| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball put-out device coping with the ball put-out operation only with a ball put-out passage during operation in which ball put-out is carried out and allowing a ball removing passage not formed up to that time, to appear to carry out ball removal at a point of time when ball removal is required. <P>SOLUTION: The wall surface outside of a ball put-out lead-in passage 42 leading to the downstream ball put-out passage 17 from a ball stand-by passage 16 in which balls stand by upstream is provided with a variable passage wall 28 displaced into a ball removal lead-in passage forming position 59 leading to the ball removing passage 18 from the ball stand-by passage 16. Based on the displacement of the variable passage wall 28 into the ball removal lead-in passage forming position 59 from a ball removal lead-in passage unformed position 58 located on the wall surface outside of the ball put-out lead-in passage 42, a ball removal lead-in passage 53 is formed between the variable passage wall 28 and an outer wall surface (a reference surface) 54 of the ball put-out lead-in passage 42. <P>COPYRIGHT: (C)2012,JPO&INPIT |
