Structure for preventing gear slippage in optical disk drive

Abstract

The invention relates to a disc machine anti-jumping structure which comprises an elastic deflecting part supporting frame, a connecting seat which is connected with one end of the supporting frame, a tine holder with a plurality of tine rods which is connected with the other end of the supporting frame and a space limit spring. The space limit spring comprises a main body spring to connect with a braking member; the top supporter of the main body spring and the braking member are between the connecting seat and the tine holder and keeps a gap. The tine rod of the space limit spring top tine seat is contacted with the screw groove of the screw rod.

Description

technical field [0001] The invention relates to a structure for preventing tooth jumping of an optical disc drive, in particular to a structure for preventing tooth jumping in which a rack of a read head in the optical disc drive maintains proper engagement with a transmission screw so that the read head can move quickly to read and write data accurately. Background technique [0002] The capacity of the current optical disc is increasing, but the optical disc still maintains the original size of 12 cm in diameter, so that the distance between the data recording positions of the optical disc is also rapidly reduced. Therefore, whether the optical disc drive can correctly read and write data on the optical disc depends on the rapid movement of the read head to accurately align the recording position of the optical disc data. [0003] As shown in Figure 1, in the known drive mechanism 10 of the read / write head of an optical disc drive, the read head 11 is arranged on the conne...

AI Technical Summary

Problems solved by technology

Although the rigid plate 22 prevents the gear seat 23 from shrinking back and continues to deform, preventing the protruding teeth 24 from popping off the screw rod 25, but the reading head is quite precise, and the moving speed of searching for data is quite fast. Too much weight increase will affect the balance and cause vibration. The response time of the drive will be delayed, and the internal servo control of the optical disc drive must be used to avoid errors in reading and writing data by the optical drive, thus increasing the complexity of the servo control

In addition, the installation space of the drive mechanism of the reading head is limited and the volume is small, so it is difficult to install the board, and the installation of the board will also increase the cost of parts and assembly

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