KR200180350Y1 - Pickup driving apparatus - Google Patents

Abstract

The present invention relates to a pickup transporting device, and the guide portion for guiding the pickup base and the guide member provided with the fixed portion at the center thereof bent at right angles are rotatably mounted on a support fixed on the deck base, By fixing both ends with the bush and the fixing part through which the tilt cam is penetrated, the pick-up base coupled to the guide member can be easily replaced, thereby reducing the labor cost and the horizontal axis of the optical pickup device. The parallelism of the guide member with respect to the direction can be easily adjusted with one tilt cam, so that the load on the guide member when the pickup base is moved can be reduced to a minimum.

Description

Pickup transfer device

The present invention relates to a pick-up feeder for linearly reciprocating the optical pickup device to the disk side, and more particularly, to simplify the means for adjusting the parallelism of the guide shaft for guiding the pick-up base, and the pick-up base for feeding the guide shaft. It relates to a pick-up feeder that can be replaced easily.

In general, the conventional pickup and transfer apparatus for linearly reciprocating the optical pickup device for recording and / or reproducing information on a recording pit on the disc D in the radial direction of the disc is shown in Figs. As shown in FIG. 2, the turntable 12 is positioned on the deck base 10 to be in close contact with the non-magnetic portion of the disk, and the turntable 12 is rotated in a linear velocity manner. Is coupled to the axis of rotation. One side of the spindle motor 14 is provided with an optical pickup device for recording information on the disk or reproducing the recorded information, and a pickup transport means for linearly reciprocating it.

The pickup transport means is a drive motor 16 mounted on the rear side of the deck base 10, a drive gear 18 coupled to the rotating shaft of the drive motor 16 and the first, second, third reduction Gears 20, 22 and 24 and first and second guide shafts 26 and 28 fixed on the deck base 10 in parallel to guide the optical pickup device are provided.

The pick-up base 30 of the optical pickup device is slidably coupled to the first and second guide shafts 26 and 28, and gear-aligned with the third reduction gear 28 on one side of the pick-up base 30. The rack 30a is fixed by the fixing member, and the three parts including both ends of the first guide shaft 26 and one end of the second guide shaft 28 are in the horizontal axis direction in which the optical pickup device is conveyed. Inclination adjusting means for adjusting the inclined guide shafts 26 and 28 in parallel is fixed. And, the other end of the second guide shaft 28 is fixed by the fixing portion 32 of the "C" shape.

The inclination adjusting means includes three bushes 34 for fixing both ends of the first guide shaft 26 and one end of the second guide shaft 28 and through holes 34a of the bushes 34. At least one tilt cam 36 is coupled to the bottom of the deck base 10 so as to penetrate therethrough.

In the conventional pickup transfer device configured as described above, three bushes 34 and one fixing part 32 are respectively formed on the deck base 10, and then both bushes 34 at both ends of the first guide shaft 26 are formed. ), And the second guide shaft 28 is fixed to the other bush 34 and the fixing part 32. At this time, the first and second guide shafts 26 and 28 are coupled to each other while passing through the pickup base 30 of the optical pickup apparatus.

Then, when the first and second guide shafts 26 and 28 are not fixed in parallel with respect to the horizontal axis direction in which the optical pickup device is conveyed, the tilt cam penetrated through the through holes 34a of the bushes 34. Rotate 36 to adjust the parallelism of the first and second guide shafts 26 and 28.

When the driving motor 16 is driven in the state where the parallelism of the first and second guide shafts 26 and 28 is completed as described above, the driving gear 18 coupled to the rotation shaft of the driving motor 16 and the drive gear 18 are interlocked with each other. The linear movement of the rack 30a geared with the third reduction gear 24 while the rotational speed of the drive motor 16 is decelerated by the first, second and third reduction gears 20, 22 and 24 are reduced. As a result, the pickup base 30 is transported in the radial direction of the disk along the first and second guide shafts 26 and 28 to record and / or reproduce information on the disk surface.

However, as the pick-up base is coupled to the first and second guide shafts as described above, fixing the first and second guide shafts to a plurality of bushes and fixing parts fixed to the deck base is cumbersome to replace the pick-up base. Since the tilt cams must be adjusted to adjust the parallelism of the first and second guide shafts with respect to the horizontal axis direction in which the optical pickup device is conveyed, this not only delays the adjustment time but also the first and second guide shafts. There was a problem that can not be adjusted accurately the parallel state.

The present invention is to solve the above problems, the object of the present invention is to provide a pickup transport apparatus that can easily replace the pick-up base that is linear reciprocating along the guide member can reduce the labor accordingly have.

Another object of the present invention is to provide a pickup transport device that can easily adjust the parallelism of the guide member with respect to the horizontal axis direction of the optical pickup device with a single tilt cam to minimize the load on the guide shaft during linear reciprocation of the pickup base To provide.

1 is a plan view showing a pickup transport device installed on the deck base according to the prior art,

2 is a cross-sectional view A-A of the fixing part to which the guide shaft of the pickup transport apparatus shown in FIG. 1 is fixed;

Figure 3 is an exploded perspective view showing a guide shaft in the pickup transport apparatus according to the present invention,

Figure 4 is a state diagram showing an optical pickup device conveyed by the pickup transport apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10: deck base 12: turntable

14: spindle motor 16: drive motor

18: drive gear 20,22,24: 1st, 2nd, 3rd reduction gear

26, 28: first and second guide member 30: pickup base

30a: rack 32, 54: fixing part

34,52 bush 34a: through hole

36: tilt cam 50: guide member

50a, 50 ': guide part 50b: fixed part

56: support

The present invention for achieving the above object, the pickup base is slidably transported in the radial direction of the disk, a plurality of reduction gears for gear reduction with the rack of the pickup base to reduce the feed speed of the pickup base And a drive motor for interlocking the reduction gears, and a guide member for guiding the transfer of the pickup base, wherein the guide member includes a guide part for guiding the pickup base and a guide part. It is achieved by being bent at right angles in the center and provided as a fixed part for rotating the guide member.

Guide portion of the guide member according to a preferred embodiment of the present invention is fixed to one end of the bush is formed through holes, the other end of the guide portion is fixed to the bush through which the tilt cam is penetrated to adjust the parallelism of the guide member, The securing portion is achieved by rotatably mounted to a support fixed on the deck bay upon engagement of the pickup base.

Hereinafter, a preferred embodiment of the pickup transport apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 is a view showing a pickup transport apparatus according to the present invention, the configuration of the pickup transport means for transporting the optical pickup device is the same as the conventional configuration, the same reference numerals in the present design.

The present invention is mounted on the deck base 10, the spindle motor 14 for high-speed rotation of the disk in close contact with the upper surface of the turntable 12, the pick-up transfer so as to transfer the optical pickup device to one side of the spindle motor (14) Means are installed. The pickup transport means includes a drive motor 16 that provides a driving force, a drive gear 18 coupled to the rotational shaft thereof, and a first gear for reducing the rotational speed of the drive motor 16 while being geared with the drive gear 18. And a guide member 50 for guiding the third reduction gears 20, 22, 24 and the pickup base 30.

The guide member 50 guides in the center of the guide portions 50a and 50a 'and the guide portions 50a and 50a' facing each other in parallel to slidably couple the pickup base 30 in a sliding manner. It is provided with a fixed portion (50b) bent at a right angle so as to rotate the member 50 at a predetermined angle to engage the pickup base 30, the guide member 50 is made to have a "c" shape.

One end of each of the guide portions 50a and 50'a is fixed by the bush 52 and the fixing portion 54 where the through holes 52a are formed, and the fixing portion 50b is the deck base 10. It is rotatably mounted to a hook-shaped support 56 fixed to it. Then, the through hole 52a of the bush 52 is screwed to the deck base 10 to penetrate the tilt cam 36 for adjusting the parallelism of the guide member 50 with respect to the horizontal axis direction of the optical pickup device. (Description 52a is a through hole.)

Referring to the operation of the pickup transport apparatus according to the present invention configured as described above in detail.

Pick-up base which is rotatably mounted to the fixing part 50b of the guide member 50 on the support base 56 fixed on the deck base 10, and then slides to the guide parts 50a and 50a '. Both ends of the guide parts 50a and 50a 'are fixed to the bush 52 and the fixing part 54 in the combined state, so that the pickup base can be easily replaced as the optical pickup device is installed. Can be.

Thereafter, when the driving motor 16 is driven to transport the optical pickup apparatus for recording and / or reproducing information on the disk, the driving gear 18 coupled to the rotating shaft of the driving motor 16 and the interlocking device with the driving motor 16 are driven. As the feed speed is reduced by the first, second and third reduction gears 20 and 22 and 24, the rack 30a geared with the third reduction gear 24 is linearly transferred to guide portions 50a and 50a. The pickup base 30 coupled to ') is transferred in the radial direction of the disc to record and / or reproduce information on the disc surface.

At this time, when the guide portions 50a and 50a 'of the guide member 50 are not fixed in parallel to the horizontal axis direction in which the optical pickup apparatus is transported, one end of the guide portions 50a and 50a' is fixed. By rotating the tilt cam 36 which is penetrated by the through hole 52a of the bush 52, the parallelism of the guide member 50 can be easily adjusted, thereby minimizing the load on the guide portion during transport of the optical pickup device. Can be reduced.

According to the pickup transport apparatus according to the present invention as described above, it is possible to simply replace the pickup base coupled to the guide member linearly reciprocating movement to reduce the labor required by this, in particular in the horizontal axis direction of the optical pickup The parallelism of the guide member relative to the guide member can be easily adjusted with a single tilt cam, thereby reducing the load on the guide member when the pickup base is moved.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (3)

A pickup base slidably transported in a radial direction of the disc, a plurality of reduction gears geared with the rack of the pickup base to reduce the feed speed of the pickup base, a drive motor for linking the reduction gears, In the pickup transport apparatus having a guide member for guiding the transport of the pickup base, The guide member is a pickup portion for guiding the pick-up base and the pickup portion is bent at right angles to the center of the guide portion is provided with a fixed portion for rotating the guide member. According to claim 1, The guide portion is fixed to one end of the bush is formed through holes, the other end of the guide portion is fixed to the bush through the tilt cam to adjust the parallelism of the guide member, the fixed portion is Pick-up conveying apparatus, characterized in that rotatably mounted on a support fixed on the deck bay when the pickup base is coupled. The pickup transport apparatus according to claim 1, wherein the guide member has a shape of "'".