JPH0743867B2 - Automatic loading device for recording media - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a recording medium automatic mounting apparatus capable of setting a recording medium at a mounting position by moving a pin protruding from a cartridge holder along a guide hole. Regarding

[Prior Art] In recent years, the industry related to information such as computers has been remarkably advanced, and the amount of information handled has been dramatically expanded.

For this reason, it is possible to optically record information on a disc-shaped recording medium (hereinafter referred to as a disk) at a high density or to reproduce it at a high speed by using a laser beam instead of a conventional magnetic head. Optical recording / reproducing devices are in the spotlight.

When recording information at high density or reading information recorded at high density as described above, erroneous recording or reproduction may occur if dust is present on the disk. It is stored in. In addition, this cartridge covers the recording surface (generally both sides) of the disc when it is not mounted in the recording or reproducing device, and when mounted in the device, at least the portion along the radial direction opens, and the disc rotates after mounting. By doing so, for any concentric or spiral track,
The optical pickup device is accessed so that information can be written and read.

For example, in the conventional disk mounting device proposed in Japanese Patent Application No. 59-280854, the disk cartridge is pressed and inserted along the guide path from the insertion opening, and the center hole of the inserted disk rotates the spindle motor. When it reaches a position on the axis, the disc cartridge is moved in a direction perpendicular to the insertion direction so that the center hole of the disc is fitted to the tapered outer peripheral surface of the disc guide, and then the disc clamping means is inserted from above. I used to clamp the disc rotatably.

[Problems to be Solved by the Invention] In order for the center hole of the disk to be right above the rotation axis of the spindle motor, the cartridge must be inserted far into the insertion opening. As a result, your finger may get caught in the insertion opening, or people with long nails (especially women) may have their nails bump (or get caught) during insertion.
It was sometimes difficult to insert.

Also, since the disc cartridge moves while rubbing perpendicularly to the finger, it causes discomfort to the user, and if a label is attached to the contact surface with the finger, the label will be worn off and the name etc. will disappear. There were times when it happened.

The present invention has been made in view of the above points, and an object thereof is to provide an automatic mounting apparatus for a recording medium that enables smooth mounting.

[Means and Actions for Solving Problems] In the present invention, the pin protruding from the cartridge holder is connected to the insertion direction and is inserted into the guide hole for guiding to the mounting position, and the pin is moved along the guide hole. By providing a drive mechanism, it is possible to easily and smoothly mount the device.

EXAMPLES The present invention will be specifically described below with reference to the drawings.

1 to 14 relate to the first embodiment of the present invention.
FIG. 4 is a side view of a main part of the first embodiment, FIG. 2 is a side view of a recording / reproducing apparatus having the first embodiment, FIG. 3 is a plan view of the recording / reproducing apparatus, and FIG. A front view, FIG. 5 is a bottom view of the recording / reproducing apparatus, FIG. 6 is a side view in a mounted state, FIG. 7 is a plan view in a mounted state, and FIG. 8 is a front sectional view showing a disc clamping means. 9 is a perspective view showing a disk cartridge, FIG. 10 is a side view showing a cartridge holder, FIG. 11 is a front view showing a cartridge holder, and FIG.
FIG. 14 is a front sectional view showing the magnetic field applying means, FIG. 13 is a plan view showing the magnetic field applying means, and FIG. 14 is a side view showing the magnetic field applying means.

The magneto-optical recording / reproducing apparatus 1 according to the first embodiment is a third embodiment.
As shown in FIG. 7 or FIG.
Can be fixed via the columns 3 provided at the four corners. The (device) main body 2 has a cartridge holder 7 provided with an opening serving as an insertion opening 6 for a disc cartridge 5 that accommodates a disc 4 (see FIG. 9) as a disc-shaped recording medium, as will be described later. It is attached so that it can be moved in the insertion direction.

The upper surface of the cartridge holder 7 has a substantially square or rectangular shape, and both sides thereof are bent in a U shape so that the disk cartridge 5 can be inserted. A substantially elliptical opening 8 whose insertion direction is the longitudinal direction (of the disc cartridge 5) is provided at approximately the center of the upper surface of the cartridge holder 7 so that the opening 8 faces the upper side (the disc 4). The clamp member 9 and the field coil 11 are provided so as to be able to move up and down. A spindle motor 12 (see FIG. 5) for rotationally driving the disk 4 is fixed to the apparatus main body 2 on the lower side facing the clamp member 9, and a turntable 13 (on which the disk 4 is mounted is mounted on the upper end of the rotary shaft). (See FIG. 4).

In addition, the carriage 14 to which the optical pickup (not shown) is attached is opposed to the field coil 11 by the guide rods 15, 1.
It is movably attached to 5.

A board 16 to which electronic circuit parts are attached is fixed adjacent to the carriage 14, and a carriage driving motor 17 is attached adjacent to the board 16.

A motor 18 as a drive source for auto-loading (see FIG. 4, FIG. 4, at a position substantially below the insertion opening 6 of the cartridge holder 7).
(See FIG. 5) is attached.

A base plate 19 is fixed to one side surface of the main body 2 (with the insertion direction of the disk cartridge 5 accommodating the disk 4 as the front-rear direction) with screws. In addition, in the device 1, the insertion port 6 side is described as a rear side, and the deep side of the insertion port 6 is described as a front side.

The upper end of the base plate 19 is provided with elongated holes 21 and 21 (see FIG. 4) in a support piece bent in a U shape so as to face the front and rear, and an arm 23 attached to the field coil 11 at the tip. , 23 (3rd
The other end of (see the figure), the shaft 24 is laid across the long holes 21, 21,
A shaft collar 25 is freely passed through the shaft 24, and the other ends of a pair of arms 23, 23 are pivotally supported.

Adjacent to the field coil 11, a clamp member 9 for clamping the disk 4 is attached to the tips of the pair of arms 26, 26, and the other ends of the arms 26, 26 are attached to the upper end of the base plate 19. The U-shaped support piece 27 is pivotally supported by a shaft 29 extending laterally between the elongated holes 28, 28 (see FIG. 4) with a shaft collar 31 interposed.

The shafts 32 are provided with holes in the facing portions at appropriate distances from the pivoted ends of the pair of arms 23, 23; 26, 26.
The shaft 32 is supported by projecting pieces 33, 33 on the upper surface of the cartridge holder 7. The arm 23,
The shaft collars 23a and 26a are loosely inserted between the arm 23 and the arm 26, respectively. Therefore, the shaft 32 penetrating the arms 23, 23; 26, 26 is extended to and supported by the front positions of the arms 23, 23 and the rear positions of the arms 26, 26 to support the automatic loading operation or the eject operation. Cartridge holder 7
At the same time, the shaft 32 is moved back and forth while being penetrated by the holes of the arms 23, 23; 26, 26. During the auto loading operation, the cartridge holder 7 is moved forward and then 1 /
As it descends so as to draw an arc of 4, the axis 32 also descends,
Each pair of arms 23, 23; 26, 26 is pivoted around shafts 24, 29 near the upper end of the base plate 19 as a fulcrum, and the tip ends of the arms 23, 23; The magnetic coil 11 is set close to the disk 4 so that the magnetic field required for the disk 4 in the recording or erasing mode can be applied, and the disk 4 is clamped by the center hole.
The circumference of 4A is pressed to be rotatably clamped (see FIG. 8). When the cartridge holder 7 is lifted by the eject operation from the mounted state, the shaft 32 is also lifted.
The pair of arms 23, 23; 26, 26 rotate counterclockwise (as shown in FIG. 8) about the pivotally supported shafts 24, 29 to rise,
The field coil 11 and the clamp member 9 attached to the tip end rotate and rise to the position shown in FIG.

Since the shaft 32 moves in the vertical direction without rotating, the pivot points are the long holes 21 and 28.

As described above, the field coil 11 as the field applying means is attached to the tips of the arms 23, 23 extending in the lateral direction, and the other end fulcrum is rotationally moved up and down.
The length of the arm can be shortened compared to the case where the arm is extended and installed along the insertion port direction, and it is also advantageous in terms of strength, the clamp and the magnetic field coil arm do not overlap, the structure is simple, and the depth is small. The length is short and the structure is suitable for downsizing the device.

By the way, the disc cartridge 5 has a structure as shown in FIG. 9, for example.

That is, the disc cartridge 5 that accommodates the disc 4 inside has an upper cartridge portion 35A and a lower cartridge portion 3A.
The cartridge main body 36 is formed by integrating with 5B.
The cartridge main body 36 is provided with a circular opening 37 in the center thereof so that the disk 4 can be clamped from the upper and lower sides at the time of the apparatus, and from this opening 37 to the tip side (when inserting). Recording and playback openings
38 are provided on both upper and lower sides.

Inside the openings 37, 38, a pair of scissor-shaped shutter blades 39a, 39 are formed so as to cover the surfaces of the disk 4 facing the openings 37, 38.
b is stored.

Each pair of shutter blades 39a, 39b is pivotally supported at its ends by pins 41a, 41b fixed to the rear left and right corners of the cartridge body 36, and coil springs 42a, 41b are provided near the ends.
At 42b, the pair of shutter blades 39a, 39b are urged to close each other.

On the other hand, slide grooves are provided on both sides of the cartridge body 36.
43a and 43b are provided, and hooks 44a and 44b are slidably attached to the slide grooves 43a and 43b, respectively.
4a and 44b have one ends of the wires 45a and 45b fixed respectively, and the other ends of the wires 45a and 45b via guide rollers 46a and 46b.
It is fixed to the front ends of a and 39b. Therefore, each hook 44a, 4
The shutter blades 39a, 39b can be opened around the pins 41a, 41b by sliding 4b from the state shown in FIG. 9 along the slide grooves 43a, 43b as shown by arrows A, B. Is done.

The hooks 44a, 44b project to the outside of the guide frames 7a, 7b of the cartridge holder 7, and for mounting the disc cartridge 5 on the disc cartridge 5 to be inserted,
The hooks 44a, 44b are in contact with the front ends of the guide frames 7a, 7b in a state of protruding outward to restrict movement, while the disc cartridge main body 36 side is inserted. The position moves) Slide grooves 43a, 43b
When the disc cartridge main body 36 is inserted, the pair of shutter blades 39a, 39b on the upper and lower sides of the disc 4 are opened to move relative to each other to prepare for the state where the disc 25 is clamped and recorded or reproduced. I have to.

As described above, the cartridge body 36 has positioning holes 34a, 34b for vertically penetrating both left and right sides of the front portion thereof.
Is provided.

Openings 37, 38 provided on the upper and lower surfaces of the cartridge body 36
A disk 4 having a center hole 4A between the pair of shutter blades 39a, 39b opened and closed by the pair of shutter blades 39a, 39b is housed. (See FIG. 8) By the way, an auto loading mechanism (automatic loading mechanism) for moving the cartridge holder 7 forward to automatically set the disc 4 in the loaded state is configured as follows.

Adjacent to the front and rear of the lower position of the base plate 19 and the rear portion of the lower position, both sides of the main body 2 as shown in FIGS. 1, 2, 5, 6, and 7. Axes 46,47; 46,47 are pivoted in the plane,
Gears 48, 49 having a large diameter are attached to these shafts 46, 47, and each of these gears 48, 49 has a gear 52, having a small diameter at both ends of a shaft 51 which is horizontally extended toward the lower center of both. It is meshed with 52, and by rotating the gears 52, 52,
The same gears 48, 48; 49, 49 can be rotationally driven.

As shown in the bottom view of FIG. 5, the shaft 51 is provided with a gear 53 in the middle thereof, and the gear 53 is meshed with the gear 54 attached to the rotary shaft of the motor 18 as an autoloading drive source. There is.

The motor 18 is fixed to the main body 2 via a fixing plate.

As shown in FIGS. 4 and 10, on the back surface of the cartridge holder 7, a pair of guide pieces 55, 55; There is. Each of the guide pieces 55 or 56 is provided so as to project inward from both side ends of the cartridge holder 7 so that the width of the device is not increased.

As shown in FIG. 1, FIG. 2 and FIG.
Pins 58 and 59 are respectively provided on the 5,56 so as to project outward in the horizontal direction, and the pins 58 and 59 are engaged with the long holes 61 and 62 of the gears 48 and 49 whose radial direction is the longitudinal direction. There is.

Further, the gears 48 and 49 are attached to the shafts 46 and 47, respectively, and holes are provided in portions facing one end of the shafts 46 and 47 arranged in parallel in the front-rear direction so that the shafts 46 and 47 can rotate. In this state, guide plates 63 for guiding the movement of the cartridge holder 7 are attached to each side surface of the main body 2.

As shown in FIG. 1, FIG. 2, and FIG. 6, the guide plate 63 has a straight hole portion 64 extending linearly in the horizontal front-rear direction, and a straight hole portion communicating with the straight hole portion 64 and having an angle of about 90 °. A pair of guide holes 66 consisting of an arc hole portion 65 extending in an arc shape are provided in the front and rear, and the pins 58 and 59 respectively penetrate the guide holes 66 (reference numerals 64 and 65 denote the first (Only shown in the figure). Therefore, rotate the auto loading motor 18 to
Large diameter gear 4 which rotates 52, 52 and meshes with the gear 52, 52
When the 8, 49; 48, 49 are driven to rotate, the pins 58, 59 projecting from the respective guide pieces 55, 56 of the cartridge holder 7 will move to the gears 48, 4 described above.
The guide holes 66 of the guide plate 63 can be moved by being pressed by the side walls of the long holes 61, 62 of 9; 48, 49. By moving the above guide pieces 55, 56 along the guide holes 66,
The disc cartridge 5 inserted from the insertion opening 6 of the cartridge holder 7 is moved forward together with the cartridge holder 7, and then is lowered while being rotated so that the disc 4
Can be mounted on the turntable 13 attached to the rotary shaft of the spindle motor 12.

When the cartridge holder 7 is moved forward and then is rotated and lowered, the shaft 32 supported by the projecting pieces 33, 33 on the upper surface of the cartridge holder 7 is lowered to reach the tips of the pair of arms 23, 23. The attached field coil 11 is lowered to set the lower end surface of the field coil 11 close to the disk 4 (see FIG. 12). Along with this, the clamp member 9 attached to the tips of the pair of levers 26, 26 is lowered to move the center hole 4A.
By pressing the surrounding disk surface to rotatably clamp the disk 4 and rotating the spindle motor 12, it is possible to set a mounted state in which recording, reproduction and erasing can be performed.

In the auto-loading mechanism of the first embodiment, which moves the cartridge holder 7 to guide the disk 4 to a predetermined mounting position, the gear 5 which is rotationally driven by the rotation of the motor 18 is used.
Rotating gears 48, 49; 48, 49 meshing with 2, 52, pins 68, 69 projecting on the respective guide pieces 55, 56 of the cartridge holder 7.
By moving the cartridge along the guide hole 66 of the guide plate 63, the force can be transmitted more efficiently than when the lever is rotated to drive the cartridge holder.

That is, as shown in FIG. 1 or FIG. 2, the gears 48 and 49 meshing with the rotation of the gear 52 have a constant radius (length) about their central axes 46 and 47. ) At the R position, it is rotationally driven by a force acting in a radius and a diametrical direction to reach each meshing point.
That is, the force is effectively transmitted.

The positions of the long holes 61, 62 of the gears 48, 49 in which the pins 58, 59 are engaged or the guide holes 66 of the guide plate 63 are within the radius of the center of the gears 48, 49. The pin 58, 59 can be driven with a force smaller than the rotational force for rotationally driving the 48, 49. Therefore, the driving motor 18 having a small driving force can be used, and the device can be downsized.
Further, each position on the way of moving the cartridge holder 7 is surely regulated by the rotation of the gears 48, 49, and the timing for retaining, which will be described later, can be accurately performed, and the design is easy. The operation is reliable and the reliability of the device can be improved.

Incidentally, in one embodiment, the disk cartridge 5
4 is inserted into a predetermined position, the micro switch 68 is attached near the end of the insertion opening 6 of the cartridge holder 7 as shown in FIG. When the switch lever of the switch 68 is pressed and turned on, the motor 18 is operated to guide the disk cartridge 5 together with the cartridge holder 7 in the mounting position direction of the disk 4. In addition, the micro switch 68 is fixed by threading through long holes 69, 69 whose longitudinal direction is the longitudinal direction so that the mounting position of the micro switch 68 can be adjusted (see FIG. 3).

When the loading motor 18 is activated, the guide piece
When the cartridge holder 7 is moved in the mounting direction by moving 45, 46, the disk cartridge 5 is prevented from being detached, or can be reliably guided in the mounting direction without coming off. Means are provided.

That is, as shown in FIG. 3, a pair of projecting pieces 71, 71 facing each other in the left-right direction are provided at one (left side) rear end side corner portion of the cartridge holder 7, and between these projecting pieces 71, 71. Axis 72
Is placed horizontally, and 73,74,74 are inserted from this axis to this axis 72, and
A letter-shaped retaining piece 75 is pivotally supported at one end thereof by providing a pair of bent portions 76, 76 bent downward to provide a hole through which the shaft 72 can be passed.

Rollers 78 (see FIG. 2) are provided horizontally on the bent portions 76, 76 with holes 77, 77 provided below the positions of the holes.

A protrusion 79 (see FIG. 2, FIG. 4, FIG. 6) having a substantially truncated cone shape is fixed downward near the tip of the retaining piece 75, and the tip of the protrusion 79 faces the cartridge holder. 7
It faces the hole 81 provided on the upper surface, and
When the projection 79 is rotated and lowered downward, it can be engaged with the hole 34b of the disk cartridge 5 which passes through the hole 81 and faces the lower side of the hole 81.

On the upper surface of the retaining piece 75, the other end of a leaf spring 84 provided with a locking portion 83 whose tip is bent in a semicircular shape is bent and fixed at a position near the pivot point.

On the other hand, a release piece 85 for releasing the retainer is erected on one side surface (left side) of the main body 2, the upper end side of the release piece 85 is horizontally bent, and the bent portion is (the rear part is the upper part). The slope is 86.

The slope 86 is set to a height facing the engaging portion 83 of the leaf spring 84 above the bending piece 76.

Then, when the disc cartridge 5 is not mounted (or in a state corresponding thereto), the cartridge holder 5 is (in the front-back direction) as shown in FIGS. 2 and 3.
To the left of the range of motion. In this case, the locking portion 83 at the tip of the leaf spring 84 is in a state closer than the state in which it contacts the slope 86, and the locking portion 83 is guided by the slope 86 and climbs the slope 86, and accordingly, the retaining portion The piece 75 is rotated counterclockwise in FIG. 6 to be in the state of FIG. 2 or FIG.
The projection 79 at the tip of the cartridge 75 is held in a state of being retracted outside the hole 81 of the cartridge holder 7.

Then, the disc cartridge 5 is inserted from the insertion opening 6, the tip of the disc cartridge 5 is inserted up to near the rear end of the cartridge holder 7, and the roller 78 slightly before the switch lever of the micro switch 68 is pushed to cause the leaf spring. The leaf spring 84 is turned clockwise around the shaft 72 that bends back and pivotally supports the retaining piece 75, and the projection 79 at the tip end is rotated.
Moves downward and engages with the positioning hole 34b of the disc cartridge 5 to prevent the disc cartridge 5 from coming off. In this way, when the protrusion 79 is engaged with the hole 34b to prevent it from coming off, the disk cartridge 5
The tip of the button pushes the switch lever of the micro switch 68 to turn on the switch and operate the loading motor 18. Then, the disc cartridge 5 is held in a retaining state, and the disc cartridge 5 is guided together with the cartridge holder 7 in the insertion direction.
It is rotated down and set in a predetermined mounting state.

In addition, a protrusion 87 having a small protrusion amount is attached to a position in front of the protrusion 79 at the tip of the retaining piece 75, and the leaf spring 84 is attached to the releasing piece 85.
When the projection 79 is engaged with the positioning hole 34b of the disk cartridge 5 apart from the above, the projection 87 abuts on the upper surface of the disk cartridge 5 around the hole 34b, and the disk cartridge 5 is removed as shown in FIG. Cartridge holder 7
It is held in place within.

By the way, as shown in FIGS. 4 and 7, a disc cartridge positioning base 88 is fixed to the main body 2 near the insertion opening 6, and the disc 4 is placed on the turntable 13.
In the mounted state in which the disc is clamped by the clamp member 9, the rear end side of the disc cartridge 5 is supported and the cartridge is positioned in the vertical direction.
Adjacent to 88, a micro switch 89 is mounted such that the switch 89 has its switch lever facing upward, and when the disk cartridge 5 is lowered, the switch is switched, and the energization of the operating motor 18 is cut off. It The micro switch 89 can be fixed by passing a screw through the long holes 90, 90 so that the switch can be switched when the disc cartridge 5 is in contact with the positioning base 88.

A protrusion for cartridge positioning as shown in FIG. 4 is provided at a position near both side surfaces at the back of the insertion opening 6 in the main body 2.
91, 91 are provided, and the protrusions 91, 91 are engaged with the left and right holes 34a, 34b near the tip of the disc cartridge 5 when the disc cartridge 5 is lowered, and then the stepped portions 93, 91 of the protrusions 91, 91 are provided. By 93, the tip side of the disk cartridge 5 is supported at two places, right and left.

When the disk 4 is set in the mounted state, the disk cartridge 5 is supported on the bottom surface of the cartridge by the three points as described above, but the disk cartridge 5 is elastically clamped from above as described below. Is done.

That is, as shown in FIG. 3 or FIG. 1, FIG. 2, and FIG. 7, square openings 95, 95 are provided at two positions on the left and right of the upper surface of the cartridge holder 7 near the insertion port 6, Leaf springs 96, 96 bent in an arc shape are fixed to the openings 95 with screws.

The top of the leaf spring 96, which is convex downward, is slightly higher than the upper surface of the disc holder 5 when the disc cartridge 5 is inserted into the cartridge holder 7 (see FIG. 1 or FIG. 2). When the back surface of the disk cartridge 5 in FIG. 6 is slightly lifted from the bottom surface of the cartridge holder 7 and is in a state of being supported by the positioning member, the leaf springs 96, 96 can elastically clamp from above.

The positions of elastically clamped by the leaf springs 96, 96 are two positions on the left and right sides of the insertion port 6 side, and at the position on the opposite side (left and right center) of the insertion port 6 as a magnetic field applying means. The coil 11 is elastically clamped.

As shown in FIGS. 12 and 13, the field coil 11 has, for example, three T-shaped yokes 99, along the longitudinal direction at the center of a yoke 98 whose cross section is substantially U-shaped. It is installed so that 99,99 are lined up. Then, the T-shaped yoke 99,99,
The field coils 11 covering the recording area of the disk 4 are formed by the three field coil elements 102a, 102b, 103c by winding the coils 101, 101, 101 respectively on the core part of 99, and in the recording or erasing mode, The pickup is designed to supply a current to the field coil element 102i (i = a, b, or c) facing the disk portion irradiated with the light beam so that a required magnetic field can be applied to generate heat. The amount can be reduced and the power consumption can be reduced.

The yoke 98 is fitted into the rectangular opening portion of the field coil support member 103 integrated with the arms 23, 23 at the tips of the arms 23, 23, and the elongated holes of the bent pieces 104a, 104b, 104c are formed.
105a, 105b, 105c are screwed at their tips, and are attached movably by the length of the long hole. Then York
Field coil positioning pieces 106a, 106b, 106c, which are formed in an L shape using a member such as Teflon, are fixed to both side surfaces of 98 with screws, and the field coil facing each positioning piece 106i and the upper part thereof. Coil springs 107a, 107b, 107c are provided by providing recesses in the positioning piece 106i between the support member 103,
The field coil 11 is urged downward with respect to the support member 103.

Therefore, when the cartridge holder 7 is lowered and the disc 4 is placed on the turntable 23, the positioning pieces 106a, 106b, 106c on both side surfaces of the yoke 98 are used for recording and reproduction of the disc cartridge 5 as shown in FIG. Further, the integrated yokes 98 and 99 can be placed in close proximity to the disk 3 in a state of being pressed against both side surfaces of the opening 38 having the insertion port direction as the longitudinal direction. As described above, the springs 107i are used to make the yokes 98, 99
By positioning the field coil 11 with respect to the disk 4 with the positioning piece 106i fixed to the yoke 98 pressing the upper surface of the disk cartridge 5, the field coil 11 provided with means for urging the The simple structure enables accurate positioning. Also, disk 4
In the mounted state, the disc cartridge 5 is prevented from rattling and is elastically clamped.

As described above, after the disc cartridge 5 inserted into the cartridge holder 7 is set in the state in which the disc cartridge 5 is retained in the cartridge holder 7 by the retaining piece 75 by the auto loading mechanism, the motor 18 is activated to drive the cartridge. By moving the pins 58, 58; 59, 59 provided on the guide pieces 55, 55; 56, 56 projecting on the rear surface side of the holder 7 along the guide holes 66, respectively, the disk 4 is placed in a predetermined mounting state. It can be set.

On the other hand, during ejection, the motor 18 is rotated in the opposite direction,
Each pin 58 (or 59) moves upward by rotating the arc hole portion 65 of the guide hole 66 in a clockwise direction so as to draw a 1/4 arc, and then moves the straight hole portion 64 toward the insertion opening 6 direction. become. When the cartridge holder 7 is raised along the arcuate hole 65, the clamp member 9 and the field coil 11 are raised and retracted by raising the cartridge holder 7. Further, the disc cartridge 5 is lifted together with the cartridge holder 7 so that the bottom surface of the disc cartridge 5 comes into contact with the bottom surface of the cartridge holder 7, and the disc cartridge 5 is released from the state of being elastically clamped by the leaf springs 96, 96. It

Then, when the disk cartridge 5 is moved along with the cartridge holder 7 in the direction of the insertion opening 6 by being guided by the linear hole portion 64, the locking portion 83 of the leaf spring 84 on the upper portion of the retaining piece 75 is released by the releasing piece 85. Contacting the inclined surface 86, and then climbing upward along the inclined surface 86, the projection 79 of the retaining piece 75 is separated from the hole 34b of the disk cartridge 5 at the same time, and the retaining mechanism is released. It should be noted that, at substantially the same time as the removal prevention is released, the micro switch 68 is turned off, the rotation of the motor 18 is stopped, and the cartridge holder 7 stops at the end of the movable range, but the cartridge holder 7 is free. The disc cartridge 5 is designed so that it can be projected from the insertion opening 6 by the spring force of the shutter provided in the cartridge to close it.

By the way, the turntable 13 on which the disc 4 is mounted and the clamp member 9 for clamping the disc 4 mounted on the turntable 13 have the following structures, for example.

As shown in FIG. 8, the turntable 13 has a cylindrical portion in which the upper end side is tapered to have a diameter increased so that the upper end surface can support the periphery of the center hole 4A of the disk 4. Further, on the inside, a guide cone 111 having a conical surface portion that fits into the center hole 4A is fitted to the rotary shaft 18A of the motor 18,
The coil spring 112 biases the cone 111 upward. The upper end of the rotary shaft 18A is formed with a protrusion 113 for guiding the clamp position of the clamp member 9 that is lowered from the upper side, and the retaining ring 114 of the fitted guide cone 111 is provided below the protrusion 113. Is installed.

On the other hand, the clamp member 9 has the frame member 123 attached to the clamp member fixing plate 121 attached to the tips of the pair of arms 26, 26 via the ring 122, and is engaged inside the bent portion of the frame member 123. The clamper receiving member 124 is urged downward by the coil spring 125. The clamper 126 whose upper end side flange is engaged in the recess of the clamper receiving member 124 is provided with a recess at the center of the upper end surface, and a sphere 127 is interposed between the clamper receiving member 124 and the clamper receiving member 124. On the other hand, the clamper 126 can be rotated. The clamper 126 has a plate-shaped diameter expansion on the lower end side, and a ring-shaped felt 12 on the lower end periphery.
8 is installed.

When the pair of arms 26, 26 is lowered, the clamp member 9 presses the clamper receiving member 124 by the coil spring 125, and the force for pressing the clamp receiving member 124 is a ball 127.
The disk 4 which is transmitted to the clamper 126 via the and contacts the felt 128 on the lower end surface of the clamper 126 is elastically clamped. Further, by inserting the sphere 127, the disk 4 clamped by the clamper 126 becomes rotatable with respect to the clamp receiving member 124 side.

In addition, the lower end side of the central portion of the clamper 126 is provided with a conical concave portion that engages with the protrusion 113, so that the center of the concave portion can be positioned without being eccentric with the center of the rotating shaft when descending. is there.

By the way, the mechanism for driving the carriage 14 to which the optical pickup is attached is as shown in FIG.

A small diameter gear attached to its rotating shaft by a motor 17.
The gear 132 having a large diameter is driven to rotate by being fitted into the gear 131. A rotary plate 13 forming a rotary encoder is provided on the rotary shaft.
3 is attached, and the photo-interrupters 134 arranged on both sides of the rotary plate 133 can detect the rotation angle thereof to detect the movement amount or the movement position of the carriage 14.

The shaft 135 to which the gear 132 is attached has a small diameter gear 136.
Is attached, this gear 136 is fitted with a larger diameter gear 137, the shaft 138 to which this gear 137 is attached is rotated,
Via the α-shaped belt 139 wound around a disc fixed to the shaft 138, the carriage 14 to which the end of the belt 139 is fixed can be moved along the guide rods 15 and 15 (see FIG. 5). I am doing it.

The carriage 14 is moved along the radial direction of the disk 4 (in this case, in the front-back direction) so as to traverse the concentric circular or spiral tracks of the disk 4, but the carriage 14 goes beyond the movable range. Micro switches 141, 142 (5th
(See the drawing) is provided, and when the carriage 14 is moved to the end side beyond the normal movable range, the switch lever is pressed to cut off the power supply to the motor 17.

According to the first embodiment described above, the rotation of the motor 18 causes the gear 52 to rotate, and the gear 52 meshes with the gear 52.
By rotating the gears 48 and 49 provided with 1,62,
By moving the pins 58 and 59 accommodated in the long holes 61 and 62 and engaged with the guide holes 66 and 66 of the guide plate 63 fixed to the main body 2 along the guide holes 66 and 66,
The cartridge holder 7 projecting from the guide pieces 55, 56 provided downward with the pins 58, 59 on the side portions of the bottom surface thereof is moved to automatically load the disk cartridge 5 containing the disk 4 at the mounting position. Alternatively, it can be ejected from the mounting position.

According to the first embodiment, the motor 18 is driven to rotate by simply inserting the disk cartridge 5 straight from the insertion opening 6 of the cartridge holder 7 until the tip of the disk cartridge 5 turns on the switch lever of the micro switch 68. Then, the automatic loading mechanism operates to set the disk 4 in a predetermined mounting state, so that the inconvenience in the conventional example can be eliminated.

In the first embodiment, the gear 52 and the gear 4 that meshes with the gear 52
However, the present invention is not limited to this, and a drive mechanism as shown in FIGS. 15 to 18 can be used.

In FIG. 15, a pulley 141 is attached to the shaft 51 instead of the gear 52, and pulleys 142 and 14 are also attached to the shafts 46 and 47 instead of the gears 48 and 49.
3 is installed. Then, these pulleys 141,142,143
A wire or a timing belt 144 is wound around. The pulleys 142 and 143 are provided with elongated holes 144 and 145, respectively, as in the case of the gears 48 and 49.

In FIG. 16, one wire (or timing belt) 144 in FIG. 15 is replaced with two wires (or timing belts) 147 and 148, and these wires 147 and 148 are pulleys 141 and 142 and pulleys 141 and 143, respectively. It has been passed over.

In FIG. 17, the pulleys 141, 142, 143 are connected to the roller 1 respectively.
51, 152 and 153, the rollers 151 and 152; and 151 and 153 are brought into pressure contact with each other so that the rollers 152 and 153 can be rotationally driven.

In FIG. 18, the pulleys 161 and 162 are attached to the shafts 46 and 47, and the wire 16 is attached to the pulleys 161 and 162 and the pulley 163 attached to the shaft 51.
I am passing over 4. The pulleys 165 and 166 attached to the shafts 46 and 47 are made smaller by cutting out unnecessary portions other than the portions where the long holes 144 and 145 are provided.

The operation and effect of FIGS. 15 to 18 are substantially the same.

The present invention is not limited to the above-described magneto-optical type automatic mounting apparatus, but can be widely applied to an automatic mounting apparatus for an optical recording medium. Further, the invention is not limited to the optical type and can be applied to an electrostatic capacity type or other automatic mounting device for a recording medium.

[Effect of the Invention] As described above, according to the present invention, when the cartridge storing the recording medium is inserted to the predetermined position, the automatic loading mechanism is operated to smoothly insert the recording medium into the predetermined position. Since it is guided to the mounting position, the user can perform recording or reproduction with a slight insertion operation.

[Brief description of drawings]

1 to 14 relate to the first embodiment of the present invention.
FIG. 4 is a side view of a main part of the first embodiment, FIG. 2 is a side view of a recording / reproducing apparatus having the first embodiment, FIG. 3 is a plan view of the recording / reproducing apparatus, and FIG. A front view, FIG. 5 is a bottom view of the recording / reproducing apparatus, FIG. 6 is a side view in a mounted state, FIG. 7 is a plan view in a mounted state, and FIG. 8 is a front sectional view showing a disc clamping means. 9 is a perspective view showing a disk cartridge, FIG. 10 is a side view showing a cartridge holder, FIG. 11 is a front view showing a cartridge holder, and FIG.
FIG. 14 is a front sectional view showing the magnetic field applying means, FIG. 13 is a plan view showing the magnetic field applying means, FIG. 14 is a side view showing the magnetic field applying means, and FIG. 15 is a driving mechanism in the second embodiment of the present invention. FIG. 16 is an explanatory view showing a main part of a drive mechanism according to a third embodiment of the present invention, and FIG. 17 is an explanatory view showing a main part of a drive mechanism according to a fourth embodiment of the present invention. , 18th
The drawing is an explanatory view showing the main part of the drive mechanism in the fifth embodiment of the present invention. 1 ... Recording / reproducing device, 2 ... Main body 4 ... Disc, 5 ... Disc cartridge 6 ... Inserting slot, 7 ... Cartridge holder 9 ... Clamping member, 11 ... Field coil 18 ... Motor, 19 ...... Base plate 23,26 …… Arm 46,51 …… Axis, 48,49,52 …… Gear 55 …… Guide piece, 58,59 …… Pin 61,62 …… Slot, 63 …… Guide plate 66 …… Guide hole, 68 …… Micro switch 75 …… Retaining piece, 79 …… Projection 84 …… One leaf spring, 85 …… Release piece

Claims (1)

[Claims] 1. A recording medium mounting device for moving a cartridge holder for holding a cartridge containing a recording medium to set the recording medium at a predetermined mounting position, when the cartridge is inserted to a predetermined position. A switch to turn on is provided, a pin is provided on the cartridge holder so that the pin is engaged with a guide hole provided on a fixing member, and a long hole provided on the inner peripheral side of a rotary plate having an outer peripheral portion as a drive portion. The recording medium, which is set in a predetermined mounting position by rotating the rotary plate by the rotation driving means that is turned on by the switch and moving the pin along the guide hole. Automatic mounting device.