CN210925480U - Accurate positioning optical disk manipulator and storage device - Google Patents

Abstract

The utility model relates to an optical storage equipment technical field, more specifically relates to a CD manipulator and storage device of accurate positioning, this CD manipulator of accurate positioning includes: first actuating mechanism, second actuating mechanism, finger support, push away set finger, propelling movement locator, finger support mounting is on first actuating mechanism, and first actuating mechanism is used for driving finger support rotation, second actuating mechanism and push away set finger are installed in finger support, and second actuating mechanism is used for driving push away set finger and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger promoted forward is the assigned direction. The utility model discloses occupation space is little, can accurate access CD.

Description

Accurate positioning optical disk manipulator and storage device

Technical Field

The utility model relates to an optical storage equipment technical field, more specifically relates to a CD manipulator and storage device of accurate location.

Background

With the further development of the digitization industry, the utilization rate of data storage devices is gradually increased. Optical storage, which is capable of storing data safely, at low cost, for long periods of time, is becoming increasingly popular. Compared with the expensive price, complex maintenance and high environmental requirement of hard disk storage, the cost of using optical disk storage is lower, and the stored data is safer and more stable. Because the optical disk storage does not need to rotate continuously like a hard disk, the energy consumption is lower, and because the structure of the optical disk determines that the optical disk has longer service life than the hard disk, the optical disk can be used for 50 years or even longer, and does not need to be replaced frequently. With the development of error correction technology, the reliability of data stored in the optical disc is greatly improved. Because the data stored in the optical disc is recorded on the metal film of the disc by the purely physical metal ablation technology, the process is irreversible, so that the data cannot be tampered, and the stability of the data is ensured on the physical level. The hard disk and the magnetic tape become fragile if they are exposed to water or in a humid environment, and the optical disk is not affected by these influences, and data can be normally read even in an office environment at a temperature higher than 35 ℃.

Optical storage, which has such many advantages, is increasingly used in storage. The optical disc library is an optical, mechanical and electronic integrated mass data storage device which takes a standardized optical disc as a data storage medium and is used for storing data information for a long time or permanently, so the optical disc library is widely applied to long-term archiving and storing of data. However, the ever increasing amount of data to be archived places ever increasing demands on the optical disc library equipment, and the existing manipulators, while still being able to achieve the basic functions of optical disc access, are still not perfect. First, in the existing optical disc library product, a mechanical hand is generally installed at one side of the optical disc library, and an optical disc in a disc cartridge in the optical disc library is taken out by the mechanical hand and then put into an optical drive to perform a read-write operation. The design of installing the manipulator at one side of the optical disc library realizes the expected functions of the optical disc library product, but the manipulator needs to occupy a small space due to the action requirement of the manipulator, so that the volume of the whole optical storage device is increased, and the applicable field is limited. Then, the operation of the robot is relatively complicated, and the accuracy and safety of the optical storage are insufficient. Finally, because the position of the optical drive in the optical disk library is fixed, once the conditions of loosening of the optical drive fixing screw or deformation of the optical drive fixing support and the like occur, the position of the optical drive can be changed, so that the manipulator can not accurately place and take the optical disk, and even the optical disk or the equipment is damaged. Once the damage of the optical disc or the device occurs, the data disaster occurs, which must cause immeasurable loss. These design deficiencies are likely to result in serious, if not insignificant, fruit cachets. Therefore, there is a need for a disk handler and a storage device that occupy a small space and can accurately access a disk.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides an accurate CD manipulator and storage device who fixes a position, this CD manipulator and storage device occupation space are little, can accurate access CD.

The utility model adopts the technical proposal that:

an accurate positioning optical disc manipulator comprising: first actuating mechanism, second actuating mechanism, finger support, push away set finger, propelling movement locator, finger support mounting is on first actuating mechanism, and first actuating mechanism is used for driving finger support rotation, second actuating mechanism and push away set finger are installed in finger support, and second actuating mechanism is used for driving push away set finger and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger promoted forward is the assigned direction.

Specifically, the first driving mechanism drives the finger support to rotate, the push disc finger rotates along with the finger support, when the push positioner detects that the forward pushing direction of the push disc finger is the designated direction, the corresponding control signal is fed back to stop the rotation of the first driving mechanism, and the second driving mechanism drives the push disc finger to push the optical disc forward, so that the optical storage device can access the optical disc.

Further, the push positioner includes: the device comprises an induction boss, a boss frame and a reflection type sensor, wherein the boss frame fixes the induction boss beside a finger support, and the induction boss is provided with a linear signal groove; the reflective sensor is arranged on the finger support; after the finger support rotates for a certain angle, light projected by the reflective sensor passes through the linear signal groove, and the direction pointed by the fingers of the push disc is the designated direction.

Specifically, the boss frame fixes the response boss beside the finger support, has the linear signal recess, and the width of linear signal recess just in time can be through the light of reflective sensor projection. The reflective sensor is installed on the finger support, and when first actuating mechanism drive finger support rotated, the reflective sensor rotated along with finger support, after finger support rotated certain angle, the direction that the reflective sensor throwed light pointed at preset direction, and light passes linear signal recess, and simultaneously, the direction that the pushing plate finger pointed also is preset direction.

Further, the boss frame comprises stand columns and an arc-shaped platform, and the arc-shaped platform is supported by the two stand columns.

Specifically, the radian of the arc-shaped platform is used for better adjusting the positioning angle, and the two stand columns are used as a supporting structure to enable the operation of other devices arranged beside the arc-shaped platform to be unaffected.

Further, a plurality of the induction bosses are arranged on the arc-shaped platform in a stacked mode.

Specifically, when the finger support rotates by a certain angle to reach a preset position, the push disc fingers point to a preset direction, and light projected by the reflective sensor penetrates through the linear signal groove. The recess setting of response boss corresponds the direction of predetermineeing of pushing away set finger, if the place of predetermineeing is many and the angle is little, and the recess just need set up very densely like this. The grooves are positioned in the middle of the induction bosses, and if the induction bosses are arranged in parallel, the induction bosses are small and have different sizes in order to adapt to the dense arrangement of the grooves. The manufacturing requirement is high, and manufacturing cost is expensive like this, and this scheme adopts range upon range of mode, and the arc platform is according to the position of setting for with the intensive recess setting of adaptation with the range upon range of article style of calligraphy.

Furthermore, the direction of the light projected by the reflective sensor and the direction pointed by the fingers of the push disc are positioned on the same vertical plane.

Specifically, the direction of the light projected by the reflective sensor is opposite to the direction pointed by the push disc fingers, the reflective sensor is positioned on the same vertical plane, and the position of the induction boss is arranged according to the direction pointed by the push disc fingers. When the light projected by the reflective sensor passes through the groove of the sensing boss, the fingers of the pushing disc point to the direction to be pointed.

Further, comprising: the optical disc detector is a laser sensor and is arranged on the finger support; the direction of the light projected by the optical disk detector, the direction of the light projected by the reflective sensor and the pushing direction of the push disk finger are positioned on the same vertical plane.

Specifically, the optical disc detector is added to the manipulator, the optical disc detector is a laser sensor, the laser sensor rotates along with the finger support to reach a target position and is static, whether an optical disc exists in the pushing direction of the pushing fingers or not is detected according to a laser projection feedback signal, if yes, the second driving mechanism drives the pushing fingers to perform pushing movement, if not, the pushing fingers are prevented from performing idle pushing movement, and accuracy and safety of optical storage are improved.

Further, comprising: the first driving mechanism is positioned in the fixing frame, and an output shaft of the first driving mechanism penetrates through the top of the fixing frame to be connected with the finger support; the upper surface at fixed bolster top has the spacing post, and after first actuating mechanism drive finger support rotated certain angle, finger support and spacing post counterbalance.

Specifically, increase spacing post and restrict the manipulator at certain angle within range internal rotation, the angle scope of rotation covers the whole optical drive of carousel outside installation can. The maximum swing range of the finger support is limited, and the phenomenon that the rotation angle of the finger support is too large to cause the stretching damage of the circuit of the related device of the manipulator can be prevented.

An accurately positioned optical disc storage device, comprising: the CD-ROM drive is arranged beside the CD-ROM box, the manipulator is arranged at the circle center of the CD-ROM box, and the manipulator comprises: first actuating mechanism, second actuating mechanism, finger support, push away set finger, propelling movement locator, finger support mounting is on first actuating mechanism, and first actuating mechanism is used for driving finger support rotation, second actuating mechanism and push away set finger are installed in finger support, and second actuating mechanism is used for driving push away set finger and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger promoted forward is just to CD ROM drive mouth of CD ROM read/write.

In particular, the existing mechanical arm is generally disposed at one side of the optical disc cartridge, and such a design results in a large space occupied by the mechanical arm, which results in a considerable increase in the volume of the entire optical storage device. In order to overcome the problem of large occupied space of the manipulator, the scheme adopts the rotating disc type optical disc box, and the manipulator is arranged at the center of the optical disc library, so that the occupied space of the manipulator is reduced, various functions of the optical disc library are reserved, and meanwhile, enough optical discs are ensured to be used for data storage. The manipulator can still realize various functions of the optical disc library in a limited space. Meanwhile, a pushing positioner is added to the manipulator, so that pushing of the disc pushing fingers can be accurately aligned to the direction of the CD driver opening, the CD can be quickly and accurately fed into the CD driver, and the response speed and the control precision of the CD storage device are improved. And the push positioner is convenient to install and implement, and the cost is not high.

Further, the push positioner includes: the device comprises an induction boss, a boss frame and a reflection type sensor, wherein the boss frame fixes the induction boss beside a finger support, the induction boss is provided with linear signal grooves, and the number of the grooves is the same as that of the optical disk read/write optical drives and corresponds to that of the optical disk read/write optical drives one by one; the reflective sensor is arranged on the finger support; after the finger support rotates for a certain angle, the light projected by the reflective sensor passes through the linear signal groove, and the direction pointed by the disc pushing finger is over against the CD driver port of the CD read/write driver.

Specifically, the optical disc storage device of the scheme is provided with a plurality of optical disc read/write drivers and a plurality of linear signal grooves, wherein the optical disc read/write drivers correspond to the induction bosses one by one. When the finger support rotates for a certain angle, the reflection type sensor projects light rays to penetrate through the linear signal groove of the sensing boss, and meanwhile, the direction pointed by the disc pushing finger is over against the CD driver opening of the CD read/write driver corresponding to the sensing boss.

Further, the boss frame includes stand and arc platform, and is a plurality of response boss range upon range of on the arc platform, the arc platform is supported by two stands, the finger support is less than the arc platform and is located between two stands.

Specifically, the radian of the arc platform adapts to the inner radian of the optical disk box and the positioning angle is better adjusted, the height of the arc platform does not influence the operation of the first driving mechanism, the second driving mechanism, the finger support and the pushing disc finger, and the finger support is positioned between the two upright posts, so that the support structure of the arc platform cannot block the rotation of the finger support.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the limiting column structure is added, the maximum swing range of the finger support is limited by the manipulator, and the phenomenon that the rotation angle of the finger support is too large to cause the stretching damage of the circuit of the related device of the manipulator can be prevented.

(2) The CD detector detects whether the CD exists in the CD box slot, and improves the reliability and the practicability of the CD storage device.

(3) The push positioner is added, so that the push of the push disc fingers can be accurately aligned to the direction of the CD driver opening, the CD can be quickly and accurately fed into the CD driver, and the response speed and the control precision of the CD storage device are improved.

Drawings

Fig. 1 is a schematic view of a manipulator of the present invention;

FIG. 2 is a schematic diagram of an optical disc storage apparatus according to the present invention;

in the figure: 1-a first driving mechanism, 2-a second driving mechanism, 3-a finger support, 4-a pushing disc finger, 5-a fixing frame, 6-a limiting column, 11-a reflection type sensor, 12-an induction boss, 13-an optical disc read/write driver, 14-an optical disc box, 15-a mechanical arm, 16-an upright column, 17-an arc platform and 21-an optical disc detector.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Examples

This embodiment provides an optical disc manipulator of accurate location, and fig. 1 is the utility model discloses a manipulator schematic diagram, fig. 2 are the utility model discloses an optical disc storage device schematic diagram, as shown in the figure, include: first actuating mechanism 1, second actuating mechanism 2, finger support 3, push away set finger 4, propelling movement locator, finger support 3 installs on first actuating mechanism 1, and first actuating mechanism 1 is used for driving finger support 3 and rotates, second actuating mechanism 2 and push away set finger 4 install in finger support 3, and second actuating mechanism 2 is used for driving push away set finger 4 and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger 4 promoted forward is the assigned direction.

Specifically, the first driving mechanism 1 drives the finger holder 3 to rotate, the tray pushing finger 4 rotates with the finger holder 3, when the push positioner detects that the forward pushing direction of the tray pushing finger 4 is the designated direction, a corresponding control signal is fed back to stop the rotation of the first driving mechanism 1, and the second driving mechanism 2 drives the tray pushing finger 4 to push the optical disc forward, so that the optical storage device can access the optical disc.

Further, the push positioner includes: the device comprises an induction boss 12, a boss frame and a reflection type sensor 11, wherein the boss frame fixes the induction boss 12 beside a finger support 3, and the induction boss 12 is provided with a linear signal groove; the reflective sensor 11 is arranged on the finger support 3; after the finger support 3 rotates for a certain angle, the light projected by the reflective sensor 11 passes through the linear signal groove, and the direction pointed by the push disc finger 4 is the designated direction.

Specifically, the boss base fixes the sensing boss 12 beside the finger rest 3, and has a linear signal groove, and the width of the linear signal groove is just right capable of passing through the light projected by the reflective sensor 11. Reflective sensor 11 installs on finger support 3, and when first actuating mechanism 1 drive finger support 3 rotated, reflective sensor 11 rotated along with finger support 3, and after finger support 3 rotated certain angle, reflective sensor 11 projected the direction of light and pointed the predetermined direction, and light passes linear signal recess, and simultaneously, the direction that push away set finger 4 pointed also is predetermined direction.

Further, the boss rack comprises upright posts 16 and an arc-shaped platform 17, and the arc-shaped platform 17 is supported by the two upright posts 16.

In particular, the curvature of the arched platform 17 is used to better adjust the positioning angle, and the two uprights 16 act as support structures to keep the operation of other devices arranged beside the arched platform 17 unaffected.

Further, a plurality of the induction bosses 12 are stacked on the arc platform 17.

Specifically, when the finger holder 3 rotates by a certain angle to reach a preset position, the push disc finger 4 points to a preset direction, and the light projected by the reflective sensor 11 passes through the linear signal groove. The recess setting of response boss 12 corresponds the direction of predetermineeing of pushing away set finger 4, if the place of predetermineeing is many and the angle is little, and the recess just need set up very densely like this. The grooves are located in the middle of the induction bosses 12, and if the induction bosses 12 are arranged in parallel, the induction bosses 12 are made to be very small in size in order to adapt to dense groove arrangement. Thus, the manufacturing requirement is high, the manufacturing cost is high, the embodiment adopts a laminating mode, and the arc-shaped platforms 17 are arranged in a laminating mode according to the set positions in a delta shape so as to be matched with the dense grooves.

Further, the direction of the light projected by the reflective sensor 11 and the direction pointed by the pushing disc finger 4 are located on the same vertical plane.

Specifically, the direction of the light projected by the reflective sensor 11 is opposite to the direction pointed by the push disc finger 4, and the reflective sensor is located on the same vertical plane, and the position of the sensing boss 12 is set according to the direction pointed by the push disc finger 4. When the light projected by the reflective sensor 11 passes through the groove of the sensing boss 12, the jog dial finger 4 points to the direction to be pointed.

Further, comprising: the optical disc detector 21 is a laser sensor and is arranged on the finger support 3; the direction of the light projected by the optical disc detector 21, the direction of the light projected by the reflective sensor 11 and the pushing direction of the pushing finger 4 are on the same vertical plane.

Specifically, the manipulator 15 is provided with an optical disc detector 21, the optical disc detector 21 is a laser sensor, the laser sensor rotates with the finger holder 3 to reach a target position and is stationary, whether an optical disc exists in the direction pushed by the disc pushing finger 4 is detected according to a signal fed back by laser projection, if yes, the second driving mechanism 2 drives the disc pushing finger 4 to perform pushing movement, and if not, the disc pushing finger 4 is prevented from performing idle pushing movement, so that the accuracy and the safety of optical storage are improved.

Further, comprising: the first driving mechanism 1 is positioned in the fixed frame 5, and an output shaft of the first driving mechanism 1 penetrates through the top of the fixed frame 5 to be connected with the finger support 3; the upper surface at the top of the fixing frame 5 is provided with a limiting column 6, and after the first driving mechanism 1 drives the finger support 3 to rotate for a certain angle, the finger support is abutted against the limiting column 6.

Specifically, the limiting column 6 is added to limit the manipulator 15 to rotate within a certain angle range, and the rotating angle range covers all the optical drives installed on the outer side of the turntable. The maximum swing range of the finger support is limited, and the phenomenon that the rotation angle of the finger support is too large, so that the circuits of related devices of the manipulator 15 are stretched and damaged can be prevented.

An accurately positioned optical disc storage device, comprising: the optical disc reading/writing device comprises an optical disc box 14, a manipulator 15 and an optical disc reading/writing driver 13, wherein the optical disc box 14 is in a circular ring shape, a plurality of vertical optical disc storage grooves are radially distributed along the diameter circular ring, the optical disc reading/writing driver 13 is arranged beside the optical disc box 14, the manipulator 15 is arranged at the center of the optical disc box 14, and the manipulator 15 comprises: first actuating mechanism 1, second actuating mechanism 2, finger support 3, push away set finger 4, propelling movement locator, finger support 3 installs on first actuating mechanism 1, and first actuating mechanism 1 is used for driving finger support 3 and rotates, second actuating mechanism 2 and push away set finger 4 install in finger support 3, and second actuating mechanism 2 is used for driving push away set finger 4 and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger 4 promoted forward is just to the CD-ROM drive mouth of CD-ROM drive 13.

Specifically, the existing mechanical arm 15 is generally disposed at one side of the optical disc cartridge 14, and such a design results in a larger space occupied by the mechanical arm 15, which results in a considerable increase in the volume of the entire optical storage device. In order to overcome the problem that the manipulator 15 occupies a large space, the embodiment employs the rotating disk type optical disk cartridge 14, and the manipulator 15 is installed at the center of the optical disk library, so that the occupied space of the manipulator 15 is reduced, various functions of the optical disk library are reserved, and meanwhile, sufficient optical disks are ensured to be used for data storage. The manipulator 15 can still realize various functions of the optical disc library in a limited space. Meanwhile, a pushing positioner is added to the mechanical arm 15, so that the pushing of the disc pushing fingers 4 can be accurately aligned to the direction of the optical drive port, the optical disc can be quickly and accurately fed into the optical drive, and the response speed and the control precision of the optical disc storage device are improved. And the push positioner is convenient to install and implement, and the cost is not high.

Further, the push positioner includes: the device comprises an induction boss 12, a boss frame and a reflection type sensor 11, wherein the induction boss 12 is fixed beside a finger support 3 by the boss frame, the induction boss 12 is provided with linear signal grooves, and the number of the grooves is the same as that of the optical disk read/write optical drives 13 and the grooves correspond to the optical disk read/write optical drives one by one; the reflective sensor 11 is arranged on the finger support 3; after the finger support 3 rotates for a certain angle, the light projected by the reflective sensor 11 passes through the linear signal groove, and the direction pointed by the disc-pushing finger 4 is over against the CD-ROM port of the CD read/write CD-ROM 13.

Specifically, the optical disc storage device of the present embodiment has a plurality of optical disc read/write drivers 13 and a plurality of linear signal grooves, and the optical disc read/write drivers 13 correspond to the sensing bosses 12 one to one. When the finger support 3 rotates a certain angle, the reflective sensor 11 projects light through the linear signal groove of the sensing boss 12, and meanwhile, the direction pointed by the disc pushing finger 4 is opposite to the CD driver port of the CD read/write driver 13 corresponding to the sensing boss 12.

Further, the boss frame comprises upright posts 16 and an arc-shaped platform 17, the induction bosses 12 are arranged on the arc-shaped platform 17 in a stacked mode, the arc-shaped platform 17 is supported by the two upright posts 16, and the finger support 3 is lower than the arc-shaped platform 17 and is located between the two upright posts 16.

Specifically, the radian of the arc platform 17 is adapted to the inner radian of the optical disc cartridge 14 and the positioning angle is better adjusted, the height of the arc platform 17 is such that the operation of the first driving mechanism 1, the second driving mechanism 2, the finger support 3 and the pushing disc finger 4 is not affected, and the finger support 3 is located between the two upright posts 16, so that the support structure of the arc platform 17 cannot block the rotation of the finger support 3.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. An accurately positioned optical disc manipulator, comprising: first actuating mechanism, second actuating mechanism, finger support, push away set finger, propelling movement locator, finger support mounting is on first actuating mechanism, and first actuating mechanism is used for driving finger support rotation, second actuating mechanism and push away set finger are installed in finger support, and second actuating mechanism is used for driving push away set finger and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger promoted forward is the assigned direction.

2. An accurately positioned optical disc manipulator according to claim 1, wherein said push positioner comprises: the device comprises an induction boss, a boss frame and a reflection type sensor, wherein the boss frame fixes the induction boss beside a finger support, and the induction boss is provided with a linear signal groove; the reflective sensor is arranged on the finger support; after the finger support rotates for a certain angle, light projected by the reflective sensor passes through the linear signal groove, and the direction pointed by the fingers of the push disc is the designated direction.

3. An accurately positioned optical disc manipulator as claimed in claim 2, wherein said gantry comprises two uprights and an arcuate platform, said arcuate platform being supported by the two uprights.

4. An accurately positioned optical disc manipulator according to claim 3, wherein a plurality of said sensing bosses are arranged in a stacked arrangement on an arcuate platform.

5. The optical disc manipulator as claimed in claim 2, wherein the direction of the light projected by the reflective sensor and the direction pointed by the finger of the disc pushing device are located on the same vertical plane.

6. An accurately positioned optical disc manipulator according to claim 5, comprising: the optical disc detector is a laser sensor and is arranged on the finger support; the direction of the light projected by the optical disk detector, the direction of the light projected by the reflective sensor and the pushing direction of the push disk finger are positioned on the same vertical plane.

7. An accurately positioned optical disc manipulator according to claim 1, comprising: the first driving mechanism is positioned in the fixing frame, and an output shaft of the first driving mechanism penetrates through the top of the fixing frame to be connected with the finger support; the upper surface at fixed bolster top has the spacing post, and after first actuating mechanism drive finger support rotated certain angle, finger support and spacing post counterbalance.

8. An accurately positioned optical disc storage device, comprising: the CD-ROM drive is arranged beside the CD-ROM box, the manipulator is arranged at the circle center of the CD-ROM box, and the manipulator comprises: first actuating mechanism, second actuating mechanism, finger support, push away set finger, propelling movement locator, finger support mounting is on first actuating mechanism, and first actuating mechanism is used for driving finger support rotation, second actuating mechanism and push away set finger are installed in finger support, and second actuating mechanism is used for driving push away set finger and promotes forward, the propelling movement locator is used for detecting whether the direction that push away set finger promoted forward is just to CD ROM drive mouth of CD ROM read/write.

9. An accurately positioned optical disc storage device as claimed in claim 8, wherein said push positioner comprises: the device comprises an induction boss, a boss frame and a reflection type sensor, wherein the boss frame fixes the induction boss beside a finger support, the induction boss is provided with linear signal grooves, and the number of the grooves is the same as that of the optical disk read/write optical drives and corresponds to that of the optical disk read/write optical drives one by one; the reflective sensor is arranged on the finger support; after the finger support rotates for a certain angle, the light projected by the reflective sensor passes through the linear signal groove, and the direction pointed by the disc pushing finger is over against the CD driver port of the CD read/write driver.

10. The apparatus of claim 9, wherein the boss frame comprises a plurality of posts and an arc-shaped platform, the plurality of sensing bosses are stacked on the arc-shaped platform, the arc-shaped platform is supported by the two posts, and the finger rest is lower than the arc-shaped platform and located between the two posts.

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