EP1157790A1 - Werkzeugaufnahme für einen Bohrmeissel - Google Patents
Werkzeugaufnahme für einen Bohrmeissel Download PDFInfo
- Publication number
- EP1157790A1 EP1157790A1 EP01810479A EP01810479A EP1157790A1 EP 1157790 A1 EP1157790 A1 EP 1157790A1 EP 01810479 A EP01810479 A EP 01810479A EP 01810479 A EP01810479 A EP 01810479A EP 1157790 A1 EP1157790 A1 EP 1157790A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- radially
- control sleeve
- tool holder
- resilient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- B25D2217/0038—Locking members of special shape
-
- 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
- Y10T279/17666—Radially reciprocating jaws
- Y10T279/17692—Moving-cam actuator
- Y10T279/17743—Reciprocating cam sleeve
-
- 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
- Y10T279/17786—Spring
Definitions
- the invention advantageously designates a tool holder for a drill bit connectable with an at least partially striking hand tool device, such as one Hammer drill or chisel hammer.
- This invention contemplates tool holders of at least partially striking Hand tools. That for the appropriate use in such a tool holder the tool introduced into the hand tool becomes non-rotatable and limited axially movably mounted. Radially movable engagement elements are used the tool holder in radial recesses in the clamping area of the shaft of the tool and limit the axial mobility to one of the axial Length of the recesses specified area. Via form-fitting driving grooves The torque is transmitted in the clamping area of the shaft. The blow of the Hand tool is done directly on the axial end face of the tool and therefore not on the tool holder.
- a ball engages in the tool holder as a locking means an axially limited, radial recess of the rotationally locked tool a, the ball connected by a one-sided, axially positive constraint with an axial relative movement along a chamfer is radially outward and thus the axial mobility for removing the tool is free.
- the Insert and to remove the tool an axially movable outer sleeve against the Preload force of a retaining spring shifted in the direction of the hand tool.
- Disadvantageous is the stable state of the tool holder that only develops in the engaged position.
- US5558478 is a prismatic, radially movable Engagement element itself via a leaf spring against an axially between the engagement position and the release position movable, resiliently biased and axially on one side with the Outer sleeve radially displaceable in the direction of the hand tool control sleeve biased.
- a disadvantage is the stable state that only develops in the engagement position the tool holder.
- the tool receptacle essentially has a non-rotatable, non-rotatable one Driving elements and limited axially movable over finite along the tool axis radial recesses of the clamping area of the shank tool radially movable engaging elements that engage in a form-fitting manner in the radial recesses and via a control sleeve that can be actuated from the outside and is axially resiliently displaceable are solvable.
- a between the control sleeve and the clamping area of the Shaft of the tool arranged resilient holding element in the form of a radially resilient Leaf spring or a radially spring-mounted ball stops against the holding spring force of the tool inserted via a radially movable and in the control sleeve engaging locking means the control sleeve in the release position.
- resilient holding element in the form of a radially resilient Leaf spring or a radially spring-mounted ball stops against the holding spring force of the tool inserted via a radially movable and in the control sleeve engaging locking means the control sleeve in the release position.
- the control sleeve is advantageously flange-shaped, the tool facing part is surrounded by a front sleeve radially coaxially and the one radial smooth gradation adjacent, facing the hand tool, part with a Radially larger diameter can be actuated from the outside, in particular directly by hand Is axially displaceable in the direction of the hand tool.
- control sleeve forms a radially recessed web as a stop for one Locking spring, which is positioned against a hand tool device axial stop is prestressed.
- the locking elements are also advantageous additionally at other points on the tool holder in a radially positive manner.
- the locking elements can be oriented with parts of them in the direction of the hand tool End faces form a one-sided axial constraint on the control sleeve, advantageous on the radially protruding web.
- the four locking elements advantageously engage via projections oriented radially outwards in recesses of the control sleeve and are thus axially movable with positive this connected.
- the holding element is advantageous as an axially projecting radially resilient leaf spring, which advantageously has an at least partially circumferential has circumferential fastening part.
- the holding element has a radially inner one Contact point to the clamping area of the shaft of an inserted tool Control of the holding element and a radially outer locking means for holding the control sleeve on.
- the locking means radially movable on the holding element is advantageous as an angled on both sides chamfered nose at the end of the axially protruding, radially resilient part of the leaf spring educated.
- the locking means In conjunction with two associated chamfers on the inner end of the radial protruding web of the control sleeve can be caused by an axial displacement of the Control sleeve against the bias of the holding element, the locking means radially be moved.
- the radially recessed part of the leaf spring is advantageously folded over in the radial direction executed, whereby the holding spring travel of the locking means is increased.
- the holding element is a spring-mounted ball formed by a circumferentially and axially and limited radially movable leading opening of the tool holder in contact with the clamping area of the shank a tool inserted into the tool holder can serve.
- the radial to outer dome of the spring-loaded ball forms a bevel on both sides, the a radially resilient, chamfered radially inside on both sides as the associated retaining spring Is assigned axially movable sleeve spring, the sleeve spring advantageously with the Control sleeve is connected.
- Fig. 1a or Fig. 1b cut offset by 90 ° has a tool holder 1 for a rotationally fixed over rotationally positive driving elements 2 and limited axially movable over finite radial recesses 3 of the clamping area along the tool axis of the shank received tool 4 radially movable engagement elements 5, the positively engage in the radial recesses 3 and directly from Control sleeve 6 which can be actuated by hand and axially resiliently biased are solvable.
- the flange-shaped control sleeve 6 is in the engaged position 7.
- a resilient holding element 8 is arranged in the form of a radially resilient leaf spring which, when the tool 4 is inserted against the holding spring force of the holding element 8 via a radially movable and in the Control sleeve 6 engaging locking means 9, the control sleeve 6 in the from the engaged position 7 axially offset release position 10 holds.
- the radially movable engagement elements 5 are movable axially positive in recesses 11 of the control sleeve 6 engaging extensions 12 of the engagement elements 5 connected and were with this axially displaced from the engagement position 7.
- a connected to the control sleeve 6, radially protruding web 13 as a stop for a prestressed locking spring 14 is held in the release position 10 by the latching means 9.
- FIG. 4a or FIG. 4b cut through 90 ° offset, the locking spring 14 after removal of the tool 4, the control sleeve 6 into the locking position 7 moved back.
- Fig. 5a or Fig. 5b cut by 90 ° is directly at the tool holder by the tool 4 to be picked up via the locking elements 5 exerted on the control sleeve 6 axial constraint of the locking position 7 moved in the direction of the release position 10 without reaching it.
- the holding element 8 is as Ball formed by a circumferential and axially and limited radially Movable leading opening of the tool holder 1 in contact with the clamping area of the shaft of a tool 4 inserted into the tool holder, the radially outwardly projecting dome 15 of the ball forms a bevel on both sides, the one radially resilient, radially internally chamfered sleeve spring 16 axially movable is, the sleeve spring is connected to the control sleeve 6.
- the control sleeve 6 located in the release position 10 in the direction of the locking position 7 inhibited.
- the holding element 8 is an axially recessed, radially resilient one Leaf spring formed, which has an at least partially circumferential peripheral fastening part 17, a radially inner contact point 18 to the clamping area of the shaft introduced tool for controlling the control sleeve and a radially outer Has locking means 9 for holding the control sleeve.
- Radially on the holding element 8 movable locking means 9 is an angled nose chamfered on both sides at the end of the axially projecting, radially resilient part of the leaf spring. The radially recessed part the leaf spring is folded over in the radial direction.
- control sleeve 6 is connected to the retaining spring sleeve 16 in variant II, which has bilateral chamfers 19 in the region of the engagement of the spherical cap.
Abstract
Description
Claims (10)
- Werkzeugaufnahme für ein begrenzt axial beweglich über längs der Werkzeugachse endliche radiale Aussparungen (3) aufnehmbares Werkzeug (4) mit radial beweglichen Eingriffselementen (5), die formschlüssig in die radialen Aussparungen (3) eingreifen und über eine von Aussen betätigbare, axial über eine Verriegelungsfeder (14) federnd vorgespannt verschiebbare, Steuerungshülse (6) lösbar sind, wobei zwischen der Steuerungshülse (6) und dem Einspannbereich des Schafts des Werkzeugs (4) ein federndes Halteelement (8) angeordnet ist, dadurch gekennzeichnet, dass in einer Freigabeposition (10) das durch das eingeführte Werkzeug (4) verspannte federnde Halteelement (8) eine Verschiebung der Steuerhülse (6) in Richtung einer Verriegelungsposition (7) über ein Rastmittel (9) hinweg verhindert.
- Werkzeugaufnahme nach Anspruch 1, dadurch gekennzeichnet, dass nach Entnahme des Werkzeugs (4) die Steuerhülse (6) in Richtung einer Verriegelungsposition (7) verschiebbar ist.
- Werkzeugaufnahme nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass die Steuerungshülse (6) flanschförmig ausgebildet unmittelbar von Hand in Richtung Handwerkzeuggerät axial verschiebbar ist.
- Werkzeugaufnahme nach Anspruch 3, dadurch gekennzeichnet, dass die Steuerungshülse (6) als Anschlag für eine Verriegelungsfeder (14) im Inneren einen radial auskargenden Steg (13) ausbildet.
- Werkzeugaufnahme nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Vierriegelungselemente (5) über radial nach Aussen orientierte Fortsätze (12) in Ausnehmungen (11) der Steuerungshülse (6) eingreifen.
- Werkzeugaufnahme nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das federnde Halteelement (8) in Form einer radial federnden Blattfeder ausgeführt ist.
- Werkzeugaufnahme nach Anspruch 6, dadurch gekennzeichnet, dass das federnde Halteelement (8) in Form einer radial federnden Blattfeder zur Steuerung einen radial inneren Kontaktpunkt (18) zum Einspannbereich des Schaftes des eingeführten Werkzeugs (4), ein radial äusseres Rastmittel (9) zum Halten der Steuerungshülse (6) und optional einen zumindest teilweise umfänglich umlaufenden Befestigungsteil (17) aufweist.
- Werkzeugaufnahme nach Anspruch 7, dadurch gekennzeichnet, dass das Rastmittel (9) als abgewinkelte beidseitig angefaste Nase am Ende eines axial auskargenden, optional in radialer Richtung umgefalteten, radial federnden Teils der Blattfeder ausgebildet ist.
- Werkzeugaufnahme nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das federnde Halteelement (8) in Form einer radial federnd gelagerten Kugel mit einer radial nach aussen ragenden Kalotte (15) ausgeführt ist.
- Werkzeugaufnahme nach Anspruch 9, dadurch gekennzeichnet, dass die dem federnden Halteelement (8) in Form einer radial federnd gelagerten Kugel zugehörige Haltefeder eine radial federnde, optional radial innen beidseitig angefaste, Hülsenfeder (16) axial beweglich zugeordnet ist, wobei optional die Hülsenfeder (16) mit der Steuerungshülse (6) verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10026021A DE10026021A1 (de) | 2000-05-25 | 2000-05-25 | Werkzeugaufnahme für einen Bohrmeissel |
DE10026021 | 2000-05-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1157790A1 true EP1157790A1 (de) | 2001-11-28 |
EP1157790B1 EP1157790B1 (de) | 2008-01-02 |
Family
ID=7643595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01810479A Expired - Lifetime EP1157790B1 (de) | 2000-05-25 | 2001-05-15 | Werkzeugaufnahme für einen Bohrmeissel |
Country Status (5)
Country | Link |
---|---|
US (1) | US6543789B2 (de) |
EP (1) | EP1157790B1 (de) |
JP (1) | JP4758565B2 (de) |
CN (1) | CN1189291C (de) |
DE (2) | DE10026021A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1293305A1 (de) | 2001-08-31 | 2003-03-19 | HILTI Aktiengesellschaft | Werkzeugaufnahme für schlagendes Handwerkzeuggerät |
EP1747853A2 (de) * | 2005-07-28 | 2007-01-31 | HILTI Aktiengesellschaft | Schlagwerkzeugaufnahme |
EP1666212A3 (de) * | 2002-10-18 | 2009-08-05 | BLACK & DECKER INC. | Werkzeughalter für Schlaghammer |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10043416A1 (de) * | 2000-09-04 | 2002-03-14 | Hilti Ag | Schlagendes Handwerkzeuggerät mit Werkzeugaufnahme |
DE10207152B4 (de) * | 2002-02-20 | 2015-04-16 | Röhm Gmbh | Bohrvorrichtung |
US7527272B2 (en) | 2002-09-18 | 2009-05-05 | Robert Bosch Gmbh | Chuck |
DE10243290B4 (de) * | 2002-09-18 | 2007-04-05 | Robert Bosch Gmbh | Werkzeugaufnahme |
US7232008B2 (en) * | 2003-10-08 | 2007-06-19 | Pride Mobility Products Corporation | Active anti-tip wheels for power wheelchair |
DE102004042735A1 (de) * | 2004-09-03 | 2006-03-09 | Robert Bosch Gmbh | Werkzeugaufnahme, Adapter und System mit einer Werkzeugaufnahme und einem Adapter |
US7243923B2 (en) * | 2005-02-09 | 2007-07-17 | Black & Decker Inc. | Centering drill chuck |
EP1733851B1 (de) * | 2005-06-15 | 2013-01-02 | Caterpillar Inc. | Vorrichtung und Verfahren zur Aufnahme eines Werkzeugs |
EP1733849A1 (de) * | 2005-06-15 | 2006-12-20 | Caterpillar, Inc. | Schlagwerkzeugzusammenbau mit zweiteiligem Gehäuse |
DE102005000168A1 (de) * | 2005-11-25 | 2007-05-31 | Hilti Ag | Werkzeugaufnahme |
CN2858200Y (zh) * | 2005-12-22 | 2007-01-17 | 特力实业有限公司 | 一种电动工具 |
US8328477B2 (en) | 2006-03-02 | 2012-12-11 | Milwaukee Electric Tool Corporation | Cutting tool |
CN101096056B (zh) * | 2006-03-02 | 2013-06-19 | 密尔沃基电动工具公司 | 切削刀具 |
US7810817B1 (en) | 2006-11-20 | 2010-10-12 | Bradshaw Medical, Inc. | Holder for replaceable tools |
US8608414B2 (en) | 2009-06-01 | 2013-12-17 | Robert Bosch Gmbh | Bi-directional quick change tool-less lever and wedge actuated collet chuck, system and/or method for using the same |
DE102009028890B4 (de) * | 2009-08-26 | 2014-11-20 | Hilti Aktiengesellschaft | Werkzeugaufnahme |
DE102009057200A1 (de) * | 2009-11-26 | 2011-06-01 | C. & E. Fein Gmbh | Vorsatz für eine Werkzeugmaschine |
US9662778B2 (en) | 2012-02-10 | 2017-05-30 | Milwaukee Electric Tool Corporation | Bit retention assembly for rotary hammer |
US9517510B2 (en) * | 2012-06-05 | 2016-12-13 | Robert Bosch Tool Corporation | Quick change power tool chuck |
US9500038B2 (en) | 2013-02-01 | 2016-11-22 | Milwaukee Electric Tool Corporation | Auger bit with replaceable cutting bit |
DE102019123995A1 (de) * | 2019-09-06 | 2021-03-11 | Drebo Werkzeugfabrik Gmbh | Saugbajonet |
DE102021203063A1 (de) * | 2021-03-26 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine mit einer Verriegelungseinrichtung |
DE102021203064A1 (de) * | 2021-03-26 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine mit einer Verriegelungseinrichtung |
US20220361934A1 (en) * | 2021-05-13 | 2022-11-17 | DePuy Synthes Products, Inc. | Surgical impacting tool interfaces |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2171340A (en) * | 1985-02-21 | 1986-08-28 | Bosch Gmbh Robert | Toolholder |
US5709391A (en) * | 1995-09-06 | 1998-01-20 | Makita Corporation | Bit mounting device |
GB2338672A (en) * | 1998-06-18 | 1999-12-29 | Bosch Gmbh Robert | Toolholder |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3788658A (en) * | 1972-08-14 | 1974-01-29 | Erickson Tool Co | Instant change tool holder |
US5398946A (en) * | 1993-12-29 | 1995-03-21 | Poly-Tech Industries | Chuck having one-step lock and release |
DE4401663A1 (de) * | 1994-01-21 | 1995-07-27 | Bosch Gmbh Robert | Werkzeughalter |
DE19834503A1 (de) * | 1998-07-31 | 2000-02-03 | Hilti Ag | Werkzeughalter für Bohr- und Meisselgeräte |
-
2000
- 2000-05-25 DE DE10026021A patent/DE10026021A1/de not_active Withdrawn
-
2001
- 2001-05-15 DE DE50113422T patent/DE50113422D1/de not_active Expired - Lifetime
- 2001-05-15 EP EP01810479A patent/EP1157790B1/de not_active Expired - Lifetime
- 2001-05-17 US US09/859,870 patent/US6543789B2/en not_active Expired - Lifetime
- 2001-05-21 CN CN01119529.0A patent/CN1189291C/zh not_active Expired - Fee Related
- 2001-05-24 JP JP2001155296A patent/JP4758565B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2171340A (en) * | 1985-02-21 | 1986-08-28 | Bosch Gmbh Robert | Toolholder |
US5709391A (en) * | 1995-09-06 | 1998-01-20 | Makita Corporation | Bit mounting device |
GB2338672A (en) * | 1998-06-18 | 1999-12-29 | Bosch Gmbh Robert | Toolholder |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1293305A1 (de) | 2001-08-31 | 2003-03-19 | HILTI Aktiengesellschaft | Werkzeugaufnahme für schlagendes Handwerkzeuggerät |
EP1666212A3 (de) * | 2002-10-18 | 2009-08-05 | BLACK & DECKER INC. | Werkzeughalter für Schlaghammer |
EP2239101A1 (de) * | 2002-10-18 | 2010-10-13 | Black & Decker Inc. | Werkzeughalter für Schlaghammer |
EP1747853A2 (de) * | 2005-07-28 | 2007-01-31 | HILTI Aktiengesellschaft | Schlagwerkzeugaufnahme |
EP1747853A3 (de) * | 2005-07-28 | 2009-08-12 | HILTI Aktiengesellschaft | Schlagwerkzeugaufnahme |
Also Published As
Publication number | Publication date |
---|---|
CN1325783A (zh) | 2001-12-12 |
DE50113422D1 (de) | 2008-02-14 |
US20020067008A1 (en) | 2002-06-06 |
DE10026021A1 (de) | 2001-11-29 |
JP4758565B2 (ja) | 2011-08-31 |
JP2002011677A (ja) | 2002-01-15 |
EP1157790B1 (de) | 2008-01-02 |
US6543789B2 (en) | 2003-04-08 |
CN1189291C (zh) | 2005-02-16 |
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