Warning device for passive seat belt system
First Claim
1. A warning device for a passive seat belt system, comprising:
- an emergency release buckle connected to a slider which moves along a slide rail arranged in a room of a vehicle;
a tongue carrying an occupant-restraining webbing fastened thereto;
a magnet displaceable between a first position and a second position, said magnet assuming the first position while the tongue and emergency release buckle are latched but a second position while the tongue and emergency release buckle are unlatched;
an anchor base member maintained in engagement with the slider while the slider is at an occupant-restraining position, whereby a tension applied to the webbing may be transmitted to a body of the vehicle; and
a magnetic flux sensor for detecting a magnetic flux from the magnet, said magnetic flux sensor being arranged between the anchor base member and the emergency release buckle.
1 Assignment
0 Petitions
Accused Products
Abstract
A warning device for a passive seat belt system is disclosed. It includes an emergency release buckle; a tongue; a magnet displaceable between a first position and a second position, said magnet assuming the first position while the tongue and buckle are latched but a second position while the tongue and buckle are unlatched; an anchor base member; and a magnetic flux sensor for detecting a magnetic flux from the magnet. In a preferred embodiment, the warning device further includes a magnetic shielding means made of a high-permeability material and allowing magnetic flux to pass under low magnetic resistance to the magnetic flux sensor except for an area on a magnetic-flux-travelling path extending from the magnet to the sensor. In another preferred embodiment, the magnet may be arranged between the anchor base member and the buckle.
53 Citations
9 Claims
-
1. A warning device for a passive seat belt system, comprising:
-
an emergency release buckle connected to a slider which moves along a slide rail arranged in a room of a vehicle; a tongue carrying an occupant-restraining webbing fastened thereto; a magnet displaceable between a first position and a second position, said magnet assuming the first position while the tongue and emergency release buckle are latched but a second position while the tongue and emergency release buckle are unlatched; an anchor base member maintained in engagement with the slider while the slider is at an occupant-restraining position, whereby a tension applied to the webbing may be transmitted to a body of the vehicle; and a magnetic flux sensor for detecting a magnetic flux from the magnet, said magnetic flux sensor being arranged between the anchor base member and the emergency release buckle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification