CN1476402A - Container for packaging - Google Patents
Container for packaging Download PDFInfo
- Publication number
- CN1476402A CN1476402A CNA028031407A CN02803140A CN1476402A CN 1476402 A CN1476402 A CN 1476402A CN A028031407 A CNA028031407 A CN A028031407A CN 02803140 A CN02803140 A CN 02803140A CN 1476402 A CN1476402 A CN 1476402A
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- China
- Prior art keywords
- blade
- container
- cutting knife
- preservative film
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/38—Devices for discharging contents
- B65D25/52—Devices for discharging successive articles or portions of contents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
- B65D83/0805—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall
- B65D83/0811—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall with means for assisting dispensing
- B65D83/0841—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall with means for assisting dispensing and for cutting interconnected articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Packages (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
A container for packing purpose includes: a container-body, which accommodates the wrap-film wound in a roll-shape; a cap-body, which is connected to the rear wall of said container-body and can move back; a V-shaped saw-knife cutter, which is mounted on the front edge of the front wall of said cap-body. In the knife of said cutter, at least when the cap is closed and the knife is nearest to the bottom side of the container-body, the radius of the curvature for the front end of the knife is made to be larger than 100 mum and smaller than 145 mum, the height H of the valley in the front end of said knife is smaller than 50 mum. In addition, the relation of the curvature radius R and the valley-height H in the front end of said knife becomes H(mum) >= R(mum)-95. By this means, the wrap-film can be cut easily and accurately, and the longitudinal cracking of the wrap-film can be prevented.
Description
Technical field
The present invention relates to be used for being packaged in employed cutting knife in the container for packing, particularly container for packing of the thin-film bodies such as preservative film, aluminium foil or paper of reeling in the form of a roll on the cylinder frame.
Background technology
Past has the preservative film of various ways known with container, and most by with the manufacturing of duricrust paper, be used for holding the vessel of the preservative film of reeling in the form of a roll, and be integral the lid formation of setting with this vessel.In addition, the serration cutting knife that cuts off of the preservative film that is used for will be from container extracting out generally is mounted on the back side of lid portion front.
When using this container, lid is opened so that the front end of preservative film exposes.Afterwards, after the front end that pinches film with finger is extracted it out, on cover cap, utilize cutting knife that the preservative film of extracting out is cut off.
In addition, the preservative film in past is with employed cutting knife in the container, and having a kind of is that the intermediate portion is compared with two end portions on the position on the base that is arranged on more close container and is in the shape of the letter V (with reference to special fair 4-19092 communique).According to this shape, be that the most outstanding position from cutting knife begins preservative film is cut off, therefore, be the shape that can cut off reliably and be easy to cut off.
But above-mentioned existing preservative film is with in the container, even its cutting knife is in the shape of the letter V, some also exists still needs when cutting off preservative film with bigger power, perhaps container along with use problem such as damage.In addition, particularly use the container of vee shape cutting knife, when preservative film is extracted out, take place sometimes that preservative film hangs on the most outstanding blade in middle part and (extraction direction) phenomenon of tearing longitudinally.
This problem exists in holding other container of paper or aluminium foil too.
, the objective of the invention is for this reason, a kind of container for packing that can be easy to and reliably drum packed articles such as preservative film be cut off and can prevent the packed article longitudinal tear is provided.
Summary of the invention
For achieving the above object, the inventor has carried out conscientiously research at the shape of the blade of centre portion the most outstanding in the vee shape cutting knife, finds that its tip is curved surface, and is formed with burr (with reference to Fig. 2 and Fig. 3).Why form such curved surface and burr, because cutting knife is to be processed to form by stamping-out.In addition, the inventor finds from various experiments, and the shape at the tip of blade, the particularly height of Jian Duan radius of curvature and burr are the particularly cuttability of preservative film and the key factors of longitudinal tear of left and right sides packed article.Learn also that simultaneously because the durability of employed cutting edge (mould) considers that the radius of curvature of the blade of the most outstanding centre portion of the vee shape cutting knife in past is compared with the present invention from the stamping-out processing of cutting knife, it is big that radius of curvature is wanted, and burr is also big.Can think that this burr is more greatly the reason that causes longitudinal tear.
The present invention finishes according to above-mentioned discovery, belong to a kind of container for packing, have, hold the preservative film of reeling in the form of a roll, aluminium foil, the vessel of packed articles such as paper, the lid of disjunctor setting rotationally on the rear wall of vessel, and as the serration cutting knife in the front edge portion of antetheca that is installed in lid, the locational cutting knife that is convex or vee shape in the base that is arranged on more close said vessel is compared in the intermediate portion with two end portions under the state on the cover cap, an one feature is, among the blade of cutting knife, at least with regard under the state on the cover cap with regard to the nearest blade in the base of vessel, the radius of curvature at the tip of this blade (R) is less than 145 μ m, and the height of the burr at the tip of this blade (H) is less than 50 μ m.
Meanwhile, be its feature with the main points that satisfy following (1) or (2).
(1) among the blade of cutting knife, apart from the nearest blade in the base of vessel, its most advanced and sophisticated radius of curvature (R) is less than 100 μ m under the state on the cover cap.
(2) among the blade of cutting knife, be during more than the 100 μ m and less than 145 μ m apart from the radius of curvature (R) at the tip of the nearest blade in the base of vessel under the state on the cover cap, have between the height (H) of the burr at the tip of said radius of curvature (R) and this blade
The relation of H (μ m) 〉=R (μ m)-95.
By as mentioned above within the specific limits, can access excellent cutting, and the problem of packed article longitudinal tear can be resolved also with the limitation in height of the radius of curvature at the tip of blade and burr.
When packed article during for the preservative film made by polyvinylidene chloride, above-mentioned number range is particularly effective.
Believe that those skilled in the art read after the following detailed description in conjunction with the accompanying drawings, just can understand above-mentioned and further feature and advantage of the present invention.
Description of drawings
Fig. 1 is a preservative film provided by the present invention block diagram with a form of implementation of container, the state on the cover cap time.
Fig. 2 is the approximate vertical view of blade of the centre portion of the cutting knife on the container of Fig. 1.
Fig. 3 is that the III-III of Fig. 2 is to analysing and observe skeleton diagram.
Fig. 4 is the plot of relation between reflection blade radius of curvature R, cut-out power and sensibility are estimated.
Fig. 5 is the plot of relation between reflection blade radius of curvature R, burr height H and sensibility are estimated.
The specific embodiment
Below, in conjunction with the accompanying drawings the preferred embodiment of the present invention is elaborated.
Fig. 1 is the drum preservative film block diagram that wire up as packed article, that used container 10 of the present invention that is used for being made by polyvinylidene chloride.This container 10 is made by whole ground paper, and is preferably made by the duricrust coated paper.As shown in Figure 1, container 10 is by the vessel 16 that is used for being contained on the cylindrical shape paper tube 12 preservative film 14 of reeling in the form of a roll, and constitutes with lid 18 that this vessel 16 is integral setting.In the time of on the cover cap, these container 10 integral body roughly are rectangular shape.
The top of vessel 16 is to open wide as being used for extracting the peristome of preservative film out.In addition, lid 18 is from upper limb 20 continuities of the rear wall of vessel 16.Therefore, lid 18 is rotating and the peristome of vessel 16 is covered and constitute with respect to vessel 16.
The sawtooth sword cutting knife 24 that the preservative film 14 that is used for extracting out cuts off is installed at the back side of the antetheca 22 of lid 18, and this cutting knife 24 is to install from the outstanding state of the front edge portion of antetheca 22 with its blade tip.The diagram form of implementation in, the front edge portion of lid portion front 22 is the base 26 that is arranged on more close vessel 16 is compared in the intermediate portion with two end portions locational convex or vee shape, with its shape correspondingly, employed cutting knife 24 also is in the shape of the letter V.When using the container 10 that adopts this vee shape cutting knife 24, can be as shown in Figure 1, a hand pinches the front end of preservative film 14, and the another hand is pinned the central part of lid portion front 22 with the thumb of this hand when holding container 10, make container 10 forwards, be that the arrow A direction is reversed.Like this, blade on the midway location of vee shape cutting knife 24 (towards the base 26 the most outstanding blade) 28 will penetrate preservative film 14, when pulling preservative film 14 under this attitude, otch will be expanded to about preservative film 14 along the left and right sides sawtooth sword 30 of cutting knife 24, and preservative film 14 just is cut off.
As shown in Figure 2, the shape of each blade 28,30 of cutting knife 24 approximately is in the shape of the letter V, and the angle of each blade 28,30 is advisable with 50～70 degree, and preferably in the scope of 55～65 degree.In addition, because cutting knife 24 is processed to form through stamping-out, thereby the tip of each blade 28,30 must be curved surface.
In addition, because the cutting knife manufacturing forms burr 32 as shown in Figure 3 sometimes with the upper die and lower die of pressure apparatus on the tip of each blade 28,30.For the blade 28 on blade 28,30, the particularly midway location, the height H of burr 32 is less than 50 μ m.
In this manual, the value of measured, the detection of the numerical value of the height H of the radius of curvature R at the tip of blade 28,30 and the burr 32 super degree of depth measuring shape of the VK-8500 type microscope that is to use キ-エ Application ス company to make.
At least with regard to the blade 28 of cutting knife 24, why its most advanced and sophisticated radius of curvature R is less than 145 μ m, if be owing to be that then blade 28 will be lost so-called sharpness more than the 145 μ m, produce with respect to preservative film 14 and slides, and is difficult to penetrate preservative film 14.
And why the height H of the burr 32 of blade 28 is less than 50 μ m, be minimum in order to make from the outstanding amount in the back side of cutting knife 24, thereby when preservative film 14 is extracted out from container 10, even preservative film 14 touches the back side of cutting knife 24, preservative film 14 also not longitudinally (extraction direction) tear.
Yet, the radius of curvature R at the tip of blade 28 less than 100 μ m situations under, if the height H of burr 32 is less than 50 μ m, even if then be not formed with burr 32 at all, also can access good result, but in the radius of curvature R at the tip of blade 28 more than 100 μ m and under less than the situation in the scope of 145 μ m, if be not formed with burr 32, then the experiment of being undertaken by the inventor is learnt, its cuttability is relatively poor.On the other hand, when being formed with burr 32, and its height H is big and when surpassing to a certain degree, even radius of curvature R is more than the 100 μ m, also can access excellent cutting.Trace it to its cause, can make description below.
Promptly, can think, though under radius of curvature R is situation more than the 100 μ m, can infer the big sharpness of having lost penetrable preservative film 14 of area owing to the tip surface 34 of blade 28, but when being formed with burr 32, because the tip of burr 32 is pricked in the preservative film 14, thereby can prevent that blade 28 from sliding on preservative film 14.That is to say,, blade 28 is pressed on the point of preservative film 14, penetrate preservative film 14 with less power as long as the tip of blade 28 does not relatively move on preservative film 14.
As if the physical relationship between the height H of determining radius of curvature R and burr 32 according to such viewpoint, then
H (μ m) 〉=R (μ m)-95 these relations are set up.
In addition, preferably the qualification with the above-mentioned numerical value of the height H of radius of curvature R and burr 32 is applied to all blades 28,30 of cutting knife 24, but also can only be applied to the blade 28 on the midway location.This be because, for vee shape cutting knife 24, the blade 28 on the midway location is starting points that preservative film 14 cuts off, as long as blade 28 penetrates preservative film 14, even about the situation of sword 30 more weaker than sword 28, cut off also can go at an easy rate.In addition because, when preservative film 14 was extracted out, hand was to be placed on shown in Figure 1 locationally, thereby can cause the blade of preservative film 14 longitudinal tears almost to be blade 28 on the midway location.
Under this structure, when cutting off preservative film 14, can preservative film 14 be cut off with minimum power with above-mentioned cutting-off method.In addition, because it is very little to cut off needed power, thereby needn't firmly control container 10,, can generation container 10 do not damage or bad phenomenon such as distortion even through long-term use yet.In addition, as previously mentioned, can also prevent preservative film 14 longitudinal tear when extracting out.
More than, have been described in detail with regard to the preferred embodiment of the present invention, but unquestionable, the present invention is not limited to above-mentioned form of implementation.For example, in above-mentioned form of implementation, the packed article of container is a preservative film, but also can be aluminium foil or paper etc.In addition, the shape of cutting knife also can be that centre portion is arc-shaped bend, outstanding shape towards the base 26 of container 10.
In addition, can think that for the linear cutting knife, the qualification of the numerical value of above-mentioned form of implementation also is an actv..
Embodiment
List below various containers, just cut off the test that the needed cut-out power of preservative film carries out and the result of sensibility test according to the present invention trial-production.
In this test, the multiple vee shape cutting knife that the height (H) of radius of curvature at the tip of the blade on the midway location that is prepared in advance (R) and burr is different.Each cutting knife is the iron cutting knife of thickness 170 μ m, modulus of elasticity 164GPa.In addition, each cutting knife is installed in close to sprout wings learns registered trade mark (RTM) that industrial makes, sells on the employed container of product of " NEW Network レ ラ Star プ " (being about the container that the duricrust coated paper of 31cm, wide 4.5cm, high 4.5cm is made), and the PVDC Fresh Keeping Film that is contained in this container is carried out actual cut-out.
For cut-out power, the RTC-1210A type universal tensile testing machine that uses エ-ア Application De デ イ company to make carries out tensile test, with measured tensile force as cut-out power.At this moment, as shown in Figure 3, angle θ between blade on the midway location of vee shape cutting knife and the preservative film keeps 60 degree, pushes down container at the tip of this blade apart from the position of the about 6mm of lid of container, with the draw speed of 1000mm/min preservative film is cut off.
Keep the reason of 60 degree angles to be, if the angle between blade and the preservative film is less than 60 degree, the value of then cutting off power diminishes, therefore, variation and even difference that cut-out power takes place along with the change of blade pointed shape diminish, and are difficult to clear the judge pointed shape of blade and the relation between the cut-out power.In addition, cutting off with the vee shape cutting knife under the mode of preservative film, blade on the midway location and the angle θ between the preservative film can not be 20 degree, normally to cut off greater than the angles of 20 degree.Have again, if blade on the midway location and the angle θ between the preservative film are greater than 60 degree, the value of then cutting off power will become big, the difference of the cut-out power that different blade pointed shape produce increases, but the tension force that acts on preservative film increases, and can take place preservative film phenomenon such as is pulled out from container and caused the discreteness of data to increase.Because above reason is decided to be 60 fixing degree with the angle θ between blade and the preservative film.
In addition, in sensibility test, the laboratory technician respectively carries out the cut-out of 3 preservative films to identical container, sensation such as the cut-out sense experienced this moment and needed power etc. are taken all factors into consideration, by well and bad two classes estimate.
The result of this cut-out power test and sensibility test is shown in following table 1.In this table 1, being evaluated as of " zero " expression sensibility test is good, and " * " expression is bad.In addition,, the relation between blade radius of curvature R, cut-out power and the sensibility evaluation is plotted among Fig. 4, the relation between blade radius of curvature R, burr height H and the sensibility evaluation is plotted among Fig. 5 according to the result of table 1.
Table 1
| The most advanced and sophisticated R (μ m) of blade | Burr height H (μ m) | Cut-out power (gf) | Sensation | The most advanced and sophisticated R (μ m) of blade | Burr height H (μ m) | Cut-out power (gf) | Sensation | |
| ????135 | ????0 | ????1050 | ????× | ????72 | ????18 | ????415 | ????○ | |
| ????125 | ????1 | ????1300 | ????× | ????70 | ????19 | ????485 | ????○ | |
| ????115 | ????1 | ????692 | ????× | ????65 | ????20 | ????380 | ????○ | |
| ????100 | ????2 | ????685 | ????× | ????82 | ????20 | ????525 | ????○ | |
| ????103 | ????2 | ????1250 | ????× | ????90 | ????20 | ????375 | ????○ | |
| ????103 | ????3 | ????1185 | ????× | ????90 | ????21 | ????364 | ????○ | |
| ????108 | ????3 | ????690 | ????× | ????102 | ????21 | ????360 | ????○ | |
| ????100 | ????4 | ????625 | ????× | ????70 | ????22 | ????455 | ????○ | |
| ????104 | ????4 | ????850 | ????× | ????70 | ????22 | ????300 | ????○ | |
| ????127 | ????12 | ????620 | ????× | ????80 | ????22 | ????376 | ????○ | |
| ????128 | ????12 | ????820 | ????× | ????82 | ????22 | ????330 | ????○ | |
| ????120 | ????14 | ????837 | ????× | ????101 | ????22 | ????320 | ????○ | |
| ????126 | ????15 | ????780 | ????× | ????110 | ????22 | ????301 | ????○ | |
| ????130 | ????15 | ????646 | ????× | ????112 | ????22 | ????303 | ????○ | |
| ????115 | ????16 | ????775 | ????× | ????80 | ????23 | ????540 | ????○ | |
| ????132 | ????16 | ????611 | ????× | ????90 | ????23 | ????430 | ????○ | |
| ????132 | ????17 | ????1075 | ????× | ????95 | ????23 | ????305 | ????○ | |
| ????126 | ????18 | ????861 | ????× | ????100 | ????23 | ????430 | ????○ | |
| ????122 | ????21 | ????728 | ????× | ????101 | ????23 | ????517 | ????○ | |
| ????37 | ????0 | ????378 | ????○ | ????96 | ????24 | ????367 | ????○ | |
| ????39 | ????0 | ????520 | ????○ | ????106 | ????24 | ????372 | ????○ | |
| ????40 | ????0 | ????450 | ????○ | ????112 | ????24 | ????555 | ????○ | |
| ????41 | ????0 | ????350 | ????○ | ????91 | ????25 | ????338 | ????○ | |
| ????85 | ????0 | ????535 | ????○ | ????74 | ????26 | ????340 | ????○ | |
| ????89 | ????0 | ????418 | ????○ | ????76 | ????26 | ????400 | ????○ | |
| ????95 | ????0 | ????426 | ????○ | ????85 | ????26 | ????417 | ????○ | |
| ????40 | ????3 | ????357 | ????○ | ????104 | ????26 | ????575 | ????○ | |
| ????39 | ????4 | ????366 | ????○ | ????110 | ????26 | ????417 | ????○ | |
| ????62 | ????5 | ????286 | ????○ | ????106 | ????27 | ????446 | ????○ | |
| ????62 | ????12 | ????350 | ????○ | ????65 | ????28 | ????440 | ????○ | |
| ????65 | ????13 | ????296 | ????○ | ????70 | ????28 | ????319 | ????○ | |
| ????66 | ????13 | ????286 | ????○ | ????80 | ????28 | ????410 | ????○ | |
| ????70 | ????13 | ????273 | ????○ | ????105 | ????28 | ????492 | ????○ | |
| ????72 | ????13 | ????253 | ????○ | ????104 | ????29 | ????562 | ????○ | |
| ????71 | ????15 | ????385 | ????○ | ????70 | ????30 | ????405 | ????○ | |
| ????72 | ????15 | ????332 | ????○ | ????91 | ????30 | ????382 | ????○ | |
| ????90 | ????15 | ????363 | ????○ | ????101 | ????30 | ????418 | ????○ | |
| ????95 | ????15 | ????490 | ????○ | ????106 | ????30 | ????361 | ????○ | |
| ????110 | ????16 | ????421 | ????○ | ????115 | ????31 | ????580 | ????○ | |
| ????60 | ????17 | ????309 | ????○ | ????70 | ????32 | ????328 | ????○ | |
| ????70 | ????17 | ????472 | ????○ | ????75 | ????32 | ????298 | ????○ | |
| ????90 | ????17 | ????376 | ????○ | ????117 | ????32 | ????435 | ????○ | |
| ????60 | ????18 | ????375 | ????○ | ????106 | ????33 | ????489 | ????○ | |
| ????65 | ????18 | ????280 | ????○ | ????65 | ????45 | ????323 | ????○ | |
By table 1, Fig. 4 and Fig. 5 as can be known, the radius of curvature at blade tip is during less than 100 μ m, and cut-out power always is shown as the less like this value of 600gf, also obtains good result in the sensibility evaluation.
In addition, as shown in Figure 4, radius of curvature is 100 μ m when above, and cut-out power surpasses 1200gf, and from bad evaluation result sensuously also occurring.And, in Fig. 5, confirm certain relation from the sensibility evaluation is good and bad, when good area and defective region being separated, can confirm foregoing with straight line
The relation of H (μ m) 〉=R (μ m)-95 is set up.
In addition, the 9 kinds of containers (embodiment 1～9) that are prepared in advance and constitute according to the present invention, and be ready for the 5 kinds of containers (Comparative Examples 1～5) that compare, carried out ranking test with regard to cuttability, container retentivity and longitudinal tear.
In the cuttability test, carried out and the same test of aforementioned cut-out power test, cut off the power measured value in should testing and be that the above person of 600gf is evaluated as cuttability is bad, be marked with in the table 2 below " * ", and it is good that measured value is evaluated as cuttability less than 600gf person, is marked with " zero " below in the table 2.
With 600gf is the occasion that benchmark is judged cuttability, can access and fwd sensibility test result unanimous on the whole.In addition, when preservative film is cut off, if cut off with the power more than the 600gf, the power that then not only pulls preservative film increases, and the power of pushing lid is also bigger, thereby will be with bigger power holding container, near the central part of container damage and distortion strengthen, both preservative films of measured length be used is difficult at last, therefore, with the value of the power of cut-out 600gf as the scale of judging cuttability.
And the test of container retentivity is carried out in view of following phenomenon, that is, when extracting preservative film out from container and cut off, if the cuttability of cutting knife is poor, then the power that container is applied is big thereby tank capacity damages or distortion.In this test, extract preservative film repeatedly from container out and cut off, each situation of cutting off back observation container, to deform etc. former thereby the preservative film mutilator can't to be judged to be the container retentivity to the end poor owing to container, be marked with in the table 2 below " * ", will be to the end still can carrying out mutilator, to be judged to be the container retentivity good, is marked with " zero " in table 2.
In the longitudinal tear test, make it to touch the blade on the midway location of cutting knife when extracting preservative film out from container, observe and whether can on preservative film, produce vertically (extraction direction) otch, the person that will produce the otch is judged to be has longitudinal tear, in table 2, be marked with " * ", non-incision produced the survivor be judged to be no longitudinal tear and be marked with " zero ".
Above-mentioned each ranking test the results are shown in table 2.
Table 2
| Radius of curvature R (μ m) | Burr height H (μ m) | Cuttability | The container retentivity | | |
| Embodiment | |||||
| 1 | ????40 | ????0 | ????○ | ????○ | ????○ |
| Embodiment 2 | ????60 | ????0 | ????○ | ????○ | ????○ |
| Embodiment 3 | ????85 | ????0 | ????○ | ????○ | ????○ |
| | ????95 | ????0 | ????○ | ????○ | ????○ |
| | ????100 | ????10 | ????○ | ????○ | ????○ |
| Embodiment 6 | ????100 | ????20 | ????○ | ????○ | ????○ |
| Embodiment 7 | ????100 | ????30 | ????○ | ????○ | ????○ |
| Embodiment 8 | ????120 | ????30 | ????○ | ????○ | ????○ |
| Embodiment 9 | ????65 | ????45 | ????○ | ????○ | ????○ |
| Comparative Examples 1 | ????100 | ????0 | ????× | ????× | ????○ |
| Comparative Examples 2 | ????120 | ????20 | ????× | ????× | ????○ |
| Comparative Examples 3 | ????135 | ????0 | ????× | ????× | ????○ |
| Comparative Examples 4 | ????150 | ????50 | ????○ | ????○ | ????× |
| Comparative Examples 5 | ????60 | ????50 | ????○ | ????○ | ????× |
By this table 2 as can be known, the radius of curvature at the tip of the blade on the midway location of cutting knife (R) is less than 145 μ m, burr height (H) occasion less than 50 μ m, and radius of curvature (R) is the above occasions of 100 μ m, H (μ m) 〉=R (μ m)-95 o'clock, cuttability and container retentivity are all good, also do not have longitudinal tear.
And as a comparison case 1～3, H (μ m) 〉=R (μ m)-95 these relations are not met, and in this case, cuttability and container retentivity are poor.In addition, by Comparative Examples 4 and 5 as can be known, the existence of burr makes only needs less cut-out power to get final product, and cuttability and container retentivity are good, but if burr is excessive, then can produce longitudinal tear, do not have practicality.
The possibility of utilizing on the industry
As mentioned above, according to container provided by the present invention, can be at an easy rate the drum packed articles such as preservative film be cut off, though Reusability, can the generation container distortion etc. yet bad phenomenon. And, with extractions such as preservative films the time, can avoid its longitudinal tear.
In addition, want the working pressure device when making the cutting knife of container, but this pressure apparatus through long-term the use after, its precision can be because wearing and tearing etc. be former thereby reduce, so need to be serviced. As the judgment standard on the opportunity of carrying out this maintenance, in the time of also can exceeding at the height of the radius of curvature at the tip of the blade of manufacturing and burr the scope that the present invention sets, make the judgement of safeguarding.
Claims (4)
1. container for packing, have, hold the vessel of wound film body packed article in the form of a roll, the lid of disjunctor setting rotationally on the rear wall of said vessel, and as the serration cutting knife in the front edge portion of antetheca that is installed in said lid, the intermediate portion compares with two end portions that the base that is arranged on more close said vessel is locational to be in the shape of the letter V or converx cutting knife under the state on the cover cap, it is characterized in that
Among the blade of said cutting knife, at least with regard to the state on the cover cap down with regard to the nearest blade in the base of said vessel, the radius of curvature at the tip of this blade (R) is more than the 100 μ m, less than 145 μ m, the height of the burr at the tip of this blade (H) is less than 50 μ m, and, have between the burr height (H) at the tip of said radius of curvature (R) and this blade
The relation of H (μ m) 〉=R (μ m)-95.
2. as the said container for packing of claim 1, it is characterized in that said packed article is the preservative film of being made by polyvinylidene chloride.
3. container for packing, have, hold the vessel of wound film body packed article in the form of a roll, the lid of disjunctor setting rotationally on the rear wall of said vessel, and as the serration cutting knife in the front edge portion of antetheca that is installed in said lid, the intermediate portion compares with two end portions that the base that is arranged on more close said vessel is locational to be in the shape of the letter V or converx cutting knife under the state on the cover cap, it is characterized in that
Among the blade of said cutting knife, at least with regard to the state on the cover cap down with regard to the nearest blade in the base of said vessel, the radius of curvature at the tip of this blade (R) is less than 100 μ m, the height of the burr at the tip of this blade (H) is less than 50 μ m.
4. as the said container for packing of claim 3, it is characterized in that said packed article is the preservative film of being made by polyvinylidene chloride.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP172870/2001 | 2001-06-07 | ||
| JP172870/01 | 2001-06-07 | ||
| JP2001172870A JP3996742B2 (en) | 2001-06-07 | 2001-06-07 | Packaging container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1476402A true CN1476402A (en) | 2004-02-18 |
| CN1236967C CN1236967C (en) | 2006-01-18 |
Family
ID=19014429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028031407A Expired - Lifetime CN1236967C (en) | 2001-06-07 | 2002-06-04 | Container for packaging |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3996742B2 (en) |
| KR (1) | KR100524522B1 (en) |
| CN (1) | CN1236967C (en) |
| TW (1) | TW536509B (en) |
| WO (1) | WO2002100729A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081669B (en) * | 2006-05-31 | 2010-12-08 | 株式会社吴羽 | Cutting edge for package container and package container having the same |
| CN101815652B (en) * | 2007-10-01 | 2011-12-07 | 株式会社吴羽 | Cutting edge for packaging container and packaging container having the same |
| CN109909360A (en) * | 2019-03-22 | 2019-06-21 | 东莞市瑞辉机械制造有限公司 | A kind of cutter with arcuation blade |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101190988B1 (en) | 2006-05-31 | 2012-10-12 | 교도 인사쯔 가부시키가이샤 | Cutting blade for packaging container and packaging container with the same |
| JP5235072B2 (en) * | 2007-11-27 | 2013-07-10 | 株式会社クレハ | Cutting blade for packaging container and packaging container having the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245349A (en) * | 1988-07-25 | 1990-02-15 | Kureha Chem Ind Co Ltd | Containing case for wrap film |
| JPH09142458A (en) * | 1995-11-24 | 1997-06-03 | Dainippon Printing Co Ltd | Housing body for roll-form long-sized article |
| US5839634A (en) * | 1997-01-27 | 1998-11-24 | The Procter & Gamble Co. | Blade for severing sheet materials |
-
2001
- 2001-06-07 JP JP2001172870A patent/JP3996742B2/en not_active Expired - Fee Related
-
2002
- 2002-06-04 KR KR10-2003-7007336A patent/KR100524522B1/en not_active IP Right Cessation
- 2002-06-04 CN CNB028031407A patent/CN1236967C/en not_active Expired - Lifetime
- 2002-06-04 WO PCT/JP2002/005503 patent/WO2002100729A1/en active IP Right Grant
- 2002-06-05 TW TW091112139A patent/TW536509B/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081669B (en) * | 2006-05-31 | 2010-12-08 | 株式会社吴羽 | Cutting edge for package container and package container having the same |
| CN101815652B (en) * | 2007-10-01 | 2011-12-07 | 株式会社吴羽 | Cutting edge for packaging container and packaging container having the same |
| CN109909360A (en) * | 2019-03-22 | 2019-06-21 | 东莞市瑞辉机械制造有限公司 | A kind of cutter with arcuation blade |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100524522B1 (en) | 2005-10-31 |
| JP3996742B2 (en) | 2007-10-24 |
| CN1236967C (en) | 2006-01-18 |
| KR20040007418A (en) | 2004-01-24 |
| WO2002100729A1 (en) | 2002-12-19 |
| JP2002362547A (en) | 2002-12-18 |
| TW536509B (en) | 2003-06-11 |
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