Patent ID: 9025215
Filing Date: 2015-05-05
Classification: H04N

Abstract:
1. A cable wiring structure comprising: a base member; a movable member configured to reciprocate in a first direction and in a second direction, which is opposite to the first direction, relative to the base member; a driving unit configured to reciprocate the movable member; a cable, which has flexibility and comprises a curved portion which has a curved shape and is convex toward the second direction, wherein one end of the cable is fixed to the base member and the other end of the cable is connected to the movable member; a tension applying member, which is attached to the movable member and is movable in the first direction and in the second direction relative to the movable member, wherein, when the movable member moves in the second direction, the tension applying member comes in contact with an inner circumference of the curved portion; and a load adjustment portion, which is configured to increase a load that is applied between the tension applying member and the movable member in a case where the movable member moves in the second direction as compared with a case where the movable member moves in the first direction; wherein the tension applying member comprises a pressing member, which is mounted on the movable member and extends from the movable member toward the curved portion so that a front end thereof comes in internal contact with the curved portion, and wherein, when the movable member moves in the second direction, the tension applying member makes the front end of the pressing member come in contact with an inner circumference side of the curved portion to displace the pressing member relative to the movable member by a force that acts from the curved portion to the pressing member, so that the tension applying member approaches the curved portion relative to the moving member and moves the moving member in the second direction to thus apply the tension to the cable.