JPH087432A - Disk takeout device for disk player - Google Patents

Abstract

PURPOSE:To perform operation for taking out a disk in the state of service interruption by moving a control member by means of a pressing bar inserted from the outside so that a tray on which the disk is placed may be displaced toward an attaching/ detaching position when the tray is at an acting position. CONSTITUTION:By inserting the insertion part 29 of the pressing bar 28 in the insertion hole of the front panel of a cabinet in a direction shown by an arrow B when the disk is at the acting position in the case of service interruption, the tip part 30 of the insertion part 29 is pressed to abut on the end 10A of a control member 10. When the bar 28 is pressed in the direction shown by the arrow B in such a state, the member 10 is pressed and displaced in the direction shown by the arrow B. Then, a displacing member 6 coupled with the member 10 through a coupling pin 15 is turned and displaced counterclockwise and an abutting pin 9 abuts on a pressing piece 8 provided in the tray 1 so as to press and displace the tray 1 in a direction A. At such a time, a rack gear for a tray and a gear 4 for driving are meshed with each other and the auxiliary gear 26 of an auxiliary member 24 is meshed with the gear 4. By pushing in the bar 28 further, the front edge 1A of the tray 1 projects from the front surface of the cabinet by the rotation of the gear 4 and the disk on the tray 1 is taken out with a hand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc ejecting device for a disc player, and more particularly to a device capable of easily ejecting a disc during a power failure.

[0002]

2. Description of the Related Art Disc players, which read signals recorded on a disc by using an optical pickup, are widely used. Among such disc players, there is a mounting / removing position of a tray on which the disc is placed. There is one in which the displacement operation between the operating position and the operating position is performed by the rotational force of the electric motor.

[0003]

When the tray is configured to be displaced between the disk attaching / detaching position and the signal reading operation position by the rotational force of the electric motor, the operability is excellent, but the tray is not operated during a power failure. There is a problem that the disc cannot be ejected because the disc cannot be displaced to the attachment / detachment position.

The present invention is intended to provide a disk unloading device that solves the above problems.

[0005]

DISCLOSURE OF THE INVENTION A disk unloading device of the present invention uses a motor during a displacement operation of a tray on which a disk is placed from an attachment / detachment position to an operation position and a displacement operation from the operation position to an attachment / detachment position. The drive gear that is rotationally driven and meshes with the drive gear when formed on the tray and between the attachment / detachment position and the position immediately before the operating position, and when the tray is in the operating position. A tray rack gear that is disengaged from a drive gear, and a tray rack gear that is displaceably attached to a fixed substrate and that is in the first position and the second position when the tray is in the attachment / detachment position and the operation position; The displacement member is displaced from the first position toward the second position by the displacement force of the tray during the displacement operation from the attachment / detachment position to the operation position, and is slidable on the fixed substrate. A control member that is attached to the control member and slides while being coupled to the displacement member and is in the first position and the second position when the displacement member is in the first position and the second position; And a rack gear that meshes with the drive gear when the control member slides to a predetermined position as the displacement member moves from the first position toward the second position, and the rack gear rotates on the control member. The auxiliary member is movably provided and has auxiliary teeth formed to mesh with the drive gear when the control member slides from the second position toward the first position.

[0006]

According to the present invention, the control member is moved from the second position to the first position by the push rod inserted from the outside when the tray is in the operating position.
The tray is displaced in the attachment / detachment position direction by slidingly displacing it in the position direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 1 is a tray having a mounting portion 2 on which a disk (not shown) is mounted, which is shown by a guide means (not shown) provided on a fixed substrate 3. It is slidably supported between the disk mounting / dismounting position shown in FIG. 1 and the operation position for performing the signal reading operation shown in FIG.

Reference numeral 4 denotes a drive gear which is rotationally driven by an electric motor (not shown) during the displacement operation of the tray 1 from the attachment / detachment position to the operating position and during the displacement operation from the operation position to the attachment / detachment position
5 is formed on the tray 1 and the tray 1
Is a tray rack gear that meshes with the drive gear 4 when it is in the attaching / detaching position shown in FIG. 1 and the position shown in FIG. 2, that is, a position immediately before the operating position, and the tray 1 is displaced to the operating position shown in FIG. Then, the engagement with the drive gear 4 is released.

Numeral 6 is attached to the fixed base plate 3 by a shaft 7 so as to be rotatable between a first position which is the attaching and detaching position shown in FIG. 1 and a second position which is the operating position shown in FIG. A contact pin 9 is formed as a displacing member, which contacts the pressing piece 8 formed on the tray 1 when the tray 1 is slidably displaced from the attachment / detachment position to the operating position.

Reference numeral 10 is formed with guide grooves 13 and 14 for engaging with guide pins 11 and 12 provided on the fixed substrate 3, and the guide pins 11 and 12 displace the tray 1, that is, the arrow A and A control member provided so as to be slidable and displaceable in the B direction. The control member is connected to the displacement member 6 by a connecting pin 15, and corresponds to a first position and a second position of the displacement member 6. It is related to be located in the first position and the second position.
Reference numeral 16 is a rack gear formed on the control member 10, and is configured to mesh with the drive gear 4 when the control member 10 is slid and displaced from the first position to a predetermined position in the second position direction. There is.

Reference numeral 17 is a control portion formed on the fixed substrate 3, and a first inclined portion 19 and a second inclined portion 20 are provided on both sides of the convex portion 18. Reference numeral 21 denotes an abutting protrusion provided on the elastic portion 22 formed on the control member 10, and moves to a position immediately before the rack gear 16 formed on the control member 10 meshes with the drive gear 4. When it does, it is configured to contact the first inclined portion 19 of the control unit 17.

Reference numeral 23 is a sliding member mounted on the fixed substrate 3 by guide means (not shown) so as to be displaced in the directions of arrows A and B. The sliding member 23 slides in conjunction with the rotational displacement operation of the displacement member 6. The lower end portion of the contact pin 9 is connected so as to be dynamically displaced.

Reference numeral 24 is an auxiliary member that is rotatably mounted on the control member 10 by a shaft 25 and is urged to rotate in the clockwise direction by a spring (not shown). When slidingly displaced from the second position in the direction of the first position, that is, in the direction of arrow B, the drive gear 4
Is formed with auxiliary teeth 26 that mesh with the. Reference numeral 27 is a restriction piece formed on the control member 10, and has a function of restricting the clockwise rotation position of the auxiliary member 24.

In such a structure, when the tray 1 moves to the attachment / detachment position shown in FIG. 1, a switching operation of a detection switch (not shown) is performed and a rotation stop operation of the electric motor for rotating the drive gear 4 is performed. The control member 10 is shown in FIG.
When it is moved to the second position shown in FIG. 3, the detection switch (not shown) is switched to perform the rotation stop operation of the electric motor that rotates the drive gear 4.

Further, in the above-mentioned structure, the control member 1
Signal reading provided with a turntable on which a disc is placed and an optical pickup that performs a reading action of a signal recorded on the disc by utilizing the sliding displacement operation of 0 and the displacement operation of the sliding member 23. It is configured to perform a displacement operation of a substrate (not shown) to an operating position and a non-operating position.

An insertion hole (not shown) into which the pressing rod 24 is inserted is formed at a position corresponding to the control member 10 on the front panel of the cabinet constituting the disc player of the present invention.

The disk ejecting device of the present invention is constructed as described above. Next, the operation of this structure will be described. The state shown in FIG. 1 shows the state in which the tray 1 is in the disc mounting / removing position, and the tray rack gear 5 formed on the tray 1 in this state.
Are in mesh with the drive gear 4. Further, the displacement member 6 is in the first position shown in FIG. 1, and the control member 10 and the sliding member 23 connected to the displacement member 6 are also in the first position shown in FIG. In such a state, the rack gear 16 formed on the control member 10 does not mesh with the drive gear 4, and the abutting protrusion 21 provided on the elastic portion 22 of the control member 10 is Fixed board 3
It is in a state where it does not come into contact with the control portion 17 formed on the.
The auxiliary teeth 26 formed on the auxiliary member 24 provided on the control member 10 are in a position where they mesh with the drive gear 4.

In such a state, when a disc is placed on the placing portion 2 formed on the tray 1 and an operation switch (not shown) for storing the tray is changed over, a drive current is supplied to the electric motor. To start rotation. When the electric motor starts rotating, its rotational force is transmitted to the drive gear 4 via a transmission mechanism (not shown), and the drive gear 4 is rotationally driven counterclockwise.

When the drive gear 4 rotates counterclockwise, the tray rack gear 5 meshes with the drive gear 4, so that the tray 1 is in the operating position by the rotational drive force of the drive gear 4. It can be moved in the B direction. Further, when such an operation is performed, the auxiliary tooth 26 formed on the auxiliary member 24 is in a position where it meshes with the drive gear 4, but the relationship between the auxiliary tooth 26 and the drive gear 4 is that the meshing relationship is different. Due to the escape relationship, the rotational force of the drive gear 4 does not act on the auxiliary teeth 26.
Therefore, the auxiliary member 2 is driven by the rotational force of the drive gear 4.
The control member 10 provided with 4 is not displaced.

The tray 1 is moved in the direction of arrow B by the rotational driving force of the drive gear 4. When the tray 1 is moved to a predetermined position, the pressing piece 8 formed on the tray 1 is formed on the displacement member 6. The contact pin 9 is abutted. Even after the pressing piece 8 contacts the contact pin 9, the tray 1 is moved in the direction of arrow B by the rotational driving force of the drive gear 4, so that the displacement member 6 is centered on the shaft 7 as shown in FIG. It is rotated and displaced clockwise from the first position shown in FIG.

When the displacement member 6 is rotationally displaced from the first position in the clockwise direction, the control member 10 connected to the displacement member 6 by the connecting pin 15 is in the second position from the first position shown in FIG. It can be moved in the direction of arrow A. Figure 2
Indicates a state where such a moving operation is performed,
The tray rack gear 5 formed on the tray 1 is in mesh with the drive gear 4, and the rack gear 16 formed on the control member 10 is in a position immediately before meshing with the drive gear 4.

When the drive gear 4 further rotates counterclockwise from such a state, the tray 1 is displaced to the operating position which is the direction of arrow B, and the displacement force further displaces the displacement member 6 clockwise. . When the displacement member 6 is rotationally displaced clockwise from the state shown in FIG. 2, the control member 10 moves in the direction of arrow A with the displacement, so that the rack gear 16 formed on the control member 10 is driven. It meshes with the gear 4.

When the rack gear 16 meshes with the drive gear 4, the control member 10 is driven by the rotational driving force of the drive gear 4.
Is slidably displaced in the direction of arrow A. When the sliding displacement operation of the control member 10 in the direction of arrow A by the drive gear 4 is started, the displacement operation of the tray 1 to the operating position is completed, and the tray rack gear formed on the tray 1 is completed. The meshing between 5 and the drive gear 4 is released.

When the control member 10 moves to the second position shown in FIG. 3, the detection switch is switched to stop the rotation of the electric motor, so that the drive gear 4 stops rotating. When the tray 1 is displaced from the attachment / detachment position shown in FIG. 1 to the operating position shown in FIG. 3, the displacement member 6 causes the pressing force of the tray 1 and the control member 1 of the drive gear 4.
The displacement force of 0 causes rotational displacement from the first position to the second position.

When the displacement member 6 is rotationally displaced from the first position to the second position, the sliding member 23 connected to the displacement member 6 by the abutment pin 9 receives a displacement force in the direction of arrow B and is indicated by the arrow. It is displaced to the second position which is the B direction. Further, the control member 10 is also displaced to the second position which is displaced in the arrow A direction from the first position shown in FIG. In this way, when the displacement operation of the tray 1 from the attachment / detachment position to the operating position is performed, the displacement operation of the control member 10 and the sliding member 23 from the first position to the second position is performed. The displacement operation to the operating position of is performed.

Since the mounting operation at the operating position of the disc is performed by the above-described operation, if the reproducing operation is performed in such a state, the reading and reproducing operation of the signal recorded on the disc can be performed.

The displacement operation of the tray 1 from the attachment / detachment position to the operation position is performed as described above. Next, the disk ejection operation will be described. Operation switch (not shown) for taking out when the tray 1 is in the operation position shown in FIG.
When the switching operation is performed, a drive current is supplied to the electric motor to start rotation, but the rotation direction is opposite to that when the tray 1 is stored. When the electric motor starts rotating in this way, its rotational force is transmitted to the drive gear 4 via the transmission mechanism,
The drive gear 4 is driven to rotate clockwise.

When the drive gear 4 rotates clockwise, the drive gear 4 and the rack gear 16 formed on the control member 10 are in mesh with each other, so that the control member 10 is driven by the rotational driving force of the drive gear 4. It is slidably displaced from the second position in the direction of arrow B, which is the first position.

When the control member 10 is displaced in the direction of the arrow B, the displacement member 6 connected to the control member 10 by the connecting pin 15 is displaced from the second position shown in FIG. It is rotated and displaced. In this way, the displacement member 6 is rotationally displaced counterclockwise by the displacement operation of the control member 10 in the direction of the arrow B. When the displacement member 6 is rotated to a predetermined position, the contact pin 9 is pressed by the tray 1. Abut the piece 8.

Since the rack gear 16 formed on the control member 10 is engaged with the drive gear 4 when the contact pin 9 contacts the pressing piece 8, the control member 10 is further displaced in the direction of arrow B. Be punished. As a result, the displacement member 6
Will be further rotated and displaced counterclockwise,
Since the pressing force acts on the pressing piece 8 from the contact pin 9, the tray 1 on which the pressing piece 8 is formed is slidably displaced in the arrow A direction.

When the tray 1 is displaced in the direction of arrow A in this way, the tray rack gear 5 formed on the tray 1 meshes with the drive gear 4 as shown in FIG. The engagement between the rack gear 16 and the drive gear 4 is released.

When the drive gear 4 and the tray rack gear 5 mesh with each other, the rotational driving force of the drive gear 4 is transmitted to the tray 1, so that the tray 1 is moved in the direction of arrow A. When the tray 1 moves to the attachment / detachment position shown in FIG. 1, the switching operation of the detection switch is performed to stop the rotation of the electric motor, so that the drive gear 4 stops rotating.
In this way, the tray 1 is displaced to the attachment / detachment position shown in FIG. 1, so that the disc mounted on the mounting portion 2 can be taken out.

The displacement operation of the tray 1 from the attachment / detachment position to the operation position and the displacement operation from the operation position to the attachment / detachment position by the rotational force of the electric motor are performed as described above. The operation of taking out a certain disk at the time of power failure will be described.

When the disc is in the operating position, that is, when the tray 1 is in the state shown in FIG. 3, the electric motor does not rotate at the time of a power failure even if the operation switch for taking out is changed, so that the tray 1 is attached or detached. It cannot be displaced into position. In such a case, the insertion portion 29 of the pressing rod 28 may be inserted in the arrow B direction into the insertion hole formed in the front panel of the cabinet.

When the insertion portion 29 of the pressing rod 28 is inserted into the insertion hole, the tip portion 30 of the insertion portion 29 is moved to the control member 1.
The end portion 0A of 0 is pressed and abutted. If the pressing rod 28 is pressed in the arrow B direction in such a state, the control member 10 is pressed and displaced in the arrow B direction by the pressing force.

When the control member 10 is displaced in the direction of arrow B, the displacement member 6 connected to the control member 10 by the connecting pin 15 moves in the counterclockwise direction which is the first position from the second position shown in FIG. It can be rotated and displaced. In this way, the displacement member 6 is rotationally displaced counterclockwise by the displacement operation of the control member 10 in the direction of the arrow B. When the displacement member 6 is rotated to a predetermined position, the contact pin 9 is pressed by the tray 1. Abut the piece 8.

When the pressing rod 28 is further pressed and inserted in the direction of arrow B, the displacement force causes the control member 10 to move to arrow B.
The displacement member 6 is further displaced in the counterclockwise direction while being displaced in the direction. As a result, the displacement force of the displacement member 6 acts on the pressing piece 8 from the connecting pin 9, so that the tray 1 on which the pressing piece 8 is formed is indicated by the arrow A.
It is pressed and displaced in the direction.

When the tray 1 is displaced in the direction of the arrow A by such an operation, the tray rack gear 5 formed on the tray 1 meshes with the drive gear 4. At this time, it is provided on the control member 10. The auxiliary teeth 26 formed on the auxiliary member 24 are in mesh with the drive gear 4 (FIG. 2).

When the pressing rod 28 is further inserted in the direction of arrow B from such a state, the displacement force causes the control member 10 to be displaced in the direction of arrow B and the displacement member 6 to be rotationally displaced counterclockwise. When the control member 10 is displaced in the direction of arrow B, the drive gear 4 is rotated clockwise by the meshing operation of the auxiliary tooth 26 and the drive gear 4.

When the drive gear 4 rotates clockwise in this way, the tray rack gear 5 meshes with the drive gear 4, so that the tray 1 is displaced by the rotational force of the drive gear 4 in the direction of arrow A. Will be received. Therefore, the tray 1 is displaced in the arrow A direction by the combined force of the displacement force in the arrow A direction received from the displacement member 6 and the displacement force in the arrow A direction received from the drive gear 4.

FIG. 4 shows a state in which such an operation is performed. As is clear from the figure, the front end portion 1 of the tray 1 is shown.
A projects forward from the front panel of the cabinet that constitutes the disc player. Therefore, in such a state, if the user holds the front end portion 1A of the tray 1 by hand and pulls it out forward, the tray 1 is displaced to the attachment / detachment position shown in FIG. Therefore, the disk placed on the tray 1 can be taken out. In this way, the disk ejecting operation can be performed without any trouble even during a power failure.

In the above-described embodiment, the control member 10 is displaced by pressing with the pressing rod 28. However, the displacing member 6 is provided with the recess 6A (FIG. 4) for pressing.
The displacing member 6 can also be configured to be rotationally displaced from the second position to the position shown in FIG. 4 by pressing the concave portion 6A with the pressing rod 28.

Further, when the disc clamping operation is performed by utilizing the displacement operation of the control member 10, the control member 10 can be used for two operations of a clamp control operation and a disc ejecting operation. Has the effect of being easy.

As described above, the sliding displacement operation of the control member 10 between the first position and the second position is performed in accordance with the movement operation of the tray 1. The rack gear formed on the control member 10 When 16 moves to a position just before meshing with the drive gear 4, the contacting protrusion 21 causes the contacting protrusion 21 to move to the first inclined portion 1 of the controller 17.
Contact 9 As a result, a load is applied to the sliding displacement operation of the control member 10. Therefore, when the rack gear 16 is not in mesh with the drive gear 4, the rack gear 16 and the drive gear 4 mesh with each other even if the control member 10 is displaced in the direction of arrow A by external vibration. It is possible to prevent malfunction. In addition, the control member 1 is driven by the meshing operation of the auxiliary gear 26 formed on the auxiliary member 24 and the drive gear 4.
If a load is applied to the sliding displacement operation of 0, it is possible to prevent an erroneous meshing operation between the rack gear 16 and the drive gear 4.

[0045]

According to the present invention, when the tray on which the disk is placed is in the operating position, the control member is slidably displaced from the second position toward the first position by the pressing rod inserted from the outside. Since the disk is displaced in the attaching / detaching position, the disk can be easily taken out without any trouble even during a power failure.

Further, when the control member is moved by the operation of taking out the disc with the pressing rod, the drive gear is rotated by the auxiliary teeth formed on the auxiliary member provided in the control member, and the rotation of the drive gear is performed. Since the force is used as the displacement force of the tray, the present invention has an effect that the operation force for taking out can be reduced. Further, according to the present invention, the disc clamping operation is performed by the displacement operation of the control member.
It has an advantage that the structure is simple as compared with the case where separate members are provided.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a tray is in a detachable position.

FIG. 2 is a plan view showing a state where the tray has moved part way.

FIG. 3 is a plan view showing a state in which the tray is in an operating position.

FIG. 4 is a plan view showing a state where a disc take-out operation is performed.

[Explanation of symbols]

 1 Tray 3 Fixed Substrate 4 Drive Gear 5 Tray Rack Gear 6 Displacement Member 10 Control Member 16 Rack Gear 24 Auxiliary Member 26 Auxiliary Tooth 28 Pressing Rod

Claims (2)

[Claims] 1. A disc player provided with a tray on which a disc is placed and which is slidably displaced between a mounting / demounting position and an operating position of the disc by a rotational force of an electric motor, from a mounting / demounting position of the tray to an operating position. Of the drive gear that is rotationally driven by the electric motor during the displacement operation of the device and during the displacement operation from the operation position to the attachment / detachment position, and the tray is formed between the tray and the position immediately before the attachment / detachment position and the operation position. When the tray rack gear is engaged with the drive gear and is disengaged from the drive gear when the tray is in the operating position, the tray rack gear is displaceably attached to the fixed substrate and the tray is attached / detached and operated. When the tray is in the first position and the second position, and when the tray is displaced from the attachment / detachment position to the operating position, the tray is displaced A displacement member that is displaced from the first position toward the second position by a force, and is slidably attached to the fixed substrate and connected to the displacement member so that the displacement member slides at the first position and A control member located at the first position and the second position when in the second position, and the control member formed on the control member and associated with the displacement operation of the displacement member from the first position toward the second position. Is rotatably provided on the control member and the rack gear that meshes with the drive gear when the slide member is slidably displaced to a predetermined position, and the control member is slidably displaced from the second position toward the first position. When the tray is in the operating position, the control member is slid in the first position direction from the second position by a pressing rod inserted from the outside when the tray is in the operating position. Upset By displacing the displacement member, the displacement force of the displacement member displaces the tray in the attachment / detachment position direction to engage the tray rack gear with the drive gear and to form the control member and the auxiliary member. A disc take-out device for a disc player, wherein the drive gear is rotated by meshing of a rack gear and auxiliary teeth with the drive gear. 2. The disc ejecting apparatus according to claim 1, wherein the disc clamping operation is controlled by the displacement operation of the control member.