| 摘要 |
<p>PURPOSE:To prevent the breakage due to the excessive force to be applied to a coordinate input device which detects the component of force at each support point of a panel by a distortion gauge, by protecting a component distortion converting member consisting of a plastic post with a metallic protecting member. CONSTITUTION:The component of force produced when a point of a panel 20 is pushed by a finger, etc. is applied to a component distortion converting member 40 consisting of a plastic post via the protecting members 21 and metallic member 41 of the component detecting part 30 provided at four corners of a substrate 10. The distortion produced by the component of force are detected by distortion gauges 42 and 43. Then the coordinate input value is decided by the distribution of components of force at each support part. Here the member 40 is compressed with input of the excessive force. Thus the breakage of the part 30 is prevented by a contact secured between the metallic protecting member 21 at the side of the panel 20 and a cylindrical protecting member 31 fixed to the substrate 10 via a fixing nut 32.</p> |
