JP3473620B2 - Dual-purpose media player - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual-purpose media player (for example, a dual-purpose disc player for mini discs and compact discs).

[0002]

2. Description of the Related Art As a loading mechanism of a disc player for both mini discs and compact discs, for example, Japanese Patent Laid-Open No. 7-296499 (Patent Document 1) "Mini disc and compact disc player",
Further, as a loading mechanism for a single mini disc, for example, a mechanism shown in FIG. 13 described later is known. As shown in FIG. 1 of the publication, the above is a mini disk cartridge (hereinafter, abbreviated as “MD cartridge”) in which a compact disk tray 20 is slidably arranged on a base plate 16 for carrying in a compact disk and a mini disk is stored. A mini disc tray 34 is slidably arranged in the compact disc tray 20 for loading the compact disc tray 2.
A part of the side wall of 0 is provided with a mini disk cartridge insertion opening 51, and a part of the side wall of the mini disk tray 34 is opened with a mini disk cartridge insertion opening 50.

That is, the rotating parts of the mini disk and the compact disk are vertically arranged on the chassis, respectively, and a pickup for both the mini disk and the compact disk is slidably arranged between these rotating parts, and is placed in the tray for the compact disk. It has a mini disk tray.

FIGS. 13A to 13D are views showing an example of a conventional loading mechanism for a single mini disc.
(A) shows a conventional loading mechanism 100 for a mini disc, a mini disc cartridge 101 (hereinafter referred to as "M disc").
It is abbreviated as "D cartridge 101". ) Shows the state before insertion.

The loading mechanism 100 includes a mini disk holder 102, a carrying frame 103 slidably mounted on the mini disk holder 102, and carrying means (not shown) for moving the carrying frame 103.
Consists of. The MD cartridge 101 includes recesses 101a and 101a for carrying and a shutter 101b. The transport frame 103 includes a pair of clampers 104 and 104 for fitting into the recesses 101a and 101a of the MD cartridge 101, and tension springs 105 and 105 that apply a force to the clampers 104 and 104 outward. . The arrow a indicates the insertion direction of the MD cartridge 101.

[0006] (b) is an M disc on the mini disc holder 102.
It shows that when the D cartridge 101 is inserted, the MD cartridge 101 pushes and opens the tips of the clampers 104, 104 outward as indicated by arrow b. In (c), when the MD cartridge 101 is further pushed, the tips of the clampers 104, 104 are recessed in the MD cartridge 101 as indicated by arrow c.
1a and 101a have been fitted. (D) shows that the carrying frame (103) is moved by the carrying means (not shown) as shown by the arrow d, and the loading of the MD cartridge 101 is completed. Although only the loading operation has been described in the above description and the operation of opening the shutter 101b of the MD cartridge 101 is omitted, a mechanism for opening the shutter 101b by the time the loading is completed is added.

[0007]

[Patent Document 1] JP-A-7-296499

[0008]

However, the above technique requires a depth because it is a tray system, and it is difficult to downsize a disc player for both mini discs and compact discs. Further, the MD cartridge and the compact disc each require a dedicated tray, which increases the cost. Since the above-mentioned technique is a mechanism dedicated to loading the MD cartridge, another mechanism for loading the compact disc is required, and it is difficult to use the loading mechanism for the dual-purpose disc player.

An object of the present invention is to reduce the size and weight of a dual-purpose media player.

[0010]

In order to solve the above problems, a dual-purpose media player having the following structure is provided.

(1) At least two types of media, a first medium and a second medium, are selectively inserted into one housing, and the information recorded on the first or second medium is recorded. In the dual-purpose media player for reading, the first medium stores a disc having a first diameter in a cartridge, and a slide for exposing the disc on the right side in the insertion direction of the cartridge with respect to the housing. It has a free shutter, and the second
Is not housed in a cartridge, has a second diameter larger than the first diameter, and has an insertion port for the first medium and an insertion port for the second medium, A panel having a media insertion port in which the central position of the insertion port of the first medium is displaced to the left of the central position of the insertion port of the second medium; and a disc for rotating the first medium. One rotation unit, a second rotation unit that rotates the second medium, and the first and second rotatably arranged between the first rotation unit and the second rotation unit. A dual-purpose media player comprising a pickup that also serves as a medium.

(2) The above-mentioned medium insertion port is formed as an integral opening by connecting the insertion port of the first medium and the insertion port of the second medium. 1) The dual-purpose media player described above.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of the reference numerals. FIG. 1 is an exploded perspective view of a mini-disc and compact disc dual-purpose disc player, which is an embodiment of the dual-purpose media player according to the present invention. Disc player for both mini discs and compact discs 1
Is a box-shaped housing 2, a panel 3 mounted on the front surface of the housing 2, an upper cover 4 covering the upper surface of the housing 2, and a floating chassis 5 as a chassis floatingly mounted on the housing 2. A mechanical unit 10 rotatably attached to the floating chassis 5, a rotation mechanism 30 for horizontally rotating the mechanical unit 10, a clamp unit 40 for holding an MD cartridge containing a mini disk and a compact disk. , A loading mechanism 50 for loading the mini disk and the compact disk into the panel 3.

The panel 3 has an insertion opening 7 for a large diameter compact disc (12 cm compact disc) and a small diameter compact disc (8 cm compact disc).
A mini disk insertion opening 7a is formed integrally with a part of the compact disk insertion opening 7. The floating chassis 5 includes a support portion 5a that supports the mechanical unit 10 so as to be horizontally rotatable.

FIG. 2 is a plan view of a disc player for both mini discs and compact discs according to the present invention, showing a mechanical unit 10 and a rotation mechanism 30. The mechanical unit 10 includes a substantially rectangular revolving frame 11 and a mini-disc rotating unit 12 provided on the revolving frame 11.
And a compact disc rotating unit 13 provided facing the mini disc rotating unit 12, and a mini disc and compact disc combined pickup 1 movably arranged between the rotating units 12 and 13.
4 and a feed mechanism 15 for driving the dual-purpose pickup 14.

The revolving frame 11 has a hole 11a fitted into the support portion 5a of the floating chassis 5 and a rotating mechanism 3.
And a cam groove 11b which is fitted to 0. The rotating unit 12 for the mini disk includes a motor 18 attached to the revolving frame 11 and a turntable 19 attached to the motor 18.
Consists of. Rotating unit for compact disc 13
Is composed of a motor 21 attached to the revolving frame 11 and a turntable 22 attached to the motor 21. The feed mechanism 15 is a feed motor 2 attached to the revolving frame 11.
3 and a feed screw 25 connected to the feed motor 23 via a gear group 24 for moving the mini-disc / compact disc dual-purpose pickup 14.

The rotating mechanism 30 includes a motor 31 attached to the floating chassis 5 and a gear group 3 attached to the motor 31.
Cam gear 33 connected via 2 and this cam gear 33
And a transmission lever 34 that transmits the movement of the movement to the revolving frame 11. The cam gear 33 includes a gear portion 33a that meshes with the gear group 32, and a cam groove 33b that fits into the transmission lever 34. The transmission lever 34 is a plate-shaped lever body 34a.
A support portion 34b rotatably attached to the floating chassis 5, a first pin 34c fitted into the cam groove 11b of the revolving frame 11, and a cam groove 33 of the cam gear 33.
and a second pin 34d fitted to b. Motor 3
By rotating 1, the cam gear 33 rotates via the gear group 32, and the transmission lever 34 rotates by the second pin 34d fitted in the cam groove 33b of the cam gear 33. Revolving frame 1 by pin 34c
This is to rotate 1 horizontally.

FIG. 3 is a plan view of the clamp unit and the loading mechanism according to the present invention, and FIG. 4 is a side view of the clamp unit and the loading mechanism according to the present invention. The clamp unit 40 has one end rotatably attached to the floating chassis 5 within a predetermined angle, a leaf spring 42 attached to the other end of the clamp holder 41, and a rotatably held by the leaf spring 42. The clamper 43, the tension springs 44, 44 laid between the clamp holder 41 and the upper cover 4, and a driving means (not shown) for operating the clamp holder 41.

The loading mechanism 50 includes a first roller unit 51 rotatably attached to the floating chassis 5, a second roller unit 52 rotatably attached to the first roller unit 51, and these roller units. A drive unit 53 for rotating 51, 52, a rotary lever 54 as a level adjusting means connected to the first roller unit 51, and a mini disk holder 9 provided near the turntable 19 from the second roller unit 52.
It consists of 0 and.

The first roller unit 51 is rotatably mounted between the first roller frame 56 rotatably mounted on the floating chassis 5 within a predetermined angle and the left and right side plates of the first roller frame 56. The first roller 57 and the transmission shaft 58 rotatably attached to the first roller frame 56.

The first roller frame 56 has a transmission shaft 58.
The intermediate gears 59 and 61 connected to each other and the reversing spring 62 that is bridged between the floating chassis 5 are provided. Incidentally, 56a is a hole for fitting with the second roller unit 52, and 56b, 56b are supporting portions for rotatably supporting the first roller frame 56 on the floating chassis 5. The first roller 57 includes a roller shaft 63, a long rubber roller 64 attached to the roller shaft 63, and a rubber roller 64 having a drum-shaped center portion. The first roller 57 is rotatably attached to one end of the roller shaft 63. It comprises a free roller 65 formed to have a diameter slightly larger than the diameter of the end portion of 64, and a final gear 66 attached to the other end of the roller shaft 63. At this time, the first roller 57 is formed to be long so that a large-sized compact disc (12 cm compact disc) can be conveyed. The transmission shaft 58 includes a shaft main body 68 and the shaft main body 68.
The drive gear 69 is mounted in the middle of the above, and the transmission gears 71 and 72 are mounted on both ends of the shaft body 68.

The second roller unit 52 is provided inside the first roller frame 56, and is attached to the second roller frame 73 which is rotatably attached to the shaft body 68 via a collar (not shown). A second roller 74 rotatably mounted between the left and right side plates of the second roller frame 73 and a flip-up lever 75 for flipping up the second roller frame 73. At this time, the second roller 74 is formed in a short length so that the MD cartridge can be conveyed, and is provided substantially parallel to the first roller 57.

The second roller frame 73 is connected to the transmission shaft 58 via the transmission gear 72 on the left side in the figure, and the intermediate gear 7 is connected.
7 is provided. Incidentally, 73a is a convex piece fitted in the hole of the first roller frame, and 73b is a fitting groove fitted in the flip-up lever 75. The second roller 74 has a roller shaft 79.
A resin roller 81 attached to the roller shaft 79 and a rubber roller 82 covering one end of the resin roller 81.
And a final gear 83 attached to one end of the roller shaft 79 on the rubber roller 82 side. The flip-up lever 75
Shaft 7 rotatably attached to the first roller frame 56
5a, a lever portion 75b that is operated by feeding the MD cartridge, and an operating portion 7 that flips up the second frame.
5c. Reference numeral 85 is a torsion spring that is stretched between the lever portion 75b and the first roller frame 56 to return the flip-up lever 75 to a predetermined position.

The driving unit 53 is the floating chassis 5
A motor 86 attached to the motor 86, a worm gear 87 attached to a shaft 86a of the motor 86, and a connecting gear 88 meshed with the worm gear 87. The connecting gear 88 meshes with the drive gear 69 described above. Since the compact disc is carried to the first roller 57 and the MD cartridge is carried to the second roller 74, one driving unit 53 easily drives the first roller 57 and the second roller 74. be able to. Since the second roller 74 is provided within the length of the first roller 57, the loading mechanism 50 can be made smaller and lighter.

FIG. 5 is a side view of the loading mechanism according to the present invention. The rotating lever 54 and the first roller frame 5 are shown in FIG.
6 and the reversing spring 62 are shown in relation to each other. Rotating lever 5
4 is a U groove 54a fitted to the roller shaft 63, and a fulcrum 54b rotatably attached to the floating chassis 5.
And a drive pin 54c fitted to a drive means (not shown). At this time, the support portions 56b and 56b that rotatably support the first roller frame 56 and the shaft body 68 that rotatably supports the second roller frame 73 are on substantially the same axis. When the drive means (not shown) slides the drive pin 54c of the rotary lever 54 laterally in the direction of the white arrow A, the rotary lever 54 rotates about the fulcrum 54b. The first roller frame 56 rotates together with the second roller frame 73 around the support portion 56b in the direction of the white arrow B, and is displaced by the force of the reversing spring 62 as shown by the chain double-dashed line. Show.

FIG. 6 is a side view of the main part of the loading mechanism according to the present invention, showing the mutual relationship between the first roller frame 56, the second roller frame 73 and the flip-up lever 75. The second roller frame 73 is rotatably attached to the transmission shaft 58 via a collar (not shown). It shows that the protruding piece 73a and the hole 56a are in a fitted state. The operating portion 75c is fitted in the fitting groove 73b, and when a force in the direction of the hollow arrow D acts on the lever portion 75b, the lever portion 75b rotates counterclockwise around the shaft portion 75a, so that the second roller frame 73 is mounted on the shaft body 68. Rotate in the direction of the white arrow E centering around. The second roller frame 73 jumps up, and the convex piece 73a of the second roller frame 73 contacts the hole 56a, so that the second roller frame 73 causes the first roller frame 56 to move.
Also shows that it jumps up. Since the torsion spring 85 is bridged between the lever portion 75b and the first roller frame 56, it is shown that if the force in the white arrow D direction is removed, the torsion spring 85 returns to the predetermined position.

FIG. 7 is a plan view of the mini disk holder according to the present invention. The mini disc holder 90 includes a holder body 91 and a shutter opening / closing unit 92 rotatably attached to the holder body 91. The holder body 91 is
Support shaft 91a of shutter opening / closing unit 92 and side guide portions 91b, 91 for guiding the side surface of the MD cartridge.
c, and front guide portions 91d and 91e for loading the MD cartridge without being caught. The shutter opening / closing unit 92 has an opening / closing holder 93 attached to the support shaft 91a so as to be rotatable within a certain range, a shutter opening / closing spring piece 94 attached to the opening / closing holder 93, and a holder body 91 and an opening / closing holder 93. And a tension spring 95. The opening / closing holder 93 includes an unlocking piece 93a of the MD cartridge and a fitting hole 93b for fitting the support shaft 91a.
Equipped with.

The loading mechanism 5 of the above-mentioned disc player for both mini discs and compact discs.
The operation of 0 will be described below. 8A to 8C are explanatory views (first) of the operation of the loading mechanism according to the present invention,
The mini disk cartridge M (hereinafter abbreviated as "MD cartridge M") from the insertion opening 7a provided on the panel 3.
The figure shows the inserted. In addition, (a) shows the front of the disc player 1 for both minidisc and compact disc, (b) shows the plane, and (c) shows the side. (A)
Indicates that the MD cartridge M can be inserted only through the insertion port 7a and cannot be inserted through the insertion port 7. (B) shows that the mechanical unit 10 is in a position where the MD cartridge M can be loaded. Since the MD cartridge M can be regulated in its lateral position with respect to the panel 3 by the insertion opening 7a, It indicates that the positions of the cartridge M and the turntable 19 in the lateral direction are the same. (C) shows that the MD cartridge M has been inserted just before the loading mechanism 50.

FIGS. 9A to 9C are explanatory views (second) of the operation of the loading mechanism according to the present invention. (A) is M
By inserting the D cartridge M as indicated by the arrow, the flip-up lever 75 (see FIG. 6) is operated, the second roller unit 52 is flipped up, and the convex piece 73a of the second roller frame 73 causes the first roller to move. Indicates that the unit 51 has been pushed up. When the MD cartridge M is inserted to a predetermined position, the detection switch (not shown) detects the MD cartridge M, and the first roller 57 rotates as shown by an arrow.
The second roller 74 rotates reversely to the first roller 57 as indicated by the arrow. (As described in FIGS. 3 and 4, the first roller unit 51 includes two intermediate gears 59 and 61 (see FIG. 3), and the second roller unit 52 includes one intermediate gear 79 (see FIG. 3)), the first roller 5
7 and the second roller 74 always rotate in reverse. )

(B) shows that the second roller 74 is brought into contact with the upper surface of the MD cartridge M to convey the MD cartridge M toward the turntable 19, and the MD cartridge M itself moves the first roller 57. It shows that it moves as shown by the arrow while pushing it further upward. The first
The roller 57 is rotating in the reverse direction of the second roller 74, but the upper surface of the MD cartridge M is in contact with the free roller 65 of the first roller. Therefore, the first roller 57
Does not hinder the transportation of the mini disk M. (C)
After transporting the MD cartridge M to a predetermined position, the second roller 74 is stopped, the rotation lever 54 is operated to chuck the turntable 19, and the clamp unit 40 is rotated. That is, the second roller 74 and the clamper 43 are connected via the rotary lever 54 and the first roller.
And indicate that the MD cartridge M has been clamped.

Since the second roller 74 is attached to the chassis (floating chassis 5) side through the first roller 57 and the level adjusting means (rotating lever 54), MD
After transporting the cartridge M to a predetermined position, the second
The roller 74 can function as a clamping means. On the other hand, since the MD cartridge M operates to open the shutter in the middle of conveyance of the MD cartridge M shown in (a) to (c), it will be described with reference to the following drawing.

10 (a) to 10 (e) are explanatory views (third) of the operation of the loading mechanism according to the present invention, showing the shutter opening / closing operation of the MD cartridge M. In (a),
The MD cartridge M includes a housing M1 and a shutter M2 slidably attached to the housing M1. The housing M1 includes a shutter release groove M3 for releasing the lock of the shutter M2 and a lock portion M4 provided in the shutter release groove M3, and the shutter M2 includes a hole M5 for moving the shutter M2. Holder body 91
When the MD cartridge M is inserted as indicated by the arrow, it indicates that one end of the housing M1 comes into contact with the lock release piece 93a.

(B) shows that when the MD cartridge M is further loaded into the holder body 91, one end of the housing M1 pushes the lock release piece 93a and rotates as indicated by an arrow. (C) shows the shutter opening / closing unit 9 when the MD cartridge M is further loaded into the holder body 91.
Reference numeral 2 indicates that the lock releasing piece 93a is parallel to the inserting direction of the MD cartridge M, and the lock releasing piece 93a is fitted in the shutter releasing groove M3.

In (d), when the MD cartridge M is further carried into the holder body 91, the lock release piece 93a pushes the lock button M4 and the shutter opening / closing spring piece 94 is fitted in the hole M5 of the shutter M2. (E) shows that the shutter M2 is opened by loading the MD cartridge M into the holder main body 91 to a predetermined position. The mini disk holder 90 is provided with a shutter opening / closing unit 92 for the MD cartridge M.
Since the D cartridge M is rotatable so that it can be put into use when it is in use and the rest can be stored in the standby position, the depth of the loading mechanism can be reduced.

FIGS. 11 (a) to 11 (c) are explanatory views (fourth) of the operation of the loading mechanism according to the present invention, showing a state in which the compact disc C is inserted from the insertion opening 7 provided in the panel 3. In addition, (a) shows the front of the disc player 1 for both minidisc and compact disc, (b) shows the plane, and (c) shows the side. (A) shows that the compact disc C can be inserted from the insertion opening 7.
(B), when the compact disc C is inserted, a detection switch (not shown) detects that it is the compact disc C, and the rotation mechanism 30 causes the mechanical unit 1 to operate.
Indicates that 0 is rotated to a predetermined position. (C) is
Compact disc C just before the loading mechanism 50
Shows a state in which is inserted.

12A and 12B are explanatory views (fifth) of the operation of the loading mechanism according to the present invention. (A) is
It is shown that the first roller 57 rotates as indicated by the arrow and the first roller 57 is brought into contact with the lower surface of the compact disc C to convey the compact disc C as indicated by the arrow. The second roller 74 is the first roller 5 as indicated by the arrow.
Although rotating in the opposite direction to 7, the level of the second roller 74 is low. Therefore, the second roller 74 does not hinder the conveyance of the compact disc C. (B) shows that after the compact disc C is conveyed to a predetermined position, the rotary lever 54 is operated to chuck the turntable 22, and the clamp unit 40 is rotated to clamp the compact disc C. The compact disc with a small diameter (8 cm compact disc) is also shown in FIG.
It can be conveyed by the first roller 57 in the procedure shown in FIG.

In this embodiment, the first and second roller units are rotated by using the level adjusting means as a rotation system, but it is not always necessary to rotate and the first and second roller units may be slid up and down. Good.

[0038]

As described in detail above, in the dual-purpose media player of the present invention, the first medium accommodates the disc having the first diameter in the cartridge, and is directed toward the insertion direction of the cartridge into the housing. It has a slidable shutter to expose the disc on the right side,
The second medium is not stored in the cartridge,
A second diameter larger than the first diameter, having a first media insertion opening and a second media insertion opening;
A panel having a media insertion port in which the center position of the media insertion port is displaced to the left of the center position of the second media insertion port, and a first rotation unit for rotating the disc of the first media. A second rotation unit for rotating the second medium, and first and second movably arranged between the first rotation unit and the second rotation unit.
Since it is configured to include a pickup that also serves as the medium, it is possible to reduce the size and weight of the disc player that also serves as a mini disc and a compact disc.

[Brief description of drawings]

FIG. 1 is a dual-purpose media player according to the present invention (a dual-purpose disc player for mini discs and compact discs).
FIG.

FIG. 2 is a dual-purpose media player according to the present invention (a dual-purpose disc player for mini discs and compact discs).
FIG.

FIG. 3 is a plan view of a clamp unit and a loading mechanism according to the present invention.

FIG. 4 is a side view of a clamp unit and a loading mechanism according to the present invention.

FIG. 5 is a side view of the loading mechanism according to the present invention.

FIG. 6 is a side view of the main part of the loading mechanism according to the present invention.

FIG. 7 is a plan view of a mini disc holder according to the present invention.

FIG. 8 is a first operation explanatory view of the loading mechanism according to the present invention.

FIG. 9 is a second operation explanatory view of the loading mechanism according to the present invention.

FIG. 10 is a third operation explanatory view of the loading mechanism according to the present invention.

FIG. 11 is a fourth operation explanatory view of the loading mechanism according to the present invention.

FIG. 12 is a fifth operation explanatory view of the loading mechanism according to the present invention.

FIG. 13 is an explanatory diagram of a conventional loading mechanism for a single mini disc.

[Explanation of symbols]

1 Mini-disc / Compact disc dual-purpose disc player (combined media player) 5 Chassis (floating chassis) 7 Compact disc insertion port 7a Mini-disc insertion port 19,22 Turntable 50 Loading mechanism 53 Drive unit 57 First roller 74 2 roller 40 Clamp unit 43 Clamper 90 Mini disc holder 92 Shutter opening / closing unit C Compact disc M Mini disc cartridge

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-275048 (JP, A) JP-A-8-63850 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G11B 17/04 413 G11B 25/04 101 G11B 33/02 501

Claims (2)

(57) [Claims] 1. A first medium and a second medium, which are at least two types of media, are selectively inserted into one housing to read information recorded on the first or second medium. In the dual-purpose media player, the first medium accommodates a disc having a first diameter in a cartridge and is slidable for exposing the disc on the right side in the insertion direction of the cartridge with respect to the housing. The second medium is not housed in a cartridge, has a second diameter larger than the first diameter, and has a second medium insertion opening and the second medium. And a media insertion opening in which the center position of the insertion opening of the first medium is displaced to the left of the center position of the insertion opening of the second medium. Panel, a first rotating unit that rotates the disk of the first medium, a second rotating unit that rotates the second medium, the first rotating unit, and the second rotating unit. A dual-purpose media player, characterized in that the dual-purpose media player is configured to include the first and second media dual-purpose pickups movably arranged between the two. 2. The medium insertion opening is formed as an integral opening by connecting the insertion opening of the first medium and the insertion opening of the second medium. The dual-purpose media player described.