Helmet having removable jaw guard

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.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a helmet having a removable jaw guard, and more specifically to a helmet having a removable jaw guard in which the locking mechanism of the jaw guard is improved so that open / close operation is further facilitated and the helmet can be taken off without damage in case of emergency. [0003] 2. Description of the Related Art [0004] In general, motorcycle riders must wear a safety helmet to protect the head and the front of helmet should have a shield installed to prevent sight obstruction and breathing difficulty due to the wind blowing from front during driving. In such helmets, there is such a kind of helmet of which the jaw guard can be opened and closed. [0005] In order to open and close the jaw guard in such a helmet, it needs a hinge mechanism as well as a locking mechanism for keeping it closed. [0006] As a conventional helmet provided with such devices, there is a patent describ...

AI Technical Summary

Benefits of technology

The present invention provides a helmet with a removable jaw guard that can be easily taken off without breaking the helmet in case of emergency. The helmet has a hinge mechanism and a locking mechanism for maintaining the locking condition. The locking mechanism includes a pair of left and right locking brackets, latches, latch plates, a return spring, a connecting bar, and an unlock lever. The hook of the latch rotates within a predetermined range of angle around the pivot, and rotates upward in the direction of the jaw guard during unlocking. The hinge means includes hinge holes, hooking protuberances, support holes, and a screw shaft inserted into the hinge holes to maintain open condition. The technical effects of the invention are that it provides a convenient and safe way to remove the jaw guard in case of emergency, and ensures the helmet remains secure and stable during use.

Problems solved by technology

But in the jaw guard of the above patent, opening is possible after the locked slider F520 is completely off the locking slot F511, and because the direction of the slider F520 breaking away does not correspond to the direction of opening the jaw guard, it has a drawback that locking is not released unless the unlock lever F570 is operated all the way to the end.

Such a drawback has a problem that the helmet cannot be taken off the wearer unless the helmet is broken in case of accident.

Also, the conventional jaw guard is manufactured with a certain amount of weight to ensure sufficient durability, so sometimes opening cannot be maintained by the hooking mechanism alone for control of pivot angle when it was rotated upward, necessitating additionally a stop means at the position opened and lifted to the maximum.

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