JPH0339348B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disk conveying device for conveying an information recording/reproducing disk to a predetermined performance position.

In an auto-loading disk player such as a slot-in record player, for example, a pair of upper and lower rollers inserts an information recording/reproducing disk into an approximately rectangular disk insertion slot extending approximately horizontally provided on the front panel. A disk transport device is often provided that is configured to grip the disk almost horizontally and transport it only in one direction.
In a disk player equipped with such a conventional disk transport device, a relatively small-diameter disk such as a 17 cm disk is placed at either end of the disk insertion slot, that is, in a direction parallel to the recording surface of the disk and perpendicular to the insertion direction. Unless a centering device with a complex structure is separately provided so that the centering of the disc and turntable is automatically performed even when the disc is inserted from a biased position, or the disc is not inserted approximately in the center of the disc insertion slot. It is necessary to configure the control circuit of the disk transport device so that the disk transport operation does not start, and if a centering device is provided, the number of parts increases and the operation time of the transport operation becomes longer. Ta. Also,
If the conveying operation is not activated unless the disk is inserted approximately in the center of the insertion slot, the user has to be careful when inserting the disk, resulting in an inconvenience in terms of ease of use.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a disk conveying device with a simple structure that can automatically convey a disk to a predetermined performance position even if the disk is inserted from a position parallel to the recording surface of the disk and at right angles to the insertion direction. It is to provide.

The disk transport device according to the present invention includes a driving means for driving the disk so that the disk moves in a predetermined direction, and a driving means for driving the disk so that the other end thereof can come into contact with a side surface of the disk. a differential mechanism having first and second longitudinal members movably supported and biased in a direction in which the one ends thereof approach each other; and a differential member that moves in accordance with a difference in the amount of rotation of the longitudinal members; , and is configured to change the disk driving direction of the driving means in accordance with the amount of movement of the differential member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a chassis of an autoloading disk player that automatically loads an information recording/reproducing disk inserted into a disk insertion slot. The chassis 1 is, for example, a housing 2
It is attached via an elastic body (not shown) such as rubber. A front panel 2a forming a part of the housing 2 is provided with a substantially rectangular disk insertion opening 2b extending substantially horizontally. A turntable 3 is placed approximately in the center of the chassis 1. In addition, the disk insertion slot 2 of this chassis 1
Near both ends of b, one end of each of guide plates 4 and 5 as first and second longitudinal members is rotatably supported by shafts 6 and 7, respectively. The guide plates 4 and 5 are biased by springs or the like in a direction in which their respective other ends approach each other. The guide plates 4 and 5 are each provided with elongated holes 4a and 5a extending from approximately the center toward the shafts 6 and 7, respectively. Each of the elongated holes 4a and 5a has a substantially L-shaped rack 8 as a first and second moving member.
and shafts 10 and 11 implanted at one end of each of 9.
are inserted through each of them. Each of the racks 8 and 9 has a long hole 8a extending from the other end toward the center.
and 9a are provided. This long hole 8a
and 9a, respectively, are inserted with shafts 12 and 13, which are implanted in a board (not shown) fixed to the housing 2 so as to be substantially parallel to the chassis 1, for example. The diameters of the tips of the shafts 12 and 13 are larger than the widths of the elongated holes 8a and 9a. By these shafts 12, 13 and 10, 11, the racks 8 and 9 are supported substantially parallel to each other and slidably. The racks 8 and 9 are both engaged with a pinion 14 as a differential member on their opposing sides. The shaft of the pinion 14 is rotatably supported by a slide plate 15. The slide plate 15 has elongated holes 15a, 1 extending from both ends toward the center.
5b is provided. Each of the elongated holes 15a and 15b has a shaft 1 installed in the board (not shown).
6 and 17 are inserted. Axis 16, 17
The diameter of the tip is larger than the width of the elongated holes 15a and 15b. The slide plate 15 is slidably supported by the shafts 16 and 17. Slide plate 1
5 has a pin 18 implanted therein. The pin 18 is a substantially rectangular notch 19a extending from one end of the rotating table 19 made of a substantially rectangular plate toward the other end.
is engaged in. A shaft 20 is installed on a line parallel to the long side of a substantially rectangular notch 19a of the rotary table 19 and passing through the center of the short side. The shaft 20 is rotatably supported by the board (not shown). The rotary table 19 is rotatably supported by this shaft 20.
A motor 21 is fixed to one end of the rotary table 19. A pulley 22 is fixed to the output shaft of the motor 21. The rotational driving force of the motor 21 is transmitted to the pulley portion 24a of the roller 24 via the pulley 22 and belt 23. The roller 24 is connected to the shaft 25
is fixed to. Holding parts 19b and 19c are provided at both ends of the shaft 25 at the center of both sides of the rotary table 19 so that the rotation axis of the shaft 25 is substantially perpendicular to a vertical plane including a straight line parallel to the extending direction of the notch 19a.
It is rotatably supported. And roller 2
4, together with a lower roller (not shown) provided on the chassis 1, clamps the disk inserted from the insertion opening 2b and drives it in substantially the same direction as the direction in which the notch 19a extends.

Note that 26 and 27 are guide pins. The guide pins 26 and 27 are arranged, for example, by a guide pin position setting mechanism (not shown) at a position where the distance from the rotation center of the turntable 3 is equal to the radius of the disk. The guide pin position setting mechanism (not shown) moves the guide pins 26 and 27 by a guide pin position setting switch (not shown) provided on the front panel 2a and operated according to the size of the disk. I'm starting to let them do it.

In the above configuration, when the disk is inserted from a predetermined position, that is, from approximately the center of the disk insertion opening, the side surface of the inserted disk 28 comes into contact with the mutually opposing surfaces of the guide plates 4 and 5, as shown in FIG. The plates 4 and 5 are rotated by an equal angle from the positions indicated by two-dot chain lines 4' and 5' in a direction in which the other ends of the guide plates 4 and 5 are separated from each other. As each of the guide plates 4 and 5 rotates, each of the racks 8 and 9 moves toward the shaft 1.
0 and 11 are implanted at one end and move away from each other by an equal distance. Then,
The pinion 14 meshing with the racks 8 and 9 rotates counterclockwise, but since the amount of movement of each of the racks 8 and 9 is equal, the position of the pinion 14 does not change and the rotating table 19 does not rotate. become. Therefore, the direction in which the disk 28 is driven by the roller 24, that is, the direction in which the notch 19a of the rotary table 19 extends, passes through the center of the long side of the approximately rectangular disk insertion opening 2b and the rotation axis of the turntable 3, and the disk of the turntable 3 The center of the disk 28 moves along the straight line H, which is parallel to the supporting surface, and the disk 28 is driven to the vicinity of the turntable 3. Thereafter, the disk 28 and the turntable 3 are centered by the action of the guide pins 26 and 27, and the disk 28 is loaded into a predetermined performance position.

Next, when the disk 28 is inserted from a position parallel to the recording surface and perpendicular to the insertion direction, for example, from a downward position in the figure of the disk insertion opening 2b, the disk 28 is inserted as shown in FIG.
is located below the straight line H in the figure that passes through the center of the long side of the insertion slot 2b and the rotation axis of the turntable 3 and is parallel to the disk supporting surface of the turntable 3, and the amount of rotation of the guide plate 5 is The amount of rotation is greater than the amount of rotation. Then, the pinion 14 moves downward in the figure by a distance corresponding to the difference in the amount of movement of the racks 8 and 9, and the rotary table 19 rotates counterclockwise by an angle corresponding to the amount of movement of the pinion 14. Therefore, the direction in which the disk 28 is driven by the roller 24, that is, the direction in which the notch 19a of the rotary table 19 extends is directed toward the upper right in the figure, and the disk 28 is moved toward the upper right in the figure.
Disk 28 so that the center of 8 approaches straight line H.
will be transported. Therefore, as the disk 28 approaches the turntable 3, the disk 2
The center of 8 will now move along straight line H,
The disk 28 is driven close to the turntable 3, and the centers of the disk 28 and the turntable 4 are aligned by the action of the guide pins 26 and 27, and the disk 28 is loaded into a predetermined playing position.

FIG. 5 shows another embodiment of the invention.
In FIG. 5, chassis 1, housing 2, turntable 3, slide plate 15, shafts 16, 17, 2
0, 25, rotary table 19, motor 21, pulley 2
2. Only the main parts except the belt 23 and roller 24 are shown. In this example, one end of each rod 30, 31 as a moving member is rotatably connected to each of the guide plates 4, 5 by shafts 32, 33. At the other ends of the rods 30 and 31 are shafts 35 and 36, respectively, at both ends of a rod 34 as a differential member.
are rotatably connected by. Rod 34
A pin 37 is installed approximately in the center of the hole. This pin 37 is adapted to engage with a notch 19a of the rotary table 19.

In this configuration, when the guide plates 4 and 5 rotate in the direction in which the other ends of the shafts 32 and 5 move away from each other, and the amounts of movement of the shafts 32 and 33 are respectively A and B, the amount of movement C of the pin 37 is expressed by the following equation.

C≒(B-A)/2...(1) As shown in equation (1), the pin 37 of the rod 34, which moves according to the amount of movement of the rods 30 and 31, is connected to the rotating table in the same way as the pin 18 in FIG. 19 notches 19
a, so that the same effect as the device shown in FIG. 1 can be obtained in this example as well.

As described in detail above, in the disk conveying device according to the present invention, each other end is rotatably supported so that one end can come into contact with the side surface of the disk, and the one ends are attached in a direction in which they approach each other. The disk drive direction is changed according to the difference in the amount of rotation between the first and second longitudinal members, so that the disk can be inserted parallel to the recording surface of the disk. Even if a disc is inserted from a position that is biased perpendicular to the direction, it can be automatically transported to the vicinity of the predetermined playing position. can be automatically loaded into a predetermined playing position. Further, since the disk transport device according to the present invention has a simple configuration, the number of parts can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing one embodiment of the present invention, FIG. 2 is a perspective view showing the main part of FIG. 1, and FIG.
The figure is an explanatory diagram of the operation when the disk is inserted from a predetermined position, and Figure 4 is an explanatory diagram showing the state when the disk is inserted from a position parallel to the recording surface of the disk and biased in a direction perpendicular to the insertion direction. An explanatory diagram of the operation shown,
FIG. 5 is a schematic plan view showing another embodiment of the present invention. Explanation of symbols of main parts 4, 5...Guide plate,
8,9...Rack, 14...Pinion, 15...
Slide plate, 19... rotating table, 24... roller,
30, 31, 34... Rod.

Claims (1)

[Scope of Claims] 1. A disk conveying device for conveying an information recording/reproducing disk to a predetermined performance position, comprising: a driving means for driving the disk so that the disk moves in a predetermined direction; and one end of each disk. first and second longitudinal members whose other ends are rotatably supported so as to be able to abut against the side surface of the disk, and whose one ends are biased in a direction toward each other; and the longitudinal member. and a differential mechanism having a differential member that moves according to the difference in the amount of rotation of the disc, and the disk driving direction of the driving means changes according to the amount of movement of the differential member. Disk transport device. 2. The differential mechanism includes a first moving member that moves according to the amount of rotation of the first longitudinal member, and a second moving member that moves depending on the amount of rotation of the second longitudinal member, and 2. The disk conveying device according to claim 1, wherein the member is a pinion that meshes with the first and second moving members. 3. The differential mechanism includes a first moving member that moves according to the amount of rotation of the first longitudinal member, and a second moving member that moves depending on the amount of rotation of the second longitudinal member, and 2. The disk conveying device according to claim 1, wherein the member is a rod whose both ends are rotatably connected to the first and second moving members, respectively.