| 摘要 |
PROBLEM TO BE SOLVED: To exactly detect a teat position, to speedily and surely mount a teat cup and further, to attain remarkable cost down. SOLUTION: A U-shaped sensor frame 3, where a teat H is put in, is provided while being arranged above a teat cup T and, on this sensor frame 3, plural sets of transmissive photosensors 4a (4b, 4c...) composed of a pair of light emitting parts 5a (5b, 5c...) and light receiving parts 6a (6b, 6c...) are arranged so that matrix-shaped optical paths Ea, Eb, Ec... can be formed in a space S inside the sensor frame 3. This device is provided with a main detection part 2 for detecting the position of the teat H put into the sensor frame 3 and an auxiliary detection part 7 for detecting the position of the teat H by repeatedly turning and displacing a reflection type photosensor 8, which is arranged near the sensor frame 3, over a prescribed angle range. |
