Original Publication Date: 1985-Dec-01
Included in the Prior Art Database: 2005-Feb-19
In the apparatus shown above, a carriage lock prevents a recording head carriage assembly in a disk drive from moving when there is no power applied to the carriage drive coil. This prevents damage to the disk file heads and/or disks. The carriage lock is a bimetal strip and heating element. The main elements of the carriage lock are housing 1, bimetal strip 2 with interposer tip 3 and flexible heating element 4. Housing 1 is made of a high heat-resistant and nonconductive plastic, such as glass-filled phenolic, so that it will absorb as little heat as possible, minimize conduction of heat to other parts, and lose heat it absorbs as quickly as possible. Bimetal strip 2 consists of a commercially available bimetal, i.e.