Reclining device for vehicle seat

A reclining device for a vehicle seat, the reclining device comprising:

• a housing having one side opened to communicate with an interior of the housing;
• a clutch drum rotatably disposed in the housing and having one side directed toward the housing and opened to communicate with an interior of the clutch drum;
• a cam disposed in the clutch drum and configured to receive a rotational force from an outside of the housing and to transmit the rotational force to the clutch drum;
• and
• a brake drum configured to receive the rotational force from the clutch drum and having a center to which a shaft is coupled,
• wherein the cam includes a plurality of coupling protrusions disposed on one surface of the cam directed toward the housing, and the plurality of coupling protrusions penetrate another side of the housing to be inserted into coupling holes of a lever bracket,
• wherein elastic members, each having rollers disposed at two opposite sides thereof, are arranged along an inner/outer periphery of the clutch drum to surround an outer periphery of the cam,
• wherein the cam includes first protruding portions disposed along the outer periphery of the cam, and
• wherein when the cam rotates, the first protruding portions are configured to press the rollers of the elastic members positioned in a rotation direction, such that the elastic members are compressed.