EP3517248A1 - Dispositif de maintien pour une machine-outil portative - Google Patents

Dispositif de maintien pour une machine-outil portative Download PDF

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Publication number
EP3517248A1
EP3517248A1 EP18210321.8A EP18210321A EP3517248A1 EP 3517248 A1 EP3517248 A1 EP 3517248A1 EP 18210321 A EP18210321 A EP 18210321A EP 3517248 A1 EP3517248 A1 EP 3517248A1
Authority
EP
European Patent Office
Prior art keywords
holding
holding unit
holding device
receptacle
output shaft
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
Application number
EP18210321.8A
Other languages
German (de)
English (en)
Other versions
EP3517248B1 (fr
Inventor
Sebastian Melsa
Thomas Duerr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3517248A1 publication Critical patent/EP3517248A1/fr
Application granted granted Critical
Publication of EP3517248B1 publication Critical patent/EP3517248B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/12—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0064—Means for adjusting screwing depth

Definitions

  • the present invention relates to a holding device for a hand tool with a tool holder, which is designed at least for receiving an insert tool, in particular a screwdriver bit, wherein the holding device for holding a fastener, in particular a screw is provided.
  • the hand tool machine has a tool holder which is designed to receive a tool designed as a screwdriver bit.
  • the holding device is provided for holding a screw, wherein the holding device is designed as a bit holder of the power tool.
  • the present invention provides a holding device for a hand tool with a tool holder, which is designed at least for receiving an insert tool, in particular a screwdriver bit, wherein the holding device for holding a fastener, in particular a screw is provided.
  • a first holding unit for fixing the holding device to a handheld power tool and a second holding unit axially movable on the first holding unit for holding a fastening element, in particular a screw element are provided, wherein the second holding unit can be arranged in a working position and a parking position and has a receptacle, in which a holding element, in particular a magnet arranged is to allow in the working position holding the fastener in the axial direction of the holding device.
  • the invention thus makes it possible to provide a holding device in which an arrangement of the holding device can be made possible directly on the hand tool by the first holding unit and in which a simplified screwing operation can be made possible by the holding element associated with the second holding unit.
  • a compact holding device can be provided by the relatively short training a safe and user-friendly screwing can be possible.
  • By trained as a magnet holding element designed as a screwdriver bit insert tool can be magnetized and thus the screw can be held by the magnetized screwdriver bit.
  • the receptacle is arranged at a free axial end of the second holding unit, wherein the holding element via a cohesive connection, in particular an adhesive connection, is arranged in the receptacle.
  • a cohesive connection in particular an adhesive connection
  • the receptacle is preferably arranged on one of the first holding unit facing the axial end of the second holding unit, wherein the holding element is fixed via a clamping sleeve in the receptacle.
  • the clamping sleeve has at least one first clamping element and at least one second clamping element and the second holding unit comprises at least one fixing element, wherein the first clamping element secures the holding element to the second holding unit, and the second clamping element with the fixing an operative connection, in particular a form - and / or non-positive connection, trains.
  • the first clamping element secures the holding element to the second holding unit
  • the second clamping element with the fixing an operative connection, in particular a form - and / or non-positive connection, trains.
  • the receptacle is arranged at a distance from a free axial end of the second holding unit, wherein the second holding unit is injection-molded onto the holding element by means of plastic spraying.
  • the second holding unit is injection-molded onto the holding element by means of plastic spraying.
  • the holding element in the working position of the second holding unit, is displaced axially from a free axial end of an output shaft driving the tool holder in the direction of an axial end facing the first holding unit such that the holding element comes into abutment with a fastening element and axially in the parking position a free axial end of the second holding unit is displaced, that the second holding unit releases the insert tool.
  • a fastener are fixed by the holding device at least axially and in the parking position a werkzeug lymph take place, with a one-handed screwing and a one-handed insert tool change can be enabled.
  • An output shaft which drives the tool holder is preferably provided with at least one inner receptacle, wherein the inner receptacle is designed for the arrangement of an insertion tool, and an insert tool arranged in the inner receptacle projects beyond a free axial end of the second holding unit in the parking position of the second holding unit.
  • the second holding unit is acted upon by at least one spring element in the working position.
  • a robust and safe working position can be provided.
  • the second holding unit preferably has, in particular on its outer circumference, at least one actuating element for the manual adjustment of the second holding unit from the working position to the parking position, or vice versa.
  • a manual adjustment between the working position and the parking position can be easily and easily made possible.
  • a side of a fastening element arranged on the holding device preferably faces on a side of the holding element facing the fastening element.
  • the second holding unit is associated with a depth stop, wherein a depth adjustment of a desired depth of engagement of a fastening element arranged on the holding device via a thread formed between the first and second holding unit or via a guide groove and an engageable therein in locking positions locking pin.
  • the second holding unit is held by the holding element in the parking position.
  • a secure and reliable arrangement of the second holding unit in the parking position can be made possible, whereby a one-handed insert tool change can be made possible.
  • a free axial end of an output shaft driving the tool holder preferably forms a stop surface for the retaining element in the parking position.
  • a stable and robust stop surface can be provided for the holding element, by means of which a secure arrangement in the parking position can be made possible.
  • an element forms a stop surface for the holding element in the parking position.
  • an alternative abutment surface can be provided for the retaining element.
  • Fig. 1 shows an exemplary hand tool 100 having a tool housing 105 with a handle 115.
  • the power tool 100 for mains-independent power supply is mechanically and electrically connectable to a battery pack 190 and exemplified as a cordless drill driver, but alternatively, for example, can also be operated network-dependent.
  • the present invention is not limited to cordless drill, but rather can be found in various hand tool machines application in which an insert tool is rotated, for example in a screwdriver or cordless screwdriver, etc.
  • electric drive motor 180 is preferably arranged in the tool housing 105, at least one of the battery pack 190 is supplied with power, electric drive motor 180 is preferably arranged.
  • a gear 109 is arranged in the tool housing 105, to which a torque coupling 199 is optionally assigned.
  • the drive motor 180 is switched on and off, for example via a manual switch 195 and may be any type of motor, such as an electronically commutated motor or a DC motor.
  • the drive motor 180 is preferably connected via the gear 109 with a drive shaft 120, for example a drive spindle, and drives this drive shaft 120 during operation of the power tool 100 preferably via the gear 109 rotating.
  • gear 109 and the drive motor 180 arranged in a gear housing 110, and a motor housing 185, which are illustratively arranged separately from each other in the tool housing 105. It should be noted that the drive motor 180 and the gear 109 may also be arranged directly in the tool housing 105.
  • the power tool 100 is associated with a tool holder 140 for receiving an insert tool 170, in particular a screwdriver bit.
  • the tool holder 140 has, for example, a bit holder 145 and is arranged in the region of an end face 112 of the tool housing 105 or of the gear housing 110.
  • the bit holder 145 is formed of stainless steel to field lines of the holding device according to the invention (300 in Fig. 3 ) associated magnets (330 in Fig. 3 ) not to absorb.
  • the bit holder may also have any other material, eg steel.
  • the bit holder 145 is preferably associated with a magnet to hold the screwdriver bit 170.
  • a magnet is preferably not sufficient here, a screw element (270 in FIG Fig. 2 ) to magnetize and thus also to hold.
  • Fig. 2 shows the tool holder 140 of the power tool 100 of Fig. 1 wherein the drive shaft 120 is operatively connected to or integrally formed with an output shaft 224 of the power tool 100.
  • the tool holder 140 or the bit holder 145, is preferably formed.
  • the bit holder 145 preferably and illustratively has a receiving body 247 with a polygonal socket 248 and an outer periphery 249.
  • the polygonal socket 248 is designed to receive insert tools 170 with external polygonal couplings, in particular a screwdriver bit 170, for which reason the insert tool 170 is referred to below as "screwdriver bit 170" for simplicity and clarity.
  • the screwdriver bit 170 is preferably designed for screwing in and / or unscrewing a fastening element 270, in particular a screw element.
  • the receiving body 247 preferably has on its outer periphery 249 a hand-held power tool 100 facing receiving portion 289, which in the direction of the free end of the output shaft 224 in a holding portion 286th passes.
  • the receiving region 289 preferably has a larger diameter than the holding region 286.
  • the holding region 286 is delimited in the direction of the free end of the output shaft 224 by a shoulder 284, preferably designed as an annular web, wherein the annular web 284 preferably has a larger diameter than the holding region 286.
  • a further receiving portion 282 is preferably arranged between the annular web 284 and the free end of the output shaft 224.
  • a fastening interface 250 which is also referred to below as a "machine interface" is preferably provided.
  • the machine interface 250 is preferably used for fastening a replaceable tool attachment (300 in FIG Fig. 3 ).
  • the machine interface 250 has a fastening device 258 fixed to a front side 112 of the housing 110 on the gear housing 119 or the housing 110 secured against rotation, preferably at least in sections, with an outer circumference 259 and an inner circumference 257. This sheathed example, at least in sections, the bit holder 145 with a predetermined radial spacing.
  • a plurality of groove-like receptacles 252, 254 are illustratively provided, which preferably form an angular position device 260 and are designed to receive at least one and preferably a plurality of angle adjustment elements.
  • the groove-like receptacles 252, 254 are exemplarily in the longitudinal direction of the machine interface 150, i. in the direction of an arrow 299, aligned.
  • the groove-like receptacles 252, 254 are preferably formed by axially aligned in the direction of the arrow 299 projections, of which for the sake of clarity and clarity of the drawing, only a single is provided with the reference numeral 253.
  • the fastening device 258 is preferably arranged on the end face 112 of the housing 110 via at least one and illustratively three fastening elements 262, 264, 266.
  • the fasteners 262, 264, 266 are formed in the manner of rivets or screws.
  • Fig. 3 shows the hand tool 100 of Fig. 2 with a tool attachment 300 according to the invention, which is designed as a holding device and is hereinafter referred to as "holding device 300".
  • the holding device 300 is designed to hold the fastening element 270, in particular a screw element.
  • the holding device 300 preferably has a first holding unit 310 for fixing the holding device 300 to the handheld power tool 100 and a second holding unit 320 for holding the fastening element 270, in particular the screwing element.
  • the first holding unit 310 is preferably designed to enable a releasable attachment of the holding device 300 to the output shaft 224 of the hand tool 100 driving the tool holder 140.
  • the second holding unit 320 preferably has at least one holding element 330, in particular a magnet.
  • the at least one magnet 330 is designed as a ring magnet.
  • the ring magnet 330 preferably has an inner receptacle 335, which is designed such that the screwdriver bit 170 can be arranged in the inner receptacle 335.
  • a screw head 270 of the screw element 270 that can be arranged on the screwdriver bit 170 can be arranged only partially in the inner receptacle 335.
  • the magnet 330 may also be formed from ring segments.
  • a plurality of magnets for holding the screw element 270 may be assigned to the second holding unit 320.
  • the magnets may also have any other shape, e.g. a square shape.
  • the output shaft 224 may be made of a magnetic steel.
  • the magnet 330 is substantially not designed to magnetize the screwdriver bit 170.
  • the magnet 330 designed as a ring magnet is designed such that a north pole of the magnet 330 is arranged in the direction of the screw element 270 and a south pole in the direction of the output shaft 224, or vice versa.
  • the second holding unit 320 is preferably arranged axially movably on the first holding unit 310, wherein the second holding unit 320 can be arranged in a working position and a parking position. In Fig. 3 the second holding unit 320 is arranged in the working position.
  • the holding device 300 preferably the first and second holding unit 310, 320, at least partially formed of plastic.
  • the first and second holding units 310, 320 are preferably designed as an injection molded part. It should be understood, however, that the retainer 300 may also comprise another material, e.g. Steel, aluminum or any other cast material.
  • Fig. 4 shows the releasably arranged on the output shaft 224 of the power tool 100 holding device 300 of Fig. 3 , with a first, the hand tool 100 end facing 404 and an opposite free end 402.
  • the first holding unit 310 with the tool holder 140 driving output shaft 224 is connectable.
  • the first holding unit 310 is preferably arranged on the output shaft 224 such that rotational driving takes place up to a predetermined torque value.
  • the predetermined torque value is preferably 0.1 Nm. If this torque value is exceeded, for example by retaining the holding device 300 during a screwing operation, the rotational drive is released and the holding device 300 no longer rotates with the output shaft 224.
  • the screwdriver bit 170 rotates with the screw member 270, because the magnet 330 is not aligned to further hold the screw member 270, since the magnet 330 is preferably formed only for axially holding the screw member 270 and not for radial retention.
  • the first holding unit 310 preferably has a conical section 411 and a cylindrical section 413 adjoining the conical section 411.
  • the conical section 411 is preferably arranged on a side of the first holding unit 310 facing the handheld power tool 100.
  • the conical section 411 preferably forms a transition section from a diameter of the fastening device 258 assigned to the handheld power tool 100 to a diameter assigned to the holding device 300.
  • the conical section 411 preferably also prevents fouling and / or damaging the fastening device 258 or penetration of dirt, sawdust etc. into the interior of the hand tool 100.
  • the formation of the portion 411 of the first holding unit 310 only exemplary is formed cone-shaped.
  • the portion 411 may also have any other shape, for example, in the manner of a hemisphere.
  • the cylindrical portion 413 may be omitted, wherein the portion 411 should have a guide for the second holding unit 320.
  • the first holding unit 310 is preferably assigned an annular base body 412, which is preferably arranged inside the conical portion 411.
  • the annular base body 412 is formed integrally with the conical portion 411, but may also be mechanically attached thereto.
  • the two sections 411 and 413 may also be designed in the manner of a housing, in which the annular base body 412 is arranged or pressed in the manner of a receiving sleeve.
  • the annular base body 412 is preferably designed for the arrangement of the holding device 300 on the output shaft 224. When mounted holding device 300 on the power tool 100, and the output shaft 224, the annular base body 412 with its inner receptacle (522 in Fig. 6 ) is arranged on the receiving region 289 of the output shaft 224.
  • the first holding unit 310 preferably has at least one holding part 490.
  • the at least one holding part 490 is preferably formed to form a positive connection and / or a frictional connection with the output shaft 224.
  • the holding part 490 preferably forms the force and / or positive connection with the output shaft 224 associated formed as an annular web paragraph 284 and / or a recess (912 in Fig. 11-14 ) out.
  • the at least one holding part 490 is preferably formed integrally with the first holding unit 310, attached to the first holding unit 310 or in a receptacle (1007 in FIG Fig. 13 and Fig. 14 ; 1131 in FIGS. 16 and 17 ; 1164 in Fig. 19 ; 1195 in Fig. 25 ) arranged.
  • the first holding unit 310 a plurality of holding parts 490, preferably four holding parts 490, wherein in Fig. 4 only two holding parts 490 are shown. It should be understood, however, that the formation of the first retaining unit 310 with four retaining portions 490 is merely exemplary in nature and should not be construed as limiting the present invention. Thus, the first holding unit 310 may have any number of holding parts 490. According to one embodiment, the at least one holding part 490 is designed in the manner of a snap-action hook 414.
  • the exemplary four snap hooks 414 are preferably arranged on the main body 412 of the first holding unit 310, but may also be arranged on another element assigned to the first holding unit 310 or fastened to it via a connection.
  • the snap hook 414 may also be formed as a sheet metal forming part.
  • the annular base body 412 of the first holding unit 310 preferably has an inner receptacle 499.
  • at least one spring element 410 for loading the second holding unit 320 is arranged in the working position.
  • the spring element 410 is preferably arranged between the end of the inner receptacle 499 facing the first axial end 404 of the holding device 300 and the end of the second holding unit 320 facing the first axial end 404.
  • the cylindrical section 413 of the first holding unit 310 preferably has an inner receptacle 417, which preferably widens in the direction of an end 402 of the holding device 300 facing the handheld power tool 100 via a rising edge 418 into a guide section 416.
  • the guide section 416 preferably has a larger diameter than the inner receptacle 417, wherein the diameter of the guide section 416 is assigned to a limiting element 438 assigned to the second holding unit 320.
  • the projecting edge 418 is preferably designed to limit a movement of the second holding unit 320 in the direction of the free end 402 of the holding device 300.
  • the second holding unit 320 arranged in the working position.
  • the second holding unit 320 preferably has an approximately cylindrical main body 431.
  • the second holding unit 320, or the cylindrical main body 431 preferably has an outer diameter 417 of the first holding unit 310 associated with the inner receptacle 417.
  • the second holding unit 320 preferably has an inner receptacle 432, which is designed for guiding on the output shaft 224, in particular on the receiving area 282 formed at the free end of the output shaft 224.
  • To the The first end 402 of the holding device 300 facing the end of the second holding unit 320 is preferably at least one limiting element 438 is formed.
  • the limiting elements 438 are arranged along the circumference of the cylindrical base body 431.
  • the at least one limiting element 438 can also be designed as a peripheral collar.
  • the limiting elements 438 are resilient, so that a simple assembly can take place. During assembly, the limiting elements 438 are acted upon in the radial direction inwards and can thus be arranged through the inner receptacle 417 in the guide section 416.
  • the second holding unit has a receptacle 436.
  • the receptacle 436 is formed in the cylindrical base body 431.
  • the magnet 330 is preferably arranged in the receptacle 436 via a clamping connection and / or via an integral connection.
  • the magnet 330 is glued into the receptacle 436.
  • the receptacle 436 is arranged at a free end 403 of the second holding unit 320. In Fig.
  • the receptacle 436 is formed at the free end 403, wherein the magnet 330 is arranged in the receptacle 436 such that a side of the magnet 330 facing the free end 403 and the second holding unit 320 form a planar surface.
  • the inner receptacle 432 of the second holding unit 320 has a holding portion 434, against which the magnet 330 abuts against its side facing away from the free end 403.
  • the holding portion 434 is preferably formed as an annular wall 434.
  • the annular wall 434 preferably prevents movement of the magnet 330 in the direction of the first axial end 404 of the holding device 300.
  • An adhesive is preferably arranged only in the region of the receptacle 436 and preferably not in the region of the annular wall 434.
  • the magnet 330 can also in the Recording 436 be clamped.
  • the second holding unit 320 is arranged in the working position, in which, as described above, the at least one spring element 410 acts on the second holding unit 320.
  • the limiting element 438 of the second holding unit 320 preferably abuts against the rising edge 418 of the first holding unit 310.
  • Fig. 5 shows the holding device 300 of Fig. 4 in the parking position.
  • the second holding unit 320 is preferably arranged displaced in the direction of the first end 404 of the holding device 300, or illustratively to the left.
  • the second holding unit 320 is preferably arranged within the first holding unit 310.
  • a displacement of the second holding unit 320 is preferably carried out manually by a user of the power tool 100.
  • the spring element 410 is compressed.
  • the screwdriver bit 170 arranged in the inner receptacle 248 preferably projects beyond the free axial end 403 of the second holding unit 320 in the parking position of the second holding unit 320.
  • the second holding unit 320 is held in the parking position by the magnet 330.
  • Fig. 6 shows the holding device 300 of FIG. 3 to FIG. 5 in the working position, viewed from the first end 404. It clarifies Fig. 6 the first holding unit 310 with the conical portion 411 and the annular base body 412.
  • the main body 412 illustratively has four recesses 512.
  • the base body 412 preferably has a number of recesses 512 corresponding to a number of delimiting elements 438 of the second holding unit 320. In the parking position, the limiting elements 438 are preferably arranged in the recesses 512.
  • clarified Fig. 6 an inner circumference 522 of the main body 412, wherein the inner circumference 522 can be arranged on the output shaft 224.
  • Fig. 7 shows the holding device 300 of FIG. 3 to FIG. 5 which has at least one, preferably four, illustratively three actuating elements 612 for loading the second holding unit 320 into the parking position.
  • the second holding unit 320 has the actuating elements 612 for manually adjusting the second holding unit 320 from the working position to the parking position, or vice versa.
  • the actuating elements 612 are arranged on the outer circumference of the second holding unit 320.
  • the actuating elements 612 are preferably designed as radial extensions 614 of the second holding unit 320.
  • the first holding unit 310, or the cylindrical portion 413 of the first holding unit 310 preferably has recesses 622 associated with the actuating elements 612.
  • Fig. 8 shows the holding device 300 of Fig. 7 in the working position, wherein the second holding unit 320 is not acted upon by the spring element 410 in the working position.
  • An embodiment without spring element 410 is possible, since the magnetic force between the magnet 330 and the screw element 270, when a threshold value is reached, keeps the second holding unit 320 in the working position.
  • the second holding unit 320 has in the in Fig. 8 shown embodiment at its the first end 404 of the holding device 300 facing the end of an axial extension 712.
  • the axial extension 712 is preferably formed as a cylindrical extension.
  • the inner receptacle 499 of the first holding unit 310 is preferably formed as a guide 725 of the axial extension 712, wherein the axial extension 712 is slidably disposed in the guide 725.
  • Analogous to the holding device 300 of Fig. 4 is the limiting element 438 in the in Fig. 8 shown working position of the second holding unit 320 at the Anstehkante 418 of the first holding unit 310.
  • Fig. 9 shows the holding device 300 of Fig. 7 and Fig. 8 in the parking position.
  • the second holding unit 320 by a manual displacement of a user or by acting on the actuators 612 of Fig. 7 in the direction of the first end 404 of the holding device 300 within the first holding unit 310.
  • An illustratively left end of the axial extension 712 stands at an illustratively left end of the inner receptacle 499, or the guide 725 of the first holding unit 310, at.
  • Fig. 10 shows the holding device 300 of Fig. 3 to Fig. 6 with the example designed as a snap hook 414 holding part 490 in the working position.
  • the snap hooks 414 as described above, form a force and / or positive connection with the output shaft 224 or the output shaft 224 associated ring land 284.
  • the snap hooks 414 preferably act on the first support unit 310 against the annular web 812.
  • a side 830, facing the magnet 330, of the screw element 270 arranged on the holding device 300 preferably lies on a screw element 270 facing the magnet Page 829 of the magnet 330.
  • the screw 270 is at least approximately magnetized and thus held at least in the axial direction 299 of the holding device 300.
  • Fig. 11 shows the first holding unit 310 of Fig. 3 to Fig. 9 on the output shaft 224.
  • the output shaft 224 preferably has a recess 912 between the receiving region 289 and the annular web 284.
  • the groove 912 is in Fig. 11 preferably rectangular in shape, but may have any shape.
  • the holding part 490 preferably forms the force and / or positive connection with the recess 912.
  • the inner receptacle 432 is assigned to the first holding unit 310.
  • the interior shot 432 is in Fig. 11 arranged on the receiving portion 282 of the output shaft 224.
  • Fig. 12 shows the first holding unit 310 of Fig. 11 wherein the output shaft 224 has a recess 912 according to another embodiment.
  • the recess 912 is preferably formed as Trapezeinstich. Analogous to Fig. 11
  • the holding part 490 preferably forms the force and / or positive connection with the recess 912.
  • Fig. 13 shows the first holding unit 310 on the output shaft 224 of Fig. 12 or with the recess 912.
  • the first holding unit 310 has a receptacle 1007.
  • the receptacle 1007 is preferably formed in the radial direction of the output shaft 224 and preferably has at least one, illustratively two, constricting portions 1008 at its output shaft 224 facing or open end.
  • the holding part 490 is in Fig. 13 formed in the manner of a spring-loaded Beauftschungselements 1004.
  • the urging element 1004 is formed in the manner of a ball, but may also have any other shape, for example a rectangle.
  • the urging element 1004, as well as a spring element 1002 acting on the urging element 1004, are arranged in the receptacle 1007.
  • the spring element 1002 acts on the urging element 1004 out of the receptacle 1007 or into the recess 912 and thus fixes the holding device 300 on the output shaft 224.
  • the illustratively two constriction sections 1008 prevent falling out of the biasing element 1004 from the receptacle 1007th
  • Fig. 14 shows the output shaft 224 with the recess 812 of FIGS. 12 and 13 and a holding part 490, which is preferably formed in the manner of a retaining spring 1110.
  • Fig. 15 shows the free end of the output shaft 224 with the annular web 284 and the receiving portion 282, wherein the first holding unit 310 is arranged by a holding part 490 according to another embodiment of the output shaft 224.
  • the output shaft 224 is preferably made of ferromagnetic steel and the holding part 490 is preferably formed in the manner of a magnet 1122.
  • the magnet 1122 is formed as a ring magnet 1121.
  • the ring magnet 1121 is preferably arranged on the receiving region 282 of the output shaft 224, preferably between the annular web 284 of the output shaft 224 and a free end of the output shaft 224 facing side 1124 of the receptacle 1007 of the first holding unit 310.
  • the receptacle 1007 is designed such that the diameter is greater than the diameter of the annular web 284, so that the annular web 284 can be arranged within the receptacle 1007.
  • Fig. 16 shows the arranged in the receptacle 1007 of the first holding unit 310 output shaft 224 of Fig. 15 in which the magnet 1122, which is preferably designed as a ring magnet 1121, is arranged at the free end of the output shaft 224.
  • the ring magnet 1121 is arranged in front of, or illustratively to the right of the inner receptacle 248, for the arrangement of an insertion tool 170.
  • the first holding unit 310 preferably has a receptacle 1131.
  • the receptacle 1131 is arranged, for example, on a side facing the free end 402 of the holding device 300.
  • the receptacle 1131 preferably has a larger diameter than the inner receptacle 432.
  • the ring magnet points 1121 preferably has an inner receptacle 1132 for the at least partial arrangement of the screwdriver bit 170.
  • the holding part 490, here in Fig. 16 the ring magnet 1121 may be formed to hold the holder 300 and the screw member 270.
  • Fig. 17 shows the arranged in the receptacle 1007 of the first holding unit 310 output shaft 224 of Fig. 16 , wherein the holding part 490 is preferably formed in the manner of a magnet 1122 with at least one guide sleeve 1141.
  • the magnet 1122 which is preferably designed as a ring magnet 1121, is assigned at least one, illustratively two guide sleeves 1141, wherein the ring magnet 1121 is preferably arranged between the two guide sleeves 1141.
  • the guide sleeves 1141 are preferably arranged in the receptacle 1131 of the first holding unit 310 and, analogously to the ring magnet 1121, have an inner receptacle 1142 for the at least partial arrangement of the screwdriver bit 170.
  • the two guide sleeves 1141 have different lengths, wherein the guide sleeves 1141 may also be of the same length.
  • the conductive sleeves 1141 are ferromagnetic to conduct a magnetic flux to the fixture 300 and the screw 270 held by the fixture 300.
  • the length of the guide sleeves 1141, a distance to the output shaft 224 and / or to the screw 270 can be determined, whereby a desired holding force can be adjusted.
  • Fig. 18 shows the first holding unit 310 of Fig. 3 to Fig. 9 , which is provided according to a further embodiment with at least one holding part 490, which is formed in the manner of a loading member 1154.
  • the first holding unit 310 preferably has a cylindrical main body 1152 with an inner receptacle 1153.
  • at least one, preferably a plurality, illustratively six holding parts 490 designed as loading parts 1154 are arranged on the inner receptacle 1153.
  • the loading parts 1154 are designed in the manner of a rib for forming a press fit with the output shaft 224.
  • the first holding unit 310 is preferably formed from an elastic or rubber-like material.
  • the first holding unit 310 can be pushed onto the output shaft 224 and by the interference fit between the The first holding unit 310, the holding part 490 and the output shaft 224 is preferably formed, the adhesive force.
  • Fig. 19 shows the output shaft 224 of FIGS. 15 to 17 with the formed according to another embodiment first holding unit 310 of Fig. 3 to Fig. 9 ,
  • the first holding unit 310 has a receptacle 1164 for arranging a holding part 490 designed as a loading part 1154.
  • the urging member 1154 is analogous to Fig. 18 formed of an elastic material, preferably as a rubber ring.
  • the rubber ring 1154 is preferably pressed into the receptacle 1164 in order to prevent it from falling out.
  • the rubber ring 1154 protrudes preferably in sections from the receptacle 1164 and thus forms with the output shaft 224, and the receiving area 282, the interference fit.
  • Fig. 20 shows the formed according to another embodiment first holding unit 310 of Fig. 3 to Fig. 9 , which is analogous to the first holding unit 310 of Fig. 18 a cylindrical base body with the inner receptacle 432, wherein on the inner receptacle 432, the at least one holding part 490 is arranged.
  • the first holding unit 310 is preferably analogous to Fig. 18 made of an elastic material.
  • the at least one holding part 490 is formed as a loading part 1172, wherein the loading part 1172 compared to the loading part 1154 of Fig. 18 only in sections in the longitudinal direction 1175 of the first holding unit 310 is formed.
  • a plurality of biasing parts 1172 are arranged in the circumferential direction of the first holding unit 310.
  • the urging portions 1172 for forming the interference fit with the output shaft 224 are preferably formed in the manner of wedges 1174.
  • the wedges 1172 are for engagement in corresponding grooves (1182 in Fig. 21 ) formed on the output shaft 224.
  • the wedges 1174 are preferably arranged on the inner receptacle 432 such that a respective tip of the wedge 1174 faces the hand tool 100 when mounted on the output shaft 224.
  • the wedges 1174 are formed integrally with the first holding unit 310, however, the wedges 1174 can analogously to Fig. 19 in the first holding unit 310 be pressed.
  • the plurality of wedges 1174 may also be combined as a ring and be pressed into the first holding unit 310.
  • Fig. 21 shows the trained according to an alternative embodiment output shaft 224 of Fig. 2 with longitudinal grooves 1182.
  • the output shaft 224 has at least one longitudinal groove 1182, preferably a plurality of longitudinal grooves 1182 and preferably a number of longitudinal grooves assigned to the number of loading parts 1172.
  • the first holding unit 310 is pushed onto the output shaft 224.
  • the output shaft 224 has interruptions, or grooves, 1184.
  • the interruptions, or grooves 1184 are formed as indentations of the webs formed by the longitudinal grooves 1182.
  • the wedge 1172 is designed to engage in corresponding grooves 1182, 1184 formed on the output shaft 224
  • Fig. 22 shows the first holding unit 310 of Fig. 20 with the inner receptacle 432, on which the at least one holding part 490 is arranged.
  • the at least one holding part 490 is formed as a loading part 1172, wherein the loading part 1172 compared to the formed as wedges loading parts 1172 of Fig. 20 in the radial or tangential direction 1176 of the first holding unit 310 is formed.
  • the wedges 1174 are arranged as ring sections on the inner receptacle 432.
  • the wedges 1172 are integrally formed with the first holding unit 310, however, the wedges 1172 can analogously to Fig. 19 also be pressed into the first holding unit 310.
  • the plurality of wedges 1172 may also be combined as a ring and pressed into the first holding unit 310.
  • the wedges 1172 are designed to engage in corresponding grooves 1184 of the output shaft 224.
  • the first holding unit 310 is first pushed longitudinally onto the output shaft 224 and then rotated circumferentially.
  • the wedges 1172 are arranged in the region of the interruptions 1184 of the output shaft 224 and form there the interference fit.
  • Fig. 23 shows the formed according to another embodiment first holding unit 310 of Fig. 3 to Fig. 9 with a holding part designed as a magnet 490.
  • the magnet 1194 is preferably designed as a ring magnet and arranged on a side of the holding device 300 facing the handheld power tool 100.
  • the magnet 1194 may also be formed from ring segments.
  • the magnet 1194 forms a magnetic flux with fastening device 258 of handheld power tool 100.
  • the fastening device 258 is preferably formed from a ferromagnetic material.
  • the fastening device 258 preferably does not rotate with the output shaft 224, and thus the holding device 300 does not rotate with the output shaft 224 as well. Therefore, a bearing of the holding device 300, or the first holding unit 310, on the output shaft 224 is required.
  • a sliding bearing between the first holding unit 310 and the output shaft 224 is arranged, wherein a material pairing of the materials of the two elements is to be selected so that a sliding between the output shaft 224 and the first holding unit 310 is possible.
  • the mentioned storage is in Fig. 23 not shown.
  • the first holding unit 310 in the region of the holding portion 286 of the output shaft 224 has a recess 1192 in which the output shaft 224 can rotate.
  • Fig. 24 shows the formed according to another embodiment first holding unit 310 of Fig. 3 to Fig. 9 , which is analogous to the first holding unit 310 of Fig. 24 Has holding parts 490 on its front side.
  • the holding parts 490 are formed in the manner of coupling elements 1211, which form a coupling contour 1210.
  • the coupling elements 1211 are preferably trapezoidal and have an elastic material.
  • the coupling elements 1211 form with the fastening device 258 of the power tool 100, a fixation, which is preferably designed as a clamping connection.
  • the coupling elements 1211 are arranged in the groove-like receptacles 252, 254 of the fastening device 258 and jammed there.
  • Fig. 25 shows the fastening device 258 formed according to an alternative embodiment of FIG Fig. 2 Hand tool 100 of Fig. 1 . wherein the projections 253 of the fastening device 258 are formed as undercuts, which with a coupling element 1211 of Fig. 26 to train a bayonet connection.
  • the first holding unit 310 of Fig. 26 in the direction of an arrow 1222, or in the longitudinal direction of the fastening device 258, and preferably by means of a rotational movement in the circumferential direction, the coupling elements 1211 are clamped in the direction of an arrow 1221 under the undercut 253 of the fastening device 258.
  • Fig. 26 shows the with the fastening device 258 of Fig. 25 a bayonet connection forming first holding unit 310 of Fig. 3 to Fig. 9 , which is formed according to another embodiment.
  • the first holding unit 310 has the coupling contour 1210 with the coupling elements 1211 on its front side facing the handheld power tool 100.
  • the coupling elements 1210 in this case have an illustratively and preferably rectangular base body 1225 with a recess 1227, wherein the coupling elements 1210 for arrangement on undercuts of the fastening device 258 of Fig. 25 are formed.
  • Fig. 27 shows the coupling element 1210 of Fig. 26 in the direction of an arrow 1226 or viewed from below. It clarifies Fig. 27 an exemplary embodiment of the recess 1227 of the coupling element 1210, and the preferably rectangular base body 1225. It should be noted that the main body 1225 of the coupling element 1210 may also have a different shape.
  • FIGS. 23 to 27 shown embodiments of an attachment of the holding device 300, and the first holding unit 310, to the power tool 100 of Fig. 1 , or the fastening device 258, also with the embodiments of the attachment of the holding device 300 to the output shaft 224 of 4 to FIG. 22 can be combined.
  • a storage is necessary because when attached to the fastening device 258, the holding device 300 can not rotate with the output shaft 224.
  • the individual embodiments of the attachment of the holding device 300 to the output shaft 224 can be combined with each other.
  • Fig. 28 shows the holding device 300 with the first and second holding unit 310, 320 of Fig. 4 with the holding part 490 formed as a snap hook 414.
  • the second holding unit 320 is assigned a depth stop 1230 which adjusts a desired screw-in depth of the screw element 270 arranged on the holding device 300.
  • the depth stop 1230 also makes it possible to screw in a screw element 270 deeper than the surface of a workpiece. This is typically the case with a wooden workpiece.
  • a screwing depth adjustment is adjustable via a thread 1233, 1234 formed between the first and second holding units 310, 320.
  • the first holding unit 310 is preferably assigned an internal thread 1234 and the second holding unit 320 is associated with an external thread 1233.
  • the second holding unit 320 preferably has a receptacle 1231 with a fixing element 1232 arranged therein.
  • the fixing element 1232 is preferably designed as a rubber ring. This preferably increases the friction when turning the thread 1233, 1234, so that accidental adjustment of the set screwing can be prevented.
  • Fig. 29 shows the output shaft 224 of Fig. 2 with a depth stop 1230 according to another embodiment.
  • the holding device 300 preferably the first holding unit 310, a guide groove 1242 with latching positions formed therein, wherein in the guide groove 1242 of the second holding unit 320 associated latching pin 1244 is arranged.
  • Fig. 30 shows the holding device 300 with the depth stop 1230 of Fig. 29 , It clarifies Fig. 30
  • the second holding unit 320 has an actuating element 1249 for setting the desired screw-in depth.
  • a detent spring 1247 assigned to the second holding unit 320 engages with a toothing 1246 assigned to the first holding unit 310.
  • the actuating element 1249 By applying the actuating element 1249, the detent spring 1247 is released and by turning the second holding unit 320, a desired screw-in depth can be set.
  • the second holding unit 320 is displaced toward the rearward position until the detent pin 1244 abuts the guide groove 1242, thereby defining the depth stop 1230.
  • Fig. 31 shows the teeth 1246 of the first holding unit 310 with the detent spring 1247 of the second holding unit 320 of Fig. 30 in the direction of an arrow 1241 of Fig. 30 viewed, or viewed from the front. It clarifies Fig. 31 the arrangement of the detent spring 1247 in the toothing 1246.
  • the detent spring 1247 has for this purpose a mating contour 1248 of the toothing 1246.
  • Fig. 32 shows the holding device 300 of Fig. 30 with the second holding unit 320 associated with actuators 612, in associated recesses 622 of the first holding unit 310 of Fig. 7 can be arranged in the working position.
  • the recesses 622 are preferably formed between two adjacent webs 1320.
  • the webs 1320 preferably each have the guide section 1324 facing the recesses 622, and the actuating elements 612 preferably have a guide groove 1322 on their sides facing the webs 1320.
  • the guide portions 1324 and the guide grooves 1322 are formed for easy or sliding displacement.
  • Fig. 33 shows the holding device 300 of Fig. 32 with the screw 270. It illustrates Fig. 33 the webs 1320 with the guide portions 1324 and the guide grooves 1322 of the actuators 612th
  • Fig. 34 shows the holding device 300 of FIGS. 32 and 33 in the parking position. It clarifies Fig. 34 an axial extension 1312 of the second holding unit 320. The axial extension 1312 is formed in the direction of the first holding unit 310.
  • Fig. 35 shows the holding device 300 of FIGS. 32 to 34 in the working position. It clarifies Fig. 35 the arrangement of the holding device 300 on the output shaft 224 of Fig. 2 with the latching hooks 414 designed as holding parts 490 of the first holding unit 310 and the second holding unit 320 associated with actuators 612. In addition clarifies Fig. 35 the axial extension 1312, at the output shaft 224 facing the end of the limiting element 438 is arranged. The limiting element 438 is in the in Fig. 35 shown working position on the Anstehkante 418 of the conical portion 411 of the first holding unit 310 associated with Anstehelement 1338.
  • the first holding unit 310 For guiding the axial extension 1312 from the working position into the parking position, the first holding unit 310 has a guide track 1339 at its guide sections 1324. At its Innate the axial extension 1312 has a receptacle 1334 for the arrangement of the spring element 410.
  • Fig. 36 shows the holding device 300 of FIGS. 32 to 35 .
  • the magnet 330 is arranged in the receptacle 436 of the second holding unit 320.
  • the spring element 410 is arranged between the first and second holding units 310, 320.
  • the first and second holding unit 310, 320 are arranged against each other, wherein the axial extension 1312 of the second holding unit 320 is disposed on the respective associated guideway 1339.
  • the axial extension 1312 is preferably resilient, so that it can be acted upon radially inwardly and can be arranged so in the guideway 1339, that it is illustratively arranged to the right of the Anstehelement 1338 of the first holding unit 310, or in the in Fig. 35 shown Anstehposition can be arranged.
  • Fig. 37 shows the first holding unit 310 of FIGS. 32 to 35 , It clarifies Fig. 37 the webs 1320 with the guide portions 1324 and the guideways 1339. Further shows Fig. 37 the embodiment of the first holding unit 310 with illustratively four webs 1320, which are merely exemplary. Thus, the first holding unit 310 may also have more or fewer webs 1320, wherein a number of the webs 1320 corresponds to the number of axial extensions 1312 of the second holding unit 320.
  • FIG. 37 shows Fig. 37 the illustratively four snap hooks 414, wherein preferably two snap hooks 414 are formed diametrically opposite one another.
  • the snap hooks 414 are distributed uniformly in the circumferential direction of the first holding unit 310.
  • the snap hooks 414 may be unevenly distributed in the circumferential direction of the first holding unit 310.
  • the configuration of the first holding unit 310 with four snap-action hooks 414 has only exemplary character and is not to be seen as limiting the invention.
  • the first holding unit 310 also have fewer or more than four snap hooks 414.
  • the snap hooks 414 are formed as segments, however, the holding part 490 designed as a snap hook 414 can also be designed as a single ring.
  • Fig. 38 shows the first holding unit 310 of Fig. 37 , It clarifies Fig. 38 the webs 1320 and the recesses 622 for the arrangement of the axial extensions 1312 of the second holding unit 320.
  • Fig. 39 shows the first holding unit 310 of Fig. 38 on the output shaft 224 of Fig. 2
  • the annular base body 412 of the first holding unit 310 is arranged on the receiving area 289 of the output shaft 224 and lies in the direction of the power tool 100 on the annular web 812.
  • the snap-action hooks 414 preferably form the force and / or positive connection with the shoulder 284 assigned to the output shaft 224.
  • Fig. 40 shows the holding device 300 of FIGS. 32 to 39 in the working position with a further arrangement of the second holding unit 320 associated magnet 330.
  • the receptacle 436 is preferably arranged for the arrangement of the magnet 330 from a free axial end 403 of the second holding unit 320 spaced.
  • the second holding unit 320 is molded onto the magnet 330 by means of plastic injection molding.
  • the magnet 330 may also be crimped in some other way.
  • a holding section 1434 is arranged at the free axial end 403 of the second holding unit 320, so that the magnet 330 is arranged between the holding section 434 and the holding section 1434 and fixed by the latter.
  • Fig. 41 shows the holding device 300 of Fig. 40 with the screwdriver bit 170 and the screw 270 in the working position.
  • the side 830 of the screw element 270 arranged on the holding device 300 preferably faces the magnet 330 on the side 829 of the magnet 330 facing the screw element 270.
  • the screw 270 at least approximately magnetized and thus held at least in the axial direction 299 of the holding device 300.
  • the magnet 330 is displaced from a free axial end 1398 of the output shaft 224 preferably axially in the direction of the axial end 404 facing the first holding unit 310 such that the magnet 330 comes into contact with the screw element 270.
  • One of the inner receptacle 432 of the second holding unit 320 associated, the first holding unit 310 facing axial end 1399 is arranged spaced apart in the working position of the annular web 284 of the output shaft 224.
  • Fig. 42 shows the holding device 300 of Fig. 41 and preferably clarifies a gap-free arrangement of the screw element 270 on the magnet 330.
  • a screw head 270 of the screw element 270 assigned to the magnet 330 preferably rests against the magnet 330.
  • Fig. 43 shows the holding device of FIGS. 41 and 42 in the parking position.
  • the magnet 330 In the park position, the magnet 330 is displaced axially in the direction of the free axial end 403 of the second holding unit 320 such that the second holding unit 320 releases the screwdriver bit 170.
  • an element 1397 forms a stop surface for the magnet 330 in the parking position.
  • the magnet 330 is designed such that it forms such a strong magnetic connection with the stop surface 1397 that a release of the magnet 330 from the stop surface 1397 due to a spring force of the spring element 410 is prevented. Only applying a user releases the magnet 330 from the abutment surface 1397 and moves the second holding unit 320 into the working position.
  • the free axial end 1398 of the output shaft 224 is formed as a stop surface 1397 for the magnet 330.
  • the element 1397 is formed as a stop surface of the output shaft 224, however, the element 1397 may also be another component that is disposed in the region of the free axial end 1398 of the output shaft 224 or can be arranged on the free axial end 1398 of the output shaft 224.
  • the axial end 1399 of the inner receptacle 432 of the second holding unit 320 facing the first holding unit 310 preferably rests on the annular web 284 of the output shaft 224 in the parking position.
  • the second holding unit 320 is preferably designed such that the magnet 330 without a gap, that is applied directly to the annular web 284. In a concern of the magnet 330 on the annular ridge 284 is preferred no further element of the holding device 300 on the output shaft 224 and / or the first holding unit 310 at.
  • Fig. 44 shows the holding device 300 of Fig. 43
  • the side 830 of the screw element 270 arranged on the holding device 300 which faces the magnet 330, is preferably arranged at a distance from the side 829 of the magnet 330 facing the screw element 270.
  • the screwdriver bit 170 is released and a tool change can take place.
  • the magnet 330 is preferably abutted on the abutment surface 1397 of the output shaft 224 and forms a magnetic connection, so that the holding device 300 remains in the parking position.
  • the magnet 330 preferably holds the holding device 300 in the parking position.
  • an insert tool change can occur in which a user of the holding device 300 does not have to act on the second holding device 320 during the change of the insert tool.
  • Fig. 45 shows the holding device 300 of FIGS. 32 to 44 with an alternative arrangement of the second holding unit 320 associated magnet 330.
  • the receptacle 436 for the arrangement of the magnet 330 is arranged on one of the first holding unit 310 facing the axial end 404 of the second holding unit 320. According to the alternative arrangement of the magnet 330, this is fixed in the receptacle 436 via a clamping sleeve 1440.
  • the clamping sleeve 1440 preferably has a cylindrical base body 1442 with a first end 1441 facing the first holding unit 310 and an axial end 1443 facing the magnet 330. Furthermore, the clamping sleeve 1440 has at least one first clamping element 1446 and at least one second clamping element 1444. Preferably, the at least one first clamping element 1446 is arranged on the inner circumference of the cylindrical main body 1442. In this case, the at least one first clamping element 1446 is designed as an annular collar. Preferably, the at least one first clamping element 1446 is provided at the second end 1443 of the clamping sleeve 1440 and designed to act on the magnet 330 in the receptacle 436.
  • the at least one second clamping element 1444 is preferably arranged at the first end 1441. In this case, the at least one second clamping element 1444 on the outer circumference of the Clamping sleeve 1440 formed. Preferably, the at least one second clamping element 1444 is designed as an annular collar.
  • the second holding unit 320 preferably comprises at least one fixing element 1452.
  • the fixing element 1452 is preferably designed as a receptacle.
  • the at least one fixing element 1452 is designed as an annular groove for arranging the at least one second clamping element 1444 of the clamping sleeve 1440.
  • the at least one fixing element 1452 is arranged on one of the first holding unit 310 facing the end of the inner receptacle 432 of the second holding unit 320.
  • the at least one first clamping element 1446 preferably secures the magnet 330 to the second holding unit 320 and the at least one second clamping element 1444 preferably forms an operative connection with the fixing element 1452.
  • the operative connection is formed as a positive and / or non-positive connection.
  • the magnet 330 preferably projects beyond the receptacle 436 in sections, and the clamping sleeve 1440 has at its second end 1443 a receptacle for the arrangement of the receptacle 436 projecting portion of the magnet 330.
  • the second axial end 1143 of the clamping sleeve bears against a shoulder 1454 which increments the receptacle 436.
  • an axial end 1449 of the magnet 330 facing the second end 1443 of the clamping sleeve 1440 abuts the at least one first clamping element 1446. It should be noted that the magnet 330 can also be acted upon at its axial end 1449 by an end face arranged at the second axial end 1443.
  • Fig. 46 shows the holding device 300 of Fig. 45 , It clarifies Fig. 46
  • the at least one first clamping element 1446 urges the magnet 330 at its axial end 1449 against the formed at the free end 402 holding portion 1434 of the second holding unit 320.
  • the clamping sleeve 1440 is characterized by the operative connection between the at least one second clamping element 1444 of the clamping sleeve 1440 and the fixing element 1452 of the inner receptacle 432 in the inner receptacle 432 fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP18210321.8A 2018-01-24 2018-12-05 Dispositif de maintien pour une machine-outil portative Active EP3517248B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018201081.1A DE102018201081A1 (de) 2018-01-24 2018-01-24 Haltevorrichtung für eine Handwerkzeugmaschine

Publications (2)

Publication Number Publication Date
EP3517248A1 true EP3517248A1 (fr) 2019-07-31
EP3517248B1 EP3517248B1 (fr) 2022-04-27

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2712224A1 (fr) * 1993-11-09 1995-05-19 Lebraut Raymond Machine à prélever et à visser des ensembles vis-plaquettes pour le montage de plaques diverses dans des bâtiments.
US20120240372A1 (en) * 2010-07-06 2012-09-27 Walter Heinrich Nagel, Iii Fastener extraction device
EP2913154A2 (fr) * 2014-02-27 2015-09-02 Black & Decker Inc. Système d'entraînement magnétique nettoyable pour fixations filetées

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564717A (en) * 1995-07-19 1996-10-15 Alberts; Eric Removable adapter for a power-driven screwdriver
US6079716A (en) * 1997-12-12 2000-06-27 Black & Decker Inc. Removable chuck
WO2004106007A1 (fr) * 2003-05-27 2004-12-09 Robert Bosch Tool Corporation Dispositif de maintien et de commande de vis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2712224A1 (fr) * 1993-11-09 1995-05-19 Lebraut Raymond Machine à prélever et à visser des ensembles vis-plaquettes pour le montage de plaques diverses dans des bâtiments.
US20120240372A1 (en) * 2010-07-06 2012-09-27 Walter Heinrich Nagel, Iii Fastener extraction device
EP2913154A2 (fr) * 2014-02-27 2015-09-02 Black & Decker Inc. Système d'entraînement magnétique nettoyable pour fixations filetées

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EP3517248B1 (fr) 2022-04-27
DE102018201081A1 (de) 2019-07-25

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