Detector of grass-bag fullness for mower

Details Detector of grass-bag fullness for mower Detector of grass-bag fullness for mower

1992-09-24

1994-06-21

Eley, Timothy V.

Harvesters

Motorized harvester

With condition-responsive operation

56 105, 56 166, 56202, 56DIG15, A01D 7528

Patent

active

053219392

ABSTRACT:
A transmission type light sensor is disposed in the vicinity of the exit of a shooter, which has the exit thereof positioned above a grass-bag opening, and the fullness of the grass-bag is detected when the light blocking state of the sensor continues longer than a predetermined time. A light emitting portion and a light receiving portion of the light sensor are positioned opposite to each other so that their optical axes are in coincidence, and they are firmly attached to both ends of a light sensor mounting member. The light sensor consists of a light sensor main body which is placed at one side of a cover, and a retroreflective board placed at the side of the cover opposite to the light sensor main body for reflecting incident light from the light emitting portion in the direction of incidence.

REFERENCES:
patent: 4228636 (1980-10-01), Homburg
patent: 4723398 (1988-02-01), Flenniker et al.
patent: 4926624 (1990-05-01), Murakawa et al.
patent: 4964266 (1990-10-01), Kolb
patent: 4981011 (1991-01-01), Olejak

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