Patent ID: 7416149

Claim:
A webbing take-up device comprising: a spool to which a longitudinal-direction base end side of a long band-like webbing belt is attached, with the spool rotating in a take-up direction in regard to its axis, to thereby take up the webbing belt from the base end side around an outer peripheral portion of the spool from an unwound position into a re-wound position; drive means that is disposed with an output shaft, which causes the output shaft to rotate by outputting a drive force, transmits the rotation of the output shaft to the spool, and causes the spool to rotate in the take-up direction; computing means that integrates a take-up time after the drive force is outputted, integrates a stop time in which the rotation of the output shaft is stopped while integrating the take-up time, and computes the difference between the integrated take-up time and the integrated stop time; and control means that actuates the drive means in accompaniment with the release of a fastened state of the webbing belt with respect to the body of a vehicle occupant, and causes the drive means to stop on the basis of the fact that the difference between the integrated take-up time and the integrated stop time computed by the computing means has reached a predetermined time indicative of said webbing belt being in said re-wound around said spool, a lock current detection circuit that signals to the control means when a lock current flows to the drive means, wherein said control means de-actuates said drive means in response to said signal from said lock current detection circuit and re-actuates said drive means in response to a cessation of said signal such that said drive means is actuated until said difference reaches said predetermined time regardless of a duration of de-actuation of said drive means in response to said signal from said lock current detection circuit.