Controlling arrangement

Details Controlling arrangement Controlling arrangement

1985-01-22

1986-01-14

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 28, 414273, 414674, 2502221, 356400, B66B 920

Patent

active

045640858

ABSTRACT:
Controlling arrangements of the type used for aligning a load engaging assembly with a load to be lifted tend to be bulky, costly, unable to accurately position the load engaging assembly with the load to be lifted, and unable to accommodate different types of load supporting structures. A controlling arrangement having a signal assembly having first and second spaced apart portions is provided. The first portion is adapted to deliver a first signal and receive a reflection of the first signal and the second portion is adapted to deliver a second signal and to receive a reflection of the first signal. A single sensing device is adapted to receive the reflected signals and a selecting device controls the operation of the first and second signal assembly portions. Therefore, the problems of bulk, cost, inaccuracy and flexibility are eliminated. The controlling arrangement is particularly suited for use on a material handling vehicle.

REFERENCES:
patent: 3672470 (1982-06-01), Ohntrup et al.
patent: 3824020 (1974-07-01), Pease
patent: 3973685 (1976-08-01), Loomer
patent: 4105339 (1978-08-01), Wirtanen
patent: 4212375 (1980-07-01), Peterson et al.
patent: 4328422 (1982-05-01), Loomer
patent: 4441817 (1984-04-01), Pryor
patent: 4502823 (1985-03-01), Wronski et al.

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