Reclining device and seat

A reclining device for holding a seatback to a seat cushion in a tiltable manner and fixing the seatback at a certain tilt angle, the reclining device comprising:

• a pair of reclining mechanisms arranged on both sides of a seat in a width direction thereof, and each having an internal gear fixedly attached to a frame of one of the seat cushion and the seatback and a cam arranged in juxtaposition with the internal gear in a thickness direction of the internal gear;
• a connecting rod extending in the width direction of the seat, coaxially coupled to the cam of each of the reclining mechanisms, and being rotatable together with the cam;
• and
• a resin bush having a cylindrical shape formed with a fit hole to receive a fitting part formed on the connecting rod at a portion adjacent to each end of the connecting rod, wherein
• the cam has a rod insertion hole for allowing the end of the connecting rod to be inserted therein,
• the internal gear has a bush insertion hole for allowing the resin bush to be inserted therein at a center position of the internal gear,
• the fitting part adjacent to the end of the connecting rod fits in the fit hole of the resin bush, and the end of the connecting rod protrudes outward of the resin bush, and
• the resin bush is placed in the bush insertion hole in contact with an inner surface of the bush insertion hole of the internal gear to retain the connecting rod at such a position to the cam that a clearance exists between an inner surface of the rod insertion hole of the cam and an outer surface of the connecting rod.