JP2672604B2 - Multiple disc storage player - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disc player, and more particularly, to a multi-disc storage player capable of storing a plurality of discs and capable of sequentially selecting any one of the stored discs and playing continuously. .

BACKGROUND ART A multi-disk storage player is disclosed in, for example,
A publicly known Japanese Patent Publication No. Gazette, a playing means including a turntable, a pickup, etc., and a magazine as a disc storing portion capable of accommodating a plurality of discs in an array and being inserted and mounted in a mounting portion in a player housing, in the magazine. Discs are sequentially selected and transported to the disc-carrying surface of the turntable, and, conversely, returned to the magazine from the disc-carrying surface.

In such a multi-disk storage player, when a selected disk is transported from the magazine to the turntable, the disk is moved in two directions: a direction parallel to the disk holding surface of the turntable and a direction perpendicular to the direction. This is performed by the above-described disc take-out and transport mechanism. Specifically, the disks are arranged in the magazine in a direction perpendicular to the disk-carrying surface of the turntable, and one of the playing means including the turntable and the magazine is carried on a predetermined movable member. The movable member is reciprocated in the disc arrangement direction, and this is replaced by the movement of the disc in the direction perpendicular to the disc carrying surface of the turntable.
The movement of the disk in a direction parallel to the disk holding surface of the turntable is completed by simply protruding the disk from the magazine.

A configuration shown in FIGS. 42 to 44 is conceivable as a structure for reciprocating the above-mentioned playing means together with the above-mentioned movable member in the disk array direction.

A member denoted by reference numeral 151 in FIGS. 42 to 44 is a carrying member which constitutes the above-mentioned movable member, and a playing means including a turntable 152, a pickup 153 and the like is mounted on the carrying member. . Note that FIG. 43 and FIG.
FIG. 44 is a view taken in the direction of arrows IVXIII-IVXIII and FIG. 42, respectively.
It is a IVXIV-IVXIV arrow line view. The carrying member 151 is reciprocally attached to the chassis 154 in the vertical direction (the arrow Z direction and the opposite direction). The disks 156 in the magazine 155 are also arranged in the vertical direction, and the arrangement direction and the moving direction of the carrying member 151 coincide with each other.

A pair of moving members 158 and 159 extending in the front-back direction (arrow Y direction and the opposite direction) are provided on both left and right sides of the chassis 154 (sides in the arrow X direction and the opposite direction) so as to be movable in the front-rear direction. Is provided. Although not shown, a drive mechanism including a motor for moving each of the moving members 158, 159 is provided. The carrying member 151 has three pins 151a protruding, one on the left side and two on the right side. Each of these pins 151a is connected to each of the moving members 158, 15
It is fitted in the linear cam portions 158a, 159a formed in 9. Reciprocating movements of the moving members 158 and 159 (direction of arrow Y and opposite direction) cause the carrying member 151 to move up and down (direction of arrow Z and opposite direction) so as to correspond to respective disc storage positions in the magazine 155. Part 158a, 1
59a is formed to be inclined with respect to the moving direction of the moving members 158 and 159.

In this configuration, the carrying members 151 move up and down as the moving members 158 and 159 reciprocate under the application of a driving force, whereby the playing means such as the turntable 152 and the magazine 155 are arranged in the disk arrangement direction (arrow Z direction). And the opposite direction).

On the other hand, the motor as a drive source for moving the moving members 158 and 159 rotates somewhat due to inertia even after the current is cut off in response to the stop signal. Therefore, in the above-described structure, the moving members 158 and 159 are slightly moved by the rotation due to the inertia of the motor, and the linear cam portions 158a and 159a formed on the moving members vertically move the carrying member 151. It is not always easy from a cost point of view to accurately stop the player at a predetermined stop position, that is, to accurately perform relative positioning between the playing means and the magazine 155 in the disk array direction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points,
It is an object of the present invention to provide a multiple disc storage player that achieves high accuracy of relative positioning in the disc array direction between the reproducing means including a turntable and a pickup and the disc storage portion without increasing cost. is there.

In the multiple disc storage player according to the present invention, the positioning means for relatively positioning the reproducing means and the disc storage portion in the disc array direction carry the movable member carrying one of the disc storage portion and the reproducing means, and the movable member. A drive mechanism for moving the member, and a control means for controlling the drive mechanism to move the movable member to a designated position corresponding to the disc designated by the reproduction command. A rotating toothless gear,
A drive transmission member that meshes with the toothless gear and a moving mechanism that moves the movable member according to the rotation of the driven gear, and the control means includes the toothless gear of the toothless gear as the drive transmission member. When the number of generations of the detection signal reaches the number corresponding to the designated position by including the detection means for emitting a detection signal each time the mesh position is reached and starting the rotation drive of the drive source in response to the reproduction command. It is characterized in that the rotational drive of the drive source is stopped so that the teeth of the drive transmission member are stopped so as to be located within the toothless range of the toothless gear.

Embodiments Hereinafter, a plurality of disc storage players as embodiments of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 indicates the entirety of the multi-disk storage player.

As shown in FIG. 1, the front panel 3 of the player housing 2 is provided with a rectangular opening 3a for mounting a magazine 5 as a disc storage portion in the player housing. The opening 3a extends in the left-right direction. However, the left-right direction referred to here is a direction toward the front indicated by arrow Y, and the direction of arrow X is leftward. Arrow Z indicates the upper direction. On the front panel 3, an operation button group 6 and a display section 7 for operating the multiple disc storage player are also provided.

As shown in FIGS. 2 (a) to 2 (c), the magazine 5 has a magazine body 8 as a flat rectangular parallelepiped housing as a whole, and three magazines each carrying a disk 10 on a main surface. It has a total of six rectangular plate-shaped trays A11 and B12. The trays A11 and B12, and thus each disk 10, are arranged and stored in a direction perpendicular to the disk carrying surface of the turntable, which will be described later, in this case, at a predetermined pitch in a vertical direction (arrow Z direction and the opposite direction). Have been. Tray A11 and tray B12 are
At the right rear end of the magazine body 8, the magazine body 8 is rotatably provided around a rotation support shaft 8 a extending in the arrangement direction (vertical direction) of the trays. It can be freely stored and protruded along.

 The configuration of the magazine 5 will be described in more detail.

The magazine main body 8 is provided with seven partition walls 8b arranged in the vertical direction (the direction of the arrow Z and the opposite direction), and the tray A11 and the tray B12 are arranged between the respective partition walls. As is clear from FIG. 3 (a), each partition 8b
A small circular opening 8c is formed concentrically near the rotation support shaft 8a. FIGS. 4 (a) and (b) and FIGS. 5 (a) and (b) show details of the tray A11 and the tray B12, and as shown in both figures, each partition wall 8b Openings 11a and 12a are also formed in each tray so as to be able to face the opening 8c formed in the tray. Here, the partition wall 8b
The opening 8c formed in the tray A11 is referred to as a first opening, whereas the openings 11a and 12a provided in the tray A11 and the tray B12 are referred to as a second opening. These openings 8c, 11a and 1
Five spherical movable pieces 13a that can move along the direction in which the partition walls 8b are arranged (the direction of the arrow Z and the direction opposite thereto) are fitted in 2a. The diameter of each spherical movable piece 13a is equal to the arrangement pitch of the trays 11 and 12 arranged alternately. Also,
The spherical movable pieces are urged in a direction approaching each other by a pair of leaf springs 13b arranged at the upper and lower ends of the magazine body 8.

As shown in FIG. 2 (b), a pressing lever 14 is provided at the left front end of the magazine body 8 so as to extend substantially in the front-rear direction (the direction of the arrow Y and the opposite direction). In this case, the front end portion is swingably attached to the magazine body 8 via a pin 14a. However, the pin 14a extends in the vertical direction (the direction of the arrow Z and the opposite direction). The other end, ie, the rear end, of the pressing lever 14 can smoothly engage with the free end of each tray 11 and 12. A spring member 14b is engaged with the pressing lever 14. The spring member 14b urges the pressing lever 14 in a counterclockwise direction in FIG. 2 (b), thereby applying a tray pressing force to the pressing lever. When the magazine 5 is detached from the magazine mounting portion in the player housing 2, the pressing lever 14 has an edge 3 b of the opening 3 a of the player housing.
A protruding portion 14c that can come into contact with is formed. This protrusion 14c
Is in contact with the edge 3b of the opening 3a,
The pressing lever 14 has a function of swinging the main body of the pressing lever 14 so as to bias the main body 11 and 12 toward the storage position in the magazine main body 8.

The pressing lever 14 and the spring member 14b constitute pressing means for pressing the trays 11 and 12 toward the storage position in the magazine main body 8 and the rotation support shaft 8a.
Further, the pressing means, the opening 8c (first opening) formed in each partition wall of the magazine body 8, and the openings 11a and 12a (second opening) formed in the trays 11 and 12, respectively. , Each spherical movable piece 13a, and leaf spring 13b, each tray 11 and
A holding mechanism for holding the cartridge 12 at the storage position in the magazine body 8 is configured.

As is clear from FIGS. 4 (a) and (b) and FIGS. 5 (a) and (b), the tray A11 and the tray B12 have substantially the same shape, and the listener can remove the trays from the magazine body 8. The only difference is the shapes and positions of the claws 11b and 12b on which the fingertips are put when the finger is pulled out. At the free ends of the trays 11 and 12, there are formed notches 11c and 12c with which the above-described pressing lever 14 is engaged, and a pair of jig insertion holes 11d, 11e, 12d and 12e.

Flexible members 11f and 12f made of synthetic leather or the like are provided at predetermined positions on the main surface of adjacent trays that can face the disk carrying surfaces of the trays 11 and 12, so as to protrude from the main surfaces. Each of the trays 11 and 12 is provided with an arc-shaped concave portion 11h, 11i, 12h, 12i along the movement locus of the flexible member 11f, 12f provided on the adjacent tray. This recess 11h, 1
By providing 1i, 12h, and 12i, the total dimensions of the six trays 11 and 12, which are stacked together, in the stacking direction are kept small. That is, the thickness of the entire magazine 5 is reduced.

As shown in FIG. 2 (c), an engagement claw 5a is provided at a substantially central portion on the right side of the magazine 5, and a pin 5b is provided.
Thereby, it is attached to the magazine body 8 at one end so as to be swingable within a predetermined range. Another engaging claw 5c is provided at the front end of the right side of the magazine 5 at one end via a pin 5d so as to be swingable within a predetermined range. This engagement claw 5c
Its free end is urged outward by a coil spring 5e. Each of these engaging claws 5a and 5c has an edge 3b of an opening 3a (see FIGS. 1 and 2 (b)) at its free end.
Can be engaged.

Each of the engagement claws 5a and 5c and the coil spring 5e described above.
Thus, the mounting prevention means for preventing the mounting when the mounting posture of the magazine 5 with respect to the mounting portion in the player housing 2 is incorrect is configured. That is, when the magazine 5 is to be mounted on the mounting portion with the magazine 5 turned upside down, the engaging claw 5a swings by its own weight and protrudes out of the magazine 5, and the free end of the engaging claw is opened. Part 3a (described above)
And the magazine 5 is prevented from being mounted. When the magazine 5 is to be mounted on the mounting portion with the front and rear reversed, the engaging claw 5c projected outward by the coil spring 5e engages with the edge 3b of the opening 3a. Thus, the mounting of the magazine 5 is prevented.

In addition, since the attachment preventing means is constituted by extremely simple members such as the engagement claws 5a and 5c and the coil spring 5e, the structure is simplified and the cost can be easily reduced.

As shown in FIG. 2 (b) and FIG. 3 (b), the protrusion 14 of the pressing lever 14 provided to be able to swing on the magazine 5 is provided.
A circular opening 14e is formed in c. On the other hand, as shown in FIG. 3 (b), the magazine body 8 as a housing of the magazine 5 is provided with an overhang portion 8d extending along the lower surface of the pressing lever 14, and a columnar shape is provided on the overhang portion. A protrusion 8e is formed. A circular recess 8f is formed at the upper end of the projection 8d.
A spherical movable piece 8g is inserted into the concave portion so as to be movable in the vertical direction (the direction of arrow Z and the opposite direction). An opening 14e formed in the projection 14c of the pressing lever 14 can face the concave portion 8f when the pressing lever is at a position shown by a solid line in FIG.
8g can partially fit into this opening 14e.

By the pressing lever 14 and the movable piece 8g described above, each tray 11 and
A protrusion restricting means for restricting protrusion of the twelve magazine bodies 8 is configured. That is, when the magazine 5 is upside down, the spherical movable piece 8g moves by its own weight and a part of the movable piece fits into the opening 14e of the pressing lever.
As a result, the swing of the pressing lever 14 is restricted, and thus the projection of each tray 11, 12 to the outside of the magazine body 8 is restricted.

In addition, since the protrusion restricting means is configured by a member having a simple shape such as the pressing lever 14 and the movable piece 8g, the configuration is simplified, and the cost can be easily reduced. Regarding the spherical movable piece 8g, a commercially available spherical piece can be used without special production.

As shown in FIG. 1, a chassis 16 as a support member is mounted on a bottom plate 15 fixed in the housing 2. The chassis 16 has a flat portion 16a 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 a pair of upright portions 16b and 16c extending in the direction (the arrow Z direction and the opposite direction, ie, the arrangement direction of the trays).

As shown in FIGS. 6 to 9, a moving member 18 as a carrying member is disposed between the rear end portions of the pair of upright portions 16b and 16c of the chassis 16, and It is attached to each upright portion so as to be movable in the vertical direction (the arrow Z direction and the opposite direction), that is, the arrangement direction of the trays 11 and 12.

As shown in FIG. 9, a support plate 22 as a holding member is attached to the upper surface of the moving member 18, and as is apparent from FIGS. 8 and 10, a turntable is provided on the support plate. 23 are installed. As shown in FIG. 9, a carriage 24 carrying an optical pickup means is disposed on the carrying plate 22, and includes a disk carrying surface 23a (shown in FIG. 10) of a turntable 23. In this case, it is attached to the support plate 22 so as to be movable in substantially the left-right direction (the direction of the arrow X and the opposite direction). The turntable 23 is shown in FIGS.
It is directly driven to rotate by a spindle motor 25 shown in the figure. A carriage driving unit for driving the carriage 24 is provided on the support plate 22.

Turntable 23 and spindle motor 25 described above
The carriage 24 including the optical pickup means and the carriage driving means constitute a playing means for playing a disk, that is, a playing means for playing a disk. That is, the playing means is carried on a moving member 18 as a carrying member, and moves in the vertical direction (along arrow Z and the opposite direction) together with the moving member.

As shown in FIG. 10, the turntable 23 is provided with a magnet 23b for applying a clamping force to a disc-shaped pressing member of a clamp mechanism described later. The holding plate 22 as a holding member for holding the spindle motor 25 and the turntable 23 is made of a magnetic material, and is disposed on the side of the turntable 23 opposite to the disk holding surface, as is apparent from FIG. Therefore, the turntable 23 is attracted toward the support plate 22 by the magnetic force of the magnet 23b,
An output shaft 25a of the spindle motor 25 and a bearing (not shown) supporting the output shaft are brought into close contact with each other.

As shown in FIGS. 11 and 12, a moving lever 33 made of a steel plate is provided on a lower surface of the chassis 16 in a magazine mounting direction, that is, in a front-rear direction (arrow Y direction and the opposite direction).
It is attached movably along. FIG. 13 (a)
3 (b) shows the details of the moving lever 33.

As is apparent from FIGS. 13 (a) and 13 (b), a projecting portion 33a which protrudes downward from the rear end of the moving lever 33 and which can be engaged with the rear end of the magazine 5 is provided. Have been. That is, when the rear end of the magazine 5 is engaged with the overhang 33a, the moving lever 33 moves rearward. Further, a coil spring (not shown) for applying a bias force toward the front (in the direction of arrow Y) to the moving lever 33 is connected to the moving lever 33.

As shown in FIGS. 6 and 11, on the left side of the moving lever 33, projecting portions 33b, 33 of the moving lever that move back and forth.
A pair of detection switches 34 and 35 are arranged so that c (see also FIG. 13 (a)) can be engaged with the operator to operate the respective operators.

The above-described moving lever 33 and the detection switches 34 and 35 constitute a magazine mounting detection means for detecting that the magazine 5 is mounted in the magazine mounting portion in the player housing 2.

Next, a description will be given of a moving member moving means for moving the moving member 18 in the vertical direction (the direction of the arrow Z and the opposite direction).

As shown in FIGS. 6 to 8, a pair of longitudinal moving plates 37 and 38 extending in the front-rear direction are provided on the outer surfaces of the left and right vertical surfaces 16b and 16c of the chassis 16.
14 and 15 show the details of the moving plates 37 and 38. 7 and 8, each moving plate 37, 38 is formed with guide grooves 37a, 37b and 38a, 38b, 38c extending in the extending direction of each moving plate. Each of the plates 37 and 38 has the guide groove 1
It is attached to a chassis 16 as a support member by movably fitting to a pin 16d projecting from the outer surfaces of 6b and 16c. That is, the movable plates 37 and 38 are reciprocally movable in the front-rear direction.

As shown in FIGS. 6 to 9, the moving member 18 is provided with a total of four pins 18a, two on each of the left and right sides. As is clear from FIGS. 7 and 8, these pins are movably fitted into four guide grooves 16e formed in the left and right compatible surfaces 16b, 16c of the chassis 16 serving as a support member and extending vertically. As a result, the moving member 18 is guided in the vertical direction.

Pins 18a projecting from the left and right sides of the moving member 18 project to the outside of the chassis through the guide grooves 16e of the chassis 16, and linear cam holes 3 formed in the moving plates 37 and 38.
7d and 38d are movably engaged with the pin 18a. The cam hole 37d formed in the moving plate 37 is formed so as to be inclined forward (in the direction of the arrow Y) and downward (in the direction opposite to the direction of the arrow Z). Further, the cam hole 38d formed in the moving plate 38 is formed so as to incline upward toward the front. That is, the cam holes 37d and 38d are formed so that the moving member 18 moves up and down when the moving plates 37 and 38 move relatively. The moving member 18 and the moving plates 37, 38 are collectively referred to as a movable member.
As shown in FIGS. 6 and 8, a coil spring 38h that constantly urges the moving plate rearward (in the direction opposite to arrow Y) is connected to the rear end of the right moving plate 38. . Therefore, the cam hole 38 formed in the moving plate 38
The gap between d and the pin 18a slidingly contacting the cam hole is always zero, and the up and down movement of the moving member 18 is performed with high accuracy.

As shown in FIGS. 6, 7, and 14, a rack portion 37h is formed at the front end of the left moving plate 37 along the direction in which the moving plate extends. As is clear from FIGS. 6 and 7, the rack portion 37h is meshed with the small gear portion 40a of the double gear 40 formed by integrally forming two large and small gears provided on the chassis 16. There is. No. 16
As shown in FIGS. 7A and 7B, the large gear portion 40b of the double gear 40 meshes with the small gear portion 41a of the other double gear 41 arranged in front of the large gear portion 40b. A toothless gear 42 having a toothless portion 42a is provided in front of the double gear 41, and a driven gear, that is, a large gear portion 41b of the double gear that is a drive transmission member is a tooth of the toothless gear 42. It meshes with the portion 42b. A gear 42c is provided integrally with the toothless gear 42, and meshes with a gear 43a arranged in front of the gear 42c. A large pulley 43b is provided integrally with the gear 43a, and the large pulley 43b is connected to the transmission belt 4a.
It is multiplied by 4. The transmission belt 44 is wound around a small pulley 45a fitted to the output shaft of the motor 45.

The above-mentioned double gears 40, 41, the toothless gear 42, the gear 42c and
43c is generically called a gear transmission mechanism. The small gear portion 40a of the double gear 40 meshing with the rack portion 37h is the final stage gear of the gear transmission mechanism. The motor 45 is a drive source that applies a driving force to the gear transmission mechanism, and constitutes a drive mechanism together with the rack portion 37h formed on the moving plate 37 and the gear transmission mechanism. The movable member (described above) including the moving member 18 and the moving plates 37, 38 is driven by the driving mechanism.
Further, the rack portion 37h functions as a moving mechanism that moves the movable member in accordance with the rotation of the double gear 41 as a driven gear, together with the double gear 40 that meshes with the rack portion. It should be noted that the moving mechanism is configured so that the rack portion 37h and the gear 4 are
Instead of 0, a worm and a worm wheel may be used.

As described above, the gear transmission mechanism includes the tooth-chipped gear 42 having the tooth-chipped gear 42a, and is formed integrally with the tooth-chipped gear.
A cam portion 42e is projectingly provided on the side surface of 42c. A detection switch 46 as a rotation detection means is arranged below the gear 42c, and the cam portion 42e can engage with the operator 46a of the detection switch. The cam portion 42e is a double gear 41 as a driven gear that is a gear at the next stage that meshes with the toothless gear 42.
Each time the tooth-chipped portion 42a of the tooth-chipped gear reaches the meshing position with the large gear 41b, it engages with the operator 46a of the detection switch 46, whereby the detection switch 46 issues a detection signal each time.

As is particularly clear from FIG. 16 (a), the toothless gear 42 and the double gear 41, which is a driven gear meshing with the toothless gear 42, are integrally formed with cam portions 42g and 41d that engage with each other. The cam portions 42g and 41d are not shown in FIG. 16 (b). FIG. 17 is a view taken along the arrow XVII-XVII in FIG. 16 (a), showing the details of both cam portions. As shown in FIG. 17, the cam portion 41d provided on the double gear 41 is formed in a disk shape, and has a notch portion 41e having a predetermined length in the circumferential direction on the outer peripheral portion. The cam portion 42g provided on the tooth-chipped gear 42 is also formed in a disk shape, and has an overhanging portion 42h having a predetermined length in the circumferential direction on the outer peripheral portion thereof. In addition, both cam portions 42g and 41d, the outer peripheral surface 42i,
41f are formed so as to be extremely close to each other or in sliding contact with each other.

As shown in the figure, the overhanging portion 42h formed on the cam portion 42g can be fitted into the notch portion 41e of the cam portion 41d, and by this fitting, the double gear 41 including the cam portion 41d can rotate forward and backward. Disappear. This overhanging portion 42h is the toothless portion 4 of the toothless gear 42.
It is formed corresponding to 2a and has the same length as the length of the toothless portion. Therefore, when the toothless portion 42a of the toothless gear 42 meshes with the double gear 41 that is a driven gear, the rotation of the double gear 41 is restricted.

In the above configuration, by appropriately setting the toothless range of the toothless gear 42, the tooth portion 42b of the toothless gear 42 does not mesh with the double gear 41 as the driven gear, that is, the double gear 41. The tooth-chipped gear 42 can be stopped so that the tooth of the tooth is located within this tooth-chipped range. Therefore, even if the tooth-chipped gear 42 slightly rotates due to the inertia of the motor 45, which is the drive source, after the motor 45, which is the drive source, performs the stop operation, the tooth portion 42b of the tooth-chipped gear 42 is It has not meshed with the double gear 41 yet, and the power due to the inertia of the motor is not transmitted to each part after the double gear 41.

Further, at this time, since the rotation of the double gear 41 is restricted by the action of the cam portions 42g and 41d described above, the operation of each member extending from the double gear to the moving member 18 by its own inertia is restricted. Therefore, the playing means including the turntable 23 is positioned with respect to the magazine 5 with high accuracy in the disk array direction.

As shown in FIG. 6, the left and right moving plates 37 and
A rotation lever 47 is arranged between the 38 and is attached to the chassis 16 so as to rotate about a virtual center 37a via a pin 16g protrudingly provided on the chassis 16. Both ends of the turning lever 47 are left and right moving plates 37, 38.
Is pivoted to.

As shown in FIG. 6, a detection switch 49 is provided above the left elevation 16b of the chassis 16. The detection switch 49 is for detecting that the movable plate 37 reciprocating in the front-rear direction is at the most backward position (forward movement limit position), and a part of the movable plate 37 is It operates by engaging.

The detection signal emitted from the detection switch 46 described above is sent to a counter (not shown) that counts the detection signal. Further, a control unit (not shown) which automatically controls the plural disc storage player and includes the counter is arranged at a predetermined position in the player housing 2, and the control unit moves the moving plate according to the count value of the counter. 37
Know the stop position of.

When a movement command is issued while the detection switch 46 is emitting a detection signal, the control unit moves the moving plate 37 by a distance corresponding to the difference between the current address and the desired address, and the detection switch 46 issues a detection signal. When there is a movement command when not moving, the movement plate 37 is moved (moved backward) until the detection signal is obtained from the detection switch 49, and then moved to the position of the desired address.

As shown in FIG. 9, the trays 11 and 12 in the magazine 5 are provided at the right front end of the moving member 18 (see FIG. 2B).
Tray engaging members 53 are provided for engaging the respective trays with each other and projecting the respective trays to the outside of the magazine main body 8. The tray engaging member 53 is formed in a substantially L-shape as a whole, and a pin 53a projecting from the tray engaging member is slidably engaged with an arc-shaped guide groove 18d formed in the moving member 18. Guided by that. That is, the tray engaging member 53 rotates about the center of curvature of the arc-shaped guide groove 18d as a rotation axis, and pushes the trays 11 and 12 at the rotating ends 53b and 53c to protrude and house the magazine main body 8. . In addition, as is apparent from FIG.
The position of the virtual rotation shaft 53 (the center of curvature of the arc-shaped guide groove 18d) and the position of the rotation support shaft 8a of each tray 11, 12 are matched. Each tray 11 and 12 is located near the rotation support shaft 8a.
11k and 12k (see FIGS. 4 (a) and 5 (a)) are pushed out of the magazine body 8 by being pushed by the tray engaging member 53. As shown in FIG. 9, the start end 18e and the end 18f of the arc-shaped guide groove 18d are provided with a driving force: And extend at substantially right angles.

Next, a description will be given of a tray engaging member driving unit that rotationally drives the tray engaging member 53 so that the trays 11 and 12 protrude from the magazine body 8.

As shown in FIGS. 6 and 18, a moving body 56 extending in the front-rear direction is arranged on the lower surface of the right side portion of the chassis 16 and is attached to the chassis 16 movably in the extending direction. ing. Figure 19 (a) to (d)
The details of the moving body 56 are shown in FIG. A rack 56a is formed at the right front end of the moving body 56 along the direction in which the moving body extends. The small gear 57a of the double gear 57 (see FIGS. 6 and 8) provided on the chassis 16 meshes with the rack 56a. The moving body 56 is a double gear 57
Is driven by the motor 62 via a gear reduction mechanism 58 including The moving body is controlled by the gear reduction mechanism 58 and the motor 62.
Driving force applying means for applying a driving force to 56 is configured.

As shown in FIGS. 12 and 20, in the vicinity of the deepest part of the magazine mounting portion in the player housing 2, the magazine 5 mounted on the magazine mounting portion is projected to the outside of the magazine mounting portion. A swing lever 63 is arranged to extend in the substantially left-right direction, and is swingably attached to a sub-chassis 64 provided at a lower portion of the chassis 16 at a substantially central portion thereof via a pin 63a. . However, pin 63a
Extend in the vertical direction (the arrow Z direction and the opposite direction). As is apparent from the figure, a projecting portion 63b extending upward projects from the right end of the swing lever 63, and the swing lever 63 contacts the rear end of the magazine 5 at the projecting portion. . A gear 63c having a pin 63a as a center of curvature is formed at the left end of the swing lever 63, and a braking gear 65a (12th illustration) of the damper 65 meshes with the gear 63c. I have. The damper 65 applies a braking force by viscous resistance of a viscous agent such as grease held therein. In addition,
As shown in FIG. 20, the swing lever 63 is given a magazine projection output by the coil spring 63d.

The rocking lever 63, the damper 65, and the coil spring 63d constitute a projecting means for projecting the magazine 5 from the magazine mounting portion in the player housing 2 to the outside.

As shown in FIG. 8, the right elevation of the chassis 16
The magazine 16c is locked at a mounting position with respect to the player housing 2 by engaging one end of the rotation thereof with a locking recess 5g (see FIGS. 2 (b) and 2 (c)) of the magazine 5. A lock member 67 is provided rotatably. Further, the locked state of the magazine 5 by the lock member is released by moving the moving body 56 forward.

As shown in FIGS. 6 and 18, at the right end portion of the chassis 16, a first lever member 71 and a second lever member 72 both extending in the front-back direction (the arrow Y direction and the opposite direction).
Are mounted on the chassis 16 so as to be able to reciprocate in the respective extending directions. The details of the first lever member 71 and the second lever member 72 are shown in FIGS. 21 (a) and (b) and FIGS. 22 (a) and (b). The first lever member 71 is for driving a support which is a constituent member of a clamp mechanism to be described later.
Reference numeral 72 is for rotationally driving the tray engaging member 53 (see FIG. 9) through the intermediate lever 73 (shown in FIGS. 6 and 18). The intermediate lever 73 is a pin that extends in the vertical direction.
It is rotatably provided on the chassis 18 via the 73a, and is projected to the second lever member 72 in a cam groove 73b (shown in FIGS. 6 and 18) formed at one end of its rotation. Rotation occurs when the pin 72a is engaged. A rod 73c extending downward is provided at the other end of the rotation of the intermediate lever 73. The rod 73c fits into a hole 53d formed in the tray engaging member 53 (shown in FIG. 9). The joining member 53 is rotated. As shown in FIG. 6, the intermediate lever 73 is provided with a leaf spring 73e for bringing the pin 72a into close contact with the cam groove 73b.

Further, the cam groove 73b is formed so that the tray engaging member 53 pushes the tray A11 or the tray B12 to be housed in the magazine main body 8, and then separates the tray engaging member from each tray. .

Both the first lever member 71 and the second lever portion member 73 described above are moved by the moving body 56 described above.

As shown in FIGS. 6, 18, 19, and (a) and (c), a first recess 56c is formed at a predetermined position of the moving body 56. On the other hand, as shown in FIGS. 6 and 18, the first lever member 71 is provided with a first opening 71c that can face the first recess 56c, and the first opening 71c is formed in the first opening. Is provided with a movable piece 74 capable of engaging with the first recess 56c. Due to the first recess 56c, the first opening 71c, the movable piece 74, and the like, the first lever member 71 is moved according to the movement of the moving body 56.
A lock / release means for properly locking the mobile body with respect to the mobile body and releasing the locked state is configured. That is, the first lever member 71 moves or stops together with the moving body in accordance with the moving distance of the moving body 56, whereby the clamp mechanism described later is driven. The lock / release means described above is described in detail in Japanese Patent Application No. 59-29309.

On the other hand, as shown in FIGS. 6, 18, 19, and (a) and (c), the moving body 56 has other second and third recesses 56d,
56e is formed, and the second lever member 7
2 has a second opening 7 that can face the second and third recesses.
2d and a third opening 72e are formed. Two movable pieces 75 and 76 are interposed between the second and third recesses 56d and 56e and the second and third openings 72d and 72e. The second lever member 72 is moved relative to the moving body by the second and third concave portions 56d and 56e, the second and third opening portions 72d and 72e, and the movable pieces 75 and 76 in accordance with the movement of the moving body 56. Lock / release means for appropriately locking and releasing the locked state is provided. In other words, the second
The lever member 72 moves or stops together with the moving body,
Thus, the tray engaging member 53 (see FIG. 9) is driven. The lock / release means is described in detail in Japanese Patent Application No. 60-72908.

The above-described lock / release means, the second lever member 72,
The trays 11 and 12 (fourth) are provided by the moving body 56 and a driving force applying means including a motor 62 and the like for applying a driving force to the moving body 56.
Tray engaging member driving means for rotating and driving a tray engaging member 53 (shown in FIG. 9) so as to protrude and house the magazine body 8 (see FIGS. 5 and 5). That is,
The tray engaging member driving means functions as a disk moving means for moving the disk between the magazine 5 and the playing means as a performance means including a turntable and the like. Further, the tray 11 carrying the disk 10 to be played is constituted by the tray engaging member driving means, the chassis 16 as a supporting member, the moving member 18, the tray engaging member 53, the moving plates 37, 38 and the like. Alternatively, tray projecting means for projecting 12 from the magazine body 8 is configured.

As shown in FIG. 9, FIG. 23 to FIG. 25, on the moving member 18, the front-back direction (arrow Y direction and its opposite direction) and the left-right direction (arrow X direction and its opposite direction), respectively.
A pair of plate-like supports 78 and 79 are provided, and the disk carrying surface 23 of the turntable 23 (see FIGS. 8 and 10) is provided via pins 78a and 79a as support shafts.
It is attached to a bracket 18f formed on the moving member 18 so as to swing in a plane substantially perpendicular to a (shown in FIG. 10). The supports 78, 79 are shown in FIGS. 26 and 27.
The details are shown. At the free ends of the two supports 78 and 79, a disc-shaped pressing member 80 which abuts on the surface of the disc 10 opposite to the turntable 23 and cooperates with the turntable to perform a disc clamping action is rotatable. Installed. Specifically, the free end of the support 78 abuts on the disc pressing surface side of the flange portion 81a formed on the pressing member 80, and the free end of the support 79 is on the side opposite to the disc pressing surface of the flange portion 81a. , And the pressing member 80 is vertically held by the free ends of the two supports 78 and 79.

As shown in FIG. 23 to FIG. 27, each support 78, 7
Reference numeral 9 denotes a bracket portion 18 of the moving member 18 when the respective supports are in the positions shown by solid lines in FIGS. 24 and 25.
Restriction portions 78c, 79c are provided which engage with f and restrict the movement of the support members in a direction parallel to the direction in which the pins 78a, 79a extend. The positions of the supports 78, 79 shown by the chain double-dashed lines in FIGS. 24 and 25 are the positions when the supports are attached to the bracket portion 18f, and the positions shown by the solid lines are the positions of the supports. The position where the body performs its function.
That is, the position indicated by the solid line is the operating position, and the position indicated by the two-dot chain line is a non-moving position where no operation is performed.

As is clear from FIGS. 9 and 23, both supports 78,7
A clamper cam 82 formed in an arc shape is arranged above the 9 and is attached to the moving member 18 (see FIG. 9) so as to move around the center of the curvature via a pin 82a. . The details of the clamper cam 82 are shown in FIGS. 28 (a) to (c) and FIG. 29. Further, details of the pressing member 80 are shown in FIGS. 30 and 31. As is particularly clear from FIG. 28 (c) and FIG. 29, cylindrical protrusions 78d and 79d (third shown in FIG. 23) are provided at the substantially central portion of the clamper cam 82 so as to project from the upper surfaces of the supports 78 and 79. ), And cam portions 82d and 28e which are respectively engaged with these are formed. That is, each support 78, 79 is driven by the reciprocating movement of the clamper cam 82, and the pressing member 80 is attached to and detached from the turntable 23. Note that the cam portions 82d and 82e are configured such that the support members 78 and 79 are separated from the pressing member after the pressing member 80 is attracted to the turntable 23, and conversely,
The pressing member is formed so as to be detached from the turntable 23 after the holding of the pressing member 80 by the respective supports is completed.

As shown in FIGS. 23, 28 (a) and (c),
A U-shaped cutout portion 82f is formed at one end of the clamper cam 82, and the first lever member 71 (see FIGS. 6, 18, 21).
Projections 71e formed to extend downward in FIGS. (A) and (b)) are smoothly engaged. That is, when the first lever member 71 reciprocates, the clamper cam
82 is moved, causing supports 78 and 79 to swing up and down.

The clamper cam 82, the first lever member 71, the moving body 56 (illustrated in FIG. 19 and the like), and the first lever member 71 and the moving body 56 are appropriately locked and locked according to the movement of the moving body. A driving means for driving each of the support bodies 78 and 79 is provided by a lock / release means (comprising the movable piece 74 etc.) for releasing and a drive force applying means for applying a drive force to the moving body 56 including the motor 62 etc. It is configured. The driving means and the support members 78, 79 constitute a pressing member moving means for attaching and detaching the pressing member 80 to and from the turntable 23. The pressing member moving means and the pressing member 80 constitute a clamp mechanism for clamping the disk 10. Note that, as shown in FIGS. 24 and 25, the pressing member 80 causes the turntable 23 to carry the disk carrying surface 23a (first
(See FIG. 0) is provided with a spring member (not shown) for urging each of the supports 78 and 79 in a direction approaching the same.

FIG. 10 is a view taken along the line XX in FIG. 23, and as is clear from the figure, the free end of the support 78 is located at the outer peripheral portion of the pressing member 80 (main body 81 thereof). Positioning of the pressing member with respect to the turntable 23 by engagement, in this case,
A tapered portion 78g for positioning in a plane parallel to the disk carrying surface 23a of the turntable 23 is formed.
Thus, centering of the pressing member 80 with respect to the turntable 23 is performed with high accuracy.

Here, the shapes of the turntable 23 and the pressing member 80 will be described in detail.

As is clear from FIG. 10, the pressing member 80 is provided with a disc centering projection 80a that fits into the center hole of the disc 10 and performs centering of the disc. On the other hand, the turntable 23 is provided with a concave portion 23c into which the disk alignment projection is fitted when the disk is clamped. With this configuration, displacement of the disk 10 in a direction parallel to the disk carrying surface 23a of the turntable 23 is prevented.

The above-described clamp mechanism moves the disk 10 supported on the tray 11 or 12 protruded out of the magazine body 8 by the above-described tray protruding means to the disk supporting surface 23a of the turntable 23 (see FIG. 10). At right angles to the
In this case, it is moved upward (in the direction of arrow Z).

As shown in FIG. 9, a disc pressing member cam 87 formed in a substantially arcuate shape is provided on the moving member 18, and the center of the entire curvature is centered through the pin 87a. It is attached to the moving member 18 to move.
FIG. 32 shows the details of the disc pressing member drive cam 87. As shown in FIGS. 9 and 32, an opening 87c is formed at one end of the disc pressing member drive cam 87, and the pin protruding upward is provided at the end of the clamper cam 82 described above. 82h (Figs. 9 and 28 (a) and (b))
(See) smoothly fits in the opening. That is,
The disc pressing member drive cam 87 moves along with the movement of the clamper cam 82. This disc pressing member drive cam 87 is a disc that can be moved from above the tray 11 or 12 in the direction (vertical direction) perpendicular to the disc carrying surface 23a of the turntable 23 (see FIG. 10) by the above-mentioned clamping mechanism. To drive a disc pressing member 88 (shown in FIGS. 33 (a) and 33 (b)) which abuts on the surface facing the disc carrying surface and thereby maintains the parallelism of the disc 10 to the disc carrying surface. belongs to. That is, when the disc pressing member driving cam 87 moves along the curvature, the disc pressing member 88 moves up and down.

Before and after, as shown in FIG. 6 and FIG. 11, the chassis 16 is provided with two other switches alongside the detection switches 34 and 35.
Two detection switches 89 and 90 are mounted. The two detection switches 89 and 90 are for engaging with the moving body 56 driven by the motor 62 and detecting the moving position of the moving body.

As shown in FIG. 37, each of the detection switches 3 described above
The detection signals emitted from the 4,35,46,49,89 and 90 are transmitted to the control unit (CPU) 100 described above, and the motors 45,6 are driven by the operation signals sent from the control unit in response to these detection signals.
2, the turntable 23 and the pickup 101 operate at a predetermined timing described later.

34 (a) and 34 (b) show the tray engaging member 53 described above.
It shows the details. Further, FIGS. 35 (a) and 35 (b) show the rack portion 56a (FIGS. 19 (a), (b), and (d) of the moving body 56 (see FIGS. 6, 18, and 19) described above. )
(See FIG. 2). However, this gear 57 is formed by integrally molding a large gear portion (no reference numeral) and a small gear portion 57a, and the small gear portion 57a meshes with the rack portion 56a.

As shown in FIGS. 35 (a) and 35 (b), the small gear portion 57a of the gear 57 has a notch 57b formed in one of its teeth. On the other hand, as shown in FIGS. 19 (a), (b), and (d), the rack portion 56a of the moving body 56 with which the small gear portion 57a meshes has two protrusions corresponding to the cutout portion 57b. The portion 56g is formed. That is, when the small gear portion 57a of the gear 57 and the rack portion 56a are engaged with each other when the disc player is assembled, the gear 57 and the moving body 56 are not operated unless the cutout portion 57b and the protrusion 56g are aligned. It is structured so that it cannot be done.

36 (a) to (c) show the locking recess 5g of the magazine 5.
A lock member 67 (shown in FIG. 8) that locks the magazine at the mounting position with respect to the player housing 2 by engaging with the claw portion 67a of the magazine (see FIGS. 2B and 2C). It shows the details. This locking member 67 is
In FIG. 36 (a), it is possible to swing between the first position shown by the chain double-dashed line and the second position shown by the solid line. The first position is a position where the magazine 5 is locked, and the second position is a position where the locked state is released. Although not shown, a spring member is provided as urging means for urging the lock member 67 so that the claw portion 67a of the lock member 67 is engaged with the concave portion 5g of the magazine 5.

As shown in FIGS. 36 (b) and 36 (c), a protrusion 67c is formed on the side surface of the lock member 67. The protrusion 67c engages with the recess 57d formed in the gear 57 shown in FIG. 35 and the like when the lock member is in the second position and its vicinity, and the rotation of the gear is restricted.

As shown in FIG. 8 and FIG. 36 (b), the lock member 67 has its pin 67e inserted into the insertion hole (without reference numeral) of the bracket portion 16e protruding from the upright surface portion 16c of the chassis 16. It is rotatably attached by being pressed.

As shown in FIGS. 36 (a) to (c), the lock member 67 engages with the bracket portion 16e when the lock member is in the position shown by the solid line in FIG. 36 (c). Restricting portions 67g and 67h that restrict the movement of the lock member in a direction parallel to the extending direction of the pin 67e. The position of the lock member 67 indicated by the chain double-dashed line in FIG. 36 (c) is the position when the lock member is attached to the bracket portion 16e, and the position indicated by the solid line indicates the lock action of the lock member. It is a position to make.

Next, the operation of the multi-disk storage player having the above-mentioned configuration will be briefly described along the playing procedure with reference to FIGS. 38 to 40 (c).

The keyboard 102 of the operation button group 6 shown in FIG.
(Shown in the figure) is operated to issue a performance command for playing a desired disc, the disc player operates according to the flow chart shown in FIG. The DCNT signal shown in FIG. 38 is a detection signal emitted from the detection switch 46. Further, the DCHM signal is a detection signal emitted from the detection switch 49 which detects that the moving plate 37 is at the most returning position (forward movement limit position), that is, the home position.

As shown in FIG. 38, when a performance command is issued, the control section first confirms whether or not the DCNT signal is issued (step S1). When the DCNT signal is issued, the moving plate 37 is moved by a distance corresponding to the difference between the current address (current DISC) and the desired address (search DISC), and the detection switch 46 issues the DCNT signal. If not, move plate 37 to DC by detection switch 49
It is moved to the desired address (search DISC) position until the HM signal is issued, that is, after returning to the most returning position. Hereinafter, this operation will be described in detail.

First, the case where the DCNT signal is issued will be described. When the DCNT signal is issued, the control unit confirms whether the current address is the desired address (step S
2) If they are equal, the disc loading operation described later immediately starts. On the other hand, when the current address is not equal to the desired address, the current address is compared with the desired address (step S3), and the motor 45 is rotated forward or backward in response to this, and the moving plate 37 is moved forward (step S3).
4) Or retreat (step S5). While the moving plate 37 is moving, one DCNT signal is counted (steps S6 to
Then, it is confirmed whether the moving plate is moving forward or backward (step S10). If it is moving forward, the current DISC-1 is set as a new current address (step S1).
1) If the vehicle is moving backward, DISC + 1 is set as a new current address (step S12). Then, the new current address is compared with the desired address (steps S13 and S
14) Repeat this operation until the current address and the desired address match (step S15), and stop the moving plate 37 when they become equal (step S1).
6). Due to the positioning operation of the moving plates 37, 38, the cam grooves 37d, 38d formed in the moving plates 37, 38 and the guide groove 16e formed in the chassis 16 allow the movable plates 37, 38 to movably fit in the respective grooves. The pin 18a is moved up and down, and the moving member 18 provided with the pin 18a projecting vertically moves.
Therefore, the playing means including the turntable 23 provided on the moving member 18 and the tray projecting member 53 reach the position corresponding to the tray 11 or 12 carrying the disc to be played. After that, a disc loading operation described later is performed. 39 (a) to (f), the moving plate 37 is moved to position the playing means and the tray projecting member 53 so as to correspond to each of the six trays 11 and 12 of the magazine 5. It shows a state in which the moving member 18 is driven in six stages. As shown in FIGS. 39 (a) to 39 (f), the cam portion 42 that can be engaged with the operator of the detection switch 46.
e is oriented in the same direction at each stage, whereby the detection switch 46 issues a detection signal and the moving member 18 is positioned.

Next, when a performance command is issued when the DCNT signal is not issued, in this case, the moving plate 37 is moved forward (step S17) and the detection switch 49 causes the DCHM to move.
Until the signal is issued (step S18), that is, the home position is returned to the most returning position and the DCNT signal is obtained (step S19), the movable plate is moved to the position of the desired address. The positioning operation of the moving plate 37 to the desired address after obtaining the DCHM signal is performed along the above-described operation path (steps S1 to S16). Further, if the DCNT signal is not obtained even if the moving plate 37 is returned to the home position, it is judged whether a certain time has passed (step
S20) Stop the operation by issuing a warning, for example.

In this way, when the playing means and the tray engaging member 53 are positioned at the position corresponding to the tray carrying the disc to be played, the motor 62 then starts to rotate and the moving body 56.
Is driven backward (the direction opposite to the arrow Y direction).

At this time, the moving body 56 is in the locked state with the second lever member 72 by the lock / release means composed of the movable pieces 75, 76 (see FIG. 18, etc.). The first lever member 71 has not been locked with the moving body 56 yet. Therefore, only the second lever member 72 moves backward together with the moving body 56, whereby the tray engaging member 53 rotates counterclockwise in FIG. Therefore, as shown in FIG. 2 (b), a tray carrying a disk to be played (for example, tray B12)
Project from the magazine body 8, and the disk moves to a concentric position with respect to the disk holding surface 23a (see FIG. 10) of the turntable 23, that is, to a position directly below the disk holding surface.

Thereafter, the moving body 56 moves further backward (the direction opposite to the direction of the arrow Y), but the second lever member 72 is unlocked from the moving body, and at the same time, the first lever member 71 is moved to the moving body. Locked against. Therefore, the first lever member 71 moves rearward together with the moving body 56, whereby the support bodies 78 and 79 (illustrated in FIG. 23, etc.) of the clamp mechanism swing upward (in the direction of arrow Z). Therefore, the disc is lifted up and clamped to the turntable 23 (step S22). The upward movement of this disc is shown as DISC load (step S21) in FIG. Further, when the clamp completion signal is not issued even after a lapse of a certain time after the disk loading operation is performed (step S23), an alarm is issued, for example, to stop the operation.

Thus, the performance is enabled, and the turntable 23 and the carriage 24 (see FIG. 9) operate to start the performance.

When the performance is completed, the disc is stored in the magazine main body 8, but the disc storing operation is performed in the reverse of the above-described disc loading operation, and will not be described in detail. Hereinafter, the above operation is repeated according to the designated number of music pieces.

40 (a) to 40 (d), a toothless gear 42 integrally formed with a cam portion 42c for causing the detection switch 46 to generate a detection signal is meshed with a gear 41b at the next stage meshing with the toothless gear 42. It shows the state.

Further, FIGS. 41 (a) to 41 (d) show the engagement of the cam portions 42g and 41d corresponding to the respective meshing states of the toothless gear 42 and the gear 41 shown in FIGS. 40 (a) to 40 (d). It shows the combined state.

In this embodiment, a rack portion 37h is formed on the movable plate 37, and the double gear 40 meshed with the rack portion is formed.
By rotating the moving member 18, the moving member 18 is moved through the cam grooves 37d, 38d, thereby relative positioning of the magazine 5 serving as the disk storage portion and the playing means in the disk arrangement direction. , 38, a rack may be formed directly on the moving member 18 and a gear meshing with the rack may be driven to rotate.

As described above in detail, in the multiple disc storage player according to the present invention, the drive mechanism for moving the movable member carrying one of the disc storage portion and the reproducing means is rotated by the rotation of the drive source. A gear, a drive transmission member that meshes with the toothless gear, and a moving mechanism that moves the movable member according to the rotation of the drive transmission member, and the drive mechanism corresponds to the disc designated by the reproduction command. The control means is controlled by the control means to move the movable member to a designated position, and the control means includes a detection means that issues a detection signal each time the toothless portion of the toothless gear reaches the meshing position with the drive transmission member. The rotation drive of the drive source is started in response to the reproduction command, and the rotation drive of the drive source is stopped when the number of generations of the detection signal reaches the number corresponding to the designated position. Let me know.

In such a configuration, by appropriately setting the tooth-missing range of the tooth-missing gear, the tooth portion of the tooth-missing gear does not mesh with the drive transmission member, that is, the teeth of the drive transmission member are within the tooth-missing range. The toothless gear can be stopped so that it is in position. Therefore, even if the tooth-chipped gear rotates slightly due to the inertia of the drive source after the driving source has stopped in response to the stop signal, if the tooth-chipped range is made large enough, The tooth portions of the drive shaft do not yet mesh with the drive transmission member, and the power due to this inertia is not transmitted to the members after the drive transmission member. Therefore, the relative positioning of the disc housing portion and the reproducing means in the disc arrangement direction can be performed with extremely high precision.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the entirety of a multi-disk storage player according to the present invention, and FIGS. 2 (a) to 5 (b) show the first embodiment.
FIG. 6 is a view for explaining a magazine mounted in the player housing of the multiple disc storage player shown in FIG.
FIG. 7 is a plan view of the internal structure of the multi-disk storage player shown in FIG. 1, and FIGS. 7 and 8 are respectively related to FIG.
VII-VII arrow view and VIII-VIII arrow view, FIGS.
17 is a partial detailed view of the internal structure shown in FIGS. 6 to 8, and FIG. 18 is a sectional view taken along line XVIII-XVIII of FIG.
19 (a) to 36 (c) are partial detailed views of the internal structure, and FIG. 37 is a block diagram of the control system of the multiple disc storage player shown in FIGS. 1 to 36, 38. FIG. 39 is a diagram showing a flow chart for explaining the operation of the plural disc storage player shown in FIGS. 1 to 36, and FIGS. 39 (a) to 41 (d) are FIGS. FIG. 42 is a diagram for explaining the operation of the internal mechanism of the multiple disc storage player shown in FIG. 4, and FIGS. 42 to 44 are diagrams for explaining the conventional multiple disc storage player. Explanation of main part code 2 …… Player housing 5 …… Magazine 10 …… Disk 11,12 …… Tray 16 …… Chassis 18 …… Movement member 23 …… Turntable 37,38 …… Movement plate 37h, 56a… … Rack part 41d, 42g …… Cam part 42 …… Partial tooth gear 45,62 …… Motor 53 …… Tray engaging member 80 …… Pressing member

Claims (3)

(57) [Claims] 1. A positioning means for relatively positioning a disc housing portion capable of arranging and storing a plurality of discs and a reproducing means in the disc arranging direction, and moving the disc between the disc housing portion and the reproducing means. The positioning means corresponds to a disk designated by a reproduction command, including a disk moving means, the positioning means carries a movable member carrying one of the disk storage portion and the reproducing means, a drive mechanism for driving the movable member. A plurality of disk storage players comprising a control means for controlling the drive mechanism to move the movable member to a designated position, wherein the drive mechanism is a toothless gear rotated by rotation of a drive source, and the toothless gear. A movable member moving mechanism including a drive transmission member that moves the movable member according to the rotation of The control means includes a detection means that outputs a detection signal each time the tooth-chipped portion of the tooth-chipped gear reaches the meshing position with the drive transmission member, and starts rotation driving of the drive source in response to the reproduction command. Then, when the number of generations of the detection signal reaches the number corresponding to the designated position, the rotational drive of the drive source is stopped, and the multiple disc storage player is characterized. 2. The drive transmission member is a driven gear that meshes with a toothless gear, and rotation of the driven gear when the toothless portion of the toothless gear is in a meshing position with the driven gear. 2. The multiple disc storage player according to claim 1, further comprising a rotation restricting unit that restricts the rotation. 3. A disc storage portion and a reproducing means so that a predetermined disc accommodated in the disc storage portion can be conveyed to the reproducing means when the toothless portion of the tooth-missing gear reaches a position where it meshes with the drive transmission member. 2. The multi-disk storage player according to claim 1, wherein the relative positioning is performed.