| 摘要 |
PURPOSE: To precisely set a switch contact part by forming a positioning part of the switch contact part in a lower case. CONSTITUTION: A lower case 28 is conformed with an upper case 2. Knobs 3, 4, 5, 6, 7, and 8 are journalled to the upper case 2 and suspend operational levers 3b, 4c, 5c, 6c, 7c, and 8a. Switch contact parts 11, 16, 19, 22, 25, and 26 have operational axes 11a, 16a, 19a, 22a, 25a, 26a joined to the operational levers 3b, 4c, 5c, 6c, 7c, and 8a. The lower case 28 forms positioning parts 28b, 28c, 28d, 28e, 28f, 28g, and 28i to position the switch contact parts 11, 16, 19, 22, 25, 26, etc., at desiring positions.
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