JP3415942B2 - Pack film breaker - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pack capable of breaking a pack film such as a vinyl film without damaging or breaking an article packed with the vinyl film or the like. It relates to a film breaker. 2. Description of the Related Art New bills, which are new bills, or old bills, which are already used bills, are usually packed in a state of being packed with a vinyl film in a number of 1000 sheets.
A pack of 1000 bills is transported in a state where the packs of 10 bills are grouped together and packed by vinyl sheets. [0003] The banknotes conveyed in this way must be taken out of the vinyl film at a bank or the like by breaking the vinyl film. Scissors are usually used to break the vinyl film. However, it is not easy to break only the vinyl film with scissors so as not to damage the banknotes packed by the vinyl film. It is not easy to break the outer vinyl film without damaging the vinyl film that packs the banknotes. Also, in order to cut the vinyl film with scissors,
Requires relatively large forces. Recently, hook type cutters have also been developed. FIG. 6 shows an example of a hook type cutter. This cutter is configured by attaching a replacement blade 50 to a holder 40. The replacement blade 50 includes a replacement blade main body 51 in which both side edges 51 a and 51 b linearly extend from the holder 40, and a portion extending from the holder 40 and inward from one side edge of the replacement blade main body 51. A notch 52 cut in an arc shape, and a replacement blade 5 adjacent to the notch 52
And a hook-shaped hook portion 53 provided at the leading end of the “0”. The tip of the hook portion 53 is sharply pointed, and is located on an extension of the side edge 51 a of the main body 51 of the replacement blade, which is continuous with the inner peripheral surface of the notch 52. A blade portion 54 is formed at an inner peripheral edge portion of the notch portion 52 including the inner peripheral edge of the hook portion 53 that is curved in an arc shape. The blade portion 54 is continuous with the inner peripheral edge of the sharp tip of the hook portion 53. The outer peripheral edge of the hook portion 53 that is continuous with the side edge 51b opposite to the side edge portion 51a of the replacement blade main body portion 51 where the notch portion 52 is continuous is linear. [0006] Such a hook type cutter has been developed for cutting a string or the like in which an article is packed in a state of being pulled up. Therefore, it cannot be used for breaking a pack film such as a vinyl film for packing bills. In other words, the tip of the hook 53 is located on the extension of the side edge 51a of the blade body 51 and is sharply pointed.
If the spare blade 50 is slightly inclined with respect to the vinyl film, the tip of the hook portion 52 breaks through the vinyl film and easily damages the banknote packed by the vinyl film. Moreover, even when the vinyl film is broken by the blade portion 54 on the inner peripheral surface of the hook portion 53 by pulling the holder 40, the sharply pointed tip portion of the hook portion 53 easily damages the bill. In this case, if the holder is raised in the vertical direction so as not to damage the bill, the bill may be damaged by a sharp portion between the arc-shaped portion and the linear portion of the outer peripheral edge of the hook portion 53. . When a vinyl film packed with a banknote is further broken, a vinyl film packed with a banknote may be broken. The present invention has been made to solve such a problem, and an object of the present invention is to provide a pack film for packing articles such as banknotes, which can be easily broken without damaging the articles. To provide equipment. [0009] In the pack film breaker of the present invention, a replacement blade is attached to a holder.
What is claimed is: 1. A breaker used for breaking a pack film wrapping an article or a pack , wherein the replacement blade is a flat plate-like replacement attached to a holder such that each side edge extends linearly from the holder. A blade main body and a notch provided in a portion extending from the holder and cut in an arc shape inward from one side edge of the replacement blade main body, and a tip of a replacement blade adjacent to the notch. It is provided in a hook shape, the outer peripheral edge is curved in an arc shape over the whole, and the hook-shaped tip portion is longer than the extension of the side edge continuous to the inner peripheral surface of the notch.
The hook portion, which is located inside the recessed portion and has an arcuate outer peripheral edge at the tip end, and the arcuately curved inner peripheral edge of the notch including the inner peripheral surface of the hook portion, has a hook portion. Destination
And a blade portion formed so as not to reach the outer peripheral edge of the end portion, whereby the object is achieved. In the pack film breaker of the present invention, the entire blade is inclined with respect to the pack film so that the tip of the hook portion comes into contact with the pack film, and the tip of the hook portion is slightly strengthened. Press against the pack film and pull the holder toward you. Thereby, the blade portion provided on the inner peripheral surface at the tip of the hook portion cuts the pack film,
The tip of the hook contacts the product packed with the pack film, but the tip of the hook is curved in an arc shape.
Since no blade portion is formed here, there is no possibility that the article is damaged. In such a state, by further tilting the holder in the direction away from the pack film and pulling the holder, the blade provided on the inner peripheral edge of the hook portion easily breaks the pack film. At this time, the arc-shaped outer peripheral edge of the hook portion comes into contact with the article,
There is no risk of damage to the goods. An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of a pack film breaker of the present invention, and FIG. 2 is an exploded perspective view thereof. This pack film breaker is suitably used for breaking a vinyl film which is a pack film for packing bills. The breaker has a replacement blade 10 and a holder 20 for holding the replacement blade 10. FIG. 3 is a front view of the replacement blade 10. The replacement blade 10 is separated from the holder 20 by the side edges 11a and 11b.
, A flat blade-shaped main body portion 11 extending linearly, a pair of notch portions 12 each of which is cut in an arc shape from one side edge 11a of the main body 11, and each of the notch portions 1.
2 and a pair of hook portions 13 provided in the tip portion of the replacement blade 10 in a hook shape, respectively. A circular engagement hole 15 is formed at the center of the blade main body 11. Each notch 12 is provided with a side edge 11 a of the replacement blade body 11.
It is in a state of opening from. Each hook portion 13 is in a state of being curved in an arc shape, and its outer peripheral edge is formed in an arc shape as a whole, and is attached to one linear side edge 11b of the replacement blade main body portion 11. It is continuous. The tip of each hook portion 13, FIG.
As shown in FIG. 3, as compared with the extension of the linear side edge 11a of the replacement blade main body 11 which is continuous with the inner peripheral edge of the cutout portion 12.
It is located on the inner side (upper side in the figure) that is retracted . The inner peripheral edge of the cutout portion 12 has a relatively gentle arc shape at a portion corresponding to the inner peripheral edge of the hook portion 13, and has a semicircular shape at the inner rear portion. And it is continuous from the inner part to the side edge 11a on the side of the replacement blade main body 10 through a gentle circular arc having a slope of about 70 degrees and a straight line portion. A blade portion 14 is formed at an inner peripheral edge of the cutout portion 12 which is curved in an arc shape except for an inner peripheral edge which is linearly inclined. The outer peripheral edge of the distal end portion of the hook portion 13 has an arc shape with a small radius of curvature, and the blade portion 14 does not reach the outer peripheral edge of the distal end portion. The holder 20 has a thin box-shaped holder body 21 for slidably holding the replacement blade 10, and a slide member 22 which is engaged with the replacement blade 10 and slides on the holder body 21. are doing. The holder main body 21 is provided with a slide groove 21a extending in the longitudinal direction and opened at the side surface of the holder main body 21 at the center in the width direction. One end of the slide groove 21 a is open to the outside from the distal end surface of the holder main body 21, and the other end is located near the base end of the holder main body 21. . The slide groove 21a is a guide portion 21b that protrudes inward so that each side edge of the opening approaches each other. And each guide part 21 of the slide groove 21a
The replacement blade 10 is slidably inserted between b and the bottom surface, and a slide member 22 is slidably fitted between the guide portions 21b. Each guide portion 21b of the slide groove 21 has
Two pairs of fitting inlets 21c are provided to face each other across the opening of the slide groove 21a. Each fitting port 21c is open to the opening of the slide groove 21a, and a set of each fitting port 21c is opened at an appropriate distance from the leading edge of the holder body 21 to form the opening of the slide groove 21a. Are provided opposite to each other. Also, the slide groove 21
a, a set of other fitting openings 21c
Are provided facing each other across the opening of the slide groove 21a. A guide hole 21d penetrating the bottom surface of the slide groove 21a is provided on the bottom surface on the far side of the open end surface. The guide hole 21d is provided in the slide groove 21.
a extends from the central portion in the longitudinal direction to the vicinity of the base end portion,
The portion near the base end is a locking portion 21f that spreads left and right. The slide member 22 slidably fitted in the slide groove 21a has a thin rectangular parallelepiped shape, and is slightly longer than half the length of the slide groove 21a. Each side surface of the slide member 22 has a slide groove 2
Two sets of positioning boss portions 22a fitted between the replacement blade 10 fitted in 1a and each guide portion 21c are provided. Each positioning boss part 22a is provided corresponding to the fitting inlet 21c provided in each guide part 21c. FIG. 4 is a perspective view of the slide member 22 as viewed from the back. On the back surface on the distal end side of the slide member 22, there is provided a cylindrical engagement projection 22b which engages with the engagement hole 15 of the replacement blade 10 fitted in the slide groove 21a. On the bottom surface of the guide groove 21 a of the holder main body 21, a guide groove 21 e into which the engagement protrusion 22 b is fitted and slides is provided in a straight line on the distal end side portion of the holder main body 21. At the end of the slide member 22 opposite to the end at which the engagement protrusion 22b is provided, a slide protrusion 22c that fits and slides in a guide hole 21d provided at the bottom surface of the slide groove 21a. Is provided. The slide projection 22c is formed into a trapezoidal locking projection 22d that fits into the locking part 21f that spreads left and right at the end of the guide hole 21d.
It is provided above. The surface of the slide member 22 exposed from the opening of the slide groove 21a slightly protrudes from the opening of the slide groove 21a from the middle to the front end side. The operation unit 22f is provided in a protruding state. The surface on which the operation portion 22f is arranged has a knurling 22g on the side opposite to the protruding side of the replacement blade 10. An insertion hole 21h is provided at the end of the holder body 21 opposite to the end from which the replacement blade 10 extends so that a string or the like can be hooked. A space is formed on the side of the holder 20 opposite to the side on which the slide groove 21a is provided so as to accommodate the used replacement blade 10, and the space is covered with a suitable cover. Have been done. In the breaker having such a configuration, the replacement blade 10
Is inserted into the slide groove 21a from the open distal end surface of the slide groove 21a, and is held so as to extend from the holder body 21 by a predetermined length. In such a state, the positioning boss portions 22a of the slide member 22 are fitted into the fitting inlets 21c of the holder body 21, respectively, and the slide member 22 is slid in the longitudinal direction between the guides 21b. Then, the cylindrical engagement protrusion 22 b of the slide member 22 is fitted into the engagement hole 15 of the replacement blade 10. Thereby, the slide member 22 is engaged with the replacement blade 10 and is slidably engaged with the slide groove 21a. In this manner, the replacement blade 10 is
When the slide member 22 is not used for breaking the pack film, the slide member 22 is attached to the slide groove 2.
Along 1a, it is slid to the base end side of the holder main body 21. Thereby, the slide protrusion 22c provided at the base end of the slide member 22 slides along the guide hole 21d, and the locking protrusion 22d of the slide member 22 is formed.
Is engaged with the locking portion 21f. In such a state, the entire blade 10 is retracted into the holder main body 21 as shown in FIG. When used for breaking the pack film, the slide member 22 is slid to the front end side of the holder body 21 along the slide groove 21a. Thereby, the slide projection 22c of the slide member 22 is
After slipping out of 1f, the slide protrusion 22c slides along the guide hole 21d. And the slide member 2
When 2 is slid to the tip of the holder main body 21, almost half of the replacement blade 10 projects from the holder main body 21. In such a state, for example, when the vinyl film packed with the banknotes is to be broken, the hook portion 1 of the replacement blade 10 is held with the holder main body portion 21 held in hand.
(3) The tip portion is slightly pressed slightly against the vinyl film, and the entire holder body 21 is pulled toward the user. The hook portion 13 of the replacement blade 10 is connected to a side edge 11 a of the replacement blade body 11.
In order to press the distal end portion of the hook portion 13 against the vinyl film, it is necessary to slightly incline the base end portion of the holder main body 21 so that the base end is upward. When the holder main body 21 is inclined and the tip of the hook 13 of the replacement blade 10 is pressed against the vinyl film, the outer peripheral edge of the tip of the hook 13 has an arc shape. The vinyl film is not cut because the blade portion is not formed on the outer peripheral edge. However, when the front end portion of the hook portion 13 is slightly pressed firmly against the vinyl film and is pulled forward, the hook portion 13 inner peripheral surface Is cut off a part of the vinyl film, and the tip of the hook 13 enters the vinyl film. In this state, the holder body 2
The holder main body 21 is tilted so that the base end of the hook 1 is positioned further upward, and the outer peripheral edge of the hook 13 is brought into contact with the banknote wrapped in the vinyl film. Then, by pulling the entire holder body 21 forward,
The blade 14 formed on the inner peripheral surface of the hook 13 breaks the vinyl film. In this case, since the vinyl film is smoothly cut by the blade portion 14 of the hook portion 13, it is not necessary to particularly apply a force to the replacement blade 10. Further, since the outer peripheral edge of the hook portion 13 is curved in an arc shape, there is no possibility that the bill is damaged by the outer peripheral edge of the hook portion 13 abutting on the bill. The same applies to a case where a pack body in which bills are packed with a vinyl film is further packed with a vinyl film, and the outer vinyl film is broken so that the vinyl film for packing the bills is not damaged. Can be used for As described above, in the pack film breaker of the present invention, the tip of the hook portion of the replacement blade is located inside the side edge of the replacement blade main body. Since it is curved in an arc shape, the packed film can be broken without damaging the packed article. Moreover, due to the blade formed on the inner peripheral surface of the notch,
The pack film can be smoothly broken without applying force. Further, since the outer peripheral edge of the hook portion is entirely curved in an arc shape, there is no possibility that the article is damaged by the outer peripheral edge of the hook portion when the pack film is broken.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a pack film breaker of the present invention. FIG. 2 is an exploded perspective view of the pack film breaker. FIG. 3 is a front view of a replacement blade used for the pack film breaker. FIG. 4 is a rear perspective view of a slide member used for the pack film breaker. FIG. 5 is a perspective view showing a state in which a spare blade of the breaker for the pack film is stored. FIG. 6 is a perspective view of a main part showing an example of a conventional hook type cutter. DESCRIPTION OF REFERENCE NUMERALS 10 Replacement blade 11 Replacement blade main body 11a Side edge 11b Side edge 12 Notch 13 Hook 14 Blade 15 Engagement hole 20 Holder 21 Holder main body 21a Slide groove 21b Guide 21c Guide entrance 21d Guide hole 21f Locking part 22 Slide member 22a Positioning boss part

Claims (1)

(57) [Claims 1] A breaker which has a replacement blade (10) attached to a holder (20) and is used to break a pack film wrapping an article or a pack body. there are, the replacement blade (10) holders each side edge from (20) (11a, 11b) are flat spare blade body portion attached to the holder (20) so as to extend in a straight line (11) And is provided in a portion extending from the holder (20) ,
A notch (12) cut in an arc shape inside from one side edge (11a) of the replacement blade body (11) , and a hook-like portion is provided at the tip of the replacement blade adjacent to the notch (12). The outer peripheral edge is curved in an arc shape as a whole, and the hook-shaped tip is located on the inner side recessed from the extension of the side edge (11a) continuous with the inner peripheral surface of the notch (12). In addition, a hook portion (13) having an arcuate outer peripheral edge at the distal end portion and an arcuately curved inner peripheral edge portion of a notch portion including the inner peripheral surface of the hook portion (13) are provided with a hook portion ( 13) Outer edge of tip
And a blade portion (14) formed so as not to reach .