CN1641771A - Optical disc reading and writing device for preventing optical disc scratches - Google Patents

Abstract

A CD reading and writing device for preventing the scratch of CD is composed of a casing with a CD feeding and returning mechanism for loading or withdrawing a CD, a base plate, a CD feeding and returning mechanism for driving said CD to pass in or out the CD reading and writing device, and a soft material for preventing the scratch of CD.

Description

Optical disc reading and writing device for preventing optical disc scratches

technical field

The present invention relates to an optical disc reading and writing device, and in particular relates to an optical disc reading and writing device for preventing the optical disc from being scratched.

Background technique

Recently, with the advancement of computer technology and the popularization of multimedia applications, and the prices of computer peripherals have also continued to decline, optical drives have become a must-have electronic product for ordinary people. Among them, the slot-in optical drive can be applied to many electronic products, such as notebook computers and car CD players.

As shown in FIG. 1 , it is a schematic view of the appearance of a known optical disc reading and writing device (hereinafter referred to as optical drive 1 ). As shown in FIG. 2 , the conventional optical drive 1 has a casing 2 , a roller device 3 and a base plate 4 . The casing 2 has a disc advance and retreat opening 21, and the disc advance and retreat opening 21 further includes a first portion 21a and a second portion 21b. The roller device 3 has a roller 31 and a roller bracket 32, wherein the roller 31 is arranged on the roller bracket 32, and the roller bracket 32 can be made of plastic or sheet metal. The substrate 4 has a bottom surface 41 .

Referring to Fig. 2, when a disc 9 is loaded into the known disc drive 1, the roller 31 will drive the disc 9 into the known disc drive 1, and the driving of a transmission mechanism (not shown here) will make one end of the roller bracket 32 gradually move from position A go up. Referring to FIG. 3 , when the optical disc 9 is fully inserted into the known optical drive 1 and clamped and positioned, one end of the roller bracket 32 will reach position B to prevent another optical disc from being loaded into the known optical drive 1 again.

However, in the process of loading or ejecting the optical disc 9, it is often possible that due to improper operation by the user, the surface of the optical disc attached to the advance and retreat opening 21 of the optical disc is scratched and worn, or the surface of the optical disc attached to the bottom surface 41 of the optical drive substrate 4 is scratched and worn. (as shown in FIG. 4 ), or when the excessive vibration of the mechanism causes the roller bracket 32 to scratch the optical disc (as shown in FIG. 5 ).

Therefore, a new design is urgently needed to solve the above-mentioned problem of disc scratches.

Contents of the invention

The purpose of the present invention is to use a soft material to avoid the problem of scratches on the optical disc when the optical disc reading and writing device is in the working state of loading and unloading the disc.

The invention relates to an optical disc reading and writing device for preventing the optical disc from being scratched, comprising a shell, a base plate, an optical disc advancing and retreating mechanism and a soft material.

The casing has a disc advance and retreat opening, the substrate is arranged in the casing, the disc advance and retreat mechanism is arranged on the substrate for loading or ejecting a disc, and the soft material is arranged on the disc to read and write The soft material is used to prevent the optical disc from being scratched when the optical disc is driven through the optical disc advance and retreat mechanism and passed through the optical disc advance and retreat opening to enter and exit the optical disc reading and writing device.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the attached drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

FIG. 1 is a schematic diagram of the appearance of a known optical drive;

FIG. 2 is an exploded schematic diagram of a known optical drive;

Fig. 3 is a schematic diagram of a disc entering a known disc drive and being clamped and positioned;

Fig. 4 is a schematic diagram of scratches and wear on the bottom surface of the optical disc attached to the optical drive substrate;

Fig. 5 is a schematic diagram of a disc scratched by a roller bracket of a known optical drive;

Figure 6 is a schematic diagram of the appearance of the optical drive;

Figure 7 is an exploded view of the optical drive after the shell is removed;

Fig. 8 is a schematic diagram of a mechanism for loading an optical disc into an optical drive;

Figure 9 is a schematic view of the appearance of the roller bracket;

Fig. 10 is a schematic diagram of the first embodiment of the present invention;

11 is a schematic diagram of a second embodiment of the present invention;

Fig. 12 is a schematic diagram of pasting a soft material on the bottom surface of the substrate;

Fig. 13 is a schematic diagram of when the optical disc enters the optical drive in the third embodiment of the present invention;

Fig. 14 is a schematic diagram of when the optical disc enters the optical drive and is clamped and positioned in the third embodiment of the present invention;

Fig. 15 is a schematic diagram of the first protruding portion and the second protruding portion clipping the optical disc during the loading process of the optical disc;

Fig. 16 is a schematic diagram of the first protruding part and the second protruding part clipping the disc after the disc is ejected;

Figure 17 is a schematic structural view of a soft material;

Figure 18 is a schematic structural view of a soft material;

Figure 19 is a schematic structural view of a soft material; and

Fig. 20 is a schematic diagram of the structure of the soft material.

Description of drawings and numbers

1 Publicly known CD-ROM drive 1A CD-ROM drive

2 Shell 2A Shell

21 CD-ROM entry and exit 21a The first part

21b Part 2 21A Disc entry and exit

21Aa Part 1 21Ab Part 2

3 Roller device 3A Disc advance and retreat mechanism

31 Roller Wheel 32 Roller Bracket

31A Roller Wheel 32A Roller Bracket

32A1 First protrusion 32A2 Second protrusion

32A3 First notch 32A4 Second notch

33A gear drive unit 34A motor

4 Substrate Substrate 4A Substrate

41 Bottom 41A Bottom

6 soft material

9 CD-ROM 9A CD-ROM

Detailed ways

Embodiments of the present invention are described below in relation to slot-load optical drives. However, the present invention is applicable to all optical drive products, including read-only optical drive (CD-ROM), recordable optical drive (CD-RW), half-height optical drive (Half Height), COMBO optical drive, DVD-R/RW optical drive , external optical drives, all optical media recorders and players, etc.

As shown in Figure 6, it is an optical disc reading and writing device (hereinafter referred to as

The optical drive 1A) has a casing 2A, and the casing 2A has a disc advance and retreat opening 21A, and the optical disc advance and retreat opening 21A further includes a first portion 21Aa and a second portion 21Ab.

As shown in FIG. 7 , after the casing 2A is removed, the optical drive 1A can be further divided into a disc advance and retreat mechanism 3A and a base plate 4A. The disc advancing and unwinding mechanism 3A is disposed on the base plate 4A for loading or ejecting an optical disc. The disc advance and retreat mechanism 3A includes a roller 31A, a roller bracket 32A, a gear transmission set 33A and a motor 34A.

The roller 31A is arranged on the roller bracket 32A to drive the optical disk in and out of the optical drive 1A; the motor 34A is used to drive the gear transmission group 33A, and the gear transmission group 33A drives the first gear 31A1 by means of the second gear 33A1 to make The roller 31A rotates, and through the rotation direction of the roller 31A, the disc advances and retreats. The roller 31A is disposed on the roller bracket 32A, and the roller bracket 32A can be made of plastic or sheet metal. The substrate 4A has a bottom surface 41A. As shown in FIG. 8 , it is a schematic diagram of a mechanism for loading an optical disc into the optical drive 1A.

Referring to Fig. 9, the roller bracket 32A further includes a first protrusion 32A1, a second protrusion 32A2, a first notch 32A3 and a second notch 32A4, and the roller 31A is arranged in the first notch 32A3 and a second notch 32A4.

Referring to Fig. 10, it is the first embodiment of the present invention. When a disc 9A is loaded or withdrawn from the optical drive 1A, the disc 9A will pass through the disc advance and retreat opening 21A. The tab 21A is scratched and worn. Therefore, a soft material 6 is pasted on the first part 21Aa and the second part 21Ab of the optical disc advance and retreat opening 21A of the optical drive 1A, wherein the soft material 6 is a flannelette woven with thin fibers or a material similar to a braided fabric. In this way, it is possible to prevent the surface of the optical disc 9A from being scratched and worn by the disc advance and retreat opening 2A1 during the process of loading or ejecting the optical disc 9A. And the soft material 6 can also be separately disposed on the first portion 21Aa or the second portion 21Ab.

Referring to FIG. 11 , it is the second embodiment of the present invention. Since the optical drive 1A is loading or ejecting the optical disc 9A, one side of the optical disc 9A will stick to the roller 31A, and the other side will stick to the bottom surface 41A of the substrate 4A. Therefore, when the optical disc 9A is loaded or ejected many times, the surface of the optical disc attached to the bottom surface 41A may be scratched or worn. So paste a soft material 6 on the bottom surface 41A of the substrate 4A, as shown in Figure 12, wherein the soft material 6 is a fine fiber woven flannelette or a material similar to a braid, so that it can prevent During loading or unloading of the optical disc 9A, the surface of the optical disc 9A is scratched and worn by the bottom surface 41A.

Referring to FIG. 13 , it is a third embodiment of the present invention. A soft material 6 is pasted on the surface of the first protruding portion 32A1 and the second protruding portion 32A2 of the roller bracket 32A, wherein the soft material 6 is a thin Fiber woven fleece or a braid-like material or rubber. When a CD 9A is loaded into the CD drive 1A, the motor 34A will drive the gear transmission group 33A, and the gear transmission group 33A will further make the roller 31A, and the rotating roller 31 will drive the CD 9A into the CD drive 1A, through a transmission mechanism (in (not shown) will make the first protruding portion 32A1 and the second protruding portion 32A2 of the roller bracket 32A rise gradually from the original first position (position A).

Referring to Fig. 14, when the optical disc 9A is driven by the roller 31A and completely enters the optical drive 1A and is clamped and positioned, the first protruding portion 32A1 and the second protruding portion 32A2 will reach the second position (B position) from the first position (A position). position), so that the first protruding portion 32A1 and the second protruding portion 32A2 are used to block another optical disc from entering the optical drive 1A.

Referring to Fig. 15, if the first protruding portion 32A1 and the second protruding portion 32A2 are clamped to the optical disc 9A due to the excessive vibration of the mechanism during the loading process of the optical disc 9A, but the first protruding portion 32A1 and the second protruding portion 32A2 are stuck A soft material 6 can prevent the optical disc 9A from being damaged or scratched. Referring to Fig. 16, after the ejection of the optical disc 9A is completed, the optical disc 9A may sag and lean on the first protruding portion 32A1 and the second protruding portion 32A2 due to gravity, The portion 32A2 is pasted with a soft material 6 to prevent the optical disk 9A from being damaged or scratched.

As shown in Figure 17, the fine-fiber woven flannelette described in the first, second, and third embodiments or a material similar to a braid can be further coated with an adhesive layer on the bottom surface, and then glued on the bottom surface of the adhesive layer. Paste a release paper combination. As shown in Figure 18, the fine fiber woven flannelette described in the first, second, and third embodiments or a material similar to a woven fabric can be further laminated with a layer of antistatic film on the bottom surface, and on the bottom of the antistatic film It is formed by coating an adhesive layer on the surface, and pasting a release paper on the bottom surface of the adhesive layer. As shown in Figure 19, the fine fiber woven flannelette or similar braided material described in the first, second and third embodiments can be further coated with an adhesive layer on the bottom surface, and then bonded on the bottom surface of the adhesive layer A plastic sheet is formed by coating an adhesive layer on the bottom surface of the plastic sheet, and sticking a release paper on the bottom surface of the adhesive layer. As shown in Figure 20, the fine fiber woven flannelette described in the first, second, and third embodiments or similar braided material can be further pasted with a layer of antistatic film on the bottom surface, and on the bottom of the antistatic film Coat an adhesive layer on the surface, then stick a plastic sheet on the bottom of the adhesive layer, coat an adhesive layer on the bottom of the plastic sheet, and stick a release paper on the bottom of the adhesive layer combined.

The present invention utilizes a soft material 6, which is arranged on the disc advance and retreat opening 21A, the bottom surface 41A of the substrate 4A, or the first protruding portion 32A1 and the second protruding portion 32A2 of the roller bracket 32A, when the disc is driven by the disc advance and retreat mechanism 3A And when the optical disc is loaded into or withdrawn from the optical drive 1A through the optical disc advance and retreat opening 21A, the soft material 6 can avoid the problem of optical disc scratches.

In summary, although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention, any person of ordinary skill in the art, without departing from the spirit and scope of the present invention, of course can make various Therefore, the scope of protection of the present invention should be defined by the scope of claims of the patent application.

Claims (13)

1. A disc reading and writing device for preventing disc scratches, comprising: A shell with a disc advance and retreat opening; a substrate disposed in the housing; an optical disc advancing and retreating mechanism, the optical disc advancing and retreating mechanism is arranged on the substrate for advancing and retreating the optical disc; and A soft material arranged at a predetermined position adjacent to the optical disc in the optical disc reading and writing device; Wherein, when an optical disc is driven through the optical disc advance and retreat mechanism and passed through the optical disc advance and retreat opening to enter and exit the optical disc reading and writing device, the soft material is used to prevent the optical disc from being scratched. 2. The optical disc reading and writing device according to claim 1, characterized in that: the optical disc advancing and retreating mechanism further comprises: a roller bracket; a roller, the roller is arranged on the roller bracket to drive the optical disc; a gear transmission group, the gear transmission group is used to drive the roller to rotate, and to complete the movement of the optical disk in and out through the different rotation directions of the roller; and A motor for driving the gear train. 3. The optical disc reading and writing device according to claim 1, characterized in that: the roller support further comprises a first protrusion, a second protrusion, a first notch and a second notch, the The roller is arranged on the first notch and the second notch, wherein when the disc is driven by the roller and completely enters the disc reading and writing device and clamped and positioned, the roller bracket will reach from a first position A second position, the first protruding portion and the second protruding portion are used to block another optical disc from entering the optical disc reading and writing device. 4. The optical disc reading and writing device as claimed in claim 3, wherein the soft material is disposed on the surface of the first protruding portion and the second protruding portion of the roller bracket. 5. The optical disc reading and writing device as claimed in claim 1, wherein the soft material is disposed on the surface of the substrate facing the optical disc. 6. The optical disc reading and writing device as claimed in claim 1, wherein the soft material is disposed on an edge surface of the optical disc advance and retreat opening. 7. The optical disc reading and writing device according to claim 1, characterized in that: the optical disc advancing and retreating opening further comprises a first part and a second part, and the soft material can be separately arranged on the first part or the second part. part two. 8. The optical disc reading and writing device as claimed in claim 1, wherein the soft material is flannelette woven with fine fibers or a material similar to braided fabric. 9. The optical disc reading and writing device as claimed in claim 4, wherein the soft material disposed on the first protruding portion and the second protruding portion of the roller bracket is rubber. 10. The optical disc reading and writing device as claimed in claim 8, characterized in that: the fine-fiber woven flannelette or similar braided material is further coated with an adhesive layer on the bottom surface, and then coated on the adhesive layer It is formed by pasting a release paper on the bottom surface. 11. The optical disc reading and writing device as claimed in claim 8, characterized in that: the fine fiber woven flannelette or similar braided material is further laminated with an antistatic film on the bottom surface, and the antistatic film is placed on the antistatic surface. The bottom surface of the film is coated with an adhesive layer, and then a release paper is pasted on the bottom surface of the adhesive layer. 12. The optical disc reading and writing device as claimed in claim 8, characterized in that: the fine fiber woven flannelette or similar braided material is further coated with an adhesive layer on the bottom surface, and then the adhesive layer It is formed by sticking a plastic sheet on the bottom surface, coating an adhesive layer on the bottom surface of the plastic sheet, and pasting a release paper on the bottom surface of the adhesive layer. 13. The optical disc reading and writing device as claimed in claim 8, characterized in that: the fine fiber woven flannelette or similar braided material is further pasted with an antistatic film on the bottom surface, and an antistatic film is placed on the antistatic surface. The bottom surface of the film is coated with an adhesive layer, and then a plastic sheet is glued on the bottom surface of the adhesive layer, and then an adhesive layer is coated on the bottom surface of the plastic sheet, and then a plastic sheet is pasted on the bottom surface of the adhesive layer. Combination of release paper.

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