Disengageable helmet visor clamp
US4199823A · kind A · utility
21Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1977 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Nov 23, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/228
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The mounting for a visor of a helmet comprises an arcuate track located at the side of the rigid headshell and centered on the visor axis, a shoe connected with the visor and movable along the track, a control element for moving the shoe and hence the visor and means for clamping the shoe to the track. Initial movement of the control element relative to the shoe serves to release the clamping means which may comprise rollers wedging between inclined surfaces of the shoe and the opposing track surface. The visor can be replaced by other helmet borne equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.