| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a frequently occurring case when clamping a spherical or columnar object by using a tweezer, that the clamped object is flipped toward the front.SOLUTION: In a parallel pressing tweezer provided with joint rollers 6 attached to a gripping part 5, clamping parts 1 and 2 and the gripping part 5 are formed. Each of the clamping parts 1 and 2 has a screw hole for connecting the clamping parts from a middle height position of a side surface orthogonally toward a central axis, and the gripping part 5 has a penetration hole provided vertically at a center part thereof. Each joint roller 6, having an outer diameter larger than the thickness of each arm of the gripping part and formed rotatable, is fitted in a cut-out hole 16 provided in advance on each side surface of the gripping part. Simultaneously, each joint roller 6 is attached to each arm of the gripping part 5, after being rotatably fixed by a fixing shaft 11 connecting the gripping part 5 from a top surface to a bottom surface so as to penetrate a center hole of the joint roller 6, and by this, the left and right clamping parts 1 and 2 are connected to the gripping part 5 through the joint rollers 6. Further, screw rods for adjusting a protruding length of the clamping parts 1 and 2 and pressing springs 18 are respectively attached to a tip end direction and a root direction from the connecting position of the joint rollers 6 as a center, allowing an angle of the clamping parts 1 and 2 to be freely set. |
