EP0008749A1 - Fastener-driving apparatus - Google Patents

Fastener-driving apparatus Download PDF

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Publication number
EP0008749A1
EP0008749A1 EP79103098A EP79103098A EP0008749A1 EP 0008749 A1 EP0008749 A1 EP 0008749A1 EP 79103098 A EP79103098 A EP 79103098A EP 79103098 A EP79103098 A EP 79103098A EP 0008749 A1 EP0008749 A1 EP 0008749A1
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EP
European Patent Office
Prior art keywords
magazine
driving
compartment
driving tool
tool according
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
EP79103098A
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German (de)
French (fr)
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EP0008749B1 (en
Inventor
Werner Maurer
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.)
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Application filed by Karl M Reich Maschinenfabrik GmbH filed Critical Karl M Reich Maschinenfabrik GmbH
Priority to AT79103098T priority Critical patent/ATE176T1/en
Publication of EP0008749A1 publication Critical patent/EP0008749A1/en
Application granted granted Critical
Publication of EP0008749B1 publication Critical patent/EP0008749B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/001—Nail feeding devices
    • B25C1/005—Nail feeding devices for rows of contiguous nails

Definitions

  • the present invention relates to a drive-in device for a fastener provided with a shaft, with an ejection channel in which a power-driven tappet is movably guided into a rest position and a drive-in position, with a magazine opening into the ejection channel and with a compartment device arranged between the ejection channel and magazine.
  • Driving tools of this type are used to process loose fasteners, such as nails, screws, pins, etc., which are provided in a magazine connected to the driving tool.
  • loose fasteners such as nails, screws, pins, etc.
  • From DE-OS 25 11 023 it is known to arrange the magazine so inclined against the ejection channel that the nails get into the ejection channel by gravity.
  • the central plane of the magazine also intersects the longitudinal axis of the ejection channel, so that the first nail cannot initially get into it.
  • This first nail is only pivoted in this way by a compartment plate actuated by a compressed air piston. that it gets into the ejection channel and is then driven into the workpiece by the driving plunger. Partitioning and feeding of the first nail, as well as the stroke of the plunger are achieved by a compressed air sequence control with several valve functions, which take place after the trigger valve is actuated.
  • the object of the present invention is therefore to provide a driving tool of the type mentioned at the outset which enables a high impact rate with as few valve functions as possible and can be used in any position.
  • This object is achieved according to the invention in that a compartment member which engages between the shafts in a locked position and releases them in a release position and a holding device arranged on the ejection channel are provided.
  • the interlocking element engaging between the shafts ensures that the first fastener, even if it is of poor quality, arrives safely in the discharge channel. It is held there by a holding device so that it cannot fall out of the ejection channel even when the driving tool is lifted.
  • This enables the use of a simple control for the compartment piston connected to the compartment member, which can advantageously be actuated by the return stroke compressed air for the return stroke of the drive piston connected to the drive tappet.
  • a direct connection Between the air reservoir for the return stroke compressed air and the cylinder for the compartment piston, any further valves are superfluous. The function of the driving tool according to the invention is therefore quick and safe.
  • the feature according to the invention offers the possibility of also using the driving tool to process fasteners which form a fastener strip, e.g. a nail or screw strip.
  • both the fasteners provided loosely in the magazine and the fasteners connected to form a fastener strip are fed to the ejection channel by a magazine slide connected by a spring.
  • the driving tool can therefore be used universally both for loose fasteners and for fastener strips and can also be operated properly in all desired directions, i.e. also upwards.
  • a cylinder 2 is arranged in a housing 1, in which a pneumatic piston 3 is slidably mounted.
  • Percussion piston 3 is held in its rest position shown in Fig. 1 by a rubber-elastic locking device 4.
  • a connecting hose 5 and the hollow handle 6 of housing 1 serve to supply the compressed air from a compressed air source, not shown.
  • a trigger valve 7 can only be actuated if both a trigger 8 and a workpiece switch 43 are moved from their rest position into their working position.
  • a pipe slide 9 which is arranged concentrically with the cylinder 2, is controlled in a known manner so that compressed air can get into the cylinder 2 via the percussion piston 3 and move it into its working position shown in FIG .
  • an air reservoir 10 is provided which, during the working stroke, fills with compressed air via a bore 11 in the cylinder 2, which then, after venting the cylinder space located above the percussion piston 3, via the bores 12 under the percussion piston 3 arrives and moves it back to its rest position.
  • a cylinder base 13 is connected to the housing 1 by screws and has an ejection channel 14 in which a driving plunger 15 connected to the percussion piston 3 is movably mounted.
  • the ejection channel 14 is connected to a guide slot 16 in which a guide shaft 17 of a magazine 18 connected to the cylinder base 13 and handle 6 opens.
  • the central plane of the guide shaft 17 runs through the longitudinal axis of the discharge channel 14.
  • Loose nails 19 are provided in the magazine 18, the shafts 20 of which are guided in the guide shaft 17 and the heads 21 of which rest on two opposite bearing surfaces 22 (see also FIG. 5) which are inclined to the longitudinal axis of the ejection channel 14. 4 shows, the guide shaft 17 is open to the rear.
  • FIG. 2 shows a compartment member 23 tapering towards the front, which in the locked position shown in FIG. 2 engages in the guide slot 16 in such a way that it separates the discharge channel 14 from the guide shaft 17.
  • Compartment member 23 is connected to a compartment piston 24 which is movably mounted in a compartment cylinder 25 and is pressed into its locked position by a compression spring 26.
  • the cylinder space 27 is connected to the air reservoir 10 through connecting bores 28.
  • the compartment cylinder 25 is closed by a screw plug 29 in which a guide pin 30 connected to the compartment piston 24 is mounted. This is provided with an annular groove 31 into which a pawl 32 can be inserted. For this purpose, this is pivotally attached to screw 29 by a screw 33 (see also FIG. 3).
  • a holding device 34 in the form of two permanent magnets is provided in the cylinder base 13, which act in the ejection channel 14 and hold a first nail 35 there in the rest position of the tappet 15.
  • a cam that resiliently engages in the ejection channel 14 or resilient guide jaws can also be provided as the holding device, which, however, since they are known, are not shown in detail here.
  • Exhaust is in the cylinder base 13 above the holding device 34 bores 36 are provided which, after the return stroke of percussion pistons 3, serve to discharge the remaining return stroke compressed air, which could otherwise blow the first nail 35 out of the discharge channel 14.
  • a magazine slide 37 movably mounted in the guide shaft 17 is drawn in dash-dotted lines, to which a roller spring 39, which can be rolled up in the magazine 18, is fastened with a rivet 38.
  • This roller spring 39 acts on the magazine slide 37 in the direction of the ejection channel 14. With a handle 40 connected to the magazine slide 37, this can be moved towards the end of magazine 18 and hung there in a side pocket 41 (see FIG. 4) so that the Guide shaft 17 is open to the rear.
  • the rear open end of the guide shaft 17 of its magazine 18 is first coupled to a dispenser device, not shown, in which the nails are sorted and made available for hanging on the heads.
  • a dispenser device not shown
  • the nails are sorted and made available for hanging on the heads.
  • nails with twisted shafts, screw nails, nail screws, screws or the like can of course also be processed.
  • the nails 19 slide on the heads 21 hanging in the guide shaft 17 under the action of gravity to the compartment member 23.
  • the magazine slide 37 can now be lifted out of the pocket 41 and inserted into the guide shaft 17, where it holds the nails 19 presses in the direction of the ejection channel 14 under the action of the roller spring 39.
  • Compartment member 23 now releases the guide slot 16, in which there are already nails 19, of which the first nail 35 is pressed in the direction of the ejection channel 14 until its head 21 strikes the driving plunger 15. Under the action of the spring-loaded magazine slide 37, however, it assumes with its shaft 20 a position directed away from the discharge channel 14 to the rear.
  • the pawl 32 (FIGS. 2 and 3) must be pivoted clockwise so that it engages in the annular groove 31 of the guide pin 30.
  • Guide shaft 17 is now permanently open against the discharge channel 14 and it is possible to process nails connected to strips in the known manner.
  • the compartment organ 23 can also be actuated in such a way that it is mechanically coupled to the impact ram 15 such that it moves the compartment organ 23 into the release position in its rubbing-in position.
  • the magazine 18 is connected to the compartment member 23 with a screwing device known per se, loose screws stored in the magazine 18 can be processed in a simple manner.
  • the compartment member 23 can be actuated in such a way that it is displaced into its release position by the drive part of the screwing device when this drive part is moved against the workpiece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Road Paving Structures (AREA)

Abstract

The present driver for fasteners such as nails, screws and the like is provided with a separator member operatively located between the ejector channel and a fastener supply magazine. The separator member takes up a fastener arresting position in which the separator member reaches between the shafts of two fasteners and a retracted position in which the separator member releases a fastener for movement into the ejector channel. The separator member cooperates with a holding device which holds a fastener in the ejector channel after release by the separator member and prior to the driving stroke. The holding device may comprise two permanent magnets.

Description

Die vorliegende Erfindung betrifft ein Eintreibgerit fUr mit einem Schaft versehene Befestiger mit einem Ausstoßkanal, in dem ein kraftbetriebener Eintreibstößel in eine Ruhestellung und eine Eintreibstellung bewegbar geführt ist, mit einem in den Ausstoßkanal mUndenden Magazin und mit einer zwischen Ausstoßkanal und Magazin angeordneten Abteilvorrichtung.The present invention relates to a drive-in device for a fastener provided with a shaft, with an ejection channel in which a power-driven tappet is movably guided into a rest position and a drive-in position, with a magazine opening into the ejection channel and with a compartment device arranged between the ejection channel and magazine.

Eintreibgeräte dieser Art dienen der Verarbeitung von losen Befestigern, wie Nägeln, Schrauben, Stiften usw., die in einem mit dem Eintreibgerät verbundenen Magazin bereitgestellt werden. Aus der DE-OS 25 11 023 ist es dazu bekannt, das Magazin so gegen den Ausstoßkanal geneigt anzuordnen, daß die Nägel durch Schwerkraft in den Ausstoßkanal gelangen. Die Mittelebene des Magazins schneidet außerdem die Längsachse des Ausstoßkanals, so daß der erste Nagel zunächst nicht in diesen gelangen kann. Erst durch eine von einem Druckluftkolben betätigte Abteilplatte wird dieser erste Nagel so verschwenkt. daß er in den Ausstoßkanal gelangt und unmittelbar anschließend vom Eintreibstößel ins Werkstück eingetrieben wird. Abteilen und ZufUhren des ersten Nagels, sowie der Schlaghub des Eintreibstößels werden durch eine Druckluft-Folgesteuerung mit mehreren Ventilfunktionen erzielt, die nach Betätigung des Abzugsventils ablaufen.Driving tools of this type are used to process loose fasteners, such as nails, screws, pins, etc., which are provided in a magazine connected to the driving tool. From DE-OS 25 11 023 it is known to arrange the magazine so inclined against the ejection channel that the nails get into the ejection channel by gravity. The central plane of the magazine also intersects the longitudinal axis of the ejection channel, so that the first nail cannot initially get into it. This first nail is only pivoted in this way by a compartment plate actuated by a compressed air piston. that it gets into the ejection channel and is then driven into the workpiece by the driving plunger. Partitioning and feeding of the first nail, as well as the stroke of the plunger are achieved by a compressed air sequence control with several valve functions, which take place after the trigger valve is actuated.

Bei diesem bekannten Eintreibgerät läßt sich jedoch infolge der mehrstufigen Druckluft-Folgesteuerung mit den dabei notwendigen Ventil-und Kolbenbewegungen nur eine verhältnismäßig langsame Schlagfolge erzielen, die für eine rationelle Fertigung nachteilig ist. Sind die Ventile verschmutzt oder ist das Schmieröl wegen Kälte zähflüssig, dann wird die Schlagfolge noch mehr verzögert. Nachteilig ist fernerhin der Preis- und Gewichtsaufwand für die zusätzlichen Ventile und Kolben, sowie der Preisaufwand für Nägel bester Qualität, die für eine einwandfreie Funktion der Zuführung durch Verschwenken notwendig sind. Wegen der ZufUhrung der Nägel durch Schwerkraft ist es auch nicht möglich, mit dem bekannten Eintreibgerät nach oben zu nageln.In this known driving tool, however, due to the multi-stage compressed air sequence control with the necessary valve and piston movements, only a relatively slow stroke sequence can be achieved, which is disadvantageous for efficient production. If the valves are dirty or the lubricating oil is viscous due to the cold, the impact sequence is delayed even more. A further disadvantage is the cost and weight for the additional valves and pistons, as well as the cost of nails of the best quality, which are necessary for the feeder to function properly by pivoting. Because of the feeding of the nails by gravity, it is also not possible to nail up with the known driving tool.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung eines Eintreibgeräts der eingangs genannten Art, das mit möglichst wenig Ventilfunktionen eine hohe Schlagfolge ermöglicht und in jeder Lage verwendbar ist.The object of the present invention is therefore to provide a driving tool of the type mentioned at the outset which enables a high impact rate with as few valve functions as possible and can be used in any position.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein in einer Sperrstellung zwischen die Schäfte eingreifendes und in einer Freigabestellung diese freigebendes Abteilorgan und eineam Ausstoßkanal angeordnete Haltevorrichtung vorgesehen sind.This object is achieved according to the invention in that a compartment member which engages between the shafts in a locked position and releases them in a release position and a holding device arranged on the ejection channel are provided.

Durch das zwischen die Schäfte eingreifende Abteilorgan ist gewährleistet, daß der erste Befestiger,auch wenn er von minderer Qualität ist, sicher in den Ausstoßkanal gelangt. Er wird dort von einer Haltevorrichtung so festgehalten, daß er auch beim Anheben des Eintreibgerätes nicht aus dem Ausstoßkanal herausfallen kann. Dies ermöglichtdie Verwendung einer einfachen Steuerung für den mit dem Abteilorgan verbundenen Abteilkolben, der in vorteilhafter Weise durch die Ruckhub-Druckluft für den RUckhub des mit dem Eintreibstößel verbundenen Eintreibkolbens betätigt werden kann. Eine direkte Verbindung zwischen dem Luftspeicher fUr die RUckhub-Druckluft und dem Zylinder für den Abteilkolben macht jede weiteren Ventile UberflUssig. Die Funktion des erfindungsgemäßen Eintreibgerätes ist daher schnell und sicher.The interlocking element engaging between the shafts ensures that the first fastener, even if it is of poor quality, arrives safely in the discharge channel. It is held there by a holding device so that it cannot fall out of the ejection channel even when the driving tool is lifted. This enables the use of a simple control for the compartment piston connected to the compartment member, which can advantageously be actuated by the return stroke compressed air for the return stroke of the drive piston connected to the drive tappet. A direct connection Between the air reservoir for the return stroke compressed air and the cylinder for the compartment piston, any further valves are superfluous. The function of the driving tool according to the invention is therefore quick and safe.

Das erfindungsgemäße Merkmal, das Abteilorgan in seiner Freigabestellung festzustellen, bietet die Möglichkeit, mit dem Eintreibgerät auch Befestiger zu verarbeiten, die zu einem Befestigerstreifen, wie z.B. einem Nagel-oder Schraubenstreifen, verbunden sind.The feature according to the invention, to determine the compartment organ in its release position, offers the possibility of also using the driving tool to process fasteners which form a fastener strip, e.g. a nail or screw strip.

Sowohl die lose im Magazin bereitgestellten wie auch die zu einem Befestigerstreifen verbundenen Befestiger werden erfindungsgemäß durch einen mit einer Feder verbundenen Magazinschieber dem Ausstoßkanal zugeführt. Das Eintreibgerät ist daher universal verwendbar sowohl für lose Befestiger als auch für Befestigerstreifen und läßt sich darUberhinaus in allen gewUnschten Richtungen, also auch nach oben, einwandfrei betreiben.According to the invention, both the fasteners provided loosely in the magazine and the fasteners connected to form a fastener strip are fed to the ejection channel by a magazine slide connected by a spring. The driving tool can therefore be used universally both for loose fasteners and for fastener strips and can also be operated properly in all desired directions, i.e. also upwards.

Im folgenden ist ein Ausführungsbeispiel der Erfindung unter Bezugnahme 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 Eintreibgerät gemäß Erfindung, teilweise geschnitten.
  • Fig. 2 Querschnitt nach Linie II - II in Fig. 1 .
  • Fig. 3 Schnitt nach Linie III - III in Fig. 1 .
  • Fig. 4 Schnitt nach Linie IV - IV in Fig. 1, Magazinschieber in Endstellung.
  • Fig. 5 Schnitt nach Linie V - V in Fig. 1 .
Show it:
  • Fig. 1 driving tool according to the invention, partially cut.
  • 2 cross section along line II - II in Fig. 1st
  • 3 section along line III - III in Fig. 1st
  • Fig. 4 section along line IV - IV in Fig. 1, magazine slide in the end position.
  • 5 section along line V - V in Fig. 1st

Wie Fig. 1 zeigt, ist in einem Gehäuse 1 ein Zylinder 2 angeordnet, in dem ein druckluftbetriebener Schlagkolben 3 verschiebbar gelagert ist. Schlagkolben 3 wird in seiner in Fig. 1 gezeichneten Ruhestellung durch eine gummielastische Rastvorrichtung 4 festgehalten. Zur ZufUhrung der Druckluft voneiner nicht dargestellten Druckluftquelle dient ein Verbindungsschlauch 5 sowie der hohle Handgriff 6 von Gehäuse 1.As shown in FIG. 1, a cylinder 2 is arranged in a housing 1, in which a pneumatic piston 3 is slidably mounted. Percussion piston 3 is held in its rest position shown in Fig. 1 by a rubber-elastic locking device 4. A connecting hose 5 and the hollow handle 6 of housing 1 serve to supply the compressed air from a compressed air source, not shown.

Ein Auslöseventil 7 kann nur betätigt werden, wenn sowohl ein Abzugshebel 8 wie auch ein Werkstücktaster 43 aus ihrer Ruhestellung in ihre Arbeitsstellung bewegt werden. Mit dem Auslöseventil 7 wird in bekannter Weise ein zum Zylinder 2 konzentrisch angeordneter Rohrschieber 9 so gesteuert, daß Druckluft in den Zylinder 2 über den Schlagkolben 3 gelangen kann und diesen in seine in Fig. 3 dargestellte Arbeitsstellung bewegt oder daß anschließend dieser Zylinderraum wieder entlüftet wird.A trigger valve 7 can only be actuated if both a trigger 8 and a workpiece switch 43 are moved from their rest position into their working position. With the release valve 7, a pipe slide 9, which is arranged concentrically with the cylinder 2, is controlled in a known manner so that compressed air can get into the cylinder 2 via the percussion piston 3 and move it into its working position shown in FIG .

Zum Rückhub von Schlagkolben 3 ist ein den Zylinder 2 umgebender Luftspeicher 10 vorgesehen, der sich beim Arbeitshub über eine im Zylinder 2 befindliche Bohrung 11 mit Druckluft füllt, die dann nach Entlüftung des Uber dem Schlagkolben 3 befindlichen Zylinderraums über die Bohrungen 12 unter den Schlagkolben 3 gelangt und diesen in seine Ruhestellung zurückbewegt.For the return stroke of the percussion piston 3, an air reservoir 10 is provided which, during the working stroke, fills with compressed air via a bore 11 in the cylinder 2, which then, after venting the cylinder space located above the percussion piston 3, via the bores 12 under the percussion piston 3 arrives and moves it back to its rest position.

Mit dem Gehäuse 1 ist ein Zylinderfuß 13 durch Schrauben verbunden, der einen Ausstoßkanal 14 aufweist, in dem ein mit dem Schlagkolben 3 verbundener Eintreibstößel 15 bewegbar gelagert ist.A cylinder base 13 is connected to the housing 1 by screws and has an ejection channel 14 in which a driving plunger 15 connected to the percussion piston 3 is movably mounted.

Wie auch Fig. 2 zeigt, ist der Ausstoßkanal 14 mit einem Führungsschlitz 16 verbunden, in dem ein FUhrungsschacht 17 eines mit dem Zylinderfuß 13und Handgriff 6 verbundenen Magazins 18 mündet. Die Mittelebene von FUhrungsschacht 17 verläuft dabei durch die Längsachse von Ausstoßkanal 14.As also shown in FIG. 2, the ejection channel 14 is connected to a guide slot 16 in which a guide shaft 17 of a magazine 18 connected to the cylinder base 13 and handle 6 opens. The central plane of the guide shaft 17 runs through the longitudinal axis of the discharge channel 14.

Im Magazin 18 sind lose Nägel 19 bereitgestellt, deren Schäfte 20 im FUhrungsschacht 17 geführt werden und deren Köpfe 21 auf zwei gegenüberliegenden Auflageflächen 22 (siehe auch Fig. 5) aufliegen, die zur Längsachse von Ausstoßkanal 14 geneigt sind. Wie Fig.4 zeigt, ist der Führungsschacht 17 nach hinten offen.Loose nails 19 are provided in the magazine 18, the shafts 20 of which are guided in the guide shaft 17 and the heads 21 of which rest on two opposite bearing surfaces 22 (see also FIG. 5) which are inclined to the longitudinal axis of the ejection channel 14. 4 shows, the guide shaft 17 is open to the rear.

Fig. 2 zeigt ein nach vorne spitz zulaufendes Abteilorgan 23, das in der in Fig. 2 gezeichneten Sperrstellung in den Führungsschlitz 16 so eingreift, daß es den Ausstoßkanal 14 vom FUhrungsschacht 17 trennt. Abteilorgan 23 ist mit einem Abteilkolben 24 verbunden, der in einem Abteilzylinder 25 bewegbar gelagert ist und durch eine Druckfeder 26 in seine Sperrstellung gedrückt wird. Wie Fig. 3 zeigt, ist der Zylinderraum 27 durch Verbindungsbohrungen 28 mit dem Luftspeicher 10 verbunden.FIG. 2 shows a compartment member 23 tapering towards the front, which in the locked position shown in FIG. 2 engages in the guide slot 16 in such a way that it separates the discharge channel 14 from the guide shaft 17. Compartment member 23 is connected to a compartment piston 24 which is movably mounted in a compartment cylinder 25 and is pressed into its locked position by a compression spring 26. As shown in FIG. 3, the cylinder space 27 is connected to the air reservoir 10 through connecting bores 28.

Der Abteilzylinder 25 wird durch eine Verschlußschraube 29 abgeschlossen, in dem ein mit dem Abteilkolben 24 verbundener Führungsstift 30 gelagert ist. Dieser ist mit einer Ringnut 31 versehen, in die eine Sperrklinke 32 eingeschoben werden kann. Diese ist dazu mit einer Schraube 33 schwenkbar an Verschlußschraube 29 befestigt (siehe auch Fig. 3).The compartment cylinder 25 is closed by a screw plug 29 in which a guide pin 30 connected to the compartment piston 24 is mounted. This is provided with an annular groove 31 into which a pawl 32 can be inserted. For this purpose, this is pivotally attached to screw 29 by a screw 33 (see also FIG. 3).

Wie Fig. 1 zeigt, ist im Zylinderfuß 13 eine Haltevorrichtung 34 in Form von zwei Permanent-Magneten vorgesehen, die in den Ausstoßkanal 14 hineinwirken und dort in der Ruhestellung des Eintr.1bstößels 15 einen ersten Nagel 35 festhalten. Als Haltevorrichtung kann anstelle der Permanent-Magnete auch ein federnd in den Ausstoßkanal 14 eingreifender Nocken oder federnde Führungsbacken vorgesehen sein, die hier jedoch, da bekannt, nicht näher dargestellt sind. Im Zylinderfuß 13 sind über der Haltevorrichtung 34 Auspuffbohrungen 36 vorgesehen, die nach dem RUckhub von Schlagkolben 3 der Abführung der restlichen RUckhub-Druckluft dienen, die sonst den ersten Nagel 35 aus dem-Ausstoßkanal 14 herausblasen könnte.As shown in FIG. 1, a holding device 34 in the form of two permanent magnets is provided in the cylinder base 13, which act in the ejection channel 14 and hold a first nail 35 there in the rest position of the tappet 15. Instead of the permanent magnets, a cam that resiliently engages in the ejection channel 14 or resilient guide jaws can also be provided as the holding device, which, however, since they are known, are not shown in detail here. Exhaust is in the cylinder base 13 above the holding device 34 bores 36 are provided which, after the return stroke of percussion pistons 3, serve to discharge the remaining return stroke compressed air, which could otherwise blow the first nail 35 out of the discharge channel 14.

In den Fig. 1 und 2 ist ein im Führungsschacht 17 beweglich gelagerter Magazinschieber 37 strichpunktiert gezeichnet, an dem .mit einem Niet 38 eine im Magazin 18 aufrollbar befestigte Rollfeder 39 befestigt ist. Diese Rollfeder 39 wirkt auf den Magazinschieber 37 in Richtung Ausstoßkanal 14. Mit einem mit dem Magazinschieber 37 verbundenen Griff 40 läßt sich dieser gegen das Ende von Magazin 18 verschieben und dort in einer seitlichen Tasche 41 (siehe Fig. 4) so einhängen, daß der Führungsschacht 17 nach hinten offen ist.1 and 2, a magazine slide 37 movably mounted in the guide shaft 17 is drawn in dash-dotted lines, to which a roller spring 39, which can be rolled up in the magazine 18, is fastened with a rivet 38. This roller spring 39 acts on the magazine slide 37 in the direction of the ejection channel 14. With a handle 40 connected to the magazine slide 37, this can be moved towards the end of magazine 18 and hung there in a side pocket 41 (see FIG. 4) so that the Guide shaft 17 is open to the rear.

Zum Betrieb des erfindungsgemäßen Eintreibgerätes wird zunächst das hintere offene Ende des Führungsschachtes 17 seines Magazins 18 an ein nicht dargestelltes Spendergerät angekoppelt, in dem die Nägel sortiert und an den Köpfen hängend zur Obergabe bereitgestellt werden. Anstelle von glattschäftigen Nägeln lassen sich natürlich auch Nägel mit gedrillten Schäften, Schraubnägel, Nagelschrauben, Schrauben oder dergl. verarbeiten. Nach Ab nehmen des Eintreibgerätes vom Spendergerät gleiten die Nägel 19 an den Köpfen 21 hängend im Führungsschacht 17 unter Wirkung der Schwerkraft bis zum Abteilorgan 23. Der Magazinschieber 37 kann jetzt aus der Tasche 41 ausgehoben und in den Führungsschacht 17 eingeführt werden, wo er die Nägel 19 unter Wirkung der Rollfeder 39 in Richtung Ausstoßkanal 14 drückt.To operate the driving tool according to the invention, the rear open end of the guide shaft 17 of its magazine 18 is first coupled to a dispenser device, not shown, in which the nails are sorted and made available for hanging on the heads. Instead of smooth-action nails, nails with twisted shafts, screw nails, nail screws, screws or the like can of course also be processed. After taking the driving tool from the dispenser, the nails 19 slide on the heads 21 hanging in the guide shaft 17 under the action of gravity to the compartment member 23. The magazine slide 37 can now be lifted out of the pocket 41 and inserted into the guide shaft 17, where it holds the nails 19 presses in the direction of the ejection channel 14 under the action of the roller spring 39.

Wird jetzt das mit Verbindungsschlauch 5 mit einer nicht dargestellten Druckluftquelle verbundene Eintreibgerät gegen ein Werkstück 42 (Fig.3) gedrückt, dann verschiebt sich Werkstücktaster 43 und nach Betätigung von Abzugshebel 8 wird in bekannter Weise der Schlaghub von Schlagkolben 3 ausgelöst. Dieser gelangt gemäß Fig. 3 in seine Arbeitsstellung, ohne jedoch einen Nagel einzuschlagen, da sich noch keiner im Ausstoßkanal 14 befindet. In dieser Stellung des Schlagkolbens 3 gelangt jedoch auch Druckluft Uber Bohrung 11 in Zylinder 2 in den Luftspeicher 10 und weiter über die Bohrung 28 In den Abteilzylinder 25, wo sie den Abteilkolben 24 zusammen mit dem Abteilorgan 23 gegen Wirkung der Druckfeder 26 nach außen verschiebt. Abteilorgan 23 gibt jetzt den Führungsschlitz 16 frei, in dem sich bereits Nägel 19 befinden, von denen der erste Nagel 35 In Richtung Ausstoßkanal 14 gedrückt wird, bis sein Kopf 21 am Eintreibstößel 15 anschlägt. Unter Wirkung des federbelasteten Magazinschiebers 37 nimmt er jedoch mit seinem Schaft 20 eine vom Ausstoßkanal 14 nach hinten weggerichtete Stellung ein.If the driving tool connected with the connecting hose 5 to a compressed air source (not shown) is pressed against a workpiece 42 (FIG. 3), the workpiece push button 43 moves and after the trigger lever 8 is actuated, the impact stroke of the impact piston 3 is triggered in a known manner. According to FIG. 3, this reaches its working position without, however, hitting a nail, since there is still no one in the discharge channel 14. In this position of the percussion piston 3, however, compressed air also passes through bore 11 in cylinder 2 into air reservoir 10 and further via bore 28 into compartment cylinder 25, where it displaces compartment piston 24 together with compartment member 23 against the action of compression spring 26. Compartment member 23 now releases the guide slot 16, in which there are already nails 19, of which the first nail 35 is pressed in the direction of the ejection channel 14 until its head 21 strikes the driving plunger 15. Under the action of the spring-loaded magazine slide 37, however, it assumes with its shaft 20 a position directed away from the discharge channel 14 to the rear.

Wird jetzt Abzugshebel 8 losgelassen, dann wird in bekannter Weise der Innenraum von Zylinder 2 von der Druckluftquelle getrennt und gleichzeitig entlüftet. Damit kann die im Luftspeicher 10 gespeicherte Druckluft den Schlagkolben 3 in seine rückwärtige Ruhestellung befördern, wo er von der Rastvorrichtung 4 festgehalten wird. Bei dieser Rückhubbewegung wirkt der Einschlagstößel 15 infolge Reibungskräften und unterstützt durch Querrillen 44 im Einschlagstößel 15 so auf den Kopf des ersten Nagels 35 ein, daß sich dessen Schaft 20 im Uhrzeigersinn verschwenkt, bis er an der dem Führungsschlitz 16 gegen-Uberliegenden Wand von Ausstoßkanal 14 anliegt. Dort wird er von der Haltevorrichtung 34 in Form der beiden Permanent-Magneten festgehalten. Wird jetzt der nächste Schlag wie bereits beschrieben ausgelöst, dann treibt Eintreibstößel 15 den Nagel 35 ins Werkstück 42. Die Druckluft aus dem Luftspeicher 10 verschiebt wieder Abteilorgan 23, so daß der nächste Nagel gegen den in Eintreib-stellung befindlichen Eintreibstößel 15 gedrückt wird. Nach dem Rückhub des Eintreibstößels gelangt dieser nächste Nagel wieder in den Ausstoßkanal 14 und das Eintreibgerät ist bereit zumsnächsten Schlag.If trigger lever 8 is now released, then the interior of cylinder 2 is separated from the compressed air source in a known manner and simultaneously vented. The compressed air stored in the air reservoir 10 can thus convey the percussion piston 3 into its rear rest position, where it is held by the locking device 4. During this return stroke movement, the impact ram 15 acts as a result of frictional forces and is supported by transverse grooves 44 in the impact ram 15 on the head of the first nail 35 in such a way that its shaft 20 swivels clockwise until it hits the wall of the discharge channel 14 opposite the guide slot 16 is present. There it is held by the holding device 34 in the form of the two permanent magnets. If the next stroke is triggered as already described, then it drives Driving plunger 15 pushes the nail 35 into the workpiece 42. The compressed air from the air reservoir 10 again moves the compartment member 23 so that the next nail is pressed against the driving plunger 15 in the driving position. After the return stroke of the driving plunger, this next nail gets back into the discharge channel 14 and the driving tool is ready for the next blow.

Soll das Abteilorgan 23 in seiner Freigabestellung festgestellt werden, dann muß die Sperrklinke 32 (Fig. 2 und 3) so im Uhrzeigersinn verschwenkt werden, daß sie in die Ringnut 31 von FUhrungsstift 30 eingreift. FUhrungsschacht 17 Ist nun gegen den Ausstoßkanal 14 dauernd geöffnet und es Ist möglich, zu Streifen verbundene Nägel in der bekannten Weise zu verarbeiten.If the compartment member 23 is to be determined in its release position, the pawl 32 (FIGS. 2 and 3) must be pivoted clockwise so that it engages in the annular groove 31 of the guide pin 30. Guide shaft 17 is now permanently open against the discharge channel 14 and it is possible to process nails connected to strips in the known manner.

Die Betätigung von Abteilorgan 23 kann auch so erfolgen, daß es mit dem Einschlagstößel 15 mechanisch so gekoppelt ist, daß dieser das Abteilorgan 23 in seiner Einsreibstellung in die Freigabestellung verschiebt.The compartment organ 23 can also be actuated in such a way that it is mechanically coupled to the impact ram 15 such that it moves the compartment organ 23 into the release position in its rubbing-in position.

Wird das Magazin 18 mit dem Abteilorgan 23 mit einem an sich bekannten Einschraubgerät verbunden, so lassen sich auf einfache Weise lose, in dem Magazin 18 gespeicherte Schrauben verarbeiten. Die Betätigung von Abteilorgan 23 kann dabei so erfolgen, daß es vom Antriebsteil des Einschraubgerätes in seine Freigabestellung verschoben wird, wenn dieser Antriebsteil gegen das Werkstück bewegt wird.If the magazine 18 is connected to the compartment member 23 with a screwing device known per se, loose screws stored in the magazine 18 can be processed in a simple manner. The compartment member 23 can be actuated in such a way that it is displaced into its release position by the drive part of the screwing device when this drive part is moved against the workpiece.

Claims (9)

1) Eintreibgerät für mit einem Schaft versehene Befestiger mit einem Ausstoßkanal, in dem ein kraftbetriebener Eintreibstößel in eine Ruhestellung und eine Eintreibstellung bewegbar geführt ist, mit einem in den Ausstoßkanal mUndenden Magazin und mit einer zwischen Ausstoßkanal und Magazin angeordneten Abteil Vorrichtung, gekennzeichnet durch ein in einer Sperrstellung zwischen die Schäfte (20) eingreifendes und in einer Freigabestellung diese freigebendes Abteilorgan (23) und einer am Ausstoßkanal (14) angeordneten Haltevorrichtung (34).1) Driving tool for fasteners provided with a shaft with an ejection channel in which a power-driven driving plunger is movably guided into a rest position and a driving position, with a magazine opening into the ejection channel and with a compartment device arranged between the ejection channel and magazine, characterized by a in A compartment member (23) engaging a locking position between the shafts (20) and releasing them in a release position and a holding device (34) arranged on the ejection channel (14). 2) Eintreibgerät nach Anspruch 1, dadurch gekennzeichnet, daß das Abteilorgan (23) die Schäfte (20) freigibt, wenn sich der Eintreibstößel (15) in seiner Eintreibstellung befindet und zwischen die Schäfte (20) eingreift, kurz bevor der Eintreibstößel (15) seine Ruhestellung erreicht hat.2) driving tool according to claim 1, characterized in that the compartment member (23) releases the shafts (20) when the driving plunger (15) is in its driving position and engages between the shafts (20) just before the driving plunger (15) has reached its resting position. 3) Eintreibgerät nach Anspruch 2 mit einem Luftspeicher zur kurzzeitigen Speicherung der RUckhub-Druckluft für den Rückhub des Eintreibstößels, dadurch gekennzeichnet, daß das Abteilorgan (23) mit einem von der Rückhub-Druckluft beaufschlagbaren, in einem Abteilzylinder (25) gelagerten Abteilkolben (24) verbunden ist.3) Driving tool according to claim 2 with an air reservoir for the short-term storage of the return stroke compressed air for the return stroke of the driving plunger, characterized in that the compartment member (23) with a return piston compressed air, in a compartment cylinder (25) mounted in the compartment piston (24 ) connected is. 4) Eintreibgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sowohl nicht miteinander verbundene als auch zu Befestigerstreifen miteinander verbundene Befestiger verarbeitbar sind.4) Driving tool according to one of claims 1 to 3, characterized in that fasteners which are not connected to one another and fasteners connected to one another can be processed. 5) Eintreibgerät nach Anspruch 4, dadurch gekennzeichnet, daß am Abteilzylinder (25) eine Feststelleinrichtung (31, 32) vorgesehen ist, mit der das Abteilorgan (23) in seiner Freigabestellung feststellbar ist.5) Driving tool according to claim 4, characterized in that a locking device (31, 32) is provided on the compartment cylinder (25) with which the compartment member (23) can be locked in its release position. 6) Eintreibgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , daß im FUhrungsschacht (17) des Magazins (18) ein mit einer Feder (39) verbundener, in Richtung Ausstoßkanal (14) wirkender Magazinschieber (37) bewegbar gelagert ist.6) Driving tool according to one of claims 1 to 5, characterized in that in the guide shaft (17) of the magazine (18) a magazine slide (37) connected to a spring (39) and acting in the direction of the discharge channel (14) is movably mounted. 7) Eintreibgerät nach Anspruch 6, dadurch gekennzeichnet, daß der Magazinschieber (37) in seiner dem Ausstoßkanal (14) entgegengesetzten Endstellung aus dem FUhrungsschacht (17) herausbewegbar im Magazin (18) gelagert ist.7) Driving tool according to claim 6, characterized in that the magazine slide (37) in its end position opposite the ejection channel (14) is mounted in the magazine (18) so that it can be moved out of the guide shaft (17). 8) Eintreibgerät nach Anspruch 7, dadurch gekennzeichnet, daß im Magazin (18) neben dem FUhrungsschacht (17) eine Tasche (41) zur Aufnahme des Magazinschiebers (37) vorgesehen ist.8) Driving tool according to claim 7, characterized in that in the magazine (18) next to the guide shaft (17) a pocket (41) is provided for receiving the magazine slide (37). 9) Eintreibgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Eintreibstößel (15) in der Nähe seines freien Endes mit Querrillen (44) versehen ist.9) driving tool according to one of claims 1 to 8, characterized in that the driving plunger (15) is provided near its free end with transverse grooves (44).
EP79103098A 1978-09-01 1979-08-23 Fastener-driving apparatus Expired EP0008749B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103098T ATE176T1 (en) 1978-09-01 1979-08-23 DRIVER FOR FASTENERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2838194 1978-09-01
DE2838194A DE2838194C3 (en) 1978-09-01 1978-09-01 Device for feeding and separating fastening means

Publications (2)

Publication Number Publication Date
EP0008749A1 true EP0008749A1 (en) 1980-03-19
EP0008749B1 EP0008749B1 (en) 1981-09-02

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Family Applications (1)

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EP79103098A Expired EP0008749B1 (en) 1978-09-01 1979-08-23 Fastener-driving apparatus

Country Status (8)

Country Link
US (1) US4270687A (en)
EP (1) EP0008749B1 (en)
JP (2) JPS5534992A (en)
AT (1) ATE176T1 (en)
BR (1) BR7905483A (en)
CA (1) CA1112115A (en)
DE (1) DE2838194C3 (en)
ES (1) ES483777A1 (en)

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EP0057179B1 (en) * 1980-08-07 1985-04-17 Swingline, Inc. A fastener driving tool for corners
EP0174160A1 (en) * 1984-08-29 1986-03-12 Swingline, Inc. A fastener driving tool including fastener deformation and guidance arrangements
GB2225974A (en) * 1988-10-22 1990-06-20 Yoshitaka Aoyama Apparatus for feeding slender parts
EP0644020A2 (en) * 1993-05-13 1995-03-22 Stanley-Bostitch, Inc. Fastener driving device
EP0738564A1 (en) * 1995-04-21 1996-10-23 Max Co., Ltd. Screw guide in linked-screw tightener

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CA2123990A1 (en) * 1991-11-20 1993-05-27 Stuart Edmund Blacket Fastening tools and tape therefor
US5711471A (en) * 1996-03-19 1998-01-27 Stanley-Bostitch, Inc. Magnetic biased driving element for a fastener driving tool
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US10987790B2 (en) 2016-06-30 2021-04-27 Black & Decker Inc. Cordless concrete nailer with improved power take-off mechanism
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EP0044985B1 (en) * 1980-07-24 1984-09-19 Gebrüder Kömmerling Kunststoffwerke GmbH Method of mounting heating tubes on a floor, a holder and a foam insulation plate for mounting according to the method and apparatus for performing the method
EP0057179B1 (en) * 1980-08-07 1985-04-17 Swingline, Inc. A fastener driving tool for corners
US4598852A (en) * 1982-04-06 1986-07-08 Swingline Inc. Fastener driving tool including fastener deformation and guidance arrangements
EP0174160A1 (en) * 1984-08-29 1986-03-12 Swingline, Inc. A fastener driving tool including fastener deformation and guidance arrangements
GB2225974A (en) * 1988-10-22 1990-06-20 Yoshitaka Aoyama Apparatus for feeding slender parts
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EP0738564A1 (en) * 1995-04-21 1996-10-23 Max Co., Ltd. Screw guide in linked-screw tightener
US5839332A (en) * 1995-04-21 1998-11-24 Max Co., Ltd. Screw guide in linked-screw tightener

Also Published As

Publication number Publication date
ATE176T1 (en) 1981-09-15
EP0008749B1 (en) 1981-09-02
BR7905483A (en) 1980-05-13
CA1112115A (en) 1981-11-10
DE2838194B2 (en) 1981-07-09
JPS60166508U (en) 1985-11-05
ES483777A1 (en) 1980-07-01
JPH0228009Y2 (en) 1990-07-27
DE2838194A1 (en) 1980-03-13
JPS5534992A (en) 1980-03-11
DE2838194C3 (en) 1982-02-11
US4270687A (en) 1981-06-02

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