Abstract: A helmet includes a helmet shell and an impact absorber arranged at an inner side of the helmet shell. The impact absorber includes a hemispherical main body and an inserted member. The main body includes an insertion recess in an outer surface of the main body, the insertion recess defines an insertion space between the outer surface of the main body and an inner surface of the helmet shell, and the insertion space is open toward a fitting opening of the helmet shell. The inserted member is press-fitted into the insertion space.

Abstract: If a distance from a current position to a guide point is less than a predetermined distance, a normal output process and a stop process of a guide image are repeatedly performed. If a priority display request for a guide image is performed, a priority output process of the guide image is performed prior to the stop process. If an interval between the priority output process and the normal output process performed after the priority output process is short, the priority output process continues until the normal output process starts.

Abstract: A helmet airflow control member includes a plate-like main body arranged on a shell and including a main body rear surface that covers part of a shell outer surface, and at least one passage formation portion arranged on the main body rear surface. A periphery of the main body rear surface includes a first peripheral portion, which is shaped in correspondence with the shell outer surface and closes a space between the main body rear surface and the shell outer surface, and a second peripheral portion, which is spaced apart from the shell outer surface and defines an opening of the space between the main body rear surface and the shell outer surface in cooperation with the shell outer surface. The passage formation portion defines a passage in the space, with the passage extending from the opening into the space and returning from the space to the opening.

Abstract: A neck cover and a helmet are provided that improve quietness of a helmet interior and that do not cause inconvenience for a wearer. In order to eliminate a gap between an opening portion of a helmet and a neck periphery of a wearer, insert-through holes, which are for passage of a chin strap that is attached to an inner side of the helmet, are formed in a portion, which covers a front portion (throat) of a neck, of a neck cover that is attached to a peripheral edge of the opening portion.

Abstract: Plural contact pieces of a shaft member, which is mounted to a helmet main body, abut a cam surface that is formed at a hole portion provided in a proximal end portion of a chin guard. When the chin guard is rotated from a fully closed position to a fully open position with respect to the helmet main body, at least one of the contact pieces abuts an anchor surface, and, simultaneously, at least another one contact piece fits into a concave portion, and, due thereto, the chin guard is fixed with respect to the helmet main body.

Abstract: A helmet that can effectively reduce the rotational acceleration of an impact and at the same time also effectively reduce translational acceleration is provided. A helmet has an outer shell including a hard material and a shock absorbing liner (14) disposed inside the shell. The shock absorbing liner (14) includes a main body liner (16), a recessed portion (30) provided at an inner surface of the main body liner (16), an insert liner (18) fitted into the recessed portion (30), and a central raised portion (42) (central support member) disposed between a bottom surface of the recessed portion (30) and a bottom surface of the insert liner (18). When the helmet receives an impact, the insert liner (18) swings about the central support member as a fulcrum, thereby reducing the impact.

Abstract: A screen device includes a combiner that shows an image projected by a helmet at the helmet; and a vertical movement mechanism attached to a shell of the helmet, wherein the vertical movement mechanism supports the combiner so that the combiner is movable in a vertical direction and so that an inclination of the combiner is changeable with respect to the vertical direction.

Abstract: A visor locking mechanism is applied to a helmet equipped with a visor. The visor is provided on an inner side of an outer shell of the helmet which has a facial opening in a front side thereof. The visor is attached to a pair of left and right holders which are pivotably attached to the outer shell. The visor is configured to close or open at least part of the facial opening. A lock member that has an operation portion and a catch portion is disposed near at least one of the pair of holders. The operation portion allows the catch portion to fit together with or disengage from a catch counterpart portion provided at the pair of holders, whereby the visor becomes anchored or released.

Abstract: If a distance from a current position to a guide point is less than a predetermined distance, a normal output process and a stop process of a guide image are repeatedly performed. If a priority display request for a guide image is performed, a priority output process of the guide image is performed prior to the stop process. If an interval between the priority output process and the normal output process performed after the priority output process is short, the priority output process continues until the normal output process starts.

Abstract: A HUD device mounted on a helmet includes a projection module configured to project display light for displaying a display image capable of being visually recognized as a virtual image. The projection module includes a light emitter configured to emit display light and a concave mirror configured to reflect display light emitted by the light emitter toward a combiner. The light emitter and the concave mirror are incorporated separately in the left and right sides of a chin portion of a helmet. The light emitter includes a first portion including an LED and a second portion including a display element. The first portion extends from a lower side of the second portion toward the concave mirror.

Abstract: In an HUD device (3) mounted on a helmet (101), a projection unit (39) configured to project display light to a combiner (73) includes a light emitter (57) configured to emit display light, a housing (61) having a projection opening (63) through which display light emitted from the light emitter passes, and a cover member (65) having transparency to light and disposed to cover the projection opening. The projection unit (39) is incorporated in a chin portion (113) of the helmet body such that display light to be projected to the combiner passes through an optical path portion (119) provided in a mouse cover (115) of the helmet body (105). The cover member is disposed at an inner side of an interior member than a surface of the interior member at which an end of the optical path portion at a light emission side is open.