ventilation device having an automatic waterproof function

摘要

the present invention, the installation has been in the footwear / outside air to footwear such as boots is circulated respect ventilation equipment to make, and more particularly to ventilation that ventilation equipment is related to the ventilation device having an automatic water-proof function of only the waterproofing is effected when immersed in water, it is placed towards the top on one side of the footwear a means is installed in the upper end of the ventilation means, the vertical direction between the ventilation guide means, and the ventilation means and the ventilation guide means for the air of the footwear in / outside is induced to flow along the surface of the ventilation means It features a free and buoyancy means movable, in that it has been configured to. According to thus constituted the present invention, in a state where the ventilation means not immersed in water, and by the buoyant means away from the wind guide holes formed in the induction body of draft induction means, footwear external water footwear interior In an environment that can not be flowed to the effect of circulating ventilation of the footwear in / outside is freely performed.