EP1025960B1 - Setting tool - Google Patents

Setting tool Download PDF

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Publication number
EP1025960B1
EP1025960B1 EP00810034A EP00810034A EP1025960B1 EP 1025960 B1 EP1025960 B1 EP 1025960B1 EP 00810034 A EP00810034 A EP 00810034A EP 00810034 A EP00810034 A EP 00810034A EP 1025960 B1 EP1025960 B1 EP 1025960B1
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EP
European Patent Office
Prior art keywords
pin
guide cylinder
setting
setting tool
setting direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00810034A
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German (de)
French (fr)
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EP1025960A1 (en
Inventor
Gebhard Gantner
Markus Sprenger
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 EP1025960A1 publication Critical patent/EP1025960A1/en
Application granted granted Critical
Publication of EP1025960B1 publication Critical patent/EP1025960B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D9/00Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06Means for driving the impulse member
    • B25D9/11Means for driving the impulse member operated by combustion pressure generated by detonation of a cartridge

Definitions

  • the invention relates to a powder-operated setting tool according to the preamble of Claim 1.
  • Such a setting tool with the type designation DX A40 is produced for example by Hilti AG in Liechtenstein.
  • This well-known setting tool has a guide cylinder which can be moved relative to a housing and has an inner bore on, in which a driving piston is axially displaceable.
  • Towards one A control pin protrudes from the end region of the guide cylinder pointing in the setting direction when pressing the setting tool against a surface together with the Guide cylinder is offset against the setting direction.
  • a trigger slide which is essentially when a trigger is actuated is displaceable perpendicular to the setting direction.
  • the firing pin is rotated about its longitudinal axis so that its counter surface is displaced from the axial projection surface of the control pin.
  • the ignition pin is accelerated in the setting direction up to it hits the ignition area of a cartridge and ignites it.
  • the firing pin will pressed laterally against the control pin via a return spring. Only when lifting the Setting tool from the ground, the guide cylinder is biased by a The spring has been pushed into its initial position on the setting direction.
  • the control pin moves also in the setting direction.
  • the control pin gives the ignition pin while still of the lifting process freely, so that its counter surface with the help of the return spring can in turn be turned back into the axial projection of the control pin.
  • a setting tool according to the preamble of claim 1 is from GB 1 163 061 A. (01) known.
  • the invention has for its object to a powder-powered setting tool create that an operator reaching a certain level of pollution in one from the bottom of the inner bore and one against the The combustion chamber formed thereby facing the end face of the driving piston indicates that the setting tool can no longer be operated and must therefore be cleaned.
  • the game is advantageously less than 2 mm.
  • the degree of contamination can be set within the combustion chamber preferably the game adjustable.
  • the smallest is expediently used for simplified manufacturing reasons Distance between the retaining pin and the free end of the control pin adjustable.
  • the setting is made, for example, by means of a threaded connection between the Control pin and the guide cylinder. For example, if you turn the control pin out of the Guide cylinder out a little, so even with a little dirt Ignition pin can no longer be placed in a position ready for ignition. Will the tax pen something turned out of the guide cylinder, so the degree of contamination to be taller.
  • This threaded connection has the further advantage that the setting of the Game can not be adjusted from the outside.
  • the setting or correction of the game can, for example, only with a service if the setting tool is disassembled will be made.
  • a powder-operated setting tool such as a housing 1, a guide cylinder 2 with an inner bore 25, a driving piston 4, a control pin 8, an ignition pin 16, a trigger slide 19 and a trigger 15.
  • the guide cylinder 2 protrudes into the housing 1 and is opposite to this Setting direction against the force of a spring 10 displaceable.
  • the driving piston 4 is located in an inner bore 25 of the guide cylinder 2, which point in the setting direction Bottom 28 has a connecting channel that opens up to one Cartridge receptacle 7 of the guide cylinder 2 extends.
  • a guide tube 3 which extends in the setting direction sleeve-shaped damping element 11 is supported on the closure 12.
  • the guide tube 3 projects beyond the closure 12 in the setting direction and has a central through hole with a receiving area open in the setting direction for a nail-shaped Fastening element 24.
  • the closure 12 projects beyond the guide cylinder 2 in radial direction.
  • Surrounding the spring 10 cooperating with the guide cylinder 2 the guide cylinder 2 and is between an annular pointing in the setting direction Shoulder of the housing 1 and one pointing against the setting direction annular shoulder of the closure 12 is arranged.
  • the driving piston 4 is composed of a head 6, whose diameter in essentially corresponds to the diameter of the inner bore 25 and one in the setting direction to the head 6 adjoining shaft 5, the diameter of which is smaller than that Diameter of the head 6.
  • the central through hole of the guide tube 3 has a section serving to guide the shaft 5, its diameter corresponds essentially to the diameter of the shaft 5.
  • a retaining pin 9 is arranged in the end region of the housing 1 on the setting direction, which passes through a longitudinal slot of the guide cylinder 2, into the inner bore 25 of the Guide cylinder 2 protrudes and can be brought into operative connection with the driving piston 4.
  • a control pin 8 opposite the setting direction protrudes from the guide cylinder 2, a control pin 8, the together with the guide cylinder 2 is displaceable relative to the housing 1.
  • This Control pin 8 is adjustable by means of a threaded connection 27 with the guide cylinder 2 in connection.
  • a smallest distance A1 between the retaining pin 9 and the free end of the control pin 8 plus a game S corresponds to a smallest Distance A2 between the retaining pin 9 and the counter surface 26 of the ignition pin 16.
  • the ignition pin 16 is when pressing the setting tool against a base 23, according to FIG. 2, relative to the housing 1 from a setting direction side Starting position counter to the force of a spring element 18 the setting direction in a position ready for ignition.
  • the spring element 18 biased and the driver 17 of the firing pin 16 comes into the recess a trigger slide 19.
  • the firing pin 16 is triggered with the aid of a trigger 15, the trigger lever 22 of the trigger slide 19 when the trigger 15 is actuated shifts perpendicular to the setting direction.
  • the trigger slide 19th cooperating spring member 20 biased.
  • the one in the recess of the release slide 19 positively guided driver 17 of the ignition pin 16 is from the axial projection surface of the control pin 8 offset and the ignition pin 16 of the Spring element 18 accelerates in the setting direction until the firing pin 16 in an ignition area opens a cartridge and ignites it.
  • the driver 17 tensions a return spring 21 before, which pushes the driver 17 laterally against the control pin 8.
  • a displacement of the driver 17 from and into the axial projection surface of the Control pin 8 is, for example, by turning the ignition pin 16 around its Longitudinal axis reached.
  • Fig. 4 discloses contamination with the thickness A at the bottom of the inner bore 25 of the guide cylinder 2. This contamination is caused, for example, by unburned powder residues.
  • the guide cylinder 2 When the guide cylinder 2 is displaced in the setting direction, it cannot quite reach its initial position due to the contamination.
  • the control pin 8 arranged on the guide cylinder 2 cannot release the driver 17 of the ignition pin 16, so that it cannot be moved into the axial projection surface of the control pin 8.
  • the control pin 8 does not move the ignition pin 16 into an ignition-ready position.
  • a cartridge channel 13 extends perpendicular to the setting direction through the setting device, in which a strip-shaped cartridge magazine 14 is arranged.

Abstract

The powder-driven insertion machine has a housing (1) and guide cylinder (2) in whose inner bore (25) is a drive piston (4). A control pin (8) protrudes from the guide cylinder and cooperates with a counter-surface (26). An ignition pin (16) is connected with the release slide-piece (19) operated by a trigger (15). The housing contains a retainer pin (9) protruding inside the guide cylinder. The shortest distance (A3) between the retainer pin and a base (28)of the inner bore corresponds to the length of the drive piston .

Description

Die Erfindung betrifft ein pulverkraftbetriebenes Setzgerät gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a powder-operated setting tool according to the preamble of Claim 1.

Zum Eintreiben von nagelförmigen Befestigungselementen in harte Untergründe wie beispielsweise Gestein, Beton, Stahl oder dergleichen werden pulverkraftbetriebene Setzgeräte verwendet. Ein derartiges Setzgerät mit der Typenbezeichnung DX A40 wird beispielsweise von der Fa. Hilti AG, in Liechtenstein erzeugt. Dieses bekannte Setzgerät weist einen gegenüber einem Gehäuse versetzbaren Führungszylinder mit einer Innenbohrung auf, in der ein Treibkolben axial versetzbar angeordnet ist. Von einem entgegen der Setzrichtung weisenden Endbereich des Führungszylinders ragt ein Steuerstift ab, der beim Anpressen des Setzgerätes gegen einen Untergrund zusammen mit dem Führungszylinder entgegen der Setzrichtung versetzt wird. Über eine entsprechende Gegenfläche am Zündstift, mit der der Steuerstift zusammenwirkt, ist der Zündstift in eine zündbereite Stellung versetzbar. Dabei wird ein mit dem Zündstift zusammenwirkendes Federelement vorgespannt.For driving nail-shaped fasteners into hard surfaces such as for example, stone, concrete, steel or the like are powered by powder power Setting tools used. Such a setting tool with the type designation DX A40 is produced for example by Hilti AG in Liechtenstein. This well-known setting tool has a guide cylinder which can be moved relative to a housing and has an inner bore on, in which a driving piston is axially displaceable. Towards one A control pin protrudes from the end region of the guide cylinder pointing in the setting direction when pressing the setting tool against a surface together with the Guide cylinder is offset against the setting direction. About a corresponding one Counter surface on the ignition pin, with which the control pin interacts, is the ignition pin in one ignitable position can be moved. This will interact with the ignition pin Preloaded spring element.

In der zündbereiten Stellung des Zündstiftes ragt ein Teil des Zündstiftes in die Ausnehmung eines Auslöseschiebers, der bei der Betätigung eines Triggers im wesentlichen senkrecht zur Setzrichtung verschiebbar ist. Bei einer derartigen Verschiebung des Auslöseschiebers wird der Zündstift um seine Längsachse verdreht, so dass dessen Gegenfläche aus der axialen Projektionsfläche des Steuerstiftes versetzt wird. Beim Entspannen des vorgespannten Federelementes wird der Zündstift in Setzrichtung beschleunigt bis dieser im Zündbereich einer Kartusche aufschlägt und diese zündet. Der Zündstift wird über eine Rückstellfeder seitlich gegen den Steuerstift gedrückt. Erst beim Abheben des Setzgerätes von dem Untergrund wird der Führungszylinder von einer vorgespannten Feder in seine setzrichtungsseitige Ausgangsstellung geschoben. Der Steuerstift bewegt sich dabei ebenfalls in Setzrichtung. Bereits nach einer Versetzung des Führungszylinders in Setzrichtung um einen Weg, der dem Weg der axialen Versetzbarkeit des Zündstiftes entspricht, gibt der Steuerstift den Zündstift noch während des Abhebevorganges frei, so dass dessen Gegenfläche mit Hilfe der Rückstellfeder wiederum in die Axialprojektion des Steuerstiftes zurückgedreht werden kann.In the ignition-ready position of the ignition pin, part of the ignition pin protrudes into the recess a trigger slide, which is essentially when a trigger is actuated is displaceable perpendicular to the setting direction. With such a displacement of the trigger slide the firing pin is rotated about its longitudinal axis so that its counter surface is displaced from the axial projection surface of the control pin. When relaxing of the preloaded spring element, the ignition pin is accelerated in the setting direction up to it hits the ignition area of a cartridge and ignites it. The firing pin will pressed laterally against the control pin via a return spring. Only when lifting the Setting tool from the ground, the guide cylinder is biased by a The spring has been pushed into its initial position on the setting direction. The control pin moves also in the setting direction. Already after a transfer of the Guide cylinder in the setting direction by a path that is the path of the axial Corresponds to displaceability of the ignition pin, the control pin gives the ignition pin while still of the lifting process freely, so that its counter surface with the help of the return spring can in turn be turned back into the axial projection of the control pin.

Ein Setzgerät gemäß dem Oberbegriff des Anspruchs 1 ist aus GB 1 163 061 A (01) bekannt.A setting tool according to the preamble of claim 1 is from GB 1 163 061 A. (01) known.

Der Erfindung liegt die Aufgabe zugrunde, ein pulverkraftbetriebenes Setzgerät zu schaffen, das einer Bedienungsperson das Erreichen eines bestimmten Verschmutzungsgrades in einem vom Boden der Innenbohrung und einer entgegen der Setzrichtung weisenden Stirnseite des Treibkolbens gebildeten Brennraum dadurch anzeigt, indem das Setzgerät nicht mehr betätigbar ist und daher gereinigt werden muss.The invention has for its object to a powder-powered setting tool create that an operator reaching a certain level of pollution in one from the bottom of the inner bore and one against the The combustion chamber formed thereby facing the end face of the driving piston indicates that the setting tool can no longer be operated and must therefore be cleaned.

Die Lösung dieser Aufgabe erfolgt durch ein pulverkraftbetriebenes Setzgerät, welches die im kennzeichnenden Abschnitt des Patentanspruchs 1 angeführten Merkmale aufweist.This task is solved by a powder-operated setting tool, which has the features stated in the characterizing section of claim 1.

Aufgrund der erfindungsgemässen Ausgestaltung des Setzgerätes ist eine Versetzung der Gegenfläche des Zündstiftes in die axiale Projektionsfläche des Steuerstiftes unmöglich, wenn sich am Boden der Innenbohrung des Führungszylinders eine, beispielsweise durch unverbranntes Pulver hervorgerufene, Verschmutzung angesammelt hat, die eine vollständige Versetzung des Führungszylinders gegenüber dem Gehäuse in Setzrichtung und somit eine Freigabe des Zündstiftes durch den Steuerstift verhindert.Because of the design of the setting tool according to the invention, there is an offset the counter surface of the ignition pin in the axial projection surface of the control pin impossible if there is a, at the bottom of the inner bore of the guide cylinder, for example, pollution accumulated by unburned powder has a complete displacement of the guide cylinder compared to the Housing in the setting direction and thus release of the ignition pin by the control pin prevented.

Um eine grössere Ansammlung von unverbranntem Pulver in dem Setzgerät verhindern zu können, ist vorteilhafterweise das Spiel kleiner als 2 mm.To prevent a large accumulation of unburned powder in the setting tool to be able to, the game is advantageously less than 2 mm.

Versuche haben bestätigt, dass eine optimale Ausnutzung der über die Kartuschen zuführbaren Energie erfolgt, wenn das Spiel vorzugsweise 0,1 mm bis 1 mm beträgt.Tests have confirmed that optimal use is made of the cartridges supplyable energy takes place if the play is preferably 0.1 mm to 1 mm.

Damit der Verschmutzungsgrad innerhalb des Brennraumes eingestellt werden kann ist vorzugsweise das Spiel einstellbar.So that the degree of contamination can be set within the combustion chamber preferably the game adjustable.

Aus vereinfachten herstelltechnischen Gründen ist zweckmässigerweise der kleinste Abstand zwischen dem Rückhaltestift und dem freien Ende des Steuerstiftes einstellbar. Die Einstellung erfolgt beispielsweise mittels einer Gewindeverbindung zwischen dem Steuerstift und dem Führungszylinder. Dreht man beispielsweise den Steuerstift aus dem Führungszylinder etwas heraus, so kann bereits bei einer geringen Verschmutzung der Zündstift nicht mehr in eine zündbereite Stellung versetzt werden. Wird der Steuerstift etwas aus dem Führungszylinder herausgedreht, so kann der Grad der Verschmutzung grösser sein. Diese Gewindeverbindung hat weiters den Vorteil, dass die Einstellung des Spieles nicht von aussen verstellt werden kann. Die Einstellung bzw. Korrektur des Spiels kann beispielsweise nur bei einem Service, wenn das Setzgerät auseinandergenommen wird, vorgenommen werden.The smallest is expediently used for simplified manufacturing reasons Distance between the retaining pin and the free end of the control pin adjustable. The setting is made, for example, by means of a threaded connection between the Control pin and the guide cylinder. For example, if you turn the control pin out of the Guide cylinder out a little, so even with a little dirt Ignition pin can no longer be placed in a position ready for ignition. Will the tax pen something turned out of the guide cylinder, so the degree of contamination to be taller. This threaded connection has the further advantage that the setting of the Game can not be adjusted from the outside. The setting or correction of the game can, for example, only with a service if the setting tool is disassembled will be made.

Die Erfindung wird anhand von Zeichnungen, die ein Ausführungsbeispiel wiedergeben, näher erläutert. Es zeigen:

Fig.1
einen erfindungsgemässen, geschnitten dargestellten Führungszylinder mit Treibkolben und einen Zündstift eines sich in der Ausgangsstellung befindlichen Setzgerätes:
Fig. 2
den Führungszylinder und den Zündstift in der angepressten Stellung des Setzgerätes;
Fig. 3
den Führungszylinder und den Zündstift in der angepressten Stellung des Setzgerätes, der Trigger ist gedrückt;
Fig. 4
den Führungszylinder gemäss Fig. 1 mit verschmutztem Brennraum.
The invention is explained in more detail with reference to drawings which show an exemplary embodiment. Show it:
Fig.1
a guide cylinder according to the invention, shown in section, with a driving piston and an ignition pin of a setting tool located in the starting position:
Fig. 2
the guide cylinder and the firing pin in the pressed position of the setting tool;
Fig. 3
the guide cylinder and the firing pin in the pressed position of the setting tool, the trigger is pressed;
Fig. 4
the guide cylinder of FIG. 1 with a dirty combustion chamber.

Die Fig. 1 bis 4 zeigen Teile eines pulverkraftbetriebenen Setzgerätes wie beispielsweise ein Gehäuse 1, einen Führungszylinder 2 mit einer Innenbohrung 25, einen Treibkolben 4, einen Steuerstift 8, einen Zündstift 16, einen Auslöseschieber 19 und einen Trigger 15.1 to 4 show parts of a powder-operated setting tool such as a housing 1, a guide cylinder 2 with an inner bore 25, a driving piston 4, a control pin 8, an ignition pin 16, a trigger slide 19 and a trigger 15.

Der Führungszylinder 2 ragt in das Gehäuse 1 und ist gegenüber diesem entgegen der Setzrichtung gegen die Kraft einer Feder 10 versetzbar. Der Treibkolben 4 befindet sich in einer Innenbohrung 25 des Führungszylinders 2, die einen in Setzrichtung weisenden Boden 28 aufweist in den ein Verbindungskanal mündet, der sich bis zu einer Kartuschenaufnahme 7 des Führungszylinders 2 erstreckt. In Setzrichtung schliesst sich an den Führungszylinder 2 ein Führungsrohr 3 an, das sich in Setzrichtung über ein hülsenförmiges Dämpfungselement 11 an dem Verschluss 12 abstützt. Das Führungsrohr 3 überragt in Setzrichtung den Verschluss 12 und weist eine zentrale Durchgangsbohrung mit einem in Setzrichtung offen ausgebildeten Aufnahmebereich für ein nagelförmiges Befestigungselement 24 auf. Der Verschluss 12 überragt den Führungszylinder 2 in radialer Richtung. Die mit dem Führungszylinder 2 zusammenwirkende Feder 10 umgibt den Führungszylinder 2 und ist zwischen einer in Setzrichtung weisenden kreisringförmigen Schulter des Gehäuses 1 und einer entgegen der Setzrichtung weisenden kreisringförmigen Schulter des Verschlusses 12 angeordnet.The guide cylinder 2 protrudes into the housing 1 and is opposite to this Setting direction against the force of a spring 10 displaceable. The driving piston 4 is located in an inner bore 25 of the guide cylinder 2, which point in the setting direction Bottom 28 has a connecting channel that opens up to one Cartridge receptacle 7 of the guide cylinder 2 extends. Closes in the setting direction to the guide cylinder 2, a guide tube 3, which extends in the setting direction sleeve-shaped damping element 11 is supported on the closure 12. The guide tube 3 projects beyond the closure 12 in the setting direction and has a central through hole with a receiving area open in the setting direction for a nail-shaped Fastening element 24. The closure 12 projects beyond the guide cylinder 2 in radial direction. Surrounding the spring 10 cooperating with the guide cylinder 2 the guide cylinder 2 and is between an annular pointing in the setting direction Shoulder of the housing 1 and one pointing against the setting direction annular shoulder of the closure 12 is arranged.

Der Treibkolben 4 setzt sich zusammen aus einem Kopf 6, dessen Durchmesser im wesentlichen dem Durchmesser der Innenbohrung 25 entspricht und einem sich in Setzrichtung an den Kopf 6 anschliessenden Schaft 5, dessen Durchmesser kleiner ist als der Durchmesser des Kopfes 6. Die zentrale Durchgangsbohrung des Führungsrohres 3 weist einen der Führung des Schaftes 5 dienenden Abschnitt auf, dessen Durchmesser im wesentlichen dem Durchmesser des Schaftes 5 entspricht.The driving piston 4 is composed of a head 6, whose diameter in essentially corresponds to the diameter of the inner bore 25 and one in the setting direction to the head 6 adjoining shaft 5, the diameter of which is smaller than that Diameter of the head 6. The central through hole of the guide tube 3 has a section serving to guide the shaft 5, its diameter corresponds essentially to the diameter of the shaft 5.

Im setzrichtungsseitigen Endbereich des Gehäuses 1 ist ein Rückhaltestift 9 angeordnet, der einen Längsschlitz des Führungszylinders 2 durchsetzt, in die Innenbohrung 25 des Führungszylinders 2 ragt und in Wirkverbindung mit dem Treibkolben 4 bringbar ist. Entgegen der Setzrichtung ragt von dem Führungszylinder 2 ein Steuerstift 8 ab, der zusammen mit dem Führungszylinder 2 relativ zum Gehäuse 1 versetzbar ist. Dieser Steuerstift 8 steht mittels einer Gewindeverbindung 27 mit dem Führungszylinder 2 verstellbar in Verbindung. Ein kleinster Abstand A1 zwischen dem Rückhaltestift 9 und dem freien Ende des Steuerstiftes 8 zuzüglich eines Spiels S entspricht einem kleinsten Abstand A2 zwischen dem Rückhaltestift 9 und der Gegenfläche 26 des Zündstiftes 16.A retaining pin 9 is arranged in the end region of the housing 1 on the setting direction, which passes through a longitudinal slot of the guide cylinder 2, into the inner bore 25 of the Guide cylinder 2 protrudes and can be brought into operative connection with the driving piston 4. opposite the setting direction protrudes from the guide cylinder 2, a control pin 8, the together with the guide cylinder 2 is displaceable relative to the housing 1. This Control pin 8 is adjustable by means of a threaded connection 27 with the guide cylinder 2 in connection. A smallest distance A1 between the retaining pin 9 and the free end of the control pin 8 plus a game S corresponds to a smallest Distance A2 between the retaining pin 9 and the counter surface 26 of the ignition pin 16.

Mit Hilfe dieses Steuerstiftes 8 ist der Zündstift 16 beim Anpressen des Setzgerätes gegen einen Untergrund 23, gemäss Fig. 2, relativ zum Gehäuse 1 von einer setzrichtungsseitigen Ausgangsstellung gegen die Kraft eines Federelementes 18 entgegen der Setzrichtung in eine zündbereite Stellung versetzbar. Dabei wird das Federelement 18 vorgespannt und der Mitnehmer 17 des Zündstiftes 16 gelangt in die Ausnehmung eines Auslöseschiebers 19.With the help of this control pin 8, the ignition pin 16 is when pressing the setting tool against a base 23, according to FIG. 2, relative to the housing 1 from a setting direction side Starting position counter to the force of a spring element 18 the setting direction in a position ready for ignition. The spring element 18 biased and the driver 17 of the firing pin 16 comes into the recess a trigger slide 19.

Ein Auslösen des Zündstiftes 16, wie in Fig. 3 dargestellt, erfolgt mit Hilfe eines Triggers 15, dessen Auslösehebel 22 beim Betätigen des Triggers 15 den Auslöseschieber 19 senkrecht zur Setzrichtung verschiebt. Dabei wird ein mit dem Auslöseschieber 19 zusammenwirkendes Federteil 20 vorgespannt. Der in der Ausnehmung des Auslöseschiebers 19 formschlüssig geführte Mitnehmer 17 des Zündstiftes 16 wird dabei aus der axialen Projektionsfläche des Steuerstiftes 8 versetzt und der Zündstift 16 von dem Federelement 18 in Setzrichtung beschleunigt, bis der Zündstift 16 in einem Zündbereich einer Kartusche aufschlägt und diese zündet. Bei der Versetzung des Zündstiftes 16 in Setzrichtung mit Hilfe des Federelementes 18 spannt der Mitnehmer 17 eine Rückstellfeder 21 vor, die den Mitnehmer 17 seitlich gegen den Steuerstift 8 drückt. Erst beim Abheben des Setzgerätes von dem Untergrund 23 bewegt sich der Steuerstift 8 zusammen mit dem Führungszylinder 2 in Setzrichtung bis der Führungszylinder 2 seine Ausgangsstellung erreicht. In der Ausgangsstellung des Führungszylinders 2 liegt eine in Setzrichtung weisende Anschlagfläche 29 des Treibkolbens 4 an dem Rückhaltestift 9 und eine entgegen der Setzrichtung weisende Stirnseite des Treibkolbens 4 an dem Boden 28 der Innenbohrung 25 an. Der kürzeste Abstand zwischen dem Rückhaltestift und dem Boden 28 der Innenbohrung 25 wird als A3 bezeichnet. In dieser Ausgangsstellung des Führungszylinders 2 gibt der Steuerstift 8 den Mitnehmer 17 frei, so dass die am Mitnehmer 17 angeordnete Gegenfläche 26 mit Hilfe der Rückstellfeder 21 in die axiale Projektionsfläche des Steuerstiftes 8 zurückversetzt werden kann.The firing pin 16, as shown in FIG. 3, is triggered with the aid of a trigger 15, the trigger lever 22 of the trigger slide 19 when the trigger 15 is actuated shifts perpendicular to the setting direction. Here, one with the trigger slide 19th cooperating spring member 20 biased. The one in the recess of the release slide 19 positively guided driver 17 of the ignition pin 16 is from the axial projection surface of the control pin 8 offset and the ignition pin 16 of the Spring element 18 accelerates in the setting direction until the firing pin 16 in an ignition area opens a cartridge and ignites it. When moving the firing pin 16 in Setting direction with the aid of the spring element 18, the driver 17 tensions a return spring 21 before, which pushes the driver 17 laterally against the control pin 8. Not until Lifting the setting tool off the base 23 moves the control pin 8 together with the guide cylinder 2 in the setting direction until the guide cylinder 2 is Starting position reached. In the starting position of the guide cylinder 2 is in Stopping surface 29 of the driving piston 4 pointing to the setting direction on the retaining pin 9 and an opposite end of the driving piston 4 on the Bottom 28 of the inner bore 25. The shortest distance between the retention pin and the bottom 28 of the inner bore 25 is referred to as A3. In this starting position of the guide cylinder 2, the control pin 8 releases the driver 17, so that the on the driver 17 arranged counter surface 26 using the return spring 21 in the axial projection surface of the control pin 8 can be set back.

Zwischen der Gegenfläche 26 und dem freien Ende des Steuerstiftes 8 ist ein Spiel vorhanden, das kleiner als 2 mm ist.There is play between the counter surface 26 and the free end of the control pin 8, that is smaller than 2 mm.

Ein Versetzen des Mitnehmers 17 aus der und in die axiale Projektionsfläche des Steuerstiftes 8 wird beispielsweise durch eine Verdrehung des Zündstiftes 16 um seine Längsachse erreicht.A displacement of the driver 17 from and into the axial projection surface of the Control pin 8 is, for example, by turning the ignition pin 16 around its Longitudinal axis reached.

Fig. 4 offenbart eine Verschmutzung mit der Stärke A am Boden der Innenbohrung 25 des Führungszylinders 2. Diese Verschmutzung wird beispielsweise hervorgerufen durch unverbrannte Pulverrückstände. Bei der Versetzung des Führungszylinders 2 in Setzrichtung kann dieser aufgrund der Verschmutzung seine Ausgangsstellung nicht ganz erreichen. Der an dem Führungszylinder 2 angeordnete Steuerstift 8 kann dadurch den Mitnehmer 17 des Zündstiftes 16 nicht freigeben, so dass dieser nicht in die axiale Projektionsfläche des Steuerstiftes 8 versetzt werden kann. Bei einem erneuten Anpressvorgang erfolgt keine Versetzung des Zündstiftes 16 durch den Steuerstift 8 in eine zündbereite Stellung.
Zwischen der Kartuschenaufnahme 7 des Führungszylinders 2 und dem Zündstift 16 erstreckt sich senkrecht zur Setzrichtung ein Kartuschenkanal 13 durch das Setzgerät, in dem ein streifenförmiges Kartuschenmagazin 14 angeordnet ist.
Fig. 4 discloses contamination with the thickness A at the bottom of the inner bore 25 of the guide cylinder 2. This contamination is caused, for example, by unburned powder residues. When the guide cylinder 2 is displaced in the setting direction, it cannot quite reach its initial position due to the contamination. As a result, the control pin 8 arranged on the guide cylinder 2 cannot release the driver 17 of the ignition pin 16, so that it cannot be moved into the axial projection surface of the control pin 8. When the contact pressure is renewed, the control pin 8 does not move the ignition pin 16 into an ignition-ready position.
Between the cartridge receptacle 7 of the guide cylinder 2 and the firing pin 16, a cartridge channel 13 extends perpendicular to the setting direction through the setting device, in which a strip-shaped cartridge magazine 14 is arranged.

Claims (5)

  1. Powder-actuated setting tool with a casing (1), a guide cylinder (2) displaceable relative to the casing (1), a driving piston (4) displaceably arranged in an internal bore (25) of the guide cylinder (2), a control pin (8) arranged on the guide cylinder (2) and projecting therefrom in the opposite direction to the setting direction, a mating surface (26), cooperating with the control pin (8) and pointing in the setting direction, of a firing pin (16) displaceable in the opposite direction to the setting direction against the force of a spring element (18), and a detent slide (19) operable by a trigger (15) and capable of being brought into positive connection with the firing pin (16) and by means of which the mating surface (26) is displaceable out of the axial plane of projection of the control pin (8), characterized in that a retaining pin (9) projecting into the bore of the guide cylinder (2) is arranged on the casing (1) so that the shortest distance (A3) between the retaining pin (9) and a bottom end (28) of the internal bore (25) pointing in the setting direction is equal to the length of the driving piston (4) between an end face pointing in the opposite direction to the setting direction and a stop face (29) pointing in the setting direction and co-operating with the retaining pin (9) and in that the minimum distance (A1) between the retaining pin (9) and the free end of the control pin (8) plus a play (S) is equal to the minimum distance (A2) between the retaining pin (9) and the mating surface (26) of the firing pin (16).
  2. Setting tool according to Claim 1, characterized in that the play (S) is less than 2 mm.
  3. Setting tool according to Claim 1, characterized in that the play (S) is 0.1 mm to 1 mm.
  4. Setting tool according to Claim 2 or Claim 3, characterized in that the play (S) is adjustable.
  5. Setting tool according to Claim 4, characterized in that the minimum distance (A1) is adjustable.
EP00810034A 1999-02-02 2000-01-14 Setting tool Expired - Lifetime EP1025960B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19903993 1999-02-02
DE19903993A DE19903993A1 (en) 1999-02-02 1999-02-02 Setting tool

Publications (2)

Publication Number Publication Date
EP1025960A1 EP1025960A1 (en) 2000-08-09
EP1025960B1 true EP1025960B1 (en) 2003-10-29

Family

ID=7896077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810034A Expired - Lifetime EP1025960B1 (en) 1999-02-02 2000-01-14 Setting tool

Country Status (8)

Country Link
US (1) US6126055A (en)
EP (1) EP1025960B1 (en)
JP (1) JP2000218569A (en)
KR (1) KR20000076495A (en)
AT (1) ATE252964T1 (en)
CA (1) CA2297429C (en)
DE (2) DE19903993A1 (en)
PL (1) PL191742B1 (en)

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AUPQ292499A0 (en) * 1999-09-17 1999-10-07 Cetram Pty Limited Power actuated tools
US6547120B1 (en) * 2000-10-12 2003-04-15 Illinois Tool Works Inc. Powder driven fastener setting tool
US6981630B2 (en) * 2000-10-12 2006-01-03 Illinois Tool Works Inc. Cartridge strip advancing mechanism for fastener driving tool
DE10105196B4 (en) * 2001-02-06 2013-09-26 Hilti Aktiengesellschaft setting tool
DE10107890A1 (en) * 2001-02-16 2002-09-05 Hilti Ag setting tool
DE10251307B4 (en) * 2002-11-04 2014-04-10 Hilti Aktiengesellschaft Internal combustion setting device
DE10253668B4 (en) * 2002-11-19 2015-03-05 Hilti Aktiengesellschaft Internal combustion setting device
FR2855542B1 (en) * 2003-05-26 2005-08-05 Freyssinet Int Stup METHOD FOR OVERLOCKING AT LEAST ONE TORON IN AN ANCHOR BLOCK AND SYSTEM FOR OVERLOCKING AT LEAST ONE TORON IN AN ANCHOR BLOCK
US7410137B2 (en) * 2003-08-18 2008-08-12 At&T Delaware Intellectual Property, Inc. Support device
US7077612B1 (en) 2003-08-22 2006-07-18 Bellsouth Intellectual Property Corp. Split p-hook
DE10341821B4 (en) * 2003-09-09 2012-03-01 Hilti Aktiengesellschaft setting tool
US7014087B1 (en) * 2003-10-16 2006-03-21 Bellsouth Intellectual Property Corporation Support guide for powder driver barrel
DE10355375A1 (en) * 2003-11-26 2005-06-30 Hilti Ag setting tool
US8002160B2 (en) 2004-08-30 2011-08-23 Black & Decker Inc. Combustion fastener
TWM361413U (en) * 2009-04-01 2009-07-21 Chung-Yi Lee Gunpowder actuated fastening tools
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CN109806515A (en) * 2019-03-11 2019-05-28 王帅玓 Unmanned plane fire-fighting launches explosion window breaker with microlight-type

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Also Published As

Publication number Publication date
JP2000218569A (en) 2000-08-08
US6126055A (en) 2000-10-03
CA2297429C (en) 2006-10-10
DE50004207D1 (en) 2003-12-04
PL191742B1 (en) 2006-06-30
DE19903993A1 (en) 2000-08-03
CA2297429A1 (en) 2000-08-02
PL338167A1 (en) 2000-08-14
EP1025960A1 (en) 2000-08-09
ATE252964T1 (en) 2003-11-15
KR20000076495A (en) 2000-12-26

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