EP0014828A1 - Explosive-powder operated bolt driving tool - Google Patents

Explosive-powder operated bolt driving tool Download PDF

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Publication number
EP0014828A1
EP0014828A1 EP80100117A EP80100117A EP0014828A1 EP 0014828 A1 EP0014828 A1 EP 0014828A1 EP 80100117 A EP80100117 A EP 80100117A EP 80100117 A EP80100117 A EP 80100117A EP 0014828 A1 EP0014828 A1 EP 0014828A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
handle
percussion hammer
housing
triggering
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.)
Withdrawn
Application number
EP80100117A
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German (de)
French (fr)
Inventor
Artur Welschehold
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.)
Rapid Befestigungstechnik & Co KG GmbH
Original Assignee
Rapid Befestigungstechnik & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rapid Befestigungstechnik & Co KG GmbH filed Critical Rapid Befestigungstechnik & Co KG GmbH
Publication of EP0014828A1 publication Critical patent/EP0014828A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a powder-operated bolt-actuating device, in particular for use in hard-to-reach places, with a housing containing devices for receiving and guiding the bolts, for feeding the cartridges, for tensioning and releasing the device and at least securing the loaded and tensioned device, also with an approximately perpendicular to the setting direction handle handle with actuating means for triggering.
  • a wide variety of designs are known for powder-operated bolt-setting tools. Their mode of operation is similar to that of small arms. They are usually loaded individually with bolts, while the cartridges can also be fed in a magazine. The fuses are generally designed so that the device is released by pressing on the setting point. The clamping and the cartridge change can also be done via a pressure mechanism or by means of separate clamping and cartridge changing devices.
  • a special type of stud setting device is used for setting studs in hard-to-reach places, for example in pipes or when attaching heat-insulating plates in the head parts of molds.
  • These devices have one handle handle attached to the housing, which is provided with actuating means for triggering the bolt setter, so that the device can be inserted into the opening, can be pressed against the handle handle and the setting process can be triggered.
  • actuating means for triggering the bolt setter
  • the device according to the invention makes it possible for the user of the bolt-setting tool to tension the device by pressing in the mandrel and to change the cartridge after the setting process. Since the mandrel is essentially axially parallel to the handle of the handle and is located on the opposite side of the housing, this process can be carried out by simply placing the device; the user does not have to change hands, change hands or operate a separate lever. The handling of the device is thus easier, more convenient and more rational for the user.
  • sliding surfaces on the mandrel and percussion hammer are provided as actuators between the mandrel and percussion hammer, which are wedge-shaped on both devices, so that when the mandrel is pressed into the housing, the wedge surface of the mandrel meets the wedge surface of the percussion hammer and the latter clamped against the ignition spring.
  • a lever mechanism can be arranged as the actuating member between the mandrel and the hammer, so that when the mandrel is pressed in, it acts on a lever arm, while the other lever arm acts on the hammer against the ignition spring tension and tensions the hammer.
  • the present invention is not limited to these two preferred embodiments; rather, other actuators can also be used nete, known mechanical means, such as ball displacement or the like, curved sliding surfaces, etc. are used.
  • FIGS. 1 to 3 show only the parts essential for the clamping process in a schematic representation. The change of the cartridge is not shown.
  • 1 means the housing of the bolt-setting tool
  • 2 the attachment for the handle
  • 3 the trigger pin for the process of setting the bolt, which is located in the handle and can be actuated by means of the handle
  • 4 the bolt guide, which is mechanical with the hammer guide 5 connected is.
  • the percussion hammer 6 and the ignition spring 7 are arranged within the percussion hammer guide.
  • the percussion hammer guide 5 has a pressure spring 8, and a locking slide 9 under spring pressure is provided as a backup.
  • 10 is the mandrel, by the actuation of which the tensioning process takes place and which is connected to the tensioning slide 11.
  • the mandrel with the 1o Spannsehieber 11 is, as is apparent upon a consideration of Figures 1, 2 and 3, in the Ge - housing axially parallel to the stick handle against the spring pressure displaceable. Its wedge-shaped sliding surface slides over the surface-parallel sliding surface of the hammer 6 and tensions it against the ignition spring 7. After the actuation of the mandrel has ended, the mandrel slides back into its initial position by spring force, as shown in FIG. Figures 1 to 3 also show the various working stages of the device. In Figure 1, the device is shown in a relaxed, not pressed state, in Figure 2 in the status of the end of the tensioning process, in Figure 3 in a tensioned, pressed and ready for the triggering of the setting process.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Explosive-powder operated bolt driving tool for use in locations to which access is difficult. The housing with devices for receiving and guiding the bolts, for feeding in the cartridges, for cocking and triggering the tool and with at least one safeguard against unintentional triggering, is provided with a stem handle extending perpendicularly to the driving direction, with actuating means for triggering, and has a pin which is under spring prestress and is mounted in such a way that it is displaceable essentially axially parallel to the stem handle in the housing and can be pressed in for cocking the tool, stressing the strike hammer against the ignition spring via actuating elements.

Description

Die vorliegende Erfindung betrifft ein pulverkraftbetriebenes Bolzensetzgerät, insbesondere zum Einsatz an schwer zugänglichen Stellen, mit einem Gehäuse, enthaltend Einrichtungen zur Aufnahme und Führung der Bolzen, zur Zuführung der Kartuschen, zum Spannen und Auslösen des Gerätes sowie mindestens einer Sicherung des geladenen und gespannten Gerätes, ferner mit einem etwa senkrecht zur Setzrichtung verlaufenden Stielgriff mit Betätigungsmitteln für die Auslösung.The present invention relates to a powder-operated bolt-actuating device, in particular for use in hard-to-reach places, with a housing containing devices for receiving and guiding the bolts, for feeding the cartridges, for tensioning and releasing the device and at least securing the loaded and tensioned device, also with an approximately perpendicular to the setting direction handle handle with actuating means for triggering.

Pulverkraftbetriebene Bolzensetzgeräte sind in den verschiedensten Ausführungen bekannt. Ihre Funktionsweise ähnelt denen der Handfeuerwaffen. Sie werden meist einzeln mit Bolzen geladen, während die Kartuschen auch magaziniert zugeführt werden können. Die Sicherungen sind im allgemeinen so konstruiert, dass das Gerät durch Andruck auf die Setzstelle entsichert wird. Das Spannen und der Kartuschenwechsel können ebenfalls über einen Andruckmechanismus erfolgen oder aber mittels gesonderter Spann- und Kartuschenwechselvorrichtungen.A wide variety of designs are known for powder-operated bolt-setting tools. Their mode of operation is similar to that of small arms. They are usually loaded individually with bolts, while the cartridges can also be fed in a magazine. The fuses are generally designed so that the device is released by pressing on the setting point. The clamping and the cartridge change can also be done via a pressure mechanism or by means of separate clamping and cartridge changing devices.

Eine besondere Ausführungsart der Bolzensetzgeräte wird für das Bolzensetzen an schwer zugänglichen Stellen, zum Beispiel in Rohren oder beim Befestigen von wärmeisolierenden Platten in den Kopfpartien von Kokillen, verwendet. Diese Geräte besitzen einen am Gehäuse befestigten Stielgriff, welcher mit Betätigungsmitteln für die Auslösung des Bolzensetzers versehen ist, so dass das Gerät in die öffnung eingeführt werden kann, über den Stielgriff anpressbar und der Setzvorgang auslösbar ist. Zwischen erneutem Spannen und zwischen Kartuschenwechsel nach dem Setzen werden die Geräte herausgehoben und es muss meist ein am Gehäuse angebauter Spannhebel betätigt werden. Dieses Verfahren ist jedoch rationell ungünstig. Es wurden daher bereits Geräte entwickelt, die den Spannmechanismus im Griff tragen. Das Spannen des Gerätes erfolgt dann durch die vorgesehene Griffbetätigung, zum Beispiel über einen Bowdenzug im Gehäuse. Diese Ausführungen sind in der Handhabung einfacher als die zuvorgenannten Geräte, jedoch sind die verlängerten mechanischen Spannbetätigungsmittel technisch anfällig; sie müssen ausserdem häufig nachgestellt werden.A special type of stud setting device is used for setting studs in hard-to-reach places, for example in pipes or when attaching heat-insulating plates in the head parts of molds. These devices have one handle handle attached to the housing, which is provided with actuating means for triggering the bolt setter, so that the device can be inserted into the opening, can be pressed against the handle handle and the setting process can be triggered. Between renewed clamping and between changing cartridges after setting, the devices are lifted out and a clamping lever attached to the housing usually has to be operated. However, this method is rationally unfavorable. Devices have therefore already been developed which hold the clamping mechanism under control. The device is then tensioned using the provided handle, for example via a Bowden cable in the housing. These designs are easier to handle than the aforementioned devices, but the extended mechanical clamping actuation means are technically susceptible; they also have to be adjusted frequently.

Es bestand daher die Aufgabe, ein pulverkraftbetriebenes Bolzensetzgerät zu entwickeln, das insbesondere zum Einsatz an schwer zugänglichen Stellen, zum Beispiel an Kokilleninnenwänden, geeignet ist und welches die Nachteile der bekannt gewordenen Ausführungen nicht besitzt, sondern einfach und zuverlässig zum Zwecke des Neuspannens nach dem Setzvorgang und zum Kartuschenwechsel betätigt werden kann.It was therefore the task of developing a powder-operated bolt-setting tool which is particularly suitable for use in hard-to-reach places, for example on mold inner walls, and which does not have the disadvantages of the designs which have become known, but rather simply and reliably for the purpose of re-tensioning after the setting process and can be used to change the cartridge.

Es wurde gefunden, dass diese Aufgabe dadurch gelöst werden kann, dass zum Spannen des Gerätes ein Dorn mit Federvorspannung vorgesehen ist, welcher im wesentlichen achsparallel und gegenüber vom Stielgriff im Gehäuse verschiebbar gelagert ist und über Betätigungsglieder mit dem Schlaghammer verbunden ist.It has been found that this object can be achieved in that a mandrel with spring preload is provided for tensioning the device, which is mounted essentially axially parallel and displaceable in relation to the handle of the handle in the housing and is connected to the impact hammer via actuators.

Die erfindungsgemässe Einrichtung ermöglicht es, dass der Benutzer des Bolzensetzgerätes nach dem Setzvorgang das Gerät durch Eindrücken des Dornes spannen und die Kartusche wechseln kann. Da der Dorn im wesentlichen achsparallel zum Stielgriff verläuft und sich auf der entgegengesetzten Seite des Gehäuses befindet, kann dieser Vorgang durch einfaches Aufsetzen des Gerätes erfolgen; der Benutzer braucht nicht umzugreifen, einen Handwechsel vorzunehmen oder einen gesonderten Hebel zu betätigen. Die Handhabung des Gerätes wird somit einfacher, für den Benutzer bequemer und rationeller.The device according to the invention makes it possible for the user of the bolt-setting tool to tension the device by pressing in the mandrel and to change the cartridge after the setting process. Since the mandrel is essentially axially parallel to the handle of the handle and is located on the opposite side of the housing, this process can be carried out by simply placing the device; the user does not have to change hands, change hands or operate a separate lever. The handling of the device is thus easier, more convenient and more rational for the user.

Nach einer besonderen Ausführungsform der Erfindung werden als Betätigungsglied zwischen Dorn und Schlaghammer zueinander parallel Gleitflächen auf Dorn und Schlaghammer vorgesehen, die auf beiden Einrichtungen keilig verlaufen, so dass beim Eindrücken des Dornes in das Gehäuse die Keilfläche des Dornes auf die Keilfläche des Schlaghammers trifft und diesen gegen die Zündfeder verspannt.According to a particular embodiment of the invention, sliding surfaces on the mandrel and percussion hammer are provided as actuators between the mandrel and percussion hammer, which are wedge-shaped on both devices, so that when the mandrel is pressed into the housing, the wedge surface of the mandrel meets the wedge surface of the percussion hammer and the latter clamped against the ignition spring.

Nach einer weiteren Ausführungsform der Erfindung kann als Betätigungsglied zwischen Dorn und Schlaghammer ein Hebelmechanismus angeordnet sein, so dass beim Eindrücken des Dornes dieser auf einen Hebelarm einwirkt, während der andere Hebelarm auf den Schlaghammer entgegen der Zündfederspannung einwirkt und den Schlaghammer spannt.According to a further embodiment of the invention, a lever mechanism can be arranged as the actuating member between the mandrel and the hammer, so that when the mandrel is pressed in, it acts on a lever arm, while the other lever arm acts on the hammer against the ignition spring tension and tensions the hammer.

Die vorliegende Erfindung ist jedoch nicht auf diese beiden bevorzugten Ausführungsformen beschränkt; vielmehr können als Betätigungsglieder auch andere geeignete, an sich bekannte mechanisch wirkende Mittel, wie zum Beispiel Kugelverdrängung oder dergleichen, gekrümmte Gleitflächen usw: eingesetzt werden.However, the present invention is not limited to these two preferred embodiments; rather, other actuators can also be used nete, known mechanical means, such as ball displacement or the like, curved sliding surfaces, etc. are used.

Die Erfindung soll an Hand der Zeichnungen Figuren 1 bis 3 beispielhaft verdeutlicht werden. Die Zeichnungen zeigen nur die für den Spannvorgang wesentlichen Teile in schematischer Darstellung. Nicht gezeigt wird das wechseln der Kartusche.The invention will be illustrated by way of example with reference to the drawings in FIGS. 1 to 3. The drawings show only the parts essential for the clamping process in a schematic representation. The change of the cartridge is not shown.

In den Zeichnungen bedeuten 1 das Gehäuse des Bolzensetzgerätes, 2 den Ansatz für den Stielgriff, 3 den Auslösestift für den Vorgang des Bolzensetzens, welcher sich im Stielgriff befindet und über Einrichtungen des Griffes betätigt werden kann, 4 die Bolzenführung,die mit der Schlaghammerführung 5 mechanisch verbunden ist. Innerhalb der Schlaghammerführung ist der Schlaghammer 6 und die Zündfeder 7 angeordnet. Die Schlaghammerführung 5 besitzt eine Andruckfeder 8, als Sicherung ist ein unter Federdruck stehender Sperrschieber 9 vorgesehen. 10 ist der Dorn, durch dessen Betätigung der Spannvorgang erfolgt und welcher mit dem Spannschieber 11 verbunden ist.In the drawings, 1 means the housing of the bolt-setting tool, 2 the attachment for the handle, 3 the trigger pin for the process of setting the bolt, which is located in the handle and can be actuated by means of the handle, 4 the bolt guide, which is mechanical with the hammer guide 5 connected is. The percussion hammer 6 and the ignition spring 7 are arranged within the percussion hammer guide. The percussion hammer guide 5 has a pressure spring 8, and a locking slide 9 under spring pressure is provided as a backup. 10 is the mandrel, by the actuation of which the tensioning process takes place and which is connected to the tensioning slide 11.

Der Dorn 1o mit dem Spannsehieber 11 ist, wie sich bei Betrachtung der Figuren 1, 2 und 3 ergibt, im Ge- häuse achsparallel zum Stielgriff gegen den Federdruck verschiebbar. Seine keilförmig verlaufende Gleitfläche gleitet dabei über die flächenparallel verlaufende Gleitfläche des Schlaghammers 6 und spannt diesen entgegen der Zündfeder 7. Nach Beendigung der Dornbetätigung gleitet der Dorn, wie in figur 3 gezeigt, durch Federkraft in seine Ausgangslage zurück. Die Figuren 1 bis 3 zeigen ausserdem die verschiedenen Arbeitsstadien des Gerätes. In Figur 1 ist das Gerät in entspanntem, nicht angedrücktem Zustand wiedergegeben, in Figur 2 im Statium der Beendigung des Spannvorganges, in Figur 3 in gespanntem, angedrücktem und für die Auslösung des Setzvorganges bereitem Zustand.The mandrel with the 1o Spannsehieber 11 is, as is apparent upon a consideration of Figures 1, 2 and 3, in the Ge - housing axially parallel to the stick handle against the spring pressure displaceable. Its wedge-shaped sliding surface slides over the surface-parallel sliding surface of the hammer 6 and tensions it against the ignition spring 7. After the actuation of the mandrel has ended, the mandrel slides back into its initial position by spring force, as shown in FIG. Figures 1 to 3 also show the various working stages of the device. In Figure 1, the device is shown in a relaxed, not pressed state, in Figure 2 in the status of the end of the tensioning process, in Figure 3 in a tensioned, pressed and ready for the triggering of the setting process.

Claims (3)

1. Pulverkraftbetriebenes Bolzensetzgerät, insbesondere zum Einsatz an schwer zugänglichen Stellen, mit einem Gehäuse, enthaltend Einrichtungen zur Aufnahme und Führung der Bolzen, zur Zuführung der Kartuschen, zum Spannen und Auslösen des Gerätes sowie mindestens einer Sicherung des geladenen und gespannten Gerätes, ferner mit einem etwa sentkrecht zur Setzrichtung verlaufenden Stielgriff mit Betätigungsmitteln für die Auslösung, dadurch gekennzeichnet, dass zum Spannen des Gerätes ein Dorn mit Federvorspannung vorgesehen ist, welcher im wesentlichen achsparallel und gegenüber vom Stielgriff im Gehäuse verschiebbar gelagert ist und über Betätigungsglieder mit dem Schlaghammer verbunden ist.1.Powder-operated bolt-actuating device, in particular for use in hard-to-reach places, with a housing containing devices for receiving and guiding the bolts, for feeding the cartridges, for tensioning and releasing the device and at least one securing device for the loaded and tensioned device, furthermore with a Approximately perpendicular to the setting direction handle handle with actuating means for triggering, characterized in that a mandrel with spring preload is provided for tensioning the device, which is mounted substantially axially parallel and displaceable in relation to the handle handle in the housing and is connected via actuators to the hammer. 2. Bolzensetzgerät nach Anspruch 1, dadurch gekennzeichnet, dass als Betätigungsglied zwischen Dorn und Schlaghammer parallele Gleitflächen auf Dorn und Schlaghammer vorgesehen sind, die keiligverlaufen, so dass beim Eindrücken des Dornes der Schlaghammer gegen die Zündfeder gespannt wird.2. Bolt setting device according to claim 1, characterized in that parallel sliding surfaces on the mandrel and percussion hammer are provided as the actuating member between the mandrel and percussion hammer, which wedge-shaped, so that the percussion hammer is tensioned against the ignition spring when the mandrel is pressed in. 3. Bolzensetzgerät nach Anspruch 1, dadurch gekennzeichnet, dass als Betätigungsglied zwischen Dorn und Schlaghammer ein Hebelmechanismus angeordnet ist, so dass beim Eindrücken des Dornes dieser auf einen Hebelarm einwirkt, während der andere Hebelarm auf den Schlaghammer entgegen der Zündfeder einwirkt und ihn spannt.3. Bolt-setting tool according to claim 1, characterized in that a lever mechanism is arranged as the actuating member between the mandrel and percussion hammer, so that when the mandrel is pressed in this acts on a lever arm, while the other lever arm acts on the percussion hammer against the ignition spring and tensions it.
EP80100117A 1979-02-06 1980-01-11 Explosive-powder operated bolt driving tool Withdrawn EP0014828A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792904364 DE2904364C2 (en) 1979-02-06 1979-02-06 Powder-powered bolt-firing tool with stick handle
DE2904364 1979-02-06

Publications (1)

Publication Number Publication Date
EP0014828A1 true EP0014828A1 (en) 1980-09-03

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ID=6062242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100117A Withdrawn EP0014828A1 (en) 1979-02-06 1980-01-11 Explosive-powder operated bolt driving tool

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EP (1) EP0014828A1 (en)
DE (1) DE2904364C2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534929A1 (en) * 1974-08-05 1976-02-19 Olin Corp FUEL BOLT SETTING DEVICE
DE2653104A1 (en) * 1975-12-09 1977-06-16 Prospection & Inventions DEVICE FOR ENCLOSING PINS IN INACCESSIBLE POINTS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925604A (en) * 1956-08-28 1960-02-23 Olin Mathieson Safety control means for explosively actuated tools
BE661823A (en) * 1964-03-30 1900-01-01
US3330108A (en) * 1965-08-16 1967-07-11 United Shoe Machinery Corp Explosively actuated tool
US3527395A (en) * 1966-10-31 1970-09-08 Oglebay Norton Co Explosively actuated fastening tool
DE1936740C3 (en) * 1969-07-18 1978-07-27 Hilti Ag, Schaan (Liechtenstein) Powder-powered fastening tool for hard-to-reach areas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534929A1 (en) * 1974-08-05 1976-02-19 Olin Corp FUEL BOLT SETTING DEVICE
DE2653104A1 (en) * 1975-12-09 1977-06-16 Prospection & Inventions DEVICE FOR ENCLOSING PINS IN INACCESSIBLE POINTS

Also Published As

Publication number Publication date
DE2904364A1 (en) 1980-08-14
DE2904364C2 (en) 1982-09-30

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