| 摘要 |
PROBLEM TO BE SOLVED: To provide a key sheet capable of coupling without generating any misalignment or tilting, by using the periphery of a flange for positioning to set direction. SOLUTION: A ring shaped circular key 4 is reversed and set in a positioning jig 6. A protrusion 9 of the flange 8 of the key 4 is engaged in a notch 10 of the positioning jig 6 to limit the key 4 in the radial direction to position with reference to the positioning jig 6. A circle key top 1 is reversed and set in the positioning jig 6. A notch 3 of the flange 2 of the key top 1 is engaged to a protrusion 7 of the positioning jig 6 to limit the key top 1 in the radial direction to position with reference to the positioning jig 6. Adhesive is applied to the key top 1 and the key 4. The key top 1 and the key 4 are covered by a rubber sheet 5, pressurized to couple together then removed from the positioning jig 6. COPYRIGHT: (C)2005,JPO&NCIPI
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