| 摘要 |
PROBLEM TO BE SOLVED: To mountably/removably couple a rotary drive shaft and a driven shaft without generating a play. SOLUTION: A cylindrical coupling member T has a cylindrical cover case 81 provided in a coupling end in one of a drive shaft 29 and a driven shaft P6 to have an insertion coupling member insertion hole 81b and a ball pressing member 83 supported through an elastic member 82 to an inner end of the insertion connection member insertion hole 81b. An insertion coupling member W, provided in a coupling end of the other shaft of the shafts to be coupled in an insertion condition to the insertion coupling member insertion hole 81b of the cylindrical coupling member T, has a plurality of balls and a ball containing wall 87 formed with a ball pressing member insertion port 88 and a plurality of ball protruding holes 87a, to protrude a plurality of the balls from the ball protruding hole 87a when the ball pressing member 83 is inserted from the ball insertion pressing member insertion port 88. This structure is formed by the cylindrical coupling member T and the insertion coupling member W. |
