LOCK FOR HOLDING A FIRST PART TO A SECOND PART AND ASSEMBLY OF A FIRST PART AND A SECOND PART

A lock for holding a first part to a second part comprises a holding body with a receptacle for receiving a protruding part of the second part. The holding body having has a wall that borders the receptacle and a locking element, the locking element having a protrusion, whereby the locking element has a first position, whereby in the first position the protrusion is in a locking position, whereby in the locking position the protrusion protrudes from the wall into the receptacle by a first amount and the locking element has a second position, whereby in the second position the protrusion is in a release position, whereby in the release position the protrusion either protrudes from the wall into the receptacle by a second amount, whereby the second amount is smaller than the first amount, or the protrusion does not protrude from the wall.