Method of converting backhoe controls

Details Method of converting backhoe controls Method of converting backhoe controls

1991-05-10

1992-08-18

Bucci, David A.

Metal working

Method of mechanical manufacture

Converting

137289, 137637, 74471R, 74481, 414694, B23P 1500

Patent

active

051387565

ABSTRACT:
A control mechanism for operating a backhoe is disclosed wherein the controls are adaptable to be configured in a selected one of a two lever system, a three lever system, or a four lever system. The control mechanism includes a first pivot axis on which the control levers are pivotally mounted and a second pivot axis on which a series of bell cranks are pivotally mounted. Various linkages interconnect the control levers with the bell cranks, and the bell cranks with hydraulic valve spools in a manner in which the valve body does not have to be reconfigured depending upon which control system is utilized. The control levers are configured with a pivot casting having a bent control rod threadably received therein, the position of which is fixed by a lock nut permitting the control handle to be positioned in the orientation desired by the operator.

REFERENCES:
patent: 4019401 (1977-04-01), Drone
patent: 4389151 (1983-06-01), Brown
patent: 4736647 (1988-04-01), Shimoie et al.

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