| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a liquid supply needle of a liquid jet device capable of preventing a liquid from leaking from the liquid supply needle by closing a liquid channel in the liquid supply needle when a liquid vessel is pulled out from the liquid supply needle. SOLUTION: In the structure of the liquid supply needle of the liquid jet device, the liquid supply needle 23 comprises a pipe like needle body 35 to be relatively inserted into liquid reservoir sections 6, 61, 73, valve bodies 37, 39 for closing the liquid channel in the needle body 35 which is retractably inserted into the needle body and is placed on a valve sheet face 38 provided to a part of the inner face of the needle body 35, an urging means 48 for urging the valve body in the closing direction, and a movement member 41 which is projected to the outside of the needle body 35 by being integrated with the valve bodies 37, 39 and is adapted to open the valve body along with the relative movement of insertion of the needle body 35 into the liquid reservoir sections 6, 61, 73. As a result of the above structure, the valve bodies 37, 39 are closed in the needle body 35 to prevent a liquid from leaking. COPYRIGHT: (C)2006,JPO&NCIPI |
