| 摘要 |
The manual gas tap for a cooking appliance is of the type with a conical plug ( 3 ) for regulating the outlet gas flow (G), accommodated in a central housing ( 2 a) in the tap body, and has a rotary actuating shaft ( 4 ) coupled to the conical regulating plug ( 3 ), and a tap cover ( 5 ) covering said central housing ( 2 a). The rotary shaft ( 4 ) is provided with a transverse pin ( 6 ) for rotation thereof from an initial rotation locking position ( 7 ) corresponding to the gas supply "OFF", to two other spaced positions corresponding to the maximum and minimum gas flows. The tap cover ( 5 ) is a tubular bushing shaped and comprises a sealing base ( 5 c) with a sliding surface ( 11 ) in the form of a circular arc segment (A) provided with a series of indentations ( 12 ), which are in friction contact with the transverse pin ( 6 ) and produce a tactile and/or acoustic indication of shaft ( 4 ) rotation and tap ( 1 ) opening.
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