JPH0679408B2 - Disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is configured such that a disc transport mechanism such as a disc tray is manually loaded into a player main body, and
The present invention relates to a disc player in which the disc transfer mechanism is unloaded from the player body by the urging force of a spring member.

[Conventional technology]

Conventionally, an optical reproducing device such as a compact disc player is generally positioned as a high-class product, and a tray type is generally used for loading and unloading the disc into the device.
It is done electrically and automatically. That is, a disc carrying member such as a disc tray having a disc mounting portion is driven by a motor via a speed reduction mechanism.

However, in that case, unless the meshing timing between the rack mounted on the disk transport member and the drive gear of the motor is accurately controlled, a defective meshing between the rack and the gear is likely to occur and a failure is likely to occur. Therefore, there is a problem that an opening / closing means for accurately controlling the meshing timing is required. Further, it is necessary to match the lock timing and the lock release timing of the lock means for locking the disc transfer member at the loading position with the mesh timing of the gear and the rack, and a combination of the lock means and the opening / closing means. There was a complication such as having to consider.

In order to solve the above-mentioned problems and to provide a device with a simpler structure and a cheaper structure in the popularization period of compact disc players and the like, the applicant of the present invention manually operates the disc conveying member in the player main body. Japanese Patent Application No. 63-252445 was previously filed for a disk player that is configured to be loaded into the disk player and that can be unloaded from the player body by the biasing force of a biasing member such as a spring.

[Problems to be Solved by the Invention]

However, in the above configuration, when the disk drive mechanism is carried out by the biasing force of the spring, the disk drive mechanism may be ejected vigorously with an impact, and therefore the operation tends to be unstable. , The disc may be damaged.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, a disc player according to the invention of claim 1 in the scope of claims of the present specification has a player main body and a disc mounting portion, and a disc main body is provided with a disc main body. A disc carrying member that is movably supported between a carry-out position and a carry-in position, an annular damper member that is rotatably supported by the player body, and one end thereof is connected to the player body, and the outer periphery of the damper member is The other end is connected via a via to the disk carrying member, and a spring member for urging the disk carrying member toward the unloading position side is provided.

The disc player according to the invention of claim 2 in the scope of claims is the disc player according to claim 1, wherein the outer periphery of the damper member is prevented from sliding with the spring member. The frictional contact portion is formed.

[Action]

According to the structure of claim 1, a part of the spring member is wound around the outer periphery of the damper member, and the damper member is rotated as the spring member expands and contracts. The member is buffered, so that the disc carrying member can be carried out gently. Further, since the spring member is wound around the damper member, the free length of the spring member is sufficiently long, and therefore, the spring member having a low spring constant can be used, whereby the disc carrying member can be carried into the player body. It is possible to reduce the manual operation force at the time of performing the operation and also reduce the variation of the operation force due to the expansion and contraction of the spring member, thereby improving the operability.

Next, in the disc player according to the second aspect of the present invention, since the friction contact portion for preventing slippage between the damper member and the spring member is provided on the outer periphery of the damper member, the damper member buffers the ejection of the disc conveying member. It will become more reliable.

〔Example〕

An embodiment common to claims 1 and 2 in the scope of claims of the present specification will be described below with reference to FIGS. 1 to 8.

As shown in FIG. 1, the compact disc player according to the present embodiment has a chassis 1 as a part of a player body.
And a compact disc (hereinafter referred to as a CD) which is supported on the chassis 1 so as to be vertically movable in the direction of arrow I or J.
2) CD drive mechanism 3 as a disk drive mechanism for rotationally driving 2 and reading information on CD 2, and CD drive mechanism 3 by moving in the direction of arrow E or F on chassis 1.
Place and store the lifting plate 4 that lifts and lowers the CD2,
Carry-out position (Fig. 2) and carry-in position (5th position) on chassis 1
(Fig.) And a disc tray 5 as a disc carrying member that moves in the direction of the arrow EF.

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

As shown in FIG. 2, on both side ends of the chassis 1,
A pair of side plates 6 and 7 facing each other are attached. An elevating plate 4 is arranged on the chassis 1 between the side plates 6 and 7. The right side plate 7 is a rack to be described later after the lifting plate 4 is arranged on the chassis 1.
The right end of the elevating plate 4 having 13 is attached to the chassis 1 so as to be positioned outside the side plate 7 via escape grooves 7a provided at the lower end of the side plate 7.

Guide pins 1a, 1a ... Are provided on the chassis 1, and these guide pins 1a, 1a ... Are fitted into guide holes 4a, 4a. As a result, the lifting plate 4 is moved to the guide holes 4a, 4a.
It is possible to move in the EF direction on the chassis 1 with a stroke according to the length of.

As shown in FIG. 4, the elevating plate 4 is provided with a plurality of standing wall portions 4b, 4b ... Which extend in the EF direction. In each standing wall portion 4b, a regulating recess 4c and a releasing recess 4d provided at a position closer to the E direction than the regulating recess 4c and at a lower position.
And an inclined recess 4e extending between them. A regulation pin 3a protruding laterally from the CD drive mechanism 3 is movably fitted in any of the recesses 4c to 4e of each standing wall portion 4b. The CD drive mechanism 3 is held in the upper position when the lifting plate 4 is located at the end in the E direction and each of the restriction pins 3a is positioned in the restriction recess 4c, and the lifting plate 4 is in the F direction. The CD drive mechanism 3 is held at the lower position when each of the regulation pins 3a is located at the end of the and the regulation pins 3a are located in the release recess 4d. The lifting plate 4 includes a spring hook 4f provided integrally and a spring hook 7b of the side plate 7.
Is urged in the E direction by a spring 8 stretched between the and.

As shown in FIG. 6, a horizontal fulcrum shaft 7c is provided outside the side plate 7. A spring 10 and an unloading operation lever 11 are fitted to the fulcrum shaft 7c, and a stopper 12 prevents the spring 10 from coming off. One end of the spring 10 is a spring hook 7d of the side plate 7.
And the other end is the spring hook 11a of the unloading operation lever 11.
, So that the unloading operation lever 11 is biased in the C direction. Use the finger to lower the operation lever 11 for unloading,
That is, the operation portion 11b for pressing in the D direction is provided. The side plate 7 is provided with an abutting portion 7j that abuts on the unloading operation lever 11 to limit the amount of rotation of the unloading operation lever 11 in the C direction.

An abutting portion 4g bent upward is provided at an end in the E direction of the lifting plate 4 located outside the side plate 7.
The contact portion 4g contacts the pressing portion 11c of the unloading operation lever 11 at the unloading position. When the unloading operation lever 11 is rotated in the D direction by the operation portion 11b, the contact portion 4g is pressed in the F direction, so that the lifting plate 4 resists the urging force of the spring 8 in the F direction. Is configured to move to.

A rack 13 is mounted on the right end of the lifting plate 4 located outside the side plate 7. A damper member 14 that rotatably supports a gear 14a that meshes with the rack 13 is attached to the side plate 7 above the rack 13 by screws 15 and 15 that are screwed into screw holes 7e and 7e. As a result, the movement of the lifting plate 4 in the EF direction is buffered by the damper member 14, so that the lifting plate 4 moves gently.

As shown in FIG. 5, the chassis 1 is provided with a fulcrum pin 1e. The fulcrum pin 1e has a first lock lever 16
Is rotatably inserted through the insertion hole 16a, and the spring 17 is inserted below the first lock lever 16 to the fulcrum pin 1e. One end of the spring 17 is a spring hook of the first lock lever 16.
The first lock lever 16 is biased in the arrow A direction by being locked by 16b and the other end being locked by the end 7f of the side plate 7.

The first lock lever 16 is provided with an engaging portion 16c projecting downward, and the engaging portion 16c engages with a lock portion 4h provided on the lifting plate 4 to move the lifting plate 4 to the spring 8. It is designed to be held at the moving end in the F direction against the biasing force (see FIG. 2). Further, the engaging portion 16 of the first lock lever 16 is provided near the lock portion 4h of the lifting plate 4.
An abutting portion 4i with which the engaging portion 16c abuts when the c is disengaged from the lock portion 4h is provided. The first lock lever 16 is provided with an abutting portion 16d, and the abutting portion 16d is capable of abutting on the end surface 5i located at the end of the disc tray 5 in the F direction.

As shown in FIG. 4, a plurality of mounting holes 3b, 3b, ... Are formed at both ends of the CD drive mechanism 3 in the EF direction. Each mounting hole
The sleeve 3b is fitted via a sleeve 19 into a holding pin 1b provided upright on the chassis 1 so as to be able to move up and down. A flange 19a having a larger diameter than the mounting hole 3b is provided at the lower end of the sleeve 19,
The flange 19a is located below the mounting hole 3b. A chucking spring 18 for pressing the CD drive mechanism 3 upward is inserted on the outer periphery of the holding pin 1b between the flange 19a and the chassis 1.

Above the flange 19a on the outer periphery of each sleeve 19,
Attach to the mounting hole 3b of the CD drive mechanism 3 at the mounting portion 20a
A cylindrical anti-vibration rubber 20 which is held on the upper side of the drive mechanism 3 is arranged. In the free state shown in FIG. 4, the vibration-proof rubber 20 has an axial length set such that the upper end 20b thereof is located slightly above the upper end of the sleeve 19. The washer 21 is fitted to the holding pin 1b above the anti-vibration rubber 20,
Further, an E ring 22 for preventing the washer 21 from coming off is fixed to the upper end of the holding pin 1b.

Regulation holes 3c, 3c (see FIG. 2) are provided at the end of the CD drive mechanism 3 in the F direction. The regulation holes 3c are fitted with the regulation pins 1c erected on the chassis 1 with some margin, and the regulation pins 1c and 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 an optical signal on the CD 2. Turntable
Reference numeral 23 denotes a lower support 23a that is attached to the output shaft 29a of the motor 29 and supports the lower portion of the CD 2, and the CD drive mechanism 3
Chucking hole 2 provided in the center of CD 2 as the
CD2 is attracted and held between a slanted surface portion 23b that is fitted to a and performs centering while absorbing the displacement of CD2, and an upper end portion of slanted surface portion 23b, and a magnet 27c of a clamp member 27 described later. And a suction plate 23c.

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 and 25a of the base frame 25 and screw holes 6a, 6a, 7g and 7g of the side plates 6 and 7, respectively. Screwed onto the screw 26
・ It is attached by 26…. A hole 25b is provided in the center of the base frame 25, and a clamp member 27 is rotatably supported in the hole 25b.

The clamp member 27 supports the CD 2 under the turntable 23.
3a, a pressing portion 27a, an inclined concave portion 27b into which the inclined surface portion 23b of the turntable 23 is fitted, and the clamp member.
Inserted in the center of 27, the suction plate 23 of the turntable 23
A magnet 27c that attracts c by magnetic force and holds CD2 between it and the turntable 23, and a fall prevention plate that prevents the clamp member 27 from falling by being supported on the upper surface of the base frame 25 around the hole 25b. 27d and.

As shown in FIG. 8, the CD drive mechanism 3 includes a screw shaft 3d for feeding the optical pickup 24 extending in the longitudinal direction, and 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 in the hole 24b of the optical pickup 24.

A worm wheel 3h is attached to the end of the screw shaft 3d in the E direction. On the side of the worm wheel 3h,
The CD drive mechanism 3 is integrally provided with a motor mounting portion 3i,
The motor 3j is attached to the motor attachment portion 3i with the internal screws 38, 38. A worm 3k is provided on the shaft of the motor 3j, and the worm 3k is meshed with the worm wheel 3h. As a result, the screw shaft 3d is rotated by the motor 3j, and the optical pickup 24 moves along the screw shaft 3d and the guide shaft 3g along with the rotation of the screw shaft 3d to E or F on the CD drive mechanism 3.
It is designed to move in the direction.

As described above, the motor 3j is placed in the immediate vicinity of the turntable 23.
In addition to mounting the power transmission from the motor 3j to the screw shaft 3d by using the minimum gear transmission mechanism of the worm 3k and the worm wheel 3h, it is possible to reduce the space. Moreover, since the weight of the motor 3j is evenly distributed in the direction of the arrow GH with respect to the center of the turntable 23, the mounting positions of the antivibration rubbers 20, 20 ... Can be made symmetrical with respect to the center of the turntable 23. Therefore, the CD drive mechanism 3 can be downsized. As a result, when the CD drive mechanism 3 is raised, the entire CD drive mechanism 3 is inserted into a clearance 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. 2, guide grooves 5a, 5a are formed at both end portions of the disc tray 5. The guide grooves 5a and 5a are guide pieces 6b and 7h provided on the inner upper portions of the side plates 6 and 7, respectively.
It is slidably fitted to. As a result, the disc tray 5 moves between the carry-out position and the carry-in position with respect to the chassis 1.
Alternatively, it is reciprocally movable in the F direction.

A horizontal fulcrum shaft 6c is provided inside the side plate 6, and a pulley 28 as an annular damper member is rotatably fitted to the fulcrum shaft 6c. Inside the pulley 28, a spring 30 and a washer 31 are further attached to the fulcrum shaft 6c to prevent the fulcrum shaft 6c from coming off by an E ring 32. The pulley 28 is given resistance to rotation by the biasing force of the spring 30.

One end of a unloading spring 33 as a spring member is locked to the spring hook 1d of the three chassis 1, and the unloading spring 33 is wound around the outer circumference of the pulley 28 to change direction, thereby forming a substantially U-shape. The other end is locked to a spring hooking pin 5b provided on the disc tray 5. The pulley 28 is formed with a plurality of grooves 28a, 28a ... As frictional contact portions that prevent slipping between the pulley 28 and the unloading spring 33 by engaging with the unloading spring 33.

The disc tray 5 is urged in the E direction by the unloading spring 33. As described above, since the unloading spring 33 is U-shaped by passing through the pulley 28, the unloading spring 33 having a long free length can be used to reduce the spring constant. . Therefore, it is possible to sufficiently reduce the operating force when the disc tray 5 is manually operated in the F direction against the urging force of the unloading spring 33, and to reduce the fluctuation of the operating force.

Further, the carry-out spring 33 is loaded by the spring 30 and wound around the pulley 28 provided with a function as a damper, so that the expansion and contraction of the carry-out spring 33 is buffered by the pulley 28. As a result, the movement of the disc tray 5 in the E direction based on the urging force of the unloading spring 33 also becomes gentle.
A screw 34 that can be engaged with the spring hooking pin 5b of the disc tray 5 is screwed into the screw hole 6d of the side plate 6 so as to project to the inside of the side plate 6, and the disc tray 5 is moved by a predetermined stroke E. When the disk tray 5 moves in the direction, the spring hooking pin 5b engages with the saw screw 34, and the amount of movement of the disc tray 5 in the E direction is limited.

The CD drive mechanism 3 at the loading position is mounted on the disc tray 5.
Escape hole 5c for avoiding interference between the disc tray 5 and the turntable 23, the optical pickup 24, etc. due to the rise of the
Is provided. A storage portion 5d for storing the CD2 is provided around the escape hole 5c, and the storage portion 5d is formed to be slightly larger than the outer shape of the CD2. Further, an inclined receiving portion 5e as a disk mounting portion for receiving the lower portion of the CD 2 is formed around the storage portion 5d.

Further, on both sides of the receiving portion 5e, notches 5f and 5f are provided at both end portions of the disc tray 5 for avoiding interference between the CD2 and the side wall portion of the disc tray 5 and for smooth mounting and removal of the CD2. Is provided. Further, the inner wall portions of the side plates 6 and 7 facing the cutout portions 5f and 5f at the loading position of the disc tray 5 have cutout portions 6e for avoiding interference between the CD2 and the side plates 6 and 7 during rotation of the CD2.・ 7i is formed.

A spring is provided above the first lock lever 16 at the fulcrum pin 1e.
35 is inserted. A second lock lever 36 is rotatably inserted above the spring 35 at a portion of an insertion hole 36a, and is prevented from coming off by an E ring 37. The spring 35 is stretched between the spring hook 16e of the first lock lever 16 and the spring hook 36b of the second lock lever 36, whereby the second lock lever 36 is biased in the direction of arrow B, while The first lock lever 16 is biased in the A direction. Second lock lever 36
When the contact portion 36c contacts the spring hook 16e of the first lock lever 16, the rotation amount in the B direction with respect to the first lock lever 16 is regulated.

The second lock lever 36 is provided with a lock portion 36d, and the lock portion 36d engages with a lock groove portion 5h formed on the right side wall portion 5g of the disc tray 5 when the disc tray 5 is at the loading position. Thus, the disc tray 5 is held at the loading position.

In the above structure, as shown in FIG. 2 to FIG. 4, when the disc tray 5 is being carried out, the spring hooking pin 5b of the disc tray 5 contacts the saw screw 34 as described above. Thus, the spring 33 is held at the carry-out position against the biasing force of the carry-out spring 33.

At this carry-out position, the lifting plate 4 is the first lock lever.
By engaging the engaging portion 16c of 16 with the lock portion 4h, movement of the spring 8 in the E direction is blocked by the biasing force of the spring 8, and the engaging portion 16c is located at the moving end portion in the F direction.

Therefore, in the CD drive mechanism 3, each restriction pin 3a has a release recess 4d.
By being located inside, it is held in the lower position.
Therefore, the turntable 23 on the CD drive mechanism 3 prevents the turntable 23 from contacting the disc tray 5 and the CD 2 moving in the F direction even when the disc tray 5 is loaded in the F direction together with the CD 2. ing.

At the lower position of the CD drive mechanism 3, no load is applied to the anti-vibration rubber 20, and the anti-vibration rubber 20 is simply placed on the CD drive mechanism 3 and held. Sleeve 1
It is slightly higher than the upper end of 9. At this lower position, only the chucking spring 18 is bent.

Furthermore, the clamp member 27 descends due to its own weight to prevent the fall prevention plate.
Although 27d is in contact with the upper surface of the base frame 25, even if the CD 2 is loaded by the disc tray 5 in this state,
The holding portion 27a of the clamp member 27 does not come into contact with the CD2 moving in the F direction.

The receiving portion 5e of the disc tray 5 for the CD 2 in the carrying-out state described above
The disc tray 5 on which the CD 2 is placed is manually pressed in the direction of the arrow F against the urging force of the unloading spring 33, and from the unloading position of FIGS. It is moved to the carry-in position shown in FIG. Then, the end surface 5i of the disc tray 5 comes into contact with the abutting portion 16d of the first lock lever 16 slightly on the front side after the movement stroke of the disc tray 5 is completed, and the first end is moved as the disc tray 5 moves in the F direction. The lock lever 16 rotates in the direction of arrow B against the biasing force of the spring 17.
Along with this, the second lock member 36d is in contact with the side wall 5g.
The lock lever 36 can also be rotated in the B direction by the urging force of the spring 35. Therefore, after that, when the disc tray 5 moves to the carry-in position, the second lock lever 36 rotates in the B direction, the lock portion 36d fits into the locking groove portion 5h of the disc tray 5, and the disc tray 5 moves. Locked in the loading position.

Further, with the rotation of the first lock lever 16 in the B direction, the engaging portion 16c disengages from the lock portion 4h of the elevating plate 4 and engages with the contact portion 4i. The rotation in the direction ends. Then, by disengaging the engaging portion 16c from the lock portion 4h, the lock at the moving end portion of the elevating plate 4 in the F direction by the first lock lever 16 is released,
The lifting plate 4 starts to move in the E direction by the biasing force of the spring 8.

As the lifting plate 4 moves in the E direction, the restriction pins 3a of the CD drive mechanism 3 cause the releasing recesses of the lifting plate 4 to be released.
It moves from 4d to the inclined recessed portion 4e, and further moves to the regulating recessed portion 4c side in the inclined recessed portion 4e. As a result, the CD drive mechanism 3 moves in the I direction within the clearance hole 5c of the disc tray 5 by the biasing force of the chucking spring 18. At that time, the lifting plate 4
Since the rack 13 provided in the gear meshes with the gear 14a of the damper member 14, the elevating plate 4 moves slowly in the E direction. Therefore, the CD drive mechanism 3 also moves gently in the I direction. Done.

With the movement of the CD drive mechanism 3 in the I direction, first, the slope portion 23b of the turntable 23 engages with the chucking hole 2a of the CD 2 and the CD drive mechanism 3 further rises.
23b fits into the inclined recess 27b of the clamp member 27 and the magnet 27
CD2 is chucked by the suction force between c and the suction plate 23c (see FIG. 7). After that, when the CD drive mechanism 3 further rises, the fall prevention plate 27d separates from the base frame 25 and the base frame 25
A gap is formed between and. In this state, CD drive mechanism 3
The control pin 3a fits in the control recess 4c and reaches the highest position.

When the CD drive mechanism 3 reaches the uppermost position, the sleeve 19 moves through the washer 21 and E as the chucking spring 18 expands.
The rubber cushion 20 comes into contact with the ring 22, and the upper end 20b of the rubber 20 is washer 2.
When it comes into contact with 1, it will bend slightly. In addition,
The amount of deformation of the anti-vibration rubber 20 is regulated by the sleeve 19 and is always constant, so the CD when the CD2 is chucked
The height of the drive mechanism 3 is always constant, and the CD 2 is held securely.

In the above chucking state, the CD drive mechanism 3, the CD 2 and the clamp member 27 are integrally floated independently of the chassis 1 and the like by the chucking spring 18 and the vibration isolating rubber 20. As a result, vibration resistance against vibration that may occur in the chassis 1 and the like is imparted. Where chassis 1
The relative vibration of the CD drive mechanism 3 with respect to
It occurs within the range of the gap between the restriction recess 4c and the restriction hole 3c and the restriction pin 1c. In the floating state described above, while the CD 2 is rotated by the turntable 23, the signal on the CD 2 is read by the optical pickup 24.

As described above, when the disc tray 5 is manually moved to the loading position, the elevating plate 4 is automatically moved in the E direction and the CD 2 is chucked by the CD drive mechanism 3 and the clamp member 27. As it is, the operation is simple.

Also, with the movement of the disc tray 5 in the F direction, the first
When the lock lever 16 starts rotating in the B direction, the second lock lever 36 can be rotated in the B direction by the spring 35, and the lock portion 36d of the second lock lever 36 is for locking the disc tray 5. Since the lock portion 36d is pressed against the right side wall portion of the disc tray 5 before reaching the groove portion 5h, as soon as the lock portion 36d reaches the locking groove portion 5h, the second lock lever 36 carries the disc tray 5 in. Locked in position.

Furthermore, as described above, the movement of the elevating plate 4 in the E direction is buffered by the damper member 14 and is gently performed. Therefore, the CD drive mechanism 3 is also gently raised, so that the CD
It is possible to prevent the CD 2 from being damaged by the turntable 23 at the time of chucking 2, and to reduce noise at the time of loading.

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

In order to carry out the disc tray 5 from the state shown in FIG. 5 to FIG. 7, the operation portion 11b of the carry-out operation lever 11 is pressed in the direction of the arrow D. Contact part 4g of the lifting plate 4 contacting the
Is pressed in the F direction by the pressing portion 11c as the unloading operation lever 11 rotates in the D direction, whereby the lifting plate 4 moves in the F direction against the biasing force of the spring 8.

Then, each regulation pin 3a of the CD drive mechanism 3 moves from the regulation recess 4c of the elevating plate 4 to the release recess 4d via the inclined recess 4e. Along with that, chucking spring 18
The CD drive mechanism 3 moves in the direction of arrow J against the urging force of. 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 generated by the magnetic force between the turntable 23 and the clamp member 27.
The chucking state of 2 is released. After that, when the CD drive mechanism 3 further moves in the J direction, the CD 2 is placed on the receiving portion 5e of the disc tray 5, the engagement between the CD 2 and the turntable 23 is released, and the CD 2 reaches the lowest position. .

While lowering the CD drive mechanism 3, the lifting plate 4 moves to F
When moved to the end in the direction, the first lock lever 16 is rotated in the A direction by the urging force of the spring 17, so that the engaging portion 16c engaged with the contact portion 4i of the elevating plate 4 is moved. It engages with the lock portion 4h, whereby the lifting plate 4 is locked at the end portion 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 16, the second lock lever 36 is also rotated with the rotation of the first lock lever 16 in the A direction. Rotate in the A direction. As a result, the lock portion 36d is disengaged from the locking groove portion 5h of the disc tray 5, and the lock at the loading position of the disc tray 5 is released. As a result, the disc tray 5 moves in the E direction together with CD2 by the urging force of the unloading spring 33, and reaches the unloading position. Here, the contraction of the carry-out spring 33 is gently performed by being buffered by the pulley 28 which is given a resistance to the rotation by the biasing force of the spring 30, as described above, and therefore the carry-out of the disc tray 5 is also carried out gently. Done. In that case, the groove provided on the pulley 28
Since the slip between the pulley 28 and the unloading spring 33 is prevented by 28a, 28a ..., The buffering by the pulley 28 is ensured.

As described above, when unloading the CD2, the CD drive mechanism 3 is lowered to C
Since it is carried out after being brought into non-contact with D2, the CD2 is not damaged by the carry-out, and the CD2 can be easily carried out only by operating the carry-out operation lever 11.

〔The invention's effect〕

As described above, the disc player according to the invention of claim 1 in the scope of claims of the present specification has the player main body and the disc mounting portion, and the ejecting position and the loading position of the disc by the player main body. A disk carrying member that is movably supported between the player's position and an annular damper member that is rotatably supported by the player body; one end is connected to the player body; An end is connected to the disc transport member, and a spring member for urging the disc transport member toward the unloading position is provided.

As a result, a part of the spring member is wound around the outer periphery of the damper member, and the damper member is rotated as the spring member expands and contracts, so that the expansion and contraction of the spring member is buffered by the damper member, and as a result, the disc The carrying member comes to be carried out gently. Further, since the spring member is wound around the damper member, it is possible to use a spring member having a sufficiently long free length and a low spring constant, which makes it possible to carry the disc carrying member into the player body. It is possible to improve the operability by reducing the manual operation force of (1) and reducing the variation of the operation force due to the expansion and contraction of the spring member.

Next, the disc player according to the invention of claim 2 in the section of the claims is the disc player according to claim 1, wherein the outer periphery of the damper member is prevented from slipping with the spring member. The frictional contact portion is formed.

As a result, since the frictional contact portion for preventing slippage between the damper member and the spring member is provided on the outer periphery of the damper member, it is possible to more reliably perform the cushioning by the damper member.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of a compact disc player, FIG. 2 is a plan view of the compact disc player in a carry-out position, and FIG. The same side view in the carry-out position, FIG. 4 is a sectional view taken along line XX in FIG. 2, and FIG. 5 is a plan view of the compact disc player in the carry-in position.
The figure shows the same side view in the carry-in position, and FIG. 7 shows Y- in FIG.
FIG. 8 is a sectional view taken along the line Y, and FIG. 8 is a perspective view of the CD drive mechanism. 1 is a chassis (player body), 2 is a CD (disk),
Reference numeral 5 is a disc tray (disc conveying member), 28 is a pulley (damper member), 28a is a groove (friction contact portion), and 33 is a unloading spring (spring member).

Claims (2)

[Claims] 1. A player main body and a disc mounting portion,
A disc carrying member that is movably supported by the player body between the unloading position and the loading position of the disc, an annular damper member that is rotatably supported by the player body, and one end of which is connected to the player body. A disc player, the other end of which is connected to the disc carrying member via the outer circumference of the damper member, and a spring member which urges the disc carrying member toward the unloading position. 2. The disc player according to claim 1, wherein a frictional contact portion is formed on the outer periphery of the damper member to prevent sliding between the damper member and the spring member.