JP2006228290A - Recording and reproducing device for disk-shaped recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely operate a cover opening-and-closing mechanism of a recording-and-reproducing device for a disk-shaped recording medium with a simple structure. <P>SOLUTION: A rotation shaft 55, which erects, a slide member 48 having a stopper pawl of a cover opening-and-closing mechanism provided on a recording-and-reproducing device main body side, the stopper nail engaging with a lock pawl provided on a disk cover, and a rotation lever 49 which restricts the sliding position of the slide member 48 to a prescribed position on a base plate 51, comprises two components, that is, a caulking shaft 55a and an intermediate shaft 55b to form a prescribe gap both with the flange part 55-1 of the caulking shaft 55a and with the flange part 55-4 of the intermediate shaft 55b. Accordingly, when the shaft part 55-5 of the calking shaft 55a is calked to fix it to the base plate 51, the deformation of the member due to the calking force does not interfere the rotational operation of the rotation lever 49. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording / reproducing apparatus for a disc-shaped recording medium provided with a lid opening / closing mechanism for locking and unlocking a disk lid attached to an exterior case so as to be freely opened and closed.

When recording on a small-diameter disk-shaped recording medium such as a CD (Compact Disc), an MD (Mini Disc), or a DVD (Digital Versatile Disc), the recorded data can be easily accessed during playback. For this purpose, for example, after recording content data such as music data, a TOC (Table Of Contents) for the content data is recorded in the inner peripheral area (lead-in) area of the disc-shaped recording medium.
For this reason, in a recording / reproducing apparatus for a disk-shaped recording medium, not only during recording of content data such as music data on a small-diameter disk-shaped recording medium, but also taking out the disk-shaped recording medium for a while after recording the music data, etc. A disk lid locking mechanism is provided so that the above operation cannot be performed.
This locking mechanism is composed of a locking claw and a locked claw provided on a disc lid and an exterior equipped with a recording / reproducing function, and these are mechanically engaged so as to be in a locked state or an unlocked state. Made. Here, the mechanical operation at the time of engagement can be restricted by an electric signal, and after the recording of the content data and the TOC data, this mechanical operation is validated and the unlocked state of the disc cover is realized.

  As a conventional recording / reproducing apparatus, for example, there is one described in Patent Document 1. Patent Document 1 relates to a disc recording / reproducing device such as a clutch mechanism, a lock mechanism with a clutch mechanism, a storage device having a case lid locking mechanism, and a portable mini disc (registered trademark) recorder having a case lid locking mechanism. It is disclosed. The clutch mechanism described in Patent Document 1 is arranged so as to overlap the mechanism base portion and one surface side of the mechanism base portion, and is supported by the mechanism base portion so as to be slidable in one direction. A lever and a second lever, and a clutch spring that connects the first lever and the second lever are provided. Further, the disk recording / reproducing apparatus described in Patent Document 1 is arranged so as to overlap a mechanism base portion and one surface side of the mechanism base portion, and is supported by the mechanism base portion so as to be slidable in one direction. A lock mechanism including a first lever and a second lever, a clutch spring that connects the first lever and the second lever, and a lock spring that connects the first lever or the second lever and the mechanism base; The upper cover of the case is locked by the lock mechanism.

And an open lever and a lock lever are arranged on the outside of the chassis outer frame (mechanism base part), and two long holes are formed in each of the open lever and the lock lever. The shaft inserted into the chassis outer frame through the long hole of the lock lever and the shaft inserted into the chassis outer frame through the long hole of the open lever are caulked so that the open lever and the lock lever are attached to the chassis outer frame. Supported. At this time, the caulking shaft is provided with a step, and the thinnest shaft portion is inserted into the chassis outer frame, and the protruding portion is plastically deformed and crushed and caulked. The operation restriction in the locked / unlocked state of the lock lever is performed by a brake lever that is electrically driven to rotate around the axis.
According to the clutch mechanism and the disk recording / reproducing apparatus having such a configuration, the number of parts and assembly man-hours of the clutch mechanism can be reduced, the manufacturing cost can be reduced, and the entire mechanism can be reduced in size and strength. Can be realized.
Japanese Patent Application Laid-Open No. 2004-176783 (2 pages, FIGS. 1 and 3)

  However, in the recording / reproducing apparatus described in Patent Document 1, since the open lever and the lock lever are fixedly supported by caulking to the chassis outer frame, they are relatively large so as not to disturb the sliding operation of the open lever and the lock lever. It is necessary to provide a gap in the thickness direction. When the open lever is operated to open and close the lid, there is a disadvantage that the feeling of operation is not good because of the gap due to the gap.

  In the previous application (Japanese Patent Application No. 2003-41804), the applicant of the present application has proposed an imaging apparatus including a lid opening / closing mechanism for locking and unlocking the disk lid. The earlier application relates to an image pickup apparatus having a lid opening / closing mechanism that locks and unlocks a disk lid that is attached to an exterior case so as to be freely opened and closed. This is an image pickup apparatus which is arranged in a region and enables downsizing and thinning of the apparatus.

The imaging device of this earlier application includes a table rotating device that rotationally drives a disk-shaped recording medium that is detachably mounted on a turntable, and at least a lens device for the disk-shaped recording medium that is rotationally driven by the table rotating device. A pickup device capable of recording an information signal of an image corresponding to the light of the subject input via the outer case, and an outer case having a disk storage portion in which the table rotation device and the pickup device are stored and the turntable is disposed, A disc lid attached to the exterior case so as to be openable and closable so as to cover the disc storage portion; a lid opening / closing mechanism that locks the disc lid with the disc storage portion closed and that can be unlocked; The lid opening / closing mechanism includes a lock claw attached to the disk lid, A stopper claw that can be engaged with and disengaged from the lock claw and supported by the outer case so as to be movable, and the stopper claw is a space in the vicinity of the table rotation device and the pickup device in the outer case. It is arranged in the area.
Here, the lid opening / closing mechanism is slidably supported by, for example, a base plate fixed to the exterior case, and has a slide member having a stopper claw, and the slide member can be locked and unlocked by the lock claw. A rotating lever, a motor assembly that moves the slide member to move the stopper claw away from the lock claw, and a coil spring that biases the stopper claw toward the lock claw.

  According to the imaging device according to this earlier application, a lock claw is attached to the disk lid, and the stopper claw is movably supported on the outer case, and the stopper claw is disposed in the vicinity of the table rotating device and the pickup device in the outer case. By arranging in the empty area, the empty area in the outer case that does not overlap with the disk drive device can be used effectively, and the outer case can be downsized to reduce the size and thickness of the entire imaging device. The lid opening / closing mechanism is composed of a slide member, a rotation lever, a motor assembly, and a coil spring, so that the lock claw and the stopper claw can be locked and unlocked easily and relatively easily. It can be done reliably.

However, even the lid opening / closing mechanism disclosed in this earlier application may cause a malfunction in operation after the rotation lever and the slide member are provided on the base plate.
That is, the rotating shaft 55 shown in FIG. 15B is configured so that the slide member having the stopper claw of the lid opening / closing mechanism is slidable and supports the rotating lever so as to be integrated with a head having a step. It is made up of different axes. The rotation lever 49 is formed with an insertion hole for the rotation shaft 55, the slide member 48 is formed with a long hole for sliding, and an insertion hole for standing the rotation shaft 55 on the base plate 51.
Then, as shown in FIG. 15A, the end of the rotation shaft 55 protruding from the other surface of the base plate 51 is inserted through the rotation shaft 55 so as to sandwich the slide member 48 between the rotation lever 49 and the base plate 51. The plastic shaft is deformed and crushed to fix the rotation shaft 55. For this reason, when the end portion is plastically deformed with a large force, a region to be crushed at the end portion of the rotating shaft 55 becomes large, the base plate 51 is deformed, the slide member 48 is also deformed, and only the sliding operation of the slide member 48 is performed. In addition, there is a possibility that the rotating operation of the rotating lever 49 may be hindered.

  In view of the above, the present invention proposes a recording / reproducing apparatus for a disc-shaped recording medium having an opening / closing mechanism that can reliably realize a locked state or an unlocked state of a lid relating to the attachment / detachment / storage of the disc-shaped recording medium at a low cost. To do.

  In order to solve the above problems, the present invention provides a table rotating device that rotationally drives a disk-shaped recording medium that is detachably mounted on a turntable, and information on the disk-shaped recording medium that is rotationally driven by the table rotating device. A pickup device that records or reproduces a signal, an outer case having the pickup device, a table rotating device, and a disk storage portion in which the turntable is disposed, and the outer case is attached to the outer case so as to open and close the disk storage portion. In a recording / reproducing apparatus for a disk-shaped recording medium, comprising: a disc lid; and a lid opening / closing mechanism that allows the disc lid to be in a locked state with the disc storage portion closed, and to release the locked state. The lid opening / closing mechanism includes a lock claw attached to the disc lid and a base fixed to the outer case. A plate, a slide member which is slidable by a guide pin provided on the base plate, and which has a stopper claw and an engagement piece, and a rotation which is arranged on the slide member and which is provided on the base plate and serves as a slide guide for the slide member The disc lid is unlocked when engaging the engagement piece and restricting the movement of the slide member, and the input portion is pressed and engaged by the lock claw. A rotating lever that releases the engagement of the piece and locks the disc lid by the lock claw, a motor assembly that moves the slide member to move the stopper claw away from the lock claw and is fixed to the base plate, and a stopper claw An engagement mechanism including a coil spring that urges in the direction of the lock state, and the lock claw is freely engageable and disengageable with the stopper claw. The shaft has a flange portion and a head portion having a rotating shaft portion of the rotating lever, and a shaft portion for fixing to the base plate, and the diameter of the rotating shaft portion is made slightly larger than the rotating hole diameter of the rotating lever. The slide shaft has a caulking shaft in which the length of the rotating shaft portion is larger than the thickness of the rotating lever, a through hole into which the shaft portion is inserted, and a flange portion, and is disposed between the caulking shaft and the base plate. The diameter of the sliding shaft is slightly larger than the width of the long hole of the slide member, and the length of the sliding shaft is larger than the thickness of the slide member. It is composed of an intermediate shaft.

  According to the recording / reproducing apparatus for a disc-shaped recording medium of the present invention configured as described above, the rotating lever is disposed between the flange portion of the intermediate shaft and the flange portion of the caulking shaft, and the caulking shaft is larger than the thickness of the rotating lever. Since the length of the rotation shaft portion is formed larger, the rotation lever can be smoothly rotated, and there is a gap between the rotation lever and the slide member by the thickness of the flange portion of the intermediate shaft. Thus, the operation of the rotating lever is not hindered by caulking of the end of the rotating shaft.

  The disc-shaped recording medium recording / reproducing apparatus according to the present invention has a two-component configuration in which the pivoting shaft of the pivoting lever has a simple shape when the lid is locked or unlocked when the disc-shaped recording medium is attached or detached. In addition to realizing a reliable rotation operation, the rotation lever and the slide member can be provided on the base plate by one caulking, so that the number of work steps can be reduced.

  Hereinafter, an example of the best mode for carrying out a recording / reproducing apparatus for a disk-shaped recording medium of the present invention will be described with reference to FIGS. In the following, FIGS. 1 to 14 will be described with the same reference numerals given to the portions corresponding to FIG.

As a recording / reproducing apparatus for the disk-shaped recording medium of this example, a DVD (Digital Versatile Disc) having a diameter of 8 cm is used as a specific example of a disk-shaped recording medium as an information storage medium, and an optical image is obtained by a CCD (solid-state image sensor). An image pickup apparatus (hereinafter referred to as “disk type image pickup apparatus”) that can be converted into an electrical signal and recorded on a DVD or displayed on a display device such as a liquid crystal monitor will be described as an example.
The disc-shaped recording medium of the present invention is not limited to a DVD, and a CD-ROM or other recordable optical disc can be used, for example, a magneto-optical disc, a magnetic disc, etc. As described above, a disc-shaped recording medium of another recording method can be applied.

  The disc type imaging device of this example performs a drive control of the disc drive device and the like, and a disc drive device for recording (writing) and reproducing (reading) information signals by rotationally driving a detachably mounted DVD. A control circuit (not shown), a lens device that captures an image of a subject as light and guides it to the CCD, an outer case in which these disk drive devices and the like are stored, and a rotatable attachment to the outer case to open and close the disk storage unit It consists of a disc cover that can be freely covered.

First, the disk type imaging apparatus of this example will be described with reference to FIGS.
2 is an external perspective view of the disk-type imaging device as viewed from above the front. In FIG. 2, 1 is a disk-type imaging device, 4 is a lens device, 5 is an exterior case, 10 is a display device side panel, and 11 is a front panel. A panel, 12 is a rear panel, and 15 is an objective lens. Also, 16 is a viewfinder, 18 is an accessory shoe cap, 20 is a remote control light receiving unit, 21 is a terminal cover for external connection, 22 is a built-in microphone, 28 is rotatable, and a liquid crystal monitor 29 described later is provided inside. The display device 13 is a flash. Here, the display device side panel 10, the front panel 11, and the rear panel 12 constitute an outer case 5 on the outer surface of the disk type imaging apparatus 1 together with a disk side panel 8 and a center panel 9 described later.

3 is an external perspective view of the disk type image pickup device 1 as viewed from the back side opposite to that in FIG. 2. In FIG. 3, 7 is a disk lid, 8 is a disk side panel, 9 is a center panel, and 24 is a power battery. , 60 is a hand strap, 64 is a power switch, 67 is a photo button, 68 is a zoom lever, and 69 is a flash button. Here, the disk side panel 8 and the center panel 9 together with the display device side panel 10, the front panel 11, and the rear panel 12 constitute an exterior case 5.
4 is an external perspective view of the disk type imaging device 1 as viewed from the rear display device 28 side. In FIG. 4, 29 is a liquid crystal monitor, 30 is a panel case, 30a is a zoom button, 31 is a panel support, and Is a battery remaining amount confirmation display button.

FIG. 5 is an external perspective view of the disc type image pickup apparatus 1 when the accessory shoe cap 18 and the display device 28 are opened and seen from the front side of the disc lid 7. In FIG. 5, 17 is an active interface shoe, 47 is a lid opening switch, Reference numeral 43 denotes a holding grip portion constituted by the arc-shaped portions of the disc lid 7 and the disc side panel 8.
FIG. 6 is an external perspective view of the disc type imaging apparatus 1 as viewed from the bottom side of the back face with the display device 28 facing down. In FIG. 6, reference numeral 17c denotes a battery removal button.
7 shows a state in which the disc lid 7 of the disc type image pickup device 1 shown in FIG. 5 is opened, FIG. 7A is an external perspective view showing a state before the disc is mounted, and FIG. In the figure, 7a of the disk lid 7 is a flat surface part, 7b peripheral surface part, 7c is a rectangular part, 8a of the disk side panel 8 is a side surface part, and 8b is a peripheral part. Further, 35 is a table rotating device, 36 is a turntable, 39 is a lid rotating shaft portion, and 46a and 46b are lock claws.

As shown in FIGS. 2 and 3, the outer case 5 includes a disk side panel 8, a center panel 9, a display device side panel 10, and a lens device 4, which are combined so as to be overlapped in three layers. It consists of a front panel 11 and a rear panel 12 which are arranged and combined with these panels 8, 9 and 10, and a partition panel which does not appear in the figure and is arranged inside the central panel 9, and is hollow by these panels 8-12. The housing is configured.
Then, as shown in FIG. 7A showing the open state of the disk lid 7, the disk drive device 3 is elastically supported on the surface of the partition panel on the disk side panel 8 side via a mount insulator (not shown). These panels 8 to 12 are configured to be assembled and disassembled by an adhering means including a fixing screw at an appropriate portion overlapped with each other or through another member.

As shown in FIG. 2, the lens device 4 is fixed in a state of being built in the upper part of the exterior case 5, and the objective lens 15 penetrates the upper part of the front panel 11 forward and is exposed to the front surface. . In the exterior case 5, a CCD (not shown) is disposed behind the lens device 4, and a viewfinder 16 is disposed behind the CCD.
The viewfinder 16 is exposed at the upper part of the rear panel 12 of the outer case 5 and is configured to be movable forward and backward by a predetermined distance in the optical axis direction of the lens device 4 by a finder moving mechanism.

  Further, as shown in FIG. 2, a built-in microphone 22 capable of collecting sound in four-channel stereo is provided at the upper part of the outer case 5, and a space between the built-in microphone 22 and the viewfinder 16 is shown in FIG. In addition, an active interface shoe 17 to which accessories such as a video light and an external microphone are detachably attached is provided. The active interface shoe 17 is usually covered with an accessory shoe cap 18 made of a flexible resin.

  Further, as shown in FIG. 2, a flash 13 is provided on the front surface of the front panel 11 on the disk lid 7 side of the lens device 4 in order from the top, and on the lower side of the lens device 4 for remote control operation. A remote control light receiving unit 20 serving as a receiving unit and a microphone terminal are disposed below the remote control light receiving unit 20. The remote control light receiving unit 20 also serves as an infrared light emitting unit that emits infrared light used for automatically adjusting the focus. The microphone terminal includes a video terminal and an audio terminal, and these terminals are covered with a terminal cover 21 so as to be opened and closed.

  As shown in FIGS. 3 and 4, the rear panel 12 of the outer case 5 is provided with a battery housing portion 25 to which the power battery 24 is detachably attached. The battery housing 25 is opened at the back and bottom surfaces of the rear panel 12, and the power battery 24 can be taken out by inserting it from the rear and diagonally downward, and pulling it out in the same direction while pushing the battery eject button 170c shown in FIG. It is made like.

As shown in FIGS. 4 and 5, a display device 28 is attached to the display device side panel 10 of the outer case 5 so that the posture can be changed. The display device 28 includes a flat liquid crystal monitor 29, a panel case 30 in which the liquid crystal monitor 29 is accommodated, and a panel support portion 31 that supports the panel case 30 with respect to the exterior case 5 so that the posture can be changed. Has been.
The panel support unit 31 has a horizontal rotation function that allows the panel case 30 to be rotated about 90 degrees in the horizontal direction about the vertical axis, and the panel case 30 about 180 in the front-rear direction about the horizontal axis. It has a forward / backward rotation function that allows it to tilt freely. With this function, the display device 28 is in the storage state shown in FIGS. 2 and 3, the state in which the panel case 30 shown in FIG. 4 is rotated 90 degrees and the liquid crystal monitor 29 is opposed to the rear, and the state in FIG. A state in which the panel case 30 is rotated 180 degrees so that the liquid crystal monitor 29 is opposed to the front and a state in an intermediate position thereof can be arbitrarily taken.
Further, as shown in FIG. 4, the display device side panel 10 is provided with a battery remaining amount confirmation display button 34 that is covered with a panel case 30 so as to be opened and closed.

  As shown in FIGS. 7 and 8, the disk-side panel 8 of the outer case 5 is composed of a side surface portion 8a to which the disk lid 7 is attached and a peripheral edge portion 8b continuous so as to surround the outer edge of the side surface portion 8a. Yes. The disc storage portion 6 is opened on the front side of the side surface portion 8a. A portion from the substantially central portion of the upper surface of the disk side panel 8 to the bottom surface side through the front surface portion is formed in a frame shape having a substantially semicircular shape.

  The disk storage unit 6 includes a fixed area having an opening for exposing a part of the disk drive device 3, and in this embodiment, the disk storage unit 6 is formed as an area having a size corresponding to a disk-shaped recording medium having a diameter of 8 cm. Yes. A table rotation device 35 of the disk drive device 3 is arranged at a substantially central portion of the disk storage portion 6, and a turntable 36 positioned at the center portion has a diameter of 8 cm showing a specific example of the disk-shaped recording medium. DVD2 can be mounted. As shown in FIGS. 9 and 10, the table rotating device 35 is fixed to a mechanical chassis that is elastically supported by the partition panel described above.

  As shown in FIG. 7, the disk storage unit 6 in which the table rotating device 35 is disposed is covered with a disk lid 7 whose side surface is rotatably supported by the disk side panel 8 so as to be opened and closed. The disc lid 7 has a shape commensurate with the shape of the disc storage portion 6. The disc lid 7 has a flat surface 7 a that covers the opening side of the disc storage portion 6, and a continuous circumference over substantially the entire circumference of the outer peripheral edge of the flat surface portion 7 a. It has a surface portion 7b. The peripheral surface portion 7 b of the disc lid 7 is configured to fit with the outer peripheral side notch portion of the disc storage portion 6 of the disc side panel 8.

  The disk lid 7 shown in this embodiment has a shell shape in which approximately 5/6 (about 300 degrees) of the circumference of the outer peripheral edge is a circular shape, and the remaining portion is a square portion 7c formed of a straight line. A lid rotation shaft portion 39 serving as a rotation center for opening and closing the disk lid 7 is attached to the rectangular portion 7c. Although not shown, the lid rotation shaft portion 39 includes a support shaft that penetrates the rectangular portion 7c and a bearing member that has a pair of bearing pieces that support both ends of the support shaft in a fixed manner. The disk lid 7 is rotatably supported by being fixed to the panel 8. The lid rotation shaft portion 39 is provided with a stopper portion for setting a maximum opening angle (for example, 90 degrees) of the disc lid 7.

  Such a lid rotation shaft portion 39 is attached to the disk side panel 8 with the axial direction of the support shaft set in the vertical direction. As a result, the disc lid 7 is rotatably supported on the rear portion of the disc-side panel 8 via the lid rotation shaft portion 39. As a result, the disc cover 7 can be opened approximately 90 degrees to the side by front opening with the front of the disc type imaging device 1 as the front side. The lid rotation shaft portion 39 can stop the disc lid 7 at an arbitrary opening position within a certain opening angle range, and attach the disc lid 7 to the opening side when the opening angle is exceeded. A spring member is mounted so as to be biased.

The central panel 9 overlapped with the disk side panel 8 is continuous with the upper surface part 9a interposed between the upper surface part 8b of the disk side panel 8 and the display device side panel 10, and from the upper surface part 9a to the front side. It consists of a front part 8b and a front part 9b interposed between the front panel 11. A grip portion 43 for gripping and holding the disc type imaging device 1 is configured by the arc-shaped portions of the disc side panel 8 and the central portion panel 9.
A lid opening / closing mechanism for the disk lid 7 is disposed between the central panel 9 and the disk side panel 8. This lid opening / closing mechanism has a function of locking the disk lid 7 in a state of closing the disk storage portion 6 in the closed state and a function of releasing the lock. The lid opening / closing mechanism will be described in detail later.

Further, as shown in FIGS. 3, 5, and 6, a hand strap 60 is attached to the disk side panel 8 so as to surround the disk lid 7. The hand strap 60 supports the user's hand that holds the grip 43 (see FIG. 5), which is the grip of the outer case 5, and prevents the disc-type imaging device 1 from being removed.
The hand strap 60 includes a support belt 61 having both ends fixed to the disk side panel 8 and a protective pad 62 that is attached to the support belt 61 and abuts against the back of the user's hand. One end of the support belt 61 is connected to a mounting bracket 63 fixed to the front lower portion of the disk side panel 8, and the other end is inserted inside through a through hole provided in the rear middle part of the disk side panel 8. It is fixed to the mounting bracket attached to.

As shown in FIGS. 3 and 6, a power button 64, a mode switching dial 65, and a recording button 66 are arranged at the rear of the disk side panel 8. The mode switching dial 65 has a ring shape, and a power button 64 is accommodated in the hole. The power button 64 is composed of push-push type switch means, and the power supply from the power battery 24 is turned on and off by the pressing operation.
The mode switching dial 65 is for selecting an operation mode such as recording, and can be freely selected from three modes of “still image mode”, “moving image mode”, and “view / edit mode” by rotating the mode dial 65. Can be selected. The recording button 66 includes push-push type switch means, and the start and stop of moving image shooting are repeated by the pressing operation.

  Further, a shutter button 67 and a zoom lever 68 are disposed on the upper rear side of the disk side panel 8. The shutter button 67 is for photographing a still image, and one still image is photographed for each pressing operation by the pressing operation. The zoom lever 68 is for enlarging an image at the time of shooting or reproduction, and the magnification can be adjusted steplessly within a certain range according to the operation amount.

  For example, ABS (acrylonitrile, butadiene, styrene resin) is suitable as the material of the disk side panel 8, the center panel 9, the display device side panel 10, the front panel 11, and the rear panel 12 constituting the exterior case 5. is there. However, it is not limited to ABS, and other engineering plastics can be applied, and metals such as aluminum alloys other than synthetic resins can be used.

  Further, as described above, the interior of the exterior case 5 is partitioned in the left-right direction (direction intersecting the optical axis of the lens device 4) by the partition panel, whereby the first chamber on the disc lid 7 side and the display device. A second chamber on the side is formed. The partition panel is made of a plate-like member and is fastened and fixed inside the outer case 5 by a fixing screw. As the material of the partition panel, for example, stainless steel (SUS) is suitable, but it is possible to use steel steel, aluminum alloy and other metals, and engineering plastics other than metals can also be used.

  Although not shown, the disk drive device 3 is accommodated in the first chamber of the outer case 5, and the lens device 4 and the control circuit unit are accommodated in the second chamber. Therefore, a plurality of support protrusions for supporting the disk drive device 3 are provided on one surface side of the partition panel, and a plurality of support pieces for supporting the lens device 4 and the printed circuit board are provided on the other surface side. Is provided. The control circuit unit includes, for example, a microcomputer, a storage device (RAM, ROM), a capacitor, a resistor, and other electronic components, and a printed board on which these electronic components are mounted.

  As shown in FIGS. 10 and 11, the disk drive device 3 includes a mechanical chassis attached to the partition panel, a table rotating device 35 fixed to the mechanical chassis, and an optical pickup device showing a specific example of the pickup device. And so on. The mechanical chassis is formed of a conductive plate material, and is elastically supported by the partition panel via a plurality of mount insulators made of an elastic body made of an insulating material.

  The mechanical chassis attached to the partition panel via such an insulator is constituted by a frame-like member having a sufficiently large strength. The conductor portions of the mechanical chassis and the partition panel are electrically connected to each other by a grounding member (not shown), and are configured to easily discharge static electricity or the like to the outside. The table rotating device 35 mounted on the mechanical chassis includes a spindle motor fixed to the mechanical chassis and a turntable 36 fixed to the rotating portion of the spindle motor.

  The turntable 36 includes a fitting portion 36a into which the center hole of the DVD 2 is fitted, and a placement portion 36b on which the peripheral edge of the center hole is placed. Further, the fitting portion 36a of the turntable 36 is provided with a plurality of engaging claws 36c that are engaged with the peripheral portion of the center hole of the DVD 2 and hold the DVD 2 in the circumferential direction. Each engaging claw 36c is urged radially outward by a spring, and the DVD 2 is positioned and fixed to the fitting portion 36a by the spring force of the spring.

  Further, the optical pickup device includes a biaxial actuator having a pickup lens facing the information recording surface of the DVD 2 and a slide member on which the biaxial actuator is mounted. The slide member is guided by, for example, two guide shafts and is movable. The two guide shafts are parallel to each other across the spindle motor, and a pickup moving device is provided in the vicinity of one of the guide shafts.

  Although not shown, the pickup moving device includes a feed screw shaft that is engaged with a feed nut attached to the slide member, and a feed motor that uses the feed screw shaft as a rotating shaft. The feed screw shaft is set parallel to the guide shaft of the optical pickup device, and is rotatably supported by the mechanical chassis. Thus, by driving the feed motor and rotating the feed screw shaft, the optical pickup device selectively moves in a direction approaching the turntable 36 and a direction away from the turntable 36 according to the rotation direction of the feed screw shaft. Is done. The disk drive device 3 is constituted by the mechanical chassis, the table rotating device 35, the optical pickup device, the pickup moving device, and other related mechanisms.

  By fixing the partition panel to which the disk drive device 3 having such a configuration is attached to a predetermined position in the outer case 5, as shown in FIG. It is disposed in the disk storage portion 6 of the disk side panel 8. The disk storage 6 is opened and closed by a disk lid 7, and the disk lid 7 is locked and unlocked by a lid opening / closing mechanism.

  The lid opening / closing mechanism includes a lock member 46 fixed to the disk lid 7 and a lid opening / closing mechanism provided on the disk side panel 8, as shown in FIGS. 7, 9, 10 and the like. An operation member 47 slidably attached to a base plate 51 which is a member on the disk side panel 8 side, a slide member 48 and a rotation lever 49, a motor assembly 50 for moving the slide member 48 forward and backward, and a rotation lever 49 And a base plate 51 that supports the motor assembly 50.

  The lock member 46 includes a fixing portion for fixing to the disk lid 7 and a pair of lock claws 46a and 46b formed integrally and continuously with the fixing portion, and is formed of a sheet metal member. The pair of lock claws 46a and 46b are arranged at a predetermined interval from each other and are formed so as to rise from the fixed portion. The locking member 46 is configured integrally with the disc lid 7 by fixing the fixing portion to the tip portion farthest from the lid rotation shaft portion 39 on the inner surface of the disc lid 7. Further, the pair of lock claws 46a and 46b are arranged substantially in parallel with a predetermined gap between the pair of lock claws 46a and 46b and the peripheral surface portion 7b of the disc lid 7, and projecting sideways in the same direction at the respective tip portions. A buttocks is provided. In this embodiment, the flanges of the pair of lock claws 46a and 46b are formed so as to protrude downward.

  The operation member 47 is attached to the upper surface 8b of the disk side panel 8 so as to be slidable in the front-rear direction. The operating member 47 is slidably engaged in the long groove 52a of the upper surface portion 8b, and is integrally formed with the operating portion 47a and penetrates the upper surface portion 8b and protrudes into the first chamber. Arm portion 47b. A coil spring 53 is interposed between the arm portion 47 b of the operation member 47 and the upper surface portion 8 b of the disk side panel 8 in a compressed state. Due to the spring force of the coil spring 53, the operation member 47 is always biased to the front side, that is, the side where the lock member 46 is located. By moving the operation portion 47a rearward against the spring force of the coil spring 53, the lid opening / closing mechanism starts an opening operation as will be described later. Therefore, a detection switch 44 for detecting the opening operation of the operation member 47 is provided in the vicinity of the operation member 47.

The slide member 48 is provided with a pair of stopper claws 48a and 48b, a spring receiving piece 48d, an operation portion 48f, an operation convex portion 48g, and the like.
The stopper claws 48a and 48b are formed so as to rise in the same direction from the flat base portion of the slide member 48, and the operation portion 48f is lowered from the one end side of the base portion in the opposite direction to the stopper claws 48a and 48b. A pair of guide grooves 48c and 48c extending in the sliding direction of the slide member 48 are provided at the base.

Since the spring receiving piece 48d is used to provide a coil spring 56 between the spring receiving piece 49b of the rotating lever 49 described later, the edge of the base portion on the operating portion 48f side is raised to provide a hook-like portion, The convex portion 48g is provided so as to be engaged with an operation piece 87a of a detection switch 87 described later so as to protrude in an L shape from the base portion of the slide member 48.
The slide member 48 is also provided with a pair of guide grooves 48c and 48c, and a pair of guide pins 54a and 54a fixed to a front portion 51a of the base plate 51 described later can be slid in the guide grooves 48c and 48c, respectively. Is engaged. The

  At one end in the longitudinal direction of the rotation lever 49, an input portion 49a is provided on which one lock claw 46b of the lock member 46 is brought into contact. The input portion 49a of the rotation lever 49 is disposed so as to face one of the lock claws 46b. Further, a spring receiving piece 49b is formed at the other end in the longitudinal direction of the rotating lever 49, and one end of a coil spring 56 is locked to the spring receiving piece 49b. The other end of the coil spring 56 is engaged with a spring receiving piece 48d provided on the slide member 48 in a pulled state, and the slide member 48 is always moved downward (from one stopper claw 48a to the other stopper claw) by the spring force of the coil spring 56. (Direction toward 48b). In order to limit the turning operation of the turning lever 49 by the spring force of the coil spring 56, the slide member 48 is provided with a stopper piece 48e.

The base plate 51 is fixed to an empty space on the inner surface of the side surface portion 8a of the disk side panel 8 by avoiding the disk storage portion 6 by fixing means including fixing screws. The base plate 51 has a front part 51a facing the front part 8d of the disk side panel 8, and a bridging part 51b which is continuous with the front part 51a and is bent by 90 degrees and is opposed to the front plane of the mechanical chassis. ing. Further, the front portion 51a of the base plate 51 is provided with two guide pins 54a and 54a and a rotation shaft 55 between the two guide pins 54a and 54a.
The two guide pins 54a and 54a are supported by the two long holes of the slide member 48 so that the slide member 48 can be moved by a predetermined distance in the vertical direction as the slide direction.
A rotation lever 49 is rotatably supported by a rotation shaft 55 fixed to the front portion 51a at a substantially central portion of the base portion of the slide member 48. The rotation shaft 55 passes through the long hole of the slide member 48 so that the movement of the slide member 48 is not hindered.

As shown in FIG. 15B, the rotating shaft 55 includes a caulking shaft 55a and an intermediate shaft 55b having an insertion hole 55-6 for the caulking shaft 55a.
The caulking shaft 55a is inserted into a hole provided in the flange portion 55-1 forming the head, the rotating shaft portion 55-2 of the rotating lever 49, and the base plate 51, and one end portion thereof is fixed by caulking after standing. The portion 55-3 has a shape in which the respective axis centers are integrated.
In addition, the intermediate shaft 55b has a flange portion 55-4 and a shaft portion 55-5 that forms a slide pin in the slide member 48 integrated with each other, and the shaft portion 55-3 is inserted through the shaft center. The shape is provided with a through hole 55-6.

According to the base plate 51 configured in this manner, as shown in FIG. 1A, first, the rotating shaft portion 55-2 of the caulking shaft 55a is inserted into the rotating lever 49 and then the shaft portion 55- of the caulking shaft 55a. 3 is inserted into the intermediate shaft 55b, and the shaft portion 55-5 of the intermediate shaft 55b is inserted into the long hole of the slide member 49. Then, after inserting the shaft portion 55-3 of the caulking shaft 55a into the through hole of the base plate 51, the protruding end is caulked to be plastically deformed and fixed. At this time, since the rotation shaft 55 is composed of the caulking shaft 55a and the intermediate shaft 55b, the flange portion 55a of the caulking shaft 55a and the flange portion 55-4 of the intermediate shaft 55b are not affected even if the caulking force is somewhat large. Since the gap is kept constant, the rotation of the rotation lever 49 is not hindered by the deformation of the slide member 48 as in the prior art, and a reliable rotation operation can be realized.
Further, since the rotation lever and the slide member can be provided on the base plate by one caulking, the number of work steps in assembly can be reduced.
In the example of FIG. 1, the slide member 48 is described as being disposed between the intermediate shaft 55b and the base plate 51. However, the slide member 48 is provided with a certain gap by another intermediate shaft member, and the slide member 48 is slid. Of course, you may make it ensure the play at the time of a movement.

The motor assembly 50 is fixed to the bridging portion 51 b of the base plate 51.
In the motor assembly 50, a drive motor and a reduction gear are housed in a motor housing 81 having a substantially rectangular parallelepiped shape. As shown in FIGS. 9 and 10, a disk-shaped rotary cam 82 having a cam pin 84 standing thereon is used as a motor. It is provided so as to be exposed on the side surface of the housing 81, and can be rotated counterclockwise as indicated by the arrows shown in FIGS. 9 and 10 with the shaft portion 82a as the center of rotation.
A cam pin 84 for moving the slide member 48 back and forth is provided on the upper surface of the rotary cam 82. The cam pin 84 is moved by the rotation of the rotary cam 82, and the operation portion 48 f of the slide member 48 is disposed on the rotation locus.

In addition, a detection switch 86 for controlling the operation of the drive motor 80 is provided on the peripheral edge of the rotation cam 82, and a detection switch 87 for detecting the operation of the slide member 49 is exposed to the motor housing. 81 is provided on the surface.
As the slide member 49 slides, the operation convex portion 49g operates the operation portion 87a to turn on / off the detection switch 87, and the cam pin 84 of the rotating cam 82 operates the operation piece 86a to turn the detection switch 86 on. It is turned on and off to control the operation of the drive motor.

  Thus, in a state immediately before the disk lid 7 is closed, the pair of stopper claws 48 a and 48 b of the slide member 48 that is moving upward is opposed to the pair of lock claws 46 a and 46 b of the lock member 46. By moving the lock member 46 to the base plate 51 side from this state, the slopes of the pair of lock claws 46a and 46b press the upper ends of the pair of stopper claws 48a and 48b downward. When the pressing force overcomes the spring force of the coil spring 56 and slides the slide member 48 downward, the lock claws 46a and 46b get over the stopper claws 48a and 48b. As a result, the corresponding lock claws 46 a and 46 b and the stopper claws 48 a and 48 b are engaged with each other, and the lock member 46 is locked by the slide member 48. This state is the state shown in FIG.

  In order to ensure the engagement state between the pair of lock claws 46a and 46b and the pair of stopper claws 48a and 48b, a pair of insertions through which the pair of lock claws 46a and 46b are inserted in the front surface portion of the disk side panel 8 A hole is provided. Accordingly, when the disk lid 7 is opened and closed, the lock claws 46a and 46b are put in and out of these insertion holes.

  When the lid opening / closing mechanism changes from the state shown in FIG. 11 to the state shown in FIG. 12 and the coil spring 56 is extended against the spring force of the coil spring 56 and the slide member 48 moves downward, the pair of stopper claws 48a. , 48b are separated from the pair of lock claws 46a, 46b. Thereby, the lock between the pair of lock claws 46a and 46b and the pair of stopper claws 48a and 48b is released, and as a result, the disk lid 7 can be opened. Therefore, by rotating the disk lid 7 in the vicinity of the lock member 46, the disk lid 7 moves from the front to the side with the rear lid rotation shaft 39 as the rotation center as shown in FIG. It is rotated. As a result, the disc lid 7 is opened by the front opening, and the disc storage portion 6 is exposed.

  Next, when the disc lid 7 is closed again, the disc lid 7 is brought close to the outer case 5 as shown in FIG. Then, when the pair of lock claws 46a and 46b are passed through the pair of insertion holes 57a and 57b and brought close to the slide member 48, the one lock claw 46b is placed on the input portion 49a of the rotating lever 49 opposed thereto. Abutted. At this time, by further pressing the lock claws 46a and 46b against the spring force of the coil spring 56, the input portion 49a is disengaged from the stopper piece 48e, so that the slide member 48 becomes free. This state is the state shown in FIG. Then, the slide member 48 is moved upward by the spring force of the coil spring 56, and the pair of lock claws 46a and 46b are engaged with the pair of stopper claws 48a and 48b to return to the locked state shown in FIG.

  Such opening operation of the lid opening / closing mechanism is executed by the motor assembly 50 mounted on the base plate 51. In the motor assembly 50, for example, the slide operation of the slide member 48 is executed as follows. The operation of the motor assembly 50 will be described with reference to FIGS.

FIG. 9 is a diagram showing an initial state in which the disc lid 7 is closed (see FIG. 11). In this state, the slide member 48 has been moved to the right end shown in the figure, the drive motor is stopped, and the rotary cam 82 is stopped. The cam pin 84 is not engaged with the operation portion 48 f of the slide member 48, and only the operation piece 87 a of the detection switches 86 and 87 is turned on by the operation convex portion 48 g of the slide member 48. It becomes.
At this time, the stopper piece 48e of the slide member 48 and the input portion 49a of the rotation lever 49 are engaged with each other.
That is, the slide member 48 is in the upper position, and the lid opening / closing mechanism is in a locked state in which the lock member 46 is locked or in a similar state.

  9, when the user slides the operation member 47 in the opening direction (direction from the front side to the rear side of the exterior case 5), the operation of the operation member 47 is detected by the detection switch 44, and the detection signal A control signal based on is supplied to the drive motor. As a result, driving of the drive motor is started, the rotating cam 82 is rotated counterclockwise, and the cam pin 84 pushes the operating portion 48f to the left as shown in FIG. 10 to slide the slide member 48. . As a result, the slide member 48 is moved in the direction in which the stopper claws 48a, 48b are disengaged from the engagement with the lock claws 46a, 46b (see FIG. 12), and the detection switch 87 is turned off.

  In this process, the stopper piece 48e of the slide member 48 is disengaged from the input portion 49a of the turning lever 49, and the turning lever 49 turns in the direction of the arrow shown in FIG. When the end portion of the slide member 48 comes into contact (see FIG. 13), and the line connecting the center of the cam pin 84 and the shaft portion 82a is substantially parallel to the base plate 51 and the front portion 51a, the operation portion 48f of the slide member 48 is shown in FIG. Move to the leftmost position shown in.

  Further, when the rotating cam 82 rotates counterclockwise and the cam pin 84 moves downward from the state shown in FIG. 10, the operation portion 48 f of the slide member 48 is urged to the right side shown in FIG. 10 by the coil spring 56. Move gradually to the right. However, since the coil spring 56 urges the rotation lever 49 so that the rotation lever 49 comes into contact with the stopper piece 48e, the stopper member is finally held in a state where the stopper piece 48e is engaged with the rotation lever ( (See FIG. 13).

Further, the rotating cam 82 further rotates counterclockwise, the detection switch 86 is turned on by the cam pin 84, the rotating cam 82 is rotated by a predetermined angle, and the drive motor is set as the position of the cam pin 84 shown in FIG. Stop. That is, in this state, the slide member 48 is disengaged from the lock claws 46a and 46b on the left side shown in FIG. 10, and both the detection switches 86 and 87 are turned off.
In this state, when the disk lid 7 is opened, the lock claws 46a and 46b are released from the engagement with the stopper claws 48a and 48b. The detection switches 86 and 87 and the operation pieces 86a and 87a are in a state (see FIG. 13).

When the disc lid 7 is manually pushed from this state, as shown in FIGS. 10 and 13, since the slide claws 48a and 48b are kept in the released state, the lock claws 46a and 46b are not obstructed by the slide claws 48a and 48b. As shown in FIG. 14, the lock claw 46 b and the input portion 49 a of the rotation lever 49 are first brought into contact with each other, and then the input portion 49 a is pushed in, so that the rotation lever 49 is moved to the slide member 48. The engagement state with the stopper piece 48e is released.
Thus, the slide member 48 moves to the right side shown in FIGS. 10 and 14 by the urging force of the coil spring 56, and the stopper claws 48a and 48b are engaged with the lock claws 46a and 46b, respectively. And it returns to the initial state shown in FIG.9 and FIG.11.

  According to the disk type imaging device 1 having such a configuration, for example, the disk lid 7 can be opened and closed as follows. First, the power button 64 of the disk type imaging device 1 is pressed to turn it on, and the power is input.

  When the disc type imaging device 1 at this time is in a state in which the disc lid 7 is closed as shown in FIGS. 2 and 3, a pair of locks of the lock member 46 fixed to the disc lid 7. The claws 46a and 46b pass through a pair of insertion holes provided in the disk side panel 8 and enter the outer case 5, and are engaged with a pair of stopper claws 48a and 48b provided on the slide member 48 of the lid opening / closing mechanism. It is locked. 9 and 11 show the state of the lid opening / closing mechanism at this time. In this case, since the locked state of the lock member 46 by the slide member 48 is maintained, the user cannot open the disc lid 7.

  In such a closed state of the disc lid 7, the opening operation of the disc lid 7 is started by opening the operation member 47 disposed on the grip portion 43 of the outer case 5. First, when the operation member 47 is slid rearward in the opening direction, the opening operation is detected by the detection switch 44 disposed in the vicinity of the operation member 47. Based on the detection signal of the detection switch 44, driving of the drive motor of the motor assembly is started. The rotation cam 82 changes from the state shown in FIG. 9 through the state shown in FIG. 10 by driving the drive motor, so that the cam pin 84 of the rotation cam 82 comes into contact with the operation portion 48 f provided on the upper portion of the slide member 48. And press.

  When the operation portion 48f is thus pressed by the cam pin 84, the slide member 48 is slid in a direction away from the rotary cam 82 (downward of the imaging device in this embodiment). By the movement of the slide member 48, the pair of stopper claws 48a, 48b are detached from the pair of lock claws 46a, 46b, and the locked state of the lock member 46 by the slide member 48 is released. FIGS. 10 and 12 show the unlocked state.

  As a result, since the lock member 46 is in a free state, the disc lid 7 is provided on the lid rotation shaft portion 39 (which may be provided in the vicinity of the lid rotation shaft portion 39) as the rotation center. The spring force of the open spring is slightly released. FIG. 13 shows a state in which the disc lid 7 is opened. As a result, the user can open the disc lid 7 by hand. Therefore, when the user pushes the disc lid 7 outward by hand, the disc lid 7 is opened as shown in FIG. As a result, the DVD 2 mounted on the turntable 36 positioned substantially at the center of the disc storage portion 6 is exposed, and the DVD2 can be easily attached to and removed from the turntable 36.

  When the disc lid 7 is opened, the disc lid 7 is opened from the front side to the side with the rear portion as the center of rotation, whereas the hand strap 60 can be released downward. Therefore, the hand strap 60 does not hinder the opening operation, and the disc lid 7 can be opened smoothly. In addition, the opening angle of the disk lid can be increased (the opening / closing angle can be set to 90 degrees or more) as compared with an imaging apparatus in which the disk lid is opened from the upper side to the lower side. Therefore, the disk cover 7 does not hinder disk replacement, and the disk replacement work can be facilitated.

  When the disc lid 7 is closed from the opened state of the disc lid 7 shown in FIG. 7, the disc lid 7 is brought close to the disc side panel 8 to close the disc storage portion 6. At this time, the pair of lock claws 46 a and 46 b of the lock member 46 fixed to the inside of the disk lid 7 enters the pair of insertion holes of the disk side panel 8, and the base plate of the lid opening / closing mechanism attached to the disk side panel 8. The input part 49a of the turning lever 49 supported by 51 is pressed and turned backward. Accordingly, as shown in FIG. 14, the input portion 49 a of the rotation lever 49 is disengaged from the stopper piece 48 e of the slide member 48, so that the slide member 48 is moved by the spring force of the coil spring 56.

  Thereby, the pair of stopper claws 48 a and 48 b of the slide member 48 are engaged with the pair of lock claws 46 a and 46 b of the lock member 46. As a result, the lock member 46 is engaged and held by the slide member 48, and the disc lid 7 is closed with the lid opening / closing mechanism locked. FIGS. 9 and 11 show the locked state.

  According to the recording / reproducing apparatus for the disc-shaped recording medium of this example, the lid opening / closing mechanism of the disc lid 7 can be operated by a simple method to set the locked state or unlocked state of the lid related to attachment / detachment / storage of the disc-shaped recording medium. An opening / closing mechanism that can be reliably realized at low cost can be provided.

The recording / reproducing apparatus for a disk-shaped recording medium according to the present invention is not limited to the above-described example, and it is needless to say that various other configurations can be adopted without departing from the gist of the present invention.
For example, in the above-described embodiment, an example in which the present invention is applied to a disk-type imaging device using a DVD as a recording medium has been described. However, a disk-shaped recording medium of another recording system such as a magneto-optical disk or a magnetic disk can be used. In this case, the pickup device used for these is a magneto-optical pickup device, a magnetic pickup device, or the like depending on the type of recording medium.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an assembly of a lid opening / closing mechanism according to an example of an embodiment of a recording / reproducing apparatus for a disk-shaped recording medium of the present invention; FIG. 1 is a perspective view showing an example of an embodiment of a recording / reproducing apparatus for a disk-shaped recording medium according to the present invention. FIG. 3 is a perspective view of the recording / reproducing apparatus of FIG. FIG. 4 is a perspective view of the recording / reproducing apparatus of the example in FIG. 2 as viewed from the rear rear side different from that in FIG. FIG. 3 is a perspective view of the recording / reproducing apparatus of the example in FIG. 2 as viewed from the front (display device open, accessory shoe open). FIG. 3 is a perspective view of the recording / reproducing apparatus of FIG. 2 as viewed from the bottom of the back surface. In the recording / reproducing apparatus of the example of FIG. 5, the disk lid is in an open state, A indicates a disk accommodating portion, and B is a perspective view illustrating disk mounting. FIG. 3 is a perspective view showing a lid opening / closing mechanism disposed inside a disk side panel of the recording / reproducing apparatus of the example in FIG. 2. FIG. 3 is a perspective view illustrating a state in which a pair of lock claws of a lock member is engaged with a pair of stopper claws of a slide member and a state of a motor assembly, explaining an operation of a lid opening / closing mechanism according to the example recording / reproducing apparatus. It is. FIG. 9 is a perspective view illustrating a state of a motor assembly and a state in which a pair of locking claws are pulled out of a slide member and a disk lid is opened, explaining an operation of a lid opening / closing mechanism according to the recording / reproducing apparatus of FIG. FIG. 4 is an explanatory diagram illustrating an operation of a lid opening / closing mechanism according to the recording / reproducing apparatus of FIG. 2 and illustrating a state in which a pair of lock claws of a lock member is engaged with a pair of stopper claws of a slide member. FIG. 9 is an explanatory diagram illustrating an operation of a lid opening / closing mechanism according to the recording / reproducing apparatus of FIG. 2 and illustrating a state in which a pair of stopper claws are detached from a pair of lock claws. FIG. 9 is an explanatory diagram illustrating an operation of a lid opening / closing mechanism according to the recording / reproducing apparatus of FIG. 2 and showing a state in which a pair of lock claws are detached from a slide member and a disk lid is opened. FIG. 7 is a diagram illustrating an operation of a lid opening / closing mechanism according to the example of the recording / reproducing apparatus of FIG. The structure of the rotating shaft of the lid opening / closing mechanism according to the conventional recording / reproducing apparatus will be described. A is an assembled sectional view, and B is a perspective view of the rotating shaft.

Explanation of symbols

7 ... Disc lid, 46a, 46b ... Lock claw, 48 ... Slide member, 48a, 48b ... Stopper claw, 49 ... Rotating lever, 51 ... Base plate, 55 ... Rotating shaft, 55a ... Caulking shaft, 55b ... Intermediate shaft, 55-1, 55-4 ... Flange, 55-5 ... Shaft

Claims (1)

A table rotating device that rotationally drives a disk-shaped recording medium that is detachably mounted on the turntable, and a pickup device that records or reproduces an information signal on the disk-shaped recording medium that is rotationally driven by the table rotating device. An exterior case having a disk storage portion in which the pickup device, the table rotating device, and the turntable are disposed, a disk lid attached to the exterior case so as to cover the disk storage portion and to be freely opened and closed; In a recording / reproducing apparatus for a disk-shaped recording medium, comprising: a lid opening / closing mechanism that allows the disk lid to be in a locked state with the disk storage portion closed and releases the locked state;
The lid opening and closing mechanism,
A locking claw attached to the disc lid;
A base plate fixed to the exterior case; a slide member slidable by a guide pin provided on the base plate; a stopper claw and an engaging piece; and a slide member disposed on the slide member and provided on the base plate A rotation shaft that forms a slide guide for the slide member, and is rotatable about the rotation shaft, and engages with the engagement piece to limit the movement of the slide member, so that the lock of the disk lid The state is released, the input portion is pressed by the lock claw, the engagement of the engagement piece is released, and the disc lid is locked by the lock claw, and the slide member is moved. A motor assembly fixed to the base plate by separating the stopper claw from the lock claw, and urging the stopper claw toward the locked state And engagement mechanism and a Irubane,
The lock claw is configured to be freely engageable and disengageable with the stopper claw,
The rotation shaft of the engagement mechanism is
A flange portion, a head portion having a rotating shaft portion of the rotating lever, and a shaft portion for fixing to the base plate, and the diameter of the rotating shaft portion is formed to be slightly larger than the rotating hole diameter of the rotating lever. A caulking shaft in which the length of the rotating shaft portion is formed larger than the thickness of the rotating lever;
The sliding shaft includes a through-hole into which the shaft is inserted and a flange, and a sliding shaft that is disposed between the caulking shaft and the base plate and serves as a guide for the slide member. A disc-shaped recording comprising: an intermediate shaft having a diameter that is slightly larger than a width of the long hole of the slide member, and a length of the slide shaft portion that is greater than the thickness of the slide member Medium recording / reproducing apparatus.

Images