JPS62283445A - Disk player - Google Patents

Abstract

PURPOSE:To surely attain clamping even when a player is turned upside down and to eliminate escaping noise by releasing a support body after a disk pressing member is adsorbed to the turntable, and releasing the support after the depressing member is finished clipping. CONSTITUTION:A free end of a support 78 supporting a pressing member 80 is abutted on a counter disk pressing face and a free end of a support 79 is abutted on a disk pressing face to clip the pressing member 80 vertically. Cams 82d, 82e of a clamper cam 82 driving the supports 78, 79 are engaged with support projections 78d, 79d. Thus, in reciprocating the clamper cam 82, after the pressing member 80 is adsorbed to the table 23, the supports 78, 79 are released and the supports 78 79 are released after clipping the pressing member 80. Thus, even if the player is inverted vertically, sure clamp is attained and the generation of the escaping noise is prevented.

Description

TECHNICAL FIELD The present invention relates to a disc player, and more particularly to an A-loading type disc player.

Background & Techniques In so-called auto-loading disc players, a disc transport mechanism is installed to automatically transport the disc to the playing position, that is, onto the turntable.
Clamping of the placed disc is also done automatically. A conventional example of such a clamp Rm is shown in FIG.

As shown in the figure, the clamp mechanism includes a turntable 15 that rotates while holding a disc 150 to be played.
1, and a support shaft 153 that extends parallel to the rotating surface of the turntable 151. It has a support body 154 that rotatably holds the pressing member 152.

The disk pressing force is applied by a magnet (not shown) provided within the turntable 151, and therefore the pressing member 152 is made of a magnetic material.

In such a clamp mechanism, when the entire disc player is installed upside down, the respective weights of the disc 150, the pressing member 152, and the support body 154 are applied in a direction to release the clamped state. Therefore, it has not always been easy to perform lamps reliably. Further, when the pressing member 152, which has been once attracted to the turntable 151, is removed from the turntable, there is an inconvenience that a sound is generated due to the reaction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and its object is to provide a structure in which the top and bottom are inverted,
To provide a disc player in which the disc can be reliably clamped and no sound is generated when a pressing member leaves the turntable.

In the disc player according to the present invention, the pressing member moving means for attaching and detaching the pressing members to and from the turntable are provided so as to be able to swing freely in a plane substantially perpendicular to the disc supporting surface of the turntable, and mutually It consists of a pair of supports that sandwich the pressing member by coming into contact with the disk pressing surface side and the anti-disk pressing surface side of the pressing member at their free ends, and a driving means for driving both the supporting bodies, After the member is magnetically attracted to the turntable, each of the supports is removed from the pressing member, and after the pressing member is completely clamped by each of the supports, the pressing member is removed from the turntable. It is characterized by the fact that it can be taken off.

LJL-9 Hereinafter, a disc player as an embodiment of the present invention will be described with reference to the accompanying drawings. The disc player is a multi-disc player that can store a plurality of discs and can sequentially select any of the stored discs for continuous play.

In the figure, reference numeral 1 indicates the entire multi-disc player.

As shown in FIG. 1, the front panel 3 of the brake V-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 2 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 (υ 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 a total of six rectangular plate-shaped trays Δ11 and trays 812, two types each.

Tray A11 and tray B12, thus each disk 10
are arranged and housed 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). The tray A11 and the tray 812 are rotatably provided around a rotary support shaft 8a provided at the right rear end of the magazine body 8 and extending in the arrangement direction of each tray (up and down direction). 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 that are lined up in the vertical direction (arrow Z direction and the opposite direction), and the tray A11 and the tray B12 are arranged between the partition walls. As is clear from FIG. 3(ω), small circular openings 8C are concentrically formed in each partition wall 8b near the rotation support shaft 8a. FIG. 4(a), +
b+ and FIG.

(b+ indicates the details of the tray A11 and the tray 812, but 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 frontage 8C formed in the partition wall 8b is referred to as a first opening, whereas the openings 11a and 12a provided in the tray Δ11 and the tray 812 are referred to as a second opening. Five spherical movable pieces 13a are fitted into each of the openings 8c, Ila, 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.
It is equal to the array pitch dimension of 12. Further, each of the spherical first prints 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 pressing lever 14 is provided at the front left end of the magazine body 8 and extends in the approximately front-rear direction (direction of arrow Y and the opposite direction), and one end of the pressing lever 14 is provided. In this case, the magazine body 81.4J is movably attached to the #i end via the bin 14a. However, the bottle 14a extends in the vertical direction (arrow Z direction and the opposite direction). The other end of the pressing lever 14,
That is, the rear end 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 urges the pressing lever 14 in the counterclockwise direction in FIG. 2<b+, thereby applying a tray pressing force to the pressing lever. The pressing lever 14 is formed with a protrusion 14c that 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 has the effect of swinging and locking the main body of the pressing lever 14 so as to urge each tray 11 and 12 toward the storage position in the magazine main body 8 by coming into contact with the edge 3b of the opening 3a. to do.

With the above-described pressing lever 14 and spring member 14b,
A pressing 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. Moreover, the pressing means, the frontage part 8c (first opening part) formed in each partition wall of the magazine main body 8, and the opening part 118.12 formed in each tray 11 and 12, respectively.
a (second opening), each spherical movable piece 13a, and the leaf spring 1
3b constitutes 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 +a>, +b) and FIG. The only difference is the shape and position of the hooking claw parts 11b and 12b. At the free ends of each tray 11 and 12, there is a notch 1 in which the aforementioned pressing lever 14 engages.
1c, 12c, and a pair of jig insertion holes 11d, 11e, 1
2d and 12c are formed.

In addition, flexible members 11r and 12r made of synthetic leather or the like are provided at predetermined positions on the main surfaces of adjacent trays that can face the disk supporting surfaces of each tray 11 and 12 so as to protrude from the main surfaces.
Further, each tray 11 and 12 has arc-shaped recesses 11h, lli, 12r+, along the movement trajectory of the flexible members 11r and 12f provided on the adjacent trays.
12i is provided. These recesses 11h, 11i, 1
By providing trays 2h and 12i, a total of six trays 11 and 12 are stacked on top of each other.
The overall size in the stacking direction is kept small. In other words, the magazine 5 as a whole is made thinner.

As shown in FIG. 2 (C1), an engaging claw 5a is provided approximately at the center of the right side of the magazine 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 claws 5a and 5c can engage the edge 3b of the opening 3a (see FIGS. 1 and 2(b)) 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
The magazine 5 is prevented from being attached by engaging with the edge 3b of the cover. In addition, when trying to attach the magazine 5 to the mounting part with the front and back reversed, the coil spring 5
The engaging claw 5C, which is projected outwardly by e, engages with the edge 3b of the opening 3a, thereby preventing the magazine 5 from being installed.

Note that the engaging claws 5a, 5c and the coil spring 5
By constructing the mounting prevention means using an extremely simple member such as e, the construction is simple and costs can be easily reduced.

As shown in FIG. 2(b) and FIG. 3+b), the protrusion 1 of the pressing lever 14 is swingably provided on the magazine 5.
A circular opening 14e is formed in 4c. on the other hand,
As shown in FIG. 3(b), the magazine body 8, which is the housing of the magazine 5, is provided with a projecting portion 8d extending along the lower surface of the pressing lever 14, and a columnar projection 8d is provided on the projecting portion. A portion 8C 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 14e formed in the protrusion 14C of the pressing lever 14 closes in the recess 8 when the pressing lever moves to the position shown by the solid line in FIG.
Can face r, spherical movable! A portion of A8g can fit into this opening 14e.

The above-mentioned pressing lever 14 and movable piece 8g constitute a protrusion Mυj means for restricting the protrusion of each tray 11 and 12 from the magazine body 8 when the magazine 5, which is a disk holder, is in an upside-down position. . That is, when the magazine 5 is in an upside-down state, the spherical movable piece 11118g moves due to its own weight, and a part of the movable piece fits into the opening 14e of the press lever, thereby preventing the press lever 14 from swinging. regulated, so that 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 A pair of vertical surfaces 16b and 16 extending in the direction (arrow Z direction and the opposite direction, that is, the arrangement direction of the trays)
It consists of C.

As shown in FIGS. 6 to 9, the above-described system 1/
- A movable member 18 is disposed between the rear end portions of the pair of vertical surfaces 16b and 16C of the tray 16, and is movable in the vertical direction, that is, in the arrangement direction of each tray 11.12, on each vertical surface portion. It is installed.

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 gear ridge 24 carrying an optical pickup means is also disposed on the carrier plate 22, and a gear ridge 24 carrying an optical pickup means is also disposed on the carrier plate 22.
It is attached to the support plate 22 so as to be movable along a plane including 0 (shown in the figure), in this case substantially in the left-right direction (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 sharp 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. Of course, the playing means is carried on the movable member 18, and moves together with the movable member in the up and down direction (in the direction of arrow Z and in the opposite direction).

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 U-turntable 23, is made of a positive material, and is arranged on the side of the turntable 23 opposite to the disk support, as is clear from FIG. 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 provided on the lower surface of the lever 33 so as to be movable along the magazine mounting direction, that is, the front-rear direction (arrow Y direction and the opposite direction) (NJ 4).

Details of the moving lever 33 are shown in FIG. 13 (J and crest).

As is clear from FIGS. 13 (J and (tn), the rear end of the moving lever 33 is provided with a protrusion 33a that extends downward and into which the rear end of the magazine 5 can engage. That is, when the rear end of the magazine 5 engages with the protrusion 33a, the moving lever 33 is moved in the downward direction. A coil spring (not shown) is connected to provide a bias tension toward the front (in the direction of arrow Y).

As shown in FIGS. 6 and 11, the moving lever 33
On the left side, there is a projecting portion 33 of the moving lever that moves back and forth.
A pair of detection switches 34 and 35 are arranged so that the winter actuators 34 and 33c (see FIG. 13 (J)) can engage their actuators to operate the winter actuators.

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 a magazine attachment in the player housing 2.

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

As shown in FIGS. 6 to 8, a pair of longitudinally movable plates 37 and 38 extending in the rearward 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 a guide 1M37a extending in the direction of extension of the platform moving plate.
37bi1M, 38a, 38b, and 38c are formed, and each movable plate 37, 38 is supported by movably fitting the inner groove into a bin 16d protruding from the outer surface of the vertical surface portions 16b, 16c. Chassis 1 as a component
It is attached to 6. Zunawara, moving plate 37
and 38 are capable of reciprocating in the front-rear direction.

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

The bins 18a protruding from both left and right sides of the moving member 18 protrude to the outside of the chassis 16 through the guide grooves 16e, and step-shaped cam holes 37d are formed on the inner surfaces of the moving plates 37 and 38.

38d is movably engaged with this bin 18a. The cam hole 37d formed in the movable plate 37 is formed as a whole so as to be inclined forward (in the direction of arrow Y) and downward (counter to the direction of arrow Z). Also, moving plate 3
The cam hole 38d formed at 8 is formed so as to be inclined upwardly toward the front as a whole. That is, when the moving plates 37 and 38 move relative to each other, the moving member 1
The cam holes 37d and 38d are formed so that the cam 8 can move up and down.

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 driven by a motor 45 via an 1lfirj5 speed reduction mechanism 41 including this double gear 40.

As shown in FIG. 6, a rotating lever 47 is disposed between the left and right moving plates 37 and 38, and
The chassis 1 is rotated about a virtual center 47a via a pair of bottles 16g protruding from the chassis 16.
It is attached to 6. Both ends of the rotary lever 47 are pivotally connected to left and right movable plays 37 and 38.

The motor 45, the vehicle deceleration R mechanism 41, the rotary lever 47, and related small members constitute a driving force applying means that applies a driving force to the movable plate 37, 38. There is. 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 reciprocating in the forward and backward directions is at the most backward position @ (forward movement! JJ limit position), and a part of the movable plate 37 is It operates by engaging the actuator.Six slits 50a are arranged on the right side of the front end of the movable plate 37 along the moving direction of the movable plate.
An address plate 50/fi is provided. Furthermore, an A sensor 51 (for detecting the slit 50 of the address plate) is provided behind the detection switch 49 in correspondence with the slit 50 of the address plate. 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 t7 sensor. The slit detection signal obtained from the second sensor is sent to a 7J counter (not shown) that counts the slit detection signal. Further, a control section (not shown) that makes automatic υI@ of the multi-disc player is arranged at a predetermined position in the player housing 2, and the control section controls the stop position of the movable plate 37 according to the count value of the counter. Know.

The detection switch 49 as the first sensor described above, the address plate 50, and the second t? Clean photosensor 51
, 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 the desired address position. The positioning mechanism moves the moving plate 3 by a distance corresponding to the difference between the current address and the desired address when there is a movement command when the photosensor 51 serving as the second sensor is emitting a slit detection signal.
Move 7 IJ]t! If a movement command is received while the photosensor 51 is not emitting a slit detection signal, the moving plate 37 is moved (backward movement) until a detection signal is obtained from the detection switch 49, which is the first sensor, and then the desired movement is performed. It is designed to move to the address position.

As shown in FIG. 9, the right front end of the movable member 18 engages with each tray 11, 12 (see FIG. 2(b), etc.) in the magazine 5 to move each tray. Magazine body 8
A tray protruding member 53 is provided to protrude to the outside of the tray. The tray protruding member 53 is formed in an oval shape as a whole, and is guided by a bin 53a protruding from the tray protruding member slidably engaging an arcuate guide groove 18d formed in the movable member 18. be done. That is, the tray protrusion member 53 rotates about the center of curvature of the arcuate guide groove 18d as a rotation axis, and pushes the tray 11.12 with its rotating end 53b to make it protrude from the magazine body 8. As is clear from FIG. 9, the virtual axis of rotation of the tray protruding member 53 (the center of curvature of the arcuate guide groove 18d) and the rotation support shaft 8a of each tray 11, '12 are aligned. In addition, each tray 11 and 12
12k (fourth
Figure (J.

5 (see al) is pushed to the outside of the magazine body 8 by being pushed by the tray protruding member 53.

Note that since the tray protrusion 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
The positioning R structure including the above constitutes a tray protruding member moving means for moving the tray protruding 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. .

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

As shown in FIGS. 11 and 16, the chassis 16
A movable body 56 extending in the front-rear direction is disposed on the lower right side of the body, and is attached to the chassis 16 so as to be movable in the direction of extension. Details of the moving body 56 are shown in FIG. 17 (J to C). A rack portion 56a is formed at the right front end of the movable body 56 along the direction of extension of the movable body. This rack part 56a has
Small gear portions 57a of a double gear 57 provided on the chassis 16 mesh with each other. The moving body 56 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 housing 2 of the play 17, there is a space for allowing the magazine 5 mounted in the magazine mounting part to protrude outside the magazine mounting part. A swinging 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. It is being

However, the bottle 63a extends in the vertical direction (the two directions of the arrows and the opposite direction). As is clear from the diagram, shake
A projecting portion 63b extending upward is provided on the right end of the lever 63, and the swinging lever 63 abuts the rear end of the magazine 5 at the projecting portion. Further, a gear portion 63c having the bin 63a as the center of curvature is formed at the left end portion of the swing lever 63, and the aI11 movable gear 6 of the damper 65 is formed.
5a (shown in the twelfth figure) meshes with this gear portion 63c. The damper 65 applies braking force using the viscous resistance of a viscous agent such as grease held therein. In addition,
The swing lever 63 is given an engine protruding force by a coil spring 63d.

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

Although not shown, in the vicinity of the movable body 56, one end of its rotation is attached to the locking recess 5 (+ (+t in FIG. 2) of the magazine 5.
The locking member 67 locks the magazine in the installed position with respect to the player housing 2 by engaging with the locking member 67 (see n, tc+). 13 are freely provided. Further, the locked state of the magazine 5 by the locking member is released by the forward movement of the movable body 56.

As shown in FIGS. 11 and 16, the chassis 16
A first lever member 71 and a second lever member 72, both of which extend in the front-rear direction (direction of arrow Y and the opposite direction), are arranged at the right end of the chassis 16, and the chassis 16 is reciprocated in each direction of extension. It is attached so that it can move freely. 1st
Details of the first lever member 71 and the second lever member 72 are shown in FIGS. 9 and 20. The first lever member 71 is for driving a support which is a component of a clamping machine which will be described later, and the second lever member 72 is for driving an intermediate lever 73.
(shown in FIGS. 11 and 16) through the tray protruding member 5.
3 (see Figure 9).

The intermediate lever 73 is rotatably provided on the chassis 16 via a pin 73a extending in the vertical direction, and a second lever member 72 is inserted into a cam groove 73b (shown in FIG. 11) formed at one end of the rotation. The pin 72a provided in a protruding manner 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 is fitted into a hole 53d formed in the tray protruding member 53 (illustrated in the ninth figure). 5
3 is rotated.

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

As shown in FIGS. 11, 16, and 17 (ω and (C1), 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 is formed with a first opening portion 710 that can face the first fourth portion 56c, and the first fourth portion 56c and the first opening portion 710 are formed in the first #1 mouth portion. A movable piece 74 that can be engaged is provided.These first four parts 56C1
A locking/releasing means for appropriately locking the first lever member 71 with respect to the moving body 56 according to the movement of the moving body 56 and releasing the locked state is provided by the first intermediate portion 71c, the movable piece 74, etc. It is configured. That is, depending on the moving distance of the moving body 56, the first lever member 71 moves or stops together with the moving body 56, thereby driving the clamp gate mechanism described later. The above locking/unlocking means is detailed in Japanese Patent Application No. 59-29309.

On the other hand, as shown in FIGS. 11, 16, and 17 (ω and (C)), other second and third recesses 56d and 56e are formed in the movable body 56; Well, second
A second opening portion 72d and a third opening portion 72e are formed in the lever member 72 so as to be able to face the second and third portions. Between the second and third recesses 56d and 56e and the second and third opening parts 72d and 728, there are two transferable pieces 7.
5 and 76 are interposed. These second and third recessed portions 56 (1,560, second and third opening portions 72d, 72e
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 protruding 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 moved out of the magazine body 8 by the moving VJ body 56 and a driving force applying means that includes a motor 62 and the like and applies a driving force to the moving body 56. The tray protrusion aS material drive means, the chassis 16 as a support member, the moving member 18, and the tray protrusion member 53;
The tray protruding member moving means consisting of the moving plates 37, 38 and the like constitute a tray protruding means for protruding the tray 11 or 12 carrying the disk 10 to be processed from the magazine body 8.

As shown in FIG. 9, FIG. 21 to FIG. 23, on the moving member 18, there are A pair of elongated plate-shaped supports 78 are provided, and the disc supporting surface 23a (as shown in FIG. 10) of the turntable 23 (see FIGS. ) is attached to the moving member 18 so as to swing in a plane substantially perpendicular to the plane. 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 disc-shaped pressing member 80 which contacts the surface of the disc 10 opposite to the turntable 23 and cooperates with the turntable to perform a disc clamping action. It has a mounting number. Specifically, the free end of the support 78 is connected to the pressing member 80.
The free end of the support body 79 abuts against the disk pressing surface side of the flange portion 81a formed on the main body 81 of J3.
The free end portions of both supports 78 and 79 are configured to sandwich the pressing portion 080 in the vertical direction.

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. . Figure 26 (al or C1
Details of the clamper cam 82 are shown in FIG. 27. As is particularly clear from FIG. 26(C) and FIG. 27, approximately in the center of the clamper cam 82, there are cylindrical projections 78d, 79d (
Cam portions 82d and 82e are formed to engage with the cams (shown in FIG. 21), respectively. As the clamper cam 82 reciprocates, the supports 78 and 79 are driven, and the pressing member 80 is attached to and detached from the turntable 23. The cam portions 82d and 82e are adapted to apply pressure by the supports 78, 79 to the correspondence so that the supports 78, 79 are released from the press members after the press member 80 is attracted to the turntable 23. The pressing member is configured to be detached from the turntable 23 after the clamping of the member 80 is completed.

As shown in Figures 21 and 26 (J and (C)),
A U-shaped glue missing part 82f is formed at one end of the clamper cam 82, and the first lever member 71 (FIGS. 11 and 16)
19 (illustrated in ω and peaks), a protrusion 71e formed to extend downward is smoothly engaged. That is, by reciprocating the first lever member 71, the clamper cam 82 is moved, thereby causing the supports 78 and 79 to swing 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 part 44.
71 and the movable body 56 as appropriate according to the movement of the movable body.
A driving means for driving each of the supports 78 and seven is constituted by a driving force applying means that includes a motor 62 and the like and applies a driving force to the movable body 56.

Further, the driving means and the supports 78 and 79 constitute a pressing member moving means for attaching and detaching the pressing member 80 to and from the turntable 23. Further, the pressing member moving means and the pressing member 80 constitute a clamp mechanism for clamping the disk 10. As shown in FIGS. 22 and 5g23, a spring member 78f biases each of the supports 78 in a direction in which the pressing member 80 approaches the disk supporting surface 23a of the turntable 23 (see FIG. 10). , 7] are provided.

FIG. 10 shows the view taken along the arrow X-X in FIG. A tapered portion 78g is formed to position the pressing member relative to the turntable 23, in this case, in a plane parallel to the disk supporting surface 23a of the turntable 23. Thereby, the pressing member 80 is centered with respect to the turntable 23 with high precision.

Here, the turntable 23 and the pressure 81S +J 80
The shape of is explained in detail.

As is particularly clear from FIG. 23, the pressing member 80 includes:
A disk centering protrusion 84 is provided which 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 2.3C into which the disk alignment protrusion of the disk lamp mechanism is fitted. With this configuration, the disk supporting surface 23a of the turntable 23
This prevents the disc 10 from shifting in a direction parallel to the .

Figure 28 shows the ■X■-■X■ arrow view regarding Figure 10, and Figure 29 shows IXIX regarding this Figure 28.
-IrXIX cross section is shown, and as is clear from the figures, the disk alignment protrusion 84, which is a component of the pressing member 80, is movable within a predetermined range along the central axis of rotation of the pressing member. It becomes. Specifically, the disk alignment protrusion 84 includes three cam surfaces 84a formed on the disk alignment protrusion, and three spherical guides provided on the main body 81 of the pressing member 80 so as to be in sliding contact with the cam surfaces. It is attached to the main body 81 via a cam means consisting of a member 85, and rotates about the rotation center axis when the disk alignment protrusion moves along the rotation center axis of the pressing member. It has become. Further, as shown in FIG. 28, a spring member is used as a biasing means for rotationally biasing the disk alignment protrusion 84 so that the disk alignment protrusion 84 projects upward (in the direction of arrow Z) from the main body 81. 84d is provided.

- Note that the three spherical guide members 85 described above are the pressing members 8
The guide members are arranged at equal intervals along the rotation direction of the main body 81, and as shown in FIGS. , are adapted to come into contact with the surface of the disk 10. Therefore, the disk 10 is supported at three points by the pressing portion U80, and the disk can be clamped with high precision.

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 member drive cam 87 formed in a substantially arcuate shape is provided on the moving part 4418, and the center of the entire curvature of the moving part 4418 is It is attached to a moving member 18 for centering movement. FIG. 30(a) to C) shows this disk holding member drive cam 8.
7 details are shown. As shown in FIGS. 9, 30 <a> and (C), an opening 87c is formed at one end of the disk pressing member driving cam 87, and an opening 87c is formed at the end of the aforementioned clamper cam 82. A bottle 82b (see FIGS. 26(a) and 26(b)) protruding toward the opening fits smoothly into the opening. Rinawara, Clampakam 82
The disk holding member layer UJ cam 87 moves as the disk moves. This disc holding member driving cam 87 is moved to the disc holding surface of the turntable 23 by the aforementioned disc moving means (clamp mechanism).
3a (see FIG. 10), the free end 88a abuts against the surface facing the disk supporting surface of the disk that is moved in the direction perpendicular to the direction (vertical direction) (see FIG. 10). A disk holding member 88 (FIG. 9, FIG. 30 (d>, (e) I,
: shown). In other words,
When the disk holding member drive cam 87 moves along its curvature, the disk holding member 88 swings up and down about the support bin 88b.

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 shift switch 16 along with 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 aforementioned detection switches 34.35, 49.89
．． The detection signals emitted from 90 and the photosensor 51 are transmitted to the control section (not shown) described above, and the motors 45, 62 and turn are controlled by operation signals sent from the control section in response to these detection signals. The table 23 operates at a predetermined timing, which will be described later.

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

First, when a disc to be played is designated by operating the operation button group 6 shown in FIG. It starts moving forward (in the direction of arrow Y) or backward (in the direction of arrow Y). Therefore, the stepped cam grooves 37d and 3 formed in the moving plates 37 and 38
8d and the guide groove 16e formed in the chassis 16, the bin 18a that is movably fitted into the multiple grooves is moved up and down, and the movable member 1 from which the bin 18a is protruded is moved up and down.
8 moves up and down. Accordingly, the tray protruding member 53 (illustrated in FIG. 9) provided on the moving member 18 reaches a position of engagement with the tray 11 or 12 carrying the disc to be played.

In this way, when the tray protrusion member 53 is positioned at the engagement position with the tray carrying the disc to be played,
Then, the motor 62 (see FIG. 11, etc.) begins to rotate, and the moving body 56 is driven backward (in the opposite direction of the arrow Y).

At this time, the movable body 56 is in a locked state with the second lever part 72 by locking/unlocking 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 part 72 is connected to the moving body 5.
6, thereby moving the tray protrusion 5 backwards.
3 rotates in one direction from the opposite side in FIG. Therefore,
As shown in FIG. 2(b), a tray carrying a disc to be played (for example, tray B12) protrudes from the magazine body 8, and the disc is placed against the disc supporting surface 23a of the turntable 23 (see FIG. 10). to a concentric position, ie directly below the disk carrying surface.

Due to this attack, 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 toward the movable body. locked against. Therefore, the first lever member 71 moves rearward together with the movable body 56, and as a result, the supports 78, 79 of the clamp mechanism (shown in FIG. 21, etc.) move upward (in the direction of arrow Z).
direction). 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.

11 Hiimaru i As detailed above, in the disc play r according to the present invention, the pressing member (8) clamps the disc (10).
0) to and from the turntable (23), the pressing member moving means for attaching and detaching the
The pressing member is provided so as to be swingable in a plane substantially perpendicular to the disk supporting surface (23a) of the pressing member, and its free ends abut against the disk pressing surface side and the anti-disk pressing surface side of the pressing member. A pair of supports holding the 78.7
9) and a driving means for driving both supports, and after the pressing member is attracted to the turntable by magnetic force, each of the supporting bodies releases the clamping of the pressing part I and moves away from the pressing member. After the pressing member is completely clamped by each of the supports, the pressing member is removed from the turntable.

Therefore, even if the entire disc player is upside down, the disc is securely clamped, and even when the pressing member leaves the turntable, it leaves #I while being held by both of the support members, so there is no sound caused by recoil. It does not occur.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire multi-disc player according to the present invention, FIG. The plan view, FIGS. 7 and 8 are the ■-■ arrow view and ■-■ arrow view, FIG. 9, and FIG.
Figure 0 is a partially detailed view of the internal structure, Figures 11 and 12.
The figures are a plan view and a front view of the internal structure mentioned above, and Fig. 13 (
Figures ω to @15 are partial detailed views of the internal structure, Figure 16 is a sectional view of Figure 11, and Figure 17 (Figures 2 to 30 are detailed views of the internal structure). Partially detailed drawings and FIG. 31 are diagrams for explaining the main parts of the disc player that has already been developed. Explanation of the symbols of the main parts 2...Player housing 5...Magazine 8... Magazine body 10... Disk 11.12... Tray 16... Chassis 18... Moving member 22...・Support plate. 23...Turntable 23a...Disc support surface 23b...Magnet 25...-Spindle motor 45.62...Motor 53...Tray protruding member 56...Movable body 71...First lever member 72...Second lever member 78.79...・Support body 80...Press member 84...Disk alignment portion 84d...Spring member

Claims (2)

[Claims] (1) Includes a turntable and a clamp mechanism that clamps a disc placed on the turntable,
The clamping mechanism is a disc player having a pressing member that cooperates with the turntable and performs a clamping action by the magnetic force of a magnet, and a pressing member moving means for attaching and detaching the pressing member to and from the turntable. Each of the pressing member moving means is swingably provided in a plane substantially perpendicular to the disk supporting surface of the turntable, and the free end portions of the pressing member move the disk pressing surface side and the opposite disk pressing surface of the pressing member. It consists of a pair of supports that come into contact with the surface side and hold the pressing member, and a driving means that drives the pair of supports, and after the pressing member is attracted to the turntable, each of the supports is A disc player characterized in that the pressing member is detached from the turntable after the pressing member is completely clamped by each of the supports. (2) A disk alignment protrusion that fits into the center hole of the disk is provided on the disk pressing surface side of the pressing member, and the turntable is provided with a recess into which the disk alignment protrusion fits. Claim 1 characterized in that
Disc player as described in section.