Patent ID: 8931851
Filing Date: 2015-01-13
Classification: B60R

Abstract:
1. A seat belt adjuster for a seat belt in a vehicle, the seat belt adjuster comprising: a pair of supporting swing rods including a first swing rod and a second swing rod with adjacent ends of the first and second swing rods hinged together and forming an included angle between the swing rods, where either non-adjacent end of the first or second swing rods is fixed in stationary state, and the other non-adjacent end of the first or second swing rods is movable as the included angle between the swing rods changes and configured to control locking and releasing of a strap of the seat belt by changing of a distance between the non-adjacent ends of the first and second swing rods; and an actuator configured to change the included angle between the swing rods by exerting force to the first swing rod and/or the second swing rod and/or a hinge point of the swing rods, and thereby apply a variable force directly on the strap of the seat belt via the other non-adjacent end, wherein when the first and second swing rods are in a 180-degree vertically aligned state, the other non-adjacent end can provide full supporting force perpendicularly on the strap of the seat belt, and thereby lock the strap of the seat belt to restrain the strap from moving, and, when the included angle between the swing rods is changed via an actuator under action of small signaling force, the other non-adjacent end releases the strap of the seat belt; and wherein the actuator comprises a mass object, and is configured to change the included angle between the swing rods automatically under an inertial effect of the mass object.