[특허]Lawn mower blade control apparatus

Lawn mower blade control apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A01D-075/20
출원번호	US-0581029 (1975-05-27)
발명자 / 주소	Hoff Stephen J. (Richmond IN)
출원인 / 주소	Hoffco, Inc. (Richmond IN 02)
인용정보	피인용 횟수 : 29 인용 특허 : 0

초록 ▼

Mounting and control apparatus for a driven element such as a lawn mower blade mounted coaxially on an engine drive shaft, in an arrangement in which, under control of a deadman lever, the driven element is normally de-clutched from the shaft and stopped by a brake, as when the driving engine is idled, and for operation is released by the brake and clutched by a centrifugal clutch to the drive shaft, as when the engine is speeded up. The compact nested assembly includes a driven drum element having an outer cylindrical brake and clutch drum and an inner bearing ring which lies within the axial length of the drum and is mounted on the outer race of a ball bearing carried by a reduced-diameter bearing sleeve on a main hub fixed to the motor shaft. A clutch carrier plate on the hub carries centrifugal shoes engageable with the inside of the drum and partially nested between it and the bearing ring. The hub carries a flywheel when the engine is designed to depend on the mower blade for flywheel mass. A protective bowl about the assembly forms a mounting platform for an arcuate brake-mounting plate which supports an elongated brake band about the drum. One band end straddles and is anchored to the plate; the other straddles the plate and is connected between a brake-applying spring anchored on the plate and a brake-release link connected to an eccentric pin on a crank wheel rotatable on the mounting plate.

대표청구항 ▼

In a lawn mower comprising a blade drive shaft depending below a mower deck, a blade carrier rotatably mounted on such shaft and inCluding a drum rotatable with said carrier and adapted to be engaged by an encircling brake band, the improvement comprising a bowl for enclosing said drum, having a top mounting flange for mounting the bowl on the mower deck, a generally circular said wall depending from said flange, a generally flat annular platform joined to said side wall at the bottom thereof and extending inward therefrom toward said drum, and a lower wall portion extending downward and inward from the inner edge of said platform into close clearance relation with a lower portion of said blade carrier, a mounting plate mounted on said platform and extending arcuately about the drum, a brake band anchored at one end to said plate and extending therefrom about the drum substantially in excess of 180°so as to present its free end toward said mounting plate, a spring or the like connecting said free end to a spring anchor on said plate and acting to bias the brake band into braking engagement with the drum, a reaction bracket mounted on said platform, and manually operable tension means connected between the free end of the brake band and such reaction bracket and operable to retract the free end of the brake band against the spring bias to release the brake.

이 특허를 인용한 특허 (29)

Ikeno, Tetsuro; Hasei, Shoji, Blade mounting structure of lawn mower.
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Huibregtse, Mark; Vlietstra, Nathaniel J., Brake system and lawn mower implementing the same.
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Nagashima Akira,JPX, Braking device for power working machine.
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Tickner, Gary; Mills, Robert A.R., Centrifugal backspin brake.
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Kaskawitz, Scott; Bender, Brian; Osborne, Christopher M., Centrifugal blade brake clutch apparatuses and methods.
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Cody John M. (1954 W. Sharon St. Quincy FL 32351) Weaks William L. (650 S. Virginia St. Quincy FL 32351), Centrifugal clutch and brake for lawnmower.
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Foster Leslie W. (Wayzata MN), Clutch and blade brake for lawn mower.
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Hoff Stephen J. (Richmond IN), Clutch and brake for rotary lawn mower.
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Zindler Hugh A. (Rte. 3 ; Box 264 ; Pleasant Valley La. Watertown WI 53094), Clutch and brake mechanism.
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Harkness Joseph R. (Germantown WI) Mitchell Robert K. (Brookfield WI), Clutch-brake mechanism for rotary mower engines.
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Meldahl Robert D. (Granville OH) Borel Robert J. (Columbus OH), Clutch-brake system for rotary mower.
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Hoff Stephen J. (Richmond IN), Combined flywheel and clutch driver, and control and warning device.
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Hoff Stephen J. (Richmond IN), Combined flywheel and clutch mechanism for lawn mower blade.
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Hermanson William O. (Kiel WI), Engine flywheel brake toggle mechanism.
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Kronich Peter G. (Sheboygan WI) Arendt Dan R. (Belgium WI), Engine shut-off system with flywheel braking.
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Roche,Ronald H.; Woody,John C., Evaporative emission controls.
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Roche, Ronald H.; Swanson, Mark S.; Woody, John C., Evaporative emission controls in a fuel system.
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Roche,Ronald H.; Swanson,Mark S.; Woody,John C., Evaporative emission controls in a fuel system.
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Roche, Ronald H.; Swanson, Mark S.; Woody, John C., Evaporative emissions controls in a fuel system.
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Hoff Stephen J. (Richmond IN), Lawn mower blade control mechanism.
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Hoff Stephen J. (Richmond IN), Lawn mower blade rotation warning device.
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Smith LaVerne D. (Wataga IL), Lawn mower with combined engine brake and ignition control.
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Owens Boyd L. (P.O. Box 142 Cartersville OK 74934), Lawnmower safety control system.
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Takagaki Katsumi (Urawa JPX) Ito Yukinori (Kawagoe JPX) Sumi Kiyohide (Koga JPX), Motor and brake controls.
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Thesman Dana F. (Torrance CA), Mower drive assembly.
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Schave Floyd D., Pavement cutting machine.
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Bontrager Robert C. ; Pitman Richard J. ; Scott Paul L., Quick change blade assembly for a rotary mower.
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Gruell, Jeffery D.; Harreld, Timothy D.; Dowdy, Steven H., Safety system for engine shutdown, and engines and equipment incorporating the same.
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Seifert Lester H. (R.R. #2 ; Park Ave. Kiel WI 53042), Single cable control system for lawn mower.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Lawn mower blade control apparatus 원문보기

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