| 摘要 |
<p>PURPOSE:To eliminate labor of molding an outer case and an inner case of a focus pack in different steps and obviate an operation for fitting the outer case and the inner case into one piece by partitioning an outer case and a shaft hole which goes through an opening passage between inner frames from the opening passage by means of an insulation cylindrical wall and inserting a rotary operational shaft of a variable resistor through the hole of the insulation cylindrical wall. CONSTITUTION:Shaft holes 20, 21 which go through an opening passage 18 are disposed between an outer case 10 and an inner case 15. Holding members 23, 24 having a claw section 22 are press-fitted from the inside of the inner frame 15 into the shaft holes 20, 21. As a result, the cylinder holes 25, 26 of the holding members 23, 24 are partitioned by the opening passage 18 and the cylindrical wall (insulation cylindrical wall) of the holding members 23, 24. A focus rotational operation shaft 27 for adjusting a focus voltage is rotatably fitted to the cylinder hole 25 of the holding member 23. A rotational operation shaft 28 for adjusting a screen voltage is rotatably inserted into the cylinder hole 26 of the holding member 24.</p> |
