Two-lever three function control mechanism

Details Two-lever three function control mechanism Two-lever three function control mechanism

1990-12-21

1992-05-05

Lorence, Richard

Material or article handling

Vertically swinging load support

Shovel or fork type

74471, 74491, G05G 124, E02F 920

Patent

active

051102536

ABSTRACT:
Three functions on a work vehicle are controlled by two interconnected levers. The first lever controls the first and second functions and the second lever controls the first and third functions. The control levers are interconnected by a yoke having three downwardly projecting tangs. Two of the tangs are provided with connections points for the first and second control function linkages. The third tang provides a mounting point for a ball joint. A stub shaft is coupled to the yoke and the main ball joint and projects from the yoke into a stationary guide slot. The second lever is mounted to the stub shaft and the yoke. The second lever is also provided with a link having a connection point for the third control function linkage.

REFERENCES:
patent: 2818746 (1958-01-01), Hart
patent: 3424024 (1969-01-01), Derbfuss
patent: 3795152 (1974-03-01), Campbell
patent: 3955437 (1976-05-01), Heintz
patent: 3993175 (1976-11-01), Beveridge
patent: 4054083 (1977-10-01), Utter
patent: 4098286 (1978-07-01), Prime
patent: 4389151 (1983-06-01), Brown
patent: 4526055 (1985-07-01), Batchelor et al.
patent: 4716399 (1987-12-01), Nordlund
patent: 4938091 (1990-07-01), Waggoner et al.
Page 8613 of the PCT Gazette No. 26/100; abstract of International Publication WO 90/13863.

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