Adjustment mechanism for adjusting length of a headband
US11185120B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2020 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Aug 1, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2187
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An adjustment mechanism for allowing a user to adjust a length of a headband includes a stationary case, a clutch, and a knob. The stationary case defines an opening and a circular recess. The clutch includes a cam arranged within the circular recess and a pinion extending axially from the cam such that the pinion is positioned outside the case via the opening to engage with the headband. The clutch also includes a roller located adjacent to a first cam portion of the cam. The knob has an actuating element arranged between the roller and a tab of the cam. The knob is rotatable in a first direction for allowing the user to shorten the length of the headband. The knob is rotatable in a second direction allowing the user to increase the length of the headband.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.