JP2010044836A - Disk drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk drive using an efficient design. <P>SOLUTION: This disk drive 1 has a turning member 11 including a lid 11a formed at a disk insertion/eject slot 12 and supported to flip up, and a roller support 11d supporting the roller 16 for carrying the disk D rotatably and moving the roller 16 up and down as the lid 11a flips up. A fold is formed at an edge 11b of the lid 11a, and when the lid 11 turns down, the tip of the fold is brought into contact with the step 2a of the case 2 and closes the disk insertion/eject slot 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a disk device.

  2. Description of the Related Art A disk device that reads and records music and other various data recorded on a reading medium (hereinafter simply referred to as a disk) such as a compact disk, a DVD, and a Blu-ray disk is known. The disk device has a disk insertion / discharge port for inserting and discharging a disk. External dust or the like may enter the disk device through the disk insertion / discharge port, and the disk device may cause malfunction or failure due to the dust or the like.

  In particular, in an in-vehicle disk device provided in a vehicle such as an automobile, fine dust or dust is easily generated in a space in the vehicle, and adverse effects on the disk device due to such dust are regarded as a problem. Therefore, a disk device having a dustproof structure for a disk device for preventing foreign matter from entering from the disk insertion / discharge port has been proposed.

As a dust-proof structure of a conventional disk device, a configuration is known in which a shutter that opens and closes a disk insertion / discharge port is rotated (for example, Patent Document 1).
FIG. 8 shows a disk device 100 of Patent Document 1.
As shown in FIG. 8, the disk device 100 has a shutter member 112 inside the disk insertion / ejection port 111. The shutter member 112 is rotatably supported by the rotation support portion 113. The shutter member 112 includes a shutter 114 that closes the disk insertion / ejection port 111 and a pin 115 that is provided at a position facing the shutter 114 with the rotation support portion 113 interposed therebetween. The pin 115 is provided so as to be positioned in the groove 117 of the slide cam 116. When the position of the pin 115 is guided by the operation of the slide cam 116, the shutter member 112 rotates, and the shutter 114 opens the disc insertion / discharge port. Open and close.
JP 2007-87554 A

  Incidentally, the disk device disclosed in Patent Document 1 is a so-called slot-in type disk device in which a disk is directly inserted or ejected from a disk insertion / ejection port. The slot-in type disk apparatus has a roller for conveying the inserted disk into the disk apparatus and conveying and ejecting the disk in the disk apparatus to the outside of the disk apparatus.

  When the roller is driven, the disc is inserted or ejected, so the disc insertion / ejection opening is opened. That is, there is a correlation between the roller driving timing and the disk insertion / ejection opening / closing timing.

However, the disk device of Patent Document 1 has a configuration in which the shutter member 112 and the shutter member 112 provided separately from the configuration for driving the roller are operated. Accordingly, the conveyance of the disk by the roller and the opening / closing of the disk insertion / ejection port by the shutter member 112 are driven by separate drive units, which is inefficient.
In addition, a space for providing separate drive units is required, leading to an increase in the size of the disk device. Equipment space in the vehicle is limited, and it is difficult to use a disk device that requires a large space. In addition, since the configuration for driving the roller and the configuration for operating the shutter member 112 and the shutter member 112 are provided separately, the number of parts increases, resulting in an increase in cost.

  An object of the present invention is to provide a disk device having an efficient design.

  According to the first aspect of the present invention, a lid portion that is provided at a disk insertion / ejection port of a disk device housing and is pivotally supported so as to be able to move up and down, and a roller that performs a disk transport operation are rotatably supported. And a support part that lifts and lowers the roller in accordance with the raising / lowering operation of the lid part, and a turning member provided integrally, a bent part is provided at a tip part of the lid part, and the lid part is turned down. In this disk device, the leading edge of the bent portion abuts on the opening edge of the insertion / discharge opening at a position facing the leading edge to close the insertion / discharge opening. .

  According to a second aspect of the present invention, in the disk device according to the first aspect, the opening of the insertion / discharge opening is formed so that the opening is inserted or discharged from the inner surface of the disk surface toward the outer periphery. It is characterized in that the gap is provided to be small.

  According to the present invention, it is possible to provide a disk device with an efficient design.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a disk device 1 according to an embodiment of the present invention. FIG. 1A shows a case where the disc insertion / discharge opening 12 is open, and FIG. 1B shows a case where the disc insertion / discharge port 12 is closed.

  The disk device 1 has a rotating member 11. The rotating member 11 is provided so as to be rotatable with respect to the box-shaped housing 2 of the disk device 1, and the lid portion 11 a is lifted by the rotating operation of the rotating member 11 so as to open the disk insertion / ejection port 12. Open and close. As shown in FIG. 1 (a), the disc insertion / discharge port 12 opens when the lid portion 11a is lowered downward, and as shown in FIG. 1 (b), the disc insertion / discharge port is opened when the lid portion 11a is looked upward. 12 closes.

  The disk device 1 inserts or ejects a disk from a disk insertion / ejection port 12. The disc insertion / ejection port 12 is a gap between the lid portion 11 a that is turned downward and the housing 2 of the disc device 1. As shown in FIG. 1A, the disc insertion / ejection port 12 is provided so that the gap of the opening becomes smaller from the center portion of the disc surface to be inserted or ejected toward the outer peripheral portion.

FIG. 2 shows a configuration of the rotating member 11.
As shown in FIG. 2, the lid portion 11 a has an edge portion 11 b that forms a bent portion having a saddle-shaped cross section. The lid 11a abuts a step 2b (see FIG. 3) of the box 2 to be described later and closes the disc insertion / ejection port 12 when the pivoting member 11 pivots upward. The edge portion 11b is inclined so as to approach the disk surface of the disk to be inserted or ejected from the center of the disk surface toward the position of the outer periphery, and in cooperation with the edge 2a of the casing 2 described later, the disk insertion / ejection port 12 is formed.

FIG. 3 shows a structure in the vicinity of the disk insertion / discharge port 12 of the housing 2. The housing 2 shown in FIG. 2 is upside down of the disk device 1 shown in FIG.
As shown in FIG. 3, the housing 2 has an edge 2 a in the vicinity of the disc insertion / discharge port 12. The edge 2a is inclined so as to approach the disk surface of the disk to be inserted or ejected from the center of the disk surface toward the position of the outer periphery, and in cooperation with the edge 11b of the rotating member 11, the disk insertion / ejection port 12 is provided. Form.

  The housing 2 has a stepped portion 2b on the disc ejection direction side with respect to the edge portion 2a. The step 2b is inclined so as to move away from the disk surface of the disk as it goes from the center of the disk surface of the inserted or ejected disk to the position of the outer peripheral portion.

FIG. 4 shows a diagram in which the disk device 1 is turned upside down.
As shown in FIGS. 1B and 4, the edge portion 11 b of the rotating member 11 and the stepped portion 2 b of the housing 2 are brought into contact with each other to close the disc insertion / ejection port 12.

  FIG. 5 is a cross-sectional view taken along the line AA in FIG. FIG. 5A shows the disk D being inserted or ejected, and FIG. 5B shows the disk D after being inserted.

  The rotating member 11 has a rotating shaft 11c. The rotation shaft 11c is rotatably supported by a support portion (not shown) provided in the housing 2. The rotation member 11 rotates about the rotation shaft 11c.

  A portion of the rotating member 11 closer to the lid portion 11a than the rotating shaft 11c is urged toward the insertion direction side of the disk D by the spring 14 (left side in FIGS. 5A and 5B). That is, the lid portion 11 a is opened downward by the bias of the spring 14 to open the disc insertion / ejection port 12. The rotating member 11 is provided so as to open the disc insertion / ejection port 12 when the disc D is not in the disc apparatus 1.

  As shown in FIGS. 2 and 5A and 5B, the rotating member 11 has a roller support portion 11d. The roller support part 11d supports the roller 16 rotatably. The roller support portion 11d is provided on the opposite side of the lid portion 11a with the rotation shaft 11c interposed therebetween, and performs a rotation operation in the opposite direction to the lid portion 11a when the rotation member 11 rotates. Accordingly, as shown in FIG. 5A, when the lid portion 11a is rotated downward and the disc insertion / discharge opening 12 is opened, the roller support portion 11d is rotated upward and the roller 16 is moved to the disc D. It is made to contact | abut to the lower surface part.

  The roller 16 is formed integrally with the gear 16a. The gear 16 a is provided so as to mesh with the roller drive gear 19 at a position where the roller 16 contacts the lower surface of the disk D. The roller drive gear 19 is rotationally driven by a drive unit such as a roller drive motor (not shown) and transmits a rotational force to the roller 16 through the gear 16a. Therefore, when the roller 16 is in the position shown in FIG. 5A, the roller 16 rotates and transports the disk D.

  The insertion detection of the disk D is performed by the disk insertion detection sensor 3. The disk insertion detection sensor 3 is provided inside the disk insertion / discharge port 12 and detects the disk D to be inserted or discharged.

  The position of the inserted disk D is detected by the disk end detection sensor 4. The disk end detection sensor 4 detects the proximity of the outer peripheral edge of the disk surface of the disk D. By detecting the disk D by the disk end detection sensor 4, the rotation of the roller 16 is controlled so that the central hole D 1 of the disk D is positioned above the disk holding part 6 of the turntable 5.

  The turntable 5 is a mechanism that rotationally drives the disk D, and has a disk holding part 6 on the top thereof. The disc holding unit 6 holds the disc D by fitting with a hole D1 provided in the center of the disc surface of the disc D.

  After the hole D1 at the center of the disk D is positioned above the disk holding part 6 of the turntable 5, the rotating member 11 rotates and the roller support part 11d and the roller 16 are lowered, and the roller 16 is the disk. Separated from the lower surface of the. At the same time, the lid 11a looks up and closes the disc insertion / ejection slot 12.

  A disc clamp lever 7 is provided above the turntable 5. The disc clamp lever 7 is pivoted up and down with respect to the disc holding portion 5. When the center hole D1 of the disk D is located above the disk holding part 6 of the turntable 5, as shown in FIG. 5 (b), the disk clamp lever 7 is lowered downward, so that the clamper at the tip part of the disk clamp lever 7 is lowered. 7a presses the disk D downward, and the disk D is fitted into the disk holding part 6. The turntable 5 rotationally drives the disk D fitted in the disk holding unit 6 and reads the recorded content by a reading unit (not shown). At this time, the lid portion 11a closes the disc insertion / ejection port 12, thus preventing foreign matter such as dust from entering the disc device 1.

  When ejecting the disc D, the disc clamp lever 7 is first raised upward. Thereafter, the rotating member 11 is rotated so as to lower the lid portion 11a downward, and the disc insertion / ejection port 12 is opened. At the same time, the roller support portion 11 d looks up and pushes up the disk D through the roller 16. The pushed-up disc D is disengaged from the disc holding part 6. Thereafter, the roller 16 rotates to eject the disk D.

  The disc D is inserted into the disc device 1 manually. The instruction to eject the disk D is made by operating an eject button (not shown).

Next, the mechanism of the rotating operation of the rotating member 11 and the disc clamp lever 7 will be described.
FIG. 6 shows a cross-sectional view taken along the line BB in FIG. 6A shows the case where the roller support 11d and the disc clamp lever 7 are rotated upward, and FIG. 6B shows the case where the roller support 11d and the disc clamp lever 7 are rotated downward. Show.

  The dustproof mechanism 10 of the disk device has a slide cam 21 that functions as an interlocking unit. The slide cam 21 is provided inside the wall surface of the side portion of the housing 2. The slide cam 21 is a plate-like member provided so as to be operable along the insertion / ejection direction of the disk D, and is operated by rotational driving of a pinion gear 22 that meshes with the gear portion 21a. The operating direction of the slide cam 21 is along the conveying direction of the disk D. The pinion gear 22 is rotationally driven by a drive unit such as a slide cam drive motor (not shown).

As shown in FIGS. 6A and 6B, the slide cam 21 has slide grooves 23 and 24 provided as grooves. The slide groove 23 has a pin 7b provided integrally with the disc clamp lever 7 inside.
The slide groove 24 has a pin 11e provided integrally with the rotating member 11 inside. The pin 11e is provided on the roller support portion 11d side of the rotating member 11. The rotating member 11 urged to rotate the lid portion 11d downward and the roller support portion 11d upward by the spring 14 changes its rotational position when the pin 11e contacts the upper inner wall of the slide groove 24. Is retained.

  Each of the slide grooves 23 and 24 has inclined portions 23a and 24a for guiding each pin held inside the slide cam 21 in the vertical direction as the slide cam 21 is operated. Accordingly, as shown in FIG. 6A, when the slide cam 21 is positioned on the ejection direction side (right side in FIG. 6) of the disk D, each pin is guided upward along the inclined portion of each slide groove. Therefore, the disc clamp lever 7 and the roller support portion 11d are raised upward, and the lid portion 11a is lowered. On the other hand, as shown in FIG. 6B, when the slide cam 21 is positioned on the insertion direction side of the disk D (left direction in FIG. 6), each pin is guided downward along the inclined portion of each slide groove. Therefore, the disc clamp lever 7 and the roller support portion 11d are lowered and the lid portion 11a is looked upward. That is, the slide cam 21 rotates the disc clamp lever 7 and the rotating member 11 according to the displacement of the operating position, and moves the lid portion 11a and the roller support portion 11d up and down.

  The operating position of the slide cam 21 is performed by two slide cam position detection sensors 25 and 26. The slide cam position detection sensor 25 is provided on the insertion direction side of the disk D (left side in FIG. 6) with respect to the slide cam 21 and detects the proximity of the slide cam 21. The slide cam position detection sensor 24 is provided below the slide cam 21, and detects the position of the slide cam 21 based on a change in detection intensity caused by a step portion 21 b provided below the slide cam 21. The rotational drive of the pinion gear 22 is controlled so as to control the position of the slide cam 21 based on the detection results of the slide cam position detection sensors 25 and 26.

  Various control operations such as detection by each sensor and drive control of the turntable 5 and each drive motor are performed by a control unit (not shown).

As shown in FIGS. 5A and 5B, a substantially dustproof material 31 may be provided on the disk D discharge direction side with respect to the disk insertion / discharge port.
FIG. 7 shows a perspective view of the disk device 1 provided with a substantially dustproof material 31.
The substantially dustproof material 31 is a cloth such as felt, and is provided with a slit 31a through which the disk D can be inserted. As shown in FIG. 5A, the substantially dustproof material 31 bends along the disk D when the disk D is inserted, and does not hinder the insertion of the disk D. On the other hand, when the disk D is not inserted, the substantially dustproof material 31 closes the slit 31a as shown in FIG. The substantially dustproof material 31 is fixedly held by an external housing 32 that covers the disk device 1.

According to the embodiment described above, the lid member 11 a and the roller support portion 11 d are integrally provided on the rotating member 11. Therefore, since the opening / closing operation of the disk insertion / ejection port 12 and the contact or separation operation of the roller 16 with respect to the disk D can be performed simultaneously by the rotation operation of the rotation member 11, a disk device with an efficient design is provided. it can.
Further, the edge 11b is provided with a bent portion having a saddle-shaped cross section, and when the lid 11 is turned down, the leading edge of the bent portion is the leading edge of the lid 11 of the opening edge of the disc insertion / discharge port 12. The disc insertion / ejection port 12 is closed by abutting against the step 2a of the housing 2 at a position facing the disc. As a result, the disc insertion / discharge opening is closed well, so that a disc device capable of obtaining a good dustproof effect can be provided.

  Further, the disk insertion / ejection port 12 is provided so that the gap of the opening becomes smaller from the center of the disk surface of the disk D toward the outer periphery. As a result, the contact between the disk D and the inner wall of the disk insertion / discharge port 12 is limited to the outer peripheral end of the disk D. That is, the inner peripheral portion, which is the recording surface of the disc D, does not contact the disc insertion / ejection port 12, and the recording surface of the disc D is not damaged by contact with other members. Therefore, it is possible to provide a disk device that does not cause a reading defect or the like by damaging the recording surface of the disk D.

  The embodiment of the present invention should be considered that the embodiment disclosed this time is illustrative and not restrictive in all respects. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  For example, each sensor in the present embodiment is a sensor that has a light projecting unit and a light receiving unit and detects the reflection intensity of light emitted from the light projecting unit by the light receiving unit, but it is needless to say that the present invention is not limited to this. Yes. For example, a sensor that detects whether light is blocked by a detection target may be used.

  Further, the rotation operation of each part by the slide cam 21 may be a rotation operation by an individual drive unit.

  Moreover, you may have the disk insertion / discharge port 12 which is not the shape where the clearance gap of an opening becomes small toward the outer peripheral part from the disk surface center part of a disk. For example, a disc insertion / ejection port provided so that the upper and lower sides are parallel may be used.

Moreover, the rotation operation direction of each part is not limited to the above-mentioned embodiment.
Further, after the disc is ejected, the disc insertion / ejection port may be closed until the disc is inserted.

1 is a perspective view of a disk device according to an embodiment of the present invention. FIG. 1A shows a case where the disc insertion / ejection slot is open, and FIG. 1B shows a case where the disc insertion / discharge port is closed. The structure of a rotation member is shown. The structure near the disk insertion / discharge port of the housing is shown. The figure which turned the disk apparatus upside down is shown. It is AA sectional drawing of Fig.1 (a). FIG. 5A shows the disc being inserted or ejected, and FIG. 5B shows the disc after being inserted. It is BB sectional drawing of Fig.1 (a). 6A shows a case where the roller support portion and the disc clamp lever 7 are rotated upward, and FIG. 6B shows a case where the roller support portion and the disc clamp lever 7 are rotated downward. It is a perspective view of a disk device provided with a substantially dustproof material. 1 is a diagram showing a disk device of Patent Document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Case 3 Disc insertion detection sensor 4 Disc end detection sensor 5 Turntable 6 Disc holding part 7 Disc clamp lever 11 Rotating member 11a Cover part 11b Edge part 11d Roller support part 12 Disc insertion / discharge port 14 Spring 16 Roller 19 Roller Drive gear 21 Slide cam 22 Pinion gear 25, 26 Slide cam position detection sensor 31 Dust-proof material

Claims (2)

A lid provided at a disc insertion / ejection port of a disk device housing and pivotally supported so as to be able to move up and down, and a roller for carrying the disk are rotatably supported, and the lid can be raised and lowered. And a support member for moving the roller up and down, and a rotating member provided integrally,
A bent portion is provided at the tip of the lid, and the tip edge of the bent portion is located at the tip edge of the opening edge of the insertion / discharge port when the lid is turned down as the roller moves up and down. A disk device characterized in that the insertion / discharge port is closed by abutting against an opening edge at an opposing position.   The opening of the insertion / ejection port is provided so that a gap between the openings becomes smaller from an inner periphery of the disk surface to be inserted or ejected toward the outer periphery. Disk unit.

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