초록 ▼

An adaptor for a three point hitch of a tractor allows the adaptor to attach to the hitch bar of a trailer without the necessity of vertical or horizontal adjustment of the position of the tractor relative to the trailer. The adaptor comprises a vertical post having an upper end attached to a centre

An adaptor for a three point hitch of a tractor allows the adaptor to attach to the hitch bar of a trailer without the necessity of vertical or horizontal adjustment of the position of the tractor relative to the trailer. The adaptor comprises a vertical post having an upper end attached to a centre arm of the three point hitch. A pair of side arms of the adaptor attached to the lower arms of the three point hitch. A J-shaped hook member has a longer leg projecting through a slot in the post and a shorter leg which abuts against a rear face of the post in the hitching position. The hook engages around a loop attached to the trailer. A cylinder coupled to a forward end of the longer leg can actuate pivotal movement of the hook about a pin attached across the post to move the hook from the hitching position to a release position.

대표청구항 ▼

[ I claim:] [1.] A hitch apparatus for attachment of a trailer to a three point hitch of a tractor, the three point hitch comprising a pivotal centre upper arm, a pair of lower arms arranged each on a respective side of the centre arm and lift means for raising and lowering the lower arm; the appara

[ I claim:] [1.] A hitch apparatus for attachment of a trailer to a three point hitch of a tractor, the three point hitch comprising a pivotal centre upper arm, a pair of lower arms arranged each on a respective side of the centre arm and lift means for raising and lowering the lower arm; the apparatus comprising:an upright post member;first attachment means at an upper end of the post member for mounting on an outer end of the centre arm;two side mount members each projecting out to a respective side of the post member and having second attachment means thereon for mounting on an outer end of a respective one of the lower arms;a hitch coupling for mounting on a hitch bar of the trailer and including a loop member lying in a horizontal plane and forming a horizontal front bar portion transverse to the hitch bar;a hitch engagement member mounted on a post member and comprising a J-shaped hook portion projecting rearwardly from a rear face of the post member including a longer leg and a shorter leg lying in a vertical plane so as to receive the bar portion within the hook portion between the legs in a hitching position;the longer leg extending through the post member and being pivotally mounted thereon for pivotal movement of the hook portion about a horizontal axis at right angles to the plane of the hook portion;and actuating means connected between a forward end of the longer leg and the post for actuating pivotal movement of the hook portion between the hitching position and a release position.