JPH09128834A - Magneto-optical recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a magnetic head being an overwrite head from abutting on a magneto-optical disk, that is, prevent the disk from being damaged and cracked on a disk surface when it is loaded. SOLUTION: The magnetic head 72 being the overwrite head opposed to an optical pickup 71 having an objective lens 711 and the magneto-optical disk between is attached to a holding device 73 through a suspension 77. A support lever 72 for moving the magnetic head 72 to be away from and nearer to the magneto-optical disk through the suspension 77 by turning operation is arranged on the downside of the suspension 77. Then, the device is constituted so that the support lever 76 is engaged with a damper 16, and the turning operation is made slow, and the speed that the magnetic head 72 is abutted on the magnetic-optical disk is mitigated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magneto-optical recording apparatus for recording on a magneto-optical recording medium such as a magneto-optical disk with an optical pickup and a magnetic head.

[0002]

2. Description of the Related Art Conventionally, a magneto-optical recording apparatus is provided with an overwrite head corresponding to an optical pickup, and when a magneto-optical disk is inserted between them, the overwrite head is slidably contacted, that is, loaded. Also, when the disc is not inserted, the overwrite head is retracted to a position where it does not interfere with the insertion of the disc so that the overwrite head is moved toward and away from the magneto-optical disc by the support lever, that is, It is a mechanism that moves up and down.

Therefore, the support lever is located below the overwrite head, which is held so as to be movable up and down through a suspension having a required elasticity, and more specifically, is located below the suspension and pivots in the vertical direction. It is abutted by the urging force of a torsion spring on the upper surface side of a cartridge holder that is vertically arranged in a state in which a disk cartridge in which a magneto-optical disk is stored is inserted and held.

When the cartridge holder is raised, the support lever is rotated upward against the biasing force of the torsion spring to push up the suspension, and the overwrite head is inserted into or removed from the disc cartridge on the upper surface side of the cartridge holder. When the cartridge holder is lowered by inserting the disc cartridge, the cartridge holder is rotated downward together and separated from the suspension to release the push-up, and The write head is configured to be inserted into the cartridge holder, that is, the disk cartridge with the shutter opened to be brought into sliding contact with the magneto-optical disk for recording.

[0005]

However, in the conventional magneto-optical recording apparatus, since the cartridge holder is constructed so as to be rapidly lowered when the disk cartridge is inserted, the overwrite head is mounted on the magneto-optical disk. The support lever that moves up and down is also suddenly moved downward together with the cartridge holder to abruptly separate from the suspension holding the overwrite head and release the push up, which causes the overwrite head to fall into the disk cartridge. Thus, the elasticity of the suspension also acts on this approach.

For this reason, the overwrite head is abutted against the surface of the magneto-optical disk so as to hit it, so that damage or cracks may occur on the surface of the magneto-optical disk. There was a problem that caused an error.

The present invention has been made in view of the above points, and provides a magneto-optical recording apparatus which prevents damages and cracks on a disk surface when a magnetic head is loaded on a magneto-optical recording medium. The purpose is to

[0008]

In order to achieve the above object, a magneto-optical recording apparatus according to the present invention comprises an optical pickup,
By a corresponding magnetic head on the side opposite to the optical pickup with respect to the magneto-optical recording medium, a holding member made of an elastic body for holding the magnetic head, and pressing the holding member from below and holding the holding member above. A first position for separating the magnetic head from the magneto-optical recording medium;
The magnetic head is located closer to the magneto-optical recording medium by being spaced apart from the holding member below the second position.
And a first supporting member that is movable at the position
And a movement resistance member that restricts the movement between the second position and the second position.

With this structure, the movement of the support member becomes slower, the moving speed of the magnetic head toward the magneto-optical recording medium is moderated, and abrupt contact with the magneto-optical recording medium, that is, hitting is performed. Contact is prevented.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, an example of a magneto-optical recording device to which the present invention is applied will be described with reference to FIGS. To do.

In FIG. 1 and FIG. 2, reference numeral 1 denotes the whole magneto-optical recording apparatus, and a chassis 4 mounted in a float shape on a main frame 2 via a vibration isolating member 3, and a chassis surface 4 with respect to a substrate surface 41. A disk cartridge holder (hereinafter referred to as a holder) 5 that is supported so that it can be contacted and separated by
A slider 6, which is slidably supported in the front-rear direction on the chassis 4, and moves the holder 5 toward and away from the substrate surface 41 of the chassis 4 in accordance with this sliding operation, and a magneto-optical head mechanism 7.
And a disk rotating mechanism 8.

As shown in FIG. 2, the main frame 2 has side surface portions 22 and 23 formed on both sides of a base surface portion 21 so as to face each other at right angles, and the front and rear portions on the inner surface side of the side surface portions 22 and 23 are formed. Are mounting pieces 221, 222 and 231, 23 of the anti-vibration rubber legs 31, 32 and 33, 34 as the anti-vibration member 3.
2 is formed in parallel with the base surface portion 21, that is, in a cut and raised shape in the horizontal direction, and engaging pieces to be described later formed on the slider 6 at the center portion of the one side surface portion 22 and the front and rear portions of the other side surface portion 23, respectively. Supporting pieces 223, 233 and 234 which are engaged with are formed horizontally in a cut-and-raised shape, and locking edges 223a and 233a are formed in a rising shape at the rear edge ends of the supporting pieces 223 and 233. The supporting pieces 223, 233, 234 have engaging grooves 223b, 233 at engaging portions with engaging pieces of the slider 6.
b and 234b are formed by cutting.

The chassis 4 has a board surface 4 as shown in FIG.
Side portions 42 and 43 are formed on both sides of the substrate 1 so as to face each other, and a turntable 81 of the disk rotating mechanism 8 is arranged on the substrate surface 41 at substantially the center thereof. A moving opening 411 of the optical pickup 71 of the magneto-optical head mechanism 7 is formed in the one half surface portion 41a of the side. Positioning protrusions 412 and 413 in the front-rear direction and the height direction of the disk cartridge are provided at the front end and the rear end near the one side face portion 42, and the protrusion 412 on the front end side is provided.
Is formed by a pin, the protrusion 413 on the rear end side is formed by a cut-and-raised piece, and positioning protrusions 414 and 415 in the height direction are formed on the front end and the rear end near the other side surface part 43.
Are formed in a protruding shape.

At the front and rear portions of the upper edges of both side surface portions 42 and 43, the above-mentioned anti-vibration rubber is provided so as to face outwardly in the horizontal direction to the mounting pieces 221, 222 and 231, 232 of the main frame 2. Recessed fitting pieces 421, 422 and 431, 432 for fitting the legs 31, 32 and 33, 34
Is bent, and both side surface portions 42 and 43 are
Guide cut grooves 423 and 433 for guiding the holder 5 to and away from the substrate surface 41, that is, a direction perpendicular to the substrate surface 41 are formed in the substantially central portions thereof, respectively. Guide cut slot (hereinafter referred to as vertical guide slot)
A board surface 41 that guides the slider 6 horizontally in the front-rear direction with respect to the board surface 41 is formed on the front and rear surfaces sandwiching 423 and 433.
Guide slits parallel to and (hereinafter referred to as horizontal guide slots)
424, 425 and 434, 435 are formed, and vertical groove portions 424a, 425a and 434 which open to the upper edge are formed at the rear ends of the parallel guide grooves 424, 425 and 434, 435.
a, 435a are formed.

Further, at the front ends of the side surface portions 42 and 43,
Axial support pieces 426 and 436 on which the front door 9 is axially supported are formed to project. In addition, a little near the rear end from the center, both side surface portions 22 and 23 of the main frame 2 described above.
Rising locking edge 2 of shaft support pieces 223 and 233 formed on
Locking portions 427 and 437 corresponding to 23a and 233a
The engaging portion 427 on the one side surface portion 42 side is formed in a concave shape so that the engaging edge 223a of the support piece 223 can be sandwiched from the front and rear, and the other side surface portion 4
The locking portion 437 on the third side is formed in a projecting piece shape, and the supporting piece 233 is formed.
The locking edge 233a is adapted to be accommodated from the rear side.

As shown in FIG. 3 in an enlarged manner, the holder 5 is formed such that side portions 52 and 53 face each other on both sides of a top plate surface 51 which is narrower than the substrate surface 41 of the chassis 4 and face each other. Horizontally inward at the lower edges of the front ends of the surface portions 52 and 53,
That is, holder pieces 54 and 55 are formed so as to be parallel to the top plate surface 51, and a holder piece 56 is also formed so as to be protruded substantially at the center of the side surface portion 53. 53 and holder pieces 54, 55, 56
A cartridge accommodating portion 501 that holds a disc cartridge so that it can be inserted and removed is formed. Both side portions of the top plate surface 51 forming the cartridge housing portion 501, both side surface portions 5
Guide portions 511, 512, 521, 531 and 541, 551 that extend forward and bend outward to guide the cartridge at the time of insertion are formed on the front edges of the holders 2, 53 and the holder pieces 54, 55, respectively. .

A moving head of the overwrite head (hereinafter referred to as a magnetic head) 72 of the magneto-optical head mechanism 7 is moved from the center of the top plate surface 51 of the holder 5 to the center of the half surface 51a on the side surface 52 side. A window portion 513 is formed, and a guide protrusion 514 is formed on the peripheral edge of the window portion 513 on the front half side. Further, the guide ridge 514 is provided with three rising edges to also serve as a guard for protecting the recording head from an impact from above.

An operation piece 522 for opening the shutter, which serves as a shutter opening mechanism for moving the shutter member to the fully open position by inserting the disk cartridge, is provided substantially at the center of the inner surface of the side surface portion 52 of the holder 5. A projecting piece 532 for preventing erroneous insertion of the disk cartridge is horizontally bent at the rear portion of the inner surface of the other side surface portion 53, and an outer surface is formed at the center of both side surface portions 52 and 53. The support pieces 523a and 533a are cut and formed on the side, and the projections 523 engage with the guide cut grooves 423 and 433 of the chassis 4 described above on the support pieces 523a and 533a.
And 533 are formed, and projections 524, 525 and 5 are formed on the front and rear portions to engage with a cam groove hole of the slider 6 described later.
34 and 535 are formed.

Of these projections, the central projection 523 on the one side surface 52 side and the central and front projections 533 and 534 on the other side surface 53 side are stamped and formed by burring, and the one side surface 52 side is formed. The front projection 524 is formed by implanting a pin, and the rear projections 525 and 535 on both side surfaces 52 and 53 are cut and raised in substantially the same plane as the top surface 51 to form a projection. The protruding piece-shaped protrusion 535 on the side of the other side surface portion 53 is formed wide.

The holder 5 thus formed
A shutter locking spring member 10 for locking the shutter member of the disk cartridge and a cartridge mounting arm member 11 are arranged in the disk. This shutter locking spring member 1
0 is due to the spring locking piece 515 formed by cutting and raising in the vicinity of the front edge side of the guide projecting edge 514 located at the front half side peripheral edge of the moving window section 513 of the top plate surface 51, and the front side projection 524 of the one side surface section 52. The shutter pressing portion 10a is locked and arranged from the front portion of the top plate surface 51 to the one side surface portion 52, and the shutter pressing portion 10a is inside from the outer surface side of the top plate surface 51 and the shutter locking portion 10b is inside from the outer surface side of the one side surface portion 52, respectively. That is, the cartridge storage unit 501
It faces the one side surface part 52 side.

The shutter locking spring member 10 is elastically deformed when the disk cartridge described later is inserted into the cartridge housing 501 to press the shutter member described later and engage with the shutter opening to lock the shutter member. Also, after the disk cartridge is pulled out, it elastically returns while moving in the insertion direction. On the other hand, the cartridge mounting arm member 11 is arranged at the rear part of the other half surface 51b of the top plate surface 51 and is rotated by inserting / removing the disk cartridge, and is generally formed in a fan shape in plan view. .

This cartridge mounting arm member 11
Is the rotation center portion 11 when the base end portion of the substantially fan-shaped main plate surface portion 111 is
1a, a shaft hole 112 is provided so as to project, and an arm piece 113 is provided on one side with respect to the rotation center 112.
Is integrally extended, and a cartridge locking piece 114 is formed at the tip of the arm piece 113 via a bent portion 113a bent downward at a substantially right angle. An engaging projection piece 115 is formed at the tip of the arm piece 113 adjacent to the bent portion 113a.
Has an obtuse angle (90 ° or more) on the outer corner and a rounded tip corner.

The main plate surface portion 11 of the arm member 11
A cartridge contact piece 116 is formed on the other side of the rotation center portion 111a by bending it at a substantially right angle downward, and a circle around the shaft hole 112 is formed near the rotation center portion 111a. An arcuate window hole 117 is formed, and a spring hook piece 118 is projectingly provided on the outer edge.

The cartridge mounting arm member 11 thus formed has a rotation center portion 111a of the main plate surface portion 111.
At the rear part of the other half of the top plate surface 51 of the holder 5,
Specifically, the shaft hole 112 is fitted and pivotally supported by the support shaft 536 formed by the burring process on the projection-like projection 535 at the rear portion of the other side surface portion 53, and the inner edge of the arc-shaped window hole 117 and the main plate. From the outer edge of the surface portion 111 to the arm piece 113
The outer edge of the top plate surface 51 and the other half 5
1b engages with the rising prevention pieces 516 and 517 formed by cutting and raising in a substantially inverted L shape at the rear portion, and the cartridge contact piece 116 is attached to the other half surface 51b of the top plate surface 51 from the rear end. It is inserted into the notch groove 518 formed in an arc shape with the support shaft 536 as the center, and faces the inside of the cartridge storage portion 501.

The cartridge mounting arm member 11 has a spring hook piece 118 on the outer edge of the main plate surface portion 111.
A tension coil spring 12a is stretched between a spring hook piece 519a formed in a cut and raised shape on the front part of the other half surface 51b of the top plate surface 51 of the holder 5, and the disc is always locked by the cartridge locking piece 114. The locked state of the cartridge is released, and the cartridge contact piece 116 is urged to rotate the disk cartridge in the pushing direction.

Further, as shown in an enlarged view in FIG. 4, the slider 6 has side surfaces 42 and 43 of the chassis 4 and the holder 5 on both sides of a top plate surface 61 which is slightly narrower than the top plate surface 51 of the holder 5. The side surface portions 62 and 63 located between the side surface portions 52 and 53 of the holder 5 are formed so as to be lowered, and the front and rear portions of the side surface portions 62 and 63 have the both side surface portions 52 of the holder 5 described above.
The cam groove holes 621, 622 and 631, 632 with which the projections 524, 525 and 534, 535 formed on the front and rear portions of the and 53 are engaged are formed so as to be inclined forward high and the front end is horizontal. .

Further, parallel guide grooves 424, 425 and 43 are formed on the front and rear portions of the both side surface portions 62 and 63 at the front and rear portions of the both side surface portions 42 and 43 of the chassis 4 described above.
Protrusions 623, 624 and 63 engaged with 4,435
3, 634 are bulging support surfaces 623a, 624a and 633.
It is formed by punching outward through a and 634a by burring. In addition, in the central portion of the one side surface portion 62 and the front and rear portions of the other side surface portion 63, an inverted L is formed in the same plane direction as the top plate surface 61.
The engaging pieces 625 and 635, 636 having a character shape are formed,
The vertical portions 625a, 635a, 636a are opposed to the supporting pieces 223, 233, 234 formed on the both side portions 22 and 23 of the main frame 2 from the front in a crossing direction, and the vertical portions 625a, 635a, 636a.
The engaging grooves 223b of the support pieces 223 and 233, 234.
Engaging grooves 625b, 635b, 636b that mesh with each other and 233b, 234b are formed.

A window hole 637 into which the arm piece 113 of the cartridge mounting arm member 11 pivotally supported by the holder 5 is inserted is formed in a substantially central portion of the other side surface portion 63, and this window hole 637 is formed. On the rear edge of the arm piece 11
A guide protrusion 638 whose inner edge that is continuous with the engagement protrusion 115 of No. 3 is slidably contacted with the inside edge is bent to the outer surface side and protrudes.
Further, an engaging piece 639 of the eject drive mechanism 13 is bent and formed inward at the rear end of the other side surface portion 63.

On the top plate surface 61 of the slider 6, an opening 611 for moving the recording head H is formed on the half surface 61a extending from the substantially central portion to the side surface 62 side, and the other side surface is formed. On the other half surface 61b toward the side of the portion 63, the slider 6 is slid forward with respect to the tension coil spring 12a for pivotally urging the cartridge mounting arm member 11 pivotally supported by the holder 5 and the holder 5. A tension coil spring 1 stretched between a spring hook piece 519b formed by cutting and raising in a front portion of a top plate surface 51 of a holder 5 and a rear portion of a top plate surface 61 of a slider 6 for dynamically urging.
2b escape opening 612 is formed, and further,
At the rear of the other half surface 61b, escape holes 613 and 614 of the lifting prevention pieces 514 and 515 formed on the top plate surface 51 of the holder 5 are formed as long holes that are long in the front-rear direction. Further, a pressing portion 615 is formed on the front end of the top plate surface 61 so as to stand down.

In order to assemble the disk loading mechanism with the main frame 2, the chassis 4, the holder 5 and the slider 6 formed as described above, first, the holder 5 and the slider 6 are attached to the side surface portions 52 and 53 of the holder 5. Front and rear projections 524, 525 and 534, 53
5 is a cam groove hole 6 on both side surfaces 62 and 63 of the slider 6.
21, 622 and 631, 632 are inserted and engaged from the inside and overlapped with each other, and between the spring hook piece 519b at the front portion of the top plate surface 51 of the holder 5 and the rear portion of the top plate surface 61 of the slider 6. A tension coil spring 12b is stretched and connected to.

Next, the connected holder 5 and slider 6 are attached to the chassis 4 on both side surface portions 52 of the holder 5.
The protrusions 523 and 533 in the center of
On both inner side surfaces 42 and 43 of the supporting pieces 523a and 5
Vertical guide groove holes 423 and 433 in a state of sliding contact with 33a.
And the horizontal guide groove holes 4 at the front and rear
24, 425, 434, and 435, projections 623, 624, and 6 on the front and rear portions of both side surface portions 62 and 63 of the slider 6.
33, 634 with bulging support surfaces 623a, 624A on the inner surface
And 633a and 634a are slidably in contact with each other by inserting and engaging them to assemble the disc loading mechanism. The optical magnetic head mechanism 7 is attached to this disk loading mechanism.

The optical magnetic head mechanism 7 is constructed as shown in an enlarged scale in FIG.

As described above, the optical magnetic head mechanism 7 has the optical pickup 71 having the objective lens 711 for irradiating the signal recording surface of the magneto-optical disk with the laser beam and the predetermined signal recording surface of the magneto-optical disk. A magnetic head 72 as an overwrite head in which a magnetic field applying head for applying an external magnetic field is incorporated in a slider,
The optical pickup 71 and the magnetic head 72 are held by a holding device 73 so as to face each other with the magneto-optical disk sandwiched therebetween in the vertical direction.
Is held by

The holding device 73 has a support plate 75 fixed to the upper surface 741 of a bracket 74 formed in a substantially U shape in a side view in a cantilevered manner and positioned below the support plate 75. The support lever 76 and the bearing portion 742 formed on both sides of the vertical surface portion 742 of the bracket 74.
The optical pickup 71 is horizontally fixed upward to the lower surface 743 of the bracket 74, and the magnetic head 72 has a suspension 77 formed of, for example, a gimbal spring. It is supported on the lower surface side of the support plate 75 via the elastically swingable vertically. The suspension 77 is in the form of a long piece and is fixed to the lower surface side of the support plate 75 at the base end portion thereof with the free end portion to which the magnetic head 72 is attached corresponding to the tip end portion, and the magnetic head 72 is elastically shaken in the vertical direction. Be movably supported.

The suspension 7 of this support plate 75
The free end side 751 corresponding to 7 is formed in a strip shape, and lateral piece portions 751a and 751b that are transversely opposed to the suspension 77 are extended near the tip and the base portion. The tip of the suspension 77 is engaged with and supported by the upper surface of the lateral piece 751a on the tip side in a mounted manner.
Further, the magnetic head 72 and the suspension 77 are protected by the two lateral pieces 751a and 751b during operation.

Further, as shown in FIG. 6, the support lever 76 is substantially L-shaped in a side view, is composed of a horizontal plane portion 761 and a vertical surface portion 762, and has side surface portions 763 on both sides of an upper half portion of the vertical surface portion 762. Is bent inward, and this side surface portion 763 is formed.
A shaft projection 763a is punched out by burring, and a shaft attaching surface portion 764 is bent inward in the lower half portion, and a lock shaft 78 for locking the support lever 76 at the upper rotating position on the shaft attaching surface portion 764. Are parallel to the axial direction of the shaft protrusion 763a and extend in one direction to be fixed. Then, the engagement arm 7 is attached to the vertical surface portion 762 of the support lever 76.
65 is bent rearward, and engaging teeth 765a are formed at the tip of the engaging arm 765.

The support lever 76 thus formed is
The engaging arm 765 is arranged below the support plate 75 fixed to the bracket 74, and the engaging arm 765 is projected rearward from a vertically long window hole 742b formed in the vertical surface portion 742 of the bracket 74, and both side shaft projections are formed. 763a is engaged with the bearing portions 742a on both sides of the vertical surface portion 742 of the bracket 74, and is pivotally supported so as to be vertically rotatable. In this state, the front end portion 761a of the horizontal plane portion 761 of the support lever 76 faces the lower surface side of the free end portion of the suspension 77 fixed at the base end portion of the support plate 75 to which the magnetic head 72 is attached. The support lever 76 is constantly urged to rotate downward by the torsion spring 14 which is interposed between the support lever 76 and the horizontal plane portion 76.
The first tip portion 761 a is biased so as to be separated from the suspension 77.

Further, the horizontal plane portion 76 of the support lever 76
The abutting screw pin 15 that is brought into contact with the top plate surface 51 of the holder 5 is screwed into the substantially central portion of the holder 1, and the horizontal plane portion 761.
Is projected to the lower surface side, and the amount of this projection can be adjusted.

Then, the vertical surface portion 742 of the bracket 74
An arm plate 79 is fixed to the rear surface side, and a damper as a rotation resistance member against the downward rotation of the support lever 76, that is, the rotational biasing force of the torsion spring 14, is fixed to the arm plate 79. 16 is attached, and the engagement arm 765 of the support lever 76 protruding from the window hole 742b is engaged with the damper 16. The damper 16 is an oil damper in which the engagement gear 161 is rotated with a required resistance, and the engagement teeth 765a of the engagement arm 765 are engaged with the engagement gear 161 to require the support lever 76. It is designed to rotate with resistance.

Further, the bracket 74 is provided with a screw receiver 18 screwed onto the rotary screw shaft 171 of the stepping motor 17 for moving the optical magnetic head mechanism 7, and is fixed to the lower surface 743 of the bracket 74. The frame body 712 of the optical pickup 71 that has the guide shafts 19a and 19a
A bearing-equipped guide hole 713 and a guide groove 714 which are fitted and engaged with b are provided.

As shown in FIG. 7, the optical magnetic head mechanism 7 constructed as described above is mounted on the disk loading mechanism assembled by connecting the holder 5 and the slider 6 to the chassis 4 as described above. To mount the optical magnetic head mechanism 7, the lower surface portion 743 side of the bracket 74 of the holding device 73 is made to correspond to the lower side of the chassis 4 with the guide shaft 19a inserted through the bearing guide hole 713 of the optical pickup 71. Objective lens 7 of optical pickup 71
The 11 side is made to face the moving opening 411 formed on the substrate surface 41 of the chassis 4 from below, and the support plate 75 and the support lever 76 on the upper surface 741 side of the bracket 74 are provided.
The horizontal plane portion 761 of the above is made to correspond to the upper side of the slider 6, and the magnetic head 72 is moved through the movement opening 611 formed in the top plate surface 61 of the slider 6, and the movement window portion 511 formed in the top plate surface 51 of the holder 5. From above.

In this state, the rotary screw shaft 17 of the stepping motor 17 previously attached to the rear surface side of the chassis 4
1 is fitted with the screw receiver 18 attached to the bracket 74, and the guide groove 714 on the optical pickup 71 side is preliminarily provided on the lower surface side of the chassis 4 along the guide shaft 19b.
Guide shaft 19 inserted into the guide hole 713 after engaging with the guide shaft 19
A is supported on the lower surface side of the chassis 4 at both ends thereof.

In this way, the optical magnetic head mechanism 7
Is the chassis 4, the holder 5 and the slider 6 described above.
It is mounted so as to be moved by the stepping motor 17 with respect to the disk loading mechanism consisting of, and the support lever 76 of the holding device 73 is rotatably biased downward by the urging force of the torsion spring 14 so that the abutment screw pin 15 is held. Of the top plate surface 51, that is, the rear side surface of the moving window portion 513 of the half surface 51a.

In this state, fitting pieces 421, 422 and 431, 4 formed on both side surface portions 42 and 43 of the chassis 4
The anti-vibration rubber legs 31, 32 and 33, 34 are fitted to 32. Further, the front end portion of the chassis 4, that is, both side surface portions 4
A shaft support piece 4 formed by projecting vertically from the front ends of 2 and 43.
The front door 9 is supported between 26 and 436, and a DC gad motor as an eject drive mechanism 13 is attached to the rear end of the slider 6, and a protrusion 13a protruding from the gear of the motor is attached to the other side surface of the slider 6. The engagement piece 639 at the rear end of 63 is made to correspond from the inner surface side.

On the lower surface side of the board surface 41 of the chassis 4, a circuit board (not shown) on which a required electric circuit is formed is attached.

Then, the chassis 4 is attached to the main frame 2
And the mounting pieces 22 formed on both side surfaces 22 and 23
Anti-vibration rubber legs 31, 32 for 1, 222 and 231, 232
And 33, 34 via stepped screws 35, 36 and 37,
Install by tightening with 38. In this state, the engaging portions 427 and 437 of the side surface portions 42 and 43 of the chassis 4 are engaged with the engaging edges 223 of the support pieces 223 and 233 of the main frame 2.
a and 233a, the engaging portion 427 sandwiches the engaging edge 223a from the front and the rear, and the engaging portion 437 includes the engaging portion 233a.
From the rear side.

After mounting the chassis 4 on the main frame 2 in this manner, the front panel 20 is fitted and fixed to the front end of the main frame 2. In this state, the front door 9 pivotally supported by the front end of the chassis 4 corresponds to the cartridge insertion opening 20a of the front panel 20 from the inner surface side, and the front door 9 is opened inside.

Further, the front panel 15 is provided with a push button for driving and operating the eject drive mechanism 13 and an indicator lamp for displaying recording / reproducing of the disc.
The pressing portion 6 formed at the front end of the top plate surface 61 of the slider 6.
Ejection operation pin insertion holes corresponding to 15 are formed.

Next, an example of a disk cartridge used in the magneto-optical disk device 1 configured as described above will be described with reference to FIGS.

In the figure, a disc cartridge denoted by reference numeral 101 has a disc-shaped magneto-optical disc 102 and a cartridge 103 in which the magneto-optical disc 102 is rotatably accommodated. ing.

Of these, a magnetic recording layer is formed in the data recording area of the magneto-optical disk 102, and an information signal is written in and / or read from the magnetic recording layer by a magneto-optical means. .

In this magneto-optical disk 102, one main surface portion serves as a signal recording surface, and a disk-shaped chucking hub 102a made of metal is provided in the central portion of the disk.

On the other hand, the cartridge 103 has a pair of upper and lower half halves 104 and 105 having a substantially box shape having a sufficient space for accommodating the magneto-optical disk 102 therein.
The halves 104 and 105 are made to abut each other.

The cartridge 103 has a front portion 10
The disk cartridge 101 for the cartridge holder (described later) is formed by forming notches in the cartridge insertion side corners including the side surface 103b and the side surface 103b.
Is provided with a guide surface 103c that enables smooth insertion of the.

One side surface portion 1 of this cartridge 103
03b has a plurality of shutter guide portions 103b ₂ arranged in parallel in the cartridge inserting / removing direction at intervals, and the operation piece 52 for opening the shutter of the cartridge holder 5 described above.
2 is provided with a shutter opening concave groove 103b ₁ for opening the cartridge opening to open the cartridge opening, and an erroneous insertion preventing projection 532 is exposed on the cartridge insertion side of the other side surface portion 103d. cartridge engaging piece 114 of the cartridge mounting arm 11 described above in a position to the cartridge insertion state enabling the erroneous insertion preventing groove 103d ₁ and cartridge pulling side of the erroneous insertion preventing groove 103d ₁ insert 101 A concave hole 103d ₂ facing the hole is provided.

Further, on the cartridge insertion side near the one side surface portion 103b in the cartridge 103,
A shutter locking arm (not shown) that locks the shutter member 106 in the fully closed position facing the shutter opening concave groove 103b ₁ is rotatably housed.

On the lower half 105 of the cartridge 103, the cartridge positioning protrusions 412 and 413 projecting from the chassis 4 for horizontally positioning the disk cartridge 101 in the main body of the magneto-optical recording device.
The cartridge positioning pin engagement hole 105a
105b are provided at intervals in the cartridge inserting / removing direction, and are located in the rear surface portion 103e of the cartridge 103 near the other side surface portion 103d.
An erroneous erasure prevention member 107 for selecting whether or not to write an information signal to 2 is provided so as to face the upper half 104 side as a display portion and the lower half 105 side as a detection portion.

On the lower surface of the lower half 105, there is provided a shutter guide groove 103b ₃ located near the one side surface 103b and extending in the cartridge inserting / removing direction.

The lower half 105 is provided with a first opening 108a and a central opening window 108b for exposing a part of the signal recording surface of the magneto-optical disk 102 and the chucking hub 102a to the outside of the cartridge. Has been.

Of these, the first opening 108a is located substantially in the center of the cartridge 103 in the cartridge insertion / removal direction between the front surface 103a and the rear surface 103e of the cartridge 103.
3 is formed by a long hole extending from one side surface portion 103b to a substantially central portion in the cartridge width direction, and a signal of the magneto-optical disc 102 when the disc cartridge 101 is mounted in the main body of the magneto-optical recording device. The objective lens 711 of the optical pickup 71 having a part of the recording surface described above.
It is configured to face.

Further, the central opening window 108b has the first opening 108b.
The chucking hub 102a is formed by a circular hole that opens in the vicinity of the opening 108a so that the chucking hub 102a faces the disk table of the disk rotation drive mechanism.

The upper half 104 is provided with a second opening 108c located near the one side surface 103b of the cartridge 103 and corresponding to the first opening 108a.

The second opening 108c is formed as a rectangular opening in plan view which is large enough to expose a part of the other main surface of the magneto-optical disk 102 to the outside of the cartridge. When the cartridge 101 is mounted in the body of the magneto-optical recording apparatus, the magneto-optical disk 10
The other main surface of the second head 2 is configured to face the above-described magnetic head 72.

The first and second openings 108a, 10
8c and a shutter member 106 as a cartridge shutter that opens and closes the central opening window 108b is slidably attached to the one side surface portion 103b of the cartridge 103 in the cartridge insertion / removal direction.

The shutter member 106 has a first opening 108a and a central opening window 108 of the lower half 105.
a first shutter plate portion 106a for closing b, a second shutter plate portion 106b provided in parallel with the first shutter plate portion 106a for closing the second opening portion 106c of the upper half 104, and The two shutter plate portions 106b and the connecting piece portion 106c that connects the base end portions of the first shutter plate portion 106a together.

Of these, the first shutter plate portion 106a is formed as a rectangular piece large enough to close the first opening 108a and the central opening window 108b.

The first shutter plate portion 106a has a shutter pressing plate 109 whose tip is attached to the lower half 105.
It is pressed and supported by, which prevents it from rising from the cartridge 103.

On the other hand, the second shutter plate portion 106b is formed as a rectangular piece having a size sufficient to close the second opening portion 108c.

The connecting piece portion 106c is provided integrally with a rectangular base piece 106c ₁ having a vertical dimension substantially equal to the thickness of the cartridge 103 and both end portions of the base piece 106c _{1 in} the cartridge inserting / removing direction. Guide pieces 106c ₂ and 106c _{3 having a} substantially U-shaped cross section that can be engaged with the guide portion 103b _{2 of the} shutter opening concave groove 103b ₁ and the shutter guide groove 103b ₃ of the lower half 105 side.
And is constituted by.

The base piece 106c ₁ of this connecting piece 106c
To is partially provided shutter opening 106c ₄ consisting insertable square hole of the spring member 10 described above, also in the guide piece 106c ₂ of the cartridge insertion side, of the two guide pieces 106c _2, 106c ₃ is A locking piece 106c ₅ facing the shutter locking arm in the shutter closed state is integrally provided.

Magneto-optical recording apparatus 1 having the above-described structure
The operation of mounting and ejecting the disc cartridge 101 will be described.

First, as shown in FIG. 7, in the state before the operation and the state when the disc cartridge 101 is ejected, the cartridge mounting arm member 11 pivotally supported by the holder 5 is moved by the elasticity of the tension coil spring 12a. The arm piece 113 is urged to rotate and protrudes from the window hole 637 of the slider 6, and the inner edge of the arm piece 113 slides on the guide protrusion 638 at the rear edge of the window hole 637 to pull the slider 6 against the holder 5. The spring 12a is slid backward and biased against the elastic force of the spring 12a.

In this state, the protrusions 524, 52 of the holder 5
5 and 534 and 535 are cam groove holes 62 of the slider 6.
1, 622 and 631, 632 are engaged with the upper horizontal portions of the front end to raise the holder 5 to the chassis 4, and the central protrusions 523 and 533 have the vertical guide grooves 423 and 433 of the chassis 4. Support piece 5 on top of
23a and 533a are engaged with each other while being in sliding contact with the inner surfaces of the side surface portions 42 and 43. In this state, the cartridge contact piece 116 of the cartridge mounting arm member 11
Is inside the holder 5, that is, the cartridge storage portion 501.
It is located at the rear of the car.

On the other hand, the slider 6 is also slid rearward with respect to the chassis 4 and has projections 623, 624 and 633.
634 is provided at the rear portion of the horizontal guide groove holes 424, 425 and 434, 435 of the chassis 4 with the bulging support surfaces 623a, 624.
a and 633a and 634a are in the engagement position in a state of slidingly contacting the inner surfaces of the side surface portions 42 and 43, and in this state, the slider 6 has the engagement pieces 625 and 635 and 636.
Are engaged with each other in the vertical and horizontal directions by the interlocking meshing engagement between the engaging grooves 625b and 635b and 636b and the engaging grooves 223b and 233b and 234b of the horizontal support pieces 223, 233 and 234 of the main frame 2. Are combined. Further, the chassis 4 is in a state where the engaging portions 427 and 437 are engaged with the rising engaging edges 223a and 233a of the support pieces 223 and 233 of the main frame 2 from the front and rear and the rear side.

As described above, in the pre-operation state and the ejecting state, the holder 5 and the slider 6 are slidably supported by the side surface portions 42 and 43 of the chassis 4, respectively, and are separately positioned in the lateral direction. The main frame 2 is vertically and laterally positioned and locked, that is, vertically and laterally locked, and the chassis 4 is prevented from moving in the front-back direction with respect to the main frame 2. The disk loading mechanism including the holder 5, the slider 6 and the chassis 4 is fixedly held to the main frame 2.

The horizontal support piece 22 of the main frame 2
3 and 233, 234, the engaging grooves 223b and 233.
This horizontal support piece 22 is formed without forming b and 234b.
3 and 233, 234 with respect to the engaging piece 6 of the slider 6
25 and 635, 636 engaging grooves 625b and 635
b and 636b may be directly engaged with each other, and in this case, positioning and locking is performed only in the vertical direction.

In this way, before the operation of the disk loading mechanism and before the ejection of the disk cartridge 101, as shown in FIG. 11, the optical magnetic head mechanism 7 causes the support lever 76 of the holding device 73 to push the abutment screw pin 15.
Via the top plate surface 51 of the holder 5 in the raised position, that is, the rear side surface 51a of the moving window portion 513, the bias of the torsion spring 14 is resisted and pushed upward to rotate the magnetic head. The suspension 77 to which the 72 is attached is pushed up at the tip portion 761a of the horizontal plane portion 761 to move the magnetic head 72 to the moving window portion 513 of the holder 5.
It is held on the same plane as. In this state, the support lever 76 is locked via a lock shaft 78 by a lock mechanism (not shown).

Therefore, in order to mount the disc cartridge 101 on the magneto-optical recording apparatus 1, the disc cartridge 101 is mounted on the cartridge insertion opening 2 of the front panel 20.
When it is inserted into the cartridge housing portion 501 of the holder 5 from 0a, the guide surface 103c of the cartridge 103 comes into pressure contact with the cartridge contactor of the shutter locking spring member 10.

Then, when the disk cartridge 101 is further inserted, the locking portion of the spring member 10 relatively moves to ride on the connecting piece portion 106c of the shutter member 106, and the connecting piece portion from the shutter opening operation piece 522 of the holder 5. The shutter member 106 moves in the opening direction due to the pressing force of 106c.

At this time, the engaging portion of the spring member 10 falls into the shutter opening portion 106c ₄ of the connecting piece portion 106c of the shutter member 106, and the cartridge 103
Of the first opening 108a, the central opening window 108b and the second
The opening 108c is partially opened to expose the signal recording surface of the magneto-optical disk 102 and part of the chucking hub 102a to the outside of the cartridge 103.

When the disk cartridge 101 is further inserted in this state, the shutter member 106 is further moved by the pressing contact of the shutter opening operation piece 522, and the cartridge contact piece 116 of the cartridge mounting arm 11 is moved.
Comes into contact with the front surface portion 103a of the cartridge 103.

When the disc cartridge 101 is further inserted, the shutter member 106 is further moved by pressing the operation piece 522 for opening the shutter, and at the same time,
By the pressing of the cartridge 103, the cartridge mounting arm 11 resists the elasticity of the tension coil spring 12a, and the inner edge of the arm piece 113 is fixed to the window hole 6 of the slider 6.
It rotates in a state of slidingly contacting with the guide projection piece 638 of 37. After that, by further inserting the disc cartridge 101, the shutter member 106 is moved to the fully open position by the operation piece 522, and the cartridge mounting arm 11 is moved.
Is further rotated to disengage the engaging projection portion 115 at the tip of the arm piece 113 from the guide projection piece 638 of the slider 6, and the cartridge mounting arm 8 is further rotated. As shown in FIG. 14, the cartridge locking piece 114 is formed in the concave hole 103 of the cartridge 103.
is inserted into the d _2, the disc cartridge 101 starts to slide forward horizontally to the slider 6 chassis 4 by elastic force of the coil spring 12b tension is engaging the release with locked to the holder 5.

When the slider 6 is horizontally slid forward, the holder 5 is moved to the cam groove hole 621 of the slider 6.
Protrusions 524, 5 engaged with 622 and 631, 632.
25 and 534, 535, and is moved downward to approach the board surface 41 of the chassis 4,
The protrusions 412, 413 and the positioning protrusions 414, 415.
Is pressed onto the reference surface of. The cartridge 103 is attached to the protrusions 412 and 413 of the chassis 4 and the positioning protrusion 41.
The pressing force to press the 4,415 reference surface is the holder 5
Generated by the tension coil spring 12b stretched between the slider and the slider 6,
12, 413 and the positioning projections 414, 415 while being pressed against the reference surfaces, the positioning pin engaging holes 125, 12
6 is engaged with the positioning protrusions 412 and 413 and abutted on the positioning protrusions 414 and 415, and the positioning in the front-rear direction and the height direction is performed.

In this way, the disc cartridge 10
1 is mounted, and the magneto-optical disk 102 is a cartridge 1.
03 is chucked on the turntable 8 through the chucking hub 102a exposed from the fully opened central opening 108b, and the optical pickup 71 of the optical magnetic head mechanism 7 faces the first opening 108a. Two
The magnetic head 72 faces the opening 108c.

In this state, the support lever 76 of the holding device 73 is unlocked by the lock mechanism and the urging force of the torsion spring 14 causes the optical magnetic head mechanism 7 to rotate downward as the holder 5 descends. Tip 7
A suspension 77 in which 61a supports the magnetic head 72
When the magnetic head 72 is separated from the disk cartridge 101, the suspension 77 becomes free.
It will enter the opening 108c and come into contact with the surface of the magneto-optical disk 102. At this time, in this example, as shown in FIG.
As shown in FIG. 3, an engagement arm 765 is formed on the support lever 76, and an engagement tooth 765 a at the tip of the engagement arm 765 is formed.
By being engaged with the engaging gear 161 of FIG. 1 and being rotated with a required resistance, the support lever 76 is urged by the torsion spring 14 even if the holder 5 is rapidly lowered. The rotation resistance of the damper 16 prevents the holder 5 from being rapidly rotated integrally with the holder 5.
The rotation is relaxed, and the suspension 77 supporting the magnetic head 72 is gradually separated from the suspension 77. This reduces the speed at which the magnetic head 72 contacts the magneto-optical disk 102. The head 72 abruptly abuts on the surface of the magneto-optical disk 102, that is, a crack is not generated on the surface of the magneto-optical disk 102.
Damage to the magnetic head 72 itself is prevented. In this state, the magneto-optical disk 1 in the disk cartridge 101
Recording / reproduction is performed on 02.

On the other hand, in order to eject the disc cartridge 101 from the mounted state, the eject push button is operated to drive the geared motor as the eject drive mechanism 13. The slider 6 is rotated by the rotation of the geared motor.
However, the window hole 637 is slid rearward through the engagement piece 639 at the rear end so that the window hole 637 becomes the arm piece 113 of the cartridge mounting arm 11.
Corresponding to the tip of the cartridge mounting arm 1
1 is unlocked and rotated by the elasticity of the tension coil spring 12a so that the arm piece 113 projects from the window hole 637, and the inner edge of the arm piece 113 causes the slider 6 to move backward through the guide projection 638. It is pushed and slid to.

By the sliding of the slider 6 in the direction, the holder 5 is moved upward in the opposite manner to the above case, and the cartridge housing portion 501 corresponds to the cartridge insertion opening portion 20a of the front panel 20. With the upward movement of the holder 5, the support lever 76 of the holding device 73 of the optical magnetic head mechanism 72 is pushed up and rotated against the biasing force of the torsion spring 14 via the abutment screw pin 15. The tip portion 761a comes into contact with the lower surface side of the suspension 77 supporting the magnetic head 72 to push up and hold the magnetic head 7 from inside the disk cartridge 103 on substantially the same plane as the moving window portion 513 of the holder 5. Let The push-up rotation of the support lever 76 is performed by the ascending movement force of the holder 5 which is extremely large as compared with the rotation resistance force of the damper 16 with which the support lever 76 is engaged via the engagement arm 765. So it will be done without any problems.

In this state, the disc cartridge 101 accommodated in the cartridge accommodating portion 501 is pressed in the ejecting direction by the rotation of the cartridge mounting arm 11 through the cartridge contact piece 116, and the cartridge locking piece 114 is inserted into the cartridge 103. Recessed hole 103d ₂
The front panel 2 is released from the front panel 2
0 is elastically moved to the cartridge insertion opening 20a side, the rear portion is projected from the insertion opening 20a, and the rear portion is held and pulled out.

When the disc cartridge 101 is pulled out, the shutter member 106 moves from the fully open position to the closing direction by the pressure contact due to the relative movement of the locking portion of the spring member 10 to fully close each opening.

If the chassis is mounted on the main frame via the chassis 4 supporting a holder, a slider, etc., and the anti-vibration rubber legs as anti-vibration members as measures against vibration, the position of the chassis with respect to the main frame will not be stable, and the main frame will be unstable. When a shock is applied to the chassis 2, a problem of excessive transmission to the chassis 4 occurs. However, in the device 1 of the present example, as shown in FIGS. 1 and 2, the slider 6 is in a state before the operation and when the disc cartridge is ejected. Is slid rearward, and the engaging pieces 625, 635, 636 formed on the slider 6 engage with the supporting pieces 223, 233, 234 formed on the main frame 2 from the front side in a cross shape. Mutual engagement grooves 625b and 223b and 635b, 6
36b and 233b and 234b mesh with each other in an intersecting manner, whereby the chassis 4 is locked in the vertical and rearward directions via the slider 6, and the holder 5 is also engaged with the chassis 4 and the slider 6. Since the disk cartridge is in the state, the disk cartridge is held immovably and the disk cartridge can be inserted and ejected stably.

When the disk cartridge is mounted, the slider 6 is slid forward so that the engaging piece 6
25 and 635, 636 are support pieces 2 of the main frame 2.
23 and 233, 234 are disengaged from each other, and the chassis 4 is attached to the main frame 2 with anti-vibration rubber legs 31 to 31.
Since it is supported only by 34, a vibration damping effect is produced during the recording and reproducing operations of the magneto-optical disk.

Further, the chassis 4 itself has locking portions 427 and 437, and the rising locking edges 223a and 223 of the support pieces 223 and 233 formed on the main frame 2 are formed.
Even when a large impact is applied to the main chassis 2 corresponding to the front and rear and the rear of the chassis 3a, the chassis 4 is prevented from moving to the front, and hits the front panel 20 of the mechanical deck including the holder 5 and the slider 6. In addition, when the ejecting operation pin is inserted from the insertion opening 20a of the front panel 20 and the slider 6 is pressed by the manual ejecting operation, the rearward movement of the chassis 4 is prevented and the escape of the mechanical deck is prevented. The manual eject can be performed reliably.

An example of the embodiment of the present invention has been described above, but the present invention is not limited to this example. For example, the rotation for restricting the rotation of the support lever 76 of the optical magnetic head mechanism 7 can be controlled. Instead of the damper 16, a spring material, an elastic body, or the like can be used as the resistance member.

Further, the constitution, shape, etc. of each member of the above-mentioned embodiment can be variously changed without departing from the gist of the present invention.

[0095]

As described above, according to the present invention, the magnetic head, which is held by the elastic holding member and corresponds to the magneto-optical recording medium, is moved with respect to the magneto-optical recording medium on the side opposite to the optical pickup. By providing the movement resistance member to the supporting member that is brought into contact with and separated from the magnetic head, the moving operation of the supporting member becomes slow, the moving speed of the magnetic head to the magneto-optical recording medium side is moderated, and abrupt contact with the magneto-optical recording medium is performed. Contact, so-called hitting, is prevented, damage to the magneto-optical recording medium and the occurrence of cracks can be avoided, and reliable recording and reproduction can always be performed without causing errors in recording and reproduction. Improves reliability.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of a magneto-optical recording device according to the present invention.

FIG. 2 is an exploded perspective view of an example of a magneto-optical recording device according to the present invention.

FIG. 3 is a perspective view of an example of a disc cartridge holder of the magneto-optical recording device according to the present invention.

FIG. 4 is a perspective view of an example of a slider of the magneto-optical recording device according to the present invention.

FIG. 5 is a perspective view of an example of an optical magnetic head mechanism of the magneto-optical recording apparatus according to the present invention.

6 is a perspective view of a support lever of the optical magnetic head mechanism shown in FIG.

FIG. 7 is a perspective view of a disc loading mechanism of the magneto-optical recording apparatus according to the present invention.

FIG. 8 is a perspective view of a disk cartridge used in the magneto-optical recording apparatus according to the present invention as seen from above, in which A is a state in which a shutter is closed and B is a state in which the shutter is open.

FIG. 9 is a perspective view of a disk cartridge used in the magneto-optical recording apparatus according to the present invention as seen from below, in which A shows a shutter closed state and B shows a shutter opened state.

FIG. 10 is a perspective view of the disk cartridge used in the magneto-optical recording apparatus according to the present invention, as viewed from above the other side.

FIG. 11 is a side view of the main part showing the operation of the magneto-optical recording apparatus according to the present invention, showing the inserted state of the disk cartridge.

FIG. 12 is a plan view showing the operation of the magneto-optical recording apparatus according to the present invention, showing the mounted state of the disk cartridge.

13 is an enlarged cross-sectional view taken along the line AA in FIG.

14 is an enlarged plan view of part of FIG.

[Explanation of symbols]

 1 Magneto-optical recording device 2 Main frame 3 Anti-vibration member 4 Chassis 5 Disc cartridge holder 6 Slider 7 Magneto-optical head mechanism 71 Optical pickup 72 Magnetic head 73 Holding device 74 Bracket 75 Support plate 76 Support lever 765 Engaging arm 77 Suspension 8 Disc Rotating mechanism 11 Cartridge mounting arm member 14 Torsion spring 15 Abutment screw pin 16 Damper 101 Disk cartridge 102 Magneto-optical disk 103 Cartridge 106 Shutter

Claims (4)

[Claims] 1. An optical pickup, a magnetic head corresponding to the magneto-optical recording medium on the side opposite to the optical pickup, a holding member made of an elastic body for holding the magnetic head, and the holding member from below. A first position that separates the magnetic head from the magneto-optical recording medium by pressing and holding the holding member upward, and a magnetic field that separates from the holding member below the first position. A support member that is movable at a second position that brings the head closer to the magneto-optical recording medium, and a movement resistance member that restricts movement of the support member between the first position and the second position. A magneto-optical recording device characterized by the above. 2. The support member is provided so as to be rotated in a contacting / separating direction with respect to the elastic member, is rotatably biased in a direction separating from the elastic member, and is engaged with a damper as the movement resistance member. The magneto-optical recording device according to claim 1, wherein the magneto-optical recording device and the magneto-optical recording device are combined. 3. The magneto-optical recording apparatus according to claim 1, wherein a spring material is used as the movement resistance member. 4. The magneto-optical recording apparatus according to claim 1, wherein an elastic body is used as the movement resistance member.