EP2599594B1 - Machine-outil manuelle dotée d'un magasin de changement d'outil en forme de tambour - Google Patents

Machine-outil manuelle dotée d'un magasin de changement d'outil en forme de tambour Download PDF

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Publication number
EP2599594B1
EP2599594B1 EP12192186.0A EP12192186A EP2599594B1 EP 2599594 B1 EP2599594 B1 EP 2599594B1 EP 12192186 A EP12192186 A EP 12192186A EP 2599594 B1 EP2599594 B1 EP 2599594B1
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EP
European Patent Office
Prior art keywords
tool
spring arm
portable power
manual switch
sliding element
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.)
Active
Application number
EP12192186.0A
Other languages
German (de)
English (en)
Other versions
EP2599594A3 (fr
EP2599594A2 (fr
Inventor
Attila Nagy
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 EP2599594A2 publication Critical patent/EP2599594A2/fr
Publication of EP2599594A3 publication Critical patent/EP2599594A3/fr
Application granted granted Critical
Publication of EP2599594B1 publication Critical patent/EP2599594B1/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
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/029—Construction of casings, bodies or handles with storage compartments

Definitions

  • the invention relates to a hand tool according to the preamble of claim 1 with a trained for receiving a tool tool holder, which is arranged on an associated tool housing in which a drum-like tool change magazine with at least one tool chamber for storing the tool is provided, aligned with the tool holder alignment is, wherein a movable in the longitudinal direction of the tool holder sliding element for pushing over the tool from the tool chamber is provided in the aligned tool holder or from the tool holder in the aligned tool chamber.
  • Such a hand tool machine which has a displaceably arranged in an associated tool housing, bar-shaped sliding element for pushing a tool from a corresponding tool chamber of a rotatable about an associated axis tool change magazine into a tool holder or from the tool holder into the tool chamber.
  • This sliding element is rigidly connected to a trained in the manner of a slider handle which is manually operated by a user of the power tool and this passes through an opening provided on the tool housing, elongated opening.
  • a disadvantage of the prior art is that the sliding element, depending on how far the user each actuates or moves the handle, a plurality of different intermediate positions between a tool change position in which the tool change magazine to the associated Rotation axis is rotatable and the tool is arranged in the tool chamber, or a tool operating position in which rotation of the tool changing magazine is prevented by the sliding element and the tool is arranged in the tool holder can take.
  • these intermediate positions functionality and operational safety of the power tool may be limited.
  • An object of the invention is therefore to provide a new hand tool with a drum-like tool change magazine and a sliding element for pushing a tool from a tool chamber of the tool change magazine into the tool holder or from the tool holder in the tool chamber, which has improved functionality and increased reliability.
  • a hand tool with a trained for receiving a tool tool holder, which is disposed on an associated tool housing in which a drum-like tool change magazine is provided with at least one tool chamber for storing the tool, aligned with the tool holder alignment is.
  • a sliding element which can be moved in the longitudinal direction of the tool holder is provided for pushing over the tool from the tool chamber into the aligned tool holder or out of the tool holder into the aligned tool chamber.
  • the sliding element is coupled to an actuatable manual switch which has a resilient blocking element.
  • This is adapted to the sliding element in a tool change position in which the tool changer magazine is rotatable about an associated axis of rotation and the tool is arranged in the tool chamber, or a tool operating position in which rotation of the tool changer magazine is prevented by the sliding element and the tool in the Tool holder is arranged to releasably block.
  • the invention thus enables the provision of a hand tool machine, in which by releasably blocking the sliding element in a tool change position or a tool operating position in a simple manner at least a comparatively high reliability is possible.
  • the blocking element has at least one spring arm which is provided with an associated latching pawl.
  • At least one guide cam associated with the at least one spring arm is provided in the tool housing, wherein the spring arm is resiliently displaceable along the guide cam.
  • the guide curve is preferably fixedly connected to the tool housing.
  • the guide cam has a first and a second stop, between which the latch of the spring arm is slidably displaceable, wherein the first and second stop are spaced apart in the longitudinal direction of the spring arm.
  • the guide curve on a arranged between the first and second stop trigger point, wherein the spring arm is adapted to trigger when the trigger point is exceeded by the latch an automatic displacement of the manual switch.
  • the invention thus enables the provision of a hand tool with improved functionality, in which a displacement of the sliding element into undesired intermediate positions can be reliably and reliably prevented by an automatic displacement of the manual switch.
  • the spring arm is preferably designed to effect when the trigger point is exceeded by the latch in the direction of the first stop an automatic displacement of the manual switch in one of the tool change position associated, first axial end position.
  • the spring arm is adapted to cause when the trigger point is exceeded by the latch in the direction of the second stop an automatic displacement of the manual switch in one of the tool operating position associated, second axial end position.
  • the manual switch has a base plate on which the blocking element is formed.
  • the invention thus enables a robust and stable coupling of the blocking element with the handset.
  • a guide element for guiding the sliding element is preferably formed on the base plate.
  • the sliding element can be performed safely and reliably on the handset in a simple manner.
  • Fig. 1 shows by way of example a hand-held, motor-driven machine tool 100, which is also referred to as "hand tool” and has a tool housing 124 in which a drum-like tool change magazine 102 is rotatably arranged about a rotational axis 103 with a plurality of tool chambers.
  • a hand-held, motor-driven machine tool 100 which is also referred to as "hand tool” and has a tool housing 124 in which a drum-like tool change magazine 102 is rotatably arranged about a rotational axis 103 with a plurality of tool chambers.
  • application tools may be arranged, wherein z. B. are provided in all tool chambers different application tools.
  • Fig. 1 only a single tool chamber indicated by the reference numeral 199.
  • the hand tool 100 is illustratively designed in the manner of a so-called "bit screwdriver” for handling so-called “screwdriver bits”. It should be noted, however, that the present invention is not limited to such bit screwdrivers, but rather can be applied to all machine tools in which a rotatable about a longitudinal axis, drum-like changing magazine application, regardless of whether in the removable magazine screwdriver bits or other removable objects are kept or whether the machine tool is hand-held or not.
  • a tool receptacle 104 for receiving an insert tool is arranged on the tool housing 124.
  • an insert tool 101 which is also referred to below as the "tool” 101, is arranged in the tool receptacle 104.
  • the tool holder 104 for driving the tool 101 is coupled via a gear toothing 106 to an output shaft 119 of a gear 112, which is arranged, for example, in a housing 114, on or on which the tool changer magazine 102 is rotatably supported at least in sections.
  • the output shaft 119 is z.
  • Example by a motor shaft 177 of a coupled to the transmission 112 drive motor 107 in rotation, which is arranged for example in an associated motor housing 117, wherein the motor housing 117 and the gear housing 114 are arranged and fixed in the tool housing 124 by way of example.
  • the tool holder 104 has a z. B. provided with a polygonal profile interior shot 105, in which the z. B. provided with a polygonal outer coupling 118 tool 101 from the tool chamber 199 for rotationally fixed connection with the tool holder 104 can be inserted.
  • a slide mechanism 110 is provided to push the tool 101 out of the tool chamber 199 into the inner receptacle 105 of the tool receptacle 104 and out of the inner receptacle 105 into the tool chamber 199.
  • adjusting means for rotating the tool changing magazine 102 about the rotation axis 103 describes, which allow an alignment of the tool chamber 199 with the tool holder 104.
  • the sliding mechanism 110 on a sliding element 150 which is exemplified in the manner of a provided with a toothing 170 slide rod 160 whose 101 facing the tool axial end for magnetic connection with the tool 101 z. B. is magnetically formed.
  • the on the push bar 160 designed toothing 170 cooperates illustratively with at least one first gear 180, which forms a transmission 185 with at least one second gear 190, wherein the gears 180, 190, for example, have different diameters.
  • the second gear 190 cooperates with a toothing 132 of at least one stationary linear guide 130 provided in the tool housing 124.
  • the sliding element 150 is coupled to a hand switch 120 designed in the manner of a slide switch, which has a manually operable handle 122, which is connected to an associated base plate 121, on which the gears 180, 190 are mounted on the one hand in a rotationally fixed manner to one another and on the other hand in a rotationally movable manner below at Fig. 2 and 3 described.
  • the base plate 121 closes an opening 129 provided on the tool housing 124, wherein the area between the base plate 121 and the opening 129 is preferably sealed.
  • at least one guide element 195 for guiding the sliding element 150 is formed on the base plate 121.
  • the handle 122 may be integrally connected to the base plate 121, for. B. as a one-piece plastic component, or formed on this or fixed in any way at this.
  • the handle 122 engages in the region of the opening 129 through the tool housing 124 in order to allow gripping of the handle 122 and thus actuation of the manual switch 120 by a user of the handheld power tool 100.
  • the manual switch 120 has a resilient blocking element 250 which is designed to move the sliding element 150 in a tool changing position in which the tool changer magazine 102 is rotatable about the axis of rotation 103 and the tool 101 is arranged in the tool chamber 199 or in one Tool operating position in which a rotation of the tool changing magazine 102 is suppressed by the sliding member 150 and the tool 101 is disposed in the tool holder 104 to releasably block.
  • the blocking element 250 is formed on the base plate 121 of the manual switch 120, wherein the blocking element 250 and the base plate 121 are preferably formed in one piece.
  • the blocking element 250 may be formed on or attached to the base plate 121 in any manner.
  • the blocking element 250 has, for example, at least one spring arm 230, which is provided with an associated latching pawl 232.
  • This spring arm 230 is illustratively resiliently displaceable along at least one associated guide cam 276, which is provided in the tool housing 124 and is fixedly connected thereto.
  • the sliding mechanism 110 can be actuated by a displacement of the handle 122, in particular a linear displacement, parallel to the longitudinal direction 108 of the tool holder 104, as indicated by an arrow 131 and an arrow 133.
  • the handle 122 is shown by way of example in a first axial end position assigned to the tool changing position of the sliding element 150, in which the push rod 160 is in a-in Fig. 1 - Rear axial end position is.
  • the handle 122 is displaced in the direction of the arrow 131.
  • Fig. 2 shows the pushing mechanism 110 of FIG Fig. 1 with the in the direction of arrows 131, 133 of Fig. 1 slidable sliding element 150 in the tool operating position.
  • the stationary in the tool housing 124 of Fig. 1 arranged on the base plate 121 guide member 195 for guiding the sliding element 150 has by way of example two approximately mutually parallel guide webs 295, 297, between which the Push rod 160 is guided.
  • a longitudinal side of the base plate 121 of the blocking element 250 associated spring arm 230 with the latch 232 of Fig. 1 formed, which cooperates with the guide cam 276, and a first bolt-like pivot joint 280 b, to which the first and second gear 180, 190 of Fig. 1 are rotatably mounted, which cooperate with the stationary linear guide 130.
  • a detent pawl 231 On an opposite longitudinal side of the base plate 121 is a The additional spring arm 125 associated with the blocking element 250 is formed with a detent pawl 231, which cooperates with a further guide cam 126, as well as a second bolt-like swivel joint 280a which is at least approximately opposite the first swivel joint 280b.
  • a further first and second gear 180a, 190a are rotatably mounted, which cooperate with another, provided with a toothing 142 linear guide 140.
  • the linear guide 140 and the guide cam 126 are preferably stationary in the tool housing 124 of Fig. 1 arranged and the linear guide 130 and the guide curve 276 are at least approximately mirror-symmetrical to the longitudinal direction 108 of the tool holder 104 of Fig. 1 across from.
  • the gears 180, 180a cooperate with the push rod 160 and engage for this purpose in the toothing 170 a.
  • the push bar 160 illustratively has a z. B. coaxial with the longitudinal direction 108 extending sliding portion 266, on which the toothing 170 is formed.
  • an angled portion 264 In the direction of the arrow 133 of Fig. 1 seen connected to the sliding portion 266 an angled portion 264, to which in turn a guide portion 262 connects.
  • the angled portion 264 serves to block the push bar 160 on the gears 180, 180a in the direction of the arrow 131 in FIG Fig. 2 shown tool operating position of the sliding element 150.
  • the guide portion 262 serves to guide the push rod 160 between the guide webs 295, 297th
  • the guide cam 276 has a first and a second stop 281, 285 and the guide cam 126 has a first and a second stop 226, 229.
  • the latch 232 of the spring arm 230 is slidably displaceable and between the stops 226, 229, the latch 231 of the spring arm 125.
  • the stops 281, 285 or 226, 229 respectively in the longitudinal direction of the spring arms 230 and 125th spaced apart.
  • the guide cam 276 has a release point 283 arranged between the stops 281, 285 and the guide cam 126 has a release point 221 arranged between the stops 226, 229.
  • the guide cam 276 is formed in the direction of the arrow 131 at the first stop 281 to the trigger point 283 one by a predetermined Angle in the direction of the opposite guide curve 126 angled, first edge 282 connects.
  • the second stop 285, up to the triggering point 283 is adjoined by a second flank 284 which is angled at the same angle in the direction of the opposing guide cam 126 and crosses the first flank 282 at the triggering point 283.
  • the guide cam 126 has a first in the direction of the guide cam 276 angled edge 227 and a second in the direction of the guide cam 276 angled edge 228, which intersect at the trigger point 221.
  • the first angled flanks 282, 227 have a length 298 in the longitudinal direction of the spring arms 230 and 125, and the second angled flanks 284, 228 have a length 299.
  • the spring arms 230, 125 are preferably designed to engage when the trigger points 283 and 221 by the pawls 232 and 231 trigger an automatic displacement of the manual switch 120, as described below.
  • the configuration of the predetermined angle and the lengths 298, 299 can be specified in an application-specific manner.
  • the lengths 298, 299 can be chosen to be different lengths, which would result in different angles to the tool change position or the tool operating position of the power tool 100 of Fig. 1 to prefer.
  • the slide-over mechanism 110 by a displacement of the manual switch 120 and thus the base plate 121, in particular a linear displacement, starting from the in Fig. 1 shown tool change position in the direction of arrow 131 is actuated.
  • the manual switch 120 is illustratively moved into an axial end position assigned to the tool operating position of the sliding element 150, in which the push rod 160 in the in Fig. 2 shown, front axial end position.
  • the pushing member 150 is releasably blocked by the blocking member 250.
  • the tool change position of the sliding element 150 corresponding rear axial end position can be effected, in which the sliding element 150 is also releasably blocked by the blocking element 250.
  • the slip mechanism 110 and the blocking element 250 is described by way of example in the case of such a linear displacement of the manual switch 120 in the direction of the arrow 133.
  • a desired path translation can be predetermined, so that a comparatively short displacement of the base plate 121 in the direction of the arrow 133, a comparatively large displacement of the push rod 160 can be achieved.
  • the manual switch 120 by an interaction of the spring arms 230, 125 with the associated guide curves 276, 126 either in the in Fig. 2 shown or in the Fig. 1 axial end position shown is, so that the sliding element 150 is either in the tool operating position or the tool change position and thus corresponding intermediate positions can be efficiently prevented. Since the manual switch 120 is automatically moved in each case in one or the other axial end position, it can be considered there as each releasably blocked.
  • Fig. 3 shows the hand switch 120 of Fig. 1 and 2 to illustrate the illustratively fork-shaped blocking element 250 with the spring arms 230, 125. Further clarifies Fig. 3 the handle 122 formed on the base plate 121, the guide element 195 with the guide webs 295, 297, as well as the rotatably mounted on the pivot 280a gears 180a, 190a.
  • Fig. 4 shows a plan view of the power tool 100 of Fig. 1 with illustratively cut tool housing 124 to illustrate an exemplary embodiment of the Fig. 2 described components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Drilling And Boring (AREA)

Claims (8)

  1. Machine-outil manuelle (100) comprenant un logement d'outil (104) réalisé pour recevoir un outil (101), lequel logement d'outil est disposé sur un boîtier d'outil associé (124) dans lequel est prévu un magasin de remplacement d'outil de type tambour (102) avec au moins une chambre d'outil (199) pour stocker l'outil (101), laquelle peut être orientée en alignement avec le logement d'outil (104), un élément de transfert (150) pouvant être déplacé dans la direction longitudinale (108) du logement d'outil (104) étant prévu pour transporter l'outil (101) hors de la chambre d'outil (199) dans le logement d'outil (104) orienté en alignement ou hors du logement d'outil (104) dans la chambre d'outil orientée en alignement (199), l'élément de transfert (150) étant accouplé à un interrupteur manuel commandable (120) qui présente un élément de blocage élastique (250) qui est prévu pour bloquer de manière desserrable l'élément de transfert (150) dans une position de remplacement d'outil dans laquelle le magasin de remplacement d'outil (102) peut tourner autour d'un axe de rotation associé (103) et l'outil (101) est disposé dans la chambre d'outil (199), ou dans une position de fonctionnement d'outil dans laquelle une rotation du magasin de remplacement d'outil (102) par l'élément de transfert (150) est impossible et l'outil (101) est disposé dans le logement d'outil (104), caractérisée en ce que l'élément de blocage (250) présente au moins un bras de ressort (125, 230) qui est pourvu d'un cliquet d'arrêt associé (231, 232), et au moins une came de guidage (126, 276) associée à l'au moins un bras de ressort (125, 230) étant prévue dans le boîtier d'outil (124), le bras de ressort (125, 230) pouvant être déplacé de manière élastique le long de la came de guidage (126, 276).
  2. Machine-outil manuelle selon la revendication 1, caractérisée en ce que la came de guidage (126, 276) est raccordée fixement au boîtier d'outil (124).
  3. Machine-outil manuelle selon la revendication 1 ou 2, caractérisée en ce que la came de guidage (126, 276) présente une première et une deuxième butée (226, 229, 281, 285) entre lesquelles le cliquet d'arrêt (231, 232) du bras de ressort (125, 230) peut être déplacé par coulissement, la première et la deuxième butée (226, 229, 281, 285) étant espacées l'une de l'autre dans la direction longitudinale du bras de ressort (125, 230).
  4. Machine-outil manuelle selon la revendication 3, caractérisée en ce que la came de guidage (126, 276) présente un point de déclenchement (221, 283) disposé entre la première et la deuxième butée (226, 229, 281, 285), le bras élastique (125, 230) étant réalisé de manière à déclencher un déplacement automatique de l'interrupteur manuel (120) lors d'un dépassement du point de déclenchement (221, 283) par le cliquet d'arrêt (231, 232).
  5. Machine-outil manuelle selon la revendication 4, caractérisée en ce que le bras de ressort (125, 230) est réalisé de manière à provoquer un déplacement automatique de l'interrupteur manuel (120) dans une première position axiale de fin de course associée à la position de remplacement d'outil, lors du dépassement du point de déclenchement (221, 283) par le cliquet d'arrêt (231, 232) dans la direction de la première butée (226, 281).
  6. Machine-outil manuelle selon la revendication 4 ou 5, caractérisée en ce que le bras de ressort (125, 230) est réalisé de manière à provoquer un déplacement automatique de l'interrupteur manuel (120) dans une deuxième position axiale de fin de course associée à la position de fonctionnement de l'outil lors du dépassement du point de déclenchement (221, 283) par le cliquet d'arrêt (231, 232) dans la direction de la deuxième butée (229, 285).
  7. Machine-outil manuelle selon l'une quelconque des revendications précédentes, caractérisée en ce que l'interrupteur manuel (120) présente une plaque de base (121) sur laquelle est réalisé l'élément de blocage (250).
  8. Machine-outil manuelle selon la revendication 7, caractérisée en ce qu'un élément de guidage (195) pour guider l'élément de transfert (150) est réalisé au niveau de la plaque de base (121).
EP12192186.0A 2011-11-29 2012-11-12 Machine-outil manuelle dotée d'un magasin de changement d'outil en forme de tambour Active EP2599594B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011087296A DE102011087296A1 (de) 2011-11-29 2011-11-29 Handwerkzeugmaschine mit einem trommelartigen Werkzeugwechselmagazin

Publications (3)

Publication Number Publication Date
EP2599594A2 EP2599594A2 (fr) 2013-06-05
EP2599594A3 EP2599594A3 (fr) 2016-07-13
EP2599594B1 true EP2599594B1 (fr) 2017-09-13

Family

ID=47227538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12192186.0A Active EP2599594B1 (fr) 2011-11-29 2012-11-12 Machine-outil manuelle dotée d'un magasin de changement d'outil en forme de tambour

Country Status (3)

Country Link
EP (1) EP2599594B1 (fr)
CN (1) CN103128716B (fr)
DE (2) DE202011110928U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201653A1 (de) * 2016-02-03 2017-08-03 Robert Bosch Gmbh Handwerkzeugmaschine mit einem Werkzeugwechselmagazin
CN111906730A (zh) * 2019-05-07 2020-11-10 苏州宝时得电动工具有限公司 动力工具

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Publication number Priority date Publication date Assignee Title
US4572038A (en) * 1984-02-08 1986-02-25 Graham Charles H Multi-purpose tool
US5065498A (en) * 1990-04-05 1991-11-19 Mckenzie Archibald M Multiple bit power drill
US5346453A (en) * 1993-08-12 1994-09-13 Rivera Bottzeck Otto Multiple bit power drill
US5597275A (en) * 1995-03-28 1997-01-28 Hogan; Scott H. Tool with changeable working tip
GB9718336D0 (en) * 1997-08-30 1997-11-05 Black & Decker Inc Power tool
US6138537A (en) * 1999-06-04 2000-10-31 Cole; Teresa M. Multi-tip tool
DE19951264A1 (de) * 1999-08-21 2001-04-05 Manfred Schneider Werkzeugmaschine mit vereinfachtem Werkzeugwechsel
DE10148319B4 (de) * 2001-09-21 2006-11-02 Ulrich Lang Handgeführter, motorisch angetriebener Schrauber oder ähnliches Gerät
DE50304290D1 (de) * 2003-08-13 2006-08-31 A & M Electric Tools Gmbh Handwerkzeugmaschine
DE102006059688A1 (de) * 2006-12-18 2008-06-19 Robert Bosch Gmbh Motorisch angetriebene Werkzeugmaschine
CN201055983Y (zh) * 2007-06-19 2008-05-07 曾恺中 转轮式替换起子的推出导正装置
DE102008044273B4 (de) * 2008-12-02 2019-10-02 Robert Bosch Gmbh Handwerkzeugmaschine mit einem schaltbaren Getriebe

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
DE102011087296A1 (de) 2013-05-29
EP2599594A3 (fr) 2016-07-13
EP2599594A2 (fr) 2013-06-05
CN103128716B (zh) 2016-08-24
DE202011110928U1 (de) 2017-05-03
CN103128716A (zh) 2013-06-05

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