JPH07262665A - Cd player - Google Patents

Abstract

PURPOSE:To simplify the design and manufacture by supplying the output of a driving motor to a pressurizing means by a driving means after the speed is reduced by a speed reduction mechanism and outputting the pressurizing force to a lever by the pressurizing means after receipt of the reduced driving force from the driving means. CONSTITUTION:The CD player 1 is provided with the pressurizing means 6 outputting the pressurizing force after receipt of the reduced driving force from the driving means 5 for performing the relative movement between a base 2 and a CD placing table 3. The lever 7 is operated by receiving the pressurizing force from this pressurizing means 6 to position a CD playing means 4 higher than the position of the CD at the time when it is placed on the CD placing table 3, thereby the access of the CD is performed. In this case, the design and manufacture of the means to access the CD from the CD placing table 3 to the CD playing means 4 are simplified.

Description

Detailed Description of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact disc which is a record carrier, that is, a CD player for playing a so-called CD. In particular, a base, a CD mounting table for moving a CD relative to the base and mounting a CD,
A mechanism for providing CD playing means for playing D, and accessing a CD placed on the CD placing table to the CD playing means and a CD placed on the CD playing means to the CD placing table Regarding

2. Description of the Related Art In a conventional CD player having a base, a CD mounting table and a CD playing means,
CD between the CD mounting table and the CD playing means
The configuration for access of is equipped with a combination of racks and pinion gears in which teeth are arranged in a straight line and curved from the middle.
It is known that the pinion gear is accessed by the rotational force when the pinion gear meshes with the curved portion of the rack. Further, there is known a configuration in which the relative movement force between the base and the CD mounting table is directly received to access the CD between the CD mounting table and the CD playing means.

[0003]

When the pinion gear meshes with the curved portion of the rack, the rotational force exerts on the CD.
In the CD player having a structure for accessing the CD between the mounting table and the CD playing means, there is a problem that the design and manufacturing of the pinion gear and the rack are complicated.
In particular, in order to smoothly access the CD between the CD mounting table and the CD playing means, higher precision processing is required, and the problem is serious. On the other hand, in a CD player configured to directly receive the force of relative movement between the base and the CD mounting table to access the CD between the CD mounting table and the CD playing means, the CD playing means moves relative to the base. In order to access the CD by rotating it, the force of relative movement between the base and the CD mounting table must be large. Therefore, the drive motor for relatively moving the base and the CD mounting table has a large output torque. There was a problem of needing.

The present invention has been made in view of the above circumstances, is simple in design and manufacturing, and has a base and a CD.
(EN) Provided is a CD player in which the relative movement force of the playing means is small.

[0005]

The present invention comprises a base and a C
Pressing means that outputs a pressing force when the CD mounting table takes a position for playing the CD with respect to the base in response to the decelerated driving force from the driving means for relatively moving the D mounting table. And receives a pressing force from the pressing means and acts on the CD playing means to place the CD from the CD mounting table at a position higher than the CD when mounted on the CD mounting table. It is a CD player equipped with a lever.

The detailed structure is such that the relative position of the bass relative to the bass is such that the operator has a first position for accessing the CD and a second position for the CD to be played. Has a CD mounting table that can slide or rotate in both the forward and reverse directions of one direction, and a CD mounting surface, and the CD mounting surface is mounted on the CD mounting table. The base is provided so that the CD placed on the CD placing table may be placed higher than the CD and the CD placed on the CD placing table may be placed lower than the CD placing table. CD supported by the pivot
A play means, a drive motor and a deceleration mechanism for the drive motor, and a drive means interposed between the base and the CD mounting table for performing relative movement between the base and the CD mounting table; It operates by receiving the driving force from the driving means, and outputs a pressing force after the CD mounting table takes the second position from the first position with respect to the base,
In addition, when the CD mounting table tries to take the first position from the second position with respect to the base, the pressing means releases the pressing force, and the pressing means is supported by the base and the one end. And the other end engages with the CD playing means side and receives a pressing force from the pressing means, the CD placed on the CD placing table is placed on the CD playing means, and CD when the pressing force of the pressing means is released
The CD player is provided with a lever for rotating the CD playing means with respect to the base so that the CD placed on the playing means is placed on the CD placing table.

In order to supplement the output of the drive motor of the drive means and the reduction ratio of the reduction mechanism, the lever is formed such that the distance from the fulcrum to the pressing piece is larger than the distance from the fulcrum to the CD playing means. Can be mentioned.

The drive means decelerates the output from the drive motor by the speed reduction mechanism and then applies the output to the pressing means. The pressing means receives the decelerated driving force from the driving means and outputs a pressing force to the lever.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. However, the present invention is not limited to the embodiments.

As shown in FIG. 1, the CD player 1 includes a base 2, a CD mounting table 3, and a CD playing means 4.
The drive means 5, the pressing means 6, and the lever 7 are provided.

The base 2 is a C mounted on the CD playing means 4.
A clamper 8 for holding D in a predetermined posture is provided. The CD mounting table 3 has a first position (see FIG. 2) for the operator to access the CD with respect to the base 2 and a second position for the CD to be played (see FIG. 4).
It can be slid in the directions of arrows A and B with respect to the base 2.

The CD playing means 4 includes a drive motor C
It is a means for reading a signal from a CD, which is provided with a rotation driving means for rotating D in a predetermined manner, a signal reading means for optically reading a signal carried on a CD (above, not shown), and the like. The CD playing means 4 has a CD mounting surface 9 and is rotated in the direction of arrow C with respect to the base 2 so that the CD mounting surface 9 is mounted on the mounting surface 10 of the CD mounting table 3. At a position higher than the actual CD and receiving and mounting the CD from the CD mounting table 3 (see FIG. 5), and in the direction of arrow D, the CD mounting surface 9 is mounted on the CD mounting surface 9. The base 2 is pivotally supported so that the CD placed on the CD table 3 lower than the placing surface 10 can be placed on the CD placing table 3 (see FIG. 3). It is supported. Reference numeral 11 is a shaft portion for pivotal support, which is formed on the CD playing means 4, and 12 is a bearing portion for pivotal support, which is formed on the base 2.

A pin 13 is provided on the CD playing means 4 and a guide portion 14 is provided on the base 2 in order to guide the direction of rotation of the CD playing means 4 with respect to the base 2 and regulate the range of the turning. Has been.

The driving means 5 is interposed between the base 2 and the CD mounting table 3 and is for sliding the base 2 and the CD mounting table 3 in the directions of arrows A and B. As shown in FIG. 1, the drive means 5 is provided on the side of the base 2, the drive motor 15, the pulleys 16 and 17, the belt 18, the gear train 19 and the pinion gear 20, and the CD mounting table 3 side. And the alignment of teeth is indicated by arrows A and B
It is composed of a rack 21 extending in the direction. The pulleys 16 and 17, the belt 18, and the gear train 19 form a speed reduction mechanism for the drive motor 15.

As shown in FIGS. 6 and 7, the pressing means 6 is composed of a pressing piece 22, a stopper 23, a coil spring 24, etc. which are integrally formed with the rack 21, and the driving means 5
After receiving the driving force from the CD mounting table 3 and the CD mounting table 3 has moved from the first position to the second position with respect to the base 2, a pressing force is output and the CD mounting table 3 Is to release the pressing force when trying to take the first position from the second position with respect to the base 2. In other words, the rack 21 is held on the CD mounting table 3 so as to be slidable in the directions of arrows A and B. When the CD mounting table 3 is sliding with respect to the base 2, as shown in FIG. 6, the rack 21 is not slidable and is held at a position in the direction of arrow B by the stopper 23. The pressing piece 22 integrated with the rack 21 is also held at the position in the arrow B direction. On the other hand, when the CD mounting table 3 slides with respect to the base 2 and takes the second position, the stopper 23 is pressed by the convex portion 25 of the base 2 and the shaft 26 as shown in FIG. The rack 21 is released from the non-slidable state by the stopper 23 by rotating in the direction of arrow E about the center of the table, and is further slid in the direction of arrow A with respect to the CD mounting table 3 by receiving the driving force of the driving means 5. At this time, the pressing piece 22 integrated with the rack 21 also slides and outputs a pressing force in the direction of arrow A.
The stopper 23 obtains an urging force that rotates in the arrow F direction around the shaft 26 by the coil spring 24. Therefore, the pressing piece 22 integrated with the rack 21 has a structure in which the stopper 23 is activated and held in the position of the arrow B direction when the sliding state returns from the position shown in FIG. 7 to the position shown in FIG. Has become.

The lever 7 is supported by two bases, engages with the pressing piece 22 of the pressing means 6 at one end, and has the other end at C.
When engaging the D-play means 4 and receiving a pressing force from the pressing piece 22, the CD placed on the CD mounting table 3 is placed on the CD-playing means 4, and the pressing force of the pressing piece 22 is increased. When the CD is released, the CD placed on the CD playing means 4 is placed on the CD placing table 3 so that the C is mounted on the base 2.
The D play means 4 can be rotated. In the lever 7, the distance from the fulcrum to the pressing piece 22 is the CD from the fulcrum.
It is formed larger than the distance to the playing means 4.
Further, 27 is a pin receiving hole formed on the other end side of the lever 7, and 28 is an engaging pin formed on the CD playing means 4.

The CD player 1 is constructed as described above. The operation of rotating the CD playing means 4 with respect to the base 2 will be described below. In the state shown in FIG. 2, the CD to be played on the CD mounting table 3
When (not shown) is placed and then the drive means 5 is output, the drive force from the drive motor 15 is reduced by the reduction mechanism and transmitted to the pinion gear 20. Here, since the rack 21 is in the position shown in FIG. 6 and is in a state of being integrated with the CD mounting table 3, the action of the pinion gear 20 on the rack 21 is an action on the CD mounting table 3, and as a result, The CD mounting table 3 has an arrow A with respect to the base 2.
Slide in the direction.

When the CD mounting table 3 slides in the direction of arrow A with respect to the base 2 and reaches the second position, the stopper 23 is pressed by the convex portion 25 of the base 2 and the rack 21 cannot slide. The state is released. At this time, the CD mounting table 3 is kept stopped with respect to the base 2, but the rack 21 receives a driving force from the pinion gear 20 as shown in FIG. Slide in the A direction.

At this time, the pressing piece 22 integrated with the rack 21 slides in the direction of arrow A to press the lever 7. The lever 7 acts by receiving the pressing force from the pressing means 6 to rotate the CD playing means 4 in the direction of the arrow C with respect to the base 2 to change the attitude shown in FIG. 3 to the attitude shown in FIG.
Here, the CD placing surface 9 of the CD playing means 4 is located higher than the placing surface 10 of the CD placing table 3, and a state where the CD is received from the CD placing table 3 and placed is obtained. Further, at this time, the output of the driving means 5 is automatically stopped.

After the playing of the CD, when the driving means 5 is output in the reverse direction, the pressing means 6 operates in the opposite direction to the above, and further, the CD mounting table 3 moves in the direction of arrow B with respect to the base 2. Slide to get the initial state. As described above, in the rotation of the CD playing means 4 with respect to the base 2,
The driving means 5 decelerates the output from the driving motor 15 by the deceleration mechanism and then gives it to the pressing means 6, and then the pressing means 6 outputs the pressing force based on the decelerated driving force of the driving means 5 to the lever 7. Since the lever 7 is configured so that the distance from the fulcrum to the pressing piece 22 is greater than the distance from the fulcrum to the CD playing means 4, the drive motor 15 has a smaller output torque than the conventional technique. It can still be operated. Also, base 2
On the other hand, the drive means 5, the pressing means 6 and the lever 7 which are means for making the CD playing means 4 take two postures,
It is composed of a member having a simple shape as compared with the conventional technique, and the design and manufacturing are simple.

Since the pin 13 is provided on the CD playing means 4 and the guide portion 14 is provided on the base 2, the direction of rotation of the CD playing means 4 with respect to the base 2 is guided, and the rotation is made. The range is regulated, and the CD playing means 4 can be more reliably rotated with respect to the base 2.

In the CD player 1, the relative movement between the base 2 and the CD mounting table 3 is a linear movement, but it may be an arc movement. The shape and size of the lever 7, in particular, the distance from the fulcrum to the pressing piece 22 and C from the fulcrum
It is desirable that the distance to the D-play means 4 be appropriately selected in consideration of the output of the drive motor 15 and the reduction ratio of the reduction mechanism.

According to the present invention, the pressing means for outputting the pressing force by receiving the reduced driving force from the driving means for moving the base and the CD mounting table relative to each other, and the pressing force from the pressing means. In response to the operation, the CD playing means is positioned higher than the CD when it is placed on the CD placing table, and the lever is provided to access the CD. The CD player is simple in designing and manufacturing the means for accessing the CD to the CD playing means, and requires only a small output of the driving means for relatively moving the base and the CD playing means.

[Brief description of drawings]

FIG. 1 is an overall perspective view including a partial cutout, showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II of the embodiment shown in FIG. 1 when the CD mounting table is in the first position with respect to the base.

FIG. 3 is a II-II sectional view of the embodiment shown in FIG. 1 when the CD mounting table is in the first position with respect to the base.

FIG. 4 is a cross-sectional view taken along the line I-I of the embodiment shown in FIG. 1 when the CD mounting table is in the second position with respect to the base.

5 is a sectional view taken along the line II-II of the embodiment shown in FIG. 1 when the CD mounting table is in the second position with respect to the base.

6 is a perspective view of relevant parts for explaining the state of the pressing means when the CD mounting table is in the first position with respect to the base in the embodiment shown in FIG. 1. FIG.

FIG. 7 is a perspective view of relevant parts for explaining the state of the pressing means when the CD mounting table of the embodiment shown in FIG. 1 is in the second position with respect to the base.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CD player 2 Base 3 CD mounting table 4 CD playing means 5 Driving means 6 Pushing means 7 Lever 11 Shaft section 12 Bearing section 15 Drive motor 20 Pinion gear 21 Rack

Claims (2)

[Claims] 1. A bass and a relative position relative to the bass so that the operator takes a first position for accessing the CD and a second position for the CD to be played. A CD mounting table that can slide or rotate in both the forward and reverse directions, and a CD mounting surface, and the CD mounting surface is more than the CD when mounted on the CD mounting table. CD from the CD mounting table located high
The position of the CD and the CD placed at a low position
CD playing means supported by a pivot on the base so as to be able to take a posture to be placed on a placing table,
A drive motor and a deceleration mechanism for the drive motor are provided, and are interposed between the base and the CD mounting table to perform relative movement between the base and the CD mounting table, and the drive means. It operates by receiving the driving force of
The pressing force is output after the CD mounting table takes the second position from the first position with respect to the base, and the CD mounting table has the first position from the second position with respect to the base. When trying to take a position, a pressing means for releasing the pressing force and a base supported by the base are engaged with the pressing means at one end and the other end is engaged with the CD playing means side,
When the pressing force is received from the pressing means, the CD mounted on the CD mounting table is mounted on the CD playing means, and
A lever is provided which can rotate the CD playing means with respect to the base so as to place the CD placed on the CD playing means on the CD placing table when the pressing force of the pushing means is released. CD player. 2. The CD player according to claim 1, wherein the lever is formed such that the distance from the fulcrum to the pressing piece is larger than the distance from the fulcrum to the CD playing means. [0001]