JPS61230672A - Multidisk player - Google Patents

Abstract

PURPOSE:To attain a compact and thin design of a multidisk player by keeping the main surface of a pressure member in parallel to the disk holding surface of a turntable only when an oscillating member is kept at a non-clamping position. CONSTITUTION:A pressure member 66 clamps a disk 10 in cooperation with a turntable 35 when a mechanism which clamps the disk 10 set on the table 35 has a contact with the disk 10 to be played through its face opposite to the table 35. The shift mechanism of the member 66 supports rotatably the member 66 and loads and unloads it to and from the table 35. This shift mechanism contains a plate type supporter 65, a member 65 which oscillates between the clamping and non-clamping position within a surface approximately vertical to the disk holding surface together with its linear free end part attached to an end of the supporter 65, a linear lever 68 set between the member 65 and the supporter 65 and a spring 72 which energizes the lever 68 so that it is set in parallel to the member 64. Then the linear free end part of the member 65 is set in parallel to the disk holding surface at the non-clamping position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disc player, and more particularly to a multi-disc player that can store a plurality of discs and can sequentially select any of the stored discs for continuous play.

BACKGROUND ART A gicoke box is generally known as such a disc player. However, the conventional Jicoke box itself was very large, making it unsuitable for household use.

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

Among these, discs with an outer diameter of approximately 12 cm, which are generally called compact discs and which record and read signals using laser light, are easy to handle and allow the entire disc player to be made smaller. be. Recently, I have been using multiple pieces of this small DAD (for example, 5 to 6 pieces).
A multi-disc player that can be stored at all times and is ideal for use as a home jukebox that plays these discs continuously has been developed. 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, six discs can store about 120 songs with a performance time of around 3 minutes, and it is easy to cover them by your favorite genre, such as jazz or enka.

A multi-disc player basically consists of a playing means including a turntable and a pickup, a magazine that stores a plurality of discs arranged in order at a predetermined pitch, and a player that sequentially selects and plays any discs stored in the magazine. ie, a disc ejecting and transporting mechanism for transporting the disc onto the turntable. Further, a clamp mechanism is provided for clamping the disc conveyed onto the turntable.

FIG. 24 shows the main parts of the clamp mechanism that has already been developed.

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 disk supporting surface of the turntable 151, and a support shaft 153 that extends parallel to the disk supporting surface of the turntable 151. and a swinging member 154 that rotatably supports the pressing member 152. Note that the disc clamping force is applied within the pressing member 152 or
This is applied by a magnet (not shown) provided in the turntable 151 or a spring member (not shown) that biases the swinging member 154 in a direction in which the pressing member 152 approaches the turntable 151.

This clamping mechanism clamps the disc by simply swinging the swinging member 154, but in this configuration, it is necessary to avoid contact between the pressing member 152 and the disc 150 on the turntable when the clamp is released. a movement stroke of the free end of the swinging member 154;
Therefore, the movement stroke 2H of the pressing member 152 is large, which poses a problem in reducing the size of the disc player as a whole. Furthermore, in order to solve this problem, regardless of the position of the pressing member 152 with respect to the turntable 151, the main surface of the suppressing member 152 is fixed to the turntable 151.
A clamping mechanism has been developed that has a parallelism maintaining function to ensure that the clamping surface is always parallel to the disk supporting surface of the disk, but it requires an extremely large number of parts and is expensive.

Wataru Wataru 1 The present invention has been made in view of the above-mentioned points, and its purpose is to provide a multi-disc player that enables miniaturization of the player as a whole, particularly thinning, and cost reduction. It is to provide.

In the multi-disc player according to the present invention, a clamp mechanism for clamping a disc conveyed onto a turntable contacts a surface of the disc to be played opposite to the turntable, and cooperates with the turntable to play the disc. It has a suppressing member that performs a clamping action, and a pressing member moving mechanism that rotatably supports the pressing member and allows it to be attached to and detached from the turntable, and the suppressing member moving mechanism rotates the suppressing member. a plate-shaped support that freely supports the turntable; and a linear free end that is installed to be swingable between a clamped position and an unclamped position in a plane substantially perpendicular to the disk supporting surface of the turntable. a swinging member having a free end pivotally attached to one end of the support; and a swinging member having one end pivoting near the free end of the swinging member and the other end pivoting to the other end of the support. a linear lever member attached to the pivot member; and biasing means for biasing the lever member so that the lever member is parallel to the linear free end of the swing member; is characterized in that the linear free end is formed parallel to the disk supporting surface when in the unclamped position.

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

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

As shown in FIG. 1, the front panel 3 of the housing 2 is provided with a rectangular opening 3a for storing the magazine 5 within the 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 the −L direction. Also provided on the front panel 3 are a group of operation buttons 6 and a display section 7 for operating the disc player.

As shown in FIGS. 2 and 3, the magazine 5 includes a rectangular parallelepiped magazine body 8 that is flat as a whole, and six rectangular plate trays 11 each carrying a disk 10 on its main surface. Consists of. each]~ray 11, so each disk 1
0 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 (arrow Z direction and the opposite direction).

As is clear from FIG. 2, each cylinder 11 can be freely protruded and stored in the magazine body 8 through the rear end opening of the magazine body 8 and along each main surface. Further, as shown in FIG. 1, the magazine main body 8 has a tray 1.
The portion facing the first disk supporting surface, that is, the upper surface portion is left open. As is clear from FIG. 2, a guide pin 11a is formed at the front end of the right side of each tray 11 and projects in the −[ direction (arrow Z direction). The guide pin 11a is slidably fitted into a guide groove 8a formed on the right side of the magazine body 8 so as to extend in the front-rear direction (in the direction of arrow Y and the direction opposite thereto).

The guide grooves allow the guide pins 11a to move only in the direction in which the guide pins 11 to 11 are protruded and accommodated, that is, in the front-back direction. As shown in FIG. 2, inside the magazine body 8, there is a projection 11b protruding from the main surface of each tray 11 to prevent the tray from being removed from the magazine body. A flexible engagement claw 8b is provided.

As shown in FIG. 1, a flat plate-shaped horizontal chassis 13 is arranged at the lower part of the housing 2, and on the horizontal chassis, each of the above-mentioned 1-lays 11 is protruded and stored, that is, in the front-rear direction (arrows vertical chassis 14 and 15, which are a pair of support members extending in the Y direction and the opposite direction) and facing each other in the left and right direction (arrow X direction and the opposite direction);
is permanently installed. For example, as shown in FIGS. 4 and 5, a flat mechanical chassis 16 is installed between the upper ends of each of the vertical chassis 14 and 15. As shown in FIGS. As will be explained later,
A turntable, pickup means, etc. are mounted on this mechanical chassis 16.

As shown in FIGS. 4 to 6, a select plate 19 is disposed on the right side of the right vertical chassis 15 along the surface of the vertical chassis, and is movable back and forth in the front-rear direction. ing.

As is particularly clear from FIG. 10 (ω and peaks), the select plate 19 is formed into a rectangular plate shape, and a rack portion 19a is formed at the front of the upper end thereof to extend in the front-rear direction. Furthermore, six step portions 19C to 19h are formed on the right surface of the rear end of the select plate 19, which gradually descend downward (in the direction of the arrow Z) toward the front (in the direction of the arrow Y). For example, as shown in FIGS. 4 and 5, the upper front end of the vertical chassis 15 has a projecting portion 15a that projects upward.
A double gear 20 having two large and small gear parts is attached to the projecting part.

The small gear portion of the double gear 20 meshes with the rack portion 19a of the select plate 1-19. The double gear is connected to the output j axis of the t-coat 24 via a pulley 21, a belt 22, and a small pulley 23 in which a small gear 21a is integrally formed. These double gears 201 pulley 21, belt 2
2. The small pulley 23 and the motor 24 constitute a driving force applying means for applying a driving force to the Zerek/Hepley 19.

As shown in FIGS. 4 and 5, the mechanical chassis 16
A bracket portion 16 is provided at the rear right end of the bracket that protrudes upward (in the direction of arrow Z). An arm member 28 is swingably attached to the bracket portion at its rear end via a sleeve 1-26 extending rightward and a collar 27. The arm member 28 is made by bending and forming a steel plate into a substantially U-shape, and includes a first arm portion 28a that is bent in a substantially U-shape at approximately the center, and a second arm portion 2.8 that extends linearly. b. Second arm part 2
At the tip of 8b is a pin 28C that extends to the left (arrow X direction).
are provided in a protruding manner, and the pins can be engaged with six stepped portions 19C to 19h formed on the rake 1-plate 19, respectively. As shown in FIGS. 4 and 7, a pin 28 also extends to the left at the tip of the first arm portion 28a.
(L is provided protrudingly, and this pin 28d is rotatably engaged with the center portion of the right end of a rectangular plate-shaped disk holding member 30 extending in the front-rear direction and the left-right direction.This disk holding member 30 is three lever members 31 to 3.
3 to the lower surface of the mechanical chassis 16, and is moved in a direction substantially perpendicular to the disk supporting surface of the turntable 35 (
In this case, the lower surface of the disk can be brought into contact with the surface of the disk that is moved (in the vertical direction) that faces the disk supporting surface. As is clear from FIG. 7, the lever member 32 is rotatably connected to the mechanical chassis 16 at one end (front end) by a pin 32a, and a pin 32b protruding from the other end of the lever member It is slidably fitted into a long groove 308 formed at the rear end of the holding member 3o. Further, the lever member 31 that holds the left side of the disc pressing member 30 is formed approximately symmetrically with the lever member 32.
Similarly, pin 31a.

It is coupled to the mechanical chassis 16 and the disk holding member 30 via 31h. As is clear from FIG. 7, the remaining lever member 33 is arranged to intersect with the lever member 32, and is pivotally connected to the lever member 32 at the intersection by a pin 33a. Lever member 33
is a disk holding member 3o at one end (front end) thereof.
is rotatably and freely connected to the front end of the pin 33b,
A pin 33c protruding from the other end of the lever member is formed in a long groove 16C extending in the front-rear direction on the mechanical chassis 16.
It is slidably fitted. That is, the disk holding member 30 is configured to move parallel to the disk supporting surface of the turntable 35.

The disk holding member 30 described above and the three lever members 3
1 to 33, each lever member is pressed against the disc presser member 3.
0 and each pin etc. that is pivotally connected to the mechanical chassis 16? Parallelism maintaining means is configured to ensure that the surface of the disk moving in the direction perpendicular to the disk supporting surface of the turntable 35, which faces the disk supporting surface, is always parallel to the disk supporting surface. . In addition, the disk holding member 30
A projection or the like is provided on the lower surface of the disc to engage with the outer periphery of the moving disc to prevent the disc from shifting in the radial direction.

Note that, as described above, the turntable 35 is attached to the mechanical chassis 16. Further, as shown in FIG. 8, a carriage 36 carrying an optical pickup means is disposed on the mechanical chassis 16, and a carriage 36 carrying an optical pickup means is disposed on the mechanical chassis 16. , is attached to the mechanical chassis 16 so as to be movable in the front-rear direction (direction of arrow Y and the opposite direction). Although not shown, the carriage 3
Carriage drive means for driving 6 is provided.

The above-mentioned rotary turntable 35, the carriage 36 including an optical pickup means, and the carriage driving means described in - constitute a playing means for playing a disc.

As shown in Figures 5 and 6, there are two pairs on the left and right (J
A rail 40 is installed on the right side of the right vertical chassis 15 of the vertical chassis 14 and 15 (see FIG. 1), which forms a part of the vertical chassis and extends in the front-rear direction. . A hook plate 41 is slidably attached to the rail 40 as shown in FIG. It is especially clear from Figure 11(a) and Mt.
Second, the hook plate 41 is made of a bent steel plate, and a bracket portion 41a extending downward is formed at the rear of the lower end thereof. As shown in FIGS. 4 and 6 and FIG. 11
A guide shaft /I3 extending in the arrangement direction, that is, in the vertical direction, is fixed. Particularly obvious from Figure 4 is J:
In addition, the guide shaft 43 has a hook member 44 extending in the front-back direction that is slidably attached to the rear end of the guide shaft 43.
J-t has been marked. That is, the hook portion IJ' 4
A is movable in the arrangement direction of each 1-ray 11 mentioned above. As also shown in FIG.
is the engaging portion 11 formed in each of the rays 1 to 11.
d to cause the tray to protrude outside the magazine body 8.

As shown in FIG. 4, FIG. 6, and FIG.
8 is formed. On the other hand, on the right side of the front end of the disc holding member 30, there is a horizontal plate that slidably engages with the pin 44a. A protrusion 30b'/) on which M30a is formed is provided. That is, the hook member 44 is configured to move up and down as the disk holding member 30 moves up and down.

The aforementioned SELECT 1 - plate 19, the SELECT (~driving force applying means that applies driving force to the plate, including the motor 24, etc.), the shaft 26, the arm member 28, and surrounding small members related to these, A hook member moving means is configured to move the hook member 44 to a position where it engages with the 1 to ray carrying the disc to be played.
As shown in FIGS. 4 and 5, hook plays 1-
/11 has a plurality of annular positioning grooves /46 near the hook member 44 that can be fitted into U-shaped notches 11e (for example, see FIG. 2) formed on the left side of the rear end of each of the lays 11.
A shaft-shaped positioning member 46 is attached to the right side of A.

As shown in FIGS. 4 to 6 and 9, a rack member 48 is slidably attached to a rail 40 provided on the vertical chassis 15 in addition to a hook plate 41. As shown in FIGS. However, the rack member 48 is positioned so as to sandwich the hook plate 41 together with the rail 40. Figure 12 (
As is particularly clear from a) to C), a rack portion 48a is formed at the upper end of the rack member 48, extending along the entire length of the rack member. A plurality of claws 48b are provided on the left side of the rack member 48, and the rack member 48 grips the rail 40 with each of the claws. At the rear of the lower end of the shoe 9 member 48, a projecting portion /48d is formed that projects downward, and on the left side of the projecting portion, there are a plurality of blade-shaped holding portions capable of holding the hook member 44 described above. 4
80 have been set up.

More specifically, as shown in FIGS. 4 to 6,
A pin 44C extending to the right is protruded from the rear end of the hook member 44, and the pin 44C extends vertically into the elongated hole 41 formed in the bracket portion 41a of the hook plate 41.
b (See FIG. 11(a), etc.) through the blade-shaped holding part 4.
8e.

As shown in FIGS. 4 and 5, another projecting portion 15c is formed on the vertical chassis 15 at the rear of the projecting portion 15a, and the projecting portion has two large and small gear parts. A double gear 50 formed coaxially is attached. The small gear portion of the double gear 50 is connected to the rack portion 4 of the rack member 48.
It meshes with 8a. The double gear includes a pulley 51 integrally formed with a small gear 51a, a belt 52, and a small pulley 5.
3 to the output shaft of a motor 54.

These double gear 50, pulley 51, belt 52, small pulley 53, and motor 54 constitute a driving force applying mechanism that applies driving force to the rack member 48. The rack member 48 described above will be referred to as a second moving member, and the hook plate 41 will be referred to as a first moving member.

As shown in FIGS. 9(a) and (In), the rail 40, which is a part of the support member, includes a rack, which is a second moving member.
The first guides 48 are spaced apart from each other in the direction of movement of the member 48, extend in the direction of movement, and have the same depth.
0a and the second guide 40b are arranged in stages tJ. On the other hand, the rack member 48 has a first and a second guide plate 40.
A third guide groove 480 and a fourth guide groove 4 which are arranged so as to be able to face the rack members 40a and 40b and are spaced apart from each other in the moving direction of the rack member 48, extend in the moving direction, and have the same depth.
8h is formed. Further, the hook plate 1-41 sandwiched between the rail 40 and the rack member 48 is spaced apart by a distance slightly larger than the distance between the third and fourth guide grooves 48g and 48h in the moving direction of the hook plate. and the first to fourth guides are arranged as follows:
A pair of circular openings 416, 410 are formed which can face the openings 416, 480 and 48h. This pair of openings 41d.

Inside 41e, first to fourth guide grooves 40a, 40b,
48 (+ and 48h)
7 are arranged respectively.

As shown in FIG.
0 (supporting member) and the rack member 48 (second moving member): 98 is the outer diameter of the rotatable 56.57:
It is smaller than d. Also, one of the opposing surfaces of the rail 40 (supporting member) and the rack member 48 (second moving member) and the first to fourth guide grooves 408.40
b.

4BQ, 48h, the distance between the negative surface and the bottom surface of the guide groove facing the guide groove: Qb is slightly larger than the outer diameter dimension of the rotatable member 56.57: d.

The front end of the rail 40 has first and third guide grooves 4Qa.
, 48 (l) in the same direction, in this case, a regulating protrusion 40C is formed that comes into contact with the hook plate 41, which is the first moving member, and regulates the forward movement of the hook plate 41 when the respective rear ends coincide. ing.

In addition, near the rear end of the rail 40, the ends of the second and fourth guides 40b and 48h in the same direction, in this case, when the front ends of each of them coincide, contact the hook plate 41 and cause the hook plate to A regulating protrusion 40d that regulates rearward movement is provided in a protruding manner. Note that the regulating protrusion 40C is referred to as a first regulating means, whereas the regulating protrusion 40d is referred to as a second regulating means.

The first to fourth guide grooves 40a and 40b described above.

The second Rack member 48 as a moving member
When it moves rearward and reaches a position where it can hold the hook member 44, it locks the hook plate 41, which is the first moving member, and the rack member. A disk 10 is carried on a tray 11 which is made to protrude outside the magazine body 8.
A locking/releasing means is configured to release the locked state and lock the hook plate 41 to the rail 40 when the hook plate 41 reaches a position concentric with the disc supporting surface of the turntable 35 (directly below the disc supporting surface). There is.

Further, the lock/release means, a vertical chassis 15 which is a support member including the rail 40, a hook plate 41 which is a first moving member, a rack member 48 which is a second moving member, a motor 54, etc. are included in the rack member. A hook member moving means that moves the hook member 44 to a position where it engages with the ray.It is composed of a driving force applying mechanism that provides a driving force, a hook member 44, a select plate 19, a motor 24, etc., and supports a disc to be played.] This constitutes a tray projecting means for projecting the tray 11 carrying a disc to be played from the magazine body 8.

Next, we will discuss the disk moving means for moving the disk 10 supported on the t-1 no. 11 soil projected outside the magazine body 8 by the tray projecting means in a direction substantially perpendicular to the disk supporting surface of the turntable 35. explain.

For example, as shown in FIG. 8, a bracket l-168 projecting downward is provided on the lower surface of the mechanical chassis 16, and as is clear from FIG. The shields 17 1 to 61 are attached in the direction of arrow X and the direction opposite thereto. This shaft 61 includes a swing angle 62 and a clamp angle 6.
A swinging member 64 formed by combining three parts is swingably attached.

As is clear, the swinging portion 64 swings in a plane substantially perpendicular to the disk supporting surface of the turntable 35. The position of the swinging member 64 shown in FIG. 8 is called the non-clamping position, and the swinging position from this position in the opposite direction about the shaft 61 is called the clamping position of the swinging member. In addition, Figure 13 (a) and city)
14 shows details of the swing angle 62, and FIGS. 14(a) and (11) show details of the clamp angle 63. Figure 14(a).

<J especially obvious from b+: sea urchin, clamp angle 6
3 has a linear free end 63a. The swing member 64 including the clamp angle 63 is in the non-clamp position (
In the position shown in FIG. 8), the linear free end 63a is parallel to the disk supporting surface of the turntable 35.

As shown in FIGS. 4 and 8, at the free end of the swinging member 640, that is, at the tip of the clamp angle 63,
The rear end of the rectangular plate-shaped support 65 is pivotally attached via a pin 65a. A disk-shaped suppressing member 66 is rotatably attached to the upper surface of this support body 65. Suppression member 66
is in contact with the surface of the disk 10 opposite to the turntable 35 and cooperates with the turntable to perform a disk clamping action. Further, near the free end of the swinging member 64, that is, approximately at the center of the clamp angle 63, there is a
A linear lever member 68 has a longitudinal pin 69 at its rear end.
It is pivotally connected via. For details, refer to Longitudinal pin 6
9 are fixed to the lever member 68, and one is slidably fitted into a long hole 63b formed in the center of the clamp angle 63. In addition, Fig. 15(a) and (
In i) details of the lever member 68 are shown. Further, the front end of the lever member 68 is pivotally connected to the front end of the support body 65 by a longitudinal pin 71.

As is particularly clear from FIG. 14 (a), 1) and FIG. 15 (a), 1), there are small overhangs at the front end of the clamp angle 63 and at the rear end of the collar member 68, respectively. Part 63
c, 68a are formed, and a coil spring 72 is stretched between the two overhangs.

The coil spring 72 biases the linearly formed lever member 68 so that it becomes parallel to the linear free end of the clamp angle 63.

The magazine body 8 is made to protrude outside the magazine body 8 by the plate-shaped support 65 described above, the swing member 64 consisting of the swing angle 62 and the clamp angle 63, the lever member 68, and the coil spring 72 as a biasing means. Tray 11
A pressing member moving mechanism is configured to move the pressing member 66 together with the disk 10 supported thereon in a direction substantially perpendicular to the disk supporting surface of the turntable 35. Further, the pressing member moving mechanism and the pressing member 66 constitute a clamping mechanism that clamps the disc 10 conveyed to the performance position, that is, the turntable 35.

As shown in FIGS. 4 and 5, a longitudinal intermediate member 76 formed in an abbreviated shape is arranged above the rear part of the vertical chassis 15 so as to extend in the front-rear direction, and is movable back and forth in the front-rear direction. is attached to the vertical chassis 15.

The front end of the intermediate member 76 has a pin 76a extending leftward (arrow X direction), and the rear end has a pin 76a extending rightward.
b is provided protrudingly. Note that the intermediate member 76 has a pin 76a.
It is possible to swing within a predetermined range around .

A pin 76a provided at the front end of the intermediate member 76 can engage with the free end of the swing angle 62, which is a component of the swing member 64, and a pin 76a provided at the rear end of the intermediate member can engage with the free end of the swing angle 62, which is a component of the swing member 64. The pin 76b can engage with the rear end of the rack member 48 during movement. That is, the intermediate member 76 functions to interlock the swing angle 62, that is, the swing member 64, with respect to the movement of the rack member 48.

Swing angle 62 of each pin 76a and 76b described above
and the state of engagement with the rack member 48 will be explained in detail.

First, regarding the engagement between the pin 76a and the swing angle 62, as is particularly clear from FIG. 13 (ω and peak), a cam portion 62a is formed at the free end of the swing angle 62. , the pin 76a engages with this cam portion 62a. On the other hand, the rear end of the rack member 48 has a recess 48j (see especially FIGS. 12(a) to 12(C)) that engages with the pin 76b when the rack member moves forward (moves backward). , is the forward movement distance after engaging with the pin 76b. A claw-like engaging portion 48 is formed to cause the shaft 11 to move backward (swing in the secondary direction when the shaft 11 is centered on the shaft 61). As is clear from FIG. 5, the pin 76b is connected to the four parts 48
j and the claw-like engaging portion 48, and is slidably fitted into a cam hole 40f formed in the rail 40.

This cam hole 4 (H is an engagement/disengagement means for engaging and disengaging the claw-like engagement portion 48 with the throat pin 76b according to the back and forth movement of the rack member 48). be.

Here, as shown in FIG. 5, the clamp angle 6
A coil spring 78 is connected to the coil spring 78, and the swing angle 62 and the clamp angle 63 are given a piascus in the backward movement direction (clockwise around the shaft 61). . While the rack member 48 makes a linear reciprocating motion, the swing angle 62
Although there is a difference in that the rack member and the swing angle perform reciprocating motion, it can be said that the reciprocating directions of the rack member and the swing angle are substantially the same. Therefore, the pin 7 at the front end of the intermediate member 76
If the engagement between the cam portion 62a of the swing angle 62 and the swing angle 62 is a simple engagement, the bias force caused by the coil spring 78 will be applied to the rack member 718 via the swing angle 62 and the intermediate member 76 in sequence. When the rack member 48 has reached its most forward movement position (rearward movement limit position), a strong forward pressing force due to the pie spacing is always applied to the rack member 48 . The rack member 48 is often made of resin, and it is not preferable to apply such a large pressing force for a long time. Therefore, the pin 76a of the intermediate member 76 and the cam portion 62 of the swing angle 62
The engagement of a is not a simple engagement, but is made such that the pie-scar is not transmitted to the pin 76a when the rack member 48 and the intermediate member 76 are in the forward movement position N (rearward movement limit position). The cam portion 62a is formed so that when the rack member and the intermediate member move back (move forward) by a predetermined distance from the forward movement position, the pie spacing is transmitted to the intermediate member 76.

However, if the shape of the cam portion 62a is simply configured like a bow, the swing angle 62 and The intermediate member 76 cannot be moved back (clockwise rotation around the shaft 61 for the swing angle 62, and forward return operation for the intermediate member 76). However, as described above, the claw-like engaging portion 48k is formed at the rear end of the rack member 48, and the action of the claw-like engaging portion causes the rack member 48 to move backward from the forwardmost position. At this time, the intermediate member 76 is forcibly moved back by the predetermined distance. Therefore, following this, the above-mentioned piascar can cause the intermediate member 76 and the swing angle 62 to move back.

Vertical chassis 15 serving as a support member including the aforementioned rails 40
, a rack member 48 , a driving force applying mechanism consisting of a motor 54 and the like that applies a driving force to the rack member, and a pressing member 6
6, the intermediate member 76, the coil spring 78 as a pie-scar applying means, and the peripheral small members related thereto, the single tray 11 is projected out of the magazine body 8 by the aforementioned tray projecting means. −
A disk moving means is configured to move the disk 10 supported by the turntable 35 in a direction substantially perpendicular to the disk supporting surface of the turntable 35. Further, the disk moving means and the above-mentioned 1 to ray protruding means cause the magazine 5 to
A disk ejecting and conveying mechanism is configured to sequentially select arbitrary disks and convey them to the disk holding surface -L of the turntable 35. Further, the vertical chassis 15, the hook member 48, and the driving force applying mechanism are shared by the disk moving means and the tray projecting means, respectively.

Although it is clear from the above description, the above-mentioned suppressing member moving mechanism (a mechanism that includes a support body 65 that rotatably supports the suppressing member 66 and attaches and detaches the pressing member to and from the turn 7 bull 35) A driving force is applied by the movement of the rack portion IJ48 after the disk 10 pulled out from the magazine body 8 reaches a position concentric with the disk supporting surface of the turntable 35, that is, directly below the disk supporting surface.

Further, as shown in FIG. 5, for example, the swing angle 6
A protrusion 62 CIJ is provided at the free end of the disc 2, and the protrusion is adapted to engage with the protrusion 2Bf of the arm member 28 after the disc 10 is clamped to the turntable 35. ing.

For this purpose, a disk holding member 30 shown in FIG.
is detached from the disk 10. In addition, in this case, the parallelism maintaining means (described above) including the disk pressing member 30
is operated by being provided with a driving force by the rack member 48 and therefore by the disk ejecting and transporting mechanism.

As shown in FIG. 4, on the horizontal chassis 13,
A claw member 8 formed in a substantially dogleg shape is provided below the magazine 5.
1 is set to be rotatable within a predetermined range via a pin 81a ().
It is being This claw member 81 is a member for engaging the engaging claw 8d on the lower surface of the magazine main body shown in FIG. 3 to engage the entire magazine 5 with respect to the housing at the storage position IV. Further, although not shown, a biasing means is provided for biasing the claw member 81 in the direction of engagement with the engaging claw 8d. The claw member 81 also engages with the engaging claw 8d as the front end of the select plate 19, which has moved further forward from the position shown in FIG. 5, comes into contact with the end 81b of the claw member. The connection will be canceled. These select plate 19, the driving force applying means (described above) for applying the select plate, the claw member 81, urging means such as a spring that urges the claw member, and the engaging claw 8d formed on the magazine body 8. Toni J: Tsute Magazine 5
A locking mechanism is configured to lock the housing 2 at the stored position and release the locked state in response to an operation signal (magazine eject signal).

As also shown in FIG. 4, on the horizontal chassis 13 and at the rear left of the magazine 5, there is a detection switch 8 for detecting that the magazine is housed in the housing 2.
3 is fixed. This detection switch 83 is reciprocally movable within a predetermined range in the front-rear direction, and includes an actuator 83a that engages with the magazine 5, and a spring member (not shown) that serves as a pie-scar imparting means for imparting a forward-facing pie-scar to the actuator. ). After the magazine 5 is released from the locked state by the locking mechanism, the magazine 5 is caused to protrude to the outside of the housing 2 by the piers of the spring member.

As shown in FIG. 5, two detection switches 85 and 86 are provided at both front and rear ends of the vertical chassis 15. A detection switch 85 disposed at the front can engage the front end of the select plate 19 and is used to detect when the select plate has reached its forward movement limit position. Further, a detection switch 86 provided at the rear can engage with the rear end of the rack member 48, and detects that the rack member 48 has reached the rearward movement limit position, that is, that disk loading has been completed. It's no good.

As shown in FIGS. 6 and 10, a device near the select plate 19 detects the moving distance of the play 1 and moves the hook member 44 (for example, see FIG. 2) to a desired position. A photosensor 87 is arranged to stop the disk at any of the engagement positions 1 to 11 carrying the disk. On the other hand, an address plate 88 is provided on the right side of the select plate. Although not shown, a detection switch is provided for detecting that the carriage 36 (carrying the optical pickup means) shown in FIG. 8 has reached the movement limit position.

Note that the detection signals emitted from each of the detection switches 83, 85, and 86 and the photosensor 87 described above are transmitted to the housing 2.
The information is transmitted to a control unit (not shown) located at a predetermined position within the computer. The motors 24 and 54 and the turntable 35 operate at predetermined timings to be described later by operation signals sent from the control section in response to each of these detection signals.

Next, the operation of the multi-disc player configured as described above will be briefly explained along the playing procedure with reference to FIGS. 16 to 23.

First, when a disc to be played is designated by operating the operation button group 6 shown in FIG. 1, a driving voltage is supplied to the motor 24, and the motor starts rotating.

Therefore, the select plate 19 starts moving backward. If the disc to be played is, for example, the third disc from the top in magazine 5, select 1-plate 19
As shown in FIG. 16, by the action of the photosensor 87 and the address plate 88 (see FIG. 10(a)), the stepped portion 19e of the select plate is brought to a position where it engages with the pin 28c of the arm member 28. It will be stopped. As the arm member 28 swings due to the movement of the select plate 19, as shown in FIG. It is lowered to the matching position.

Then, the motor 54 begins to rotate and the rack member 48 begins to move rearward. Initial movement of rack member 48 (approximately 5~
7 mm backward movement), the holding portion 48e (see FIG. 12(a) and the peak) of the rack member 48 engages with the lower edge of the pin 44C (for example, shown in FIG. 6) of the hook member 44, and the hook The members are held in racks 361 and 4.8. By this initial movement, the rack member 48 reaches the position shown in FIG. 18(a) from the position shown in FIGS. 9(a) and (b+).

As shown in FIGS. 18(a) and (h), after the above-described initial movement of the rack member 48, the front edge of the fourth guide groove 48h formed in the rack member 48 engages with the rotatable member 57. However, the rotatable hook plate 41 is therefore locked with respect to the rack member 48. Therefore, the subsequent rack member 48
As the hook plate 41 moves rearward, the hook plate 41 is also moved rearward. As a result, the hook member 44 attached to the hook plate is driven backward, and the tray 11 carrying the disc 10 to be played is moved to the magazine main body 8.
stand out from

The tray 11 projected from the magazine body 8 and the disk 10 supported on the tray are mounted on the turntable 35.
When the disk reaches the full position directly below, i.e., concentric with the disk carrying surface of the turntable, the 19th
As shown in the figure (ω and mountain), the second guide groove 4ob formed in the rail 40 and the fourth guide groove 4ob of the rack member 48
The ends of the hook plates 8h in the same direction coincide with each other, and at the same time, the rear end of the hook plate 41 comes into contact with the regulating protrusion 40d provided on the rail 40, and the hook plate becomes locked with respect to the rail 40. Therefore, the hook member 44, and therefore the disk, stops directly below the turntable 35. Immediately after this, due to the slight rearward movement of the rack member 48, the rotatable member 57 separates from the fourth guide groove 48h of the rack member 48, as shown in FIG. 1I40b
Go inside. Therefore, the locked state between the rack member 48 and the hook plays 1 and 41 is released, and as shown in FIG. 20(a),
As shown in (b), only the rack member 48 is moved backward.

As only the rack member 48 moves backward as shown in FIG. 20 (ω and peaks), the four portions 48j formed at the rear end of the rack member are attached to the bins 76 of the intermediate member 76 (for example, shown in FIG. 5).
b, thereby driving the intermediate member rearward. Therefore, as shown in FIG. 21, the swinging member 64 (consisting of the swinging angle 62 and the clamp angle 63) is rotated around the shaft 61 by the bin 76a provided at the front end of the intermediate member 76. swung counterclockwise,
As a result, the disks 10, 1 to 11 are conveyed to the turntable 35, and are clamped.

Thereafter, as shown in FIG. 22, the swinging member 64 is further swung, and the protrusion 62c formed at the free end of the swinging angle 62, which is a component of the swinging member, is attached to the arm member 28. The arm member engages with a protrusion 28f provided on the shaft 17, and the arm member is swung by a predetermined angle counterclockwise around the shaft 26 around the waist.

As a result, as shown in FIG. 23, the disk holding member 30 moves slightly upward, and the contact state between the disk 10 and the disk holding member is released. In this way, it becomes possible to play, and the turntable 35 and carriage 36 (
(see FIG. 21, etc.) operates and the performance begins.

When the performance is finished, the disc is stored in the magazine body 8, but since the disc storage operation is performed in the reverse order of the disc loading operation described above, a detailed explanation will not be given.

Thereafter, the above operation is repeated according to the specified number of songs.

Effects of the Invention As detailed above, in the multi-disc player according to the present invention, the clamping mechanism that clamps the disc (10) conveyed onto the turntable (35) clamps the disc to be played on the turntable. a pressing portion U' (66) that comes into contact with the opposite surface and cooperates with the turntable to perform a disk clamping action; and a pressing member that rotatably supports the suppressing member and allows the suppressing member to be attached to and removed from the turntable. The pressing member moving mechanism includes a plate-shaped support (65) that rotatably supports the pressing member, and a clamp position and a non-clamping member in a plane substantially perpendicular to the disk supporting surface of the turntable. a swinging member (64) that is swingable between clamping positions and has a linear free end, the free end being pivotally connected to one end of the support;
a linear lever member (68) having one end pivotally attached near the free end of the swinging member and the other end pivoting to the other end of the support; a biasing means (coil spring 72) that biases the lever member so as to be parallel to the linear free end of the moving member;
The swinging member is formed such that the linear free end is parallel to the disk supporting surface when in the unclamped position.

That is, the main surface of the pressing member (66) is maintained parallel to the disk supporting surface of the turntable only when the swinging member is in the unclamped position. With this configuration, the movement stroke of the pressing member required to avoid contact between the disc on the turntable and the pressing member when the disc clamp is released is reduced compared to previously developed systems; This makes it easier to make the player as a whole smaller, especially thinner. In addition, since the structure maintains the parallelism of the suppressing member to the disk supporting surface of the turntable only when the disk clamp is released, the parallelism is always maintained regardless of the position of the suppressing member, unlike in already developed disc players. This makes it easier to reduce the number of parts compared to the conventional type, and it is possible to reduce costs by 1-.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the entire multi-disc player according to the present invention, FIGS. 2 and 3 are a plan view and a bottom view of the magazine, and FIGS. 4 and 5 are internal structures of the multi-disc player. Fig. 6 is a plan view and a side view of Fig. 4.
FIGS. 7 to 15 (b) are partially detailed views of the internal structure, and FIGS. 16 to 2
FIG. 3 is a diagram for explaining the operation of the multi-disc player, and FIG. 24 is a diagram showing the main parts of a clamp mechanism that has already been developed. Explanation of symbols of main parts 2...Housing 3...Front panel 3a, 41d, 41e -------Opening 5
... Magazine 6 ... Operation button group 7 ... Display section 8 ... Magazine body 8 a ... Guide groove 8 b ...・Flexible engagement claw 8d...Engagement claw 10...Disk 11...Tray 11a...Guide pins 11h, 28f, 62c... ...Protrusion 11 (1
...Engaging portion 11e...U-shaped notch 13...Horizontal chassis 14.15...Vertical chassis 15a, 15C... Overhang portion 16...Mechanical chassis 16a, 16e, 41a...Bracket portion 16c...Long groove 19...Select plate 19a', 48a... ...Rack part 19c, 19
d, 19e, 19f, 19cl. 19h...Step part 20.50...Double gear 21.51...Pulley 22.52...Belt 2.3.53...・Small pulley 24,. 54...Motor 26.61...Shaft 28...Arm member 28a...First arm portion 28b...Second. Arm parts 28c, 28d, 31a, 31b, 32a,
32b, 33a, 33b, 33c, 44a. 44c, 76a, 76b, 81a...-Pin 30...Disk holding member 30a...Horizontal groove 30b...Protrusion 3.1. ．． 32, 33.68... Lever member 3
5... Turntable 36... Carriage 40... Rail 40? ......First guide groove 40b...Second guide 40C, 40d...Regulation protrusion 40f...Cam hole 41...Hook plate 41b, 63b...Elongated hole 42...Sub bracket 42a...Screw 43...Guide shaft 44...Hook member 46... ...Positioning member 46,a...Positioning groove 48...Rack member 48b...Claw portion 48d, 63c...Protrusion portion 48e... ...Holding portion 48g...Third guide groove 48h...Fourth guide groove 48j...Concavity 48k...Claw-shaped engaging portion 56.57 ... Rotatable 62 ... Swing angle 62a ... Cam portion 63 ... Clamp angle 63a ... Straight free end 64 ... Swinging member 65 ... Plate support 66 ... Pressing member 69.71 ... Longitudinal pin 72.78 ... Coil Spring 76...
...Intermediate member, 81...Claw member 83.85.86...Detection switch 83a...
... Actuator 87 ... Photo sensor

Claims (1)

[Claims] a housing, a playing means provided in the housing including a turntable, a magazine capable of sequentially arranging and storing a plurality of discs, and a disc ejecting and transporting mechanism that sequentially selects arbitrary discs in the magazine and transports them to a playing position. and a clamping mechanism for clamping the disc conveyed to the playing position, the clamping mechanism abutting against a surface of the disc to be played opposite to the turntable and cooperating with the turntable to perform a disc clamping action. and a pressing member moving mechanism for rotatably supporting the pressing member and attaching and detaching the pressing member to the turntable, the pressing member moving mechanism rotatably supporting the pressing member. a plate-like support; a plate-shaped support; provided swingably between a clamped position and a non-clamped position in a plane substantially perpendicular to the disk supporting surface of the turntable; and a linear free end; a swinging member pivotally connected to one end of the support; and a linear lever having one end pivotally connected near the free end of the swinging member and the other end pivotally connected to the other end of the support. member, and biasing means for biasing the lever member such that the lever member is parallel to the linear free end of the rocking member, the rocking member being in the unclamped position. A multi-disc player characterized in that the linear free end is formed so as to be parallel to the disc supporting surface at a certain time.