JPH0549620U - Sheet distribution case - Google Patents

Abstract

(57) [Abstract] [Purpose] In a distribution case having a function of cutting a sheet such as a wrap film, it is possible to eliminate the problem that a cutting tooth damages a finger or the like, and the problem of waste disposal due to the cutting tooth. [Structure] A cutting tooth 20a for cutting various sheets is formed of a paper material, and in order to increase the strength of the cutting tooth 20a, the cutting tooth 20a extends from a tooth tip toward a base portion and a folding curve (d). The cutting tooth 20a is mountain-folded by bending along the folding curve (e) extending from the base of the curve toward the root of the tooth. By making a mountain fold of the cutting tooth 20a,
The stiffness of the teeth is strengthened to increase the strength, and the sheets are prevented from being easily deformed by the reaction force applied from the sheet when the sheet is cut, so that the sheet cutting function can be effectively exhibited. In addition, since the teeth are not excessively sharp like those using metal cutting teeth, there is no damage to fingers etc. during use,
In addition, since no metal is used, problems in waste disposal can be eliminated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet distribution case in which various sheets such as synthetic resin wrap films, aluminum wheels, and kitchen paper sheets used for food packaging are cut into desired lengths, and in particular, the various sheets are cut. The present invention relates to a sheet distribution case configured to be capable of incineration processing and recycling processing of cutting members.

[0002]

[Prior Art]

 In a conventional sheet distribution case as disclosed in, for example, Japanese Utility Model Publication No. 61-22823 shown in FIG. 16, a case body 1 made of cardboard has a bottom plate 1a, both end plates 1b and 1c, and a front plate. It is a rectangular parallelepiped box having a side plate 1d and a back plate 1e. A lid plate 2 is integrally extended to an upper edge portion of the back plate 1e of the case body 1, and a boundary portion between the back plate 1e and the lid plate 2 is a hinge portion 2a having a crease. A cover lid piece 3 is integrally extended at the tip of the lid plate 2, and a cutter 4 having saw teeth serving as a cutting member is provided at a tip edge portion thereof. The film roll 5 having the core wrapped with the wrap film W is housed in the case body 1. The wrap film W is guided from the upper opening 1f of the case main body 1 between the front side plate 1d and the covering lid piece 3 and pulled out to the outside. After the lap film W is drawn to a desired length, the case body 1 and the drawn lap film W are twisted relative to each other to cut the wrap film W by the saw teeth 4a of the cutter 4.

The cutter 4 of this conventional sheet distribution case is made of metal, and is formed into a shape having saw teeth 4a by press punching of a tin plate, for example, and is caulked or bonded to the back side of the tip of the cover lid piece 3 made of paper. It is attached by means of. The saw teeth 4a formed by this press punching are extremely sharp and easily cut a thin synthetic resin film such as a wrap film or an aluminum foil with a small force. This excellent sharpness of the metal is partly due to the elongation of the metal during punching and the formation of burrs in the punching direction.

Further, Japanese Utility Model Application Laid-Open No. 56-20786 discloses a saw blade for cutting a wrap film of paper or synthetic paper. In addition, here, a cutting member as shown in FIG. 16 of the related art in which the line connecting the tips of the cutting teeth formed at the ends of the cutting member is substantially a straight line is referred to as a linear blade or a linear cutting member. The cutting member as shown in FIG. 1 of the embodiment in which the line connecting the tooth tops is substantially V-shaped is referred to as a V-shaped blade or V-shaped cutting member.

[0005]

[Problems to be solved by the device]

 Among the above-mentioned conventional examples, the cutting member made of a metal plate has sharp cutting teeth, and therefore there is a risk of damaging a finger or the like during use. Furthermore, when disposing of the distribution case after use, it is necessary to separate the case body 1, the cover plate 2 and the cover lid piece 3 made of paper from the metal cutting member, and then dispose of them. The work is very troublesome. Also, if the distribution case after use is incinerated as inflammable waste without performing the above-mentioned separation of paper and metal, the metal cutting member remains unburned, which is a problem in waste disposal.

In addition, the conventional saw blade made of paper is inferior to the metallic one in terms of sharpness, and in addition, as the cutting is repeated, the tips of the cutting teeth are curled and rounded, and the sharpness is sharp. There is a problem that it gets worse. These problems cannot be expected with the paper saw blade formed by punching, as in the case of the metal saw teeth 4a described above, and in the case of a vinylidene chloride resin wrap film, it is particularly difficult to perform cutting. This is because the film stretches and a large amount of deformation force is applied to the tooth tips, and paper with poor rigidity does not have sufficient perforation ability. Furthermore, even if the cutting member is made of a synthetic resin material, the sharpness and the rigidity are still considerably inferior to those of the metal, and improvement of the piercing ability and sharpness thereof has been strongly desired.

In view of the above-mentioned circumstances, the inventors of the present invention have earnestly studied to improve the sharpness and rigidity of the cutting teeth of the cutting member made of paper or synthetic resin material, and as a result, the cutting teeth are mountain-folded by the line extending to the tooth tips. It was found that the sharpness and rigidity are improved by adopting the shape such as "to make", and the punching ability, sharpness, and durability (the number of times of cutting) similar to those of metal for a lap film, etc. are realized, and the present invention is devised. Arrived

[0008]

[Means for Solving the Problems]

 That is, the present invention provides a box-shaped case body, a lid plate disposed in the case body and closing an opening of the case body, a cover lid piece connected to a tip of the lid plate, and the case. In a sheet distribution case having a cutting member for cutting a sheet drawn out from the opening provided in either the main body or the cover piece, the cutting member is formed of paper or a synthetic resin material in a sawtooth shape. Moreover, the cutting teeth formed at the ends of the member are folded in a mountain fold. It is also possible to directly form the cutting member of the paper material on the paper material forming the case main body or the cover lid, or to make the cutting member V-shaped.

[0009]

[Action]

 In the sheet distribution case of the present invention, the cutting teeth formed at the ends of the cutting member are mountain-folded. As a result, the cutting tooth becomes sharper and more rigid due to its increased rigidity, and it resists the deformation caused by the film tension applied to the tooth tip when cutting the sheet, resulting in excellent cutting ability, sharpness and durability. The member is obtained.

Further, the cutting member made of paper or a synthetic resin material does not have burrs, and the sharpness of the teeth is not excessive compared with the one punched from a conventional tin plate, etc. Sometimes there is little danger of injuring your fingers. Furthermore, it is not necessary to separate the cutting member from the case body and incinerate it when disposing of it after use, and it is also possible to recycle the cutting member together with the case body in the case of cutting parts of paper materials. ..

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a wrap film distribution case according to an embodiment of the present invention. The case body 10 of this distribution case is composed of a bottom plate 11, a front plate 12, a back plate 13, and two end plates 14 connecting the bottom plate 11, the front plate 12 and both end portions of the back plate 13 to each other. It is a cube-shaped box having a portion 15. A cover plate 17 extends continuously from the upper edge of the back plate 13 of the case body 10. A boundary portion between the back plate 13 and the cover plate 17 is a hinge portion 16 formed by folding a cardboard as a material. Further, a cover piece 18 is bent at a right angle to the front edge of the cover plate 17 and extends integrally. Further, the left and right end portions of the cover plate 17 and the left and right end portions of the covering lid piece 18 are connected by a side lid piece 19.

A lower edge portion 18a of the covering lid piece 18 is substantially V-shaped, and a V-shaped cutting member 20 having saw-like cutting teeth 20a is attached along the lower edge portion 18a. ing. The cutting member 20 is attached to the inner lower part of the covering piece 18 with the cutting teeth 20a facing downward. In the present embodiment, the cutting member 20 is made of paper material, and the other parts, that is, the case body 10, the lid plate 17, the cover lid piece 18, and the side lid piece 19 which are integrated with the case body 10 are all made of thick paper. Has been done.

Further, a film retaining portion 21 is formed at a substantially central position on the left and right of the front surface of the front side plate 12, which is covered with the cover lid piece 18 when the cover plate 17 is closed. The film retaining section 21 is composed of an adhesive section 21a provided with an adhesive layer and a resin layer 21b covering the surface thereof in a double circle shape. The wrap film W is a core wound in a cylindrical shape, and the wound film roll 5 is housed in a case body 10. The wrap film W is, for example, a vinylidene chloride-based, vinyl chloride-based, polyethylene-based, polypropylene-based, or butadiene-based synthetic resin film.

FIG. 2 shows alone the cutting member 20 used in the distribution case of the wrap film shown in FIG. As shown in FIG. 2, serrated cutting teeth 20 a are formed on the lower edge of the cutting member 20. The cutting member 20 is a V-shaped blade in which the cutting teeth 20a are arranged in a V shape, and the cutting teeth 20a are moved downward from the V-shaped edge portion 18a of the covering lid piece 18 by means such as bonding to the back surface of the covering lid piece 18. It is attached in a protruding state. In the cutting member 20 of FIG. 2, a plurality of triangular teeth are continuously arranged. Of the teeth arranged in the V shape, the tooth (a) located at the apex of the V shape is the largest, the tooth (b) located on the both sides is the second largest, and The teeth (c) are smaller than these. By enlarging the shape of the tooth (a) located at the apex of the V-shape in this way, the tooth (a) is pulled out when the wrap film W is pulled out from the inside of the case body 10 and cut by the cutting member 20. As a result, the first cut is likely to be formed in the center of the film, and the wrap film W can be easily cut using this cut as a trigger.

3 is an enlarged perspective view showing the cutting teeth 20a of the cutting member 20, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIG. 5 is a sectional view taken along line VV of FIG. is there. In the embodiment of FIG. 3, each tooth (a), (b), (c) projects in a triangular shape, and a fold line (d) of a mountain fold extending in the direction of the tooth tip and this fold line (d). Each tooth is mountain-folded by being bent by a mountain-folding folding curve (e) extending from the base of FIG. By this mountain fold, the teeth become sharp and the waist becomes strong, making it difficult for the teeth to be deformed, and it is possible to enhance the ability of the teeth to pierce the film. This mountain fold processing is performed by punching the cutting teeth 20a while press-forming a paper material into a mountain fold shape with a die at the time of press punching, or by cutting out the teeth in advance and cutting each tooth with a die. It can be realized by press molding the folding curves (d) and (e).

As the paper cutting member 20, normal hard paper is preferably used. As an example of the preferred hard paper, high strength paper (manufactured by Morza Co., Ltd.) made by adding polyester fibers and a dispersant to a polyester long fiber having a length of about 20 mm as a main material and making a paper can be mentioned. In the case of a paper cutting member, in order to prevent the fibers from loosening at the tooth tips and the edges on both sides of the tooth tips and to improve durability and waterproofness, melamine resin or phenol resin should be applied to those portions or the entire cutting tooth. It is desirable to impregnate or coat with synthetic resin such as urea resin, polyester resin, epoxy resin, silicon resin, polyphenylene sulfide resin, polystyrene resin and polypropylene resin. Alternatively, the resin-impregnated paper may be produced first, and the mountain folding process may be performed by using the same method as the above-mentioned mountain folding process for paper materials.

Further, as the material of the cutting member 20, it is more preferable to use a glued fiber (vulcanized fiber) plate which is denser and has higher rigidity than hard paper. This method for producing a gelatinized fiber board is carried out by press-bonding a vegetable fiber obtained from Kozo, Mitsumata, wood pulp, etc. in a state of being surface-swelled with a cellulose swelling agent such as zinc chloride or sulfuric acid, and then performing the above-mentioned pressing. The swelling agent is removed. Further, a synthetic resin such as urethane resin, phenol resin, melamine resin, epoxy resin, polystyrene resin, urea resin or polyphenylene sulfide resin is impregnated to improve moisture resistance and hardness is further enhanced. It The thickness of the glued fiber board which is the material of the cutting member 20 is arbitrary depending on the material of the wrap film to be cut, and for example, the thickness of about 0.05 mm to 2.0 mm is used. ..

Note that the mountain-folding process of this gelatinized fiber board can be performed by adopting the same method as the above-described processing method used for the paper material. The glued fiber board itself is a material that is even more rigid and strong when impregnated with resin, but by bending the teeth into mountain ridges, the waist of the teeth can be further strengthened. On the other hand, it can be said that it is an excellent cutting member that has a punching ability, sharpness, and durability similar to metal.

Further, the sheet distribution case of the present invention may be configured to include a cutting member 20 made of a synthetic resin plate. As the processing method, the same method as the melt molding method or the above-mentioned mountain fold processing method for paper materials can be adopted. However, the press forming in the mountain folding process is performed while heating the resin above the softening temperature. In order to further improve the sharpness and durability of the cutting member 20, it is effective to increase the hardness at the tooth tip of the cutting tooth 20a and the edge portions on both sides of the tooth tip. As a method of improving the hardness, thermal spraying and laser processing can be exemplified. This hardness improving method is effective for any of paper, resin-impregnated paper, glued fiber board and synthetic resin board. A sprayed layer of metal or ceramics can be formed on the tooth tip of the cutting tooth 20a and the portions centering on the edge portions on both sides of the tooth tip to increase the hardness of the tooth. A plasma spraying device, a wire rod arc spraying device, or the like is used for forming the sprayed layer. On the other hand, the hardness of the teeth can be increased by cutting out the cutting teeth 20a using a laser cutting device. In this case, the teeth (a), (b), and (c) cut out by the high heat of the laser beam have a partially carbonized cutting surface.

The structure of the cutting teeth 20a is not limited to the arrangement structure shown in FIGS. 2 and 3, and all the teeth may have the same size. Alternatively, the teeth near the apex of the V-shape may be small, and the middle or both ends of the inclined array portions ((i) parts) on both sides of the apex of the V-shape may be large teeth. Further, the teeth do not necessarily have to be arranged continuously, and each tooth or a plurality of teeth may be arranged intermittently, or as a whole, a small tooth in a V shape is formed. They may be in a row and several of them may be spaced apart to form large teeth. Further, the tooth shape is an equilateral triangle, a thin isosceles equilateral triangle, or a shape in which the tips of all the teeth on both sides of the inclined arrangement portion ((i) portion) are directed toward the apex of the V-shaped cutting member. But it's okay. Alternatively, the tips of all the teeth may be arranged so as to face the right edge direction or the left edge direction in FIG. When the teeth are arranged continuously or at a constant pitch, the arrangement density is preferably in the range of about 2 to 20 per cm.

Further, the mountain fold shape of the teeth is not limited to that shown in FIGS. 3 to 5, and may be a fold shape as shown in FIG. The folding method in FIG. 6 is the mountain fold curve (f) extending from the tooth tip toward the tooth base, and the mountain fold curve (g) extending from the base of the fold curve (f) to the root of the tooth. The teeth are mountain-folded by providing a valley-folding curve (h) extending from the valley.

Here, as shown in FIGS. 3 and 6, a fixed folding method using a plurality of types of folding curves (d), (e) or (f), (g), (h) is This is effective when the base material of the cutting member 20 is thin with respect to the tooth size of the tooth 20a. That is, when the base material is thin and the tooth area is relatively large, the polygonal curves shown in (d) and (e) in FIG. 3 and (f), (g), (h) in FIG. All folding curves shown in () can be easily attached by press forming. However, when the area of each tooth is relatively small with respect to the thickness of the base material, it is difficult to insert the bending lines as shown in (e), (g), and (h) above. In such a case, as shown in FIG. 7, only the folding curve (j) extending from the tooth tip of each tooth to the tooth base direction is pressure-molded by a press to make each tooth a mountain fold. Preferably.

Next, in the folding method shown in FIGS. 8 and 9 (cross-sectional view taken along the line IV-IV in FIG. 8), the tip of the cutting tooth 20a is bent along a folding curve (k) oriented in the tooth arrangement direction. It is a thing. With this folding method, it is possible to always orient the tip of the tooth in the direction of contact with the wrap film W. However, since the method of folding shown in FIGS. 8 and 9 does not reinforce the rigidity of the teeth, it is effective when a base material having a certain degree of rigidity such as a cemented fiber board is used. Further, when using a base material which itself does not have a very high rigidity, the folding method shown in FIGS. 10 and 11 (IX-IX sectional view of FIG. 10) may be used. Similar to FIG. 8, this folding method is such that the tooth tips are further bent in the direction of the wrap film W from the surface of the main body of the cutting member 20, but the folding curves (1) and (m) are formed. .. By providing the folding curves (1) and (m), the rigidity of the tooth tip can be increased.

Further, in the examples shown in FIGS. 12 and 13, in the developed cutting tooth as shown in FIG. 12, bending is performed by a bending curve (n) directed from the bottom point of the root of the tooth to the side of the tooth tip. The bent tips are directed toward the wrap film W rather than the surface of the main body of the cutting member 20. In the case of the V-shaped cutting member 20 as shown in FIG. 2, the teeth arranged on the left side of the V-shaped apex are bent along the folding curve (n) shown in FIG. 13 and arranged on the right side of the V-shaped apex. The tooth is bent by a folding curve (reference numeral (o) in FIG. 12) opposite to that in FIG.

As described above, the mountain-folded cutting member and the sheet distribution case in which the mountain-folded cutting member is arranged have been mainly described with respect to the V-shaped blade, but the present invention is not limited thereto, and a linear blade is also suitable. Applicable to When the V-shaped blade 20 is fixed to the inside of the cover lid piece 18 in FIG. 1 by means such as adhesion, the cutting tooth 20a is located on the mountain fold side, that is, in FIG. 3, FIG. 6, FIG. 7, FIG. It is desirable that the upper side in FIG. 10 is oriented so as to face the direction opposite to the wrap film W, that is, the valley fold side, that is, the lower side in the above figures is directed to contact with the wrap film W.

When the mountain-folding tooth of the present invention is configured as a straight blade, it is used instead of the conventional metal blade of FIG. Alternatively, a straight blade may be adhesively fixed to the bottom plate so that the cutting teeth 20a that are mountain-folded forward protrude from the lower edge of the front plate of the sheet distribution case. Further, the cutting member of the present invention does not have to be a separate body from the case body or the covering lid piece, and as shown in FIG. 14, the V-shaped edge of the covering lid piece 18 may be used as the cutting tooth 18b as it is, or as shown in FIG. As shown in FIG. 15, the upper edge of the front side plate 12A may be used as the cutting tooth 12B as it is. The cutting teeth 18b and 12B are preferably subjected to the resin impregnation treatment and / or the hardness treatment described above.

Furthermore, in each of the embodiments shown in FIGS. 3, 6, 7, 8 and 10, it is not necessary to fold all teeth, for example, only the largest tooth (a) is fold-folded, or Only the tooth (a) and the second largest tooth (b) may be mountain-folded and the other teeth (c) may not be mountain-folded. When cutting teeth arranged in a V-shape are provided, if the wrap film W is cut by the teeth (a) and (b) located at the apexes of the V-shape, then the wrap film W is triggered by this cut. Since it can be easily cut, if only the teeth (a) or (a) and (b) are mountain-folded to keep the waist strong, the wrap film W can be formed without mountain-folding the other teeth (c). You can fully demonstrate the function of disconnecting. Furthermore, the distribution case according to the present invention is not only suitable for cutting synthetic resin wrap film W, but can also be used for cutting various sheets such as aluminum foil and kitchen paper sheets.

[0028]

[Effect of the device]

 As described above, according to the present invention, since the cutting member for cutting the sheet is made of a paper material or the like, it is unlikely that the cutting teeth are excessively sharp like the conventional cutting member made of a metal plate. As a result, the finger will not be injured during use. It also eliminates the need to separate and dispose of after use such as with metal cutting members. In addition, since the teeth formed by the paper material are mountain-folded and the rigidity of the teeth can be strengthened, it becomes possible to easily cut a sheet such as a wrap film even if the teeth are made of paper material.

[Brief description of drawings]

FIG. 1 is a perspective view showing a wrap film distribution case as an example of an embodiment of the present invention;

2 is a front view showing the cutting member alone attached to the distribution case of FIG. 1,

FIG. 3 is a partially enlarged perspective view showing a cutting tooth of a cutting member,

4 is a sectional view taken along line IV-IV of FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a partially enlarged perspective view showing a folded shape of a cutting tooth according to another embodiment,

FIG. 7 is a partially exploded perspective view showing a cutting tooth according to still another embodiment,

FIG. 8 is an enlarged perspective view of a cutting tooth showing an example in which a tooth tip is mountain-folded so as to face the direction of the wrap film;

9 is a sectional view taken along line IX-IX of FIG.

FIG. 10 is an enlarged perspective view of a cutting tooth showing a bending structure according to another embodiment,

11 is a sectional view taken along line XI-XI of FIG.

FIG. 12 is a developed plan view of cutting teeth showing another folding method;

13 is an enlarged perspective view showing a cutting tooth bent along the cutting line shown in FIG. 12;

FIG. 14 is a perspective view showing an embodiment in which the cutting member is formed integrally with the covering piece;

FIG. 15 is a perspective view showing still another embodiment of a cutting tooth forming portion;

FIG. 16 is a perspective view showing a conventional wrap film distribution case;

[Explanation of symbols]

W Wrap film 5 Film roll 10 Case body 11 Bottom plate 12 Front side plate 13 Back plate 14 End plate 15 Opening 16 Hinge part 17 Cover plate 18 Covering piece 19 Side cover piece 20 Cutting member 20a Cutting tooth (d) (e) (f) ) (G) (h) (j) (k) (l)
(M) (n) Folding curve

Claims (3)

[Scope of utility model registration request] 1. A box-shaped case main body, a cover plate disposed in the case main body and closing an opening of the case main body, a cover lid piece connected to a tip of the cover plate, and the case main body or the cover lid piece. In a sheet distribution case having a cutting member for cutting a sheet drawn out from the opening provided in any of the above, the cutting member is formed of paper or a synthetic resin material in a sawtooth shape, and is provided at an end portion of the cutting member. A sheet distribution case, wherein the formed cutting teeth are folded in a mountain fold. 2. The sheet distribution case according to claim 1, wherein the cutting member for the paper material is directly formed on the paper material forming the case body or the covering piece. 3. The sheet distribution case according to claim 1, wherein the cutting member is substantially V-shaped.