CN1609990A - Pickup shifter for optical disc player - Google Patents
Pickup shifter for optical disc player Download PDFInfo
- Publication number
- CN1609990A CN1609990A CN 200310108016 CN200310108016A CN1609990A CN 1609990 A CN1609990 A CN 1609990A CN 200310108016 CN200310108016 CN 200310108016 CN 200310108016 A CN200310108016 A CN 200310108016A CN 1609990 A CN1609990 A CN 1609990A
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- pick
- generating gear
- screw rod
- guiding
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Abstract
The pick-up shifter for CD player includes pick-up shifting motor, lead screw for driving with the pick-up shifting motor, guide feeder with gear rack meshing the thread in the lead screw, and pick-up unit fixed onto the guide feeder. It features that the guide feeder is provided with deviation preventing unit for preventing vertical deviation of the gear rack from the lead screw while resisting outer impact on the pick-up unit.
Description
Technical field
The present invention is the content of picking up mobile device of relevant Disc player.Particularly, be relevant when picking up the mobile motor high speed rotating, the content of picking up mobile device of the Disc player that the feed arrangement that prevents to lead breaks away from.
Background technology
CD is meant the memory media by the optical recording data, is the meaning of storage data on the disc of disc-shape.Disc player points to the laser of CD irradiation focusing, according to the phase place or the polarisation variation of the light that reads its reflectivity or reflex time, the device of reading of data.
The pick device of Disc player is the core apparatus of CD drive, plays a laser radiation in CD, record data or separate the effect of the data of read record.
Pick up mobile device and be that the pick device of showing this class is passed on power and the parts that drive, above-mentionedly pick up the mode and the mode that cooperates the screw rod that leads that mobile device has setting strip generating gear and pinion wheel.
At this, though the mode of setting strip generating gear and pinion wheel has advantage aspect noise or the access speed,, on compact type goods, be difficult to be suitable for because the space that parts occupied is bigger, and because increasing of number of components has the shortcoming of cost rising.
In contrast to this, cooperate the method for above-mentioned guiding screw rod to help the angle of thin design and cost more, but the mode that cooperates the guiding screw rod have the easy problem that breaks away from of guiding feed arrangement when picking up the mobile motor high speed rotating.
Fig. 1 and Fig. 2 are that Fig. 1 is the planimetric map of Disc player according to the drawing of existing Disc player, and Fig. 2 is the enlarged drawing that picks up the mobile device part.
As shown in Figure 1, according to the Disc player of prior art, comprise be used for mobile pick device 3 pick up mobile motor 1; Be connected in the above-mentioned guiding screw rod 2 that picks up mobile motor 1; Be arranged to be fit to the bar generating gear 5 of the flight of above-mentioned guiding screw rod 2; Pick device 3 in conjunction with the guiding feed arrangement 4 of above-mentioned generating gear 5; The main shaft 8 that guides above-mentioned pick device 3 to move.
Fig. 2 is the planimetric map that picks up mobile device, and when picking up mobile motor 1 rotation, guiding screw rod 2 will rotate, and according to the rotation of above-mentioned guiding screw rod 2, guiding feed arrangement 4 will advance and retreat.In order to make bar generating gear 5 be connected in the flight of above-mentioned guide vanes swing arm 2, use the connection strap generating gear spring 10 of bar generating gear 5 back.
But, the existing mobile device that picks up, when high speed rotating picks up mobile motor 5, the problem that has bar generating gear 5 to break away from easily.In order to prevent the disengaging of bar generating gear 5, can connect the bar generating gear with the elasticity dynamics of spring 10 and strengthen, but strengthen connecting the spring dynamics of bar shaped gear with spring 10, can strengthen the load that picks up mobile motor 1, the fast rotational that mobile motor is picked up in influence, this also just increases the principal element of the access time in the main performance evaluation index.
Moreover, even strengthen to connect the elasticity dynamics of picking up, falling etc. under the powerful external impact with spring 10, disengaging that also can't barrier rib generating gear 5 causes to the in addition powerful impact of pick device.
Summary of the invention
The present invention invents in order to address the above problem, and prevents that to provide the bar generating gear breaks away from from screw rod, and the access time is shortened, and the mobile device that picks up of resisting the Disc player of the impact that applies to pick device is a purpose.
To achieve the above object, the mobile device that picks up of Disc player of the present invention comprises and picks up mobile motor; According to the above-mentioned guiding screw rod that picks up the mobile motor driving; The guiding feed arrangement that possesses the bar generating gear that coincide with the flight of above-mentioned guiding screw rod; Be fixed in the pick device of above-mentioned guiding feed arrangement; It is characterized in that above-mentioned guiding feed arrangement comprises the prevent disengaging portion of above-mentioned generating gear in the vertical direction disengaging of above-mentioned guiding screw axis that prevent.
In addition, the above-mentioned disengaging portion that prevents prolongs from above-mentioned generating gear, forms around three of above-mentioned guiding screw rod.
Description of drawings
Fig. 1 and Fig. 2 are the drawing of existing Disc player;
Fig. 1 is the planimetric map of Disc player,
Fig. 2 is the enlarged drawing that picks up the mobile device part.
Fig. 3 is a structural drawings according to the first embodiment of the present invention to Fig. 5;
Fig. 3 is the planimetric map that picks up mobile device,
Fig. 4 is the planimetric map of guiding feed arrangement,
Fig. 5 is the front view (FV) of guiding feed arrangement.
Embodiment
Describe in detail according to one embodiment of the invention below with reference to drawing.
Fig. 3 is a structural drawings according to the first embodiment of the present invention to Fig. 5; Fig. 3 is the planimetric map that picks up mobile device, and Fig. 4 is the planimetric map of guiding feed arrangement, and Fig. 5 is the front view (FV) of guiding feed arrangement.
Fig. 3 is the content that relevant mobile device constitutes.The rotation of picking up mobile motor 1 drives the rotation of lead screw bar 2, with flight the bar generating gear 5 that coincide and the guiding feed arrangement 4 that is incorporated into above-mentioned generating gear 5 of above-mentioned guide vanes swing arm 2, moves forward and backward according to the rotation of above-mentioned guiding screw rod 2.
Fig. 4 and Fig. 5 are the relevant content that constitutes the guiding feed arrangement.Guiding feed arrangement 4 comprises bar generating gear 5; In order to make the bar generating gear be connected in the flight of above-mentioned guiding screw rod 2, the connection strap generating gear that is located at bar generating gear 5 back is with spring 10; Connect the teat 11 of above-mentioned generating gear in order to be provided with spring 10.
But, with the discrepancy of existing guiding feed arrangement 4 be exactly additionally to have increased the disengaging portion 6 that prevents.The above-mentioned disengaging portion 6 that prevents begins to prolong from the below of bar generating gear, and around three of above-mentioned guiding screw rod 2, formation prevents the shape of disengaging plate 61.At above-mentioned generating gear 5 with prevent between the disengaging portion 6, insert guiding screw rod 2 and drive.The different shape with same function need not can be derived in strict accordance with above-mentioned shape by the above-mentioned disengaging portion 6 that prevents.
Be benchmark with Fig. 5 below, the action according to one embodiment of the invention is described.
For mobile pick device 3, mobile motor 1 drive of picking up of rotation is connected in above-mentioned rotation of picking up the guiding screw rod 2 of mobile motor 1.
Observe the situation that guiding screw rod 2 rotates in a clockwise direction below.
At first, when low speed rotation, bar generating gear 5 is connected in the flight of guiding screw rod 2, and according to the rotation of guiding screw rod 2, bar generating gear 5 will move, and is pursuant to this guiding feed arrangement 4 and will moves with the pick device 3 that is connected in guiding feed arrangement 4.
During high speed rotating, according to above-mentioned revolving force, bar generating gear 5 produces vertical force to upside, " A " part with above-mentioned vertical force is a standard, on bar generating gear 5, produce revolving force with counter rotation, thereby according to above-mentioned revolving force, the phenomenon that bar generating gear 5 is extruded and broken away from from the flight of above-mentioned guiding screw rod 2 takes place.But, be fixed in guide screw groove 2 owing to prevent disengaging portion 6, thus 5 constraint as the above-mentioned drivings of bar generating gear, and prevent to break away from.Its result is even high speed rotating picks up mobile motor 1 and pick device 3 also can be effectively mobile.
Observe the situation of guiding screw rod 2 below with counter rotation.
At this moment, according to above-mentioned revolving force, bar generating gear 5 produces vertical force to downside, " A " part with above-mentioned vertical force is a standard, on bar generating gear 5, produce the revolving force of rotation in a clockwise direction, thereby, make bar generating gear 5 be connected in the flight of above-mentioned guiding screw rod 2 more, and it is not broken away from according to above-mentioned revolving force.
In addition, even when being subjected to and falling suitable powerful external impact, bar generating gear 5 can not break away from yet, thereby protection pick device 3 is not subjected to powerful impact.
As mentioned above, the present invention is owing to possess the disengaging of preventing portion 6, even do not strengthening connecting under bar shaped gear usefulness spring 10 situations, also prevented the disengaging of bar generating gear 5 when high speed rotating picks up mobile motor 1, thereby shorten the access time, improvement puts on the impact of pick device owing to the disengaging of bar generating gear 5 when external impact is arranged.
The invention provides and prevent that the bar generating gear from from the phenomenon that the guiding screw rod breaks away from, shortening the access time, opposing put on pick device impact Disc player pick up mobile device.
Claims (2)
- A Disc player pick up mobile device, comprise and pick up mobile motor; Pick up the guiding screw rod that mobile motor drives according to above-mentioned; The feed arrangement that possesses the bar generating gear that the flight with above-mentioned guide vanes swing arm matches; Be fixed in picking up of above-mentioned guiding feed arrangement; It is characterized in that above-mentioned guiding feed arrangement comprises above-mentioned the disengaging portion that prevents that states the vertical direction disengaging of guiding screw axis more than the generating gear that prevent.
- Disc player as claimed in claim 1 pick up mobile device, it is characterized in that the above-mentioned disengaging portion that prevents begins to prolong from above-mentioned generating gear, form around three of above-mentioned guiding screw rod and prevent disengaging plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108016 CN1609990A (en) | 2003-10-20 | 2003-10-20 | Pickup shifter for optical disc player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108016 CN1609990A (en) | 2003-10-20 | 2003-10-20 | Pickup shifter for optical disc player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1609990A true CN1609990A (en) | 2005-04-27 |
Family
ID=34758440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310108016 Pending CN1609990A (en) | 2003-10-20 | 2003-10-20 | Pickup shifter for optical disc player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1609990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751955B (en) * | 2008-12-05 | 2011-07-20 | 谷林电器(深圳)有限公司 | Compact disc player capable of monitoring compact disc states |
-
2003
- 2003-10-20 CN CN 200310108016 patent/CN1609990A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751955B (en) * | 2008-12-05 | 2011-07-20 | 谷林电器(深圳)有限公司 | Compact disc player capable of monitoring compact disc states |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |