Windshield
摘要
說明書
The configurations of the heating wire in the embodiments are merely examples, and can have various aspects. That is, the wiring shape and length of the heating wire can be set as appropriate, and the relationship with the opening 43 in the blocking layer 4 can be set as appropriate, and the shapes of the opening in the blocking layer 4 described in the embodiments and the configurations of the heating wire 8 can be combined as appropriate.
Although there is no particular limitation on the number of heating wires (corresponding to the main body portions according to the present invention) that pass through the opening 43, in order to prevent the opening portion from fogging up, the number of heating wires is preferably 3 to 50, for example. This is because, if the number of heating wires 8 passing through the opening 43 is one, for example, fog cannot be sufficiently removed. Also, in order to sufficiently remove fog using one heating wire 8, the temperature of the heating wire 8 needs to be increased. However, an increase in the temperature of the heating wire 8 may cause the glass plate to crack. Therefore, it is preferable to set the number of heating wires passing through the opening 43 as described above. From a similar viewpoint, the total area of the heating wire passing through the opening 43 is preferably 2500 mm2 or more.
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