JP2859371B2 - Head cleaning device in disk drive - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disk device for recording information on a disk such as an optical disk or a magnetic disk and reproducing information from the disk. More specifically, the present invention relates to a disk device. The present invention relates to an apparatus for cleaning a recording or reproducing head.

(Prior Art) An optical disk device that records and reproduces information using an optical medium (for example, a laser beam) and a magnetic disk device that records and reproduces information using a magnetic medium are used as disk devices such as still cameras.

The recording / reproducing unit of these disk devices includes a base member covered with an opening / closing lid or the like, and a rotation driving unit that mounts and rotates an optical disk or a magnetic disk (hereinafter simply referred to as a disk) on the base member. And a carriage that can move forward and backward in the radial direction of the disk mounted on the rotation drive unit.

A recording or reproducing head (hereinafter, simply referred to as a head) for reproducing information from the disk having information recorded on the disk is provided on the carriage in an exposed state, and the head is moved from the retracted position during recording or reproducing. It is configured to record and reproduce information while moving forward in the radial direction of the disk.

(Problems to be Solved by the Invention) However, in the conventional disk device, since the head is supported by the carriage in an upright and exposed state, there is a problem that dust and the like adhere and the head becomes dirty.

Therefore, conventionally, a head cleaner is mounted on a rotation drive unit, and the head is cleaned while rotating the head cleaner, or the head is manually cleaned with a commercially available head cleaning tool, and only the cleaning of the head is performed. It is troublesome because work for the purpose is required.

The present invention has been devised in view of the above circumstances, and the present invention relates to a disk device that automatically cleans a head in conjunction with a retreating operation of the head and can omit an operation only for cleaning the head. It is an object to provide a head cleaning device.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a base member, a rotation drive unit for rotating a disk provided on the base member,
A carriage disposed on a base member capable of moving forward and backward in a radial direction of a disk mounted on the rotation drive unit; and a recording or reproducing device supported by the carriage and facing a surface of the disk mounted on the rotation drive unit. A head device that supports the head so as to be able to stand up and down, and raises the head during a recording or reproducing operation, and causes the head to fall when retreating the head where no recording or reproducing operation is performed. Provide a standing and falling mechanism,
Further, a cleaning member for cleaning the head, which comes into contact with the head in the lying state, is provided.

(Operation) When the head is retracted, the head falls down and comes into contact with the cleaning roller, so that the dirt on the surface of the head facing the disk is removed.

Further, when the cleaning member is attached to the carriage, the cleaning device can be made compact.

Further, the cleaning member is formed in a cylindrical shape, and a spindle passing through the axis thereof is rotatably supported by the carriage. A gear is attached to this spindle, and when the head is retracted to the base member side, the gear meshes with the gear. When a rack for rotating the cleaning member is provided, the portion of the cleaning roller with which the head comes into contact can be constantly changed, which is advantageous for cleaning the head.

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

FIG. 1 is a perspective view of the disk device in a state where the head is retracted, FIG. 2 is a perspective view of the head portion during a recording or reproducing operation, and FIG. 3 is a perspective view of the head portion when retracting.

1 is a disk device, 2 is a base member of a recording unit or a reproducing unit, and this base member 2 is provided with a spindle motor 3 and a carriage 4.

The spindle motor 3 has a chucking unit 5,
The disk is mounted on the chucking unit 5 by magnetic attraction, and the motor 3 rotates the disk together with the chucking unit 5.

An opening / closing lid (not shown) for loading / unloading the disc is opened on the base member 2 to mount and take out the disc, and the spindle motor 3 and the chucking unit 5 constitute a rotation drive unit.

The carriage 4 is provided with a head 6. The carriage 4 has one end coupled to the guide bar 7 and the other end coupled to the lead screw 8 so that the carriage 4 can move in the radial direction of the disc mounted on the chucking portion 5. ing.

The guide bar 7 is inserted into the hole 9 of the carriage 4,
Both ends are supported by an end wall 2A and a block 2B on the base member 2 side.

A male screw 10 is formed on the peripheral surface of the lead screw 8, and the male screw 10 is screwed into a female screw 11 on the carriage 4 side, and the carriage 4 is rotated by rotation of the lead screw 8 by a control means (not shown) and a motor (not shown). Guided by the guide bar 7, the disc advances and retreats in the radial direction, and the recording or reproducing operation is performed by the head 6. When the recording or reproducing operation is not performed, the carriage 4 is moved to the radially outermost retracted position. Be moved.

The head 6 is, as shown in FIGS.
, And the support plate 12 is fixed to the pivot 13.

The part of the support plate 12 opposite to the place where the head 6 is fixed is
It is formed on the inclined portion 12a.

The pivot 13 is rotatably supported at both ends by the carriage 4. Therefore, the head 6 is disposed so as to be able to stand up and down around the pivot 13. When the head 6 falls, the head 6 is placed in the storage space on the upper surface of the carriage 4. Located within 4a.

The pivot 13 is urged by a spring 14 in the direction of arrow F in FIGS. 2 and 3, so that the support plate 12 contacts the contact portion 4b of the carriage 4 and the head 6 moves upward during recording or reproducing operation. It is held in an upright position facing.

Reference numeral 15 denotes a cleaning roller.
As shown in FIG. 5 and FIG. 5, the head 6 is disposed in the storage space 4a so as to come into contact with the tip of the head 6 when the head 6 is lying down.

The support shaft 16 of the cleaning roller 15 is rotatably supported by the carriage 4, and a gear 17 is attached to the support shaft 16 alongside the cleaning roller 15.

On the other hand, an engagement piece 18 is fixed to two base members where the carriage 4 is retracted.

The engagement piece 18 includes a base 18a extending in the moving direction of the carriage 4 and an engagement portion 18 bent upward from the tip of the base 18a.
b.

At the base 18a of the engagement piece 18, a rack 19 that engages with the gear 17 at or near the retracted position of the head 5 is attached.

On the lower surface of the carriage 4, a notch 4c through which the engaging portion 18b and the rack 19 pass is provided as shown in FIG.

In this embodiment, the erecting and falling mechanism of the head 6 is provided by a support plate.
12, a pivot 13, a spring 14, a contact portion 4b, an engagement portion 18b, and the like.

Since the present embodiment is configured as described above, the carriage 4 advances when the head 6 records or reproduces,
The support plate 12 comes into contact with the contact portion 4b by the urging of 14, and the standing state of the head 6 as shown in FIGS. 2 and 4 is maintained.

On the other hand, when the carriage 4 moves to the evacuation operation and moves in the direction of arrow A in FIG. 4, first, the engagement portion 18b of the engagement piece 18 comes into contact with the inclined portion 12a of the support plate 12 just before the evacuation position. Then, the support plate 12 starts swinging about the pivot 13, and the head 6 is brought to a down state at or near the retreat position, and is stored in the storage space 4a.

When the head 6 falls down, the tip of the head 6 comes into contact with the cleaning roller 15 as shown in FIG. 5, and the cleaning roller 15 removes dirt.

Furthermore, in the embodiment, since the gear 17 meshes with the rack 19 and the cleaning roller 15 rotates, the portion of the cleaning roller 15 with which the head 6 comes into contact can be constantly changed, which is advantageous for cleaning the head 6.

In the embodiment, the case where the rotatable cleaning roller 15 is used as the cleaning member has been described. However, the cleaning member does not have to rotate, and the shape is not limited to the roller shape, and may be, for example, a rectangular parallelepiped shape. Etc. are optional.

Further, in the embodiment, the case where the cleaning member is provided on the carriage 4 has been described, but the location where the cleaning member is provided, such as provided on the base member 2 side, is arbitrary.

Further, the structure of the standing and falling mechanism is not limited to the structure of the embodiment, and may be arbitrarily set, for example, by using a link mechanism or using a cam mechanism.

The head 6 can be applied to a recording head, a reproducing head, or a recording / reproducing head irrespective of an optical type or a magnetic type.

(Effect of the Invention) As described above, according to the head cleaning device in the disk device of the present invention, the head falls down and comes into contact with the cleaning member when the head is retracted, so that the head is automatically interlocked with the retracting operation of the head. The head is cleaned, and it is possible to omit an operation only for cleaning the head.

[Brief description of the drawings]

FIG. 1 is a perspective view of the disk device with the head retracted, FIG. 2 is a perspective view of the head portion during recording or reproducing operation, FIG. 3 is a perspective view of the head portion during retracting, and FIG. FIG. 5 is a side view showing the relationship between the head and the engaging piece in the state, and FIG. 5 is a side view showing the relationship between the head and the engaging piece in the lying state. In the drawing, 1 is a disk device, 3 is a motor, 4 is a carriage, 6 is a head, 12 is a support plate, 15 is a cleaning roller, 17 is a gear, 18 is an engagement piece, 18a is an engagement portion, and 19 is a rack. It is.

Claims (3)

(57) [Claims] 1. A base member, a rotation drive unit provided on the base member for rotating a disk, and a carriage disposed on the base member so as to be able to advance and retreat in a radial direction of a disk mounted on the rotation drive unit. A recording / reproducing head which is supported by the carriage and faces a surface of a disk mounted on the rotary drive unit. A disk device comprising: A head-erecting mechanism for elevating the head at the time of evacuation of the head where no recording or reproducing operation is performed, and a cleaning member for cleaning the head which comes into contact with the head in the erect state. A head cleaning device in a disk device. 2. A head cleaning apparatus according to claim 1, wherein said cleaning member is mounted on a carriage. 3. The cleaning member has a cylindrical shape, and a spindle passing through the axis thereof is rotatably supported by a carriage. A gear is attached to the spindle, and the base member side has a gear when the head is retracted. 2. The head cleaning device according to claim 1, further comprising a rack that meshes with the gear and rotates the cleaning member.