CN100403430C - Gear driving system for optic disc reading and writing device - Google Patents
Gear driving system for optic disc reading and writing device Download PDFInfo
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- CN100403430C CN100403430C CNB2004100029078A CN200410002907A CN100403430C CN 100403430 C CN100403430 C CN 100403430C CN B2004100029078 A CNB2004100029078 A CN B2004100029078A CN 200410002907 A CN200410002907 A CN 200410002907A CN 100403430 C CN100403430 C CN 100403430C
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Abstract
The present invention relates to a gear driving system for an optic disc reading and writing device, which comprises a first gear, a gear transmitting set, a transmitting plate and a base plate frame, wherein the gear transmitting set has a second gear and a third gear; the transmitting plate has a first gear rack, a second gear rack, a first guide rail and a second guide rail; the first gear rack and the second gear rack are separately positioned on both ends of the transmitting plate; the first gear rack faces to the first gear; the second gear rack faces to the third gear; the base plate frame has a first guide pillar, a second guide pillar and a cantilever part; the first guide pillar and the second guide pillar can respectively and freely slide in the first guide rail and the second guide rail; the cantilever part faces to the third gear.
Description
Technical field
The present invention relates to a kind of gear train assembly, particularly relate to a kind of gear train assembly that is used for CD-ROM drive.
Background technology
Recently, because computer peripheral equipment is constantly progressive, and its price also keeps falling, and CD-ROM drive has become the essential electronic product of common people.As shown in Figure 1, for having the schematic appearance of CD read and write-in apparatus (being called for short CD-ROM drive 1 later on) now.Its structure has CD-ROM drive 1 now and can further be divided into a bottom 2, a protecgulum 3, a substrate 4, a pallet 5 and a loam cake 6 as shown in Figure 2.
Figure 3 shows that the enlarged diagram of this bottom 2, this bottom 2 has a gear train assembly 10.This gear train assembly 10 comprises a gear drive group 101, a holding tray motor 11, one first gear 12, a driver plate 13 and a frame substrate 7.This gear drive group 101 has one second gear 14 and one the 3rd gear 15, and this second gear 14 is sheathed on the transmission shaft of this holding tray motor 11.As shown in Figure 4, driver plate 13 has one first tooth bar 131, one second tooth bar 132, one first guide rail 133 and one second guide rail 134, first tooth bar 131 has first end 131a of first tooth bar and the second end 131b of first tooth bar, and second tooth bar 132 has first end 132a of second tooth bar and the second end 132b of second tooth bar.
Consult Fig. 3,12 contacts of first gear are positioned at first tooth bar 131 of driver plate 13 1 ends, with so that microscler driver plate 13, stably the long axis direction along driver plate 13 moves back and forth, and first gear 12 also has the primary importance 121 of first gear and the second place 122 of first gear.As shown in Figure 5, be the stereographic map of the frame substrate 7 of existing CD-ROM drive 1, frame substrate 7 has one first guide pillar 71, one second guide pillar 72 and a protuberance 73, the first guide pillars 71 and second guide pillar 72 can be respectively at being free to slide in this first guide rail 133 and second guide rail 134.
Consult Fig. 3, should be in the sheet state that moves back by existing CD-ROM drive 1 this moment, this pallet 5 stretches out this existing CD-ROM drive 1 (not showing at this), first end 131a of first tooth bar 131 of driver plate 13 and 121 engagements of the primary importance of this first gear 12, second tooth bar 132 of driver plate 13 separates with the 3rd gear 15, and the protuberance 73 of frame substrate 7 separates with driver plate 13.As Fig. 6, further illustrate that with vertical view Fig. 3 is in the gear train assembly 10 when moving back the sheet state, wherein the protuberance 73 of frame substrate 7 separates with driver plate 13.
Consult Fig. 3, when this pallet 5 being inserted this existing CD-ROM drive 1 (not showing) at this, this moment, the propulsion system as holding tray motor 11 can drive this second gear 14 toward the rotation of A direction, drove the 3rd gear 15 toward the rotation of B direction via a plurality of gear drive groups that gear constituted that are engaged with each other 101.When this pallet 5 enters this existing CD-ROM drive 1 soon fully by the time, propulsion system can drive this driver plate 13 and advance toward the C direction, see also Fig. 7, make the first end 132a and 15 engagements of the 3rd gear of this second tooth bar 132, till the second end 132b and 15 engagements of the 3rd gear of this second tooth bar 132.The second place 122 engagements of the second end 131b of first tooth bar 131 of this driver plate 13 and this first gear 12 at this moment, and should finish the action of advancing sheet by existing CD-ROM drive 1, the protuberance 73 of frame substrate 7 can withstand driver plate 13, so that second tooth bar 132 remains on correct position.The vertical view of this gear train assembly 10 when finishing sheet into about Fig. 7 can be further with reference to figure 8, and wherein the protuberance 73 of frame substrate 7 withstands driver plate 13.
Finish the action of sheet into when existing CD-ROM drive 1 after, second end 132b of second tooth bar 132 and 15 engagements of the 3rd gear, at this moment, the second end 132b of second tooth bar 132 is easy to rupture easily or causes mechanism blockage because of the application of force of bearing the 3rd gear 15.
Solve the problem that the said mechanism system is stuck and rupture so be badly in need of a kind of new design.
Summary of the invention
The objective of the invention is to utilize a gear train assembly, can avoid CD-ROM drive advancing under the duty that sheet moves back sheet, mechanism blockage or fracture cause operation failure.
The object of the present invention is achieved like this, and a kind of gear train assembly that is used for the CD read and write-in apparatus promptly is provided, and this CD read and write-in apparatus comprises a pallet and a frame substrate, and this gear train assembly comprises:
One first gear;
One gear drive group has one second gear and one the 3rd gear, and when this CD read and write-in apparatus is inserted and withdrawed to this pallet, this second gear and the 3rd gear rotated; And
One driver plate has one first tooth bar, one second tooth bar, one first guide rail and one second guide rail, and this first tooth bar meshes this first gear, and this second tooth bar is arranged at the strip member surface near the 3rd gear, and towards the 3rd gear;
Wherein, this frame substrate has one first guide pillar, one second guide pillar and a cantilever portion, and this first guide pillar and second guide pillar can be free to slide in this first guide rail and second guide rail respectively, and this cantilever portion is towards the 3rd gear;
Wherein, insert this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar and the 3rd gear become the state of engagement by the state that separates, and this driver plate can be touched and withstand to this cantilever portion, withdraw from this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar become the state that separates by the state that meshes, and this cantilever portion is separated with this driver plate with the 3rd gear.
The present invention also provides a kind of CD read and write-in apparatus, comprising:
One bottom;
One pallet is installed on this bottom inside, is subjected to drive to make this pallet load and withdraw from this CD read and write-in apparatus; And
One gear train assembly, be installed on this bottom, comprise a driver plate, one gear drive group and one first gear, this gear drive group comprises one second gear and one the 3rd gear, the rotation of this second gear of the 3rd gear matched and rotating, when this CD read and write-in apparatus is inserted and withdrawed to this pallet, this second gear is driven and is rotated, this driver plate has one first tooth bar, one second tooth bar, one first guide rail and one second guide rail, this first tooth bar meshes this first gear, this second tooth bar is arranged at the surface near the 3rd gear, and towards the 3rd gear; And
One frame substrate has one first guide pillar, one second guide pillar and a cantilever portion, and this first guide pillar and this second guide pillar can be respectively at being free to slide in this first guide rail and this second guide rail, and this cantilever portion is towards the 3rd gear;
Wherein, insert this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar and the 3rd gear become the state of engagement by the state that separates, and this driver plate can be touched and withstand to this cantilever portion, withdraw from this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar become the state that separates by the state that meshes, and this cantilever portion is separated with this driver plate with the 3rd gear.
The present invention also provides a kind of CD read and write-in apparatus, comprising:
One bottom;
One pallet is installed on this bottom inside, is subjected to drive to make this pallet load and withdraw from this CD read and write-in apparatus;
One gear train assembly is installed on this bottom, comprises a driver plate and one the 3rd gear, and this driver plate has one second tooth bar, and this second tooth bar is arranged at the surface near the 3rd gear, and selectively with the 3rd gearing mesh; And
One frame substrate has a cantilever portion, and this cantilever portion is towards the 3rd gear, and selectively contacts and withstand this driver plate;
Wherein, after this pallet is inserted this CD read and write-in apparatus, this second tooth bar and the 3rd gear are the state of engagement, and this driver plate can be touched and withstand to this cantilever portion, after this pallet withdraws from this CD read and write-in apparatus, this second tooth bar is the state that separates with the 3rd gear, and this cantilever portion is separated with this driver plate.
Synthetically say, the present invention relates to a kind of gear train assembly that is used for the CD read and write-in apparatus, after a pallet was inserted this CD read and write-in apparatus, this CD read and write-in apparatus was in order to read and write the optical disc data on the described pallet.This gear train assembly comprises one first gear, a gear drive group, a driver plate and a frame substrate.
This driver plate has one first tooth bar, one second tooth bar, one first guide rail and one second guide rail.This first gear contacts first tooth bar on this driver plate one end, and with so that microscler driver plate, the stable long axis direction along this driver plate moves back and forth.This gear drive group has one second gear and one the 3rd gear.The rotation of this second gear of the 3rd gear matched and rotating, when wherein this CD read and write-in apparatus is inserted and withdrawed to this CD, this second gear was driven by propulsion system and rotates.This first tooth bar meshes this first gear, and this second tooth bar is arranged at the strip member surface near the 3rd gear, and towards the 3rd gear.This frame substrate has one first guide pillar, one second guide pillar and a cantilever portion, and this first guide pillar and second guide pillar can be respectively at being free to slide in this first guide rail and second guide rail, and this cantilever portion is towards the 3rd gear.
Wherein, insert this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven by these propulsion system and moves, make this second tooth bar and the 3rd gear become the state of engagement, withdraw from this CD read and write-in apparatus at this pallet by the state that separates, and after this second gear rotates, this driver plate is driven by these propulsion system and moves, and makes this second tooth bar become the state that separates with the 3rd gear by the state that meshes.
Gear train assembly as above-mentioned further specifies, and first gear comprises the primary importance of this first gear and the second place of this first gear, and this first tooth bar further comprises first end of this first tooth bar and second end of this first tooth bar.Wherein after this pallet withdraws from this CD read and write-in apparatus, first end engagement of the primary importance of this first gear and this first tooth bar, after this pallet is inserted this CD read and write-in apparatus, the engagement of second end of the second place of this first gear and this first tooth bar.
As above-mentioned gear train assembly, in addition, this second tooth bar further comprises first end of this second tooth bar and second end of this second tooth bar.Wherein when this pallet is inserted this CD read and write-in apparatus, first end of this second tooth bar is engagement the 3rd gear earlier, second termination of this second tooth bar engagement the 3rd gear, when this pallet withdraws from this CD read and write-in apparatus, second end of this second tooth bar leaves the 3rd gear earlier, and first termination of this second tooth bar and left the 3rd gear.
Further, when this pallet is inserted this CD read and write-in apparatus, this first guide pillar and second guide pillar can arrive a second place by the primary importance in this first guide rail and second guide rail respectively, at this moment, this cantilever portion can be touched this driver plate, when this pallet withdrawed from this CD read and write-in apparatus, this first guide pillar and second guide pillar can be got back to primary importance by the second place in this first guide rail and second guide rail respectively, and this cantilever portion can be separated with this driver plate.
Therefore, cantilever portion by gear train assembly of the present invention, when second tooth bar of the 3rd gear and this driver plate meshes, there are enough rich spaces to allow this driver plate distortion, can avoid pallet operating sheet or moving back under the duty of sheet, second tooth bar fracture of mechanism blockage or this driver plate causes operation failure.
Description of drawings
Fig. 1 is the schematic appearance of existing CD-ROM drive;
Fig. 2 is the decomposing schematic representation of existing CD-ROM drive;
Fig. 3 is the bottom enlarged diagram of existing CD-ROM drive;
Fig. 4 is the schematic appearance of driver plate;
Fig. 5 is the frame substrate synoptic diagram of existing CD-ROM drive;
Fig. 6 is the vertical view of existing CD-ROM drive gear train assembly when moving back the sheet state;
The synoptic diagram of gear train assembly when Fig. 7 finishes sheet into for existing CD-ROM drive;
The vertical view of gear train assembly when Fig. 8 finishes sheet into for existing CD-ROM drive;
Fig. 9 is for using the CD-ROM drive decomposing schematic representation of gear train assembly of the present invention;
CD-ROM drive when the moving back sheet state bottom enlarged diagram of Figure 10 for using gear train assembly of the present invention;
Figure 11 is the schematic appearance of driver plate;
Figure 12 is the frame substrate synoptic diagram of gear train assembly of the present invention;
Figure 13 is for using the vertical view of CD-ROM drive when moving back the sheet state of gear train assembly of the present invention;
The synoptic diagram of gear train assembly when Figure 14 finishes sheet into for the CD-ROM drive that uses gear train assembly of the present invention; And
The vertical view of gear train assembly when Figure 15 finishes sheet into for the CD-ROM drive that uses gear train assembly of the present invention.
Embodiment
See also and followingly describe in detail really and accompanying drawing about the present invention, however appended graphic only provide with reference to and explanation usefulness, be not to be used for the present invention is limited.
The embodiment of the following description of the present invention is relevant with half-height type CD-ROM drive (HalfHeight).Yet the present invention comprises read-only CD-ROM drive (CD-ROM), recordable CD ROM (CD-RW), absorbing optical drive, COMBO CD-ROM drive, DVD-R/RW CD-ROM drive, externally-connected optical drive, all optical media logging machines and player etc. applicable to all CD-ROM drive products.
As shown in Figure 9, CD read and write-in apparatus (hereinafter to be referred as CD-ROM drive 1A) can further be divided into a bottom 2A, a protecgulum 3A, a substrate 4A, a pallet 5A and a loam cake 6A, pallet 5A goes up in order to place a CD (not shown), driven by propulsion system as holding tray motor, can insert or withdraw from CD-ROM drive 1A, CD-ROM drive 1A is read and write data on this CD.
Figure 10 shows that the enlarged diagram of this bottom 2A, this bottom 2A has a gear train assembly 10A and a frame substrate 7A, and this gear train assembly 10A comprises a gear drive group 101A, a holding tray motor 11A, one first gear 12A and a driver plate 13A.Gear drive group 101A has one second gear 14A and one the 3rd gear 15A, this second gear 14A is sheathed on the transmission shaft of this holding tray motor 11A, and gear drive group 101A is engaged with each other by a plurality of gears, makes the second gear 14A and the 3rd gear 15A interlock mutually.When pallet 5A inserted or withdraw from CD-ROM drive 1A, holding tray motor 11A can rotate, and as propulsion system the second gear 14A was rotated by holding tray motor 11A, can make the 3rd gear 15A cooperate the rotation of the second gear 14A and rotated.
As shown in figure 11, this driver plate 13A has one first tooth bar 13A1, one second tooth bar 13A2, one first guide rail 13A3 and one second guide rail 13A4, and when pallet 5A inserted or withdraw from CD-ROM drive 1A, driver plate 13A can be driven by propulsion system and move back and forth.The first tooth bar 13A1 on the first gear 12A Contact Transmission plate 13A, one end, with so that microscler driver plate 13A, the stable long axis direction along driver plate 13A moves back and forth, and the first gear 12A has more the primary importance 12A1 of first gear and the second place 12A2 of first gear.This first tooth bar 13A1 has first end 13A1a of first tooth bar and the second end 13A1b of first tooth bar; This second tooth bar 13A2 has first end 13A2a of second tooth bar and the second end 13A2b of second tooth bar; This first guide rail 13A3 is a zigzag, and has first anchor point 13A3a of first guide rail and the second anchor point 13A3b of first guide rail; This second guide rail 13A4 is a zigzag, and has first anchor point 13A4a of first guide rail and the second anchor point 13A4b of first guide rail.The second tooth bar 13A2 is arranged at the strip member surface near the 3rd gear 15A, and the second tooth bar 13A2 is towards the 3rd gear 15A.
As shown in figure 12, this frame substrate 7A has one first guide pillar 7A1, one second guide pillar 7A2 and a cantilever portion 7A3, this the first guide pillar 7A1 and the second guide pillar 7A2 can be respectively at being free to slide in this first guide rail 13A3 and the second guide rail 13A4, and this cantilever portion 7A3 is then towards the 3rd gear 5A.As shown in figure 10, this moment, this CD-ROM drive 1A was in the sheet state that moves back, this pallet 5A stretches out this CD-ROM drive 1A (not showing at this), the primary importance 12A1 engagement of the first end 13A 1a of the first tooth bar 13A1 of this driver plate 13A and this first gear 12A, the second tooth bar 13A2 of this driver plate 13A separates with the 3rd gear 15A.The guide pillar 7A1 of this frame substrate 7A is positioned at the first anchor point 13A3a of this first guide rail 13A3, and the guide pillar 7A2 of this frame substrate 7A is positioned at the first anchor point 13A4a of this first guide rail 13A4, and this cantilever portion 7A3 separates with this driver plate 13A.As Figure 13, further illustrate that with vertical view Figure 10 is in the gear train assembly 10A when moving back the sheet state, wherein the cantilever portion 7A3 of frame substrate 7A separates with driver plate 13A.
Consult Figure 12, when this pallet 5A being inserted CD-ROM drive 1A of the present invention (not showing) at this, this moment, this holding tray motor 11A can drive this second gear 14A toward the rotation of A direction, drive the 3rd gear 15A toward the rotation of B direction via this gear drive group 101A, when this pallet 5A enters CD-ROM drive 1A of the present invention soon fully by the time, can drive this driver plate 13A advances toward the C direction, make the first end 13A2a and the 3rd gear 15A engagement of this second tooth bar 13A2, till the second end 13A2b and the 3rd gear 15A engagement of this second tooth bar 13A2, the second place 12A2 of the second end 13A1b of the first tooth bar 13A1 of this driver plate 13A and this first gear 12A engagement at this moment, the guide pillar 7A1 of this frame substrate 7A is positioned at the second anchor point 13A3b of this first guide rail 13A3, the guide pillar 7A2 of this frame substrate 7A is positioned at the second anchor point 13A4b of this second guide rail 13A4, the optical read/write head (not shown) that is connected frame substrate 7A is risen, place CD (not shown) on the pallet 5A with read-write, make CD-ROM drive 1A of the present invention finish the into action of sheet, at this moment, this cantilever portion 7A3 can touch and withstand this driver plate 13A, so that the second tooth bar 13A2 remains on correct position, as shown in figure 14.As Figure 15, the gear train assembly 10A when further illustrating that with vertical view Figure 14 finishes sheet state into, wherein the cantilever portion 7A3 of frame substrate 7A can touch and withstand this driver plate 13A.
Further specify, the present invention is in the set cantilever portion 7A3 of this frame substrate 7A, its effect is: finish the action of sheet into as CD-ROM drive 1A after, the second end 13A2b of the second tooth bar 13A2 and the 3rd gear 15A engagement, when this cantilever portion 7A3 touches and withstands this driver plate 13A, allow that this driver plate 13A has enough nargin geometric distortions, can avoid pallet 5A operating sheet or moving back under the duty of sheet, the second end 13A2b of the second tooth bar 13A2 of mechanism blockage or this driver plate 13A causes operation failure because of the application of force fracture of bearing the 3rd gear 15.
In sum; though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (8)
1. gear train assembly that is used for the CD read and write-in apparatus, this CD read and write-in apparatus comprises a pallet and a frame substrate, this gear train assembly comprises:
One first gear;
One gear drive group has one second gear and one the 3rd gear, and when this CD read and write-in apparatus is inserted and withdrawed to this pallet, this second gear and the 3rd gear rotated; And
One driver plate has one first tooth bar, one second tooth bar, one first guide rail and one second guide rail, and this first tooth bar meshes this first gear, and this second tooth bar is arranged at the strip member surface near the 3rd gear, and towards the 3rd gear;
Wherein, this frame substrate has one first guide pillar, one second guide pillar and a cantilever portion, and this first guide pillar and second guide pillar can be free to slide in this first guide rail and second guide rail respectively, and this cantilever portion is towards the 3rd gear;
Wherein, insert this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar and the 3rd gear become the state of engagement by the state that separates, and this driver plate can be touched and withstand to this cantilever portion, withdraw from this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar become the state that separates by the state that meshes, and this cantilever portion is separated with this driver plate with the 3rd gear.
2. gear train assembly as claimed in claim 1, wherein first gear further comprises the primary importance of this first gear and the second place of this first gear, this first tooth bar further comprises first end of this first tooth bar and second end of this first tooth bar, after wherein this pallet withdraws from this CD read and write-in apparatus, first end engagement of the primary importance of this first gear and this first tooth bar, after this pallet is inserted this CD read and write-in apparatus, the engagement of second end of the second place of this first gear and this first tooth bar.
3. gear train assembly as claimed in claim 1, wherein this second tooth bar further comprises first end of this second tooth bar and second end of this second tooth bar, wherein when this pallet is inserted this CD read and write-in apparatus, first end of this second tooth bar is engagement the 3rd gear earlier, second termination of this second tooth bar engagement the 3rd gear, when this pallet withdraws from this CD read and write-in apparatus, second end of this second tooth bar leaves the 3rd gear earlier, and first termination of this second tooth bar and left the 3rd gear.
4. gear train assembly as claimed in claim 1, wherein when this pallet is inserted this CD read and write-in apparatus, this first guide pillar and second guide pillar can arrive a second place by the primary importance in this first guide rail and second guide rail respectively, at this moment, this driver plate can be touched and withstand to this cantilever portion, when this pallet withdraws from this CD read and write-in apparatus, this first guide pillar and second guide pillar can be got back to primary importance by the second place in this first guide rail and second guide rail respectively, and this cantilever portion is separated with this driver plate.
5. CD read and write-in apparatus comprises:
One bottom;
One pallet is installed on this bottom inside, is subjected to drive to make this pallet load and withdraw from this CD read and write-in apparatus; And
One gear train assembly, be installed on this bottom, comprise a driver plate, one gear drive group and one first gear, this gear drive group comprises one second gear and one the 3rd gear, the rotation of this second gear of the 3rd gear matched and rotating, when this CD read and write-in apparatus is inserted and withdrawed to this pallet, this second gear is driven and is rotated, this driver plate has one first tooth bar, one second tooth bar, one first guide rail and one second guide rail, this first tooth bar meshes this first gear, this second tooth bar is arranged at the surface near the 3rd gear, and towards the 3rd gear; And
One frame substrate has one first guide pillar, one second guide pillar and a cantilever portion, and this first guide pillar and this second guide pillar can be respectively at being free to slide in this first guide rail and this second guide rail, and this cantilever portion is towards the 3rd gear;
Wherein, insert this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar and the 3rd gear become the state of engagement by the state that separates, and this driver plate can be touched and withstand to this cantilever portion, withdraw from this CD read and write-in apparatus at this pallet, and after this second gear rotates, this driver plate is driven and is moved, make this second tooth bar become the state that separates by the state that meshes, and this cantilever portion is separated with this driver plate with the 3rd gear.
6. CD read and write-in apparatus as claimed in claim 5, wherein first gear further comprises the primary importance of this first gear and the second place of this first gear, this first tooth bar also comprises first end of this first tooth bar and second end of this first tooth bar, wherein after this pallet withdraws from this CD read and write-in apparatus, first end engagement of the primary importance of this first gear and this first tooth bar, after this pallet is inserted this CD read and write-in apparatus, the engagement of second end of the second place of this first gear and this first tooth bar.
7. CD read and write-in apparatus as claimed in claim 5, wherein this second tooth bar further comprises first end of this second tooth bar and second end of this second tooth bar, wherein when this pallet is inserted this CD read and write-in apparatus, first end of this second tooth bar is engagement the 3rd gear earlier, second termination of this second tooth bar engagement the 3rd gear, when this pallet withdraws from this CD read and write-in apparatus, second end of this second tooth bar leaves the 3rd gear earlier, and first termination of this second tooth bar and left the 3rd gear.
8. gear train assembly as claimed in claim 5, wherein when this pallet is inserted this CD read and write-in apparatus, this first guide pillar and second guide pillar can arrive a second place by the primary importance in this first guide rail and second guide rail respectively, at this moment, this driver plate can be touched and withstand to this cantilever portion, when this pallet withdraws from this CD read and write-in apparatus, this first guide pillar and second guide pillar can be got back to primary importance by the second place in this first guide rail and second guide rail respectively, and this cantilever portion is separated with this driver plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100029078A CN100403430C (en) | 2004-01-20 | 2004-01-20 | Gear driving system for optic disc reading and writing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100029078A CN100403430C (en) | 2004-01-20 | 2004-01-20 | Gear driving system for optic disc reading and writing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1649011A CN1649011A (en) | 2005-08-03 |
| CN100403430C true CN100403430C (en) | 2008-07-16 |
Family
ID=34867489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100029078A Expired - Fee Related CN100403430C (en) | 2004-01-20 | 2004-01-20 | Gear driving system for optic disc reading and writing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100403430C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10199206A (en) * | 1997-01-10 | 1998-07-31 | Akai Electric Co Ltd | Loading mechanism for disk-shaped recording medium |
| CN1218955A (en) * | 1997-12-05 | 1999-06-09 | 德国汤姆逊-布朗特公司 | Power conveying system with gears and rack |
| CN2522978Y (en) * | 2001-12-30 | 2002-11-27 | 方维行 | CD playing device |
-
2004
- 2004-01-20 CN CNB2004100029078A patent/CN100403430C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10199206A (en) * | 1997-01-10 | 1998-07-31 | Akai Electric Co Ltd | Loading mechanism for disk-shaped recording medium |
| CN1218955A (en) * | 1997-12-05 | 1999-06-09 | 德国汤姆逊-布朗特公司 | Power conveying system with gears and rack |
| CN2522978Y (en) * | 2001-12-30 | 2002-11-27 | 方维行 | CD playing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1649011A (en) | 2005-08-03 |
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