EP0299387B1 - Werkzeug zum Spannen und Abscheiden eines Haltebandes - Google Patents

Werkzeug zum Spannen und Abscheiden eines Haltebandes Download PDF

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Publication number
EP0299387B1
EP0299387B1 EP88110966A EP88110966A EP0299387B1 EP 0299387 B1 EP0299387 B1 EP 0299387B1 EP 88110966 A EP88110966 A EP 88110966A EP 88110966 A EP88110966 A EP 88110966A EP 0299387 B1 EP0299387 B1 EP 0299387B1
Authority
EP
European Patent Office
Prior art keywords
actuating lever
force
tension
implement according
nut
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
EP88110966A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0299387A1 (de
Inventor
Günther Malchow
Horst Schlottke
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.)
Paul Hellermann GmbH
Original Assignee
Paul Hellermann GmbH
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 Paul Hellermann GmbH filed Critical Paul Hellermann GmbH
Publication of EP0299387A1 publication Critical patent/EP0299387A1/de
Application granted granted Critical
Publication of EP0299387B1 publication Critical patent/EP0299387B1/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
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/025—Hand-held tools
    • B65B13/027—Hand-held tools for applying straps having preformed connecting means, e.g. cable ties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B25/00—Implements for fastening, connecting or tensioning of wire or strip
    • B25B25/005—Implements for fastening, connecting or tensioning of wire or strip for applying wire clasps to hose couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools

Definitions

  • the invention relates to a tool for tensioning and cutting off a tether with a pulling element that can be connected to the holding strap, a cutting element and a drive element that is connected to the pulling element via a switching mechanism, the switching mechanism for comparing the force exerted on the pulling element with an adjustable, of a spring predetermined threshold force and for actuating the cutting member when the threshold force is exceeded comprises a switching rocker connected to the drive member, on which the spring acts.
  • Such tools for tensioning and cutting holding straps for cable ties or the like are known (DE-PS-23 00 782), in which the achievable tension of the strap is set by means of a bolt determining the pretension of a spring.
  • the force of the spring is just as great as the desired threshold value of the tension force at which the tensioning process is ended and the cutting off of the strip end is triggered; this means high pressure on the compression spring and the switching mechanism and results in a difficult setting of the threshold value.
  • the switching mechanism of the known clamping tools has a large number of individual parts which are connected to one another in an articulated manner, which leads to a complex structure.
  • the switching mechanism comprises a rocker arm which is connected at one end to a hand lever as the drive element, is fixed to the housing in the middle and is pulled into a rest position by a spring force at the other end.
  • the hand lever forming the drive element is pulled in a direction transverse to the rocker arm by a force which depends on the force acting in the pull element by a diagonally extending link transmitting the drive force to the pull element.
  • a threshold force that can be adjusted by adjusting the spring force is exceeded, the switching rocker moves out of its rest position and actuates the cutting member.
  • the drive element acts on the pulling element via a series of links which comprise a double lever which is supported on a switching rocker which interacts on the one hand with the cutting element and on the other hand with an adjustable locking curve.
  • This arrangement has the disadvantage that the force ratios and thus the set threshold force are highly dependent on the random angle setting of the hand lever forming the drive element.
  • the invention has for its object to provide a tool of the type mentioned, which has a simple structure in which the desired belt tension is easily adjustable, the switching mechanism is not highly stressed and / or in which the set belt tension is essentially independent of the random position of the drive element.
  • the solution according to the invention is that the shift rocker is connected to the pulling element in a first pivot point and to the drive element in a second pivot point remote from the first pivot point, and that a stop is provided which supports the shift rocker in a predetermined rest position, the stop and the shift rocker is adjustable relative to one another to change the rest position of the shift rocker.
  • the shift rocker is mounted on a slide connected to or forming part of the pulling element, which carries a threaded adjusting bolt on which a nut forming the stop for the shift rocker is adjustable.
  • the adjusting bolt is expediently arranged on the carriage so as to be displaceable in its longitudinal direction and is supported on the carriage by means of the spring, carrying a nut against which one end of the switching rocker lies.
  • the adjusting bolt is advantageously provided with a left-hand and a right-hand thread, by means of which two nuts which move in opposite directions and act on the shift rocker are axially adjustable. This enables a faster adjustment of the inclination of the bracket with respect to the carriage.
  • Means for indicating their relative position, which corresponds to the set tension value of the band, can be assigned to the nuts.
  • the pistol-shaped tool body 1 has a handle 3 at its rear end, which can be gripped together with a hand lever 5 mounted in the tool body for actuating the tool.
  • a front plate 8 At the front end of the tool there is a front plate 8 which contains a slot 7 for inserting the end of the retaining strap to be tensioned. Behind the slot 7 is at its front end with a clamp 9 for that to be exciting Retaining strap 53 provided drawbar 11 is arranged, which is articulated at its rear end at 13 to a carriage 15 which extends substantially in the same direction as the drawbar 11 and together with this forms the mentioned tension member.
  • the carriage 15 is articulated in a manner to be explained later with the one free end of a transport lever 47, which can be pivoted about a bolt 60 fixed to the housing and the other free end 61 of which is actuated by a return spring 40 in such a way that an opposite direction of travel on the carriage acting force is exerted.
  • a cam roller 51 of the hand lever 5 bears against a curved path 49 of the transport lever 47. If the hand lever 5 is approached to the handle 3, the upper end of the transport lever 47 and thus the slide 15 and the pull bracket 11 are moved rearward with the clamp 9 (right in the drawing), as a result of which the holding band 53 is tensioned (FIG. 2 ).
  • the tether can be withdrawn by a desired distance. So far the construction is known.
  • the upper end of the transport lever 47 is connected to the carriage 15 via a double-armed rocker arm 39, which is articulated in a central region of its length by means of a joint 37 to the carriage and near its front end by means of a joint 42 to the transport lever 47.
  • the hinge 42 is located closer to the front end of the tool and with respect to the connecting line between the hinge 37 and the clamp 9 higher (further away from the pivot point 60) than the hinge 37, so that when the clamping force is transmitted from the transport lever to the slide is exerted on the rocker 39 by a torque rotating clockwise in the drawing.
  • the carriage 15 is fixedly connected to two bearing parts 17, which contain bores for the rotatable and longitudinally movable reception of an adjusting bolt 19 which has a groove for a snap ring 21 arranged between the two bearing parts 17.
  • an adjusting bolt 19 which has a groove for a snap ring 21 arranged between the two bearing parts 17.
  • a compression spring 23 which is arranged coaxially on the bolt 19, is supported and urges it in relation to the carriage 15 to the left in the figures.
  • the bolt 19 is provided with a left-handed thread 25 and a right-handed thread 27 and with an adjustment head 29 which can be actuated on the rear of the tool.
  • a first nut 31 is arranged on the left-hand thread 25 and a second nut 35 on the right-hand thread 27.
  • the nuts are non-rotatable relative to the housing and can therefore be adjusted axially in opposite directions by rotating the adjustment head 29.
  • the switching rocker 39 has at its end closer to the joint 42 a hook-shaped projection 41 which bears against the forward-facing forehead of the nut 31, by means of which it engages the nut 31 when the clamping force is transmitted to the slide 15 compared to the torque mentioned above is supported at point 43.
  • the upper edge of the rocker arm 39 forms a contact curve 38 for a tab 33 fixedly arranged on the second nut 35.
  • the shift rocker 39 is in a position in which the joint 42 is only a little above the joint 37, namely by the distance b1 lies, while the contact point 43 is the distance al above the joint 42; this results in a relatively short length for the spring 23 between the bearing part 17 and the snap ring 21 and accordingly a high spring preload F,. If the distance between the nuts 31, 35 according to FIG. 6 is set small, this results in a larger distance b2 in relation to the distance a2 and a low spring preload F1.
  • the rocker arm 35 carries a slider in the form of a roller 44 for actuating a knife rocker 45.
  • the knife rocker arm 45 which is pivotably mounted on the bolt 57 fixed to the housing, carries a knife 59 at its front end directly behind the front plate 8, which in the idle state as a result of Effect of a compression spring 50 is below the opening 7. Is due to the switching function of the shift arm. 39 depressed the rear end of the knife rocker arm, the front end of the knife rocker arm is raised with the knife and the retaining band 53 is cut off.
  • the starting position of the tool is indicated in FIG. 1; the free band end of the retaining band 53 comprising a cable bundle 58 or the like is fed through the slot 7 of the clamp 9 and held by the latter.
  • the actuation of the hand lever brings the tool into the position shown in FIG. 2.
  • the movement of the carriage 15 to the rear is limited by a stop, not shown.
  • the switching rocker 39 remains in its predetermined position by the nuts 31, 35. If the force F 2 exerted by the transport lever 47 on the rocker arm 39 exceeds the set threshold value, which corresponds to a predetermined tension of the belt 53, the rocker arm 39 rotates about the articulation point 37, so that the rocker arm 45 is actuated by the slider 44, which rotates around the hinge point 57 and cuts off the end of the band by means of the knife 59, as is shown in more detail in FIGS. 3 and 4.
  • the return spring 50 keeps the knife rocker 45 in contact with the slider 44.
  • the tension of the band 53 can be adjusted within a wide range using a light compression spring 23.
  • the required compressive force of the spring 23 is very low in comparison with known tensioning tool arrangements because the threshold value of the band tension is not determined directly by the bias of the spring, but rather by the position of the switching rocker 39. This facilitates the setting of the threshold value by actuating the head 29, particularly when the threshold values are high; this also enables a more precise adjustment of the tension of the belt.
  • the mechanism which determines the threshold value can also be of a lighter and simpler design because it is exposed to less forces.
  • the nuts 31, 35 can be assigned means visible from outside the tool body 1, which indicate their relative position to one another and thereby the set tension.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP88110966A 1987-07-09 1988-07-08 Werkzeug zum Spannen und Abscheiden eines Haltebandes Expired - Lifetime EP0299387B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8709487U DE8709487U1 (de) 1987-07-09 1987-07-09 Werkzeug zum Spannen und Abschneiden eines Haltebandes
DE8709487U 1987-07-09

Publications (2)

Publication Number Publication Date
EP0299387A1 EP0299387A1 (de) 1989-01-18
EP0299387B1 true EP0299387B1 (de) 1991-02-06

Family

ID=6809908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110966A Expired - Lifetime EP0299387B1 (de) 1987-07-09 1988-07-08 Werkzeug zum Spannen und Abscheiden eines Haltebandes

Country Status (2)

Country Link
EP (1) EP0299387B1 (es)
DE (2) DE8709487U1 (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5915425A (en) * 1996-08-28 1999-06-29 Thomas & Betts Corporation Cable tie installation tool
EP1231140A1 (de) 2001-02-12 2002-08-14 Hellermann Tyton GmbH Bindewerkzeug
CN100515865C (zh) * 2004-02-13 2009-07-22 托马斯及贝茨国际股份有限公司 电缆扎带工具的张紧和防反冲机构
CN103458813A (zh) * 2011-02-02 2013-12-18 新特斯有限责任公司 骨固定组件
US11730527B2 (en) 2019-11-04 2023-08-22 Stryker European Operations Limited Surgical instrument for tightening a bone fixation member around bone

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210080U1 (de) * 1992-07-27 1992-09-24 TRW United-Carr GmbH & Co KG, 6753 Enkenbach-Alsenborn Vorrichtung zum Spannen mindestens eines um mindestens einen rohrförmigen Körper geschlungenen profilierten Bandelements
US7086426B2 (en) 2003-07-07 2006-08-08 Thomas & Betts International, Inc. Ergonomic cable tie installation tool
ES2330343T3 (es) 2004-02-13 2009-12-09 THOMAS & BETTS INTERNATIONAL, INC. (A CORPORATION OF THE STATE OF DELAWARE) Referencia cruzada a la solicitud asociada.
CN100435998C (zh) * 2004-03-19 2008-11-26 托马斯及贝茨国际股份有限公司 带有可变扳机连杆机构的电缆系带工具
SE527816C8 (sv) 2004-03-19 2006-09-12 Mekanism med varabel transmission
EP1742750B1 (en) * 2004-03-19 2007-09-05 Thomas & Betts International, Inc. Cable tie tool having variable trigger linkage
EP2830512B1 (en) 2012-03-28 2016-08-03 Synthes GmbH Bone fixation member systems
CN105101893B (zh) 2013-01-25 2019-04-26 德普伊新特斯产品公司 用于植入物和植入物组件的顶盖
US9603646B2 (en) 2014-05-30 2017-03-28 DePuy Synthes Products, Inc. Bone fixation assembly
EP3230167B1 (en) * 2014-12-12 2020-03-25 Hellermanntyton Corporation Compound tension and calibration mechanism for cable tie tensioning and cut-off tool
CN114671062B (zh) * 2020-12-24 2024-03-29 华伟实业股份有限公司 束带束紧工具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332454A (en) * 1965-02-24 1967-07-25 Thomas & Betts Corp Tool
US3661187A (en) * 1969-07-28 1972-05-09 Panduit Corp Strap-tensioning and severing tool
US3782426A (en) * 1972-02-07 1974-01-01 Itt Strap tensioning and cut-off tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5915425A (en) * 1996-08-28 1999-06-29 Thomas & Betts Corporation Cable tie installation tool
EP1231140A1 (de) 2001-02-12 2002-08-14 Hellermann Tyton GmbH Bindewerkzeug
US6615879B2 (en) 2001-02-12 2003-09-09 Hellermann Tyton Gmbh Binding tool
CN100515865C (zh) * 2004-02-13 2009-07-22 托马斯及贝茨国际股份有限公司 电缆扎带工具的张紧和防反冲机构
CN103458813A (zh) * 2011-02-02 2013-12-18 新特斯有限责任公司 骨固定组件
CN103458813B (zh) * 2011-02-02 2016-02-10 新特斯有限责任公司 骨固定组件
US11730527B2 (en) 2019-11-04 2023-08-22 Stryker European Operations Limited Surgical instrument for tightening a bone fixation member around bone

Also Published As

Publication number Publication date
DE3861750D1 (de) 1991-03-14
DE8709487U1 (de) 1987-10-15
EP0299387A1 (de) 1989-01-18

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