WO2007055258A1

WO2007055258A1 - Recording medium driving device

Info

Publication number: WO2007055258A1
Application number: PCT/JP2006/322332
Authority: WO
Inventors: Junji Takahashi
Original assignee: Pioneer Corporation
Priority date: 2005-11-11
Filing date: 2006-11-09
Publication date: 2007-05-18

Abstract

In a disc device (10), an optical disc (20) is placed on a cover member (200) which is rotatable to a main body (100) whereupon a turntable (123) is arranged, and when the cover member (200) turns to the main body (100) and closed, the optical disc (20) is pressed to the turn table (123) by a clamper lifting mechanism (240). Thus, the optical disc (20) can be mounted by being surely pressed to a center hole engaging section (123B) of the turntable (123) by the clamper lifting mechanism (240).

Description

Specification

Recording medium driving device

Technical field

The present invention relates to a recording medium driving apparatus that drives a disk-shaped recording medium.

Background art

Conventionally, a thin disk device corresponding to a thin device such as a thin television has been known (see, for example, Patent Document 1).

[0003] The device described in Patent Document 1 is a disk device in which a drawer is provided in a cabinet so as to be freely inserted and removed. The drawer of the disk device is provided with a tray, a disk chucking mechanism, a disk motor that drives an optical disk chucked by the disk chucking mechanism, and a pickup. In this apparatus, the drawer is ejected from the cabinet, the optical disc is placed and chucked directly on the disc chucking mechanism, and the drawer is stored in the cabinet to clamp and store the optical disc.

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-367358 (refer to page 4 left column to page 5 right column, see FIGS. 2 and 3)

Disclosure of the invention

Problems to be solved by the invention

[0004] By the way, in a conventional configuration such as Patent Document 1, a user chucks and mounts an optical disc directly on a disc chucking mechanism. However, in such a configuration in which the disc is directly attached to the disc chucking mechanism in this way, the disc mountability is not stabilized due to the force applied at the time of installation, for example, the disc is about to come off the turntable force or force is applied. One example is the problem that the surface of the pickup or disc may be damaged too much.

[0005] In view of the above problems, an object of the present invention is to provide a recording medium driving device capable of reliably mounting a disc.

Means for solving the problem [0006] A recording medium driving device of the present invention has an opening, a main body having a holding portion for holding a disk-shaped recording medium facing the opening, and a lid provided on the main body so as to be rotatable. A member, an opening / closing drive unit that rotates the lid member to open and close the opening, and the lid member is rotated toward the main body by the opening / closing drive unit. And a clamping mechanism that presses and clamps the side force on the holding portion.

Brief Description of Drawings

FIG. 1 is a perspective view schematically showing an outline of a DVD drive-integrated thin television to which a disk device according to an embodiment of the present invention is attached.

FIG. 2 is a schematic diagram showing an outline of a cross section of the inside of the disk device main body and the vicinity of a clamper mechanism of the lid member in a state where the lid member is open.

FIG. 3 is a cross-sectional view schematically showing a side cross section of the disk device in a state where a lid member is opened.

FIG. 4 is a plan view schematically showing a schematic configuration of a lid member.

FIG. 5 is a cross-sectional view around the clamper of the lid member.

FIG. 6 is a schematic diagram showing an outline of the internal configuration of the disk device in a state where the lid member is closed.

FIG. 7 is a plan view schematically showing an outline of the internal configuration of the disk device in a state where the lid member closes the opening.

FIG. 8 is a cross-sectional view schematically showing an outline of a side cross section of the disk device in a state where the lid member is locked to the main body.

FIG. 9 is a cross-sectional view schematically showing an outline of a side cross section of the disc device in a state where the optical disc is clamped.

FIG. 10 is a cross-sectional view schematically showing a side cross section of a disk device when an optical disk is mounted.

FIG. 11 is a cross-sectional view schematically showing a side cross section of the disk device during ejection. Explanation of symbols

[0008] 10 ... Disk device as recording medium driving device 100 ... body

112… opening

123… Turntable as holding part

130 ... Drive transmission mechanism as opening / closing drive

144… Hook locking part constituting the locking mechanism

200… Lid member

213 ... Lock hook constituting the lock mechanism

235 • ··· Short disc lock as claw member

236 • ··· Long disc lock as claw member

240… Clamper lifting mechanism as clamping mechanism

300… Clumper

BEST MODE FOR CARRYING OUT THE INVENTION

[Configuration of Disk Device]

Hereinafter, a disk device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing an outline of a DVD drive-integrated thin television to which a disk device according to an embodiment of the present invention is attached. FIG. 2 is a plan view schematically showing a schematic cross section of the inside of the disk device main body and the vicinity of the clamper mechanism of the lid member in a state where the lid member opens the opening. FIG. 3 is a sectional view schematically showing a side section of the disk device in FIG. FIG. 4 is a plan view schematically showing the outline of the lid member. FIG. 5 is a sectional view around the clamper of the lid member. FIG. 6 is a plan view schematically showing an outline of the internal configuration of the disk device in a state where the lid member closes the opening. FIG. 7 is a plan view schematically showing an outline of the internal configuration of the disk device in a state where the lid member is locked to the main body. FIG. 8 is a cross-sectional view schematically showing a side cross section of the disk device in a state where the lid member is locked to the main body. FIG. 9 is a cross-sectional view schematically showing a side cross section of the disk device in a state where the optical disk is clamped.

In FIG. 1, a recording / reproducing apparatus 1 of the present embodiment includes a control unit (not shown) inside, and includes a screen 1 A for displaying image information, a speaker (not shown), and the like. The recording / reproducing apparatus 1 is a receiving device (not shown) or a disk device 10 as a recording medium driving device. When the input signal to be transmitted is recognized, the control unit outputs various kinds of information such as image information and audio information from the screen 1A or a speaker. In this embodiment, an example of the disk device 10 provided in the television integrated DVD recording / reproducing apparatus 1 as shown in FIG. 1 is shown, but the device provided with the disk device 10 is not limited to this. In other words, the disc device 10 is a disc device such as a DVD-RZRW (Digital Versatile Disc-Recordable I Rewritable) drive installed in a personal computer, a DVD player that is driven alone, a CD player, a portable DVD player, a portable device. It can also be used as a disc device such as a CD player. Further, the recording medium driven by the disk device 10 is not limited to a DV D (Digital Versatile Disc), and can correspond to an optical disk such as a CD (Compact Disc) or a BD (Bru-ray Disblurable Disc). The disk device 10 includes a main body 100 attached to a television body type DVD recording / reproducing apparatus 1 (hereinafter referred to as a recording / reproducing apparatus 1), a lid member 200 provided to be rotatable with respect to the main body 100, Etc. In the following description, the state in which the lid member 200 is rotated away from the main body 100 to open the opening 112 is the open state, and the state in which the lid member 200 and the main body 100 are substantially orthogonal is the horizontal state, the lid A state in which the member 200 is rotated toward the main body 100 and the opening 112 is closed is appropriately referred to as a closed state, and a state in which the lid member 200 is locked to the main body 100 is appropriately referred to as a locked state.

[0011] As shown in FIG. 2 and FIG. 3, the main body 100 is provided in a vertically-arranged state in which a part of the recording / reproducing apparatus 1, for example, a front end is set up in the vertical direction. The main body 100 includes a casing 110, a traverse mechanism 120, a drive transmission mechanism 130 as an opening / closing drive unit, a lockarm 140, rotation control of the drive transmission mechanism 130, and information processing control of the information processing unit. And a control circuit unit (not shown) that implements the above. In the present embodiment, an example in which the main body 100 is vertically placed with respect to the recording / reproducing apparatus 1 is shown, but the installation direction and the installation position are not particularly limited.

[0012] The housing 110 is surrounded by a bottom portion 111 having a substantially rectangular plane parallel to the vertical direction, a left side wall 111A, a right side wall 111B, an upper side wall 111C, a lower side wall 111D, and the side walls rising from the periphery of the bottom portion 111. It is formed in a substantially box shape with an opening 112 facing the bottom 111. The housing 110 may be fixed to the recording / reproducing apparatus 1 by screwing or the like, or may be formed integrally with the main body 100, for example. Also this housing 110 includes a traverse mechanism 120, a drive transmission mechanism 130, a lock arm 140, a control circuit unit, and the like. Further, the housing 110 is provided with a wiring hole (not shown), and the control unit of the recording / reproducing apparatus 1 and the control circuit unit inside the main body 100 are electrically connected.

[0013] Then, on the lower side wall 111D of the casing 110, a lid attaching portion 113 to which the lid member 200 capable of closing the opening 112 is movably attached is formed. The lid mounting portion 113 is provided with a rotation hole portion (not shown) on the left and right side surfaces, and is supported by a rotation shaft (not shown) provided on the lid member 200 in the rotation hole portion, so that the lid member 200 is rotatable. Is attached. In addition, the surface of the lid attaching portion 113 that faces the opening 112 is formed with a curved surface portion 113A corresponding to the turning miracle of the end portion of the lid member 200. Further, a lid movement restricting portion 113B that restricts the movement of the lid member 200 when the lid member 200 is in a horizontal state substantially perpendicular to the vertical direction is provided at the end of the curved surface portion 113A on the upper wall 111C side. Is formed.

[0014] The traverse mechanism 120 has a pedestal 121 that is formed in a substantially plate shape, for example, with a metal plate and is supported on the casing 110 so that one end thereof is swingable. As shown in FIG. 2, the pedestal 121 is formed in a longitudinal direction from the right side wall 111B side of the upper side wall 111C of the casing 110 toward the center, and can swing through the float rubber 120A. Attached to the bottom 111. Further, the pedestal 121 has a longitudinal processing opening 121A cut out substantially in the center along the longitudinal direction. A disk rotation driving means 122 is disposed at one end of the processing opening 121A of the pedestal 121, that is, at a substantially central position of the housing 110. The disk rotation driving means 122 includes a spindle motor (not shown) and a turntable 123 as a holding portion provided integrally with the output shaft of the spindle motor. The spindle motor is controllably connected to the control circuit unit, and is driven by the power supplied from the control circuit unit. The turntable 123 is a drive unit that is provided at a substantially central portion inside the housing 110 and that rotationally drives the optical disc 20. The turntable 123 includes a disc-shaped mounting surface 123A on which the optical disk 20 is mounted, and a center hole engaging portion 123B that protrudes in the rotation axis direction of the turntable 123 at the approximate center of the mounting surface 123A. Is provided. The center hole engaging portion 123B has a peripheral surface formed in a taper shape so that the diameter dimension thereof becomes smaller at the protruding tip according to the directional force. 21 is locked. Further, a clamper hole 123C is provided at the center position at the protruding tip of the center hole engaging portion 123B. Further, a magnet is provided at the approximate center of the center hole engaging portion 123B. In the present embodiment, an example is shown in which the traverse mechanism 120 is formed longitudinally from the right side wall 111B side of the upper side wall 111C toward the center position. However, for example, the traverse mechanism 120 is centered from the left side wall 111A side of the upper side wall 111C. It may be formed from the left side wall 111A or the right side wall 111B of the lower side wall 111D toward the center position.

In addition, an information processing unit 124 is disposed on the pedestal unit 121. The information processing unit 124 is supported in a state of being bridged between a pair of guide shafts (not shown), and is moved close to and away from the turntable 123 in the processing opening 121A by a moving mechanism (not shown). The information processing unit 124 includes a pickup having a light source (not shown), a pick-up lens 124A for converging the light having the light source power, and an optical sensor (not shown) for detecting the outgoing light reflected by the optical disc 20.

As shown in FIG. 2, the drive transmission mechanism 130 is provided in the vicinity of the left side wall 111 A of the lid mounting portion 113 of the housing 110, and transmits a rotational driving force to the lid member 200. The drive transmission mechanism 130 includes a loading motor 131, first and second transmission gears 132, 133, a drive gear 134, a lock gear 135, an opening / closing transmission gear 136, and the like. The loading motor 1 31 is fixed to the bottom 111, and the first and second transmission gears 132 and 133, the drive gear 134, and the lock gear 135 are rotatably supported on the bottom 111. The opening / closing transmission gear 136 is rotatably supported on the left side wall 111A.

The loading motor 131 is electrically connected to the control circuit unit, and rotates the rotation shaft based on a control signal from the control circuit unit. Also, a worm gear 1 31A is provided at the tip of the rotating shaft. Then, for example, when an eject button (not shown) is pressed, the loading motor 131 rotationally drives the rotating shaft based on the control signal of the control circuit unit force, and transmits the rotational driving force from the worm gear 131A to the first transmission gear 132. .

[0018] The first transmission gear 132 is integrally provided coaxially with the first large-diameter transmission gear 132A having a large diameter and the first large-diameter transmission gear 132A, and has a small diameter and the first small-diameter transmission gear 132B. And. The first large-diameter transmission gear 132A is a so-called helical gear, Has diagonally twisted teeth. The first large-diameter transmission gear 132A is engaged with the worm gear 131A and converts the rotational driving force of the loading motor 131 into an axial direction in which the rotational axis is orthogonal to the bottom portion 111 of the housing 110. The first small diameter transmission gear 132B is meshed with the second transmission gear 133. Thus, the first transmission gear 132 decelerates the rotational driving force from the loading motor 131 and transmits it to the second transmission gear 133.

[0019] The second transmission gear 133 is integrally formed coaxially with the second large diameter transmission gear 133A having a large diameter and the second large diameter transmission gear 133A. Transmission gear 133B. The second large diameter transmission gear 133A meshes with the first small diameter transmission gear 132B, and the second small diameter transmission gear 133B meshes with the drive gear 134. As a result, the second transmission gear 133 further reduces the rotational driving force transmitted from the first transmission gear 132 and transmits it to the drive gear 134.

[0020] The drive gear 134 is a gear in which a large diameter drive gear 134A, a small diameter drive gear 134B, and an umbrella gear 134C provided between the large diameter drive gear 134A and the small diameter drive gear 134B are integrally formed. is there.

The large-diameter drive gear 134A is engaged with the second small-diameter transmission gear 133B of the second transmission gear 133, and the rotational driving force from the loading motor 131 is transmitted.

[0022] The small-diameter drive gear 134B is an intermittent gear including a first intermittent portion 134D in which teeth are not formed in part. The small-diameter drive gear 134B is provided so as to be able to be engaged with the lock gear 135, and in a state where the small-diameter drive gear 134B and the lock gear 135 are engaged with each other, the rotational drive force such as the loading motor 131 force is generated. Is transmitted to. The small-diameter drive gear 134B and the mouth gear 135 are configured so that the gear of the lock gear 135 and the first intermittent portion are in the open state and the horizontal state where the cover member 200 opens the opening 112 according to the rotation state of the cover member 200. The drive force is not transmitted across the 134D. On the other hand, when the drive gear 134 is rotated clockwise and the lid member 200 is in the closed state in which the opening 112 is closed, the small-diameter drive gear 134B and the lock gear 135 are engaged, and the drive gear 134 is further rotated clockwise. By rotating, the rotational driving force is transmitted to the lock gear 135.

[0023] The bevel gear 134C is formed with a tapered surface inclined from the periphery of the large-diameter drive gear 134A toward the periphery of the small-diameter drive gear 134B, and the bevel gear is formed on the tapered surface. Yes. Further, the umbrella gear 134C includes a second intermittent portion 134E in which teeth are not formed on a part of the bevel gear. The umbrella gear 134C is provided so as to be meshed with the opening / closing transmission gear 136. When the umbrella gear 134C and the open / close transmission gear 136 are in the closed state and the locked state according to the rotation state of the lid member 200, the gear of the open / close transmission gear 136 and the second intermittent portion 134E face each other, Driving force is not transmitted. On the other hand, when the drive gear 134 rotates counterclockwise to be in the open state, the umbrella gear 134C and the opening / closing transmission gear 136 are engaged, and the driving force is transmitted to the opening / closing transmission gear 136, so that the lid member 200 Is rotated.

[0024] The lock gear 135 includes a small-diameter lock gear 135A having a small diameter dimension, and a large-diameter lock gear 135B having a large diameter dimension that is integrally formed with the small-diameter lock gear 135A. As described above, the small-diameter lock gear 135A receives the rotational driving force when engaged with the small-diameter driving gear 134B, and does not transmit the rotational driving force when the first intermittent portion 134D faces. Further, the large-diameter lock gear 135B is engaged with the lock arm 140 and transmits the rotational driving force transmitted from the drive gear 134 to the lock arm 140.

[0025] The open / close transmission gear 136 is a gear whose rotation shaft is provided in a direction substantially orthogonal to the axis of the drive gear 134. The open / close bevel gear 136A, which is a bevel gear, and the open / close bevel gear 136A And an open / close drive gear 136B integrally formed on the same axis. In the open / close transmission gear 136, the open / close bevel gear 136A meshes with the umbrella gear 134C of the drive gear 134 to transmit the rotational driving force.

[0026] As shown in FIG. 2, the lock arm 140 is formed in a substantially arc shape with the rotation axis of the turntable 123 as the center, and extends from the upper side wall 111C side of the casing 110 to the lower side wall 111D side. The left side wall 111 is curved and arranged on the A side. Inner teeth 141 are formed on the side edge of the arc of the lock arm 140 on the turntable 123 side, and a large-diameter lock gear 135B is engaged with the inner teeth 141. Further, the lock arm 140 is formed with a slide groove 142 that is long along the arc direction. The slide groove 142 is passed through a pin (not shown) provided in the housing 110 and restricts the movement range and movement direction of the lock arm 140. When the lock gear 135 rotates and the rotational driving force is transmitted, the lock arm 140 is moved along the slide groove 142, that is, along the arc of a predetermined diameter from the center of the turntable 123. Move the slide. In addition, a drive engagement pin 143 is formed at the end of the lower wall 11 ID side of the lock arm 140 so as to protrude toward the opening 112 side. The drive engagement pin 143 is provided so as to be engageable with a clamper lifting mechanism 240 as a clamp mechanism (described later) provided on the lid member 200. The drive engagement pin 143 does not engage with the clamper lifting / lowering mechanism 240 when in the open state and the horizontal state, and engages with the clamper lifting / lowering mechanism 240 when in the closed state and the locked state. When the lock gear 135 rotates while the drive engagement pin 143 is engaged with the clamper lifting mechanism 240, a driving force corresponding to the rotation direction is transmitted to the clamper lifting mechanism 240.

[0028] Further, a hook engaging portion 144 constituting a lock mechanism is formed at the end of the lock arm 140 on the upper wall 111C side. The hook locking portion 144 includes a locking surface 144A that is wide on a surface parallel to the bottom 111 of the housing 110, and a notch-shaped hook insertion portion 144B provided on a part of the locking surface 144A. And. Further, on the surface of the locking surface 144A opposite to the opening 112, a hook penetration portion 144B force is formed in a tapered shape with a thickness dimension increasing toward the tip of the locking surface 144A. When the lid member 200 rotates to the main body 100 side and closes, the hook insertion portion 144B passes the claw portion 213A of the lock hook 213 constituting the lock mechanism described later to the back side of the lock arm 140. To do. Then, when the lock arm 140 slides counterclockwise by the rotation of the lock gear 135, the hook locking portion 144 is also slid, and the claw portion 213A of the lock hook 213 is locked by the locking surface 144A. At this time, since the bottom 111 side of the locking surface 144A is formed in a taper shape, when the lock arm 140 rotates counterclockwise, the lock hook 213 is strongly locked to the main body 100 side along the taper.

The lid member 200 includes a lid exterior 210, a lid opening / closing mechanism 220, a disk placement unit 230, a clamper lifting / lowering mechanism 240, a clamper 300, and the like.

The lid exterior 210 is a member that forms the outer peripheral surface of the lid member 200, and includes a substantially plate-shaped exterior surface 211 and an exterior side portion 212 that rises from the periphery of the exterior surface 211. A lid opening / closing mechanism 220 is provided at one end of the lid exterior 210, and a lock hook 213 for locking the lid member 200 to the main body 100 is provided at the other end. A disc confirmation window 211A formed of a transparent or translucent member is formed on a part of the exterior surface 211, and the presence or absence of the disc confirmation window 211A force disc can be confirmed. Also, provided at the other end of the lid exterior 210. The lock hook 213 is formed so as to project in a direction substantially orthogonal to the surface direction of the exterior surface 211, and the projection tip force is also directed outward to form the claw portion 213A. As described above, the lock hook 213 is passed through the hook penetration portion 144B of the lock arm 140 when the lid member 200 is rotated to be in the closed state, and further, the lock arm 140 is moved. The lid member 200 and the main body 100 are locked by the claw portion 213A being locked to the locking surface 144A.

[0031] In addition, a disk mounting portion 230 is fixed to the exterior side portion 212 at a position spaced apart from the exterior surface 211 by a predetermined distance, substantially parallel to the exterior surface 211. A clamper raising / lowering mechanism 240 and a clamper 300 as a clamper mechanism are interposed between the disk mounting portion 230 and the exterior surface 211.

The lid opening / closing mechanism 220 includes a rotation shaft (not shown) and a rotation gear 221. The pivot shaft is integrally provided at one end portion of the exterior side portion 212 of the lid exterior 210 and is formed to protrude outwardly. The rotation shaft is rotatably supported by a rotation hole formed in the lid mounting portion 113 of the housing 110. Note that the pivot shaft is not limited to being formed integrally with the exterior side portion 212, and may be formed by attaching a pin member to the exterior side portion 212, for example. Can be a rod-shaped member!

[0033] The rotating gear 221 is a substantially fan-shaped member provided integrally with the exterior surface 211, and a gear is formed along the arc of the fan. The gear of the rotation gear 221 is meshed with the opening / closing drive gear 136B of the opening / closing transmission gear 136, and the lid member 200 is rotated by the driving force transmitted from the opening / closing transmission gear 136.

[0034] As described above, the disk mounting portion 230 is fixed to the exterior side portion 212 of the lid exterior 210. As shown in FIG. 4, the disk mounting portion 230 has a circular concave disk mounting surface 231 corresponding to the optical disk 20. Further, a clamper through hole portion 232 in which the clamper 300 can advance and retreat is formed at the center position of the disc mounting surface 231. Further, on the periphery of the clamper through hole 232, a cylindrical clamper holding part 233 extending toward the exterior surface 211 and a disk mounting surface 231 at the center of the clamper through hole 232 are provided. And a clamper pressing portion 234 extending on the same plane.

[0035] The clamper holding portion 233 is provided from the lid exterior 210 to the disk mounting surface 231, and is formed with a clamper lifting groove 233A that connects the cylinder inner peripheral surface and the cylinder outer peripheral surface. This clan The raised / lowered groove 233A includes an unclamped groove 233B, a clamper raised / lowered groove 233C, a clamped groove 233D, and an idler 233E. The non-clamped groove portion 233B is a groove portion provided closest to the lid exterior 210 in the clamper lifting groove 233A. The non-clamped groove 233B may be provided adjacent to the lid exterior 210. The clamp raising / lowering groove portion 233C is a groove extending spirally in the counterclockwise direction from the non-clamping groove portion 233B toward the disk mounting surface 231. The clamp state groove 233D is a portion that is provided at an end of the clamp lift state groove 233C and is closest to the disk mounting surface 231. The play portion 233E is a groove that spirally extends in the counterclockwise direction by urging in a direction away from the disk placement surface 231. Note that the play portion 233E is a groove portion that is formed to prevent breakage when a clamper elevating cam 270, which will be described later, rotates too much, and the play portion 233E may not be provided. A clamper raising / lowering cam 270, which will be described later, is engaged with the clamper raising / lowering groove 233A, and is moved from the non-clamped state groove 233B to the clamped state groove 233D. In other words, the clamper lifting groove 233A moves the clamper lifting cam 270 from the disk mounting surface 231 by the axial distance (lifting distance a) of the clamper holding portion 233 from the unclamped groove portion 233B to the clamped groove portion 233D. Move forward and backward

[0036] In addition, the disc mounting portion 230 is formed with a short disc locking portion 235 and a long disc locking portion 236 as a plurality of claw members along the periphery of the disc mounting surface 231. The short disc locking portion 235 is provided on the lid opening / closing mechanism 220 side, that is, vertically below in the closed state with respect to the diameter portion connecting the left and right end points of the disc mounting surface 231. The short disk locking portion 235 is formed to extend by a predetermined dimension in the direction toward the center of the disk mounting surface 231. Here, the predetermined dimension is a dimension that can prevent the optical disk 20 from being dropped when the lid member 200 is rotated and tilted. Further, the disk mounting surface 231 side of the short disk locking portion 235 is formed in a taper shape in which the distance from the disk mounting surface 231 increases as it moves toward the center of the disk mounting surface 231. RU

[0037] The long disk locking portion 236 is provided on the lock hook 213 side, that is, on the vertical upper side in the closed state from the diameter portion connecting the left and right end points of the disk mounting surface 231. This long disk locking portion 236 is similar to the short disk locking portion 235 in the periphery of the disk mounting surface 231. The force is also formed extending toward the center of the disc mounting surface 231 by a predetermined dimension. Here, the extended length dimension of the long disk locking portion 236 is set to be longer than the length dimension of the short disk locking portion 235. Further, the long disk locking portion 236 extends slightly toward the turntable 123 from the periphery of the optical disk 20 when the lid member 200 is locked and the optical disk 20 is held by the turntable 123. It is formed to the possible length dimension. Further, on the side of the disk mounting surface 231 of the long disk locking portion 236, the distance from the disk mounting surface 231 is increased according to the directional force toward the center of the disk mounting surface 231, similarly to the short disk locking portion 235. It is formed in a tapered shape.

Further, an engagement pin through groove 237 is formed at the end of the disc mounting portion 230 on the rotating shaft side. The engagement pin insertion groove 237 is formed on the outer side of the peripheral edge of the disk mounting surface 231 so as to substantially open along the peripheral edge. Further, an opening window 238 is formed at a position opposite to the disk confirmation window 211A of the lid outer cover 210 of the disk placement unit 230. When the disk is closed, the disk confirmation window 211A and the opening window 238 are opened from the outside. It is possible to check whether or not the optical disk 20 is stored.

The clamper lifting mechanism 240 includes a clamper driving gear 250, a drive transmission gear 260, a clamper lifting cam 270, and the like. As described above, these clamper lifting mechanisms 240 are provided between the lid outer casing 210 and the disk mounting portion 230.

The clamper drive gear 250 is provided on the rotating shaft side of the lid member 200, and is formed in a long arch shape along the periphery of the disk mounting surface 231. The clamper driving gear 250 is formed with a movement restricting groove 251 substantially along the outer peripheral edge of the disk mounting surface 231. In addition, a drive gear movement restriction pin 239 that protrudes from the disk mounting portion 230 toward the exterior surface 211 side is passed through the movement restriction groove 251. As a result, the movement range of the clamper driving gear 250 is restricted to a predetermined range along the outer peripheral edge of the disk mounting surface 231. Further, the clamper driving gear 250 is provided with a pin engaging portion 252 at a position facing the engaging pin insertion groove 237 of the disc mounting portion 230. As shown in FIGS. 4 to 7, the pin engaging portion 252 is engaged with an engaging pin locking surface 252A facing the engaging pin insertion groove 237 and from the engaging pin locking surface 252A. And two engaging pin locking walls 252B that rise from the mating pin insertion groove 237. Two engagement pin locking walls 252B They are provided opposite to each other in the longitudinal direction. When the lid member 200 is closed, the driving engagement pin 144 of the lock arm 140 inserted into the engagement pin insertion groove 237 of the disk mounting portion 230 is engaged. At this time, the drive engagement pin 143 is passed between the engagement pin locking walls 25 2B facing each other, and when the lock arm 140 moves, the drive engagement pin 143 is moved to the two engagement pin locking walls 252B. By pressing one of them in the moving direction, the clamper drive gear 250 is also driven. A gear 253 is formed on the inner peripheral side of the clamper drive gear 250, that is, on the clamper 300 side, and meshed with the drive transmission gear 260.

[0041] The drive transmission gear 260 is a gear provided between the clamper drive gear 250 and the clamper lifting cam 270, and transmits a driving force from the drive transmission gear 260 to the clamper lifting cam 270. In the drive transmission gear 260, the gear portion on the outer peripheral surface is formed to have at least a dimension equal to or greater than the above-described lifting distance a.

The clamper elevating cam 270 is provided with a cam body 271, a cam drive gear 272 provided on the outer peripheral surface of the cam body 271, and a clamper mounting piece 273 provided on the inner peripheral surface of the cam body 271. Yes. The cam drive gear 272 is a plate member formed in a ring shape. The inner peripheral side of the cam drive gear 272 is formed in a cylindrical shape whose inner peripheral surface is in sliding contact with the outer peripheral surface of the clamper holding portion 233. The cam drive gear 272 is formed on the outer peripheral surface of the cam body 271 and has a predetermined thickness dimension in the ascending / descending direction of the clamper 300, that is, in the direction orthogonal to the disk mounting surface 231. The cam drive gear 272 is engaged with the drive transmission gear 260, and the drive force from the drive transmission gear 260 is transmitted. The clamper mounting piece 273 is formed to project from the end of the inner peripheral surface of the cam body 271 toward the center from the end portion on the lid exterior 210 side. The clamper mounting pieces 273 are formed in the same number as the number of clamper lifting grooves 233A of the clamper holding portion 233, and each of the clamper mounting pieces 273 is inserted into the clamper lifting grooves 233A. The clamper mounting piece 273 is formed larger than the thickness dimension of the clamper holding portion 233, and the protruding tip protrudes toward the inner peripheral surface of the clamper holding portion 233.

4 to 7, when the clamper elevating cam 270 rotates clockwise by driving the drive transmission gear 260, the clamper mounting piece 273 moves along the clamper elevating groove 233A and is in a non-clamper state. It moves from the groove 233B to the clamper state groove part 233D through the clamper up / down state groove part 233C. Move to placement surface 231 side. At this time, as described above, since the drive transmission gear 260 is formed to have a thickness dimension equal to or greater than the lifting distance α, the cam drive gear 272 is always engaged with the drive transmission gear 260 and the drive force is transmitted from the drive transmission gear 260. Is done.

The clamper 300 is provided between the clamper mounting piece 273 and the clamper pressing unit 234 in the clamper holding unit 233. As shown in FIGS. 2 to 7, the clamper 300 is formed in a substantially container shape having an opening on the lid exterior 210 side, a disc clamp portion 310 provided on the disc placement surface 231 side, and an outer peripheral edge of the disc clamp portion 310. A cylindrical portion 320 extending toward the lid exterior 210 and a flange portion 330 extending in the radial direction also on the lid exterior 210 side end portion of the cylindrical portion 320 are provided. Here, the cylindrical portion 320 is formed to be smaller than the opening diameter of the clamper pressing portion 234 of the disc mounting surface 231. Further, the diameter of the outer peripheral edge of the flange portion 330 is formed to be larger than the opening diameter of the clamper pressing portion 234. As a result, the clamper 300 moves up and down, so that the disc clamp part 310 can advance and retreat from the clamper through hole part 232. Further, the side surface of the lid exterior 210 abuts on the clamper placing piece 273, and the flange portion 330 moves in the up-and-down direction of the clamper 300 when the clamper lifting cam 270 moves in the up-and-down direction. As a result, the disc clamp portion 310 of the clamper 300 advances and retreats from the clamper through hole portion 232.

Further, a concave portion 311 corresponding to the taper shape of the center hole engaging portion 123 の of the turn tape nose 123 is formed at the center of the disc clamp portion 310 of the clamper 300, and further, at the center of the concave portion 311. A clamper pin 312 that can be engaged with the clamper hole 123C is formed. In addition, the disc clamp 310 is provided with a magnet having a magnetic pole opposite to the magnet provided in the center hole engaging portion 123B. When the optical disc 20 is clamped, the center hole engaging portion 123B is strengthened. Engaged.

[Operation of Disk Device]

Next, as an operation of the disk device 10 of the recording / reproducing apparatus 1, a clamp operation of the optical disk 20 will be described with reference to FIG. 3 and FIGS. FIG. 10 is a cross-sectional view schematically showing a side cross section of the disk device when the optical disk is placed. FIG. 11 is a cross-sectional view schematically showing a side cross section of the disk device at the time of ejection.

[0047] (Clamping operation) The operation of the disk device 10 when the optical disk 20 is stored in the disk device 10 will be described. First, when the disk device 10 recognizes a processing signal indicating that the lid member 200 is rotated to be opened by a user operation input, a predetermined amount of current is supplied to the control circuit force loading motor 131. . Thus, when the loading motor 131 is rotationally driven, the rotational driving force is transmitted to the rotary gear 221 via the first and second transmission gears 132 and 133, the drive gear 134, and the open / close transmission gear 136, and the lid member 200 is rotated to a horizontal state as shown in FIG. At this time, the rotation direction of the loading motor 131 is controlled so that the drive gear 134 rotates counterclockwise.

Thereafter, as shown in FIG. 10, the optical disc 20 is placed on the disc placement surface 231 of the disc placement portion 230 by the user. At this time, as shown in FIG. 10, the optical disk 20 is placed on the disk mounting surface 231 in contact with the wall on the rotating shaft side, so that the optical disk 20 is pulled by the long disk locking portion 236. There is no applied force and it can be easily placed. Then, for example, when the information indicating that the lid member 200 is closed by the user's input operation is recognized, the control circuit unit of the disk device 10 supplies a predetermined current to the loading motor 131 again. At this time, the control circuit unit controls the rotation direction of the loading motor 131 so that the drive gear 134 rotates in the clockwise direction. As a result, the umbrella gear 134C and the opening / closing umbrella gear 136A are engaged with each other, the opening / closing transmission gear 136 is rotationally driven, the rotation gear 221 is drawn into the main body 100, and the lid member 200 is also rotated toward the main body 100. At this time, the drive engagement pin 143 of the lock arm 140 is passed through the engagement pin passage groove 237 of the disk mounting portion 230 and is engaged with the pin engagement portion 252 of the clamper drive gear 250. Further, in this closed state, the claw portion 213A of the lock hook 213 of the lid exterior 210 is passed through the hook penetration portion 144B of the lock arm 140.

[0049] Then, when the second intermittent portion 134E moves to a position facing the open / close umbrella gear 136A by the rotation of the drive gear 134, the rotation of the lid member 200 is stopped and the closed state is established. When the drive gear 134 is further rotated in this state, the small-diameter drive gear 134B and the small-diameter lock gear 135A are engaged, and the lock gear 135 is rotated counterclockwise. As a result, the driving force is transmitted from the large-diameter lock gear 135B to the internal teeth 141, and the lock arm 140 slides in the counterclockwise direction. By the movement of the lock arm 140, the hook locking portion 144 also slides in the counterclockwise direction, and the claw portion 213A of the lock hook 213 is locked to the locking surface 144A, so that the lid member 200 Force S Locked (locked state).

[0050] When the drive engagement pin 143 is pushed into the pin engagement portion 252 by the movement of the lock arm 140, the clamper drive gear 250 also moves in the counterclockwise direction along the outer peripheral edge of the disk placement surface 231. To do. As a result, the drive transmission gear 260 meshing with the gear 253 of the clamper drive gear 250 rotates counterclockwise, and the cam drive gear 272 also rotates clockwise. Since the cam main body 271 and the clamper mounting piece 273 are also rotated clockwise by the rotation of the force driving gear 272, the clamper mounting piece 273 is moved along the clamper lifting groove 233A of the clamper holding portion 233 from the non-clamper state groove portion 233B. It moves to the clamper state groove 233D through the clamper lift state groove 233C. Accordingly, the clamper lifting cam 270 moves to the disk mounting surface 231 side along the lifting direction, and the clamper 300 abutted on the clamper mounting piece 273 also moves to the disk mounting surface 231 side. Then, the disc clamp portion 310 force of the clamper 300 protrudes from the S clamper through hole portion 232 toward the disc placement surface 231, and the optical disc 20 is pressed against the turntable 123.

[0051] In the optical disc 20 pressed against the turntable 123, the center hole 21 is held on the tapered surface of the center hole engaging portion 123B of the turntable 123. Further, the disk clamp 310 is brought into contact with the turntable 123 by the attractive force of the magnet of the disk clamp 310 of the clamper 300 and the magnet of the turntable 123. Further, the concave portion 311 of the disc clamp portion 310 of the clamp 300 is engaged with the center hole engaging portion 123B, the clamper pin 312 is locked to the clamper hole portion 123C, and the optical disc 20 is securely clamped to the turn table 123. The

[0052] Thereafter, the control circuit unit performs information processing of the optical disk 20 in the information processing unit 124 based on the operation input of the user.

[0053] (Eject operation)

Next, the ejection operation of the optical disk 20 of the disk device 10 will be described. When the control circuit unit of the disk device 10 recognizes an eject command, for example, by a user setting input, the information processing operation by the information processing unit 124 is terminated. Then, the control circuit unit applies a predetermined current to the loading motor 131 and rotates the loading motor 131 so that the drive gear 134 rotates counterclockwise. As a result, the lock arm 140 Slides clockwise and the locked state is released. Further, the movement of the drive engagement pin 143 also moves the clamper drive gear 250 in the clockwise direction, and the clamper lifting cam 270 rotates counterclockwise and is moved to the lid exterior 210 side.

[0054] When the drive gear 134 is further rotated counterclockwise, the small-diameter lock gear 135A and the first intermittent portion 134D face each other and the movement of the lock arm 140 is stopped. On the other hand, when the umbrella gear 134C is engaged with the opening / closing umbrella gear 136A of the opening / closing transmission gear 136 and the rotational driving force is transmitted, the lid member 200 rotates in a direction away from the main body 100.

Here, in a state before the lid member 200 is rotated, the state in which the clamper 300 and the turntable 123 are engaged with the attractive force of the magnet is maintained. Then, when the drive gear 134 rotates counterclockwise as described above, the umbrella gear 134C and the open / close umbrella gear 136A mesh, and the lid member 200 rotates, as shown in FIG. The optical disc 20 and the clamper 300 are peeled off from the turntable 123 almost simultaneously. That is, as the lid member 200 is rotated, the peripheral edge of the optical disk 20 is pulled in the rotating direction of the lid member 200 by the long disk locking portion 236 and is peeled off. In the clamper 300, the flange 330 is pulled in the rotating direction of the lid member 200 by the clamper pressing portion 234, and is peeled off. The optical disk 20 that has been peeled off moves to the vertical lower side of the disk mounting surface 231 by its own weight and is held by the short disk locking portion 235. Then, when the lid member 200 rotates and becomes horizontal, the optical disk 20 can be taken out.

[Effect of disk device]

As described above, in the disk device 10 of the above-described embodiment, the disk mounting unit 230 for mounting the optical disk 20 is provided on the lid member 200 that is rotatable with respect to the main body 100 on which the turntable 123 is provided. When the lid member 200 is turned to the main body 100 side to close the opening 112, the optical disk 20 is pressed against the turntable 123 side by the clamper lifting mechanism 240. For this reason, the optical disc 20 is securely held by being pressed against the center hole engaging portion 123B of the turntable 123 by the clamper lifting mechanism 240. Accordingly, it is possible to prevent a chuck error such as a manual disk chuck.

In addition, the clamper lifting cam 270 moves the clamper 300 toward the turntable 123 and clamps the optical disk 20 between the turntable 123 and the clamper 300. . Therefore, the clamper 300 can reliably hold the optical disc 20 on the turntable 123 as described above, and at the same time, the optical disc 20 can be clamped on the turntable 123 and held rotatably.

In addition, the clamper 300 clamps the optical disk 20 by engaging the concave portion 311 with the center hole engaging portion 123B of the turntable 123 and further locking the clamper pin 312 with the clamper hole portion 123C. . For this reason, the optical disk 20 can be clamped to the turntable 123 more reliably.

[0059] Further, the clamper 300 and the turntable 123 include different magnets, and are engaged by the magnetic force of these magnets. For this reason, the engagement force of the clamper 300 with the turntable 123 can be further increased, and the optical disc 20 can be clamped more reliably.

Further, a hook engaging portion 144 for locking the lock hook 213 of the lid member 200 is provided at one end portion of the lock arm 140. For this reason, in a state where the lid member 200 is securely locked to the main body 100, the optical disc 20 can be pressed and clamped against the turntable 123 side, while preventing rattling such as vibration of the lid member 200. Therefore, the vibration of the optical disk 20 can be prevented. Therefore, the optical disk 20 can be reliably clamped by the turntable 123.

[0061] Sarakuko, the lock arm 140 has a clamper lifting mechanism 240 when the lid member 200 is rotated to the main body 100 side at the other end opposite to the one end where the hook locking portion 144 is provided. A drive engagement pin 143 that is locked to the clamper drive gear 250 is provided. Therefore, the movement of the lock arm 140 can drive the clamper driving gear and the clamper lifting cam 270, and the optical disk 20 can be clamped to the turntable 123. Therefore, it is possible to complete both operations with the same driving force as the driving force of the same driving source, which does not require the independent configuration of the lock of the lid member 200 and the clamp of the optical disc 20. The configuration of the device 10 can also be simplified. Further, since the locking operation of the lid member 200 and the clamping operation of the optical disk 20 can be performed in synchronization, the time until the information processing operation of the optical disk 20 can be shortened.

[0062] At the periphery of the disc mounting surface 231, the left and right ends of the optical disc 20 in the closed state A short disk locking portion 235 disposed vertically below the point, and a long disk locking portion 236 disposed vertically above the left and right end points of the disk mounting surface 231 in the closed state. For this reason, the optical disc 20 can be held from these disc locking portions 235 and 236 so as not to fall from the disc mounting surface 231. Further, since the disk engaging portions 235 and 236 are provided vertically above and below the disk mounting surface 231 in the closed state, the optical disk 20 can be prevented from dropping from the disk mounting surface 231.

Further, the long disk locking portion 236 is formed so as to protrude toward the center of the optical disk 20 from the peripheral edge of the optical disk 20 clamped by the turntable 123. For this reason, when the lid member 200 is rotated from the closed state to the open state, the periphery of the optical disk 20 is hooked by the long disk locking portion 236 and returned to the disk mounting surface 231 side, so that the short type It can be held by the disc locking portion 235. Therefore, the clamp state of the optical disk 20 can be released satisfactorily without the optical disk 20 falling when the lid member 200 is opened. At this time, the flange portion 330 of the clamper 300 is also caught by the clamp holding portion 234 of the disk placing portion 230 and is peeled off from the turntable 123. For this reason, the optical disk 20 can be peeled off and the clamper 300 can be peeled off simultaneously, so that the clamped state of the optical disk 20 can be released more favorably.

[Modification of Embodiment]

The present invention is not limited to the above-described embodiment, but includes the following modifications as long as the object of the present invention can be achieved.

That is, as described above, the device provided with the disk device 10 is not limited to the recording / reproducing device 1, but a DVD—RZRW (Digital Versatile Disc-Recordable I Rewritable) drive mounted on a personal computer or the like. Disk devices such as single-drive DV D players, CD players, portable DVD players, and portable CD players. In addition, the recording medium driven by the disk device 10 is not limited to a DVD (Digital Versatile Disc), and the optical disk 20 such as a CD (Compact Disc), an MD (Mini Disc), or a BD (Blu-ray Disc: Blu-ray Disc). Yes.

In the above embodiment, an example in which the main body 100 is installed vertically with respect to the recording / reproducing apparatus 1 has been described. However, for example, the main body 100 may be installed horizontally on the upper surface of the recording / reproducing apparatus 1. further, A force indicating a configuration in which the lid member 200 is pivotably provided below the housing 110 and the lid member 200 is horizontal when opened. For example, the lid member 200 is provided at the left end of the housing 110 and opens to the left side. Also good. Even in this case, the short disk locking part is provided on the vertical lower side of the clamper, and the long disk locking part is provided on the vertical upper side of the clamper, so that the disk can be securely held and the lid member can be opened and closed. Can do.

Further, in the above embodiment, the force shown in the configuration for clamping the optical disk 20 by the clamper 300 and the turntable 123 is not limited to this. For example, the center hole engaging portion 123B of the turntable 123 includes an engaging claw for locking the center hole 21 of the optical disc 20, and after the optical disc 20 is held, the engaging claw protrudes toward the center hole 21 and is clamped. A so-called self-chucking configuration may be used. In such a configuration, the clamper mounting piece 273 of the clamper raising / lowering cam 270 is provided with a pushing member that pushes the optical disc 20 toward the turntable 123, for example. Then, the optical disk 20 is pressed against the turntable 123 side by the pushing member moved by the clamp lift cam 270, and is locked by the engaging claw of the turntable 123 and clamped. Even with such a configuration, the optical disk 20 can be pressed against the turntable 123 and securely clamped.

[0068] Further, the force showing the configuration in which the lock arm 140 for locking the lid member 200 is provided on the main body 100 side is not limited to this. For example, the lid member 200 may have a configuration in which a lock arm is provided. In this configuration, for example, when the lid member 200 is rotated toward the main body 100, the lock arm and the lock gear are engaged, and the lid member 200 is engaged with the lock member provided on the main body 100 to lock the lid member 200. Further, by engaging the lock arm and the clamper drive gear 250, both the lock operation of the lid member 200 and the clamp operation of the optical disc 20 can be driven by the lock arm.

Furthermore, in the above-described embodiment, an example in which the movement operation of the lock arm 140 is performed after the rotation operation of the lid member 200 is shown, but the present invention is not limited to this. In other words, the rotation operation of the lid member 200 may be configured to simultaneously perform the movement operation of the arm lock. For this purpose, the formation timing of the small-diameter drive gear 134B and the umbrella gear 134C is shifted to shift the movement timing of the lock arm 140. With this configuration, for example, the lid member 200 can be It is possible to control an operation such as the movement of the lock arm 140 at the same time as the drive engagement pin 143 engages with the pin engagement portion 252 by rotating to the 0 side. With such a configuration, the clamping operation and the ejecting operation of the optical disc 20 can be further accelerated.

[0070] In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like as long as the object of the present invention can be achieved.

[Effects of Embodiment]

In the disk device 10 of the above-described embodiment, the disk mounting portion 230 for mounting the optical disk 20 is provided on the lid member 200 that is rotatable with respect to the main body 100 on which the turntable 123 is provided, and the lid member 200 is the main body. When it is turned to the 100 side and closed, the optical disk 20 is pressed against the turntable 123 by the clamper lifting mechanism 240. For this reason, the optical disc 20 is securely pressed against and held by the center hole engaging portion 123B of the turntable 123 by the clamper lifting mechanism 240. Therefore, it is possible to prevent damage to the optical disk or chuck error caused by excessive force, such as a manual disk chuck. Industrial applicability

The present invention can be used for a recording medium driving device that drives a disk-shaped recording medium.

Claims

The scope of the claims

[1] A main body having an opening and having a holding portion for holding a disc-shaped recording medium facing the opening;

A lid member rotatably provided on the main body;

An opening / closing drive for rotating the lid member to open and close the opening;

A clamping mechanism that presses and clamps the recording medium against the lid member side force in the state in which the lid member is rotated toward the main body by the opening / closing drive unit. Recording medium driving device.

[2] The recording medium driving device according to claim 1,

The holding portion includes an engaging claw that can engage with the recording medium,

The clamp mechanism clamps the recording medium by pressing the recording medium against the holding portion and engaging the engaging claws.

A recording medium driving apparatus characterized by the above.

[3] The recording medium driving device according to claim 1,

The lid member includes a clamper that holds the recording medium together with the holding unit,

The clamp mechanism clamps the recording medium by pressing the recording medium against the holding unit and holding the recording medium between the clamper and the precursor holding unit.

A recording medium driving apparatus characterized by the above.

[4] The recording medium driving device according to any one of claims 1 to 3 and claim 3,

A capping mechanism is provided for locking the lid member to the main body when the lid member is rotated toward the main body.

A recording medium driving apparatus characterized by the above.

[5] The recording medium driving device according to claim 4,

The lock mechanism is provided on the main body, and is provided so as to be engageable with the clamp mechanism when the lid member rotates to the main body side.

A recording medium driving apparatus characterized by the above.

[6] The recording medium driving device according to claim 4, The lock mechanism is provided on the lid member and is engagable with the clamp mechanism.

A recording medium driving apparatus characterized by the above.

[7] The recording medium driving device according to any one of claims 1 to 6 and claim 6,

A coupling arm that is engaged with both the opening / closing drive unit and the clamp mechanism and that transmits the driving force of either the opening / closing drive unit or the clamp mechanism to the other is provided.

A recording medium driving apparatus characterized by the above.

[8] The recording medium driving device according to any one of claims 1 to 7 and claim 7,

The lid member includes a claw member that holds the recording medium.

A recording medium driving apparatus characterized by the above.

[9] The recording medium driving device according to claim 8,

The claw members are respectively provided above and below in the vertical direction across at least the holding portion of the recording medium in a state where the lid member is arranged in the vertical direction.

A recording medium driving apparatus characterized by the above.

[10] The recording medium driving device according to claim 9,

The claw member provided on the vertical upper side is formed so as to protrude in the center direction of the lid member than the claw portion provided on the vertical lower side!

A recording medium driving apparatus characterized by the above.