| 摘要 |
PURPOSE:To improve the rigidity of an inner frame and also to attain dustproof by fitting a cover enclosing incorporatedly a suspension and an arm rear end part to a prescribed position of the inner frame. CONSTITUTION:The cover 13 enclosing the rear end part of the arm 7 having stylus 9 to its tip and the suspension 6 is fitted to the same vertical line as a position to which the suspension 6 of the inner frame 5 is fitted. Thus, the rigidity of the frame 5 is increased and the rear end part of the arm 7 or the like is applied with dustproof in the excellent way. |
