EP1066933A3 - Chain saw with saw chain brake - Google Patents

Chain saw with saw chain brake Download PDF

Info

Publication number
EP1066933A3
EP1066933A3 EP00110853A EP00110853A EP1066933A3 EP 1066933 A3 EP1066933 A3 EP 1066933A3 EP 00110853 A EP00110853 A EP 00110853A EP 00110853 A EP00110853 A EP 00110853A EP 1066933 A3 EP1066933 A3 EP 1066933A3
Authority
EP
European Patent Office
Prior art keywords
brake
chain
saw
outlet
band
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
EP00110853A
Other languages
German (de)
French (fr)
Other versions
EP1066933A2 (en
EP1066933B1 (en
Inventor
Egbert Steinbrueck
Juergen Dolata
Christian Hermes
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 EP1066933A2 publication Critical patent/EP1066933A2/en
Publication of EP1066933A3 publication Critical patent/EP1066933A3/en
Application granted granted Critical
Publication of EP1066933B1 publication Critical patent/EP1066933B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • B27B17/083—Devices for arresting movement of the saw chain

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Braking Arrangements (AREA)
  • Sawing (AREA)

Abstract

Bei Motorsäge mit einer Kettenbremseinrichtung, die eine Bremstrommel (16) und eine Bremsband (17), das aus einer Lösestellung in eine Bremsstellung überführbar ist, sowie zwei Auslösevorrichtungen umfaßt, von denen eine als eine über einen Handschutzbügel (14) auslösbare Rückschlagbremse (18) und die andere als eine bei Loslassen eines manuellen Betätigungsglieds zur Inbetriebnahme der Kettensäge wirksame Auslaufbremse (19) ausgebildet ist, weist zur Erzielung einer großen Bremswirkung bei nur geringem Kraftaufwand die Auslaufbremse (19) ein Bremsauslöseelement (30) auf, das im Bereich der Bremstrommel (16) mit Federkraft an das Bremsband (17) angedrückt ist und mit manueller Betätigung des Betätigungsglieds (28) gegen die Federkraft vom Bremsband (17) abhebt.

Figure 00000001
In the case of a chain saw with a chain brake device which comprises a brake drum (16) and a brake band (17) which can be converted from a release position into a brake position, and two release devices, one of which is a non-return brake (18) which can be released via a hand guard (14). and the outlet brake (19), which is designed as an outlet brake (19) which is effective when a manual actuating member is released for starting up the chainsaw, the outlet brake (19) has a brake release element (30) which, in the area of the brake drum ( 16) is pressed against the brake band (17) by spring force and lifts off the brake band (17) against the spring force by manual actuation of the actuating member (28).
Figure 00000001
EP20000110853 1999-07-07 2000-05-23 Chain saw with saw chain brake Expired - Lifetime EP1066933B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19931251 1999-07-07
DE1999131251 DE19931251A1 (en) 1999-07-07 1999-07-07 Chainsaw

Publications (3)

Publication Number Publication Date
EP1066933A2 EP1066933A2 (en) 2001-01-10
EP1066933A3 true EP1066933A3 (en) 2004-02-18
EP1066933B1 EP1066933B1 (en) 2006-09-20

Family

ID=7913880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000110853 Expired - Lifetime EP1066933B1 (en) 1999-07-07 2000-05-23 Chain saw with saw chain brake

Country Status (3)

Country Link
EP (1) EP1066933B1 (en)
JP (1) JP2001047403A (en)
DE (2) DE19931251A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20030014U1 (en) * 2003-07-08 2005-01-09 Ggp Italy Spa SAFETY DEVICE FOR CHAIN SAWS OR CHAINSAWS. -
DE102004020421B4 (en) * 2004-04-27 2016-01-28 Robert Bosch Gmbh Motor chain saw with non-return brake and coast brake
SE0402907D0 (en) * 2004-11-29 2004-11-29 Electrolux Ab Chain saw brake arrangement
GB0515884D0 (en) 2005-08-02 2005-09-07 Bosch Gmbh Robert Improvements in or relating to chainsaws
DE202006008733U1 (en) * 2006-05-31 2007-10-11 Dolmar Gmbh Braking band holding
CN101528430B (en) * 2006-10-19 2011-05-11 富世华智诺株式会社 Brake system of chain saw and chain saw
CN101570027B (en) * 2008-04-30 2013-01-30 苏州宝时得电动工具有限公司 Electric tool brake apparatus
JP5603588B2 (en) 2008-11-20 2014-10-08 追浜工業株式会社 Work machine with internal combustion engine
CN101758518B (en) * 2008-12-23 2013-01-30 苏州宝时得电动工具有限公司 Brake device of electric tool
JP5297290B2 (en) * 2009-07-23 2013-09-25 株式会社やまびこ Chain saw
EP2286970A1 (en) 2009-08-18 2011-02-23 Robert Bosch GmbH Power tool and method for providing user feedback
JP5462575B2 (en) 2009-10-05 2014-04-02 株式会社マキタ Electric tool
CN102398078B (en) * 2011-10-25 2013-12-18 浙江亚特电器有限公司 Mechanical brake structure of chain saw
JP5983926B2 (en) * 2012-08-15 2016-09-06 日立工機株式会社 Chainsaw
CN105127511B (en) * 2015-09-08 2017-08-18 嘉兴百佳机械有限公司 The supporting mechanism of brake connecting rod in a kind of brake device of electric chain saw
DE102017222077A1 (en) * 2017-03-16 2018-09-20 Robert Bosch Gmbh chainsaw
CN113119231B (en) * 2019-12-31 2023-06-13 苏州金莱克精密机械有限公司 Brake mechanism of chain saw and chain saw
DE102022211294A1 (en) 2022-10-25 2024-04-25 Robert Bosch Gesellschaft mit beschränkter Haftung Hand tool and hand tool device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE363419C (en) * 1921-04-10 1922-11-08 Mueller Maximilian Band brake
DE19614212A1 (en) * 1995-04-11 1996-10-17 Makita Corp Chain saw device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE363419C (en) * 1921-04-10 1922-11-08 Mueller Maximilian Band brake
DE19614212A1 (en) * 1995-04-11 1996-10-17 Makita Corp Chain saw device

Also Published As

Publication number Publication date
EP1066933A2 (en) 2001-01-10
DE19931251A1 (en) 2001-01-11
JP2001047403A (en) 2001-02-20
DE50013484D1 (en) 2006-11-02
EP1066933B1 (en) 2006-09-20

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