JP2534452Y2 - Clamp mechanism of disk autochanger device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a clamp mechanism of a disc autochanger device for positioning a desired disc carried into a playing section on a turntable for playing.

[Prior Art] With the spread of CDs (compact disks), analog records, cassette tapes, etc., which have been used up to now, have been considerably replaced by disks. Also, in karaoke apparatuses, cassette tapes have been mainly used until now, but are gradually being replaced with disks.

In this way, in a karaoke machine that uses discs as software, 100 or more discs are prepared in the tray section to meet the needs of customers, and the disc containing the song is selected and played by the autochanger device according to the song selection. The loading is performed using a loading mechanism. After the disc carried into the playing section is positioned on the turntable by the clamp mechanism, the disc is optically scanned by the pickup to start playing.

In such a conventional clamping mechanism, positioning is performed by pressing a disc against a turntable by a clamper.

[Problems to be Solved by the Invention] With the conventional clamping mechanism, it is difficult to reliably clamp a disk, and a clamping error often occurs. This tendency is particularly large when the disk is clamped in a vertical state.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a clamp mechanism of an autochanger device capable of securely clamping a disk.

[Means for Solving the Problems] In this invention, a clamper for clamping a disc is
The pantograph held close to and separated from the turntable and the operation of the close separation of the pantograph is interlocked with the operation of the opening and closing means for opening the disk pocket supporting the disk so as to be in a non-contact state from the disk. 4 is a clamp mechanism of the configured disk autochanger device.

The detailed configuration is as follows. In a clamp mechanism of a disc auto changer device which presses a disc set in a disc pocket by a disc guide from this side with a clamper to position the disc on a turntable, after the disc starts to contact the turntable. Opening and closing means for opening the disk pocket supporting the disk so as to be in a non-contact state from the disk,
And a frame is arranged facing the turntable,
The clamper is fixed to the frame and attached to the pantograph side which is close to and separated from the turntable, and further connected so that the operation of the opening / closing means is interlocked with the operation of the close distance of the pantograph. It is a clamping mechanism of a disk autochanger device which is a feature.

[Operation] When the side of the disk is pressed by the clamper and positioned on the turntable while the lower end of the disk is supported by the disk pocket, the disk pocket starts to be opened when the disk comes into contact with the turntable. As a result, the disc is brought into a non-contact state with the disc pocket, so that the disc is securely clamped.

In addition, the proximity of the clamper to the turntable is performed using a pantograph without using a large space, and in addition, the opening and closing means is connected to the pantograph so that the operation is interlocked, so that both means are linked. It can be configured with fewer members as compared with the case including the associating means.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an arrangement before clamping of a clamp mechanism of an autochanger device of the present invention. Reference numeral 15 denotes a pantograph which is horizontally expandable and contractible with a shaft 15a as a fulcrum.
One end is fixed to a frame 16 and the other end is provided with a clamper 18 via a clamp case 17. A turntable 19 is arranged at a position facing the clamper 18.

The disc 13 carried into the playing section by the loading mechanism is located at a position between the clamper 8 and the turntable 19 with the lower end supported by the disc pocket 9. The disk pocket 9 is configured by combining a fixed piece 9a and a movable piece 9b, and both are attached to the base plate 20. The base plate 20 is fixed to the pantograph 15 via a shaft 21, and is movable in the horizontal direction in accordance with the expansion and contraction operation of the pantograph 15. Movable piece 9b is axis 22
When the base plate 20 moves rightward in the figure and the lower end of the movable piece 9b contacts the fixed shaft 23, the base plate 20 falls down around the shaft 22 as a fulcrum. At this time, the disc pocket 9 is opened.

That is, the opening / closing means for opening the disk pocket 9 so as to be out of contact with the disk 13 is mainly composed of the base plate 20, the fixed shaft 23 and the movable piece 9b. Further, the pantograph 15 and the base plate 20 constituting the opening / closing means are connected via a shaft 21 so that the operations of the both are linked.

The upper end of the disc 13 is guided in a non-contact state by an inverted U-shaped disc guide 3 attached to the loading mechanism, thereby preventing the disc 13 from falling down.

Next, the operation of the clamp mechanism of this embodiment will be described.

When the disc 13 is loaded into the disc pocket 9 in the playing section by the loading mechanism as shown in FIG. 1, the pantograph 15 is in a contracted state. When a performance start operation is performed, a motor (not shown) is driven, and the pantograph 15 starts to extend with the axis 15a as a fulcrum.

When the pantograph 15 gradually extends and the clamp case 17 comes into contact with the disk guide 3 as shown in FIG. 2, the disk guide 3 is pushed by the clamp case 17 and moves rightward in the figure. At this time, since the base plate 20 also moves together with the pantograph 15, the disc pocket 9 attached to the base plate 20 also moves rightward,
The disc is moved toward the turntable 19. At this time, the state where the upper end of the disk 13 is guided in the disk guide 3 in a non-contact manner is maintained. Further, the lower end of the movable piece 9b starts to contact the fixed shaft 23.

When the pantograph 15 further extends and the clamper 18 presses the disk 13 to reach the position where the disk 13 contacts the turntable 19 as shown in FIG. 3, the lower end contacts the fixed shaft 23 at the position shown in FIG. Since the movable piece 9b of the disc pocket 9 is tilted rightward by the fixed shaft 23, the lower end of the disc 13 is not in contact with the disc pocket 9. Also at this time, the upper end of the disk 13 moves rightward following the disk 13 by the disk guide 3 being pressed by the clamp case 17. As a result, the clamping operation is completed, and the disc 13 is positioned on the turntable 19. In this state, the disc 13 does not contact the disc pocket 9 and the disc guide 3, so that the performance is not hindered.

Subsequently, a pickup (not shown) comes close to the disk 13 and starts playing by optically scanning the surface of the rotating disk 13.

After the performance, the opposite operation is performed to release the clamped state. First, the pantograph 15 starts to contract gradually with the shaft 15 as a fulcrum by the motor. As a result, when the clamper 18 moves to the left in the drawing and retreats to the position shown in FIG. 2, the movable piece 9b of the disc pocket 9 closes again, so that the disc 13 can Moved to Subsequently, when the pantograph 15 contracts as shown in FIG. 1, the disc 13 returns to the state where it has been initially carried into the playing section. Therefore, by being carried out by the loading mechanism, the disc 13 is stored in the tray again.

As described above, according to the embodiment of the present invention, the support state of the disk pocket 9 is released when the disk 13 comes into contact with the turntable 19, so that the disk 13 can be reliably clamped. Also, when releasing the clamp, the disc pocket 9 closes again and the lower end of the disc 13 is supported, and then the clamper 18 separates, so that the disc 13 does not come off from the disc guide 3 and a series of operations from loading, clamping, playing and unloading. Will be performed. Therefore, since the disk 13 does not fall down, a reliable clamping operation is performed.

In addition, since the clamper 18 is separated from the turntable 19 by using the pantograph 17, only the space required for arranging and operating the pantograph 17 is required, so that the entire apparatus can be made compact and large-scale means can be obtained. Since no space is used, the required space can be reduced. Similarly, the opening / closing means is connected to the pantograph 17 so that the operation thereof is linked, so that the opening / closing means can be constituted by fewer members as compared with a case in which means for associating the two means are separately provided. Overall compactness has been obtained. In particular, when the disc player houses a large number of discs, for example, 100 or more,
Increasing the size of the entire apparatus becomes a more serious problem, and thus the downsizing of the entire apparatus has a greater effect.

[Effects of the Invention] As described above, according to the present invention, since the periphery of the disk is brought into a non-contact state and positioned on the turntable, the disk can be reliably clamped.

[Brief description of the drawings]

FIGS. 1 to 3 are side views showing the manner in which the disk is gradually positioned on the turntable by implementing the clamp mechanism of the disk autochanger device of the present invention. 3 ... Disc guide, 9 ... Disc pocket, 9a ...
… Movable piece, 13… disk, 15 …… pantograph, 17…
... clamp case, 18 ... clamper, 19 ... turntable, 23 ... fixed shaft.

Claims (1)

(57) [Scope of request for utility model registration] 1. A clamping mechanism of an automatic disc changer device which presses a disc set in a disc pocket by a disc guide from a side surface thereof with a clamper to position the disc on a turntable. Opening / closing means for opening the disk pocket supporting the disk so as to be in a non-contact state from the disk is provided, and a frame is provided facing the turntable, and the clamper is fixed to the frame. Characterized in that it is attached to a pantograph side which is close to and separated from the turntable, and further connected so that the operation of the opening / closing means is interlocked with the operation of the close separation of the pantograph. .