EP0712371B1 - Adhesive tape dispensing device - Google Patents

Adhesive tape dispensing device Download PDF

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Publication number
EP0712371B1
EP0712371B1 EP94923054A EP94923054A EP0712371B1 EP 0712371 B1 EP0712371 B1 EP 0712371B1 EP 94923054 A EP94923054 A EP 94923054A EP 94923054 A EP94923054 A EP 94923054A EP 0712371 B1 EP0712371 B1 EP 0712371B1
Authority
EP
European Patent Office
Prior art keywords
reel
tape
support
supporting structure
supporting
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
EP94923054A
Other languages
German (de)
French (fr)
Other versions
EP0712371A1 (en
Inventor
Aldo Nassi
Piero Brogi
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.)
Syrom 90 SpA
Original Assignee
Syrom 90 SpA
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 Syrom 90 SpA filed Critical Syrom 90 SpA
Publication of EP0712371A1 publication Critical patent/EP0712371A1/en
Application granted granted Critical
Publication of EP0712371B1 publication Critical patent/EP0712371B1/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
    • 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
    • B65H35/002—Hand-held or table apparatus
    • B65H35/0026—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape
    • B65H35/0033—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape and affixing it to a surface
    • 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

Definitions

  • the invention relates to a device for unwinding adhesive tape from reels, the adhesive tape generally being relatively wide and capable of being used with dispensers of the manual type; the reels may be of the normal type, from 38 to 75, and from 50 to 200 metres, with cores from 11 ⁇ 2 ( ⁇ 3.8 cm) to 3" ( ⁇ 7.6 cm)
  • the invention provides a dispenser device with a handle for manual operation, according to claim 1.
  • the device comprises on a supporting structure a shaft for the support and rotation of the reel, a pressure roller - generally elastic - and a serrated blade for the transverse cutting of the unwound and applied tape.
  • the equipment also comprises a member for the support and deflection of the tape, this member being positioned so that it bears on the periphery of the reel to reduce to a minimum the free section of the trajectory of the tape from the point of detachment from the reel to the first point of contact with the support member.
  • the device comprises, on the said supporting structure, an element which is movable angularly about a hinge axle parallel to that of the shaft and which carries - at a distance from the said hinge axle -the said member for the support and deflection of the tape.
  • the said element is advantageously acted on by elastic means to keep the said tape support and deflection member against the periphery of the reel, during the reduction in diameter of the reel.
  • the hinge axle of the said element may be positioned on the supporting structure in such a way that the force exerted on the element by the tension of the tape being unwound has a component which presses the said element against the reel.
  • the support and deflection member may be a free-running roller, preferably of a very small diameter, or a non-rotating member, suitably shaped and preferably of small section, and shaped to reduce to a minimum the degree of friction as the tape slides over it.
  • the number 1 indicates a supporting structure which comprises in particular - in the embodiment illustrated - a handle 1A for manual use of the device.
  • a support shaft 3 for a reel 5 of adhesive tape which is fitted by friction on the said shaft so that it can rotate passively but with a limited resistant torque, to facilitate the unwinding of the adhesive tape indicated by N.
  • the number 7 indicates a pressure roller to facilitate the support and application, in other words the adhesion, of the tape N on the object to which the said tape is to be applied; this roller 7 may also advantageously be a rubber-coated roller.
  • the number 9 indicates a serrated blade, transverse with respect to the movement of the unwound and applied tape, by means of which blade 9 it is possible to cut the tape transversely with a movement consisting of bearing on the tape and compressing it.
  • Devices of this type are known both in a manual version such as that having the handle 1A, and in an automatic version for packaging operations of an industrial type.
  • the adhesive tape N on being detached from the reel B in any condition of unwinding of the reel 5, describes a free trajectory - approximately as indicated by TL in Fig. 1 - from the point of detachment from the periphery of the reel to the pressure roller 7 which deflects the tape N towards the application area.
  • This free section whose orientation varies according to the degree of unwinding of the reel and the tape's resistance to detachment from the outermost layer of the reel 5, is in all cases a relatively very long trajectory and is normally subject to vibrations due to the inherent and typical irregularity of the detachment of the tape from the periphery of the reel; these irregularities cause vibrations and consequently a noise which it is the object of the invention to eliminate or at least attenuate to a substantial extent.
  • the free travel of the tape from the point of detachment from the periphery of the reel to a first deflection member with which the tape makes contact is reduced to a minimum.
  • the structure 1 pivots about a pin 10 a swinging element 12 comprising at least one arm 14 and one member for supporting and deflecting the tape, which is represented in this embodiment by a relatively thin roller 16, which is free running and can approach the periphery of the reel 5 as a result of the swinging of the element 12 and in particular of the arm 14; the roller member 16 is in particular forced to press elastically on the periphery of the reel under the action of an elastic means 18, such as a tension spring which acts by tension between the arm 14 and the structure 1 to exert pressure against the periphery of the reel 5 regardless of the degree of unwinding, from zero to partially or to virtually totally, of the reel 5; the roller 16 can also reach a position very close to the shaft, as indicated by 16X in Fig. 1.
  • the roller 16 may be mounted on a rod which forms a rotation shaft carried by the arm 14. It is possible for the element 12 to comprise a double arm 14 to support the roller 16 so that it does not project but is supported at both
  • This member 116 has a surface for contact with and sliding of the tape, which, when it is detached from the periphery of the reel B, makes contact virtually immediately with this member 116 and slides over it as a result of the pull of the tape itself which is applied to the member to which it is to adhere.
  • no particular elastic member is shown for pressing the member 116 so that it bears on the periphery of the reel.
  • Figs. 5 and 6 show a dispenser according to the invention, in which to the supporting structure 1 a pin 610 is fixed to pivot an oscillating element 612 including two arms 612A mutually connected by a crosspiece 612B.
  • the two mobile ends of said arms 612A carry a shaft 616 having a circular cross section of small diameter and which can rotate within the bushes.
  • the element 612 is urged by a helicoidal spring 618, housed within a seat 620A in a sleeve 620 inserted onto pin 610 so that the shaft 616 is urged to press against the external surface of the reel 5 carried by support shaft 3.
  • the tape is unwound around the shaft 616 and is deviated by the latter toward the pressure roller 7.

Landscapes

  • Adhesive Tape Dispensing Devices (AREA)
  • Replacement Of Web Rolls (AREA)
  • Adhesive Tapes (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Package Closures (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Winding Of Webs (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The equipment comprises, on a supporting structure (1), a shaft (3) for the support and rotation of the reel (5), a pressure roller (7) and a serrated blade (9) for the transverse cutting of the tape after it has been unwound and applied; it also comprises a member (116) for the support and deflection of the tape (N), which is positioned so that it bears on the periphery of the reel (5), to reduce to a minimum the free section of the trajectory of the tape (N) from the point of detachment from the reel to the first point of contact with the supporting member (116).

Description

Technical Field
The invention relates to a device for unwinding adhesive tape from reels, the adhesive tape generally being relatively wide and capable of being used with dispensers of the manual type; the reels may be of the normal type, from 38 to 75, and from 50 to 200 metres, with cores from 1½ (∼3.8 cm) to 3" (≈7.6 cm)
Background Art
In each of the above mentioned applications there is a known acoustic problem due to the noise which the adhesive tape - especially the polypropylene type - generates during unwinding from the reel. From an analysis of the phenomenon it has been found that the noise, and consequently the acoustic pollution arising from it, are at least partly due to the vibrations to which the adhesive tape is subject during the unwinding, owing to the irregularity of the detachment and hence to the vibrations which the first section of the tape being detached from the reel undergoes before it reaches a contact and support point for the deflection of the tape towards the application and transverse cutting elements. This noise is a very marked defect in all applications of the manual or, in particular, the automatic type. A principal object of the invention is to eliminate the noise and consequently the acoustic pollution caused by the unwinding of the adhesive tape from the reel. This and other objects will be made clear by the following text.
Disclosure of the invention
From DE-A-3 311 170 and EP-A-0 178 696 tape dispensers for packaging machines are known, which include an angularly movable element which is forced against the reel and around which the tape is deflected, in order to reduce noise. These known devices are not for hand operation.
The invention provides a dispenser device with a handle for manual operation, according to claim 1.
The device comprises on a supporting structure a shaft for the support and rotation of the reel, a pressure roller - generally elastic - and a serrated blade for the transverse cutting of the unwound and applied tape. According to the invention, the equipment also comprises a member for the support and deflection of the tape, this member being positioned so that it bears on the periphery of the reel to reduce to a minimum the free section of the trajectory of the tape from the point of detachment from the reel to the first point of contact with the support member.
The device comprises, on the said supporting structure, an element which is movable angularly about a hinge axle parallel to that of the shaft and which carries - at a distance from the said hinge axle -the said member for the support and deflection of the tape.
The said element is advantageously acted on by elastic means to keep the said tape support and deflection member against the periphery of the reel, during the reduction in diameter of the reel. Additionally, the hinge axle of the said element may be positioned on the supporting structure in such a way that the force exerted on the element by the tension of the tape being unwound has a component which presses the said element against the reel.
The support and deflection member may be a free-running roller, preferably of a very small diameter, or a non-rotating member, suitably shaped and preferably of small section, and shaped to reduce to a minimum the degree of friction as the tape slides over it.
Brief description of the drawings
The invention will be more clearly understood from the description and the attached drawings which show non-restrictive practical embodiments of the invention. In the drawing,
  • Fig. 1 is a schematic partial side view of a device of the manual type for dispensing adhesive tape;
  • Fig. 2 is a partial view from the line II-II in Fig. 1;
  • Fig. 3 is a local section through III-III in Fig. 2, which also illustrates a detail of Fig. 1 in section;
  • Fig. 4 shows, in a similar way to Fig. 1, a further embodiment of a dispenser device;
  • Figs. 5 and 6 show an embodiment according to the invention.
    • The embodiments of Figs 1-4 are not within the scope of the invention as set forth in claim 1.
    Best mode for carrying out the invention
    According to the attached drawing, the number 1 indicates a supporting structure which comprises in particular - in the embodiment illustrated - a handle 1A for manual use of the device. On the structure 1 there is provided a support shaft 3 for a reel 5 of adhesive tape, which is fitted by friction on the said shaft so that it can rotate passively but with a limited resistant torque, to facilitate the unwinding of the adhesive tape indicated by N. The number 7 indicates a pressure roller to facilitate the support and application, in other words the adhesion, of the tape N on the object to which the said tape is to be applied; this roller 7 may also advantageously be a rubber-coated roller. The number 9 indicates a serrated blade, transverse with respect to the movement of the unwound and applied tape, by means of which blade 9 it is possible to cut the tape transversely with a movement consisting of bearing on the tape and compressing it. Devices of this type are known both in a manual version such as that having the handle 1A, and in an automatic version for packaging operations of an industrial type.
    Normally, the adhesive tape N, on being detached from the reel B in any condition of unwinding of the reel 5, describes a free trajectory - approximately as indicated by TL in Fig. 1 - from the point of detachment from the periphery of the reel to the pressure roller 7 which deflects the tape N towards the application area. This free section, whose orientation varies according to the degree of unwinding of the reel and the tape's resistance to detachment from the outermost layer of the reel 5, is in all cases a relatively very long trajectory and is normally subject to vibrations due to the inherent and typical irregularity of the detachment of the tape from the periphery of the reel; these irregularities cause vibrations and consequently a noise which it is the object of the invention to eliminate or at least attenuate to a substantial extent.
    To achieve this object, the free travel of the tape from the point of detachment from the periphery of the reel to a first deflection member with which the tape makes contact is reduced to a minimum.
    In the examples illustrated in Figs. 1 to 3, the structure 1 pivots about a pin 10 a swinging element 12 comprising at least one arm 14 and one member for supporting and deflecting the tape, which is represented in this embodiment by a relatively thin roller 16, which is free running and can approach the periphery of the reel 5 as a result of the swinging of the element 12 and in particular of the arm 14; the roller member 16 is in particular forced to press elastically on the periphery of the reel under the action of an elastic means 18, such as a tension spring which acts by tension between the arm 14 and the structure 1 to exert pressure against the periphery of the reel 5 regardless of the degree of unwinding, from zero to partially or to virtually totally, of the reel 5; the roller 16 can also reach a position very close to the shaft, as indicated by 16X in Fig. 1. The roller 16 may be mounted on a rod which forms a rotation shaft carried by the arm 14. It is possible for the element 12 to comprise a double arm 14 to support the roller 16 so that it does not project but is supported at both ends.
    It is clear from Fig. 3 in particular that the free trajectory of tape N from the point P of detachment from the periphery of the reel 5 to the point of contact with the roller 16 is extremely limited in longitudinal extension, and therefore the noise due to the detachment and the vibration of the tape in this free trajectory is attenuated almost to nothing.
    In the example shown in Fig. 4, where the same reference numbers indicate members corresponding to those described previously, there is mounted on the same structure 1 a pin 110 equivalent to 10 to pivot an arm 114 or a pair of arms 114 which carries or carry at the end a support member 116 corresponding functionally to the roller 16 and shaped suitably as shown in the drawing. This member 116 has a surface for contact with and sliding of the tape, which, when it is detached from the periphery of the reel B, makes contact virtually immediately with this member 116 and slides over it as a result of the pull of the tape itself which is applied to the member to which it is to adhere. In this embodiment, no particular elastic member is shown for pressing the member 116 so that it bears on the periphery of the reel.
    Figs. 5 and 6 show a dispenser according to the invention, in which to the supporting structure 1 a pin 610 is fixed to pivot an oscillating element 612 including two arms 612A mutually connected by a crosspiece 612B. By means of bushes 614 the two mobile ends of said arms 612A carry a shaft 616 having a circular cross section of small diameter and which can rotate within the bushes. The element 612 is urged by a helicoidal spring 618, housed within a seat 620A in a sleeve 620 inserted onto pin 610 so that the shaft 616 is urged to press against the external surface of the reel 5 carried by support shaft 3. The tape is unwound around the shaft 616 and is deviated by the latter toward the pressure roller 7.
    It is to be understood that the drawing shows only an example provided solely as a practical demonstration of the invention, and that this invention may be varied in its forms and dispositions without departure from the scope of the claims. The presence of any reference numbers in the enclosed claims has the purpose of facilitating the reading of the claims with reference to the description and to the drawing, and does not limit the scope of protection represented by the claims.

    Claims (2)

    1. A manual adhesive tape dispensing equipment in which a tape wound on a reel (5) is unwound from the back surface of the underlying layer, induding: a supporting structure (1) with a handle (1A); on said supporting structure a support shaft (3) for a tape reel (5); on said supporting structure (1) a pressure roller (7) around which the tape unwound from said reel is deflected; characterized by :
      an element (612) which is movable angularly about a hinge axle (610) supported by said supporting structure (1) and parallel to the axis of said shaft (3) and which carries, at a distance from said hinge axle, an additional tape supporting and deflecting member (616), said supporting and deflecting member being posiboned and forced to press on the periphery of the reel (5) to reduce to a minimum the free section of the trajectory of the tape (N) from the point P of detachment from the reel (5) to the first point of contact with the said support and deflection member (616);
      a sleeve (620) arranged coaxial with said hinge axle (610) and
      an elastic means (618) urging said additional tape supporting and deflecting member (616) against said reel (5); said elastic means (618) being housed within a seat (620A) in said sleeve (620), whereby when the reel (5) is nearly empty, the type unwound from the reel (5) is deflected around said deflection member (616) and around said sleeve (620).
    2. Equipment according to Claim 1, characterized in that the said first support and deflection member is a rotating shaft (616) of small diameter.
    EP94923054A 1993-08-02 1994-07-26 Adhesive tape dispensing device Expired - Lifetime EP0712371B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    ITFI930155 1993-08-02
    ITFI930155A IT1262491B (en) 1993-08-02 1993-08-02 PROCEDURE AND TOOL FOR THE SUBSTANTIALLY SILENT DEVELOPMENT OF A SELF-ADHESIVE TAPE FROM THE DISPENSING ROLL
    PCT/IT1994/000126 WO1995003990A1 (en) 1993-08-02 1994-07-26 Method and equipment for the substantially silent unwinding of a self-adhesive tape from the dispenser reel

    Publications (2)

    Publication Number Publication Date
    EP0712371A1 EP0712371A1 (en) 1996-05-22
    EP0712371B1 true EP0712371B1 (en) 2001-10-31

    Family

    ID=11350580

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP94923054A Expired - Lifetime EP0712371B1 (en) 1993-08-02 1994-07-26 Adhesive tape dispensing device

    Country Status (14)

    Country Link
    EP (1) EP0712371B1 (en)
    AT (1) ATE207845T1 (en)
    AU (1) AU7275494A (en)
    DE (1) DE69428900T2 (en)
    DK (1) DK0712371T3 (en)
    ES (1) ES2163448T3 (en)
    FI (1) FI960454A (en)
    HU (1) HUT73684A (en)
    IT (1) IT1262491B (en)
    NO (1) NO960390D0 (en)
    PL (1) PL312778A1 (en)
    PT (1) PT712371E (en)
    WO (1) WO1995003990A1 (en)
    ZA (1) ZA945183B (en)

    Families Citing this family (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2749572B1 (en) * 1996-06-11 1998-07-10 Sarl Cambo DEVICE FOR SUPPORTING AND UNWINDING ADHESIVE TAPE REELS
    FR2831150A1 (en) * 2001-10-19 2003-04-25 Jean Joseph Marie Charriere Adhesive tape applicator has front section, in which reel of tape is mounted, reel rotating backwards as applicator is moved forward so that its free end passes over pressure roller and then under it
    US6926059B2 (en) * 2003-12-30 2005-08-09 3M Innovative Properties Company Masking tape applicator
    CN105059997B (en) * 2015-09-01 2017-09-01 深圳市万引力工程技术有限公司 Adhesive tape cutter
    DE102018208845A1 (en) 2018-06-05 2019-12-05 Tesa Se Adhesive tape applicator with swiveling deflection edge unit
    PL3725717T3 (en) * 2019-04-15 2022-06-13 Enviro Group GmbH Adhesive tape dispenser

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3536569A (en) * 1967-11-13 1970-10-27 James L Gosnell Dispenser-applicator apparatus for masking tape
    US3567557A (en) * 1968-08-22 1971-03-02 John D Kingery Masking tape and masking paper applicator
    US4255218A (en) * 1979-02-28 1981-03-10 Minnesota Mining And Manufacturing Company Method and apparatus for applying adhesive strip
    DE3311170A1 (en) * 1983-03-26 1984-10-04 Rosenberg & Co, 3410 Northeim Adhesive head for drawing off and applying a strip of self-adhesive tape to a box, for use in box-sealing machines
    IT8423545V0 (en) * 1984-10-17 1984-10-17 Marchetti Augusto ADHESIVE TAPE FEEDER UNIT, ESPECIALLY FOR TAPING UNIT FOR CARDBOARD BOX SEALING MACHINE.

    Also Published As

    Publication number Publication date
    HU9600233D0 (en) 1996-03-28
    FI960454A0 (en) 1996-01-31
    ATE207845T1 (en) 2001-11-15
    PL312778A1 (en) 1996-05-13
    HUT73684A (en) 1996-09-30
    IT1262491B (en) 1996-06-28
    PT712371E (en) 2002-02-28
    ITFI930155A1 (en) 1995-02-02
    WO1995003990A1 (en) 1995-02-09
    AU7275494A (en) 1995-02-28
    ITFI930155A0 (en) 1993-08-02
    DK0712371T3 (en) 2001-11-26
    NO960390L (en) 1996-01-30
    EP0712371A1 (en) 1996-05-22
    DE69428900T2 (en) 2002-04-25
    NO960390D0 (en) 1996-01-30
    FI960454A (en) 1996-03-18
    ES2163448T3 (en) 2002-02-01
    DE69428900D1 (en) 2001-12-06
    ZA945183B (en) 1995-02-24

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