JPS62112648U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a front view showing the first embodiment of the webbing retractor according to the present invention, FIG. 2 is a left side view showing the webbing in the maximum retracted state with the cover of FIG. 1 removed, and FIG. 1 is an exploded perspective view showing the main parts, FIG. 4 is a front view corresponding to the cross-sectional view taken along the line in FIG. 1, showing the lock plate and its related structures, FIG. is the back view of the lock ring,
FIG. 7 is an operational diagram of FIG. 2 showing the webbing being pulled out to its maximum state. 10... Webbing winding device, 22... Winding shaft, 24... Webbing, 50... Lock ring, 56
...Ratchet tooth, 67...Planetary gear, 70...
Rotating ring, 72...Internal gear, 80...Engaging protrusion, 80A...Low protrusion, 80B...High protrusion, 84
……arm.

Claims (1)

[Scope of utility model registration request] A lock ring that rotates following a take-up shaft of webbing for occupant restraint; a lock means that prevents the take-up shaft from unwinding the webbing when the lock ring lags in rotation with respect to the take-up shaft; and a vehicle. an acceleration sensor that applies a resistance force to the follow-up rotation of the locking wheel in an emergency; an approaching/separating means that can select between two states of biasing the locking wheel in the approach direction and biasing state in the separating direction; and a winding shaft rotation. When a force is received and the webbing take-up amount exceeds a predetermined value, the approaching and separating means is biased in a direction away from the lock wheel, and when the webbing unwinding amount reaches a predetermined value, the approaching and separating means is biased toward the lock wheel. A webbing retractor comprising: planetary gear means for biasing in an approach direction.