| 摘要 |
<p>A kitchen machine, such as a food processor, that employs a bladed member comprising a blade-carrying disc 12 rotated just beneath the lid of a processing bowl, has a vibratory element, such as a piezoelectric device, mounted on the disc, or on the blade itself, and driven by a voltage waveform that causes the element to vibrate whilst the disc is in rotation. The waveform may be generated within a base unit of the food processor and supplied to the vibratory element by way of slip rings 20, 22 which may be exposed on the disc and contacted by brushes 26, 28 mounted under the lid, or concealed within a drive shaft used to convey the rotational drive to the disc from a motor housed in the base unit. The vibrations, superimposed on the conventional mechanical rotation of the bladed member, improve the cutting action of the blade and thus reduce the amount of energy needed to drive the blade through foodstuffs.</p> |
