[go: up one dir, main page]

WO1987001569A1 - Procede et dispositif de separation d'articles en bande - Google Patents

Procede et dispositif de separation d'articles en bande Download PDF

Info

Publication number
WO1987001569A1
WO1987001569A1 PCT/SE1986/000408 SE8600408W WO8701569A1 WO 1987001569 A1 WO1987001569 A1 WO 1987001569A1 SE 8600408 W SE8600408 W SE 8600408W WO 8701569 A1 WO8701569 A1 WO 8701569A1
Authority
WO
WIPO (PCT)
Prior art keywords
reel
web
stop
spring
engagement
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.)
Ceased
Application number
PCT/SE1986/000408
Other languages
English (en)
Inventor
Claes Hedlund
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1987001569A1 publication Critical patent/WO1987001569A1/fr
Priority to DK230987A priority Critical patent/DK230987D0/da
Priority to NO871970A priority patent/NO871970D0/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/123—Feeding flat bags connected to form a series or chain
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F9/00—Shop, bar, bank or like counters
    • A47F9/02—Paying counters
    • A47F9/04—Check-out counters, e.g. for self-service stores
    • A47F9/042—Shopping bags or carton-dispensing systems therefor
    • A47F2009/044—Shopping bags or carton-dispensing systems therefor dispensing from a roll

Definitions

  • the present invention relates to a method of separating from one another individual articles in a web, for example, plastic bags, these being rolled to form a reel and being defined in the web by means of perforations, openings in the web being provided in asso- ciation with the perforations.
  • the present invention also relates to an apparatus for carrying out the above-intimated method, this apparatus including support means intended for the reel and provided with shaft means about which the reel may be rotated.
  • Plastic bags united to form continuous webs which are rolled up to compact reels have been widely used in the packaging of different items such as foods.
  • the plastic bags making up the web have been separated by means of a transverse perforation which con- stitutes an indication of rupture when the outermost bag is to be separated from the rest of the web.
  • the object of the present invention is to obviate the above-considered drawbacks and to realise the method intimated by way of introduction, and the apparatus intended for carrying out the method, in such a manner that a simple, easy and reliable separation of the outermost article in the web can always be guaranteed, with ⁇ out the necessity that the apparatus intended herefor be either ex ⁇ pensive or complicated.
  • the method intimated by way of introduction is characterised in that the outermost article is withdrawn from the reel, that a force counter-directed to the direction of withdrawal is applied to the reel or the web, that the web, with the edge of that opening located most proximal the outermost article, is brought into engagement with a stop, and that the web, under the action of the force counter- directed to the direction of withdrawal, is caused to return towards the reel, the outermost article being, by means of the engagement with the stop, separated from the web.
  • the method is also characterised in that the stop is brought into en ⁇ gagement with the edge of the opening in a position which is asym ⁇ metric in relation to the longitudinal centre line of the web, the perforations being substantially transversely directed thereto.
  • the object of the present invention is also attained in respect of the apparatus, if this apparatus is characterised by a pivot de ⁇ vice which is connected to the support member and the reel, and which is disposed, on withdrawal of the web, to generate a force counter-directed to the direction of withdrawal, and by a stop which is disposed for engagement with the edge of that opening which is located most proximal the end of the web when the web has been with ⁇ drawn with this opening past the stop and subsequently permitted to return under the action of the pivot device.
  • a pivot de ⁇ vice which is connected to the support member and the reel, and which is disposed, on withdrawal of the web, to generate a force counter-directed to the direction of withdrawal
  • a stop which is disposed for engagement with the edge of that opening which is located most proximal the end of the web when the web has been with ⁇ drawn with this opening past the stop and subsequently permitted to return under the action of the pivot device.
  • the stop is placed as- ymmetically in relation to the longitudinal centre line of the web.
  • the stop is provided with two shanks making an angle with one another and forming therebetween a cuneiform nip closed towards the reel.
  • the pivot device that this consist of a spring which is interiorly disposed in the shaft member designed as a tube, the spring being, with its one end, non-rotationally connected to the support member and, with its other end, being non-rotationally connected to the reel.
  • Fig. 1 is a top plan view of the outer part of a web with continuous, united articles and a part of the web rolled up to a reel;
  • Fig. 2 shows a first embodiment of an apparatus for se ⁇ paration of the articles included in the web;
  • Fig. 3 illustrates a modified embodiment of the ap ⁇ paratus of Fig 2;
  • Fig. 4 schematically illustrates the cooperation between the apparatus of Fig. 2 and the web.
  • Fig. 1 shows a web which, in its left-hand end, is rolled up to form a reel 1 and, in its right-hand end, displays three different articles in the form of plastic bags 2 which, by means of perforations 3, are defined and demarcated one from the other.
  • the web 4, which forms the different articles 2 or plastic bags, is in the form of a hose, and the different plastic bags 2 are delimited from one another by means of transverse welds 5 and 6, respectively.
  • openings 7 are disposed in the central region of the web 4 in im ⁇ mediate association with the perforations 3. It will be further ap ⁇ parent that, on either side of the openings, there are formed tying or carrying sections 8. It should also be noted that that edge 9 of the openings 7 located most proximal the free end of the web lies in register with perforations 3.
  • the web 4 must be-rolled up in the manner as is apparent from Fig. 1, since, if the opposite rolling direction were selected (in other words such that the bottoms of the bags 2 were turned to be presented towards the outer end of the web), air would be forced into the bags on winding of the web 4 on the reel 1, such that it would be impossible to make the reel 1 compact.
  • Fig. 2 illustrates a first embodiment of an apparatus for sepa ⁇ ration of the plastic bags 2 making up the web.
  • the apparatus is provided with a frame post 10 which, with its bottom end, may be fixedly anchored in, for example, a fruit counter or the like in a supermarket.
  • Two support members or plates 11 projecting in opposite directions are fixedly mounted on the post 10. These plates are in the form of L-shaped bent sheet metal strips whose longitudinal shanks are vertical and are fixedly retained in the post.
  • the shorter shanks are substantially horizontal and serve, at a slight distance from the support post 10, the purpose of anchorage means for approximately vertical shaft members or tubular sleeves 12 on which the reels 1 are slid down from above so that they come to rest with their lower short end against the horizontal surfaces of the support plates.
  • the distance between the tubular sleeves 12 and the frame post 10 is selected such that reels of suitable diameter may be placed on the support plates without coming into contact with the vertical shank of the plate.
  • pivot devices in the form of tightly wound helical springs which, with their lower ends, are non-rotationally connected to the tubular sleeves 12 or the support members 11 and which, with their upper ends, protrude up above the tubular sleeves.
  • the springs are provided with protruding engagement members 13 which, in one advantageous embodiment, may be designed as a wire loop which lies in a longitudinal diametric plane of the spring and which may be passed into a slot in an end wall in the bobbin of the reel 1 or into a special make-up piece.
  • Anchorage of the bottom end of the spring in the support member 11 may be effected by means of a construction which is identical with the wire loop 13, i.e. there is provided a slot in the support member 11 which accommodates a cor ⁇ responding wire loop on the bottom end of the spring.
  • the subject matter of the present invention further comprises a stop 14 which is fixedly anchored with one end .in the frame post 10 or the support member 11 and, in the opposite end, is provided with two shanks 15 and 16 making an angle with one another.
  • the two shanks 15 and 16 form a wedge-shaped nip which is closed in a di ⁇ rection towards the tubular sleeve 12.
  • the stop 14 is placed asymmetrically in re ⁇ lation to the centre line of the web 4 or, more precisely, in such a manner as to engage with the upper end of the edge 9 of the opening 7.
  • a brake device 17 in the form of a spring of metal or plastic which is intended to abut under spring force against the periphery of the reel 1.
  • Fig. 4 illustrates the right-hand section of the apparatus ac ⁇ cording to Fig. 2, seen from the front and with a reel 1 mounted in place.
  • the spring disposed inter ⁇ iorly in the tubular sleeve 12 will retract the withdrawn web so that the outermost tying section 8 will arrive at a position in at the reel. If the web is released in this manner, the brake device 17 is employed to prevent the reel from continuing to rotate too far past its position of rest.
  • the web is possibly pivoted so that the edge 9 may be moved in between the two shanks 15 and 16, whereafter the web is quite simply re- leased or is permitted to return under the action of the energy stored in the pivot device or the spring disposed interiorly in the tubular sleeve 12.
  • the stop 14 will enter into engage ⁇ ment with the upper end of the edge 9, in other words immediately adjacent the lower edge of the perforation 3 at the upper tying sec- tion 8.
  • the movement in the returning web 4 will, in this instance, give rise to a point loading against the lower end of the per ⁇ foration 3 at the upper tying section 8, so that this perforation begins to rupture under the action of the force generated from the pivot device.
  • the edge 9 will, here, be fixedly clamped between the two shanks 15 and 16, such that the outermost bag is held captive in the stop 14.
  • the lower perfor- ation 3 will also be subjected to a point loading at its upper end, such that this perforation will also thereby be ruptured under the action of the force generated by the pivot device.
  • the outermost bag 2 is now completely disengaged from the web 4 and may possibly be retained in the stop 14 while the web is retracted onto the reel 1.
  • the stop .14 is bent in such a manner as to be located, for the greater part, behind the tubular sleeves 12 (seen from the direction of the user) and, conse ⁇ quently, also behind the reels 1. This entails that the web 4 is withdrawn obliquely forwardly towards the user, and that the web is subsequently moved either to the right or to the left into engage ⁇ ment with the stops 14.
  • Fig. 3 The embodiment illustrated in Fig. 3 is constructed, in prin ⁇ ciple, in the same manner as the embodiment according to Fig. 2, but it should here be observed that the stops 14 are placed in a dif ⁇ ferent manner and are also bent differently than is the case ac ⁇ cording to Fig. 2.
  • This embodiment can, thus, be considered as double-sided in which the webs are suitably withdrawn in the longit ⁇ udinal direction of the two shanks 18 of the stops 14.
  • the apparatus according to the present invention has been de ⁇ scribed above as placed on a frame post 10. According to the inven ⁇ tion, this is by no means necessary; the apparatus can instead be placed on a wall bracket of any suitable design.
  • the appar ⁇ atus be of the double track construction as illustrated in Figs. 2 and 3, but may, of course, just as well be of single track cons ⁇ truction.
  • the reel 1 may be provided with a make-up piece which, in its turn, engages with the upper end of the pivot device, in other words with the wire loop 13.
  • This make-up piece is in the form of an approximately cylindrical or very gently conical tube which, at its lower end - as intimated in Figs. 1 and 4 - is provided with a flange 19 which abuts against the upper upper face of the support member 11 and may be considered as con ⁇ stituting an axial bearing for the reel, such that the reel is ex ⁇ posed to an even, and more or less constant, friction.
  • the make-up piece is designed in such a manner as to be insertable with tight fit into the bobbin of the reel so that any anxiety con ⁇ cerning relative rotation between the reel and the make-up piece may thereby be discounted.
  • the make-up piece may, along its outer circumferential surface, be provided with a number of longitu ⁇ dinal ribs or projections which improve the non-rotational inter- connection between the reel 1 and the make-up piece.
  • a transverse wall which may possibly be downwardly displaced a dis ⁇ tance in the tubular sleeve of the make-up piece, but which, under any circumstances, is provided with a slot-like aperture for acco - modating the wire loop 13.
  • the make-up piece is interiorly dimensioned in such a manner as to be easily rotatable about the tubular sleeve 12, but substantially without play.
  • the reel 1 may be provided with a transverse wall directly anchored in its bobbin, and provided with the necessary slot-like aperture for cooperation with the wire loop 13.
  • a flap is also conceivable which is pivotal in the upper end of the support member 11 and which abuts against the upper end surface of the reel 1.
  • a flap may be given the function of a brake device and may also be employed to prevent the reel 1 from being raised to such a height - as a result of careless handling - that engagement with the wire loop 13 is lost.
  • a flap may be spring- -biased downwardly or, preferably, be fixedly lockable so that it cannot be raised further than is intended.
  • the flap may suitably be provided on its underside with resiliently yieldable brake means for abutment against the reel 1. It has been intimated above that one stop 14 should be provided for each reel 1. However, for reasons of convenience, it may be ap ⁇ intestinalte to provide two stops 14 for each reel, one on either side of the web 4, so that the user withdrawing the web from the reel, preferably towards his person, may choose between moving the edge 9 into engagement with the stop on the left or on the right side of the web.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Unwinding Webs (AREA)

Abstract

Procédé permettant de séparer l'un de l'autre des sacs en plastique formant une bande, chaque sac étant défini par des ouvertures et des perforations et tous les sacs étant enroulés de manière à former une bobine. Le procédé consiste à retirer le sac en s'opposant à l'action d'une force de mise en tension préalable et à engager dans un arrêt, de manière non symétrique, le bord de l'ouverture la plus proche de l'extrémité, le sac étant ensuite libéré de sorte que la bande revient vers la bobine sous l'action de la force de mise en tension préalable, le sac externe étant maintenu prisonnier est séparé le long de la perforation. Un dispositif permettant d'exécuter ce procédé comprend un support (11) muni d'un arbre vertical (12) pour la bobine. Un ressort (13) est relié au support (11) et à la bobine. Le support est pourvu d'un arrêt (14) écarté de l'arbre (12) et placé de manière asymétrique par rapport au centre de la bobine, l'arrêt étant pourvu de deux tiges (15, 16) formant un espace fermé en direction de la bobine. En outre, le support (11) est pourvu d'un ressort de freinage (17) qui est destiné à s'appuyer contre la périphérie de la bobine, en freinant sa rotation.
PCT/SE1986/000408 1985-09-18 1986-09-12 Procede et dispositif de separation d'articles en bande Ceased WO1987001569A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK230987A DK230987D0 (da) 1985-09-18 1987-05-06 Fremgangsmaade og anordning til fraskillelse af i en bane indgaaende genstande
NO871970A NO871970D0 (no) 1985-09-18 1987-05-13 Fremgangsmaate og anordning for fraskilling av enkeltgjenstander som inngaar i en bane.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8504324A SE8504324D0 (sv) 1985-09-18 1985-09-18 Sett och anordning for franskiljning av i en bana ingaende detaljer
SE8504324-8 1985-09-18

Publications (1)

Publication Number Publication Date
WO1987001569A1 true WO1987001569A1 (fr) 1987-03-26

Family

ID=20361438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1986/000408 Ceased WO1987001569A1 (fr) 1985-09-18 1986-09-12 Procede et dispositif de separation d'articles en bande

Country Status (3)

Country Link
DK (1) DK230987D0 (fr)
SE (1) SE8504324D0 (fr)
WO (1) WO1987001569A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1117342A (en) * 1914-04-08 1914-11-17 George f kearney Paper-roll holder.
SE356894B (fr) * 1969-12-08 1973-06-12 K Sengewald
US4314678A (en) * 1980-06-12 1982-02-09 Upchurch Lewis E Apparatus for rotatably supporting deformable tubular roller base means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1117342A (en) * 1914-04-08 1914-11-17 George f kearney Paper-roll holder.
SE356894B (fr) * 1969-12-08 1973-06-12 K Sengewald
US4314678A (en) * 1980-06-12 1982-02-09 Upchurch Lewis E Apparatus for rotatably supporting deformable tubular roller base means

Also Published As

Publication number Publication date
SE8504324D0 (sv) 1985-09-18
DK230987A (da) 1987-05-06
DK230987D0 (da) 1987-05-06

Similar Documents

Publication Publication Date Title
US5934535A (en) Bag dispensing system
US4289262A (en) Structure of dispenser for dispensing web-like material
AU669452B2 (en) Plastic bag dispenser and bags therefor
US10441116B2 (en) Automatic towel dispenser
US6945695B2 (en) Plastic bag and packaging method using same
US20020160896A1 (en) Roll mounted t-shirt style produce bag method for making and dispenser for same
US6460727B1 (en) Pop-up sheet product dispensing system
JP2625308B2 (ja) プラスチック袋ディスペンサおよびそれに使用されるプラスチック袋ロール
US5651487A (en) Paper towel removal accessory
US5207368A (en) Dispensing apparatus for plastic bags
US5921390A (en) Continuous roll of plastic bags
US5538170A (en) Tape tender
US9113760B2 (en) Low-material-indicating center pull dispenser
CA2148727A1 (fr) Distributeur d'essuie-tout servant a distribuer les feuilles de papier a partir du diametre interieur du rouleau
WO1997019013A1 (fr) Separateur et distributeur de sacs
US8393509B2 (en) Adapter for a bin
US5966854A (en) Roll-up information display
US6450380B1 (en) Plastic bag dispenser
US4863027A (en) Bag roll cutting device
WO1987001569A1 (fr) Procede et dispositif de separation d'articles en bande
US7124976B1 (en) Apparatus for dispensing sheet material from a roll
US6176028B1 (en) Roll-up information display
US2890821A (en) Dispensing carton for rolled material
US6321965B1 (en) Enhanced dispensing system for luggage tagging
JP2000511136A (ja) 物品を縛る装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): DE DE DK FI GB NO US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642