Abstract: A retractor permitting a forcible lock release is provided. It is constructed of a base, a retractor shaft, a latch plate and ratchet wheel fixed on the shaft, a lock plate loose-fit on the shaft, a sensor arm supported on the lock plate, a pawl connected to the lock plate displaceably between a lock position where the pawl prevents rotation of the latch plate in a webbing releasing direction and a non-lock position where the pawl permits free rotation of the latch plate, and a lock releasing device. The sensor arm is displaceable between an engagement position where the sensor arm engages the ratchet wheel and a non-engagement position where the sensor arm is maintained out of engagement from the ratchet wheel. The pawl is brought to the lock position when the sensor arm is at the engagement position and the lock plate is turned in the webbing releasing direction.

Abstract: A webbing retractor is equipped with a lock preventing means for maintaining a lock member out of engagement with a lockable member, e.g., a latch plate fixed on a take-up spring during an initial release stage of a webbing, even when an emergency locking mechanism causes the lock member to start moving toward a position where the lock member is engageable with the lockable member.

Abstract: A buckle assembly for a vehicle seat belt includes cover members, locking means, and locking member operating means. The locking means comprises a base member, a locking member, and biasing means for biasing the locking member toward its locking position, and these members may be assembled together by successively putting them on the cover member. The locking member operating means includes a push button slideably mounted between the cover members. The locking member may include a lever member for transmitting the slide movement of the push button to the locking member.