EP1228841A1 - Tournevis éléctrique avec limiteur de couple - Google Patents

Tournevis éléctrique avec limiteur de couple Download PDF

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Publication number
EP1228841A1
EP1228841A1 EP02405016A EP02405016A EP1228841A1 EP 1228841 A1 EP1228841 A1 EP 1228841A1 EP 02405016 A EP02405016 A EP 02405016A EP 02405016 A EP02405016 A EP 02405016A EP 1228841 A1 EP1228841 A1 EP 1228841A1
Authority
EP
European Patent Office
Prior art keywords
housing
screwing
screwing device
work spindle
drive 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.)
Withdrawn
Application number
EP02405016A
Other languages
German (de)
English (en)
Inventor
Gerd Daubinger
Egon Königbauer
Lutz Köllner
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP1228841A1 publication Critical patent/EP1228841A1/fr
Withdrawn legal-status Critical Current

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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
    • B25B23/0064—Means for adjusting screwing depth
    • 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
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B25B23/045—Arrangements for handling screws or nuts for feeding screws or nuts using disposable strips or discs carrying the screws or nuts
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers

Definitions

  • the invention relates to a screwdriver with a removable screwing device according to the preamble of claim 1.
  • EP-0 058 986 is a screwdriver with a removable screwing device known, can be processed with the strip-shaped magazine screws.
  • the screwdriver has a housing, a working spindle mounted in the housing, one in the housing arranged electric drive motor with a drive shaft, a handle and an operating switch.
  • the handle is located against the direction of rotation directed end area of the housing.
  • the actuation switch is in the handle integrated.
  • the work spindle is connected to the drive shaft of the Drive motor.
  • One that can be connected to the head of the screws to be screwed in Screwing tool is in a rotationally fixed connection with the work spindle.
  • the end region of the housing on the direction of rotation is cylindrical Provide an area with an external thread. This recording area serves to receive and guide the screwing device with that in the screwing device guided, strip-shaped magazine screws opposite the insertion tool can be aligned coaxially one after the other.
  • a uniform torque is delivered from the drive motor to the work spindle. Therefore, the same screws can be used with this known screwdriver differently firm substrate materials cannot be screwed in uniformly deep. Especially with very solid substrate materials it can happen that Torque is not sufficient to fully screw in the screw, so that the head of the Screw comes to lie spaced from the surface of the base material. On the other hand, the torque can be sufficient for very soft substrate materials be large to easily screw in the screw up to the head and after the Attachment of the head to the surface of the substrate material damage to the To cause screw, in which, for example, the thread on the screw or in The surface is damaged or the head of the screw is torn off.
  • the invention has for its object a screwdriver with a simple and quick removable screw device to create, with the several screws that related are uniformly designed for their geometry, in such a way in different solid substrate materials can be screwed in that on the one hand the heads of the screw on the Lay on the surface of the base material or the free face of the heads and the Surface of the background material lie in one plane, on the other one Damage to the screws is prevented.
  • the screwdriver should be provided with a depth stop, which makes it possible to insert the screws in this way Screw in base material that the heads in a predetermined, wanted Are spaced from the surface of the substrate material.
  • the invention has for its object a screwdriver with a removable To create screwing device with which a variety of screws in a very can be screwed into the base material for a short time.
  • the size of the torque acting on the screws by the operator change quickly and easily without any time-consuming work on the screwdriver Conversion work must be done.
  • the torque cut-off device is expediently from one between the Drive spindle and the screwing tool arranged mechanical overload clutch educated.
  • the overload clutch is, for example, between the Drive shaft and the work spindle and has two coaxially arranged, in Coupling halves rotatable in the circumferential direction, several between the coupling halves arranged balls and a spring assembly interacting with a coupling half on.
  • a first coupling half is rotatable and axially displaceable on the work spindle stored and has a rotational connection with the drive shaft.
  • One on the direction of rotation Second coupling half closer to the end area of the housing is also axially displaceable relative to the work spindle but connected to it in a rotationally fixed manner.
  • Both coupling halves have on their mutually facing end faces several hemispherical depressions, which serve to hold the balls. at Exceeding a torque, these balls push the second coupling half in Direction of rotation against the spring assembly until the two coupling halves align can twist to each other.
  • the force with which the spring assembly counteracts the direction of rotation presses against the second coupling half is in the circumferential direction with the help of a adjustable collar changeable. The lower the force is on the second Coupling half acts, the lower the torque applied by the drive shaft the work wave is transferable.
  • a particularly short overall length of the screwing device with screwing device can preferably be used can be achieved by the torque switch-off device from a Control electronics is formed, which when a certain torque is reached Power supply is interrupted.
  • control electronics is advantageously arranged within the housing.
  • the arrangement of the control electronics takes place in the handle itself or in the Near the handle instead.
  • This resistance is preferably with an adjusting element accessible outside the housing can be changed so that the adjustment the torque from the operator with at least one finger can be done quickly and easily.
  • the control electronics are connected to the actuation switch, for example activation of the control electronics only after restarting the electric drive motor can be done.
  • the working spindle mounted in the housing against the direction of rotation against the force of a spring in a working position in which one between the Drive shaft and the work spindle arranged coupling the drive shaft and the The work spindle is connected to each other in a rotationally locking manner.
  • This clutch has two Claw-equipped coupling parts and one arranged between the two coupling parts Compression spring on.
  • This compression spring is in the working position of the work spindle pressed together and the claws of both coupling parts engage positively each other. In an initial position of the work spindle, the compression spring is relieved and there is no positive connection between the two coupling parts.
  • a first coupling part is rotationally connected to the work spindle and a second coupling part that is rotatably and axially displaceable on the work spindle is in a rotationally locked connection with the drive shaft.
  • the desired screw-in depth can be achieved, for example, using a on the base body the screw device arranged and a cooperating with this Stop on the guide body can be adjusted.
  • the screwing depth for example, with a connection adjustable between the housing and the screw device, in which the axial Distance between the housing and the screw device is adjustable.
  • This battery pack has that Advantage that the degree of freedom compared to a screwdriver with an external Power supply is connected, is larger.
  • the screwing device shown in FIGS. 1 and 2 has a housing 1, 31, one laterally from the housing 1, 31 protruding handle 2, 32 arranged in the handle 2, 32 Actuation switch 3, 33 and an electrical projecting into the handle 2, 32 Connection cable 4, 34 on.
  • the actuating switch 3 shown in Fig. 1 acts with a from the handle 2 partially protruding rocker switch 15 together.
  • Within the Housing 1, 31 is, for example, an electric drive motor 5, 35 with a central drive shaft 6, 36.
  • Working spindle 7, 37 is rotatably mounted within the housing 1, 31 and has a rotational fit Connection to the drive shaft 6, 36.
  • the housing 1, 31 essentially has one cylindrical receiving area 8, 38, that of several, from each other spaced longitudinal ribs 9, 39 is surrounded.
  • These longitudinal ribs 9, 39 extend parallel to the direction of rotation over part of the total length of this receiving area 8, 38.
  • the direction of rotation, Free end of the receiving area 8, 38 is in the direction of rotation by a screwing tool 11, 41 protrudes, the rotationally fixed with the work spindle 7, 37 of the screwing device interacts.
  • the receiving area 8, 38 serves to receive and guide a screw device 18, 48, a base body 19, 49, a guide body 20, 50 and a Magazine 21, 51 projecting laterally from the guide body 20, 50.
  • One of the End area facing away from the direction of rotation is provided with a receiving bore 25, 55, the one receiving geometry 8, 38 of the housing 1, 31 coordinated having. Find the longitudinal ribs 9, 39 of the receiving area 8, 38 Receiving in corresponding recesses in the wall of the receiving bore 25, 55th
  • the base body 19, 49 is connected to the recesses in the direction of rotation at least two bores 22, 52 extending perpendicular to the direction of rotation, in each of which a ball 24. 54, a compression spring 23, 53 and a closure element Find admission.
  • the ball 24, 54 is used for the axial fixing of the Base body 19, 39 on the receiving area 8, 38 of the housing 1, 31. Starting extends from the receiving bore 25, 55 in the base body 19, 39, parallel to the direction of insertion, a central through hole through which the insertion tool 11, 41 protrudes.
  • the spring-loaded balls 24, 54 allow quick removal of the Screwing device from the receiving area 8, 38 of the housing 1, 31.
  • the guide body 20, 50 projects partially into the base body 19, 49 and is opposite this can be moved against the direction of rotation against the force of a spring. Laterally from A magazine 21, 51 with a not shown protrudes from the guide body 19, 49 Transport channel. This transport channel is used to accommodate and guide several successively arranged screws 27, 57, which together with a, for example formed from plastic, flat strips 26, 56 form a screw magazine.
  • the work spindle 7, 37 comes in a working position in which the claws of both coupling parts engage in one another in a rotationally locking manner.
  • the rotational connection remains that way long until an end area of the screwing device on the direction of rotation opens the surface of the substrate comes to rest.
  • the desired screw-in depth can be obtained using a the base body 19 arranged screw 29 and a cooperating with this Stop 30 can be set on the guide body 20.
  • Set screw 29 and the stop 30 is the screwing depth, for example, with a Connection between the housing 1 and the screw device adjustable at the axial distance between the housing and the screwing device is adjustable.
  • the screwdriver which is shown in Fig. 1, has a torque switch-off device in the form of control electronics 12, by means of which the electric drive motor consumed current is limited. That for the interruption of the power supply
  • the relevant torque is connected to the control electronics 12 standing, infinitely adjustable resistance adjustable. This resistance interacts with an actuating element 13 which is arranged in the region of the handle 2 is.
  • the control electronics 12 are connected via an electrical connecting line 14 with the electric drive motor 5. If the control electronics 12 for example can be activated with the operating switch, the control electronics is above the electrical connecting lines 16, 17 with the operating switch 3 and electric drive motor 5 in connection. 2 has one Mechanical torque cut-off device 42, not shown in more detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP02405016A 2001-01-26 2002-01-14 Tournevis éléctrique avec limiteur de couple Withdrawn EP1228841A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10103544 2001-01-26
DE10103544A DE10103544A1 (de) 2001-01-26 2001-01-26 Schraubgerät

Publications (1)

Publication Number Publication Date
EP1228841A1 true EP1228841A1 (fr) 2002-08-07

Family

ID=7671855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405016A Withdrawn EP1228841A1 (fr) 2001-01-26 2002-01-14 Tournevis éléctrique avec limiteur de couple

Country Status (4)

Country Link
US (1) US20020100347A1 (fr)
EP (1) EP1228841A1 (fr)
JP (1) JP2002273668A (fr)
DE (1) DE10103544A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3050675A1 (fr) * 2013-03-14 2016-08-03 Black & Decker Inc. Embout nasal et chargeur pour visseuse électrique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7331406B2 (en) 2004-06-21 2008-02-19 Duraspin Products Llc Apparatus for controlling a fastener driving tool, with user-adjustable torque limiting control
US20050279517A1 (en) * 2004-06-21 2005-12-22 Hoffman William H Screw driving apparatus with attachable and detachable nose sub-assembly for use with single-feed screws or for use with automatic-feed collated screws
US7493839B2 (en) 2005-02-25 2009-02-24 Duraspin Products Llc Portable screw driving tool with collapsible front end
TWM286750U (en) * 2005-09-06 2006-02-01 Mobiletron Electronics Co Ltd Quick assembling/disassembling apparatus between power screwdriver tool and automatic screw feeding mechanism
US8269612B2 (en) 2008-07-10 2012-09-18 Black & Decker Inc. Communication protocol for remotely controlled laser devices
US8267192B2 (en) 2009-02-24 2012-09-18 Black & Decker Inc. Ergonomic handle for power tool
USD609544S1 (en) 2009-02-24 2010-02-09 Black & Decker, Inc. Drill driver
USD617622S1 (en) 2009-09-30 2010-06-15 Black & Decker Inc. Impact driver
USD626394S1 (en) 2010-02-04 2010-11-02 Black & Decker Inc. Drill
USD646947S1 (en) 2010-08-13 2011-10-18 Black & Decker Inc. Drill
US9908182B2 (en) 2012-01-30 2018-03-06 Black & Decker Inc. Remote programming of a power tool
EP2626571B1 (fr) * 2012-02-08 2019-10-23 Grundfos Holding A/S Bague de serrage dotée d'une limitation de force
US8919456B2 (en) 2012-06-08 2014-12-30 Black & Decker Inc. Fastener setting algorithm for drill driver
DE102014207712A1 (de) * 2013-06-24 2014-12-24 Siemens Aktiengesellschaft Vorrichtung und Verfahren zum Drehen eines Rotors einer Windkraftanlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103286A1 (de) * 1981-01-31 1982-08-12 Kress-elektrik GmbH & Co, Elektromotorenfabrik, 7457 Bisingen Elektrohandwerkzeugmaschine zum schrauben, bohren und eventuell schlagbohren
US4630512A (en) * 1984-09-03 1986-12-23 Hilti Aktiengesellschaft Adjustable motor-operated screw driving device
US4674367A (en) * 1983-07-15 1987-06-23 Ejot Eberhard Jaeger Gmbh & Co. Kg Apparatus for inserting and removing screws
US5101697A (en) * 1990-03-26 1992-04-07 Plenum Corporation Drywall screw dispensing and driving gun
US5890405A (en) * 1996-09-11 1999-04-06 Becker; Burkhard Automated screw driving device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103286A1 (de) * 1981-01-31 1982-08-12 Kress-elektrik GmbH & Co, Elektromotorenfabrik, 7457 Bisingen Elektrohandwerkzeugmaschine zum schrauben, bohren und eventuell schlagbohren
US4674367A (en) * 1983-07-15 1987-06-23 Ejot Eberhard Jaeger Gmbh & Co. Kg Apparatus for inserting and removing screws
US4630512A (en) * 1984-09-03 1986-12-23 Hilti Aktiengesellschaft Adjustable motor-operated screw driving device
US5101697A (en) * 1990-03-26 1992-04-07 Plenum Corporation Drywall screw dispensing and driving gun
US5890405A (en) * 1996-09-11 1999-04-06 Becker; Burkhard Automated screw driving device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3050675A1 (fr) * 2013-03-14 2016-08-03 Black & Decker Inc. Embout nasal et chargeur pour visseuse électrique
EP2789426B1 (fr) * 2013-03-14 2017-04-19 Black & Decker Inc. Magasin pour visseuse

Also Published As

Publication number Publication date
US20020100347A1 (en) 2002-08-01
JP2002273668A (ja) 2002-09-25
DE10103544A1 (de) 2002-08-01

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