Motor vehicles – Steered by walking attendant
Patent
1981-08-05
1984-04-24
Pekar, John A.
Motor vehicles
Steered by walking attendant
200 6B, 200153L, 200339, B62D 5104
Patent
active
044442840
ABSTRACT:
A control system for an industrial lift truck includes a housing, a cam plate rotatably mounted within said housing, and a plurality of switches urged against and riding on a surface of the cam plate. The cam plate is provided with grooves in its surface along a part of the paths defined by each switch traversing the plate. Accordingly, the movement of the plate actuates switches that are forced into or out of the corresponding groove. The closing and opening of switches produces signals which are used to select the speed and the drive direction of the lift truck.
The cam plate can include detents which accommodate a ball as the cam is rotated to a position where the detent corresponds to the ball. The ball is urged into the detent by a spring. Consequently, the operator is able to select discrete speeds of the lift truck and the rotation of the cam plate is restricted.
The control system can also include additional controllers for controlling other functions of the lift truck. All controllers are preferably close enough to the grip bars of the handle to permit the operator to actuate any of them without removing either hand from the grip bars.
REFERENCES:
patent: 2401113 (1946-05-01), Schroeder
patent: 2957536 (1960-10-01), Ulinski
patent: 3168157 (1965-02-01), Ulinski
patent: 3190994 (1965-06-01), Becker et al.
patent: 3300612 (1967-01-01), Quayle
patent: 3477539 (1969-11-01), De Pung et al.
patent: 3557893 (1971-01-01), Kohls
patent: 3657493 (1972-04-01), Horsley
Big Joe Manufacturing Company
Pekar John A.
LandOfFree
Control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-111520