JPH10208349A - Disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to quickly and easily take out a disk remaining in a pickup unit in case of emergency such as trouble of the equipment or power failure, etc. SOLUTION: This player is constituted in such a manner that the disk is inserted into an opening part of a casing, and a loading motor 29 is forwardly driven to place the disk on a turntable in the pickup unit, and by pushing a disk take-out button, the motor 29 is reversely driven to forward the disk on the turntable to the opening part of the casing. In addition, the player is provided with an emergency mechanism 4 for rotating a drive shaft 29a of the motor 29 by manual operation. This emergency mechanism 4 has a rotary body 55 interlocked and linked via a gear mechanism 56 with the drive shaft 29a, and this rotary body 55 is formed with a recessed part 58 to be engaged with a manual tool.

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 reproducing, recording, or erasing an optical disk or a magneto-optical disk (hereinafter referred to as a disk), which is abbreviated as a CD or the like, and more particularly, to a failure or power failure of a device. In the event of an emergency, for example, the disk left in the pickup unit can be taken out manually.

[0002]

2. Description of the Related Art Conventionally, in a disc player of this type, a disc is inserted into an opening of a casing, a loading motor is driven to rotate forward, and the disc is mounted on a turntable in a pickup unit by a loading mechanism. When the ejection button is pressed, the loading motor is driven in the reverse direction, and the disc on the turntable is sent out to the opening of the casing by the loading mechanism.

[0003]

In the above-mentioned conventional configuration,
When a disk is left in the pickup unit in an emergency such as equipment failure or power failure, there is no mechanism to remove the disk, so the pickup unit has to be disassembled, and it takes time and effort to remove the disk. .

An object of the present invention, in view of the above-mentioned conventional disadvantages, is to provide a disk player which can quickly and easily take out a disk left in a pickup unit in an emergency such as a failure of a device or a power failure.

[0005]

According to the first aspect of the present invention, a disk is inserted into an opening of a casing, a loading motor is driven to rotate forward, and the disk is picked up by a loading mechanism. A disc player which is placed on a turntable in the unit and pushes a disc eject button to drive the loading motor in a reverse direction so that a disc on the turntable is sent out to an opening of a casing by a loading mechanism; An emergency mechanism for manually rotating the drive shaft of the motor is provided.

In the above configuration, when a disc is left in the pickup unit in an emergency such as a device failure or a power failure, the emergency mechanism is manually operated to rotate the drive shaft of the loading motor, thereby causing the disc in the pickup unit to rotate. Can be sent out to the opening of the casing.

In this case, it is only necessary to add an emergency mechanism to a ready-made disc player, so that the production cost is hardly increased and the disc player is economical.

According to a second aspect of the present invention, in the first aspect of the present invention, the emergency mechanism comprises a rotating body operatively connected to a drive shaft of the loading motor.
An engaging portion for engaging a manual tool with the rotating body is formed.

According to the above configuration, after the manual tool is engaged with the engaging portion of the rotating body, the drive shaft of the loading motor is rotated by simply rotating the rotating body with the manual tool, and the inside of the pickup unit. Can be sent out to the opening of the casing.

According to a third aspect of the present invention, in the second aspect of the invention, the rotating body is interlocked to the drive shaft via a gear mechanism.

According to the above configuration, the rotational force of the rotating body can be reliably transmitted to the driving shaft of the loading motor via the gear mechanism.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the invention described above, the engaging portion is formed of a polygonal concave portion formed concentrically with the rotating body.

According to the above construction, the manual tool and the rotating body are integrally connected only by fitting the manual tool into the polygonal concave portion of the rotating body, and the rotating body is surely rotated by the manual tool. Can be done.

According to a fifth aspect of the present invention, in any one of the second to fourth aspects, an insertion hole for the manual tool is formed in a front panel of the casing.

According to the above construction, the disk can be easily taken out by operating the manual tool from the front of the casing.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 6 show a loading state of a disc player according to an embodiment of the present invention, in which a pickup unit 2 is disposed in a casing 1 and loading is performed on one side of the pickup unit 2. The mechanism 3 is arranged, and the emergency mechanism 4 is attached to the loading mechanism 3.

As shown in FIG. 6, an opening 5 for inserting a disk D and an insertion hole 7 for inserting a manual tool 6 for the emergency mechanism 4 are formed in the front panel 1a of the casing 1. Is formed.

As shown in FIGS. 1, 2 and 5, the pickup unit 2 includes an upper frame 2a fixed to the casing 1 by a connecting member 9, and a connecting member connected to the casing 1 via a vibration absorbing material 10. And a turntable 12 rotated by a drive motor 12a and an optical pickup 13 are disposed on the lower frame 2a.

As shown in FIGS. 1 and 5, the upper frame 2
a loading roller 17 at one end of a swing arm 16 pivotally supported on both front side walls via a pivot shaft 15.
A supporting plate 17a is rotatably supported, and the loading roller 17 is fixed to the lower surface in front of the upper frame 2a by a spring 18 stretched between the other end of the swing arm 16 and the lower frame 2a. The disc D is held between the guide plate 19 and the loading roller 17.

As shown in FIG. 5, a swing frame 22 is swingably supported on both rear side walls of the upper frame portion 2a via a pivot shaft 21, and a disk is attached to a tip end of the swing frame 22. Holding frame 23
Is disposed so as to be able to ascend and descend within a certain range, and the swing frame 22 is directed toward the turntable 12 by a spring 24 stretched between a projection 22 a projecting from one end of the swing frame 22 and the lower frame 2 a. When the swing frame 22 is moved downward, the holding frame 23 is brought into contact with the disc D placed on the turntable 12 (see FIG. 9).

The loading mechanism 3 is shown in FIGS.
As shown in FIG. 7, a slide plate 26 slidable in the front-rear directions a and b disposed on one side of the upper frame portion 2a, and loading for sliding the slide plate 26 via an interlocking mechanism 27 and a clutch mechanism 28. And a motor 29.

As shown in FIG. 2, the slide plate 26 has long holes 31 formed at both ends thereof fitted into support pins 32 projecting from the side walls of the upper frame portion 2a, so that the front and rear directions a, and b, guide holes 33, 3 formed at both front and rear ends of the slide plate 26.
4 is a support shaft 17a of the loading roller 17 and the swing frame 2
2 is fitted to a projection pin 35 projecting from the projection 22a,
A spring 36 for urging the slide plate 26 rearward is provided. The slide plate 26 is advanced b from the state shown in FIG.
The loading roller 17 and the swing frame 22 are pushed down via the support shaft 17a and the projecting pin 35 by 34a (see FIGS. 8 and 9).

As shown in FIGS. 3 and 6, the interlocking mechanism 27 includes a support frame 3 fixed to the upper frame 2a with screws 37.
8 and a driven gear 41a formed at one end of a rotary cylinder 41 rotatably supported by a support frame 38 via a support shaft 40 and meshing with the main gear 39.
And a worm wheel 41b formed at the other end of the rotary cylinder 41 and meshing with a worm gear 42 fixed to the drive shaft 29a of the loading motor 29, and a movable gear 43 detachable from the main gear 39. The worm gear 42 is fixed to the support shaft 17a of the loading roller 17 by driving the loading motor 29 in the forward and reverse directions while the movable roller 43 is meshed with the main gear 39 by moving the loading roller 17 upward. Worm wheel 41
b, the loading roller 17 can be rotated forward / reverse via the rotating cylinder 41, the driven gear 41a, the main gear 39, and the movable gear 43.

As shown in FIGS. 1 and 4, the clutch mechanism 28 includes a pinion 45 integrally formed concentrically with a main gear 39 and a slot 46a formed at an upper portion thereof.
The rack 46 is attached to the slide plate 26 so as to be movable in a predetermined range in the front and rear directions a and b by being fitted to a support pin 47 protruding from the rack 46 and is detachable from the pinion 45. A biasing spring 48 and a long hole 49a formed in the rear portion are fitted to the support pin 32 protruding from the upper frame portion 2a to be mounted on the upper frame portion 2a so as to be movable within a predetermined range in the front-rear directions a and b. The interlocking rod 49 whose front end 49b is opposed to the rear end surface of the rack 46, and the upper frame 2a
And a spring 52 for urging the interlocking rod 49 rearward. The solenoid 51 is fixed to the rear part and the movable iron core 51a is connected to the rear end of the interlocking rod 49. When the movable iron core 51a is immersed by actuating the movable rod 51, the interlocking rod 49 is pushed forward, and the rack 46 is advanced b by the front end portion 49b of the interlocking rod 49.
The rack 46 is engaged with the pinion 45 (see the phantom line in FIG. 4). In FIG. 2, reference numeral 53 denotes a slide plate detector including a limit switch. When the slide plate 26 advances b, the protrusion 26a of the slide plate 26 hits the detector 53, and the slide plate 26 advances. b is detected (see FIG. 8).

In the above configuration, at the time of loading,
As shown in FIG. 5, when the disc D is pushed into the gap between the loading roller 17 and the guide plate 19 through the opening 5, the loading motor 29 is activated based on a detection signal of a detector (not shown) for detecting the pushing. Driven to rotate and the interlocking mechanism 27
Is rotated in the direction of arrow c (see FIG. 6).
Thus, the loading roller 17 is rotated in the direction of arrow e via the movable gear 43 meshing with the main gear 39, and the disk D is drawn into the pickup unit 2 (see the solid line in FIG. 5).

Next, when, for example, a play button (not shown) is pressed, the solenoid 51 is actuated by the play operation signal to move the interlocking rod 49 forward b, and the interlocking rod 49 pushes out the rack 46. The rack 46 is engaged with a pinion 45 rotating in the direction of arrow c (see the phantom line in FIG. 4), and the slide plate 26 is
Is advanced b (see FIG. 8). As a result, the support shaft 17 a of the loading roller 17 is
The movable gear 43 is separated from the main gear 39 by being pushed down by a, the loading roller 17 is moved down, and the disk D is placed on the turntable 12. At the same time, the projection pin 35 is
As a result, the swing frame 22 is moved down, and the holding frame 23 is brought into contact with the disk D placed on the turntable 12 (see FIG. 9). Further, the protrusion 26a of the slide plate 26 hits the slide plate detector 53 to detect that the loading of the disk D is completed. Thereafter, the turntable 12 is rotated, and the optical pickup 1 is rotated.
3, the information recorded on the disk D is read.

At the time of unloading, by pressing a disk ejection button (not shown) in the state shown in FIGS. 7 to 9, the loading motor 29 is driven to rotate in the reverse direction, and the main gear 39 of the interlocking mechanism 27 moves in the direction of arrow d. Rotated. As a result, the slide plate 26 is retracted through the pinion 45, the rack 46, and the support pins 47, and the swing frame 22 and the loading roller 17 are moved upward. As a result, the disc D on the turntable 12 is lifted by the loading roller 17, the disc D is sandwiched between the loading roller 17 and the guide plate 19 (see the solid line in FIG. 5), and the loading roller 17 rotates in the direction of arrow f. As a result, the disc D is sent out to the opening 5.

As shown in FIGS. 3 and 6, the emergency mechanism 4 has a rotating body 55 rotatably supported by the support frame 38 and parallel to the drive shaft 29a of the loading motor 29, and is integrated with the worm gear 42. Formed gear 5
The rotating body 55 is operatively connected to the drive shaft 29a via a gear mechanism 56 composed of a gear 6b and a gear 56b integrally formed with the rotating body 55. Engagement portion) is formed concentrically.

In the above configuration, when the disk D is left in the pickup unit 2 in an emergency such as a device failure or a power failure, the manual tool 6 is inserted into the insertion hole 7 and the polygonal projection of the manual tool 6 is formed. 6a is the concave portion 5 of the rotating body 55.
After the fitting, the rotating body 55 need only be rotated by the manual tool 6. As a result, the drive shaft 29a is reversed via the gear mechanism 56, and the disc D can be unloaded and sent out to the opening 5.

According to the above configuration, it is only necessary to add the emergency mechanism 4 to a ready-made disc player, so that the production cost is hardly increased and the disc player is economical. Further, the rotational force of the rotating body 55 can be reliably transmitted to the drive shaft 29a via the gear mechanism 56. Further, the disk D can be easily taken out by operating the manual tool 6 from the front of the casing 1.

In the above embodiment, the rotating body 55 has the recess 5
8 and the protrusion 6a was formed on the manual tool 6, but conversely, a protrusion was formed on the rotating body 55 and a recess was formed on the manual tool 6, and the protrusion and the recess were mutually connected. You may make it fit.

Further, instead of the concave portion 58 of the rotating body 55, a + or-groove may be formed, and a driver may be engaged with the + or-groove to rotate the rotating body 55.

Further, the tip of the rotating body 55 may be extended to the insertion hole 7. Thus, the rotating operation of the rotating body 55 can be performed more easily.

[0034]

According to the first aspect of the present invention, even if a disc is left in the pickup unit in an emergency such as a device failure or a power failure, the emergency mechanism can be operated manually to operate the emergency mechanism. The left disk can be quickly and easily taken out. Further, since it is only necessary to add an emergency mechanism to a ready-made disc player, the production cost is hardly increased and the disc player is economical.

According to the second aspect of the present invention, after the manual tool is engaged with the engaging portion of the rotating body, the driving shaft of the loading motor is rotated simply by rotating the rotating body with the manual tool. Thus, the disc in the pickup unit can be sent out to the opening of the casing.

According to the third aspect of the invention, the rotational force of the rotating body can be reliably transmitted to the driving shaft of the loading motor via the gear mechanism.

According to the fourth aspect of the present invention, the manual tool and the rotating body are integrally connected only by fitting the manual tool into the polygonal concave portion of the rotating body, and the rotating body is rotated by the manual tool. Can be reliably rotated.

According to the fifth aspect of the present invention, the manual tool is inserted into the insertion hole formed in the front panel of the casing and is engaged with the engaging portion of the rotating body. The disk can be easily taken out by operating the tool.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view during loading of a disc player according to an embodiment of the present invention.

FIG. 2 is a cutaway side view of the same part.

FIG. 3 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 4 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 5 is a view taken in the direction of arrows CC in FIG. 1;

FIG. 6 is a perspective view of the main part.

FIG. 7 is a partially cutaway plan view during the loading.

FIG. 8 is a cutaway side view of the same part.

FIG. 9 is a view as viewed in the direction of arrows EE in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Pickup unit 4 Emergency mechanism 5 Opening 6 Hand tool 12 Turntable 29 Loading motor 29a Drive shaft 55 Rotating body 56 Gear mechanism 58 Depression (engagement part) D disk

Claims (5)

[Claims] 1. A disc is inserted into an opening of a casing, a loading motor is driven to rotate forward, the disc is placed on a turntable in a pickup unit by a loading mechanism, and a disc eject button is pressed to load the disc. In a disk player in which a motor is driven in reverse to feed a disk on a turntable to an opening of a casing by the loading mechanism, an emergency mechanism for manually rotating a drive shaft of the loading motor is provided. A disc player, characterized by: 2. The emergency mechanism according to claim 1, wherein the emergency mechanism comprises a rotating body interlocked with a driving shaft of the loading motor, and an engaging portion for engaging a manual tool with the rotating body is formed. The disc player according to claim 1. 3. The disc player according to claim 2, wherein the rotating body is linked to the drive shaft via a gear mechanism. 4. The apparatus according to claim 2, wherein said engaging portion comprises a polygonal concave portion formed concentrically with said rotating body.
Or the disc player according to 3. 5. The disc player according to claim 2, wherein an insertion hole for the manual tool is formed in a front panel of the casing.