JPH02235253A - Disk player - Google Patents

Abstract

PURPOSE:To compact a disk driving mechanism by arranging a motor for carrying an optical pickup in the vicinity of a turn table. CONSTITUTION:Since the carrying motor 3j is fixed directly in the vicinity of the turn table 23 and the transmission of motive power from the carrying motor 3j to a screw shaft 3d is executed by using the minimum gear transmission mechanism consisting of only a worm 3k and a worm wheel 3h, a space can be reduced. Since the fixing positions of oscillation preventing rubber can be set up on symmetrical positions about the center of the turn table 23 by equally distributing the weight of the motor 3j on both the sides of the width direction of the CD driving mechanism 3, the horizontal width of the mechanism 3 can be reduced and the mechanism 3 is compacted. Consequently, the disk driving mechanism is compacted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disc transport member that transports a disc between an ejection position and a transport position, and a disc transport member that ascends after the disc is transported by the disc transport member to remove the disc. The present invention relates to a disc player equipped with a disc drive mechanism that receives a disc from a transport member and reads information while rotating the disc.

[Conventional technology]

Conventionally, optical playback devices such as compact disc players have generally been positioned as high-end products, and the loading and unloading of discs into and out of the device is usually a tray type device.
This is done electrically and automatically. That is, a disk transport member such as a disk tray having a disk mounting section is driven by a motor via a speed reduction mechanism.

On the other hand, in recent years, with the aim of providing a disc player with a simpler structure and lower cost, a system in which the disc transport member is manually carried into the player has been proposed (Unexamined Japanese Patent Publication No. (See Publication No. 62-250549). In the automatic or manual disc player described above, after the disc is carried in by the disc transport member, a disc drive mechanism that has a turntable that rotates the disc and an optical pickup that reads information on the disc is installed. It moves upward to receive the disc from the disc transport member.

[Problem to be solved by the invention]

However, in the above-mentioned disc players, the disc drive mechanism is generally quite large;
There is also the problem of increasing the size of the disc player.

Furthermore, since the width of the disk drive mechanism is wide, even when the disk drive mechanism rises to receive the disk from the disk transport member, the turntable and optical pickup on the disk drive mechanism only fit into the holes in the disc 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 increases, which is one reason for the disc player to become even larger.

[Means to solve the problem]

In order to solve the above-mentioned problem, a disc player according to claim 1 in the claims column of this specification has a player main body and a disc mounting section, and the player main body can move the disc to a position where the disc is ejected. The disc transport member is supported movably between the transport position and the transport position, a turntable on which the disc is placed and rotated, and an optical pickup that reads information on the disc. At one time, it is located at a lower position where it does not engage with the disc, but when the disc transport member moves to the loading position, it is moved up and down by the player body so that it is moved to an upper position where it engages with the disc. A disc player equipped with a freely supported disc drive mechanism is characterized in that a motor for feeding an optical pickup is disposed near a turntable in the disc drive mechanism.

Further, the disc player according to claim 2 includes a player main body, a disc transport member having a disc mounting section and movably supported by the player main body between a disc unloading position and a disc loading position; It has a turntable on which a disc is placed and rotated, and an optical pickup that reads information on the disc, and when the disc transport member is at the unloading position, it is located at a lower position, which is a position where it does not engage with the disc, A disc drive mechanism is supported by the player body so as to be movable up and down so that it is moved to an upper position, which is an engagement position with the disc, as the disc transport member moves to the loading position, and the player body and the disc drive mechanism are connected to each other. In a disc player provided with a vibration isolating rubber disposed between the disc drive mechanism and for preventing vibration of the disc drive mechanism, the disc player is provided with a vibration isolator located near the turntable on the disc drive mechanism, centered at the center position in the width direction of the disc drive mechanism. It is characterized in that the optical pickup feeding motor is arranged so that the weights on both sides in the width direction are approximately equal.

Furthermore, a disc player according to claim 3 includes a player main body and a disc mounting section, . It has a disc transport member movably supported by the player main body between a disc unloading position and a disc loading position, a turntable on which the disc is placed and rotated, and an optical pickup that reads information on the disc, When the disc transport member is at the unloading position, it is located at a lower position where it does not engage with the disc, but as the disc transport member moves to the transport position, it is moved to an upper position where it engages with the disc. A disk player is provided with a disk drive mechanism that is supported by the player body so as to be able to move up and down.A motor for feeding an optical pickup is provided on the disk drive mechanism, and an output shaft of the feed motor is provided with a motor for feeding an optical pickup. The worm is attached, a screw hole is formed in the optical pickup, a screw shaft is rotatably screwed into the optical pickup, and a worm wheel that meshes with the worm is attached to the screw shaft. This is a characteristic feature. [Function] According to the structure of claim 1 above, since the optical pickup feeding motor is disposed near the turntable in the disk drive mechanism, the disk drive mechanism can be downsized.

Further, according to the configuration of claim 2, the optical pickup is disposed near the turntable on the disk drive mechanism so that the weights on both sides in the width direction centering on the center position in the width direction of the disk drive mechanism are approximately equal. Since the feeding motor is located in the center of the turntable, the mounting position of the anti-vibration rubber to prevent the vibration of the disk drive mechanism while the disk is supported by the disk drive mechanism has to be adjusted to prevent the movement of the disk transport member around the turntable. Since the positions can be symmetrical in the direction perpendicular to the direction, the width of the disk drive mechanism can be reduced and the size of the disk drive mechanism can be reduced.

Furthermore, according to the configuration of claim 3, a worm is attached to the output shaft of the feed motor of the optical pickup, and a screw shaft is rotatably screwed into the screw hole provided in the optical pickup. Since the worm wheel attached to the worm is meshed with the worm, the driving force of the feed motor can be transmitted to the optical pickup using a simple gear transmission mechanism consisting of just the worm and worm wheel. This is advantageous in reducing the size of the drive mechanism.

〔Example〕

Claims 1 to 1 in the scope of claims of this specification.
An embodiment common to the invention of item 3 will be described below based on FIGS. 1 to 8.

The compact disc player in this embodiment is of a type in which a compact disc is manually loaded into the device, and as shown in FIG. C
C as a disk drive mechanism that reads information on the DZ
D drive mechanism 3, an elevating plate 4 that raises and lowers the CD drive mechanism 3 by moving in the direction of arrow EF on the chassis 1, and a CD 2 to be placed and stored, and an unloading position (FIG. 3) on the chassis L. It is equipped with a disk tray 5 as a disk transport member that moves back and forth between the loading position (Fig. 6). The configuration of each part will be explained in detail below.

As shown in FIG. 3, at both ends of the chassis 1,
A pair of side plates 6 and 7 facing each other are attached. A lifting plate 4 is arranged on the chassis 1 between these side plates 6 and 7. The right side plate 7 is attached to the rack 1, which will be described later, after the lifting plate 4 is placed on the chassis 1.
The right end of the lifting plate 4 on which the lifting plate 3 is attached is the side plate 7
It is attached to the chassis 1 so as to protrude to the outside of the side plate 7 through relief grooves 7a provided at the lower ends of the side plate 7.

Guide pins 1a, 1a, . . . are provided on the chassis 1, and these guide pins la, 1a, . It fits into guide holes 4a, 4a... extending in the E F direction. Thereby, the elevating plate 4 is movable in the E or F direction on the chassis 1 with a stroke depending on the length of the guide holes 4a, 4a, . . . .

As shown in FIG. 5, the lifting plate 4 is marked with an arrow EF.
A plurality of standing wall portions 4b, 4b, . . . extending in the direction are formed. Each standing wall portion 4b is provided with a restriction recess 4C, a release recess 4d provided closer to the E direction and lower than the restriction recess 4C, and an inclined recess 4e extending between the two. It is being A regulation bottle 3a that projects horizontally from the side of the CD drive mechanism 3 is movably fitted into one of the recesses 4C to 4e of each standing wall 4b.

When the lifting plate 4 is located at the end in the E direction and each regulation bin 3a is located in the regulation recess 4C, C
The D drive mechanism 3 is in an upper position where it can engage with the CD 2 (Fig. 8)
When the lifting plate 4 is located at the end in the F direction and each regulating pin 3a is located in the release recess 4d, the CD drive mechanism 3 is at the lower position (the fifth position) where it does not engage with the CD 2.
(Figure). The lifting plate 4 lifts the CD drive mechanism 3 in the E direction by a spring 8 tensioned between four spring hooks integrally provided on the outside of the side plate 7 and a spring hook 7b of the side plate 7. It is biased toward the side that causes

As shown in FIG. 7, a fulcrum shaft 7C extending in the horizontal direction is provided on the outside of the side plate 7. A spring 10 and a carry-out operation lever 11 are fitted to the fulcrum shaft 7C, and are prevented from coming off by a stopper 12. One end of the spring 10 is locked to the spring hook 7d of the side plate 7, and the other end is locked to the spring hook lla of the carry-out operation lever 11, thereby biasing the carry-out operation lever 1l in the C direction. . The unloading operation lever l1 is provided with an operation part 1lb for pressing downward with a finger, that is, in the D direction.

In addition, on the side plate 7, there is a pressing part 11 of the operating lever 11 for carrying out.
A contact portion 7j is provided that limits the amount of sliding movement of the unloading operation lever 11 in the direction C by the urging force of the spring 10 by contacting the contact portion 7j. An upwardly bent abutting portion 4g is provided at the end of the elevating plate 4 located outside the side plate 7 in the E direction. 20 The abutting portion 4g is adapted to abut against the pressing portion 11c of the unloading operation lever 11 at the unloading position. Then, when the unloading operation lever l1 is rotated in the direction D using the operation part 1lb, the pressing part 11
The contact portion 4g is pressed in the direction F by the force c, the elevating plate 4 moves in the direction F against the biasing force of the spring 8, and the CD drive mechanism 3 descends.

A rack 13 is attached to the right end of the lifting plate 4 located outside the side plate 7. A damper member l4 rotatably supports a gear 14a meshing with the rack 13 on the side plate 7 above the rack l3.
It is attached by screws 15, 15 which are screwed into e. As a result, the movement of the lifting plate 4 in the EF direction is buffered by the damper member 14 and is performed gently.
Therefore, the CD drive mechanism 3 is moved up and down gently.

As shown in FIG. 6, a fulcrum pin 1 extending vertically is provided at the right corner of the end of the chassis 1 in the F direction.
e is provided. A first locking lever 16 is rotatably inserted through the fulcrum pin 1e through an insertion hole 16a, and a spring 17 is inserted into the fulcrum pin 1e below the first locking lever 16. The spring 17 has one end locked to the spring catch 16b of the first lock lever 16 and the other end locked to the end 7f in the side plate 70F direction, thereby urging the first lock lever 16 in the direction of arrow A. are doing.

The first lock lever 16 has an engaging portion 16 that protrudes downward.
c is provided, and this engaging portion 16c engages with a lock portion 4h formed on the lifting plate 4 to move the lifting plate 4 at the moving end in the F direction against the biasing force of the spring 8. (See Figure 3). Further, a contact portion 41 is provided near the lock portion 4h of the lifting plate 4, with which the engaging portion 16c of the first lock lever 16 comes into contact when the engaging portion 16c comes off the lock portion 4h. ing. The first lock lever 16 is provided with an abutting portion 16d, and the abutting portion 16d can abut against an end surface 51 located at the end of the disk tray 5 in the F direction. As shown in FIG. 5, the CD drive mechanism 3 is provided with a plurality of mounting holes 3b, 3b, . . . . Each mounting hole 3b is connected to a sleeve 19 on a holding pin 1b provided upright on the chassis 1.
It is fitted in such a way that it can be raised and lowered freely. A flange 19a having a larger diameter than the attachment hole 3b is provided at the lower end of the sleeve 19, and the flange 19a is located below the attachment hole 3b. A chucking spring 18 is inserted into the outer periphery of the holding bin 1b between the flange 19a and the chassis 1 to bias the CD drive mechanism 3 in one direction.

Above the flange 19a on the outer periphery of each sleeve 19, a cylindrical anti-vibration rubber 20 is arranged which is attached to the attachment hole 3b of the CD drive mechanism 3 at the attachment part 20a and is held on the upper side of the CD drive mechanism 3. ing. The axial length of the vibration isolating rubber 20 is set so that the vertically bent upper end 20b is located slightly above the upper end of the sleeve 19 in the free state shown in FIG. A washer 2l is fitted onto the holding pin 1b above the vibration isolating rubber 20, and an E-ring 22 for preventing the washer 21 from coming off is attached to the upper end of the holding pin 1b.

Regulation holes 3c (see FIG. 3) are provided at both corner portions of the CD drive mechanism 3 at its end in the F direction. Each regulation hole 3C is fitted with a regulation bin lc installed upright on the chassis 1 with some margin, so that the regulation bins 1c, 1c regulate the vibration of the CD drive mechanism 3 in the horizontal plane. There is.

The CD drive mechanism 3 is provided with a turntable 23 for supporting and rotating the CD 2, and an optical pickup 24 for reading optical signals on the CDZ. The turntable 23 is attached to the output shaft 29a of the motor 29. The turntable 23 has a lower support 23a that supports the lower part of the CD 2, and a chucking hole 2a that is formed in the center of the CD 2 as the CD drive mechanism 3 rises. Located at the slope portion 23b for centering and at the upper end of the slope portion 23b,
CD2 between the magnet 27c of the clamp member 27 to be described later.
It is equipped with a suction plate 23c that suctions and holds.

Above the turntable 23, a base frame 25 is mounted on the upper surface of the temporary 6 and 7 on both sides, passing through the mounting holes 25a, 25a... and screwed into the screw holes 6a, 6a, 7g, 7g of the side plates 6, 7. It is attached with screws 26, 26, etc. A hole 25b is provided in the center of the base frame 25, and the hole 25b
A clamp member 27 is rotatably supported within.

The clamp member 27 includes a holding part 27a that presses the CD 2 onto the lower support 23a of the turntable 23, and an inclined recess 27b into which the slope part 23b of the turntable 23 is fitted.
A magnet 27c is inserted into the center of the clamp member 27, attracts the attraction plate 23c of the turntable 23 with magnetic force, and holds the CD 2 between the turntable 23 and the base frame 25 around the hole 25b. Fall prevention plate 27 that prevents the clamp member 27 from falling by being supported on the upper surface of
d. 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 the tapped hole 24a of the optical pickup 24, and the guide shaft 3g extending parallel to the screw shaft 3d is screwed into the tapped hole 24a of the optical pickup 24.
It is movably fitted to 4b. A worm wheel 3h is attached to the end of the screw shaft 3d in the E direction. A motor mounting portion 31 is provided upright on the CD drive mechanism 3 on the side of the worm wheel 3h, and a feeding motor 3j of the optical pickup 24 is mounted to the motor mounting portion 31 with screws 38, 38. The feeding motor 3j is configured to move the disk tray 5 in the moving direction;
That is, it is placed near the turntable 23 in the EF direction. The installation position of the feed motor 3 is indicated by the arrow GH perpendicular to the moving direction of the disk tray 5.
In other words, the CD drive mechanism 3 is set at a position where the weights of the CD drive mechanism 3 on both sides in the width direction centering on the center position in the width direction of the disc tray 5 are approximately equal. In this embodiment, specifically, the feed motor 3j is attached to approximately the center position of the CD drive mechanism 3 in the width direction. A worm 3k is provided on the 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 as the screw shaft 3d rotates, the optical pickup 24 moves along the screw shaft 3d and the guide shaft 3g.
It moves in the E or F direction on the D drive mechanism 3.

As described above, the feed motor 3j is installed in the immediate vicinity of the turntable 23, and the power is transmitted from the feed motor 3j to the screw shaft 3d using a minimum gear transmission mechanism consisting of only the worm 3k and the worm wheel 3h. Since this is done by using the CD drive mechanism 3, the space can be reduced and the weight of the feed motor 3j can be reduced by using the CD drive mechanism 3.
By equally distributing the weight on both sides in the width direction of the CD drive mechanism 3, the weight on both sides in the width direction of the CD drive mechanism 3 is made almost equal, and the mounting positions of the vibration isolating rubbers 20, 20, etc. are adjusted to the turntable 23.
Since the CD drive mechanism 3 can be positioned symmetrically with respect to the center of the CD drive mechanism 3, the width of the CD drive mechanism 3 can be reduced and the size of the CD drive mechanism 3 can be reduced. As a result, when the CD drive mechanism 3 is raised, the CD drive mechanism 3
The disc player can also be made thinner by having the entire disc tray 5 inserted into an escape hole 5c which will be described later.

As shown in FIG. 3, guide grooves 5a extending in the EF direction are formed at both ends of the disc tray 5. As shown in FIG. The guide grooves 5a, 5a are slidably fitted into guide pieces 6b, 7h provided on the inner upper portions of the side plates 6, 7, respectively. Thereby, the disk tray 5 is supported by the chassis 1 so as to be able to reciprocate in the E or F direction between the unloading position and the loading position. A fulcrum shaft 6c extending horizontally 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 further includes:
A spring 30 and a washer 31 are attached, and an E-ring 32 prevents them from coming off. The pulley 28 is provided with resistance to rotation by the biasing force of the spring 30.

One end of the carrying-out spring 33 is locked to the spring hook 1d of the chassis 1, and the carrying-out spring 33 forms a substantially U-shape by wrapping around the outer periphery of the pulley 28 and changing its direction.
The other end is locked to a spring hanging pin 5b provided on the disc tray 5. The disk tray 5 is biased in the E direction by an upward spring 33. In addition, Bouli 2
8 is engaged with the spring 33 for carrying out, so that the boot 2
A plurality of grooves 28a prevent slipping between the spring 8 and the unloading spring 33.
・28a... is formed.

As mentioned above, the spring 33 for carrying out is formed into a U-shape by passing through the pulley 28, so the spring 33 for carrying out
3 can use a long free length to lower the spring constant. Therefore, the operating force when manually moving the disc tray 5 in the F direction against the biasing force of the unloading spring 33 can be made sufficiently small, and the fluctuations in the operating force can also be made small. .

Further, since the unloading spring 33 is wound around the pulley 28 which is provided with resistance to rotation by the spring 30,
The expansion and contraction of the unloading spring 33 is damped by the pulley 28 which functions as a damper. As a result, the unloading spring 33
The movement of the disk tray 5 in the E direction based on the biasing force is also gradual.

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

The disc tray 5 is provided with an escape hole 5C to avoid interference between the CD drive mechanism 3 and the disc tray 5 as the CD drive mechanism 3 rises at the loading position. Around the escape hole 5C, there is a storage section 5 for storing the CD2.
d is provided. The storage portion 5d is formed to be slightly larger than the outer shape of the CD 2. Further, an inclined receiving part 5e is formed around the storage part 5d as a disc mounting part for receiving the lower part of the CD 2.

On both sides of the receiving part 5e, notches 5r and 5f are provided at both ends of the disc tray 5 to avoid interference between the CD 2 and the side walls of the disc tray 5 and to facilitate loading and unloading of the CD 2. It is being In addition, the inner walls of the side plates 6 and 7 facing the notches 5f and 5r at the loading position of the disc tray 5 are provided with notches 6e to avoid interference between the CD 2 and the side plates 6 and 7 during rotation of the CD 2.・71
is formed.

A spring 35 is inserted above the first lock lever l6 on the fulcrum pin 1e. A second locking lever 36 is rotatably inserted above the spring 35 at an insertion hole 36a, and is prevented from coming off by an E-ring 37. The spring 35 is tensioned between the spring hook 16e of the first lock lever 16 and the spring hook 36b of the second lock lever 36, thereby biasing the second lock lever 36 in the direction of arrow B. The first lock lever l6 is biased in the direction of arrow A. When the contact portion 36c of the second lever 36 comes into contact with the spring hook 16e of the first lever 16, the amount of rotation in the direction B with respect to the first lever l6 is restricted.

The second lock lever 36 is provided with a hook-shaped lock portion 36d, and the lock portion 36d engages with a locking groove 5h formed on the right side wall of the disk tray 5 when the disk tray 5 is in the loading position. By doing so, the unloading spring 3
The disk tray 5 is held at the loading position against the biasing force of 3. In the above configuration, in the state shown in FIGS. 3 to 5, the disc tray 5 is in the unloading position, and the spring pin 5b is in contact with the screw 34 as described above. At this unloading position, the engaging portion 1-6C of the first locking lever 16 engages with the locking portion 4h, so that the lifting plate 4 is prevented from moving in the E direction by the biasing force of the spring 8. It is located at the end of movement in the F direction.

Therefore, the CD drive mechanism 3 is held in the lower position by each regulating pin 3a being located within the release recess 4d. Therefore, the turntable 2 on the CD drive mechanism 3
3 is configured such that even if the disc tray 5 moves in the F direction and the CD 2 is carried in, the turntable 23 does not come into contact with the disc tray 5 and the CD 2 that are moving in the F direction.

Further, at the lower position of the CD drive mechanism 3, only the chucking spring 18 is in a bent state, and no load is applied to the vibration isolating rubber 20, which is simply placed on the CD drive mechanism 3. It is maintained in the same condition. At this time, the upper end 20b of the vibration isolating rubber 20 is located at a slightly higher position than the upper end of the sleeve 19.

Further, the clamp member 27 is lowered by its own weight, and the fall prevention plate 27d is in contact with the upper surface of the base frame 25. Even if the CD 2 is carried in by the disc tray 5 in this state, the clamp member 27 The holding portion 27a is configured not to contact the CD 2 that is moving in the F direction.

In the above-described unloading state, the CD 2 is placed on the receiving portion 5e of the disc tray 5, and the disc tray 5 with the CD 2 placed thereon is manually pressed in the direction of the arrow F against the biasing force of the unloading spring 33. It is moved from the carry-out position shown in FIGS. 3 to 5 to the carry-in position shown in FIGS. 6 to 8. Then, disk tray 5
Slightly before the end of the movement stroke, the end surface 51 of the disc tray 5 touches the contact portion 16d of the first lock lever 16.
Thereafter, as the disc tray 5 moves in the F direction, the first locking lever 16 rotates in the direction of arrow B against the biasing force of the spring 17. Accordingly, the second lock lever 36 can be rotated in the direction B by the biasing force of the spring 35, and when the disc tray 5 has moved to the loading position, the second lock lever 36 is rotated in the direction B and locked. The portion 36d fits into the locking groove 5h of the disc tray 5, and the disc tray 5 is locked at the loading position.

Additionally, as the first lock lever 16 rotates in the B direction,
The engaging portion 16c disengages from the locking portion 4h of the lifting plate 4 and comes into contact with the abutting portion 41, and at this point the rotation of the first locking lever 16 in the direction B is completed. And the engaging part 16
c is removed from the lock portion 4h, the lock at the moving end of the lifting plate 4 in the F direction by the first lock lever 16 is released, so that the lifting plate 4 is moved by the spring 8.
It begins to move in the E direction due to the urging force of .

As the elevating plate 4 moves in the E direction, each regulation bin 3a of the CD drive mechanism 3 moves from the releasing recess 4d of the elevating plate 4 to the inclined recess 4e, and further moves to the regulating recess within the inclined recess 4e. Move to 4c side. As a result, the CD drive mechanism 3 moves in one direction within the clearance hole 5C of the disc tray 5 due to the biasing force of the chucking spring l8. At that time, the rack 13 provided on the lifting plate 4
Since it meshes with the gear 14a of No. 4, the lifting plate 4
The movement of the CD drive mechanism 3 in the direction E is performed slowly, and therefore the movement of the CD drive mechanism 3 in the direction ■ is also performed slowly.

As the CD drive mechanism 3 moves in one direction, the slope portion 23b of the turntable 23 first engages with the chucking hole 2a of the CD 2. When the CD drive mechanism 3 further rises, the slope portion 23b engages with the inclined recess 27b of the clamp member 27, and the CD 2 is chaffed by the attraction force between the magnet 27c and the attraction plate 23c (Fig. 8). reference). After that, when the CD drive mechanism 3 further rises, the fall prevention plate 27d separates from the base frame 25, and a gap is formed between the fall prevention plate 27d and the base frame 25. In this state, the regulation pin 3a of the CD drive mechanism 3 fits into the regulation 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 as the chucking spring 18 expands, and the vibration isolating rubber 20
When 0b comes into contact with washer 2l, it will be slightly bent. Note that the deformation of the vibration isolating rubber 20 is as follows:
The process ends when the upper end of the is in contact with the washer 21. Therefore, the amount of deformation of the vibration isolating rubber 20 is regulated by the sleeve 19 and is always constant, so the height of the CD drive mechanism 3 in the state where the CD 2 is chucked is also always constant, and the CD
2 is reliably maintained.

In the above-mentioned chucking state, the CD drive mechanism 3, CD 2, and clamp member 27 are integrally floated independently from the chassis 1 etc. by the chucking spring 18 and the vibration isolating rubber 20. This provides vibration resistance against vibrations that may occur in the chassis 1 and the like. here,
Relative vibration of the CD drive mechanism 3 with respect to the chassis 1 etc. is caused by the gap between the regulation pin 3a and the regulation recess 4c and the regulation hole 3.
This occurs within the range of the gap between C and the regulating pin 10. In the above-described floating state, while the CD 2 is being rotated by the turntable 23, the optical pickup 24 reads the signals on the CD 2. 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 for loading, the CD drive mechanism 3, the CD 2, and the clamp member 27 float independently from the chassis 1 etc. , it has vibration resistance. Also, when the disc tray 5 is manually moved to the loading position, the lifting plate 4 automatically moves in the E direction to load the CD.
Since the drive mechanism 3 and the clamp member 27 are configured to play the CD 2, the operation is easy.

Furthermore, when the first lock lever 16 begins to rotate in the B direction as the disc tray 5 moves in the F direction, the second lock lever 36 is enabled to rotate in the B direction by the spring 35. Since the lock part 36d of the second lock lever 36 is pressed against the right side wall part 5g of the disc tray 5 before it reaches the locking groove part 5h of the disc tray 5, the lock part 36d is locked. As soon as the disk tray 5 reaches the storage groove 5h, the second lock lever 36 locks the disk tray 5 at the loading position.

Further, as described above, the movement of the lifting plate 4 in the E direction is carried out gently as it is buffered by the damper member l4, and therefore, the rise of the CD drive mechanism 3 is also carried out slowly, so that the C
CD by turntable 23 when chucking D2
2, and the noise at the time of loading can be reduced.

Next, the operation when moving the disc tray 5 from the carry-in position to the carry-out position will be explained.

To unload the disc tray 5 from the state shown in FIGS. 6 to 8, move the operating portion 1lb of the unloading operation lever 11 to
When the pressing operation is performed in the direction D., the abutting portion 4g of the lifting plate 4 that is in contact with the pressing portion lie of the carrying-out operating lever 11 at the carry-in position moves to the D side of the carrying-out operating lever 11. As it rotates in the F direction, the pressing portion 11c presses it in the F direction, and as a result, the elevating plate 4 resists the biasing force of the spring 8 and moves in the F direction.
move in the direction.

Then, each regulating pin 3a of the CD drive mechanism 3 moves from the regulating recess 4c of the lifting plate 4 to the releasing recess 4d via the inclined recess 4e. Along with this, the CD drive mechanism 3 moves as shown by the arrow J against the urging force of the chucking spring l8.
move in the direction. As the CD drive mechanism 3 moves in the J direction, the fall prevention plate 27d of the clamp member 27 moves against the base frame 25.
The turntable 23 and the clamp member 2
The chucking state of the CD 2 due to the magnetic force between the CD 2 and the CD 7 is released. Thereafter, when the CD drive mechanism 3 further moves in the J direction, the CD 2 is placed on the receiving part 5e of the disc tray 5, the engagement between the CD 2 and the turntable 23 is released, and the lowest position is reached. .

As the CD drive mechanism 3 descends, the lifting plate 4 moves to F.
When it moves to the end of the direction, the biasing force of the spring 17 causes the first
When the lock lever 16 rotates in eight directions, the engaging portion 16c that has been engaged with the contact portion 41 of the lifting plate 4
engages with the lock portion 4h, whereby the lifting plate 4 is locked at the moving end in the F direction.

Further, since the contact portion 36c of the second lock lever 36 is in contact with the spring hook 16e of the first lock lever l6, the second lock lever 36
As the lock lever 16 rotates in the A direction, the second lock lever 36 also rotates in eight directions. As a result, the locking portion 36d separates from the locking groove 5h of the disc tray 5, and the disc tray 5 is unlocked at the loading position. As a result, the disc tray 5 moves in the E direction together with the CD 2 due to the biasing force of the unloading spring 33, and reaches the unloading position. Here, as mentioned above, the contraction of the unloading spring 33 is carried out gently as it is buffered by the pulley 28 whose rotational speed is reduced by the biasing force of the spring 30, and therefore the unloading of the disc tray 5 is also performed slowly. It will be held on. In that case,
Since the grooves 28a provided in the pulley 1J28 prevent slippage between the pulley 28 and the spring 33 for carrying out, the buffer provided by the pulley 1J28 is further ensured.
As described above, the CD 2 is unloaded 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, so the CD 2 is not damaged during unloading. , the CD 2 can be easily ejected by simply operating the ejecting operation lever 11. In the above embodiment, a disc player is described in which the disc tray 5 is loaded and unloaded manually and by the biasing force of a spring, but the present invention is a type in which the disc tray 5 is loaded and unloaded automatically using a motor. It can also be applied to other disc players.

〔Effect of the invention〕

As described above, the disc player according to claim 1 in the claims column of this specification has a player main body and a disc mounting section, and the player main body allows the disc to be taken out and put in the position. It has a disc transport member movably supported between the disc transport member, a turntable on which the disc is placed and rotated, and an optical pickup that reads information on the disc.When the disc transport member is at the unloading position, the disc transport member is located at a lower position, which is a non-engaging position, and is movably supported by the player body so that it can be moved up and down, so that it is moved to an upper position, which is an engaging position with the disc, as the disc transport member moves to the loading position. In a disc player equipped with a disc drive mechanism, a motor for feeding an optical pickup is disposed near a turntable in the disc drive mechanism.

As a result, the turntable in the disk drive mechanism and the feed motor for the optical pickup are placed close to each other.
The disk drive mechanism can be downsized.

Further, the disc player according to claim 2 includes a player main body, a disc transport member having a disc mounting section and movably supported by the player main body between a disc unloading position and a disc loading position; It has a turntable on which a disc is placed and rotated, and an optical pickup that reads information on the disc, and when the disc transport member is at the unloading position, it is located at a lower position, which is a position where it does not engage with the disc, A disc drive mechanism is supported by the player body so as to be movable up and down so that it is moved to an upper position, which is an engagement position with the disc, as the disc transport member moves to the loading position, and the player body and the disc drive mechanism are connected to each other. In a disc player provided with a vibration isolating rubber disposed between the disc drive mechanism and for preventing vibration of the disc drive mechanism, the disc player is provided with a vibration isolator located near the turntable on the disc drive mechanism, centered at the center position in the width direction of the disc drive mechanism. The optical pickup's feeding motor is arranged so that the weights on both sides in the width direction are approximately equal.

As a result, the installation position of the optical pickup feeding motor is set near the turntable on the disk drive mechanism so that the weight on both sides in the width direction centering on the center position of the disk drive mechanism is approximately equal. Therefore, the mounting position of the anti-vibration rubber for preventing vibration of the disk drive mechanism when the disk is supported by the disk drive mechanism can be set at a symmetrical position in the width direction of the disk drive mechanism. It is possible to reduce the size by reducing the width of the .

Further, the disc player according to claim 3 includes a player main body, a disc transport member having a disc mounting section and movably supported by the player main body between a disc unloading position and a disc loading position; It has a turntable on which a disc is placed and rotated, and an optical pickup that reads information on the disc, and when the disc transport member is at the unloading position, it is located at a lower position, which is a position where it does not engage with the disc, A disc player is provided with a disc drive mechanism supported by the player body so as to be movable up and down so as to be moved to an upper position, which is an engagement position with the disc, as the disc transport member moves to the loading position,
A feeding motor for the optical pickup is provided on the disk drive mechanism, a worm is attached to the output shaft of the feeding motor, and a screw hole is formed in the optical pickup so that the screw shaft can be screwed into the shaft for rotation. combined, and
A worm wheel that meshes with the worm is attached to the screw shaft.

As a result, 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 is attached to the worm. Because they are meshed, the driving force of the feed motor can be transmitted to the optical pickup using a simple gear transmission mechanism consisting of just the worm and worm wheel, which is useful for reducing space and downsizing the disk drive mechanism. It will be advantageous.

[Brief explanation of drawings]

1 to 8 show an embodiment of the present invention, in which 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. 3 is an exploded perspective view of a compact disc player. 4 is a side view of the compact disc player at the unloading position; FIG. 5 is a sectional view taken along the line x-X in FIG. 3; FIG. 6 is a plan view of the compact disc player at the loading position; FIG. 7 is a side view of the same at the carry-in position, and FIG. 8 is a sectional view taken along the Y--Y line in FIG. 6. 1 is the chassis (player body), 2 is the CD (disc)
, 3 is a CD drive mechanism (disk drive mechanism), 3d is a screw shaft, 3h is a worm wheel, 3j is a feeding motor, 3
k is a worm, 5 is a disc tray (disc transport member), 5e is a receiving part (disc mounting part), 20 is a vibration isolating rubber,
23 is a turntable, 24 is an optical pickup, 24a
is a screw hole.

Claims (1)

[Scope of Claims] 1. A player body, a disc transport member having a disc mounting portion and supported movably between a disc ejection position and a disc loading position by the player main body, and a disc transport member on which the disc is placed. It has a turntable that rotates and an optical pickup that reads information on the disc. When the disc transport member is at the unloading position, it is located at a lower position where it does not engage with the disc. A disc player is provided with a disc drive mechanism supported by the player body so as to be movable up and down so as to be moved to an upper position, which is an engagement position with the disc, as the player moves to the upper position, which is an engagement position with the disc. A disc player characterized in that a motor for feeding an optical pickup is arranged near a turntable. 2. A player main body, a disc transport member having a disc mounting section and movably supported by the player main body between a disc unloading position and a disc loading position, and a turntable on which the disc is mounted and rotated; It has an optical pickup that reads information on the disc, and when the disc transport member is at the unloading position, it is located at a lower position where it does not engage with the disc, but when the disc transport member moves to the transport position, A disk drive mechanism is supported by the player body so as to be able to rise and fall freely so that it can be moved to an upper position where it engages with the disk, and a disk drive mechanism is disposed between the player body and the disk drive mechanism to reduce vibrations of the disk drive mechanism. In a disc player equipped with anti-vibration rubber, a disc drive mechanism is provided near the turntable on the disc drive mechanism so that the weights on both sides in the width direction centering on the center position in the width direction of the disc drive mechanism are approximately equal. A disc player characterized in that a motor for feeding an optical pickup is arranged. 3. A player main body, a disc transport member having a disc loading section and movably supported by the player main body between a disc ejection position and a disc loading position, a turntable on which the disc is mounted and rotated; It has an optical pickup that reads information on the disc, and when the disc transport member is at the unloading position, it is located at a lower position where it does not engage with the disc, but when the disc transport member moves to the transport position, A disk player is provided with a disk drive mechanism that is movably supported by the player body so as to be moved up and down to an upper position that is an engagement position with the disk. A worm is attached to the output shaft of the feed motor, a screw hole is formed in the optical pickup, and the screw shaft is rotatably screwed into the optical pickup.
A disc player characterized in that a worm wheel that meshes with the worm is attached to the screw shaft.