JP2008047207A - Information processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processor capable of surely inserting/ejecting a recording medium into/from a device main body even when the number of components of a guiding means is reduced. <P>SOLUTION: A CD player 1 as an information processor inserts/ejects large and small-diameter CD's 2a and 2b into/from a device main body 3 to read information recorded therein. The CD player 1 is provided with a disk centering mechanism 4 for guiding the moving directions of the CD's 2a and 2b. The disk centering mechanism 4 is provided with a pair of centering arms 11 and 12, a link lever 13, and a coil spring 14. The centering arms 11 and 12 are rotatably supported in the device main body 3. The link lever 13 interlocks and rotates the centering arms 11 and 12. The coil spring 14 presses the link lever 13 in a direction where the projected pins 17 of the centering arms 11 and 12 approach each other. <P>COPYRIGHT: (C)2008,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, a CD player 100 (see FIG. 1 and refer to Patent Document 1) as an information processing apparatus is attached to an instrument panel (hereinafter referred to as instrument panel) of a car as a moving body. The CD player 100 reads information recorded by a recording medium such as a Compact Disc (hereinafter referred to as a CD).

  As shown in FIG. 1, the CD player 100 includes a device main body 101 attached to the instrument panel, a recording medium insertion opening opened in the device main body 101, a transport unit, and a disc centering mechanism 102 as guide means. A playback unit for reading information recorded on the CD is provided. The device main body 101 includes a box-shaped chassis 103 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 playback position, or transports the CD from the playback position to the recording medium insertion slot and ejects the CD from the apparatus main body 101. 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.

  As shown in FIG. 1, the disk centering mechanism 102 includes an engagement hole 104, a pair of centering arms 105, a pair of link arms 106, a connecting pin 107, and a coil spring 108 as an urging means. . The disk centering mechanism 102 is disposed in the vicinity of the recording medium insertion slot. The engagement hole 104 is provided at the center of the bottom plate 103a of the chassis 103 of the device main body 101, and extends linearly along the conveyance direction of the CD that is inserted into and removed from the device main body 101 through the recording medium insertion port. At the center of the engagement hole 104, there is provided a recess 104a formed as a recess from both inner edges of the engagement hole 104, as if the width of the engagement hole 104 is wider than the other part.

  The pair of centering arms 105 are arranged at a distance from each other along the width direction of the device main body 101. The pair of centering arms 105 includes an arm main body 109 that is rotatably supported by the chassis 103 of the device main body 101 such that one end portion near the recording medium insertion opening approaches or separates from each other. And a projecting pin 110 projecting from one end near the recording medium insertion port.

  One end of the pair of link arms 106 is rotatably connected to the other end of the arm body 109 of the centering arm 105. The connecting pin 107 rotatably connects the other ends of the link arm 106 and enters the engaging hole 104 described above. The coil spring 108 urges the one end portion of the arm main body 109 of the centering arm 105, that is, the protruding pin 110 in a direction approaching each other.

  In the disk centering mechanism 102, the centering arm 105 is rotated with respect to the chassis 103 of the device main body 101 by the link arm 106 and the arm main body 109 being interlocked with each other.

  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 101 through the recording medium insertion slot, the CD first contacts the protruding pin 110. 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 109 gradually rotates in the direction in which the protruding pins 110 are separated from each other. The protruding pins 110 of the pair of centering arms 105 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.

  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 101, first, the rotation of the rotary table is stopped. The transport roller of the transport unit is rotated in the direction opposite to the previous direction, and the CD is gradually transported from the device main body 101 to the outside of the device main body 101 through the recording medium insertion slot.

  At this time, the protruding pin 110 comes into contact with the CD. The projecting pins 110 of the pair of centering arms 105 move away from each other or approach (separate from each other) as the CD is ejected. The projecting pins 110 of the pair of centering arms 105 guide the CD ejection direction.

  The CD player 100 described above reproduces information recorded on a plurality of types of CDs having different outer diameters. In the CD player 100 including the centering arm 105 and the like described above, when a relatively small-diameter CD is inserted near the end of the recording medium insertion slot, only one protruding pin 110 of the pair of centering arms 105 contacts. There is. In this case, the connecting pin 107 described above enters the recess 104a and the rotation of the centering arm 105 is restricted. The projecting pin 110 is fixed by restricting the rotation of the centering arm 105, and the CD is centered in the width direction of the device main body 101 by being inserted while contacting the projecting pin 110.

  In the CD player 100 described above, when a relatively large-diameter CD is inserted into the recording medium insertion slot, both the protruding pins 110 of the pair of centering arms 105 come into contact. In this case, the connecting pin 107 described above does not enter the recess 104a, and the rotation of the centering arm 105 is not restricted. Then, the CD is inserted in a stable state with respect to the width direction of the apparatus main body 101 by being inserted while being in contact with both protruding pins 110.

As described above, the conventional CD player 100 having the disk centering mechanism 102 described above is centered beyond the state where the connecting pin 107 has entered the recess 104a when a relatively small-diameter CD is inserted into or removed from the apparatus main body 101. By restricting the protruding pins 110 of the arm 105 from separating from each other, the relatively small-diameter CD can be reliably put in and out of the apparatus main body 101. Further, in the conventional CD player 100, when a relatively large CD is taken in and out of the apparatus main body 101, the protruding pins 110 of the centering arm 105 are separated from each other beyond the state where the connecting pin 107 has entered the recess 104a. Accordingly, the relatively large-diameter CD can be reliably inserted into and removed from the apparatus main body 101.
JP 2002-313007 A

  The disc centering mechanism 102 of the CD player 100 described above requires parts such as a pair of centering arms 105, a pair of link arms 106, one connecting pin 107, and a coil spring 108 as one biasing means. The number of parts tended to increase. For this reason, the above-described conventional disk centering mechanism 102 has a tendency to increase the labor required for assembling and increase the required man-hours. Further, the position where the protruding pin 110 is fixed, that is, the position where the rotation of the centering arm 105 is restricted is determined via the link arm 106 from the position where the connecting pin 107 enters the recess 104a. The accumulated dimensional errors of the components tend to cause variations in the position where the protruding pin 110 is fixed.

  Therefore, an object of the present invention is to provide an information processing apparatus that can reliably insert / remove a recording medium into / from an apparatus main body even when, for example, the number of parts of a guide means is suppressed.

  In order to solve the above problems and achieve the object, an information processing apparatus according to the present invention includes a large-sized recording medium and a small-sized recording medium that are different in size from each other. An information processing apparatus for reading information recorded on a recording medium, comprising: guide means for guiding a moving direction of the large recording medium and the small recording medium, wherein the guiding means is inserted through the recording medium provided in a device body. An arm main body rotatably supported by the device main body so that one end portions near the mouth can be brought into contact with and separated from each other, and contact with both the large recording medium and the small recording medium provided at one end portion of the arm main body A pair of centering arms having a projecting pin capable of being slidably supported by the device main body along a direction intersecting the direction in which the recording medium is put in and out, and one of the centering arms. A link lever connecting a location closer to the other end than the center of rotation of the arm body of the talling arm and a location closer to the one end than the center of rotation of the arm body of the other centering arm; and And a biasing means biased in a direction in which the projecting pins of the pair of centering arms approach each other.

  Hereinafter, an information processing apparatus according to an embodiment of the present invention will be described. An information processing apparatus according to an embodiment of the present invention uses a link lever to connect a location closer to the other end than the rotation center of one centering arm and a location closer to one end than the rotation center of the other centering arm. By doing so, it is possible to rotate the pair of centering arms in conjunction with one link lever, and it is possible to reduce the number of parts of the guide means.

  A restriction allowing means may be further provided, and the restriction allowing means may include a convex portion protruding from one of the centering arm and the link lever and a cam groove portion provided on the other. In this case, since the pair of centering arms can be rotated by the projection and the cam groove portion where the projection moves inward, an increase in the number of parts at the connecting portion between the centering arm and the link lever can be prevented.

  A recess is provided on the inner edge of the central portion of the cam groove when the protrusion is inserted when one of the protruding pins of the pair of centering arms is pushed into the restriction permitting means and the rotation of the centering arm is restricted. Also good. In this case, since the rotation of the centering arm can be restricted only by providing a recess at the inner edge of the cam groove, the small recording medium can be reliably guided without increasing the number of parts.

  The rotation angles of the centering arms until the convex portions of the pair of centering arms enter the recess of the cam groove may be different from each other. In this case, it is possible to prevent the rotation of both centering arms at the same time, so that a large recording medium can be taken in and out reliably.

  Hereinafter, a CD player 1 as an example of an information processing apparatus according to an embodiment of the present invention will be described with reference to FIGS. A CD player 1 shown in FIGS. 2 and 3 is attached to an automobile instrument panel (hereinafter referred to as an instrument panel) as a moving body, and has a relatively large outer diameter of, for example, 12 cm. The user selects a large-diameter CD2a and a small-diameter CD2b as a small recording medium having a relatively small outer diameter of, for example, 8 cm, and accommodates the CD2a in a device 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 FIG. 3 and the like, the CD player 1 includes a device main body 3 (shown in FIG. 2 and the like), a transport unit as a transport unit (not shown), a clamp playback unit as a clamp playback unit (not shown), and an interlocking (not shown). A mechanism, a disk centering mechanism 4 as a guide means, and a CPU as a control means (not shown) are provided. In the following, the arrow Y in FIG. 1 parallel to both the surface of the CD 2a, 2b and the transport direction K of the CD 2a, 2b of the transport unit 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 device main body 3 includes an outer case 5 (shown in FIG. 2) and a chassis 6 (shown in FIG. 3). The outer case 5 is made of a synthetic resin and is formed in a flat box shape. The outer case 5 forms an outer shell of the CD player 1. When attached to the above-described instrument panel of the outer case 5, only one insertion port 7 through which the CDs 2a and 2b can be taken in and out is provided on the front surface 5a (shown in FIG. 2) facing the occupant. The front surface 5a is one surface of the device main body 3 exposed to the outside of the instrument panel when the outer case 5, that is, the CD player 1, is attached to the instrument panel.

  The insertion port 7 passes through the outer wall of the outer case 5. The insertion slot 7 can pass the CDs 2a and 2b inside. Through the insertion opening 7, the CDs 2 a and 2 b are accommodated in the outer case 5, that is, the device body 3, or discharged from the outer case 5, that is, the device body 3. That is, the insertion port 7 communicates the inside and outside of the device body 3 so that the CDs 2a and 2b can be inserted into and removed from the device body 3.

  Further, on the front surface 5a described above, a fluorescent display tube 8 as a display panel and various switches 9 are provided.

  The fluorescent display tube 8 is exposed to the front surface 5a and has a display surface as a display area for displaying various information to the user. The fluorescent display tube 8 displays information such as the name of the program being reproduced on the display surface.

  The various switches 9 constitute an operation unit for the user to operate. When the switch 9 is operated by a user or the like, for example, selection of a program of the CDs 2a and 2b to be reproduced by the clamp reproduction unit, and insertion and removal of these CDs 2a and 2b are performed.

  The chassis 6 is accommodated in the outer case 5 and is fixed to the outer case 5. As shown in FIG. 3 and the like, the chassis 6 includes a bottom plate 10, a pair of side plates, and a ceiling plate. The bottom plate 10, the pair of side plates, and the ceiling plate are each made of sheet metal or the like.

  The bottom plate 10 is overlaid on the inner surface of the bottom wall of the outer case 5. The pair of side plates is erected from both edges in the width direction of the bottom plate 10. The pair of side plates are arranged in parallel with a space therebetween. The ceiling plate is arranged in parallel with the bottom plate 10 with a space therebetween, and is connected to both of the pair of side plates.

  The transport unit includes a roller arm and a disk guide. 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 disc guide are provided so as to be able to contact and separate from each other. In the transport unit, the roller arm and the disk guide 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 is parallel to both surfaces of the CDs 2a and 2b, and is in a direction K (shown by an arrow in FIG. 3 and indicated in the claims) in which the insertion slot 7 and a reproduction position to be described later are stepped on. The CDs 2a and 2b are transported along a corresponding direction. Further, when the clamp reproduction unit clamps the CDs 2a and 2b and reads the information on the CDs 2a and 2b, the transport unit does not interfere with the operation of the clamp reproduction unit by separating the roller arm and the disk guide from each other.

  The clamp reproduction unit includes a carriage chassis and a clamp arm which 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 is attached to the clamp arm 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 and the positions of the CDs 2a and 2b that can be sandwiched between the rotary table and the clamper are set as the playback position. . Further, between the insertion slot 7 and the reproduction position, there is a conveyance path for the CDs 2a and 2b.

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

  When the CD 2a, 2b is transported, the interlocking mechanism brings the disk guide of the transport unit and the transport roller of the roller arm close to each other, and keeps the carriage chassis and the clamp arm away from each other. When the CD2a and 2b are positioned at the reproduction position by the transport unit, the interlocking mechanism sandwiches the CD2a and 2b between the rotary table and the clamper by bringing the carriage chassis and the clamp arm close to each other, and the disk guide and roller of the transport unit The arm conveyance rollers are kept away from each other, and the disc guide and the roller arm conveyance rollers are prevented from interfering with the CDs 2a and 2b. In this way, the interlocking mechanism interlocks the operations of the transport unit and the clamp reproduction unit.

  As shown in FIG. 3, the disk centering mechanism 4 includes a pair of centering arms 11 and 12, one link lever 13, a coil spring 14 as an urging means, and a restriction allowing portion 15 as a restriction allowing means. I have.

  The pair of centering arms 11 and 12 are respectively disposed in the vicinity of the insertion port 7. The pair of centering arms 11 and 12 are arranged at intervals from each other along the width direction X, that is, the longitudinal direction of the insertion port 7.

  Each of the pair of centering arms 11 and 12 includes a belt-like arm body 16 and a protruding pin 17. The arm main body 16 of each of the pair of centering arms 11 and 12 is rotatably supported by the bottom plate 10 of the chassis 6 so that the one end portions 11a and 12a near the insertion port 7 approach or leave (separate from each other). Yes.

  Of the pair of centering arms 11 and 12, the arm main body 16 of one centering arm 11 located on the right side in FIG. 3 is provided so as to be rotatable around the central portion in the longitudinal direction. Of the pair of centering arms 11, 12, the arm body 16 of the other centering arm 12 located on the left side in FIG. 3 is rotatably provided around the other end 12 b located on the back side of the device body 3. ing.

  The arm main body 16 of the pair of centering arms 11 and 12 described above has an initial position in which the longitudinal direction shown in FIGS. 2 and 3 is along the transport direction K, and the one end portions 11a and 12a are farthest from each other. The base plate 10 is rotatably supported by the bottom plate 10 so as to be displaceable over the disengaged position.

  The protruding pin 17 protrudes from the one end portions 11 a and 12 a of the arm body 16 toward the inside of the ceiling plate, that is, the insertion port 7. The protruding pin 17 is formed in a cylindrical shape.

  The link lever 13 is formed in a strip shape extending linearly. The link lever 13 is overlapped on the bottom plate 10 with its longitudinal direction parallel to the width direction X, and is slidable along a direction that intersects the width direction X, that is, the conveyance direction K (orthogonal in the illustrated example). It is supported by the bottom plate 10. One end 13a of the link lever 13 is connected to the other end 11b of the device main body 3 of the arm main body 16 of the one centering arm 11 and the other end 13b of the link lever 13 is described above. The other centering arm 12 is connected to the central portion of the arm body 16 in the longitudinal direction. In this way, the link lever 13 is moved by the restriction allowing portion 15 at a position closer to the other end portion 11b than the rotation center of the arm body 16 of one centering arm 11 and the rotation center of the arm body 16 of the other centering arm 12. In addition, the portion closer to the one end portion 12a is connected.

  With the above-described configuration, the link lever 13 slides with respect to the bottom plate 10 along the width direction X so that the one end portions 11a and 12a are separated from each other and the one end portions 11a and 12a are close to each other. The arm main bodies 16 of the pair of centering arms 11 and 12 are rotated in synchronization. Thus, the link lever 13 rotates the arm main bodies 16 of the pair of centering arms 11 and 12 in synchronization with each other, thereby displacing the pair of centering arms 11 and 12 between the initial position and the release position.

  The coil spring 14 is stretched over the bottom plate 10 and the link lever 13, and the one end portions 11a and 12a of the arm main body 16 of the pair of centering arms 11 and 12, that is, the direction I in which the protruding pins 17 approach each other (indicated by an arrow in FIG. 3). The link lever 13 is urged in a direction corresponding to one direction of the claims. For this reason, the centering arms 11 and 12 are positioned at the above-described initial position when the CDs 2a and 2b are not being conveyed.

  The restriction allowing portion 15 includes a protruding portion 18 projecting from both end portions 13a and 13b of the link lever 13 toward the arm body 16 of the centering arms 11 and 12, and a link lever of the arm body 16 of each of the pair of centering arms 11 and 12. The cam hole 19 as a cam groove part provided in the 13 connection places, and the dent 20 provided in the inner edge of each cam hole 19 are provided.

  The convex portion 18 is formed in a columnar shape, and is integrally formed with the arm main body 16 of each of the centering arms 11 and 12 in the illustrated example.

  The cam hole 19 penetrates the arm body 16 of each of the centering arms 11 and 12 and is formed in a square shape. The cam hole 19 is provided in both of the pair of centering arms 11 and 12. When the centering arms 11 and 12 are positioned at the above-described initial position, the cam hole 19 is parallel to the above-described transport direction K and is parallel to the above-described parallel portion 21 and inclined with respect to the transport direction K. And an inclined portion 22.

  In the cam hole 19 of one centering arm 11, the parallel portion 21 is disposed on the back side of the device body 3, that is, on the side farther from the insertion port 7 than the inclined portion 22. The cam hole 19 of one centering arm 11 is inclined so as to gradually approach the other centering arm 12 as the inclined portion 22 moves away from the parallel portion 21, that is, as it approaches the insertion port 7.

  In the cam hole 19 of the other centering arm 12, the parallel portion 21 is disposed closer to the insertion port 7 than the inclined portion 22. The cam hole 19 of the other centering arm 12 is inclined so as to gradually move away from one centering arm 11 as the inclined portion 22 moves away from the parallel portion 21, that is, toward the back side of the device body 3.

  In the cam hole 19 described above, the convex portion 18 is movable along the longitudinal direction of the cam hole 19. As the convex portion 18 moves in the cam hole 19, the regulation allowing portion 15 cooperates with the link lever 13 to rotate the pair of centering arms 11 and 12 in conjunction with each other.

  When the centering arms 11 and 12 are positioned at the initial position, the convex portion 18 is positioned at the end portion of the cam hole 19 on the side away from the inclined portion 22 of the parallel portion 21. In conjunction with the rotation of the centering arms 11 and 12 from the initial position, the convex portion 18 moves toward the inclined portion 22 of the cam hole 19, and the convex portion 18 inclines the cam hole 19 at the release position described above. It is positioned at the end of the portion 22 on the side away from the parallel portion 21.

  The recess 20 is provided on both the pair of centering arms 11 and 12. The recess 20 is arranged at the intersection where the parallel portion 21 and the inclined portion 22 of the cam hole 19 intersect and in the vicinity of the intersection, that is, at the substantially central portion of the cam hole 19. The dent 20 is provided at one inner edge located on the front side of the arrow I of the cam hole 19 and is provided in a concave shape from the inner edge, so that the width of the cam hole 19 is wider than the other part. The protrusion 18 can enter the recess 20. When the protrusion 18 enters the recess 20, the rotation of the arm body 16 of the centering arms 11, 12 is restricted (cannot rotate).

  The distance between the projecting pins 17 of the pair of centering arms 11 and 12 when the projection 18 enters the recess 20 of the cam hole 19 provided in one of the pair of centering arms 11 and 12 is the above-described small diameter. It is larger than the outer diameter of CD2b and smaller than the outer diameter of large diameter CD2a. For this reason, when the small diameter CD 2b is taken in and out of the device main body 3, the restriction allowing portion 15 has the convex portion 18 intruding into the concave portion 20 of the cam hole 19 provided in one of the pair of centering arms 11 and 12. Then, the protruding pins 17 of the pair of centering arms 11, 12 are separated from each other, that is, the arm main body 16 of the pair of centering arms 11, 12 is restricted from rotating.

  Note that the CD 2b having a smaller diameter than the projecting pin 17 of the pair of centering arms 11, 12 when the projection 18 enters the recess 20 of the cam hole 19 provided in one of the pair of centering arms 11, 12 is a device. When positioned outside the main body 3, it becomes difficult to transport the small-diameter CD2b across the outside of the apparatus main body 3 and the reproduction position. Note that the position of the protruding pin 17 of the pair of centering arms 11 and 12 when the protrusion 18 enters the recess 20 of the cam hole 19 provided in one of the pair of centering arms 11 and 12 is the small diameter CD2b. Is the boundary of the range that can be taken in and out of the device body 3.

  As described above, when the small-diameter CD2b is taken in and out of the device main body 3, the regulation allowing portion 15 contacts only the one projecting pin 17 of the pair of centering arms 11 and 12, and the small-diameter CD2b comes into contact with the one. Only the projecting pin 17 is pushed away from the other projecting pin 17 from the small diameter CD2b. And the restriction | limiting allowance part 15 becomes possible [the convex part 18 penetrate | invades in the dent 20 of the cam hole 19 provided in one of a pair of centering arms 11 and 12, and can take in and out small diameter CD2b in the apparatus main body 3]. Exceeding the range, the protrusion pins 17 of the pair of centering arms 11 and 12 are restricted from separating from each other.

  Further, in one centering arm 11, the recess 20 is disposed at the intersection of the parallel portion 21 and the inclined portion 22 of the cam hole 19. In the other centering arm 12, the recess 20 is disposed at the end of the inclined portion 22 of the cam hole 19 near the parallel portion 21, that is, in the vicinity of the intersection of the parallel portion 21 and the inclined portion 22 and in the inclined portion 22. For this reason, when the pair of centering arms 11 and 12 are rotated from the initial position toward the release position, after the protrusion 18 enters the recess 20 of the cam hole 19 provided in one centering arm 11, The protrusion 18 enters the recess 20 of the cam hole 19 provided in the other centering arm 12. Thus, the rotation angles from the initial position of the pair of centering arms 11 and 12 until the convex portion 18 enters the recess 20 are different from each other.

  In the disc centering mechanism 4 having the above-described configuration, the centering arms 11 and 12 are urged to the initial position described above, and the outer edges of the CDs 2a and 2b are brought into contact with the projecting pins 17, whereby the CDs 2a and 2b is guided to the center of the CD player 1 in the width direction X, and the CDs 2a and 2b inserted through the insertion port 7 and inserted into the device 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 centering arms 11 and 12 of the disc centering mechanism 4 allow the outer edges of the CDs 2a and 2b to be taken in and out of the device main body 3 through the insertion port 7 to come into contact with the protruding pins 17 so that the CDs 2a and 2b are taken in and out of the device main body 3. At this time, it rotates relative to the bottom plate 10 of the chassis 6 in conjunction with the movement of the CDs 2a and 2b. That is, the centering arms 11 and 12 move relative to the device main 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 main body 3.

  The CPU is connected to the transport unit, the clamp reproduction unit, the interlocking mechanism, and a sensor such as a switch or encoder that detects the rotation angle of one centering arm 11 of the disk centering mechanism 4 and performs these operations. To control the entire CD player 1. When one centering arm 11 is positioned at the position indicated by the solid line A in FIGS. 4 and 5, the CPU stores the CD 2a, 2b in the device main body 3 or the state where the CD 2a, 2b is removed. Is determined. When one of the centering arms 11 is positioned from the position indicated by the solid line A to the position indicated by the solid line B in FIGS. 4 and 5, the CPU determines that the CDs 2 a and 2 b have been inserted into the device main body 3.

  The CPU stops the motor of the transport unit when one centering arm 11 is positioned at the position indicated by the solid line C in FIGS. 4 and 5 when the small diameter CD 2b is ejected from the apparatus main body 3. The CPU stops the motor of the transport unit when one centering arm 11 is positioned at the position indicated by the solid line F in FIGS. The CPU determines that the large-diameter CD 2a has been inserted into the device body 3 when one of the centering arms 11 is positioned at the position indicated by the solid line F when the CDs 2a and 2b are inserted into the device body 3. If one centering arm 11 is not positioned at the position indicated by the solid line F, it is determined that the small-diameter CD 2 b has been inserted into the device main body 3.

  Note that the position indicated by the solid line D in FIGS. 4 and 5 indicates that the rotation of the one centering arm 11 is restricted when the small-diameter CD2b is inserted in contact with the protruding pin 17 of the one centering arm 11. Shows the position to be played. 4 and 5, the position indicated by the solid line E is a position where the rotation of one centering arm 11 is restricted when the small-diameter CD2b is inserted in contact with the protruding pin 17 of the other centering arm 12. Is shown.

  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 conveyance roller and the disk guide of the roller arm of the conveyance unit are close to each other, and the carriage chassis and the clamp arm of the clamp reproduction unit are separated from each other. 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 7. 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. Since the transport roller is rotating, the CDs 2a and 2b are transported between the carriage chassis and the clamp arm, that is, toward the reproduction position.

  As shown in FIG. 6, when the small diameter CD 2 b is inserted in contact with the protruding pin 17 of one centering arm 11, the protruding pin 17 of the one centering arm 11 is separated from the protruding pin 17 of the other centering arm 12. Further, the pair of centering arms 11 and 12 rotate. Then, as shown in FIG. 7A, the protrusion 18 enters the recess 20 of the cam hole 19 provided in one centering arm 11, and the rotation of the one centering arm 11 is restricted.

  At this time, as shown in FIG. 7B, the protrusion 18 does not enter the recess 20 of the cam hole 19 of the other centering arm 12. Since the distance between the projecting pins 17 is larger than the outer diameter of the small diameter CD2b, the projecting pins 17 of the other centering arm 12 do not come into contact with the small diameter CD2b and, of course, are not pushed from the small diameter CD2b. For this reason, the protrusion 18 enters the recess 20 of the cam hole 19 of one centering arm 11, and the centering arms 11, 12 are restricted from rotating in the direction in which the protruding pins 17 are separated from each other. Thus, the small diameter CD 2b is guided to the center in the width direction X of the CD player 1 by contacting the protruding pin 17 of one centering arm 11 whose rotation is restricted, that is, conveyed to the reproduction position. Is housed in.

  When the large diameter CD 2a is inserted into contact with the protruding pin 17 of one centering arm 11, the pair of protruding pins 17 of the one centering arm 11 is separated from the protruding pin 17 of the other centering arm 12. The centering arms 11 and 12 rotate. Then, as shown in FIG. 7A, the protrusion 18 enters the recess 20 of the cam hole 19 provided in one centering arm 11, and the rotation of the one centering arm 11 is temporarily restricted. .

  At this time, as shown in FIG. 7B, the protrusion 18 does not enter the recess 20 of the cam hole 19 of the other centering arm 12. Since the distance between the projecting pins 17 is smaller than the outer diameter of the large-diameter CD2a, the projecting pin 17 of the other centering arm 12 contacts the large-diameter CD2a and moves away from the projecting pin 17 of one centering arm 11. Of course, it is pushed from the large-diameter CD2a. As shown in FIG. 8B, since the convex portion 18 is located in the cam hole 19, the projecting pin 17 of the other centering arm 12 moves away from the projecting pin 17 of the one centering arm 11. The centering arm 12 rotates. Then, as shown in FIG. 8A, the other centering arm 12 pulls the link lever 13 in the direction in which the convex portion 18 comes out from the recess 20 of the cam hole 19 of one centering arm 11. Then, the regulation of one centering arm 11 is released.

  Further, when the large diameter CD 2a is inserted into the apparatus main body 3, as shown in FIG. 10 (b), the convex portion 18 enters the recess 20 of the cam hole 19 provided in the other centering arm 12. The rotation of the other centering arm 12 is once restricted.

  At this time, as shown in FIG. 10A, the protrusion 18 does not enter the recess 20 of the cam hole 19 of one centering arm 11. Since the distance between the projecting pins 17 is smaller than the outer diameter of the large diameter CD2a, the projecting pins 17 of the one centering arm 11 are in contact with the large diameter CD2a and away from the projecting pins 17 of the other centering arm 12. Of course, it is pushed from the large-diameter CD2a. As shown in FIG. 11A, since the convex portion 18 is located in the cam hole 19, the protruding pin 17 of one centering arm 11 is separated from the protruding pin 17 of the other centering arm 12, The centering arm 11 rotates. Then, as shown in FIG. 11 (b), the one centering arm 11 pushes the link lever 13 in the direction in which the convex portion 18 comes out from the recess 20 of the cam hole 19 of the other centering arm 12. Then, the restriction of the other centering arm 12 is released. Thus, the pair of centering arms 11 and 12 rotate to the release position, and the large diameter CD 2a is conveyed to the reproduction position, that is, accommodated in the apparatus main body 3.

  Further, as shown in FIG. 9, when the small diameter CD 2 b is inserted in contact with the protruding pin 17 of the other centering arm 12, the protruding pin 17 of the other centering arm 12 moves from the protruding pin 17 of the one centering arm 11. The pair of centering arms 11 and 12 rotate in a direction away from each other. Then, as shown in FIG. 7A, the protrusion 18 enters the recess 20 of the cam hole 19 provided in one centering arm 11, and the rotation of the one centering arm 11 is temporarily restricted. . Further, when the small-diameter CD2b is inserted, the restriction on the rotation of one centering arm 11 is released as in the case where the large-diameter CD2a is inserted.

  Then, as shown in FIG. 10 (b), the protrusion 18 enters the recess 20 of the cam hole 19 provided in the other centering arm 12, and the rotation of the other centering arm 12 is restricted. At this time, as shown in FIG. 10A, the protrusion 18 does not enter the recess 20 of the cam hole 19 of one centering arm 11. Since the distance between the projecting pins 17 is larger than the outer diameter of the small diameter CD2b, the projecting pins 17 of the one centering arm 11 do not come into contact with the small diameter CD2b and, of course, are not pushed from the small diameter CD2b. For this reason, the protrusion 18 enters the recess 20 of the cam hole 19 of the other centering arm 12, and the centering arms 11, 12 are restricted from rotating in the direction in which the protruding pins 17 are separated from each other. Thus, the small diameter CD 2b is guided to the center in the width direction X of the CD player 1 by abutting against the protruding pin 17 of the other centering arm 12 whose rotation is restricted, that is, transported to the reproduction position. Is housed.

  Further, when the large diameter CD 2a is inserted in contact with the protruding pin 17 of the other centering arm 12, the pair of protruding pins 17 of the other centering arm 12 is separated from the protruding pin 17 of the one centering arm 11. The centering arms 11 and 12 rotate. Then, as shown in FIG. 7A, the protrusion 18 enters the recess 20 of the cam hole 19 provided in one centering arm 11, and the rotation of the one centering arm 11 is temporarily restricted. . Further, when the large diameter CD 2a is inserted, the restriction on the rotation of the one centering arm 11 is released in the same manner as when the large diameter CD 2a is inserted in contact with the protruding pin 17 of the one centering arm 11 described above. Is done.

  Then, as shown in FIG. 10 (b), the protrusion 18 enters the recess 20 of the cam hole 19 provided in the other centering arm 12, and the rotation of the other centering arm 12 is restricted. At this time, as shown in FIG. 10A, the protrusion 18 does not enter the recess 20 of the cam hole 19 of one centering arm 11. Since the distance between the projecting pins 17 is smaller than the outer diameter of the large diameter CD2a, the projecting pins 17 of the one centering arm 11 are in contact with the large diameter CD2a and away from the projecting pins 17 of the other centering arm 12. Of course, it is pushed from the large-diameter CD2a. As shown in FIG. 11A, since the convex portion 18 is located in the cam hole 19, the protruding pin 17 of one centering arm 11 is separated from the protruding pin 17 of the other centering arm 12, The centering arm 11 rotates. Then, as shown in FIG. 11 (b), the one centering arm 11 pushes the link lever 13 in the direction in which the convex portion 18 comes out from the recess 20 of the cam hole 19 of the other centering arm 12. Then, the restriction of the other centering arm 12 is released. Thus, the pair of centering arms 11 and 12 rotate to the release position, and the large diameter CD 2a is conveyed to the reproduction position, that is, accommodated in the apparatus main body 3.

  In this way, when the small-diameter CD 2 b is taken in and out, the restriction allowing portion 15 restricts the protruding pins 17 of the pair of centering arms 11 and 12 from being separated from each other beyond the range in which the small-diameter CD 2 b can be taken in and out of the device body 3. When the large-diameter CD 2a is taken in and out, the protruding pins 17 of the pair of centering arms 11 and 12 are allowed to be separated from each other to the extent that the large-diameter CD 2a can be taken in and out of the device body 3.

  When the above-described CDs 2a and 2b are positioned at the reproduction position, the interlocking mechanism brings the carriage chassis and the clamp arm of the clamp reproduction unit closer to each other, and the disk guide of the conveyance unit and the conveyance roller of the roller arm are separated from each other. Then, the clamp reproduction unit clamps the CDs 2a and 2b between the clamper 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 ejects the CDs 2a and 2b from the apparatus main body 3, the interlocking mechanism has a disk guide of the transport unit and a transport roller of the roller arm. And the carriage chassis and clamp arm of the clamp playback unit are separated from each other. Then, the conveyance rollers are driven to rotate, and the CDs 2a and 2b are discharged. Since the CPU identifies the inserted CDs 2a and 2b when the CDs 2a and 2b are inserted, the CPU stops the conveying roller when one centering arm 11 is positioned on one of the solid lines C and F described above. . In this way, the CDs 2a and 2b are ejected from the apparatus main body 3.

  According to the present embodiment, the link lever 13 connects the location closer to the other end portion 11 b than the rotation center of one centering arm 11 and the location closer to the one end portion 12 a than the rotation center of the other centering arm 12. Thus, the single link lever 13 enables the pair of centering arms 11 and 12 to rotate in conjunction with each other. Therefore, the number of parts of the disk centering mechanism 4 can be reduced. Therefore, the number of man-hours required for assembly can be reduced.

  Further, the disc centering mechanism 4 further includes a regulation allowing portion 15, and the regulation allowing portion 15 includes a convex portion 18 and a centering arm 11, which are convex from the link lever 13 among the centering arms 11 and 12 and the link lever 13. 12 is provided with a cam hole 19 provided in the head 12. In this case, since the pair of centering arms 11 and 12 can be rotated by the projection 18 and the cam hole 19 in which the projection 18 moves inward, the centering arms 11 and 12 and the link lever 13 can be connected. An increase in the number of parts in the portion can be prevented.

  When the one of the pair of centering arms 11 and 12 is pushed, the restriction allowing portion 15 enters the convex portion 18 and the recess 20 that restricts the rotation of the centering arms 11 and 12 is inserted into the cam hole. 19 at the inner edge of the central portion. In this case, since the rotation of the centering arms 11 and 12 can be restricted only by providing the recess 20 at the inner edge of the cam hole 19, the small-diameter CD2b can be reliably guided without increasing the number of parts. Further, since the recess 20 for restricting the rotation of the centering arms 11 and 12 and the projecting pin 17 for guiding the CD exist in the same part, accumulation of dimensional errors of the parts is minimized. Thus, the protruding pin 17 can be accurately positioned.

  The rotation angles of the centering arms 11 and 12 until the protrusion 18 enters the recess 20 of the cam hole 19 are made different from each other. In this case, it is possible to prevent the rotation of both the centering arms 11 and 12 at the same time, so that the large diameter CD 2a can be taken in and out reliably.

  In the embodiment described above, the projection 18 is provided on the link lever 13, and the cam holes 19 as cam grooves are provided on the centering arms 11 and 12. However, in the present invention, the projecting portion 18 may be provided on the centering arms 11 and 12 and the cam groove portion may be provided on the link lever 13. In this case, it is desirable to provide the recess 20 on the rear edge in the direction in which the coil spring 14 as the biasing means of the cam groove portion biases the link lever 13. Further, the cam hole 19 as the cam groove portion described above passes through the centering arms 11 and 12. However, in the present invention, the cam groove portion does not have to penetrate the centering arms 11 and 12 or the link lever 13. That is, the cam groove may be a simple recess. In the embodiment described above, the planar shape of the cam hole 19 as the cam groove portion is formed in a square shape. However, in the present invention, the planar shape of the cam groove portion may be any shape.

  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, other recording media such as MD (Mini Disc) and DVD (Digital Versatile Disc) may be used as the recording media. 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 can be applied to, for example, a recording apparatus that records information on a recording medium, and an information recording / reproducing apparatus that reproduces and records information. Also 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 which reads out information recorded on the CDs 2a and 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.
A disc centering mechanism 4 for guiding the moving direction of the large diameter CD2a and the small diameter CD2b;
The disk centering mechanism 4 is
An arm main body 16 rotatably supported by the apparatus main body 3 such that one end portions 11a and 12a near the insertion port 7 through which the CDs 2a and 2b are provided provided in the apparatus main body 3 are detachable from each other; A pair of centering arms 15 having projecting pins 17 provided at one end portions 11a and 12a of the main body 16 and capable of contacting both the large diameter CD2a and the small diameter CD2b;
The CD 2a, 2b is supported by the device main body 3 so as to be slidable along a direction intersecting the conveyance direction K of the CD 2a, 2b, and is closer to the other end 11b than the center of rotation of the arm main body 16 of one centering arm 11. A link lever 13 that connects a location and a location closer to the one end 12a than the center of rotation of the arm body 16 of the other centering arm 12;
A coil spring 14 that biases the link lever 13 in one direction I in which the protruding pins 17 of the pair of centering arms 11 and 12 approach each other;
A CD player 1 comprising:

  In the CD player 1 described in the appendix, a link lever 13 is used to connect a position closer to the other end 11 b than the rotation center of one centering arm 11 and a position closer to the one end 12 a than the rotation center of the other centering arm 12. By connecting, a pair of centering arms 11 and 12 can be interlocked and rotated by one link lever 13. Therefore, the number of parts of the disk centering mechanism 4 can be reduced.

It is a perspective view which shows structures, such as a guide mechanism of the conventional CD player. 1 is a perspective view illustrating an appearance of a CD player as an information processing apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing a configuration of a disc centering mechanism and the like of the CD player shown in FIG. 1. FIG. 4 is an enlarged perspective view showing one centering arm and the like of the disk centering mechanism shown in FIG. 3. FIG. 5 is an enlarged perspective view showing a state in which one centering arm shown in FIG. 4 is rotated. FIG. 4 is a perspective view showing a state in which a CD is inserted into contact with a protruding pin of one centering arm of the disc centering mechanism shown in FIG. 3. (A) is a top view which expands and shows VIIa in FIG. 6, (b) is a top view which expands and shows VIIb in FIG. (A) is an enlarged plan view showing a state in which the regulation of one centering arm shown in FIG. 7 (a) is released, and (b) is the other centering shown in FIG. 7 (b). It is a top view which expands and shows the state which the arm canceled the control of one centering arm. FIG. 4 is a perspective view showing a state in which a CD is inserted into contact with a protruding pin of the other centering arm of the disc centering mechanism shown in FIG. 3. (A) is an enlarged plan view showing Xa in FIG. 9, and (b) is an enlarged plan view showing Xb in FIG. 9. (A) is a top view which expands and shows the state which one centering arm shown by Fig.10 (a) canceled the restriction | limiting of the other centering arm. FIG. 11B is an enlarged plan view showing a state in which the restriction of the other centering arm shown in FIG.

Explanation of symbols

1 CD player (information processing device)
2a Large diameter CD (large recording medium)
2b CD with small diameter (small recording medium)
3 Device body 4 Disk centering mechanism (guide means)
7 insertion port 11 one centering arm 11a one end 11b other end 12 other centering arm 12a one end 12b other end 13 link lever 13a one end 13b other end 14 coil spring (biasing means)
15 Restriction permitting part (Regulatory permitting means)
16 Arm body 17 Projection pin 18 Projection 19 Cam hole (cam groove)
20 Depression K Transport direction (in / out direction)
I One direction

Claims (4)

In an information processing apparatus that reads and writes information recorded on these recording media by putting a large recording medium and a small recording medium having different sizes into and out of the apparatus main body,
A guide means for guiding a moving direction of the large recording medium and the small recording medium;
The guiding means is
An arm main body rotatably supported by the apparatus main body so that one end near the insertion port through which the recording medium is provided provided in the apparatus main body can be contacted and separated from each other; and provided at one end of the arm main body A pair of centering arms having projecting pins capable of contacting both the large recording medium and the small recording medium;
A portion of the centering arm that is supported by the device main body so as to be slidable in a direction intersecting with the loading / unloading direction of the recording medium and that is closer to the other end than the center of rotation of the arm main body, and the other centering A link lever that connects a portion of the arm closer to the one end than the center of rotation of the arm body;
Biasing means for biasing the link lever in one direction in which the projecting pins of the pair of centering arms approach each other;
An information processing apparatus comprising: When the small recording medium is taken in and out, the protruding pins of the centering arm are restricted from being separated from each other beyond the range where the small recording medium can be taken in and out of the apparatus main body, and when the large recording medium is taken in and out In addition, it further comprises a regulation allowing means for allowing the projecting pins of the centering arm to be separated from each other to the extent that the large recording medium can be taken in and out of the device body,
The restriction allowing means includes a protrusion protruding from one of the end of the link lever and the pair of centering arms, and the protrusion is provided on the other, and the protrusion moves and the protrusion moves. The information processing apparatus according to claim 1, further comprising a cam groove portion that rotates the centering arm. The convex portion is provided at an end portion of the link lever, and the cam groove portion is provided in the centering arm.
The restriction allowing portion is provided at a substantially central portion in the longitudinal direction of the cam groove portion and in a concave shape from an inner edge on the front side in the urging direction of the link lever, and further includes a recess into which the convex portion can enter;
When only one projecting pin of the pair of centering arms is pushed away from the other projecting pin, the projecting portion enters the recess, and the small recording medium can be taken in and out of the device main body. The information processing apparatus according to claim 2, wherein the protruding pins of the centering arm are restricted from being separated from each other beyond a range. The cam groove and the recess are provided in both of the pair of centering arms,
The information processing apparatus according to claim 3, wherein rotation angles from an initial position of the pair of centering arms to a point where the protrusion enters the recess are different from each other.

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