Airway opening device for helmets and a helmet comprising the same

A helmet with an airway opening device for ensuring an open airway for a wearer of the helmet, wherein said helmet is configured with a superior region and with an inferior region which is integrally formed with the superior region and borders an open inferior edge, and the inferior region has two opposed side portions each of which having an interior and an exterior face,

• said airway opening device comprising right and left mandible engaging sections,
• wherein each of said mandible engaging sections comprises:
• i) an adjustable and angled airway opening member having a first element configured to contact a bottom of a corresponding mandible angle of the helmet wearer, and a second element which is angularly spaced from said first element and which is configured to contact the corresponding mandible angle in the vicinity of a ramus and to assure opening of the airway of the helmet wearer;
• ii) an element configured with an anteroposteriorly extending groove;
• and
• iii) means connected to said airway opening member and passing through said groove, to urge anteroposterior displacement of said airway opening member,
• wherein said groove configured element is connected to an area of the interior face of a corresponding inferior region side portion of said helmet to facilitate engagement between said airway opening member and the corresponding mandible angle only following selective anterior displacement of said airway opening member that applies a force to the corresponding mandible angle to cause jaw opening and ensure an open airway.