Abstract: Provided is a helmet including a half helmet-shaped helmet main body including a main body through hole at each side thereof; a shield that is rotated vertically at a front side of the helmet main body and inserted into the helmet main body and has a through hole at each end thereof so as to be detachably connected to the helmet main body; and a holder having a penetrating connection shaft at its lower surface, the penetrating connection shaft capable of being inserted through the main body through hole and the shield through hole from the outside of the helmet main body and connecting the shield to the helmet main body so as to be rotated vertically.

Abstract: A helmet is provided including an attachable and detachable shield plate by a simple structure. The helmet includes a helmet main body; a first plate positioned onto an outer surface of the helmet main body; a second plate structurally combined with the first plate and capable of sliding between a locking position and an unlocking position with respect to the first plate; a spring for pressurizing the second plate toward the locking position; and a shield plate capable of rotating with respect to the helmet main body and attachably and detachably installed on the first plate by the slide movement.

Abstract: Provided is a helmet including a half helmet-shaped helmet main body including a main body through hole at each side thereof; a shield that is rotated vertically at a front side of the helmet main body and inserted into the helmet main body and has a through hole at each end thereof so as to be detachably connected to the helmet main body; and a holder having a penetrating connection shaft at its lower surface, the penetrating connection shaft capable of being inserted through the main body through hole and the shield through hole from the outside of the helmet main body and connecting the shield to the helmet main body so as to be rotated vertically.

Abstract: A helmet with a voice-activated route guidance system includes a voice receiving unit for receiving a voice signal from a helmet user; a voice recognition unit for acquiring destination information of the user by analyzing the received voice signal; a positioning unit for searching a current position of the helmet user; a route setting unit for setting a route from the current position of the helmet user to a destination; a voice signal generation unit for generating a route guidance voice signal including information for guiding the helmet user to the set route; and a sound output unit for outputting the generated route guidance voice signal.

Abstract: There is provided a helmet including an attachable and detachable shield plate by a simple structure. The helmet includes a helmet main body; a first plate positioned onto an outer surface of the helmet main body; a second plate structurally combined with the first plate and capable of sliding between a locking position and an unlocking position with respect to the first plate; a spring for pressurizing the second plate toward the locking position; and a shield plate capable of rotating with respect to the helmet main body and attachably and detachably installed on the first plate by the slide movement.

Abstract: A device for opening-closing sun visor of a helmet is disclosed. The device comprises a helmet body 10 provided in front with an opening portion 11 for the face and having a pair of hinge shafts 12 protruded on both the left and right sides, a sun visor 20 having a visor portion 21 placed on the side of the opening portion 11 of the helmet body 10, extending portions 22 extended to the left and right sides of the visor portion 21, and hinge slots 23 formed at the ends of the extending portions 22; and an opening-closing mechanism 30 having a slider 31 connected to the top center of the visor portion 21 of the sun visor 20, a guide rail 32 which is attached to the ceiling of the helmet body 10, and a guide holder 35 which is attached lengthwise to the top center of the helmet body.

Abstract: There is provided an apparatus for opening/closing a chin protection bar installed in a helmet cap having a front opening, the apparatus including: a fixing unit which is fixed to the helmet cap and includes a movable shaft guide having an elongated hole shape and a pivoting guide formed approximately vertical to the movable shaft guide; and a pivoting unit which is fixed to the chin protection bar and includes a first connecting unit slidably inserted into the movable shaft guide and a second connecting unit slidably inserted into the pivoting guide, wherein the pivoting guide has a straight line shape, and the second connecting unit moves back and forth in a straight line in the pivoting guide and the first connecting unit moves back and forth in a straight line in the movable shaft guide according to the straight-line back-and-forth movement of the second connecting unit.

Abstract: The present disclosure relates to a safety helmet; and, more particularly, to a safety helmet having an extended sun visor capable of preventing light from entering directly into eyes of a helmet wearer. A safety helmet includes a cap having a front opening portion; a sun visor fixed on the cap to be protruded from an upper portion of the front opening portion toward the front; and an extended member located on a front end portion of the sun visor to pivot about the sun visor.

Abstract: A device for opening-closing jaw guard of a helmet is disclosed. The device has a hinge means 400 comprising fixed plates 410 which are fixed on both the left and right sides of the helmet body 1 and each of which has a long hole 411, operating plates 420 which are fixed on the inside of the left and right extending portions 4a of the jaw guard 4 and each of which has an arc-shaped internal gear 421, a planetary gear 430 which is engaged with the internal gear 421 of the operating plate 420, and has a protuberance 431 formed on either side, and a cutaway portion 432 formed on the outer circumference; and a pivoting lever 440 which has a shaft protuberance 441 of front end inserted into the cutaway portion 432 of the planetary gear 430 and a penetration hole 442 of rear end inserted into the main boss 423 of the operating plate 420.

Abstract: A device for opening-closing jaw guard of a helmet is disclosed. The device has a hinge means 400 comprising fixed plates 410 which are fixed on both the left and right sides of the helmet body 1 and each of which has a long hole 411, operating plates 420 which are fixed on the inside of the left and right extending portions 4a of the jaw guard 4 and each of which has an arc-shaped internal gear 421, a planetary gear 430 which is engaged with the internal gear 421 of the operating plate 420, and has a protuberance 431 formed on either side, and a cutaway portion 432 formed on the outer circumference; and a pivoting lever 440 which has a shaft protuberance 441 of front end inserted into the cutaway portion 432 of the planetary gear 430 and a penetration hole 442 of rear end inserted into the main boss 423 of the operating plate 420.

Abstract: A device for opening-closing sun visor of a helmet is disclosed. The device comprises a helmet body 10 provided in front with an opening portion 11 for the face and having a pair of hinge shafts 12 protruded on both the left and right sides, a sun visor 20 having a visor portion 21 placed on the side of the opening portion 11 of the helmet body 10, extending portions 22 extended to the left and right sides of the visor portion 21, and hinge slots 23 formed at the ends of the extending portions 22; and an opening-closing mechanism 30 having a slider 31 connected to the top center of the visor portion 21 of the sun visor 20, a guide rail 32 which is attached to the ceiling of the helmet body 10, and a guide holder 35 which is attached lengthwise to the top center of the helmet body.

Abstract: A motorcycle helmet having a jaw guard, shield and visor, all of which can be pivoted with one hinge point, is disclosed. The helmet comprises a helmet body 10, a jaw guard 20 which protects the jaw of the wearer by covering part of said opening 11 of said helmet body 10, a shield 30 which opens and closes the remaining part of said opening 11 above said jaw guard 20, a visor 40 which intercepts sunlight incoming into part of said opening 11 in said helmet body 10, and a fastening screw 50 which is screwed to pivot holes 12 on both left and right sides of said helmet body 10 so as to pivotably move all of the hinge portion 22 of said jaw guard 20, the latch pivot portion 32 of said shield 30, and the lever mechanisms 42 of said visor 40 by making pivot holes 12 as a hinge point.

Abstract: A helmet having a removable jaw guard is disclosed. In the helmet having a removable jaw guard, the locking means comprises a pair of left and right locking brackets 510 attached symmetrically to both insides of the helmet body 1 and having locking bars 511 respectively, latches 520 on both the left and right sides engaged with the locking bars 511 of the locking brackets 510, latch plates 530 on which the latches 520 are fitted rotatably at a predetermined angle by a pivot 522, a return spring 540 of which one end is connected to the upper end of the latch 520 and the other end is connected to the latch plate 530, a connecting bar 550 in which the extending portions 551 of both ends are connected to the ends of latches 520, and an unlock lever 570 to pull the middle of the connecting bar 550 forward.

Abstract: A self-generating type light emitting device for helmet, in which a small generator is operated by wind power generated during driving, the electricity generated by this generator lights light-emitting diodes fitted on the helmet so as to enhance driving safety and impart a decorative effect, is disclosed. The self-generating type light emitting device for a helmet comprises a case 20 having a mounting portion 21, and a protruding portion 22 to provide a predetermined mounting space inside of the case 20; an electricity generating means 30 having a generator 33 fixed by a bracket 34 on the inside of the protruding portion 21 of the case 20, and a rotary blade 31 fixed at the front end of the shaft 32 of the generator 33; and a light-emitting means 40 having a plurality of light-emitting lamps 41 which are lighted by electricity generated from the generator 33.

Abstract: The present invention relates to a shield mounting device for a helmet shield in which a helmet shield can be easily assembled and disassembled to/from a helmet body. The shield mounting device for a helmet comprises a mounting protrusion having a flange at an edge thereof; a mounting plate having an arc shaped groove capable of guiding an operation that the flange is inserted and rotated; a base plate having an elastic piece elastically moving in a direction that an external force is applied when the external force is applied to the mounting protrusion; and a locker having an escape prevention for preventing an escape of the mounting protrusion.