Disclosed is a portable smart air helmet including a head protection member including tubes configured to be expanded and provide an elastic force when air is injected into the tubes, and configured to be contracted and foldable when the injected air is discharged, an electric air pump configured to inject air into the head protection member or discharge the air injected into the head protection member, an accident notification device installed on the head protection member and the pouch and configured to automatically transfer information on an impact when the impact is applied to the head protection member and the pouch, and a pouch configured to enable a user to carry the electric air pump and the head protection member from which air is discharged.

A helmet includes a helmet shell including the crown and jaw portions, a front aperture defined by the aperture edge; and a mask selectively disposed in the front aperture, the mask being chosen from a family of masks, the family of masks including at least two masks of different types, the mask having an outer contour sized and shaped to conform to the aperture edge. A method for assembling a helmet of a family of helmets including providing a helmet shell including a crown portion, and a jaw shield portion; selecting the helmet of the family of helmets to be assembled; in response to selecting a first helmet: attaching a first mask to the helmet shell; and in response to selecting a second helmet: attaching a second mask to the helmet shell, the second mask being different from the first mask.

A helmet includes a helmet shell including the crown and jaw portions, a front aperture defined by the aperture edge; and a mask selectively disposed in the front aperture, the mask being chosen from a family of masks, the family of masks including at least two masks of different types, the mask having an outer contour sized and shaped to conform to the aperture edge. A method for assembling a helmet of a family of helmets including providing a helmet shell including a crown portion, and a jaw shield portion; selecting the helmet of the family of helmets to be assembled; in response to selecting a first helmet: attaching a first mask to the helmet shell; and in response to selecting a second helmet: attaching a second mask to the helmet shell, the second mask being different from the first mask.

A helmet including a helmet shell for receiving a head of a wearer of the helmet, the helmet shell including: a crown portion, and a first jaw shield portion integrally connected to the crown portion, the crown portion and the first jaw shield portion defining a front aperture; and a mask selectively closing the front aperture. The mask includes a mask body including a visor portion, and a second jaw shield portion integrally connected to the visor portion; and at least one connecting member connecting the mask body to the helmet shell, the mask body being selectively displaceable between a closed position and an open position: in the closed position, the mask body closing the front aperture and the second jaw shield portion mating with the first jaw shield portion, in the open position, the mask body being displaced away from the front aperture.

The helmet according to an embodiment of the present invention includes a helmet body; a pad coupled to the inside of the helmet body, and a coupling member that separably couples the helmet body and the pad, wherein the coupling member may include a male coupling member disposed in one of either the inside of the helmet body or the pad, and a female coupling member disposed in the other of either the inside of the helmet body or the pad and into which the male coupling member is inserted and fixed, wherein the male coupling member has a first inclined surface at a portion inserted and fixed into the female coupling member, and the female coupling member has a second inclined surface corresponding to the first inclined surface, and when an external force is applied to the pad in a first direction so that the male coupling member is separated from the female coupling member in a state in which the male coupling member and the female coupling member are coupled, the first inclined surface moves along the second inclined surface, and the pad is separated from the helmet body.

A modular helmet system comprises a helmet and a chin bar detachably mountable to the helmet. The helmet comprises two receiving-brackets. The chin bar may be inserted into the receiving-brackets of the helmet with its two ends in front in a substantially straight line, wherein the chin bar is lockable in the receiving-brackets in an end position. Each of the two receiving-brackets comprises two insertion flanks which extend towards each other along the direction of insertion at an acute centering angle, wherein the insertion flanks are configured to center the chin bar in the vertical direction when being inserted and to form a stop for the chin bar in the end position of the chin bar.

A modular helmet system comprises a helmet and a chin bar detachably mountable to the helmet. The helmet comprises two receiving-brackets. The chin bar may be inserted into the receiving-brackets of the helmet with its two ends in front in a substantially straight line, wherein the chin bar is lockable in the receiving-brackets in an end position. Each of the two receiving-brackets comprises two insertion flanks which extend towards each other along the direction of insertion at an acute centering angle, wherein the insertion flanks are configured to center the chin bar in the vertical direction when being inserted and to form a stop for the chin bar in the end position of the chin bar.

A protective football helmet is provided having a one-piece molded shell with an impact attenuation system. This system includes an impact attenuation member formed in an extent of the front shell portion by removing material from the front portion. The impact attenuation member is purposely engineered to change how the front portion responds to an impact force applied substantially normal to the front portion as compared to how other portions of the shell respond to that impact force. In one version, the impact attenuation member is a cantilevered segment formed in the front portion of the shell.

Disclosed are devices and methods for optimizing a protective helmet or other item of protective clothing with one or more enhanced principal impact zones and/or impact elements that incorporate protective features that can be particularized to a specific player-position and/or the individual behavior of a specific player or wearer.

Disclosed are devices and methods for optimizing a protective helmet or other item of protective clothing with one or more enhanced principal impact zones and/or impact elements that incorporate protective features that can be particularized to a specific player-position and/or the individual behavior of a specific player or wearer.