Shield fixing structure in helmet

A shield fixing structure for attaching a shield to a helmet, the structure comprising:

• a helmet;
• a shield;
• two shield fixing components, each of said shield fixing components comprising:
• a male engagement member capable of being connected to the helmet, said male engagement member having a stopper for restricting movement of said shield;
• a female engagement member movably connected to the male member, said female engagement member having a fixing part for attaching said female engagement member with said shield;
• and
• a passing notch for opposing said stopper when said shield is rotated to an open position, and for passing over said stopper when said shield is rotated to a position wherein it can be removed from said helmet,
• wherein said shield fixing components are located on opposite sides of said helmet and attache said shield to said helmet.

A shield fixing structure to be installed at a front surface of a main body of a helmet, said shield fixing structure in which only when engagement protuberances are contacted with stoppers at the full-opened upper limit position of the shield and the engagement protuberances ride over the stoppers, guide pieces of hubs installed at fixing parts of the shield are released in their engagement with the engagement steps formed in hub supporting notches of the engagement male members arranged at right and left sides of the helmet and can be removed from the inlet formed at the notch for fitting or removing the guide pieces characterized in that:

• the engagement protuberances are formed with passing notches having a size as one in which the stoppers can pass, the stoppers are integrally engaged with the engagement male members slidably and biased in such a direction as one in which they are always removed from the notches such that they are coincided with and removed from the passing notches;
• the stoppers are held by the holding parts holding the positions coinciding with the passing notches above the full-opened upper limit position of the shield through operation of the operating part to be slid against the biasing force at the full-opened upper limit position of the shield, the engagement with the engagement protuberances is released to enable the shield to be turned upward from the full-opened upper limit position to the releasing enabled position and in turn when the shield is turned up to the releasing enabled position and removed from it and when the shield is lowered form the ful-opened upper limit position as it is without being turned up to the releasing enabled position, the stoppers are released from the holding parts and returned back to an initial state by said biasing force.