JPH0227426Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a loading device for an automatic compact disc player for automatically feeding a disc to a compact disc player body.

[Prior Art] PCM type compact disk players, which belong to digital audio, are capable of continuous performance for long periods of time because the disk is small and the amount of information recorded is large.

However, traditional compact disc players
The disk must be manually loaded onto the player body, but if automatic loading is possible, automatic performance for an even longer period of time would be possible. For this reason, automatic performance is possible by applying the gripping arm used in conventional automatic performance devices for LP records, but the radius of movement of the gripping arm is large and the entire device becomes large, making it difficult to play compact discs. This results in the player's strengths being halved.

[Purpose of the invention] Taking the above-mentioned conventional facts into account, the object of the present invention is to provide a loading device for an automatic compact disk that can reduce the size of the entire device and enable automatic performance over a long period of time.

[Summary of the invention] In the automatic compact disc loading device according to the invention, a tray containing compact discs is mounted on a movable base, and the movable base is driven by the driving force of the driving means to the top of the player body along the guide means. It is moved so that the disc can be carried to the player itself.

That is, the tray with a built-in compact disk has an elevating device that accommodates the tray with a tail formed therein and allows the tray to be taken in and out at a selected position, and a hook that comes into contact with the tail in the front part, and the tray is moved through the tail and the hook. a carrier for sending out and taking back the tray, a moving platform for mounting a tray with a built-in compact disk adjacent to the lifting device, a tray moving roller installed between the lifting device and the moving platform, and a tray moving roller adjacent to the moving platform. a side wall disposed as a side wall, a pin protruding from the moving table, and a guide slot formed in the side wall for accommodating the pin, the guide slot having a horizontal portion and a vertical portion continuously formed. A guide means for guiding the moving table between a tray mounting position and a tray mounting position of the player main body, and an inclined elongated hole attached to the side wall and engaging with the pin to control the movement of the pin in the guide elongated hole. a horizontal drive plate; a drive means for horizontally moving the drive plate to move the moving table between a tray mounting position and a tray mounting position of the player body; and the pin in the vertical portion of the guide elongated hole. This is a loading device for an automatic compact disk player that has a pressure arm that is rotationally controlled.The tray-based automatic loading mechanism uses the width of the tray for sequential control to simplify tray movement. This prevents damage to the compact disk stored in the tray and ensures safety and reliability of loading.

[Embodiment of the invention] Figs. 1 to 3 show an autochanger for a compact disc to which an automatic loading device according to the present embodiment is applied. a loading device 12 provided on the player body 10;
4 and a carrier 16 disposed on the opposite side of the player body 10 via the lifting device 14.

First, the player body 10 will be explained.
This player body 10 is block-shaped, and a magnetic turntable 20 with a vertical axis is mounted at the upper center.
It protrudes from the top and is used to mount a compact disk 22 shown in FIG.

A positioning pin 24 protrudes coaxially on the turntable 20, and this positioning pin 24 is inserted into the center circular hole 22A of the compact disc 22 mounted on the turntable 20, and the compact disc 22 is fixed to the positioning pin 24. It is designed to be coaxially locked to and rotated concentrically without eccentricity.

A motor (not shown) for rotating the turntable 20 and a motor (not shown) for moving the light pen 26 approximately in the radial direction of the positioning pin 24 are built into the player body 10 .

The light pen 26 constitutes a basic unit that emits a laser beam and reads the reflected light from the unevenness formed in advance on the back surface of the compact disc 22 to extract a signal. This extracted signal is sent to a speaker via an analysis device, an amplification device, etc. (not shown), and the music recorded on the disk 22 is played.

The loading device 12 has a pair of side walls 28 and 30 on both sides of the player body 10.

Inside these side walls 28 and 30, as shown in FIGS. 2, 3 and 5, there are movable platforms 3, respectively.
2 and 34 are provided. These mobile platforms 3
2 and 34, the end closer to the lifting device 14 is the connecting plate 36
They are integrally connected to each other, and as a result, the planar shape is approximately U-shaped as shown in FIG. These moving tables 32 and 34 are the lifting device 14
A tray 38 (see FIG. 4) sent out from the tray 38 is mounted thereon.

The tray 38 is a rectangular plate made of synthetic resin, and has a circular groove 40 in the center for accommodating the compact disk 22. In the center of the circular groove 40, there is a plate with a diameter larger than that of the turntable 20. A circular hole 42 and a slit 44 through which the light pen 26 passes are formed.

The movable tables 32 and 34 on which this tray 38 is accommodated
L-shaped guides 46 protrude from these, respectively, to guide the tray 38 sliding on the movable tables 32, 34.

Further, as shown in detail in FIG. 5, a stopper 48 is formed at the end of the movable bases 32, 34 opposite to the lifting device 14, so as to restrict the amount of sliding of the tray 38 on the movable bases 32, 34. It's summery. That is, the tray 38 slides on the movable tables 32 and 34 in the direction of arrow A guided by the L-shaped guide 46, and the tip comes into contact with the stopper 48, but when it receives further pushing force in the direction of arrow A, it moves. It is adapted to move in the direction of arrow A together with the stands 32 and 34.

Sliding pins 50 and 52 protrude from the movable tables 32 and 34 toward the side walls 28 and 30, respectively. These sliding pins 50, 52 pass through guide elongated holes 54, 56 formed in the side walls 28, 30, respectively, and together with the guide elongated holes 54, 56 constitute a guide means. Each of these guide slots 54 and 56 has a longitudinal direction in the horizontal direction, and is bent from the middle portion so that the end portion opposite to the lifting device 14 has a longitudinal direction vertically downward.

Therefore, the sliding pins 50 and 52 fit into this guide slot 5.
4, 56 to the end opposite to the lifting device 14, the tray 38 moves to the end of the moving platform 3.
Tray 3 as shown in FIG.
The center circular hole 22A of the compact disk 22 accommodated in the turntable 20 is inserted into the positioning pin 2 of the turntable 20.
It can be arranged coaxially with 4. In addition, the sliding pins 50 and 52 are connected to the guide elongated hole 5.
4, 56, the tray 38 is loaded onto the player body 10 as shown in FIG. Compact disk center circular hole 22
It is designed to be inserted into A.

Further, when the sliding pin 50 moves from the horizontal portion of the elongated hole 54 to the vertical portion, it is adapted to interlock a pressure arm 58 attached between the side walls 28 and 30. That is, the pressure arm 58 has a support plate 60 fixed to one end,
This support plate 60 is connected to the side walls 28 and 30 by a support shaft 62.
It is pivoted to. This pressure arm 58
is the player body 10 due to the biasing force of an elastic body (not shown).
The support plate 60 maintains the state shown in FIGS. 3 and 5 where it is spaced apart from the top of the support plate 60.
The entrance of the elongated hole 64 formed in the guide elongated hole 54
(See Figure 5).

Therefore, when the sliding pin 50 reaches the end of the guide elongated hole 54, the sliding pin 50 is accommodated in the elongated hole 64, and when it descends through the vertical portion of the guide elongated hole 54, it is pushed through the support plate 60. A clockwise rotational force as shown in FIG. 5 is applied to the shear arm 58. When the sliding pin 50 further moves to the bottom of the vertical part of the guide elongated hole 54, the magnetic disk 66 attached to the tip of the pressure arm 58 moves through the compact disk 22 as shown in FIG. The tapered portion 24 of the positioning pin 24 attracts the turntable 20 and securely positions the compact disc 22.
A is pressed so that the central circular hole 22A of the compact disk 22 is accurately coaxially arranged with the positioning pin 24.

The tips of the sliding pins 50, 52 protruding from the guide slots 54, 56 of the side walls 28, 30 are connected to the side walls 28, 30.
30 corresponds to the drive plate 68 located on the outside. That is, as shown in detail in FIG. 8, the driving plate 68 has a pair of guide pins 74 and 76 that protrude outward from the side walls 28 and 30, respectively, inserted into guide elongated holes 70 and 72 formed horizontally. This allows it to move only in the horizontal direction. This drive plate 6
8 has a tension coil spring stretched between the side walls 28 and 30, and is urged in the direction of the lifting device 14. Also, the inclined elongated hole 7 formed in this drive plate 68
The tips of the sliding pins 50 and 52 are inserted into the holes 8 and 80, respectively.

Here, the sliding pins 50, 52 are inserted into the guide elongated hole 54,
56, the inclined elongated hole 78,
80, and is arranged at the lower ends of the inclined elongated holes 78, 80 when located at the vertical lower ends of the guide elongated holes 54, 56.

As a result, if the drive plate 68 moves in the direction of arrow A from the state shown in FIG.
2 to the bent portions of the guide slots 54 and 56,
Further proceeding in the direction of arrow A, the sliding pins 50, 52 are inserted into the guide elongated holes 54, 56 as shown in FIG.
It is designed to be moved to the lower end of the .

A rectangular notch 82 is formed in a part of the lower end of these drive plates 68, and a rack 84 is carved in the lower end between this rectangular notch 82 and the end in the direction of the lifting device 14. . This rack 84 corresponds to a pinion 86 that is pivotally supported on the side walls 28, 30, and when the drive plate 68 moves a slight amount in the direction of arrow A from the state shown in FIG. It's getting old. In other words, the drive plate 68 shown in FIG. 8 is in a state of being moved to the right by the maximum amount (in the direction of the lifting device 14), and when it is moved from this state by a slight amount in the direction of arrow A, it comes to mesh with the small gear 86. There is.

A large gear 88 is fixed coaxially to this small gear 86, and this large gear 88 is designed to mesh with a small gear 90 that is pivotally supported on the side walls 28, 30. However, a notch 92 is formed in this large gear 88, and the gear in this notch 92 portion is removed. When the notch 92 is in the state shown in FIG. 8, the large gear 88 does not mesh with the small gear 90, but when the small gear 86 is rotated counterclockwise by a slight amount from the state shown in FIG. The gear of the cantilever arm 94 thus formed meshes with the small gear 90 to transmit driving force.

In the state shown in FIG. 8, the large gear 88 is receiving a rotational biasing force in a direction in which the cantilever arm portion 94 is separated from the small gear 90 by the biasing force of the tension coil spring 96, as shown in FIG. are becoming more and more spaced apart. Further, the large gear 88 is always provided with a cantilever arm 9 that prevents further clockwise rotation from the state shown in FIG.
It is preferable to provide a stopper 98 to maintain a certain distance between the small gear 90 and the small gear 90.

A large gear 100 is fixed coaxially to the small gear 90, and this large gear 100 meshes with a drive small gear 102 that is pivotally supported on the side walls 28, 30.
The drive shaft 104 of this drive pinion 102 is connected to the side wall 30
The side end portion is connected to a motor 106 as shown in FIG. 2, and is configured to rotate in response to the driving force of the motor 106.

The rotational force of the drive pinion 102 is transmitted through the pinions 108, 110 and the large gear 112 which are pivotally supported on the side walls 28, 30.
It is designed to rotate. This large gear 11
2 is adapted to rotate a rubber roller 116 via a gear reduction train 114 provided inside the side walls 28, 30.

A movable rubber roller 118 is pivotally supported on the movable rubber roller 116 in a parallel state as shown in FIG. This rubber roller 118 is connected to the central shaft 12
As shown in FIG. 8, both ends of the
It is housed in an elongated hole 122 drilled in 30 and can be moved up and down a little. Furthermore, this central shaft 120 is biased toward the rubber roller 116 by wire springs 124 attached to the side walls 28 and 30. However, the rubber rollers 116 and 118 form a gap between them that is slightly smaller than the wall thickness of the tray 38 that accommodates the compact disk 22, and as shown by the two-dot chain line in FIG. It is designed to be held in place. As a result, the rubber roller 1 is removed from the lifting device 14.
The tray 38 sent out between the trays 16 and 118 is sent out to the moving tables 32 and 34 by the rotational force of the rubber roller 116.

Next, the elevating device 14 will be described. In the elevating device 14, an elevating table 126 is moved up and down along a guide post 128 by the driving force of a motor 134.

A box-shaped tray box 144 is installed on the lifting platform 126.
A plurality of trays 38 are placed vertically in this tray box 144 and can be inserted and removed in the lateral direction.

Next, the gear rear 16 is provided with a reciprocating block 152 and is adapted to move toward and away from the lifting device 14 by means of a cam device (not shown). This round trip block 1
A hook 154 is provided at the tip of the tray 38 for pushing out and pulling in in correspondence with the tail 158 of the tray 38.

The operation of this embodiment configured as described above will be explained.

The lifting device 14 is moved up and down to a predetermined position in order to feed a predetermined tray 38 into the loading device 12.

When the vertical movement of the lifting device 14 is completed, the carrier 1
A hook 154 projects from 6 and corresponds to a tail 158 of tray 38. Hook 154 is tray 38
When the tray 38 comes into contact with the tail 158 of the tray 38, since it does not have a large horizontal resistance, the tray 38 is pushed out by the hook 154 and protrudes from the front opening of the tray box, and the tip end touches the rubber roller 116,
118.

This movement of tray 38 is detected by a switch, which causes motor 106 of loading device 12 to rotate. For this reason, the rubber roller 116
moves the tray 38 sent out between it and the moving rubber roller 118 in the direction of arrow A in FIG. As a result of this movement, the tray 38 slides on the movable bases 32, 34, and at this end of the movement, as shown in FIG. Move it a little bit to .

As the moving tables 32 and 34 move, the driving plate 68 connected to the moving table by sliding pins 50 and 52 also moves a certain amount, and the rack 84 of the driving plate 68 meshes with the small gear 86. .

This small gear 86 receives rotational force from the rack 84, and a large gear 88, which rotates integrally with the small gear 86, meshes with a small gear 90. This small gear 90 is the motor 106
The driving plate 68 is moved in the direction of arrow A. When the sliding pin 50 reaches the bent portion of the guide elongated holes 54 and 56, the tray 38 comes out from between the rubber rollers 116 and 118, and becomes capable of vertical movement (see FIG. 6).

When the drive plate 68 further moves in the direction of arrow A in FIG. 6, the inclined elongated holes 78, 80 cause the sliding pins 50, 52 to descend along the vertical portions of the guide elongated holes 54, 56, as shown in FIG.

As a result, as shown in FIG.
A pressure arm 58 interlocking with the vertical drop of 0.52 reliably attaches the compact disk 22 to the positioning pin 24.

When the movable tables 32 and 34 reach the lowest position in this manner, a switch (not shown) is closed, the motor within the player body 10 rotates, and the turntable 20 is rotated. Therefore, the compact disc 22 rotates, and at the same time the light pen 26 moves to read the signal on the back side of the compact disc 22, and the performance is started.

When the performance is finished, the tray 38 is returned to the tray box 144 by operations that are reverse to those described above. That is, due to the reverse rotation of the motor 106, the drive plate 68 moves in the opposite direction, and the sliding pins 50,
52 moves from the vertical portion to the horizontal portion of the elongated guide holes 54, 56, the tray 38 picks up the compact disk 22 from the positioning pin 24 by the moving platforms 32, 34 rising, and reaches the state shown in FIG. Furthermore, by moving the drive plate 68 in the opposite direction, the tray 38 is sandwiched between the rubber rollers 116 and 118, and the rotational force of the rubber roller 116 moves the tail 158 of the tray 38 to a position where it can be gripped by the hook 154 of the rear 16. Push the tray 38 into the tray box 144. In this state, the end of the tray 38 is pushed out from between the rubber rollers 116 and 118.

Kiariya 16's hook 154 is trailer tail 1
58, the ends of the tray 38 are prevented from moving away from the lifting device 14 by the rubber rollers 116, 118, so the hooks 154 expand to grip the protrusion 160. This causes the hook 154 to pull the tray 38 into the tray box 144 during retraction. Tray 38
When the hook 154 comes into contact with the stopper 148 of the tray box 144, the hook 154 expands again and the tail 15
8 is released, thereby completing the storage operation of the tray 38.

Next, the elevating device 14 is moved up and down so as to send another desired tray 38 into the player main body 10 as needed, and the above operation is repeated.

As explained above, the loading device for a compact disk player according to the present invention uses a moving table for loading a tray, a side wall, a guide means, a drive plate, and a drive means, so that it is compact and automatic for compact disk players. It has an excellent effect of being able to be replaced.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the compact disk autochanger according to the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a sectional view taken along the line of Fig. 2, and Fig. 4 is a main A perspective view showing the compact disk and tray used in the example, FIG. 5 is the same as FIG.
The line sectional view, Figures 6 and 7 are the operational diagrams of Figure 5,
FIG. 8 is a side view showing the loading device with the gear on the outside of the side wall removed, and FIG. 9 is an operational view of FIG. 8. 10...Player body, 12...Loading device, 14...Elevating device, 16...Kiariya, 2
0... Turntable, 22... Compact disk, 28, 30... Side wall, 32, 34... Moving table, 38... Tray, 50, 52... Sliding pin,
54, 56... Guide slot, 58... Pressure arm, 68... Drive plate, 116... Moving rubber roller.

Claims (1)

[Scope of utility model registration request] The compact disk built-in tray has a lifting device that stores the tray with a tail formed therein and allows the tray to be taken in and out at a selected position, and a hook that comes into contact with the tail in the front part, and the tray can be moved through the tail and the hook. A carrier for feeding and retrieving trays, a moving platform for mounting a tray with a built-in compact disk adjacent to the lifting device, a tray moving roller installed between the lifting device and the moving platform, and a tray moving roller adjacent to the moving platform. The movable base includes a side wall to be disposed, a pin protruding from the movable table, and a guide elongated hole formed in the side wall for accommodating the pin. a horizontal direction having a guide means for guiding the player between a tray mounting position and a tray mounting position of the player body; and an inclined elongated hole attached to the side wall and engaging with the pin to control movement of the pin in the guide elongated hole. a drive plate; a drive means for horizontally moving the drive plate to move the moving platform between a tray mounting position and a tray mounting position of the player body; and rotation control using the pin in the vertical portion of the guide elongated hole. 1. A loading device for an automatic compact disc player, comprising: a pressure arm;