Patent ID: 8291803

Claim:
An optical fiber cutting device for cutting an optical fiber, comprising: a disk-shaped blade member which forms a flaw on a surface of a glass fiber part of the optical fiber by being moved toward the glass fiber part of the optical fiber; and a contact member fixedly provided halfway through a movement path of the blade member, wherein: a contact area between the blade member and the glass fiber part is changed by rotating the blade member in synchronization with a movement operation of the blade member, rotation of the blade member is implemented by a contact friction force which is generated by contact between the blade member and the contact member, the blade member includes a feed roller for receiving the contact friction force, and a one-way clutch for transmitting torque of the feed roller to the blade member only during rotation in one direction of the feed roller, the optical fiber cutting device further comprises a position adjusting mechanism which adjusts contact friction between the feed roller and the contact member, and the contact member is fixed through the position adjusting mechanism, and an amount of rotation of the blade member is changed by adjusting the position adjusting mechanism.