JP2003168254A - Disk unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost and space-saving slot-in type disk unit in which the insertion operation of other disks is blocked in a disk mounted state and insertion blocking mechanism is easily removed when unnecessary. <P>SOLUTION: In the disk unit, predetermined components including the disk slot 21 at the front part of the disk unit, a turntable and a disk transport means are mounted on a traverse base 20, the floating support of the traverse base is carried out by the unit base 10, a floating lock mechanism operates during loading or ejection of the disk, and the traverse base is locked at a prescribed position within a floating range. The disk unit is provided with a stopper lever 71 having a stopper part 71c displaced between a first position at the front side of the disk slot and a second position evacuated from the front side of the disk slot according to the operating state of the floating lock mechanism. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, the so-called C
D (Compact disc) or DVD (Digital
The present invention relates to a disc device for reproducing information recorded on a disc as an information recording medium such as a video disc or a digital versatile disc and / or recording information on the disc.

[0002]

2. Description of the Related Art As a disk device for an information recording medium disk as described above, a so-called slot-in device is used in which a disk is inserted / ejected from a groove-shaped opening for disk insertion / ejection provided in the front part of the apparatus. The type is generally well known (see, for example, Japanese Patent Application Laid-Open No. 2000-298903), and in particular, it is widely used as a vehicle-mounted disk device that requires compactness.

In this type of disc device, a turntable that supports and rotates the disc, a pickup for writing and (recording) / reading (reproducing) information signals to and from the disc, and an opening and a turntable for the disc and the turntable. A transfer mechanism for transferring to and from the top and main drive parts such as those drive mechanisms are mounted on one base member (so-called traverse base), and the traverse base is supported on a frame body (device frame) of the device. In general, it is configured so that

When the traverse base is supported on the apparatus frame as described above, in order to absorb the vibration input from the apparatus frame to the traverse base, the traverse base is supported via an elastic member such as rubber and / or spring. It is known that the traverse base is supported by the apparatus frame in a floating range (floating state) within a certain range in at least one direction (usually at least in a direction orthogonal to the disc on the turntable). ing.

That is, in the case of a normal horizontal type, it is floatingly supported within at least a certain range in the vertical direction (more preferably, in the front-back and left-right horizontal directions). For example, the actual fair 7-1612
No. 3, gazette discloses a liquid-filled damper that can be used for such floating support.

As described above, by floatingly supporting the traverse base with respect to the device frame in at least one direction (usually at least in the vertical direction, more preferably also in the horizontal direction), vibration input from the device frame is absorbed. It is possible to effectively protect the disc on the turntable and the drive parts on the traverse base, and to prevent the occurrence of problems such as skipping during playback of a music disc. it can. In particular, in the case of a vehicle-mounted disk device, the vibration applied to the vehicle body while the vehicle is traveling is input to the traverse base from the device frame fixed to the vehicle body, so the input vibration is effectively absorbed. In order to do so, a traverse-based floating support mechanism is essential.

In the disk device provided with such a floating support mechanism, the traverse base is maintained in the floating support state when the disk is mounted on the turntable (for example, when the disk is reproduced). on the other hand,
When performing a loading operation that inserts the disc into the device through the loading / unloading opening and sets it on the turntable, or an ejecting operation that ejects the disc on the turntable from the loading / unloading opening, set the traverse base at a fixed position. It is required to keep still.

Therefore, a floating lock mechanism for locking the traverse base at a predetermined position in the floating range by a floating support mechanism is provided, and the floating lock mechanism is activated during the disc loading operation and the eject operation to lock the traverse base in the locked position. It is known to keep in.
For example, in a normal horizontal type, the traverse base is locked at a predetermined lower position in the floating range by operating the floating lock mechanism at the time of loading operation and eject operation of the disk. Further, the transfer means for transferring the disc is located at a position where the transfer operation is possible.

[0009]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, as described above, the insertion / insertion of the disc is performed through the groove-like opening for the disc insertion / removal.
In the slot-in type disc device for ejecting, for example, even when the disc is mounted on the turntable when the disc is reproduced, for example, the operation of inserting another disc through the disc insertion / ejection opening is not noticed. May occur.

As described above, when another disc is further inserted while the disc is mounted on the turntable, a defect such as a disc damage may occur. In particular, when the disc is rotating, such as during disc playback, the disc is extremely damaged. Especially in the case of DVDs, etc., where the rotation speed is particularly high,
The damage is significant.

To solve this problem, a detection sensor for detecting that a disk is mounted on the turntable, an actuator of, for example, a plunger type driven by a detection signal of the detection sensor, and the actuator are connected to the actuator. It is conceivable to provide a disc insertion blocking mechanism including a stopper member that moves forward and backward on the front side of the disc loading / unloading opening. By providing such a mechanism,
When the mounting state of the disc on the turntable is detected, the actuator is driven and the stopper member is moved forward to be positioned in front of the disc loading / unloading opening, so that the insertion of another disc is prevented.

However, when such a structure is adopted, the following problems occur. That is, since it is necessary to newly provide the above-mentioned detection sensor and actuator dedicated to the disc insertion preventing mechanism and to connect the both so as to be able to exchange signals, the manufacturing cost becomes high and the structure becomes complicated.

Moreover, these detection sensors, actuators, and electrical wiring between them cannot be easily attached / removed once they have been installed, so they cannot be removed even if they are not particularly required, and thus are unnecessary. It will be shipped with the extra equipment installed and used. In fact, for example, in the case of a disc device mainly used for navigation, it is almost impossible to assume that another disc will be further inserted during disc reproduction. The mechanism will be used with it attached.

The above-mentioned actuator and stopper member are usually arranged in the vicinity of the end of the disc loading / unloading opening in terms of layout and ease of mounting in the disc device. In this case, in order to reliably prevent the interference between the disc that is mounted on the turntable and is in use and the other disc that is inserted later, the stopper member should be sufficiently removed from the outer peripheral portion of the disc that is in use. Must be located in a remote location. And for that,
It is necessary to provide the disc loading / unloading opening at a position that extends considerably forward from the center of the turntable, which causes a problem that the disc device becomes large. In particular, in the case of an on-vehicle disc device, the mounting space is limited,
Increasing the size of the disk device is a major obstacle to the layout.

The present invention has been made in view of the above problems, and in a slot-in type disk device, it is possible to prevent the insertion operation of another disk in a disk mounted state at low cost and in a small space. Moreover, it is an object of the present invention to make it possible to easily remove such an insertion blocking mechanism when it is unnecessary.

[0016]

Therefore, the first aspect of the present invention is as follows.
The disk device according to the invention (hereinafter referred to as the first invention) includes a disk loading / unloading opening for loading and unloading a disk, a turntable capable of supporting and rotating the disk, and the disk loading / unloading opening. A transfer means for transferring the disc to and from the turntable, a traverse base on which predetermined components including the transfer means, the disc loading / unloading opening, and the turntable are mounted, and the traverse base with respect to the apparatus frame at least. A floating support mechanism that supports floating in one direction and a floating lock mechanism that locks the traverse base at a predetermined lock position within the floating range of the floating support mechanism are provided.
The floating lock mechanism operates during the loading operation for inserting the disc into the device through the loading / unloading opening and setting it on the turntable, or during the ejecting operation for ejecting the disc on the turntable from the loading / unloading opening. Assuming that the traverse base is locked at a predetermined lock position within the floating range, the traverse base is displaceable in a direction substantially orthogonal to the disc loading / unloading direction with the attachment portion to the device frame as a fulcrum. A disc insertion restriction member having a displacement portion is provided, and the displacement portion of the disc insertion restriction member has a first position located on the front side of the disc insertion opening and exit portion according to an operating state of the floating lock mechanism, Displaced between a second position retracted from the front side of the disc loading / unloading opening It is obtained by said.

In this case, the disc insertion regulating member is
When the floating lock mechanism is not operated, the displacement portion is in the first position, and when the floating lock mechanism is activated, the displacement portion is retracted to the second position, thereby operating the floating lock mechanism to load the disc. When performing an action or an eject action,
The disc can be inserted / ejected from the disc entry / exit opening without any problem. On the other hand, in the state where the floating lock mechanism is not operated and the traverse base is supported in a floating manner, it is possible to reliably prevent the insertion of another disc from the disc loading / unloading opening.

The invention according to claim 2 of the present application (hereinafter,
In the first invention, the displacing portion of the disc insertion restricting member is
It is characterized in that it is located on the front side of substantially the center of the disc loading / unloading opening. In this case, unlike the conventional case in which such a disc insertion restriction stopper member is provided in the vicinity of the end of the disc loading / unloading opening, the disc device does not project forward and increase in size.

Further, the invention according to claim 3 of the present application (hereinafter,
In the first or second invention, the outer edge portion of the disc inserted when the displacement portion is in the first position is the side edge portion of the displacement portion. The present invention is characterized in that a locking portion that can be locked and a guide inclined portion that guides the outer edge portion of the disk toward the locking portion are provided. In this case, even when another disc (especially a disc having a small diameter) is inserted from a direction biased with respect to the center of the disc loading / unloading opening while the displacement portion of the disc insertion restricting member is at the first position. The outer edge portion of the other disk is guided and locked by the locking portion by the guide inclined portion provided on the side edge portion of the displacement portion, and further insertion operation is blocked.

Further, the invention according to claim 4 of the present application
(Hereinafter, referred to as a fourth invention) is, in any one of the first to third inventions, provided with a biasing means for biasing the displacement portion of the disc insertion restricting member toward the first position. The displacement portion is displaced from the first position to the second position against the urging force of the urging means in response to a locking operation of locking the traverse base by the floating lock mechanism. It is what in this case,
With a comparatively simple structure of providing only biasing means, the displacement portion of the disc insertion restricting member is maintained at the first position when the floating lock mechanism is not operated, and the floating lock mechanism is locked by the locking operation. The displacement portion is displaced from the first position to the second position.

Further, the invention according to claim 5 of the present application
(Hereinafter, referred to as a fifth invention), in the fourth invention, the floating support mechanism supports the traverse base in a floating manner with respect to the apparatus frame at least in a direction substantially orthogonal to the disc loading / unloading direction. A plurality of floating springs for urging the device in at least the above-mentioned direction, and in the state where the disc insertion restricting member and the urging means are attached to the apparatus frame, the floating spring should be located at a position closest to the attachment portion. Is characterized by being removed. In this case, when the biasing means for biasing the displacement portion of the disc insertion restricting member to the first position side is optimally set and attached to the apparatus frame, the floating spring causes the traverse base to move in a direction substantially orthogonal to the disc loading / unloading direction. The spring which should be located closest to the mounting portion of the biasing means is removed from the plurality of floating springs and is also used as the biasing means.

Further, the invention according to claim 6 of the present application
(Hereinafter, referred to as a sixth invention) is that in any one of the first to fifth inventions, the mounting portion of the disc insertion restricting member is detachably attached to the device frame. It is a feature. In this case, the disc insertion restricting member can be relatively easily removed from the device base when unnecessary.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the accompanying drawings, taking a case of a horizontal type disk device for use in a vehicle as an example. 1 is an overall perspective view showing an assembled state of a disk device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the disk device, and FIGS. 3 and 4 are plan explanatory views and bottom views of the disk device. It is a figure. As shown in these drawings, the disk device 1 includes a device frame 10 formed in a substantially rectangular frame shape, a traverse base 20 formed in a substantially rectangular flat plate shape, a clamper arm 31 having a substantially triangular flat plate shape, and a roughly triangular plate shape. The clamper mechanism 30 includes a clamper plate 32 having a rectangular frame shape.

The disc device 1 is for reproducing information recorded on a disc 50 as an information recording medium such as a CD or a DVD and / or recording information on the disc. When the disk is inserted (retracted) into the apparatus 1 from the outside, the disk 50 moves in the direction of the arrow shown in FIGS. In the present embodiment, the side provided with the disk loading / unloading opening 21 for loading / unloading (inserting / discharging) the disk 50 into / from the apparatus 1 is referred to as the front side of the disk apparatus 1, and the side of the disk 50. Left and right sides in the insertion direction (arrow directions in FIGS. 1 and 3) are referred to as left and right sides of the disk device 1.

The traverse base 20 is a base member on which most of the drive mechanism of the apparatus 1 is mounted, and is assembled in the inner opening 10H of the apparatus frame 10. As shown in FIG. 2, a plurality of (three) floating mechanisms 7 formed by combining a floating damper 8 and a coil spring 9 are provided between the device frame 10 and the traverse base 20 in order to absorb vibrations. Each is installed. These floating mechanisms 7 are arranged on three floating receiving portions 11 provided in the inner opening 10H of the device base 10. The plurality of floating mechanisms 7 constitute a "floating support mechanism" described in the claims of the present application. The floating mechanism 7 is known, and as the floating damper 8, for example, the liquid-filled damper disclosed in the above-mentioned Japanese Utility Model Publication No. 7-16123 can be preferably used.

By adopting the above configuration,
With respect to at least one direction (at least with respect to the up-down direction, that is, with respect to the direction orthogonal to the turntable 41 described later), and more preferably with respect to the front-back and left-right horizontal directions, the traverse base 20 is fixed to the device frame 10 within a certain range. It can be supported in a floating state (floating state). This allows
Vibration input from the device frame 10 to the traverse base 20 can be effectively absorbed. In the present embodiment, the traverse base 20 is
For example, it is set so as to be floatingly supported within a range of ± 2.5 mm in the vertical direction and ± 2.5 mm in each of the front-rear direction and the lateral direction.

In the disk device 1 having the floating mechanism 7, the traverse base 20 is maintained in the floating support state when the disk 50 is mounted on the turntable 41 (for example, when the disk is reproduced). Particularly, in the case of the vehicle-mounted disc device 1, it is possible to prevent the vibration applied to the vehicle body during traveling of the vehicle from being directly input to the traverse base 20 from the device frame 10 fixed to the vehicle body, thereby preventing the internal parts and the disc from being discriminated. Fifty
In order to protect the
Is essential.

A turntable 41 capable of supporting and rotating the disc 50 and a motor 42 for driving the turntable 41 (first motor: see FIG. 4) are arranged at a substantially central portion of the traverse base 20. The traverse base 20 has a pickup 43 (see FIG. 3) for reproducing information recorded on the disc 50 and / or recording information on the disc 50 in the radial direction of the turntable 41. The groove 44 is formed along the groove 44 and is movably held along the groove 44.

On the other hand, the disk 50 is inserted into and ejected from (inserted in / out of) the apparatus 1 at the front portion of the traverse base 20.
A groove-shaped disc slot 21 is formed as a disc loading / unloading opening for loading / unloading. Further, a roller 22 (see FIGS. 3 and 4) as a transfer means for transferring the disk 50 between the disk slot 21 and the turntable 23 is disposed slightly behind the disk slot 21. The roller 22 is made of an elastic material such as rubber or soft resin, and rotates with the disk sandwiched between the roller 22 and a flat disk-shaped disk guide 23, thereby rotating the disk 50. Is to be transferred.

Rear end projection 2 of the traverse base 20
The rear end hole 31h of the clamper arm 31 is fitted to 0s, and the clamper arm 31 is attached to the traverse base 20 so as to be vertically rotatable around the rear end thereof. A clamper 33 is provided on the front end portion of the clamper arm 31 via a clamper holding plate 34. The clamper 33 is for pressing the disk 50 on the turntable 41 onto the turntable 41.

A spring (not shown) for constantly urging the clamper arm 31 downward is incorporated in the pivotal support portion of the clamper arm 31, and the urging force of this spring causes the clamper arm 31 and the clamper holding plate 34 to intervene. The clamper 33 to the turntable 41 side (that is,
(Downward).

Above the clamper arm 31, the clamper 33, and the clamper holding plate 34, a clamper plate 32 for restricting the amount of upward movement of the clamper 33 is arranged. The clamper plate 32 has a rear end portion of the device frame 1
It is engaged with the rear end vertical wall of 0 and is fixed. Further, on the back surface side of the traverse base 20, a flat plate-shaped control board 2 (see FIG. 4) on which a large number of control circuits are mounted is attached in order to drive and control the disk device 1. Note that the above-described configuration is disclosed in, for example, the above-mentioned JP-A-2000-298.
As disclosed in Japanese Patent No. 903, it is a conventionally known one.

The disk device 1 includes a drive motor 51 (second motor) capable of forward and reverse rotation operations, and the second motor 5
The motor gear train 52 that transmits the output of No. 1 is provided.
Further, the disk device 1 has a conventionally well-known configuration similar to the above, and therefore is not specifically shown, but the disk 5
The disk gear train for rotating the roller 22 to transfer 0, and the pickup 43 for the disk 5
And a pick-up gear train for moving in the radial direction of 0. Further, a drive switching mechanism is provided for switching the transmission path of the output of the second motor 51 transmitted via the motor gear train between the disc gear train and the pickup gear train.

When the second motor 51 rotates in the normal direction, the disc gear train rotationally drives the roller 22 so as to transfer the disc 50 in the insertion direction, and the pickup gear train drives the pickup 43 in the disc radial direction. Move it outward. On the other hand, when the second motor 51 rotates in the reverse direction, the disc gear train rotationally drives the roller 22 so as to transfer the disc 50 in the ejecting direction, and the pickup gear train moves the pickup 43 inward in the disc radial direction. Each gear train is set so that the A roller gear is integrally fixed to one end of the roller 22, and the roller 22 is rotated by driving the roller gear by a disc gear train.

In the disc device 1, the disc 50 transferred in the inserting direction is at the reproduction position (the turntable 41).
The slider 61 is provided on one side surface (left side surface) of the traverse base 20 when the slider 61 starts to move in the disc ejection direction when reaching the upper side. A rack (not shown) is attached to the inside of the slider 61, and the rack is engaged with a disk gear train to be driven, so that the slider 61 is moved along the side surface of the traverse base 20 in the front-back direction of the apparatus 1. To move to. A trigger lever 56 (see FIGS. 1 and 3) that detects that the disc 50 has reached the reproduction position and starts moving the slider 61 is attached to the rear portion of the clamper arm 31, for example.

The above-described structure and the operation based on it are the same as those disclosed in the above-mentioned Japanese Patent Laid-Open No. 2000-298903 and do not form the gist of the present invention. Detailed illustration and operation description of specific structures such as the gear train and the drive switching mechanism are omitted.

Next, a description will be given of the floating lock mechanism of the disc device 1 and a configuration for preventing the insertion operation of another disc in the disc mounted state by utilizing this mechanism. As described above, in the disc device 1 according to the present embodiment, the traverse base 20 is supported by the device frame 10 via the floating mechanism 7, and the disc 50 is mounted on the turntable 41 when the disc is reproduced. In this state, the apparatus frame 10 is supported in a floating state within a certain range (floating state).

On the other hand, the disk 50 is replaced by the disk slot 2
1 is inserted into the apparatus 1 and set on the turntable 41, or when the eject operation of ejecting the disk 50 on the turntable 41 from the disk slot 21 to the outside of the apparatus 1 is performed, 20 is held and locked in place, and
A transfer means for transferring the disk 50 is located at a position where the transfer can be performed.

For this reason, the disk device 1 is provided with a floating lock mechanism for locking the traverse base 20 at a lower position in the floating range by the floating mechanism 7, and during the loading operation and the eject operation of the disk 50, the floating lock mechanism is provided. The lock mechanism is activated to keep the traverse base 20 in the locked position.

An outline of such a floating lock mechanism will be described below, but it is basically a conventionally known one. 5 and 6 are side explanatory views showing a floating lock mechanism provided on the left side surface of the traverse base 20, and specifically, the slider 61 that moves in the front-back direction of the apparatus 1 by the transfer of the disk 50. And the movement of the roller 22 associated therewith. FIG. 5 shows the slider 61 and the roller 2 in the floating state.
2 and FIG. 6 shows the positions of the slider 61 and the roller 22 in the floating lock state.

As shown in these figures, the slider 6 is
A cam portion 62 having a cam groove 62g is provided on the front portion (right side portion in FIGS. 5 and 6) of FIG.
An urging plate 63 (a left urging plate) is arranged on the front side of 2. The left side urging plate 63 cooperates with another urging plate 65 (right side urging plate: see FIGS. 7 and 8 to be described later) arranged along the right side surface of the traverse base 20 to cooperate with the roller 22. Disc guide 2
It urges toward 3.

The left biasing plate 63 is engaged with the cam portion 62 of the slider 61 by the engagement pin 63p engaging with the cam groove 62g of the cam portion 62,
A pivoting operation is performed around the pivot shaft 63s. A left pivot shaft 63s of a roller arm 64 is supported on the left biasing plate 63. The roller arm 64 holds the roller 22, and includes the left and right urging plates 63, 65.
By applying a biasing force to this roller arm 64,
The roller 22 is biased toward the disc guide 23. The left and right urging plates 63, 65 are rotated upward by the urging force of a spring (not shown) (that is, the roller 22 is urged toward the disc guide 23 by the roller arm 64). Always energized.

The slider 61 is located between the device base 10 and the clamper plate 32, and moves back and forth between the two devices 10 and 32. A pair of front and rear protrusions 61a and 61b are provided on the upper part of the slider 61, while a pair of front and rear recesses 32a and 32b recessed downward are formed in a portion of the clamper plate 32 corresponding to the slider 61. Has been done. The distance between the recesses 32a and 32b and the distance between the protrusions 61a and 61b of the slider 61 are set to be equal. In addition, these protrusions 61a,
A taper portion having a predetermined angle is formed on the front and rear portions of the recess 61a and the recessed portions 32a and 32b so that they can be smoothly engaged with each other.

Then, as the slider 61 moves in the front-rear direction, as shown in FIG.
1a, 61b and the depressions 32a, 32b of the clamper plate 32
When the projections 61a and 61b ride on and engage with the recesses 32a and 32b, the slider 61 is pressed downward, and the traverse base 20 moves along with the floating mechanism. It will be locked in the lower position against the biasing force of 7. In other words, the floating lock mechanism works and the traverse base 20
Will be locked in the lower position in the floating range.

On the other hand, FIGS. 7 and 8 show a floating lock mechanism provided on the right side surface of the traverse base 20. FIG. 7 shows the floating lock mechanism in the floating state, and FIG. 8 shows the floating lock mechanism in the locked state. As shown in these drawings, the right side biasing plate 65 described above is attached to the right side surface of the traverse base 20. The right side biasing plate 65 is the left side biasing plate 6
It is driven to rotate via the roller arm 64 in accordance with the rotating operation of 3, and rotates about the pivot shaft 65s.

A rotating plate 67 pivotally supported by a pivot shaft 67s is disposed behind the right biasing plate 65. The rotating plate 67 and the right-side urging plate 65 are rotatably connected by a connecting plate 66, and the right-side urging plate 65, the connecting plate 66, and the rotating plate 67 constitute a kind of link mechanism. Has been done.

That is, when the right biasing plate 65 is rotated clockwise from the floating state shown in FIG. 7 (see FIG. 8), the connecting plate 6
6 moves backward, and accordingly, the rotating plate 67 rotates clockwise in the drawing. As a result, the tip projection portion 67a of the rotating plate 67 abuts the lower surface of the clamper plate 32, and the connecting plate 66 and the right biasing plate 65 are formed.
Is locked in the down position. In other words, floating
It will be locked.

As described above, in this floating locked state, the traverse base 20 is locked at the lower position in the vertical floating range against the biasing force of the floating mechanism 7 and is stable. The locked state is obtained. Further, in this state, the roller 22 is at a position moved upward from the position in the floating state (that is, a position where the disc transfer operation is possible), and is biased toward the disc guide 23 via the roller arm 64. There is.

The pivot shaft 65s of the right biasing plate 65
A rotation restricting portion 10d that is integrally provided with the device base 10 is located behind the device. On the other hand, a claw portion 65d is formed on the rear portion of the right urging plate 65, and when the right urging plate 65 is rotated in the clockwise direction in the drawing, the claw portion 65d is moved by the rotation restricting portion 10d. By contacting with, the further rotational movement is restricted. Also,
The counterclockwise rotation of the right-side urging plate 65 above a certain level is restricted by the upper portion of the connecting plate 66 contacting the lower surface of the front end of the clamper plate 32.

As described above, the slider 61 having the cam portion 62, the left biasing plate 63, and the clamper plate 32 are provided.
And the lower surface of the right biasing plate 65, the connecting plate 66 and the rotating plate 67, and the clamper plate 32 constitute the main part of the right floating lock mechanism. is doing. The left and right floating lock mechanisms and the roller arm 64 that connects the left and right floating lock mechanisms together constitute a main part of the floating lock mechanism.

The floating structure constructed as described above
An example of the operation of the lock mechanism will be described. In this description, as shown in FIGS. 6 and 8, the floating lock mechanism operates so that the traverse base 20 is locked at the lower position (the lowermost position in the present embodiment) in the floating range, and The state in which the disc 50 is not mounted on the turntable 41 is the reference state.

In this reference state, when the disk 50 is inserted, a detection sensor (not shown) composed of, for example, an optical sensor detects this disk insertion operation, and the detection signal causes the second motor 51 to rotate normally. Driven to rotate. The output of the second motor 51 is the motor gear train 52.
To the disk gear train (both not shown) via the drive switching mechanism. Then, as a result of the roller gear (not shown) being rotationally driven by this disc gear train, the roller 22 is rotationally driven in the forward rotation direction (counterclockwise direction in FIGS. 5 and 6 / clockwise direction in FIGS. 7 and 8). .

In this state, since the traverse base 20 is in the lock position, as described above, the roller 22 is in the position moved upward from the position in the floating state (that is, the position where the disc transfer operation can be performed). It is biased toward the disc guide 23 via the roller arm 64. Therefore, the inserted disc 50 is transferred to the reproduction position above the turntable 41 by the rotation of the roller 22 in the forward rotation direction while being pressed against the disc guide 23 by the roller 22.

When the disc 50 transferred in the inserting direction reaches the reproducing position (on the turntable 41), the disc 50 pushes the trigger lever 56 backward, so that the trigger lever 56 is rotated. Move.
As a result, the rack of the slider 61 meshes with the disc gear train (both not shown), and the slider 61 starts moving in the disc ejection direction (right direction in FIGS. 5 and 6 / left direction in FIGS. 7 and 8). .

The upper portion of the slider 61 is in contact with the lower surface of the clamper arm 31 and is capable of supporting the convex portion 61.
c (see FIGS. 5 and 6) are provided. Slider 6
1 starts moving in the disc ejection direction,
The support of the clamper arm 31 by the slider 61 is released, and the clamper arm 31 is urged downward by the urging force of a spring (not shown). As a result, the clamper 33 presses the disc 50 at the reproducing position against the turntable 41. It is supposed to do.

When the slider 61 further moves in the disc ejecting direction, the engaging pin 63p of the left biasing plate 63 moves upward along the cam groove 62g formed in the cam portion 62 of the slider 61, resulting in the left biasing. The plate 63 rotates about the pivot shaft 63s in the clockwise direction in FIGS. 5 and 6. As a result, the left pivot shaft 64s of the roller arm 64 moves downward and the roller arm 6
4 rotates about the left and right pivot shafts 64s and 64r, and the roller 22 is moved downward.

As a result, the roller 22 is separated from the disc 50, and the disc 50 is placed on the turntable 41 and supported by the turntable 41 in a rotatable state. Further, along with the operation of the slider 61 and the left-side biasing plate 63 as described above, the protrusions 61 a and 61 b of the slider 61 and the recess 32 of the clamper plate 32.
The engagement state with a and 32b is released. That is, the floating lock mechanism on the left side is the traverse base 20.
Will be unlocked.

On the other hand, as shown in FIGS. 7 and 8, in the right side floating lock mechanism, the roller arm 6 is used.
The right urging plate 65 rotates in the counterclockwise direction in FIG. The connecting plate 66 moves forward, whereby the rotating plate 67 is rotated counterclockwise. As a result, the contact state between the tip projection portion 67a of the rotating plate 67 and the lower surface of the clamper plate 32 is released. That is, the floating lock mechanism on the right side releases the locked state of the traverse base 20.

As described above, the left and right floating
As a result of the lock mechanism releasing the locked state of the traverse base 20, the traverse base 20 is in the floating state by the action of the floating mechanism 7.
Will be supported above.

As the slider 61 moves in the disc ejecting direction and the disc 50 is placed on the turntable 41 in a rotatable state, the drive switching mechanism (not shown) is switched by the movement of the slider 61. It is operated and the motor gear train 52 is a pickup gear train (not shown).
Will come to mesh with. As a result, the output of the second motor 51 is transmitted to the pickup 43, and the pickup 43 is driven.

Although the above description has been concerned with the loading operation of the disc 50, during the disc ejecting operation, the eject
By operating the buttons, the respective constituent elements perform the reverse operation of the loading operation described above.
The disk 50 above 1 is ejected and ejected toward the outside of the apparatus 1.

By the way, in the present embodiment, by utilizing the above-mentioned floating lock mechanism, for example, when the disc is reproduced, the disc 5 is placed on the turntable 41.
With 0 set, another disc is prevented from being inserted further. That is, as can be seen clearly from FIGS. 1 and 2, a stopper lever 71 is arranged on the front surface of the disc device 1 in order to restrict the insertion of another disc in the above case. The stopper lever 71 is attached to the front vertical wall 12 of the device frame 10 via an attachment shaft 72.

As shown in detail in FIG. 11, the stopper lever 71 is manufactured by pressing a steel plate, for example, and has a mounting base portion 71b and a stopper portion 71c at both ends of a substantially flat plate-shaped lever body 71a. Are formed. Then, by fitting the mounting shaft 72 into the mounting hole 71h provided in the mounting base 71b, the mounting shaft 72 is rotatably supported about the mounting shaft 72.

The mounting shaft 72 has a retaining ring 74,
A spring member 73 (lever biasing spring) is attached together with 75. Then, the hole portion 1 formed in the front vertical wall 12
The mounting shaft 72 is mounted on the front vertical wall 12 by fitting the shaft tip portion into 2h. In this way, the stopper lever 71 causes the front vertical wall 12 of the device frame 10 to move.
In addition, it is rotatably attached along the vertical wall 12 in the vertical direction (that is, in the direction substantially orthogonal to the disc insertion / ejection direction).

Stopper portion 71 of the stopper lever 71
The c is pressed so that it is located slightly in front of the lever body 71a. On the other hand, in the mounting base 71b,
Overhanging portion 71 overhanging behind the lever body 71a
d are arranged in a row. Then, as shown in FIGS. 9 and 10, when the stopper lever 71 is attached to the front vertical wall 12, the stopper portion 71c is located slightly forward of the front vertical wall 12, and the protruding portion 71d is located on the front side. Vertical wall 12
It is configured to project to the rear side more than.

The lever urging spring 73 is set so as to always urge the lever body 71a in a direction to rotate upward, and depending on the operating state of the floating lock mechanism of the traverse base 20, The stopper portion 71c of the stopper lever 71 is configured to be displaced between a first position located on the front side of the disk slot 21 and a second position retracted from the front side of the disk slot 21. The stopper lever 71 and the stopper portion 71c correspond to the "disk insertion restricting member" and the "displacement portion", respectively.

That is, as can be seen from FIG.
When the traverse base 20 is supported in a floating state with respect to the device base 10, the stopper lever 71 is urged by the lever urging spring 73 so that the upper surface of the protruding portion 71d of the mounting base portion 71b is the vertical front surface of the device base 10. It is located at the upper limit position where it rotates until it abuts the lower surface of the wall 12.

In this state, the stopper portion 71c of the stopper lever 71 is in the first position (that is, the disk slot 2).
1 front position). Therefore, for example, when the disc is reproduced, the disc 50 is mounted on the turntable 41, and the traverse base 20 is attached to the device base 1.
When the disk is supported in a floating state with respect to 0 (that is, when the floating lock mechanism is not operated), the stopper portion 71c reliably prevents another disk from being further inserted from the disk slot 21. To be done.

The length of the stopper lever 71 is
The stopper portion 71c at the tip of the disk slot 21
At the first position located on the front side of the disk slot 21, the disk slot 21 is set to be located on the front side in the approximate center.
As a result, unlike the conventional case where such a disc insertion restricting stopper member is provided in the vicinity of the end of the disc loading / unloading opening, the disc device does not extend forward and becomes large in size, and the disc mounting is relatively space-saving. It is possible to prevent the insertion of another disc in the state.

On the other hand, as can be seen from FIG. 13, when the floating lock mechanism is operated during the loading operation or the eject operation of the disk 50, the traverse base 20 is moved to the lower position in the vertical floating range. When locked, the protruding portion 71d of the stopper lever 71 is pushed by the downward movement of the traverse base 20, and the stopper lever 71 rotates downward against the urging force of the lever urging spring 73. To be made. As a result, the stopper portion 71c is located at the second position (the position retracted from the front side of the disk slot 21).

That is, the protruding portion 71d of the stopper lever 71 is provided with a rising portion 71f that rises upward, and this rising portion 71f is about the center of the mounting shaft 72, which is the rotation center of the lever 71.
1a and the same side as the stopper portion 71c (left side in the figure)
Is located in. When the traverse base 20 descends to the lock position, the lower surface of the traverse base 20 becomes the rising portion 71.
f will be pushed down. As a result, the stopper lever 71 rotates downward about the mounting shaft 72, and accordingly, the stopper portion 71c also rotates in the same direction and is positioned at the second position. . That is, the stopper portion 71c of the stopper lever 71 is retracted from the front side of the disk slot 21.

Therefore, when the floating lock mechanism is operated to perform the loading operation or the ejecting operation of the disk 50, the disk 50 can be inserted or ejected from the disk slot 21 without any trouble. As described above, with the relatively simple structure of attaching the stopper lever 71 to the apparatus frame 10, and at a low cost, another disk is further inserted while the disk 50 is mounted on the turntable 41, It is possible to effectively prevent a problem such as damage to the disk.

Particularly, in this embodiment, a lever urging spring 73 for urging the stopper lever 71 to urge the stopper portion 71c toward the first position is provided, and the floating lock mechanism is used for the traverse base 20. The stopper portion 71c is configured to be displaced from the first position to the second position against the urging force of the urging spring 73 in accordance with the locking operation of locking the urn to the lower position.

That is, with a relatively simple construction in which the biasing spring 73 is provided, the stopper portion 71c of the stopper lever 71 can be maintained at the first position when the floating lock mechanism is inactive, and the floating portion is also floating. The stopper portion 71c can be displaced from the first position to the second position by utilizing the lock operation of the lock mechanism.

Moreover, since the mounting shaft 72 of the stopper lever 71 is only fitted into the hole 12h provided in the front vertical wall 12 of the apparatus frame 10, the mounting shaft 72 is removed from this hole 12h. By removing the stopper lever 71, the stopper lever 71 can be easily removed and removed from the front vertical wall 12 of the apparatus frame 10. That is, the stopper lever 71 is detachably attached to the apparatus frame 10.

Therefore, in practice, it is almost impossible to expect that another disc will be further inserted during disc reproduction, for example, when the disc device 1 is mainly used for navigation, and the necessity of the stopper lever 71 is first of all. In the case where there is none, it is possible to easily avoid unnecessary unnecessary equipment from being shipped and used in the state of being attached.

As described above, each floating mechanism 7 of the traverse base 20 is at least in the vertical direction, that is, the direction orthogonal to the turntable 41 (in other words, the direction substantially orthogonal to the disc insertion / ejection direction). ), The traverse base 20 is floatingly supported within a certain range with respect to the apparatus frame 10, and the coil spring 9 of each floating mechanism 7 is set so as to bias the traverse base 20 at least in the vertical direction. There is. On the other hand, the lever urging spring 73 is rotatable in the vertical direction (that is, in the direction substantially orthogonal to the disc insertion / ejection direction).
By urging 1, the stopper portion 71c
It is urged toward the position (that is, the position on the front side of the disk slot 21), and specifically, is always the lever main body 71a.
Is set so as to be biased in the direction of rotating upward.

Therefore, by properly setting the lever urging spring 73, the coil spring 9 of the floating mechanism 7 can also be urged to urge the traverse base 20 upward. That is,
When the traverse base 20 descends to a predetermined position within the floating range of the floating mechanism 7, the traverse base 20 contacts the rising portion 71f of the stopper lever 71. When the descent is further continued, the lever urging spring 73
Will urge it upwards.

By properly setting the vertical position at which the traverse base 20 starts to receive the biasing force of the lever biasing spring 73 and the spring characteristics of the lever biasing spring 73, the lever biasing spring 73 is The coil spring 9 of the floating mechanism 7 can also exert an urging action of urging the traverse base 20 upward.

In this case, in order to prevent the stopper portion 71c of the stopper lever 71 from being vertically displaced in the normal floating support state, the traverse base 20 is prevented.
It is more preferable that the upper and lower positions at which the urging force starts to receive the urging force of the lever urging spring 73 be lower than the center position of the floating range by the floating mechanism 7 by a predetermined amount. Further, it is more preferable that the spring characteristic of the lever urging spring 73 is set to be equal to the characteristic of the coil spring 9 of the floating mechanism 7 at least in the range of exerting the urging force on the traverse base 20.

When the spring characteristic of the lever urging spring 73 and the vertical position where the urging force starts to be exerted on the traverse base 20 are appropriately set, the lever urging spring 73 of the coil springs 9 of the plurality of floating 7 is set. The spring 9 that should be located closest to the mounting portion, that is, the coil spring 9 that should be mounted near the front left end of the device frame 10, can be eliminated, and the lever urging spring 73 can also be used. In this case, the number of parts of the disk device 1 can be reduced, which contributes to simplification of the structure and reduction of manufacturing cost.

In the disc device 1 described above, for example, the stopper portion 7 of the stopper lever 71 is being reproduced during disc reproduction.
1c is in the first position (the position on the front side of the disk slot 21), the other disk is biased with respect to the center of the disk slot 21, particularly the direction of the rotation fulcrum (mounting shaft 72) of the stopper lever 71. When it is inserted from a position that is biased toward, the stopper lever 71 is pushed down by the insertion disc depending on the insertion method, and the stopper portion 71c is inadvertently moved to the second position (disc slot 2 above).
The front side of 1 may be displaced toward a position retracted).

As is well known, there are two kinds of commercially available discs, which are large and small (diameter size 8).
cm and 12 cm), but especially small diameter (8c
It has been found that when the disk of m) is inserted from the biased direction as described above, the rotating operation of the stopper lever 71 which causes the displacement of the stopper portion 71c as described above is relatively likely to occur. This problem can be solved by devising the shape of the stopper portion 71c.

Next, a modified example of the stopper portion according to the embodiment of the present invention will be described. In the following description, components having the same configurations as those in the embodiment shown in FIGS. 1 to 13 and having similar functions are designated by the same reference numerals, and further description will be omitted. FIG. 14 is an exploded perspective view showing a mounted state of a stopper lever having a stopper portion according to the above modification. Further, FIG. 15 is a front explanatory view of a stopper portion according to the modified example. As shown in these drawings, in the stopper portion 81 according to the present modification, the stopper portion 81 has the first stopper portion 81 at the side edge portion on the side closer to the mounting shaft 72.
A disc locking portion 82 capable of locking the outer edge portion of the disc 80 that has been inserted when in the position, and the disc 80.
And an inclined guide portion 83 for guiding the outer edge portion of the disc toward the disc locking portion 82.

The guide inclined portion 83 is formed in a so-called reverse taper shape so as to approach the other side edge portion as it goes downward from the upper portion of one side edge portion of the stopper portion 81.
The disk engaging portion 82 is formed by the terminal end portion of the reverse taper-shaped guide inclined portion 83 and the upper surface of the lever main body 71a of the stopper lever 71. The stopper 81
Is in the first position, another disk 80 (especially a disk with a small diameter) is biased to the center of the disk slot 21, particularly in the direction of the rotation fulcrum (mounting shaft 72) of the stopper lever 71. When the disc 80 is inserted from an eccentric position, the outer edge portion of the other disc 80 is guided to the disc engaging portion 82 by the guide inclined portion 83 provided on the side edge portion of the stopper portion 81, and the disc engaging portion 82 is inserted. It is locked by the stopper 82 and further insertion operation is blocked.

As described above, the stopper portion 8 according to the present modified example.
Even if another disk 80 (especially, a disk having a small diameter) is inserted from a position biased with respect to the center of the disk slot 21, the outer edge portion of the other disk 80 is locked by providing the disk 1. It can be locked by the portion 82 and further insertion operation can be prevented, and the reliability of the erroneous insertion prevention of the disc 80 by the stopper portion 81 can be further enhanced. It is also possible to provide the locking portion and the guide inclined portion as described above on both side edge portions of the stopper portion 81. In this case, another disc 80 is inserted from the direction biased to the opposite side to the above. Even in the case where the disc is inserted, the reliability of preventing the erroneous insertion of the disc can be improved.

Next, another embodiment of the present invention will be described. In the following description, components having the same configurations as those in the embodiment shown in FIGS. 1 to 13 and having similar functions are designated by the same reference numerals, and further description will be omitted. FIG. 16 is a partial cross-sectional explanatory view schematically showing a front portion of a disc device including a disc insertion restricting member according to another embodiment of the present invention. As shown in this figure, the disc device 91 according to the present embodiment includes a stopper arm 93 having a substantially L-shaped cross section as a disc insertion restricting member for restricting the insertion of another disc in the disc mounted state. There is.

The stopper arm 93 has an arm body 93 having an attachment base portion 93b for attaching to the apparatus frame 92 at its end portion.
a and a stopper portion 93c formed by bending the arm body 93a at the other end at a substantially right angle. A protrusion 93f that protrudes upward is formed in the middle of the arm body 93a. In addition, the stopper arm 9
No. 3 is obtained by pressing a thin plate-shaped spring steel, and itself acts as a plate spring.

This stopper arm 93 is attached to the apparatus frame 9
2 is attached to the mounting base 9 of the arm body 93a.
3b is attached to the lower surface side of the device frame 92 using attachment screws 94. Therefore, when the stopper arm 93 is unnecessary, the stopper arm 93 can be removed extremely easily by screwing off the mounting screw 94. Alternatively, the mounting base 93b of the arm body 93a may be joined to the lower surface of the device frame 92 by spot welding or the like. In this case, the mounting screw 9 is used.
As compared with the case of using No. 4, it becomes difficult to remove.

The traverse base 20 is supported by the apparatus frame 92 via the floating mechanism 7, as in the above-described embodiment. When the traverse base 20 is supported in a floating state with respect to the device base 92, as shown by the solid line in FIG. 16, the stopper arm 93 attached to the device frame 92 as described above receives an external force. There is no particular action, and the arm body 93a is in a state of being substantially in contact with the lower surface of the device base 92.

In this state, the stopper portion 93c of the stopper arm 93 is in the first position (that is, the disk slot 2).
1 front position). Therefore, for example, when the disc is reproduced, the disc 50 is mounted on the turntable 41, and the traverse base 20 is used as the device base 9.
When the disk 2 is supported in a floating state (that is, when the floating lock mechanism is not operated), the stopper portion 93c reliably prevents another disk from being further inserted from the disk slot 21. To be done.

At this time, the stopper arm 93
More preferably, the stopper portion 93c is set so as to be located on the front side substantially at the center of the disk slot 21 at the first position located on the front side of the disk slot 21. Therefore, as in the case of the above-described embodiment, it is possible to prevent the insertion of another disc in the disc mounted state with a comparatively small space.

On the other hand, as indicated by the broken line in FIG. 16, the traverse base 20 is moved to the lower position in the vertical floating range by operating the floating lock mechanism at the time of loading or ejecting the disc. When it is locked to, the protruding portion 93f of the stopper arm 93 is pushed by the downward movement of the traverse base 20, thereby resisting the biasing force of the stopper arm 93 itself as a leaf spring to move the mounting base portion 93b. Stopper 93c as a fulcrum
Is rotated downward.

That is, the stopper portion 93c is displaced in a direction substantially orthogonal to the disc loading / unloading direction. As a result, the stopper portion 93c moves to the second position (disk slot 2
1 is a position retracted from the front side). Therefore, when the floating lock mechanism is operated to perform the loading or ejecting operation of the disc, the disc can be inserted or ejected from the disc slot 21 without any trouble.

As described above, with the relatively simple structure in which the stopper arm 93 is attached to the apparatus frame 92, and at a low cost, the other disk is further mounted while the disk 50 is mounted on the turntable 41. Inserted,
It is possible to effectively prevent a problem such as damage to the disk.

Particularly, in this embodiment, since the stopper arm 93 itself is a leaf spring, the stopper portion 93c is formed in the first position.
It is not necessary to separately provide a biasing spring that biases the position side,
It is possible to further simplify the structure. That is, the stopper portion 93c of the stopper arm 93 can be maintained at the first position when the floating lock mechanism is not operated without the need to separately provide a biasing spring, and the floating lock mechanism can be locked. Utilizing this, the stopper portion 93c can be displaced from the first position to the second position.

Although the above-mentioned embodiments are all related to the horizontal type disk device, the present invention is
The present invention is not limited to this case, and can be effectively applied to a so-called vertical type disk device. As described above, the present invention is not limited to the above embodiments, and within the scope of the gist thereof,
It goes without saying that various improvements and design changes are possible.

[0098]

According to the first aspect of the present invention, the displacing portion of the disc insertion restricting member has a displacing portion which is displaceable in a direction substantially orthogonal to the disc loading / unloading direction with the mounting portion to the apparatus frame as a fulcrum. Depending on the operating state of the floating lock mechanism, the floating lock mechanism is displaced between a first position located on the front side of the disk loading / unloading opening and a second position retracted from the first position. Therefore, by setting the disc insertion restricting member such that the displacement portion is at the first position when the floating lock mechanism is not activated and the displacement portion is retracted to the second position when the floating lock mechanism is activated, When the lock mechanism is operated to perform the loading or ejecting operation of the disc, the disc can be inserted and ejected without any trouble from the disc loading / unloading opening, while the floating lock mechanism is not activated and the traverse base is supported in a floating manner. In this state, it is possible to reliably prevent another disc from being inserted through the disc loading / unloading opening by the displacement portion of the disc loading / unloading member. That is, with a relatively simple structure in which the disc insertion restricting member is simply attached to the device frame, and at a low cost, another disc is further inserted while the disc is mounted on the turntable, and the disc is damaged, etc. It is possible to effectively prevent the occurrence of the problem.

According to the second invention of the present application, basically, the same effect as that of the first invention can be obtained. Particularly, since the displacement portion of the disc insertion restricting member is located substantially in front of the center of the disc inserting / ejecting opening at the first position located on the front side of the disc inserting / ejecting opening, a stopper for disc insertion restricting is conventionally used. Unlike the case where the member is provided in the vicinity of the end of the disc loading / unloading opening, the disc device does not extend forward and becomes large in size, and it is possible to prevent the insertion of another disc in a disc mounted state with a relatively small space. it can.

Further, according to the third invention of the present application, basically, the same effect as that of the first or second invention can be obtained. Particularly, the side edge portion of the displacement portion includes a locking portion capable of locking the outer edge portion of the disk inserted when the displacement portion is in the first position, and the outer edge portion of the disc. Since the guide inclined portion for guiding toward the locking portion is provided, another disc (especially, a disc having a small diameter) is provided with the displacement portion of the disc insertion restricting member in the first position.
Even when the disc is inserted from a direction biased with respect to the center of the disc entry / exit opening, the outer edge of the other disc is
The guide inclined portion provided on the side edge portion of the displacement portion guides and locks the locking portion, and further insertion operation is blocked. That is, the provision of the disc insertion restricting member can further improve the reliability of preventing erroneous insertion of another disc.

Further, according to the fourth invention of the present application,
Basically, the same effect as that of any one of the first to third inventions can be obtained. In particular, the displacement portion of the disc insertion restricting member can be maintained at the first position when the floating lock mechanism is not operated, with a relatively simple structure in which only the biasing means is provided. It is possible to displace the displacement portion from the first position to the second position by utilizing the locking operation of.

Further, according to the fifth invention of the present application,
Basically, the same effect as that of the above-mentioned fourth invention can be obtained. In particular, when a biasing means for biasing the displacement portion of the disc insertion restricting member to the first position side is appropriately set and attached to the apparatus frame, the floating spring causes the traverse base to move in the disc loading / unloading direction in the biasing means. It is possible to also perform an urging action of urging in a direction substantially orthogonal to the above. By removing the spring that should be located closest to the attachment portion of the urging means from the plurality of floating springs, It becomes possible to use it by both means.
As a result, the number of parts of the disk device can be reduced, which can contribute to simplification of the structure and reduction of manufacturing cost.

Furthermore, according to the sixth invention of the present application,
Basically, the same effect as any one of the first to fifth inventions can be obtained. In particular, since the mounting portion of the disc insertion restricting member is detachably attached to the device frame, it can be relatively easily removed from the device base when the disc insertion restricting member is unnecessary.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an assembled state of a disk device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the disk device.

FIG. 3 is a plan view of the disc device.

FIG. 4 is a bottom view of the disc device.

FIG. 5 is a side view showing the left floating lock mechanism provided on the left side surface of the traverse base of the disk device in a floating state.

FIG. 6 is a side view showing a locked state of the left side floating lock mechanism.

FIG. 7 is a side view showing the right side floating lock mechanism in a floating state.

FIG. 8 is a side view showing the right floating lock mechanism in the locked state.

FIG. 9 is a front explanatory view of the disk device.

FIG. 10 is a partial bottom view of the disk device, as seen from the direction of the arrow Y10-Y10 in FIG.

FIG. 11 is an exploded perspective view showing a mounted state of a stopper lever.

FIG. 12 is a schematic partial front view of the disk device showing the rotation position of the stopper lever in the floating state.

FIG. 13 is a schematic partial front view of the disk device showing the rotation position of the stopper lever in the floating lock state.

FIG. 14 is an exploded perspective view showing a mounting state of a stopper lever including a stopper portion according to a modification.

FIG. 15 is a front explanatory view of a stopper portion according to the modified example.

FIG. 16 is a partial cross-sectional explanatory view schematically showing a front portion of a disk device including a disk stopper according to another embodiment of the present invention.

[Explanation of symbols] 1, 91 ... Disk device 7. Floating mechanism 9 ... Coil spring with floating mechanism 10, 92 ... Device frame 12 ... Front vertical wall of device frame 20 ... Traverse base 21 ... Disc slot (disc entry / exit opening) 22 ... Laura 23 ... Disc guide 32 ... Clamper plate 32a, 32b ... Recessed portion of clamper plate 41 ... Turntable 50 ... Disc 51 ... Second motor 61 ... Slider 62 ... Cam section 63 ... Left side urging plate 64 ... Roller arm 65 ... Right-side urging plate 66 ... Connection plate 67 ... Rotating plate 71 ... Stopper lever 71a ... Lever body 71b ... Mounting base 71c, 81 ... Stopper 72 ... Mounting shaft 73 ... Lever urging spring 80 ... other discs 82 ... Disk locking portion of stopper portion 83 ... Guide slope of stopper 93 ... Stopper arm 93a ... Arm body 93b ... Mounting base 93c ... Stopper 94 ... Mounting screw

Claims (6)

[Claims] 1. A disk loading / unloading opening for loading and unloading a disk, a turntable capable of supporting and rotating the disk, and a transfer for transferring the disk between the disk loading / unloading opening and the turntable. Means, the transfer means, a traverse base on which a predetermined component including the disk loading / unloading opening and the turntable is mounted, and the traverse base is at least 1 relative to the apparatus frame.
A floating support mechanism for floatingly supporting the direction, and a floating lock mechanism for locking the traverse base at a predetermined lock position within a floating range of the floating support mechanism, and the disk is inserted into the device through its entry / exit opening. During the loading operation of inserting and setting on the turntable, or during the ejecting operation of ejecting the disc on the turntable from the inlet / outlet opening, the floating lock mechanism operates and the traverse base moves within a predetermined range within the floating range. In the disc device that is locked at the lock position, a disc insertion restricting member having a displacement portion that is displaceable in a direction substantially orthogonal to the disc insertion / ejection direction with the attachment portion to the device frame as a fulcrum is provided. The displacement portion of the disc insertion restricting member has a first position located in front of the disc loading / unloading opening and a first position retracted from the front side of the disc loading / unloading opening in accordance with the operating state of the floating lock mechanism. A disk drive characterized by being displaced between two positions. 2. The displacement portion of the disc insertion restricting member is
2. The disk device according to claim 1, wherein the first position is located substantially in front of the center of the disk loading / unloading opening. 3. A side edge portion of the displacement portion, a locking portion capable of locking an outer edge portion of the disk inserted when the displacement portion is in the first position, and an outer edge of the disk. 3. The disk device according to claim 1, further comprising a guide inclined portion that guides the portion toward the locking portion. 4. A biasing means for biasing the displacement portion of the disc insertion restricting member toward the first position is provided, and the floating lock mechanism displaces the displacement according to a locking operation for locking the traverse base. 4. The disk device according to claim 1, wherein the portion is displaced from the first position to the second position against the biasing force of the biasing means. 5. The floating support mechanism floating-supports the traverse base with respect to the apparatus frame in at least a direction substantially orthogonal to the disc loading / unloading direction, and includes a plurality of floating springs that bias the traverse base in at least the direction. 5. The floating spring, which has the disk insertion restricting member and the urging means, should be located at a position closest to the mounting portion when the disc insertion restricting member and the urging means are attached to the apparatus frame. The disk device described. 6. The mounting portion of the disc insertion restricting member comprises:
The disk device according to any one of claims 1 to 5, wherein the disk device is detachably attached to the device frame.