WO2003049907A1 - Handwerkzeugmaschine mit spindelstop - Google Patents
Handwerkzeugmaschine mit spindelstop Download PDFInfo
- Publication number
- WO2003049907A1 WO2003049907A1 PCT/DE2002/003358 DE0203358W WO03049907A1 WO 2003049907 A1 WO2003049907 A1 WO 2003049907A1 DE 0203358 W DE0203358 W DE 0203358W WO 03049907 A1 WO03049907 A1 WO 03049907A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- locking bolt
- tool according
- bore
- hand tool
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/38—Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/022—Spindle-locking devices, e.g. for mounting or removing the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/59—Manually releaseable latch type
- Y10T403/598—Transversely sliding pin
Definitions
- the present invention is based on a hand tool with a spindle stop according to the preamble of claim 1.
- Known hand-held machine tools with a spindle stop include angle grinders and circular saws. On these machines, the output shaft for tool change must be prevented from turning so that the respective locking screw holding the saw blade or the grinding wheel on the output shaft can be loosened.
- the spindle stop device absorbs the torque that occurs when the nut is loosened.
- Cylindrical locking bolts are usually used as the spindle stop, which are displaced in the longitudinal direction and, with their end, engage in a form-fitting manner in a part which is non-rotatably coupled to the output shaft or also directly in the output shaft.
- the locking bolts pass through the housing of the hand-held power tools in a longitudinally displaceable manner.
- the housing is subject to high wear in the passage area of the locking pin, for example by actuating the spindle stop while the output shaft is running or if the lock nut on the saw blades or grinding wheels is rusted in excessively high loosening torque. This leads to increasing play between the locking pin and the guide bush and affects the function of the spindle stop.
- the guide bush for the longitudinal guidance of the locking pin in the gear housing can loosen and widen. This allows gear grease to escape or dust to enter along the locking pin, so that the outside of the housing becomes dirty and the moving parts inside the housing are insufficiently lubricated due to lack of grease.
- the hand-held power tool Due to the design of the hand-held power tool with the features of claim 1, it can be manufactured more cost-effectively because a guide bushing can be dispensed with in the passage area of the locking bolt on the housing, the longitudinal guidance of the locking bolt being denser and more robust.
- the design of the locking pin ensures that the housing is better protected against grease leakage and against the entry of dust and dirt from the outside.
- the locking pin has a larger diameter and the through hole surrounds it directly in a leading manner, the surface pressure can be reduced and the tightness can be improved if a guide bushing is dispensed with.
- the locking pin has an O-ring in the center of an annular groove, the tightness between the through hole or sliding guide and the locking pin is ensured even when the locking pin is under maximum load when the spindle stop is actuated.
- the spindle stop is easy to assemble and disassemble and can be operated conveniently.
- the locking pin between the cap serving as a button and the part of the stepped bore with the larger diameter carries a spring, the locking pin is reliably held in its rest position and the collar-like widening in the stop position on the inner wall of the housing in its sealing position.
- the neck of the locking pin has a locking groove and the cap serving as a button has an inner locking cylinder, the assembly of the cap on the locking pin is particularly simple and robust.
- FIG. 1 shows a partial longitudinal section of a hand tool according to the invention
- FIG. 2 shows an enlarged section of a further exemplary embodiment of a hand machine tool with a spindle stop.
- FIG. 1 shows a partial longitudinal section of a handheld power tool 10 designed as an angle grinder.
- a housing 12 carries an electric motor 14 with a motor shaft 16, in its front area an angle gear 18.
- the angle gear 18 consists of a grinding spindle 20, which with its free end protrudes from the bottom of the housing 12.
- a thread which is not specified in any more detail, is arranged thereon, onto which a nut 24 can be screwed, which has a bore which has been previously Holds grinding wheel 22 placed over the free end 19 of the grinding spindle.
- the grinding wheel 22 is clamped axially between a collar 23 of the output shaft 20 and the nut 24.
- the bevel gear 18 consists of a small bevel pinion 28, which is arranged in a rotationally fixed manner at the end of the motor shaft 16, and a large bevel gear 30.
- the bevel pinion 28 engages in the bevel gear 30, which is fixed in a rotationally fixed manner on the output shaft 20.
- the bevel gear 30 has at least one recess 32 on its upper side, into which a locking pin 36, which belongs to a spindle stop 34, fits.
- the locking pin 36 is mounted in a sliding guide 35 so as to be longitudinally displaceable by passing through the wall of the housing 12 so as to protrude outwards, with a larger area projecting into the interior of the housing 12.
- the sliding guide 35 is designed as a stepped bore 37, the larger diameter of which faces outwards and the smaller diameter of which surrounds the circumference of the cylindrical locking bolt 36 in a sealing manner.
- the locking pin 36 has at its lower end 38 a pin 39 for engaging in one of the recesses 32 of the bevel gear 30.
- the pin 39 has a smaller diameter than the rest of the area of the locking pin 36.
- a radially projecting, disk-like sealing collar 40 This lies axially against the inner wall of the housing 12 and thus overlaps the mouth of the sliding guide 35 or the stepped bore 37.
- the locking pin 36 has an annular groove 41 approximately in the center, into which an O-ring 43 is inserted. This lies sealingly between the locking pin 36 and the sliding guide 35 and prevents the pin 39 from being inserted even when the pin 39 is subjected to heavy loads. reached into the recess 32 upon actuation of the spindle stop 34, lubricant escaping from the housing 12. A reliable seal between the sliding guide 35 and the locking pin 36 is thus achieved.
- the locking pin 36 merges into a neck 47 on shoulders 45.
- a cap serving as a button 51 is placed on the neck 47, which engages over the neck 47 with a locking cylinder 53 and engages in the locking groove 55 in a locking manner.
- a compression spring 49 is supported between the key 51 and the bottom of the stepped bore 37 with the larger diameter. This is pre-tensioned and tries to push the locking pin 36 outwards, so that its sealing collar 40 rests against the inner wall of the housing 12 in the rest position.
- the locking pin 36 has an actuation stroke for activating the spindle stop 34 of approximately 5 mm and then completely engages with its pin 39 in one of the recesses 32 of the bevel gear 30.
- the diameter-length ratio of the locking pin is between 1.8 and 1.3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Transmission Devices (AREA)
- Sawing (AREA)
- Portable Power Tools In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003550948A JP2005511332A (ja) | 2001-12-06 | 2002-09-10 | スピンドルロックを備えた工作機械 |
US10/450,090 US7052384B2 (en) | 2001-12-06 | 2002-09-10 | Manual machine tool with spindle stop |
DE50207890T DE50207890D1 (de) | 2001-12-06 | 2002-09-10 | Handwerkzeugmaschine mit spindelstop |
EP02774318A EP1497081B1 (de) | 2001-12-06 | 2002-09-10 | Handwerkzeugmaschine mit spindelstop |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20119835.5 | 2001-12-06 | ||
DE20119835U DE20119835U1 (de) | 2001-12-06 | 2001-12-06 | Handwerkzeugmaschine mit Spindelstop |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003049907A1 true WO2003049907A1 (de) | 2003-06-19 |
Family
ID=7964882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/003358 WO2003049907A1 (de) | 2001-12-06 | 2002-09-10 | Handwerkzeugmaschine mit spindelstop |
Country Status (6)
Country | Link |
---|---|
US (1) | US7052384B2 (de) |
EP (1) | EP1497081B1 (de) |
JP (1) | JP2005511332A (de) |
CN (1) | CN100421881C (de) |
DE (2) | DE20119835U1 (de) |
WO (1) | WO2003049907A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10360372B3 (de) * | 2003-12-22 | 2005-06-09 | Hilti Ag | Werkzeugaufnahmeanordnung |
US7179156B2 (en) * | 2005-03-23 | 2007-02-20 | Gison Machinery Co., Ltd. | Grinder with easily installable/detachable grinding disc and a linkage effect |
US8087977B2 (en) | 2005-05-13 | 2012-01-03 | Black & Decker Inc. | Angle grinder |
DE102006001986A1 (de) * | 2006-01-16 | 2007-07-19 | Robert Bosch Gmbh | Spannvorrichtung zum lösbaren Befestigen eines scheibenförmigen Werkzeugs |
SE529929C2 (sv) * | 2006-05-09 | 2008-01-08 | Atlas Copco Tools Ab | Portabelt verktyg med en frihjulslåsning av drivaxeln |
US20110039482A1 (en) * | 2009-07-29 | 2011-02-17 | Terry Timmons | Grinder |
DE102010043182A1 (de) * | 2010-10-29 | 2012-05-03 | Robert Bosch Gmbh | Tragbare Werkzeugmaschine |
JP2013169623A (ja) * | 2012-02-21 | 2013-09-02 | Makita Corp | 作業工具 |
DE102012210014A1 (de) * | 2012-06-14 | 2013-12-19 | Schaeffler Technologies AG & Co. KG | Arretiervorrichtung für ein Getriebe, insbesondere für ein Kraftfahrzeuggetriebe |
WO2014005800A1 (en) * | 2012-07-03 | 2014-01-09 | Atlas Copco Industrial Technique Ab | Power tool |
DE102014216441A1 (de) * | 2014-08-19 | 2016-02-25 | Robert Bosch Gmbh | Handwerkzeugmaschine |
KR101578730B1 (ko) * | 2014-09-22 | 2015-12-21 | 계양전기 주식회사 | 그라인더 휠 잠금장치 |
US10682714B2 (en) * | 2016-08-31 | 2020-06-16 | Robert Bosch Tool Corporation | Oscillating interface for an oscillating power tool |
US10682736B2 (en) | 2016-09-29 | 2020-06-16 | Black & Decker Inc. | Accessory clamp and spindle lock mechanism for power tool |
CN207189852U (zh) | 2017-06-05 | 2018-04-06 | 米沃奇电动工具公司 | 台锯 |
US10818450B2 (en) | 2017-06-14 | 2020-10-27 | Black & Decker Inc. | Paddle switch |
JP6852808B2 (ja) * | 2017-10-31 | 2021-03-31 | 工機ホールディングス株式会社 | 動力工具 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2816398A1 (de) * | 1978-04-15 | 1979-10-25 | Licentia Gmbh | Winkelschleifer mit einer spannvorrichtung fuer die schleifscheibe in form eines spann- und druckflansches |
DE3120899A1 (de) * | 1981-05-26 | 1982-12-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Arretiervorrichtung fuer die antriebsspindel von winkelschleifern |
EP0691180A2 (de) * | 1994-07-08 | 1996-01-10 | Metabowerke GmbH & Co. | Arretiervorrichtung für die Antriebsspindel von Handwerkzeugmaschinen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179632A (en) * | 1978-12-06 | 1979-12-18 | The Singer Company | Spindle locking mechanism for a rotary power device |
US4467896A (en) * | 1983-06-17 | 1984-08-28 | Black & Decker Inc. | Locking mechanism for a rotary power machine |
DE59200319D1 (de) * | 1991-07-05 | 1994-09-01 | Fein C & E | Tragbare Werkzeugmaschine. |
US5464365A (en) * | 1991-09-21 | 1995-11-07 | Robert Bosch Gmbh | Motor-driven hand-held machine tool |
DE20000223U1 (de) * | 2000-01-10 | 2001-05-23 | Robert Bosch Gmbh, 70469 Stuttgart | Winkelschleifer mit Elektroantrieb |
US6702090B2 (en) * | 2001-03-14 | 2004-03-09 | Milwaukee Electric Tool Corporation | Power tool and spindle lock system |
-
2001
- 2001-12-06 DE DE20119835U patent/DE20119835U1/de not_active Expired - Lifetime
-
2002
- 2002-09-10 US US10/450,090 patent/US7052384B2/en not_active Expired - Lifetime
- 2002-09-10 EP EP02774318A patent/EP1497081B1/de not_active Revoked
- 2002-09-10 JP JP2003550948A patent/JP2005511332A/ja active Pending
- 2002-09-10 CN CNB028034201A patent/CN100421881C/zh not_active Expired - Lifetime
- 2002-09-10 WO PCT/DE2002/003358 patent/WO2003049907A1/de active IP Right Grant
- 2002-09-10 DE DE50207890T patent/DE50207890D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2816398A1 (de) * | 1978-04-15 | 1979-10-25 | Licentia Gmbh | Winkelschleifer mit einer spannvorrichtung fuer die schleifscheibe in form eines spann- und druckflansches |
DE3120899A1 (de) * | 1981-05-26 | 1982-12-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Arretiervorrichtung fuer die antriebsspindel von winkelschleifern |
EP0691180A2 (de) * | 1994-07-08 | 1996-01-10 | Metabowerke GmbH & Co. | Arretiervorrichtung für die Antriebsspindel von Handwerkzeugmaschinen |
Also Published As
Publication number | Publication date |
---|---|
CN1484570A (zh) | 2004-03-24 |
DE50207890D1 (de) | 2006-09-28 |
EP1497081B1 (de) | 2006-08-16 |
JP2005511332A (ja) | 2005-04-28 |
US7052384B2 (en) | 2006-05-30 |
US20040069513A1 (en) | 2004-04-15 |
CN100421881C (zh) | 2008-10-01 |
EP1497081A1 (de) | 2005-01-19 |
DE20119835U1 (de) | 2003-04-10 |
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