Disclosed is a helmet with neck protection, which comprises a helmet shell, a collision displacement sensor disposed in the helmet shell, a gas generator disposed at an inner side of a lower rim of the helmet shell, an airbag stored in the lower rim of the helmet shell. The gas generator is connected to the airbag. The collision displacement sensor is connected to the gas generator through a restraint control module and a wire in order for the gas generator to release gas to inflate the airbag when the collision displacement sensor senses danger, therefore the airbag forms an air curtain falling down to protect the cervical vertebra. The airbag is folded and hidden in the helmet and is opened to fall down to form an annular air curtain under dangerous circumstances to stand against the shoulder to support the helmet to reduce the pressure caused to the neck.

An airbag system for protecting a body part of a user in case of an accident is provided. The system including an airbag adapted for inflation upon an accident occurring during an intended activity, at least one sensor configured to measure movements of the airbag system, and thus indirect the movements of the user and a control unit configured to determine if the user is in a first activity state not corresponding to the intended activity by processing the output from the at least one sensor.

An airbag system including an airbag and a detachable shell enclosing the airbag when the airbag is in a non-inflated state, and at least one size adjustment mechanism. Further, an inflatable helmet having such airbag system, and an item of apparel having such airbag system are provided.

A protective system is provided including an airbag system for protecting a body part of a user in case of an accident, including a control unit and a communication interface. The protective system further includes an external device having a communication interface. The communication interface of the airbag system is configured to communicate with the external device using wireless communication.

A helmet may be worn on a head of a wearer having a shape and a contour. The helmet may have a plurality of layers coupled together including an energy management layer and an outer shell layer disposed over the energy management layer. The plurality of layers are integrally formed with one another, and the energy management layer is configured to absorb and dissipate energy received by the helmet during an impact by an external force. The outer shell layer is configured to disperse and dissipate impact energy from the external force. Each of the plurality of layers has a density and a geometry, and the density or geometry of at least one layer differs from the density or geometry of at least another layer.

The invention relates to an inflatable airbag (1) for the protection of a person comprising a flexible sheath (10) which comprises at least two fingerlike extensions (11), wherein the flexible sheath (10) delimits a closed gas expansion chamber by the fingerlike extensions (11). The invention excels by the fact that the fingerlike extensions (11) are connected by at least one of being stitched, glued or welded to each other so that in an inflated state the airbag (1) takes a three-dimensional shape. The invention further relates to an airbag module, a vehicle occupant restraint system as well as vehicle parts comprising such airbag.

An airbag pad for sports clothing and equipment system including: an airbag pad for sports clothing and equipment assembly including: an airbag pad having a front-surface; a back-surface; and an inner-volume air compression pocket. The airbag pad for sports clothing and equipment system is in integral function combination an airbag pad, being defined by a front-surface and a back-surface. The airbag pad wherein defined by a front-surface and a back-surface contains an inner volume air compression pocket of the airbag pad suitable for use in injury prevention.

The present invention is a helmet system that reduces concussions by damping rotational forces transmitted to a helmet wearer's head. The helmet has an exterior shell with an internal side that has impact absorption apparatus attached. The helmet also has an internal body worn close to the wearer's head. A gap between the internal body and the impact absorption apparatus close to the shell is maintained with flexible projections. At least one magnet assembly is located with the exterior shell absorption apparatus, with a magnetic pole extending axially inwards, and at least one magnet array is located with the internal body, with the same magnetic pole extending axially outwards. Each internal body magnetic field is axially aligned with a magnetic field of a respective magnet assembly located with the exterior shell absorption apparatus. In a resting state the aligned magnetic fields have little magnetic interaction. The internal body, in contact with the player's head, moves independently from the exterior shell; in one embodiment the internal body moves freely on a skeletal structure. When the wearer's helmet collides with another object, the wearer's head drives the internal body out, and the collision object drives the exterior shell absorption apparatus in. Magnetic repulsion increases. When the collision is tangential, the exterior shell magnet assembly is offset from axial alignment with the internal body, and the magnet array with the internal body torques, so the internal body resists rotational movement, or the internal body moves in the opposite direction of the exterior shell rotation vector. This dampens transmission of rotational forces to the wearer's head. In one embodiment sensors on the internal body detect and send magnetic field acceleration data to a controller, and if the shell's rotation is above a threshold acceleration, the controller inflates an airbag around a user's neck and head to inflate and keep the user's head from moving.

The invention claimed is an interactive inflatable bladder mounted on the outside of any helmet and may be utilized in other forms of protective equipment worn for the purpose of protecting persons from impacts that may cause bodily injury. Helmets are used in numerous sports, activities, and occupations to protect the user from bodily injury resulting from impacts to the head. Existing helmet designs used today are based only on upon post-impact protections. The invention claimed herein improves on pre-impact designs by integrating existing state-of-the-art technologies used in other industries to the helmet to provide pre-impact protections to said post-impact helmet designs. Said system is not limited to helmets and could also be utilized in other forms of protective equipment.

An airbag (20) for protecting the head of a user in case of an accident is hereby presented. The airbag comprises an inflatable inner bag (21, 40, 50, 60) surrounded by an outer bag (22), wherein the structure of the outer bag (22) defines the shape of the airbag (20) when the inner bag (21) is inflated, and wherein said inner bag (21, 40, 50, 60) comprises a plurality of elongate first chambers (28, 29, 210, 211, 41, 42, 43, 44, 45, 46, 47, 48, 65, 66, 69, 610, 611, 612, 613, 614), each of which elongate first chambers forms a head protective part when inflated.