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Lightweight rigid compact configuration for the voice coil carriage and printed circuit cable in a disc drive
Lightweight rigid compact configuration for the voice coil carriage and printed circuit cable in a disc drive
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机译:轻巧,坚固,紧凑的配置,用于磁盘驱动器中的音圈支架和印刷电路电缆
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摘要
The carriage assembly (22) of this invention includes an oval coil (34) whose shape is maintained by a rectangular bobbin (361 which is passed through the open sides of the rectangular carriage frame (24,26,28,30) and fastened inside the carriage frame so that the ends of the coil protrude from the carriage Frame and define symmetrical semi-cylindrical openings on either side of the carriage for cooperation with the magnetic pole pieces (50,52) of the voice coil motor. The transducers are mounted to arms (84) which fit into precision machined sIots (731 in a head mounting block (70) mounted on the front of the rectangular carriage. The connector cable to the transducers is a printed circuit cable (PCC) that passes directly through the hottom portion of the carriage and lies flat along the path of travel of the carriage between the voice coil motor segments which define the movement of the carriage. A support bracket (60) mounted to the rear of the path of travel of the carriage supports a portion (661 of the PCC and causes it to loop back upon itself as the carriage (22) moves toward the rear of the path of travel. The rear of the carriage is open (67), so that the upper portion of the folded PCC cable loop reaches into the carriage as the carriage reaches the rear of its path of travel, minimizing the space the carriage/PCC assembly will occupy.
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