Insertion Part for a Seat Belt Lock, a Lock Provided with Said Insertion Part

The disclosure relates to a switch adapter integrateable into a seat belt lock and used for monitoring the locking and unlocking state of the lock. Said switch adapter is embodied in the form of a monolithic plastic part and is provided with at least two adapter areas which are movable with respect to each other. The first adapter area carries a first switch element and the second adapter area carries a second switch element. Said switch adapter is in suitably integrateable into the lock of the seat belt which is provided with a frame and a locking element which is movably mounted with respect thereto, makes it possible to lock the seat belt buckle in the locking element thereof in a locking position and is unlocked in the unlocking position. The switch adapter is used for detecting the locking state of the seat belt locking element. For this purpose, the switch adapter and the locking element are actively connectable to each in such a way that the coupling state of the and the position of the locking element are modifiable only simultaneously.