CN2601449Y

CN2601449Y - Optical drive

Info

Publication number: CN2601449Y
Application number: CN 02292581
Authority: CN
Inventors: 苏建安; 李南庆
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2002-12-25
Filing date: 2002-12-25
Publication date: 2004-01-28
Anticipated expiration: 2012-12-25

Abstract

The utility model discloses a CD driver, which comprises an upper cover, a tray, a clamping piece, a push plate and a guide column. The upper cover is provided with a slide rail, the tray is positioned at the lower side of the upper cover in a slide mode, the clamping piece is positioned on the upper cover in a movable type and the push plate is positioned on the tray. For the guide column, the first end is fixed on the push plate, while the second end is positioned in the slide rail in a slide mode. When the tray slides into or out of the upper cover, the guide column slides along the slide rail to bring the push plate to hold the clamping piece, so as to prevent the clamping piece from scratching the CD on the tray.

Description

CD-ROM drive

Technical field

The utility model relates to a kind of CD-ROM drive, particularly relates to a kind of CD-ROM drive that prevents the optical disc surface scratch.

Background technology

Along with the development of digital audio-video and the birth of high definition digital product, the capacity of CD CD has not applied and has used at present, the substitute is the higher DVD CD of storage volume.The two sides of DVD CD can record data, therefore CD-ROM drive arbitrary surface that requirement cannot the scratch CD in design, but existing CD-ROM drive is if put in non-level mode, as vertical or inclination unspecified angle, then when CD-ROM drive advances dish and moves back dish, CD just can be slight the holder that touches CD-ROM drive (clamper), produce trickle scratch one at optical disc surface, get off for a long time to damage optical disc surface, light then optical disc surface can be scraped at sixes and sevens, heavy then original recorded data in the CD given destroy.

United States Patent (USP) 6,246, disclose in 654 a kind of on holder design one magnet hold the loam cake of CD-ROM drive, to prevent holder scratch CD.Please refer to Fig. 1, Fig. 1 is the existing synoptic diagram that uses the CD-ROM drive 10 of magnetic holder gripping member.CD-ROM drive 10 comprises a loam cake 12, a holder 14, a pallet 16, a rotating disk (tum table) 18 and one motor 20.Holder 14 is arranged at loam cake 12 inboards in mobilizable mode, pallet 16 is arranged between holder 14 and the rotating disk 18 in mobilizable mode, motor 20 is arranged under the rotating disk 18, and a CD 22 is placed on the pallet 16, when CD-ROM drive 10 read CD 22, rotating disk 18 can withstand CD 22, cooperated holder 14 that CD 22 is clamped and made CD 22 leave pallet 16, drive rotating disks 18 with motor 20 again and rotate, make the read head of CD-ROM drive can read data in the CD 22.Comprise a magnet 24 and a coil 26 in the holder 14 in addition, magnet 24 is arranged at locating of holder 14 centers on every side, the uper side surface that is arranged at magnet 24 of coil 26 levels is used for controlling magnet 24 at perpendicular magnetization, makes the magneticaction of magnet 24 in vertical direction.

Structure as shown in Figure 1, when CD-ROM drive 10 is moving back dish and when advancing to coil, rotating disk 18 can descend, magnet 24 in holder 14 can produce the magneticaction of vertical direction between holder 14 and loam cake 12, make holder 14 move up away from CD 22, holder 14 holds the downside surface of loam cake 12 because of the effect of magnetic force.In the case, because the uper side surface that is arranged at magnet 24 of coil 26 levels, can be by the magnetic force that magnet 24 makes progress than coming for a short time by magnet 24 downward magnetic force, again because magnet 24 holds loam cake 12 across the inwall of holder 14, make that upwards to act on the magnetic force of loam cake 12 by magnet 24 fainter, so holder 14 is the downside surfaces that hold loam cake 12 with more weak magnetic force relatively.

CD-ROM drive 10 is when reading CD 22, rotating disk 18 can move up to engage with holder 14 CD 22 is withstood, CD 22 is suspended on the pallet 16, the magnet 24 of rotating disk 18 meetings this moment in holder 14 is close, make distance between magnet 24 and the CD 22 less than the distance between magnet 24 and the loam cake 12, holder 14 is attracted downwards tightly CD 22 to be clamped because acting on the magnetic force between magnet 24 and the rotating disk 18.Moreover because bigger than the magnetic force that is made progress by magnet 24 by the downward magnetic force of magnet 24, holder 14 can be separated with loam cake 12 easily, and magnet 24 provides magnetic force to make holder 14 have bigger strength CD 22 is clamped.In other words, the rotating disk 18 by moving the below upwards near holders 14 or mobile rotating disk 18 downwards away from holder 14, cooperate magnetic force again from magnet 24, just can operate holder 14 and hold rotating disk 18 downwards or upwards hold loam cake 12.Detailed explanation please refer to United States Patent (USP) 6,246, and 654 instructions just repeats no more at this.

From the above, prior art is to add magnet 24 in holder 14, make CD-ROM drive 10 when moving back disc and advancing disc, holder 14 can hold loam cake 12 by the magnetic force of magnet 24, to prevent holder 14 scratch CDs 22, but owing to the magnetic force size of magnet 24 can be along with the increase of temperature is successively decreased, and the magnet in the holder 14 is again to hold loam cake 12 with less relatively magnetic force, if the too little holder 14 that makes of the magnetic force of magnet 24 can't positively hold loam cake 12, then holder 14 still may scratch CD 22.Other relevant technology please refer to United States Patent (USP) 6,373,813.

The utility model content

Fundamental purpose of the present utility model is to provide a kind of CD-ROM drive that prevents the optical disc surface scratch, to address the above problem.

The purpose of this utility model is achieved in that promptly provides a kind of CD-ROM drive, comprising: a loam cake which is provided with a slide rail; One pallet slidably is located at the downside of this loam cake; One holder (clamper) is arranged on this in mobilizable mode and covers; One push pedal is arranged on this pallet; One guide pillar, its first end is fixed in this push pedal, and second end slidably is arranged in this slide rail; Wherein this guide pillar when this pallet slips into or skid off this loam cake slides and makes this push pedal withstand this holding piece along this slide rail, to avoid the CD on this this pallet of holding piece scratch.

The utility model also provides a kind of CD-ROM drive, it is characterized in that, comprising: a pallet which is provided with a guide rail; One loam cake is located at the upside of this pallet; One holder (clamper) is arranged on this in mobilizable mode and covers; One push pedal is arranged at the inboard of this loam cake; One guide pillar is fixed in this push pedal; Wherein this guide pillar when this pallet slips into or skid off this loam cake moves and makes this push pedal withstand this holding piece along this guide rail, to avoid the CD on this this pallet of holding piece scratch.

Description of drawings

Fig. 1 is the existing synoptic diagram that uses the CD-ROM drive of magnetic holder gripping member;

Fig. 2 is the synoptic diagram of the pallet of the utility model CD-ROM drive;

Fig. 3 is the synoptic diagram of the loam cake of the utility model CD-ROM drive;

Fig. 4 to Fig. 7 moves back the synoptic diagram of disc process for the utility model CD-ROM drive;

Fig. 8 is the synoptic diagram of the loam cake of second kind of CD-ROM drive of the utility model;

Fig. 9 is the synoptic diagram of the pallet of second kind of CD-ROM drive of the utility model;

Figure 10 to Figure 13 moves back the synoptic diagram of disc process for second kind of CD-ROM drive of the utility model.

Embodiment

Please refer to Fig. 2 and Fig. 3, Fig. 2 is the pallet synoptic diagram of the utility model CD-ROM drive, and Fig. 3 is the loam cake synoptic diagram of the utility model CD-ROM drive.The pallet 32 of CD-ROM drive slidably is arranged at the loam cake 40 temperature table downsides of CD-ROM drive, and loam cake 40 has the effect of protection CD, and CD is sent into reading of data in the CD-ROM drive after being placed on the pallet 32.As shown in Figure 2, the pallet 32 of CD-ROM drive comprises a push pedal 34, and the one end is fixed on the pallet 32 with a fulcrum 36, makes that push pedal 34 can be that rotate in the center of circle with fulcrum 36.Push pedal 34 is provided with a hole, is used for first end of a guide pillar 38 is fixed on the push pedal 34, makes that the distance between guide pillar 38 and the fulcrum 36 is a fixing length.As shown in Figure 3, the loam cake 40 of CD-ROM drive comprises a holder 42 and a slide rail 44.Holder 42 is arranged in mobilizable mode among the loam cake 40, and when CD-ROM drive read CD, the rotating disk of CD-ROM drive can withstand CD, cooperates holder 42 that CD is clamped again, makes CD can unsettled rotation allow the read head of CD-ROM drive read data in the CD.Slide rail 44 is a groove, is arranged at the inboard of loam cake 40, is used for holding and drawing second end of guide pillar 38, makes guide pillar 38 be merely able to move along slide rail 44.The setting of slide rail 44 is extended to its place ahead by the rear of loam cake 40 inboards, and when slide rail 44 process holders 42, slide rail 44 can be convexly curved, and its crooked direction is the side that loam cake 40 corresponds to fulcrum 36 in the push pedal 34.Because the distance in the push pedal 34 between fulcrum 36 and the guide pillar 38 is a regular length, and guide pillar 38 can only move along slide rail 44, when CD-ROM drive when advancing disc and moving back disc, CD-ROM drive of the present utility model utilizes slide rail 44 bendings to draw guide pillar 38 and drives push pedal 34 rotations and withstand holder 42, to avoid holder 42 with the CD scratch.

To Fig. 7, Fig. 4 to Fig. 7 moves back the synoptic diagram of disc process for the utility model CD-ROM drive with reference to figure 4.As shown in Figure 4, CD-ROM drive begins to move back the disc action, pallet 32 to be ready beginning by withdrawing from the CD-ROM drive, this moment, loam cake 40 still was covered with whole pallet 32, and push pedal 34 is horizontally placed on the pallet 32, when push pedal 34 is horizontal, be not to become parallel with the cross-sectional direction of pallet 32 completely, push pedal 34 just accompanies a very little angle with the cross-sectional direction of pallet 32 at the beginning the time, avoid the generation of mechanism's upper dead center, and make slide rail 44 can successfully draw guide pillar 38 to drive push pedal 34 and rotate along clockwise direction.As shown in Figure 5, pallet 32 is by withdrawing from the CD-ROM drive, when pallet 32 1 leaves the loam cake 40 of covering, a side of fulcrum 36 is convexly curved slide rail 44 in the push pedal 34 with regard to corresponding to loam cake 40 immediately, guide pillar 38 in the push pedal 34 moves along slide rail 44, drives push pedal 34 rotations and is inclined on the pallet 32 to withstand holder 42.As shown in Figure 6; withdraw from haveing suffered in the journey of CD-ROM drive at pallet 32; as long as CD is not recessed the zone that holder 42 is covered as yet fully; slide rail 44 will be kept to keep straight on and makes push pedal 34 continue to be inclined on the pallet 32 to protect CD; when CD is recessed regional that holder 42 covered fully; slide rail 44 can be convexly curved to the opposite side that loam cake 40 corresponds to fulcrum 36 in the push pedal 34 in beginning; just slide rail 44 can crookedly again be got back to the path when initial, drives push pedal 34 along counterclockwise rotating the horizontal state of getting back to traction guide pillar 38.As shown in Figure 7, CD-ROM drive is finished and is moved back disc action, and pallet 32 is by withdrawing from the CD-ROM drive, the covering that this moment, pallet 32 was recessed loam cake 40 completely, and state horizontal when just having begun to move back the disc action is also got back in the push pedal 34 on the pallet 32.In addition, the action of CD-ROM drive push pedal 34 when advancing the disc process is just opposite when moving back the disc process, and it is by Fig. 7 to Fig. 4, so just repeat no more at this in proper order.

Please refer to Fig. 8 and Fig. 9, Fig. 8 is the loam cake synoptic diagram of second kind of CD-ROM drive of the utility model, and Fig. 9 is the pallet synoptic diagram of second kind of CD-ROM drive of the utility model.Simple and convenient for what illustrate, components identical is used identical symbol among the figure.As shown in Figure 8, the loam cake 40 of CD-ROM drive comprises a push pedal 34, a chute 46 and a holder 42.First end of push pedal 34 is fixed on the loam cake 40 with a fulcrum 36, make that push pedal 34 can be that rotate in the center of circle with fulcrum 36, this outer pushing plate is provided with a guide pillar 38, distance between guide pillar 38 and the fulcrum 36 is a fixing length, second end of push pedal 34 then is provided with a protruded stigma, this protruded stigma slidably is fixed in chute 46, makes push pedal 34 to be close to loam cake 40 medial movement along chute 46.As shown in Figure 9, the pallet 32 of CD-ROM drive comprises a slide rail 44, and it is used for drawing guide pillar 38, makes guide pillar 38 be merely able to move along slide rail 44.In the present embodiment, owing to need to put CD on the pallet 32, so slide rail 44 is arranged on the below of pallet 32, utilize the attraction of magnetic force that slide rail 44 drive guide pillars 38 are moved, except using the material of magnet as guide pillar 38, cooperate iron slide rail 44 to draw outside the push pedal 34 again, also can use iron guide pillar 38 to cooperate magnetic slide rail 44, or the principle of utilizing the magnet heteropole to inhale mutually, all use the magnetic material to make guide pillar 38 and slide rail 44.The setting of slide rail 44 is to be extended to its rear by the place ahead of pallet 32, and when slide rail 44 corresponded to the position of loam cake 40 holders 42 through pallet 32, slide rail 44 can be convexly curved, and its crooked direction is the side that pallet 32 corresponds to fulcrum 36 in the push pedal 34.As previously mentioned, because the distance in the push pedal 34 between fulcrum 36 and the guide pillar 38 is a regular length, and guide pillar 38 can only move along slide rail 44, when CD-ROM drive when advancing disc and moving back disc, utilize slide rail 44 bendings to draw guide pillar 38 and drive push pedal 34 rotations and withstand holder 42, to avoid holder 42 the CD scratch.

With reference to figures 10 to Figure 13, Figure 10 to Figure 13 moves back the synoptic diagram of disc process for second kind of CD-ROM drive of the utility model.As shown in figure 10, CD-ROM drive begins to move back the disc action, pallet 32 to be ready beginning by withdrawing from the CD-ROM drive, this moment, loam cake 40 still was covered with whole pallet 32, and push pedal 34 is horizontally placed on the loam cake 40, when push pedal 34 is horizontal, is not fully to become parallel with the cross-sectional direction of loam cake 40, push pedal 34 just accompanies a very little angle with the cross-sectional direction of loam cake 40 at the beginning the time, make slide rail 44 can successfully draw guide pillar 38 and drive push pedal 34 along counterclockwise rotating.As shown in figure 11, pallet 32 is by withdrawing from the CD-ROM drive, when pallet 32 1 leaves the loam cake 40 of covering, a side of fulcrum 36 is convexly curved slide rail 44 in the push pedal 34 with regard to corresponding to pallet 32 immediately, guide pillar 38 in the push pedal 34 moves along slide rail 44, drives push pedal 34 rotations and is inclined in loam cake 40 to withstand holder 42.As shown in figure 12; withdraw from haveing suffered in the journey of CD-ROM drive at pallet 32; as long as CD is not recessed the zone that holder 42 is covered as yet fully; slide rail 44 will be kept to keep straight on and makes push pedal 34 continue to be inclined in loam cake 40 to protect CD; when CD is recessed regional that holder 42 covered fully; slide rail 44 can be convexly curved to the opposite side that pallet 32 corresponds to fulcrum 36 in the push pedal 34 in beginning; just slide rail 44 can crookedly again be got back to the path when initial, drives push pedals 34 with traction guide pillar 38 and rotates the horizontal state of getting back to along clockwise direction.As shown in figure 13, CD-ROM drive is finished and is moved back disc action, and pallet 32 is by withdrawing from the CD-ROM drive, the covering that this moment, pallet 32 was fully recessed loam cake 40, and state horizontal when just having begun to move back the disc action is also got back in the push pedal 34 on the loam cake 40.In addition, the action of CD-ROM drive push pedal 34 when advancing the disc process is just opposite when moving back the disc process, and it is by Figure 13 to Figure 10 in proper order.

From the above, CD-ROM drive of the present utility model utilize push pedal 32 cooperate surface that slide rails 44 prevent CD when CD-ROM drive advances disc or moves back disc by 42 scratches of the holder of CD-ROM drive, no matter be that first embodiment is described push pedal 34 is arranged on the pallet 32, being equipped with slide rail 44 at loam cake 40 again draws guide pillar 38 and drives push pedal 34 rotations and withstand holder 42, or second embodiment is described that push pedal 34 is arranged on the loam cake 40, be equipped with again that slide rail 44 on pallet 32 draws guide pillar 38 and drive push pedal 34 rotations and withstand holder 42, can prevent the surface of holder 42 scratch CD when CD-ROM drive advances disc or moves back disc of CD-ROM drive effectively.

Compared with prior art, the utility model utilizes push pedal to cooperate slide rail, when CD-ROM drive moves back disc or advances disc, use slide rail to guide push pedal and withstand holder, when advancing disc or move back disc, CD-ROM drive is held the scratch of part institute with the surface that prevents CD, so the utility model CD-ROM drive is certain in the action that prevents holder scratch CD.And prior art is provided with magnet in holder, make holder can when CD-ROM drive moves back disc and advances disc, hold loam cake, but owing to the magnetic force size of magnet can be along with the increase of temperature be successively decreased, so prior art is more uncertain in the action that prevents holder scratch CD.

Claims

1. a CD-ROM drive is characterized in that, comprising: a loam cake which is provided with a slide rail; One pallet slidably is located at the downside of this loam cake; One holder (clamper) is arranged on this in mobilizable mode and covers; One push pedal is arranged on this pallet; One guide pillar, its first end is fixed in this push pedal, and second end slidably is arranged in this slide rail; Wherein this guide pillar when this pallet slips into or skid off this loam cake slides and makes this push pedal withstand this holding piece along this slide rail.

2. CD-ROM drive as claimed in claim 1 is characterized in that, an end of this push pedal is used as a fulcrum and is fixed on this pallet, and this push pedal is that rotate in the center of circle with this fulcrum.

3. CD-ROM drive as claimed in claim 2, it is characterized in that, one section of this slide rail is curved, this fulcrum is located at first side of this pallet, this slide rail when this pallet skids off this loam cake guides first side shifting of this guide pillar towards this pallet, so that this holder is rotated and withstood to this push pedal towards first side of this pallet.

4. CD-ROM drive as claimed in claim 3, it is characterized in that, guide this guide pillar and move when this pallet skids off this loam cake and this CD this slide rail when having left position under this holder towards direction in contrast to this pallet first side, and the position when making this push pedal return this pallet to begin to skid off this loam cake.

5. CD-ROM drive as claimed in claim 1 is characterized in that, this slide rail is a groove.

6. CD-ROM drive as claimed in claim 5 is characterized in that this push pedal is provided with a hole, and first end of this guide pillar is fixed in this hole.

7. a CD-ROM drive is characterized in that, comprising: a pallet which is provided with a guide rail; One loam cake is located at the upside of this pallet; One holder (clamper) is arranged on this in mobilizable mode and covers; One push pedal is arranged at the inboard of this loam cake; One guide pillar is fixed in this push pedal; Wherein this guide pillar when this pallet slips into or skid off this loam cake moves and makes this push pedal withstand this holding piece along this guide rail.

8. CD-ROM drive as claimed in claim 7 is characterized in that, this guide rail is an iron guide rail, and this guide pillar is the magnetic guide pillar.

9. CD-ROM drive as claimed in claim 7 is characterized in that, this guide rail is a magnetic guiding rail, and this guide pillar is iron guide pillar.

10. CD-ROM drive as claimed in claim 7 is characterized in that, this guide rail is a magnetic guiding rail, and this guide pillar is the magnetic guide pillar.

11. CD-ROM drive as claimed in claim 7 is characterized in that, first end of this push pedal is used as a fulcrum and is fixed on this pallet, and this push pedal is that rotate in the center of circle with this fulcrum.

12. CD-ROM drive as claimed in claim 11, it is characterized in that the inboard of this loam cake is provided with a chute in addition, second end of this push pedal is provided with a protruded stigma in addition, the one end slidably is fixed in this chute, and this protruded stigma when this pallet slips into or skid off this loam cake slides along this chute.

13. CD-ROM drive as claimed in claim 12 is characterized in that, this chute is curved.

14. CD-ROM drive as claimed in claim 11, it is characterized in that, one section of this guide rail is curved, this fulcrum is located at first side of this loam cake, this guide rail when this pallet skids off this loam cake guides first side shifting of this guide pillar towards this loam cake, so that this holder is rotated and withstood to this push pedal towards first side of this loam cake.

15. CD-ROM drive as claimed in claim 14, it is characterized in that, when this pallet skid off this loam cake and this CD left this holder under this guide rail during the position guide this guide pillar and move, and the position when making this push pedal return this pallet to begin to skid off this loam cake towards direction in contrast to this pallet first side.