JP2595387Y2 - Disc player - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk player, for example, a disk player which reproduces a disk loaded on a deck while moving an optical pickup. The optical pickup is inverted by 180 degrees, and selectively switched to one of guide rails provided on both sides of the disc loaded on the deck, and reproduction is performed while moving the optical pickup on the guide rail. The present invention relates to a disc player which is adapted to perform such operations.

[0002]

2. Description of the Related Art A disc player of this type has an optical pickup mounted on a pickup carriage, and the pickup carriage is guided by guide rails located on both right and left sides of the pickup carriage, and one side of the pickup carriage. Is provided with a carriage driving means having a gear train, the gears mesh with rails such as a rack provided along the guide rail, and by the cooperation of both,
The pickup carriage is configured to move along the guide rail, and to switch between the turn carriage and the guide rail.

[0003]

However, when the pickup carriage is switched to the turn carriage, the pickup carriage comes off the guide rail and is supported by the guide on the turn carriage side. Regardless of the change of the transfer, conversely, when changing from the turn carriage to the guide rail, when the carriage is driven by the operation of the carriage driving means, the side provided with the carriage driving means comes first. However, the opposite side may be delayed, and the pickup carriage may be tilted left and right, and the transfer to the guide rail may not be performed smoothly.

The present invention has been made in view of such prior art. By providing a return guide and a return spring member, it is possible to smoothly change over the pickup carriage from the turn carriage to the guide rail. It is another object of the present invention to provide a disc player which is provided with a return function on a side where a movement delay occurs.

[0005]

Therefore, in the present invention,
What is claimed is: 1. A disc player configured to perform reproduction while moving an optical pickup by inverting an optical pickup by a turn carriage, comprising: a pickup carriage on which the optical pickup is mounted; and one side of the pickup carriage. A carriage driving means, a rail provided along the guide rail and cooperating with the carriage driving means, a return guide provided on the other side of the pickup carriage, and the turn carriage corresponding to the return guide. A return spring member provided at the time of switching the optical pickup from the turn carriage to the guide rail, the return spring member is configured to press the return guide toward the guide rail. I have.

[0006]

Therefore, when the optical pickup is transferred from the turn carriage to any one of the guide rails for reproduction, the pickup carriage exiting the turn carriage receives a driving force by the operation of the carriage driving means on one side. However, at the same time, the biasing force of the return spring member acting on the return guide secures the return force on the other side,
It is possible to smoothly transfer to the guide rail without tilting left and right.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. 1 to 11 are views showing one embodiment of a disc player according to the present invention. First, the configuration will be described. 1 to 3, reference numeral 1 denotes a chassis having a substantially U-shape in side view, and a pair of left and right guide rails 2A and 2B are respectively provided on upper and lower extending portions 1A and 1B with a tilt frame 2C. Are connected to each other and integrated. The guide rail 2A is substantially channel-shaped in cross section,
B is a circular section with the support 2D. In addition, extension part 1
A spindle motor 3 is attached to the tip of B, and a rotating shaft 3A has a deck 4 for a disk D.
Is equipped. Then, the objective lens 5A of the optical pickup 5 is positioned to face either side of the disk D loaded on the deck 4, and the optical pickup 5 is mounted so as to move and scan in the radial direction of the disk D. The carriage 6 is guided by any pair of guide rails 2A and 2B. The pickup carriage 6 has a sliding guide hole 6A guided on one side by a guide rail 2B, and a rolling guide wheel 6B guided by the guide rail 2A on the other side. A gear 8A of a gear train of a carriage driving means 8 provided on the pickup carriage 6 meshes with a rack-shaped rail 7 provided on the tilt frame 2C along the guide rail 2B. In this embodiment, the carriage drive means includes a motor 8B capable of switching between forward and reverse rotation as a drive source.

A turn carriage 9 for receiving the optical pickup 5 from the guide rails 2A and 2B is rotatably supported on the chassis 1 via a pivot 10.
In order to receive the pickup carriage 6, the turn carriage 9 is provided with a guide 9A continuously corresponding to the guide rail 2B on one side and another guide 9B on the other side. The turn carriage 9 is turned around a pivot 10 by reversing drive means provided on the chassis 1. That is, the reversing drive means includes a cam drive mechanism (chassis 1 and driven gear 1).
The cam mechanism is provided with a cam groove and a cam pin guided by the cam groove (both are not shown). At the start end and the end, a slight upward and downward movement operation is performed.

On the other side of the pickup carriage 6, a pin-shaped return guide 12 corresponding to the guide 9B is provided.
The turn carriage 9 is provided with a return spring member 13 made of a torsion spring corresponding to the return guide 12. The return spring member 13 winds the coiled portion 13A around a support pin 14 provided on one side of the turn carriage 9,
The one end 13B is engaged with the hook 15, and an arm 13C that slides on the return guide 12 is formed on the other end. When the optical pickup 5 enters the turn carriage 9, the return guide 12 functions as a guide and support member for guiding and supporting one side of the pickup carriage 6 with respect to the guide 9B. When the optical pickup is changed from the optical pickup to the guide rail, it is pushed back toward the guide rail 2A by the elastic force of the return spring member 13.

In this embodiment, the tilt frame 2C is located on both sides, and the chassis 1 is
The guide rails 2A and 2B can be tilted (inclined) within a regulation range of about 1 to 2 degrees, for example, and are horizontal (parallel to the disk surface) during reproduction. When the pickup carriage 6 is moved to the turn carriage 9 together with the optical pickup 5, the pickup carriage 6 is tilted.

Next, the operation will be described. As shown in FIGS. 2 to 7, such a disc player is provided with an optical pickup 5 by the function of a turn carriage 9.
Can be transferred to the upper or lower pair of guide rails 2A and 2B. In this case, for example, when the pickup carriage 6 moves from the guide rails 2A and 2B to the turn carriage 9 on the lower side, the carriage driving means 8 slides on the guide 9A by the engagement of the gear 7A with the rail 7. The moving guide hole 6A is guided, and the return guide 12 is guided to the guide 9B. At this time, the return guide 12 pushes the arm 13C of the return spring member 13 and accumulates the elastic force of the return spring member 13.

Conversely, when the optical pickup 5 and the pickup carriage 6 are switched from the turn carriage 9 to the guide rails 2A and 2B,
The carriage driving means 8 rotates in the reverse direction, and a driving force is applied to the pickup carriage 6 on the guide rail 2B side. On the other hand, on the guide rail side, the return spring member 13 is moved in accordance with the operation sequence shown in FIGS.
As a result, the return guide 12 is pushed back, and the rolling guide wheel 6B can be smoothly transferred to the guide rail 2A without delay of the return operation.

[0013]

As described in detail above, the present invention provides a pickup carriage on which an optical pickup is mounted, carriage driving means provided on one side of the pickup carriage, and a carriage provided along a guide rail. By providing a rail cooperating with a carriage driving means, a return guide provided on the other side of the pickup carriage, and a return spring member provided on the turn carriage corresponding to the return guide, the turn carriage is provided. When the optical pickup is transferred from the turn carriage to the guide rail, the return spring member presses the return guide toward the guide rail, so that the pickup carriage does not tilt to the left and right, and guides the guide from the turn carriage. Transfer of pickup carriage to rail There can be smoothly performed so.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing one embodiment of a disc player according to the present invention.

FIG. 2 is a schematic plan view in the embodiment.

FIG. 3 is a schematic end view in the embodiment.

FIG. 4 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

FIG. 5 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

FIG. 6 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

FIG. 7 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

FIG. 8 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

FIG. 9 is a functional explanatory diagram showing a change state of the optical pickup in the embodiment.

FIG. 10 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

FIG. 11 is a functional explanatory view showing a change state of the optical pickup in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 1A, 1B Extension part 2A, 2B Guide rail 2C Tilt frame 3 Spindle motor 4 Deck 5 Optical pickup 5A Objective lens 6 Pickup carriage 7 Rail 8 Carriage drive means 9 Turn carriage 10 Axis 12 Return guide 13 Return spring member

Claims (1)

(57) [Scope of request for utility model registration] 1. A disk player in which an optical pickup is inverted by a turn carriage and reproduction is performed while moving the optical pickup, wherein the pickup carriage on which the optical pickup is mounted, and the pickup carriage A carriage driving means provided on one side of the carriage, a rail provided along the guide rail and cooperating with the carriage driving means, a return guide provided on the other side of the pickup carriage, and the return guide. A corresponding return spring member provided on the turn carriage,
A disc player, wherein the return spring member presses the return guide toward the guide rail when the optical pickup is switched from the turn carriage to the guide rail.