Abstract: The present application provides a helmet. The helmet includes an energy absorbing layer (2) and a sliding facilitator (5). The sliding facilitator is provided on an inside surface of the energy absorbing layer (2). A method of manufacturing the helmet is further provided. The method includes the steps of: providing an energy absorbing layer in the mold, and providing a sliding facilitator contacting an inside surface of the energy absorbing layer.

Abstract: A helmet comprising an energy absorbing layer (2) and a sliding facilitator (5) is provided. The sliding facilitator is provided inside of the energy absorbing layer (2). A method of manufacturing a helmet comprising a sliding facilitator is further provided. The method comprising the steps of: providing an energy absorbing layer in the mould, and providing a sliding facilitator contacting the energy absorbing layer.

Abstract: The invention according to the present invention relates to an intermediate layer (1) of friction decreasing material placed between two layers (2, 3). The intermediate layer (1) is adapted to create a sliding movement between the layers (2, 3) when a force (K) is applied and a tangential force component (KT) shears the layers. The friction decreasing material comprises fibers (F).

Abstract: The present technology relates to a locking device (2) for fixation of the position of an outer layers (4) relatively an inner layer (6) of a protective helmet (3), which protective helmet has a sliding layer (8) arranged between the outer layer and the inner layer, for facilitating displacement of the outer layer relatively the inner layer during an oblique impact towards the protective helmet. The locking device (2) comprises a layer-guiding member (10), that has an upper portion (12), which upper portion (12) is intended to be arranged in an opening (13) in the outer layer (4), and a resilient lower portion (16), extending from the upper portion (12), that in its free end (17) is arranged in connection to the inner layer (6). The present technology also relates to a protective helmet (3) comprising the locking device (2).

Abstract: The present invention relates to a locking device (2) for fixation of the position of an outer layers (4) relatively an inner layer (6) of a protective helmet (3), which protective helmet has a sliding layer (8) arranged between the outer layer and the inner layer, for facilitating displacement of the outer layer relatively the inner layer during an oblique impact towards the protective helmet. The locking device (2) comprises a layer-guiding member (10), that has an upper portion (12), which upper portion (12) is intended to be arranged in an opening (13) in the outer layer (4), and a resilient lower portion (16), extending from the upper portion (12), that in its free end (17) is arranged in connection to the inner layer (6). The present invention also relates to a protective helmet (3) comprising the locking device (2).