Helmets
US5329642A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Sep 25, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/222
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A helmet having a visor mounted on pivot posts fixed to the helmet shell includes a visor driving and latching mechanism which acts both to allow the wearer to move the visor between its lowered and raised positions and also to hold the visor in either position. The mechanism has an operating lever which is pivoted to the visor at a point spaced from the pivot post. The operating lever has a slightly elongated aperture which receives the pivot post, and a hollowed out portion which receives a cam fixed relative to the pivot post. The operating lever has a first tooth which engages a first recess in the cam to hold the visor in its lowered position, and a second tooth which engages in a second recess in the cam to hold the visor in its raised position. To move the visor from its lowered to its raised position, the wearer manually rotates the operating lever in the appropriate direction. Initial rotation of the operating lever about its pivotal connection to the visor withdraws the first tooth from the first recess to release the visor. Further rotation of the operating lever rotates the visor about the pivot post until the second tooth reaches the second recess, whereupon the operat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.