WO2008032399A1

WO2008032399A1 - Recording medium driving device and disc device

Info

Publication number: WO2008032399A1
Application number: PCT/JP2006/318367
Authority: WO
Inventors: Yuji Yamada
Original assignee: Pioneer Corporation
Priority date: 2006-09-15
Filing date: 2006-09-15
Publication date: 2008-03-20
Also published as: JPWO2008032399A1; JP4850251B2

Abstract

In a disc device (100), a reinforcing section (310) is arranged at a downstream opening end (302A) positioned in the downstream in the rotating direction of an optical disc, on a processing opening section (301) which corresponds to a shift path of an information processing section (240) of a TM cover member (300) of a traverse mechanism (200). The reinforcing section (310) is formed as a step having a step section (311) on a side separated from the optical disc. Strength against a warping force of the TM cover member (300) is improved by a negative pressure status generated by high-speed rotation of the optical disc. An air flow toward the optical disc is generated by the step section (311), and warping is eliminated. A contact with the optical disc due to warping is eliminated.

Description

Specification

Recording medium driving device and disk device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a recording medium driving device that rotatably holds a disk-shaped recording medium, and a disk device including the recording medium driving device.

Background art

Conventionally, a thin disk drive that can be mounted on a notebook personal computer or the like, a so-called slim disk drive is known (for example, Patent Document 1).

[0003] The device described in Patent Document 1 is a thin disk device that drives a disk-shaped CD-ROM. The thin disk device includes a main chassis and a tray that is formed to be able to be pulled out from the main chassis. I have. The tray is provided with a substantially circular recess for receiving the disc, and a feed assembly is provided in a notch recess formed in the radial direction including the vicinity of the center of the recess. This feed assembly includes a table on which a disk is mounted, a disk-facing surface (see FIG. 4 of Patent Document 1) provided with a notch provided on the outer side of the table, and a notch. And a pick-up device that can be moved along.

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2002-269949 (see pages 3 to 4 and FIG. 4) Disclosure of Invention

Problems to be solved by the invention

[0005] By the way, in the conventional configuration as described in Patent Document 1, when the disc is mounted on the table, the distance between the disc facing surface and the disc surface becomes small, so the disc is rotated by rotating the table. If so, negative pressure may be generated between the disk facing surface and the disk surface. For this reason, there is a problem that the disc facing surface and the disc may squeeze in a direction close to each other due to negative pressure, and the disc facing surface and the disc may come into contact with each other.

In view of the above problems, an object of the present invention is to provide a recording medium driving apparatus and a disk apparatus that favorably rotate a disk-shaped recording medium.

Means for solving the problem [0007] The recording medium driving device according to the present invention is provided in the vicinity of the storage position of the recording medium in a case body capable of storing a disk-shaped recording medium, and holds the recording medium rotatably. And a cover member having a disk facing surface substantially parallel to the disk surface of the recording medium in a state where the recording medium is held by the recording medium holding portion, and a processing opening being formed, and the cover member And performing at least one of a reading process for reading information recorded on the recording medium and a writing process for writing information on the recording medium through the processing opening, and the recording medium holding unit. An information processing unit provided so as to be able to move substantially along the radial direction of the recording medium held, and an opening edge of the processing opening of the cover member and the vicinity of the processing opening. Chino at least a reinforcing portion provided on either one, characterized by comprising a.

[0008] The disk device according to the present invention is provided with a case body capable of storing a disk-shaped recording medium, and the housing of the housing in the vicinity of the storage position of the recording medium. And a recording medium driving device according to any one of the above.

Brief Description of Drawings

FIG. 1 is a plan view schematically showing the inside of a disk device according to an embodiment of the present invention.

FIG. 2 is a plan view showing the inside of the disk device in a state where the tray of the disk device in the embodiment is pulled out.

FIG. 3 is a plan view with the TM cover member of the traverse mechanism constituting the disk device in the embodiment removed.

FIG. 4 is a plan view of a traverse mechanism provided with a TM cover member in the embodiment.

FIG. 5 is a cross-sectional view showing the vicinity of the downstream opening edge of the TM cover member in the embodiment.

FIG. 6 is a cross-sectional view showing the vicinity of a downstream opening edge of a TM cover member in another embodiment.

FIG. 7 is a cross-sectional view showing the vicinity of a downstream opening edge of a TM cover member in still another embodiment.

FIG. 8 is a cross section showing the vicinity of the downstream opening edge of the TM cover member in still another embodiment. FIG.

FIG. 9 is a cross-sectional view showing the vicinity of a downstream opening edge of a TM cover member in still another embodiment.

FIG. 10 is a cross-sectional view showing the vicinity of the downstream opening edge of the TM cover member in still another embodiment.

FIG. 11 is a plan view of a traverse mechanism provided with a TM cover member in still another embodiment.

FIG. 12 is a cross-sectional view showing the vicinity of a downstream opening edge of a TM cover member in still another embodiment.

Explanation of symbols

10 ···· Optical disc as recording medium

100 ... disk unit

110 ·. · Case body

200 · '· Traverse mechanism as a recording medium drive

221 '' Turntable as a recording medium holder

240 ... Information processing department

300 • 'TM (traverse mechanism) cover member as cover member

301 ··· Processing opening

302 ... opening edge

302A: Downstream opening edge

303 ... Disk facing surface

310 ... Reinforcement part

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view schematically showing the inside of a disk device according to an embodiment of the present invention. FIG. 2 is a plan view showing the inside of the disk device with the tray of the disk device pulled out. FIG. 3 is a plan view with the TM cover member of the traverse mechanism constituting the disk device removed. Fig. 4 shows the plane of the traverse mechanism with the TM cover member FIG. FIG. 5 is a cross-sectional view of a part of the TM cover member.

[Configuration of Disk Device]

In FIG. 1 and FIG. 2, reference numeral 100 denotes a disk device that works according to an embodiment of the present invention. The disk device 100 is a so-called slim disk device (or slim disk drive) that is mounted on a portable electric device such as a notebook personal computer or an electric device mounted on a vehicle. It is.

The disk device 100 is not shown in at least one side of a disk-shaped recording medium! At least one of a reading process for reading information recorded on the recording surface and a recording process for recording various information on the recording surface Process. Here, examples of the disc-shaped recording medium include CD (Compact Disc), DVD (Digital Versatile Disc), BD (Blu-ray Disc: Blu-ray Disc), and HD-DVD (High Definition DVD). Various configurations such as an optical disk 10 (see Fig. 4), a magneto-optical disk, and a magnetic disk can be illustrated.

The disk device 100 has a substantially rectangular box-shaped case body 110 made of, for example, metal and having an internal space and provided with an unillustrated eaves outlet on one side surface. Further, in the case body 110, there are a tray section 120, transport means 130 for moving the tray section 120 forward and backward through the opening of the case body 110, and a control circuit section (not shown) that controls the operation of the entire disk device 100. Are arranged.

The tray unit 120 includes a tray 121 and a decorative plate 122.

The tray 121 is formed in a substantially plate shape using, for example, a synthetic resin. The tray 121 is provided with a mounting opening 121 A formed in an approximately central portion.

The decorative plate 122 is provided on one edge of the tray 121, and is formed into an elongated plate shape with a synthetic resin or the like that closes the opening of the case body 110 while being retracted into the case body 110 by the conveying means 130. Yes.

In the tray section 120, a traverse mechanism 200 as a recording medium driving section is disposed so that a part thereof faces the mounting opening 121A of the tray 121.

The conveyance means 130 includes a guide rail 131 disposed in the case body 110, an urging means (not shown), an urging release means (not shown), and the like. The guide rail 131 is disposed along the advancing / retreating direction through the opening of the tray part 120, and guides and guides the advancing / retreating movement of the tray part 120.

The urging means is, for example, a spring member, and is elastically deformed with the tray portion 120 retracted into the case body 110, and the restoring force due to the elastic deformation acts on the state in which the tray portion 120 advances through the opening. .

The bias release means engages with an engagement / disengagement means (not shown) provided in the tray section 120 in a state where the tray section 120 is retracted into the case body 110 and the decorative plate 122 closes the opening. Then, the urging release means releases the engagement state of the engagement / disengagement means in response to a request for advancement of the tray section 120, such as operation of an eject button disposed on the decorative panel 122, for example.

[0015] As shown in FIGS. 3 and 4, the traverse mechanism 200 disposed in the tray section 120 includes a pedestal section 210 formed in a frame shape. The pedestal portion 210 is provided with disk rotation driving means 220 located near the periphery.

The disk rotation driving means 220 includes a rotating electric motor (not shown) which is a spindle motor, and a turntable 221 as a substantially disk-shaped recording medium holding portion integrally provided on the output shaft of the rotating electric motor. It is equipped with.

The turntable 221 includes a disk engagement / disengagement unit 222 that is formed at a substantially central position of the optical disk 10 and that can disengage / attach the mounting hole. The turntable 221 holds the optical disc 10 in a rotatable manner by engaging the mounting hole of the optical disc 10 with the disc engaging / disengaging portion 222. The disk rotation driving means 220 is electrically connected to the control circuit unit and driven based on a predetermined signal input to the control circuit unit. That is, when a predetermined signal is input from the control circuit unit, the electric motor for rotation is driven, whereby the turntable 221 is rotated, for example, clockwise as shown in FIG. The optical disk 10 mounted on is also rotated in the clockwise direction.

Further, as shown in FIG. 3, a processing moving means 230 is disposed on the pedestal part 210.

The processing moving means 230 includes a pair of guide shafts 231 disposed on the pedestal part 210 so that the axial directions thereof are substantially parallel to each other, and a moving electric motor 232 that is a stepping motor, for example.

The output shaft (not shown) of the electric motor for movement 232 has a helical engagement groove 232B on the outer peripheral surface. The lead screw 232A provided with is integrally connected on the same axis.

Furthermore, an information processing unit 240 supported by the processing moving unit 230 is disposed on the pedestal unit 210.

The information processing unit 240 includes a movement holding unit 241 that is held in a state of being bridged between the pair of guide shafts 231. The movement holding portion 241 includes a holding portion 241A into which the guide shaft 231 is movably inserted, and a movement restricting claw that engages with the engagement groove 232B of the lead screw 232A connected to the output shaft of the electric motor 232 for movement. Part 241B. The information processing unit 240 is electrically connected to the control circuit unit by a flexible circuit (not shown), for example.

The information processing unit 240 also includes a light source (not shown), a lens 251 for converging light from the light source, and a light sensor (not shown) that detects outgoing light reflected by the optical disc 10. It has a pickup 250. The optical pickup 250 is electrically connected to a flexible circuit connected to the information processing unit 240, and is connected to the control circuit unit via the flexible circuit. The optical pickup 250 reads various information recorded on the recording surface 11 (see FIG. 5) of the optical disc 10 and outputs it to the output circuit unit under the control of the control circuit unit, and various processes from the control circuit unit. A recording process for recording information on the recording surface 11 is performed.

[0018] Then, on the upper surface side of the pedestal 210, a TM cover member 300 as a cover member is provided as shown in FIG.

This TM cover member 300 is formed of a light metal such as aluminum, for example, and covers the electric circuit for rotating the disk rotation driving means 220 of the traverse mechanism 200, the processing moving means 230, a part of the information processing section 240, and the flexible circuit. The pedestal 210 is fixed to the base. The TM cover member 300 prevents the flexible circuit from protruding to the optical disc 10 side, the contact of the optical disc 10 with the information processing unit 240, and the like.

Then, the TM cover member 300 is a disc-opposing surface that faces the recording surface 11 of the optical disc 10 and is substantially parallel to the recording surface 11 with the optical disc 10 engaged with the turntable 221 at a predetermined interval. 303.

Also, the TM cover member 300 has a movement path of the optical pickup 250 of the information processing unit 240. That is, a processing opening 301 is provided along the radial direction of the turntable 221. Through this processing opening 301, the lens 251 of the optical pickup 250 faces the recording surface 11 of the optical disc 10, and light of a predetermined wavelength can be emitted to the recording surface 11.

Further, the processing opening 301 of the TM cover member 300 has a pair of long opening edges 302 facing each other substantially parallel to the moving direction of the optical pickup 250. Among these opening edges 302, the downstream opening edge 302A (the opening edge 302 on the left side in FIG. 4 in FIG. 4) located downstream of the processing opening 301 in the rotation direction of the optical disk 10 is the optical disk. A reinforcing portion 310 is provided at a position facing the outer peripheral portion of the optical disc 10 with the 10 being engaged with the turntable 221.

As shown in FIG. 5, the reinforcing portion 310 has an upper surface force Distance distance force to the recording surface 11 of the optical disc 10 TM Disc member surface 300 opposite to the optical disc 10 in the other portion of the cover member 300 It is formed in a stepped shape by, for example, embossing so as to be larger than the dimension. That is, a step portion 311 having a predetermined height is formed between the reinforcing portion 310 and the disk facing surface 303. By this reinforcing portion 310, the downstream opening edge 302A of the processing opening 301 is bent in the thickness direction, and the strength against an external force in the thickness direction is improved. Further, when the turntable 221 is rotationally driven by the reinforcing portion 310 and the step portion 311, the air flow generated by the high-speed rotation of the optical disc 10 strikes the step portion 311 and flows toward the recording surface 11 side of the optical disc 10. Thus, a turbulent flow is generated between the recording surface 11 of the optical disc 10 and the TM cover member 300.

[Operation of Disk Device]

Next, the operation of the disk device will be described.

Note that the state of the rotational drive operation of the optical disc 10 will be described as an operation.

[0021] The optical disk 10 is engaged with the turntable 221 of the traverse mechanism 200 disposed in the tray unit 120, and the tray unit 120 is stored in the case body 110, for example, by a user operation. When a signal indicating that predetermined processing is to be performed is input to the optical disc 10, the control circuit unit of the disk device 100 inputs a predetermined signal to the disk rotation driving means 220. As a result, the electric motor for rotation of the disk rotation driving means 220 is driven, and the turntable 221 is rotated at a high speed, for example, at 5000 rpm or more. The optical disk 10 mounted on the disk is also rotated at high speed.

Thereafter, the control circuit unit controls the movement of the information processing unit 240, and light of a predetermined wavelength is emitted from the lens 251 of the optical pickup 250 to the recording surface 11 of the optical disc 10, and is recorded by the optical sensor. A predetermined process is performed on the optical disc 10 by receiving the light reflected by the optical disc 10.

Here, due to the rotation of the optical disc 10, an air flow is generated between the optical disc 10 and the TM cover member 300 of the traverse mechanism 200 along the rotation direction of the optical disc 10. Therefore, a negative pressure state is more likely to occur between the TM cover member 300 and the optical disc 10 than other portions. In particular, since the optical disk 10 is rotated at a high speed, the outer peripheral side of the optical disk 10 has a higher tangential moving speed than the inner peripheral side, and the air flow velocity is increased, resulting in a negative pressure state. In particular, a force is applied to cause the peripheral edge portion of the downstream opening edge 302A of the TM cover member 300 on the downstream side in the rotation direction of the optical disc 10 to come close to the optical disc 10.

By the way, the downstream opening edge 302A of the TM cover member 300 on the downstream side is strengthened by the reinforcing portion 310, so that the strength against the force squeezed by the negative pressure is improved and the contact with the optical disc 10 is prevented from being squeezed. .

Furthermore, a turbulent flow that is an air flow toward the recording surface 11 side of the optical disk 10 is generated when the air flow force step 311 generated by the high-speed rotation of the optical disk 10 occurs. This further prevents the TM cover member 300 from coming into contact with the optical disc 10 due to the stagnation.

[Operational effect of the disk device]

As described above, in the above embodiment, the reinforcing portion 310 is provided on the TM cover member 300 of the traverse mechanism 200 in the disk device 100.

For this reason, for example, when the information processing of the optical disc 10 is performed, a negative pressure state that may occur when the optical disc 10 is rotated at a high speed causes the TM cover member 300, particularly the vicinity of the downstream opening edge 302A, to face the optical disc 10. It is possible to prevent it from touching. Therefore, for example, the optical disk 10 that does not cause damage such as the optical disk 10 being damaged by contact can be driven to rotate favorably.

In particular, the TM cover member 300 is made of a relatively soft material such as an aluminum alloy. Even if it is made of heavy metal, deformation such as stagnation can be prevented by the reinforcing portion 310, so that the traverse mechanism 200 and the disk device 100 can be lightened by using a lightweight metal, and the TM cover member 300 The processability can be improved, the productivity can be improved, and the manufacturing cost can be reduced.

[0024] The reinforcing portion 310 is provided at the downstream opening edge 302A of the processing opening 301.

For this reason, in particular, it is possible to reinforce a position that is easily contacted by stagnation due to the occurrence of a negative pressure state, and it is possible to prevent inconvenience due to contact with an efficient and simple configuration and to easily obtain a good rotational drive.

[0025] Further, the reinforcing portion 310 is provided in the vicinity of the position facing the outer peripheral portion of the optical disc 10 at the downstream opening edge 302A.

For this reason, particularly in response to the outer peripheral side of the optical disc 10 where the linear velocity increases, it is possible to reinforce the portion where the negative pressure state is likely to occur and the stagnation is likely to occur. Good rotational drive can be easily obtained.

[0026] Further, the reinforcing portion 310 is bent so as to protrude in a separating direction on the opposite side with respect to the optical disc 10 held on the turntable 221.

Therefore, the reinforcing portion 310 does not protrude from the disc facing surface 303 toward the optical disc 10, and the reinforcing portion 310 is in contact even if the optical disc 10 is squeezed toward the TM cover member 300 due to the occurrence of a negative pressure state. Can be prevented.

Furthermore, it is formed in a stepped shape so that it is embossed in the direction of separation, that is, a stepped portion 311 is formed. As a result, the air flow generated by the high-speed rotation of the optical disc 10 hits the step portion 311 to generate a turbulent flow that becomes an air flow toward the recording surface 11 side of the optical disc 10. Accordingly, force acts in a direction away from each other due to turbulent flow, and it is possible to reliably prevent at least one of the TM cover member 300 and the optical disc 10 from being pinched.

[0027] The reinforcing portion 310 is formed by embossing.

For this reason, for example, the TM cover member 300 such as the outer edge shape and the processing opening 301 can be formed simultaneously with one operation, and a separate process for forming the reinforcing portion 310 is not required, and the productivity is impaired. Can be reinforced without any problems. [0028] Then, the TM cover member 300 having the reinforcing portion 310 as described above is provided in the disk device 100 in which the traverse mechanism 200 is disposed in the vicinity of the storage position of the optical disk 10 in the case body 110.

The optical disk 10 is rotated at a high speed to generate a negative pressure state. In particular, in the slim drive type disk device 100, the negative pressure is generated between the optical disk 10 and the TM cover member 300 where the gap between the optical disk 10 and the TM cover member 300 is narrow. Even in a configuration in which the occurrence of this is likely, contact between the optical disc 10 and the TM cover member 300 can be reliably prevented.

[Modification of Embodiment]

The present invention is not limited to the above-described embodiment, but includes the following modifications as long as the object of the present invention can be achieved.

In other words, in the above-described embodiment, the disk device 100 is a slim-drive type disk device that can be mounted on a notebook personal computer, an in-vehicle audio device, or an electrical device such as a navigation device. The power that illustrated 100 is not limited to this! For example, as described above, the present invention can also be applied to a relatively large disk device mounted on a desktop personal computer or the like. Furthermore, the present invention can also be applied to a disk device mounted on a V-type video device or the like that performs video data recording / playback processing, for example.

Further, the force exemplified in the disk device 100 having a structure in which the traverse mechanism 200 is provided in the tray portion 120 provided in the case body 110 so as to be able to advance and retreat. For example, when the optical disk 10 is directly inserted into the case body from the slit, Even a disk unit. In this case, for example, the traverse mechanism 200 is swingably provided inside the case body, and the TM cover member 300 having the reinforcing portion 310 is provided on the upper surface side of the traverse force 200, that is, the side facing the inserted optical disk 10. Just set up!

[0031] The reinforcing portion 310 may also be provided on the upstream opening edge 302 in the rotational direction of the optical disc 10 in the force processing opening 301 described with reference to the downstream opening edge 302A. And not only embossing but various processing methods can be utilized.

Furthermore, a force provided corresponding to the outer peripheral side of the optical disc 10 may be provided, for example, in the entire region of the downstream opening edge 302A. Thus, by providing the entire area, for example, optical disks of different diameters It can be applied to a configuration in which 10 is mounted.

The TM cover member 300 may be provided not only on the edge of the downstream opening edge 302A or in the vicinity of the edge but also on the substantially entire surface of the TM cover member 300.

[0032] Further, as shown in FIG. 6, the reinforcing portion 310 may be bent in a plurality of steps in a cross-sectional wave shape.

Furthermore, it may be bent in a plurality of steps in a so-called step shape.

By forming these in multiple stages, the strength against sag can be further improved, inconvenience due to contact can be more reliably prevented, and good rotation drive can be obtained.

In particular, in the case of bending with a cross-sectional wave shape, it can be easily provided on almost the entire surface of the TM cover member 300, and overall reinforcement can be easily obtained. The cost can be easily reduced.

Further, as the reinforcing portion 310, as shown in FIG. 7, the opening edge 302 may be bent to the side opposite to the optical disc 10.

In the configuration shown in FIG. 7, the edge on the optical disc 10 side at the downstream opening edge 302A becomes a curved surface by folding together with the strength improvement, and the effect of preventing contact due to the generation of airflow toward the optical disc 10 is also obtained.

Note that the folded formation shown in FIG. 7 may be folded back to the optical disc 10 side.

[0034] Further, the reinforcing portion 310 may be further folded back and formed thick as shown in FIG.

In the configuration shown in FIG. 8, the downstream opening edge 302A becomes a curved surface in cross-section by folding, and an effect of preventing contact due to the generation of airflow toward the optical disc 10 is obtained, and processing such as burr on the opening edge 302 is performed. This eliminates the need for improved manufacturability.

Note that the folded formation shown in FIG. 8 may be folded back to the optical disc 10 side.

[0035] Further, as shown in FIG. 9, the reinforcing member 311 may be bonded to form the reinforcing portion 310 as a thick structure.

As shown in FIG. 9, by forming a thick wall on the disk facing surface 303 side, it is possible to prevent the reinforcing part 310 from interfering with the information processing part 240 moving on the opposite side. It can be easily applied to conventional configurations that do not require the formation of the information processing unit 240. wear. In particular, the structure in which the reinforcing member 311 is attached can be easily applied by simply attaching it to the conventional TM cover member.

Note that the reinforcing member 311 shown in FIG. 9 may be attached to the surface opposite to the disk facing surface 303.

Further, the reinforcing member 311 is provided with an inclined surface or a stepped portion 311 where the downstream side opening edge 302A side force gradually becomes thicker on the surface facing the optical disc 10 so that air flow is generated toward the optical disc 10. In addition, it is possible to reliably prevent inconvenience due to contact.

[0036] Not only the position of the downstream opening edge 302A but also the vicinity of the opening edge 302 (302A) slightly separated from the opening edge 302 as shown in FIG.

According to the configuration shown in FIG. 10, as described above, the optical disk 10 is bent in multiple stages in the rotation direction, and the strength is further improved, and the step portion 311 is formed to form the disk facing surface 303. Thus, an air flow toward the optical disk 10 is also obtained, and contact due to proximity to each other can be prevented.

In FIG. 10, it may be formed so as to protrude toward the opposite side. As a result, as described above, the reinforcing portion 310 is formed so as to protrude in a direction away from the optical disc 10, and contact of the reinforcing portion 310 can be prevented.

Further, as the reinforcing portion 310, for example, as shown in FIGS. 11 and 12, the step-shaped reinforcing portion 310 may be formed in a state protruding from the downstream opening edge 302A in a tongue-like shape.

In particular, as in the embodiment shown in FIG. 1 to FIG. 5, by forming a step in the direction away from the optical disc 10, the contact of the reinforcing portion 310 is prevented, and the air flow toward the optical disk 10 by the step 311 is achieved. The effect of can also be obtained.

[0038] Further, the force shown in the example in which the TM cover member 300 is formed of a light metal such as an aluminum alloy, for example, may be a structure formed of a steel plate or the like as in the prior art. Even in this case, the reinforcement can prevent inconvenience due to contact due to stagnation or the like. Therefore

In addition, a light weight due to the thin formation of the steel sheet can also reduce the cost.

[0039] In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like as long as the object of the present invention can be achieved.

[Effect of the embodiment] According to the embodiment, the reinforcing member 310 is provided on the TM cover member 300 of the traverse mechanism 200 in the disk device 100.

Therefore, for example, when the information processing of the optical disc 10 is performed, a negative pressure state that may occur when the optical disc 10 is rotated at a high speed causes the TM cover member 300, particularly the vicinity of the downstream opening edge 302A, to face the optical disc 10. It is possible to prevent stagnation and contact. Therefore, for example, the optical disk 10 that does not cause damage such as the optical disk 10 being damaged by contact can be driven to rotate favorably.

Industrial applicability

INDUSTRIAL APPLICABILITY The present invention can be used for a recording medium driving device that rotatably holds a disk-shaped recording medium such as an optical disk, and a disk device that includes the recording medium driving device.

Claims

The scope of the claims

[1] A case body capable of storing a disk-shaped recording medium is provided in the vicinity of the storage position of the recording medium, and a recording medium holding section that rotatably holds the recording medium; and the recording medium holding section A cover member having a disk facing surface substantially parallel to the disk surface of the recording medium in a state where the medium is held, and a processing opening is formed on the recording medium, and recording is performed on the recording medium through the processing opening of the cover member. At least one of a reading process for reading the recorded information and a writing process for writing information to the recording medium, and in the radial direction of the recording medium held by the recording medium holding unit. An information processing unit provided substantially movably along;

A reinforcing portion provided on at least one of the opening edge of the processing opening of the cover member and the vicinity of the processing opening;

A recording medium driving apparatus comprising:

[2] The recording medium driving device according to claim 1,

The reinforcing portion is provided on at least one of the opening edge of the processing opening portion and the vicinity of the opening edge located on the downstream side in the rotation direction of the recording medium.

A recording medium driving apparatus characterized by the above.

[3] The recording medium driving device according to claim 1 or claim 2,

The reinforcing portion is provided at a position facing at least the outer peripheral edge side of the recording medium held by the recording medium holding portion.

A recording medium driving apparatus characterized by the above.

[4] The recording medium driving device according to any one of claims 1 to 3 and claim 3,

The reinforcing portion is provided in a state of protruding in a direction away from the recording medium held by the recording medium holding portion.

A recording medium driving apparatus characterized by the above.

[5] The recording medium driving device according to any one of claims 1 and 4,

The reinforcing portion is held by the disk facing surface and the recording medium holding portion. Formed thick in the opposite direction of the recording medium

A recording medium driving apparatus characterized by the above.

[6] The recording medium driving device according to claim 5,

The reinforcing portion is formed by folding back from the opening edge.

A recording medium driving apparatus characterized by the above.

[7] The recording medium driving device according to claim 5,

The reinforcing portion is formed by bonding a reinforcing member.

A recording medium driving apparatus characterized by the above.

[8] The recording medium driving device according to any one of claims 1 to 4 and claim 4,

The reinforcing portion is formed in a step shape substantially along the opening edge of the processing opening and in the rotation direction of the recording medium.

A recording medium driving apparatus characterized by the above.

[9] The recording medium driving device according to claim 8,

The reinforcing portion is formed by embossing so as to protrude from the disc facing surface of the cover member and one surface side of the recording medium held in the recording medium holding portion.

A recording medium driving apparatus characterized by the above.

[10] The recording medium driving device according to any one of claims 1 to 4 and claim 4,

The reinforcing part is formed by being bent at the opening edge of the processing opening.

A recording medium driving apparatus characterized by the above.

[11] The recording medium driving device according to any one of claims 1 to 10,

The cover member is made of a lightweight metal.

A recording medium driving apparatus characterized by the above.

[12] a case body capable of storing a disk-shaped recording medium;

The recording medium driving device according to claim 1 or claim 11 provided in the vicinity of the storage position of the recording medium in the casing,

A disk device comprising: