| 摘要 |
PROBLEM TO BE SOLVED: To improve the workability in replacing a detection switch by making it easy to attach/detach the detection switch to/from a reservoir part. SOLUTION: Ball sensing operation members 26 and 26 are tiltably disposed in a casing member 28, and the casing member 28 is detachably disposed in a ball tank 18. An opening 42a for making a storage space, sectioned inside the casing member 28, communicate with the outside is formed on a front wall 42 of the ball tank 18 corresponding to the storage space. The detection switch 30 for detecting the presence of reserved balls inside the ball tank 18 is detachably engaged/held in a mounting base member 32. The mounting base member 32 is stored and set in the storage space via the opening 42a. When the detection switch 30 is replaced, the mounting base member 32 is pulled out of the storage space, so that the detection switch 30 engaged/held in the base member 32 can be replaced in the outside. COPYRIGHT: (C)2005,JPO&NCIPI
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