Device reducing wind noise

Abstract

When a person is riding an open-top vehicle with his ears exposed, he hears the whistling sounds of the apparent headwind produced as the wind dashes against his earlobes. According to the present invention, windshields A ( 1 ) are disposed forward of the rider's ears and sound insulating plates ( 2 ) are disposed between the windshields A ( 1 ) and the ear holes ( 5 ). Blocked by the windshields A ( 1 ), the apparent headwind does not strike the earlobes ( 4 ), thereby eliminating the whistling sounds from winds. As an adverse effect, the wind strikes and vibrates the windshields A ( 1 ), thus producing different noise. This noise does not reach the ear holes ( 5 ) of the rider as it is blocked by the sound insulating plates ( 2 ). As such, all the noise caused by the wind is reduced. Since the ears are mostly exposed to the open air, sufficient heat dissipation can be obtained without attenuating the surrounding sounds. Windshields B ( 25 ) are disposed forward of the windshields A ( 1 ) as required. This permits size reduction and simplification of the windshields A ( 1 ) and the sound insulating plates ( 2 ).

1 . An apparatus for reducing the whistling sounds from winds, characterized by comprising windshields A ( 1 ) and sound insulating plates ( 2 ) secured in the vicinity of the ears of a person who receives a steady apparent headwind on the earlobes, at least one windshield A ( 1 ) and at least one sound insulating plate ( 2 ) being provided on each of right and left sides, wherein the windshields A ( 1 ) provide cover forward of the person's earlobes ( 4 ) or from the front and extending to the sides thereof, the sound insulating plates ( 2 ) are located between the ear holes ( 5 ) and the windshields A ( 1 ), and the windshields A ( 1 ) and the sound insulating plates ( 2 ) do not come into contact with the person's earlobes ( 4 ) with the person's earlobes ( 4 ) visible from behind during use. 
   
   
       2 . An apparatus for reducing the whistling sounds from winds in accordance with the foregoing claim, characterized in that each windshield A ( 1 ) and one sound insulating plate ( 2 ) are made as a single, continuous element with a front portion ( 16 ) thereof serving as a windshield and a rear portion ( 17 ) thereof serving as a sound insulating plate. 
   
   
       3 . An apparatus for reducing the whistling sounds from winds in accordance with  claim 1  or  2 , characterized in that windshields B ( 25 ) are disposed forward of the windshields A ( 1 ), wherein the foremost portions of the front edges of the windshields B ( 25 ) are located at least five centimeters forward of the centers of the ear holes ( 5 ). 
   
   
       4 . An apparatus for reducing the whistling sounds from winds in accordance with  claim 3 , characterized in that either or both of the windshields A ( 1 ) and the sound insulating plates ( 2 ) are omitted from the apparatus. 
   
   
       5 . An apparatus for reducing the whistling sounds from winds in accordance with  claim 3 , characterized in that the windshields A ( 1 ) and the sound insulating plates ( 25 ) are replaced with integrated windshields ( 35 ). 
   
   
       6 . An apparatus for reducing the whistling sounds from winds in accordance with  claim 5 , characterized in that the sound insulating plates ( 2 ) are omitted from the apparatus. 
   
   
       7 . An apparatus for reducing the whistling sounds from winds characterized in that windshields C are provided in a helmet ( 3 ) with a chinstrap of thickness of at least two centimeters, wherein the windshields C are disposed forward of the chinstrap, wherein the foremost portions of the front edges of the windshields C are located at least five centimeters forward of the centers of the ear holes ( 5 ), and the lines defined by the front edges are preferably inclined rearward toward their bottoms. 
   
   
       8 . An apparatus for reducing the whistling sounds from winds characterized in that windshields B ( 25 ) and sound insulating plates ( 2 ) are provided in a helmet ( 3 ) with a chinstrap of thickness of at least two centimeters. 
   
   
       9 . An apparatus for reducing the whistling sounds from winds in accordance with any one of  claims 1 - 8 , characterized in that part or all of the windshields and the sound insulating plates ( 2 ) are integrated in the helmet worn by a user. 
   
   
       10 . An apparatus for reducing the whistling sounds from winds characterized in that sound insulating plates ( 2 ) are provided in a helmet ( 3 ) with a chinstrap of thickness of at least two centimeters, or the sound insulating plates ( 2 ) are integrated with the helmet ( 3 ).