JPH11345449A - Disk unit - Google Patents

Abstract

(57) [Problem] To provide a disk device capable of reliably performing an operation at the time of disk clamping that increases a mechanical load and smoothly taking in a disk to be inserted. SOLUTION: A disk transport mechanism 6 having a drive roller 26 and a disk guide 27 for transporting a disk 39 while sandwiching the disk 39 from both sides between an insertion slot 3 of a cabinet 1 and a reproducing unit 5; The nipping portion is moved between a nipping / conveying position where the disk 39 can be nipped / conveyed and a non-nipping / conveying position, and is conveyed by the interlocking mechanism 9 for driving the disk conveying mechanism 6 in conjunction with the disk conveying mechanism 6. An insertion detection switch 65 that detects the position of the disk 39 via the first disk detection lever, and a driving force of the interlocking mechanism 9 is transmitted via the loading motor 24 based on the position of the disk 39 detected by the insertion detection switch 65. And a microcomputer provided with a microcomputer 79 for switching.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a CD, a CD-RO
The present invention relates to a disk device that performs reproduction of an optical disk such as M or DVD.

[0002]

2. Description of the Related Art As a loading method of a disk used in a CD player mounted on a vehicle or a part of a CD-ROM drive, a disk is defined in an insertion slot provided in a front panel when the disk is loaded. When the disc is inserted, the inserted disc is automatically taken into the device and transported to the playback position. On the other hand, when the disc is unloaded, the drive mechanism is pushed in the opposite direction to the loading by pressing the eject button provided on the front panel etc. There is a so-called slot loading system in which the system is driven and a part of the disc is carried out to a position exposed from the insertion slot.

In the lot loading method, a disc is transported while being pinched from both sides. A disc is fixed between a guide member fixed inside the apparatus and a roller movably provided at a position facing the guide member. The disk is conveyed by nipping the disk and rotating the roller by a rotary drive mechanism. In addition to the rotation drive mechanism, the roller is provided with a disk holding mechanism for moving the roller in the thickness direction of the disk between a holding / conveying position at which the disk can be held / conveyed and a non-nipping / conveying position. When the disc conveyed to the reproduction position is reproduced, the disc nipping mechanism moves the rollers to the non-nipping and conveying position in order to make the disk rotatable by the reproduction mechanism,
On the other hand, at the time of loading, in which the disc is transported between the reproducing mechanism and the insertion slot, the rollers are moved to the nipping transport position so that the disc can be nipped and transported between the guide member and the rollers. I was trying to make it.

In such a slot loading system, since the driving of each mechanism is controlled in accordance with the position of a disk to be loaded or unloaded, a detection switch may be provided on the disk transport trajectory. Was common.

[0005]

However, there are two types of discs having different diameters, namely, a so-called 12 cm disc and an 8 cm disc.
Needless to say, in order to control the loading operation, it is necessary to detect a predetermined disc position when inserting and ejecting two kinds of discs, so that a plurality of detection switches are required.

Further, in the conventional slot loading method, each mechanism is generally driven in conjunction with one loading motor via one loading motor. When a disc is inserted, a disc inserted from an insertion slot is used. When the disc is conveyed to the reproducing mechanism by rollers or the like, the operation of moving the disc clamping mechanism to the non-clipping conveyance position and simultaneously raising the reproducing mechanism to clamp the disc is performed at the same time. It was controlled to always generate a driving force higher than the mechanical load. For this reason, even in a situation where the mechanical load is relatively small at the moment when the disk inserted from the insertion slot is taken into the disk holding mechanism, an excessively large driving force is transmitted from the loading motor to the rollers and the like, There has been a problem that a user cannot smoothly take in a disc inserted by a roller or the like.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is possible to reduce the number of detection switches used for controlling a loading mechanism, and to surely execute an operation at the time of disk clamping which increases a mechanical load. It is an object of the present invention to provide a disk device capable of smoothly loading a disk inserted by a user by a loading mechanism.

[0008]

According to a first aspect of the present invention, there is provided a disk drive comprising: a housing having a built-in reproducing unit for driving and reproducing a disk; An opening provided in the housing, through which a disk is inserted and removed from the housing; and a driving member for transporting the disk while nipping the disk from both sides between the opening and the reproducing unit; and A disk transport mechanism having a guide member for pressing the disk, and moving any of the drive member or the guide member between a nipping transport position capable of nipping and transporting the disk and a non-nipping transport position in the thickness direction of the disk. A disk clamping mechanism to be moved, an interlocking mechanism that drives the disk transporting mechanism and the disk clamping mechanism in conjunction with each other, and the disk transporting mechanism that is transported by the disk transporting mechanism. A detecting means for detecting the position of the disk, based on the position of the disc detected by said detecting means, characterized by comprising a switching means for switching the driving force of the interlocking mechanism.

Further, the disk device of the present invention is characterized in that
As described in the above, a housing accommodating a disk, a housing having a built-in playback unit for driving and playing the disk housed in the housing, provided in the housing, from the housing, An opening through which the container is put in and out; a driving member that conveys the container while holding the container from both sides between the opening and the reproduction unit; and a guide member that presses the container against the driving member. A container holding mechanism for moving a container transfer mechanism and either the driving member or the guide member in a thickness direction of the container between a nipping transfer position at which the container can be nipped and transferred and a non-nipping transfer position. A mechanism, an interlocking mechanism that drives the container transport mechanism and the container holding mechanism in conjunction with each other, a detecting unit that detects a position of the container that is transported by the container transport mechanism, and a detecting unit that detects The issued based on the position of the container, characterized by comprising a switching means for switching the driving force of the interlocking mechanism.

Further, according to a third aspect of the present invention, there is provided a disk device, wherein a housing having a built-in playback unit for driving and playing a disk is provided on the housing. An opening through which a disk is inserted and removed, a disk transport mechanism including a drive member that transports the disk while sandwiching the disk from both sides between the opening and the reproduction unit, and a guide member that presses the disk against the drive member; Interlocking a disk holding mechanism for moving the guide member in a thickness direction of the disk between a nipping and conveying position at which the disk can be nipped and conveyed and a non-nipping and conveying position; An interlocking mechanism that drives the disk drive, detecting means for detecting the position of the disk transported by the disk transporting mechanism, and detecting the position of the disk transported by the disk transporting mechanism. It was based on the position of the disc, characterized by comprising a switching means for switching the driving force of the interlocking mechanism.

[0011] The disk device of the present invention is characterized in that:
As described in, a housing having a built-in playback unit for driving and playing a disk, provided in the housing,
An opening through which a disk is inserted into and removed from the housing; a driving member that conveys the disk while holding the disk from both sides between the opening and the reproduction unit; and a guide member that presses the disk against the driving member. A disc transport mechanism, a disc clamping mechanism for moving any one of the drive member and the guide member in a thickness direction of the disc between a clamp transport position at which the disc can be clamped and transported, and a non-clipping transport position; A unit moving mechanism for moving a unit between a reproduction execution position for executing reproduction of the disk and a non-reproduction execution position, and driving the disk transport mechanism, the disk clamping mechanism, and the unit movement mechanism in conjunction with each other Interlocking mechanism and detecting means for detecting that the disk transported by the disk transport mechanism has reached a predetermined position , The disc by the detecting means when it is detected that it has reached the predetermined position, characterized by comprising a switching means for switching the driving force of the interlocking mechanism.

Further, according to a fifth aspect of the present invention, there is provided a disk device, wherein a housing having a built-in reproducing unit for driving and reproducing a disk is provided on the housing, and An opening through which a disk is inserted and removed, a disk transport mechanism including a drive member that transports the disk while sandwiching the disk from both sides between the opening and the reproduction unit, and a guide member that presses the disk against the drive member; A disk holding mechanism for moving any one of the drive member and the guide member in a thickness direction of the disk between a nipping / conveying position capable of nipping / conveying the disk and a non-nipping / conveying position, and only the disk conveying mechanism Drive, or drive in conjunction with the disk transport mechanism and the disk clamping mechanism, according to the position of the disk being transported. Mechanism and detects a said disk to be inserted through the opening in the predetermined insertion position,
Detecting means for detecting that the disk transported by the disk transport mechanism via the interlocking mechanism has reached a predetermined carry-in position; and the interlocking mechanism when the detecting means detects the disk at the insertion position. And a switching means for switching the driving force of the interlocking mechanism when the detection means detects that the disk has reached the carry-in position.

[0013] The disk device of the present invention is characterized in that:
As described in, a housing having a built-in playback unit for driving and playing a disk, provided in the housing,
An opening through which a disk is inserted into and removed from the housing; a driving member that conveys the disk while holding the disk from both sides between the opening and the reproduction unit; and a guide member that presses the disk against the driving member. A disk transport mechanism, a disk clamping mechanism for moving any of the driving member or the guide member in a thickness direction of the disk between a nipping transport position capable of nipping and transporting the disk and a non-nipping transport position, An interlocking mechanism that drives only the disk transport mechanism or drives the disk transport mechanism and the disk clamping mechanism in accordance with the position of the disk being transported; And the interlocking mechanism causes the disc transport mechanism to move from the reproduction unit side to the opening side. It said disk being conveyed through the,
Detecting means for detecting that a predetermined unloading position has been reached;
The drive of the interlocking mechanism is started when the disc is detected at the insertion position by the detection means, and the drive of the disc transport mechanism is started when the detection means detects that the disc has reached the unloading position. And a drive control means for stopping the operation.

According to a seventh aspect of the present invention, in the disk device according to the fifth or sixth aspect, the detecting means is a switch having a single contact, The position of the disc to be conveyed can be detected by any of a change from a non-contact state to a contact state and a change from a contact state to a non-contact state at the contact of the switch.

Further, in the disk device according to the present invention, in the disk device according to the sixth aspect, the insertion position may be set before the disk is held by the disk transport mechanism. Location and
The unloading position is a position where at least a part of the disk is held by the disk transport mechanism and at least a part of the disk protrudes from the opening.

According to the disk drive of the present invention, the position of the disk transported between the opening of the housing and the reproducing unit can be detected, and only the disk transport mechanism can be driven or the disk transport mechanism can be detected. Since the driving force of the interlocking mechanism that executes the interlocking of the disk holding mechanism and the unit moving mechanism according to the position of the conveyed disk can be switched based on the detected position of the disk, the driving mechanism system It is possible to set the driving force according to the change of the mechanical load.

The means for detecting the position of the disk to be conveyed is a simple contact switch having a simple structure, and the switch having the simple structure detects the disk position at two positions. So you can
The number of detection switches used to control the loading mechanism can be substantially reduced.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view schematically showing a disk drive according to an embodiment of the present invention.

As shown in FIG. 1, in this disk device, reference numeral 1 denotes a cabinet 1 as a housing having a disk drive mechanism, a disk transport mechanism and the like inside. A front panel 2 on the front of the cabinet 1 is provided with an insertion slot 3 for inserting and removing a disk into and out of the cabinet 1, an eject switch 4 for discharging a disk carried into the cabinet 1 by a disk transport mechanism, and the like. I have.

As shown in FIGS. 2 to 4, a reproducing unit 5 for driving and reproducing a disk is provided in the cabinet 1.
A disk transport mechanism 6 for transporting the disk between the insertion slot 3 and the reproduction unit 5 while nipping the disk from both sides, and a disk for detecting the position of the disk loaded or unloaded from the cabinet 1 by the disk transport mechanism 6 Detection mechanism 7
A unit elevating mechanism 8 for moving the reproducing unit 5 up and down between a reproduction execution position for executing disk reproduction and a non-reproduction execution position, and an interlocking mechanism 9 for interlocking the disk transport mechanism 6 and the unit elevating mechanism 8 Is provided.

In the reproducing unit 5, a mechanical chassis 10 having a disk drive / reproducing mechanism is supported by a mechanical holder 12 via a plurality of damper rubbers 11, and the mechanical chassis 10 is mounted on a turntable 13. A disk motor 14 for driving the disk, a pickup 15 for reading signals recorded on the disk, a pickup feed mechanism for moving the pickup 15 in the radial direction of the disk via a sled motor 16 and the like are mounted. Rotation shafts 17 are coaxially protruded from both sides of the insertion unit 3 on the rear side of the reproduction unit 5, and each rotation shaft 17 is rotatable by a shaft holding unit 18 provided in the cabinet 1. Is held. A rotation guide shaft 19 protrudes from a side surface of the reproduction unit 5 on the side of the insertion opening 3.

As the unit elevating mechanism 8, the rotation guide shaft 19 of the reproducing unit 5 is inserted and held in an elevating guide groove 21 on the side of a cylindrical cam 20 incorporated in the cabinet 1. Accordingly, it is guided in the vertical direction, that is, in the thickness direction of the disk, along the elevating guide groove 21. Thus, the reproducing unit 5 is configured to tilt about the rotation shaft 17 as a fulcrum. When the reproduction unit 5 is raised to the reproduction execution position by the unit elevating mechanism 8, the magnet portion of the turntable 13 and the clamper holder 22 incorporated in the cabinet 1 are moved.
Therefore, the disk mounted on the turntable 13 is clamped between the turntable 13 and the clamper 23.

The disk transport mechanism 6 includes a transport roller 26 driven by a plurality of roller drive gear groups 25 for transmitting a driving force of a loading motor 24, and a transport roller 26 having a leading end portion. A disc guide 27 for holding the disc is provided. The disc guide 27 has openings on the side of the insertion opening 3 and the side of the reproducing unit 5, and the disc can pass through the inside of the disc guide 27. In the disk guide 27,
Rotating shafts 28 are provided on both side surfaces on the side of the insertion opening 3, and the disk guide 27 is configured such that the tip inside the upper portion with the rotating shaft 28 as a fulcrum is capable of holding and transporting a disk. It rotates so as to move between a non-nipping transport position in which the distance from the roller 26 is sufficiently larger than the thickness of the disk. That is, the disk holding mechanism for rotating the disk guide 27 is such that the guide elevating pin 29 provided at the bottom of the disk guide 27
0, the cylindrical cam 2
0 is rotated to move the leading end of the disk guide 27 between the nipping and transporting position and the non-nipping and transporting position. Further, when the distal end portion of the disc guide 27 is at the non-nipping transport position separated from the disc, the playback unit 5 is located at the playback execution position via the cylindrical cam 20. 23, and the disk can be driven for reproduction. The above-described cylindrical cam 20 includes a plurality of roller driving gear groups 25 and a cam driving gear group 31 for transmitting the driving force of the loading motor 24.
Is driven to rotate. Further, the disc guide 27
A guide spring 32 whose one end is hung on the bottom of the cabinet 1 is attached near each of the rotary shafts 28. The guide spring 32 causes the distal end portion of the disk guide 27 to be driven by the rotary shaft 28 as a fulcrum. 26 is given a predetermined pressing force. That is, the disk is conveyed according to the rotation direction of the drive roller 26 by the rotational driving force of the drive roller 26 and the pinching force of the disk guide 27 via the guide spring 32.

A cam 33 is provided at an end of the disc guide 27 on the side of the insertion opening 3.
Reference numeral 3 controls the operation of an opening / closing door 34 that opens and closes the insertion slot 3 according to the rotation of the disc guide 27. That is, when a disc is loaded or unloaded through the insertion slot 3,
The disc guide 27 is at the nipping and transporting position. At this time, the opening / closing door 34 is positioned at a position where the insertion opening 3 is opened by the restraining force of the cam portion 33. On the other hand, the disk is in cabinet 1
In the state where the disc guide 27 is in the non-conveying position, the opening / closing door 34 is rotated by the cam portion 33 so as to close the insertion opening 3, and the opening / closing door 34 is further rotated. An opening / closing door holding member 35 having a door rotation preventing projection 35b is provided to hold the insertion opening 3 so as not to open. This opening / closing door holding member 3
5 is provided with a gear portion 35a.
When the gear "a" meshes with the gear portion 62 of the cylindrical cam 20, the door holding member 35 is rotated. Further, the opening / closing door 34 is provided with an opening / closing door spring 36, and the opening / closing door 34 allows the opening / closing door 34 to be inserted into the insertion opening 3
Is urged in the direction to close the cam, that is, the side that comes into contact with the cam portion 33.

Disk transport mechanism 6 and unit elevating mechanism 8
As shown in FIGS. 2 to 4, a disk mounting plate 45 on which the disk 39 is temporarily mounted at the time of loading, and a disk mounting plate 45 which is incorporated into the disk mounting plate 45 to load the disk 39 at the time of loading. Disc position regulating lever 46 for regulating the position in the lateral direction
And a disk loading lever 47 for starting the driving of each member of the interlocking mechanism 9 when loading the disk 39, and a support lever spring 49 urges the support shaft 48 provided in the cabinet 1 counterclockwise about a supporting point. A disk loading support lever 50 that supports the vicinity of the rotation center of the disk loading lever 47 and a cam interlocking plate 51 that transmits the drive of the disk loading lever 47 to the cylindrical cam 20 side.
And a cam drive lever 52 for transmitting the drive of the cam interlocking plate 51 to the cylindrical cam 20.

The disk loading support lever 50 rotates within a range until it comes into contact with two stoppers provided on the cabinet 1. When the disk loading support lever 50 rotates counterclockwise and comes into contact with one of the stoppers, The lever 50 at this time
Is used as a reference, and the cam interlocking plate 51 is advanced when the disk loading lever 47 rotates clockwise. When the lever 50 rotates clockwise and comes into contact with the other stopper, it becomes a reference for positioning the disk mounting plate 45 in the forward direction from the coupling relationship between the disk carrying lever 47 and the cam interlocking plate 51.

The disk mounting plate 45 is provided with a mounting plate spring 53 for urging the disk mounting plate 45 toward the insertion slot 3. When the disk 39 is not housed in the cabinet 1, the disk mounting plate 45 is closed. Is positioned at a predetermined forward position on the side of the insertion slot 3 which is positioned via the disk loading support lever 50. On the other hand, as shown in FIGS.
Is loaded, the disk mounting plate 45 is retracted from the insertion slot 3 side, and when the reproducing unit 5 is raised to the reproduction execution position, the protrusion 54 formed on the bottom surface of the disk mounting plate 45 The stopper 55 formed on the mechanical holder 12 of the unit 5 is engaged, and the disk mounting plate 45 is located at this position retracted from the insertion slot 3 side.

The disc position regulating lever 46 incorporated in the disc mounting plate 45 is moved along a moving groove 56 formed in the clamper holder 22 as the disc mounting plate 45 moves. I have. Therefore, the disc position regulating lever 46 is
Before the disk 39 is carried in, the disk 39 is positioned at the insertion slot 3 side. On the other hand, when the disk 39 is loaded, the disk 39 retreats from the insertion port 3 side and is separated from the end face of the disk 39 by the moving groove 56.

Further, the disc position regulating lever 46 is
Each of the discs 39 is urged by the position regulating spring 57 toward the disc 39 to be loaded.
When loading or unloading, the end face of the disk 39 can be supported. When the disk 39 is transported to the disk mounting plate 45 by the disk transport mechanism 6, the disk 39 comes into contact with the disk contact portion 58 of the disk loading lever 47, and the support shaft 50a of the disk loading support lever 50 is moved. It rotates slightly counterclockwise as the center of rotation.

The cam drive lever 52 has a plate engaging portion 59 at one end for engaging with the cam interlocking plate 51 and a cam engaging portion for engaging with the lever holding groove 60 of the cylindrical cam 20 at the other end. In addition, it rotates about a support shaft 52a provided in the cabinet 1 as a fulcrum. Further, a lever spring 61 is incorporated in the cam drive lever 52, and biases the cam drive lever 52 counterclockwise about the support shaft 52a. Accordingly, the cylindrical cam 20 is urged to rotate clockwise through the lever holding groove 60. Therefore, the diving gear portion 62 and the cam driving gear group 31 formed partially in the cylindrical cam 20 are rotated. It is not normally meshed with the drive gear 63.

However, when the disk 39 is transported to the disk mounting plate 45 by the disk transport mechanism 6, the disk 39 comes into contact with the disk contact portion 58 of the disk loading lever 47. The disk mounting plate 45 is retracted by the portion 58, and the disk loading support lever 50 rotates clockwise about the support shaft 48 as a fulcrum, thereby abutting on one stopper of the cabinet 1. As a result, the disk loading lever 47 rotates clockwise around the support shaft 50a, the cam interlocking plate 51 moves forward, and the cam drive lever 52 rotates clockwise while resisting the urging force of the lever spring 61. As a result, the cylindrical cam 20 slightly rotates counterclockwise.
0 gear portion 62 and drive gear 6 in cam drive gear group 31
3 and the loading motor 2
The disk drive mechanism 6 and the unit elevating mechanism 8 can be driven via the roller drive gear group 25, the cam drive gear group 31, and the cylindrical cam 20 with the driving force of 4.

Next, the disk detecting mechanism 7 will be described. In the present embodiment, each of a configuration for detecting a 12 cm disk and a configuration for detecting an 8 cm disk will be described.

First, the configuration for detecting the 12 cm disc 39 will be mainly described. As shown in FIGS. 4 and 8 to 10, the disk detection mechanism 7 includes a circuit board 64 incorporated in the bottom of the cabinet 1, an insertion detection switch 65 and an ejection detection switch 66 mounted on the circuit board 64, respectively. The end face of the disc 39 inserted through the insertion slot 3 and the boss 40a come into contact with each other and move, so that the switch pressing section 67 moves.
The first disc detection lever 40 for detecting the insertion of the disc 39 by pressing down the switching section 68 of the insertion detection switch 65 makes contact with the end face of the disc 39 ejected toward the insertion slot 3 and the boss 71a. A second disc detection lever 71 for detecting that the disc 39 has reached the ejection position by pressing the switching unit 70 of the ejection detection switch 66, which is a push switch, with the switch pressing unit 69; When the disc 39 is loaded into the unit, the switching unit 73 is pressed by the switch pressing unit 72 of the cam drive lever 52 that rotates clockwise around the support shaft 52a, so that the reproducing unit 5 rises and executes reproduction. And a clamp completion detection switch 74 for detecting that the movement to the position has been completed. The first disk detection lever 40 and the second disk detection lever 71 are detected by detection lever springs 75 and 76 which are respectively incorporated so that a part of each lever is located at a predetermined initial position where the lever comes into contact with a stopper of the cabinet 1. , Each being energized.

As shown in FIG. 11, a microcomputer 79 and a drive circuit 80 are mounted on the circuit board 64, and each detection switch and the above-described eject switch 4 are mounted.
The loading motor 24 through the drive circuit 80 based on the signal input status (SW: ON / OFF) at
Is controlled by the microcomputer 79. That is,
At the time of loading the disk 39 into the cabinet 1, as shown in FIG. 9, the leading end of the disk 39 in the insertion direction does not reach the position between the driving roller 26 and the holding portion of the leading end of the disk guide 27, that is, Before the inserted disc 39 is sandwiched between these members, an insertion detection switch 65 is attached so that the loading motor 24 is driven, and as shown in FIG. 8, the reproduction unit 5 is raised and moved to the reproduction execution position. The cam drive lever 5 is moved so that the driving of the loading motor 24 is stopped when the driving is completed.
A clamp completion detection switch 74 is attached based on the position of the second switch pressing section 72. On the other hand, when the disc 39 is ejected from the cabinet 1, FIG.
As shown in FIG.
And the disk guide 27 and the disk 39
A discharge detection switch 71 is attached so that the driving of the loading motor 24 is stopped at a position where at least a part of the device is exposed from the insertion port 3.

Therefore, when the disk 39 is loaded, the microcomputer 79 sets the insertion detection switch 65 to the O position.
The loading motor 24 starts to rotate in the counterclockwise direction at the timing of N, and the loading motor 2
4 stops. On the other hand, when the disc 39 is carried out, the loading motor 24 starts rotating clockwise at the timing when the above-mentioned eject switch 4 is turned on by the microcomputer 79, and further, as shown in FIG. The rotational drive of the loading motor 24 is stopped at a timing when the switch 66 is once turned on and then turned off, that is, at a timing after the maximum diameter of the disk 39 passes near the ejection detection switch 66.

Next, a configuration for detecting the 8-cm disc 39a will be described. In addition, 12cm disk 3
The description of the configuration of the portion overlapping with the detection of No. 9 is omitted. As shown in FIG. 12, an insertion detection switch 81 and an ejection detection switch 82 are further mounted on the circuit board 64 to detect the disc 39a, and the switching unit 83 of the insertion detection switch 81 includes an ejection detection switch 66. Similarly to the switching unit 70, the switch pressing unit 69 of the second disk detection lever 71 is pressed down, and the switching unit 84 of the ejection detection switch 82 is pressed down by the switch pressing unit 85 of the first disk detection lever 40. . When the disc 39a is inserted, as shown in FIG. 13, the detection switch 65 is used similarly to the detection of the 12 cm disc 39, including the case where the insertion of the disc 39a is shifted to the right with respect to the insertion slot 3, as shown in FIG. As shown,
When the insertion of the disk 39a is shifted leftward with respect to the insertion slot 3, the detection switch 81 is used for detecting the disk 39a. On the other hand, when the disc 39a is ejected, as shown in FIG.
Is used. Similarly, when the ejection of the disc 39a is shifted to the right with respect to the insertion slot 3, the ejection detection switch 82 is used. When the ejection of the disc 39a is shifted to the left with respect to the insertion slot 3, Similarly to the case where the insertion is shifted to the left with respect to the insertion slot 3, the insertion detection switch 82 is also used. As described above, one switch can be deleted by using one switch to detect the insertion and ejection of the disk.

The insertion detection switches 65 and 81 and the ejection detection switch 82, which are switches for detecting the 8 cm disk 39a, are used to carry the disk 39a into the cabinet 1 in the same manner as the detection of the loading / unloading of the 12cm disk 39. In some cases, as shown in FIG. 12, before the leading end of the disc 39 in the insertion direction reaches between the driving roller 26 and the clamping portion of the leading end of the disc guide 27, that is, the inserted disc 39a is The loading motor 24 is mounted so as to be driven before being nipped, while the disc 39a is ejected from the cabinet 1 as shown in FIG.
Of the disk 39 is held between the drive roller 26 and the holding portion at the tip of the disk guide 27, and at least a part of the disk 39 is exposed from the insertion slot 3.
4 is mounted so as to stop driving.

In addition, 12 cm and 8 c via each detection switch, which is a single contact type push switch here.
The control by the microcomputer 79 when loading and unloading the m disk will be described in detail. When the disc is loaded, as shown in FIGS. 16 and 17, at the timing when the insertion detection switch 65 is turned from OFF to ON, in addition to starting the driving of the loading motor 24 in the counterclockwise direction, At the timing of turning off again by the movement of the disk, the driving force of the loading motor 24 is switched, that is, the voltage value of the positive voltage applied to the loading motor 24 is switched. That is, the insertion detection switch 65
This timing is turned off once after being once turned on, triggered by the rotation of the disc loading lever 47,
As the cylindrical cam 20 rotates counterclockwise, the timing before the reproducing unit 5 rises and the tip of the disc guide 27 rises, that is, before the mechanical load driven by the loading motor 24 greatly increases. It is timing. At this timing, the voltage applied to the loading motor 24 via the drive circuit 80 by the microcomputer 79 changes the insertion detection switch 65 from ON to OFF with respect to the voltage from when the insertion detection switch 65 is once turned ON to when it is turned OFF. Voltage until the clamp completion detection switch 74 is turned on.
The voltage is controlled so as to be doubled.

Thus, the operation at the time of clamping the disk with a large mechanical load can be reliably performed, and the driving force is reduced when the disk with a relatively small mechanical load is conveyed, so that the disk inserted by the user can be taken in. A smooth loading mechanism has been realized. In addition, although the detection switch is of a single contact type, ON to OFF other than the timing of OFF to ON.
Control is performed at the timing when the disk is loaded, so that two types of control can be performed with one single contact switch without using a two-contact switch or adding another switch in the operation at the time of loading the disk. It can be carried out. In addition, as shown in FIG.
Is inserted to the left, the input signal from the insertion detection switch 81 is given priority over the insertion detection switch 65, and the ON / OFF of the insertion detection switch 81 is set.
Based on the above, control such as switching of the voltage applied to the disk motor 24 is similarly performed.

On the other hand, when the disc is carried out, as shown in FIGS. 18 and 19, when the eject switch 4 is depressed and turned on once, and immediately thereafter turned off, the microcomputer 79 controls the loading motor 24 by the microcomputer 79. A negative voltage is applied, and the motor 24 starts driving clockwise. Thereafter, regardless of the disc diameter such as 12 cm or 8 cm, the insertion detection switch 65, the insertion detection switch 81, the ejection detection switch 82, and the ejection detection switch 6
6 is turned on, and when any of the detection switches is turned off first, the microcomputer 79 controls the voltage applied to the disk motor to zero, that is, the drive of the disk motor 24 is stopped. Will be

Next, the operation when the 12 cm disk 39 is actually loaded into or unloaded from the cabinet 1 in the disk device configured as described above will be described. First, the operation during loading will be described. As shown in FIG. 9, when the disc 39 is inserted through the insertion slot 3, the distal end portion in the insertion direction comes into contact with the first disc detection lever 40, and counterclockwise while resisting the urging force of the detection lever spring 75. The first disk detection lever 4 in the direction
0 rotates. Due to the rotation of the first disk detection lever 40, the switching unit 68 of the insertion detection switch 65 is pressed by the switch pressing unit 67 of the lever 40 (S).
W: ON), a relatively small voltage is applied to the loading motor 24 as shown in FIG.
4 starts to rotate in the counterclockwise direction, the driving force is transmitted to the driving roller 26 through the roller driving gear group 25, and the driving roller 26 starts to rotate. Further, when the leading end portion of the inserted disk 39 in the insertion direction reaches between the driving roller 26 and the holding portion of the disk guide 27, the disk 39 is taken in between them and conveyed while being held therebetween. At this time, the loading motor 2
Since a relatively small voltage, that is, a voltage for generating an appropriate force for taking in the disk 39 by the drive roller 26, is applied to the disk 4, the disk transport mechanism 6 can smoothly take in the disk 39 inserted by the user. I can do it. The end face of the disk 39 loaded into the disk transport mechanism 6 comes into contact with the disk position regulating lever 46, and the lateral position of the disk 39 when the disk 39 is transported is regulated.

The transport of the disk 39 is continued, and the leading end of the disk 39 in the transport direction is moved to the disk loading lever 47.
As shown in FIG. 16, the insertion detection switch 65 changes from ON to OFF, and the voltage applied to the loading motor becomes, for example, twice as high as before. As a result, the operation at the time of the disk clamping in which the mechanical load thereafter becomes large can be reliably performed.

Thereafter, the disk 39 is transported on the disk mounting plate 45 as shown in FIG.
6, the disc mounting plate 45 is pushed by the disc contact portion 58 to retreat from the insertion slot 3 side to a predetermined position, and the disc loading support lever 50, as shown in FIG. Rotates counterclockwise about the support shaft 48 as a fulcrum, thereby abutting against one stopper of the cabinet 1. Thereby, the disk loading lever 4
7 rotates clockwise around the support shaft 50a. On this occasion,
The disk horizontal support lever 46 incorporated in the disk mounting plate 45 also retreats along the lever movement groove 56 formed in the clamper holder 22, and the lever movement groove 56 allows the horizontal movement of each disk from the end face of the disk 39. The support lever 46 separates. Further, when the disk loading lever 47 is rotated clockwise about the support shaft 50a, the cam interlocking plate 51 is advanced toward the insertion opening 3 via the plate engaging portion at the other end.

As shown in FIG. 7, the cam interlocking plate 51
Moves forward, the plate engaging portion 5 of the cam drive lever 52
9 is pushed, the cam drive lever 52 rotates clockwise while resisting the biasing force of the lever spring 61, whereby the gear portion 62 provided on the cylindrical cam 22 and the drive gear 6 are rotated.
3 meshes for the first time here. Accordingly, the driving force transmitted from the loading motor 24 through the roller driving gear group 25 and the cam driving gear group 31 causes the cylindrical cam 20 to rotate in the counterclockwise direction.
The tip portion of the disc guide 27 is raised by the inclined portion 30 of 0 through the guide elevating pin 29, and the reproducing unit 5 is moved by the elevating guide groove 21 of the cylindrical cam 20 into which the rotation guide shaft 19 is inserted and held. To the reproduction execution position. At this time, as shown in FIG. 8, the stopper 55 of the mechanical holder 12 and the disk mounting plate 45
And the projection 54 formed on the bottom surface of the disk mounting plate engages via the urging force of the mounting plate spring 53, and the disk mounting plate 45 is located in this position. As described above, the disc guide 27 moves up the disc 39
And the bottom of the disk 39 is separated from the drive roller 26 by the lifting of the reproducing unit 5. As a result, the disc 39 is mounted on the turntable 13.
And a state in which it is supported only by the clamper 23.

On the other hand, when the disc guide 27 is raised, the restraining force of the cam portion 33 of the disc guide 27 is released, and the opening / closing door 34 is closed so that the insertion opening 3 is closed by the urging force of the opening / closing door spring 36. While being rotated, the gear portion 62 of the cylindrical cam 20 and the gear portion 35a of the opening / closing door holding member 35 mesh with the rotation of the cylindrical cam 20, and the door rotation prevention protrusion 35b is rotated toward the insertion port 3 side. The rotation of the opening / closing door 34 in the opening direction of the insertion opening 3 is prevented. As a result, insertion of another disc from the insertion slot 3 is prevented.

Thereafter, when the cam drive lever 52 is further rotated clockwise, the switch pressing portion 72 of the lever 52 is rotated.
As a result, when the switching unit 73 of the clamp completion detection switch 73 is pressed (SW: ON), as shown in FIG. 16, the voltage applied to the loading motor 24 becomes zero and the drive stops, and the disk 39 It will be ready for playback.

Next, the operation when the disk 39 is carried out of the cabinet 1 will be described. Cabinet 1
Eject switch 4 provided on front panel 2
Is depressed, and as shown in FIG.
When it is turned off after reaching N, the loading motor 24 is rotated clockwise via the microcomputer 79 and the drive circuit 80 mounted on the circuit board 64. When the loading motor 24 rotates clockwise, the driving force transmitted through the roller drive gear group 25 and the cam drive gear group 31 causes the cylindrical cam 20 to rotate clockwise. Thereby, the inclined portion 30 of the cylindrical cam 20 is formed.
In addition, the distal end of the disk guide 27 supported via the guide elevating pin 29 rotates downward,
The rotation guide shaft 19 is formed by the elevation guide groove 21 of the cylindrical cam 20.
The playback unit 5 is moved down via. At this time, the engagement between the stopper 55 of the mechanical holder 12 in the reproducing unit 5 and the projection 54 on the bottom surface of the disk mounting plate 45 is released, so that the disk mounting plate 45 is moved toward the insertion opening 3 by the mounting plate spring 53. Receive an urging force. On the other hand, the rotation of the cylindrical cam 20 in the clockwise direction causes the door rotation prevention protrusion 35b of the opening / closing door holding member 35 to move away from the insertion opening 3 side, and the holding portion at the tip of the disc guide 27 to turn downward. By the movement, the opening / closing door 34 is rotated by the cam portion 33 so as to open the insertion opening 3. Further, the disc 39 held again between the holding portion at the tip of the disc guide 27 lowered and the drive roller 26 is transported from the reproduction unit 5 side toward the insertion slot 3 side. Thereafter, the leading end portion of the disc 39 in the unloading direction is
And the second disc detection lever 71 rotates clockwise while resisting the urging force of the detection lever spring 76. Due to the clockwise rotation of the second disk detection lever 71, as shown in FIG. 10, the switching unit 70 of the ejection detection switch 66 is pressed by the switch pressing unit 69 of the lever 71 (S).
W: ON), and then the second disk detection lever 71
The contact portion between the disk and the disk 39 exceeds the maximum diameter of the disk 39, and the urging force of the detection lever spring 76 causes the second
When the disc detection lever 71 rotates counterclockwise and the switching unit 68 of the ejection detection switch 66, which is a push switch, returns (SW: OFF), the driving of the loading motor 24 stops. At this time, this position of the disk 39 is a position where a part of the disk 39 is held between the disk guide 27 and the drive roller 26,
At least a part of the disk 39 is exposed from the disk insertion slot 2 of the cabinet 1. Thus, the disk 39 can be taken out of the cabinet 1 and the operation of unloading the disk is completed.

As described above, according to the disk device of the present embodiment, the position of the disk transported between the insertion slot 3 of the cabinet 1 and the reproducing unit 5 can be detected, and only the disk transport mechanism 6 can be detected. Or the driving force of the interlocking mechanism 9 that executes the interlocking drive of the disk transport mechanism 6 and the unit elevating mechanism 8 according to the position of the disk to be transported, based on the detected position of the disk. Therefore, it is possible to set a driving force according to a change in the mechanical load of the driving mechanism system. Thereby, the operation at the time of clamping the disc, which increases the mechanical load, is reliably performed, and the loading of the disc inserted by the user by the loading mechanism can be performed smoothly.

The position of the disk to be conveyed can be detected by a switch having a single contact having a simple structure, and the disk position at two positions can be detected by one switch having the simple structure. So you can
The number of detection switches used to control the loading mechanism can be substantially reduced.

In the disk drive of this embodiment, the drive roller 26 as a disk holding mechanism is fixed to the cabinet, and the tip of the disk guide 27 moves in the disk thickness direction.
May be moved in the thickness direction of the disk.

Further, in the present embodiment, the description has been given by taking as an example a disk drive device which transports a disk such as a CD-ROM as a single unit. It goes without saying that you can do it.

[0053]

According to the disk drive of the present invention, the position of the disk transported between the opening of the housing and the reproducing unit can be detected, and only the disk transport mechanism is driven or the disk transport is performed. Since the driving force of the interlocking mechanism that performs the interlocking drive of the mechanism, the disk holding mechanism, and the unit moving mechanism according to the position of the conveyed disk can be switched based on the detected position of the disk, the driving mechanism It is possible to set a driving force according to a change in the mechanical load of the system.

Further, the means for detecting the position of the disk to be conveyed is a simple contact switch having a simple structure, and a single switch having this simple structure detects the disk position at two positions. So you can
The number of detection switches used to control the loading mechanism can be substantially reduced.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a disk device according to an embodiment of the present invention.

FIG. 2 is a diagram schematically showing the inside of the disk device of FIG. 1;

FIG. 3 is a diagram showing details of a loading mechanism, an interlocking mechanism, and the like inside the disk device of FIG. 1;

FIG. 4 is a diagram showing in detail a reproducing unit and a disk detecting mechanism inside the disk device of FIG. 1;

FIG. 5 is a diagram showing a state where the end surface of the disk and the disk loading lever are in contact with each other in the disk device of FIG. 1;

FIG. 6 is a diagram showing a state in which a disk loading lever is pressed against an end surface of the disk in the disk device of FIG. 1;

FIG. 7 is a diagram showing a state in which the cylindrical cam rotates and meshes with a drive gear in the disk device of FIG. 1;

FIG. 8 is a diagram showing a state where clamping of the disk has been completed in the disk device of FIG. 1;

FIG. 9 is a diagram showing a state in which a 12 cm disk inserted from the insertion slot is detected in the disk device of FIG. 1;

FIG. 10 is a diagram showing a state in which the removal of the 12 cm disk from the cabinet is completed in the disk device of FIG. 1;

FIG. 11 is a diagram showing an electric control system of a disk detection mechanism in the disk device of FIG. 1;

FIG. 12 is a diagram showing a state where an 8 cm disk inserted from an insertion slot is detected in the disk device of FIG. 1;

FIG. 13 is a diagram showing a state in which an 8 cm disk inserted to be shifted to the right with respect to the insertion slot is detected in the disk device of FIG. 1;

FIG. 14 is a diagram showing a state in which an 8 cm disk inserted to be shifted leftward with respect to the insertion slot is detected in the disk device of FIG. 1;

FIG. 15 is a diagram showing a state in which the removal of the 8 cm disk from the cabinet is completed in the disk device of FIG. 1;

FIG. 16 is a timing chart when a 12 cm disk is inserted in the disk device of FIG. 1;

FIG. 17 is a timing chart when an 8 cm disk is inserted into the disk device of FIG. 1;

18 is a timing chart at the time of ejecting a 12 cm disk in the disk device of FIG. 1;

FIG. 19 is a timing chart at the time of ejection of an 8 cm disc in the disc device of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cabinet 3 ... Insertion port 4 ... Eject switch 5 ... Reproduction unit 6 ... Disc transport mechanism 7 ... Disc detection mechanism 8 ... Unit elevating mechanism 9 ... Interlocking mechanism 20 ... Cylindrical cam 24 ... Loading motor 25 Roller drive gear group 26 Transport roller 27 Disc guide 31 Cam drive gear group 33 Cam section of disc guide 34 Open / close door 35 Open / close door holding member 36 Open / close Door spring 39 12 cm disc 39a 8 cm disc 40 First disc detection lever 40a, 71a Boss 45 Disc mounting plate 46 Disc position regulating lever 47 Disc loading lever 50 Disk loading support lever 51 Cam interlocking plate 52 Cam drive lever 65 81 Insertion detection switches 66, 82... Ejection detection switches 67, 69, 72, 85... Switch pressing section 68, 70, 73, 83, 84,... Switching section 71... Second disk detection lever 74. Completion detection switch 75, 76 Detector lever spring 79 Microcomputer 80 Drive circuit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G11B 17/04 413 G11B 17/04 413F 413J 413W

Claims (8)

[Claims] 1. A housing in which a playback unit for driving and playing a disc is built, an opening provided in the housing and through which a disc is taken in and out of the housing, and between the opening and the playback unit. A disk transport mechanism including a driving member that transports the disk while clamping the disk from both sides, and a guide member that presses the disk against the driving member; and gripping and transporting any of the driving member or the guide member. A disc clamping mechanism for moving the disc in the thickness direction of the disc between a possible clamping conveyance position and a non-clipping conveyance position, an interlocking mechanism for driving the disc conveyance mechanism and the disc clamping mechanism in conjunction with each other, Detecting means for detecting the position of the disk conveyed by a mechanism, based on the position of the disk detected by the detecting means, Switching means for switching the driving force of the interlocking mechanism. 2. A housing for accommodating a disk, a housing having a built-in playback unit for driving and playing back the disk housed in the housing, and a housing provided in the housing, wherein the housing includes And a driving member for conveying the container while holding the container from both sides between the opening and the reproducing unit, and a guide member for pressing the container against the driving member. A mechanism, a container holding mechanism for moving any of the driving member or the guide member in a thickness direction of the container between a nipping / conveying position at which the container can be nipped / conveyed and a non-nipping / conveying position, An interlocking mechanism that drives the container transport mechanism and the container holding mechanism in conjunction with each other; a detecting unit that detects a position of the container that is transported by the container transport mechanism; Was based on the position of the container, the disk apparatus characterized by comprising a switching means for switching the driving force of the interlocking mechanism. 3. A housing having a built-in playback unit for driving and playing a disc, an opening provided in the housing, through which a disc is inserted and removed from the housing, and a gap between the opening and the playback unit. A disk transport mechanism including a driving member for transporting the disk while clamping the disk from both sides, and a guide member for pressing the disk against the driving member; A disc clamping mechanism for moving the disc in the thickness direction of the disc between a clamping conveyance position, an interlocking mechanism for driving the disc conveyance mechanism and the disc clamping mechanism in conjunction, and the disc being conveyed by the disc conveyance mechanism Detecting means for detecting the position of the disk, and cutting off the driving force of the interlocking mechanism based on the position of the disk detected by the detecting means. A disk device, comprising: switching means for switching. 4. A housing having a built-in playback unit for driving and playing a disk, an opening provided in the housing, through which a disk is inserted and removed from the housing, and a space between the opening and the playback unit. A disk transport mechanism including a drive member that transports the disk while clamping the disk from both sides, and a guide member that presses the disk against the drive member; and a disk transport mechanism that can grip and transport any of the drive member and the guide member. A disc clamping mechanism for moving the disc in the thickness direction of the disc between a non-clipping conveyance position and a non-clipping conveyance position; and a reproducing unit for reproducing the disc between a reproduction execution position and a non-reproduction execution position. A unit moving mechanism for moving the disk transport mechanism, the disk clamping mechanism, and an interlocking mechanism that drives the unit moving mechanism in an interlocking manner; Detecting means for detecting that the disk transported by the disk transport mechanism has reached a predetermined position; and driving the interlocking mechanism when the detecting means detects that the disk has reached a predetermined position. A disk device comprising switching means for switching a force. 5. A housing having a built-in playback unit for driving and playing a disk, an opening provided in the housing, through which a disk is inserted and removed from the housing, and a space between the opening and the playback unit. A disk transport mechanism including a driving member that transports the disk while clamping the disk from both sides, and a guide member that presses the disk against the driving member; and gripping and transporting any of the driving member or the guide member. A disc clamping mechanism for moving the disc in the thickness direction of the disc between a possible clamping conveyance position and a non-clipping conveyance position, and driving only the disc conveyance mechanism, or interlocking the disc conveyance mechanism and the disc clamping mechanism An interlocking mechanism for executing the disc according to the position of the disc to be conveyed; and a predetermined insertion position for inserting the disc through the opening. Detecting means for detecting that the disk transported by the disk transport mechanism via the interlocking mechanism has reached a predetermined carry-in position; and detecting the disk at the insertion position by the detecting means. Switching means for starting the driving of the interlocking mechanism, and switching the driving force of the interlocking mechanism when the detection means detects that the disk has reached the carry-in position. apparatus. 6. A housing having a built-in playback unit for driving and playing a disc, an opening provided in the housing, through which a disc is inserted and removed from the housing, and a space between the opening and the playback unit. A disk transport mechanism including a driving member that transports the disk while clamping the disk from both sides, and a guide member that presses the disk against the driving member; and gripping and transporting any of the driving member or the guide member. A disc clamping mechanism for moving the disc in the thickness direction of the disc between a possible clamping conveyance position and a non-clipping conveyance position, and driving only the disc conveyance mechanism, or interlocking the disc conveyance mechanism and the disc clamping mechanism An interlocking mechanism for executing the disc according to the position of the disc to be conveyed; and a predetermined insertion position for inserting the disc through the opening. Detecting means for detecting that the disc conveyed from the reproduction unit side to the opening side via the disc conveyance mechanism by the interlocking mechanism has reached a predetermined unloading position; and A drive that starts driving the interlocking mechanism when the disk is detected at the insertion position and stops driving the disk transport mechanism when the detection unit detects that the disk has reached the unloading position. A disk device comprising a control unit. 7. The disk device according to claim 5, wherein said detecting means is a switch having a single contact, and changes from a non-contact state to a contact state at a contact of said switch, or a contact state. A disk device capable of detecting the position of the disk to be transported in any of a change from a non-contact state to a non-contact state. 8. The disk device according to claim 6, wherein the insertion position is a position before the disk is held by the disk transfer mechanism, and the unloading position is at least a part of the disk. A disk device, wherein the disk device is located at a position sandwiched by a disk transport mechanism and at least a portion of the disk projects from the opening.