EP1414621B1 - Machine rotative se presentant approximativement sous forme de perceuse a main, de perceuse a percussion, de marteau perforateur ou de tourne-vis sans fil - Google Patents

Machine rotative se presentant approximativement sous forme de perceuse a main, de perceuse a percussion, de marteau perforateur ou de tourne-vis sans fil Download PDF

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Publication number
EP1414621B1
EP1414621B1 EP02758103A EP02758103A EP1414621B1 EP 1414621 B1 EP1414621 B1 EP 1414621B1 EP 02758103 A EP02758103 A EP 02758103A EP 02758103 A EP02758103 A EP 02758103A EP 1414621 B1 EP1414621 B1 EP 1414621B1
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EP
European Patent Office
Prior art keywords
tool
sleeve
rotating machine
axially
machine according
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.)
Expired - Lifetime
Application number
EP02758103A
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German (de)
English (en)
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EP1414621A1 (fr
Inventor
Günter Zierpka
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Individual
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Individual
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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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17666—Radially reciprocating jaws
    • Y10T279/17692—Moving-cam actuator
    • Y10T279/17743—Reciprocating cam sleeve
    • Y10T279/17752—Ball or roller jaws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/20—Chucks or sockets with safety feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/953—Clamping jaws

Definitions

  • the invention relates to a lathe in the form of a hand drill, a percussion drill, a hammer drill or a cordless screwdriver having a drive motor received within a machine housing and a drive shaft operatively connected to the motor housing, and a tool receptacle having a tool clamping device for detachably coupling one Drill, fferenburnerbits or a similar tool with the drive shaft, wherein the tool holder is integrated with the tool clamping device directly into the lathe by a polygonal longitudinal recess, in particular a hexagonal recess hineinerstreckt into the drive shaft from the abtrieb workedem end, said on Tool receiving portion of the drive shaft as a tool clamping device a clamping sleeve is received, by means of at least one in a jacket of the tool holder penetrating RadialausEnglishu ng received latching element in a radially projecting into the tool holder locking position actuated and can be released for radial deflection into an
  • Such a lathe is already out of the U.S. Patent 5,013,194 A1 previously known.
  • the document more specifically discloses the tool holder of such a lathe, which has a multi-edged shaft recess for receiving a tool, in which a similar tool can be inserted.
  • So hand drills are common and percussion drills basically equipped with key-operated sprocket chucks, by means of which mainly drilling tools with round shafts are tensioned.
  • the operation of such chucks is linked to the availability of a suitable key and also cumbersome and time consuming.
  • Characteristic of the known chuck is that they are provided with sprockets or improved grip mediating longitudinal grooves, corrugations or the like, the accident hazards in running machines.
  • the tool holder is integrated with the tool clamping device directly into the lathe by hineinerstreckt a polygonal longitudinal recess, in particular a hexagonal recess in the drive shaft of the abtrieb workedem front end , And that on the tool receiving portion having the drive shaft as a tool clamping device, a clamping sleeve is received by means of the at least one latching element accommodated in a radial recess penetrating the casing of the tool holder can be actuated into a locking position protruding radially into the tool holder and can be released for radial deflection into an unlocking position.
  • the lathe according to the invention is suitable and intended for clamping tools with one of the tool holder forming polygonal longitudinal recess adapted, in particular designed as a hex shank polygonal shaft with a circumferential locking groove engages in the clamped tool at least one actuatable by means of the clamping sleeve in its locking position Verrastungselement ,
  • the invention provides that the clamping sleeve is formed as between the locking position and the unlocking axially actuated sliding sleeve.
  • This sliding sleeve can directly on the spigot into which the polygonal longitudinal recess hineinerstreckt as a tool holder, stored and part of a on the spigot be the tool holder axially displaceably guided actuating sleeve.
  • the sliding sleeve is also axially fixed to a rotationally fixed on the machine housing, but axially movable guided actuating sleeve, but rotatably connected to the latter.
  • the actuating shaft of the tool clamping device can be accommodated on a housing neck projecting from the machine housing, surrounding the mounting journal of the tool mount on a part of its longitudinal extension.
  • the lathe according to the invention can also be designed so that the axially slidably received on the housing neck actuating sleeve in the locking position is axially fixed. As a result, a random displacement of the actuating sleeve, and thus the clamping sleeve, is prevented from the locking position.
  • the arrangement of a centering cone in the depth of the tool holder conveys, in addition to the necessary axial support of a tool whose precise centering at the shaft end, which expediently cooperates with a centering of the shank spaced axially from the centering cone.
  • An axially spaced from Zentrierkonus Schaftzentritation a tool can be realized in a simple manner that serve as by means of the clamping sleeve between a locking position and an unlocking clamping elements actuated three detent balls which break through in the mantle of the receiving pin of the tool holder in the vicinity of its free end face and evenly distributed over the circumference arranged radial recesses are added.
  • Characteristic of such a trained tool holder and tool clamping device is a precise centering of the shaft end and spaced therefrom of extending to the actual tool shaft by engage in the locking position three evenly distributed over the circumference arranged detent balls in a circumferential groove of the tool shank.
  • the clamping sleeve is provided with locking boards for actuating and locking in these the detent balls in their locking positions and the detent boards should be formed as spherical caps, which are adapted to the detent balls.
  • the locking members of the clamping sleeve can also be arranged on spring fingers which protrude axially from the clamping sleeve. May be limited, the radial mobility of the spring fingers by the latter outside enclosing and possibly supporting stop means.
  • the axial locking of the locking sleeve and thus the clamping sleeve in the locking position is realized in a preferred embodiment in that the axially fixedly connected to the clamping sleeve actuating sleeve is provided with at least one over the contact surface with the housing neck projecting guide projection and that this guide projection in a in Housing spigot extending guide groove engages, which is followed by a circumferentially extending locking portion, which allows a limited rotation of the actuating sleeve relative to the latter receiving housing socket in the locking position, wherein the guide projection enters the Arret Sammlungsabexcellent and thereby mediates an axial fixation of the actuating sleeve.
  • the guide projection of the actuating sleeve may expediently be at least one spring-loaded guide ball, which is received in a radial recess of the actuating sleeve.
  • the axial displaceability of the sliding sleeve is limited by at least one in each case in a locking position and in the unlocking position engaging in a latching resilient locking cam in the lathe according to the invention, whereby a clear positioning of the sliding sleeve is realized in its two functional end positions.
  • notches which engages in the respective end positions of the sliding sleeve of the locking cam, it may be axially spaced from each other in the receiving pin or in a latter surrounding and the actuating sleeve rotatably overlapping housing neck radially eingochene locking grooves act.
  • the sliding sleeve can also, according to another important embodiment of the invention, be actuated by means of an electromagnet which engages the axially fixed, but rotatably connected to the sliding sleeve actuating sleeve.
  • This electromagnet can be designed to be double-acting, which thus allows actuation of serving as a clamping sleeve sliding sleeve from the unlocking position into the locking position and vice versa from the latter again in the unlocking position.
  • the actuation of the sliding sleeve by means of an electromagnet can also take place against the action of a return spring.
  • a particularly important embodiment of the invention is characterized in that the receiving pin of the tool holder overlapped with the tool clamping device of a machine housing connected to the housing cover and thereby any access of an operator to the sliding or actuating sleeve is impossible.
  • the lathe according to the invention may be, for example, a cordless screwdriver, a hand drill, a percussion drill or even a hammer drill.
  • the design as a hammer drill is characterized in that the tool holder, so the polygonal longitudinal recess is limited in depth by an axially movably received in the drive shaft plunger, which is sleeve-like and pointing to the tool holder side facing a constricting centering cone and is operatively connected to a pulsating axial drive.
  • the centering cone conveys, as already explained above, a precise centering of the shank end of a tool received in the tool holder and the pulsating axial drive may in particular be a pneumatic drive of the kind known in rotary hammers.
  • the tools to be used must have a circumferential detent groove whose width is greater than the axial extent of engaging in the locking latch in the latching detent element, so that such a tool within the width of the extension of the detent groove pulsating axial movements within the tool holder, which at a such pulsation is not involved, can perform.
  • the in the Fig. 1 to 3 illustrated cordless screwdriver 10 has a housing 11, protruding from the approximately at right angles to the longitudinal extent of a handle 12 with a coupling shoe 13 for a releasably coupled battery 14.
  • a drive motor which can be switched on and off by means of an actuating switch 15 and by means of a switch 16 Drehschaltbar.
  • a gearbox as well as a by means of a housing 11 on the output side associated adjusting wheel 17 with respect to the torque to be transmitted adjustable slip clutch is operatively connected to the drive motor 18 of a drive shaft.
  • the drive motor, the transmission and the slip clutch are not shown in the drawing and require no explanation, because such drive elements are well known in cordless screwdrivers.
  • Trained as a hollow shaft drive shaft 18 is led out of the housing 11 with the adjusting ring 17 and rotatably mounted in the housing 11 in a manner not of interest here, but axially fixed. It protrudes with a receiving pin 20 at the front end over the housing 11 with the adjusting ring 17. From the free end face of the receiving pin 20 extends in this a hexagonal longitudinal recess 21 as a tool holder for equipped with adapted hexagonal shanks tools. The hexagonal longitudinal recess 21 terminates in depth in a centering cone 22. In the vicinity of the housing 11 remote from the end of the receiving pin 20 whose shell of three uniformly distributed over the circumference arranged radial recesses 23 is broken in which latching balls 24 received as radially movable locking elements are.
  • the sliding sleeve 25 is operable between a locking position and an unlocking position.
  • the locking position which in the FIGS. 2 and 3 is shown, the detent balls 24 project radially into the hex recess 21 and are held by latching members 26 of the sliding sleeve 25 in this position.
  • the locking balls 24 in the sliding sleeve to the locking boards 26 axially subsequent radial recesses 27 dodge radially such that they no longer protrude into the formed by the hexagonal longitudinal recess 21 tool holder.
  • the latching boards 26 of the sliding sleeve 25 are adapted to the detent balls 24 and thus as Hohlkalotten -ausge strict, that the locking balls are supported in the tensioned state of a tool areally on the locking boards.
  • the sliding sleeve 25 is positioned in the advanced unlocking position and in the axially spaced, retracted locking position by means of at least one resiliently mounted on the sliding sleeve locking cam 28 which engages in the respective end position in a radially inwardly inserted from the outside into the receiving pin 20 locking groove 29, 30.
  • the cordless screwdriver 10 is intended for clamping tools with a hexagonal shank and a centering cone arranged on the shank end and a ring groove extending at a distance from the centering cone.
  • the distance between the circumferential groove in the tool shaft of the front end centering cone corresponds to the distance between the centering cone 22 at the end of the tool holder forming hexagonal longitudinal recess 21 and the detent balls 26, in which are arranged in the vicinity of the free end face of the receiving pin radial recesses 23.
  • the shank of such a tool can be inserted into the tool holder 21 when the sliding sleeve 25 is in the advanced unlocking position in which the locking balls can move radially out of the region of the hexagonal longitudinal recess 21 forming the tool holder.
  • the tool is in the tool holder by retracting the sliding sleeve in the from FIGS. 2 and 3 apparent locking position tensioned by the locking balls 24 engage in the circumferential locking groove of the tool shank.
  • the in the 4 and 5 illustrated embodiment differs from that in the FIGS. 2 and 3 shown cordless screwdriver characterized in that the latching boards 26 are arranged on three axially from the sliding sleeve 25 'forterumblenden spring fingers 38 which can be limited in the illustrated locking position in the interest of a desirable tolerance compensation radially dodge. Limited is the spring travel of the spring fingers 38 by a latter radially encompassing stop shoulder 39th
  • the 6 and 7 illustrate in views similar to the FIGS. 2 and 3 an alternative embodiment of the tool holder and tool clamping device.
  • the 6 and 7 are for the same parts as in the Fig. 1 to 3 in each case increased by 100 reference numerals used.
  • the alternative embodiment according to the 6 and 7 also has a on the housing 111 with the adjusting ring 117 projecting spigot 120 with a hexagonal longitudinal recess 121 as a tool holder.
  • the front locking boards 126 for locking the locking balls 124 has a protruding into the hexagonal longitudinal recess 121 locking position and is axially adjacent to the locking members provided with radial recesses 127 , in which in the unlocked position advanced clamping sleeve 125, the locking balls 124 can dodge radially.
  • the rotatably received on the receiving pin 120 and also designed as a sliding sleeve clamping sleeve 125 is not einstükkig trained in contrast to the first embodiment with an operating sleeve, but with an operating sleeve 125 'axially fixed, but rotatably connected, in turn rotatably on a receiving pin 120 on a Part of its longitudinal extension concentrically enclosing housing stub 132 is mounted axially displaceable.
  • the rotatable connection of the operating sleeve 125 'with the clamping sleeve 125 can be effected via a sliding bearing, for example by means of engaging in a corresponding radial groove of the operating sleeve radial projection of the clamping sleeve, as in the upper half of Fig. 6 is shown, or by means of a ball bearing, as the lower half of the sectional view in Fig. 6 shows.
  • the housing sleeve 132 axially movable, but rotatably received actuating sleeve 125 ' has a projecting into a housing socket 132 longitudinal recess projecting cam 133 which actuates in the end positions of the sliding sleeve in each case one arranged at the ends of the elongated recess electrical contact 134, 135.
  • These contacts enable turning on the lathe only when a tool is properly tensioned in the tool holder.
  • the tool holder 121 is equipped in depth with a tapered centering cone 122 for centering the provided with a centering cone shank end of the tools to be used, however, arranged in contrast to the first embodiment, part of a in the depth of the tool holder axially movable Pestle 134 is.
  • This plunger is in operative connection with a pulsating axial drive, such as a pneumatic drive previously known in rotary hammers.
  • the alternative embodiment according to the 6 and 7 is intended for the use of tools in which, as in conventional rotary hammers, spaced from a centering cone arranged at the shaft end circumferential annular groove has a width extension which is greater than the axial depth of engagement of the locking balls 124 in the locking position.
  • cordless screwdriver which is also used as a hammer drill and allows for a rotational movement of superimposed axial movement of a tensioned tool when using a pneumatic drive or otherwise pulsating driven plunger 134 in the context of the width of the extension arranged in the shank of a corresponding tool groove ,
  • the in the Fig. 8 to 10 illustrated embodiment differs from the above in connection with the 6 and 7 explained embodiment in that the recorded on the housing neck 132 actuating sleeve 125 "has no cooperating with annular grooves of the housing neck locking cam, but the actuating sleeve 125" is in the in Fig. 8 Locking position shown axially locked.
  • the axially fixedly connected to the clamping sleeve 125 actuating sleeve 125 '' is equipped with three at equal angular intervals distributed over the circumference arranged guide balls 140 which are received in QuerausEnglishept 141 of the actuating sleeve and distributed under Federkraftbeetzschlagung in equally uniform over the circumference of the housing stub 132 'arranged Guide grooves 142 engage.
  • These guide grooves extend over one of the axial movement of the actuating sleeve 125 "of the retracted Entriegelungs ein in the advanced locking position corresponding longitudinal section axially and then buckle at the formation of Arretianssabroughen 143 at right angles in the circumferential direction.
  • the actuating sleeve 125 "in the locking position by rotation relative to the housing neck 132 axially locked, because as a result of this rotation, the guide balls 140 reach the locking portions 143.
  • a collet 225 axially movably mounted and axially fixed, but rotatably connected to an actuating sleeve 225 ', which in turn on a receiving pin 220 on a portion of its length and extending from the housing 211 projecting housing sleeve 232 rotatably, but is mounted axially displaceable.
  • the actuation of the clamping sleeve 225 between its locking position in which the locking balls 224 in the hexagonal longitudinal recess 221, which forms the depth of a clamping cone 222 completed tool holder, and an advanced unlocking position in which the locking balls 224 can dodge radially serves a double-acting magnet 235 which engages on one of the housing 211 with the collar projecting and the receiving pin 220 on a portion of its longitudinal extent concentrically enclosing housing sleeve 232 recorded actuating ring 225.
  • This magnet can be double-acting be or actuate the clamping sleeve 225 against the action of a return spring in one of its end positions.
  • the tool holder with the recorded on the spigot or a housing projection tool clamping device is received within a housing cover 236, which extends axially from the machine housing 211 with the adjusting ring and the tool holder and the tool clamping device encloses.

Claims (14)

  1. Machine tournante, par exemple sous la forme d'une perceuse à main, d'un marteau à percussion, d'un marteau perforateur ou d'une perceuse-visseuse à batteries, comportant un moteur logé dans un carter (111, 211) et un arbre de transmission (18, 118, 218) relié à celui-ci de manière active, dépassant dudit carter (111, 211), et comportant une réception d'outil présentant un dispositif de serrage d'outil destiné à accoupler de manière amovible un foret, des embouts de vissage ou un outil similaire de ce genre sur ledit arbre de transmission, ladite réception d'outil étant intégrée immédiatement avec ledit dispositif de serrage d'outil dans ladite machine tournante, un évidement longitudinal polygonal (21, 121, 221), en particulier un évidement hexagonal, s'étendant, depuis l'extrémité côté moteur dudit arbre, dans ledit arbre de transmission (18, 118, 218), sur la section dudit arbre de transmission présentant ladite réception d'outil comme dispositif de serrage d'outil, une douille de serrage (25, 25', 125, 225) étant fixée, au moyen de laquelle au moins un élément d'indexation (24, 124, 224), fixé dans un évidement radial traversant l'enveloppe de ladite réception d'outil peut être actionné dans une position de verrouillage dépassant radialement dans ladite réception d'outil et peut être libéré pour éviter radialement dans une position de déverrouillage, et ladite douille de serrage étant formée comme clavette (25, 125, 225) que l'on peut faire coulisser axialement entre ladite position de verrouillage et ladite position de déverrouillage,
    caractérisée en ceci que ladite douille de serrage est reliée à une douille d'actionnement (125', 225'), de manière axialement fixe, mais rotative par rapport à celle-ci, douille d'actionnement, qui est guidée sur ledit carter (111, 211) de manière non-rotative, mais axialement mobile, ladite douille d'actionnement (125', 225') étant logée, de manière à pouvoir coulisser axialement, sur un embout de carter (132, 232), dépassant dudit carter (111, 211) et entourant, sur une partie de son extension longitudinale, une portée réceptrice (120, 220) dépassant dudit arbre de transmission de ladite réception d'outil, et pouvant être arrêtée axialement en position de verrouillage.
  2. Machine tournante selon la revendication 1, caractérisée en ceci que ladite réception d'outil (21, 121, 221), qui s'étend sous forme d'un évidement polygonal dans ledit arbre de transmission ou dans ladite portée réceptrice (20, 120, 220), est délimitée dans sa profondeur par un cône de centrage convergent (22, 122, 222) destiné à appuyer et centrer une extrémité de la queue de l'outil présentant un contre-cône adapté.
  3. Machine tournante selon la revendication 1 ou 2, caractérisée en ceci que trois billes d'indexation (24, 124, 224) servent d'éléments de serrage pouvant être actionnés au moyen de ladite douille de serrage (25, 25', 125, 225) entre une position de verrouillage et une position de déverrouillage, lesquels sont logés dans des évidements radiaux (23, 123, 223), qui traversent l'enveloppe de ladite portée réceptrice (20, 120, 220) de ladite réception d'outil à proximité de son extrémité avant libre et sont disposés de manière homogène sur la circonférence.
  4. Machine tournante selon la revendication 3, caractérisée en ceci que, ladite douille de serrage (25, 25', 125, 225) est équipée de saillies d'indexation (26, 26', 126, 226) destinées à actionner et arrêter lesdites billes d'indexation (24, 124, 224) dans leurs positions de verrouillage, et que lesdites saillies d'indexation sont formées comme calottes sphériques adaptées auxdites billes d'indexation.
  5. Machine tournante selon la revendication 4, caractérisée en ceci que lesdites saillies d'indexation (26') de ladite douille de serrage (25') sont disposées sur des doigts élastiques (38), qui dépassent axialement de ladite douille de serrage (25'), et que la mobilité radiale desdits doigts élastiques (38) est limitée par des organes d'attache (39).
  6. Machine tournante selon l'une des revendications précédentes, caractérisée en ceci que ladite clavette (25) est positionnée immédiatement sur ladite portée réceptrice (20) de ladite réception d'outil.
  7. Machine tournante selon l'une des revendications précédentes, caractérisée en ceci que ladite douille d'actionnement (125'') reliée de manière axialement fixe à ladite douille de serrage (125) est pourvue d'au moins une saillie de guidage (140) dépassant à travers la surface de contact avec ledit embout de carter (132') et que cette saillie engrène dans une rainure de guidage (142) s'étendant dans ledit embout de carter (132'), laquelle est suivie d'un tronçon d'arrêt (143) s'étendant en direction de circonférence, lequel permet, en position de verrouillage, une rotation limitée de ladite douille d'actionnement (125") par rapport audit embout de carter (132), ladite saillie de guidage (140) accédant audit tronçon d'arrêt (143) et provoquant ainsi un arrêt axial de ladite douille d'actionnement (125'').
  8. Machine tournante selon l'une des revendications précédentes, caractérisée en ceci qu'au guidage axial non-rotatif de ladite clavette (125) et/ou de ladite douille d'actionnement (125') y reliée de manière rotative, mais axialement fixe, sont associés des contacts électriques (134, 135), qui ne permettent une mise sous tension de ladite machine tournante que si un outil est serré dans ladite réception d'outil.
  9. Machine tournante selon l'une des revendications précédentes, caractérisée en ceci que le déplacement axial de ladite clavette (25, 125) est limité par au moins une came d'indexation résiliente (28, 128), qui engrène dans un cran en position de verrouillage et en position de déverrouillage.
  10. Machine tournante selon la revendication 9, caractérisée en ceci que, pour les crans, dans lesquels ladite came d'indexation (28, 128) engrène en position finale correspondante de ladite clavette (25, 125), il s'agit de rainures d'indexation plongées, de manière écartée axialement l'une par rapport de l'autre, dans ladite portée réceptrice (20) ou bien radialement dans un embout de carter (132) entourant celle-ci et logeant ladite douille d'actionnement de manière non-rotative.
  11. Machine tournante selon l'une des revendications précédentes, caractérisée en ceci que ladite clavette (225) peut être actionnée au moyen d'un aimant électrique (235), le cas échéant réalisé à double effet, lequel engrène sur ladite douille d'actionnement (225') reliée axialement fixe, mais de manière rotative à ladite clavette.
  12. Machine tournante selon la revendication 11, caractérisée en ceci que l'actionnement de ladite clavette (225) s'effectue au moyen dudit aimant électrique (235) vers l'une de ses positions finales à la rencontre de l'effet d'un ressort antagoniste.
  13. Machine tournante selon l'une des revendications 11 ou 12, caractérisée en ceci que ladite portée réceptrice (220) de ladite réception d'outil avec ledit dispositif de serrage d'outil est couvert par une cache (236) reliée audit carter (211).
  14. Machine tournante selon l'une des revendications précédentes, caractérisée en ceci que ledit évidement polygonal (121) est délimité dans sa profondeur par un coulisseau (134) logé de manière mobile dans ledit arbre de transmission et réalisé sous la forme d'une douille, lequel présente du côté orienté vers ladite réception d'outil un cône de centrage (122) et est relié de manière active à un entraînement axial fonctionnant de manière pulsatrice, en particulier à un entraînement pneumatique.
EP02758103A 2001-07-26 2002-07-18 Machine rotative se presentant approximativement sous forme de perceuse a main, de perceuse a percussion, de marteau perforateur ou de tourne-vis sans fil Expired - Lifetime EP1414621B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20112117U 2001-07-26
DE20112117U DE20112117U1 (de) 2001-07-26 2001-07-26 Drehmaschine, etwa in Form einer Handbohrmaschine, einer Schlagbohrmaschine, eines Bohrhammers oder eines Akkuschraubers
PCT/DE2002/002632 WO2003015991A1 (fr) 2001-07-26 2002-07-18 Machine rotative se presentant approximativement sous forme de perceuse a main, de perceuse a percussion, de marteau perforateur ou de tourne-vis sans fil

Publications (2)

Publication Number Publication Date
EP1414621A1 EP1414621A1 (fr) 2004-05-06
EP1414621B1 true EP1414621B1 (fr) 2009-12-09

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EP02758103A Expired - Lifetime EP1414621B1 (fr) 2001-07-26 2002-07-18 Machine rotative se presentant approximativement sous forme de perceuse a main, de perceuse a percussion, de marteau perforateur ou de tourne-vis sans fil

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US (1) US6988734B2 (fr)
EP (1) EP1414621B1 (fr)
AT (1) ATE451200T1 (fr)
DE (3) DE20112117U1 (fr)
WO (1) WO2003015991A1 (fr)

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US20040013485A1 (en) 2004-01-22
WO2003015991A1 (fr) 2003-02-27
DE10293601A5 (de) 2009-04-16
ATE451200T1 (de) 2009-12-15
DE50214075D1 (de) 2010-01-21
US6988734B2 (en) 2006-01-24
DE20112117U1 (de) 2001-10-31
EP1414621A1 (fr) 2004-05-06

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