| 摘要 |
The replacement seat consists of a rigid double-walled shell shaped to form a back (2) and a hinged base (6), the latter having a hole (5) with an opening lid (3). The seat has a soft covering of an elastic and compressible material such as an elastomer, and its inner cavity has orifices for circulating air, connected via a tube (9) to a warm air supply unit (7). The seat back has an aperture (11) to receive the raised lid, and in a variant designed for public use the seat base can be counterweighted to raise it when not in use. Also claimed is a variant containing electrical resistances to heat the seat instead of warm air.
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