The clamping elastic body is provided in accordance with the present invention is formed in a strip-like, is arranged on the other side of the clamp body and a clamping body arranged in a plurality of coupling grooves are spaced to one side, the fixed housing which is fixed to one side of the clamping body is inserted and, formed is rotatably disposed in the stationary housing preferably includes a threaded portion which is inserted coupled to the coupling groove of the clamping body which is inserted through the stationary housing, the engaging groove of the clamp has an inclination relative to the insertion direction of the clamp body to be preferred.
The clamping elastic body is provided in accordance with the present invention is effective to allow the case to allow to use a threaded portion rotatably inserted to the fixed housing varies the clamping force of the clamp becomes the fastening force of the clamp about, increasing the clamping force of the clamp and, there is an effect that it is possible to simply reduce the cost when building the structure of the fixed housing and the threaded portion to tighten the clamp. In addition, there is an effect that by inserting an elastic body in the screw portion so that the clamping force of a clamp fastened to the tube can be maintained. Also, fastened to the flexible tube, and so that the coupling groove is engaged with the threaded portion not damage the outer surface of the tube so that abut the outer surface of the tube, makes it easier to push the clamp body a coupling groove formed threaded portion is in the engaging groove It has the effect to be combined.