| 摘要 |
A central layer (16) comprising a sheet of indestructible translucent plastics material is mounted between inner and outer layers (12, 14) both of glass, without any direct bonding therebetween. By means of spacers (18, 20), gaps may be provided between the central layer (16) and the respective inner and outer layers (12, 14) so as to provide a triple glazed unit with enhanced security. Alternatively, no gaps may be provided, the central layer (16) being directly sandwiched between the inner and outer layers (12, 14), in the cavity defined by the spacers, which are then disposed between the inner and outer layers (12, 14).
|
