All terrain/high speed undercarriage

Details All terrain/high speed undercarriage All terrain/high speed undercarriage

1983-06-21

1986-06-17

Pekar, John A.

Motor vehicles

Special wheel base

Five or more wheels

280 6H, B62D 6110

Patent

active

045950695

ABSTRACT:
An undercarriage (12) includes a primary frame (22) and a plurality of secondary frames (26) which in turn carry wheel members (28). The secondary frames (26) are urged to pivot away from the primary frame (12) by spring mechanisms (38). The center secondary frames (26c) are each biased outwardly by two spring mechanisms (38) while the endmost secondary frames (26e) are biased outwardly by a single spring mechanism (38). An undercarriage (112) includes a primary frame (122) and a plurality of secondary frames (126) which in turn carry wheel members (128). Pivotal movement of the endmost secondary frames (126e) is controlled by spring/shock absorber assemblies (134). Pivotal movement of the center secondary frame (126c) is controlled by a spring/shock absorber/cylinder assembly (136) which selectively positions the center wheel member (128) below the end wheel member to facilitate skid steering, or in alignment with the end wheel members to facilitate high speed operation.

REFERENCES:
patent: 1836446 (1931-12-01), Christie
patent: 2044306 (1936-06-01), Kegresse
patent: 2890064 (1959-06-01), Hudson
patent: 3299978 (1967-01-01), Sponsler
patent: 3930550 (1976-01-01), Rose et al.
patent: 4310173 (1982-01-01), Varady
patent: 4315631 (1982-02-01), Rainville
patent: 4325443 (1982-04-01), Fischer et al.

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