JPH0650855Y2 - Disc loading device for optical disc player - Google Patents

Description

The present invention relates to a disc loading device for an optical disc player, and more particularly to a disc loading device for an optical disc player in which a disc tray and a signal recording / reproducing unit are driven by a single motor. .

[Prior Art] An optical disc player using a conventional disc tray mounts an optical disc on a disc tray protruding outside the housing,
The disc tray is slid into the housing to transfer the optical disc onto the turntable, and the signal recording / reproducing unit holding the turntable is raised to clamp and reproduce the optical disc.

In the disc loading device of such an optical disc player, the disc tray and the signal recording / reproducing unit are driven by separate motors.

[Problems to be Solved by the Invention] In the above-mentioned conventional device, since the disc tray and the signal recording / reproducing unit are driven by separate motors, each transmission mechanism is required, and the device becomes large, and the cost is reduced. It had the drawback of becoming expensive.

Further, there is a problem in that a mechanism for interlocking the disc tray and the signal recording / reproducing unit is required so that the one does not move when the other is driven so as not to interfere with the signal recording / reproducing unit.

The present invention was made in view of the above points,
It is an object of the present invention to provide a disc loading device for an optical disc player in which a disc tray and a signal recording / reproducing unit are driven by a single motor in a fixed order.

[Means for Solving the Problems] A disk loading device for an optical disk player according to the present invention is a disk tray for mounting an optical disk and transferring it between the outside of a housing and a turntable, and a signal recording holding a turntable and the like. In a disc loading device of an optical disc player for driving a reproducing unit, a slider having a cam engaging with a cam follower provided in the signal recording / reproducing unit is supported by a chassis so as to be slidable in a direction orthogonal to a disc tray moving direction. Then, an L-shaped guide extending in the disc tray movement direction and the slide movement direction is provided on the disc tray, and an engaging member that engages with the L-shaped guide is provided upright on the slider, and the L-shaped guide is provided on the disc tray. A rack formed on the outer peripheral side of the L-shaped guide is provided in parallel with the L-shaped guide, and is engaged with the rack. In this structure, a matching gear is rotatably supported by the slider, and the gear is rotationally driven by a motor.

[Operation] According to the disc loading device of the optical disc player of the present invention, the engaging member erected on the slider engages with the portion of the guide of the disc tray extending in the slider moving direction which is a direction orthogonal to the disc tray moving direction. When the gear supported by the slider meshes with the portion of the disk tray rack extending in the slider movement direction, the slider reciprocates due to the forward and reverse rotation of the gear, and the cam provided on the slider causes signal recording / reproduction. Move the part up and down. At this time, the disc tray is stationary by being restricted by the engaging member of the slider, and is in a position where the optical disc is transferred onto the turntable.

When the slider moves to the end of the moving stroke in the direction of lowering the signal recording / reproducing portion, the engaging member erected on the slider engages with the portion of the guide of the disc tray extending in the disc tray moving direction, and the gear supported by the slider is engaged. Engages with a portion of the rack of the disc tray extending in the disc tray movement direction, and the disc tray reciprocates by the forward and reverse rotations of the gears, ejects the disc out of the housing, and transfers it onto the turntable. At this time, the engaging member of the slider is regulated by the guide of the disc tray and is stationary, and the slider is at the position where the signal recording / reproducing unit is lowered.

[Embodiment] A disk loading device of an optical disk player according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view showing the same embodiment, and FIG. 3 is an exploded perspective view showing the same embodiment.

In the figure, 1 is a motor, which is fixed to a chassis 2. A pulley 3 is fixed to the rotation shaft of the motor 1.

The shaft 4 is erected on the chassis, and the pulley 5 and the pulley 5
The gear 5a integrally formed with the gear is rotatably supported.

A belt 6 is stretched between the pulley 3 and the pulley 5.

The shaft 7 is erected on the chassis and rotatably supports the gear 8. The gear 5a and the gear 8 are in mesh with each other.

Reference numeral 9 denotes a slider, which is slidably supported on the chassis in the direction A shown in the drawing.

The shaft 10 erected on the slider 9 has an arm 11 and gears 15a and 15b.
Also, the engaging member 15c is rotatably supported. Gear 15
The a and 15b and the engaging member 15c are integrally formed.

A shaft 12 erected on the arm 11 rotatably supports a gear 14 that meshes with a gear 15a.

A portion of the shaft 12 that extends below the protrusion of the arc-shaped guide groove 9b provided on the slider 9, and the shaft 12 guides the rotation of the arm 11.

A coil spring 13 is hooked between a spring hook 11a provided on the arm 11 and a spring hook 9c provided on the slider 9, the arm 11 is biased clockwise, and the gear 14 is also meshed with the gear 8. .

Reference numeral 21 denotes a disc tray, which is supported by the chassis so as to be movable in a direction perpendicular to the moving direction of the slider 9.

A guide 19 extending in the disc tray movement direction and the slider movement direction is fixed to the disc tray 21, and an engaging member 15c is engaged with the guide 19.

A rack 20 extending in the disc tray movement direction and the slider movement direction is fixed to the disc tray 21, and the gear 15a meshes with the rack 20.

Reference numeral 16 denotes a signal recording / reproducing unit chassis, on which shafts 16a and 16b erected are rotatably supported by the chassis.

Cam followers 16a, 16a provided upright on the front surface of the signal recording / reproducing unit chassis 16 are engaged with Z-shaped cam grooves 9a, 9a provided on the side surface of the slider 9.

The signal recording / reproducing unit chassis 16 holds a spindle motor, and the turntable of the spindle motor has a turntable.
17 is stuck.

An optical pickup 18 is slidably supported by the signal recording / reproducing unit chassis 16 and is driven in the radial direction of the turntable by a driving mechanism (not shown).

The spindle motor, the optical pickup, etc. constitute the signal recording / reproducing unit 22.

The embodiment is configured as described above, and its operation will be described below.

As shown in FIG. 5, when the engaging member 15c is engaged with the portion of the guide 19 extending in the disc tray movement direction,
The slider 9 has moved to the left,
The signal recording / reproducing section 22 is rotated downward by the cam grooves 9a, 9a.

At this time, when the motor 1 is rotated clockwise, the rotation of the motor is such that the pulley 3, belt 6, pulley 5, gear 5a, gear 8 and gear 1
4, transmitted to the gear 15a and the gear 15b in the direction of the arrow shown.

Disc tray 21 holding a rack 20 that meshes with gear 15b
Is sent in the direction B shown in the figure and protrudes from the housing.

When the optical disk is placed on the disk tray 21 protruding from the housing and the motor 21 is rotated counterclockwise, the disk tray 21 is sent in the direction opposite to the arrow B direction and the optical disk is transferred above the turntable 17. .

After that, when the motor 3 is further rotated counterclockwise,
As shown in FIG. 4, the engaging member 15c engages with the portion of the guide 19 extending in the slider movement direction, the slider is sent to the right, the signal recording / reproducing unit 22 is raised, and the optical disk is a turntable. It is clamped by 17 and a clamper (not shown) to be in a reproducing state.

At this time, the disc tray 21 is in a state in which its movement is blocked because the engagement member 15c is engaged with the portion of the L-shaped guide 19 extending in the slider movement direction.

When the motor is rotated in the reverse direction after reproducing the optical disk, the operation reverse to the above is performed, and the disk tray is projected outside the housing after the signal recording / reproducing unit 22 is moved downward.

Although the embodiment is configured as described above, the invention is not limited to this. For example, if the motor 1 is fixed to the slider 9, a transmission mechanism for giving rotation from the motor 1 to the gear 15b meshing with the rack of the disc tray is simple. It is also possible to have a different configuration.

[Effect of the Invention] According to the disk loading device of the optical disk player of the present invention, since the disk tray and the signal recording / reproducing unit are driven by one motor, the mechanism is simple and compact, and the cost is reduced.

Further, since the disc tray and the signal recording / reproducing unit are operated by a series of operations of the drive mechanism, their movements are smooth.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view showing the same embodiment, FIG. 3 is an exploded perspective view showing the same embodiment, and FIGS. 4 and 5 are the same embodiment. It is a schematic plan view explaining the action of. 1 ... Motor, 2 ... Chassis, 3 ... Pulley, 4 ...
Shaft, 5 ... Pulley, 5a ... Gear, 6 ... Belt, 7 ...
Shaft, 8 ... Gear, 9 ... Slider, 9a ... Cam groove, 10 ...
… Axis, 11 …… Arm, 12 …… Axis, 13 …… Coil spring, 14
...... Gear, 15a, 15b …… Gear, 15c …… Engagement member, 16 ……
Signal recording / playback chassis, 16a ... Cam follower, 17 ...
… Turntable, 18… Optical pickup, 19… L-shaped guide, 20… Rack, 21… Disc tray, 22…
… Signal recording / playback unit.

Claims (1)

[Scope of utility model registration request] 1. A disc loading device for an optical disc player, which drives a disc tray for placing an optical disc thereon and transporting it between the outside of a housing and a turntable, and a signal recording / reproducing section holding a turntable and the like. A slider having a cam that engages with a cam follower provided in the signal recording / reproducing unit is supported on the chassis so as to be slidable in a direction orthogonal to the disc tray moving direction, and the disc tray is moved in the disc tray moving direction and the slide moving direction. An L-shaped guide extending in the direction of the L-shaped guide, an engaging member that engages with the L-shaped guide is provided upright on the slider, and the outer peripheral side of the L-shaped guide is parallel to the L-shaped guide on the disc tray. A rack formed on the slider, a gear meshing with the rack is rotatably supported by the slider, and the gear is driven to rotate by a motor. A disc loading device for an optical disc player, which is configured as described above.