JPH0352146B2 - - Google Patents

Description

[Detailed description of the invention]

TECHNICAL FIELD The present invention relates to an operation switching mechanism for selectively moving the three members relative to each other in a device having three members that can move relative to each other in the same direction. BACKGROUND ART In an apparatus including first, second, and third members arranged parallel to each other and relatively movable in the parallel directions, the second member is moved relative to the first and third members, The second and third members may then be moved relative to the first member, and then the second member may be moved relative to the first and third members in succession. Conventionally,
The operation switching mechanism for sequentially switching each relative movement has a large number of parts, so the configuration is complicated and the cost is high.Furthermore, the operation timing of each component of the operation switching mechanism is delicate and each It was necessary to increase the manufacturing precision of the component parts, and assembly was difficult. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and its object is to provide an operation switching mechanism that is simple in structure, therefore low in cost, and easy to assemble. The operation switching mechanism according to the present invention includes a first member and a second member that are arranged substantially parallel to each other and are movable relatively in parallel directions, and at least a portion of which is provided between the first and second members. and a third member movable in the direction of movement of the first and second members, wherein the second member moves relative to the first and third members and the second and third members move relative to the first member. movement and said first and third
An operation switching mechanism that continuously switches the movement of the second member relative to the member, the first and second members being provided on the first member at a distance from each other in the moving direction.
a guide recess; third and fourth guide recesses provided in the second member so as to be able to face the first and second guide recesses and spaced apart from each other in the movement direction and each extending in the movement direction; a pair of openings that are provided in the three members at a distance slightly larger than the distance between the third and fourth guide recesses in the movement direction and that can face the first to fourth guide recesses; a movable piece disposed within the pair of openings and capable of engaging with the first to fourth guide recesses; and a movable piece of the third member when the first and third guide recesses face the openings. a first regulating means for regulating the movement; and a second regulating means for regulating the movement of the third member when the second and fourth guide recesses face the opening; The distance between the opposing surfaces of the first and second members within the movement range of the member is smaller than the outer diameter dimension of the movable piece, and the distance between any one of the opposing surfaces of the first and second members and the first to The present invention is characterized in that the distance between one surface of the four guide recesses and the bottom surface of the opposing guide recess is slightly larger than the outer diameter dimension of the movable piece. Embodiments Hereinafter, a disk player equipped with an operation switching mechanism 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 performance. In addition, the operation switching mechanism according to the present invention is particularly advantageous in FIGS. 6, 9a, b, 11a, 12a,
b, Figure 18 a, b, Figure 19 a, b, Figure 20 a, b, Figure 24 a to d, and Figure 25 a.
and b. However, FIGS. 24a to 24d are conceptual diagrams showing the structure of the operation switching mechanism according to the present invention conceptually and in terms of wirework. This conceptual diagram of the mechanism is drawn based on the following concept abbreviation drawing method.

[Appended table]

【table】

[Table] 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 accommodating 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 upward. 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 has a flat rectangular parallelepiped magazine body 8 as a whole.
and, for example, six rectangular plate trays 11 each carrying a disk 10 on its main surface. Each tray 11, and therefore each disk 10, is 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 tray 11 can be protruded from the magazine body 8 through the rear end opening and along each main surface to be housed. Also, as shown in Figure 1,
The magazine main body 8 has an open portion facing the disk supporting surface of the tray 11, that is, an upper surface portion. 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 upward (in the direction of arrow Z). 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 protruding and retracting direction of each tray 11, that is, in the front-rear direction. As shown in FIG. 2, inside the magazine body 8, there is a mechanism that prevents each tray from coming off from the magazine body by engaging with a protrusion 11b protruding from the main surface of each tray 11. A flexible engagement claw 8b is provided. As shown in FIG. 1, a flat horizontal chassis 13 is arranged at the lower part of the housing 2, and on the horizontal chassis, each of the trays 11 is disposed in the protruding storage direction, that is, in the front-rear direction (in the direction of the arrow Y). A pair of vertical chassis 14 and 15 are fixedly provided, which are a pair of supporting members extending in the left-right direction (the direction of the arrow X and the direction opposite thereto) and facing each other in the left-right direction (the direction of the arrow X and the direction opposite thereto). 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 will be described 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 Figures 10a and b,
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 of the select plate 19 so as to extend in the front-rear direction. Furthermore, six stepped portions 19c to 19h are formed on the right side of the rear end of the select plate 19, which gradually descend toward the front (in the direction of arrow Y) and downward (in the direction of arrow Z). For example, as shown in FIGS. 4 and 5, the upper front end of the vertical chassis 15 has an upwardly projecting overhang 1
5a is formed, and 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 19. The double gear is connected to the output shaft of a motor 24 via a pulley 21, a belt 22, and a small pulley 23 in which a small gear 21a is integrally formed. These double gear 20, pulley 21, belt 22, small pulley 23, and motor 24 constitute a driving force applying means for applying driving force to the select plate 19. As shown in FIGS. 4 and 5, a bracket portion 16a that projects upward (in the direction of arrow Z) is provided at the rear right end of the mechanical chassis 16. An arm member 28 is swingably attached to the bracket at its rear end via a shaft 26 and a collar 27 extending to the right. 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 whose substantially central portion is bent in a dogleg shape, and a second arm portion 28b which extends linearly. have. Second arm portion 28b
At the tip of the pin 28 extends to the left (arrow X direction)
c is provided protrudingly, and the pin is connected to the six stepped portions 19c to 19 formed on the select plate 19.
h and can be engaged with each other. Figures 4 and 7
As shown in the figure, a pin 28d extending to the left is also protruded from the tip of the first arm portion 28a.
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 attached to the lower surface of the mechanical chassis 16 via three lever members 31 to 33, and is moved approximately perpendicularly to the disk supporting surface of the turntable 35 by a disk moving means to be described later. The lower surface of the disk can be brought into contact with the surface of the disk that is moved in the direction (up and down in this case) 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 30a formed at the rear end of the disk holding member 30. Further, the lever member 31 that suspends the left side of the disk holding member 30 is formed approximately symmetrically with the lever member 32, and similarly to the lever member 32, the lever member 31 supports the left side of the disk holding member 30.
It is connected to the mechanical chassis 16 and the disk holding member 30 via a and 31b. 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. The lever member 33 is rotatably connected at one end (front end) to the front end of the disk holding member 30 by a pin 33b.
A pin 33c protruding from the other end of the lever member is slidably fitted into a long groove 16c formed in the mechanical chassis 16 extending in the front-rear direction. That is, the disc pressing member 30 is attached to the turntable 35.
It is arranged to move parallel to the disk carrying surface of the disk. The turntable 35 is constructed by the above-described disk holding member 30, the three lever members 31 to 33, and each pin for pivotally connecting each lever member to the disk holding member 30 and the mechanical chassis 16.
Parallelism maintaining means is configured to ensure that a surface of the disk moving in a direction perpendicular to the disk carrying surface of the disk, which faces the disk carrying surface, is always parallel to the disk carrying surface. Further, the lower surface of the disk holding member 30 is provided with a protrusion or the like that engages with the outer periphery of the moving disk to prevent the disk from shifting in the radial direction. Note that, as described above, the turntable 35 is attached to the mechanical chassis 16. Also,
As shown in FIG. 8, a carriage 36 carrying an optical pickup means is disposed on the mechanical chassis 16, and the turntable 3
In this case, it is attached to the mechanical chassis 16 so as to be movable in the front-rear direction (in the direction of arrow Y and the opposite direction thereof) along a plane including the disk supporting surface of No. 5. Further, although not shown, a carriage drive means for driving the carriage 36 is provided. The above turntable 35, the carriage 36 including an optical pickup means, and the carriage driving means constitute a playing means for performing a disc performance. As shown in FIGS. 5 and 6, of the pair of vertical chassis 14 and 15 provided on the left and right (see FIG. 1), the right side of the right vertical chassis 15 is provided with a part of the vertical chassis. A rail 40 extending in the front-rear direction is also provided. As shown in FIGS. 9a and 9b, a hook plate 41 is slidably attached to the rail 40. As is particularly clear from FIGS. 11a and 11b, the hook plate 41 is made of a bent steel plate, and a bracket portion 41a extending downward is formed at the rear of its lower end. As shown in FIGS. 4, 6, and 11b, a sub-bracket 42 is attached to this bracket portion 41a with screws 42a, etc., and the above-mentioned trays 11 are attached to the sub-bracket 42. A guide shaft 43 extending in the arrangement direction, that is, in the vertical direction, is fixed. As is particularly clear from FIG. 4, a hook member 44 extending in the front-rear direction is slidably attached to the guide shaft 43 at its rear end. That is, the hook member 44 is movable in the direction in which the trays 11 are arranged. As also shown in FIG.
The trays are engaged with the engaging portions 11d formed on each of the trays 1 and 1 to cause the trays to protrude outside the magazine body 8. As shown in FIGS. 4, 6 and 7,
A pin 44a is formed on the left side of the rear end of the hook member 44 and projects leftward. On the other hand, on the right side of the front end of the disk holding member 30, a protrusion 3 is formed with a horizontal groove 30a that slidably fits into the pin 44a.
0b 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 plate 19 and motor 24
A drive force applying means for applying a driving force to the select plate, including the shaft 26, an arm member 28, and peripheral small members related thereto, is engaged with the tray carrying the disc to be played. A hook member moving means is configured to move the hook member 44 to the position where the hook member 44 is moved. As shown in FIGS. 4 and 5, the hook plate 41 has a U-shaped notch 11e (for example, in FIG. A shaft-like positioning member 46 having a plurality of annular positioning grooves 46a that can be fitted into the shaft-like positioning member 46 is attached. As shown in FIGS. 4 to 6 and 9, in addition to a hook plate 41, a rack member 48 is slidably attached to a rail 40 provided on the vertical chassis 15. However, the rack member 48 is positioned so as to sandwich the hook plate 41 together with the rail 40. As is particularly clear from FIGS. 12a-12c, a rack portion 48a is formed at the upper end of the rack member 48 over its entire length. A plurality of claws 48b are provided on the left side of the rack member 48.
The rail 40 is gripped by each claw portion. Further, a downwardly protruding portion 48d is formed at the rear of the lower end of the rack member 48, and a plurality of blade-shaped holding portions 48e capable of holding the aforementioned hook member 44 are provided on the left side of the projecting portion. It is being More specifically, as shown in FIGS. 4 to 6, a pin 44c extending to the right is provided at the rear end of the hook member 44, and the pin 44c is connected to the bracket portion 41a of the hook plate 41. It is supported on the blade-like holding portion 48e through a long hole 41b (see FIG. 11a, etc.) that is formed to extend vertically. 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 this projecting portion has two large and small projecting parts.
Double gear 50 formed by coaxially forming two gear parts
is installed. The small gear portion of the double gear 50 meshes with the rack portion 48a of the rack member 48. The double gear includes a pulley 51 with a small gear 51a integrally formed, a belt 52, and a small pulley 53.
It is connected to the output shaft of the motor 54 via.
These double gears 50, pulleys 51, belts 5
2. The small pulley 53 and the motor 54 constitute a driving force applying mechanism that applies a driving force to the rack member 48. Note that the above-mentioned rack member 48
will be referred to as a second moving member, and on the other hand, the hook plate 41 will be referred to as a first moving member. As shown in FIGS. 9a and 9b, the rails 40 forming a part of the support member are provided at a distance from each other in the direction of movement of the rack member 48, which is the second moving member, and each extend in the direction of movement. A first guide recess, or first guide groove 40a, and a second guide recess, or second guide groove 40b, each having the same depth are provided. On the other hand, the rack member 48 has grooves arranged so as to be able to face the first and second guide grooves 40a and 40b and spaced apart from each other in the direction of movement of the rack member 48, each extending in the direction of movement, and each having a depth. A third guide recess, that is, a third guide groove 48g, and a fourth guide recess, that is, a fourth guide groove 48h, are formed with the same values. In addition, the rail 40 and the rack member 48
The hook plate 41, which is held by to fourth guide grooves 40a, 40b, 48g and 48
A pair of circular openings 41d and 41e that can face h.
is formed. This pair of openings 41d, 4
Inside 1e, there are first to fourth guide grooves 40a, 40.
Spherical movable pieces 56 and 57 that can be engaged with parts b, 48g and 48h are arranged, respectively. As shown in FIG. 9a, at least the rail 40 (supporting member) and the rack member 48 within the movement range of the hook plate 41, which is the first moving member.
The distance between opposing surfaces of the second moving member (la) is smaller than the outer diameter dimension of the movable pieces 56 and 57: 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 40a, 40b,
Of 48g and 48h, the distance lb between the one surface and the opposing bottom surface of the guide groove is slightly larger than the outer diameter dimension d of the movable pieces 56 and 57. At the front end of the rail 40, first and third guide grooves 40a and 48g are formed in the opening 4 of the hook plate 41.
1d, in this case, the ends of the first and third guide grooves in the same direction, in this case, when the respective rear ends coincide, they abut against the hook plate 41, which is the first moving member. A regulating protrusion 40c is formed to regulate the forward movement of the hook plate. Further, near the rear end of the rail 40, second and fourth
While the guide grooves 40b, 48h face the opening 41e of the hook plate 41, when the ends of the second and fourth guide grooves in the same direction (in this case, the respective front ends) coincide, the hook is opened. A regulating protrusion 40d that comes into contact with the plate 41 and regulates the rearward movement of the hook plate is provided in a protruding manner. Note that the regulating protrusion 40c will be referred to as a first regulating means, whereas the regulating protrusion 40d will be referred to as a second regulating means. The above-mentioned first to fourth guide grooves 40a, 40
b, 48g, 48h, a pair of openings 41d and 41e formed in the hook plate 41, movable pieces 56 and 57 disposed within the openings, and each of the regulating protrusions 40c and 40d. When the second moving member, the rack member 48, moves rearward and reaches a position where it can hold the hook member 44, it locks the first moving member, the hook plate 41, and the rack member, and in this locked state, the hook plate 41 and the hook are locked. Magazine body 8 via member 44
When the disk 10 supported on the tray 11 projected outward reaches a position concentric with the disk supporting surface of the turntable 35 (directly below the disk supporting surface), the locked state is released and the hook plate 41 is moved to the rail. Lock against 40
A release means is configured. Further, the locking/releasing means, a vertical chassis 15 which is a supporting 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 driving force applying mechanism that applies driving force, a hook member 44, a select plate 19, and a motor 24
The tray 11 carrying the disc to be played is moved to the magazine body 8 by a hook member moving means for moving the hook member 44 to a position where it engages with the tray carrying the disc to be played.
A tray projecting means is configured to project from the tray. Next, a description will be given of a disk moving means for moving the disk 10 supported on the tray 11 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. do. For example, as shown in FIG. 8, a bracket 16e projecting downward is provided on the lower surface of the mechanical chassis 16.
As is clear from Figure 4,
A shaft 61 extending in the left-right direction (in the direction of arrow X and the opposite direction) is attached to the bracket portion. A swing member 64 formed by combining a swing angle 62 and a clamp angle 63 is swingably attached to the shaft 61.
As is clear, the swinging member 64 swings in a plane substantially perpendicular to the disk carrying surface of the turntable 35. The position of the swinging member 64 shown in FIG. 8 is referred to as a non-clamping position, and a position where the swinging member 64 is swung a predetermined amount counterclockwise about the shaft 61 from this position is referred to as a clamping position of the swinging member. In addition, the swing angle 6 is shown in Fig. 13a and b.
2 and details of the clamping angle 63 are shown in FIGS. 14a and 14b. As is particularly clear from FIGS. 14a and 14b, the clamping angle 63 has a straight free end 63a.
When the swing member 64 including the clamp angle 63 is in the unclamped position (the position shown in FIG. 8), the linear free end 63a is parallel to the disk supporting surface of the turntable 35. is being done. As shown in FIGS. 4 and 8, the free end of the swinging member 64, that is, the clamp angle 63
The rear end of a rectangular plate-shaped support 65 is pivotally attached to the tip of the support body 65 via a pin 65a. This support 6
A disc-shaped pressing member 66 is rotatably attached to the upper surface of the housing 5 . The pressing member 66 comes into 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, a linear lever member 68 is pivotally attached at its rear end via a longitudinal pin 69. Specifically, the longitudinal pin 69 is fixed to the lever member 68, and is slidably fitted into a long hole 63b formed in the center of the clamp angle 63. The details of the lever member 68 are shown in FIGS. 15a and 15b. Further, the front end of the lever member 68 is pivotally attached to the front end of the support body 65 by a longitudinal pin 71. As is particularly clear from FIGS. 14a and 14b and FIGS. 15a and 15b, small projecting portions 63c and 68a are formed at the front end of the clamp angle 63 and the rear end of the lever member 68, respectively. A coil spring 72 is stretched between the two overhanging portions.
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 above-mentioned plate-like support 65 and the swing angle 62
and a swinging member 64 consisting of a clamp angle 63
By means of the lever member 68 and the coil spring 72 as a biasing means, the pressing member 66 is moved along with the disk 10 supported on the tray 11 projected outside the magazine main body 8 so that the turntable 35 supports the disk. A pressing member moving mechanism is configured to move in a direction substantially perpendicular to the plane. Further, the pressing member moving mechanism and the pressing member 66 constitute a clamping mechanism that clamps the disc 10 transported to the performance position, that is, the turntable 35. As shown in FIGS. 4 and 5, a longitudinal intermediate member 76 formed in a substantially L-shape is disposed above the rear part of the vertical chassis 15 so as to extend in the front-rear direction.
Moreover, it is attached to the vertical chassis 15 so as to be able to reciprocate in the front-rear direction. A pin 76a extending leftward (in the direction of arrow X) is provided at the front end of the intermediate member 76.
However, a pin 76b extending to the right is provided at the rear end. Note that the intermediate member 76 is a pin 76
It is capable of swinging within a predetermined range around point a. A pin 76 provided at the front end of the intermediate member 76
a can be engaged with the free end of the swing angle 62 which is a component of the swing member 64, and a pin 76b protruding from the rear end of the intermediate member can be engaged with the rear end of the rack member 48 during movement. can be engaged with the end. 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. The state of engagement of each of the pins 76a and 76b with the swing angle 62 and the rack member 48 will be described in detail. First, regarding the engagement between the pin 76a and the swing angle 62, as is particularly clear from FIGS. 13a and 13b, a cam portion 62a is formed at the free end of the swing angle 62, and the 76a engages with this cam portion 62a. On the other hand, the rack member 48
At the rear end, there is a recess 48j that engages with the pin 76b when the rack member moves forward (moves backward).
(see especially Figures 12a-c) and pin 76b.
When the rack member moves back (moves forward) by the forward movement distance after engaging with the pin 76b, the swing angle 62 engages with the pin 76b and as the rack member moves back, the swing angle 62
A claw-like engaging portion 48k is formed to cause the shaft 61 to move backward (swing clockwise around the shaft 61). As is clear from Fig. 5, pin 76
b is capable of engaging with the above-described recess 48j and claw-like engaging portion 48k, and is slidably fitted into a cam hole 40f formed in the rail 40.
This cam hole 40f is connected to the claw-like engaging portion 48k and the pin 7.
It acts as an engagement/disengagement means that engages and disengages with the rack member 6b in accordance with the reciprocating movement (back and forth movement) of the rack member 48. As shown in FIG. 5, a coil spring 78 is connected to the clamp angle 63, and the swing angle 62 is moved in the backward direction (with the shaft 61 as the center) by the coil spring. A bias force is applied in the clockwise direction. Although there is a difference in that the rack member 48 makes a linear reciprocating motion, and the swinging angle 62 makes a reciprocating swinging motion, the reciprocating directions of the rack member and the swinging angle are substantially the same. I can say that. Therefore, the pin 76a at the front end of the intermediate member 76 and the cam portion 62 of the swing angle 62
If the engagement a is a simple engagement, the bias force by the coil spring 78 will cause the swing angle 6
2 and the intermediate member 76 in order.
As a result, a strong forward pressing force due to the bias force is always applied to the rack member 48 that has reached the forward movement position (rearward movement limit position). The rack member 48 is often made of resin, and it is not preferable that such a large pressing force be applied over a long period of time. Therefore, the engagement between the pin 76a of the intermediate member 76 and the cam portion 62a of the swing angle 62 is not a simple engagement. so that the bias force is not transmitted to the pin 76a, and
The cam portion 62a is formed so that the bias force is transmitted to the intermediate member 76 when the rack member and the intermediate member move back (move forward) by a predetermined distance from the most forward position. However, if the shape of the cam hole 62a is simply configured in this way, when the rack member 48 moves backward (forwardly) from the forward position, the bias force of the coil spring 78 will cause the swing angle 62 and the middle The member 76 is moved back (swing angle 62
For example, the intermediate member 76 cannot be rotated clockwise about the shaft 61, and the intermediate member 76 cannot be returned to the front. However, as described above, a 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 moves the rack member 48 from the forwardmost position. When moving back, the intermediate member 76 is forced to move back by the predetermined distance. Then,
Subsequently, the biasing force can cause intermediate member 76 and swing angle 62 to move back. A vertical chassis 15 which is a support member including the aforementioned rail 40, a rack member 48, a driving force applying mechanism that applies a driving force to the rack member, which includes a motor 54, etc., and a clamp mechanism that includes a pressing member 66.
The intermediate member 76, the coil spring 78 as a bias force applying means, and the peripheral small members related thereto support the tray 11 projected outside the magazine body 8 by the tray projecting means described above. A disk moving means is configured to move the loaded disk 10 in a direction substantially perpendicular to the disk supporting surface of the turntable 35. Further, by the disk moving means and the tray protruding means,
A disk ejecting and conveying mechanism is configured to sequentially select arbitrary disks in the magazine 5 and convey them onto the disk supporting surface of the turntable 35. Further, the vertical chassis 15, the rack 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 pressing member moving mechanism (a mechanism that includes a support body 65 that rotatably supports the pressing member 66 and makes the pressing member detachable from the turntable 35)
is the disk 1 pulled out from the magazine body 8.
The driving force is applied by the movement of the rack member 48 after the rack member 48 reaches a position concentric with the disk carrying surface of the turntable 35, that is, directly below the disk carrying surface. Further, as shown in FIG. 5, for example, a protrusion 62c is provided at the free end of the swing angle 62, and the protrusion is attached to the arm member 62c after the disc 10 is clamped to the turntable 35.
It is adapted to engage with the protrusion 28f of No.8.
As a result, the disk holding member 30 shown in FIG. 7 is released from the disk 10. In addition, in this way, the parallelism maintaining means (described above) including the disk pressing member 30 is connected to the rack member 48, and therefore,
It operates by being provided with driving force by the disk ejecting and transporting mechanism. As shown in FIG. 4, on the horizontal chassis 13 and below the magazine 5, a claw member 81 formed in a substantially dogleg shape is provided rotatably within a predetermined range via a pin 81a. It is being This claw member 81
is the engaging claw 8 on the lower surface of the magazine body shown in FIG.
This is a member for locking the entire magazine 5 to the housing at the storage position by engaging with the housing. Further, although not shown, a biasing means for biasing the claw member 81 in a direction to engage the engaging claw 8d is provided. The claw member 81 also engages the engaging claw 8 by the front end of the select plate 19 that has moved further forward from the position shown in FIG.
The engagement with d is released. These select plates 19, the driving force applying mechanism (described above) that applies a driving force to the select plates, and the claw member 81.
The magazine 5 is locked in the storage position with respect to the housing 2 by a biasing means such as a spring that biases the claw member, and an engaging claw 8d formed on the magazine body 8, and an operation signal is output. A locking mechanism is configured to release the locked state in response to a magazine eject signal. Also as shown in FIG. 4, the horizontal chassis 1
A detection switch 83 for detecting that the magazine is housed in the housing 2 is fixed on the top of the magazine 3 and at the rear left of the magazine 5. This detection switch 83 is an actuator 83 that can freely reciprocate within a predetermined range in the front-rear direction and engages with the magazine 5.
a, and a spring member (not shown) serving as a bias force applying means for applying a forward bias force to the actuator. After the magazine 5 is released from the locked state by the locking mechanism, it is caused to protrude outside the housing 2 by the bias force 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 with the front end of the select plate 19 and is for detecting that the select plate has reached its forward movement limit position. In addition, a detection switch 86 provided at the rear is connected to the rack member 4.
8, and is used to detect that the rack member 48 has reached its rearward movement limit position, that is, that disk loading has been completed. As shown in FIGS. 6 and 10, the movement distance of the select plate 19 is detected near the select plate 19, and the hook member 44 (see FIG. 2, for example) is used to carry a desired disk. A photo sensor 87 is disposed for stopping at the engagement position with the tray 11. On the other hand, the address plate 88 is on the right side of the select plate.
is provided. 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 its travel limit position. In addition, each of the aforementioned detection switches 83, 85, 8
Detection signals emitted from the photo sensor 6 and the photo sensor 87 are transmitted to a control section (not shown) disposed at a predetermined position within the housing 2 . The motors 24, 54 and turntable 35 are operated 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 having the above-mentioned structure will be briefly explained along with 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 the magazine 5, the select plate 19 is set to the 16th disc.
As shown in the figure, by the action of the photo sensor 87 and the address plate 88 (see FIG. 10a), the step portion 19e of the select plate is stopped at a position where it engages with the pin 28c of the arm member 28. . 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 starts rotating, and as shown in FIG.
The rack member 48 begins to move rearward as shown in FIG. The initial movement of the rack member 48 (rearward movement of approximately 5 to 7 mm) causes the holding portion 4 of the rack member 48 to
8e (see FIGS. 12a and b) is the hook member 44.
engages with the lower edge of the pin 44c (for example, shown in the sixth figure),
The hook member is held by a rack member 48. Due to this initial movement, the rack member 48 is moved as shown in FIG.
and b and the first position from the position shown in Figure 24a.
The position shown in Figures 8a, b and 24b is reached. As shown in FIGS. 18a and 18b, 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 moves to the movable piece 57.
The movable piece and therefore the hook plate 41
is locked against the rack member 48 as shown in FIG. 24a. Therefore, the following rack member 4
As the hook plate 8 moves rearward, the hook plate 41 is also moved rearward. As a result, the hook member 44 attached to the hook plate is driven rearward, and the tray 11 carrying the disc 10 to be played is projected from the magazine body 8. When the tray 11 projected from the magazine body 8 and the disk 10 supported on the tray reach a position directly below the turntable 35, that is, a position where the disk is concentric with the disk supporting surface of the turntable, the As shown in FIGS. 19a and 19b, the second guide groove 4 formed in the rail 40
0b and the ends of the fourth guide groove 48h of the rack member 48 in the same direction coincide, and at the same time, the hook plate 41
A regulating protrusion 40d whose rear end is provided on the rail 40
24c, the hook plate is locked against the rail 40, as shown in FIG. 24c. Therefore, the hook member 44, and therefore the disk, stops directly below the turntable 35. Immediately after this, the rack member 48 moves slightly backward, and as shown in FIG.
It enters into the guide groove 40b. Therefore, Figure 24d
As shown in FIG. 20, the locked state of the rack member 48 and the hook plate 41 is released, and only the rack member 48 is moved backward, as shown in FIGS. 20a and 20b. As only the rack member 48 moves backward as shown in FIGS. 20a and b and FIG. engaged with;
The intermediate member is thereby moved rearward. Therefore, the second
As shown in FIG. 1, a pin 76a provided at the front end of the intermediate member 76 allows the swing member 64 (consisting of a swing angle 62 and a clamp angle 63) to move in the opposite direction of the figure with the shaft 61 as the center. The disk 10 is swung clockwise, thereby causing the disk 10 to
The tray 11 is transported to the turntable 35 and 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. protrusion 28 provided on
f, and the arm member is swung by a predetermined angle in the counterclockwise direction in the figure about the shaft 26. 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.) operate to start playing. When the performance is finished, the disc is stored in the magazine body 8, but since the disc storage operation is the reverse process 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 operation switching mechanism (lock/release means) according to the present invention, the first and second
First to fourth guide recesses 4 formed on each opposing surface of the members (rail 40 and rack member 48, respectively)
0a, 40b, 48g, 48h, a pair of openings 41d, 41e provided in a portion of the third member (hook plate 41) disposed between the first and second members; a movable piece 5 that is arranged and capable of engaging with the first to fourth guide recesses;
It has an extremely simple structure of 6, 57, etc., and is therefore low in cost and easy to assemble. Furthermore, the first to fourth guide recesses, openings, and movable pieces operate reliably even if they are not formed with such high precision, making it easier to reduce costs. Furthermore, in the operation switching mechanism according to the present invention,
If a driving force is applied to only the second member to move it, the second member and the third member will move with respect to the first member.
The members can be moved separately or both together, and only one drive means is required compared to a configuration in which each of the second and third members is moved relative to the first member by a separate drive means. Reduced. Then,
The cost is getting cheaper.

[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, FIG. 7 through FIG. 15b are partial detailed views of the internal structure, and FIG. 16 through FIG. Diagram for explaining the operation of the player, 2nd
Figures 4a to 4d are conceptual diagrams conceptually and wire-wise showing the configuration of the operation switching mechanism according to the present invention, and Figures 25a and 25b are flowcharts showing the operation of the operation switching mechanism. Explanation of symbols of main parts, 2...Housing, 3
...Front panel, 3a, 41d, 41e...
opening, 5...magazine, 6...operation button group,
7... Display portion, 8... Magazine body, 8a... Guide groove, 8b... Flexible engagement claw, 8d... Engagement claw,
10...disk, 11...tray, 11a...
Guide pin, 11b, 28f, 62c...protrusion, 1
1d...Engaging portion, 11e...U-shaped notch, 13
...Horizontal chassis, 14,15...Vertical chassis, 1
5a, 15c...Protrusion part, 16...Mechanical chassis, 16a, 16e, 41a...Bracket part,
16c...Long groove, 19...Select plate, 1
9a, 48a...Rack part, 19c, 19d, 1
9e, 19f, 19g, 19h...Step part, 2
0,50...Double gear, 21,51...Pulley, 22,52...Belt, 23,53...Small pulley, 24,54...Motor, 26,61...Shaft, 28...Arm member, 28a...first arm part, 28b...second arm part, 28c, 28
d, 31a, 31b, 32a, 32b, 33a,
33b, 33c, 44a, 44c, 76a, 76
b, 81a...Pin, 30...Disk holding member, 30a...Horizontal groove, 30b...Protrusion, 31,
32, 33, 68... Lever member, 35... Turntable, 36... Carriage, 40... Rail (first member), 40a... First guide groove, 40b
...Second guide groove, 40c, 40d...Regulation protrusion,
40f...Cam hole, 41...Hook plate (third member), 41b, 63b...Long hole, 42...Sub bracket, 42a...Screw, 43...Guide shaft, 44...Hook member, 46... ...Positioning member, 46a...Positioning groove, 48...Rack member (second member), 48b...Claw portion, 48d, 6
3c...Protrusion part, 48e...Holding part, 48g...
Third guide groove, 48h...Fourth guide groove, 48j...
Recessed portion, 48k...claw-shaped engagement portion, 56, 57...movable piece, 62...swing angle, 62a...cam portion, 63...clamp angle, 63a...linear 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, 88... Address plate.

Claims (1)

[Claims] 1. A first member and a second member arranged substantially parallel to each other and relatively movable in mutually parallel directions;
and a third member at least partially disposed between the first and second members and movable in the direction of movement of the first and second members. An operation switching mechanism that continuously switches between movement of a member, movement of the second and third members relative to the first member, and movement of the second member relative to the first and third members, the operation switching mechanism comprising: first and second guide recesses provided spaced apart in the movement direction; and provided in the second member so as to be able to face the first and second guide recesses and spaced apart in the movement direction, respectively. third and fourth guide recesses extending in the direction; the third member is provided with a distance slightly larger than the distance between the third and fourth guide recesses in the moving direction; A pair of openings that can face the first to fourth guide recesses, a movable piece that is disposed within the pair of openings and can engage with the first to fourth guide recesses, and the first and third guide recesses. When facing the opening, the third
a first regulating means for regulating movement of the member; and a second regulating means for regulating the movement of the member.
and a second regulating means for regulating the movement of the third member while the fourth guide recess faces the opening, the first and second members at least within the movement range of the third member. The distance between opposing surfaces of the movable piece is smaller than the outer diameter dimension of the movable piece, and one of the opposing surfaces of the first and second members and the guide recess facing the one surface of the first to fourth guide recesses. An operation switching mechanism characterized in that a distance from a bottom surface is slightly larger than an outer diameter dimension of the movable piece.