JPS6025048A - Automatic loading device for disk - Google Patents

Abstract

PURPOSE:To set and eject a disk in a series of timing operations with the relatively small number of components by driving a mount table which slides forward and backward through gears, and rotating a pressing means which is almost so bent as to have a center cap with a timing pin provided to the gear. CONSTITUTION:Pressure parts 43 and 43 are at upper positions in a feed-out (eject) state, and the 1st tooth of a partial gear 3 engages the 1st teeth of a rack 14. Even when an operator presses part of the front surface or entire surface of the mount table 1 in said state, gears 35 and 35 are rotated by exactly the same extent with a rotating shaft 36 through gears 3 and 3, and 34 and 34 on both sides, and the mount table is stored in a main body without deviating nor slanting. Then when the front end of the mount table 1 is aligned to the front surface of the main body 5 and the mount table 1 moves to a specific position where the center of the disk coincides with that of a turntable 2, the partial gear falls off a rack 14 and timing pins 31 and 31, on the other hand, abuts on rotating pawls 42 and 42 to press down them. Therefore, the pressing means 4 rotates and the pressing parts 43 and 43 press down the base 11 of the mount table 1.

Description

DETAILED DESCRIPTION OF THE INVENTION A) Field of Industrial Application The present invention relates to an automatic disk loading device which has a relatively simple structure and is robust.

Furthermore, the present invention relates to an automatic disk loading device that is applied when a drawer-type mounting table is used to transport the disk in a disk playback device that reads music or the like written on the disk using a laser beam or the like.

Prior Art In conventional so-called drawer-type disk mounting devices, a rack and pinion and a drive motor provided below the loading platform are used to move the disk loading platform, and a loading platform lowering device and/or a driving motor are used to set the disk. Alternatively, a center cap lowering disk clamping device was provided.

That is, when the mounting table protrudes from the main body, the surface of the mounting table is positioned above the turntable,
In response to a set command, the first motor rotates to pull the mounting table into a predetermined position within the main body.

Next, the mounting table is lowered below the turntable, and then, or simultaneously, the center cap is pressed onto the turntable and a second motor or grunger is operated to clamp the disc.

However, these have the following problems. In other words, since multiple drive sources (motors and plungers) are activated for one operation (operation) of loading a disc, many opening/closing means are required to adjust the timing. As a result, the failure rate is high, it is difficult to assemble, and it tends to be expensive.

c) Purpose of the Invention The present invention has been made in consideration of the above-mentioned points, and provides an easy-to-assemble and robust automatic disk loading device for setting and ejecting disks through a series of timing operations using relatively few components. 〇2) Structure of the Invention The present invention uses a gear to drive a mounting table that slides back and forth, and a timing pin provided in the gear to rotate a substantially dogleg-shaped holding device having a center cap. It is something that moves people.

Further, in the present invention, when a partial gear is used in such a mounting device, a meshing protrusion is provided on the partial gear so that the meshing of the first gear is ensured.

Furthermore, the present invention provides a system in which low-speed gears for driving the mounting table are provided on both sides of the mounting table, and the gears are coaxially fixed on both sides so as to rotate integrally on both sides, so as not to cause a failure when the mounting table is pushed in by an operator. It is.

The present invention will be described in detail below based on examples.

E) Embodiment FIGS. 1 to 3 are diagrams of an automatic disk loading device according to an embodiment of the present invention. FIG. 1 (←) is a plan view, FIG.
Figures 3 and 3 show the loading table sending out, loading table retracting, and Figure 3, respectively.
FIG. 1(C) is a cross-sectional view of the disc in a state where the disc can be played, and is an explanatory diagram of the meshing state of the gears.

In the figure, (1) is a disk mounting table that can be slid back and forth, and the base (11) of the mounting table fl is attached to a frame (12) and is biased upward by a spring (1□□□ (131...). When ejecting, it is supported to be higher than the turntable (2), and sliding racks NU are provided below both sides of the frame θ. It is a gear with a timing pin f3n (311), which acts as a partial gear, and a rack (l).
4) meshes with each other. And this gear +31 [31 is 1
It is driven by a plurality of reduction gears (341 (341...+351
1 (35) is equipped with gears ((
5) The field and the rotating shaft (3υ) are fixed coaxially so that they rotate together.

(4) is a pressing means having a dogleg shape on the side, and is made of sheet metal with arms (shape) (pinewood) on both sides, and the reverse bent part of the dogleg shape is pivoted with a shaft rod (47). Also, one end of this presser means L4, that is, the arm part (41) (411) has a rotating claw (42) (42 is a gear (3H31 timing)). It is always arranged within the movement radius of the timing pin (311131) so that it can come into contact with the pin 511 (3B. Also, on both sides of the other end of the holding means (4) there are pressing parts +431 ( 4
3) is provided with a foot, and the other end has a turntable (2) in the center.
A center cap (441) is provided at a position corresponding to the center cap (441).The center cap (441) may be supported by a separate member that operates together with the holding means. 4η is the fulcrum, rotating claw f42 (4
7j timing pin (311c111 contact part is the focus,
The pressing portion +43) +43 serves as the lever of the point of action. In addition, the pressing means (4) is located at the rear of the shaft (47), and the pressing part (4)
31f43+ is normally pulled by a part of the chassis (461) with a spring so that it is located above the mounting table ft).

The operation in the above configuration will be explained. First, in the feeding (eject) state, as shown in Fig. 1, the pushing part +43) (43) is recessed upward, and the first tooth of the partial gear of gear (3) is the first tooth of rack 04). It meshes with the teeth. In this state, even if the operator pushes part or all of the front of the mounting table f1), the gears on both sides will be +31+31 (2) (towards).
The gear (audience (5) rotates at exactly the same amount due to the rotating shaft (to), and the mounting table (1) is stored inside the main body without twisting or tilting. At this time, the left and right If the high-speed side of the reduction gear is used to support the gears coaxially, the load will be heavy on the gears, which is undesirable.

During normal disk loading, a switch (not shown) is operated, so the motor c3z is energized and starts rotating. The rotating shaft of the motor (the rotation of the motor is the reduction gear (
Gear +31 via 341 (to)...(35)...
Since the information is transmitted to F31, the rack 04) is sent to the main body side and the mounting table (11) is stored in the main body.

Then, the tip of the mounting table (1) is aligned with the front surface of the main body (5),
When the mounting table ill moves to a predetermined position where the center of the disk is at the position of the turntable (2), the last tooth of rank α4 is located at the last position of the partial gear of the gear (3), as shown in Fig. 2. It meshes with the teeth. At this time, the timing pin @G1) is located directly above the rotating claw (@(@).Then, as the gear [303) further rotates, the partial gear is disengaged from the rack 04), while the timing pin ( 3
1) 011 comes into contact with the rotating claw 6121 (42) and presses it down. Therefore, the holding means (4) rotates and the pressing part (
431 (43) pushes down the base (11) of the mounting table (1).As shown in FIG. 3, the surface of the base (II) is located below the surface of the turntable (2), covers the top of the turntable (2) and clamps the disk (not shown) between the center cap (441) and the turntable (2), and the rotation of the motor is stopped by a detection means (not shown) such as a limit switch. do.

The above is the loading operation of the disk, but in the ejecting operation, the motor (2) rotates in the reverse direction and performs the opposite operation to that described above.

However, the timing of the start of meshing between the partial gear of the gear (3) and the rack Q41 may be misaligned and failure may occur.

In this case, if there are several gears, use the mounting table (+)
The amount that comes out is small, and if it gets stuck, it won't move, which is not desirable. Therefore, as shown in Figure 4, the gear (3)
At the beginning of engagement with the rack 04), an engagement protrusion (material) that can come into contact with the protrusion 05) provided on the rack θ chrysanthemum or a member such as a claw or frame body (bottom surface) near the protrusion 05) should be provided. Ba,
As the gear (3) rotates, the teeth mesh with each other while pushing the rack (14), ensuring accurate meshing.

(f) Effects of the Invention As described above, the present invention includes a disk mounting table that can slide back and forth, a gear that drives the mounting table and has a timing pin, and a side surface that has a dogleg shape. A disk automatic system having a bending force part supported by a shaft, one end of which is arranged to rotate when it comes into contact with a timing pin of a gear, and the other end of which is equipped with a pressing means having a pressing part that presses down a mounting table. Since it is a mounting device, the structure is simple, and even if the operator pushes the mounting table directly, it will not cause damage, and since the insertion means uses a lever, it can be operated with a small amount of force. The device is robust.

[Brief explanation of the drawing]

1 to 3 are diagrams of an automatic disk loading device according to an embodiment of the present invention, in which FIG. 1 r is a plan view, the first wide mouth (b), and FIGS. 1(C) is an explanatory view of the meshing state of the gears, and FIG. 4 is a front view of the main parts of the gear and the rack. fx)...Placement stand, (n)...Base, ('O...
・Frame, (1 old 1... spring, 0 chrysanthemum 04)... rack (2)... turntable +31+31... gear (for driving the mounting table), +31)
(311...timing pin, (effect...motor, 0
31... (motor) rotation axis, (341 (to)...
(2)... Reduction gear, ('A... Rotating shaft, (3η
...Matching protrusion (4)...Press means, +41) +41)...Arm, (4'lJ (4"lJ...Rotating claw, (41+43)
...Pushing part, (441... Center cap, (45
1... Spring, throat... Shear 7, (4'7)... Axis rod. Broom 2 Figure 3

Claims (1)

[Claims] D. A disk mounting table that can be slid back and forth, and a pusher that drives the mounting table and is arranged to rotate by a gear having a timing pin, and has a pusher at the other end that pushes down the mounting table. An automatic disk mounting device characterized by comprising a presser means having a portion. 2. The end of the valve means that comes into contact with the timing pin is
The automatic disk mounting device according to claim 1, characterized in that the timing pin is always within the movement radius of the timing pin. j The above-mentioned mounting base is provided with a rack that meshes with the gear, the gear is a partial gear, and the part of the partial gear that starts meshing with the rack is in contact with the rack or a member near it. 2. The automatic disc mounting device according to claim 1, further comprising a mating protrusion. a The gears are provided on both sides of the mounting table, and
The gear on one side is driven by a plurality of reduction gears that mesh with the rotating shaft of the motor, and the corresponding gears on both sides of the drive gear of the low speed stage of the reduction gear or the mounting table are fixed coaxially. An automatic disk mounting device according to claim 1.