EP1764197A3 - Chainsaw with tensioning mechanism - Google Patents

Chainsaw with tensioning mechanism Download PDF

Info

Publication number
EP1764197A3
EP1764197A3 EP06118307A EP06118307A EP1764197A3 EP 1764197 A3 EP1764197 A3 EP 1764197A3 EP 06118307 A EP06118307 A EP 06118307A EP 06118307 A EP06118307 A EP 06118307A EP 1764197 A3 EP1764197 A3 EP 1764197A3
Authority
EP
European Patent Office
Prior art keywords
chain
chainsaw
saw
sprocket
tension
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.)
Granted
Application number
EP06118307A
Other languages
German (de)
French (fr)
Other versions
EP1764197B1 (en
EP1764197A2 (en
Inventor
Peter Heywood
Nicholas Tulip
Attila Farkas
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1764197A2 publication Critical patent/EP1764197A2/en
Publication of EP1764197A3 publication Critical patent/EP1764197A3/en
Application granted granted Critical
Publication of EP1764197B1 publication Critical patent/EP1764197B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B27B17/14—Arrangements for stretching the chain saw

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Advancing Webs (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Dry Shavers And Clippers (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Liquid Crystal (AREA)

Abstract

The present invention relates to a device for adjusting the tension in the saw chain (16) of a chain saw (10). The device comprises a clamping means (36), a tensioning means (38) in the form of a rotatable cam, and elongate rod which interacts with the rotatable cam at a first end, and a blade, upon which the saw chain is driven, at a second end. The chain is driven by a sprocket and rotation of the cam causes the elongate rod to longitudinally extend or retract, relative to the sprocket, to adjust the tension in the saw chain. The present invention also relates to a chainsaw including such a tensioning device.
EP06118307A 2005-08-03 2006-08-02 Chainsaw with tensioning mechanism Active EP1764197B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0515970.2A GB0515970D0 (en) 2005-08-03 2005-08-03 Chain saw

Publications (3)

Publication Number Publication Date
EP1764197A2 EP1764197A2 (en) 2007-03-21
EP1764197A3 true EP1764197A3 (en) 2009-03-11
EP1764197B1 EP1764197B1 (en) 2010-10-27

Family

ID=34984019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06118307A Active EP1764197B1 (en) 2005-08-03 2006-08-02 Chainsaw with tensioning mechanism

Country Status (5)

Country Link
EP (1) EP1764197B1 (en)
CN (1) CN1907663A (en)
AT (1) ATE485928T1 (en)
DE (1) DE602006017786D1 (en)
GB (1) GB0515970D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5146912B2 (en) * 2008-05-23 2013-02-20 日立工機株式会社 Chainsaw
JP4996702B2 (en) 2010-01-28 2012-08-08 株式会社丸山製作所 Chain saw
DE202010007886U1 (en) 2010-06-11 2010-10-07 Einhell Germany Ag Chainsaw with tensioning device
WO2012105876A1 (en) 2011-02-03 2012-08-09 Husqvarna Ab Wall or floor saw
WO2012126501A1 (en) * 2011-03-18 2012-09-27 Husqvarna Ab Chainsaw with guide bar clamping and chain tensioning assembly
EP2686147B1 (en) * 2011-03-18 2016-04-06 Husqvarna AB Chainsaw with guide bar clamping and chain tensioning assembly
DE102012211094A1 (en) * 2012-06-28 2014-01-02 Robert Bosch Gmbh Tool coupling device
CN104094781B (en) * 2014-06-20 2017-01-11 宁波大叶园林设备有限公司 Lithium electric chain saw provided with logarithmic spiral for steady regulation
CN107537412B (en) 2016-06-27 2021-06-01 思拓凡生物工艺研发有限公司 Method and system for preparing polymeric microspheres
CN106171827B (en) * 2016-08-26 2022-12-09 苏州金莱克精密机械有限公司 Tool-free tensioning mechanism of chain saw
DE102020002073A1 (en) * 2019-04-23 2020-10-29 Makita Corporation chainsaw
CN110757588A (en) * 2019-11-15 2020-02-07 泰州市万里液压工具厂 Electric saw convenient to change sawtooth
CN110788938A (en) * 2019-11-29 2020-02-14 常州格力博有限公司 Chain saw
CN112976170B (en) * 2021-03-15 2022-09-16 汪子友 Adjustable high-efficient electric saw

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001049465A1 (en) * 1999-12-29 2001-07-12 Robert Bosch Gmbh Chain saw and chain tensing device therefor
EP1440777A1 (en) * 2003-01-25 2004-07-28 Narex Ceska Lipa a.s. Chain saw

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636995A (en) 1970-07-02 1972-01-25 Textron Inc Tensioner for saw chain
FI101353B1 (en) 1997-01-30 1998-06-15 Lako Forest Oy Method and apparatus for tightening the chain of a cutting saw

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001049465A1 (en) * 1999-12-29 2001-07-12 Robert Bosch Gmbh Chain saw and chain tensing device therefor
EP1440777A1 (en) * 2003-01-25 2004-07-28 Narex Ceska Lipa a.s. Chain saw

Also Published As

Publication number Publication date
ATE485928T1 (en) 2010-11-15
CN1907663A (en) 2007-02-07
EP1764197B1 (en) 2010-10-27
DE602006017786D1 (en) 2010-12-09
EP1764197A2 (en) 2007-03-21
GB0515970D0 (en) 2005-09-07

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