CN1716412A

CN1716412A - Optical drive

Info

Publication number: CN1716412A
Application number: CN 200510076389
Authority: CN
Inventors: 刘健华
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2004-06-08
Filing date: 2005-06-07
Publication date: 2006-01-04
Also published as: TWI257082B; TW200540800A

Abstract

The optical disk device includes a main body and a tray. The main body has an inner wall and a first protrusion disposed thereon. The tray is movably disposed in the main body between an open position and a closed position, having two sides parallel to the moving direction and a second protrusion formed thereon. The first protrusion abuts the second protrusion when the tray is at the open position. The first protrusion separates from the second protrusion when the tray is at the closed position.

Description

CD-ROM drive

Technical field

The present invention relates to a kind of pellet type CD-ROM drive, particularly relate to a kind of CD-ROM drive that reduces the swing that pallet produced when stretching out body.

Background technology

Under the situation about more and more popularizing in the use of CD-ROM drive, manufacturer has been considered as CD-ROM drive one of basic outfit in the computer system at present.Figure 1A is the synoptic diagram of a known pellet type CD-ROM drive 10, and it has a CD-ROM drive bulk 11 and a pallet 12.Pallet 12 has a depressed part 13, is used for the carrying disc sheet.CD-ROM drive bulk 11 has a plummer 14 and a driver module 17, and driver module 17 comprises motor 171 and gear set 172 at least, is used to drive pallet 12.One Spindle Motor 15 and an optical read head 16 are set on the plummer 14.After in driver module 17 drives pallets 12 income CD-ROM drives, the plummer 14 in the CD-ROM drive rises, and Spindle Motor 15 drives the discs rotation, and can read the data on the discs or data are write discs by optical read head 16.

Vertical view when Figure 1B stretches out for the pallet of known CD-ROM drive 10.Shown in Figure 1A and 1B, the side of known CD-ROM drive 10 in pallet 12 bottom surfaces has a tooth bar 121, the motor 171 of driver module 17 and gear set 172 move by the side 12a drive pallet 12 of tooth bar 121 by pallet 12, the opposite side 12b of pallet 12 only is driven, thereby be called slave end 12b, and need have suitable gap between slave end 12b and the body 11, pallet 12 turnover just can be smooth and easy.

But when the driver module 17 drive pallets 12 of CD-ROM drive 10 are stretched out by CD-ROM drive 10 inside, gear set 172 drives pallet 12 by the tooth bar 121 of the master end 12a of pallet 12, therefore the pace of the master end 12a of pallet 12 is very fast, the pace of opposite side (slave end) 12b is slower, the pallet 12 of CD-ROM drive 10 will be to low-angle of slave end 12b beat, and stretches out CD-ROM drive 10 in the mode shown in Fig. 2 A.

Shown in Fig. 2 B, after pallet 12 stretched out fully, when motor 171 counter-rotatings made CD-ROM drive 10 regain pallet 12, pallet 12 was towards small angle theta of master end 12b beat.The pallet 12 that has been offset will clash into body 11, gear set 172 drives pallet 12 by the tooth bar 121 of pallet 12 master end 12a then, therefore the astern speed of pallet 12 master end 12a is very fast, the astern speed of right side (slave end) 12b is slower, cause the pallet 12 of CD-ROM drive 10 to swing a small angle theta from right to left, moving when causing pallet 12 to return body 11 has some setbacks, be retracted in the CD-ROM drive 10 in the mode shown in Fig. 2 B, thus problems such as generation friction.

The problems referred to above not too can occur in the long CD-ROM drive of fuselage and pallet, when pallet extend out to outside location in by CD-ROM drive bulk, the pallet end also keeps a suitable length in CD-ROM drive bulk inside, pallet (slave end) angle of tilting to the right is less relatively, therefore when motor counter-rotating CD-ROM drive is regained pallet, the amplitude of fluctuation of pallet is also less, and is difficult for being discovered by the user.

But electronic product relatively tends to compact design at present, after the fuselage of CD-ROM drive shortens, the length of pallet 12 and body 11 also need shorten, when pallet 12 stretches out short type CD-ROM drive bulk 11, the distance that pallet 12 ends are retained in the CD-ROM drive bulk 11 is shorter, cause pendulum angle to increase considerably, produce the pendulum angle of about 5-10 degree.Therefore the amplitude of fluctuation when CD-ROM drive stretches out pallet and regains pallet strengthens, and causes the pallet turnover to have some setbacks, thereby produces problems such as noise, shortening CD-ROM drive life-span.

Summary of the invention

Therefore, the object of the present invention is to provide a kind of compact CD-ROM drive, pallet produces swing when preventing that CD-ROM drive from regaining pallet.

For achieving the above object, the invention provides a kind of CD-ROM drive, it comprises a main body and a pallet.Main body comprises an inwall and one first teat, and first teat is arranged on the inwall.The mode that pallet can move between an open site and an off-position is arranged on the main body.Pallet comprises two sidewalls and one second teat, and parallel sidewalls is in the moving direction of pallet, and second teat is arranged on the sidewall.Wherein, when pallet was positioned at the open site, first teat was against second teat; When pallet is positioned at off-position, first teat and second outshot from.

In a preferred embodiment, first teat comprises a curved edge and a S font surface, and second teat comprises a plane and a dip plane.When pallet was positioned at the open site, the plane was against curved edge.When pallet moved to the open site by off-position, moved along the dip plane on S font surface, and the curved edge contact plane.

In addition, pallet also comprises a bight, and the setting of second teat is adjacent to the bight.

In addition, main body comprises an opening, and the setting of first teat is adjacent to opening.

In addition, first teat is an elastic cantilever portion, is extended by inwall.

In addition, main body also comprises an opening, and first teat extends towards the direction of opening.

In addition, main body also comprises a driver module, is arranged on the distolateral of main body, and first teat is positioned at the opposite side of driver module towards driver module.

For making above-mentioned and other purpose of the present invention, feature and advantage can more obvious easy to understand, be elaborated especially exemplified by preferred embodiment and conjunction with figs. below.

Description of drawings

Figure 1A is the synoptic diagram of known CD-ROM drive;

Figure 1B is the vertical view of known CD-ROM drive;

Fig. 2 A is the vertical view of known CD ROM support tray when stretching out;

Fig. 2 B is known CD-ROM drive when motor counter-rotating, vertical view when pallet retreats;

Fig. 3 is the perspective exploded view of CD-ROM drive of the present invention;

Fig. 4 is the sectional perspective synoptic diagram by the pallet of the observation of the A direction among Fig. 3 A;

Vertical view when Fig. 5 stretches out for CD ROM support tray of the present invention;

Vertical view when Fig. 6 is CD ROM support tray of the present invention withdrawal body;

Fig. 7 is the local enlarged diagram of CD-ROM drive of the present invention first teat and second teat when pallet stretches out.

Embodiment

Fig. 3 is the perspective exploded view of CD-ROM drive of the present invention, pellet type CD-ROM drive 20 of the present invention has a CD-ROM drive bulk 21 and a pallet 22, CD-ROM drive bulk 21 has an inwall 211, an opening 30, a plummer 24 and a driver module 27, first teat 29 is arranged on the inwall 211, is adjacent to opening 30.In one embodiment, first teat 29 is elastic cantilever portions, is extended towards opening 30 by inwall 211.On the plummer 24 in the body 21 Spindle Motor 25 and an optical read head 26 are set.Driver module 27 comprises motor 271 and gear set 272 at least, is used to drive pallet 22.It should be noted that first teat 29 is arranged on the inwall 211 that is adjacent to opening 30 places, and with respect to driver module 27.The arrangement position of first teat 29 below is described.

The pallet 22 of CD-ROM drive 20 movably is arranged in the body 21 by driver module 27, and it has a depressed part 23 and one second teat, 28, the second teats 28 that are used for the carrying disc sheet and is arranged at a sidewall 22b and is positioned at the same side with first teat 29.CD-ROM drive 20 has a tooth bar 221 in pallet 22 bottom surfaces along sidewall 22a, and the motor 271 of driver module 27 and gear set 272 drive pallet 22 via tooth bar 221.And driver module 27 is positioned at the same side with tooth bar 221, and the sidewall 22a of pallet 22 is driven by the motor 271 and the gear set 272 of driver module 27, is also referred to as the master end.The opposite side 22b of pallet 22 is only driven, thereby is called slave end 22b.The slave end 22b of pallet 22 has a bight 222, and when pallet 22 complete openings, bight 222 is the part of pallet 22 in body 21.Second teat 28 is arranged on the slave end 22b of pallet 22, and is adjacent to bight 222.

Fig. 4 is the sectional perspective synoptic diagram by the pallet 22 of the observation of the A direction among Fig. 3 A.This figure can know and demonstrates first teat 29 and second teat 28.First teat 29 has a curved edge 291 and a S font surface 292.Second teat 28 has a dip plane 281 and a plane 282.

Driver module 27 drives pallet 22, and it is moved between an open site and an off-position along directions X.When pallet 22 was positioned at the open site, pallet 22 was stretched out by the body 21 of CD-ROM drive 20, as shown in Figure 5.When pallet 22 stretched out, second teat 28 was against first teat 29.Therefore, the external force F that driver module 27 is produced can make that unlikely generation is offset when pallet 22 stretches out fully by the reacting force R institute balance of first teat, 29 generations.

When motor 271 counter-rotatings, when CD-ROM drive 20 was regained pallet 22, when promptly pallet 22 was positioned at off-position, pallet 22 was accommodated in the body 21 of CD-ROM drive 20, as shown in Figure 6.At this moment, first teat 29 separates with second teat 28.Owing to when pallet 22 stretches out, keep the position of pallet 22 by first teat 29 and second teat 28, and then during pallet 22 is advanced, prevent the beat of pallet 22.Therefore, pallet 22 can pass in and out body 21 smoothly.

Fig. 7 is the local enlarged diagram of CD-ROM drive 20 of the present invention first teat 29 and second teat 28 when pallet 22 stretches out.Because first teat 29 is one to have the elastic cantilever portion on S font surface 292, when pallet 22 moved to the open site by off-position, pallet 22 was stretched out by

body

11, and 281 move along the dip plane on S font surface 292, and curved edge 291 contact planes 282.When pallet 22 stopped at the open site, the plane 282 of second teat 28 was resisted against on the curved edge 291 of first teat 29.On the other hand, when pallet 22 moves to off-position by the open site, the curved edge 291 of first teat 29 282 moves along the plane, and the dip plane 281 of S font surface 292 contacts second teat 28, and last first teat 29 separates with second teat 28.Therefore, moving except by driver module 27 controls of pallet 22 of the present invention also can be made pallet 22 unlikely generation skews by the collocation of first teat 29 and second teat 28.Therefore, pallet 22 can pass in and out body 21 smooth-goingly.Have, first teat 29 with S font surface 292 has elasticity again, contact second teat 28 that can be submissive, and then prevent the beat of pallet 22.First teat 29 and second teat 28 can be equal to and prevent beat mechanism.

(not shown) in modified example of the present invention, the shape of first teat and second teat is interchangeable.Promptly second teat is an elastic cantilever portion shape, is extended by the opening of pallet towards main body, and it comprises S font surface and curved edge.First teat is hard teat, and it has a dip plane and a plane.When pallet is positioned at off-position, first teat and second outshot from.When pallet moved to the open site by off-position, moved along the dip plane of first teat on the S font surface of second teat, and the curved edge of second teat contacts the plane of first teat.

Because CD-ROM drive of the present invention is when pallet extend out to the open site, proofread and correct the moving direction of pallet by first teat and second teat, revising the angle that pallet deflects, so the present invention revises the beat of pallet simultaneously during pallet is advanced, so be difficult for being discovered by the user.In addition, when CD-ROM drive was regained pallet, the beat of this pallet was corrected, so pallet can be accommodated in the body smoothly.

Though the present invention discloses as above with preferred embodiment; but it is not that any those skilled in the art is not breaking away from design of the present invention and scope in order to qualification the present invention; can make various changes and retouching, so protection scope of the present invention is as the criterion with accompanying claims.

Claims

1. CD-ROM drive comprises:

One main body has an inwall and one first teat, and described first teat is arranged on the described inwall; And

One pallet, be arranged on the described main body in the mode that can between an open site and an off-position, move, described pallet has two sidewalls and one second teat, and described parallel sidewalls is in the moving direction of described pallet, and described second teat is arranged on one of them of described sidewall;

Wherein, when described pallet was positioned at described open site, described first teat was against described second teat; When described pallet is positioned at described off-position, described first teat and described second outshot from.

2. CD-ROM drive as claimed in claim 1, wherein, described first teat comprises a curved edge, and second teat comprises a plane, and when pallet was positioned at the open site, the plane was against curved edge.

3. CD-ROM drive as claimed in claim 2, wherein, described first teat also comprises a S font surface, second teat also comprises a dip plane, when pallet moved to the open site by off-position, moved along the dip plane on S font surface, and the curved edge contact plane.

4. CD-ROM drive as claimed in claim 1, wherein, described first teat comprises a plane, and second teat comprises a curved edge, and when pallet was positioned at the open site, the plane was against curved edge.

5. CD-ROM drive as claimed in claim 4, wherein, described first teat also comprises a dip plane, second teat also comprises a S font surface, when pallet moved to the open site by off-position, moved along the dip plane on S font surface, and the curved edge contact plane.

6. CD-ROM drive as claimed in claim 1, wherein, described pallet also comprises a bight, the setting of second teat is adjacent to the bight.

7. CD-ROM drive as claimed in claim 1, wherein, described main body comprises an opening, the setting of first teat is adjacent to opening.

8. CD-ROM drive as claimed in claim 1, wherein, described first teat is an elastic cantilever portion, it is extended by inwall.

9. CD-ROM drive as claimed in claim 1, wherein, described main body also comprises an opening, first teat extends towards the direction of opening.

10. CD-ROM drive as claimed in claim 1, wherein, described main body also comprises a driver module, is arranged on the distolateral of main body, first teat is arranged on the opposite side of driver module.

11. CD-ROM drive as claimed in claim 1, wherein, described second teat is an elastic cantilever portion, and it is extended by pallet.

12. CD-ROM drive as claimed in claim 11, wherein, described main body also comprises an opening, and second teat extends towards the direction of opening.