JPH05298800A - Disk loading device - Google Patents

Abstract

PURPOSE:To make it possible to change over a transmission route of drive force without using a solenoid for drive force change-over service by forcing a connection stopping member to stop the connection between an idler gear and a rack. CONSTITUTION:A disk loading device is capable of performing three operations by means of a shift plate 12 at the point of time when the loading motion of a CD is completed. The three operations include the saving of a guide roller and the fall of a clamper and the unlocking of a floating section. Furthermore, since the shift plate 12 is capable of preforming a plurality of operations, it is possible to minimize the number of components. This construction eliminates the need for a drive circuit for a solenoid as well so that power consumption is reduced. Therefore, this construction is suitable to a player installed to a car.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk loading device provided with a floating part movably supported by a chassis and a carrying roller for loading a disk on the floating part, and more particularly to a disk loading operation. The present invention relates to a disc loading device having an improved configuration for performing a series of operations after completion of the above.

[0002]

2. Description of the Related Art In recent years, disc players have been utilized in various fields, and mechanisms corresponding to the fields have been adopted. Typical examples include a floating mechanism and a loading device in a vehicle-mounted CD player. The floating mechanism is a vibration absorbing member such as a damper,
It is a mechanism that supports the floating portion on the chassis side so that it can move freely, and this mechanism absorbs vibrations while the vehicle is running to ensure stable reproduction operation. Also, as a loading device, only a mechanical structure of 8 cm CD and 12 cm
Some have a function of automatically discriminating between CDs and positioning, so that operability is improved.

By the way, in a vehicle-mounted CD player equipped with a floating mechanism and a disk loading device, a chassis is provided so that the CD can be accurately loaded above a predetermined position (that is, a turntable) of the floating portion during the loading operation of the CD. It is necessary to lock the floating part on the side. Then, when the loading operation of the CD is completed and the clamp operation for fixing the CD on the predetermined position (turntable) of the floating portion is started, the unlocking operation for unlocking the floating portion is performed.

At the time when the CD loading operation is completed, the transport roller or the CD positioning member is also retracted from the disc. That is, this is to prevent a collision with the CD moved by the clamp operation and an adverse effect on the rotation of the disc during reproduction.

The plurality of operations at the completion of the loading operation as described above are indispensable for the normal operation of the loading mechanism and the floating mechanism, and each operation is required to be surely performed at an accurate timing. There is.

By the way, it is generally desired to simplify the configuration of recent disc players. Therefore, conventionally, a drive source for the operation of the player has been used together. For example, since all of the above operations are performed at the time when the loading operation is completed, it is conceivable to use the driving force from the driving source of the transport roller. That is, the player is provided with a detecting means for detecting the completion of the loading operation and a solenoid for switching the driving force. When the detecting means detects the completion of the loading operation, the solenoid is energized and the intermittent gear or the like is operated. Then, the transmission path of the driving force from the driving source of the conveying roller is switched so as to perform at least one of the above operations. According to such a disc player, it is possible to perform a plurality of operations with one drive source, and it is possible to simplify the configuration.

[0007]

However, in the above-mentioned conventional example, the solenoid is an expensive member and the drive circuit of the solenoid must be provided, so that the structure is complicated and the manufacturing cost is increased. Moreover, the power consumption of the player is increased by the solenoid.

The present invention has been proposed in view of the above situation, and an object thereof is to perform a series of operations from the completion of the loading operation of the disk by not using the solenoid for switching the driving force. It is an object of the present invention to provide a disc loading device that can be accurately and reliably performed.

[0009]

In order to solve the above problems, the disk loading apparatus of the present invention is a power transmission system for transmitting a driving force of a drive motor to at least one of a roller retracting means, a clamping means and an unlocking means. The transmission means includes an idler gear rotated by a driving force from a drive motor, a rack connectable to the idler gear by the rotational force from the idler gear, and the idler gear when the idler gear is rotating in a direction of loading a disk. The swing plate that urges in the direction of, the connection blocking member that contacts the swing plate and blocks the connection between the idler gear and the rack, and the connection blocking member is moved to connect the idler gear and the rack when the disk loading operation is completed. And a connection permitting member for permitting the connection.

Further, according to the present invention, the power transmission means includes a movable shift plate on which the rack is formed, and the roller retracting means by the movement of the shift plate,
It is characterized in that at least one of the clamping means and the unlocking means is operated.

[0011]

In the present invention having the above-mentioned structure, the connection blocking member blocks the connection between the idler gear and the rack during the disk loading operation. Therefore, even if the idler gear rotates in the disc loading direction due to the drive force of the drive motor, the drive force of the drive motor is not transmitted to the rack, and the rack is in a stopped state. Therefore, the power transmission means does not transmit the driving force of the drive motor to any of the roller retracting means, the clamping means, and the unlocking means.

However, when the loading operation of the disk is completed, the connection permitting member moves the connection blocking member to connect the idler gear and the rack. Therefore, the driving force of the drive motor is transmitted to the rack to operate the rack, and the power transmission means transmits the driving force of the drive motor to at least one of the roller retracting means, the clamping means, and the unlocking means. In this way, the disc player of the present invention can switch the transmission path of the driving force of the drive motor without using the solenoid for switching the driving force.

Further, in the present invention, the roller retracting means, the clamping means and the unlocking means can be operated by the movement of the shift plate provided in the power transmission means.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the disk loading device of the present invention will be specifically described below with reference to FIGS.
The present embodiment is a mechanism adopted in an in-vehicle CD player equipped with a floating mechanism, and includes 8 cm CDs 1 and 12c.
This is a device for automatically discriminating mCD2 and positioning these CD1 and CD2 at predetermined positions.

Hereinafter, the present embodiment will be described with reference to the floating portion, the unlocking means of the floating portion, the loading means,
The operation completion detection means and the power transmission means will be separately described. Among these, the characteristic feature of the present embodiment lies in the motion transmitting means.

In the plan view, the lower side in the figure is the front side of the player, the upper side in the figure is the back side of the player, and in the side views excluding FIGS. 22 and 23, the left side in the figure is the front side of the player and the right side in the figure. This is the back side of the player, and the movement of each member to the front side is the backward movement, and the movement to the back side is the forward movement. Further, in each drawing, components that are not directly related to the description of the drawing are omitted.

[A. Floating part 24 ... FIGS. 1 and 1
2] The disk loading of this embodiment is composed of a chassis fixed to the vehicle and a floating portion 24. Of these, as shown in FIG. 1, damper shafts 24a protruding outward are provided at four corners of the floating portion 24. These damper shafts 24a are inserted into a damper (not shown), and the damper is attached to the lower case 25.
By being attached to the left and right side surfaces (illustrated by the one-dot chain line), the floating portion 24 is movably supported by the lower case 25. Although not shown, the floating section 24 is provided with a turntable for rotating the CDs 1 and 2, and a pickup section for reading signals from the CDs 1 and 2.

Further, as shown in FIG. 12, a clamper 17 is provided as a clamping means on the rear side edge of the floating portion 24.
Is rotatably provided. The clamper 17 is provided with an elastic member (not shown) that constantly urges the tip of the clamper 17 downward. Further, a clamper lift link 16 that pushes up the clamper 17 is provided on the lower surface of the clamper 17. The clamper lift link 16 is rotatably provided on a side surface portion (not shown) of the lower case 25, and a cam follower 16a is provided at a front end portion thereof.

On the other hand, the chassis is the lower case 25 described above.
And an upper cover 23 (shown in FIG. 2) that covers the lower case 25 from above.

[B. Unlocking means for floating portion 24 ... See FIGS. 1, 20, and 22] Floating portion 2
The lock releasing means 4 is a locked portion 24c formed at three left and right and front side edge portions of the floating portion 24,
It consists of three members that can be engaged here. The three members are the shift plate 12 and the front lock plate 1 in the order in which they are engaged with the right, front, and left locked portions 24c.
9 and the side lock plate 20. 20 shows the shift plate 12 side, and FIG. 22 shows the side lock plate 20.
Showing the side.

Each member is movable in the front-rear direction, and an engaging portion 12 that can engage with the locked portion 24c is provided at the rear end portion thereof.
a, 19a, 20a are provided. Engaging portions 12a, 19a, 20a and engaged portions 24c, 24 that engage with each other
c and 24c lock the floating portion 24 at three points, and one of them holds the other in the vertical direction. Therefore, due to the engagement of both, the floating portion 24 is locked not only in the front-rear direction but also in the vertical direction (height direction).

Of these members, the front lock plate 19 is rotatably attached to the component member of the loading means, and the locking portion 19a is formed at the center of the rear side edge portion so as to project in a substantially triangular shape. On the other hand, the shift plate 12 is provided on the right side surface of the lower case 25 with the side lock plate 20.
Are arranged on the left side surface of the lower case 25, respectively.
The engaging portions 12a and 20a are formed in a groove shape. Further, a cam hole 20b is provided at the tip of the side lock plate 20.
Are formed. The shift plate 12 also serves as a component of power transmission means.

[C. Loading Means] The loading means is composed of a carrying section for actually carrying the CD and a judging section for judging the size of the CD and performing positioning.

[C-1. Conveying Unit ... See FIGS. 1 and 16] The conveying unit holds the CDs 1 and 2 from above and below and conveys them to a turntable and a guide roller 14.
And a drive motor 2 that applies a rotational force to the transport roller 13.
6 (indicated by a dotted line in FIG. 1). Both rollers 13,
Reference numeral 14 is arranged in a disc insertion slot into which the CDs 1 and 2 are inserted, and is provided so as to be rotatable in the forward and reverse directions over the width direction of the chassis. A roller shaft 15 is provided on the rotating shaft of the guide roller 14.

A lower disc guide 18 is rotatably provided on the roller shaft 15. A substantially V-shaped side surface portion is formed on a side surface of the lower disk guide 18, and the front lock plate 19 is rotatably provided at a bent portion of the side surface portion. The end of the roller shaft 15 is inserted into the cam hole 20b of the side lock plate 20.

[C-2. Discrimination Unit ... See FIG. 2]
It is composed of six members constituting the link mechanism, that is, the front sensor arm 3, 3, the rear sensor arm 4, 4, the front arm link 5, and the rear arm link 6. Of these members, the sensor arms 3 and 4 are rotatably attached, and the arm links 5 and 6 are attached to the lower surface of the upper cover 23 so as to be movable in the left-right direction, that is, in a direction substantially perpendicular to the loading direction.

The sensor arms 3 and 4 are arranged symmetrically, and sensor pins 3a and 4a contacting the loaded CDs 1 and 2 are provided on the tip end side (front side) so as to project downward. Gears 3b and 4b are coaxially formed on the rotation axes of the sensor arms 3 and 4.

In the arm links 5 and 6, racks 5a and 6a that engage with the gears 3b and 4b from the front side are formed at the right end portions in the drawing, and gears 3b and 4 are formed at the left end portions in the drawing.
Racks 5a and 6a are formed to engage with b from the back side. A square hole 5b is formed in the center of the arm link 5 in the width direction.
And the arm link 6 is provided with a claw portion 6b to be inserted into the square hole 5b.

A hook portion 6c is formed at the right end of the arm link 6 in the figure. The hook portion 6c is inclined rightward toward the front side. Furthermore, the arm links 5, 6
The right ends of the springs 21 and 22 in the figure are hooked on the. The left ends of the springs 21 and 22 in the figure are hooked on the upper cover 23 side, and the springs 21 and 22 bias the arm links 5 and 6 to the left.

[D. Loading operation completion detecting means ... See FIG. 5] The operation completion detecting means includes the end plate 7 and the first plate.
The trigger plate 8 of FIG. The end plate 7 is rotatably attached to the arm link 6,
End pin 7a that can contact CDs 1 and 2 at the right end in the figure
Are formed. In addition, the end plate 7 has a protrusion 7
b is provided.

The first trigger plate 8 is attached to the lower surface of the upper cover 23 so as to be movable back and forth, and a deformed hole 8a is formed as a cam hole. This irregular hole 8a
The projecting portion 7b is inserted through the inner peripheral surface of the protruding portion 7b so as to slide on its inner periphery.

8 cmCD at the left end on the front side of the odd-shaped hole 8a
A first detector 81a for detecting the completion of loading No. 1 is formed. From the first detecting portion 81a to the odd-shaped hole 8
A first plate relief portion 82a is formed on the right side along the inner circumference of a on the diagonally inner side. In addition, the second plate relief portion 83 is provided on the inner side of the first hole 2a from the first plate relief portion 82a and at the right end on the far side of the irregular hole 8a.
a is formed. Furthermore, from the second plate relief portion 83a to the left along the inner circumference of the deformed hole 8a, 12c
Second detection unit 8 for detecting completion of loading of mCD2
4a is formed.

[E. Power transmission means ... See FIGS. 9 and 24]
The power transmission means includes a first trigger plate 8, a second trigger plate 9, a swing plate 10, an idler gear 11, a shift plate 12, and a rack 27. Of these, the first trigger plate 8 constitutes the operation completion detecting means as described above, and at the same time, the idler gear 11
Included in the power transmission means as a connection permitting member that permits the connection between the rack and the rack 27.

The second trigger plate 9 is a connection blocking member that blocks the connection between the idler gear 11 and the rack 27. A hook 9a that engages with the first trigger plate 8 is provided at the rear end of the second trigger plate 9, and a pressing portion 9b that presses the rear end of the swing plate 10 from above is provided at the front end. Has been formed.

The swing plate 10 has a front end 10b.
Is rotatably provided on the lower case 25 with the spindle as a support shaft, and rotatably supports the idler gear 11 at the center. A gear 10c (shown by a chain line in FIG. 9) that is screwed into the idler gear 11 is provided at the end portion 10b, and the idler gear 11 side of the swing plate 10 is rotated by the rotational force of the gear 10c when the disc is loaded. It is biased upward. Further, a taper portion 10a is formed at an end portion on the back side of the swing plate 10, and the pressing portion 9b of the second trigger plate 9 presses the taper portion 10a from above. A gear (not shown) that drives the idler gear 11 receives a rotational force from a drive motor 26.

The shift plate 12 is a driving force switching member for transmitting the driving force from the driving motor 26 to the clamper 17 by connecting the idler gear 11 and the rack 27. A cam hole 12b inclined downward toward the rear side is formed substantially in the center of the shift plate 12, and a cam hole 12c inclined upward toward the rear side is formed near the front end.
The cam follower 16a of the clamper lift link 16 is inserted through the cam hole 12b, and the roller shaft 15 is inserted through the cam hole 12c. Further, as shown in FIG. 24, the hook portion 1 is provided above the shift plate 12.
2d is provided. The hook portion 12d is adapted to engage with the hook portion 6c of the arm link 6 when the shift plate 12 moves forward.

The rack 27 is formed at the center of the upper edge of the shift plate 12 so as to face downward, and when the swing plate 10 rotates upward, the idler gear 1 is rotated.
It is designed to connect with 1.

Next, the loading operation, the completion detection operation of the loading operation, the power transmission operation, and the operation after the completion detection of the loading operation of the present embodiment will be described. [A. Loading Operation] When the loading operation is performed in this embodiment, the floating portion 24 is locked to the chassis. That is, the engaging portions 12a, 19a, 20a of the shift plate 12, the front lock plate 19, and the side lock plate 20 are the floating portions 24.
Engaged with each locked portion 24c.

[A-1.8 cm CD1 loading operation ... See FIGS. 2 to 5] In this state, when the 8 cm CD1 is inserted from the disc insertion opening, the conveying roller 13 and the guide roller 14 hold the 8 cm CD1 and the driving motor 26 drives the motor. The transport roller 13 receiving the driving force rotates and loads it. 8cmCD by loading operation
1 spreads the sensor pin 3a of the sensor arm 3 in the left-right direction, and the left and right sensor arms 3, 3 rotate to open.

Therefore, the gear 3b of the sensor arm 3 rotates, the rotational force of the sensor arm 3 is transmitted to the arm link 5 via the rack 5a meshing with the gear 3b, and the arm link 5 moves to the right. When the arm link 5 moves to the right and the left end of the square hole 5b pushes the claw 6b of the arm link 6, the arm link 6 also moves to the right. The moving force of the arm link 6 is transmitted to the rotation of the gear 4b of the sensor arm 4 via the rack 6a, and the left and right sensor arms 4 and 4 rotate to open.

By the way, the 8 cm CD 1 has a carrying roller 13
Since the width is smaller than that of the disk, it passes through any part of the disc insertion slot. For example, when passing through almost the center of the transport roller 13 (FIG. 3), when the loading of the 8 cm CD 1 progresses and the width of the sensor pin 3 a that is expanded according to the shape of the 8 cm CD 1 narrows, the elastic force of the spring 21 that acts via the arm link 5 is increased. Rotate to close by.

The arm link 5 moves leftward in the figure in synchronization with the movement of the sensor arm 3, but in the initial state, as shown in FIG. 2, the left end face of the square hole 5b and the claw of the arm link 6 are moved. Since a slight gap is provided in advance between the left end surface of the portion 6b, they do not come into contact with each other, and the arm link 6 does not move. That is, the sensor arm 4 is provided with a time lag so that the sensor arm 4 can be slightly moved from the sensor arm 3 to operate. Therefore, the sensor arm 4 also does not operate, and the sensor pin 4a positions the 8 cm CD1 at a predetermined position (that is, above the turntable).

Even if the above-mentioned gap is omitted and the arm link 5 moves in synchronism with the movement of the sensor arm 3, after the center of the disc moves to the inner side from between the sensor pins 3a, 3a, Since the sensor arms 3 and 3 are closed, the sensor arms 4 and 4 are returned to the initial state, and the sensor pins 3a,
4a can be positioned at a predetermined position of 8 cm CD1 (that is, above the turntable).

On the other hand, 8 cm CD1 is the transport roller 1
The operation of each member when passing the left end or the right end of No. 3 will be described. FIG. 4 illustrates a case where the 8 cm CD1 passes the right end of the transport roller 13, but at this time, as the loading of the 8 cm CD1 progresses, the sensor arm 3 largely rotates so as to open to the maximum, and the arm links 5 and 6 greatly move to the right. Move in the direction.

As described above, the arm link 5 in the initial state
In the arm link 6, when a predetermined clearance is set between the left end surface of the square hole 5b and the claw portion 6b, there is a time lag between the operation start timings of the arm link 5 and the arm link 6, and the sensor arm 4 is operated after the operation of the sensor arm 3.

Since the edge of the 8 cm CD1 is largely curved, when the 8 cm CD1 hits the sensor pin 4a of the sensor arm 4, the force exerted on the sensor arm 4 by the 8 cm CD1 is in the direction of closing the sensor arm 4.
Therefore, 8 cm CD1 is the sensor pin 4 of the sensor arm 4.
When a is pressed, the left and right sensor arms 4 and 4 rotate so as to close, and the arm link 6 accordingly returns to the left.

As the arm link 6 moves to the right, the end plate 7 also moves to the right, but the protruding portion 7b extends from the first groove 81a of the deformed hole 8a of the first trigger plate 8. Since the arm link 6 moves to the left again before it comes off, the end plate 7 also moves to the left,
The protruding portion 7b does not come off the first groove portion 81a of the deformed hole 8a of the first trigger plate 8 and finally reaches the state shown in FIG.

[A-2. Loading of 12 cm CD1 ... See FIGS. 6 to 8] On the other hand, when loading 12 cm CD2, the same as for 8 cm CD1, 12 cm C
The carrying force from D2 is sequentially transmitted to the sensor arm 3, the arm link 5, the arm link 6, and the sensor arm 4, but since the curve of the edge of 12 cm CD2 is smaller than that of 8 cm CD1, the carrying force from 12 cm CD2 is the sensor arm. 4 acts on the sensor pin 4a so that it opens (FIG. 7).

Therefore, the left and right sensor arms 4 and 4 rotate to open, and the arm link 6 further moves to the right (from FIG. 7 to FIG. 8). At this time, since the claw portion 6b slides rightward in the square hole 5b, the arm link 5 does not interlock with the arm link 6 unless the claw portion 6b contacts the right end surface of the square hole 5b. Therefore, 12 cm CD2
If the sensor arm 3 rotates so as to close following the edge of, the arm link 5 moves leftward accordingly. The sensor pins 3a, 4a of the sensor arms 3, 4 thus moved position the 12 cm CD 2 at a predetermined position (that is, above the turntable) (FIG. 8).

[B. Loading Operation Completion Detection Operation] Next, the loading operation completion detection operation will be described.

[B-1.8 cmCD1 Completion Detecting Operation ... See FIG. 5] When the 8 cmCD1 is positioned, the 8 cmCD1 is immediately before the completion of loading the 8 cmCD1, that is, immediately before the 8 cmCD1 contacts the two sensor pins 4a. It abuts against the end pin 7a of the end plate 7 and presses the end pin 7a until the loading is completed. The protruding portion 7b has a first detecting portion 81.
Since it is in the area a, the first trigger plate 8 moves in the loading direction by a predetermined distance until the loading is completed.

The operation of the first trigger plate 8 is 8
This is an operation of detecting the completion of the loading operation of the cmCD 1, and this operating force is transmitted to the second trigger plate 9 to trigger an operation switching so as to shift from the loading operation to the clamping operation.

[B-2.12 cm CD2 loading completion detection operation ... See FIG. 8] In contrast, 12c
When the mCD2 is positioned, the sensor arm 4 is opened by the 12 cm CD2, and the arm link 6 moves to the right (FIGS. 7 and 8), but the end plate 7 also moves as the arm link 6 moves. Since it moves to the right, the protruding portion 7b is formed in the deformed hole 8 of the first trigger plate 8.
The first detection unit 81a of a is removed. And 12 cmC
Since D2 pushes the end pin 7a of the end plate 7 in the depth direction, the projecting portion 7b moves in the deformed hole 8a and comes into contact with the second detecting portion 84a.

Then, the second detecting portion 84a is pressed until the loading is completed. As a result, when loading is completed, the first trigger plate 8 moves in the loading direction by the same distance as when loading the 8 cm CD 1. The operation of this first trigger plate 8 is 12 cmC
It becomes the operation of detecting the completion of the loading operation of D2,
This operating force is transmitted to the second trigger plate 9,
This triggers the operation switching so as to shift from the loading operation to the clamp operation.

[C. Power transmission operation ... See FIGS. 9 to 11]
From the initial state shown in FIG. 9, the first trigger plate 8
Is transmitted to the second trigger plate 9, and when the second trigger plate 9 moves forward (moves in the direction of the arrow in the figure), the pressing portion 9b causes the taper portion 1 of the swing plate 10 to move.
While sliding 0a, it is disengaged from this and allows the idler gear 11 and the rack 27 to be connected. When the swing plate 10 rotates upward, the idler gear 11 and the rack 2
And 7 are connected (FIG. 10). Therefore, the drive motor 26
Driving force is transmitted to the shift plate 12 via the idler gear 11 and the rack 27, and the shift plate 12 moves forward (FIG. 11).

[D. Operation after Detection of Completion of Loading Operation] When the shift plate 12 advances due to the above power transmission operation, the following four operations D-1 to D-4 are performed.

[D-1. Clamping operation ... Figures 12 to 15
See] When the shift plate 12 moves forward, the cam hole 12b
Raises the cam follower 16a, and the clamper lift link 16 rotates clockwise in the drawing. Therefore, the clamper 17 descends due to the elastic force of the elastic member (not shown),
CDs 1 and 2 are lowered to fix the CD on the turntable.

[D-2. Retraction of the guide roller 14 ... Fig. 1
6 to FIG. 19] When the shift plate 12 moves forward, the cam hole 12c lowers the roller shaft 15,
The guide roller 14 descends and retracts from the lower surface of the CD 1, 2. It should be noted that the conveyance rollers 13 are separated from the upper surfaces of the CDs 1 and 2 by the descent of the CDs 1 and 2 accompanying the clamping operation.

[D-3. Unlocking of Floating Portion 24 ... See FIGS. 20 to 23] As the shift plate 12 advances, the engaging portion 12a is disengaged from the locked portion 24c on the floating portion 24 side (from FIG. 20 to FIG. 21). or,
When the shift plate 12 moves forward, the roller shaft 15
Goes down. Thereby, the lower disc guide 18, the front lock plate 19, and the side lock plate 2
0 (from FIG. 22 to FIG. 23) retreats. Therefore, the engaging portions 19a and 20a are disengaged from the locked portion 24c. In this way, the three points are unlocked and the floating part 24
Becomes idle with respect to the chassis.

[D-4. Retracting the sensor arms 3 and 4 and the end plate 7 ... See FIGS. 5, 24 and 25] When the clamping operation is completed, the sensor arms 3 and 4 and the end plate 7 that were positioning the CDs 1 and 2 are In this way, the CDs 1 and 2 are saved. First, Fig. 5 is 8 cm
The state where the loading operation of the CD1 is completed is shown. When the completion of the loading operation is detected from this state, the shift plate 12 advances as described above, and the hook portion 12d pulls the hook portion 6c of the arm link 6 to the right side in the figure (FIG. 24).

That is, when the hook portion 6d is pulled in by the hook portion 12d, the arm link 6 in the disk positioning state moves further to the right, and the sensor arm 4,
4 rotates from the disk positioning state to further open and retracts from the CDs 1, 2. Further, the claw portion 6b of the arm link 6 pushes the right end surface of the square hole 5b of the arm link 5 to move the arm link 5 to the right, and the sensor arms 3 and 3 also retract from the CDs 1 and 2.

Further, the end plate 7 is the arm link 6
Of the first detection unit 8 and the protrusion 7b rotates.
When it is in contact with 1a, it moves to the first plate escape portion 82a, whereby the end pin 7a separates from CD1.

FIG. 25 shows the retracting operation of the sensor arms 3 and 4 and the end plate 7 when the 12 cm CD 2 is used. In this case, the protrusion 7b moves from the second detector 84a to the second plate relief 83a, whereby the end pin 7a is separated from the CD2.

In this embodiment described above, CD1,
When the loading operation of No. 2 is completed, the driving force from the drive motor 26 is transmitted to the shift plate 12, and the shift plate 12 moves forward to retract the guide roller 14.
It is possible to perform three operations of lowering the clamper 17 and unlocking the floating portion 24.

Moreover, the switching of the drive force transmission path when the drive force of the shift plate 12 is obtained from the drive motor 26 can be performed without using an expensive solenoid. Furthermore, in this embodiment, the shift plate 12 can perform a plurality of operations, so that the number of members can be reduced. Therefore, the manufacturing cost can be significantly reduced. Further, since the drive circuit of the solenoid is not necessary, the power consumption is reduced and it is suitable for a vehicle player.

The present invention is not limited to the above embodiment, but the shape, arrangement, etc. of each member can be changed as appropriate.

[0067]

As described above, according to the disk loading apparatus of the present invention, a series of operations from the completion of the disk loading operation to the clamping operation can be accurately and reliably performed, and the driving force can be switched. Since the solenoid is not used when performing, the configuration can be simplified,
In addition, the manufacturing cost can be kept low and the economic effect is high.

[Brief description of drawings]

FIG. 1 is a plan view showing a floating portion and a lower case according to an embodiment of the present invention.

FIG. 2 is a plan view of the present embodiment (initial state of 8 cm CD loading operation).

FIG. 3 is a plan view of this embodiment (a state in which an 8 cm CD passes through the center of a conveyance roller).

FIG. 4 is a plan view of this embodiment (a state in which an 8 cm CD passes through the right end of a conveyance roller).

FIG. 5 is a plan view of the present embodiment (8 cm CD loading operation completed state).

FIG. 6 is a plan view of the present embodiment (initial state of 12 cm CD loading operation).

FIG. 7 is a plan view of the present embodiment (in the middle of a 12 cm CD loading operation).

FIG. 8 is a plan view of the present embodiment (12mCD loading operation completed state).

FIG. 9 is a right side view showing a power transmission operation in the present embodiment (a state in which an idler gear and a rack are not connected) and a plan view of a second trigger plate.

FIG. 10 is a right side view showing the power transmission operation in this embodiment (initial state of connection between the idler gear and the rack).

FIG. 11 is a right side view showing a power transmission operation in the present embodiment (a forward state of the shift plate 12).

FIG. 12 is a right side view (initial state) showing a clamp operation in the present embodiment.

FIG. 13 is a right side view (halfway state) showing a clamp operation in the present embodiment.

FIG. 14 is a right side view (halfway state) showing a clamp operation in the present embodiment.

FIG. 15 is a right side view (completed state) showing the clamp operation in the present embodiment.

FIG. 16 is a right side view (initial state) showing the roller retracting operation in the present embodiment.

FIG. 17 is a right side view showing the roller retracting operation in the present embodiment (in the middle).

FIG. 18 is a right side view showing the roller retracting operation in the present embodiment (in the middle).

FIG. 19 is a right side view (completed state) showing the roller retracting operation in the present embodiment.

FIG. 20 is a right side view of the present embodiment (the floating portion is in a locked state).

FIG. 21 is a right side view of the present embodiment (the floating portion is unlocked).

FIG. 22 is a left side view of the present embodiment (the floating portion is in a locked state).

FIG. 23 is a left side view of the present embodiment (the floating portion is unlocked).

FIG. 24 is a plan view showing the retracting operation of the disk positioning means of the present embodiment (8 cm CD positioning means retracting operation completed state).

FIG. 25 is a plan view showing the retracting operation of the disc positioning means of the present embodiment (12 cm CD positioning means retracting operation completed state).

[Explanation of symbols]

 1 8cmCD 2 12cmCD 3,4 Sensor arm 5,6 Arm link 7 End plate 8 First trigger plate 9 Second trigger plate 10 Swing plate 11 Idler gear 12 Shift plate 13 Conveying roller 14 Guide roller 15 Roller shaft 16 Clamper Lift link 17 Clamper 18 Lower Disc Guide 19 Front Lock Plate 20 Side Lock Plate 21, 22 Spring 23 Upper Cover 24 Floating Part 25 Lower Case 26 Drive Motor 27 Rack

Claims (2)

[Claims] 1. A chassis, a floating portion movably supported by the chassis, a rotatable conveying roller for loading or ejecting a disk with respect to the floating portion, and a drive motor for rotating the conveying roller. At least one of clamp means for clamping the disc on the floating portion, roller retracting means for retracting the transport roller from the disc, and lock releasing means for locking the floating portion on the chassis and unlocking the lock, In a disk loading device including a power transmission unit that transmits a driving force of the drive motor, the power transmission unit includes an idler gear that rotates by receiving a driving force from the drive motor, and a rack that is connectable to the idler gear. , The idler gear is a disc A swing plate for urging the idler gear toward the rack when rotating in the loading direction; a connection blocking member for contacting the swing plate to block the connection between the idler gear and the rack; and a disk loading A disc loading apparatus comprising: a movable coupling permitting member that permits coupling of the idler gear and the rack by moving the coupling blocking member when the operation is completed. 2. The power transmission means includes a movable shift plate on which the rack is formed, and the roller retracting means by movement of the shift plate,
2. The disk loading device according to claim 1, wherein at least one of the clamping means and the unlocking means operates.