Buckle for head band has bands that are pulled to raise movable part to fix bands and press buttons that are pressed to raise movable part to release bands

摘要

The buckle has a base plate with a journal for a movable part, a movable part with a central opening for the journal and opposed angled edges for interacting with band teeth and a control element with two side walls, bolts and press buttons. The bands are pulled to raise the movable part to fix the bands and the press buttons are pressed to raise the part to release the bands.