EP0077769B1 - Multi-purpose tool with exchangeable tool element - Google Patents

Multi-purpose tool with exchangeable tool element Download PDF

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Publication number
EP0077769B1
EP0077769B1 EP19820890148 EP82890148A EP0077769B1 EP 0077769 B1 EP0077769 B1 EP 0077769B1 EP 19820890148 EP19820890148 EP 19820890148 EP 82890148 A EP82890148 A EP 82890148A EP 0077769 B1 EP0077769 B1 EP 0077769B1
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EP
European Patent Office
Prior art keywords
tool
sleeve
tools
pick
adze
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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
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EP19820890148
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German (de)
French (fr)
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EP0077769A1 (en
Inventor
Peter Krösbacher
Johann Wetzinger
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Ing Franz Krosbacher Stahlwarenerzeugung KG
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Ing Franz Krosbacher Stahlwarenerzeugung KG
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Publication of EP0077769A1 publication Critical patent/EP0077769A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements

Definitions

  • the invention relates to a multipurpose device with a handle and an attached tool head carrying two interchangeable tools, the middle part of which is provided with a sleeve, each tool having a connecting section extending into the sleeve and the two connecting sections being screwed together within the sleeve.
  • each of the two impact inserts is provided with a connecting section which is screwed together in the interior of the sleeve.
  • a special anti-rotation device between the two impact inserts and between the impact inserts and the sleeve is not provided. This is not necessary in the case of hand hammers, on the striking inserts of which no torques generally act, but the bracing with the sleeve when screwing the striking inserts is sufficient.
  • a multi-purpose device that is suitable for a wide variety of applications, particularly in rescue operations, is described, for example, in US-A-4287623. It shows a tool head with two tools, one of which, an ax, is an integral part of the tool head, while the second can be selected from an abundance of tools and used on the tool head.
  • the invention has now set itself the task of creating a multipurpose device suitable especially for mountain and ice sports, in which not only a larger number of special tools can be used with the lowest possible weight, but also the tools in a special Requirements of mountain and ice sports with regard to functionality and interchangeability are sufficiently connected to the tool head.
  • this is achieved in that one of the two tools is inserted non-rotatably in the sleeve and that between the second tool and the sleeve there are provided two coaxial locking rings provided with interlocking corrugations, one of which is arranged on the connecting section of the second tool and the another is held against rotation on the sleeve, at least one locking ring being arranged axially resiliently.
  • the connecting section of the first tool preferably has a conical outer surface and the associated receiving area of the sleeve has a conical inner surface, the non-rotatable connection of this tool being formed, for example, by lugs engaging in grooves in the sleeve in the axial direction.
  • each tool is supported on the sleeve, since it is only indirectly connected to it. Nevertheless, the security of the attachment to the sleeve when the two tools are screwed to one another is significantly increased since, due to the conical fit of the first tool, the second tool supporting the sleeve causes both tools to be strongly pressed against the sleeve. After loosening the screw connection, the first tool pressed into the conical receiving area of the sleeve can also be easily loosened again by striking the second tool. Furthermore, the connecting sections of the tools used are encapsulated in the sleeve surrounding them against external influences, such as dirt and damage, during use of the device. There are therefore a number of significant advantages over known multi-purpose devices and combination tools, which enable the use of the multi-purpose device according to the invention also in mountain and ice sports.
  • the axial suspension of the retaining ring can be achieved, for example, by the interposition of a rubber ring or the like.
  • the unwanted, accidental solution of the connection is therefore almost impossible, so that the safety of the mountaineer is significantly increased and there are no noticeable differences from the previous individual special tools when using the multi-purpose device.
  • the screwing of the two tools requires special training of certain tools, for example the pick shovel, the cutting edge of which is to take up a certain position relative to the tool handle. Since this cannot always be achieved due to the screw connection, it is further provided according to the invention that the pimple blade is formed by a piece of pipe with a perforated wall that widens conically towards the end opposite its connecting section. The rotationally symmetrical formation of the pick shovel formed in this way ensures their use regardless of the angle of rotation of the screw connection.
  • a multi-purpose device - an ice ax - has a handle 1 and a tool head 2 according to FIG. 1, which are connected to one another in a conventional manner.
  • the tool head 2 is composed of the central part 3 with the handle attachment and two tools 14, 15, which are interchangeable with other tools.
  • the central part 3 as can be seen more clearly from FIG. 2, has a sleeve 4 with a conical inner surface 8 which merges on the tapered side into an annular extension 5 into which four bores 6 open radially.
  • At the other end of the sleeve 4 at least two, possibly also a plurality of grooves 7 are let into the wall on the end face.
  • the tools 14, 15 which are inserted into the sleeve 4 are connected directly to one another in the interior of the sleeve 4.
  • the first tool 14 has, as the connecting section 11, an insertion pin, the conical outer surface 25 of which is adapted to the conical inner surface 8 of the sleeve 4.
  • the taper of the surfaces 8, 25 is selected so that the tool 14 can be easily removed from the sleeve 4 even after heavy loading.
  • the conical insertion pin is provided with a threaded bore 12.
  • two lugs 16 are formed on the tool 14, which engage in the grooves 7 of the sleeve 4 and thus hold the tool 14 in the sleeve 4 in a manner fixed against rotation.
  • a usual hole 17 in the tool 14 can also serve for easier loosening of the tool.
  • 7 and 8 show two examples of interchangeable tools, namely special designs of pimple skin, which differ in the angle and the toothing. 8 has a special design of the tip, which is designed as a groove 24, the two side cheeks of which bear the toothing. This pick ax is particularly suitable for water-bearing ice, since a drain channel is created by the fillet 24.
  • 5 and 6 show examples of such second tools 15, namely a hammer 20 and a pick shovel 21.
  • the second tools 15 also have holes 18 which are used, among other things, for loosening or tightening.
  • the pimple blade 21 according to FIG. 6 is formed by a tube piece which widens towards the free end and ends in a circumferential cutting edge 26. As a result, the pick ax 21 can be used regardless of its rotational position.
  • the screw connection of the two connecting sections 11, 13 is secured on the one hand via the already mentioned lugs 16 of the first tool 14, which bring about the non-rotatable mounting between the first tool 14 and the sleeve 4, and on the other hand via two retaining rings 10, which are between the second Tool 15 and the sleeve 4 are effective.
  • the sleeve 4 has an annular extension 5 into which radial bores 6 open.
  • the extension 5 serves to receive a rubber ring 9 or the like.
  • the retaining rings 10 (FIGS. 3, 4) are radially corrugated and have bent tabs 19, the ends of which after insertion into the extension 5 in the holes 6 are bent back (see dashed line in Fig. 4).
  • An annular groove 27 corresponding to the extension 5 with radial bores 28 is also provided on the mounting side of each second tool 15, into which a rubber ring 9 or the like and the second locking ring 10 are also inserted and secured against rotation by bending the tabs 19.
  • the locking rings 10 projecting with their wave crests over the end faces of the sleeve 4 and the second tool 15 come into contact with one another.
  • the further rotation of the second tool 15 allows a wave crest of a circlip 10 to lock continuously in the trough of the other circlip 10, the rubber rings 9 each serving as axially acting spring elements which allow the circlips 10 to slightly deviate.
  • the second tools 15 connected in this manner in a rotationally secure manner to the sleeve 4 cannot loosen automatically during use, but can only be unscrewed deliberately, for which purpose each tool 14, 15 is suitable.
  • the second tools 15 have holes 18 that are at least large enough that the connecting section 13 of the tool to be replaced can be used for loosening.
  • the tip sections of the pick ax 22, 23 are also suitable for this purpose.
  • the multipurpose device according to the invention offers the advantage, in particular for the mountaineer, of having a larger number of special tools available for the different areas of application and operating conditions and of being able to use them in the best possible combination without having to accept the disadvantages of a significant increase in luggage weight and the larger space requirement to have to.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

Die Erfindung betrifft ein Mehrzweckgerät mit einem Stiel und einem daran befestigten, zwei austauschbare Werkzeuge tragenden Werkzeugkopf, dessen Mittelteil mit einer Hülse versehen ist, wobei jedes Werkzeug einen sich in die Hülse erstreckenden Verbindungsabschnitt aufweist und die beiden Verbindungsabschnitte innerhalb der Hülse miteinander verschraubt sind.The invention relates to a multipurpose device with a handle and an attached tool head carrying two interchangeable tools, the middle part of which is provided with a sleeve, each tool having a connecting section extending into the sleeve and the two connecting sections being screwed together within the sleeve.

Aus der DE-A-1 803 519 ist ein Hammer bekanntgeworden, dessen Werkzeugkopf mit austauschbaren Schlageinsätzen bestückbar ist. Dabei ist in einer Ausführungsform jeder der beiden Schlageinsätze mit einem Verbindungsabschnitt versehen, die im Inneren der Hülse miteinander verschraubt sind. Eine spezielle Verdrehsicherung der beiden Schlageinsätze untereinander sowie zwischen den Schlageinsätzen und der Hülse ist dabei nicht vorgesehen. Dies ist bei Handhämmern, auf deren Schlageinsätze im allgemeinen keine Drehmomente wirken, nicht notwendig, sondern es genügt die Verspannung mit der Hülse beim Verschrauben der Schlageinsätze.From DE-A-1 803 519 a hammer has become known, the tool head of which can be equipped with exchangeable striking inserts. In one embodiment, each of the two impact inserts is provided with a connecting section which is screwed together in the interior of the sleeve. A special anti-rotation device between the two impact inserts and between the impact inserts and the sleeve is not provided. This is not necessary in the case of hand hammers, on the striking inserts of which no torques generally act, but the bracing with the sleeve when screwing the striking inserts is sufficient.

Ein Mehrzweckgerät, das für die verschiedensten Anwendungen, insbesondere im Rettungseinsatz, geeignet ist, ist beispielsweise in der US-A-4287623 beschrieben. Es zeigt einen Werkzeugkopf mit zwei Werkzeugen, von denen eines, eine Axt, einen festen Bestandteil des Werkzeugkopfes darstellt, während das zweite aus einer Fülle von Werkzeugen ausgewählt und am Werkzeugkopf eingesetzt werden kann.A multi-purpose device that is suitable for a wide variety of applications, particularly in rescue operations, is described, for example, in US-A-4287623. It shows a tool head with two tools, one of which, an ax, is an integral part of the tool head, while the second can be selected from an abundance of tools and used on the tool head.

Für den Bergsteiger und Eisgeher sind spezielle Geräte, wie Eispickel, Eishammer und Eisbeile, entwickelt worden, wobei jeweils verschiedene Ausführungen für verschiedene Gegebenheiten verwendet werden. So sind zum Beispiel beim Eispickel sowohl für die Pickelhaue als auch für die Pickelschaufel eine Reihe von unterschiedlichen Formgebungen bekannt, die jeweils für spezielles Gelände bestimmt sind. Da jedoch bei Berg- und Klettertouren im allgemeinen das Gelände mehrmals wechselt, wäre es erforderlich, mehrere derartige Geräte mitzuführen, um jeweils das geeignetste Werkzeug einsetzen zu können. Dies ist jedoch vor allem aus Gewichts-und Raumgründen kaum möglich, so daß, da hierzu geeignete Mehrzweckgeräte noch nicht bekannt sind, ein für die Sicherheit des Bergsteigers ungünstiger Kompromiß gewählt wird.For mountaineers and ice hikers, special devices such as ice axes, ice hammers and ice axes have been developed, with different versions being used for different circumstances. For example, a number of different shapes are known for the ice ax, both for the pick ax and for the pick blade, which are each intended for special terrain. However, since the terrain changes several times during mountain and climbing tours in general, it would be necessary to carry several such devices in order to be able to use the most suitable tool. However, this is hardly possible, especially for reasons of weight and space, so that since suitable multi-purpose devices are not yet known, a compromise which is unfavorable for the safety of the climber is chosen.

Die Erfindung hat es sich nun zur Aufgabe gestellt, ein vor allem für den Berg- und Eissport geeignetes Mehrzweckgerät zu schaffen, bei dem nicht nur eine größere Anzahl der speziellen Werkzeuge bei möglichst geringem Gewicht einsetzbar ist, sondern die Werkzeuge darüber hinaus in einer den besonderen Anforderungen des Berg- und Eissports hinsichtlich der Funktionstüchtigkeit und Austauschbarkeit genügenden Weise mit dem Werkzeugkopf verbunden sind.The invention has now set itself the task of creating a multipurpose device suitable especially for mountain and ice sports, in which not only a larger number of special tools can be used with the lowest possible weight, but also the tools in a special Requirements of mountain and ice sports with regard to functionality and interchangeability are sufficiently connected to the tool head.

Erfindungsgemäß wird dies dadurch erreicht, daß eines der beiden Werkzeuge verdrehfest in die Hülse eingesetzt ist und daß zwischen dem zweiten Werkzeug und der Hülse zwei koaxiale, mit ineinandergreifenden Wellungen versehene Sicherungsringe vorgesehen sind, von denen einer auf dem Verbindungsabschnitt des zweiten Werkzeugs angeordnet ist und der andere an der Hülse verdrehfest gehalten ist, wobei zumindest ein Sicherungsring axial federnd angeordnet ist.According to the invention this is achieved in that one of the two tools is inserted non-rotatably in the sleeve and that between the second tool and the sleeve there are provided two coaxial locking rings provided with interlocking corrugations, one of which is arranged on the connecting section of the second tool and the another is held against rotation on the sleeve, at least one locking ring being arranged axially resiliently.

Der Verbindungsabschnitt des ersten Werkzeugs weist bevorzugt eine konische Außenfläche und der zugeordnete Aufnahmebereich der Hülse eine konische Innenfläche auf, wobei die verdrehfeste Verbindung dieses Werkzeugs etwa durch in Nuten der Hülse in axialer Richtung angreifende Nasen gebildet ist.The connecting section of the first tool preferably has a conical outer surface and the associated receiving area of the sleeve has a conical inner surface, the non-rotatable connection of this tool being formed, for example, by lugs engaging in grooves in the sleeve in the axial direction.

Dadurch stützt sich jedes Werkzeug an der Hülse ab, da es nur indirekt mit ihr verbunden ist. Dennoch ist die Sicherheit der Befestigung an der Hülse bei der Verschraubung der beiden Werkzeuge untereinander wesentlich erhöht, da bedingt durch den konischen Paßsitz des ersten Werkzeugs, das an der Hülse abstützende zweite Werkzeug eine starke Anpressung beider Werkzeuge an die Hülse bewirkt. Nach dem Lockern der Schraubenverbindung läßt sich das in den konischen Aufnahmebereich der Hülse eingepreßte erste Werkzeug durch einen Schlag auf das zweite Werkzeug aber auch wieder leicht lösen. Weiters sind die Verbindungsabschnitte der eingesetzten Werkzeuge in der sie umgebenden Hülse gegen äußere Einflüsse, wie Verschmutzung und Beschädigung, während der Verwendung des Gerätes abgekapselt. Es ergeben sich daher eine Reihe von wesentlichen Vorteilen gegenüber bekannten Mehrzweckgeräten und Kombinationswerkzeugen, die die Verwendung des erfindungsgemäßen Mehrzweckgerätes auch im Berg- und Eissport ermöglichen.As a result, each tool is supported on the sleeve, since it is only indirectly connected to it. Nevertheless, the security of the attachment to the sleeve when the two tools are screwed to one another is significantly increased since, due to the conical fit of the first tool, the second tool supporting the sleeve causes both tools to be strongly pressed against the sleeve. After loosening the screw connection, the first tool pressed into the conical receiving area of the sleeve can also be easily loosened again by striking the second tool. Furthermore, the connecting sections of the tools used are encapsulated in the sleeve surrounding them against external influences, such as dirt and damage, during use of the device. There are therefore a number of significant advantages over known multi-purpose devices and combination tools, which enable the use of the multi-purpose device according to the invention also in mountain and ice sports.

Die axiale Federung des Sicherungsringes kann dabei beispielsweise durch die Zwischenlage eines Gummiringes od. dgl. erzielt werden. Die ungewollte, zufällige Lösung der Verbindung ist daher nahezu unmöglich, so daß die Sicherheit des Bergsteigers wesentlich erhöht wird und sich beim Einsatz des Mehrzweckgerätes keine fühlbaren Unterschiede zu den bisherigen einzelnen Spezialwerkzeugen ergeben.The axial suspension of the retaining ring can be achieved, for example, by the interposition of a rubber ring or the like. The unwanted, accidental solution of the connection is therefore almost impossible, so that the safety of the mountaineer is significantly increased and there are no noticeable differences from the previous individual special tools when using the multi-purpose device.

Die Verschraubung der beiden Werkzeuge erfordert eine besondere Ausbildung gewisser Werkzeuge, beispielsweise der Pickelschaufel, deren Schneide eine bestimmte Lage zum Werkzeugstiel einnehmen soll. Da diese auf Grund der Verschraubung nicht immer erreicht werden kann, ist erfindungsgemäß weiter vorgesehen, daß die Pickelschaufel durch ein sich konisch zu dem ihrem Verbindungsabschnitt gegenüberliegenden Ende hin erweiterndes Rohrstück mit durchbrochener Wandung gebildet ist. Die auf diese Weise gebildete rotationssymmetrische Ausbildung der Pickelschaufel gewährleistet ih ren Einsatz unabhängig vom Drehwinkel der Verschraubung.The screwing of the two tools requires special training of certain tools, for example the pick shovel, the cutting edge of which is to take up a certain position relative to the tool handle. Since this cannot always be achieved due to the screw connection, it is further provided according to the invention that the pimple blade is formed by a piece of pipe with a perforated wall that widens conically towards the end opposite its connecting section. The rotationally symmetrical formation of the pick shovel formed in this way ensures their use regardless of the angle of rotation of the screw connection.

Nachstehend wird nun die Erfindung an Hand der Figuren der Zeichnungen näher beschrieben, ohne darauf beschränkt zu sein.

  • Fig. 1 zeigt den Kopf des erfindungsgemäßen Mehrzweckgerätes im Längsschnitt;
  • Fig. 2 einen Längsschnitt durch den Mittelteil des Werkzeugkopfes,
  • Fig. 3 und 4 eine Sicherungsscheibe in Draufsicht und im Schnitt und die
  • Fig. 5 bis 8 zeigen verschiedene austauschbare Werkzeuge.
The invention will now be described below of the figures of the drawings described in more detail without being limited thereto.
  • Fig. 1 shows the head of the multi-purpose device according to the invention in longitudinal section;
  • 2 shows a longitudinal section through the central part of the tool head,
  • 3 and 4 a locking washer in plan view and in section and
  • 5 to 8 show different interchangeable tools.

Ein erfindungsgemäßes Mehrzweckgerät - ein Eispickel - weist gemäß Fig. 1 einen Stiel 1 und einen Werkzeugkopf 2 auf, die in herkömmlicher Weise miteinander verbunden sind. Der Werkzeugkopf 2 setzt sich aus dem Mittelteil 3 mit der Stielbefestigung und zwei Werkzeugen 14, 15 zusammen, die gegen andere Werkzeuge austauschbar sind. Der Mittelteil 3 weist, wie aus Fig. 2 besser ersichtlich ist, eine Hülse 4 mit einer kegeligen Innenfläche 8 auf, die an der verjüngten Seite in eine ringförmige Erweiterung 5 übergeht, in die radial vier Bohrungen 6 münden. Am anderen Ende der Hülse 4 sind in die Wandung stirnseitig zumindest zwei, gegebenenfalls auch mehrere Nuten 7 eingelassen.A multi-purpose device according to the invention - an ice ax - has a handle 1 and a tool head 2 according to FIG. 1, which are connected to one another in a conventional manner. The tool head 2 is composed of the central part 3 with the handle attachment and two tools 14, 15, which are interchangeable with other tools. The central part 3, as can be seen more clearly from FIG. 2, has a sleeve 4 with a conical inner surface 8 which merges on the tapered side into an annular extension 5 into which four bores 6 open radially. At the other end of the sleeve 4, at least two, possibly also a plurality of grooves 7 are let into the wall on the end face.

Die Werkzeuge 14,15, die in die Hülse 4 eingesetzt werden, sind unmittelbar miteinander im Inneren der Hülse 4 verbunden. Das erste Werkzeug 14 weist als Verbindungsabschnitt 11 einen Einsteckzapfen auf, dessen konische Außenfläche 25 an die konische Innenfläche 8 der Hülse 4 angepaßt ist. Die Konizität der Flächen 8, 25 ist so gewählt, daß das Werkzeug 14 auch nach starker Belastung leicht aus der Hülse 4 gelöst werden kann. Der konische Einsteckzapfen ist mit einer Gewindebohrung 12 versehen. Am Werkzeug 14 sind weiters noch zwei Nasen 16 ausgebildet, die in die Nuten 7 der Hülse 4 eingreifen und so das Werkzeug 14 verdrehfest in der Hülse 4 halten. Ein übliches Loch 17 im Werkzeug 14 kann zusätzlich auch zum leichteren Lösen des Werkzeugs dienen. Die Fig. 7 und 8 zeigen zwei Beispiele von austauschbaren Werkzeugen, nämlich besondere Ausführungen von Pickelhauen, die sich in der Abwinkelung und der Verzahnung unterscheiden. Die Pickelhaue nach Fig. 8 weist eine besondere Ausführung der Spitze auf, die als Hohlkehle 24 ausgebildet ist, deren beide Seitenwangen die Verzahnung tragen. Diese Pickelhaue eignet sich insbesondere für wasserführendes Eis, da durch die Hohlkehle 24 ein Abflußkanal geschaffen wird.The tools 14, 15 which are inserted into the sleeve 4 are connected directly to one another in the interior of the sleeve 4. The first tool 14 has, as the connecting section 11, an insertion pin, the conical outer surface 25 of which is adapted to the conical inner surface 8 of the sleeve 4. The taper of the surfaces 8, 25 is selected so that the tool 14 can be easily removed from the sleeve 4 even after heavy loading. The conical insertion pin is provided with a threaded bore 12. Furthermore, two lugs 16 are formed on the tool 14, which engage in the grooves 7 of the sleeve 4 and thus hold the tool 14 in the sleeve 4 in a manner fixed against rotation. A usual hole 17 in the tool 14 can also serve for easier loosening of the tool. 7 and 8 show two examples of interchangeable tools, namely special designs of pimple skin, which differ in the angle and the toothing. 8 has a special design of the tip, which is designed as a groove 24, the two side cheeks of which bear the toothing. This pick ax is particularly suitable for water-bearing ice, since a drain channel is created by the fillet 24.

Jedes zweite Werkzeug 15, das in die zweite Seite der Hülse 4 eingesetzt wird, weist als Verbindungsabschnitt 13 einen Gewindezapfen auf, der in die Gewindebohrung 12 des Verbindungsabschnittes 11 des ersten Werkzeugs 14 einschraubbar ist. Fig. 5 und 6 zeigen Beispiele derartiger zweiter Werkzeuge 15, nämlich einen Hammer 20 und eine Pickelschaufel 21. Auch die zweiten Werkzeuge 15 besitzen Löcher 18, die unter anderem zum Lösen oder Festziehen dienen. Die Pickelschaufel 21 gemäß Fig. 6 wird durch ein sich zum freien Ende hin erweiterndes Rohrstück gebildet, das in eine umlaufende Schneide 26 ausläuft. Dadurch kann die Pickelschaufel 21 unabhängig von ihrer Drehstellung eingesetzt werden.Every second tool 15, which is inserted into the second side of the sleeve 4, has, as the connecting section 13, a threaded pin which can be screwed into the threaded bore 12 of the connecting section 11 of the first tool 14. 5 and 6 show examples of such second tools 15, namely a hammer 20 and a pick shovel 21. The second tools 15 also have holes 18 which are used, among other things, for loosening or tightening. The pimple blade 21 according to FIG. 6 is formed by a tube piece which widens towards the free end and ends in a circumferential cutting edge 26. As a result, the pick ax 21 can be used regardless of its rotational position.

Die Sicherung der Verschraubung der beiden Verbindungsabschnitte 11, 13 erfolgt einerseits über die bereits erwähnten Nasen 16 des ersten Werkzeugs 14, die die verdrehfeste Halterung zwischen dem ersten Werkzeug 14 und der Hülse 4 bewirken, und zum anderen über zwei Sicherungsringe 10, die zwischen dem zweiten Werkzeug 15 und der Hülse 4 wirksam sind. Die Hülse 4 weist, wie erwähnt, eine ringförmige Erweiterung 5 auf, in die radiale Bohrungen 6 münden. Die Erweiterung 5 dient zur Aufnahme eines Gummiringes 9 od. dgl. sowie einer der beiden Sicherungsringe 10. Die Sicherungsringe 10 (Fig. 3,4) sind radial gewellt und weisen abgebogene Laschen 19 auf, deren Enden nach dem Einsetzen in die Erweiterung 5 in die Bohrungen 6 zurückgebogen werden (siehe strichlierte Darstellung in Fig. 4). Eine der Erweiterung 5 entsprechende Ringnut 27 mit radialen Bohrungen 28 ist auch an der Montageseite jedes zweiten Werkzeugs 15 vorgesehen, in die ebenfalls ein Gummiring 9 od. dgl. sowie der zweite Sicherungsring 10 eingesetzt und durch Verbiegen der Laschen 19 drehgesichert wird.The screw connection of the two connecting sections 11, 13 is secured on the one hand via the already mentioned lugs 16 of the first tool 14, which bring about the non-rotatable mounting between the first tool 14 and the sleeve 4, and on the other hand via two retaining rings 10, which are between the second Tool 15 and the sleeve 4 are effective. As mentioned, the sleeve 4 has an annular extension 5 into which radial bores 6 open. The extension 5 serves to receive a rubber ring 9 or the like. As well as one of the two retaining rings 10. The retaining rings 10 (FIGS. 3, 4) are radially corrugated and have bent tabs 19, the ends of which after insertion into the extension 5 in the holes 6 are bent back (see dashed line in Fig. 4). An annular groove 27 corresponding to the extension 5 with radial bores 28 is also provided on the mounting side of each second tool 15, into which a rubber ring 9 or the like and the second locking ring 10 are also inserted and secured against rotation by bending the tabs 19.

Wird nun das zweite Werkzeug 15 mit seinem Verbindungsabschnitt 13 in die Gewindebohrung 12 des Verbindungsabschnittes 11 des ersten Werkzeugs 14 eingeschraubt, so kommen die mit ihren Wellenbergen über die Stirnflächen der Hülse 4 und des zweiten Werkzeugs 15 vorspringenden Sicherungsringe 10 aneinander zur Anlage. Die weitere Drehung des zweiten Werkzeugs 15 läßt jeweils einen Wellenberg eines Sicherungsringes 10 im Wellental des anderen Sicherungsringes 10 fortlaufend verrasten, wobei die Gummiringe 9 jeweils als axial wirkende Federelemente dienen, die die Sicherungsringe 10 geringfügig ausweichen lassen. Die auf diese Weise drehsicher mit der Hülse 4 verbundenen zweiten Werkzeuge 15 können bei Gebrauch sich nicht selbsttätig lösen, sondern nur bewußt abgeschraubt werden, wofür sich jedes Werkzeug 14, 15 eignet. Die zweiten Werkzeuge 15 haben zumindest so große Löcher 18, daß der Verbindungsabschnitt 13 des auszutauschenden Werkzeugs zum Lösen eingesetzt werden kann. Ebenso sind auch beispielsweise die Spitzenabschnitte der Pickelhauen 22,23 dazu geeignet.If the second tool 15 is now screwed with its connecting section 13 into the threaded bore 12 of the connecting section 11 of the first tool 14, the locking rings 10 projecting with their wave crests over the end faces of the sleeve 4 and the second tool 15 come into contact with one another. The further rotation of the second tool 15 allows a wave crest of a circlip 10 to lock continuously in the trough of the other circlip 10, the rubber rings 9 each serving as axially acting spring elements which allow the circlips 10 to slightly deviate. The second tools 15 connected in this manner in a rotationally secure manner to the sleeve 4 cannot loosen automatically during use, but can only be unscrewed deliberately, for which purpose each tool 14, 15 is suitable. The second tools 15 have holes 18 that are at least large enough that the connecting section 13 of the tool to be replaced can be used for loosening. The tip sections of the pick ax 22, 23 are also suitable for this purpose.

Das erfindungsgemäß Mehrzweckgerät bietet insbesondere für den Bergsteiger den Vorteil, eine größere Anzahl von Spezialwerkzeugen für die unterschiedlichen Einsatzgebiete und Einsatzbedingungen zur Verfügung zu haben und in der bestmöglichen Kombination anwenden zu können, ohne die Nachteile einer wesentlichen Gewichtserhöhung des Gepäcks und des größeren Raumbedarfs in Kauf nehmen zu müssen.The multipurpose device according to the invention offers the advantage, in particular for the mountaineer, of having a larger number of special tools available for the different areas of application and operating conditions and of being able to use them in the best possible combination without having to accept the disadvantages of a significant increase in luggage weight and the larger space requirement to have to.

Claims (2)

1. Multi-purpose device comprising a shaft and a tool head (2) fastened thereto and carrying two exchangeable tools (14, 15), the center part (3) of said tool head being provided with a sleeve (4), each tool (14,15) having a connecting portion (11, 13) extending into the sleeve (4), and the two connecting portions (11, 13) being screwed to each other within the sleeve (4), characterized in that one of the two tools (14) is unrotatably inserted into the sleeve (4), and that between the second tool (15) and the sleeve (4) two coaxial securing rings (10) with interlocking corrugations are provided, one of said securing rings being arranged on the connecting portion (13) of the second tool, and the other one being unrotatably held at the sleeve (4), at least one securing ring (10) being axially resiliently arranged.
2. Multi-purpose device according to claim 1, in which the second tool is a pick adze, characterized in that the pick adze (21) is formed by a tube member with a perforated wall which widens conically towards the end opposite the connecting portion (13) of said pick adze.
EP19820890148 1981-10-19 1982-10-15 Multi-purpose tool with exchangeable tool element Expired EP0077769B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4459/81 1981-10-19
AT445981A AT377917B (en) 1981-10-19 1981-10-19 MULTI-PURPOSE DEVICE WITH INTERCHANGEABLE TOOL

Publications (2)

Publication Number Publication Date
EP0077769A1 EP0077769A1 (en) 1983-04-27
EP0077769B1 true EP0077769B1 (en) 1985-06-19

Family

ID=3564298

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19820903028 Pending EP0091446A1 (en) 1981-10-19 1982-10-15 Multiple use apparatus with interchangeable tools
EP19820890148 Expired EP0077769B1 (en) 1981-10-19 1982-10-15 Multi-purpose tool with exchangeable tool element

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19820903028 Pending EP0091446A1 (en) 1981-10-19 1982-10-15 Multiple use apparatus with interchangeable tools

Country Status (4)

Country Link
EP (2) EP0091446A1 (en)
AT (1) AT377917B (en)
DE (1) DE3264301D1 (en)
WO (1) WO1983001405A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546100B1 (en) * 1983-05-17 1992-02-28 Racodon Sa Expl PUNCHES WITH INTERCHANGEABLE BLADES, ESPECIALLY USEFUL FOR UNLOCKING DOORS AND CAR TRUNKS
FR2627989B2 (en) * 1987-11-27 1990-07-20 Simond Ludger Sa HEADLESS PIOLET
FR2623721B1 (en) * 1987-11-27 1990-04-06 Simond Ludger Sa HEADLESS PIOLET
AT460U1 (en) * 1995-01-23 1995-11-27 Stubai Werkzeugind MULTI-PURPOSE DEVICE WITH INTERCHANGEABLE TOOL
CN113336042B (en) * 2021-06-11 2023-01-03 张家港鑫菱机械有限公司 Double-layer elevator guide rail

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE335462C (en) * 1919-10-30 1921-05-25 Paul Gerhards Tool containing a pick and pick
DE335463C (en) * 1920-02-26 1921-05-25 Paul Gerhards Tool containing a pick and pick
US2487696A (en) * 1947-12-06 1949-11-08 Coffing Hoist Company Combination tool and handle
FR1469196A (en) * 1965-12-31 1967-02-10 Multi-purpose portable tool
DE6802608U (en) * 1967-10-19 1973-05-24 Thor Hammer Co Ltd HAMMER.
DE2830945C2 (en) * 1976-04-22 1986-11-20 Gardena Kress + Kastner Gmbh, 7900 Ulm System of various garden and household tools
US4287623A (en) * 1979-03-23 1981-09-08 Tarran Phil K Emergency rescue axe device

Also Published As

Publication number Publication date
WO1983001405A1 (en) 1983-04-28
ATA445981A (en) 1984-10-15
DE3264301D1 (en) 1985-07-25
AT377917B (en) 1985-05-28
EP0077769A1 (en) 1983-04-27
EP0091446A1 (en) 1983-10-19

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