A helmet assembly having a helmet, a mandible guard, and an accessory attachment system that is used to selectively attach and secure the mandible guard to the helmet is disclosed. In some embodiments, the mandible guard is arranged to be detached from a first side of the helmet while remaining secured to a second side of the helmet. In such embodiments, the mandible guard may be moved outwardly and away from a wearer as the mandible guard pivots around the accessory attachment system attached to the second side of the helmet.

A helmet is disclosed including: a helmet body; a jaw guard with two fork handles through which the jaw guard is mounted on the helmet body and rotatable around a fixed axis relative to the helmet body; a shield assembly including a shield and a bracket, which is movable between a lowered position and a raised position relative to the helmet body; and a lifting mechanism including a trigger located beside the bracket of the shield assembly and driven by the fork handles of the jaw guard, and the trigger can touch the bracket of the shield assembly at the lowered position and raise the shield assembly from the lowered position. The lifting mechanism further includes an elastic element with one end connected with the bracket, which is arranged to make the shield assembly continue to move to the raised position after the shield assembly leaves the lowered position.

A helmet comprising a helmet body and a chin bar is disclosed. The helmet body comprises an opening and two attachment anchors located opposite each other proximate a leading edge of the opening. Each attachment anchor comprises a pivot socket and a lock support. The chin bar comprises two opposing ends, each releasably coupled to a different attachment anchor. Each end of the chin bar comprises a locking mechanism engaged with a lock support of a different attachment anchor, and a pivot arm releasably and pivotally coupled to the pivot socket of the different attachment anchor. The chin bar is pivotable between a first angle and a second angle with respect to the helmet body, and the pivot arms are releasable from the pivot sockets of the helmet body while the locking mechanisms of the chin bar are disengaged from the lock supports of the helmet body.

A cover includes a receiver having a concave-shaped inner surface and a flap including a first side coupled to the receiver and a second side including a fastener. The flap may be movable relative to the receiver from an open position to a closed position. The fastener may be configured to be coupled to the receiver when the flap is in the closed position.

A protective helmet including a helmet body, a facemask extending from the front portion to cover at least a portion of a face of a wearer, and one or more adjustment mechanisms securing the facemask to the helmet body. The adjustment mechanism(s) is/are connected to the helmet, include(s) an engagement member engaged with the facemask, is/are selectively engageable with the facemask in at least two vertically spaced apart positions of the facemask relative to the helmet body, and allow(s) toolless adjustment between the vertically spaced apart positions. Adjustment mechanisms and methods of positioning a facemask are also discussed.

A protective helmet has a jet helmet part and a chin part which are releasably connected to each other by a coupling part. The chin part and the jet helmet part can be swiveled relative to each other by a swiveling mechanism between an integral helmet position and a jet helmet position. The coupling part includes a coupling element on the chin part and a second coupling element on the jet helmet part, which coupling elements engage to form a mutually releasable form-fit coupling. The swiveling mechanism actuates a locking mechanism where the locking mechanism includes a blocking slider and is designed such that, in the integral helmet position, the blocking slider blocks the first coupling element such that a decoupling of the coupling elements is prevented, and in the jet helmet position, the blocking of the first coupling element is released thereby enabling the coupling elements to be decoupled.

A chin-bar for a helmet with a crumple zone and an integrated air-flow system formed from passages running internally from the bottom to the top of the chin-bar. A scoop at the bottom of the chin-bar controls air flow. Diffusers at the top provide de-misting and fresh air to the rider.

A helmet assembly includes a face shield and a single, center top mounting arrangement that operatively connects a center top location of the face shield to a center front mount on the helmet. The face shield can be raised and lowered about a pivot axis provided in the mounting arrangement between a tilted up, non-use position and a lowered, deployed position. The mounting arrangement can include a detent and two recesses, wherein the detent engages a first recess at a slightly forwardly displaced position to allow ventilation between the helmet and mandible and the face shield and a second recess at the tilted up, non-use position. The recess and detent engagement can be overcome by easy manual force acting on the face shield to reposition the face shield.

A bicycle helmet system comprising a helmet and a chin bar is disclosed. The chin bar is removably coupled to the helmet and wrapped circumferentially around a portion of the helmet. The chin bar may include a rear buckle configured to tighten the chin bar around the helmet. The chin bar may also include two side buckles that engage with side recesses on the helmet when the chin bar is removably coupled to the helmet. The chin bar may also include two alignment protrusions positioned to engage with alignment recesses on the helmet when the chin bar is removably coupled to the helmet.

Embodiments of the present disclosure provide for a modular helmet apparatus and system comprised of a removable outer shell disposed on an inner frame. The disclosed football helmet provides for enhanced energy diffusion through the use of one or more energy diffusion areas disposed on an outer shell of the helmet, the one or more energy diffusion areas being configured to align with the energy diffusion zones of the frame. Embodiments of the present disclosure enables a user to quickly and easily replace or swap the outer shell of the helmet with a second or replacement shell by selectively coupling the desired outer shell with the frame.