JP2001357582A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the generation of noise caused by the backlash of an elevating means 676 for elevating/lowering a clamping means 675 for loading a disk 509 on a rotary-driven table 508. SOLUTION: The tapered end 793 of a moving member 792 provided in the elevating mean 676 is held by the first and second holding guide slopes 814, and 815; 816 of a synthetic resin holding member 801 fixed on a housing 805, and thus backlash displacements in an elevating direction and in left/right direction are prevented. The tip part 797 of the tapered end 793 of the moving member 792 is tightly engaged with the tip holding part 817 of the holding member 801, and thus the prevention of backlash is further ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to at least one of reproduction and recording of a disc such as an optical disc or a magneto-optical disc, which is a disc-shaped recording medium such as a digital video disc (abbreviated DVD) and a compact disc (abbreviated CD). The present invention relates to a disk device that performs one operation.

[0002]

2. Description of the Related Art A disk drive mounted on an automobile or the like generates wobble of parts during running of the automobile due to manufacturing errors of the parts and the like, and generates noise due to collision between the parts. In particular, the elevating means for elevating and lowering the clamp means for mounting the inserted disk on the table is provided with a cam mechanism and the like, and is likely to generate noise due to rattling.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent generation of noise due to rattling caused by manufacturing errors of parts in a lifting means for lifting and lowering a clamp means for mounting a disk on a table. It is an object of the present invention to provide a disk device which is capable of being used.

[0004]

Further, according to the present invention, (a) the clamp means 675 for mounting a disk on the rotatably driven table 508 is moved up and down by the elevating means 676 in the vertical direction of the table, and (b) ) This elevating means 676
Moves perpendicularly to the vertical direction, and an end 793 of the vertical direction 796 has a tapered moving member 792 and a cam mechanism for driving the clamp means in the vertical direction in conjunction with the moving direction of the moving member. And (c) a holding member 801 provided at a fixed position, the holding member 801 receiving and holding the tapered end portion 793 of the moving member at the end position in the moving direction of the moving member. Device.

According to the present invention, a DVD or CD and other types of discs are inserted and conveyed by, for example, disc conveying means 673 and brought directly above the table, and the clamp means is lowered by the elevating means 676 so that the disc is moved. It is mounted and mounted on the table. When the table is driven to rotate, the disk is reproduced or recorded by, for example, the optical pickup 511 or the like. The elevating means 676 has a moving member 792 that moves vertically in the elevating direction, for example, horizontally.
In conjunction with the movement of the moving member 792, the clamp mechanism is driven to move up and down by the operation of the cam mechanism 907.

An end 793 of the moving member in the moving direction is tapered, and the base 519 or the housing 805 is formed.
The moving member 792 is received and held at the extreme end position in the moving direction 796 of the moving member 792 by a holding member 801 provided at a fixed position such as the above. Thus, for example, if the disk is table 508
The moving member 792 is held by the holding member 801 in a rest state in which the moving member 792 is not mounted thereon, and rattling is prevented. This prevents the generation of noise. This is particularly important when the disk device is mounted on a vehicle such as an automobile.

In the present invention, the moving member 792 has an elongated plate shape, the end 793 has tapered sides 794 and 795 along the moving direction, and the holding member 801 is attached to the end 793. Correspondingly tapered in the direction of movement,
A first holding guide inclined surface 814, 815 for guiding the both side portions 794, 795 of the end portion, and a second holding guide surface slidably guided to the end portion in a direction perpendicular to the vertical direction and the moving direction. And a guide inclined surface 816.

According to the present invention, the moving member 792 is formed in an elongated plate shape, and upper and lower side portions 794 and 795 of FIG. 15 in an embodiment of the present invention to be described later are tapered. The first holding guide inclined surfaces 814 and 815 for guiding the end portion 793 of the moving member 792 are formed, thereby preventing the moving member 792 from rattling in the vertical direction in FIG. The holding member 801 is formed with a second holding guide inclined surface 816. Therefore, rattling of the moving member 792 in the left-right direction perpendicular to the up-down direction and the front-back left-right direction is prevented. Thus, generation of noise from the moving member can be reliably prevented.

Further, in the present invention, the tip 797 of the tapered end portion 793 of the moving member 792 is formed such that both tip side portions 798, 799 are parallel to the moving direction, and the holding member 801 is provided with first and second tip holding portions that the tip portion 797 fits tightly and holds.
The holding guide inclined surfaces 814, 815, and 816 are formed continuously.

According to the present invention, the tip 797 of the tapered end 793 of the moving member 792 is formed parallel to the moving direction 796 as shown in FIG.
97 is held by the tip end holding portion 817 of the holding member 801, the holding of the moving member 796 is ensured, and the generation of noise is more reliably prevented.

The present invention also provides that the moving member is provided on a base 519 to which a table is mounted, the base is mounted on a housing 805 via a damper 806, and the holding member is fixed on the housing 805. Features.

According to the present invention, a table, and therefore a rotary drive source 506 for rotating the table, are provided on a base 519 of the apparatus main body 505 of the disk drive. The base 519 is, for example, an automobile or the like. Is mounted on a housing 805 fixed to the vehicle via a damper 806 for elastically damping vibration, and a moving member provided on the base is held by a holding member 801 fixed to the housing. You. Thus, it is possible to prevent the moving member and the base body from vibrating and rattling with respect to the housing 805.

Further, the present invention is characterized in that the holding member 801 is made of synthetic resin and is fixed to the housing by utilizing the elasticity of the material.

According to the present invention, the housing 805 includes
The synthetic resin holding member is fixed to the housing by utilizing the elasticity of the synthetic resin material. Thereby, the assembling operation is ensured, and the holding member is made of a synthetic resin, so that the metal moving member 792 can be guided and held with low frictional force. The synthetic resin may be, for example, polycarbonate.

[0015]

FIG. 1 is a simplified plan view showing the entire structure of an embodiment of the present invention. In the disc reproducing device 501, the arrow 5
03, a DVD 504, which is a DVD,
It is inserted into the device main body 505. This disk 504
Is mounted on a table 508 which is driven to rotate about a rotation axis 507 substantially perpendicular to the plane of FIG. 1 by a rotation drive source 506 in the apparatus main body 505. Device body 505
The discs within, for example, the discs mounted on the table 508 are indicated by reference numeral 509. This disk 50
9 is an objective lens 5 provided in the optical pickup 511
The content of the recording layer of the disk 509 is read out and reproduced using the laser light from the disk 12. Optical pickup 51
1 can be moved back and forth in the movement direction 516 by the optical pickup moving means 522.

The optical axis of the objective lens 512 is on a straight line passing through the rotation axis 507 of the table 508 in the virtual plane, and the optical axis of the objective lens 512 is perpendicular to the plane of FIG. Further, in this disc reproducing apparatus 501, a disc 510, which is a CD having a smaller outer diameter than the discs 504 and 509, can be inserted and played in the same manner as the disc 504. Disks 504 and 509 are 1
It may be a DVD or CD having an outer diameter of 2 cmφ. The disk 510 may be a CD having an outer diameter of 8 cmφ.

FIG. 2 is a front view showing the upper limit position of the disk 509 when the disk 509 is viewed from the insertion / ejection port 502 of the disk reproducing apparatus 501 immediately above the table 508 with an interval, and FIG. Table 5
It is a front view showing the state where it is attached to 08 and it is in the lower limit position for reproduction. The disc 509 to be reproduced inserted from the insertion / ejection port 502 includes a transport roller 671 having a horizontal rotation axis perpendicular to the insertion direction 503, and a sliding piece 672 disposed above the transport roller 671. By the operation of the disk transport means 673, the disk 509 is inserted and transported just above the table 508 as shown in FIG. The disc 509 after reproduction is inserted into the insertion / ejection port 50.
2, the disk 509 is also at the upper limit position spaced directly above the table 508, similarly to FIG. The disk 509 is sandwiched between the sliding piece 672 on the transport roller 671 and inserted / removed as described above.
Conveyed. At the time of reproduction of the disk 509, as shown in FIG. 3, the transport roller 671 descends with a space below the disk 509, and the downward movement of the sliding piece 672 is limited. Thus, the disk 509 is mounted on the table 508. . A transport roller 671 of the disk transport means 673;
The clamp means 675 is raised to the upper limit position in FIG. 2 to release the mounting of the disk 509 on the table 508, and as shown in FIG. 3, the transport roller 671 and the clamp means 675 are moved to the lower limit position in FIG. Elevating means 676 is provided on both sides of the base 519 of the apparatus main body 505 in order to lower the disk 509 and mount the disk 509 on the table 508.

The clamp means 675 basically includes a clamp member 676 for mounting the inserted disk 509 on the table 508, a holder 678 for holding the clamp member 676, and a clamp member 676 attached to the holder 678 to attach the clamp member 676 to the table. And a spring member 679 that resiliently presses toward 508. The clamp member 677 of the clamp means 675 is displaced up and down by the above-described elevating means 675 between the upper limit position in FIG. 2 and the lower limit position in FIG.

FIG. 4 is a simplified side view corresponding to FIG. 2 showing the upper limit position of the disk 509 of the apparatus main body 505 viewed from the right in FIG. 1, and FIG. 5 is a left side view of the apparatus main body 505 in FIG. FIG. 3 is a side view corresponding to FIG. 2 as viewed from above.
FIG. 6 is a side view corresponding to FIG. 3, showing a state where the disk 509 of the apparatus main body 505 viewed from the left in FIG. 1 is at the lower limit position. The inserted disk 509 is inserted and conveyed in the insertion direction 503 by the disk conveying means 673, lowered by the elevating means 676 together with the clamp means 675, mounted on the table 508 and mounted. With the disc 510 mounted on the table 508 in this manner, the disc 5 is
09 is reproduced or recorded. The disk 509 on the table 508 is lifted by the lifting / lowering means 676 together with the clamp means 675, and thereafter is discharged and transported by the disk transport means 673 in the discharge direction opposite to the insertion direction 503. On the base body 519, a disk detecting unit 771 is arranged in the middle of the transport path of the disk 504 between the insertion / ejection port 502 and the table 508.
This disk detecting means 771
A pair of arms 774 and 775 provided so as to be angularly displaceable around 72 and 773 are included.

The elevating means 676 is provided on the main body 505 of FIG.
And first and second moving members 791 and 792 movable in a moving direction parallel to the insertion direction 503 on the right side (a direction perpendicular to the elevating direction in FIGS. 4 to 6).
Moving member 8 on the left side of apparatus main body 505 in FIG.
32.

FIG. 7 is a plan view of one arm 774, and FIG. 8 is a front view of the arm 774 as viewed from below in FIG. One end of the arm 774 has a contact member 77
6 is fixed. The other end of the arm 774 has a pin 77
An elongated hole 778 is provided which is elongated substantially perpendicular to the second axis.

FIG. 9 is an enlarged plan view of a long hole 778 formed at the other end of the arm 774. This long hole 7
The projection 779 of the arm 775 is fitted into 78.

FIG. 10 is a plan view of the arm 775, and FIG. 11 is a front view of the arm 775 viewed from below in FIG. At one end of the arm 775, a disk 504 is attached.
The contact member 777 which is in contact with the outer peripheral portion is fixed. The above-mentioned convex portion 779 is fixed to the other end of the arm 775. Further, the arm 775 is provided with an operation piece 781.

One of the arms 774 is moved in a direction in which the arms 774 and 775 are closed by a tension spring 783 provided between the arm 774 and the base 519, that is, the contact member 77.
6,777 are applied with a spring force in the direction of approaching each other. The angular displacement of the arms 774 and 775 in the closing direction is limited by the contact portions 784 and 785 provided on the base body 519.

FIG. 12 is a plan view for explaining the operation of the disk detecting means 771. When the small-diameter disc 510 of 8 cmφ is inserted in the insertion direction 503, the contact members 776 and 777 come into contact with the outer periphery of the disc 510, and the arms 774 and 775 are angularly displaced in the opening direction 782. Accordingly, the on / off switching state of one of the two detection switches SW1 and SW2 attached to the base body 519 changes.
Thus, insertion of the disk 510 is detected. FIG.
In 2, the disk 510 is inserted and conveyed in the insertion direction 503 in a state where the disk 510 is in contact with the contact members 776 and 777 and is centered. The centered state refers to a state in which the axis of the central hole 739 of the disk 510 and the rotation axis 507 of the table 508 are in one vertical virtual plane parallel to the insertion direction 503.

FIG. 13 shows that the disk 510 is inserted in the insertion direction 50.
FIG. 7 is a plan view showing the operation of the disc detection means 771 showing a state where the disc detection unit 771 is displaced rightward and is conveyed. Disk 5
The outer peripheral portion of 10 abuts only on one abutting member 777,
At this time, the operating piece 781 has two detection switches SW1,
The switching state of SW2 is changed.

The disk 510 has a relatively small diameter, and even in the state shown in FIG. 13, before reaching the position directly above the table 508, the axis of the disk 510 coincides with the axis 507 of the table 508 to achieve centering. As a result, the arms 774 and 775 are configured so as to be mutually angularly displaceable symmetrically to the left and right in the insertion direction 503 by the same angle. For this purpose, the inner peripheral surface 7 which contacts the outer peripheral surface of the convex portion 779 of the long hole 778 shown in FIG.
The shapes of 86 and 787 are set, for example, by experiments. The outer peripheral surface of the convex portion 779 has a right cylindrical shape.

FIG. 14 is a plan view for explaining the operation of the disk detecting means 771 when a relatively large-diameter disk 504 is inserted and conveyed. When the disk 504 is inserted, the contact members 776, 777
And the switching state of the detection switches SW1 and SW2 changes. Thus, the disks 504, 5 to be inserted / ejected are determined by the logical combination of the switching states of the detection switches SW1, SW2 in FIGS.
10 types can be detected, and a state where a relatively small-diameter disk 510 is displaced to the left or right as shown in FIG. 13 can be detected.

FIG. 15 shows a state in which the second moving member 792 provided in the lifting / lowering means 676 is held in the rest state, which is the upper limit position where reproduction / recording of the disk 509 is not performed, and noise due to rattling is generated. FIG. 3 is an exploded perspective view showing a configuration for preventing the operation from being performed. The end 793 of the moving member 792 has both sides 794 and 795 tapered in the moving direction 796. The moving member 792 has a long and thin plate shape. Both end side portions 7 of the end portion 797 of the end portion 793
98,799 are parallel to the moving direction 796. The end 793 and the tip 797 of the moving member 792 are formed vertically symmetrically.

The holding member 801 made of synthetic resin is
Recess 8 for receiving end 793 and tip 797 of 92
02. The base 519 of the apparatus main body 505 is attached to the bottom of the housing 805 via a damper 806.
Thereby, vibration from the housing 805 to the base 519 is suppressed.

The side wall 803 and the rear wall 80 of the housing 805
4, the holding member 801 is fixed. At the side wall 803, an attachment hole 807 is formed, and cut-and-raised pieces 808 and 809 are formed, thereby forming locking portions 811 and 812. A mounting hole 813 is formed in the rear wall 804.

FIG. 16 is a front view of the holding member 801.
17 is a plan view of the holding member 801, FIG. 18 is a side view of the holding member 801, FIG. 19 is a rear view of the holding member 801, and FIG. 20 is a view taken along the line XX-XX of FIG. FIG. Referring to these drawings, the holding member 801 receives and holds the end 793 in the recess 802 at the leftmost position in FIG. 15 of the moving member 792.
In the recess 802 of the holding member 801, the first holding guide inclined surface 81 tapered in the movement direction 796 corresponding to the end 793.
4 and 815, and a direction perpendicular to the vertical direction in FIGS. 15 to 17 and the moving direction 796 (the direction perpendicular to the plane of the paper in FIGS. 16 and 17; FIGS. 18 to 2).
0), the second holding guide inclined surface 81 that is inclined
6 are formed. Further, the tip portion 79 of the moving member 792
Tip holding section 81 for fitting and holding 7
7 are first and second holding guide inclined surfaces 814 to 816
Is formed continuously.

Thus, the moving member 792 moves in the moving direction 796.
Along the left of FIGS. 15 and 16,
Both end portions 794 and 795 of the end portion 790 are held in contact with the first holding guide inclined surfaces 814 and 815 of the holding member 801, and the front end portion 797 is connected to the second holding guide inclined surface 816. Displaced along the tip end holding portion 817
It is fitted and held tightly. This moving member 792
The E-ring indicated by the reference portion 823 is engaged with guide pins 821 and 822 inserted into the guide slots 818 and 819 (see also FIG. 4 described above), and the moving member 792 is attached to the base 519.
1 to the right in FIG. In this way, the holding member 801 prevents the moving member 792 from generating noise due to rattling.

To attach the holding member 801 to the housing 805, a resilient claw member 825 is formed on the second holding guide inclined surface 816 by a U-shaped through hole 824. The claw member 825 is attached to the mounting hole 80 of the side wall 803.
7 is fitted using the elasticity of the synthetic resin.

A pair of convex portions 826 and 82 of the holding member 801
7 is locked to the locking portions 811 and 812, thereby preventing displacement from the side wall 803. Further, the convex portion 828 forming the tip holding portion 817 fits into the mounting hole 813 of the rear wall 804, thereby forming the side wall 803.
The displacement in the direction away from is prevented. The holding member 801 is further formed with raised portions 829 and 830, and
In addition to the resiliently contacting opposing inner surfaces of the cut-and-raised pieces 808 and 809 formed in No. 3, the convex portion 828 contacts the upper and lower inner surfaces of the mounting hole 813 in FIG. Thus, the holding member 801 is elastically fixed to the housing 805. The holding member 801 is made of, for example, a synthetic resin such as polycarbonate and can be manufactured by injection molding.

The tip 797 of the moving member 792 is
2, an inclined guide surface 831 connected to the second holding guide inclined surface 816 of the recess 802 is formed. Thereby, when the moving member 792 moves in the moving direction 796, it is smoothly guided to the recess 802. The holding member 801 is formed to be plane-symmetric with respect to a symmetry plane along the movement direction 796, whereby the movement member 792 and the base 5
The same can be used in connection with another moving member 832 arranged on the opposite side (left side in FIG. 1) of the nineteen moving members 792. The moving member 832 also constitutes a part of the elevating means 676 which functions to elevate and lower the clamp means 675, and its end is configured similarly to the moving member 792.

FIG. 21 is a plan view of the moving means 835 constituting the elevating means 676, and FIG. 22 is a bottom view of the moving means 835. The elevating means 676 is provided with these moving means 83
5 in addition to the first and second moving members 791, 7 described above.
92 including a lifting operation means 836 including

FIG. 23 is a front view of the moving means 835 shown in FIGS. 21 and 22, and FIG.
22 is a right side view of FIG. 21 as viewed from the right. The moving means 835 is disposed further downstream than the table 508 in the insertion direction 503. A pair of arms 841 and 842 to which a pair of abutting pieces 838 and 839 are attached are attached to a mounting body 837 of the moving means 835 by pins 843 and 84, respectively.
4 is provided so as to be angularly displaceable. Mounting body 837
Is fixed to the base 519. Each of the arms 842 is moved by a tension spring 845 serving as an arm spring.
A spring force is applied in a direction in which the contact pieces 838 and 839 of the first and second 842 approach and close. At the other end of the arm 842,
A slot 846 extending approximately over the radial extension of the pin 844
The protrusion 847 formed on the other end of the arm 841 fits and interlocks. The slot 846 extends elongated substantially perpendicular to the axis of the pin 844. In another embodiment of the present invention,
A long hole 846 may be formed in the arm 841, and a protrusion 847 may be formed in the arm 842. Each arm 841,
The displacement of the one end of 842 in the direction of approach to each other is
37 are limited by raised stops 848, 849.

FIG. 25 is a plan view of the contact piece 838, and FIG. 26 is a right side view of the contact piece 838 in FIG.
FIG. 27 is a rear view of the contact piece 838 as viewed from above in FIG. The contact piece 838 is inserted into the disk 509 to be conveyed.
Abutment portion 851 abutting on the outer peripheral portion of
Operating part 852 fixed to the abutment, contact part 851 and operating part 8
52 and a lock portion 853 fixed to the base member 52 and are integrally formed of a synthetic resin. The mounting hole 854 of the contact portion 851 has a pin 8 fixed to one end of the arm 841.
The contact portion 851 can be angularly displaced around the axis of the pin 855. A spring receiving portion 856 is formed in the lock portion 853, and a lower end of one end of a torsion spring 857 which is a contact piece spring surrounding the pin 855 is received. The other end of the torsion spring 857 is locked to the arm 841, as indicated by reference numeral 858. Thus, the contact piece 838 is given a spring force in the direction 859 shown in FIG. 25 by the action of the torsion spring 857. The direction 859 of the spring force is a direction in which the operating portion 852 approaches the disk 509. The spring force of the torsion spring 857 is smaller than the spring force of the tension spring 845.

A separation portion 891 corresponding to the outer peripheral portion of the disk 509b mounted on the table 508 rather than the contact portion 851 in FIG. 28 is formed farther away from the disk 509b. Reference numeral 509a indicates an upper limit position at the time of insertion / ejection of the disk 509, and reference numeral 509b indicates a state where the disk 509 is mounted on the table 508.
This state is the same for the small-diameter disk 510. In particular, in the present invention, an inverted truncated cone-shaped continuous portion 892 that smoothly extends from the separated portion 891 to the contact portion 851 is formed. Therefore, when the disk 509b mounted on the table 508 in FIG. 28 is lifted, the disk 509b can move so as to smoothly come into contact with the contact portion 851 via the continuous portion 892 from the separation portion 891. Therefore, there is no possibility that the disk 509b is caught between the separating portion 891 and the contact portion 851, and the ascending drive is performed smoothly.

A first guide 861 for guiding the lock 853 is formed on the attachment 837 fixed to the base 519. The first guide portion 861 is constituted by a through hole formed in the attachment body 837. First guide 861
Is a first lock portion guide portion 862 and a second lock portion guide portion 8 connected to the first lock portion guide portion 862.
63 and a locking portion 864 connected to the first locking portion guide portion 862 on the side opposite to the second locking portion guide portion 863.
And When the disk 509 is located on the upstream side of the table 508 in the insertion direction 503 from the position immediately above the table 508, the guide portion 862 for the first lock portion
7 and is guided away from the outer peripheral portion of the disk 509 against the spring force of the disk 7. The guide portion 863 for the second lock portion is
When the disk 509 is located directly above the table 508, the locking portion 853 is in the direction 859 of the spring force of the torsion spring 857.
(See FIG. 25) to be locked. When the lock portion 853 is present in the second lock portion guide portion 863, the end of the torsion spring 857 is separated from the lock portion 853, and thus the spring force of the screw spring 857 is released.

The combination of the arm 382 and the contact piece 839 is the same as the combination of the arm 841 and the contact piece 838, and each of these combinations is shown in FIG.
22 are symmetrical with respect to a plane of symmetry perpendicular to the plane of FIG. 22, and are denoted by the same reference numerals.

FIG. 29 shows that the disk 509 is inserted in the insertion direction 50.
FIG. 9 is a plan view for explaining an operation of a moving unit 835 in a state where the moving unit 835 is inserted into and conveyed to the position 3. A second guide 866 is formed on the side of the driving piece 865 of the first moving member 791 provided in the elevating operation means 836. This second guide part 8
66 has a guide portion 867 for the first operating portion and a guide portion 868 for the second operating portion. Guide portion 86 for first operating portion
The operating portion 852 is arranged so that the lock portion 853 is locked to the second lock portion guide portion 863 when the disk 509 is directly above the table 508 as shown by the imaginary line in FIG.
To guide and hold. The guide portion 867 for the first operating portion is parallel to the insertion direction 503 and the movement direction 796.

When the disk 509 is located on the upstream side of the table 508 in the insertion direction 503 (downward in FIG. 29) as shown by reference numeral 509c in FIG. Guide part 867 for first operating part
The lock portion 853 is connected to the second lock portion guide portion 8.
The operation unit 852 is guided so as to be separated from the 63. The second operating portion guide portion 868 is inclined in a direction away from the disk 509 toward the upstream side (downward in FIG. 29) in the insertion direction 503.

A lever 871 is provided on the arm 841 so as to be angularly displaceable by a pin 869, as clearly shown in FIG. One end 87 of this lever 871
2, the outer peripheral portion of the disk 509 abuts on the upstream side of the insertion direction 503 of the table 508 and in the vicinity immediately above the table 508, and the disk 509 is angularly driven in the direction 873 by the insertion and transportation by the disk transportation means 673. Is done. As a result, the other end 874 of the lever 871
The driving pin 875 protruding from the moving member 791 moves the moving member 791 in the moving direction 796 downward in FIG. The drive piece 865 of the moving member 791 is connected to the horizontal hole 876 to
A vertical hole 877 extending toward the downstream side in the insertion direction 503 is formed closer to the position.

FIG. 30 is a sectional view of the lever 871 and its vicinity. The one end 872 of the lever 871 extends vertically corresponding to an upper limit position 509a when the disc 509 is inserted and ejected, and a lower limit position 509b which is a mounted state on the table 508 during reproduction / recording.

FIG. 31 is a plan view of the first moving member 791, and FIG. 32 is a side view of the first moving member 791.
The first moving member 791 is provided with a spring force toward the downstream side in the insertion direction 503 by a spring 878 provided between the first moving member 791 and the base 519. The first moving member 791 also has a vertical guide hole 881 parallel to the insertion direction 503 and a vertical guide hole 81.
81 has an interlocking portion 883 in which a lateral guide hole 882 is formed so as to be continuous with the downstream end of the insertion direction 503.

The first operating member 791 has a moving direction 796
Are formed. Guide pins 821 and 822 attached to the base 519 are inserted into these guide slots 895 and 896, respectively. Thus, the movement of the first moving member 791 in the moving direction 796 is stably performed, and the end position on the upstream side in the insertion direction 503 by the spring 878 is set by the ends 897 and 898.

FIG. 33 is a view showing a vertical guide hole 881 and a horizontal guide hole 882 in the interlocking portion 883. A rack 884 is fixed to the interlocking portion 883. Rack 8
84 can engage with a pinion 885 provided on the base body 519.

FIG. 34 is a simplified plan view for explaining the operation of the moving means 835 of the elevating means 676 when the small-diameter disk 510 is inserted. When the disk 510 is inserted in the insertion direction 503 and is conveyed, and further moves from the state of the virtual line as shown by the solid line, immediately above the table 508, the small-diameter disk 5
10 contacts the contact portion 851 of the contact piece 838 and does not contact the operating portion 852.

The disk 510 is inserted and conveyed by the disk conveying means 673 with one end 872 of the lever 871 being pressed as indicated by an arrow 886. At this time, the levers 841 and 842 are not angularly displaced around the pins 843 and 844, remain in contact with the stoppers 848 and 849 as described with reference to FIG. , Remain locked to the locking portion 864.

When the lever 871 is angularly displaced around the pin 869 in the clockwise direction in FIG. 34, the driving pin 875 of the lever 871 causes the lateral hole 876 to move through the arrow 887.
Go to As a result, the rack 884
The operation for meshing with No. 5 is performed. Detection switches SW1, SW
2 detects that the disks 509 and 510 have been inserted, the pinion 885 is constantly driven to rotate, and the pinion 885 and the rack 884 are engaged with each other.
The first moving member 791 moves to the arrow 887 by the power of the pinion 885.

By the movement of the first moving member 791 in the direction of the arrow 887, the lifting / lowering operation means 836 lowers the clamp means 675 and the disk 510 on the table 508 and mounts them on the table 508. The drive pin 875 is
With the movement of the first moving member 791 in the direction of the arrow 887, the first moving member 791 moves in the vertical hole 877, and the drive pin 87 of the lever 871 is moved by the upstream end 888 of the vertical hole 877 along the arrow 887.
5 is further displaced in the direction of arrow 887, thereby causing one end 872 of lever 871 to move away from disk 510, as indicated by phantom line 889.

FIG. 35 is a simplified plan view for explaining the operation of the moving means 835 when the large-diameter disk 509 is inserted. When the disk 509 is inserted and transported by the disk transport means 673, first, the outer peripheral portion of the disk 509 contacts the operating portion 852 of the contact piece 831. This state corresponds to FIG. By further inserting the disk 509, the disk 509 angularly displaces the contact piece 838 in the counterclockwise direction in FIGS. 25A and 35 against the spring force of the torsion spring 857.

As a result, the locking portion 853 is
25, and the state shown in FIG. The outer peripheral portion of the disk 509 contacts the contact portion 851.

FIG. 36 is a diagram showing the operation of the moving means 835 when the disk 509 is further inserted in the insertion direction 503 from the state of FIG. 25 (2). Disk 5
The outer peripheral portion of the abutment 09 abuts against the abutment portion 851 of the abutment piece 838 and pushes against the spring force of the tension spring 845. This causes the arm 841 to move around the pin 843 in FIG.
6 is angularly displaced in the counterclockwise direction. The lock portion 853 is
The torsion spring 857 abuts and slides along the first lock portion guide portion 862 of the guide portion 861 with the spring force of the torsion spring 857. At this time, the operating portion 852 is moved from the outer peripheral portion of the disk 509 to
They are spaced apart as indicated by reference numeral d1 in FIG. When the disk 509 is further inserted and conveyed, the one end 872 of the lever 871 is pushed by the outer peripheral portion of the disk 509 and is angularly displaced clockwise in FIG. The disk 509 is shown in FIG.
Contact piece 83 when inserted and transported as shown in FIG.
The state of 8 is as shown in FIG.

FIG. 37 is a simplified plan view of the moving means 835 showing a state in which the disk 509 is further inserted and conveyed in the insertion direction 503 as compared with the state shown in FIG. When the disk 509 reaches just above the table 508, the drive pin 875 of the lever 871, which has been depressed and angularly displaced by the insertion and conveyance of the disk 509, moves through the horizontal hole 876 formed in the drive piece 865 of the first moving member 791. It is displaced and moved to reference numeral 887. As a result, the rack 884 has the pinion 8
This is an initial state in which engagement with the gear 85 starts. At this time, the contact piece 8
The lock portion 853 of 38 has reached the second lock portion guide portion 863 of the first guide portion 861.

FIG. 38 shows an arrow 88 when the rack 884 meshes with the pinion 885 from the state shown in FIG.
It is a figure showing the state when it moved to the direction of 7. FIG.
As shown in (1), the first moving member 791 has an arrow 88
7 in the direction of movement of the
Of the second operating portion 866 abuts on the second operating portion guide member 868 of the second guiding portion 866. As shown in FIG.
When the pinion 885 is moved from the state of FIG. 8 (1) by the power of the pinion 885 in the direction of the arrow 887 as shown in FIG. 38 (2), the operating part 852 of the contact piece 838 becomes the first operating part. Contact portion 867 for use. As a result, the lock portion 853 moves around the axis of the contact portion 851 in FIG.
It is angularly displaced clockwise in (2). Therefore, the lock portion 853 is locked by the second lock portion guide portion 863 of the first guide portion 861.

The drive pin 875 of the lever 871 is
In the state where the first moving member 791 is in the position indicated by the imaginary line 894 in FIG. 38 (2), the drive pin 875 comes into contact with the most upstream end of the vertical hole 877 in the moving direction along the arrow 887. Touch This causes the lever 871 to be angularly displaced around the pin 869 in the clockwise direction in FIG.
2 is separated from the outer peripheral portion of the disk 509. Thus, the clamping means 675 and the disk 509
The operation of the lifting / lowering operation means 836 of the disk 509 is performed.
Is mounted on the table 508.

FIG. 39 is a plan view of the second moving member 792 provided in the elevating operation means 836 constituting the elevating means 676, and FIG. 40 is a right side view of the second moving member 792. The tension spring 901 is interposed between the second moving member 792 and the base body 519, and thereby the guide elongated hole 818,
Guide pins 821, 8
22 comes into contact. An interlocking portion 902 is formed on the second moving member 792.
A guide hole 903 is formed.

The second moving member 792 is formed with an elevation drive hole 904 which is a cam hole.
4, the follower pin 905 is fitted to the clamping means 675.
Is fixed to the holder 678. Therefore, the pinion 88
When the second moving member 792 is moved in the direction of the arrow 887 by the rotation of 5, the lifting drive hole 904 moves the follower pin 905 downward as shown by the arrow 906, so that the clamp means 675 and the disk 509 are The disk 509 is moved from the upper limit position for insertion / ejection to the table 50.
8 will be lowered to the lower limit position where it will be mounted. When the second moving member 792 is moved in the opposite direction of the arrow 887 by the reverse rotation of the pinion 885, the follower pin 905 is moved.
Is displaced in the opposite direction of the arrow 906 and rises from the lower limit position to the upper limit position. Thus, the lifting drive hole 904 and the follower pin 9
05 constitutes the cam mechanism 907.

The second moving member 792 has a rack guide inclined surface 911 and a support portion 912 connected to the rack guide inclined surface 911. The rack guide inclined surface 911 is
The rack 884 has a shape approaching the pinion 885 along the moving direction of the arrow 887. The support portion 912 guides and supports a back portion 913 of the rack 884 on a side opposite to the pinion 885.

FIG. 41 shows the interlocking section 9 of the second driving member 792.
It is an enlarged plan view near 02. Guide hole 9 of interlocking section 902
03, a vertical hole portion 908, an inclined surface 909 for smoothly moving the interlocking pin 915 described later in a horizontal direction, and a horizontal hole 910 are formed continuously.

FIG. 42 shows the first and second moving members 79.
It is sectional drawing which shows 1,792, rack 884, and pinion 885. The rack 884 is fixed to the first moving member 794 by bolts 914.

FIG. 43 shows the first and second moving members 79.
FIG. 8 is a simplified plan view for explaining an operation in which a rack 884 and a pinion 885 are engaged with each other by moving 1,792. As shown in FIG. 43A, when the disc is inserted, the drive pin 875 of the lever 871 exists in the horizontal hole 876 formed in the drive piece 865 of the first moving member 791. A vertical guide hole 881 formed in the interlocking portion 883 of the first moving member 791;
An interlocking pin 915 is commonly inserted into a vertical hole 908 formed in the interlocking portion 902 of the second moving member 792. The interlocking pin 915 is erected on an interlocking member 917 provided on the base body 519 so as to be angularly displaceable about the pin 916.
An operation protrusion 918 is formed on the interlocking member 917. A clamp completion detection switch 919 is fixed to the base 519. When the clamp completion detection switch 919 detects the operation protrusion 918, the clamp 675 is at the lower limit position, and the disk 509 is mounted on the table 508.

In FIG. 43A, the lever 871 is angularly displaced by the insertion and conveyance of the disk 509 in the insertion direction 503 as described above, and the drive pin 875 moves the horizontal hole 876 of the first moving member 791 into the horizontal hole 876 in FIG. Arrow 8 below 1)
It moves in the direction indicated by 87 against the spring force of the spring 878. As a result, the interlocking pin 915 becomes
As clearly shown in FIG. 9, the first moving member 791 moves in the vertical guide hole 881 of the interlocking portion 883 as indicated by an arrow 921. While the interlocking pin 915 is moving in the vertical guide hole 881, the second moving member 792 remains stationary.

When the first moving member 791 moves in the direction of the arrow 887, the rack 884
This is the initial state shown in FIG. 43 (2) in which the operation for meshing with No. 5 is started. When the first moving member 791 is moved in the direction of the arrow 887, the end 9 of the back portion 913 of the rack 884 is moved.
24 is guided by the rack guide inclined surface 911 and is pressed toward the end 922 of the rack 884. Therefore, in an initial state where the end 922 of the rack 884 is engaged with the pinion 885, the end 922 of the rack 884 is
There is no displacement from 85 to the right in FIG. 43B, and the engagement between the rack 884 and the pinion 885 is ensured.

After the rack 884 meshes with the pinion 885, the first moving member 791 is moved in the direction of the arrow 887 by the power of the pinion 885. At this time, the interlocking pin 915 moves from the inclined surface 909 formed on the interlocking portion 902 of the second interlocking member 792 as described above with reference to FIG.
It moves in the direction indicated by the arrow 923. In this way, the interlocking pin 915 is inserted through the horizontal guide hole 882 (see FIG. 33) of the interlocking portion 883 and the horizontal hole 910 of the interlocking portion 902, and moves as shown in FIG. In this way, the back 913 of the rack 884 is
The rack 884 is received and supported by the support portion 912 connected to No. 1 to prevent the rack 884 from being displaced rightward in FIG. 43 (3) from the pinion 885.

When the first and second moving members 791 and 792 move in the directions indicated by the arrows 887 by the power of the pinion 885, the interlocking pin 915 is moved by the angular displacement of the arrow 925 of the interlocking member 917. And the horizontal hole 910 are moved in the above-mentioned arrow 923 and in the opposite direction. When the clamp state is completed, the operation protrusion 918 of the interlocking member 917 operates the clamp completion detection switch 919. By detecting the completion of clamping in this way,
The motor driving the pinion 885 is stopped. The drive of the pinion 885 is started by the detection switches SW1 and SW2 related to FIGS.
It starts by detecting 9,510.

When the disk 509 on the table 508 is ejected, the pinion 885 is rotated in reverse by the reverse rotation of the motor. Therefore, the rack 884 and the first and second moving members 791 and 792 move in the direction opposite to the arrow 887, and the clamp mechanism 675 and the disk 509 are raised by the action of the cam mechanism 907. Thus, the states shown in FIGS. 43 (2) and 43 (1) are traced in this order to return to the initial state. As a result, the drive pin 875 is moved by the horizontal hole 876 in FIG.
3 (1), the lever 871 is angularly displaced counterclockwise in FIG.
3 is pressed and displaced in the discharge direction which is the opposite direction. Disk 5
09 is ejected and conveyed by the disk conveying means 673 by reverse rotation when the conveying roller 671 is inserted.

Although the operation of the elevating means 836 has been described mainly in relation to the large-diameter disk 509,
Similar operations are performed for the small-diameter disk 510.

The moving member 832 opposite to the first and second moving members 791 and 792 moves like the second moving member 792 in conjunction with the second moving member 792. This moving member 832 is also configured similarly to the above-described end portion 793, and is provided with a cam mechanism 907. Contact piece 8
In relation to 39, another second guide portion 926 formed symmetrically with the second guide portion 866 is formed.

[0073]

According to the first aspect of the present invention, the tapered end 7 of the moving member 792 provided on the elevating means 676 including the cam mechanism 907 for elevating the clamp means 675 and the like.
93 is received and held by the holding member 801 provided at the fixed position, whereby the vibration of the moving member 792 in the elevating / lowering means 676 where a manufacturing error easily occurs can be prevented, and the generation of noise can be prevented.

According to the second aspect of the present invention, the moving member 79
The second tapered end portion 793 is held by the first and second holding guide inclined surfaces 814, 815, and 816 of the holding member 801 to prevent rattling displacement in directions perpendicular to each other and reduce noise. It can be even more secure.

According to the third aspect of the present invention, the leading end 797 of the tapered end 793 of the moving member is connected to the first and second holding guide inclined surfaces 814, 815; 81 of the holding member 801.
Since the holding member 801 is fitted and held tightly by the front end holding portion 817 connected to 6, the backlash of the holding member 801 can be more reliably prevented, and generation of noise can be prevented.

According to the fourth aspect of the present invention, the moving member 792 is provided on the base 519 on which the table or the like is mounted, and the holding member is fixed to the housing on which the base is mounted via the damper 806. Displacement of the moving member relative to the housing is reliably suppressed, and noise can be more reliably prevented from being generated.

According to the fifth aspect of the present invention, the holding member 80
1 is fixed to the housing using the elasticity made of synthetic resin, so that the assembly is easy, the manufacturing is easy, the productivity is improved, and the moving member is attached to the holding member with low frictional force. The guide is moved and held, and the operation is performed smoothly.

[Brief description of the drawings]

FIG. 1 is a simplified plan view showing the overall configuration of an embodiment of the present invention.

FIG. 2 shows an insertion / ejection port 502 of the disc reproducing apparatus 501.
FIG. 11 is a front view showing the upper limit position of the disk 509 in which the disk 509 as viewed from above exists right above the table 508 at intervals.

FIG. 3 is a front view showing a state where a disk 509 is mounted on a table 508 and is at a lower limit position for reproduction.

FIG. 4 is a simplified side view corresponding to FIG. 2 and showing the upper limit position of the disk 509 as viewed from the right side in FIG. .

FIG. 5 is a side view of the apparatus main body 505 corresponding to FIG. 2 as viewed from the left in FIG.

FIG. 6 is a side view corresponding to FIG. 3, showing a state in which a disk 509 of the apparatus main body 505 viewed from the left in FIG. 1 is at a lower limit position.

FIG. 7 is a plan view of one arm 774. FIG.

FIG. 8 is a front view of the arm 774 as viewed from below in FIG. 7;

FIG. 9 shows a long hole 778 formed at the other end of the arm 774;
FIG. 4 is an enlarged plan view of FIG.

FIG. 10 is a plan view of an arm 775. FIG.

11 is a front view of the arm 775 viewed from below in FIG.

FIG. 12 is a plan view for explaining the operation of the disk detecting means 771.

FIG. 13 shows a disk detecting unit 77 showing a state where the disk 510 is displaced rightward in the insertion direction 503 and is inserted and transported.
FIG. 2 is a plan view showing the operation of FIG.

FIG. 14 is a plan view for explaining the operation of the disc detecting means 771 when a relatively large-diameter disc 504 is inserted and conveyed.

FIG. 15 shows a configuration for holding a second moving member 792 provided in the elevating means 676 in a rest state in which reproduction / recording of the disk 509 is not performed, and preventing generation of noise due to rattling. FIG.

FIG. 16 is a front view of a holding member 801.

FIG. 17 is a plan view of a holding member 801.

FIG. 18 is a side view of the holding member 801.

FIG. 19 is a rear view of the holding member 801.

FIG. 20 is a cross-sectional view taken along the line XX-XX of FIG. 16;

FIG. 21 is a plan view of a moving unit 835 constituting the elevating unit 676.

FIG. 22 is a bottom view of the moving means 835.

23 is a moving means 83 shown in FIGS. 21 and 22.
5 is a front view of FIG.

24 is a right side view of the moving means 835 as viewed from the right side in FIG. 21.

FIG. 25 is a plan view of a contact piece 838. FIG.

FIG. 26 is a right side view of the contact piece 838 in FIG. 25;

FIG. 27 is a rear view of the contact piece 838 as viewed from above in FIG. 25;

FIG. 28 is a sectional view of the vicinity of a contact portion 851 of a contact piece 838.

FIG. 29 is a plan view for explaining the operation of the moving means 835 when the disk 509 is inserted and conveyed in the insertion direction 503.

FIG. 30 is a sectional view of a lever 871 and its vicinity.

31 is a plan view of a first moving member 791. FIG.

32 is a side view of the first moving member 791. FIG.

FIG. 33 is a view showing a vertical guide hole 881 and a horizontal guide hole 882 in an interlocking portion 883.

FIG. 34 is a simplified plan view for explaining the operation of the moving means 835 of the elevating means 676 when the small-diameter disk 510 is inserted.

FIG. 35 is a simplified plan view for explaining the operation of the moving means 835 when a large-diameter disk 509 is inserted.

36 is a diagram illustrating an operation of the moving unit 835 when the disk 509 is further inserted in the insertion direction 503 from the state of FIG. 25 (2).

FIG. 37 is a simplified plan view of the moving means 835 showing a state in which the disk 509 is further inserted and conveyed in the insertion direction 503 compared to the state of FIG. 36.

38 is a diagram illustrating a state where the rack 884 is moved in the direction of the arrow 887 by engaging with the pinion 885 from the state illustrated in FIG. 37.

FIG. 39 shows elevating operation means 83 constituting the elevating means 676
6 is a plan view of a second moving member 792 provided in 6. FIG.

40 is a right side view of the second moving member 792. FIG.

FIG. 41 is an enlarged plan view of the vicinity of an interlocking portion 902 of a second driving member 792.

42 is a sectional view showing first and second moving members 791, 792, a rack 884, and a pinion 885. FIG.

FIG. 43 is a simplified plan view for explaining an operation in which the rack 884 and the pinion 885 mesh with each other as the first and second moving members 791 and 792 move.

[Explanation of symbols]

 501 DVD playback device 502 Insertion / ejection port 503 Insertion direction 505 Device main body 508 Table 509, 510 Disk 511 Optical pickup 519 Base 673 Disk transport means 675 Clamp means 771 Disk detection means 774, 775 Arm 776, 777 Contact member 791 First movement Member 792 Second moving member 793 End 797 Tip 798, 799 Tip side 801 Holding member 805 Housing 806 Damper 814, 815 First holding guide slope 816 Second holding guide slope 817 Tip holding section 832 Moving member 835 Moving means 836 Elevating means 838,839 Contact piece 841,842 Arm 845 Tension spring 846 Slot 847 Convex part 851 Contact part 852 Working part 853 Lock part 857 Torsion spring 861 First Guide portion 862 First lock portion guide portion 863 Second lock portion guide portion 864 Locking portion 866 Second guide portion 867 First operating portion guide portion 868 Second operating portion guide portion 871 Lever 872 One end portion 874 Others End part 884 Rack 885 Pinion 891 Separation part 892 Continuous part 902 Interlocking part 907,833 Cam mechanism 926 Second guide part SW1, SW2 Detection switch

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Minoru Fujita 1-2-28 Goshodori, Hyogo-ku, Kobe-shi, Hyogo Inside Fujitsu Ten Co., Ltd. (72) Inventor Noboru Hidaka 1 Goshodori, Hyogo-ku, Hyogo F-term (reference) in Fujitsu Ten Co., Ltd. 2-28 Chome 5D038 AA01 BA04 EA06

Claims (5)

[Claims] 1. (a) A clamp means 675 for mounting a disk on a rotatable table 508 is moved up and down in the vertical direction of the table by a vertical means 676. (b) The vertical means 676 is moved in the vertical direction. To the end 7 of the moving direction 796
93 has a moving member 792 formed in a tapered shape, and a cam mechanism for driving the clamp means in the elevating direction in conjunction with the moving direction of the moving member. A disk device comprising a holding member 801 that receives and holds the tapered end portion 793 at the end position in the moving direction of the moving member. 2. The moving member 792 has an elongated plate shape, and the end portion 793 has both side portions 794 and 79 along the moving direction.
5 is tapered, and the holding member 801 is formed in a tapered shape in the moving direction corresponding to the end 793, and the first holding guide inclined surface 814 for guiding the both sides 794, 795 of the end. , 815, and a second holding guide inclined surface 816 that slides and guides the end portion in a direction perpendicular to the vertical direction and the moving direction. The distal end 797 of the end 793 formed into a tapered shape of the moving member 792 has two distal side portions 79.
8,799 are formed so as to be parallel to the moving direction. The holding member 801 has a tip holding portion to which the tip portion 797 fits and holds the first and second holding guide inclined surfaces 814. 815; 816; 4. The moving member is provided on a base 519 to which a table is mounted, the base is mounted on a housing 805 via a damper 806, and the holding member is fixed to the housing 805. The disk device according to claim 1. 5. The holding member 801 is made of a synthetic resin.
The disk device according to claim 4, wherein the disk device is fixed to the housing using the elasticity of the material.