| 摘要 |
The present device relates to a ventilation mechanism that is to be disposed in shoes such as boots so as to circulate air inside and outside the shoes, and, more particularly, to a ventilation mechanism having an automatic waterproofing function so as to become waterproof only when the ventilation mechanism is immersed in water. The present device includes: a ventilation means that is disposed so as to be directed toward the top of one side of a shoe; a ventilation guide means that is disposed on an upper end of the ventilation means in order to guide the air inside and outside the shoe such that it flows along a surface of the ventilation means; and a buoyancy means that is freely movable in the vertical direction between the ventilation means and the ventilation guide means. According to the present device, the buoyancy means falls from a ventilation guide hole that is formed in a guide body of the ventilation guide means when the ventilation means is not immersed in water. As such, circulation and ventilation inside and outside the shoe can be freely performed in an environment in which water outside the shoe cannot penetrate the shoe. |
