AU2003289803A1 - Security coupling for a lawn mower - Google Patents
Security coupling for a lawn mowerInfo
- Publication number
- AU2003289803A1 AU2003289803A1 AU2003289803A AU2003289803A AU2003289803A1 AU 2003289803 A1 AU2003289803 A1 AU 2003289803A1 AU 2003289803 A AU2003289803 A AU 2003289803A AU 2003289803 A AU2003289803 A AU 2003289803A AU 2003289803 A1 AU2003289803 A1 AU 2003289803A1
- Authority
- AU
- Australia
- Prior art keywords
- coupling
- centrifugal
- lawn mower
- friction
- security
- 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.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/08—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360 degrees
-
- 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
- A01D34/67—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 hand-guided by a walking operator
- A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
- A01D34/6806—Driving mechanisms
- A01D34/6812—Braking or clutching mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
- F16D67/02—Clutch-brake combinations
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D2101/00—Lawn-mowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
- F16D2121/16—Mechanical for releasing a normally applied brake
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Braking Arrangements (AREA)
- Harvester Elements (AREA)
- Inorganic Insulating Materials (AREA)
- Scissors And Nippers (AREA)
- Transplanting Machines (AREA)
Abstract
The invention relates to a security coupling for decoupling and reducing the speed of the blade of a motor driven lawn mower during continuous operation of the wheels. The security coupling comprises a pre-tensed centrifugal-force friction coupling (7,9) with rotational speed-dependent friction force amplification, and the centrifugal weights (10) of the centrifugal force friction coupling also act as brake blocks (10) for a band belt (8,10). According to the invention, a special self-inhibiting band brake having various friction values is used, thereby enabling the band brake to remain relatively thin yet preventing the band brake (8) from tearing.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10250035A DE10250035A1 (en) | 2002-10-27 | 2002-10-27 | Safety clutch for a self-propelled lawnmower |
DE10250035.5 | 2002-10-27 | ||
PCT/DE2003/003569 WO2004039142A1 (en) | 2002-10-27 | 2003-10-27 | Security coupling for a lawn mower |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2003289803A1 true AU2003289803A1 (en) | 2004-05-25 |
Family
ID=32103077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2003289803A Abandoned AU2003289803A1 (en) | 2002-10-27 | 2003-10-27 | Security coupling for a lawn mower |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1558069B1 (en) |
AT (1) | ATE347788T1 (en) |
AU (1) | AU2003289803A1 (en) |
DE (2) | DE10250035A1 (en) |
ES (1) | ES2279205T3 (en) |
WO (1) | WO2004039142A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8733072B2 (en) | 2011-11-04 | 2014-05-27 | Briggs & Stratton Corporation | Starter system for an engine |
ITBO20110716A1 (en) * | 2011-12-15 | 2013-06-16 | Gallignani Spa | SAFETY DEVICE FOR AGRICULTURAL MACHINES, AND ITS AGRICULTURAL MACHINE |
CN103615482B (en) * | 2013-12-03 | 2016-01-20 | 北京航空航天大学 | A kind of microminiature mechanical type centrifugal friction speed limiting device |
DE102020126183A1 (en) | 2020-10-07 | 2022-04-07 | Schaeffler Technologies AG & Co. KG | axial flow machine |
US20230276733A1 (en) * | 2022-03-04 | 2023-09-07 | Techtronic Cordless Gp | Robotic garden tool with quick change mechanism |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2182386A (en) * | 1936-11-11 | 1939-12-05 | Chrysler Corp | Braking mechanism |
DE1248305B (en) * | 1964-10-02 | 1967-08-24 | Glyco Metall Werke | Sliding or friction material based on Al, Mg or Ti with oxidic filler |
DE1694488B2 (en) * | 1968-01-11 | 1973-09-13 | Jurid Werke Gmbh, 2056 Glinde | Friction material |
US4669590A (en) | 1976-02-02 | 1987-06-02 | Zindler Hugh Alan | Brake released clutch mechanism |
US4290512A (en) * | 1977-06-23 | 1981-09-22 | Zindler Hugh Alan | Clutch and brake mechanism |
US4326368A (en) | 1980-06-12 | 1982-04-27 | Hoffco, Inc. | Clutch and brake for rotary lawn mower |
US4416107A (en) * | 1980-06-12 | 1983-11-22 | Hoffco, Inc. | Lawn mower blade control mechanism |
DE8426495U1 (en) * | 1984-09-07 | 1985-01-03 | Wolf-Geräte GmbH, 5240 Betzdorf | PRUNING SHEARS |
US4696381A (en) | 1985-09-27 | 1987-09-29 | Johnson Sr Lee A | Clutch and brake apparatus |
JPH068216B2 (en) * | 1989-06-22 | 1994-02-02 | トヨタ自動車株式会社 | Sliding member |
DE19848624A1 (en) * | 1997-10-25 | 1999-04-29 | Viking Umwelttechnik | Safety clutch for lawn tractor is positioned between inner and outer drive shaft |
DE19950622A1 (en) * | 1999-10-20 | 2001-05-31 | Schott Glas | Friction lining for components in brake systems |
-
2002
- 2002-10-27 DE DE10250035A patent/DE10250035A1/en not_active Ceased
-
2003
- 2003-10-27 AT AT03782088T patent/ATE347788T1/en not_active IP Right Cessation
- 2003-10-27 AU AU2003289803A patent/AU2003289803A1/en not_active Abandoned
- 2003-10-27 ES ES03782088T patent/ES2279205T3/en not_active Expired - Lifetime
- 2003-10-27 EP EP03782088A patent/EP1558069B1/en not_active Expired - Lifetime
- 2003-10-27 WO PCT/DE2003/003569 patent/WO2004039142A1/en active IP Right Grant
- 2003-10-27 DE DE50305987T patent/DE50305987D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1558069A1 (en) | 2005-08-03 |
WO2004039142A1 (en) | 2004-05-13 |
DE50305987D1 (en) | 2007-01-25 |
ATE347788T1 (en) | 2007-01-15 |
DE10250035A1 (en) | 2004-05-13 |
EP1558069B1 (en) | 2006-12-13 |
ES2279205T3 (en) | 2007-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |