Frishauf, Holtz, Goodman & Woodward
Screw inspection device
 A screw inspection device of the invention has a screw transfer mechanism for transferring a screw through a predetermined transfer path, a sensor for performing predetermined measurements of the screw during transfer thereof, a timing signal transmitter for generating a timing signal every time the screw reaches the sensor, a comparator for generating an acceptance/non-acceptance signal representing the measurement results from the sensor every time the timing signal is received, a sorting signal generator for generating a sorting signal corresponding to the acceptance/non-acceptance signal when the corresponding screw reaches the end of the transfer path, and a sorter for classifying the screws into defective and nondefective screws. 
NHK Spring Co., Ltd.
G B
G01N B07C
inventional inventional
Michio Hidekazu Hayao
Kato Hoshino Takahashi