| 摘要 |
The present invention relates to a roller tube internal structure of an awning to provide tensile force for a screen and, more specifically, to a roller tube internal structure which is able to: spread a screen tightly by applying tensile force corresponding to restitution force to the screen wound on a spline by accumulating the restitution force as a tension spring stretches by the linear motion of a screw nut by enabling the screw nut inserted into a bolt screw to rotate in one direction when an axial lock rotates in one direction; minimize the flopping and shaking motions of the screen by wind by applying tensile force to the screen; and reduce the risk of accidents. For the above, the roller tube internal structure of an awning for providing tensile force for a screen comprises: a first end cap which opens and closes an end part of a roller tube; a roller shaft which is fixated on the first end cap by penetrating the first end cap; a bolt screw which has a screw thread in one part of the outer circumference surface of the roller shaft; a screw nut which linearly moves on the bolt screw while being interlocked and rotating with the screw thread of the bolt screw; and a tension spring which is inserted into one part of the outer circumference surface of the roller shaft, is combined with the screw nut at one end part, and is fixated on the other end part. |
