公开(公告)号：US3601210A

公开(公告)日：1971-08-24

申请号：US3601210D

申请日：1969-06-12

Applicant: CATERPILLAR TRACTOR CO

Inventor： STEDMAN ROBERT N ,  SUNDERLIN DONALD E ,  LEGGETT FREDERICK R ,  DAFT WILLIS R

IPC: B60T11/10 ,  B60T13/68 ,  B62D11/08 ,  B62D49/06 ,  B62D11/06

CPC classification number: B60T11/103 ,  B60T13/683 ,  B62D11/08 ,  B62D49/0642

Abstract: A steering system for a tractor or combined tractors having four tracks in side-by-side relationship in which power to one track only, wither extreme right or extreme left is interrupted while full power to all other tracks continues to drive. Brake means for braking all tracks simultaneously is included, and means effective when power to one track is interrupted, to direct the braking force exclusively to that track.