JPH09180333A - Recording medium carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move a carrier member and a connecting/disconnecting means by a single driving source and to start driving with a good timing by being initially driven by an engaging member integrally provided in the carrier member and to start receiving the supply of driving from a motor. SOLUTION: When a command for starting loading is issued, first, a motor 52 is rotated forward. Thus, a composite gear 49 is rotate forward, and in this case, a tray 5 having a crack 5p engaged with the gear is started to be moved backward (in a direction opposite to the direction of arrow Y), that is, a housing direction. The composite gear is engaged with the long linear part 55q of each portion of the rack 5p by a large diameter circular gear part 49b in a second stage from the position of the rack. Thus, the tray 5 is moved relatively fast.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium such as an optical information recording disk (hereinafter simply referred to as a disk),
The present invention relates to a recording medium conveying device that conveys a recording medium to an playing position via an insertion opening formed in a player housing.

[0002]

2. Description of the Related Art Conventionally, as such a recording medium carrying device, for example, a system shown in FIG. 21 is known. In the recording medium carrying device having the configuration shown in FIG. 21, a movable carrying member 253 capable of carrying the disc 252 so as to be housed in the player housing through an insertion opening 251a formed in the front panel portion 251 of the player housing. Have The carrying member 253 is mounted on a chassis (not shown) as a base member fixed in the player housing in the front-rear direction (arrow Y direction and the opposite direction).
And a flat rectangular parallelepiped container support member 255 movably attached to the container support member, and a flat plate-like container movably assembled to the container support member in the vertical direction (the arrow Z direction and the opposite direction) and capable of carrying the disk 252. And a container 256. Further, although not shown, a driving means for moving the container supporting member 255 with respect to the chassis and moving the container 256 with respect to the container supporting member is provided.

That is, in the state where the carrying member 253 including the container supporting member 255 and the container 256 is projected to the outside of the player housing, the disc 252 is placed on the container.
And then the container support member 255 is moved rearward so that the carrier member is housed in the player housing, and then the container 256 is lowered relative to the container support member 255 to cause the disc 252 to play. It is designed to be brought to. Although not shown, the above-mentioned drive means is a power transmission means for converting a motor as a drive source and a torque generated by the motor into linearly acting power and transmitting this to the container support member 255 and the container 256. And have.

[0004]

In the apparatus having such a structure, the torque generated by the motor is applied to the container supporting member 25.
5 and the movement of the container 256 need to be extremely complicated in order to be used for moving in a plurality of different directions, as well as for timing of both movements.

Further, the supporting member 2 has a simple structure.
It is conceivable to provide a motor for the movement of 55 and each movement of the container 256, but since a large number of motors and a large number of switches for controlling the drive start / stop timing of each motor are required, This leads to an increase in cost due to an increase in the number of parts.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a recording medium conveying apparatus which realizes movement of a plurality of members by a single drive source with a simple structure. To provide.

Further, it is another object of the present invention to provide a recording medium conveying device which can ensure the movement timing of the movement of each member with a simple structure.

[0008]

In a recording medium conveying device according to the present invention, a carrying member that is provided movably between a projecting position for carrying a recording medium and projecting with respect to a player housing and a storage position. A contacting / separating unit, which is provided to hold the recording medium conveyed in the player housing, and which relatively brings the disk-shaped pressing member and the turntable close to and away from each other, and the movement of the carrying member and the driving of the contacting / separating unit. A motor serving as both drive sources is provided, and the contacting / separating means is initially driven by an engaging member provided integrally with the carrying member to start receiving supply of a driving force from the motor.

[0009]

In the recording medium conveying apparatus having such a structure, the movement of a plurality of members is realized by a single drive source with a simple structure, and the other member is initially driven by one member. Since the driving force from the motor is supplied to the member, the timing of driving start can be surely achieved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An auto-loading disc player equipped with a recording medium transporting device as an embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, in the front panel portion of the player housing 1, a rectangular opening, that is, an insertion opening 1a for feeding a disk 3 as a recording medium to a playing device in the player housing is extended in the left-right direction. Is formed. In the figure, the direction indicated by the arrow X is the left direction, and the arrows Y and Z indicate the forward direction and the upward direction, respectively.

As shown in FIGS. 2 and 3, the tray 5 serving as a movable supporting member is moved forward and backward so as to reciprocate between the projecting position projecting with respect to the player housing 1 through the insertion port 1a and the storage position. It is provided so as to be movable in the directions (the arrow Y direction and the opposite direction). A decorative plate 5a for completely closing the insertion port 1a is provided at the front end of the tray 5. As shown in FIGS. 1 and 3, the front panel portion has a recess 1b around the insertion opening 1a.
Is provided, and the decorative plate 5a fits into this recess 1b. The tray 5 is slidably mounted on a chassis 6 as a base body fixedly provided in the player housing 1. More specifically, the tray 5 is formed in a flat rectangular parallelepiped shape and has protruding portions 5b at both left and right ends thereof so as to extend in the front-rear direction. As shown in FIG. Is formed with a guide groove 5c, and is slidably engaged with a guide protrusion 6a formed on the chassis 6 in the guide groove 5c. 5 to 8 show the details of the tray 5. The shapes of the overhanging portion 5b and the guide groove 5c are apparent from FIGS. 5, 6 and 8.

As shown in FIGS. 1 to 7, a circular recess 5d is formed on the upper side of the front half of the tray 5, and the turntable 1 is formed in a substantially disk shape in the recess.
0, the table bearing 11, and the lock plate 12, that is, the locking annular body are arranged so as to concentrically overlap each other in the vertical direction (the arrow Z direction and the opposite direction).

As is apparent from FIG. 4, the turntable 10 has a disk carrying plate 1 carrying a disk 3.
4 and a positioning protrusion 15 that fits in the center hole of the disk 3.
A boss 15 having a is concentrically connected to each other.
The turntable 10 is for holding the disc 3 together with a pressing member described later to rotate the disc. As is apparent from FIG. 4, a thin film-shaped table cloth 14a made of rubber or the like is attached on the disk carrying surface of the disk carrying plate 14.

As shown in FIGS. 2 and 4, a spindle 17 is fitted on a boss 15 which is a component of the turntable 10, and the spindle is rotatably supported by a table bearing 11. Specifically, as shown in FIGS. 2 and 4, the table bearing 11 includes a radial bearing 11a.
And a thrust bearing 11b, and the spindle 17 is supported by these bearings. An E-ring 17a is fitted on the lower end of the spindle 17 to prevent the spindle from coming off the table bearing 11.

As shown in FIGS. 2 and 4, the table bearing 11 pivotally supporting the turntable 10 is supported by the tray 5 via a single coil spring 19 as a second vibration isolator. The coil spring 19 is
A protrusion 5c protruding from the tray 5 is externally fitted and positioned at its lower end. As described above, by mounting the turntable 10 on the tray 5 using only the single coil spring 19, that is, the elastic member, a state in which the turntable 10 flexibly follows the rotation of the pressing member, which will be described later, is obtained. Shaft run-out during rotation is prevented.

Turntable 10 and table bearing 11
A lock plate 12 as a locking annular body disposed below the table locks the table bearing 11 and the turntable 10 pivotally supported by the table bearing 11 to the tray 5 and releases the locked state. It is a member for. This lock plate 1
2 is rotatably provided at the bottom of the circular recess 5d of the tray 5. On the outer peripheral portion of the lock plate 12, three arc-shaped elongated holes are formed at equal intervals in the circumferential direction thereof, and are projected on the bottom surface of the recess 5d as shown in FIGS. 1, 5 and 6. The three T-shaped projections 5f are slidably engaged with the elongated holes. Further, the lock plate 12 is formed in an annular shape, and, for example, five locking projections are formed on the inner periphery thereof so as to project toward the center of rotation of the lock plate. A taper surface is formed on the upper surface of the tip of each of the locking projections.

On the other hand, on the lower surface of the outer peripheral portion of the table bearing 11 to be locked by the lock plate 12, the same number of locked projections as the five corresponding locking projections face downward. Is projected. A tapered surface is also formed on the tip of each of the locked projections. The locking projection of the lock plate 12 engages with the tapered surface of the locked projection of the table bearing 11 when the lock plate rotates counterclockwise when the lock plate is viewed from above. On the contrary, when the lock plate 12 rotates clockwise, the engagement state is released. Both the tapered surface of the locking projection piece and the tapered surface of the locked projection piece are inclined downward (in the direction opposite to the arrow Z) in the counterclockwise direction. Therefore, as described above, the table bearing 11
Is float-supported on the tray 5 via the coil spring 19, so that if the tapered surface of the locking projection engages with and presses the tapered surface of the locked projection, the table is moved by the wedge action. The bearing 11 is slightly pushed upward (direction of arrow Z). As shown in FIG. 2, FIG. 4, FIG. 5 and FIG. 7, three L-shapes are provided on the tray 5 so as to contact the upper surface of the pushed up table bearing 11 at its upper side portion and receive it. -Shaped receiving pieces 5h are formed at equal intervals. That is, the table bearing 11 is locked by being vertically sandwiched by the receiving piece 5h and the locking projection of the lock plate 12. However, each of the receiving pieces 5h forms a gap with the table bearing when the locking projection is not engaged with the locked projection, that is, when the table bearing 11 is not pushed up. It is separated and does not contact the table bearing.

On the upper surface of the outer peripheral portion of the lock plate 12, 1
Two protrusions are formed, and the coil spring 22 is connected to the protrusions at one end thereof. The coil spring 22 is shown in FIG. The other end of the coil spring 22 is connected to a predetermined portion of the tray 5,
The lock plate 12 is biased counterclockwise. That is, the lock plate 12 is always biased by the coil spring 22 in a direction in which the tapered surface of the locking projection piece engages with the tapered surface of the locked projection piece of the table bearing 11.

On the other hand, as shown in FIG. 4, one pin 12g is projectingly provided at a predetermined portion on the lower surface of the outer peripheral portion of the lock plate 12. The pin 12g engages with a protrusion (not shown) projecting from a predetermined portion on the chassis 6 when the tray 5 is housed in the player housing 1, and is added by the protrusion as the tray 5 is housed. The reaction force generated causes the lock plate 12 to rotate clockwise in the coil spring 19
Rotate against the urging force of. As a result, the engagement state of the locking projection piece of the lock plate 12 with the locked projection piece of the table bearing 11 is released, and the table bearing 1
1 and the turntable 10 are unlocked with respect to the tray 5.

The above-mentioned coil spring 19, the pin 12g of the lock plate 12, and the protrusion (not shown) formed on the chassis 6 to engage with the pin cause the tray 5 to project relative to the player housing 1. The locking annular body rotating means for rotating the lock plate 12 as the locking annular body forward and backward in accordance with the storing operation is configured. Further, the locking annular body rotating means and the lock plate 1
2, the locked projection piece formed on the table bearing 11 so as to be able to engage with the locking projection piece provided on the lock plate, and the receiving piece 5h projectingly provided on the tray 5. Locking means for locking and unlocking the turntable 10 with respect to the tray is configured in association with the protruding and storing operation of the tray 5 with respect to the tray.

As described above, when the turntable 10 is projected to the outside of the player housing 1, the turntable 10 is firmly locked to the tray 5 by the locking means. The disk holding effect is obtained. As shown in FIGS. 2 to 4,
A movable base 25 formed in a rectangular plate shape is arranged above the chassis 6. On the movable base 25, a flat mechanical chassis 28 is attached via three float rubbers 27, that is, a first anti-vibration means made of an elastic member. Then, as shown in FIGS. 2 and 4, a carrying plate 30 is fixed to the lower surface of the mechanical chassis 28 by a plurality of machine screws 31. A motor 33 is attached to the carrying plate 30 so as to face downward, and the output shaft of the motor is brought into contact with the disk 3 to be played so that the turntable 1 can be rotated.
A disk-shaped pressing member 34 for pressing toward 0 is fitted. As shown in FIGS. 2 and 3, an optical pickup 36 is movably provided on the carrier plate 30 along the recording surface of the disc 3, and further includes a motor 37 to move the optical pickup. Pickup drive means is mounted.

The mechanical chassis 28 and the carrier plate 30 described above
The motor 33, the pressing member 34, the optical pickup 36, and the pickup driving means including the motor 37 constitute a playing means for playing the disk 3. FIG. 9 is an enlarged view of the movable base 25 in FIG. 2, but as is apparent from FIGS. 2 and 9 and FIGS. 4 and 10 and 11, the lower side of the movable base 25 on which the playing means is mounted. The chassis 6 located on the bottom surface 6b
And a pair of upright portions 6c and 6d extending upward from both left and right end portions of the bottom portion. The longitudinal movement cams 41 and 42 are provided on the compatible surface portions 6c and 6d, respectively.
Are attached so as to be movable in the front-rear direction (the direction of the arrow Y and the opposite direction). For details, as is apparent from FIG. 12, two moving cams 41 and 42 have two upper end portions.
T-shaped guide grooves 41a and 42a are formed on each line, and are formed on the upper ends of the compatible surface portions 6c and 6d of the chassis 6.
U-shaped projection 6f (illustrated in FIGS. 2, 4, 9 and 10)
Is slidably engaged with the guide groove.

On the other hand, as shown in FIGS. 2 and 4, the movable base 25 is provided with four pins 25b, two on the left side and two on the right side, at the lower end thereof. These pins 25b are slidably fitted in four guide grooves 6h formed by vertically extending on the respective upright portions 6c and 6d of the chassis 6, whereby the movable base 25 is mounted on the chassis. 6 will guide you up and down.

The pins 6h projecting from the movable base 25 are also slidably fitted in cam holes 41b and 42b formed in the moving cams 41 and 42, respectively. As is particularly apparent from FIG. 12, the cam hole 41b formed in the moving cam 41 arranged on the left side is generally downward (opposite to the arrow Z direction) toward the front (arrow Y direction).
It is designed to incline. Further, the cam hole 42b formed in the other moving cam 42 disposed on the right side is inclined as a whole toward the front and upward. That is, when both the moving cams 41 and 42 relatively reciprocate in the front-rear direction, the movable base 25 reciprocates in the up-down direction.

As shown in FIGS. 2 and 4 and FIG.
Between the left and right moving cams 41 and 42, the chassis 6
A synchronous lever 44 is disposed on the lower surface side of the chassis, and is rotatably attached to a round hole 6j formed in a bottom surface 6b of the chassis 6 by a pin 44a protruding substantially in the center thereof. There is. The details of the synchronization lever 44 are shown in FIGS. 13 and 14. As shown in FIGS. 2, 4 and 9, two claw portions 6k are provided on the bottom surface portion 6b of the chassis 6 so as to sandwich the round hole 6j and project downward, and the pin portion of the synchronization lever 44 is attached to the synchronization lever 44. 2 formed so as to sandwich 44a
The guide grooves 44c and 44d of the strip are slidably engaged with the respective claw portions. This guides the rotation of the synchronization lever 44. As is clear from FIGS. 10, 13 and 14,
Long holes 44e and 44f are formed at both ends of the synchronizing lever 44, and one pin 41d and 42d projecting from the lower end portions of both moving cams 41 and 42 is fitted and inserted into each long hole. ing. Since the moving cams 41 and 42 and the synchronization lever 44 are disposed so as to sandwich the bottom surface portion 6b of the chassis 6, the pins 41d and 42d of the both moving cams 41 and 42 are formed on the bottom surface portion. It protrudes to the lower surface side of the chassis 6 through an elongated opening 6m (shown in FIGS. 2 and 9), and the elongated hole 4 of the synchronization lever 44 is formed at this protruding portion.
It is fitted in 4e and 44f.

As described above, the left and right moving cams 41 and 4
Since 2 is connected by the synchronizing lever 44, both moving cams reciprocate in synchronization with each other. As shown in FIGS. 2, 10, 13 and 14, an arc gear portion 44g is formed at a predetermined portion of the free end portion of the synchronizing lever 44, and
One pin 44h is projected upward at a predetermined position on the upper surface of the synchronizing lever. The pin 44h is slidably engaged with a cam groove 5j formed on the lower surface of the tray 5 as shown in FIG. As is apparent from the figure, the cam groove 5j is formed by a long straight portion 5k extending from the rear end portion of the tray 5 toward the front and a front end portion of the straight portion 5k continuously directed toward the left front. It is composed of a short linear portion 5n extending in a vertical direction and an arcuate portion 5m continuously extending to the left rear from the front end portion of the linear portion 5n. The tray 5 and the synchronization lever 44 are
Since the bottom portion 6b of the chassis 6 is sandwiched between the pins 44h, the pins 44h project toward the top surface of the chassis 6 through the arc-shaped openings 6n (shown in FIG. 9) formed in the bottom portion. The protruding portion is fitted in the cam groove 5j.

On the other hand, the arc-shaped gear portion 44g formed on the synchronous lever 44 together with the pin 44h is a receiving plate 47 (FIGS. 2 and 10) which is fastened to the chassis 6 by a screw or the like.
(Shown in FIG. 2) can mesh with a compound gear 49 rotatably supported. However, as is clear from FIG. 15, the compound gear 49 has a configuration in which first to fourth circular gear portions 49a to 49d having different diameters are concentrically coupled to each other at their side end faces in the rotation center axis direction. The circular gear portion 49d at the bottom is an arc gear portion 44g of the synchronous lever 44.
It is made possible to mesh with.

As shown in FIGS. 2, 10 and 11, a pulley 51 is rotatably attached to the lower surface of the chassis 6 in front of the compound gear 49. As shown in FIGS. 3 and 9, the motor 52 is mounted downward at the rear end of the chassis 6, and the small pulley 52a fitted to the output shaft of the motor and the pulley 5 described above.
A belt 53 is laid around the belt 1. A circular gear portion 51a is integrally formed on the upper surface side of the pulley 51,
The circular gear portion 49c at the third stage from the top included in the above-described compound gear 49 and the circular gear portion 51a mesh with each other.
As is clear from FIGS. 2, 10 and 14, an arc-shaped opening 44j is formed in the synchronization lever 44, and the circular gear portion 51a is inserted through the opening.

The above-mentioned motor 52 and the circular gear portion 51a
The pulley 51 including the above, the small pulley 52a, and the belt 53 constitute a torque applying unit that applies a torque to the composite gear 49. The compound gear 49 described above has four
It has two circular gear parts 49a to 49d.
Of these, the top and second circular gear parts 49a and 49
b is a rack 5p formed on the tray 5 so as to extend in the moving direction thereof as shown in FIGS. 4, 6, 7 and 8.
Meshes with FIG. 16 shows a state where the rack 5p is viewed with the bottom surface of the tray 5 facing upward. This FIG. 16 and FIG.
As is clear from the above, the rack 5p formed on the tray 5
Is a long linear portion 5q extending forward from the rear end portion of the tray 5, a curved portion 5r continuous to the front end portion of the linear portion 5q, and the above-mentioned continuous portion to the front end portion of the curved portion. Straight part 5
It consists of a short linear portion 5s extending in the same direction as q.
Of these, the long linear portion 5q meshes with the large-diameter circular gear portion 49b at the second stage from the top of the compound gear 49, and the other short linear portion 5s has the uppermost small-diameter circular gear portion 49a. Mesh with. The curved portion 5r interposed between the linear portions 5q and 5s meshes with the arc-shaped relay gear portion 49e formed so as to connect the circular gear portions 49a and 49b, as is particularly clear from FIG. .

By the above-described compound gear 49, the rack 5p formed on the tray 5 so as to mesh with the compound gear 49, and the torque applying means (described above) configured to include the motor 52 and the like to apply torque to the compound gear 49, the tray is provided. A drive means for reciprocating 5 is configured. Further, the drive means, the tray 5, and the chassis 6 as a base body for guiding the tray.
A recording medium carrying device for carrying the disk 3, which is a recording medium, to the playing position is constituted by the above.

Further, the compound gear 49, the above-mentioned torque applying means for applying a torque to the compound gear 49, including the motor 52, the moving cams 41 and 42, the synchronizing lever 44,
A guide groove 6h formed in the chassis 6 for guiding the movable base 25 up and down, and peripheral small members related to these guide grooves allow the playing means including the pressing member 34 to be relative to the evening table 10 on the tray 5. And a contacting / separating means for moving close to and away from each other.

Here, the assembling relationship between the above-mentioned playing means and the first anti-vibration means (described above) made of the float rubber 27 as three elastic members for supporting the playing means in the float state with respect to the player housing 1 will be described in detail. I will describe. 2 and 3
As shown in FIG. 3, these three float rubbers 27 are arranged at a substantially equal distance from the rotation center axis of the motor 33, and hence the pressing member 34, in a plane orthogonal to the rotation center axis. The center of gravity G (shown in FIG. 3) of the playing means is set on this rotation center axis. With such a configuration, the pressing member 34 does not cause shaft wobbling when the disc is rotated, and therefore surface wobbling of the disc is prevented and the disc is smoothly played.

By the way, as shown in FIGS. 2, 9 and 10, at a predetermined position on the lower surface of the chassis 6, a detection switch 81 and a pin 82a (shown in FIG. 9) provided therein are made swingable. Protrusion 82b formed on the free end of the lever
An intermediate lever 82 that engages the operating element 81a of the detection switch 81 to activate the operating element 81a is attached. As shown in the figure, the swinging portion of the intermediate lever 82 is formed in a substantially triangular shape, and as shown in FIG. 10, when the synchronizing lever 44 is engaged with this swinging portion, the counter lever in FIG. It swings clockwise and activates the detection switch 81. The detection switch 81 and the intermediate lever 82 are for judging completion of storage of the tray 5 in the player housing 1 and completion of clamping of the disc, and as shown in FIG. 17, the detection signal issued from the detection switch 81. Is sent to the CPU 85 that controls the operation of the disc player, that is, the control unit. As shown in FIG. 17, the CPU 85 is also supplied with detection signals from detection switches 86 provided at other places.
The CPU 85 cooperates with the RAM 89 in accordance with a signal from each detection switch and a switch group of the operation unit 87 (shown in FIG. 17) on the front panel along with a control program stored in the ROM 88 in advance, and cooperates with each motor 33. , 37 and 52 are rotationally driven.

Next, the operation of the auto-loading disc player having the above-mentioned structure will be described with reference to the operation explanatory diagrams of FIGS. The description of the operation starts from the state where the tray 5 is projected to the outside of the player housing 1 as shown in FIGS. As shown in FIG. 1, with the tray 5 protruding outside the player housing 1, the disc 3 to be played is placed on the turntable 10 mounted on the tray. At this time, the turntable 10 is locked to the tray 5 by the lock plate 12 locking the table bearing 11 by the biasing force of the coil spring 22 as described above.
Therefore, the turntable 10 does not rock during the mounting of the disc and the loading operation described later.

After the disk 3 is placed on the turntable 10, a loading start command is issued by operating the operation unit on the front panel to start the loading operation. When the loading start command is issued, first, the motor 52 is normally rotated. Therefore, the compound gear 49
Rotates in the normal direction, and the tray 5 including the rack 5p meshing with the composite gear starts moving backward (in the direction opposite to the arrow Y direction), that is, in the storage direction. As shown in FIG.
The composite gear 49 is provided with a large-diameter circular gear portion 49b (see FIG. 15) of the second stage from the top of each portion of the rack 5p from the time when the tray storing operation is performed to the time when it is almost finished. It meshes with the long straight portion 5q. Therefore, the tray 5 moves relatively quickly. When the tray 5 is near the end of the storing operation, the composite gear 49, as shown in FIGS. 19 and 20, has an arc-shaped relay gear part 49e continuous with the circular gear part 49b and a circular gear part 49a having a small diameter, and the rack 5p. The curved portion 5r and the short linear portion 5s are sequentially meshed with each other. Therefore, the tray 5 is gradually decelerated smoothly.

On the other hand, the cam groove 5j formed on the lower surface of the tray 5 is
The long linear portion 5h is in sliding contact with the pin 44h on the synchronizing lever 44. Then, when the storing operation reaches the final stage, a short slanted linear portion 5n continuous with the linear portion 5h comes into sliding contact with the pin 44h. As a result, the synchronizing lever 44 is rotated counterclockwise in FIG. 10 by a slight angle, and the arc-shaped gear portion 4 formed on the synchronizing lever 4 is rotated.
4g meshes with the circular gear portion 49d (see FIG. 15) provided at the lowermost stage of the compound gear 49 described above. Therefore, this meshing triggers to rotate the synchronizing lever 44 largely in the clockwise direction in FIG. 10 by the compound gear 49 that rotates to complete the storing operation of the end plate of the tray 5.
From the position shown by the solid line in the figure to the position shown by the chain double-dashed line. Therefore, as is clear from FIG. 10, the synchronization lever 4
Left and right moving cams 41 and 4 pivotally attached to both ends of
2 are moved backward and forward, respectively. Due to the relative movement of the two moving cams 41 and 42, the movable base 25, which is in sliding contact with the cam holes 41b and 42b of the two moving cams by the pin 25b, starts to descend.

As described above, the tray 5 storing operation,
In addition, when the movable base 25 is lowered, and each of these operations is completed, the synchronizing lever 44 engages with the swinging portion of the intermediate lever 82 as shown in FIG. Swing clockwise. Therefore, the protrusion 82b formed on the intermediate lever 82 is not
The first actuator 81a is engaged and operated. As a result, the detection signal is issued from the detection switch 81, and the CP
U85 (shown in FIG. 17) stops motor 52. In this state, the disc 3 is held by the turntable 10 and the pressing member 34.

When the synchronizing lever 44 swings as described above, the pin 44h protruding from the synchronizing lever moves from the linear portion 5n of the cam groove 5j of the tray 5 shown in FIG. 8 to the arc portion 5m. To do. As a result, the tray 5 is locked with respect to the player housing 1. Thus, the performance is ready. In this state, the lock plate 12 is disengaged from the table bearing 11 against the urging force of the coil spring 22, and the table bearing and the turntable 10 are floated only by the coil spring 19. It becomes a state.

When the performance is ready as described above, the motor 33 rotates to rotate the disk 3 and the motor 3
7 (shown in FIG. 3) rotates, the optical pickup 36 is operated, and the performance is started. When the performance is completed, the disc 3 is returned to the outside of the player housing 1. However, the disc returning operation is performed in the reverse process of the above-mentioned disc loading operation, and therefore the detailed description thereof will be omitted.

In the above embodiment, the composite gear 49 is attached to the chassis 6 which is the fixed side, and the rack 5p which meshes with this is formed on the tray 5 which is the movable side.
On the contrary, the composite gear 49 may be provided on the tray 5 with the rack fixed.

[0041]

As described above in detail, in the recording medium conveying apparatus according to the present invention, the carrying member is provided so as to be movable between the projecting position for carrying the recording medium and projecting with respect to the player housing and the storage position. A contacting / separating means for holding the recording medium conveyed in the player housing between the disk-shaped pressing member and the turntable, and a moving / contacting / separating means for the supporting member. The contacting / separating means is initially driven by an engaging member provided integrally with the carrying member to start receiving a driving force from the motor.

In such a structure, the supporting member and the contacting / separating means are moved by a single driving source by a simple structure, and the contacting / separating means is initially driven by the supporting member to drive the contacting / separating means. Since it is supplied, the timing of driving start can be surely achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front panel portion of an auto loading disc breaker as an embodiment of the present invention.

2 is a diffusion exploded perspective view of the internal structure of the auto-loading disc player shown in FIG. 1. FIG.

3 is a plan view of the internal structure shown in FIG. 2. FIG.

FIG. 4 is a view taken along the line IV-IV in FIG.

5 is a plan view of a tray included in the internal structure shown in FIG. 2. FIG.

6 is a VI-VI cross-sectional view with respect to FIG.

7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a view on arrow VIII-VIII relating to FIG. 7;

9 is a diffusion exploded perspective view of a chassis, a motor, a detection switch and the like included in the internal structure shown in FIG.

10 is a view on arrow XXII-XXII with respect to FIG. 4. FIG.

11 is a view on arrow XXIII-XXIII relating to FIG. 10. FIG.

12 is a perspective view of a pair of moving cams included in the internal structure shown in FIG.

13 is a vertical cross-sectional view of a synchronization lever included in the internal structure shown in FIG.

FIG. 14 is a bottom view of the synchronizing lever shown in FIG.

15 is a perspective view of a compound gear included in the internal structure shown in FIG.

16 is a plan view of the gear shown in FIG. 5 for meshing with the compound gear shown in FIG.
FIG. 9 is a perspective view of a rack formed on the tray shown in FIGS.

FIG. 17 is a block diagram of an operation control system of the auto loading disc player shown in FIGS. 1 to 20.

FIG. 18 is an operation explanatory diagram of a main part of the auto loading disc player shown in FIGS. 1 to 20;

FIG. 19 is an operation explanatory diagram of a main part of the auto loading disc player shown in FIGS. 1 to 20;

20 is an operation explanatory view of a main part of the auto loading disc player shown in FIGS. 1 to 20; FIG.

FIG. 21 is an overall perspective view of a disc player equipped with a conventional recording medium carrying device.

[Description of Signs of Main Parts]

 1-Player player 3-Disc (recording medium) 5-Tray 5P-Rack 5r-Bent section 6-・ Chassis (base) 10 ・ ・ Turn table 11 ・ ・ Table bearing 12 ・ ・ ・ Lock plate (locking annular body) 14 ・ ・ ・ ・ ・ ・ Disk carrying plate 15 ・... Boss 17 ... Spindle

Claims (1)

[Claims] 1. A carrying member that holds a recording medium and is movably provided between a projecting position where the recording medium projects toward a player housing and a storage position, and a recording medium that is carried in the player housing. The contacting / separating means for relatively bringing the disk-shaped pressing member and the turntable closer and apart from each other, and a motor serving as a drive source for both the movement of the carrier member and the driving of the contacting / separating means, The recording medium conveying device, wherein the contacting / separating means is initially driven by an engaging member provided integrally with the carrying member to start receiving a driving force from the motor.