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Self-locking double retention redundant pull pin release
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1987 |
| Description | A double-retention redundant pull pin release system is disclosed. The system responds to a single pull during an intentional release operation. A spiral-threaded main pin is seated in a mating bore in a housing, which main pin has a flange fastened thereon at the part of the main pin which is exterior to the housing. Accidental release tends to rotate the main pin. A secondary pin passes through a slightly oversized opening in the flange and is seated in a second bore in the housing. The pins counteract against one another to prevent accidental release. A frictional lock is shared between the main and secondary pins to enhance further locking of the system. The secondary pin, in response to a first pull, is fully retracted from its bore and flange hole. Thereafter the pull causes the main pin to rotate free of the housing to release, for example, a parachute mechanism. |
| File Size | 503027 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080005920 |
| Archival Resource Key | ark:/13960/t7bs3pd30 |
| Language | English |
| Publisher Date | 1987-11-03 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Cavities Patents Pins Locking Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
