Patent ID: 6352213
Filing Date: 2002-03-05
Classification: B60R

Abstract:
A webbing-retractor for connection to an axially rotatable winding shaft having a webbing belt with an end, the end being connected to the winding shaft, which takes-up the webbing belt by rotation in a retracting direction, the webbing belt being for restraining a vehicle occupant, the winding shaft having a locking device with a rotating body coaxially rotatable with said winding shaft in a pulling-out direction, the pulling-out directing being opposite to said retracting direction, the locking device including a locking mechanism preventing rotation of said winding shaft in the pulling-out direction when there is a sudden vehicle deceleration, said webbing retractor comprising:a pair of wall portions with a first wall portion provided at said rotating body and a second wall portion provided at said winding shaft at a retracting direction side of said first wall portion and faces said first wall portion; a compression coil spring which is disposed between said pair of wall portions, and which is compressed by a pressing force applied from said second wall portion due to rotation of said winding shaft in the pulling-out direction, and which presses said first wall portion by restoring force from the compressed state of said compression coil spring; limiting portions, at least one of which is provided integrally with said rotating body and at least one of which is provided integrally with said winding shaft, and which limit at an outer side of said compression coil spring displacement of said compression coil spring along a direction perpendicular to an axis of said compression coil spring; and an insertion hole provided between said pair of wall portions and penetrating said rotating body at a position further toward said second wall portion than to said first wall portion, and an opening dimension of said insertion hole along a direction from said first wall portion to said second wall portion is larger than a total length of said compression coil spring in a compressed state and smaller than a total length of a natural length of said compression coil spring, and said compression coil spring is inserted through said insertion hole between said pair of wall portions and into a region at an inner side of said limiting portions from a side of said rotating body opposite a side at which said wall portions exist.