WO2019236369A8 - Lawn mower blade drive system - Google Patents

Lawn mower blade drive system Download PDF

Info

Publication number
WO2019236369A8
WO2019236369A8 PCT/US2019/034584 US2019034584W WO2019236369A8 WO 2019236369 A8 WO2019236369 A8 WO 2019236369A8 US 2019034584 W US2019034584 W US 2019034584W WO 2019236369 A8 WO2019236369 A8 WO 2019236369A8
Authority
WO
WIPO (PCT)
Prior art keywords
blade
output shaft
prime mover
deck
drive system
Prior art date
Application number
PCT/US2019/034584
Other languages
French (fr)
Other versions
WO2019236369A1 (en
Inventor
Richard Simon CARTER
Original Assignee
The Toro Company
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 The Toro Company filed Critical The Toro Company
Priority to GB2018199.6A priority Critical patent/GB2588000B/en
Publication of WO2019236369A1 publication Critical patent/WO2019236369A1/en
Publication of WO2019236369A8 publication Critical patent/WO2019236369A8/en

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
    • A01D34/76—Driving mechanisms for the cutters
    • 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

Abstract

Embodiments of the present disclosure are directed to lawn mowers (e.g., walk power mowers), having a deck supported for travel over a ground surface. The deck may support a prime mover having an output shaft adapted to power a cutting blade contained within a cutting chamber defined by the deck. The mower may also include a drive system to power the cutting blade. In some embodiments, the cutting blade may attach to the output shaft of the prime mover via a friction interface such that, upon unintended blade contact with obstacles, the blade may rotationally slip relative to the output shaft. Moreover, the mower may include a blade brake clutch (BBC) adapted to permit selective activation and deactivation of the blade independent of the prime mover.
PCT/US2019/034584 2018-06-07 2019-05-30 Lawn mower blade drive system WO2019236369A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2018199.6A GB2588000B (en) 2018-06-07 2019-05-30 Lawn mower blade drive system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862681739P 2018-06-07 2018-06-07
US62/681,739 2018-06-07

Publications (2)

Publication Number Publication Date
WO2019236369A1 WO2019236369A1 (en) 2019-12-12
WO2019236369A8 true WO2019236369A8 (en) 2020-03-19

Family

ID=66913015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/034584 WO2019236369A1 (en) 2018-06-07 2019-05-30 Lawn mower blade drive system

Country Status (2)

Country Link
GB (1) GB2588000B (en)
WO (1) WO2019236369A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707362A (en) * 1952-11-03 1955-05-03 Buffalo Eclipse Corp Yieldable drive connection for a rotary lawn mower
US2875569A (en) * 1956-07-09 1959-03-03 Wilbur C Sauer Blade mounting means for rotary disc type mower
US4055935A (en) * 1974-04-10 1977-11-01 Malion William R Clutch brake mechanism for lawnmowers
DE3120888A1 (en) * 1981-05-26 1982-12-16 Solo Kleinmotoren Gmbh, 7032 Sindelfingen Lawnmower with an internal-combustion engine
US5581985A (en) * 1995-06-15 1996-12-10 Secosky; Paul M. Safety clutches for self power operated lawn mowers
FR2824376B1 (en) * 2001-05-04 2003-07-04 Commerciale Et D Engineering S GEAR TRANSMISSION FOR SELF-PROPELLED LAWN MOWER AND MOWER EQUIPPED WITH SUCH A TRANSMISSION

Also Published As

Publication number Publication date
GB2588000A (en) 2021-04-14
WO2019236369A1 (en) 2019-12-12
GB202018199D0 (en) 2021-01-06
GB2588000B (en) 2022-08-31

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