Snow plow rotating sidewall with suspension

Abstract

A snow plow blade assembly has sidewalls rotating when abutting an obstacle and returning to the default position when not abutting the obstacle anymore. The snow plow blade assembly comprises a central section comprising a pivot axis; sidewall assemblies pivotably mounted to the central section; and suspension assemblies mounted to the central section. The suspension assemblies connect the central section and the sidewall assembly distant from the pivot axis. The suspension assemblies may comprise a hydraulic jack controllable between an extended position and a compact position, wherein the suspension assemblies allows the sidewall assemblies to pivot up to a first angle when contacting an obstacle and to pivot to a second angle greater than the first angle by changing the position of the hydraulic jack.

1 . A snow plow blade assembly comprising:
 a central section comprising a pivot axis;   a sidewall assembly pivotably mounted to the central section and pivotable about the pivot axis; and   a suspension assembly mounted to the central section,   wherein the suspension assembly connects the central section and the sidewall assembly distant from the pivot axis.   
     
     
         2 . The snow plow blade assembly of  claim 1 , wherein the central section comprises a top edge, and wherein the suspension assembly is mounted to the top edge. 
     
     
         3 . The snow plow blade assembly of  claim 1 , further comprising a link member comprising two pivot mounting members distant from each other, wherein the two pivot mounting members are mounted respectively to the sidewall assembly and the suspension assembly. 
     
     
         4 . The snow plow blade assembly of  claim 3 , wherein the suspension assembly comprises:
 a rotative damper; and   an arm mounted to the rotative damper;   wherein one of the two pivot mounting members is connected to the arm.   
     
     
         5 . The snow plow blade assembly of  claim 3 , wherein the link member comprises a hydraulic jack. 
     
     
         6 . The snow plow blade assembly of  claim 5 , wherein the sidewall assembly is controllably pivotable between a pull position and a push position through control of the hydraulic jack between an extended position and a compact position. 
     
     
         7 . The snow plow blade assembly of  claim 1 , wherein the suspension assembly comprises a rotative damper. 
     
     
         8 . The snow plow blade assembly of  claim 7 , wherein the rotative damper comprises a deformable rubber-based component. 
     
     
         9 . The snow plow blade assembly of  claim 1 , wherein the central section and the sidewall assembly further comprise complementary components limiting pivoting of the sidewall assembly relative to the central section. 
     
     
         10 . The snow plow blade assembly of  claim 9 , wherein the complementary components comprise a slot and a lug which is travels in the slot. 
     
     
         11 . The snow plow blade assembly of  claim 1 , wherein the sidewall assembly comprises two sidewall assemblies, wherein each of the two sidewall assemblies pivot independently from each other. 
     
     
         12 . A snow plow blade assembly to be mounted to a vehicle, comprising:
 a central section to be mounted to the vehicle, the central section comprising a pivot axis;   a sidewall assembly pivotably mounted to the pivot axis; and   a suspension assembly connecting the central section with the sidewall assembly distant from the pivot axis, comprising a link member comprising two pivot mounting members distant from each other mounted respectively to the sidewall assembly and the suspension assembly.   
     
     
         13 . The snow plow blade assembly of  claim 12 , wherein the suspension assembly comprises:
 a rotative damper; and   an arm mounted to the rotative damper;   wherein one of the two pivot mounting members is connected to the arm.   
     
     
         14 . The snow plow blade assembly of  claim 13 , wherein the rotative damper comprises a deformable rubber-based component. 
     
     
         15 . The snow plow blade assembly of  claim 13 , wherein the rotative damper is mounted to the central section. 
     
     
         16 . The snow plow blade assembly of  claim 12 , wherein the link member comprises a hydraulic jack. 
     
     
         17 . The snow plow blade assembly of  claim 16 , wherein the sidewall assembly is controllably pivotable between a pulling position and a pushing position through control of the hydraulic jack between an extended position and a compact position. 
     
     
         18 . A snow plow blade assembly to be mounted to a vehicle, comprising:
 a central section to be mounted to the vehicle;   a sidewall assembly pivotably mounted to the central section; and   a suspension assembly connecting the central section to the sidewall assembly comprising a hydraulic jack which is controllable between an extended position and a compact position,   wherein the suspension assembly allows the sidewall assembly to pivot up to a first limit angle when contacting an obstacle and to pivot to a second limit angle greater than the first limit angle when changing position of the hydraulic jack.   
     
     
         19 . The snow plow blade assembly of  claim 18 , wherein the suspension assembly comprises:
 a rotative damper; and   an arm mounted to the rotative damper;   wherein the hydraulic jack is connected to the arm.   
     
     
         20 . The snow plow blade assembly of  claim 18 , wherein the sidewall assembly comprises two sidewall assemblies, wherein each of the two sidewall assemblies is pivotable up to the first limit angle independently from each other.