EP3107695A1 - Werkzeughalter - Google Patents
WerkzeughalterInfo
- Publication number
- EP3107695A1 EP3107695A1 EP15704998.2A EP15704998A EP3107695A1 EP 3107695 A1 EP3107695 A1 EP 3107695A1 EP 15704998 A EP15704998 A EP 15704998A EP 3107695 A1 EP3107695 A1 EP 3107695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recess
- tool holder
- web
- working axis
- insert
- 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
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000009527 percussion Methods 0.000 claims 1
- 229910001315 Tool steel Inorganic materials 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000005476 soldering Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- 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
-
- 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
- B25D2222/00—Materials of the tool or the workpiece
- B25D2222/21—Metals
- B25D2222/42—Steel
-
- 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
- B25D2250/051—Couplings, e.g. special connections between components
-
- 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
- B25D2250/065—Details regarding assembling of the tool
- B25D2250/075—Assembled by welding
-
- 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
- B25D2250/301—Torque transmission means
Definitions
- the present invention relates to a tool holder for a rotary and chiseling hand tool, in particular a combination hammer.
- US 7,338,051 describes a tool holder for a combination hammer.
- the tool holder has a tubular base body, in the interior of which the drill is received along its axis movable. Locking elements engage in the interior and secure the drill against falling out.
- the tool holder webs which engage in corresponding grooves of the drill to transmit torque from the tool holder to the drill.
- the webs are made of a hard metal and are used as inserts in the body. The attachment of the webs takes place in overlapping holes in the body, a fixation can be done by gluing, press fit, soldering or welding.
- the use of bars made of carbide leads to a very high wear of the drill. End pieces of the webs tilt in longitudinal grooves of the drill and knock them out.
- the tool holder according to the invention is intended for a rotating and chiseling hand tool, eg a combination hammer.
- a hollow spindle coaxially surrounds a receiving space for receiving a tool with a working axis.
- the spindle has at least one recess in the radial direction.
- An insert is inserted along a radial direction in the recess.
- the insert has a web projecting in the radial direction into the receiving space.
- a gutter is disposed within the recess and extends along the working axis. The gutter is opened into the receiving space and is bounded by the insert and an inner surface of the recess.
- the insert is preferably soldered in the recess.
- the respective contact surfaces of insert and recess should be completely wetted with the solder, otherwise the joining zone is weakened. This can be achieved in a simple manner by an excess of solder.
- the channel according to the invention reduces the contact surfaces and thereby weakens the strength of the connection, however, the channel acts as a reliable barrier for the liquid solder.
- the soldering can be done without excess.
- An embodiment provides that the web relative to the vertical direction has inclined side surfaces which protrude partially into the recess and are spaced within the recess by the groove of the spindle.
- the protruding into the receiving space part of the side surfaces may have a height which is between 50% and 75% of the total height of the web.
- the monotonically increasing cross-section of the insert in the radial direction up to the joining zone is suitable for introducing the high mechanical shear loads of the web into the spindle.
- FIG. 1 shows a combination hammer
- Figure 5 shows a recess for use in the plane V-V.
- Fig. 6 the insert in the recess
- Fig. 1 shows an example of a chiseling hand tool machine schematically a combination hammer l.
- the combination hammer l has a tool holder 2, in which a shank end 3 of a tool, for example one of the hammer drill 4, can be used.
- a primary drive of the combihammer 1 is a motor 5, which drives a hammer mechanism e and an output shaft 7.
- a user can lead the combination hammer 1 by means of a handle 8 and by means of a system switch 9 the combi hammer 1 in operation to take.
- the combination hammer l rotates the hammer drill 4 continuously about a working axis 10 and can thereby beat the hammer drill 4 in the direction of impact 11 along the working axis 10 in a substrate.
- the striking mechanism e is preferably a motor-driven pneumatic striking mechanism e.
- a bat 12 is coupled via an air spring 13 to one of the motor 5 along a working axis 10 reciprocating excitation piston 14.
- the bat 12 strikes directly or indirectly by an anvil 15 on the shaft end. 3
- the tool holder 2 is shown in detail in FIG. 2 in a longitudinal section and in a cross section in FIG. 3.
- Fig. 6 shows a detail in the plane V-V.
- the tool holder 2 has a driven by the output shaft 7 hollow spindle 16 (body) with a receiving space 17 for the tool 4.
- the hammer drill 4 can be inserted through an output-side opening 18 in the insertion direction (counter to the direction of impact 11) in the receiving space 17.
- the receiving space 17 is preferably complementary to the shank end 3, e.g. cylindrically shaped.
- the pawls 19 are inserted into slots 20 in a wall of the hollow spindle 16.
- a radial inhibition of the pawls 19 is effected by a locking ring 21, on which radially from the inside fitting the pawls 19 partially protrude into the receiving space 17.
- the projecting into the receiving space 17 part of the pawls 19 can engage in the locking groove of the tool 4.
- a spring-loaded slider 22 holds the pawls 19 within the locking ring 21, i. axially overlapping with the locking ring 21.
- the pawls 19 When inserting the hammer drill 4, the pawls 19 are moved against the spring-loaded slide 22 and get out of engagement with the locking ring 21. The pawls 19 can dodge radially and release the receiving space 17. The pawls 19 can be displaced by an actuating sleeve 23 against the spring-loaded slide 22, whereby the radial inhibition of the pawls 19 is released and the hammer drill 4 can be removed.
- the rotational movement of the hollow spindle 16 are transmitted to the hammer drill 4 via webs 24 projecting into the receiving space 17.
- the exemplary embodiment of the tool holder 2 has a web 24.
- Alternative tool holder 2, in particular for large diameter drill bits may have two or more webs 24.
- the web 24 is along the working axis 10 at the height of the slots 20 for the pawls 19th
- the web 24 is the projecting into the receiving space 17 part of an insert 25.
- the insert 25 has the web 24 and a base 26.
- the hollow spindle 16 has a recess 27 for each web 24, in which the base 26 inserted in the radial direction 28 is.
- the recess 27 is complementary to the base 26.
- the base 26 is permanently fixed by soldering in the recess 27.
- the total insert 25 is preferably monolithic, ie, made of one material and without joining zones.
- the insert 25 may be made of a tool steel.
- the hollow spindle 16 is made of a different material, for example of a low alloy steel.
- the web 24 has a main portion 29.
- the main portion 29 transmits substantially all of the torque to the combination hammer l.
- the exposed outer surfaces, in particular a roof surface 30 and two side surfaces 31, of the main portion 29 are parallel to the working axis 10.
- the outer surfaces define a trapezoidal cross-section which is constant along the working axis 10 over the entire length of the main portion 29.
- the roof surface 30 is perpendicular to a radial direction 28 (vertical direction).
- the side surfaces 31 preferably adjoin the opposite longitudinal edges of the roof surface 30.
- the side surfaces 31 are inclined with respect to the vertical direction 28 by an angle 32, and are preferably inclined to each other between 20 degrees and 40 degrees.
- the web 24 is thus preferably wider on its bottom surface, ie on the base 26, than on the roof surface 30.
- a mean width 33 of the web 24 is approximately equal, eg less than 20%, to the height 34 of the web 24.
- a length 35 of the main portion 29 is at least three times the height 34.
- the web 24 must be sufficiently long for the transmission of the torque to the drill 4.
- the web 24 has a rear portion 36 which is arranged in the direction of impact 11 after the main portion 29.
- the rear portion 36 has an end face 37, which points in the direction of impact 11.
- the end face 37 is preferably trapezoidal.
- the normal of the end face 37 lies in a plane spanned by the working axis 10 and the vertical direction 28.
- the exemplary end face 37 is not inclined perpendicular to the working axis 10 but between 70 degrees and 80 degrees.
- the end face 37 is preferably flat.
- the end surface 37 is slightly narrower than the main portion 29, i. smaller than the trapezoidal cross section.
- a width 38 of the end face 37 on the base 26 is between 80% and 90% of the width 33 of the cross section of the base 26th
- the inlet surfaces 39 connect the end face 37 with the side surfaces 31.
- the plane Entry surfaces 39 are slightly inclined relative to the side surfaces 31, preferably between 2 degrees and 10 degrees.
- the inlet surfaces 39 preferably extend from the base 26 to the roof surface 30.
- a length 40 of the inlet surfaces 39 corresponds approximately to the distance between the two inlet surfaces 39, ie the width 33 of the web 24th
- the exemplary base 26 consists essentially of an elongated cuboid center piece 41.
- the longitudinal ends of the center piece 41 are closed by semi-cylindrical end pieces 42.
- the side surfaces 43 of the center piece 41 are preferably parallel to each other.
- the side surfaces 43 extend parallel to the side surfaces 31 of the web 24 and are arranged in the spindle 16 parallel to the working axis 10.
- the side surfaces 43 of the socket are preferably longer than the web 24 or at least as the side surfaces 31 of the web 24.
- the end pieces 42 project beyond the web 24 along the working axis 10.
- the width 44 of the base 26, i. the distance of the side surfaces 43 is greater than the width 33 of the web 24.
- the base 26 projects beyond the web 24 in the circumferential direction 45.
- the base 26 may laterally projecting from the side surface 43 projections 46 which increase the width 44 of the base 26.
- the projections 46 are oriented in the circumferential direction 45 about the working axis 10 accordingly.
- the dimension of the projections 46 along the side surface 43, i. along the working axis 10, is less than 10% of the length of the side surfaces 43.
- the recess 27 in the spindle 16 has two parallel inner surfaces 47 (Fig. 5).
- the distance 48 of the inner surfaces 47 is equal to the width 44 of the base 26.
- a length of the inner surfaces 47 is equal to the length of the side surfaces 43 of the base 26.
- Semi-cylindrical ends terminate the recess 27 along the working axis 10, which is complementary to the end pieces 42 of the Sockets 26 are.
- the base 26 is caught along the working axis 10 and in the circumferential direction 45 in a form-fitting manner in the recess 27.
- a solder is introduced to fix the insert 25 in the vertical direction 28.
- the recess 27 breaks through the hollow spindle 16 along the vertical direction 28.
- the height of the recess 27 is therefore equal to the wall thickness 49 of the hollow spindle 16.
- the recess 27 tapers in the direction 28 to the working axis 10 so far that the base 26 in a Distance 50 is held by the guide surface 51.
- the exemplary recess 27 has two opposite stages 52, which adjoin the parallel inner surfaces 47 in the direction 28 to the working axis 10.
- the distance 53 of the steps 52 to each other is less than the width 44 of the base 26 and also equal to or greater than the width 33 of the web 24.
- the base 26 is located in the direction 28 to the working axis 10 at the Steps 52 on.
- the base 26 is correspondingly spaced from the cylindrical inner surface 51 of the receiving space 17 (guide surface).
- the base 26 has, for example, a height 54 which is less than the wall thickness 49, and is completely received in the recess 27.
- the web 24 projects with its inclined side surfaces 31 partially into the recess 27 inside.
- the projecting into the receiving space 17 part of the web 24 has a height 55, which is between 50% and 80% of the total height 34 of the web 24.
- the part lying in the recess 27 has a height 50 which corresponds to the distance of the base 26 from the guide surface 51 of the receiving space 17.
- the steps 52 have facing inner surfaces 56, which extend along the vertical direction 28 to the guide surface 51.
- the exemplary inner surfaces 47 are parallel to the vertical direction 28.
- two grooves 57 are formed between the inclined side surfaces 31 of the webs 24 and the inner surfaces 56 of the steps 52.
- the grooves 57 have a triangular cross-section and extend parallel to the web 24, i. parallel to the working axis 10.
- the length of the grooves 57 preferably corresponds to the length 35 of the web 24.
- the channel 57 is open to the receiving space 17.
- the opening width 58 is in the range between 0.3 mm (millimeters) and 0.6 mm.
- the opening 58 is the distance from the edge 59 of the recess 27 on the guide surface 51 to the side surface 31 of the web 24.
- the height or depth 50 of the groove 57 is equal to the distance of the base 26 from the guide surface 51.
- the depth 50 is at least equal to the opening width 58.
- the groove 57 forms an air gap
- the cylindrical end pieces 42 of the base 26 are preferably countersunk relative to the guide surface 51 against the vertical direction 28 in the recess 27.
- the vertical distance is preferably equal to the depth 50 of the grooves 57.
- the inner surfaces 56 of the steps 52 may be inclined relative to each other such that their distance 53 increases in the direction 28 to the working axis 10.
- the grooves 57 may accordingly have an opening angle which is greater than the inclination 32 of the side surfaces 43 of the web 24.
- the opening width 58 is in the range between 0.3 mm 0.6 mm.
- the depth 50 is at least equal to the opening width 58.
- the side surfaces 31 of the web 24 may be steeper within the recess 27, ie, formed with a smaller inclination relative to the vertical direction 28 than outside the recess 27.
- the cross section of the grooves 57 may have an approximately rectangular cross-section.
- the opening width 58 is in the range between 0.3 mm and 0.6 mm.
- the depth 50 is at least equal to the opening width 58.
- the hollow spindle 16 is made for example of a tubular blank. The tubular blank can be cold expanded to the desired inner profile. Subsequently, the inner and outer surfaces are machined.
- the slots 20 are formed for the pawls 19 and the recess 27 for the insert 25, for example, with a milling head. Bearing sections can be trimmed to a desired diameter and polished.
- the steel of the tubular blank is preferably a low alloy steel, e.g. 16MnCr5.
- a carbon content is less than 0.4% by weight, preferably greater than 0.1% by weight.
- the steel is low alloyed; the total admixture of alloying elements is less than 5% by weight.
- Chromium can have the highest proportion here, e.g. between 1, 0 and 2.2 wt .-%.
- the steel can also be unalloyed.
- the carbon content is also less than 0.4 wt .-%.
- the insert 25 is preferably produced without machining.
- the insert 25 is forged, for example, from a steel blank.
- the shaping takes place for example by a die, in which the blank is inserted.
- the die may be multi-piece and has the complementary shape to insert 25, i. the bridge 24 with the base 26.
- the blank is forged at a temperature between 950 Celsius and 1150 Celsius. This exceeds the AC3 temperature of the steel, which causes austenite to form.
- the insert 25 cools to room temperature, preferably in air.
- the insert 25 can alternatively be produced by means of a precision casting process.
- the blank for use 25 is a tool steel, e.g. X155CrVMo12-1.
- the carbon content is greater than 0.8% by weight, preferably less than 2.2% by weight.
- the blank is highly alloyed, the proportion of total alloying elements is greater than 7 wt .-%.
- the insert 25 is placed in the recess 27 of the hollow spindle 16.
- a solder preferably a copper-containing solder
- the insert 25 is soldered, for example in a soldering oven, preferably at a temperature in the range of 1030 Celsius and 1070 Celsius on the hollow spindle 16.
- the formed by the grooves 57 air gap between the insert 25 and the spindle 16 prevents creeping of the liquid solder to the guide surface 51 of the receiving space 17.
- the soldering process lasts between 20 minutes and 60 minutes.
- the steels of hollow mandrel 16 and insert 25 are heated above their recrystallization temperature. The tool steel loses hardness.
- the composite of hollow spindle 16 and insert 25 cools, preferably in air or in another gas atmosphere.
- the composite is heat treated in an immediately subsequent step.
- the composite is heated to a temperature between 800 Celsius and 950 Celsius.
- the temperature may be raised in two or more steps to minimize thermomechanical stresses in the composite.
- the composite is held at temperature for 30 minutes to 2 hours.
- the temperature is well below a temperature which is suitable for hardening the tool steel. In the case of the exemplary tool steel X155CrVMo12-1, this is stated as 1 160 Celsius to 1 190 Celsius. Also, this temperature is atypical for the three times repeated heat treatments on tool steel, which are made at a maximum temperature between 400 Celsius and 600 Celsius to obtain the typical hardness and resilience of a tool steel.
- the heat treatment is carried out in a carbonaceous atmosphere, e.g. in a gas carburizing furnace.
- the carbon level is adjusted by adding e.g. Increased methanol and propane.
- a C-level control preferably keeps the carbon level constant during the heat treatment.
- the carbon level is chosen so that the hollow spindle 16 is carburized.
- the C-level can be taken for the selected steel tables or simulations, or be determined in a few experiments.
- a measurement of the C-level can be determined in a known manner indirectly via the partial pressure of oxygen.
- the C level is further adjusted so that the tool steel of the insert 25 is not carburized. For example, the C level is between 0.7 and 0.75.
- the carbon can be lowered or maintained in the insert 25.
- the heat treatment is terminated by rapid quenching, for example in oil.
- the composite is cured.
- the heat treatment is followed by a single tempering at a low temperature between 180 Celsius and 210 Celsius to relieve internal stresses.
- quenching the composite to room temperature can be followed by cooling to -60 Celsius to -120 Celsius. Freezing may favor hardening of the composite.
- the one-off tempering follows the freezing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14155949.2A EP2910338A1 (de) | 2014-02-20 | 2014-02-20 | Werkzeughalter |
PCT/EP2015/052731 WO2015124459A1 (de) | 2014-02-20 | 2015-02-10 | Werkzeughalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3107695A1 true EP3107695A1 (de) | 2016-12-28 |
EP3107695B1 EP3107695B1 (de) | 2019-11-13 |
Family
ID=50137535
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14155949.2A Withdrawn EP2910338A1 (de) | 2014-02-20 | 2014-02-20 | Werkzeughalter |
EP15704998.2A Active EP3107695B1 (de) | 2014-02-20 | 2015-02-10 | Werkzeughalter |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14155949.2A Withdrawn EP2910338A1 (de) | 2014-02-20 | 2014-02-20 | Werkzeughalter |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170072552A1 (de) |
EP (2) | EP2910338A1 (de) |
CN (1) | CN106029305B (de) |
WO (1) | WO2015124459A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021203062A1 (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 |
DE102021203063A1 (de) * | 2021-03-26 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine mit einer Verriegelungseinrichtung |
DE102021203065A1 (de) * | 2021-03-26 | 2022-09-29 | Robert Bosch Gesellschaft mit beschränkter Haftung | Handwerkzeugmaschine mit einer Verriegelungseinrichtung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3069577D1 (en) * | 1979-01-09 | 1984-12-13 | Bendix Corp | Collet and chuck assembly |
EP0029968A3 (de) * | 1979-11-30 | 1982-01-27 | Black & Decker Inc. | Werkzeughalter |
FR2629376B1 (fr) * | 1988-04-01 | 1994-04-29 | Prospection & Inventions | Porte-outil de foreuse, en particulier pour foret avec ou sans rainure d'entrainement |
DE4340726C1 (de) * | 1993-11-30 | 1995-01-26 | Bosch Gmbh Robert | Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen |
DE29813159U1 (de) * | 1998-07-23 | 1998-12-03 | Berner Gmbh | Werkzeughalter und darin einsetzbares Werkzeug |
GB2395158B (en) * | 2002-11-14 | 2005-11-16 | Black & Decker Inc | Tool holder for a rotary hammer |
CN102218729B (zh) * | 2006-12-21 | 2013-01-09 | 苏州宝时得电动工具有限公司 | 动力工具 |
CN201685235U (zh) * | 2010-02-26 | 2010-12-29 | 广欣工业股份有限公司 | 一种无间隙主轴锁定装置 |
JP5456555B2 (ja) * | 2010-04-23 | 2014-04-02 | 株式会社マキタ | 電動工具 |
EP2883662A1 (de) * | 2013-12-13 | 2015-06-17 | HILTI Aktiengesellschaft | Werkzeughalter |
-
2014
- 2014-02-20 EP EP14155949.2A patent/EP2910338A1/de not_active Withdrawn
-
2015
- 2015-02-10 CN CN201580009486.8A patent/CN106029305B/zh active Active
- 2015-02-10 WO PCT/EP2015/052731 patent/WO2015124459A1/de active Application Filing
- 2015-02-10 US US15/120,441 patent/US20170072552A1/en not_active Abandoned
- 2015-02-10 EP EP15704998.2A patent/EP3107695B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
EP3107695B1 (de) | 2019-11-13 |
EP2910338A1 (de) | 2015-08-26 |
WO2015124459A1 (de) | 2015-08-27 |
CN106029305B (zh) | 2018-02-06 |
US20170072552A1 (en) | 2017-03-16 |
CN106029305A (zh) | 2016-10-12 |
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