| 摘要 |
PROBLEM TO BE SOLVED: To reduce a load on a put-out structure from the balls of a ball storage chamber by securing a ball leveling function with the put-out structure. SOLUTION: Ball take-in gaps 36, 37 for taking-in the balls from a ball storage part 3 are arranged in front and rear parts with the put-out structure 24 as a boundary in a part between a put-out storage part 8 and the outer peripheral surface of the round bar 27 of the put-out structure 24. Ball guide projections 11, 12 for interrupting the function of a helical body 28 to separate the balls one by one are positioned at both sides in the front and rear direction of the rotary direction of the put-out structure 24 not at the downstream side of a ball carrying direction by the helical body 28, which is indicated by an arrow X1, in the ball take-in gaps 36, 37 but at the upstream side of the ball carrying direction of the helical body 28, which is indicated by the arrow X1, in the ball take-in gaps 36, 37, arranged by opening the upper part of the put-out structure 24, and disposed in front and rear parts by separation from the put-out structure 24. The helical body 28 in the upper part of the put-out structure 24 opened from the ball guide projections 11, 12 levels the balls P of the ball storage part 3 with the rotation of the put-out structure 24 in a direction indicated by an arrow W1. COPYRIGHT: (C)2007,JPO&INPIT
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