KR19980017828A - Disc loading device for compact disc player - Google Patents

Abstract

The present invention relates to a disc loading device of a compact disc player, and more particularly, to a compact disc player for a vehicle manufactured mainly for vibration and shock, while simultaneously inducing and seating a disc entering an inlet onto a turntable. A disc loading apparatus of a compact disc player capable of preventing damage to a disc during unloading, comprising: a main chassis 100 to which a loading motor 102 is fixed; Rotating plate 110 is fixed to one side and coupled to the main chassis 100 to pivot the other side; A roller 170 fixed to the rotational end of the rotation plate and rotating by receiving the power of the loading motor 102 by the gear group 160 fixed to the rotation plate; It is arranged in a vertical shape on the side end of the main chassis 100, the operating piece 128 is formed on the upper end, and pivoting the rotating plate 110 by selectively moving back and forth in conjunction with the loading motor 102 A moving plate 120; The rear end is rotatably coupled to the main chassis 100, and has a chucking holder 152 located on the top of the turntable 142 at the front end, so that the chucking holder 152 always has a downward force to the base plate ( A chucking plate 150 integrally formed with a spring 156 on one side and integrally formed with a chucking piece 158 that interferes with the operation piece 128 on one side; A base plate 130 formed at both sides of the moving plate 120 to guide pins 132 fixed to the main chassis to guide the moving back and forth of the moving plate 120; The disk loading device is elastically supported with respect to the base plate 130 by the elastic support means, and made of an elastic plate 140 to rotatably support the turntable.

Description

Disc loading device for compact disc player

The present invention relates to a disc loading device of a compact disc player, and more particularly, to a compact disc player for a vehicle manufactured mainly for vibration and shock, while simultaneously inducing and seating a disc entering an inlet onto a turntable. The present invention relates to a disc loading device of a compact disc player that can prevent damage to a disc during unloading.

In general, a compact disc player mounts a disc on which a sound or video signal is recorded on a turntable, and rotates the disc using a spindle motor provided on the bottom of the turntable to rotate the turntable. A compact disc player is a playback device that allows a user to listen to or watch audio and video by reproducing a signal recorded on a disc by an optical pickup device that linearly reciprocates along a predetermined path in a main chassis. Because it reads in a contactless manner, very good sound can be obtained. In recent years, compact disc players for automobiles have been developed that can be installed in automobiles and listen to high-quality vehicles.

The compact disc player applied to a car must be able to hold on to a moving car and to read signals on the disc smoothly, i.e. a car must not only have relatively flat roads such as highways, but also unpaved roads or road conditions. In some cases, driving on uneven roads results in very high vibrations and shocks. Therefore, the above impulses or shocks are transmitted to the compact disc player which requires a very high degree, so that the reproduction performance may be deteriorated or the failure may be severe.

Therefore, conventional compact disc players applied to automobiles have a floating plate spring-loaded with respect to the main chassis, and various devices such as a turntable optical pickup device and corresponding driving means can be installed on the floating plate to adapt to vibration and shock. It is supposed to be.

Referring to FIGS. 1 to 3, a configuration of a conventional compact disc player for a vehicle is provided. First, a loading motor 2 fixed to the main chassis 1 to load a disc is provided. One side is rotatably coupled to the hinge (4) to the main chassis (1) and the other side is provided with an operating pin (7) inserted into the roller groove (6) of the moving plate (5) driven by the loading motor (2) Rotating plate 3 is provided. The pivoting plate 3 is provided on both sides of the main chassis 1 and at least one of the pivoting plates 3 is configured to interlock with the moving plate 5.

The moving plate 5 is selectively supplied with power from the loading motor 2 by a switching device such as a solenoid belt, for example, and the rotating plate 3 moves the operating pin 7 in response to the movement of the moving plate 5. And by the interference of the roller groove (6) to achieve a pivoting movement relative to the hinge (4).

One of the rotating plate 3 is rotatably fixed to the gear group 8 to receive the power from the loading motor 2 to decelerate to a constant speed, the end of the gear group is rotated at both ends It is connected to the roller 9 which is rotatably fixed to the rotational end of the plate 3 and is configured to rotate the roller 9 by the rotation of the loading motor 2. The roller 9 is configured in the form of a django which gradually decreases in diameter from both ends to the center in order to guide the disk D to the center.

In addition, the upper portion of the main chassis 1 is provided with a floating plate 11 which is supported by a spring 10 on the main chassis 1. The spindle motor 13 for rotating the turntable 12 is fixed to the center lower portion of the floating plate 11, and the feeding motor 15 is fixed to the side end thereof, and is floated by the feeding motor 15. An optical pickup device 14 which moves along the guide groove of the plate 11 and reads out a signal from the disk D seated on the turntable is provided.

The optical pick-up apparatus includes an objective lens on top of which irradiates a laser generated from a pickup to a disk and simultaneously focuses laser light reflected from the disk to a required focus.

In addition, a top plate 16 is provided at an upper portion of the main chassis 1, and a guide plate 17 is fixed to the bottom of the top plate 16 to guide the entry and discharge of the disc when the disc is loaded.

The floating plate 11 has a fixing pin 11a interfering with the moving plate 5 to be fixed or released relative to the main chassis 1, and is released by the spring 10 to release the main chassis 1. It is configured to maintain the suspended form for). In addition, a plurality of damping rubber 19 is installed on the floating plate 11, the main chassis 1 is provided with a damping protrusion 20 coupled with each of the damping rubber 19, the spring 10 in the suspended state Shock absorber by damping rubber and damping rubber 19 are added so that the floating plate 11 can retain the required resistance against vibration impact of the vehicle body.

In addition, as shown in FIG. 2, a rear end of the main chassis is provided with a chucking plate 21 which rotates in accordance with the movement of the moving plate 5 and supports the disk seated on the turntable 12. The chucking plate 21 has a hinge 22 rotatably coupled to the main chassis 1 at its rear end, and a chucking pin 23 interlocked with the moving plate 5 is formed at the side end thereof. The chucking pin 23 is mounted on the inclined guide portion 24 formed at the rear end of the moving plate 6, and the chucking plate 21 is supported by the spring 25 on the main chassis 1 to always keep downward force. The chucking plate 21 is provided to provide a rotational force about the hinge 22 as the moving plate 5 moves.

On the other hand, the moving plate 5 is arranged in a vertical form on one side of the main chassis 1 as shown in FIG. 3 and configured to selectively couple with the gear group 26 that receives the power of the loading motor 2. The last gear of the gear group 26 (hereinafter referred to as the switching gear 27) is fixed on the rotary lever 29 that is rotationally driven by the solenoid (28) is in accordance with the operation of the solenoid (28) It is to be moved by receiving power from the loading motor (2) to move forward with respect to the main chassis (1) when loading the disk, and to move backwards when unloading and to support the roller (9), respectively ( 3) and the chucking plate 21.

The side of the moving plate 5 is provided with a plurality of guide pins 5a guided to the guide groove 1a on the main chassis 1 and fixed to restrain or release the fixing pins 11a of the floating plate 11. The groove 5b is formed.

In addition, between the main chassis 1 and the moving plate 5, one side is rotatably coupled to the main chassis 1, the pin 30a, the other side is inserted into the cam groove 5c of the moving plate 5 to rotate An actuating protrusion 30b is provided with a fixed plate 30. The fixing plate 30 has a fixing groove 30c formed at the center thereof to release the fixing pin of one of the fixing pins 11a of the floating plate 11.

Looking at the operation of a conventional compact disc player having such a configuration, when the disc is inserted, the disc entry detection means (not shown) detects this to drive the loading motor 2, and according to the driving of the loading motor 2 The roller 9 is rotated. Therefore, the disk located between the roller 9 and the guide plate 17 is slipped with respect to the guide plate 17 by the pressing force and rotational force of the roller 9 and is inserted into the turntable 12 to form a loading. .

Subsequently, when the disk D enters the predetermined depth, the solenoid 28 operates to rotate the switching lever 29 so that the switching gear 27 meshes with the rack gear 30 of the moving plate 5. The moving plate 5 starts moving forward.

When the moving plate 5 starts moving forward, the chucking plate 21 interlocked with the moving plate 5 descends to perform a chucking operation.

Further, the advancement of the moving plate 5 causes the rotation of the rotating plate 3 supporting the roller 9 so that the roller 9 is spaced apart from the bottom of the disk D.

At the same time, the forward of the moving plate 5 rotates the fixed plate 30 and releases the fixing pin 11a of the floating plate 11 which is being fixed since the fixing groove 5b is separated from the operating pin 11a. Thus, the floating plate 11 is suspended by the spring 10 and the damping rubber 19 to complete the disk loading.

When the loading is completed as described above, the feeding motor 15 is driven to move the optical pickup device 14 linearly toward or away from the turntable 12, and at the same time, irradiate the laser to the bottom of the disk and reflect the reflected light. Video or audio signals are reproduced by the wavelength.

In addition, during unloading, the loading motor 2 is driven in the opposite direction so that the moving plate 5 moves in the reverse direction (backward) and returns the respective operating members to their original positions. That is, by restraining the fixing pin 11a so that the floating plate 11 does not flow with respect to the main chassis 1, the chucking plate 21 is raised to release the chucking state, and at the same time, the rotating plate 3 is raised. The roller 9 is brought into contact with the bottom surface of the disk so that the disk moves forward to perform unloading.

However, in the compact disc player having such a configuration, the disc loading device has a problem in that the loading operation is unstable as well as damage to the disc.

In detail, that is, when the disk enters, it must be seated on the turntable exactly, which requires the disk to enter the center part correctly. Conventionally, for this purpose, the roller 9 is configured in a django shape so that two points of the peripheral edge of the disc come into contact with the roller 9, and the disc is guided to the center part by the rotation of the roller 9.

Therefore, at the time when the entry of the disc is completed, a part of the rear end of the disc is located between the lorler 9 and the guide plate 17, so as shown in FIG. Since only the end of the disk is deflected due to its own weight as shown in FIG. 2, the center of the disk D is not accurately seated on the turntable, and thus the loading operation becomes unstable. This situation was accompanied by the problem that the recording surface requiring a very high degree of damage interferes with the turntable and other peripheral devices.

In particular, the above problem is that the disk is moved away from the turntable 12 due to the rise of the roller 9 during unloading, so that the disk may be moved by the roller in a state in which the disk is not completely removed. The interference between the disks causes scratches and the like on the recording surface of the disk, thereby reducing the subsequent playback performance and severely causing the disk to become unusable.

Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a loading device of a compact disc player capable of preventing a disc from being damaged during loading and unloading while performing a stable loading operation of the disc. .

1 is a plan view schematically showing the configuration of a conventional compact disc player disc loading apparatus;

2 is a cross-sectional view taken along the line A-A of FIG. 1 showing the structure of a conventional compact disc player disc loading apparatus.

Figure 3 is a side view showing the configuration of a conventional compact disc player disk loading apparatus

Figure 4 is a plan view showing the configuration of a preferred embodiment of a compact disc player disk loading apparatus according to the present invention

5 is a cross-sectional view taken along the line A-A of FIG. 4 showing the configuration of a preferred embodiment of the compact disc player disk loading apparatus according to the present invention.

Figure 6 is an operating state showing the moving plate moving state of the compact disc player loading apparatus according to the present invention forward

Explanation of symbols on the main parts of the drawings

100: main chassis 102: loading motor

104: vertical guide groove 110: rotating plate

120: moving plate 122: roller groove

124: guide groove 126: rack gear

130: base plate 132: guide pin

140: elastic plate 141: damping protrusion

142: turntable 144: spindle motor

144: optical pickup device 146: feeding motor

150: chucking plate 152: chucking holder

170: roller 180: damping rubber

190: spring 200: top plate

An object of the present invention and the main chassis is fixed to the loading motor; A rotating plate coupled to the main chassis so that one side is fixed and the other side pivots; A roller fixed to the rotating end of the rotating plate and rotating by receiving the power of the loading motor by a gear group fixed to the rotating plate; A moving plate arranged vertically at the side end of the main chassis, having a working piece formed at an upper end thereof, and pivoting the rotating plate by selectively moving back and forth in conjunction with the loading motor; The rear end is rotatably coupled to the main chassis, and has a chucking holder positioned on the top of the turntable at the front end. A chucking plate integrally formed with a piece; A base plate penetrating the moving plate on both sides and fixed to the main chassis to guide forward and backward movement of the moving plate; It can be achieved by a disk loading device which is elastically supported with respect to the base plate by elastic support means, and which consists of an elastic plate rotatably supporting the turntable.

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

4 shows a configuration of a preferred embodiment of the disc loading apparatus of the compact disc player according to the present invention, which is provided with a loading motor 102 fixed on the main chassis 100 to perform loading of the disc. do.

And one side is rotatably coupled to the hinge 112 to the front end of the main chassis 100 and the other side is operated pin 114 is inserted into the roller groove 122 of the moving plate 120 driven by the loading motor 102. There is provided a rotating plate 110 is provided. Rotating plate 110 is provided on both sides of the main chassis 100, at least one is configured to interlock with the moving plate 120.

The moving plate 120 is selectively supplied with power from the loading motor 102 by a switching device such as a solenoid belt, for example, and the rotating plate 110 actuates the moving pins 114 according to the movement of the moving plate 120. By the interference of the roller groove 122 and the rotational movement is achieved based on the hinge 112 of the main chassis 100.

The rotation group 110 connected to the moving plate 120 is rotatably fixed to the gear group 160 which receives power from the loading motor 102 and decelerates to a constant speed, and is in the last gear of the gear group. Both ends are connected to the roller 170 rotatably fixed to the rotating end of each rotating plate 110 is configured to rotate the roller 170 by the rotation of the loading motor (102). The roller 170 is configured in the form of a django which gradually decreases in diameter from both ends to the center in order to guide the disc to the center.

Then, the base plate 130 is provided with guide pins 132 inserted into the fixing grooves 104 formed in the main chassis 100 through the guide grooves 124 formed on the moving plate 120 on both sides. do. At this time, at least two guide pins 132 must be formed on both sides of the base plate 130 to maintain the horizontal state of the base plate 130.

And the upper portion of the base plate 130 is provided with an elastic plate 140 having a predetermined interval with the base plate 130. The spindle motor 144 for rotating the turntable 142 is fixed to the center lower portion of the elastic plate 140, and the feeding motor 148 is fixed to the side end thereof, and the elastic plate is fixed by the feeding motor 148. An optical pickup device 146 that moves along the guide groove of 140 and reads out a signal from the disk D seated on the turntable is provided.

The optical pick-up apparatus includes an objective lens on top of which irradiates a laser generated from a pickup to a disk and simultaneously focuses laser light reflected from the disk to a required focus.

In addition, the rear end is rotatably coupled to the hinge 154 to the main chassis 100, the front end is located concentric with the turntable 142 and is connected to the elastic plate 140 and the spring 156 at all times the elastic plate 140 The chucking plate 150 is rotatably provided with a chucking holder 152 having a force directed toward the side.

According to FIG. 5, the operating piece 128 protrudes from the upper surface of the moving plate 120, the chucking plate 150 interferes with the operating piece 128, and the chucking plate 150 moves up or down. The chucking piece 158 for moving to is integrally configured. The lowering of the chucking plate 150 is made by the spring 156.

The chucking piece is preferably formed with an inclined upward portion (158a) at the tip to facilitate the entry of the operating piece 128 to the bottom of the chucking piece 158 when the moving plate 120 retreats.

In addition, as shown in FIG. 6, a plurality of damping rubbers 180 are installed on the base plate 130, and a lower portion of the elastic plate 140 is coupled to the respective damping rubbers 180 in a vertical direction. A protrusion 141 is provided, and a spring 190 is provided between the base plate 130 and the elastic plate 140 to hold the elastic plate 140 in a direction away from the base plate 130. The spring 190 is preferably installed at the periphery of each damping rubber 180, the elastic plate 140 in at least three places for stable support of the elastic plate 140, that is to maintain the horizontal state Must support Therefore, the suspension by the spring 190 and the damping by the damping rubber 180 is added to the base plate 130 is configured to retain the required resistance to the vibration shock of the vehicle body.

In addition, a top plate 200 is provided at an upper portion of the main chassis 100, and a guide plate 210 is fixed to the bottom of the top plate 200 to guide the entry and discharge of the disc when the disc is loaded.

On the other hand, the moving plate 120 is again arranged in a vertical form on one side of the main chassis 100 in Figure 4 is configured to selectively couple with the gear group 220 receives the power of the loading motor 102, The last gear of the gear group 220 (hereinafter, referred to as a switching gear 222) is fixed on the rotary lever 226 that is rotationally driven by the solenoid 224 is fixed to the loading motor in accordance with the operation of the solenoid 224 When the disk is loaded and engaged with the rack gear 126 formed on the moving plate 120 by moving power from the 102, the moving plate 120 is moved forward based on the main chassis 100. It is configured to move backward when unloading. Therefore, the moving plate 120 is moved back and forth and interlocked with the rotating plate 110 for supporting the roller 170 and the chucking plate 150 for chucking.

The operation of the compact disc player loading apparatus according to the present invention having such a configuration will be described. When the disk is inserted, the disk entry detecting means (not shown) detects this to drive the loading motor 102, and the roller 170 rotates according to the driving of the loading motor 102. Therefore, the disk located between the roller 170 and the guide plate 210 is slipped with respect to the guide plate 210 by the pressing force and rotational force of the roller 170 and is inserted into the turntable 142 to form a loading. .

Subsequently, when the disk D finishes entering a predetermined depth, the solenoid 224 operates to rotate the switching lever 226 so that the switching gear 222 engages with the rack gear 126 of the moving plate 120. The moving plate 120 starts to move forward.

When the moving plate 120 starts to move forward, the operation piece 128 of the moving plate 120 is separated from the chucking piece 158 so that the chucking plate 150 is lowered by the spring 156 force, thus the chucking holder ( A chucking operation is performed by pressing the disk into which the 152 enters the lower part onto the turntable 142.

In addition, the advancing of the moving plate 120 causes the rotation of the rotating plate 110 supporting the roller 170 so that the roller 170 is spaced apart from the bottom of the disk (D).

When the chucking plate 130 is lowered by a certain distance, the bottom surface of the disk is in close contact with the upper surface of the elastic plate 140 and in this state the chucking plate 130 is made a little lower, accordingly the elastic plate 140 The spring 190 and the damping rubber 180 is compressed to make a descent. In this case, since the spring 190 and the damping rubber 180 provide the upward force to the elastic plate 140 by the elastic restoring force, the disk D receives the predetermined pressing force and completes the disk loading.

When the loading is completed as described above, the feeding motor 148 is driven to linearly move the optical pickup device 146 toward or near the turntable 142 while irradiating a laser to the bottom of the disk and reflecting the reflected light. Video or audio signals are reproduced by the wavelength.

When the vibration or shock is applied to the main chassis in the above state, the vibration and shock is absorbed and buffered in the spring 190 and the damping rubber 180 provided between the disk and the base plate 130, so that the disk regeneration Will not affect.

As described above, the disc loading apparatus of the compact disc player according to the present invention allows the base plate to be selectively restrained or released on the main chassis by a moving plate, and is elastically supported on the base plate by springs and damping rubbers. Equipped with an elastic plate, the base plate is raised by the movement of the moving plate, and the disk which waits to enter the upper part of the elastic plate by the elastic force of the spring and damping rubber is pressed against the chucking holder of the chucking plate to perform chucking In addition to simplifying the process, damage to the recording surface due to interference between the disc and the turntable can be prevented, and a stable loading operation can be achieved.

Claims (7)

A main chassis 100 to which the loading motor 102 is fixed; Rotating plate 110 is fixed to one side and coupled to the main chassis 100 to pivot the other side; A roller 170 fixed to the rotational end of the rotation plate and rotating by receiving the power of the loading motor 102 by the gear group 160 fixed to the rotation plate; It is arranged in a vertical shape on the side end of the main chassis 100, the operating piece 128 is formed on the upper end, and pivoting the rotating plate 110 by selectively moving back and forth in conjunction with the loading motor 102 A moving plate 120; The rear end is rotatably coupled to the main chassis 100, and has a chucking holder 152 located on the top of the turntable 142 at the front end, so that the chucking holder 152 always has a downward force to the base plate ( A chucking plate 150 integrally formed with a spring 156 on one side and integrally formed with a chucking piece 158 that interferes with the operation piece 128 on one side; A base plate 130 formed at both sides of the moving plate 120 to guide pins 132 fixed to the main chassis to guide the moving back and forth of the moving plate 120; The disk loading device, which is elastically supported with respect to the base plate (130) by elastic support means, the elastic plate (140) rotatably supporting the turntable. The method of claim 1, wherein the elastic support means Damping the horizontal flow of the plurality of damping rubber 180 provided on the upper surface of the base plate 130 and the elastic plate 140 protruding downward from the bottom of the elastic plate 140 and coupled to the damping rubber 180 Supporting damping protrusion 141, Loading device for a compact disc player, characterized in that composed of a spring 190 provided between the base plate 130 and the elastic plate 140 to elastically support the two members in the direction away. 3. The loading apparatus of a compact disc player according to claim 2, wherein the spring (190) is installed at the periphery of each damping rubber (180). The loading apparatus of claim 2 or 3, wherein the damping rubber (180) and the spring (190) are arranged in at least three places for stable support of the elastic plate (140). According to claim 1, The elastic plate 140 is a signal from the spindle motor 144 for rotationally driving the turntable 142 and the disk (D) which is moved along the guide groove of the elastic plate 140 and seated on the turntable Loading device for a compact disc player, characterized in that the optical pickup device for reading the 146 and the feeding motor 148 for driving the optical pickup device is fixed. 2. The actuating piece (128) according to claim 1, wherein the actuating piece (128) interferes with the chucking piece (158) when the moving plate (120) is in the retracted position to support the chucking plate (150) in the raised position, and the chuck when the moving plate (120) is in the forward position. The loading device of the compact disc player, characterized in that to allow the lowering of the chucking plate 150 is separated from the king piece (158). The chucking piece 158 has an upwardly inclined portion 158a at its tip to facilitate the entry of the operating piece 128 into the bottom of the chucking piece 158 when the moving plate 120 is retracted. Loading device of a compact disc player, characterized in that.