Position controlling mechanism for chin guard and visor plate of helmet

Abstract

The position controlling mechanism is provided to be pivotally mounted on a side of a full-faced helmet for adjusting the positions of a chin guard and a visor plate of the helmet. The position controlling mechanism includes at least a chin guard, at least a spring, at least a rotor, at least a visor plate, at least an interaction gear, at least a transmission gear, at least a rotative element, at least an elastic ring and at least a visor plate base. After the position controlling mechanism being assembled, the rotor is capable of being rotated to transmit rotation to a gear chain, so as for the chin guard and the visor plate to be moved between activated and retracted positions.

1 . A position controlling mechanism for a chin guard and a visor plate of a helmet, comprising :
 at least a chin guard; at least a spring;   at least a rotor, said rotor being formed with at least two distal sawtoothed portions, a sliding hollow, a fixing article and a pivotal hole;   at least a visor plate; at least an interaction gear;   at least a transmission gear;   at least a rotative element, said rotative element being formed with at least a sawtoothed section, at least one engaging flange on the outer periphery;   at least an elastic ring; and,   at least a visor plate base;   wherein said rotor is rotated to transmit rotation to a gear chain of said interaction gear, said transmission gear and said rotative element, so as for said chin guard and said visor plate to be moved between activated and retracted positions.   
     
     
         2 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said chin guard is provided with at least a sliding path, at least a pair of opposite sliding blocks, at least a sliding groove formed in each said sliding block, and at least a fixing article. 
     
     
         3 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said spring is disposed in said sliding hollow of said rotor. 
     
     
         4 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said visor plate is provided with at least a sawtoothed engaging block, at least a hook portion and at least a sleeve hole, and said visor plate is pivotally placed between said rotor and said rotative element. 
     
     
         5 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said interaction gear is pivotally disposed on said visor plate base, and a pivotl hole is formed in the center of said interaction gear. 
     
     
         6 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said transmission gear is pivotally disposed on said visor plate base and engaged with said interaction gear and said sawtoothed section of said rotative element. 
     
     
         7 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said visor plate base is provided with a pivotal block at the center, a pivotal hole is formed in said pivotal block, and a guiding post is disposed on said visor plate base. 
     
     
         8 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein at least a sleeve hole is formed in said rotative element. 
     
     
         9 . The position controlling mechanism for a chin guard and a visor plate of a helmet according to  claim 1 , wherein said elastic ring is dosposed in the rotative element.