Patent ID: 9663064
Date: 2017-05-30
CPC Classifications: B60R,G01B,H03K,Y10T

Claim:
1. A seat belt lock comprising: a Hall sensor for detection of a locking state of the seat belt lock; a metal seat belt lock frame arranged in a seat belt lock housing, the frame having an essentially flat upper part and a corresponding essentially flat lower part, the upper part and the lower part being connected to one another in such a way that they bound a slit-like guide channel to receive an inserted seat belt latch; a spring-loaded locking body for locking a seat belt latch when inserted, the spring-loaded locking body being mounted on the seat belt lock frame; and a spring-loaded ejector for an inserted seat belt latch, the spring-loaded ejector being moveable in the guide channel in a translatory manner between a first end position and a second end position, the seat belt latch being coupled to a locking mechanism, as well as to the Hall sensor for detection of a locking state of the seat belt lock, wherein the Hall sensor will interact with a permanent-magnetic component, whose distance relative to the Hall sensor will change based on the translatory movement of the ejector during actuation of the locking mechanism, the Hall sensor being arranged on or in the seat belt lock frame and being covered by a metal shielding element extending essentially parallel to the seat belt lock frame and forming a flow concentrator for a magnetic field produced by the permanent-magnetic component and acting on the Hall sensor.