JP3207648B2 - Information recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In recent years, magneto-optical disks, optical disks, and the like have been widely used as recording media stored in cases. These information recording / reproducing apparatuses for recording / reproducing information on / from a magneto-optical disk, an optical disk, and the like are designed to mount a disk by a so-called front loading method.
The schematic configuration of the conventional information recording / reproducing apparatus will be described below.

In the conventional information recording / reproducing apparatus, as shown in FIG. 34, a head arm 107 having a recording head 108 fixed to one end is rotatably mounted, and a pickup (not shown) and a driving mechanism for driving the pickup. The chassis 104 on which the
It is fixed to. The frame 103 is provided with a holder 101 for holding and fixing the disk 109, a mode switching lever 102 for switching modes, and a rotating lever 106 for rotating a head arm 107.

The holder 101 has four pins 101a.
Are provided at these locations, and these pins 101a.
As shown in FIG. 5 (a), after being inserted into the grooves 102b.
3 are inserted into substantially L-shaped grooves 103a. The mode switching lever 102 is provided with four pins 102a at four positions.
are inserted into the above-mentioned grooves 103a. Thereby, the holder 101 and the mode switching lever 102
Has been positioned.

The mode switching lever 102 is connected to the gear 11
1 and 112 and the driving force of the loading motor 105 transmitted through the rack 102e.
9 can be moved in the direction of arrow P which is the mounting direction and in the direction of arrow Q which is the opposite direction.

[0006] One end 106a of the rotating lever 106
Are inserted into substantially L-shaped grooves 102c formed in the mode switching lever 102, and the other end 106b of the rotating lever 106 is, as shown in FIG. It is in contact with the contact portion 107b. The rotating lever 106 is connected to the mode switching lever 102.
It rotates in conjunction with the movement of the object.

In the above configuration, for example, the disk 109
Is inserted in the direction of arrow P, the loading motor 10
5 is driven, and the mode switching lever 102 moves in the direction of arrow P. The holder 101 also moves in the direction of arrow P in conjunction with the movement of the mode switching lever 102. That is, the pins 101a... Of the holder 101 and the pins 102a... Of the mode switching lever 102 move from the retrievable position shown in FIG. Then, it reaches the intermediate position shown in FIG.

Next, when the mode switching lever 102 further moves in the direction of arrow P, the pin 10 of the holder 101 is moved.
1a are end faces 103a ₁ of the grooves 103a and the grooves 102 formed on the mode switching lever 102.
b and moves downward, and reaches the reproducible position shown in FIG. As a result, the holder 101 moves downward, the disc 109 is mounted, and the disc 109 can be reproduced. Note that the rotating lever 106 is
As shown in FIG. 36A, one end portion 106b pushes down the contact portion 107b of the head arm 107, so that the recording head 108 moves upward.

When the mode switching lever 102 further moves in the direction of arrow P, the holder 101 is held at the same position, while one end 106a of the rotating lever 106 is held.
Is a groove 102 formed in the mode switching lever 102.
are moved upward by being guided by the end faces 102c _{1 of} c.
The recording position reaches the recordable position shown in FIG. Accordingly, the rotating lever 106 rotates, and the pressed state of the contact portion 107b of the head arm 107 is released as shown in FIG. For this reason, the recording head 108 can move in a substantially horizontal direction and record on the disk 109.

As described above, in the conventional information recording / reproducing apparatus, the mode switching lever 102 is moved in the directions of arrows PQ by the driving force of the loading motor 105, and the holder 1 is moved in conjunction with the movement of the mode switching lever 102.
01 is moved in the direction of arrows PQ.
Then, in order to reciprocate the holder 101 between the retrievable position and the reproducible position or the recordable position, the holder 101 is moved by a distance longer than the radius of the disk 109, for example.

[0011]

However, in the above conventional information recording / reproducing apparatus, the loading motor 105
The mode switching lever 102 is moved by the arrow P-
The holder 101 is moved in the Q direction, and the holder 101 is moved in the direction of the arrow PQ in conjunction with the movement of the mode switching lever 102. In order to reciprocate between the modes, the amount of movement of the mode switching lever 102 must be increased. That is, since the amount of movement of the mode switching lever 102 must be substantially equal to the amount of movement of the holder 101, it is difficult to reduce the size of the apparatus.

Since the mode switching lever 102 is moved by the driving force of the loading motor 105,
There is a problem that the positioning accuracy of the mode switching lever 102 is reduced.

Since the holder 101 is moved in the direction of arrow PQ by the driving force of the loading motor 105 via the mode switching lever 102, the driving of the loading motor 105 is not possible, for example, at the time of a power failure. If this is possible, the disk 109 cannot be removed from the device. For this reason, for example, there is a problem that the operability of the device at the time of a power failure or the like is low.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to reduce the size and simplification of an apparatus and to improve the reliability and operability of an information recording / reproducing apparatus. It is to provide a device.

[0015]

According to a first aspect of the present invention, there is provided an information recording / reproducing apparatus, wherein a transporting means for mounting a recording medium comprises: a position at which the recording medium can be taken out; In an information recording / reproducing apparatus provided so as to reciprocate with a drivable position, a recordable mode and a reproducible mode, which are drivable modes of a recording medium, and a take-out mode, in conjunction with the movement of the transporting means. Mode switching means for moving to each predetermined position corresponding to an intermediate mode between the possible mode and the drivable mode to switch the mode, detecting means capable of detecting the position of the mode switching means, and moving the mode switching means in a predetermined direction. When the mode does not correspond to the position of the mode switching means detected by the detecting means, the mode switching is performed to a position corresponding to the mode. It is characterized in that it comprises a moving means for moving the stage.

According to a second aspect of the present invention, there is provided an information recording / reproducing apparatus according to the first aspect, wherein the moving means is capable of taking out a recording medium from a drivable position. It is characterized by being moved toward a position.

According to a third aspect of the present invention, there is provided an information recording / reproducing apparatus according to the first or second aspect, wherein the recording medium is moved from a drivable position to a removable position. And a recording medium moving means for restricting the movement of the mode switching means and the operation of the moving means when the movement operation of the recording medium is completed.

According to a fourth aspect of the present invention, there is provided an information recording / reproducing apparatus according to the third aspect, wherein the detecting means comprises means for moving a recording medium by a recording medium moving means. It is characterized in that the completion of the operation can be detected.

[0019]

[0020]

[0021]

[0022]

[0023]

[0024]

[0025]

[0026]

According to the first aspect of the present invention, the position of the mode switching means urged in a certain direction by the urging means is detected by the detecting means, and the detected position of the mode switching means corresponds to the mode. If not, the mode switching means is moved to a position corresponding to the mode by the moving means. The mode switching means interlocks with the movement of the transporting means, and each of the predetermined modes corresponding to the recordable mode and the reproducible mode, which are the drivable modes of the recording medium, and the intermediate mode between the takeout mode and the drivable mode. Move to the position and switch the mode.

Therefore, when the recording medium is moved from the removable position to the drivable position, the mode switching means may be moved to a predetermined position corresponding to any of the recordable mode and the reproducible mode. For this reason, the mode switching means does not have to be stopped at a predetermined position corresponding to, for example, the reproducible mode when the recording medium is moved, so that the mode switching means can be simplified. Further, the urging force of, for example, the moving urging means provided for moving the recording medium to the drivable position is hardly restricted.

According to the second aspect, the moving means moves the recording medium from the drivable position to the removable position. As described above, since the mode switching means and the recording medium are moved by the moving means, the number of components can be reduced, and the apparatus can be further reduced in size and simplified.

According to the third aspect of the present invention, the recording medium is moved from the drivable position to the retrievable position by the recording medium moving means, and when the moving operation of the recording medium is completed, the mode switching means is moved. Further, the operation of the moving means is regulated. As described above, when the movement operation of the recording medium is completed, the position of the mode switching means can be reliably regulated by the recording medium moving means, so that the mode switching means can be regulated to an appropriate position. Can be improved in reliability.

According to the configuration of the fourth aspect, the position of the mode switching means and the completion of the recording medium moving operation by the recording medium moving means are detected by the detecting means. This allows
The number of parts can be reduced, and the device can be further reduced in size and simplified.

[0031]

[0032]

[0033]

[0034]

[0035]

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

【Example】

Embodiment 1 FIGS. 1 and 2 show an embodiment of the present invention.
The following is a description based on 0. In the following description, it is assumed that the disc recording / reproducing apparatus as the information recording / reproducing apparatus according to the present embodiment can drive, reproduce, and / or record each disc as two different types of recording media.

First, each of the above disks will be described. Each of the above-mentioned disks is, for example, shown in FIGS.
This is a digital audio optical disk as shown in FIG.
As shown in FIG. 19, the first disk is a recordable / reproducible disk 43 including a substantially rectangular parallelepiped plate-shaped case 41 and a disk main body (recording medium) 43a. Case 41c and lower case 41d
And is rotatably stored between them. The lower case 41d has an insertion hole 41e through which a turntable described later is inserted.
Is provided. Note that a lead-in area 43b and a lead-out area 43c in which information on the disk main body 43a itself and the like are recorded in advance on the inner peripheral part and the outer peripheral part of the data recording area on the disk main body 43a.

An identification hole 41f indicating that the disk 43 is a recordable / reproducible disk is provided at one corner of the lower case 41d, and information recorded on the disk body 43a by preventing so-called overwriting. Is formed. In addition, the above-mentioned protection hole 4
1g is provided with a claw portion 41h for opening and closing the protection hole 41g. When the protection hole 41g is closed by the claw portion 41h, recording on the disk main body 43a is enabled, and when the protection hole 41g is opened, recording is performed. Becomes impossible.

A clamping plate (not shown) made of a magnetic material is provided between the upper case 41c and the disk main body 43a, and is attracted when a magnet approaches to chuck the disk main body 43a on a turntable. It is supposed to. That is, when the turntable is inserted into the inside of the disk 43 through the insertion hole 41e, the magnet provided on the top of the turntable and the clamping plate attract each other, and if the disk 43 is fixed, the disk The main body 43a is driven to rotate integrally with the turntable.

Further, the case 41 is provided with a slider 42 formed in a substantially U-shape so as to sandwich the upper case 41c and the lower case 41d. Slider 4 above
2 is reciprocally movable in the directions of arrows AB (described later), and when the disk 43 moves in the direction of arrow A in the disk recording / reproducing apparatus, the arrow B is moved by the slider opening / closing mechanism of the disk recording / reproducing apparatus. It is to be moved in the direction.

When the slider 42 is moved in the direction of arrow B, a window 41b provided in the upper case 41c and
The window 41a provided in the lower case 41d is opened to expose the disk main body 43a, and the lower disk surface of the disk main body 43a and the pickup face each other, while the upper disk surface of the disk main body 43a and the recording head are mutually opposed. opposite. The information is recorded on the disk body 43a by the interaction between the pickup and the recording head, while the information is recorded on the disk body 43a by the pickup.
The information recorded in a is reproduced. That is, the disk main body 43a is a magneto-optical disk, and is recorded and reproduced by a magnetic field modulation method.

As shown in FIG. 20, the second disk is a reproducible disk 46 comprising a substantially rectangular plate-like case 44 and a disk body (recording medium) 46a.
The disk body 46a is rotatably stored between the upper case 44c and the lower case 44d. The lower case 44d has an insertion hole 44e through which a turntable is inserted.
Is provided. A clamping plate (not shown) made of a magnetic material is provided between the upper case 44c and the disk body 46a. Note that a lead-in area 46b and a lead-out area 46c are provided in the inner and outer peripheral portions of the data recording area on the disk body 46a. A hole 44f is formed in one corner of the lower case 44d at a position corresponding to the protection hole 41g of the disk 43, indicating that the disk 46 is a non-recordable disk.

The lower case 44d of the case 44 is provided with a slider 45. Slider 45 above
Is reciprocally movable in the direction of arrow AB, and is moved in the direction of arrow B by the slider opening / closing mechanism when the disk 46 moves in the direction of arrow A in the disk recording / reproducing apparatus. . Slider 45 is arrow B
When moved in the direction, the window 44a provided in the lower case 44d is opened to expose the disk body 46a, and the lower disk surface of the disk body 46a and the pickup face each other. Then, the information recorded on the disk body 46a is reproduced by the pickup. That is, information is recorded on the disk main body 46a by pits formed by irregularities during molding of the disk.

Next, a description will be given of a disk recording / reproducing apparatus as an information recording / reproducing apparatus which can use the above-mentioned disks 43 and 46. In the disk recording / reproducing apparatus according to the present embodiment, as shown in FIGS. 1 to 3, a chassis 1 constituting a frame of a disk recording / reproducing apparatus main body is mounted inside a cabinet 34 (FIG. 17) described later. .

Disks 43 and 46 (hereinafter referred to as disk 43)
Is placed on a holder (transporting means) 3 and moves to a loading position (a drivable position) which is a recordable position and / or a reproducible position of the disk 43. It has become. Therefore, the holder 3 is positioned between the loading position and the disk 43.
Can be reciprocated between an unloading position, which is a position where the camera can be taken out.

In this embodiment, the direction in which the disk 43 moves from the unloading position to the loading position is referred to as the arrow A direction, and the opposite direction is referred to as the arrow B direction. In addition, the right direction toward the moving direction of the disk 43 to the loading position (the direction of the arrow A) is referred to as an arrow C direction, the left direction is referred to as an arrow D direction, and the rotation axis direction of the disk 43 is referred to as a vertical direction.

In the chassis 1, the information recorded on the holder 3, the mode switching lever (mode switching means) 2, the holder support angles 4.5, the spindle motor 20, and the disk 43a of the disk 43 can be reproduced. A pickup 23, a feed motor 26 for moving the pickup 23, and the like are attached.

As shown in FIG. 3, a spindle motor 20 is mounted substantially at the center of the rear surface of the chassis 1. The spindle motor 20 includes a disk 43
A substantially cylindrical turntable 20a for rotationally driving is mounted rotatably so as to protrude toward the surface of the chassis 1. Incidentally, the turntable 20a includes a magnet (not shown) as a recording medium holding means for chucking the disk 43. The above magnet fixes and holds the disk 43 located at the loading position to the holder 3.

A first guide shaft 21 and a second guide shaft 22 are mounted on the rear surface of the chassis 1 so that the axial direction is in the direction of arrow CD. That is, the first and second guide shafts 21 and 22 are parallel to each other. And the first guide shaft 21
Penetrates a through hole 23 a of the pickup 23, while the second guide shaft 22 is sandwiched by a concave portion 23 b of the pickup 23. Therefore, the pickup 23
Is positioned by the first and second guide shafts 21 and 22, and is slidable in the direction of arrow CD, so that the disk body 43a of the disk 43 can be scanned. In addition, the above pickup 2
Reference numeral 3 is provided such that the objective lens 23c projects toward the surface of the chassis 1.

Further, a part of the main control circuit 36 and a drive circuit 37 of the spindle motor 20 are provided on the rear surface of the chassis 1.
a (which will be described later) is mounted on the circuit board 52.

As shown in FIG. 11, a substantially L-shaped head attachment angle 25 is attached to the end of the pickup 23 in the direction of arrow A. One end 25a of the head mounting angle 25 is the pickup 2
3 and the other end 25b projects upward, that is, toward the surface of the chassis 1. A support shaft 32 is fixed to the end portion 25b of the head mounting angle 25 so that the axial direction is in the direction of the arrow CD. A head operation lever 28 is mounted on the support shaft 32. The head operation lever 28 is vertically rotatable about the support shaft 32 as a rotation center.

One arm 28a of the head operation lever 28 extends substantially in the direction of arrow B, and has a recording head mounting arm 30 having a moderate elasticity at the end thereof.
Is attached. The above recording head mounting arm 3
A recording head (recording means) 29 is provided at the leading end of the recording head 0, and the recording head 29 is attached to a position facing the objective lens 23c of the pickup 23 in a recordable state. Therefore, the recording head 29 is connected to the pickup 23 via the recording head mounting arm 30, the head operation lever 28, the head mounting angle 25, and the like. Accordingly, the recording head 29 and the pickup 23 are integrally moved in the directions of arrows CD by the driving force of the feed motor 26. The arm 2 of the head operating lever 28
8 a is constantly urged downward by a spring 31 provided on a support shaft 32.

The other arm 28b of the head operating lever 28 extends substantially in the direction of arrow A, and its upper surface abuts against a head mode switching shaft 8 described later, thereby positioning the head operating lever 28. ing. As shown in FIGS. 1 and 3, the head mode switching shaft 8 has a fixing hole 2j of the mode switching lever 2.
・ It is inserted at 2k (to be described later), and the axial direction is arrow C
It is fixed to be in the −D direction.

As shown in FIG. 11, the upper surface of the arm portion 28b has a smooth upper surface 2a.
8c, 28d, and 28e. For this reason, the arm 28a faces slightly upward when the upper surface 28c of the arm 28b is in contact with the head mode switching shaft 8, as shown in FIG. ), The upper surface 28d is in a substantially horizontal direction (substantially in the direction of arrow A) when the upper surface 28d is in contact with the head mode switching shaft 8, and as shown in FIG. When it is in contact with the shaft 8, it is slightly downward. When the arm 28a rotates in the vertical direction, the recording head 29 also moves in the vertical direction.

That is, the recording head 29 is
In a state where the upper surface 28c is in contact with the head mode switching shaft 8, the upper surface 28c is disposed at a position not in contact with the disk 43,
When the upper surface 28d is in contact with the head mode switching shaft 8, the disk 43 is disposed at a position where the disk main body 43a of the disk 43 can be reproduced. It is arranged at a recordable position on the disk main body 43a.

It should be noted that the recording head 29 is
In the state where it is arranged at a position where recording can be performed on the disc 43, the disc 43 enters the inside of the upper case 41c from the window portion 41b provided in the upper case 41c of the disc 43, and contacts the disc main body 43a or is in a position where there is almost no gap It is getting closer to. When a disk 46 having no window provided in the upper case 44c is placed on the holder 3 instead of the disk 43, the recording head 29 has an elastic recording head mounting arm 30 in the upward direction. As a result, the disk is not pressed against the disk 46.

The upper surfaces 28c and 28d of the arm 28b
28e is parallel to the direction of the arrow AB, which is the moving direction of the head mode switching shaft 8, when in contact with the head mode switching shaft 8. For this reason,
Even if a slight error occurs in the movement amount of the head mode switching shaft 8, the position and the distance of the recording head 29 with respect to the disk main body 43a do not change.

As shown in FIGS. 1 to 3, the chassis 1
Is mounted on a side surface in the direction of the arrow C through a mounting member 27 so as to be capable of normal and reverse rotation. A drive shaft 26 a of the feed motor 26 is parallel to the first guide shaft 21. Has become. Drive shaft 26
A spiral groove is formed in a, while a grip 24 having a protrusion that engages with the above-described groove is attached to the pickup 23 in the vicinity of the through hole 23a. The grip 24 is pressed against the drive shaft 26a by a spring or the like (not shown).

As described above, the grip 2 is inserted into the groove of the drive shaft 26a.
Since the projections 4 are engaged, the feed motor 26 is driven, and when the drive shaft 26a rotates, the driving force of the feed motor 26 is transmitted to the grip 24. Therefore, the drive shaft 26a
The grip 24, that is, the pickup 23 slides in the direction of the arrow C or the direction of the arrow D according to the rotation direction of. The feed motor 26 can freely adjust the amount of rotation of the drive shaft 26a, and enables the pickup 23 to scan the disk main body 43a.

As shown in FIG. 4, substantially U-shaped bent portions 3b and 3c are provided on both side ends of the holder 3 in the direction of arrow CD so as to face each other. The bent portions 3b and 3c form the insertion portion of the disk 43. Further, a total of four guide members 3a... For guiding the movement of the main body of the holder 3 in the directions of arrows AB are provided at predetermined positions at both end portions of the holder 3.

At both ends of the chassis 1 in the directions of arrows CD, holder holder angles 4
5 are provided so as to face each other. As shown in FIG. 6, the holder support angle 4 provided at the side end in the direction of arrow D is provided with a mounting portion 4d for mounting a disk recording / reproducing apparatus main body inside a cabinet (information recording / reproducing apparatus housing) 34. 4d, guide holes 4a for guiding the vertical movement of the holder 3, and guide holes 4b for guiding the movement of the mode switching lever 2 in the directions of arrows AB. A board mounting portion 4e for mounting an angle board 10 described later is formed at a side end of the holder support angle 4 in the direction of arrow A so as to extend in the direction of arrow C. The eject lever 13 is provided at a predetermined position of the substrate mounting portion 4e.
A mounting pin 4f for mounting (described later) is provided.

As shown in FIG. 7, the holder supporting angle 5 provided at the side end in the direction of arrow C is provided with mounting portions 5 d for mounting the disk recording / reproducing apparatus main body inside the cabinet 34 and the holder 3. Guide holes 5a, 5a for guiding the vertical movement, guide holes 5b for guiding the movement of the mode switching lever 2 in the directions of arrows AB, and a loading rack 19 described later are vertically sandwiched, and the loading is performed. Guide plates 5e and 5f for guiding the movement of the rack 19 in the directions of arrows AB are provided.

Attachment part 4 for holder support angles 4.5
The d, 4d, 5d, and 5d are mounted at predetermined positions inside the cabinet 34 via elastic bodies 9 such as vibration-proof rubber. That is, the chassis 1 has the holder support angles 4.
5, the elastic body 9 is attached to a predetermined position inside the cabinet 34. Even if vibration or impact is applied to the disc recording / reproducing apparatus main body from the outside, the vibration or impact is applied to the elastic body 9 or the like. .. To attenuate or cut off.

As shown in FIG. 17, the cabinet 34 has a substantially rectangular parallelepiped appearance, and has an insertion opening 34a large enough to insert a disk 43 on the front surface thereof. The insertion port 34a is provided at the bent portion 3b of the holder 3.
Communicating with the insertion portion of the disk 43 formed by 3c; An eject key (switching means moving means) 33 which is pressed in the direction of arrow A when the disk 43 inside the cabinet 34 is taken out of the apparatus is provided near the insertion port 34a. Eject key 33 above
Is constantly urged in the direction of arrow B by a spring or the like (not shown). The eject key 33 is provided for the cabinet 3.
4 further inward (in the direction of arrow A) than the front of
The operation surface 33a can be pushed in. still,
The eject key 33 will be described later in detail.

As shown in FIG. 5, the mode switching lever 2 is provided between the holder supporting angles 4.5. Protrusions 2f and 2g are provided at both end portions of the mode switching lever 2 in the directions of arrows CD.
Springs (biasing means) 6 and 7 are provided between the projections 2f and 2g and the mounting portions 4d and 5d of the holder support angles 4.5.
Is attached. Therefore, the mode switching lever 2 is constantly urged in the direction of arrow B by the springs 6 and 7. The projections 2f and 2g are inserted into the guide holes 4b and 5b of the holder support angles 4.5. Therefore, the mode switching lever 2 is movable in the direction of the arrow AB, but the holder supporting angle 4.
The movement in the vertical direction is restricted by the guide holes 4b and 5b. The mode switching lever 2 is moved in the direction of arrow AB by a loading motor 15 described later.

Guide grooves 2a for guiding the vertical movement of the holder 3 are formed at predetermined positions at both end portions of the mode switching lever 2 in the directions of arrows CD. These guide grooves 2a are sized so that the guide members 3a of the holder 3 can be inserted.
It is formed so as to go from the upper side in the direction to the lower side in the direction of arrow A.

The guide members 3a of the holder 3 are
After being inserted into the guide grooves 2a of the mode switching lever 2, the guide holes 4a of the holder support angles 4.5 are provided.
Inserted in ... For this reason, the holder 3 is guided by the guide holes 4a,..., 5a.

Although not shown, the slider 42 of the disk 43 is moved in the direction of arrow B when the disk 43 mounted on the holder 3 moves in the direction of arrow A to a predetermined position near the holder support angle 5. Let the windows 41a and 4
A slider opening / closing mechanism for opening the disk 1b to expose the disk body 43a is provided.

As shown in FIG. 5, the mode switching lever 2 has fixing holes 2j and 2k for fixing the head mode switching shaft 8, and a projection 21 for switching the first mode detection switch 11. A projection 2m for switching the second mode detection switch 12,
The convex portion 2 for positioning the eject lever 13
n. The lower end surfaces 2b and 2d of the mode switching lever 2 are attached to the upper end surfaces 1a and 1a of the chassis 1, respectively.
Notches 2c and 2e corresponding to the protrusions 1b and 1b (described later) formed on 1a are formed.

As shown in FIG. 8, the mode switching lever 2 has a lower end surface 2b in contact with a corresponding upper end surface 1a of the chassis 1 at a side end in the direction of arrow C, but not shown. , At its side end in the direction of arrow D, the lower end surface 2 d is the corresponding upper end surface 1 a of the chassis 1.
It is provided so as to be interviewed. The mode switching lever 2 moves in the direction of the arrow AB by the protrusions 1b and 1b of the chassis 1 contacting the end surfaces 2h and 2i of the notches 2c and 2e in the direction of the arrow AB. The amount is regulated. That is, the mode switching lever 2 can move in the arrow A direction until the end face 2h contacts the protrusion 1b, and can move in the arrow B direction until the end face 2i contacts the protrusion 1b. It has become.

As shown in FIG. 2, the loading rack 1
Reference numeral 9 is sandwiched by guide plates 5e and 5f of the holder support angle 5 from above and below, and is guided to move in the directions of arrows AB. Loading rack 19 above
, A rack gear is formed in the direction of the arrow AB,
Further, a fixing hole 19a for fixing the head mode switching shaft 8 is formed. Accordingly, the mode switching lever 2 and the loading rack 19 are connected via the head mode switching shaft 8, and the mode switching lever 2 and the loading rack 19 are interlocked in the direction of the arrow AB.

As shown in FIGS. 1 to 3, a loading motor 15 that can rotate forward and reverse is fixed to a side end of the holder support angle 5 in the direction of arrow A. The driving force of the loading motor 15 is obtained from a motor gear 16 mounted on the loading motor 15.
The gear is transmitted to the rack gear of the loading rack 19 via the gears 17a, 17b, 18a, and 18b. Therefore, when the loading motor 15 is driven, the loading rack 19, that is, the mode switching lever 2 moves in the direction of the arrow AB.
The loading motor 15 and the springs 6 and 7 are
It has a driving force and a biasing force capable of smoothly moving the mode switching lever 2 in the directions of arrows AB.

The loading motor 15, the motor gear 16, the gears 17a, 17b, 18a, 18b, the loading rack 19, and the springs 6, 7 constitute moving means. The loading motor 15, the motor gear 16, the gear The mode switching means moving means is constituted by 17a, 17b, 18a, 18b and the loading rack 19.

As shown in FIGS. 1 and 10, the angle substrate 10 is mounted on the surface of the substrate mounting portion 4e of the holder support angle 4. The above angle substrate 1
At 0, a first mode detection switch (detection means) 11 and a second mode detection switch (detection means) 12 are attached. When the mode switching lever 2 moves in the direction of arrow AB, the first mode detection switch 11
The second mode detection switch 12 is arranged so that switching is performed by the projection 21 of the mode switching lever 2. When the mode switching lever 2 moves in the direction of arrow AB, the second mode detection switch 12 projects the projection 2 m of the mode switching lever 2.
Are arranged so that switching is performed.

Eject lever (recording medium moving means) 1
A mounting pin 4f provided on the substrate mounting portion 4e of the holder support angle 4 is formed in a substantially rectangular shape.
And is rotatable in the direction of the arrow GH with the mounting pin 4f as the center of rotation. The eject lever 13 is constantly urged in the direction of arrow G by a spring (recording medium moving means) 14.

A pin 13d for switching the second mode detection switch 12 when the main body of the eject lever 13 rotates in the direction of arrow G is attached to a predetermined position of the one arm portion 13b of the eject lever 13. When the holder 3 moves to the unloading position, the end surface 13c of the arm 13b in the direction of arrow C contacts the convex portion 2n of the mode switching lever 2, while the holder 3 moves to a position other than the unloading position. Sometimes, the projection 2m of the mode switching lever 2
To come into contact with. As described above, the eject lever 13 is positioned by contacting the convex portion 2n or the protrusion 2m of the mode switching lever 2.
Further, the end surface 1 of the arm portion 13b on the arrow A direction side
Reference numeral 3e abuts on the projection 2m of the mode switching lever 2 when the holder 3 moves to the unloading position.

The distal end 13a of the other arm 13f of the eject lever 13 is pressed by the disk 43 in the direction of arrow A when the disk 43 mounted on the holder 3 moves to the loading position. ing. For this reason, the eject lever 13 is
When 3 moves to the loading position, it is rotated in the direction of arrow H.

As shown in FIG. 18, near the eject key 33 in the direction of arrow A, an eject detection switch 4 which is switched by the eject key 33 is provided.
0 is provided. And the above eject key 3
3. The eject detection switch 40 and the mode switching lever 2 moving to the loading position are operated by the operation surface 3 of the eject key 33 from the front of the cabinet 34.
The distance from the eject key 33 to the eject detection switch 40, that is, the eject detection switch 40,
Assuming that the moving distance of the eject key 33 before the switching is performed is β, and the distance from the eject key 33 to the mode switching lever 2, that is, the moving distance of the eject key 33 until it contacts the mode switching lever 2, is γ. They are arranged so as to satisfy a positional relationship of <α <γ.

When the eject key 33 is pushed in the direction of arrow A to turn on the eject detection switch 40, a signal is output to the main control circuit 36 (described later). The main control circuit 36 controls the operation and drive of each part such as driving the loading motor 15 based on an input signal from the eject detection switch 40, and moves the mode switching lever 2 in the direction of arrow A to perform unloading. State. Thereby, the disk 43 can be taken out.

When the loading motor 15 cannot be driven, for example, during a power failure, the eject key 33 is pushed in the direction of arrow A to contact the mode switching lever 2, and then the arrow key A is pressed. By pushing in the direction, the mode switching lever 2 is manually moved in the direction of arrow A to bring it into the unloading state. Thereby, the disk 43 can be taken out. However, in order to remove the disk 43 by manually moving the mode switching lever 2 as described above, the operation surface 33a of the eject key 33 must be further inside (frontward in the direction of arrow A) than the front of the cabinet 34.
Must be pushed down to Therefore, during normal operation, even if the eject key 33 is pressed, the eject key 33 does not come into contact with the mode switching lever 2.

When the eject key 33 is not pushed in the direction of arrow A, the mode switching lever 2
Never abut. Therefore, there is no possibility that external vibrations and shocks are transmitted to the disk recording / reproducing apparatus main body via the eject key 33.

As shown in FIG. 12, the present disk recording / reproducing apparatus includes a loading motor 15 and a spindle motor 2.
0, pickup 23, feed motor 26, recording head 2
9 is provided with a main control circuit 36 for controlling the operation of each unit. The main control circuit 36 is partially mounted on a circuit board 52 mounted on the rear surface of the chassis 1, and the remaining part is mounted on the cabinet 34. The main control circuit 36 detects ON / OFF of an operation key 35 for a user to instruct various operations such as recording, reproduction, and stop, an eject detection switch 40, and first and second mode detection switches 11 and 12. When various signals are input from the mode detection circuit 39 or the like, the loading motor 15 is driven based on these signals, for example, via the drive circuit 38, or the spindle motor 20 or the feed motor is driven via the drive circuits 37a and 37b. The operation and drive of each unit are controlled, such as by driving the motor 26.

The main control circuit 36 determines whether or not the recording operation on the disk 43 is being performed by the pickup 23, the recording head 29, and the like.
3, etc., as internal information.

Next, each operation of the above configuration will be described. First, when the disk 43 is not inserted (removable mode), the holder 3 is in an unloading state. At this time, as shown in FIG.
The mode switching lever 2 is moving in the direction of arrow A, and the protrusion 1b of the chassis 1 is in contact with the end face 2h of the notch 2c or 2e. The guide member 3a ... holder 3, with located in the upper end position 2a ₁ of the arrow B direction in the guide grooves 2a of the mode switching lever 2 ..., as shown in FIG. 9 (a), the holder support angle 4 ·
5 are located at the upper ends of the guide holes 4a. The projections 2f and 2g of the mode switching lever 2 are located at the ends of the guide holes 4b and 5b of the holder support angles 4.5 in the direction of arrow A.

When the disc 43 is not inserted, the eject lever 13 is rotated in the direction of arrow G as shown in FIG.
The end surface 13c of the arm 13b abuts on the protruding portion 2n of the mode switching lever 2, and the end surface 13e of the arm portion 13b abuts on the protrusion 2m of the mode switching lever 2. As a result, the mode switching lever 2, which is constantly urged in the direction of arrow B by the springs 6 and 7, is restricted from moving in the direction of arrow B by the eject lever 13. The first mode detection switch 11 is not switched, and is therefore in the OFF state, while the second mode detection switch 12 is connected to the eject lever 1.
Switching is performed by the pin 13d of No. 3 and therefore, it is in the ON state.

Further, since the loading motor 15 is stopped, the arm 28b of the head operation lever 28 is in contact with the head mode switching shaft 8 on the upper surface 28c as shown in FIG. 11 (a). Therefore, the arm 28a of the head operation lever 28 is slightly upward. Therefore, the recording head 29 is disposed at a position (UP) where the recording head 29 does not contact the disk 43. Further, the spindle motor 20 is stopped.

In the above state, the disk 43
Is inserted into the insertion portion formed by the bent portions 3b and 3c of the holder 3 in the direction of arrow A, as shown in FIG. 10C, the distal end portion 13a of the arm portion 13a of the eject lever 13 is Is pushed in the direction of arrow A, whereby the eject lever 13 starts rotating in the direction of arrow H. Accordingly, the pin 13d of the arm 13b of the eject lever 13 is connected to the second mode detection switch 1
2 and the second mode detection switch 12 is turned off. The first mode detection switch 11 is off.
The state continues. Further, the end surface 13 of the arm portion 13b
e is separated from the projection 2m of the mode switching lever 2. As a result, the mode switching lever 2 is released from the restriction by the eject lever 13 and moves in the direction of arrow B by the urging force of the springs 6 and 7.

In the following description, the state in which the end surface 13e of the arm portion 13b of the eject lever 13 is separated from the projection 2m of the mode switching lever 2, that is, the state in which the lock of the mode switching lever 2 is released is an intermediate state. It is referred to as a mode.

When the insertion of the disk 43 into the holder 3 is completed, the mode switching lever 2 moves in the direction of arrow B as shown in FIG.
The guide members 3a of the holder 3 descend by being guided by the guide grooves 2a of the mode switching lever 2, and move to the lower end position 2a ₂ in the direction of arrow A in the guide grooves 2a.
As shown in FIG. 9 (b), it moves to the lower ends of the guide holes 4a... 5a. As a result, the holder 3 moves downward from the position in the unloading state. At this position, the holder 3 moves in the directions of arrows AB and the up and down directions by the guide grooves 2a of the mode switching lever 2 and the holder. Guide holes 4 for supporting angles 4.5
a ... 5a ... will be regulated.

Also, as shown in FIG.
The eject lever 13 rotated in the direction abuts on the protrusion 2m of the mode switching lever 2 in which the end surface 13c of the arm 13b has moved in the direction of arrow B. As a result, the rotation of the eject lever 13 in the direction of arrow G due to the urging force of the spring 14 is restricted by the projection 2m. Then, the first mode detection switch 11 is switched by the projection 21 of the mode switching lever 2 to be turned on, while the second mode detection switch 12 is kept turned off.

Further, as shown in FIG. 11B, the arm portion 28b of the head operation lever 28 has an upper surface 28d
The arm portion 28a of the head operation lever 28 is directed substantially in the horizontal direction (substantially in the direction of arrow A). Therefore, the recording head 29 is positioned at the position (D
OWN). Thereafter, when a reproduction operation is instructed, the spindle motor 20 is driven via the driving device 37a.

In the above-described reproducible state, when the mode switching lever 2 is further moved (for example, about several mm) in the direction of arrow B by the reverse rotation of the loading motor 15, as shown in FIG. The second mode detection switch 12 is switched by the projection 2m of the mode switching lever 2 to be turned on, while the first mode detection switch 11 is kept on.

Then, as shown in FIG.
By further movement in the direction, the mode switching lever 2
Are in contact with the end surfaces 2i of the notches 2c and 2e, and the protrusions 1b of the chassis 1 contact the guide members 3a of the holder 3 at the lower end positions 2a in the direction of the arrow A in the guide grooves 2a of the mode switching lever 2. ₂ while maintaining the state of being moved to the lower ends of the guide holes 4a... 5a of the holder support angles 4.5 as shown in FIG. 9C. As a result, the holder 3 is held at the position in the reproducible state.

Further, as shown in FIG. 11C, the arm 28b of the head operation lever 28 has an upper surface 28e.
, The arm portion 28a of the head operation lever 28 slightly faces downward. Therefore, the recording head 2
Reference numeral 9 is arranged at a position (TOUCH) at which data can be recorded on the disk body 43a of the disk 43. As a result, the disk recording / reproducing apparatus main body enters a state in which recording on the disk 43 is possible (recordable mode). Thereafter, when a recording operation is instructed, the spindle motor 20 is driven via the driving device 37a. The switching between the reproducible state and the recordable state is performed by the main control circuit 36 based on a signal from the mode detection circuit 39.

The ON / OFF states of the first and second mode detection switches 11 and 12 in the unloading state, the reproducible state, the recordable state, and the intermediate state between the unloaded state and the reproducible state are summarized. It is shown in Table 1. The operations of the loading motor 15, the recording head 29, and the spindle motor 20 when shifting from the unloading state to the reproducible state via the intermediate state and when shifting from the reproducible state to the recordable state are summarized. FIG. 16 is a timing chart. Note that the operation of each component when shifting from the unloading state to the recordable state is an operation combining the above two operations.

[0104]

[Table 1]

Next, when the disk recording / reproducing apparatus having the above configuration is in the reproducible state or the recordable state, that is, in the loading state, a signal is inputted from the operation keys 35 or the like to instruct the reproducing operation of the disk 43. The control operation of the main control circuit 36 in the case where the operation is performed will be described below with reference to the flowchart of FIG.

First, when a reproducing operation is instructed by the operation key 35 or the like (S1), it is determined whether or not a recording operation on the disk 43 by the pickup 23, the recording head 29, or the like is being performed at that time (S2). ).

If the recording operation on the disk 43 has not been performed, the ON / OFF state of the first and second mode detection switches 11 and 12 is detected via the mode detection circuit 39, whereby the disk recording / reproducing apparatus main body is detected. It is determined whether or not is in a reproducible state (S3). If so, the operation of reproducing the disk 43 by the pickup 23 or the like is started (S8). On the other hand, if the reproduction is not possible, the loading motor 15 is driven to rotate forward through the drive circuit 38 to move the mode switching lever 2 in the direction of arrow A (S5).

In S2, if the recording operation on the disk 43 has been performed, the recording operation is completed (S2).
4) Then, the loading motor 15 is driven to rotate forward to move the mode switching lever 2 in the direction of arrow A (S).
5).

Next, when the main body of the disk recording / reproducing apparatus is brought into a reproducible state by the movement of the mode switching lever 2 (S6), the loading motor 15 is stopped (S6).
7) The reproducing operation of the disk 43 by the pickup 23 or the like is started (S8). The determination in S6 is based on the ON / OF of the first and second mode detection switches 11 and 12.
This is performed by detecting the F state.

As described above, the main control circuit 36 drives the loading motor 15 via the drive circuit 38 to move the mode switching lever 2 in the direction of the arrow A to switch the mode from the recordable state to the reproducible state. Is switched. Further, when the recording operation on the disk 43 is being performed at the time when the reproducing operation is instructed, the main control circuit 36 performs a control operation so as to complete the above recording operation and thereafter start the reproducing operation. Do. Therefore, the recording operation on the disk 43 is not interrupted by the start of the reproducing operation, and therefore, there is no possibility that a part or all of the information to be recorded is damaged.

Next, in the same manner as described above, the control operation of the main control circuit 36 when a signal is input from the operation keys 35 or the like and the recording operation of the disk 43 is instructed will be described with reference to the flowchart of FIG. Will be described.

First, when a recording operation is instructed by the operation key 35 or the like (S11), the first and second mode detection switches 11 and 12 are turned on / off via the mode detection circuit 39.
By detecting the FF state, it is determined whether or not the disk recording / reproducing apparatus body is in a recordable state (S
12). If recording is possible, pickup 2
The recording operation on the disk 43 by the recording head 3 or the recording head 29 is started (S16). On the other hand, if it is not in the recordable state, the loading motor 1
5 is driven in reverse to move the mode switching lever 2 in the direction of arrow B (S13).

Next, when the main body of the disk recording / reproducing apparatus is brought into a recordable state by the movement of the mode switching lever 2 (S14), the loading motor 15 is stopped (S1).
5) The recording operation on the disk 43 by the pickup 23, the recording head 29, and the like is started (S16). S1
The determination in 4 is made by detecting the ON / OFF state of the first and second mode detection switches 11 and 12.

As described above, the main control circuit 36 drives the loading motor 15 via the drive circuit 38 to move the mode switching lever 2 in the direction of the arrow B to switch the mode from the reproduction enable state to the record enable state. Is switched.

Next, each operation of the above configuration when the mode is switched from the loading state to the unloading state will be described. The operation of each of the above-described components from the loading state to the unloading state is substantially the same as that of the operation from the unloading state to the loading state.

First, when the eject key 33 is pushed in the direction of arrow A to turn on the eject detection switch 40 and a signal is output to the main control circuit 36, the main control circuit 36 To drive the loading motor 15 forward. As a result, the mode switching lever 2 moves in the direction of arrow A. And FIG.
As shown in (c), the protrusion 2m of the mode switching lever 2 and the end surface 1 of the arm 13b of the eject lever 13
3c, the eject lever 1 is released.
3 rotates in the direction of arrow G by the urging force of the spring 14 and pushes the disk 43 in the direction of arrow B.

Thereafter, as shown in FIG.
When the second mode detection switch 12 is turned on by the pin 13d of the eject lever 13 rotated in the direction,
A signal is output from the mode detection circuit 39 to the main control circuit 36, and the main control circuit 36 stops driving the loading motor 15 via the drive circuit 38. Thus, the loading motor 15 and the recording head 2 when shifting from the reproducible state to the unloading state via the intermediate state and when shifting from the recordable state to the reproducible state.
9 and the operation of the spindle motor 20 are summarized in FIG.
The timing chart is shown in FIG.

Next, when the disk recording / reproducing apparatus main body having the above configuration is in the reproducible state or the recordable state, that is, in the loading state, the eject key 3
The control operation of the main control circuit 36 in the case where a signal is input from the eject detection switch 40 in response to the pressing of the button 3 and the operation of removing the disk 43 is instructed will be described below with reference to the flowchart of FIG.

First, when an ejecting operation is instructed by the eject key 33 or the like (S21), it is determined whether or not the recording operation on the disk 43 by the pickup 23 or the recording head 29 or the like is being performed at that time (S22). ).

If the recording operation on the disk 43 has been performed, the above-described recording operation is completed (S23), and the rotation of the disk 43 is stopped by stopping the driving of the spindle motor 20 (S24). .

In S22, if the recording operation on the disk 43 is not performed, it is determined whether or not the reproducing operation of the disk 43 by the pickup 23 or the like is performed (S25). If the reproducing operation of the disk 43 has not been performed, the process proceeds to S26 described later, while if the reproducing operation has been performed, the rotation of the disk 43 is stopped by stopping the driving of the spindle motor 20 (S2).
4).

Next, the loading motor 15 is driven to rotate forward to move the mode switching lever 2 in the direction of arrow A (S26). Then, when the disk recording / reproducing apparatus main body enters the unloading state (S27), the loading motor 15 is stopped (S28). Thereby, the rotation restriction of the eject lever 13 by the mode switching lever 2 is released, and the disc 43 is pushed out in the direction of arrow B by the rotation of the eject lever 13 in the direction of arrow G. The determination in S27 is made by detecting the ON / OFF state of the first and second mode detection switches 11 and 12.

As described above, the main control circuit 36 drives the loading motor 15 via the drive circuit 38 to move the mode switching lever 2 in the direction of the arrow A to switch the mode from the loading state to the unloading state. Perform switching. Further, when the recording operation on the disk 43 is being performed at the time when the removal operation is instructed, the main control circuit 36 performs a control operation so as to complete the above-described recording operation and thereafter start the removal operation. Do. Therefore, for example, even if the eject key 33 is erroneously pressed during the recording operation on the disk 43, the recording operation on the disk 43 is not interrupted by the start of the ejection operation. There is no risk that some or all will be damaged.

As described above, in the disk recording / reproducing apparatus having the above-described configuration, the mode switching lever 2 moves in conjunction with the movement of the holder 3 to switch between the recordable state and the reproducible state. Only when the position of the mode switching lever 2 does not correspond to the above state, the mode switching lever 2 is moved to the position corresponding to the state.
To move.

Therefore, when the disk 43 is moved from the unloading position to the loading position, the mode switching lever 2 may be moved to a predetermined position corresponding to any of the recordable mode and the playable mode. For this reason, the mode switching lever 2 does not have to be stopped at a predetermined position corresponding to, for example, the reproducible mode when the disk 43 is moved, so that the mode switching lever 2 can be simplified. .
Further, the biasing force of the eject lever 13 provided for moving the disk 43 is hardly restricted.

The loading motor 15 moves the disk 43 from the loading position to the unloading position via the mode switching lever 2 and the eject lever 13. As described above, since the mode switching lever 2 and the disk 43 are moved by the loading motor 15 and the like, the number of components can be reduced, and the apparatus can be further reduced in size and simplified.

Further, the disc 43 is moved from the loading position to the unloading position by the eject lever 13, and when the moving operation of the disc 43 is completed, the mode switching lever 2 is moved, and the operation of the loading motor 15 and the like is performed. Regulate. As described above, when the movement operation of the disk 43 is completed, the position of the mode switching lever 2 can be reliably restricted by the eject lever 13, so that the mode switching lever 2 can be restricted to an appropriate position. It is possible to improve the reliability of the device.

The position of the mode switching lever 2 by the first mode detection switch 11 and the second mode detection switch 12 and the disc 4 by the eject lever 13
3 is detected. Thus, the number of components can be reduced, and the device can be further reduced in size and simplified.

Further, the mode switching lever 2 being moved to the loading position is manually moved to the intermediate position by the eject key 33, and the eject lever 1 is moved.
By 3, the disk 43 is moved from the intermediate position to the unloading position. Thus, for example, even at the time of a power failure, the disk 43 at the intermediate position can be manually moved to the unloading position, so that the operability of the apparatus can be improved.

The mode switching lever 2 is moved in the direction of arrow B by the urging forces of the springs 6 and 7, so that the disc recording / reproducing apparatus main body can be reproduced, and the mode switching lever 2 is moved by the loading motor 15 or the like. It is moved in the direction of arrow AB to switch between the reproducible state and the recordable state, while switching between the reproducible state and the unloading state.

Therefore, the loading motor 15 and the like
When the disk recording / reproducing apparatus main body is to be in the recordable state, it is only necessary to move the mode switching lever 2 in the direction of arrow B to switch from the reproduction possible state to the recordable state. On the other hand, when the main body of the disk recording / reproducing apparatus is in the unloading state, the loading motor 15 and the like can move the mode switching lever 2 in the direction of arrow A without being affected by the urging forces of the springs 6 and 7 to enable recording. From the state to the reproducible state, and then the spring 6.
7, the mode switching lever 2 may be moved in the direction of arrow A to switch from the reproducible state to the unloading state.

When the disc recording / reproducing apparatus main body is mounted on the cabinet 34 via the elastic members 9 for vibration isolation, the mode switching lever 2 and the eject key 33 are turned on when the disc 43 is located at the loading position. They are arranged so that they do not abut each other.

Therefore, the mechanism of the eject key 33 can be simplified, and even if vibrations or shocks are applied to the disk recording / reproducing apparatus from the outside, the adverse effects of the vibrations or shocks can be reduced. And is less susceptible to damage. Thereby, the reliability of the device can be maintained.

Embodiment 2 Another embodiment of the present invention will be described below with reference to FIGS. 21 to 29. For the sake of convenience, the same reference numerals are given to the components having the same functions as those shown in the drawings of the first embodiment, and the description thereof will be omitted.

As shown in FIGS. 21 and 22, a disc recording / reproducing apparatus as an information recording / reproducing apparatus according to the present embodiment is different from the disc recording / reproducing apparatus of the first embodiment in that a switching restricting lever (regulating means) 48 is provided. , A solenoid (regulating means) 49, a disk detection switch 53, and a protection hole detection switch 54. The recording means moving means is constituted by the head mode switching shaft 8, the head operation lever 28, the recording head mounting arm 30, the spring 31, the support shaft 32, and the like, and includes a pickup 23, a grip 24, a head mounting angle 25, a feed motor. 2
6, head operation lever 28, recording head mounting arm 30
The recording means driving means is constituted by the above.

As shown in FIG. 22, the switching restricting lever 48 is mounted on a pin 4h provided on the back surface of the substrate mounting portion 4e of the holder supporting angle 4, and the arrow is formed around the pin 4h as a rotation center. It is rotatable in the GH direction. In addition, the above solenoid 49
Are mounted on the back surface of the substrate mounting portion 4e of the holder support angle 4.

As shown in FIG. 23, a protrusion 4g for restricting the rotation of the switching restricting lever 48 in the direction of arrow G is formed on the substrate mounting portion 4e of the holder supporting angle 4.

As shown in FIG. 25A, the solenoid 4
The iron core 49a has a switching restricting lever 4 at its tip.
8 is inserted into a hole 48a provided at one end of
It does not fall out of the hole 48a. Also,
A spring (regulating means) 50 that constantly urges the switching restricting lever 48 in the direction of arrow G is provided on the iron core 49a of the solenoid 49.
Is attached. For this reason, the solenoid 49
When the state is set to the N state, the iron core 49a moves in the arrow C direction,
In contact with the circumferential surface 48a ₁ of the hole 48a of the restricting lever 48 its tip switching, the switching control lever 48 arrow H
Rotate in the direction. On the other hand, when the solenoid 49 is turned off, the iron core 49a moves in the direction of the arrow D due to the urging force of the spring 50, and its distal end is formed on the peripheral surface 48 of the hole 48a.
in contact with the a _2, the switching control lever 48, to the end face 48b of the other end abuts against the projecting portion 4g of the holder support angle 4 is rotated in the arrow G direction.

As shown in FIG. 21, the disk detection switch 53 and the protection hole detection switch 54 are mounted on a circuit board 52. Disk detection switch 5
3 is a discrimination hole 41 of the disc 43 inserted in the holder 3.
It is provided at a position where f can be detected, and is turned ON when the identification hole 41f is detected, for example. The protection hole detection switch 54 is provided at a position where the protection hole 41g of the disk 43 inserted into the holder 3 and the hole 44f of the disk 46 can be detected, for example, when the protection hole 41g or the hole 44f is detected. It is turned on.

As shown in FIG. 24, the main control circuit 3
When signals are input from the disk detection switch 53 and the protection hole detection switch 54, the solenoid 6 turns ON / OFF the solenoid 49 or drives the loading motor 15 via the drive circuit 38 based on these signals. The operation and drive of each unit are controlled, for example, by driving the spindle motor 20 and the feed motor 26 via the drive circuits 37a and 37b.

That is, when the disks 43 and 46 can be reproduced, as shown in FIG.
9 is turned off, and the switching restricting lever 48 rotates in the direction of arrow G. Therefore, the protrusion 2m of the mode switching lever 2 that has moved in the direction of arrow B abuts on the end face 48c of the switching restricting lever 48. Thereby, the position of the mode switching lever 2 is regulated.

In the recordable state of the disk 43, the solenoid 49 is turned on as shown in FIG.
In this state, the switching restricting lever 48 rotates in the direction of arrow H. For this reason, the protrusion 2 of the mode switching lever 2
The contact state between m and the end face 48c of the switching restricting lever 48 is released, and the mode switching lever 2 is further moved in the direction of arrow B by the driving force of the loading motor 15.

When the discs 43 and 46 are not inserted, the solenoid 49 is in the OFF state as shown in FIG. 14A, and the mode switching lever 2 moves in the direction of arrow A. Therefore, the protrusion 2m of the mode switching lever 2 is
8 is separated from the end face 48c.

As shown in FIGS. 26A and 26B, a concave portion having a width substantially equal to the width of the head operating lever 28 is formed on the inner surface 34b of the cabinet 34 along the direction of arrow AB. (Holding portion) 34c is provided. The concave portion 34c is formed at a position (retreat position) where the recording head mounting arm 30 moved upward can be fitted. Further, the recording head mounting arm 30 fitted in the concave portion 34c, that is, the recording head 29
Is restricted from moving in the direction of the arrow CD.

The recording head 29 is connected to the pickup 23 via a recording head mounting arm 30, a head operating lever 28, a head mounting angle 25, and the like. Accordingly, the recording head 29 and the pickup 23 are integrally moved in the directions of arrows CD by the driving force of the feed motor 26. The pickup 23 is always moved to a predetermined position in the direction of arrow C at the unloading position where the disks 43 and 46 are not inserted. Therefore, the recording head 29 is always moved to a predetermined position in the direction of arrow C at the unloading position, so that the recording head mounting arm 30 can be securely inserted into the recess 34c. It has become.

The recess 34c may be provided on the inner surface 34b of the cabinet 34 so as to hold the recording head mounting arm 30 moved to a predetermined position in the direction of arrow C. It is not necessary to provide over the entire moving range in the D direction. Therefore, it is possible to reduce the size of the device.

Further, as shown in FIGS.
When the disks 43 and 46 are inserted, the recording head mounting arm 30 moves downward and comes out of the recess 34c. Other configurations are the same as those of the first embodiment.
Has the same configuration as that of the disk recording / reproducing apparatus.

Next, when the disk recording / reproducing apparatus having the above configuration is in the reproducible state or the recordable state, that is, in the loading state, a signal is inputted from the operation keys 35 or the like, and the reproducing operation of the disk 43, for example, is performed. The control operation of the main control circuit 36 when instructed will be described below with reference to the flowchart of FIG.

First, when a reproducing operation is instructed by the operation key 35 or the like (S1), it is determined whether or not the recording operation on the disk 43 by the pickup 23, the recording head 29 or the like is being performed at that time (S2). ).

If the recording operation on the disk 43 is not performed, the solenoid 49 and the switching restricting lever 48
, The position of the mode switching lever 2 is regulated, and the disc recording / reproducing apparatus main body is in a reproducible state by the mode switching lever 2. Therefore, S8
Then, the operation of reproducing the disk 43 by the pickup 23 or the like is started. On the other hand, if the recording operation on the disk 43 has been performed, the above-described recording operation is completed (S4), and then the loading motor 15 is driven to rotate forward to move the mode switching lever 2 in the direction of arrow A (FIG. 4). S5).

Next, when the main body of the disk recording / reproducing apparatus is brought into a reproducible state by the movement of the mode switching lever 2 (S6), the loading motor 15 is stopped (S6).
7) The reproducing operation of the disk 43 by the pickup 23 or the like is started (S8). The determination in S6 is based on the ON / OF of the first and second mode detection switches 11 and 12.
This is performed by detecting the F state.

As described above, when the recording operation on the disk 43 is not performed, the position of the mode switching lever 2 is restricted by the solenoid 49 and the switching restricting lever 48. Therefore, the main body of the disk recording / reproducing apparatus can be brought into a reproducible state.

Next, in the same manner as described above, the control operation of the main control circuit 36 when a signal is input from the operation key 35 or the like and the recording operation of the disk 43 is instructed will be described with reference to the flowchart of FIG. This will be described below.

First, when a recording operation is instructed by the operation key 35 or the like (S31), the disk detection switch 53 is turned off.
By detecting the N / OFF state, it is determined whether or not the disk 43 is a recordable disk (S32).
Subsequently, by detecting the ON / OFF state of the protection hole detection switch 54, it is determined whether or not recording on the disk 43 is possible (S33). If it is determined in S32 that the disc cannot be recorded, and
If it is determined in S33 that so-called overwriting on the disc is prevented, the operation ends.

Next, in order to move the mode switching lever 2 in which the position is regulated in the direction of arrow B, the solenoid 49 is turned on (S34), and then the loading motor 15 is rotated in reverse through the drive circuit 38. Drive to move the mode switching lever 2 in the direction of arrow B (S3
5).

Next, when the main body of the disk recording / reproducing apparatus is brought into a recordable state by the movement of the mode switching lever 2 (S36), the solenoid 49 is turned off and the loading motor 15 is stopped (S37). The recording operation on the disk 43 by the recording device 29 or the like is started (S38). The determination in S36 is made by detecting the ON / OFF state of the first and second mode detection switches 11 and 12.

When the recording operation on the disk 43 is completed (S39), the loading motor 15 is driven forward by the drive circuit 38 to move the mode switching lever 2 in the direction of arrow A (S40). Next, when the main body of the disc recording / reproducing apparatus is brought into a reproducible state by the movement of the mode switching lever 2 (S41), the loading motor 15 is stopped (S42), and the operation is terminated.

As described above, when the recording operation on the disk 43 is completed, the main control circuit 36 drives the loading motor 15 via the drive circuit 38 to move the mode switching lever 2 in the direction of arrow A. Therefore, when the recording operation on the disk 43 is not performed, the position of the mode switching lever 2 is restricted by the solenoid 49 and the switching restricting lever 48, and the disk recording / reproducing apparatus main body can be maintained in the reproducible state. .

Next, when the disk recording / reproducing apparatus having the above-described configuration is in the reproducible state or the recordable state, that is, in the loading state, a signal is inputted from the operation keys 35 or the like, and, for example, the operation of taking out the disk 43 is performed. The control operation of the main control circuit 36 when instructed is shown in FIG.
This will be described below with reference to the flowchart of FIG.

First, when a take-out operation is instructed by the operation key 35 or the like (S51), the pickup 2 is made at that time.
It is determined whether or not the recording operation on the disk 43 is performed by the recording head 3 or the recording head 29 (S52).

If the recording operation on the disk 43 has not been performed, the flow shifts to S57 described later. On the other hand, if the recording operation on the disk 43 has been performed, the recording operation described above is completed (S53). Then, the rotation of the disk 43 is stopped by stopping the driving of the spindle motor 20.

Then, the loading motor 15 is driven to rotate forward through the drive circuit 38 to move the mode switching lever 2 in the direction of arrow A (S54). Next, when the main body of the disk recording / reproducing apparatus is brought into a reproducible state by the movement of the mode switching lever 2 (S55), the loading motor 15 is stopped (S56).

Subsequently, the feed motor 26 is driven via the drive circuit 37b (S57), and the pickup 23 and the recording head 29 are moved to predetermined positions in the direction of arrow C (S5).
8), the feed motor 26 is stopped (S59).

Next, the loading motor 15 is driven to rotate forward to move the mode switching lever 2 in the direction of arrow A (S60). Then, when the disc recording / reproducing apparatus main body enters the unloading state (S61), the loading motor 15 is stopped (S62). Thereby, the rotation restriction of the eject lever 13 by the mode switching lever 2 is released, and the disc 43 is pushed out in the direction of arrow B by the rotation of the eject lever 13 in the direction of arrow G. The determination in S61 is made by detecting the ON / OFF state of the first and second mode detection switches 11 and 12.

As described above, the main control circuit 36 drives the feed motor 26 via the drive circuit 37b,
After moving the pickup 23 and the recording head 29 to predetermined positions in the direction of arrow C, the mode switching lever 2 is moved in the direction of arrow A to switch the mode from the loading state to the unloading state. For this reason, when the operation of taking out the disk 43 is performed, the pickup 23 and the recording head 29 are always moved to the predetermined positions in the direction of arrow C, so that the recording head mounting arm 30, that is, the recording head 29 It is securely inserted and held in the portion 34c, and its movement in the direction of the arrow CD is regulated.

As described above, the disk recording / reproducing apparatus having the above-described configuration is operated by the recording means moving means including the head mode switching shaft 8, the head operating lever 28, the recording head mounting arm 30, the spring 31, the support shaft 32, and the like. In conjunction with the switching of the switching lever 2 to the recordable state, the recording head 29 is arranged at a position where recording can be performed on the disk main body 43a of the disk 43, while the mode switching lever 2 is moved to a position other than the loading position. In conjunction with this, the recording head 29 is arranged at the retracted position. Further, the movement of the mode switching lever 2 is restricted by the switching restricting lever 48, the solenoid 49 and the spring 50, and the switching of the mode of the disk recording / reproducing apparatus from the reproducible state to the recordable state is restricted.

Therefore, when the disk 43 moves from the unloading position to the loading position, the recording head 29 is not disposed at a position where recording can be performed on the disk body 43a. That is, when the non-recordable disk 46 is placed on the tray 3, the movement of the mode switching lever 2 to a predetermined position corresponding to the recordable state is restricted. Will not be moved to As a result, collision between the case 44 of the unrecordable disk 46 and the recording head 29 can be avoided, so that the recording head 29 is not damaged and the reliability and safety of the apparatus are maintained. It is possible to do.

The pickup 23, grip 24,
The recording head 29 is moved in the direction of arrow D by the recording means driving means including the head mounting angle 25, the feed motor 26, the head operation lever 28, the recording head mounting arm 30, and the like, in conjunction with the switching of the mode switching lever 2 to the loading state. To a position where recording or reproduction is possible on the disk main body 43a, while the signals from the first and second mode detection switches 11 and 12 etc.
When the main control circuit 36 detects that the mode switching lever 2 is switched to the unloading state, the recording head 29 is moved in the direction of arrow C before the mode switching lever 2 is moved in the direction of arrow A, and the recording head 29 contacts the disk 43. It is inserted and held in the recessed portion 34c of the cabinet 34, which is a position where it does not touch.

As described above, in the loading state, the recording head 29 moves in the direction indicated by the arrow D in the feed direction of the pickup 23.
In the direction of the arrow CD, which is the feed direction of the pickup 23, by moving the concave portion 34c of the cabinet 34 for moving the recording head 29 in correspondence with the vertical movement of the disk 43, for example. There is no need to provide the entire range. Therefore, the size of the device can be reduced.

The recording head 29 fitted in the concave portion 34c of the cabinet 34 is held by the concave portion 34c, and its movement in the direction of the arrow CD is regulated. For this reason, even if external vibrations or shocks are applied to the disk recording / reproducing apparatus main body, adverse effects due to the vibrations or shocks can be reduced, and damages and the like are less likely to occur. Thereby, the reliability of the device can be maintained.

[Embodiment 3] Still another embodiment of the present invention will be described below with reference to FIGS. For the sake of convenience, the same reference numerals are given to the components having the same functions as those shown in the drawings of the first embodiment, and the description thereof will be omitted.

A disc recording / reproducing apparatus as an information recording / reproducing apparatus according to the present embodiment is different from the disc recording / reproducing apparatus of the first embodiment in that springs 6 and 7 as moving means are used as shown in FIG. A loading detection switch 51, a loading spring (first urging means) 55, and a loading lever (first urging means) 56 are provided.

As shown in FIGS. 32 (a) and 32 (b), the loading lever 56 is formed in a substantially L-shape having elongated holes 56c extending in the directions of arrows AB. The guide projections 1d provided on the rear surface of the chassis 1 are inserted into the elongated holes 56c, 56c, thereby being attached to the rear surface of the chassis 1. The loading lever 56 is movable in the directions of arrows AB by being guided by the guide protrusions 1d. Then, the loading lever 56 has an arrow B
When it moves in the direction, one end thereof comes into contact with a protrusion 1f provided on the rear surface of the chassis 1 so that positioning is performed. The upright portion 56a, which is the other end of the loading lever 56, is formed in a size that can abut the head mode switching shaft 8. still,
The guide projections 1d are prevented from easily coming out of the long holes 56c of the loading lever 56.

The loading spring 55 is mounted on the rear surface of the chassis 1 and constantly urges the loading lever 56 in the direction of arrow B.

The loading detection switch 51 is
The loading lever 56 is attached to the back surface of the circuit board 52, and is turned on when the loading lever 56 comes into contact with a projection 1f provided on the back surface of the chassis 1. The signal of the loading detection switch 51 is input to the main control circuit 36.

As shown in FIG. 31, at predetermined positions on both side ends of the holder 3 in the direction of the arrow CD, protruding pieces (second biasing means) 3d having appropriate elasticity are provided. It is provided so as to protrude from the back side, that is, downward. The protruding pieces 3d are pressed against the surface of the chassis 1 when the main body of the holder 3 is moved to the loading position, and push up the main body of the holder 3 by its elastic force. Other configurations are the same as those of the first embodiment.
Has the same configuration as that of the disk recording / reproducing apparatus.

Next, each operation of the above configuration will be described. However, description of the same operation as that described in the first embodiment will be omitted.

First, when the disk 43 is not inserted (removable mode), the holder 3 is in the unloading state. At this time, FIG.
As shown in (b), the mode switching lever 2 is connected to the loading spring 55 via the upright portion 56a of the loading lever 56 which is in contact with the head mode switching shaft 8.
, While the projection 2m of the mode switching lever 2 is in contact with the end face 13e of the eject lever 13, the movement in the arrow B direction is restricted. For this reason, the mode switching lever 2 maintains the state moved in the direction of arrow A.

In the above state, the disk 43
Is inserted into the insertion portion formed by the bent portions 3b and 3c of the holder 3 in the direction of arrow A, the eject lever 13
Starts rotating in the direction of arrow H, so that the projection 2m of the mode switching lever 2 is positioned at the end face 13e of the eject lever 13.
Separate from. As a result, as shown in FIGS. 9C and 9D, the mode switching lever 2 is released from the regulation by the eject lever 13 and the loading spring 55 is released.
Will move in the direction of arrow B due to the urging force. The loading lever 56 moves in the direction of arrow B integrally with the mode switching lever 2.

When the loading lever 56 has one end abutting on the projection 1f on the rear surface of the chassis 1, the movement in the direction of the arrow B is regulated, and the positioning (intermediate position) is performed. The switch 51 is turned on. The main control circuit 36 drives the loading motor 15 via the drive circuit 38 when a signal indicating that it is turned on is input from the loading detection switch 51. As a result, FIG.
As shown in (f), the mode switching lever 2 continues to move further in the direction of arrow B from the intermediate state, and the disk recording / reproducing apparatus main body is brought into a state where the disk 43 can be reproduced.

In the reproducible state, the projecting pieces 3d of the holder 3 are pressed against the surface of the chassis 1 to push the holder 3 body upward by its elastic force. The King is not affected.

The operation of each of the above-mentioned components from the reproducible state to the unloading state is substantially the same as that of the operation from the unloading state to the reproducible state.

In the above operation, as shown in FIG. 33, the force in the direction of arrow B acting on the mode switching lever 2 is F, the force in the direction of arrow A is −F, and the mode switching lever 2 is in the reproducible state. Is S ₃ , the position in the recordable state is S ₄ , and the position in the unloading state is S ₀ , while the holder 3 is guided by the guide grooves 2 a of the mode switching lever 2 to move downward. The positions of the mode switching lever 2 at the time of starting and at the time of starting moving upward are S ₁ and S ₂ , respectively.

Then, between the positions S ₁ and S ₂ , the clamping plate (not shown) of the disk 43 inserted into the holder 3 and the turntable 20
The holder 3 is pulled downward by a magnet (not shown) provided on the top of the a. Therefore, as shown in FIG. 6 (a), the mode switching lever 2, it takes an arrow B directed force f ₁ to be the maximum at the position S _2.

As shown in FIG. 17B, the mode switching lever 2 is maximized at the position S ₀ by the urging force of the loading spring 55 via the loading lever 56, while the loading lever 56 is Chassis 1
Is under the direction of arrow B of the force f ₂ becomes zero when in contact with the rear surface of the protruding portion 1f.

Further, between the above-mentioned positions S ₁ and S ₂ , the protruding pieces 3 d of the holder 3 are pressed against the surface of the chassis 1 so that the main body of the holder 3 becomes protruding pieces 3 d.
It is pushed upward by the elastic force of. For this reason, as shown in FIG.
Arrow A directed force f ₃ having the maximum would take at position S _2.

[0187] Therefore, the mode switching lever 2 above, as shown in FIG. 2 (d), the resultant force _{f 4 (= f 1 + f} 2 + f 3) of force f ₁ ~ force f ₃ becomes can take .
Here, since the force f ₃ is a force in the direction of the arrow A, the position S ₂
The size of the resultant force f ₄ in a force at the position S ₂ f ₁
Smaller than the size of. That is, the force f ₁ in the direction of arrow B applied to the mode switching lever 2 at the position S ₂ is
And thus it is reduced by the arrow A directed force f ₃ by projecting pieces 3d ... elastic force of the holder 3. Therefore, the driving force of the loading motor 15 when the mode switching lever 2 is moved in the direction of arrow A, ie, from the loading state to the unloading state, can be reduced by the driving force of the loading motor 15. ing.

As described above, in the disk recording / reproducing apparatus having the above-described structure, the mode switching lever 2 is moved in the direction of arrow B via the loading lever 56 by the urging force of the loading spring 55, while the projecting piece 3d of the holder 3 is moved. …
The mode switching lever 2 is moved in the direction of the arrow A via the holder 3 by the urging force of. Further, the mode switching lever 2 is moved in the direction of arrow AB by the loading motor 15 or the like. As described above, the mode switching lever 2 is moved in the direction of the arrow AB to switch the mode of the disc recording / reproducing apparatus body between the unloading state and the reproducible state, while the mode between the reproducible state and the recordable state. Is switched. Also, the disk 43
Is fixed and held on the tray 3 in a loading state by a magnet (not shown) of a turntable 20a as a recording medium holding means.

Therefore, the loading motor 15 and the like
For example, when the main body of the disk recording / reproducing apparatus is set to be in a reproducible state, it is only necessary to further move the mode switching lever 2 moving in the direction of arrow B by the urging force of the loading spring 55 in the direction of arrow B. When changing from the playable state to the recordable state,
Mode switching lever 2 against the urging force of projecting pieces 3d.
Need only be further moved in the direction of arrow B. On the other hand, for example, when the main body of the disk recording / reproducing apparatus is changed from the recordable state to the reproducible state, the mode switching lever 2 moving in the direction of arrow A is further moved in the direction of arrow A by the urging force of the projecting pieces 3d. Just need to
For example, in the case of the unloading state, it is only necessary to further move the mode switching lever 2 in the direction of arrow A against the urging force of the loading spring 55.

As described above, the mode switching lever 2 is
When switching the disk recording / reproducing apparatus main body from the loading state to the intermediate state, the turntable 20 is used.
That is, it is only necessary to move the magnet against the one of the magnetic force of the magnet a and the urging force of the loading spring 55.
When the mode of the disc recording / reproducing apparatus is switched from the intermediate state to the loading state, the mode switching lever 2 is moved against the force obtained by subtracting the magnetic force of the magnet of the turntable 20a from the urging force of the projecting pieces 3d. I just need to do it. Accordingly, the driving force of the loading motor 15 can be reduced, and the size of the loading motor 15 can be reduced, so that the device can be reduced in size and simplified.

[0191]

As described above, the information recording / reproducing apparatus according to the first aspect of the present invention, in conjunction with the movement of the transport means, is capable of driving the recording medium in the recordable mode and the reproducible mode, and A mode switching means for moving to each predetermined position corresponding to an intermediate mode between the takeout enabling mode and the drivable mode to switch the mode; a detecting means capable of detecting the position of the mode switching means; Biasing means for biasing in the direction, and moving means for moving the mode switching means to a position corresponding to the mode when the position of the mode switching means detected by the detecting means does not correspond to the mode. Configuration.

Thus, the mode switching means does not have to be stopped at a predetermined position corresponding to, for example, the reproducible mode when moving the recording medium, so that the mode switching means can be simplified. Becomes Also, there is an effect that the urging force of, for example, the moving urging means provided for moving the recording medium to the drivable position is hardly restricted.

As described above, the information recording / reproducing apparatus according to the second aspect of the present invention is configured such that the moving means moves the recording medium from the drivable position to the removable position.

As a result, the number of parts can be reduced, and the size and simplification of the device can be further reduced.

According to the information recording / reproducing apparatus of the third aspect of the present invention, as described above, the recording medium is moved from the drivable position to the removable position, and the mode switching is performed when the recording medium moving operation is completed. It is configured to include a recording medium moving unit that regulates movement of the unit and operation of the moving unit.

As a result, the mode switching means can be restricted to an appropriate position, and the reliability of the device can be improved.

As described above, the information recording / reproducing apparatus according to claim 4 of the present invention is configured such that the detecting means can detect the completion of the recording medium moving operation by the recording medium moving means.

As a result, the number of components can be reduced, and the size and simplification of the device can be further reduced.

[0199]

[0200]

[0201]

[0202]

[0203]

[0204]

[0205]

[0206]

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[Brief description of the drawings]

FIG. 1 is a plan view of a disk recording / reproducing apparatus as an information recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the disc recording / reproducing apparatus on the side of arrow C.

FIG. 3 is a rear view of the disk recording / reproducing apparatus.

4A is a side view of the holder provided in the disk recording / reproducing apparatus in the direction of arrow D, FIG. 4B is a plan view thereof, and FIG. It is.

5A is a side view of the mode switching lever provided in the disk recording / reproducing apparatus in the direction of arrow D, FIG. 5B is a plan view, and FIG. It is a side view.

FIG. 6A is a side view of one holder supporting angle provided in the disk recording / reproducing apparatus, and FIG.
Is a plan view.

FIG. 7A is a plan view of the other holder supporting angle provided in the disk recording / reproducing apparatus, and FIG.
Is a side view.

8A and 8B show a positional relationship among a chassis, a holder, and a mode switching lever provided in the disk recording / reproducing apparatus, where FIG. 8A shows an unloading state, and FIG.
FIG. 4 is a side view of the arrow C direction side in a reproducible state and a recordable state.

9A and 9B show a positional relationship among a holder, a holder supporting angle, and a mode switching lever of the disk recording / reproducing apparatus, wherein FIG. 9A shows an unloading state, FIG. 9B shows a reproducible state, and FIG. FIG. 4 is a side view of arrow C direction side in a recordable state.

FIGS. 10A and 10B show the operation of first and second mode detection switches and an eject lever provided in the disk recording / reproducing apparatus, wherein FIG.
(B) is a plan view of a main part in a reproducible state, (c) is an intermediate state, and (d) is an unloading state.

11A and 11B show a positional relationship of a recording head provided in the disk recording / reproducing apparatus, wherein FIG. 11A shows an unloading state, FIG. 11B shows a reproducible state, and FIG. It is a side view of the principal part of a direction side.

FIG. 12 is a block diagram showing a schematic configuration of a control system provided in the disk recording / reproducing apparatus.

FIG. 13 is a flowchart showing a control procedure at the time of a reproducing operation by the control system.

FIG. 14 is a flowchart showing a control procedure during a recording operation by the control system.

FIG. 15 is a flowchart showing a control procedure at the time of a take-out operation by the control system.

FIG. 16 is a timing chart illustrating the operation of each component of the disk recording / reproducing apparatus.

FIG. 17 is a schematic perspective view of a cabinet to which the disk recording / reproducing apparatus main body is attached.

FIG. 18 is a crushed sectional view showing a configuration of a main part of the cabinet.

FIG. 19A is a plan view of a recordable / reproducible disk used in the disk recording / reproducing apparatus,
(B) is a side view, (c) is a front view, (d)
Is a bottom view.

20 (a) is a plan view, FIG. 20 (b) is a side view, FIG. 20 (c) is a front view, and FIG. 20 (d) is a front view of a reproducible disc used in the disc recording / reproducing apparatus. It is a bottom view.

FIG. 21 is a plan view of a disk recording / reproducing apparatus as an information recording / reproducing apparatus according to another embodiment of the present invention.

FIG. 22 is a rear view of the disk recording / reproducing apparatus of FIG. 21;

23A is a side view of one holder supporting angle provided in the disk recording / reproducing apparatus of FIG. 21; FIG.
(B) is a plan view.

FIG. 24 is a block diagram showing a schematic configuration of a control system provided in the disk recording / reproducing apparatus of FIG. 21.

25A and 25B show the operation of a switching restricting lever and a solenoid provided in the disk recording / reproducing apparatus of FIG. 21, wherein FIG. 25A shows an unloading state, FIG. 25B shows a reproducible state, and FIG. It is a rear view of the principal part of a state.

26 shows a positional relationship of a recording head included in the disk recording / reproducing apparatus of FIG. 21, (a) is a front view of a main portion in an unloading state, (c) is a front view of a main part in a reproducible state, (B) is a side view of a main part in an unloading state, and (d) is a main part in a reproducible state.

FIG. 27 is a flowchart showing a control procedure at the time of a reproducing operation by the control system of FIG. 24;

FIG. 28 is a flowchart showing a control procedure at the time of a recording operation by the control system of FIG. 24;

FIG. 29 is a flowchart showing a control procedure at the time of a take-out operation by the control system of FIG. 24;

FIG. 30 is a rear view of a disc recording / reproducing apparatus as an information recording / reproducing apparatus according to still another embodiment of the present invention.

31A is a side view of the holder provided in the disk recording / reproducing apparatus of FIG.
(B) is a plan view, and (c) is a side view on the arrow C direction side.

32 shows the operation of a loading spring and a loading lever provided in the disk recording / reproducing apparatus of FIG. 30, (a) is an unloading state, (c)
4E is a side view of a main part in an intermediate state, FIG. 4B is a side view of a main part in a reproducible state, FIG. 5B is a back view of a main part in an intermediate state, and FIG. .

33 (a) to (d) are graphs illustrating the magnitude of a force applied to a mode switching lever provided in the disk recording / reproducing apparatus of FIG. 30.

FIG. 34 is a plan view of a main part of a conventional information recording / reproducing apparatus.

FIG. 35 shows a positional relationship among a chassis, a holder, and a mode switching lever provided in the conventional information recording / reproducing apparatus, where (a) shows an unloading state,
(B) is a side view of an intermediate state, (c) is a reproducible state, and (d) is a side view of a recordable state.

36 (a) and 36 (b) show an operation of a rotating lever provided in the conventional information recording / reproducing apparatus, where (a) is an unloading state and a reproducible state, and (b) is a side surface of a main part in a recordable state. FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Chassis 2 Mode switching lever (mode switching means) 3 Holder (conveying means) 3d Projecting piece (second biasing means) 4.5 Holder supporting angle 6.7 Spring (biasing means, moving means) 8 Head mode switching shaft (Recording means moving means) 9 Elastic body 11 First mode detecting switch (Detecting means) 12 Second mode detecting switch (Detecting means) 13 Eject lever (Recording medium moving means) 14 Spring (Recording medium moving means) 15 Loading motor ( Moving means, mode switching means moving means) 20 spindle motor 20a turntable 23 pickup (recording means driving means) 24 grip (recording means driving means) 25 head mounting angle (recording means driving means) 26 feed motor (recording means driving means) 28 Head operation lever (recording means moving means, recording means drive Means) 29 print head (recording means) 30 recording head mounting arm (recording means moving means,
Recording means driving means 33 eject key (switching means moving means) 34 cabinet (information recording / reproducing apparatus housing) 34c recess (holding part) 36 main control circuit 40 eject detection switch 43a / 46a disk body (recording medium) 48 switching Control lever (control means) 49 Solenoid (control means) 50 Spring (control means) 51 Loading detection switch 53 Disk detection switch 54 Protection hole detection switch 55 Loading spring (first biasing means) 56 Loading lever (first biasing means) )

──────────────────────────────────────────────────続 き Continued on the front page (72) Yoshio Katayama 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Sadao Uchiyama 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation (58) Investigated field (Int.Cl. ⁷ , DB name) G11B 17/04

Claims (4)

(57) [Claims] 1. An information recording / reproducing apparatus, wherein a transport means for mounting a recording medium is provided so as to reciprocate between a position at which the recording medium can be taken out and a drivable position. A mode in which the mode is switched to a predetermined position corresponding to the recordable mode and the reproducible mode, which are drive modes of the recording medium, and the intermediate mode between the removable mode and the drivable mode, in conjunction with the movement. Switching means; detecting means capable of detecting the position of the mode switching means; biasing means for biasing the mode switching means in a fixed direction; and a position corresponding to the mode of the mode switching means detected by the detecting means. An information recording / reproducing apparatus, comprising: moving means for moving the mode switching means to a position corresponding to the mode when not performing. 2. An information recording / reproducing apparatus according to claim 1, wherein said moving means moves the recording medium from a drivable position to a removable position. 3. A movement of the mode switching means and a movement of the recording medium for restricting the operation of the movement means when the movement of the recording medium is completed, while moving the recording medium from the drivable position to the removable position. 3. The information recording / reproducing apparatus according to claim 1, further comprising means. 4. An information recording / reproducing apparatus according to claim 3, wherein said detecting means is capable of detecting the completion of the recording medium moving operation by the recording medium moving means.