The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 1985
Filed:
Aug. 01, 1983
Paul R Schuck, Davenport, IA (US);
J. I. Case Company, Racine, WI (US);
Abstract
A failsafe brake actuating assembly for crawler-type tractors which automatically engages a braking device in situations where there is a loss of engine power or the like with resulting incapacitation of the tractor's primary braking system. The brake actuating assembly includes a brake actuating cylinder connected to a brake actuating arm for rotating the arm in opposite directions. The assembly further includes an adjustment member having a first bearing support for rotatably mounting the brake actuating arm and a plurality of peripheral teeth members. The actuating arm includes a second bearing support, the axis of which is eccentric to the axis of the first bearing support. A torsion spring connecting link is mounted on the second bearing support with one end of the connecting link attached to the actuating arm and the other end of the connecting link engaging the teeth of the adjustment member. The tension between the ends of the spring connecting link increases in response to rotation of the actuating arm in a first direction due to the eccentricity between the axes of the first and second bearing supports. Rotation of the actuating arm in an opposite direction generates a small clearance gap between the end of the spring connecting link and the adjustment member teeth. This clearance gap tends to increase as internal brake wear occurs and eventually the end of the spring connecting link slips on the adjustment member teeth thereby adjusting the mechanism for wear.