 Bag 15 Seal part 16 Perforation 18 Roll 19 Film cutting tool 20 Inserting part 23 Cutting groove part 24 Guide part 26 Cutting groove part 27 Cutting tool

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 57-131559 (JP, U) Japanese Utility Model Showa 57-88742 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B65B 67/10

Claims (2)

(57) [Claims] 1. A film cutting tool in which perforations are formed at predetermined intervals and a long film wound into a roll is pulled out through an insertion portion and cut along the perforations. The insertion portion is formed in an elongated shape and its width dimension is set to the width of the film.
And sets the smaller than the dimensions on both ends of the insertion passage part
In contact with the argument it can film issued at the perforation set the cutting groove which imparts a frictional force capable of cutting the film
Only, the cutting tool of the film, characterized in that a guide portion that does not impart a continuous flared friction force between the cutting grooves in the central portion. 2. A cutting groove cutting tool of the film of claim 1 Symbol mounting, characterized in that it is formed in a wave shape.