In-rigger of a carriage assembly that prevents rotation of the carriage assembly

A carriage assembly for carrying read/write heads into engagement with a recording medium and for mounting on a central guide track of a disk drive, the disk drive being of the type that has a magnet for moving the carriage assembly said carriage assembly, comprising:

• a carriage body that has a passage through which the central guide track extends when the carriage assembly is inserted into the disk drive;
• a first in-rigger extending laterally from the carriage body;
• a second in-rigger extending laterally from the carriage body below the first in-rigger, the first and the second in-riggers each having an inner surface from which a protrusion extends, each of the protrusions being disposed proximal to the magnet when the carriage assembly is mounted within the disk drive, the carriage assembly being mountable in the disk drive so that the central guide track extends through the passage, and the carriage assembly is free to rotate about the central guide track, one of the protrusions contacting the magnet when the central guide track rotates in a first direction about the central guide track to prevent further rotation of the carriage assembly in the first direction and the other of the protrusions contacting the magnet when the central guide track rotates in a second direction about the central guide track to prevent further rotation of the carriage assembly about the central guide track in the second direction, the first and the second in-riggers thereby preventing any significant rotation of the carriage assembly about the central guide track;
• and
• a coil coupled to an outer surface of the first in-rigger and an outer surface of the second in-rigger, the coil cooperating with the magnet to move the carriage assembly.

A disk drive of the type that can receive a removable data storage medium and that has a central guide track and a magnet, comprising:

• a carriage body that has a passage through which the central guide track extends when the carriage assembly is inserted into the disk drive;
• a first in-rigger extending laterally from the carriage body;
• a second in-rigger extending laterally from the carriage body below the first in-rigger, the first and the second in-riggers each having an inner surface from which a protrusion extends, each of the protrusions being disposed proximal to the magnet when the carriage assembly is mounted within the disk drive, the carriage assembly being mountable in the disk drive so that the central guide track extends through the passage and the carriage assembly is free to rotate about the central guide track, one of the protrusions contacting the magnet when the central guide track rotates in a first direction about the central guide track to prevent further rotation of the carriage assembly in the first direction and the other of the protrusions contacting the magnet when the central guide track rotates in a second direction about the central guide track to prevent further rotation of the carriage assembly about the central guide track in the second direction, the first and the second in-riggers thereby preventing any significant rotation of the carriage assembly about the central guide track;
• and
• a coil coupled to an outer surface of the first in-rigger and an outer surface of the second in-rigger, the coil cooperating with the magnet to move the carriage assembly.