Device i.e. oil drain plug, for locking aperture of oil sump of automobile, has clamping wings comprising locking projection that faces lower side of insertion portion to engage with detent holders of aperture in locked condition of device

摘要

The device (10) has a locking head (14) arranged at an insertion portion (12), and clamping wings (20, 22) extending above a peripheral portion of the locking head. The insertion portion is inserted into an aperture by rotating the device to lock the aperture. Clamping arms are movably formed at the aperture, and the clamping wings comprise a locking projection (30) that faces a lower side of the insertion portion for engaging with detent holders of the aperture in a locked condition of the device. The locking head comprises a collar (18). An independent claim is also included for an oil sump for an automobile, comprising a ramp-like recess.