EP1758444A1 - Dispositif comprenant un systeme de poignee monte sur une barre pivotante - Google Patents

Dispositif comprenant un systeme de poignee monte sur une barre pivotante

Info

Publication number
EP1758444A1
EP1758444A1 EP05740747A EP05740747A EP1758444A1 EP 1758444 A1 EP1758444 A1 EP 1758444A1 EP 05740747 A EP05740747 A EP 05740747A EP 05740747 A EP05740747 A EP 05740747A EP 1758444 A1 EP1758444 A1 EP 1758444A1
Authority
EP
European Patent Office
Prior art keywords
linkage
end position
housing
pivot axis
handle arrangement
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Withdrawn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
EP05740747A
Other languages
German (de)
English (en)
Inventor
Peter Rudolf
Bernhard Besserer
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.)
Gardena Manufacturing GmbH
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 EP1758444A1 publication Critical patent/EP1758444A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/824—Handle arrangements

Definitions

  • the invention relates to a device with a handle arrangement on a linkage pivotable relative to a device housing, in particular a mobile device, such as a lawn mower.
  • the present invention has for its object to provide an advantageous embodiment of such a device.
  • the device for damping the end position of the linkage can damage the housing, the linkage or the handle arrangement can be reliably avoided when pivoting the boom into the first end position.
  • the pivoting itself can advantageously be carried out smoothly, ie in particular without greater friction in the swivel joint.
  • the invention is based on the knowledge that it can happen with easily pivotable linkage, that the linkage or the handle arrangement can slip away from the grip of the user when pivoted into the rest position and under the influence of one's own weight, in particular with complex and heavier handle arrangements with various Controls accelerated falling down.
  • the end position damping device according to the invention avoids sudden braking of the linkage with the handle arrangement when the end position is reached and instead the fall of the linkage is gently braked.
  • the end position damping device advantageously contains an elastically deformable damping element, preferably a damping element made of an elastically compressible, in particular foamed, plastic elastomer.
  • the linkage When pivoting into the first end position, the linkage is advantageously movable beyond a limited amount by an elastic damping element of the end position damping device, which is small against the entire swivel angle and in particular less than 45 °.
  • the elastic damping element is advantageously elastic when the linkage is in the first end position biased.
  • the first end position is advantageously defined by a first mechanical stop for the pivoting movement between the linkage and the housing.
  • the linkage is pivoted in the direction of the first end position about the pivot axis in the pivot joint up to a first stop defining the first end position, and in continuation of the pivoting movement counter to the restoring force of an elastic damping element about a distance from and about the pivot axis parallel horizontal tilt axis with simultaneous displacement of the pivot axis relative to the linkage and / or housing.
  • the elastic damping element preferably counteracts such a relative displacement of the pivot axis.
  • the pivot axis is advantageously guided in a linkage in the linkage and / or in the housing.
  • the damping element can advantageously be arranged in such a link guide.
  • the linkage advantageously contains a joint head and at least one spar attached to it, in particular only a single spar, which then preferably lies essentially in the central longitudinal plane of the device.
  • the linkage In the first end position, the linkage can advantageously be detachably locked against pivoting back in the direction of an operating position by means of locking devices.
  • the linkage can then advantageously serve as a handle for the device in the locked first end position.
  • at least one locking element is advantageously provided, which preferably engages automatically in a counter structure when the end position is reached during the pivoting movement of the linkage.
  • the locking element can advantageously under the action of a Insert the preloaded spring element into the counter structure.
  • the locking element can advantageously also form the first stop for the pivoting movement of the linkage.
  • the locking element is preferably on the side of the housing and the counter structure on the side of the linkage. At least one is advantageous
  • Counter structure for releasably locking the linkage in at least one operating position is preferably removed from the first end position by a pivoting angle range of more than 90 ° and / or an intermediate position with the center of gravity of the linkage and handle arrangement lying vertically above the pivoting axis.
  • Fig. 3 shows a position of the linkage after damped further movement beyond the end position of FIG. 2.
  • Fig. 1 shows a section of a device, for example a hand-held mobile lawn mower with an indicated near-ground housing, which is generally designated GE.
  • a handle arrangement HA is arranged on the end of a link arm GH which is remote from the housing.
  • the boom spar GH is attached to a joint head GK and together with it pivotable about a horizontal swivel axis SA.
  • the pivot axis SA is considered to be stationary with respect to the housing GE.
  • a fixed joint part GG is assumed, which also carries the swivel axis SA in a defined position.
  • the joint head GK with the spar GH can be pivoted about the pivot axis SA with respect to this fixed joint part GG and can be guided by further means, not shown, in particular also perpendicular to the plane of the drawing.
  • an elongated locking pin running perpendicular to the plane of the drawing, which is pressed in the direction of the joint head by a spring RF held in a spring housing and, in the operating position outlined in FIG. 1, engages in a counter structure GSB of the joint head and the joint head , in the example shown with a small swivel angle play, locked in the operating position with the uprights GH.
  • the locking pin RS can be pressed away from the user against the prestressed spring RF, whereby the joint head is released for pivoting about the pivot axis SA.
  • the articulated head GK or components for fastening the spar GH to it on the one hand and the fixed joint part GG on the other hand are designed so that from the outlined operating position only a pivoting of the spar upwards, i. H. counterclockwise in the drawing is possible.
  • a damping element DE made of foamed elastomer is used in the joint head, the function of which is described in more detail below.
  • the position of the handle arrangement is assumed to be at the rear with respect to the typical direction of movement of the device.
  • the pivoting of the spar GH with the joint head GK from the operating position of the spar or the handle arrangement outlined in FIG. 1 leads in the direction of the arrow via an intermediate position (not shown) with the joint spar upright and the center of gravity of the joint spar GH and the handle arrangement HG above the pivot axis further in the direction of the first end position of the joint spar sketched in FIG. 2.
  • the weight of the articulated spar and handle arrangement continues to rotate in the direction of the end position. In this case, when the hinge bar or handle arrangement slips out of the grip of the user, the hinge bar with the handle arrangement can fall downward in an accelerated manner.
  • the locking pin slides on a lateral surface of the joint head and is pressed onto the lateral surface by the spring RF.
  • the spring RF presses the locking pin into a first counter structure GSE in the joint head GK and in this way blocks the further rotation of the joint head about the pivot axis SA beyond the end position outlined.
  • the pivot axis SA is not immovable with respect to the joint head GK in the position shown in FIGS. 1 and 2, but that the joint head has a guide link AK for the pivot axis SA, which can be seen clearly in FIG. 3.
  • the guide Kuisse AK describes a circular arc section around the first counter structure GSE.
  • the damping element DE is preferably inserted into the guide link AK of the joint head, but can also support the pivot axis SA at another point.
  • the compressed damping element counteracts the further pivoting of the joint head and the articulated spar around the locking pin RS, the restoring force of the damping element DE increasing with increasing displacement of the pivot axis SA within the link AK.
  • the movement of the articulated spar GH is not abruptly interrupted when the first end position sketched in FIG. 2 is reached, which would result in large loads on the joint head and the fixed joint part, but the movement swings damped over the end position sketched in FIG. 2 to a maximum of one 3 from the second end position.
  • the restoring force of the compressed damping element DE in FIG. 3 then moves the boom spar GH back into the first end position according to FIG. 2.
  • a projection VS of the fixed joint part lies in the operating position according to FIG.
  • the articulated bar lies close to the housing GE.
  • the locking pin RS in the counter structure GSE secures the boom spar GH against pivoting back in the direction of the operating position outlined in FIG. 1.
  • the boom handlebar GH can also serve as a handle for the device in this position.
  • the housing of the device advantageously shows a recess below the handle arrangement in its first end position, preferably by providing a space between the front wheels. The handle assembly can then when swiveling beyond the first end position, dip into such a housing recess.
  • the linkage can advantageously be variable in length, preferably in the form of a telescopic spar, and in particular in the first end position have a shorter length than in the operating position and in the latter do not protrude or only slightly protrude beyond the front boundary of the device housing.
  • pivot axis SA which is stationary with respect to the fixed joint part GG and the guide link AK in the joint head
  • the sketched embodiment represents only one preferred possibility of advantageous end position damping of a linkage for a generic device.
  • the damping can also be done in other ways.
  • the end stop for the first end position of the linkage can also be displaceable against a restoring force of an elastic damping element.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Rehabilitation Tools (AREA)

Abstract

La présente invention concerne une liaison pivotante entre un système de barres et une partie articulée fixe côté boîtier, destinée à un dispositif qui peut se déplacer, comprenant un système de poignée espacé d'un boîtier par un système de barres.
EP05740747A 2004-06-22 2005-05-11 Dispositif comprenant un systeme de poignee monte sur une barre pivotante Withdrawn EP1758444A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410030059 DE102004030059A1 (de) 2004-06-22 2004-06-22 Gerät mit einer Handgriffanordnung an einem schwenkbaren Gestänge
PCT/EP2005/005062 WO2005122745A1 (fr) 2004-06-22 2005-05-11 Dispositif comprenant un systeme de poignee monte sur une barre pivotante

Publications (1)

Publication Number Publication Date
EP1758444A1 true EP1758444A1 (fr) 2007-03-07

Family

ID=34967787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05740747A Withdrawn EP1758444A1 (fr) 2004-06-22 2005-05-11 Dispositif comprenant un systeme de poignee monte sur une barre pivotante

Country Status (3)

Country Link
EP (1) EP1758444A1 (fr)
DE (2) DE102004030059A1 (fr)
WO (1) WO2005122745A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007168A1 (de) * 2007-02-09 2008-08-21 J. Rettenmaier & Söhne Gmbh + Co. Kg Verfahren zum Herstellen von hydrophobem Gut in Gestalt von Formkörpern oder Granulaten oder Kompaktaten
ITUB20153551A1 (it) * 2015-09-11 2017-03-11 Stiga S P A In Breve Anche St S P A Apparato di regolazione in altezza e ribaltamento di un manico di un tosaerba.
US10123478B2 (en) 2016-06-28 2018-11-13 The Toro Company Walk power mower with biased handle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545585A (en) * 1946-08-14 1951-03-20 Hubert H Montague Mowing machine handle
US3116937A (en) * 1962-09-24 1964-01-07 Jacobsen Mfg Co Handle for rotary lawn mowers
AU2004226873B2 (en) * 2003-03-31 2010-01-07 Victa Lawncare Pty. Ltd. Assembly to reduce the transmission of vibration to the operator of a lawn mower

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005122745A1 *

Also Published As

Publication number Publication date
WO2005122745A1 (fr) 2005-12-29
DE202005021543U1 (de) 2008-09-04
DE102004030059A1 (de) 2006-02-16

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