EP1702724B1 - Outil comportant une poignée montée tournant - Google Patents

Outil comportant une poignée montée tournant Download PDF

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Publication number
EP1702724B1
EP1702724B1 EP06004126A EP06004126A EP1702724B1 EP 1702724 B1 EP1702724 B1 EP 1702724B1 EP 06004126 A EP06004126 A EP 06004126A EP 06004126 A EP06004126 A EP 06004126A EP 1702724 B1 EP1702724 B1 EP 1702724B1
Authority
EP
European Patent Office
Prior art keywords
handle
tool according
bearing
housing
aforementioned
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.)
Not-in-force
Application number
EP06004126A
Other languages
German (de)
English (en)
Other versions
EP1702724A2 (fr
EP1702724A3 (fr
Inventor
Carsten Ziegs
Willi Strauss
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.)
Solo Kleinmotoren GmbH
Makita Engineering Germany GmbH
Original Assignee
Dolmar GmbH
Solo Kleinmotoren 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
Application filed by Dolmar GmbH, Solo Kleinmotoren GmbH filed Critical Dolmar GmbH
Publication of EP1702724A2 publication Critical patent/EP1702724A2/fr
Publication of EP1702724A3 publication Critical patent/EP1702724A3/fr
Application granted granted Critical
Publication of EP1702724B1 publication Critical patent/EP1702724B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles
    • 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
    • B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
    • 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 hand-held implement with a housing and at least one arranged thereon and rotatably mounted about an axis handle, the handle shells and a bearing part comprises, which is fixed to a thrust bearing of the housing.
  • the sleeve engages with a frontally formed radial flange, the front ends of the bearing journal and bearing half shell and engages with or formed at or near its flange remote end hooks in radial recesses in the journal.
  • the bearing of the handle is formed in two parts, that is, the first and the second handle shell each have a bearing part, which is disadvantageous in terms of stability of the handle, in particular during rotation of the handle about the axis of rotation.
  • additional components for an axial securing necessary, whereby the assembly and disassembly effort is further increased.
  • the invention provides that the first handle shell are formed bearing free with the bearing part of a one-piece component and the second, attached to the first handle shell handle shell.
  • the main advantage of this invention is that only a closed bearing part is provided on a handle shell, which is fixed in the assembled state on the abutment of the housing, As a result, the storage of the handle on the housing is stably formed so that forces occurring during the operation If the handle can be opened due to repair measures, only the second, bearing-free handle shell can be solved by the first handle shell, the first handle shell remains in the attached state at the abutment of the housing. The user thus receives complete access to the gripping mechanism arranged in the first handle shell, without this breaking up into its individual parts. Without considerable installation effort, the user can for example intervene in the mechanics repairing or perform an exchange. Conveniently, the first and the second handle shell are positively and / or non-positively connected. A screw is conceivable, for example.
  • the bearing part is designed as a bearing sleeve and the counter bearing as a journal.
  • the bearing sleeve can be designed as a closed, annular enclosure in which - in the mounted state of the handle - the bearing pin is substantially completely absorbed.
  • the bearing pin which has a substantially cylindrical shape, formed in one piece, so that the working device according to the invention compared to the known in the prior art devices has few components, which in addition to the saving of many items and the assembly time is significantly reduced.
  • the journal and the bearing sleeve can also be well matched in terms of tolerances.
  • a securing device which prevents detachment of the handle from the housing in the axial direction along the axis of rotation.
  • the securing device can have a groove running around the bearing journal, which corresponds with at least one recess formed in the bearing sleeve.
  • the second handle shell comprises at least one securing element which extends through the recess and engages in the groove.
  • the implement on two recesses and two securing elements, which may for example be designed in the form of a pin.
  • the securing elements are preferably on formed the second handle shell, which provide in conjunction with the groove and the recesses for an axial securing member.
  • an annular sealing element is arranged on the journal, which may be, for example, an O-ring.
  • the O-ring is arranged around the journal and forms a reliable seal of the bearing against contamination and debris.
  • a voltage in the axial direction is additionally constructed by the securing elements of the second handle shell, which interacts with the sealing element.
  • the sealing element is slightly pressed by chamfering on the pins, which leads to a secure seal.
  • the anvil is preferably formed in one piece, so that the sealing element substantially on a circular, flat, seamless and shock-free surface veriäuft and thus subject to wear.
  • the handle can be continuously rotated along the axis of rotation. It is also conceivable that the handle and the housing have unlockable locking means, whereby the handle can be locked in defined positions about the axis of rotation. Conveniently, the maximum rotation angle of the handle is 180 °, wherein the hand-grip in at least 3 positions, preferably in 5.7 or 9 positions, can be locked. In such an embodiment, it may be useful to provide the position for the normal handling of the implement in the middle of the entire rotation angle (pivot angle) and to allow from the center position out a swivel angle of 90 ° to each side.
  • an element for limiting the angle of rotation of the maximum angle of rotation can be provided between the housing and the handle.
  • Such an embodiment of the invention prevents that the handle can be repeatedly rotated relative to the housing, which could lead to damage, for example, to electrical connection lines between the handle and the housing.
  • the first handle shell in the region of the bearing part has at least one opening, which cooperates with a plurality of apertures on the abutment of the housing.
  • the openings both on the bearing part and on the counter bearing can be designed here as circular openings and / or depressions.
  • a locking bolt can extend through the opening of the bearing part and engage in one of the openings of the housing.
  • the unlocking can be done, for example, by actuating a arranged on the housing or the handle probe element coupled to the locking means or is in operative connection.
  • the openings of the housing and / or the first handle shell can be arranged in an orbit around the axis of rotation in one embodiment of the invention.
  • the locking pin is received in a one-piece bore of the handle.
  • means may be provided to prevent inadvertent unlocking during operation of the implement.
  • This constructive design makes a significant contribution to occupational safety, since it can be reliably prevented that the handle unlocked while the engine is running or vice versa, the engine can be turned on when the handle is unlocked.
  • FIG. 1 a drive unit 10 of the hedge trimmer 100 to recognize, which is an internal combustion engine 10a in the present embodiment.
  • the internal combustion engine 10a is a single-cylinder two-stroke engine.
  • an electric motor can be used as the drive unit 10 for the hedge trimmer 100.
  • the internal combustion engine 10 a which is fixed to the housing 12, drives a tool 11 via a gear 10 b.
  • the housing 12 has an up / down open receiving area in which the engine 10a is arranged.
  • a rear handle 14 is arranged, as the FIGS. 2 to 6 show, the handle 14 is composed of a first 15 and a second handle shell 16 together.
  • the handle 14 is provided with an opening through which a probe element 24 protrudes, which may be formed depending on the nature of the drive motor as a throttle or as an actuating lever for an electrical speed controller / -steller.
  • the probe element 24 may be connected, for example, in an alternative, not shown embodiment via a running within the handle 14 Bowden cable with the tachometer.
  • a throttle lever lock 25 is arranged on the handle 14.
  • a front handle 26 is arranged on the housing 12, which has a substantially U-shaped extension.
  • the bow-shaped handle 26, which is provided on the surface with grooves for improved grip, as well as the rear handle 14 consist in the illustrated embodiment of a plastic.
  • the front handle 26 may also consist of a profiled aluminum body in an alternative of the invention, or also be formed in several parts / multi-piece.
  • the handle 14 has a bearing part, which has the shape of a bearing sleeve 17.
  • the handle 14 has a hollow body, in which various handle mechanisms (locking lever mechanism, throttle control mechanism, etc.) are added.
  • the bearing sleeve 17 protrudes into the hollow body of the handle 14.
  • the housing 12 is formed on the opposite side of the tool 11 with a bearing pin 18 as an abutment on which the bearing sleeve 17 can be attached.
  • the anvil may be integrally connected to the housing 12.
  • the first handle shell 15 is formed with the bearing pegs 17 of a one-piece / one-piece component, wherein the bearing sleeve 17 is designed as a closed, annular enclosure.
  • the Counter bearing is formed as a bearing pin 18 which is received by the bearing sleeve 17.
  • the second handle shell 16 is bearingless (see FIGS. 5 and 6 ).
  • the handle 14 can be given away about an axis of rotation 13 in defined positions, wherein the rotations about the rotation axis 13 by Drehwinkelbegrenzungsanelle ( Fig. 5 shows a rotation angle limiting stopper 28) is limited to a maximum value of the rotation angle ⁇ .
  • a circumferential groove 19 is arranged on the bearing journal 18.
  • the first handle shell 15 has recesses 20 corresponding to the groove 19, through which pins 21 formed on the second handle shell 16 protrude and engage in the groove 19.
  • the bearing sleeve 17 has two recesses 20 (openings).
  • the second handle shell 16 comprises on its inside two pins 21 which extend at a certain distance from one another. The distance between the pins 21 and the diameter of the groove 19 are coordinated with each other so that on the one hand a secure, axial grip of the handle 14 is ensured on the bearing pin 18 and on the other hand, a smooth rotation of the handle 14 can be performed by the user.
  • the pins 21, in particular on the chamfers 21 a voltage in the axial direction is additionally constructed at the bearing point, which together with an O-ring, not shown, which is arranged around the bearing pin 18 and a groove 27, respectively.
  • FIGS. 4 to 6 can be seen on the handle 14 and the housing 12 arranged latching means 22,23, whereby the handle 14 about the rotational axis 13 in defined positions can be locked.
  • the first handle shell 15 has in the region of its bearing sleeve 17 an opening 22 in the form of a circular opening.
  • This opening 22 acts together with a plurality of openings 23 on the bearing pin 18 of the handle 14.
  • the openings 23 of the bearing pin 18 are arranged in a circle in a certain radius to the rotation axis 13.
  • an unillustrated locking bolt passes through the opening 22 of the bearing sleeve 17 and engages in one of the openings 23 of the bearing, which are configured as circular depressions, arresting a.
  • the locking bolt is preferably mounted in a one-piece, running bore.
  • One of the significant advantages of the invention is that when disassembled, the first handle shell 15 remains mounted on the housing 12, whereby the ease of assembly can be improved.
  • the user has easy access to the handle mechanism, which is reliably received by the inner wall of the first handle shell 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Harvester Elements (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Toys (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Domestic Plumbing Installations (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Portable Power Tools In General (AREA)

Claims (24)

  1. Appareil opérationnel guidé manuellement (100), comportant un boîtier (12) et au moins une poignée (14) disposée dessus, s'appuyant en rotation autour d'un axe (13) et comprenant des coques de poignée (15, 16) et une pièce de palier qui est fixée à un contre-palier du boîtier (12), caractérisé en ce qu'une première coque de poignée (15) est réalisée en un seul bloc avec la pièce de palier et qu'une seconde coque de palier (16) fixée à la première coque de palier (15) est réalisée sans palier.
  2. Appareil opérationnel selon la revendication 1, caractérisé en ce que la pièce de palier est réalisée sous forme d'un manchon de palier (17) et le contre-palier sous forme d'un pivot de palier (18).
  3. Appareil opérationnel selon la revendication 2, caractérisé en ce que le manchon de palier (17) est réalisé sous forme d'un entourage fermé de forme annulaire.
  4. Appareil opérationnel selon une des revendications précédentes 2 ou 3, caractérisé en ce que le pivot de palier (18) est réalisé en un bloc.
  5. Appareil opérationnel selon une des revendications précédentes, caractérisé par un dispositif de blocage (19, 20, 21) qui empêche un détachement de la poignée (14) du boîtier (12) dans le sens axial le long de l'axe de rotation (13).
  6. Appareil opérationnel selon la revendication 5, caractérisé en ce que le dispositif de blocage (19, 20, 21) présente une rainure (19) périphérique au niveau du pivot de palier (18) qui coïncide avec au moins une cavité (20) pratiquée dans le manchon de palier (17).
  7. Appareil opérationnel selon la revendication 6, caractérisé en ce que la seconde coque de palier (16) présente au moins un élément de blocage qui s'étend dans la cavité (20) et s'engrène dans la rainure (19).
  8. Appareil opérationnel selon la revendication 7, caractérisé en ce qu'un élément de blocage est réalisé sous forme d'une tige (21).
  9. Appareil opérationnel selon une des revendications précédentes, caractérisé en ce que la poignée (14) et le boîtier (12) présentent des moyens d'enclenchement déverrouillables, ce qui permet d'arrêter la poignée (14) à des positions définies autour de l'axe de rotation (13).
  10. Appareil opérationnel selon la revendication 9, caractérisé en ce que l'angle de rotation maximal α de la poignée (14) autour de l'axe de rotation (13) est limité.
  11. Appareil opérationnel selon la revendication 10, caractérisé en ce que l'angle de rotation α de la poignée (14) est de 180°, la poignée (14) pouvant être arrêtée à au moins 3 positions.
  12. Appareil opérationnel selon une des revendications précédentes, caractérisé en ce qu'un limiteur d'angle de rotation (28) est disposé entre le boîtier (12) et la poignée (14).
  13. Appareil opérationnel selon une des revendications 9 à 12, caractérisé en ce que la première coque de poignée (15) présente au niveau de la pièce de palier au moins une percée (22) qui coopère avec plusieurs percées (23) au niveau du contre-palier (12), sachant que, en position bloquée de la poignée (14), une cheville d'enclenchement s'étend dans la percée (22) de la pièce de palier et s'engrène dans une des percées (23) du boîtier (12).
  14. Appareil opérationnel selon la revendication 13, caractérisé en ce que la cheville d'enclenchement est reçue dans un alésage réalisé en une pièce de la poignée (14).
  15. Appareil opérationnel selon la revendication 13, caractérisé en ce que les percées (22, 23) du boîtier (12) et/ou de la première coque de palier (15) sont disposées en cercle autour de l'axe de rotation (13).
  16. Appareil opérationnel selon une des revendications précédentes 2 ou 4, caractérisé en ce qu'un élément d'étanchéité de forme annulaire est disposé dans une rainure (27) au niveau du pivot de palier (18).
  17. Appareil opérationnel selon la revendication 16, caractérisé en ce que l'élément d'étanchéité de forme annulaire est un joint torique.
  18. Appareil opérationnel selon une des revendications précédentes, caractérisé en ce que la première coque de palier (15) est reliée à la deuxième coque de palier (16) en correspondance géométrique et/ou mécanique mutuelle.
  19. Appareil opérationnel selon une des revendications précédentes, caractérisé en ce que les première et deuxième coques de palier (15, 16) sont composées d'une matière plastique.
  20. Appareil opérationnel selon la revendication 17, caractérisé en ce que la poignée (14) est un corps creux en matière plastique.
  21. Appareil opérationnel selon une des revendications précédentes, caractérisé en ce que les première et deuxième coques de palier (15,16) sont des pièces moulées par injection.
  22. Appareil opérationnel selon la revendication 19, caractérisé en ce que la matière plastique présente une certaine proportion de matière de charge stabilisante.
  23. Appareil opérationnel selon une des revendications précédentes, caractérisé en ce qu'une unité mécanique est disposée à l'intérieur de la poignée (14).
  24. Appareil opérationnel selon une des revendications précédentes 9 à 11, caractérisé par des moyens qui empêchent un détachement inopiné des moyens d'enclenchement (22, 23) lorsqu'un moteur à combustion (10a) est en marche.
EP06004126A 2005-03-17 2006-03-01 Outil comportant une poignée montée tournant Not-in-force EP1702724B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005004316U DE202005004316U1 (de) 2005-03-17 2005-03-17 Arbeitsgerät

Publications (3)

Publication Number Publication Date
EP1702724A2 EP1702724A2 (fr) 2006-09-20
EP1702724A3 EP1702724A3 (fr) 2009-07-08
EP1702724B1 true EP1702724B1 (fr) 2010-07-28

Family

ID=36498800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06004126A Not-in-force EP1702724B1 (fr) 2005-03-17 2006-03-01 Outil comportant une poignée montée tournant

Country Status (5)

Country Link
US (1) US7549196B2 (fr)
EP (1) EP1702724B1 (fr)
CN (1) CN1833827B (fr)
AT (1) ATE475514T1 (fr)
DE (2) DE202005004316U1 (fr)

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CA2731602C (fr) 2008-07-22 2013-09-10 Gerhard Weusthof Scie ebouteuse et a onglets
WO2010028828A1 (fr) * 2008-09-12 2010-03-18 Gerhard Weusthof Scie pendulaire à onglet comprenant un dispositif de fixation d'angle
DE102008056563B4 (de) 2008-11-10 2014-10-02 Gerhard Weusthof Elektrowerkzeug, insbesondere Säge
EP2196084A3 (fr) * 2008-12-11 2010-11-10 Hitachi Koki CO., LTD. Outil électrique à moteur portable
DE102008064007A1 (de) * 2008-12-19 2010-06-24 Andreas Stihl Ag & Co. Kg Heckenschere
DE202009006860U1 (de) * 2009-05-12 2010-09-30 Makita Corp., Anjo Bodenplatte
JP2013533123A (ja) * 2010-06-04 2013-08-22 フスクバルナ アクティエボラーグ 手持ち式動力工具用のハンドルシステム
JP5767791B2 (ja) 2010-08-24 2015-08-19 株式会社マキタ 手持ち式動力作業機
US9908211B2 (en) * 2013-09-06 2018-03-06 The Boeing Company Tool support
CN104209843A (zh) * 2014-09-16 2014-12-17 同济大学 一种手持式电动磨光机
US9560811B2 (en) * 2015-02-09 2017-02-07 Jenn Feng New Energy Co., Ltd. Power driven hedge trimmer with movable front handle
JP6789258B2 (ja) * 2018-03-01 2020-11-25 株式会社丸山製作所 手持式作業機
EP4008491A1 (fr) * 2020-12-04 2022-06-08 Hilti Aktiengesellschaft Machine-outil doté d'une première poignée, d'une seconde poignée et d'un corps principal

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Also Published As

Publication number Publication date
US20060230623A1 (en) 2006-10-19
EP1702724A2 (fr) 2006-09-20
CN1833827A (zh) 2006-09-20
DE202005004316U1 (de) 2006-07-27
EP1702724A3 (fr) 2009-07-08
CN1833827B (zh) 2012-10-03
DE502006007512D1 (de) 2010-09-09
ATE475514T1 (de) 2010-08-15
US7549196B2 (en) 2009-06-23

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