Method and apparatus for acceleration and deceleration control o

Details Method and apparatus for acceleration and deceleration control o Method and apparatus for acceleration and deceleration control o

1991-07-15

1992-12-15

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

414279, 414281, B66B 920

Patent

active

051708639

ABSTRACT:
A storage and retrieval machine having a base movable in opposite horizontal directions, a mast mounted on the base, and a carriage movable in opposite vertical directions on the mast. A drive is also provided for moving the base and carriage in their respective opposite horizontal directions or opposite vertical directions. A control is connected to the drive for transmitting to the drive for either the base or the carriage, a first signal for a fast acceleration rate in one of the opposite directions of movement, a second signal for a slow acceleration rate in the other of the opposite directions of movement, a third signal for a slow deceleration rate in one of the opposite directions of movement, a fourth signal for a fast deceleration rate in the other of the opposite directions of movement, and a direction signal to move in one of the opposite directions. The drive is responsive to the control to move either one of the base and carriage in their associated opposite directions of movement and accelerate and decelerate the base or carriage in accord with the respective acceleration and deceleration rate signals for the movement direction.

REFERENCES:
patent: 3542161 (1970-11-01), Ulinski
patent: 4252217 (1981-02-01), Benjamin
patent: 5022496 (1991-06-01), Klopfleisch et al.

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