EP1724068B1 - Outil de perçage - Google Patents

Outil de perçage Download PDF

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Publication number
EP1724068B1
EP1724068B1 EP05010813A EP05010813A EP1724068B1 EP 1724068 B1 EP1724068 B1 EP 1724068B1 EP 05010813 A EP05010813 A EP 05010813A EP 05010813 A EP05010813 A EP 05010813A EP 1724068 B1 EP1724068 B1 EP 1724068B1
Authority
EP
European Patent Office
Prior art keywords
drilling tool
chuck
tool according
drive shaft
locking
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.)
Not-in-force
Application number
EP05010813A
Other languages
German (de)
English (en)
Other versions
EP1724068A1 (fr
Inventor
Gerhard Maurer
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Priority to EP05010813A priority Critical patent/EP1724068B1/fr
Priority to DE502005003653T priority patent/DE502005003653D1/de
Priority to AT05010813T priority patent/ATE391585T1/de
Publication of EP1724068A1 publication Critical patent/EP1724068A1/fr
Application granted granted Critical
Publication of EP1724068B1 publication Critical patent/EP1724068B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/003—Clutches specially adapted therefor
    • 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
    • B25D17/005—Attachments or adapters placed between tool and hammer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/165—Overload clutches, torque limiters

Definitions

  • the invention relates to a tool-less mountable on a drive spindle and removable tool chuck, and a drill tool, in particular hammer drill, with a tool-less on a drive spindle mountable and removable tool chuck (quick-change chuck) with a manually operated locking and release mechanism for the tool chuck, and with a in the Tool chuck integrated clutch device, for bringing about a rotary coupling between the drive spindle and the tool chuck.
  • a drilling tool device having the features of the preamble of claim 1 and a tool chuck having the features of the preamble of claim 21 are made EP 1236538 known.
  • a drill tool of the above type has become known for example by the hammer drill of the applicant of the trade name UHE and in the main catalog 2005/2006 described above.
  • Overload clutches in electrical hand tool devices are for example by DE 101 31 220 Cl became known.
  • the object of the present invention is to improve drilling tool devices, in particular rotary hammers, with regard to further functionality.
  • quick change chuck can be used to hold and use, for example, a hammer chuck for a hammer or hammer drill operation or to select either a pure drill chuck for a drilling operation or in conjunction with bits for a screwing.
  • the integration of an overload clutch with adjustable torque in a quick-change chuck increases the functionality of the tool device and proves to be advantageous in this respect.
  • the Drehmomenteinstell shark is formed by components of the locking and release mechanism for the tool chuck. In this way, the number of components that must be used on the one hand for the realization of a locking and releasing mechanism and on the other hand for the formation of a torque-adjustable coupling device can be reduced.
  • the locking and releasing mechanism comprises a manual actuating means, which may be formed in particular sleeve-shaped, which also forms the actuator for the Drehmomenteinstell issued.
  • the manual actuating means is preferably adjustable in the direction of a tool longitudinal axis.
  • a longitudinal displacement for the actuating means could be provided;
  • the manual actuating means is rotatable about the tool longitudinal axis and thereby displaced in the direction of the tool longitudinal axis.
  • the actuating means sits on a thread on a radially inner sleeve-shaped portion of the tool chuck, which surrounds the drive spindle.
  • the actuating means is on the one hand rotatably guided, and it is on the other hand achieved in accordance with the rotation targeted axial displacement.
  • the locking and release mechanism has radially displaceable locking body, in particular balls or rollers, which connect the tool chuck axially with the drive spindle.
  • the locking body are pressed into recesses in the drive spindle, so that in this way an axial coupling is achieved and the tool chuck is firmly seated on the drive shaft.
  • the aforementioned sleeve-shaped portion or other components of the locking and release mechanism are designed so that the locking body, although radial displaced, but are held captive in the tool chuck radially inwards.
  • the locking body not only serve to form an axial coupling between the tool chuck and drive spindle, but that they also cause a rotational coupling between the drive spindle and tool chuck, for example, perform a percussion drilling or a hammer drill operation or even a pure drilling operation to be able to.
  • the locking bodies preferably provided cooperate in particular with rotary driving means provided on the drive spindle. These may be indentations or elevations which bring about rotational drive in the circumferential direction.
  • the force with which the locking bodies are pressed against the drive spindle or against the rotary driving means, by the aforementioned actuating means of the locking and releasing mechanism for the tool chuck is adjustable.
  • the locking and release mechanism has a displacement body which presses the locking body against the drive spindle.
  • the actuating means is then displaced such that the displacement body is brought out of its locking body against the drive spindle pushing position or in turn is displaced by a displacement of the displacer due to an axial movement of the chuck body itself in the release position.
  • the locking and releasing mechanism comprises a spring means which acts on the displacer.
  • the displacement body has an inclined surface to the tool longitudinal axis. It can then be provided in an adjustable manner in the direction of the tool longitudinal axis adjustable and thereby act on the locking body.
  • the invention also relates to a tool chuck according to claim 21.
  • the figures show an only indicated drilling tool 2, in particular a hammer drill, with a tool chuck 4, which is tool-less (quick-change chuck) on a drive spindle 6 of the drilling tool 2 releasably fastened.
  • the tool chuck comprises a sleeve-shaped radially inner section 8, which can be pushed onto the drive spindle 6.
  • the section 8 is in the axial direction in a front receiving portion 10 for the tool, not shown.
  • openings 12 are provided which allow a partial passage of spherical detent bodies 14 radially inward, but keep this detent body 14 captive in the radial direction.
  • a likewise sleeve-shaped actuating means 16 is provided, which is arranged longitudinally displaceable in the direction of a tool longitudinal axis 18, by virtue of the fact that it has a coaxial with Tool longitudinal axis 18 extending threaded portion 20 is in rotary connection with the sleeve-shaped portion 8.
  • a spring means 22 in the form of a leaf spring 24 is provided.
  • the spring means 22 can be tensioned by an axial abutment surface 26 of the actuating means 16 in the case of axial displacement of the actuating means 16.
  • the spring presses with its abutment surface 26 axially opposite end against a displacement body 28, which acts with an oblique positive displacement surface 30 on the detent body 14 and this seeks to displace radially inward.
  • the axial displacement of the actuating means 16 is, as already mentioned, achieved by rotating the actuating means 16 about the tool longitudinal axis 18 through the threaded connection.
  • the spring means 22 When the actuating means 16 is moved in the direction of a neck 32 of the drilling tool device 2, the spring means 22 is tensioned and thus increases the pressure on the displacement body 28, which in turn forces the locking body 14 against a groove-shaped recess 34 of the drive spindle 6 with increased pressure.
  • the aforementioned components form a locking and release mechanism 36.
  • these components also form a coupling device 37 with a torque adjusting device 38, wherein the sleeve-shaped actuating means 16 forms an actuating member 40 of the torque adjusting device 38.
  • a user grips a front portion 46 and, in contrast, turns the sleeve-shaped actuating means 16 in the release direction until the locking bodies 14 can come free from the groove 34 on the outside of the drive spindle 6 in the radial direction. Then the tool chuck 4 can be removed in the tool longitudinal direction 18.
  • the assembly process takes place in the reverse direction, wherein after establishing an axial positive connection between the drive spindle 6 and tool chuck 4 (first phase of actuation) the sleeve-shaped actuating means 16 is further rotated in positions 44 (second phase of actuation), which then goes hand in hand with a torque adjustment of the above described way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Drilling And Boring (AREA)

Claims (21)

  1. Appareil-outil de forage (2), en particulier marteau foreur, comprenant un mandrin de serrage (4) pouvant être monté et enlevé sans outil sur une broche d'entraînement (6) avec un mécanisme de verrouillage et de libération (36) actionnable manuellement pour le mandrin de serrage, et un dispositif d'accouplement (37) intégré dans le mandrin de serrage, pour effectuer un accouplement rotatif entre la broche d'entraînement (6) et le mandrin de serrage (4),
    caractérisé en ce que le dispositif d'accouplement (37) est conçu comme un accouplement à surcharge et le couple, avec lequel le dispositif d'accouplement (37) se désengage, peut être prédéfini par un dispositif de réglage de couple (38).
  2. Appareil-outil de forage selon la revendication 1, caractérisé en ce que le dispositif de réglage de couple (38) est formé par des composants du mécanisme de verrouillage et de libération (36).
  3. Appareil-outil de forage selon la revendication 1 ou 2, caractérisé en ce que le mécanisme de verrouillage et de libération (36) comprend un moyen d'actionnement (16) manuel, qui forme en même temps l'organe de positionnement (40) pour le dispositif de réglage de couple (38).
  4. Appareil-outil de forage selon la revendication 3, caractérisé en ce que le moyen d'actionnement (16) est en forme de manchon.
  5. Appareil-outil de forage selon la revendication 3 ou 4, caractérisé en ce que le moyen d'actionnement (16) manuel est déplaçable en direction d'un axe longitudinal d'outil (18) .
  6. Appareil-outil de forage selon la revendication 5, caractérisé en ce que le moyen d'actionnement (16) manuel peut tourner autour de l'axe longitudinal de l'outil (18) et peut être déplacé en direction de l'axe longitudinal de l'outil (18).
  7. Appareil-outil de forage selon la revendication 6, caractérisé en ce que le moyen d'actionnement (16) est disposé au moyen d'un filetage (20) sur une partie (8) en forme de manchon et radialement intérieur du mandrin de serrage (4), lequel entoure la broche d'entraînement (6).
  8. Appareil-outil de forage selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le mécanisme de verrouillage et de libération (36) présente des corps d'encliquetage (14) déplaçables radialement, en particulier des billes ou des galets, lesquels relient le mandrin de serrage (4) axialement à la broche d'entraînement (6).
  9. Appareil-outil de forage selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en qu'une partie (8) en forme de manchon maintient les corps d'encliquetage (14) certes déplaçables radialement, mais radialement vers l'intérieur de façon invariable dans le mandrin de serrage (4).
  10. Appareil-outil de forage selon la revendication 8 ou 9, caractérisé en ce que les corps d'encliquetage (14), qui relient le mandrin de serrage (4) axialement à la broche d'entraînement (6), entraînent en même temps un accouplement de rotation entre la broche d'entraînement (6) et le mandrin de serrage (4).
  11. Appareil-outil de forage selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que des moyens d'entraînement de rotation (42) sont prévus sur la broche d'entraînement (6).
  12. Appareil-outil de forage selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la force, avec laquelle les corps d'encliquetage (14) sont appuyés contre la broche d'entraînement (6), peut être réglée par le moyen d'actionnement (16).
  13. Appareil-outil de forage selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que, lors du montage du mandrin de serrage (4) sur la broche d'entraînement (6), on obtient dans une première phase de l'actionnement un couplage axial entre le mandrin de serrage (4) et la broche d'entraînement (6) et dans une seconde phase ultérieure faisant suite de la première de l'actionnement une variation du couple de l'accouplement à surcharge.
  14. Appareil-outil de forage selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le mécanisme de verrouillage et de libération (36) présente un corps refouleur (28) qui appuie les corps d'encliquetage (14) contre la broche d'entraînement (6).
  15. Appareil-outil de forage selon la revendication 14, caractérisé en ce que le mécanisme de verrouillage et de libération (36) comprend un moyen de ressort (22) qui agit sur le corps refouleur (28).
  16. Appareil-outil de forage selon la revendication 14 ou 15, caractérisé en ce que le corps refouleur (28) présente une surface inclinée par rapport à l'axe longitudinal d'outil.
  17. Appareil-outil de forage selon la revendication 14, 15 ou 16, caractérisé en ce que le corps refouleur (28) est conçu avec une forme annulaire.
  18. Appareil-outil de forage selon l'une quelconque des revendications 14 à 17, caractérisé en ce que le corps refouleur (28) peut être déplacé en direction de l'axe longitudinal d'outil (18).
  19. Appareil-outil de forage selon l'une quelconque des revendications 15 à 18, caractérisé en ce que le moyen à ressort (22) est un ressort de pression, en particulier un ressort à lame (24), ou un ressort rotatif.
  20. Appareil-outil de forage selon l'une quelconque des revendications 15 à 19, caractérisé en ce que l'état de tension et donc la force de ressort du moyen à ressort (22) sont réglables par le biais du moyen d'actionnement (16).
  21. Mandrin de serrage (4) pouvant être monté et enlevé sans outil sur une broche d'entraînement (6) d'un appareil-outil de forage pour un appareil-outil de forage, comprenant un mécanisme de verrouillage et de libération (36) actionnable manuellement, et un dispositif d'accouplement (17) intégré dans le mandrin de serrage, pour réaliser un accouplement rotatif entre la broche d'entraînement (6) et le mandrin de serrage (4),
    caractérisé en ce que le dispositif d'accouplement (37) est conçu comme un accouplement à surcharge et le couple, avec lequel le dispositif d'accouplement (37) est désengagé, peut être prédéfini par un dispositif de réglage de couple (38).
EP05010813A 2005-05-19 2005-05-19 Outil de perçage Not-in-force EP1724068B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05010813A EP1724068B1 (fr) 2005-05-19 2005-05-19 Outil de perçage
DE502005003653T DE502005003653D1 (de) 2005-05-19 2005-05-19 Bohrwerkzeuggerät
AT05010813T ATE391585T1 (de) 2005-05-19 2005-05-19 Bohrwerkzeuggerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05010813A EP1724068B1 (fr) 2005-05-19 2005-05-19 Outil de perçage

Publications (2)

Publication Number Publication Date
EP1724068A1 EP1724068A1 (fr) 2006-11-22
EP1724068B1 true EP1724068B1 (fr) 2008-04-09

Family

ID=34936665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05010813A Not-in-force EP1724068B1 (fr) 2005-05-19 2005-05-19 Outil de perçage

Country Status (3)

Country Link
EP (1) EP1724068B1 (fr)
AT (1) ATE391585T1 (fr)
DE (1) DE502005003653D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590503A (zh) * 2020-06-05 2020-08-28 邹鑫 一种气动冲击扳手
US12030168B2 (en) 2021-08-18 2024-07-09 Milwaukee Electric Tool Corporation Clutch assembly for a power tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057928A1 (de) 2006-12-08 2008-06-12 Robert Bosch Gmbh Aufsatz für eine Handwerkzeugmaschine
DE102008002594A1 (de) * 2008-06-24 2009-12-31 Robert Bosch Gmbh Verfahren zum Betrieb einer Werkzeugmaschine mit Kupplungsvorrichtung
DE102008002593A1 (de) * 2008-06-24 2009-12-31 Robert Bosch Gmbh Werkzeugmaschine mit Kupplungsvorrichtung
CN104416543B (zh) * 2013-08-23 2016-08-10 苏州宝时得电动工具有限公司 电动工具端头连接附件和电动工具

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430530A1 (de) * 1984-08-18 1986-02-27 Helfer & Co KG, 3260 Rinteln Drehmoment-begrenzungseinrichtung
DE19829960C2 (de) * 1998-07-04 2000-06-21 Norbert Felder Drehmomentbegrenzungseinrichtung
CA2370981C (fr) * 2001-02-14 2009-12-29 Black & Decker Inc. Mandrin amovible
DE20105763U1 (de) * 2001-04-02 2001-07-19 Röhm GmbH, 89567 Sontheim Bohrfutter mit einer Schnellkupplung
DE10131220C1 (de) * 2001-06-28 2003-03-06 Metabowerke Gmbh Elektrohandwerkzeug mit einer Überlastkupplung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590503A (zh) * 2020-06-05 2020-08-28 邹鑫 一种气动冲击扳手
CN111590503B (zh) * 2020-06-05 2021-10-22 郑玲佳 一种气动冲击扳手
US12030168B2 (en) 2021-08-18 2024-07-09 Milwaukee Electric Tool Corporation Clutch assembly for a power tool

Also Published As

Publication number Publication date
ATE391585T1 (de) 2008-04-15
DE502005003653D1 (de) 2008-05-21
EP1724068A1 (fr) 2006-11-22

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