CPC A42B 3/145 (2013.01) | 20 Claims |
1. A ratchet mechanism for a hard hat, the ratchet mechanism comprising:
a knob with a plurality of knob protrusions, wherein the plurality of knob protrusions comprises four knob protrusions that are positioned 90 degrees from one another;
a ratchet gear, the ratchet gear comprising a plurality of teeth engagement mechanisms, each teeth engagement mechanism comprising a hooking mechanism and a tooth protrusion, wherein each hooking mechanism is configured to engage with one of the plurality of knob protrusions; and
a band housing configured to allow a band to ratchetably move within the band housing, the band housing comprising a knob engagement protrusion and a ratchet gear aperture configured with one or more teeth surrounding the ratchet gear aperture, the teeth defining a ramped surface,
wherein the ratchet gear is disposed on the knob engagement protrusion and the ratchet gear further comprises one or more ratchet gear teeth configured to engage with a set of band teeth on the band, such that a rotation of the ratchet gear tightens or loosens the band during operation.
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