CN1674122A - CD driving device set with pick up device protection part - Google Patents
CD driving device set with pick up device protection part Download PDFInfo
- Publication number
- CN1674122A CN1674122A CN 200410017122 CN200410017122A CN1674122A CN 1674122 A CN1674122 A CN 1674122A CN 200410017122 CN200410017122 CN 200410017122 CN 200410017122 A CN200410017122 A CN 200410017122A CN 1674122 A CN1674122 A CN 1674122A
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- CN
- China
- Prior art keywords
- light picker
- detent
- optical disc
- guide rod
- disc apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A light pickup protective unit set on optical disc driving device consists of the first braking system and the second braking system along driving direction of light pickup. The unit is featured as fetching optical disc data by light pickup being able to carry out linear reciprocating drive along radius direction of optical disc, and decentralizing impact force charged on light pickup to protect the light pickup when impact force is generated at driving direction of the light pickup.
Description
(1) technical field
The invention relates to the optical disc apparatus that is provided with light picker protection portion; especially give the added impulsive force of light picker on the light picker driving direction about being provided with to cushion; this impulsive force is disperseed, thereby can effectively protect a kind of optical disc apparatus that is provided with light picker protection portion of light picker.
(2) background technology
Fig. 1 is the planimetric map of existing optical disc apparatus.Fig. 2 is the constitutional diagram that the light picker of Fig. 1 obtains impacting.As depicted in figs. 1 and 2, optical disc apparatus comprises: the shell (not shown) that forms the barrel-shaped shape of inner space; Be arranged on the supporting frame 11 of enclosure; Be arranged on enclosure one side, rotation drives the rotating shaft 13 of CD; Radial direction along CD can carry out the round driving of linearity, reads the light picker 15 of optical disc information.
Light picker 15 comprises supports lens 24 to wait each component parts to come and go the chassis 16 that drives, and both lateral sides is respectively arranged with guide rod 17 and guide portion 19 on the moving direction on chassis 16, is used for guiding chassis 16.One side of guide rod 17 is provided with drive division 21, can come and go driving chassis 16 along guide rod 17 and guide portion 19.Drive division 21 comprises leadscrew 22 that is set up in parallel with guide rod 17 and the CD-ROM drive motor 23 that drives leadscrew 22.
In addition, this optical disc apparatus generally is paired packing or according to certain unit, such as 10 unit packagings transport to packing case.In transit, if packing case lands or and other objects collide, light picker 15 will be subjected to impulsive force, at this moment, if light picker 15 is subjected to very macrolesion, external impact force will be along the driving direction application of force of guide rod 17 and guide portion 19.
As mentioned above, when impulsive force was driving direction along light picker 15, light picker 15 will be under the effect of impulsive force, along guide rod 17 and guide portion 19 fast moving, as shown in Figure 2, until what touch guide rod 17 and guide portion 19 simultaneously end 18,20 is set respectively.
But; for this existing optical disc apparatus; light picker 15 can be along with the difference of component parts setting; produce the deviation of weight center and quality; therefore; it is poor not only can to produce impulsive force; and can be according to the characteristic of component parts and bonding state different; can there be the fragile relatively zone of opposing impulsive force; but do not consider this problem points, just at guide rod 17 and guide portion 19 end 18 is set respectively; 20, when 15 generation impacts contact with light picker; be moving of simple reduction light picker 15, therefore can not effectively protect the fragile part of CD 15.
(3) summary of the invention
The present invention proposes in order to address the above problem; the object of the present invention is to provide a kind of optical disc apparatus that is provided with light picker protection portion; in the time of can on the driving direction of light picker, producing impulsive force; suitably disperse to be applied to the impulsive force of light picker, thereby effectively protect light picker.
To achieve these goals; the optical disc apparatus that is provided with light picker protection portion of the present invention possesses along the radial direction of CD and can carry out the linear light picker that optical disc information is read in driving that comes and goes, among the present invention; described light picker is provided with protection portion, comprising:
The 1st detent, along at least one driving direction of above-mentioned light picker, the detent of the initial contact of above-mentioned light picker;
The 2nd detent, along with the driving direction of above-mentioned light picker, at light picker with after above-mentioned the 1st detent contacts, with the contacted detent of above-mentioned light picker.
Here, above-mentioned the 2nd detent preferably just can contact with above-mentioned light picker in above-mentioned the 1st detent and 0.5 microsecond after above-mentioned light picker contacts.
Above-mentioned the 2nd detent need be along the driving direction of above-mentioned light picker, be arranged on above-mentioned the 1st detent on 0.5 millimeter position.
Above-mentioned the 1st detent preferably can be made for soft synthetic resin material.
If above-mentioned soft synthetic resin parts will be more effective for foams.
The position that above-mentioned the 1st detent and the 2nd detent are provided with: a side of above-mentioned light picker is provided with guide rod along the moving direction of above-mentioned light picker, be used for guiding above-mentioned light picker, side relative with above-mentioned guide rod at above-mentioned light picker is provided with the guide portion that parallels with above-mentioned guide rod, be used for guiding a relative side of above-mentioned light picker, near one side to the more sensitive part of acceleration ratio of above-mentioned light picker in above-mentioned guide rod and the guide sections above-mentioned the 1st detent is being set, one side stronger relatively above-mentioned the 2nd detent is set.
Effect of the present invention:
The optical disc apparatus that is provided with light picker protection portion of the present invention that has above-mentioned formation and operate as mentioned above; in the time of can on the driving direction of light picker, producing impulsive force; suitably disperse to be applied to the impulsive force of light picker, thereby effectively protect light picker.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the planimetric map of existing optical disc apparatus;
Fig. 2 is the constitutional diagram that the light picker of Fig. 1 obtains impacting;
Fig. 3 is an embodiment planimetric map that is provided with the optical disc apparatus of light picker protection portion of the present invention;
Fig. 4 and Fig. 5 are respectively the enlarged drawing in the light picker zone of Fig. 3.
The symbol description of major part in the accompanying drawing:
31, supporting frame 33, rotating shaft
35, light picker 37, guide rod
39, guide portion 41a, 41b, the 1st detent
43a, 43b, the 2nd detent
(5) embodiment
Below with reference to accompanying drawings the embodiment that is provided with the optical disc apparatus of light picker protection portion of the present invention is elaborated.
Fig. 3 is an embodiment planimetric map that is provided with the optical disc apparatus of light picker protection portion of the present invention.Fig. 4 and Fig. 5 are respectively the enlarged drawing in the light picker zone of Fig. 3.
As shown in the figure, the optical disc apparatus that originally is provided with light picker protection portion comprises: the shell (not shown) that forms the barrel-shaped shape of inner space; Be arranged on the supporting frame 31 of enclosure; Be arranged on enclosure one side, rotation drives the rotating shaft 33 of CD; Radial direction along CD can carry out the round driving of linearity, reads the light picker 35 of optical disc information.
Originally the optical disc apparatus that is provided with light picker protection portion also comprises:
The 1st detent 41a, 41b, along at least one driving direction of above-mentioned light picker 35, the detent of above-mentioned light picker 35 initial contacts; The 2nd detent 43a, 43b, along with the driving direction of above-mentioned light picker, at light picker 35 with after above-mentioned the 1st detent 41a, 41b contact, with above-mentioned light picker 35 contacted detent.
One side of above-mentioned light picker 35 is provided with guide rod 37 along the moving direction of above-mentioned light picker 35, be used for guiding above-mentioned light picker 35, side relative with above-mentioned guide rod 37 at above-mentioned light picker is provided with the guide portion 39 that parallels with above-mentioned guide rod, is used for guiding a relative side of above-mentioned light picker 35.
In addition, the difference that light picker 35 constitutes according to parts, the zone (below be called weak section B) that the zone of the parts that are easy to be subjected to shock effect comparatively speaking is set or needs to reduce acceleration is different.In the middle of the present embodiment, the area B that is easy to be impacted is that center line C with respect to light picker 35 is along be horizontally installed on more close guide rod 37 one sides vertical with driving direction, rather than near guide portion 39 1 sides.
Like this, length direction along guide rod 37, on the both side ends zone of guide rod 37 and along the length direction of guide portion 39, both side ends zone in guide portion 39, along the horizontal direction of the driving direction of light picker 35, the 1st detent 41a, 41b and the 2nd detent 43a, the 43b that can reduce from the weak section B of light picker 35 to the acceleration in the zone guide rod 37 sides are set respectively.
Here, driving direction along light picker 35, roughly there are the interval of 0.5 microsecond in time in the 1st detent 41a, 41b and the 2nd detent 43a, 43b, on the distance, as light picker 35 and the 1st detent 41a, when 41b contacts respectively, the mutual distance D between light picker 35 and the 2nd detent 43a, the 43b is below 0.5mm.
The 1st detent 41a, 41b and the 2nd detent 43a, 43b are preferably soft synthetic resin material, such as urethane foam (Polyurethane Foam), P.E foams and polyvinyl chloride foam body foams such as (P.V.CFoam).
According to this structure, when the driving direction along light picker 35 applies impulsive force, light picker 35 will move along with guide rod 37 and guide portion 39, at first, light picker 35 meetings and the 1st detent 41a, 41b contact, and can underspeed, after the time interval of general 0.5 microsecond, contact with the 2nd detent 43a, 43b again, thereby can alleviate impact the weak section B of light picker 35.
In the middle of the previous embodiment, the situation of explanation is: need to alleviate the zone of acceleration, and the parts setting area that perhaps easily is hit comparatively speaking, promptly weak section B is arranged on the position of closing on guide rod 37, and the two ends of guide rod 37 are provided with the 1st detent respectively.But, if weak section B is near guide portion 39 1 sides, rather than, also can the 1st detent be set in guide portion 39 near guide rod 37 1 sides, the 2nd detent is set on guide rod.That is, near in described guide rod 37 and the described guide portion 39, the one side to the more sensitive part of acceleration ratio of described light picker 35 is provided with described the 1st detent, one side stronger relatively described the 2nd detent is set.
In addition, foregoing situation is the 1st detent and the 2nd detent situation when being arranged on guide rod 37 and the guide portion 39 respectively, still, considers and relation that peripheral miscellaneous part is provided with, also can be arranged on the supporting frame 31.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (6)
1, a kind of optical disc apparatus that is provided with light picker protection portion possesses along the radial direction of CD and can carry out the linear light picker that optical disc information is read in driving that comes and goes, and it is characterized in that described light picker is provided with protection portion, comprising:
The 1st detent, along at least one driving direction of described light picker, the detent of the initial contact of described light picker;
The 2nd detent, along with the driving direction of described light picker, at described light picker with after described the 1st detent contacts, with the contacted detent of described light picker.
2, the optical disc apparatus that is provided with light picker protection portion as claimed in claim 1 is characterized in that:
Described the 2nd detent is in described the 1st detent and 0.5 microsecond after described light picker contacts, just can contact with described light picker.
3, the optical disc apparatus that is provided with light picker protection portion as claimed in claim 1 is characterized in that:
Described the 2nd detent need be along the driving direction of described light picker, be arranged on described the 1st detent on 0.5 millimeter position.
4, the optical disc apparatus that is provided with light picker protection portion as claimed in claim 1 is characterized in that:
Described the 1st detent and the 2nd detent are that soft synthetic resin material is made.
5, the optical disc apparatus that is provided with light picker protection portion as claimed in claim 4 is characterized in that:
Described soft synthetic resin parts are foams.
6, as claim 1,2,3, the 4 described optical disc apparatus that are provided with light picker protection portion, it is characterized in that:
The position that is provided with of described the 1st detent and the 2nd detent is:
Along the moving direction of described light picker guide rod is set in a side of described light picker, be used for guiding described light picker, a side relative with described guide rod at described light picker is provided with the guide portion that parallels with described guide rod, be used for guiding a relative side of described light picker, in near described guide rod and described guide portion, one side to the more sensitive part of acceleration ratio of described light picker, described the 1st detent is set, one side relatively stronger described the 2nd detent is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017122 CN1674122A (en) | 2004-03-22 | 2004-03-22 | CD driving device set with pick up device protection part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017122 CN1674122A (en) | 2004-03-22 | 2004-03-22 | CD driving device set with pick up device protection part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1674122A true CN1674122A (en) | 2005-09-28 |
Family
ID=35046597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410017122 Pending CN1674122A (en) | 2004-03-22 | 2004-03-22 | CD driving device set with pick up device protection part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1674122A (en) |
-
2004
- 2004-03-22 CN CN 200410017122 patent/CN1674122A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |