CN101471107B - Position limiter of CD player - Google Patents
Position limiter of CD player Download PDFInfo
- Publication number
- CN101471107B CN101471107B CN200710305422XA CN200710305422A CN101471107B CN 101471107 B CN101471107 B CN 101471107B CN 200710305422X A CN200710305422X A CN 200710305422XA CN 200710305422 A CN200710305422 A CN 200710305422A CN 101471107 B CN101471107 B CN 101471107B
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- Prior art keywords
- player
- movement
- sliding part
- gear
- gear drive
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Abstract
The invention discloses a stop block of an optical disk drive, wherein a movement is arranged in the optical disk drive, a driving unit rotates a wheel for advancing and retreating a disk, and driving a sliding element to slide to move the wheel, wherein the stop block which moves along the wheel is arranged on the driving unit, when the disk is arranged in the optical disk drive, the sliding element moves to the position which is separated with the movement, and the sliding element presses down to move the wheel, the stop block is separated from the moving range of the movement, when no disk exists in the optical disk drive, the sliding element moves to the position fixing the movement and is separated from the wheel, and the stop block moves to the front end of the movement, which limits the moving range of the movement to prevent hitting gear teeth.
Description
Technical field
The present invention relates to a kind of CD player, especially relate in the CD player, the stop means of moving range when being subjected to impacting in order to the restriction movement.
Background technology
Because the data mark on the discs is quite small, CD player must utilize accurate optical devices to reach gear train fast, and complex reaction is control system rapidly, correctly the data on the writable disc sheet.In order to prevent external shock effect read-write, CD player need be taked safeguard measure, to reach buffering and shock preventing.
As shown in Figure 1, for having the side of suction-type optical drive 100 now.Suction-type optical drive 100 will be equipped with the movement 101 of precision component, utilize damping (Damping) 102 to be supported on CD player 100 casings 103 bottom surfaces, impact vibrative influence to reduce.Movement 101 and in the rear end is convexly equipped with a fixed leg 104 to side, and fixed leg 104 can embed in the limiting groove 106 of a sliding part 105 rear ends, strengthens suppressing the vibration of movement 101.Sliding part 105 is broadcast by the discs of inserting (not shown), allows sliding part 105 move to CD player 100 the place aheads as shown by arrows, makes the tooth bar 107 on it and then move forward, and is meshed with the driving gear set 108 of CD player 100.Then continue to drive sliding part 105 by driving gear set 108, resisting an end is fixed on the spring 109 that casing 103 and the other end be hooked on sliding part 105 and moves forward, the pivot pin 112 that allows front end oblique surface 110 thrust roller 111 of sliding part 105 protrude, make roller 111 after the driving discs enters CD player 100, be able to falling head and break away from the discs surface.Simultaneously, along with the limiting groove 106 that sliding part 105 advances, also can break away from the fixed leg 104 of movement 101, allow movement 101 under keeping away of damping 102 shaken support, the rotating disc sheet is read and write.
When CD player 100 backward rotation driving gear set 108 eject CD sheet, driving gear set 108 drives tooth bar 107, makes sliding part 105 slide backward, and oblique surface 110 breaks away from pivot pin 112, the roller 111 contact discs that rise drive the discs machine 100 that ejects CD by rolling.The limiting groove 106 that retreats along with sliding part 105, clamp fixed leg 104 once more, and moving back after sheet finishes, when driving gear set 108 stopped operating, the back stretch that is subjected to spring 109 retracted, and allowed the tooth bar 107 of sliding part 105 break away from driving gear set 108, and be fixed on CD player 100 rear ends, make movement 101 when carrying disc sheet not, the scope that restriction is moved is avoided clashing into the damage next-door neighbour and is waited for the mechanism that the direct light disc advances sheet.
Yet the sliding part 105 of existing CD player 100 only depends on spring 109 back stretch to be fixed on CD player 100 rear ends after breaking away from driving gear set 108.When CD player 100 is subjected to impacting, especially Portable or automobile-used CD player, sliding part 105 clips the impulsive force of movement 101 big inertia, the elastic force of antagonistic spring 109 is to front slide, the tooth bar 107 that collision closes on, cause the damage of the tooth bar 107 or driving gear set 108 gear teeth, particularly recently more fragile for the more weak plastic cement system gear of weight reduction and cost structure intensity.Gear one damage will cause the CD player can't normal operation, reduces the fiduciary level of CD player.Therefore, existing CD player still has problem to need to be resolved hurrily on movement spacing.
Summary of the invention
The object of the present invention is to provide a kind of position limiter of CD player, by a limited post is set on driving gear set, when making CD player not have discs, restriction movement moving range avoids damaging the gear teeth, to improve the reliability of CD player.
Another purpose of the present invention is to provide a kind of position limiter of CD player, utilizes limited post to rise or descend with roller, restriction or disengaging movement moving range, the shock-absorbing effect when normally reading and writing with the obstruction free movement.
In order to reach the purpose of aforementioned invention, position limiter of CD player of the present invention, in CD player, establish a movement, rotate a roller with the advance and retreat discs by gear unit, and drive the sliding part slip with shifting roller, a device of limiting on the gear unit moves with roller, when CD player does not have discs, sliding part moves to fixedly movement position and disengaging roller, and stop means then moves to the movement front end, restriction movement moving range, when CD player has discs, sliding part moves to and breaks away from the movement position, and presses down shifting roller, and stop means then breaks away from the movement moving range.
Gear unit further comprises a gear drive group, be located at the side of movement, the gear drive group is by the first gear drive portion, the second gear drive portion and the mutual transmission of linkage gear are formed, the first gear drive portion is in order to rotation roller, the second gear drive portion is in order to drive sliding part, linkage gear then with inside and outside location-plate respectively with the first gear drive portion, the second gear drive portion links, with the interlock first gear drive portion and second gear drive, stop means then is located on the interior location-plate of linkage gear and the binding of the second gear drive portion, and interior location-plate is convexly equipped with a limited post and forms stop means in CD player.When sliding part does not have discs in CD player, hold the rear end that is fixed on CD player by a spring, the tooth bar and the second gear drive portion on the sliding part are broken away from, and form a distance, this distance exceeds the spacing that stop means shifts near movement.When CD player has discs, move to the position of down-pressure roller, drive location-plate and move down, make the stop means on the location-plate break away from the movement moving range.
Description of drawings
Fig. 1 is the outboard profile of existing suction-type optical drive;
Fig. 2 is the CD player inner structure stereographic map that stop means of the present invention is set;
Fig. 3 is the partial enlarged drawing of Fig. 2 zone A;
Fig. 4 is the partial enlarged drawing of Fig. 2 area B;
Fig. 5 is the outboard profile of CD player of the present invention;
Fig. 6 breaks away from the stereographic map of movement for stop means of the present invention.
The main element symbol description
200 CD player
210 casings
211 clamping mechanisms
212 clamp seats
213 arcuate sockets
214 poke rods
215 fulcrums
216 pilot pins
217 bar heads
220 movements
221 Spindle Motors
222 fixed legs
230 gear units
231 drive motors
232 gear drive groups
233 rollers
234 first gear drive portions
235 second gear drive portions
236 linkage gears
237 outside fix plates
Location-plate in 238
239 pivot pins
240 sliding parts
241 flanges
242 limiting grooves
243 tooth bars
244 oblique surfaces
245 springs
250 stop means
251 limited posts
Embodiment
Relevant the present invention is for reaching above-mentioned purpose, and technological means that is adopted and effect thereof are lifted preferred embodiment now, and conjunction with figs. is illustrated as follows.
Please also refer to Fig. 2, Fig. 3, Fig. 4, wherein Fig. 2 is CD player 200 inner structures that stop means of the present invention is set, and Fig. 3 is that amplify the part of Fig. 2 zone A, and Fig. 4 is that amplify the part of Fig. 2 area B.CD player 200 of the present invention comprises casing 210, movement 220, gear unit 230, sliding part 240 and stop means 250.Movement 220 mainly is set in casing 210, and by gear unit 230 driving discs (scheming not show) location or disengaging movements 220, and driving sliding part 240 slidably reciprocates 250 disengagings of drive stop means or restriction movement 220 movings range.
Wherein, casing 210 has a hollow inside, and a clamping mechanism 211 is fixed in the upper end of hollow inside, and clamping mechanism 211 utilizes an end that is fixed in casing 210 to be pivot, does limited spinning upside down, and the clamp seat 212 of being located at front end is produced rise or descend.Clamping mechanism 211 rear ends one side is provided with an arcuate socket 213.One poke rod 214 is fixed near clamping mechanism 211 downsides the arcuate socket 213, rotates with fulcrum 215, makes pilot pin 216 epireliefs of poke rod 214 tail ends and passes arcuate socket 213, and move along arcuate socket 213.217 on the bar head of poke rod 214 front ends stretches out clamping mechanism 211 sides.
In addition, gear unit 230 comprises drive motor 231, gear drive group 232 and roller 233.Drive motor 231 is located at casing 210 front ends, and the power resources of CD player 200 advance and retreat sheets are provided.Gear drive group 232 is located at the side of casing 210, and the side of next-door neighbour's movement 220, is made up of the gear of the mutual transmission of several consecutives, wherein comprises the first gear drive portion 234, the second gear drive portion 235 and linkage gear 236.The first gear drive portion, 234 1 ends are linked to drive motor 231, are rotated by drive motor 231, and the other end rotates the roller 233 that crosses at nearly casing 210 front ends, utilize forward or reverse roller 233 that discs is entered or eject CD machine 200.The first gear drive portion 234 is at an end of live roller 233, and other is connected with a rotating outside fix plate 237.Outside fix plate 237 other ends are fixed in the outside of linkage gear 236, make the linkage gear 236 and the first gear drive portion 234 keep Nie to close.The second gear drive portion, 235 1 ends are connected with a rotating interior location-plate 238, and interior location-plate 238 other ends are fixed in the inboard of linkage gear 236, make the linkage gear 236 and the second gear drive portion 235 keep Nie to close.
Sliding part 240 is rectangular sheet, is located at casing 210 sides by poke rod 214 and gear drive group 232, by sliding before and after casing 210 restriction casings 210 sides.A flange 241 is established in the inboard of sliding part 240, when flange 241 is positioned at poke rod 214 and rotates on the mobile route of bar head 217.As shown in Figure 5, be CD player 200 sides of removal casing 210 sides of the present invention.Sliding part 240 is provided with a limiting groove 242 in the rear end, the size of limiting groove 242 just can embed for fixed leg 222, makes sliding part 240 can fix or break away from movement 220.Sliding part 240 nearly middle parts are provided with a tooth bar 243, can close with 235 Nie of the second gear drive portion or break away from, Nie is fashionable, and the second gear drive portion 235 that is subjected to drives advances or retreat, sliding part 240 front ends are an oblique surface 244, the path that oblique surface 244 moves is by the pivot pin 239 of roller 233 protrusion outside fix plates 237.The below of sliding part 240 is provided with a spring 245, spring 245 1 ends are fixed on casing 210, the other end then is hooked on sliding part 240, the elastic force of spring 245 is held sliding part 240 backward, make tooth bar 243 break away from the second gear drive portion 235, keep a spacing, and sliding part 240 is fixed on the rear end (please refer to Fig. 1) of casing 210, make limiting groove 242 embeddings live fixed leg 222, with fixing movement 220.
Refer again to Fig. 2, stop means 250 of the present invention inwardly is convexly equipped with a limited post 251 in interior location-plate 238 inboards, makes limited post 251 move and form and rise or descend with interior location-plate 238.When movement 220 no discs, sliding part 240 is fixed on the rear end of casing 210, sliding part 240 does not touch pivot pin 239, roller 233 is positioned at high point, and through outside fix plate 237 interlock linkage gears 236, location-plate 238 and then rises in making, cause limited post 251 transverse arrests in the front end of movement 220, disembark the spacing of core 220 less than movement 220 normal Oscillation Amplitudes, and tooth bar 243 distance that breaks away from the second gear drive portion 235 exceeds the spacing of limited post 251 and movement 220, and for example spacing is less than 2mm.Therefore when CD player 200 is subjected to clashing into, even the movement of preshoot 220, can bump against the limited post 251 of close together earlier, and limited post 251 preventions are advanced, be unlikely to drive sliding part 240 and move on, avoid the tooth bar 243 bump distances second gear drive portion 235 far away to cause damage via fixed leg 222 (please join Fig. 3).
Refer again to Fig. 3, when discs is inserted CD player 200, discs is to CD player 200 rear ends, the pilot pin 216 of discs periphery pusher poke rod 214, pilot pin 216 is moved along arcuate socket 213, impel poke rod 214 to rotate, allow other end bar head 217 promote flange 241 forward, sliding part 240 is moved forward with fulcrum 215.Refer again to Fig. 5, make the tooth bar 243 on the sliding part 240 and then move forward, with the second gear drive portion 235 mutually Nie close.Continue mobile sliding part 240 by the second gear drive portion 235 again, antagonistic spring 245 moves forward, and behind the discs location, the pivot pin 239 that oblique surface 244 thrust roller 233 of sliding part 240 are protruded highly descends roller 233 and breaks away from the discs surface.Simultaneously, stop means 250 disengaging situations of the present invention as shown in Figure 6, via outside fix plate 237 interlock linkage gears 236, location-plate 238 and then descends in making, and causes the front end of the limited post 251 disengaging movements 220 on it, with the distance of increase with movement 220, make spacing greater than movement 220 normal Oscillation Amplitudes,, also can break away from the fixed leg 222 of movement 220 along with the limiting groove 241 that sliding part 240 advances, allow movement 220 under keeping away of damping shaken support, have normal oscillation space.
Therefore, position limiter of CD player of the present invention can make limited post along with roller rises by on the interior location-plate of driving gear set a limited post being set, the movement front end in transverse arrest in no discs, and restriction movement moving range avoids damaging the gear teeth.Or make limited post along with roller descends, and breaking away from the movement moving range, the shock-absorbing effect when avoiding hindering movement normally to read and write is to improve the reliability of CD player.
The above person, only in order to convenient explanation preferred embodiment of the present invention, scope of the present invention is not limited to these preferred embodiments, and is all according to any change that the present invention did, and not breaking away under the spirit of the present invention, all belongs to the scope of claim of the present invention.
Claims (4)
1. position limiter of CD player, be located in the CD player, establish movement in the CD player, gear unit and sliding part, gear unit comprises drive motor, gear drive group and roller, the gear drive group comprises the first gear drive portion that is used to make the roller rotation, the linkage gear that is used to drive the second gear drive portion of sliding part and is used for the interlock first gear drive portion and the second gear drive portion, one end of the first gear drive portion is linked to drive motor, the other end rotates roller, the machine so that discs enters or ejects CD, one end of the second gear drive portion is connected with a rotating interior location-plate, the other end of location-plate is fixed in the inboard of linkage gear in being somebody's turn to do, make the linkage gear and the second gear drive portion keep engagement, inwardly be convexly equipped with a limited post in interior location-plate inboard, limited post is moved with interior location-plate and rise or descend, wherein, when CD player does not have discs, interior location-plate rises, limited post shifts near movement and transverse arrest in the front end of movement, disembark the spacing of core less than the normal Oscillation Amplitude of movement, when CD player has discs, sliding part moves forward, the roller height descends, thereby interior location-plate descends, make the spacing of limited post and movement greater than the normal Oscillation Amplitude of movement, described limited post is described position limiter of CD player.
2. according to the described position limiter of CD player of claim 1, when wherein this stop means shifted near movement, the spacing of the core of disembarking was less than 2mm.
3. according to the described position limiter of CD player of claim 1, wherein the below of this sliding part is provided with a spring, this sliding part is not when CD player has discs, hold the rear end that is fixed on CD player by spring, the tooth bar and the second gear drive portion on the sliding part are broken away from, and form a distance, this distance exceeds the spacing that stop means shifts near movement.
4. according to the described position limiter of CD player of claim 3, wherein this sliding part moves to the position of down-pressure roller when CD player has discs, drives location-plate and moves down, and makes the stop means on the location-plate break away from the movement moving range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710305422XA CN101471107B (en) | 2007-12-28 | 2007-12-28 | Position limiter of CD player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710305422XA CN101471107B (en) | 2007-12-28 | 2007-12-28 | Position limiter of CD player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101471107A CN101471107A (en) | 2009-07-01 |
| CN101471107B true CN101471107B (en) | 2010-11-17 |
Family
ID=40828502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710305422XA Expired - Fee Related CN101471107B (en) | 2007-12-28 | 2007-12-28 | Position limiter of CD player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101471107B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177184A (en) * | 1996-09-13 | 1998-03-25 | 三星电子株式会社 | Method and apparatus for chucking optical disk and driving tray in optical disk player |
| CN1805023A (en) * | 2005-01-11 | 2006-07-19 | 广明光电股份有限公司 | Structure for preventing gear slippage in optical disk drive |
| JP2007149244A (en) * | 2005-11-29 | 2007-06-14 | Funai Electric Co Ltd | Disk device |
-
2007
- 2007-12-28 CN CN200710305422XA patent/CN101471107B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177184A (en) * | 1996-09-13 | 1998-03-25 | 三星电子株式会社 | Method and apparatus for chucking optical disk and driving tray in optical disk player |
| CN1805023A (en) * | 2005-01-11 | 2006-07-19 | 广明光电股份有限公司 | Structure for preventing gear slippage in optical disk drive |
| JP2007149244A (en) * | 2005-11-29 | 2007-06-14 | Funai Electric Co Ltd | Disk device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101471107A (en) | 2009-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20131228 |