JP5003915B2 - Disk device and electronic apparatus equipped with the same - Google Patents

Description

  The present invention relates to a disk device capable of automatically ejecting a disk and an electronic apparatus equipped with the same.

  The disk device accesses the disk by moving the pickup head by a sled motor while rotating the disk mounted on the turntable by a spindle motor, and records the data at high density, or reads and reproduces the data on the disk. To do. This disk device is used in an electronic device such as a computer or a car navigation device, or is externally attached.

  There are two types of disk devices: a slot-in type in which a disk is loaded alone from a slot provided on the front surface of the main body case, and a tray-in type in which a disk is loaded via a disk tray. In the slot-in type disk device, when the disk is inserted into the slot, the transport motor rotates forward, and the disk is held by a disk transport mechanism (disk loading mechanism) having a plurality of arms and loaded into the main body case. When the transport motor rotates in the reverse direction, the disk is ejected out of the main body case by the disk transport mechanism.

  In the tray-in type disk device, a disk tray on which a disk is placed moves between a storage position stored inside the main body case and a pull-out position pulled out from the main body case by the rotation of the transport motor. When the transport motor rotates forward, the disk tray moves from the drawer position to the storage position, and the disk is loaded into the main body case. When the transport motor rotates in the reverse direction, the disk tray moves from the storage position to the pull-out position, and the disk is ejected out of the main body case.

  In the slot-in type, the bezel is attached to the front surface of the main body case, and in the tray-in type, the bezel is attached to the front surface of the disc tray. In either case of slot-in or tray-in, the bezel is usually provided with an eject button. When this eject button is operated, an eject signal is input to a drive control circuit that controls the drive of the disc transport mechanism. In response to this, the drive control circuit reversely rotates the transport motor, and ejects the disk loaded with the disk transport mechanism out of the case body.

  By the way, when the disk device unitized as described above is incorporated into an electronic device such as a personal computer, for example, the bezel of the disk device is not necessarily exposed to the outside, as is known in Patent Document 1. In such a case, an interlocking mechanism such as an arm is used so that the eject button of the disk device is operated by the operation of the eject button provided on the exterior case of the electronic device.

However, the disk device described in Patent Document 1 requires a mechanical interlocking mechanism between the eject button of the disk device built in the electronic device and the eject button provided in the outer case of the electronic device. Assembling man-hours increase, causing cost increase. In order to avoid this, the eject button on the disk device side and the eject switch for detecting the operation thereof are omitted, and an eject button and an eject switch are provided in the outer casing of the electronic device, and an eject signal obtained from the eject switch is provided to the disk device. It is advantageous to configure so as to input to the drive control circuit.
Japanese Patent Laid-Open No. 2001-067760

  However, the eject switch on the disk device side is connected to the drive control circuit via a common flexible printed circuit board (FPC) together with a conveyance motor and a sled motor used for head feeding for data recording / reproduction. Usually it is. In order to reduce the cost due to the common use of parts, this FPC is mostly shared even when an eject switch is not required on the disk device side. Therefore, another signal transmission system is required in addition to the above-mentioned shared FPC so that an eject signal can be input to the drive control circuit from an eject button provided on the outer case of the electronic device, and wiring and soldering of electrical wiring is required. Considering the attachment work, etc., it is a negative factor in improving the efficiency of manufacturing the disk device itself or an electronic device incorporating the disk device.

  The present invention has been made to solve the above-described problems, and provides a disk device capable of selecting and connecting two transmission cables for transmitting an eject signal according to a usage pattern, and an electronic apparatus including the disk device. For the purpose.

In order to achieve the above object, a disk apparatus according to the present invention accesses a disk loaded in a main body case to record / reproduce data, and is driven by a motor. The disc is loaded into a predetermined position of the disc, or a disc transport mechanism for ejecting the disc out of the main body case, and in response to an input of an eject signal, the loaded disc is ejected out of the main body case. A drive control circuit for driving the disk transport mechanism, a first transmission cable for transmitting an eject signal from an eject switch provided in the main body case , and a second transmission for transmitting the eject signal supplied from outside the main body case Either one of the cables is selected and connected, either one of the above Comprising a connector for inputting an eject signal al to the drive control circuit, wherein the connector is characterized in that it is exposed to the outside from the main body case.

The drive control circuit and the connector are preferably provided on a common circuit board.

  In addition, a plurality of insertion openings through which the first transmission cable is sequentially inserted when the first transmission cable is connected to the connector are arranged in a row on one surface of the main body case in which the opening for exposing the connector is formed. It is preferable that they are formed side by side.

  The electronic device of the present invention is provided in the disk device, a disk device control circuit that controls the disk device, an exterior case that houses the disk device, and the exterior case, and the second transmission cable includes the electronic device. And a signal transmitter for transmitting an eject signal. Examples of the electronic device include a personal computer main body, a car navigation device, a CD player, a DVD player, and the like that constitute a part of the computer system.

  According to the present invention, the first transmission cable for transmitting the ejection signal from the ejection switch provided in the body case to the connector for inputting the ejection signal for ejecting the disk loaded in the body case to the drive control circuit. And a second transmission cable for transmitting an eject signal supplied from outside the case body are selected and connected, so that the first transmission cable and the second transmission cable are selected according to the usage of the disk device. And which one to connect to the connector.

  Hereinafter, an embodiment in which the present invention is applied to a slot-in type disk device will be described. As shown in FIG. 1, the disk device 2 includes a main body case 3 and a bezel 4. The bezel 4 is provided with a slot 4a into which the disc 5 is inserted, an eject button 6 for instructing ejection of the disc 5, and an indicator opening 7 for displaying the operating state of the disc device 2.

  As shown in FIGS. 2 and 3, the bezel 4 is attached to the front surface 3 a of the main body case 3. Two locking holes 8 are formed in the front surface 3a. Two hook portions 4 b to be inserted into the locking holes 8 are formed in the bezel 4. When the hook portion 4b is inserted into the locking hole 8, the hook portion 4b is locked in the locking hole 8, and the bezel 4 is detachably attached to the main body case 3.

  An eject substrate 10 is disposed between the main body case 3 and the bezel 4. An eject switch 11 and an LED 12 are attached to the eject board 10. The eject substrate 10 is affixed to the front surface 3 a of the main body case 3 with a double-sided tape 13.

  One end 15 a of a flexible flat cable (hereinafter referred to as a flat cable) 15 is connected to the eject board 10. The other end portion of the flat cable 15 is provided with a connection terminal portion 15b where the conductor is exposed.

  The front surface 3a of the main body case 3 is formed with a cable insertion opening 17 into which the flat cable 15 is inserted and a disk insertion opening 18 into which the disk 5 from the slot 4a is inserted.

  First to third insertion openings 21 to 23 through which the flat cable 15 is inserted are formed on the bottom surface 3 b of the main body case 3. The flat cable 15 inserted into the main body case 3 from the cable insertion opening 17 once goes out of the main body case 3 from the first insertion opening 21, enters the main body case 3 from the second insertion opening 22, and enters the third insertion opening. 23 goes out of the main body case 3 again. Thereby, the floating of the flat cable 15 is prevented. The flat cable 15 may be attached to the main body case 3 with an adhesive tape to prevent the floating.

  A drive control board 25 for controlling the drive of the disk device 2 is disposed in the main body case 3, and a connector 26 is attached to the drive control board 25. The connector 26 is exposed from an exposure opening 28 formed in the bottom surface 3 b of the main body case 3. A shielding sheet (not shown) that shields the openings 21 to 23 and 28 is attached to the bottom surface 3 b of the main body case 3.

  A connection opening 26 a is formed in the connector 26. A connection terminal is provided in the connection opening 26a. The connection terminal portion 15b is inserted into the connection opening 26a so as to be freely inserted and removed. In the disk device 2, the connection terminal portion 15 b is connected to the connection terminal in the connection opening 26 a by inserting the connection terminal portion 15 b into the connection opening 26 a, and the eject switch 11 and the LED 12 are connected to the connector 26.

  As shown in FIG. 4, the disk device 2 includes a known disk transport mechanism 31, a transport motor 32, a head unit 33 having a pickup head, a thread motor 34, a spindle motor 35, a turntable 36, A disk drive controller 37 for controlling these is provided. The disk drive controller 37 is provided on the drive control board 25, and a connector 26 is connected thereto.

  The spindle motor 35 is disposed in the substantially central portion of the main body case 3, the sled motor 34 is disposed in the vicinity of the spindle motor 35, and the transport motor 32 is disposed at the front end portion of the main body case 3 apart from the motors 34, 35. ing. The thread motor 34 and the spindle motor 35 are connected to the drive control board 25 by an FPC (not shown). In order to shorten the length of the FPC, the transport motor 32 is connected to the FPC by a connection cord (not shown), and is connected to the drive control board 25 via the FPC. Each motor 32, 34, 35 is driven in response to a control signal from the disk drive controller 37.

  The disk transport mechanism 31 is driven by a transport motor 32. When the transport motor 32 rotates forward, the disk transport mechanism 31 loads the disk 5 into the main body case 3, and when the transport motor 32 rotates reversely, approximately 1/3 of the disk 5 is ejected from the slot 4a. The disk 5 is ejected toward the head.

  The turntable 36 is fixed to the drive shaft of the spindle motor 35, and the disc 5 loaded by the disc transport mechanism 31 is mounted thereon. The head unit 33 accesses the disk 5 to record / reproduce data while moving in the radial direction of the disk 5 by driving the thread motor 34. In this embodiment, the data recording / reproducing means includes a head unit 33, a thread motor 34, and a spindle motor 35.

  Next, the operation of the disk device 2 will be described. When approximately 2/3 of the disk 5 is inserted into the slot 4a, the first switch of the disk transport mechanism 31 is turned on, and the disk drive controller 37 rotates the transport motor 32 forward. When the transport motor 32 rotates forward, the disk 5 is automatically loaded into the main body case 3 by the disk transport mechanism 31. Then, the disc 5 is mounted on the turntable 36 and set at the recording / reproducing position. When the disk 5 is set at the recording / reproducing position, the second switch of the disk transport mechanism 31 is turned on, and the disk drive controller 37 stops the transport motor 32. The disk 5 mounted on the turntable 36 is rotated by the spindle motor 35 together with the turntable 36, and data is recorded / reproduced by the head unit 33 that moves in the radial direction of the disk 5. The disk drive controller 37 lights the LED 12 in accordance with the operating state of the disk device 2. The lighting of the LED 12 can be confirmed through the indicator opening 7.

  When the disc 5 is ejected, the eject button 6 is pressed. When the eject button 6 is pressed, an eject signal is output from the eject switch 11. This eject signal is input to the disk drive controller 37 via the flat cable 15 and the connector 26. When the eject signal is input, the disk drive controller 37 stops the sled motor 34 and the spindle motor 35 and then rotates the transport motor 32 in the reverse direction. When the transport motor 32 rotates in the reverse direction, the disk transport mechanism 31 ejects the disk 5 toward the eject position. When the disk 5 is ejected to the eject position, the third switch of the disk transport mechanism 31 is turned on, and the disk drive controller 37 stops the transport motor 32. The ejected disc 5 is pinched by the operator's finger and pulled out from the slot 4a.

  The recording / reproducing apparatus 40 shown in FIGS. 5 and 6 includes a built-in type disk device 102. In this disk device 102, the bezel 4 is removed from the disk device 2, the connection terminal portion 15 b of the flat cable 15 is pulled out from the connector 26, and the eject board 10 and the flat cable 15 are removed. Other than that, the configuration is the same as that of the disk device 2.

  The recording / reproducing apparatus 40 includes an outer case 44 including a case main body 41 having an upper surface and a front surface that are open, an upper cover 42, and a front panel 43. The disk device 102 is fixed in the outer case 44.

  The front panel 43 is provided with a slot 43a into which the disk 5 is inserted, a power button 45, a playback button 46, a stop button 47, and an external eject button 48. The slot 43 a communicates with the disk insertion opening 18 of the disk device 102.

  An operation board 50 is arranged behind the buttons 45 to 48. The operation board 50 is provided with a power switch 51, a regeneration switch 52, a stop switch 53, and an external eject switch 54. One end portion 55 a of an external flat cable 55 is connected to the external eject switch 54. The other end portion of the external flat cable 55 is provided with a connection terminal portion 55b where the conductor is exposed. In the disk device 102, the connection terminal portion 55 b is connected to the connector 26.

  The recording / reproducing apparatus 40 is provided with a power supply unit 61 and a disk device controller 62. The disk device controller 62 is connected to the disk drive controller 37, the power switch 51, the playback switch 52, and the stop switch 53 of the disk device 102. The power supply unit 61 is connected to the disk device 102 and the disk device controller 62. In the recording / reproducing apparatus 40, when an outlet (not shown) is connected to a commercial power supply, the power supply unit 61 supplies a small amount of power to the disk device 102 and the disk device controller 62 even when the power is off. Supply. When the outlet is removed from the commercial power supply, the power supply from the power supply unit 61 is completely stopped.

  Next, the operation of the recording / reproducing apparatus 40 will be described. When the power button 45 is pressed, a power-on signal is input from the power switch 51 to the disk device controller 62. When the power-on signal is input, the disk device controller 62 turns on the power supply unit 61 to supply normal power to the disk device 102 and the disk device controller 62. The disc 5 inserted from the slot 43 a of the front panel 43 is set at the recording / reproducing position by the disc transport mechanism 31. The disk 5 set at the recording / reproducing position is rotated by the spindle motor 35 and data is recorded / reproduced by the head unit 33.

  When the stop button 47 is pressed, a stop signal is input from the stop switch 53 to the disk device controller 62. When the stop signal is input, the disk device controller 62 stops the sled motor 34 and the spindle motor 35 via the disk drive controller 37. When the playback button 46 is pressed, a playback signal is input from the playback switch 52 to the disk device controller 62. When the reproduction signal is input, the disk device controller 62 drives the sled motor 34 and the spindle motor 35 via the disk drive controller 37, and data is reproduced from the disk 5 by the head unit 33.

  When the external eject button 48 is pressed, an eject signal is output from the external eject switch 54. This eject signal is input to the disk drive controller 37 of the disk device 102 via the external flat cable 55 and the connector 26. When an eject signal is input, the disk drive controller 37 stops the sled motor 34 and the spindle motor 35 during recording / reproduction, and immediately reverses the transport motor 32 when stopped. When the transport motor 32 rotates in the reverse direction, the disk 5 is ejected to the eject position by the disk transport mechanism 31.

  If the external eject button 48 is pressed while the power is off, the disk drive controller 37 turns on the power supply unit 61 in response to the input of the eject signal. In this case, the power supply unit 61 supplies normal power only to the disk device 102, and the disk 5 is ejected by the disk transport mechanism 31. Since the disk 5 can be ejected without supplying normal power to the disk device controller 62, power consumption can be suppressed.

  Further, since the eject board 10 and the flat cable 15 are removed from the disk device 102 built in the recording / reproducing apparatus 40, the number of parts can be reduced and the cost can be reduced.

  Furthermore, it is possible to select which of the flat cable 15 and the external flat cable 55 is connected to the connector 26 according to the usage form of the disk device.

  Further, since the eject switch 11 and the drive control board 25 are connected by the flat cable 15 and separated from the connection of the thread motor 34 and the spindle motor 35 and the drive control board 25, all of them are driven by one common FPC. Compared with what is connected to the control board 25, FPC can be shortened. Thereby, cost reduction can be aimed at.

  Instead of the external eject button and the external eject switch, a receiving unit that receives an ejection radio wave from the remote controller may be provided, and the receiving unit and the connector may be connected by an external flat cable.

  In the above embodiment, the connection terminal portion provided at the tip of the flat cable is connected to the connector, but a plug is provided at the tip of the flat cable, and the plug may be connected to the connector. Good.

  Further, even in the built-in type disk device 102, when the bezel is exposed from the front panel of the recording / reproducing apparatus, a new bezel without an eject button opening and an indicator opening is attached. Since this new bezel does not require the opening, the degree of freedom in design is increased.

  In the above embodiment, the slot-in type disk device has been described. However, the present invention can also be applied to a tray-in type disk device.

1 is an external perspective view of a disk device. It is a bottom perspective view of the disk device. It is a disassembled perspective view of a disc apparatus. It is a block diagram which shows the electrical structure of the drive mechanism of a disc apparatus. It is a disassembled perspective view of a recording / reproducing apparatus. It is a block diagram which shows the electrical structure of the drive mechanism of a recording / reproducing apparatus.

Explanation of symbols

2,102 Disk device 3 Body case 11 Eject switch 15 Flat cable (first transmission cable)
21-23 First to third insertion openings 25 Drive control board 26 Connector 31 Disk transport mechanism 37 Disk drive controller (drive control circuit)
40 Recording / Reproducing Device 44 Outer Case 54 External Eject Switch (Signal Transmitter)
55 External flat cable (second transmission cable)
62 Disk device controller (disk device control circuit)

Claims (4)

Data recording / reproducing means for accessing / recording / reproducing data by accessing a disk loaded in the main body case;
A disk transport mechanism that is driven by a motor, loads the disk at a predetermined position in the main body case, or ejects the disk out of the main body case;
A drive control circuit for driving the disc transport mechanism to eject the loaded disc out of the main body case in response to an input of an eject signal;
Connecting said a first transmission cable which transmits the eject signal from the eject switch provided on the main body case, wherein one of the second transmission cable that transmits the eject signal supplied from outside the main body case is selected A connector for inputting an ejection signal from either one of the drive control circuits, and
The disk device is characterized in that the connector is exposed to the outside from the main body case . 2. The disk device according to claim 1, wherein the drive control circuit and the connector are provided on a common circuit board.   A plurality of insertion openings, through which the first transmission cables are sequentially inserted when the first transmission cable is connected to the connector, are arranged in a row on one surface of the main body case in which openings for exposing the connectors are formed. 3. The disk device according to claim 1, wherein the disk device is formed. A disk device according to any one of claims 1 to 3,
A disk device control circuit for controlling the disk device;
An outer case for housing the disk device;
An electronic device comprising: a signal transmission unit provided in the exterior case and configured to transmit the ejection signal to the second transmission cable.

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