CN100573685C - CD driver insertion preventing device - Google Patents

Abstract

The invention discloses a CD-ROM drive insertion prevention device, which utilizes a sliding part which moves back and forth along a CD-ROM drive to drive a disc to advance and retreat, wherein one end of the sliding part close to an access opening is provided with a pushing end head, and a convex block is arranged on a moving path of the sliding part in a backward extending way on a protection unit. When the sheet is withdrawn, the pushing end head is pushed away from the convex block, so that the protection unit is reset and leaves the entrance.

Description

Optical drive prevention device

technical field

The invention relates to a device for preventing insertion of an optical drive, in particular to a device for preventing other discs from being reinserted into the optical drive when there are discs in the suction-type optical drive.

Background technique

Generally, optical drives are mainly divided into tray type (Tray type) and suction type (Slot-in type). Tray-type optical drive is to place the disc on the tray, which is brought into the optical drive by the tray, and the front panel of the tray is embedded in the optical drive to close the entrance and exit, so as to prevent the disc being played from being disturbed. However, the slot-in optical drive uses guide rods or rollers to directly guide the disc in and out. With the normally open inlet and outlet, the user is very easy to insert the disc accidentally, causing the disc to be disturbed during high-speed operation, or even broken and damaged. optical drive.

Therefore, in order to protect the optical drive and the disk in operation, the existing slot-in optical drive is equipped with a protection unit at the entrance and exit, and prevents the disk from being inserted again when the optical drive is running. In order to enable the protection unit to cooperate with the normal entry and exit of the disc, the existing slot-in optical drive often uses a gear set or a connecting rod set to drive the protection unit. The entrance and exit protect the normal operation of the optical drive and avoid hindering the entry and exit of the disc. However, the above-mentioned gear set or connecting rod set of the drive protection unit needs to be additionally installed, which not only increases the difficulty of the overall drive design of the optical drive, but also increases the cost of the product, thereby reducing the market competitiveness of the product. In addition, the aforementioned gear set or connecting rod set has a plurality of transmission components, if a problem occurs in one of them, the protection unit cannot be driven, resulting in unstable transmission reliability. Therefore, there are still problems to be solved in the protective device for preventing disc insertion of the existing optical drive.

Contents of the invention

The object of the present invention is to provide a device for preventing insertion of an optical drive, which drives the protection unit through the original sliding part of the optical drive to simplify the transmission mechanism and parts of the optical drive and reduce the product cost.

Another object of the present invention is to provide a device for preventing insertion of an optical drive, which utilizes a simple cam mechanism to switch the protection unit on and off, so as to improve the reliability of the product.

In order to achieve the purpose of the foregoing invention, the device for preventing insertion of an optical drive of the present invention utilizes a sliding member that moves back and forth along the optical drive to drive the disc advance and retreat. On the moving path, a bump is extended backward on the protection unit. When the film feeding is completed, the pushing end pushes the bump, so that the protection unit extends backward and is rotatably fixed on the support frame near the entrance and exit, resulting in Turn up to cover part of the access port and prevent other discs from being inserted. When the film is ejected, push the end away from the bump, so that the protection unit resets and leaves the entrance and exit.

Description of drawings

Fig. 1 is the upper view of the internal structure of the slot-in optical drive of the present invention;

Fig. 2 is a partially enlarged perspective view of the device for preventing insertion of the optical drive of the present invention;

Fig. 3 is an exploded part view of the insertion prevention device of the present invention;

FIG. 4 is a schematic diagram of the action of inserting a disc in the present invention;

Fig. 5 is a schematic diagram of the action of pushing the disk into the present invention;

FIG. 6 is a schematic diagram of the operation of disk positioning in the present invention.

Description of main component symbols

1 optical drive

2 drive motor

3 transmission unit

4 sliding parts

5 film advance connecting rod

6 film guide rod

7 skateboard

8 The first positioning rod

9 Second positioning rod

10 linkage gear set

11 Eject guide rod

12 Expansion rod

13 rack

14 entrances and exits

15 Chassis

16 sliding pin

17 track

18 guide groove

19 convex pin

20 sector turntable

21 Spindle motor

22 protection unit

23 push end

24, 25 Fixing frame

26 return spring

27, 28 support frame

29, 30 Fixing holes

31 limit block

32 bumps

D disc

Detailed ways

In order to achieve the above object, the present invention adopts the technical means and its effects, the preferred embodiments are given, and are described as follows in conjunction with the drawings.

Please refer to FIG. 1 , which is a diagram of the internal transmission structure of the slot-in optical drive using the insertion prevention device of the present invention. The slot-in optical drive 1 mainly includes a transmission motor 2, a transmission unit 3, a slider 4, a film advance connecting rod 5, a film advance guide rod 6, a slide plate 7, a first positioning rod 8, a second positioning rod 9, and a linkage gear set. 10. The guide rod 11 and the stretching rod 12 for unwinding the film. This CD-ROM drive 1 rotates the transmission unit 3 that is formed by the gear set with the transmission motor 2, then drives the slider 4 with the rack 13 by the transmission unit 3, moves to the CD-ROM drive 1 entrance and exit 14, and the slider 4 is provided with a plurality of Sliding groove, respectively drives advance and retreat sheet mechanisms such as sheet connecting rod 5, slide plate 7 and strut bar 12. The film-advancing link 5 uses the chute at the other end to move on the film-advancing guide rod 6, so that one end of the film-advancing guide rod 6 fixed on the casing 15 pushes the disc D inserted into the optical drive 1 from the outside of the disc D. enter.

In addition, the sliding pin 16 on the sliding plate 7 is affected by the sliding groove on the sliding member 4, so that the sliding plate 7 moves laterally under the restraint of the track 17, and guides the convex pin 19 of the first positioning rod 8 to move with its guide groove 18. Drive the first positioning rod 8, and make the interlocking gear set 10 that one end is interlocked with the first positioning rod 8 rotate accordingly, allowing the second positioning rod 9 that is interlocking with the other end of the moving interlocking gear set 10 to be connected with The speed matched by the first positioning rod 8 is simultaneously opened to guide the disk D to the positioning. Finally, under the drive of the sliding groove of the slider 4, the spreading rod 12 supports the fan-shaped turntable 20 linked with the ejection guide rod 11, so that the ejection guide rod 11 is detached from the edge of the disc D, and at the same time, the slider 4 Under the actuation of the sliding groove and the guide groove 18 of the slide plate 7, the film advance guide rod 6, the first positioning rod 8, and the second positioning rod 9 are also separated from the edge of the disc D, and the disc D is rotated by the spindle motor 21. to complete the film advance. When ejecting the film, turn the transmission motor 2 in the opposite direction to make the transmission unit 3 rotate the turntable 20 to allow the film ejection guide rod 11 to push out the disc D, and at the same time turn the transmission motor 2 to make the transmission unit 3 drive the slider 4 to move to the inside of the optical drive 1, Drive the film advance connecting rod 5, the slide plate 7 and the spreader rod 12 to move in the opposite direction, and at the same time reversely move the film advance guide rod 6, the first positioning rod 8 and the second positioning rod 9 to guide the disc D to exit the optical drive 1.

Because the slider 4 of the slot-in optical drive 1 is guided by the drive motor 2 to rotate the transmission unit 3 to drive the rack 13 of the slider 4 when the disc D is guided to advance and retreat, the slider 4 is formed to move forward and backward along the optical drive 1 to carry out In and out films. The insertion prevention device of the present invention utilizes the sliding member 4 as the driving force, and mainly includes a protection unit 22 and a pushing end 23 . The protection unit 22 is rotatably fixed on the fixing frames 24 and 25 provided on the casing 15 , and the pushing end 23 is provided at the front end of the sliding member 4 .

As shown in FIG. 2 , it is a partial enlarged view of the structure of the protection unit 22 and the pushing end 23 in the slot-in optical drive 1 . Wherein, the protection unit 22 is mainly a sheet-shaped door panel, which is arranged on the outside of the transmission motor 2, and only covers part of the entrance and exit 14, forming an obstacle for entering and exiting. Please refer to FIG. 3 . FIG. 3 is an exploded view of the protection unit 22 , the return spring 26 and the slider 4 . The two ends of the protection unit 22 respectively extend two support frames 27, 28 backward, and the near rear ends of the two support frames 27, 28 are respectively provided with a fixing hole 29, 30, which are rotatably fixed to the fixed frame 24 of the casing 15 respectively. , 25 (please refer to Fig. 1), so that the protection unit 22 can be centered on the fixing holes 29 and 30 to rotate up and down, one end of the back-moving spring 26 is fixed on the fixed frame 24 of the casing 15, and the other end presses the supporting frame 27, so that The protection unit 22 is maintained in a state away from the entrance 14 . On the support frame 28 near the middle of the entrance 14, a restriction block 31 is arranged at its rear end to prevent the disc D from being inserted into the entrance 14 obliquely downwards, and touching the internal components of the optical drive 1 to cause damage. Put a lint cloth on it to avoid scratching the disc D. In addition, on the rear surface of the protection unit 22 along the moving path of the slider 4 , a protrusion 32 is extended backward, and the lower end surface of the protrusion 32 is an arc-shaped surface. The push end 23 is located at the front end of the slider 4 near the entrance and exit 14, protrudes from the slider 4, the upper end surface is an arc-shaped surface, and faces the bump 32 of the protection unit 22, forming a cam-like linkage mechanism.

The actuation process of the insertion prevention device of the present invention is shown in FIG. 4 . When the disk D is inserted into the optical drive, the protection unit 22 will keep the entrance and exit unblocked by its weight or by the return spring 26 . If the disk D is inserted at an excessive downward slope, the front edge of the disk D will be blocked by the restricting block 31 and cannot be further inserted. It is necessary to adjust the disk D to be inserted at an angle above the horizontal to avoid damage to the disk D or Components inside an optical drive. As shown in FIG. 5 , when the optical drive detects that the disk D has entered, the optical drive will be activated to drive the sliding member 4 to move to the front, driving the advance and retreat mechanism of the optical drive to push the disk D into it. As shown in Figure 6, when the slider 4 guides the disk D into position, the push end 23 at the front end of the slider 4 can touch the bump 32 of the protection unit 22, so that the arc surface of the push end 23 is smooth. Push the arc-shaped surface of the lower end surface of the protrusion 32 to lift the protrusion 32, so that the protection unit 22 rotates upwards around the fixing holes of the support frames 27 and 28 to block part of the entrance and exit 14 and prevent other discs from being inserted. When the film is withdrawn, the slider 4 acts in the opposite direction, and moves backward to allow the pushing end 23 to break away from the projection 32, so as to release the protection unit 22, so that the protection unit 22 will be affected by its weight or by the return spring 26, so that Entrance and exit 14 keep unimpeded, in order to advance and retreat sheet.

Therefore, the anti-insertion device of the optical drive of the present invention can slightly change the shape and structure of the original protection unit of the slot-in optical drive and the slider of the advancing and retreating mechanism to form a similar simple and reliable cam linkage mechanism as a driving protection device. unit, so that the protection unit can be switched on and off in a timely manner to prevent abnormal insertion, without using a gear set or a connecting rod set with many parts and high cost, and can achieve the purpose and effect of simplifying the transmission mechanism and parts of the optical drive, and Product cost can be reduced. In addition, the above-mentioned embodiment is illustrated with a large-sized disk. Although the moving distance of the slider 4 is slightly different for the small-sized disk, it is only necessary to adjust the position or shape of the push end 23 and the protrusion 32 appropriately. The purpose and effect of the present invention can be achieved, and all belong to the technical category of the present invention.

The above are only used to illustrate the preferred embodiments of the present invention for convenience, the scope of the present invention is not limited to these preferred embodiments, any changes made according to the present invention, without departing from the spirit of the present invention, All belong to the protection scope of the present invention.

Claims (14)

1. A device for preventing insertion of an optical drive, which is located in an optical drive with an entrance and exit, comprising: A slider, the slider moves toward the optical drive entrance when the film is fed in and moves toward the inside of the optical drive when the film is unloaded, and a pushing end is arranged at the end of the slider near the entrance; and A protection unit, at least one support frame is arranged on the protection unit and extends to the inside of the optical drive, the protection unit is rotatably fixed near the entrance and exit, and a protrusion is arranged on the protection unit along the moving path of the slider and extends toward the Optical drive internal extension, Wherein, when film feeding is completed, push the end to push the bump, and the protection unit rotates upwards with the support frame, so that the protection unit blocks the entrance and exit; when the film is withdrawn, the push end leaves the bump, and the protection unit supports The frame is rotated downward to allow the protection unit to leave the opening. 2. The device for preventing disc insertion of an optical drive according to claim 1, wherein the optical drive further comprises a transmission motor and a transmission unit, and the transmission motor drives the sliding member to move back and forth along the optical drive through the transmission unit to advance and retreat the disc. 3. The device for preventing insertion of an optical drive according to claim 1, wherein the pushing end protrudes from the slider, the upper end surface is an arc-shaped surface, and the lower end surface of the protrusion is an arc-shaped surface. 4. The device for preventing insertion of an optical drive according to claim 1, wherein the pushing end and the protrusion are a cam linkage mechanism. 5. The device for preventing insertion of an optical drive according to claim 1, wherein the opening is further provided with a fixing frame, and the supporting frame is rotatably fixed on the fixing frame. 6. The device for preventing insertion of an optical drive according to claim 5, wherein a fixing hole is provided at an end of the supporting frame close to the inside of the optical drive, and is rotatably fixed to the fixing frame. 7. The device for preventing insertion of an optical drive according to claim 5, wherein the supporting frames are respectively arranged at both ends of the protection unit and extend toward the inside of the optical drive, and each supporting frame is provided with a fixing hole at an end close to the inside of the optical drive, They are respectively rotatably fixed on the fixed frame. 8. The device for preventing insertion of an optical drive according to claim 1, wherein the protection unit is a sheet-shaped door panel. 9. The device for preventing insertion of an optical drive according to claim 1, wherein the protection unit covers part of the entrance and exit. 10. The optical drive insertion prevention device according to claim 1, further comprising a return spring, the optical drive includes a lower casing, one end of the return spring is fixed to the protection unit, and the other end is fixed to the lower casing of the optical drive, so that the protection The unit remains in the state of leaving the entrance. 11. The device for preventing insertion of an optical drive according to claim 10, wherein one end of the return spring is fixed to the supporting frame of the protection unit. 12. The device for preventing insertion of an optical drive according to claim 1, wherein a limiting block is provided at an end of the supporting frame close to the inside of the optical drive. 13. The optical drive insertion preventing device according to claim 12, wherein the supporting frame is closer to the middle of the entrance. 14. The device for preventing insertion of an optical drive according to claim 12, wherein a surface of the limiting block is covered with flannelette.

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