Patent ID: 6915722
Filing Date: 2005-07-12
Classification: B23B,B25B,F16D,Y10T

Abstract:
1. A clamping nut for clamping or releasing a clamp object member, wherein the clamping nut is located in a rotatable manner on the outer surface of the clamp object member and comprises, on its inner surface, a converting part for the purpose of converting rotary motion into rectilinear motion, wherein the clamping nut is moved back and forth by the rectilinear motion in the axial direction of the clamp object member, wherein the clamping nut is able to be rotated when it is held by a device for holding an outer surface of the clamping nut with a force that is imparted towards an inner surface of the clamping nut, and wherein the clamping nut has a non-contact area which takes the form of an annular concave groove along the outer surface of the clamping nut in at least a section of the area of the clamping nut that corresponds to the converting part, and which never comes in contact with the device.