CN2538051Y

CN2538051Y - Disc data access device for preventing disc scraping

Info

Publication number: CN2538051Y
Application number: CN 02231077
Authority: CN
Inventors: 蔡明学; 陈启鸿
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2002-04-23
Filing date: 2002-04-23
Publication date: 2003-02-26
Anticipated expiration: 2012-04-23

Abstract

The utility model relates to a disc data access device that can prevent the disc from being scraped, comprising a shell body, a tray and a stopping device; wherein the tray is used for loading a disc, when the disc is placed into the tray in a non-preset way, the stopping device arranged in the shell body can prevent the disc from coming into the shell body. In one embodiment, the stopping device comprises a protrude part that can prevent the disc from coming into the shell body in a non-present way; and in another embodiment, the stopping device comprises an induction device, when the disc is placed into the tray in a non-present way and comes into the shell body, the disc triggers the induction device, and the induction device can stop the movement of the tray to prevent the disc from being scraped when the disc is placed into the tray.

Description

Prevent the disc data access device of disc scratch

Technical field

The utility model relates to a kind of disc data access device that prevents the disc scratch, particularly relates to a kind of CD-ROM drive with blocking mechanism, with the disc that prevents to place with non-predetermined way by scratch.

Background technology

Along with the progress of science and technology,, be more and more widely for disc application on the living conditions light and that amount of data storage is big.Simultaneously, also make disc also frequent day by day in daily use.

, be earlier disc to be placed on the ad-hoc location of pallet generally, in the CD groove as pallet, make disc enter disc data access device (or CD-ROM drive) via the carrying of pallet to the access of disc data.Utilize then and seize assembly on both sides by the arms and rotating disk is seized disc on both sides by the arms, and the action of reaching the rotation disc and reading and writing data.Yet when disc normally was not placed on the ad-hoc location of pallet, after pallet carrying disc entered CD-ROM drive, the position that meeting is placed because of disc was improper, and causes the intermediate plate bad phenomenon of disc, and the position that claims this disc to place herein is non-precalculated position.Therefore, when being rotated disc and reading and writing data, the surface of disc can rotate by the rotating disk scratch because of Spindle Motor.When serious, even can cause data degradation or damage disc.

Figure 1A enters CD-ROM drive for the explanation disc is positioned over pallet with non-predetermined way, and the simple and easy synoptic diagram of disc scratch takes place.Wherein disc 10 is positioned over pallet 12 with non-predetermined way, that is, discs 10 is not to be positioned over fully in the CD groove 120 of pallet 12.Pallet 12 enters in the CD-ROM drive along the direction shown in the arrow A.After pallet 12 was just located, rotating disk 14 can rise according to regular event, impelled rotating disk 14 and disc 10 that holding action takes place, thereby made part disc 10 contact with rotating disk 14.When Spindle Motor 16 rotation, contact site 101 that will scratch disc 10 is shown in Figure 1B.

Therefore be necessary to provide a kind of disc data access device, with the disc scratch that prevents to place with non-predetermined way with blocking mechanism.

The utility model content

The purpose of this utility model has been to provide a kind of disc data access device that prevents the disc scratch, and to solve in the above-mentioned utility model background, the easy scratch of traditional CD-ROM drive is with the shortcoming of the disc of non-predetermined way placement.

Order of the present utility model is achieved in that promptly provides a kind of disc data access device that prevents the disc scratch, comprising: a housing; One in order to carry the pallet of a disc, wherein, in described housing, is provided with a retention device that is used to avoid enter with the disc that non-predetermined way is positioned over pallet housing.

Disc data access device in an embodiment of the present utility model has an induction installation, to replace above-mentioned blocking mechanism.When disc was positioned over pallet with non-predetermined way, induction installation made pallet stop to move, and entered housing to avoid disc.

Advantage of the present utility model is, owing to be provided with blocking mechanism in casing, makes the CD can be by scratch when placing in the pallet with non-predetermined way, and it is rational in infrastructure, simple.

Description of drawings

Figure 1A and Figure 1B are respectively the simple and easy synoptic diagram of a prior art CD-ROM drive scratch disc;

Fig. 2 is the schematic perspective view of the disc data access device of the utility model first embodiment;

Fig. 3 A and Fig. 3 B be respectively disc retaining that the retention device in the utility model will place with non-predetermined way outside housing on look synoptic diagram and diagrammatic cross-section;

Fig. 4 is the schematic perspective view of the disc data access device of the utility model modification;

Fig. 5 is the schematic perspective view of the disc data access device of the utility model second embodiment.

Embodiment

With reference to figure 2, it shows the schematic perspective view of disc data access device of the present utility model.The utility model provides a kind of disc data access device 2 that prevents the disc scratch, as CD-ROM drive.Disc data access device 2 of the present utility model comprises a housing 22, one pallets 24 and a retention device.Wherein pallet 24 is in order to carry a disc 10.Retention device is for preventing that the disc 10 that non-predetermined way is placed from entering housing 22.

In first embodiment, retention device is a teat 26, is arranged at the side 224 that enters the inlet 222 of housing 22 near pallet 24.When disc 10 was positioned over pallet 24 with non-predetermined way, teat 26 entered housing 22 in order to prevent disc 10.Thus, rotating disk 14 just can that intermediate plates take place be not bad with the disc 10 placed with non-predetermined way on the pallet 24, and causes the phenomenon of disc 10 scratches.In other words, teat 26 props up the disc of placing with non-predetermined way 10 makes the pallet 24 of carrying disc 10 can't enter in the housing 22 fully, and therefore can't rise to the normal position with the rotating disk 14 of pallet 24 interlocks, and can avoid contacting, shown in Fig. 3 A and Fig. 3 B with disc 10.Pallet 24 retaining that Fig. 3 A and Fig. 3 B simple illustration teat 26 of the present utility model will carry disc 10 outside housing 22 on look synoptic diagram and cross-sectional schematic.Wherein the material of teat 26 is to touch the person that but do not injure the disc for preferable, as plastics or resilient material with disc.

Please refer to Fig. 5, in a second embodiment, retention device comprises an induction installation 60.When disc 10 was positioned over pallet 24 with non-predetermined way, induction installation 60 made pallet 24 stop to move, and entered housing 22 to avoid disc 10.Induction installation 60 is arranged at the side 224 that enters the inlet 222 of housing 22 near pallet 24.Wherein the disc data access device 6 of second embodiment further comprises a drive unit 28, in order to moving of driving tray 24.Drive unit 28 comprises motor and gear (not indicating).The wherein rotation of motor driving gear, and the tooth bar coupling of gear and pallet 24 (not icon) make drive unit 28 and pallet 24 form a serial verb construction, reach the purpose of driving tray 24.When disc 10 is positioned over pallet 24 with non-predetermined way and enters housing 22, disc 10 touch inducing devices 60, thereby induction installation 60 makes the motor of drive unit 28 stop action by a control device (not icon), and can't driving tray 24, makes pallet 24 stop to move.Thus, the location just not because pallet 24 stops to move, rotating disk 14 just can not rise to the normal position of read-write disc, thereby just can be to disc 10 intermediate plates of placing with non-predetermined way, and causes disc 10 scratches, shown in Fig. 3 A and Fig. 3 B.In other words, the disc of placing with non-predetermined way 10 stops to move because of pallet 24, and can't enter housing 22 by the carrying of pallet 24.Wherein induction installation 60 comprises a touch inductor, and touch with touch inductor 60 with the disc 10 that non-predetermined way is placed, thereby activate inductor 60 and pass through control device, the motor of drive unit 28 is stopped, pallet 24 thereby stop to move, thus, the disc of placing with non-predetermined way 10 promptly is blocked in outside the housing 22.

Please refer to Fig. 4, it is the schematic perspective view of the disc data access device 4 of the utility model modification.Disc data access device 4 of the present utility model also further has at least one slide rail 30, and it limits the stroke that pallet 24 enters housing 22.That is, pallet 24 enters housing 22 along slide rail 30.Retention device (teat 26 or induction installation 60) is arranged at the top of slide rail 30, enters inlet 222 ends of housing 22 near pallet 24.The position of retention device enters housing 22 for considering to prevent the disc 10 that non-predetermined way is placed.

Embodiment of the present utility model utilizes retention device to prevent to enter housing 22 with the disc 10 that non-predetermined way is placed, and to avoid bad with disc 10 intermediate plates of placing with non-predetermined way because of rotating disk 14, and causes disc 10 scratches.In other words, when pallet 24 carried the disc 10 of normal placement, disc 10 can enter housing 22 according to normal mode of operation.When pallet 24 carries the disc 10 of non-predetermined way placement, retention device with the appropriate location setting, no matter be that the touch sensor 60 of teat 26, second embodiment of first embodiment or other can be detected disc is placed function with non-predetermined way induction installation, all can bring into play the disc 10 that the utility model prevents that non-predetermined way from placing and enter the effect of housing, thereby reach the purpose of avoiding the disc scratch.

Claims

1. a disc data access device that prevents the disc scratch comprises: a housing; One in order to carry the pallet of a disc, it is characterized in that, in described housing, is provided with a retention device that is used to avoid enter with the disc that non-predetermined way is positioned over pallet housing.

2. disc data access device as claimed in claim 1 is characterized in that, this retention device is an induction installation, is positioned over the disc that this pallet enters this housing with non-predetermined way, touches this induction installation, and this induction installation makes this pallet stop to move.

3. disc data access device as claimed in claim 2, it is characterized in that, this induction installation comprises at least one touch inductor, be arranged at a side that enters the inlet of this housing near this pallet, and this touch inductor touches with the disc that this non-predetermined way is placed, and makes this pallet stop to move.

4. disc data access device as claimed in claim 3, it is characterized in that, comprise that further this pallet of at least one qualification enters the slide rail of the stroke of this housing, and this touch inductor is arranged at the top of this slide rail, this touch inductor touches with the disc that this non-predetermined way is placed, and makes this pallet stop to move.

5. disc data access device as claimed in claim 2, it is characterized in that, this disc data access device further comprises one in order to drive the drive unit that this pallet moves, be positioned over the disc that this pallet enters this housing with non-predetermined way, touch this induction installation, make this drive unit stop to drive moving of this pallet.

6. disc data access device as claimed in claim 1 is characterized in that this retention device is a teat, is arranged at a side that enters the inlet of this housing near this pallet, for preventing that the disc that this non-predetermined way is placed from entering this housing.

7. disc data access device as claimed in claim 6, it is characterized in that comprise that further this pallet of at least one qualification enters the slide rail of this housing stroke, it is arranged in the housing, this teat is arranged at the top of this slide rail, for preventing that the disc that this non-predetermined way is placed from entering this housing.

8. disc data access device as claimed in claim 6 is characterized in that, the material of this teat is plastics.

9. disc data access device as claimed in claim 6 is characterized in that, the material of this teat is a resilient material.