Patent ID: 9539980
Date: 2017-01-10
CPC Classifications: B60R

Claim:
1. A seat belt retractor including at least a spool that retracts a seat belt for restraining an occupant, the seat belt retractor comprising: a vehicle sensor having a function of operating to inhibit rotation of the spool in a seat belt withdrawing direction in case of an emergency when a deceleration higher than a normal deceleration is applied to a vehicle; a webbing sensor having a function of operating to inhibit rotation of the spool in the seat belt withdrawing direction when the seat belt is rapidly withdrawn at a speed higher than a normal withdrawing speed; and a vehicle-sensor-function and webbing-sensor-function cancel control mechanism that controls cancellation of the function of the vehicle sensor and the function of the webbing sensor, wherein the vehicle-sensor-function and webbing-sensor-function cancel control mechanism includes: a control cam member that rotates with rotation of the spool to control operation of the vehicle-sensor-function and webbing-sensor-function cancel control mechanism; a first lever operationally controlled by the control cam member to cancel the function of the vehicle sensor; and a second lever that is coaxially connected to the first lever and movable relative to the first lever, wherein the second lever is operationally controlled by the cam member to cancel the function of the webbing sensor.