EP0236265A2 - Powder-actuated setting tool - Google Patents

Powder-actuated setting tool Download PDF

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Publication number
EP0236265A2
EP0236265A2 EP87810069A EP87810069A EP0236265A2 EP 0236265 A2 EP0236265 A2 EP 0236265A2 EP 87810069 A EP87810069 A EP 87810069A EP 87810069 A EP87810069 A EP 87810069A EP 0236265 A2 EP0236265 A2 EP 0236265A2
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EP
European Patent Office
Prior art keywords
bolt
housing
holding member
driving piston
setting tool
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
EP87810069A
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German (de)
French (fr)
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EP0236265B1 (en
EP0236265A3 (en
Inventor
Franz Buechel
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.)
Hilti AG
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Hilti AG
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Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP0236265A2 publication Critical patent/EP0236265A2/en
Publication of EP0236265A3 publication Critical patent/EP0236265A3/en
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Publication of EP0236265B1 publication Critical patent/EP0236265B1/en
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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
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
    • B25C1/143—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil trigger operated

Definitions

  • the invention relates to a powder-operated setting tool with a housing, a driving piston, which has a radially projecting shoulder relative to a shaft on the setting direction, and a guide bush for the driving piston which can be displaced along the axis of the driving piston relative to the housing, the housing having a substantially perpendicular to the axis of the
  • the driving piston is mounted in a latch that can be moved and the housing has a holding element with a support shoulder that at least partially overlaps the latch in the engaging position.
  • the driving piston In the case of powder-operated setting tools with a driving piston for transferring the powder force to the setting fastener, the driving piston must be moved backwards in the ready-to-fire position in a guide bush after the driving-in process for the next setting process.
  • a latch is provided in the housing of the setting device which protrudes into the axial displacement path of a radially projecting shoulder of the driving piston.
  • the latch is held in the protruding engagement position via a support shoulder of a housing-side holding member.
  • the bolt must be disengageable, which is made possible by removing the holding element designed as a screw.
  • the removal of the holding member requires the use of an auxiliary tool and, moreover, requires complete because of the need unscrewing the holding member requires considerable manipulation; this also applies to the insertion or fixing of the bolt by the holding member.
  • the invention has for its object to enable the removal and insertion of the bolt in a setting tool with the return of a driving piston serving engaging bolt without auxiliary tools and without any significant manipulation effort.
  • the object is achieved in that the holding member is rotatable about the axis of the driving piston and the support shoulder extends in the circumferential direction at least along part of the holding member.
  • the holding member Due to the rotatability of the holding member, for example, in the form of a ring segment, about the axis of the driving piston, the latter can be brought into different rotational positions with the inner contour serving as a supporting shoulder in the overlapping or non-overlapping position of the bolt without an auxiliary tool being required for this. In the respective rotational position, the holding member can be held in position, for example, by friction.
  • the holding member is preferably designed as a ring encompassing the housing with an inner contour which forms the support shoulder and is interrupted by an opening which corresponds at least to the radial projection of the overlapping locking part.
  • a ring-shaped holding member does not require any special guiding means, since the ring encompasses the housing in a concentric manner. It is only necessary to axially fix the ring in relation to the housing.
  • the bar can essentially have, for example, a bar shape sen, one end of the bolt being hooked into the housing, while the opposite end is held down by the support shoulder of the ring and thereby the bolt is fixed in the engagement position.
  • An automatic disengagement of the bolt can be achieved by a spring element acting on the underside of the bolt when the opening is brought into congruence with the bolt.
  • a locking device is advantageously provided to lock the holding member in rotation.
  • the locking device is expediently formed by locking bodies, such as balls, cams or the like, which are immersed in locking recesses by spring force.
  • the setting tool according to FIG. 1 has a housing designated overall by 1.
  • the housing 1 consists of an outer shell 2 with a laterally protruding handle 3 and a tubular chuck body 4 fixed in the outer shell 2.
  • a trigger 5 is displaceably mounted in the handle 3, which acts to trigger the ignition process on an ignition mechanism, not shown, which is known per se .
  • a total of 6 guide bush is slidably mounted, which under pressure conditions conditions of the setting device for attaining the ignition ready position moves to a housing-side locking body 7.
  • This displacement of the guide bush 6 takes place against spring force, in that a tensioning pin 8 seated in the guide bush 6 acts on a compression spring of the ignition mechanism which is supported in the housing 1 at the rear (not shown).
  • An ignition pin 9 of the ignition mechanism is slidably mounted in the closure body 7, an ignition lug 11 being drivable into the position projecting into the front end face of the closure body 7.
  • the bearing bore 12 opens into a central bore 13 in which a drive piston, designated overall by 14, is mounted.
  • the driving piston 14 consists of a front-side shaft 15 and a rear-side head 16. The transition from the smaller cross-section of the shaft 15 to the larger cross-section of the head 16 forms a shoulder 17.
  • the shaft 15 is guided in a mouth part designated overall by 18 and projects into it a mouth bore 19 a.
  • the mouth part 18 is inserted into a bushing 21 so as to be axially displaceable to a limited extent, locking jaws 22 being held in engagement with niche-shaped recesses 24 on the mouth part 18 by an annular spring 23.
  • the bushing 21 is telescopically displaceable in the chuck body 4 and accommodates the front area of the guide bushing 6 on the inside.
  • a cam 25 on the inside of the bushing 21 engages in an axially oriented groove 26 of the guide bushing 6 and can be displaced along the guide bushing up to a stop bolt 27.
  • the guide bush 6 has a longitudinal slot 28 which is continuous to the front.
  • a bar which is in the engaged position and is designated 29 in total projects with a nose 31 through a fen ster 32 in the chuck body 4 and the longitudinal slot 28 into the axial displacement path of the shoulder 17.
  • the bolt 29 is bar-shaped and is supported with the rear end 33 in a recess 34 in the housing 1.
  • the opposite front end 35 of the bolt 29 is radially overlapped by a ring comprising the chuck body 4, generally designated 36, so that the bolt 29 is held in the engagement position shown.
  • a leaf spring 37 acts on the bolt 29 radially outwards.
  • the inner contour of the ring 36 forms a support shoulder 38 which partially surrounds the bolt 29 and is interrupted in the circumferential direction by an opening 39, the clear width of which is slightly larger than the radial projection of the overlapped front end 35 of the bolt 29.
  • a locking device consisting of a locking ball 41, a spring ring 42 and a locking recess 43 in the chuck body 4, reliably ensures that the overlapping rotational position of the support shoulder 38 is maintained.
  • a support ring 45 seated in the chuck body 4 serves to axially support the ring 36.

Abstract

Das Setzgerät verfügt über einen im Gehäuse (1) gelagerten Riegel (29) zum Rückführen des Treibkolbens (14). Hierzu ragt der Riegel (29) mit einer Nase (31) in die axiale Verschiebebahn einer radialen Schulter (17) des Treibkolbens (14). Der Riegel (29) wird über die Stützschulter (38) eines gegenüber dem Gehäuse (1) verdrehbaren Halteorgans (36) in Einrückposition gehalten. Durch Drehen des Halteorgans (36) ist ein Durchbruch (39) desselben in Deckung mit dem Riegel (29) bringbar, was ein rasches Austauschen des Riegels (29) ohne Hilfswerkzeug erlaubt,The setting tool has a bolt (29) mounted in the housing (1) for returning the driving piston (14). For this purpose, the bolt (29) projects with a nose (31) into the axial displacement path of a radial shoulder (17) of the driving piston (14). The bolt (29) is held in the engagement position via the support shoulder (38) of a holding member (36) which can be rotated relative to the housing (1). By turning the holding member (36), an opening (39) of the same can be brought into register with the bolt (29), which allows the bolt (29) to be exchanged quickly without auxiliary tools,

Description

Die Erfindung betrifft ein pulverkraftbetriebenes Setzgerät mit einem Gehäuse, einem Treibkolben, der gegenüber einem setzrichtungsseitigen Schaft eine radial abragende Schulter aufweist, und einer gegenüber dem Gehäuse längs der Achse des Treibkolbens verschiebbaren Führungsbüchse für den Treib­kolben, wobei im Gehäuse ein im wesentlichen senkrecht zur Achse des Treibkolbens in eine Einrückposition verschieb­barer Riegel gelagert ist und das Gehäuse ein Halteorgan mit einer den Riegel in Einrückposition mindestens teilweise übergreifenden Stützschulter aufweist.The invention relates to a powder-operated setting tool with a housing, a driving piston, which has a radially projecting shoulder relative to a shaft on the setting direction, and a guide bush for the driving piston which can be displaced along the axis of the driving piston relative to the housing, the housing having a substantially perpendicular to the axis of the The driving piston is mounted in a latch that can be moved and the housing has a holding element with a support shoulder that at least partially overlaps the latch in the engaging position.

Bei pulverkraftbetriebenen Setzgeräten mit einem Treibkolben zur Uebertragung der Pulverkraft auf das setzende Befesti­gungselement muss der Treibkolben nach dem Eintreibvorgang für den nächsten Setzvorgang in einer Führungsbüchse wieder in Zündbereitschaftsstellung nach rückwärts verschoben werden.In the case of powder-operated setting tools with a driving piston for transferring the powder force to the setting fastener, the driving piston must be moved backwards in the ready-to-fire position in a guide bush after the driving-in process for the next setting process.

Bei einem bekannten Setzgerät (CH-PS 553 037) ist hierzu ein im Gehäuse des Setzgerätes gelagerter Riegel vorgesehen, der in die axiale Verschiebebahn einer radial abragenden Schulter des Treibkolbens einragt. Nach dem Eintreibvorgang kommt beim Vorziehen der Führungsbüchse der mit der abragenden Schulter am Riegel aufstehende Treibkolben in den rückwärtigen Teil der Führungsbüchse zu liegen, so dass er samt Führungsbüchse wieder in Zündbereitschaftsstellung zurückverschoben werden kann.In a known setting tool (CH-PS 553 037), a latch is provided in the housing of the setting device which protrudes into the axial displacement path of a radially projecting shoulder of the driving piston. After the driving-in process, when the guide sleeve is pulled forward, the driving piston with the projecting shoulder on the bolt comes to rest in the rear part of the guide sleeve, so that it and the guide sleeve can be moved back to the ignition-ready position.

Der Riegel wird über eine Stützschulter eines gehäuseseitigen Halteorgans in der einragenden Einrückposition gehalten. Beispielsweise zum Austausch des Treibkolbens muss der Riegel ausrückbar sein, was durch Entfernen des als Schraube ausge­bildeten Halteorgans ermöglicht wird. Das Entfernen des Hal­teorgans bedarf des Einsatzes eines Hilfswerkzeuges und er­fordert darüberhinaus wegen der Notwendigkeit des vollstän­ digen Herausdrehens des Halteorgans einen erheblichen Mani­pulationsaufwand; dies trifft auch für das Einsetzen bzw. Festlegen des Riegels durch das Halteorgan zu.The latch is held in the protruding engagement position via a support shoulder of a housing-side holding member. For example, to replace the driving piston, the bolt must be disengageable, which is made possible by removing the holding element designed as a screw. The removal of the holding member requires the use of an auxiliary tool and, moreover, requires complete because of the need unscrewing the holding member requires considerable manipulation; this also applies to the insertion or fixing of the bolt by the holding member.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Setz­gerät mit dem Rückführen eines Treibkolbens dienendem ein­rückbarem Riegel das Entfernen und Einsetzen des Riegels ohne Hilfswerkzeug und ohne nennenswerten Manipulationsauf­wand zu ermöglichen.The invention has for its object to enable the removal and insertion of the bolt in a setting tool with the return of a driving piston serving engaging bolt without auxiliary tools and without any significant manipulation effort.

Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass das Halteorgan um die Achse des Treibkolbens drehbar ist und die Stützschulter sich in Umfangsrichtung wenigstens entlang eines Teiles des Halteorgans erstreckt.According to the invention the object is achieved in that the holding member is rotatable about the axis of the driving piston and the support shoulder extends in the circumferential direction at least along part of the holding member.

Durch Drehbarkeit des beispielsweise als Ringsegment ausge­bildeten Halteorgans um die Achse des Treibkolbens kann dieses in unterschiedliche Drehstellungen mit der als Stütz­schulter dienenden Innenkontur in den Riegel übergreifende oder nicht übergreifende Stellung gebracht werden, ohne dass hierzu ein Hilfswerkzeug erforderlich ist. In der jeweiligen Drehstellung kann das Halteorgan beispielsweise durch Reib­schluss in Position gehalten werden.Due to the rotatability of the holding member, for example, in the form of a ring segment, about the axis of the driving piston, the latter can be brought into different rotational positions with the inner contour serving as a supporting shoulder in the overlapping or non-overlapping position of the bolt without an auxiliary tool being required for this. In the respective rotational position, the holding member can be held in position, for example, by friction.

Vorzugsweise ist das Halteorgan als das Gehäuse umfassender Ring mit die Stützschulter bildender, von einem mindestens der Radialprojektion des übergriffenen Riegelteiles entspre­chenden Durchbruch unterbrochener Innenkontur ausgebildet. Ein ringförmiges Halteorgan erfordert keine besonderen Führungsmittel, da der Ring selbsthaltend das Gehäuse konzen­trisch umfasst. Es bedarf lediglich der axialen Festlegung des Ringes gegenüber dem Gehäuse.The holding member is preferably designed as a ring encompassing the housing with an inner contour which forms the support shoulder and is interrupted by an opening which corresponds at least to the radial projection of the overlapping locking part. A ring-shaped holding member does not require any special guiding means, since the ring encompasses the housing in a concentric manner. It is only necessary to axially fix the ring in relation to the housing.

Zum Einsetzen bzw. Entfernen des Riegels wird durch Drehen des Ringes dessen Durchbruch in Deckung mit dem Riegel bzw. mit der Ausnehmung für den Riegel im Gehäuse gebracht. Der Riegel kann im wesentlichen beispielsweise Balkenform aufwei­ sen, wobei das eine Ende des Riegels im Gehäuse eingehängt wird, während das gegenüberliegende Ende durch Uebergreifen der Stützschulter des Ringes niedergehalten und dadurch der Riegel in Einrückposition fixiert wird.To insert or remove the bolt, the opening of the bolt is brought into alignment with the bolt or with the recess for the bolt in the housing by rotating the ring. The bar can essentially have, for example, a bar shape sen, one end of the bolt being hooked into the housing, while the opposite end is held down by the support shoulder of the ring and thereby the bolt is fixed in the engagement position.

Durch ein unterseitig auf den Riegel einwirkendes Federele­ment lässt sich ein automatisches Ausrücken des Riegels er­reichen, wenn der Durchbruch in Deckung mit dem Riegel ge­bracht wird. Um sicherzustellen, dass auch durch Erschütte­rung des Setzgerätes die Halteposition des Halteorgans bei­behalten wird, ist zur Dreharretierung des Halteorgans mit Vorteil eine Arretiereinrichtung vorgesehen. Zweckmässig ist die Arretiereinrichtung durch Rastkörper, wie Kugeln, Nocken oder dgl. gebildet, die durch Federkraft in Rastvertiefungen eintauchen.An automatic disengagement of the bolt can be achieved by a spring element acting on the underside of the bolt when the opening is brought into congruence with the bolt. In order to ensure that the holding position of the holding member is maintained even when the setting tool is shaken, a locking device is advantageously provided to lock the holding member in rotation. The locking device is expediently formed by locking bodies, such as balls, cams or the like, which are immersed in locking recesses by spring force.

Die Erfindung wird nachstehend anhand einer Zeichnung, deren Ausführungsbeispiel eines Setzgerätes wiedergibt, näher er­läutert: Es zeigen

  • Fig. 1 Ein Setzgerät, im Vorderbereich im Längs­schnitt, in Ruehestellung, mit zurückgeführ­tem Treibkolben;
  • Fig. 2 eine Detail-Ansicht des Setzgerätes, gemäss Ansicht II in Fig. 1.
The invention is explained in more detail below with reference to a drawing, the embodiment of which represents a setting tool: It shows
  • Fig. 1 A setting tool, in the front area in longitudinal section, in the rest position, with the driving piston returned;
  • FIG. 2 shows a detailed view of the setting tool, according to view II in FIG. 1.

Das setzgerät nach Fig. 1 weist ein insgesamt mit 1 bezeich­netes Gehäuse auf. Das Gehäuse 1 besteht aus einer Aussen­schale 2 mit seitlich abragendem Handgriff 3 und einem rohr­förmigen, in der Aussenschale 2 festgelegten Futterkörper 4. Im Handgriff 3 ist ein Trigger 5 verschiebbar gelagert, der zur Auslösung des Zündvorganges auf einen nicht näher darge­stellten an sich bekannten Zündmechanismus einwirkt.The setting tool according to FIG. 1 has a housing designated overall by 1. The housing 1 consists of an outer shell 2 with a laterally protruding handle 3 and a tubular chuck body 4 fixed in the outer shell 2. A trigger 5 is displaceably mounted in the handle 3, which acts to trigger the ignition process on an ignition mechanism, not shown, which is known per se .

Im Futterkörper 4 ist eine insgesamt mit 6 bezeichnete Füh­rungsbüchse verschiebbar gelagert, die unter Anpressbedin­ gungen des Setzgerätes zum Erlangen der in Zündbereitschafts­stellung sich zu einem gehäuseseitig festgelegten Verschluss­körper 7 hin verschiebt. Dieses Verschieben der Führungsbüch­se 6 erfolgt gegen Federkraft, indem ein in der Führungsbüch­se 6 sitzender Spannstift 8 auf eine im Gehäuse 1 hintersei­tig abgestützte (nicht dargestellte) Druckfeder des Zündmecha­nismus' einwirkt. Im Verschlusskörper 7 ist ein Zündstift 9 des Zündmechanismus' verschiebbar gelagert, wobei eine Zünd­nase 11 in die vordere Stirnseite des Verschlusskörpers 7 überragende Stellung treibbar ist.In the chuck body 4, a total of 6 guide bush is slidably mounted, which under pressure conditions conditions of the setting device for attaining the ignition ready position moves to a housing-side locking body 7. This displacement of the guide bush 6 takes place against spring force, in that a tensioning pin 8 seated in the guide bush 6 acts on a compression spring of the ignition mechanism which is supported in the housing 1 at the rear (not shown). An ignition pin 9 of the ignition mechanism is slidably mounted in the closure body 7, an ignition lug 11 being drivable into the position projecting into the front end face of the closure body 7.

In der Axialprojektion zur Zündnase 11 befindet sich in der Führungsbüchse 6 eine kegelige Lagerbohrung 12 für die Pul­vertreibladungen. Die Lagerbohrung 12 mündet in eine Zentral­bohrung 13, in welcher ein insgesamt mit 14 bezeichneter Treibkolben gelagert ist. Der Treibkolben 14 besteht aus einem vorderseitigen Schaft 15 und einem hinterseitigen Kopf 16. Der Uebergang vom kleineren Querschnitt des Schaftes 15 zum grösseren Querschnitt des Kopfes 16 bildet eine Schulter 17. Der Schaft 15 ist in einem insgesamt mit 18 bezeichneten Mündungsteil geführt und ragt hierzu in eine Mündungsbohrung 19 ein. Das Mündungsteil 18 ist in eine Büchse 21 axial be­grenzt verschiebbar eingesetzt, wobei Verriegelungsbacken 22 von einer Ringfeder 23 in Eingriff mit nischenförmigen Aus­nehmungen 24 am Mündungsteil 18 gehalten werden.In the axial projection to the ignition lug 11 there is a conical bearing bore 12 for the powder propellant charges in the guide bush 6. The bearing bore 12 opens into a central bore 13 in which a drive piston, designated overall by 14, is mounted. The driving piston 14 consists of a front-side shaft 15 and a rear-side head 16. The transition from the smaller cross-section of the shaft 15 to the larger cross-section of the head 16 forms a shoulder 17. The shaft 15 is guided in a mouth part designated overall by 18 and projects into it a mouth bore 19 a. The mouth part 18 is inserted into a bushing 21 so as to be axially displaceable to a limited extent, locking jaws 22 being held in engagement with niche-shaped recesses 24 on the mouth part 18 by an annular spring 23.

Die Büchse 21 ist im Futterkörper 4 teleskopisch verschiebbar und nimmt innenseitig den Vorderbereich der Führungsbüchse 6 auf. Ein Nocken 25 an der Innenseite der Büchse 21 greift in eine axial orientierte Auskehlung 26 der Führungsbüchse 6 ein und ist entlang der Führungsbüchse bis zu einem Anschlagbol­zen 27 verschiebbar.The bushing 21 is telescopically displaceable in the chuck body 4 and accommodates the front area of the guide bushing 6 on the inside. A cam 25 on the inside of the bushing 21 engages in an axially oriented groove 26 of the guide bushing 6 and can be displaced along the guide bushing up to a stop bolt 27.

Diametral gegenüberliegend zur Auskehlung 26 weist die Füh­rungsbüchse 6 einen nach vorne durchgehenden Längsschlitz 28 auf. Ein sich in Einrückposition befindender, insgesamt mit 29 bezeichneter Riegel ragt mit einer Nase 31 durch ein Fen­ ster 32 im Futterkörper 4 und den Längsschlitz 28 hindurch in die axiale Verschiebebahn der Schulter 17. Aussenseitig ist der Riegel 29 balkenförmig ausgebildet und stützt sich mit dem hinteren Ende 33 in einer Nische 34 im Gehäuse 1 ab. Das gegenüberliegende vordere Ende 35 des Riegels 29 wird von einem den Futterkörper 4 umfassenden, insgesamt mit 36 bezeichneten Ring radial übergriffen, so dass der Riegel 29 in der gezeigten Einrückposition gehalten wird. Eine Blatt­feder 37 beaufschlagt den Riegel 29 radial nach aussen.Diametrically opposite to the groove 26, the guide bush 6 has a longitudinal slot 28 which is continuous to the front. A bar which is in the engaged position and is designated 29 in total projects with a nose 31 through a fen ster 32 in the chuck body 4 and the longitudinal slot 28 into the axial displacement path of the shoulder 17. On the outside, the bolt 29 is bar-shaped and is supported with the rear end 33 in a recess 34 in the housing 1. The opposite front end 35 of the bolt 29 is radially overlapped by a ring comprising the chuck body 4, generally designated 36, so that the bolt 29 is held in the engagement position shown. A leaf spring 37 acts on the bolt 29 radially outwards.

Die Innenkontur des Ringes 36 bildet eine zur Abstützung des Riegels 29 teilweise umlaufende Stützschulter 38 und ist in Umfangsrichtung durch einen Durchbruch 39 unterbrochen, des­sen lichte Weite geringfügig grösser als die Radialprojektion des übergriffenen vorderen Endes 35 des Riegels 29 ist. Durch Drehen des Ringes 36 kann der Durchbruch 39 in Deckung mit dem Ende 35 bzw. mit dem Fenster 32 gebracht werden, so dass der Riegel 29 entnommen bzw. eingesetzt werden kann.The inner contour of the ring 36 forms a support shoulder 38 which partially surrounds the bolt 29 and is interrupted in the circumferential direction by an opening 39, the clear width of which is slightly larger than the radial projection of the overlapped front end 35 of the bolt 29. By turning the ring 36, the opening 39 can be brought into congruence with the end 35 or with the window 32, so that the bolt 29 can be removed or inserted.

Eine Arretiereinrichtung, bestehend aus einer Rastkugel 41, einem Federring 42 und einer Rastvertiefung 43 im Futter­körper 4 gewährleistet zuverlässig die Beibehaltung der über­greifenden Drehstellung der Stützschulter 38. Wie die Fig. 2 verdeutlicht, ist zur leichteren Betätigung des Ringes 36 auf diesem aussenseitig eine Rändelung 44 vorgesehen. Der axialen Abstützung des Ringes 36 dient ein im Futterkörper 4 sitzender Stützring 45.A locking device, consisting of a locking ball 41, a spring ring 42 and a locking recess 43 in the chuck body 4, reliably ensures that the overlapping rotational position of the support shoulder 38 is maintained. As FIG intended. A support ring 45 seated in the chuck body 4 serves to axially support the ring 36.

Claims (3)

1. Pulverkraftbetriebenes Setzgerät mit einem Gehäuse (1), einem Treibkolben (14), der gegenüber einem setzrich­tungsseitigen Schaft (15) eine radial abragende Schul­ter (17) aufweist, und einer gegenüber dem Gehäuse (1) längs der Achse des Treibkolbens (14) verschiebbaren Führungsbüchse (6) für den Treibkolben (14), wobei im Gehäuse (1) ein im wesentlichen senkrecht zur Achse des Treibkolbens (14) in eine Einrückposition verschiebba­rer Riegel (29) gelagert ist und das Gehäuse (1) ein Halteorgan (36) mit einer den Riegel (29) in Einrück­position mindestens teilweise übergreifenden Stützschul­ter (38) aufweist, dadurch gekennzeich­net, dass das Halteorgan (36) um die Achse des Treib­kolbens (14) drehbar ist und die Stützschulter (38) sich in Umfangsrichtung wenigstens entlang eines Teiles des Halteorgans (36) erstreckt.1. Powder-powered setting tool with a housing (1), a driving piston (14), which has a radially projecting shoulder (17) relative to a shaft (15) on the setting direction, and one opposite the housing (1) along the axis of the driving piston (14) Slidable guide bush (6) for the driving piston (14), a bolt (29) which can be displaced into an engaging position substantially perpendicular to the axis of the driving piston (14) is mounted in the housing (1) and the housing (1) is a holding member (36) with a support shoulder (38) at least partially overlapping the bolt (29) in the engagement position, characterized in that the holding member (36) can be rotated about the axis of the driving piston (14) and the support shoulder (38) extends in the circumferential direction at least along part of the holding member (36) extends. 2. Setzgerät nach Anspruch 1, dadurch gekennzeichnet, dass das Halteorgan als das Gehäuse (1) umfassender Ring (36) mit die Stützschulter (38) bildender, von einem min­destens der Radialprojektion des übergriffenen Riegel­teiles entsprechenden Durchbruch (39) unterbrochener Innenkontur ausgebildet ist.2. Setting tool according to claim 1, characterized in that the holding member is designed as the housing (1) comprising ring (36) with the support shoulder (38) forming, at least corresponding to the radial projection of the overlapped bolt part opening (39) interrupted inner contour. 3. Setzgerät nach Anspruch 1 oder 2, dadurch gekennzeich­net, dass zur Dreharretierung des Halteorgans (36) eine Arretiereinrichtung (41, 42, 43) vorgesehen ist.3. Setting tool according to claim 1 or 2, characterized in that a locking device (41, 42, 43) is provided for rotationally locking the holding member (36).
EP87810069A 1986-02-22 1987-02-05 Powder-actuated setting tool Expired - Lifetime EP0236265B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3605832 1986-02-22
DE19863605832 DE3605832A1 (en) 1986-02-22 1986-02-22 POWDER POWERED SETTING DEVICE

Publications (3)

Publication Number Publication Date
EP0236265A2 true EP0236265A2 (en) 1987-09-09
EP0236265A3 EP0236265A3 (en) 1989-06-14
EP0236265B1 EP0236265B1 (en) 1991-10-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810069A Expired - Lifetime EP0236265B1 (en) 1986-02-22 1987-02-05 Powder-actuated setting tool

Country Status (5)

Country Link
US (1) US4708061A (en)
EP (1) EP0236265B1 (en)
JP (1) JPH0673823B2 (en)
AU (1) AU582522B2 (en)
DE (2) DE3605832A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0868979A1 (en) * 1997-04-02 1998-10-07 Societe De Prospection Et D'inventions Techniques Spit Fastener driving tool with releasable barrel retaining device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657919A (en) * 1991-09-03 1997-08-19 Masterset Inc. Modular fastener driving tool with noise reducing structure
US5249528A (en) * 1992-11-24 1993-10-05 Lee Jervis R Fireworks support kit
US20110173860A1 (en) * 2010-01-15 2011-07-21 Joseph Arendt Gun lock
EP2886260A1 (en) * 2013-12-19 2015-06-24 HILTI Aktiengesellschaft Driving device

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GB1163061A (en) * 1966-03-24 1969-09-04 Star Expansion Ind Corp Explosive-Activated Power Tool.
CH553037A (en) * 1972-10-24 1974-08-30 Poly Patent Ag NAILER BY EFFECT OF AN EXPLOSIVE ACTION.
FR2375958A1 (en) * 1976-12-29 1978-07-28 Spit Soc Prospect Inv Techn IMPROVEMENTS TO MASSELOTTE SEALING DEVICES AND MASSELOTTE RECALL RATCHET
FR2545402A1 (en) * 1983-05-24 1984-11-09 Pneutek Inc
EP0162009A2 (en) * 1984-05-16 1985-11-21 HILTI Aktiengesellschaft Powder-actuated fastener setting tool

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US3952658A (en) * 1968-09-26 1976-04-27 Broyles Howard F Electrically fired superimposed projectile
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DE3021186A1 (en) * 1980-06-04 1981-12-10 Hilti AG, 9494 Schaan MAGAZINE FOR SLEEVELESS DRIVE CHARGES
US4335657A (en) * 1980-08-13 1982-06-22 Ford Aerospace & Communications Corp. Ammunition round with retained piston
US4651454A (en) * 1985-05-06 1987-03-24 Harris Paul C Spear gun having gas sealing means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163061A (en) * 1966-03-24 1969-09-04 Star Expansion Ind Corp Explosive-Activated Power Tool.
CH553037A (en) * 1972-10-24 1974-08-30 Poly Patent Ag NAILER BY EFFECT OF AN EXPLOSIVE ACTION.
FR2375958A1 (en) * 1976-12-29 1978-07-28 Spit Soc Prospect Inv Techn IMPROVEMENTS TO MASSELOTTE SEALING DEVICES AND MASSELOTTE RECALL RATCHET
FR2545402A1 (en) * 1983-05-24 1984-11-09 Pneutek Inc
EP0162009A2 (en) * 1984-05-16 1985-11-21 HILTI Aktiengesellschaft Powder-actuated fastener setting tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0868979A1 (en) * 1997-04-02 1998-10-07 Societe De Prospection Et D'inventions Techniques Spit Fastener driving tool with releasable barrel retaining device
FR2761631A1 (en) * 1997-04-02 1998-10-09 Spit Soc Prospect Inv Techn BUFFER SEALING APPARATUS WITH ERASABLE CANNON RETENTION
US6015078A (en) * 1997-04-02 2000-01-18 Societe De Prospection Et D'inventions Techniques Spit Retractable barrel-holding plug fixing apparatus

Also Published As

Publication number Publication date
AU6909187A (en) 1987-08-27
DE3605832A1 (en) 1987-08-27
JPS62246431A (en) 1987-10-27
US4708061A (en) 1987-11-24
DE3773410D1 (en) 1991-11-07
AU582522B2 (en) 1989-03-23
JPH0673823B2 (en) 1994-09-21
EP0236265B1 (en) 1991-10-02
EP0236265A3 (en) 1989-06-14

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