JPS6189210U - - Google Patents

Description

[Brief explanation of the drawing]

The figures show one embodiment of this invention; Fig. 1 is a side view, Fig. 2 is a partially enlarged rear view, and Fig. 3 is a partially enlarged rear view.
The figure is a perspective view of the coupler portion. In the figure, 1 is an agricultural tractor, 2 and 2 are lower links, 3 is a mounting bracket, 4 is a top link, and 5
indicates the working machine (tillage rotary), 6 indicates the coupler on the working machine side, and 7 indicates the coupler on the main machine side.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lower link is pivotally connected to the rear of an agricultural tractor so that it can move up and down freely, and can be fixed at the rear or can be released so as to move up and down around the center of the pivot as appropriate. The top link is pivotally connected to the mounting bracket, and the machine-side couplers that are to be engaged and disconnected from the work machine-side couplers are attached to the ends of both links. A work coupling device for agricultural tractors, etc., which is configured to rotate. (2) Practical use where the moment around the pivot joint on the lower link side of the coupler on the machine side acts to balance the rotatable mounting bracket and the top link in a substantially straight line on the lower link side where there are few lower links. A working machine coupling device for an agricultural tractor or the like as set forth in claim 1 of the patent registration claim. (3) A working machine coupling device for an agricultural tractor or the like as set forth in claim 1 of the utility model registration claim, which elastically maintains a mounting bracket and a top link in a substantially straight line.