Patent ID: 8482814
Filing Date: 2013-07-09
Classification: F16G,H04N

Abstract:
1. A traveling unit driving apparatus comprising: a traveling unit supported on an apparatus frame to be able to reciprocate; a driving belt for causing the traveling unit to reciprocate with a predetermined stroke; a pair of pulleys for supporting the driving belt along a traveling direction of the traveling unit; a driving device for driving one of the pair of pulleys to rotate; and a belt fixing device for locking the driving belt in the traveling unit, wherein the driving belt is comprised of a belt with ends and teeth having opposite end edges, the belt fixing device is comprised of a first engagement portion and a second engagement portion provided in the traveling unit, a concave recess portion formed between the first engagement portion and the second engagement portion, and a lock fixing member that is fitted into the concave recess portion, the first engagement portion and the concave recess portion are provided with a first mount surface for bending and supporting one end edge portion of the belt with teeth, the second engagement portion and the concave recess portion are provided with a second mount surface for bending and supporting the other end edge portion of the belt with teeth, the lock fixing member is fitted into the concave recess portion so as to sandwich and hold one end portion of the belt with teeth with the first mount surface, and further sandwich and hold the other end portion with the second mount surface with each end portion bent, and protrusions for engaging in a tooth surface of the belt with teeth are formed in each of the first engagement portion, the second engagement portion and the lock fixing member.