JP3423063B2 - Drive for recording medium - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention
Disc or cartridge not stored in a cartridge
A plurality of recording media such as disks are installed in the standby section,
One of the recording media installed in the machine is selected and driven
The present invention relates to a drive device for a recording medium, and more particularly to a drive unit.
The structure of the mechanism for selecting and moving
To a recording medium drive device. FIG. 20 shows a cartridge as a recording medium.
Of a recording medium loaded with a plurality of disks D stored in
FIG. 3 is a side view showing the internal structure of the drive device (disk device).
You. In this type of disk drive, the disk drive
A plurality of cartridges C are arranged in the standby section 2 of the recording medium.
is set up. The drive unit 3 is provided in the housing 1.
Is provided. In the drive unit 3, the standby unit 2
A holder for holding the introduced cartridge C and a cart
A turntable on which the disk in the ridge C is installed,
Spindle motor that rotates this turntable
To the disk facing the disk exposed from the cartridge C.
And are mounted. The Y direction shown in FIG. 20 is a selection direction,
Standby by driving unit 3 moving in the selected direction
It faces one of the cartridges C in the unit 2. Case 1
Supports that extend linearly along the selection direction (Y direction).
Elongated holes 1a, 1a are formed and provided in the drive unit 3.
The support shafts 4 and 4 are inserted into the support slots 1a and 1a.
Have been. It can move in the X1-X2 direction inside the housing 1.
A driving lever 5 is provided which is supported in the
Step 5 is formed with stepped guide holes 6 and 6. It
Each of the guide holes is, from the top, the first parallel portion 6a and the first parallel portion 6a.
The inclined guide portion 6b, the second parallel portion 6c, and the second inclined portion
The inclined guide portion 6d and the third parallel portion 6e are formed continuously.
Have been. Each parallel part 6a, 6c, 6e is horizontal
(X1-X2 direction). To drive lever 5
For example, the rack 7 is fixed and the motor is driven by a motor.
A nonion gear 8 meshes with the rack 7 and a pinion gear
8, the drive lever 5 is driven in the X1-X2 directions.
It is. In FIG. 20, the drive lever 5 is moved in the X2 direction.
And each support shaft 4 is located in the first-stage parallel portion 6a.
You. At this time, the drive unit 3 is
The cartridge C has stopped at a position where it can be selected. Drive
When the lever 5 is driven in the X1 direction, the support shaft 4 moves to the first stage.
Is guided along the inclined guide portion 6b along the elongated support hole 1a.
Descend. The support shaft 4 is located in the second-stage parallel portion 6c
When the drive unit 3 is in the second cartridge C
Stop at the selected position. Further, the drive lever 5 is moved in the X1 direction.
When the support shaft 4 is driven to the
And the support shaft 4 is lowered into the third parallel portion 6e.
When the drive unit 3 is positioned and stopped, the drive unit 3
The selected position faces the ridge C. In this conventional example,
The guide holes 6 of the drive lever 5 have parallel portions 6a and 6a, respectively.
c, 6e are formed, and the support shaft 4 is held at any of the parallel portions.
When held, the height position in the Y direction is determined.
Drive unit to the selected position for each cartridge C
The cut 3 is positioned. [0005] The drive lever shown in FIG.
-5 has inclined guide portions 6b and 6d extending in the same direction.
Since the stepped guide hole 6 is formed,
The support shaft 4 provided in the unit 3 is connected to the first-stage parallel portion 6a.
To move from the third parallel portion 6e to the third parallel portion 6e.
Drive the same distance as the length L0 in the X1-X2 direction of the hole 6.
The moving lever 5 must be moved. Also guide
In the hole 6, the drive unit 3 is placed at the selected position of each cartridge C.
Parallel parts 6a, 6c, 6e for positioning
The length L1, L
The length L0 is very long, including the lengths of L2 and L3.
Has become. In the housing 1, move the drive lever 5 in the X2 direction.
From the dead point in the X direction to the dead point in the X1 direction by the distance L0.
Then, the movement area of the drive lever 5 is moved from the left end of the housing 1.
It extends almost all the way to the right end. Therefore, FIG.
In the case 1 having the size shown in FIG.
Becomes the limit with about 3 sheets.
When the number of selections is increased, the drive lever 5 moves in the X1-X2 direction.
The moving distance is too long, and the drive lever 5 protrudes from the housing 1.
It will come out. Therefore, the car selected in the housing 1
Increasing the number of cartridges C increases the size of the housing 1 itself
Will do. The present invention solves the above-mentioned conventional problems.
Yes, even if the moving distance of the drive member is short, many recording media
To increase the number of selected recording media or
Drive of a recording medium that can reduce the size of the entire device
It is intended to provide a moving device. [0008] [0010] [Means for Solving the Problems] Books The invention relates to a plurality of recording media.
The waiting part where the body is placed and any recording medium in the waiting part
Move in the selection direction to select the body and selected and introduced
A drive unit for driving the recording medium,
A driving member that moves in a crossing direction.
When the drive member moves in one direction, the drive member
Forward tilt to move the moving unit along the selected direction
When the guide portion and the drive member move in the opposite direction, the drive
Return slope for moving the moving unit along the selected direction
A guide section is provided continuously, and the forward path inclination guide section is provided.
Drive unit at the boundary between the
Switching guide from one inclined guide to the other inclined guide
And a drive mechanism for reciprocating the drive unit is provided.
It is characterized by having. [0011] Here, for example, the forward inclination guide section and the backward inclination.
The oblique guide section is opposite to the direction of movement of the drive member.
Or inclined at both sides,
It is formed continuously in the shape of a letter. Also, the switching guide is
For example, at the boundary between the forward slope guide section and the return slope guide section,
Of the drive unit that has moved one inclined guide
Part without moving back to the other inclined guide part
The guide passage serves as a moving guide and the urging passage. Plan
The inner passage connects the upper passage, the lower passage, and both passages, for example.
Crank shape with an inclined switching passage
It can be moved by a short distance in the same direction. [0015] [0015] [0015] [Action] Previous Scribe In the step, while the driving member moves in one direction
The drive unit is moved in the selected direction by the
Be moved. Outbound incline guide and inbound incline guide
At the boundary of, the drive unit is tilted in one direction by the switching guide.
It is reliably transferred from the inclined guide to the other inclined guide.
You. So that the drive unit is guided to the return path inclination guide
After that, move the drive member in the opposite direction.
And the drive unit continues to move in the selected direction.
Can be In this means, the driving member is reciprocated.
Therefore, the actual moving area of the driving member can be short,
The drive unit along with a large number of recording media.
Can be moved. This hand Step Then , The inclined guide portion is a driving member
A long hole or a long groove. This guide is long
In the case of a hole or slot, the slot is used as part of the drive unit.
Or pins, protrusions or rollers that slide in the long groove.
Be killed. If the inclined guide is a rail, drive
Protrusions, recesses that move along the rails as part of the unit
Parts or rollers are provided. Further, the switching guide is provided, for example, in the drive unit.
The projections provided move one of the inclined guides and
When moving to the boundary, this projection is inserted into the other guide.
In a crank-shaped switching guide passage that moves in
is there. Or from one inclined guide part to the other inclined guide
A biasing member for pushing the projection or the like toward the
It may be a spring member. Embodiments of the present invention will be described below with reference to the drawings.
You. FIG. 1 shows an example of a recording medium driving device according to the present invention.
The disassembly of the disk drive unit
FIG. 2 is a side view of the chassis shown in FIG. 1, and FIG.
(B) is a plan view of each rotating body. Figure 1 shows the vehicle
Chassis built in the enclosure of a disk drive
10 is shown. This metal chassis 10 is built in
Housing (not shown) is a so-called 1 din
Sized and buried inside the car console panel
Size. Therefore, the metal chassis 10 is
It has a limited size that can be stored inside. At the front of the chassis 10, a storage box 11
Has been fixed. The storage box 11 has a plurality of partitions.
Material 11a, the first from the upper side to the lower side
The standby portion A1 of the sixth stage to the standby portion A6 of the sixth stage are formed.
You. The recording medium used in this embodiment is cartridge C
The disk D is stored in the
It is a mini disk. In the embodiment of FIG.
It is fixed in the chassis 10. Therefore,
Embedded in the front, i.e. the console panel of the car
At the front of the housing, an insertion opening facing the vehicle interior is opened.
Each cartridge C to be a recording medium
Are inserted directly into the individual waiting areas A1 to A6 by hand.
You. The inserted cartridges are located in the waiting sections A1 to A6.
Holding mechanism using a leaf spring or the like that temporarily holds
Is provided. Further, the present invention provides a
It is not limited to the one fixed to the sheet 10, but for example
If you do not have multiple cartridges or cartridges in advance,
Magazine-type storage box 11 containing
It is loaded into the chassis 10 from the outside of the housing, and further optional
May be discharged to As shown in FIG. 1, the rear side of the chassis 10
Is a selection movement area B of the drive unit 20.
The drive unit 20 is illustrated in the selective movement area B.
Move in the vertical direction (Y1-Y2). Therefore, Y1-Y2
The direction is the selection direction of the drive unit 20 and the drive unit
In the selection direction indicated by Y1-Y2.
Select the cartridge C located in any one of the standby units.
Selected. As shown in FIG.
A knit base 21 is provided.
Inside, a mechanism base 22 is supported via dampers 23, 23.
Is held. The mechanism base 22 includes a standby unit A1 or
A cartridge C waiting inside one of A6
A cartridge holder 24 to be introduced is provided.
Introduced into the cartridge holder 24 on the mechanism base 22
The center of the disk D in the cartridge C
Turntable, which is driven to rotate
Spindle motor, exposed from the window of cartridge C
Playback operation or recording / playback
A head that performs live operation is mounted. The dampers 23, 23 have oil inside.
Which bag, such as rubber, contains highly viscous fluid or air
The shaft 22a fixed to the mechanism base 22 has
It is inserted into this bag. The mechanism base 22 is a damper
Elastically supported in the unit base 21 via the
ing. With this elastic support, body vibration etc.
Even if it acts on the unit base 21 through the
The head mounted on the base 22 is affected by vibration
It is hard to receive. Left of drive unit 20
A pair of support shafts 25 are fixed to the side surface. Previous
The left side plate 10a of the chassis 10 has a pair of support slots 1
2, 12 are drilled, and the support shafts 25, 25
It is inserted into the elongated holes 12, 12. Support slot 12,
12 extends in parallel with the selection direction (Y1-Y2 direction)
Driven by the support slots 12
Unit base 21 of unit 20 moves in Y1-Y2 direction
It is supported so that it can be moved. Although not shown in FIG. 1, the chassis 1
Similarly, the support elongated holes 12 and 12 are formed in the right side plate 10b.
The right side of the unit base 21 of the drive unit 20
Similarly, the support shafts 25, 25 provided on the right side plate 10b
It is inserted into the support slots 12,12. Therefore drive uni
The socket 20 is attached to the left and right side plates 10a and 10b of the chassis 10.
On the other hand, it is supported movably in the Y1-Y2 direction.
Become. The support slot 12 moves the drive unit 20 in the selected direction.
It has a function as a guide support for guiding
However, this guide support is not limited to the support slot 12,
It may be something. For example, in the chassis 10, Y1-
A plurality of guide support shafts or guide shafts extending in the Y2 direction are provided.
The unit base 21 of the drive unit 20 is
Guide support shaft or guide shaft can be moved in Y1-Y2 direction
May be inserted as shown. Below the drive unit 20, a first drive unit
A member 30 and a second driving member 40 are provided. Each drive
The members 30 and 40 are bent into a U-shape from sheet metal.
Slider frame or lever frame. First drive unit
The material 30 includes a left side plate 30a and a right side plate 30b,
The member 40 has a left side plate 40a and a right side plate 40b, respectively.
Formed. Bottom plate 30c of first drive member 30
Is stacked on the bottom plate 40c of the second drive member 40.
You. Then, both side plates 30a and 30b of the first drive member 30
Are inside the side plates 40a and 40b of the second drive member 40.
Layered on. And the left side plates 30a and 40a are overlapped
The left side plate 10a of the chassis 10 and the drive unit
Between the unit 20 and the left side of the unit base 21 of the unit 20
And the right side plate 30b and the right side plate 40b are overlapped.
The right side plate 10b of the chassis 10 and the unit base 2
1 between the right side plate. FIG. 1 shows the left side plate 3 of the first drive member 30.
0a, provided on the left side plate 40a of the second drive member 40.
Although a mechanism is shown for guiding the first drive unit,
Right plate 30b of member 30 and right plate of second drive member 40
40b is also provided with a similar guide mechanism.
You. Therefore, in the following, the left side plate 30a and the left side plate 40a
Explanation will be made mainly on the guide mechanism provided in
Is a structure for guiding the right side plate 30b and the right side plate 40b.
The construction is the same as that described below. First drive member
A pair of guide shafts 31, 31 is provided on the outer surface of the left side plate 30a of the pair 30.
Has been fixed. Left side plate 40a of second drive member 40
Guide holes 41, 41 are formed in the
Guide holes 13 and 13 are also formed on the left side surface 10a.
You. As shown by the assembly relation line (* 1), the guide shaft 3
1, 31 are inserted into the guide slots 41, 41
It is inserted into the inner slots 13, 13. The guide slot 4
1, 41 and the guide slots 13, 13 are in the selection direction (Y1
-Y2 direction) in the horizontal direction (X1-X1 direction) orthogonal to
It extends along. Therefore, for the chassis 10,
The first drive member 30 and the second drive member 40 are independent of each other.
Both can be moved upright in the X1-X2 directions. On the left side plate 30a of the first drive member 30,
A pair of guide holes 32, 32 are formed. Each guide
The hole 32 is formed between the first inclined guide portion 32a and the first escape portion 3.
2b are continuous. As shown in FIG.
The inclined guide portion 32a is a slanted oblique hole that is obliquely rising to the right.
The first escape portion 32b is in the selection direction (Y1-Y2 direction).
It is a straight long hole extending in parallel with. That is, the escape portion 32b
(The escape portion 42a described below) is an escape slot. Second
The left side plate 40a of the driving member 40 has a pair of guide holes 4
2, 42 are formed. Each guide hole 42 has a second
The escape portion 42a and the second inclined guide portion 42b are continuous.
Things. The second escape portion 42a is in the selection direction (Y1
-Y2 direction). Second tilt
The oblique guide portion 42b is an oblong hole that is obliquely upward and rightward.
As shown in FIG. 2, the first tilt guide portion 32a and the second tilt guide portion 32a
The oblique guide portion 42b is formed at the same oblique angle.
As shown by the assembly relationship line (* 2) in FIG.
Support shaft 2 fixed to unit base 21 of knit 20
5, 25 are guide holes 32, 32 of the first drive member 30.
Pass through the guide holes 42 of the second drive member 40
And formed on the left side plate 10a of the chassis 10 as described above.
Are inserted into the support elongated holes 12, 12. As shown in FIG.
A drive mechanism 50 is provided at a position below the storage box 11.
ing. The first driving member 30 and the second driving member 40
The drive mechanism 50 reciprocates in the X1-X2 directions.
You. The drive mechanism 50 includes a motor 51 and a motor 51.
A worm gear 52 provided on the output shaft;
A reduction gear group 53 for transmitting the rotation of the gear 52 at a reduced speed;
And a rolling element 54. The rotating body 54 has teeth around
The reduction gear 53 is a spur gear in which a portion 54a is formed.
Of the last stage is meshed with the tooth portion 54a.
ing. The rotating body 54 is positive by the power of the motor 51.
It is rotationally driven in both reverse directions. The rotating body 54 is made of a resin material.
Formed in the center of the
The shaft 55a and the lower shaft 55b protrude integrally. Upper axis
55a pivots on a bearing provided on the lower side of the storage box 11.
It is freely supported. The lower shaft 55b is connected to the first drive
Formed along the X1-X2 direction on the bottom plate 30c of the moving member 30
The formed elongated hole 33 and the bottom plate 4 of the second drive member 40
0c in the elongated hole 43 formed along the X1-X2 direction
Has been inserted. Further, the lower end of the lower shaft 55b is a shear
Around the bottom plate chassis (not shown)
It is movably supported. Each of the slots 33 and 43 is
Relief holes to prevent members 30 and 40 from interfering with lower shaft 55b
It is. On the lower surface of the rotating body 54, a first cam portion 56 is provided.
It is formed by a groove. As shown by (* 3) in FIG.
The sliding fixed to the bottom plate 30c of the first driving member 30
The protrusion 34 is inserted into a groove of the first cam portion 56.
You. When the rotating body 54 rotates, the sliding projection 34 moves to the first position.
The first drive member 30 is moved in X1-X2
Driven in the direction. A second cam portion is provided on the upper surface of the rotating body 54.
57 is formed by the groove. To the second drive member 40
Is raised from the end of the bottom plate 40c and above the rotating body 54.
The arm 40d is provided integrally with the arm 40d. In FIG.
As shown by (* 4).
The sliding protrusion 44 is inserted into the groove of the second cam portion 57.
Have been. When the rotating body 54 rotates, the sliding protrusion 44
2 in the cam portion 57, and the second driving member 40
Driven in the −X2 direction. FIGS. 3A and 3B both show the rotating body 54.
It is a plan view of
FIG. 3A shows only the second cam portion 57 and FIG.
FIG. 3B illustrates only the first cam portion 56. Figure
In each of FIGS. 3A and 3B to FIG.
The rotation angle (rotation phase) of the above with respect to the X1-X2 direction.
In the drawing, it is shown in comparison with the X1-X2 direction. Each figure
In the figure, the horizontal direction in the figure is the X1-X2 direction. FIG.
As shown in (B), the first cam portion 56 is
From the outer peripheral side to the center O of the first stage.
a, drive section 56b, second-stage arc section 56c, drive section 56
d, third-stage arc section 56e, drive section 56f and delivery
56g, and each part has a continuous groove.
Has been established. The arc portions 56a, 56c, 56e and 56g
The width center (groove center) has a radius r1,
It matches the circular arc locus of r2, r3, r4. So before
The sliding projections 34 are arc-shaped portions 56a, 56c, 56e, 5
6g and within the width (in the groove) and the rotating body 5
4 is stopped, the first driving member 30 is X1-X
Positioning in the same direction without moving in two directions
It will be in a state where it was lost. That is, the width (groove) of the first cam portion 56
The width dimension) and the outer diameter dimension of the sliding protrusion 34 are processed with high precision.
As a result, the sliding protrusion 34 moved to each of the arc portions becomes X1-
Positioning is performed in the X2 direction. This is the second
The same applies to the relationship between the
You. Further, the sliding projections 34 are provided with the driving portions 56b, 56d, 56
If it is located within any width of f (inside the groove),
According to the rotation direction of the rolling element 54, the first driving member 30
, Or in the X2 direction. As shown in FIG. 3A, the second cam 5
7 are receiving members in order from the inner peripheral side with respect to the center O of the rotating body 54.
Arc part 57a for transfer, drive part 57b, arc part of the fourth stage
57c, drive unit 57d, fifth-stage circular arc portion 57e, drive unit
57f, a sixth-stage arc portion 57g, and each portion is a groove.
Are formed continuously. Arc portions 57a, 57c, 5
The center of width (center of groove) of each of 7e and 57g is center O
For the radius locus r4, r3, r2, r1
ing. Note that radii r1, r2, and r in FIG.
3 and r4 are radii r1, r2 and r in FIG.
3 and r4 means the same distance.
You. That is, in the plan view of FIG.
And the second cam portion 57 move in the X1-X2 direction with respect to the center O.
It is a symmetric shape. The sliding projections 44 are formed by arc portions 57a, 57
Position within any width (groove) of c, 57e, 57g
And when the rotating body 54 is stopped, the second driving unit
The material 40 moves in the same direction without moving in the X1-X2 direction.
Is determined. The sliding projection 44 is driven by the driving unit 57.
b, 57d, 57f
The second drive according to the rotation direction of the rotating body 54.
The moving member 40 is driven in the X1 direction or the X2 direction. Previous
The drive unit 30 is guided by the drive members 30 and 40 to drive the drive unit.
Unit 20 is moved in the selection direction (Y1-Y2 direction).
And the cartridge holder 24 in the drive unit 20 waits.
Standby when facing any of the machine parts A1 to A6
Select one of cartridges C in sections A1 to A6
You can do it. Although not shown in FIG.
A transfer mechanism that moves in the Y1-Y2 direction together with the unit 20
Is provided. Either cartridge holder 24
When the transfer mechanism faces the standby section,
The cartridge C in the machine position is in the cartridge holder 24.
And the transfer mechanism completes the regeneration, etc.
The returned cartridge C is returned to the original standby unit. Next, the operation of the disk device will be described.
The drive unit 20 is connected to any of the standby units A1 to A4.
To move any cartridge C to a position where it can be selected
Is operated by operating the motor 51 in the drive mechanism 50.
It is done by doing. The power of the motor 51 is a worm tooth
Transmitted from the vehicle 52 to the rotating body 54 through the reduction gear group 53
You. When the rotating body 54 rotates, the first cam portion 56
The position of the first driving member 30 is controlled and the second cam 5
7 controls the position of the second drive member 40. It
The drive unit 20 is driven by the drive members 30 and 40, respectively.
The position in the selection direction (Y1-Y2 direction) is controlled. Times
When the rolling element 54 rotates in the α direction in FIG.
20 is moved in the Y1 selection direction. The rotating body 54
When the drive unit 20 rotates in the β direction, the drive unit 20
It is moved to the direction. FIG. 2 shows that the driving unit 20 is Y2
In the most moved position in the direction
4 is opposed to the first-stage (top-most) standby section A1,
It is at a position where the cartridge C in the section A1 can be selected. In FIGS. 3 to 12, the position in FIG.
When the rotating body 54 rotates in the α direction, the driving unit
A description will be given of the selective movement operation of the gate 20 in the Y1 direction. FIG.
(A) and (B) show the case where the drive unit 20 is the first stage shown in FIG.
Of the rotator 54 when moved to the selected position of the standby unit A1
The rotation phase is shown. 8 through FIG. 3 through FIG. 4 and FIG.
Is rotated approximately 180 degrees in the α direction
Turn over. Further, FIG. 8 is a starting point, and FIG.
During the movement to 12, the rotating body 54 is further turned 180 degrees in the α direction.
Turn over. That is, FIG. 3 is a starting point, and FIG.
FIG. 12 shows a 360 degree rotation in the α direction.
It shows the state that it was turned on. In this embodiment, the standby units are A1 to A
As shown by 6, six stages are provided, and six
The cartridge C is on standby, but the rotating body 54 is in the state shown in FIG.
During the 180-degree rotation from the state to the state of FIG.
Of the cartridge C in the three-stage standby portions A1, A2, A3
A selection is made. In addition, the rotating body 54 corresponds to FIGS.
During the 180-degree rotation to the state, the lower three standby units A
4, cartridges C in A5 and A6 can be selected.
You. First, the rotating body 54 is moved from the state shown in FIG. 3 to the state shown in FIG.
While rotating 180 degrees in the α direction until the state, the sliding protrusion 44
Moves the arc portion 57a for delivery of the second cam portion 57
(Sliding). The arc portion 57a is opposite to the center O of the rotating body 54.
Is a circular locus with a constant radius r4.
The second drive member 40 is not driven, and the second drive member 40
While stopped at the end position in the X2 direction (the position shown in FIG. 2)
It is. At this time, as shown by a solid line in FIG.
Second relief portion of each guide hole 42 provided in moving member 40
42a is provided in each support elongated hole 12 formed in the chassis 10.
Match. Therefore, during the transition from the state of FIG. 3 to the state of FIG.
The escape portion 42a of the second drive member 40 is provided at each support shaft 25.
Movement of the drive unit 20 in the selection direction (Y1 direction)
Will continue to be tolerated. Further, the rotating body 54 is moved from the state shown in FIG. 3 to the state shown in FIG.
During the 180-degree rotation to the state, the first driving member 30
It is driven in the X1 direction by the first cam portion 56.
You. First, in the state of FIG. 3, the sliding protrusion 34 is the first cam.
Is located at the first-stage arc portion 56a on the outermost periphery of the portion 56.
Thus, the first drive member 30 has moved to the end in the X2 direction.
You. Therefore, the first inclination formed on the first driving member 30 is
The inclined guide portion 32a is located at a position shown by a broken line in FIG.
The shaft 25 is located at the upper end of the first inclined guide portion 32a.
Guided to the position (i), the drive unit 20 moves in the Y2 direction.
It is in the highest position. At this time, the rotating body 54 stops and
The cartridge holder 24 is in the standby portion A of the first stage.
1 stops at a position where the cartridge C in the cartridge 1 can be selected. No.
The first-stage arc portion 56a of the first cam portion 56 is
From the center O of the circle. Yo
Outside the width (groove width) of the first cam portion 56 and the sliding protrusion 34.
If the diameter is formed with high accuracy, the state shown in FIG.
Positioning without sliding protrusion 34 moving in X1-X2 direction
Will be done. Therefore, the first driving member 30 is not
There is no play in the fixed state, and the drive unit 20
Can select the cartridge C in the first-stage standby section A1.
The position will be accurately determined. The drive unit 20 operates the first-stage standby section A1.
When positioned at a selectable position,
The transfer mechanism does not allow the cart in the first-stage standby section A1
When the ridge C is introduced into the cartridge holder 24,
The center of the disk D in the cartridge C is the mechanism base 2
2 is set on a turntable. This state
The turntable and the disc are driven by the spindle motor.
Rotate the disc D to perform a playback operation or the like with the head.
Can be. When playback is complete, turntable and data
Disk D is disengaged and the cartridge is
The cartridge C in the holder 24 is in the original standby portion A1.
Will be returned. In the following, the drive unit 20 is connected to another waiting unit.
At the selected position for machine parts A2, A3, A4, A5, A6
When the cartridge is positioned, the cartridge can be
The return operation is the same as described above. The rotating body 54 rotates in the α direction from the state shown in FIG.
Then, while reaching the state shown in FIG.
Is guided in the X1 direction by the driving portion 56b of the
Is driven in the X1 direction. At this time,
The first inclined guide portion 32 provided on one drive member 30
FIG. 6A is a view from the position shown by the broken line in FIG.
Is moved to the position shown in FIG.
2a, and is lowered in the Y1 direction along the support slot 12.
Can be done. When the rotating body 54 rotates to the phase of FIG.
The support shaft 25 reaches the position indicated by (ii) in FIGS.
You. At this time, the cartridge holder 2 of the drive unit 20
Reference numeral 4 faces the second-stage standby unit A2. Position shown in FIG.
When the rotating body 54 stops at, the sliding projection 34
It is located at the arc portion 56c. The arc portion 56c is at the center O
Therefore, the sliding protrusion 3
4 is constrained in the X1-X2 direction at the position shown in FIG. Yo
The first drive member 30 does not move,
20 selects the cartridge C in the second-stage standby section A2.
It is positioned at a position where it can be cut. FIG. 6 shows the drive unit 20.
Can select the cartridge C in the second-stage standby section A2.
It shows a state where it stops at the position. Further, the rotating body 54 is moved from the state of FIG.
Is rotated to the state shown in FIG.
56 is driven in the X1 direction by a driving unit 56d,
To the arc portion 56e. At the same time, the first driving member 3
0 is driven in the X1 direction, and the sliding projection 34 is a third-step arc.
At the point 56e, the first inclined guide 32a
The support shaft 25 is further lowered to the position indicated by (iii) in FIG.
Let down. The support shaft 25 reaches the position (iii)
And the cartridge holder 24 of the drive unit 20
It faces the standby part A3 of the step. When the rotating body 54 is in the state of FIG.
When stopped, the sliding protrusion 34 is positioned inside the third-stage arc portion 56f.
Stay in. The third-stage arc portion 56f has a radius with respect to the center O.
r3, the sliding protrusion 34 is
The first driving member is restrained by a three-step circular arc portion 56e.
30 is also restrained, and the drive unit 20
A3 is positioned at the position where cartridge C is selected.
You. The rotating body 54 rotates from the state of FIG. 5 to the state of FIG.
Then, the sliding protrusion 34 is driven by the driving portion 56f of the first cam portion 56.
Is guided in the X1 direction and reaches the arc portion 56g for delivery.
You. Arc part 56g is a circular locus of radius r4 from center O
The sliding protrusion 34 is formed in the circular arc portion 56.
g, while the sliding protrusion 34 and the first driving unit
The material 30 does not move any more in the X1 direction. As shown in FIG. 8, the sliding projection 34 is
Immediately after being guided to the circular arc portion 56g for the second drive member 4
0 sliding protrusion 44 is still the same half in the second cam portion 57.
Delivery arc portion 57a formed in an arc locus of diameter r4
Located within. FIG. 7 shows the rotational phase of the rotating body 54 shown in FIG.
The first drive member 30 and the second drive member 4
The position of 0 is shown. In FIG. 7, moving in the X1 direction
The first escape portion 32b of the stopped first drive member 30
Correspond to the elongated support holes 12. Also, the first inclined guide
The portion 32a is provided with the second driving member 40 which has been stopped.
Of the second inclined guide portion 42b.
You. At this time, the support shaft 25 is
A lower end of the first inclined guide portion 32a and a second driving member
At (0) at the upper end of the second inclined guide portion 42b at 40
Will be located. That is, the support shaft 25 has the first inclination.
Delivery from the guide part 32a to the second inclined guide part 42b
It is possible. The support shaft 25 is positioned at (0) in FIG.
When it reaches, the drive unit 20 is connected to the third-stage standby unit A3.
It moves to the middle of each selected position of the fourth standby unit A4. sand
That is, the state of FIG.
Is in the middle of selecting none of the cartridges
In the state of FIG. 8, the rotating body 54 does not stop, and FIG.
4 is rotating from the state of FIG. 5 to the state of FIG.
Will be shown. The rotating body 54 that rotates in the α direction
After passing through the phase of FIG.
The origin 34 is an arc formed on an arc locus having a constant radius r4.
Only slides in the portion 56g, after which the first drive
The member 30 remains stopped at the position of FIG. This stop
In the first drive member 30 in the state, the first escape portion 32b is
It corresponds to the support slot 12. Therefore, after FIG.
Is rotated in the α direction, the first relief portion 32b is
25, that is, the movement of the drive unit 20 in the Y1 direction is permitted.
Will continue to forgive. The rotating body 54 rotates in the α direction from the state shown in FIG.
Then, the sliding protrusion 44 of the second driving member 40 is
After coming out of the arc portion 57a of the cam portion 57, the drive portion 57b
It is further driven in the X1 direction. During this time, the support shaft 25 is
Of the second inclined guide portion 42b of the driving member 40 of FIG.
With the movement of the second inclined guide portion 42b in the X1 direction.
Thus, the support shaft 25 is connected to the support slot 12 (and the first escape portion).
32b), descends in the Y1 direction,
Also descends in the Y1 direction. In the state of FIG.
4 reaches the fourth circular arc portion 57c of the second cam portion 57.
When the rotating body 54 stops at the position shown in FIG.
Of the fourth stage formed in an arc locus of radius r3
The sliding projection 44 stops in the position c. Outer diameter of sliding protrusion 44
Method and the width dimension (groove width dimension) of the second cam portion 57 are highly accurate.
In the state shown in FIG.
The sliding protrusion 44 is displaced in the X1-X2 direction due to c.
Will be kept without. Therefore, X1 of the second driving member 40
9 is prevented from rattling in the X2 direction.
Is positioned at the position indicated by (iv). State of FIG. 9
Then, the drive unit 20 faces the standby unit A4 of the fourth stage
Then, the user can select the cartridge C in the standby section A4.
Swell. When the rotating body 54 further rotates in the α direction,
The sliding protrusion 44 is formed by the driving portion 57d of the second cam portion 57.
The state is guided to the fifth-stage arc portion 57e, as shown in FIG.
At this time, the support shaft 25 is moved by the second inclined guide portion 42b.
It is lowered to the position (v) in FIG. In the position of FIG.
When the rotating body 54 stops, the sliding protrusion 44 moves to the fifth circle.
The drive unit 20 is restrained by the arc portion 57e and waits for the fifth stage.
Positioned in a position where cartridge C in machine section A5 can be selected
Is Further, the rotating body 54 rotates in the α direction, and FIG.
When the sliding projection 44 is in the state shown in FIG.
Of the second inclined guide portion 4
2b, the support shaft 25 is moved to the lowermost position shown in FIG.
It is led to. When the rotating body 54 stops in the state of FIG.
Drive The drive unit 20 is a cart in the sixth-stage standby section A6.
The ridge C is positioned at a position where the ridge C is selected. Drive unit
Is moved upward in the selection direction (Y2 direction).
The operation of the rotating member 54 is the reverse of the above operation.
Are driven to rotate in the β direction. In the above series of operations, first, the first driving unit
The material 30 is moved from the position shown in FIG. 2 by the distance La in the X1 direction.
And stop at that point. Then, the second driving member 4
0 is shifted by the same distance La from the position shown in FIG.
Move and stop. The respective drive members 30 and 40 are
Starting from the position shown in FIG.
In this case, the drive unit 20 is moved to the first-stage standby portion A1.
From the selected position to the selected position with respect to the sixth-stage standby unit A6
Can be selected and moved. Conventionally, as shown in FIG.
In the example, the drive unit is selected for a 6-stage standby unit
To move the guide hole 6 to the position L0
Adds L1, L2, L3 to twice the length of La
It becomes something. Drive unit in chassis 10 of limited dimensions
It is almost impossible to move wood over such long distances
No. In the above embodiment, the driving member 30
It is sufficient that the region where the and 40 move only a short distance of La.
20 for the same number of standby positions as compared to the conventional example shown in FIG.
The following movement area should be provided. Therefore small
A large number of recording media are installed inside the chassis 10 and the housing.
That is, the cartridge C is put on standby, and all the cartridges are
It is possible to select a cartridge. In the above embodiment, the drive mechanism 50 is provided.
The first driving member 30 is driven by the single rotating body 54
The first cam portion 56 for performing the driving and the second driving member 40
A second cam portion 57 for driving is formed on both sides.
ing. Therefore, in the drive mechanism 50, a single rotating body 54
Only the rotary drive is required, and the structure is simple.
You. Also, the rotation angle of the single rotating body 54 is determined by an angle detector.
By detecting, the drive unit 20 becomes the standby unit A1.
Detecting which of the chairs A6 has reached the standby position
It is possible to That is, the rotation of the single rotating body 54
Drive unit by detecting and controlling only the rotation phase
20 can be easily controlled.
Further, in the above embodiment, the first driving member 3
0 to move the first cam portion 56 and the second drive member 40
Are formed on the front and back, and
The cams 56 and 57 are positioned with respect to the center O of the
Formed symmetrically in the moving direction (X1-X2 direction) of the moving member
Have been. Therefore, both cam portions 56 with respect to the rotating body 54
And 57 are easy to process. Also, the rotating body 54 is at 0 degree
From the 180-degree position and 360 from the 180-degree position.
The drive unit 20 moves to the selected position while rotating to the position
The distance to move to is the same. Therefore, the rotation of the rotating body 54
The movement position control of the drive unit 20 based on the angle detection is also performed.
Easy. Next, FIGS. 13 to 19 show the present invention.
Second Embodiment (Claim 1 Example corresponding to the described invention)
Is shown. In this embodiment, the second driving unit shown in FIG.
A driving member 60 shown in FIG.
14 instead of the first drive member 30 shown in FIG.
The switching guide member 70 shown is used. The drive mechanism 50
15A and 15B in place of the rotating body 54 provided in FIG.
The rotating body 80 shown in FIG. Other than the above three members
The configuration is the same as that shown in FIG. As shown in FIG.
As described above, the driving member 60 has a pair of U-shaped guide holes.
61, 61 are formed. Upper half of each guide hole 61
Is a forward diagonal guide 61a that is diagonally left-up, and the lower half is inclined.
It is a return slope guide portion 61b which is inclined downward to the left. The switching guide member 70 has a switching guide portion.
A pair of crank-shaped switching guide passages 71, 71 are formed.
Have been. Each switching guide passage 71 has an upper guide portion 71a.
A lower guide 71b is provided. Both guides 71a
71b, as shown in FIG. 16, both select directions (Y-Y
(2 directions) extending parallel to each other and moving the driving member
Direction (X1-X2 direction).
In addition, the two guides 71a and 71b
A switching guide portion 71c connecting the insides 71a and 71b is formed.
ing. First drive member 30 and second drive shown in FIG.
Like the member 40, the driving member 60 and the switching guide member 70
Are independent of each other with respect to the chassis 10 in the X1-X2 directions.
It is supported so that it can move. And shown in FIG.
Provided on the unit base 21 of the drive unit 20
The support shaft 25 has a switching guide formed on the switching guide member 70.
After passing through the passage 71, the guide hole 61 of the driving member 60
And is inserted into the support slot 12 of the chassis 10.
ing. The rotating body 80 shown in FIG.
The shaft 81 provided is a rotating support in the same manner as the rotating body 54 in FIG.
It is what is possessed. The teeth 8 around the rotating body 80
0a is formed, and the reduction gear of the drive mechanism 50 shown in FIG.
The pinion gear 53a at the last stage of the group 53 meshes with the tooth portion 80a.
And the rotating body 80 is driven to rotate in the α direction or the β direction.
You. As shown in FIG. 15A, the upper surface of the rotating body 80
A first cam portion 82 formed in a groove shape is formed, and a driving portion is formed.
Sliding projection 62 provided on the lower surface of arm 60a of material 60
Is guided by the first cam portion 82. The first mosquito
Section 82 extends through the rotation center O and in the X1-X2 direction.
15 with respect to the vertical line shown in FIG.
It is formed in a loop shape. Therefore, the rotating body 80
During the 360-degree rotation, it is guided by the first cam portion 82.
First, the sliding protrusion 62 and the driving member 60 are moved in the X2 direction.
It will reciprocate after moving and then returning in the X1 direction.
You. The first cam portion 82 includes first and sixth arc-shaped portions 8.
2a, drive section 82b, second-stage arc section 82c, drive section 8
2d, third arc portion 82e, drive unit 8 for turning back
2f, the fourth-stage arc portion 82g, the driving portion 82h, the fifth-stage
An arc portion 82i and a driving portion 82j are formed continuously.
Is what it is. Arc portions 82a, 82c, 82e, 8
The width centers (groove centers) of 2g and 82i are respectively
With respect to the center O of 0, the radii ra, rb, rc, rc, rb
Arc locus. The lower surface of the rotating body 80 is shown in FIG.
The second cam portion 83 is formed by a groove. Second
The cam portion 83 has a medium angle range smaller than 180 degrees.
An arc portion 83 formed by an arc locus having a radius rd from the center O
a and a radius r from the center O in an angle range of approximately 180 degrees.
e, an arc portion 83b formed on the arc locus, and both arc portions 8
A switching portion 83c connecting 3a and 83b is formed continuously.
Is what it is. Switching by the second cam portion 83
The sliding protrusion 72 provided on the upper surface of the bottom plate of the guide member 70
You will be guided. From the state shown in FIG.
Less than the initial 180 degrees while rotating 360 degrees
In the angle range, the arcuate portion 83a allows the sliding protrusion 72 and
And the switching guide member 70 is maintained at the position moved in the X2 direction.
You. In the subsequent rotation of the rotating body 80 in the α direction, the switching unit
83c, the sliding projection 72 and the switching guide member 70
The rotator 80
In the rotation range of about 180 degrees, the circular arc portion 83b
The sliding projection 72 and the switching guide member 70 move in the X1 direction.
Position. Next, the operation of the second embodiment will be described.
You. FIG. 15A shows the state where the rotating body 80 is in the X1-X2 direction.
When the rotation phase is as shown in FIG.
62 is an arc portion 82a of the first cam portion 82 of the rotating body 80
Located within. At this time, the driving member 60 moves in the X1 direction.
The most moved position. Therefore, the support shaft 25 is
Upper end of the forward inclination guide portion 61a of the guide hole 61 of the material 60
, And the support shaft 25 is provided in the support slot of the chassis 10.
12 at the position shown by (i). At this time,
Moving unit 20 is a cartridge in the first-stage standby unit A1.
It is in a position where C can be selected. When the rotating body 80 stops in the state shown in FIG.
The sliding projection 62 is an arc of a radius ra with respect to the center O.
Portion 82a, which is the same as the embodiment shown in FIG.
So that the sliding protrusion 62 does not move in the X1-X2 direction.
Will be retained. Therefore, the driving member 60 is restrained without moving.
Then, the support shaft 25 is positioned at the position (i),
The knit 20 removes the cartridge C in the first-stage standby section A1.
It is positioned at a selectable position. At this time, switch
The sliding protrusion 72 provided on the guide member 70 is a second cam portion.
83, and the switching guide member 70
It has been moved to two directions. Therefore, as shown in FIG.
The upper guide portion 71a of the switching guide passage 71 is
0 and the upper guide portion 71a is supported.
Selection direction of the drive shaft 25, that is, the drive unit 20 (Y1 direction)
Direction). However, the lower guide part 71b
Are displaced toward the X2 side with respect to the support slot 12. In the state shown in FIG.
When the rotating body 51 is driven in the α direction by the
The sliding projection 62 and the driving part 82b of the cam part 82
The driving member 60 is driven in the X2 direction. The sliding protrusion 62
When reaching the second-stage arc portion 82c, the driving member 60
To the position shown. During this time, the driving member 60
The support shaft 25 is supported by the forward oblique guide portion 61a.
12 and move in the upper guide portion 71a to be lowered in the Y1 direction.
Can be done. The sliding protrusion 62 moves to the second-stage arc portion 82c.
When the rotating body 80 stops at the time when the
The sliding protrusion 62 is further restrained, and the support shaft 25 is shown in FIG.
(Ii), and the drive unit 20 is in the second position.
In the position for selecting the cartridge C in the standby section A2 of the step.
It is decided. Further, the rotating body 80 rotates in the α direction and slides.
The projection 62 reaches the inside of the third-stage arc portion 82e, and at this position
When the rotating body 80 stops, the arc portion 82e similarly slides.
The moving projection 62 is restrained. At this time, the driving member 60 is further
In the X2 direction, and the support shaft 25 moves to (ii) in FIG.
It is lowered to the position shown in i) and held. At this time
The drive unit 20 is connected to the cartridge in the third-stage standby section A3.
Positioning is performed at a position where the dice C is selected. Further rotating body
When 80 rotates in the α direction, the sliding protrusion 62 becomes the first cam.
It passes through a drive unit 82f for turning back the unit 82. This
Moving direction of the sliding protrusion 62 when passing through the driving portion 82f
Is switched from the X2 direction to the X1 direction.
The starting member 62 and the driving member 60 are moved in the X1 direction. Drive
Whether the moving direction of the sliding protrusion 62 by the moving portion 82f is the X2 direction
Immediately before switching to the X1 direction, the switching guide member 70
The slide protrusion 72 provided is an arc portion of the second cam portion 83.
From 83a, it reaches the circular arc portion 83b via the switching portion 83c. This
In this case, the switching guide member 70 is moved a small distance in the X1 direction.
Driven. FIG. 18 shows that the sliding projection 62 is
2 moves to the bending point of the driving section 82f, and
The moving member 60 reaches the turning point from the X2 direction to the X1 direction.
It shows a state where it is in a state where it is not. At this time, the support shaft 25 is
61 outbound path inclination guide section 61a and return path inclination guide section 61
b. Leads to Figure 18 as above
Immediately before, the sliding portion 83c of the second cam portion 83 slides.
The protrusion 72 and the switching guide member 70 slightly move in the X1 direction.
Have been allowed. Therefore, in the state shown in FIG.
The upper guide portion 71a of the switching guide passage 71 of the inner member 70 is
The lower guide 71 is disengaged from the support slot 12 in the X1 direction.
b coincides with the elongated support hole 12. Therefore, in the state of FIG.
Means that the support shaft 25 returns to the forward path inclination guide 61a.
You will not be able to. At the same time, the lower guide 71b
Moves in the Y1 direction of the support shaft 25, that is, the drive unit 20.
Will be allowed to move. Therefore, the driving member 6 is moved from the position shown in FIG.
While the 0 is turned back and moves in the X1 direction, the support shaft 25 is returned.
Guided into the road inclination guide portion 61b,
When the drive unit 20 is moved down
Can be done. The rotating body 80 rotates in the α direction, and the sliding protrusion 62
Moves to the position of the arc portion 82g of the fourth step, and
When the rolling member 80 stops, the sliding protrusion 62 is moved to the circular arc portion 82g.
Driven without moving in the X1-X2 direction
The return shaft inclination guide portion 61b of the member 60 allows the support shaft 25
Are held at the position (iv) in FIG. At this time
The drive unit 20 is located in the standby portion A4 of the fourth stage.
The cartridge C is positioned at the selected position. More times
The rolling member 80 rotates in the α direction, and the sliding projection 62 is
When the support shaft 25 stops at the arc portion 82i, the support shaft 25
At 19, the drive unit 2 is held at the position indicated by (v),
0 selects the cartridge C in the standby unit A5 of the fifth stage.
It is positioned at the position. Then, the rotator 80 rotates 360 degrees and ends.
When the sliding protrusion 62 returns to the sixth-stage arc portion 82a, the drive
The moving member 60 reaches the end of movement in the X1 direction. That when the figure
As shown in FIG. 19, supported by the return path inclination guide portion 61b
The shaft 25 is lowered to the lowermost position indicated by (vi),
The drive unit 20 is positioned in the cartridge in the sixth-stage standby section A6.
The carriage C is stopped at a position where the cartridge C can be selected and positioned. What
Note that the drive unit 20 moves upward in the selection direction indicated by Y2.
When the rotating body 80 rotates in the β direction,
The operations of the driving member 60 and the switching guide member 70 are reverse to the above.
You. In this embodiment, the driving member 60 in the chassis 10
Is the reciprocating range of the distance indicated by La.
As a result, the drive unit 2 for six cartridges C
0 can be moved to the selected position. Therefore,
Waiting for many cartridges C in the small chassis 10
Can be made. Also in the second embodiment, the single rotating body 8
0, the drive member 60 and the switching guide member 70 are both
The structure of the drive mechanism 50 can be simplified
To detect the rotation angle of the rotating body 80, etc.
With this, it is possible to control the movement of the drive unit 20 to each standby unit.
It will be easier to do. The first embodiment and the second embodiment
In the embodiment, the guide portions are all elongated holes, but the guide portions are
It may be a groove. The switching guide in the second embodiment is
The upper guide portion 71a and the lower portion along the selection direction of the moving unit 20
Switching guide 7 that connects the two guides with the main guide 71b
1c, the switching guide is a leaf spring.
Drive between the inclined guide portions 61a and 61b
Change the moving path of a part of the moving unit (for example, the support shaft 25).
You may be able to obtain. In the first embodiment, the first driving member 3
0 and the second drive member 40 are separated by separate drive mechanisms or separate drive members.
Driving in the X1-X2 direction by a cam etc.
The driving member 60 and the switching guide member 70 are separate driving machines.
It may be driven by a frame or separate cams. Also each
The cam portions 56, 57, 82 and 83 need not be cam grooves.
Guides followers with rail cams and outer circumferences
And so on. The selected recording medium is a car
The disc may not be stored in the cartridge.
Disk is optical disk, magneto-optical disk, magnetic disk
And select a recording medium other than a disc.
It may be. As described above, according to the present invention, the drive member can be shortened.
Movement of the drive unit to a wider distance
Can be secured. Therefore, a small chassis or
Can hold many recording media in a housing. [0060]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an internal mechanism of a vehicle-mounted disk device according to a first embodiment of the present invention; FIG. 2 is a side view of an internal mechanism of the disk device shown in FIG. 3A is a plan view of a rotating body showing a second cam portion in a first-stage selection state, FIG. 3B is a plan view of a rotating body showing a second cam portion in a first-stage selection state, FIG. 4 is a plan view showing a rotating body in a second-stage selected state; FIG. 5 is a plan view showing a rotating body in a third-stage selected state; FIG. 6 is a side view of a chassis showing a second-stage selected state; 7 is a side view of the chassis showing a delivery state between the inclined guide portions, FIG. 8 is a plan view of the rotating body corresponding to FIG. 7, FIG. 9 is a side view of the chassis showing a fourth stage selection state, FIG. 10 is a plan view of a rotating body in a fourth stage selected state; FIG. 11 is a plan view of a rotating body in a fifth stage selected state; FIG. 13 is a plan view showing a rotating body in a selected state; FIG. 13 is a side view showing a driving member of a second embodiment of the present invention; FIG. 14 is a side view showing a switching guide member of the second embodiment; FIG. 16A is a plan view of a rotating body showing a first cam portion in the second embodiment, FIG. 16B is a plan view of a rotating body showing a second cam portion, and FIG. FIG. 17 is a side view of the chassis showing a first-stage selection state; FIG. 17 is a side view of the chassis showing a second-stage selection state in a second embodiment; FIG. 18 is a forward inclination guide section and a return path in the second embodiment. FIG. 19 is a side view of the chassis showing a delivery state with respect to the inclined guide portion; FIG. 19 is a side view of the chassis showing a sixth stage selection state in the second embodiment; FIG. A1 to A6 Standby section C Cartridge D Disk Y1-Y2 Selection direction X1-X2 Moving direction 10 of drive member Chassis 11 Storage box 12 Support slot 20 Drive unit 25 Support shaft 30 First drive member 31 Guide shaft 32 Guide hole 32a First inclined guide portion 32b First escape portion 34 Sliding protrusion 40 Second drive member 42 Guide hole 42a Second escape portion 42b Second inclined guide portion 44 Sliding protrusion 50 Drive mechanism 51 Motor 54 Rotating body 56 First cam portion 57 Second cam portion 60 Drive member 61a Outbound Inclination guide section 61b Return path inclination guide section 70 Switching guide member 71 Switching guide passage 71a Upper guide section 71b Lower guide section 71c Switching guide section 80 Rotating body 82 First cam section 83 Second cam section

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 17/22-17/30

Claims (1)

(57) [Claims 1] A standby unit in which a plurality of recording media are installed,
A drive unit that moves in a selection direction for selecting any of the recording media in the standby unit and drives the selected and introduced recording medium; and a driving member that moves in a direction that intersects with the selection direction. The drive member includes a forward inclination guide portion that moves the drive unit along the selection direction when the drive member moves in one direction, and the drive unit moves the drive unit in the selection direction when the drive member moves in the opposite direction. And a return path inclined guide section for moving the drive unit from one inclined guide section to the other inclined guide section at a boundary between the forward path inclined guide section and the backward path inclined guide section. A drive device for a recording medium, comprising: a guide unit; and a drive mechanism for reciprocating the drive unit.