EP0413160A1 - Appareil pour la mise sous tension d'une bande autour d'un paquet - Google Patents

Appareil pour la mise sous tension d'une bande autour d'un paquet Download PDF

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Publication number
EP0413160A1
EP0413160A1 EP90113755A EP90113755A EP0413160A1 EP 0413160 A1 EP0413160 A1 EP 0413160A1 EP 90113755 A EP90113755 A EP 90113755A EP 90113755 A EP90113755 A EP 90113755A EP 0413160 A1 EP0413160 A1 EP 0413160A1
Authority
EP
European Patent Office
Prior art keywords
clamping
band
housing
arm
clamping arm
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.)
Granted
Application number
EP90113755A
Other languages
German (de)
English (en)
Other versions
EP0413160B1 (fr
Inventor
Josef Küng
Nikolaus Stamm
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.)
Orgapack Verwaltungs AG
Original Assignee
Orgapack AG
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 Orgapack AG filed Critical Orgapack AG
Publication of EP0413160A1 publication Critical patent/EP0413160A1/fr
Application granted granted Critical
Publication of EP0413160B1 publication Critical patent/EP0413160B1/fr
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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24—Securing ends of binding material
    • B65B13/34—Securing ends of binding material by applying separate securing members, e.g. deformable clips
    • B65B13/345—Hand tools

Definitions

  • the invention relates to a device for tensioning a metallic or non-metallic band to be strapped to a packaged product, in particular a plastic band to be connected with a seal, which device is provided with a clamping device in which the clamping of the band end required by means of a, with a clamping shoe provided clamping arm, which is pivotally mounted on an eccentric shaft mounted by means of a bearing shaft in the housing of the device and can be moved by the same from a tape insertion position for inserting the tape into the device in a clamping position for clamping the tape ends.
  • devices are used with which the band intended for strapping the packaged goods is first tensioned, whereupon the ends of the band are then connected in a tensioned state.
  • Seals or buckles are used to connect the strap ends, or the strap ends can also be connected by welding when using plastic straps.
  • the invention relates to a device of the latter type, in which the tape is first passed through a tensioning station and a cutting station after the tape has been manually folded around the packaged goods and the tape end has been inserted into the tape channel of the device. Then the belt is tensioned by moving the tensioning lever of the device back and forth. The band ends are then connected to the seal by means of the sealing pliers, by a buckle or by a welding device, whereupon the band is separated from the band supply roll in the cutting station. Then the device can also be removed from the strapping.
  • the tape can be tensioned, it is necessary to hold the tape end inserted in the tape channel.
  • a clamping station on the device, in which the strap end is held by a clamping arm.
  • the clamping arm is actuated by an eccentric shaft, by using one
  • the toggle action between the eccentric shaft and the clamping arm can generate a sufficiently large force to reliably hold the band firmly in place even when it is not yet tensioned. If the band is then tensioned with the aid of the tensioning lever, the tension exerted on the band increases the angle which is decisive for the clamping action, so that the band is reliably held in place.
  • this enlargement of the above-mentioned angle can lead to overstressing and damage to the device due to the associated difficulty in controlling the adherence to the forces which increase sharply due to small changes in angle.
  • this angle can be limited by means of a stop, the force for holding the band can then no longer be sufficient.
  • the clamping arm has at its free end a clamping lug extending in the direction of the band end, with the back of which the clamping arm can be moved in the clamping position to generate an increased band clamping force against an inclined support surface of the housing, which delimits a gap on the housing which narrows in the direction of the band end.
  • Fig. 1, 1 is a packaged item of any type, around which a band is placed by hand, the band end 3 of which is inserted into a device 4 for tensioning the band 2.
  • the band end 3 lies in a band channel 5, see also FIG. 4 and projects so far out of the band channel that it can be connected to the band 2 by means of a seal 6.
  • the tape 2 unwound from a tape supply (not shown) extends through a cutting station 8 and a tensioning station 10.
  • a clamping station 12 is arranged above the tape channel 5, with the aid of which the tape end 3 can be clamped to allow tensioning of the band 2.
  • the cutting station 8, the clamping station 10 and the clamping station 12 are installed in a housing 15 which is equipped with a handle part 14.
  • a tension lever 16 is also pivotally mounted, which can be moved back and forth manually to actuate a slide (not shown).
  • the clamping station 12 is shown in the rest position.
  • the rest position is to be understood as the position of the device 4 in which the clamping lever 16 is in the position shown in FIG. 1, in which there is no effect on the tensioning station 12.
  • FIGS. 2 and 3 there is a recess 17 in the housing 4, which is used to receive a clamping arm 18.
  • the clamping arm 18 is easily rotatably attached to an eccentric shaft 20 which is arranged eccentrically to a bearing shaft 21 and is fixedly connected to the same.
  • the bearing shaft 21 is rotatably mounted in the bearing bores 24, 25 by means of bearing parts 22, 23. Between the bearing parts 22, 23 there is a guide part 26 for a torsion spring 27, only shown schematically, and a fastening part 28 for a pawl 30, which is firmly connected to the fastening part 28, for example by a wedge connection 29.
  • the clamping lever 16 If the clamping lever 16 is depressed in the direction of the arrow 31, it presses with a cam 32 onto the pawl 30 and thereby tensions the torsion spring 27, which is supported at one end on the pawl 30 and at the other end on the housing 15.
  • the clamping arm 18 When the pawl 30 is depressed, the clamping arm 18 is raised on the one hand by the eccentric shaft 20, see FIG. 4, and on the other hand the Torsion spring 27 tensioned so that when the tensioning lever 16 is released, the pawl 30 is rotated by the action of the torsion spring 27 and thus the bearing shaft 21, as a result of which the clamping arm 18 is lowered into the rest position shown in FIG. 2.
  • the clamping arm 18 has a clamping lug 35 protruding in the direction of the band end 3, the back 34 of which is intended to be supported on an inclined support surface 36 arranged at the end of the recess 17.
  • the support surface 36 delimits a narrowing gap 37 of the band channel 5 and serves to guide and depress the clamping lug 35 so that the band end 3 can be reliably clamped to the supporting surface 36 by positive engagement of the clamping lug 35 even when the band 2 is tensioned.
  • a clamping shoe 40 is fastened in the region of the clamping lug 35 by means of a dovetail guide 41.
  • the underside of the clamping shoe 40 which can have a convexly curved shape, forms a support surface 42 which can be provided with grip projections, for example with scoring or serrations, in order to achieve the positive fit with the band end 3.
  • the band channel 5 is delimited on the side opposite the underside 39 of the clamping arm 18 by a wall 43 of a base plate 45, which forms part of the housing 15.
  • a part of the wall 43 is formed in the area of the clamping surface 42 as a clamping surface 46, which can have a concave shape to adapt to the convex shape of the clamping surface 42, which may also be provided with grip projections, for example, scoring or serrations.
  • the clamping arm 18 is shown in the clamping position, in which the clamping shoe 40 presses the band end 3 onto the clamping surface 46 of the wall 43, the clamping lug 35 being separated from that by the Torsion spring 27 eccentric drive is pressed into the gap 37 along the support surface 36.
  • the projecting clamping lug 35 causes the clamping point of the band end 3 to lie to the side of the axis of the eccentric shaft 20, so that the force with which the eccentric drive loaded by the torsion spring 27 forces the clamping arm 18 with the clamping shoe 40 at a relatively small angle 48 presses on the tape end 3.
  • the end of the band is reliably clamped despite the band tension exerted on the band in the direction of arrow 49. It is not necessary to press the clamping arm 18 onto the band end 3 in such a direction that the angle 48 is so large that uncontrollably large forces can occur due to the toggle action.
  • the tensioning lever 16 is mounted on a shaft (not shown) with a ratchet consisting of a gear wheel and pawl.
  • This shaft carries a tensioning drum 50, which represents the tensioning element of tensioning station 10.
  • the strapping of a packaged item 1 with a band 2 is carried out as follows:
  • the tensioning lever 16 is fully depressed in the direction of the arrow 31, as a result of which the pawl 30 rotates due to the cam 32 and the clamping arm 18 is thereby raised into the band insertion position shown in FIG. 4 as a result of the movement of the eccentric shaft 20.
  • the band channel 5 is continuously clear and the band end 3 can be inserted, the last end being advanced so far that it is covered by the seal 6.
  • the clamping lever 16 is released so that it is pivoted by the pawl 30 into the position shown in FIG. 1 because of the action of the torsion spring 27.
  • the clamping arm 18 has been lowered, the clamping lug 35 being pressed into the gap 37 and thus clamping the band end 3, see FIG. 5.
  • the band 2 is placed around the packaged goods 1 and through the cutting station 8 and the tensioning station 10 guided.
  • the tensioning lever 16 By moving the tensioning lever 16 back and forth, the band is placed around the tensioning drum 50 and thereby tensioned.
  • the seal 6 is placed directly next to the housing 15 on the band 2 and the band end 3 and the connection of the two bands is made by means of a pliers.
  • the tensioning lever 16 By depressing the tensioning lever 16 in the direction opposite the arrow 31, the cutting edge of the cutting station 8 is actuated and the band 2 is thereby separated from the band supply (not shown).
  • a leaf spring 53 is fastened on the back 34 of the clamping lug, which is located on the wall of the recess 17 supports and presses the clamping arm 18 in the position shown in Fig. 4.
  • This is limited by a further support surface 15 'of the housing 15, through which the clamping arm 18 does not have a large angle 48, ie an angle against 90 o to the wall 43 of the base plate 45 can take, which limits the maximum explosive forces that occur.
  • the force of this spring is only slight, so that the pressing of the clamping lug 35 into the gap 37 for exercising the clamping effect is not hindered.
  • the device 4 described is simple in its construction. Since the occurrence of uncontrollable stress peaks caused by the toggle lever action of the clamping arm 18 can be reliably avoided, the device can be easily built.
  • the clamping arm 18 is released from the clamping position, the clamping shoe 40 is moved in the direction 49 of the belt tension, as a result of which the positive locking of the clamping shoe 40 on the belt end 3 can be released more easily. Maintaining an acute clamping angle 48 enables a smaller lever stroke, so that the clamping lever 16 can be gripped more easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Package Frames And Binding Bands (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP90113755A 1989-08-15 1990-07-18 Appareil pour la mise sous tension d'une bande autour d'un paquet Expired - Lifetime EP0413160B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2979/89 1989-08-15
CH2979/89A CH679571A5 (fr) 1989-08-15 1989-08-15

Publications (2)

Publication Number Publication Date
EP0413160A1 true EP0413160A1 (fr) 1991-02-20
EP0413160B1 EP0413160B1 (fr) 1994-09-28

Family

ID=4245932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113755A Expired - Lifetime EP0413160B1 (fr) 1989-08-15 1990-07-18 Appareil pour la mise sous tension d'une bande autour d'un paquet

Country Status (6)

Country Link
US (1) US5117615A (fr)
EP (1) EP0413160B1 (fr)
JP (1) JPH03124512A (fr)
AT (1) ATE112220T1 (fr)
CH (1) CH679571A5 (fr)
DE (1) DE59007325D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104340442A (zh) * 2014-09-18 2015-02-11 郑州市奔月科技有限公司 大型包装箱包装线拆装用具

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE149443T1 (de) * 1994-01-24 1997-03-15 Orgapack Ag Spann- und verschliessvorrichtung zum umreifen eines gegenstandes mit einem kunststoffband
US5499664A (en) * 1994-03-07 1996-03-19 Illinois Tool Works Inc. Compressive cutting mechanism having plural-edged cutter
NZ332892A (en) * 1997-12-01 1999-05-28 Orgapack Gmbh Strapping apparatus comprises band supply unit, tensioning unit, closure unit, band guidance unit and pivotally mounted band clamping part and a self locking band clamp
CH692612A5 (de) * 1998-03-09 2002-08-30 Strapex Holding Ag Bandspann-Vorrichtung an einer Umreifungsmaschine.
EP0999133B1 (fr) * 1998-10-29 2003-04-16 Orgapack GmbH Appareil de cerclage
DE10026197A1 (de) * 2000-05-26 2001-12-06 Cyklop Gmbh Vorrichtung zum Spannen und Verschließen von Umreifungsbändern
US7497068B2 (en) * 2007-07-10 2009-03-03 Illinois Tool Works Inc. Two-piece strapping tool
EP2926645B1 (fr) 2014-03-31 2017-03-01 CNH Industrial Belgium nv Préhenseur à aiguille pour botteleuse agricole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB409168A (en) * 1932-07-14 1934-04-26 Signode Steel Strapping Co Improvements in or relating to devices for gripping metal straps and the like
FR1307502A (fr) * 1961-12-04 1962-10-26 Automatic Strapping Machines L Outil pour sangler des colis à l'aide de ruban souple

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586135A5 (fr) * 1974-06-24 1977-03-31 Strapex Ag
CH654245A5 (de) * 1981-09-22 1986-02-14 Fromm Ag Geraet zum anlegen eines bandes aus thermoplastischem kunststoff um einen gegenstand.
CH665604A5 (de) * 1985-01-23 1988-05-31 Strapex Ag Spann- und verschliessgeraet fuer kunststoffband.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB409168A (en) * 1932-07-14 1934-04-26 Signode Steel Strapping Co Improvements in or relating to devices for gripping metal straps and the like
FR1307502A (fr) * 1961-12-04 1962-10-26 Automatic Strapping Machines L Outil pour sangler des colis à l'aide de ruban souple

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104340442A (zh) * 2014-09-18 2015-02-11 郑州市奔月科技有限公司 大型包装箱包装线拆装用具

Also Published As

Publication number Publication date
ATE112220T1 (de) 1994-10-15
DE59007325D1 (de) 1994-11-03
CH679571A5 (fr) 1992-03-13
JPH03124512A (ja) 1991-05-28
EP0413160B1 (fr) 1994-09-28
US5117615A (en) 1992-06-02

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