Abstract: To easily set a rotary connector to a steering system when providing various types of switches for the steering system. A fixed-side housing and a movable-side housing are rotatably connected each other to wind a flat cable in a storage space partitioned between the both housings. The fixed-side housing has an outer cylindrical portion for partitioning a part of the storage space and a support wall is integrally formed outside of the outer cylindrical portion through a gap. Moreover, a switch is set inside of the support wall, the switch is connected to a joint bar through a flexible substrate at the inside of the support wall and conductors of the flat cable extended from the outer cylindrical portion are also connected to the joint bar.

Abstract: An external connector mounted on a printed circuit board of a steering system is composed of a first movable carriage to which flexible terminals are secured, a second movable carriage for guiding the first movable carriage in the X direction, and a support carriage for guiding the second movable carriage in the Y direction so that the first and second movable carriages can move in the X and Y directions, respectively, with respect to the support carriage. When a fixed direct coupler of a rotary connector is connected to the thus constructed external connector, if the fixed direct coupler is displaced with respect to the external connector, the first and second movable carriages of the external connector move in the X and Y directions, respectively, with respect to the support carriage, whereby the relative displacement between the fixed direct coupler and the external connector can be absorbed.