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WO2007066194A2 - Dispositif de distribution - Google Patents

Dispositif de distribution Download PDF

Info

Publication number
WO2007066194A2
WO2007066194A2 PCT/IB2006/003463 IB2006003463W WO2007066194A2 WO 2007066194 A2 WO2007066194 A2 WO 2007066194A2 IB 2006003463 W IB2006003463 W IB 2006003463W WO 2007066194 A2 WO2007066194 A2 WO 2007066194A2
Authority
WO
WIPO (PCT)
Prior art keywords
central portion
base
roll
perimeter
axial cavity
Prior art date
Application number
PCT/IB2006/003463
Other languages
English (en)
Other versions
WO2007066194A3 (fr
Inventor
Franco Strapazzon
Original Assignee
Crocco S.P.A.
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 Crocco S.P.A. filed Critical Crocco S.P.A.
Publication of WO2007066194A2 publication Critical patent/WO2007066194A2/fr
Publication of WO2007066194A3 publication Critical patent/WO2007066194A3/fr

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/41—Portable or hand-held apparatus
    • B65H2402/412—Portable or hand-held apparatus details or the parts to be hold by the user, e.g. handle

Definitions

  • the invention relates to a dispenser device, suitable for unwinding rolls of plastic film and the like, particularly formed rolls without central core.
  • Forming rolls of plastic film is known, without these having a central supporting core.
  • automatic wrapping machines which are provided with one or more cylindrical spindles that act as temporary central core and around which the multiple layer films are wrapped so as to make the rolls.
  • an operator To operate manually, an operator must insert a stiff core inside the axial cavity so the stiff core is of such length that the two ends protrude from it; the operator then grasps the ends of this stiff core, attaches a free end of the film to a point of the goods and then walks around these to gradually wind the film, causing the roll to turn on the stiff core and wrap the goods.
  • the dispenser consists of a stiff core made up of a cylindrical body on the free and open ends of which two heads can be symmetrically fitted with diameters slightly lower than the outer diameter of the cylindrical body which substantially coincides with the inner diameter of a roll without central core.
  • the two heads and corresponding ends of the central body have portions that can be coupled together reciprocally so as to make the heads free to turn with respect to the central body and vice versa.
  • Both heads are provided with round end edges for axially retaining the roll which, when it is fitted on the dispenser, can turn integrally with the central body, with respect to the heads.
  • an operator attaches the free end of the film to the goods to be wrapped, then grasps the heads and by turning the dispenser around the goods, causes the roll and central body to turn with respect to the heads, unwinding the film.
  • a first drawback is represented by the high cost of making the dispenser.
  • Two specific and expensive dies are in fact needed to make the dispenser: a first die to make the central body shaped at the ends to receive the heads so they can turn, and a second die for making the heads.
  • a second drawback is that this is not very practical to use because every time the dispenser has to be inserted in the axial cavity of a roll, at least one of the heads must first be removed, and then the central body must be inserted in the axial cavity of the roll and then the removed head must be fitted back onto the central body again.
  • the technical aim of the invention is to improve the state of the art.
  • One object of the invention is to make a dispenser device with a very low cost.
  • a dispenser device comprising: a body of elongated shape having a central portion narrowed crosswise and comprised between a first end and a second end and which can be fitted coaxially in a removable way in an axial cavity of a roll, characterized in that said first end and second end have respective portions widened around the perimeter outwards with respect to said central portion, so that they can be fitted into/removed from said axial cavity and be restrained in this with the possibility of rotating with respect to it.
  • the dispenser device thus permits manually unwinding the rolls of film without central core by simply inserting it inside the axial cavities of these rolls and turning the rolls with respect to it.
  • Figure 1 is a longitudinal and interrupted section-view of a roll of plastic film in an axial cavity of which, without central support core, a dispenser device is fitted in a first form of embodiment
  • Figure 2 is an interrupted and enlarged scale view of a widened portion of an end of the dispenser device of Figure 1;
  • Figure 3 is a side and interrupted view of a second form of embodiment of a dispenser device in a position that precedes insertion into an axial cavity of a roll of plastic film without central support core;
  • Figure 4 is a side view of a third version of a dispenser device, inserted in an axial cavity of a roll of film indicated by broken lines.
  • a dispenser device which can be inserted inside axial cavities 2 of rolls 3, particularly rolls 3 of plastic films.
  • the dispenser device 1 comprises a straight central cylindrical portion 4 that extends between two opposite ends 5 and 6.
  • each widened portion comprises a respective first segment "Tl” and a second segment “T2" which have respective truncated-cone profiles 7 and 8 which are joined together to the respective bigger bases 9.
  • the first segment "Tl" with truncated-cone profile 7 has its own smaller base 10 joined to a concurrent end of the central portion 4 while the second segment "T2" with truncated-cone profile 8 has its own smaller base 11 turned towards the outside of the axial cavity 2.
  • a round external perimeter 12 is defined with a rounded pattern which is designed to be kept in contact with an inner surface of the axial cavity 2 when the dispenser device 1 is fitted in this.
  • the second segment "T2" with truncated-cone profile 8 has a final segment "T3" turned towards the outside and extending from the smaller base 11, so as to protrude slightly from this, as can be seen in Figure 1.
  • This final segment "T3" comprises a perimeter gripping edge 13, tapered towards the outside and a surrounding groove 14 delimited between the perimeter gripping edge 13 and the second smaller base 11.
  • the dispenser device 1 is preferably formed in a single piece and, consequently, the widened portions are rotatably integral with the central portion 4.
  • the dispenser device 1 axially has a second axial cavity 15 that makes it empty inside and which, besides allowing a substantial overall lightening, also allows users to easily grip it with the fingers of their hands.
  • the dispenser device 1 in a second form of embodiment, or second version, again comprises an end indicated by 5, the same as the corresponding end of the first embodiment, or first version, of the dispenser device 1, while the opposite end of this, indicated by 6' to distinguish it from the corresponding end 6, is shaped in a different way to this, and therefore is asymmetric, with respect to the end 5.
  • the end 6' in this second version, is preferably that which is suitable to be introduced first into the axial cavity 2 of a formed roll 3 devoid of the central supporting core.
  • the end 6' comprises a single truncated-cone profile, indicated by 8', which extends towards the outside like the opposite end 5 with a further final segment "T5" that comprises a surrounding groove 14' and a contiguous perimeter gripping edge 13', both substantially identical to the groove 14 and to the perimeter gripping edge 13 of the end 5 respectively.
  • the bigger base of the truncated-cone profile 8' connects up directly to a concurrent end of the central portion 4 by means of a rounded edge 7' which replaces, at end 6', the truncated-cone profile 7 of the end 5, and which has a round perimeter 12'.
  • a third embodiment of a dispenser device 1 is illustrated, and which presents an end 6' identical to the corresponding end 6' of the second embodiment, while an opposite end indicated by 5', is substantially the same as the corresponding end 5 of the first embodiment, except for the final segment "T3" of this.
  • the operation of the dispenser device 1 is the same for its three forms of embodiment and is the following: an operator fits the dispenser device 1 inside an axial cavity 2 of a roll 3 made up, for example, of plastic film and without the central support core.
  • the operator first introduces the end 5 or the end 6 while, according to the second and third embodiment, the end 6' is introduced first, because, as the drawings show, in the second embodiment, it is considerably shorter than the corresponding end 6 and in the third embodiment, fitting is prevented by the round stop collar 16.
  • the dispenser device 1 enters the axial cavity 2 in a slightly forced way because the round external perimeters 12, and 12' for the second embodiment, have substantially similar diameters and these are predetermined so as to be substantially coinciding with the standardised diameter of the inner surface of the axial cavity 2 of a formed roll 3.
  • the traction of the end flap of the film determines the rotation of the roll 3 on the dispenser device 1, with the inner wall of the axial cavity 2 that slides on the round external perimeters 12, and 12', which, for this reason, have rounded profiles with rounded patterns so as not to damage the internal surface itself during rotation, meaning so as not to tear the plastic film which, in this case, could crumple and prevent the rotation of roll 3 on the dispenser device 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Unwinding Webs (AREA)

Abstract

La présente invention concerne un dispositif de distribution qui comprend : un corps (1) de forme allongée possédant une partie centrale (4) rétrécissant transversalement située entre une première extrémité (5) et une seconde extrémité (6; 6') et qui peut être fixé coaxialement dans une cavité axiale (2) de rouleau (3) de manière à pouvoir se détacher, lesdites première (5) et seconde extrémités (6; 6') possédant respectivement des parties (7, 8, 7') élargies vers l'extérieur autour du périmètre par rapport à ladite partie centrale (4), ce qui leur permet d'être fixées dans/retirées de ladite cavité axiale (2) et d'y être retenues tout en conservant la possibilité de tourner par rapport à ladite cavité.
PCT/IB2006/003463 2005-12-07 2006-12-04 Dispositif de distribution WO2007066194A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI2005A000332 2005-12-07
ITVI20050332 ITVI20050332A1 (it) 2005-12-07 2005-12-07 Dispositivo erogatore

Publications (2)

Publication Number Publication Date
WO2007066194A2 true WO2007066194A2 (fr) 2007-06-14
WO2007066194A3 WO2007066194A3 (fr) 2007-10-04

Family

ID=38024156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/003463 WO2007066194A2 (fr) 2005-12-07 2006-12-04 Dispositif de distribution

Country Status (2)

Country Link
IT (1) ITVI20050332A1 (fr)
WO (1) WO2007066194A2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20090184A1 (it) * 2009-11-05 2011-05-06 Crocco S P A Dispositivo svolgitore
US9272870B2 (en) 2013-12-17 2016-03-01 Pratt Corrugated Holdings, Inc. Braking wrap dispenser
US9908656B2 (en) 2015-01-30 2018-03-06 Pratt Corrugated Holdings, Inc. Capped wrap dispenser
US9988171B2 (en) 2015-03-10 2018-06-05 Pratt Corrugated Holdings, Inc. Collared wrap dispenser
USD832899S1 (en) 2017-03-09 2018-11-06 Pratt Corrugated Holdings, Inc. Braking film dispenser with lobes
US10150639B2 (en) 2016-07-20 2018-12-11 Pratt Corrugated Holdings, Inc. Wrap dispenser with flat rim cap
US10287122B2 (en) 2017-03-09 2019-05-14 Pratt Corrugated Holdings, Inc. Braking film dispenser with lobes
US11203509B2 (en) 2019-11-15 2021-12-21 Pratt Corrugated Holdings, Inc. Wrap dispenser
USD983555S1 (en) 2019-11-15 2023-04-18 Pratt Corrugated Holdings, Inc. Wrap dispenser with ribbed core

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1098479A (en) * 1913-01-24 1914-06-02 Francis X Clark Jr Roll-paper core.
GB397294A (en) * 1932-07-25 1933-08-24 Frederick Hutchins Improvements in or relating to bobbin skewers and like bobbin carriers or supports
CH219111A (de) * 1940-11-01 1942-01-31 Feldmuehle A G Vorrichtung zum Zwirnen von Kunstseidecrêpe.
US2994488A (en) * 1959-11-18 1961-08-01 Yancy V Waddell Roll material dispenser
FR2584383B1 (fr) * 1985-07-03 1987-12-24 Sopalplast Sa Dispositif pour le deroulement des rouleaux de materiaux en pellicules
WO1991001262A1 (fr) * 1989-07-17 1991-02-07 Australian Thread Pty. Ltd. Ameliorations relatives aux dispositifs de support pour fils

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20090184A1 (it) * 2009-11-05 2011-05-06 Crocco S P A Dispositivo svolgitore
EP2319789A1 (fr) * 2009-11-05 2011-05-11 Crocco S.P.A. Dispositif de déroulement
US9272870B2 (en) 2013-12-17 2016-03-01 Pratt Corrugated Holdings, Inc. Braking wrap dispenser
US9688507B2 (en) 2013-12-17 2017-06-27 Pratt Corrugated Holdings, Inc. Braking wrap dispenser
US9950896B2 (en) 2013-12-17 2018-04-24 Pratt Corrugated Holdings, Inc. Braking wrap dispenser
US10280036B2 (en) 2013-12-17 2019-05-07 Pratt Corrugated Holdings, Inc. Braking wrap dispenser
US9908656B2 (en) 2015-01-30 2018-03-06 Pratt Corrugated Holdings, Inc. Capped wrap dispenser
US9988171B2 (en) 2015-03-10 2018-06-05 Pratt Corrugated Holdings, Inc. Collared wrap dispenser
US10494213B2 (en) 2016-07-20 2019-12-03 Pratt Corrugated Holdings, Inc. Wrap dispenser with flat rim cap
US10150639B2 (en) 2016-07-20 2018-12-11 Pratt Corrugated Holdings, Inc. Wrap dispenser with flat rim cap
US10287122B2 (en) 2017-03-09 2019-05-14 Pratt Corrugated Holdings, Inc. Braking film dispenser with lobes
USD832899S1 (en) 2017-03-09 2018-11-06 Pratt Corrugated Holdings, Inc. Braking film dispenser with lobes
US11040845B2 (en) 2017-03-09 2021-06-22 Pratt Corrugated Holdings, Inc. Braking film dispenser with lobes
US11203509B2 (en) 2019-11-15 2021-12-21 Pratt Corrugated Holdings, Inc. Wrap dispenser
US11584610B2 (en) 2019-11-15 2023-02-21 Pratt Corrugated Holdings, Inc. Rotating member for wrap dispenser
US11591180B2 (en) 2019-11-15 2023-02-28 Pratt Corrugated Holdings, Inc. Wrap dispenser
USD983555S1 (en) 2019-11-15 2023-04-18 Pratt Corrugated Holdings, Inc. Wrap dispenser with ribbed core
US11814261B2 (en) 2019-11-15 2023-11-14 Pratt Corrugated Holdings, Inc. Wrap dispenser
USD1079316S1 (en) 2019-11-15 2025-06-17 Pratt Corrugated Holdings, Inc. Wrap dispenser
USD1079317S1 (en) 2019-11-15 2025-06-17 Pratt Corrugated Holdings, Inc. Wrap dispenser with ribbed core

Also Published As

Publication number Publication date
ITVI20050332A1 (it) 2007-06-08
WO2007066194A3 (fr) 2007-10-04

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