Rotating member chatter preventing structure and webbing take-up device

摘要

A lock plate ( 46 ) chatter preventing structure which, under a predetermined condition, directly or indirectly engages with a take-up shaft that takes up a passenger-restraining webbing belt to deter the rotation of the take-up shaft in a webbing belt pullout direction. The lock plate chatter preventing structure includes: a support member that rotatably supports the lock plate ( 46 ); and an urging portion ( 128 ) formed continuously from the support member. The urging portion includes a leading end ( 128 B) that pressingly contacts one axial-direction end portion ( 116 ) of the lock plate and urges the lock plate toward the other axial-direction end.