CONNECTING STRUCTURE FOR TUBE BODY

摘要

PURPOSE: To maintain a connection operability of tube bodies and to make the working precision relaxed by removing the factor of generating a backlash. CONSTITUTION: In the connecting structure of tube bodies, one tube body 1 forms a male side end 13 with a fitting hole 14. The other tube body 2 forms a female side end 23 with a fitting hole 24. A connecting means 3 mounted on the outer periphery of the female side end 23 and having a protrusion 33 protruding into the tube from the fitting hole 24 of the female side end is used to axially connect the tube bodies together. The male side end 13 has a tapered part 15 whose diameter is gradually reduced toward the end of the tube body 1. The fitting hole 14 is formed to be axially longer than the protrusion 33. The protrusion 33 is inserted into the tube of the female side end 23 to obtain the engaging state of the protrusion 33 with the fitting hole 14 of the male side end 13.