EP1236865B1 - Pneumatic tool - Google Patents

Pneumatic tool Download PDF

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Publication number
EP1236865B1
EP1236865B1 EP02002426A EP02002426A EP1236865B1 EP 1236865 B1 EP1236865 B1 EP 1236865B1 EP 02002426 A EP02002426 A EP 02002426A EP 02002426 A EP02002426 A EP 02002426A EP 1236865 B1 EP1236865 B1 EP 1236865B1
Authority
EP
European Patent Office
Prior art keywords
turning device
housing part
accordance
supply conduit
switch
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
EP02002426A
Other languages
German (de)
French (fr)
Other versions
EP1236865A1 (en
Inventor
Norbert Lay
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.)
Schmid and Wezel GmbH and Co
Original Assignee
Schmid and Wezel GmbH and Co
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 Schmid and Wezel GmbH and Co filed Critical Schmid and Wezel GmbH and Co
Publication of EP1236865A1 publication Critical patent/EP1236865A1/en
Application granted granted Critical
Publication of EP1236865B1 publication Critical patent/EP1236865B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/026—Fluid driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
    • F01D15/062—Controlling means specially adapted therefor
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/904—Tool drive turbine, e.g. dental drill

Definitions

  • the present invention relates to a pressurized fluid operated turning device for example.
  • Pneumatic tools according to the preamble of claim 1.
  • Turning device forms the switch at least partially rear housing part and is opposite the front Housing part and a housing receiving him over a thread rotatable. With this twisting will the Pressure fluid supply released or closed.
  • the Braking device is spring loaded and is the Closing the pressure fluid supply with the twisting of the Switch pressed on the rotor.
  • This known rotating device is structurally relatively consuming and requires a variety of components.
  • the opening and closing of the Pressure fluid supply not with a single hand too accomplish and therefore impractical and beyond time-consuming because of the large number of necessary turns.
  • the object of the present invention is to provide a To provide rotary device of the type mentioned, the with fewer components and the simpler and easier faster way via a fluid switch to a standstill can be brought.
  • the Switch is designed as a simple slide switch, the not only in one-hand operation but also very fast Way to operate.
  • the shift-resistant Connection of the brake disc and the slide switch is without further components an immediate opening and Closing the braking device by means of the slide switch possible.
  • the compressed air tool 10 shown in the drawing has a rotating device 11, the bspw a rotor 12. in the form of a turbine with compressed air can be acted upon and thereby set in rotation.
  • the supply of compressed air is by means of a Slide switch 13 switched on and off, with the Switching off compressed air via the slide switch 13 at the same time a braking device 14 on the rotor 12 for Effect comes.
  • the pneumatic tool 10 has an elongated Housing 16, the one rotatably connected to the rotor 12 Drive shaft 18 surrounds, which at its from the housing 16th outstanding end is provided with a chuck 19.
  • the drive shaft 18 is both close to the rotor 12 Range as well as on the rotor 12 far and the chuck 19 near area in the housing 16 rotatably mounted.
  • a front housing part 17 is at its one connectable rear housing part 21 facing the end 22nd cup-shaped.
  • the cup-shaped end 22 is of a lid part 23 of the rear housing part 21st locked.
  • the lid part 23 is of a tube part 24th the rear housing part 21 penetrates, which pipe part 24 axially an axial feed channel 26 for the Compressed air has.
  • Cover part 23 and pipe part 24 are here integrally.
  • the feed channel 26 opens into the turbine rotor 12. Outside the cover part 23 of the feed channel 26 is in Pipe part 24 interrupted. In the facing each other closed ends 27 and 28 of the feed channel 26 open several evenly distributed over the circumference arranged radial overflow channels 31 and 32, from the Outside circumference of the pipe part 24 go out.
  • sleeve-shaped slide 36 On the one with smooth cylindrical outer periphery 29 provided pipe part 24, with a connection end 33 for a Compressed air hose connection is one sleeve-shaped slide 36 axially movable. Of the sleeve-shaped slide 36 serves as a switch for the Feeding and shutting off via the feed channel 26 supplied compressed air for driving the rotating device eleventh
  • the slider 36 has an inner annular groove 37, which in the Is able, the radial overflow 31 and 32 of the two closed Zutechnologykanalenden 27 and 28 to each other connect.
  • the annular groove 37 therefore has according to the figure 2 a width equal to the distance of the radial transfer passages 31 and 32 corresponds, so that in the switched-on position of the slide switch 36, the outlet openings of the radial Overflow channels 31 and 32 covered by the annular groove 37 and are connected.
  • On both sides of the annular groove 37 are an O-ring 38 and two O-rings 39 and 40 are arranged, the in the switched-on state leakage to the outside prevented and of which the indirect O-ring 40 in the Compressed air supply interrupting state of Slider switch 36 at a location between the two radial overflow channels 31 and 32 is arranged (FIG 1). In this position, the transfer ports 31 are not connected to the transfer channels 32, so that the Compressed air supply is interrupted.
  • the sleeve-shaped slide 36 has several, for example. Three evenly distributed over the circumference arranged Control pins 41 which extend in the axial direction.
  • the control pins 41 are with their one end in Blind holes 42 of the sleeve-shaped slider 36th held, penetrate guide holes 43 in Cover part 23 axially movable and are at their inside the cup-shaped end 22 of the front housing part 17th lying end with a brake disk 44 of the Braking device 14 non-displaceably connected.
  • the Brake disc 44 which is provided with an annular brake pad 46 is fitted, is on the rotor 12 facing the inner End of the tubular member 24 axially movable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)
  • Machine Tool Units (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Telephone Function (AREA)
  • Control Of Turbines (AREA)

Abstract

A sliding switch (36) encloses the rear section (21) of the rotary device casing (16) in the compressed air supply channel region, and is provided with axial guide pins (41) secured to a brake disc (44) in the braking device (14) cooperating with the switch. Pressurised fluid can flow into the turbine part of a rotor (12) in the front section (17) of the rotary device casing. A sliding switch for the pressurised fluid supply cooperates with a braking device.

Description

Die vorliegende Erfindung bezieht sich auf eine Druckfluid betriebene Drehvorrichtung für bspw. Druckluftwerkzeuge nach dem Oberbegriff des Anspruchs 1.The present invention relates to a pressurized fluid operated turning device for example. Pneumatic tools according to the preamble of claim 1.

Bei einer derartigen aus der US-A-5 186 603 bekannten Drehvorrichtung bildet der Schalter zumindest teilweise das hintere Gehäuseteil und ist gegenüber dem vorderen Gehäuseteil und einem ihn aufnehmenden Gehäusedeckel über ein Gewinde verdrehbar. Mit diesem Verdrehen wird die Druckfluidzuführung freigegeben oder verschlossen. Die Bremseinrichtung ist federbelastet und wird beim Verschließen der Druckfluidzuführung mit dem Verdrehen des Schalters auf den Rotor gedrückt.In such a known from US-A-5,186,603 Turning device forms the switch at least partially rear housing part and is opposite the front Housing part and a housing receiving him over a thread rotatable. With this twisting will the Pressure fluid supply released or closed. The Braking device is spring loaded and is the Closing the pressure fluid supply with the twisting of the Switch pressed on the rotor.

Diese bekannte Drehvorrichtung ist konstruktiv relativ aufwendig und benötigt eine Vielzahl von Bauteilen. Außerdem ist das Öffnen und Verschließen der Druckfluidzuführung nicht mit einer einzigen Hand zu bewerkstelligen und daher unpraktisch und darüber hinaus wegen der Vielzahl von notwendigen Umdrehungen zeitraubend.This known rotating device is structurally relatively consuming and requires a variety of components. In addition, the opening and closing of the Pressure fluid supply not with a single hand too accomplish and therefore impractical and beyond time-consuming because of the large number of necessary turns.

Aufgabe der vorliegenden Erfindung ist es, eine Drehvorrichtung der eingangs genannten Art zu schaffen, die mit weniger Bauteilen auskommt und die in einfacherer und schnellerer Weise über einen Fluidschalter zum Stillstand gebracht werden kann.The object of the present invention is to provide a To provide rotary device of the type mentioned, the with fewer components and the simpler and easier faster way via a fluid switch to a standstill can be brought.

Zur Lösung dieser Aufgabe sind bei einer Drehvorrichtung der genannten Art die im Anspruch 1 angegebenen Merkmale vorgesehen.To solve this problem are in a rotating device of the type mentioned in claim 1 features intended.

Mit den erfindungsgemäßen Maßnahmen ist erreicht, dass der Schalter als einfacher Schiebeschalter ausgebildet ist, der nicht nur im Einhandbetrieb sondern auch in sehr schneller Weise zu betätigen ist. Durch die verschiebefeste Verbindung der Bremsscheibe und des Schiebeschalters ist ohne weitere Bauteile ein unmittelbares Öffnen und Schließen der Bremseinrichtung mittels des Schiebeschalters möglich.With the measures according to the invention it is achieved that the Switch is designed as a simple slide switch, the not only in one-hand operation but also very fast Way to operate. By the shift-resistant Connection of the brake disc and the slide switch is without further components an immediate opening and Closing the braking device by means of the slide switch possible.

Mit den Merkmalen nach Anspruch 2 ist eine verschiebefeste Führung für die Steuerstifte erreicht. Gemäß den Merkmalen nach Anspruch 3 kann mit dem Abschalten und Abbremsen des Rotors gleichzeitig eine Entlüftung stattfinden.With the features of claim 2 is a shift-resistant Leadership for the control pins achieved. According to the characteristics according to claim 3, with the switching off and braking of the Rotor take place at the same time a vent.

Vorteilhafte Ausgestaltungen hinsichtlich des Öffnens und Schließens des Druckfluidzuführkanales mit Hilfe des Schiebeschalters ergeben sich aus den Merkmalen eines oder mehrerer der Ansprüche 4 bis 6.Advantageous embodiments with respect to the opening and Closing the Druckfluidzuführkanales using the Slide switch result from the characteristics of one or more of claims 4 to 6.

Weitere Einzelheiten der Erfindung sind der folgenden Beschreibung zu entnehmen, in der die Erfindung anhand des in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben und erläutert ist. Es zeigen:

Figur 1
in längsgeschnittener und abgebrochener Darstellung ein mit einer Drehvorrichtung gemäß einem bevorzugten Ausführungsbeispiel vorliegender Erfindung versehenes Druckluftwerkzeug in ausgeschalteter und gebremster Stellung und
Figur 2
eine der Figur 1 entsprechende, abgebrochene Darstellung, jedoch in Betriebsstellung.
Further details of the invention can be found in the following description in which the invention with reference to the embodiment shown in the drawing is described and explained in more detail. Show it:
FIG. 1
in longitudinally sectioned and aborted representation provided with a rotating device according to a preferred embodiment of the present invention compressed air tool in the off and braked position and
FIG. 2
one of the figure 1 corresponding, aborted representation, however, in the operating position.

Das in der Zeichnung dargestellte Druckluftwerkzeug 10 besitzt eine Drehvorrichtung 11, die einen Rotor 12 bspw. in Form einer Turbine aufweist, der mit Druckluft beaufschlagbar ist und dadurch in Drehung versetzbar ist. Die Zuführung von Druckluft ist mittels eines Schiebeschalters 13 zu- und abschaltbar, wobei mit dem Abschalten von Druckluft über den Schiebeschalter 13 gleichzeitig eine Bremseinrichtung 14 auf den Rotor 12 zur Wirkung kommt.The compressed air tool 10 shown in the drawing has a rotating device 11, the bspw a rotor 12. in the form of a turbine with compressed air can be acted upon and thereby set in rotation. The supply of compressed air is by means of a Slide switch 13 switched on and off, with the Switching off compressed air via the slide switch 13 at the same time a braking device 14 on the rotor 12 for Effect comes.

Das Druckluftwerkzeug 10 besitzt ein langgestrecktes Gehäuse 16, das eine mit dem Rotor 12 drehfest verbundene Antriebswelle 18 umgibt, die an ihrem aus dem Gehäuse 16 herausragenden Ende mit einem Spannfutter 19 versehen ist. Die Antriebswelle 18 ist sowohl, am dem Rotor 12 nahen Bereich als auch am dem Rotor 12 fernen und dem Spannfutter 19 nahen Bereich im Gehäuse 16 drehbar gelagert.The pneumatic tool 10 has an elongated Housing 16, the one rotatably connected to the rotor 12 Drive shaft 18 surrounds, which at its from the housing 16th outstanding end is provided with a chuck 19. The drive shaft 18 is both close to the rotor 12 Range as well as on the rotor 12 far and the chuck 19 near area in the housing 16 rotatably mounted.

Ein vorderes Gehäuseteil 17 ist an seinem einem damit verbindbaren hinteren Gehäuseteil 21 zugewandten Ende 22 topfförmig ausgebildet. Das topfförmige Ende 22 ist von einem Deckelteil 23 des hinteren Gehäuseteils 21 verschlossen. Der Deckelteil 23 ist von einem Rohrteil 24 des hinteren Gehäuseteils 21 durchdrungen, welches Rohrteil 24 achsmittig einen axialen Zuführkanal 26 für die Druckluft aufweist. Deckelteil 23 und Rohrteil 24 sind hier einstückig. Der Zuführkanal 26 mündet in den Turbinenrotor 12. Außerhalb des Deckelteils 23 ist der Zuführkanal 26 im Rohrteil 24 unterbrochen. In die einander zugewandten verschlossenen Enden 27 und 28 des Zuführkanals 26 münden mehrere jeweils über den Umfang gleichmäßig verteilt angeordnete radiale Überströmkanäle 31 bzw. 32, die vom Außenumfang des Rohrteils 24 ausgehen. Auf dem mit einem glatten zylindrischen Außenumfang 29 versehenen Rohrteil 24, das mit einem Anschlußende 33 für einen Druckluftschlauchanschluß versehen ist, ist ein hülsenförmiger Schieber 36 axial bewegbar. Der hülsenförmige Schieber 36 dient als Schalter für das Zuführen und Absperren von über den Zuführkanal 26 zugeführter Druckluft zum Antreiben der Drehvorrichtung 11. Der Schieber 36 besitzt eine innere Ringnut 37, die in der Lage ist, die radialen Überströmkanäle 31 und 32 der beiden verschlossenen Zuführkanalenden 27 und 28 miteinander zu verbinden. Die Ringnut 37 besitzt deshalb gemäß der Figur 2 eine Breite, die dem Abstand der radialen Überströmkanäle 31 und 32 entspricht, so dass in der zugeschalteten Lage des Schieberschalters 36 die Ausgangsöffnungen der radialen Überströmkanäle 31 und 32 durch die Ringnut 37 überdeckt und verbunden sind. Zu beiden Seiten der Ringnut 37 sind ein O-Ring 38 bzw. zwei O-Ringe 39 und 40 angeordnet, die in zugeschaltetem Zustand eine Leckage nach außen verhindert und von denen der mittelbare O-Ring 40 im die Druckluftzufuhr unterbrechenden Zustand des Schieberschalters 36 an einer Stelle zwischen den beiden radialen Überströmkanälen 31 und 32 angeordnet ist (Figur 1). In dieser Position sind die Überströmkanäle 31 nicht mit den Überströmkanälen 32 verbunden, so dass die Druckluftzufuhr unterbrochen ist.A front housing part 17 is at its one connectable rear housing part 21 facing the end 22nd cup-shaped. The cup-shaped end 22 is of a lid part 23 of the rear housing part 21st locked. The lid part 23 is of a tube part 24th the rear housing part 21 penetrates, which pipe part 24 axially an axial feed channel 26 for the Compressed air has. Cover part 23 and pipe part 24 are here integrally. The feed channel 26 opens into the turbine rotor 12. Outside the cover part 23 of the feed channel 26 is in Pipe part 24 interrupted. In the facing each other closed ends 27 and 28 of the feed channel 26 open several evenly distributed over the circumference arranged radial overflow channels 31 and 32, from the Outside circumference of the pipe part 24 go out. On the one with smooth cylindrical outer periphery 29 provided pipe part 24, with a connection end 33 for a Compressed air hose connection is one sleeve-shaped slide 36 axially movable. Of the sleeve-shaped slide 36 serves as a switch for the Feeding and shutting off via the feed channel 26 supplied compressed air for driving the rotating device eleventh The slider 36 has an inner annular groove 37, which in the Is able, the radial overflow 31 and 32 of the two closed Zuführkanalenden 27 and 28 to each other connect. The annular groove 37 therefore has according to the figure 2 a width equal to the distance of the radial transfer passages 31 and 32 corresponds, so that in the switched-on position of the slide switch 36, the outlet openings of the radial Overflow channels 31 and 32 covered by the annular groove 37 and are connected. On both sides of the annular groove 37 are an O-ring 38 and two O-rings 39 and 40 are arranged, the in the switched-on state leakage to the outside prevented and of which the indirect O-ring 40 in the Compressed air supply interrupting state of Slider switch 36 at a location between the two radial overflow channels 31 and 32 is arranged (FIG 1). In this position, the transfer ports 31 are not connected to the transfer channels 32, so that the Compressed air supply is interrupted.

Der hülsenförmige Schieber 36 besitzt mehrere, bspw. drei gleichmäßig über den Umfang verteilt angeordnete Steuerstifte 41, die sich in axialer Richtung erstrecken. Die Steuerstifte 41 sind mit ihrem einen Ende in Sacklochbohrungen 42 des hülsenförmigen Schiebers 36 festgehalten, durchdringen Führungsbohrungen 43 im Deckelteil 23 axial bewegbar und sind an ihrem innerhalb des topfförmigen Endes 22 des vorderen Gehäuseteils 17 liegenden Ende mit einer Bremsscheibe 44 der Bremseinrichtung 14 verschiebefest verbunden. Die Bremsscheibe 44, die mit einem ringförmigen Bremsbelag 46 bestückt ist, ist auf dem dem Rotor 12 zugewandten inneren Ende des Rohrteils 24 axial bewegbar.The sleeve-shaped slide 36 has several, for example. Three evenly distributed over the circumference arranged Control pins 41 which extend in the axial direction. The control pins 41 are with their one end in Blind holes 42 of the sleeve-shaped slider 36th held, penetrate guide holes 43 in Cover part 23 axially movable and are at their inside the cup-shaped end 22 of the front housing part 17th lying end with a brake disk 44 of the Braking device 14 non-displaceably connected. The Brake disc 44 which is provided with an annular brake pad 46 is fitted, is on the rotor 12 facing the inner End of the tubular member 24 axially movable.

Mit Hilfe der axialen Steuerstifte 41 ist eine verschiebefeste Verbindung des Schiebers 36 mit der Bremsscheibe 44 vorgesehen, so dass dann, wenn der Schieberschalter 36 in einer die Druckluftzufuhr unterbrechenden Stellung (Figur 1) ist, die Bremsscheibe 44 mit ihrem Bremsbelag 46 gegen eine Ringstirn 47 des Rotors 12 drückt. Ist die Druckluftzufuhr geöffnet, ist gemäß Figur 2 die Bremsscheibe 44 in einem axialen Abstand vom Rotor 12. Zur Entlüftung während des Betriebs ist der Deckelteil 23 ist außerdem mit axialen Entlüftungsöffnungen 48 versehen.With the help of the axial control pins 41 is a shift-fixed connection of the slider 36 with the Brake disc 44 is provided so that when the Slider switch 36 in a compressed air supply interrupting position (Figure 1), the brake disc 44th with its brake pad 46 against an annular end 47 of the rotor 12 presses. If the compressed air supply is open, is in accordance with Figure 2, the brake disc 44 at an axial distance from Rotor 12. For venting during operation is the Cover part 23 is also provided with axial vents 48 provided.

Wenn auch die Drehvorrichtung 11 in Verbindung mit einem Druckluftwerkzeug 10 beschrieben ist, versteht es sich, dass die Drehvorrichtung 11 auch in einem mit einem anderen Druckfluid betriebenen Werkzeug eingesetzt werden kann.Although the rotating device 11 in conjunction with a Compressed air tool 10 is described, it is understood, that the turning device 11 also in one with another Pressure fluid operated tool can be used.

Claims (6)

  1. A turning device (11) operated by compressed air, for example for pneumatic tools (10), having a housing (16) and a rotor (12), which is rotatably arranged in a front housing part (17) and into whose turbine element the fluid under pressure can flow, having a braking arrangement (14) and a switch (36) for the compressed fluid, which is in operative connection with the braking arrangement (14) and is arranged on a rear housing part (21) in line with a compressed fluid supply conduit (26), characterized in that a sliding switch (36) is provided, which encloses the rear housing part (21) in the area of the supply conduit (26) and is provided with axially oriented control pins (41), which are connected, fixed against relative displacement, with a brake disk (44) of the braking arrangement (14).
  2. The turning device in accordance with claim 1, characterized in that the control pins (41) are guided in and through a cover (23) of the housing (16).
  3. The turning device in accordance with claim 2, characterized in that the housing cover (23) is supplied with vent openings (48).
  4. The turning device in accordance with at least one of claims 1 to 3, characterized in that the supply conduit (26) is interrupted in the rear housing part (21), and each end (27, 28) of the supply conduit (26) is connected with radial bypass conduits (31, 32) arranged in the rear housing part (21), whose outlet openings can be covered by the sliding switch (36).
  5. The turning device in accordance with claim 4, characterized in that the sliding switch (36) has an interior annular compressed fluid groove (37), whose width corresponds to the axial distance of the bypass conduits (31, 32) from both ends 5 (27, 28) of the supply conduit (26).
  6. The turning device in accordance with claim 5, characterized in that seal rings (38, 39, 40) are provided in the sliding switch (36) at both sides of the annular groove (37), the center seal ring (40) of which separates the two bypass conduits (31, 32).
EP02002426A 2001-03-01 2002-02-01 Pneumatic tool Expired - Lifetime EP1236865B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20103600U 2001-03-01
DE20103600U DE20103600U1 (en) 2001-03-01 2001-03-01 Pneumatic tools

Publications (2)

Publication Number Publication Date
EP1236865A1 EP1236865A1 (en) 2002-09-04
EP1236865B1 true EP1236865B1 (en) 2005-11-02

Family

ID=7953708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002426A Expired - Lifetime EP1236865B1 (en) 2001-03-01 2002-02-01 Pneumatic tool

Country Status (5)

Country Link
US (1) US6644420B2 (en)
EP (1) EP1236865B1 (en)
AT (1) ATE308673T1 (en)
DE (2) DE20103600U1 (en)
ES (1) ES2249499T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7223069B2 (en) * 2005-07-12 2007-05-29 Air Turbine Technology, Inc. Rotary tool
DE102005062887A1 (en) * 2005-12-29 2007-07-05 Robert Bosch Gmbh Hand-held machine tool e.g. boring machine, for driving e.g. boring tool, has transmission unit designed as single unit with tool retaining unit, and channel formed as single piece with turbine unit supply channel
JP5437861B2 (en) * 2010-03-09 2014-03-12 株式会社マキタ Electric tool
DE202010013940U1 (en) 2010-09-27 2010-12-09 Schmid & Wezel Gmbh & Co. Pneumatically powered hand tool with a modular turbine
DE202010013938U1 (en) 2010-09-27 2010-12-09 Schmid & Wezel Gmbh & Co. Hand tool with a designed as a handle housing
DE202010013939U1 (en) 2010-09-27 2010-12-23 Schmid & Wezel Gmbh & Co. Hand tool with a rotary drive and a brake
US11484986B2 (en) * 2017-01-13 2022-11-01 Makita Corporation Electric tool
CN114258337A (en) * 2019-06-12 2022-03-29 第一东方证券有限公司 Double-speed rotary tool

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709630A (en) * 1969-10-28 1973-01-09 Howmet Int Inc Pneumatic motor for medical instruments
US3952814A (en) * 1975-03-14 1976-04-27 Mikhail Lvovich Gelfand Impact wrench
US4141671A (en) * 1977-04-20 1979-02-27 Tarsoly Balazs K Tool gas turbine motor
US4776752A (en) * 1987-03-02 1988-10-11 Davis Lynn M Speed governed rotary device
US5186603A (en) * 1990-09-29 1993-02-16 Nitto Kohki Co., Ltd. Air motor
KR950001368Y1 (en) * 1991-04-23 1995-03-03 미끼야 도시오 Brake device of pneumatic rotational tool
US5439346A (en) * 1993-09-16 1995-08-08 Air Turbine Technology, Inc. Pneumatic pressure automatic braking mechanism
FR2776220B1 (en) * 1998-03-19 2000-05-05 Maire Charles Ets PNEUMATIC SCREWDRIVER

Also Published As

Publication number Publication date
ATE308673T1 (en) 2005-11-15
ES2249499T3 (en) 2006-04-01
DE20103600U1 (en) 2002-07-11
DE50204736D1 (en) 2005-12-08
US20020121385A1 (en) 2002-09-05
EP1236865A1 (en) 2002-09-04
US6644420B2 (en) 2003-11-11

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