CN1168085C

CN1168085C - Optical disk bearing device

Info

Publication number: CN1168085C
Application number: CNB001297635A
Authority: CN
Inventors: 黄伟煜
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2000-10-11
Filing date: 2000-10-11
Publication date: 2004-09-22
Anticipated expiration: 2020-10-11
Also published as: CN1347110A

Abstract

The present invention relates to an optical disc loading apparatus, and more particularly, to a loading apparatus for an optical disc drive having an eject tray. The bearing device includes one CD platform moving up and down and one newly designed tray moving mechanism, and the CD module and the motor rotating disc are fixed for setting CD on the motor rotating disc or raising CD off the motor rotating disc and withdrawing from the CD driver with the tray.

Description

Optical disk supporter

The present invention relates to a kind of optical disk supporter, refer in particular to a kind of CD drive that withdraws from the formula pallet that is applied to have, in order to discs is taken in or the bogey of the driver that ejects CD.

In at present known CD drive, its disc bearing device (Loader) major part all is to lift the mode that bare engine module (Mecha) moves up and down, to reach the sub-motor rotating disc of compact disk sheet placing (Turntable) or the purpose of the sheet that ejects CD.And because the space constraint of overall optical disk drive is comparatively strict, so in order to reach the purpose that bare engine module is moved up and down, the part of its gear train and sequential design are comparatively complicated.

(US 4 at United States Patent (USP), 607,361) in the technology that number is disclosed, bare engine module is fixed design, discs but discs is positioned over the motor rotating disc or removes from the motor rotating disc by a flat board that moves up and down (Platform), at this technology middle plateform is to be coupled in one to be located in the tip chute of pallet, end at flat board also is connected with a spring, when pallet begins to eject CD driver, utilize the dull and stereotyped flat board that makes of elastic force pulling of spring to be moved upward to the top of tip chute, and discs is lifted from the surface of motor rotating disc along tip chute.Otherwise, when discs is positioned over the motor rotating disc, pallet will utilize tip chute that the discs that flat board both had been placed on the flat board is moved down along tip chute when regaining CD drive, and discs is positioned over the motor rotating disc, and the dull and stereotyped at the same time hook of being located at dull and stereotyped top that also utilizes is suppressed lever-type CD pressing plate pulling downwards on surface in discs.In this known technology, in order to the flat board of carrying disc sheet in the last process of leaving the motor rotating disc, do not have suitable guide element and guarantee that flat board vertically upwards leaves the motor rotating disc, so must partly come the direct light disc by the jack-post that the motor rotating disc wherein passes the discs center in the moving process that flat board upwards leaves, this design might cause discs to be stuck in jack-post and to influence the motion of lifting discs.

In the known United States Patent (USP) technology of above-mentioned this part, because the CD pressing plate is a kind of lever design, therefore will need bigger height when lifting the CD pressing plate in addition, and cause the required space of CD drive to increase, volume increases.

The objective of the invention is to propose a kind of optical disk supporter of forming by pedestal, CD platform, movable tray, disc press unit, magnet and retainer, the action that it can simplify the internal structure of an organization, reduce part and simplify assembling mode, reduced volume, thus the existing in prior technology problem solved.

The technical solution adopted in the present invention is that it includes:

One pedestal, it has a driver element, and a top cover and is fixedly arranged on the motor rotating disc of this pedestal;

One CD platform, it has the loading end of a middle body hollow in order to the carrying disc sheet, with a plurality of this loading end male parts on every side that on average are fixedly arranged on, this CD platform can be along the axis of this motor rotating disc, in this pedestal, flatly move back and forth between a lower coupling position and the higher separation point position, this loading end is to be lower than this motor rotating disc when this coupling position, in order to compact disk sheet placing in this motor rotating disc, this loading end is lifted away from this motor rotating disc with this discs when this separation point position;

One movable tray, it is by this drive unit drives, and one withdraw from this pedestal move back the sheet position and one the income being written between the position of this pedestal move back and forth, this movable tray has left side wall and right side wall, on this left side, right side wall has guiding groove a plurality of and this male part coupling, this guiding groove is the oblique up extension of direction of returning this pedestal towards this movable tray, move at this movable tray and to utilize this CD platform of this guiding groove interlock when this is written into the position to this coupling position, when this withdraws from the position and moves, this CD platform is raised to this separation point position at movable tray, and this CD platform is moved to this synchronously moves back the sheet position;

One disc press unit, it includes a back up pad, an and disc platen that is suspended to this back up pad, this back up pad is the top that is overlapped in this CD platform, this back up pad has the left sway brace and the right sway brace of the moving direction both sides that lay respectively at this movable tray, and the coupling jaw that is fixedly arranged on the axial two ends of arbitrary sway brace, this coupling jaw has the coupling aperture of an opening direction towards the exit axis of this movable tray, reciprocation by this male part and this coupling jaw, and this back up pad and this disc platen are moved downward to the pressing position of this discs of compacting, or upwards be raised to a non-pressing position, this CD platform moves back the sheet direction in company with this movable tray towards this and moves when this non-pressing position, and this male part also can leave this coupling aperture;

One magnet in order to this disc platen is adsorbed in the top cover of this pedestal, and maintains this non-pressing position; And

One is fixedly arranged on the retainer of this pedestal, it is a kind of shell fragment, the one end is installed in the left side wall and the right side wall of this pedestal respectively, end has elasticity and has a kind of left sway brace and outstanding prominent point of right sway brace towards this back up pad, in order to this disc press unit is maintained at this non-pressing position.

The invention has the advantages that, because its bare engine module and motor rotating disc adopt fixed design, discs is supported by the CD platform, and along with raising or descending motion coupling or leave the motor rotating disc of CD platform, then be coupled as for disc pressing plate at the CD platform in order to the compacting discs, and with the CD platform raise or descending motion is synchronously done to rise or the straight reciprocating motion that presses down, thereby overcome the problem that the disc pressing plate takes up room in the prior art, reach the action that simplifies the internal structure of an organization, reduce the part number of disc bearing mechanism and simplify assembling mode, and the purpose of dwindling disc bearing mechanism requisite space.

Fig. 1 is a detailed construction exploded view of the present invention.

Fig. 2 A is local structure figure of the present invention, and interlock CD platform dropped to the situation of coupling position when the show events pallet was taken in pedestal fully.

Fig. 2 B is local structure figure of the present invention, and the show events pallet withdraws from the situation that interlock CD platform at the beginning of the pedestal rises to the separation point position.

Fig. 3 A is local structure figure of the present invention, shows that when the CD platform rose to the separation point position, movable tray drove the situation that the CD platform withdraws from pedestal.

Fig. 3 B is the structure upward view of Fig. 3 A, and the situation of the lower surface of CD platform is withstood on the top of demonstration block piece.

Fig. 4 A is local structure figure of the present invention, shows the relation of back up pad prominent point of left sway brace and retainer in the moving process that rises.

Fig. 4 B is local structure figure of the present invention, shows that the prominent point of retainer supported the situation of the bottom margin of left sway brace when back up pad rose to non-pressing position.

Fig. 5 A is the first kind of embodiment structural map that utilizes magnetic attraction disc platen.

Fig. 5 B is the second kind of embodiment structural map that utilizes magnetic attraction disc platen.

Fig. 6 is local structure figure of the present invention, shows that the disc platen is compressed on discs by deadweight the situation of motor rotating disc.

Further specify preferred embodiment of the present invention in conjunction with above-mentioned each accompanying drawing now, as shown in Figure 1, it is a kind of CD drive that withdraws from the formula pallet that has, discs is the surface that is placed at a kind of optical disk supporter, eject CD along with moving of optical disk supporter driver or regain in the CD drive, and technology proposed by the invention is to drive the optical disk supporter of moving CD sheet in the device relevant for this kind at CD.

The optical disk supporter that the present invention is designed, its main structure includes: a pedestal 10, one CD platforms 20, one movable trays 30, with a disc press unit 40; Discs is carried by CD platform 20, CD platform 20 then is to be installed on movable tray 30, along with movable tray 30 one withdraw from pedestal 10 move back a sheet position and an income pedestal 20 be written into motion reciprocal between the position, when CD platform 20 along with movable tray 30 is retracted into pedestal 10 inside, movable tray 30 is also driving CD platform 20 and disc press unit 40, the motion of synchronously raising and descending, in order to discs 50 is placed in a motor rotating disc 11 that is fixedly arranged on pedestal 10, as shown in Figure 6, or discs 50 lifted from motor rotating disc 11, so that again withdraw from pedestal 10 along with the motion of movable tray 30.

Pedestal 10, basically be a kind of box element of hollow, at least the left side wall 101a and the right side wall 101b that include moving direction (shown in arrow A among the figure) both sides that lay respectively at movable tray 30, same end at left side wall 101a and right side wall 101b has one with inlet 103, can freely pass in and out pedestal 10 for movable tray 30, has a motor rotating disc 11 in the pedestal 10, one driver element 12 and other CD drive necessary control circuit and related elements (not shown), driver element 12 is in order to drive movable tray 30 in a reciprocal motion between the position (shown in Fig. 2 A) that is written into that pedestal 20 is taken in sheet position (as shown in Figure 3A) and of moving back of withdrawing from pedestal 10, therefore driver element 12 can be a kind of including: be fixedly arranged on the motor 120 and reduction gear 121 of pedestal 10, and be fixedly arranged on movable tray 30 relevant position and with the design of the tooth bar 122 of reduction gear 121 engagements; Motor rotating disc 11 is fixed on a lower position of pedestal 10, is placed above it discs 50 in order to rotation.

CD platform 20, loading end 21 with a middle body hollow is in order to carrying disc sheet 50, with a plurality of be fixedly arranged on CD platform 20 around and outwards outstanding

male part

22a, 22b, 22c, 22d, CD platform 20 can be at the left and right sidewall 101a of pedestal 10, between the 101b, along the axis direction of motor rotating disc 11, between a lower coupling position and a higher separation point position, move back and forth, and in the process that moves the maintenance level; The loading end 21 of CD platform 20 is to be lower than motor rotating disc 11 when coupling position, so that motor rotating disc 11 can be given prominence on the loading end 21 that central portion is hollow, by this discs 50 is placed in motor rotating disc 11, otherwise the loading end 21 of CD platform 20 will be higher than motor rotating disc 11 when the separation point position, so that discs 50 is lifted away from motor rotating disc 11 (shown in Fig. 2 B).

Movable tray 30, basically be a kind of shaped as frame element of rectangle, and be centered around the outer peripheral edges of CD platform 20, movable tray 30 includes at least: lay respectively at the left side wall 301a and the right side wall 301b of the moving direction both sides of movable tray 30, and in order to be connected the front panel 302 of left and right sidewall 301a, 301b.On a left side,

right side wall

301a, 301b has a plurality of and male part

22a CD platform

20,22b, 22c, the guiding groove 31a of 22d coupling, 31b, 31c, 31d, guiding

groove

31a, 31b, 31c, the oblique up extension of direction that 31d returns pedestal 10 towards movable tray 30, guiding

groove

31a, 31b, 31c, the least significant end of 31d is an opening shape, and a plurality of male part 22a of

CD platform

20,22b, 22c, 22d be exactly from lower to upper since then opening be loaded into guiding

groove

31a, 31b, 31c, 31d, utilize the guiding groove 31a of this oblique design, 31b, 31c, 31d, just the reciprocal strength that movable tray 30 can be moved horizontally is converted into CD platform 20 is raised or the power-assisted of falling.

Disc press unit 40, include a back up pad 41, an and disc platen 42 that is suspended to back up pad 41, disc platen 42 is that the mode with loosening cooperation is suspended in a perforation 410 that runs through back up pad 41, and can freely in perforation 410, move up and down, back up pad 41 is overlapped in the top of CD platform 20, so as back up pad 41 under be pressed in the CD platform 20, can make disc platen 42 discs 50 is compressed on motor rotating disc 11 (as shown in Figure 6) by deadweight; Back up pad 41 also includes: the left sway brace 43a and the right sway brace 43b that lay respectively at the moving direction both sides of movable tray 30, and the coupling jaw 44a that is fixedly arranged on the axial two ends of

arbitrary sway brace

43a or 43b, 44b, 44c, 44d, left side sway brace 43a and right sway brace 43b spacing each other are slightly larger than the transverse width of movable tray 30, and the root edge of left sway brace 43a and right sway brace 43b is straight surface, drops on the male part 22a of CD platform 20 just, 22b, 22c, the top of 22d that is to say the male part 22a of

CD platform

20,22b, 22c, 22d must have enough length, so that pass the guiding groove 31a of

movable tray

30,31b, 31c, 31d, and slightly outstanding.

Coupling jaw 44a, 44b, 44c, the opening direction of 44d all withdraws from the direction of pedestal 10 towards movable tray 30, when CD platform 20 under the driving of movable tray 30 during along the moving axially of motor rotating disc 11,

male part

22a, 22b, 22c, 22d and

coupling jaw

44a, 44b, 44c, 44d will keep the relation of coupling, therefore, when disc press unit 40 drops to aforesaid coupling position along with CD platform 20, back up pad 41 and disc platen 42 will be moved downward to the pressing position (as shown in Figure 6) of a compacting discs 50 synchronously, and disc platen 42 can be compressed on the surface that motor revolves capstan 11 with discs 50 by the weight of himself at this moment; Otherwise, when disc press unit 40 is moved upward to the off-position along with CD platform 20 (shown in Fig. 5 A and Fig. 5 B), but disc platen 42 can attract a magnetic element 421 of being located in the disc platen 42 by a magnet 45, and disc platen 42 is maintained a non-pressing position of leaving the surface of discs 50, then CD platform 20 along with movable tray 30 towards moving back the sheet direction when moving,

male part

22a, 22b, 22c, 22d will all leave

coupling jaw

44a, 44b, 44c, 44d, and two male part 22a are only arranged, 22d heads on the root edge of left sway brace 43a and right sway brace 43b respectively, and the root edge at left sway brace 43a and right sway brace 43b slides, and at the same time, the both sides, rear end of back up pad 41 are also by a kind of retainer 13a that is installed in

pedestal

10,13b maintains present height, to prevent 40 inclinations of disc press unit or to fall down.

Retainer

13a, 13b is installed in the left side wall 101a and the right side wall 101b of pedestal 10 respectively, they are a kind of shell fragments, the one end is fixed on the left side wall 101a or the right side wall 101b of pedestal 10, end has elasticity and has a kind of left sway brace 43a and outstanding prominent point 131 of right sway brace 43b towards back up pad 41, these prominent point 131 lucky mobile routes at left sway brace 43a and right sway brace 43b, when left sway brace 43a and right sway brace 43b are moved upward to off-position near CD platform 20 along with back up pad 41, retainer 13a, the prominent point 131 of 13b will be subjected to left sway brace 43a and squeezing of right sway brace 43b and outwards open, shown in Fig. 4 A, when back up pad 41 is moved upwards up to the off-position of CD platform 20, just close to each other again, the bottom margin of the right sway brace 43b of left sway brace 43a this moment just can ride over retainer 13a, on the prominent point 131 of 13b, shown in Fig. 4 B, cooperate aforementioned two male part 22a that head on the root edge of left sway brace 43a and right sway brace 43b respectively again, 22b can prevent that just CD press unit 40 from dropping.Otherwise, when CD platform 20 is retracted into pedestal along with movable tray 30 once again, several male parts 22a of

CD platform

20,22b, 22c, 22d are coupled into

coupling jaw

44a, 44b again, 44c, 44d, through the strength that movable tray 30 moves down CD platform 20 and back up pad 41, the left sway brace 43a of back up pad 41 and right sway brace 43b just can cross retainer 13a again, the prominent point 131 of 13b and moving down, certainly, back up pad 41 is crossed retainer 13a, the prominent point 131 of 13b in the moving process that rises for convenience, we can be at the top design lead angle 431 of left sway brace 43a and right sway brace 43b, shown in Fig. 4 A.

Aforesaid magnet 45 can have the structure of several different conditions on the implementation, shown in Fig. 5 A, it sets firmly a magnet 45 at the top cover 14 of pedestal 10, but and at magnetic element 421 of interior arrangement (for example iron plate) of disc platen 42, when in case disc press unit 40 is moved upward to the off-position along with CD platform 20, disc platen 42 at first will be attracted by magnet 45 and be adsorbed on top cover 14, even discs 50 and CD platform 20 are taken out of pedestal 10 by movable tray 30, discs 50 can not bump with the disc platen 42 of suspention yet.Another kind of feasible embodiment then shown in Fig. 5 B, but top cover 14 make by magnetic material (as iron plate), and magnet 45 is fixed within the disc platen 42, can reach identical effect.

Back up pad 41 in order to ensure disc press unit 40 is carried out elevating movement generation deflection or the situation of blocking, a plurality of male part 22a that match each other, 22b synchronously, 22c, 22d and guiding

groove

31a, 31b, 31c, 31d will be evenly distributed in around CD platform 20 and the movable tray 30; In addition, at the left and right sidewall 101a of pedestal 10, the guide surface 102a that 101b also designs similar track function, 102b, 102c, 102d, in order to back up pad 41 only being limited in can sliding up and down along the axis direction of motor rotating disc 11, of the present invention graphic in, this

guide face

102a, 102b, 102c, 102d are the designs of a kind of right angle face, can certainly be other designs with same function.

In the turnover position of pedestal 10 near movable tray 30, also be installed with a

block piece

15a, 15b, its effect is to be used for guaranteeing that CD platform 20 is at no

show guiding groove

31a, 31b, 31c, before the off-position of the peak of 31d, can under the stopping of 15b, only can move up and down at this block piece 15a along the axis direction of motor rotating disc 11, in case CD platform 20 rises and arrives off-positions and along with movable tray 30 moves towards the direction that withdraws from pedestal 10, block piece 15a, the lower surface (shown in Fig. 3 B) of CD platform 20 can be withstood in the top of 15b, prevent that it from dropping in the moving process that withdraws from pedestal 10.Certainly

block piece

15a, 15b might not be the element of column, as long as have the CD of obstruction platform 20 both movable tray 30 withdraw under the condition of pedestal 10, it also can be a kind of flat design.

Though technological means of the present invention discloses as above by above-mentioned preferred embodiment; right its is not in order to limit the present invention; any personage who is familiar with this skill; without departing from the spirit and scope of the present invention; when the change that can do a little and profit metal plate, so protection scope of the present invention should be with being as the criterion that accompanying claims protection is defined.

Claims

1. A disc carrying device, characterized in that it comprises:

A base, which has a drive unit, a top cover and a motor rotating disk fixed on the base;

An optical disk platform, which has a central part of the hollow carrying surface for carrying optical disks, and a plurality of coupling parts evenly fixed around the carrying surface, the optical disk platform can be along the axis of the motor rotating disk, on the base horizontally reciprocating movement between a lower coupling position and a higher separation position in the seat, in the coupling position, the carrying surface is lower than the motor turntable for placing the disc on the motor turntable, the carrying surface lifts the optical disc away from the motor spinner when in the disengaged position;

A movable tray, which is driven by the drive unit, and reciprocates between a film unloading position withdrawn from the base and a loading position received into the base, the movable tray has a left side wall and a right side wall. The left and right side walls have a plurality of guide grooves coupled with the coupling, and the guide grooves extend obliquely upward toward the direction in which the movable tray returns to the base, and are used when the movable tray moves to the loading position. The guide groove links the optical disc platform to the coupling position, lifts the optical disc platform to the separation position when the movable tray moves toward the withdrawal position, and synchronously moves the optical disc platform to the ejection position;

A disk pressing unit, which includes a support plate, and a disk pressure plate suspended from the support plate, the support plate is superimposed on the top of the disc platform, and the support plate has a moving direction respectively located at the movable tray The left support arm and the right support arm on both sides, and the coupling jaw fixed on the axial ends of any support arm, the coupling jaw has a coupling opening whose opening direction faces the exit direction of the movable tray. The interaction between the member and the coupling jaw moves the support plate and the disc platen downward to a pressing position for pressing the optical disc, or lifts up to a non-pressing position, in which When the disc platform moves towards the ejecting direction along with the movable tray, the coupling part can also leave the coupling port;

a magnet for attracting the disc presser to the top cover of the base to maintain the non-pressing position; and

A holder fixed on the base, which is a kind of elastic piece, one end of which is respectively fixed on the left side wall and the right side wall of the base, the end is elastic and has a left support arm facing the support plate The protruding point protruding from the right support arm is used to maintain the disc pressing unit in the non-pressing position.

2. The optical disc carrier device as claimed in claim 1, wherein the drive mechanism includes: a motor and a reduction gear mechanism fixed on the base, and fixed on the relevant position of the movable tray and A rack meshed with the reduction gear mechanism.

3. The disc carrier device as claimed in claim 1, characterized in that the left and right side walls of the base also have a guide surface similar to a track function, which limits the support plate to only along the The axis direction of the motor rotating disk slides up and down.

4. The optical disc carrier device as claimed in claim 1, wherein the lowest end of the guide groove is an opening, and a plurality of coupling parts of the optical disc platform can be installed from the bottom to the top of the opening. into the guide slot.

5. The disc carrying device as claimed in claim 1, characterized in that the distance between the left support arm and the right support arm of the support plate is slightly greater than the lateral width of the movable tray, and the distance between the left support arm and the right support arm The bottom edge is a straight surface, which just falls on the top of the coupling part of the disc platform, so that the coupling part can freely enter and exit the left support arm and the right support arm along the bottom edges of the left support arm and the right support arm respectively. Coupling jaws at both axial ends of the support arm.

6. The optical disc carrier device according to claim 1, wherein the base is fixedly provided with a stopper near the position where the movable tray enters and exits, so as to prevent the coupling member of the optical disc platform from moving in and out. Before reaching the release position of the highest point of the guide groove, the disc platform is limited to move up and down only along the axis direction of the motor rotating disc, and when the disc platform rises to the release position and exits with the movable tray towards The direction of the base moves, and the top of the blocking member bears against the bottom surface of the disc platform to prevent it from falling during the moving process of exiting the base.

7. The optical disc carrier device according to claim 1, wherein the disc pressure plate is suspended from a perforation through the support plate in a loose fitting manner, and can freely move up and down in the perforation To move in such a way that the optical disk is pressed against the motor rotating disk by the self-weight of the optical disk pressing plate when in the pressing position.

8. The optical disc carrier device as claimed in claim 1, wherein the magnet is fixed on the top cover for attracting a The magnetically attractable element fixed on the disc pressing plate attracts the disc pressing plate to the non-pressing position.

9. The optical disc carrier device as claimed in claim 8, wherein the magnetically attractable element is an iron sheet.

10. The optical disc carrier device as claimed in claim 1, wherein the top cover is made of a magnetic material, and the magnet is fixed on the disc platen for mounting on the supporting plate. When the disc platform rises to the releasing position, the disc pressing plate is attracted to the top cover and kept at the non-pressing position.

11. The disc carrier device as claimed in claim 1, wherein the protruding point is just in the moving path of the left support arm and the right support arm, and can be pushed outward by the left support arm and the right support arm open, to move up to the release position when the support plate supports the bottom edge of the left support arm and the right support arm, and then cooperate with the aforementioned coupling piece against the bottom edge of the left support arm and the right support arm to prevent the The disc pressing unit has dropped.

12. The optical disc carrier device as claimed in claim 11, wherein the left support arm has a chamfer with the top edge of the right support arm, so that the support plate can pass over the protrusion of the holder during the upward movement. point.