Adjustment mechanism for a headband arrangement of a safety helmet
US9572392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B1/22
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An adjustment mechanism for a headband arrangement having a headband member with a notched track positioned on an end thereof, the adjustment mechanism including: a rotatable knob having a first contact member and a second contact member; and a rotatable hub member having a gear portion with teeth to engage the notched track of the headband member, such that rotation of the hub member in a first direction causes the headband member to tighten and rotation of the hub member in a second direction causes the headband member to loosen; wherein, upon rotation of the knob in the first direction, contact between the first contact member and the hub member causes the hub member to rotate in the first direction, and upon rotation of the knob in the second direction, contact between the second contact member and the hub member causes the hub member to rotate in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.