A helmet for protecting a head of a user, in which the helmet is adjustable to adjust how it fits on the user's head, including by adjusting dimensions of the helmet independently from one another (e.g., adjusting the helmet longitudinally and laterally in independent ways) and/or having a self-adjusting padded interface with the user's head to better fit on the user's head (e.g., depending on a shape and/or a size of the user's head).

A helmet comprising one or more additively-manufactured components designed to enhance performance and use of the helmet, such as: impact protection, including for managing different types of impacts; fit and comfort; adjustability; and/or other aspects of the helmet. Methods of additively-manufacturing components for such helmets are also provided, including methods involving expandable materials and the expansion of post-additively manufactured expandable components.

A bicycle helmet that fits over a surface of a head of a user generally includes a segment of flexible cell structures that form a radial honeycomb matrix movable between a folded condition where each side of the segment is disposed generally parallel and an expanded condition where the radial honeycomb matrix of the segment is configured to be expanded at least partially over the head of the user and arranged radially relative to the surface of the head of the user. The bicycle helmet includes a first and second side frame disposed respectively at the first and second ends of the honeycomb matrix.

An adjustable helmet includes a first shell, a second shell, and a size adjustment mechanism. The first shell includes a first side portion and a second side portion. The second shell is positioned between the first side portion and the second side portion. The first side portion and the second side portion of the first shell (a) at least partially overlap the second shell and (b) are laterally flexible with respect to one another to facilitate adjusting a size of the first shell between a minimum size and a maximum size. The size adjustment mechanism includes a tensioner extending between the first side portion and the second side portion. The size adjustment mechanism facilitates ratchet-less and infinite adjustment of the size of the first shell between the minimum size and the maximum size without requiring user manipulation of the size adjustment mechanism.

A bicycle helmet system comprising a helmet and a chin bar is disclosed. The chin bar is removably coupled to the helmet and wrapped circumferentially around a portion of the helmet. The chin bar may include a rear buckle configured to tighten the chin bar around the helmet. The chin bar may also include two side buckles that engage with side recesses on the helmet when the chin bar is removably coupled to the helmet. The chin bar may also include two alignment protrusions positioned to engage with alignment recesses on the helmet when the chin bar is removably coupled to the helmet.

A helmet includes a shell having an interior surface, a padding disposed along the interior surface of the shell, and a chinbar. The padding defines a first engagement surface positioned at a first lateral side of the padding and a second engagement surface positioned at an opposing second lateral side of the padding. The chinbar includes a cage, a first flange, and a second flange. The cage includes a first end defining a third engagement surface and a second end defining a fourth engagement surface. The third engagement surface interfaces with the first engagement surface and the fourth engagement surface interfaces with the second engagement surface. The first flange extends from the first end of the cage. The second flange extends from the second end of the cage. The first flange and the second flange of the chinbar are embedded within the padding.

A helmet includes a shell having an interior surface, a padding disposed along the interior surface of the shell, and a chinbar. The padding defines a first engagement surface positioned at a first lateral side of the padding and a second engagement surface positioned at an opposing second lateral side of the padding. The chinbar includes a cage, a first flange, and a second flange. The cage includes a first end defining a third engagement surface and a second end defining a fourth engagement surface. The third engagement surface interfaces with the first engagement surface and the fourth engagement surface interfaces with the second engagement surface. The first flange extends from the first end of the cage. The second flange extends from the second end of the cage. The first flange and the second flange of the chinbar are embedded within the padding.

The invention discloses a helmet with associated rotation of a chin guard and a face mask, comprising a helmet body, wherein the face mask and the chin guard are symmetrically hinged to a mounting groove at a side surface of the helmet body, the mounting groove is provided with a face mask rotation limiter, a face mask mount, a linkage guide annular piece connected with the face mask mount, a driving rod matched with the annular groove on the linkage guide annular piece, a chin guard mount connected with the driving rod via hinging pieces, and a chin guard rotation guide clamped on the driving rod and the chin guard mount, wherein a double-track guide groove for guiding the rotation of the chin guard is formed in the chin guard rotation guide, and the hinging pieces provided at two ends of the driving rod respectively pass through the double-track guide groove and are connected with the chin guard mount; wherein the face mask rotation limiter is mounted on the mounting groove by a connector, and the linkage guide annular piece is hinged with the chin guard rotation guide by a first rotating shaft; and the chin rotation guide is connected with the mounting groove by a connector.

A chin-bar for a helmet with a crumple zone and an integrated air-flow system formed from passages running internally from the bottom to the top of the chin-bar. A scoop at the bottom of the chin-bar controls air flow. Diffusers at the top provide de-misting and fresh air to the rider.

The disclosure relates to a protective sports headgear device and method for manufacturing a protective sports headgear device. The device may include various padding materials that can reduce the risk of head injury for the wearer. One or more external covering layers can be connected to the padding or can surround and retain the padding. The protective sports headgear device may provide protection for the ears of the wearer as well. Additionally, the protective sports headgear device can be suitable for use in the sports of water polo, wrestling, or other sports.