To provide a swivel joint capable of supplying a fluid of operating oil or the like to a plurality of turning objects and with a constitution simple in small size.
In an inner cylinder 31, an inner cylinder oil path 311 or the like is drilled, in this inner cylinder oil path 311 or the like, one end communicates with an inside annular groove 321d or the like, also a connection part 311b or the like in the other end is opened outward. In an intermediate cylinder 32, an intermediate cylinder oil path 321 or the like is drilled, in the intermediate cylinder oil path 321, one end communicates with the inner side annular groove 321d and an outer side annular groove 331c, also a connection part 321b in the other end is opened outward. In an outer cylinder 33, a plurality of outer cylinder oil paths 331 or the like extended in the horizontal direction are drilled, in this outer cylinder oil path 331 or the like, one end communicates with an outer side annular groove 331c or the like, also the other end is opened outward in a peripheral surface 33a of the outer cylinder 33.
TAMURA SHIGEKI
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