EP0413160B1 - Gerät zum Spannen eines Bandes um ein Packgut - Google Patents

Gerät zum Spannen eines Bandes um ein Packgut Download PDF

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Publication number
EP0413160B1
EP0413160B1 EP90113755A EP90113755A EP0413160B1 EP 0413160 B1 EP0413160 B1 EP 0413160B1 EP 90113755 A EP90113755 A EP 90113755A EP 90113755 A EP90113755 A EP 90113755A EP 0413160 B1 EP0413160 B1 EP 0413160B1
Authority
EP
European Patent Office
Prior art keywords
clamping
strip
housing
pressure member
face
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
EP90113755A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0413160A1 (de
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/de
Application granted granted Critical
Publication of EP0413160B1 publication Critical patent/EP0413160B1/de
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 metal or non-metal band encompassing a packaged product and to be connected to a seal, the device comprising a housing provided with a band channel and a base plate designed as a band support for a band end, a pivotally mounted tensioning lever and an axle body comprises, which is mounted with a centrally arranged first section in the housing and has an eccentrically arranged second section, on the second section of which a pressure piece operatively connected to a clamping body is mounted in such a way that when the axle body rotates about its longitudinal axis, the one mounted on the second section Pressure piece together with the clamping body having a clamping surface can be moved relative to the base plate from a tape insertion position into a clamping position that holds the tape end for the tensioning process and back again.
  • manually operated and fully automatic devices are generally known, in which devices the band inserted into a band channel is moved back and forth Movement of a tensioning lever tensioned, held by a clamping station and then the ends of the strap are connected to one another either by seals or buckles or, if plastic straps are used, by welding, after which the device can be removed again from the strapping.
  • a device of this known type is known from GB-A 409 168, which essentially comprises a housing provided with a laterally formed band support, an axle body mounted with one end in the housing, and an oval recess provided on an eccentric piece of the axle body Pressure piece, a clamping body operatively connected to the pressure piece via a guide groove oriented in the direction of transport of the belt and designed as an inclined plane, and a tensioning lever mounted on a part of the axle body, the individual elements being designed such that when the tensioning lever is actuated, the eccentric piece essentially oscillates is moved and the pressure piece mounted on it is actuated in such a way that the clamping body is either moved in the transport direction and brought into clamping engagement with the belt, or that the clamping body is released and counteracted by the restoring force of a spring Transport direction is shifted and thereby disengaged from the belt.
  • the clamping body is brought into engagement with the band with a relatively slowly increasing holding force when the tensioning lever is pulled up, the required clamping force being achieved successively when a corresponding band tension is reached and only when the tensioning lever is fully raised, so that the movement of the toothing undesired wear of the teeth or, due to abrasion, a closing of the tooth gaps takes place and thus a perfect clamping of the band is no longer guaranteed, so that the clamping body slips through the band after a relatively short operating time enables and must therefore be replaced after a relatively short period of operation to ensure operational safety.
  • the invention is based on the object of designing and improving a device for tensioning a band around a packaged product of the type mentioned in such a way that, at the beginning and also during the tensioning phase, the clamping body arranged on the pressure element has a sufficient clamping force which holds the band end and a subsequent clamping force Loosening of the clamping body in engagement with the band end is ensured without additional aids.
  • the clamping body is firmly connected to the pressure piece and the pressure piece at its free end facing the band end has a projection which is oriented counter to the tensioning direction of the band and is provided with a sliding surface and which is arranged in a region of the base plate of the housing and protrudes in the direction of the band end in such a way that during the movement of the pressure piece with the clamping body oriented in the direction of the band end, the projection with its inclined sliding surface can be moved to increase the clamping force acting on the band end against a support surface of the housing which is inclined in the same direction .
  • the device has a simple construction, the stresses occurring during the clamping process being relatively low, so that at least the housing and the clamping lever stored in it can be made of suitable plastic.
  • the combined design also has the advantage that when the tensioning lever is operatively connected to a ratchet, the band is tensioned and, by means of the cutting station actuated thereby, the band is tensioned by means of the cutting station actuated in this way without problems and without any further aids can be separated from the tape supply. Furthermore, in the device according to the invention, the three functionally essential features of clamping / holding, tensioning and severing the tape from the tape supply can be carried out with a single tensioning lever.
  • FIG. 1, 1 is a packaged item of any type, around which a strapping is placed by hand, which is referred to below as strap 2 and whose strap end 3 is inserted into a device 4 for tensioning.
  • the band end 3 lies in a band channel 5, see also FIG. 4, and projects so far out of the band channel 5 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 manually moved back and forth to actuate a ratchet (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 clamping station 10.
  • a recess 17 which serves to receive a pressure piece 18.
  • the pressure piece 18 is rotatably mounted on a second section 20 which is arranged eccentrically on an axle body 21 and is fixedly connected.
  • the axle body 21 comprises a guide part 26, a first section 28 arranged coaxially at one end and the second section 20 arranged eccentrically at the other end (FIG. 3).
  • the axle body 21 is rotatably supported by means of bearing parts 22, 23 in bores 24, 25 of the housing 15.
  • the guide part 26 for a schematically illustrated torsion spring 27 is located between the bearing parts 22, 23.
  • a pawl 30 is arranged on the first section 28 of the axle body 21 and is firmly connected to the first section 28, for example by a wedge connection 29.
  • the tensioning lever 16 If the tensioning lever 16 is depressed in the direction of the arrow 31, it presses with a cam 32 (FIG. 1) on 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 is.
  • the pressure piece 18 When the pawl 30 is depressed, the pressure piece 18 is raised on the one hand by the second section 20 (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 restoring force of the torsion spring 27 and thus the axle body 21, as a result of which the pressure piece 18 is lowered into the rest position shown in FIG. 2.
  • the pressure piece 18 has a projection 35 protruding in the direction of the band end 3, the back of which, designed as a sliding surface 34, 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 projection 35 so that the band end 3 can be reliably clamped to the support surface 36 by positive engagement of the projection 35 even at the start of tensioning the band 2.
  • a clamping body 40 is fastened in the region of the projection 35 by means of a dovetail guide 41.
  • the underside of the clamping body 40 which can have a convexly curved shape, forms a clamping surface 42, which is provided with grip projections, for example with grooves or serrations (not shown), 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 pressure piece 18 by a wall 43 of a base plate 45, which forms part of the housing 15.
  • a part of the wall 43 of the base plate 45 is formed in the area of the clamping surface 42 as a support surface 46, which can have a concave shape to adapt to the convex shape of the clamping surface 42 of the clamping body 40, which may also have gripping projections, for example scoring or serrations , is provided (not shown).
  • Fig. 5 the pressure piece 18 is shown in the clamping position, in which the clamping body 40 presses the band end 3 on the support surface 46 of the base plate 45 by means of the clamping surface 42, the projection 35 of which by the Torsion spring 27 loaded eccentric drive is pressed into the gap 37 along the support surface 36.
  • the projection 35 causes the clamping point of the band end 3 to lie laterally from the axis of the second section 20 of the axle body 21, so that the force with which the eccentric drive loaded by the torsion spring 27 causes the pressure piece 18 with the clamping body 40 to be relatively low small angle 48 presses the tape end 3.
  • an additional force is exerted on the pressure member 18 by the guided on the support surface 36 protrusion 35, that is, end of tape 3 is clamped reliably end of the tape 3 in spite of the belt 2 in the direction of arrow 49 (Fig. 5) tape tension exerted. It is not necessary to press the pressure piece 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) and is operatively connected to a ratchet consisting of a gear wheel and pawl (not shown).
  • This shaft carries a tensioning drum 50, which represents the tensioning element of tensioning station 10.
  • the strapping of the packaged goods 1 with the band 2 is carried out as follows: First, the tensioning lever 16, as shown in FIG. 1, is fully depressed in the direction of arrow 31, as a result of which the pawl 30 rotates due to the cam 32 and thereby the pressure piece 18 as a result of the movement of the eccentric first section 20 of the axle body 21 into that in FIG. 4 illustrated tape loading position is raised. As a result, 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. Now the clamping lever 16 is released so that it is pivoted by the restoring force of the torsion spring 27 by the pawl 30 into the position shown in FIG. 1.
  • the pressure piece 18 has been lowered, the projection 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 through 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 band parts 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 52 is fastened on the sliding surface 34 of the projection 35, which engages supports the inner wall 17 'of the recess 17 and presses the pressure piece 18 into the position shown in FIG. 4.
  • the position or position of the pressure piece 18 is limited by a further support surface 15 ′ of the housing 15, through which the pressure piece 18 does not have a large angle 48, ie an angle against 90 ° to the wall 43 of the base plate 45 can take, which limits the maximum explosive forces that occur.
  • the restoring force of the spring 52 is dimensioned such that the pressing of the projection 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 pressure piece 18 can be reliably avoided, the device can be easily built.
  • the clamping body 40 is moved in the direction of arrow 49 of the belt tension, as a result of which the positive locking of the clamping body 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, which is arranged relative to the handle part 14, can be gripped more easily during handling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Package Frames And Binding Bands (AREA)
EP90113755A 1989-08-15 1990-07-18 Gerät zum Spannen eines Bandes um ein Packgut Expired - Lifetime EP0413160B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=4245932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113755A Expired - Lifetime EP0413160B1 (de) 1989-08-15 1990-07-18 Gerät zum Spannen eines Bandes um ein Packgut

Country Status (6)

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

Families Citing this family (9)

* 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.
ATE237500T1 (de) * 1998-10-29 2003-05-15 Orgapack Gmbh Umreifungsgerät
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 (en) 2014-03-31 2017-03-01 CNH Industrial Belgium nv Needle gripper for an agricultural baler
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

Family Cites Families (5)

* 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
CH586135A5 (xx) * 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.

Also Published As

Publication number Publication date
JPH03124512A (ja) 1991-05-28
EP0413160A1 (de) 1991-02-20
CH679571A5 (xx) 1992-03-13
US5117615A (en) 1992-06-02
DE59007325D1 (de) 1994-11-03
ATE112220T1 (de) 1994-10-15

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