| 摘要 |
PURPOSE: To improve heat radiating nature of a motor and ease of its assem bling, and make it smaller in size. CONSTITUTION: Cases 60, 61 are of dual-split, and mounted on the first case 60 have been an opening 600 for inserting a motor 62 and a passing hole 601 through which a moving rod 64 can advance and retreat in the same direction, respectively. Consequently, the interior and exterior of the cases 60, 61 are communicated through the opening 600 and passing hole 601, and heat of the motor 62 is released outwardly to improve heat radiating nature of the motor 62. The opening 600 and passing hole 601 works as a guide for assembling the first case 60, to improve its mounting nature. The motor 62 is inserted in the opening 600, and the cases 60, 61 can reduce their width to achieve a scale reduction.
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