JPS63167469A - Multidisk player - Google Patents

Abstract

PURPOSE:To prevent a disk holder from being loaded incompletely and to smooth the carrying of a disk, by regulating the rotation of a gear to be engaged with a rack part when the locking member of the disk holder is positioned at a non-locking position and in the neighborhood of the non-locking position. CONSTITUTION:A locking member 67 which locks the disk holder at the loading position of a player housing is mounted rotatably freely on the vertical part 16c of a chassis 16, and when the locking member 67 is positioned at the non- locking position and in the neighborhood of the non-locking position, a projection provided at the side plane part of the locking member 67 is engaged with a recessed part 57 formed on the gear to be engaged with the rack part of a moving body 56, thereby, the rotation of the gear 57 is regulated. Thereby, the protrusive operation of the tray is not performed until the disk holder is inserted completely into a device part in the player housing, and the carrying of the disk is not performed until the disk is inserted to a normal position.

Description

TECHNICAL FIELD The present invention relates to a disc player, and more particularly to a multi-disc player that can accommodate a plurality of discs and can sequentially select any of the stored discs for continuous play.

BACKGROUND ART A jukebox is generally known as a disc player that can store a plurality of discs and can sequentially select any of the stored discs to play continuously. However, conventional jukeboxes have very large bodies, making them unsuitable for home use.

In recent years, it has been called a digital audio disc (hereinafter abbreviated as DAD), and by recording digital signals, it is possible to increase the amount of information that can be stored compared to the conventional audio disc that contains analog signals, and it is easier to play. Several types of disks that generate less noise have been developed and are widely used.

Among these, disks with an outer diameter of about 12 mm, generally called compact disks, which record and read signals using laser light, are easy to handle and allow the overall size of the disk player to be miniaturized. It is.

Recently, a multi-disc player has been developed that can store a plurality of small DADs (for example, 5 to 6 discs) at all times and is suitable as a home jukebox that plays these discs continuously. By the way, a small DAD has a performance time of one hour and can accommodate approximately 1.5 times the amount of information as a conventional analog audio disc. Therefore, for example, if a song with a playing time of around 3 minutes is recorded on 6 discs, approximately 1
It can accommodate 20 songs, making it easy to cover your favorite genres such as jazz or enka.

A multi-disc player basically consists of a playing means including a turntable, a pickup, etc., a disc holder that holds a disc and is inserted into a mounting section in the player housing, and a disc in the disc holder that is moved to a playing position. The disc is provided with a disc ejecting and transporting mechanism that transports the disc onto the turntable and returns it from the turntable into the disc holder.

In a multi-disc player, when a disk in a disk holder is conveyed onto a turntable, the disk is moved in two directions, for example, in a direction parallel to the disk supporting surface of the turntable and in a direction substantially perpendicular thereto. However, in the multi-disc player that has already been developed, the disc ejecting and transporting mechanism for carrying out this transport directly picks up the disc in the disc holder.
The disk is of a type that grips the end of the disk in the direction of protrusion from the disk holder or substantially the entire disk and pulls it out of the disk holder, and the configuration of the disk ejecting and transporting mechanism including the gripping mechanism for gripping the disk is large. It is complex and requires a large amount of space for its operation.
It has been difficult to downsize the player as a whole, and this has led to an increase in coast.

In order to solve this problem, recently, as shown in FIG. 35 and FIG.
A housing 101 having an overall rectangular parallelepiped shape, and support shafts arranged within the housing in a direction substantially perpendicular to the disk supporting surface of the turntable (in the direction of arrow Z and the opposite direction) and extending in the arrangement direction. A disk 10 is provided rotatably about a disk 102 on each main surface.
A new multi-disc player has been developed, which includes a plurality of plate-shaped trays 104 that can support 3 discs and can be protruded from the housing along each main surface and accommodated therein. That is, by simply protruding the plate trays 104 each carrying a disk 103 from the housing 101, the disks 103 can be conveyed in one direction (disc conveyance in a direction parallel to the disk supporting surface of the turntable).
It is structured so that this is done.

Therefore, in a multi-disc player as described above, a disc stored in a disc holder is directly gripped by the protruding end of the disc from the disc holder or substantially the entire disc by a complicated gripping mechanism, and then removed from the disc holder. The structure is simpler than that provided with a pull-out type disc ejecting and transporting mechanism, and it becomes easier to reduce the size and cost of the player as a whole.

The specific structure of the above-mentioned disc ejecting and transporting mechanism that feeds the disc in two directions is as follows:
Tray protruding means for protruding and storing the tray 104 carrying the disc 104 onto the housing 101 of the disc holder, and a tray protruding means for causing the tray 104 carrying the disc 104 to protrude from and accommodate the disc 104 protruding from the housing, and the disc 103 carried on the tray 104 protruding outside the housing from the disc supporting surface of the turntable. The tray protruding means includes a support member (not shown) extending along the arrangement direction of each tray 104, and a disk moving means that moves in a substantially perpendicular direction, and a support member (not shown) extending along the arrangement direction of the trays 104. Z direction and its opposite direction)
a movable member (not shown) which is movably disposed on the movable member and carries a playing means (a turntable, a pickup, etc.); When the tray 10 is engaged with the
a tray engaging member 106 (shown in FIGS. 36 and 37) for projecting and retracting the disc holder 4 into the housing of the disc holder, and a tray engaging member 106 (shown in FIGS. Tray engaging member moving means for moving the engaging member 106 together with the moving member; and tray engaging member driving means for applying a driving force to the tray engaging member to project and retract the tray with respect to the housing. have.

That is, by moving the entire playing means including the turntable, pickup, etc. along with the moving member carrying the playing means along the arrangement direction of the trays 104 (the direction of arrow Z and the opposite direction), each of the trays is moved. 104 and the turntable in the tray arrangement direction, and also rotates the tray engaging member 106 to push each tray 104 and project each tray out of the housing 101 of the disc holder. The disc 103 on the lever tray is positioned directly below the turntable.

As shown in FIGS. 36 and 37, a pin 106a is protruded from the tray engaging member 106, and the pin 106a is inserted into an arcuate guide groove 107 formed in the moving member (not shown). The tray engaging member 106 is guided and rotated by slidably engaging with the tray engaging member 106 . As is clear from FIG. 36, the rotation center axis of each tray 104 (the center axis of the support shaft 102) and the rotation center axis (imaginary) of the tray engaging member 106 are made to coincide.

As shown in FIG. 38, the disc holder 100
Although the disc holder 100 is inserted into the mounting part 110 in the player housing 109, there is a concern that the user may press the operation button to start transporting the disc before the disc holder 100 is completely inserted into the mounting part 110. Ru. In the multi-disc player configured as described above, the disc ejecting and transporting mechanism may start operating even in such a state, and the tray 104 may not protrude to the normal position and the tray may collide with a member inside the player. Failure may occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and its object is to provide a multi-disc player in which disks are always transported smoothly.

A multi-disc player according to the present invention includes a tray engaging member that engages with the tray to cause the tray to protrude from and be housed in the housing, and a tray engaging member driving means that drives the tray engaging member, The tray engaging member driving means is provided movably in a predetermined direction and has a rack portion formed along the moving direction, and includes a moving body for driving the tray engaging member, and a gear meshing with the rack portion. and a driving force applying means for applying a driving force to the moving body,
A locking member that engages with the disc holder to lock the disc holder in the installed position with respect to the player housing engages with the gear to restrict rotation of the gear when the disc holder is at or near the unlocked position. It is characterized by what is done.

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

In FIG. 1, reference numeral 1 indicates the entire multi-disc 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 holder inside the player housing.

The opening 3a extends in the left-right direction. However, the left-right direction referred to herein refers to the front direction indicated by arrow Y, and the direction of arrow X is to the left.

Further, arrow Z indicates upward. Also provided on the front panel 3 are a group of operation buttons 6 and a display section 7 for operating the multi-disc player.

As shown in Figure 2 (ω or C>), the magazine 5
The magazine body 8 is a rectangular parallelepiped-shaped housing as a whole, and the magazine body 8 is a housing having a generally flat rectangular parallelepiped shape.
It has two types of rectangular plate trays, a total of six rectangular plate trays All and tray B12.

Tray All and tray B12, therefore each disk 10
are arranged and stored in order at a predetermined pitch in a direction perpendicular to a disk supporting surface of a turntable, which will be described later, in this case, in an up-down direction (direction of arrow Z and its opposite direction). Tray A11 and tray B12 are rotatably provided around a rotation support shaft 8a provided at the right rear end of the magazine body 8 and extending in the arrangement direction (vertical direction) of each tray. 8, it can be protruded and stored along each main surface.

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

The magazine body 8 is provided with seven partition walls 8b lined up in the vertical direction (in the direction of arrow Z and the opposite direction), and tray All and tray B12 are arranged between the partition walls. As is clear from FIG. 3 (ω, each partition wall 8b has a small circular opening 8c concentrically formed in the vicinity of the rotation support shaft 8a.
) and Figure 5 (ω.

(3) shows the details of tray All and tray B12, and as shown in both figures, each tray also has an opening 11a, which can face the opening 8c formed in each partition wall 8b. 12a is formed. Here, the opening 8C formed in the partition wall 8b is referred to as a first opening, whereas the openings 11a and 12a provided in tray A11 and tray B12 are referred to as second opening. Five spherical movable pieces 13a are fitted into each of the openings 8c, lla, and 12a and are movable along the direction in which the partition walls 8b are arranged (the Z direction and the opposite direction). The diameter of each spherical movable piece 13a is the same as that of each tray 11 arranged alternately.
, 12 is equal to the array pitch dimension. Further, each of the spherical movable pieces is biased toward 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), a press lever 14 is provided at the front left end of the magazine body 8 and extends substantially in the front-rear direction (direction of arrow Y and the opposite direction thereof), and one end thereof In this case, the front end portion is swingably attached to the magazine body 8 via a pin 14a. However, the bottle 14a extends in the vertical direction (arrow Z direction and the opposite direction). The other end, ie, the rear end, of the pressing lever 14 can smoothly engage the free end of each tray 11 and 12. A spring member 14b is engaged with the pressing lever 14. This spring member 14b biases the pressing lever 14 in the counterclockwise direction (second exit), thereby applying a tray pressing force to the pressing lever. Press lever 14
A protrusion 14e is formed on the player housing 2. The protrusion 14e can come into contact with the edge 3b of the opening 3a of the player housing 2 when the magazine 5 is removed from the magazine mounting portion in the player housing 2. This protrusion 14c contacts the edge 3b of the opening 3a, thereby urging the suppression lever 1 to urge each tray 11 and 12 toward the storage position within the magazine body 8.
It acts to swing the main body of No. 4.

With the above-mentioned suppression lever 14 and spring member 14b,
A suppressing means is configured to press each tray 11 and 12 toward the storage position within the magazine body 8 and the rotation support shaft 8a. Further, the suppressing means, an opening 8c (first opening) formed in each partition wall of the magazine main body 8, and openings 11a and 12 formed in each tray 11 and 12, respectively, are provided.
A (second opening), each spherical movable piece 13a, and the leaf spring 13b constitute a holding mechanism that holds each tray 11 and 12 at the storage position within the magazine body 8.

As is clear from FIG. 4 (ω, mountain) and FIG. The only difference is the shape and position of the hooking claw parts 11b and 12b. The free end of each tray 11 and 12 has a notch 11c in which the above-mentioned pressing lever 14 engages.
, 12c, and a pair of jig insertion holes lid, lie,
12d and 12e are formed.

In addition, flexible members 11f and 12f made of synthetic leather or the like protrude from the main surfaces of the adjacent trays at predetermined positions that can face the disk supporting surfaces of each tray 11 and 12.
' is provided. Each tray 11 and 12 also has flexible members 11f' and 121' provided on the adjacent tray.
Arc-shaped recesses 11h, 111.12h along the movement trajectory of
, 121 are provided. These recesses 11h, 111.
By providing the trays 12h and 121, the size of the total of six trays 11 and 12 stacked on top of each other in the stacking direction can be kept small. That is, the magazine 5 as a whole is made thinner.

As shown in FIG. 2(C), an engaging pawl 5a is provided approximately at the center of the right side of the magazine 5, and a pin 5
b is attached to the magazine body 8 at one end so as to be swingable within a predetermined range. Further, at the front end of the right side of the magazine 5, another engaging claw 5C is provided at one end so as to be swingable within a predetermined range via a bin 5d. This engaging claw 5c has its free end urged outward by a coil spring 5e. Each of these engaging pawls 5a and 5c can engage with the edge 3b of the opening 3a (see FIG. 1 and second appearance) at its free end.

The above-mentioned engaging claws 5a and 5c and the coil spring 5e constitute a mounting prevention means that prevents the magazine 5 from being mounted when the mounting position of the magazine 5 with respect to the mounting portion in the player housing 2 is incorrect. That is, when trying to attach the magazine 5 to the mounting part in an upside-down state, the engaging claw 5a swings due to its own weight and protrudes outward from the magazine 5, and the free end of the engaging claw opens. Part 3a
It engages with the edge 3b (described above) and prevents the magazine 5 from being mounted. In addition, when trying to attach the magazine 5 to the above mounting part with the front and back reversed, the coil spring 5
The engaging claw 5c, which is projected outwardly by the arrow e, engages with the edge 3b of the opening 3a, thereby preventing the magazine 5 from being installed.

In addition, the above-mentioned engaging claws 5a, 5c and coil spring 5e
By constructing the mounting prevention means using extremely simple members such as the above, the construction is simple and costs can be easily reduced.

As shown in FIGS. 2(b) and 3(1), a circular opening 14e is formed in the protrusion 14c of the pressing lever 14, which is swingably provided in the magazine 5. On the other hand, as shown in FIG. A portion 8e is formed. A circular recess 8r is formed at the upper end of the protrusion 8d, and a spherical movable piece 8g is arranged in the recess in the up and down direction (arrow Z direction and the opposite direction).
It is movably inserted in the The opening 14g formed in the protrusion 14c of the pressing lever 14 is opened in the four parts 8 when the pressing lever is in the position shown by the solid line in FIG.
r, and a portion of the spherical movable piece 8g can fit into this opening 14e.

With the above-mentioned suppression lever 14 and movable piece 8g,
Therefore, when the magazine 5 serving as a disk holder is in an upside-down position, the magazine body 8 of each tray 11 and 12
A protrusion regulating means is configured to regulate protrusion from.

That is, when the magazine 5 is in an upside down state,
The spherical movable piece 8g moves due to its own weight, and a part of the movable piece fits into the opening 14e of the press lever, thereby restricting the swinging of the press lever 14, and thereby each tray 11.1
2 is prevented from protruding outside the magazine body 8.

In addition, by configuring the protrusion regulating means with members having simple shapes such as the pressing lever 14 and the movable piece 8g, the structure is simple and costs can be easily reduced. Furthermore, regarding the 8 g of spherical movable pieces, commercially available ones can be used without specially manufacturing them.

As shown in FIG. 1, a chassis 16 serving as a support member is mounted on a bottom plate 15 fixedly provided within the housing 2. As shown in FIG. The chassis 16 includes a flat portion 16a extending in the front-rear direction (arrow Y direction and the opposite direction) and the left-right direction (arrow It consists of a pair of vertical surfaces 16b and 16c extending in the direction of arrow Z (direction of arrow Z and the opposite direction, that is, the direction in which the trays are arranged).

As shown in FIGS. 6 to 9, a moving member 18 is disposed between the rear ends of the pair of vertical surfaces 16b and 16c of the chassis 16, and It is attached so as to be movable in the vertical direction (arrow Z direction and its opposite direction), that is, in the arrangement direction of each tray 11, 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 clear from FIGS. 8 and 10, a turntable is mounted on the support plate. 23 is attached. As shown in FIG. 9, a carriage 24 carrying an optical pickup means is also disposed on the carrier plate 22, and a carriage 24 carrying an optical pickup means is also disposed on the carrier plate 22.
0), in this case, approximately in the left-right direction (
It is attached to the support plate 22 so as to be movable in the direction of arrow X and the opposite direction. In addition, turntable 2
3 is directly rotationally driven by a spindle motor 25 shown in FIGS. 8 to 10. In addition, the support plate 22
A carriage drive means for driving the carriage 24 is provided above.

The above turntable 23 and spindle motor 25
and a carriage 24 including an optical pickup means.
The carriage driving means and the above-mentioned carriage driving means constitute a playing means for playing a disc. That is, the playing means is supported on the moving member 18 and moves in the up and down direction (in the direction of 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 that applies a clamping force to a disc-shaped pressing member of a clamping mechanism, which will be described later. The support plate 22, which serves as a holding member for holding the spindle motor 25 and the turntable 23, is made of a magnetic material, and, as is clear from FIG. 10, is arranged on the side of the turntable 23 opposite to the disk support surface. Therefore, the turntable 23 is attracted toward the support plate 22 by the magnetic force of the magnet 23b, and as a result, the output shaft 25 of the spindle motor 25
a and a bearing portion (not shown) that supports the output shaft are brought into close contact with each other.

As shown in FIGS. 11 and 12, the chassis 16
A moving lever 33 made of a steel plate is attached to the lower surface of the lever 33 so as to be movable along the magazine mounting direction, that is, the front-rear direction (direction of arrow Y and the opposite direction thereof). Details of the moving lever 33 are shown in FIGS. 13(a) and 13(b).

As is clear from FIG. 13 (ω and peaks), a projecting portion 33a is provided at the rear end of the moving lever 33 and extends downward, with which the rear end of the magazine 5 can engage. There is. In other words, when the rear end of the magazine 5 engages with the projecting portion 33a, the moving lever 33 is moved rearward. Further, a coil spring (not shown) is connected to the moving lever 33 for imparting a bias force toward the front (in the direction of arrow Y) to the moving lever.

As shown in FIGS. 6 and 11, the moving bar 3
On the left side of 3, there is a protruding part 3 of the moving lever that moves back and forth.
A pair of detection switches 34 and 35 are arranged so that the winter operating elements 3b and 33c (see also FIG. 13) engage with their operating elements to operate the winter operating elements.

The above-mentioned moving lever 33 and detection switches 34 and 35
This constitutes a magazine attachment detection means for detecting that the magazine 5 is attached to the magazine tube inside the player housing 2.

Next, a movable member moving means for moving the above-mentioned movable member 18 in the vertical direction (arrow Z direction and the opposite direction) will be explained.

As shown in FIGS. 6 to 8, a pair of longitudinally movable 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. In addition, the details of the moving plates 37 and 38 are shown in FIGS. 14 and 15. As is particularly clear from FIGS. 7 and 8, each moving plate 37, 38 has guide grooves 37a, 3 extending in the direction of extension of each moving plate.
7b, 38a, 38b, 38c are formed, and each moving plate 37, 38 has its respective indoor groove connected to the vertical surface 16.
b. The chassis 16, which is a supporting member, is movably fitted onto a pin 16d protruding from the outer surface of the chassis 16c.
is attached to. That is, the movable plates 37 and 38 are capable of reciprocating in the front and rear directions.

As shown in FIGS. 6 to 9, the moving member 18 has a total of four pins 18a, two on the left side and two on the right side.
is installed protrudingly. As is clear from FIGS. 7 and 8, these pins are movably fitted into four guide grooves 16c extending vertically in the left and right surfaces 16b and 16C of the chassis 16, which is a supporting member. As a result, the moving member 18 is guided in the vertical direction.

Pins 18a protruding from both left and right sides of the movable member 18 protrude to the outside of the chassis 16 through a guide groove 16e, and stepped cam holes 37d and 38d formed in the movable plates 37 and 38 are connected to the pins. It is movably engaged with 18a. The cam hole 37d formed in the moving plate 37 is formed as a whole so as to be inclined forward (in the direction of arrow Y) and downward (in the direction of arrow Z). Further, the cam hole 38d formed in the moving plate 38 is formed so as to be inclined upward as a whole 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 relative to each other. As shown in FIGS. 6 and 8, the rear end of the right movable plate 38 is provided so that the movable plate 38 is always placed rearward (in the opposite direction of arrow Y).
A coil spring 38h is connected to the coil spring 38h.

Therefore, the cam hole 38d formed in this moving plate 38
The gap between the movable member 18 and the pin 18a slidingly in contact with the cam hole is always zero, and the moving member 18 can be moved up and down with high precision.

As shown in FIGS. 6, 7, and 14, a rack portion 37h is formed at the front end of the left movable plate 37 along the direction in which the movable plate extends. As is clear from FIGS. 6 and 7, a small gear portion 40a of a double gear 40 provided on the chassis 16 meshes with the rack portion 37h. The moving plate 37 is connected to the motor 4 via a gear reduction mechanism 41 including this double gear 40.
5.

As shown in FIG. 6, a rotating lever 47 is disposed between the left and right moving plates 37 and 38, and
It is attached to the chassis 16 via a bottle 16g protruding from the chassis 16 so as to rotate around a virtual center 47a.

Both ends of the rotating lever 47 have left and right movement play 37°38
It is pivoted to.

The motor 45, the gear reduction mechanism 41, the rotary lever 47, and the peripheral small members related thereto constitute a driving force applying means that applies a driving force to the moving plates 37, 38. Further, the driving force applying means and the moving plates 37 and 38 constitute a moving member moving means for moving the moving member 18 in the vertical direction (in the direction of arrow Z and the opposite direction).

As shown in FIG. 6, a detection switch 49 is provided at the upper part of the left vertical surface portion 16b of the chassis 16. This detection switch 49 is for detecting that the movable plate 37, which reciprocates in the front-rear direction, is at the most backward movement position (forward movement limit position), and a part of the movable plate 37 is connected to its actuator. It works by engaging. An address plate 50 having six slits 50a aligned along the moving direction of the moving plate 37 is provided on the right side of the front end of the moving plate 37. Further, behind the detection switch 49, a photosensor 51 is provided corresponding to the slit 50 of the address plate for detecting the slit. Note that the detection switch 49 will be referred to as a first sensor, and the photosensor 51 will be referred to as a second sensor. The slit detection signal obtained from the second sensor is sent to a counter (not shown) that counts the slit detection signal. Further, a control unit (not shown) that automatically controls the multi-disc player is disposed at a predetermined position in the player housing 2, and the control unit controls the moving plate 37 according to the count value of the counter.
Know the stopping position.

The above-described detection switch 49 as the first sensor, the address plate 50, and the photosensor 51 as the second sensor,
The counter and the control section constitute a positioning mechanism that moves the moving plate 37 to a desired address position and positions it at that position. The positioning mechanism is
If a movement command is received while the photosensor 51, which is the second sensor, is emitting a slit detection signal, the moving plate 37 is moved by a distance corresponding to the difference between the current address and the desired address, and the photosensor 51 emits the slit detection signal. If a movement command is issued when no movement command is issued, the movement plate 37 is moved (backwards) until a detection signal is obtained from a detection switch 49 serving as a first sensor, and then moved to the desired address position.

As shown in FIG. 9, the right front end of the movable member 18 engages with each of the trays 11, 12 (see FIG. 2<b), etc.) in the magazine to move each tray. Magazine body 8
A tray engaging member 53 is provided for protruding to the outside of the tray. The tray engaging member 53 as a whole is formed in an oval shape, and a pin 53a protruding from the tray engaging member is slidably engaged with an arcuate guide groove 18d formed in the moving member 18. be guided by. That is, the tray engaging member 53 rotates with the center of curvature of the arcuate guide groove 18d as the rotation axis, and its rotating ends 53b and 53c
The trays 11 and 12 are pushed to protrude from and be housed in the magazine body 8.

Note that, as is clear from FIG. 9, the tray engaging member 53
The virtual rotation axis (the center of curvature of the arcuate guide groove 18d) and the rotation support shaft 8a of each tray 11, 12 are aligned. Further, each tray 11 and 12 has a portion 11k near its rotation support shaft 8a.

12k (see FIGS. 4(a) and 5(ω)) is pushed to the outside of the magazine body 8 by being pushed by the tray engaging member 53. As shown in FIG. The starting end 18e and the terminal end 181' extend substantially perpendicular to the direction of a driving crab P applied to the tray engaging member 53 by a tray engaging member driving means, which will be described later.

Note that since the tray engaging member 53 is provided on the moving member 18, the above-mentioned moving member moving means (consisting of the moving plates 37, 38, etc.) and the address plate 50
A tray engaging member moving means for moving the tray engaging member 53 together with the moving member 18 to a position where it engages with the tray (11 or 12) carrying the disc 10 to be played is configured. There is.

Next, each of the trays 11 and 12 described above is inserted into the magazine main body 8.
The tray engaging member driving means for rotationally driving the tray engaging member 53 to protrude from the tray will be explained.

As shown in FIGS. 6 and 16, a movable body 56 extending in the front-rear direction is arranged on the lower right side of the chassis 16, and is attached to the chassis 16 so as to be movable in the direction of extension. ing. The details of the moving body 56 are shown in FIG.
a is formed. A small gear portion 57a of a double gear 57 (see FIGS. 6 and 8) provided on the chassis 16'' is engaged with the rack portion 56a. Mobile object 5
6 is driven by a motor 62 via a gear reduction mechanism 58 including this double gear 57.

The gear reduction mechanism 58 and the motor 62 constitute a driving force applying means that applies a driving force to the movable body 56.

As shown in FIGS. 12 and 18, near the deepest part of the magazine mounting part in the player housing 2, there is a hole for allowing the magazine 5 mounted in the magazine mounting part to protrude outside the magazine mounting part. A swing lever 63 is arranged to extend substantially in the left-right direction, and is swingably attached to a sub-chassis 64 provided at the bottom of the chassis 16 via a pin 63a at a substantially central portion thereof. . However, the pin 63a extends in the vertical direction (arrow Z direction and the opposite direction). As is clear from the figure, a projecting portion 63b extending upward is provided at the right end of the swinging lever 63, and the swinging lever 63 contacts the rear end of the magazine 5 at the projecting portion. . Further, a gear portion 63c having the pin 63a as the center of curvature is formed at the left end portion of the swing lever 63, and a braking gear 65a (first
2 shown) is meshed with this gear portion 63c. Damper 6
5 applies braking force using the viscous resistance of a viscous agent such as grease held inside. Note that, as shown in FIG. 18, the swing lever 63 is supported by a coil spring 63.
The magazine ejection force is given by d.

The above-mentioned swing lever 63, damper 65, and coil spring 63d constitute a protrusion means for causing the magazine 5 to protrude from the magazine mounting portion in the player housing 2 to the outside.

As shown in FIG. 8, one rotating end of the right side elevational portion 16c of the chassis 16 has a locking recess 5g of the magazine 5.
A locking member 67 is rotatably provided to lock the magazine in the installed position with respect to the player housing 2 by engaging with the locking member 67 (see FIG. 2) and (C). Further, the locked state of the magazine 5 by the locking member is released by the forward movement of the moving body 56 mentioned above.

As shown in FIGS. 6 and 16, at the right end of the chassis 16, a first lever member 71 and a second lever member 7, which both extend in the front-rear direction (direction of arrow Y and the opposite direction), are provided.
2 are arranged, and are attached to the chassis 16 so as to be able to reciprocate in each direction of extension. 19th
Figures (fields, mountains) and Figure 20 (ω, mountains) show the 7th member of Ruba 1.
Details of the first and second lever members 72 are shown. The first lever member 71 is for driving a support body which is a component of a clamp mechanism which will be described later.
Reference numeral 2 is for rotating the tray engaging member 53 (see FIG. 9) via an intermediate lever 73 (shown in FIGS. 6 and 16). The intermediate lever 73 is rotatably provided on the chassis 16 via a pin 73a extending in the vertical direction, and has a cam groove 73 formed at one end of the rotation.
b (shown in FIGS. 6 and 16), the second lever member 7
The pin 72a provided protrudingly from 2 engages with the pin 72a to rotate. A rod 73c extending downward is provided at the other rotating end of the intermediate lever 73, and this rod 73c fits into a hole 53d formed in the tray engaging member 53 (shown in the ninth figure), thereby engaging the tray. The mating 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 and the cam groove 73b into close contact with each other.

Further, the above-mentioned cam groove 73b is formed so that after the tray engaging member 53 pushes the tray All or the tray B12 and stores it in the magazine body 8, the tray engaging member is separated from each tray. .

Both the above-mentioned first lever member 71 and the second lever part member 73 are moved by the above-mentioned moving body 56.

As shown in FIGS. 6, 16, and 17 (ω and (C)), a first recess 56c is formed at a predetermined position of the moving body 56. As shown in FIG. 16, the first lever member 71 has this first fourth portion 56c.
A first opening portion 71c that can face the first opening portion 71c is formed, and a movable piece 74 that can engage with the first fourth portion 56c is formed in the first opening portion.
is provided. These first recessed portions 56C, first opening portions 71C, movable pieces 74, and the like suitably lock the first lever member 71 to the movable body 56 as the movable body 56 moves, and release the locked state. A lock/release means is configured. That is, the first lever member 71 moves together with the moving body 56 depending on the moving distance of the moving body 56,
This causes the clamp mechanism described later to be driven. The above locking/unlocking means is detailed in Japanese Patent Application No. 59-29309.

On the other hand, Fig. 6, Fig. 16, Fig. 17 (a) and (ell
: As shown, other second and third recessed parts 56d and 56e are formed in the movable body 56, and on the other hand, the second lever member 72 has a recessed part facing these second and third recessed parts. A second opening portion 72d and a third opening portion 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 opening parts 72d and 72e. These second and third recesses 56d and 56e, second and third opening parts 72d and 720
In addition, the movable pieces 75, 76, etc. constitute a locking/releasing means for appropriately locking the second lever member 72 with respect to the moving body 56 according to the movement of the moving body 56, and releasing the locked state. There is. That is, the second lever member 72 moves or stops together with the moving body 56 depending on the moving distance of the moving body 56, thereby driving the tray engaging member 53 (see FIG. 9). The locking/unlocking means is detailed in Japanese Patent Application No. 60-072908.

The locking/releasing means described above, the second lever member 72,
The trays 11 and 12 (see FIGS. 4 and 5) are protruded from and stored in the magazine body 8 by the movable body 56 and a driving force applying means that includes a motor 62 and the like and applies a driving force to the movable body 56. A tray engaging member driving means is configured to rotationally drive the tray engaging member 53 (illustrated in FIG. 9). Further, the tray engaging member driving means, the chassis 16 as a supporting member, the moving member 18, and the tray engaging member 5
3 and the tray engaging member moving means (described above) consisting of the moving plates 37, 38, etc., constitute a tray projecting means for projecting the tray 11 or 12 carrying the disc 10 to be played from the magazine body 8. ing.

As shown in FIG. 9, FIG. 21 to FIG. 23, on the movable member 18, there is a structure extending in the front-rear direction (direction of arrow Y and the opposite direction) and the left-right direction (direction of arrow X and the opposite direction). A pair of plate-shaped supports 78 and 79 are provided, and pins 78a and 79a as support shafts are provided.
through the turntable 23 (see Figures 8 and 10)
It is attached to a bracket portion 181' formed on the moving member 18 so as to swing in a plane substantially perpendicular to the disk supporting surface 23a (shown in FIG. 10). Details of each support 78, 79 are shown in FIGS. 24 and 25. At the free ends of both supports 78 and 79, there is rotatably a disk-shaped suppressing member 80 that comes into contact with the surface of the disk 10 opposite to the turntable 23 and cooperates with the turntable to perform a disk clamping action. installed.

Specifically, the free end portion of the support body 78 comes into contact with the disk pressing surface side of the flange portion 81a formed on the suppressing member 80,
Further, the free end of the support body 79 is in contact with the opposite side of the disk pressing surface of the flange portion 81a, and both the support bodies 78, 79
The pressing member 80 is held in the vertical direction by each free end portion of the pressing member 80 .

As shown in FIGS. 21 to 25, each support 7
8.79, each support is shown in FIG.

When in the position shown by the solid line in FIG. 23, it engages with the bracket portion 18'' of the movable member 18 to restrict movement of each support in a direction parallel to the direction of extension of each of the pins 78a, 79a. Regulating portions 78c and 79c are provided.The positions of the respective supports 78 and 79 indicated by two-dot chain lines in FIGS. 22 and 23 are the positions when the respective supports are attached to the bracket portion 18f, The positions indicated by the solid lines are the positions where each support performs its function. That is, the positions indicated by the solid lines are the operating positions, and the positions indicated by the two-dot chain line are the positions in which they do not perform any action. It's the location.

As is clear from FIGS. 9 and 21, both supports 78
．． A clamper cam 82 having an arcuate shape is disposed above the clamper cam 79, and is attached to the moving member 18 (see FIG. 9) so as to move around the center of curvature of the clamper cam 82 via the pin 82a. . Details of the clamper cam 82 are shown in FIG. 26 (Table C) and FIG. 27.

Further, details of the suppressing member 80 are shown in FIGS. 28 and 29. As is particularly clear from FIGS. 26(C) and 27, the clamper cam 82 has a cylindrical protrusion 78d protruding from the upper surface of each support 78 and 79 at approximately the center thereof.
, 79d (shown in Figure 21), respectively.
d, 82e are formed. That is, as the clamper cam 82 reciprocates, each of the supports 78 and 79 is driven, and the suppressing member 80 is attached to and detached from the turntable 23. In addition, each of the above-mentioned cam portions 82d, 8
2e, after the pressing member 80 is attracted to the turntable 23, each of the supports 78 and 79 is separated from the suppressing member, and conversely, the clamping of the pressing member 80 by each of the supports is completed. The suppressing member is formed so as to be detached from the turntable 23 later.

As shown in FIGS. 21 and 26 (ω and (C),
A U-shaped notch 82r is formed at one end of the clamper cam 82, and a U-shaped notch 82r is formed in the lower part of the first lever member 71 (shown in FIGS. 6, 16, and 19 (ω and (1))). The protrusion 71e formed to extend is smoothly engaged. That is, by reciprocating the first lever member 71, the clamper cam 82 is moved, and the supports 78 and 79 are moved.
oscillates up and down.

The aforementioned clamper cam 82, the first lever member 71, the movable body 56 (shown in FIG. 17 etc.), and the first lever member 7.
1 and the movable body 6 as appropriate according to the movement of the movable body and unlocking means (consisting of a movable piece 74, etc.), and a motor 62 etc., which applies a driving force to the movable body 56. Each of the above-mentioned supports 7 is
8 and 79 are configured.

Further, the driving means and the supports 78 and 79 constitute a suppressing member moving means for attaching and detaching the suppressing member 80 to and from the turntable 23. Further, the suppressing member moving means and the pressing member 80 constitute a clamping mechanism that clamps the disk 10. Note that, as shown in FIGS. 22 and 23, the suppressing member 80 is attached to the disk supporting surface 23a of the turntable 23 (see FIG. 10).
A spring member (not shown) is provided for biasing each support 78 and 79 in a direction toward .

FIG. 10 shows the X-X arrow view with respect to FIG. 21, and as is clear from reading the figure, the free end of the support 78 is connected to the outer periphery of (the main body 81 of) the suppressing member 80. In addition, a tapered portion 78g is formed to position the suppressing member relative to the turntable 23, in this case positioning within a plane parallel to the disk supporting surface 23a of the turntable 23. Thereby, the suppression member 80 is centered with respect to the turntable 23 with high precision.

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

As is clear from FIG. 10, the pressing member 80 is provided with a disk alignment protrusion 80a that fits into the center hole of the disk 10 to align the disk. On the other hand, the turntable 23 is provided with a recess 23c into which the disk alignment protrusion fits when the disk is clamped. This configuration prevents the disc 10 from shifting in a direction parallel to the disc supporting surface 23a of the turntable 23.

The above-mentioned clamp mechanism holds the disc 10 supported on the tray 11 or 12 which is projected outside the magazine body 8 by the tray projecting means described above onto the turntable 2.
It acts as a disk moving means for moving the disk in a direction perpendicular to the disk supporting surface 23a of No. 3 (see FIG. 10), in this case upward (in the direction of arrow Z). Further, the magazine 5 is moved by the disk moving means and the tray protruding means.
A disk ejecting and conveying mechanism is configured to sequentially select any disk 10 in the table and convey it onto the disk supporting surface 23a of the turntable 23.

As shown in FIG. 9, a disk holding part drive cam 87 formed in a substantially arcuate shape is provided on the moving member 18, and the center of the entire curvature of the moving member 18 is moved through a pin 87a. It is attached to a moving member 18 for centering movement. FIG. 30 shows this disk holding member drive cam 87.
The details are shown. As shown in FIGS. 9 and 30, an opening 87c is formed at one end of the disk pressing member driving cam 87, and the above-mentioned clamper cam 82
A pin 82h (Fig. 9,
(see FIG. 26(a) and crest) is smoothly fitted into the opening. That is, as the clamper cam 82 moves, the disk pressing member drive cam 87 moves. This disk holding member drive cam 87
The disc holding surface 23a (10th
A disk holding member that comes into contact with the surface facing the disk supporting surface of the disk that is moved in a direction perpendicular to (see figure) (vertical direction), thereby maintaining the parallelism of the disk 10 with respect to the disk supporting surface. 88 (shown in Figure 31 (ω and city)).

That is, when the disk holding member drive cam 87 moves along its curvature, the disk holding member 88 moves up and down.

The story goes back and forth, but as shown in FIGS. 6 and 11, two other detection switches 89 and 90 are attached to the chassis 16 alongside the detection switches 34 and 35. Both 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.

In addition, each of the above-mentioned detection switches 34, 35, 49, 89
．． The detection signals emitted from the and 90 and the photosensor 51 are transmitted to the aforementioned control unit (not shown), and the motors 45, 62 and turntable 23 are activated by operation signals sent from the control unit in response to these detection signals. It operates at a predetermined timing, which will be described later.

FIG. 32 (fields and mountains) shows details of the tray engaging member 53 mentioned above. In addition, in FIG. 33 (ω and ω), the rack portion 56a of the above-mentioned moving body 56 (see FIGS. 6, 16, and 17) (see FIG. 17 (ω)).

This figure shows the details of the gear 57 that meshes with the gears 57 and 57 shown in FIG. However, this gear 57 is formed by integrally molding a large gear part (no reference numeral) and a small gear part 57a, and meshes with the rack part 56a at the small gear part 57a.

As shown in FIG. 33 (ω and peaks), a 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 FIG.
The rack portion 56a of No. 6 has two holes corresponding to the notch portion 57b.
Two protrusions 56g are formed. That is, when assembling the disc player, when the small gear portion 57a of the gear 57 and the rack portion 56a are engaged, if the notch portion 57b and the protrusion 56g are not aligned, the differential movement of the gear 57 and the movable body 56 will be interrupted. It is structured in such a way that it does not occur.

Figure 34 (Tanaishuku C) shows the locking recess 5g of the magazine 5.
(see Fig. 2) and (C)) with its claw portion 67a, the magazine is moved to the player housing 2.
A locking member 67 (eighth
(Illustrated in Figure).

This locking member 67 can swing between a first position shown by a chain double-dashed line and a second position shown by a solid line in FIG. The second position is a position where the locked state is released.Although not shown, the locking member 67 is moved so that the claw portion 67a of the locking member 67 engages with the recessed portion 5g of the magazine 5. A spring member is provided as a biasing means for biasing.

As shown in FIGS. 34(a) and 34(c), a protrusion 67c is formed on the side surface of the locking member 67.

When the locking member is at or near the second position, the protrusion 67c engages with a recess 57d formed in the gear 57 shown in FIG. 33, etc., and rotation of the gear is restricted.

As shown in FIG. 8 and FIG. 34(b), the lock member 67 inserts its pin 67e into an insertion hole (no reference numeral) of a bracket portion 16e protruding from the vertical surface portion 16c of the chassis 16. It is rotatably attached by tightening it.

As shown in FIG. 34 (B to C), the lock member 67 is engaged with the bracket portion 16c when the lock member is in the position shown by the solid line in FIG. 34 (C). Regulating portions 67g and 67h that restrict movement of the locking member in a direction parallel to the direction in which the pin 67e extends.
is formed. The position of the locking member 67 indicated by the two-dot chain line in FIG. This is the position where it is done.

Next, the operation of the multi-disc player configured as described above will be briefly explained along with the playing procedure.

First, when the disc to be played is specified by operating the operation button group 6 shown in FIG.
A driving voltage is supplied to the terminal 45 (see Fig. 6, etc.), and the moving plates 37 and 38 move forward (in the direction of arrow Y) or backward (in the direction of arrow Y).
They each start moving in the opposite direction of arrow Y). Therefore, the stepped cam grooves 37d formed in the moving plates 37, 38,
38d and the guide grooves 16e formed in the chassis 16, the pins 18a that are movably fitted into the respective grooves are moved up and down, and the moving member 18 from which the pins 18a are protruded is moved up and down. . Accordingly, the tray engaging member 53 (shown in FIG. 9) provided on the moving member 18 reaches the engaging position with the tray 11 or 12 carrying the disc to be played.

In this way, when the tray engaging member 53 is positioned at the engaging position with the tray carrying the disc to be played,
Next, the motor 62 (see FIG. 6, etc.) starts rotating, and the movable body 56 is driven backward (in the opposite direction of arrow Y).

At this time, the movable body 56 is in a locked state with the second lever member 72 by locking/releasing means comprising movable pieces 75, 76 (see FIG. 16, etc.).

Note that the first lever member 71 is not yet locked with the movable body 56. Therefore, only the second lever member 72 is connected to the movable body 5.
6, and thereby the tray protruding member 5
3 rotates counterclockwise in FIG. Therefore, as shown in FIG. 2), the tray carrying the disc to be played (for example, tray B12) is
The disk protrudes from the turntable 23 and moves to a position concentric with the disk support surface 23a (see FIG. 10) of the turntable 23, that is, directly below the disk support surface.

After that, the movable body 56 moves further backward (in the direction opposite to the arrow Y direction), but the second lever member 72 is released from the locked state with the movable body, and at the same time, the first lever member 71 moves against the movable body. is locked. Therefore, the first lever member 71 is attached to the moving body 5.
6, and thereby the support bodies 78 and 79 of the clamp mechanism (shown in FIG. 21, etc.) swing upward (in the direction of arrow Z). The disc is thus lifted upwards and clamped against the turntable 23.

In this way, it becomes possible to play, and the turntable 23 and carriage 24 (see FIG. 9) operate to start playing.

When the performance is finished, the disc is stored in the magazine main body 8, but the disc storage operation is performed by following the reverse process of the disc loading operation described above, so a detailed description thereof will not be given. Thereafter, the above operation is repeated according to the specified number of songs.

Effects of the Invention As detailed above, the multi-disc player according to the present invention includes a tray engaging member (11, 12) that engages with the tray to project and accommodate the tray with respect to the housing (magazine body 8). 53) and a tray engaging member driving means for driving the tray engaging member, the tray engaging member driving means is provided to be movable in a predetermined direction and is attached to a rack portion (56a) along the moving direction. a moving body (56) for driving the tray engaging member;
and a driving force applying means for applying a driving force to the movable body, including a gear (57) that meshes with the rack portion, and engages with the disc holder (magazine 5) to move the disc holder to the player housing ( 2), a locking member (67) that locks in the installed position engages with the gear when the gear is in the unlocked position or in the vicinity thereof, thereby regulating rotation of the gear.

Therefore, even if the user presses the operation button to start transporting the disc before the disc holder is completely inserted into the mounting section in the player/Using, the tray will not be ejected, or the disc will not be transported. The user notices this, inserts the disc holder to the correct position and performs the operation again, and the disc is always transported smoothly.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire multi-disc player according to the present invention, FIGS. 2(a) to 5(b) are views for explaining the magazine, and FIG. 6 is the inside of the multi-disc player. A plan view of the structure, FIGS. 7 and 8 are a view from the ■-■ arrow direction and a view from the ■-■ arrow, respectively, with respect to FIG. 6, and FIGS. 9 to 15 are partially detailed views of the internal structure, and Figure 16 is the 6th
FIGS. 17 (C) to 34 (C) are partially detailed views of the internal structure, and FIGS. 35 to 38 are views for explaining the conventional example. Description of symbols of main parts 2...Player housing 5...Magazine 8...Magazine body 10...Disk 11.12...Tray 16... Chassis 18... Moving member 18d... Arc-shaped guide groove 22... Support plate 23... Turntable 23a... ... Disk supporting surface 25 ... Spindle motor 37.38 ... Moving plate 45.62 ... Motor 53 ... Tray engaging member 56 ... ...Movable body 56a...Rack portion 57...Gear 67...Lock member 71...First lever member 72...First 2 lever members 78, 79...Support body 80...Suppressing member 84...Disk alignment protrusion 84d...Spring member

Claims (1)

[Claims] a player housing, a playing means provided in the player housing including a turntable, a disc holder that holds a disc and is inserted into a mounting portion in the player housing, and a disc holder that is attached to the player housing. a locking mechanism for locking the disc in the mounting position, and a disc ejecting and transporting mechanism for transporting the disc in the disc holder to a playing position and returning it from the playing position to the disc holder, and the disc holder includes a housing and a plurality of plates arranged within the housing in a direction substantially perpendicular to the disk supporting surface of the turntable, each capable of supporting a disk on its main surface, and protruding from and retractable along each main surface with respect to the housing; The disc ejecting and transporting mechanism has a movable member that is movable in the arrangement direction and carries the playing means, and a movable member that is movable in a predetermined direction on the movable member and supports each of the trays. a tray engaging member that engages with each of the trays to project and store the tray with respect to the housing; and a tray that moves the tray engaging member together with the moving member to a position where it engages with the tray. an engaging member moving means; and a tray engaging member driving means for driving the tray engaging member to project and retract the tray with respect to the housing, the tray engaging member driving means moving in a predetermined direction. a movable body that is movably provided and has a rack part formed along the moving direction to drive the tray engaging member; and a drive that includes a gear that meshes with the rack part and applies a driving force to the movable body. the locking mechanism has a force applying means, and the locking mechanism is provided so as to be able to reciprocate between a first position for locking the disc holder and a second position for releasing the locked state, and a part of the locking mechanism is engaged with the disc holder. a locking member that locks the disc holder when the disc holder is engaged with the disc holder; and a biasing unit that biases the locking member so that the part engages with the disc holder, and the locking member is in the second position. The multi-disc player is characterized in that the locking member engages with the gear when the gear is located near the gear, thereby restricting rotation of the gear.