JP2589801B2 - Disc player - Google Patents

Description

The present invention relates to a disk transport member that transports a disk between an unloading position and a loading position, and a disk that rises after the disk is loaded by the disk transport member. The present invention relates to a disk player having a disk drive mechanism that receives a disk from a transport member and reads information while rotating the disk.

[Conventional technology]

2. Description of the Related Art Conventionally, an optical reproducing apparatus such as a compact disk player is generally positioned as a high-end product, and loading and unloading of a disk to and from the apparatus is usually automatically performed electrically in a tray type. That is, a disk transport member such as a disk tray having a disk mounting portion is driven by a motor via a speed reduction mechanism.

On the other hand, in recent years, with the arrival of the popularization period, there has been proposed a type in which a disk transport member is manually loaded into a player for the purpose of providing a disk player with a simpler structure and a lower cost (Japanese Patent Application Laid-Open No. H10-157572). See JP-A-62-250549).

In the above-described automatic or manual disk player, a disk drive mechanism having a turntable for rotating the disk and an optical pickup for reading information on the disk after the disk is loaded by the disk transport member is provided. It moves upward to receive a disk from the disk transport member.

[Problems to be solved by the invention]

However, in the above-mentioned disc player, since the disc drive mechanism is generally quite large, there is a problem in that the disc player also becomes larger.

In addition, since the width of the disk drive mechanism is wide, the turntable and the optical pickup on the disk drive mechanism only fit into the holes of the disk transport member when the disk drive mechanism rises to receive the disk from the disk transport member. Even when the disk drive mechanism is raised, the lower part of the disk drive mechanism is located below the disk transport member. Therefore, the thickness of the disc player is increased, which is one of the causes of further increasing the size of the disc player.

[Means for solving the problem]

In order to solve the above-mentioned problems, a disc player according to claim 1 in the claims section of this specification has a player main body and a disc mounting portion, and a disc unloading position is set by the player main body. And a turntable for mounting and rotating the disk and an optical pickup for reading information on the disk, and the disk transfer member is located at the unloading position. At some point, the player body moves up and down so that it is located at a lower position, which is a non-engagement position with the disk, and is moved to an upper position, which is an engagement position with the disk, as the disk transport member moves to the carry-in position. In a disk player provided with a freely supported disk drive mechanism, the disk drive mechanism is provided near the turntable and the disk drive mechanism. Toward the widthwise center of the click drive mechanism, it is characterized in that the feed motor of the optical pickup is placed.

Further, a disc player according to claim 2 has a player main body, a disc mounting portion, and a disc carrying member movably supported by the player main body between a carry-out position and a carry-in position of the disc; It has a turntable for mounting and rotating the disk and an optical pickup for reading information on the disk, and is located at a lower position that is a non-engagement position with the disk when the disk transport member is at the unloading position, A disc drive mechanism supported by the player body so as to be able to move up and down so as to be moved to an upper position, which is an engagement position with the disc, with movement of the disc transport member to the carry-in position; A disc player provided between the disc drive mechanism and a vibration isolating rubber for preventing vibration of the disc drive mechanism; In the vicinity of the down table, it is characterized in that the feed motor of the optical pickup so that the weight in the width direction on both sides around the center position in the width direction of the disc drive mechanism is substantially equal are disposed.

Further, a disc player according to claim 3 has a player main body, a disc mounting portion, and a disc transport member movably supported by the player main body between a carry-out position and a carry-in position of the disc; It has a turntable for mounting and rotating the disk and an optical pickup for reading information on the disk, and is located at a lower position that is a non-engagement position with the disk when the disk transport member is at the unloading position, The disk player provided with a disk drive mechanism supported by the player body so as to be able to move up and down so as to be moved to an upper position which is an engagement position with the disk with movement of the disk transport member to the carry-in position. An optical pickup feed motor is provided on the disk drive mechanism, and a worm is attached to the output shaft of this feed motor. A screw hole is formed in the optical pickup, a screw shaft is rotatably screwed with the screw shaft, and a worm wheel meshing with the worm is attached to the screw shaft. is there.

[Action]

According to the first aspect of the present invention, since the feed motor of the optical pickup is disposed near the center of the disk drive mechanism in the width direction, the feed motor protrudes in the width direction of the disk drive mechanism, and The width of the mechanism does not increase. Further, since the feed motor is arranged near the turntable, even if the feed motor is near the center in the width direction of the disk drive mechanism,
If the disk drive mechanism is separated from the turntable, the length of the disk drive mechanism in the depth direction becomes longer. Therefore, the size of the disk drive mechanism can be reduced.

According to the second aspect of the present invention, the optical pickup is provided near the turntable on the disk drive mechanism so that the weights on both sides in the width direction centering on the widthwise center position of the disk drive mechanism are substantially equal. The position of the anti-vibration rubber to prevent vibration of the disk drive mechanism while the disk is supported by the disk drive mechanism is adjusted by moving the disk transport member around the turntable. Since the positions can be symmetrical in a direction perpendicular to the direction, the width of the disk drive mechanism can be reduced, and the size can be reduced.

According to the third aspect of the present invention, a worm is attached to an output shaft of a feed motor of the optical pickup, and a screw shaft is rotatably screwed into a screw hole provided in the optical pickup. Since the worm wheel attached to the worm meshes with the worm, the driving force of the feed motor can be transmitted to the optical pickup by a simple gear transmission mechanism consisting only of the worm and the worm wheel, reducing the space and reducing the disc space. This is advantageous in reducing the size of the drive mechanism.

〔Example〕

One embodiment common to the inventions of claims 1 to 3 in the claims section of this specification will be described below with reference to FIGS. 1 to 8.

The compact disk player in this embodiment is of a type in which a compact disk is manually loaded into the apparatus, and as shown in FIG. 2, a chassis 1 as a part of a player main body and a chassis 1 on the chassis 1. The CD 2 is supported so as to be able to move up and down in the direction of the arrow I or J.
A CD drive mechanism 3 as a disk drive mechanism for reading the above information, a lifting plate 4 for moving the CD drive mechanism 3 up and down by moving in the direction of arrow EF on the chassis 1, and a CD
2, a disk tray 5 as a disk transport member that reciprocates between a carry-out position (FIG. 3) and a carry-in position (FIG. 6) on the chassis 1.

 Hereinafter, the configuration of each unit will be described in detail.

As shown in FIG. 3, a pair of side plates 6 and 7 facing each other are attached to both ends of the chassis 1. An elevating plate 4 is arranged on the chassis 1 between the side plates 6 and 7. After the elevating plate 4 is arranged on the chassis 1, the right side plate 7 is formed such that the right end of the elevating plate 4 on which a rack 13 described later is mounted is provided with an escape groove 7 a provided at the lower end of the side plate 7. It is attached to the chassis 1 so as to protrude outside the side plate 7 via 7a.

Guide pins 1a are provided on the chassis 1,
These guide pins 1a are fitted in guide holes 4a formed in the lifting plate 4 and extending in the direction of arrow EF. As a result, the lifting plate 4 is positioned in the guide hole 4a.
・ 4a… E on the chassis 1 with a stroke corresponding to the length
Alternatively, it can be moved in the F direction.

As shown in FIG. 5, the lifting plate 4 has an arrow EF.
A plurality of standing wall portions 4b extending in the direction are formed.
Each standing wall 4b has a regulating recess 4c and a regulating recess 4c.
There is provided a release recess 4d provided in a lower position at a position closer to the direction, and an inclined recess 4e extending therebetween. In any of the recesses 4c to 4e of each upright wall 4b,
A regulation pin protruding horizontally from the side of the CD drive mechanism 3
3a is movably fitted.

When the lifting plate 4 is located at the end in the direction E and each of the regulating pins 3a is located in the regulating recess 4c, the CD drive mechanism 3 can be engaged with the CD2 in an upper position (FIG. 8). When the elevating plate 4 is located at the end in the direction F and the regulating pins 3a are located in the release recesses 4d, the CD drive mechanism 3 is not engaged with the CD2 (see FIG. 5). ). The elevating plate 4 is moved in the direction E by a spring 8 stretched between a spring hook 4f integrally provided outside the side plate 7 and a spring hook 7b of the side plate 7, that is,
The CD drive mechanism 3 is urged to move up.

As shown in FIG. 7, a fulcrum shaft 7c extending in the horizontal direction is provided outside the side plate 7. The fulcrum shaft 7c has a spring
The unloading operation lever 11 is fitted with the unloading operation lever 11, and the stopper 12 prevents the unloading operation lever 11. One end of the spring 10 is locked by a spring hook 7d of the side plate 7, and the other end is locked by a spring hook 11a of the unloading operation lever 11, whereby the unloading operation lever 11 is
Are urged in the C direction. The unloading operation lever 11 is provided with an operation unit 11b for pressing down with a finger, that is, in the D direction. The side plate 7 has an operation lever for carrying out.
An abutting portion 7j is provided for limiting the amount of rotation of the unloading operation lever 11 in the C direction by the urging force of the spring 10 by abutting on the pressing portion 11c of the eleventh embodiment.

At the end of the elevating plate 4 located outside the side plate 7 in the direction E, a contact portion 4g bent upward is provided. The contact part 4g is located at the unloading position and the unloading operation lever
It comes into contact with the 11 pressing portions 11c. And
When the unloading operation lever 11 is rotated in the direction D by the operation portion 11b, the contact portion 4g is pressed in the direction F by the pressing portion 11c, and the lifting plate 4 is moved in the direction F against the urging force of the spring 8. The CD drive mechanism 3 is configured to move down.

A rack 13 is mounted on the right end of the lifting plate 4 located outside the side plate 7. Above the rack 13, a damper member 14 rotatably supporting a gear 14 a meshing with the rack 13 is attached to the side plate 7 with screws 15, which are screwed into screw holes 7 e, 7 e. This allows
The movement of the lifting plate 4 in the EF direction is buffered by the damper member 14 and is performed gently.
Is designed to rise and fall slowly.

As shown in FIG. 6, a vertically extending fulcrum pin is provided at the right corner at the end of the chassis 1 in the F direction.
1e is provided. A first lock lever 16 is rotatably inserted into the fulcrum pin 1e through an insertion hole 16a.
A spring 17 is inserted into the fulcrum pin 1e below the lock lever 16. One end of the spring 17 is locked by a spring hook 16b of the first lock lever 16, and the other end is an end 7f of the side plate 7 in the F direction.
The first lock lever 16 by the arrow A
Biased in the direction.

The first lock lever 16 has an engaging portion 16c protruding downward.
The engaging portion 16c is engaged with a lock portion 4h formed on the elevating plate 4 to hold the elevating plate 4 at the moving end in the F direction against the urging force of the spring 8. (See FIG. 3). In the vicinity of the lock portion 4h of the elevating plate 4, when the engagement portion 16c of the first lock lever 16 is disengaged from the lock portion 4h, the engagement portion 16c
There is provided an abutting portion 4i with which the abutment contacts. The first lock lever 16 is provided with an abutting portion 16d, and the abutting portion 16d can abut on an end face 5i located at an end of the disc tray 5 in the F direction.

As shown in FIG. 5, the CD drive mechanism 3 has a plurality of mounting holes 3b. Each mounting hole 3b is fitted to a holding pin 1b provided upright on the chassis 1 via a sleeve 19 so as to be movable up and down. At the lower end of the sleeve 19, the mounting hole 3b
A larger diameter flange 19a is provided, and the flange 19a is located below the mounting hole 3b. A CD drive mechanism 3 is provided around the outer periphery of the holding pin 1b between the flange 19a and the chassis 1.
The chucking spring 18 for urging in the I direction is inserted.

Above the flange 19a on the outer periphery of each sleeve 19, a mounting portion 20a is attached to the mounting hole 3b of the CD drive mechanism 3 and is held at the upper side of the CD drive mechanism 3 in a cylindrical vibration isolating rubber.
20 are located. The anti-vibration rubber 20 has an axial length such that the upper end portion 20b bent in the vertical direction is located slightly above the upper end portion of the sleeve 19 in the free state shown in FIG. A washer 21 is fitted to the holding pin 1b above the vibration isolating rubber 20, and an E-ring 22 for preventing the washer 21 from being detached is attached to the upper end of the holding pin 1b.

Restriction holes 3c (see FIG. 3) are provided at both corners of the end of the CD drive mechanism 3 in the F direction. Each restriction hole 3c is fitted with a slight margin to a restriction pin 1c provided on the chassis 1 so that the vibration of the CD drive mechanism 3 in a horizontal plane is restricted by the restriction pins 1c.

The CD drive mechanism 3 is provided with a turntable 23 for supporting and rotating the CD2, and an optical pickup 24 for reading an optical signal on the CD2. The turntable 23 is attached to an output shaft 29a of the motor 29. The turntable 23 has a lower support 23a for supporting a lower portion of the CD2.
And a slope portion 23b that fits into a chucking hole 2a provided in the center of the CD 2 with the rise of the CD drive mechanism 3 and performs centering while absorbing the displacement of the CD 2, and an upper end portion of the slope portion 23b. , And a suction plate 23c that suction-holds CD2 with a magnet 27c of a clamp member 27 described later.

Above the turntable 23, a base frame 25 is provided on the upper surfaces of the side plates 6 and 7 through the mounting holes 25a.
7 are screwed into the screw holes 6a, 6a, 7g, 7g. A hole 25b is provided in the center of the base frame 25, and the clamp member 27 is rotatably supported in the hole 25b.

The clamp member 27 includes a pressing portion 27a for pressing the CD2 onto the lower support 23a of the turntable 23, an inclined concave portion 27b into which the inclined portion 23b of the turntable 23 is fitted, and inserted into a central portion of the clamp member 27. And the suction plate of the turntable 23
A magnet 27c that attracts 23c by magnetic force and holds the CD2 between the turntable 23 and a fall prevention plate that is supported on the upper surface of the base frame 25 around the hole 25b to prevent the clamp member 27 from falling. 27d.

As shown in FIG. 1, the CD drive mechanism 3 includes a screw shaft 3d extending in the EF direction for feeding the optical pickup 24. The screw shaft 3d is rotatably supported by a pair of bearings 3e and 3f. . The screw shaft 3d is rotatably screwed into a screw hole 24a of the optical pickup 24, and a guide shaft 3g extending parallel to the screw shaft 3d is movably fitted into the hole 24b of the optical pickup 24.

A worm wheel 3h is attached to an end of the screw shaft 3d in the E direction. On the side of the worm wheel 3h, a motor mounting portion 3i is provided upright on the CD drive mechanism 3, and a feed motor 3j of the optical pickup 24 is mounted on the motor mounting portion 3i by means of female screws 38. Feed motor 3j
Are arranged near the turntable 23 in the moving direction of the disk tray 5, that is, in the EF direction. In addition,
The installation position of the feed motor 3j is substantially the same as the direction of the arrow GH perpendicular to the moving direction of the disc tray 5, that is, the weight of the CD drive mechanism 3 on both sides in the width direction centered on the center position in the width direction of the disc tray 5. It is set to a position that is equal. In this embodiment, specifically, the feed motor 3j
Is mounted at a substantially central position in the width direction of the CD drive mechanism 3. A worm 3k is provided on an output shaft of the feed motor 3j, and the worm 3k is meshed with a worm wheel 3h. Then, the screw shaft 3d is rotated in either direction by the feed motor 3j, and with the rotation of the screw shaft 3d, the optical pickup 24 is driven on the CD drive mechanism 3 along the screw shaft 3d and the guide shaft 3g by E or It moves in the F direction.

As described above, the feed motor 3j is mounted in the immediate vicinity of the turntable 23, and the transmission of power from the feed motor 3j to the screw shaft 3d is performed by a minimum gear transmission mechanism including only the worm 3k and the worm wheel 3h. Since it is used, the space can be reduced, and the weight of the feed motor 3j is equally distributed to both sides in the width direction of the CD drive mechanism 3 so that the width of the CD drive mechanism 3 can be reduced. The weight on both sides in the direction is almost equal, and the mounting position of the vibration isolating rubbers 20 can be symmetrical with respect to the center of the turntable 23. Therefore, the width of the CD drive mechanism 3 is reduced and the size is reduced. can do. Thus, when the CD drive mechanism 3 is lifted, the entire CD drive mechanism 3 is inserted into an escape hole 5c of the disc tray 5, which will be described later, so that the disc player can be made thinner.

As shown in FIG. 3, guide grooves 5a extending in the EF direction are formed at both end portions of the disk tray 5.
The guide grooves 5a, 5a are slidably fitted on guide pieces 6b, 7h provided on the upper inside of the side plates 6, 7, respectively. Thus, the disk tray 5 is supported by the chassis 1 so as to be reciprocally movable in the E or F direction between the carry-out position and the carry-in position.

A fulcrum shaft 6c extending in the horizontal direction is provided inside the side plate 6, and a pulley 28 is rotatably fitted to the fulcrum shaft 6c. Inside the pulley 28, the fulcrum shaft 6c is further provided with a spring 3
0, the washer 31 is attached, and the E-ring 32 prevents it from coming off. The pulley 28 is given resistance to rotation by the urging force of the spring 30.

One end of an unloading spring 33 is locked to a spring hook 1d of the chassis 1. The unloading spring 33 is wound around the outer periphery of the pulley 28 and changes direction, thereby forming a substantially U-shape. It is locked by a spring hook pin 5b provided on the tray 5. The disc tray 5 is urged in the direction E by the unloading spring 33. Note that the pulley 28 is engaged with the unloading spring 33 by engaging the pulley 28 with the unloading spring 33.
A plurality of grooves 28a are formed to prevent slippage between them.

As described above, since the unloading spring 33 is formed in a U-shape by passing through the pulley 28, the unloading spring 33 having a long free length can be used to reduce the spring constant. . Therefore, the disk tray 5 is moved out of the unloading spring 33.
Can be sufficiently reduced when manually moving in the F direction against the urging force, and the fluctuation of the operation force can be reduced.

Further, since the unloading spring 33 is wound around the pulley 28 to which resistance against rotation is given by the spring 30, expansion and contraction of the unloading spring 33 causes the pulley 28 having a function as a damper.
Buffered. As a result, the movement of the disc tray 5 in the direction E based on the urging force of the unloading spring 33 becomes gentle.

A screw 34 engageable with the spring pin 5b of the disc tray 5 is screwed into the screw hole 6d of the side plate 6 so as to protrude inside the side plate 6. Thereby, the disc tray 5
Is moved in the direction E by a predetermined stroke, the spring hook pin 5b engages with the female screw 34, so that the amount of movement of the disk tray 5 in the direction E is restricted.

The disc tray 5 is provided with an escape hole 5c for avoiding interference between the CD drive mechanism 3 and the disc tray 5 due to the elevation of the CD drive mechanism 3 at the carry-in position. Escape hole
A storage section 5d for storing the CD2 is provided around 5c. The storage section 5d is formed slightly larger than the outer shape of the CD2. Further, an inclined receiving portion 5e as a disc mounting portion for receiving a lower portion of the CD 2 is formed around the storage portion 5d.

On both sides of the receiving portion 5e, notches 5f and 5f are provided at both end portions of the disc tray 5 to avoid interference between the CD2 and the side wall portion of the disc tray 5 and to smoothly mount and remove the CD2. Have been. In the inner wall of the side plates 6, 7 facing the notches 5f, 5f at the loading position of the disc tray 5, a notch 6e for avoiding interference between the CD2 and the side plates 6, 7 during rotation of the CD2.・ 7i is formed.

A spring 35 is inserted above the first lock lever 16 at the fulcrum pin 1e. A second lock lever 36 is rotatably inserted above the spring 35 at the insertion hole 36a.
The ring 37 prevents it from coming off. The spring 35 is stretched between a spring hook 16e of the first lock lever 16 and a spring hook 26b of the second lock lever 36, whereby the second lock lever 36 is biased in the direction of arrow B, The first lock lever 16 is urged in the direction of arrow A. The second lock lever 36 is configured such that the contact portion 36c has a spring hook 16e of the first lock lever 16.
Contact with the first lock lever 16
The amount of rotation in the direction is regulated.

The second lock lever 36 is provided with a hook-shaped lock portion 36d. The lock portion 36d is engaged with a lock groove 5h formed on the right side wall portion of the disc tray 5 when the disc tray 5 is at the carry-in position. Thus, the disc tray 5 is held at the carry-in position against the urging force of the carry-out spring 33.

In the above configuration, in the state shown in FIGS. 3 to 5, the disc tray 5 is at the carry-out position, and the spring hook pin 5b is in contact with the female screw 34 as described above.

At this unloading position, the lifting plate 4 is moved by the engagement of the engagement portion 16c of the first lock lever 16 with the lock portion 4h.
The movement in the direction E due to the urging force of the spring 8 is prevented, and the spring 8 is located at the moving end in the direction F.

Accordingly, in the CD drive mechanism 3, each of the restriction pins 3a has a release recess.
It is held in the lower position by being located in 4d. Therefore, the turntable 23 on the CD drive mechanism 3
Even if the disc tray 5 moves in the F direction and the CD2 is carried in, the turntable 23 does not contact the disc tray 5 and the CD2 moving in the F direction.

At the position below the CD drive mechanism 3, only the chucking spring 18 is bent,
No load is applied to, and it is simply held on the CD drive mechanism 3. At this time, the upper end 20 of the vibration isolating rubber 20
b is located slightly higher than the upper end of the sleeve 19.

Further, although the clamp member 27 is lowered by its own weight, the fall prevention plate 27d is in a state of contact with the upper surface of the base frame 25,
In this state, even if the CD 2 is carried in by the disc tray 5, the pressing portion 27a of the clamp member 27 moves the CD 2 moving in the F direction.
It is designed not to touch.

In the above-mentioned unloading state, CD2 is received in the receiving portion 5 of the disc tray 5.
e, the disc tray 5 on which the CD 2 is placed is manually pressed in the direction of arrow F against the urging force of the unloading spring 33, and is moved from the unloading position shown in FIGS. 8 to the carry-in position shown in FIG. Then, the end surface 5i of the disc tray 5 comes into contact with the contact portion 16d of the first lock lever 16 slightly before the end of the moving stroke of the disc tray 5, and thereafter, the disc tray 5 moves in the F direction. Accordingly, the first lock lever 16 rotates in the direction of arrow B against the urging force of the spring 17. Accordingly, the second lock lever 36 is
When the disc tray 5 moves to the carry-in position, the second lock lever 36
Is rotated in the direction B, and the lock portion 36d is
And the disc tray 5 is locked at the carry-in position.

Also, with the rotation of the first lock lever 16 in the B direction,
The engaging portion 16c is disengaged from the lock portion 4h of the elevating plate 4 and comes into contact with the contact portion 4i.
The rotation in the direction ends. When the engaging portion 16c is disengaged from the lock portion 4h, the lock at the moving end of the lifting plate 4 in the direction F by the first lock lever 16 is released. It starts to move in the E direction due to power.

As the elevating plate 4 moves in the direction E, the rule pins 3a of the CD drive mechanism 3 move from the releasing recesses 4d of the elevating plate 4 to the inclined recesses 4e, and further within the inclined recesses 4e, the regulating recesses. Go to 4c. As a result, the CD drive mechanism 3 moves in the I direction within the relief hole 5c of the disc tray 5 by the urging force of the chucking spring 18. At that time, lift plate 4
Is moved in the direction E, the movement of the lifting / lowering plate 4 in the direction E is slow, and the movement of the CD drive mechanism 3 in the direction I is also gentle. Done.

With the movement of the CD drive mechanism 3 in the I direction, first, the slope 23b of the turntable 23 is engaged with the chucking hole 2a of the CD2. When the CD drive mechanism 3 is further raised, the inclined surface portion 23b engages with the inclined concave portion 27b of the clamp member 27 and the magnet 23
The CD2 is chucked by the suction force between the suction plate 27c and the suction plate 23c (see FIG. 8). Thereafter, when the CD drive mechanism 3 further moves up, the fall prevention plate 27d separates from the base frame 25 and
5 is formed. In this state, the regulating pin 3a of the CD drive mechanism 3 is fitted into the regulating recess 4c, and reaches the highest position.

When the CD drive mechanism 3 reaches the highest position, the sleeve 19 comes into contact with the E-ring 22 via the washer 21 with the extension of the chucking spring 18, and the upper end 20 b of the vibration-proof rubber 20 comes into contact with the washer 21. The contact causes a slight bending. The deformation of the rubber cushion 20 ends when the upper end of the sleeve 19 contacts the washer 21. Accordingly, the amount of deformation of the vibration isolating rubber 20 is regulated by the sleeve 19 and is always constant, so that the height of the CD drive mechanism 3 in a state where the CD 2 is chucked is always constant, and the CD 2 is reliably held.

In the above chucking state, the CD driving mechanism 3, the CD2 and the clamp member 27 are connected to the chucking spring 18 and the vibration isolating rubber 20.
As a result, it is independently and integrally floated from the chassis 1 and the like. Thereby, vibration resistance to vibration that may occur in the chassis 1 and the like is provided. Here, the relative vibration of the CD drive mechanism 3 with respect to the chassis 1 etc.
This occurs within the gap between the regulating hole 3c and the regulating pin 1c and between the regulating hole 3c and the regulating pin 1c. In the above-mentioned floating state, the signal on the CD2 is read by the optical pickup 24 while the CD2 is rotated by the turntable 23.

As described above, when the CD 2 is mounted on the disc tray 5 and the disc tray 5 is manually moved in the F direction and loaded, the CD drive mechanism 3, the CD 2 and the clamp member 27 float independently of the chassis 1 and the like. , And has anti-vibration performance.

When the disc tray 5 is manually moved to the carry-in position, the elevating plate 4 automatically moves in the E direction and the CD is moved.
Since the configuration is such that the drive mechanism 3 and the clamping member 27 chuck the CD2, the operation is also simple.

Further, with the movement of the disc tray 5 in the F direction,
When the first lock lever 16 starts rotating in the B direction, the spring
The second lock lever 36 can be rotated in the direction B by the lock 35, and the lock portion 36d is positioned on the right side of the disc tray 5 before the lock portion 36d of the second lock lever 36 reaches the locking groove 5h of the disc tray 5. The lock portion 36d is locked at the loading position of the disk tray 5 by the second lock lever 36 as soon as the lock portion 36d reaches the lock groove portion 5h.

Further, as described above, the movement of the lifting plate 4 in the direction E is buffered by the damper member 14 and is performed gently. Therefore, the CD drive mechanism 3 is also slowly raised.
The turntable 23 does not damage the CD2 during chucking, and noise during loading can be reduced.

Next, an operation for moving the disk tray 5 from the carry-in position to the carry-out position will be described.

In order to unload the disc tray 5 from the state shown in FIGS. 6 to 8, when the operating portion 11b of the unloading operation lever 11 is pressed in the direction of arrow D, the unloading operation lever 11 is moved to the loading position.
Contact portion 4 of the lifting plate 4 in contact with the pressing portion 11c
g is pressed in the F direction by the pressing portion 11c with the rotation of the unloading operation lever 11 in the D direction, whereby the lifting plate 4 moves in the F direction against the urging force of the spring 8. .

Then, each regulating pin 3a of the CD drive mechanism 3 moves from the regulating recess 4c of the elevating plate 4 to the release recess 4d via the inclined recess 4e. Along with that, a spring for chucking
The CD drive mechanism 3 moves in the arrow J direction against the urging force of 18. As the CD drive mechanism 3 moves in the J direction, the fall prevention plate 27d of the clamp member 27 comes into contact with the upper surface of the base frame 25, and the CD caused by the magnetic force between the turntable 23 and the clamp member 27.
The chucking state of 2 is released. Thereafter, when the CD drive mechanism 3 further moves in the J direction, the CD 2 is placed on the receiving portion 5e of the disk tray 5, the engagement between the CD 2 and the turntable 23 is released, and the CD 2 reaches the lowest position. .

As the CD drive mechanism 3 moves down, the lifting plate 4
When the first lock lever 16 is rotated in the direction A by the urging force of the spring 17, the engaging portion 16c engaged with the contact portion 4i of the lifting plate 4 is moved. Engagement with the lock portion 4h locks the lifting plate 4 at the moving end in the F direction.

Also, since the contact portion 36c of the second lock lever 36 is in contact with the spring hook 16e of the first lock lever 16, the second lock lever 36 rotates in the direction A as the first lock lever 16 rotates.
Also rotates in the A direction. As a result, the lock portion 36d is disengaged from the lock groove 5h of the disk tray 5, and the lock of the disk tray 5 at the carry-in position is released. as a result,
The disc tray 5 moves in the E direction with CD2 by the urging force of the unloading spring 33, and reaches the unloading position. Here, as described above, the contraction of the unloading spring 33 is buffered by the pulley 28 whose rotational speed is reduced by the urging force of the spring 30, and the contraction of the unloading spring 33 is performed gently. Done. In that case, the groove 28 provided in the pulley 28
The slippage between the pulley 28 and the unloading spring 33 is prevented by a.28a, so that the buffering by the pulley 28 is further ensured.

As described above, since the CD 2 is carried out after the CD drive mechanism 3 is lowered and the CD drive mechanism 3 and the CD 2 are brought into a non-contact state, the CD 2 is not damaged by the carry out, and The CD2 can be easily carried out only by operating the carry-out operation lever 11.

In the above embodiment, the loading / unloading of the disc tray 5 is performed.
Although the disc player which carries out unloading manually and by the urging force of a spring has been described, the present invention is also applicable to a disc player in which the loading and unloading of the disc tray 5 is automatically performed by a motor.

〔The invention's effect〕

As described above, the disc player according to claim 1 in the claims section of this specification has the player main body and the disc mounting portion, and the disc main body and the disc loading / unloading position are determined by the player main body. A disk transport member movably supported between the optical disk and a turntable for mounting and rotating the disk and an optical pickup for reading information on the disk; And is supported by the player body so as to be able to move up and down so as to be moved to an upper position which is an engagement position with the disk in accordance with the movement of the disk carrying member to the carry-in position. A disk drive provided with a disk drive mechanism provided near the turntable on the disk drive mechanism and the disk drive mechanism. Near the center of kicking the width direction, is configured to feed motor of the optical pickup is placed.

Thus, the feed motor of the optical pickup does not protrude in the width direction and the depth direction on the disk drive mechanism, and the disk drive mechanism can be downsized.

Further, a disc player according to claim 2 has a player main body, a disc mounting portion, and a disc carrying member movably supported by the player main body between a carry-out position and a carry-in position of the disc; It has a turntable for mounting and rotating the disk and an optical pickup for reading information on the disk, and is located at a lower position that is a non-engagement position with the disk when the disk transport member is at the unloading position, A disc drive mechanism supported by the player body so as to be able to move up and down so as to be moved to an upper position, which is an engagement position with the disc, with movement of the disc transport member to the carry-in position; A disc player provided between the disc drive mechanism and a vibration isolating rubber for preventing vibration of the disc drive mechanism; In the vicinity of the down table is configured such that the feed motor of the optical pickup so that the weight in the width direction on both sides around the center position in the width direction of the disc drive mechanism is substantially equal are disposed.

Thereby, the installation position of the feed motor of the optical pickup is set near the turntable on the disk drive mechanism so that the weights on both sides in the width direction centering on the width direction center position of the disk drive mechanism are substantially equal. Therefore, the mounting position of the anti-vibration rubber for preventing the vibration of the disk drive mechanism in a state where the disk is supported by the disk drive mechanism can be a symmetrical position in the width direction of the disk drive mechanism. Can be reduced in size by reducing the lateral width of the device.

Further, a disc player according to claim 3 has a player main body, a disc mounting portion, and a disc transport member movably supported by the player main body between a carry-out position and a carry-in position of the disc; It has a turntable for mounting and rotating the disk and an optical pickup for reading information on the disk, and is located at a lower position that is a non-engagement position with the disk when the disk transport member is at the unloading position, The disk player provided with a disk drive mechanism supported by the player body so as to be able to move up and down so as to be moved to an upper position which is an engagement position with the disk with movement of the disk transport member to the carry-in position. An optical pickup feed motor is provided on the disk drive mechanism, and a worm is attached to the output shaft of this feed motor. Together, the optical pickup is formed a screw hole, the screw shaft is screwed rotatably and on the screw shaft has a structure in which the worm wheel which meshes with the worm is mounted.

With this, the worm is attached to the output shaft of the feed motor of the optical pickup, the screw shaft is rotatably screwed into the screw hole provided in the optical pickup, and the worm wheel attached to the screw shaft meshes with the worm. As a result, the driving force of the feed motor can be transmitted to the optical pickup by a simple gear transmission mechanism consisting of only the worm and worm wheel, which is advantageous in reducing the space and miniaturizing the disk drive mechanism. become.

[Brief description of the drawings]

1 to 8 show an embodiment of the present invention. FIG. 1 is a perspective view of a CD drive mechanism, FIG. 2 is an exploded perspective view of a compact disc player, and FIG. FIG. 4 is a side view of the compact disk player at the carry-out position, FIG. 5 is a sectional view taken along line XX of FIG. 3, FIG. 6 is a plan view of the compact disk player at the carry-in position, FIG. 7 is a side view at the carry-in position, and FIG. 8 is a cross-sectional view taken along the line YY of FIG. 1 is a chassis (player body), 2 is a CD (disk),
3 is a CD drive mechanism (disk drive mechanism), 3d is a screw shaft, 3h
Is a worm wheel, 3j is a feed motor, 3k is a worm, 5 is a disc tray (disc carrying member), 5e is a receiving section (disc placing section), 20 is a vibration isolating rubber, 23 is a turntable, and 24 is an optical pickup , 24a are screw holes.

Claims (3)

(57) [Claims] A player body and a disc mounting portion;
A disc transport member movably supported by a player body between a carry-out position and a carry-in position of the disc, a turntable for mounting and rotating the disc, and an optical pickup for reading information on the disc; When the disc carrying member is at the unloading position, the disc transporting member is located at the lower position, which is the non-engaging position with the disc, and is moved to the upper position, which is the engaging position with the disc, with the movement of the disc transporting member to the loading position. And a disk drive mechanism supported by the player body so as to be able to move up and down, in the vicinity of the turntable on the disk drive mechanism and near the center in the width direction of the optical disk drive mechanism.
A disc player comprising a feed motor for an optical pickup. 2. A game apparatus comprising a player main body and a disc mounting portion,
A disc transport member movably supported by a player body between a carry-out position and a carry-in position of the disc, a turntable for mounting and rotating the disc, and an optical pickup for reading information on the disc; When the disc carrying member is at the unloading position, the disc transporting member is located at the lower position, which is the non-engaging position with the disc, and is moved to the upper position, which is the engaging position with the disc, with the movement of the disc transporting member to the loading position. As described above, in a disk player provided with a disk drive mechanism supported so as to be able to move up and down by the player main body, and an anti-vibration rubber arranged between the player main body and the disk drive mechanism to prevent vibration of the disk drive mechanism, Near the turntable on the disk drive mechanism, in the width direction centered on the widthwise center position of the disk drive mechanism A disc player, wherein a feed motor of an optical pickup is arranged so that weights on both sides are substantially equal. 3. It has a player main body and a disc mounting portion,
A disc transport member movably supported by a player body between a carry-out position and a carry-in position of the disc, a turntable for mounting and rotating the disc, and an optical pickup for reading information on the disc; When the disc carrying member is at the unloading position, the disc transporting member is located at the lower position, which is a non-engagement position with the disc, and is moved to the upper position, which is the engaging position with the disc, as the disc transporting member moves to the loading position. And a disk drive mechanism supported by the player body so as to be able to move up and down. An optical pickup feed motor is provided on the disk drive mechanism, and an output shaft of the feed motor is provided on the disk drive mechanism. A worm is attached, a screw hole is formed in the optical pickup, a screw shaft is rotatably screwed, and ,
A disk player, wherein a worm wheel meshing with the worm is attached to the screw shaft.