JPH0437334Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is a disc player that uses a disc on which music, etc. is recorded using digital signals, is mounted on a turntable, and a laser pick-up is used to read and play back the disc recorded on the disc. Relating to a mounting device.

``Prior Art'' Conventionally, there has been a technique for opening and closing a disk holder attached to a tray on which the disk is placed, using a chuck arm that clamps the disk between the turntables.

"Problems to be Solved by the Invention" In the prior art, the chuck arm directly opens and closes the disk holder, so the chuck arm shape cannot be easily simplified and made more compact, and the chuck arm structure does not allow the disk holder to be attached to the tray. There was a problem in that the position of the holder was limited and the shape of the disk holder and its mounting structure could not be easily simplified.

"Means for solving the problem" Therefore, the present invention is a disk loading device for a disk player which comprises a chassis, a tray which slides on the chassis to store and eject the disk, a disk holder which supports the centre of the disk on the top surface of the tray when storing or ejecting the disk, a chuck arm which begins to move downward at the storage end of the tray, and a turntable which holds the disk between the chuck arm and the turntable as the chuck arm moves downward, and which is provided with a holder opening/closing lever which abuts the chuck arm and the disk holder, and which moves the disk holder away from the disk in conjunction with the downward movement of the chuck arm.

"Operation" Therefore, by connecting the chuck arm and the disk holder with the holder opening/closing lever,
The chuck arm shape can be easily simplified and made more compact than before, and the conventional problem of mutually restricting the chuck arm structure and the disk holder mounting position can be eliminated, and the disk holder shape and its mounting structure can also be simplified easily. The disc support structure, such as the tray and chuck arm, can be made simpler and more functional than in the past.

"Embodiments" Hereinafter, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 is an overall plan view with a tray attached, and as shown in FIGS. 2 and 8, a turntable motor 3 is fixedly installed on the lower side of the center of a chassis 2 installed inside a disc player cabinet 1. , the output shaft 4 of the motor 3 is made to protrude to the upper surface side of the chassis 2, and a turntable 5 is provided at the upper end, and as shown in FIG. One end of the rack gear 10 in the upward position is fixed to the pedestal 7 with a screw 11, and a pick-up moving motor 12 is fixedly installed on the lower surface of the chassis 2, and a screw 13 is installed from the upper surface of the chassis 2. , 13 to the motor 12 by screwing them,
The output shaft 14 of the motor 12 is made to protrude toward the upper surface of the chassis 2, and the worm gear 15 is fitted onto the output shaft 14 from above. Further, a reduction gear 17 is provided on the upper surface of the chassis 2 via bearings 16, 16, and one end of the gear 17 shaft is rotatably fixed with a locking pawl 19 and the other end with a screw 18,
The large diameter side of the gear 17 is meshed with the worm gear 15, and the small diameter side is meshed with the rack gear 10, so that the pickup 6 is slid back and forth by forward and reverse rotation of the motor 12.

Furthermore, as shown in Figures 1, 3 and 4,
The tray 21 is provided with a tray 21 on which the disk 20 is placed and placed on and taken out from the turntable 5, and the tray 21 is provided with a disk holder 22 that lifts and supports the disk 20 with respect to the disk placement surface 21a of the tray 21, and is provided on the lower surface side of the tray 21. The shaft 25 of the holder 22 is rotatably supported by the locking pawl 24 of the bearing 23, and a spring 26 is provided between the tray 21 and the base end of the holder 22 to project and support the tip of the holder 22 to the upper surface side of the tray 21.

As shown in FIGS. 1, 6, and 8, a chuck plate 27 is provided to sandwich the disk 20 between the top surface of the turntable 5, and the chuck plate 27 is rotatably attached to the tip of a chuck arm 28.
The chuck plate 27 is pressed downward by the leaf spring 29, and the shaft 3 at the proximal end of the chuck arm 28 is
0 and 30 are rotatably supported by bearings 31 and 31 on the chassis 2 via locking pawls 32 and screws 33, and the tip side of the tick arm 28 is attached to the proximal end of the shaft 3.
0 and 30 as fulcrums, and the chuck plate 27 is raised and lowered relative to the turntable 5.

As shown in FIG. 1, a tray entry/exit gear 35 meshes with a rack gear 34 on one side of the tray 21.
is pivotally supported on the upper surface of the chassis 2, and as shown in FIG.
The loading/unloading gear 35 is connected to the tray loading/unloading motor 41 provided on the bottom side of the chassis 2 through the guides 42 . While moving the tray 21 in and out by forward and reverse rotation, the lifting pin 43 protruding from the lower surface of the base end of the chuck arm 28 is engaged with the groove cam 44 on the upper surface of the tray loading/unloading gear 35, and the cam 3
The chuck arm 28 is moved downward by the cam 44 at the free rotation part 35a of the tray 21, and at other times, the chuck arm 28 is
8 is configured to support upward movement.

Further, as shown in FIGS. 1, 6, and 7, screws 45, 46 and a long hole 47 are provided on the upper surface of the chassis 2.
The holder opening/closing lever 48 is fixed in position so as to be swingable through the lever, and a swing pin 49 protruding from the lower surface of the chuck arm 28 is locked to a swing fulcrum at the base end of the lever 48, and the swing pin 49 at the tip of the lever 48 is locked. A descending guide arm 50 is integrally connected to the moving part with an upward slope, and when the tray 21 enters, the chuck arm 28 moves downward from the solid line state in FIG. 6 to the imaginary line state, and the swing pin 49 moves downward as shown in the solid line in FIG. By moving the lever 48 from the solid line state to the virtual line state and pushing the lever 48 in the direction of the arrow in FIG. 7, the lever 48 is moved from the solid line state to the virtual line state in FIG. The lower surface of the guide arm 50 is pressed against the formed locking shaft body 51, and this arm 5
By pushing the locking shaft body 51 downward at a slope of 0, the tip of the holder 22 is lowered against the spring 26 at the base end, and in conjunction with the disk clamping operation of the chuck arm 28, the lever 48 is swung, and the storage operation of the tray 21 causes the disk holder 22 to move in and out and away from the disk 20,
The disc 20 is supported by the turntable 5 and the chuck plate 27.

Furthermore, as shown in FIGS. 1 and 8, a lock pin 52, which is a locking member, is provided on the upper surface of the chassis 2.
is erected and fixed, and an upward truncated conical opening 5
3 is opened on the tip side of the disk holder 22, and when the disk holder 22 is moved in and out and lowered by the storage operation of the tray 21, the lock pin 52 engages in the opening 53 of the holder 22, and the tray 21 is moved in and out (front and back). It is constructed to prevent directional movement.

Next, as shown in FIGS. 1 and 9, hollow bosses 54 for fixing the chassis 2 to the cabinet 1 are protruded and fixed to the lower surface of the chassis 2, and the bosses 54
A cushion rubber 55 is placed between the lower end and the cabinet 1.
sandwiching the tray 21 and the chuck arm 28.
A screw 58 is inserted into the hollow of the boss 54 through the through holes 56 and 57 formed in the housing, and the screw 58 is screwed and fixed to the cabinet 1 while passing through the cushion rubber 55. 2 is supported so that it can swing freely,
The boss 54 is configured to be fixed and operable to the cabinet 1 from the upper surface of the chassis 2 opposite to the lower surface of the chassis 2 to which the boss 54 is attached.

The present embodiment is constructed as described above, and the tray 21 is moved out of the cabinet 1 by the control of the tray loading/unloading motor 41, the disk 20 is placed on the disk mounting surface 21a of the tray 21, and the disk 20 is lifted and supported by the disk holder 22. At the same time, by reversing the motor 41, the tray 21 is moved onto the chassis 2, and the tray 21 is stored in the set position, so that the tray loading/unloading gear 35 freely rotates, and the grooved cam 44 pushes the lifting pin 43, causing the chuck arm 28 to move. The disk 20 is sandwiched between the chuck plate 27 and the lower turntable 5. When the chuck arm 28 descends from the solid line state in FIG. 6 to the imaginary line state, the swing pin 49 moves from the solid line state to the imaginary line state in FIG. The lever 48, which is always locked on the side, is connected to the elongated hole 47 and the screw 4 with the screw 45 as the fulcrum from the solid line state in FIG.
6, the guide arm 50 is swung counterclockwise and displaced to the virtual line state, and by the displacement of the lever 48, the lower surface of the guide arm 50 is moved against the disk holder 22.
By pushing the shaft 51 downward with the inclination of the arm 50, the tip of the disk holder 22 is lowered against the spring 26 at the base end, and the holder 22 is separated from the disk 20. to complete the installation of the disk 20. When the disk holder 22 is lowered, the opening 53 of the holder 22 engages with the lock pin 52 on the upper surface of the chassis 2, thereby preventing the tray 21 from moving in and out direction. Then, the turntable motor 3 is driven to rotate the turntable 5, and each gear 10, 15, 1
The pedestal 7 is reciprocated by the forward and reverse rotation of the pick-up motor 12 via the pick-up 7, and the pick-up 6 is linearly moved in the radial direction with respect to the turntable 5 that supports the disk 20. The pick-up 6 reads the recording signal of the disk 20. It is something to be regenerated.

When installing the chassis 2 in the cabinet 1, the through hole 56 of the tray 21 is located above the boss 54 of the chassis 2, and the holes 56, 57 of the tray 21 and the chuck arm 28 or the holes 56 of the tray 21 are
Attach the screw 58 from the top side through the boss 5.
The boss 54 is supported by the cabinet 1 via a cushion rubber 55 which is engaged with the lower end of the boss 54.

"Effects of the Invention" As is clear from the above embodiments, the present invention includes a chassis 2 and a disk 20 that slides on the chassis 2.
a tray 21 for storing and discharging disks, a disk holder 22 that supports the center of the disk 20 on the upper surface of the tray 21 when storing and discharging the disk, and a chuck arm 28 that starts moving downward at the storage end of the tray 21.
and a turntable 5 that clamps the disk 20 between the chuck arm 28 and the chuck arm 28 by lowering the chuck arm 28.
A holder opening/closing lever 48 is provided which contacts the disk holder 22, and is linked to the downward movement of the chuck arm 28 to move the disk holder 22 toward the disk 2.
By connecting the chuck arm 28 and the disk holder 22 with the holder opening/closing lever 48, the shape of the chuck arm 28 can be simplified and made more compact than in the past. It is possible to eliminate the conventional problem in which the structure and the mounting position of the disk holder 22 are mutually restricted, and the shape of the disk holder 22 and its mounting structure can be easily simplified, and the tray 2
This provides practical effects such as simplifying the disk 20 support structure such as the chuck arm 1 and the chuck arm 28 and making it highly functional.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view showing an embodiment of the present invention;
Figure 2 is a bottom view of the same, Figure 3 is a plan view of the tray, Figure 4 is a bottom view of the same, Figure 5 is an explanatory diagram of the pick-up motor installation, Figure 6 is an explanatory diagram of the catch arm installation,
FIG. 7 is an explanatory diagram of the holder opening/closing lever attachment, FIG. 8 is an explanatory diagram of the disk holder attachment, and FIG. 9 is an explanatory diagram showing the chassis support structure. 2...Shasi, 5...Turntable, 20
...disc, 21 ... tray, 22 ... disk holder, 28 ... chuck arm, 48 ... holder opening/closing lever.

Claims (1)

[Scope of utility model registration request] a chassis 2, a tray 21 that slides on the chassis 2 and stores and discharges the disk 20, a disk holder 22 that supports the center of the disk 20 on the top surface of the tray 21 during storage and discharge, and a storage end of the tray 21. In the disk mounting device for a disk player, the chuck arm 28 and the disk holder are provided with a chuck arm 28 that starts moving downward at a point where the chuck arm 28 starts moving downward, and a turntable 5 that clamps the disk 20 between the chuck arm 28 and the chuck arm 28 by the downward movement of the chuck arm 28. 22. A disk mounting device for a disk player, characterized in that a holder opening/closing lever 48 is provided in contact with the chuck arm 22, and the disk holder 22 is moved away from the disk 20 in conjunction with the downward movement of the chuck arm 28.