Quick hitch attachment

Claim 2

A quick hitch device for coupling the draft links of a tractor with an implement having spaced draft pins adapted to be connected to the hitch, comprising in combination, a frame member having a pair of spaced hook members adapted to receive the implement spaced draft pins, a pair of latch means pivoted on said frame and movable between a first locking position where a draft pin contained in each hook member is prevented by the lower edge of said latch means from leaving the hook and a second release position wherein the pin may be released from the hook, overcenter toggle means carried by the frame and connected to each of said latch means, said overcenter means having a first normal position holding said latch in its locking position, a trigger pivoted on said frame and positioned to be engaged by the draft pins only above said latch means lower edge, said trigger operable to engage said overcenter means to move it to a second position permitting said latch to be moved to its second release position permitting entry of draft pins into the hook, and a control member connected to the overcenter means and manually operable to move the same to Release position to enable release of the draft pin from the hook.

Claim 3

The hitch device of claim 1 wherein said overcenter toggle means includes spring means urging the same to its first normal position and wherein said trigger and said control member act to move the overcenter means against the spring means.

Claim 4

The hitch device of claim 2 wherein lock means are provided to hold the control member in position to hold the overcenter toggle means in release position.

Claim 5

The hitch device of claim 1 wherein said control member extends above said frame and is positively connected to said overcenter means and serves as an indicator signal to enable the tractor operator to know if the latch is in release or lock position.

Claim 6

The hitch device of claim 1 wherein said overcenter toggle means is vertically spaced above the latch and hook to provide clearance for connecting the tractor draft links at several vertically spaced locations on said frame.

Claim 7

The hitch device of claim 1 wherein a lost motion connection between the latch means and trigger means causes the latch means to move the trigger member out of the path of the draft pins when the overcenter toggle means and connected latch means are moved to their release positions by the control member.

Claim 8

A quick hitch device for coupling the draft links of a tractor with an implement having spaced draft pins adapted to be connected to the hitch, comprising in combination, a frame member having a pair of spaced hook members adapted to receive the implement spaced draft pins, a pair of latch means pivoted on said frame and movable between a first locking position where a draft pin contained in each hook member is prevented by the lower edge of said latch means from leaving the hook and a second release position wherein the pin may be released from the hook, overcenter toggle means carried by the frame and connected to each of said latch means, said overcenter means including biasing means urging the overcenter means to a first normal position holding said latch in its locking position, a trigger pivoted on said frame independently from said latch and positioned to be engaged by the draft pins only above said latch means lower edge, said trigger operable when moved by said pins to engage said overcenter means to move it against the biasing means to a second position permitting said latch to be moved to its second release position allowing entry of draft pins into the hook, and a control member connected to the overcenter means and manually operable to move the same to release position to enable release of the draft pin from the hook.

Claim 9

A quick hitch device for coupling the draft links of a tractor with an implement having spaced draft pins adapted to be connected to the hitch, comprising in combination, a frame member having a pair of spaced hook members adapted to receive the implement spaced draft pins, a pair of latch means pivoted on said frame and movable between a first locking position where a draft pin contained in each hook member is prevented by the lower edge of said latch means from leaving the hook and a second release position wherein the pin may be released from the hook, overcenter toggle means carried by the frame and connected to each of said latch means, said overcenter means including biasing means urging the overcenter means to a first normal position holding said latch in its locking position, a trigger pivoted on said frame independently from said latch and positioned to be engaged by the draft pins only above said latch means lower edge, said trigger operable when moved by said pins to engage said overcenter means to move it against the biasing means to a second position permitting said latch to be moved to its second release position allowing entry of draft pins into the hook, and a control member connected to the overcenter means and manually operable to move the same to release position to enable release of the draft pin from the hook.