Abstract: A front cover for a helmet connectable to a shell for the helmet for covering an upper side, a rear side, and two sides of the head of a wearer so as to protect the upper side, the rear side, and two sides of the head of the wearer, is provided. The front cover includes a jaw protection portion configured to protect the wearer's jaw when the front cover is connected to the shell, and a jaw mediation portion connected to the jaw protection portion and configured to serve to mediate the jaw protection portion and the shell by being connected to the shell. When the jaw protection portion is connected to the shell by the jaw mediation portion, the jaw protection portion is rotatable based on the shell.

Abstract: A detachable pad fastening structure of a helmet includes a first fastening unit, which includes a first fastening member having a fastening hole formed therein and is disposed at an inner surface of a helmet main body. A second fastening unit includes a through-hole in the form of a slot in a detachable pad and a second fastening member formed to be movable relative to the through-hole, having at least a part protruding toward the outside of the detachable pad so as to be inserted into the fastening hole when the second fastening member is located at one side of the through-hole, and configured to be inserted toward the inside of the detachable pad so as to be removed from the fastening hole when the second fastening member is moved relative to the through-hole toward the other side of the through-hole.

Abstract: A chin guard positioning assembly connects a helmet body and a chin guard to each other. The helmet body provides a certain space to allow a user's head to be inserted thereinto and the position of the chin guard is allowed to be moved from a protective position to an open position. The chin guard positioning assembly includes a movable base part in which a position thereof is moved together with the chin guard. A fixed base part is connected to the helmet body and connected to the movable base part to serve as a reference for the movement of the position of the movable base part. A fixed magnetic force part is fixed to the fixed base part. A movable magnetic force part is fixed to the movable base part to fix the movable base part to a first position or a second position.

Abstract: A clothing part configured to surround a human body to protect the human body; and an accommodation part connected to the clothing part and configured to provide an accommodation space which is a predetermined space in which a predetermined object is received, wherein the accommodation part may form one surface together with the clothing part as an accommodation coupling part which is a part of the accommodation part is coupled to a clothing coupling part which is a part of the clothing part in a storing portion, and may provide the accommodation space which is a space in which a predetermined object is received, together with the clothing part as the accommodation coupling part and the clothing coupling part are separated from each other and thus a portion of the clothing part and a portion of the accommodation part are spaced apart from each other in an accommodation position.

Abstract: A helmet according to the present invention includes: a head frame being open toward the user's face, designed to cover the user's head, and having a rotation part at both sides; a face frame coupled to be turned up and down about the rotation parts and selectively closing the opening of the head frame; and a sun visor disposed at an upper portion of the face frame and coupled to be turned up and down about the rotation parts, in which the sun visor is turned up with the face frame when the face frame is turned up to open the opening of the head frame, and is fixed regardless of rotation of the face frame when a predetermined rotational limit is reached.

Abstract: A type variable helmet includes a half face unit formed to cover an upper part of a user's head, and an under face unit detachably attached to a lower part of the half face unit and configured to cover a lower part of the head of the user.

Abstract: A method for lighting up a luminous safety accessory includes separating the two sets of luminous sources such that they are each visible based on a different direction; separately lighting up the two sets of luminous sources; lighting up the first set of luminous sources in response to a positive acceleration, with the lighting involving the varying of the luminous intensity of the sources based on the measured acceleration; and lighting up the second set of luminous sources in response to a negative acceleration of which the absolute value exceeds a pre-determined threshold value, with the lighting involving the varying of the luminous intensity of the sources based on the measured acceleration.

Abstract: The present invention provides a helmet that is convenient in use. The helmet of the present invention includes a main body defining a space receiving a head of a wearer, a holder that is elastically coupled to the main body to be capable of pivoting and has a pushing member, a shield that is detachably coupled to the holder so that the wearer can securely obtain a viewing field, and a locking/unlocking unit that maintains or releases an open state of the holder when the holder pivots to the open state. The helmet structure as above can open and close the face shield by simply pushing the shield upward.

Abstract: A method for lighting up a luminous safety accessory includes separating the two sets of luminous sources such that they are each visible based on a different direction; separately lighting up the two sets of luminous sources; lighting up the first set of luminous sources in response to a positive acceleration, with the lighting involving the varying of the luminous intensity of the sources based on the measured acceleration; and lighting up the second set of luminous sources in response to a negative acceleration of which the absolute value exceeds a pre-determined threshold value, with the lighting involving the varying of the luminous intensity of the sources based on the measured acceleration.