KR900006709Y1 - L. p recorder and c.d's players of front loading type - Google Patents

Abstract

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Description

Front loading recordable compact disc player

1 is a schematic perspective view of a combined player according to an embodiment of the present invention.

Article 2 is a perspective view showing the state in which the disk storage tray is advanced with the bonnet at the top removed.

3 is a cross-sectional view taken along line 1 of FIG.

4 is an enlarged view of a portion A of FIG. 3 showing a state where the rack of the slider is engaged with the rack of the two gears and the tray.

FIG. 5 is an enlarged view of portion B of FIG. 3 showing a record clamper. FIG.

FIG. 6 is an enlarged view of portion C of FIG. 3 showing a compact disc clamper. FIG.

7 is an exploded perspective view showing a disc holder assembly and a drive mechanism thereof partially omitted.

8 (a) is a plan view of a tray.

Fig. 8 (b) is a cross-sectional view of the spiral of Fig. 8 (a).

* Explanation of symbols for main parts of the drawings

2: state 4 4: disc holder assembly

5: disc storage tray 19: lower disc holder

20: upper disc holder 21: slider

22 carrier 54 pin

55: horizontal groove 56: A-shaped groove

57: vertical groove 58: pin

59, 60: gear 61, 62: rack

The present invention relates to a front loading type record compact disc player.

In order to reproduce information (e.g. sound signals, digital signals, etc.) recorded on a record or compact disc in a home or office, a record player and a compact disc player have to be installed at the same time. There was a problem to purchase a player at the same time.

In order to solve this problem, a combined player has been developed in which a record player and an optical compact disc player are constituted by one device. In the conventional combined player, in order to reduce the size, a central axis into which the record disc and the compact disc are fitted is installed. The disk is recessed downward to form a space, and a compact disk chassis is provided in the space to cover the upper portion with a transparent dust cover.

However, this type of combined player takes up a lot of space because it uses a dust cover, and should always be on top when constructing a component system with a tuner, amplifier, etc., and the disc clamper is fixed to the dust cover, The drawback is that it is much affected by vibration.

In addition, since the axis of rotation of the record and compact discs is arranged up and down coaxially, and the compact disc mechanism is installed in the concave space of the disc for the record disc, the strength of the disc is weakened, and the weight is increased to maintain the strength of the disc. Since the driving power line and the compact disc retrieval information retrieval lead out of the compact disc mechanism through the hollow central axis for the disc, noise is generated by mutual induction.

In addition, a front-loading record disc player was also developed to increase the degree of freedom of installation, but since all the mechanisms for the record disc are installed in the tray for moving back and forth, it is difficult to support firmly and has a performance problem. The loading player has not been developed yet.

It is an object of the present invention to provide a recordable compact disc combined player in which only a record disc or a compact disc is accommodated in the tray and all other devices are fixed to the main chassis in order to solve the above drawback.

According to one embodiment of the present invention, a main chassis, a disc holder assembly, a disc for a disc, a disc drive motor, a tone arm for a record disc, a tone arm drive motor, a compact disc mechanism, an optical pickup, a disc storage tray, a tray drive motor, In a front-loading record compact disc combined player including a control circuit, the disc holder assembly is composed of an upper and lower disc holder, a disc storage tray, a slider, and a carrier, and the carrier has two curved grooves and a power of a motor that goes higher backwards. The rack is formed on the bottom of the lower disk holder, which is engaged with the rotating gear.The left plate of the lower disk holder fixed to the main chassis has two L-shaped grooves and a middle vertical groove, and a pin is installed in the middle of the slider. Inserted into the longitudinal groove of the lower disc holder, two numbers before and after the pin Grooves are formed, the lower part of the slider has a rack projecting to the right, and two pins are provided on the left side plate of the upper disc holder, and the curved groove of the carrier passes through the horizontal groove of the slider and the 'A' groove of the lower disc holder, respectively. The bottom plate is provided with two gears, one gear protrudes through the hole in the left plate to engage the rack of the slider, and the other gear is engaged with the rack formed on the bottom of the tray. A record compact disc player is provided.

Here, the carrier having a rack on the bottom and two curved grooves are further disposed on the right side, and two 'A' grooves are further formed on the right side plate of the lower disc holder, and two more pins are installed on the right side plate of the upper disc holder. And it may be fitted to the bezel groove of the lower disk holder and the curved groove of the carrier, respectively, so that the forward and backward linear movement of the tray can be made more smoothly.

In addition, the pressing plate is connected to the record disc clamp side by a bearing and the record clamper, which presses the record disc during operation, is fixed to the upper disc holder, and the annular magnet and compact connected between the lower plate, the upper plate and the upper and lower plates. The disk clamp shaft may be assembled to the upper disk holder, and the compact disk clamper may be installed in the upper disk holder when the compact disk is pressed during operation while moving a certain distance up and down.

Hereinafter, the present invention will be described with reference to the accompanying drawings in which one embodiment of the present invention is shown.

1 and 2 is a perspective view of the combined player according to an embodiment of the present invention is shown by separating the upper bonnet (1). The player's case consists of a bonnet (1), a main chassis (2), a faceplate (3), and a disc holder assembly (4). The front panel 3 has a door 9, a power switch 10, a plurality of switch buttons S1S9 for selecting various functions of the player, an opening / closing switch 8 for adjusting the forward and backward movement of the tray 5, a display ( 11) The phone jack 12 is provided.

The tangential tonearm 6 for the record disc and its mechanism are fixed to the main chassis 2.

3 to 7 show the construction of the dual player according to one embodiment of the present invention, in particular the disc holder assembly, and FIG. 8 shows the disc receiving tray 5.

The disk hold assembly 4 includes a lower disk holder 19, a disk receiving tray 5, a slider 21, a carrier 22, and an upper portion as shown in detail in FIGS. 3, 4 and 7. It is made of a disk holder 20.

The lower disk holder 19 is fixed to the main chassis 2, and the two grooves 56 are formed on the side wall thereof, and a new groove 57 is formed in the middle thereof.

The carrier 22 is formed with two curved grooves 63, which are higher in the rearward direction and have a larger inclination, and at the bottom thereof, a rack is engaged with the gear 74 which is rotated by the motor 13.

The pin 58 is provided in the middle of the slider 21, and the long horizontal cotton 55 is formed before and behind the pin 58. As shown in FIG. In the assembled state, this pin 58 fits into the new groove 57 of the lower disc holder 19. Moreover, the rack 61 protrudes to the right below the slider 21. The two pins 54 provided on the side plate of the upper disk holder 20 pass through the horizontal groove 55 of the slider 21 and the bevel groove 56 of the lower disk holder 19, respectively, and the curved groove of the carrier 22 is provided. Fitted with (63).

In the lower part of the upper disk holder 19, two gears 59 and 60 are installed on the bottom plate, and the gear 59 protrudes through the hole of the side plate to engage with the rack 61 of the slider 21, and the gear ( 60 is engaged with the rack 62 formed in the bottom surface of the tray 5. As shown in FIG. 8, the upper surface of the tray 5 has circular recesses formed on one side so that the record disk can be accommodated, and the other side is formed with the circular recesses connected to each other so that the compact disk can be accommodated. Are each concentric with the recesses.

In addition, as shown in detail in FIGS. 3 and 5, the upper disc holder 20 has a record disc clamp axis 29 at a position coaxial with the central axis 66 for the record disc 34 when the record disc recorded information is reproduced. ) Is fixed, and the record clamper 25 which consists of this shaft 29, the bearing 28, and the pressing plate 27 connected to the shaft 29 by the bearing 28 is provided. Similarly, the compact disc clamper 26 is installed to be coaxial with the rotating shaft for the compact disc 35 when the compact disc recorded information is reproduced. The clamper 26 is provided with the adhesive between the upper plate 32 and the lower plate 30, and the like. It consists of the annular magnet 31 and the compact disc clamp axis | shaft 33 connected by this, and it can move a predetermined distance up and down with respect to the upper disk holder 20 (3rd, 6 degree | times). When the above-mentioned clampers 25 and 26 reproduce the information recorded on the record disk 34 and the compact disk 35, respectively, the clampers 25 and 26 are pressed, and the record disk clamper 25 is compacted by the weight of the pressing plate 27. The disk clamper 26 exerts its function by the magnetic force of the magnet 31. Reference numerals 16, 17, and 18 in FIG. 3 indicate a turntable for a disc, a disc drive motor, and a compact disc mechanism, respectively. An upper reinforcing plate 23 and a rear reinforcing plate 24 may be further attached to the upper surface of the upper disk holder 20 to increase strength and rigidity.

In the figure, a pair of carriers 22 are installed and the lower groove 56 and the pins 57 of the lower disk holder are formed on both left and right plates, but only one carrier 22 is installed and the lower disk holder ( You can also remove one side plate. However, as shown in the drawing, it is of course advantageous in terms of strength and certainty of the movement of the tray back and forth.

Similarly, the slider 21 is also provided in a symmetrical shape, and correspondingly, a pair of gears 59 and 60 are installed in the upper disk holder 20 to further form a rack on the bottom of the tray 5. The back and forth movement of the tray 5 can also be made smoother.

In addition to the devices described above, a known power source, a microprocessor, an optical pickup for a compact disc, an amplifier, a motor control circuit, a disc discriminator, and a control circuit, which are not described in detail and not shown in the drawings, are included in the combined player of the present invention.

Hereinafter, the operation of the combined player according to the present invention will be described.

When the power switch 10 is "on" and the door open / close switch 8 is pressed, the tray drive motor 13 is rotated while the condition that the tangential tonearm 6 is in the initial position is satisfied. . The rotational force of the motor 13 is transmitted to the shaft 15 via the pulley 50 and the belt 53. As a result, the drive gears 74 provided at both ends of the shaft 15 rotate, and the left and right carriers 22 having a rack formed thereon move forward. The pin 54 of the upper disk holder 20 is inserted into the curved groove 63 of the carrier 22 through the horizontal groove 55 of the slider 21 and the A-shaped groove 56 of the lower disk holder 19. When the carrier 22 is advanced, the slider 21, the tray 5, and the upper disk holder 20 are vertically raised.

At this time, the pins 54 of the upper disk holder 20 move along the vertical portion of the groove 56 of the lower disk holder 19, and the pins 58 of the slider 21 move on the lower disk holder 19. The slider 21 and the upper disk holder 20 do not move in the front-rear direction because they move along the longitudinal grooves 57. When the pin 54 reaches the uppermost part (ie, the rearmost part) of the curved groove 63, the pin 54 reaches the uppermost part of the vertical part of the g-shaped groove 56, and at this time, the pin 58 is also provided at the top of the vertical groove 57. Will be reached. When this position is reached, the door 9 may be opened by releasing the lock latch of the door 19 by using the projection 65 on the front of the slider 21. After that, when the carrier 22 continues to move forward as the motor 13 rotates, the upper disc holder 20 continues to move forward, but the slider 21 moves forward because the pin 58 is constrained by the longitudinal grooves 57. I never do that. When the upper disc holder 20 is advanced, the gear 59 and the gear 60 engaged with the rack 61 of the fixed slider 21 rotate, and the rack 62 with the gear 60 formed on the bottom of the tray 5. ), The tray 5 is advanced. Since the gear 59 and the gear 60 have a large medium speed ratio, the tray 5 may move a lot even if the upper disk holder 20 moves only a little, and the ratio may be adjusted.

In this manner, when the record disk 34 or the compact disk 35 is placed on the tray 5 in the state where the tray 5 is fully advanced (FIG. 2), the tray driving motor 13 is pushed again by pressing the on / off switch 8 again. The reverse rotation causes the movement to reverse. Thereafter, the player is operated in accordance with the operation of the switch button S1? S9 while pressing the record disk 34 or the compact disk 35 in which the clampers 25, 26 shown in Figs. 5 and 6 are accommodated.

Claims (4)

Main chassis (2), disc holder assembly (4), disc for record disc (16), disc drive motor (17), tone arm for record disc (6), tone arm drive motor, compact disc mechanism (18), optical pickup, In the front loading type record compact disc combined play in which the disc accommodating tray 5, the tray driving motor 13, and the control circuit are included, the disc holder assembly 4 includes the upper and lower disc holders 20 and 19 and the disc accommodating tray. (5), a slider 21, and a carrier 22, and the carrier 22 has two curved grooves 63 which increase as they go backward, a gear 74 which rotates under the power of the motor 13, and The interlocking bottom of the rack is formed, the side plate of the lower disk holder 19 fixed to the main chassis (2) is formed with two L-shaped groove 56 and the middle longitudinal groove 47, the slider 21 ), A pin 58 is installed in the middle of the pin and is inserted into the longitudinal groove 57 of the lower disc holder 19. Two horizontal grooves 55 are formed at the front and rear of the pin 58, and the rack 61 is formed to protrude to the right under the slider 21, and the side plate of the upper disk holder 20 Two pins 54 are installed to fit into the curved groove 63 of the carrier 22 through the horizontal groove 55 of the slider 21 and the G-shaped groove 56 of the lower disk holder 19, respectively. Two gears 59 and 60 are installed in the shaft, and the gears 59 protrude through the holes of the side plates to engage the rack 61 of the slider 21, and the gears 60 are located on the bottom surface of the tray 5. Front loading-type record compact disc combined player, characterized in that it is engaged with the formed rack (62). 2. The carrier 22 according to claim 1, further comprising a carrier 22 having a rack at the bottom and two curved grooves 63 formed on the right side, and two grooves 56 on the right side plate of the lower disc holder 19. And two pins 54 are further provided on the right side plate of the upper disc holder 20, and the grooves 56 of the lower disc holder 19 and the curved grooves 63 of the carrier 22 are formed. Front loading type record compact disc combined player, characterized in that each inserted. 2. The record disk (25) according to claim 1, wherein the pressing plate (27) is connected to the record disk clamp shaft (27) by a bearing (25), and a record clamper (25) is pressed against the upper disk holder (20) which presses the record disk during operation. It is fixed and consists of an annular magnet 31 and a compact disc clamp shaft 33 connected between the lower plate 30, the upper plate 32, and the upper and lower plates 30 and 32, and to the upper disc holder 20. A player with a front-loading record compact disc, characterized in that the compact disc is installed during operation while being assembled and moving up and down a certain distance. The upper surface of the tray 5 has a circular recess formed on one side thereof to accommodate the record disk, and the other side has a circular recess formed on the compact surface to accommodate the record disk. And a concentric hole smaller than the concave portions so as not to fall down.