EP0605602A1 - Dispositif monte sur des outils a main mecaniques. - Google Patents
Dispositif monte sur des outils a main mecaniques.Info
- Publication number
- EP0605602A1 EP0605602A1 EP92920854A EP92920854A EP0605602A1 EP 0605602 A1 EP0605602 A1 EP 0605602A1 EP 92920854 A EP92920854 A EP 92920854A EP 92920854 A EP92920854 A EP 92920854A EP 0605602 A1 EP0605602 A1 EP 0605602A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- grooves
- tool holder
- rotary
- receiving bore
- 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
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
- B25D2217/0003—Details of shafts of percussive tool bits
-
- 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
- B25D2217/0042—Ball-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
- 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
Definitions
- the invention is based on a device.
- Hand tool machines according to the preamble of claim 1.
- DE-U 85 10 262 discloses a tool holder designed as a drill chuck, the rotary driving elements of which are formed by a plurality of gripping segments lying one above the other.
- the gripping segments have an approximately trapezoidal or circular cross-sectional shape, are curved in profile and merge into curves.
- the side surfaces of the rotary drivers are therefore uneven ... and are unfavorable for the transmission of a torque relative to the direction of force application.
- the device according to the invention with the characterizing features of claim 1 has the advantage that the rotary drivers are optimally aligned to the requirements for effective torque transmission and also offer the best possible guidance and centering of the drilling tool.
- the device has the further advantage that, despite the possibility of clamping tool shafts of different thicknesses, the weakening of the tool shank by the rotary drivers is kept as small as possible.
- Advantageous further developments and improvements of the device specified in claim 1 are possible through the measures listed in the dependent claims. It is particularly advantageous if the rotary drivers have guide sections which are at a distance of 4, 5 or approximately 6 mm from the central axis of the receiving bore. This means that tools with 8, 10 or 12 mm shanks can be optimally guided, which ensures excellent concentricity.
- the arrangement of locking bodies in the area of the rotary drivers is also particularly advantageous.
- a weakening of the tool shank is kept within narrow limits.
- Elastic, resiliently mounted locking bodies automatically withdraw when a tool is inserted and subsequently snap into the axial locking grooves of the tool. This increases the ease of use.
- the axial locking bodies engage in the receiving bore to different extents depending on the shank diameter of the tool used, this can advantageously be used to scan the diameter of the drilling tool and the speed can be set accordingly. It is particularly advantageous here that the scanning takes place purely mechanically and the information obtained is also mechanically passed on via a sleeve, so that the scanning device is insensitive to contamination and remains functional even in rough construction site operation.
- Tools according to claims 7 ff have the particular advantage that not a unitary shank is required, but depending on the diameter of the tool head, thinner and thicker tool shanks can be inserted into the same tool holder. This is achieved by means of stepped rotary grooves, the more steps the larger the diameter difference of the tools. drawing
- Figure 1 shows a device on hand-held power tools in cross-section with an inserted tool shaft of small diameter.
- Figures 2 and 3 show the same device with different sized tool shanks.
- FIG. 4 shows a device with two rotary drivers in a further exemplary embodiment.
- FIG. 5 shows a longitudinal section through a tool holder according to FIG. 2.
- the device according to the invention essentially consists of a tool holder 10 and a tool 22 held therein.
- a basic body 11 with a receiving bore 12 is shown in section of the tool holder 10.
- three uniformly designed immovable rotary drivers 14 protrude into the receiving bore 12.
- the rotary drivers 14 are of stepped design, with plane flank portions 16 which run radially with respect to a central axis 15 of the tool holder 10 alternating with guide sections 17 which are cylindrical in the circumferential direction and have an antelike shape.
- the receiving bore 12 itself also acts as a guide section.
- the stepped design of the rotary driver 14 is selected so that the guide sections 17 are located coaxially to the central axis 15 on a cylinder jacket surface with a diameter of 6, 8 and 10 mm.
- the receiving bore 12 has a diameter of 12 mm.
- the rotary drivers 14 extend along the receiving bore 12 over a certain distance. Approximately in the middle of this distance, the rotary drivers 14 are penetrated by an opening 19 which if the base body 11 penetrates. Locking bodies 20 are inserted into the openings 19, which project beyond the projection surface of the rotary drivers 14 by a certain amount.
- a tool 22 is clamped in the tool holder 10 and has grooves 23 which open out towards its shaft end and extend along the shaft for driving rotation.
- these are in each case simple, non-stepped grooves with flat side walls 25 arranged radially to the tool axis 24 and an approximately flat base surface 26 connecting the side walls 25.
- the tool 22 has three troughs 28, one each Represent expansion of the grooves 23.
- the troughs 28 are advantageously elongated in the axial direction of the tool 22 and are longer than the locking bodies 20 by the idle travel of the tool.
- the tool holder 10 has a sliding sleeve 29 which surrounds the base body 11 and the locking body 20 and which is longitudinally displaceable within limits (see also FIG. 5). It contains a thickening or a retaining ring 30, which holds the locking body 20 in the troughs 28.
- Retaining ring 30 and sheet metal ring 31 can be adapted to the locking bodies 20 so that the position of the sheet metal ring '31, the penetration depth of the locking body 20 and thus indicating the Schaft barnmes ⁇ Ser of the inserted tool.
- the position of the sheet metal ring 31 or a corresponding sleeve can then be used to adjust the speed of the drive motor.
- the troughs 28, contrary to the illustration in FIGS. 1 to 4 would have to be of different depths depending on the shaft diameter.
- FIG. 2 shows the same tool holder 10 as shown in FIG. 1, with the only difference that a tool shaft 30 with a larger diameter is now used.
- the tool 30 likewise has longitudinal grooves 33, which are each formed from two pairs of side walls 35 offset in the circumferential direction.
- the grooves 33 are thus stepped, with radial sections 37 being formed between the side walls 35.
- the radial sections 37 are adapted to the guide sections 17 of the tool holder 10 and extend along a cylindrical surface.
- FIG. 3 shows a third tool 40 in the tool holder 10 which has remained unchanged.
- the shank of the tool 40 has a diameter of 12 mm and lies against the receiving bore i2.
- the grooves 43 are now designed in two stages instead of two stages as in the previous figure. Three pairs of side walls 45 alternate with radial sections 47. Otherwise, the tool 40 corresponds to the tools 22 and 30 previously shown.
- the second exemplary embodiment according to FIG. 4 differs only from the first exemplary embodiment in that two rotary drivers 14 are formed on the tool holder 10 'and only two grooves 33 on the tool 50. It has the particular advantage that tools with two or four grooves on the shank can also be clamped.
- the rotary drivers 14 are brought into register with the grooves 23 and the tool 22 is inserted into the receiving bore 12.
- the locking bodies 20 When the end of the tool shank reaches the locking bodies 20, they preferably deflect radially outward and snap back into the troughs 28 when the tool is pushed further. It is not readily possible to pull out the tool 23 because the locking bodies 20 are prevented from evading in this direction, for example by a sleeve.
- this sleeve must first be operated by the operator.
- the tool 22 is centered and guided by the guide sections 17 on the rotary drivers 14. Despite the immovable rotary driver 14, this results in good concentricity properties.
- either the rotary drivers on their front edge can be chamfered or the grooves 23 on the shaft end can be chamfered.
- the centering and guiding is improved by further guide sections 17.
- the device according to the invention for transmitting a rotary and / or impact movement to a tool is suitable, due to its gradual formation of the rotary drivers 14, for different shank diameters, without having to change anything on the tool holder 10.
- Drilling tools with drilling diameters between 4 and 8 mm have a shank diameter of 8 mm and are inserted into the tool holder 10 according to FIG. 1.
- Tools with one Drill diameters between 8 and 12 mm are given a 10 mm shank according to FIG. 2.
- Tools with drill diameters greater than 12 mm are equipped with a shank diameter of 12 mm and fit into the tool holder 10 according to the invention according to FIG. 3.
- the device according to the invention can also be used for mechanical scanning of the size of the tool used.
- the troughs 28 are designed to be more or less deep in relation to the receiving bore 17. Accordingly, the locking bodies 20 engage in different degrees.
- the end position of the locking body 20 determines the position of a scanning sleeve within the tool holder, as described in DE 35 06 008 AI (GB 21 71 340 B), which becomes the content of this document.
- the speed of the drilling machine is set correctly in accordance with the drill diameter.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Percussive Tools And Related Accessories (AREA)
- Manipulator (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Earth Drilling (AREA)
- Telephone Function (AREA)
- Surgical Instruments (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Drilling Tools (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4132023 | 1991-09-26 | ||
DE4132023A DE4132023A1 (de) | 1991-09-26 | 1991-09-26 | Einrichtung an handwerkzeugmaschinen |
PCT/DE1992/000820 WO1993005929A1 (fr) | 1991-09-26 | 1992-09-24 | Dispositif monte sur des outils a main mecaniques |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0605602A1 true EP0605602A1 (fr) | 1994-07-13 |
EP0605602B1 EP0605602B1 (fr) | 1996-07-17 |
Family
ID=6441528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92920854A Expired - Lifetime EP0605602B1 (fr) | 1991-09-26 | 1992-09-24 | Dispositif monte sur des outils a main mecaniques |
Country Status (8)
Country | Link |
---|---|
US (2) | US5474139A (fr) |
EP (1) | EP0605602B1 (fr) |
JP (1) | JP3253618B2 (fr) |
AT (1) | ATE140414T1 (fr) |
DE (2) | DE4132023A1 (fr) |
DK (1) | DK0605602T3 (fr) |
ES (1) | ES2090693T3 (fr) |
WO (1) | WO1993005929A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4210451A1 (de) * | 1992-03-30 | 1993-10-07 | Plica Werkzeugfabrik Ag Mollis | Einrichtung zur Drehmomentübertragung |
DE4317273A1 (de) * | 1993-05-25 | 1994-12-01 | Bosch Gmbh Robert | Werkzeugaufnahme für Handbohr- und Schlaggeräte mit SDS-Zusatznut |
DE4338818A1 (de) * | 1993-11-13 | 1995-05-18 | Hawera Probst Kg Hartmetall | Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung |
GB0105547D0 (en) | 2001-03-07 | 2001-04-25 | Black & Decker Inc | Tool holder for a rotary hammer or a chisel hammer |
GB0121947D0 (en) * | 2001-09-12 | 2001-10-31 | Black & Decker Inc | Tool holder for hammer |
DE10151894A1 (de) * | 2001-10-24 | 2003-05-08 | Schmidt Ulrich Ush Schraubwerk | Spannfutter zum vereinfachten Einsetzen eines Werkzeugschaftes |
EP1535704B1 (fr) * | 2003-11-26 | 2010-03-10 | HILTI Aktiengesellschaft | Porte-outil pour un outil rotatif à percussion |
DE10360008B4 (de) * | 2003-12-19 | 2006-04-06 | Wacker Construction Equipment Ag | Vorrichtung für einen Bohr- oder Schlaghammer mit Werkzeugaufnahme |
GB2414701A (en) * | 2004-06-05 | 2005-12-07 | Black & Decker Inc | Rotary spindle for a power tool |
DE102005010265A1 (de) * | 2005-03-07 | 2006-09-14 | Robert Bosch Gmbh | Werkzeughalter und Handwerkzeugmaschine |
DE102006000168A1 (de) * | 2006-04-10 | 2008-01-03 | Hilti Ag | Werkzeugaufnahme |
EP2722131B1 (fr) | 2007-06-15 | 2016-07-20 | Black & Decker Inc. | Outil d'impact hybride |
DE102007048262A1 (de) * | 2007-10-08 | 2009-04-09 | Robert Bosch Gmbh | Handwerkzeugmaschine |
US9193053B2 (en) * | 2008-09-25 | 2015-11-24 | Black & Decker Inc. | Hybrid impact tool |
US8631880B2 (en) * | 2009-04-30 | 2014-01-21 | Black & Decker Inc. | Power tool with impact mechanism |
US8460153B2 (en) * | 2009-12-23 | 2013-06-11 | Black & Decker Inc. | Hybrid impact tool with two-speed transmission |
EP2537611A4 (fr) * | 2010-02-15 | 2014-07-09 | Miyanaga Kk | Dispositif d'installation et de retrait d'outil de rotation et outil de rotation |
US8584770B2 (en) | 2010-03-23 | 2013-11-19 | Black & Decker Inc. | Spindle bearing arrangement for a power tool |
DE102010029609A1 (de) * | 2010-06-02 | 2011-12-08 | Hilti Aktiengesellschaft | Staubabweisende Werkzeugbremse, Werkzeugeinführteil, Werkzeugaufnahme, Handwerkzeugmaschine |
US11007631B2 (en) * | 2014-01-15 | 2021-05-18 | Milwaukee Electric Tool Corporation | Bit retention assembly for rotary hammer |
EP3834968A1 (fr) * | 2019-12-11 | 2021-06-16 | Hilti Aktiengesellschaft | Dispositif de transmission d'un couple de rotation d'un appareil de forage à une couronne de forage |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB906434A (en) * | 1960-04-06 | 1962-09-19 | Lucas Industries Ltd | Means for mounting a diode on a generator |
US3916435A (en) * | 1974-09-09 | 1975-10-28 | Gen Motors Corp | Heat sink assembly for button diode rectifiers |
DE2551125C2 (de) * | 1975-11-14 | 1987-04-23 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung |
DE2618596C2 (de) * | 1976-04-28 | 1984-05-17 | Robert Bosch Gmbh, 7000 Stuttgart | Werkzeughalter |
US4206820A (en) * | 1976-09-13 | 1980-06-10 | Joy Manufacturing Company | Striking bar |
DE2650134A1 (de) * | 1976-10-30 | 1978-05-11 | Bosch Gmbh Robert | Werkzeugeinsteckschaft |
DE3205063C2 (de) * | 1981-04-03 | 1986-10-09 | Robert Bosch Gmbh, 7000 Stuttgart | Werkzeughalter |
DE3335365A1 (de) * | 1983-09-29 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zum loesbaren befestigen eines kuehlkoerpers auf einem integrierten baustein |
DE3506008A1 (de) * | 1985-02-21 | 1986-08-21 | Robert Bosch Gmbh, 7000 Stuttgart | Werkzeughalter |
DE8510262U1 (de) * | 1985-04-06 | 1985-06-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Bohrfutter für die Aufnahme von Werkzeugen für reines Drehbohren, Hammerbohren und/oder Schlagbohren |
DE3539912A1 (de) * | 1985-11-11 | 1987-05-14 | Hilti Ag | Werkzeughalter fuer bohr- und meisselwerkzeuge |
DE3824894A1 (de) * | 1988-07-22 | 1990-01-25 | Bosch Gmbh Robert | Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung |
DE3843465A1 (de) * | 1988-12-23 | 1990-06-28 | Bosch Gmbh Robert | Einrichtung zum spannen von werkzeugen |
DE3941646A1 (de) * | 1989-12-16 | 1991-06-20 | Heller Werkzeug Gmbh Geb | Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge |
DE4018710A1 (de) * | 1990-06-12 | 1991-12-19 | Bosch Gmbh Robert | Elektrische maschine, vorzugsweise drehstromgenerator fuer fahrzeuge |
WO1992006823A1 (fr) * | 1990-10-16 | 1992-04-30 | Robert Bosch Gmbh | Dispositif pour machines-outils manuelles |
DE4141846A1 (de) * | 1991-12-18 | 1993-06-24 | Hilti Ag | Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge |
DE4210451A1 (de) * | 1992-03-30 | 1993-10-07 | Plica Werkzeugfabrik Ag Mollis | Einrichtung zur Drehmomentübertragung |
-
1991
- 1991-09-26 DE DE4132023A patent/DE4132023A1/de not_active Withdrawn
-
1992
- 1992-09-24 JP JP50570393A patent/JP3253618B2/ja not_active Expired - Fee Related
- 1992-09-24 DE DE59206789T patent/DE59206789D1/de not_active Expired - Fee Related
- 1992-09-24 AT AT92920854T patent/ATE140414T1/de not_active IP Right Cessation
- 1992-09-24 DK DK92920854.4T patent/DK0605602T3/da active
- 1992-09-24 WO PCT/DE1992/000820 patent/WO1993005929A1/fr active IP Right Grant
- 1992-09-24 ES ES92920854T patent/ES2090693T3/es not_active Expired - Lifetime
- 1992-09-24 EP EP92920854A patent/EP0605602B1/fr not_active Expired - Lifetime
- 1992-09-24 US US08/211,328 patent/US5474139A/en not_active Expired - Fee Related
-
1995
- 1995-04-10 US US08/419,507 patent/US5706903A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9305929A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5706903A (en) | 1998-01-13 |
DE59206789D1 (de) | 1996-08-22 |
WO1993005929A1 (fr) | 1993-04-01 |
US5474139A (en) | 1995-12-12 |
DK0605602T3 (da) | 1996-11-25 |
DE4132023A1 (de) | 1993-04-01 |
ATE140414T1 (de) | 1996-08-15 |
EP0605602B1 (fr) | 1996-07-17 |
ES2090693T3 (es) | 1996-10-16 |
JP3253618B2 (ja) | 2002-02-04 |
JPH06510710A (ja) | 1994-12-01 |
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