Harvesters – Motorized harvester – With condition-responsive operation
Patent
1988-06-10
1989-12-19
Neuder, William P.
Harvesters
Motorized harvester
With condition-responsive operation
56DIG15, 180131, E21B 3464
Patent
active
048874159
ABSTRACT:
An automated self propelled lawn mower utilizes a pair of drive motors for independently driving left and right hand drive wheels. Each drive motor is coupled to the respective drive wheel by a double output gear reduction unit. One side of the output shaft from each gear reduction unit is provided with a rotary photo encoder for providing speed and position information relating to each drive wheel. This information from each rotary photo encoder is fed to a computer control via a computer interface. Each independent wheel drive motor is computer controlled through an interface and motor drive relays. An infrared obstacle detector is mounted on each corner of the mower frame for detecting obstructions. Grass touch detection switches on the rear of the mower frame provide an indication of the relative position of the cut or uncut grass which is fed through the computer via the interface circuit for providing computer directional control to the independent wheel drive motors which steer the mower along the proper track. A separate blade drive motor is turned on or off by a photo switch which detects uncut grass. The speed of the blade drive motor is controlled by a manual switch. A floor polishing pad may be substituted for the lawn mower blade to enable use of the device as an automated floor polisher.
REFERENCES:
patent: 3425197 (1969-02-01), Kita
patent: 3550714 (1970-12-01), Bellinger
patent: 3570227 (1971-03-01), Bellinger
patent: 3650097 (1972-03-01), Nokes
patent: 3924389 (1975-12-01), Kita
patent: 4180964 (1980-01-01), Pansire
patent: 4184559 (1980-01-01), Rass
patent: 4347908 (1982-09-01), Anderson
patent: 4528804 (1985-07-01), Williams
patent: 4573547 (1986-03-01), Yoshimura et al.
patent: 4603753 (1986-08-01), Yoshimura et al.
patent: 4777785 (1988-10-01), Rafaels
Kearns Jerry T.
Neuder William P.
LandOfFree
Automated lawn mower or floor polisher does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automated lawn mower or floor polisher, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated lawn mower or floor polisher will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1895968