| 摘要 |
PURPOSE:To speedily remove snow and ice by constituting a front glass from a jointed glass unit in which a space part for the circulation of hot air is formed and supplying hot air into the space part from a hot air inlet and discharging the hot air from an outlet. CONSTITUTION:A front glass is formed by superposing a glass 1 in the forefront part, resin film 2 attached onto the back surface of the glass 1, and a glass 1' superposed by arranging a packing 3 onto the peripheral edge part, so that a sealed space part 0 is formed between the resin film 2 and the glass 1'. A hot air inlet 4 and outlet 5 which are opened into the space part 0 are formed on the back surface of the front glass. In snow fall, ice freezing, or frost formation, the hot air warmed by a heater unit is introduced into the hot air inlet 4 and blown into the space part 0, in order to heat the front glass, and then said air is discharged from the hot air outlet 5. Therefore, the snow, ice, or frost on the surface of the front glass can be removed speedily.
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