JP2002312998A - Disk loading mechanism for disk unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk loading mechanism for disk unit in which a blacklash never occurs without energizing a trigger member with a spring in disk clamping. SOLUTION: This disk loading mechanism for disk unit has a stopper 2b for stopping a disk 10 fed to a playing position, the stopper 2b is supported by a clamp arm 1 to be turned by being pushed by the disk 10 so as to turn a trigger member 2 for starting clamp operation around a spindle 2c with respect to the clamp arm 1 and is also turned vertically together with the clamp arm 1, and the spindle provided on one side of the trigger member and a chassis is fit into a hole 2d provided on the other side when the trigger member 2 is turned downward in disk clamping, the point of the spindle is provided with an inclination, and the trigger member 2 is turned so as to separate the stopper from the disk due to the contact of the inclination with the hole in disk clamping.

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 for a disk drive, and more particularly, to a mechanism for holding a trigger member for starting its clamping operation.

[0002]

2. Description of the Related Art An example of a conventional disk loading mechanism of a disk drive will be described with reference to FIGS. The clamp arm 5 shown in FIGS. 5 to 7 is rotatably supported by the chassis 3 and is driven to rotate about a shaft 5a by a driving mechanism (not shown). The trigger member 6 is rotatably supported by the clamp arm 5 via a rotation center axis 6c. The trigger member 6 is rotated about the axis 5a together with the clamp arm 5 and also about the rotation center axis 6c.

That is, the trigger member 6 has an 8 cm CD
The detection shaft 6a and the 12 cm CD detection shaft 6b extend downward, and the 8 cm CD is moved by a feed roller not shown in FIG.
When it is fed upward, the trigger member 6 is rotated from the position indicated by the dashed line to the position indicated by the dashed line.

When a 12 cm CD 10 is fed upward by a feed roller (not shown) in FIG.
The trigger member 6 is rotated from the position shown by the one-dot chain line to the position shown by the two-dot chain line in contact with the D detection shaft 6b. In addition,
When a 12 cm CD is sent, it is sent by a guide (not shown) with the tip inclined downward.
The cmCD does not abut the 8 cmCD detection shaft 6a.

When the trigger member 6 is rotated to the position shown by the two-dot chain line, a clamp trigger mechanism (not shown) is driven, and the clamp arm 5 is directed downward (A in FIG. 6).
Direction). When the clamp arm 5 is rotated downward, the clamper 4 supported at the tip of the clamp arm 5 clamps an 8 cm CD or a 12 cm CD on a turntable (not shown) to enter a reproducing state.

When the clamp arm 5 is turned downward, the trigger member 6 is also turned downward.
At this time, as shown in FIGS. 7 and 8, the boss 6 d provided on the trigger member 6 is pushed by the inclined portion of the protruding member 7 erected on the chassis 3 and moves in the B direction to move the trigger member 6.
Is rotated to the position shown by the solid line in FIG. 5, and the 12 cm CD or the 8 cm CD moves away from the respective detection shafts 6b and 6a. Reproduction is performed in this state. After the end of the reproduction, the clamp arm 5 is turned upward, the disc is ejected, and the trigger member 6 is turned by the clamp trigger mechanism (not shown) to the position shown by the one-dot chain line.

[0007]

In the above-described disk loading mechanism of the conventional disk drive, the trigger member 6 is restricted to the side surface of the projection member 7 at the time of disk clamping, but is restricted in only one direction. When the apparatus vibrates as described above, the play may occur in a direction not regulated by the vibration. It is possible to prevent backlash by urging with a spring,
In that case, there is a problem that the driving load is increased since the driving is performed against the elasticity of the spring.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a disk device which does not rattle even if the trigger member is not urged by a spring when the disk is clamped. It is to provide a disc loading mechanism.

[0009]

A disk loading mechanism of a disk drive according to the present invention has a stopper for stopping a disk sent to a reproducing position, and the stopper is rotated by being pressed by the disk to clamp the disk. A trigger member for starting the operation is supported by the clamp arm so as to rotate substantially horizontally with respect to the clamp arm, and is rotated vertically together with the clamp arm to rotate the trigger member downward during disk clamping. In a disk loading mechanism of a disk device in which a shaft provided on one of a trigger member and a chassis is fitted with a hole provided on the other at the time of movement, a tip is provided at the tip of the shaft, and the abutment between the slope and the hole causes the disk to be closed. The trigger member rotates so that the stopper separates from the disk. It is those, which is configured as.

In the disk loading mechanism, the trigger member is provided with two stoppers for stopping the large-diameter disk and the small-diameter disk, respectively.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk loading mechanism of a disk drive according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a main part of a disk loading mechanism of a disk drive according to an embodiment of the present invention, FIG. 2 is a side view showing a main part of the disk loading mechanism as a partial cross section, and FIG. 4 is a side view showing a partial cross section of another state of the main part of FIG.

The clamp arm 1 shown in FIGS. 1 to 3 is rotatably supported by the chassis 3, and is driven to rotate about a shaft 1a by a drive mechanism (not shown). The trigger member 2 is rotatably supported by the clamp arm 1 via a rotation center shaft 2c. The trigger member 2 is rotated together with the clamp arm 1 around the shaft 1a and the rotation center shaft 2c.
It also rotates around.

That is, the trigger member 2 has an 8 cm CD
The detection shaft 2a and the 12 cm CD detection shaft 2b extend downward, and the 8 cm CD is moved by a feed roller not shown in FIG.
When it is fed upward, the trigger member 2 comes into contact with the 8 cm CD detection shaft 2a and is turned from the position indicated by the dashed line to the position indicated by the dashed line.

When the 12 cm CD 10 is fed upward by a feed roller (not shown) in FIG.
The trigger member 2 is rotated from the position indicated by the one-dot chain line to the position indicated by the two-dot chain line in contact with the D detection shaft 2b. In addition,
When a 12 cm CD is sent, it is sent by a guide (not shown) with the tip inclined downward.
The cmCD does not abut the 8 cmCD detection axis 2a.

When the trigger member 2 is rotated to the position shown by the two-dot chain line, a clamp trigger mechanism (not shown) is driven, and the clamp arm 1 is moved downward (A in FIG. 2).
Direction). When the clamp arm 1 is rotated downward, the clamper 4 supported at the tip of the clamp arm 1 clamps an 8 cm CD or a 12 cm CD on a turntable (not shown) to enter a reproduction state.

When the clamp arm 1 is turned downward, the trigger member 2 is also turned downward.
At this time, as shown in FIGS. 3 and 4, the hole 2d provided in the trigger member 2 is pushed by the inclined portion of the shaft 8 erected on the chassis 3 and moves in the direction B, and the trigger member 2 is moved in the solid line shown in FIG. Turn to the position of 12cmCD or 8cm
The CD moves away from the respective detection axes 2b and 2a. Reproduction is performed in this state. After the end of the reproduction, the clamp arm 1 is turned upward, the disc is ejected, and the trigger member 2 is turned by the clamp trigger mechanism (not shown) to the position shown by the one-dot chain line.

Although the embodiment is constructed as described above, the invention is not limited to this. For example, the trigger member 2 is provided with a shaft having an inclined portion at the tip, and the chassis is provided with a hole for fitting the shaft. You may.

[0018]

According to the disk loading mechanism of the present invention, the trigger member for detecting the end of the disk feed is positioned by fitting the shaft and the hole, so that the trigger member is restricted in all movable directions, and the apparatus can be moved. Even if the trigger member vibrates due to a disturbance, the trigger member does not rattle, no abnormal noise is generated, and the disk reproduction is not adversely affected.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main part of a disk loading mechanism of a disk device according to an embodiment of the present invention.

FIG. 2 is a side view showing a main part of the disc loading mechanism as a partial cross section.

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

FIG. 4 is an enlarged view of a portion A in FIG. 3;

FIG. 5 is a plan view showing an example of a disk loading mechanism of a conventional disk device.

FIG. 6 is a side view showing a main part of the disc loading mechanism as a partial cross section.

FIG. 7 is a side view showing a partial cross section of another state of the main part of the disc loading mechanism.

FIG. 8 is an enlarged view of a portion B in FIG. 7;

[Explanation of symbols]

Reference Signs List 1 clamp arm, 1a shaft 2 trigger member, 2a 8cm CD detection shaft, 2b 1
2cm CD detection axis 2c Rotation center axis, 2d hole 3 Chassis 4 Clamper 5 Clamp arm, 5a axis 6 Trigger member, 6a 8cm CD detection axis, 6b 1
2cmCD detection shaft 6c Rotation center shaft, 6d Boss 7 Projection member 8 Axis 10 12cmCD

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D046 AA12 AA19 CB03 EA14 EB08 FA13 GA02 HA10 5D138 RA05 RA11 SA03 SA16 TC04 TC13

Claims (2)

[Claims] 1. A stopper member for stopping a disc fed to a reproduction position, wherein the stopper member is rotated by being pressed by the disc to start a clamping operation. While being supported by the clamp arm so as to rotate in the vertical direction together with the clamp arm, the shaft provided on one of the trigger member and the chassis is mounted on the other when the trigger member is rotated downward during disk clamping. In the disk loading mechanism of the disk device to be fitted with the provided hole, the tip of the shaft is inclined, and the trigger member is rotated so that the stopper separates from the disk when the disk is clamped by the contact between the inclination and the hole. A disk loading mechanism of a disk device configured to perform 2. The disk loading mechanism according to claim 1, wherein said trigger member has two stoppers for stopping a large-diameter disk and a small-diameter disk, respectively.