JP2007207371A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device allowing smooth and accurate insertion/ejection of an optical disk even when the thickness of the optical disk changes, and reduction in the numbers of components and assembling steps without reducing the quality of inserting/ejecting. <P>SOLUTION: The optical disk A is provided with a main chassis 1, a traverse unit 2, an optical disk conveying mechanism 3, a roller base 4, an optical head 5, a driving force transmission mechanism 6, and an optical disk driving mechanism 7. The roller base 4 is provided with a fixed part 41 having a first screw hole 411 as a through-hole near a roller gear 313 fixed to the main chassis 1 and a second screw hole 412 as a through-hole on the extension line of a rotary shaft 311, and a flap part 42 on which a boss 421 and a tapered rib 422 are erected to engage a boss hole 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical disc apparatus that records and reads information by irradiating an optical disc with laser light, and more particularly to an optical disc apparatus that can smoothly insert optical discs having different thicknesses.

  As one type of optical disk apparatus, there is a so-called slot-in type optical disk apparatus in which an opening for inserting an optical disk is provided in front of the optical disk apparatus, and the optical disk alone can be inserted and ejected through the opening.

  The slot-in type optical disc apparatus has an opening in the front panel of the housing, a guide member fixed to the upper part of the opening inside the optical disc apparatus, and a roller disposed at a position facing the lower surface of the guide member A base and a feed roller rotatably supported by the roller base.

  The feed roller is arranged so that the rotation axis is perpendicular to the insertion / ejection direction of the optical disc, and can be rotated in both directions by using a motor as a power source. The optical disc comprises the guide member, the feed roller, The optical disk can be inserted or ejected by rotating the feed roller while being sandwiched between the optical disks. Tapered ribs are formed on the guide member so as not to come into contact with the recording surface of the optical disk when the optical disk is pulled in (see JP 2004-139640 A).

  In this optical disc apparatus, when the feed roller is bent or the rotation shaft is bent, the optical disc is not inserted into an accurate insertion position or not ejected when the optical disc is inserted / ejected. May occur. For such a problem, the problem is prevented from occurring by firmly fixing the roller base to the housing of the optical disk device.

Japanese Patent Application Laid-Open No. 2004-265494 discloses an apparatus that urges a roller base toward the guide member. The feed roller is rotatably supported by the roller base with high precision, and the feed roller is always brought into contact with the optical disc by urging the roller base toward the guide member. In addition, the optical disc can be accurately inserted / ejected.
JP 2004-139640 A JP 2004-265494 A

  If the roller base is firmly fixed to the housing, the size of the gap between the guide member into which the optical disk is drawn and the feed roller is limited. Although the thickness of the optical disc is determined according to the standard, it may be thick due to manufacturing errors, label arrangement, and the like. When the thickness of the optical disc becomes thicker than the standard thickness, the contact pressure between the guide member and the feed roller and the optical disc increases, and the optical disc is not inserted or the surface of the optical disc is damaged and recorded. / Troubles due to optical disc damage, such as inability to play.

  Further, since the contact pressure is increased, an unnecessary force is also applied to the guide member and the feed roller, so that the guide member is damaged, or a problem that the guide member is deformed or displaced occurs. The quality of insertion / ejection of the optical disk of the optical disk device may be deteriorated.

  In addition, when the roller base is firmly attached or is always urged toward the guide member, the number of members required for the attachment increases, so that it takes time and effort to assemble, and the manufacturing cost. Becomes higher.

  Accordingly, an object of the present invention is to provide an optical disc apparatus that can insert or eject the optical disc smoothly and accurately even when the thickness of the optical disc changes.

  Further, the present invention provides an optical disc apparatus that can reduce the number of constituent members and the number of assembling steps without deteriorating the quality of insertion or discharge, and can reduce the time and cost for manufacturing and assembling. Objective.

  In order to achieve the above object, the present invention is arranged in a main chassis having an opening through which an optical disc is inserted / extracted, and a portion adjacent to the opening inside the main chassis, and is inserted through the opening. A guide member that comes into contact with the label surface of the optical disc, a roller base that is disposed in a portion near the opening inside the main chassis, and that faces the guide member; and a gear at one end of the rotating shaft. And a feed roller that is supported by the roller base so as to be rotatable and orthogonal to the insertion / ejection direction of the optical disc, and a drive mechanism including a drive motor for driving the feed roller, An optical disc apparatus for recording or reproducing information by irradiating a laser beam while rotating the roller base, wherein the roller base A fixing portion fixed to the chassis with a bolt, the feed roller being rotatably supported, and a flap portion connected to the fixing portion, inserted and elastically separated from the guide member; The fixing portion has a first bolt hole formed on a side opposite to the flap portion with respect to the feed roller in the vicinity of the gear attached to the feed roller, and a gear of the feed roller. A second bolt hole formed on an extension line of the end portion on the non-attached side, wherein the flap portion protrudes from the opposite end portion of the fixing portion, and the guide The taper shape has a gradient extending from the center of the opening toward the end at a position away from the feed roller on the surface facing the member and extending in parallel with the rotation axis of the feed roller. The opening Ribs protruding symmetrically with respect to the center of the main chassis, and the portion of the main chassis where the opening is formed is attached to the engaging boss of the flap portion. A rectangular boss hole extending in the thickness direction of the optical disk to be inserted is formed, the roller base inserts the engaging boss of the flap portion into the boss hole, and the drive mechanism and the feed roller A gear attached to the main chassis, and a bolt is passed through the first bolt hole and the second bolt hole, and the bolt is screwed into a female screw hole provided in the main chassis. Features.

  According to this configuration, the flap portion can bend in the thickness direction of the inserted / ejected optical disc, so that the optical disc can be inserted even when an optical disc significantly thicker than the thickness determined by the standard is inserted. It is possible to insert / discharge smoothly and without damage.

  In addition, since the flap portion bends, it is possible to arrange a rib with a higher height, and when the optical disc moves, especially when it is ejected, it can be prevented from sagging due to its own weight. It is possible to prevent the optical disk from being damaged by friction with the opening and other members.

  Since the bolting is performed in the vicinity of the gear driving the feed roller, the gear can rotate stably. Further, since the screwing portion is disposed on the rotation axis of the feed roller, the feed roller is unlikely to be bent or displaced. Thus, by bolting two places, the drive of the feed roller can be made smooth and stable, and the movement of the optical disk can be made smooth and stable accordingly.

  Furthermore, since the number of screws required for attachment can be reduced as compared with the conventional roller base, the cost can be reduced by reducing the number of members and the number of man-hours in the manufacturing process.

  In order to achieve the above object, the present invention is arranged in a main chassis having an opening through which an optical disc is inserted / extracted, and a portion adjacent to the opening inside the main chassis, and is inserted from the opening. A guide member that comes into contact with the label surface of the optical disc, a roller base that is disposed in the vicinity of the opening inside the main chassis and opposed to the guide member, and one end of the rotation shaft Is equipped with a gear, and includes a feed roller that is orthogonal to the optical disc insertion / ejection direction and is rotatably supported by the roller base, and a drive mechanism for driving the feed roller, and rotates the optical disc. An optical disc apparatus for recording or reproducing information by irradiating a laser beam while making the roller base the main chassis A fixing portion fixed by a bolt and rotatably supporting the feed roller; and a flap portion connected to the fixing portion and inserted and elastically separated from the guide member. The fixing portion has a first bolt hole formed on a side opposite to the flap portion with respect to the feed roller and a gear of the feed roller in the vicinity of the gear attached to the feed roller. A second bolt hole formed on an extension line of the non-side end portion, and the flap portion includes at least one engagement boss protruding from the opposite end portion of the fixing portion, The portion of the main chassis where the opening is formed has a rectangular boss hole that engages with the engagement boss of the flap portion and extends in the thickness direction of the optical disk to be inserted. And the roller base inserts the engaging boss of the flap portion into the boss hole to connect the drive mechanism and the gear attached to the feed roller, and the first bolt hole and the A bolt is passed through the second bolt hole, and the bolt is attached by screwing with a female screw hole provided in the main chassis.

  According to this configuration, the flap portion can bend in the thickness direction of the inserted / ejected optical disc, so that the optical disc can be inserted even when an optical disc significantly thicker than the thickness determined by the standard is inserted. It is possible to insert / discharge smoothly and without damage.

  Since the bolting is performed in the vicinity of the gear driving the feed roller, the gear can rotate stably. Further, since the screwing portion is disposed on the rotation axis of the feed roller, the feed roller is unlikely to be bent or displaced. Thus, by bolting two places, the drive of the feed roller can be made smooth and stable, and the movement of the optical disk can be made smooth and stable accordingly.

  Furthermore, since the number of screws required for attachment can be reduced as compared with the conventional roller base, the cost can be reduced by reducing the number of members and the number of man-hours in the manufacturing process.

  In the above configuration, the flap portion has a taper shape that extends parallel to the rotation axis of the feed roller and has a gradient approaching the guide member from the center of the opening toward the end on the surface facing the guide member. And at least 1 rib which protrudes so that it may not cross the center of the said opening part may be provided.

  According to the present invention, it is possible to provide an optical disc apparatus that can insert or eject an optical disc smoothly and accurately even when the thickness of the optical disc changes.

  Further, according to the present invention, it is possible to provide an optical disc apparatus capable of reducing the number of constituent members and the number of assembling steps without deteriorating the quality of insertion or discharging, and thus reducing the time and cost required for manufacturing and assembling. Can do.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a slot-in type optical disc apparatus. The optical disk apparatus shown in FIG. 1 includes a housing Bd, a front panel Fp attached and fixed to the front surface of the housing Bd, and an optical disk recording / reproducing unit A attached to the inside of the housing Bd. The front panel Fp is provided with an opening Op, and the optical disc Ds is inserted into the opening Op.

  2 is a plan view of a slot-in type optical disc apparatus according to the present invention, FIG. 3 is a front view of the main part of the optical disc apparatus shown in FIG. 2, and FIG. 4 is a side of the main part of the optical disc apparatus shown in FIG. FIG. 5 is a sectional view, FIG. 5 is a plan view of the roller base, and FIG. 6 is a side view of the roller base. The optical disk recording / reproducing unit A shown in FIG. 2 has a main chassis 1, a traverse unit 2, an optical disk transport mechanism 3, a roller base 4, an optical head 5, a driving force transmission mechanism 6, an optical disk driving mechanism 7, and a roller base 8. Yes.

  In the following directions, the direction in which the front panel Fp is provided is the front side (F in the figure), the direction facing this is the rear side (R in the figure), and the line connecting the front side and the rear side. A direction parallel to the disc surface of the optical disc is expressed as a side (S in the drawing) (illustrated).

  The main chassis 1 includes an optical disk transport mechanism 3, a roller base 4, and a drive gear 63 included in the drive force transmission mechanism 6. On the front side of the main chassis 1 are formed an opening 10 through which the optical disk Ds is inserted / discharged, and a rectangular boss hole 11 for engaging with an engagement boss 421 of a roller base 4 described later. . The boss hole 11 has a rectangular shape extending in the thickness direction of the optical disk Ds to be inserted. The optical disk transport mechanism 3 includes a feed roller 31 that inserts / discharges the optical disk Ds by rotating in contact with the optical disk Ds, and an intermediate gear 32 that transmits a driving force from the drive gear 63 to the feed roller 31.

  The feed roller 31 is disposed around the rotary shaft 311 and the rotary shaft 311, and is a roller member 312 for feeding the optical disc by rotating in close contact with the optical disc, and a feed roller fixed to the end of the rotary shaft 311. And a gear 313. The roller member 312 is preferably made of a soft material that can obtain a sufficient frictional force with the recording surface of the optical disk Ds such as rubber and does not damage the recording surface.

  The intermediate gear 32 has a first intermediate gear 321 that engages with the drive gear 63, and a second intermediate gear 322 that is pivotally supported inside the side surface of the main chassis 1. The second intermediate gear 322 meshes with the feed roller gear 313 of the feed roller 31.

  The first intermediate gear 321 includes a first bevel gear 323 disposed on the same central axis. Similarly, the second intermediate gear 322 is also provided with a second bevel gear 324 disposed on the same central axis, and the first bevel gear 323 and the second bevel gear 324 are engaged with each other. That is, by using the first intermediate gear 321 and the second intermediate gear 322, the rotation of the drive gear 63 attached to the bottom surface of the main chassis 1 is rotated to the second side attached to the side surface of the main chassis 1. The rotation of the intermediate gear 322 can be converted.

  As shown in FIG. 5, the roller base 4 has a rectangular shape in plan view, and the feed roller 31 is rotatably supported, and is fixedly connected to the main chassis 1 and is integrally connected to the fixed portion 41. And a flap portion 42. Although the fixing | fixed part 41 and the flap part 42 are not limited to it, here, they are arrange | positioned on the same plane. The fixed portion 41 includes a roller attachment portion 410 to which the feed roller 31 is attached, a first screw hole 411 that is a through hole in the vicinity of the roller gear 313 attached to the feed roller 31, and a rotation shaft 311 of the feed roller 31. The second screw hole 412 which is a through hole is provided on the extended line on the side where the roller gear 313 is not attached. The roller mounting portion 410 supports the rotating shafts 311 at both ends of the roller member 312 and is mounted so that the roller member 312 does not interfere with the fixing portion 41.

  A boss 421 for engaging with the boss hole 11 of the main chassis 1 protrudes at an end portion of the flap portion 42 on the side opposite to that connected to the fixing portion 41. The roller base 4 is made of an elastic material such as resin. On the surface of the flap portion 42 on which the optical disc Ds slides, a taper-shaped rib 422 having a gradient approaching the optical disc Ds is provided by standing away from the center line of the flap portion 42.

  The roller base 4 is disposed in the main chassis 1 by engaging a boss 421 protruding from the end of the flap portion 42 with the boss hole 11 of the main chassis 1. Bolts Bt are passed through the first screw holes 411 and the second screw holes 412 of the fixing portion 41 of the roller base 4 arranged in the main chassis 1 and screwed into female screw holes (not shown) formed in the main chassis 1. By combining, the fixing portion 41, that is, the roller base 4 is attached to the main chassis 1.

  As shown in FIG. 4, a guide member 12 is attached in the vicinity of the opening 10 inside the main chassis 1 at a position facing the label surface of the optical disk Ds to be inserted / discharged. The guide member 12 is inclined so as to guide the rear end of the optical disc Ds to the feed roller 31 when the optical disc Ds is inserted from the opening 10. Further, the optical disk Ds can be inserted / discharged by rotating the feed roller 32 in a state where the optical disk Ds is sandwiched between the guide member 12 and the feed roller 31.

  As shown in FIG. 2, the traverse unit 2 includes a traverse chassis 21, an optical head 5, and a part of the driving force transmission mechanism 6. The traverse chassis 21 is formed with a rotating boss 210 in a portion close to the rear side on both side surfaces. The rotating bosses 210 provided on both side surfaces of the side are formed on the same central axis. The rotating boss 210 is engaged with the main chassis 1, and the traverse chassis 21 rotates about the rotating boss 210 with respect to the main chassis 1. That is, the front side of the traverse chassis 21 approaches and separates from the optical disc Ds moved to the recording / reproducing position.

  The optical head 5 records or reads information by irradiating the optical disk with laser light. The optical head 5 includes a laser light source that emits laser light, an objective lens that condenses the laser light to form a laser spot on the recording surface of the optical disk, and a light receiving element that receives the laser light reflected by the recording surface of the optical disk (none A slide base 51 on which optical components such as those shown in FIG. The traverse chassis 21 is provided with a shaft 213, and the slide base 51 is attached to the shaft 213 so as to reciprocate. The slide base 51 is provided with a rack 52 that meshes with the driving force transmission mechanism 6 (a pinion gear 613 described later) and slides the optical head 5 by the driving force of the driving motor 60.

  The driving force transmission mechanism 6 includes a driving motor 60, a first gear 61, a second gear 62, and a driving gear 63. Of these, the drive gear 63 is attached to the main chassis 1, and the remaining drive motor 60 and gear group are attached to the traverse chassis 21.

  The drive shaft of the drive motor 60 is provided with a worm gear and meshes with the first gear 61. In the first gear 61, a first large gear 611, a first small gear 612, and a pinion gear 613 are axially aligned on the same rotation shaft and supported rotatably. The first large gear 611 meshes with the worm gear of the drive motor 60, and the driving force generated on the drive shaft of the drive motor 60 is transmitted to the first large gear 611. The pinion gear 613 meshes with the rack 52 of the optical head 5 and drives the optical head 5. The first small gear 612 meshes with the second gear 62. The second gear 62 meshes with the drive gear 63.

  The optical disk drive mechanism 7 has a spindle motor (not shown) for rotating the optical disk, and a turntable 71 attached to the output shaft of the spindle motor and supporting the optical disk. The turntable 71 sandwiches an optical disk between clamps (not shown) and stably rotates the optical disk.

  The traverse chassis 21 rotates in conjunction with the insertion or ejection of the optical disc Ds. That is, when the optical disk Ds is in a recording / reproducing position using a member for detecting the position of the optical disk Ds (not shown), a sliding member, and the like, the optical disk Ds is rotated in the direction to sandwich the optical disk Ds. The optical disk Ds is clamped using the drive mechanism 7. Further, when the optical disk Ds is not at the recording / reproducing position, the optical disk drive mechanism 7 or the like disposed in the traverse chassis 21 is retracted so as not to obstruct the movement of the optical disk Ds.

  Next, the roller base 4 when the optical disk Ds is inserted will be described. 7 is a front view of a state in which an optical disc is inserted into the optical disc apparatus shown in FIG. 3, and FIG. 8 is a side sectional view of a state in which the optical disc is inserted into the optical disc apparatus shown in FIG.

  As shown in FIG. 8, the optical disc Ds is inserted from the opening 10 of the main chassis 1. When a certain amount of the optical disk Ds is inserted through the opening 10, the optical disk Ds is urged toward the feed roller 31 by the guide member 12 that is mounted facing the roller base 4.

  As a result, the recording surface of the optical disc Ds comes into contact with the roller member 312. At this time, the optical disk Ds is biased toward the roller member 312 by the guide member 12 from the label surface side, and a certain frictional force is generated with the roller member 312 on the recording surface side of the optical disk Ds. In this state, the optical disk Ds is drawn into the optical disk apparatus A by rotating the feed roller 31.

  At this time, the optical disk Ds slides on the rib 422 formed on the flap portion 42. As described above, the flap portion 421 has a tapered shape, and the outer peripheral portion of the optical disc Ds comes into contact with the rib 422 in accordance with the amount of insertion of the optical disc Ds.

  When the optical disc Ds is in contact with the tapered rib 422, the contact with the rib 422 of the optical disc Ds is only at the outer peripheral side end of the recording surface as shown in FIG. Thereby, it can insert so that the recording surface of the optical disk Ds may not be damaged.

  When the optical disk Ds is completely drawn, the traverse chassis 21 rotates, and the optical disk Ds is lifted away from the feed roller 31 by the turntable 71 and is sandwiched.

  The ejection of the optical disk Ds is performed in the reverse procedure of the insertion, that is, when the recording or reproduction of the optical disk Ds is completed, the traverse chassis 21 moves to the retracted position. At this time, a part of the optical disk Ds comes into contact with the roller member 312 of the feed roller 31. At this time, the feed roller 31 rotates toward the front side. The optical disk Ds that has come into contact with the roller member 312 leaves the turntable 71 and starts to slide to the front side.

  The optical disk Ds passes through the gap between the guide member 12 and the rib 422 of the flap portion 42 and is discharged from the opening 10 of the main chassis 1. At this time, since the rib 422 is formed in the flap portion 42, when the optical disc Ds is ejected, it can be prevented from dripping from the opening 10 due to the weight of the ejected portion of the optical disc Ds. . Thereby, it is possible to prevent the recording surface of the optical disc Ds from being damaged by other members (particularly the opening 10) constituting the optical disc apparatus A. In addition, it is possible to reduce the scattering of the scraps of the optical disc Ds generated when the label surface comes into contact with other portions and is scraped into the optical disc apparatus A.

  Further, when an optical disc Ds2 having a thickness larger than the thickness determined by the standard by attaching a label or an error occurring during manufacture is inserted / discharged is as follows. Usually, the gap formed between the guide member 12 and the roller base 4 is designed in consideration of the passage of an optical disc having a thickness determined by a standard. In other words, a gap is formed through which an optical disk having a large thickness can pass within a slight error range.

  When the optical disc Ds2 exceeding the error range is inserted, when the optical disc Ds2 comes into contact with the rib 422 of the flap portion 42, the gap between the rib 422 and the guide member 12 has a sufficient gap with respect to the inserted optical disc Ds2. Therefore, the gap between the rib 422 and the guide member 12 is widened by the elastic deformation (deflection) of the flap portion 42. In this state, the rear end of the optical disk Ds2 comes into contact with the roller member 312 of the feed roller 31. Thereafter, since the optical disk Ds is pressed against the roller member 312 by the guide member 12, the recording surface and the roller member 312 generate a sufficient frictional force. The optical disk Ds2 is drawn into the optical disk apparatus A by the rotation of the roller member 312.

  That is, when the thin optical disc Ds moves, the flap portion 42 does not bend, but when the thick optical disc Ds2 moves, the flap portion 42 bends, so that the ribs 422 having a high height are arranged on the flap portion 42. be able to. As a result, when the thin optical disk Ds moves (particularly when ejected when it is not supported by the user), the recording surface is damaged or scraped by dripping due to its own weight and rubbing with the opening 10 or other members. Can be suppressed.

  As described above, by using the optical disc apparatus A, the flap portion 42 is configured to be elastically deformable, so that the optical disc Ds thicker than the thickness determined by the standard can be inserted / discharged without any problem. .

  Further, when the roller base 4 is attached to the main chassis 1, the first screw hole 411 disposed in the vicinity of the roller gear 313 of the fixing portion 41 is fixed to the main chassis 1 with the bolt Bt. The intermediate gear 32 can be meshed stably. Thereby, the roller member 312 can be rotated stably and smoothly.

  Moreover, since the 2nd screw hole 412 arrange | positioned on the extension line | wire of the rotating shaft 311 is fixed to the main chassis 1 with the volt | bolt Bt, it can suppress that the shake and deflection | deviation of the rotating shaft 311 generate | occur | produce. As a result, the roller member 312 can be brought into contact with the recording surface of the optical disc Ds uniformly or substantially uniformly, and the accuracy in the feeding direction of the optical disc Ds can be increased, so that insertion / ejection of the optical disc Ds can be stably and smoothly performed. Can be done.

  In this embodiment, the optical disk recording / reproducing unit used in the optical disk apparatus is described as an example in which the optical disk is inserted horizontally. However, the present invention is not limited to this. It can be used in the same manner for an optical disc apparatus that is vertically inserted.

  The present invention can be applied to an optical disc apparatus using an optical disc such as a DVD or CD as a recording medium.

It is a perspective view of a slot-in type optical disc device. FIG. 2 is a plan layout view of the main part of the slot-in type optical disc apparatus according to the present invention. FIG. 3 is a front view of the optical disc apparatus shown in FIG. 2. FIG. 3 is a side cross-sectional view of a main part of the optical disc apparatus shown in FIG. It is a top view of a roller base. It is a side view of the roller base shown in FIG. FIG. 4 is a front view of a state where an optical disc is inserted into the optical disc apparatus shown in FIG. 3. FIG. 5 is a side sectional view showing a state in which an optical disc is inserted into the optical disc apparatus shown in FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main chassis 2 Traverse unit 21 Traverse chassis 3 Optical disk conveyance mechanism 31 Feed roller 32 Intermediate gear 4 Roller base 41 Fixing part 410 Roller attachment part 411 1st screw hole 412 2nd screw hole 42 Flap part 421 Boss 422 Rib 5 Optical head 51 Slide base 6 Drive force transmission mechanism 7 Optical disk drive mechanism

Claims (3)

A main chassis having an opening through which an optical disc is inserted / ejected;
A guide member disposed in a portion adjacent to the opening inside the main chassis and abutting against a label surface of the optical disc inserted from the opening;
A roller base disposed to face the guide member in a portion close to the opening inside the main chassis;
A gear is attached to one end of the rotating shaft, and a feed roller that is orthogonal to the insertion / ejection direction of the optical disc and is rotatably supported by the roller base;
An optical disk device comprising a drive mechanism including a drive motor for driving the feed roller, and recording or reproducing information by irradiating a laser beam while rotating the optical disk,
The roller base is fixed to the main chassis with a bolt, and is connected to the fixing portion, the feeding roller being rotatably supported, and to the fixing portion, and has a predetermined angle with respect to the insertion / ejection direction of the optical disc. And has a flap part that flexes elastically to form,
The fixing portion is in the vicinity of the gear attached to the feed roller, on the side where the gear of the feed roller is not attached, and a first bolt hole formed on the opposite side of the flap portion with respect to the feed roller. A second bolt hole formed on the extension line of the end,
The flap portion is parallel to the rotation axis of the feed roller at a position away from the feed roller on the surface facing the guide member and two engaging bosses protruding from the opposite end of the fixed portion. Extending from the center of the opening toward the end, and having a tapered tapered shape approaching the guide member, and two ribs projecting symmetrically with respect to the center of the opening,
On the surface of the main chassis where the opening is formed, a rectangular boss hole that engages with the engagement boss of the flap portion and extends in the thickness direction of the inserted optical disc is formed,
The roller base inserts the engaging boss of the flap portion into the boss hole, connects the drive mechanism and a gear attached to the feed roller, and connects the first bolt hole and the second bolt hole. An optical disc apparatus, wherein a bolt is inserted and the bolt is screwed into a female screw hole provided in the main chassis. A main chassis having an opening through which an optical disc is inserted / ejected;
A guide member disposed in a portion adjacent to the opening inside the main chassis and abutting against a label surface of the optical disc inserted from the opening;
A roller base disposed to face the guide member in a portion close to the opening inside the main chassis;
A gear is attached to one end of the rotating shaft, and a feed roller that is orthogonal to the insertion / ejection direction of the optical disc and is rotatably supported by the roller base;
An optical disc apparatus that records or reproduces information by irradiating a laser beam while rotating the optical disc, and a drive mechanism for driving the feed roller,
The roller base is fixed to the main chassis with a bolt, and is connected to the fixing portion where the feed roller is rotatably supported. The roller base is connected to the fixing portion and has a predetermined angle with respect to the insertion / ejection direction of the optical disc. And has a flap part that flexes elastically to form,
The fixing portion is in the vicinity of the gear attached to the feed roller, on the side where the gear of the feed roller is not attached, and a first bolt hole formed on the opposite side of the flap portion with respect to the feed roller. A second bolt hole formed on the extension line of the end,
The flap portion includes at least one engagement boss protruding from an end portion on the opposite side of the fixed portion,
On the surface of the main chassis where the opening is formed, a rectangular boss hole is formed that engages with the engagement boss of the flap portion and extends in the thickness direction of the optical disc to be inserted,
The roller base inserts the engaging boss of the flap portion into the boss hole, connects the drive mechanism and a gear attached to the feed roller, and connects the first bolt hole and the second bolt hole. An optical disc apparatus, wherein a bolt is inserted and the bolt is screwed into a female screw hole provided in the main chassis.   The flap portion has a tapered shape on a surface facing the guide member, extending in parallel to the rotation axis of the feed roller and having a gradient approaching the guide member from the center of the opening toward the end. 3. The optical disk apparatus according to claim 2, further comprising at least one rib protruding so as not to cross the center of the optical disk.

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