Abstract: A protective helmet is described, with a helmet shell and with an interior fitting subassembly which comprises at least one supporting cage, a head band and a neck band. Three supporting arms serve to fasten the subassembly to the helmet shell with a spacing. A clearance is thus provided between the interior fitting subassembly and the helmet shell for receiving ear protection capsules and supporting brackets of an ear protection and of other helmet accessories. When not in use, the ear protection can be pivoted under the helmet shell. The protective helmet therefore does not provide any engagement possibilities whatsoever for obstacles such as branches and the like. The supporting arms partially transmit a force acting on the helmet from above back into the helmet shell in order to elastically deform the latter. The helmet therefore has an improved shock absorption capability.

Abstract: A tightening unit is described for a supporting band which is attached to the lower edge of interior fittings of a protective helmet for fastening the helmet on the head of a user. The supporting band comprises a head band which continues in a neck band which has two free ends connected to each other by a basic body of the tightening unit. The tightening unit has a neck shell and a basic body which are connected to each other in an articulated manner by a transmission lever. The basic body can be pivoted relative to the neck shell by a tightening lever linked thereto which is supported on the transmission lever by a cam.

Abstract: An interior fitting subassembly is described at least consisting of a supporting cage, a head band and a neck band for a protective helmet. Three support arms serve to fasten the subassembly on a helmet shell with a spacing. Although the support arms conduct a force acting on the helmet into the supporting cage said support arms endeavour to deform the helmet shell. The helmet therefore has an improved shock absorption capability. In addition, the support arms create a clearance between the interior fitting subassembly and the helmet shell or receiving ear protection capsules and supporting brackets of an ear protection and other helmet accessories.

Abstract: A hearing protection and/or loudspeaker element (1) is provided which includes a carrier part (2) arranged on a protective helmet (5) and a module (4) which can be actively connected to an outer ear of the wearer to act as a hearing protection and/or loudspeaker module. The carrier part (2) and protective helmet can be fixed to the head of the wearer. The module (4) which acts as the hearing protection and/or loudspeaker module can be adjusted in relation to the loudspeaker part (2) and shifted from a position of rest to a position of use. The module (4) itself is like a plug and is embodied as a part that covers the entrance of the human outer ear.

Abstract: A hearing protection and/or loudspeaker element (1) is provided which includes a carrier part (2) arranged on a protective helmet (5) and a module (4) which can be actively connected to an outer ear of the wearer to act as a hearing protection and/or loudspeaker module. The carrier part (2) and protective helmet can be fixed to the head of the wearer. The module (4) which acts as the hearing protection and/or loudspeaker module can be adjusted in relation to the loudspeaker part (2) and shifted from a position of rest to a position of use. The module (4) itself is like a plug and is embodied as a part that covers the entrance of the human outer ear.