Ring band adjustment structure of crash helmet

Apparel – Guard or protector – For wearer's head

Reexamination Certificate

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Details

C002S183000

Reexamination Certificate

active

06332227

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a ring band adjustment structure of a crash helmet and, more particularly, to a locating structure, whereby the diameter of a ring band can be appropriately adjusted according to the head size of a user.
BACKGROUND OF THE INVENTION
It is necessary to wear a crash helmet when riding a bicycle or a motorcycle. A ring band is provided in the crash helmet to be located and matched at the brow of a user. If the ring band is not an adjustable structure, it cannot apply to people having different sizes of heads. An adjustable ring band has been proposed, which has a connection seat and a cover body connected to two ends of the ring band. Although it has a hidden adjustment structure, because the connection seat needs to be fixedly joined with the cover body, a joining structure between them must be provided. Because the cover body is used to cover the connection seat, the main body of the connection seat and the main body of the cover body must have the same size. Therefore, some material is wasted. Moreover, the two ends of the ring band are locked at connection posts of an adjustment seat of the connection seat via through holes. The fixing effect of this kind of joining is not good so that other processing procedures must be matched, e.g., riveting the connection posts at the ring band. Therefore, the production cost is increased, and the manufacturing and assembling time is also increased. Additionally, the locating of a prior art adjuster can only be controlled by sense, resulting in inconvenient use. The present invention aims to resolve the above problems in the prior art.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a ring band adjustment structure of a crash helmet, whereby two ends of the ring band can be easily joined with a locating adjuster, and the shifting and locating process of the locating adjuster is clearly visible so that adjustment can be performed in visual way. Moreover, because the two ends of the ring band are made of resilient locking structure, the assembling speed of the ring band with the locating adjuster will be faster. It is not necessary to use other auxiliary means, and the assembling and locating are more accurate. More importantly, the locating adjuster can be limited to only move within a certain range. Tail ends of a guide bar are used to limit distal ends of motion of the locating adjuster. The locating adjuster is joined with the guide bar in straddle way so that the locating adjuster can slide on the guide bar for locating. The required components are more compact, and the adjustment is more convenient.


REFERENCES:
patent: 6219851 (2001-04-01), Fang

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