JP2854854B2 - Disc player - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player.
I do. 2. Description of the Related Art Especially in a disk player for a vehicle,
When the driver operates the disc player, a small
Switch has to be operated, and the operability is very poor.
Was. [0003] The present invention has been made in view of the above points.
In view of the above, the display was designed to improve operability.
The purpose is to provide a cup player. [0004] A disk according to claim 1 is provided.
The disc player has a special disc for the disc player.
When the disc is inserted to the specified position, the disc is inserted in the disc insertion direction.
At the same time as playback of the disc,
Eject position located farther in the disc insertion direction than position
Transport means for transporting a disk to an apparatus, and transport means
Reproducing means for reproducing the disk transported by the
After the end, the disc at the eject position is inserted
Detecting means for detecting that
Play disc again based on the result of step detection
And control means for controlling. According to the disc player of the present invention, the user
When inserting a disc, the length to insert the disc
Is shorter and the ejected disc
The risk of touch is small, and
Once the disc is removed from the disc player,
You can play the disc without inserting it again.
come. Hereinafter, an automotive vehicle according to an embodiment of the present invention will be described.
Refer to the attached drawing for the loading disc player.
I will explain. In the figure, reference numeral 1 denotes the auto loader.
1 shows the entire disc player. Shown in FIG.
As shown in FIG.
Slot 3 for inserting the disc 5 to be played.
A slot 3a is provided extending in the left-right direction. However, this
The left and right direction referred to here is to the front indicated by arrow Y.
belongs to. Therefore, the arrow X direction in the figure indicates the left side,
The arrow Z direction is upward. In addition, the disk 5
Recording and reading signals using laser light
The outer diameter is about 12 cm. front panel
3 also includes operations of the disc player, for example,
Operation buttons for starting and ejecting
Group 6 is provided. [0008] As shown in FIGS.
A chassis 7 as a support member is provided in the ring 2.
You. The chassis 7 is fixed to the main body 7a and the front end of the main body.
And the specified sub-chassis 7b. As shown in FIG. 1 and FIG.
As shown in FIG.
It is supported via four vibration isolating members 8 composed of the above. However
FIG. 1 shows only the two left vibration damping members 8.
You. The chassis 7 has a turntable rotation surface to be described later.
Parallel direction, in this case the front-back direction (arrow Y direction and its opposite direction)
Tray 10 is provided to be movable in the opposite direction).
You. 6, the tray 10 is L-shaped.
Body 10a formed into a shape, and screwed to the right end of the body.
And the side wall member 10b thus formed. Shah
The bracket 12 is fixed to the left end of the
The left end of b10 is covered with a pin 10c protruding from the left end.
Slides into the long hole 12a formed in the slot 12 extending in the front-back direction
It is supported by freely engaging. On the other hand, a pair of chassis
Moving members 13 and 14 are arranged. Right moving member 14
Is made of resin, etc., and the tray moves to the right end of the chassis 7.
Guide bar 15 extending in the
Attached to the right end of the tray 10 slidably supported by
Have been killed. Specifically, the moving member 14 is
The elongated hole 14a formed by extending in the front-rear direction is
Sliding engagement with the pin 10e protruding from the end
Therefore, it is supported. Also, the left moving member
13 is located between the tray 10 and the bracket 12,
A long hole 13a is formed in the moving member so as to extend in the front-rear direction.
Slidably engages pin 10c provided on the left end of ray 10.
It is supported by The right end of tray 10
The part is attached to the guide bar 15 in the tray moving direction,
Slidably engaged at two support points separated from each other.
Have been. At the rear end of the tray 10, arms 17a
The interlocking shaft 17 to which 17b is fixed extends
Is provided, and is rotatably supported by the tray 10.
I have. Pins 17c and 17 are provided on the inner surfaces of the tips of arms 17a and 17b.
d are projected from each other, and each pin is
Slots 13b, 14b formed at each rear end by extending vertically
Are slidably engaged with each other. On the right end of the chassis 7
Is a power transmission device comprising a plurality of gears rotatably supported
A structure 19 is provided. A motor is located in front of the power transmission mechanism 19.
As shown in FIG.
The worm 20a fitted to the output shaft of the motor
The transmission mechanism 19 is in mesh with the first gear 19a. Also power
The final stage gear 19b of the transmission mechanism 19 is located at the lower end of the left side surface of the moving member 14.
Formed in the moving direction of the moving member, ie, in the front-back direction
With the rack part 14d. In addition,
The meshing position between the final gear 19b and the rack part 14d is
Is slidably engaged with and supported by the guide bar 15.
It is near the midpoint of the support point. The above-mentioned motor 20, power transmission mechanism 19,
Movement by the interlocking shaft 17 including the arms 17a, 17b, etc.
A driving force applying means for applying a driving force to the members 13 and 14
It is configured. Below the tray 10, sandwiched between moving members 13,14.
A container 22 carrying the disk 5 is arranged at a position where
ing. The container 22, the tray 10, the moving member 13 and
And 14 constitute a disk carrying unit. What
The disk carrying surface of the container 22 is
To avoid direct contact between disk and disk 5
A protective film 23 made of such a material is stuck. Left and right sides of container 22
Four pins 22a, one pair at each end, extend in the left-right direction
It is provided. The container 22 has these pins 22a
Four elongated holes 10 formed in the tray 10 by extending in the vertical direction
f slidably engages the tray 10
B In a direction perpendicular to the movement direction, that is,
It is movably supported within the enclosure. Pin 22 of container 22
a also moves through the moving members 13 and 14 after passing through the slot 10f.
Slidably engage with cam holes 13d and 14d respectively formed in
It has been impatient. Cam holes 13d and 14d are disc inserted
Direction, ie, from front to back, upward, ie, container
22 tilts away from the turntable described later
A taper portion, and an end of the taper portion in the disk insertion direction, that is,
A horizontal portion that is continuous with the rear end and extends rearward, and a rear end of the horizontal portion
The tapered portion extends continuously and in parallel with the tapered portion.
It is configured. That is, before and after the moving members 13 and 14
The container 22 moves up and down with the directional movement.
-ing Next, the tray 10 has a turntable described later.
At a predetermined position on the container, that is, the data held by the container 22.
The rotation center of the disk 5 is substantially aligned with the rotation axis of the turntable.
The container 22 against the tray 10 until the
Lock when the tray 10 reaches the predetermined position.
Release the locked state of the antenna 22 from the tray 10 and
Locking and unlocking to lock the ray 10 to the housing 2
The means will be described. As shown in FIGS. 4 and 6, the chassis
A concave portion 7c is formed at the right end of the main body 7a. one
The tray 10 is attached to the right
In the tray moving direction when
A cam groove 14e is formed so that the position matches the position of the recess 7c.
Have been. A lever 25 can swing freely at the rear end of the tray 10.
Are provided at the swinging end of the lever.
A pin 26 protruding from the cam groove 14e is provided. sand
That is, the pin 26 is selectively engaged with the recess 7c and the cam groove 14e.
It is becoming so. In addition, the moving member 14
The groove 26 is formed so as to extend forwardly and continuously with the
The tray 10 is slidably engaged and the tray 10 is
Moving the moving member 14 after reaching the predetermined position.
A long hole 14f is formed. The recess 7c, the cam groove 14e, the long hole 14f,
The pin 26 moves the tray 10 to a predetermined position on the turntable.
Lock the container 22 to the tray 10 until it reaches
When the tray 10 reaches the predetermined position, the container 22
To unlock the tray 10 and
Lock / release means for locking to the housing 2 is configured.
Has been established. The lock / release means and the chassis 7
, Tray 10, container 22, moving members 13, 14,
The above-described driving force applying means including the force transmitting mechanism 19 and the motor 20 and the like.
Step, inserted from the slot 3a of the housing 2
The playing position of the disc 5, that is, the above turntable
A disk transport mechanism for transporting the disk upward is configured. Next, a disk provided in the housing 2 is provided.
A description will be given of the performance means for performing the performance. As shown in FIG.
On the lower surface of the chassis 7 which is a part of the mechanism,
A support member 28 formed in a U-shape is arranged, and
Through four vibration isolating members 29 made of flexible rubber, etc.
It is attached to the chassis 7. This support member 28 has the above
Parallel to the rotating surface of the turntable, in this case in the longitudinal direction
Two guides extending and acting as guide means
The shafts 30a, 30b are fixed. Guide shaft 30
A slider 31 formed in a substantially U-shape moves on the a and 30b.
At both sides in the movement direction, that is, both right and left ends
Supported. As shown in FIG. 9 and FIG.
The slider 31 extends in the moving direction of the slider, that is, in the front-back direction.
A screw 31a is provided, and the screw 31a has a rectangular parallelepiped shape.
The case 33 is rotatably held. That is,
33 rotates in a plane perpendicular to the slider movement direction.
It is. The information recorded on the disk 5 is stored in the case 33.
The objective lens 33a that irradiates the surface with a laser spot light
Optical pick for reading information from the disc
Up means (not shown except the objective lens 33a) is carried
Have been. Also, the slider 31 and the case 33 are
Collectively called 34. Here, for example, as shown in FIG.
The tray 10 forming a part of the disc transport mechanism has
The disk transport mechanism moves to the position before the disk transport (as shown in FIG. 2).
State) and the carriage 34 is in the home position, ie,
When in the rest position before the performance, the objective lens 33a
An opposite circular opening 10d is formed. This opening
10d removes dust and the like adhering to the surface of the objective lens 33a
Provided to wipe off the disk transport mechanism without removing it
It was done. Therefore, although not described in detail,
A member constituting a part of a feeding mechanism, comprising:
When the structure and the carriage 34 are at the above-mentioned pre-play position
Also open the members interposed between the tray 10 and the objective lens 33a.
Needless to say, an opening similar to the opening 10d is formed.
not. Also, as shown in FIG.
Is also formed with a circular opening 2a. This opening
The section 2a also has a disk transport mechanism and
And the carriage 34 are in the rest position before the performance described above.
Is positioned so as to face the objective lens 33a.
You. The housing 2 can also close this opening 2a
Lid 2b is fixed with screws. This is the same for housing 2
By providing such an opening, the housing can be removed.
The objective lens 33a can be cleaned without removing it.
Although not described in detail, the upper part is opened through the openings 10d and 2a and the like.
Adjust the light irradiation power of the optical pickup means
It is also possible. Before and after, as shown in FIGS.
In addition, the end of the slider 31 in the moving direction
In a vertical plane, in this case, it extends
31b is formed. Slot 31b is one end of case 33
Threaded portion 35a is provided in the slot.
The circular head 35b of the biasing screw 35 screwed into the case 33
ing. As the name implies, the axial center of the screw portion 35a of the biasing screw 35 is
The circular head 35b is biased with respect to the axial center.
That is, by rotating the biasing screw 35, the
The base 33 rotates slightly about the support screw 31a.
It is being done. The biasing screw 35 and the circular head 35 of the biasing screw
The rotation angle of the case 33 is determined by the long hole 31b
Position adjustment, that is, the optical type provided in the case
The so-called tangency of the pickup means (not shown)
An adjusting means for adjusting the internal direction is configured. What
After the completion of such adjustment, it is fixed with the screw 31c. As shown in FIG. 6 and FIG.
28 has a screen arranged in parallel with the guide shafts 30a and 30b.
Lew shaft 37 is rotatably mounted at both ends
Have been. A motor 38 is provided in front of the screw shaft 37.
Are arranged, and the screw shaft 37 is connected to the motor.
Therefore, it is rotationally driven through the power transmission means including the pulley 39 and the like.
It has been made to be. Especially obvious in FIG.
As described above, a leaf spring 41 is fixed to the slider 31 in a cantilever shape.
The free end of the leaf spring has a screw shaft 37
A half nut 42 is fixedly screwed into the nut. Above
Includes screw shaft 37, motor 38, and pulley 39
The power transmission means, a leaf spring 41, a half nut 42,
The peripheral small members associated therewith allow the carriage 34
Is configured. On the extension of the movement locus of the carriage 34,
And the drive unit for driving the carriage and the carriage
Turntable 45 is placed at the position sandwiched by the structure
And is fixed to the support member 28. In FIG.
As is apparent from FIG.
Spindle as a drive source provided to carry cables
The motor 46 is directly driven to rotate.
You. As shown in FIG. 6 and FIG.
The case 33 is a turntable 45 and a spindle.
A part of the motor 46 facing the case 33 can be inserted.
A notch 33b is formed. The carriage 34 is
In the home position, i.e., the rest position before playing
When the turntable 45 and the spindle motor 46 are
It is inserted into the notch 33b. As shown in FIG. 7 and FIG.
The output shaft 46a of the motor 46 is rotated by a holding mechanism 47a.
The currently supported idler 47b is brought into contact.
The output shaft is controlled by the holding mechanism 47a and the idler 47b.
Close hand that makes 46a and bearing part 46b that supports it close
A step is configured. Between the output shaft 46a and the bearing 46b
Usually produces a gap of about 10 μm.
This gap can be corrected by providing
Output shaft 46a, and therefore the rotation of the turntable 45 is accurate
It will be smooth. The support member 28 and the guide shaft 30
a, 30b, a carriage 34, and the above-described driving machine including a motor 38
Structure (drives the carriage 34), turntable 45,
The pindle motor 46 and the above-mentioned close
By means and associated peripheral components,
A playing means for playing a disc is constructed. Here, taking the support member 28 into the chassis 7
The attaching method will be described in detail. Four supports of the support member 28 with respect to the chassis 7
The holding point, i.e., the position where the vibration isolating member 29 is
Of the center of the locus of the center of gravity and the rotation axis of the turntable 45
Equidistant on an arc centered on the midpoint between
You. The anti-vibration member 29 is used for the in-vehicle auto loading disc.
External vibrations such as body vibrations of cars equipped with cup players
Provided to protect the playing means from
However, the support points of the support member 28 are arranged as described above,
By providing a vibration isolating member 29 at the point
It will improve. Note that the support point of the support member 28 is
The reason for this is that the above-mentioned playing means accompanying the movement of the carriage 34
Of the position of the center of gravity of the
For example, when the carriage 34 is at the midpoint of the movement locus,
On an arc centered on the center of gravity of the playing means and at equal distances
A support point for the support member 28 is provided, and an anti-vibration member 29 is provided at the support point.
A great vibration-proofing effect can be obtained even if it is applied. Next, the playing position, that is, the turntable 45
Clamp mechanism for clamping the disc 5 conveyed above
Is described. As shown in FIGS. 2, 3 and 6,
Above the antenna 22 and between the moving members 13 and 14
A plate-shaped support member 51 is provided at the position. This support member
A total of four pins 51a, left and right, on each side of 51
It extends in the direction. The support member 51
A pin 51a is formed on the tray 10 by extending vertically.
Slidably engaged with the two long holes 10g,
B) In the direction perpendicular to the tray movement direction,
And is movably supported within a predetermined range. Support member
The 51 pin 51a is also inserted through the long hole 10g of the tray 10.
And the cam holes 13 formed in the moving members 13 and 14, respectively.
g and 14g are slidably engaged. Cam hole
For 13g and 14g, the support member 51 is from the turntable 45
In the direction away, that is, straight upward from front to back
It is inclined. That is, the forward and backward movement of the moving members 13 and 14
As a result, the support member 51 moves up and down with respect to the turntable 45.
It has been made to be. Note that the moving members 13 and 14 are shaped
Of the formed cam holes 13d, 13g and 14d and 14g,
The cam holes 13d and 14d engaging with the pins 22a of the
Hole, which is engaged with the pin 51a of the support member 51.
The cam holes 13g and 14g are referred to as second cam holes. In addition,
All of the first cam holes 13d and 14d in the disc insertion direction
Length and the second cam holes 13g and 14g in the disk insertion direction
It is almost equal to the total length. The support member 51 cooperates with the turntable 45
The pressing member 52 that acts as a disk clamp is rotatable
It is provided in. Note that the position shown in FIG.
This is referred to as the non-clamp position of the material 51. Also, the support member 51 is
The pressing member 52 moves downward by a fixed amount and the turntable 45
Support for contacting the surface of the disc placed on top
The position of the material 51 is called a clamp position. The support member 51 is above
Move between clamped and unclamped positions
It is. Also shown in FIG. 3, the pressing member 52
An annular magnet 52a is provided.
The disk is clamped by the magnetic force of. Also, a pressing member
52 and a supporting member 51 for rotatably supporting the same are made of a steel plate or the like.
The support member 51 is made of a magnetic material, and is
When pressing, the pressing member 52 is supported by the magnetic force of the magnet 52a.
The holding member 51 is configured to be sucked. FIG.
Also, as shown in FIG.
The cushioning member 52b made of
When the support member is in the unclamped position,
The upper surface of the pressing member 52 and the housing 2 are
It does not come into contact. However, this buffer member 52
Is not limited to the upper surface of the pressing member 52, and the supporting member 51
Housing facing the pressing member 52 when in the pump position
2 may be provided in a part of them. As can be seen particularly clearly in FIG.
On the lower surface of 51, a pair of left and right holding plates 54 and 55
And three pins 54a and 55 each.
a so that it can be freely moved in the left-right direction
Is attached. Pressing parts are provided at the opposing parts of the holding plates 54 and 55
Fits in a circumferential groove 52c (shown in FIG. 3) formed on the outer periphery of the material 52.
Arc portions 54b and 55b to be inserted are formed.
The two parts that can be engaged with the bottom surface of the circumferential groove 52c of the pressing member 52
Each of the claws 54c, 55c protrudes. On the lower surface of the support member 51, holding plates 54, 55 are also provided.
A pair of left and right synchronization plates 57 and 58 are provided behind the
Rotatably attached to the support member 51 via the respective pins 57a and 58a.
Is attached. Each sync plate 57,58 has 3 arms
57c, 57d, 57e and 58c, 58d, and 58e. A
A long hole 57f is formed at the tip of the arm 57c,
The pin 58f protruding from the tip of the arm 58c is slidable.
Is engaged. Also, the arm portions 57d, 58 protruding substantially forward.
Slots 57g and 58g are also formed at each tip of d.
The long holes are pins 54e and 55e projecting from the holding plates 54 and 55, respectively.
Are slidably engaged with each other. That is, the synchronization plate 57 and
And 58 act to synchronize the operation of the clamping plates 54 and 55.
It is configured as follows. The holding plate 54 and the synchronization plate
57 is collectively referred to as a first positioning member 61, and a holding plate
The 55 and the synchronization plate 58 are collectively referred to as a second positioning member 62. sand
That is, the pair of positioning members 61 and 62
It is provided movably in a plane substantially perpendicular to the rotation axis.
For example, at two points (claws 54c, 55c), the outer periphery of the pressing member 52
Can be engaged. Further, each of the positioning members 61 and 62
Presses the holding plates 54 and 55 which are a part of both positioning members.
The engaging portion with the outer periphery of the member, that is, the claws 54c and 55c are outside the pressing member.
In the direction approaching the circumference, the coil spring 64 is
Therefore it is energized. The positioning members 61 and 62 described above and a coil
With the spring 64, the pressing member 52 is placed on the supporting member 51.
Positioning means for positioning at a predetermined position is configured.
You. Further, the positioning means, the pressing member 52, and the support member
51 and the related small members
, Ie, the disk 5 transported on the turntable 45
Is configured. The position including the positioning members 61, 62, etc.
The positioning means determines the position of the pressing member 52 on the support member 51.
As well as from the slot 3a in the housing 2.
Position the inserted disk 5 at a predetermined position on the container 22
It also acts as a positioning means for determining. 2 and 6
As is clear from FIG.
Located on both sides of the disk insertion path and
(The disk holding unit together with the tray 10 and the moving members 13 and 14
Configuration) in a plane substantially parallel to the disk carrying surface.
It is now. It is a constituent member of each positioning member 61, 62.
Pins are provided on the lower surfaces of the holding plates 54, 55 and the synchronization plates 57, 58.
The members 54f, 55f, 57h and 58h are respectively protruded. this
Pin members 54f, 55f, 57h and 58h are
Extending substantially perpendicular to the disk carrying surface,
It acts as an engaging portion to be engaged. In addition, coil spring
For the pin 64, each of the pin members 54f, 55f, 57h and 58h
The positioning members 61 and 62 are urged in a direction approaching the position. Here, as shown in FIG.
54f, 55f, 57h and 58h carry discs of container 22
A taper whose diameter decreases toward the surface is formed. However,
The connection member 57h is not shown. Disc load
At the time of ejecting or ejecting, the disc 5
The disk 5 is pinched by the
And at the same time, by the action of the taper of each pin member.
Due to the resulting component force, the disk 5
It is pressed against the disk carrying surface. Next, the disk by the positioning means described above is used.
A mechanism for releasing the clamped state will be described. As shown in FIG. 2 and FIG.
A small bra formed in an L-shape is provided at the upper end of the moving member 14 on the side.
The bracket 71 is fixed, and the small bracket has a pin portion.
A material 72 is protruded. This pin member 72 is vertically
And the tray 10 is extended
At a predetermined position above, i.e., the
The rotation center of the disk 5 carried by the
When it reaches a position that approximately matches the rotation axis of
Of the arm 58e of the synchronizing plate 58 which is a component of the positioning means.
Arranged to engage with the front end of claw 73 screwed to the tip
Is placed. That is, the tray 10 reaches the predetermined position.
With the movement of the moving member 14 after the positioning, the positioning members 61 and 62
Is operated, and the pins provided on the positioning members 61 and 62 are operated.
Engagement state between the disk members 54f, 55f, 57h, 58h and the disk outer periphery,
That is, the disc holding state is released.
Because As is apparent from FIG.
The container 22 is turned on the pin member 72 provided at
Taper in the direction approaching
The pa is formed. Disk 5 on container 22
The positioning means (positioning member 6)
1,62, etc.) while being in contact with the pin member 72.
Moving along with the container 22 in a direction substantially perpendicular to the tray moving direction.
Reciprocate at the pin portion as described above.
The pin member is formed by tapering the material 72.
The contact between the positioning means and the positioning means is a point contact.
Therefore, the resistance due to mutual contact is extremely small.
Disk loading and ejecting operations
It becomes. Also, due to the action of the taper of the pin member 72,
The positioning means receives thrust by the generated component force.
And Next, the disk is inserted through the slot 3a of the housing 2.
Each mechanism that operates when the disc 5 is inserted will be described.
You. As shown in FIG. 13, the front of the housing
The disk inserted in the front panel 3
A flexible material such as rubber is plated inside the input slot 3a.
So that one end in the short direction faces each other
And a pair of flexible members that close the slot 3a at the main surface
Sex longitudinal members 76 and 77 are provided. Each flexible longitudinal
At the other end in the short direction, that is, at the non-opposite end,
And a pair of fixing members 78 and 79 having an L-shaped cross section.
It is attached to the panel 3. These flexible longitudinal
The slots 3a are provided by the members 76, 77 and the fixing members 78, 79.
The closing means for closing is constituted. At each opposing end of the flexible longitudinal members 76 and 77
An arc-shaped chamfer is provided, and each of the flexible elongate members is
The state of sliding contact with the disk 5 is smooth. Also possible
Thin sections are formed near the opposing ends of the flexible longitudinal members 76 and 77.
And flexible portions 76a and 77a, which are particularly easy to bend, are provided respectively.
I have. The flexible longitudinal members 76 and 77 are electrically conductive.
And, for example, via fixing members 78 and 79, respectively.
Grounded. By doing so,
Remove static electricity from disk 5 inserted from lot 3a
Can adhere to the surface of the disk 5 due to static electricity.
Dust that has entered the housing 2 is prevented from entering.
It is. The material of the flexible longitudinal members 76 and 77 is, for example,
In the case of rubber, as a method of giving it conductivity
It is effective to mix carbon particles and the like. As shown in FIG. 2, FIG. 5 and FIG.
On the right side of the bracket 12 fixed to the left end of the chassis 7
A lever 85 extending substantially in the front-rear direction is arranged, and a pin 85 is provided.
85a allows the bracket to be
It is rotatably attached to 12. This lever 85 moves
It is configured to rotate in conjunction with the moving member 13. one
On the other hand, a prevention member 86 is provided in front of the lever 85 in the vertical direction (arrow
(Z direction and the opposite direction)
ing. A pin 86a projects from the left end of the prevention member 86.
The pin is a long hole 85b formed at the front end of the lever 85.
Are slidably engaged with each other. These levers 85
The anti-slip member 86 allows the disk to be removed from the slot 3a.
A double insertion preventing means for preventing double insertion is configured.
ing. That is, with the rotation of the lever 85, the prevention member 86
Is moved up and down, so that a protection provided on the prevention member is provided.
The stop 86b crosses the slot 3a and the data from the slot 3a
It is designed to prevent disk insertion. By the way, the lever 85 is used to carry the disk
It is linked to the movement of the moving member 13 which is a component of the feeding mechanism.
In this way, the movement for disc transport is
Part of the force is used to drive the disk double insertion prevention means.
By using it as power for
No special drive mechanism is required to drive the insertion prevention means
It is becoming. Therefore, the overall size of the player can be reduced.
This makes it easier to reduce costs and costs. FIG. 2, FIG. 6, and FIG. 14 (a), (c)
As shown in FIG.
At the top, the disc 5 inserted from the slot 3a is
Plan acting as a guide means for guiding to a predetermined position on the corner 22
The inner member 91 is arranged so as to face the disk carrying surface of the container 22.
And is fixed to the lower surface of the tray 10, for example.
You. The guide member 91 is formed by bending a steel plate, for example.
The front end has a connector facing the disc insertion direction.
Inclined taper approaching the disk carrying surface of tena 22
A portion 91a is formed. As shown in FIG. 2, FIG. 6 and FIG.
The tray 10 is inserted into the rear end of the tray 10 through the slot 3a.
Disk positioned at the predetermined position on container 22
5 is slightly pushed in the disc insertion direction,
Play (play) start switch
Switch 93 is provided. However, this PlayStarts
Switch 93 is in front of and behind the play start switch.
Movably in the direction and forward biasing force
14 (also shown in FIG. 14 (b)).
) And engages with the outer periphery of the disk. As shown in FIG. 2, the main body 10 of the tray 10 is
The support shaft 96 extending vertically is fixed to the lower surface of the right end of a.
Have been. The support shaft 96 has an arc shape formed in a substantially rectangular shape.
Arm 97 is pivotally mounted at its approximate center.
ing. Pins 97a and 97b are provided on the lower surface of both ends of the arm 97, respectively.
The pin 97a on the left end is
It can be engaged with the outer periphery of the positioned disk 5. Branch
The detection switch 98 is also attached to the left end of the arm 97 on the shaft 96.
The switch holding member 99, which is held so that it can be engaged,
Is attached. This switch holding member 99 is not shown.
The clockwise spring in FIG.
Ias power has been given. The detection switch
Arm 97 engaged with switch holding member 99 via 98
This coil spring (not shown)
A repulsive force is applied in the same direction as the holding member 99. The above-described support shaft 96, arm 97, detection switch
Switch 98, the switch holding member 99 and the peripheral small members associated therewith.
The member positions the disk 5 on the container 22.
A mechanical detecting means for detecting the occurrence of the fault is configured.
Further, the tray 10 is moved backward from the position shown in FIG. 2, for example.
After moving a predetermined distance and reaching a predetermined position, the right
A pin 97b protruding from the side end is located near the rear end of the chassis 7.
The cut-and-raised portion 7f provided is brought into contact with the cut-and-raised portion 7f.
You. As shown in FIG. 6 and FIG.
The carriage is at the home position on the right side of the
To detect when it has returned to the rest position before the performance
A detection switch 101 is provided. This detection switch
101 is fixed to a support member 28 supporting the carriage 34 and the like.
And protrudes from the slider 31, which is a component of the carriage 34.
The projected projection 31e is the actuator 101a of the detection switch.
Is made to emit a detection signal by engaging with
I have. As shown in FIG. 4, the right end of the chassis 7
The part of the tray 10 is engaged with a part of the tray 10
Detection switch that detects that the
H 103 is fixed. Also, as shown in FIG.
7 at the right end and behind the detection switch 103
Engagement with a portion of member 14 causes the moving member to
Movement limit has been reached and therefore disc loading
Detection switch that detects the completion of
The switch 104 is fixed. However, this detection switch 10
4 is attached to the chassis 7 via the bracket 105
ing. The operation button group 6 and the place
Switch 93, detection switches 98, 101, 103 and 104
Each emitted signal is located at a predetermined position in the housing 2.
Is transmitted to the selected control unit (not shown). For each of these signals
In response to the operation signal sent from the control unit,
And 38 and the timing at which the spindle motor 46 is described later.
It works with. FIGS. 19 and 20 show block diagrams of the control system.
Is the first control unit that controls the entire system.
Host microcomputer (hereinafter abbreviated as host microcomputer)
200) and at least the operation unit 201 and the display unit 202.
Sub-microcomputer which is the second control part which controls the control of
(Hereinafter abbreviated as sub-microcomputer) 203
The microcomputers 200 and 203 are mounted on separate units.
Main power line 204, constant voltage power line 205 and communication
It is connected via line 206. The main power supply is
It is supplied to the host microcomputer through the microcomputer.
To be supplied directly to the host microcomputer.
Of course, it may be possible. [0053] Iwayu, a car responsible for turning on / off the main power supply
The accessory switch 207 is turned on).
The power supply voltage VDD stabilized by the conversion circuit 208 is shown in FIG.
It rises instantly as shown. The output of reset circuit 209 is power
With respect to the voltage (a), a predetermined time constant is used as shown in FIG.
It gradually rises, and when it reaches the predetermined level V1, the host
Reset the computer 200. The host microcomputer 200 resets
A control signal is issued after a certain time T has passed since the
To supply the power supply voltage VDD to the sub-microcomputer 203.
Power switch 210 inserted in the power line between the icons
Turn it on. As a result, the sub microcomputer 203 and the reset
The power supply voltage VDD supplied to the reset circuit 211 is as shown in FIG.
Stand up as shown. The output of the reset circuit 209 is the power supply voltage
In contrast to (c), as shown in FIG.
At the predetermined level V2,
Reset 3. As described above, the host microcomputer 200
By controlling the power of the microcomputer 203,
Since both microcomputers 200 and 203 can be kept in synchronization,
is there. Here, consider the case where this synchronization method is not adopted
And dedicated synchronization to synchronize both microcomputers 200 and 203
It is necessary to provide lines, and the wiring structure is correspondingly complicated
And it takes more time. Also power
When synchronization is separately set for the voltage rise
In FIG. 22, both reset circuits 209 and 211 are connected as shown in FIG.
It is necessary to make the circuit complicated. However, Hoss
The microcontroller 200 controls the power of the sub-microcomputer 203.
By performing the roll, the reset on the sub-microcomputer 203 side is performed.
The reset circuit 211 is a simple circuit having a configuration as shown in FIG.
That the circuit configuration can be simplified as a whole.
Become. The reset circuit 20 on the host microcomputer side
9 can detect the instantaneous interruption of the power supply voltage,
Even if there is momentary interruption of the power supply voltage,
Resets the host microcomputer 200 and sub-microcomputer 203.
And keep them in sync. As shown in FIG. 20, the host microcomputer 200
Address memory 212 and backup memory 213
Built-in, backup when main power is cut off
The backup power supply for the memory 213 is a sub microcomputer
It is supplied from 203. Backup power
Source is regulated by resistor R1 and Zener diode ZD
Communication between the sub microcomputer 203 and the host microcomputer 200
Host microcomputer 20 via line 206 and diode D1
0 is supplied to the power supply terminal. The press described in FIG. 2, FIG. 6 and FIG.
The start switch 93 is a normally closed switch.
And the tray 10 (see FIG. 4) as shown in FIG.
The forward movement limit position is reached, that is, the disc is ejected.
Detection switch 10 that detects that the paper has been transported to the
Connected in series with 3. These switches are connected in series.
When one end of the path is connected to the input
Is connected to the power supply VDD via a resistor R2, and the other end is grounded
Have been. After the performance, the disc is moved to the eject position.
When the paper is conveyed by, the detection switch 103 closes,
Level detection signal is supplied to the input terminal of the sub-microcomputer 203.
It is. On the other hand, at the eject position, the disc is
, The play start switch 93 is opened
However, if the input level of the sub-microcomputer 203 is
It is detected that a transition to the level
It is. The slot 3a of the housing 2 (shown in FIG. 1)
To transport the inserted disc to the playing position
Mechanism (disk transport means) 214 and pickup 21
5 in the radial direction of the disc.
The drive mechanism 216 is turned on / off by the host microcomputer 200.
Main power supply via main power switch 217
It is configured to be. The host microcomputer 200
Layer systems can be used for other source sources, such as tape decks and
During use when used in combination with a tuner
When another source is input to the
Supply the main power to the
Do not turn off the main power switch 217 to stop it.
You. The loading mechanism 214 is not shown in FIGS.
9 and 10, the pickup moving mechanism 216
The structure is as described above. In FIG. 20, address information is recorded on the disk 5.
Program information, including
The information is read by the pickup 215. Pickua
The information read by the step 215 is added through the demodulation circuit 218.
The address information is detected by the
The current position of the backup 215 is determined. And the latest
Address information is stored in the address memory in the host microcomputer 200.
Stored in 212. 220 is based on the output of pickup 215
To determine whether the pickup is in focus
A focus detection circuit that monitors
When the output occurs. Host microcomputer 200 has focus
When the output of the detection circuit 220 is generated, the pickup 215
To the home position (the detection switch in FIGS. 6 and 11).
Pickup mobile device to return to the position where switch 101 operates)
The drive of the structure 216 is controlled and at the home position
Control is performed so as to take focus again. And again
After taking the focus, the address is stored in the address memory 212.
Start playing again from the address just before the out of focus
The pickup 215 to the address immediately before
To move. During the performance, the accessory switch of the car
If the main power of the system is turned off by turning off 207, the power
The disconnection detection circuit 221 detects this and generates an output. this
When the detection output is generated, it is stored in the address memory 212.
The latest address information is written to the backup memory 213.
I will be absorbed. And back when main power is supplied again
Performance starts from the address written in the up memory 213.
Begun. In the host microcomputer 200, during the performance,
And the pickup 215
A counter for sequentially outputting expected address information to be moved next
Address information from the address memory 212 and the address memory 212
And the expected address information from the counter 222 at all times.
Detection circuit 223, which generates an output when
The host microcomputer 220 has a built-in
A track that follows the recording track of the disk 5 with the output
The information reading point of the backup 215 jumps over the track.
to decide. If it is determined that the track jumps,
The information reading point of the backup 215 is determined by the output of the counter 222.
Pickup moving mechanism to move to the expected address
216 is driven and controlled. The information recorded on the disk 5 is
In the case of a musical tone, the pickup 215
To the last read address and expected address.
Even if the information is not read between
This has no effect, but if the recorded information is control information, it must be read.
In such a case.
By moving the step 215 to the last read address,
All information can be read accurately. Reference numeral 224 denotes a temperature sensing element such as a thermistor.
In the housing 2 shown in FIG.
Is provided in the vicinity of. The temperature detection circuit 225 is a temperature sensing element 224
When the output of the
An output is generated when the temperature in 2 rises abnormally. this
The output of the temperature detection circuit 225 is set at the playing position of the disc.
Only valid when That is, the disk
Detection switch that detects that the
Switch 104 (shown in FIG. 24)
When the output of 225 occurs, the host microcomputer
200 is a mechanism that turns off (opens) the main power switch 217.
The power supply to the section is stopped, and the output of
It is in a waiting state until it falls within a predetermined range. The power supply
In addition to stopping supply, for example, the display unit 202 is also used
When the loading of the disc is completed,
Switch to the temperature display at the time
Can be warned that abnormal rises. In FIG. 24, the semiconductor laser diode 22
6 is built in the pickup 215 (shown in FIG. 20) and
Semiconductor that emits laser light for reading recorded information
This is a laser diode that is output from the sub microcomputer 203.
The lighting is driven by the lighting command signal
The lighting time of is restricted. That is, the lighting command
The signal is one input to the AND gate circuit 227 and the other
Input of the disc to the playing position has been completed
The output of the detection switch 104 that detects
Driven by the output of the AND gate circuit 227
The semiconductor laser diode 226 is turned on via the circuit 228.
It is configured to be moved. Therefore, the semiconductor laser diode
Mode 226 only when the disc is in the disc playing position
The lighting is performed in response to the lighting command signal. Reference numeral 229 denotes a piezoelectric buzzer.
229 is controlled by a control signal issued from the sub microcomputer 203.
It is driven through the driving transistor Q1 to generate sound. this
The piezoelectric buzzer 229 for sound generation is a vibration applied to the player body.
It is also used as a detecting element for detecting motion. Trap
That is, when the piezoelectric buzzer 229 is not driven for sound generation,
In the circuit 230, based on the output of the piezoelectric buzzer 229,
The vibration applied to the main body is detected. Detection circuit
230 is an amplifier 231 that amplifies the output of the piezoelectric buzzer 229.
Has a frequency characteristic opposite to that of the piezoelectric buzzer 229.
232 as an equalizer that performs
Set according to the output level and the vibration of the specified size
The comparator 233 compares the
The comparison output of the comparator 233 is sent to the sub microcomputer 203.
Supplied. Here, the well-known focus servo and track
Various servos such as king servo and tangential servo
System, especially for the disc at the information reading point of the pickup 215.
Tracking system that controls the position of the disc in the radial direction.
In a player system equipped with
As shown in the figure, external vibration applied from the outside
By increasing the servo gain by expanding the servo band,
The effect of disturbance is compressed and becomes stronger against external vibration.
You. On the other hand, if the disc is scratched or defective,
A large error signal is generated in the
Conversely, widen the servo band for internal disturbances that cause elephants
As a result, the generated error signal becomes weak because it becomes large.
Become. For home players, external vibrations are
Because there is no, the servo is given priority to the disk reading ability
The band can be determined, but for in-vehicle players,
Is in a state of disturbance, the vibration resistance and the disc
Satisfies both reading ability for scratches, fingerprints, defects, etc.
It is difficult to set the band to be changed. Therefore, as described above, vibration due to disturbance is
Detects and automatically sets the servo band based on the detected output
By performing the switching control, the user
There is no need to switch manually, and
Only good playability against scratches and defects
It is possible to strengthen against vibration. Servo belt
The switching of the region is performed, for example, by switching the
Set the characteristics of the equalizer in several steps and
Select or prepare multiple equalizers with different characteristics
Is done by choosing an appropriate equalizer
You. In the above embodiment, the piezoelectric buzzer 229 is
Therefore, vibration detection that detects external vibration applied to the player body
Although the projection means is configured, the vibration isolating member 8 (see FIG. 1) and the vibration isolating member
At least one of the vibration members 29 (see FIG. 6) is a conductive rubber part.
Material, and electrically vibrates based on the displacement of this rubber member.
Motion may be detected. As described with reference to FIG.
If the stem is used in combination with other source
If another source is input during the performance,
The main power supply to the unit is stopped.
When the waiting state is reached with the
There is a possibility that the disc is double-inserted by mistake. Therefore,
As shown in FIG. 24, the disc plays as one of the display sections 202.
The disc set that indicates that the
Display section 202a, and the disc is carried into the playing position
Output from the detection switch 104 for detecting
When another source is input via the source switch 234, the disk
Main power to the display unit 202a to drive the display unit 202a.
To prevent double insertion of the disc.
You can tell. The semiconductor laser diode shown in FIG.
Iod 226 has a lifetime that depends on temperature,
If used in a location away from heat sources,
It is preferred that For example, as shown in FIG.
Drive 215 of the objective lens 33a (shown in FIG. 9)
Coil 235 to drive the objective lens 33a on the road
The drive unit 236 of the
For example, one of the two units has a semiconductor laser die
Adjustment volume for gain adjustment of Aether 226 and Amplifier 237
Equipped with a pickup 215 that includes
By mounting the drive unit 236 on the other unit,
The effect of heat on the laser diode 226 is reduced.
You can do it. Next, the on-vehicle auto-loading apparatus having the above-described configuration will be described.
Explanation of the operation of the disc player along the playing procedure
I do. FIGS. 1 to 5 show the disc player.
This shows the initial state before the performance. First, as shown in FIG.
It is inserted into the housing 2 from the slot 3a. Disk 5
Is inserted from the slot 3a and, for example,
Pin members 54f provided on the positioning members 61, 62 shown
And 55f, and push both positioning members 61 and 62 to the left and right.
Proceed while dividing. Shaft centers of left and right pin members 54f and 55f
When the rotation center of the disk 5 exceeds the line connecting
The material 54f, 55f is biased in such a way that it approaches the outer circumference of the disc.
Therefore, the disk 5 stays inside the housing 2 even if you release your hand.
Drawn into. At this time, the guide member 91 is displaced.
Guide the disk 5 effectively, and place the disk 5 on the container 22
It is positioned in a fixed position. The disk 5 has four
The outer periphery is supported at four points by the connecting members 54f, 55f, 57h and 58h.
Positioning is performed in a state where
The disc cannot be displaced by external vibration such as body vibration.
No. As shown in FIGS. 15A and 15B,
Simultaneously when the disk 5 is positioned on the container 22
In addition, the outer periphery of the disk 5 is related to the left end pin 97a of the arm 97.
In addition, the arm is, for example, counterclockwise in FIG.
It is turned in the direction. Therefore, the left end of the arm 97 is detected.
Engage the intelligent switch 98 to operate the detection switch
(State of FIG. 15B). Then, the motor 20 starts rotating
The moving member 14 is driven rearward through the power transmission mechanism 19.
It is. However, as is clear from FIGS. 4 and 6, the tray
The lever 25 is provided at the swing end of the lever
The pin 26 is engaged with the cam groove 14e formed in the moving member 14.
The moving member 14 moves the tray 10
The container 22 cannot move relative to the tray 10
And locked. Therefore, the rotation of the motor 20
To the rear of the moving members 14, 13 and the tray 10 and the container 22.
Only the movement is made. In addition, the above-mentioned pin 26 is the cam groove 14e.
While sliding on the right end of the chassis 7. The tray 10 and the container 22 are moved backward by a predetermined amount.
And the disk 5 is stored in the housing 2
At substantially the same time, as shown in FIG.
The pin 97b protruding from the section 7
Abut. In this way, the pin 97b hits the cut-out portion 7f.
The contact between the arm 97 and the detection switch 98
The match state is maintained. Therefore, the motor 20 continues to rotate,
The disk 5 is further transported backward. Along with this,
15 is turned by the cut-and-raised portion 7f.
The arm 97 with the disk 5.
The combined state is released. In this state, the disk 5
The center of rotation approximately coincides with the rotation axis of the turntable 45.
You. The state of engagement between the arm 97 and the disk 5 is released.
At the same time, as shown in FIG.
The groove 14e is separated from the groove 7e into the recess 7c formed in the chassis 7.
Get in. As a result, the tray 10 is moved to the chassis 7, and
Locked to the housing 2 and at the same time
The locked state for ray 10 and therefore the container 22
The locked state for b10 is released. Thus
The rearward movement of only the moving members 14 and 13 is continued, as shown in FIG.
State. That is, the pins 22a protruding from the container 22
Are cam holes 13d and 14 provided in the moving members 13 and 14, respectively.
d along with the container 22 as shown in FIG.
Moves downward while holding the disk 5. Follow
Thus, the disk 5 is placed on the turntable 45. This
, The disk carrying surface of the container 22 is
Away, the disk 5 can rotate with the turntable 45
Become. Also, by the backward movement of only the moving members 13 and 14,
The pin 51a protruding from the support member 51 of the clamp mechanism is moved.
Along the cam holes 13g and 14g formed in the moving members 13 and 14, respectively.
18 and push it together with the support member 51 as shown in FIG.
The pressure member 52 approaches the disk 5, and the disk 5 is clamped.
Is done. The vertical movement of the support member 51
The roak is about 8.5 mm, and the vertical
The moving stroke is about 6.5 mm. Container 22
Of the support member 51
2mm smaller, but this is
The cam holes 13d and 14d into which the pin 22a is slidably engaged are provided.
Caused by having a horizontal section in the middle of the cam hole
It is a result. The disk 5 is moved at the same time as it is clamped.
When the member 14 reaches the rear limit position, as shown in FIG.
At this time, a part of the moving member engages the detection switch 104 to
The intelligent switch is activated, and the motor 20 stops.
It is. Playing is possible in this state. The moving member 13
The lever 85 is rotated in conjunction with the rearward movement of
The preventing member 86 allows the disk to be inserted from the disk insertion slot 3a.
Double insertion of the disc is prevented. Operation buttons provided on front panel 3
When the play start switch 6a of the group 6 is pressed,
The performance starts from the host microcomputer 200 shown in FIGS. 19 and 20.
A start command signal is issued, and in response to this, the turntable
45 rotates and then picks to start playing (playing)
Up 215 is driven by the pickup moving mechanism 216
To start moving from the home position. In addition, pick
Up 215 home position is the information recording range of the disc.
A predetermined position within the frame, preferably the innermost circumference that is the recording start position
The pickup is set near the position and the pickup 215 is
When the switch arrives, the detection switch shown in FIGS.
101 activates. At the time of performance, first, in FIG.
Step 215 to determine whether the backup 215 is in the home position.
Judge in step 1 and pick if you are in the home position
Focus on up 215 (step 2) and pick
Initiate a read operation at up 215. And step 3
At the address obtained by the pickup 215
Information that is the lead-in area of the disc based on the information
Recording start position, ie TOC (Table of Contents) position
Is calculated. The songs recorded on the disc are included in the TOC.
Number, total absolute time, performance time for each song, etc.
Read the recorded information of this TOC at the beginning of the performance
There is a need. TOC position from current address (target address)
As a method for calculating the
The method proposed in No. 58-201994, that is, the goal
The closer to the address, the more accurately the distance to the target address
And that the distance to the target address is
Calculate the distance to the target repeatedly until the
There is a way to move the backup. When the TOC position is calculated in step 3,
Move the pickup 215 to the position (step
4). Then, the contents of the TOC are read by the pickup 215.
(Step 5), and then the operation moves to a performance operation. Pick
If the home position of Kuup 215 is close to the TOC position
The closer it is, the quicker it can be shifted to the performance operation. In addition,
Pickup 215 goes to home position in step 1
If it is determined that the
Is moved to the home position (step
6). When the music to be played is specified,
After reading the TOC content, in FIG.
Pick up the specified address (address of the specified song)
Step feed in the direction of step S) in the initial setting step amount. So
And whether the current address is the specified address in step 8
If it is determined that the address is not the specified address
In step 9, the current address is
It is determined whether it is larger. A place larger than the specified address
The pickup 215 in step 10 forward (FW
D) Direction, i.e., from the inner circumference to the outer circumference
Is determined. If you were sending in the FWD direction
Proceed to step 11 to reverse the feed direction,
Reduce the amount of step (step 12), and then step
Use 13 to feed the pickup 215
Move to 8. In step 10, the reverse (REV) direction
It was determined that the disc was sent from the outer circumference to the inner circumference.
In the case of sending in the previous step amount,
Whether or not the address exceeds the minimum address in the information recording section of the
It is judged in step 14, and if it is judged that it exceeds, step
Reduce the feed step amount at step 15 and return to step 14 again.
The above operation until it is determined that the minimum address is not exceeded.
Repeat the work. And if it is determined that it does not exceed,
Move to step 12. In step 9, the current address is the designated address
If it is determined to be smaller, the pickup is
215 is sent in the REV direction.
If it is determined that the direction is, the process proceeds to step 11. FWD
If the direction is determined, the
Exceeds the maximum address in the disc information recording
It is determined in step 17 whether or not
In step 18, reduce the feed step amount in step 18 and
Return to step 17 and determine that the maximum address is not exceeded.
The above operation is repeated until the operation is completed. And judge not to exceed
Then, the process proceeds to step 12. The maximum and maximum values in the information recording section of the disc are
The minimum address is based on the read information of the TOC content before searching.
And stored as maximum and minimum times.
In steps 14 and 17, the previous steps
The amount of time is converted to time, and the time
Addition (or subtraction) with respect to time, and when adding (or subtracting)
Is longer than the maximum (or minimum) time.
The maximum (or minimum) address is determined
Is done. By employing the above search method, the maximum
When an address near the (or minimum) address is specified
Even if the step amount is too large, the pickup 215
Does not jump out of the disc's information storage
Become. For some reason, the pickup 215
Jump out of the recording unit or use the above search method.
The pickup 215 is not
Figure 28 shows how to return to the outside mirror
This will be described below based on a flowchart. Pick up
Of the pickup 215 based on the output of the
Unit (information reading point) on the mirror surface where no information is recorded
It is determined in step 19 whether or not it has jumped out. Jumped out
Is determined, change the feed direction of the pickup 215
The beam spot is inverted (step 20), and the information
It is determined in step 21 whether or not entry has been made. Judgment that entered
Is set, the beam is output based on the output of the pickup 215.
The number of recording tracks on the disc
(Step 22) and the count reaches the specified number
Is determined in step 23, pick-up from that point
The reading operation by the step 215 is started. According to the above-mentioned return method, the disk is eccentric.
The beam spot in the information recording section
And the return position can be kept constant at all times
It is. Next, a special case during the performance is shown in FIG.
This will be described based on a flowchart. Pick-up during performance
If it is determined that the focus of step 215 is out of focus (step
24), the pickup 215 is moved to the home position.
(Step 25), and in Step 26 the pickup 215
When it is determined that the robot has returned to the home position,
Focus is taken again (step 27), then the final
To the read address, that is, the address immediately before defocus
Move the pickup 215 (step 28), and
The performance starts again from the lesson. Note that FIG.
As described, the latest read by the pickup 215
Address information is stored in the address memory 212,
When the focus is lost, it is stored in the address memory 212.
Last read address is the address just before defocus
It becomes. Also, the accessory switch 207 of the automobile
(Fig. 19) Turns off the main power during playing
If judged (step 29), loadin in step 30
Ejecting operation by the switching mechanism 214 is started (step
30) and whether the ejecting operation has started in step 31
It is determined whether or not a predetermined time has elapsed since the predetermined time has elapsed.
Stops the eject operation when it is determined that
Is in the initial state. Here, the predetermined time is defined as
When the operation is started, the container 22 shown in FIG.
Holding the disk 5 on the turntable 45 and pressing members 52
It takes until the disk 5 is sandwiched between
Time. By the above operation, when the power is turned off,
Can carry the disk 5 on the surface by the container 22
This prevents deformation of the disk 5 and pushes against the container 22.
Since the disc 5 is taught by the pressure member 52,
The disk 5 does not move up and down due to vibration of the disk. When the accessory switch 207 is turned off,
Not only when the main power is turned off, but also during the performance
The same operation is performed when
Thus, deformation of the disk can be prevented. Also, ahead
As mentioned, when used in combination with other sources
In, when other source input during performance,
When the main power supply to the
In this case, the low
Supply backup power to the
To perform the same operation as above.
To prevent the disk from being deformed as well.
become. After the performance is completed, the carriage 34 is moved to the movement limit position.
The carriage 34 and turntable 45 stop.
The motor 20 is stopped, and at the same time, the motor 20 starts the reversing operation. Subordinate
Thus, the tray 10, the moving members 13, 14, the container 22, the pressing portion
The material 52 is completely opposite to the operation during disc loading described above.
And can be returned to the stationary position before the performance. Ma
The carriage 34 was also returned to the home position.
You. Thus, the disk 5 is recovered.
You. It should be noted that, once the performance of the disk 5 has been completed,
The disc, push it slightly in the disc insertion direction.
The play start switch 93 shown in FIG.
Make and replay. Incidentally, the auto loading disc player
Layers are shown for vehicle use, but indoors for home use.
Needless to say, it can also be used. As described above, according to the present invention, the user
When a user inserts a disc,
Length and the ejected disc
The risk of contact with the
The disc at the position was once extracted from the disc player
You can play the disc without reinserting it later.
The operability is greatly improved because it can be
When used, safety is also improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view showing an entire in-vehicle auto-loading disc player according to the present invention. FIG. 2 is a plan view of the internal structure of the autoloading disc player. FIG. 3 is a front view of the internal structure of the autoloading disc player. FIG. 4 is a left side view of the internal structure of the autoloading disc player. FIG. 5 is a right side view of the internal structure of the autoloading disc player. FIG. 6 is a perspective view of a main part of the internal structure. FIG. 7 is a partially detailed view of the internal structure. FIG. 8 is a partially detailed view of the internal structure. FIG. 9 is a partially detailed view of the internal structure. FIG. 10 is a partially detailed view of the internal structure. FIG. 11 is a partially detailed view of the internal structure. FIG. 12 is a partially detailed view of the internal structure. FIG. 13 is a partially detailed view of the internal structure. FIG. 14 is a partial detailed view of the internal structure. FIG. 15 is a diagram for explaining the operation of the autoloading disc player. FIG. 16 is a diagram for explaining the operation of the autoloading disc player. FIG. 17 is a diagram for explaining the operation of the autoloading disc player. FIG. 18 is a diagram for explaining the operation of the autoloading disc player. FIG. 19 is a block diagram showing a control system. FIG. 20 is a block diagram showing a control system. 21 is a waveform chart of each part (a) to (d) in FIG. FIG. 22 is a circuit diagram of a reset circuit 209 in FIG. FIG. 23 is a circuit diagram of a reset circuit 211 in FIG. 19; FIG. 24 is a detailed view around the sub-microcomputer in FIG. 19; FIG. 25 is a circuit diagram of a drive unit of the pickup. FIG. 26 is a flowchart for explaining the operation of the control system shown in FIGS. 19 and 20; FIG. 27 is a flowchart for explaining the operation of the control system shown in FIGS. 19 and 20; FIG. 28 is a flowchart for explaining the operation of the control system shown in FIGS. 19 and 20; FIG. 29 is a flowchart for explaining the operation of the control system shown in FIGS. 19 and 20; [Description of Signs] 2 ... Housing 2b ... Lid 3 ... Front panel 3a ... Slot 5 ... Disk 6 ... Operation button group 6a ... Play start switch 8 ... Vibration isolating member 10 ... Tray 12, 105 Brackets 13, 14 Moving member 15 Guide bar 17 Interlocking shaft 19 Power transmission mechanism 20 Motor 20a Worm 22 Container 31 Slider 34 Carriage 35 Bias Screw 38 Motor 39 Pulley 45 Turntable 46 Spindle motor 52 Pressing member 61 First positioning member 62 Second positioning member 64 Coil spring 71 Small bracket 78 79 Fixing member 86 Prevention member 91 Guide member 93 Play start switch 98, 101, 103, 104 Detection switch 200 Host microcomputer 203 Sub microcomputer 209, 211 Reset circuit 212 Address memory 213 Backup memory 214 Loading mechanism 215 Pickup 220 Focus detection circuit 224 Temperature sensitive element 226 Semiconductor laser diode 229 Piezoelectric buzzer

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akihiko Okamoto 25-1, Nishimachi, Yamada, Kawagoe-shi, Saitama Prefecture Examiner, Kawagoe Factory, Pioneer Corporation Masahisa Kogome (56) References JP-A-56-114156 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) G11B 17/04

Claims (1)

(57) [Claims] When the disc is inserted into the disc player to a specific position, the disc is transported in the disc insertion direction. Disc transport means for transporting a disc; reproducing means for reproducing the disc transported by the transport means; and detecting means for detecting that the disc at the eject position has been pushed in the disc insertion direction after the end of the reproduction. Control means for controlling reproduction of the disc again based on a detection result of the detection means.