| 摘要 |
PROBLEM TO BE SOLVED: To surely detect by a simple and inexpensive configuration that a washing nozzle is pulled and removed from a container and located at a descending position.SOLUTION: Washing nozzles 70, 80 are provided with fixed pipes 71, 81 which are connected to a high pressure source 91, and moving pipes 72, 82 which move along the axial direction of the fixed pipes 71, 81. The moving pipes 72, 82 move with respect to the fixed pipes 71, 81 to be inserted into containers C. A washing liquid is injected from spout holes of the moving pipes 72, 82 to wash the insides of the containers C. A detection circuit includes detection holes 77, 87 formed in stoppers 75, 85. The detection holes 77, 87 are connected to a pressure source 96. Closing members 73, 83 are installed on the moving pipes 72, 82 and move together with the moving pipes 72, 82 to close the detection holes 77, 87. A pressure sensor 97 detects positions of the moving pipes 72, 82 by detecting pressure in the detection circuit. |
