JP2005068582A5 - - Google Patents

Claims (10)

A plurality of front and rear vent holes provided at the front and rear of the top of the helmet having a cushioning material on the inner surface of the cap, and penetrating the cap and the cushioning material;
An opening and closing mechanism for simultaneously opening and closing the plurality of front and rear vents,
The opening / closing mechanism is housed in a groove formed on a side of the cushioning material facing the cap body and moves so as to contact the inside of the cap body, thereby simultaneously opening the plurality of front and rear vent holes. It consists of a slide plate that opens and closes, and a guide portion that supports the slide plate,
The plurality of front and rear vents are formed in the groove,
The slide plate is provided with an operation unit for moving the slide plate by operating from the outside of the cap body,
On the side facing the inside of the cap body of the cushioning material, there is a guide water channel toward the lower end of the cushioning material communicating with the lowermost front and rear lower ends of the groove portions formed in the cushioning material. A helmet formed in communication with the groove.   The slide plate is formed of an elastic material, and the width of the slide plate is narrow at a portion other than the portions that contact the plurality of front and rear vents. The helmet according to claim 1, wherein a strain absorbing portion is formed in a direction orthogonal to a direction in which the slide plate moves.   The slide plate abuts on the plurality of front vents of the cap body and moves on the arc, and the upper and lower ends of the plurality of front vents are respectively straight lines drawn from the center point of the arc. 3. The helmet according to claim 1, wherein an opening area ratio of the plurality of front-side vent holes is equally changed with the movement of the slide plate. The slide plate is convex portion and fitting formed on the cap body, any claim 1-3, characterized in that the spring mechanism for locking the slide plate in the cap body is formed helmet according to any.   The operation portion is formed with a locking portion that engages with a convex portion provided around a through-hole formed in the cap body and locks the operation portion to the cap body. The helmet according to claim 1.   In the groove portion, the lower end portions of the front portion and the rear portion of the cushioning material are formed so as to be inclined toward both sides from the center portion of the cap body so that water in the groove portion easily flows out. The helmet according to claim 1.   A plurality of front side vent holes penetrating the cap body and the cushioning material are formed in the lateral direction on the front surface of the cap body and the cushioning material, and a plurality of rear side vent holes are formed in the vertical direction above the rear part. The helmet according to claim 1, wherein the slide plate is formed so as not to protrude from the cap body when the slide plate is moved.   The periphery of the plurality of front and / or rear vents formed in the groove is surrounded by a convex wall, and the bottom of the groove along the moving direction of the slide plate The helmet according to claim 1, wherein the helmet has an inclined surface that becomes lower.   Around the front and / or rear vents formed in the cap body, the height decreases as the slide plate moves away from the front and / or rear vents. The helmet according to claim 1, wherein an inclined surface is formed.   A protrusion is formed at the lower end of the groove formed on the side of the cushioning material facing the cap body, and a gap is formed between the protrusion and the lower end of the slide plate. The helmet according to claim 1.