Ear defenders for fastening to a protective helmet, in particular for forestry workers

An ear protection to be fastened to a protective helmet comprising two ear protectors each of which comprises:

• a fork-like supporting bracket on which an ear protection capsule is pivotably supported,
• a rotary plate jointedly connected to the supporting bracket in relation to which the supporting bracket can be bistably tilted into an extended and into a retreated position, and
• a receiving part attachable or attached a to a helmet in which the rotary plate is rotatably supported and pivotable between a protecting position and a parking position defined by stoppers,
• wherein the supporting bracket and the rotary plate are connected to each other by a tilting joint a tilting axis of which penetrates the supporting bracket and the rotary plate,
• in that a yoke spring disposed adjacent to the tilting joint between the rotary plate and a free end of the supporting bracket pre-stresses the supporting bracket to abut on further stoppers defining the extended and the retracted position and ensures its bistable tiltability in this way, and
• in that the receiving part is designed to be attached to the inside of a helmet.