摘要 |
A lever is integral with a rotatable hub (40). A brake lever (70) pivoted on a pivot (16) is biased by a spring (76) to urge a brake show (74) against part of the hub (40). A detent lever (80) pivoted on the same pivot (16) is biased by a spring (88) to engage a detent roller (84) with a sector of the hub containing detent notches (62, 64). A centering spring biases the lever hub (40) to the illustrated, neutral position. A rotary cam (26) acts on cam followers (72, 82) on the brake lever (70) and detent lever (80) to disengage both brake and detent in the position shown. The cam is rotatable to other positions by a solenoid (90) pawl (92) and ratchet wheel (36), one position allowing the brake to engage (establishing a friction-held mode for the lever) and another position allowing the detent to engage, providing for detent holding of the lever in its spring centred mode. |
申请人 |
DEERE & CO., 61265 MOLINE, ILL., US |
发明人 |
BAXTER, KENNETH DALE, CEDAR FALLS IOWA 50613, US;BLUEM, GARY RAYMOND, WAYZATA MINNESOTA 55391, US;HUMPHREY, DALLAS RICHARD, GOLDEN VALLEY MINNESOTA 55427, US;KITTLE, CARL EDWIN, CEDAR FALLS IOWA 50613, US;KLUGE, DOUGLAS JACOB, GOLDEN VALLEY MINNESOTA 55427, US |