EP0548008A1 - Outil pour forage à percussion et ciselage et mandrin pour cet outil - Google Patents
Outil pour forage à percussion et ciselage et mandrin pour cet outil Download PDFInfo
- Publication number
- EP0548008A1 EP0548008A1 EP92810930A EP92810930A EP0548008A1 EP 0548008 A1 EP0548008 A1 EP 0548008A1 EP 92810930 A EP92810930 A EP 92810930A EP 92810930 A EP92810930 A EP 92810930A EP 0548008 A1 EP0548008 A1 EP 0548008A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- locking
- rotary driving
- groove
- rotary
- 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
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
-
- 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
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/94—Tool-support
- Y10T408/95—Tool-support with tool-retaining means
- Y10T408/953—Clamping jaws
Definitions
- the invention relates to a tool which has a clamping shank for insertion into a tool holder of a hand-held power tool intended for chiseling and / or drilling and / or impact drilling, which is provided with at least two rotary driving grooves, which are in no case diametrically opposite one another, for axial insertion of rotary drivers of the tool holder open into the free end face of the clamping shank, and with at least one locking groove which is closed for receiving at least one locking body of the tool holder at least at its end adjacent to the end face of the clamping shank to limit the axial movement of the tool.
- Tools of this type are known for example from DE-PS 2551125 and DE-PS 3716915. These tools are designed so that they can only be inserted into a tool holder in a very specific angular position. Tools according to DE-PS 3716915 have two diametrically opposite locking grooves, which are closed at both ends. This training is important because tools according to this patent should also fit into the tool holder of the best-selling heavy hammer drill. In this rotary hammer machine, both the transmission of the torque and the locking are carried out by the two diametrically opposite locking grooves.
- the invention is therefore based on the object to design tools according to the type of the main claim so that the wear on the tool holder and tool shank is significantly reduced and suitably trained tools still fit in the most common heavy hammer drill machine and the work area of hand tool and tool up expand.
- a further rotary driving groove is at least approximately diametrically opposite a locking groove.
- This design of an additional rotary driving groove significantly reduces wear, since the contact area between the additional rotating driving groove and the associated rotating driver is due to the much greater axial extension of both in comparison to a locking body which only allows approx.
- Has 50% of the length of the locking groove can be several times larger. This effect is intensified because, due to the necessary radial mobility of the locking body, in particular with increasing wear in the tool holder, changes in the position of the locking body occur during use, so that only a line contact exists between the locking groove and locking body.
- the rotary driving grooves with flat flanks there is extensive contact with the associated rotary driver.
- the rotary driving groove opposite the locking groove has a cross-sectional shape which is shaped to receive a further locking body, which is mirror image of the locking body engaging in the locking groove and with it has the same cross-sectional area.
- This cross-sectional shape can also be in the form of a circular arc.
- the invention also relates to a tool holder for impacting and / or drilling tools with at least two, in no case diametrically opposite, rotary drivers, which are used for the axial insertion into rotary driving grooves of tools are provided, and with at least one locking body, which is provided for radial insertion into a locking groove of the tool.
- the invention is also based on the object of designing the tool holder in such a way that, in cooperation with the tools according to the invention, the wear on the tool shank and tool holder is significantly reduced and the working range of the hand tool and tool is expanded upwards.
- a tool holder in which, in addition to the features of the related tool holder, a further rotary driver has a locking body little is approximately diametrically opposed and preferably has flat flanks.
- clamping shaft 11 has three non-diametrically opposite rotary driving grooves 13, 14, 16, the locking groove 12 and the rotating driving groove 15 opposite this.
- the rotary driving grooves 13, 14, 15, 16 have the flat flanks 20 and end in the free end surface 17 of the clamping shaft 11.
- the locking body 18 engaging in the locking groove 12 is indicated by dashed lines, as is the mirror image opposite this and engaging in the rotating driving groove 15 Locking body 19.
- the in Fig. 1, indicated by dashed lines, locking bodies 18, 19 show the small length of the axial contact surface between tool and locking body.
- FIG. 3 shows the tool holder 21 of a rotary hammer in cross section. It has the rotary drivers 23, 24, 25, 26 adapted to the rotary driving grooves 13, 14, 15, 16 of the tool.
- the locking body 28 engages in the locking groove 12 of the tool, which is guided in the recess 27 of the tool holder 21 and is supported against the locking ring 22.
- the tools and tool holders according to the invention solve the task of the invention in a surprisingly simple and, as tests in which the wear has been halved, have shown in a convincing manner, with no additional costs being incurred during production.
- the costs for the production of the tool holder are even reduced since all the rotary drivers, including the rotary driver 25, are introduced together by reshaping and, since only one locking body is used, the costs for the recess 27 and the locking body 28 are only half.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Percussive Tools And Related Accessories (AREA)
- Gripping On Spindles (AREA)
- Drilling And Boring (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4141846 | 1991-12-18 | ||
DE4141846A DE4141846A1 (de) | 1991-12-18 | 1991-12-18 | Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0548008A1 true EP0548008A1 (fr) | 1993-06-23 |
EP0548008B1 EP0548008B1 (fr) | 1996-02-21 |
Family
ID=6447418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92810930A Expired - Lifetime EP0548008B1 (fr) | 1991-12-18 | 1992-11-30 | Outil pour forage à percussion et ciselage et mandrin pour cet outil |
Country Status (7)
Country | Link |
---|---|
US (1) | US5324145A (fr) |
EP (1) | EP0548008B1 (fr) |
JP (1) | JPH05253863A (fr) |
KR (1) | KR100201712B1 (fr) |
DE (2) | DE4141846A1 (fr) |
DK (1) | DK0548008T3 (fr) |
FI (1) | FI97029C (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0657253A2 (fr) * | 1993-12-09 | 1995-06-14 | HILTI Aktiengesellschaft | Outil et mandrin pour des outil à main |
EP2011607A1 (fr) * | 2007-07-02 | 2009-01-07 | HILTI Aktiengesellschaft | Agitateur doté d'une extrémité enfichable |
US8109348B2 (en) * | 2006-10-20 | 2012-02-07 | Drillroc Pneumatic Pty Ltd | Down-the-hole hammer drill |
US9068399B2 (en) | 2006-10-20 | 2015-06-30 | Drillroc Pneumatic Pty Ltd | Down-the-hole hammer drill |
AP3638A (en) * | 2012-01-17 | 2016-03-13 | Drillroc Pneumatic Pty Ltd | Down-hole hammer drill |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4132023A1 (de) * | 1991-09-26 | 1993-04-01 | Bosch Gmbh Robert | Einrichtung an handwerkzeugmaschinen |
DE4313578A1 (de) * | 1993-03-06 | 1994-09-08 | Hilti Ag | Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte |
DE4313580A1 (de) * | 1993-04-26 | 1994-10-27 | Hilti Ag | Werkzeugeinspannschaft |
DE4338953A1 (de) * | 1993-11-15 | 1995-05-18 | Krupp Widia Gmbh | Spannvorrichtung zur Verbindung eines Werkzeugkopfes und eines Werkzeughalters an Werkzeugmaschinen |
DE4341971A1 (de) * | 1993-12-09 | 1995-06-14 | Hilti Ag | Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte |
CZ287520B6 (en) * | 1994-01-14 | 2000-12-13 | Bosch Gmbh Robert | Mechanism of hand-held cutting device for rotary driving of impact and/or drilling tools, a tool and a tool holder |
DE4400969A1 (de) * | 1994-01-14 | 1995-07-20 | Bosch Gmbh Robert | Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen |
DE19952225A1 (de) * | 1999-10-29 | 2001-05-03 | Hilti Ag | Bohr- und/oder Meisselwerkzeug |
DE10357380A1 (de) * | 2003-12-05 | 2005-06-30 | Hilti Ag | Einsteckende für ein drehendes und/oder schlagendes Werkzeug |
JPWO2011099100A1 (ja) * | 2010-02-15 | 2013-06-13 | 株式会社ミヤナガ | 回転工具の着脱装置と該回転工具 |
DE102010002167A1 (de) * | 2010-02-22 | 2011-08-25 | Hilti Aktiengesellschaft | Herstellungsverfahren für ein Einsteckende |
US20220219306A1 (en) * | 2021-01-14 | 2022-07-14 | Milwaukee Electric Tool Corporation | Tool bit |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2331410A1 (fr) * | 1975-11-14 | 1977-06-10 | Bosch Gmbh Robert | Dispositif pour la transmission de couples de rotation |
GB2158376A (en) * | 1984-05-08 | 1985-11-13 | Roehm Guenter H | Drilling chuck for a tool for hammer drilling |
WO1988009245A1 (fr) * | 1987-05-20 | 1988-12-01 | Robert Bosch Gmbh | Dispositif de transmission de couple pour outillage electrique a main |
EP0433876A1 (fr) * | 1989-12-16 | 1991-06-26 | HILTI Aktiengesellschaft | Outil pour le forage à percussion et porte-outil pour outil de forage à percussion |
WO1992006823A1 (fr) * | 1990-10-16 | 1992-04-30 | Robert Bosch Gmbh | Dispositif pour machines-outils manuelles |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2811328C2 (de) * | 1978-03-16 | 1986-09-25 | Robert Bosch Gmbh, 7000 Stuttgart | Bohrfutter |
DE3824894A1 (de) * | 1988-07-22 | 1990-01-25 | Bosch Gmbh Robert | Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung |
FR2635039B1 (fr) * | 1988-08-05 | 1990-11-02 | Prospection & Inventions | Foret comprenant une queue avec des rainures |
DE4032739A1 (de) * | 1990-10-16 | 1992-04-23 | Bosch Gmbh Robert | Werkzeug |
DE4105414A1 (de) * | 1991-02-21 | 1992-08-27 | Hilti Ag | Werkzeug und werkzeughalter fuer handwerkzeuggeraete |
-
1991
- 1991-12-18 DE DE4141846A patent/DE4141846A1/de not_active Withdrawn
-
1992
- 1992-11-30 EP EP92810930A patent/EP0548008B1/fr not_active Expired - Lifetime
- 1992-11-30 DK DK92810930.5T patent/DK0548008T3/da active
- 1992-11-30 DE DE59205399T patent/DE59205399D1/de not_active Expired - Lifetime
- 1992-12-08 FI FI925566A patent/FI97029C/fi active
- 1992-12-16 KR KR1019920024410A patent/KR100201712B1/ko not_active IP Right Cessation
- 1992-12-17 JP JP4337269A patent/JPH05253863A/ja active Pending
- 1992-12-18 US US07/995,410 patent/US5324145A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2331410A1 (fr) * | 1975-11-14 | 1977-06-10 | Bosch Gmbh Robert | Dispositif pour la transmission de couples de rotation |
GB2158376A (en) * | 1984-05-08 | 1985-11-13 | Roehm Guenter H | Drilling chuck for a tool for hammer drilling |
WO1988009245A1 (fr) * | 1987-05-20 | 1988-12-01 | Robert Bosch Gmbh | Dispositif de transmission de couple pour outillage electrique a main |
EP0433876A1 (fr) * | 1989-12-16 | 1991-06-26 | HILTI Aktiengesellschaft | Outil pour le forage à percussion et porte-outil pour outil de forage à percussion |
WO1992006823A1 (fr) * | 1990-10-16 | 1992-04-30 | Robert Bosch Gmbh | Dispositif pour machines-outils manuelles |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0657253A2 (fr) * | 1993-12-09 | 1995-06-14 | HILTI Aktiengesellschaft | Outil et mandrin pour des outil à main |
EP0657253A3 (fr) * | 1993-12-09 | 1995-09-06 | Hilti Ag | Outil et mandrin pour des outil à main. |
CN1070756C (zh) * | 1993-12-09 | 2001-09-12 | 希尔蒂股份公司 | 手动工具器械上的工具及工具夹套 |
US8109348B2 (en) * | 2006-10-20 | 2012-02-07 | Drillroc Pneumatic Pty Ltd | Down-the-hole hammer drill |
US9068399B2 (en) | 2006-10-20 | 2015-06-30 | Drillroc Pneumatic Pty Ltd | Down-the-hole hammer drill |
EP2011607A1 (fr) * | 2007-07-02 | 2009-01-07 | HILTI Aktiengesellschaft | Agitateur doté d'une extrémité enfichable |
AP3638A (en) * | 2012-01-17 | 2016-03-13 | Drillroc Pneumatic Pty Ltd | Down-hole hammer drill |
Also Published As
Publication number | Publication date |
---|---|
FI925566A0 (fi) | 1992-12-08 |
FI925566A (fi) | 1993-06-19 |
DE59205399D1 (de) | 1996-03-28 |
FI97029C (fi) | 1996-10-10 |
JPH05253863A (ja) | 1993-10-05 |
US5324145A (en) | 1994-06-28 |
DK0548008T3 (da) | 1996-05-20 |
EP0548008B1 (fr) | 1996-02-21 |
KR100201712B1 (ko) | 1999-06-15 |
DE4141846A1 (de) | 1993-06-24 |
KR930012210A (ko) | 1993-07-20 |
FI97029B (fi) | 1996-06-28 |
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