Cutlery – Cutting tools – With blade moving means
Patent
1987-02-09
1988-07-26
Yost, Frank T.
Cutlery
Cutting tools
With blade moving means
56 127, A01G 306, A01D 3463
Patent
active
047591285
ABSTRACT:
A transmission device adopted for a working tool such as a weed cutter having an engine, a rotary blade, and a gear case for supporting the rotary blade. The transmission device comprises an operation pipe for connecting the engine with the gear case, a transmission shaft disposed inside the operation pipe to transmit the torque of the engine to the rotary blade, and a bearing pipe interposed between the operation pipe and the transmission shaft. The inner surface of the bearing pipe contacts with the outer surface of the transmission shaft to support the transmission shaft rotatably. A plurality of grooves are formed circumferentially on the inner surface of the bearing pipe with predetermined intervals to reduce the contacting area thereof with respect to the transmission shaft. The transmission device further comprises a vibration isolator which is fixed to an end of the operation pipe and removably engaged with a clutch housing of the engine.
REFERENCES:
patent: 3977078 (1976-08-01), Pittinger
patent: 4006528 (1977-02-01), Katsuya
patent: 4126928 (1978-11-01), Hoff
patent: 4226021 (1980-10-01), Hoff
patent: 4236310 (1980-12-01), Muller
patent: 4286675 (1981-09-01), Tuggle
patent: 4335585 (1982-06-01), Hoff
patent: 4586322 (1986-05-01), Yokocho
Akashi Toshio
Ebunuma Takanori
Katoh Hiroshi
Sawada Toshiharu
Folkerts Michael D.
Komatsu Zenoah & Co.
Yost Frank T.
LandOfFree
Transmission device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-251908