CN1448941A - Adjustable device of read-write head guide arm - Google Patents
Adjustable device of read-write head guide arm Download PDFInfo
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- CN1448941A CN1448941A CN 02108789 CN02108789A CN1448941A CN 1448941 A CN1448941 A CN 1448941A CN 02108789 CN02108789 CN 02108789 CN 02108789 A CN02108789 A CN 02108789A CN 1448941 A CN1448941 A CN 1448941A
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- board
- guide rod
- shell fragment
- adjusting gear
- pedestal
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Abstract
The guide bar regulator for read-write head is used for the vertical trimming of the guide bar. It includes one seat, one retaining wall, one elastic sheet and one regulating screw. The protrudent retaining wall is set on the seat, the regulating screw fixes the elastic sheet onto the seat, and one end of the elastic sheet hold down one end of the guide bar against the retaining wall with one lateral force. Via screwing down or screwing out to deform the elastic sheet, the regulator makes the guide bar shift along the retaining wall indirectly.
Description
Technical field
The present invention relates to a kind of adjusting gear of read/write head guide rod, particularly relate to a kind of can simple and easy adjustment CD-ROM drive in the guide rod adjusting gear of two guide rod relative heights.
Background technology
Generally speaking, when operational computations machine or AV device, CD-ROM drive often is used as auxiliary attached memory device.By CD-ROM drive, computing machine or AV device can read CD (compact disk, CD) or digital video disc (digital video disk, DVD) Nei data simultaneously also can write the data that other will be deposited.
Generally speaking, CD-ROM drive comprises a read/write head (pick up head), a main shaft guide rod, a countershaft guide rod and a guide rod regulating device.Read/write head is for the data that read or write in the discs.The method that reads is to utilize read/write head to send laser earlier, is sent to the lip-deep indenture of discs of storage data.Then, by the laser that reception reflects, identification is embedded in the data in the discs.When the read/write head reading of data, discs can high speed rotating, and that read/write head comes and goes on main shaft guide rod and the countershaft guide rod is mobile.Constantly move in radially (the radius direction) of discs by read/write head, read/write head can read the everywhere on the discs.
Generally speaking, when read/write head breaks away from the radial path at discs center or favours the plane of discs itself, will cause and read or write error in data.At this, read/write head has two kinds of possible errors.Come and go when mobile when read/write head can't remain on radially doing of discs, a lateral error may produce.When the running direction of read/write head can't remain parallel to the plane of discs itself, promptly the running direction of read/write head tilt and non-perpendicular to discs radially the time, a vertical error may take place.And because of on the main shaft guide rod and countershaft guide rod of read/write head in the CD-ROM drive.That is to say that two guide rod the relative position of each other are inaccurate, may cause read/write head to read error, make when record or copy data, can't read the data on the discs normally.Therefore, the quality of data that causes CD-ROM drive to be read on the discs is not good.Yet, though this possibility that makes the mistake, avoid by the precision that increases the assembling of part and product, but the ability that in fact reduces for mistake still has certain limit.
Therefore,, simultaneously, must there be a guide rod adjusting gear to adjust the relative height of two guide rods in the CD-ROM drive, reads error just can avoid read/write head to produce also in order to make the data that read or write in the discs correct for read/write head can be moved smoothly.
In the adjusting gear as No. 5768248 exposure of United States Patent (USP), CD-ROM drive 10 comprises a read/write head 101, a main shaft guide rod 103, a countershaft guide rod 105, several guide rod regulating devices 107 and a rotating-table apparatus 109.Shown in figure one, when a discs (not drawing) is positioned over when reading on the rotating-table apparatus 109, read/write head 101 must coming and going of level move between main shaft guide rod 103 and countershaft guide rod 105, could read the data of the interior everywhere of discs (not drawing) like clockwork.Therefore, in existing CD-ROM drive 10, utilize several guide rod regulating devices 107 to regulate the relative height of main shaft guide rod 103 and countershaft guide rod 105.But the complex structure of existing guide rod adjusting gear 107 makes that its volume is big, cost is high.
Summary of the invention
The object of the present invention is to provide a kind of simple, practical and adjusting gear cheaply, it carries out the fine setting of vertical direction to a guide rod, to adjust the relative height of two guide rods in the CD-ROM drive.
The object of the present invention is achieved like this, and a kind of adjusting gear promptly is provided, and for a guide rod (guide-bar) being carried out the vertical direction fine setting, this guide rod has an end, and this adjusting gear comprises: a pedestal (body); One barricade is arranged on this pedestal in outstanding mode; One shell fragment (spring), the end (end portion) of this guide rod of end pressure holding of this shell fragment, and a side force is provided, oppress this guide rod on (press against) this barricade; And one adjust screw, for this shell fragment is fixed on this pedestal; Wherein, make this shell fragment distortion, this guide rod is moved along this barricade by screwing or loosening this adjustment screw.
The present invention also provides a kind of adjusting gear, and for a guide rod being carried out the vertical direction fine setting, this guide rod has an end, and this adjusting gear comprises: a pedestal; One barricade is arranged on this pedestal in outstanding mode; One shell fragment, this shell fragment comprises: one first board, this first board have one first end and one second end, and this first end is provided with a bearing, this end of this this guide rod of bearing pressure holding, and a side force is provided, oppress this guide rod on this barricade; One second board, this second board has one first end; And a link rod part, one first end of this link rod part is connected in second end of this first board, and one second end of this link rod part is connected in first end of this second board; And one adjust screw, and for this shell fragment is fixed on this pedestal, wherein this adjustment screw is oppressed this first board, and this second board is connected on this pedestal, and by this link rod part, make when this adjustment screw means or when loosening, this first board and this second board be keeping parallelism basically; Wherein, make this shell fragment distortion, this guide rod is moved along this barricade by screwing or loosening this adjustment screw.
The present invention also provides a kind of CD-ROM drive, comprising: a spindle guide bar; And at least one adjusting gear, this adjusting gear is arranged at an end of this spindle guide bar, and for this spindle guide bar being carried out the vertical direction fine setting, wherein this adjusting gear comprises: a pedestal; One barricade is arranged on this pedestal in outstanding mode; One shell fragment, an end of an end pressure holding one guide rod of this shell fragment, and a side force is provided, oppress this guide rod on this barricade; And one adjust screw, for this shell fragment is fixed on this pedestal; Wherein, make this shell fragment distortion, this guide rod is moved along this barricade by screwing or loosening this adjustment screw.
Description of drawings
Fig. 1 is the top view of existing CD driver;
Fig. 2 is an embodiment of adjusting gear of the present invention;
Fig. 3 is a shell fragment example structure figure of adjusting gear of the present invention;
Fig. 4 is the side view of an embodiment of adjusting gear of the present invention;
Fig. 5 is applied to an embodiment of a CD-ROM drive for adjusting gear of the present invention.
Concrete implementation content
As shown in Figure 2, in this embodiment, adjusting gear of the present invention is for a guide rod 21 being carried out the vertical direction fine setting.This guide rod 21 has an end 211.Adjusting gear of the present invention comprises a pedestal 23, a barricade 25, a shell fragment 27 and an adjustment screw 29.
As shown in Figure 2, barricade 25 is arranged on the pedestal 23 in outstanding mode.The end 211 of one end pressure holding guide rod 21 of shell fragment 27 is to provide a side force, and the end 211 of compressing guide rod 21 is resisted against on the barricade 25.In addition, adjusting screw 29 is fixed in shell fragment 27 on the pedestal 23.And adjusting gear of the present invention makes shell fragment 27 distortion by screwing or loosening adjustment screw 29, allows guide rod 21 move along barricade 25 indirectly, reaches the purpose of the vertical direction height of fine setting guide rod 21.
As shown in Figure 3, shell fragment 27 of the present invention comprises one first board 271, a link rod part 273 and one second board 275.First board 271 has one first end 2711 and one second end 2713.One bearing 277 is arranged in first end 2711, and forms by 2711 bendings of first end.Second board 275 has one first end 2751.One first end 2731 of link rod part 273 is connected in second end 2713 of first board 271.And one second end 2733 of link rod part 273 is connected in first end 2751 of second board 275.At this, shell fragment 27 central authorities have a screw 279, pass through for adjusting screw (not drawing).In addition, the shape that connected and composed of first board 271 in the shell fragment 27, link rod part 273 and second board 275 roughly is the Z font.Though in this embodiment, the structure of shell fragment 27 roughly is the Z font, yet shell fragment 27 also can be transformed to other enforcement state easily except that the enforcement state that uses said structure, do not give unnecessary details at this.
As shown in Figure 4, adjustment screw 29 passes the screw (not drawing) in the shell fragment 27, and oppresses first board 271.Simultaneously, the end 211 of first end, the 2711 pressure holding guide rods 21 of first board 271 is to provide a side force, and the end 211 of compressing guide rod 21 is resisted against on the barricade 25.Second board 275 is connected on the pedestal 23.By the effect of link rod part 273, when adjustment screw 29 screws or loosens, cause shell fragment 27 extrusion distortion, and make guide rod 21 move indirectly along barricade 25 toward vertical direction.And this moment, first board 271 and second board 275 be keeping parallelism basically.
Therefore, adjusting gear of the present invention only utilizes a shell fragment 27, a barricade 25 and to adjust screw 29, can reach the purpose of adjusting guide rod 21 vertical heights.Big and the complex structure with existing adjusting gear 107 volumes, the purpose that adjusting gear of the present invention can reach simplified design really, reduce cost.
As shown in Figure 5, in this embodiment, three adjusting gears 1,3,5 of the present invention are set in the CD-ROM drive 20.CD-ROM drive 20 has a main shaft guide rod 22 and a countershaft guide rod 24.Adjusting gear 1 is arranged at an end of main shaft guide rod 22.Adjusting gear 3,5 is arranged at the forward and backward two ends of countershaft guide rod 24 respectively. Shell fragment 13,33,53 in the adjusting gear 1,3,5 is connected to respectively on the pedestal 26 of CD-ROM drive 20. Adjustment screw 11,31,51 in the adjusting gear 1,3,5 is oppressed shell fragment 13,33,53 respectively.And adjust screw 11,31,51 by screwing or loosening, make the degree of shell fragment 27 extrusion distortion change shell fragment 13,33,53 distortion.At this moment, by shell fragment 13,33,53 distortion, main shaft guide rod 22 and countershaft guide rod 24 are moved respectively along barricade 28 toward vertical direction.Therefore, utilize adjusting gear 1,3,5 of the present invention, the main shaft guide rod 22 in the CD-ROM drive 20 and countershaft guide rod 24 can be adjusted relative vertical height each other arbitrarily.
In the aforementioned specification, the present invention is that reference is described with the specific embodiment, yet obviously various corrections and change do not break away from the spirit and the scope of broadness of the present invention.And should the really good explanation of correspondence be to be used for being illustrated and unrestricted category of the present invention with icon.Therefore, expression the present invention should be contained all and appears at correction and the variation that additional application claim of the present invention equates with it.
Claims (9)
1. an adjusting gear is finely tuned for a guide rod (guide-bar) being carried out vertical direction, and this guide rod has an end, and this adjusting gear comprises:
One pedestal (body);
One grade of wall is arranged on this pedestal in outstanding mode;
One shell fragment (spring), the end (end portion) of this guide rod of end pressure holding of this shell fragment, and a side force is provided, oppress this guide rod on (press against) this barricade; And
One adjusts screw, for this shell fragment is fixed on this pedestal; Wherein, make this shell fragment distortion, this guide rod is moved along this barricade by screwing or loosening this adjustment screw.
2. adjusting gear as claimed in claim 1, wherein this shell fragment comprises:
One first board, this first board have one first end and one second end, and wherein this first end is provided with a bearing;
One second board, this second board has one first end; And
One link rod part, one first end of this link rod part is connected in second end of this first board, and one second end of this link rod part is connected in first end of this second board;
Wherein this adjustment screw is oppressed this first board, and this second board is connected on this pedestal, and by this link rod part, makes when adjusting screw means or loosening, and this first board and this second board be keeping parallelism basically.
3. adjusting gear as claimed in claim 2, wherein the shape that connected and composed of this first board, this second board and this link rod part roughly is the Z font.
4. adjusting gear as claimed in claim 2, wherein this bearing forms by first end bending of this shell fragment.
5. adjusting gear as claimed in claim 1, wherein these shell fragment central authorities have a screw, pass through for this adjustment screw.
6. adjusting gear as claimed in claim 1, wherein this adjusting gear is applied to a CD-ROM drive.
7. adjusting gear as claimed in claim 6, wherein this CD-ROM drive has a main shaft guide rod and a countershaft guide rod, and this adjusting gear is arranged at an end of this main shaft guide rod and the forward and backward both ends of this countershaft guide rod, for adjusting the relative height of two guide rods.
8. an adjusting gear is finely tuned for a guide rod being carried out vertical direction, and this guide rod has an end, and this adjusting gear comprises:
One pedestal;
One barricade is arranged on this pedestal in outstanding mode;
One shell fragment, this shell fragment comprises:
One first board, this first board have one first end and one second end, and this first end is provided with a bearing, this end of this this guide rod of bearing pressure holding, and a side force is provided, oppress this guide rod on this barricade;
One second board, this second board has one first end; And
One link rod part, one first end of this link rod part is connected in second end of this first board, and one second end of this link rod part is connected in first end of this second board; And
One adjusts screw, and for this shell fragment is fixed on this pedestal, wherein this adjustment screw is oppressed this first board, and this second board is connected on this pedestal, and by this link rod part, make when this adjustment screw means or when loosening, this first board and this second board be keeping parallelism basically;
Wherein, make this shell fragment distortion, this guide rod is moved along this barricade by screwing or loosening this adjustment screw.
9. CD-ROM drive comprises:
One spindle guide bar; And
At least one adjusting gear, this adjusting gear are arranged at an end of this spindle guide bar, and for this spindle guide bar being carried out the vertical direction fine setting, wherein this adjusting gear comprises:
One pedestal;
One barricade is arranged on this pedestal in outstanding mode;
One shell fragment, an end of an end pressure holding one guide rod of this shell fragment, and a side force is provided, oppress this guide rod on this barricade; And
One adjusts screw, for this shell fragment is fixed on this pedestal;
Wherein, make this shell fragment distortion, this guide rod is moved along this barricade by screwing or loosening this adjustment screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02108789 CN1211800C (en) | 2002-04-02 | 2002-04-02 | Adjustable device of read-write head guide arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02108789 CN1211800C (en) | 2002-04-02 | 2002-04-02 | Adjustable device of read-write head guide arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1448941A true CN1448941A (en) | 2003-10-15 |
| CN1211800C CN1211800C (en) | 2005-07-20 |
Family
ID=28680344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02108789 Expired - Fee Related CN1211800C (en) | 2002-04-02 | 2002-04-02 | Adjustable device of read-write head guide arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1211800C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333396C (en) * | 2004-06-07 | 2007-08-22 | 建兴电子科技股份有限公司 | Regulator for adjusting optical reading/writing head position |
| CN102903373A (en) * | 2011-07-26 | 2013-01-30 | 飞利浦建兴数位科技股份有限公司 | Tilt adjustment device of optical read-write head |
-
2002
- 2002-04-02 CN CN 02108789 patent/CN1211800C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333396C (en) * | 2004-06-07 | 2007-08-22 | 建兴电子科技股份有限公司 | Regulator for adjusting optical reading/writing head position |
| CN102903373A (en) * | 2011-07-26 | 2013-01-30 | 飞利浦建兴数位科技股份有限公司 | Tilt adjustment device of optical read-write head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1211800C (en) | 2005-07-20 |
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