Cartridge door-latching mechanism
US4744530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Sep 12, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Door-latching mechanism for a molded plastic cartridge includes a plastic arm projecting from a wall of the cartridge and acting as a cantilevered spring. At the free end of the arm are a door-locking pawl which locks the door when the spring is at rest and unlocks the door when the spring is flexed. When the cartridge is a VHS or Betamax videocassette, upon inserting it into a recorder, a finger of the recorder depresses the arm and with it the door-locking pawl, thus unlocking the pawl and allowing the door to be opened. The arm may either be integral with the cartridge or molded as a separate plastic piece to be attached to the cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.