JP2010192014A - Information processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing apparatus which can reliably eject a large diameter recording medium to the outside of a device body, even if the large diameter recording medium to be ejected always deviates in only one direction of the width direction. <P>SOLUTION: A CD player 1 loads/unloads a large diameter CD 2a and a small diameter CD 2b to/from a device body 3. The CD player 1 includes a disk centering mechanism 4 and a lock mechanism 7. When only one projection pin 24 of a pair of centering arms 20a and 20b of the disk centering mechanism 4 is pressed to the direction to be separated from the projection pin 24 of the other side, the lock mechanism 7 regulates the arm body 23 of a pair of the centering arms 20a and 20b from rotating until the large diameter CD2a can be loaded/unloaded to/from the device body 3. A center line of a cam hole 25 of the lock mechanism 7 shifts from a boundary of first and second recesses 26a and 26b which regulate rotation of the arm body 23. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a recording medium playback apparatus that reads information from a recording medium such as a Compact Disc.

  For example, an instrument panel (hereinafter referred to as an instrument panel) of an automobile as a moving body has a size such as a large diameter Compact Disc (hereinafter referred to as a CD) having an outer diameter of 12 cm and a small diameter CD having an outer diameter of 8 cm. A different recording medium is selected and inserted, and a CD player (see, for example, Patent Document 1) as an information processing apparatus for reading information on the recording medium is attached.

  The CD player includes a device main body attached to the instrument panel, a recording medium insertion opening opened in the device main body, a transport unit, a disc centering mechanism as a guide means, and a function for reading information recorded on the CD. A playback unit and the like are provided. The device body includes a box-shaped chassis in which a plurality of sheet metals and the like are assembled to each other. The CD is passed through the recording medium insertion slot.

  The transport unit transports the CD passed through the recording medium insertion slot to a predetermined reproduction position, or conveys the CD from the reproduction position to the recording medium insertion slot and ejects the CD from the apparatus main body. The transport unit includes a pair of clamping members provided so as to be able to contact and separate from each other.

  One of the pair of clamping members includes a conveyance roller that is rotationally driven by a drive source such as a motor. The conveying roller conveys the CD by being rotationally driven by a driving source such as the motor. The other clamping member includes a sliding member having a small friction coefficient. The sliding member guides the conveyance direction of the CD by sandwiching the CD with the conveyance roller. The transport unit transports the CD by sandwiching the CD between a pair of sandwiching members.

  The disk centering mechanism includes a pair of centering arms, a link lever, a coil spring as urging means, and a lock mechanism. The disc centering mechanism is arranged in the vicinity of the recording medium insertion slot.

  The pair of centering arms are arranged at intervals from each other along the width direction of the device main body. The pair of centering arms includes an arm main body rotatably supported by the chassis of the device main body so that one end portions close to the recording medium insertion opening are close to each other or away from each other, and the recording medium insertion opening of the arm main body. A projecting pin projecting from one end of the.

  The link lever is rotatably connected to each arm body of the centering arm. The link lever rotates the pair of centering arms in synchronization so that the protruding pins are separated from each other and the protruding pins are close to each other. The coil spring urges the centering arm or the like in the direction in which the protruding pins approach each other.

  The lock mechanism restricts rotation of the arm bodies of the pair of centering arms until only one of the projecting pins is pressed away from the other projecting pin until the large-diameter CD can be inserted into and removed from the apparatus body. To do.

  The reproduction unit includes a rotary table for rotating the CD, and an optical pickup for reading information recorded on the CD. The reproduction unit positions (clamps) the CD at the reproduction position, the rotation table rotates the CD, and the optical pickup reads the information recorded on the CD.

  When the CD is inserted into the apparatus main body 3 through the recording medium insertion slot, the CD first contacts the protruding pin. The CD is sandwiched between the pair of clamping members. As the CD is conveyed into the apparatus main body by the rotation of the conveying roller, the arm main body gradually rotates in the direction in which the protruding pins are separated from each other. The protruding pins of the pair of centering arms guide the CD to the reproduction position. Thus, the information processing apparatus has transported the CD from the outside of the apparatus main body to the reproduction position. At this time, when the small-diameter CD is inserted and the small-diameter CD presses only one of the protruding pins, the arm mechanism of the pair of centering arms rotates until the large-diameter CD can be inserted into and removed from the apparatus main body. To regulate that. Further, when the large-diameter CD is inserted, the large-diameter CD presses both projecting pins, and the lock mechanism does not restrict the rotation of the arm main body, so that the large-diameter CD can be taken in and out of the apparatus main body. The projecting pins of the centering arm are separated from each other.

  Then, the CD is clamped to the reproduction unit, and information is taken out by the reproduction unit. The information processing apparatus outputs the extracted information as sound. When the CD is carried out of the apparatus main body, first, the rotation of the rotary table is stopped. The transport roller of the transport unit is rotated in the opposite direction to the previous direction, and the CD is gradually transported from the inside of the device body to the outside of the device body through the recording medium insertion slot.

  At this time, the protruding pin comes into contact with the CD. The projecting pins of the pair of centering arms move away from each other or approach (separate from each other) as the CD is ejected. The protruding pins of the pair of centering arms guide the CD ejection direction. Also at this time, when the small-diameter CD is ejected and the small-diameter CD presses only one of the protruding pins, the arm mechanism of the pair of centering arms rotates until the large-diameter CD can be inserted into and removed from the apparatus main body. To regulate. Further, when discharging the large-diameter CD, the large-diameter CD presses both protruding pins, and the lock mechanism does not restrict the rotation of the arm main body until the large-diameter CD can be taken in and out of the apparatus main body. The protruding pins of the pair of centering arms are separated from each other.

JP 2002-313007 A

  In the above-described CD player, when a CD is ejected due to foreign matters adhering to the conveyance roller due to secular change or due to component tolerances, the ejected CD is always in only one direction in the width direction (only to the right). (Sometimes it was just left and right). In this case, when the large-diameter CD is ejected, the large-diameter CD always presses only one of the same protruding pins, so that the large-diameter CD can be taken in and out of the apparatus main body by the lock mechanism described above. Until then, the rotation of the arm bodies of the pair of centering arms is restricted. In this case, of course, the large-diameter CD cannot be discharged out of the apparatus main body.

  Therefore, the object of the present invention is, for example, when a large-diameter recording medium to be discharged is always only in one direction in the width direction due to foreign matter adhering to the conveyance roller due to secular change or due to component tolerances. An object of the present invention is to provide an information processing apparatus capable of reliably discharging a recording medium out of the apparatus main body.

In order to solve the problems and achieve the object, the information processing apparatus according to the first aspect of the present invention includes a large-diameter recording medium and a small-diameter recording medium having different sizes, which are taken in and out of the apparatus body. In the information processing apparatus for reading the information recorded on the recording medium, the arm main body rotatably supported by the apparatus main body, and the large-diameter recording medium provided at one end of the arm main body near the insertion opening of the apparatus main body And a projecting pin that can come into contact with both the small-diameter recording medium, the first centering arm having a spacing in the width direction of the first centering arm and the device body, and being rotatable on the device body A second centering member having a supported arm body and a projecting pin provided at one end of the arm body near the insertion port and capable of contacting both the large-diameter recording medium and the small-diameter recording medium. A biasing arm, a link lever for synchronizing and rotating the arm bodies of the first centering arm and the second centering arm, and a protruding pin of the first centering arm and the second centering arm are biased toward each other. An urging means, a cam hole, a cam pin that moves in the cam hole in conjunction with rotation of the first centering arm and the second centering arm, a recess formed from an inner edge of the cam hole, and the first When only the projecting pin of the centering arm is pressed away from the projecting pin of the second centering arm, the first and second centering until the cam pin enters and the large-diameter recording medium can be taken in and out of the apparatus main body. A first recess for restricting rotation of the arm body of the arm and a recess formed from the inner edge of the cam hole; In addition, when only the projecting pin of the second centering arm is pressed away from the projecting pin of the first centering arm, the first pin is inserted until the cam pin enters and the large-diameter recording medium can be taken in and out of the apparatus body. And a second recess for restricting rotation of the arm body of the second centering arm, and the first centering arm from the initial position of the first centering arm until the cam pin enters the first recess. The lock mechanism formed so that the rotation angle of the arm body of the second centering arm is smaller than the rotation angle of the arm body of the second centering arm from the initial position of the second centering arm until the cam pin enters the second recess. And comprising
When the large-diameter recording medium is discharged, the cam pin slides to the inner edge of the cam hole facing the first recess while the cam pin reaches the first recess from the initial position, and the cam pin After passing through the first recess, the cam hole is centered on the first and second recesses so that the cam pin slides on the inner edge of the cam hole facing the second recess. The line is shifted.

1 is a perspective view of a CD player according to a first embodiment of the present invention. FIG. 2 is a perspective view showing a chassis main body and a clamp reproduction unit of the CD player shown in FIG. 1. FIG. 2 is a plan view schematically showing a configuration of a disc centering mechanism and the like of the CD player shown in FIG. 1. It is a top view of the cam hole of the 1st centering arm which expands and shows IV in FIG. It is a top view of the cam hole of the 2nd centering arm which expands and shows V in FIG. FIG. 4 is a plan view showing a state where a cam pin has entered a first recess of a cam hole of a first centering arm of the disc centering mechanism shown in FIG. 3. FIG. 4 is a plan view showing a state in which a cam pin has entered a second recess of a cam hole of a second centering arm of the disc centering mechanism shown in FIG. 3. FIG. 4 is a plan view schematically showing a state in which an outer edge of a large-diameter CD that has started to be discharged out of the apparatus main body is in contact with a protruding pin of a second centering arm of the disc centering mechanism shown in FIG. 3. (A) is an enlarged plan view showing the IXa portion in FIG. 8, and (b) is an enlarged plan view showing the IXb portion in FIG. (A) is an enlarged plan view showing the Xa portion in FIG. 8, and (b) is an enlarged plan view showing the Xb portion in FIG. It is a top view which shows typically the state by which large diameter CD shown by FIG. 8 was further discharged | emitted out of the apparatus main body. (A) is an enlarged plan view showing the XIIa portion in FIG. 11, and (b) is an enlarged plan view showing the XIIb portion in FIG. (A) is an enlarged plan view showing an XIIIa portion in FIG. 11, and (b) is an enlarged plan view showing an XIIIb portion in FIG. FIG. 12 is a plan view schematically showing a state where the large-diameter CD shown in FIG. 11 is further discharged out of the apparatus main body. (A) is an enlarged plan view showing an XVa portion in FIG. 14, and (b) is an enlarged plan view showing an XVb portion in FIG. (A) is an enlarged plan view showing an XVIa portion in FIG. 14, and (b) is an enlarged plan view showing an XVIb portion in FIG. FIG. 15 is a plan view schematically showing a state where the large-diameter CD shown in FIG. 14 is further discharged out of the apparatus main body. (A) is an enlarged plan view showing an XVIIIa portion in FIG. 17, and (b) is an enlarged plan view showing an XVIIIb portion in FIG. (A) is an enlarged plan view showing the XIXa portion in FIG. 17, and (b) is an enlarged plan view showing the XIXb portion in FIG. It is a top view which shows typically the disc centering mechanism etc. of CD player concerning the 2nd Example of this invention. FIG. 21 is a plan view schematically showing a locking mechanism of the CD player shown in FIG. 20. FIG. 22 is a plan view schematically showing a state in which the outer edge of the large-diameter CD that has started to be ejected out of the apparatus main body is in contact with the protruding pin of the second centering arm of the disc centering mechanism shown in FIG. 21. It is a top view which shows typically the locking mechanism shown by FIG. It is a top view which shows typically the state by which large diameter CD shown by FIG. 22 was discharged | emitted out of the apparatus main body. FIG. 25 is a plan view schematically showing the locking mechanism shown in FIG. 24.

  Hereinafter, an information processing apparatus according to an embodiment of the present invention will be described. In the information processing apparatus according to the embodiment of the present invention, when ejecting the large-diameter recording medium, the cam pin slides to the inner edge facing the first recess of the cam hole during the period from the initial position to the first recess, Further, the center line of the cam hole is shifted with respect to the first and second recesses so that the cam pin slides on the inner edge of the cam hole facing the second recess when the first recess is passed. In this way, when discharging the large-diameter recording medium, the cam pin can be prevented from entering and locking into the first and second recesses, and the rotation of the arm bodies of the first and second centering arms can be performed by the lock mechanism. Is restricted, and it is possible to prevent the large-diameter recording medium from being discharged out of the apparatus main body. For this reason, even if foreign matter adheres to the transport roller due to secular change or the large-diameter recording medium to be discharged is always in only one direction in the width direction due to component tolerances, the large-diameter recording medium is removed from the main body of the device. Can be discharged reliably.

  In the information processing apparatus according to the present embodiment, the lock mechanism may be provided with cam holes in each centering arm and cam pins at both ends of the link lever. In this case, the large-diameter recording medium can be reliably discharged out of the main body of the apparatus, and each centering arm can be rotated in synchronization with a single link lever, which increases the number of parts. Can be prevented.

  Furthermore, in the information processing apparatus according to the present embodiment, the lock mechanism may provide the cam hole in the device main body, and provide the first dent and the second dent on the inner edge of the cam hole. In this case, the large-diameter recording medium can be reliably discharged out of the apparatus main body, and only one cam hole is provided, and the first and second recesses are integrally formed in the cam hole. It is possible to prevent the required man-hours from increasing.

  Hereinafter, a CD player 1 as an example of an information processing apparatus according to a first embodiment of the present invention will be described with reference to FIGS. A CD player 1 shown in FIG. 1 or the like is attached to an automobile instrument panel (hereinafter referred to as an instrument panel) as a moving body, and is used as a large-diameter recording medium having a relatively large outer diameter of, for example, 12 cm. The user selects either the large-diameter CD2a and the small-diameter CD2b as a small-diameter recording medium having a relatively small outer diameter of, for example, 8 cm, and accommodates it in the apparatus main body 3 described later. Of course, the large diameter CD2a and the small diameter CD2b have different sizes.

  The CD player 1 positions the CDs 2a and 2b having different sizes (outer diameters) at playback positions (to be described later) in the device main body 3, and takes out (plays back) information recorded on the CDs 2a and 2b. And output as audio. The CDs 2a and 2b are, of course, formed in a disk shape, form the recording medium described in the claims, and can be read by an electronic device such as a disk-shaped computer. It is.

  As shown in FIGS. 1 and 2, the CD player 1 includes an apparatus main body 3 (shown in FIG. 1), a transport unit 5 as transport means, a clamp playback unit 6 as clamp playback means, and interlocking means (not shown). , A disk centering mechanism 4 (shown in FIG. 3), a lock mechanism 7 (shown in FIG. 3), a guide mechanism 8 (shown in FIG. 3) as a guide means, and a control means (not shown) μCOM. In the following, the arrow Y in FIG. 1 parallel to both the surface of the CD 2a, 2b and the transport direction of the CD 2a, 2b of the transport unit 5 will be referred to as the depth direction of the CD player 1, and parallel to the surface of the CD 2a, 2b. An arrow X orthogonal to the depth direction Y is referred to as the width direction of the CD player 1, and an arrow Z orthogonal to the surface of the CDs 2 a and 2 b and all of the depth direction Y and the width direction X is referred to as the thickness direction of the CD player 1.

  The apparatus main body 3 includes an outer case 9 shown in FIG. 1 made of synthetic resin, metal, or the like, and a chassis main body 10 shown in FIG.

  The outer case 9 is formed in a flat box shape. When attached to the above-mentioned instrument panel of the outer case 9, one insertion slot 11 into which a CD can be taken in and out is provided on the front face 9a (shown in FIG. 1) facing the occupant. The front surface 9a is one surface of the outer case 9 that is exposed to the outside of the outer panel 9 when the CD player 1 is attached to the instrument panel.

  The insertion port 11 passes through the outer wall of the outer case 9. The insertion slot 11 can pass CD2a, 2b inside. Through the insertion slot 11, the CDs 2 a and 2 b are accommodated in or discharged from the outer case 9, that is, the device main body 3. That is, the insertion slot 11 allows the CDs 2a and 2b to be inserted into and removed from the apparatus main body 3.

  Furthermore, the display panel 12 and various switches 13 are provided on the front surface 9a described above.

  The display panel 12 includes a display surface as a display area that is exposed to the front surface 9a and displays various types of information to the user. The display panel 12 displays information such as the name of the program being reproduced on the display surface.

  The various switches 13 constitute an operation unit for the user to operate. When the switch 13 is operated by a user or the like, for example, the program of the CDs 2a and 2b to be played back by the clamp playback unit 6 and the insertion and removal of the CDs 2a and 2b are performed.

  As shown in FIG. 2 and the like, the chassis main body 10 is configured by attaching a plurality of bent sheet metals and the like to each other. As shown in FIG. 2, the chassis main body 10 includes a substantially flat bottom plate 14, a substantially flat ceiling plate 15 opposed to the bottom plate 14 with a space therebetween, and a plurality of continuous bottom plates 14 and the ceiling plate 15. And a peripheral plate 16. Each of these plates 14, 15, and 16 is provided with a plurality of openings for reducing the weight and securing the rigidity of the chassis body 10.

  The transport unit 5 includes a roller arm and a disk guide 17. A conveyance roller that is rotationally driven by a drive source such as a motor is attached to the roller arm. The roller arm and the disk guide 17 are provided so as to be able to contact and separate from each other. In the transport unit 5, the roller arm and the disk guide 17 approach each other, the CDs 2a and 2b are sandwiched therebetween, and the transport rollers are driven to rotate by the motor, whereby the CDs 2a and 2b are taken in and out of the apparatus main body 3. .

  The transport unit 5 transports the CDs 2a and 2b along a direction (that is, a depth direction Y) that is parallel to both surfaces of the CDs 2a and 2b and connects the insertion slot 11 and a reproduction position described later. Further, when the clamp reproducing unit 6 clamps the CDs 2a and 2b and reads the information on the CDs 2a and 2b, the transport unit 5 prevents the operation of the clamp reproducing unit 6 by separating the roller arm and the disc guide 17 from each other. There is nothing.

  The clamp reproduction unit 6 includes a carriage chassis and a clamp arm 18 that are provided so as to be able to contact and separate from each other. A turntable and an optical pickup unit that are rotatably supported are attached to the carriage chassis.

  A clamper 19 is attached to the clamp arm 18 to clamp the CDs 2a and 2b with the CDs 2a and 2b sandwiched between the rotary table. In this specification, the positions of the CDs 2a and 2b when sandwiched between the rotary table and the clamper 19 and the positions of the CDs 2a and 2b that can be sandwiched between the rotary table and the clamper 19 are referred to as reproduction positions. And Further, between the insertion slot 11 and the reproduction position, there is a conveyance path for the CDs 2a and 2b.

  In the above-described clamp reproduction unit 6, the CD 2a, 2b inserted into the apparatus main body 3 by the transport unit 5 is sandwiched between the carriage chassis and the clamp arm 18, and the CD 2a, 2b is rotated by the rotary table so that the CD 2a , 2b is read out and reproduced by the optical pickup unit.

  When the CD 2a and 2b are transported, the interlocking mechanism keeps the disk guide 17 of the transport unit 5 and the transport roller of the roller arm close to each other, and keeps the carriage chassis and the clamp arm 18 away from each other. When the CD 2a, 2b is positioned at the reproduction position by the transport unit 5, the interlocking mechanism sandwiches the CD 2a, 2b between the rotary table and the clamper 19 by bringing the carriage chassis and the clamp arm 18 close to each other, and The disc guide 17 and the transport roller of the roller arm are moved away from each other to restrict the disc guide 17 and the transport roller of the roller arm from interfering with the CDs 2a and 2b. As described above, the interlocking mechanism interlocks the operations of the transport unit 5 and the clamp reproduction unit 6.

  As shown in FIG. 3, the disc centering mechanism 4 includes a first centering arm 20a, a second centering arm 20b, one link lever 21, and a coil spring 28 as an urging means.

  The first and second centering arms 20a and 20b are arranged in the vicinity of the insertion slot 11, respectively. The first and second centering arms 20 a and 20 b are arranged at intervals from each other along the width direction X, that is, the longitudinal direction of the insertion slot 11. For this reason, the second centering arm 20 b is disposed with a gap in the width direction X between the first centering arm 20 a and the device main body 3.

  Each of the first and second centering arms 20 a and 20 b includes a belt-like arm main body 23 and a protruding pin 24. The arm main body 23 of each of the first and second centering arms 20a and 20b is rotatably supported by the bottom plate 14 of the chassis main body 10 so that one end portion close to the insertion port 11 approaches or separates (contacts and separates) from each other. ing.

  Of the first and second centering arms 20a, 20b, the arm body 23 of the first centering arm 20a located on the right side in FIG. 3 is provided so as to be rotatable about its longitudinal center. Of the first and second centering arms 20a, 20b, the arm body 23 of the second centering arm 20b located on the left side in FIG. 3 is rotatable about the other end located on the back side of the device body 3. Is provided.

  The arm body 23 of the first and second centering arms 20a and 20b described above has an initial position (shown in FIG. 3) in which the longitudinal direction positioned when the CDs 2a and 2b are not inserted and removed is substantially parallel to the depth direction Y. The base plate 14 is rotatably supported by the bottom plate 14 so as to be displaceable from the initial position to a release position (shown in FIG. 17) in which one end is farthest from each other.

  The protruding pin 24 protrudes from one end of the arm main body 23 toward the inside of the ceiling plate 15, that is, the insertion slot 11. The protruding pin 24 is formed in a cylindrical shape.

  The link lever 21 is formed in a strip shape extending linearly. The link lever 21 is slidable along a direction that is overlapped on the bottom plate 14 with its longitudinal direction parallel to the width direction X and intersects the width direction X, that is, the depth direction Y (orthogonal in the illustrated example). Is supported by the bottom plate 14. One end of the link lever 21 is connected to the other end of the device body 3 of the arm body 23 of the first centering arm 20a described above by the lock mechanism 7, and the other end of the link lever 21 is connected to the second centering arm described above. The arm main body 23 of 20b is connected to the central portion in the longitudinal direction. In this way, the link lever 21 is moved by the lock mechanism 7 at a position closer to the other end of the arm body 23 than the center of rotation of the arm body 23 of the first centering arm 20a and the arm body 23 of the second centering arm 20b. Is connected to a position closer to one end of the arm body 23 than the center of rotation.

  With the above-described configuration, the link lever 21 slides with respect to the bottom plate 14 along the width direction X so that the one end portion, that is, the protruding pin 24 is separated from one another, and the one end portion, that is, the protruding pin 24 approaches each other. In addition, the arm main bodies 23 of the first and second centering arms 20a and 20b are rotated in synchronization. Thus, the link lever 21 synchronizes and rotates the arm main bodies 23 of the first and second centering arms 20a and 20b to displace the pair of centering arms 20a and 20b between the initial position and the release position.

  The coil spring 28 is spanned between the bottom plate 14 and the link lever 21, and the end portions of the arm bodies 23 of the first and second centering arms 20 a and 20 b, that is, the protruding pins 24 approach each other via the link lever 21. The first and second centering arms 20a and 20b described above are biased. For this reason, the first and second centering arms 20a and 20b are positioned at the initial positions described above when the CDs 2a and 2b are not being conveyed.

  As shown in FIG. 3, the lock mechanism 7 includes a cam pin 22 projecting from both ends of the link lever 21 toward the arm body 23 of the first and second centering arms 20a and 20b, and a pair of centering arms 20a and 20b. The cam body 25 is provided with a cam hole 25 provided at the connecting portion of the link lever 21 of the arm body 23, and first and second recesses 26 a and 26 b provided at the inner edges of the cam holes 25.

  The cam pin 22 is formed in a columnar shape, and is integrally formed with the link lever 21 in the illustrated example.

  As shown in FIGS. 4 and 5, the cam hole 25 penetrates the arm main body 23 of each of the first and second centering arms 20 a and 20 b and is formed in an arc shape. The cam hole 25 is provided in the arm main body 23 of both the first and second centering arms 20a and 20b. Each cam hole 25 extends in the radial direction from the center of rotation of the arm body 23 of both the first and second centering arms 20a and 20b, and away from the center of rotation with respect to the radial direction. It is gradually curved.

  As shown in FIG. 4, the cam hole 25 provided in the first centering arm 20a gradually moves toward the back side of the device body 3 as the distance from the center of rotation of the arm body 23 of the first centering arm 20a increases. Is curved. As shown in FIG. 5, the cam hole 25 provided in the second centering arm 20b bends gradually toward the insertion port 11 as the distance from the center of rotation of the arm body 23 of the second centering arm 20b increases. ing.

  The cam pin 22 described above enters the cam hole 25. In the cam hole 25, the cam pin 22 is movable along the longitudinal direction of the cam hole 25. As the cam pin 22 moves in the cam hole 25, the lock mechanism 7 cooperates with the link lever 21 to rotate the first and second centering arms 20 a and 20 b in conjunction with each other.

  When the first centering arm 20a is positioned at the initial position described above, the cam hole 25 provided in the first centering arm 20a positions the cam pin 22 within the end portion on the back side of the device body 3. Further, when the second centering arm 20b is positioned at the initial position described above, the cam hole 25 provided in the second centering arm 20b positions the cam pin 22 in the end portion of the device main body 3 near the insertion port 11.

  The cam pin 22 that has entered the cam hole 25 provided in the arm body 23 of the first centering arm 20 a in conjunction with the rotation of the first centering arm 20 a from the initial position is inserted into the insertion hole 11 of the cam hole 25. It moves to the side and is positioned at the end of the cam hole 25 near the insertion port 11 at the release position described above.

  The cam pin 22 that has entered the cam hole 25 provided in the arm main body 23 of the second centering arm 20b in conjunction with the rotation of the second centering arm 20b from the initial position is the device of the cam hole 25. It moves to the back side of the main body 3, and is positioned at the end of the cam hole 25 on the back side of the device main body 3 at the release position described above.

  As shown in FIG. 4, the first recess 26a is provided in the arm body 23 of the first centering arm 20a. The first recess 26 a is provided in a concave shape from the inner edge of the central portion of the cam hole 25 and outside the width direction of the device body 3. For this reason, the 1st dent 26a makes the width | variety of the cam hole 25 wider than another part. The cam pin 22 can enter the first recess 26a. When the cam pin 22 enters the first recess 26a, the rotation of the arm body 23 of the first centering arm 20a is restricted (cannot be rotated).

  As shown in FIG. 5, the second recess 26b is provided in the arm body 23 of the second centering arm 20b. The second recess 26 b is provided in a concave shape from the inner edge in the width direction of the device body 3 at the center of the cam hole 25. For this reason, the 2nd dent 26b makes the width | variety of the cam hole 25 wider than another part. The cam pin 22 can enter the second recess 26b. When the cam pin 22 enters the second recess 26b, the rotation of the arm body 23 of the second centering arm 20b is restricted (cannot rotate).

  The first and second centering arms 20a and 20b when the cam pin 22 enters the first and second recesses 26a and 26b of the cam hole 25 provided in one of the first and second centering arms 20a and 20b. The distance between the protruding pins 24 is larger than the outer diameter of the small diameter CD2b described above and smaller than the outer diameter of the large diameter CD2a. Therefore, when the small-diameter CD2b is taken in and out of the device main body 3, the lock mechanism 7 has the first and second recesses 26a of the cam hole 25 provided in one of the first and second centering arms 20a and 20b. , 26b, the protruding pins 24 of the first and second centering arms 20a, 20b are separated from each other beyond the time when the cam pin 22 enters the arm 26, that is, the arm body 23 of the first and second centering arms 20a, 20b rotates. To regulate that.

  The first and second centering arms 20a when the cam pin 22 enters the first and second recesses 26a and 26b of the cam hole 25 provided in one of the first and second centering arms 20a and 20b. When the small diameter CD2b is positioned on the outside of the device body 3 in the width direction X with respect to the projecting pin 24 of the 20b, the small diameter CD2b is positioned outside the device body 3 and the reproduction position (the position where the clamp reproduction unit 6 can clamp the small diameter CD2b). ) Cannot be conveyed. The first and second centering arms 20a when the cam pin 22 enters the first and second recesses 26a and 26b of the cam hole 25 provided in one of the first and second centering arms 20a and 20b. , 20b is the boundary of the range in which the small-diameter CD2b can be taken in and out of the device main body 3.

  As described above, when the small-diameter CD2b is brought into and out of the apparatus main body 3, the lock mechanism 7 is in the case where the small-diameter CD2b is in contact with only one protruding pin 24 of the first and second centering arms 20a and 20b. Only the one protruding pin 24 is pushed in a direction away from the other protruding pin 24 from the small diameter CD2b. Then, the lock mechanism 7 has the cam pin 22 inserted into the first and second recesses 26a and 26b of the cam hole 25 provided in one of the first and second centering arms 20a and 20b, and the small-diameter CD2b is inserted. The protruding pins 24 of the first and second centering arms 20a, 20b are restricted from separating from each other beyond the range in which the apparatus main body 3 can be taken in and out.

  Thus, when only the protruding pin 24 of the first centering arm 20a is pressed away from the protruding pin 24 of the second centering arm 20b, the cam pin 22 enters and the large diameter CD 2a is inserted into and removed from the device body. The rotation of the arm body 23 of the first and second centering arms 20a and 20b is restricted until it is possible. The second recess 26b allows the cam pin 22 to enter and the large-diameter CD 2a to be taken in and out of the device body 3 when only the protruding pin 24 of the second centering arm 20b is pressed away from the protruding pin 24 of the first centering arm 20a. Until the arm main body 23 of the first and second centering arms 20a, 20b is rotated.

  The first and second centering arms 20a and 20b are provided on the first centering arm 20a when the first and second centering arms 20a and 20b are rotated from the initial position toward the release position. After the cam pin 22 has entered the first recess 26a of the cam hole 25, the first and second positions described above are located at positions where the cam pin 22 enters the second recess 26b of the cam hole 25 provided in the second centering arm 20b. Two recesses 26a and 26b are arranged. Thus, the rotation angle θ1 (shown in FIG. 6) of the arm body 23 of the first centering arm 20a from the initial position of the first centering arm 20a until the cam pin 22 enters the first recess 26a is the second. The rotation angle θ2 (shown in FIG. 7) of the arm main body 23 of the second centering arm 20b from the initial position of the centering arm 20b until the cam pin 22 enters the second recess 26b is formed.

  In the disk centering mechanism 4 having the above-described configuration, the first and second centering arms 20a and 20b are urged to the initial positions described above, and the outer edges of the CDs 2a and 2b are in contact with the protruding pins 24. The abutted CDs 2a and 2b are guided to the center in the width direction X of the CD player 1, and the CDs 2a and 2b inserted through the insertion slot 11 and inserted into the apparatus main body 3 are guided to the above-described reproduction position. That is, the disc centering mechanism 4 guides the moving direction of the CDs 2a and 2b.

  Further, the first and second centering arms 20a and 20b of the disc centering mechanism 4 are configured such that the outer edges of the CDs 2a and 2b that are inserted into and removed from the device body 3 through the insertion port 11 come into contact with the projecting pins 24. When it is inserted into and removed from the main body 3, it rotates relative to the bottom plate 14 of the chassis main body 10 in conjunction with the movement of the CDs 2a and 2b. In other words, the first and second centering arms 20a and 20b move relative to the device body 3 in conjunction with the movement of the CDs 2a and 2b when the CDs 2a and 2b are taken in and out of the device body 3.

  Further, as shown in FIG. 4, the cam hole 25 of the first centering arm 20a has a center line C1 at the end near the insertion port 11 with the first recess 26a as a boundary (shown by a dotted line in FIG. 4). And the center line C <b> 2 (shown by a dotted line in FIG. 4) of the end portion near the back of the device main body 3 are shifted from each other in the width direction of the cam hole 25. In the illustrated example, the center lines C1 and C2 are arranged in parallel to each other, and the center line C2 at the end near the back of the device body 3 is wider than the center line C1 at the end near the insertion port 11. It is arranged outside the direction X.

  Further, as shown in FIG. 5, the cam hole 25 of the second centering arm 20b has a center line C3 (shown by a dotted line in FIG. 5) at the end near the insertion port 11 with the second recess 26b as a boundary. And the center line C4 (shown by a dotted line in FIG. 5) of the end near the back of the device main body 3 are shifted from each other in the width direction of the cam hole 25. In the illustrated example, the center lines C3 and C4 are arranged in parallel to each other, and the center line C3 at the end near the insertion port 11 is wider than the center line C4 at the end near the back of the apparatus body 3. It is arranged outside the direction X.

  For this reason, when the large diameter CD 2a is discharged out of the device main body 3, the cam pin 22 extends from the end of the cam hole 25 of the first centering arm 20a on the back side of the device main body 3, that is, from the initial position to the first recess 26a. When the cam pin 22 slides on the inner edge facing the first recess 26a of the cam hole 25, and the cam pin 22 passes the first recess 26a, the cam pin 22 becomes the second of the cam hole 25 of the second centering arm 20b. It slides on the inner edge facing the two recesses 26b. As described above, the center line C1, C2, C3, C4 of the cam hole 25 is deviated from the first and second recesses 26a, 26b.

  Further, since the center lines C1, C2, C3 and C4 of the cam hole 25 are displaced as described above, the longitudinal direction of the arm body 23 of the first and second centering arms 20a and 20b is relative to the depth direction Y. The angle θ (shown in FIG. 3) is inclined. In the first centering arm 20a, the arm body 23 is inclined with respect to the depth direction Y so that the protruding pin 24 is located outside the width direction X of the device body 3, and in the second centering arm 20b, the protruding pin 24 is The arm body 23 is inclined with respect to the depth direction Y so as to be located inside the width direction X of the apparatus body 3.

  As shown in FIG. 3, the guide mechanism 8 includes a pair of guide members 27. The guide members 27 are respectively provided at both ends in the width direction of the device main body 3 and are fixed to the chassis main body 10 and the like. The pair of guide members 27 extend linearly along the depth direction Y, position the CDs 2a and 2b between each other, and guide the CDs 2a and 2b.

  The μCOM is connected to the above-described transport unit 5, the clamp reproduction unit 6, the interlocking mechanism, and a sensor such as a switch or an encoder that detects the rotation angle of one centering arm 20a of the disk centering mechanism 4. The operation is controlled to control the entire CD player 1.

  Next, the operation (operation) of the CD player 1 having the above-described configuration will be described. First, in a state where the CDs 2a and 2b are not inserted into the apparatus main body 3, the transport roller of the roller arm of the transport unit 5 and the disk guide 17 approach each other, and the carriage chassis and the clamp arm 18 of the clamp reproduction unit 6 mutually is seperated. Further, the disc centering mechanism 4 is positioned at the initial position shown in FIG.

  First, the user of the CD player 1 inserts the CDs 2 a and 2 b into the insertion slot 11. Then, the transport roller rotates and the CDs 2a and 2b are sandwiched between the transport roller rotated by the driving force of the motor (not shown) and the disc guide 17. Since the transport roller is rotating, the CDs 2 a and 2 b are transported between the carriage chassis and the clamp arm 18.

  At this time, when the small-diameter CD2b is inserted and this small-diameter CD2b comes into contact with only one projecting pin 24 of the first and second centering arms 20a and 20b, the cam pin 22 has the first recess 26a and the second recess. 26b, and the small-diameter CD2b is conveyed between the carriage chassis and the clamp arm 18 in a state where the rotation of the arm body 23 of the first and second centering arms 20a and 20b is restricted. .

  Further, when the large diameter CD2a is inserted, the large diameter CD2a comes into contact with the projecting pins 24 of both the first and second centering arms 20a and 20b, and the cam pin 22 is formed between the first recess 26a and the second recess 26b. Without entering into any of them, the rotation of the arm body 23 of the first and second centering arms 20a, 20b is not restricted, and the large-diameter CD 2a is transported between the carriage chassis and the clamp arm 18. .

  When the CDs 2a and 2b are positioned at the reproduction position, the interlocking mechanism brings the carriage chassis of the clamp reproduction unit 6 and the clamp arm 18 close to each other and separates the disk guide 17 of the conveyance unit 5 from the conveyance roller of the roller arm. Then, the clamp reproduction unit 6 clamps the CDs 2a and 2b between the clamper 19 and the rotary table, reads out the information of the CDs 2a and 2b, and outputs it as sound.

  When the CD player 1 finishes the reproduction of the CDs 2a and 2b and discharges the CDs 2a and 2b from the apparatus main body 3, the interlocking mechanism transports the disc guide 17 of the transport unit 5 and the roller arm. The rollers are brought close to each other, and the carriage chassis and the clamp arm 18 of the clamp reproduction unit 6 are separated from each other. Then, the conveyance rollers are driven to rotate, and the CDs 2a and 2b are discharged.

  At this time, when the small-diameter CD2b is ejected, if the small-diameter CD2b comes into contact with only one of the first and second centering arms 20a and 20b positioned at the initial position, the cam pin 22 The small-diameter CD2b is moved out of the device main body 3 in a state where the arm main body 23 of the first and second centering arms 20a and 20b is restricted from rotating into either the first dent 26a or the second dent 26b. Transport.

  Further, when the large diameter CD2a is discharged, even if the large diameter CD2 is in contact with the right guide member 27 by the rightmost side in the drawing, as shown in FIG. Since the longitudinal direction of the arm main body 23 of the arms 20a and 20b is inclined with respect to the depth direction Y by the angle θ described above, the protrusion of the second centering arm 20b positioned at the initial position as shown in FIG. The pin 24 comes into contact with the outer edge of the large diameter CD2a, and as shown in FIG. 10B, the protruding pin 24 of the first centering arm 20a positioned at the initial position is spaced from the outer edge of the large diameter CD2a. do not do). When the large-diameter CD2a is ejected, the projecting pin 24 of the second centering arm 20b is pressed outward in the width direction X of the device main body 3, and the projecting pin 24 of the arm body 23 of the second centering arm 20b is in the width direction. Rotate in the direction toward the outside of X.

  At this time, since the center lines C3 and C4 of the cam hole 25 provided in the arm main body 23 of the second centering arm 20b described above are displaced as described above, as shown in FIG. The cam pin 22 slides on the inner edge near the second recess 26b of the cam hole 25 of the centering arm 20b, and the arm main body 23 of the second centering arm 20b is pulled to the left in FIG. When the link lever 21 is pulled to the left in FIG. 8, the center lines C1 and C2 of the cam hole 25 provided in the arm body 23 of the first centering arm 20a described above are displaced as described above. As shown in FIG. 9B, the cam pin 22 slides on the inner edge of the cam hole 25 of the first centering arm 20a facing the first recess 26a, and the arm body 23 of the first centering arm 20a protrudes. The pin 24 rotates in the direction toward the outside in the width direction X. Thus, as shown in FIGS. 10B and 11, the first and second centering are performed in the direction in which the projecting pins 24 move away from each other without the projecting pins 24 of the first centering arm 20 a contacting the outer edge of the large-diameter CD 2 a. The arm main body 23 of the arm 20b rotates.

  Even if the first recess 26a of the first centering arm 20a and the cam pin 22 are positioned at a position, the cam pin 22 faces the first recess 26a of the cam hole 25 as shown in FIG. Slide to the inner edge. At this time, the cam pin 22 in the cam hole 25 of the second centering arm 20b is located in the end of the cam hole 25 near the insertion port 11, and as shown in FIG. It slides on the inner edge near 26b. Then, as shown in FIG. 13A, the protruding pin 24 of the second centering arm 20b contacts the outer edge of the large diameter CD 2a, and as shown in FIG. 13B, the protruding pin 24 of the first centering arm 20a. Without contacting the outer edge of the large-diameter CD2a, the arm body 23 of the first and second centering arms 20b rotates in the direction in which the protruding pins 24 are separated from each other.

  Further, when the large diameter CD 2a is discharged to the outside of the device body 3 and the cam pin 22 in the cam hole 25 of the first centering arm 20a exceeds the first recess 26a, the cam hole 25 of the second centering arm 20b The cam pin 22 once enters the second recess 26b. Then, the link lever 21 is not pulled to the left in FIG. 14, and the rotation of the arm main body 23 of the first and second centering arms 20b is temporarily stopped. Then, as shown in FIG. 16 (b), the large diameter CD 2 a comes into contact with the protruding pin 24 of the first centering arm 20 a and presses the protruding pin 24 toward the outside in the width direction X of the device main body 3. Then, the arm main body 23 of the first centering arm 20a rotates and the center lines C1 and C2 of the cam hole 25 of the first centering arm 20a are displaced as described above, so that the cam hole 25 of the first centering arm 20a is displaced. The inner cam pin 22 slides on the inner edge of the cam hole 25 near the first recess 26a, as shown in FIG.

  Then, the link lever 21 is pressed to the left in FIG. 14 through the inner edge of the cam hole 25 and the cam pin 22 by the rotation of the first centering arm 20a. Then, the link lever 21 moves to the left in FIG. 14, and the cam pin 22 in the cam hole 25 of the second centering arm 20b comes out of the second recess 26b, and as shown in FIG. It is pressed against the inner edge of the hole 25 facing the second recess 26b. Then, the cam pin 22 in the cam hole 25 of the second centering arm 20b presses the arm main body 23 of the second centering arm 20b outward in the width direction X of the device main body 3, and the protruding pin 24 is outside the device main body 3. Rotate to head towards. And as shown to Fig.16 (a), the protrusion pin 24 of the 2nd centering arm 20b will leave a space | interval from the outer edge of large diameter CD2a.

  Then, as shown in FIG. 18A, the cam pin 22 in the cam hole 25 of the second centering arm 20b slides on the inner edge facing the second recess 26b, and as shown in FIG. The cam pin 22 in the cam hole 25 of the first centering arm 20a slides on the inner edge near the first recess 26a, and as shown in FIG. 19A, the protruding pin 24 of the second centering arm 20b has a large diameter CD2a. As shown in FIG. 19B, the large-diameter CD2a is ejected as shown in FIG. 17 with the protruding pin 24 of the first centering arm 20a in contact with the outer edge of the large-diameter CD2a. To go. In this way, the large-diameter CD 2 a is transported toward the outside of the device main body 3.

  According to the present embodiment, when discharging the large diameter CD 2a, the cam pin 22 slides on the inner edge of the cam hole 25 of the first centering arm 20a facing the first recess 26a during the period from the initial position to the first recess 26a. The center line C1, C2, C3 of the cam hole 25 so that the cam pin 22 slides to the inner edge opposite to the second recess 26b of the second centering arm 20b cam hole 25 when it moves and passes the first recess 26a. , C4 are shifted with respect to the first and second recesses 26a, 26b. For this reason, when the large diameter CD 2a is ejected, the cam pin 22 can be prevented from entering and locking into the first and second recesses 26a and 26b, and the first and second centering arms 20a, 20a, It is possible to prevent the rotation of the arm main body 23 of 20b from being restricted and the large diameter CD 2a from being discharged out of the apparatus main body 3. Therefore, even when foreign matter adheres to the transport roller due to secular change, or when the large-diameter CD 2a to be discharged is always in only one direction of the width direction X due to component tolerance, the large-diameter CD 2a is surely placed outside the device main body 3. Can be discharged.

  Further, the lock mechanism 7 is provided with cam holes 25 in the centering arms 20 a and 20 b and cam pins 22 at both ends of the link lever 21. For this reason, in addition to being able to reliably eject the large-diameter CD 2a to the outside of the device main body 3, the centering arms 20a and 20b can be rotated synchronously by the single link lever 21, so the number of parts Can be prevented from increasing.

  Next, a CD player 1 according to a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  In the present embodiment, a pair of link levers 21 are provided. The pair of link levers 21 are rotatably connected to the other end portions of the arm main body 23 of the first and second centering arms 20, respectively. The link levers 21 are rotatably connected to each other by a connecting pin 30 as a cam pin.

  In the present embodiment, the lock mechanism 7 includes the above-described connecting pin 30 as a cam pin, a cam hole 31, and first and second recesses 26a and 26b, as shown in FIG. The connecting pin 30 is formed in a cylindrical shape.

  In the present embodiment, only one cam hole 31 is provided, and is provided in the bottom plate 14 of the chassis body 10. The cam hole 31 is provided between the first and second centering arms 20a and 20b and in the center in the width direction X of the bottom plate 14 of the chassis main body 10 of the device main body 3, and of course passes through the bottom plate 14 of the chassis main body 10. Yes. The cam hole 31 has a width that is greater than the width of the connecting pin 30, that is, the outer diameter, over the entire length thereof.

  The cam hole 31 includes a first straight part 32, a second straight part 33, and an inclined part 34. The first straight portion 32 and the second straight portion 33 extend linearly along the depth direction Y of the device main body 3, and the first straight portion 32 is closer to the device main body 3 than the second straight portion 33. It is provided on the back side. The first straight portion 32 is disposed closer to the second centering arms 20a and 20b than the intermediate position between the first and second centering arms 20a and 20b, and the second straight portion 33 is composed of the first and second centering arms. It is arranged closer to the first centering arm 20a than the intermediate position of 20b. The inclined portion 34 extends linearly by connecting the first straight portion 32 and the second straight portion 33.

  The first recess 26a is provided at the intersection of the first linear portion 32 and the inclined portion 34, and is formed in a recess from the inner edge of the cam hole 31 on the side away from the first centering arm 20a. The second recess 26b is provided at the intersection of the second linear portion 33 and the inclined portion 34, and is formed in a recess from the inner edge of the cam hole 31 on the side away from the second centering arm 20b. Therefore, the second recess 26b is provided closer to the insertion opening 11 than the first recess 26a. Further, since the straight portions 32 and 33 are arranged as described above and the recesses 26a and 26b are arranged at the positions described above, the center lines C5 and C6 (shown by dotted lines in FIG. 21) of the cam hole 31 are The dents 26a and 26b are offset from each other. The center line C <b> 5 is the center line of the first straight part 32, and the center line C <b> 6 is the center line of the second straight part 33.

  The lock mechanism 7 of the present embodiment is a connecting pin that connects the link levers 21 together when one of the first and second centering arms 20a, 20b is pushed away from the other protruding pin 24. 30 enters into one of the recesses 26a and 26b. The lock mechanism 7 prevents the protruding pins 24 of the first and second centering arms 20a and 20b from separating from the state in which the connecting pin 30 has entered the recesses 26a and 26b. That is, when the locking pin 7 is pressed in a direction in which only one of the first and second centering arms 20a and 20b is separated from the other protruding pin 24, the connecting pin 30 is recessed in the recesses 26a and 26b. The arm main body 23 of the pair of centering arms 20a and 20b is controlled until the large-diameter CD 2a can be taken in and out of the apparatus main body 3 by restricting the rotation of the arm main body 23 from the state of entering into the apparatus main body 3 as described above. Regulates rotation.

  In the CD player 1 of the present embodiment, when the large-diameter CD 2a is discharged out of the device main body 3, the longitudinal direction of the arm main body 23 of the first and second centering arms 20a, 20b is the same as the depth direction Y described above. Since it is inclined in the same manner as in the first embodiment, as shown in FIG. 22, the projecting pin 24 of the second centering arm 20b positioned at the initial position contacts the outer edge of the large diameter CD 2a and is positioned at the initial position. Further, the protruding pin 24 of the first centering arm 20a is spaced apart from (not in contact with) the outer edge of the large-diameter CD2a. When the large-diameter CD2a is ejected, the projecting pin 24 of the second centering arm 20b is pressed outward in the width direction X of the device main body 3, and the projecting pin 24 of the arm body 23 of the second centering arm 20b is in the width direction. Rotate in the direction toward the outside of X.

  At this time, the center lines C5 and C6 of the cam hole 31 provided in the arm body 23 of the second centering arm 20b described above are displaced as described above, and further, due to the rotation of the arm body 23 of the second centering arm 20b. Since the connecting pin 30 is pressed to the left in FIG. 22, as shown in FIG. 23, the connecting pin 30 slides on the inner edge of the cam hole 31 near the second recess 26b and facing the first recess 26a. Thus, the connecting pin 30 moves toward the insertion port 11. Then, the first centering arm 20a is pulled from the connecting pin 30 and the link lever 21 so that the protruding pin 24 faces the outside in the width direction X while the protruding pin 24 is spaced from the outer edge of the large diameter CD2a. The arm body 23 of the first centering arm 20a rotates.

  Then, when the connecting pin 30 enters the second linear portion 33 through the inclined portion 34, the connecting pin 30 once enters the second recess 26b. Then, the link lever 21 is not pulled as described above, and the rotation of the arm main body 23 of the first and second centering arms 20b is temporarily stopped. Then, the large diameter CD 2 a comes into contact with the protruding pin 24 of the first centering arm 20 a and presses the protruding pin 24 toward the outside in the width direction X of the device main body 3. Then, the arm main body 23 of the first centering arm 20a rotates to press the connecting pin 30 to the right side in FIG. 24, and the center lines C5 and C6 of the cam hole 31 are displaced as described above. As shown in FIG. 25, the connecting pin 30 in the hole 31 slides out from the second recess 26b and slides on the inner edge of the cam hole 31 that is close to the first recess 26a and that faces the second recess 26b.

  Then, due to the rotation of the first centering arm 20a, the cam pin 22 moves in the cam hole 31 toward the insertion port 11, and is pulled from the link lever 21, so that the protruding pin 24 of the second centering arm 20b is connected to the device body 3. The arm main body 23 of the second centering arm 20b rotates so as to go outward. Then, as shown in FIG. 24, the protruding pin 24 of the second centering arm 20b is spaced from the outer edge of the large diameter CD2a. In this way, the large-diameter CD 2 a is transported toward the outside of the device main body 3.

  Also in this embodiment, when discharging the large-diameter CD2a as in the first embodiment described above, the connecting pin 30 is relative to the first recess 26a of the cam hole 31 during the period from the initial position to the first recess 26a. The center line C5 of the cam hole 31 so that the cam pin 22 slides to the inner edge of the cam hole 31 facing the second recess 26b after passing through the first recess 26a and the second recess 26b. , C6 are shifted with respect to the first and second recesses 26a, 26b. For this reason, when the large diameter CD 2a is ejected, the cam pin 22 can be prevented from entering and locking into the first and second recesses 26a and 26b, and the first and second centering arms 20a, 20a, It is possible to prevent the rotation of the arm main body 23 of 20b from being restricted and the large diameter CD 2a from being discharged out of the apparatus main body 3. Therefore, even when foreign matter adheres to the transport roller due to secular change, or when the large-diameter CD 2a to be discharged is always in only one direction of the width direction X due to component tolerance, the large-diameter CD 2a is surely placed outside the device main body 3. Can be discharged.

  Furthermore, according to the present embodiment, the lock mechanism 7 is provided with the cam hole 31 in the device main body 3 and the first recess 26 a and the second recess 26 b at the inner edge of the cam hole 31. For this purpose, the large-diameter CD 2 a can be reliably discharged out of the device body 3, and only one cam hole 31 is provided, and the first and second recesses 26 a and 26 b are provided in the one cam hole 31. Since it forms integrally, it can prevent the man-hour required for a process.

In the above-described embodiment, CDs 2a and 2b as disk-type recording media are shown as the recording media. However, in the present invention, for example, MD (Mini Disc) as a recording medium
Other recording media such as DVD (Digital Versatile Disc) may be used. In the present invention, recording media having various shapes are not limited to the disk shape.

  In the above-described embodiment, the CD player 1 that reads information (reproduces information) from the recording medium is shown. However, the present invention is not limited to an information processing apparatus that reads information from a recording medium, and may be applied to, for example, a recording apparatus that records information on a recording medium or an information recording / reproducing apparatus that reproduces and records information. good.

In addition, the Example mentioned above only showed the typical form of this invention, and this invention is not limited to an Example. That is, various modifications can be made without departing from the scope of the present invention.

  According to the embodiment described above, the following CD player 1 is obtained.

(Supplementary Note) In the CD player 1 that reads out information recorded on the CD 2a and CD 2b by inserting and removing the large-diameter CD 2a and the small-diameter CD 2b having different sizes from each other in the apparatus main body 3.
An arm main body 23 rotatably supported by the apparatus main body 3 and a protrusion provided at one end of the arm main body 23 near the insertion port 11 of the apparatus main body 3 so as to contact both the large diameter CD 2a and the small diameter CD 2b. A first centering arm 20a having a pin 24;
An arm main body 23 that is disposed at an interval in the width direction X of the first centering arm 20 a and the device main body 3 and is rotatably supported by the device main body 3, and the arm main body 23 near the insertion port 11. A second centering arm 20b having a projecting pin 24 provided at one end and capable of contacting both the large diameter CD2a and the small diameter CD2b;
A link lever 21 for synchronizing and rotating the arm main body 23 of the first centering arm 20a and the second centering arm 20b;
A coil spring 28 that biases the protruding pins 24 of the first centering arm 20a and the second centering arm 20b toward each other;
Cam holes 25 and 31, cam pins 22 and 30 that move in the cam holes 25 and 31 in conjunction with rotation of the first centering arm 20a and the second centering arm 20b, and inner edges of the cam holes 25 and 31 And when only the projecting pin 24 of the first centering arm 20a is pressed away from the projecting pin 24 of the second centering arm 20b, the cam pins 22 and 30 enter and the large diameter CD2a is inserted into the large diameter CD2a. A first recess 26a that restricts rotation of the arm body 23 of the first and second centering arms 20a, 20b until it can be inserted into and removed from the apparatus body 3 and a recess from the inner edge of the cam holes 25, 32 are formed. In addition, only the protruding pin 24 of the second centering arm 20b is separated from the protruding pin 24 of the first centering arm 20a. When pressed in the direction, the cam bodies 22 and 30 enter and the arm body 23 of the first and second centering arms 20a and 20b rotates until the large diameter CD 2a can be inserted into and removed from the apparatus body 3. The arm body 23 of the first centering arm 20a from the initial position of the first centering arm 20a until the cam pins 22, 30 enter the first recess 26a. The rotation angle θ1 is smaller than the rotation angle θ2 of the arm body 23 of the second centering arm 20b from the initial position of the second centering arm 20b until the cam pins 22 and 3 enter the second recess 26b. A locking mechanism 7 is provided.
When the large diameter CD 2a is ejected, the cam pins 22, 30 are located on the inner edge of the cam hole 25 facing the first recess 26a while the cam pins 22, 30 reach the first recess 26a from the initial position. When the cam pins 22 and 30 pass through the first recess 26a, the cam holes 22 and 30 slide to the inner edge of the cam hole 25 opposite to the second recess 26b. A CD player 1 is characterized in that center lines C1, C2, C3, C4, C5, and C6 are deviated from the first and second recesses 26a and 26b.

  According to the supplementary note, when discharging the large diameter CD 2a, the cam pin 22 slides to the inner edge of the cam hole 25 of the first centering arm 20a facing the first recess 26a during the period from the initial position to the first recess 26a. When the first recess 26a is passed, the cam pins 22 are slid to the inner edge of the second centering arm 20b cam hole 25 opposite to the second recess 26b, so that the center lines C1, C2, C3, C4 of the cam hole 25 Are shifted with respect to the first and second recesses 26a and 26b. For this reason, when the large diameter CD 2a is ejected, the cam pin 22 can be prevented from entering and locking into the first and second recesses 26a and 26b, and the first and second centering arms 20a, 20a, It can be prevented that the rotation of the arm body 23 of 20b is restricted and the large-diameter CD 2a cannot be discharged out of the apparatus body 3. Therefore, even when foreign matter adheres to the transport roller due to secular change, or when the large-diameter CD 2a to be discharged is always in only one direction of the width direction X due to component tolerance, the large-diameter CD 2a is surely placed outside the device main body 3. Can be discharged.

1 CD player (information processing device)
2a Large diameter CD (large diameter recording medium)
2b Small-diameter CD (small-diameter recording medium)
DESCRIPTION OF SYMBOLS 3 Apparatus main body 7 Lock mechanism 11 Insertion port 20a 1st centering arm 20b 2nd centering arm 21 Link lever 22 Cam pin 23 Arm main body 24 Projection pin 25 Cam hole 26a 1st dent 26b 2nd dent 28 Coil spring (biasing means)
30 Connecting pin (cam pin)
31 Cam hole C1, C2, C3, C4, C5, C6 Center line θ1, θ2 Rotation angle X Width direction

Claims (3)

In an information processing apparatus that reads and writes information recorded on these recording media by putting a large-diameter recording medium and a small-diameter recording medium having different sizes into and out of the apparatus main body,
An arm main body rotatably supported by the apparatus main body, and a projecting pin provided at one end of the arm main body near the insertion opening of the apparatus main body and capable of contacting both the large diameter recording medium and the small diameter recording medium. A first centering arm having;
An arm main body disposed at a distance in the width direction of the first centering arm and the device main body and rotatably supported by the device main body, and provided at one end of the arm main body near the insertion port and the large main body. A second centering arm having a projecting pin capable of contacting both the diameter recording medium and the small diameter recording medium;
A link lever for synchronizing and rotating the arm bodies of the first centering arm and the second centering arm;
An urging means for urging the protruding pins of the first centering arm and the second centering arm toward each other;
A cam hole, a cam pin that moves in the cam hole in conjunction with the rotation of the first centering arm and the second centering arm, and a protruding pin of the first centering arm that is recessed from the inner edge of the cam hole When only the first centering arm is pressed away from the projecting pin of the second centering arm, the arm body of the first and second centering arms moves until the cam pin enters and the large-diameter recording medium can be taken in and out of the device body. A first recess that restricts rotation and a recess formed from the inner edge of the cam hole and when only the protruding pin of the second centering arm is pressed away from the protruding pin of the first centering arm, the cam pin Arms of the first and second centering arms until the large-diameter recording medium can be taken in and out of the main body of the apparatus by intruding A rotation angle of the arm body of the first centering arm from the initial position of the first centering arm until the cam pin enters the first recess. A locking mechanism formed smaller than the rotation angle of the arm body of the second centering arm from the initial position of the second centering arm until the cam pin enters the second recess,
When the large-diameter recording medium is discharged, the cam pin slides to the inner edge of the cam hole facing the first recess while the cam pin reaches the first recess from the initial position, and the cam pin After passing through the first recess, the cam hole is centered on the first and second recesses so that the cam pin slides on the inner edge of the cam hole facing the second recess. An information processing apparatus characterized in that lines are shifted.   2. The information processing according to claim 1, wherein the lock mechanism includes the cam hole provided in each of the first centering arm and the second centering arm, and the cam pins provided at both ends of the link lever. apparatus.   The locking mechanism includes the cam hole provided in the device main body, the first recess provided in an inner edge of the cam hole on the side away from the first centering arm, and the second recess provided in the second of the cam hole. The information processing apparatus according to claim 1, wherein the information processing apparatus is provided at an inner edge on a side away from a centering arm and closer to the insertion opening than the first recess.

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