WO2006003980A1 - 回動軸構造及び記録媒体駆動装置 - Google Patents
回動軸構造及び記録媒体駆動装置 Download PDFInfo
- Publication number
- WO2006003980A1 WO2006003980A1 PCT/JP2005/012049 JP2005012049W WO2006003980A1 WO 2006003980 A1 WO2006003980 A1 WO 2006003980A1 JP 2005012049 W JP2005012049 W JP 2005012049W WO 2006003980 A1 WO2006003980 A1 WO 2006003980A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording medium
- cartridge
- support
- piece
- rotating
- Prior art date
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/041—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs contained within cartridges
- G11B17/043—Direct insertion, i.e. without external loading means
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
Definitions
- the present invention relates to a rotary shaft structure in which a rotary piece is rotatably attached to a flat plate-like mounting member via a rotary shaft, and a recording medium driving device provided with the rotary shaft structure.
- a recording medium driving device In order to reproduce information from an optical recording medium and to record information on the recording medium, a recording medium driving device is used.
- the recording medium drive device stores the recording medium inside, and the recording medium is read and written by the recording / reproducing mechanism by rotating the recording medium at high speed inside the device.
- Conventional Example 1 has a structure in which a pair of rotating shafts are provided on both side surface portions of a flat pressing member, and a support portion that receives these rotating shafts is attached to a casing (Patent Document 1).
- Patent Document 1 Japanese Patent Laid-Open No. 9259498 (FIG. 1)
- Conventional example 1 has a structure in which the rotating shafts are attached to both side portions of the pressing member, and therefore, it is necessary to manufacture the pressing member and the rotating shaft in advance and to join them together.
- the tip end side of the rotating shaft must be formed so as to protrude from the support part. As an example, there is a problem that is complicated.
- retaining members such as C-rings must be attached to both ends of the rotating shaft that penetrates the rotating piece.
- small parts are concentrated in a small area. Therefore, the work of attaching the retaining member to both ends of the rotating shaft becomes complicated.
- the thickness of the device is increased by the retaining member attached to the rotating shaft, the size and thickness of the recording medium driving device that is required to be small and thin are sufficient. Cannot be achieved.
- the present invention intends to provide a rotating shaft structure and a recording medium driving device that can be easily assembled and can be reduced in size and thickness. Means for solving the problem
- the rotating shaft structure of the present invention is a rotating shaft structure in which a rotating piece is rotatably attached to a flat plate-like mounting member via a rotating shaft, and the rotating center of the rotating piece is A pair of first support piece portions provided in the vicinity of the respective portions, each having a through hole, and a pair of the first support piece portions provided on the plate-like mounting member facing each of the first support piece portions, each having a through hole formed therein.
- a second support piece portion, and the pivot shaft has a support shaft portion that penetrates the through hole of the first support piece portion and the through hole of the second support piece portion, respectively, and the support shaft portion.
- a retaining shaft portion that is bent and formed integrally with the other end portion of the shaft portion and prevents the support shaft portion from coming off from the first support piece portion and the second support piece portion.
- a recording medium driving device of the present invention is characterized by including the above-described rotating shaft structure of the present invention.
- FIG. 1 is an exploded perspective view showing an entire recording medium driving apparatus according to an embodiment of the present invention.
- FIG. 2 is a front view of the recording medium driving apparatus with a clamp mechanism and a tray removed.
- FIG. 3 is an overall perspective view in which a clamp mechanism and a tray of the recording medium driving device are removed.
- FIG. 4 is a plan view of the clamp mechanism.
- FIG. 5 is a cross-sectional view taken along line V—V in FIG.
- FIG. 6 is a cross-sectional view taken along line VI—VI in FIG.
- FIG. 7 A view showing a state in which the clamper is separated from the disc table cover and corresponding to FIG.
- FIG. 8 is a view corresponding to FIG. 6 for explaining the operation of the pressing member.
- FIG. 9 is a view corresponding to FIG. 6 for explaining the operation of the pressing member.
- FIG. 10 is a plan view showing a cartridge type recording medium.
- the recording medium driving device of the present embodiment reproduces and records or records a recording medium, and has a substantially rectangular planar case 10 and a base member 20 attached to the inside of the case 10. And a tray 30 as a transport means that can be inserted and discharged through an entrance (not shown) in the housing 10, a clamp mechanism 40 attached to the upper surface of the housing 10, and a metal that covers the outer peripheral surface of the housing 10. Equipped with a ⁇ casing not shown!
- the recording medium used in this recording medium driving apparatus includes a bare disk type recording medium that uses the disk as it is, such as a CD, and a cartridge that houses the disk main body 91 inside the cartridge 92 as shown in FIG.
- the cartridge 92 of this cartridge type recording medium is provided with an opening 93 extending from the outer periphery toward the center. From the opening 93, the internal disc body 91 can be reproduced and Z or recorded.
- a cover is provided! /
- the cartridge 92 shown in FIG. 10 is a blue-ray cartridge, and a large substantially circular open surface 94 is formed at the center thereof.
- the open surface 94 has a depressed structure as compared with the peripheral portion 92A.
- a cartridge information part is provided at one end or both ends of the cartridge 92.
- the housing 10 is a member formed of a synthetic resin or the like, and includes a flat rectangular bottom 11, a back surface 12 integrally formed on one of the short side peripheral edges, and a peripheral edge of the bottom 11.
- a front part 14 that rises integrally from the bottom 11 on the other side of the short side, and two side parts 15 that are integrally formed on both long sides of the peripheral part of the bottom 11 and have substantially the same height as the back part 12 15
- an upper surface opening portion 13 that is surrounded by the side surface portion 15 and the back surface portion 12 and that faces the bottom portion 11 is formed.
- the bottom portion 11 has a side surface portion 15, a front surface portion 14, and a back surface portion 12 formed at the peripheral edge thereof, and a large cavity hole is provided inside thereof.
- the cavity 11 in the bottom 11 is a space for storing an electric circuit (not shown), and the operation of the recording medium driving device is controlled by this electric circuit.
- a sliding piece 150 that slidably supports the tray 30 is provided on the inner wall of the side surface portion 15 in the front-back direction.
- a base member 20 is swingably attached to the back side of the side surface portion 15.
- the front surface portion 14 is formed to have a smaller vertical dimension than the back surface portion 12 and the side surface portion 15, and an opening portion 141 through which the tray 30 is taken in and out is provided on the upper surface side of the front surface portion.
- the front unit 14 is provided with an operation unit (not shown).
- This operation section includes an eject button for taking in and out of the tray 30, a volume knob for adjusting the volume, an earphone inlet, and the like.
- the upper surface opening 13 is attached with a clamp mechanism 40 which is one of the mechanisms for holding the recording medium.
- the base member 20 is formed by press-molding a metal plate material.
- a planar circular disk table 23 that can rotate about the vertical direction as a rotation axis is attached to a position that is a predetermined distance away from the front side force of the base member 20 and that is substantially centered in the side surface direction.
- the disk table 23 is provided so as to protrude from the upper surface of the base member 20 to the upper surface side.
- a rotating drive mechanism (not shown) such as a motor is provided on the lower surface side of the disk table 23.
- the electrical circuit and the pattern wiring are electrically connected by a synthetic resin flexible substrate or the like embedded therein. When an electric signal of a drive command is transmitted from the electric circuit
- the rotation drive mechanism rotates the disk table 23 at a high speed.
- the disk table 23 includes a mounting portion 232 for mounting a recording medium, and a tapered portion 231 provided at the center of the mounting portion 232 and having a smaller diameter on the upper surface side.
- the tapered portion 231 is engaged with the circular hole portion 93 of the disk main body 91.
- a magnet 231A is fitted on the upper surface side of the taper portion 231, and the upper surface side of the mounting portion 232 is made of a synthetic resin that protects the surface of the recording medium and prevents slippage.
- Sheet member 232A is bonded. The sheet member 232A prevents the recording medium from slipping even when the disk table 23 rotates at a high speed, so that the recording surface of the recording medium is not damaged.
- a recording / reproducing mechanism arrangement hole 26 is provided on the back side of the disk table 23 of the base member 20, and a recording / reproducing mechanism 27 is provided in the recording / reproducing mechanism arrangement hole 26. Yes.
- the recording / reproducing mechanism 27 is shown only in FIG. 3, and is omitted in other drawings.
- This recording / reproducing mechanism 27 is a device that records and / or reproduces information by irradiating the recording surface of the recording medium with a laser beam, and can be moved back and forth along the front and back direction of the recording / reproducing mechanism arrangement hole 26 of the base member 20. It has become.
- a detection board mounting portion 211 protruding to the front side is formed.
- a flat detection board 60 is fixed to the lower surface side of the detection board mounting portion 211.
- a detection switch 61 is erected on the upper surface side, and the detection switch 61 extends to the lower surface side of the base member 20, and is connected to the electric circuit via a wiring (not shown). It is connected.
- a detection pin 611 is provided at the tip of the detection switch 61 toward the upper surface side.
- a projecting first shaft 21 and second shaft 22 are provided on the side surface of the base member 20 toward the side surface portion 15.
- the first shaft 21 is provided on both side surfaces of the base member 20 such that the substantially central force of the disk table 23 also faces the side surface portion 15, and the second shaft 22 is provided on the back surface side of both side surfaces of the base member 20.
- a first guide groove 15 is provided at a position corresponding to the first shaft 21. 1 is formed integrally with the side surface 15!
- a shaft support member 153 is fixed to the end of the side surface portion 15 on the back side.
- the shaft support member 153 is a member having a substantially L-shaped cross section, and three shaft fixing holes 153 A are formed in one piece of the L shape, and the second guide hole 152 is formed in the other piece. Is provided.
- the back surface side of the side surface portion 15 has a flat surface portion 154 to which the shaft support member 153 is attached.
- the flat surface portion 154 includes two bearing protrusions 154A protruding from the upper surface side, and the space between the bearing protrusions 154A. Is provided with a bearing hole 154B!
- the tray 30 is a member formed of a synthetic resin such as ABS resin.
- the tray 30 includes a mounting surface 31 formed in a flat rectangular shape and an upright portion 32 that rises from the front side of the peripheral portion of the mounting surface 31. Have.
- a straight groove portion (not shown) is integrally formed on the side surface of the lower surface side of the tray 30 along the direction in which the tray 30 advances and retreats, and the sliding piece 150 of the side surface portion 15 is engaged with the groove portion.
- the tray 30 can smoothly advance and retract in the front-back direction by these grooves and the sliding piece 150.
- the mounting surface 31 can be placed between a cartridge type recording medium and a bare disk type recording medium, and has a circular concave portion for mounting the bare disk type.
- a slider 33 as a recording medium positioning member formed of synthetic resin or the like is attached to the back side of the tray 30.
- the slider 33 is biased to the front side by an elastic member (not shown) such as a spring.
- Disc holders 35 are rotatably attached to both ends of the upper portion 32 of the tray 30.
- Detection hole portions are formed at both end portions on the front surface side of the mounting surface 31 of the tray 30.
- the detection pin 611 of the detection board 60 attached to the base member 20 is also in the tray 30. Move to the side. At this time, the detection pin 611 is inserted through the detection hole 34 and protrudes to the upper surface side of the mounting surface 31. This is used to detect information on the cartridge type recording medium when a cartridge type recording medium is used for the mounting surface 31.
- the detection pin 611 at the tip of the detection switch 61 protruding from the mounting surface 31 is connected to this cartridge. This is used to detect the information of the cartridge information part recording medium provided on the recording medium of the same type.
- a cartridge type recording medium includes a recording medium that can be selected to be writable or not, and this has a cartridge information part for selecting whether writable or not in the cartridge 92. Some parts become writable when the part is blocked, and some parts become unwritable when the cartridge information part is exposed.
- FIGS. 5 and 6 The detailed structure of the clamping mechanism 40 is shown in FIGS. In FIGS. 5 and 6, the tray is not shown.
- the clamp mechanism 40 includes a flat plate mounting member 40A attached to the housing 10, a clamper holder 42 attached to the flat plate mounting member 40A and supporting a clamper 41 at the tip, and the clamper holder 42 And holding members 43 provided on both the left and right sides of the holding member 43, respectively.
- the pressing member 43 is arranged in parallel with the advancing / retreating direction of the cartridge 92, and the dimension between these corresponds to the width dimension of the cartridge 92.
- the flat mounting member 40A has an opening for allowing the clamper holder 42 to face the disc table 23 at the center thereof, and has an opening for making the pressing member 43 face the cartridge 92 on both sides thereof. Yes.
- the clamper 41 holds the bare disk engaged with the disk table 23 or the disk main body inside the cartridge 92 so that it does not come off the disk table 23.
- the clamper holder 42 holds the disk table 23 against the disk table 23. Are closely separated.
- the clamper 41 is made of synthetic resin, and a disc-like metal member (not shown) is fitted on the upper surface side of the center portion, and flanges are formed on the upper and lower ends thereof.
- the clamper holder 42 includes a holder main body 42A that holds the outer peripheral portion of the clamper 41 so as to be movable up and down, and a central portion that is rotatably supported by a flat plate-like mounting member 40A via a rotary shaft 70, and the holder main body 42A. And a posture holding means 42B for maintaining the posture of the clamper 41 with respect to the disc table 23 regardless of the rotation posture of the clamper 41.
- the holder main body 42A is a rotating piece formed in a substantially flat plate shape, and has a front end portion and a rear end portion. Each is provided with a stagger portion 42A1 for restricting rotation to the disk table 23 side, and a biasing portion 42A2 for biasing the rear end portion downward and biasing the front end portion upward.
- Three holder main bodies 42A are formed by cutting and raising a pair of first support piece portions 71 in the vicinity of the rotation center portion thereof, and through holes are respectively formed in these first support piece portions 71. Is formed.
- second support pieces 72 are formed by cutting and raising each of the flat support members 40A so as to face the first support pieces 71 on both sides.
- Each part 72 has a through hole.
- the pivot shaft 70 is integrally formed by bending a support shaft portion 73 that passes through the through hole of the first support piece portion 71 and the through hole of the second support piece portion 72, and one end portion of the support shaft portion 73, respectively.
- the support shaft portion 72, the spring member 75, and the retaining shaft portion 74 are formed by bending a single linear member (for example, a wire). The end of the retaining shaft 73 is locked to a locking projection 76 formed on the flat mounting member 40A.
- the holder body 42A is set at a predetermined position of the flat mounting member 40A, and the through hole of the first support piece 71 and the through hole of the second support piece 72 are set.
- the end of the support shaft 73 of the rotating shaft 70 is passed through, while the stopper shaft 73 is locked to the locking projection 76.
- the posture holding means 42B has a leaf spring-like engagement in which the front end portion is engaged between the flanges of the clamper 41 and the central portion is rotatably attached to the flat plate-like attachment member 40A via the rotation shaft 70.
- a guide pin 42B2 for guiding the rear end thereof is provided. Even when the holder main body 42A is inclined in the direction away from the disk table 23, the clamper 41 is separated from the disk table 23 by the engagement piece 42B1 in a state in which the horizontal posture is maintained (see FIG. 7). ).
- the engaging piece 42B1 is a rotating piece, and is formed by cutting and raising a pair of first supporting piece portions 71 in the vicinity of the turning center portion. Each through-hole is formed. Opposing to the first support piece 71, the second support piece 72 is flat. The mounting member 40A is cut and raised, and through holes are formed in the second support piece portions 72, respectively. The rotating shaft 70 is passed through these through holes.
- the holding member 43 holds the front end portion and the rear end portion of the cartridge 92 toward the tray side, and is arranged via a rotating shaft 70 whose axis is perpendicular to the insertion / ejection direction of the cartridge 92.
- the rotating member 44 attached to the flat plate-like mounting member 40A, and the elasticity that the rotating member 44 is fixed and the front end side and the rear end side extend from the rotating end of the rotating member 44, respectively.
- a holding piece 45 is substantially perpendicular to the insertion / ejection direction of the cartridge 92, but is strictly limited to 90 ° (orthogonal) and includes those intersecting at a predetermined angle. It is.
- the rotation member 44 is a rotation piece formed in a substantially flat plate shape, and two of the first support piece portions 71 are cut and raised in the vicinity of the rotation center portion.
- the first support piece portion 71 is formed with a through hole.
- a second support piece 72 is formed by cutting and raising the flat support member 40A so as to face the first support piece 71, and a through hole is formed in each of the second support pieces 72. Has been.
- the rotating shaft 70 is passed through these through holes.
- the elastic pressing piece 45 has a central portion fixed to the rotating member 44, and the front end portion and the rear end portion thereof have substantially spherical contact portions 45A that contact the cartridge 92, respectively. Is formed.
- An urging member 46 for constantly urging the rear end portion in the proximity direction to the cartridge side is connected to the central portion of the elastic pressing piece 45.
- the front end of the urging member 46 is locked in an engagement hole 40C formed in the flat mounting member 40A.
- the elastic pressing piece 45 and the urging member 46 are formed of a single leaf spring by a press carriage or the like, and are arranged in substantially the same plane.
- an interlocking mechanism 500 is provided on the front side of the housing 10.
- the structure 500 includes a drive cam 50 that engages with the base member 20, a first rack 52 that is integrally formed with the drive cam 50, and a gear that meshes with the first rack 52 and has a first gear 531 to a fourth gear 534.
- a second rack (not shown) that is provided on the lower surface side of the tray 30 and is engaged with the gear mechanism 53.
- a cam groove 51 extending in the lateral direction is formed on the back side of the drive cam 50, and the cam engagement pin 24 of the base member 20 is engaged with the cam groove 51.
- the cam groove 51 is formed in an inclined shape so that one end is disposed on the upper surface side and the other end is disposed on the lower surface side. As the drive force 50 reciprocates in the lateral direction, the cam engagement pin 24 travels between the opposite ends of the cam groove 51 along this inclined portion, so that the base member 20 can reciprocate in the vertical direction. It is.
- the first rack 52 formed on one side surface of the drive cam 50 is meshed with the third gear 533 of the gear mechanism 53.
- a second gear 532 having a diameter larger than that of the third gear 533 is formed on the lower surface side of the third gear 533.
- the second gear 532 meshes with the first gear 531 and the fourth gear 534.
- the first gear 531 is meshed with the motor gear 542 of the motor unit 54.
- the motor gear 542 is connected to a wheel 541 by a synthetic resin ring-shaped belt 543.
- a motor main body (not shown) is provided via the housing 10, and this motor main body force is directly applied to the driving force.
- the holding member 43 is moved behind the elastic holding piece 45 by the elastic force of the biasing member 46 (see FIG. 4).
- the end portion (depth side end portion) is close to the base member 20, and the front end portion (entrance / exit side end portion) of the elastic pressing piece 45 is separated from the base member 20 so that the bottom surface force of the flat mounting member 40A is also retracted.
- the disk table 23 stands by at a lower position.
- the end portion of the cartridge 92 comes into contact with the contact portion 45A on the rear end side (depth side) of the elastic pressing piece 45, as shown in FIG. Then, the abutting portion 45A is pushed up, the elastic pressing piece 45 rotates together with the rotating member 44, and the abutting portion 45A on the front end side (entrance / exit side) of the elastic pressing piece 45 presses the cartridge 92. . In this state, the vicinity of the four corners of the cartridge 92 is pressed against the tray by the two pressing members 43.
- the base member 20 When the cartridge 92 is set at a predetermined position, the base member 20 is rotated, the disk table 23 is engaged with the hole of the disk body housed in the cartridge 92, and the disk body is attached to the disk table 23 and the clamper 41. And clamp with. Further, as the base member 20 rotates, the detection switch 61 rises and engages with a predetermined portion of the cartridge 92. At this time, the force that the cartridge 92 in contact with the detection switch 61 tries to lift up. Since the cartridge 92 is pressed by the pressing member 43, the cartridge 92 does not lift up.
- the cartridge 92 When the recording of information is completed, the cartridge 92 is removed from the housing 10. The cartridge 92 is ejected in the state where it is placed on the tray. As soon as the cartridge 92 starts to move, the contact of the rear end side contact portion 45A of the elastic pressing piece 45 from the force cartridge 92 is released.
- the elastic pressing piece 45 and the rotating member 44 are rotated in the opposite direction by the elastic force of the urging member 46, and the abutting portion 45A of the front end portion is pushed up to release the contact with the cartridge 92. The Thereafter, even if the cartridge 92 moves in the ejection direction, it does not contact the elastic pressing piece 45.
- the rotating shaft structure in which the joining piece 42B1 and the rotating member 44 are rotatably attached is provided in the vicinity of the rotation center of the holder main body 42A, the engaging piece 42B1 and the rotating member 44, respectively.
- the rotating shaft 70 includes a support shaft portion 73 penetrating through the through hole of the first support piece portion 71 and the through hole of the second support piece portion 72, and the support shaft portion 73.
- a retaining shaft portion 74 that is integrally formed by bending at one end portion and that prevents the supporting shaft portion 73 from coming off is provided.
- the holder main body 42A, the engaging piece 42B1, and the rotating member 44 can be easily attached to the flat mounting member 40A by the rotating shaft 70 by penetrating the tip end portions of the support shaft portions 73 into the through holes. it can.
- the rotation shaft 70 is prevented from being detached by the retaining shaft portion 74, the rotation shaft 70 is not accidentally detached from the flat plate-like mounting member 40A.
- the rotating shaft 70 has a structure in which the supporting shaft portion 73 and the retaining shaft portion 74 are integrally formed. Therefore, it is easy to make the shape in the plane L-shaped or other planar shapes. As a result, the rotating shaft structure can be reduced in size and thickness.
- a spring member 75 is provided between the support shaft portion 73 and the retaining shaft portion 74 so that the support shaft portion 73 is not displaced in the through hole. Since the backlash does not occur when the main body 42A, the engaging piece 42B1 and the rotating member 44 are mounted on the flat mounting member 40A, the rotating shaft 70 cannot be accidentally detached!
- the structure of the rotating shaft 70 can be simplified.
- the rotating shaft 70 can be easily manufactured.
- the recording medium driving device is configured with the rotating shaft structure having the structure described above, the recording medium driving device itself can be reduced in size and thickness as the rotating shaft structure can be reduced in size and thickness. can do.
- the pressing member 43 is a flat plate-shaped member that is rotatable about a direction substantially perpendicular to the insertion / ejection direction of the cartridge 92 as an axis.
- the attached member 40A has a rotating member 44, and an elastic pressing piece 45 that is fixed to the rotating member 44 and that has a front end side and a rear end side extending from the rotating end portion of the rotating member 44. Configuration.
- the rotating member 44 is operated to separate the end of the elastic pressing piece 45 on the rear end side (entrance / exit side) from the cartridge 92, and the inserted cartridge 92 is brought into a predetermined position.
- the rotating member 44 is operated to hold the front and rear ends of the cartridge 92 at the front and rear ends of the elastic pressing piece 45. Accordingly, the moving distance when the cartridge 92 is pressed at both ends of the elastic pressing piece 45 can be shortened, so that the surface of the cartridge 92 is less likely to be damaged.
- the load on the motor that operates the transport mechanism (such as a tray) can be reduced. Further, the cartridge 92 inserted into the inside of the housing 10 is restrained from being lifted by the pressing member 43.
- the two pressing members 43 are arranged side by side in a direction substantially orthogonal to the insertion / ejection direction of the cartridge 92, the pressing members 43 can be pressed near the four corners of the cartridge 92 formed in a planar rectangular shape. Thus, the floating of the cartridge 92 can be effectively suppressed.
- the flat mounting member 40A and the rotating member 44 are each formed in a substantially flat plate shape, the recording member is attached by attaching the rotating member 44 to the mounting member 40A. It becomes possible to make the whole driving device thin.
- the elastic pressing piece 45 Since the elastic pressing piece 45 is connected to the urging member 46 that constantly urges the rear end portion in the direction approaching the cartridge 92 side, the front end portion of the elastic pressing piece 45 is usually Since the cartridge 92 is held in a direction away from the cartridge 92, the front end portion of the elastic pressing piece 45 is not accidentally brought into contact with the cartridge 92 and is not damaged when the cartridge 92 is inserted. When the end portion of the cartridge 92 reaches the rear end portion of the elastic pressing piece 45, the rear end portion moves to rotate the elastic pressing piece 45 and the rotating member 44. Since 92 is held down, the cartridge 92 can be prevented from lifting.
- the elastic pressing piece 45 and the biasing member 46 are also formed with a single leaf spring force. Therefore, it is possible to easily reduce the thickness of the apparatus.
- rotating shaft structure of the present invention is not limited to the above-described embodiment, and it goes without saying that various changes can be made without departing from the scope of the present invention.
- the rotating shaft structure is applied to the recording medium driving device.
- the rotating shaft structure may be applied to other electronic devices such as a video deck, a printer, and the like. Noh.
- the present invention is not limited to this.
- the present invention may be a recording medium driving apparatus that can use only a cartridge type recording medium or a bare disk type recording medium.
- the rotating shaft structure of the present embodiment is the rotating shaft structure in which the rotating pieces are rotatably attached to the flat mounting member 40A via the rotating shaft 70.
- a pair of first support piece portions 71 provided in the vicinity of the respective portions, each having a through hole, and a flat mounting member 40A provided to face each of the first support piece portions 71 and each having a through hole formed therein.
- the pivot shaft 70 includes a pair of second support piece portions 72, and the rotation shaft 70 passes through the through hole of the first support piece portion 71 and the through hole of the second support piece portion 72, respectively.
- a retaining shaft that is integrally formed by bending at one end of the support shaft portion 73 and prevents the support shaft portion 73 from coming off. Part 74.
- the rotating piece can be easily attached to the flat mounting member 40A by the rotating shaft 70 by penetrating the tip end portions of the support shaft portions 73 into the through holes. Moreover, since the rotation shaft 70 is prevented from being detached by the retaining shaft portion 74, the rotation shaft 70 is not mistakenly detached from the flat plate-like mounting member 40A. Moreover, since the rotation shaft 70 has a structure in which the support shaft portion 73 and the retaining shaft portion 74 are integrally formed, it is easy to make the shape in the plane L-shaped and other planar shapes. Therefore, the rotating shaft structure can be reduced in size and thickness.
- the present invention can be used for a rotary shaft structure in which a rotary piece is rotatably attached to a flat plate-like mounting member via a rotary shaft, and a recording medium driving device provided with this rotary shaft structure.
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JP2004-194466 | 2004-06-30 | ||
JP2004194466 | 2004-06-30 |
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WO2006003980A1 true WO2006003980A1 (ja) | 2006-01-12 |
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Cited By (1)
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US20150231221A1 (en) * | 2006-12-19 | 2015-08-20 | Board Of Regents, The University Of Texas System | Immunogenic compositions comprising progastrin and uses thereof |
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JP2000348416A (ja) * | 1999-06-04 | 2000-12-15 | Matsushita Electric Ind Co Ltd | ディスク装置 |
JP2001344867A (ja) * | 2000-06-06 | 2001-12-14 | Alps Electric Co Ltd | 記録媒体駆動装置 |
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2005
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JPH0363962A (ja) * | 1989-08-02 | 1991-03-19 | Teac Corp | 磁気ディスク装置 |
JPH1049956A (ja) * | 1996-07-31 | 1998-02-20 | Victor Co Of Japan Ltd | ディスクプレーヤ |
JP2000348416A (ja) * | 1999-06-04 | 2000-12-15 | Matsushita Electric Ind Co Ltd | ディスク装置 |
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US20150231221A1 (en) * | 2006-12-19 | 2015-08-20 | Board Of Regents, The University Of Texas System | Immunogenic compositions comprising progastrin and uses thereof |
US10335470B2 (en) * | 2006-12-19 | 2019-07-02 | Board Of Regents, The University Of Texas System | Immunogenic compositions comprising progastrin and uses thereof |
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