WO2004032137A1 - ディスクカートリッジ - Google Patents
ディスクカートリッジ Download PDFInfo
- Publication number
- WO2004032137A1 WO2004032137A1 PCT/JP2003/012622 JP0312622W WO2004032137A1 WO 2004032137 A1 WO2004032137 A1 WO 2004032137A1 JP 0312622 W JP0312622 W JP 0312622W WO 2004032137 A1 WO2004032137 A1 WO 2004032137A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- shutter
- opening
- cartridge
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/03—Containers for flat record carriers
- G11B23/0301—Details
- G11B23/0308—Shutters
Definitions
- the present invention relates to a disc cartridge, and more particularly to a disc cartridge for storing a disc, which is an information recording medium for recording information, in a main body of a cartridge.
- Disks for example, magnetic disks and optical disks, are known as information recording media for recording information.
- the disc is used as an audio disc or a video disc. Disks are also used as information storage media for computer data storage devices.
- an optical disk apparatus is widely used as a disk drive for driving an optical disk.
- the information recordable disc is housed in the force-trridge body to prevent dust and fingerprints from adhering to the disc.
- a disk cartridge for storing a disk in the cartridge body is described, for example, in Japanese Patent Nos. 3030894 and 3 178047.
- Patent No. 3030894 (In particular, Paragraph Nos. 0020 to 0024, and 0034, The disk cartridges described in FIGS. 1 and 5) and in Patent No. 3 1 7 8 0 4 7 (in particular, paragraph numbers 0 0 3 0 to 0 0 3 4 and FIGS. 1, 2 and 4) It is used for MD (mini disk).
- the disk is housed in the cartridge body, and the cartridge body is provided with an opening that exposes part of the disk.
- the disk drive cartridge has a shutter which can be moved so as to open or close the opening, and the shirt cartridge is moved in the same direction as the disk cartridge is inserted into the disk drive (specifically, Open or close the opening by sliding it.
- the shutter has a substantially U-shaped cross section, and the bottom surface of the shutter is provided with a retaining projection.
- the shutter sandwiches the cartridge main body, and engages the retaining projection of the shutter with the guide groove formed on the bottom surface of the cartridge main body, whereby the shutter slides in the direction to insert the disc cartridge into the disc drive.
- a guide groove is provided on the outer peripheral side of the opening.
- the disk drive ridge is provided with a lock member that locks the shutter in a state in which the shutter closes the opening.
- the locking member is provided on the tip side in the direction of inserting the disk cartridge into the disk drive rather than the opening.
- the disk drive is provided with a cartridge holder on which the disk cartridge is mounted, and the inside surface of the cartridge holder is provided with a fixed claw.
- the overturning claw passes through the groove provided on the side surface of the disc and pushes the lock member to unlock the shutter, and then the shutter moves backward. Move to open the opening Ru.
- the overlying nail can not close the shirt pack. Therefore, when the disc cartridge is taken out of the disc drive, it is necessary to provide a disc panel for closing the shutter in the disc drive.
- the leaf spring engages with the hole provided on the side surface of the shirt and slides while holding the shutter, thereby closing the opening.
- the four corners of the bottom of the cartridge body near the corner function as a reference surface.
- a mechanical chassis is provided at a position corresponding to the reference surface of the cartridge body, and the mounting surface is provided on the mechanical chassis and the disc cartridge is held down from above. Position the disc cartridge relative to the drive.
- the disk cartridges described in the above-mentioned Patent Nos. 3 0 0 8 0 8 4 and 3 1 7 0 0 7 7 have the following problems.
- the resistance of the plate panel which functions to close the opening part to the shutter is felt, and the feeling of operation is not good.
- the panel panel weakens the holding power of the shutter to reduce its resistance, it may not be possible to securely close the shirt.
- the square corner portion of the force-trridge main body Will lose design freedom such as providing a large curvature.
- the area available for the locking mechanism is relatively reduced, and the space for the locking mechanism itself can not be secured.
- a guide groove for guiding the moving direction of the tray is provided on the bottom surface of the cartridge main body, and at least one of the retaining projections provided on the shutter engages with the guide groove. Since not only the guide groove but also the opening is provided on the bottom surface of the cartridge body, the shiver will move around the opening. Therefore, the periphery of the opening needs to be flat. Also, the outer periphery of the opening needs a sufficient space to avoid interference with the lens drive of the recording / reproducing head inserted into the opening. However, a guide groove is provided outside the opening. Because of the formation, the width of the cartridge body is increased.
- the guide groove is disposed further inside, it will communicate with the opening. In this case, even when the shutter closes the opening, a path for dust to enter through the guide groove is formed.
- An object of the present invention is to solve the above-mentioned problems, and to provide a disc cartridge which can be made compact by increasing dust resistance while reducing cost with a simple structure. Disclosure of the invention
- the disk cartridge according to the present invention is a force-trridge main body having a disk storage portion for rotatably storing a disk, wherein the force-trridge main body is provided with an opening for exposing a part of the disk.
- a shutter return member movable so as to open or close the opening; a shutter return panel for urging the shutter opening member not to open the opening;
- the lock unit may be locked using the shutter return panel.
- the cartridge body may include a first case and a second case, and the disc storage unit may be formed by integrally combining the first case and the second case.
- the cartridge body includes a first case and a second case, and a disc storage portion is formed by integrally combining the first case and the second case, and the positioning hole is formed by: It may be provided so as not to penetrate the first case and the second case.
- the shuttering member includes a panel engaging portion engaged with the shutter return panel, and in the closed state in which the shutter member closes the opening, the shirting member and the shutter return panel are the shirts.
- the sliding member may slide in the panel engaging portion substantially at right angles with the moving direction.
- the cartridge main body may be provided with a lock recess in which the panel is engaged substantially at a right angle with the direction in which the shutter member moves in a closed state in which the shutter member closes the opening. Good.
- a concave guide groove portion opened to the outside of the cartridge main body is provided on a side surface of the cartridge main body engaged with the shutter member, and one end of the shutter return panel is along the guide groove portion. You may move.
- An inclined surface for moving the one end of the shutter return panel to the locking recess may be provided on the surface of the panel engaging portion in contact with the one end of the shutter return panel.
- the first case is provided with an upper engaging groove for guiding the movement of the shutter member and holding the shutter member
- the second case is provided with the movement of the shutter member.
- a lower engagement groove may be provided to guide and hold the shutter member.
- the shutter member may be provided with an upper engagement protrusion that engages with the upper engagement groove, and a lower engagement protrusion that engages with the lower engagement groove.
- the lower engagement groove may be spaced apart from the opening by a predetermined distance.
- a connecting portion for connecting the outer peripheral portion of the opening is provided in the second case, and the connecting portion is a surface of the disk when the disk drive device for driving the disk drives the disk.
- the lower surface of substantially the same surface, and the upper surface extending from the opening to the end of the force-triple main body in the direction to close the shutter member at the same surface as the surface at the opening.
- a notch may be provided on a side surface of the first case, and a groove may be formed by the notch of the first case and the upper surface of the connecting portion.
- the second case is provided with an open range restricting portion for restricting the open range of the first member, and the second case on which the second case is mounted by the disk drive for driving the disk.
- the opening range regulation portion is provided via the opening portion.
- a holding portion having a flat surface recessed from the main surface may be provided in the vicinity of a corner portion where the opposing shutter member is engaged.
- the disk power tritch may further include a hook release unit that unlocks the hook member.
- the lock release unit may be in contact with the shutter return panel.
- the lock release unit may include: a pressing unit pressed by a disk drive for driving the disk, and the lock release unit may be movable in a direction in which the shutter member opens or closes.
- the lock release unit is brought into a lock release state by pressing the pressing unit in a state where the shutter unit is closed and locked, and then the lock unit is integrally opened with the shirt unit.
- FIG. 1 is an exploded perspective view of a disk drive according to a first embodiment of the present invention.
- FIG. 2 is a perspective view centering on the inner surface of the upper half in the first embodiment.
- FIG. 3 is a perspective view mainly showing the outer surface of the lower half in the first embodiment.
- FIG. 4 is a perspective view of the shutter in the first embodiment.
- FIG. 5 is a plan view of relevant parts showing the inner surface of the lower half in the first embodiment.
- FIG. 6 is a plan view showing the inner surface of the lower half in the first embodiment.
- FIG. 7 is a cross-sectional view of an essential part of the disc cartridge in the first embodiment.
- FIG. 8 is another principal part cross-sectional view of the disc cartridge in the first embodiment.
- FIG. 9 is a perspective view mainly showing the outer surface of the upper half of the disk cartridge with the shutter closing the opening in the first embodiment.
- FIG. 10 is a circuit diagram of the first embodiment, in which the shutter of the shutter is closing the opening. It is the perspective view shown centering on the outer surface of the lower half of the skart cartridge.
- FIG. 11 is a perspective view mainly showing the outer surface of the upper half of the disk cartridge in a state in which the shutter is opened in the first embodiment.
- FIG. 12 is a perspective view mainly showing the outer surface of the lower half of the disk force ridge in the state in which the opening is opened in the first embodiment.
- FIG. 13 is a perspective view of an essential part of a holder for mounting the disc cartridge in the first embodiment.
- FIG. 14 is a plan view of relevant parts for explaining the unlocking operation in the first embodiment.
- FIG. 15 is a plan view of relevant parts for explaining the unlocking operation in the first embodiment.
- FIG. 16 is a plan view of relevant parts for explaining the unlocking operation in the first embodiment.
- FIG. 17 is a plan view of relevant parts for explaining the unlocking operation in the first embodiment.
- FIG. 18 is a plan view of relevant parts for explaining the unlocking operation in the first embodiment.
- FIG. 19 is a partial cross-sectional view of a main portion for explaining a state in which the disc cartridge is mounted in the first embodiment.
- FIG. 20 is an exploded perspective view of a disk cartridge according to a second embodiment of the present invention.
- FIG. 21 is a perspective view mainly showing the outer surface of the upper half of the disk cartridge in the state where the opening in the second embodiment of the present invention is closed.
- FIG. 22 is a perspective view showing the outer surface of the lower half of the disk cartridge with the shutter closing the opening in Embodiment 2 as a center.
- FIG. 23 is a perspective view of the shutter in the second embodiment.
- FIG. 24 is a main portion perspective view for describing the configuration in the vicinity of the shutter in the second embodiment.
- FIG. 25 is a perspective view mainly showing the inner surface of the lower half in the second embodiment.
- FIG. 26 is a main part plane for explaining the operation of opening the opening in the second embodiment.
- FIG. 27 is a plan view of relevant parts illustrating the operation of opening the opening portion of the shirt according to the second embodiment.
- FIG. 28 is a plan view of relevant parts illustrating the operation of opening the opening portion of the shirt according to the second embodiment.
- FIG. 29 is a plan view of relevant parts for explaining the operation of opening the opening in the second embodiment.
- FIG. 1 is an exploded perspective view showing a disk force wedge 1 according to a first embodiment of the present invention.
- the disk cartridge 1 has a disk storage 21 for rotatably storing the disk 2, and a cartridge main body 1A provided with an opening 4a for exposing a part of the disk 2, and the opening 4a is opened.
- a shutter 5 movable so as to be closed, a shutter return panel 6 for urging the shutter 5 not to open the opening 4a, and a lock 8 for locking the shutter 5 (FIG. 5) And (see below).
- the disk drive insert the disk cartridge 1 in the Y direction shown in FIG. 1 and attach the disk drive 1 to the disk drive.
- the disk drive records information on the disk 2 or records the information recorded on the disk 2 Play from 2).
- the cartridge main body 1 A includes an upper half 3 functioning as an upper case and a lower half 4 functioning as a lower case, and the disk storage portion 2 is formed by combining the upper half 3 and the lower half 4 integrally. 1 is formed.
- FIG. 1 the outer surface of the upper half 3 and the inner surface of the lower half 4 are illustrated.
- a lower shirt 4 is fitted with a shirt Yui 5.
- the shutter 5 is moved (slidingly) in the Y direction and the -Y direction parallel to the direction in which the disk cartridge 1 is inserted into the disk drive (not shown). Open or close the
- the position at which the shirt evening sun 5 opens the opening 4 a is referred to as the opening position or simply the opening position of the shutter 5
- the position at which the shirt evening sun 5 blocks the opening 4 a is the shutter opening 1 5 It is called the closed position or simply the closed position.
- Both the upper half 3 and the lower half 4 have a curved shape with a large curvature (R) at the tip to be inserted into a disk drive (not shown).
- the first return spring 6 is a torsion coil spring whose both ends are bent in a direction parallel to the thickness direction of the disc 2 and in the same direction.
- the shutter return spring 6 is provided in the vicinity of the position where the shutter 5 opens the opening 4 a, and the shutter return plate 6 is in the direction in which the shutter 5 closes the opening 4 a (ie, Energize the shutter 5 to move in the direction of Y).
- the tip of the shirt shirt 5 is held by the shutter one press 7 so as not to float.
- a switch 8 is provided in the lower interface 4 and by switching the switch 8, it is possible to select whether or not the disc 2 is in a recordable state.
- FIG. 2 is a perspective view mainly showing the inner surface of the upper half 3.
- the upper half which faces one side of the inner surface of the lower half 4 to which the shutter 5 is attached
- the buttocks extending outward from the disk storage unit boundary wall 3c of the upper half 3 Is provided.
- a side surface notch 3 a is provided in a corner near the closed position of the shutter 5 in a form in which a part of the surface facing the lower half 4 is cut out.
- a side surface groove is formed on the side surface of the disc cartridge 1 by the side surface notch 3 a and the projection of the lower half 4.
- an upper engaging groove portion 3b is provided in the ridge portion along one side of the upper half 3 opposite to one side of the inner surface of the lower half 4 to which the shutter 5 is attached.
- FIG. 3 is a perspective view mainly showing the outer surface of the lower half 4.
- the connecting portion 4 b connecting the outermost periphery of the opening 4 a has substantially the same width as the opening 4 a, is thinner than the thickest portion of the lower half 4, and the lower half 4 It has a thickness in the form of a notch in the outer surface.
- a lower engagement groove 4c is provided at the edge of the outer surface of the lower half 4 close to the side on which the shutter 5 moves.
- the lower engagement groove 4c is separated from the opening 4a by a predetermined distance so as not to communicate with the opening 4a.
- the lower half 4 is provided with an open range restricting portion 41 for restricting the open range of the shirt case 5 when the opening 4 a is opened.
- a holding unit 4d is provided for the disk drive to hold the force ridge 1.
- positioning holes 4 e are provided in the vicinity of the end edge in the direction in which the disk cartridge 1 is inserted into the disk drive (not shown) (that is, in the vicinity of the open range restricting portion 41). The positioning hole 4e is used to define the position of the disc cartridge 1 relative to the disc drive when the disc cartridge 1 is mounted in the disc drive.
- the corner of the leading edge is provided with a corner recess 4f cut in the front edge and the side.
- the corner recess 4 f is provided at a corner on the outer peripheral side of the lower half 4 from the holding portion 4 d of the lower half 4 and is used as a reference plane in the height direction when the force wedge 1 is mounted on the disk drive. Ru.
- the holding portion 4 has a flat surface recessed from the main surface of the lower cavity 4 of the disc cartridge 1.
- FIG. 4 is a perspective view showing the structure of the shutter 5.
- the shutter 5 includes a flat plate portion 5 f that closes the opening 4 a at the closed position of the shutter 5 and a U-shaped portion 5 g that is bent in a substantially U shape from one end of the flat plate portion 5.
- the shutter 5 is assembled so as to sandwich the lower half 4 (details will be described later).
- An upper engaging protrusion 5a is provided at one end of the upper surface of the U-shaped portion 5g, and a lower engaging protrusion 5b is provided on the upper surface of the flat plate portion 5f.
- the upper engaging protrusion 5 a is provided to have a diagonal positional relationship with the lower engaging protrusion 5 b.
- the panel engaging portion 5c is formed on the upper side of the lower engaging protrusion 5b at a position lower than the upper side surface of the U-shaped portion 5g, and the upper side surface of the U-shaped portion 5g and the spring engaging portion 5c.
- a notch 5d is formed on the upper side of the.
- the shutter return spring 6 abuts on the spring contact surface 5 h of the spring engaging portion 5 c.
- FIG. 5 is a plan view of relevant parts showing the inner surface of the lower half 4.
- the lock recess 4g and the spring sliding surface 4h are located on the back side of the lower engagement groove 4c provided on the outer surface of the lower half 4.
- a raised portion 4 p is provided, and a spring guide rib 4 i is provided in parallel with the panel drive surface 4 h.
- the shutter 5 is assembled by inserting the lower engagement protrusion 5b into the lower engagement groove 4c at the position of the slope 4k.
- One end of the shutter return spring 6 is supported by the panel support 4 j so as to be positioned on the spring guide rib 4 i, and the other end thereof is in contact with the panel contact surface 5 h of the spring engaging portion 5 c of the shutter 5. In contact with
- the tip 6a present in the range of the lock recess 4g and the tip 6b engaged with the spring support 4j are the same in the thickness direction of the upper half 3 and the lower half 4 It is bent perpendicular to the direction.
- the lock portion 8 locks the shutter 5 by the front ridge portion 6 a of the shirt return plate 6 and the lock recess 4 g.
- the positioning hole 4 e disposed near a part of the corner of the surface (that is, the bottom surface of the cartridge body 1 A) mounted on the disk drive (not shown) in which the disk cartridge 1 is mounted is a spring Positioned immediately next to the support 4 j, the positioning hole 4 e has a depth sufficient to insert the positioning pin of the disk drive, and its top surface is blocked. Positioning holes in the same plane as the spring guide rib 4 i
- the spring guide rib 4i and the inner surface of the upper half 3 form a predetermined gap, and the shutter return panel 6 moves between the gaps.
- the positioning hole 4 e is provided so as not to penetrate the upper half 3 and the lower half 4, the gap may be in communication with the positioning hole 4 e.
- FIG. 6 is a plan view showing the inner surface of the lower shaft 4
- FIG. 6 shows a state in which the lower shirt 4 and the first shirt 5 are combined with the lower shirt 6.
- the shutter 5 is biased in the ⁇ Y direction by the shutter return panel 6 to close the opening 4 a.
- the panel engaging portion 5 c is provided so that the tip portion 6 a of the shutter return panel 6 has a predetermined width so as to be slidable in the X-axis direction.
- 5 h is formed to be inclined toward the outside of the cartridge.
- Tip portion 6 a in contact with the panel contact surface 5 h of 6 is a reaction force which tries to spread by itself-X direction Since it moves to the lower half 4 and enters the lock recess 4g formed in the lower half 4, it is in a position where it can not move in the Y direction, and the shutter 5 is locked at the position closing the opening 4a.
- the shutter 5 is locked by the engagement of the tip 6 a of the shirt return panel 6 with the lock recess 4 g.
- the length of the tip 6a is longer than the thickness of the raised part 4p, so it is exposed on the side of the cartridge body 1A, and it is pressed from the side and the tip 6a By moving the disc 2 to the exit position, the tip 6 a can move along the panel sliding surface 4 h. As a result, it becomes possible to open the opening 4 a by sliding the shirt 5 against the opening direction (Y direction).
- the shutter 5 can be locked using the shirt return panel 6 without providing a new shirt lock mechanism. It is also possible to cut the distal end side of the disk force lock which has been newly provided with a shirt evening lock mechanism into a curved shape by cutting it out as in this embodiment.
- FIG. 7 is a cross-sectional view of an essential part of the disc cartridge 1.
- FIG. 7 shows the state in which the upper engagement protrusion 5 a is guided.
- the disk 2 stored in the disk storage unit 21 is chucked to the spindle of a disk drive (not shown) and is lifted to a height approximately at the center of the thickness of the disk cartridge 1. .
- the shutter 5 is sandwiched between the upper half 3 and the connecting portion 4 b of the lower half 4 in the side notch 3 a of the upper half 3, and the upper engagement projection 5 a is formed by the upper engagement groove 3 b Have been taken into account. Therefore, the shutter 5 is constrained in both the X-axis direction and the Z-axis direction, and is guided so as to be movable in the Y direction or one Y direction along the Y axis perpendicular to the paper surface.
- the upper engagement projection 5 a passes through the position of the opening 4 a when the lock of the shirt 5 is released, but the upper engagement projection 5 a is in the middle of the thickness of the upper half 3.
- the lower surface of the connection portion 4 b can be made approximately the same height as the lower surface of the disk 2 because A large space can be provided on the outer peripheral portion of the opening 4 a without significantly increasing the thickness of the disk cartridge 1.
- the lens driving unit 11 for driving the lens 12 of the recording / reproducing head 10 is inserted into the opening 4a, and the lens driving unit 11 interferes with the disk cartridge 1 even when the disc 2 is at the outermost position. Sufficient space is secured without
- the shutter 5 is mounted on the upper shirt 3 It is not exposed on the outer surface of Therefore, it is possible to prevent the engagement between the upper engagement projection 5a and the upper engagement groove 3b from being disengaged, and the function of the shutter 5 for closing the opening 4a is not impaired.
- the disc 2 stored in the disc cartridge 1 can be protected from contamination such as scratches, fingerprints or dust. Also, it does not damage the apparent design of the outer surface of the disk drive 1.
- FIG. 8 is another cross-sectional view of the disk drive 1. In FIG. 8, the lower engagement projection 5b is shown being guided.
- the lower engaging protrusion 5 b of the shirt tub 5 is guided by the lower engaging groove 4 c, and the lower half is formed by the lower engaging protrusion 5 b and the spring engaging portion 5 c.
- the shutter 5 is constrained in the X-axis direction and the Z-axis direction with 4 sandwiched.
- the lower engaging projection 5b does not pass through the position of the opening 4a, so it can be guided by the lower half 4 as shown in the figure.
- FIG. 9 is a perspective view showing the outer surface of the upper half 3 of the disc cartridge 1 with the shutter 5 closing the opening 4a
- Fig. 10 shows the shutter 5 having an opening 4a
- FIG. 7 is a perspective view showing the outer surface of the lower half 4 of the closed state disk force and wedge 1 in the center.
- FIG. 11 is a perspective view showing the outer surface of the upper half 3 of the disc cartridge 1 with the shutter 5 opening the opening 4 a.
- FIG. 12 shows the shutter 5 opening the opening 4 a The outer surface of the lower half 4 of the disc cartridge 1 in the damaged state It is the perspective view shown to.
- the shirt sleeve 5 is exposed without being covered by the raised portion 4 p from the notch 5 d of the shutter 5. It is possible to make contact with the tip 6 a of the first return panel 6. Also, in the closed position of the shutter 5, the opening 4a is completely shielded, and the lower engagement groove 4c is not in communication with the opening 4a either, so there is no dust intrusion path and the dust resistance is extremely high. It is a structure.
- FIGS. 13 to 18 the main configuration of holder 20 for mounting disc cartridge 1 in the first embodiment is shown.
- FIG. 13 is a perspective view of an essential part of a holder for mounting the disc cartridge in the first embodiment.
- the disc cartridge 1 is inserted into a holder 20 disposed on the top of a mechanical chassis (not shown) in which a spindle and a recording / reproducing head are incorporated.
- a rotation shaft 21a for rotating the mouth release lever 21 by a predetermined angle and the disk cartridge 1 are held.
- a holding spring 22 and an urging spring 23 for lightly urging the lock release lever 21 in the outward direction of the holder 20 are provided.
- the bias spring 23 is a leaf spring.
- the holding panel 22 is arranged to engage with the holding portion 4 d of the disc cartridge 1 when the disc cartridge 1 is inserted to the back of the holder 20.
- the unlocking lever 21 is disposed at the far end of the disc cartridge 1 in the insertion direction, and is in contact with the side of the disc cartridge 1 with a cartridge contact portion 21b; A lock release section 21 c disposed at the side end and pressing the shirt spring 1 is provided. By rotating the unlocking lever 21, either the force contact portion 2 1 or the unlocking portion 2 1 c is arranged to enter the inside of the holder 20.
- the urging panel 23 urges the release lever 21 so that the hook release portion 21 c retracts to the outside of the holder 20. Also, on the inner side surface of the holder 20, an overturned claw 20a is provided at the height of the side notch 3a formed on the side surface of the disk cartridge 1.
- FIGS. 14 to 18 are plan views of essential parts showing the unlocking operation of the disk cartridge 1. Figures 14 to 18 are illustrated with the upper half 3 removed to facilitate understanding of the internal operation.
- the lock unit 8 locks the shutter 5 using the shutter return spring 6 so that the shirt evening unit 5 does not open the opening 4 a.
- the disc cartridge 1 is inserted to the back of the holder 20, and the holding panel 22 holds the disc 1 by the holding portion 4d, and the insertion is completed.
- the shirt sleeve 5 is in the completely open position, and the recording / reproducing head and the spindle can be inserted into the opening 4 a and can be recorded on the disk 2 or reproduced from the disk 2.
- the shutter return panel 6 is configured to move to the upper part of the positioning hole 4 e, even if the positioning hole 4 e is disposed within the movement range of the shutter return spring 6, it is sufficient.
- the shutter return panel 6 of any size can be used, and the pressing force on the shutter 5 can be freely adjusted.
- the holder 20 When the disc cartridge 1 is taken out of the holder 20, an eject mechanism is further provided, and if the holding by the holding spring 22 is released, the disc cartridge 1 is pushed out by the reaction force of the shirt return panel 6. Thus, the holder 20 functions as a shirt evening one unlocking device.
- FIG. 19 is a schematic view showing a state in which the disk cartridge 1 is mounted to the disk drive 35.
- the disk cartridge 1 is installed on the mechanism chassis 30 of the disk drive 35, and the installation surface 30 a of the mechanism chassis 30 is a main surface of the lower cavity 4 of the disk cartridge 1 (generally, The positioning of the disk cartridge 1 in the height direction is performed by supporting the positioning hole 4e (near the surface) as a reference surface.
- the pair of mounting surfaces 30a is provided in the vicinity of the side surface of the disc cartridge 1 in the moving direction in which the shirt sleeve 5 opens the opening 4a, the disc force of the disc cartridge 1 on one side only It is to define one tritch 1 It is not preferable. Therefore, it is necessary to provide an installation surface corresponding to the reference surface over the movement range of the recording / reproducing head 10 of the disk drive 35.
- the ridge 1 corresponds to the reference surface in the vicinity of the R-shaped protrusion. If the mounting surface is made to project from the mechanical chassis 30 to the cartridge 1, the recording / reproducing head 10 abuts against the projection of the reference surface, which causes a problem that it is difficult to miniaturize the disc cartridge 1. Therefore, it is extremely difficult on the space in the force-trridge 1 that projects in an R-shape to use as a reference surface a portion facing the installation surface 3 0 a through the opening 4 a.
- the installation surface 31 corresponding to the corner recessed portion 4 f can be disposed at a higher position.
- the gap between the disk 10 and the disk 1 can be minimized, and the disk drive can be thinned, and the disk 2 can be made by supporting the corner recess 4 f with the mounting surface 31 a.
- the disk drive 35 for driving can be reliably installed, and the recording / reproducing operation accuracy of the disk 2 can be guaranteed.
- the installation surface 31 is formed from either the front end or the side of the disc cartridge 1. You may
- corner recesses 4 f are provided.
- the vicinity of the side surface engaged with the flat plate portion 5 of the shutter 5 is generally Since there is ample space, corner recess 4 f may be provided in this part.
- the disk cartridge has an R-shaped protrusion.
- the disk cartridge of the present invention can be applied even when the disk cartridge has a rectangular shape.
- the disk cartridge having the opening on only one side has been described by way of example. However, even if the disk has only one opening on both sides, it engages with the side surface of the cartridge body.
- the present invention can be applied as long as the shutters are provided on both sides via the engaging protrusion, the lower engaging protrusion, and the like.
- a plate panel is used as the biasing panel, but for example, a space between the cartridge contact portion and the mechanical chassis may be biased by a spiral panel or the like.
- the biasing means can be set as appropriate.
- FIG. 20 is an exploded perspective view showing a disc cartridge 1 according to a second embodiment of the present invention.
- the disk force cartridge 101 has substantially the same structure as the disk cartridge 1 described in Embodiment 1 with reference to FIG. 1 except that the disk force cartridge 101 further includes an unlocking member 1 0 9. There is. Therefore, for the purpose of simplifying the description, the description of the same configuration as that of the disk power first track 1 described in Embodiment 1 with reference to FIG. 1 will be omitted.
- the components corresponding to the disk force ridge 1 are the same as the components of the disk force cartridge 1 described in the first embodiment.
- the reference numerals of the components corresponding to the disk cartridge 1 are the reference numerals of the components of the disk cartridge 1 described in the first embodiment and the last two digits. Note that the numbers are the same.
- FIG. 21 is a perspective view mainly showing the outer surface of the upper half 1 0 3 of the disc cartridge 1 0 1 in a state where the shirt 1 105 has closed the opening 1 0 4 a.
- FIG. 10 is a perspective view mainly showing the outer surface of the lower half 104 of the ridge 101.
- the unlocking member 1 0 9 conceals the tip portion 1 0 6 a of the shutter return spring 1 0 6 exposed without being covered by p. Therefore, the gap from the outside of the main body 101A to the disk 2 is basically only wide enough to allow the plate thickness of the U-shaped upper surface portion 105g to pass.
- the opening 104a is completely shielded, and the lower engagement groove 104c is not in communication with the opening 104a, so that dust can enter. There is no route, and it is extremely dustproof.
- FIG. 23 is a perspective view showing the structure of the shutter 105.
- a U-shaped side wall portion bent in a substantially U shape by bending a metal plate or the like A 105 i and a U-shaped upper surface portion 105 g are provided and assembled so as to sandwich the lower half 104.
- An upper engaging protrusion 1 0 5 a is provided at one end of the upper surface of the U-shaped upper surface portion 1 0 5 g, and a lower engaging protrusion 1 0 5 b is provided on the upper surface of the flat plate portion 1 0 5 It is provided.
- the upper engagement projection 1 0 5 a is provided to have a diagonal positional relationship with the upper engagement projection 1 0 5 a.
- the panel engaging portion 1 0 5 c is formed at the upper side of the lower engaging protrusion 1 0 5 b at a position lower than the upper surface of the U-shaped upper surface portion 1 0 5 g.
- a notch 105 d is formed on the upper surface of g and the upper side of the panel engaging portion 105 c.
- the side end surface of the upper engaging projection 1 0 5 a of the U-shaped upper surface portion 1 0 5 g is a releasing member abutting surface 1 0 5 e.
- end face 1 0 5 j opposite to the shutter return spring 1 0 6 with respect to the U-shaped upper surface portion 1 0 5 g of the release member abutting surface 1 0 5 e is the tip of the shirt return spring 1 0 6 Engage with part 106a.
- FIG. 24 is a main portion perspective view for describing the configuration in the vicinity of the shutter in the second embodiment.
- the unlocking member 1 0 9 is, for example, an over-the-bundle contact portion 1 0 9 a that abuts on a shirt-edged over-the-ban claw 1 2 0 a provided on a disk drive (not shown); A contact portion 1 0 9 b engaged with the tip portion 1 0 6 a of 6 and a connecting portion 1 0 9 c connecting the one beech abutment portion 1 0 9 a and the contact portion 1 0 9 b .
- the connecting portion 1 0 9 c is slidably assembled in a space formed by the U-shaped side wall portion 1 0 5 i, the U-shaped upper surface portion 1 0 5 g and the panel engaging portion 1 0 5 c.
- the thickness of the connecting portion 1 0 9 c in the Z direction is smaller than that of the awning portion 1 0 9 a and the contact portion 1 0 9 b so that the thickness of the disk 1 in the Z direction can be reduced. It is possible to prevent the dust from entering the inside of the cartridge main body 101A and contaminating the disc 102. Also, it is possible to control the sliding movement distance of the hook release member 1 0 9 in the Y direction.
- the engagement surface of the contact portion 1 0 9 b that engages with the front end portion 1 0 6 a of the first return panel 1 0 6 6 has an inclination opposite to that of the spring engagement portion 1 0 5 c. Is formed.
- FIG. 25 is a main part perspective view showing the inner surface of the lower half 1 0 4 of the disk force 1 wedge 1 in a state where the shutter 1 0 5 according to the second embodiment closes the opening 1 0 4 a. It is.
- the lock portion 1 0 8 locks the shutter 1 0 5 using the shutter return spring 1 0 6 so that the shutter 1 0 5 does not open the opening 1 0 4 a There is.
- FIG. 25 shows the arrangement of the lower half 104, the shirt evening 105, the shutter return spring 106, and the unlocking member 100 respectively.
- the unlocking member 1 0 9 is formed by the U-shaped upper surface portion 1 0 5 g, the U-shaped side wall portion 1 0 5 i, and the panel engaging portion 1 0 5 c.
- the shutter is disposed along a space, and the lower engaging protrusion 1 0 5 b provided on the shutter 1 0 5 is guided by the lower engaging groove 1 0 4 c provided on the lower half 1 0 4 while being set.
- the front end portion 1 0 6 a of the shirt flat 1 return spring 1 0 6 is a shutter engaging portion 1 0 5 c and a raised portion 1 0 Since the front end portion 106 a prevents movement in the opening direction because it is interposed between 4 p and p, the shutter 105 is opened by an unnecessary external force or the like, and the disc 102 is scratched. It is possible to completely suppress the adhesion of foreign substances such as dust and / or fingerprints of human hands.
- FIGS. 26 to 29 for example, the process of mounting the disk cartridge 101 of the second embodiment on a tray and mounting the disk cartridge 101 on the holder 120 of the disk drive is shown in the upper half 1
- FIG. 10 is a fragmentary plan view with parts removed and the disk 102 removed. Referring to FIG. 26 which shows the state immediately before the start of the insertion of the disk force 1 cartridge 1 1, referring to FIG. 2 9 which shows the state where the shutter 1 0 5 has opened the opening portion 1 0 4 a explain.
- the overture abutment portion 1 0 9 a abuts on the release member abutment surface 1 0 5 e. Since the contact surface of the contact portion 1 0 9 b is inclined toward the disc 1 0 2, when the lock release member 1 0 9 is pushed out by the distance S, the contact surface becomes the tip portion 1 0 6 a is pressed in the direction of the disk 1 0 2 (that is, in the X direction), the tip 1 0 6 a moves along the panel contact surface 1 0 5 h, and the lock on the shirt 4 1 0 5 is released Be done.
- the length of the distance S is the slope of the contact surface.
- the angle is correlated with the angle, and can be set to the optimum value as appropriate.
- the lock of the shutter 1 0 5 is released by the presence of the tip 1 0 6 a.
- the flat plate portion 1 0 5 f of the shutter 1 0 5 c The opening 1 0 4 a that was being opened is opened.
- the area of the awner contact portion 1 0 9 a is greater than the area of the release member contact surface 1 0 5 e. Because it is large, the unlocking member 1 0 9 moves integrally with the shirt ⁇ 1 0 5.
- the shutter return spring 106 moves to the disc 102 (ie, in the X direction) by deformation, but the gap between the disc holding portion 104d and the side wall of the lower half 104 is properly set. By setting, movement due to deformation can be absorbed, and the movement of the shirt 1005 to open the opening portion 104a can be not affected.
- the contact portion 1009 is the rear side wall in the insertion direction of the lower half 104 (hereinafter referred to as the rear side wall)
- the opening operation of the shirt 1055 is completed by the contact with the opening and the opening 104a is completely opened.
- the holder 120 functions as a shutter unlocking device.
- the configuration has been described in which the front end portion 1 0 6 a of the shutter 1 return spring 1 0 6 is moved to the inside of the disk cartridge 1 0 1 to release the lock. a may be moved outward to release the lock, and the configuration of the panel and the shape of the tip of the unlocking member may be designed as appropriate.
- shutter return spring 106 uses a torsion coil spring, another elastic body may be used.
- the configuration of the disk drive can be extremely simplified, and the cost of the disk drive can be reduced.
- the shutter 1 0 5 opens the opening 1 0 4 a
- the shutter 1 If the shutter 1 0 5 releases the lock and then the shutter 1 0 5 opens the opening 1 0 4 a and the shutter 1 0 5 closes the opening 1 0 4 a, the opening 1 0 4 Reliability of locking and unlocking the shutter 105 can also be improved in order to securely lock the shirt evening after closing a.
- the disk power of the present invention can reliably prevent the opening 1 0 4 a from being unnecessarily opened by an external force.
- the case of opening the opening 104 a has a remarkable effect that the operation of opening the opening 104 a can be surely achieved with an extremely simple apparatus configuration. Furthermore, since the unlocking member 1 0 9 can be absorbed in the range of a gap through which, for example, an overturned claw 1 2 0a formed on the side surface of the disc cartridge 1 1 0 can pass, the disc cartridge 1 1 1 1 The thickness of the disc and the area of the disc 102 in the surface direction of the disc 102 are not increased. Industrial applicability
- the shirt spring return spring realizes multiple functions such as closing the opening and locking the shirt spring member, it is possible to perform the same function separately using dedicated parts.
- the size of the force ridge can be reduced.
- the degree of freedom in external design is increased, and a novel shape having a large curvature on the tip side is provided. It is possible to arrange the components of the disk drive in the part having the curvature and, accordingly, to This has the effect of achieving a disk power ridge that can contribute to the downsizing of the drive drive.
- the shape of the shutter return panel can be simplified. In addition to reducing the cost of the shutter return panel, it also improves the manufacturing quality. Furthermore, since the positioning hole and the movement range of the shutter return panel are in communication, it is possible to form a smaller disk force / trridge than when separately configuring in the respective dedicated spaces.
- the shutter return spring is used to lock the shutter in the closed state of the shutter, so that the shutter can be made in a very simple configuration without adding any new parts for locking.
- the lock can be realized, which makes the disc cartridge inexpensive.
- the tip of the shirt return spring is located in the guide groove provided on the side of the cartridge body, it is prevented from being unlocked by coming in contact with the outside of the cartridge from the outside easily, which is safe.
- An unlocking device can be provided.
- the disc cartridge shirt is blocked by the biasing force of the shutter return panel, providing a disc with a good feeling of operation when removing the disc cartridge.
- the tip end of the shutter return panel is stably moved to the locking recess when the shutter returns from the open state in which the shutter opens to the closed state in which the shutter closes the opening. It is possible to increase the reliability of the shutter lock operation. As a result, the surface condition of the surface of the shirt that comes in contact with the front end of the shirt returns to change due to repeated use, etc. Even when the coefficient of friction when moving the member is high, the shutter can be locked in a highly reliable state.
- the engagement portion between the shirt edging member and the cartridge main body thin, and to realize the thin disc cartridge.
- the size of the optical pickup for recording on the disc stored in the disc cartridge or reproducing the disc can be reduced, the optical disc apparatus using the disc cartridge of the present invention is also remarkable in size. Play an important role.
- the disc is securely engaged with the cartridge body and the cartridge body, and for example, the shutter member is detached from the force tritch body by the force applied from the outside of the disc cartridge and stored. Damage to the body can be suppressed.
- the present invention is also effective for reducing the thickness of the disk cartridge of the present invention and reducing the size and thickness of the disk drive.
- the lower surface of the connecting portion provided in the second case is substantially flush with the lower surface of the disc chucked by the spindle, and the upper surface of the connecting portion is the first case. Since the groove is formed on the side of the cartridge body in combination with the notch formed at the end of the disc, it is necessary to limit the size of the disc outer periphery of the optical pickup without giving any hindrance to guiding and holding the shutter member. In the present invention, it is possible to reduce the thickness and reduce the size of an optical pick-up apparatus using the disk cartridge of the present invention, because the reduction in the size and the restriction on the arrangement of the optical pick-up in the disk drive can be reduced. it can.
- the optical pick-up device moving under the opening from the inner circumference to the outer circumference of the disc is located on the outer circumference side of the disc.
- the force can be prevented from interfering with the optical pick-up in the height direction, for example, the force application member provided on the disk drive chassis or the like for mounting the cartridge body.
- the thickness of the disk drive can be reduced.
- the effect is large in a disk drive using a disk cartridge that stores a disk having a smaller diameter than the size of the optical pick-up device.
- the shutter unlocking operation can be realized with a very simple configuration when inserting the disk force cartridge into the force cartridge holder, the cartridge holder device can be miniaturized, and the disk drive device can be miniaturized. Can be realized.
- the end on the side for releasing the shutter locking means does not abut the tip end of the cartridge, so the force cartridge body It is possible to provide a high quality shirt evening one unlocking device that does not suffer from scratches or poor feel at the time of insertion.
- the shirt water return spring is closed by the opening of the shirt water member and the user of the user after closing the shirt water member. It is possible to ensure protection of the disc in the disc drive by means of a very cheap construction, both to prevent the opening of the opening from being opened up by the handling. You can In addition, since the shutter return spring can be used to realize multiple functions such as shutter return and shutter lock, a mechanism that focuses on the same function in one place compared to when configured using dedicated parts. Configuration is possible and as a result, the size of the disc cartridge can be reduced.
- the degree of freedom in external design is increased, and a novel shape having a large curvature on the distal end side can be obtained.
- the components of the disk drive can be arranged in the portion having the curvature, which can contribute to the miniaturization of the disk drive.
- the unlocking unit moves in the direction of opening the opening to release the lock, so that, for example, the recording and reproducing for recording or reproducing the disc containing the cartridge is performed.
- the lock release operation is possible with an extremely simple configuration in which the disk drive for driving the cartridge in the drive unit is provided with an anchor claw, and for example, the configuration of the force grip portion of the disk drive is extremely simple. It can be configured, and has a significant effect on the cost reduction and reliability of the disk drive. That is, since the shutter is configured to open the opening after the unlocking unit releases the shutter lock by the shutter return spring, the shutter is highly reliable for the operation of opening the opening, and the closing operation is not performed. Even in the closing operation, the hook release part is configured to be able to restore the shutter lock mechanism by the return spring of the shirt by swinging in the closing direction of the shirt in the U-shaped bending portion of the shutter. It is also highly reliable.
- the unlocking portion moves together with the shivering member to the open position. Since there is no interference and no space for retraction of the unlocking part is required in the cartridge, it is possible to miniaturize the force trap.
Landscapes
- Feeding And Guiding Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005500093A JPWO2004032137A1 (ja) | 2002-10-04 | 2003-10-01 | ディスクカートリッジ |
| US10/530,311 US20060085811A1 (en) | 2002-10-04 | 2003-10-01 | Disk cartridge |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-292167 | 2002-10-04 | ||
| JP2002292167 | 2002-10-04 | ||
| JP2003-004468 | 2003-01-10 | ||
| JP2003004468 | 2003-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004032137A1 true WO2004032137A1 (ja) | 2004-04-15 |
Family
ID=32072493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/012622 Ceased WO2004032137A1 (ja) | 2002-10-04 | 2003-10-01 | ディスクカートリッジ |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060085811A1 (ja) |
| JP (1) | JPWO2004032137A1 (ja) |
| TW (1) | TW200416680A (ja) |
| WO (1) | WO2004032137A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07153221A (ja) * | 1993-11-30 | 1995-06-16 | Toshiba Corp | ディスクカートリッジ装置 |
| JP2001093255A (ja) * | 1999-09-20 | 2001-04-06 | Sony Corp | シャッター開閉機構 |
| JP2001344931A (ja) * | 2000-05-29 | 2001-12-14 | Hitachi Maxell Ltd | ディスクカートリッジ |
| JP2002216450A (ja) * | 2001-01-17 | 2002-08-02 | Sharp Corp | ディスクカートリッジ |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960013773B1 (ko) * | 1990-01-29 | 1996-10-10 | 다이닛뽕 인사쓰 가부시기가이샤 | 디스크카트리지 |
| US5515358A (en) * | 1993-01-14 | 1996-05-07 | Matsushita Electric Industrial Co., Ltd. | Disk cartridge and method for constructing the same |
| JPH08306152A (ja) * | 1995-04-28 | 1996-11-22 | Toshiba Corp | ディスクカ−トリッジ |
| JP2001229643A (ja) * | 2000-02-14 | 2001-08-24 | Sony Corp | ディスクカートリッジ |
| US20020163871A1 (en) * | 2000-10-20 | 2002-11-07 | Mitsunobu Yoshida | Disk cartridge and optical disk read/write device |
-
2003
- 2003-10-01 JP JP2005500093A patent/JPWO2004032137A1/ja not_active Withdrawn
- 2003-10-01 WO PCT/JP2003/012622 patent/WO2004032137A1/ja not_active Ceased
- 2003-10-01 US US10/530,311 patent/US20060085811A1/en not_active Abandoned
- 2003-10-03 TW TW092127457A patent/TW200416680A/zh unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07153221A (ja) * | 1993-11-30 | 1995-06-16 | Toshiba Corp | ディスクカートリッジ装置 |
| JP2001093255A (ja) * | 1999-09-20 | 2001-04-06 | Sony Corp | シャッター開閉機構 |
| JP2001344931A (ja) * | 2000-05-29 | 2001-12-14 | Hitachi Maxell Ltd | ディスクカートリッジ |
| JP2002216450A (ja) * | 2001-01-17 | 2002-08-02 | Sharp Corp | ディスクカートリッジ |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060085811A1 (en) | 2006-04-20 |
| TW200416680A (en) | 2004-09-01 |
| JPWO2004032137A1 (ja) | 2006-02-02 |
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