JPH0855448A - Disk drive device - Google Patents

Abstract

PURPOSE:To surely prevent a recording medium from colliding against a head device by bringing a holder member into a 1st position by energizing force of an energizing member when no recording medium is inserted into the holder member. CONSTITUTION:When a disk cartridge 120 (121) is inserted into a cartridge holder 19, a slider 41 is pressed via a abutting piece 55 and is moved to the backward side, and a slide plate 32 is held at a 2nd position against energizing force of an extension coil spring 42. Consequently, at this time, a magnetic head 31 can enter the cartridge 19 without obstruction of the slide plate 32. Then, by positioning the cartridge holder 19 at a loading position, the disk cartridge 120 (121) is mounted on a chassis 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc drive device which constitutes a recording and reproducing device for recording and reproducing information signals using a recording medium such as a disc cartridge.

[0002]

2. Description of the Related Art Conventionally, a disc cartridge, which is constructed by accommodating a recording disc such as an optical disc, a magnetic disc, or a magneto-optical disc in a cartridge, is used as a recording medium to record and reproduce information signals. Recording and reproducing devices have been proposed.

A recording / reproducing apparatus using a disk cartridge constructed by accommodating a magneto-optical disk in the cartridge as the recording medium comprises a recording / reproducing section having an optical pickup device and a magnetic head device. . The recording / reproducing unit is arranged on the chassis of the recording / reproducing apparatus. The optical pickup device is supported by the chassis and is arranged upward. The magnetic head device is attached via a gimbal spring (limiter spring) to the tip end side of a head arm whose base end side is supported by the optical pickup device, and faces the objective lens of the optical pickup device and faces downward. Are arranged.

The recording / reproducing apparatus is provided with a cartridge holder as a holder member for holding the disc cartridge and mounting the disc cartridge in the recording / reproducing section.

The cartridge holder is formed in a thin casing into which the disc cartridge can be inserted from the front side to hold the disc cartridge, and the rear end side is rotatably supported by the chassis. The cartridge holder is arranged between the optical pickup device and the magnetic head device. When the cartridge holder is in the unloading position, which is separated from the chassis above, the cartridge holder is used for inserting and removing the disc cartridge. Then, when the cartridge holder is at the loading position close to the chassis while holding the disc cartridge, the disc holder is mounted on the recording / reproducing unit.

In this recording / reproducing apparatus, an upper lid is provided on the cartridge holder and the head arm. The upper lid is formed into a substantially housing shape whose lower side is opened so as to cover the cartridge holder and the head arm, and the rear end side is rotatably supported. When the upper lid is rotated upward to be separated from the chassis and opened, the cartridge holder is lifted and rotated to be in the unloading position.

In the recording / reproducing section, when the cartridge holder is at the loading position, the head device is inserted into the cartridge holder from above through a through hole formed in the cartridge holder. , Is close to the recording disk constituting the disk cartridge. Then, this head device, when the cartridge holder is set to the unloading position and when a disc cartridge configured only for reproduction is inserted into the cartridge holder,
By rotating the head arm upward, the head arm is retracted upward from the inside of the cartridge holder.

[0008]

By the way, in the recording and reproducing apparatus as described above, when the upper lid is opened and the cartridge holder is in the unloading position, and a disc dedicated to reproduction is used. When the cartridge is inserted into the cartridge holder, the magnetic head device is located between the cartridge holder and the upper lid so as not to collide with the disc cartridge inserted into the cartridge holder.

However, at this time, when the cartridge holder or the upper lid is rotated by an external force and the cartridge holder and the upper lid are brought close to each other, the magnetic head device is inserted into the cartridge holder. There is fear. When the disc cartridge is inserted into the cartridge holder in such a state, the disc cartridge may collide with the magnetic head device and the magnetic head device may be damaged. Such rotation of the cartridge holder is
When the disc cartridge is inserted into the cartridge holder, it may be caused by friction between the cartridge holder and the disc cartridge.

Further, in this recording / reproducing apparatus,
When the disk cartridge is not inserted in the cartridge holder and vibration or shock is transmitted from the outside, the gimbal spring supporting the magnetic head device vibrates or excessively displaces, causing plastic deformation or damage. May occur.

Therefore, the present invention is proposed in view of the above situation, and in a recording and reproducing apparatus, it is possible to reliably prevent a recording medium inserted into a holder member from colliding with a head apparatus. An object of the present invention is to provide a disk drive device capable of protecting a gimbal spring supporting the head device from vibration and impact.

[0012]

In order to solve the above-mentioned problems and achieve the above-mentioned object, a disk drive device according to the present invention has a holder member into which a recording medium is inserted and holds the recording medium, and this holder member. And a head device supported by a gimbal spring arranged near the holder member so as to be able to come into contact with and separate from the recording medium held by the holder member, and movably arranged on the holder member to displace the gimbal spring. At the same time, a head operating member that can be moved between a first position that prevents the head device from entering the holder member and a second position that allows the head device to enter the holder member. And a biasing member that biases the head operating member in the direction toward the first position, and a head operating member that is brought into contact with a recording medium provided in the head operating member and inserted into the holder member. An abutting member for moving the material to the second position, wherein the head operating member moves from the first position to the second position in response to an insertion operation of the recording medium into the holder member. While being moved, the recording medium is pressed and biased toward the outside of the holder member by the biasing force of the biasing member.

[0013]

In the disk drive device according to the present invention, a recording medium is inserted and movably arranged on a holder member for holding the recording medium, and the head device is prevented from entering the holder member. And a second position enabling the head device to enter the holder member, the head operating member is operable to move when the recording medium is not inserted into the holder member. The head device is held at the first position by the urging force of the urging member, and the recording medium inserted into the holder member is surely prevented from colliding with the head device.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

In this example, the disk drive device according to the present invention is used for recording and reproducing information signals using a recording / reproducing disk cartridge constituted by accommodating a magneto-optical disk as a recording medium, and an optical disk. This is an example applied to the configuration of a recording and reproducing apparatus for reproducing an information signal using a reproduction-only disc cartridge configured by housing a disk as a recording medium.

[1] Construction of Disc Cartridge The magneto-optical disc used in this recording and reproducing apparatus has a diameter of, for example, about 64 mm or a transparent synthetic resin material such as polycarbonate or acrylic having a diameter larger than this, or A disc-shaped disk substrate made of a glass material is coated with a signal recording layer made of a magnetic material. This signal recording layer is locally heated to a temperature higher than the so-called Curie temperature by means such as irradiation of a focused laser beam, and an external magnetic field is applied to this heated portion to write an information signal. It
The information signal thus written irradiates the signal recording layer with a linearly polarized light beam such as a laser beam, and detects the rotation angle of the polarization direction of the reflected light beam of the light beam due to the so-called Kerr effect in the signal recording layer. Can be read.

The optical disc is constructed by depositing a reflective layer made of a metal material such as aluminum on a disc substrate similar to the disc substrate of the magneto-optical disc. On the disc substrate of this optical disc, fine pit rows corresponding to the information signals are formed by means such as injection molding. The information signal written on the optical disc irradiates the pit train with a coherent light beam such as a laser beam, and detects the amount of change in the light amount of the reflected light beam of the light beam due to diffusion or interference in the signal recording layer. Therefore, it can be read.

In the central portion of the magneto-optical disc or the recording disc, which is the optical disc, shown in FIGS.
As shown in FIG. 1, a circular chucking through hole 104 is formed. Then, a disk-shaped chucking plate 102 having a diameter substantially corresponding to the chucking through hole 104 is attached to the recording disk so as to close the chucking through hole 104 from the upper side. ing. The chucking plate 102 is formed of a magnetic metal material such as iron or stainless steel.

The recording disc is a truncated cone shape formed on the upper surface of a disc table that is rotated in a recording / reproducing device such as a disc player device for recording or reproducing information signals on or from the recording disc. With the projections, the positioning in the direction along the main surface portion of the disk substrate, that is, centering is performed with reference to the chucking through hole 104. Further, the recording disc is attracted to the chucking plate 102 by a magnet built in the disc table and held on the disc table. At this time, the peripheral portion of the protruding portion of the disc table abuts and supports the peripheral portion of the chucking through hole 104 of the recording disc, and the vertical direction, that is, the height, of the main surface portion of the disc substrate. Position the position.

Then, as shown in FIGS. 8 and 9, the magneto-optical disk is rotatably housed in a cartridge 105 to form a disk cartridge 120 for recording / reproducing information signals. In addition, the above optical disc is shown in FIG.
As shown in FIGS. 0 and 11, the disk cartridge 121 is rotatably housed in the cartridge 116 and is exclusively used for reproducing the information signal.

The above-described cartridge 105 which houses the magneto-optical disk and constitutes the disk cartridge 120 for both recording and reproduction uses the upper half and the lower half in abutting engagement with each other, so that the length of one side is the diameter of the magneto-optical disk. Is formed in a thin casing shape having a rectangular main surface portion substantially corresponding to. As shown in FIG. 8, the cartridge 105 has a magnetic head opening 123 on the main surface on the upper surface side for exposing a part of the signal recording surface of the magneto-optical disk to the outside. This magnetic head opening 1
23 is formed in a rectangular shape from the substantially central portion of the main surface portion of the upper half to the vicinity of one side edge portion of the main surface portion. The cartridge 105 has an optical pickup opening 122 at a position facing the magnetic head opening 123 on the main surface on the lower surface side, and chucking is provided at a substantially central portion of the main surface on the lower surface side. It has an opening 113. The chucking opening 113 exposes the chucking through hole 104 and the chucking plate 102 to the outside. The disk cartridge 120 for both recording and reproduction is inserted and mounted in the front direction of the recording and reproduction apparatus as shown by an arrow E in FIGS. 8 and 9.

In the cartridge 105 of the recording / reproducing disk cartridge 120, the magnetic head opening 123 and the optical pickup opening 12 are provided.
The shutter 2 can be opened and closed by the shutter member 106. The shutter member 106 has the openings 12
3, 122 having upper and lower lid plate portions corresponding to each other in parallel and facing each other, and a supported plate portion connecting one end sides of these lid plate portions to each other. , Are integrally configured. The shutter member 106 slidably supports the supported plate portion along a guide groove portion 107 formed in one side portion of the cartridge 105 in the front-rear direction.

The shutter member 106 slides rearward along one side edge of the cartridge 105 to open the openings 123 and 122, and slides forward from the rear side to the initial position. When returned, the opening portions 123 and 122 are closed by the lid plate portions.
In addition, in the upper and lower main surface portions of the cartridge 105,
A recess having a depth corresponding to the thickness of each lid plate portion is formed in a region where each lid plate portion moves. Therefore, each of the lid plate portions is located in the recessed portion so as to be flush with the main surface portion of the cartridge 105. Further, a label sticking area 115 is formed on the upper main surface portion of the cartridge 105 in addition to the area where the recess is formed. This label area 1
Reference numeral 15 has a depth corresponding to the thickness of the label to be attached and is formed as a recess having a shape corresponding to the shape of the label.

The cartridge 116, which constitutes the read-only disc cartridge 121 for accommodating the optical disc, has the upper half and the lower half butted and joined together, so that the length of one side is equal to the diameter of the magneto-optical disc. It is configured in a thin casing shape having substantially rectangular corresponding main surface portions. The cartridge 116 has an optical pickup opening 122 for exposing a part of the signal recording surface of the optical disk to the outside on the main surface on the lower surface side. The optical pickup opening 122 is formed in a rectangular shape from the substantially central portion of the main surface portion of the lower half to the vicinity of one side edge portion of the main surface portion. Further, the cartridge 105 has a chucking opening 113 at a substantially central portion of the main surface portion on the lower surface side.
The chucking opening 113 exposes the chucking through hole 104 and the chucking plate 102 to the outside. This read-only disc cartridge 121 is inserted and mounted in the front direction in the recording / reproducing apparatus as shown by an arrow E in FIGS. 10 and 11.

The reproduction-only disc cartridge 12
In the first cartridge 116, the optical pickup opening 122 can be opened and closed by a shutter member 117. This shutter member 117 is
It has a lower lid plate corresponding to the opening 122 and a supported plate portion continuously provided on one end side of the lower lid plate portion, and is integrally configured by a thin metal plate material. . The shutter member 117 slidably supports the supported plate portion along a guide groove portion 107 formed in one side portion of the cartridge 116 in the front-rear direction.

The shutter member 117 slides rearward along one side edge of the cartridge 105 to open the optical pickup opening 122, and slides forward from the rear side to the initial position. When returned, the optical pickup opening 122 is closed by the lower lid plate. In the lower main surface portion of the cartridge 116, a recess having a depth corresponding to the thickness of the lower lid plate portion is formed in a region where the lower lid plate portion moves. Therefore, the lower lid plate portion is located in the concave portion so as to be flush with the lower main surface portion of the cartridge 116. Also,
A label sticking area 119 is formed over the substantially entire upper surface of the cartridge 116. The label sticking region 119 is formed as a concave portion having a depth corresponding to the thickness of the stuck label and having a shape corresponding to the shape of the label.

The shutter members 106 and 117 are provided with
A lid operating hole 108 is formed at a substantially central position of the supported plate portion toward the side. This lid operation hole 10
Reference numeral 8 denotes each shutter member 1 in the recording / reproducing apparatus.
It is a through hole into which a shutter closing claw for closing the 06 and 117 is fitted and engaged.

The guide groove portion 107 is formed so as to extend to the front end surface portions of the cartridges 105 and 117, and is open to the front end surface portions.

In the cartridges 105 and 116,
A lock member is arranged at one side portion on the front side. The lock member has a support shaft portion, a support arm portion and a lock arm portion formed to project from the support shaft portion, and is integrally formed of a synthetic resin material. In this lock member, the support shaft is attached to the cartridge 105, 1
It is arranged so as to be fitted into a fitting concave portion in 16. The lock member locks the lock arm portion in a state in which the support arm portion is brought into contact with a wall portion projecting in the cartridges 105 and 116 to prevent rotation around the support shaft portion. The inside of the guide groove 107 is exposed from the inside.
The lock arm portion is elastically biased outward by the elastic force of the lock member.

The lock arm is provided with the shutter member 10
When the shutters 6 and 117 are in the closed position which is the position to close the openings 123 and 122, the shutter member 10
The shutter members 106 and 117 are engaged with the shutter members 106 and 117.
Are prevented from moving to the rear side, that is, in the direction in which the openings 123 and 122 are opened.

When the lock arm portion is displaced inwardly against the elastic force of the lock member, the engagement of the shutter member 106, 117 with the first guide claw is released, The shutter members 106 and 117 can be moved to the rear side.

When the shutter members 106 and 117 are moved to the front side from the rear open position and reach the closed position, the lock arm portion is moved by the elastic force of the lock member to cause the shutter member 106 to move. , 117.

Then, each of the cartridges 105 and 11
A pair of front side and rear side positioning holes 109, 110 are formed in the lower main surface portion of 6. The front-side positioning hole 109 has the opening 122 for the optical pickup.
Is located in the vicinity of the edge of the main surface portion on the front side, and is formed in an oval shape with the major axis direction being the front-rear direction. Also,
The rear side positioning hole 110 is located in the vicinity of an edge of the rear side main surface of the optical pickup opening 122, and is formed in a circular shape.

Further, each of the above-mentioned cartridges 105 and 116
A plurality of identification holes 124 are formed in the vicinity of the edge on the other side of the lower main surface portion rear side. These identification holes 124
Is for identifying the type and state of the recording disks housed in the cartridges 105 and 116, for example, whether or not information signals can be recorded.

The identification hole 12 is provided in the cartridge 105 of the recording / reproducing disk cartridge 120.
Corresponding to item 4, the save notch is provided. The save notch is exposed to the outside on the rear side through an operation hole 114 formed in the rear surface of the cartridge 105. This save notch moves and retreats with respect to the inner position of one of the identification holes 124 by being moved and operated through the operation hole 114, and changes the depth of the identification hole 124, The identification state of whether or not the information signal can be recorded is switched. Further, a pair of engaging recesses 1 are formed at the edges on both sides of the front side of the lower main surface of each of the cartridges 105 and 116.
12, 112 are formed.

In the cartridge 105 of the disk cartridge 120 for both recording and reproduction, a magneto-optical disk identifying recess 111 is formed at the front side edge of the lower main surface. Further, in the cartridge 116 of the disc cartridge 121 for reproduction only, an optical disc identification recess 118 is formed at the front side edge of the lower main surface portion. The magneto-optical disc identifying recess 111 and the optical disc identifying recess 118 are different from each other in depth from the lower main surface portion. Due to the difference in depth, the stored recording disc is the magneto-optical disc or the optical disc. It is designed so that it can be identified.

[2] Outline of Configuration of Recording and Reproducing Apparatus As shown in FIG. 1, the recording and reproducing apparatus has an outer casing body 1
And an outer casing composed of the upper lid 2. The outer casing body 1 is configured such that the upper surface side is open, and the upper surface side can be opened and closed by the upper lid 2. The upper lid 2 is rotatably supported at the rear end side with respect to the rear end side of the outer casing body 1 via an upper lid support shaft 3. As shown by an arrow A in FIG. 1, the upper lid 2 is pivoted upward about the upper lid support shaft 3 to open the upper surface side of the outer casing body 1. The upper lid 2 is hooked to the outer casing body 1 in a closed state by a hooking member, and the hook release knob 9 provided on the outer casing body 1 is operated to lock the upper lid 2. The latching by the member is released.

In this recording / reproducing apparatus, the magneto-optical disc is obtained by opening the upper lid 2 and mounting the disc cartridge 120 for both recording and reproduction or the disc cartridge 121 for reproduction only in the outer casing. It is possible to record or reproduce an information signal to or from the optical disc and reproduce an information signal from the optical disc.

On the outer surface of the outer casing, a plurality of operation buttons for instructing the recording and reproducing apparatus to execute various operation modes are arranged. That is, a play button 4, a stop button 5, a forward track jump button 6, a reverse track jump button 7, and a record button 8 are provided on the outer surface of the outer housing, and these buttons are provided inside the outer housing. It is connected to a control circuit which is provided and controls the operation of the recording and reproducing apparatus. Further, on the outer surface of the outer casing, a plurality of connection jacks 10, 12, 13, 14 connected to the control circuit or the signal processing circuit arranged in the outer casing.
Is provided. These connection jacks are used for outputting information signals, inputting information signals, and inputting remote control signals. Further, a display device 11 which is connected to the control circuit and displays various information by characters or figures is arranged on the upper surface of the upper lid 2.

Further, the outer casing is provided with a battery chamber 15 for accommodating a battery for supplying drive power to the recording and reproducing apparatus.

[3] Structure of Recording and Reproducing Apparatus In the outer casing body 1, as shown in FIGS. 2, 3, 5 to 7, a substantially flat chassis 16 is fixedly arranged. Has been done. On the chassis 16, a disc table 25 for positioning and holding the disc cartridges 120, 121 and cartridge positioning pins 17, 18 are arranged.

The disk table 25 is a spindle motor 24 mounted on the lower surface of the chassis 16.
It is attached to the drive shaft of. The drive shaft is attached to the chassis 1 through a through hole provided in the chassis 16.
6 is projected to the upper surface side.

The disk table 25 is formed in a substantially disc shape, and the cartridge 1 is inserted through the chucking openings 113 of the cartridges 105 and 116.
It is designed to be able to enter into 05 and 116. The disc table 25 has, on its upper surface portion, a protrusion that fits into the chucking hole 104 and a magnet that attracts the chucking plate 102.

The disc table 25 is inserted into the cartridge 10 through the chucking opening 113.
When it enters the inside of 5,116, the peripheral part of the chucking hole 104 is placed near the outer peripheral edge part, and the projection part is fitted into the chucking hole 104.
The chucking plate 102 by the magnet
By suctioning, the magneto-optical disc or the optical disc can be positioned and held.

The magneto-optical disk or the optical disk held by the disk table 25 as described above is rotated by the spindle motor 24.

The cartridge positioning pins 17, 18
Is provided on the chassis 16 in a protruding manner, and the recording / reproducing disc cartridge 1 is mounted on the chassis 16.
20 or the reproduction-only disc cartridge 121
When the cartridges 105 and 116 are placed, the cartridges 105 and 116 are fitted into the front and rear positioning holes 109 and 110, respectively, and the cartridges 105 and 116 are positioned.

An optical pickup device 21 is disposed on the lower surface side of the chassis 16. The optical pickup device 21 has a light source such as a laser diode, various optical devices for guiding a light flux emitted from the light source, and a light receiving element, and irradiates the magneto-optical disc and the optical disc with a light flux through an objective lens, Information signals can be read from the magneto-optical disc and the optical disc.

The optical pickup device 21 is movably supported along the guide shafts 22 and 23 by a pair of guide shafts 22 and 23 which are arranged parallel to each other on the lower surface side of the chassis 16. There is. By moving the optical pickup device 21 along the guide shafts 22 and 23, the information signals can be read from the entire signal recording area of the magneto-optical disk and the optical disk rotated by the spindle motor 24. It can be done.

A magnetic head device 31, which is a head device, is attached to the optical pickup device 21 via a connecting arm 26 and a head arm 28. The connecting arm 26 is attached to the optical pickup device 21 at the base end side, and extends at the front end side rearward of the rear end edge of the chassis 16. This connecting arm 26
The front end side of is bent upward. A base end side of the head arm 28 is attached to a tip end portion of the connecting arm 26 via a leaf spring 27 so as to be swingable in a thickness direction of the leaf spring 27.

As shown in FIG. 4, the magnetic head device 31 is attached to the front end side of the head arm 28 via the gimbal spring 30 so as to face downward, and the objective lens of the optical pickup device 21. Is facing. The magnetic head device 31 includes the head arm 28.
Is oscillated by the displacement of the leaf spring 27, so that it is moved in the direction of contact with and away from the objective lens. The gimbal spring 30 is a thin leaf spring, and is displaced in the thickness direction to allow the magnetic head device 31 to move.
It is possible to move up and down. In addition, a stopper arm 29 is integrally connected to the tip end side of the head arm 28 and extends to the front end side. The tip end side of the stopper arm 29 is bent to a position above the gimbal spring 30 to form a hook 39. And
A hook holding member 33 attached to the top surface of the gimbal spring 30 on the tip side is hooked on the hook 39. The latch holding member 33 is a thin thread-like member having a weak elastic force, and both ends thereof are fixed to the gimbal spring 30. That is, the latch holding member 33 has a weaker elastic force than the gimbal spring 30 and can be displaced, and the central portion thereof can extend above the gimbal spring 30. The central portion of the latch holding member 33 is latched to the latch portion 39.

The gimbal spring 30 has a cutout portion 63 for preventing the hook portion 39 from coming into contact with the gimbal spring 30 and a through hole portion 64 for adjusting the elastic force of the gimbal spring 30. It is provided.

A cartridge holder 19 serving as a holder member is disposed on the chassis 16 and interposed between the optical pickup device 21 and the magnetic head device 31. That is, the head arm 28 is located between the upper lid 2 and the cartridge holder 19. The cartridge holder 19 is formed in a thin casing shape into which the disk cartridge 120 for both recording and reproduction and the disk cartridge 121 for reproduction only can be inserted from the front side which is opened.

The rear end side of the cartridge holder 19 is rotatably supported by a supporting piece portion provided on the rear side of the chassis 16 via a cartridge holder support shaft 20. This cartridge holder 19 is
As shown in FIG. 6, the unloading position, which is a position rotated upward from the chassis 16, separates the disk cartridges 120 and 121 from the front side and moves them forward. The disc cartridges 120 and 121 can be taken out.

The disk cartridge 12 from the front side
The cartridge holder 19 in which 0 and 121 are inserted holds the inserted disk cartridges 120 and 121. The disc cartridges 120 and 121 are inserted into the cartridge holder 19 to open the shutter members 106 and 117.

The cartridge holder 19 is
A through hole 34 for allowing the head device 31 to enter is formed in one side portion of the upper surface portion, and the disk table 25 and the cartridge positioning pins 17, 18 enter the lower surface side and the optical device The pickup device 21 uses the disk cartridges 120 and 121 described above.
An opening is formed to face the.

The cartridge holder 19 holds the disc cartridges 120 and 121. When the cartridge holder 19 is moved to the loading position, which is a position rotated downward, close to the chassis 16, the cartridge holder 19 holds the disc cartridges 120 and 121. 120 and 121 are the positioning pins 1 described above.
7, 18 and the disk table 25 are mounted.
That is, the disc cartridge 1 held by the cartridge holder 19 set to the loading position described above.
The cartridges 20 and 121 have the cartridges 105 and 116 positioned by the cartridge positioning pins 17 and 18, and the magneto-optical disk or the optical disk positioned and held by the disk table 25.

The lower surface of the upper lid 2 is provided with a hook-shaped projecting piece (not shown) located on the front side for lifting the cartridge holder 19 upward. An engaging piece (not shown) is provided on the front side of one side of the cartridge holder 19 in correspondence with the hook-shaped protruding piece. When the cartridge holder 19 is at the loading position and the upper lid 2 is at the closing position for closing the upper surface portion of the housing body 1, the tip end side portion of the hook-shaped projecting piece is the engaging piece. On the lower side, that is, on the side of the chassis 16 with a predetermined distance from the engaging projection. When the upper lid 2 is rotated upward, first, the tip end side portion of the hook-shaped protruding piece comes into contact with the lower surface portion of the engaging piece. At this time, the cartridge holder 19 is still in the loading position.
Then, when the upper lid 2 is further rotated upward,
In the cartridge holder 19, the engaging piece is suspended by the hook-shaped protruding piece and is rotated upward to the unloading position as shown by an arrow B in FIG. At this time, the upper lid 2 and the cartridge holder 1
A wider space is formed between the upper cover 2 and the upper cover 9 than when the upper cover 2 is in the closed position. In this way, the gap formed between the upper lid 2 and the cartridge holder 19 when the tip end side portion of the hook-shaped projection and the engaging piece come into contact with each other is such that the cartridge holder 19 is located above the loading position. It is maintained at a constant distance when rotated to the unloading position.

When the upper lid 2 in the open position is rotated downward, first, the cartridge holder 19 is rotated to the loading position, and then the tip end side portion of the hook-shaped projection and the engaging piece. Are separated from each other, and the upper lid 2 is brought to the closed position.

A slider 41 is attached to the other side portion of the upper surface of the cartridge holder 19. The slider 41 corresponds to the cartridge holder 1
9, a pair of front and rear support pins 45, 4 projecting from one side surface
By inserting 6 in correspondence with a pair of front and rear elongated holes, it is slidably supported in the front and rear direction.

The slider 41 has a spring retaining piece 44, and the spring retaining piece 44 and the cartridge holder 19 are provided.
As shown by an arrow F in FIG. 2, the tension coil spring 42, which is a biasing member stretched between the spring retaining pin 43 and the spring retaining pin 43, is biased to the front side.

On the slider 41, a slide plate 32 serving as a head operating member is integrally formed so as to project toward the side of the through hole 34. The slide plate 32 is a first cover that closes the through hole 34 by sliding the slider 41 with respect to the cartridge holder 19.
Is moved in the front-rear direction between a position (1) and a second position that is moved rearward of the first position and that opens the through hole 34.

The slide plate 32 is urged by the urging force of the tension coil spring 42 toward the front side, which is the first position.

A through hole 54 is provided at the rear position of the cartridge holder 19. This through hole 5
An abutting piece portion 55, which is an abutting member integrally projecting downward from the slider 41, is inserted through 4. That is, the contact piece portion 55 is inserted into the cartridge holder 19 through the through hole 54. The abutting piece 55 is used for the cartridge holder 19
When the disc cartridges 120 and 121 are inserted into the
Is brought into contact with the front end portion of the sheet and is pushed backward as shown by an arrow D in FIG.

In the recording and reproducing apparatus having the disk drive device according to the present invention as described above, in the initial state, as shown in FIG. 2 and FIG.
The cartridge holder 19 is in the loading position, the slider 41 is in the front position, and the slide plate 32 is in the first position. At this time, the magnetic head device 31 includes the slide plate 32.
It is placed and supported on top. Gimbal spring 30
By means of the slide plate 32.
Of the magnetic head device 31 is displaced upward so that the distance in the height direction of the magnetic head device 31 from the head arm 28 is shortened. At this time, the magnetic head device 31 is blocked by the slide plate 32 and does not enter the cartridge holder 19.

When the cartridge holder is at the unloading position, as shown in FIG.
The insertion operation of 121 becomes possible.

The disc cartridges 120 and 121
Is inserted into the cartridge holder 19, the slider 41 moves the contact piece 5 as shown in FIGS. 3 and 7.
The slide plate 32 is pressed through 5 and moved to the rear side, and the slide plate 32 is held at the second position against the biasing force of the tension coil spring 42.

Therefore, at this time, the magnetic head device 31 is not disturbed by the slide plate 32,
It is possible to enter the cartridge holder 19.

By setting the cartridge holder 19 to the loading position, the disk cartridges 120 and 121 are moved to the loading position as shown in FIG.
It is mounted on the chassis 16.

The magnetic head device 31 has the through hole 34.
Since the lid is opened, it enters the cartridge holder 19 through the through hole 34. At this time, the gimbal spring 30 is displaced downward while displacing the engagement holding member 33 in the vertical direction.

The magnetic head device 31 is brought into sliding contact with the magneto-optical disk of the disk cartridge 120 for both recording and reproduction. That is, the recording / reproducing disk cartridge 12 mounted on the chassis 16
At 0, the objective lens of the optical pickup device 21 is opposed to the lower surface of the magneto-optical disk, and the magnetic head device 31 is slidably contacted with the upper surface of the magneto-optical disk. In the reproducing apparatus, the disk cartridge 1 for both recording and reproducing is also provided.
By mounting 20 on the chassis 16, it is possible to record and reproduce information signals with respect to the magneto-optical disk of the disk cartridge 120 for both recording and reproduction.

The read-only disc cartridge 121 is mounted on the chassis 16 so that the objective lens of the optical pickup device 21 faces the optical disc. In this recording / reproducing apparatus, the reproduction-only disc cartridge 121 is mounted on the chassis 16 in this way to reproduce the information signal from the optical disc of the reproduction-only disc cartridge 121. be able to.

The disk cartridges 120 and 121
6 is mounted on the chassis 16 as shown in FIG.
As shown in FIG. 7, when the cartridge holder 19 is rotated to the unloading position, the disc cartridges 120 and 121 can be taken out from the cartridge holder 19.

The slider 41 is moved by the urging force of the tension coil spring 42 via the contact piece 55.
The disc cartridges 120 and 121 are pressed forward and the disc cartridges 120 and 121 are ejected from the cartridge holder 19. The slide plate 32 is attached to the disc cartridge 120, 1
When 21 is pulled out from the cartridge holder 19, it is returned to the first position.

The disk cartridge 120,
When the cartridge 121 is pulled out from the cartridge holder 19, the shutter members 106 and 117 are closed.

[0075]

As described above, in the disk drive device according to the present invention, a recording medium is inserted and is movably arranged on a holder member for holding the recording medium, and the head device is placed in the holder member. A head operating member that is movable between a first position that prevents the head device from entering and a second position that allows the head device to enter the holder member. When the insertion operation is not performed, it is set to the first position by the biasing force of the biasing member, holds the head device, and ensures that the recording medium inserted in the holder member collides with the head device. Prevent. That is, according to the present invention, in the recording and reproducing apparatus, it is possible to surely prevent the recording medium inserted into the holder member from colliding with the head device, and to protect the gimbal spring supporting the head device from vibration and impact. It is possible to provide a disk drive device that has been made.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of a recording / reproducing apparatus having a disk drive device according to the present invention.

FIG. 2 is a perspective view showing a configuration of a main part of a disk drive device according to the present invention.

3 is a perspective view showing a state in which a disc cartridge is mounted on the recording / reproducing apparatus shown in FIG.

FIG. 4 is an enlarged perspective view of an essential part showing a configuration of a magnetic head support arm which is an essential part of the disk drive device.

FIG. 5 is a side view showing a configuration of a main part of the disk drive device.

FIG. 6 is a side view showing a configuration of a main part of the disc drive device in a state where the recording and reproducing device is operated to open a lid.

FIG. 7 is a side view showing a state in which a disc cartridge is mounted on the disc drive device.

FIG. 8 is a perspective view showing the configuration of a recording / reproducing disk cartridge used as a recording medium in the recording / reproducing apparatus as seen from the upper surface side.

FIG. 9 is a perspective view of the structure of the recording / reproducing disk cartridge as viewed from the bottom side.

FIG. 10 is a perspective view from the top side showing the configuration of a read-only disc cartridge used as a recording medium in the recording and reproducing apparatus.

FIG. 11 is a perspective view of the structure of the reproduction-only disc cartridge as viewed from the bottom side.

[Explanation of symbols]

 19 Cartridge Holder 28 Head Arm 29 Stopper Arm 30 Gimbal Spring 31 Magnetic Head 32 Slide Plate 41 Slider 42 Pulling Coil Spring 55 Abutting Piece 120 Disk Cartridge for Recording / Playing 121 Disk Cartridge for Playback Only

Claims (1)

[Claims] 1. A holder member, into which a recording medium is inserted and which holds the recording medium, and a gimbal spring, which is arranged in the vicinity of the holder member, allow the recording medium held by the holder member to come into contact with and separate from the recording medium. A head device that is made and supported, a first position that is movably disposed on the holder member, that displaces the gimbal spring, and that prevents the head device from entering the holder member, and the head device. A head operating member that can be moved and moved to a second position that allows the head operating member to enter the holder member; and a biasing member that biases the head operating member in the direction toward the first position. A head operating member which is provided on the head operating member and which is brought into contact with a recording medium inserted into the holder member to move the head operating member to the second position. In response to an insertion operation of the recording medium into the holder member, the recording medium is moved from the first position to the second position, and the recording medium is moved to the holder member by the urging force of the urging member. Disk drive device that is urged toward the outside of the disk.