JP3792895B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk device that performs reproduction of an optical disk such as a CD, a CD-ROM, and a DVD.
[0002]
[Prior art]
As a loading method of a disc adopted in a CD player for mounting on a vehicle or some CD-ROM drives, when a disc is loaded, the disc is inserted by inserting a specified amount into the insertion slot provided on the front panel. The disc is automatically taken into the apparatus and transported to the playback position.On the other hand, when the disc is unloaded, the drive mechanism system is driven in the opposite direction to the loading direction by pressing an eject button provided on the front panel or the like. There is a so-called slot loading method in which a part of the disc is conveyed to a position exposed from the insertion slot.
[0003]
Such a slot loading method conveys a disk while sandwiching the disk from both sides, and 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 sandwiching the disk and rotating this roller with a rotation drive mechanism. In addition to the rotational drive mechanism, this roller is provided with a disk clamping mechanism that moves the roller in the thickness direction of the disk between a clamping conveyance position where the disk can be clamped and conveyed and a non-nipping conveyance position. When the disc transported to the playback position is played back, the disc clamping mechanism moves the roller to the non-pinch transport position so that the disc can be rotated by the playback mechanism. At the time of loading in which the disk is conveyed between the rollers, the rollers are moved to the nipping and conveying position so that the disk can be nipped and conveyed between the guide member and the roller.
[0004]
[Problems to be solved by the invention]
However, in such a slot loading system, the drive mechanism system is, of course, electrically controlled through a microcomputer and a drive circuit, etc., so that the microcomputer or the drive circuit or the like fails when a disk is loaded inside the apparatus. If this happens, the disk cannot be removed from the inside of the apparatus. Therefore, there has been a demand for the development of a slot loading mechanism that can cope with such a situation.
[0005]
The present invention has been made to solve such a problem, and even when a failure occurs in an electric control system or the like that controls a loading mechanism in a state where a disk or the like is stored inside the device, It is an object of the present invention to provide a disk device that can easily remove a disk or the like from a disk.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the disk device of the present invention is as described in claim 1. An opening through which the disc is inserted and removed; and A housing with a playback unit that drives and plays a disc; A driving roller that is rotated by transmitting a driving force; and a guide member that presses the disk against the driving roller. The opening of the housing and the reproduction are held while the disk is held between the driving roller and the guide member. The disk is transported to and from the unit by the rotational force of the drive roller A disk transport mechanism; and Driving roller Or a disc clamping mechanism for moving either of the guide members in a disc thickness direction between a clamping conveyance position where the disc can be clamped and conveyed and a non-nipping conveyance position; Driving roller Or when any one of the guide members is in the clamping conveyance position Driving roller Alternatively, the clamping release member that operates the disc clamping mechanism to move either of the guide members toward the non-clamping conveyance position, and the clamping release member from the outside in a state where the disc is stored in the housing And an urging means for urging the disk toward the opening so that at least a part of the disk protrudes from the opening when the disk is operated with a force of.
[0007]
According to a second aspect of the present invention, there is provided the disk device according to the first aspect, wherein the open / close member moving mechanism moves the open / close member for opening and closing the opening and the nipping release. An opening / closing member interlocking mechanism for interlocking the clamping release member and the opening / closing member moving mechanism so that the opening / closing member opens the opening when the member is operated by an external force.
[0009]
Further, the disk device of the present invention includes: Claim 3 As described in An opening through which the disc is inserted and removed; and A housing with a playback unit that drives and plays a disc; A driving roller that is rotated by transmitting a driving force; and a guide member that presses the disk against the driving roller. The opening of the housing and the reproduction are held while the disk is held between the driving roller and the guide member. The disk is transported to and from the unit by the rotational force of the drive roller A disk transport mechanism, a disk gripping mechanism for moving the guide member in a thickness direction of the disk between a sandwich transport position where the disk can be sandwiched and transported, and a non-nip transport position; and the guide member serving as the sandwich transport position A clamping release member for operating the disc clamping mechanism with an external force so that the guide member moves in the direction of the non-clamping conveyance position when the disc is stored in the housing. And a biasing means for biasing the disk toward the opening so that at least a part of the disk protrudes from the opening when the clamping release member is operated by an external force. And
[0010]
Furthermore, the disk device of the present invention includes: Claim 4 As described in An opening through which the disc is inserted and removed; and A housing with a playback unit that drives and plays a disc; A driving roller that is rotated by transmitting a driving force; and a guide member that presses the disk against the driving roller. The opening of the housing and the reproduction are held while the disk is held between the driving roller and the guide member. The disk is transported to and from the unit by the rotational force of the drive roller A disk transport mechanism; and Driving roller Alternatively, a disc clamping mechanism that moves the guide member in a thickness direction of the disc between a clamping conveyance position where the disc can be clamped and conveyed and a non-clamping conveyance position, and the disc on the disc mounting surface on the reproduction unit A disk clamping mechanism having a mounting position for mounting and a detaching position for detaching the disk from the mounting surface; and when the disk clamping mechanism is not in the detaching position, the disk clamping mechanism moves to the detaching position and Driving roller Alternatively, external operation means for operating the disk clamping mechanism and the disk clamp mechanism with an external force so as to prevent the guide member from moving to the clamping conveyance position, and the external operation means with an external force. An external operation hole provided in the housing for operation, and when the external operation means is operated by an external force through the external operation hole in a state where the disk is housed in the housing, And an urging means for urging the disk toward the opening so that at least a part of the disk protrudes from the opening.
[0011]
Furthermore, the disk device of the present invention includes: Claim 5 As described in Claim 4 In this disk apparatus, the external operation means holds the disk through an insert inserted from the external operation hole so that the guide member moves toward the non-nipping conveyance position when the guide member is in the clamping conveyance position. A clamping release member for operating the mechanism with external force, and an insert inserted from the external operation hole so that the reproduction unit moves to the non-reproduction execution position when the reproduction unit is not in the non-reproduction execution position. And a regeneration releasing member for operating the unit moving mechanism with an external force.
[0012]
Furthermore, the disk device of the present invention includes: Claim 6 As described in Claim 5 In the disc apparatus, the insertion guide for the insert is provided so that the insert inserted from the external operation hole is directed to the clamping release member and the regeneration release member.
[0013]
According to the disk device of the present invention, the disk Press against the drive roller For example, when the guide member is in the nipping and conveying position, or when the reproduction unit for reproducing the disk is not in the non-reproduction execution position, the insertion member is inserted and guided through the external operation hole provided in the housing. The guide member can be moved in the non-nipping conveyance position direction and the reproduction unit can be moved to the non-reproduction execution position by operating external operation means such as the nipping release member and the regeneration release member with external force. In addition, the K When this external operation means is operated in the stored state, K The opening / closing member that opens and closes the opening / closing of the housing to be taken in / out can be operated to open the opening and Of At least a portion can protrude from the opening. As a result, the disc K Even when a failure occurs in the electric control system that controls the loading mechanism in the stored state, the disk is disconnected from the inside of the device. The It can be easily taken out.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
[0015]
FIG. 1 is a diagram schematically showing a disk device according to an embodiment of the present invention.
[0016]
As shown in the figure, in this disk apparatus, reference numeral 1 denotes a cabinet 1 as a housing having a disk drive mechanism, a disk transport mechanism, and the like inside. The front panel 2 on the front surface of the cabinet 1 has an insertion slot 3 through which a disk is inserted into and removed from the cabinet 1, an eject switch 4 for ejecting the disk carried into the cabinet 1 by a disk transport mechanism, and when power is cut off. Even so, a manual operation hole 4a or the like is provided through which a disk can be manually removed from the cabinet 1 by inserting a pin or the like.
[0017]
As shown in FIGS. 2 to 4, in the cabinet 1, a disk unit that drives and reproduces a disk and conveys the disk while sandwiching the disk from both sides between the insertion slot 3 and the reproduction unit 5. A reproduction unit between a reproduction execution position for executing reproduction of a disk and a non-reproduction execution position; a mechanism 6; a disk detection mechanism 7 for detecting a position of the disk carried into or out of the cabinet 1 by the disk conveyance mechanism 6; A unit lifting mechanism 8 that moves up and down 5 and an interlocking mechanism 9 that links the disk transport mechanism 6 and the unit lifting mechanism 8 are provided.
[0018]
The reproduction unit 5 includes a mechanical chassis 10 equipped with a disk drive / reproduction mechanism supported by a mechanical holder 12 via a plurality of damper rubbers 11. The mechanical chassis 10 drives a disk mounted on a turntable 13. A disk motor 14 for performing the above operation, a pickup 15 for reading a signal recorded on the disk, a pickup feeding mechanism for moving the pickup 15 in the radial direction of the disk via a thread motor 16, and the like are mounted. Rotating shafts 17 are coaxially provided on both side surfaces of the reproducing unit 5 with respect to the insertion port 3, and each rotating shaft 17 is freely rotatable on a shaft holding portion 18 provided in the cabinet 1. Is retained. Further, a rotation guide shaft 19 projects from the side surface of the reproduction unit 5 on the insertion port 3 side.
[0019]
As the unit raising / lowering mechanism 8, the rotation guide shaft 19 of the reproduction unit 5 is inserted and held in the raising / lowering guide groove 21 on the side surface of the cylindrical cam 20 incorporated in the cabinet 1. It is guided along the guide groove 21 in the vertical direction, that is, in the thickness direction of the disk. Accordingly, the reproduction unit 5 is configured to tilt with 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 part of the turntable 13 and the metal part of the clamper 23 of the clamper holder 22 incorporated in the cabinet 1 are attracted. Therefore, the disc mounted on the turntable 13 is sandwiched between the turntable 13 and the clamper 23.
[0020]
The disk transport mechanism 6 includes a transport roller 26 driven via a plurality of roller drive gear groups 25 that transmit the driving force of the loading motor 24, and the transport roller 26 to sandwich the disk at the tip portion. A disk guide 27 is provided. The disc guide 27 has openings on the insertion port 3 side and the reproduction unit 5 side, and the disc can pass through the inside of the disc guide 27. The disc guide 27 is provided with pivot shafts 28 on both side surfaces on the insertion port 3 side, and the disc guide 27 has the pivot shaft 28 as a fulcrum, and the tip portion inside the upper portion can sandwich and convey the disc. It is rotated so that the gap between the nipping and conveying position and the conveying roller 26 moves between the non-nipping and conveying position where the gap is sufficiently larger than the thickness of the disk. That is, in this disc clamping mechanism for rotating the disc guide 27, the guide raising / lowering pin 29 provided at the bottom of the disc guide 27 is supported by the inclined portion 30 of the cylindrical cam 20. It is rotated to move the tip portion of the disk guide 27 between the nipping and conveying position and the non-nipping and conveying position. Further, when the front end portion of the disk guide 27 is in the non-clamping conveyance position separated from the disk, the playback unit 5 is positioned at the playback execution position via the cylindrical cam 20, so that the disk is connected to the turntable 13 and the clamper. Thus, it is possible to perform reproduction by driving the disc. The aforementioned cylindrical cam 20 is rotationally driven via a plurality of roller drive gear groups 25 and cam drive gear groups 31 that transmit the driving force of the loading motor 24. Further, a guide spring 32 having one end hung on the bottom of the cabinet 1 is attached in the vicinity of each rotation shaft 28 of the disk guide 27, and the guide spring 32 uses the rotation shaft 28 as a fulcrum to support the disk guide 27. The tip portion applies a predetermined pressing force to the driving roller 26. That is, the disk is conveyed according to the rotation direction of the driving roller 26 by the rotational driving force of the driving roller 26 and the clamping force of the disk guide 27 via the guide spring 32.
[0021]
A cam portion 33 is provided at the end of the disc guide 27 on the insertion port 3 side, and the cam portion 33 operates as an opening / closing door 34 that opens and closes the insertion port 3 according to the rotation of the disc guide 27. Is controlling. That is, when the disc is carried in or out through the insertion port 3, the disc guide 27 is in the nipping and conveying position, and at this time, the opening / closing door 34 is positioned at a position where the insertion port 3 is opened by the restraining force of the cam portion 33. . On the other hand, in a state where the disc is carried into the cabinet 1, the disc guide 27 is in the non-nipping conveyance position, and the opening / closing door 34 is rotated and moved so as to close the insertion port 3 by the cam portion 33. An opening / closing door holding member 35 having a door rotation prevention projection 35b is provided to hold the opening / closing door 34 so that the insertion port 3 does not open due to rotation. The opening / closing door holding member 35 is provided with a gear portion 35a, and the opening / closing door holding member 35 is rotated when the gear portion 35a meshes with the gear portion 62 of the cylindrical cam 20. The open / close door 34 is provided with an open / close door spring 36, and the open / close door spring 36 biases the open / close door 34 in the direction of closing the insertion port 3, that is, the side in contact with the cam portion 33.
[0022]
As shown in FIGS. 2 to 4, the interlocking mechanism 9 that interlocks the disk transport mechanism 6 and the unit elevating mechanism 8 includes a disk mounting plate 45 on which a disk 39 is temporarily mounted during loading, and a disk mounting plate 45. The disc position regulating lever 46 that regulates the lateral position of the disc 39 during loading, the disc loading lever 47 for starting the driving of each member of the interlocking mechanism 9 when loading the disc 39, and the cabinet 1 A disk loading support lever 50 that is urged counterclockwise by a support lever spring 49 with a support shaft 48 provided as a fulcrum and supports the vicinity of the rotation center of the disk loading lever 47, and the disk loading lever 47 are driven. The cam interlocking plate 51 that transmits to the cylindrical cam 20 side and the drive of the cam interlocking plate 51 A cam drive lever 52 which transmits to the cylindrical cam 20 is provided.
[0023]
The disk carry-in support lever 50 rotates within a range until it comes into contact with two stoppers provided in the cabinet 1, and when it rotates counterclockwise and comes into contact with one of the stoppers, The position of the lever 50 is used as a reference, and the cam interlocking plate 51 is advanced when the disk carry-in lever 47 rotates clockwise. When the lever 50 rotates clockwise and contacts the other stopper, the disc loading plate 47 and the cam interlocking plate 51 serve as a reference for positioning the disc mounting plate 45 in the forward direction.
[0024]
The disk mounting plate 45 is provided with a mounting plate spring 53 that urges the disk mounting plate 45 toward the insertion port 3. When the disk 39 is not accommodated in the cabinet 1, the disk mounting plate 45 is loaded into the disk. The position is fixed to a predetermined advance position on the insertion port 3 side positioned through the support lever 50. On the other hand, as shown in FIGS. 5 to 8, when the disk 39 is loaded and the disk mounting plate 45 is retracted from the insertion port 3 side, and the playback unit 5 is raised to the playback execution position. The protrusion 54 formed on the bottom surface of the disk mounting plate 45 engages with the stopper 55 formed on the mechanical holder 12 of the reproducing unit 5 so that the disk mounting plate 45 is localized at this position retracted from the insertion port 3 side.
[0025]
Further, the disk position regulating lever 46 incorporated in the disk mounting plate 45 is moved along a moving groove 56 formed in the clamper holder 22 as the disk mounting plate 45 moves. Therefore, the disc position regulating lever 46 is positioned toward the insertion port 3 before the disc 39 is carried in. On the other hand, when the disc 39 is carried in, the disc position restricting lever 46 is retracted from the insertion port 3 side. It is spaced from the end face of 39.
[0026]
Further, the disk position restricting lever 46 is urged by the position restricting spring 57 to the loaded disk 39 side, so that the end surface of the disk 39 can be supported when the disk 39 is loaded or unloaded. it can. When the disk 39 is transported to the disk mounting plate 45 by the disk transport mechanism 6, the disk 39 and the disk contact portion 58 of the disk transport lever 47 come into contact with each other, and the support shaft 50a of the disk transport support lever 50 is moved. Slightly rotates counterclockwise as the center of rotation.
[0027]
The cam drive lever 52 has a plate engaging portion 59 that engages with the cam interlocking plate 51 at one end, and a cam engaging portion that engages with the lever holding groove 60 of the cylindrical cam 20 at the other end. 1 is rotated about a support shaft 52a provided at 1 as a fulcrum. Further, a lever spring 61 is incorporated in the cam drive lever 52, and the cam drive lever 52 is urged counterclockwise about the support shaft 52a. Thereby, the cylindrical cam 20 is urged to rotate clockwise through the lever holding groove 60, and therefore, the jumping gear portion 62 and the cam drive gear group 31 partially formed in the cylindrical cam 20 are included. It is not normally meshed with the drive gear 63.
[0028]
However, when the disc 39 is transported to the disc mounting plate 45 by the disc transport mechanism 6, the disc abutment portion 58 is brought into contact with the disc 39 and the disc abutment portion 58 of the disc carry-in lever 47. While the disk mounting plate 45 is retracted, the disk carry-in support lever 50 abuts against one stopper of the cabinet 1 by rotating clockwise with the support shaft 48 as a fulcrum. As a result, the disc carry-in lever 47 rotates clockwise about the support shaft 50a, the cam interlocking plate 51 advances, and the cam drive lever 52 rotates clockwise while resisting the biasing force of the lever spring 61. As a result, the cylindrical cam 20 slightly rotates counterclockwise, so that the gear portion 62 of the cylindrical cam 20 and the drive gear 63 in the cam drive gear group 31 mesh with each other. The disk transport mechanism 6 and the unit lifting mechanism 8 can be driven by the driving force via the roller driving gear group 25, the cam driving gear group 31, and the cylindrical cam 20.
[0029]
Next, the disk detection mechanism 7 will be described. In this embodiment, a case where a standard disk (12 cm disk) is detected will be described as an example.
[0030]
As shown in FIGS. 4 and 8 to 10, the disk detection mechanism 7 includes a circuit board 64 built in the bottom of the cabinet 1, and an insertion detection switch 65 and a discharge detection switch 66 mounted on the circuit board 64, respectively. A disc insertion detection lever 40 that moves in contact with the end face of the disc 39 inserted through the insertion slot 3 and detects the insertion of the disc 39 by pressing the switching portion 68 of the insertion detection switch 65 by the switch pressing portion 67; Then, the disk 39 is moved to contact with the end face of the disk 39 ejected toward the insertion port 3 and the switch 39 of the ejection detection switch 66 as a push switch is pressed by the switch pressing section 69, whereby the disk 39 is brought into the ejection position. When the disc discharge detection lever 71 that detects the arrival of the disc 39 and when the disc 39 is loaded into the cabinet 1 In this case, when the switching unit 73 is pressed by the switch pressing unit 72 of the cam drive lever 52 that rotates clockwise with the support shaft 52a as a fulcrum, the playback unit 5 rises and the movement to the playback execution position is completed. And a clamp completion detection switch 74 for detecting this. The disc insertion detection lever 40 and the disc ejection detection lever 71 are respectively energized by detection lever springs 75 and 76 that are incorporated so that a part of each lever is positioned at a predetermined initial position where the lever abuts against the stopper of the cabinet 1. Has been.
[0031]
The circuit board 64 is equipped with a microcomputer and a drive circuit (not shown), and loading through the drive circuit based on the signal input status (SW: ON / OFF) of each detection switch and the eject switch 4 described above. The drive of the motor 24 is controlled by a microcomputer. That is, when the disk 39 is carried into the cabinet 1, as shown in FIG. 9, before the leading end in the inserting direction of the disk 39 reaches between the driving roller 26 and the sandwiched portion of the leading end of the disk guide 27, That is, the insertion detection switch 65 is attached so that the loading motor 24 is driven before the inserted disk 39 is sandwiched between these members, and as shown in FIG. 8, the reproduction unit 5 is raised to the reproduction execution position. A clamp completion detection switch 74 is attached based on the position of the switch pressing portion 72 of the cam drive lever 52 so that the driving of the loading motor 24 is stopped when the movement is completed. On the other hand, when the disk 39 is ejected from the cabinet 1, as shown in FIG. 10, a part of the disk 39 is sandwiched between the drive roller 26 and the disk guide 27, and at least a part of the disk 39 is inserted into the insertion slot 3. A discharge detection switch 71 is attached so that the driving of the loading motor 24 stops at a more exposed position.
[0032]
Therefore, when the disc 39 is loaded, the microcomputer starts to rotate the loading motor 24 counterclockwise at the timing when the insertion detection switch 65 is turned on by the microcomputer, and loading at the timing when the clamp completion detection switch 74 is turned on. The rotational drive of the motor 24 stops. On the other hand, when the disk 39 is unloaded, the loading motor 24 starts to rotate in the clockwise direction at the timing when the above-described eject switch 4 is turned on by the microcomputer. Further, as shown in FIG. The rotational drive of the loading motor 24 is stopped at a timing when 66 is once turned on and then turned off, that is, after the maximum diameter of the disk 39 passes the vicinity of the ejection detection switch 66.
[0033]
Here, a manual ejection mechanism for ejecting the disk 39 from the cabinet 1 by manual operation when the disk 39 is not carried out even when the eject switch 4 is pressed due to a failure of the microcomputer or the drive circuit will be described.
[0034]
As shown in FIGS. 11 and 12, this manual discharge mechanism is provided on the front panel 2 of the cabinet 1 in addition to the drive mechanisms described above that are driven via a microcomputer and a drive circuit. The manual operation hole 4a for inserting the insertion pin 77 such as a wire from the above, the insertion guide portion 1a provided in the bottom portion of the cabinet 1 for guiding the insertion of the insertion pin 77, and the bottom portion of the cabinet 1, A pinch release lever 78 that can be rotated by an insertion pin 77 and a disc guide 27 are provided on the disc guide 27. When the pinch release lever 78 rotates counterclockwise, it comes into contact with the outer shape of the lever 78 and the pinch portion at the tip of the disc guide 27 From the release lever contact portion 27a to be raised and the manual operation portion 52b pushed by the insertion pin 77 so that the cam drive lever 52 rotates. It has been made.
[0035]
That is, this manual discharge mechanism operates the disc clamping mechanism by rotating the clamping release lever 78 by the insertion pin 77 inserted through the manual operation hole 4a, and manually operates the cam drive lever 52 by the insertion pin 77. By pushing the portion 52b and rotating the cam drive lever 52, the cylindrical cam 20 is driven, and the disk transport mechanism 6, the unit elevating mechanism 8, and the interlocking mechanism 9 are operated manually.
[0036]
Next, an operation when the disk 39 is actually carried into or out of the cabinet 1 in the disk device configured as described above will be described.
[0037]
First, the operation during loading will be described. As shown in FIG. 9, when the disc 39 is inserted from the insertion port 3, the tip portion in the insertion direction comes into contact with the disc insertion detection lever 40 and counterclockwise while resisting the biasing force of the detection lever spring 75. The disc insertion detection lever 40 rotates. When the switching unit 68 of the insertion detection switch 65 is pressed (SW: ON) by the switch pressing unit 67 of the lever 40 by the rotation of the disk insertion detection lever 40, the loading motor 24 starts to rotate counterclockwise. Therefore, this 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 in the inserting direction of the inserted disc 39 reaches between the driving roller 26 and the clamping portion of the disc guide 27, the disc 39 is conveyed while being clamped by these members. At this time, the disc position regulating lever 46 comes into contact with the end face of the disc 39, and the lateral position regulation when the disc 39 is transported is performed.
[0038]
As shown in FIG. 6, when the disk 39 is transported on the disk mounting plate 45 as shown in FIG. 5 and the front end in the transport direction of the disk 39 contacts the disk contact portion 58 of the disk loading lever 47, as shown in FIG. The disk mounting plate 45 is pushed by the disk contact portion 58 and retracts from the insertion port 3 side to a predetermined position, and the disk carry-in support lever 50 rotates counterclockwise around the support shaft 48 as a fulcrum. Abuts against one stopper. As a result, the disk carry-in lever 47 rotates clockwise around the support shaft 50a. At this time, the disc horizontal support lever 46 incorporated in the disc mounting plate 45 is also retracted along the lever moving groove 56 formed in the clamper holder 22. Each disk horizontal support lever 46 is separated. Further, when the disc carry-in lever 47 is rotated clockwise around the support shaft 50a, the cam interlocking plate 51 is advanced to the insertion port 3 side via the plate engaging portion at the other end.
[0039]
As shown in FIG. 7, when the cam interlocking plate 51 advances, the plate engaging portion 59 of the cam drive lever 52 is pushed, and the cam drive lever 52 rotates clockwise while resisting the biasing force of the lever spring 61. As a result, the gear portion 62 provided on the cylindrical cam 22 and the drive gear 63 mesh with each other for the first time. Thereby, the cylindrical cam 20 is rotated counterclockwise by the driving force transmitted from the loading motor 24 through the roller driving gear group 25 and the cam driving gear group 31, and the inclined portion 30 of the cylindrical cam 20 The leading end of the disk guide 27 is raised via the guide raising / lowering pin 29, and the reproducing unit 5 is brought to the reproduction execution position via the raising / lowering guiding groove 21 of the cylindrical cam 20 in which the rotation guide shaft 19 is inserted and held. Raised. At this time, as shown in FIG. 8, the stopper 55 of the mechanical holder 12 and the protrusion 54 formed on the bottom surface of the disk mounting plate 45 are engaged through the biasing force of the mounting plate spring 53, and the disk mounting plate 45 Localize. In this way, the disc guide 27 is separated from the upper surface of the disc 39 as the disc guide 27 is raised, and the bottom surface of the disc 39 is separated from the drive roller 26 as the reproduction unit 5 is raised. As a result, the disk 39 is supported only by the turntable 13 and the clamper 23.
[0040]
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 rotated so as to close the insertion port 3 by the biasing force of the opening / closing door spring 36. Along with the rotation of the cylindrical cam 20, the gear portion 62 of the cylindrical cam 20 and the gear portion 35a of the open / close door holding member 35 mesh with each other, and the door rotation prevention projection 35b rotates and moves to the insertion port 3 side. The opening / closing door 34 is prevented from rotating in the direction in which 3 opens. Thereby, the insertion of another disk from the insertion port 3 is prevented.
[0041]
Thereafter, when the cam drive lever 52 is further rotated clockwise, the loading motor 24 is stopped when the switching unit 73 of the clamp completion detection switch 73 is pressed (SW: ON) by the switch pressing unit 72 of the lever 52. Then, the disc 39 is in a reproducible state.
[0042]
Next, the operation when the disk 39 is carried out from the cabinet 1 will be described. When the eject switch 4 provided on the front panel 2 of the cabinet 1 is pressed, the loading motor 24 is rotated clockwise through the microcomputer and the drive circuit mounted on the circuit board 64. When the loading motor 24 rotates in the clockwise direction, the cylindrical cam 20 is rotated in the clockwise direction by the driving force transmitted through the roller driving gear group 25 and the cam driving gear group 31. As a result, the tip portion of the disk guide 27 supported by the inclined portion 30 of the cylindrical cam 20 via the guide raising / lowering pin 29 rotates downward, and the rotation guide groove 21 of the cylindrical cam 20 rotates the guide. The reproduction unit 5 is lowered via the shaft 19. At this time, when the stopper 55 of the mechanical holder 12 and the protrusion 54 on the bottom surface of the disc mounting plate 45 are disengaged in the reproducing unit 5, the disc mounting plate 45 is moved toward the insertion port 3 by the mounting plate spring 53. To receive a biasing force. On the other hand, when the cylindrical cam 20 is rotated in the clockwise direction, the door rotation preventing projection 35b of the opening / closing door holding member 35 is moved away from the insertion port 3 side, and the tip portion of the disk guide 27 is rotated downward. As a result, the opening / closing door 34 is rotated by the cam portion 33 so as to open the insertion port 3.
[0043]
Further, the disc 39 held again between the lowered holding portion of the tip of the disc guide 27 and the driving roller 26 is transported from the reproducing unit 5 side toward the insertion port 3 side. Thereafter, the tip portion of the disc 39 in the unloading direction comes into contact with the disc ejection detection lever 71, and further, the disc ejection detection lever 71 rotates in the clockwise direction against the urging force of the detection lever spring 76. As the disk discharge detection lever 71 rotates in the clockwise direction, as shown in FIG. 10, the switch pressing section 69 of the lever 71 presses the switching section 70 of the discharge detection switch 66 (SW: ON). The contact portion between the discharge detection lever 71 and the disk 39 exceeds the maximum diameter of the disk 39, and the biasing force of the detection lever spring 76 causes the disk discharge detection lever 71 to rotate counterclockwise, thereby detecting discharge as a push switch. When the switching unit 68 of the switch 66 is restored (SW: OFF), the driving of the loading motor 24 is stopped. At this time, this position of the disk 39 is a position where a part of the disk 39 is sandwiched between the disk guide 27 and the drive roller 26, and at least a part of the disk 39 is exposed from the disk insertion port 2 of the cabinet 1. Position. As a result, the disk 39 can be removed from the cabinet 1 and the disk unloading operation is completed.
[0044]
Further, the operation when the disk 39 is ejected from the cabinet 1 by manual operation when the disk 39 is not carried out even when the eject switch 4 is pushed due to a failure of the microcomputer or the drive circuit will be described.
[0045]
As shown in FIGS. 11 and 12, when the playback unit 5 is in the playback execution position and the disk 39 is clamped, the insertion pin 77 is inserted through the insertion port 3 provided in the front panel 2 of the cabinet 1. Then, the insertion pin 77 contacts the manual operation portion 52b of the cam drive lever 52 while rotating the clamping release lever 78 in the counterclockwise direction. At this time, since the insertion pin 77 is guided in the insertion direction by the insertion guide portion 1a formed in the cabinet 1, the clamping release lever 78 can be reliably rotated, and this rotated clamping release. The lever 78 also serves as an insertion guide for the insertion pin 77 in cooperation with the insertion guide portion 1a, so that the distal end of the insertion pin 77 and the manual operation portion 52b abut securely.
[0046]
Further, when the manual operation portion 52b of the cam drive lever 52 is pressed by the insertion pin 77, the cam drive lever 52 rotates counterclockwise about the support shaft 52a, and the cylindrical cam 20 rotates clockwise. Be made. As a result, the clamping portion at the tip of the disk guide 27 supported by the inclined portion 30 of the cylindrical cam 20 via the guide raising / lowering pin 29 rotates downward. At this time, since the insertion pin 77 is inserted and the clamping release lever 78 is rotated counterclockwise, the outer shape of the clamping release lever 78 and the release lever contact portion 27a of the disk guide 27 come into contact with each other, and the tip of the disk guide 27 This pinching portion is localized at a position sufficiently separated from the outer shape of the driving roller 26 by the thickness of the disk.
[0047]
On the other hand, when the cylindrical cam 20 is rotated in the clockwise direction, the door rotation preventing projection 35b of the opening / closing door holding member 35 is moved away from the insertion port 3 side, and the tip portion of the disk guide 27 is rotated downward. As a result, the opening / closing door 34 is rotated by the cam portion 33 so as to open the insertion port 3.
[0048]
Further, when the cylindrical cam 20 is rotated in the clockwise direction, the lowering of the reproducing unit 5 is started by the elevating guide groove 21 via the rotating guide shaft 19, and the disc sandwiched between the clamper 23 and the turntable 13. 39 clamp is released. At this time, when the stopper 55 of the mechanical holder 12 and the protrusion 54 on the bottom surface of the disc mounting plate 45 are disengaged from each other in the reproducing unit 5, the disc mounting plate 45 receives a biasing force by the mounting plate spring 53 and is inserted into the insertion port 3 side. To be moved forward. Thereafter, when the disk loading support lever 52 rotates clockwise about the support shaft 48 and a part of the lever 52 comes into contact with a stopper provided in the cabinet 1, the advancement of the disk mounting plate 45 stops.
[0049]
At this time, the disk 39 is also moved forward with the movement of the disk mounting plate 45. The advanced position of the disk 39 is a position where at least a part of the disk 39 is exposed from the disk insertion port 3 of the cabinet 1. As a result, the disk 39 can be taken out from the cabinet 1, and thus the disk ejection by the manual operation is completed.
[0050]
As described above, according to the disk device of the present embodiment, when the disk guide 27 for transporting the disk 39 is in the nipping and transporting position, or when the playback unit 5 that plays back the disk 39 is in the playback execution position, By moving the pinch release lever 78 interlocked with the disk guide 27 and the manual operation portion 52b of the cam drive lever 52 through the insertion pin 77 inserted while being guided through the manual operation hole 4a provided in the cabinet 1. The disc guide 27 can be moved to the non-nipping conveyance position, and the reproduction unit 5 can be moved to the non-reproduction execution position. Further, when the clamping release lever 78 and the manual operation portion 52b of the cam drive lever 52 are moved in a state where the disk 39 is housed in the cabinet 1, the opening / closing door 34 that opens and closes the insertion port 3 is inserted into the insertion port. 3 can be opened and at least a part of the disk 39 can be protruded from the insertion slot 3. As a result, in the state where the disk 39 is housed in the cabinet 1, the disk 39 can be easily removed from the cabinet 1 even if a failure occurs in the microcomputer or the drive circuit that controls the drive mechanism system.
[0051]
In the disk device of this embodiment, the drive roller 26 as a disk clamping mechanism is fixed to the cabinet and the tip portion of the disk guide 27 moves in the thickness direction of the disk. You may take the structure moved to a thickness direction.
[0053]
【The invention's effect】
According to the disk device of the present invention, Press the disc against the drive roller For example, when the guide member is in the nipping and conveying position, or when the reproduction unit for reproducing the disk is not in the non-reproduction execution position, the insertion member is inserted and guided through the external operation hole provided in the housing. The guide member can be moved in the non-nipping conveyance position direction and the reproduction unit can be moved to the non-reproduction execution position by operating external operation means such as the nipping release member and the regeneration release member with external force. In addition, the K When this external operation means is operated in the stored state, K The opening / closing member that opens and closes the opening / closing of the housing to be taken in / out can be operated to open the opening and Of At least a portion can protrude from the opening. As a result, the disc K Even when a failure occurs in the electric control system that controls the loading mechanism in the stored state, the disk is disconnected from the inside of the device. The It can be easily taken out.
[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.
3 is a diagram showing in detail a loading mechanism, an interlocking mechanism, and the like inside the disk device of FIG. 1;
4 is a diagram showing in detail a reproduction unit and a disc detection mechanism in the disc apparatus of FIG. 1. FIG.
5 is a view showing a state in which the end face of the disc and the disc carry-in lever are in contact with each other in the disc device of FIG. 1;
6 is a view showing a state in which a disk loading lever is pushed on an end surface of the disk in the disk device of FIG. 1;
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 in which the disc clamping is completed in the disc device of FIG. 1;
9 is a diagram showing a state in which a disc inserted from the insertion slot is detected in the disc apparatus of FIG. 1. FIG.
FIG. 10 is a diagram showing a state in which the disk has been unloaded from the cabinet by pressing the eject switch in the disk device of FIG. 1;
11 is a diagram showing a state before starting to eject a disk from a cabinet by a manual operation in the disk device of FIG. 1;
FIG. 12 is a diagram showing a state in which the disk is manually ejected from the cabinet by the manual operation in the disk device of FIG. 1;
[Explanation of symbols]
1 …… Cabinet
1a …… Insertion guide
3 …… Insertion slot
4. Eject switch
4a …… Manual operation hole
5 …… Reproduction unit
6 …… Disc transport mechanism
7. Disk detection mechanism
8 …… Unit lifting mechanism
9 …… Interlocking mechanism
20 …… Cylindrical cam
24 …… Loading motor
26 …… Conveying roller
27 …… Disc guide
27a …… Release lever contact part
33 …… Cam part of disc guide
34 …… Open / close door
35 …… Opening / closing door holding member
36 …… Opening / closing door spring
39 …… Disc
40 …… Disc insertion detection lever
45 …… Disk mounting plate
46 …… Disc position control lever
47 …… Disc loading lever
50 …… Disc loading support lever
51 …… Cam interlocking plate
52 …… Cam drive lever
52b …… Manual operation unit
65 …… Insertion detection switch
66 …… Discharge detection switch
71 …… Disc ejection detection lever
77 …… Insertion pin
78 …… Clamp release lever

Claims (6)

A housing having an opening through which a disk is inserted and removed, and a playback unit for driving and reproducing the disk;
A driving roller that is rotated by transmitting a driving force; and a guide member that presses the disk against the driving roller. The opening of the housing and the reproduction are held while the disk is held between the driving roller and the guide member. A disk transport mechanism for transporting the disk to and from the unit by the rotational force of the drive roller ;
A disk clamping mechanism that moves either the drive roller or the guide member in a thickness direction of the disk between a clamping conveyance position where the disk can be clamped and conveyed and a non-nipping conveyance position;
A clamping release member that operates the disk clamping mechanism to move either the driving roller or the guide member toward the non-clamping conveyance position when either the driving roller or the guide member is in the clamping conveyance position. When,
When the clamping release member is operated by an external force while the disc is housed in the housing, the disc is directed toward the opening so that at least a part of the disc protrudes from the opening. And a biasing means for biasing the disk device. The disk device according to claim 1,
An opening and closing member moving mechanism for moving an opening and closing member for opening and closing the opening;
An opening / closing member interlocking mechanism that interlocks the clamping cancellation member and the opening / closing member moving mechanism so that the opening / closing member opens the opening when the sandwiching release member is operated by an external force. A disk unit. A housing having an opening through which a disk is inserted and removed, and a playback unit for driving and reproducing the disk;
A driving roller that is rotated by transmitting a driving force; and a guide member that presses the disk against the driving roller. The opening of the housing and the reproduction are held while the disk is held between the driving roller and the guide member. A disk transport mechanism for transporting the disk to and from the unit by the rotational force of the drive roller ;
A disk clamping mechanism that moves the guide member in the thickness direction of the disk between a clamping conveyance position where the disk can be clamped and conveyed and a non-nipping conveyance position;
A clamping release member for operating the disc clamping mechanism with an external force so that the guide member moves toward the non-clamping conveyance position when the guide member is in the clamping conveyance position;
When the clamping release member is operated by an external force while the disc is housed in the housing, the disc is directed toward the opening so that at least a part of the disc protrudes from the opening. And a biasing means for biasing the disk device. A housing having an opening through which a disk is inserted and removed, and a playback unit for driving and reproducing the disk;
A driving roller that is rotated by transmitting a driving force; and a guide member that presses the disk against the driving roller. The opening of the housing and the reproduction are held while the disk is held between the driving roller and the guide member. A disk transport mechanism for transporting the disk to and from the unit by the rotational force of the drive roller ;
A disk clamping mechanism for moving the drive roller or the guide member in a thickness direction of the disk between a clamping conveyance position where the disk can be clamped and conveyed and a non-nipping conveyance position;
A disk clamping mechanism having a mounting position for mounting the disk on a disk mounting surface on the reproduction unit and a separation position for releasing the disk from the mounting surface;
The disk clamping mechanism and the disk are configured such that when the disk clamping mechanism is not in the separation position, the disk clamping mechanism moves to the separation position and prevents the drive roller or the guide member from moving to the clamping conveyance position. An external operation means for operating the clamp mechanism with external force;
An external operation hole provided in the housing for operating the external operation means with external force;
When the external operation means is operated by an external force through the external operation hole in a state where the disk is housed in the housing, the disk is protruded from the opening. And a biasing means for biasing the disk toward the opening. The disk device according to claim 4 , wherein
The external operation means is
For operating the disc clamping mechanism with an external force through an insert inserted from the external operation hole so that the guide member moves toward the non-clamping conveyance position when the guide member is in the clamping conveyance position. A clamping release member;
Regeneration cancellation for operating the unit moving mechanism with external force through an insert inserted from the external operation hole so that the reproduction unit moves to the non-reproduction execution position when the reproduction unit is not in the non-reproduction execution position. And a disk device. The disk device according to claim 5 , wherein
A disc device comprising: an insertion guide portion for the insert so that the insert inserted from the external operation hole is directed to the clamping release member and the regeneration release member.

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