Helmet (1) comprising: a shell (2); a head receiving system (3); at least one cellular energy-absorbing structure (4) comprising a plurality of interconnected open-cells (9) configured to absorb energy by deforming during an impact on the shell (2); at least one clamping device (5) comprising a base (6) and a counter-base (7) connected to each other via a collapsible body (8) sized so as to enter one or more open-cells (9) of the cellular energy-absorbing structure (4); wherein the base (6) or the counter-base (7) of the clamping device (5) comprises a low friction part (26) configured to enable a relative movement of the cellular energy-absorbing structure (4) and the clamping device (5) with respect to the shell (2).

Helmet (1) comprising: a shell (2); a head receiving system (3); at least one cellular energy-absorbing structure (4) comprising a plurality of interconnected open-cells (9) configured to absorb energy by deforming during an impact on the shell (2); at least one clamping device (5) comprising a base (6) and a head (7) connected to each other via an elongated collapsible body (8) wherein the collapsible body (8) is sized so as to enter one or more open-cells (9) of the cellular energy-absorbing structure (4) and the head (7) is configured to lock the at least one clamping device (5) to the cellular energy-absorbing structure (4), wherein the base (6) or the head (7) is attached to an inner surface of the shell (2).

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.

A helmet for work or sports, including a structure having a substantially convex outer surface and a substantially concave inner surface; a protective body of polystyrene, having a first portion engageable to the inner surface and a second portion having a concavity for receiving the head of a user. The protective body includes: a base element made up of a first material for shock and/or impacts absorption having a predetermined first density value, the base element having a concave surface defining the concavity and a housing cavity facing away with respect to the concave surface; a protective insert made of a second material for shock and/or impact absorption having a second predetermined different density value, preferably lower, than the first density value of the first material, the protective insert being at least partially insertable in the housing cavity.

Helmet-mounted systems (100) that may include lighting systems (102) and solar-powered battery systems (112), automated controls (116), and/or integrated sensors (104) that result in an automated and fully integrated systems that do not require user-initiated recharging of batteries or require a user to manually turn the components of the system on and off.

The present invention relates to a helmet comprising a shell; and a force redirection member disposed between the shell and a head when the helmet is worn, the member configured to redirect a force impacting on the shell to a direction different from the original direction of the impact on the shell. The present invention also relates to a method to decrease the risk of injury to a person wearing a helmet, caused by rotational forces when the helmet is impacted by a force characterized by a specific direction having a first vector, the method comprising redirecting the force into a different direction having a second vector, wherein the direction of the second vector is selected to reduce the risk of a specified injury associated with acceleration of the head in the direction of the first vector.

Described herein are helmets comprising at least one surface reinforcing component. In some embodiments the surface reinforcing component comprises at least one anchoring feature embedded in a structural feature of the helmet, such as a force absorbing element. In other embodiments, the surface reinforcing component comprises fasteners configured to mate with a respective fastener on a shell of the helmet.

Disclosed are s full-form flat-knitted helmet shell preform, the preparation method, and the helmet shell, which belong to the field of helmet material technology. Two different knitting directions of the helmet shell preforms are prepared by means of longitudinal knitting and transverse knitting combined with partial knitting respectively; Meanwhile, reinforced yarn is added during the knitting process of the preforms to obtain the transversely and longitudinally knitted helmet shell preforms with reinforced yarn. The fabric structure of the preforms disclosed in this invention is a flat-knitted three-dimensional fabric with reinforced yarns, which solves the problem of low tensile strength and high elongation of flat-knitted fabrics, and solves the poor impact resistance caused by poor bonding strength between layers of helmet shells to some extent. Moreover, the method of preparing helmet shells from preforms improves production efficiency, reduces material waste, and solves the problem of poor dimensional stability.

A helmet is provided that can include a cage defining a front end, a back end opposite the front end, a first lateral end and a second lateral end opposite the first lateral end. The cage can include multiple longitudinal beams that extend between the back end of the cage and the front end of the cage; and a transverse beam that extends between the first lateral end of the cage and the second lateral end of the cage. The transverse beam can be anchored to the multiple longitudinal beams. The helmet can include a body that fully encapsulates the multiple longitudinal beams of the cage and that partially encapsulates the transverse beam. The body can define multiple vents. Each vent can be situated between two adjacent longitudinal beams. The transverse beam can extend through one of the multiple vents.

An impact protection and shock absorbing device includes a support surface, and a plurality of flexible spines, configured of one or more sizes, each having a length defined from a base portion at the support surface to a distal portion thereof, and whereby each spine extends in one or more longitudinal directions outwardly from the support surface, at one or more angles less than 90 degrees. Sufficient deflecting of one or more spines by impact force causes impinging and deflecting of one or more other spines thereby dispersing and reducing impact forces.