| 摘要 |
PURPOSE:To make a device light in weight, to perform smooth motion and to give excellent dust preventing property by using a link mechanism by which a moving means and fixing means are connected through a rotating supporting part as a moving mechanism. CONSTITUTION:A working head 1 is driven and controlled together with a profiling device in the Z axis direction. Two pins are fitted to a fixed bar 13 and moving bar 14 respectively and the inner race of a ball bearing 17 is coupled with both ends of pins. The link mechanism is formed by fitting connecting links 15a and 15b to the outer race of ball bearing 17. The moving bar 14 and a contact 3 are vertically moved on the fixed bar 13 through a pin 26 being the joint of links and the ball bearing 17. A shield bearing is used as the ball bearing to make the device light in weight, to satisfy dust preventing property and guarantee smooth copying motion. |
