EP0830920A1 - Fastening tool and a returning spring therefor - Google Patents

Fastening tool and a returning spring therefor Download PDF

Info

Publication number
EP0830920A1
EP0830920A1 EP97115895A EP97115895A EP0830920A1 EP 0830920 A1 EP0830920 A1 EP 0830920A1 EP 97115895 A EP97115895 A EP 97115895A EP 97115895 A EP97115895 A EP 97115895A EP 0830920 A1 EP0830920 A1 EP 0830920A1
Authority
EP
European Patent Office
Prior art keywords
spring
bolt
piston
reinforcing elements
driving piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97115895A
Other languages
German (de)
French (fr)
Other versions
EP0830920B1 (en
Inventor
Gerd Dr. Kellner
Axel Ziegler
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.)
Adolf Wuerth GmbH and Co KG
Original Assignee
Adolf Wuerth GmbH and Co KG
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 Adolf Wuerth GmbH and Co KG filed Critical Adolf Wuerth GmbH and Co KG
Priority to DK97115895T priority Critical patent/DK0830920T3/en
Publication of EP0830920A1 publication Critical patent/EP0830920A1/en
Application granted granted Critical
Publication of EP0830920B1 publication Critical patent/EP0830920B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil

Definitions

  • the invention is based on a bolt setting or pushing device, with the help of a fastener, usually in Form of a nail or bolt, can be set.
  • the bolt pusher contains a propellant piston which is driven by the propellant gases after ignition of a cartridge is driven and drives the bolt through its feed movement.
  • a bolt-driving tool of this type is already known (US-PS 3 331 546), for which purpose a large number of disc springs arranged around a piston rod of a driving piston is.
  • the disc springs are preferably made of polyurethane and are alternately arranged in reverse so that a Disc spring package made of disc springs that are not connected results.
  • the invention has for its object a bolt-driving tool to create, in which the driving piston after setting the fastener is reset and the device has a long service life without changing the spring.
  • the invention is also based on the object of a spring to create for such a bolt gun.
  • the invention proposes a bolt-setting tool with the features mentioned in claim 1 and a spring for this with the features mentioned in claim 15 in front. Developments of the invention are the subject of dependent claims.
  • the Driving piston a piston rod with a reduced diameter has at least part of its length from the sleeve-like spring is surrounded.
  • the spring proposed by the invention is used during assembly of the device simply placed over the piston rod and the device is then assembled. You no longer have to pay attention to it be that the individual disc springs always alternate be used in the reverse position.
  • the spring between you the movement of the driving piston non-participating device part and the driving piston extends.
  • the spring therefore acts directly on the driving piston.
  • the spring cooperates with the driving piston Braking element attacks for this. This means, that towards the end of the setting movement of the driving piston, if so the spring is tightened more, this movement is partly converted into a braking movement by the braking element.
  • the spring formed in this way can, for example be a tension spring. However, it is particularly favorable if the Spring is designed as a compression spring, so that when setting the fastener is stressed.
  • the spring has stiffening elements distributed over its length, that don't deform themselves.
  • the stiffening elements can in particular from a harder and / or other Material. This causes the spring to deform on small areas between two reinforcement elements concentrated so that the deviation of the spring in the Compression case kept small by the roughly cylindrical shape can be.
  • the Stiffening elements during the movement of the driving piston be guided by this and / or by the piston raceway. So it can not happen that the elastomeric material existing spring during the very fast insertion movement deformed on one side or convoluted so that it hinders the insertion movement of the piston or else is destroyed by this.
  • the stiffening elements are metallic washers, their outer diameter corresponds approximately to the inner diameter of the piston raceway, so that they are guided on their outside. Furthermore can their inside diameter is about the outside diameter of the piston rod correspond so that they are also guided on the inside be prevented from jamming.
  • the spring with the Reinforcing elements is vulcanized together. This creates a one-piece spring that can be manufactured as a single element, which has all the desired properties.
  • the spring has a wall thickness has, which is at most half as large, preferably is at most a third of the difference between the radius of the reinforcing elements and the radius of the inner opening of the reinforcement elements. This will ensure that the spring is a relative in the compressed state has small axial length, which is essentially only by the thickness of all reinforcing elements is determined, so that lie close to each other on a block.
  • the sleeve-like spring is advantageously close to the Inner opening of the reinforcing elements and thus nearby arranged the piston rod. Their deformation therefore takes place in primarily radially outwards.
  • the spring In the undeformed state, the spring can preferably be a cylindrical one Have shape.
  • the reinforcing elements can in particular be arranged equidistantly , which among other things means that there is no front and rear end of the spring there.
  • the orientation the spring when assembling the device is therefore not critical.
  • the reinforcing elements can advantageously be arranged in this way be that their mutual distance is about half their distance Corresponds to diameter.
  • Fig. 1 shows a simplified longitudinal section through a Bolt thruster according to the invention.
  • the bolt pusher according to the invention includes a rear housing 1 in which among other things, the facilities for feeding and igniting one Propellant charge are included. These details are not shown.
  • the piston sleeve 2 is accommodated in the housing 1, which has a cylindrical space 3 on its inside forms.
  • a driving piston 4 housed, with the help of seals, not shown is sealed off from room 3.
  • the driving piston 4 can be moved in the cylinder space 3. This shifting movement is shown on the right in Fig. 1 of the Driving piston 4 ignited propellant charge.
  • a ring element 5 made of elastomer material is accommodated, that abuts an end wall 6 of the head sleeve 11 and one Brake buffer forms.
  • On the end wall 6 facing away Side of the brake buffer 5 is inside the sleeve 2 sliding brake cone 7.
  • the brake cone 7 has one widening in a funnel shape in the direction of the driving piston 4 Inner opening 8.
  • a piston rod 9 attached in its first to itself the driving piston 4 immediately adjacent half first diameter and in the following, for free end towards a second, again has reduced diameter.
  • the return spring 10 is approximately sleeve-shaped and extends between the piston rod 9 having end face of the driving piston 4 and the corresponding opposite end face of the braking element 7.
  • an outer head sleeve 11 placed a cylindrical interior 12 for receiving of the actual fastener.
  • the floor of the cylindrical interior 12 has an opening, through which the front end of the piston rod 9 protrudes.
  • the free end face 14 annular is formed and slightly opposite the front edge 15 of the Head sleeve 11 protrudes.
  • the mounting sleeve 13 goes on their Device facing side in a radial flange 16 on the end face of which an elastomeric buffer 17 is attached.
  • the return spring 10 has the shape of a cylindrical, elongated sleeve 18 made of elastomer material through corresponding openings of a variety of reinforcing elements 19 is vulcanized through.
  • the reinforcement elements 19 are arranged at the same distance along the elastomer sleeve 18. They lie with their outer edges at a short distance in front of the inner wall of the cylindrical interior 3.
  • the Reinforcing elements 19 have a central opening coaxially 20 in the form of a circular hole, with which they on the Piston rod 19 are lined up. The inside diameter of this Hole 20 corresponds approximately to the outer diameter of the thicker Area of the piston rod 9.
  • the wall thickness of the elastomer sleeve 18 corresponds approximately to one A quarter to a third of the distance between the outer circumference the thicker part of the piston rod 9 and the inner diameter of the cylinder space 3 or the outer diameter of the driving piston 4.
  • the arrangement of the elastomer sleeve 18 is chosen so that this near the central central opening 20 of the Reinforcing elements 19 is arranged.
  • Fig. 1 shows the device in the starting position in which the Driving piston 4 to almost in front of the rear end of the cylinder space 3 is pushed. In this position, a fastener can inserted into the interior 12 of the head sleeve 11 will. The return spring 10 is relaxed. Now becomes Put a fastener a LPG cartridge ignited, the driving piston 4 moves at high speed from the starting position shown in the Setting position, i.e. 1 to the left. This leads to the return spring is compressed.
  • Fig. 2 shows an enlarged plan view of a reinforcing element 19.
  • the reinforcing element 19 has the shape of a metallic circular washer 21, for example made of aluminium.
  • A is concentric with the central opening 20 Circle of smaller circular openings 22 are present.
  • This Openings 22 correspond in their arrangement and their diameter the arrangement and the wall thickness of the elastomer sleeve 18.
  • the elastomer sleeve 18 is passed through these holes 22 vulcanized, connecting with the metallic Discs 21 takes place. This creates one as a single Component trained spring due to the reinforcing elements secured in the arrangement of FIG. 1 against buckling is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Springs (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Sawing (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Wire Processing (AREA)

Abstract

The tool comprises a reciprocating drive piston (4) actuated by a propulsive charge. A compression spring (10) is made of an elastically deformable material for returning the piston to its original position after the bolt fitting process. The piston rod (9) has a reduced diameter which over at least a part of its length is enclosed by the sleeve-form return spring which is located between an element (7) not contributing to the movement of the piston, and the piston itself.

Description

Die Erfindung geht aus von einem Bolzensetz- bzw. -schubgerät, mit dessen Hilfe ein Befestigungsmittel, in der Regel in Form eines Nagels oder Bolzens, gesetzt werden kann. Das Bolzenschubgerät enthält einen Treibkolben, der durch die Treibladungsgase nach Zündung einer Kartusche angetrieben wird und durch seine Vorschubbewegung den Bolzen eintreibt.The invention is based on a bolt setting or pushing device, with the help of a fastener, usually in Form of a nail or bolt, can be set. The bolt pusher contains a propellant piston which is driven by the propellant gases after ignition of a cartridge is driven and drives the bolt through its feed movement.

Insbesondere für einen automatischen Betrieb eines solchen Bolzenschubgerätes, bei dem die zu setzenden Befestigungselemente mit Hilfe eines an dem Gerät angebrachten Magazins zugeführt werden, ist es wünschenswert, den Treibkolben durch eine Automatik in seine Ausgangsposition zurückkehren zu lassen.In particular for the automatic operation of such Bolt thruster in which the fasteners to be set with the help of a magazine attached to the device it is desirable to push the propellant through to let an automatic return to its starting position.

Es ist bereits ein Bolzensetzgerät dieser Art bekannt (US-PS 3 331 546), bei dem zu diesem Zweck eine Vielzahl von Tellerfedern um eine Kolbenstange eines Treibkolbens angeordnet ist. Die Tellerfedern bestehen vorzugsweise aus Polyurethan und sind abwechselnd umgekehrt angeordnet, so daß sich ein Tellerfederpaket aus nicht miteinander verbundenen Tellerfedern ergibt. A bolt-driving tool of this type is already known (US-PS 3 331 546), for which purpose a large number of disc springs arranged around a piston rod of a driving piston is. The disc springs are preferably made of polyurethane and are alternately arranged in reverse so that a Disc spring package made of disc springs that are not connected results.

Der Erfindung liegt die Aufgabe zugrunde, ein Bolzensetzgerät zu schaffen, bei dem der Treibkolben nach dem Setzen des Befestigungselementes zurückgestellt wird und bei dem das Gerät eine lange Lebensdauer ohne Auswechseln der Feder aufweist. Der Erfindung liegt ebenfalls die Aufgabe zugrunde, eine Feder für ein derartiges Bolzensetzgerät zu schaffen.The invention has for its object a bolt-driving tool to create, in which the driving piston after setting the fastener is reset and the device has a long service life without changing the spring. The invention is also based on the object of a spring to create for such a bolt gun.

Zur Lösung dieser Aufgabe schlägt die Erfindung ein Bolzensetzgerät mit den im Anspruch 1 genannten Merkmalen sowie eine Feder hierzu mit den im Anspruch 15 genannten Merkmalen vor. Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.To achieve this object, the invention proposes a bolt-setting tool with the features mentioned in claim 1 and a spring for this with the features mentioned in claim 15 in front. Developments of the invention are the subject of dependent claims.

Die Anordnung einer Feder, die beim Setzen des Befestigungselementes gegen ihre Federkraft gespannt wird, macht es möglich, bei einfachem Aufbau des Gerätes den Treibkolben nach dem Setzvorgang in seine Ausgangsposition zurückkehren zu lassen. Es kann unmittelbar nach dem Setzvorgang ein neues Befestigungselement eingesetzt werden.The arrangement of a spring when setting the fastener tensioned against their spring force makes it possible with a simple construction of the device after the driving piston return to its starting position to let. It can be a new one immediately after the setting process Fastener can be used.

In Weiterbildung der Erfindung kann vorgesehen sein, daß der Treibkolben eine Kolbenstange mit verringertem Durchmesser aufweist, die über mindestens einen Teil ihrer Länge von der hülsenartig ausgebildeten Feder umgeben ist.In a further development of the invention it can be provided that the Driving piston a piston rod with a reduced diameter has at least part of its length from the sleeve-like spring is surrounded.

Die von der Erfindung vorgeschlagene Feder wird beim Montieren des Gerätes einfach über die Kolbenstange aufgesetzt und das Gerät dann zusammengesetzt. Es muß nicht mehr darauf geachtet werden, daß die einzelnen Tellerfedern abwechselnd immer in umgekehrter Position eingesetzt werden.The spring proposed by the invention is used during assembly of the device simply placed over the piston rod and the device is then assembled. You no longer have to pay attention to it be that the individual disc springs always alternate be used in the reverse position.

Erfindungsgemäß kann in Weiterbildung vorgesehen sein, daß sich die Feder zwischen einem die Bewegung des Treibkolbens nicht mitmachenden Geräteteil und dem Treibkolben erstreckt. Die Feder greift also direkt an dem Treibkolben an.According to the invention it can be provided in a further development that the spring between you the movement of the driving piston non-participating device part and the driving piston extends. The spring therefore acts directly on the driving piston.

Insbesondere kann in Weiterbildung der Erfindung vorgesehen sein, daß die Feder an einem mit dem Treibkolben zusammenwirkenden Bremselement für diesen angreift. Dies bedeutet, daß gegen Ende der Setzbewegung des Treibkolbens, wenn also die Feder stärker gespannt wird, sich diese Bewegung zum Teil in eine Bremsbewegung durch das Bremselement umsetzt.In particular, can be provided in a further development of the invention be that the spring cooperates with the driving piston Braking element attacks for this. This means, that towards the end of the setting movement of the driving piston, if so the spring is tightened more, this movement is partly converted into a braking movement by the braking element.

Die auf diese Weise ausgebildete Feder kann beispielsweise eine Zugfeder sein. Besonders günstig ist es jedoch, wenn die Feder als Druckfeder ausgebildet ist, so daß sie beim Setzen des Befestigungselementes auf Druck beansprucht wird.The spring formed in this way can, for example be a tension spring. However, it is particularly favorable if the Spring is designed as a compression spring, so that when setting the fastener is stressed.

Erfindungsgemäß kann in Weiterbildung vorgesehen sein, daß die Feder über ihre Länge verteilt Versteifungselemente aufweist, die sich selbst nicht verformen. Die Versteifungselemente können insbesondere aus einem härteren und/oder anderen Material hergestellt sein. Die Verformung der Feder wird dadurch auf kleine Bereiche zwischen je zwei Verstärkungselementen konzentriert, so daß die Abweichung der Feder auch im Kompressionsfall von der etwa zylindrischen Form klein gehalten werden kann.According to the invention it can be provided in a further development that the spring has stiffening elements distributed over its length, that don't deform themselves. The stiffening elements can in particular from a harder and / or other Material. This causes the spring to deform on small areas between two reinforcement elements concentrated so that the deviation of the spring in the Compression case kept small by the roughly cylindrical shape can be.

Insbesondere kann in Weiterbildung vorgesehen sein, daß die Versteifungselemente während der Bewegung des Treibkolbens von diesem und/oder von der Laufbahn des Kolbens geführt werden. Es kann also nicht vorkommen, daß die aus Elastomermaterial bestehende Feder während der sehr schnellen Einschubbewegung einseitig verformt wird oder sich so verknäult, daß sie die Einschubbewegung des Kolbens behindert oder aber durch diese zerstört wird. In particular, it can be provided in further training that the Stiffening elements during the movement of the driving piston be guided by this and / or by the piston raceway. So it can not happen that the elastomeric material existing spring during the very fast insertion movement deformed on one side or convoluted so that it hinders the insertion movement of the piston or else is destroyed by this.

Insbesondere kann vorgesehen sein, daß die Versteifungselemente metallische Ringscheiben sind, deren Außendurchmesser etwa dem Innendurchmesser der Kolbenlaufbahn entspricht, so daß sie an ihrer Außenseite geführt werden. Weiterhin kann ihr Innendurchmesser etwa dem Außendurchmesser der Kolbenstange entsprechen, so daß sie auch an ihrer Innenseite geführt werden und dadurch an einer Verkantung gehindert werden.In particular, it can be provided that the stiffening elements are metallic washers, their outer diameter corresponds approximately to the inner diameter of the piston raceway, so that they are guided on their outside. Furthermore can their inside diameter is about the outside diameter of the piston rod correspond so that they are also guided on the inside be prevented from jamming.

Erfindungsgemäß kann vorgesehen sein, daß die Feder mit den Verstärkungselementen zusammen vulkanisiert ist. Dadurch entsteht eine einstückige, als Einzelelement herstellbare Feder, die alle gewünschten Eigenschaften aufweist.According to the invention it can be provided that the spring with the Reinforcing elements is vulcanized together. This creates a one-piece spring that can be manufactured as a single element, which has all the desired properties.

Insbesondere kann vorgesehen sein, daß die Feder eine Wandstärke aufweist, die höchstens halb so groß, vorzugsweise höchstens ein Drittel so groß ist wie die Differenz zwischen dem Radius der Verstärkungselemente und dem Radius der Innenöffnung der Verstärkungselemente. Dadurch wird dafür gesorgt, daß die Feder im komprimierten Zustand eine relativ kleine axiale Länge aufweist, die im wesentlichen nur durch die Dicke aller Verstärkungselemente bestimmt wird, die damit fast auf Block aneinander anliegen.In particular, it can be provided that the spring has a wall thickness has, which is at most half as large, preferably is at most a third of the difference between the radius of the reinforcing elements and the radius of the inner opening of the reinforcement elements. This will ensure that the spring is a relative in the compressed state has small axial length, which is essentially only by the thickness of all reinforcing elements is determined, so that lie close to each other on a block.

Die hülsenartige Feder ist dabei mit Vorteil in der Nähe der Innenöffnung der Verstärkungselemente und damit in der Nähe der Kolbenstange angeordnet. Ihre Verformung erfolgt daher in erster Linie radial nach außen.The sleeve-like spring is advantageously close to the Inner opening of the reinforcing elements and thus nearby arranged the piston rod. Their deformation therefore takes place in primarily radially outwards.

In unverformtem Zustand kann die Feder vorzugsweise eine zylindrische Form aufweisen.In the undeformed state, the spring can preferably be a cylindrical one Have shape.

Die Verstärkungselemente können insbesondere äquidistant angeordnet werden, was unter anderem dazu führt, daß es kein vorderes und hinteres Ende der Feder gibt. Die Orientierung der Feder beim Zusammensetzen des Gerätes ist daher unkritisch.The reinforcing elements can in particular be arranged equidistantly , which among other things means that there is no front and rear end of the spring there. The orientation the spring when assembling the device is therefore not critical.

Die Verstärkungselemente können mit Vorteil so angeordnet werden, daß ihr gegenseitiger Abstand etwa ihrem halben Durchmesser entspricht.The reinforcing elements can advantageously be arranged in this way be that their mutual distance is about half their distance Corresponds to diameter.

Weitere Merkmale, Einzelheiten und Vorzüge ergeben sich aus den Patentansprüchen, deren Wortlaut durch Bezugnahme zum Inhalt der Beschreibung gemacht wird, der folgenden Beschreibung einer bevorzugten Ausführungsform der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

Fig. 1
einen schematischen Längsschnitt durch die wichtigsten Teile eines Bolzenschubgerätes nach der Erfindung;
Fig. 2
in vergrößertem Maßstab eine Stirnansicht eines als Ringscheibe ausgebildeten Verstärkungselementes für eine Feder der Anordnung nach Fig. 1.
Further features, details and advantages emerge from the patent claims, the wording of which is made by reference to the content of the description, the following description of a preferred embodiment of the invention and with reference to the drawing. Here show:
Fig. 1
a schematic longitudinal section through the most important parts of a bolt pusher according to the invention;
Fig. 2
on an enlarged scale an end view of a reinforcing element designed as an annular disk for a spring of the arrangement according to FIG. 1.

Die Fig. 1 zeigt einen vereinfachten Längsschnitt durch ein Bolzenschubgerät nach der Erfindung. Das Bolzenschubgerät nach der Erfindung enthält ein hinteres Gehäuse 1, in dem unter anderem die Einrichtungen zum Zuführen und Zünden einer Treibladung enthalten sind. Diese Einzelheiten sind nicht dargestellt. In dem Gehäuse 1 ist die Kolbenhülse 2 untergebracht, die an ihrer Innenseite einen zylindrischen Raum 3 bildet. In dem zylindrischen Raum 3 ist ein Treibkolben 4 untergebracht, der mit Hilfe nicht dargestellter Dichtungen gegenüber dem Raum 3 abgedichtet ist. Der Treibkolben 4 kann in dem Zylinderraum 3 verschoben werden. Diese Verschiebebewegung wird durch eine auf der in Fig. 1 rechten Seite des Treibkolbens 4 gezündete Treibladung hervorgerufen.Fig. 1 shows a simplified longitudinal section through a Bolt thruster according to the invention. The bolt pusher according to the invention includes a rear housing 1 in which among other things, the facilities for feeding and igniting one Propellant charge are included. These details are not shown. The piston sleeve 2 is accommodated in the housing 1, which has a cylindrical space 3 on its inside forms. In the cylindrical space 3 there is a driving piston 4 housed, with the help of seals, not shown is sealed off from room 3. The driving piston 4 can be moved in the cylinder space 3. This shifting movement is shown on the right in Fig. 1 of the Driving piston 4 ignited propellant charge.

Im vorderen, d.h. in Fig. 1 linken Ende des Zylinderraumes 3 ist ein Ringelement 5 aus Elastomermaterial untergebracht, das an einer Stirnwand 6 der Kopfhülse 11 anliegt und einen Bremspuffer bildet. Auf der der Stirnwand 6 abgewandten Seite des Bremspuffers 5 liegt ein im Innern der Hülse 2 verschiebbarer Bremskonus 7 an. Der Bremskonus 7 weist eine sich in Richtung auf den Treibkolben 4 trichterförmig erweiternde Innenöffnung 8 auf.In the front, i.e. 1 left end of the cylinder space 3 a ring element 5 made of elastomer material is accommodated, that abuts an end wall 6 of the head sleeve 11 and one Brake buffer forms. On the end wall 6 facing away Side of the brake buffer 5 is inside the sleeve 2 sliding brake cone 7. The brake cone 7 has one widening in a funnel shape in the direction of the driving piston 4 Inner opening 8.

An der vorderen Stirnfläche des Treibkolbens 4, d.h. auf der der Treibladung abgewandten Seite, ist an dem Treibkolben 4 eine Kolbenstange 9 angebracht, die in ihrer ersten, sich an den Treibkolben 4 unmittelbar anschließenden Hälfte einen ersten Durchmesser und in dem sich daran anschließenden, zum freien Ende hin orientierten Bereich einen zweiten, nochmals verkleinerten Druchmesser aufweist.On the front face of the driving piston 4, i.e. on the the side facing away from the propellant charge is on the propellant piston 4 a piston rod 9 attached in its first to itself the driving piston 4 immediately adjacent half first diameter and in the following, for free end towards a second, again has reduced diameter.

Zwischen der Kolbenstange 9 und der Hülse 2 ist dadurch ein Ringraum gebildet, in dem eine Rückstellfeder 10 untergebracht ist. Die Rückstellfeder 10 ist etwa hülsenförmig ausgebildet und erstreckt sich zwischen der die Kolbenstange 9 aufweisenden Stirnfläche des Treibkolbens 4 und der entsprechenden gegenüberliegenden Stirnseite des Bremselementes 7.This is a between the piston rod 9 and the sleeve 2 Annulus formed in which a return spring 10 housed is. The return spring 10 is approximately sleeve-shaped and extends between the piston rod 9 having end face of the driving piston 4 and the corresponding opposite end face of the braking element 7.

Auf das vordere Ende der Hülse 2 ist eine äußere Kopfhülse 11 aufgesetzt, die einen zylindrischen Innenraum 12 zur Aufnahme des eigentlichen Befestigungselementes aufweist. Der Boden des zylindrischen Innenraumes 12 weist eine Öffnung auf, durch die das vordere Ende der Kolbenstange 9 hindurchragt. On the front end of the sleeve 2 is an outer head sleeve 11 placed a cylindrical interior 12 for receiving of the actual fastener. The floor of the cylindrical interior 12 has an opening, through which the front end of the piston rod 9 protrudes.

Auf der Kopfhülse 11 ist in Axialrichtung verschiebbar eine Aufsetzhülse 13 gelagert, deren freie Stirnfläche 14 ringförmig ausgebildet ist und etwas gegenüber der Stirnkante 15 der Kopfhülse 11 vorsteht. Die Aufsetzhülse 13 geht auf ihrer dem Gerät zugewandten Seite in einen radialen Flansch 16 über, an dessen Stirnseite ein Elastomerpuffer 17 angebracht ist.On the head sleeve 11 is slidable in the axial direction Mount sleeve 13 mounted, the free end face 14 annular is formed and slightly opposite the front edge 15 of the Head sleeve 11 protrudes. The mounting sleeve 13 goes on their Device facing side in a radial flange 16 on the end face of which an elastomeric buffer 17 is attached.

Die Rückstellfeder 10 weist die Form einer zylindrischen, langgestreckten Hülse 18 aus Elastomermaterial auf, die durch entsprechende Öffnungen einer vielzahl von Verstärkungselementen 19 hindurch vulkanisiert ist. Die Verstärkungselemente 19 sind mit gleichem Abstand längs der Elastomerhülse 18 angeordnet. Sie liegen mit ihren Außenrändern mit geringem Abstand vor der Innenwand des zylindrischen Innenraumes 3. Die Verstärkungselemente 19 weisen koaxial eine zentrale Öffnung 20 in Form eines kreisrunden Lochs auf, mit denen sie auf der Kolbenstange 19 aufgereiht sind. Der Innendurchmesser dieses Loches 20 entspricht etwa dem Außendurchmesser des dickeren Bereiches der Kolbenstange 9.The return spring 10 has the shape of a cylindrical, elongated sleeve 18 made of elastomer material through corresponding openings of a variety of reinforcing elements 19 is vulcanized through. The reinforcement elements 19 are arranged at the same distance along the elastomer sleeve 18. They lie with their outer edges at a short distance in front of the inner wall of the cylindrical interior 3. The Reinforcing elements 19 have a central opening coaxially 20 in the form of a circular hole, with which they on the Piston rod 19 are lined up. The inside diameter of this Hole 20 corresponds approximately to the outer diameter of the thicker Area of the piston rod 9.

Die Wandstärke der Elastomerhülse 18 entspricht etwa einem Viertel bis einem Drittel des Abstandes zwischen dem Außenumfang des dickeren Teils der Kolbenstange 9 und dem Innendurchmesser des Zylinderraumes 3 bzw. dem Außendurchmesser des Treibkolbens 4. Die Anordnung der Elastomerhülse 18 ist so gewählt, daß diese nahe der zentralen Mittelöffnung 20 der Verstärkungselemente 19 angeordnet ist.The wall thickness of the elastomer sleeve 18 corresponds approximately to one A quarter to a third of the distance between the outer circumference the thicker part of the piston rod 9 and the inner diameter of the cylinder space 3 or the outer diameter of the driving piston 4. The arrangement of the elastomer sleeve 18 is chosen so that this near the central central opening 20 of the Reinforcing elements 19 is arranged.

Fig. 1 zeigt das Gerät in der Ausgangsposition, in der der Treibkolben 4 bis fast vor das hintere Ende des Zylinderraumes 3 geschoben ist. In dieser Position kann ein Befestigungselement in den Innenraum 12 der Kopfhülse 11 eingeführt werden. Die Rückstellfeder 10 ist entspannt. Wird nun zum Setzen eines Befestigungselementes eine Treibgaskartusche gezündet, so bewegt sich der Treibkolben 4 mit hoher Geschwindigkeit aus der dargestellten Ausgangsposition in die Setzposition, d.h. in Fig. 1 nach links. Dies führt dazu, daß die Rückstellfeder komprimiert wird. Da die Verstärkungselemente 19, die aus Metall bestehen, sich nicht verformen und andererseits sowohl an der Kolbenstange 9 als auch an der Wand des Zylinderraumes 3 geführt werden, verformt sich die Hülse 18 nur im Bereich zwischen den Verstärkungselementen 19, in dem das Material in erster Linie nach außen verformt wird. Die Feder 10 verkürzt sich also zieharmonikaartig, wobei die Verformung der Elastomerhülse 18 gleichmäßig über die Länge der Feder verteilt wird.Fig. 1 shows the device in the starting position in which the Driving piston 4 to almost in front of the rear end of the cylinder space 3 is pushed. In this position, a fastener can inserted into the interior 12 of the head sleeve 11 will. The return spring 10 is relaxed. Now becomes Put a fastener a LPG cartridge ignited, the driving piston 4 moves at high speed from the starting position shown in the Setting position, i.e. 1 to the left. This leads to the return spring is compressed. Because the reinforcement elements 19, which are made of metal, do not deform and on the other hand, both on the piston rod 9 and on the Wall of the cylinder chamber 3 are guided, which deforms Sleeve 18 only in the area between the reinforcing elements 19, in which the material is primarily deformed outwards becomes. The spring 10 is shortened like an accordion, whereby the deformation of the elastomer sleeve 18 evenly over the Length of the spring is distributed.

Gegen Ende des Setzvorganges, wenn die Feder 10 also fast vollständig verformt ist und die einzelnen Verstärkungselemente 19 fast auf Block liegen, wird der verbleibende Impuls des Kolbens auf das Bremselement 7 ausgeübt, der den Bremspuffer 5 komprimiert. Diese Komprimierung des Bremspuffers 5 führt zu einer Verringerung seines Innendurchmessers und dadurch zu einem Abbremsen der Kolbenstange 9 bis zum Stillstand. Der dabei auftretende Restschub wird dann durch das Pufferelement 17 abgebremst. Nach dem Setzen des Befestigungselementes schiebt die Feder 10 den Treibkolben 4 in die dargestellte Ausgangsposition zurück.Towards the end of the setting process, when the spring 10 is almost there is completely deformed and the individual reinforcing elements 19 are almost on block, the remaining impulse of the piston exerted on the brake element 7, the brake buffer 5 compressed. This compression of the brake buffer 5 leads to a reduction in its inner diameter and thereby braking the piston rod 9 to a standstill. The resulting thrust is then caused by the Buffer element 17 braked. After placing the fastener the spring 10 pushes the driving piston 4 into the shown starting position back.

Fig. 2 zeigt eine vergrößerte Aufsicht auf ein Verstärkungselement 19. Das Verstärkungselement 19 weist die Form einer metallischen kreisrunden Ringscheibe 21 auf, beispielsweise aus Aluminium. Konzentrisch zu der Zentralöffnung 20 ist ein Kreis von kleineren kreisrunden Öffnungen 22 vorhanden. Diese Öffnungen 22 entsprechen in ihrer Anordnung und ihrem Durchmesser der Anordnung und der Wandstärke der Elastomerhülse 18. Durch diese Löcher 22 wird die Elastomerhülse 18 hindurch vulkanisiert, wobei eine Verbindung mit den metallischen Scheiben 21 erfolgt. Dadurch entsteht eine als ein einzelnes Bauteil ausgebildete Feder, die aufgrund der Verstärkungselemente in der Anordnung der Fig. 1 gegen ein Ausknicken gesichert ist.Fig. 2 shows an enlarged plan view of a reinforcing element 19. The reinforcing element 19 has the shape of a metallic circular washer 21, for example made of aluminium. A is concentric with the central opening 20 Circle of smaller circular openings 22 are present. This Openings 22 correspond in their arrangement and their diameter the arrangement and the wall thickness of the elastomer sleeve 18. The elastomer sleeve 18 is passed through these holes 22 vulcanized, connecting with the metallic Discs 21 takes place. This creates one as a single Component trained spring due to the reinforcing elements secured in the arrangement of FIG. 1 against buckling is.

Claims (16)

Bolzenschubgerät mit 1.1 einem Gehäuse (1), 1.2 einem in dem Gehäuse (1) angeordneten, hin und her bewegbaren Treibkolben (4), der 1.2.1 durch eine Treibladung antreibbar und 1.2.2 zum Setzen eines Befestigungsmittels ausgebildet ist, sowie mit 1.3 einer Feder (10) aus elastisch verformbarem Material, insbesondere aus Elastomermaterial, zum Zurückbewegen des Treibkolbens (4) nach dem Setzvorgang in seiner Ausgangsposition. Bolt pusher with 1.1 a housing (1), 1.2 a in the housing (1), reciprocating movable piston (4), the 1.2.1 driven by a propellant charge and 1.2.2 is designed to set a fastener, and with 1.3 a spring (10) made of elastically deformable material, in particular made of elastomer material, for moving the driving piston (4) back into its starting position after the setting process. Bolzenschubgerät nach Anspruch 1, bei dem der Treibkolben (4) eine Kolbenstange (9) mit verringertem Durchmesser aufweist, die über mindestens einen Teil ihrer Länge von der hülsenartig ausgebildeten Rückstellfeder (10) umgeben ist.Bolt thruster according to claim 1, wherein the driving piston (4) a piston rod (9) with a reduced diameter having at least part of its length from the sleeve-like return spring (10) is surrounded. Bolzenschubgerät nach Anspruch 1 oder 2, bei dem sich die Feder (9) zwischen einem die Bewegung des Treibkolbens (4) nicht mitmachenden Geräteteil (7) und dem Treibkolben (4) erstreckt.Bolt thruster according to claim 1 or 2, in which the spring (9) between the movement of the driving piston (4) non-participating device part (7) and the Driving piston (4) extends. Bolzenschubgerät nach einem der vorhergehenden Ansprüche, bei dem die Feder (10) an einem mit dem Treibkolben (4) zusammenwirkenden Bremselement (7) für diesen angreift.Bolt pushing device according to one of the preceding claims, in which the spring (10) on one with the driving piston (4) cooperating brake element (7) attacks for this. Bolzenschubgerät nach einem der vorhergehenden Ansprüche, bei dem die Feder (10) eine Druckfeder ist.Bolt pushing device according to one of the preceding claims, in which the spring (10) is a compression spring. Bolzenschubgerät nach einem der vorhergehenden Ansprüche, bei dem die Feder (10) über ihre Länge verteilt sich nicht verformende Versteifungselemente (19) aufweist.Bolt pushing device according to one of the preceding claims, in which the spring (10) distributed over its length has non-deforming stiffening elements (19). Bolzenschubgerät nach Anspruch 6, bei dem die Versteifungselemente (19) während der Bewegung des Treibkolbens (4) von diesem und/oder der Laufbahn des Treibkolbens (4) geführt werden.Bolt thruster according to claim 6, wherein the stiffening elements (19) during the movement of the driving piston (4) of this and / or the career of the driving piston (4) be performed. Bolzenschubgerät nach Anspruch 6 oder 7, bei dem die Versteifungselemente (19) vorzugsweise aus Metall, Hartgummi oder Kunststoff bestehende Ringscheiben (21) sind, deren Außendurchmesser etwa dem Innendurchmesser der Kolbenlaufbahn und deren Innendurchmesser etwa dem Außendurchmesser der Kolbenstange (9) entsprechen.Bolt thruster according to claim 6 or 7, wherein the Stiffening elements (19) preferably made of metal, Hard rubber or plastic existing washers (21) are whose outer diameter is approximately the inner diameter the piston raceway and its inside diameter about that Correspond to the outside diameter of the piston rod (9). Bolzenschubgerät nach einem der Ansprüche 6 bis 8, bei dem die Verstärkungselemente (19) und die Feder (18) zusammen vulkanisiert sind.Bolt thruster according to one of claims 6 to 8, which the reinforcing elements (19) and the spring (18) are vulcanized together. Bolzenschubgerät nach einem der Ansprüche 6 bis 9, bei dem die Feder (18) eine Wandstärke aufweist, die höchstens halb so groß ist wie die Differenz zwischen dem Radius der Verstärkungselemente (19) und dem Radius der Innenöffnung (20) der Verstärkungselemente. Bolt thruster according to one of claims 6 to 9, in which the spring (18) has a wall thickness that is at most is half the difference between that Radius of the reinforcing elements (19) and the radius of the Inner opening (20) of the reinforcing elements. Bolzenschubgerät nach Anspruch 10, bei dem die Federhülse (18) näher an der Innenöffnung (20) der Verstärkungselemente als an deren Außenumfang angeordnet ist.Bolt thruster according to claim 10, wherein the spring sleeve (18) closer to the inner opening (20) of the reinforcing elements than is arranged on the outer circumference. Bolzenschubgerät nach einem der vorhergehenden Ansprüche, bei dem die Rückstellfeder (10) in unverformtem Zustand zylindrisch ist.Bolt pushing device according to one of the preceding claims, in which the return spring (10) in undeformed Condition is cylindrical. Bolzenschubgerät nach einem der Ansprüche 6 bis 12, bei dem die Verstärkungselemente (19) äquidistant angeordnet sind.Bolt thruster according to one of claims 6 to 12, which the reinforcing elements (19) arranged equidistant are. Bolzenschubgerät nach einem der Ansprüche 6 bis 12, bei dem die Verstärkungselemente (19) ungleichen Abstand voneinander aufweisen, insbesondere im Bereich der Enden der Feder einen kürzeren Abstand aufweisen.Bolt thruster according to one of claims 6 to 12, which the reinforcing elements (19) unequal distance have from each other, especially in the region of the ends the spring has a shorter distance. Bolzenschubgerät nach einem der Ansprüche 6 bis 13, bei dem der gegenseitige Abstand zweier benachbarter Verstärkungselemente (19) etwa ihrem halben Außendurchmesser entspricht.Bolt thruster according to one of claims 6 to 13, the mutual distance between two adjacent reinforcing elements (19) about half their outer diameter corresponds. Feder für ein Bolzenschubgerät, mit einem oder mehreren der sich auf die Feder beziehenden Merkmale nach einem der vorhergehenden Ansprüche.Spring for a bolt pusher, with one or more the features relating to the spring according to a of the preceding claims.
EP97115895A 1996-09-19 1997-09-12 Fastening tool and a returning spring therefor Expired - Lifetime EP0830920B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK97115895T DK0830920T3 (en) 1996-09-19 1997-09-12 Bolt laying apparatus and retraction spring therefor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19638341 1996-09-19
DE19638341A DE19638341A1 (en) 1996-09-19 1996-09-19 Bolt thruster and spring therefor
US09/061,633 US6182881B1 (en) 1996-09-19 1998-04-16 Stud driver and spring therefor

Publications (2)

Publication Number Publication Date
EP0830920A1 true EP0830920A1 (en) 1998-03-25
EP0830920B1 EP0830920B1 (en) 2004-07-21

Family

ID=26029563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115895A Expired - Lifetime EP0830920B1 (en) 1996-09-19 1997-09-12 Fastening tool and a returning spring therefor

Country Status (8)

Country Link
US (1) US6182881B1 (en)
EP (1) EP0830920B1 (en)
CN (1) CN1068818C (en)
AT (1) ATE271444T1 (en)
DE (2) DE19638341A1 (en)
DK (1) DK0830920T3 (en)
ES (1) ES2225921T3 (en)
PT (1) PT830920E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881042A1 (en) * 1997-05-30 1998-12-02 HILTI Aktiengesellschaft Fastener driving tool with return device for the drive piston
WO2023135041A1 (en) * 2022-01-14 2023-07-20 Fischerwerke Gmbh & Co. Kg Fastening tool for driving a fastening element into a base

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19800847A1 (en) * 1997-12-04 1999-06-17 Gerd Dr Ing Kellner Device for placing a fastening element in a setting surface and using the device
DE10105886C2 (en) * 2001-02-09 2002-12-05 Hilti Ag piston holder
US6779698B2 (en) * 2001-10-15 2004-08-24 Hwai-Tay Lin Abrasion-resistant bumper for a nail-driving tool
JP3818234B2 (en) * 2002-07-19 2006-09-06 日立工機株式会社 Nailer
DE10341384B4 (en) * 2003-09-05 2016-06-23 Hilti Aktiengesellschaft setting tool
US7726536B2 (en) * 2004-04-02 2010-06-01 Black & Decker Inc. Upper bumper configuration for a power tool
ATE396838T1 (en) * 2004-12-23 2008-06-15 Black & Decker Inc POWER TOOL HOUSING
ATE396841T1 (en) * 2004-12-23 2008-06-15 Black & Decker Inc POWER TOOL HOUSING
EP1674213B1 (en) * 2004-12-23 2008-10-01 BLACK & DECKER INC. Power tool cooling
DE102005000179A1 (en) * 2005-12-07 2007-06-14 Hilti Ag Hammer striker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126630A (en) * 1964-03-31 T catlin
US3301335A (en) * 1964-04-20 1967-01-31 Thomas E Snelling Energy absorbing structure
US3331546A (en) * 1965-06-01 1967-07-18 Olin Mathieson Piston return and buffer system
DE1939801A1 (en) * 1968-08-05 1970-02-05 Pierre Termet Repeater using the explosive force of a propellant charge
US3969989A (en) * 1973-08-02 1976-07-20 Karl M. Reich Maschinenfabrik Gmbh Impact buffer for impact drive tools
EP0732178A1 (en) * 1995-03-17 1996-09-18 Adolf Würth GmbH & Co. KG Bolt driving tool

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099011A (en) * 1955-08-11 1963-07-30 Fastener Corp Pneumatically operated tacker
US2982536A (en) * 1956-11-30 1961-05-02 Mobay Chemical Corp Spring
DE1503045A1 (en) * 1961-09-08 1969-12-11 Olin Mathieson Device for driving fastening bolts into walls
DE1603902A1 (en) * 1965-09-02
CH453249A (en) * 1965-11-09 1968-06-14 Bauer Carl Fa Bolt-firing tool for driving bolts into components
US3694018A (en) * 1970-07-22 1972-09-26 Gen Motors Corp Elastomeric impact energy dissipator
DE2221374C2 (en) * 1972-05-02 1983-02-10 Hilti AG, 9494 Schaan Powder-powered setting tool
DE2927507A1 (en) * 1979-07-07 1981-01-29 Kerner Karl Heinz Animal stunning gun - with rubber buffer for quick shot bolt retraction
US4332340A (en) * 1980-05-15 1982-06-01 Olin Corporation Piston tool buffer assembly
US4566678A (en) * 1982-08-27 1986-01-28 Miner Enterprises Polymeric apparatus and method of making the same
US4858811A (en) * 1985-11-21 1989-08-22 Eldorado Cartridge Corporation Power actuated tool with magazine feed
FR2608493B1 (en) * 1986-12-23 1994-09-02 Prospection & Inventions INDIRECT FIRE SEALING APPARATUS
DE19635312A1 (en) * 1996-09-02 1998-03-05 Hilti Ag Setting tool
US5868384A (en) * 1997-04-11 1999-02-09 Miner Enterprises, Inc. Composite elastomeric spring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126630A (en) * 1964-03-31 T catlin
US3301335A (en) * 1964-04-20 1967-01-31 Thomas E Snelling Energy absorbing structure
US3331546A (en) * 1965-06-01 1967-07-18 Olin Mathieson Piston return and buffer system
DE1939801A1 (en) * 1968-08-05 1970-02-05 Pierre Termet Repeater using the explosive force of a propellant charge
US3969989A (en) * 1973-08-02 1976-07-20 Karl M. Reich Maschinenfabrik Gmbh Impact buffer for impact drive tools
EP0732178A1 (en) * 1995-03-17 1996-09-18 Adolf Würth GmbH & Co. KG Bolt driving tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881042A1 (en) * 1997-05-30 1998-12-02 HILTI Aktiengesellschaft Fastener driving tool with return device for the drive piston
WO2023135041A1 (en) * 2022-01-14 2023-07-20 Fischerwerke Gmbh & Co. Kg Fastening tool for driving a fastening element into a base

Also Published As

Publication number Publication date
DK0830920T3 (en) 2004-11-29
PT830920E (en) 2004-09-30
EP0830920B1 (en) 2004-07-21
US6182881B1 (en) 2001-02-06
ES2225921T3 (en) 2005-03-16
CN1181299A (en) 1998-05-13
DE19638341A1 (en) 1998-03-26
ATE271444T1 (en) 2004-08-15
DE59711784D1 (en) 2004-08-26
CN1068818C (en) 2001-07-25

Similar Documents

Publication Publication Date Title
DE19580456C1 (en) Transporting lock for chain tensioner
DE3437083C2 (en) Tool, in particular screw tool with a torque that can be transmitted to a limited extent
EP0830920B1 (en) Fastening tool and a returning spring therefor
EP0359973A1 (en) Annular buffer for fastener-driving tools
DE2025029A1 (en) Arrangement of friction shifting devices, especially in motor vehicle transmissions
DE2821374A1 (en) SELF-HOLDING CABLE ANCHORING
DE19638658A1 (en) Shock-load absorber fixture surface on wall of power station
DE2611558A1 (en) CLUTCH THRUST BEARING
DE2540556A1 (en) TRANSMISSION MOUNT
DE102006010270B4 (en) gearing
DE4235519A1 (en) Motor vehicle IC-engine crankshaft flywheel damper - has two flywheel parts connectable to drive and driven sections.
DE1922603A1 (en) Friction clutch
EP1088627B1 (en) Bolt setting device for the driving of bolts or the like into construction elements
EP0732178B1 (en) Bolt driving tool
EP0621110B1 (en) Powder-actuated driving tool
EP0826464A1 (en) Powder driven fastener tool with piston returning means
DE112011103001B4 (en) Gear piston with enclosed return spring
DE3311036C2 (en)
DE2425350C3 (en) Arrangement for the storage of drums for washing machines
DE2736518A1 (en) RELEASE SUPPORT DEVICE
DE2156665C3 (en) Rotary impact coupling on a screwdriver
DE3434007A1 (en) Friction-lining fastening
DE602005004009T2 (en) INDIRECT PUNCHING DEVICE FOR FIXING FASTENER ELEMENTS IN A SUPPORTING MATERIAL
DE19858246A1 (en) Actuator for a separable friction clutch of a motor vehicle
DE3429558A1 (en) Chuck for gripping cap screws and studs during the screwing-in operation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19980912

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20011109

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59711784

Country of ref document: DE

Date of ref document: 20040826

Kind code of ref document: P

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20040913

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20040917

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: MC

Payment date: 20040922

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20040923

Year of fee payment: 8

Ref country code: CH

Payment date: 20040923

Year of fee payment: 8

Ref country code: BE

Payment date: 20040923

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20040924

Year of fee payment: 8

Ref country code: GR

Payment date: 20040924

Year of fee payment: 8

Ref country code: DK

Payment date: 20040924

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20040927

Year of fee payment: 8

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20040806

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040909

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20040403291

Country of ref document: GR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2225921

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050913

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060401

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Effective date: 20060313

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20060401

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

BERE Be: lapsed

Owner name: ADOLF *WURTH G.M.B.H. & CO. K.G.

Effective date: 20050930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040721

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20090924

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090922

Year of fee payment: 13

Ref country code: FI

Payment date: 20090915

Year of fee payment: 13

Ref country code: AT

Payment date: 20090916

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100912

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100912

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100912

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20091001

Year of fee payment: 13

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20111019

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100913

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120928

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59711784

Country of ref document: DE

Representative=s name: WALLINGER RICKER SCHLOTTER TOSTMANN PATENT- UN, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59711784

Country of ref document: DE

Representative=s name: PRUEFER & PARTNER GBR, DE

Effective date: 20131125

Ref country code: DE

Ref legal event code: R082

Ref document number: 59711784

Country of ref document: DE

Representative=s name: WALLINGER RICKER SCHLOTTER TOSTMANN PATENT- UN, DE

Effective date: 20131125

Ref country code: DE

Ref legal event code: R082

Ref document number: 59711784

Country of ref document: DE

Representative=s name: PRUEFER & PARTNER MBB PATENTANWAELTE RECHTSANW, DE

Effective date: 20131125

Ref country code: DE

Ref legal event code: R081

Ref document number: 59711784

Country of ref document: DE

Owner name: GEKE TECHNOLOGIE GMBH, DE

Free format text: FORMER OWNER: ADOLF WUERTH GMBH & CO KG, 74653 KUENZELSAU, DE

Effective date: 20131125

Ref country code: DE

Ref legal event code: R081

Ref document number: 59711784

Country of ref document: DE

Owner name: GEKE TECHNOLOGIE GMBH, DE

Free format text: FORMER OWNER: ADOLF WUERTH GMBH & CO. KG, 74653 KUENZELSAU, DE

Effective date: 20131125

REG Reference to a national code

Ref country code: DE

Ref document number: 59711784

Country of ref document: DE

Ref legal event code: R082

Representative=s name: PRUEFER & PARTNER MBB PATENTANWAELTE RECHTSANW, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 59711784

Country of ref document: DE

Representative=s name: PRUEFER & PARTNER GBR, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130912

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160928

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59711784

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59711784

Country of ref document: DE