Snowplow with positive rake angle cutting blade and ice scraper

Abstract

A snowplow is presented and comprises a frame configured to be attached to a vehicle with a vehicle attachment for pushing the snowplow in a longitudinal direction, a main blade connected to a forward portion of the frame, the main blade including radius of curvature and at least one cutting blade disposed at a bottom portion of the main blade in a ground-contacting configuration disposed in a positive rake angle in substantial continuity with the radius of curvature of the main blade, the at least one cutting blade being pivotable about a pivot axis, wherein the pivot axis is located in front the main blade in an horizontal and transversal direction

What is claimed is: 
     
         1 ) A snowplow comprising:
 a frame configured to be attached to a vehicle with a vehicle attachment for pushing the snowplow in a longitudinal direction;   a main blade connected to a forward portion of the frame, the main blade including a radius of curvature; and   at least one cutting blade disposed at a bottom portion of the main blade in a ground-contacting configuration disposed in a positive rake angle in substantial continuity with the radius of curvature of the main blade, the at least one cutting blade being pivotable about a pivot axis, wherein the pivot axis is located in front the main blade in an horizontal and transversal direction.   
     
     
         2 ) The snowplow of  claim 1 , wherein the pivot axis is located vertically above the at least one cutting blade. 
     
     
         3 ) The snowplow of  claim 2 , wherein the pivot axis is vertically located above a ground-contacting portion of the at least one cutting blade. 
     
     
         4 ) The snowplow of  claim 1 , wherein a ground-contacting portion of the at least one cutting blade is located at an angle of about between 60-degree and 80-degree with the ground when the snowplow is in an operating configuration. 
     
     
         5 ) The snowplow of  claim 1 , wherein the at least one cutting blade is operatively connected to a biasing member biasing the at least one cutting blade in a forward direction thereof. 
     
     
         6 ) The snowplow of  claim 5 , wherein the biasing member is a spring. 
     
     
         7 ) The snowplow of  claim 5 , wherein the biasing member includes an axis thereof disposed in an inclined position. 
     
     
         8 ) The snowplow of  claim 7 , wherein the axis of the biasing member is in a direction substantially virtually intersecting a ground-contacting portion of the at least one cutting blade. 
     
     
         9 ) The snowplow of  claim 1 , wherein the at least one cutting blade is a plurality of cutting blades. 
     
     
         10 ) The snowplow of  claim 9 , wherein the plurality of cutting blades includes a substantially similar transversal length. 
     
     
         11 ) The snowplow of  claim 1 , further comprising a pair of lateral scoops pivotable between a front-facing configuration and a rear-facing configuration. 
     
     
         12 ) The snowplow of  claim 11 , wherein each of the pair of lateral scoops comprises a ground contacting piece attached thereto, the ground-contacting piece being adapted to pivot in respect with a first part of the lateral scoop. 
     
     
         13 ) The snowplow of  claim 1 , further comprising an ice scraper connected to the frame behind the main blade. 
     
     
         14 ) The snowplow of  claim 13 , wherein the ice scraper includes a plurality of longitudinally offset ice-scraping portions. 
     
     
         15 ) The snowplow of  claim 14 , wherein the ice scraper includes a plurality of longitudinally offset ice-scraping portions includes two lateral ice-scraper portions located in a position allowing rearward interference-free pivotal motion of the pair of lateral scoops.