JPS63293750A - Front loading disk player - Google Patents

Abstract

PURPOSE:To make it possible to play both the sides of plural disks without executing ejecting operation in and to suppress the expansion of the whole player by providing the titled player with a carrier to be single member and plural trays. CONSTITUTION:The trays 23, 24 mounted on the carrier to be optionally moved in a 1st prescribed direction from a player housing 2 and carrying disks 22 are up so as to be optionally moved in two directions, i.e. the 1st prescribed direction from the carrier 4 and a 2nd prescribed position e.g. rectangular to the 1st one. The carrier 4 is prepared as a single member and plural trays 23, 24 are also prepared. Respective trays 23, 24 selectively moved from the the carrier 4 between the storing position and playing position. Consequently, plural disks 22 can be continuously played and the expansion of the whole player can be suppressed at the minimum by reducing the operating strokes of respective trays 23, 24.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to front loading disc players.

BACKGROUND ART In a front-loading disc player, when a disc to be played is moved from outside the player housing to the playing position, that is, on the turntable, and positioned, the disc is moved in a first direction parallel to the disc supporting surface of the turntable and in a first direction parallel to the disc supporting surface of the turntable. Conveyance is performed in two directions, a second direction substantially perpendicular to the second direction. As shown in FIG. 18, in a conventional front-loading disc player, a player housing 101 is
1st direction (direction of arrow Y and its opposite direction)
a carrier 102 that is movable between a protruding position and a storage position; a tray 104 that is movable on the carrier in the second direction (the direction of the arrow 2 and the direction opposite thereto) and that can support the disk 103; It has a carrier drive means (not shown) for moving the carrier, and a tray drive means (not shown) for moving the tray relative to the carrier.

That is, the disc 103 is placed on the tray 104 on the carrier with the carrier 102 protruding outside the player housing 101, and then the carrier 102 is moved to the storage position and the tray 104 is placed on the turntable 105. The disc is placed on the turntable 105 by moving the disc toward the turntable 105. Furthermore, when collecting a disc after it has been played, the reverse operation is performed.

The conventional front-loading disc player described above stores one disc and plays one side of the disc in the stored state.When playing both sides of the disc or playing several discs, The ejecting and loading operations have to be repeated in order to flip and replace the disc, which is annoying to the listener.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and its purpose is to make it possible to play both sides of a plurality of discs without performing an eject operation, and to increase the size of the player as a whole. An object of the present invention is to provide a front-loading disc player that minimizes problems.

A front-loading disc player according to the present invention includes a tray for carrying a disc provided on a carrier movable in a first predetermined direction relative to the player housing, and a tray for carrying a disc in the first predetermined direction relative to the first carrier and in a direction opposite to the first predetermined direction relative to the first carrier. The carrier is movable in two directions, for example, a second predetermined direction perpendicular to each other, the carrier is a single member, and a plurality of trays are provided.

Embodiments Hereinafter, a front loading disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 indicates the entire front loading disc player.

As shown in FIG. 1, a front panel 3 constituting the front surface of the player housing 2 is provided with a rectangular opening 3a extending in the left-right direction so that the carrier 4 can protrude to the outside of the player housing. ing. However, the left-right direction referred to herein refers to the front direction indicated by arrow Y, and the direction of arrow X is to the left. Also, arrow 2
indicates upward. A keyboard 5 for operating the disc player is provided on the left side of the opening 3a.

As is particularly clear from FIG. 2, the carrier 4 is formed in the shape of a rectangular parallelepiped with an open top and rear surface, and as shown by solid lines and two-dot chain lines in FIG. It is movable between the storage position and the protruding position in the front-rear direction (direction of arrow Y and the opposite direction) as a first predetermined direction. Specifically, as shown in FIGS. 4 to 6, there are two
A total of 4 longitudinal projections 4 extending in the front-back direction in parallel with each other.
A is formed, and as shown in FIG. 5, a guide roller 6 is engaged with each of the longitudinal protrusions in a sandwiched manner. Further, as shown in FIGS. 5 and 6, a single groove 4b is formed on the left side of the lower surface of the carrier 4, extending in the moving direction of the carrier 4 and over the entire length of the carrier.
A cylindrical guide member 7 fixed to the player housing 2 is in sliding contact with the groove 4b. Thereby, the carrier 4 is guided in the front and back direction with high precision without swinging in the left and right directions (in the direction of arrow X and the opposite direction).

Of the two longitudinal protrusions 4a formed on the left side of the carrier 4, the upper one is provided with a rack portion 4C over substantially its entire length. As shown in FIGS. 4 to 6, a gear 9a is meshed with the rack portion 4C, and the carrier 4 includes a gear reduction mechanism 9 with this gear 9a as the final stage gear, toothed belt wheels 10a, 10b, and It is moved by a motor 11 via a toothed belt 10c. These gear reduction mechanisms9. Toothed belt wheels 10a, 10b, toothed belt 10
c and the motor 11 constitute carrier driving means for moving the carrier 4.

For example, as shown in FIGS. 1 and 2, a movable chassis 13 is provided within the carrier 4.

The movable chassis 13 moves in the front-rear direction (the direction of arrow Y and the opposite direction) and the left-right direction (the direction of arrow X and the opposite direction)
A flat part 13a extending in the left and right sides of the flat part 13a, and an vertical part 1 continuously extending upward (in the direction of arrow Z) at both left and right ends of the flat part.
3b and 13c. Figures 2, 4 to 7
As shown in the figure, the left and right vertical surfaces 13 of the movable chassis 13
A pair of moving members 14 and 15 extending in the front-rear direction (arrow Y direction and the opposite direction) are provided on the outer surfaces of b and 13C so as to be reciprocatable in the front-rear direction. 8th
The details of each moving member 14.15 are shown in the figures (ω-C) and in FIGS. 9 (ω-C).

As shown in FIGS. 2, 4 to 7, a total of four bins 13d are provided, two each protruding from the left and right vertical surfaces 13b and 13c of the movable chassis 13. As shown in FIGS. 2, 5 to 7, each of these bottles 13d is inserted into a guide groove 4e formed in the left and right walls of the carrier 4 and extending in the vertical direction (in the direction of arrow Z and the opposite direction thereof). The movable chassis 13 is slidably fitted, thereby guiding the movable chassis 13 in the vertical direction.

Bins 13d protrude from both left and right sides of the movable chassis 13
Not only the guide groove 4e of the carrier 4 but also each moving member 1
It is slidably engaged with cam grooves 14a and 15a formed in cam grooves 4 and 15, respectively. Cam groove 14a formed in one moving member 14 disposed on the left side of movable chassis 13
is formed as a whole so as to be inclined downward (in the opposite direction of arrow 2) toward the front (in the direction of arrow Y). Further, the cam groove 15a formed in the other moving member 15 is formed so as to be inclined upwardly toward the front as a whole.

That is, each cam groove 1 is arranged so that when the moving members 14 and 15 move relative to each other, the movable chassis 13 moves up and down.
4a and 15a are formed.

Each of the cam grooves 14a and 15a consists of three short linear portions 14 extending in the moving direction (back and forth direction) of each moving member 14 and 15.
b, 14c, 14d, 15b, 15c, 15d, and two slanted parts 14e, 14f, 15e, 15f that are continuous with each tooth line part and inclined with respect to the straight part,
The overall shape is a stepped cam groove. Accordingly, as each moving member 14, 15 moves, the movable chassis 13 moves in two stages.

As shown in FIGS. 2, 4, 5, and 8 (ω and (C)), the moving member 1 disposed on the left side of the movable chassis 13
4, a rack portion 14g is formed along the moving direction of the moving member. As shown in FIGS. 4 and 5, the final stage gear 17a of the gear reduction mechanism 17 provided on the carrier 4 meshes with this rack portion 14g. Moving member 1
4 is this gear reduction mechanism 17, toothed belt wheel 18a, 1
8b, a toothed belt 18c, and a motor 19, the driving force is applied by a driving force applying means.

As shown in FIG. 4, between the left and right movable members 14 and 15, a rotary support shaft 20a extending in the vertical direction (in the direction of arrow Z and the opposite direction) is connected to the carrier 4 at the center thereof. A rotary lever 20 is rotatably attached, and bins 20b and 20c projecting from both ends of the rotary lever parallel to the rotary support shaft 20a are connected to the left and right moving members 14 and 15. They are smoothly engaged with the respective notches 14h and 15h.

On the above-mentioned movable chassis 13, two trays 23 and 24 each capable of carrying a disk 22 (shown in FIG. 1) are arranged in a predetermined direction in the vertical direction (the two directions of arrows and the opposite direction) as a second predetermined direction. They are provided so as to overlap with each other with a gap in between. Note that the movable chassis 13 and the moving member 14.
Each tray 2
A second tray driving means is configured to move the tray 3.24 relative to the carrier 4 in the vertical direction as a second predetermined direction (the direction of the arrow 2 and the opposite direction).

Tray 2 in Figure 10 (a) to C) and Figure 11.
3 details are shown. However, Fig. 11 is similar to Fig. 10 (
It is a sectional view of XI-XI regarding ω. Note that the other tray 24 has the same structure as this tray 23, and will not be described in detail.

As shown, the tray 23 has a first disk 22 having a diameter Dl carrying a disk 22 (first illustration) having a diameter of about 30 (to).
A disk supporting surface 23a and a second disk supporting surface 23b having a diameter of D2 and supporting a disk (not shown) having a diameter of about 20 (up to) are formed concentrically. As is particularly clear from FIG. 11, the second disk supporting surface 23b, which supports a disk having a diameter of 20 cm, is different from the first disk supporting surface 23a.
The recess is formed with a depth equal to or greater than the thickness of the disk. A recess 23c is formed at the front end of the tray 23 for inserting a finger under the disk when recovering the disk supported on the first and second disk supporting surfaces 23a and 23b. Needless to say, this recess 2
3c from the first disk supporting surface 23a is the second
It is larger than the depth dimension of the disk supporting surface 23b.

Each of the above-mentioned trays 23 and 24 is movable relative to the movable chassis 13 supporting them, and therefore relative to the carrier 4, in the front-rear direction (direction of arrow Y and the opposite direction) as a first predetermined direction. There is. As shown in FIG. 4, FIG. 5, and FIG. The right end portion is slidably engaged. Further, as shown in FIG. 5, each left end of each tray 23, 24 is connected to a
It is in sliding contact with a guide member 28 and a guide plate 29 provided on 3. With this configuration, each tray 23 and 2
4 is smoothly guided in the front-back direction. 10th
As shown in Figures (a) to C), the tray 23 has a block 2 that is slidably fitted into the guide shaft 25.
3d, a steel ball 23e and a hemispherical protrusion 23f that come into sliding contact with the guide member 28 and the guide plate 29. Note that the tray 24 is also provided with blocks, steel balls, and hemispherical protrusions in the same manner.

As shown in FIGS. 4, 5, and 7, a pair of pulleys 31b and 31c on which a wire 31a is installed is provided at the right end of the movable chassis 13. This wire 3
1a is connected to the tray 23. The pulley 31b is
Gear reduction mechanism 31d.

A rotational force is applied by the motor 32 via the toothed belt pulleys 31e, 31f and the toothed belt 31g.

That is, as the motor 32 rotates forward and backward, the tray 23 reciprocates in the front and rear directions. In addition, as shown in FIGS. 4 and 5,
A wire 33a for reciprocating the tray 24, a pulley 33b, a 33e% gear reduction mechanism 33d, and toothed belt pulleys 33e and 33f.

A toothed belt 33g and a motor 34 are provided.

The wires 31al and 33a described above, and the pulley 31b,
31c, 33b, 33c and gear reduction mechanism 31d, 33
d, and toothed belt wheels 31e, 31f.

33e, 33f, toothed belts 31g, 33g, and motors 32 and 34, each tray 23° 24 is moved relative to the carrier 4 in the front-rear direction (direction of arrow Y and its opposite direction) as a first predetermined direction. A first tray driving means for moving the tray is configured. In addition, each tray 23,
24 is moved between a first position directly above the carrier 4 and a second position protruding to the rear of the carrier 4, as shown in FIG.

Furthermore, the first tray driving means, the aforementioned second tray driving means, the trays 23 and 24, and the carrier 4,
A disc transport mechanism is configured to carry a disc 22 (shown in the first diagram) to be played and transport it to a playing position within the player housing 2.

As described above, the trays 23 and 24 are provided on the carrier 4 that moves between two positions, the protruding position and the storage position, in the front-rear direction with respect to the player housing 2, and each tray is moved in the front-rear direction with respect to the carrier. Since the trays are movable between the first and second positions, as is clear from FIG. Another performance position can be easily set at the innermost part of the player housing 2.

As shown in FIGS. 2 to 4, 6, 7, and 12, a turntable 37 is disposed at the innermost part of the player housing 2, and the turntable extends in the left-right direction. It is supported by a support member 38 that is present. A rotation support shaft 39 extending in the left and right direction is provided at both left and right end portions of the support member 38, and is rotatably held by a pair of bearings 40 and 41 fixed to the player housing 2. There is. As shown in FIGS. 4 and 12, a carriage 43 carrying an optical pickup means is disposed on the support member 38, and the carriage 43 carries an optical pickup means along a plane parallel to the disk carrying surface of the turntable 37. In this case, the support member 3 is movably moved in the left and right direction (in the direction of arrow
It is attached to 8. Also, a worm 45 screwed into a half nut 43a (shown in the fourth figure) provided on the carriage 43, a worm wheel 46a1 for applying rotational force to the worm, a worm 46b, and a motor 4.
7, and a carriage driving means for moving the carriage 43 is provided. As shown in FIG. 12, the carriage 43, guide shaft 44, worm 45, motor 47, etc. are mounted on a swing plate 48 that is swingably provided on the support member 38 via a pin 48a.
is placed above. The swing plate 48 swings in a plane perpendicular to the disk supporting surface of the turntable 37, and is provided with a drive source for swinging the swing plate.This configuration provides tilt servo.

As shown in FIG. 12, a longitudinal bracket 50 is mounted on the support member 38 parallel to the support member. An arm member 51 is swingably attached to the longitudinal bracket 50 via a pin 51a, and a disk-shaped pressing member 52 is rotatably attached to the free end of the arm member.

This suppressing member 52 presses the disc conveyed to the performance position against the turntable 37 to perform a disc clamping action. A cam member 53 having a spiral cam surface 53a is rotatably provided on the longitudinal bracket 50 and engages with the arm member 51. As the cam member rotates, the arm member 51 swings. The pressing member 52 is attached to and detached from the turntable 37 by moving.

The cam member 53 is a gear reduction mechanism 5 including a worm 54a.
4 and is rotationally driven by a motor 55. Further, a spring member 56 is provided that biases the arm member 51 in a direction in which the pressing member 52 approaches the turntable 37.

The above-described arm member 51, pressing member 52, cam member 53, gear reduction mechanism 54, motor 55, and spring member 56 constitute a disk clamp mechanism. Further, the disk clamp mechanism, the turntable 37, the optical pickup means and the tilt servo means described above constitute a playing means for playing the disk.

The entire playing means is mounted on the support member 38 mentioned above. As mentioned above, the support member 38 is connected to the rotation support shaft 3.
9 and bearings 40 and 41. Therefore, the playing means can rotate between a position corresponding to the lower surface of the disc 22 transported to the playing position by the disc transport mechanism and a position corresponding to the upper surface of the disc.

As shown in FIGS. 4 and 12, the pivot axis 38a of the support member 38 is parallel to the moving direction of the carriage 43 carrying the optical pickup means. With this configuration, the space within the player housing 2 is effectively utilized, dead space is minimized, and the overall size of the player is reduced. Further, this pivot axis 38a extends in the front-back direction (
It is perpendicular to the arrow Y direction and the opposite direction), and this configuration also allows for the miniaturization of the player as a whole.
In particular, it has become easier to downsize the player in the width direction.

Next, the driving means for rotating the support member 38 supporting the playing means including the turntable 37 will be explained.

As shown in FIGS. 4, 6 and 12, the support member 3
A disc-shaped member 61 is fitted onto a rotary support shaft 39 protruding from the left end of the support member 8, and rotates together with the support member.

A gear 62 is also rotatably attached to the rotation support shaft 39 on the left side of the disc-shaped member 61. As is particularly clear from FIG. 6, pins 61a, 61b, 62a, and 62b are implanted in each main surface of the disc-shaped member 61 and the gear 62, and coil springs 61C and 61d are installed between each pin. has been done. That is, as the gear 62 rotates forward or backward, each coil spring 61
The disc-shaped member 61 and the support member 38 are configured to rotate via the shafts 61c and 61d. The gear 62 is
Double gear 63a, worm 63b, toothed belt wheel 63
A rotational force is applied by the motor 64 via the toothed belt 63c, 63d and the toothed belt 63e.

An engagement pin 38b is protruded from the left end of the support member 38, and when the engagement pin engages a pair of stoppers 67a and 67b fixed to the player housing 2, the support member 38 is positioned in the normal position and the reversed position.

The above-described disk-shaped member 61, the coil spring 61c,
61d, gear 62, double gear 63a, worm 63b, toothed belt wheel 63C263d, toothed belt 63e, motor 64, stoppers 57a and 67b,
These and related peripheral small members constitute a driving means for rotating a support member 38 on which a playing means such as a turntable 37 is mounted. The drive means, the support member 38, and a pivot mechanism that includes bearings 40 and 41 and pivots the support member 38 move the disc to a first position corresponding to the lower surface of the disc that has reached the playing position. A playing means moving mechanism is configured to rotationally move the playing means between a second position corresponding to the upper surface and a second position corresponding to the upper surface.

The distance between the disc supporting surfaces of the turntable 37 when the playing means is in the first position and the second position, that is, when the supporting member 38 is in the normal position and the reversed position, is the distance between the disc 22 (FIG. 1 and 12) is made equal to the thickness dimension t (shown in FIG. 12). In addition, as shown in FIGS. 4 and 12, the turntable 3
The pivot axis 38a of the support member 38 passes through the intersection of a plane passing through the center of the thickness of the disk 22 placed on the turntable 7 and the rotation center of the turntable.

With this configuration, the positions of the discs on the turntable 37 are equal when the playing means is in the first and second positions.

As shown in FIG. 6, the distance between the disk supporting surfaces of the trays 23 and 24, which are provided on the carrier 4 so as to overlap each other, is a. On the other hand, as is clear from FIG. 8) and FIG.
Step-shaped cam grooves 14a formed in each moving member 14, 15 for intermittently moving in the vertical direction together with 3.
and 15a is a in which the amount of downward movement of the first stage of the movable chassis 13 is equal to the distance between the disk supporting surfaces of each tray.
, and the movement amount of the second stage is set to be b. With this configuration, each of the two discs 22 that are sequentially transported onto the turntable 37 by the aforementioned disc transport mechanism is set to the same position in the vertical direction (the two directions of the arrows and the opposite direction). This can be easily achieved.

Next, each detection switch arranged in each part of the disc player will be explained.

As shown in FIGS. 4 and 5, a portion of the carrier 4 is engaged with the left front portion of the player housing 2, thereby indicating whether the carrier is in the protruding position or the retracted position with respect to the player housing. Detection switches 71 and 72 are provided for detection.

As shown in FIG. 4, four detection switches 73 and 74 are provided at the left rear end of the carrier 4 so as to be able to engage with the moving member 14.
．． 75 and 76 are provided.

When the movable member 14 reciprocates in the front-rear direction (direction of arrow Y and its opposite direction), the movable chassis 13 carrying each tray 23, 24 moves in the vertical direction (direction of arrow Z and its opposite direction).
The detection switch 76 is used to detect that the movable chassis 13 is in the lower position. Further, the detection switch 74 is provided to detect that the movable chassis 13 is in the middle position, and the detection switch 75 is provided to detect that the movable chassis 13 is located between the lower and middle positions. There is. On the other hand, a detection switch 77 is provided at the right rear end of the carrier 4 so as to engage with the other moving member 15 . This detection switch 77 is for detecting that the movable chassis 13 has reached the upper position, and the above-mentioned detection switch 73 is for detecting that the movable chassis 13 is located between the middle position and the upper position. .

In addition, as shown in FIGS. 4 and 5, the movable chassis 1
3 has a detection device that engages with a predetermined contact member 78 (shown in FIG. 5) fixed to the player housing 2 to additionally detect that the movable chassis 13 has reached the upper position. A switch 79 is provided.

The right front end of the movable chassis 13 is engaged with a portion of each of the two trays 23 and 24, so that each tray is positioned at a position corresponding to the center of the movable chassis 13 and, therefore, the center of the carrier 4. Two detection switches 81 and 82 are provided for detecting that there is a Further, the right rear end of the movable chassis 13 is provided with a carrier 4 by engaging with a portion of each tray 23, 24.
Two detection switches 83 and 84 for detecting that the position protruding backward from the camera, that is, the performance position has been reached.
is provided. At the right rear end of the movable chassis 13,
Another detection switch 85 is provided near these two detection switches 83 and 84. This detection switch 85 engages with the upper tray 23 when the upper tray 23 protrudes rearward with respect to the carrier 4 and a part of the tray protrudes further rearward than the position where it engages with the detection switch 83. It operates at ℃.

As shown in FIG. 4, a carriage 43 carrying an optical pickup means is mounted on the support member 38 carrying the playing means, and the disk 22 (shown in FIGS. 1 and 12)
A detection switch 87 for detecting that the disc 22 has reached the innermost circumferential position of the information recording area, and a photosensor 88 for detecting that the transported disc 22 is mounted on the turntable 37 are provided. There is.

As shown in FIG. 6, a support member 38 supporting the playing means
The bracket 90, which is disposed on the left side of the support member and supports the motor 64, engages with an engagement protrusion 61f that protrudes from a disc-shaped member 61 (shown in Figure 12) fixed to the left end of the support member. Two detection switches 91 and 92 are provided to enable the detection.

These two detection switches 91 and 92 are connected to the support member 38.
is in the normal position or the reversed position, that is, whether the playing means mounted on the support member is in the first position corresponding to the lower surface of the disc or in the second position corresponding to the upper surface of the disc. It is something to detect.

Detection signals emitted from each of the detection switches and sensors described above are transmitted to a control circuit 95 shown in FIG. 13, and the control circuit operates each motor and pickup means at timings described later in accordance with each detection signal. urge

Next, the operation of the front-loading disc player having the above-mentioned structure will be briefly explained along with the playing procedure with reference to FIGS. 14 to 17(f).

Note that the explanation of the operation will begin with the carrier 4 protruding from the player housing 2 as shown in FIG. Furthermore, in this state, the upper tray 23 of the two trays 23 and 24 is at the position where it most protrudes rearward (in the opposite direction of arrow Y) with respect to the carrier 4.

As shown in FIG. 1, once the disc 22 to be played is placed on each of the lays 23 and 24 on the carrier 4 protruding from the player housing 2, the keyboard 5 is operated to start playing the disc.

As is clear from FIG. 17 (field f), when a disk performance start command is issued, it is first checked whether the performance means including the turntable 37 is in the correct position (
Step: 83) Then, the motor 11 rotates normally (Step=11), and the carrier 4 is housed in the player housing 2 together with the trays 23 and 24 that maintain the above-mentioned positions. Immediately before the carrier 4 reaches the storage position, the motor 32 is reversed (step: 89), and the upper tray 23 is moved forward (in the direction of arrow Y) by a predetermined distance from the above position. It is positioned at the performance position directly above. Further, the lower tray 24 is located at the center of the carrier 4, that is, at the storage position. After this, the motor 19 rotates forward (step: 512), and each tray 23
, 24 are lowered from the upper position to the lower position together with the movable chassis 13 carrying them, and the disk 22 on the upper tray 23 is placed on the turntable 37. Then, the motor 55 rotates forward (step 816) to clamp the disk, and then the motor 47 rotates (step 519), causing the carriage 43 carrying the optical pickup means to start moving. Then, the lower surface of the disc is played. When the performance on the bottom of the disc is finished, the disc clamp is released (step: 5).
27), the motor 19 is reversed (step: S29> the movable chassis 13 is moved to the middle position. As a result, the disk 22 is moved from the top of the turn pull 37 to the top tray 23. The disk 22 is placed again. upper tray 2
3 is returned directly above the carrier 4 by the reverse rotation of the motor 32 (step: 532).

Next, the performance of the upper surface of the disc 22 on the upper tray 23 is started as described below.

The motor 64 rotates normally (step: 535), and the performance means including the turntable 37 rotates to the reverse position as shown in FIG. 13 is lowered to the lower position. After this, the motor 32 rotates normally (step: 54
1) L, the upper tray 23 is moved to the performance position, and the disc 22 on the upper tray is located directly below the turntable 37. Next, the motor 19 reverses (step: 844)
Then, the movable chassis 13 is raised to an intermediate position between the lower position and the middle position, and following this operation, the motor 55 rotates normally (
Step: 547) and the disk is clamped.

That is, when the playing means is in the inverted position for playing on the top of the disc 22, the disc is clamped after the tray 23 and the movable chassis 13 carrying the tray are brought close to the -H turntable 37.

When the disk clamping is completed in this way, the disk 22
begins to play on the top.

When the upper surface of the disc 22 has been played, the motor 55 is rotated in reverse (step: 558) and the disc clamp is released. By this disc clamp release operation, the disc 22 that has been pressed against the turntable 37 is transferred onto the upper tray 23. Thereafter, the motor 32 is reversely rotated, and the upper tray 23 is returned directly above the carrier 4.

Next, playing on the lower side of the disc placed on the lower tray 24 is started.

First, as shown in FIG. 15, it is checked whether the playing means has been returned to the normal position (step: 564).
. Next, the motor 19 reverses (step: 870),
The movable chassis 13 rises to the upper position. In this state, the motor 34 rotates forward (step: 573) and the lower tray 24
is moved to a performance position directly above the turntable 37. Thereafter, the motor 19 rotates normally (step 576), the movable chassis 13 is lowered to the middle position, and the disk 22 on the lower tray 24 is mounted on the turntable 37. Then, the motor 55 rotates normally (step: 583)
At the same time, the motor 47 rotates forward (step 587), the carriage 43 begins to move, and the lower surface of the disc 22 is played. When the performance of the lower surface of the second disc 22 is completed, the disc clamp is released and the motor 19 is reversed (step: 597).
Then, the movable chassis 13 rises to the upper position (step: 598). This lifting of the movable chassis 13 causes the disk 22 on the turntable 37 to move onto the lower tray 24. Then, the motor 34 reverses (step; 5100)
L, the lower tray 24 carrying the disk 22 again is returned directly above the carrier 4.

Next, the top surface of the disc on the lower tray 24 is played.

The motor 64 rotates forward (step: 5103), and the performance means including the turntable 37 is rotated to the reverse position as shown in FIG. 16, and at the same time, the motor 19 rotates forward (step: 5106). The movable chassis 13 is lowered to the middle position. Next, the motor 34 rotates normally (step: 5109), and the lower tray 24 moves directly above the turntable 37. Thereafter, the motor 19 is reversed (step: 8112) L, and the movable chassis 13 is raised to an intermediate position between the upper stage position and the middle stage position. Then, the motor 55 rotates forward (step: 5115) to clamp the disk, and the spindle motor rotates (step: 5118).
,, The carriage 43 is moved by the rotation of the motor 47 (step: 5119), and the upper surface of the disc 22 is played.

When the upper surface of the second disc has finished playing, the motor 55
is reversed (step: 5126) and the disk clamp is released. By this disc clamp release operation, the disc that has been pressed against the turntable 37 is returned onto the lower tray 24. After this, the motor 34 reverses,
The lower tray 24 is moved directly above the carrier 4.

When both sides of the two discs have been played, the motor 19 is reversed (step 5132) L, and the movable chassis 13 carrying the trays 23 and 24 is moved to the upper position.

After this, the motor 11 reverses (step: 5135) L,
The carrier 4 is a movable chassis 13 and each tray 23, 24
It is also made to protrude outside the player housing 2. Along with this, the motor 32 rotates forward (step: 5138)
However, only the upper tray 23 moves rearward, resulting in the state shown in FIG.

In this embodiment, a plurality of trays 23 are provided.
．． Although only one carrier 4 is provided for carrying these trays 24, it is also possible to provide a separate carrier for each tray 23 and 24, respectively. However, by sharing a carrier for a plurality of trays, the number of parts is reduced and the structure is simplified, making it easier to downsize and reduce the cost of the player as a whole. Effects of the Invention As detailed above, in the front loading disc player according to the present invention, the tray supporting the disc, which is provided on the carrier movable in the first predetermined direction with respect to the player housing, is mounted on the carrier. It is movable in two directions: the first predetermined direction and a second predetermined direction, for example, perpendicular to the first predetermined direction.

Because of this configuration, the tray can be moved to two positions, a protruding position and a retracted position with respect to the player housing, and another playing position located at the innermost part of the player housing. Therefore, it is possible to eject the disc by providing two pickup means to sandwich the disc carried on the tray that has reached the playing position, or by providing one pickup means movable to pick up both sides of the disc. This allows you to play both sides of the disc without having to do so.

Further, in the front loading disc player according to the present invention, the carrier is a single member, and a plurality of the trays are provided.

Therefore, by selectively moving each of these trays with respect to the carrier between the storing position and the playing position, it is possible to play a plurality of discs in succession. In addition, although multiple trays are provided, there is only one carrier that supports each tray, so compared to the case where a dedicated carrier and its drive mechanism are provided for each tray individually. The number of parts is reduced and the structure is simplified, making it easier to reduce the size and cost of the player as a whole.

Furthermore, in the front-loading disc player according to the present invention, the disc is moved between the three positions, the protruding position, the storage position, and the playing position, by the relative movement of the two members, the carrier and the tray. The individual operating strokes of the carrier and tray can be made smaller, and as a result, the increase in size of the player as a whole can be minimized.

As a result, it is possible to minimize the increase in size of the player as a whole.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire front loading disc player as an embodiment of the present invention, FIG. 2 is a perspective view of main components of the internal structure of the front loading disc player, and FIG. 3 is a schematic diagram of the internal structure. A plan view, FIG. 4 is a plan view including a partial cross section of the internal structure, and FIGS. 5 to 7 are a v-■ arrow view, a VI-Vl arrow view, and a ■-■ arrow view, respectively, with respect to FIG. 4. 8 (ω to 11 are partial detailed views of the internal structure, and FIG. 12 is a
-X■ arrow view, Figure 13 is a diagram showing the configuration of the drive control system in the disc player, Figures 14 to 16 are diagrams for explaining the operation of the disc player, Figure 17 (Tanai F+ is a flowchart for explaining the operation of the disc player, and Fig. 18 is a diagram showing the main parts of a conventional front-loading disc player. Explanation of symbols of main parts 2...Player housing 4 ...Carrier 11.19, 32.34.47, 55.64...
・Motor 13...Movable chassis 14.15...Moving member 20...Rotating lever 22...Disc 23.24...Tray 37... Turntable 38... Support member 40. 41... Bearing 43... Carriage 51... Arm member 52... ...Press member 71.72.73.74.75.76.77°79.8
1.82.83.84.85, 87°91.92...
...Detection switch 88...Photo sensor

Claims (1)

[Claims] A front loading disc player having a disc transport mechanism for carrying a disc to be played and transporting it to a playing position within a player housing, the disc transport mechanism being located at a first position relative to the player housing.
a carrier provided movably in a predetermined direction; a tray provided movably on the carrier in the first predetermined direction and a second predetermined direction and capable of supporting a disk; and a carrier driving means for moving the carrier. ,
tray driving means for moving the tray relative to the carrier, the carrier being a single member;
A front loading disc player characterized in that a plurality of the trays are provided.