Filament Winding Apparatus

Abstract

A filament winding apparatus includes a tension detecting section, a cutting section and a gripping section. The tension detecting section is arranged on a path of a fiber bundle from a bobbin to a liner, and is configured to detect tension of the fiber bundle between the bobbin and the liner. The cutting section is configured to cut the fiber bundle connected to the bobbin. The gripping section is arranged upstream with respect to the cutting section in a travelling direction of the fiber bundle, and is configured to grip the fiber bundle cut by the cutting section. At this time, in a case where the tension of the fiber bundle detected by the tension detecting section is excessive, the cutting section cuts the fiber bundle and the gripping section grips a yarn end of the fiber bundle connected to the bobbin.

What is claimed is: 
     
         1 . A filament winding apparatus configured to wind a fiber bundle supplied from a bobbin around an outer circumferential surface of a liner, comprising:
 a tension detecting section arranged on a path of the fiber bundle from the bobbin to the liner and configured to detect tension of the fiber bundle between the bobbin and the liner;   a cutting section configured to cut the fiber bundle connected to the bobbin; and   a gripping section arranged upstream with respect to the cutting section in a travelling direction of the fiber bundle and configured to grip the fiber bundle cut by the cutting section, wherein   in a case in which the tension of the fiber bundle detected by the tension detecting section is excessive, the cutting section cuts the fiber bundle, and the gripping section grips a yarn end of the fiber bundle connected to the bobbin.   
     
     
         2 . The filament winding apparatus according to  claim 1 , wherein in the case in which the tension of the fiber bundle detected by the tension detecting section is excessive, after the cutting section cuts the fiber bundle, the gripping section grips the yarn end of the fiber bundle connected to the bobbin. 
     
     
         3 . The filament winding apparatus according to  claim 1 , wherein
 the cutting section includes a blade portion and a pedestal portion configured to receive a cutting edge of the blade portion, and   the path of the fiber bundle is arranged between the blade portion and the pedestal portion.   
     
     
         4 . The filament winding apparatus according to  claim 1 , wherein the cutting section and the gripping section are configured in a unified manner and are operated by a common drive section. 
     
     
         5 . The filament winding apparatus according to  claim 1 , wherein
 the tension detecting section includes a movable roller configured to regulate the path of the fiber bundle and to move in accordance with the tension of the fiber bundle, and a sensor configured to detect a position of the movable roller, the tension detecting section being configured to detect a tension abnormality of the fiber bundle by the sensor detecting that the movable roller has moved to a prescribed position, and   the cutting section includes a blade portion configured to cross the path of the fiber bundle by the movable roller moving to the prescribed position and to cut the fiber bundle.   
     
     
         6 . The filament winding apparatus according to  claim 1 , wherein in the case in which the tension of the fiber bundle detected by the tension detecting section is excessive, the winding of the fiber bundle is stopped.