Vehicle seat reclining device

A vehicle seat reclining device comprising:

• a ratchet and a guide assembled in an axial direction to be rotatable relative to each other, the guide including a plurality of pairs of guide walls;
• a plurality of pawls respectively supported by the plurality of corresponding pairs of guide walls from both sides in a rotation direction, the plurality of pawls being configured to mesh with the ratchet by being pressed outward in a radial direction to lock a relative rotation between the ratchet and the guide;
• a lock spring;
• and
• a cam configured to press the plurality of pawls from an inner side to an outer side in the radial direction by a biasing force of the lock spring,
• wherein the guide has:
• welding dowels protruding outward in the axial direction and being configured to be welded to a seat frame, the respective welding dowels being formed between the respective pairs of guide walls, and
• a hooking hole formed between a specific pair of guide walls included in the plurality of pairs of guide walls, an end portion of the lock spring being hooked in the hooking hole, and
• wherein, in a state before the welding dowels are welded to the seat frame, a width between the specific pair of guide walls where the hooking hole is formed is larger than a width between another pair of guide walls included in the plurality of pairs of guide walls.