| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary joint enabling a large space to be assured at a rear position of an advancing or retracting shaft and further enabling another device to be arranged there by enabling processing liquid to be supplied from a direction crossing at a right angle with an axis of the advancing or retracting shaft in respect to the rear position of the advancing or retracting shaft when the processing liquid is supplied under utilization of the advancing or retracting shaft 27.SOLUTION: A housing 6 comprises a rotating shaft 12 having a fluid passage 13 and an advancing or retracting shaft 27 having a fluid passage 28. Opposing surfaces of the rotating shaft 12 and the advancing or retracting shaft 27 are provided with a pair of first and second seal members (15, 29). A water flow direction changing chamber 35 is installed at a rear position of the advancing or retracting shaft 27. A water pouring port 37a in a fluid passage 37 is communicated with the side part of the water flow direction changing chamber. Within the water flow direction changing chamber 35 is installed a water flow regulating member 41 formed like a rod member of which longitudinal direction is kept under a state that is faced toward an axis center 9a in such a way that fluid fed from the first fluid passage 37 may strike against the outer peripheral surface and flow apart to the right and left directions. |
