Visor attachment mechanism in helmet

摘要

In this invention, a visor is configured to be inserted into a slit of a movable plate. One of an engaging projecting portion and an engaging concave portion is provided on the visor, and the other is provided on the movable plate. When the visor pivots in a first direction about the engaging projecting portion, a concave corner portion of the visor comes into contact with a first position regulating portion of the movable plate, thereby impeding the pivotal movement of the visor. When the visor pivots in a second direction, the outer wall surface of the visor comes into contact with wall portions of the movable plate, thereby impeding the pivotal movement of the visor.

主权项

1. A visor attachment mechanism in a helmet, wherein the helmet comprises:
a head protecting body having a window opening formed in a front surface; and a visor attached to said head protecting body to be movable forward and backward with respect to said head protecting body so as to at least partially open or at least partially close the window opening; the visor attachment mechanism comprising:
a movable plate attached to said head protecting body to be movable forward and backward so as to indirectly attach said visor to said head protecting body via said movable plate;a slit provided in said movable plate to extend substantially in a planar direction of said movable plate so as to receive a region including one of a left end and a right end of said visor and a vicinity thereof, wherein said movable plate further comprises, around said slit, an upper wall portion, a first side wall portion located on a side opposite to an insertion side of said visor to said slit, a lower wall portion, and a second side wall portion located on a lower end on the insertion side of said visor to said slit; andremoval preventing means for preventing the region including one of the left end and the right end of said visor and the vicinity thereof from being removed from said slit, wherein said removal preventing means comprises first removal preventing means and second removal preventing means,said first removal preventing means comprises:
an engaging projecting portion provided on one of said movable plate and the region including one of the left end and the right end of said visor and the vicinity thereof so as to project in a direction substantially perpendicular to the planar direction of one of said visor and said movable plate; andan engaging concave portion provided in one of said movable plate and the region including one of the left end and the right end of said visor and the vicinity thereof so as to engage with said engaging projecting portion when the region including one of the left end and the right end of said visor and the vicinity thereof is inserted into said slit; andsaid second removal preventing means comprises:
a removal preventing projecting portion is provided in the region including one of the left end and the right end and the vicinity thereof of said visor, said removal preventing projecting portion further comprising a concave corner portion, wherein said removal preventing projecting portion and said concave corner portion extend substantially in a planar direction of the visor substantially toward the downward direction in the region including one of the left end and the right end of said visor and the vicinity thereof;a first position regulating portion formed from an upper end and a vicinity thereof of said second side wall portion of said movable plate to come into contact with said concave corner portion and impede pivotal movement in a first direction out of the pivotal movement of said visor with respect to said movable plate about one of said engaging projecting portion and said engaging concave portion; anda second position regulating portion formed from at least one of said upper wall portion and said first side wall portion of said movable plate to come into contact with the region including one of the left end and the right end of said visor and the vicinity thereof and impede pivotal movement in a second direction out of the pivotal movement of said visor.