摘要 |
In a seat reclining device, reclining mechanisms that are respectively provided on right and left sides of a seat are constructed such that locking and unlocking motion thereof can be performed in synchronism with each other via a connection member. A connection structure of the connection member and a operation shaft is constructed as a transmission preventing mechanism for preventing transmission of the unlocking motion between the reclining mechanisms when a load is laterally disproportionately applied to the seat back in which the reclining mechanisms are in a locking condition such that a relatively different rotational displacement that permits to release the locking condition is generated between the reclining mechanisms that are arranged in rotationally synchronism with each other.
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