A protection device worn on a human body and protects a head of the human body includes a base portion attachable to the human body, and a protection unit having a honeycomb structure or a bellows structure, held by the base portion, and being reversibly switchable between a folded orientation in which the protection unit is folded and an unfolded orientation in which the protection unit is unfolded from the folded orientation and thus the protection unit covers the head of the human body, the protection unit being provided with a fixed end fixed to the base portion and a free end not fixed to the base portion, the protection unit is folded in a state where the free end is close to the fixed end, and the protection unit is unfolded around the head while the free end separates from the fixed end.

A foldable helmet is provided. The helmet includes a plurality of struts hingedly interconnected thereby enabling the struts to splay out from a closed packed state. Each strut includes a hinge along a length of the strut for folding the strut and a plurality of cutouts allowing the strut to bow in a direction opposite a fold direction of the hinge.

Protective headgear systems are disclosed. One protective headgear system includes an impact-resistant pad and a helmet. The impact-resistant pad includes a top portion configured to be positioned covering a top of a user's head, and first and second side portions extending downward from the top portion. The helmet is unconnected to the impact-resistant pad. The helmet is configured to be positioned overtop of the impact-resistant pad when the impact-resistant pad is positioned on the user's head.

Protective headgear systems are disclosed. One protective headgear system includes an impact-resistant pad and a helmet. The impact-resistant pad includes a top portion configured to be positioned covering a top of a user's head, and first and second side portions extending downward from the top portion. The helmet is unconnected to the impact-resistant pad. The helmet is configured to be positioned overtop of the impact-resistant pad when the impact-resistant pad is positioned on the user's head.

The invention belongs to the technical field of helmets and relates to a helmet with a transformable jaw protecting structure, wherein a jaw protector is reliably transformed between a full-face helmet position and a half-face helmet position in a gear constraint structure and mode, and the uniqueness and reversibility of a kinematical and geometrical locus of the jaw protector can be kept everywhere during a round trip. The helmet according to the invention has the greatest advantages that: the integrity of a whole structure of the mount and the jaw protector can be kept while implementing a transformable jaw protecting structure of the helmet in the meanwhile, thus ensuring that these core members have higher intensity and rigidity, and effectively enhancing the use safety of the helmet; in addition, an exposed slit may be dramatically reduced or even completely eliminated, buzzing noises derived by flowing an air current through a helmet housing surface and rainwater invasion may be significantly reduced, and a wearing comfort of the helmet is effectively improved; and besides, the difficulty in assembling the mount and the jaw protector is reduced and a precise gear engagement and constraint structure is adopted, so that the quality reliability of a helmet product can be effectively improved.

Embodiments include method, systems and computer program products for automatic adjustment of helmet parameters based on a category of play. Aspects include monitoring a plurality of sensors in a helmet and determining the category of play for a user of the helmet based on data received from the plurality of sensors. Aspects further include automatically adjusting one or more parameters of the helmet based on the category of play.

Embodiments include method, systems and computer program products for automatic adjustment of helmet parameters based on a category of play. Aspects include monitoring a plurality of sensors in a helmet and determining the category of play for a user of the helmet based on data received from the plurality of sensors. Aspects further include automatically adjusting one or more parameters of the helmet based on the category of play.

In one aspect, a protective headwear is provided and includes a headgear, an outer shell, a duct and a manifold. The headgear is configured to engage a wearer's head and at least partially support the protective headwear on a wearer's head. The headgear includes a front, a rear opposite the front, a right side, and a left side opposite the right side. The outer shell is coupled to the headgear at a coupling location and includes a shield positioned to the front of the headgear. The duct is at least partially coupled to and at least partially positioned in an interior of the outer shell. The duct is located below the coupling location. The manifold is positioned to the rear of the headgear and configured to divert airflow into at least a first portion of airflow and a second portion of airflow

A helmet mounted safety device comprises right and left mandible engaging sections. Each of the mandible engaging sections comprises an adjustable airway opening member for assuring opening of the airway, and is connected, whether integrally or detachably, to a side portion within an interior of a helmet in order to facilitate engagement with the mandible of a wearer of the helmet upon demand. A helmet comprising the right and left mandible engaging sections is also taught, and further comprises in one embodiment a neck stabilizing cervical support that includes an occipital portion and two sternocleidomastoid (SCM) portions between which the occipital portion is interposed, for engaging the SCM muscle at the side of the neck.

Disclosed herein are sports helmets having modular components. A modular component includes an eyewear adapter that is releasably attachable to the helmet and configured to interface with corresponding eyewear in an orientation that permits a wearer of the helmet to see through the eyewear. The eyewear adapter is configured such that, in use, the eyewear adapter enhances the fit or function of the eyewear relative to the use of the helmet and the eyewear without the eyewear adapter. A modular component includes electronics modules that can be mechanically and electrically coupled to the helmet. A modular component includes other functional modules that affect the aerodynamics of the helmet, the air flow of the helmet, the fit of the helmet, or the look of the helmet.