WO2012104938A1 - Disc device - Google Patents

Abstract

A disc device comprises: a disc conveyance mechanism which conveys a disc which is inserted via a disc insertion port to a play-capable location; a disc mounting mechanism which mounts the disc which is conveyed to the play-capable location upon a turntable; a cover body which is disposed to be movable by a manual operation between a closed cover location which closes the disc insertion port from the outside and an open cover location which exposes the disc insertion port to the exterior; a retention mechanism which retains the cover body which is moved to the closed cover location in the closed cover location and which retains the cover body which is moved to the open cover location in the open cover location; and a cover open-close switch mechanism which switches the retention state by the retention mechanism in linkage with the open-close operation of the cover body. The cover open-close switch mechanism is configured to disengage the retention state of the cover body in the open cover location, and to automatically move the cover body to the closed cover location, using movement force of a actuating member moving in linkage with a disc mounting operation by the disc mounting mechanism.

Description

Disk unit

The present invention relates to a slot-in type disk apparatus configured to transport a disk-shaped recording medium (hereinafter referred to as a disk) such as a CD, DVD, or BD to a reproducible position in the apparatus without using a tray. .

Conventionally, this type of disk device is usually configured to insert a disk directly into the casing through a disk insertion slot provided in the front of the casing. The disc inserted through the disc insertion slot is transported to a reproducible position by a disc transport mechanism having a roller or the like.

In this type of disk device, since the disk insertion slot is exposed to the outside, foreign matter such as dust may enter the housing through the disk insertion slot. If foreign matter enters the housing, there is a risk of malfunction or failure. As a configuration for preventing this foreign substance from entering, there is one disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2010-55670), for example.

Patent Document 1 is configured such that after a disc passes through a disc insertion opening provided in the casing, a lid constituting a part of the upper wall of the casing is rotated to close the disc insertion opening. A disk device is disclosed. Japanese Patent Application Laid-Open No. H10-228561 discloses a device in which the disk device is accommodated in an outer case, and a substantially dustproof material provided with a slit through which a disk can be inserted is attached to the front surface of the outer case.

Also, there is a configuration disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2000-268549) as a configuration for preventing foreign matter from entering the casing. The device disclosed in Patent Document 2 is not a device in which a disk is directly inserted into a housing, but a device in which the disk is housed in a cartridge and inserted into the housing. The device of Patent Document 2 includes a dustproof lid capable of opening and closing the cartridge insertion slot and a switch for detecting opening and closing of the dustproof lid, and permits recording / reproduction on the disk only when the dustproof lid closes the insertion slot. It is configured as follows.

JP 2010-55670 A JP 2000-268549 A

Ordinarily, in a slot-in type disk device, it is not apparent from the outside whether or not the disk exists in the casing unless it is displayed on the display unit. For this reason, there is a risk of erroneous insertion such that another disk is inserted into the housing while the disk is present in the housing. Incorrect insertion may cause problems such as scratching the disc.

In the disc device of Patent Document 1, it seems that no erroneous insertion occurs because the lid closes the disc insertion slot when the disc is present in the housing. However, as shown in FIG. 4 of Patent Document 1, the disk device disclosed in Patent Document 1 is normally used while being housed in an outer case, and therefore whether or not the lid blocks the disk insertion opening. Cannot be recognized from the outside of the outer case. For this reason, there is a risk of erroneous insertion such that another disk is inserted into the opening of the outer case while the disk is present in the housing.

In addition, the device of Patent Document 2 is configured to prohibit recording / reproduction with respect to the disc when the dust-proof lid opens the insertion slot, but the dust-proof lid is left open. There can be. Further, the device of Patent Document 2 is not configured to prevent another cartridge from being inserted into the housing in a state where the cartridge exists in the housing.

Therefore, an object of the present invention is to solve the above-described problem, and to provide a disc device that can prevent foreign matter from entering and prevent erroneous insertion of the disc.

In order to achieve the above object, the present invention is configured as follows.
According to the present invention, a disk transport mechanism for performing a disk transport operation for transporting a disk inserted from a disk insertion slot to a reproducible position;
A disk mounting mechanism for performing a disk mounting operation for mounting the disk transported to the reproducible position on the turntable in order to put the disk in a reproducible clamp state;
A lid provided so as to be movable by manual operation at a closed position for closing the disk insertion opening from the outside and an opening position for exposing the disk insertion opening to the outside;
Holding the lid moved to the closed position at the closed position, and holding the lid moved to the opened position at the opened position;
A lid opening / closing switching mechanism for switching the holding state by the holding mechanism in conjunction with the opening / closing operation of the lid;
A slot-in type disk device comprising:
The disk mounting mechanism includes an operating member that moves in conjunction with the disk mounting operation,
The lid opening / closing switching mechanism holds the lid in the open position by the holding mechanism using the moving force of the operating member when the disc is inserted when the disc is inserted into the disc insertion slot. There is provided a disk device configured to release the applied state and automatically move the lid from the open position to the closed position.

According to the disk device of the present invention, since the lid for closing the disk insertion port from the outside is provided, it is possible to prevent foreign matter from entering the apparatus. In addition, when the disc is inserted into the disc insertion slot, the lid is automatically moved to the closed position using the moving force of the operating member, so that the disc exists on the turntable. It is possible to prevent the lid from being left in the open position. As a result, it is possible to further prevent foreign matter from entering the apparatus and to prevent erroneous insertion of the disk. Further, since the lid is moved to the closing position by using the moving force of the operating member of the disk mounting mechanism, it is not necessary to provide a separate drive source for opening and closing the lid, and it is also necessary to separately perform the lid closing operation. Absent.

These and other objects and features of the invention will become apparent from the following description taken in conjunction with the preferred embodiments with reference to the accompanying drawings. In this drawing,
FIG. 1A is a perspective view of a disk device according to an embodiment of the present invention, and shows a state where a lid is located at a closed position; FIG. 1B is a perspective view of the disk device according to the embodiment of the present invention, and shows a state where the lid is located at the open position, FIG. 2A is a perspective view showing an attachment state of a disk drive unit built in the disk device according to the embodiment of the present invention and a lid, and is a diagram showing a state in which the lid is located at a closed position; FIG. 2B is a perspective view showing an attachment state of the disk drive unit built in the disk device according to the embodiment of the present invention and the lid, and is a view showing a state where the lid is located at the open position; FIG. 3 is an exploded perspective view showing a part of components constituting a disk drive unit built in the disk device according to the embodiment of the present invention. FIG. 4 is a plan view showing the internal structure of the disk drive unit shown in FIG. FIG. 5 is a top view partially showing the configuration of parts related to the opening / closing operation of the lid, FIG. 6 is a perspective view partially showing the configuration of parts related to the opening / closing operation of the lid, FIG. 7 is a perspective view showing the configuration of the slide cam member and the kick arm, FIG. 8A is a side view partially showing a configuration of parts related to the opening / closing operation of the lid, and is a diagram showing a state where the lid is located at the closed position; FIG. 8B is a side view partially showing a configuration of parts related to the opening / closing operation of the lid, and is a diagram showing a state where the lid is located at the open position; FIG. 9 is a front view showing the positional relationship between the disc insertion opening of the disc drive unit and the lid when the lid is located at the closed position; FIG. 10 is a top view showing a state immediately after a disc is inserted into the disc drive unit shown in FIG. FIG. 11 is a top view showing a state in the middle of conveying the disk into the disk drive unit shown in FIG. FIG. 12 is a top view showing a state in which the disc is transported to a reproducible position inside the disc drive unit shown in FIG. FIG. 13 is a top view showing the positional relationship of the guide lever, centering member, trigger lever, and slide cam member when the disc is loaded. FIG. 14 is a top view showing a state where the loading of the disc further proceeds from the state shown in FIG. FIG. 15 is a top view showing the attachment state of the pair of roller arms and the pair of link arms, FIG. 16A is a bottom view showing a state in which a pair of roller arms is rotated in a direction approaching each other; FIG. 16B is a bottom view showing a state in which the pair of roller arms are rotated away from each other; FIG. 17A is a perspective view showing the positional relationship between the intermediate chassis and the pair of slide cam members when the turntable is in a lowered state; FIG. 17B is a perspective view showing the positional relationship between the intermediate chassis and the pair of slide cam members when the turntable is lowered, as seen from an angle different from FIG. 17A; FIG. 18 is a top view showing the positional relationship between the slide cam member and the link arm when the turntable is in a lowered state, FIG. 19A is a perspective view showing the positional relationship between the intermediate chassis and the pair of slide cam members when the turntable is in a raised state; FIG. 19B is a perspective view showing the positional relationship between the intermediate chassis and the pair of slide cam members when the turntable is raised, as seen from an angle different from FIG. 19A; FIG. 20 is a top view showing the positional relationship between the slide cam member and the link arm when the turntable is in a raised state, FIG. 21A is an explanatory diagram showing the positional relationship of components related to the lid when the disk is not mounted on the turntable and the lid is located at the closed position; FIG. 21B is an explanatory diagram showing the positional relationship of components related to the lid body in the middle of the disc being mounted on the turntable and the lid body moving from the closed position to the open position; FIG. 21C is an explanatory diagram showing the positional relationship of components related to the lid when the disc is not mounted on the turntable and the movement of the lid to the open position is completed, FIG. 22A is an explanatory diagram showing the positional relationship of components related to the lid immediately after the disc is inserted with the lid positioned at the open position, FIG. 22B is an explanatory diagram showing a positional relationship of components related to the lid body in the middle of moving the lid body from the open position to the closed position in conjunction with the disk mounting operation; FIG. 22C is an explanatory diagram showing a positional relationship of components related to the lid when the disk mounting operation and the movement of the lid to the lid closing position are completed; FIG. 23A is an explanatory diagram showing the positional relationship of components related to the lid when the disc is mounted on the turntable and the lid is located at the open position; FIG. 23B is an explanatory diagram showing the positional relationship of components related to the lid body during the disc ejection operation; FIG. 23C is an explanatory diagram showing the positional relationship of components related to the lid when the disc ejection operation is completed, FIG. 24 is a block diagram showing a control-related configuration of the disk device according to the embodiment of the present invention. FIG. 25 is a flowchart showing a control flow of the disk device according to the embodiment of the present invention.

According to the first aspect of the present invention, a disk transport mechanism for performing a disk transport operation for transporting a disk inserted from a disk insertion slot to a reproducible position;
A disk mounting mechanism for performing a disk mounting operation for mounting the disk transported to the reproducible position on the turntable in order to put the disk in a reproducible clamp state;
A lid provided so as to be movable by manual operation at a closed position for closing the disk insertion opening from the outside and an opening position for exposing the disk insertion opening to the outside;
Holding the lid moved to the closed position at the closed position, and holding the lid moved to the opened position at the opened position;
A lid opening / closing switching mechanism for switching the holding state by the holding mechanism in conjunction with the opening / closing operation of the lid;
A slot-in type disk device comprising:
The disk mounting mechanism includes an operating member that moves in conjunction with the disk mounting operation,
The lid opening / closing switching mechanism holds the lid in the open position by the holding mechanism using the moving force of the operating member when the disc is inserted when the disc is inserted into the disc insertion slot. There is provided a disk device configured to release the applied state and automatically move the lid from the open position to the closed position.

According to the second aspect of the present invention, when the lid is moved from the lid position to the open position by manual operation with the disc being mounted on the turntable, the disc mounting mechanism is In the first aspect, the disc discharge operation for releasing the clamp state of the disc and automatically carrying out the disc released from the clamp state to the disc insertion port by the disc transport mechanism is automatically performed. A disk device as described is provided.

According to the third aspect of the present invention, a drive source that generates a drive force for driving the disk transport mechanism and the disk mounting mechanism;
A control unit for controlling the drive source;
A disk mounting detection unit for detecting whether or not the disk is mounted on the turntable;
A lid open / close detection unit for detecting an open / closed state of the lid;
Further comprising
The control unit detects that the lid opening / closing detection unit detects that the lid body has moved from the closed position to the open position, and that the disc is mounted on the turntable. The disc device according to the second aspect is provided that controls the drive source so that the disc ejection operation is performed when a detection unit detects the disc drive.

According to a fourth aspect of the present invention, the lid opening / closing switching mechanism is configured such that when the operating member moves during the disc ejection operation, the moving force of the operating member is not transmitted to the holding mechanism. The disk device according to the second or third aspect, wherein the disk device is configured to maintain the state of being held at the opened position.

According to the fifth aspect of the present invention, the lid opening / closing switching mechanism comprises:
A lid body configured to move the lid body between the closed position and the open position by rotating about a rotation axis disposed inside the outer case of the disk device. With an arm,
The lid arm is rotated by utilizing the moving force of the actuating member during the disk mounting operation, thereby releasing the state where the lid is held at the open position by the holding mechanism, The disc device according to the first aspect, configured to move a lid from the open position to the closed position, is provided.

According to the sixth aspect of the present invention, the lid opening / closing switching mechanism comprises:
A kick arm rotatably provided on the operating member;
A lid body configured to move the lid body between the closed position and the open position by rotating about a rotation axis disposed inside the outer case of the disk device. An arm, and
The kick arm has a cam portion at a position away from the rotation axis of the kick arm,
The cam portion is biased so as to contact the operating member,
The lid arm has an engaging portion engageable with the cam portion,
When the kick arm moves together with the actuating member during the disk mounting operation, the lid arm engagement portion engages with the kick arm cam portion, and the lid arm rotates, and the lid When the body arm rotates, the state in which the lid body is held at the open position by the holding mechanism is released and the lid body moves to the closed position. When the kick arm moves, the engaging portion of the lid arm engages with the cam portion of the kick arm, and the kick arm resists the urging force without rotating the lid arm. 5. The device according to any one of the second to fourth aspects, configured to rotate in a direction away from the lid arm and to maintain the state where the lid is held at the open position by the holding mechanism. A disk device is provided.

According to a seventh aspect of the present invention, the holding mechanism includes a spring member that urges the lid arm in the rotation direction,
The spring member is configured such that the direction in which the lid arm is urged is reversed while the lid arm is rotating so as to move the lid from the open position to the closed position. A disk device according to the fifth or sixth aspect is provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all of the following drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

<Embodiment>
Hereinafter, a disk device according to an embodiment of the present invention will be described. 1A and 1B are perspective views of a disk device according to an embodiment of the present invention.

1A and 1B, reference numeral 1 denotes an outer case of the disk device according to the present embodiment. An opening 1b through which the inserted disc 200 can pass is formed in the front wall 1a of the exterior case 1, and a lid 2 is provided so as to close the opening 1b. The lid 2 is provided to be movable in the directions of arrows B1 and B2 (substantially up and down) so that the opening 1b can be opened and closed. FIG. 1A shows a state in which the lid body 2 is located at the lid closing position 2A that closes the opening 1b, and FIG. 1B shows a state in which the lid body 2 is located at the lid opening position 2B that opens the opening 1b. Show.

As shown in FIG. 1A, when the lid 2 is located at the closed position 2A, the front surface of the lid 2 is configured to be substantially flush with the front surface of the front wall 1a. Further, as shown in FIG. 1B, when the lid body 2 is located at the lid opening position 2B, the disc insertion port 101a provided inside the outer case 1 is exposed to the outside from the lid body 2. Yes. When the lid 2 is located at the open position 2B, the upper surface of the lid 2 functions as a guide for guiding the disc 200 to the disc insertion slot 101a.

The lid 2 is configured to be movable by the user's fingers (manual operation). The user can move the lid body 2 to the lid opening position 2B shown in FIG. 1B by pressing the lid body 2 positioned at the lid closing position 2A as shown in FIG. 1A in the arrow B2 direction with fingers. . Further, the user can move the lid 2 to the closed position 2A shown in FIG. 1A by pushing up the lid 2 located at the open position 2B in the direction of the arrow B1 with fingers as shown in FIG. 1B. it can. At the corner between the front surface and the upper surface of the lid 2, a recess 2 a that is pressed by a finger is formed so that the user can easily press the lid 2 from the closed position 2 </ b> A to the open position 2 </ b> B. Yes.

Next, the positional relationship between the disk drive unit 100 built in the outer case 1 and the lid 2 will be described with reference to FIGS. 2A and 2B. 2A and 2B are perspective views showing how the disk drive unit 100 and the lid 2 are attached. FIG. 2A shows a state where the lid body 2 is located at the lid closing position 2A, and FIG. 2B shows a state where the lid body 2 is located at the lid opening position 2B.

2A and 2B, a lid arm 2b is coupled to one side of the lid 2, and a lid arm 2c is coupled to the other side of the lid 2. The lid arm 2 b is rotatably attached to the outer surface of one side wall of the housing 101 of the disk drive unit 100. The lid arm 2c is rotatably attached to the outer surface of the other side wall of the casing 101. A toggle spring 4 as an example of a spring member is attached to the lid arm 2b. The toggle spring 4 urges the lid arm 2b so that the lid 2 is held at either the closed position 2A or the opened position 2B. The configuration of the toggle spring 4 will be described in detail later.

Next, the configuration of the disk drive unit 100 built in the outer case 1 will be described with reference to FIGS. FIG. 3 is an exploded perspective view showing parts constituting the disk drive unit 100 as a unit. FIG. 4 is a top view showing the internal structure of the disk drive unit 100. The disk drive unit 100 is a slot-in apparatus configured to carry the disk 200 to a reproducible position in the housing 101 without using a tray.

As shown in FIG. 3, the disk drive unit 100 includes a housing 101 that is an outer shell of the unit. On the front surface of the housing 101, the above-described disc insertion slot 101a is provided. The disc insertion slot 101 a is closed from the inside of the housing 101 by the dust cover 3. The dust-proof cover 3 includes an elastic material sheet 3a such as felt. A slit 3b through which the disk 200 can pass is formed at a substantially central portion of the elastic sheet 3a. When the tip of the disk 200 is inserted into the housing 101 through the slit 3b and the disk insertion port 101a while elastically deforming the dust-proof cover 3, a later-described disk transport mechanism disposed in the housing 101 is driven, The disc 200 is conveyed to a reproducible position.

Near the disc insertion slot 101 a of the housing 101, a guide portion 5 a of the roller base 5 that guides the lower side of the disc 200 and an upper guide 5 b that guides the upper side of the disc 200 are provided. The roller base 5 rotatably holds a pair of roller arms 7a and 7b that function as a guide and a driving force transmission unit for conveying the disk 200 into the housing 101 (see FIG. 10). A pair of rubber rollers 6a and 6b are rotatably provided on the roller arm 7a as disk transport rollers. A pair of rubber rollers 6c and 6d are fixed to the roller arm 7b as disk transport rollers. The rubber roller 6a is provided integrally with the roller gear 6e. The rubber roller 6b is provided integrally with the roller gear 6f.

The roller arm 7a is provided with a gear train 8 composed of gears 8a to 8c (see FIG. 15). The gear 8c meshes with the gear 10a in the gear train 10 including the gears 10a to 10e shown in FIG. The gear 10e meshes with a worm gear 9a included in a motor 9 that is an example of a drive source. Accordingly, the driving force of the motor 9 is transmitted to the gear train 8 via the worm gear 9a and the gears 10e-10d-10c-10b and the gear 10a of the gear train 10.

Further, since the gear 10f meshes with the lower gear of the gear 10d, the driving force of the motor 9 is transmitted at the same time. A pinion 10 is integrally formed coaxially with the gear 10f. The pinion 10g is configured to be able to mesh with a rack 30 provided on a slide cam member 16 described later. However, in an initial state where the disk 200 is not inserted, the pinion 10g is not meshed with the rack 30.

The gear 10c is pivotally supported by the clutch plate 11 so as to be rotatable. The clutch plate 11 is provided so as to be rotatable about a vertical direction (also referred to as a thickness direction) as a rotation axis. The rotation of the clutch plate 11 is performed by sliding the slide cam member 16 in the arrow A2 direction, as will be described later. As the clutch plate 11 rotates, the gear 10c moves to disengage the gear 10b, and transmission of the driving force is transmitted only to the gear 10f and the coaxial pinion 10g. The roller base 5, the gear train 8, the motor 9, and the gear train 10 are held by a mechanical chassis 12 disposed in the housing 101 so as to be rotatable or slidable as necessary.

Further, as shown in FIG. 3, a turntable 13 on which a disk 200 is placed, a traverse mechanism (hereinafter referred to as a traverse) 15 having an optical pickup 14 and a mechanism for driving the optical pickup 14 are disposed inside the housing 101. Has been. The turntable 13 is configured integrally with a spindle motor (not shown) that generates a rotational force that rotates the disk 200. The traverse 15 is configured to be pivotable in the vertical direction and is floatingly supported by the mechanical chassis 12 with a certain elasticity. By turning the traverse 15 in the vertical direction, the disc 200 conveyed to the reproducible position can be mounted on the turntable 13.

Also, as shown in FIG. 4, a slide cam member 16 is provided on the right side of the mechanical chassis 12 so as to be slidable in the direction of the arrow A1 or A2. On the left side of the mechanical chassis 12, a slide cam member 18, which is an example of an operating member, is provided so as to be slidable in the arrow A1 or A2 direction. The slide cam member 16 and the slide cam member 18 are connected to a lower portion of the mechanical chassis 12 by a link arm 17 (see FIG. 2) that is rotatably supported. It is configured to move.

Further, the mechanical chassis 12 is provided with an intermediate chassis 19 that supports the traverse 15 so as to be rotatable by being pivotally supported by pins 19a and 19b. The intermediate chassis 19 is provided with pins 19c and 19d that engage with the lift cams 16a and 18a (see FIG. 2) formed on the slide cam members 16 and 18, respectively. When the slide cam members 16 and 18 slide in opposite directions, the pins 19c and 19d move up and down by moving along the lift cams 16a and 18a, and the intermediate chassis 19 moves the pins 19a and 19b around the pivot shaft. Rotate as

The front part of the traverse 15 (on the disk insertion port 101a side) is fixed to the front part of the intermediate chassis 19 at one place on each of the left and right sides via floating rubbers 20a and 20b. The rear portion of the traverse 15 is floatingly supported by the mechanical chassis 12 via floating rubbers 20c and 20d. When the intermediate chassis 19 rotates about the pins 19a and 19b as the rotation axis, the traverse 15 rotates about the floating rubbers 20d and 20c as the rotation axis. As the traverse 15 rotates, the turntable 13 moves up and down.

An upper base 22 is arranged above the turntable 13 so as to cover the upper part of the traverse 15. An opening 22 a is provided at a position facing the turntable 13 of the upper base 22. The upper base 22 is provided with clamper lifters 23a and 23b that are opposed to each other with the opening 22a interposed therebetween so as to be slidable in a direction toward or away from each other. A clamper 21 for clamping the disk 200D on the turntable 13 is provided above the turntable 13.

The clamper 21 is supported by the respective ends of the clamper lifters 23a and 23b when the pair of clamper lifters 23a and 23b are positioned close to each other. At this time, the clamper 21 is not in contact with the disk 200 placed on the turntable 13. When the pair of clamper lifters 23a, 23b is moved away from this state, the clamper 21 moves so as to approach the turntable 13 through the opening 22a.

The clamper 21 is provided with an iron yoke 21a. When the disc 200 is placed on the turntable 13, the iron yoke 21 a is pulled by the magnetic force of the magnet provided on the turntable 13, so that the disc 200 is sandwiched between the clamper 21 and the turntable 13. It is. As a result, the disc 200 is mounted on the turntable 13 and a reproducible clamped state is obtained. Further, when the pair of clamper lifters 23a and 23b are moved in a direction approaching each other from the clamped state, the clamper 21 pressed against the pair of clamper lifters 23a and 23b by the movement is separated from the turntable 13 against the magnetic force. To move. As a result, the clamped state is released.

On the lower surface of the upper base 22, a centering member 24 for performing centering so that the disk 200 is directed to a reproducible position is slidably provided. Further, a trigger lever 25 that rotates by being pressed against the disk 200 conveyed to a reproducible position is provided on the lower surface of the upper base 22 so as to be rotatable (FIGS. 13 and 14). reference). In addition, a guide lever 26 is rotatably provided on the lower surface of the upper base 22 so as to stably hold the disc 200 inserted in the housing 101 between the turntable 13 and the clamper 21. Yes. The upper base 22 is fixed to the mechanical chassis 12. The mechanical chassis 12 is fixed to the housing 101.

In addition, a board 27 on which detection switches 27a to 27c are mounted is attached to the mechanical chassis 12 (see FIG. 3). The detection switch 27a is a switch that detects the disc 200 inserted through the disc insertion slot 101a. As shown in FIG. 15, the detection switch 27a is operated by a disk detection lever 29 provided on the roller arm 7b. The detection switch 27b is a switch that detects the end of the disc transport operation when the disc 200 is ejected. The detection switch 27b is operated by the lower surface of the roller arm 7b that rotates when the disk 200 is inserted and ejected. The detection switch 27c is an example of a disk mounting detection unit, and is a switch that detects whether or not the disk 200 is transported to a reproducible position and mounted on the turntable 13. The detection switch 27 c is operated by the slide cam member 18. The substrate 27 is provided at a position facing the roller arm 7 b attached to the roller base 5.

Further, as shown in FIGS. 15, 16A, and 16B, link arms 28a and 28b are rotatably provided on the roller base 5. The link arms 28a and 28b are configured to engage with the roller arms 7a and 7b and rotate the roller arms 7a and 7b in synchronization with each other. The roller arm 7a is rotatably provided in the directions of arrows A5 and A7 about the rotation shaft 7a-1. The roller arm 7a is urged in the direction of arrow A7 by a torsion coil spring 7a-2. The roller arm 7b is provided so as to be rotatable in the directions of arrows A6 and A8 about the rotation shaft 7b-1. The roller arm 7b is urged in the direction of arrow A8 by a torsion coil spring 7b-2.

In this embodiment, the disk 200 transports the disk 200 to a reproducible position by the gear train 10, the gear train 8, the rubber rollers 6a to 6d, the roller gears 6e and 6f, the roller arms 7a and 7b, and the link arms 28a and 28b. A transport mechanism is configured. In this embodiment, the gears 10d to 10f, the pinion 10g, the slide cam member 16, the link arm 17, the slide cam member 18, the intermediate chassis 19, the traverse 15, the floating rubbers 20a to 20d, the clamper 21, the upper base 22, In addition, the clamper lifters 23a and 23b constitute a disk mounting mechanism that is mounted on the turntable 13 so that the disk 200 conveyed to the reproducible position is in a reproducible clamped state. In this embodiment, the clutch plate 11, the slide cam member 16 that drives the clutch plate 11, and the trigger lever 25 transmit the driving force generated by the driving source to only one of the disk transport mechanism and the disk mounting mechanism. Thus, a transmission path switching mechanism that switches the transmission path of the driving force is configured. Here, as common components related to driving of each mechanism, there are a motor 9 and a worm gear 9a which are driving sources, and some of which are used for driving a plurality of mechanisms such as a gear train 10. is there. Needless to say, the disk transport mechanism, disk mounting mechanism, and transmission path switching mechanism of the present invention are not limited to the above-described configuration.

Next, the configuration of the disk drive unit 100 will be described in more detail with reference to FIGS. FIG. 4 shows a state in which the components except the components related to the casing 101, the roller base 5 and the components related to the upper base 22 are attached to the mechanical chassis 12 in the overall configuration shown in FIG. It is a top view.

As shown in FIG. 4, the turntable 13 and the optical pickup 14 are arranged on the traverse 15 in the approximate center of the disk drive unit 100. A substantially U-shaped intermediate chassis 19 is disposed so as to surround the front and both sides of the traverse 15. A slide cam member 16 is disposed on the right side of the intermediate chassis 19. A slide cam member 18 is disposed on the left side of the intermediate chassis 19. The slide cam member 16 and the slide cam member 18 are slidably disposed in the same front-rear direction (arrow A1 and A2 directions) as the conveying direction of the disk 200. In an initial state where the disk 200 is not conveyed, the slide cam member 16 is urged in the direction of the arrow A1 by a spring 16j stretched between the mechanical chassis 12 and the slide cam member 16. The slide cam member 18 connected to the slide cam member 16 via the link arm 17 is urged in the arrow A2 direction. Pins 19c and 19d provided at both ends of the front portion of the intermediate chassis 19 are slidably engaged with elevating cams 16a and 18a (see FIG. 3) formed on the slide cam members 16 and 18, respectively. Pins 19 a and 19 b provided at both ends of the rear portion of the intermediate chassis 19 are rotatably held by bearing portions 12 a and 12 b formed on the mechanical chassis 12. With this configuration, the intermediate chassis 19 is rotated about the pins 19a and 19b as the slide cam members 16 and 18 slide in opposite directions, and the front portion of the intermediate chassis 19 is raised and lowered.

Here, when the slide cam members 16 and 18 slide in the opposite directions, the driving force of the motor 9 is such that the worm gear 9a and the gears 10e and 10d are driven with the rack 30 of the slide cam member 16 and the pinion 10g engaged with each other. , 10f to the pinion 10g. The pinion 10g is pressed by the disc 200 conveyed to the reproducible position on the turntable 13, and the trigger lever 25 is rotated. The pinion 10g is pressed by the trigger lever 25 and the slide cam member 16 is slightly slid in the arrow A2 direction. By doing so, it meshes with the rack 30.

That is, when the disc 200 is conveyed to a reproducible position by driving the motor 9, the slide cam members 16, 18 slide in opposite directions by the action of the trigger lever 25 and the transmission switching of the driving force of the motor 9. . As a result, the intermediate chassis 19 and the traverse 15 are raised, the disk 200 is mounted on the turntable 13, and the disk 200 is in a clamped state where the disk 200 can be reproduced.

Further, as shown in FIGS. 3 and 4, the slide cam member 18 is provided with a kick arm 31 on the back side opposite to the disc insertion port 101a. The kick arm 31 is provided so as to be rotatable with respect to the slide cam member 18 about a rotation shaft 31a.

Next, the configuration of components related to the opening / closing operation of the lid 2 will be described with reference to FIGS. FIG. 5 is a top view showing a part of the configuration of parts related to the opening / closing operation of the lid 2, and FIG. 6 is a perspective view thereof. FIG. 7 is a perspective view showing the configuration of the slide cam member 18 and the kick arm 31. 8A and 8B are side views showing a part of the configuration of parts related to the opening / closing operation of the lid body 2. FIG. 8A shows a state where the lid 2 is located at the closed position, and FIG. 8B shows a state where the lid 2 is located at the open position. FIG. 9 is a front view showing the positional relationship between the disc insertion slot 101a and the lid 2 of the disc drive unit 100. FIG.

In addition to the above-described lift cam 18a, the slide cam member 18 includes a protrusion 18b that contacts the detection switch 27c, a cam 18c for moving the clamper lifter 23b, and a stopper that restricts the rotation of the kick arm 31 described above. 18d is formed. A cam portion 31 b that can contact the stopper 18 d of the slide cam member 18 is formed at one end portion of the kick arm 31. As shown in FIG. 5, the cam portion 31 b is formed so as to protrude to the outer side (side wall side of the housing 101) than the main body portion of the kick arm 31. An elastically deformable spring piece 31 c is formed at the other end of the kick arm 31. The spring piece 31 c is formed so as to be engageable with an engaging portion 18 e provided on the slide cam member 18. The kick arm 31 is normally urged in the direction of the arrow C1 about the rotation shaft 31a when the tip of the spring piece 31c contacts the engaging portion 18e, and the cam upper surface 31b-1 of the cam portion 31b The member 18 is held in contact with the lower surface of the stopper 18d. In this state, when a constant turning force is applied to the kick arm 31 in the direction of the arrow C2, the kick arm 31 rotates in the direction of the arrow C2 around the rotation shaft 31a against the urging force of the spring piece 31c. To do. Thereby, a gap is formed between the cam upper surface 31b-1 of the cam portion 31b and the lower surface of the stopper 18d.

Further, a bearing portion (not shown) is provided on the outer surface of one side wall of the casing 101, and the rotation shaft 2d of the lid arm 2b is rotatably supported by the bearing portion. The end portion of the lid arm 2 b is attached to one side portion of the lid body 2. Similarly, a bearing portion (not shown) is provided on the outer surface of the other side wall of the housing 101, and the rotation shaft 2d of the lid arm 2c is rotatably supported by the bearing portion. An end portion of the lid arm 2 c is attached to the other side portion of the lid body 2. As the pair of lid arms 2b and 2c pivot about the pivot shaft 2d, the lid 2 pivots in a substantially vertical direction (arrow B1 and B2 directions).

Further, the lid arm 2b has an extension 2e that extends to the back side opposite to the lid 2 with respect to the rotating shaft 2d. The extension portion 2e is provided with an engagement portion 2f that can be engaged with the cam lower surface 31b-2 of the cam portion 31b of the slide cam member 18 through the opening 101b formed on one side wall of the housing 101. It has been. The engaging portion 2f moves substantially vertically in the opening 101b when the lid arm 2b rotates about the rotation shaft 2d. That is, when the lid 2 moves from the closed position 2A to the open position 2B, the engaging portion 2f rises, and when the lid 2 moves from the open position 2B to the closed position 2A, the engaging portion 2f. Descends. As shown in FIG. 8B, when the engaging portion 2f is raised, the cam lower surface 31b-2 of the cam portion 31b of the slide cam member 18 can be engaged.

Also, the lid arm 2b is formed with a recess 2g for accommodating the toggle spring 4 and a notch 2h with which the end 4b of the toggle spring 4 is engaged. An engagement hole 101 c that engages with the end 4 a of the toggle spring 4 is formed on one side wall of the housing 101.

The toggle spring 4 is attached so that the end 4a engages with the engagement hole 101c of the housing 101 and the end 4b engages with the notch 2h of the lid arm 2b. As a result, the toggle spring 4 rotates about the end 4a as a fulcrum and the end 4b as an action point when the lid arm 2b rotates about the rotation axis 2d.

Further, as shown in FIG. 8A, the toggle spring 4 is configured such that when the end 4b as an action point is located above a straight line L1 passing through the rotation shaft 2d and the end 4a of the lid arm 2b, The arm 2b is urged in the direction of arrow B1. Due to the biasing force of the toggle spring 4, the lid body 2 is held at the closed position 2A. As shown in FIG. 8B, the toggle spring 4 urges the lid arm 2b in the direction of the arrow B2 when the end 4b, which is the action point, is positioned below the straight line L1. Due to the biasing force of the toggle spring 4, the lid body 2 is held at the open position 2B. That is, the toggle spring 4 functions as a holding mechanism that holds the lid 2 in a state where the lid 2 is located at either the closed position 2A or the opened position 2B.

The movement of the lid 2 from the closed position 2A to the open position 2B is performed by pressing the upper part of the lid 2 against the urging force of the toggle spring 4 in the direction of arrow B1 with the fingers in the direction of arrow B2. It can be carried out. When the end 50b, which is the point of action, moves downward from the straight line L1 due to the pressing, the direction in which the urging force of the toggle spring 4 acts is reversed from the arrow B1 direction to the arrow B2 direction. Thereby, the cover body 2 is hold | maintained in the open position 2B, as shown to FIG. 8B.

Further, as shown in FIGS. 8A and 8B, a lid opening / closing detection switch 32, which is an example of a lid opening / closing detection unit, is provided below the lid arm 2b. The lid open / close detection switch 32 is provided on a holding portion 1 d formed on the bottom wall 1 c of the exterior case 1. The lid opening / closing switch 32 includes an operation lever 32a that can come into contact with the lid arm 2b. The lid opening / closing switch 32 is turned on when the operation lever 32a contacts the lid arm 2b, and is turned off when the operation lever 32a does not contact the lid arm 2b. The open / closed state of the lid 2 can be detected based on the on / off state of the lid open / close detection switch 32.

When the lid 2 is located at the open position 2B, as shown in FIG. 9, the upper surface of the lid 2 is located below the disc insertion slot 101a, and the disc 200 is inserted into the disc insertion slot 101a. It can be used as a guide when doing so. As shown in FIG. 9, the disc insertion slot 101a has a guide surface that gently curves into a concave shape. As described above, the guide portion 5a and the upper guide 5b of the roller base 5 are provided in the vicinity of the disc insertion slot 101a. The guide portion 5a and the upper guide 5b of the roller base 5 have guide surfaces that are gently curved in a concave shape, like the disc insertion slot 101a. The disc drive unit 100 is guided while being guided by the peripheral portion of the slit 3b of the dust cover 3 so that the disc 200 passes through the substantially central portion of the disc insertion opening 101a and the substantially central portion between the guide portion 5a and the upper guide 5a. It is conveyed to the inside.

Next, a disk transport operation for transporting the disk 200 inserted into the housing 101 to a reproducible position will be described with reference to FIGS. 10 to 12 are top views showing how the disk 200 is conveyed.

FIG. 10 shows a state immediately after the disk 200 is inserted into the housing 101. At this time, the disc 200 is in contact with the pair of right rubber rollers 6a and 6b and the pair of left rubber rollers 6c and 6d. At this time, the disk detection lever 29 provided on the roller arm 7b is pressed and rotated by the disk 200, whereby the detection switch 27a is actuated to detect that the disk 200 has been inserted through the disk insertion slot 101a. To do. When the detection switch 27a is activated, the motor 9 starts to drive. The driving force of the motor 9 is transmitted to the rubber rollers 6a and 6b via the gear train 10 and the gear train 8. As a result, the rubber rollers 6a and 6b rotate in the direction of the arrow A3, and the disc 200 is driven by the rotational driving force and frictional force of the rubber roller 6b and the frictional force of the non-rotating rubber roller 6d facing the rubber roller 6b and the disc 200. Rotates around the rubber roller 6d (more specifically, the contact portion with the disk 200) in the direction of arrow A4. The disc 200 is conveyed in the direction of the arrow A1 by the rotation in the direction of the arrow A4.

10, when the disk 200 is conveyed in the direction of the arrow A1, the space between the rubber roller 6b and the rubber roller 6d is expanded by the disk 200. As a result, the roller arm 7a rotates in the direction of arrow A5 and the roller arm 7b rotates in the direction of arrow A6 against the urging force of the torsion coil springs 7a-2 and 7b-2 shown in FIGS. 16A and 16B. To do. That is, the pair of roller arms 7a and 7b rotate in a direction away from each other (opening direction). The rubber rollers 6a and 6c are once separated from the peripheral edge of the disk 200 by the rotation of the roller arms 7a and 7b. Thereafter, the disk 200 is further conveyed in the direction of the arrow A1, and when the central portion of the disk 200, which is the left and right maximum diameter of the disk 200, passes between the rubber rollers 6b and 6d, the torsion coil springs 7a-2 and 7b shown in FIGS. Due to the urging force of 7b-2, the roller arm 7a rotates in the direction of arrow A7, and the roller arm 7b rotates in the direction of arrow A8. That is, the pair of roller arms 7a and 7b rotate in a direction (close direction) approaching each other. As a result, the rubber rollers 6a and 6c again come into contact with the peripheral edge portion of the disk 200, resulting in the state shown in FIG.

FIG. 11 shows a state where all of the rubber rollers 6a to 6d are in contact with the disk 200. From this state, the disc 200 is further conveyed in the direction of the arrow A1, whereby the disc 200 shown in FIG. 12 is conveyed to the reproducible position. The disc 200 is transported from the disc position 200a (see FIG. 10) immediately after being inserted into the housing 101 to the reproducible disc position 200c (see FIG. 12). pass. The disk position 200b is a position where the rotational force of the disk 200 is switched so as to be transmitted from the rubber rollers 6a and 6c instead of being transmitted from the rubber rollers 6b and 6d. That is, from the disk position 200b to the disk position 200c, the disk 200 rotates in the direction of arrow A4 as the rotation center of the rubber roller 6c by the rotational driving force of the rubber roller 6a. By rotation in the direction of arrow A4 with the rubber roller 6c as the rotation center, the disc 200 is further conveyed in the direction of arrow A1, and the disc 200 is conveyed to the disc position 200c shown in FIG. At this position, the operation of transporting the disc 200 ends.

When the disc 200 is transported to the position shown in FIG. 12, that is, the disc reproducible position facing the turntable 13, the trigger lever 25 detects the transport completion position of the disc 200, that is, the aforementioned disc position 200c. In the disk position 200c shown in FIG. 12, the transmission of the driving force by the motor 9 is switched from the conveyance driving of the disk 200 to the driving of the slide cam members 16 and 18 by the action of the trigger lever 25, and the clamping operation for mounting the disk FIG. 13 and FIG. 14 show the state of switching by the trigger lever 25.

Next, the operation of the guide lever 26, the centering member 24, the trigger lever 25, and the slide cam member 16 at the time of switching from the disk transport operation to the disk mounting operation will be described with reference to FIGS. 13 and 14 are top views showing the positional relationship among the guide lever 26, the centering member 24, the trigger lever 25, and the slide cam member 16 during the disc transport operation. In these figures, for the sake of convenience, a part is shown in a transparent view.

When the disc 200 is inserted through the disc insertion slot 101a and conveyed in the direction of the arrow A1, first, the vicinity of the tip end portion of the disc 200 comes into contact with the positioning guide 26b of the guide lever 26, and the height of the disc 200 in the thickness direction is first reached. The position is positioned. When the disc 200 is further conveyed in the direction of the arrow A1 in this state, the disc 200 rotates the guide lever 26 around the rotation shaft 26a. Thereafter, the disk 200 contacts the positioning contact portions 24a and 24b of the centering member 24, and the centering member 24 positions the position in the left-right direction (that is, is centered). When the disc 200 is further conveyed in the arrow A1 direction in this state, the disc 200 moves the centering member 24 in the arrow A1 direction. With the movement of the centering member 24, the trigger lever 25, in which the rotation shaft portion 25c engages with the guide cam 24e provided on the centering member 24, has the rotation shaft portion 25c as the first linear portion 24e− of the guide cam 24e. 1 is guided to the inclined cam portion 24e-2 and the second linear portion 24e-3, and when guided by the inclined cam portion 24e-2, the whole moves in a direction approaching the slide cam member 16. The rotation shaft 25c of the trigger lever 25 is provided so as not to move in the directions of arrows A1 and A2. By the movement of the trigger lever 25, the engagement between the slide cam pressing portion 25b of the trigger lever 25 and the first engagement portion 16b of the slide cam member 16 is released. When the disc 200 is further conveyed in the arrow A1 direction in this state, the disc 200 abuts against the disc abutment portion 25a of the trigger lever 25 and presses the trigger lever 25. As a result, the trigger lever 25 rotates in the direction of arrow A10 about the rotation shaft portion 25c, and the state shown in FIG. 13 is obtained. At this time, the slide cam pressing portion 25 b of the trigger lever 25 abuts on the second engagement portion 16 c of the slide cam member 16. This state is a state in which the trigger lever 25 detects that the transported disc 200 has been transported to the reproducible position. At this time, the rack 30 of the slide cam member 16 and the pinion 10g are not yet engaged with each other. Is in a state.

When the disc 200 is further conveyed in the direction of arrow A1 from the state shown in FIG. 13, the trigger lever 25 whose disc contact portion 25a is pressed by the disc 20 further rotates in the direction of arrow A10 about the rotation shaft portion 25c. To do. As a result, the slide cam pressing portion 25b of the trigger lever 25 presses the second engagement portion 16c of the slide cam member 16, and the slide cam member 16 slightly slides in the arrow A2 direction. As a result, as shown in FIG. 14, the rack 30 of the slide cam member 16 meshes with the pinion 10 g, and the slide cam member 16 is directly driven by the driving force of the motor 9. That is, the disc transport operation is completed and the disc loading operation is started.

Note that the state shown in FIG. 14 is a state in which the disc 200 is transported to the reproducible position. In the state shown in FIG. 14, the driving force of the motor 9 is transmitted to the pinion 10g, and the pinion 10g is rotating. For this reason, the rack 30 which meshes with the pinion 10g is driven, and the slide cam member 16 further slides in the arrow A2 direction. Along with this sliding, the slide cam member 18 connected to the slide cam member 16 via the link arm 17 slides in the arrow A1 direction. By sliding the slide cam members 16 and 18 in opposite directions, the mounting operation of the disc 200 onto the turntable 13 is performed as described above.

In the process of switching from the transport operation to the mounting operation of the disc 200, the portion of the trigger lever 25 that is in contact with the disc 200 such as the disc contact portion 25a is interlocked with the movement of the slide cam members 16 and 18. , Away from the disc 200. Thereby, there is no trouble in the mounting operation of the disk 200.

Next, the disc ejection operation will be described. In order to eject the disc 200, it is necessary to first lower the traverse 15 to release the clamped state of the disc 200 that is in a reproducible state, so that the disc 200 can be transported. Here, the description will be omitted, and the description will be made assuming that the disk 200 is located at the disk position 200c shown in FIG. 12, is released from the clamped state, and is sandwiched between the rubber rollers 6a and 6c.

First, since the motor 9 is already reversely driven to release the clamped state, the rubber rollers 6a and 6b rotate in the direction opposite to that when the disc 200 is loaded. Thereby, the disk 200 rotates the disk 200 in the direction opposite to the arrow A4 direction, with the rubber roller 6c as the rotation center. By rotating in the direction opposite to the arrow A4 direction, the disc 200 is conveyed in the direction opposite to the arrow A1 direction (that is, the arrow A2 direction).

When the disk 200 reaches the disk position 200b shown in FIG. 11 by conveying in the direction opposite to the arrow A1, the turning force of the disk 200 is transmitted from the rubber rollers 6b and 6d instead of being transmitted from the rubber rollers 6a and 6c. To be switched. As a result, the disk 200 rotates in the direction opposite to the arrow A4 direction with the rubber roller 6d as the rotation center. By rotating in the direction opposite to the arrow A4 direction, the disk 200 is further conveyed in the direction opposite to the arrow A1 direction. When the detection switch 27b detects that the disk 200 has been transported to the disk position 200a shown in FIG. 10 by transport in the direction opposite to the arrow A1 direction, the motor 9 stops driving. Thereby, the disc 200 ejection operation is completed.

Note that the disc 200 ejected to the disc position 200a shown in FIG. 10 can be taken out by the user's fingers. At this time, the disc 200 is held without jumping out of the housing 101 from the disc insertion port 101a by the clamping force and friction force of the rubber rollers 6a to 6d and the elastic force and friction force of the dust cover 3. .

Next, a configuration for moving the turntable 13 up and down will be described with reference to FIGS. 17A to 20.

17A and 17B are perspective views showing the positional relationship between the intermediate chassis 19 and the slide cam members 16 and 18 when the turntable 13 is in a lowered state (standby state in which no disc 200 is inserted). FIG. 18 is a top view showing the positional relationship between the slide cam members 16 and 18 and the link arm 17 when the turntable 13 is in the lowered state. In this state, the slide cam member 16 is urged in the arrow A1 direction by the spring 16j as described above with reference to FIG. The slide cam member 16 is connected to a slide cam member 18 via a link arm 17. The link arm 17 is provided to be rotatable about a rotation shaft 17a. For this reason, the slide cam member 18 is urged by the spring 16j in the direction of the arrow A2 opposite to the slide cam member 16. Accordingly, the kick arm 31 connected to the slide cam member 18 is also biased in the direction of the arrow A2. As a result, the kick arm 31 is held in a state where the kick arm 31 is positioned closest to the lid 2 as shown in FIG.

As shown in FIG. 18, the slide cam member 18 is formed with a protrusion 18b that can contact the detection switch 27c. When the disc 200 is transported to the reproducible position and the slide cam member 18 slides in the direction of the arrow A1, the protruding portion 18b comes into contact with the detection switch 27c and operates the detection switch 27c.

17A, 17B, and 18, the disk 200 is conveyed to the reproducible position and the slide cam member 16 is pressed by the slide cam pressing portion 25b of the trigger lever 25 as described above. 30 is engaged with the pinion 10g and continues until the slide cam member 16 starts to slide in the direction of the arrow A2. When the slide cam member 16 slides in the arrow A2 direction and the slide cam member 18 slides in the arrow A1 direction, the engagement pins 19c and 19d of the intermediate chassis 19 move along the lift cams 16a and 18a. . As a result, the front portion of the intermediate chassis 19 rises, the turntable 13 rises, and the disk 200 is sandwiched between the turntable 13 and the clamper 21. Thereafter, the protrusion 18b of the slide cam member 18 contacts the detection switch 27c, and the drive of the motor 9 is stopped. As a result, the disc 200 is completely loaded, and the states shown in FIGS. 19A, 19B, and 20 are obtained.

19A and 19B are perspective views showing the positional relationship between the intermediate chassis 10 and the slide cam members 16 and 18 when the turntable 13 is in the raised state (mounting completion state of the disk 200). FIG. 20 is a top view showing a positional relationship among the slide cam member 16, the slide cam member 18, and the link arm 17 when the turntable is in the raised state. At this time, the rack 30 and the pinion 10g remain engaged. In this state, the kick arm 31 is located at a position farthest from the lid 2. In this state, in order to eject the disk 200, the motor 9 is reversely driven, the rack 30 is driven via the pinion 10g, and the slide cam member 16 is in the direction opposite to that when the disk 200 is mounted. Maintained until it begins to slide in the direction.

Next, the opening / closing operation of the lid 2 performed in conjunction with the disk loading operation and the disk ejection operation will be described with reference to FIGS. 21A to 23C.

FIG. 21A shows a positional relationship of components related to the lid body 2 when the lid body 2 is positioned at the lid closing position 2A. In the state shown in FIG. 21A, the disc 200 is not mounted on the turntable 13. The lid 2 is held at the closed position 2A by the biasing force of the toggle spring 4 in the direction of arrow B1. The lid open / close detection switch 32 is in an off state because the operation lever 32a and the lid arm 2b are not in contact with each other. The slide cam member 18 is in an initial state where it has moved to a position closest to the lid 2. The cam portion 31b of the kick arm 31 is located in front of the engaging portion 2f of the lid arm 2b (on the lid 2 side).

21A, when the user presses the upper surface of the lid 2 in the arrow B2 direction, the lid arm 2b rotates about the rotation axis 2d in the arrow B2 direction. By the rotation of the lid arm 2b, the end 4b of the toggle spring 4 that engages with the lid arm 2b moves downward.

FIG. 21B shows a state in which the lid arm 2b is rotated in the direction of the arrow B2 until the end 4b of the toggle spring 4 is positioned on the straight line L1. When the end 4b of the toggle spring 4 passes the straight line L1 due to the rotation of the lid arm 2b in the direction of arrow B2, the direction in which the toggle spring 4 biases the lid arm 2b is changed from the direction of arrow B1 to the direction of arrow B2. Invert to. By the biasing force of the toggle spring 4 in the arrow B2 direction, the lid body 2 is held at the lid opening position 2B. Since the movement of the lid body 2 from the state shown in FIG. 21B to the state shown in FIG. 21C can be performed by the urging force of the toggle spring 4, the user covers the state from the state shown in FIG. 21A to the state shown in FIG. The lid 2 can be moved to the lid opening position 2B simply by pressing the body 2. The same applies to the case where the lid 2 is moved from the state shown in FIG. 21C to the state shown in FIG. 21A. That is, since the movement of the lid body 2 from the state shown in FIG. 21B to the state shown in FIG. 21A can be performed by the biasing force of the toggle spring 4, the user can move the lid from the state shown in FIG. 21C to the state shown in FIG. The lid 2 can be moved to the closed position 2A simply by pressing the body 2.

Further, the engagement part 2f of the lid arm 2b is raised from the position shown in FIG. 21A to the position shown in FIG. 21C by the rotation of the lid arm 2b in the direction of the arrow B2. At this time, the engaging portion 2 f does not engage with the cam portion 31 b of the kick arm 31.

When the lid arm 2b rotates from the position shown in FIG. 21B to the position shown in FIG. 21C, the lid arm 2b comes into contact with the operation lever 32a, and the lid open / close detection switch 32 is turned on. At this time, the lid 2 is located at the open position 2B, and the disc 200 can be inserted into the disc insertion slot 101a. It should be noted that while the user presses the lid 2 from the state shown in FIG. 21A to the state shown in FIG. 21C, the components arranged inside the disc drive unit 100 such as the slide cam member 18 and the kick arm 31 are the components of the disc 200. Since it is not mounted on the turntable 13, it does not change (move) at all.

Next, the operation of components related to the lid 2 when the disc 200 is inserted in the state where the lid 2 is located at the lid opening position 2B will be described with reference to FIGS. 22A to 22C.

FIG. 22A shows the positional relationship of components related to the lid 2 immediately after the disc 200 is inserted into the disc insertion slot 101a. The state of the disk 200 with respect to the disk drive unit 100 shown in FIG. 22A is the same as that in FIG. In the state where the lid body 2 is positioned at the lid opening position 2B, as described above, the lid opening / closing detection switch 32 is in the on state. In this state, when the detection switch 27a detects that the disk 200 has been inserted into the housing 101, the motor 9 is driven and the above-described disk transport operation is started. As a result, as described with reference to FIGS. 10 to 14, the disk 200 is transported to a position facing the turntable 13 by the disk transport mechanism, and is mounted on the turntable 13 by the disk mounting mechanism. .

When the disc 200 is mounted on the turntable 13, the slide cam member 18 slides in the arrow A1 direction as described above. As the slide cam member 18 slides in the arrow A1 direction, the kick arm 31 provided on the slide cam member 18 also slides in the arrow A1 direction at the same time. Thus, the cam lower surface 31b-2 of the cam portion 31b of the kick arm 31 is engaged with the engaging portion 2f of the lid arm 2b that is rising as shown in FIG. 22A. At this time, since the cam upper surface 31b-1 of the cam portion 31b abuts against the stopper 18d of the slide cam member 18 and the movement is restricted, the engaging portion 2f is pushed down by the inclined surface of the cam lower surface 31b-2. Will be. When the engaging portion 2f is pushed down, the lid arm 2b rotates in the arrow B1 direction (closing direction) against the urging force of the toggle spring 4 in the arrow B2 direction.

FIG. 22B shows a state in which the lid arm 2b is rotated in the direction of the arrow B1 until the end 4b of the toggle spring 4 is positioned on the straight line L1. When the end 4b of the toggle spring 4 passes through the straight line L1 due to the rotation of the lid arm 2b in the arrow B1 direction, the direction in which the toggle spring 4 biases the lid arm 2b is changed from the arrow B2 direction to the arrow B1 direction. Invert to. By the biasing force of the toggle spring 4 in the direction of arrow B1, the lid body 2 moves to the lid closing position 2A.

In the above-described disk mounting operation, the slide cam member 18 is configured so that the cam lower surface 31b-2 of the cam portion 31b of the kick arm 31 completely pushes down the engaging portion 2f and the lid body 2 moves to the closed position 2A. The movement in the direction of arrow A1 is continued. Thereafter, as shown in FIG. 22C, when the slide cam member 18 moves to a position farthest from the lid body 2, the disc mounting operation is completed, and the movement of the slide cam member 18 stops. In the state shown in FIG. 22C, since the engaging portion 2f and the cam lower surface 31b-2 of the cam portion are not engaged, the upward movement of the engaging portion 2f is restricted by the urging force of the toggle spring 4. The Accordingly, the lid 2 is held at the closed position 2A.

Next, the operation of the components related to the lid 2 when the disc 200 mounted on the turntable 13 is ejected will be described with reference to FIGS. 23A to 22C. When the disc 200 is mounted on the turntable 13, the slide cam member 18 is located at the position farthest from the lid 2 as shown in FIG. 22C.

FIG. 23A shows a state in which the user presses the lid 2 from the closing position 2A to the opening position 2B in order to eject the disc 200 mounted on the turntable 13. When the lid body 2 is pressed from the closing position 2A to the opening position 2B, the lid arm 2b comes into contact with the operation lever 32a, and the lid opening / closing detection switch 32 is turned on. The lid open / close detection switch 32 has a function as an eject switch for ejecting the disc 200. That is, when the lid opening / closing switch 32 is turned on, the motor 9 of the disk drive unit 100 is driven, and the disk 200 is ejected. The reason for this setting is as follows.

That is, the user moves the lid 2 from the closed position 2A to the open position 2B when either the user wants to remove the disc 200 or insert a new disc 200. In either case, when the disc 200 is mounted on the turntable 13 and the slide cam member 18 is moved to the position farthest from the lid 2, the disc 200 in the disc drive unit 100 is ejected (ejected). There is a need to. For this reason, it is considered preferable that the disc 200 is automatically ejected when the user moves the lid 2 from the closed position 2A to the opened position 2B. Therefore, the lid opening / closing detection switch 32 is turned on in conjunction with the movement of the lid body 2 to the lid opening position 2B, and the disc 200 ejection operation is automatically started.

When the disc 200 is ejected, the slide cam member 18 slides in the direction of the arrow A2 as described above. As a result, the kick arm 31 provided on the slide cam member 18 also moves in the arrow A2 direction. As the kick arm 31 moves, the cam upper surface 31b-1 of the cam portion 31b engages with the engaging portion 2f of the lid arm 2b.

FIG. 23B shows a state immediately after the cam upper surface 31b-1 of the cam portion 31b of the kick arm 31 is engaged with the engaging portion 2f of the lid arm 2b. In the state shown in FIG. 23B, the engaging portion 2f of the lid arm 2b is urged by the urging force of the toggle spring 4 and is held at a position where it cannot be pushed up further. On the other hand, the kick arm 31 is urged in the direction of the arrow C1 about the rotation shaft 31a by the urging force of the spring piece 31c, but adds a turning force that is greater than the urging force of the spring piece 31c. Thus, it can be rotated in the direction of arrow C2. Accordingly, when the disc 200 is ejected, when the slide cam member 18 moves in the direction of the arrow A2 and the cam upper surface 31b-1 of the cam portion 31b of the kick arm 31 engages with the engaging portion 2f, the kick arm 31 rotates in the direction of arrow C2. At this time, the slide cam member 18 moves in the direction of the arrow A2 without the lid arm 2b rotating or the like.

When the lowering operation of the turntable 13 is completed and the main body that performs the disk ejection operation is switched from the disk mounting mechanism to the disk transport mechanism, the slide cam member 18 stops moving. FIG. 23C shows a discharge operation completion state in which the slide cam member 18 stops moving and the disk 200 is discharged to the disk insertion slot 101a. In this ejection operation complete state, the disc 200 is in the state shown in FIG. That is, the disk 200 is sandwiched between the rubber rollers 6 a to 6 d and is supported by the elastic sheet 3 a constituting the dustproof cover 3. The user can easily remove the disc 200 by inserting a finger into a hole provided in the center of the disc 200. At this time, the lid body 2 is held at the lid opening position 2B by the urging force of the toggle spring 4 in the direction of the arrow B2. The lid 2 can be moved to the closing position 2A by pushing up the lower part of the lid 2.

Next, a description will be given focusing on the function of the kick arm 31.

As described above with reference to FIGS. 22A to 22C, when the disk 200 is inserted into the disk drive unit 100 and mounted on the turntable 13, the slide cam member 18 moves in the arrow A1 direction. During the movement of the slide cam member 18, the cam lower surface 31b-2 of the cam portion 31b of the kick arm 31 engages with the engaging portion 2f of the lid arm 2b, and the lid arm 2b rotates. By the rotation of the lid arm 2b, the lid 2 moves to the lid closing position 2A. On the other hand, as described above with reference to FIGS. 23A to 23C, when the disc 200 mounted on the turntable 13 is ejected, the slide cam member 18 moves in the direction of the arrow A2. During the movement of the slide cam member 18, the cam upper surface 31b-1 of the cam portion 31b of the kick arm 31 engages with the engagement portion 2f of the lid arm 2b, and the kick arm 31 rotates in the direction of arrow C2. On the other hand, the lid arm 2b does not rotate at all. Therefore, the lid 2 is held at the open position 2B.

That is, even if the kick arm 31 functions to move the lid 2 to the closed position 2A even when the lid 2 is located at the same open position 2B, It may function so as not to move to 2A. In other words, the kick arm 31 moves the lid 2 to the closed position 2A only when the slide cam member 18 moves in the direction of the arrow A1, and when the slide cam member 18 moves to the arrow A2, the lid is in the open position. 2B has a function as a so-called 1-way clutch that holds the position state.

Next, the control-related configuration of the disk device according to the embodiment of the present invention will be described with reference to FIG. FIG. 24 is a block diagram showing a control-related configuration of the disk device according to the present embodiment.

24, the disk device according to the present embodiment includes a control unit 33, a detection switch group 34, a carry-in / carry-out motor control circuit 35, and a disk reproducing mechanism 36.

The control unit 33 controls the carry-in / carry-out motor control circuit 35 and the disc reproducing mechanism 36 based on the detection information of the detection switch group 34. The detection switch group 34 includes detection switches SW1 to SW4. The detection switch SW1 corresponds to the lid open / close detection switch 32. The detection switch SW2 corresponds to the detection switch 27a that detects the disc 200 inserted through the disc insertion slot 101a. The detection switch SW3 corresponds to the detection switch 27b that detects the end of the disk transport operation when the disk 200 is ejected. The detection switch SW4 corresponds to the detection switch 27c that detects whether or not the disc 200 has been transported to the reproducible position and mounted on the turntable 13. The carry-in / carry-out motor control circuit 35 is a control circuit that controls the drive of the motor 9. The disc playback mechanism 36 includes devices necessary for playback of the disc 200, such as a spindle motor, a traverse drive unit, an optical detection control unit, and a signal processing unit. Here, details of the disc playback mechanism 36 are omitted.

Next, the control flow of the disk device according to the present embodiment will be described with reference to FIG. FIG. 25 is a flowchart showing a control flow of the disk device according to the present embodiment. The following control flow is performed under the control of the control unit 33.

First, in step S1, it is determined whether or not the lid body 2 is positioned at the lid closing position 2A. Specifically, it is determined whether or not the detection switch SW1 (lid open / close detection switch 32) is turned on. When the lid 2 is transferred to the open position 2B and the detection switch SW1 is turned on, the process proceeds to step S2.

In step S2, it is determined whether or not the disc 200 is mounted on the turntable 13. Specifically, it is determined whether or not the detection switch SW3 (detection switch 27b) is turned on after the detection switch SW4 (detection switch 27c) is turned on. When the disc 200 is not mounted on the turntable 13 (the state shown in FIG. 21C), the process proceeds to step S3. On the other hand, when the disc 200 is mounted on the turntable 13 (the state shown in FIG. 23A), the process proceeds to step S9. Note that it is considered that the user moves the lid 2 to the open position 2B when the disc 200 is mounted on the turntable 13 when the user wants to eject the disc 200 from the disc drive unit 100.

In step S3, it is determined whether or not the disc 200 has been inserted into the disc insertion port 101a. Specifically, it is determined whether or not the detection switch SW2 (detection switch 27a) is turned on. If the disc 200 is not inserted into the disc insertion slot 101a, the process proceeds to step S4. On the other hand, when the disc 200 is inserted into the disc insertion slot 101a, the process proceeds to step S5.

In step S4, it is determined whether or not the state in which the lid 2 is located at the open position 2B is continued. Specifically, it is determined whether or not the detection switch SW1 is off. If the state of the lid body 2 located at the open position 2B is continued, the process returns to step S3. On the other hand, when the lid 2 is moved to the closing position 2A without inserting the disk 200 (the state shown in FIG. 21A), this control flow is ended.

On the other hand, in step S5, the disc transport mechanism is controlled so as to transport the disc 200 inserted from the disc insertion slot 101a to the reproducible position (disc carry-in command). Then, it progresses to step S6.

In step S6, the motor 9 is driven to rotate forward, and a disk carry-in operation and a disk mounting operation are performed. Then, it progresses to step S7. Note that, in the course of the disc loading operation, the lid body 2 moves to the lid closing position 2A as shown in FIGS. 22A to 22C. When the disc 200 is mounted on the turntable 13 and the lid body 2 reaches the lid closing position 2A, the detection switch SW4 (detection switch 27c) is turned on (state shown in FIG. 22C).

In step S7, it is determined whether or not the disc 200 is mounted on the turntable 13. Specifically, it is determined whether or not the detection switch SW4 (detection switch 27c) is turned on. When the disc 200 is not mounted on the turntable, the process returns to step S6. On the other hand, when the disc 200 is mounted on the turntable 13, the process proceeds to step S8.

In step S8, the drive of the motor 9 is stopped (disk mounting completed), and this control flow is terminated.

In step S9, when the lid 2 is positioned at the open position 2B and the disc 200 is mounted on the turntable 13, it is determined whether or not the disc 200 is being reproduced by the disc reproduction mechanism 36. to decide. When the disc 200 is being reproduced, the process proceeds to step S10. When the disc 200 is not being reproduced, the process proceeds to step S11.

In step S10, the disc playback mechanism 36 is controlled to stop playback of the disc 200 (disc playback stop command). Thereafter, the process proceeds to step S12.

In step S11, the disc transport mechanism is controlled so that the disc 200 is ejected from the disc insertion slot 101a (disc ejection command). Thereafter, the process proceeds to step S12.

In step S12, the motor 9 is driven in reverse. Thereby, the disc ejection operation is started. Thereafter, the process proceeds to step S13.

In step S13, it is determined whether or not the disc ejection operation has been completed (the state shown in FIG. 23C). Specifically, it is determined whether or not the detection switch SW3 (detection switch 27b) is turned on. If it is determined that the disc ejection operation is completed, the process proceeds to step S14.

In step S14, the driving of the motor 9 is stopped (disk ejection is completed), and this control flow is terminated. At this time, the disk 200 is held by the rubber rollers 6a to 6d and the elastic sheet 3a constituting the dust cover 3.

As described above, when the lid 2 is moved to the open / close position 2B, the subsequent control flow differs depending on whether or not the disc 200 is mounted on the turntable 13. When the disc 200 is not mounted on the turntable 13, when the disc 200 is inserted from the disc insertion port 101a, the lid 2 automatically moves from the open position 2B to the closed position 2A in conjunction with the disc loading operation. Moved. On the other hand, when the disc 200 is mounted on the turntable 13, the disc ejection operation is automatically performed in conjunction with the movement of the lid body 2 from the closing position 2A to the opening position 2B. It has become.

As described above, according to the disk device of the present embodiment, since the lid 2 that closes the disk insertion port 101a from the outside is provided, it is possible to prevent foreign matter from entering the outer case 1. Further, when the disc 200 is inserted into the disc insertion slot 101a, the lid 2 is automatically moved to the lid closing position 2A using the moving force of the slide cam member 18, so that the disc 200 is turned. It is possible to prevent the lid body 2 from being left in the open position when being mounted on the table 13. As a result, it is possible to further prevent foreign matter from entering the outer case 1 and to prevent erroneous insertion of the disk 200. Further, since the lid body 2 is moved to the lid closing position 2A using the moving force of the slide cam member 18, it is not necessary to provide a separate drive source for opening and closing the lid body 2.

Further, the disk device of the present embodiment holds the lid body 2 moved to the closing position 2A at the closing position 2A and holds the lid body 2 moved to the opening position 2B at the opening position 2B. A holding mechanism for holding and a lid opening / closing switching mechanism for switching a holding state by the holding mechanism in association with the opening / closing operation of the lid body 2 are provided. Here, in the present embodiment, the holding mechanism is configured by a toggle spring 4 provided so as to be engaged with the casing 101 and the lid arm 2b, and the lid 2 has a closing position 2A and an opening position 2B. Both states are held by the biasing force of the toggle spring 4. In the present embodiment, the lid opening / closing switching mechanism includes a lid arm 2b and a kick arm 31b. However, the holding mechanism and the lid opening / closing switching mechanism of the present invention are not limited to these configurations. Further, in the disk device according to the present embodiment, when the disk mounting mechanism performs a disk mounting operation in a state where the lid body 2 is positioned at the open position 2B, the lid opening / closing switching mechanism interlocks with the operation to The holding mechanism is configured to switch from a state in which the lid 2 is held at the open position 2B to a state in which the lid 2 is held at the closed position 2A. As a result, the disk 2 is mounted on the turntable 13 and the lid 2 is closed by a simple operation of moving the lid 2 to the open position 2B and inserting the disc 200 into the disc insertion slot 101a. The movement to 2A can be performed as a series of operations.

Further, according to the disk device of the present embodiment, when the lid 2 is moved to the open position 2B by manual operation with the disk 200 mounted on the turntable 13, the disk ejection operation is automatically performed. It is supposed to be. As a result, when the disc 2 is mounted on the turntable 13 and the lid 2 is moved to the open position 2B in order to insert another disc into the disc insertion slot 101a, the disc is mounted on the turntable 13. The disc is ejected from the disc insertion slot 101a. Therefore, the erroneous insertion of the disk can be further prevented.

In addition, this invention is not limited to the said embodiment, It can implement in another various aspect. For example, in the above description, when the disc 200 is clamped between the turntable 13 and the clamper 21 to be in a reproducible clamp state, the traverse 15 having the turntable 13 is rotated toward the clamper 21. The invention is not limited to this. The disc table 200 may be configured to be in a reproducible clamp state by relatively moving the turntable 13 and the clamper 21. For example, the clamper 21 may be configured to move toward the turntable 13.

Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as being included therein, so long as they do not depart from the scope of the present invention according to the appended claims.

Japan patent application No. filed on Feb. 4, 2011. The disclosure of the specification, drawings, and claims of 2011-022369 is incorporated herein by reference in its entirety.

The disc apparatus according to the present invention can prevent foreign matter from entering and prevent erroneous insertion of the disc. In particular, a disc-shaped recording medium such as a CD, DVD, or BD can be used without using a tray. This is useful for a slot-in type disk device configured to be conveyed to a reproducible position.

Claims (7)

1. A disk transport mechanism for performing a disk transport operation for transporting a disk inserted from a disk insertion slot to a reproducible position;
   A disk mounting mechanism for performing a disk mounting operation for mounting the disk transported to the reproducible position on the turntable in order to put the disk in a reproducible clamp state;
   A lid provided so as to be movable by manual operation at a closed position for closing the disk insertion opening from the outside and an opening position for exposing the disk insertion opening to the outside;
   Holding the lid moved to the closed position at the closed position, and holding the lid moved to the opened position at the opened position;
   A lid opening / closing switching mechanism for switching the holding state by the holding mechanism in conjunction with the opening / closing operation of the lid;
   A slot-in type disk device comprising:
   The disk mounting mechanism includes an operating member that moves in conjunction with the disk mounting operation,
   The lid opening / closing switching mechanism holds the lid in the open position by the holding mechanism using the moving force of the operating member when the disc is inserted when the disc is inserted into the disc insertion slot. A disc device configured to release the closed state and automatically move the lid from the open position to the closed position.
2. When the disc is mounted on the turntable and the lid is moved from the closed position to the open position by manual operation, the disc mounting mechanism releases the clamped state of the disc and The disk apparatus according to claim 1, wherein a disk discharge operation is performed automatically so that a disk transport mechanism carries the disk released from the clamped state to the disk insertion port.
3. A drive source for generating a drive force for driving the disk transport mechanism and the disk mounting mechanism;
   A control unit for controlling the drive source;
   A disk mounting detection unit for detecting whether or not the disk is mounted on the turntable;
   A lid open / close detection unit for detecting an open / closed state of the lid;
   Further comprising
   The control unit detects that the lid opening / closing detection unit detects that the lid body has moved from the closed position to the open position, and that the disc is mounted on the turntable. The disk device according to claim 2, wherein when the detection unit detects, the drive source is controlled such that the disk ejection operation is performed.
4. In the lid opening / closing switching mechanism, when the operating member moves during the disc ejection operation, the moving force of the operating member is not transmitted to the holding mechanism, and the lid is held at the open position. The disk device according to claim 2, wherein the disk device is configured to maintain the above.
5. The lid opening / closing switching mechanism is
   A lid body configured to move the lid body between the closed position and the open position by rotating about a rotation axis disposed inside the outer case of the disk device. With an arm,
   The lid arm is rotated by utilizing the moving force of the actuating member during the disk mounting operation, thereby releasing the state where the lid is held at the open position by the holding mechanism, The disk device according to claim 1, wherein the lid body is configured to move from the open position to the closed position.
6. The lid opening / closing switching mechanism is
   A kick arm rotatably provided on the operating member;
   A lid body configured to move the lid body between the closed position and the open position by rotating about a rotation axis disposed inside the outer case of the disk device. An arm, and
   The kick arm has a cam portion at a position away from the rotation axis of the kick arm,
   The cam portion is biased so as to contact the operating member,
   The lid arm has an engaging portion engageable with the cam portion,
   When the kick arm moves together with the actuating member during the disk mounting operation, the lid arm engagement portion engages with the kick arm cam portion, and the lid arm rotates, and the lid When the body arm rotates, the state in which the lid body is held at the open position by the holding mechanism is released and the lid body moves to the closed position. When the kick arm moves, the engaging portion of the lid arm engages with the cam portion of the kick arm, and the kick arm resists the urging force without rotating the lid arm. The structure according to any one of claims 2 to 4, wherein the lid body is configured to rotate in a direction away from the lid arm and maintain the lid body held in the open position by the holding mechanism. Disk unit.
7. The holding mechanism includes a spring member that urges the lid arm in a rotation direction,
   The spring member is configured such that the direction in which the lid arm is urged is reversed while the lid arm is rotating so as to move the lid from the open position to the closed position. The disk device according to claim 5 or 6.

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