Safety helmet with adjustment of the device for securing it on the head
US5373588A · kind A · utility
28Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Feb 18, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/145
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A safety helmet with a crown comprises a head-band with a strip adjustable by means of a first mechanism with inverter pinion cooperating with a first crown-wheel and a second crown-wheel located at the two opposite ends of the strip. An operating ring is accessible from outside to perform adjustment with one hand when the helmet is on the user's head. The double crown-wheel is arranged on the side of the crown and enables perfect centering to be achieved regardless of the size of the head-band. Application: potholing, mountaineering, construction sites, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.