| 摘要 |
PROBLEM TO BE SOLVED: To obtain high attaching accuracy for the vertically shifting spottedly sticking nozzle of a spottedly sticking device for biochemical analyzer with a simple constitution and, at the same time, to efficiently give a fitting force to a nozzle tip at the time of fitting the tip to the nozzle by inserting the tip into the nozzle. SOLUTION: An elevating/lowering mechanism 7 which elevates/lowers the spottedly sticking nozzle 45 used for sucking and discharging specimens through the nozzle chip 14 fitted to the front end of the nozzle 45 for performing spottedly sticking operation and fitting the chip 14 to the nozzle 45 is provided with a guide rail 43 laid in the moving direction of the nozzle 45, a nozzle fixing base 44 which can slide along the rail 43 and to which the nozzle 45 is fixed, and a drive transmitting member 47 which is driven by means of a driving member 50. The mechanism 7 is also provided with a connecting member 46 which connects the member 47 to the base 44 in a state where the member 47 can be moved to and from the base 44 and an elastic member 48 which is interposed between the member 47 and base 44 and gives the fitting force to the chip 14 when the member 48 is deformed. |
