Patent ID: 8656519

Claim:
A position control mechanism for a full-faced and open-faced helmet, comprising: a helmet body being provided with at least a hollow, said hollow being disposed in each pivotal ear portion of said helmet body, and at least a screw hole being disposed in each said hollow; at least a pair of control units, each said control unit being provided with at least an adjusting element; at least a chin guard, at least an inward hollow being disposed at each pivotal ear portion of said chin guard, at least a fixing unit being pivotally provided in each said inward hollow, at least a guide hole being disposed in each said inward hollow, and at least a screw hole being disposed at one side of each said inward hollow; and, at least a visor plate being provided with a pivotal ear portion formed at each side of said visor plate, a through hole being disposed in each said pivotal ear portion, each said through hole being disposed for a fixing article to be inlaid in, and at least a guide rod being disposed at one side of each said through hole of said visor plate; wherein at least an upper sliding groove and at least a lower sliding groove are disposed in each said control unit, and at least a flange is disposed in each said upper sliding groove.