KR20010009924A - Disk loading apparatus - Google Patents

Abstract

PURPOSE: A device for transferring disk in a disk driver is provided to precisely guide the disk while reducing size/weight of the device. CONSTITUTION: Levers guiding transfer of a disk(D) are interlocked to connect power to components clamping the disk. In connecting structure of first/second balance levers(60,62) interlocked with the first and the second holder lever(65,67), interlocking apertures(60a,62a) are formed on the balance levers. Interlocking protrusions(65t,67t) of the holder levers are located in the interlocking apertures. Guide protrusion(81) of a sensor lever(80) butts a driving plate(75) to a driving gear(73). Herein, the holder levers and the balance levers are combined with each other by a connect lever(85) of the sensor lever. Thus, a load applied to a roller(53) is minimized while transferring the disk.

Description

Disk Loading Apparatus of Disk Driver

The present invention relates to a disk driver, and more particularly, to a disk transport apparatus of a disk driver for transporting a disk into and out of the disk driver.

1 and 2 show the configuration of a roller type disk driver according to the prior art. According to this, the frame 1 constitutes the external appearance of the disc driver, and a structure for driving the disc D is provided inside the frame 1. The front plate 2 is provided at the front of the frame 1, and the front plate 2 is formed with a slot 2 'carrying the disk D.

A loading motor (not shown) for loading / unloading the disk D is installed at one side of the frame 1, and a roller 3 rotated by a driving force of the loading motor is mounted on the frame 1. It is installed horizontally inside. The roller (3) is made of a material capable of exerting a certain amount of friction while having elasticity, and rubber is generally used.

The roller 3 is supported by a roller bracket 3b. The roller bracket 3b has a spring 3s supported at one end thereof in a clockwise direction with reference to FIG. 2 around the hinge point 3h. Tends to rotate. Therefore, the roller 3 has a tendency to be in close contact with the lower surface of the disk (D).

On the other hand, when the disk D is drawn in by the roller 3 or more, a timing plate 4t operated by the disk D is provided on the mounting plate 4. In addition, a sliding rack 5 is installed at one lower side of the case 1.

5 g of driving gear parts are formed in one side of the said sliding rack 5, and the guide inclination part 5s is formed in the front-end | tip part (the roller bracket 3b side) of the sliding rack 5, and is formed. In addition, an interlocking protrusion 5t for interlocking with the timing plate 4t is formed at the rear end of the sliding rack 5. One side of the rear end portion of the sliding rack 5 is bent vertically upward and includes a guide piece 6 having a lifting guide slot 6s formed thereon.

In addition, a spindle motor 7 for rotating the disk D is installed at the inner center of the frame 1, and a turntable 7t on which the disk D is seated is disposed at the rotating shaft of the spindle motor 7. It is installed. In addition, the clamp plate 8h is provided inside the frame 1 so that the free end thereof can be lifted by a predetermined angle about the hinge pin 8h. A lifting guide protrusion 8t is formed at one side of the clamp plate 8, and the lifting guide protrusion 8t is guided by a lifting guide slot 6s formed in the guide piece 6 to clamp the plate. The lifting and lowering of (8) is made.

On the free end side of the clamp plate 8, a clamp 9 for holding a disk D seated on the turntable 7t is provided.

In the drawings, reference numeral 5p denotes a driving pin of the roller bracket, g denotes a loading gear that drives the sliding rack 5 in engagement with the driving gear portion 5g, and s denotes a detection sensor that detects insertion and withdrawal of a disk.

It will be described that the conventional disk drive device having such a configuration is operated.

In order to load the disk D, when the user inserts the disk D through the slot 2 'of the front plate 2, the detection sensor s detects the disk D and loads it. Drive the motor. When the loading motor is driven, the roller 3 rotates to move the disk D inward. At this time, the roller 3 is in close contact with the lower surface of the disk (D) by the elastic force of the spring (3s) to move the disk (D).

When the disk D is inserted to be positioned above the turntable 7t, the timing plate 4t is moved in the direction of arrow A in FIG. 1 by the insertion force of the disk D. As shown in FIG. When the timing plate 4t is moved for a predetermined period, the sliding rack 5 is moved while interlocking with the interlocking protrusion 5t of the sliding rack 5 to load the driving gear part 5g of the sliding rack 5. The gear g is engaged to move the sliding rack 5 by the driving force of the loading motor.

When the sliding rack 5 is moved, the interlocking pin 5p of the roller bracket 3b is guided along the guide inclined portion 5s and the roller bracket 3b is lowered about the hinge pin 3h. As a result, the lower surface of the disk D is no longer supported, and the disk D is seated on the turntable 7t.

At the same time, while the lifting guide projection 8t is guided to the lifting guide slot 6s of the guide piece 6 of the sliding rack 5, the clamp plate 8 is lowered about the hinge pin 8h, The clamp 9 clamps the disk D seated on the turntable 7t. The unloading operation is performed in the opposite manner to the loading operation.

However, the prior art as described above has the following problems.

First, in moving the disk D, there is a problem in that the disk D cannot be accurately moved to a desired position. This is because, when the disk D is moved by the roller 3, the disk D cannot be accurately guided. Of course, many configurations for guiding the disk D have been disclosed in the process of moving the disk D, but the center of the disk (D) is in the correct position without acting as a load on the disk D movement. This is because the disk D could not be guided to a position coming to the center of the circle).

That is, when the structure for guiding the disk D acts as one load during the movement of the disk D, a lot of load is applied to the roller 3 so that the roller 3 wears out and its life decreases and wears out. Problems arise when the powdered powder is buried in the signal recording surface of the disc D, and an error occurs when reading the recorded signal or recording the signal. In addition, when the roller 3 is worn, there is a problem that the transfer of the disk D is not made accurately.

In addition, the conventional configuration as described above is large in size and does not meet the recent trend of light and thin, and there is a problem that only a disk D (for example, 12cm or 8cm) of a specific size should be used. .

It is therefore an object of the present invention to solve the problems of the prior art as described above, and to provide a disk conveying apparatus which can accurately guide a disk when the disk is moved.

Another object of the present invention is to provide a light and short disk driver.

It is still another object of the present invention to provide a disk conveying apparatus that allows a disk of different diameters to be used in one disk driver.

1 is a plan view showing the configuration of a disk conveying apparatus of the disk driver according to the prior art.

Figure 2 is a side cross-sectional view showing the configuration of a disk conveying apparatus of the disk driver according to the prior art.

3 is a plan view showing the structure of a disk driver according to the present invention;

4 is a side sectional view showing the configuration of a disk driver according to the present invention;

5 is a plan view showing the configuration of a lever for guiding a disk in the disk driver according to the present invention.

Figure 6a is a plan view showing a path through which power is transmitted in the disk driver according to the present invention.

Figure 6b is a side view showing a path through which power is transmitted in the disk driver according to the present invention.

Figure 7 is a plan view showing another example of the lever connecting structure constituting the disk driver according to the present invention.

8 is a plan view showing still another example of the lever connecting structure constituting the disk driver according to the present invention;

9 to 14 is a view showing the operating state sequentially showing that the disk drive is a 12cm disc in the disk drive according to the present invention.

15 to 18 is a view showing an operation sequentially showing that the 8cm disk is transported in the disk driver according to the present invention.

Explanation of symbols on the main parts of the drawings

10: main chassis 20: upper chassis

21,21 ': Guide surface 23,23': Guide slot

24: Vertical slot 24p: Single insertion prevention part

26: sensor rod slot 28: inclined surface

29: interference avoiding protrusions 30: drive motor

31: rotating shaft 32: drive pulley

33: belt 35: driven pulley

36: driving worm 40: loading worm wheel

41: connecting shaft 43: driven worm wheel

44: first loading gear 45: second loading gear

50: roller bracket 51: roller shaft

52: roller gear 53: roller

60, 62: 1st, 2nd balance lever 61, 63: 1st, 2nd balance rod

65,67: 1st, 2nd holder lever 66,68: 1st, 2nd holder lever

70: clapping wheel 75: drive plate

75s: moving slot 76,77: first and second guide slots

75r: rack gear 80: sensor lever

80h: hinge 81: guide protrusion

83: sensor rod 85: connecting lever

85s: return spring 90: first elevating plate

91: drive hole 92: cam portion

99: interlocking lever

According to a feature of the present invention for achieving the object as described above, the present invention guides the disk conveying means for transporting the disk by the power of the drive source, and guides the disk drawn into the device by the conveying means to accurately insert the disk A balance guide part, a holder guide part interlocked with the balance guide part, guided by the balance guide part and guided at both ends of the disc until the disc transfer is completed by receiving the disc moved by the transfer means, and the holder It is linked to the guide portion, and guides the disk by the input of the disk, and comprises a sensor guide portion for connecting the power for clamping the disk, wherein the balance guide portion and the holder guide portion is the sensor guide portion clamping of the disk Fastening each other at the moment of connecting the power of driving source It becomes a state and it does not flow.

The balance guide portion is provided with an interlocking hole for regulating the operation of the holder guide portion, one side of the holder guide portion is located in the interlocking hole to control the operation.

According to the disk driver according to the present invention having such a configuration, there is an advantage that the load of the disk is lessened and the disk is inserted correctly.

Hereinafter, preferred embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

As shown in the figure, various parts are installed between the main chassis 10 and the upper chassis 20 and therebetween.

First, the main chassis 10 is provided with a pickup unit (not shown) necessary for recording and reproduction on the disc D. FIG. Since the configuration of the pickup unit is irrelevant to the gist of the present invention, its detailed configuration will be omitted. In addition, a turntable on which the disk D is mounted and rotated is installed at the main chassis 10 side. The turntable is generally rotated by a spindle motor (not shown).

The upper chassis 20 is provided with components for moving and clamping the disk D, as shown in FIG. 3. First, one side of the upper chassis 20 is provided with a drive motor 30 for providing power for the transfer and clamping of the disk (D). As shown in FIGS. 6A and 6B, the driving force of the drive motor 30 is transmitted to the driven pulley 35 through the belt 33 wound around the drive pulley 32 installed on the rotation shaft 31. .

The driven pulley 35 is coaxially installed with the driven pulley 35. In addition, the drive worm 36 transmits power at the same time to the path for the transfer of the disk (D) and the path for clamping the disk (D). That is, the driving worm 36 is engaged with the loading worm wheel 40 and the clamping worm wheel 70 together.

The loading worm wheel 40 is engaged with the driving worm 36 in a state in which the connecting worm wheel 41 is installed, and a driven worm wheel 43 is installed at the opposite end of the connecting shaft 41. The first loading gear 44 is engaged with the driven worm wheel 43, and the second loading gear 45 is engaged with the first loading gear 44 in this order. On the other hand, the roller gear 52 is engaged with the loading gear 45. The roller gear 52 is installed coaxially with the roller shaft 51 to be described below to rotate the roller shaft 51.

On the other hand, the roller bracket 50 is installed on the lower end of the upper chassis 20. The roller bracket 50 is rotatably installed around the hinge point of both ends, and is always elastically supported by a spring so that the roller 53 to be described below moves toward the bottom surface of the upper chassis 20.

The roller bracket (50) is provided with a roller shaft (51) extending in the lateral direction, and a roller (53) is installed therein. The roller 53 is in close contact with the lower surface of the disk D to transfer the disk D with the frictional force thereof. In general, the material of the roller 53 is rubber.

Now, a configuration for guiding the movement of the disk D will be described.

First, the upper chassis 20 is provided with first and second balance rods 61 and 63 and first and second holder rods 66 and 68 for guiding the side surfaces of the disc D.

The first and second balance rods 61 and 63 are respectively installed on the first and second balance levers 60 and 62 installed on the upper surface of the upper chassis 20, respectively, to the lower portion of the upper chassis 20. It is extended. The first and second balance bars 61 and 63 are guided along the guide surfaces 21 and 21 ′ formed at the tip of the upper chassis 20. Here, the first and second balance levers 60 and 62 are installed on the upper surface of the upper chassis 20 so as to rotate around the hinges 60h and 62h, respectively.

The first and second balance levers 60 and 62 are perforated with interlocking holes 60a and 62a, respectively. The interlocking holes 60a and 62a serve to control the operation of the first and second holder levers 65 and 67 to be described below.

The first and second holder rods 66 and 68 are positioned on the first and second holder levers 65 and 67 rotatably installed around the hinges 65h and 67h on the upper surface of the upper chassis 20. do. That is, the first and second holder rods 66 and 68 are installed at the front ends of the first and second holder levers 65 and 67 and formed in the upper chassis 20. 23 ') is installed to protrude to the lower portion of the upper chassis 20.

The first and second holder levers 65 and 67 are formed with interlocking protrusions 65t and 67t positioned in the interlocking holes 60a and 62a, respectively. Interference avoiding protrusions 65r and 67r are provided to drive the first and second holder levers 65 and 67 so that the first and second holder rods 66 and 68 are separated from the side surfaces of the disc D.

Here, the interlocking holes (60a, 62a) is to act as the holder lever (65,67) is constrained to the balance lever (60,62) if necessary so that they are fastened without flow to each other.

Another example of the balance levers 60 and 62 and the holder levers 65 and 67 in which such interlocking holes 60a and 62a are formed is shown in FIG. According to this, the interlocking holes 60a and 62a of Fig. 7 are relatively close in shape to the boomerang shape. 8 shows another example of interlocking holes 60a and 62a, which have a configuration much closer to that of FIG.

Meanwhile, first and second connection levers 69 and 69 'are connected to the first and second balance levers 60 and 62, respectively, and the first and second connection levers 69 and 69' are connected to each other. Are connected to each other by a connecting pin 69p. The connecting pin 69p is guided and restrained along the vertical slot 24 formed in the upper chassis 20. Here, at one end of the vertical slot 24 (the position where the connecting pin 69p is in the state where the disk D is not inserted), as shown in the detailed view of FIG. 24p) is formed. Such a piece insertion prevention portion 24p is formed by the disk D on the balance rods 61 and 63 of the balance levers 60 and 62 when the user does not correctly insert the disk D into the center of the driver. When the force applied is not balanced, the connecting pins 69p are fastened so that the operation of the balance levers 60 and 62 does not occur.

The first and second connecting levers 69 and 69 'are connected to the first and second holder levers 65 and 67 by return springs 65s and 67s, respectively. As a result, the first and second balance levers 60 and 62, the first and second holder levers 65 and 67, and the first and second connection levers 69 and 69 ′ are linked to each other. The return springs 65s and 67s serve to return the levers to the initial position when the disk D is removed.

Meanwhile, a configuration for transmitting power in a configuration for clamping the disk D on the turntable 14 will be described with reference to FIGS. 3 and 6A. A gear train 72 is provided for engaging with the clamping worm wheel 70 to transmit power. The drive gear 73 at the end of the gear train 72 is provided to selectively engage the rack gear portion 75r of the drive plate 75 provided on the upper chassis 20.

The driving plate 75 includes two moving slots 75s, and the guide pins 20p installed in the upper chassis 20 are positioned in the moving slots 75s so that the moving slots 75s are in the direction of the moving slots 75s. It is advanced back and forth. In addition, the driving plate 75 is formed with first and second guide slots 76 and 77 for guiding the sensor lever 80 to be described below according to the type of the disc D. The first guide slot 76 guides the sensor lever 80 in the case of a 12 mm disc D, and the second guide slot 77 guides the sensor lever 80 in the case of an 8 m disc D. Guide).

Here, the sensor lever 80 will be described. The sensor lever 80 is pushed by the disk D drawn into the disk driver by the roller 53, and moves the driving plate 75 so that the rack portion 75r of the driving plate 75 is moved. ) And the rigid gear 73 to be engaged, so that the power for clamping the disk (D) is transmitted to the drive plate (75).

The sensor lever 80 serving as this is installed on the upper surface of the upper chassis 20, and is rotatably installed around the hinge 80h at one end of the connection lever 85 to be described below. A guide protrusion 81 is formed at one end of the sensor lever 80 and is selectively positioned in the first and second guide slots 76 and 77 of the driving plate 75. The other end of the sensor lever 80 is provided with a sensor rod 83 which is in contact with the distal end side of the disk D introduced therein and is pushed as the disk D moves. The sensor rod 83 is located in the sensor rod slot 26 formed in the upper chassis 20 and extends below the upper chassis 20.

On the other hand, the sensor lever 80 is connected to the second holder lever 67 by a connection lever 85. That is, the connecting lever 85 and the sensor lever 80 are connected to each other by the hinge 80h, and are also connected by the return spring 85s. In addition, the connecting lever 85 has a moving slot 85t in which the guide pin 20p fixed to the upper chassis 20 is located, and thus the moving slot on the upper surface of the upper chassis 20. It is movable by a length of 85t.

The movement of the 12cm disc D in the above-described apparatus of the present invention will be described with reference to FIGS. 9 to 13. When the user inserts the disk D into the disk driver, as shown in FIG. 9, the first and second balance rods 61 and 63 are first touched. At this time, if the disk D is not inserted into the front center of the disk driver and is in a single insertion state, the connecting pin 69p is caught by the single insertion prevention portion 24p of the vertical slot 24, The first and second balance rods 61 and 63 are not operated.

Once the disk D is inserted, as shown in FIG. 10, the first and second balance bars 61 and 63 move along the guide surfaces 21 and 21 ′. When the disk D comes into contact with the roller 53 and the sensor D (not shown) detects the disk D, the driving motor 30 is operated. The driving force is transmitted by the operation of the driving motor 30, the roller shaft 52 is rotated while the roller gear 52 is rotated by the loading worm wheel 40 so that the roller 53 is rotated by the disk ( Start moving D).

As the disk D is moved by the roller 53, the first and second balance bars 61 and 63 are supported on the side surface of the disk D, respectively, and the moving force of the disk D is maintained. Will be moved by.

By the movement as described above, the disk D is inserted in half with respect to the first and second balance rods 61 and 63 (that is, the first and second balance rods 61 and 63). Farthest away), when the disk D continues to move, the first and second holder rods 66 and 68 are positioned closest to each other in the guide slots 23 and 23 ', as shown in FIG. After being far apart, the first and second holder levers 62 and 65 and the first and second balance levers 60 and 62 are moved inwards as shown in FIG. 12 and moved as shown in FIG. 13. Guiding of the disk D begins.

At this time, of course, the sensor lever 80 connected to the second holder lever 67 by the connecting lever 85 is also moved along the support slot 26, and the guide protrusion 81 is also a type of the disk D. As a result, it is located in either one of the first or second guide slots (76, 77).

If the disk D continues to the inside, the front end pushes the sensor lever 80, and the sensor lever 80 is pushed so that the sensor lever 80 is driven by the driving plate 75. ) Slightly as shown in FIG. When the driving plate 75 is pushed as described above, the rack gear 75r of the driving plate 75 and the driving gear 73 are engaged with each other, and the power of the driving motor 30 is transmitted to the driving plate 75. .

As described above, when the sensor lever 80 pushes the driving plate 75, the balance levers 60 and 62 and the holder levers 65 and 67 should not be moved. ) Will be less loaded. To this end, in the present invention, interlocking holes 60a and 62a are formed in the balance levers 60 and 62, and interlocking protrusions 65t and 67t are formed in the holder levers 65 and 67. Here, another example of the shape of the interlocking holes 60a and 62a is shown in FIGS. 7 and 8.

Subsequently, the drive plate 75 starts to move in the direction of the arrow, and the configuration for clamping the disc starts to operate by the movement of the drive plate 75. Clamping is not a subject matter of the present invention and will not be described in detail.

On the other hand, the case where the 8cm disk (D) is used is shown in Figure 15 to 18, where the disk (D) is inserted into the driver more than half of the both ends thereof, as shown in Figure 16, the first And second balance bars 61 and 63.

Then, as the disk D is advanced by the roller 52, the first and second artillery rods 66 and 68 guide the disk D, as shown in FIG. 17, and the holder rod. Separating (66, 68) to the side of the disk (D) is the cam portion 104, 104 'formed on the clamping drive plate 100 is the interference avoiding projections (65r, 67r) of the holder lever (65, 67) By interworking with

In addition, the guide protrusion 81 of the support lever 80 is located in the second guide slot 77 in the case of 8cm disk (D) is guided.

The disk conveying apparatus according to the present invention having such a configuration can convey both 12 cm and 8 cm disks, and the disks are guided by a plurality of levers interlocked with each other. In particular, the balance lever and the holder lever that guide the disk are fixed to the disk during the power connection for clamping operation of the disk, so that the load is less applied to the roller for conveying the disk. This has the effect of getting better.

Claims (2)

A disk conveying means for conveying the disk by the power of the driving source, A balance guide part for guiding the disc drawn into the apparatus by the conveying means so that the disc is correctly inserted; A holder guide part which is interlocked with the balance guide part and guided by the balance guide part to guide both ends of the disc until the disk transfer is completed by receiving the disk moved by the conveying means; It is linked with the holder guide portion, and comprises a sensor guide portion for guiding the disk by the in-input of the disk, connecting the power for clamping the disk, The balance guide portion and the holder guide portion is a configuration for clamping the disk disc drive apparatus of the disc driver, characterized in that the fastening state is not connected to each other at the moment of connecting the power of the drive source. The disk conveying apparatus of claim 1, wherein the balance guide portion is provided with an interlocking hole for regulating the operation of the holder guide portion, and one side of the holder guide portion is positioned in the interlocking hole to control its operation. .