EP2460630A1 - Appareil de travail manuel - Google Patents

Appareil de travail manuel Download PDF

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Publication number
EP2460630A1
EP2460630A1 EP11009358A EP11009358A EP2460630A1 EP 2460630 A1 EP2460630 A1 EP 2460630A1 EP 11009358 A EP11009358 A EP 11009358A EP 11009358 A EP11009358 A EP 11009358A EP 2460630 A1 EP2460630 A1 EP 2460630A1
Authority
EP
European Patent Office
Prior art keywords
throttle lever
throttle
mode selector
latching
lever
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.)
Granted
Application number
EP11009358A
Other languages
German (de)
English (en)
Other versions
EP2460630B1 (fr
Inventor
Patrick Schlauch
Roland Adam
Heiko Stöcker
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.)
Andreas Stihl AG and Co KG
Original Assignee
Andreas Stihl AG and Co KG
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 Andreas Stihl AG and Co KG filed Critical Andreas Stihl AG and Co KG
Publication of EP2460630A1 publication Critical patent/EP2460630A1/fr
Application granted granted Critical
Publication of EP2460630B1 publication Critical patent/EP2460630B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00Chain saws; Equipment therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/20Control lever and linkage systems
    • Y10T74/20396Hand operated
    • Y10T74/20402Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042Flexible transmitter [e.g., Bowden cable] and hand operator
    • Y10T74/20438Single rotatable lever [e.g., for bicycle brake or derailleur]

Definitions

  • the invention relates to a hand-held implement of the type specified in the preamble of claim 1.
  • a hand-held implement with an upper handle, namely a top-hand saw, known.
  • a mode selector On the handle a mode selector, a throttle lever and a throttle lock are pivotally mounted, wherein the mode selector and the throttle cooperate in the starting position of the mode selector and the throttle lever.
  • the detent elements of mode selector and throttle lever defining the start position are arranged so that the mode selector can be pressed into the starting position when the throttle lever is not actuated.
  • the throttle is pivoted. This pivoting movement is locked when not activated throttle lock. However, if the throttle lever lock is pressed, the starting position can be inserted without the throttle lever is actuated.
  • the invention has for its object to provide a hand-held implement of the generic type, which allows insertion of the starting position only when the throttle is depressed.
  • the mode selector can be pivoted freely when not actuated throttle. There is no catch between the mode selector and the throttle. The mode selector is therefore moved back to the operating position due to its spring load when released from the starting position. Inserting the starting position without first pressing the throttle lever is not possible.
  • the second locking element when adjusting the throttle lever from the unactuated position in the full throttle position, the second locking element is pivoted by the pivoting of the first locking element.
  • the second latching element In full throttle position, the second latching element is advantageously outside the pivoting path of the first latching element.
  • the position outside of the pivoting path comprises both a position relative to the pivot axis of the throttle lever radially outside the pivoting path and a position radially within the pivoting path.
  • the second locking element is in the unactuated position of the throttle lever radially outside and in full throttle position radially within the pivoting path of the first locking element, so has in the unactuated position a larger and full throttle position a smaller distance from the pivot axis of the throttle lever than the first locking element.
  • the mode selector can thus be adjusted only when the throttle lever has been adjusted so far that the second locking element is outside the pivoting path of the first locking element.
  • the first latching element lies in the starting position of the operating mode actuator in the pivoting path of the second latching element.
  • the second locking element comes after releasing the throttle lever to rest on the first locking element and is held in the starting position.
  • the locking elements extend in the direction of the pivot axis of the throttle lever.
  • the locking of the locking elements is released, wherein at least one of the locking elements in the direction of the pivot axis of the throttle lever is deflected away from the other locking element.
  • the deflection in the direction of the pivot axis to release the locking can be ensured that the throttle lever is not further actuated when pivoting the mode selector from the start position to the off position.
  • at least one of the latching elements is elastically deformed when releasing the latching.
  • At least one of the locking elements has a portion inclined to the pivot axis of the throttle lever, which slides on pivoting of the mode selector from the starting position to the off position on the other locking element.
  • the inclined portion may be straight, such as a chamfer, or arcuate, such as in a radius.
  • one of the locking elements is a pin.
  • a pin is simple and can be produced with low tolerances and can be easily manufactured in the production of the mode selector made of plastic with the mode selector. Also, the verification of compliance with the required tolerances is easily possible with a pin, as a pin can be easily measured.
  • the inclined to the pivot axis of the throttle lever extending portion is advantageously arranged at the free end of the pin.
  • a chamfer or a radius can be very easily formed at the free end of the pin, so that results in a simple design.
  • a radius is considered to be particularly advantageous because sharp edges on the pin can thereby be avoided.
  • one of the latching elements is an arcuate wall section which forms a receptacle for the other latching element. Due to the arched design a secure locking is achieved.
  • the pin can be hung behind the arcuate section and is held so securely.
  • the wall section is arranged in particular on an arm of the gas lever.
  • the arcuate shape of the wall portion prevents simultaneous insertion of the starting position of the Radiostellstellers without sufficient operation of the throttle lever.
  • the pin In detent position, the pin is advantageously on the concave side of the wall portion.
  • the mode selector To insert In the starting position, the mode selector must rest on the convex side of the wall section and press against the convex wall section. Due to the arcuate shape of the wall portion of the force exerted by the pin force of the throttle lever is pivoted, and inserting the starting position is not possible.
  • the mode selector has a receptacle for a contact pin.
  • the contact pin can interact with the contact spring of an ignition device and short-circuit the drive motor designed as an internal combustion engine in the off position of the mode selector.
  • a desired spring load of the mode selector can be achieved via the contact spring.
  • the pivot axes of throttle lever, throttle lock and mode selector are parallel to each other and have a distance to each other.
  • the throttle lever engages an actuating element for actuating a drive motor of the working device.
  • the distance between the point of application of the actuating element to the second locking element is advantageously up to about one third of the distance of the point of application of the actuating element to the pivot axis of the throttle lever. Due to the comparatively small distance of the point of application to the locking element are achieved for the starting position, which is set by the actuator, low tolerances. It can be achieved in a simple manner, a precise position, for example, a throttle element in the starting position.
  • Fig. 1 shows as an exemplary embodiment of a hand-held implement a chainsaw 1.
  • the chainsaw 1 is in Fig. 1 shown in a usual parking position.
  • the power saw 1 has a housing 2 which is parked in the parking position on the floor or a storage area.
  • a guide rail 5 projects to the front, on which a saw chain 6 is driven in rotation.
  • the saw chain 6 is driven by a housing 2 arranged in the drive motor 10, which is designed as an internal combustion engine.
  • the drive motor 10 is supplied via a carburetor 11 and an intake passage 12 fuel and combustion air. It can also be provided to supply the fuel directly to the drive motor 10.
  • the carburetor 11 is in a rear, the guide rail 5 remote region of an upper handle 3 is arranged.
  • the upper handle 3 is arranged on the upwardly projecting in Abstellposition side of the housing 2 and fixed to the housing 2 via anti-vibration elements, not shown.
  • the upper handle 3 serves as a carrying handle.
  • a throttle lever lock 7, a throttle lever 8 and a mode selector 9 are pivotally mounted.
  • Adjacent to the front end of the upper handle 3, a hand guard 4 is arranged, which serves to trigger a chain brake for the saw chain 6.
  • the throttle lock 7 is pivotally mounted about a pivot axis 13.
  • the throttle lock 7 has a locking shoulder 17, which prevents actuation of the throttle lever 8 in the unactuated position of the throttle lock 7.
  • the locking collar 17 is adjacent to a locking edge 18 of the throttle lever 8.
  • the throttle lever 8 is pivotally mounted about a pivot axis 14 which has a distance a to the pivot axis 13 of the throttle lever lock 7.
  • To accelerate the throttle lever 8 is pivoted in the direction of the arrow 26 about the pivot axis 14.
  • the throttle lever 8 has an arm 22 to which a gas linkage 16 is suspended for actuating a throttle element arranged in the carburetor 11.
  • the throttle linkage 16 is suspended in an opening 28 of the arm 22.
  • Adjacent to its free end, an arcuate wall portion 20 is disposed on the arm 22, which is offset from the surface of the arm 22 in the direction of the pivot axis 14.
  • the mode selector 9 is pivotally mounted about a pivot axis 15, the distance to the pivot axis 14 of the throttle lever 8 b and the pivot axis 13 of the throttle lock 7 has a distance c.
  • the mode selector 9 has an in Fig. 2 shown pin 21.
  • the pin 21 and the wall portion 20 form locking elements which cooperate in the starting position.
  • the wall portion 20 defines a pivoting path 44 and the pin 21 a pivoting 45th Fig. 2 shows the mode selector 9 in the operating position 40.
  • the throttle lever 8 is arranged in the unactuated position 48. In this position, the wall portion 20 is outside the pivoting path 45 of the pin 21.
  • the mode selector 9 can be moved freely in this position, without the pin 21 in engagement with the wall portion 20 can come. This prevents that when the throttle lever 8 is operated, a latching between mode selector 9 and throttle lever 8 can take place.
  • Fig. 3 shows the throttle lever 8 in the de-energized position 48 and the mode selector 9 in the off position 42.
  • the mode selector 9 was compared with the in Fig. 2 shown operating position 40 pivoted in the direction of arrow 25.
  • the mode selector 9 has an arm 24 which projects radially to the pivot axis 15 in the direction of the throttle lever 8.
  • off position 42 of the arm 24 is located on a stop, not shown, of the handle 3.
  • the arm 24 is designed so that it rests in any position of the throttle lever 8 on the stop, so that regardless of the position of the throttle lever 8, a stop for the off position 42 is given.
  • the arcuate wall portion 20 forms a receptacle 43 for the pin 21st
  • the throttle linkage is on the arm 22 of the throttle lever in an opening 28 (FIG. Fig. 8 ), which has a distance e to the pivot axis 14 of the throttle lever.
  • the opening 28 has a distance d from the wall section 20 that is up to one third of the distance e ( Fig. 3 ). Due to the small distance of the suspension of the gas linkage 16 for locking an accurate positioning of the gas linkage 16 is achieved in the starting position.
  • Fig. 4 shows the throttle 8 in full throttle position 47.
  • the throttle lever 8 was from the in Fig. 2 shown position in the direction of arrow 26, in the illustrations in the clockwise direction, pivoted.
  • the throttle lock 7 was first pressed.
  • the locking collar 17 enters a receptacle 19 in the throttle lever 8.
  • the locking edge 18 of the throttle lever 8 can swing freely past the locking shoulder 17.
  • the wall portion 20 is pivoted by the pivoting path 45 of the pin 21.
  • the pivoting path 44 of the wall portion 20 intersects the pivoting path 45 of the pin 21 and when accelerating the wall portion 20 is moved from the lying with respect to the pivot axis 15 radially outward of the pivoting path 45 lying on the side lying radially within the pivoting path 45 side.
  • the Mode selector 9 in the direction of arrow 27, in Fig. 4 thus counterclockwise, pivoted. If the throttle lever 8 is then released, the wall section 20 hangs on the pin 21. This is in Fig. 5 shown.
  • the throttle lever 8 is held in a starting position 46, in which the throttle lever 8 is partially actuated, that is adjusted from the unactuated position partially in the direction of the full throttle position.
  • the pin 21 is in the receptacle 43 when the throttle lever 8 in start position 46 and the mode selector 9 are in start position 41.
  • the throttle lever lock 7 is pivotally mounted with a bearing pin 35 in the upper handle 3.
  • the throttle lever 8 has a receptacle 39, in which a bearing pin 36 is arranged for pivotal mounting in the upper handle 3.
  • the mode selector 9 has a hollow bearing shaft 32, with which it is pivotally mounted in the handle 3.
  • Fig. 7 illustrates the position of the pin 21 in the receptacle 43, which is formed by the wall portion 20.
  • the mode selector 9 has a cover wall 34 which extends in a circular arc around the pivot axis 15.
  • the cover wall 34 covers an opening formed in the upper handle 3 opening, through which an actuating portion 37 of the mode selector 9 protrudes.
  • the throttle lever 8 has an operating portion 38 which protrudes from the upper handle 3 and is operated by the operator.
  • a chamfer 29 is formed on the pivoting path 45 of the pin 21 in the unactuated position 48.
  • a chamfer 30 is arranged, which will be described in more detail below.
  • FIGS. 11 and 12 show, is formed on the bearing shaft 32 of the mode selector 9 in the axial direction of the pivot axis 15 adjacent to the actuating portion 37, a receptacle 33 for a contact pin.
  • the FIGS. 11 and 12 also show the possesses Pin 21 at its free end a radius 31, which allows the release of the starting position 41 by lateral deflection of the wall portion 20. If the mode selector 9 from the in the Fig. 5 to 7 The starting position 41 shown in the off position 42, the radius 31 causes a lateral deflection of the arm 22 with the wall portion 20. The radius 31 slides on the wall portion 20 and deflects it in the direction of the pivot axis 14 of the throttle lever 8.
  • a release of the detent position is possible with a corresponding effort, so that the off position 42 can be inserted from the starting position 41 alone by pressing the mode selector 9.
  • an elastic deformation of the pin 21 and / or the wall portion 20 may be provided for releasing the locking. Characterized in that the wall portion 20 and / or the pin 21 to move in the axial direction of the pivot axis 14 and not in the circumferential direction to the pivot axis 14, an actuation of the throttle lever 8 when releasing the detent position is avoided.
  • a release of the starting position is also possible in the usual way by accelerating. In this case, the wall portion 20 pivots out of the pivoting path 45 of the pin 21, whereby the latching is released.
  • the bearing shaft 32 has directly adjacent to the cover wall 34, on which the pin 21 is disposed, a recess 49 into which the arm 22 of the throttle lever 8 in the in Fig. 4 full throttle position shown dives.
  • the chamfers 29 and 30 are provided on the throttle lever 8. The chamfers 29 and 30 are used when accelerating as insertion bevels.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Control Devices (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Particle Accelerators (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Harvester Elements (AREA)
EP11009358.0A 2010-12-01 2011-11-25 Appareil de travail manuel Active EP2460630B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010053086A DE102010053086A1 (de) 2010-12-01 2010-12-01 Handgeführtes Arbeitsgerät

Publications (2)

Publication Number Publication Date
EP2460630A1 true EP2460630A1 (fr) 2012-06-06
EP2460630B1 EP2460630B1 (fr) 2014-01-08

Family

ID=45065609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11009358.0A Active EP2460630B1 (fr) 2010-12-01 2011-11-25 Appareil de travail manuel

Country Status (5)

Country Link
US (1) US8739894B2 (fr)
EP (1) EP2460630B1 (fr)
CN (1) CN102672688B (fr)
DE (1) DE102010053086A1 (fr)
ES (1) ES2457240T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800835B2 (en) * 2008-07-17 2014-08-12 Stanley Fastening Systems, Lp Fastener driving device with mode selector and trigger interlock
JP2014117761A (ja) * 2012-12-14 2014-06-30 Makita Corp 動力工具
DE102012025309A1 (de) * 2012-12-22 2014-06-26 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät mit einem Antriebsmotor zum Antrieb mindestens eines Werkzeugs und Verfahren zu dessen Betrieb
DE102013009668B4 (de) 2013-06-08 2022-01-05 Andreas Stihl Ag & Co. Kg Verbrennungsmotor mit einer Starteinrichtung
DE102013009669B4 (de) * 2013-06-08 2022-01-05 Andreas Stihl Ag & Co. Kg Verbrennungsmotor mit einer Starteinrichtung
EP3094852B1 (fr) * 2013-11-22 2019-05-01 Husqvarna AB Système de démarrage en une seule étape
JP6415934B2 (ja) * 2014-11-10 2018-10-31 株式会社やまびこ ワイヤースロットル調整装置
EP3315273B1 (fr) * 2016-10-31 2019-06-05 Andreas Stihl AG & Co. KG Appareil de travail portatif
EP3354892B2 (fr) * 2017-01-30 2023-11-22 Andreas Stihl AG & Co. KG Outil de travail portatif comprenant un moteur à combustion et un dispositif de démarrage électrique
DE102019126493A1 (de) * 2019-10-01 2021-04-01 Steinel Gmbh Elektrisches, pistolenartiges Handgerät
CN112038137A (zh) * 2020-09-23 2020-12-04 格力博(江苏)股份有限公司 开关组件及电动工具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079708A (en) * 1975-03-05 1978-03-21 Andreas Stihl Maschinenfabrik Control device for the engine of an engine driven saw
DE3608941A1 (de) * 1986-03-18 1987-09-24 Stihl Maschf Andreas Gashebel-schaltvorrichtung fuer motorisch angetriebene, handgefuehrte arbeitsgeraete, insbesondere motorkettensaegen
US6108867A (en) * 1997-05-14 2000-08-29 Kioritz Corporation Handling device for power working machine
DE4120876C2 (de) 1991-06-21 2003-03-06 Stihl Maschf Andreas Arbeitsgerät, insbesondere Motorkettensäge

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US4946087A (en) * 1985-11-01 1990-08-07 Arrow Fastener Company, Inc. Staple driving tool
US5239891A (en) * 1991-10-07 1993-08-31 Ford Motor Company Cam follower variable ratio throttle linkage
JP3237997B2 (ja) * 1994-04-25 2001-12-10 株式会社共立 内燃機関用スロットルの安全装置
SE509962C2 (sv) * 1996-02-22 1999-03-29 Electrolux Ab Anordning för reglering av en förgasare till en förbränningsmotor
JP3576749B2 (ja) * 1997-05-16 2004-10-13 株式会社共立 動力作業機用ハンドル装置
JP3713455B2 (ja) * 2001-10-19 2005-11-09 株式会社共立 作業機
SE0203159D0 (sv) * 2002-10-25 2002-10-25 Electrolux Ab Handtag till ett motordrivet handhållet verktyg
DE10332242A1 (de) * 2003-07-16 2005-02-03 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät
SE0302439D0 (sv) * 2003-09-12 2003-09-12 Electrolux Ab Throttle control device for a hand held tool
JP4467044B2 (ja) * 2003-11-28 2010-05-26 本田技研工業株式会社 動力作業機
CA2610033C (fr) * 2005-06-13 2010-11-09 Shindaiwa Kogyo Co., Ltd. Outil a main electrique
CN101042076B (zh) * 2006-03-23 2011-04-20 安德烈亚斯·斯蒂尔两合公司 内燃机的汽化装置
CN201092068Y (zh) * 2007-09-06 2008-07-30 黄理 一种电链锯
US8156656B2 (en) * 2009-05-07 2012-04-17 Black & Decker Inc. Hedgetrimmer with rotatable rear handle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079708A (en) * 1975-03-05 1978-03-21 Andreas Stihl Maschinenfabrik Control device for the engine of an engine driven saw
DE3608941A1 (de) * 1986-03-18 1987-09-24 Stihl Maschf Andreas Gashebel-schaltvorrichtung fuer motorisch angetriebene, handgefuehrte arbeitsgeraete, insbesondere motorkettensaegen
DE4120876C2 (de) 1991-06-21 2003-03-06 Stihl Maschf Andreas Arbeitsgerät, insbesondere Motorkettensäge
US6108867A (en) * 1997-05-14 2000-08-29 Kioritz Corporation Handling device for power working machine

Also Published As

Publication number Publication date
US8739894B2 (en) 2014-06-03
CN102672688A (zh) 2012-09-19
CN102672688B (zh) 2016-04-06
US20120138326A1 (en) 2012-06-07
DE102010053086A1 (de) 2012-06-06
EP2460630B1 (fr) 2014-01-08
ES2457240T3 (es) 2014-04-25

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