Restricted ball and socket joint for headset earcup
US9838776B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Oct 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2410/05
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A ball and socket joint preventing rotation of the ball about the axis of radial symmetry of the socket and restricting rotation of the ball about both axes orthogonal to the axis of radial symmetry to a predetermined angular value. The ball is irregular in shape and has grooves that receive ridges in the socket to accomplish the axial rotational restriction. The interaction of socket shape with ball shape accomplishes the rotational restrictions about the orthogonal axes. An exemplary use is for joining headset ear cups to headset side pieces to provide flexibility to accommodate a wide range of head shapes and sizes. The ball is preferably made of one piece with the headset side pieces and the socket is preferably made of one piece with the shell of the ear cup. Embodiments for head-mounted headsets and helmet-mounted headsets are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.