EP0679479B1 - Hand tool for removing of surfaces - Google Patents

Hand tool for removing of surfaces Download PDF

Info

Publication number
EP0679479B1
EP0679479B1 EP95810095A EP95810095A EP0679479B1 EP 0679479 B1 EP0679479 B1 EP 0679479B1 EP 95810095 A EP95810095 A EP 95810095A EP 95810095 A EP95810095 A EP 95810095A EP 0679479 B1 EP0679479 B1 EP 0679479B1
Authority
EP
European Patent Office
Prior art keywords
housing
needle
hand
anvil
held device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95810095A
Other languages
German (de)
French (fr)
Other versions
EP0679479A1 (en
Inventor
Anton Neumaier
Hans-Christian Donner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP0679479A1 publication Critical patent/EP0679479A1/en
Application granted granted Critical
Publication of EP0679479B1 publication Critical patent/EP0679479B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02Percussive tool bits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
    • B08B7/022Needle scalers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D2250/00General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/275Tools having at least two similar components
    • B25D2250/285Tools having three or more similar components, e.g. three motors
    • B25D2250/291Tools having three or more parallel bits, e.g. needle guns

Definitions

  • the invention relates to a hand-held device for removing surfaces with a plurality of needle chisels and a housing in which a needle cage, at least indirectly via an anvil supporting the pressure spring on the housing and an anvil on the anvil hammer striking axially displaceable parallel to the longitudinal extent of the needle chisel are arranged, the needle cage having a plurality of through holes penetrated by needle chisels having.
  • the striking mechanisms of these known handheld devices are from various media, such as especially compressed air and liquid, can be set in motion.
  • a hammer of the Percussion strikes the anvil, which in turn is the needle chisel subjected to blows. Due to the axial displacement of the needle chisel in the through holes of the needle cage friction is in the area of Needle heads and the needle cage generates high temperatures.
  • a hand-held device in which also several needle chisels arranged in parallel next to each other in a needle cage that can be moved in the housing are provided with through holes penetrated by the needle chisels is.
  • a compression spring arranged in the housing presses on the edge of the needle cage, see above that it is pressed against an anvil.
  • a back and forth movement of the anvil is achieved by a hammer that can also be moved back and forth It is part of a striking mechanism that is driven by an electric drive motor.
  • This drive motor is mounted and controllable in a housing of the hand-held device via an actuation switch which is arranged in the region of a handle.
  • the needle chisels can be moved axially in the through holes of the needle cage.
  • the needle chisel is axially displaced by the one behind the needle chisels arranged, axially parallel to this displaceable anvil, which when moving the needle chisel strikes forward against the needle heads.
  • the needle chisels are against the surface during a machining process of a workpiece so that the needle chisel faces the needle cage Move axially in the direction of the handheld handle until it touches the needle heads the anvil to the system.
  • the drive motor through the striking mechanism strikes the hammer, which in turn strikes passes on to the anvil, leaving the needle chisel at a high speed Fly forward and move back when impacting the surface to be processed will.
  • This axial displacement of the needle chisel takes place very quickly that high friction between the needle chisels and the through holes of the needle cage. This makes the needle cage and the needle chisel very much very hot and it will damage the needle cage or the needle chisel.
  • the striking mechanism of the known hand-held device generates when the hand-held device is actuated also heat, which is generated in particular by the compression of air, wherein the heating cannot be dissipated to the extent that it is generated. There is therefore a build-up of heat inside the handheld device, which results in additional heating of the anvil, the needle cage and the needle chisel produces what the aforementioned Further promotes damage.
  • the invention has for its object a handheld device for removing surfaces to create, in which damage to the heating of the needle cage and the Needle chisel is prevented.
  • this is achieved in that the needle cage in the interior of the housing is freely displaceable between the anvil and a stop shoulder.
  • This configuration according to the invention allows the use of material with little Weight and lower quality for the manufacture of the needle cage.
  • the needle cage is axially free and essentially at the same frequency as that Can move needle chisel back and forth, there is only a slight axial displacement the needle chisel opposite the needle cage. So practically none is created heating of the needle cage causes friction between the needle bits and the needle cage.
  • the stop shoulder which limits the axial displacement of the needle cage in the direction of impact, is expediently arranged on the housing.
  • the stop shoulder can be used as formed radially inwardly projecting part of the housing or part of a radially to projecting inside, axially fixed to the housing stop element.
  • An economically producible stop shoulder that allows the axial displacement of the needle cage limited within the housing, is preferably part of the compression spring. Radially after Parts of the compression spring that protrude from the inside act with the impact direction Front face or with impact side side stop surfaces of the needle cage together.
  • the axial displacement of the needle cage in the direction of impact is limited with a stop shoulder, which expediently with a between the compression spring and the Anvil arranged, which serves to guide the needle cage cooperates.
  • the arrangement of a guide sleeve in which the needle cage is freely movable axially enables the handheld device to be manufactured in a short overall length.
  • the stop shoulder on the guide sleeve is expediently from a floor formed with an opening at the end region of the guide sleeve facing away from the anvil.
  • the axial displacement occurs at the opposite end region of the guide sleeve of the needle cage bounded by the adjacent anvil.
  • the anvil the end face of the needle cage facing away expediently projects from a shoulder, the cross section of which is smaller than the cross section of the opening.
  • the approach forms one Extension of the needle cage so that the through holes arranged in the needle cage are trained longer. This results in longer management areas for the needle chisel.
  • the anvil is in the foremost end position of the needle cage opposite end of the needle cage with the edge area at the bottom of the guide sleeve on. The approach protrudes through the opening of the bottom of the guide sleeve Seating direction forward.
  • the needle cage is advantageously made of plastic.
  • the Compression spring surrounding the needle chisel, is between the housing and the guide sleeve arranged. Due to the force generated by the compression spring, not only the Anvil, but also the guide sleeve, which can be moved axially within the housing pressed against the impact direction against the anvil.
  • the compression spring has the Coil spring shape.
  • the expediently Housing has a first housing part and a second housing part, which together can be coupled.
  • the coupling of both housing parts is preferably carried out by means of a bayonet catch.
  • the second housing part When coupling with the help of the bayonet lock, the second housing part surrounds expediently at least partially the first housing part, wherein to form the Bayonet lock with inward protrusions of the second housing part Interact stops of the first housing part. For loosening both housing parts these must be compressed against the force of the compression spring and against each other are rotated to disengage the projections from the stops bring.
  • Both housing parts are at least partially surrounded by a grip area Sleeve.
  • a grip area Sleeve In the end region of the second housing part on the impact direction is a axially displaceable clamping piece arranged.
  • the clamping piece is used for adjustability of the needle protrusion and is held by a clamping device.
  • the two housing parts can be designed as a structural unit, which can be formed using a Quick release can be detachably arranged on the housing of the handheld device.
  • This Quick release fastener can be based on a ball lock coupling, one radial displaceable locking element in the form of a ball in a passage opening cylindrical receiving area of the first housing part is arranged.
  • One outside of the receiving area arranged, axially displaceable locking sleeve with inner locking contour enables the radial displacement of the locking element in the locking or release position.
  • a coupling sleeve of the hand-held device can be placed on the outer contour has recesses matched to the locking element or elements.
  • the handheld device shown in FIGS. 1 and 2 for removing surfaces is made from a housing 1, to which a handle 2 connects. Inside the case 1 is a drive motor 3, not shown, which is arranged with the aid of a Handle 2 arranged actuating switch 4 is controllable. The electrical power supply of the hand-held device takes place via an electrical connecting line 5.
  • a grip area 6 sleeve 23 In the front area of the housing 1 opposite the handle 2 there is a arranged a grip area 6 sleeve 23, the first housing part 9 and at least partially surrounds a second housing part 10.
  • first housing part 9 there is an axially displaceable guide sleeve 14 with a bottom 15 and opening 15a arranged axially by means of a compression spring 16 against an anvil 17 is pressed against the direction of impact.
  • the anvil 17 is also axial arranged displaceably within the first housing part 9 and is by the compression spring 16 via the guide sleeve 14 against a damping ring 18 in the form of an O-ring pressed.
  • a needle cage 12 is arranged within the guide sleeve 14 Has through holes 12a, the receiving and the axial guidance of Needle chisels 8 serve.
  • the needle cage 12 is between a stop shoulder 15b the Guide sleeve 14 and the anvil 17 axially freely displaceable and has on the anvil 17 facing away from a shoulder 13, its perpendicular to the longitudinal extent the cross section of the needle chisel 8 is smaller than the cross section the opening 15a of the guide sleeve 14 in the region of the bottom 15.
  • the first housing part 9 is clutch-like with the second housing part 10 a bayonet lock 11 connected, the second housing part 10 the first Housing part 9 at least partially surrounds.
  • the interior of the second housing part 10 is supported on a conical inner surface Part of the first housing part 9, which has a stop surface for the compression spring 16 forms.
  • the needle chisels 8 have needle heads 19 which are on that end face of the needle cage 12 get to the plant, which are opposite approach 13.
  • Both the second housing part 10 as well as the sleeve 23 have ventilation openings 20, 21, 22, which for a adequate ventilation of the interior in the area of both housing parts 9, 10 worry.
  • With the axial displacement of the guide sleeve 14 or the needle cage 12 air is displaced outwards from the inside of the first housing part 9 or sucked air from the outside into the interior of the first housing part 9. Out of it there is also a cooling effect which results in the heating of all parts within the housing parts 9, 10 counteracts.
  • an axial displaceable clamping piece 31 is arranged, by means of which the axial projection of the Chisel needles 8 is adjustable.
  • a corresponding clamping device 32 the surrounds the front end region of the second housing part 10, the clamping piece 31 axially fixed to the second housing part 10 in connection.
  • the two housing parts 9, 10, in particular the first housing part 9, is by means of a Quick release device in the form of a ball detent coupling with the housing 1 of the Handheld device can be connected.
  • the first housing part 9 an essentially hollow cylindrical receiving area 24, which extends against the direction of impact.
  • This receiving area 24 has two radially running through openings on the receiving and guiding two locking elements 25 serve in the form of balls.
  • the recording area 24 is surrounded by an axially displaceable locking sleeve 27, which with a corresponding trained inner locking contour 26 a radial displacement of the locking elements 25 effected in a locking position or a release position.
  • the Receiving area 24 of the first housing part 9 can be plugged onto a coupling sleeve 28, the depressions matched to the locking elements 25 on the outer contour has and in which an axially displaceable hammer 29 is guided.
  • the locking sleeve 27 is pressed into the locking position by means of a spring element 30.

Landscapes

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

Description

Die Erfindung betrifft ein Handgerät zum Abtragen von Oberflächen mit mehreren Nadelmeisseln und einem Gehäuse, in dem ein Nadelkäfig, ein sich zumindest mittelbar über eine Druckfeder am Gehäuse abstützender Amboss sowie ein auf den Amboss schlagender Hammer parallel zur Längserstreckung der Nadelmeissel axial versetzbar angeordnet sind, wobei der Nadelkäfig mehrere von Nadelmeisseln durchsetzte Durchgangsbohrungen aufweist.The invention relates to a hand-held device for removing surfaces with a plurality of needle chisels and a housing in which a needle cage, at least indirectly via an anvil supporting the pressure spring on the housing and an anvil on the anvil hammer striking axially displaceable parallel to the longitudinal extent of the needle chisel are arranged, the needle cage having a plurality of through holes penetrated by needle chisels having.

Es sind bereits Handgeräte zum Abtragen von Oberflächen bzw. für die Oberflächenbearbeitung bekannt. Diese bekannten Handgeräte weisen ein Gehäuse auf, in dem ein Schlagwerk und ein axial versetzbarer Nadelkäfig angeordnet ist. Der Nadelkäfig besitzt mehrere Durchgangsbohrungen, die durchsetzt werden von das Gehäuse an einer Seite überragenden Nadelmeisseln.They are already hand-held devices for removing surfaces or for surface processing known. These known handheld devices have a housing in which a Percussion mechanism and an axially displaceable needle cage is arranged. The needle cage has several through holes, which are penetrated by the housing on one side outstanding needle chisels.

Die Schlagwerke dieser bekannten Handgeräte sind von verschiedenen Medien, wie insbesondere Druckluft und Flüssigkeit, in Bewegung versetzbar. Ein Hammer des Schlagwerks gibt dabei Schläge auf den Amboss ab, der seinerseits die Nadelmeissel mit Schlägen beaufschlagt. Durch die bei der axialen Versetzung der Nadelmeissel in den Durchgangsbohrungen des Nadelkäfigs entstehende Reibung wird im Bereich der Nadelköpfe und des Nadelkäfigs eine hohe Erwärmung erzeugt.The striking mechanisms of these known handheld devices are from various media, such as especially compressed air and liquid, can be set in motion. A hammer of the Percussion strikes the anvil, which in turn is the needle chisel subjected to blows. Due to the axial displacement of the needle chisel in the through holes of the needle cage friction is in the area of Needle heads and the needle cage generates high temperatures.

Da diese Medien das Handgerät beim Antrieb wenigstens teilweise durchdringen, erfolgt eine Kühlung der im Innern des Gehäuses angeordneten Teile, so dass Beschädigungen der Nadelmeissel im Bereich des Nadelkopfes oder des Nadelkäfigs verhindert werden.Since these media at least partially penetrate the handheld device during the drive, this is done cooling of the parts arranged inside the housing, so that damage the needle chisel in the area of the needle head or the needle cage can be prevented.

Aus der DE-C 34 17 735 ist ein Handgerät bekannt, bei dem ebenfalls mehrere Nadelmeissel parallel nebeneinander in einem im Gehäuse versetzbaren Nadelkäfig angeordnet sind, der mit von den Nadelmeisseln durchsetzten Durchgangsbohrungen versehen ist. Eine im Gehäuse angeordnete Druckfeder drückt auf den Rand des Nadelkäfigs, so dass dieser gegen einen Amboss gedrückt wird. Eine hin- und hergehende Bewegung des Ambosses wird erreicht durch einen ebenfalls hin- und herbewegbaren Hammer, der Teil eines Schlagwerkes ist, das angetrieben wird von einem elektrischen Antriebsmotor. Dieser Antriebsmotor ist in einem Gehäuse des Handgerätes gelagert und steuerbar über einen Betätigungsschalter, der im Bereich eines Handgriffes angeordnet ist.From DE-C 34 17 735 a hand-held device is known, in which also several needle chisels arranged in parallel next to each other in a needle cage that can be moved in the housing are provided with through holes penetrated by the needle chisels is. A compression spring arranged in the housing presses on the edge of the needle cage, see above that it is pressed against an anvil. A back and forth movement of the anvil is achieved by a hammer that can also be moved back and forth It is part of a striking mechanism that is driven by an electric drive motor. This drive motor is mounted and controllable in a housing of the hand-held device via an actuation switch which is arranged in the region of a handle.

Die Nadelmeissel sind in den Durchgangsbohrungen des Nadelkäfigs axial versetzbar. Die axiale Versetzung des Nadelmeissels erfolgt durch den hinter den Nadelmeisseln angeordneten, achsparallel zu diesen versetzbaren Amboss, der bei seiner Bewegung nach vorn gegen Nadelköpfe der Nadelmeissel schlägt.The needle chisels can be moved axially in the through holes of the needle cage. The needle chisel is axially displaced by the one behind the needle chisels arranged, axially parallel to this displaceable anvil, which when moving the needle chisel strikes forward against the needle heads.

Während eines Bearbeitungsvorganges werden die Nadelmeissel gegen die Oberfläche eines Werkstückes gedrückt, so dass sich die Nadelmeissel gegenüber dem Nadelkäfig axial in Richtung Handgriff des Handgerätes versetzen, bis sie mit den Nadelköpfen an dem Amboss zur Anlage gelangen. Bei der Inbetriebnahme des Antriebsmotors werden über das Schlagwerk Schläge auf den Hammer abgegeben, der seinerseits die Schläge weitergibt auf den Amboss, so dass die Nadelmeissel mit einer hohen Geschwindigkeit nach vorne fliegen und beim Aufprallen an den zu bearbeitenden Untergrund wieder zurückbewegt werden. Diese axiale Versetzung der Nadelmeissel erfolgt sehr schnell, so dass eine hohe Reibung zwischen den Nadelmeisseln und den Durchgangsbohrungen des Nadelkäfigs entsteht. Dadurch werden der Nadelkäfig und die Nadelmeissel sehr stark erwärmt und es führt zu Beschädigungen des Nadelkäfigs bzw. der Nadelmeissel.The needle chisels are against the surface during a machining process of a workpiece so that the needle chisel faces the needle cage Move axially in the direction of the handheld handle until it touches the needle heads the anvil to the system. When commissioning the drive motor through the striking mechanism strikes the hammer, which in turn strikes passes on to the anvil, leaving the needle chisel at a high speed Fly forward and move back when impacting the surface to be processed will. This axial displacement of the needle chisel takes place very quickly that high friction between the needle chisels and the through holes of the needle cage. This makes the needle cage and the needle chisel very much very hot and it will damage the needle cage or the needle chisel.

Das Schlagwerk des bekannten Handgerätes erzeugt bei der Betätigung des Handgerätes ebenfalls Wärme, die insbesondere durch die Verdichtung von Luft erzeugt wird, wobei die Erwärmung nicht in dem Ausmasse abgeführt werden kann, wie sie erzeugt wird. Es erfolgt somit ein Wärmestau innerhalb des Handgerätes, der eine zusätzliche Erwärmung des Ambosses, des Nadelkäfigs und der Nadelmeissel erzeugt, was die vorgenannten Schäden weiter fördert.The striking mechanism of the known hand-held device generates when the hand-held device is actuated also heat, which is generated in particular by the compression of air, wherein the heating cannot be dissipated to the extent that it is generated. There is therefore a build-up of heat inside the handheld device, which results in additional heating of the anvil, the needle cage and the needle chisel produces what the aforementioned Further promotes damage.

Der Erfindung liegt die Aufgabe zugrunde, ein Handgerät zum Abtragen von Oberflächen zu schaffen, bei dem eine zu Schäden führende Erwärmung des Nadelkäfigs sowie der Nadelmeissel verhindert wird.The invention has for its object a handheld device for removing surfaces to create, in which damage to the heating of the needle cage and the Needle chisel is prevented.

Erfindungsgemäss wird dies dadurch erreicht, dass der Nadelkäfig im Innern des Gehäuses zwischen dem Amboss und einer Anschlagschulter frei versetzbar ist.According to the invention, this is achieved in that the needle cage in the interior of the housing is freely displaceable between the anvil and a stop shoulder.

Diese erfindungsgemässe Ausgestaltung gestattet die Verwendung von Material mit geringem Gewicht und geringerer Qualität für die Herstellung des Nadelkäfigs. This configuration according to the invention allows the use of material with little Weight and lower quality for the manufacture of the needle cage.

Da sich der Nadelkäfig axial frei und im wesentlichen mit der gleichen Frequenz, wie die Nadelmeissel hin- und herbewegen kann, erfolgt nur noch eine geringe axiale Versetzung der Nadelmeissel gegenüber dem Nadelkäfig. Somit entsteht praktisch keine zu einer Erwärmung des Nadelkäfigs führende Reibung zwischen den Nadelmeisseln und dem Nadelkäfig.Because the needle cage is axially free and essentially at the same frequency as that Can move needle chisel back and forth, there is only a slight axial displacement the needle chisel opposite the needle cage. So practically none is created heating of the needle cage causes friction between the needle bits and the needle cage.

Die Anschlagschulter, die die axiale Versetzung des Nadelkäfigs in Schlagrichtung begrenzt, ist zweckmässigerweise am Gehäuse angeordnet. Die Anschlagschulter kann als radial nach innen ragendes Teil des Gehäuses ausgebildet oder Teil eines radial nach innen ragenden, am Gehäuse axial fest angeordneten Anschlagelementes sein.The stop shoulder, which limits the axial displacement of the needle cage in the direction of impact, is expediently arranged on the housing. The stop shoulder can be used as formed radially inwardly projecting part of the housing or part of a radially to projecting inside, axially fixed to the housing stop element.

Eine wirtschaftlich herstellbare Anschlagschulter, die die axiale Versetzung des Nadelkäfigs innerhalb des Gehäuses begrenzt, ist vorzugsweise Teil der Druckfeder. Radial nach innen abragende Teile der Druckfeder wirken dabei mit der schlagrichtungsseitigen Stirnseite bzw. mit schlagrichtungsseitigen, seitlichen Anschlagflächen des Nadelkäfigs zusammen.An economically producible stop shoulder that allows the axial displacement of the needle cage limited within the housing, is preferably part of the compression spring. Radially after Parts of the compression spring that protrude from the inside act with the impact direction Front face or with impact side side stop surfaces of the needle cage together.

Die axiale Versetzung des Nadelkäfigs in Schlagrichtung wird begrenzt mit einer Anschlagschulter, die zweckmässigerweise mit einer zwischen der Druckfeder und dem Amboss angeordneten, der Führung des Nadelkäfigs dienenden Führungshülse zusammenwirkt. Die Anordnung einer Führungshülse, in der der Nadelkäfig axial frei bewegbar ist, ermöglicht die Herstellung des Handgerätes in einer kurzen Baulänge.The axial displacement of the needle cage in the direction of impact is limited with a stop shoulder, which expediently with a between the compression spring and the Anvil arranged, which serves to guide the needle cage cooperates. The arrangement of a guide sleeve in which the needle cage is freely movable axially enables the handheld device to be manufactured in a short overall length.

Die Anschlagschulter an der Führungshülse ist zweckmässigerweise von einem Boden mit Oeffnung an dem vom Amboss abgewandten Endbereich der Führungshülse gebildet. Am gegenüberliegenden Endbereich der Führungshülse wird die axiale Versetzung des Nadelkäfigs begrenzt vom anliegenden Amboss.The stop shoulder on the guide sleeve is expediently from a floor formed with an opening at the end region of the guide sleeve facing away from the anvil. The axial displacement occurs at the opposite end region of the guide sleeve of the needle cage bounded by the adjacent anvil.

Um eine gute Führung der Nadelmeissel gewährleisten zu können, wird die vom Amboss abgewandte Stirnseite des Nadelkäfigs zweckmässigerweise von einem Ansatz überragt, dessen Querschnitt kleiner ist als der Querschnitt der Oeffnung. Der Ansatz bildet eine Verlängerung des Nadelkäfigs, so dass die im Nadelkäfig angeordneten Durchgangsbohrungen länger ausgebildet sind. Es ergeben sich dadurch längere Führungsbereiche für die Nadelmeissel. In der vordersten Endlage des Nadelkäfigs liegt die vom Amboss abgewandte Stimseite des Nadelkäfigs mit dem Randbereich am Boden der Führungshülse an. Der Ansatz ragt dabei durch die Oeffnung des Bodens der Führungshülse in Setzrichtung nach vorne. To ensure good guidance of the needle chisel, the anvil the end face of the needle cage facing away expediently projects from a shoulder, the cross section of which is smaller than the cross section of the opening. The approach forms one Extension of the needle cage so that the through holes arranged in the needle cage are trained longer. This results in longer management areas for the needle chisel. The anvil is in the foremost end position of the needle cage opposite end of the needle cage with the edge area at the bottom of the guide sleeve on. The approach protrudes through the opening of the bottom of the guide sleeve Seating direction forward.

Um eine leichte axiale Versetzung des Nadelkäfigs innerhalb der Führungshülse zusammen mit den Nadelmeisseln erreichen zu können, besteht der Nadelkäfig vorteilhafterweise aus Kunststoff.To make a slight axial displacement of the needle cage within the guide sleeve together To be able to reach with the needle chisels, the needle cage is advantageously made of plastic.

Damit der Amboss vom Hammer bzw. vom Schlagwerk mit Schlägen beaufschlagt werden kann, ist es notwendig, dass der Amboss unter der Kraft einer Druckfeder in Arbeitsposition gedrückt und das Schlagwerk dauernd in Schlagbetrieb gehalten wird. Die Druckfeder ist, die Nadelmeissel umgebend, zwischen dem Gehäuse und der Führungshülse angeordnet. Durch die von der Druckfeder erzeugte Kraft wird nicht nur der Amboss, sondern auch die innerhalb des Gehäuses axial versetzbare Führungshülse entgegen der Schlagrichtung gegen den Amboss gedrückt. Die Druckfeder hat dabei die Form einer Schraubenfeder.So that the anvil is struck by the hammer or striking mechanism it is necessary that the anvil is in the working position under the force of a compression spring pressed and the striking mechanism is continuously held in striking mode. The Compression spring, surrounding the needle chisel, is between the housing and the guide sleeve arranged. Due to the force generated by the compression spring, not only the Anvil, but also the guide sleeve, which can be moved axially within the housing pressed against the impact direction against the anvil. The compression spring has the Coil spring shape.

Da es sich bei den Nadelmeisseln um Verschleissteile handelt, die sich während des Bearbeitungsvorganges teilweise abnützen, müssen diese, nachdem sie verschlissen sind, ausgewechselt werden. Zu diesem Zweck sind der Nadelkäfig und die Nadelmeissel auswechselbar innerhalb des Gehäuses angeordnet, wobei zweckmässigerweise das Gehäuse ein erstes Gehäuseteil und ein zweites Gehäuseteil aufweist, die miteinander kuppelbar sind. Die Kupplung beider Gehäuseteile erfolgt dabei vorzugsweise mittels eines Bajonettverschlusses.Since the needle chisels are wearing parts that are during the Machining process partially wear out, they must be worn after they are worn out are to be replaced. For this purpose, the needle cage and the needle chisel arranged interchangeably within the housing, the expediently Housing has a first housing part and a second housing part, which together can be coupled. The coupling of both housing parts is preferably carried out by means of a bayonet catch.

Bei der Kupplung mit Hilfe des Bajonettverschlusses umgibt das zweite Gehäuseteil zweckmässigerweise das erste Gehäuseteil wenigstens teilweise, wobei zur Bildung des Bajonettverschlusses nach innen ragende Vorsprünge des zweiten Gehäuseteiles mit Anschlägen des ersten Gehäuseteiles zusammenwirken. Zum Lösen beider Gehäuseteile müssen diese gegen die Kraft der Druckfeder zusammengedrückt und gegeneinander verdreht werden, um die Vorsprünge gegenüber den Anschlägen ausser Eingriff zu bringen.When coupling with the help of the bayonet lock, the second housing part surrounds expediently at least partially the first housing part, wherein to form the Bayonet lock with inward protrusions of the second housing part Interact stops of the first housing part. For loosening both housing parts these must be compressed against the force of the compression spring and against each other are rotated to disengage the projections from the stops bring.

Neben dem Nadelkäfig und den Nadelmeisseln befinden sich auch die axial versetzbare Führungshülse, der Amboss, die Druckfeder und ein Dämpfungselement in Form eines O-Ringes innerhalb des ersten Gehäuseteiles.In addition to the needle cage and the needle chisels, there are also the axially displaceable ones Guide sleeve, the anvil, the compression spring and a damping element in the form of a O-ring within the first housing part.

Beide Gehäuseteile sind wenigstens teilweise umgeben von einer einen Griffbereich bildenden Hülse. Im schlagrichtungsseitigen Endbereich des zweiten Gehäuseteiles ist ein axial versetzbares Klemmstück angeordnet. Das Klemmstück dient der Einstellbarkeit des Nadelüberstandes und wird gehalten von einer Klemmeinrichtung. Both housing parts are at least partially surrounded by a grip area Sleeve. In the end region of the second housing part on the impact direction is a axially displaceable clamping piece arranged. The clamping piece is used for adjustability of the needle protrusion and is held by a clamping device.

Die beiden Gehäuseteile können als Baueinheit ausgebildet sein, die mit Hilfe eines Schnellverschlusses an dem Gehäuse des Handgerätes lösbar anordbar ist. Dieser Schnellverschluss kann auf der Basis einer Kugelrastkupplung basieren, wobei ein radial versetzbares Verriegelungselement in Form einer Kugel in einer Durchtrittsöffnung eines zylindrischen Aufnahmebereiches des ersten Gehäuseteiles angeordnet ist. Eine ausserhalb des Aufnahmebereiches angeordnete, axial versetzbare Verriegelungshülse mit innerer Verriegelungskontur ermöglicht die radiale Versetzung des Verriegelungselementes in die Verriegelungs- bzw. Freigabestellung. In den Aufnahmebereich des ersten Gehäuseteiles ist eine Kupplungshülse des Handgerätes setzbar, die an der Aussenkontur auf das bzw. die Verriegelungselemente abgestimmte Vertiefungen aufweist.The two housing parts can be designed as a structural unit, which can be formed using a Quick release can be detachably arranged on the housing of the handheld device. This Quick release fastener can be based on a ball lock coupling, one radial displaceable locking element in the form of a ball in a passage opening cylindrical receiving area of the first housing part is arranged. One outside of the receiving area arranged, axially displaceable locking sleeve with inner locking contour enables the radial displacement of the locking element in the locking or release position. In the recording area of the first Housing part, a coupling sleeve of the hand-held device can be placed on the outer contour has recesses matched to the locking element or elements.

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

Fig. 1
ein erfindungsgemässes Handgerät zum Abtragen von Oberflächen;
Fig. 2
die Schlagvorrichtung des Handgerätes gemäss Fig. 1 in vergrösserter, geschnittener Darstellung.
The invention is explained in more detail with reference to drawings which show an exemplary embodiment. Show it:
Fig. 1
a hand-held device according to the invention for removing surfaces;
Fig. 2
the impact device of the handheld device according to FIG. 1 in an enlarged, sectional view.

Das in den Fig. 1 und 2 dargestellte Handgerät zum Abtragen von Oberflächen besteht aus einem Gehäuse 1, an das sich ein Handgriff 2 anschliesst. Innerhalb des Gehäuses 1 ist ein nicht näher dargestellter Antriebsmotor 3 angeordnet, der mit Hilfe eines im Handgriff 2 angeordneten Betätigungsschalters 4 steuerbar ist. Die elektrische Stromversorgung des Handgerätes erfolgt über eine elektrische Verbindungsleitung 5.The handheld device shown in FIGS. 1 and 2 for removing surfaces is made from a housing 1, to which a handle 2 connects. Inside the case 1 is a drive motor 3, not shown, which is arranged with the aid of a Handle 2 arranged actuating switch 4 is controllable. The electrical power supply of the hand-held device takes place via an electrical connecting line 5.

Im vorderen, dem Handgriff 2 gegenüberliegenden Bereich des Gehäuses 1 ist eine, einen Griffbereich 6 bildende Hülse 23 angeordnet, die ein erstes Gehäuseteil 9 sowie ein zweites Gehäuseteil 10 wenigstens teilweise umgibt.In the front area of the housing 1 opposite the handle 2 there is a arranged a grip area 6 sleeve 23, the first housing part 9 and at least partially surrounds a second housing part 10.

In dem ersten Gehäuseteil 9 ist eine axial versetzbare Führungshülse 14 mit Boden 15 und Oeffnung 15a angeordnet, die axial mit Hilfe einer Druckfeder 16 gegen einen Amboss 17 entgegen der Schlagrichtung gedrückt wird. Der Amboss 17 ist ebenfalls axial versetzbar innerhalb des ersten Gehäuseteiles 9 angeordnet und wird von der Druckfeder 16 über die Führungshülse 14 gegen einen Dämpfungsring 18 in Form eines O-Ringes gedrückt. Innerhalb der Führungshülse 14 ist ein Nadelkäfig 12 angeordnet, der Durchgangsbohrungen 12a aufweist, die der Aufnahme und der axialen Führung von Nadelmeisseln 8 dienen. Der Nadelkäfig 12 ist zwischen einer Anschlagschulter 15b der Führungshülse 14 und dem Amboss 17 axial frei versetzbar und besitzt an der vom Amboss 17 abgewandten Stirnseite einen Ansatz 13, dessen rechtwinklig zur Längserstreckung der Nadelmeissel 8 verlaufender Querschnitt kleiner ist, als der Querschnitt der Oeffnung 15a der Führunghülse 14 im Bereich des Bodens 15.In the first housing part 9 there is an axially displaceable guide sleeve 14 with a bottom 15 and opening 15a arranged axially by means of a compression spring 16 against an anvil 17 is pressed against the direction of impact. The anvil 17 is also axial arranged displaceably within the first housing part 9 and is by the compression spring 16 via the guide sleeve 14 against a damping ring 18 in the form of an O-ring pressed. A needle cage 12 is arranged within the guide sleeve 14 Has through holes 12a, the receiving and the axial guidance of Needle chisels 8 serve. The needle cage 12 is between a stop shoulder 15b the Guide sleeve 14 and the anvil 17 axially freely displaceable and has on the anvil 17 facing away from a shoulder 13, its perpendicular to the longitudinal extent the cross section of the needle chisel 8 is smaller than the cross section the opening 15a of the guide sleeve 14 in the region of the bottom 15.

Der erste Gehäuseteil 9 ist mit dem zweiten Gehäuseteil 10 kupplungsartig mit Hilfe eines Bajonettverschlusses 11 verbunden, wobei der zweite Gehäusteil 10 den ersten Gehäuseteil 9 wenigstens teilweise umgibt.The first housing part 9 is clutch-like with the second housing part 10 a bayonet lock 11 connected, the second housing part 10 the first Housing part 9 at least partially surrounds.

Im Innern des zweiten Gehäuseteiles 10 stützt sich an einer konischen Innenfläche ein Teil des ersten Gehäuseteiles 9 ab, welcher eine Anschlagfläche für die Druckfeder 16 bildet.The interior of the second housing part 10 is supported on a conical inner surface Part of the first housing part 9, which has a stop surface for the compression spring 16 forms.

Die Nadelmeissel 8 weisen Nadelköpfe 19 auf, die an jener Stirnseite des Nadelkäfigs 12 zur Anlage gelangen, die dem Ansatz 13 gegenüberliegen. Sowohl der zweite Gehäuseteil 10 als auch die Hülse 23 weisen Belüftungsöffnungen 20, 21, 22 auf, die für eine ausreichende Belüftung des schlagrichtungsseitigen Innenraumes im Bereich beider Gehäuseteile 9, 10 sorgen. Bei der axialen Versetzung der Führungshülse 14 bzw. des Nadelkäfigs 12 wird Luft aus dem Innern des ersten Gehäuseteiles 9 nach aussen verdrängt bzw. Luft von aussen in das Innere des ersten Gehäuseteiles 9 gesaugt. Daraus ergibt sich auch ein Kühleffekt, der der Erwärmung aller Teile innerhalb der Gehäuseteile 9, 10 entgegenwirkt.The needle chisels 8 have needle heads 19 which are on that end face of the needle cage 12 get to the plant, which are opposite approach 13. Both the second housing part 10 as well as the sleeve 23 have ventilation openings 20, 21, 22, which for a adequate ventilation of the interior in the area of both housing parts 9, 10 worry. With the axial displacement of the guide sleeve 14 or the needle cage 12 air is displaced outwards from the inside of the first housing part 9 or sucked air from the outside into the interior of the first housing part 9. Out of it there is also a cooling effect which results in the heating of all parts within the housing parts 9, 10 counteracts.

Auf dem schlagrichtungsseitigen Endbereich des zweiten Gehäuseteiles 10 ist ein axial versetzbares Klemmstück 31 angeordnet, mit dessen Hilfe der axiale Ueberstand der Meisselnadeln 8 einstellbar ist. Mittels einer entsprechenden Klemmeinrichtung 32, die den vorderen Endbereich des zweiten Gehäuseteiles 10 umgibt, ist das Klemmstück 31 axial fest mit dem zweiten Gehäusteil 10 in Verbindung bringbar.On the impact direction-side end region of the second housing part 10 is an axial displaceable clamping piece 31 is arranged, by means of which the axial projection of the Chisel needles 8 is adjustable. By means of a corresponding clamping device 32, the surrounds the front end region of the second housing part 10, the clamping piece 31 axially fixed to the second housing part 10 in connection.

Die beiden Gehäuseteile 9, 10, insbesondere das erste Gehäuseteil 9, ist mittels einer Schnellspanneinrichtung in Form einer Kugelrastkupplung mit dem Gehäuse 1 des Handgerätes in Verbindung bringbar. Zu diesem Zweck weist das erste Gehäuseteil 9 einen im wesentlichen hohlzylindrisch ausgebildeten Aufnahmebereich 24 auf, der sich entgegen der Schlagrichtung erstreckt. Dieser Aufnahmebereich 24 weist zwei radial verlaufende Durchtrittsöffnungen auf, die der Aufnahme und der Führung von zwei Verriegelungselementen 25 in Form von Kugeln dienen. Der Aufnahmebereich 24 wird umgeben von einer axial versetzbaren Verriegelungshülse 27, die mit einer entsprechend ausgebildeten inneren Verriegelungskontur 26 eine radiale Versetzung der Verriegelungselemente 25 in eine Verriegelungsstellung bzw. eine Freigabestellung bewirkt. Der Aufnahmebereich 24 des ersten Gehäusteiles 9 ist auf eine Kupplungshülse 28 steckbar, die an der Aussenkontur auf die Verriegelungselemente 25 abgestimmte Vertiefungen aufweist und in der ein axial versetzbarer Hammer 29 geführt ist. Die Verriegelungshülse 27 wird mit Hilfe eines Federelementes 30 in die Verriegelungsstellung gedrückt.The two housing parts 9, 10, in particular the first housing part 9, is by means of a Quick release device in the form of a ball detent coupling with the housing 1 of the Handheld device can be connected. For this purpose, the first housing part 9 an essentially hollow cylindrical receiving area 24, which extends against the direction of impact. This receiving area 24 has two radially running through openings on the receiving and guiding two locking elements 25 serve in the form of balls. The recording area 24 is surrounded by an axially displaceable locking sleeve 27, which with a corresponding trained inner locking contour 26 a radial displacement of the locking elements 25 effected in a locking position or a release position. Of the Receiving area 24 of the first housing part 9 can be plugged onto a coupling sleeve 28, the depressions matched to the locking elements 25 on the outer contour has and in which an axially displaceable hammer 29 is guided. The locking sleeve 27 is pressed into the locking position by means of a spring element 30.

Claims (10)

  1. A hand-held device for the removal of surfaces, having a plurality of pin chisels (8) and having a housing (1), in which a pin cage (12), an anvil (17) which is supported at least indirectly on the housing (1) via a pressure spring (16), and a hammer (29) which strikes the anvil (17) are disposed so that they are axially displaceable parallel to the longitudinal extent of the pin chisels (8), wherein the pin cage (12) comprises a plurality of passageway holes (12a) through which pin chisels (8) pass, characterised in that the pin cage (12) is freely displaceable in the interior of the housing (1) between the anvil (17) and a stop collar (15b).
  2. A hand-held device according to claim 1, characterised in that the stop collar (15b) is disposed on the housing (1).
  3. A hand-held device according to claim 1, characterised in that the stop collar (15b) is part of the pressure spring (16).
  4. A hand-held device according to claim 1, characterised in that the stop collar (15b) is on a guide bush (14) which is disposed between the pressure spring (16) and the anvil (17) and which serves for the guidance of the pin cage (12).
  5. A hand-held device according to claim 4, characterised in that the stop collar (15b) is formed from a base (15) with an opening (15a) at the end region of the guide bush (14) remote from the anvil.
  6. A hand-held device according to claim 5, characterised in that a projection (13) protrudes beyond the end face of the pin cage (12) remote from the anvil (17), the cross-section of which projection is smaller than the cross-section of the opening (15a).
  7. A hand-held device according to any one of claims 1 to 6, characterised in that the pin cage (12) consists of synthetic material.
  8. A hand-held device according to any one of claims 1 to 7, characterised in that the housing (1) comprises a first housing part (9) and a second housing part (10), which can be coupled to each other.
  9. A hand-held device according to claim 8, characterised in that the two housing parts (9, 10) are coupled to each other by means of a bayonet connection (11).
  10. A hand-held device according to claim 9, characterised in that the second housing part (10) at least partially surrounds the first housing part (9), wherein inwardly protruding projections of the second housing part (10) cooperate with limit stops of the first housing part (9) for the formation of the bayonet connection (11).
EP95810095A 1994-04-25 1995-02-14 Hand tool for removing of surfaces Expired - Lifetime EP0679479B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4414342A DE4414342A1 (en) 1994-04-25 1994-04-25 Handheld device for removing surfaces
DE4414342 1994-04-25

Publications (2)

Publication Number Publication Date
EP0679479A1 EP0679479A1 (en) 1995-11-02
EP0679479B1 true EP0679479B1 (en) 1998-08-26

Family

ID=6516348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810095A Expired - Lifetime EP0679479B1 (en) 1994-04-25 1995-02-14 Hand tool for removing of surfaces

Country Status (6)

Country Link
US (1) US5586607A (en)
EP (1) EP0679479B1 (en)
JP (1) JP3638992B2 (en)
CN (1) CN1051492C (en)
DE (2) DE4414342A1 (en)
DK (1) DK0679479T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313336B (en) * 1996-05-24 2000-03-15 John Phillips Abrading tool
US7013986B2 (en) * 2003-05-12 2006-03-21 Nitto Kohki Co., Ltd. Impact tool
RU2370358C2 (en) * 2004-08-26 2009-10-20 Фон Аркс Аг Acerate gun
US7980240B2 (en) * 2005-05-16 2011-07-19 Terminator Ip Sa Breaking machine
EP1733849A1 (en) * 2005-06-15 2006-12-20 Caterpillar, Inc. Tool assembly having a two part body
US7819876B2 (en) * 2005-10-25 2010-10-26 Zimmer Technology, Inc. Orthopaedic pin driver
DE102010030098A1 (en) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft driving-
KR101291349B1 (en) * 2010-06-15 2013-07-30 삼성중공업 주식회사 Grinding apparatus and assembly thereof
CN102922492A (en) * 2012-10-08 2013-02-13 方大控股有限公司 Rotatable chisel jacket assembly
US20190099788A1 (en) * 2017-10-04 2019-04-04 Carl Eckhold Drill drive needlescaler tool
US10814468B2 (en) 2017-10-20 2020-10-27 Milwaukee Electric Tool Corporation Percussion tool
WO2019147919A1 (en) 2018-01-26 2019-08-01 Milwaukee Electric Tool Corporation Percussion tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286980B (en) * 1962-08-07 1969-01-09 Mikiya Toshio Air operated impact tool
JPS59176683U (en) * 1983-05-14 1984-11-26 日東技研株式会社 Electric multi-needle peeling tool
SE436988B (en) * 1983-07-01 1985-02-04 Nilsson Goran Alfred NAL HACK DEVICE NAL HACK DEVICE

Also Published As

Publication number Publication date
DE4414342A1 (en) 1995-10-26
DK0679479T3 (en) 1999-05-25
JPH07299770A (en) 1995-11-14
CN1051492C (en) 2000-04-19
CN1115273A (en) 1996-01-24
DE59503304D1 (en) 1998-10-01
EP0679479A1 (en) 1995-11-02
US5586607A (en) 1996-12-24
JP3638992B2 (en) 2005-04-13

Similar Documents

Publication Publication Date Title
DE2618596C2 (en) Tool holder
DE19815650B4 (en) rotary hammer
EP1326736B1 (en) Tool mounting for a hand machine tool
EP1817139B1 (en) Manual machine tool handle device comprising a vibration-shielding unit
EP0679479B1 (en) Hand tool for removing of surfaces
DE4205259C2 (en) Device for changing tools on a hand-held machine tool
DE2715357A1 (en) TOOL MOUNTING DEVICE
DE2111234B2 (en) Chisel or hammer drill
EP0540841A1 (en) Drilling device for making holes with undercuttings
WO2004108350A1 (en) Hand-held machine tool
EP0868264B1 (en) Electric hand tool
EP0355321A1 (en) Device for manufacturing bore holes with undercutting
DE2712863B2 (en) Impact tool for removing surfaces
DE3828309C3 (en) Hammer drill
EP0266305B1 (en) Drillhammer with percussion mechanism
CH645829A5 (en) Rodent tool.
DE1291299B (en) Impact tool
DE2806611A1 (en) Operation mode switch for electropneumatic hammer drill - has recess for additional locking unit detent action for rotary or percussive setting
DE3511491C2 (en)
DE4135014A1 (en) Damper for over-run of stamping press - consists of tubular piston in a housing with throttling orifice for outlet of air
DE3239174A1 (en) PERFORMANCE TOOL
DE810498C (en) Electric hammer
CH666650A5 (en) BRACKET ON DRILL HAMMER OR HARD DRILLING MACHINE.
DE3249643C2 (en) Tool holder
DE19811437A1 (en) Drill with suction device

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): CH DE DK GB LI SE

17P Request for examination filed

Effective date: 19951115

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19980210

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE DK GB LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59503304

Country of ref document: DE

Date of ref document: 19981001

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

Effective date: 19981104

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: DE

Payment date: 20130116

Year of fee payment: 19

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

Ref country code: DK

Payment date: 20140211

Year of fee payment: 20

Ref country code: CH

Payment date: 20140212

Year of fee payment: 20

Ref country code: SE

Payment date: 20140211

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20140212

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59503304

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59503304

Country of ref document: DE

Effective date: 20140902

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

Ref country code: DE

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

Effective date: 20140902

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20150214

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150213

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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 EXPIRATION OF PROTECTION

Effective date: 20150213