JP2002269882A - Disk loading mechanism preventing two-disk insertion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk loading mechanism preventing two-disk insertion without a disk being clamped by members inside a case body in whichever direction the disk is inserted from a disk insertion port when another disk is already mounted on a reproducing position. SOLUTION: This disk loading mechanism clamps the disk by a disk guide 2a and a disk carrying roller 6 freely rotatably supported by a disk carrying roller supporting member 4 freely turnably supported by a disk reproducing part chassis 2 and carries the disk between the outside of the case body and the reproducing position by the rotation of the disk carrying roller 6. The disk carrying roller supporting member 4 is made to support the disk carrying roller 6 on a disk insertion direction side from a turning center shaft 5, and projection parts 4a and 4b for the two-disk insertion prevention are provided on both of a disk carrying path side and the opposite side of a disk carrying path at a tip part on a disk entrance side from the turning shaft center 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk loading mechanism, and more particularly to a disk loading mechanism for inserting a disk between a disk transport roller and a disk guide and feeding the disk by rotating the disk transport roller. .

[0002]

2. Description of the Related Art An example of a conventional disk loading mechanism for transporting a disk by a disk transport roller will be described with reference to FIGS. The disk reproducing unit chassis 2 shown in FIG. 2 and FIG.
It is supported in a floating state. A disk motor (not shown) is fixed to the disk reproducing unit chassis 2, and an optical pickup (not shown) is movably supported. A turntable 7 is fixed to the rotating shaft of the disk motor.

The disk transport roller support member 4 is rotatably supported by the disk reproducing unit chassis 2 via a shaft 5. In FIGS. 2 and 3, the tip of the disk transport roller support member 4 on the right side of the shaft 5 is the disk transport roller 6.
Is rotatably supported, and a convex portion 4a is formed upward at the left end.

A disk guide 2a disposed above the disk transport roller 6 is fixed to the disk reproducing unit chassis 2. The disk transport roller support member 4 is urged by a spring (counterclockwise) so that the disk transport roller 6 approaches the disk guide 2a, but is also driven clockwise by a drive mechanism (not shown). The disk transport roller 6 is driven to rotate by a drive mechanism (not shown).

A panel 8 is fixed in front of the external chassis 1, and the panel 8 is provided with a disk insertion slot 8a. When the disc 9 is inserted from the disc insertion slot 8a as shown in FIG.
a and the disk transport roller 6. When a switch (not shown) detects that the disk 9 has been inserted, the disk transport roller 6 is driven to rotate clockwise, and the disk 9 is transported above the turntable 7.

When a switch (not shown) detects that the disk 9 has been transported to a predetermined position above the turntable 7, the rotation of the disk transport roller 6 is stopped, and
The disk transport roller support member 4 is rotated clockwise as shown in FIG. 3, and the disk transport roller 6 is separated from the disk 9. Then, the disk 9 is clamped to the turntable 7 by a clamper (not shown), and the disk 9 is brought into a disk reproducing state. At this time, the disk transport roller support member 4
The convex portion 4a moves upward, and blocks the moving path of the disk 9.

[0007]

In the above-described conventional disk loading mechanism, the projection 4a of the disk transport roller support member 4 blocks the disk movement path during disk loading during disk playback, but the disk is directed downward from the disk insertion port 8a. When the disc is inserted into the disc transport roller support member 4, the disc can be inserted into the space above the disc reproducing unit chassis 2 below the disc transport roller support member 4. And the disk reproducing unit chassis 2 to prevent the disk from being caught or damaged.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object the purpose of setting the direction of a disc from a disc insertion slot when the disc is mounted at a reproduction position. An object of the present invention is to provide a disc loading mechanism that prevents two discs from being inserted so that the discs are not pinched by members inside the housing even when inserted.

[0009]

According to the present invention, there is provided a disc loading mechanism for preventing insertion of two discs, comprising a disc transport roller rotatably supported by a disc transport roller supporting member rotatably supported by a disc reproducing unit chassis. A disk loading mechanism for sandwiching a disk between a disk guide and a disk guide and transporting the disk between the outside of the housing and the reproduction position by rotation of the disk transport roller, wherein the disk transport roller support member has a disk insertion direction side with respect to a rotation center axis. And the disk transport roller is supported, and two insertion preventing protrusions are provided at both the disk transport path side and the opposite side of the disk transport path at the tip of the disk entrance side from the rotation center axis.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk loading mechanism according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a partial cross section of a disk loading mechanism according to an embodiment of the present invention. In the figure, parts having the same functions as those shown in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 1, a convex portion 4a extending upward is provided at the distal end of the disk transport roller supporting member 4 in the same manner as the conventional one, and a convex portion 4b extending downward is further provided. Is provided. FIG. 9 shows a reproduction state of the disk 9, and at this time, the moving path at the time of loading the disk 9 is closed by the convex portion 4a, and insertion of two disks is prevented.

In this state, even if the disk 9 is inserted downward from the disk insertion opening 8a, the disk 9 is blocked by the convex portion 4b extending downward, and the disk 9 is interposed between the disk transport roller support member 4 and the disk reproducing unit chassis 2. It will not be pinched.

[0013]

According to the disc loading mechanism of the present invention, when the disc is loaded at the playback position, the disc is inserted into the member inside the housing regardless of the direction in which the disc is inserted from the disc insertion slot. The disk is prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a side view showing a partial cross section of a disk loading mechanism according to an embodiment of the present invention.

FIG. 2 is a side view showing a partial cross section of an example of a conventional disk loading mechanism.

FIG. 3 is a side view showing a partial cross section in another state of the example of the disc loading mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 External chassis 2 Disc reproduction | regeneration part chassis, 2a Disk guide 3 Vibration-proof mechanism 4 Disk conveyance roller support member, 4a, 4b convex part 5 axis 6 Disk conveyance roller 7 Turntable 8 Panel, 8a Disk insertion slot 9 Disk

Claims (1)

[Claims] 1. A disk is sandwiched between a disk transport roller rotatably supported by a disk transport roller support member rotatably supported by a disk reproducing unit chassis and a disk guide, and the disk is rotated by the disk transport roller to form a housing. In a disk loading mechanism for transporting between the outside of the body and a reproduction position, the disk transport roller support member supports the disk transport roller in a disk insertion direction side with respect to a rotation center axis, and has a disk entrance with respect to the rotation center axis. A disc loading mechanism for preventing the insertion of two discs, wherein a protrusion for preventing insertion of two discs is provided on both the disc transport path side and the opposite side of the disc transport path at the front end of the disc loading mechanism.