Lift truck mast positioning mechanism

Details Lift truck mast positioning mechanism Lift truck mast positioning mechanism

1976-07-16

1977-11-22

Cherry, Johnny D.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66F 906

Patent

active

040591727

ABSTRACT:
An upwardly extending mast is disposed adjacent a forward end of a lift truck main frame which has a mounting tower secured to and extending upwardly therefrom. A pair of longitudinally extending vertically spaced parallel arms have their forward ends pivotally connected to the mast and their rearward ends individually pivotally connected to a pair of sector gear devices rotatably mounted on the mounting tower in spaced relation to one another. A gear device is rotatably mounted to the tower in meshing engagement with both of the sector gear devices and includes a crank arm which extends therefrom and has its distal end pivotally connected to one end of a guide link which has its other end pivotally connected to one of the pair of arms. A motor device is provided for raising the mast relative to the main frame.

REFERENCES:
patent: 3782502 (1974-01-01), Kobayashi et al.

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