JPH0736248B2 - Front loading disk player - Google Patents

Description

TECHNICAL FIELD The present invention relates to a front loading disc player.

BACKGROUND ART In a front-loading disc player, when a disc to be played is moved from the outside of the player housing to a playing position, that is, on a turntable to be positioned, a first direction parallel to the disc carrying surface of the turntable and the disc carrying surface are arranged. 2 in the second direction, which is almost perpendicular to
Transport in the direction. As shown in FIG. 18, in the conventional front loading disc player, in order to carry out this transportation, the player housing 101
Against the above-mentioned first direction (arrow Y direction and the opposite direction)
A carrier 102 movably between a protruding position and a storage position, and a tray 104 movably provided on the carrier in the second direction (the arrow Z direction and the opposite direction) and capable of carrying a disk 103, Carrier driving means (not shown) for moving the carrier, and tray driving means (not shown) for moving the tray with respect to the carrier.
And have.

That is, with the carrier 102 protruding outside the player housing 101, the disk 103 is placed on the tray 104 on the carrier, and then the carrier 102 is moved to the storage position and the tray 104 is placed on the turntable 105. By moving the disk toward the turntable 105
It will be installed on top. The reverse operation is performed when the disc that has finished playing is collected.

The above-mentioned conventional front-loading disc player stores one disc and plays one side of the disc in the stored state. When playing both sides of the disc or when playing several discs, The ejecting operation and the loading operation have to be repeated in order to invert and replace the disc, which gives the listener a troublesome feeling.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to perform double-sided performance of a disk or performance of a plurality of disks without performing an eject operation, and moreover, the entire player. It is to provide a front loading disc player that minimizes the increase in size.

In the front loading disc player according to the present invention, a tray, which is provided on a carrier movable in a first predetermined direction with respect to a player housing and carries a disc, has a tray in the first predetermined direction and with respect to the carrier. For example, it is characterized in that it can be moved in two directions of a second predetermined direction that is orthogonal.

Examples Hereinafter, a front loading disc player as an example 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, the front panel 3 forming 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 project to the outside of the player housing. ing. However, the left-right direction referred to here is toward the front indicated by the arrow Y, and the arrow X direction is the left side. The arrow Z indicates upward. On the left side of the opening 3a, a keyboard 5 for operating the disc player is provided.

As is particularly apparent from FIG. 2, the carrier 4 is formed in a rectangular parallelepiped shape with the upper surface and the rear surface being open, and as shown by the solid line and the chain double-dashed line in FIG. It is movable in the front-rear direction (the arrow Y direction and the opposite direction) as the first predetermined direction between the storage position and the protruding position. Specifically, as shown in FIGS. 4 to 6, two long protrusions extending in the front-rear direction are provided in parallel with two left and right sides of the carrier 4 in parallel.
4a is formed, and as shown in FIG. 5, the guide roller 6 is engaged with each of the longitudinal protrusions so as to be sandwiched therebetween. In addition, as shown in FIGS. 5 and 6, the carrier 4
On the left side of the lower surface of the carrier 4, a single groove 4b extending in the moving direction of the carrier 4 and over the entire length of the carrier is formed.
A cylindrical guide member 7 fixed to the player housing 2 is in sliding contact with the groove 4b. This makes carrier 4
Is guided in the front-rear direction with high accuracy without swaying in the left-right direction (the arrow X direction and the opposite direction).

Of the two long protrusions 4a formed on the left side of the carrier 4, the upper one is provided with a rack portion 4c over substantially the entire length. As shown in FIGS. 4 to 6, a gear 9a is meshed with the rack portion 4c, and the carrier 4 has this gear.
Gear reduction mechanism 9 with final gear 9a, toothed belt wheel 10
It is moved by a motor 11 via a, 10b and a toothed belt 10c. These gear reduction mechanism 9, toothed belt wheel 10a,
10b, the toothed belt 10c, 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 in the carrier 4. Movable chassis 13
Is a plane portion 13a extending in the front-rear direction (arrow Y direction and the opposite direction) and in the left-right direction (arrow X direction and the opposite direction), and on both left and right ends of the plane portion continuously upward (arrow Z direction). ), And the raised surface portions 13b and 13c. As shown in FIGS. 2 and 4 to 7, a pair of movements extending in the front-rear direction (the arrow Y direction and the opposite direction) are formed on the outer surfaces of the left and right upright portions 13b and 13c of the movable chassis 13. Members 14 and 15 are provided so as to be reciprocally movable in the front-rear direction. 8 (a) to 8 (c) and 9 (a) to 9 (c) show details of the moving members 14 and 15, respectively.

As shown in FIG. 2, FIG. 4 to FIG. 7, the left and right upright portions 13b and 13c of the movable chassis 13 are respectively provided with two pins, four pins 13d in total. 2 and 5 to 7
As shown in the drawing, these pins 13d are slidably fitted in guide grooves 4e formed on the left and right wall portions of the carrier 4 in the vertical direction (arrow Z direction and the opposite direction). As a result, the movable chassis 13 is guided in the vertical direction.

The pins 13d protruding from the left and right sides of the movable chassis 13 are
Not only the guide groove 4e of the carrier 4 but also the moving members 14 and 15
Are slidably engaged with the cam grooves 14a and 15a respectively formed in the. The cam groove 14a formed in the one moving member 14 arranged on the left side of the movable chassis 13 is formed so as to be inclined forward (in the arrow Y direction) and downward (in the opposite arrow Z direction) as a whole. . Further, the cam groove 15a formed in the other moving member 15 is formed so as to be inclined forward and upward as a whole. That is, each moving member 14 and
The cam grooves 14a and 15a are formed so that the movable chassis 13 moves up and down when 15 moves relatively.

Each of the cam grooves 14a and 15a has three short linear portions 14b, 14c, 14d, which extend in the moving direction (front-back direction) of each moving member 14, 15.
15b, 15c, 15d and two slanted portions 14e, 14f, 15e, 15f which are continuous with each of the linear portions and are inclined with respect to the linear portions, forming a step-like cam groove as a whole. ing. Therefore, the movable chassis 13 moves intermittently in two steps as the moving members 14 and 15 move.

As shown in FIGS. 2, 4, 5, 8 (a) and 8 (c), the moving member 14 disposed on the left side of the movable chassis 13 is shown.
A rack portion 14g is formed on the rack 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 the rack portion 14g. The moving member 14 includes the gear reduction mechanism 17, the toothed belt wheels 18a and 18b, and the toothed belt 18c.
The driving force is applied by the driving force applying means including the motor 19 and the motor 19.

As shown in FIG. 4, between the left and right moving members 14 and 15, there is a pivotal support shaft 20a extending in the up-down direction (the arrow Z direction and the opposite direction) on the carrier 4 at its central portion. A turning lever 20 rotatably attached is provided, and pins 20b, 20c projecting parallel to the turning support shaft 20a at both ends of the turning lever are provided on the left and right moving members 14 and 15. The notches 14h and 15h formed respectively are smoothly engaged.

On the movable chassis 13 described above, two trays 23 and 24, each of which can carry a disk 22 (shown in FIG. 1), are arranged in a predetermined vertical direction (arrow Z direction and the opposite direction) as a second predetermined direction. It is provided so as to overlap with a gap. The movable chassis 13, the moving members 14 and 15, the rotating lever 20, the motor 19 and the like for applying the driving force to the moving member 14 and the peripheral small members related thereto. Thus, a second tray drive means for moving the trays 23, 24 with respect to the carrier 4 in the vertical direction (the arrow Z direction and the opposite direction) as the second predetermined direction is configured.

Details of the tray 23 are shown in FIGS. 10 (a) to (c) and FIG. However, FIG. 11 is a sectional view taken along line XI-XI of FIG. 10 (a). The other tray 24 has the same structure as the tray 23 and will not be described in detail.

As shown, the tray 23 has a disc with a diameter of about 30 cm.
The first disk carrying surface 23a having a diameter D ₁ carrying 22 (first shown) and the second disk carrying surface 23b having a diameter D ₂ carrying a disk (not shown) having a diameter of about 20 cm are concentric. Is formed in. As is clear from Fig. 11, the diameter is 20 cm.
The second disk carrying surface 23b carrying the disk is formed as a recess having a depth greater than the thickness of the first disk carrying surface 23a. At the front end of the tray 23, there is formed a recess 23c for inserting a finger under the discs when the discs carried on the first and second disc carrying surfaces 23a, 23b are collected. Needless to say, the depth of the recess 23c from the first disk carrying surface 23a is the second dimension.
It is larger than the depth dimension of the disk carrying surface 23b.

The trays 23 and 24 described above are movable in the front-rear direction (the arrow Y direction and the opposite direction) as the first predetermined direction with respect to the movable chassis 13 that carries them, and thus the carrier 4. 4, 5 and 7
As shown in the drawing, the right end portions of the trays 23 and 24 are slidably engaged with the two guide shafts 25 and 26, which are provided on the right side portion of the movable chassis 13 and extend in the front-rear direction. is doing. Also, as shown in FIG. 5, each tray 23,2
Each left end of 4 is a guide member 2 provided on the movable shear 13.
It is in sliding contact with 8 and the guide plate 29. With this configuration, the trays 23 and 24 can be smoothly guided in the front-rear direction. As shown in FIGS. 10A to 10C, the tray 23 has a block 23d slidably fitted to the guide shaft 25, and a steel ball 23e and a hemisphere slidingly contacting the guide member 28 and the guide plate 29. The protrusion 23f is provided. The tray 24 is also provided with blocks, steel balls and hemispherical protrusions in the same manner as this.

As shown in FIGS. 4, 5, and 7, the movable chassis
A pair of pulleys 3 each having a wire 31a installed on the right end of 13
1b and 31c are provided. This wire 31a is in tray 23
Are linked to. The pulley 31b includes a motor 32 through a gear reduction mechanism 31d, toothed belt wheels 31e and 31f, and a toothed belt 31g.
The rotational force is given by. That is, the tray 23 is configured to reciprocate in the front-rear direction by the forward and reverse rotations of the motor 32. Further, as shown in FIGS. 4 and 5, the wire 33a for reciprocating the tray 24, the pulleys 33b and 33c, the gear reduction mechanism 33d, the toothed belt wheels 33e and 33f, the toothed belt 33g and the motor 34 are provided. It is provided.

Wires 31a, 33a described above, and pulleys 31b, 31c, 33b, 33c,
Gear reduction mechanism 31d, 33d and toothed belt wheel 31e, 31f, 33e, 33f
And a toothed belt 31g, 33g, and the motors 32, 34 for moving the trays 23, 24 relative to the carrier 4 in the front-rear direction (the arrow Y direction and the opposite direction) as the first predetermined direction. Tray drive means is configured. The trays 23 and 24 are, as shown in FIG.
It is moved between a first position which is directly above the carrier 4 and a second position which projects rearward of the carrier 4.

Further, the first tray drive means, the second tray drive means described above, the trays 23 and 24, and the carrier 4 carry a disk 22 (first shown) to be played, and this is carried in the player housing 2. The disk transport mechanism is configured to transport the disk to the performance position.

As described above, the trays 23, 24 are provided on the carrier 4 that moves between the projecting position and the storage position in the front-rear direction with respect to the player housing 2, and the trays are arranged in the front-rear direction with respect to the carrier. In the above first and second
Since it is movable between the positions, as is apparent from FIG. 3, the moving position of each tray is not only the projecting position with respect to the player housing 2 and the storage position but also the innermost part of the player housing 2. The performance position as another position can be easily set.

As shown in FIGS. 2 to 4, 6, 7, and 12, a turntable 37 is arranged at the innermost portion of the player housing 2, and the turntable extends in the left-right direction. It is supported by existing support members 38. Support member
A rotary support shaft 39 extending in the left-right direction is provided at both left and right ends of the player 38, and the player housing 2
It is rotatably held by a pair of bearings 40 and 41 that are fixed to the. As shown in FIGS. 4 and 12, the support member 38
Carriage 43 carrying optical pickup means on top
Is arranged, and along the plane parallel to the disk carrying surface of the turntable 37, in this case, movably in the left-right direction (the arrow X direction and the opposite direction) via the guide shaft 44. Is attached to. Further, the half nut 43a (fourth nut) provided on the carriage 43
Worm 45 screwed to (shown), worm wheel 46a, worm 46b for imparting rotational force to the worm
And a motor 47, and a carriage drive means for moving the carriage 43 is provided. As shown in FIG. 12, the carriage 43, the guide shaft 44, the worm 45, the motor 47, and the like are mounted on the support member 38 with a pin 48a.
It is provided on a swing plate 48 that is swingable through the. The oscillating plate 48 oscillates in a plane perpendicular to the disk carrying surface of the turntable 37, and a drive source for oscillating the oscillating plate is provided, and a tilt servo is performed by this configuration.

As shown in FIG. 12, a longitudinal bracket is provided on the support member 38.
50 is mounted parallel to the support member. An arm member 51 is swingably attached to the longitudinal bracket 50 via a pin 51a, and a disc-shaped pressing member 52 is rotatably attached to a free end portion of the arm member. The pressing member 52 presses the disc conveyed to the playing 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 so as to engage with the arm member 51, and the arm member 51 swings as the cam member rotates. The pressing member 52 is moved to be attached to and detached from the turntable 37. The cam member 53 is rotationally driven by the motor 55 via the gear reduction mechanism 54 including the worm 54a. In addition, the pressing member 52 is a turntable.
A spring member 56 for urging the arm member 51 in the direction approaching 37 is provided.

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

The entire playing means is mounted on the support member 38 described above. As described above, the support member 38 is pivotally supported by the pivotal support mechanism including the rotation support shaft 39 and the bearings 40 and 41. Therefore, the playing means can rotate between the position corresponding to the lower surface of the disk 22 and the position corresponding to the upper surface of the disk 22 which has been transferred to the performance position by the disk transfer mechanism.

As shown in FIGS. 4 and 12, the pivot axis 38a of the support member 38 is a carriage 4 carrying an optical pickup means.
It is parallel to the moving direction of 3. With such a configuration, the space inside the player housing 2 is effectively used, the dead space is suppressed to the minimum, and the player is downsized as a whole. Further, the pivot axis 38a is perpendicular to the front-rear direction (the arrow Y direction and the opposite direction) which is the disc transport direction, and this configuration also reduces the size of the player as a whole, especially in the width direction of the player. It is easy to downsize.

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

As shown in FIG. 4, FIG. 6 and FIG. 12, a disc-shaped member 61 is fitted on the rotary support shaft 39 projecting from the left end portion of the support member 38. Rotate. A gear 62 is rotatably attached to the left side of the disk-shaped member 61 on the rotation support shaft 39. As is particularly clear from FIG. 6, the pins 61a, 61 are provided on the main surfaces of the disk-shaped member 61 and the gear 62, respectively.
b, 62a, 62b are planted, and coil springs 61c and 61d are installed between the pins. That is, the disk-shaped member 61 and the support member 38 are configured to rotate via the coil springs 61c and 61d by the forward or reverse rotation of the gear 62. The gear 62 is given a rotational force by the motor 64 via the double gear 63a, the worm 63b, the toothed belt wheels 63c and 63d, and the toothed belt 63e.

An engaging pin 38b is provided at the left end of the supporting member 38 so as to project. The engaging pin engages with a pair of stoppers 67a and 67b fixed to the player housing 2 to support the supporting member 38. Are positioned in the forward and reverse positions.

The above-mentioned disc-shaped member 61 and coil springs 61c and 61d
With the gear 62, the double gear 63a, the worm 63b, the toothed belt wheels 63c and 63d, the toothed belt 63e, the motor 64, the stoppers 67a and 67b, and peripheral small members related thereto, A driving means for rotating a support member 38 having a playing means such as a turntable 37 mounted thereon is configured.
Further, the drive means, the support member 38, and the pivotal support mechanism that pivotally supports the support member 38 including the bearings 40 and 41, and the first position corresponding to the lower surface of the disk that has reached the playing position and the position of this disk. A playing means moving mechanism for rotating the playing means between the second position corresponding to the upper surface and the second position is constituted.

The distance between the disk carrying surfaces of the turntable 37 when the playing means is in the first position and the second position, that is, when the support member 38 is in the normal position and the reverse position,
Thickness of disk 22 (shown in Figures 1 and 12): t
(Shown in Figure 12). Further, as shown in FIGS. 4 and 12, the intersection of the plane passing through the center of the thickness of the disk 22 placed on the turntable 37 and the center of rotation of the turntable 37 is taken as the pivot axis of the support member 38. 38a is designed to pass. With this configuration, the positions of the disks on the turntable 37 are equal when the playing means is in the two positions of the first and second positions.

As shown in FIG. 6, the distance between the respective disc carrying surfaces of the trays 23 and 24 provided on the carrier 4 so as to overlap each other is a. On the other hand, as is clear from FIGS. 8 (b) and 9 (b), each tray is attached to the movable chassis 13
Together with the stepwise cam grooves 14a and 15a formed in the moving members 14 and 15 for intermittent movement in the vertical direction.
Is set such that the moving amount of the first stage of the movable chassis 13 toward the lower side is a which is equal to the distance between the disc carrying surfaces of the trays, and the moving amount of the second stage is b. With this configuration, the positions to be positioned in the vertical direction (the arrow Z direction and the opposite direction) of each of the two disks 22 that are sequentially transferred onto the turntable 37 by the disk transfer mechanism described above are set to the same position. Is easily realized.

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

As shown in FIGS. 4 and 5, a part of the carrier 4 is engaged with the left front part of the player housing 2 to determine whether the carrier is in the projecting position or the storing position with respect to the player housing. Detection switches 71 and 72 for detection are provided.

As shown in FIG. 4, a moving member is provided at the left rear end of the carrier 4.
Four sense switches 73,74,75 and
76 is provided. When the moving member 14 reciprocates in the front-rear direction (the arrow Y direction and the opposite direction), the movable chassis 13 carrying the trays 23 and 24 is intermittently operated in two steps in the vertical direction (arrow Z direction and the opposite direction). Although it reciprocates, the detection switch 76 is for detecting that the movable chassis 13 is at the lower position. Also, the detection switch
74 is for detecting that the movable chassis 13 is in the middle position, and the detection switch 75 is provided for detecting that the movable chassis 13 is located between the lower position and the middle position. 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. The detection switch 77 is for detecting that the movable chassis 13 has reached the upper position, and the detection switch 73 is for detecting that the movable chassis 13 is located between the middle position and the upper position. . As shown in FIGS. 4 and 5, a predetermined contact member fixed to the player housing 2 is provided at the front end of the movable chassis 13.
A detection switch 79 is provided which engages with 78 (shown in FIG. 5) and complementarily detects that the movable chassis 13 has reached the upper position.

The right front end of the movable chassis 13 is engaged with a part of each of the two trays 23 and 24, so that each tray has a position corresponding to the central part of the movable chassis 13 and hence the central part of the carrier 4. There are two detection switches 81 and 82 for detecting the presence of the. Further, the right rear end portion of the movable chassis 13 is engaged with a part of each of the trays 23 and 24 so that each tray reaches a position projecting rearward with respect to the carrier 4, that is, a playing position. Two detection switches 83 and 84 for detecting the are provided. These two detection switches are on the right rear end of the movable chassis 13.
Another detection switch 85 is provided near 83 and 84. The detection switch 85 engages with the tray 23 when the upper tray 23 projects rearward with respect to the carrier 4 and a part of the tray projects further rearward than the position where the tray engages with the detection switch 83. It operates by doing.

As shown in FIG. 4, a supporting member on which playing means is mounted.
On the 38, a detection switch 87 for detecting that the carriage 43 carrying the optical pickup means has reached the vicinity of the innermost position of the information recording area of the disk 22 (shown in FIGS. 1 and 12), The transported disc 22 is the turntable 37.
A photo sensor 88 for detecting that the photo sensor 88 is attached is provided.

As shown in FIG. 6, a bracket 90, which is arranged on the left side of the supporting member 38 supporting the playing means, carries a motor 64 and the like.
Includes a disc-shaped member 61 fixedly provided at the left end of the support member.
Two detection switches 91 and 92 are provided so as to be able to engage with the engaging protrusion 61f protrudingly provided (shown in FIG. 12). In these two detection switches 91, 92, whether the support member 38 is in the normal position or the inverted 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. It is to detect whether the disk is in the second position corresponding to the upper surface of the disk.

The detection signals emitted from the above-mentioned detection switches and sensors are transmitted to the control circuit 95 shown in FIG. 13, and the control circuit operates the respective motors and the pickup means at the timings described later according to the respective detection signals. Excuse me.

Next, the operation of the front loading disc player having the above-mentioned configuration will be briefly described along the playing procedure with reference to FIGS. 14 to 17 (f). It should be noted that, as for the operation description, as shown in FIG.
Start with the outside protruding. Also, in this state, 2
The upper tray 23 of the trays 23, 24 provided in a single sheet is located at the most rearward (opposite arrow Y direction) position with respect to the carrier 4.

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

As is clear from FIGS. 17 (a) to 17 (f), when the disk play start command is issued, first, the turntable is turned on.
It is confirmed whether the playing means including 37 is in the normal position (step: S3), and then the motor 11 rotates forward (step:
11) The carrier 4 is housed in the player housing 2 together with the trays 23 and 24 which maintain the above-mentioned positions. Carrier 4
The motor 32 rotates in the reverse direction (step S9) immediately before the storage position reaches the storage position, and the upper tray 23 is moved forward (in the direction of the arrow Y) by a predetermined distance from the above position. Positioned at a certain playing position. Also,
The lower tray 24 is located at the central portion of the carrier 4, that is, the storage position. After this, the motor 19 rotates forward (step: S
12) Then, the trays 23 and 24 are lowered together with the movable chassis 13 carrying them from the upper position to the lower position, and the disc 22 on the upper tray 23 is placed on the turntable 37. Then, the motor 55 rotates in the normal direction (step: S16) to perform the disk clamp, and subsequently the motor 47 rotates (step: S19) to start the movement of the carriage 43 carrying the optical pickup means. 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: S27),
The motor 19 reversely rotates (step: S29) and the movable chassis 13 is moved to the middle position. As a result, the disc 22 moves from the turntable 37 to the upper tray 23. Disc 22
The upper tray 23, on which is again placed, is returned to immediately above the carrier 4 by the reverse rotation of the motor 32 (step: S32). Then, the playing of the upper surface of the disc 22 on the upper tray 23 is started as follows.

As shown in FIG. 14, the motor 64 is normally rotated (step: S35), and the playing means including the turntable 37 is rotationally moved to the reverse position. At the same time, the motor 19 is normally rotated (step: S38) to move the movable chassis. 13 is lowered to the lower position. After this,
The motor 32 rotates in the normal direction (step: S41), the upper tray 23 is moved to the playing position, and the disc 22 on the upper tray is positioned immediately below the turntable 37. Next, the motor 19 rotates in the reverse direction (step: S44), the movable chassis 13 is raised to the intermediate position between the lower position and the middle position, and following this operation, the motor 55 rotates in the normal direction (step: S47) and the disc clamp operates. Done. That is, when the playing means is in the reverse position for playing the top surface of the disk 22, the tray 23 is once brought close to the turntable 37 together with the movable chassis 13 carrying the tray, and then the disk clamp is performed. Thus, when the disc clamp is completed, the top surface performance of the disc 22 is started.

When the upper surface performance of the disc 22 is completed, the motor 55 reversely rotates (step: S58) and the disc clamp is released.
By this disc clamp release operation, the disc 22 pressed against the turntable 37 is transferred onto the upper tray 23. After that, the motor 32 is rotated in the reverse direction, and the upper tray 23 is returned to directly above the carrier 4.

Then, the lower surface performance of the disc placed on the lower tray 24 is started.

First, as shown in FIG. 15, it is confirmed whether or not the playing means is returned to the normal position (step: S64). Next, the motor 19 reverses (step: S70) and the movable chassis
13 rises to the upper position. In this state, the motor 34 rotates in the normal direction (step: S73) and the lower tray 24 is moved to the playing position immediately above the turntable 37. After that, the motor 19 rotates normally (step: S76), the movable chassis 13 is lowered to the middle position, and the disc 22 on the lower tray 24 turns into a turntable.
Mounted on 37. Then, the motor 55 rotates in the normal direction (step: S83) to clamp the disk, and the motor 47 rotates in the normal direction (step: S87) to start moving the carriage 43, so that the lower surface of the disk 22 is played. When the lower surface playing of the second disc 22 is completed, the disc clamp is released, the motor 19 is rotated in the reverse direction (step: S97), and the movable chassis 13 is raised to the upper position (step: S98). This rise of the movable chassis 13 causes the disc 22 on the turntable 37 to move onto the lower tray 24. Then, the motor 34 reversely rotates (step: S100), and the lower tray 24 carrying the disk 22 again is returned to immediately above the carrier 4.

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

As shown in FIG. 16, the motor 64 rotates in the normal direction (step: S103), and the playing means including the turntable 37 is rotationally moved to the reverse position. At the same time, the motor 19 rotates in the normal direction (step: S106). The movable chassis 13 descends to the middle position.
Next, the motor 34 rotates in the normal direction (step: S109), and the lower tray 24 moves directly above the turntable 37. After that, the motor 19 reversely rotates (step: S112), and the movable chassis 13 rises to an intermediate position between the upper position and the middle position. Then, the motor 55 rotates in the normal direction (step: S115), the disc is clamped, and the spindle motor rotates (step: S115).
Then, the carriage 43 is moved by the rotation of the motor 47 (step: S119), and the upper surface of the disk 22 is played.

When the upper surface performance of the second disc is completed, the motor 55 reversely rotates (step: S126) and the disc clamp is released. By this disc clamp releasing operation, the disc pressed against the turntable 37 is returned to the lower tray 24. After that, the motor 34 rotates in the reverse direction, and the lower tray 24 is moved to directly above the carrier 4.

When the double-sided performance of the two discs is completed, the motor 19 reverses (step: S132), and the movable chassis 13 carrying the trays 23 and 24 is moved to the upper position. After this, the motor
11 reverses (step: S135), the carrier 4 moves the movable chassis 13, the trays 23 and 24, and the player housing 2
It is made to project outside. Along with this, the motor 32 rotates in the normal direction (step: S138), and only the upper tray 23 moves rearward, resulting in the state shown in FIG.

In this embodiment, a plurality of trays 23, 2 are provided.
Although only one carrier 4 for supporting these is provided for 4, the carrier may be individually provided for each of the trays 23 and 24. However, by sharing the carrier for multiple trays,
The number of parts is reduced, the structure is simplified, and it is easy to reduce the size and cost of the player as a whole.

As described above in detail, in the front loading disc player according to the present invention, the tray, which is provided on the carrier that is movable in the first predetermined direction with respect to the player housing and carries the disc, is mounted on the carrier. It is movable in two directions, the first predetermined direction and a second predetermined direction which is perpendicular to the first predetermined direction.

With such a configuration, the moving position of the tray can be easily set to the playing position as the other position at the innermost portion of the player housing, in addition to the two positions of the projecting position and the storing position with respect to the player housing. Therefore, the disc is ejected by providing two pickup means so as to sandwich the disc carried on the tray which has reached the playing position, or by providing one pickup means which is movable so as to correspond to both sides of the disc. You can play both sides of the disc without doing this.

If a plurality of trays are arranged side by side in the second predetermined direction on the carrier and the trays are selectively moved between the storage position and the playing position with respect to the carrier, the eject operation is performed. It is possible to continuously play a plurality of discs without performing it. Further, in addition to this structure, two pickup means are provided so as to sandwich the disc which has reached the playing position as described above, so that double-sided performance of a plurality of discs can be performed.

Further, in the front loading disc player according to the present invention, since the disc is moved among the three positions of the projecting position, the storing position and the playing position by the relative movement of the two members of the carrier and the tray, The individual operation strokes of the carrier and the tray can be reduced, and as a result, the overall size of the player can be minimized.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire front loading disc player as an embodiment of the present invention, FIG. 2 is a perspective view of main members of the internal structure of the front loading disc player, and FIG. 3 is a schematic view 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 views respectively taken along the line VV, VI-VI and VII-VII of FIG. Fig. 8 (a) to Fig. 11 are partial detailed views of the internal structure, and Fig. 12 is XII-XII relating to Fig. 4.
An arrow view, FIG. 13 is a diagram showing a configuration of a drive control system in the disc player, FIGS. 14 to 16 are diagrams for explaining the operation of the disc player, and FIGS. 17 (a) to 17 (f). ) Is a flow chart for explaining the operation of the disc player, and FIG. 18 is a diagram showing a main part of a conventional front loading disc player. Explanation of main part code 2 …… Player housing 4 …… Carrier 11,19,32,34,47,55,64 …… Motor 13 …… Movable chassis 14,15 …… Movement member 20 …… Rotating lever 22 …… Disk 23,24 …… Tray 37 …… Turntable 38 …… Supporting member 40,41 …… Bearing 43 …… Carriage 51 …… Arm member 52 …… Pressing member 71,72,73,74,75,76 , 77,79,81,82,83,84,85,87,91,92…
… Detection switch 88 …… Photo sensor

Front page continuation (72) Inventor Masakazu Yamashita 42610 Hanazono, Tokorozawa-shi, Saitama Pioneer Co., Ltd. Tokorozawa factory (72) Inventor Kenji Tanaka 4-2610 Hanazono, Tokorozawa, Saitama Pioneer Tokorozawa factory (72) Inventor Ryo Matsuura 4-2610 Hanazono, Tokorozawa, Saitama Pioneer Co., Ltd. Tokorozawa Plant (56) References JP 62-109258 (JP, A) JP 63-206951 (JP, A) )

Claims (2)

[Claims] 1. A front loading disk player having a disk carrying mechanism for carrying a disk to be played and carrying the disk to a playing position in a player housing, wherein the disk carrying mechanism is a first predetermined position with respect to the player housing. A carrier movably provided in the first direction and the second predetermined direction and the second carrier on the carrier.
Front loading, comprising a tray that is movably provided in a predetermined direction and that can carry a disc, a carrier driving unit that moves the carrier, and a tray driving unit that moves the tray with respect to the carrier. Disc player. 2. The front loading disc player according to claim 1, wherein the carrier is a single member.