EP0616873A1 - Screwdriving tool for screws connected by a strip - Google Patents

Screwdriving tool for screws connected by a strip Download PDF

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Publication number
EP0616873A1
EP0616873A1 EP94104059A EP94104059A EP0616873A1 EP 0616873 A1 EP0616873 A1 EP 0616873A1 EP 94104059 A EP94104059 A EP 94104059A EP 94104059 A EP94104059 A EP 94104059A EP 0616873 A1 EP0616873 A1 EP 0616873A1
Authority
EP
European Patent Office
Prior art keywords
screw
screwing device
lifting
strip
screwed
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
EP94104059A
Other languages
German (de)
French (fr)
Other versions
EP0616873B1 (en
Inventor
Martin Reusch
Günter Haas
Erich Skuthan
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.)
Karl M Reich Maschinenfabrik GmbH
Original Assignee
Karl M Reich Maschinenfabrik 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 Karl M Reich Maschinenfabrik GmbH filed Critical Karl M Reich Maschinenfabrik GmbH
Publication of EP0616873A1 publication Critical patent/EP0616873A1/en
Application granted granted Critical
Publication of EP0616873B1 publication Critical patent/EP0616873B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B25B23/045—Arrangements for handling screws or nuts for feeding screws or nuts using disposable strips or discs carrying the screws or nuts

Definitions

  • the invention relates to a screwdriver for taped screws according to the preamble of claim 1.
  • the screw strip is moved in the direction of the screw blade by means of a conveying device and during the screwing-in process the screw to be screwed in is released from the connecting belt, the loop being torn open.
  • parts of the connecting belt can get between the screw head and the workpiece surface when screwing in, which is particularly disruptive for sensitive workpieces.
  • the object of the present invention is therefore to provide a screwing device of the type mentioned in the introduction, in which the screw is separated from the connecting belt safely and without residues during the screwing-in process.
  • the complete separation of the connecting belt from the screw to be screwed in by the lifting element according to the invention ensures that the screw is screwed into the workpiece unimpeded and without entrainment of parts of the connecting belt.
  • a guide channel 11 is provided for the screw strip 2, which opens into a guide bore 12. This is aligned with a bearing bore 13 for the screw blade 14, so that the first screw 3 'of screw strip 2 is also aligned with the screw blade 14.
  • the screw blade 14 can be driven by an indicated electric motor 15, when the screw 3 'is screwed into the workpiece 16, the shaft 8 of the screw 3' is guided by an elastic centering funnel 17.
  • a lifting member 18 is pivotally mounted in the bearing body 1 at the end of the guide channel 11, its pivot axis 19 being arranged inclined to the guide bore 12.
  • a form spring 20 presses it against a stop surface 21 of the bearing body 1.
  • the lifting element 18 is essentially angled, the free holding back 6 ′ of the connecting belt 5 being pushed in front of a leg 22 of the lifting element 18. This also has an inclined and curved contact surface 23 directed against the guide channel 11 and a prismatic centering surface 24 parallel to the guide bore 12.
  • the function of the lifting element 18 is assumed to be in its rest position shown in FIGS. 1 and 3. After switching on the electric motor 15, it sets the screw blade 14 in rotation and this is moved in the direction of the workpiece 16 by pressing the electric motor 15 in the bearing body. After the head 9 of the screw 3 'has been reached, this is also rotated, the connecting belt 5 being displaced by the thread of the shaft 8 shown in the loop 7 against the direction of advance of the screw 3 becomes. It is prevented from further movement by a stop surface 25 of the lifting element 18, so that the loop 7 tears open and the connection between the screw 3 'and the connecting belt 5 is released.
  • the sealing disk 10 now touches the contact surface 23 of the lifting element 18 and pivots it clockwise, it reaching the lifting position shown in FIG. 4.
  • the leg 22 of the lifting element 18 takes the free end 6 'of the holding back 6 and pivots it out of the screw-in area of the screw 3', so that it can be screwed into the work piece 16, unhindered and guided by the centering funnel 17, perpendicular to the surface of the latter.
  • the conveying device 4 is tensioned in a known manner, so that after the return of the screw blade 14 into its rest position, the lifting element 18 returns to its rest position under the action of the form spring 20 and the screw strip 2 is displaced in the direction of the guide bore 12 until the next screw 3 is aligned with the screw blade 14, its shaft 8 striking against the centering surface 24 of the lifting element 18.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Transmission Devices (AREA)

Abstract

In the case of a screwdriving tool for screws (3) connected by a strip, a movable lifting-off member (18) is provided in the guiding channel (11) of bearing body (1) in the region of the guiding bore (12) for the screwdriving blade (14), in the case of the screw strip (2) the lifting-off member lifting off the connecting band (5) from the screw (3') to be screwed in. The latter can thus be screwed into the workpiece (16) unhindered, which is advantageous especially in the case of screws (3) with large head diameter or with sealing washers (10) placed underneath. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Schraubgerät für gegurtete Schrauben gemäß Oberbegriff von Anspruch 1.The invention relates to a screwdriver for taped screws according to the preamble of claim 1.

Aus der DE-OS 26 41 828 ist es bekannt, gegurtete Schrauben mit einem tragbaren und mit einem Magazin versehenen Schraubgerät zu verarbeiten. Zum Halten der Schrauben dient ein Verbindungsgurt aus Kunststoff, wobei die Schäfte der Schrauben von Schlingen des Verbindungsgurts umfasst werden.From DE-OS 26 41 828 it is known to process taped screws with a portable screwing device provided with a magazine. A plastic connecting strap is used to hold the screws, the shafts of the screws being encompassed by loops of the connecting strap.

Der Schraubenstreifen wird mittels einer Fördervorrichtung in Richtung Schraubklinge bewegt und beim Einschraubvorgang löst sich die einzuschraubende Schraube vom Verbindungsgurt, wobei die Schlinge aufgerissen wird. Dabei können jedoch Teile des Verbindungsgurts beim Einschrauben zwischen Schraubenkopf und Werkstückoberfläche gelangen, was sich insbesondere bei empfindlichen Werkstücken sehr störend bemerkbar macht.The screw strip is moved in the direction of the screw blade by means of a conveying device and during the screwing-in process the screw to be screwed in is released from the connecting belt, the loop being torn open. However, parts of the connecting belt can get between the screw head and the workpiece surface when screwing in, which is particularly disruptive for sensitive workpieces.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung eines Schraubgeräts der eingangs genannten Art, bei dem die Schraube beim Einschraubvorgang sicher und ohne Rückstände vom Verbindungsgurt getrennt wird.The object of the present invention is therefore to provide a screwing device of the type mentioned in the introduction, in which the screw is separated from the connecting belt safely and without residues during the screwing-in process.

Diese Aufgabe wird erfindungsgemäß durch das im kennzeichnenden Teil des Anspruchs 1 angegebene Merkmal gelöst.This object is achieved by the feature specified in the characterizing part of claim 1.

Durch die vollständige Trennung des Verbindungsgurts von der einzuschraubenden Schraube durch das erfindungsgemäße Abhebeorgan wird sicher gewährleistet, daß die Schraube ungehindert und ohne Mitnahme von Teilen des Verbindungsgurts ins Werkstück eingeshraubt wird.The complete separation of the connecting belt from the screw to be screwed in by the lifting element according to the invention ensures that the screw is screwed into the workpiece unimpeded and without entrainment of parts of the connecting belt.

Dies wirkt sich besonders vorteilhaft bei Schrauben mit großen Kopfdurchmessern bzw mit untergelegten Dichtscheiben aus, wobei das Abhebeorgan den Verbindungsgurt soweit aus dem Einschraubweg der Schraube herausschwenkt, daß diese beim Einschrauben nicht behindert wird. Damit ist ein einwandfreies und gerades Einschrauben gewährleistet.This is particularly advantageous in the case of screws with large head diameters or with underlying sealing washers, the lifting element pivoting the connecting belt out of the screw-in path of the screw to such an extent that it is not hindered when screwing in. This guarantees a perfect and straight screwing.

Durch die Unteransprüche sind vorteilhafte Weiterbildungen der Erfindung gekennzeichnet.Advantageous developments of the invention are characterized by the subclaims.

Im Folgenden ist ein Ausführungsbeispiel der Erfindung unter Bezug nahme auf die Zeichnungen näher beschrieben.An exemplary embodiment of the invention is described in more detail below with reference to the drawings.

Es zeigen:

Fig. 1
Lagerkörper eines Schraubgeräts, von der Seite, teilweise geschnitten
Fig. 2
Schnitt nach Linie II - II in Fig. 1
Fig. 3
Schnitt nach Linie III - III in Fig. 1, Abhebeorgan in Ruhestellung
Fig. 4
wie Fig. 3, Abhebeorgan in Abhebestellung
Fig. 1 zeigt den Lagerkörper 1 eines Schraubgeräts, dem aus einem nicht dargestellten Magazin die zu einem Schraubenstreifen 2 verbundene Schrauben 3 mittels einer Fördervorrichtung 4 zugeführt werden. Zum Halten der Schrauben 3' dient ein Verbindungsgurt 5 aus Kunststoff (siehe auch Fig. 3), dessen Halterücken 6 mit Schlingen 7 versehen ist, die den Schaft 8 von Schraube 3 umfassen. Diese Schraube 3 ist weiterhin mit einer unter ihrem Kopf 9 aufgesteckten Dichtscheibe 10 versehen, deren Durchmesser wesentlich größer ist als der Durchmesser von Schaft 8.Show it:
Fig. 1
Bearing body of a screwdriver, partially cut from the side
Fig. 2
Section along line II - II in Fig. 1
Fig. 3
Section along line III - III in Fig. 1, lifting element in the rest position
Fig. 4
as Fig. 3, lifting element in the lifting position
1 shows the bearing body 1 of a screwing device, to which the screws 3 connected to a screw strip 2 are fed from a magazine (not shown) by means of a conveying device 4. A plastic connecting strap 5 is used to hold the screws 3 '(see also FIG. 3), the holding back 6 of which is provided with loops 7 which secure the shaft 8 of the screw 3 include. This screw 3 is further provided with a sealing washer 10 which is plugged under its head 9 and whose diameter is substantially larger than the diameter of the shaft 8.

Im Lagerkörper 1 ist ein Führungskanal 11 für den Schraubenstreifen 2 vorgesehen, der in eine Führungsbohrung 12 mündet. Diese fluchtet mit einer Lagerbohrung 13 für die Schraubklinge 14, so daß die erste Schraube 3' von Schraubenstreifen 2 ebenfalls mit der Schraubklinge 14 fluchtet.In the bearing body 1, a guide channel 11 is provided for the screw strip 2, which opens into a guide bore 12. This is aligned with a bearing bore 13 for the screw blade 14, so that the first screw 3 'of screw strip 2 is also aligned with the screw blade 14.

Die Schraubklinge 14 ist durch einen angedeuteten Elektromotor 15 antreibbar, beim Einschrauben der Schraube 3' in das Werkstück 16 wird der Schaft 8 der Schraube 3' von einem elastischen Zentriertrichter 17 geführt.The screw blade 14 can be driven by an indicated electric motor 15, when the screw 3 'is screwed into the workpiece 16, the shaft 8 of the screw 3' is guided by an elastic centering funnel 17.

Wie insbesondere Fig. 2 und 3 zeigen, ist im Lagerkörper 1 am Ende von Führungskanal 11 ein Abhebeorgan 18 schwenkbar gelagert, wobei seine Schwenkachse 19 zur Führungsbohrung 12 geneigt angeordnet ist. Bei der in Fig. 3 dargestellten Ruhestellung von Abhebeorgan 18 drückt eine Formfeder 20 dieses gegen eine Anschlagfläche 21 von Lagerkörper 1.2 and 3 in particular, a lifting member 18 is pivotally mounted in the bearing body 1 at the end of the guide channel 11, its pivot axis 19 being arranged inclined to the guide bore 12. In the rest position of the lifting element 18 shown in FIG. 3, a form spring 20 presses it against a stop surface 21 of the bearing body 1.

Das Abhebeorgan 18 ist im wesentlichen winkelförmig ausgebildet, wobei der freie Halterücken 6' von Verbindungsgurt 5 sich vor einen Schenkel 22 von Abhebeorgan 18 schiebt. Dieses weist außerdem eine gegen den Führungskanal 11 gerichtete geneigte und gewölbte Kontaktfläche 23 sowie eine zur Führungsbohrung 12 parallele, prismatische Zentrierfläche 24 auf.The lifting element 18 is essentially angled, the free holding back 6 ′ of the connecting belt 5 being pushed in front of a leg 22 of the lifting element 18. This also has an inclined and curved contact surface 23 directed against the guide channel 11 and a prismatic centering surface 24 parallel to the guide bore 12.

Zur Funktion des Abhebeorgans 18 sei von seiner in Fig. 1 und 3 dargestellten Ruhestellung ausgegangen. Nach dem Einschalten von Elektromotor 15 setzt dieser die Schraubklinge 14 in Drehung und diese wird durch Andrücken des Elektromotors 15 im Lagerkörper in Richtung Werkstück 16 verschoben. Nach Erreichen von Kopf 9 von Schraube 3' wird diese ebenfalls in Drehung versetzt, wobei der Verbindungsgurt 5 durch das in der Schlinge 7 abgebildete Gewinde von Schaft 8 entgegen der Vorschubrichtung der Schraube 3 verschoben wird. Er wird von einer Anschlagfläche 25 des Abhebeorgans 18 an einer Weiterbewegung gehindert, so daß die Schlinge 7 aufreißt und sich die Verbindung zwischen Schraube 3' und Verbindungsgurt 5 löst.The function of the lifting element 18 is assumed to be in its rest position shown in FIGS. 1 and 3. After switching on the electric motor 15, it sets the screw blade 14 in rotation and this is moved in the direction of the workpiece 16 by pressing the electric motor 15 in the bearing body. After the head 9 of the screw 3 'has been reached, this is also rotated, the connecting belt 5 being displaced by the thread of the shaft 8 shown in the loop 7 against the direction of advance of the screw 3 becomes. It is prevented from further movement by a stop surface 25 of the lifting element 18, so that the loop 7 tears open and the connection between the screw 3 'and the connecting belt 5 is released.

Die Dichtscheibe 10 berührt jetzt die Kontaktfläche 23 von Abhebeorgan 18 und verschwenkt dieses im Uhrzeigersinn, wobei es in die in Fig. 4 dargestellte Abhebestellung gelangt. Damit nimmt der Schenkel 22 von Abhebeorgan 18 das freie Ende 6' von Halterücken 6 mit und verschwenkt es aus dem Einschraubbereich von Schraube 3', so daß diese unbehindert und vom Zentriertrichter 17 geführt senkrecht zur Oberfläche von Werkstück 16 in dieses eingeschraubt werden kann.The sealing disk 10 now touches the contact surface 23 of the lifting element 18 and pivots it clockwise, it reaching the lifting position shown in FIG. 4. Thus, the leg 22 of the lifting element 18 takes the free end 6 'of the holding back 6 and pivots it out of the screw-in area of the screw 3', so that it can be screwed into the work piece 16, unhindered and guided by the centering funnel 17, perpendicular to the surface of the latter.

Beim Einschraubvorgang wird in bekannter Weise die Fördervorrichtung 4 gespannt, so daß nach dem Zurückführen von Schraubklinge 14 in ihre Ruhestellung das Abhebeorgan 18 unter Wirkung der Formfeder 20 in seine Ruhestellung zurückkehrt und der Schraubenstreifen 2 in Richtung Führungsbohrung 12 verschoben wird, bis die nächste Schraube 3 mit der Schraubklinge 14 fluchtet, wobei ihr Schaft 8 an der Zentrierfläche 24 von Abhebeorgan 18 anschlägt.During the screwing-in process, the conveying device 4 is tensioned in a known manner, so that after the return of the screw blade 14 into its rest position, the lifting element 18 returns to its rest position under the action of the form spring 20 and the screw strip 2 is displaced in the direction of the guide bore 12 until the next screw 3 is aligned with the screw blade 14, its shaft 8 striking against the centering surface 24 of the lifting element 18.

Claims (8)

Schraubgerät für gegurtete Schrauben mit einem Lagerkörper, in dem eine antreibbare Schraubklinge verschiebbar gelagert ist, mit einem dazu senkrechten Führungskanal für die mit mindestens einem Verbindungsgurt zu einem Schraubenstreifen verbundene Schrauben, mit einer Fördervorrichtung für den Schraubenstreifen und mit einer Führungsbohrung für die einzuschraubende Schraube, dadurch gekennzeichnet, daß im Führungskanal (11) im Bereich der Führunsbohrung (12) ein bewegbares Abhebeorgan (18) vorgesehen ist, das den Verbindungsgurt (5) von der einzuschraubenden Schraube (3') abhebt.Screwdriver for taped screws with a bearing body in which a drivable screw blade is slidably mounted, with a guide channel perpendicular thereto for the screws connected to at least one connecting belt to form a screw strip, with a conveying device for the screw strip and with a guide hole for the screw to be screwed in, thereby characterized in that a movable lifting element (18) is provided in the guide channel (11) in the region of the guide bore (12) and lifts the connecting belt (5) from the screw (3 ') to be screwed in. Schraubgerät nach Anspruch 1, dadurch gekennzeichnet, daß das Abhebeorgan (18) mit dem freien Ende des Verbindungsgurts (5) zusammenwirkt.Screwing device according to claim 1, characterized in that the lifting member (18) cooperates with the free end of the connecting belt (5). Schraubgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Abhebeorgan (18) durch die einzuschraubende Schraube (3') betätigbar ist.Screwing device according to claim 1 or 2, characterized in that the lifting member (18) can be actuated by the screw (3 ') to be screwed in. Schraubgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Abhebeorgan (18) schwenkbar im Lagerkörper (1) gelagert ist.Screwing device according to one of claims 1 to 3, characterized in that the lifting member (18) is pivotally mounted in the bearing body (1). Schraubgerät nach Anspruch 4, dadurch gekennzeichnet, daß die Schwenkachse (19) des Abhebeorgans (18) geneigt gegen die Führungsbohrung (12) angeordnet ist.Screwing device according to claim 4, characterized in that the pivot axis (19) of the lifting element (18) is arranged inclined against the guide bore (12). Schraubgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Abhebeorgan (18) eine gegen die Schraubklinge (14) gerichtete, geneigte Kontaktfläche (23) aufweist.Screwing device according to one of claims 1 to 5, characterized in that the lifting member (18) has an inclined contact surface (23) directed against the screwing blade (14). Schraubgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Abhebeorgan (18) eine gegen den Führungskanal (11) gerichtete, parallel zur Führungs bohrung (12) verlaufende Zentrierfläche (24) für die Schraube (3') aufweist.Screwing device according to one of claims 1 to 6, characterized in that the lifting member (18) has a centering surface (24) for the screw (3 ') directed against the guide channel (11) and parallel to the guide bore (12). Schraubgerät nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, daß die Schraube (3) im Kopfabschnitt (9,10) einen gegenüber dem Schaft (8) wesentlich grösseren Durchmesser aufweist und daß das Abhebeorgan (18) durch den Kopfabschnitt (9,10) betätigbar ist.Screwing device according to one of claims 3 to 7, characterized in that the screw (3) in the head section (9, 10) has a substantially larger diameter than the shaft (8) and that the lifting element (18) through the head section (9, 10) ) can be actuated.
EP94104059A 1993-03-20 1994-03-16 Screwdriving tool for screws connected by a strip Expired - Lifetime EP0616873B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308998 1993-03-20
DE4308998A DE4308998A1 (en) 1993-03-20 1993-03-20 Screwdriver for taped screws

Publications (2)

Publication Number Publication Date
EP0616873A1 true EP0616873A1 (en) 1994-09-28
EP0616873B1 EP0616873B1 (en) 1996-07-17

Family

ID=6483347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94104059A Expired - Lifetime EP0616873B1 (en) 1993-03-20 1994-03-16 Screwdriving tool for screws connected by a strip

Country Status (4)

Country Link
US (1) US5433129A (en)
EP (1) EP0616873B1 (en)
JP (1) JPH06297350A (en)
DE (2) DE4308998A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890405A (en) * 1996-09-11 1999-04-06 Becker; Burkhard Automated screw driving device
JP3333114B2 (en) * 1997-06-30 2002-10-07 株式会社ムロコーポレーション Continuous screw tightening machine
US7603758B2 (en) * 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
US6601480B1 (en) * 2000-09-15 2003-08-05 G. Lyle Habermehl Autofeed screwdriver for screws with flat head bottoms
US7100685B2 (en) * 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
EP1501645A4 (en) 2002-04-15 2006-04-26 Enventure Global Technology Protective sleeve for threaded connections for expandable liner hanger
GB2408277B (en) * 2002-07-19 2007-01-10 Enventure Global Technology Protective sleeve for threaded connections for expandable liner hanger
GB2410280B (en) * 2002-09-20 2007-04-04 Enventure Global Technology Self-lubricating expansion mandrel for expandable tubular
DE102018131945A1 (en) * 2018-12-12 2020-06-18 Airbus Operations Gmbh Screw feeder for a screwdriver

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1923712A1 (en) * 1967-04-07 1970-11-19 Reich Maschf Gmbh Karl Driver for fasteners fed in a magazine strip
US3698599A (en) * 1971-02-19 1972-10-17 Atlas Copco Ab Feed to driving tool having band held screws
DE2641828A1 (en) * 1976-09-17 1978-03-23 Reich Maschf Gmbh Karl DRIVING DEVICE FOR SCREWS OR DGL CONNECTED TO A STRIP.
US4367837A (en) * 1980-04-25 1983-01-11 Manino Anthony P Tape magazine feed apparatus for head driven fasteners
EP0386950A1 (en) * 1989-03-06 1990-09-12 Masaki Kawashima Fastener driver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1923712A1 (en) * 1967-04-07 1970-11-19 Reich Maschf Gmbh Karl Driver for fasteners fed in a magazine strip
US3698599A (en) * 1971-02-19 1972-10-17 Atlas Copco Ab Feed to driving tool having band held screws
DE2641828A1 (en) * 1976-09-17 1978-03-23 Reich Maschf Gmbh Karl DRIVING DEVICE FOR SCREWS OR DGL CONNECTED TO A STRIP.
US4367837A (en) * 1980-04-25 1983-01-11 Manino Anthony P Tape magazine feed apparatus for head driven fasteners
EP0386950A1 (en) * 1989-03-06 1990-09-12 Masaki Kawashima Fastener driver

Also Published As

Publication number Publication date
US5433129A (en) 1995-07-18
DE59400422D1 (en) 1996-08-22
DE4308998A1 (en) 1994-09-22
EP0616873B1 (en) 1996-07-17
JPH06297350A (en) 1994-10-25

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