EP1945019A1 - Appareil de jardinage - Google Patents

Appareil de jardinage

Info

Publication number
EP1945019A1
EP1945019A1 EP06806529A EP06806529A EP1945019A1 EP 1945019 A1 EP1945019 A1 EP 1945019A1 EP 06806529 A EP06806529 A EP 06806529A EP 06806529 A EP06806529 A EP 06806529A EP 1945019 A1 EP1945019 A1 EP 1945019A1
Authority
EP
European Patent Office
Prior art keywords
locking
garden implement
pivot joint
implement according
pivot
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.)
Withdrawn
Application number
EP06806529A
Other languages
German (de)
English (en)
Inventor
Vincent Reichart
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.)
Husqvarna AB
Original Assignee
Gardena Manufacturing 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 Gardena Manufacturing GmbH filed Critical Gardena Manufacturing GmbH
Publication of EP1945019A1 publication Critical patent/EP1945019A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
    • A01G3/047—Apparatus for trimming hedges, e.g. hedge shears portable
    • A01G3/053—Apparatus for trimming hedges, e.g. hedge shears portable motor-driven

Definitions

  • the invention relates to a garden implement having at least two implement sections, which are associated with at least one drive motor and a working means coupled thereto, in particular a cutting device, and which are connected to one another in a pivotable manner for use of the garden implement in different functional positions by means of a pivot joint.
  • a telescoping hedge trimmer with a handle assembly, a handle attached thereto, and a working head pivotally coupled by a pivoting joint to a handle is known.
  • the working head comprises an electrically operable drive motor and a working medium coupled thereto which is designed as a cutting blade of a hedge trimmer.
  • the hedge trimmer By pivoting the working head relative to the handle, the hedge trimmer can be placed in different functional positions that ensure a variety of replaceability of the gardening tool.
  • One of the functional positions is a transport position in which the gardening tool can be compactly compacted to ensure easy transport and space-saving storage.
  • a switching device is provided which is activated during pivoting of the working head from the working area to the transport position and which interrupts the power supply to the drive motor.
  • the object of the invention is to provide a garden implement, in which a simple and safe transfer of the device sections is ensured in the different functional positions.
  • This object is achieved by a garden implement of the type mentioned, in which the pivot joint switching means are assigned, which are designed for a shutdown and / or blocking of the drive motor and / or the working means at least during pivotal movements of the pivot joint between operating positions of the garden implement.
  • the pivot joint switching means are assigned, which are designed for a shutdown and / or blocking of the drive motor and / or the working means at least during pivotal movements of the pivot joint between operating positions of the garden implement.
  • the switching means are deactivated, so that a shutdown and / or blocking of the drive motor and / or the working means is canceled.
  • At least one transport position may additionally be provided in which the device sections occupy a position relative to one another in which no operation of the garden implement is provided.
  • the operating positions and the at least one transport position are functional positions that the gardening device can assume by pivoting the at least two device sections.
  • the garden device according to the invention is designed so that during a pivoting operation between two operating positions, an activation of the switching means is provided.
  • the activation of the switching means leads to a blocking or shutdown of the drive motor and / or the working fluid.
  • the activation of the switching means can be effected in particular by a mechanical, electrical, electronic, hydraulic or pneumatic activation, for example when the pivoting movement is initiated.
  • the switching means in turn can cause a mechanical, electrical or electronic shutdown or blocking of the drive motor and / or the working fluid. This ensures that a user can not be injured by an unintentional start-up of the garden implement when adjusting the swivel joint between the operating positions. If at least one transport position is provided for the device sections, the switching means also provide, in the case of a pivoting movement between one of the operating positions and the transport position a shutdown and / or blocking of the drive motor and / or the working means safely. This can additionally ensure that a user at the beginning or at the end of a use of the gardening tool, if a swiveling out of or into the transport position, is also not endangered by an unwanted start-up of the gardening tool.
  • the pivot joint by means of a locking device which is movable between a Arretierstellu ⁇ g and a release position, can be fixed.
  • the locking device thus ensures safe operation of the garden implement, since in the locked position an unintentional pivoting of the pivot joint and thus an optionally dangerous change in position of the device sections to each other is prevented.
  • a pivoting of the device sections can be carried out to adapt the gardening equipment to different conditions of use.
  • the locking device may in particular be configured such that a movement from the locking position to the release position is possible only by active action of the user, so that an unwanted pivoting of the device sections can be excluded.
  • the locking device is provided for blocking the pivot joint in predetermined pivot positions.
  • a particularly stable and easy-to-use design of the locking device can be realized.
  • an angular adjustment of the device sections can be realized in a predetermined angular grid, so that an advantageous reproducibility of the angle adjustment, for example, for recurrent use situations of the garden implement, is conceivable.
  • the switching means of the locking device are assigned such that upon actuation of the locking device for performing a pivoting operation activation of the switching means and thus a shutdown and / or blocking of the drive motor and / or the working means is ensured. Since an actuation of the locking device is first necessary for a pivoting of the pivot joint, a particularly high level of security with respect to an unwanted startup of the garden implement can be ensured by a coupling of the switching means with the locking device. For this purpose, it may be provided that the activation of the switching means takes place in dependence on a predefinable deflection of the locking device along an actuation path from the locking position into the release position.
  • the locking device can be brought into at least one intermediate position between the locking position and the release position, in which a locking of the pivot joint and an activation of the switching means is ensured.
  • the intermediate position allows a mechanical locking of the swivel joint, without the gardening device can be put into operation.
  • the intermediate position of the locking device may be provided in particular for the at least one transport position of the swivel joint, in which the work equipment is stored in a compact stowed position and the device sections are to be securely locked together, however, in which an undesirable start of the garden implement lead to a significant risk to the user could.
  • the locking device has an actuating button which is movably attached to a first device section and which for a positive engagement in a toothing attached to the second device section is provided to ensure the locking of Schwe ⁇ kgelenks.
  • the actuating button which may be biased in particular with a compression spring in the locking position, is slidably and / or rotatably mounted on the first device portion and engages in the locking position provided in a provided on the second device portion toothing.
  • the toothing is designed differently in partial areas of a pivoting range of the pivot joint, with a first partial area corresponding to an operating pivoting area and a second partial area to a transporting position.
  • the toothing is designed in the operating pivoting range such that the pivot joint is locked in a fixed position and the switching means are deactivated, so that a commissioning of the gardening tool is possible.
  • a fixed locking of the pivot joint is also ensured.
  • the toothing of the locking device in the transport position is set up so that the locking device can only get into the intermediate position, so that the switching means remain activated and a commissioning of gardening equipment is prevented.
  • This can be achieved, in particular, by means of a toothing changed with respect to the teeth in the operating pivoting range, for example, a tooth depth can be selected to be smaller, so that the locking device can only be moved from the release position into the intermediate position.
  • the partial regions provided with a toothing are spaced apart from one another by untoothed intermediate regions and the at least one untoothed intermediate region is designed such that a locking of the pivoting joint is prevented and activation of the switching element is ensured.
  • No toothing is provided in the one or more intermediate areas between the operating pivoting areas and the transport position (s).
  • this does not mean that the locking device passes into the locked position for lack of toothing and deactivation of the switching means and thus a release of the drive motor or the working fluid.
  • an at least substantially continuous rail which runs in sections on the corresponding device section, is provided on the pivot joint.
  • This rail prevents deflection of the locking device, in particular the push button, from the release position into the intermediate position or the locking position, so that neither a locking of the pivot joint nor a commissioning of the garden implement is possible.
  • angular positions can be determined constructively within an angular range which can be absorbed by the swivel joint, which are necessary for transferring the device sections between operating pivot areas and / or transport positions, but in which neither provision of the swivel joint nor operation of the garden implement is provided.
  • At least one operating pivoting range the pivot angle of at least 60 degrees, preferably covered by at least 90 degrees, and at least one untoothed intermediate region, which covers a pivot angle of at least 40 degrees, preferably 70 degrees, and at least one transport position are provided.
  • the transport position is spaced over the untoothed intermediate region of the operating position such that a compact folding of the gardening device is ensured in the transport position.
  • a commissioning of the garden implement is only possible in the operating pivot range due to the correspondingly shaped toothing, since the pushbutton can only reach the locking position in this subarea.
  • the toothing can be realized in particular with an angular division to 5 degrees, so that in a Radioschwenk Scheme of 90 degrees a total of 19 different angular positions can be taken.
  • the actuating button is movable substantially parallel to a pivot axis of the pivot joint and the toothing is mounted on a substantially cylindrically shaped outer surface of a device section and is aligned substantially parallel to the pivot axis.
  • the attachment of the teeth on an outer surface of a device section means that the power transmission via the teeth and the push button takes place at a maximum distance from the pivot axis of the pivot joint, so that the forces to be transmitted are at a low level.
  • the switching means are designed as interruption switch for a power supply, in particular for a power supply to the drive motor. This can be ensured that in a deflection of the locking device from the Arret istssteliung unwanted commissioning of the gardening device is prevented.
  • the breaker switch is switched to a supply circuit of the drive motor and can directly interrupt the power supply in a designed as an electric motor drive motor.
  • the circuit breaker can be purchased as a separate component and tested and is mounted in the appropriate device section and integrated with pre-assembled cable connections in the circuit.
  • FIG. 1 is a perspective view of a garden implement in an operating position
  • 2 shows a further illustration of the garden implement according to FIG. 1,
  • FIG. 1 is a perspective view of a garden implement in an operating position
  • FIG. 3 is a perspective, partially sectioned view of a swivel joint region of the garden implement according to FIGS. 1 and 2 in the operating position,
  • FIG. 4 is a perspective, partially sectioned illustration of the swivel joint area according to FIG. 3 in a swivel position between two operating positions, FIG.
  • Fig. 5 is a perspective, partially sectional view of the pivot joint region according to FIGS. 3 and 4 in a transport position.
  • a garden implement 1 is designed as a telescopic hedge trimmer has two device sections connected by means of a pivot joint 6.
  • a first device section 24 comprises a telescopic rod 3, which is attached to a handle, not shown, which is provided for gripping the garden implement 1 during operation and which is equipped with a device switch and a safety device to ensure a two-handed operation of the garden implement 1.
  • the telescopic rod 3 can be adjusted in length and thus allows use of the garden tool 1 for different applications such as the lateral trimming of hedges or pruning a honeysuckle well above a not achievable by the operator without further aids such as a ladder working height.
  • a drive head 4 is attached as a second device portion 25, which is provided for receiving a drive motor, not shown, and on which a designed as a cutting blade 5 working equipment is mounted.
  • the drive head 4 is connected via the pivot joint 6 with the telescopic rod 3, wherein the pivot joint 6 mit- Tels a pivotal movement allows an angular adjustment between the telescopic rod 3 and the drive head 4.
  • the swivel joint 6 has a yoke 16, which is attached to the telescopic rod 3 and engages around an at least partially cylindrical shaped joint ring 17 of the constructed from two housing halves drive head 4.
  • a cylindrical bearing surface is provided, on which a joint bushing 19 fastened to the yoke 16 can pivotably slide.
  • the joint bushing 19 thus enables a relative movement of the yoke 16 and the associated telescopic rod 3 relative to the drive head 4 about a pivot axis 12.
  • the pivot joint 6 is assigned a locking device 8.
  • the locking device 8 is located in the operating position of the gardening tool 1 shown in FIGS. 1, 2 and 3 in a locking position in which a start-up of the gardening tool 1 is possible.
  • the locking device 8 has a movable in the direction of the pivot axis 12 actuating button 9, which is slidably received in the yoke 16 and pressed by means of a compression spring 14 in the locking position shown in Figs. 2 and 3 becomes.
  • the actuating button 9 In the locked position, the actuating button 9 is flush with a surface of the yoke 16, as shown in Fig. 2 in more detail.
  • a perpendicular to the pivot axis abragender switching cam 20 is mounted, which acts in the locked position on a designed as a microswitch 7 switching means and thereby not one illustrated branch between an external or internal power source and the drive motor closes.
  • the microswitch 7 is integrated in a circuit between the power source and the drive motor such that when the current branch is interrupted by the microswitch 7, a supply of the drive motor with electrical energy is excluded. Even with a current branch closed by the microswitch 7, at least one further switching device, for example a device switch provided on the handle, must be actuated in order to close the circuit and thus ensure a power supply of the drive motor. This should ensure a safe and accident-free handling of the garden implement.
  • the microswitch 7 is arranged opposite the switching cam 20 of the actuating button 9 such that a slight deflection of the actuating button 9 from the locking position in the direction of the pivot axis 12 leads to a spacing of the switching cam 20 relative to a switching element 21 of the microswitch.
  • the microswitch 7 associated current branch is interrupted immediately, so that an interruption of the power supply of the drive motor is ensured before the teeth of the actuating button 9 disengages and allows pivoting of the device sections 24, 25 to each other.
  • the transport toothing 23 shown in more detail in Fig. 1 is designed so that the tooth webs 22 of the actuating button 9 can engage in the transport teeth 23 to ensure locking of the pivot joint 6 in the transport position.
  • a tooth depth, ie a distance between an end face 26 of the transport toothing 23 and a tooth bottom 27 of the transport toothing 23 is selected to be smaller than in the operating position associated toothing 10. This prevents the actuating button 9 can completely return to the locking position, so that a deflection of the switching element 21 of the microswitch 7 can be excluded by the switching cam 20.
  • the transport position of the current branch interrupted by the microswitch 7 and a commissioning of the gardening tool 1 thus excluded.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)

Abstract

L'invention concerne un appareil de jardinage (1) qui présente au moins deux parties d'appareil (24, 25) auxquelles au moins un moteur d'entraînement et un moyen de travail (5) qui y est accouplé, en particulier un dispositif de coupe, sont associés, et qui sont reliées l'une à l'autre à pivotement au moyen d'une articulation de pivotement (6) pour permettre d'utiliser l'appareil de jardinage (1) en différentes positions de fonctionnement. Selon l'invention, des moyens de commutation (7) qui sont configurés pour débrancher et/ou bloquer le moteur d'entraînement et/ou le moyen de travail (5) en cas de déplacement du pivotement de l'articulation de pivotement (6) au moins entre des positions de fonctionnement de l'appareil de jardinage (1), sont associés à l'articulation de pivotement (6).
EP06806529A 2005-11-07 2006-10-25 Appareil de jardinage Withdrawn EP1945019A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510053416 DE102005053416A1 (de) 2005-11-07 2005-11-07 Gartengerät
PCT/EP2006/010275 WO2007051553A1 (fr) 2005-11-07 2006-10-25 Appareil de jardinage

Publications (1)

Publication Number Publication Date
EP1945019A1 true EP1945019A1 (fr) 2008-07-23

Family

ID=37663370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806529A Withdrawn EP1945019A1 (fr) 2005-11-07 2006-10-25 Appareil de jardinage

Country Status (3)

Country Link
EP (1) EP1945019A1 (fr)
DE (1) DE102005053416A1 (fr)
WO (1) WO2007051553A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8595055B2 (en) 2001-03-27 2013-11-26 Points.Com Apparatus and method of facilitating the exchange of points between selected entities

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058755A1 (de) 2005-12-05 2007-06-06 Gardena Manufacturing Gmbh Arbeitsgerät mit Griffeinheit
JP5785125B2 (ja) * 2012-03-23 2015-09-24 株式会社マキタ 動力工具
US9596806B2 (en) 2013-10-10 2017-03-21 Chervon (Hk) Limited Control system for controlling the operation of a gardening tool
US11284568B2 (en) 2018-05-23 2022-03-29 Milwaukee Electric Tool Corporation Hedge trimmer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640653A1 (de) * 1996-10-02 1998-04-09 Gardena Kress & Kastner Gmbh Motorbetriebene Heckenschere
GB2325387A (en) * 1997-05-23 1998-11-25 Black & Decker Inc Hedge trimmer
DE19926375A1 (de) * 1999-06-10 2000-12-14 Gardena Kress & Kastner Gmbh Motorbetriebenes Gartenwerkzeug, insbesondere Heckenschere
JP4251441B2 (ja) * 2003-03-11 2009-04-08 株式会社ニッカリ 刈取機の安全装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007051553A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8595055B2 (en) 2001-03-27 2013-11-26 Points.Com Apparatus and method of facilitating the exchange of points between selected entities

Also Published As

Publication number Publication date
DE102005053416A1 (de) 2007-05-10
WO2007051553A1 (fr) 2007-05-10

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