EP0223738B1 - Holding device for drilling and chiselling tools - Google Patents

Holding device for drilling and chiselling tools Download PDF

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Publication number
EP0223738B1
EP0223738B1 EP86810472A EP86810472A EP0223738B1 EP 0223738 B1 EP0223738 B1 EP 0223738B1 EP 86810472 A EP86810472 A EP 86810472A EP 86810472 A EP86810472 A EP 86810472A EP 0223738 B1 EP0223738 B1 EP 0223738B1
Authority
EP
European Patent Office
Prior art keywords
adjusting sleeve
tool holder
locking elements
guide tube
strips
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
EP86810472A
Other languages
German (de)
French (fr)
Other versions
EP0223738A3 (en
EP0223738A2 (en
Inventor
Anton Neumaier
Hans-Jürgen Hoereth
Gerhard Rumpp
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
Priority to AT86810472T priority Critical patent/ATE54596T1/en
Publication of EP0223738A2 publication Critical patent/EP0223738A2/en
Publication of EP0223738A3 publication Critical patent/EP0223738A3/en
Application granted granted Critical
Publication of EP0223738B1 publication Critical patent/EP0223738B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B25D2217/0049—Roll-shaped locking members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S279/00—Chucks or sockets
    • Y10S279/904—Quick change socket
    • Y10S279/905—Quick change socket with ball detent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y10T279/17068—Rotary socket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y10T279/17076—Spreading elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17761—Side detent
    • Y10T279/17803—Rotary cam sleeve

Definitions

  • the invention relates to a tool holder for receiving tools, the insertion end of which has at least one axially closed and at least one longitudinal groove open towards the rear end face, the tool holder having a guide tube with radial passage openings for locking elements for the axially displaceable by means of an axially displaceable or rotatable adjusting sleeve has closed longitudinal grooves and driving strips for the longitudinal grooves open towards the rear end.
  • Tool holders of the type mentioned are already e.g. known from FR-A 2 331 410 and are mainly used in rotary hammers with which a tool is given a rotary or impact movement either in combination or in combination.
  • the tool is non-rotatably mounted in the guide tube, but is axially displaceable to a limited extent.
  • tools which are provided with at least one axially closed and at least one longitudinal groove open towards the rear end face.
  • the driver strips in the guide tube which engage in the open longitudinal grooves of the tool serve to transmit the rotary movement from the guide tube to the tool.
  • the locking elements for the closed longitudinal grooves only serve to axially secure the tools in the tool holder.
  • the invention has for its object to provide a tool holder with locking elements and driving bars, which is suitable for receiving tools with open and closed and only provided with closed longitudinal grooves insertion end.
  • driver bars are radially displaceable.
  • the radially displaceable carrier bars can also be disengaged radially. This enables the use of tools which only have axially closed longitudinal grooves. If, on the other hand, tools are to be accommodated in the tool holder with longitudinal grooves that are open towards the rear end face, the driver strips remain radially engaged in the receiving bore of the guide tube.
  • the carrier strips can expediently be displaced radially by means of the adjusting sleeve.
  • the adjusting sleeve thus serves on the one hand for the radial displacement of the locking elements and on the other hand for the radial displacement of the carrier bars. These two functions can be operated, for example, by different movements such as axial displacement and turning.
  • the adjusting sleeve When the drive bars and the locking elements are radially disengaged, the part of the locking elements and drive bars protruding into the receiving bore of the guide tube in the engaged position must be able to disengage outwards from the guide tube. In order to make this possible, it is advantageous for the adjusting sleeve to have escape niches which permit the radial disengagement of the locking elements and carrier strips.
  • the alternative niches can be arranged axially one behind the other or next to one another in the circumferential direction.
  • both the locking elements need to be engaged. If, on the other hand, tools with open and closed longitudinal grooves are to be accommodated, both the locking elements and the drive bars must be radially engaged.
  • the escape niches are designed and arranged in such a way that when the actuating sleeve is actuated in the locking direction, first the locking elements and then the driving bars are radially displaced. Conversely, when unlocking, the carrier bars are radially disengaged and then that of the locking elements. To change the tools, it must always be unlocked until the carrier bars and the locking elements are disengaged.
  • the adjusting sleeve can be rotated and the alternative niches for the carrier strips exceed the alternative niches for the locking elements in radian measure.
  • the driving bars can be radially disengaged into the escape niches provided for this purpose, while the locking elements are still engaged.
  • the locking elements can also disengage radially into the escape niche provided for this purpose.
  • the adjusting sleeve can be turned directly to move the locking elements and drive bars radially. However, this usually requires a relatively large angle of rotation, which is unfavorable in terms of operation.
  • a switching link for the actuation of the adjusting sleeve in relation to the guide tube is provided.
  • Such a shifting gate can be formed, for example, in a helical shape, so that when the adjusting sleeve is axially displaced, it is simultaneously rotated.
  • Another possibility is to design the shifting gate in a step-like manner, so that the adjusting sleeve for the radial engagement and disengagement of the locking elements can initially only be rotated over part of the entire rotation path. The further rotation of the adjusting sleeve for the radial engagement and disengagement of the driving bars can then only take place after the adjusting sleeve has been axially displaced.
  • the adjusting sleeve can be secured, for example, by means of a spring element in the position holding the locking elements and driving bars in the engaged position. To disengage the locking elements and drive bars, however, the force of this spring element must be overcome.
  • the adjusting sleeve can be locked in at least one end position. This locking can be achieved for example by means of a locking element with which the adjusting sleeve is held in the unlocked position, for example. After changing the tools, the adjusting sleeve is then returned to its starting position by overcoming the locking element.
  • the tool holder shown in FIGS. 1 to 5 is arranged on a device with a housing designated overall by 1.
  • a guide tube designated overall by 2
  • a guide tube is rotatably supported by a bearing 3 in the housing 1.
  • a sealing ring 4 sliding on the guide tube prevents on the one hand the penetration of dirt into the bearing 3 and on the other hand prevents lubricant from escaping from the housing 1.
  • a striker 5 is axially displaceably mounted.
  • an insertion end of a tool denoted overall by 6, is inserted.
  • the insertion end 6 has two diametrically opposed closed longitudinal grooves 6a and two longitudinal grooves 6c arranged offset with respect to these and open towards the rear end face 6b.
  • the guide tube 2 is provided with through openings 2a, into which roller-shaped locking elements 7 are inserted.
  • the guide tube 2 also has recesses 2b for carrier strips 8.
  • an adjusting sleeve is rotatably mounted and axially displaceable to a limited extent.
  • the adjusting sleeve 9 is pushed by means of a compression spring 10 against a securing ring 11 arranged on the guide tube 2.
  • the adjusting sleeve 9 is provided with a threaded bore 9a for an adjusting screw 12.
  • the adjusting screw 12 engages with a pin-shaped part in a control groove 2c on the guide tube 2. Due to the interaction of the control groove 2c with the adjusting screw 12, when the adjusting sleeve 9 is pulled back, the latter is partially rotated about its longitudinal axis.
  • the adjusting sleeve 9 has escape niches 9b and 9c on its inside.
  • the dodging niches 9b serve to dodge the locking elements 7 and the dodging niches 9c, which are somewhat larger in the circumferential direction, serve to partially accommodate the carrier strips 8.
  • the adjusting sleeve 9 is pulled back, the latter is rotated counterclockwise.
  • the escape niches 9c initially reach the area of the driving bars 8.
  • the driving bars 8 can thus disengage radially.
  • the escape niches 9b also reach the area of the locking elements 7, so that they can disengage radially.
  • the insertion end 6 is released and can be pulled out of the guide tube 2.
  • a plug-in end designated overall with 14 is inserted into the guide tube 2.
  • the insertion end 14 differs from the insertion end 6 shown in FIGS. 1 to 3 in that it only has closed longitudinal grooves 14a.
  • the locking elements 7 serve at the same time to hold the insertion end 14 axially and to transmit torque from the guide tube 6 to the insertion end 14.
  • the adjusting sleeve 9 remains in an intermediate position.
  • the driver strips 8 are disengaged into the alternative niches 9c.
  • the locking elements 7, however, are held by the adjusting sleeve 9 in the locking position 14 of the insertion end.
  • a projection 1a arranged on the housing 1 forms together with the adjusting sleeve 9 a kind of labyrinth seal.
  • This labyrinth seal largely prevents the ingress of drilling dust to the sealing ring 4 or to the bearing 3.
  • the adjusting sleeve 9 In order to change the insertion end 14, the adjusting sleeve 9 must also be pulled back against the housing 1 until it stops. The adjusting sleeve 9 reaches the position shown in FIG. 3, which enables the locking elements 7 and the carrier strips 8 to be disengaged radially.
  • FIG. 6 shows a view of the guide tube 2.
  • the passage opening 2a narrowing towards the axis of the guide tube 2 for the locking elements 7 and the approximately helical control groove 2c can be seen.
  • the adjusting sleeve 9 is rotated during its entire displacement path.
  • Fig. 7 shows a further embodiment of a guide tube designated overall by 15.
  • the guide tube 15 also has through openings 15a.
  • the control groove 15c is however stepped.
  • the steep sleeve 9 is first turned up to the stop.
  • the drive bars 8 can disengage radially.
  • the adjusting sleeve 9 must be withdrawn in the axial direction. Only then is it possible to rotate the adjusting sleeve 9, which serves to disengage the locking elements 7 radially.
  • This embodiment has the advantage over the embodiment shown in FIG. 6 that the adjusting sleeve can be locked automatically in the rear position. This leaves both hands free to change tools.

Abstract

A tool chuck for securing a tool bit in a drilling and cutting device includes a guide tube into which the tool bit is inserted and an adjusting sleeve displaceable relative to the guide tube. The guide tube has spaced first and second apertures with the first apertures holding locking members and the second apertures holding entrainment strips. The adjusting sleeve has alternating first and second pockets in its inside surface for receiving the locking members and the entrainment strips. With a tool bit having slots for both the locking members and the entrainment strip, both the locking members and entrainment strips can be displaced radially inwardly by the adjusting sleeve. If the tool bit has only slots for the locking members, the locking action can be effected with the entrainment strips maintained radially outwardly from the tool bit.

Description

Die Erfindung betrifft einen Werkzeughalter zur Aufnahme von Werkzeugen, deren Einsteckende wenigstens eine axial geschlossene und wenigstens eine zur rückwärtigen Stirnseite hin offene Längsnut aufweist, wobei der Werkzeughalter ein Führungsrohr mit radialen Durchtrittsöffnungen für mittels einer axial verschieb- oder verdrehbaren Stellhülse radial verschiebbare Verriegelungselemente für die axial geschlossenen Längsnuten und Mitnahmeleisten für die zur rückwärtigen Stirnseite hin offenen Längsnuten aufweist.The invention relates to a tool holder for receiving tools, the insertion end of which has at least one axially closed and at least one longitudinal groove open towards the rear end face, the tool holder having a guide tube with radial passage openings for locking elements for the axially displaceable by means of an axially displaceable or rotatable adjusting sleeve has closed longitudinal grooves and driving strips for the longitudinal grooves open towards the rear end.

Werkzeughalter der genannten Art sind schon z.B. aus der FR-A 2 331 410 bekannt und werden hauptsächlich bei Bohrhämmern eingesetzt, mit denen einem Werkzeug wahlweise oder kombiniert eine Dreh- und Schlagbewegung erteilt wird. Dabei ist das Werkzeug im Führungsrohr drehfest, jedoch begrenzt axial verschiebbar gelagert.Tool holders of the type mentioned are already e.g. known from FR-A 2 331 410 and are mainly used in rotary hammers with which a tool is given a rotary or impact movement either in combination or in combination. The tool is non-rotatably mounted in the guide tube, but is axially displaceable to a limited extent.

In der Praxis haben sich vor allem Werkzeuge durchgesetzt, die mit wenigstens einer axial geschlossenen und wenigstens einer zur rückwärtigen Stirnseite hin offenen Längsnut versehen sind. Bei einem Werkzeughalter für solche Werkzeuge dienen die in die offenen Längsnuten des Werkzeuges eingreifenden Mitnahmeleisten im Führungsrohr der Uebertragung der Drehbewegung vom Führungsrohr auf das Werkzeug. Die Verriegelungselemente für die geschlossenen Längsnuten dienen dabei nur der axialen Sicherung der Werkzeuge im Werkzeughalter.In practice, tools have prevailed which are provided with at least one axially closed and at least one longitudinal groove open towards the rear end face. In the case of a tool holder for such tools, the driver strips in the guide tube which engage in the open longitudinal grooves of the tool serve to transmit the rotary movement from the guide tube to the tool. The locking elements for the closed longitudinal grooves only serve to axially secure the tools in the tool holder.

Diese Art von Werkzeugen in Verbindung mit dem darauf abgestimmten Werkzeughalter hat sich insbesondere beim Auftreten höherer Drehmomente bewährt, da dabei eine Trennung zwischen den Funktionen Drehmitnahme und axiale Halterung möglich ist. Diese Trennung besteht bei der weiteren, sehr verbreiteten Werkzeugart mit nur wenigstens einer axial geschlossenen Längsnut nicht. Aus diesem Grunde ist diese weitere Werkzeugart für grössere Drehmomente nicht geeignet. Um diesen Mangel zu beheben, finden bei Bohrhämmern vermehrt Werkzeughalter mit Mitnahmeleisten Verwendung. Dies führt zum Nachteil, dass die dennoch sehr verbreiteten Werkzeuge mit nur wenigstens einer axial geschlossenen Längsnut in diesen Werkzeughaltem nicht eingesetzt werden können.This type of tool in conjunction with the tool holder matched to it has proven particularly useful when higher torques occur, since it is possible to separate the functions of rotary driving and axial mounting. This separation does not exist in the further, very common type of tool with only at least one axially closed longitudinal groove. For this reason, this additional type of tool is not suitable for larger torques. In order to remedy this deficiency, tool holders with driving bars are increasingly being used in rotary hammers. This leads to the disadvantage that the nevertheless very widespread tools with only at least one axially closed longitudinal groove cannot be used in these tool holders.

Der Erfindung liegt die Aufgabe zugrunde, einen Werkzeughalter mit Verriegelungselementen und Mitnahmeleisten zu schaffen, der zur Aufnahme von Werkzeugen mit offenen und geschlossenen sowie nur mit geschlossenen Längsnuten versehenem Einsteckende geeignet ist.The invention has for its object to provide a tool holder with locking elements and driving bars, which is suitable for receiving tools with open and closed and only provided with closed longitudinal grooves insertion end.

Gemäss der Erfindung wird dies dadurch erreicht, dass die Mitnahmeleisten radial verschiebbar sind.According to the invention, this is achieved in that the driver bars are radially displaceable.

Durch die erfindungsgemässe Ausbildung können die radial verschiebbaren Mitnahmeleisten somit ebenfalls radial ausgerückt werden. Dies ermöglicht die Verwendung von Werkzeugen, welche nur axial geschlossene Längsnuten aufweisen. Sollen dagegen Werkzeuge mit zur rückwärtigen Stirnseite hin offenen Längsnuten im Werkzeughalter aufgenommen werden, bleiben die Mitnahmeleisten radial in die Aufnahmebohrung des Führungsrohres eingerückt.Due to the design according to the invention, the radially displaceable carrier bars can also be disengaged radially. This enables the use of tools which only have axially closed longitudinal grooves. If, on the other hand, tools are to be accommodated in the tool holder with longitudinal grooves that are open towards the rear end face, the driver strips remain radially engaged in the receiving bore of the guide tube.

Zur Erzielung einer kompakten Bauweise des Werkzeughalters sind zweckmässigerweise die Mitnahmeleisten mittels der Stellhülse radial verschiebbar. Die Stellhülse dient somit einerseits zum radialen Verschieben der Verriegelungselemente sowie andererseits zum radialen Verschieben der Mitnahmeleisten. Diese beiden Funktionen können beispielsweise durch unterschiedliche Bewegungen wie axiales Verschieben und Drehen betätigt werden.In order to achieve a compact construction of the tool holder, the carrier strips can expediently be displaced radially by means of the adjusting sleeve. The adjusting sleeve thus serves on the one hand for the radial displacement of the locking elements and on the other hand for the radial displacement of the carrier bars. These two functions can be operated, for example, by different movements such as axial displacement and turning.

Beim radialen Ausrücken der Mitnahmeleisten und der Verriegelungselemente muss der in eingerückter Stellung in die Aufnahmebohrung des Führungsrohres ragende Teil der Verriegelungselemente und Mitnahmeleisten nach aussen aus dem Führungsrohr ausrücken können. Um dies zu ermöglichen, ist es vorteilhaft, dass die Stellhülse das radiale Ausrücken der Verriegelungselemente und Mitnahmeleisten ermöglichende Ausweichnischen aufweist. Je nach Anordnung der Verriegelungselemente und Mitnahmeleisten können die Ausweichnischen beispielsweise axial hintereinander oder in Umfangsrichtung nebeneinander angeordnet werden.When the drive bars and the locking elements are radially disengaged, the part of the locking elements and drive bars protruding into the receiving bore of the guide tube in the engaged position must be able to disengage outwards from the guide tube. In order to make this possible, it is advantageous for the adjusting sleeve to have escape niches which permit the radial disengagement of the locking elements and carrier strips. Depending on the arrangement of the locking elements and driving bars, the alternative niches can be arranged axially one behind the other or next to one another in the circumferential direction.

Sollen im Werkzeughalter Werkzeuge nur mit geschlossenen Längsnuten aufgenommen werden, so müssen nur die Verriegelungselemente eingerückt werden. Sind dagegen Werkzeuge mit offenen und geschlossenen Längsnuten aufzunehmen, so müssen sowohl die Verriegelungselemente als auch die Mitnahmeleisten radial eingerückt werden. Um dies zu ermöglichen, ist es zweckmässig, dass die Ausweichnischen derart ausgebildet und angeordnet sind, dass beim Betätigen der Stellhülse in Verriegelungsrichtung zuerst die Verriegelungselemente und anschliessend die Mitnahmeleisten radial verschoben werden. Umgekehrt erfolgt dann beim Entriegeln zuerst das radiale Ausrücken der Mitnahmeleisten und anschliessend dasjenige der Verriegelungselemente. Für das Wechseln der Werkzeuge muss somit immer soweit entriegelt werden, bis die Mitnahmeleisten und die Verriegelungselemente ausgerückt sind.If tools should only be received in the tool holder with closed longitudinal grooves, only the locking elements need to be engaged. If, on the other hand, tools with open and closed longitudinal grooves are to be accommodated, both the locking elements and the drive bars must be radially engaged. To make this possible, it is expedient that the escape niches are designed and arranged in such a way that when the actuating sleeve is actuated in the locking direction, first the locking elements and then the driving bars are radially displaced. Conversely, when unlocking, the carrier bars are radially disengaged and then that of the locking elements. To change the tools, it must always be unlocked until the carrier bars and the locking elements are disengaged.

Für eine einfache Bedienung des Werkzeughalters ist es vorteilhaft, dass die Stellhülse verdrehbar ist und die Ausweichnischen für die Mitnahmeleisten die Ausweichnischen für die Verriegelungselemente im Bogenmass übersteigen. Somit können beim Verdrehen der Stellhülse die Mitnahmeleisten radial in die dafür vorgesehenen Ausweichnischen ausgerückt werden, während die Verriegelungselemente noch eingerückt sind. Beim Weiterdrehen der Stellhülse können dann auch die Verriegelungselemente in die dafür vorgesehene Ausweichnische radial ausrücken.For simple operation of the tool holder, it is advantageous that the adjusting sleeve can be rotated and the alternative niches for the carrier strips exceed the alternative niches for the locking elements in radian measure. Thus, when the adjusting sleeve is rotated, the driving bars can be radially disengaged into the escape niches provided for this purpose, while the locking elements are still engaged. When the adjusting sleeve is turned further, the locking elements can also disengage radially into the escape niche provided for this purpose.

Die Stellhülse kann zum radialen Verschieben der Verriegelungselemente und Mitnahmeleisten direkt verdreht werden. Dafür ist jedoch meist ein relativ grosser Verdrehwinkel erforderlich, was bedienungsmässig ungünstig ist. Für eine gute Bedienbarkeit des Werkzeughalters ist es daher zweckmässig, dass eine Schaltkulisse für die Betätigung der Stellhülse gegenüber dem Führungsrohr vorgesehen ist. Eine solche Schaltkulisse kann beispielsweise schraubenlinienförmig ausgebildet werden, so dass beim axialen Verschieben der Stellhülse gleichzeitig eine Verdrehung derselben erfolgt. Eine weitere Möglichkeit besteht darin, die Schaltkulisse stufenförmig auszubilden, so dass die Stellhülse zum radialen Ein- und Ausrücken der Verriegelungselemente zunächst nur über einen Teil des gesamten Verdrehweges verdreht werden kann. Die weitere Verdrehung der Stellhülse zum radialen Ein- und Ausrücken der Mitnahmeleisten kann dann erst nach axialem Verschieben der Stellhülse erfolgen.The adjusting sleeve can be turned directly to move the locking elements and drive bars radially. However, this usually requires a relatively large angle of rotation, which is unfavorable in terms of operation. For good operability of the tool holder, it is therefore expedient for a switching link for the actuation of the adjusting sleeve in relation to the guide tube is provided. Such a shifting gate can be formed, for example, in a helical shape, so that when the adjusting sleeve is axially displaced, it is simultaneously rotated. Another possibility is to design the shifting gate in a step-like manner, so that the adjusting sleeve for the radial engagement and disengagement of the locking elements can initially only be rotated over part of the entire rotation path. The further rotation of the adjusting sleeve for the radial engagement and disengagement of the driving bars can then only take place after the adjusting sleeve has been axially displaced.

Die Stellhülse kann beispielsweise mittels eines Federelementes in der die Verriegelungselemente und Mitnahmeleisten in eingerückter Stellung haltenden Lage gesichert werden. Zum Ausrücken der Verriegelungselemente und Mitnahmeleisten muss jedoch die Kraft dieses Federelementes überwunden werden. Um die Bedienbarkeit des Werkzeughalters beim Wechseln der Werkzeuge zu erleichtern, ist es vorteilhaft, dass die Stellhülse wenigstens in einer Endstellung arretierbar ist. Diese Arretierung kann beispielsweise mittels eines Rastelementes erreicht werden, mit dem die Stellhülse beispielsweise in der entriegelten Stellung gehalten wird. Nach dem Wechseln der Werkzeuge wird die Stellhülse sodann unter Ueberwindung des Rastelementes wieder in ihre Ausgangsstellung zurückgebracht.The adjusting sleeve can be secured, for example, by means of a spring element in the position holding the locking elements and driving bars in the engaged position. To disengage the locking elements and drive bars, however, the force of this spring element must be overcome. In order to facilitate the operability of the tool holder when changing the tools, it is advantageous that the adjusting sleeve can be locked in at least one end position. This locking can be achieved for example by means of a locking element with which the adjusting sleeve is held in the unlocked position, for example. After changing the tools, the adjusting sleeve is then returned to its starting position by overcoming the locking element.

Die Erfindung soll nachstehend anhand der sie beispielsweise wiedergebenden Zeichnungen näher erläutert werden. Es zeigen:

  • Fig. 1 einen erfindungsgemässen Werkzeughalter, im Längsschnitt, entlang der Linie I-I in Fig. 2, in verriegelter Stellung;
  • Fig. 2 einen Querschnitt durch den in Fig. 1 dargestellten Werkzeughalter, entlang der Linie 11-11;
  • Fig. 3 einen Querschnitt durch den Werkzeughalter entsprechend Fig. 2, in entriegelter Stellung;
  • Fig. 4 den Werkzeughalter entsprechend Fig. 1, mit einem anderen Werkzeug, in verriegelter Stellung;
  • Fig. 5 einen Querschnitt durch den Werkzeughalter gemäss Fig. 4, entlang der Linie V-V;
  • Fig. 6 eine Ansicht eines Teils des Werkzeughalters gemäss Fig. 4, in Richtung des Pfeiles VI;
  • Fig. 7 eine weitere Ausführung eines Teils eines erfindungsgemässen Werkzeughalters entsprechend Fig. 6.
The invention will be explained in more detail below with reference to the drawings, for example. Show it:
  • 1 shows a tool holder according to the invention, in longitudinal section, along the line II in FIG. 2, in the locked position;
  • FIG. 2 shows a cross section through the tool holder shown in FIG. 1, along the line 11-11;
  • 3 shows a cross section through the tool holder corresponding to FIG. 2, in the unlocked position;
  • 4 shows the tool holder corresponding to FIG. 1, with another tool, in the locked position;
  • 5 shows a cross section through the tool holder according to FIG. 4, along the line VV;
  • FIG. 6 is a view of a part of the tool holder according to FIG. 4, in the direction of arrow VI;
  • 7 shows a further embodiment of part of a tool holder according to the invention corresponding to FIG. 6.

Der aus den Fig. 1 bis 5 ersichtliche Werkzeughalter ist an einem Gerät mit einem insgesamt mit 1 bezeichneten Gehäuse angeordnet. Ein insgesamt mit 2 bezeichnetes Führungsrohr ist über ein Lager 3 im Gehäuse 1 drehbar gelagert. Ein auf dem Führungsrohr gleitender Dichtring 4 verhindert einerseits das Eindringen von Verschmutzungen zum Lager 3 und auch andererseits das Austreten von Schmiermittel aus dem Gehäuse 1. Im Führungsrohr 2 ist ein Döpper 5 axial verschiebbar gelagert. In das freie Ende des Führungsrohres 2 ist ein insgesamt mit 6 bezeichnetes Einsteckende eines Werkzeuges eingesetzt. Das Einsteckende 6 weist zwei einander diametral gegenüberliegende geschlossene Längsnuten 6a sowie zwei gegenüber diesen versetzt angeordnete, zur rückwärtigen Stirnseite 6b hin offene Längsnuten 6c auf. Das Führungsrohr 2 ist mit Durchtrittsöffnungen 2a versehen, in welche walzenförmige Verriegelungselemente 7 eingesetzt sind. Das Führungsrohr 2 weist ausserdem Ausnehmungen 2b für Mitnahmeleisten 8 auf.The tool holder shown in FIGS. 1 to 5 is arranged on a device with a housing designated overall by 1. A guide tube, designated overall by 2, is rotatably supported by a bearing 3 in the housing 1. A sealing ring 4 sliding on the guide tube prevents on the one hand the penetration of dirt into the bearing 3 and on the other hand prevents lubricant from escaping from the housing 1. In the guide tube 2, a striker 5 is axially displaceably mounted. In the free end of the guide tube 2, an insertion end of a tool, denoted overall by 6, is inserted. The insertion end 6 has two diametrically opposed closed longitudinal grooves 6a and two longitudinal grooves 6c arranged offset with respect to these and open towards the rear end face 6b. The guide tube 2 is provided with through openings 2a, into which roller-shaped locking elements 7 are inserted. The guide tube 2 also has recesses 2b for carrier strips 8.

In der in Fig. 1 und 2 dargestellten Stellung greifen die Verriegelungselemente 7 in die geschlossenen Längsnuten 6a und die Mitnahmeleisten 8 in die offenen Längsnuten 6c des Einsteckendes 6 ein. Die Verriegelungselemente 7 dienen der axialen Halterung des Einsteckendes 6 und die Mitnahmeleisten 8 übertragen das Drehmoment vom Führungsrohr 2 auf das Einsteckende 6. Auf dem Führungsrohr 2 ist eine insgesamt mit 9 bezeichnete Stellhülse drehbar sowie begrenzt axial verschiebbar gelagert.In the position shown in FIGS. 1 and 2, the locking elements 7 engage in the closed longitudinal grooves 6a and the driver strips 8 in the open longitudinal grooves 6c of the insertion end 6. The locking elements 7 serve to hold the insertion end 6 axially, and the driving strips 8 transmit the torque from the guide tube 2 to the insertion end 6. On the guide tube 2, an adjusting sleeve, generally designated 9, is rotatably mounted and axially displaceable to a limited extent.

In der in Fig. 1 dargestellten Ausgangslage wird die Stellhülse 9 mittels einer Druckfeder 10 gegen einen auf dem Führungsrohr 2 angeordneten Sicherungsring 11 geschoben. Die Stellhülse 9 ist mit einer Gewindebohrung 9a für eine Stellschraube 12 versehen. Die Stellschraube 12 greift mit einem stiftförmigen Teil in eine Steuernut 2c am Führungsrohr 2 ein. Durch das Zusammenwirken der Steuernut 2c mit der Stellschraube 12 erfolgt beim Zurückziehen der Stellhülse 9 ein teilweises Verdrehen derselben um ihre Längsachse.In the starting position shown in FIG. 1, the adjusting sleeve 9 is pushed by means of a compression spring 10 against a securing ring 11 arranged on the guide tube 2. The adjusting sleeve 9 is provided with a threaded bore 9a for an adjusting screw 12. The adjusting screw 12 engages with a pin-shaped part in a control groove 2c on the guide tube 2. Due to the interaction of the control groove 2c with the adjusting screw 12, when the adjusting sleeve 9 is pulled back, the latter is partially rotated about its longitudinal axis.

Wie insbesondere die Figuren 2, 3 und 5 zeigen, weist die Stellhülse 9 auf ihrer Innenseite Ausweichnischen 9b und 9c auf. Die Ausweichnischen 9b dienen dem Ausweichen der Verriegelungselemente 7 und die in Umfangsrichtung etwas grösseren Ausweichnischen 9c dienen der teilweisen Aufnahme der Mitnahmeleisten 8. Beim Zurückziehen der Stellhülse 9 wird diese im Gegenuhrzeigersinn verdreht.As particularly shown in FIGS. 2, 3 and 5, the adjusting sleeve 9 has escape niches 9b and 9c on its inside. The dodging niches 9b serve to dodge the locking elements 7 and the dodging niches 9c, which are somewhat larger in the circumferential direction, serve to partially accommodate the carrier strips 8. When the adjusting sleeve 9 is pulled back, the latter is rotated counterclockwise.

Wie Fig. 5 zeigt, gelangen dabei zunächst die Ausweichnischen 9c in den Bereich der Mitnahmeleisten 8. Die Mitnahmeleisten 8 können somit radial ausrücken. Beim Weiterdrehen der Stellhülse 9 in die in Fig. 3 dargestellte Stellung gelangen auch die Ausweichnischen 9b in den Bereich der Verriegelungselemente 7, so dass diese radial ausrücken können. Dadurch wird das Einsteckende 6 freigegeben und kann aus dem Führungsrohr 2 herausgezogen werden.As shown in FIG. 5, the escape niches 9c initially reach the area of the driving bars 8. The driving bars 8 can thus disengage radially. When the adjusting sleeve 9 is turned further into the position shown in FIG. 3, the escape niches 9b also reach the area of the locking elements 7, so that they can disengage radially. As a result, the insertion end 6 is released and can be pulled out of the guide tube 2.

In Fig. 4 und 5 ist ein insgesamt mit 14 bezeichnetes Einsteckende in das Führungsrohr 2 eingesetzt. Das Einsteckende 14 unterscheidet sich von dem in Fig. 1 bis 3 dargestellten Einsteckende 6 dadurch, dass es nur geschlossene Längsnuten 14a aufweist. Die Verriegelungselemente 7 dienen dabei gleichzeitig der axialen Halterung des Einsteckendes 14 sowie der Drehmomentübertragung vom Führungsrohr 6 auf das Einsteckende 14.4 and 5, a plug-in end designated overall with 14 is inserted into the guide tube 2. The insertion end 14 differs from the insertion end 6 shown in FIGS. 1 to 3 in that it only has closed longitudinal grooves 14a. The locking elements 7 serve at the same time to hold the insertion end 14 axially and to transmit torque from the guide tube 6 to the insertion end 14.

Wie insbesondere aus Fig. 5 ersichtlich ist, bleibt die Stellhülse 9 in einer Zwischenstellung stehen. Dabei sind die Mitnahmeleisten 8 in die Ausweichnischen 9c ausgerückt. Die Verriegelungselemente 7 werden dagegen durch die Stellhülse 9 in der das Einsteckende 14 verriegelnden Stellung gehalten.As can be seen in particular from FIG. 5, the adjusting sleeve 9 remains in an intermediate position. The driver strips 8 are disengaged into the alternative niches 9c. The locking elements 7, however, are held by the adjusting sleeve 9 in the locking position 14 of the insertion end.

Wie insbesondere aus Fig. 4 ersichtlich ist, bildet ein am Gehäuse 1 angeordneter Ansatz 1a zusammen mit der Stellhülse 9 eine Art Labyrinthdichtung. Diese Labyrinthdichtung verhindert weitgehend das Eindringen von Bohrstaub zum Dichtring 4 bzw zum Lager 3. Zum Wechseln des Einsteckendes 14 muss die Stellhülse 9 ebenfalls bis zum Anschlag gegen das Gehäuse 1 zurückgezogen werden. Dabei gelangt die Stellhülse 9 in die in Fig. 3 dargestellte, ein radiales Ausrücken der Verriegelungselemente 7 und der Mitnahmeleisten 8 ermöglichende Stellung.As can be seen in particular from FIG. 4, a projection 1a arranged on the housing 1 forms together with the adjusting sleeve 9 a kind of labyrinth seal. This labyrinth seal largely prevents the ingress of drilling dust to the sealing ring 4 or to the bearing 3. In order to change the insertion end 14, the adjusting sleeve 9 must also be pulled back against the housing 1 until it stops. The adjusting sleeve 9 reaches the position shown in FIG. 3, which enables the locking elements 7 and the carrier strips 8 to be disengaged radially.

Fig. 6 zeigt eine Ansicht des Führungsrohres 2. Dabei ist einerseits die sich zur Achse des Führungsrohres 2 hin verengende Durchtrittsöffnung 2a für die Verriegelungselemente 7 sowie die etwa schraubenlinienförmig verlaufende Steuernut 2c ersichtlich. Durch diese Ausbildung der Steuernut 2c wird die Stellhülse 9 während ihres gesamten Verschiebeweges verdreht.6 shows a view of the guide tube 2. On the one hand, the passage opening 2a narrowing towards the axis of the guide tube 2 for the locking elements 7 and the approximately helical control groove 2c can be seen. With this design of the control groove 2c, the adjusting sleeve 9 is rotated during its entire displacement path.

Fig. 7 zeigt eine weitere Ausführung eines insgesamt mit 15 bezeichneten Führungsrohres. Das Führungsrohr 15 weist ebenfalls Durchtrittsöffnungen 15a auf. Im Unterschied zu der in Fig. 6 dargestellten Ausführung ist die Steuernut 15c jedoch gestuft ausgebildet. Bei dieser Ausführung wird die Steilhülse 9 zunächst bis zum Anschlag verdreht. Dabei können die Mitnahmeleisten 8 radial ausrücken. Vor dem weiteren, dem radialen Ausrücken der Verriegelungselemente 7 dienenden Verdrehen der Stellhülse 9 muss die Stellhülse 9 in axialer Richtung zurückgezogen werden. Erst dann ist ein weiteres, dem radialen Ausrücken der Verriegelungselemente 7 dienendes Verdrehen der Stellhülse 9 möglich. Diese Ausführung hat gegenüber der in Fig. 6 dargestellten Ausführung den Vorteil, dass die Stellhülse in der rückwärtigen Stellung selbsttätig arretiert werden kann. Somit bleiben zum Wechseln der Werkzeuge beide Hände frei.Fig. 7 shows a further embodiment of a guide tube designated overall by 15. The guide tube 15 also has through openings 15a. In contrast to the embodiment shown in FIG. 6, the control groove 15c is however stepped. In this embodiment, the steep sleeve 9 is first turned up to the stop. The drive bars 8 can disengage radially. Before the adjusting sleeve 9 is rotated further, which serves to radially disengage the locking elements 7, the adjusting sleeve 9 must be withdrawn in the axial direction. Only then is it possible to rotate the adjusting sleeve 9, which serves to disengage the locking elements 7 radially. This embodiment has the advantage over the embodiment shown in FIG. 6 that the adjusting sleeve can be locked automatically in the rear position. This leaves both hands free to change tools.

Claims (7)

1. A tool holder for the reception of tools (6), the plug-in end of which has at least one axially closed longitudinal groove (6a) and at least one longitudinal groove (6c) which is open towards the rearward end face (6b), in which respect the tool holder has a guide tube (2) having radial passage apertures (2a) for locking elements (7), for the axially closed longitudinal grooves (6a), which are radially displaceable by means of an axially displaceable or rotatable adjusting sleeve (9), and entrainment strips (8) for the longitudinal grooves (6c) which are open towards the rearward end face (6b), characterised in that the entrainment strips (8) are radially displaceable.
2. A tool holder according to claim 1, characterised in that the entrainment strips (8) are radially displaceable by means of the adjusting sleeve (9).
3. A tool holder according to claim 2, characterised in that the adjusting sleeve (9) has deflection recesses (9b, 9c) which make possible the radial disengagement of the locking elements (7) and entrainment strips (8).
4. A tool holder according to claim 3, characterised in that the deflection recesses (9b, 9c) are formed and arranged in such a way that in the locking direction firstly the locking elements (7) and then the entrainment strips (8) are displaced radially.
5. A tool holder according to claim 4, characterised in that the adjusting sleeve (9) is rotatable and the deflection recesses (9c) for the entrainment strips (8) exceed in arcuate extent the deflection recesses (9b) for the locking elements (7).
6. A tool holder according to one of claims 1 to 5, characterised by a slotted guide (2c, 15c) for the actuation of the adjusting sleeve (9) relative to the guide tube (2).
7. A tool holder according to one of claims 1 to 6, characterised in that the adjusting sleeve (9) is capable of being stopped at least in one end position.
EP86810472A 1985-11-11 1986-10-22 Holding device for drilling and chiselling tools Expired - Lifetime EP0223738B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810472T ATE54596T1 (en) 1985-11-11 1986-10-22 TOOL HOLDER FOR DRILLING AND CHISELING TOOLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3539912 1985-11-11
DE19853539912 DE3539912A1 (en) 1985-11-11 1985-11-11 TOOL HOLDER FOR DRILLING AND CHISEL TOOLS

Publications (3)

Publication Number Publication Date
EP0223738A2 EP0223738A2 (en) 1987-05-27
EP0223738A3 EP0223738A3 (en) 1988-08-31
EP0223738B1 true EP0223738B1 (en) 1990-07-18

Family

ID=6285654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810472A Expired - Lifetime EP0223738B1 (en) 1985-11-11 1986-10-22 Holding device for drilling and chiselling tools

Country Status (10)

Country Link
US (1) US4691929A (en)
EP (1) EP0223738B1 (en)
JP (1) JPS62114887A (en)
AT (1) ATE54596T1 (en)
AU (1) AU582716B2 (en)
CA (1) CA1273831A (en)
DE (2) DE3539912A1 (en)
DK (1) DK166439B1 (en)
ES (1) ES2003494A6 (en)
HU (1) HU195141B (en)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708040A (en) * 1987-01-27 1987-11-24 Kennametal Inc. Lock rod and apparatus for holding a toolholder
FR2615430A1 (en) * 1987-05-02 1988-11-25 Hilti Ag Tool holder
DE3717614A1 (en) * 1987-05-25 1988-12-15 Hilti Ag TOOL HOLDER FOR TOOLS
DE3721771A1 (en) * 1987-07-01 1989-01-12 Hilti Ag HAND DEVICE
FR2629376B1 (en) * 1988-04-01 1994-04-29 Prospection & Inventions DRILL TOOL HOLDER, PARTICULARLY FOR DRILLS WITH OR WITHOUT DRIVE GROOVE
FR2635039B1 (en) * 1988-08-05 1990-11-02 Prospection & Inventions FOREST INCLUDING A TAIL WITH GROOVES
DE4105414A1 (en) * 1991-02-21 1992-08-27 Hilti Ag TOOL AND TOOL HOLDER FOR HAND TOOLS
DE4132023A1 (en) * 1991-09-26 1993-04-01 Bosch Gmbh Robert FITTING ON HAND MACHINE TOOLS
DE4137120A1 (en) * 1991-11-12 1993-05-13 Hilti Ag IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS
US5279194A (en) * 1992-02-13 1994-01-18 Kennametal Inc. Ball lock assembly without a canister
US5340129A (en) * 1993-01-21 1994-08-23 Minnesota Mining And Manufacturing Company Saw blade retention system
USRE36269E (en) * 1993-01-21 1999-08-17 Minnesota Mining And Manufacturing Company Saw blade retention system
DE19537560A1 (en) * 1995-10-09 1997-04-10 Hilti Ag Tool holder
ATE236764T1 (en) * 1995-10-12 2003-04-15 Bosch Gmbh Robert TOOLS AND TOOL HOLDER FOR ELECTRICAL MACHINES WITH DRILLING AND/OR IMPACT OPERATION
JP3450558B2 (en) * 1995-12-25 2003-09-29 株式会社マキタ Electric tool
DE19604282A1 (en) * 1996-02-07 1997-08-14 Bosch Gmbh Robert Tool holder with holder for various tool systems
US6725548B1 (en) * 1996-03-01 2004-04-27 Milwaukee Electric Tool Corporation Keyless blade clamp mechanism
JP3606021B2 (en) * 1996-12-13 2005-01-05 日立工機株式会社 Impact tool
US5951026A (en) * 1997-12-12 1999-09-14 Black & Decker Inc. Removable chuck
US6079716A (en) * 1997-12-12 2000-06-27 Black & Decker Inc. Removable chuck
US6209208B1 (en) * 1998-10-09 2001-04-03 Milwaukee Electric Tool Corporarion Keyless blade clamp mechanism
US6302406B1 (en) 2000-01-10 2001-10-16 Microaire Surgical Instruments, Inc. Connector assembly for a surgical saw blade
CA2339430A1 (en) * 2000-03-10 2001-09-10 Black & Decker Inc. Hammer
US6638290B2 (en) * 2000-12-06 2003-10-28 Microaire Surgical Instruments, Inc. Connector assembly for a surgical tool
GB0105547D0 (en) 2001-03-07 2001-04-25 Black & Decker Inc Tool holder for a rotary hammer or a chisel hammer
US20040239047A1 (en) * 2001-08-16 2004-12-02 Kent Edwin J. Composite fuel permeation barrier seal
GB0121947D0 (en) * 2001-09-12 2001-10-31 Black & Decker Inc Tool holder for hammer
US7032683B2 (en) * 2001-09-17 2006-04-25 Milwaukee Electric Tool Corporation Rotary hammer
US6554290B2 (en) * 2001-10-03 2003-04-29 Kun-Tan Lin Tool structure for clamping a tool head quickly
US11337728B2 (en) 2002-05-31 2022-05-24 Teleflex Life Sciences Limited Powered drivers, intraosseous devices and methods to access bone marrow
US11298202B2 (en) 2002-05-31 2022-04-12 Teleflex Life Sciences Limited Biopsy devices and related methods
US10973545B2 (en) 2002-05-31 2021-04-13 Teleflex Life Sciences Limited Powered drivers, intraosseous devices and methods to access bone marrow
US8641715B2 (en) 2002-05-31 2014-02-04 Vidacare Corporation Manual intraosseous device
US8668698B2 (en) 2002-05-31 2014-03-11 Vidacare Corporation Assembly for coupling powered driver with intraosseous device
EP3292821A1 (en) 2002-05-31 2018-03-14 Vidacare LLC Apparatus and method to access bone marrow
GB2395158B (en) * 2002-11-14 2005-11-16 Black & Decker Inc Tool holder for a rotary hammer
US20040163264A1 (en) * 2003-02-21 2004-08-26 Simonz John C. Hand saw
US9504477B2 (en) 2003-05-30 2016-11-29 Vidacare LLC Powered driver
GB2414701A (en) * 2004-06-05 2005-12-07 Black & Decker Inc Rotary spindle for a power tool
JP2006007339A (en) * 2004-06-23 2006-01-12 Senho Kogyo Kofun Yugenkoshi Chuck
US20050285355A1 (en) * 2004-06-24 2005-12-29 Yuan-Ho Lin Quick removable chuck assembly and its cutting tool
US8484884B2 (en) * 2004-07-26 2013-07-16 Andrew Zuk Fishing lure and kit
US20060088393A1 (en) * 2004-10-26 2006-04-27 Cooper Vincent P Extended sleeve removable chuck
JP4552843B2 (en) * 2005-12-09 2010-09-29 パナソニック電工株式会社 Hammer tool adapter
CN2885472Y (en) * 2005-12-13 2007-04-04 南京德朔实业有限公司 Saw bit holding device for reciprocating saw
DE102006036955A1 (en) * 2006-08-08 2008-02-14 Robert Bosch Gmbh tool holder
US8944069B2 (en) 2006-09-12 2015-02-03 Vidacare Corporation Assemblies for coupling intraosseous (IO) devices to powered drivers
US8221363B2 (en) 2006-10-18 2012-07-17 Baxter Healthcare S.A. Luer activated device with valve element under tension
US7981090B2 (en) 2006-10-18 2011-07-19 Baxter International Inc. Luer activated device
US7753338B2 (en) 2006-10-23 2010-07-13 Baxter International Inc. Luer activated device with minimal fluid displacement
US8020876B2 (en) * 2007-04-04 2011-09-20 Hung Wei Lin Tool having clamping chuck
DE102007000453A1 (en) * 2007-08-20 2009-02-26 Hilti Aktiengesellschaft Changeable tool holder
TW200911490A (en) * 2007-09-11 2009-03-16 Mobiletron Electronics Co Ltd Saw gripping device for sawing machine
DE102007056531A1 (en) * 2007-11-23 2009-05-28 Hilti Aktiengesellschaft Hand tool machine with impact tool holder and associated tool
JP5072677B2 (en) * 2008-03-21 2012-11-14 株式会社マキタ Impact tool
US8230607B2 (en) * 2008-05-09 2012-07-31 Milwaukee Electric Tool Corporation Keyless blade clamp for a power tool
US8465492B2 (en) * 2008-06-30 2013-06-18 Medtronic Xomed, Inc. Chuck for reciprocating surgical instrument
US8220804B2 (en) * 2009-02-05 2012-07-17 Kennametal Inc. Toolholder assembly with axial clamping mechanism
DE102009028890B4 (en) * 2009-08-26 2014-11-20 Hilti Aktiengesellschaft tool holder
JP5507324B2 (en) * 2010-04-26 2014-05-28 株式会社マキタ Bit mounting device for screw tightening tool
JP6287205B2 (en) * 2013-12-27 2018-03-07 日立工機株式会社 Power working machine
WO2015168359A1 (en) * 2014-04-30 2015-11-05 Gyrus Acmi, Inc., D.B.A. Olympus Surgical Rotary tool with improved coupling assembly
CN104589091B (en) * 2015-01-15 2017-05-10 上海信奥科技有限公司 Locking device for cutter of cutting machine
US9579731B2 (en) * 2015-07-29 2017-02-28 Kaarle Homola Drill chuck assembly
EP3789162A1 (en) * 2019-09-04 2021-03-10 Hilti Aktiengesellschaft Rotary drive for a handheld machine tool
WO2022005929A1 (en) 2020-07-02 2022-01-06 Milwaukee Electric Tool Corporation Rotary impact tool having bit holding device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2354168C2 (en) * 1973-10-30 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Tool holder for a hammer drill
US3985368A (en) * 1974-11-25 1976-10-12 The Bendix Corporation Quick-change spindle nose adapter
DE7536182U (en) * 1975-11-14 1978-02-02 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR TORQUE TRANSMISSION
DE7610304U1 (en) * 1976-04-02 1976-08-05 Otto Baier Kg Maschinenfabrik, 7140 Ludwigsburg TOOL HOLDER FOR A DRILL
DE2618596C2 (en) * 1976-04-28 1984-05-17 Robert Bosch Gmbh, 7000 Stuttgart Tool holder
DE2650134A1 (en) * 1976-10-30 1978-05-11 Bosch Gmbh Robert TOOL SHAFT
DE2806611C2 (en) * 1978-02-16 1983-10-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for switching an electropneumatic hammer drill from rotary drilling to percussion drilling
DE2811328C2 (en) * 1978-03-16 1986-09-25 Robert Bosch Gmbh, 7000 Stuttgart Drill chuck
SU778944A1 (en) * 1978-12-26 1980-11-15 Ордена Трудового Красного Знамени Институт Сверхтвердых Материалов Ан Украинской Сср Chuck for securing end tool
DE3414300A1 (en) * 1984-04-16 1985-10-24 Hilti Ag, Schaan TOOL HOLDER FOR DRILLING AND CHISEL DEVICES

Also Published As

Publication number Publication date
EP0223738A3 (en) 1988-08-31
DK166439B1 (en) 1993-05-24
EP0223738A2 (en) 1987-05-27
ES2003494A6 (en) 1988-11-01
AU6503386A (en) 1987-05-14
DK533486D0 (en) 1986-11-07
CA1273831A (en) 1990-09-11
ATE54596T1 (en) 1990-08-15
US4691929A (en) 1987-09-08
HUT42988A (en) 1987-09-28
DK533486A (en) 1987-05-12
DE3672760D1 (en) 1990-08-23
AU582716B2 (en) 1989-04-06
HU195141B (en) 1988-04-28
DE3539912A1 (en) 1987-05-14
JPS62114887A (en) 1987-05-26
JPH0581392B2 (en) 1993-11-12

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