JP3551606B2 - Disc loading device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disc loading apparatus for recording and reproducing information on and from a disc using light.
[0002]
[Prior art]
Optical disk devices are widely used as audio disks, video disks, and data storage devices for computers. 2. Description of the Related Art As personal computers as well as AV equipment have been miniaturized, thinner optical disc apparatuses have been desired.
[0003]
Generally, in an optical disk device, after inserting a disk cartridge into the device, it is necessary to move the cartridge in the direction of a spindle motor and an optical pickup, chuck the disk on a turntable, and make the disk recordable or playable. . Hereinafter, a conventional disk loading mechanism of such an optical disk device will be described with reference to the drawings. An example is disclosed in JP-A-5-205381.
[0004]
FIG. 15 is a perspective view showing the structure of a disk loading mechanism of a conventional optical disk device, and FIG. 16 is a side view showing the operation thereof.
[0005]
15 and 16, the cartridge 1 is inserted into the cartridge holder 2 from the front of the apparatus. At this time, the slide shutter 1a of the cartridge 1 is slid by the link mechanism incorporated in the cartridge holder 2 to expose the recording / reproducing portion of the disk. On both side surfaces of the cartridge holder 2, there are four guide rollers 3, which are inserted into guide grooves 5 provided on both side surfaces of the slider 4, and are provided on guide poles 8 implanted in the chassis 6. Along, so as to be movable only up and down by a dimension d.
[0006]
The slider 4 is shaped so as to sandwich the cartridge holder 2 from below, and is slidably mounted in the direction of arrow A by a dimension S along a guide pin 7 implanted in the chassis 6. The slider 4 is always pulled in the direction A by the slider spring 9 with respect to the chassis 6, and in the initial state, the slider 4 is locked by the lock arm so that the slider spring 9 stops at the most extended state. The lock arm is released by being pushed by one corner of the cartridge when the cartridge 1 is inserted. When the lock arm is released, the slider 4 slides in the direction A by the slider spring 9, the guide roller 3 moves along the guide groove 5, and the cartridge holder 2 moves in the direction of the chassis 6 (arrow B). Move by dimension d. When the cartridge is lowered, the disc is mounted on the turntable 12 provided on the spindle motor 11 and chucked, and approaches the optical pickup 13 to a distance at which recording and reproduction can be performed.
[0007]
When the cartridge is taken out of the apparatus, the slider 4 is pulled back by the loading motor 16 against the pulling force of the slider spring 9, the guide roller 3 moves along the guide groove 5, and the cartridge holder 2 is in the initial state. Ascend to position. As a result, the disk is separated from the turntable, and the cartridge can be taken out.
[0008]
[Problems to be solved by the invention]
However, the conventional loading device for a disk device as described above has the following problems. That is, once the cartridge is inserted horizontally, it is lowered in the direction of the spindle motor, so that the disc is placed on the turntable, and the optical pickup is ready for recording and reproduction. Over the entire area, the thickness of the dimension D becomes an empty space. Other components such as a motor control circuit cannot be arranged in this space, and it becomes a dead space in the device. For this reason, there is a limit in reducing the thickness of the device.
[0009]
Further, it is impossible to directly load a single disc such as a music CD or an information CD-ROM, and it is necessary to put the disc in a cartridge called a caddy. Operation becomes complicated.
[0010]
The present invention has been made to solve the above-described problems, and enables a reduction in the thickness of the entire apparatus without creating a large dead space in the apparatus, and also enables loading of a disk cartridge and a disk unit, and also allows horizontal loading. An object is to provide a loading device that can be used in a vertical position.
[0011]
[Means for Solving the Problems]
In a drive device for recording and reproducing data on and from a disk, the drive device constitutes a forward / backward-moving holder, and the holder has an insertion window through which a disk cartridge and a disk unit are inserted in front of the holder in the advancing direction, and is parallel to the advancing direction of the holder. A pair of holding mechanisms for guiding and holding the disk cartridge and the disk unit are provided on both sides, and an opening and closing mechanism for opening and closing the shutter of the disk cartridge is provided at the rear of the holder. After the disk cartridge and the disk alone are once held in the holder, they are drawn into the drive together with the holder. The shutter opening / closing mechanism provided at the rear of the holder completes the opening operation of the shutter before the leading end of the disk cartridge passes through the disk clamp.
[0012]
Since the shutter is already opened when passing through the disk clamp portion, the set positions of the disk motor and the clamp can be set close to each other, so that the relative movement of the disk motor, the clamp and the disk cartridge during the clamp operation can be small. There is no need to escape the entire thickness of the disk cartridge with a clamp, and a thin drive can be configured.
[0013]
In addition, it has the function of holding the disk cartridge and the disk alone in the holder, so there is no need to put the disk alone in the caddy, and it is held without falling down even if the disk is placed vertically, so it can be used in a horizontal or vertical position Is also possible.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a disk loading device according to an embodiment of the present invention will be described with reference to the drawings. FIGS. 1A and 1B are three views showing a disc loading apparatus of the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a front view, FIG. 1C is a side view, and FIG. FIG. 2 is a perspective view of a holder which is a main part of the present invention. 3 and 4 are partial perspective views showing the internal structure of the holder of the present invention.
[0015]
In FIG. 1, reference numeral 1 denotes a drive housing, and the internal structure of the drive will be briefly described. Reference numeral 2 denotes a disk motor integrated with the turntable, which is fixed on the elevating base 3, and when the disk is loaded, moves up and down and the disk is mounted on the turntable. Reference numeral 4 denotes a clamp which is configured to clamp the disk 11 in conjunction with the lifting and lowering of the disk motor. Numeral 7 is fixed to a traverse by an optical head, and can be arbitrarily moved in a disk radial direction by a feed shaft 5 and a traverse motor 6.
[0016]
Reference numeral 10 denotes a disk cartridge in which a disk 11 is housed. Reference numeral 12 denotes a shutter which slides in a direction perpendicular to the traveling direction to expose a recording surface or a reproduction surface of the disk.
[0017]
Reference numeral 100 denotes a holder whose outside is guided by a guide 101 provided inside the drive. A holder drive motor 102 has a pinion gear 103 attached to a drive shaft. Reference numeral 104 denotes a rack gear attached to the lower surface of the holder, which meshes with the pinion gear 103 to advance or retract the holder.
[0018]
FIG. 2 shows a perspective view of the holder. In FIG. 2, the entire holder has a rectangular cylindrical shape that wraps the disk cartridge, and the cylindrical end surface has an insertion window 100c into which the disk cartridge is inserted.
[0019]
In the insertion window 100c, on the lower surface of the holder parallel to the disk, an arc-shaped projection 100d was formed, which coincides with the center of the disk at the disk holding position and has substantially the same radius as the disk. In addition, a concentric circular pattern 100e was formed.
[0020]
On the side surface, a guide surface 100g is provided with a hole 100a from which the projection 109b of the cartridge holding member 109 projects (the cartridge holding member will be described later).
[0021]
A notch 100h into which the optical pick is inserted and moved is provided on the lower surface of the holder parallel to the disk.
[0022]
The upper surface of the holder parallel to the disk is provided with a notch 100i in order to eliminate interference between the disk clamp and a human hand when inserting the disk alone.
[0023]
The rear end face as viewed from the insertion window 100c is cut away leaving a thin connecting portion 100j.
[0024]
Further, a shutter opening / closing mechanism is provided near the rear end face. 1 and 2, the shutter opening / closing mechanism includes a shutter opener 105, an opener shaft 106 provided at a back angle of the holder 100, and a rotation spring 107. One end of the shutter opener 105 is connected to the opener shaft by a rotation spring. When the disc cartridge is inserted into the holder by the spring force, the tip of the shutter opener is held at the position A where the tip of the shutter opener is engaged with the cut portion of the shutter. Further, when the disk cartridge is inserted, the disk cartridge rotates to the position B against the spring force of the rotary spring. The shutter is completely opened. When the disk cartridge is removed, the disk cartridge returns to the original position A by the rotation spring force. An opener release pin 8 is provided inside the drive, and presses the rear end of the opener 105 at the final end of the traverse.
[0025]
On the inner side surface of the holder, a holding mechanism for guiding and holding the disk cartridge and the disk alone is provided so that the disk containing the disk cartridge and the disk alone, that is, the disk without the disk cartridge can be mounted respectively.
[0026]
The holding mechanism for guiding and holding a disk cartridge and a single disk will be described in detail with reference to the drawings. 3 and 4 are partial perspective views showing the internal structure of the holder. 1, 3 and 4, reference numeral 108 denotes an axis, which is provided at the back of both sides of the holder 100. Reference numeral 109 denotes a cartridge holding member, one end of which has a hole 109c which lightly engages with the shaft 108, the other end thereof has a projection 109a which engages with the notch 10a of the cartridge toward the center side, and a notch window 100a of the holder which is opposite to the protrusion 109a. A protrusion 109b that penetrates the guide notch 101a inside the drive (see FIG. 2) is formed. Reference numeral 110 denotes a cartridge guide member, one end of which has a hole 110a for lightly engaging with the shaft 108 and a notch 110b for avoiding interference of the cartridge holding member 109, and the other end has a long arm shape so as to reach the front insertion window. The tip is provided with an inclined portion 110c that widens outward. Further, a groove 110d having a width slightly larger than the disk thickness of the disk alone is provided in parallel with the traveling direction, and the groove depth is set at the center position of the disk in the held disk cartridge and on the center line perpendicular to the traveling direction. The shallow portion 110e is formed at two places at the same distance from the center line of the disk, and the groove width is large and gradually narrows in the inclined portion 110c. A groove 110f is formed.
[0027]
A cut 110g into which the disc stopper member 112 is inserted and a hole 110h into which the stopper shaft 111 is engaged are formed substantially in the center. A rotary spring 114 acts relatively between the cartridge holding member 109 and the cartridge guide member 110 so that the cartridge holding member moves toward the center.
[0028]
Reference numeral 111 denotes a stopper shaft which is firmly fitted into a hole 110h provided in the cartridge guide member 110. Reference numeral 112 denotes a disk stopper member. A hole 112a is provided at a substantially central portion thereof and is lightly engaged with the stopper shaft 111. One end in contact with the holder 100 is rounded, and the other end in contact with the outer periphery of the disk is slightly widened and rounded. Into the notch 110g at the center of the cartridge guide member 110 together with the stopper rotation spring 113 so that the end 112c that comes into contact with the outer periphery of the disc moves inward between the disc stopper member and the cartridge guide member. Power is acting. A point on the disk circumference on a line passing through the held center of the disk and the center of the stopper shaft is in contact with one end of the disk stopper member, and the other end of the disk stopper member is in contact with the holder.
[0029]
A spring 115 is provided between the holder 100 and the cartridge guide member 110 and acts to move the cartridge guide member toward the center. Further, a stopper 100b for regulating the position of the cartridge guide member 110 is provided in the holder 100. A guide member release pin 9 is formed on the lift base, and moves the cartridge guide member outward when the disc is mounted.
[0030]
In FIG. 2, reference numeral 100f denotes a small-diameter disk holding plate, the details of which will be described with reference to FIGS.
[0031]
FIG. 5 shows a state in which a normal-size disk 11 is held, and FIG. 6 shows a state in which a small-diameter disk 11a is held.
[0032]
5 and 6, the small-diameter disk holding plate 100f is a portion that is bent at a symmetrical position with respect to the center of the disk to be held so that a part of the holder can be bent. The small-diameter disk holding plate 100f has a rectangular cut-out hole 100k whose short width is the disk regulation width of the disk cartridge and whose long width is the chord length of the arc of the small-diameter disk at the bending position. The small-diameter disk 11a is inserted into the hole 100k so that the small-diameter disk 11a is aligned with the center of the disk in the disk cartridge and is held. The bending structure of the holder is arranged only in the deep half 100 m of the part to be bent. This is because when the small-diameter disk 11a is inserted into the square cut 100k, the front end face of the disk holding plate 100f is easily spread, and the small-diameter disk is easily mounted.
[0033]
One embodiment of the bending structure is shown in FIGS. In FIG. 9, 100p is a square shaft provided on the end surface of the small-diameter disk holding plate 100f. 100q is a lower shaft support of a V-shaped groove provided on the holder side, and 100r is a similar upper shaft support, and a plurality of them are alternately arranged. Reference numeral 100t denotes a convex portion for preventing movement in the axial direction. The holder has a concave portion 100u which fits with the convex portion 100t to prevent movement in the axial direction. 100s is an escape hole of 100q. It is a configuration that can be easily created by molding. Pressure bonding is performed in the direction of arrow B. FIG. 7 shows an AA cross-section joined by pressure bonding, and FIG. 8 shows a cross-section in a state of being bent by 90 degrees, in which a square axis is rotated by 90 degrees. The two positions of 0 ° and 90 ° become stable positions due to the bending of the vertical shaft support.
[0034]
Operation of the embodiment
The operation of the disk loading device configured as described above will be described with reference to FIG. 10, FIG. 11, FIG. 12, and FIG.
[0035]
a) Loading operation of disk cartridge
In FIG. 10, first, the tip of the disk cartridge 10 is placed on the arc-shaped projection 100d (state a). Next, it is inserted into the insertion window 100c. The leading end of the cartridge guide member 110 comes into contact with the inclined portion 110c that widens outward and the corner of the leading end of the cartridge 10. The inclined portion 110c is pushed outward by the disk cartridge and retreats outward (state b). The cartridge guide member 110 takes the maximum displacement, and the disk cartridge is inserted. At this time, the stopper member 112 is driven to rotate and stored inside the cartridge guide member 110 because the stopper shaft 111 provided on the cartridge guide member 110 moves outward and one end thereof is in contact with the holder 100. It does not hurt the insertion of the cartridge (state c). Next, the tip of the shutter opener 105 is joined to the notch of the shutter of the disk cartridge. When the disc cartridge is further pushed in, the shutter opens. Then, the projection 109a of the cartridge holding member 109, which engages with the notch 10a of the cartridge, passes over the side surface of the leading end of the disk cartridge. At that time, the projection 109b on the opposite side passes through the cutout window 100a of the holder and engages with the cutout 101a of the guide inside the drive (state d). Although a force that pushes the disk cartridge or a reaction force of the spring of the shutter opener is applied to the holder, the operation of opening the shutter is ensured because the holder cannot move. When the disc cartridge is further pushed in, the shutter is completely opened, and the projection 109a of the cartridge holding member 109 engages with the notch 10a of the disc cartridge. At this time, the projection 109b on the opposite side comes out of the notch 101a of the guide inside the drive, and comes into contact with the guide side surface of the original holder (state e). FIG. 11 shows a vertical sectional view of this state.
[0036]
FIG. 11 is a sectional view taken along line AA of FIG. The shutter opener 105 and the thin connecting portion 100j of the holder are formed in the upper and lower planes of the bridge 10b of the shutter portion of the disc cartridge, and the distance d between the turntable 2 of the spindle motor and the clamp 4 is smaller than the thickness Db of the bridge. It is configured slightly wider by d. The shutter is fully opened before passing through the clamp.
[0037]
The operation in the holder is completed, and in the next operation, the pinion gear 103 of the holder drive motor 102 meshes with the rack gear 104 attached to the lower surface of the holder, and the holder is pulled in (state f). At this time, the position of the projection 109b of the cartridge holding member 109 is regulated by the guide 101 inside the drive, and the projection 109a is engaged with the notch 10a of the cartridge. Therefore, the disk cartridge is completely held in the holder. I have.
[0038]
Thereafter, the disk motor 2 fixed on the lifting base 3 and integrated with the turntable is raised and lowered, and the clamp 4 is lowered in conjunction with the lifting and lowering of the disk motor, the disk 11 is mounted, and the loading operation is completed.
[0039]
The operation of taking out the disk cartridge is performed in a completely reverse route to these operations, and the disk cartridge may be taken out from the state of (e) by hand.
[0040]
b) Loading operation of a single disk (disk without disk cartridge)
In FIG. 12, the disk unit 11 is inserted into the insertion window 100c. First, the outer periphery of the disc alone contacts the tip of the shutter opener 105 (state a). As the shutter opener is further inserted, the shutter opener is pressed and rotated, and comes into contact with the inclined portion 110c which becomes wider toward the outside of the tip of the cartridge guide member 110, and the outer periphery of the disc alone. Since the groove 110f is formed in the inclined portion 110c such that the groove width is large and gradually narrows, the disk is inserted along the groove 110f (state (b)).
[0041]
When the disk is further inserted, the groove 110d having a width slightly larger than the disk thickness of the disk alone is provided in parallel with the traveling direction, so the disk alone is inserted along the groove and the holding height is regulated. The depth of the groove is such that the center line perpendicular to the advancing direction at the position coinciding with the center of the disk in the held disk cartridge is the deepest, and the shallow portion 110e is located at an equal distance from the center line. The cartridge guide member 110 is retracted outward against the reaction force of the spring 115 so that the shallow portion 110e passes over the outer periphery of the disk (state c). When the cartridge is further inserted, the cartridge guide member 110 returns to the original state again at the middle point of the shallow portion 110e, that is, the position coinciding with the center of the disk in the disk cartridge, and stably holds the disk alone. This is because if the disc is inserted further into the back, the shallow portion must be crossed again, and the disc is returned by the reaction force of the spring. The opener 105 is further driven to rotate. At a position where the disk alone is stably held, the stopper member 112 is in contact with a point on the disk circumference on a line passing through the center of the held disk and the center 111 of the stopper shaft, and one end 112c of the disk stopper member 112. Since the other end 112b of the disk is in contact with the holder, the stopper member cannot be driven to rotate, and the disk cannot be inserted further deep even if a large external force is applied to further insert the disk (d in FIG. Status).
[0042]
The operation in the holder is completed, and in the next operation, the pinion gear 103 of the holder driving motor 102 meshes with the rack gear 104 attached to the lower surface of the holder, and the holder is pulled in. At the final end, the contact between the opener 105 and the disk unit 11a is released by pressing the rear end of the opener 105 against the opener release pin 8.
[0043]
Thereafter, the disk motor 2 fixed on the elevating base 3 and integrated with the turntable moves up and down, and the guide member release pin 9 formed on the elevating base moves the cartridge guide member 110 backward, and the disk unit 11a and the cartridge The contact of the guide member 110 is released. The clamp 4 linked with the lifting and lowering of the disk motor descends, the disk 11 is mounted, and the loading operation is completed (state e).
[0044]
The operation of taking out a single disk is performed in the reverse route of these operations, and the disk cartridge may be taken out from the state of (d) by hand.
[0045]
c) Loading operation of small diameter disc alone
When inserting the small-diameter disk unit 11a in FIG. 13, first, the small-diameter disk holding plate 100f in the state of (a) is folded by hand in the direction of arrow A to the state of (b). When the small-diameter disk unit 11a is inserted, the outer periphery of the small-diameter disk unit 11a contacts the small-diameter disk holding plate 100f (state (c)). When further inserted, since the bending structure 100m is disposed only in the back half of the portion to be bent, the front end face of the small-diameter disk holding plate is pressed by the outer periphery of the disk and bends, and the distance between the pair of small-diameter disk holding plates is wide. Thus, a small-diameter disk can be mounted. At the same time, the opener 105 is driven to rotate on the outer periphery of the small-diameter disk (state d). When further inserted, the small-diameter disk holding plate 100f is provided with a square cut-out hole 100k having a chord length of the arc of the small-diameter disk at the bending position, where the short width is the disk regulation width of the disk cartridge and the long width is provided. The small-diameter disk 11a is inserted into the square cut hole 100k, and the small-diameter disk 11a is held in alignment with the center of the disk in the disk cartridge. The opener 105 is further driven and rotated around the outer periphery of the small-diameter disk (state e). FIG. 6 shows a state in which the small-diameter disk 11a is held.
[0046]
The operation in the holder is completed, and in the next operation, the pinion gear 103 of the holder driving motor 102 meshes with the rack gear 104 attached to the lower surface of the holder, and the holder is pulled in. At the final end, the rear end of the opener 105 is pressed against the opener release pin 8 to release the contact between the opener 105 and the small diameter disk unit 11a.
[0047]
Thereafter, the disk motor 2 fixed on the elevating base 3 and integrated with the turntable moves up and down, and the guide member releasing pin 9 formed on the elevating base moves the cartridge guide member 110 backward. The clamp 4 linked with the lifting and lowering of the disk motor is lowered, the small-diameter disk unit 11a is mounted, and the loading operation is completed (state f).
[0048]
The operation of taking out the small-diameter disk unit is performed in the reverse direction of the above operation, and the small-diameter disk unit 11a is taken out by hand from the state shown in (c), and then the small-diameter disk holding plate 100f is returned to the original state by hand. .
[0049]
【The invention's effect】
As is clear from the above embodiment, as shown in FIG. 11, the present invention is configured such that the opener 105 and the thin connecting portion 100j of the holder are formed in the upper and lower planes of the bridge 10b of the shutter portion of the disc cartridge, and the shutter is clamped. Since it becomes possible to open by the time of passage, the distance d between the turntable 2 and the clamp 4 of the spindle motor does not need to be slightly larger than the disc cartridge thickness Dc, but is slightly larger than the bridge thickness Db by Δd. Only requires a small amount of movement of the disk motor and the clamp, and the thickness of the drive can be reduced. In addition, energy savings can be achieved because less energy is required.
[0050]
A holding mechanism that guides and holds the disk cartridge and disk unit is provided on both sides of the holder, so that a disk with a disk cartridge can be directly loaded even with a disk alone, which is a cumbersome and cumbersome operation that uses a caddy. The operability can be greatly improved without performing. No need to worry about caddy storage.
[0051]
Further, since the disk cartridge or the disk alone is once held in the holder and then pulled into the drive together with the holder, it can be used in a horizontal or vertical position as shown in FIG.
[0052]
In the insertion window 100c formed in the holder, an arc-shaped projection 100d is formed on the lower surface of the holder parallel to the disk, which is in the same position as the disk center of the disk holding position and has substantially the same radius as the disk, and has a concentric circular pattern 100e. With this configuration, when inserting the disk cartridge, it is not necessary to accurately position the disk cartridge in the insertion window and insert the disk cartridge, and the arc-shaped projection can be inserted as a guide, thereby facilitating the insertion operation. In addition, when inserting the disk alone, it is possible to prevent the arc-shaped projection from interfering with the disk and accidentally pushing the disk all the way. The design and appearance are also good. The strength of the holder also increases.
[0053]
A stopper member 112 is provided on the cartridge guide member 110. The stopper member 112 is in contact with a point on the disk circumference on a line passing through the center of the held disk and the center 111 of the stopper shaft and one end 112c of the disk stopper member 112. Since the other end 112b is in contact with the holder, the stopper member cannot be driven and rotated, and the disk cannot be inserted further even if a large external force is applied to insert the disk further. Dangerous erroneous operations can be prevented, and the operational feeling is good.
[0054]
The small-diameter disk holding plate 100f has a molded structure in which a part of the holder can be bent at a symmetrical position of the center of the disk to be held, so that no space is required, the number of components is not increased, and an inexpensive small-diameter disk can be used.
[0055]
Since the folding structure of the holder is disposed only in the inner half 100m of the bent portion, when the small-diameter disk 11a is inserted into the square cut 100k, the front end face of the disk holding plate 100f is easily spread, and the small-diameter disk is easily mounted. become.
[Brief description of the drawings]
FIG. 1 is a perspective view of a disk loading device according to an embodiment of the present invention;
FIG. 2 is an external perspective view of a holder according to one embodiment of the present invention.
FIG. 3 is a perspective view of the internal structure of the holder according to the embodiment of the present invention (in a state of using a single disk).
FIG. 4 is a perspective view showing the internal structure of the holder according to the embodiment of the present invention (in use of a disc cartridge).
FIG. 5 is an enlarged perspective view of a small-diameter disk mounting portion of the holder (in a state where a normal disk is mounted).
FIG. 6 is an enlarged perspective view of a small-diameter disk mounting portion of the holder (in a state where the small-diameter disk is mounted).
FIG. 7 is a cross-sectional view of the bent structure portion of the small-diameter disk holding plate (in a planar state)
FIG. 8 is a sectional view of a bending structure of a small-diameter disk holding plate (bending state).
FIG. 9 is a perspective view of a bent structure of a small-diameter disk holding plate.
FIG. 10 is an explanatory diagram of a loading operation of a disk cartridge.
11 is a sectional view taken along line AA of FIG.
FIG. 12 is an explanatory diagram of a loading operation of a single disk.
FIG. 13 is an explanatory diagram of a loading operation of a small-diameter disc alone.
FIG. 14 is an external perspective view of a drive device according to an embodiment of the present invention.
FIG. 15 is a perspective view of a conventional disk loading mechanism.
FIG. 16 is a side view of a conventional disc loading mechanism.
[Explanation of symbols]
1 Drive enclosure
2 Disk motor
3 lifting platform
4 Clamp
5 Feed axis
6 traverse motor
7 Optical head
8 Opener release pin
9 Guide member release pin
10 disk cartridge
11 disks
12 Shutter
100 holder
101 Guide
102 Holder drive motor
103 pinion gear
104 rack gear
105 Shutter opener
106 Opener shaft
107 Rotating spring
108 axes
109 Cartridge holding member
110 Cartridge guide member
111 Stopper shaft
112 Stopper member
113 Stopper rotating spring
114 Rotating spring
115 spring

Claims (9)

In a drive device for recording and reproducing data on and from a disc, a holder that is moved forward and backward by the drive device, an insertion window provided in the front of the holder in the direction of travel of the holder, into which a disc cartridge and a disc alone are inserted, and both sides parallel to the direction of travel of the holder A disc cartridge or disc to be inserted, comprising: a holding mechanism for guiding and holding a pair of disc cartridges and a disc alone provided on a surface thereof; and an opening and closing mechanism for opening and closing a shutter of the disc cartridge provided at a rear portion of the holder. A disk loading device wherein a single unit is once held in a holder, and then drawn into the drive together with the holder. 2. The disk loading device according to claim 1, wherein the shutter opening operation is completed by a shutter opening / closing mechanism provided at a rear portion of the holder before the leading end of the disk cartridge passes through the disk clamp portion. The holding mechanism for guiding and holding the disk cartridge and the disk unit provided on both side surfaces parallel to the traveling direction of the holder includes a holding portion contacting the outer periphery of the disk at two points and an elastic body for applying a force in the disk center direction. 2. The disk according to claim 1, wherein the center position is determined by utilizing the outer peripheral shape of the disk unit, the disk center position in the disk cartridge is made to coincide with the center position of the disk unit, and the disk escapes outward when the disk cartridge is inserted. Loading device. The holding mechanism for guiding and holding the disk cartridge and the disk unit provided on both side surfaces parallel to the traveling direction of the holder includes an axis provided at the back of both sides of the holder, as viewed from the insertion window of the holder, and a shaft. A cartridge holding member having a projection which is lightly engaged and engages with the notch of the cartridge toward the center side, and a projection which engages with the notch of the guide inside the drive through the notch window of the holder on the opposite side; In the same way, it is a long arm that gently engages with the axis and reaches the insertion window on the front, the tip of which has an inclined portion that widens outward and a groove that has a width slightly larger than the disk thickness of the disk alone is parallel to the traveling direction The groove depth is the deepest at a position on the center line perpendicular to the traveling direction at the center position of the disk in the held disk cartridge. A cartridge guide member having two shallow portions joined to the outer periphery of the disk unit at equal distances of the core wire, and a groove guide having a gradually increasing groove width at the inclined portion; 4. The apparatus according to claim 3, further comprising a leaf spring or a rotary spring acting between the first and second cartridge guide members to move the cartridge guide member toward the center, and a stopper for regulating the position of the cartridge guide member. Disk loading device. A stopper shaft, a disk-shaped disk stopper member whose both ends are lightly engaged with the stopper shaft, a notch into which the disk stopper member is inserted substantially at the center of the cartridge guide member, and a gap between the disk stopper member and the cartridge guide member. A stopper pivot spring that acts, a point on the disc circumference on a line passing through the center of the held disc and the center of the stopper shaft is in contact with one end of the disc stopper member, and the other end of the disc stopper member is in contact with the holder. 5. The disc loading device according to claim 4, wherein A release pin having a narrow tip and a thick root rises and descends in synchronization with the elevation of the disk motor, pushes and expands the cartridge guide member, widens the space between the left and right cartridge guide members, and frees the disk alone. Item 6. The disk loading device according to Item 4. At the symmetrical position of the center of the disc to be held, a part of the holder is made to be bendable, and the short width is the disc regulation width of the disc cartridge, and the long width is the chord of the arc of the disc at the bending position. 2. The disc loading apparatus according to claim 1, wherein the disc loading apparatus has a square cut-out hole having a length, inserts a single disc into the square cut, and aligns and holds the disc with the center position of the disc in the disc cartridge. 8. The disc loading device according to claim 7, wherein the folder has a bent structure that is disposed only in a back half of a portion to be bent. In the disc cartridge insertion window provided in the holder, an arc-shaped projection that is aligned with the center of the disc at the disc holding position, has substantially the same radius as the disc, is formed on the face of the holder parallel to the disc, and has a concentric circular pattern. The disk loading device according to claim 1, further comprising:

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