Patent ID: 6220062
Filing Date: 2001-04-24
Classification: D04B

Abstract:
A needle selector for knitting machines comprising a finger actuating device, in which a plurality of piezoelectric bodies are arranged so that planar surfaces of the piezoelectric bodies overlap one another at prescribed intervals, each of the piezoelectric bodies being movably supported at a tip, in a middle and at a rear end thereof, the piezoelectric bodies being caused to bend by application of electric power and thereby to swing finger members arranged at the tips of the piezoelectric bodies, and power supply means for applying electric power to the finger actuating device, wherein:said power supply means includes bar-shaped electrodes each having at least two conductive parts with an insulating part in-between and a slit into which the rear end of one of said piezoelectric bodies can be fitted, anda mechanism for selectively supplying electric power to at least two conductive parts of each of the bar-shaped electrodes,the rear ends of said piezoelectric bodies being inserted into the slits of said bar-shaped electrodes to achieve electrical connection so that the electric power is applied to each of the piezoelectric bodies via the conductive parts of each of the bar-shaped electrodes.