Patent ID: 8032946

Claim:
A shield structure for a helmet or goggles, comprising a main shield and left and right auxiliary shield mounting mechanisms which are disposed on said main shield, at least one auxiliary shield mounting mechanism of said left and right auxiliary shield mounting mechanisms comprising an auxiliary shield holding member including an engaging shaft to relatively engage with one of an engaging notched recess and an engaging hole of an auxiliary shield and a removal preventive portion to prevent removal of said engaging shaft from one of the engaging notched recess and the engaging hole, wherein: said auxiliary shield holding member comprises a second recess-projection engaging portion capable of engaging, by recess-projection engagement, with a first recess-projection engaging portion which is stationary with respect to said main shield, said auxiliary shield holding member is pivotal with respect to said main shield, said engaging shaft comprises an engaging eccentric shaft eccentric from a pivot center of said auxiliary shield holding member, and when said auxiliary shield holding member is moved forward in a direction substantially along the pivot center thereof, said second recess-projection engaging portion disengages from the first recess-projection engaging portion.