GB900938A - Improvements in or relating to tractor hitches - Google Patents

Abstract

900,938. Tractor power lift mechanisms. FORD MOTOR CO. Ltd. May 5, 1961, No. 16441/61. Addition to 836,650. Class 79(1). In a trailer hitch for a tractor having lift arms operated by the hydraulic lift system as disclosed in the parent Specification and which comprises a towing hook, means pivotally connected to the tractor to raise and lower the towing ,hook, slotted links connecting such lift means with the lift arms and manually releasable latch means by which the lift means is locked in a raised position, the slotted links permitting use of the lift arms while the towing hook is raised, the latch means is applied directly to a part of the towing hook assembly. The hook 9 may be raised to an operative position whereby a tongue 27 on a casting 13 prevents the implement drawbar from jumping out and in which position a spring loaded latch member 11 (Fig. 2) engages within a slot provided in a tongue 23 of the hook. A shoulder 29 prevents accidental withdrawal of the latch, it being necessary to raise the hook slightly by the lift means to effect withdrawal. The latch m a y be withdrawn, against the pressure of spring 15, by a linkage 19, 21 operated by pedal 17. Alternatively, the latch may engage the towing bar 10 or hook at any other position.