Trip edge snow plow blade

Abstract

An improved snow plow blade is disclosed which has a fixed upper plow blade and a pivoting lower trip blade mounted on the swing frame of the snow plow with the axis of rotation of the trip blade being directly in line with the swing frame and the support frame of the snow plow. Since the axis of rotation of the trip edge blade is located at the height of the vertical center of the swing frame (and is thereby in the same horizontal plane), the forces imparted to the swing frame will be essentially compressive in nature rather than including a torsional element as well. The trip edge blade andthe trip edge springs used to bias the trip edge blade into an untripped position are substantially supported by the swing frame of the snow plow rather than being supported from the upper plow blade.The trip edge blade is also sufficiently high to prevent damage to the upper snow plow blade due to impacts with curbs or other high obstacles.

Description

technical field [0001] The present invention relates generally to a snow plow for use with light and medium duty trucks, and more particularly to an improved snow plow balde having a fixed upper coulter and a pivoting lower engaging blade (trip blade), the joint knife is mounted on the swing frame of the snow plow, the pivot axis of the joint knife is directly consistent with the swing frame and the support frame of the snow plow. Background technique [0002] Snow plows have been used for decades with light and medium-duty trucks in addition to heavy-duty trucks for urban work. As is to be expected in any technological field presented in that time period, snow plows for light and medium trucks have been greatly improved in a variety of ways in that time to increase the effectiveness of snow plows and improve their use. their convenience. Manufacturers of snow plows for light and medium duty trucks are highly competitive, with manufacturers competing to differentiate snow ...

AI Technical Summary

Problems solved by technology

[0013] Third, most of the currently known joint edge snow plows are very susceptible to damage caused by striking snow-covered kerbstones, which cannot be seen by the driver of the truck on which the snow plow is mounted.

Since most curbstones are formed at a standard height of 6 inches (15.24 cm), those of ordinary skill in the art immediately know that if a snow plow with such a shorter joint edge knife hits a curbstone, the joint The edge knives are tripped and the bottom of the upper knives also hit the curb stone, potentially causing greater damage to the snow plow blades

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