EP2492070A1 - Scie à chaîne, en particulier pour écrêter les arbres et les buissons - Google Patents

Scie à chaîne, en particulier pour écrêter les arbres et les buissons Download PDF

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Publication number
EP2492070A1
EP2492070A1 EP12157108A EP12157108A EP2492070A1 EP 2492070 A1 EP2492070 A1 EP 2492070A1 EP 12157108 A EP12157108 A EP 12157108A EP 12157108 A EP12157108 A EP 12157108A EP 2492070 A1 EP2492070 A1 EP 2492070A1
Authority
EP
European Patent Office
Prior art keywords
chainsaw
handle
handgrip
stem
connector
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Withdrawn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
EP12157108A
Other languages
German (de)
English (en)
Inventor
Franco Zanon
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.)
Zanon SRL
Original Assignee
Zanon SRL
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 Zanon SRL filed Critical Zanon SRL
Publication of EP2492070A1 publication Critical patent/EP2492070A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates to a chainsaw.
  • a chainsaw is particularly useful for trimming trees and bushes.
  • a grip handle is fixed to the body in order to enable the user to easily handle the chainsaw.
  • chainsaws are commonly known which are provided with the handle that protrudes to the rear of the motor, to the front of which the bar protrudes, an auxiliary handle being moreover provided fixed to the body of the chainsaw in an upward region with respect to the motor.
  • the handle is brought closer to the center of gravity of the chainsaw, than in the chainsaws described previously, so that the use thereof is less burdensome for the wrist joint.
  • the operator in order to reach the higher branches, the operator has to use a ladder or use a different tool, designed especially for the purpose, which consists of a telescopic bar to the end of which the chainsaw is fixed.
  • the aim of the present invention is to provide a chainsaw that makes it possible to overcome the drawbacks displayed by the structures of conventional chainsaws, specifically by enabling a less tiring use than the chainsaws known today and likewise by making it possible to obtain radii of action that are significantly more extended than those allowed by the chainsaws available today.
  • an object of the invention is to provide a chainsaw that is adaptable to the cut to be performed and to the region of work in which it is contingently used.
  • Another object of the invention is to provide a chainsaw that is more practical to use and less tiring than the chainsaws known today.
  • Another object of the invention is to provide a chainsaw that is more manageable than the chainsaws known today, and which with respect to these likewise permits a greater flexibility of use.
  • Another object of the invention is to provide a chainsaw that is structurally simple and easy to use, and which can be made at low cost.
  • the reference numeral 10 generally designates a chainsaw, particularly for trimming trees and bushes, that comprises
  • the chainsaw 10 is provided with an articulation 15 for connection of the body 11 to a handle 16 of the chainsaw 10.
  • the articulation 15 is located to the rear of the body 11 and defines an oscillation axis A of the handle 16 with respect to the body 11 for their mutual reversible rotation at least between
  • the articulation 15 comprises
  • the locking and release means 20 comprise two heads 21 and 22 for clamping the hinge parts 17 and 18, in order to lock them by friction against each other.
  • a first one 21 is integrally fixed to a first end 19a of the pivot 19, the second one 22 being provided with a female thread 23 for mating with the second end 19b of the pivot 19, which is threaded.
  • the hinge parts 17 and 18 are conveniently comprised between the heads 21 and 22 and clamped between these so as to prevent their mutual rotation when the second head 22 and the pivot 19 are tightened.
  • a chosen one of the heads 21 and 22, which in the accompanying figures is the second head 22, is shaped like a knob in order to be turned by the operator to tighten it or loosen it on the pivot 19.
  • the operator conveniently loosens the clamping between the two heads 21 and 22, thus loosening the second head 22 on the pivot 19, unscrewing it therefrom at least partially, then mutually rotates the handle 16 and the body 11 until the desired angle is obtained, in which the operator locks them by re-tightening the second head 22 on the pivot 19.
  • the female thread 23 is provided by embedding a threaded nut in the material of which the second head 22 is made.
  • the hinge parts 17 and 18 conveniently are provided with mutual abutment walls 24 and 25 which are shaped with protrusions 26, and complementary recesses 27, which are arranged circumferentially along the oscillation axis A so as to define preferential locking angles of the handle 16 with respect to the body 11.
  • the handle 16 comprises
  • the connector 30 advantageously is provided with
  • the connector 30 conveniently has a centrally folding structure comprising two half-shells 32 and 33 which are mutually pivoted along a longitudinal direction E of interconnection between the handgrip 28 and the stem 29.
  • the first part 30a of the connector 30 comprises front portions 32a and 33a of the half-shells 32 and 33 which are shaped complementarily to the second end 28b of the handgrip 28 in order to enclose it between them, the second part 30b of the connector 30 comprising rear portions 32b and 33b of the half-shells 32 and 33 which are shaped complementarily to the second end 29a of the stem 29 in order to enclose it between them.
  • the fixing means 31 preferably comprise elements for the mutual connection of the half-shells 32 and 33 such as for example screws 31a.
  • the latter frees the handgrip 28 from the connector 30 and from the stem 29, so as to be able to grip it directly.
  • the operator adjusts the angle of the handgrip 28 with respect to the body 11 according to the contingent conditions of use of the chainsaw 10, by loosening the locking and release means 20, subsequently rotating the handgrip 28 with respect to the body 11 about the oscillation axis A until the desired angle is reached, and then proceeding to lock them in such configuration by re-tightening the locking and release means 20.
  • the operator In order to reach for example high branches to be trimmed, the operator, having adjusted the angle of the handgrip 28 with respect to the body 11, connects the stem 29 thereto by way of the connector 30.
  • connection is achieved by closing the two half-shells 32 and 33 onto each other, simultaneously comprising between them the second end 28b of the handgrip 28 and the second end 29a of the stem 29, and then fixing the half-shells 32 and 33 by way of the screws 31a.
  • a first one 32 of the half-shells 32 and 33 is provided with a tooth 34 for engagement in a corresponding hole 35 provided on the second end 29a of the stem 29, thus, when the connector 30 is closed on the second end 29a, the tooth 34 engages the hole 35 thus preventing the extraction of the stem 29 from the connector 30 and likewise preventing the rotation thereof, by mutually integrally connecting them.
  • the invention fully achieves the intended aim and objects, by providing a chainsaw that makes it possible to overcome the drawbacks exhibited by the structures of conventional chainsaws, particularly by enabling a less tiring use than the chainsaws known today, thanks to the ability to adjust the orientation of the handgrip with respect to the bar, and likewise by making it possible to obtain radii of action that are significantly more extended than those allowed by the chainsaws available today, thanks to the ability to extend the handle by joining the stem to the handgrip by way of the connector.
  • a chainsaw according to the invention is moreover adaptable to the cut to be performed and to the region of work in which it is contingently used, by orienting the bar at will with respect to the handle.
  • a chainsaw according to the invention is more practical to use and less tiring than the chainsaws known today, the orientation of the bar with respect to the handle being adaptable to the type of work to be performed.
  • a chainsaw according to the invention is likewise more manageable than the chainsaws known today, and with respect to these it permits a greater flexibility of use.
  • a chainsaw according to the invention is structurally simple and easy to use, and can be produced at low cost.
EP12157108A 2011-02-28 2012-02-27 Scie à chaîne, en particulier pour écrêter les arbres et les buissons Withdrawn EP2492070A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000060A ITPD20110060A1 (it) 2011-02-28 2011-02-28 Motosega a catena, particolarmente per la potatura di alberi ed arbusti

Publications (1)

Publication Number Publication Date
EP2492070A1 true EP2492070A1 (fr) 2012-08-29

Family

ID=43976292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157108A Withdrawn EP2492070A1 (fr) 2011-02-28 2012-02-27 Scie à chaîne, en particulier pour écrêter les arbres et les buissons

Country Status (2)

Country Link
EP (1) EP2492070A1 (fr)
IT (1) ITPD20110060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022123060A1 (de) 2022-09-09 2024-03-14 Andreas Stihl Ag & Co. Kg Gehölzschneider

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207675A (en) * 1978-05-15 1980-06-17 Clarence Burchell Adjustable utility extension handle for electrically powered handtool
US4760646A (en) * 1987-01-09 1988-08-02 Frederick Siegler Tree pruner and hedge trimmer
DE8909508U1 (fr) * 1989-03-21 1989-09-28 Sachs-Dolmar Gmbh, 2000 Hamburg, De
EP1504655A1 (fr) * 2003-08-04 2005-02-09 BLACK & DECKER INC. Assemblage de poignées pour outil motorisé
WO2008029255A2 (fr) * 2006-09-05 2008-03-13 Senson Investments Limited Outil mécanique portatif
US20080295342A1 (en) * 2003-07-14 2008-12-04 Black & Decker Inc. Vegetation Pruning Device
EP2072200A1 (fr) 2007-12-20 2009-06-24 PELLENC (Société Anonyme) Scie à chaîne portative électrique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207675A (en) * 1978-05-15 1980-06-17 Clarence Burchell Adjustable utility extension handle for electrically powered handtool
US4760646A (en) * 1987-01-09 1988-08-02 Frederick Siegler Tree pruner and hedge trimmer
DE8909508U1 (fr) * 1989-03-21 1989-09-28 Sachs-Dolmar Gmbh, 2000 Hamburg, De
US20080295342A1 (en) * 2003-07-14 2008-12-04 Black & Decker Inc. Vegetation Pruning Device
EP1504655A1 (fr) * 2003-08-04 2005-02-09 BLACK & DECKER INC. Assemblage de poignées pour outil motorisé
WO2008029255A2 (fr) * 2006-09-05 2008-03-13 Senson Investments Limited Outil mécanique portatif
EP2072200A1 (fr) 2007-12-20 2009-06-24 PELLENC (Société Anonyme) Scie à chaîne portative électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022123060A1 (de) 2022-09-09 2024-03-14 Andreas Stihl Ag & Co. Kg Gehölzschneider

Also Published As

Publication number Publication date
ITPD20110060A1 (it) 2012-08-29

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