JP2010205343A - Information reproducing device, and electronic equipment including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information reproducing device which properly keeps a locking part protruding at a side plate of an information recording medium storage part engaged with a protrusion formed at an upper part of an eject lever in a notch shape, and also stably disengages them when a cartridge is to be taken out while opening the information recording medium storage part, and to provide electronic equipment including the same. <P>SOLUTION: An eject lever 131 has an elastic deformation part 131c having a protrusion which can engage with the locking part arranged facing the side plate, a body part 131e curved along a corner part from the elastic deformation part 131c and arranged at a predetermined spacing from the holding plate, an operation part 131a hung vertically at the inside of the information recording medium storage part from the body part 131e, and an abutting part 131d which extends from the operation part 131a and is in contact with or separated from the holding plate while the cartridge is stored. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information reproducing apparatus capable of reproducing at least information recorded on an information recording medium such as an optical disk, and an electronic apparatus including the information reproducing apparatus.

  With the recent rapid development of digital technology, the amount of data handled by various contents has increased rapidly, and information recording media suitable for various uses of users have been developed.

  Examples of such information recording media include a hard disk, an optical disk, and a semiconductor memory.

  There is a strong demand from users who want to take out and use information reproducing apparatuses and personal computers that use these information recording media not only indoors but also outdoors.

  As a slightly larger electronic device intended for such mobile use, for example, a notebook type portable personal computer, a portable information terminal represented by a PDA, a cellular phone, a portable game device, a digital still camera, a digital video camera, etc. Can be mentioned.

  In particular, ultra-compact so-called ultra-mobile personal computers equipped with 7-inch, 8.9-inch, or 10.2-inch liquid crystal display devices have recently been sold at prices that are not much different from the prices of mobile terminals. It has gained explosive popularity.

  In these mobile applications, semiconductor memory is generally used frequently when the content handled is mainly still images or text data, that is, when the recording capacity of the information recording medium may be small.

  The reason is that the semiconductor memory has low power consumption, no mechanical parts, and is strong against drop impact, and has a high data transfer speed. It is not suitable as a recording medium for contents having a large amount of data.

  On the other hand, an information recording medium using an optical disc is superior in productivity of disc manufacture when it is superior in cost per capacity due to replacement of an optical disc, random accessibility, and read-only media (ROM), and particularly moving images. It has become the mainstream of information recording media for recording content having a large amount of data.

  Further, for example, as a small electronic device that is popular for music reproduction suitable for carrying by an operator, a small-diameter optical disk having a diameter of about 63 mm is made of a resin having outer dimensions of about 72 mm in width, 68 mm in depth, and 5 mm in height. You can download your favorite images, songs, etc. to a small player that can play a small-diameter optical disc such as a mini-disc (registered trademark) contained in a cartridge, or a hard disk or semiconductor memory built in via an Internet network. Ultra-small players that can be played back are also widely used.

  As an information reproducing apparatus for reproducing a small-diameter optical disk accommodated in such a cartridge, for example, a configuration disclosed in (Patent Document 1) is known.

  In this document, when the cartridge is slid into the information recording medium storage unit and the eject lever is moved to a position closer to the rear end (in the insertion direction) in the movement range, the vicinity of the corner of the information recording medium storage unit The coil formed on the front end side (insertion port side) of the elastically deforming part of the eject lever is the state where the locking part protruding from the hook locks the notch-shaped convex part at the top of the eject lever The coil spring extends by positioning the coil spring hooking protrusion slightly above the spring hook, and the front end of the eject lever is only in the direction of the insertion slot due to the biasing force of the coil spring to return to its natural state. Moreover, the structure which is urged | biased a little upwards is disclosed.

  With this slightly upward biasing force, the locking part protruding from the side plate of the information recording medium storage part securely holds the notch-shaped protruding part at the top of the eject lever, and the operation is ensured. It is possible to prevent the cartridge from being inadvertently discharged due to an impact such as vibration or dropping during reproduction or carrying by the user.

On the other hand, when the information recording medium storage portion is to be opened in order to take out the cartridge, the leading end of the claw portion of the elastic deformation portion is pulled downward by the locking portion formed on the release plate, and as a result, the locking portion Since the convex portion latched by is similarly pulled down, the latched state is released, and the information recording medium storage portion moves to the front end side (insert port side) in an attempt to return the coil spring to its natural length.
JP 2004-118961 A

  However, in the conventional technique, the elastically deforming portion of the eject lever is applied with tensile stress by a coil spring from the coil spring hooking portion formed on the front end side (insert port side). When the tip convex portion is pulled downward, rotational displacement in the inner direction with the reciprocating motion direction of the eject lever at the corner of the information recording medium storage portion also occurs occurs, so that the rotational displacement can be prevented. There is a problem that it is difficult to release the locking state stably because the claw part is detached from the locking part of the release plate and the elastic deformation part is not pulled down sufficiently. .

  In particular, when used as an information reproducing apparatus that reproduces a small-diameter optical disk accommodated in a cartridge, the thickness of the eject lever tends to be reduced with the miniaturization and weight reduction of the apparatus itself. In order to ensure the slidability, it is necessary to provide a predetermined gap between the information recording medium storage unit and the like, which causes a further increase in rotational displacement, and such a problem becomes more prominent. ing.

  The present invention solves the above-mentioned problems, and is an information reproducing apparatus corresponding to a small-diameter disk, but is formed in a notch shape on a locking part protruding from a side plate of an information recording medium storage part and an upper part of an eject lever. It is possible to maintain the state of engagement with the projected portion satisfactorily, and to release the information recording medium storage portion and to take out the cartridge, the locked state can be stably released. It is an object of the present invention to provide an information reproducing apparatus and an electronic apparatus including the information reproducing apparatus.

  In order to achieve the above object, an eject lever of an information reproducing apparatus according to the present invention includes an elastic deformation portion having a convex portion that is disposed opposite to a side plate and engageable with a locking portion, and extends from the elastic deformation portion to a corner portion. A body portion that is bent and disposed at a predetermined distance from the holding plate, an action portion that hangs from the body portion to the inside of the information recording medium storage portion, and a cartridge that is extended from the action portion and stores the cartridge And a contact portion that contacts the holding plate or has a predetermined distance from the holding plate.

  An eject lever of an information reproducing apparatus according to the present invention includes an elastic deformation portion having a convex portion that is disposed opposite to a side plate and engageable with a locking portion, and is bent along a corner portion from the elastic deformation portion to a predetermined plate. A main body part arranged at intervals, an action part hanging from the main body part to the inside of the information recording medium storage part, and abutting or holding the holding plate in a state of being extended from the action part and storing the cartridge It has a board | substrate and the contact part which has a predetermined space | interval.

  As a result, although the information reproducing apparatus is compatible with a small-diameter disc, the engaging portion protruding from the side plate of the information recording medium storage portion and the convex portion formed in a cutout shape at the upper portion of the eject lever are engaged. An information reproducing apparatus capable of maintaining a good state and stably releasing the locked state when the information recording medium storage section is opened and the cartridge is to be taken out, and an electronic device including the information reproducing apparatus Equipment can be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the information reproducing apparatus 1 is recorded on an information recording medium storage unit 8 for storing a detachable information recording medium 7 and a disc-shaped recording medium 5 accommodated in at least a cartridge 6 of the information recording medium 7. The information recording medium includes a pickup 75 for reading the recorded information, a spindle motor 22 which is disposed substantially at the center of the reproducing mechanism section 2 and rotationally drives the disk-shaped recording medium 5, and a mounting section 95 which is disposed adjacently below the upper surface chassis 9. It has a pickup restricting member 94 that hangs down through the opening of the storage portion 8 and restricts displacement exceeding the normal operating range of the pickup 75.

  As is apparent from this figure, the information recording medium storage unit 8 has a pair of holding plates 81 and 82 which are arranged facing each other at a predetermined interval so as to sandwich the cartridge 6 from the height direction, and the cartridge connected to them. 6 is provided with a pair of side plates 83 and 84 arranged facing each other at a predetermined interval so as to sandwich 6 from the side surface side in the width direction.

  First, when the operator attaches the information recording medium 7 to the information reproducing apparatus 1, the operator operates a release lever (not shown) to open both the upper chassis 9 and the information recording medium storage unit 8 upward from the reproducing mechanism unit 2. Then, the information recording medium 7 is manually slid into the information recording medium storage unit 8 in a predetermined direction.

  Here, at least one concave portion (not shown) is slid into a surface parallel to the recording surface of the disk-shaped recording medium 5 which is the upper surface of the cartridge 6 containing the disk-shaped recording medium 5 having an information recording surface. It is formed parallel to the direction, and is slowly slid and inserted with the concave portion facing upward.

  Then, the pickup restricting member 94 is configured so that the information recording medium 7 is easily elastically displaced according to the attachment / detachment of the information recording medium 7 to / from the information recording medium storage unit 8. Along with this, the cartridge 6 is pushed by the leading end in the traveling direction and elastically deforms upward.

  When the cartridge 6 is further slid, the information recording medium 7 is pressed in a state where the pickup restricting member 94 is in contact with the upper surface of the cartridge 6, and the end surface on the slide insertion direction side of the cartridge 6 is stored in the information recording medium. It abuts against an action part 131a of an eject lever 131 (see FIG. 2) provided biased to the left of the back side of the part 8.

  Here, the eject lever 131 is attached to the outside of the corner portion 85 formed by the holding plate 81 and the side plate 83 connected to the holding plate 82 so as to be able to reciprocate. The eject lever 131 is also inserted by the insertion of the cartridge 6. Since the action part 131a abuts on the cartridge 6, it is slid and pushed inward.

  Then, the protruding portion 134 (see FIG. 2) of the eject lever 131 is locked by the locking portion 133 protruding from the vicinity of the corner portion 85 in a state where the cartridge 6 is stored in the information recording medium storage portion 8.

  Further, in this state, when the upper surface chassis 9 is pushed down, the disk-shaped recording medium 5 accommodated in the information recording medium 7 is chucked and mounted by the magnet disposed on the peripheral portion of the spindle motor 22, and the spindle motor 22 holds the disk-shaped recording medium 5 at a position where it can be rotated.

  Here, arrows x, y, and z shown in the lower part of the drawing indicate three-dimensional directions that are perpendicular to each other, and the width direction, the depth direction, and the height with respect to the information reproducing apparatus 1 and the cartridge 6, respectively. The direction is shown.

  Next, the eject mechanism P2 disposed at the corner 85 of the information recording medium storage 8 described above will be described in detail with reference to FIG.

  This figure shows a state in which the convex portion 134 of the eject lever 131 is locked by the locking portion 133, but the eject lever 131 is connected to the coil spring 132 via the coil spring hook portion 131b and is always in the direction D6. Is being energized.

  In addition, as described above, a coil spring hooking protrusion (not shown) located on the insertion opening side of the coil spring hooking portion 131b formed on the front end side (insertion side) of the elastic deformation portion 131c of the eject lever 131. When the coil spring 132 is positioned slightly upward, the coil spring 132 extends, and the biasing force of the coil spring 132 to return to its natural state causes the front end portion of the eject lever 131 to attach not only toward the insertion slot but also slightly upward. It is energized.

  However, the convex portion 134 provided on the upper portion of the elastic deformation portion 131c of the eject lever 131 is locked by the locking portion 133 that protrudes in the vicinity of the corner portion 85 of the information recording medium storage portion 8, and the eject lever 131 does not slide in the direction D6.

  On the other hand, in the closed state of the information recording medium storage unit 8, this state is maintained, but when the information recording medium storage unit 8 is opened by the operator's operation, the claw portion 137 is engaged with the locking portion 136 of the release plate 135. And is displaced in the locking portion 136 side, that is, in the direction D7.

  Then, when the protrusion 134 provided on the eject lever 131 is released from the engaging portion 133 provided on the information recording medium storage portion 8 due to the displacement of the claw portion 137 in the direction D7, the coil is released. As the spring 132 contracts to return to its natural length, the eject lever 131 is displaced in the direction D6, and the cartridge 6 stored in the information recording medium storage unit 8 is ejected in the direction D6.

  Next, the eject lever 131 alone will be described with reference to FIG.

  The eject lever 131 is slidably opposed to the side plate 83 (see FIG. 4), has an elastic deformation portion 131c having a convex portion 134 that can be engaged with the locking portion 133, and the elastic deformation portion 131c to the corner portion 85 (FIG. 4). A main body part 131e that is bent along a predetermined distance from the holding plate 81, an action part 131a that hangs from the main body part 131e to the inside of the information recording medium storage part 8, and an action part 131a. And a contact portion 131d that contacts the lower surface of the holding plate 81 or has a predetermined distance from the holding plate 81 in a state where the cartridge 6 is stored.

  Further, the eject lever 131 is attached to be slidable in the y direction via at least one support pin (not shown) protruding from the side plate 83 below the elastic deformation portion 131c and the supported hole 131f. A support portion 131g is provided to restrict the reciprocating motion direction.

  In addition, as shown in FIG. 4, the contact portion 131 d is provided so as to have a certain predetermined distance from the lower surface of the holding plate 81 in a state in which the cartridge 6 is stored while extending from the action portion 131 a. This is to secure a stable reciprocating motion by providing a margin (tolerance) in consideration of processing accuracy and assembly accuracy of the holding plate 81 and the eject lever 131 constituting the information recording medium storage unit 8. If it is not necessary to consider, the contact portion 131 d may be provided so as to contact the lower surface of the holding plate 81.

  Here, when the cartridge 6 is to be taken out, the tip convex portion 137a of the claw portion 137 of the elastically deforming portion 131c is indicated by a direction D7 in order to release the locked state of the convex portion 134 of the eject lever 131 by the locking portion 136. Pulled down.

  Then, the inner side direction (counterclockwise direction in this figure) with the reciprocating motion direction of the eject lever 131 of the corner portion 85 of the information recording medium storage portion 8 as the central axis, that is, the upper surface of the main body portion 131e has the corner portion 85 as a fulcrum. Although the rotational displacement θ tends to occur up to the position indicated by the broken line, the pressing force in the downward direction D8 from the holding plate 81 acts on the contact portion 131d before the rotational displacement. It can be effectively prevented from occurring.

  As a result, the claw portion 137 does not disengage from the locking portion 136 of the release plate 135 when the locking state of the convex portion 134 of the eject lever 131 is released, and the elastic deformation portion 131c is sufficiently pulled down downward. Therefore, the locked state can be released stably.

  As described above, the information reproducing apparatus and the electronic apparatus including the information reproducing apparatus according to the present invention are the information reproducing apparatus corresponding to the small-diameter disc, and the locking portion and the eject lever that are projected from the side plate of the information recording medium storage portion. When it is possible to maintain the engaged state with the notch-shaped convex part at the top of the disk and to open the information recording medium storage part and take out the cartridge, the locked state is Since it is possible to provide an information reproducing apparatus that can be stably released and an electronic device including the information reproducing apparatus, a notebook-type portable personal computer, a portable information terminal represented by a PDA, a cellular phone, a portable game device, It can be used as an information reproducing apparatus for mobile use such as a digital still camera and a digital video camera.

The perspective view of the state which opened the information recording medium storage part of the information reproducing apparatus The perspective view which looked at the ejection mechanism part of the information recording medium storage part of an information reproducing device Perspective view of ejector lever unit of information playback device Partial front view of the vicinity of the corner showing the relationship between the eject lever and the information recording medium storage

DESCRIPTION OF SYMBOLS 1 Information reproduction apparatus 2 Reproduction | regeneration mechanism part 5 Disc-shaped recording medium 6 Cartridge 7 Information recording medium 8 Information recording medium storage part 9 Top surface chassis 22 Spindle motor 75 Pickup 81 Holding plate 82 Holding plate 83 Side plate 84 Side plate 85 Corner portion 94 Pickup control member 95 Mounting portion 131 Eject lever 131a Action portion 131b Coil spring hook portion 131c Elastic deformation portion 131d Contact portion 131e Main body portion 131f Supported hole 131g Supported portion 132 Coil spring 133 Locking portion 134 Protruding portion 135 Release plate 136 Locking portion 137 Claw part 137a Tip convex part P2 Eject mechanism part θ Rotational displacement D6 direction D7 direction D8 direction

Claims (3)

A pair of holding plates which are arranged to face each other at a predetermined interval so as to sandwich a cartridge containing a disc-shaped recording medium having an information recording surface from the height direction, and the cartridge is connected to the pair of holding plates in the width direction. An information recording medium storage unit having a pair of side plates disposed facing each other at a predetermined interval so as to be sandwiched from the side surface of
The cartridge is stored in the information recording medium storage unit, reciprocally attached to the outside of a corner portion formed by one of the pair of holding plates and a side plate connected to the holding plate. An ejector lever having a convex portion that is locked by a locking portion protruding from the vicinity of the corner portion in a state where
The eject lever includes an elastic deformation portion having the convex portion that is disposed opposite to the side plate and engageable with the locking portion;
A body portion that is bent from the elastic deformation portion along the corner portion and disposed at a predetermined interval from the holding plate;
An action part suspended from the main body part to the inside of the information recording medium storage part;
An information reproducing apparatus comprising: an abutting portion extending from the action portion and abutting on the holding plate or having a predetermined distance from the holding plate in a state where the cartridge is stored. The contact portion contacts the holding plate when the locking state of the convex portion of the eject lever by the locking portion is released, and the elastic deformation portion is centered on the reciprocating direction of the corner portion. The information reproducing apparatus according to claim 1, wherein the information reproducing apparatus is provided so as to restrict movement in a rotational direction about an axis. An electronic apparatus comprising the information reproducing apparatus according to claim 1.

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