EP0878273B1 - Outil à main - Google Patents

Outil à main Download PDF

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Publication number
EP0878273B1
EP0878273B1 EP19980108409 EP98108409A EP0878273B1 EP 0878273 B1 EP0878273 B1 EP 0878273B1 EP 19980108409 EP19980108409 EP 19980108409 EP 98108409 A EP98108409 A EP 98108409A EP 0878273 B1 EP0878273 B1 EP 0878273B1
Authority
EP
European Patent Office
Prior art keywords
switch
tool
handle
transmission device
housing
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
EP19980108409
Other languages
German (de)
English (en)
Other versions
EP0878273A3 (fr
EP0878273A2 (fr
Inventor
Wilhelm Geis
Swen Hamann
Reiner Felger
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.)
Techtronic Industries GmbH
Original Assignee
Atlas Copco Electric Tools 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
Priority claimed from DE19735506A external-priority patent/DE19735506C2/de
Application filed by Atlas Copco Electric Tools GmbH filed Critical Atlas Copco Electric Tools GmbH
Publication of EP0878273A2 publication Critical patent/EP0878273A2/fr
Publication of EP0878273A3 publication Critical patent/EP0878273A3/fr
Application granted granted Critical
Publication of EP0878273B1 publication Critical patent/EP0878273B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • 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

Definitions

  • the invention relates to a hand-held work tool, in particular a drill or hammer drill, according to the preamble of claim 1.
  • Such a drill is known from DE-A-196 05 827 known and has a provided with an electric motor drive part and a transverse to the drive part lying working part on, connected via a gear with the drive part is.
  • the driving part receiving portion of the Tool housing is in the middle area of the working part receiving portion of the tool housing arranged and formed as a front handle.
  • a rear auxiliary handle provided over a first attachment point at the height of the working part on the tool housing and a second attachment point on the the working part facing away from the front handle is permanently attached.
  • the auxiliary handle points to the the front handle side facing an actuator for an electrical switch for switching on and off of the electric motor, the switch in the auxiliary handle is arranged and via electrical lines with the arranged in the front handle electric motor in Connection stands.
  • the invention is based on the object, an electrical further developed power tool of the generic type such that it ergonomically appropriate to handle in a compact design and thus usable in a wide range of applications.
  • the arrangement of the switch in the working part allows the Use of a further actuating element, which on the rear auxiliary handle facing away from the front Handle is arranged.
  • a further actuating element which on the rear auxiliary handle facing away from the front Handle is arranged.
  • About one in the gap arranged between the tool housing and the transmission first transmission device is in the stripping section lying switch with the actuator of the front Handle coupled; via a second into the tool housing engaging transmission means is the actuating element of the insoluble or releasably fixed posterior Additional handle coupled with the common switch.
  • the for switching on and off of the electric motor provided switch is thus by an actuator operable, which in each case a handle of the working tool is arranged. This allows the tool with either hand or both Handles and hands and freely selectable actuator be used to turn on the engine. Either difficult angle drilling tasks as well as persistent, Heavy continuous operation can be so ergonomically favorable Way to be mastered. The user will also be at long Working phases exposed to only low loads.
  • the installation position of the switch requires little space, between the gearbox and the attachment point of the rear auxiliary handle is available.
  • the free choice of the arrangement of the actuators and the space-saving design of the transmission facilities for Switch is a user-friendly design of the entire device facilitated.
  • the rear auxiliary handle is advantageous as a removable Additional handle formed, preferably at both attachment points the tool housing is detachable. there couple the transmission equipment during assembly and Disassembly of the removable auxiliary handle on automatically or off.
  • the tool housing and the handles are appropriate made of plastic, preferably impact-resistant plastic.
  • FIG. 1 shows a longitudinal section through the hand-held working tool, with a tool housing 41, in which a drive part 1 and a working part 2 are arranged and at a removable auxiliary handle 3 is attached.
  • the drive part 1 is arranged transversely to the working part 2; it is pivoted downwards by 75 ° and is in its center area set. He has one as an electric motor trained engine 4 on, the one in ball bearings 5 mounted motor shaft 6 has. On this one are Commutator 7, an armature 8, a cooling fan 9 and a first Bevel gear 10 is arranged.
  • the bevel gear 10 is part of a Gear 39, which is designed as a bevel gear.
  • To the Motor 4 further includes a field winding 11 and a Power cable 12, which at the free end of the drive part. 1 is guided in the tool housing 41.
  • the working part 2 has a roller bearing spindle 14 on, via the gear 39 and a corresponding countershaft 20 is driven.
  • the rolling bearing countershaft 20 carries a second bevel gear 21 and a pinion 22, which meshes with a Antriebsstirnrad 23.
  • the drive spur wheel 23 is part of a designed as a planetary gear Two-speed gearbox 16. This is with a spindle lock 15 rotatably connected, whereby the working tool as well Hand screwdriver can be used.
  • a Spindle lock 15 On the tool housing located end of the drill spindle 14 acts a Impact ratchet 18, which can be activated by a shift lever 19 and thereby allows impact drilling.
  • a switch 13th In working direction seen in front of the transmission 39 is a switch 13th arranged, which is designed as an electronic speed controller is.
  • the drive part 1 is designed as a handle, in the Transition region to the working part 2 has a constriction. This is due to the lower compared to the engine 4 Space requirement of the arranged there gear 39 allows.
  • the constriction allows accommodation an actuating element 24 facing on the drilling spindle Side of the handle without exceeding its contour.
  • a Two-speed gearbox switch 17 In the transition region of the handle is also a Two-speed gearbox switch 17.
  • a first transmission device 25 In the gap between the tool housing 41 and the transmission 39 is a first transmission device 25, which is an actuation of the Switch 13 by the actuator 24 allows.
  • the first transmission device 25 has an extension 26 with a driving slot 27 for coupling with a second transfer device 28 of the removable Additional handle 3.
  • auxiliary handle 3 Without removable auxiliary handle 3 has the working tool very compact dimensions. That's why and because of the training the drive part 1 as a middle handle is the Work tool as an angle drill. This one owns due to the two-speed transmission 16 a large speed range and allows impact drilling in angular operation.
  • An extension of the field of application of the working tool is by attaching the removable auxiliary handle. 3 reached. This is at one end to a first attachment point 30 of the tool housing 41 and with the the other end at a second attachment point 31 thereof established.
  • the first attachment point 30 is located at the level of the working part 2, the second attachment point 31 on the working part 2 remote from the end of the drive part 1, whereby the auxiliary handle 3 a wide Has support base.
  • guide body 36 of the auxiliary handle 3 shown In the longitudinal section of the second attachment point 31 are guide body 36 of the auxiliary handle 3 shown, the are located in guide grooves 45 behind guide rails 34.
  • the removable auxiliary handle 3 is as so-called Spade handle trained. This allows a torque-free Force introduction into the drilling axis and thereby enables and in conjunction with the low top weight of the working tool a fatigue-free continuous operation. Also offers the additional handle 3 a good finger protection the upstream drive part 1, an important aspect heavy use.
  • the removable auxiliary handle 3 has an additional operating element 29, which at its the handle facing Side arranged and in the removable auxiliary handle 3 is stored in a bearing 44.
  • the auxiliary operating element 29 is connected to the second transmission device 28 connected, in turn, with a her fortified roller 40 in the driving slot 27 of the first transmission device 25 engages and so the connection to the switch 13 manufactures. This is also with the Additional actuating element 29 of the switch 13 actuated and Thus, a one-handed operation of the working tool with the removable additional handle 3 possible.
  • Fig. 2 shows a longitudinal section through the hand-held working tool without detachable additional handle 3, with position information of sections A-A, B-B, C1-C1 and C2-C2 and with a view Z. These sections and the view Z serve the representation of the first and second attachment point 30, 31 on the tool housing 41.
  • the longitudinal section through the second attachment point 31 shows guide rails 34 with Openings 46 and guide grooves 45 lying behind.
  • Fig. 2a the section A-A through the first attachment point 30, with receptacles 32 for pin 33rd the removable auxiliary handle 3.
  • the left half of Fig. 2a is the engagement position of the pin 33, in the right half of its detent position shown.
  • the seat between the receptacles 32 is provided for the switch 13. Below this is a section through the second transmission device 28 shown.
  • the view Z is on the second attachment point 31, with guide rails 34, openings 46 and latching steps 35 of the drive part 1 and guide bodies 36 and locking bodies 37 of the removable auxiliary handle.
  • 3 In the left half of Fig. 2b are the guide body 36 and the locking body 37 in the engaged position, that is the Guide body 36 are in the amount of openings 46 in the guide grooves 45, while the locking body 37 at ramps 47 of the guide rails 34 abut.
  • the removable auxiliary handle 3 in latching position that is, the guide bodies 36 are located in the guide grooves 45 behind the guide rails 34 and the locking body 37 are engaged on the latching steps 35.
  • Fig. 2c shows in the sections C1-C1 and C2-C2, the guide rails 34 and guide grooves 45 of the second attachment point 31.
  • the different width of the guide grooves 45 corresponds to the different strength of the guide body 36, with little play in the guide grooves 45 glide.
  • the offset horizontal section B-B is through the first attachment point 30 and by the actuator 24 is shown with the first transmission device 25.
  • the cranked Shape of the first transmission device 25 and their small thickness allows a space-saving embrace of the transmission 39 and thus allows an ergonomically optimal Position of the actuating element 24 and the handle as well as the space-saving arrangement of the switch 13, the Fig. 2 emerge.
  • Fig. 2e brings the actuator 24 with the first Transfer device 25 as a single component for presentation, while in Fig. 2 the same shown in the installed position becomes.
  • the extension 26 of the first transmission device 25 is the driving slot 27 for the roller 40 of second transmission device 28 shown.
  • Fig. 3 shows a longitudinal section through the removable Additional handle 3 with position information of cross sections C1-C1 and C2-C2 and views X and Y.
  • first attachment point 30 are one of the pins 33
  • second attachment point 31 the differently sized guide body 36 and the locking body 37 shown with the arranged on both sides of the second handle 3 Unlocking buttons 38 are connected.
  • the longitudinal section through the removable auxiliary handle. 3 also shows the location and arrangement of the second actuating element 29 with the bearing 44 and the second transmission device 28, the locking of the auxiliary handle 3 with the roller 40 in the cam slot 27 of the first Transmission device 25 engages.
  • Fig. 3a shows the view Y of the removable auxiliary handle 3, with the guide pin 33 of the first attachment point 30 and the second actuator 29 with the second transmission device 28 and its roller 40th
  • the second attachment point 31 with the locking bodies 37 of the removable auxiliary handle 3 and the Guide rails 34 and the latching steps 35 of the drive part 1, on the left half of Fig. 3a in Eingreifposition, on the right half in Click.
  • Fig. 3b shows the two unlocking buttons 38 in Section C1-C1 and C2-C2 in latching and unlocking position (Dashed). It also shows that the unlocking buttons 38 an integral part of the impact resistant Plastic manufactured removable auxiliary handle 3 are and the elasticity of the material for bending joints use. This allows the locking body 37 of the contour the guide rails 34 follow and in the latching steps 35th engage. Fig. 3b also shows the guide body 36 in Cut.
  • Fig. 3c are in the view X of the first attachment point 30 the two pins 33 and in between the second Actuator 29 and the second transmission device 28 is shown.
  • Attaching the removable auxiliary handle 3 to the Work tool happens as follows: The removable Additional handle 3 is with a movement perpendicular to the drive part 1 set so that the guide body 36 through the openings 46 of the guide rails 34 in the guide grooves 45 arrive. Then the removable auxiliary handle 3 in the direction of working part 2 parallel to the drive part. 1 postponed. The guide body 36 slide with low Play in the guide grooves 45 through the guide rails 34 are formed.
  • the roller 40 penetrate the second transmission device 28 in the driving slot 27 of the first transmission device 25 and the Spigot 33 in receptacles 32 of the first attachment point 30th a, until the locking body 37 engage in the latching steps 35 and the parallel shift of the removable auxiliary handle 3 at stops 48 of the pins 33 in the recordings 32 ends.
  • the removal of the removable auxiliary handle 3 takes place after pressing the unlocking buttons 38 in reverse order.
  • the unlocking buttons 38 move the locking body 37 from the latching steps of the guide rails 34 and thus release the reverse parallel movement. This Everything happens without tools and with little effort.
  • Figs. 4, 4a, b and c show other switches 13a, in a displaceable, cup-shaped Between housing 42 slidably disposed with the bottom 43 are.
  • the switching pin of the other switch 13a facing the bottom 43.
  • the other switches 13a are from separate transmission devices 25a, 28a opposite sides directly or over the bottom 43 of the Intermediate housing 42 actuated.
  • the actuator 29a is moved in parallel during operation. It attacks in a fork of the second transmission means 28a and triggers thereby a tilting movement of the same, which for Operation of the other switch 13a leads.
  • Fig. 4a shows the other switch 13a in reverse mounting position.
  • Fig. 5 shows the hand-held working tool with firmly attached Additional handle 3 '. It is largely identical with the working tool of Fig. 1 and bears its numbering. Since the auxiliary handle 3 'integral with the Tool housing 41 is formed, eliminating the numbering the attachment points 30, 31 and their details. The auxiliary handle 3 'can also be attached to the tool housing 41 be executed screwed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Portable Power Tools In General (AREA)

Claims (10)

  1. Outil de travail guidé à la main, en particulier visseuse-perceuse ou marteau perforateur, avec une partie d'entraínement (1) présentant un moteur électrique (4) et une partie de travail (2) située transversalement à la partie d'entraínement (1), qui est reliée par un engrenage (39) à la partie d'entraínement (1), la section, recevant la partie d'entraínement (1), du boítier d'outil (41) étant disposée dans la zone centrale de la section, recevant la partie de travail (2), du boítier d'outil (41) et étant conçue comme une poignée avant, avec une poignée supplémentaire (3) arrière, qui est fixée au moyen d'un premier point de fixation (30) à la hauteur de la partie de travail (2) sur le boítier d'outil (41) et au moyen d'un deuxième point de fixation (31) sur l'extrémité, opposée à la partie de travail (2), de la poignée avant et présente sur le côté tourné vers la poignée avant un élément d'actionnement (29) pour un interrupteur (13, 13a) électrique pour la mise en route et l'arrêt du moteur électrique (4), caractérisé en ce que l'interrupteur (13, 13a) est disposé dans la partie de travail (2) et - vu dans le sens du travail - avant l'engrenage (39), en ce que sur le côté, opposé à la poignée supplémentaire (3) arrière, de la poignée avant est disposé un autre élément d'actionnement (24) qui est couplé avec l'interrupteur (13, 13a) au moyen d'un premier système de transmission (25, 25a) disposé dans une fente entre le boítier d'outil (41) et l'engrenage (39) et en ce que l'élément d'actionnement (29) disposé dans la poignée supplémentaire (3, 3') arrière agit sur l'interrupteur (13, 13a) commun au moyen d'un second système de transmission (28, 28a) s'engageant dans le boítier d'outil (41).
  2. Outil de travail selon la revendication 1, caractérisé en ce que le second système de transmission (28, 28a) s'engage de façon amovible dans le premier système de transmission (25, 25a).
  3. Outil de travail selon la revendication 1, caractérisé en ce que l'interrupteur (13a) est guidé de façon coulissante dans un boítier intermédiaire (42) et le boítier intermédiaire (42) est logé de façon coulissante dans le boítier d'outil (41), le premier système de transmission (25a) agissant sur l'interrupteur (13a) et le second système de transmission (28a) sur le boítier intermédiaire (42).
  4. Outil de travail selon la revendication 3, caractérisé en ce que le boítier intermédiaire (42) est conçu en forme de pot et la broche de commutation de l'interrupteur (13a) est tournée vers le fond (43) du boítier intermédiaire (42).
  5. Outil de travail selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'interrupteur (13, 13a) est conçu comme un actionneur de régime.
  6. Outil de travail selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la poignée supplémentaire (3) arrière est conçue de façon détachable et est amovible de préférence sur les deux points de fixation (30, 31) du boítier d'outil (41).
  7. Outil de travail selon la revendication 6, caractérisé en ce que le système de transmission (25, 25a ; 28, 28a) s'accouple et se désaccouple automatiquement lors de l'encliquetage et du désencliquetage de la poignée supplémentaire (3) détachable.
  8. Outil de travail selon la revendication 6, caractérisé en ce que sur les points de fixation (30, 31) sont prévus des éléments de guidage dans lesquels des composants attribués de la poignée supplémentaire (3) détachable s'engagent par un déplacement perpendiculairement à la partie d'entraínement (1) et parviennent dans une position d'encliquetage par un déplacement parallèle à celle-ci.
  9. Outil de travail selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un système d'encliquetage amovible est disposé sur l'un des deux points de fixation (30, 31), le point de fixation étant conçu de préférence comme une plaque de fermeture.
  10. Outil de travail selon la revendication 8 ou 9, caractérisé en ce que l'un des points de fixation (30, 31) présente au moins un logement (32) dans lequel un pivot (33) attribué de la poignée supplémentaire (3) détachable peut être introduit, un logement (32) étant disposé de préférence des deux côtés de l'interrupteur (13, 13a) pour respectivement un pivot.
EP19980108409 1997-05-12 1998-05-08 Outil à main Expired - Lifetime EP0878273B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19719850 1997-05-12
DE19719850 1997-05-12
DE19735506 1997-08-16
DE19735506A DE19735506C2 (de) 1997-05-12 1997-08-16 Handgeführtes Arbeitswerkzeug

Publications (3)

Publication Number Publication Date
EP0878273A2 EP0878273A2 (fr) 1998-11-18
EP0878273A3 EP0878273A3 (fr) 2001-05-02
EP0878273B1 true EP0878273B1 (fr) 2004-12-01

Family

ID=26036493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980108409 Expired - Lifetime EP0878273B1 (fr) 1997-05-12 1998-05-08 Outil à main

Country Status (1)

Country Link
EP (1) EP0878273B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443675B1 (en) * 2000-02-17 2002-09-03 Roto Zip Tool Corporation Hand-held power tool
EP1238761A1 (fr) * 2001-03-07 2002-09-11 Snap-on Technologies, Inc. Outil équilibré à mouvement rotatif motorisé
SE522871C2 (sv) * 2001-11-28 2004-03-16 Electrolux Abp Elektrisk arbetsmaskin
US7854054B2 (en) 2003-01-08 2010-12-21 Robert Bosch Tool Corporation Attachment for power tool
CA2454900C (fr) 2003-01-08 2011-12-13 Credo Technology Corporation Accessoire pour outil electrique
DE102004063174A1 (de) * 2004-12-29 2006-07-13 Robert Bosch Gmbh Handwerkzeugmaschine mit einem Stabhandgriff
GB0601992D0 (en) * 2006-02-01 2006-03-15 Gmca Pty Ltd Power tool with removable handle
GB2446234A (en) * 2007-02-01 2008-08-06 Gmca Pty Ltd Power tool with removable handle portion
US8393835B2 (en) * 2009-06-16 2013-03-12 Robert Bosch Gmbh Detachable operating handle for a power tool
US8418778B2 (en) 2010-01-07 2013-04-16 Black & Decker Inc. Power screwdriver having rotary input control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7922984V0 (it) * 1979-10-29 1979-10-29 Star Utensili Elett Utensile elettrico portatile con comandi perfezionati.
JP3493645B2 (ja) * 1995-02-17 2004-02-03 日立工機株式会社 コードレス締結工具
US5598892A (en) * 1995-06-26 1997-02-04 Marilyn S. Fox Tool extender
JP3514034B2 (ja) * 1996-05-10 2004-03-31 日立工機株式会社 シャーレンチ

Also Published As

Publication number Publication date
EP0878273A3 (fr) 2001-05-02
EP0878273A2 (fr) 1998-11-18

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