CN105819112B - Cutting edge and film roll accommodating container - Google Patents
Cutting edge and film roll accommodating container Download PDFInfo
- Publication number
- CN105819112B CN105819112B CN201610011776.2A CN201610011776A CN105819112B CN 105819112 B CN105819112 B CN 105819112B CN 201610011776 A CN201610011776 A CN 201610011776A CN 105819112 B CN105819112 B CN 105819112B
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- CN
- China
- Prior art keywords
- cutting edge
- film
- film roll
- protrusion
- accommodating container
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Classifications
-
- 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
-
- 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
- B65D2583/00—Containers or packages with special means for dispensing contents
- B65D2583/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
- B65D2583/082—Details relating to containers for dispensing thin flat articles in succession
- B65D2583/085—Details relating to the cutting means
Abstract
The present invention provides a kind of cutting edge and film roll accommodating container, can be while realizing the sufficient cuttability for the cutting edge being set on film roll accommodating container, it is ensured that without using the sufficient safety of family injury.Cutting edge (50) of the invention is arranged to strip along the length direction of film roll accommodating container (1), film (F) cutting for that will pull out from the film roll (R) of film roll accommodating container (1).Cutting edge (50) has protrusion (60) in the central portion of length direction, and protrusion (60) are prominent towards the direction of the film (F) in face of pulling out.Protrusion (60) has generally trapezoidal shape, which has flat straight line portion (70) in end side.The length (L1) of straight line portion (70) is turned off 1% or more and 5% or less of the length on the length direction of sword (50).Variation angle at the both ends of straight line portion (70) is 7 degree or less.
Description
Technical field
In particular, the present invention relates to cutting edge and film roll accommodating container, which is set to the film of storage film roll
It rolls up on accommodating container, the film cutting for will pull out from the film roll, the film roll is the food packaging guarantor of winding
Fresh film, aluminium foil, parchment paper etc. (hereinafter referred to as " film ") and constitute.
Background technique
In general, winding film constitutes film roll on core made of paper, which is incorporated in cuboid made of paper
In the film roll accommodating container of shape.Film roll accommodating container usually includes incorporating section, thereon surface opening, and stores film roll；
And cover, it is opened and closed upper surface opening, the end of cover is provided with cutting edge, the cutting edge from film roll for that will pull out
Film cutting.Cutting edge is formed as strip generally along the length direction of cover.
Since above-mentioned film is used by user's cutting every time, for the cutting edge of film roll accommodating container
For, need excellent cuttability and the safety without using family injury.About cuttability, there is the center for for example making cutting edge
Portion's technology outstanding (referring to patent document 1,2).
Patent document 1: Japanese Unexamined Patent Publication 2010-247873 bulletin
Patent document 2: Japanese Unexamined Patent Publication 5-246426 bulletin
However, only making the central portion of cutting edge prominent, it is unable to fully ensure safety.Also, by keeping the central portion prominent
Shape out is unable to get sufficient cuttability.
Summary of the invention
The present invention is to complete in view of the above problems, and the purpose of the present invention is be set to film roll accommodating container in realization
Cutting edge sufficient cuttability while, also assure the sufficient safety without using family injury.
It is that the present inventor constantly actively studies the result is that make it is following discovery so as to complete the present invention: make in cutting edge
Centre portion is prominent in generally trapezoidal shape, and the length of the straight line portion at the upper bottom of the trapezoidal shape is set as to the value of defined range, will be straight
The variation angle initialization at the both ends in line portion is defined value hereinafter, thus solving the above subject.That is, mode of the invention includes
The following contents.
(1) a kind of cutting edge, the cutting edge are arranged to strip along the length direction of film roll accommodating container, are used for
The film pulled out from the film roll of the film roll accommodating container is cut off, wherein the cutting edge is in the center of length direction
Portion has protrusion, and the protrusion is prominent towards the direction of the film towards the pull-out, and the protrusion has generally trapezoidal shape, should
Generally trapezoidal shape has flat straight line portion in end side, and the length of the straight line portion is turned off the length on the length direction of sword
1% or more and 5% of degree is hereinafter, the variation angle at the both ends of the straight line portion is 7 degree or less.
(2) cutting edge according to (1), the cutting edge have protrusion, the protrusion at the both ends of length direction
It is prominent towards the direction of the film towards the pull-out.
(3) a kind of film roll accommodating container, the cutting edge with any one of (1) or (2).
In accordance with the invention it is possible to realizing the same of the sufficient cuttability for the cutting edge being set on film roll accommodating container
When also assure sufficient safety without using family injury.
Detailed description of the invention
Fig. 1 is the perspective view for showing the outline of film roll storage device of the invention.
Fig. 2 is the expanded view of film roll storage device.
Fig. 3 is the explanatory diagram shown in the back mounted cutting edge for covering piece.
Fig. 4 is turned off the enlarged drawing of the protrusion in the center of sword.
Fig. 5 is the explanatory diagram for showing the shape of multiple teeth of cutting edge.
Fig. 6 is the explanatory diagram of the experiment of the cuttability of embodiment.
Label declaration
1: film roll accommodating container；50: cutting edge；60: protrusion；70: straight line portion；F: film；L1: the length of straight line portion.
Specific embodiment
The present invention is specifically described below.In addition, the following embodiments and the accompanying drawings is for illustrating illustration of the invention, originally
Invention is not only to be defined in the embodiment.Identical label is enclosed to identical element, the repetitive description thereof will be omitted.Also, scheme
In face, positional relationship shown in drawing is namely based on as long as being not specifically noted about positional relationship equal up and down.And
And the dimension scale of drawing is not limited to the ratio of diagram.
Fig. 1 is the perspective view for showing the outline of the film roll accommodating container 1 with cutting edge 50 of present embodiment, Fig. 2
It is the expanded view of the surface side of the film roll accommodating container 1 of Fig. 1.
Film roll accommodating container 1 shown in FIG. 1 includes incorporating section 10, thereon surface opening, and can store the thin of tubular
Film roll R；With cover 11, the upper surface opening of incorporating section 10 can be opened and closed.Incorporating section 10 for example includes foreboard 20；Bottom plate 21；
Back plate 22；The side plate 23 being connect with the both ends of the length direction of bottom plate 21；It is connect with the both ends of the length direction of back plate 22 auxiliary
Help side plate 24；And the auxiliary side plates 25 being connect with the both ends of foreboard 20.It is connected in the upper edge of foreboard 20 to foreboard 20
The edge tabs 26 that back side is turned back, is connected with guide plate 27 in the two sides of the length direction of edge tabs 26.In addition, edge tabs 26 can
Can also not have to have, the back side of foreboard 20 can also be bonded in.Also, it is provided with and is fixed temporarily for example on the surface of foreboard 20
The end of film F is fixed temporarily portion 28.
Cover 11 includes cover board 30, from the upper end genesis of the back plate 22 of incorporating section 10 along the upper of covering incorporating section 10
The direction of surface opening is extended；Piece 31 is covered, 20 side of foreboard from cover board 30 to incorporating section 10 is extended；Side plate
32, it is connect with the both ends of the length direction of cover board 30；Auxiliary side plates 33 connect with the both ends for the length direction for covering piece 31
It connects；And Kaifeng piece 34, it is connect with the end for covering piece 31.
As shown in Fig. 2, Kaifeng piece 34 is formed as band-like along the length direction of film roll accommodating container 1.The piece 34 that breaks a seal passes through
It is connect by cutting line 35 with the end edge for covering piece 31.Before Kaifeng, Kaifeng piece 34 is bonded in the surface lower portions of foreboard 20.Cover 11
Closed by the Kaifeng piece 34, by along cut line 35 cut off Kaifeng piece 34, cover 11 can be broken a seal.
As shown in figures 1 and 3, being provided in the back side for the terminal part for covering piece 31 will draw from the film roll R of incorporating section 10
The cutting edge 50 of film F cutting out.Cutting edge 50 is for example mounted on by bonding agent and is covered on piece 31.Cutting edge 50 is formed as
Such as there is the rectangle of the strip of saw tooth shape shape on one side, and be configured to (cover piece throughout film roll accommodating container 1
31) two side ends of length direction.Before cutting off Kaifeng piece 34, which is opened the covering of piece 34, is cutting off Kaifeng
When piece 34, which exposes in the end edge for covering piece 31.The material of cutting edge 50 uses metal material such as tinplate.
Cutting edge 50 has protrusion 60 in the central portion 50a of length direction, and the protrusion 60 is towards in face of pulled out film F
Direction is prominent.As shown in figure 4, protrusion 60 has rough trapezoidal shape, which has flat in end side
Straight line portion 70.1% or more and 5% of length (overall with) D of the length L1 of straight line portion 70 on the length direction of cutting edge 50
Hereinafter, preferably 1% or more and 4% hereinafter, more preferably 1.5% or more and 3.5% or less.In addition, by by straight line portion 70
Length L1 be set as 1% or more, not vulnerability when contact end can be improved significantly, by by the length of straight line portion 70
Degree L1 is set as 1.5% or more, and not vulnerability can be made to improve to the degree same with the cutting edge that does not have protrusion 60.Separately
On the one hand, if the length L1 of straight line portion 70 be 5% hereinafter, if can with lighter power realize center starting point cut off, if 4% with
Under, then can realize that starting point cut off in center with lighter power, if 3.5% hereinafter, then can with do not have straight line portion 70
The power of situation equal extent realizes that starting point cut off in center.In addition, the odontoid of cutting edge 50 as shown in Fig. 5 (a)~(d) simultaneously
It is not particularly limited, is straight line portion 70 by the part that the end at tooth peak line connected to each other is straight line, the length is L1.
The both ends of protrusion 60 and the part of the cutting edge 50 on the outside of it are smoothly connected in arc-shaped.Also, straight line portion 70
The part (rake) at both ends and the protrusion 60 on the outside of it is smoothly connected in arc-shaped.Variation angle [alpha] at the both ends of protrusion 60
1 and straight line portion 70 both ends at variation angle [alpha] 2 be set to 7 degree or less.The maximum of the end edge of the flank of cutting edge 50 becomes
Momentum H is 10mm hereinafter, preferably 5mm or less.Maximum variation H is smaller, it will be able to will cover the width of piece 31 and the piece 34 that breaks a seal
Degree maintains smaller.Maximum variation H is determined by the acquisition mode of variation angle [alpha] 1 and α 2.In order to reduce maximum variation H,
Straight line portion can be suitably set in the part other than central portion.In addition, the both ends of protrusion 60 and the both ends of straight line portion 70 do not have
Necessity one is set to arc-shaped, or angle.
As shown in figure 3, cutting edge 50 also has protrusion 80 in the both ends 50b of length direction, the protrusion 80 is towards in face of institute
The direction of the film F of pull-out is prominent.Therefore, cutting edge 50 is respectively provided with protrusion 60,80 in central portion 50a and both ends 50b,
There is substantially M word shape on the whole.
The film F of such as PVDC system is wound on film roll R.Film roll R is incorporated in film roll accommodating container 1
And constitute food packaging device.
User comes in use, for example first being stored film roll with singlehanded taking out film F from film roll accommodating container 1
Container 1 remain it is approximate horizontal, gently close cover 11 in the state of, using another hand out of film roll accommodating container 1
Film roll R pull out desired length film F.Then, the film F pulled out is stretched upward, utilizes the cover of cover 11
The cutting edge 50 of the end of piece 31 cuts off film F.At this point, film F is cut off with the protrusion 60 in the center of cutting edge 50 for starting point,
And it is cut off with the protrusion of the end of cutting edge 50 80 for starting point.Remaining film F is attached to the portion of being fixed temporarily 28 after cutting
It is upper and be temporarily fixed, in use next time, it is stretched be attached to the film F being fixed temporarily in portion 28 come using.
According to the present embodiment, cutting edge 50 has the protrusion 60 of generally trapezoidal shape in the central portion 50a of length direction,
The length L1 of the straight line portion 70 of the protrusion 60 is turned off 1% or more and 5% of the length D on the length direction of sword 50 hereinafter, straight
Variation angle [alpha] 2 at the both ends in line portion 70 is 7 degree or less.In this case, by making protrusion 60 be shaped generally as trapezoidal shape
Shape can be improved the not vulnerability in contact end, on this basis, by setting the length L1 of trapezoidal straight line portion 70
It is set to shorter 1% or more and 5% hereinafter, can realize that the film of central starting point is cut off by lighter power.In particular, straight line
Variation angle [alpha] 2 at the both ends in portion 70 is 7 degree hereinafter, the protrusion 60 in the center of cutting edge 50 is gentle and smooth curve.?
When cutting off film from one end of cutting edge 50, it is believed that: pass through the moment at the both ends of straight line portion 70, load in cut-off parts
(load) can rise, and still, be inhibited by the way that the both ends of straight line portion 70 are set as 7 degree hereinafter, can rise load at this time
Must be smaller, to obtain good cuttability.Therefore, it can be also assured while realizing the sufficient cuttability of cutting edge 50
Without using the sufficient safety of family injury.Also, since the protrusion of cutting edge 50 60 is gentle curve, thus, for example
At the both ends of straight line portion 70, stress is not concentrated in 1 tooth peak, is able to suppress the abrasion at the tooth peak as caused by reusing.
In addition, about the sufficient cuttability for realizing cutting edge 50 and ensuring safety, verified in the later-described embodiments.
Also, cutting edge 50 has protrusion 80 at the both ends of length direction, and the protrusion 80 is towards in face of pulled out film F
Direction it is prominent.Thereby, it is possible to improve the cuttability of the film F when being starting point cut off film F with the end of cutting edge 50.
More than, the preferred embodiment of the present invention is described referring to attached drawing, however the present invention does not limit the example.Very
Obviously, for industry personnels, in the scope of the thought documented by the scope of the claims, alternatively it is conceivable to various changes
Example or fixed case, these modifications or fixed case also belong to technical scope of the invention certainly.
Cutting edge 50 in above embodiment is formed with saw sword on one side, but can be also formed with saw in another side
Sword.Also, the shape of the tooth of cutting edge 50 is not particularly limited.Also, above-mentioned cutting edge 50 has substantially M word on the whole
Shape, as long as however central portion have trapezoidal shape protrusion 60, be just also possible to the cutting edge with other shapes.Such as
The both ends of cutting edge 50 be also possible to it is flat, can also be formed as relative to film F retreat.
The shape of film roll accommodating container 1 in above embodiment, construction are also not necessarily limited to this.Also, wound on thin
The type of film F in film roll R is also not necessarily limited to the film of PVDC system, is also possible to such as PO system, PVC system.
[embodiment]
Hereinafter, cuttability and the safety of verifying cutting edge 50.
(cuttability)
As shown in fig. 6, carried out center starting point cut off experiment and starting point cut off for end experiment, starting point cut off in the center in fact
In testing, with the central portion (position that protrusion 60 is located at) of cutting edge for starting point cut off film, and find out required for the cutting
Load with the end of the cutting edge film that is that starting point cut off, and is found out required for the cutting in starting point cut off for end experiment
Maximum load.The former center starting point cut off experiment be to tilt film roll accommodating container not relative to the draw direction of film
(the identical direction of width direction for making the draw direction and film roll accommodating container of film) Lai Jinhang's.In the end of the latter
In experiment that starting point cut off, so that film roll accommodating container is tilted 25 degree relative to the draw direction of film (makes the draw direction of film
Angle with the width direction of film roll accommodating container is 25 degree) Lai Jinhang.
(cuttability evaluation method)
(1) preservative film (Saran Wrap) gift box will be attached to by the cutting edge of tinplate made by wire cutting
(registered trademark, Asahi Chemical Industry's household supplies (strain) corporation), is put into film roll, by autoplotter with 1m/min's in box
Speed extracts film and records the load from cutting start and ending, which has carried out 5 times in total.Load when cutting is started
5 average value be set as load when the cutting of the cutting edge starts.For center, starting point cut off, if load when cutting starts
It is 3.5N hereinafter, to be then considered as cuttability good.
(2) it is evaluated by using the emulation of FInite Element.Center starting point cut off be with 10m/min extract film,
It is to extract film with 100m/min that starting point cut off for end, has recorded the load from cutting start and ending.Central starting point is cut
It is disconnected, if cut off start when load be 5N hereinafter, if to be considered as cuttability good.For end, starting point cut off, if load when center passes through
Lotus is 1N hereinafter, to be then considered as cuttability good.
Center starting point cut off experiment in, the length in the straight line portion 70 of the protrusion of trapezoidal shape 60 is turned off the length side of sword
In 5% situation below of upward length (overall with), cutting maximum load is 3.5N hereinafter, being more than the length side of cutting edge
In the case where the 5% of upward length, cutting maximum load is more than 3.5N.By starting point cut off in center experiment it is found that will
The length of the straight line portion 70 of protrusion 60 is set as in 5% situation below of the length on the length direction of cutting edge, and is more than
Length on the length direction of cutting edge 5% the case where compare, high cuttability can be obtained.
As shown in table 3, if be provided with towards the direction protrusion outstanding for facing film, it can be realized central starting point and cut
It is disconnected, if changing angle [alpha] 1 is 3 degree or more, can in 5N following implemented center, starting point cut off, be preferred.If changing angle
α 2 is 7 degree or more, then when starting point cut off for progress end, load rising when can will pass through the end of straight line portion 70 is suppressed to
1N or less.
(safety)
The cutting edge for keeping the various shapes such as the length of straight line portion different is upward, and the film roll with 300g weight is placed on
In the central spud of the cutting edge, slide film roll from box Inside To Outside direction, counting is damaged thin on film roll surface layer
The number of film.The process is total to be carried out 10 times, is damaged number for its average value as the film of the cutting edge.For no protrusion
Linear cutting edge, mean sheet be damaged number be 6, therefore, if 6 or less, then it is assumed that vulnerability is not good
Alright.
In this experiment it is found that it is 8 that the film in the case that the length of the straight line portion of protrusion is 0mm, which is damaged number, with
This is opposite, and when 1% or more straight line portion of the length on the length direction that cutting edge is arranged on protrusion, discovery film is impaired
Number is substantially reduced, and when 1.5% or more of the length on the length direction that straight line portion is set as cutting edge, can reduce
Same 6 with the cutting edge of not protrusion.Also, as shown in table 2, even if the antistaling film cutting edge different in overall with
In, it has been found that identical tendency.
[table 1]
※ has used (1) in cuttability evaluation method
[table 2]
※ has used (1) in cuttability evaluation method
[table 3]
※ has used (2) in cuttability evaluation method
The present invention is useful in the following cases: realizing the sufficient of the cutting edge for being set to film roll accommodating container
Ensure the sufficient safety without using family injury while cuttability.
Claims (3)
1. a kind of cutting edge, the cutting edge is arranged to strip along the length direction of film roll accommodating container, for will be from
The film cutting that the film roll of the film roll accommodating container pulls out, wherein
The cutting edge is provided integrally with protrusion in the central portion of length direction, film of the protrusion court towards the pull-out
Direction is prominent,
The protrusion has generally trapezoidal shape, which has flat straight line portion in front end side,
The length of the straight line portion be turned off 1% or more of the length on the length direction of sword and 5% hereinafter,
Variation angle at the both ends of the straight line portion be 7 degree hereinafter,
The protrusion in the center of the cutting edge is gentle and smooth curve.
2. cutting edge according to claim 1, wherein the cutting edge has at the both ends of length direction towards towards institute
State the direction protrusion outstanding of the film of pull-out.
3. a kind of film roll accommodating container, with cutting edge described in claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015013509A JP6478657B2 (en) | 2015-01-27 | 2015-01-27 | Cutting blade and film roll storage container |
| JP2015-013509 | 2015-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105819112A CN105819112A (en) | 2016-08-03 |
| CN105819112B true CN105819112B (en) | 2019-07-19 |
Family
ID=56558801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610011776.2A Active CN105819112B (en) | 2015-01-27 | 2016-01-08 | Cutting edge and film roll accommodating container |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6478657B2 (en) |
| CN (1) | CN105819112B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7446063B2 (en) | 2019-06-17 | 2024-03-08 | 旭化成株式会社 | Rolled body storage box |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05310245A (en) * | 1992-05-08 | 1993-11-22 | Asahi Chem Ind Co Ltd | Cutting tool made of paper board to cut wrap film |
| JP2542998B2 (en) * | 1993-01-25 | 1996-10-09 | 呉羽化学工業株式会社 | Wrap film storage case |
| US5511663A (en) * | 1993-12-15 | 1996-04-30 | Kureha Kagaku Kogyo Kabushiki Kaisha | Packaging case having improved sidewall structure |
| US6682808B2 (en) * | 2001-04-20 | 2004-01-27 | Asahi Kasei Kabushiki Kaisha | Crosslinked laminated wrap film and dispenser box therefor |
| JP2006298408A (en) * | 2005-04-19 | 2006-11-02 | Asahi Sekkei Kogyo:Kk | Box structure for food packaging wrap film |
| JP5090778B2 (en) * | 2006-05-31 | 2012-12-05 | 株式会社クレハ | Cutting blade for packaging container and packaging container having the same |
| JP5374036B2 (en) * | 2007-11-29 | 2013-12-25 | 株式会社クレハ | Cutting blade for packaging container and packaging container |
| JP5342853B2 (en) * | 2008-11-17 | 2013-11-13 | 株式会社クレハ | Cutting blade for packaging container, packaging container and package supply device |
| JP5572331B2 (en) * | 2009-04-17 | 2014-08-13 | 旭化成ケミカルズ株式会社 | Wrapping film storage box |
| CN203794306U (en) * | 2014-04-21 | 2014-08-27 | 向自越 | Cutter of fresh-keeping film |
-
2015
- 2015-01-27 JP JP2015013509A patent/JP6478657B2/en active Active
-
2016
- 2016-01-08 CN CN201610011776.2A patent/CN105819112B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105819112A (en) | 2016-08-03 |
| JP2016137913A (en) | 2016-08-04 |
| JP6478657B2 (en) | 2019-03-06 |
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