JPH0138767Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a disc player, and more particularly to a front loading disc player equipped with a disc transport mechanism that automatically transports the disc to a playing position. Audio disc with sound grooves on the surface or
A disk, such as a digital audio disk that records PCM signals, is carried by a disk holder that protrudes from the player housing so that it can be freely stored, and is completely stored inside the housing. A so-called front-loading disc player is already known which allows for efficient use of space. Recently, such front-loading disk players are equipped with a disk transport mechanism that includes the above-mentioned disk carrier and almost automatically transports the disk to the playing position or very close to it, thereby minimizing the effort required for disk loading. What was left out is being developed. Incidentally, when positioning the disk placed on the disk carrier outside the housing on the playing position, that is, on the turntable, the present applicant has already proposed Utility Model Application No. 57-109774 (Utility Model Application No. 59-17066). As proposed in the Japanese Patent Publication (Japanese), the turntable is transported by moving in two directions, one parallel to the rotating surface of the turntable and the other perpendicular thereto. For this reason, the disk transport mechanism includes a tray that is slidably provided in the housing in a direction parallel to the rotating surface of the turntable;
The container includes a container that is movably supported by the tray in the direction perpendicular to the tray, can project out of the housing together with the tray, and cooperates with the tray to carry a disk. Among the above-mentioned disk transport mechanisms, the mechanism for moving the container relative to the tray is one that engages with the container, as also proposed in the above-mentioned Utility Application No. 57-109774 (Japanese Utility Model Application No. 59-17066). Some cam members include a pair of cam members that are provided on both sides of the tray so as to be movable in the tray movement direction, and a drive means that interlocks and drives both cam members. In the front loading disk player disclosed in Utility Model Application No. 57-109774, the driving means for driving both cam members is provided in the tray, and the cam members are moved in opposite directions in synchronization with each other. It is comprised of an interlocking mechanism and a driving force applying means that is disposed at a predetermined position within the housing and engages with the interlocking mechanism to apply a driving force to the interlocking mechanism when the tray and container are housed in the housing. Specifically, the gear that is part of the interlocking mechanism and the gear that is part of the driving force applying means and that is rotationally driven by the motor mesh when the tray and container are housed in the housing. This is a method to do so. In a front-loading disk player with such a configuration, if the teeth of the two gears coincide by chance, it may become difficult for the two gears to mesh with each other, and this is a problem that must be solved in order to achieve smooth disk transport. It was becoming. The present invention has been devised in view of the above-mentioned points, and its object is to provide a front loading disc player that can transport discs smoothly and reliably. As is clear from the conceptual diagrams of FIGS. 16 and 17, the front loading disc player according to the present invention includes a housing, a playing means provided in the housing, and a first disc player carrying a disc to be played. a predetermined direction and a second direction perpendicular to this
a disk conveyance mechanism that moves the disk in a predetermined direction and conveys it to a performance position, and the disk conveyance mechanism includes a tray that is slidably provided in the first predetermined direction, and a tray that is provided on the tray and that is arranged together with the tray. a container that can protrude to the outside of the housing and cooperates with the tray to support the disk; and a cam hole that engages with the container, and is provided on the tray so as to be movable in the first predetermined direction. A pair of cam members, a driving force applying means for applying a driving force in the first predetermined direction to one of the cam members, and an interlocking mechanism provided on the tray and interlocking the respective cam members. The driving force applying means includes a moving member movably supported in the first predetermined direction with respect to the housing, a drive source for driving the moving member, and when the tray is housed in the housing. It is characterized by comprising a cam member to which the driving force is applied and a connecting mechanism that connects the moving member. DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a front loading disc player according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the figure, reference numeral 1 indicates the entire front loading disc player. As shown in FIG. 1, the front panel 3 of the housing 2 is provided with a rectangular opening extending in the left-right direction so that a disk carrying portion, which will be described later, can protrude outside the housing. However, the left and right direction referred to here refers to the front direction indicated by arrow Y. Therefore, the direction of arrow X in the figure indicates leftward, and the direction of arrow Z indicates upward. The front panel 3 is also provided with a group of operation buttons 5 for operating the disc player. As shown in FIG. 2, a chassis 6, which is made of a processed steel plate or the like and forms a part of the housing, is fixedly installed within the housing body. As also shown in FIG. 2, a plurality of horizontal rollers 7a and vertical rollers 7b are pivotally supported at the front end of the upper surface of the chassis 6. The tray 8 is supported slidably in the front and rear directions by these rollers 7a and 7b. More specifically, a pair of guide rails 10 are attached to the lower surface of the tray 8 and extend in the front-rear direction.
a and 10b are the horizontal roller 7a and the vertical roller 7b
It is slidably engaged with. Further, an opening 3 of the front panel 3 is provided at the front end of the tray 8.
A movable panel 11 that can fit into and close a
is installed. For example, as shown in FIG. 7, the tray 8 includes
can protrude out of the housing 2 together with the tray;
A container 14 that cooperates with the tray and supports a disc 13 (see FIG. 1) to be played is provided so as to be movable in the vertical direction. The container 14 and the tray 8 constitute a disk carrier. Also, disk 1 is on container 14.
A friction member is attached to 3 to apply a frictional force. Note that the disk 13 uses a laser beam to record and read signals. As is particularly clear in Figures 4 and 7,
The tray 8 is provided with a substantially circular opening 14 into which a disk 13 can be inserted. The container 14 is disposed on the back side of the tray 8 so as to close the opening 15 and to be movable in the vertical direction. As shown in FIGS. 7 and 11, on the periphery of the opening 15, for example, four claws 15a, preferably pairs of claws 15a extending toward the container 14, are provided facing each other. A tapered portion 15b that slopes from inside to outside toward the container 14 is formed at the tip of each claw portion 15a. As shown in FIG. 3, FIG. 4, FIG. 7, FIG. 8, FIG. 9, and FIG. It is provided so as to be freely movable in the front and rear direction via. The cam members 18 and 19 are each formed with cam holes 18a and 19a that are slidably engaged with each pair of four engagement pins 14a fixed to the container 14. Cam hole 18
The cam hole 19a has a tapered portion that slopes upward from the front toward the rear, and the cam hole 19a has a tapered portion that slopes downward from the front toward the rear. Therefore, the container 14 is moved up and down by the relative movement of both cam members 18 and 19. As is clear from FIGS. 2, 3, 5, and 8, a moving member 21 is disposed on the lower surface of the right end of the chassis 6, and a pair of pins protruding from the lower surface of the chassis 6. It is attached to the chassis 6 via the shaft 6a so as to be movable in the front-rear direction. A rack portion 21 is provided on the left side of the front end of the moving member 21.
a is formed. A gear 22 is pivotally mounted on the lower surface of the chassis 6 and meshes with the rack portion 21a. A motor 23 is disposed near the gear 22 and is fixed to the chassis 6 via a bracket 23a. The output shaft of the motor 23 is connected to the gear 22 via a speed reduction mechanism including a belt 24a, a pulley 24b, a worm 24c, a worm wheel 24d, and the like. By the speed reduction mechanism, motor 23 and gear 22, the moving member 21
A drive source is configured to drive the. By the way, as is particularly clear in FIGS. 4 and 8, the right cam member 19 of the pair of cam members 18 and 19 has a connecting lever 27 connected to the shaft 2.
It is rotatably provided via 7a. Further, the coupling lever 27 is applied with a bias force in the counterclockwise direction in FIG. 4 by a coil spring 27b. A pin 2 is attached to the front end of the connecting lever 27.
7c extends downward and projects, and the pin can engage with two engaging portions 21b and 21c formed approximately at the center of the moving member 21. The engaging portion 21c includes a tapered portion that slopes rightward from the front toward the rear, and a portion that is connected to the rear end of the tapered portion and extends left and right. Connection lever 2
The rear end portion of the tray 7 is bent toward the right, and when the bent portion 27d engages with a locking recess 8a (see FIG. 7) formed in the tray 8,
The cam member 19 is adapted to be locked relative to the tray until the tray reaches its storage position within the housing 2. The above connection lever 27, coil spring 27b
A connecting mechanism that connects the cam member 19 and the moving member 21 when the tray 8 is housed in the housing 2 is constituted by the small peripheral members related thereto. Moreover, this connection mechanism and the moving member 2
1, the drive source including the motor 23 and driving the moving member 21, and peripheral small members related thereto constitute a driving force applying means for applying a driving force to the cam member 19 in the front-rear direction. ing. Next, a mechanism for interlocking the left and right cam members 18 and 19 provided on the tray 8 will be explained. As shown in FIGS. 4, 5, and 7, a bracket 29 is fixedly provided at the rear end of the tray 8 and has a support shaft 29a projecting therefrom that extends in the vertical direction. A rotary lever 30 whose both ends are pivotally connected to the rear ends of the cam members 18 and 19 is attached to the support shaft 29a so as to be rotatable within a predetermined range. These support shafts 29a and rotating levers 30
Thus, an interlocking mechanism for interlocking both cam members 18 and 19 is formed. An eject lever 32 is arranged near the bracket 29, and is swingably attached to the tray 8 with a screw 32a. A shaft 32b is fixed to the swinging end of the eject lever 32, and the shaft can come into contact with the inner wall surface of the rear end of the chassis 6. The eject lever 32 is biased by a coil spring 33 in a direction in which its swinging end, that is, the shaft 32b approaches the inner wall surface of the rear end of the chassis 6. Next, a description will be given of a prohibiting means that prohibits movement of the disk carrying part with respect to the housing 2 when the disk carrying part consisting of the tray 8 and the container 14 is housed in the housing 2. As shown in FIG. 7, two plates 35a and 35b are fixed to the lower surface of the front end of the tray 8, and a pair of left and right locking rollers 36a and 36b are protruded from the lower surface of one plate 35b. has been done. On the other hand, as shown in FIG.
A prohibition plate 38 is provided on the upper surface of the front end so as to be slidable in a direction perpendicular to the moving direction of the tray 8, that is, in the left-right direction. At both ends of the prohibition plate 38, engaging portions 38a are provided which can engage with the locking rollers 36a and 36b, respectively.
In addition, the prohibition plate 38 is connected to the coil spring 38.
b to the left, that is, the locking roller 36a
and 36b. A blocking lever 39 is swingably provided at the left end of the inhibiting plate 38 via a shaft 39a. A protrusion 39 extending forward is provided at the swinging end of the blocking lever 39.
b is formed, and when this protrusion 39b comes into contact with a predetermined contact portion 6b formed on the chassis 6, movement of the prohibition plate 38 in the biasing direction of the coil spring 39, that is, in the left direction is prevented. .
The blocking lever 39 is also biased clockwise in FIG. 2 by a coil spring 40. Here, the locking roller 3 of the prohibition plate 38
The engaging portion 38a with the locking rollers 36a and 36b has a tapered portion 38c that presses the prohibition plate in the opposite direction to the urging direction, that is, to the right, by engaging with the locking rollers 36a and 36b. It includes a notch 38b extending in the left-right direction at the rear and into which the locking rollers 36a and 36b can fit. Further, after the locking rollers 36a and 36b engage with the tapered portion 38c, the locking rollers engage with the swinging end of the blocking lever 39, and the projection 39b provided on the swinging end engages with the above-mentioned predetermined position. The contact state with the contact portion 6b is released. The above-mentioned prohibition plate 38, coil spring 38b, blocking lever 39, coil spring 40
And the surrounding small members related to these constitute a prohibition means for prohibiting the movement of the disk holding part (tray 8 and container 14) with respect to the housing 2 when the disk holding part (tray 8 and container 14) is housed in the housing 2. There is. Further, the disk carrying portion, the cam members 18 and 19, the driving force applying means that applies a driving force to the cam member 19, the interlocking mechanism that interlocks both the cam members 18 and 19, and the inhibiting means , a disk conveying mechanism is constructed that carries a disk 13 to be played and moves the disk in the front-rear direction and up-down direction to convey it to a playing position. As is clear in FIG. 2, a carriage 43 is disposed below the chassis 6, and carries an optical pickup means (not shown) for reading information from the disk 13, and extends in the front-rear direction. The housing 2 is slidably supported by a guide shaft 44 fixed to the housing 2. A rack portion 43a is provided at the right end of the carriage 43 and extends in the front-rear direction, which is the direction in which the carriage moves. The carriage 43 is driven by a drive mechanism including a gear 45 that meshes with the rack. Incidentally, an opening 6c is formed in the chassis 6 so as not to interfere with information reading by the above-mentioned pickup means. Further, the container 14 also has an opening 14b that has the same effect as the opening 6c.
(shown in Figure 7) is provided. As shown in FIGS. 2 and 3, a spindle motor 49 is disposed in the direction of movement of the carriage 43 and rotates a turntable 48 that carries the disk 13 and rotates. However, the second
The turntable 48 is not shown in the figure.
As shown in detail in FIG. 10, the turntable 48 includes a substantially dish-shaped disk mounting portion 48a fitted to the output shaft 49a of the spindle motor 49, and a support portion 48b fitted to the tip of the output shaft 49a. and,
A sliding part 48c is provided between the disk mounting part 48a and the supporting part 48b and is slidably fitted to the output shaft 49a, and a coil spring 48d applies an upward bias force to the sliding part 48c. It is made up of. Further, a taper is formed on the outer periphery of the upper end of the sliding portion 48c to engage with the center hole 13a of the disk 13 to center the disk 13. The above-mentioned carriage 43, guide shaft 44, turntable 48, spindle motor 49, and related peripheral small members constitute a playing means for performing a disc performance. Next, a description will be given of a disk clamp mechanism that clamps the disk transported to the performance position. As is clear from FIGS. 3, 5, 6, and 10, a support member 52 is provided within the chassis 6.
is located. The support member 52 extends parallel to the rotating surface of the turntable 48 and supports the chassis 6.
It is swingably supported by a pair of support shafts 53 fixedly attached to. A pressing member 54 that clamps the disk 13 placed on the turntable 48 in cooperation with the turntable is rotatably supported at the swinging end of the support member 52 . Here, the position of the support member 52 shown in FIG. 20 is referred to as the unclamped position of the support member. Further, the position where the support member 52 swings a predetermined amount clockwise from the unclamped position and the press member 54 presses the disk 13 on the turntable 48 is referred to as the clamp position of the support member. That is, the support member 52 swings between the clamp position and the non-clamp position. To describe the support member 52 in more detail, it has a pair of left and right arm portions 52a and 52b that are swingably supported by the support shaft 53, and a pair of arm portions 52a and 52b that bridge the swinging end portions of the two arm portions. A bridge portion 52c rotatably supports the pressing member 54 in the central portion.
It is composed of. For example, as shown in FIG. 6, a coil spring 56 whose reaction force is received by the chassis 6 is connected to the left arm portion 52a of the arm portions 52a and 52b. Therefore, it is biased toward the clamp position. As is particularly clear in FIG. 5, in front of the bridge portion 52c of the support member 52, a synchronization bar 58 is arranged as a synchronization means for synchronizing the swinging of the left and right arm portions 52a, 52b. The synchronization bar 58 extends substantially parallel to the bridge portion 52c,
Moreover, it is rotatably supported by the chassis 6. Both ends of the synchronization bar 58 are bent at right angles in substantially the same direction, and the synchronization bar as a whole has a U-shape. As shown in FIG. 6, the bent portions 58a and 58b at both ends of the synchronization bar 58 are smoothly engaged with the engaging protrusions 59a and 59b provided on the outer surfaces of the swinging ends of the arms 52a and 52b, respectively. It matches. Of the two outer engaging protrusions, the engaging protrusion 59a provided on the arm portion 52a biased by the coil spring 56 is directed downward toward the bent portion 58a, that is, in the biasing direction by the coil spring 56. engaged. Further, an engagement protrusion 59b provided on the other arm portion 52b engages with the bent portion 58b on the opposite side to the biasing direction. As shown in FIGS. 3, 5, and 10, the swinging end of the right arm portion 52b has a tapered portion 52d that slopes downward toward the rear.
is formed, and a pin 21d protruding from the moving member 21 is slidably engaged with the tapered portion. That is, the arm portion 52d, and thus the support member 52, swings as the moving member 21 moves back and forth. The story will go back and forth, but the bearing section that supports the pressing member 54 will be explained. As is particularly clear in FIG. 10, a spindle 62 is disposed at the center of rotation of the pressing member 54, and is inserted through an opening formed in the bridge portion 52c of the supporting member 52. Pressing member 54
is fixed to the lower end of this spindle 62. Further, the lower end portion of the spindle 62 can be fitted into a guide hole formed at the rotation center of the support portion 48b of the turntable 48. The spindle 62 is provided with a flange portion 62a to support the pressing member 54. Above the flange portion 62a, there are an inner race 63a, an outer race 63b, and a plurality of spherical bearing members 6 interposed between them.
A ball bearing 63 consisting of 3c is disposed and fitted onto the spindle 62.
Further, a receiving plate 64 made of a viscoelastic material such as rubber is adhered to the lower surface of the bridge portion 52c so as to come into contact with the outer race 63b. Together with the ball bearing 63, the bridge portion 52c and the receiving plate 64
A washer 65 made of resin or the like is located at a position sandwiching the two, and is fitted onto the spindle 62.
Further, an E-ring 66 serving as a retaining member is disposed at a position to sandwich the washer 65 together with the bridge portion 52c, and is fitted onto the upper end of the spindle 62.
When the disk is clamped, the outer race 63b and the receiving plate 64 are in contact with each other, and the washer 65 and the E-ring 66 are separated from each other. Further, when the clamp is released, the outer race 63b and the receiving plate 64 are separated, and the washer 65 and the E-ring 66 are brought into contact with each other. The spindle 62 and ball bearing 6 mentioned above
3. The receiving plate 64, the washer 65, and the E-ring 66 constitute a bearing portion of the pressing member 54. Further, the bearing portion, the support member 52, and the coil spring 56 constitute a support mechanism that rotatably supports the pressing member 54. Furthermore, the support mechanism, the pressing member 54, and the synchronization bar 5
The synchronizing means including the synchronizing means 8 and the peripheral small members related thereto constitute a part of the disk clamping mechanism. As shown in FIG. 10, a detection switch 69 is disposed below the swinging end of the right arm portion 52b of the support member 52. As shown in FIG. This detection switch 69 functions as a detection means for detecting whether the disk has been correctly clamped, and therefore also detects whether misclamping has been performed.
A support member 52 fixed to the chassis 6
It is arranged so as to come into contact with the protrusion 52e formed on the arm portion 52b only when it is in the above-mentioned clamp position. Note that this detection switch 69 is included in the disk clamp mechanism. As shown in FIG. 2, at the front and back of the right end of the chassis 6, there is a detection switch 70a for detecting the completion of the forward and backward movement of the moving member 21 by coming into contact with the moving member 21, that is, the operation of the container 8. and 70b are fixedly installed. In addition, the front end of the chassis 6 comes into contact with the prohibition plate 38 to detect leftward movement of the prohibition plate, that is, to detect that the disk carrying portion consisting of the tray 8 and the container 14 is housed in the housing 2. A detection switch 71 is fixed. Furthermore, although not shown, a detection switch is provided to detect when the carriage 43 has reached its travel limit. Further, as shown in FIG. 2, in addition to the above-mentioned detection switches, a pair of photo sensors 72a and 72b are arranged for determining the diameter of the disk. Detection signals emitted from the above-mentioned detection switches 69, 70a, 70b, and 71 and the detection switch that detects the movement limit of the carriage 43 are transmitted to a control unit (not shown) provided at a predetermined position within the housing 2. . The spindle motor 49, the motor 23, and a motor (not shown) for driving the carriage 43 are operated at timings described later in response to operation signals sent from the control section in response to each of these detection signals. Note that the mechanism as the above-mentioned embodiment is conceptually and abbreviated in the conceptual diagrams of the mechanism in FIGS. 16 and 17. These mechanism conceptual diagrams are based on the following mechanism conceptual diagram creation rules. Rules for Creating Conceptual Mechanism Diagrams Definition A conceptual diagram of a mechanism is a drawing that conceptually abbreviates a mechanism as an example. How to represent members in conceptual diagrams of mechanisms Members and force acting surfaces are, in principle, represented by a single solid line. However, portions that act as surfaces on which a relatively wide force is applied and portions that perform different functions at different locations are shown as surfaces surrounded by solid lines. The following abbreviations are used to express the mutual relationships and operations of members.

【table】

[Table] Next, the operation of the front loading disc player having the above-mentioned configuration will be briefly explained along with the playing procedure, with reference to FIGS. 12 and 13 and FIGS. 18 to 21. First, the states shown in FIGS. 2, 18, and 19 are initial states. For example, as shown in FIG. 2, the tray 8 is housed in the housing 2 in the initial state. Further, the moving member 21 is at the rear limit position, and the rear end of the moving member is in contact with the detection switch 70b. The swinging end of the eject lever 32 shown in FIG. 4 is urged by a coil spring 33 and abuts against the inner wall surface of the rear end of the chassis 6. As shown in FIG. Also, locking rollers 36a and 36b (shown in the seventh figure) protruding from the tray 8
is fitted into the notch 38d of the prohibition plate 38, and the tray 8 is locked with respect to the housing 2. Note that the container 14 is at the upper limit position, and the support member 52 of the disk clamp mechanism is
is located in the unclamped position. When the eject button of the operation button group 5 shown in FIG. (direction of arrow X). Therefore, the notch 38d of the prohibition plate 38 and the locking roller 3
6a and 36b are released, and the tray 8 is unlocked from the housing 2. Therefore, the tray 8 is pushed forward slightly by the action of the eject lever 32 and the coil spring 33. Thereafter, the tray 8 is pulled out manually. As shown in FIGS. 1, 16, and 17, the tray 8 and container 14 protruding from the housing 2 carry the disk 13. After carrying the disk 13, the tray 8 is pushed by hand and housed in the housing 2. As shown in FIG. 12a, as the tray 8 is housed in the housing 2, the locking rollers 36a and 36b engage with the tapered portion 38c of the prohibition plate 38, and the prohibition plate 38 As shown in b, it is moved to the right (counter-arrow X direction). When the tray 8 is further pushed into the housing, the locking rollers 36a,
36b is removed from the tapered portion 38c and engages with the swinging end of the blocking lever 39. Twist prevention lever 3
9 swings, and as shown in FIG. 12c, the contact state between the projection 39b formed on the blocking lever and the predetermined contact portion 6b is released. Therefore, the prohibition plate 38 moves to the left, and the notch 3 of the prohibition plate
8d and the locking rollers 36a, 36b are fitted, and the tray 8 is locked with respect to the housing 2. As the prohibition plate 38 moves to the left, the detection switch 71 is operated, so that the motor 23
begins to rotate, and the moving member 21 begins to move forward. When the moving member 21 starts to move forward, first, as shown in FIG. Lever 27
As shown in FIG. 13b, the engagement between the bent portion 27d of the connecting lever 27 and the locking recess 8a of the tray 8 is released. When the moving member 21 moves further forward, the connecting lever 2 is moved as shown in FIG. 13b.
The pin 27c of No. 7 abuts on a portion of the engaging portion 21c that extends in the left-right direction. Therefore, as shown in FIG. 20, the cam member 19 moves forward (in the direction of arrow Y) together with the moving member 21. Therefore, for example, the fourth
The cam member 1 is rotated through the pivot lever 30 shown in the figure.
8 is moved rearward, the container 14 is lowered as shown in FIG. 21, and the disk 13 is placed on the turntable. On the other hand, as is clear from FIG.
1, the pin 21d protruding from the movable member slides along the tapered portion 52d formed on the arm portion 52b, and therefore the support member 52
is lowered, and the disk is clamped as shown in FIG. Further, when the movement of the moving member 21 is completed, the front end of the moving member 21 is detected by the detection switch 70.
d (see FIG. 2), the motor 23 stops. Thereafter, by pressing the performance button of the operation button group 5, the drive mechanism of the carriage 43 and the spindle motor 49 start operating, and a performance is performed. When the performance is finished and it is detected that the carriage 43 has reached its limit position, the spindle motor 4
9 and the carriage drive mechanism stops. After that, the motor 23 automatically starts rotating in reverse and moves the tray 8.
The projecting operation is performed to the outside of the housing. however,
When the tray 8 protrudes, the pin 27c of the connecting lever 27 is moved against the moving member 2, as shown in FIG. 13c.
1, and thereby the left and right cam members 18, 19 are moved. In this way, it is collected into a disk. Note that if the eject button is pressed during the performance, the same operation as above is performed and the disc is recovered. Furthermore, when clamping the disk, the disk may shift in the radial direction on the turntable for some reason, resulting in the disk recording surface being caught between the turntable 48 and the pressing member 54 during clamping, a so-called misclamp. In this case, the support member 52 cannot be lowered to the clamp position. Therefore, the detection switch 69 is not pushed by the arm portion 52b (see FIG. 10).
It may happen that the detection switch 69 does not operate. Therefore, we take advantage of the fact that the time from the start of the disk clamping operation, that is, the downward swinging of the support member 52 including the arm portion 52b, to the completion of the clamping, that is, the time until the detection switch 69 is activated, is almost constant. After the predetermined time has elapsed, the ejection operation is automatically performed. In this front loading disc player, when the tray 8 is housed in the housing 2, the connecting lever 27 that connects the cam member 19 and the moving member 21 can freely swing in parallel to the rotating surface of the turntable 48. The first
As shown in FIG. 4 and FIG. 15, it is also possible to adopt a type in which the turntable swings in a direction perpendicular to the rotating surface of the turntable. As described in detail above, in the front loading disk player according to the present invention, a driving force is applied to one of a pair of cam members movably provided on the tray. a moving member whose means is movably supported in the tray moving direction with respect to the housing; a drive source for driving the moving member; and a cam member to which the driving force is applied when the tray is housed in the housing. and a connecting mechanism that connects the moving member. Therefore, the cam member and therefore the container are reliably driven, ensuring smooth and reliable disk transport.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the entire front loading disc player according to the present invention, and FIGS. 2 and 3 are a plan view and a front view, respectively, including a partial cross section of the internal structure of the front loading disc player. , FIG. 4 is a plan view including a partial cross section of the tray and its peripheral members, FIGS. 5 to 8 are partial perspective views of the internal structure, FIGS. 9 a, b, and 10.
Figures 1 and 11 are partially detailed views of the internal structure.
Figures 2a to 2c and 13a to 13c are diagrams for explaining the operation of the internal structure, Figures 14 and 15 are diagrams showing partial modifications of the internal structure, and Figure 1.
6 and 17 are conceptual diagrams conceptually showing the mechanism as an embodiment of the present invention from a plan view and a side view, respectively, and FIGS. 18 to 21 are explanatory diagrams of the operation of the embodiment of the present invention. be. Explanation of symbols of main parts, 2...Housing, 3
...Front panel, 3a, 6c, 14b, 15
. . . Opening, 5 . . . Operation button group, 6 . . . Chassis, 6a, 21d, 27c . , 8a...Locking recess, 10a,
10b... Guide rail, 11... Movable panel,
13...disk, 14...container, 14a...
...Engagement pin, 15a...Claw portion, 15b, 38c,
52db... Taper part, 18, 19... Cam member,
18a, 19a...Cam hole, 20...Support plate, 21...Moving member, 21a...Rack part, 2
1b, 21c, 38a... engaging portion, 22, 45...
...Gear, 23...Motor, 23a, 29...Bracket, 24a...Belt, 24b...Pulley,
24c... Worm, 24d... Worm wheel, 27... Connection lever, 27a, 32b, 39
a...Axis, 27b, 33, 38b, 40, 48
b, 56...Coil spring, 27d, 58
a, 58b...Bending portion, 29a, 53...Supporting portion, 30...Rotating lever, 32...Eject lever, 32a...Screw, 35a, 35b...Plate, 36a, 36b...Locking roller , 38...
Prohibition plate, 38d...notch, 39...blocking lever, 39b...protrusion, 43...carriage,
43a...Rack part, 44...Guide shaft,
48...Turntable, 48a...Disc placement part, 48b...Support part, 48c...Sliding part, 4
9... Spindle motor, 49a... Output shaft, 5
2...Support member, 52a, 52b...Arm part,
52c...Bridge part, 52e...Protrusion, 54...
...Press member, 58...Synchronization lever, 59a, 59
b...Engaging protrusion, 62...Spindle, 62a...
...Flange part, 63...Ball bearing, 63
a... Inner lace, 63b... Outer lace,
63c... Spherical bearing member, 64... Receiving plate,
65...washia, 66...E ring, 69,7
0, 70b, 71...detection switch, 72a, 7
2b...Photo sensor.

Claims (1)

[Scope of utility model registration request] a housing, a playing means provided in the housing, and a disk conveyor that carries a disk to be played and moves the disk in a first predetermined direction and a second predetermined direction perpendicular thereto to a playing position. a mechanism, the disk transport mechanism includes a tray slidably provided in the first predetermined direction, and a mechanism provided on the tray that can protrude to the outside of the housing together with the tray and cooperates with the tray to a container supporting a disk; a pair of cam members having cam holes that engage with the container and movably provided on the tray in the first predetermined direction; 1. A driving force applying means for applying a driving force in a predetermined direction, and an interlocking mechanism provided on the tray and interlocking each of the cam members, and the driving force applying means is configured to apply a driving force to the housing in the first direction. A moving member supported movably in a predetermined direction, a drive source for driving the moving member, and a cam member to which the driving force is applied when the tray is housed in the housing connect the moving member. A front loading disc player characterized by comprising a coupling mechanism that