JPH11232865A - Disk driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk driving device capable of making the thickness of a recording and reproducing device to be used thinner as much as possible and also making a connecting constitution in the recording and reproducing device simpler. SOLUTION: This device is provided with a drive main body 10 which has a disk housing part for housing recording medium and has the recessed part provided on the inner side in the inserting direction of the recording medium, a spindle motor 11 which is provided at the position of the main body 10 corresponding to the position of the recording medium, a head carriage 12 which is connected to the spindle motor 11 and stepping motor 13 which is connected to the head carriage 12 to drive the carriage 12 and the stepping motor 13 is positioned in a projecting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive used for a recording / reproducing apparatus.

[0002]

2. Description of the Related Art A conventional floppy disk (hereinafter referred to as FD)
Is mainly used for personal computers, and the most important theme in its size is to keep the thickness of the disk drive within a predetermined size range.

FIGS. 8A and 8B are schematic views showing a conventional FD disk drive. FIG. 8A is a front view and FIG. 8B is a side view. The drive main body 80 has a substantially square shape, and a circular spindle motor 8
1 is arranged. A head carriage 82 is provided on one side of the spindle motor 81 and below the center. The head carriage 82
A stepping motor 83 is attached so as to be connected to. Further, above the stepping motor 83,
A truck 00 sensor 84 is provided. An eject button 85 is attached to the other side of the spindle motor 81 and slightly above the center.

[0004]

When a disk drive having such a structure is used for applications other than a personal computer, for example, for a digital camera, the size of the camera body is determined by the projection area of the FDD as viewed from above. The other devices such as the camera block, the battery, the board, the strobe, the panel, the operation buttons, and the like all have a configuration that overlaps in the thickness direction of the camera body. That is, as shown in FIG. 9A, the disk drive (shaded in the figure) has a substantially square shape, so that the disk drive 92 overlaps with the lens 91 in the camera body 90. As a result, as shown in FIG. As shown in (b),
The camera body becomes thicker.

In a conventional disk drive, an eject button 85 for ejecting a disk is provided at the disk insertion slot, and the thickness in the width direction is increased by the size of the button. Further, if a protective cover is attached to the button so that the button is not carelessly pressed in use, the width becomes further larger.

Conventionally, a drive circuit of a recording / reproducing apparatus is disposed inside a drive, and once connected to a drive board by a connector for connection with a head or a motor.
It is configured to be connected to the main board again through another connector. Therefore, in this configuration, the number of connections is increased, reliability is reduced, and an extra connector is required, which is disadvantageous in cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a disk drive apparatus capable of reducing the thickness of a recording / reproducing apparatus to be used as much as possible and simplifying a connection configuration in the recording / reproducing apparatus. The purpose is to provide.

[0008]

Means for Solving the Problems In order to solve the above problems, the present invention has taken the following means. The present invention relates to a disk drive device mounted in a recording / reproducing device, which has a disk housing portion for housing a recording medium, and a drive main body having a concave portion provided on the back side in the insertion direction of the recording medium. A first motor provided in a portion of the drive main body corresponding to a position of the recording medium, a head carriage connected to the first motor, and a head carriage connected to the head carriage to drive the head carriage And a second motor, wherein the second motor is located in the recess.

According to this configuration, the lens block, the camera block, the battery, the board, the strobe, the panel, the operation buttons, and the like can be arranged outside the recess of the disk drive, and these devices overlap with the disk drive. Can be prevented from becoming thick.

[0010] In the disk drive apparatus of the present invention, the second motor includes a screw for driving the head carriage, and a tip of the screw opposite to the second motor has a recording medium. It is preferable that the recording medium is arranged so as to overlap the recording medium at the time of insertion. Further, it is preferable that the head carriage includes a guide shaft that guides the head carriage when the head carriage is driven, and the guide shaft is arranged to overlap the recording medium when the recording medium is inserted. As a result, space can be saved and downsizing can be realized.

The disk drive device of the present invention may further include a latch mechanism for holding the recording medium when the recording medium is inserted, and the latch mechanism may be present in a plane outer shape of the drive body. preferable. In addition, it is preferable that an eject portion for ejecting the recording medium is provided, and the eject portion exists within a planar outer shape of the drive main body.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1A and 1B are schematic views showing the structure of a disk drive device according to an embodiment of the present invention, wherein FIG. 1A is a front view and FIG. 1B is a side view. The drive main body (drive chassis) 10 has a substantially square shape, and has a protrusion 10
a is provided. That is, the drive body 10
An accommodation portion for accommodating the disk is provided therein, and a portion corresponding to the protruding portion 10a (a depth side in the disk insertion direction) is a concave portion. A circular spindle motor 11 is disposed substantially at the center of the drive body 10.
A head carriage 12 is provided on the spindle motor 11. The head carriage 12 has a protrusion 1
0a (concave portion). Therefore, the drive main body 10 has a rectangular shape, and has an outer shape having a cutout in a part.

Further, a stepping motor 13 is connected to the head carriage 12, and a track 00 sensor 14 is connected to the stepping motor 13. An eject button 15 is attached below the spindle motor 11.

FIGS. 2A and 2B are explanatory views showing details of the head carriage 12 in the disk drive device shown in FIG. 1, wherein FIG. 2A is a front view of a main part and FIG. 2B is a side view of the main part. 2, a stepping motor 13 is provided with a feed screw 21 extending downward. A guide shaft 22 having the same axial direction as the feed screw 21 is provided beside the feed screw 21.
Is arranged. In the upper and lower parts of the guide shaft 22,
A holding spring 23 is attached. The feed screw 21 and the guide shaft 22 are connected to the head carriage 12, as shown in FIG.

Therefore, the feed screw 21 is rotated by the driving of the stepping motor 13, whereby the head carriage 12 screwed to the feed screw moves up and down along the guide shaft 22.

FIGS. 3A and 3B are views for explaining the positional relationship among the head carriage 12, the feed screw 21 and the guide shaft 22, wherein FIG. 3A is a front view, FIG. 3B is a side view, and FIG. ) Is a plan view. As can be seen from FIG. 3, the feed screw 21 and the guide shaft 22 are located below the inserted FD 31. That is, the feed screw 21 and the guide shaft 22 have an area where the FD 31 overlaps. With such an arrangement, the length in the disk insertion direction can be relatively shortened.

FIG. 4 is a diagram for explaining a setting state when the FD is inserted into the disk drive device.
(A) is a top view which shows the state of disk out,
(B) is a side view showing a disk-out state,
(C) is a plan view showing a disc-in state,
(D) is a side view showing the disc-in state.

In FIG. 4, inside the disk drive,
That is, a latch mechanism is provided on the opposite side of the insertion opening of the FD 31, and when the FD 31 is inserted, the F
D31 is set in the disk drive.

This latch mechanism mainly comprises a latch arm 41, a latch pin 42 provided on the latch arm 41, and a cam groove 43 engaged with the latch pin 42. It is an arm that switches the movement in the direction and the movement in the vertical direction of the holder 45. Therefore, when the latch pin 42 of the latch arm 41 moves along the cam groove 43 provided in the slider 44, the horizontal movement of the latch slider 44 and the vertical movement of the holder 45 are switched.
In this structure, the fulcrum of the latch arm exists inside the silhouette of the disk drive device in the plan view.

As can be seen from FIG. 4, the above-described eject button 15 is provided so as to be located on the upper surface of the drive via a connecting member 46. This allows
There is no danger of accidentally pressing the eject button 15 when inserting a disc, and a lid for protecting the eject button is not required. Therefore, it is possible to reduce the size in the width direction of the apparatus main body only for the lid. Note that the eject button 15 also exists inside the silhouette of the disk drive device in the plan view.

FIGS. 5A and 5B are views for explaining an example of the latch mechanism in FIG. 4, wherein FIG. 5A is a view showing a state before engagement, and FIG. 5B is a view showing a state after engagement. It is. FIG.
As shown in FIG. 5A, when the latch arm 41 faces in the direction of the arrow, the latch pin 42 moves along the cam groove 43, and the state shown in FIG. Thereby, the FD 31 is set in the disk drive. As described above, since the latch pin 42 is configured to stand upright in the thickness direction, a structure in which the latch arm 41 does not protrude into the region A in FIG. 4A can be realized, contributing to space saving. be able to.

FIGS. 6A and 6B are views for explaining another example of the latch mechanism in FIG. 4, wherein FIG. 6A is a plan view showing a state before engagement, and FIG. 6B is a state before engagement. (C) is a plan view showing a state after engagement,
(D) is a perspective view showing a state after engagement. The structure shown in FIG. 6 may be used for the latch mechanism in FIG. That is, as shown in FIGS. 6A and 6B, when the latch arm 61 is pressed by the FD 31, the latch arm 61 comes into contact with the holder 62. At this time, as shown in FIGS. 6C and 6D, a latch claw 63 provided on the latch arm 61 is provided with a cam groove 65 provided on the slider 64.
The latch pawl moves along the concave portion 65 of the cam groove 65.
a.

According to the disk drive having the above configuration, as can be seen from FIG.
2. Since the stepping motor 13 and the track 00 sensor 14 are efficiently arranged, the area A and the area B in FIG.
The area can be released from the drive occupied area, and can be effectively used for mounting the device. FIG.
As shown in (a), a disk drive (hatched in the figure)
The lens 72 does not overlap the lens 71 in the camera body 70. As a result, as shown in FIG. 7B, the thickness of the camera body can be reduced by 10 mm or more. Further, a lens can be arranged in the area A or the area B corresponding to the cutout portion of the drive chassis 10. As a result, the lens can be arranged while keeping the projection area of the device (set) to which the disk drive device is mounted at a minimum, and the space can be saved.

Further, in the disk drive device having the above configuration, since the drive circuit is provided on the device (set) side on which the disk drive device is mounted, unnecessary connection is unnecessary, and the number of connections can be reduced. it can. As a result, cost merit increases. In this case, the interface has a front head output, a rear head output, a spindle motor drive, a stepping motor drive, and a track 00 sensor output.

In the structure of the disk drive device having the above structure, the drive chassis can be a frame and a device (set) mounting frame for mounting the disk drive device can be used. Can be attached. This eliminates the need for an indirect sheet metal frame or the like necessary for mounting the cavity or the substrate, thereby saving space, and at the same time, reducing the number of parts and reducing costs.

The present invention is not limited to the above embodiment, but can be implemented with various modifications. Therefore, in the present invention, any configuration may be used as long as the head carriage, the stepping motor, the track 00 sensor, and the like can be arranged efficiently. Further, in the above embodiment, the case where the lens block is arranged in the cutout portion of the drive chassis is described. However, in the present invention, the cutout portion of the drive chassis has an appropriate size other than the lens block. May be arranged.

[0027]

As described above, the disk drive device of the present invention has a disk storage portion for storing a recording medium, and a drive main body having a concave portion provided on the back side in the insertion direction of the recording medium; A first motor provided at a portion of the drive main body corresponding to the position of the recording medium; a head carriage connected to the first motor; and a head coupled to the head carriage for driving the head carriage. And the second motor is located in the concave portion, so that the thickness of the recording / reproducing apparatus to be used can be made as thin as possible.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a structure of a disk drive device according to an embodiment of the present invention, FIG. 1 (a) is a front view,
(B) is a side view.

FIGS. 2A and 2B are explanatory views showing details of a head carriage in the disk drive device shown in FIG. 1, wherein FIG. 2A is a front view of a main part, and FIG.

3A and 3B are diagrams for explaining a positional relationship among a head carriage, a feed screw, and a guide shaft, and FIG.
Is a front view, (b) is a side view, and (c) is a plan view.

FIGS. 4A and 4B are diagrams for explaining a set state when the FD is inserted into the disk drive device, wherein FIG. 4A is a plan view showing a disk-out state, and FIG. It is a side view, (c) is a top view which shows the state of disk-in, (d) is a side view which shows the state of disk-in.

5A and 5B are diagrams for explaining an example of the latch mechanism in FIG. 4; FIG. 5A is a diagram showing a state before engagement;
(B) is a diagram showing a state after engagement.

FIGS. 6A and 6B are views for explaining another example of the latch mechanism in FIG. 4, wherein FIG. 6A is a plan view showing a state before engagement, and FIG. 6B is a perspective view showing a state before engagement. FIG.
It is a top view showing the state after engagement, and (d) is a perspective view showing the state after engagement.

FIG. 7 is a diagram showing a positional relationship of a disk drive in the recording / reproducing apparatus of the present invention, wherein (a) is a front view,
(B) is a side view.

FIGS. 8A and 8B are schematic diagrams showing the structure of a conventional disk drive device, where FIG. 8A is a front view and FIG. 8B is a side view.

FIG. 9 is a diagram showing a positional relationship between disk drives in a conventional recording / reproducing apparatus, where (a) is a front view,
(B) is a side view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Drive main body, 10a ... Projection part, 11 ... Spindle motor, 12 ... Head carriage, 13 ... Stepping motor, 14 ... Track 00 sensor, 15 ... Eject button, 21 ... Feed screw, 22 ... Guide shaft, 23 ... Pressing spring , 31: FD, 41, 61: latch arm, 42: latch pin, 43, 65: cam groove, 4
4 ... Slider, 45, 62 ... Holder, 63 ... Latch claw, 65a ... Recess, 70 ... Camera body, 71 ... Lens,
72 ... Disk drive.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshio Hasegawa Sony Koda Co., Ltd.

Claims (5)

[Claims] 1. A disk drive device mounted in a recording / reproducing device, comprising: a disk housing portion for housing a recording medium; and a drive body having a concave portion provided on a back side in a direction in which the recording medium is inserted. A first motor provided in a portion of the drive main body corresponding to the position of the recording medium; a head carriage connected to the first motor; and a drive coupled to the head carriage to drive the head carriage. And a second motor for causing the second motor to be located in the concave portion. 2. The second motor includes a screw for driving the head carriage, and a tip of the screw opposite to the second motor is connected to the recording medium when the recording medium is inserted. The disk drive device according to claim 1, wherein the disk drive device is arranged to overlap. 3. The head carriage has a guide shaft for guiding the head carriage when the head carriage is driven, and the guide shaft is arranged so as to overlap the recording medium when a recording medium is inserted. 3. The disk drive device according to claim 1 or 2. 4. A drive device according to claim 1, further comprising a latch mechanism for holding the recording medium when the recording medium is inserted, wherein the latch mechanism exists within a planar outer shape of the drive main body. 3. The disk drive device according to any one of 3. 5. An apparatus according to claim 1, further comprising: an eject portion for ejecting the recording medium, wherein the eject portion exists within a planar outer shape of the drive main body.
The disk drive device according to claim 4.