JP2006004493A - Eject mechanism and disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eject surely a disk cartridge from a holder at the time of eject operation. <P>SOLUTION: An engaging state of a first lock is released by bending a first lock plate 42 when a holder 8 is rotated to a loading position from an unloading position, while a second lock engaging state is formed, at the same time the second lock engaging state is released, a supported part 40 of an eject lever 21 is slid to an ejection direction by utilizing energizing force of an energizing spring , a disk cartridge 100 loaded in the holder 8 can be ejected. Thereby, the disk cartridge 100 can be ejected surely linking with rotation of the holder 8 from the loading position to the the unloading position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ejection mechanism and a disk device, and is suitably applied to an ejection structure of a disk cartridge in which a disk-shaped recording medium such as a mini disk is housed in a cartridge.

  2. Description of the Related Art Conventionally, there is a disk device that records music data on a disk cartridge such as a mini disk or reproduces music data recorded on the disk cartridge. For example, a disk-shaped recording medium having a diameter of 64 mm A disk cartridge in which the disk is rotatably stored is loaded into the case body of the disk device and used.

This disc apparatus is equipped with an eject mechanism for ejecting a disc cartridge held by a holder inside the case body after recording or reproduction of music data is completed (see, for example, Patent Document 1).
JP 2000-149375 JP

  Specifically, as shown in FIGS. 19 and 20, in the conventional eject mechanism 200, a holder 202 is pivotally supported by a shaft 203 with respect to a mechanical chassis 201 in the disk device, and the eject mechanism 200. When the disk cartridge 100 is inserted in and removed from the holder 202 at a position rotated in a direction away from the mechanical chassis 201, the ejection mechanism 200 is substantially removed from the mechanical chassis 201. A disc cartridge mounted state for recording or reproducing music data can be held at an intimate position (not shown).

  Here, regarding the ejection mechanism 200, the direction in which the disc cartridge 100 is inserted is the rear direction, the direction in which the disc cartridge 100 is ejected is the front direction, and the user confronts the insertion slot into which the disc cartridge 100 is inserted. In the state, the right side is the right direction and the left side is the left direction.

  The ejection mechanism 200 is provided with positioning pins 204 and 205 protruding upward at the front end portion and the rear end portion of the mechanical chassis 201, and is positioned with respect to the positioning holes 101 and 102 of the disc cartridge 100 when the disc cartridge is mounted. The disc cartridge 100 is positioned with respect to the mechanical chassis 201 by inserting the pins 204 and 205.

  An eject lever 206 slidable in the front-rear direction along the right side surface 202A is provided on the right side surface 202A of the holder 202 via a movement range limiting space 207 and a stopper 208 formed in the longitudinal direction of the right side surface 202A. It is supported movably.

  The eject lever 206 includes a supported portion 206A having a predetermined length in the front direction and the rear direction, and an elastic deformation that is elastically deformable in a substantially vertical direction that is provided substantially in parallel with the supported portion 206A. Portion 206B, a disc cartridge pressing portion 206C protruding leftward from the rear end portion of supported portion 206A (inner direction of holder 202), and a protruding portion protruding downward from the front end portion of elastic deformation portion 206B 206D is integrally formed.

  A spring hook portion 206E is formed at the front end portion of the elastic deformation portion 206B, and a lock portion 206F is formed next to the spring hook portion 206E. An engaging protrusion 206G that protrudes slightly in the right direction (outer direction of the holder 202) is formed at the lower end of the protrusion 206D.

  On the other hand, on the right side surface portion 202A of the holder 202, a spring hooking portion 209 corresponding to the spring hook portion 206E formed on the elastic deformation portion 206B of the eject lever 206, and a lock portion formed on the elastic deformation portion 206B of the eject lever 206. Locked portions 210 corresponding to 206F are provided at positions separated from each other in the front-rear direction.

  A tension coil spring 211 is stretched between the spring hooking portion 209 of the holder 202 and the spring hooking portion 206E of the eject lever 206, and the eject lever 206 is always attached in the forward direction by the biasing force of the tension coil spring 211. It will be in a state of power.

  An L-shaped unlocking member 212 is provided on the outer surface side (right direction) of the right side surface portion 202A of the holder 202, and the engaged portion 212A at the tip of the unlocking member 212 faces forward. It is attached and fixed to the mechanical chassis 201 (FIG. 19) in a protruding state.

  The eject mechanism 200 is opened at a predetermined angle so that the front end of the holder 202 is positioned above the mechanical chassis 201 before the disc cartridge is inserted into the holder 202, and the eject lever 206 is A state where the spring 211 is positioned forward of the moving range by the urging force of the spring 211 (that is, a disk cartridge insertion / removal state).

  When the disc cartridge 100 is inserted into the holder 202 from the front direction, the eject mechanism 200 is pushed with the rear end portion of the disc cartridge 100 in contact with the disc cartridge pressing portion 206C, and the eject mechanism 200 is ejected. The lever 206 is moved backward against the biasing force of the tension coil spring 211.

  Thereafter, as shown in FIG. 21, in the eject mechanism 200, the lock portion 206F of the eject lever 206 is engaged with the locked portion 210 of the holder 202, and the eject lever 206 is held at the rear end of the moving range. .

  As shown in FIG. 22, the holder 202 with the disk cartridge 100 inserted is rotated in a direction approaching the mechanical chassis 201 via the shaft 203, so that the front end portion of the holder 202 is moved relative to the mechanical chassis 201. The disk cartridge 100 and the mechanical chassis 201 are positioned by inserting the positioning pins 204 and 205 of the mechanical chassis 201 into the positioning holes 101 and 102 of the disk cartridge 100, respectively (ie, the disk cartridge). Wearing state).

  As a result, in the disk device, the disk-shaped recording medium of the disk cartridge 100 is mounted on the disk table of the mechanical chassis 201, and the disk-shaped recording medium is rotated along with the rotation of the disk table, and by an optical pickup (not shown). Recording or reproduction of music data is performed.

  The disk device is formed on the protrusion 206D of the eject lever 206 when the recording or reproduction of the music data on the disk-shaped recording medium is completed and the holder 202 of the eject mechanism 200 is rotated in a direction away from the mechanical chassis 201. The engaged protrusion 206G engages with the engaged portion 212A of the unlocking member 212 from below (FIG. 22).

  When the engaging projection 206G is engaged with the engaged portion 212A of the unlocking member 212 from below and the holder 202 continues to rotate in the direction away from the mechanical chassis 201, the eject mechanism 200 is elastic. Since the movement of the deformation portion 206B is restricted, the elastic deformation portion 206B is deformed downward relative to the supported portion 206A, and the engagement state between the lock portion 206F of the eject lever 206 and the locked portion 210 of the holder 202 Is released, and the eject lever 206 is moved forward by the urging force of the tension coil spring 211.

  The ejection mechanism 200 completes the ejection operation by pushing the disk cartridge 100 forward and ejecting a part of the disk cartridge 100 from the holder 202 by the moment when the eject lever 206 moves forward by the urging force. It is made like that.

  By the way, in the eject mechanism 200 having such a configuration, while the holder 202 is rotated in a direction away from the mechanical chassis 201, the engaging protrusion 206G of the eject lever 206 and the engaged portion 212A of the lock release member 212 are lowered. Since the engagement state between the lock portion 206F of the eject lever 206 and the locked portion 210 of the holder 202 is released by hooking from the direction, the engagement protrusion 206G of the holder 202 and the lock release member 212 of the lock release member 212 are released. When the component accuracy and the mutual combination accuracy with respect to the engaged portion 212A are low, the lock portion 206F of the eject lever 206 cannot be hooked on the locked portion 210 of the holder 202 and the engaged state cannot be released. there were.

  For this reason, the eject mechanism 200 has a problem that the disk cartridge 100 cannot be ejected from the holder 202 during the eject operation, and is structurally insufficient.

  Further, the eject mechanism 200 employs a structure in which the engaging protrusion 206G of the eject lever 206 is hooked from the downward direction with respect to the engaged part 212A of the unlocking member 212, whereby the engaging protrusion 206G. There is also a problem that when it gets caught on something, it bends and breaks.

  The present invention has been made in view of the above points, and an object of the present invention is to propose an ejection mechanism and a disk device having a simple configuration that can reliably eject a disk cartridge from a holder during an ejection operation.

  In order to solve such a problem, the present invention is an eject mechanism for a disc cartridge containing a disc-shaped recording medium, wherein a first locked portion having a predetermined shape is integrally formed, and the disc cartridge is inserted or ejected. A holder that rotates between an insertion / removal position and a mounting position at which the disk-shaped recording medium of the disk cartridge is mounted at a predetermined position on the mechanical chassis, and the insertion direction or ejection of the disk cartridge with respect to the holder The supported portion supported slidably in the direction and the disc cartridge loaded by engaging the first locked portion when the disc cartridge is inserted while the holder is held in the insertion / removal position. The first lock engagement portion that holds the state and forms the first lock engagement state, and the holder is mounted from the insertion / removal position The first lock engagement state is released by pushing and bending the supported portion upward from below when it is rotated to the mounting position, and the disc cartridge is held in the mounting position while maintaining the released state. An eject lever integrally formed with a second lock engagement portion forming a second lock engagement state, and a tension between the holder and the eject lever, and biasing the eject lever in the discharge direction And a biasing spring when the second lock engagement state by the second lock engagement portion of the eject lever is released in conjunction with the rotation of the holder from the mounting position to the insertion / removal position. The disk cartridge loaded in the holder is ejected by sliding the supported portion of the eject lever in the ejecting direction using the urging force generated by.

  In the eject mechanism of the present invention, when the holder is rotated from the insertion / removal position to the mounting position, the supported portion is pushed upward from below and bent to release the first lock engagement state and the second lock engagement state. To release the second lock engagement state and simultaneously use the urging force of the urging spring to slide the supported portion of the eject lever in the ejection direction to eject the disk cartridge loaded in the holder. Therefore, the disk cartridge can be reliably discharged in conjunction with the rotation from the mounting position of the holder to the insertion / removal position without using a complicated configuration.

  Further, in the eject mechanism of the present invention, the eject lever releases the first lock engagement state when the holder is rotated from the insertion / removal position to the mounting position, and at the same time, is supported by the biasing force of the biasing spring. By engaging the second lock engaging portion with the second locked portion having a predetermined shape provided in the mechanical chassis at a position where the position is slightly moved in the discharging direction to form a second lock engaging state. Since it is possible to prevent returning to the first lock engagement state again, it is possible to reliably prevent the return to the first lock engagement state without requiring a special complicated structure only by changing the position of the supported portion. can do.

  The disc device of the present invention is a disc device equipped with an eject mechanism for a disc cartridge containing a disc-shaped recording medium, wherein the eject mechanism is integrally formed with a first locked portion having a predetermined shape. A holder that rotates between an insertion / removal position for insertion or ejection and a mounting position for mounting the disk-shaped recording medium of the disk cartridge at a predetermined position on the mechanical chassis, and a disk cartridge with respect to the holder A supported portion that is slidably supported in the insertion direction or the ejection direction, and the first locked portion when the disc cartridge is inserted while the holder is held in the insertion / removal position. A first lock engagement portion that holds the disk cartridge in a loaded state to form a first lock engagement state; When the rudder is rotated from the insertion / removal position to the mounting position, the first lock engagement state is released by pushing up and bending the supported portion from the lower side to the upper side, and the disc cartridge is maintained while the release state is maintained. Is held between the holder and the ejector lever, and the ejector lever is held between the ejector lever and the ejector lever. A biasing spring that biases in the discharging direction, and the second lock engagement state by the second lock engagement portion of the eject lever is released in conjunction with the rotation of the holder from the mounting position to the insertion / removal position. When this occurs, the urging force of the urging spring is used to slide the supported portion of the eject lever in the ejection direction so that the disk cartridge loaded in the holder is ejected.

  In the disk device of the present invention, when the holder is rotated from the insertion / removal position to the mounting position, the supported portion is pushed upward from below and bent to release the first lock engagement state and the second lock engagement state. To release the second lock engagement state and simultaneously use the urging force of the urging spring to slide the supported portion of the eject lever in the ejection direction to eject the disk cartridge loaded in the holder. Therefore, the disk cartridge can be reliably discharged in conjunction with the rotation from the mounting position of the holder to the insertion / removal position without using a complicated configuration.

  According to the present invention, when the holder is rotated from the insertion / removal position to the mounting position, the supported portion is pushed upward from below and bent to release the first lock engagement state and the second lock engagement state. Forming and releasing the second lock engagement state, and simultaneously using the urging force of the urging spring to slide the supported portion of the eject lever in the ejection direction to eject the disk cartridge loaded in the holder. Therefore, it is possible to reliably eject the disk cartridge in conjunction with the rotation of the holder from the mounting position to the insertion / removal position, thus simply ejecting the disk cartridge from the holder during ejection operation. In addition, a disk device can be realized.

  Hereinafter, an embodiment of the invention will be described in detail with reference to the drawings.

(1) Appearance Configuration of Disc Device In FIGS. 1 and 2, reference numeral 1 denotes a disc device as a whole on which the eject mechanism of the present invention is mounted, and a disc cartridge 100 (64) that rotatably accommodates a disc-shaped recording medium having a diameter of 64 mm. 2) is set as a loading target, and music data is recorded on the disk-shaped recording medium 104 of the disk cartridge 100, and music data is reproduced from the disk-shaped recording medium 104.

  The disk device 1 includes a main body case 2 and a cover body 3 that is rotatably supported with a rear end portion of the main body case 2 as a fulcrum, and the cover body 3 is used when the disk cartridge 100 is inserted or ejected. The main body case 2 is opened to a predetermined angle, and the main body case 2 is closed by the cover body 3 when recording or reproducing the music data.

  The main body case 2 is provided with an open slider 4 for turning the cover body 3 from the closed position to an open position at a predetermined angle, a headphone jack 5 and a connector 6 for connecting various devices on its peripheral side surface. Although not shown, the main body case 2 is also provided on other peripheral side surfaces for various operation buttons such as a reproduction operation, a recording operation, and a volume adjustment.

  The cover body 3 is provided with a display unit 7 formed of a liquid crystal display for displaying recording time, reproduction time, or remaining battery capacity, and displaying icons indicating various states such as recording, reproduction, and stop. ing.

  In the disk device 1, the direction in which the disk cartridge 100 is inserted into the holder 8 is defined as the rear direction, the direction in which the disk cartridge 100 is ejected from the holder 8 is defined as the front direction, and the holder 8 for inserting the disk cartridge 100 is inserted. In the state where the user faces the mouth, the right side is defined as the right direction and the left side is defined as the left direction.

  In the disk device 1 (FIG. 2), a mechanical chassis 10 is disposed inside a main body case 2, and a holder 8 is rotatably supported with a rear end portion of the mechanical chassis 10 as a fulcrum. The holder 8 is opened and closed in conjunction with the rotation of the cover body 3 with respect to the main body case 2, and the disk-shaped recording medium 104 of the disk cartridge 100 is stored in the disk table of the mechanical chassis 10 with the cover body 3 closed. Transition is made between a mounting position for mounting (not shown) and an insertion / removal position when the disk cartridge 100 is inserted into or removed from the holder 8 with the cover 3 opened. .

  Further, the main body case 2 is provided with a lock piece 9 interlocked with a slide operation with respect to the open slider 4 at a substantially central position along the front surface portion thereof, and is locked to a lock member 11 provided inside the front surface of the cover body 3. When the piece 9 is engaged, the cover body 3 and the main body case 2 are locked in the closed state (FIG. 1), and the disk cartridge 100 is positioned at the mounting position.

  Further, when the disk device 1 slides the open slider 4 in the closed state, the engagement state between the lock piece 9 and the lock member 11 is released, and the cover body 3 is attached to the mechanical chassis 10 by the action of a spring member (not shown). Then, it is rotated to the open position to reach the insertion / removal position for ejecting the disk cartridge 100.

  Here, the disc cartridge 100 is configured such that a disc-shaped recording medium 104 is rotatably accommodated in a case body 103 having a rectangular flat box shape, and a transparent portion provided at the center of the lower surface of the case body 103. A shutter 105 that opens and closes a hole (not shown) is slidably attached.

  In the disk cartridge 100, a groove 106 extending in the insertion or ejection direction of the disk cartridge 100 is formed on the side surface of the portion of the case body 103 where the shutter 105 is attached, and positioning holes 101 and 101 are formed on the lower surface of the case body 103. 102 is formed.

  Further, the disc cartridge 100 has an engagement hole 105A formed in the side surface portion of the shutter 105. When the disc cartridge 100 is inserted into the disc device 1, the shutter 105 slides through the engagement hole 105A. The recording surface of the disc-shaped recording medium 104 is irradiated with a laser beam from the optical pickup by opening a transmission hole provided in the central portion of the disc-shaped recording medium 104.

(2) Structure of Ejection Mechanism As shown in FIG. 3, the ejection mechanism 20 mounted on the disk device 1 includes a holder 8 and an ejection lever 21 used in combination with the holder 8. Hereinafter, the configuration of the holder 8 and the eject lever 21 will be described.

(2-1) Configuration of Holder The holder 8 is formed by bending a metal plate-like member into a predetermined shape, and is suspended downward from the top plate portion 22 and the left and right side edges of the top plate portion 22. Side surface portion 23 (only one is shown) and a receiving plate portion 25 (only one is shown) projecting from the lower edge of the side surface portion 23 toward each other, and the opening at the front end is inserted It is formed as a mouth 8A.

  The top plate portion 22 of the holder 8 is provided with a first spring portion 26 (only one is shown) at a position separated from the left and right, and the distal end portion of the first spring portion 26 is more than the base end portion. It is formed so as to be warped upward.

  The first spring portion 26 is elastically contacted with the lower surface of the cover body 3 (FIG. 2). When the cover body 3 reaches the open position, the holder 8 is moved to the cover body 3 by the urging force of the first spring portion 26. It is made to hold | maintain in the insertion / removal position slightly separated from.

  When the holder 8 is held at the insertion / removal position by the first spring portion 26, the holder 8 is positioned slightly separated from the cover body 3, so that the disk cartridge 100 is inserted into the holder 8 or ejected. In some cases, the disk cartridge 100 can be prevented from interfering with the front end portion of the cover body 3 in advance.

  When the cover body 3 is held at the closed position, the holder 8 is pressed against the mechanical chassis 10 by the first spring portion 26 being elastically contacted with the lower surface of the cover body 3. It will be held in the mounting position.

  Further, the top plate portion 22 of the holder 8 is provided with second spring portions 27 (only one is shown) at positions separated from each other on the left and right sides, and the distal end portion 27A of the second spring portion 27 is the base end. It is formed so as to be slightly warped downward from the portion.

  The second spring portion 27 is elastically contacted with the upper surface of the disk cartridge 100 inserted into the holder 8 and is inserted into the holder 8 and positioned (hereinafter, this state is referred to as loading). Press against the receiving plate portion 25 of the holder 8.

  As a result, in the state in which the disc cartridge 100 is loaded in the holder 8, the disc device 100 is pressed by the second spring portion 27, so that the disc cartridge 100 held by the holder 8 does not rattle. It is designed to prevent it.

  A hooking piece 28 (only one is shown) projecting outward is provided at the front upper edge of the side surface portion 23 of the holder 8, and the hooking piece 28 is formed in the cover body 3. It is made to engage with a pair of hook parts (not shown).

  As a result, the disc device 1 is hooked in the cover body 3 when the cover body 3 is rotated and opened from the main body case 2 by a predetermined angle from the state in which the cover body 3 is in the closed position, that is, the holder 8 is in the mounting position. A portion (not shown) and the hook piece 28 of the holder 8 are engaged, and the holder 8 is rotated to the insertion / removal position in conjunction with the rotation of the cover body 3 from the state to the open position. Has been made.

  On the side surface portion 23 of the holder 8, a spring hooking protrusion 29 formed by cutting and raising the side surface portion 23 is formed immediately behind the hooking piece 28, and the hooking piece 28 and the spring hooking protrusion 29 are formed. A shutter opening / closing spring 30 formed by cutting and raising the side surface portion 23 is provided below.

  Further, in the vicinity of the center in the longitudinal direction of the side surface portion 23 of the holder 8, the holder 8 is formed so as to protrude outward from the side surface portion 23 by being raised from the side surface portion 23 and orthogonal to the side surface portion 23. A thin plate-shaped and rectangular first locked portion 31 is formed.

  Further, in order to limit the range of movement of the eject lever 21 in the longitudinal direction, the side surface portion 23 of the holder 8 is provided with hook-shaped stoppers 32 and 33 each having a circular shape with a shaft portion slightly protruding from the side surface portion 23. The long hole 24 that determines the movable range of the eject lever 21 is fitted into the shaft portions of the stoppers 32 and 33.

(2-2) Configuration of Eject Lever The eject lever 21 (FIG. 3) is fitted to the stoppers 32 and 33 of the side surface portion 23 of the holder 8 through the elongated holes 24 and has a predetermined length that slides in the longitudinal direction. When the support portion 40 is supported by the side portion 23 of the holder 8, the notched spring-hanging portion 44 projecting rightward (outward direction of the holder 8) from the front end of the supported portion 40. A guide plate 45 that slides in the front-rear direction while being inserted into the guide groove 34, and a disc cartridge pressing portion 46 that protrudes to the left (inward direction of the holder 8) from the rear end portion of the guide plate 45. And are integrally formed as a whole.

  A tension coil spring 35 used as an urging spring is stretched between the spring hook 44 of the eject lever 21 and the spring hook 29 of the holder 8 so that the eject lever 21 is always attached in the disc ejection direction. It is made to be enthusiastic.

  The eject lever 21 is flexible in a vertical direction orthogonal to the longitudinal direction of the supported portion 40 and gradually protrudes downward from a predetermined position near the center rear of the supported portion 40 toward the front end. An elongated first lock plate 42 having the shape described above is formed integrally with the supported portion 40.

  Further, the eject lever 21 is formed at a predetermined position of the first lock plate 42 with a thin plate-like and rectangular second lock plate 43 protruding outward, and a first lock engagement state to be described later is established. A role for releasing and a role for making a transition to a second lock engagement state to be described later are performed.

(2-3) Configuration of Mounting Plate A mounting plate 50 is provided on the mechanical chassis 10 on the inner peripheral surface side of the main body case 2, and the mounting plate 50 is a stopper that blocks the movement of the eject lever 21 in the disc ejection direction. The second locked portion 51 that plays a role and the contact portion 52 that has a contact surface 52A for contacting the second lock plate 43 of the eject lever 21 to release the first lock engagement state are integrally formed. Has a different structure.

  A slight gap of a predetermined interval is provided between the second locked portion 51 and the abutting portion 52 of the mounting plate 50, whereby the eject lever 21 when a second lock engagement state described later is formed. And the eject lever 21 can be prevented from returning to the first lock engagement state when the second lock engagement state is released.

  Here, the mounting plate 50 is configured such that the contact surface 52A of the contact portion 52 and the second lock plate 43 of the eject lever 21 are in contact with each other by surface contact, and the rotation of the holder 8 is not required without requiring high accuracy. It is designed to ensure contact according to the dynamic motion.

  As a result, when the holder 8 rotates from the insertion / removal position to the mounting position in a state where the disk cartridge 100 is loaded at the insertion / removal position of the holder 8, the contact portion 52 of the mounting plate 50 is moved to the second position of the eject lever 21. When the lock plate 43 and the contact portion 52 are in surface contact, the first lock engagement state is released as will be described later, and the second lock engagement of the distal end portion of the eject lever 21 in the second lock plate 43 is performed. The second lock engagement state is formed by bringing the portion 43 and the second locked portion 51 of the mounting plate 50 into contact with each other.

(2-4) Combined State of Holder and Ejector Lever As shown in FIG. 4, the eject mechanism 20 includes a spring protrusion 29 of the holder 8 and the ejector lever when the holder 8 and the ejector lever 21 are combined. The tension coil spring 35 is stretched between the spring hooking portion 44 of the spring 21 and the eject lever 21 is moved to the forefront within the movement range regulated by the stoppers 32 and 33 by the biasing force of the tension coil spring 35. The predetermined position, that is, the insertion / removal position when the disk cartridge 100 is inserted or ejected can be positioned.

  At this time, since the holder 8 is in the insertion / removal position, the eject mechanism 20 has the supported portion 40 of the eject lever 21 in contact with the second locked portion 51 of the mounting plate 50 provided on the inner peripheral surface side of the main body case 2. There is no contact with any of the parts 52.

  When the disc cartridge 100 is inserted from the insertion port 8A of the holder 8, the eject mechanism 20 pushes the disc cartridge pressing portion 46 by the inserted disc cartridge 100, thereby causing the eject lever 21 to move the guide lever 34 and the guide groove 34. The disk cartridge 100 is moved backward through the plate 45 so that the disk cartridge 100 can be positioned in a loaded state.

(3) Eject Operation Next, the process in the eject operation from the time when the disk cartridge is inserted to the time when the disk cartridge is ejected by the eject mechanism 20 in the disk device 1 will be described in order, divided into seven stages from the first operation to the seventh operation. .

(3-1) When a Disc Cartridge is Inserted As shown in FIGS. 5 and 6, the eject mechanism 20 inserts the holder 8 when the disc cartridge 100 is inserted at the insertion / removal position of the holder 8 as a first operation. The rear end portion of the disk cartridge 100 inserted from the opening 8 </ b> A is in a state where it only comes into contact with the disk cartridge pressing portion 46.

  At this time, in the eject mechanism 20, the disc cartridge 100 is inserted into the holder 8, and the eject lever 21 is moved to the foremost position within the moving range by the urging force of the tension coil spring 35 as it is, that is, the holder 8 is in the insertion / removal position. As long as the eject lever 21 is positioned, the eject lever 21 does not come into contact with any of the second locked portion 51 and the contact portion 52 of the mounting plate 50 attached to the mechanical chassis 10 of the main body case 2.

  That is, in the eject mechanism 20, when the disc cartridge 100 is inserted into the holder 8 and the rear end portion of the disc cartridge 100 is just in contact with the disc cartridge pressing portion 46, the first lock of the eject lever 21 is established. Neither the first lock engagement portion 42A of the plate 42 nor the second lock engagement portion 43A of the second lock plate 43 is engaged.

(3-2) Disc Cartridge Insertion State As shown in FIGS. 7 and 8, the eject mechanism 20 performs the second operation in which the rear end portion of the disc cartridge 100 inserted from the insertion port 8A of the holder 8 is pressed against the disc cartridge. By being pushed while being in contact with the portion 42, the eject lever 21 is gradually pushed downward through the guide groove 32 and the guide plate 45 against the urging force of the tension coil spring 35.

  At this time, the eject mechanism 20 is gradually pushed downward while the first lock engaging portion 42 </ b> A of the first lock plate 42 of the eject lever 21 rides on the first locked portion 31 of the holder 8. Incidentally, the first lock plate 42 is slightly bent in a direction perpendicular to the longitudinal direction when the first lock engaging portion 42 </ b> A rides on the first locked portion 31.

(3-3) First Lock Engagement State As shown in FIGS. 9 and 10, the eject mechanism 20 performs the first operation when the eject lever 21 is positioned close to the end within the movement range by the stopper 33. The first lock engaging portion 42A of the lock plate 42 and the end surface 31A of the first locked portion 31 of the holder 8 are in an engaged state (hereinafter referred to as a first lock engaged state), and the disc cartridge 100 is loaded.

  At this time, the eject mechanism 20 always holds the disc cartridge 100 at the corresponding position because the eject lever 21 is always forwardly biased by the bias force of the tension coil spring 35 in the first lock engagement state. (That is, the first lock engagement state can be maintained).

  As described above, when the disc cartridge 100 is loaded when the holder 8 is in the insertion / removal position, the ejection mechanism 20 is interlocked with the disc cartridge pressing portion 46 being gradually pushed backward by the disc cartridge 100. With the first lock engaging portion 42A of the plate 42 riding on the first locked portion 31, the first lock plate 42 is pushed downward while bending upward, and finally the first lock plate 42 The first lock engaging portion 42A and the end surface 31A of the first locked portion 31 of the holder 8 abut and engage with each other, whereby the disk cartridge 100 can be positioned and held, thereby forming the first lock engaging state. It is made to be able to do.

(3-4) Transition from Release of First Lock Engagement State to Second Lock Engagement State As shown in FIGS. 11 and 12, the eject mechanism 20 closes the cover body 3 from the open position as a fourth operation. The holder 8 is moved from the insertion / removal position to the mounting position in accordance with the operation to be closed to the state.

  At this time, in the eject mechanism 20, the second lock plate 43 of the eject lever 21 is pressed against the contact surface 52 </ b> A of the contact portion 52 of the mounting plate 50 while the holder 8 is rotating toward the mounting position. As a result, the first lock plate 42 of the eject lever 21 is bent in the vertical direction.

  By the way, in a state where the disc cartridge 100 is loaded in the holder 8, there is a slight gap between the second lock engaging portion 43 of the second lock plate 43 of the eject lever 21 and the second locked portion 51 of the mounting plate 50. Since a gap is provided, the second lock engagement portion 43 of the second lock plate 43 and the second locked portion 51 of the mounting plate 50 are connected at this stage, that is, while the first lock engagement state is maintained. There is no engagement.

  As shown in FIG. 13 and FIG. 14, as the fifth operation, the eject mechanism 20 moves the eject lever 21 of the eject lever 21 when the cover body 3 is more closed than in the fourth operation and the disk cartridge 100 is completely shifted to the mounting position. The second lock plate 43 is pressed more strongly against the contact surface 52 </ b> A of the contact portion 52 of the mounting plate 50.

  As a result, the eject mechanism 20 is pushed upward as soon as the first lock plate 42 of the eject lever 21 is further bent in the vertical direction, and the first lock engagement portion 42A of the first lock plate 42 and the first cover of the holder 8 are The first lock engagement state with the lock portion 31 is released.

  This is canceled by hooking the engaging projection 206G of the holder 202 and the engaged portion 212A of the unlocking member 212 from the lower direction as in the conventional eject mechanism 200 (FIGS. 19 to 22). Compared to the case, it means that the first lock engagement state can be released more easily by the amount that does not require the complicated operation of the ejection mechanism 20 in the present embodiment to be hooked.

  As shown in FIGS. 15 and 16, the eject mechanism 20 has a first operation between the first lock engaging portion 42 </ b> A of the first lock plate 42 and the first locked portion 31 of the holder 8 as the sixth operation. When the lock engagement state is released, the second lock formed by the end face of the second lock plate 43 of the eject lever 21 is almost simultaneously with the eject lever 21 being pulled back in the disc ejection direction by the biasing force of the bias spring 35. The engaging portion 43A and the second locked portion 51 of the mounting plate 50 are brought into contact with each other to engage with each other, thereby forming a second lock engagement state.

  At this time, the ejection mechanism 20 can form the second lock engagement state at a predetermined position where the ejection lever 21 is slightly pulled back in the disc ejection direction by the urging force of the urging spring 35. Even when the lock engagement state is released, the first lock engagement portion 42 </ b> A of the first lock plate 42 can be prevented from being engaged again with the end surface 31 </ b> A of the first locked portion 31 of the holder 8. Has been made.

  The disc apparatus 1 is in a closed state in which the cover body 3 is completely closed with respect to the main body case 2, that is, in the second lock engagement state in which the holder 8 is in the mounted state. The music data is recorded or the music data is reproduced from the disc-shaped recording medium 104.

  Thus, when the holder 8 transitions from the insertion / removal position to the mounting position, the eject mechanism 20 shifts to the second lock engagement state simultaneously with releasing the first lock engagement state, and the second lock engagement state. Recording or reproduction with respect to the disk cartridge 100 is performed while maintaining the above.

(3-5) Second Lock Release State As shown in FIGS. 17 and 18, the eject mechanism 20 rotates from the attachment position of the holder 8 to the insertion / removal position in conjunction with the opening movement of the cover body 3 as a seventh operation. While moving, the second lock engaging portion 43 of the second lock plate 43 of the eject lever 21 moves upward while sliding on the surface of the second locked portion 51 of the mounting plate 50, and finally the second The two-lock engagement state is released.

  At this time, the eject mechanism 20 prevents the first lock engagement state from being returned to the first lock engagement state while the first lock engagement state is already released at the time of the second lock engagement state. Both the state and the second lock engagement state are released, and the urging force of the urging spring can force the eject lever 21 to move forward, that is, in the disc ejection direction. The disc cartridge 100 in contact with the disc cartridge pressing portion 42 can be forcibly discharged from the insertion port 8A.

(4) Operation and Effect In the above configuration, when the disc cartridge 100 is inserted while the holder 8 is held at the insertion / removal position (first operation), the ejection mechanism 20 first locks the ejection lever 21. 42 A of 1st lock engaging parts in the plate 42 are pushed down back in the form which got on the 1st to-be-locked part 31 of the holder 8 (2nd operation | movement).

  When the disc cartridge 100 is continuously inserted within the movable range of the eject lever 21, the eject mechanism 20 continues to the first lock engagement portion 42 </ b> A in the first lock plate 42 of the eject lever 21 and the first of the holder 8. By engaging with the end surface 31A of the locked portion 31, the state in which the disk cartridge 100 is loaded is maintained to form the first lock engagement state (third operation).

  Thereafter, the eject mechanism 20 moves the ejector lever 21 to the contact portion 52 of the mounting plate 50 in the process in which the holder 8 transitions from the insertion / removal position to the mounting position as the cover body 3 transitions from the open position to the closed position. The second lock plate 43 contacts and the second lock plate 43 is pushed up by the contact portion 52.

  In this case, in the eject mechanism 20, the direction of movement of the holder 8 from the insertion / removal position to the mounting position and the direction in which the second lock plate 43 is pushed up are contradictory, and therefore the first lock plate 42 of the eject lever 21. Is bent and pushed up in the vertical direction (fourth operation).

  The eject mechanism 20 includes a first lock engagement portion 42A of the first lock plate 42 and a first locked portion 31 of the holder 8 when the first lock plate 42 of the eject lever 21 is pushed up in the vertical direction. When the lock engagement state is released, at this moment, the eject lever 21 is in a completely free state that is not restricted by anything, so that the eject lever 21 is slightly pulled back in the disc ejection direction by the biasing force of the biasing spring. (Fifth operation).

  However, since the eject mechanism 20 is provided with the second locked portion 51 of the mounting plate 50 so as to block the ejection direction of the eject lever 21, the second lock engaging portion 43A of the second lock plate 43 of the eject lever 21 is provided. Is brought into contact with the second locked portion 51 of the mounting plate 50 to form the second lock engagement state (sixth operation).

  The eject mechanism 20 writes or reproduces data to / from the disk-shaped recording medium 104 of the disk cartridge 100 in the second lock engagement state, and then the holder 8 is moved from the mounting position to the insertion / removal position by operating the open slider 4. As the holder 8 starts to shift, the engagement state between the second lock plate 43 of the eject lever 21 and the second locked portion 51 of the mounting plate 50 begins to be gradually released in accordance with the transition of the holder 8. When the second lock plate 43 reaches a position exceeding the height of the second locked portion 51, the second lock engagement state is finally completely released (seventh operation).

  On the other hand, in the conventional ejection mechanism 200 (FIGS. 19 to 22), when the holder 202 is rotated in a direction away from the mechanical chassis 201, the engagement projection formed on the projection 206D of the ejection lever 206 is formed. When 206G is engaged with the engaging portion 212A of the unlocking member 212 from below, the engagement state between the locking portion 206F of the eject lever 206 and the locked portion 210 of the holder 202 is released.

  However, in the ejection mechanism 20 according to the present invention, when the second lock engagement state is released, the second lock engagement state is released by the release operation of the engagement state opposite to the hooking operation as in the conventional ejection mechanism 200. Therefore, the disc cartridge 100 can be reliably ejected with simple operation as compared with the conventional eject mechanism 200.

  Further, in the eject mechanism 20 of the present invention, since the flexibility of the first lock plate 42 is used as the structure of the eject lever 21, the first lock engagement state is formed or the first lock engagement state is set. The first lock engagement state can be formed and released with a very simple structure without using a complicated structure for releasing.

  Further, the eject mechanism 20 forms the second lock engagement state at a predetermined position where the eject lever 21 is slightly pulled back in the disc ejection direction by the urging force of the urging spring almost simultaneously with the release of the first lock engagement state. By doing so, it is possible to prevent the return to the first lock engagement state only by a change in the position with respect to the eject lever 21, and as a result, it is possible to prevent the return to the first lock engagement state. Therefore, it is not necessary to provide a complicated mechanism.

  According to the above configuration, the ejection mechanism 20 of the disk device 1 does not require a complicated configuration or high component accuracy like the conventional ejection mechanism 200, and the disk cartridge 100 is removed from the holder 8 during the ejection operation with a simple configuration. It can be discharged reliably.

(5) Other Embodiments In the above-described embodiment, the case where the second locked portion 51 and the contact portion 52 of the mounting plate 50 are formed integrally has been described. However, the present invention is not limited to this, and the second locked portion 51 and the contact portion 52 may be independently formed on the mechanical chassis 10 of the main body case 2.

  Moreover, in the above-mentioned embodiment, although the case where the 2nd to-be-locked part 51 of the attachment plate 50 was formed in predetermined height was described, this invention is not restricted to this, It is made higher than this, or You may make it low. For example, if the second locked portion 51 is raised or lowered, the timing for ejecting the disc cartridge 100 can be changed according to the degree of opening of the cover body 3, and the usability for the user can be further improved.

  Further, in the above-described embodiment, the case where a gap of a predetermined interval is provided between the second locked portion 51 and the abutting portion 52 of the mounting plate 50 is described, but the present invention is not limited to this. The gap may be widened or narrowed. In the ejection mechanism 20 in this case, if this gap widens, the possibility of returning to the first lock engagement state when the second lock engagement state is released is further reduced. The time until the transition to the second lock engagement state after the lock engagement state is released is further shortened.

  In the above-described embodiment, the case where a recording medium such as a mini disk in which a disk-shaped recording medium is housed in a cartridge is used as the disk cartridge 100 as an object of the ejection mechanism 20 in the disk device 1 has been described. The present invention is not limited to this, and other various recording media in which a disc-shaped recording medium such as a Blu-ray disc, a DVD-RAM (Digital Versatile Disc-Random Access Memory), or a flexible disc is stored in a cartridge are targeted. May be.

  Furthermore, in the above-described embodiment, the case where the ejection mechanism 20 of the present invention is configured by the shape and structure as shown in FIGS. 3 and 4 has been described, but the present invention is not limited to this. The eject mechanism 20 may be configured by various other shapes and structures.

  The ejection mechanism and the disk device of the present invention can be applied to an application for reliably executing an ejection operation for inserting or ejecting a disk cartridge in which a disk-shaped recording medium is accommodated in a cartridge, for example.

1 is a schematic perspective view showing an external configuration of a disk device having an ejection mechanism according to the present invention. FIG. 6 is a schematic perspective view showing a state in which a disk cartridge is loaded in the disk device. It is a rough-line perspective view which shows the structure of the eject mechanism (a holder and an eject lever) of this invention. It is a rough-line perspective view which shows the combination state of an ejection mechanism. It is a rough-line perspective view which shows 1st operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows 1st operation | movement (2) of an ejection mechanism. It is a rough-line perspective view which shows 2nd operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows 2nd operation | movement (2) of an ejection mechanism. It is a rough-line perspective view which shows the 3rd operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows the 3rd operation | movement (2) of an ejection mechanism. It is a rough-line perspective view which shows 4th operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows 4th operation | movement (2) of an ejection mechanism. It is a rough-line perspective view which shows 5th operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows 5th operation | movement (2) of an ejection mechanism. It is a rough-line perspective view which shows 6th operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows 6th operation | movement (2) of an ejection mechanism. It is a rough-line perspective view which shows the 7th operation | movement (1) of an ejection mechanism. It is a rough-line side view which shows the 7th operation | movement (2) of an ejection mechanism. It is a rough-line side view which shows the structure (1) of the conventional ejection mechanism. It is a rough-line perspective view which shows the structure (2) of the conventional ejection mechanism. It is a rough side view which shows the state at the time of the disk cartridge loading in the conventional ejection mechanism. It is a rough side view which shows the recording or reproduction | regeneration state in the conventional ejection mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Disk apparatus, 2 ... Main body case, 3 ... Cover body, 4 ... Open slider, 8, 202 ... Holder, 9 ... Lock piece, 10, 201 ... Mechanical chassis, 20, 200 ... Ejecting mechanism 21, 206 ... Ejecting lever, 22 ... Top plate, 25, 26 ... Receiving plate, 29 ... Spring hook, 31 ... First locked part, 32, 33 ... Stopper 34 ... Guide groove 35, 211 ... Tension coil spring 40,206A ... Supported part 46 ... Disk cartridge pressing part 42 ... First lock plate 42A ... First lock engagement , 43... 2nd lock plate, 43 A... 2nd lock engaging portion, 44... Spring-hanging portion, 50. ... Disc cartridge, 101, 102 ... Positioning holes, 103 ...... case body, 104 ...... disc-shaped recording medium, 105 ...... shutter, 106 ...... groove, 210 ...... locking portion.

Claims (8)

An eject mechanism for a disk cartridge containing a disk-shaped recording medium,
A first locked portion having a predetermined shape is integrally formed, an insertion / removal position when the disk cartridge is inserted or ejected, and a mounting position where the disk-shaped recording medium of the disk cartridge is mounted at a predetermined position on the mechanical chassis A holder that rotates movably between
A supported portion that is slidably supported in the insertion direction or the ejection direction of the disk cartridge with respect to the holder, and the holder is held in the insertion / removal position and the disk cartridge is inserted. A first lock engagement portion that holds the disk cartridge in a loaded state by engaging with the first locked portion to form a first lock engagement state, and the holder is moved from the insertion / removal position to the mounting position. The first lock engagement state is released by pushing and bending the supported portion upward from below to bend, and the disc cartridge is held in the mounting position while maintaining the release state. And an eject lever integrally formed with a second lock engagement portion that forms a second lock engagement state,
A biasing spring that is stretched between the holder and the eject lever and biases the eject lever in the discharging direction;
When the second lock engagement state by the second lock engagement portion of the eject lever is released in conjunction with the rotation of the holder from the mounting position to the insertion / removal position, the biasing An ejecting mechanism characterized in that the disk cartridge loaded in the holder is ejected by sliding the supported portion of the eject lever in the ejecting direction using an urging force of a spring. The eject lever releases the first lock engagement state when the holder is rotated from the insertion / removal position to the mounting position, and at the same time, the supported portion is slightly lifted by the biasing force of the biasing spring. The second lock engaging state is formed by engaging the second lock engaging portion with a second locked portion having a predetermined shape provided in the mechanical chassis at a position moved in the discharging direction. The eject mechanism according to claim 1, wherein the first lock engagement state is prevented from being returned again by the operation. The eject lever is disengaged between the second lock engaging portion and the second locked portion in a process in which the holder rotates from the mounting position to the insertion / removal position. The eject mechanism according to claim 1, wherein the disk cartridge loaded in the disk is discharged. The eject lever includes the second lock engaging portion and the second locked portion in a process in which the holder rotates from the mounting position to the insertion / removal position according to the height of the second locked portion. The eject mechanism according to claim 3, wherein a timing at which the engagement with the portion is released is regulated. A disk device equipped with an eject mechanism for a disk cartridge containing a disk-shaped recording medium,
The eject mechanism is
A first locked portion having a predetermined shape is integrally formed, an insertion / removal position when the disk cartridge is inserted or ejected, and a mounting position where the disk-shaped recording medium of the disk cartridge is mounted at a predetermined position on the mechanical chassis A holder that rotates movably between
A supported portion that is slidably supported in the insertion direction or the ejection direction of the disk cartridge with respect to the holder, and the holder is held in the insertion / removal position and the disk cartridge is inserted. A first lock engagement portion that holds the disk cartridge in a loaded state by engaging with the first locked portion to form a first lock engagement state, and the holder is moved from the insertion / removal position to the mounting position. The first lock engagement state is released by pushing and bending the supported portion upward from below to bend, and the disc cartridge is held in the mounting position while maintaining the release state. An eject lever integrally formed with a second lock engagement portion that forms a second lock engagement state,
A biasing spring that is stretched between the holder and the eject lever and biases the eject lever in the discharge direction;
When the second lock engagement state by the second lock engagement portion of the eject lever is released in conjunction with the rotation of the holder from the mounting position to the insertion / removal position, the biasing A disk device characterized in that the disk cartridge loaded in the holder is discharged by sliding the supported portion of the eject lever in the discharge direction using a biasing force of a spring. The eject lever releases the first lock engagement state when the holder is rotated from the insertion / removal position to the mounting position, and at the same time, the supported portion is slightly lifted by the biasing force of the biasing spring. The second lock engaging state is formed by engaging the second lock engaging portion with a second locked portion having a predetermined shape provided in the mechanical chassis at a position moved in the discharging direction. The disk device according to claim 5, wherein the disk device is prevented from returning to the first lock engagement state again by the operation. The eject lever is disengaged between the second lock engaging portion and the second locked portion in a process in which the holder rotates from the mounting position to the insertion / removal position. The disk device according to claim 5, wherein the disk cartridge loaded in the disk is discharged. The eject lever includes the second lock engaging portion and the second locked portion in a process in which the holder rotates from the mounting position to the insertion / removal position according to the height of the second locked portion. The disk device according to claim 7, wherein a timing at which the engagement with the portion is released is regulated.

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