Sealing cover of fuel filler opening of e.g. chain=saw

摘要

The cover has an elastically sprung locking element (30) located in one thread turn (9) of a screw thread (3) with a locking face (31) in the circumferential direction of the cover (20). The locking face lies opposite a lock stop (7) with the cover in its closed position in its screwing out direction. The lock stop is formed by one end (3a,3b) of the thread turn of the internal thread, and the locking element is located on a radially spring-loaded tongue.