EP0378550B1 - Film dispenser - Google Patents

Film dispenser Download PDF

Info

Publication number
EP0378550B1
EP0378550B1 EP88907158A EP88907158A EP0378550B1 EP 0378550 B1 EP0378550 B1 EP 0378550B1 EP 88907158 A EP88907158 A EP 88907158A EP 88907158 A EP88907158 A EP 88907158A EP 0378550 B1 EP0378550 B1 EP 0378550B1
Authority
EP
European Patent Office
Prior art keywords
roll
housing
brake roller
dispenser according
packaging medium
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.)
Expired - Lifetime
Application number
EP88907158A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0378550A1 (en
EP0378550A4 (en
Inventor
Peter James Johnstone
Kerry Neil Good
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
First Green Park Pty Ltd
Original Assignee
First Green Park Pty Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by First Green Park Pty Ltd filed Critical First Green Park Pty Ltd
Publication of EP0378550A1 publication Critical patent/EP0378550A1/en
Publication of EP0378550A4 publication Critical patent/EP0378550A4/en
Application granted granted Critical
Publication of EP0378550B1 publication Critical patent/EP0378550B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B67/00—Apparatus or devices facilitating manual packaging operations; Sack holders
    • B65B67/08—Wrapping of articles
    • B65B67/085—Wrapping of articles using hand-held dispensers for stretch films

Definitions

  • This invention relates to packaging and more particularly to a device to facilitate packaging articles with plastic wrapping material or synthetic plastic binding material.
  • stretch-film usually a synthetic plastics material such as linear polyethylene having inherent “cling” properties - has been used for the wrapping or packaging of many types of articles, such as pallet-borne articles including bricks, glass containers, packs of beverages such as beer, and of bulky and/or heavy products such as large rolls of newsprint, kraft paper and the like.
  • the stretch film binds the articles together as a single unit to facilitate their handling and transport.
  • Special machines have been developed to "stretch-wrap" such groups of articles.
  • a number of articles which may be separate, or individually packaged in cartons or boxes, may be packaged together with cellulose tape, bands, cord, lashing, metal or plastic strapping, or the like binding materials.
  • Australian Patent No. 511,642 discloses an automatic wrapping machine for wrapping layers of film web around a load. With this machine, a turntable holds the load in position and rotates relative to a supported roll of stretchable film. A brake is applied to the roll to place tension on the film web so as to stretch the web as it is applied to the rotating load.
  • This machine is designed for relatively large loads and is, consequently, relatively expensive to manufacture.
  • Australian Patent No. 519,456 discloses a process using a similar type of wrapping machine
  • Australian Patent No. 505,121 discloses another form of apparatus for wrapping a plurality of loads into a unitized load.
  • United States Patent Nos. 4,050,221, 4,271,657 and 4,432,185 all disclose other forms of stretch wrapping machines for wrapping a plurality of packages into a unit or wrapping palletized loads.
  • UK Patent No. 1 581 674 equivalent to German Patent No. 2 724 100, discloses an automatic wrapping machine wherein rubber friction rollers, associated with brake means, engage the surface of a film roll to apply tension thereto.
  • United States Patent No. 4,102,513 discloses a portable, hand-held dispenser for wrapping a roll of plastic stretch film about an object.
  • the dispenser has a reel assembly on which is mounted the roll of stretchable film.
  • Two handles are connected to the reel assembly for support thereof during use.
  • the support assembly includes a support shaft secured to a base plate and carrying a pair of opposed rotary end supports mounted for rotation on the shaft.
  • the supports engage into the ends of a roll of plastic stretch film.
  • At least one of the supports has a friction brake member operable to act as a brake and restrict rotation of the roll of stretch film on the support shaft.
  • One of the hand grips is operatively associated with the rotary end supports to increase or decrease the drag on the roll and to thereby vary the tension on the film during wrapping.
  • This dispenser requires two hands for operation thereof and requires the braking on the roll of film to be controlled by the operator during use.
  • European Patent No. 0 081 328 dated November 26, 1982 discloses another form of film dispenser in which the film passes around a pair of rollers which are mounted pivotally relative to the film roll. Tension applied to the film causes one of the rollers to be pressed against the surface of the roll of film, and the rollers are geared together so that one roller rotates at a greater speed than the other to thereby stretch the film longitudinally between the rollers.
  • the dispenser has a wheeled base for movement around a palleted load. While this dispenser is portable, it requires to be rolled along a floor around a palleted load, and a handle is provided at the upper end to facilitate such movement. Further, the stretch of the film is controlled by the difference between the peripheral speeds of the two rollers. As soon as tension on the film is diminished, the forces holding one of the rollers against the surface of the film roll also diminishes thus permitting the roll unrestricted movement and diminishing the stretch between the rollers.
  • US Patent No. 3 477 656 discloses a wall-mounted paper roll dispenser comprising a support frame, a spindle extending from the frame and supporting a roll of paper, and a pressure arm, spring biased into engagement with the roll of paper to provide a tensioning effect.
  • the portable film dispenser to be described can be operated with one hand and allows the user to stretch wrap an article or a group of articles and in which the stretch of the film applied to an article may be controlled as desired.
  • the film dispenser to be described is of relatively simple construction, of relatively few moving parts and which is relatively easy to use.
  • a dispenser for a roll of packaging medium comprising a housing to support the roll of packaging medium, a handle on the housing, a brake roller rotatably mounted on the housing, biasing means biasing the brake roller and the roll together so that the brake roller contacts the surface of the roll of packaging medium with a force proportional to the biasing force
  • the housing is formed with opposed guide channels to receive and rotationally support opposite ends of a support means carrying the roll of packaging medium, said biasing means biasing said roll against the brake roller, and the housing having a dispensing opening through which the packaging medium is dispensed, the opening being arranged to allow the packaging medium in use to pass between the nip of the roll and the brake roller and to engage with and pass around a part of the surface of the brake roller to be dispensed, with the brake roller acting to restrain withdrawal of the packaging medium from the roll thereof.
  • the guide channels in the housing comprise opposed channels formed on opposite sides of the housing and extending from said one end towards a rear end of the housing, the channels being adapted to receive ends of the support means to rotatably support the roll of packaging medium whilst allowing movement of the roll of packaging medium towards said one end under the influence of said biasing means.
  • the support means is either a mandrel or a core tube carrying the roll of medium.
  • the brake roller may include an integral braking means restricting free rotation of the brake roller.
  • the braking means may be adjustable and preferably includes an end flange which frictionally engages an end of the brake roller, and brake biasing means biasing the flange against that end.
  • brake biasing means biasing the flange against that end.
  • an end of the plastic stretch-wrap material on the roll which is mounted for rotation on the holder means, is applied to articles to be wrapped and is held in position while the device and articles are moved apart.
  • the movement causes the plastics material to stretch while simultaneously being wrapped about the article.
  • the tension in the film reaches a predetermined minimum, sufficient force is exerted to stretch the film and, at the same time, to overcome the effect of the braking means to draw film from the roll.
  • a linear polyethylene film can be stretched to several times its original length, depending upon its application. Because of inherent elasticity of some types of film, a stretched film may tend to return to its unstretched size or state thereby exerting a pressure on goods or articles wrapped in the film to firmly hold the goods together.
  • the dispenser may be designed as a wall-mounted stretch-film dispenser having the same features as outlined above.
  • the dispenser in one embodiment comprises a housing 62, moulded of synthetic plastic material and having a front section 63 with a dispensing opening therein and a rear section 64 pivoted together about an axis 66 between open and closed positions. In the open position the film roll is accessible. A clip 67 holds the two housing sections in the closed position as shown in Figure 1.
  • the housing is provided on opposite sides with a pair of guideways 68 which are able to receive the ends of a film roll core or a core tube 69 so as to be movable along the guideways 68 whilst permitting rotation of a roll 11 of the film material.
  • the rear housing section 64 is formed with an integral handle 71 while the front housing section 63 carries a braking roller 72.
  • the braking roller 72 comprises a spindle 73 mounted in the front section 63, bearing bushes 74 mounted on each end of the spindle 73 and a substantially rigid, PVC roller 76 rotatably mounted on the bearing bushes 74.
  • a pair of biasing springs 78 are mounted on a journal 79 coaxial with the pivot axis 66.
  • One leg 81, of each spring 78 is supported by a bar 82 in the rear housing section 64 while the other leg 83 of each biasing spring 78 bears against the core tube 69 carried in the guideways 68.
  • the biasing springs 78 thus bias the core tube 69, and hence the roll 11 towards the braking roller 72.
  • film material passes from the roll 11 between the nip created by the engagement of the roll 11 with the braking roller 72, to be applied to an article or a group of articles to be wrapped with the stretch film material.
  • the braking force applied by the braking roller 72 enables the film to be stretched as it is applied to the articles, the degree of stretch being dependent both on the biasing force and the rotational freedom of the braking roller 72.
  • the stretch film By passing the stretch film through the nip, the material is always firmly held on the roll 11 and a constant tension is able to be maintained during wrapping.
  • the biasing roller 72 may have an inbuilt brake mechanism which is adjustable to vary the rotational freedom of the braking roller 72, in use.
  • the structure illustrated in Figure 4 comprises a pair of flanges 86 and 87 adapted to engage the ends of the braking roller 72.
  • the flanges 86 and 87 are held together by a spring 88 and a screwed spindle 89 connected to a handle 91.
  • the tension in the spring 88 can be varied to thereby vary the pressure applied by the flanges 86 and 87 on the ends of the braking roller, thereby varying the rotational freedom thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Unwinding Webs (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Wire Bonding (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Detergent Compositions (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polarising Elements (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Closures For Containers (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Braking Arrangements (AREA)
EP88907158A 1987-07-29 1988-07-29 Film dispenser Expired - Lifetime EP0378550B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPI341587 1987-07-29
AU3415/87 1987-07-29
PCT/AU1988/000276 WO1989000968A1 (en) 1987-07-29 1988-07-29 Film dispenser

Publications (3)

Publication Number Publication Date
EP0378550A1 EP0378550A1 (en) 1990-07-25
EP0378550A4 EP0378550A4 (en) 1990-09-05
EP0378550B1 true EP0378550B1 (en) 1994-09-21

Family

ID=3772351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88907158A Expired - Lifetime EP0378550B1 (en) 1987-07-29 1988-07-29 Film dispenser

Country Status (17)

Country Link
EP (1) EP0378550B1 (da)
JP (1) JP2574024B2 (da)
KR (1) KR920010516B1 (da)
CN (1) CN1018068B (da)
AT (1) ATE111867T1 (da)
AU (1) AU605345B2 (da)
CA (1) CA1335584C (da)
CH (1) CH677479A5 (da)
DE (1) DE3851632T2 (da)
DK (1) DK171586B1 (da)
FI (1) FI95685C (da)
GB (1) GB2248601B (da)
MY (1) MY103339A (da)
NO (1) NO900376L (da)
NZ (1) NZ225572A (da)
RU (1) RU2070858C1 (da)
WO (1) WO1989000968A1 (da)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020072869A1 (en) * 2018-10-04 2020-04-09 Osborne Jr Charles Agnew Dispenser for rolled sheet materials
US11109722B2 (en) 2015-06-04 2021-09-07 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials
US11154166B2 (en) 2018-05-24 2021-10-26 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials
US12121187B2 (en) 2021-09-02 2024-10-22 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691917A1 (en) * 1993-04-09 1996-01-17 Minnesota Mining And Manufacturing Company Manual tape dispensing apparatus
DE19506924A1 (de) * 1995-02-28 1996-08-29 Siegbert Brutscher Abrollvorrichtung für Bahnmaterial
US5549255A (en) * 1995-04-10 1996-08-27 Huang; Harrison Silencer for tape dispenser
AU676117B1 (en) * 1995-09-22 1997-02-27 Itw Limited Film stretching mechanism
KR100202720B1 (ko) * 1996-12-30 1999-06-15 이종수 엘리베이터의 군관리 제어방법
US6648265B2 (en) * 2001-07-24 2003-11-18 David Goldberg Apparatus for regulating the dispensing of sheets from a roll of sheets
GB2453872B (en) * 2006-03-08 2011-11-09 Dan B Pool Masking machines
CN103439252B (zh) * 2013-09-09 2015-06-03 北京航空航天大学 一种折叠柔性复合材料应变能杆的装置
CN106424203B (zh) * 2016-11-03 2018-03-23 哈尔滨工大宏图橡塑科技有限公司 一种航空轮胎钢丝圈缠绕机储丝筒装置
CN106742299B (zh) * 2016-12-13 2022-08-26 浙江双林机械股份有限公司 一种可省料张紧装置
CN110803549A (zh) * 2019-11-12 2020-02-18 广州丽盈塑料有限公司 一种塑料卷材粉碎报废放卷进料机构及其进料方法
CN111232761B (zh) * 2020-03-18 2021-05-07 福建省宏港纺织科技有限公司 一种经编机用新型高效的绕线装置
DE102021111872B4 (de) 2021-05-06 2023-02-23 Steffen Schreck Abrollvorrichtung, insbesondere für Folien, und dazugehöriges Verfahren
CN114030667B (zh) * 2021-11-30 2023-04-07 邢台职业技术学院 一种卷绕包装机器人

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103009B (de) * 1956-10-12 1961-03-23 Holweg Const Mec Bremsvorrichtung zum Abwickeln von auf Spulen gewickelten Bahnen aus thermoplastischem Kunststoff, wie z. B. Polyaethylen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596428A (en) * 1949-07-16 1952-05-13 Donald W O'malley Tensioning device
US3477656A (en) * 1967-10-05 1969-11-11 Bert Muller Paper roll dispenser
US3602448A (en) * 1970-02-03 1971-08-31 Alcan Res & Dev Web-winding apparatus
DE2204854A1 (de) * 1972-02-02 1973-08-09 Helmut Kasper Aufwickelvorrichtung fuer baender
US4102513A (en) * 1977-09-14 1978-07-25 Twyman Guard Film wrapping dispenser
GB2055345B (en) * 1979-07-27 1983-04-07 Perfarap Ltd Hand-held device for wrapping
US4379019A (en) * 1980-09-08 1983-04-05 Pool Dan L Masking machine
JPS57137253A (en) * 1981-02-18 1982-08-24 Toshiba Corp Tape tension control device
EP0081328A3 (en) * 1981-12-07 1984-03-28 Kenneth Stephen Eddin Orpen Improvements in packaging film dispensers
JPS60204560A (ja) * 1984-03-30 1985-10-16 Sato :Kk 帯状部材の供給ブレ−キ装置
DE8419633U1 (de) * 1984-06-30 1984-09-27 Hüdig und Rocholz GmbH & Co KG, 5620 Velbert Abziehvorrichtung
JPS61238642A (ja) * 1985-04-15 1986-10-23 Hitachi Ltd シ−ト状材料供給装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103009B (de) * 1956-10-12 1961-03-23 Holweg Const Mec Bremsvorrichtung zum Abwickeln von auf Spulen gewickelten Bahnen aus thermoplastischem Kunststoff, wie z. B. Polyaethylen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11109722B2 (en) 2015-06-04 2021-09-07 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials
US11154166B2 (en) 2018-05-24 2021-10-26 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials
US11889955B2 (en) 2018-05-24 2024-02-06 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials
WO2020072869A1 (en) * 2018-10-04 2020-04-09 Osborne Jr Charles Agnew Dispenser for rolled sheet materials
US12121187B2 (en) 2021-09-02 2024-10-22 Charles Agnew Osborne, Jr. Dispenser for rolled sheet materials

Also Published As

Publication number Publication date
DK171586B1 (da) 1997-02-10
CH677479A5 (da) 1991-05-31
NZ225572A (en) 1991-09-25
DK21490A (da) 1990-03-28
JP2574024B2 (ja) 1997-01-22
EP0378550A1 (en) 1990-07-25
DE3851632T2 (de) 1995-03-02
CA1335584C (en) 1995-05-16
KR920010516B1 (ko) 1992-12-04
DE3851632D1 (de) 1994-10-27
GB9001390D0 (en) 1991-12-18
CN1018068B (zh) 1992-09-02
NO900376L (no) 1990-03-08
RU2070858C1 (ru) 1996-12-27
NO900376D0 (no) 1990-01-26
GB2248601A (en) 1992-04-15
WO1989000968A1 (en) 1989-02-09
AU2134588A (en) 1989-03-01
ATE111867T1 (de) 1994-10-15
CN1031060A (zh) 1989-02-15
GB2248601B (en) 1993-04-21
JPH02504381A (ja) 1990-12-13
MY103339A (en) 1993-05-29
AU605345B2 (en) 1991-01-10
KR890701462A (ko) 1989-12-20
EP0378550A4 (en) 1990-09-05
FI900456A0 (fi) 1990-01-29
FI95685B (fi) 1995-11-30
DK21490D0 (da) 1990-01-26
FI95685C (fi) 1996-03-11

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