초록 ▼

A distribution head 14 is provided with nozzles 17. A tip holder 5 is placed on a platform 53 which is supported on a rod 52 of a cylinder 51. The tip holder 5 holds a number of distribution tips 15 upright. The nozzles 17 are fitted to the top portion of the distribution tips 15 by lowering the dis

A distribution head 14 is provided with nozzles 17. A tip holder 5 is placed on a platform 53 which is supported on a rod 52 of a cylinder 51. The tip holder 5 holds a number of distribution tips 15 upright. The nozzles 17 are fitted to the top portion of the distribution tips 15 by lowering the distribution head 14. As the platform 53 is elastically supported on the rod 52 of cylinder 51 so that it can move slightly up and down, the distribution tips 15 may be surely fitted to the nozzles 17 without suffering from damage. Air pressure given to the cylinder 51 is adjusted in accordance with the total number of tips 15, or other factors.

대표청구항 ▼

1. An automatic distribution apparatus comprising:a distribution head having a plurality of nozzles designed to be detachably provided at respective bottom ends with tips for sucking liquid samples; a tip exchange stage on which a tip holder for holding a plurality of unused tips upright is placed;

1. An automatic distribution apparatus comprising:a distribution head having a plurality of nozzles designed to be detachably provided at respective bottom ends with tips for sucking liquid samples; a tip exchange stage on which a tip holder for holding a plurality of unused tips upright is placed; and a moving device for moving said distribution head up and down relative to the tip holder placed on said tip exchange stage so that the bottom ends of said nozzles are inserted in the tips held on the tip holder, wherein said tip exchange stage is equipped with a platform for holding said tip holder, an air cylinder for thrusting the platform upward, and a pressure regulator for controlling a thrusting force of the air cylinder by regulating pressure of air in said air cylinder.