EP2910339B1 - Poignée pour un appareil de travail doté d'un moteur d'entraînement - Google Patents

Poignée pour un appareil de travail doté d'un moteur d'entraînement Download PDF

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Publication number
EP2910339B1
EP2910339B1 EP15000360.6A EP15000360A EP2910339B1 EP 2910339 B1 EP2910339 B1 EP 2910339B1 EP 15000360 A EP15000360 A EP 15000360A EP 2910339 B1 EP2910339 B1 EP 2910339B1
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EP
European Patent Office
Prior art keywords
handle
actuating element
actuator
recess
pressure surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15000360.6A
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German (de)
English (en)
Other versions
EP2910339A1 (fr
Inventor
Klaus Kaupp
Cornelius Gindele
Lothar Kotulla
Pietro-Leon Schilling
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
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Publication date
Application filed by Andreas Stihl AG and Co KG filed Critical Andreas Stihl AG and Co KG
Publication of EP2910339A1 publication Critical patent/EP2910339A1/fr
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Publication of EP2910339B1 publication Critical patent/EP2910339B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions

Definitions

  • the invention relates to a handle for a working device with a drive motor and an actuating handle arranged in the handle for controlling the rotational speed of the drive motor according to the preamble of claim 1.
  • an actuating member is arranged in the handle, which has a pressure surface for supporting the fingers of a user's hand.
  • the actuator In an initial position with the drive motor stopped, the actuator is with its pressure surface above the gripping surface of the handle; the actuator protrudes from the gripping surface of the handle. If the user grips the handle, several fingers rest on the pressure surface of the actuator and adjust this into an operating position for continuous operation of the rotating drive motor.
  • This operating position for continuous operation is usually a regular, maximum operating position. In this operating position, the actuator is immersed in the handle, such that the pressure surface of the actuator is at a level with the gripping surface of the handle.
  • blowers When working with such implements increased loads can occur on the tool, which can lead to jamming of the working tool.
  • blowers there is often a desire to increase the blowing current for a short time to solve badly Remove objects such as damp leaves, damp paper or the like from a substrate.
  • the WO 2013/122267 A1 proposes to provide a control circuit, via which a high operating voltage for an electric drive motor is generated from a low battery voltage.
  • a selector the height of the operating voltage and thus the speed of the drive motor is adjustable by the selector.
  • a setting only changes the power output in the predetermined operating position of the actuator. If an increased power output is desired during operation, the user must adjust the selector; If the increased power output is no longer required, the user must turn back the selector. This is cumbersome and requires in each case a new setting of the desired performance.
  • the invention has for its object to form a handle with an actuator disposed therein such that the user can easily select and hold a maximum operating position of the actuator for continuous operation and beyond can set a selectable additional operating position for increased power output.
  • a recess is formed in the gripping surface of the handle, which extends in the longitudinal direction of the handle.
  • the depression overlaps the pressure surface of the actuator at least partially such that the actuator is to be displaced into a boost position by a user's finger over the recess in the handle, wherein in this boost position the pressure surface of the actuator is within the gripping surface of the handle.
  • This constructive design allows the user to easily select and hold a maximum operating position of the actuator for continuous operation by usually embracing the handle surface of the handle and support his finger on the pressure surface of the actuator. If the user wants to retrieve increased power, he can engage with at least one finger in the depression and pivot the actuator beyond the maximum operating position for continuous operation out into the handle. In this so-called Boost ein the pressure surface of the actuator is within the gripping surface of the handle; in this position can -. B. controlled via an additional switch - an increased power of the electric motor can be accessed. Expediently, a power increase of approximately 10% to 30% over the power in the maximum operating position for continuous operation has proven to be advantageous.
  • the actuator may also be coupled to a potentiometer whose output is fed to a controller for metering the electrical energy.
  • the controller is in accordance with the boost position of the actuator, an increase in performance from approx. 10% to 30% above the power in the regular maximum operating position for continuous operation.
  • the recess has a length extending in the longitudinal direction of the handle, which is smaller than the pressure surface of the actuating member extending in the same direction.
  • the recess may be arranged such that it lies within the longitudinal extent of the handle extending length of the actuator, d. h., That in side view of the handle, the depression in the area of the pressure surface begins and ends.
  • the pressure surface of the actuator is limited by extending in the longitudinal direction of the handle side surfaces, wherein the recess in the gripping surface of the handle is formed on both sides of the actuator.
  • the recess is structurally designed in the longitudinal direction of the handle with a length corresponding to the thickness of a standard finger of a standardized user's hand.
  • the recess has a length of 10 mm to 50 mm, in particular a length of 15 mm to 30 mm.
  • the actuator is to be adjusted against the force of a spring.
  • an increased spring force is overcome.
  • the user feels haptically that he has to overcome an increased actuation resistance before he can pivot the actuator in the Boost ein. This ensures that the Boost ein is not operated unintentionally.
  • the spring providing the increased spring at the same time forms a resilient intermediate stop, which determines the maximum operating position for continuous operation.
  • the Boost ein is associated with the adjustment of the actuator limiting Boostanschlag, whereby the Verschwenkweg of the actuator is structurally limited.
  • the actuator is advantageously a pivot lever, but may also be a displaceable in a backdrop translationally moving lever or the like.
  • FIG. 1 illustrated implement 1 is a blower with a drive motor 2, which is indicated by dashed lines.
  • the implement 1 has an upper handle 3 which is fixed at its rear end 4 and at its front end 5 on the upper side of the housing 6 of the implement 1.
  • An impeller driven by the drive motor 2 sucks in the direction of arrow 7 air through a protective grid and blows them out at the mouth 8 of the blower 9.
  • the implement 1, in the embodiment of the blower is an electrically operated implement 1, that is, has an electric drive motor 2.
  • a battery pack may be inserted, which supplies the electric drive motor 2 with energy.
  • the battery pack can also be worn on the belt of a user or be provided as a back-worn battery pack, in which case a connection cable leads from the battery pack to the implement.
  • an actuator 10 is mounted as a shift lever in the handle 3.
  • the actuator 10 is located near the front end 5 and is - in the embodiment - mounted as a pivot lever in the handle 3 ( Fig. 4 ).
  • the actuator 10 may also be arranged in another way in the handle, z. B. be displaced via a slotted guide.
  • the actuator 10 may be suitably coupled to a potentiometer, not shown, whose output signal is fed to a controller for metering the electrical energy to the drive motor 2.
  • the adjustment of the potentiometer by the actuator takes place against the force of a spring.
  • the spring acts such that the actuator is returned to its original position.
  • a selector switch 11 is also mounted for the electrical adjustment of blower stages. In each selected blower stage, a speed increase with a different pitch is implemented via the Verschwenkweg of the actuator 10.
  • magnified actuator 10 has a pressure surface 12 on which come the fingers 13 of a user hand, not shown.
  • the index finger 13a, the middle finger 13b, the ring finger 13c and the small finger 13d are indicated as circles of different diameters.
  • the pressure surface 12 is, as in particular Fig. 3 shows, essentially of the index finger 13a and the middle finger 13b actuated.
  • the user's hand encompasses the handle housing 14 of the handle 3, the upper side of which forms an envelope 15.
  • This envelope 15 at the same time forms the gripping surface 16, wherein, in particular, the portion of the gripping surface 16 of the handle facing the housing 6 is of importance in the context of the invention.
  • Trained as a shift lever actuator 10 is within a frame formed by the handle 3, its ends 4 and 5 and the housing 6 of the implement 1.
  • the actuator 10 extends in the longitudinal direction of the handle 3, wherein the handle 3 is aligned in the direction of the longitudinal center axis 17 of the implement 1.
  • the trained as a shift lever actuator 10 is in particular in Fig. 4 shown in side view.
  • the actuator 10 is unconfirmed in a starting position 20, as in Fig. 2 is shown.
  • a starting position 20 the rotational speed of an electric drive motor 2 is "zero"; the drive motor 2 stands still.
  • the pressure surface 12 of the actuator 10 is outside the envelope 15; the pressure surface 12 projects beyond the gripping surface 16.
  • a regular operating position 21 of the actuator 10 for a continuous operation of the drive motor 2 the actuator 10 is displaced via the pressure surface 12 of the fingers 13 a and 13 b of the operating hand of a user in the handle housing 14 of the handle 3, as Fig. 3 shows.
  • the actuating member 10 is in such a way by a receiving opening 18 ( Fig. 4 ) of the handle 3 immersed, that the pressure surface 12 of the actuator 10 is at a height H with the gripping surface 16 of the handle 3 ( Fig. 3 ).
  • the pressure surface 12 is essentially subjected to force by the index finger 13a and the middle finger 13b.
  • the maximum position of the regular operating position 21 for the continuous operation of the drive motor 2 is in Fig. 4 reproduced in a sectional view.
  • the actuator 10 is pivotally mounted about a pivot axis 19 in the region of the front end 5 of the handle 3; an acting on the pivotable actuator 10 return spring, which is not shown in detail, exerts a restoring force on the actuator 10 to reset it in the direction of rotation 24 in its initial position 20.
  • Fig. 6 the course of the operating force of the actuating lever is shown as a force curve 40. The actuator 10 is thus to be adjusted against the force of a return spring.
  • a cam 27 of the actuator 10 At the stage 26 is a cam 27 of the actuator 10 then when the actuator 10 against the direction of rotation 24th is pivoted into its maximum, regular operating position 21 for continuous operation.
  • This emergence of the cam 27 on the step 26 of the spring 23 is shown in the force curve 40 as a power peak 41.
  • the cam 27 engages the step 26 the user senses the increased operating force (force peak 41) and can thus determine that he has reached the regular, maximum operating position 21 of the actuator 10 for continuous operation.
  • This maximum, regular operating position 21 is electrically designed such that the longest possible operating time of the implement 1 is achieved with a connected battery pack.
  • the design is such that a sufficiently high performance is provided, which is necessary for regular work.
  • a boost position 33 is associated with the actuator, as explained in more detail below.
  • a recess 30 is formed which extends in the longitudinal direction 28 of the handle 3.
  • a recess 30 in the gripping surface 16 of the handle 3, so that the recess extends transversely to the longitudinal direction 28 of the handle 3.
  • the recess 30 at least partially overlaps the pressure surface 12 of the actuating member 10, such that the actuating member 10 in a boost position 33 by z. B. a finger 13a of the user's hand on the recess 30 can be moved further into the handle 3.
  • the actuator 10 can thus be pivoted beyond the maximum operating position for continuous operation in the Boost ein 33, in which the pressure surface 12 of the actuator 10 is within the envelope 15 of the handle 3, ie within the gripping surface 16 of the handle 3.
  • Fig. 5 shown.
  • the user can by intervention z. B. the index finger 13a pivot into the recess 30, the actuator 10 in the Boost ein 33; in this boost position 33, the rotational speed of the drive motor 2 is significantly increased, for. B. by up to 30% compared to the speed in the maximum, regular operating position 21 for continuous operation ( Fig. 3 ) elevated.
  • the corresponding speed curve 50 is in Fig. 6 shown.
  • the recess 30 has a length L measured in the longitudinal direction 28 of the handle 3 (FIG. Fig. 2
  • the arrangement in the longitudinal direction 28 of the handle 3 is further provided so that the recess 30 within the extending in the longitudinal direction 28 of the handle 3 Length D the pressure surface 12 of the actuator 10 is located.
  • the arrangement is such that the recess 30 is formed in the gripping surface 16 of the handle 3 on both side surfaces 29 of the actuator 10, the two parallel to the longitudinal direction 28 of the handle extending side surfaces 29 of the actuator 10, the pressure surface 12 laterally limit.
  • the length L of the recess 30 extending in the longitudinal direction 28 corresponds at least to the thickness of a finger 13 of a typical user's hand. It is structurally provided that the recess has a length L of 10 mm to 50 mm, such that a large number of users with the user's hand or one or two fingers 13 of the user's hand move the actuator 10 via the recess 30 in the Boost ein 33 can.
  • the length L may be provided so that only one finger -. B. the index finger 13a - Boost position 33 of the actuator 10 can trigger what a length of 15 mm to 30 mm is advantageous. It may be appropriate to extend the length up to 50 mm, so that two fingers of the user can simultaneously dive into the recess 30 to adjust the actuator 10 in the Boost ein 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)
  • Manipulator (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (11)

  1. Poignée pour un appareil de travail (1) doté d'un moteur d'entraînement (2),
    - avec un boîtier de poignée (14) dont le côté supérieur forme une surface de préhension (16) de la poignée (3),
    - et avec un organe d'actionnement (10), disposé dans la poignée (3), pour commander la vitesse de rotation du moteur d'entraînement (2),
    - l'organe d'actionnement (10) comportant une surface de pression (12) pour un actionnement par les doigts (13) d'une main d'utilisateur,
    - et dans une position de départ (20), l'organe d'actionnement (10) dépassant, avec sa surface de pression (12), de la surface de préhension (16) de la poignée (3),
    - et l'organe d'actionnement (10), dans une position de fonctionnement (21) pour un fonctionnement continu du moteur d'entraînement (2), étant rentré dans la surface de préhension (16) de la poignée (3) de telle sorte que la surface de pression (12) dudit organe d'actionnement (10) se trouve à la même hauteur que la surface de préhension (16) de la poignée (3),
    caractérisée
    - en ce que dans la zone de l'organe d'actionnement (10), un creux (30) qui s'étend dans la surface de préhension (16) dans le sens longitudinal (28) de la poignée (3) est formé dans le boîtier (14) de ladite poignée (3),
    - en ce que le creux (30) et la surface de pression (12) de l'organe d'actionnement (10) se recouvrent au moins partiellement, de telle sorte que l'organe d'actionnement (10), au-delà de la position de fonctionnement pour le fonctionnement continu, dans une position d'amplification (33), est amené dans le creux (30) de la poignée (3),
    - la surface de pression (12) de l'organe d'actionnement (10), dans la position d'amplification (33), se trouvant à l'intérieur de la surface de préhension (16) de la poignée (3).
  2. Poignée selon la revendication 1,
    caractérisée en ce que le creux (30) présente une longueur (L), dans le sens longitudinal (28) de la poignée (3), qui est plus petite que la surface de pression (12), dans le même sens, de l'organe d'actionnement (10).
  3. Poignée selon la revendication 2,
    caractérisée en ce que le creux (30) se trouve à l'intérieur de la longueur (D), dans le sens longitudinal (28) de la poignée (3), de la surface de pression (12) de l'organe d'actionnement (10).
  4. Poignée selon la revendication 1,
    caractérisée en ce que la surface de pression (12) de l'organe d'actionnement (10) est délimitée par des surfaces latérales (29) de l'organe d'actionnement (10) qui s'étendent dans le sens longitudinal (28) de la poignée (3), et le creux (30) prévu dans la surface de préhension (16) de la poignée (3) est formé sur les deux surfaces latérales (29) de l'organe d'actionnement (10).
  5. Poignée selon la revendication 2,
    caractérisée en ce que le creux (30) présente une longueur (L) de 10 mm à 50 mm.
  6. Poignée selon la revendication 5,
    caractérisée en ce que le creux (30) présente une longueur (L) de 15 mm à 30 mm.
  7. Poignée selon la revendication 1,
    caractérisée en ce que l'organe d'actionnement (10) doit être déplacé à l'encontre de la force d'un ressort.
  8. Poignée selon la revendication 7,
    caractérisée en ce que pour déplacer l'organe d'actionnement (10) et le faire passer de la position de fonctionnement (21) pour le fonctionnement continu à la position d'amplification (33), il faut surmonter une force de ressort accrue.
  9. Poignée selon la revendication 8,
    caractérisée en ce qu'un ressort (23) forme une butée intermédiaire à ressort qui définit la position de fonctionnement (21) pour le fonctionnement continu.
  10. Poignée selon la revendication 1,
    caractérisée en ce qu'une butée d'amplification (31) qui limite la course de l'organe d'actionnement (10) est associée à la position d'amplification (33).
  11. Poignée selon la revendication 1,
    caractérisée en ce que l'organe d'actionnement (10) est un levier pivotant.
EP15000360.6A 2014-02-19 2015-02-07 Poignée pour un appareil de travail doté d'un moteur d'entraînement Active EP2910339B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014002290.0A DE102014002290A1 (de) 2014-02-19 2014-02-19 Handgriff für ein Arbeitsgerät mit einem Antriebsmotor

Publications (2)

Publication Number Publication Date
EP2910339A1 EP2910339A1 (fr) 2015-08-26
EP2910339B1 true EP2910339B1 (fr) 2016-12-14

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ID=52464126

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Application Number Title Priority Date Filing Date
EP15000360.6A Active EP2910339B1 (fr) 2014-02-19 2015-02-07 Poignée pour un appareil de travail doté d'un moteur d'entraînement

Country Status (4)

Country Link
US (1) US9815188B2 (fr)
EP (1) EP2910339B1 (fr)
CN (1) CN104842326B (fr)
DE (1) DE102014002290A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106231970B (zh) 2014-04-24 2019-03-01 胡斯华纳有限公司 鼓风机
DE102015012043A1 (de) * 2015-09-15 2017-03-16 Andreas Stihl Ag & Co. Kg Verfahren zur Inbetriebnahme eines handgeführten Arbeitsgerätes mit einem Elektromotor
DE102017222915A1 (de) * 2017-12-15 2019-06-19 Robert Bosch Gmbh Antriebsmodul, Werkzeugmodulsystem mit einem Antriebsmodul und Verfahren zum Betrieb eines Antriebsmoduls
DE102018217991A1 (de) * 2018-10-22 2020-04-23 Robert Bosch Gmbh Betätigungseinheit
AU2021104983A4 (en) 2020-09-10 2021-09-30 Techtronic Cordless Gp Blade replacement mechanism of electric instrument
JP7495851B2 (ja) 2020-09-10 2024-06-05 株式会社マキタ 電動作業機

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
SE523126C2 (sv) * 2001-01-11 2004-03-30 Electrolux Ab Gasreglage för motordrivna handverktyg
US20050000097A2 (en) * 2001-12-03 2005-01-06 Thomas Bednar Handle arrangement for a power tool
CN201702416U (zh) * 2009-11-20 2011-01-12 舒颖旷 一种冲击钻的减振与机械双速机构
US9855651B2 (en) 2011-03-21 2018-01-02 Techtronic Power Tools Technology Limited Hand held power tool with locking rotatable handle
CN103008722A (zh) * 2011-09-22 2013-04-03 启东市天裕机电科技有限公司 一种手电钻
WO2013122267A1 (fr) * 2012-02-15 2013-08-22 Hitachi Koki Co., Ltd. Machine de travail électrique

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
CN104842326A (zh) 2015-08-19
US20150231779A1 (en) 2015-08-20
US9815188B2 (en) 2017-11-14
EP2910339A1 (fr) 2015-08-26
DE102014002290A1 (de) 2015-08-20
CN104842326B (zh) 2018-12-14

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