KR20000061277A - Loading-feeding device and the method using one motor in disc player - Google Patents

Abstract

PURPOSE: A loading and feeding apparatus for a disk player using a single motor and a method of the same are provided for decreasing the number of parts needed for loading a disk and feeding an optical pick-up apparatus for thereby enhancing a productivity. CONSTITUTION: There are provided a driving motor(140), a feeding unit connected with the driving motor for feeding the optical pick-up apparatus(132), a driving force switching unit connecting the feeding unit to the driving motor(140), a locking unit for loading and unlocking the drive unit(130) to the bottom surface chassis, a disk transferring unit moved up and down by the locking unit and connected with the driving force switching unit for loading and unloading the disk(120), a moving unit connected with the driving force switching unit for driving the locking unit, and a loading start unit driven by the insertion operation of the disk(120) and inter-worked by the driving force switching unit.

Description

Loading-feeding device and the method using one motor in disc player}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading-feeding device and a method of a disc player, and more particularly to loading a disc by loading a disc with one drive motor installed in a drive unit while feeding the optical pickup device. And a loading-feeding device for a disk player using a single motor for improving productivity by reducing the number of parts required for feeding an optical pickup device, and a method thereof.

Top and side views of a typical disc player are shown schematically in FIGS. 1 and 2.

The disc player is provided with a drive unit 30 having a turntable 35 for rotating the disc 20 and an optical pickup device 33 for reproducing the disc 20 in the chassis 10 forming the side and bottom. .

The drive unit 30 is provided with a feeding motor 31 and a sled screw 32 rotated by the feeding motor 31, and the screw holder 34 of the optical pickup device 33 is a sled screw ( 32 is fed along the sled screw 32 from the outer circumference to the outer circumference of the disk 20 or from the inner circumference to the outer circumference of the disk 20 to reproduce the recording of the disk 20.

On the other hand, in such a disc player will be described with respect to the loading device for seating the disc 20 on the turntable 35 to maintain a playable state, and on the contrary ejecting the disc 20 to the outside.

First, the drive unit 30 is supported by the chassis 10 by a plurality of dampers 38, and a plurality of locking shafts 36 protrude toward the chassis 10 on both sides.

In addition, a roller 60 for transferring the disk 20 to the turntable 35 on the upper side of the drive unit 30 is rotatably supported by the chassis 10 so as to be engaged with the second interlocking gear group 64. It is installed in the copper plate 62. The fixed shaft 66 is fixed to the side of the first rotating plate 62 toward the chassis 10.

In addition, a clamp 70 for pressing the disk 20 to the turntable 35 and a second pivoting plate 72 on which the clamp 70 is supported are rotatably installed in the drive unit 30. The support shaft 74 protruding toward the chassis 10 is fixed to the second pivot plate 72.

On the other hand, at the bottom of the chassis 10 is a loading motor 40 having a worm gear 42 engaged with the second interlocking gear group 64 and a first interlocking gear group 44 engaged with the worm gear 42. 10) is installed on. In addition, a plate 82 for rotating the driven gear of the first interlocking gear group 44 to one side and a solenoid 80 for rotating the plate 82 are provided.

And the moving plate 50 which has the rack gear 52 meshed with the 1st interlocking gear group 44 by the action of the plate 82 is mutually supported by the inner surface of both chassis 10, respectively. The moving plate 50 includes an inclined groove 54 in a direction of lowering the fixed shaft 66 when the disk 20 is loaded, an inclined surface 56 in a direction of lowering the support shaft 74, and a drive unit. A plurality of fixing grooves 58 for preventing the flow of the locking shaft 36 fixed to the 30 is formed, respectively.

In addition, a locking plate 90 capable of holding the locking shaft 36 together with the moving plate 50 is fixed to the chassis 10.

Hereinafter, the loading operation of the disc player having the above structure will be described.

First, when the disk 20 is inserted into the upper side of the roller 60, the loading motor 40 rotates to rotate the roller 60 through the worm gear 42 and the second interlocking gear group 64, the disk 20 Is moved above the turntable 35.

Accordingly, as the optical pickup device 33 detects that the disk 20 is located at the chucking position, the control unit operates the solenoid 80 to rotate the plate 82, thereby racking the second interlocking gear group 64. It meshes with the gear tooth 52. Accordingly, as the moving plate 50 moves horizontally, the inclined groove 54 formed in the chassis 10 lowers the fixed shaft 66 to lower the first pivot plate 62 and the roller 60, and the inclined surface ( 56 lowers the support shaft 74 to lower the second pivoting plate 72 and the clamp 70 to seat the disk 20 on the turntable 35.

At the same time, the fixing groove 58 is disengaged from the locking shaft 36, and the locking plate 90 releases the locking shaft 36 so that the drive unit 30 is movable to the chassis 10 only by the damper 38. Supported. The damper 38 attenuates vibrations transmitted from the outside.

Therefore, the drive unit 30 rotates the turntable 35 to rotate the disk 20, and the optical pickup device 33 reproduces the information recorded on the disk 20. FIG.

On the other hand, when withdrawing the disk 20, the loading motor 40 is rotated in the reverse direction to move the moving plate 50 through the first interlocking gear group 44 in the opposite direction as when loading the disk 20. Accordingly, the inclined groove 54 and the inclined surface 56 raise the fixed shaft 66 and the support shaft 74, respectively, to release the clamp 70 from the disk 20, and the roller 60 is the disk 20. To increase.

In addition, the fixing groove 58 of the moving plate 50 is coupled to the locking shaft 36 and the locking plate 90 holds and fixes one fixing groove 58 so that the drive unit 30 is locked.

At this time, since the roller 60 is always rotated by the second interlocking gear group 64, the roller 60 is discharged immediately after the disk 20 is raised.

However, in the conventional loading device, moving plates 50 are provided on both sides of the chassis 10 to lift and lower the rollers 60 and the clamps 70, and the locking plate (for fixing the drive unit 30) 90) and so on. Therefore, the conventional loading device has a problem that the number of parts is excessive, and the assembly process is complicated and productivity is low.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to load a disc with one drive motor installed in a drive unit and to feed the optical pickup device, thereby loading and loading the disc. Disclosure of the Invention The present invention provides a loading-feeding device and a method for loading a disk player using a single motor to improve productivity by reducing the number of parts required for feeding the device.

1 is a schematic top view of a conventional disc player.

FIG. 2 is a side schematic view of the disc player shown in FIG. 1; FIG.

3 is a schematic top view of a disc player showing one embodiment of a loading-feeding device according to the present invention;

4 is a side schematic view of the disc player shown in FIG. 3;

5 is a schematic diagram showing a connection relationship between the main parts shown in FIG.

Fig. 6A is a plan view showing a disc insertion or ejection action of the disc player shown in Fig. 3;

6B is a side view of the disc player shown in FIG. 6A.

Fig. 7A is a plan view showing a disc chucking or releasing operation of the disc player shown in Fig. 3;

FIG. 7B is a side view of the disc player shown in FIG. 7A. FIG.

FIG. 8A is a plan view showing an action of switching from a loading operation of the disc player shown in FIG. 3 to a feeding operation or an inverse operation thereof; FIG.

8B is a side view of the disc player shown in FIG. 8A.

9 is a block diagram of a loading-feeding method according to the present invention.

<Explanation of symbols for main parts of drawing>

110: bottom chassis 112: fixing hole

120: disk 130: drive unit

131: top chassis 132: optical pickup device

133: screw holder 134: turntable

136: tension spring 138: fixed shaft

140: drive motor 142: rotary shaft gear

144: relay gear 146: first switching gear

148: second shift gear 150: pivoting lever

152: central axis 154: protrusion

156: long hole 160: interlocking lever

162: protrusion 170: clutch lever

172: rack gear 174: bending long

176: center builder 180: moving plate

182: arc type gear 183: straight gear

184: inclined groove 186: inclined surface

187: bending plate 187-1: the first boss

187-2: Second Boss 188: Arc Groove

189: straight groove 190: rotating holder

192: roller 194: shaft gear

195: center shaft gear 196: transmission gear

197: jamming protrusion 198: jamming jaw

200: clamp 202: rotating plate

204: support lever 210: sled screw

212: Axial Gear 214: Piston

220: rotating plate 222: center driven gear

224: first interlocking gear 226: rotating shaft

228: second interlocking gear 230: tension spring

232: torsion spring

The loading-feeding apparatus of the present invention includes a drive motor; Feeding means detached from the driving motor and feeding an optical pickup device; A power switching means detached from the drive motor, and adapted to detach the feeding means from the drive motor; Locking means for locking and unlocking the drive unit to the bottom chassis; A disk conveying means which is lifted by the locking means and detached from the power switching means to load and eject the disk; Moving means detached from the power switching means to drive the locking means; Loading initiation means operated by the insertion operation of the disc to interlock the moving means with the power switching means; And a clamping means which is lifted by the moving means to chuck the disk to a turntable of the drive unit. And a clamping means is installed on the drive unit.

In such a loading-feeding apparatus, when a disk is inserted into the upper side of the drive unit by a disk conveying means driven by a drive motor, the disk operates the loading start means to link the moving means to the power switching means. Accordingly, as the power of the drive motor is transmitted to the moving means through the power switching means to drive the locking means, the disk conveying means is separated from the disk, and the drive unit is in the unlocked state. At the same time, the clamping means chuck the disk to the turntable.

Then, the power transmitted to the moving means is interrupted by the power switching means, and power is transmitted to the feeding means to move the optical pickup apparatus to the disc reproducing position.

On the other hand, when the disc is discharged, when the feeding means moves the optical pickup device to the feeding end position by the rotational force of the drive motor, the power switching means blocks the power transmitted to the feeding means and transmits power to the moving means. Accordingly, the moving means releases the chucking of the disk through the clamping means, operates the locking means to eject the disk to the disk ejecting means, and locks the drive unit to the bottom chassis.

On the other hand, the loading-feeding method of the present invention, the loading start step of loading the disk by rotating the roller by the power of the drive motor; A loading completion detection step of detecting insertion completion of the disk by a rotation lever; A disk chucking step of transmitting power of the driving motor to the moving plate by the action of the rotation lever to release the roller from the disk, and to lower the clamp to chuck the disk; A power switching step of separating power from the driving motor from the roller and the moving plate and transferring power to a sled screw; A feeding start step of rotating the sled screw to move the optical pickup device to the inner circumference of the disk; A disc reproducing step of reproducing the disc with the optical pickup apparatus; Feeding end step of rotating the drive motor to move the optical pickup device to the outer periphery of the disk; A power reverse switching step of discharging power of the driving motor from the sled screw and transmitting power to the roller and the moving plate; And a disk ejecting step of lifting the clamp to move away from the disk by moving the moving plate, and ejecting the disk by raising the roller.

In this loading-feeding method, the disk is inserted into the upper side of the drive unit by rotating the roller by the power of the driving motor in the loading start step, the completion of the disk is detected by the rotation lever in the loading completion detection step, and the disk chucking step The power of the drive motor is transmitted to the moving plate by the action of the rotation lever to release the roller from the disk, and the clamp is lowered to chuck the disk.

Subsequently, in the power switching stage, the power of the drive motor is separated from the roller and the moving plate, and the power is transmitted to the sled screw.In the feeding step, the optical pickup device is moved to the inner circumference of the disc by rotating the sled screw with the power of the drive motor. After that, the disc is reproduced by the optical pickup apparatus in the disc reproduction step.

Then, by rotating the drive motor in reverse by rotating the drive motor at the end of feeding, the optical pickup device is moved to the outer circumference of the disc, and the power of the drive motor is separated from the sled screw in the power reverse switching step, and the roller and It transmits power to the moving plate.

Then, in the disc ejection step, the clamp is raised again to move away from the disc by moving the moving plate, and the roller is raised to eject the disc.

As described above, the loading-feeding apparatus and method of the present invention perform loading operation of the disk and feeding operation of the optical pickup device using only one driving motor, and reduce productivity by reducing the number of parts required for loading the disk and feeding the optical pickup device. Can be improved.

The following describes a preferred embodiment of the loading-feeding apparatus and method according to the present invention to facilitate the practice of the present invention.

A schematic plan view of the disc player according to the present embodiment is shown in Fig. 3 and a side view in Fig. 4. 5 shows a side view showing the connection relationship between the main parts, and the overlapping parts are arranged side by side, which is somewhat different from those shown in FIGS. 3 and 4. 10 shows a block diagram of the loading-feeding method.

As shown in this figure, this embodiment includes a drive motor 140; Feeding means detached from the driving motor 140 and feeding the optical pickup device 132; A power switching means detached from the drive motor 140 and detached from the feeding motor to the drive motor 140; Locking means for locking and unlocking the drive unit 130 to the bottom chassis 110; A disk conveying means which is lifted by the locking means and detached from the power switching means to load and eject the disk 120; Moving means detached from the power switching means to drive the locking means; Loading initiation means operated by the insertion operation of the disc 120 to link the moving means to the power switching means; And clamping means for lifting and lowering by the moving means to chuck the disk 120 to the turntable 134 of the drive unit 130.

The driving motor 140, the feeding means, the power switching means, the locking means, the disk conveying means, the moving means, the loading start means and the clamping means are installed on the drive unit 130.

The feeding means is coupled to the screw holder 133 of the optical pickup device 132, and is formed on the sled screw 210 and the sled screw 210 is installed to flow in the transport direction of the optical pickup device 132, The relay gear 144 is always meshed with the axial rotation gear 212 and the rotation shaft gear 142 of the drive motor 140, and meshed with the axial rotation gear 212 at the start of the feeding operation of the optical pickup device 132. Is made of.

In addition, the drive unit 130 is provided with a tension spring 136 for holding the optical pickup device 132 on the outer circumference of the disk 120.

On the other hand, the power switching means is a rotating plate 220 for detaching the sled screw 210 to the relay gear 144, the shaft is supported by the rotating plate 220 is the rotation center of the rotating plate 220, the drive motor 140 A first driven gear 224 detached from the center driven gear 222, the first interlocking gear 224 axially supported by the rotating plate 220 and engaged with the central driven gear 222, and moving the moving means; The second interlocking gear 228 is meshed with the first interlocking gear 224 and detached from the disk conveying means.

In addition, a spur gear is formed on the side meshed with the rotary shaft gear 142, and a worm gear is formed on the side meshed with the center driven gear 222, so that the first switching gear 146 for switching the rotational force is provided at right angles.

Here, the sled screw 210 has a piston 214 formed at one end thereof, and a cylinder 251 into which the piston 214 is flowably inserted is formed at the rotating plate 220. In addition, the tension plate 230 for holding the rotating plate 220 at all times to hold the sled screw 210 in the direction interlocked with the relay gear 144 is provided.

The central shaft is continuous with the arc-shaped groove 188 and the arc-shaped groove 188 for guiding the rotating shaft 226 of the first interlocking gear 224 so that the power of the first interlocking gear 224 can be transmitted to the moving means. A bending plate 187 having a straight groove 189 for maintaining the guided state of 152 is formed integrally with the moving means.

Meanwhile, the moving means includes a moving plate 180 having an inclined groove 184 and an inclined surface 186, and an arc gear 182 and an arc machine in which the gears formed in the moving plate 180 are guided and provided in the power switching means. The straight gear 183 continuous to the jay 182, the first boss 187-1 and the second boss 187-2 formed on the moving plate 180, and the first boss 187-1. Has a bent hole 174 to which the central long hole 176 and the second boss 187-2 are coupled, and a rack gear 172 extending to the straight gear 183 and rotated by the loading start means. It is made of a clutch lever 170.

The locking means is formed at the end of the rotation holder 190 and the rotation holder 190 having a locking protrusion 197 inserted into the inclined groove 184 formed on the moving plate 180 and the bottom chassis 110. It consists of a locking jaw (198) is inserted into the fixing hole 112, is provided with a torsion spring (232) for holding the pivot holder 190 always down.

On the other hand, the disk conveying means is supported by the second switching gear 148, the spur gear and the worm gear which is meshed with the second interlocking gear 228, and the second switching gear 148 is supported by the rotation center of the rotation holder 190 The central shaft gear 195 meshed with the worm gear, the transmission gear 196 interlocked with the central shaft gear 195, the roller 192 in contact with the disk 120, and the transmission gear formed on the roller 192. It consists of a shaft gear 194 linked to (196). The second switching gear 148 is installed on the bottom surface of the upper chassis 131 that forms the upper surface of the drive unit 130 together with the driving motor 140.

Here, the transmission gear 196 and the roller 192 are axially supported by the rotation holder 190.

Then, the loading start means is rotated about the central axis 152 fixed to the drive unit 130, a protruding piece 154 is formed in contact with the disk 120 at one end of the center of rotation is formed, the other end of the long hole ( 156 is rotated around the rotation lever 150 and the fixed shaft 138 fixed to one side of the drive unit 130 so that the clutch lever 170 is interlocked with the first interlocking gear 224, It consists of an interlocking lever 160 is formed with a projection 162 inserted into the long hole 156.

In addition, an inclined protrusion 162 is formed at one end of the clutch lever 170, and a curved protrusion 162 is formed at one end of the interlocking lever 160 in contact with the inclined protrusion 162.

Meanwhile, the clamping means includes a clamp 200 for pressing the disk 120 to the turntable 134 and a support lever 204 for fixing the clamp 200 and supported on the inclined surface 186 of the moving plate 180. It consists of a rotating plate 202.

Hereinafter will be described the step-by-step operation of the loading-feeding device and method having the configuration as described above.

The state before the disk 120 is inserted is shown in the top view of Fig. 6A and the side view of Fig. 6B.

In this way, the state before the disk 120 is inserted, the optical pickup device 132 is moved along the sled screw 210 to the position which is the outermost circumference of the disk 120 and is supported by the tension spring 136 In addition, the shaft gear 194 is separated from the relay gear 144 to be in a state where power is cut off to the sled screw 210.

In addition, the central shaft 152 of the first interlocking gear 224 is positioned in the straight groove 189 of the bending plate 187, and the clutch lever 170 has a moving plate (bending) at the bent portion of the bending hole 174. As the second boss 187-2 formed in the 180 is positioned, the rack gear 172 is displaced from the first interlocking gear 224 so that power is cut off from the moving plate 180. .

On the other hand, only the second switching gear 148, through which power is transmitted to the roller 192, is engaged with the second interlocking gear 228. When the driving motor 140 rotates, the central shaft gear 195 and the transmission gear 196 are rotated. The roller 192 is rotated through the shaft gear 194.

And the rotation holder 190 is moving plate 180 is moved to the left side with respect to Figure 6b as the locking projection 197 is located at the bottom of the inclined groove 184 and receives the elasticity of the torsion spring 232, It is rotated about the central shaft gear 195 to raise the roller 192 so that the roller 192 is in the entry position of the disk 120, on the contrary, the locking jaw 198 is fixed to the bottom chassis 110 ( And the drive unit 130 is locked.

In addition, the rotation lever 150 is connected to the interlocking lever 160 through the projection 162 inserted into the long hole 156, the curved projection 162 of the interlocking lever 160 is an inclined projection of the clutch lever 170. It is in a state located above 162.

First, the loading start step (S ₁ ) will be described.

The state in which loading is started by inserting the disc 120 is shown in the top view of Fig. 7A and the side view of Fig. 7B.

When the disk 120 is inserted into contact with the roller 192, the driving motor 140 is operated by a separate sensing means (not shown) to rotate the rotary gear 142, the first switching gear 146, and the center driven gear ( 222, the first interlocking gear 224, the second interlocking gear 228, the second switching gear 148, the central shaft gear 195, the transmission gear 196, and the shaft gear 194 through the roller 192. As shown in FIG. 2, the disc 120 is positioned above the drive unit 130.

Next, the loading completion detection step S ₂ will be described.

As the innermost end of the disk 120 is pushed in contact with the protruding piece 154 of the rotation holder 190, the rotation holder 190 rotates clockwise about the central axis 152 with reference to FIG. 7A. The long hole 156 pushes the protrusion 162 of the interlocking lever 160 to the left. Accordingly, the interlocking lever 160 rotates counterclockwise with respect to the fixed shaft 138 with reference to FIG. 7B so that the curved protrusion 162 pushes the inclined protrusion 162 of the clutch lever 170.

Next, the disk chucking step S ₃ will be described.

As the clutch lever 170 rotates counterclockwise with reference to FIG. 7A, the first interlocking gear 224 meshes with the rack gear 172 to transfer the clutch lever 170 to the right. In this case, the central long hole 176 and the bending long hole 174 are moved to the right side so that the left end is caught by the first boss 187-1 and the second boss 187-2.

Accordingly, the clutch lever 170 transfers the moving plate 180 to the right so that the linear gear 183 formed on the moving plate 180 meshes with the first interlocking gear 224. Therefore, as the moving plate 180 is moved to the right, the inclined groove 184 pushes the locking projection 197 of the rotation holder 190 to rotate the rotation holder 190 counterclockwise with reference to FIG. 7B. , Roller 192 is dislodged from disk 120.

At the same time, the locking jaw 198 formed at the end of the rotation holder 190 is lifted out of the fixing hole 112 of the bottom chassis 110, so that the drive unit 130 can be freely flowed. The drive unit 130 is movably supported by the chassis 10 only by the damper 38 shown in FIG. 1, and the damper 38 attenuates vibrations transmitted from the outside.

In addition, the inclined surface 186 formed on the moving plate 180 lowers the support lever 204 formed on the rotating plate 202 to lower the clamp 200 fixed to the rotating plate 202 to turn the disk 120 into a turntable ( 134).

Next, the power switching step (S ₄ ) will be described.

The power transmitted to the moving plate 180 is interrupted while the disk 120 is chucked, and the power transmitted to the sled screw 210 is shown in a plan view of FIG. 8A and a side view of 8B.

The moving plate 180 no longer moves to the right while the locking protrusion 197 is sufficiently raised along the inclined groove 184. Accordingly, the first interlocking gear 224 moves through the linear gear 183 to the arc-shaped gear 182, and the rotation shaft 226 of the first interlocking gear 224 is a straight groove () of the bending plate 187. It moves from 189 to arc-shaped groove 188.

At this time, as the rotating plate 220 is rotated counterclockwise with respect to the center driven gear 222 with respect to the center driven gear 222 by the tension spring 230 which always tensions the rotating plate 220, the second interlocking gear 228 Is separated from the second switching gear 148 and the power transmitted to the roller 192 is cut off. At the same time, the piston 214 of the sled screw 210 is pushed by the cylinder 251 formed on the rotating plate 220 such that the shaft gear 194 is engaged with the relay gear 144.

Next, the feeding start step S ₅ will be described.

When the power of the driving motor 140 is transmitted to the sled screw 210 through the relay gear 144, the screw holder 133 is caused by the elasticity of the tension spring 136 that holds the optical pickup device 132 The feeding operation of the optical pickup device 132 is started by being engaged with the screw of the sled screw 210.

The operation of feeding the optical pickup device 132 to the playback position of the disc 120 is illustrated in the plan view of FIG. 3 and the side view of FIG.

The optical pickup device 132 moves to the innermost circumference of the disk 120 by the rotation of the sled screw 210.

Next, the disc playback step S ₆ will be described.

The optical pickup device 132 moved to the innermost circumference of the disk 120 moves from the inner circumference of the disk 120 to the outer circumference by the slow reverse rotation of the driving motor 140, and the laser is located at the pit recorded on the disk 120. The information recorded as pits is reproduced from the light reflected by the irradiation of the beam.

Next, the feeding end step (S ₇ ) will be described.

When the disk 120 is finished playing, the drive motor 140 rotates rapidly in the same direction as the disk playing step S ₆ to rotate the sled screw 210, so that the optical pickup device 132 is a sled screw ( It moves along the outermost circumference of the disk 120 along 210, as shown in the plan view of FIG. 8A and the side view of 8B.

As such, when the optical pickup device 132 moves to the outermost circumference of the disc 120, the optical pickup device 132 is supported by the tension spring 136 and no longer moves. Even in this state, the sled screw 210 continues to rotate, in which case the sled screw 210 is pushed toward the rotating plate 220 by the screw holder 133.

Next, the power reverse switching step S ₈ will be described.

The shaft gear 194 is separated from the relay gear 144 by the push of the sled screw 210, and the power transmitted to the sled screw 210 is cut off, and the piston 214 pushes the cylinder 251 to rotate the rotating plate. 220 overcomes the elasticity of the tension spring 230 and is rotated clockwise with reference to FIG. 8A about the center driven gear 222.

7A and 7B, the rotation shaft 226 of the first interlocking gear 224 moves along the arc-shaped groove 188 of the bending plate 187 to the linear groove 189 and the second interlocking movement. The gear 228 is engaged with the second switching gear 148 so that rotational force is transmitted to the roller 192, and the first interlocking gear 224 passes through the arc gear 182 formed on the moving plate 180, and is a straight gear. To the teeth 183.

Next, the disc ejection step S ₉ will be described.

The state in which the disc 120 is discharged is the same as the plan view of FIG. 6A and the side view of FIG. 6B.

As the moving plate 180 is moved to the left side by the rotation of the first interlocking gear 224, the inclined surface 186 pushes the support lever 204 formed on the rotating plate 202 to be fixed to the rotating plate 202. The chucking of the disk 120 is released by raising the clamp 200 from the disk 120.

In addition, the inclined groove 184 formed on the moving plate 180 pushes down the locking projection 197 of the rotation holder 190 to rotate the rotation holder 190 in the clockwise direction with reference to FIG. It is in contact with the disk 120 again. At the same time, the locking jaw 198 formed at the end of the rotation holder 190 is inserted into the fixing hole 112 of the bottom chassis 110 to be in a locked state to prevent the flow of the drive unit 130.

Subsequently, the first interlocking gear 224 is engaged with the rack gear 172 of the clutch lever 170 to transfer the clutch lever 170 to the left side. In this case, the central long hole 176 and the bending long hole 174 are moved to the left side so that the right end is caught by the first boss 187-1 and the second boss 187-2.

Accordingly, the rack gear 172 of the clutch lever 170 is pushed by the first interlocking gear 224 and rotated clockwise with reference to FIG. 6A to allow the second boss 187-to the bent portion of the bending hole 174. As 2) is positioned, power of the first interlocking gear 224 is not transmitted to the moving plate 180 and the clutch lever 170.

On the other hand, the roller 192 in contact with the disk 120 continues to rotate and discharges the disk 120 from the drive unit 130 to the outside.

This state is the same as before the disk 120 is inserted.

As described above, the disc player according to the loading-feeding apparatus and method of the present embodiment performs the loading of the disc 120 and the feeding operation of the optical pickup apparatus 132 by one driving motor 140.

While the invention has been shown and described with respect to certain preferred embodiments, the invention is not limited to the embodiments described above, but in the field of which the invention pertains without departing from the spirit of the invention as claimed in the claims. Any person with ordinary knowledge will be able to make various modifications.

The present invention made clear through the above embodiment, the drive motor 140; Feeding means detached from the driving motor 140 and feeding the optical pickup device 132; Power switching means detached from the drive motor 140 and detached from the feeding motor to the drive motor 140; Locking means for locking and unlocking the drive unit 130 to the bottom chassis 110; A disk conveying means which is lifted by the locking means and detached from the power switching means to load and eject the disk 120; Moving means detached from the power switching means to drive the locking means; The clamping means for actuating by the inserting operation of the disk 120 to lift and move the loading means to the power switching means and the lifting means to chuck the disk 120 to the turntable 134 of the drive unit 130. The drive motor 140, the feeding means, the power switching means, the locking means, the disk conveying means, the moving means, the loading start means and the clamping means are the load-feeding device of the disc player installed on the drive unit 130 and loading the initial stage (S ₁₎ by turning the power to the roller 192 of drive motor 140 to load the disc 120; Loading completion detection step (S ₂ ) for detecting the completion of the insertion of the disk 120 to the rotation lever 150; Power of the driving motor 140 is transmitted to the moving plate 180 by the action of the rotation lever 150 to release the roller 192 from the disk 120, and to lower the disk 200 by lowering the clamp 200. A chucking disk chucking step (S ₃ ); A power switching step (S ₄ ) which separates the power of the driving motor 140 from the roller 192 and the moving plate 180 and transmits power to the sled screw 210; Feeding start step (S ₅ ) for rotating the sled screw 210 to move the optical pickup device 132 to the inner circumference of the disk 120; A disc reproducing step S ₆ of reproducing the disc 120 by the optical pickup device 132; Feeding end step (S ₇ ) for rotating the drive motor 140 to move the optical pickup device 132 to the outer periphery of the disk 120; A power reverse switching step (S ₈ ) which separates the power of the driving motor 140 from the sled screw 210 and transmits power to the roller 192 and the moving plate 180; And a disk discharging step (S ₉ ) of displacing the disk 120 by raising the clamp 200 by moving the moving plate 180 to disengage it from the disk 120 and raising the roller 192. As a loading-feeding method of a disc player, a disc 120 is loaded by one drive motor 140 installed in the drive unit 130 while the optical pickup device 132 can be fed, There is an effect of improving the productivity by reducing the number of parts required for loading and feeding of the optical pickup device 132.

Claims (7)

Drive motor 140; Feeding means detached from the driving motor 140 and feeding the optical pickup device 132; A power switching means detached from the drive motor 140 and detached from the feeding means to the drive motor 140; Locking means for locking and unlocking the drive unit 130 to the bottom chassis 110; A disk conveying means which is lifted by the locking means and detached from the power switching means to load and discharge the disk 120; Moving means detached from the power switching means to drive the locking means; Loading initiation means operated by the insertion operation of the disc 120 to link the moving means to the power switching means; And And a clamping means which is lifted by the moving means to chuck the disk 120 to the turntable 134 of the drive unit 130. The drive motor 140, the feeding means, the power switching means, the locking means, the disk conveying means, the moving means, the loading start means and the clamping means are installed on the drive unit 130 disc player using a single motor Loading-feeding device. According to claim 1, wherein the power switching means comprises a rotary plate 220 for detaching the feeding means to the drive motor 140; A central driven gear 222 axially supported by the rotating plate 220 to become a rotation center of the rotating plate 220 and detached from the driving motor 140; A first interlocking gear 224 axially supported by the rotating plate 220 and engaged with the center driven gear 222 to transfer the moving means; A second interlocking gear 228 axially supported by the rotating plate 220 and engaged with the first interlocking gear 224 to be detached from the disk conveying means; And The arc-shaped groove 188 is formed integrally with the moving means and guides the rotating shaft 226 of the first interlocking gear 224 so that the power of the first interlocking gear 224 can be transmitted to the moving means. And a bending plate 187 having a straight groove 189 that is continuous to the arc groove 188 and maintains the guided state of the central axis 152. Loading of a disc player using a single motor -Feeding device. According to claim 2, The feeding means is coupled to the screw holder 133 of the optical pickup device 132, Sled screw 210 is installed to be movable in the transport direction of the optical pickup device 132; Axial rotation gear 212 formed in the sled screw 210; And It is made of a relay gear (144) is always meshed with the rotary shaft gear (142) of the drive motor (140), and meshed with the shaft rotary gear (212) at the start of the feeding operation of the optical pickup device (132); The sled screw 210 has a piston 214 formed at one end thereof; The rotating plate (220) is a disc player loading-feeding device using a single motor, characterized in that the cylinder (251) is formed to be movable to the piston (214). The method of claim 1, wherein the moving means is formed with an inclined groove 184 for elevating the locking projection 197 provided in the locking means and the inclined surface 186 for elevating the support lever 204 provided in the clamping means Moving plate 180; An arc gear 182 formed on the moving plate 180 and guided by a gear provided in the power switching means and a straight gear 183 continuous to the arc gear 182; A first boss 187-1 and a second boss 187-2 formed on the moving plate 180; And The central gear hole 176 to which the first boss 187-1 is coupled and the bending gear 174 to which the second boss 187-2 is coupled and the rack gear extending to the linear gear 183 ( And a clutch lever (170) rotated by the loading start means (172). Loading-feeding apparatus for a disc player using a single motor, characterized in that consisting of. According to claim 1, wherein the locking means is a rotating holder (190) rotated by the moving means; A torsion spring 232 which constantly holds the pivot holder 190 downward; And A locking jaw 198 formed at one end of the pivot holder 190 and inserted into a fixing hole 112 formed in the bottom chassis 110; The disc transfer means is connected to the power of the power switching means second switching gear for switching the rotational force at right angles (148); A central shaft gear 195 axially supported by the pivot center of the pivot holder 190 and meshed with the second switching gear 148; A transmission gear 196 interlocked with the central shaft gear 195; A roller 192 in contact with the disk 120; And And a shaft gear (194) formed on the roller (192) and interlocked with the transmission gear (196). The loading-feeding apparatus of a disc player using a single motor, characterized in that consisting of. According to claim 1, The loading start means is rotated about the central axis 152 is fixed to the drive unit 130, Protrusion piece 154 is in contact with the disk 120 at one end of the rotation center is Is formed, the rotating lever 150, the long hole 156 is formed at the other end; And Rotating around a fixed shaft 138 fixed to one side of the drive unit 130 to allow the moving means to interlock with the power switching means, the projection 162 is inserted into the long hole 156 is formed Interlocking lever (160); Loading-feeding device of a disc player using a single motor, characterized in that consisting of. Loading starting step (S ₁ ) for loading the disk 120 by rotating the roller 192 by the power of the drive motor 140; A loading completion detection step (S ₂ ) of detecting a completion of insertion of the disk 120 by a rotation lever 150; Power of the driving motor 140 is transmitted to the moving plate 180 by the action of the rotation lever 150 to separate the roller 192 from the disk 120 and lower the clamp 200 to lower the disk. A disk chucking step S ₃ of chucking 120; A power switching step (S ₄ ) of separating the power of the drive motor 140 from the roller 192 and the moving plate 180 and transmitting power to the sled screw 210; A feeding start step (S ₅ ) of rotating the sled screw (210) to move the optical pickup device (132) to the inner circumference of the disc (120); A disc reproducing step (S ₆ ) of reproducing the disc (120) by the optical pickup device (132); Feeding end step (S ₇ ) for rotating the drive motor 140 to move the optical pickup device 132 to the outer periphery of the disk 120; A power reverse switching step (S ₈ ) which separates the power of the driving motor 140 from the sled screw 210 and transmits power to the roller 192 and the moving plate 180; And The disk discharge step (S ₉ ) to lift the clamp 200 to move away from the disk 120 by moving the moving plate 180, and to discharge the disk 120 by raising the roller 192. Loading method of disc player using a single motor, characterized in that consisting of.