Patent ID: 7163172

Claim:
A reel driving device, comprising: a reel stand for driving a reel to rotate; and a latch including at least one contact portion contactable with the reel; wherein: the reel stand includes a convexed and concaved portion; the latch includes a claw portion for, when contacting the convexed and concaved portion, stopping a rotation of the convexed and concaved portion; while the reel stand rotates in a first direction, the latch moves in such a direction that the claw portion and the convexed and concaved portion contact each other by a rotation of the reel stand being conveyed to the at least one contact portion; and while the reel stand rotates in a second direction, the latch moves in such a direction that the claw portion and the convexed and concaved portion are separated from each other by a rotation of the reel stand being conveyed to the at least one contact portion.