JP2003263876A - Disk player for both minidisk and compact disk - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a minidisk and compact disk player small-sized. <P>SOLUTION: Such a disk insertion slot that the center position of an insertion slot 7a for a minidisk is displaced to the left side of the center position of an insertion slot 7 for a compact disk is formed on a front panel 3 of a housing 2. In a swivel frame 11, a minidisk rotation unit 12, a compact disk rotation unit 13, a minidisk and compact disk pickup 14, and a feed mechanism 15 which moves the pickup 14 are arranged. When the compact disk is inserted, the swivel frame 11 is horizontally swiveled by a rotating mechanism 30. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a disc player for both mini discs and compact discs.

[0002]

2. Description of the Related Art As a disc player for both mini discs and compact discs, for example, Japanese Patent Application Laid-Open No. 7-296.
Japanese Laid-Open Patent Publication No. 499 (Patent Document 1), "Mini-disc and compact disc player" is known.

The above-mentioned technique is as shown in FIG.
Base plate 1 which is the chassis of the disc player
6, the compact disc spindle assembly 10 is arranged in front of the bottom of the base plate 16 when the disc mounting side is the front face, and the mini disc spindle assembly 30 is arranged behind the compact disc spindle assembly 10. Assembly 1
A pickup device 14 is movably arranged between 0 and 30, and a feeding means 12 as a feeding mechanism for driving the pickup device 14 is provided, and a compact disc tray 20 is slid on a base plate 16 for carrying a compact disc therein. So that the minidisc tray 34 can be slidably placed in the compact disc tray 20 for loading the minidisc.
A part of the side wall of the compact disc tray 20 is opened to provide a mini disc cartridge insertion opening 51, and a part of the side wall of the mini disc tray 34 is opened to provide a mini disc cartridge insertion opening 50. is there.

That is, the rotating parts of the mini disk and the compact disk are vertically arranged on the chassis, respectively, and the 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. When using a compact disc,
A compact disc tray 20 is provided with a compact disc from the upper front side thereof, and the compact disc spindle assembly 10 is provided in front of the bottom of the base plate 16.
The disc is rotated by and the information recorded on the disc is read by the pickup device 14.

On the other hand, when using a mini disc, the compact disc tray 20 and the mini disc tray 3 are used.
From the side of 4, the mini disk cartridge insertion opening 5
The mini disk is mounted via the 0, 51, and the disk is rotated by the mini disk spindle assembly 30 provided at the bottom rear of the base plate 16 to pick up the pickup device 1.
In step 4, the information recorded on the disc is read.

The planar spacing of a dual-purpose disc player having a rotating portion dedicated to a mini disc and a compact disc as in the above technique will be described with reference to the following drawing.

[0007]

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

[0008]

FIGS. 6 (a) and 6 (b) are plan views when a conventional mini disk and compact disk are arranged, and FIG. 6 (a) shows an example of the plane arrangement of the above technique. , (B) show a planar arrangement in which (a) is improved.
(A) is a mini disc 100 and a compact disc 1
01 are arranged on the same plane. 100a
Is the center hole of the mini disc 100, 100b is the shutter of the mini disc 100, and 100c is the mini disc 100.
Of the compact disc, and 101a indicates the center hole of the compact disc. Housing 10 of minidisc 100
If the size of one piece of 0c is A, the clearance between the mini disc 100 and the compact disc 101 is B, and the outer diameter dimension of the compact disc 101 is C, the mini disc 1
00 and the compact disc 101 are arranged in a plane, the dimension D1 is A + B + C. Here, the dimension A and the dimension C are the dimensions determined by the respective standards (A
= 72 mm, C = 120 mm), for example, B dimension is 5 m
When set to m, the dimension D is (D = 72mm + 5mm + 1
20 mm) 197 mm is required.

By the way, in-vehicle mini-disc players, compact disc players, and the like cannot be installed in most console boxes in vehicles unless they comply with the DIN standard (former West German standard). For example, the "1DIN size" specified in the DIN standard is
Since the front panel size is 178 mm (width) × 53 mm (height), the above arrangement is beyond the “1DIN size”, and a disc player compatible with the DIN standard cannot be made. The inventors repeated research,
An attempt was made to arrange the mini disk 100 and the compact disk 101 shown in (b) by minimizing the size of the dual-purpose pickup 103 for both the mini disk and the compact disk.

(B) shows a mini disk 100 and a compact disk 101 arranged on the same plane.
Assuming that the mini disc 100 and the compact disc 101 are not used at the same time, the mini disc 1
00 and the compact disc 101, the pickup 103 arranged between the mini disc 100 and the compact disc 101 is miniaturized to the center hole 1 between the mini disc 100 and the compact disc 101.
00a and 101a are brought closer to each other and the distance L1 between the center holes shown in (a) is changed to the distance L2 between the center holes. If the overlapping size of the mini disk 100 and the compact disk 101 is E, the size D2 is A + C-E.
Becomes The dimension D1 (A + B + C) shown in (a) indicates that B + E has been shortened. As a result, D2 is 1
"1DIN size" although the size is around 80mm
Does not fit in.

[0011]

The inventors of the present invention have made further studies and have invented compact mini-discs with good spacing and disc players for both compact discs. Specifically, the present invention provides a disc player for both mini discs and compact discs having the following configurations.

(1) In a disc player for both mini discs and compact discs, in which a mini disc and a compact disc are selectively inserted into one housing to read information recorded on the mini disc or the compact disc, It has an insertion opening for the mini disk and an insertion opening for the compact disk, and has a disk insertion opening in which the central position of the insertion opening of the mini disk is displaced to the left of the central position of the insertion opening of the compact disc. A panel, a mini disk rotating unit for rotating the mini disk, a compact disk rotating unit for rotating the compact disk, and a movably arranged between the mini disk rotating unit and the compact disk rotating unit. Mini disc and compact Minidisk and combined disc player compact disc, characterized by being configured and a pick-up disk combined. (2) The mini disc according to the above (1), wherein the disc insertion opening is formed as an integrated opening by connecting the insertion opening of the mini disc and the insertion opening of the compact disc. A compact disc dual-purpose disc player.

[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 a perspective view showing the external appearance of a disc player for both mini discs and compact discs according to the present invention. A disc player 1 for both mini-discs and compact discs comprises a box-shaped casing 2 and this casing 2
Panel 3 mounted on the front surface of the housing 2, an upper cover 4 that covers the upper surface of the housing 2, a floating chassis 5 as a chassis floatingly mounted on the housing 2, and a mechanical unit rotatably mounted on the floating chassis 5. 10 and a rotation mechanism 30 for horizontally rotating the mechanical unit 10.
Consists of. The panel 3 is provided with a compact disc insertion slot 7 and a mini disc insertion slot 7a formed integrally with a part of the compact disc insertion slot 7. At this time, the central position Mo of the insertion opening 7a of the mini disk is formed by displacing to the left by δ from the central position Co of the insertion opening 7 of the compact disk. 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 view taken in the direction of arrow 2 in FIG. 1, and shows the plane of the disc player 1 for dual use of mini discs and compact discs with the upper cover 4 (see FIG. 1) removed. The mechanical unit 10 includes a substantially rectangular swivel frame 11
And a rotating unit 12 for mini discs provided on the revolving frame 11, and a rotating unit 12 for mini discs
Rotating unit 1 for compact discs provided facing the
3, a pickup 14 for both mini disc and compact disc movably arranged between the rotary units 12, 13, and a feed mechanism 15 for driving the pickup 14 for dual use.

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 31
By rotating the cam gear 33 through the gear group 32, and the second gear fitted in the cam groove 33b of the cam gear 33
The transmission lever 34 is rotated by the pin 34d, and the swivel frame 11 is horizontally swung by the first pin 34c of the transmission lever 34.

The operation of the disc player 1 for both mini discs and compact discs described above will be described below. 3 (a) and 3 (b) are views for explaining the first operation of the disc player for both mini discs and compact discs according to the present invention, showing the position of the mechanical unit 10 for reading information from the mini disc 40. FIG. It should be noted that (a) shows the plane of the player 1 for both mini-disc and compact disc, and (b) shows the front. The position of the mechanical unit 10 for reading the information of the mini disc 40 is also the position of the mechanical unit 10 in the initial state. When the mini disc 40 is inserted from the mini disc insertion opening 7a as shown by the arrow, a detection switch (not shown) is shown. It is detected that the disc is the mini disc 40 and the initial state is maintained. Since the position of the mini disk 40 in the lateral direction is regulated with respect to the panel 3 by the insertion opening 7a of the mini disk 40, the positions of the mini disk 40 and the turntable 19 in the lateral direction coincide with each other.

FIGS. 4 (a) and 4 (b) are views for explaining the second operation of the disc player for mini discs and compact discs according to the present invention, in which the position of the mechanical unit 10 for reading information from the compact disc 50 is shown. Show. It should be noted that (a) shows the plane of the player 1 for both mini-disc and compact disc, and (b) shows the front. When the compact disc 50 is inserted from the compact disc insertion opening 7 as indicated by the arrow, it is detected that it is the compact disc 50 by a detection switch (not shown),
The motor 31 is rotated to move the cam gear 33 through the gear group 32.
Rotates as shown by the arrow, and the cam groove 33 of this cam gear 33
The transmission lever 34 rotates as indicated by the arrow by the second pin 34d fitted to the first pin 3 of the transmission lever 34.
4c, the revolving frame 11 rotates about the supporting portion 5a of the floating chassis 5 as a fulcrum as shown by an arrow, and the reading position of the compact disc 50 is moved to approximately the center of the insertion slot 7 of the compact disc 50. Since the reading position of the compact disc 50 is aligned with the approximate center of the insertion slot 7 of the compact disc 50, the miniature disc player and compact disc disc player 1 can be downsized. The compact disc 50 is inserted into the insertion opening 7 to be centered on the turntable 22 by a centering mechanism (not shown).

FIG. 5 is a diagram for explaining the third action of the disc player for both mini discs and compact discs according to the present invention, in which the revolving frame 11 is rotated to a predetermined position in order to read information from the compact disc 50. 3 is a comparison of the spacing when the revolving frame 11 is not rotated. The positions of the turntable 22 and the compact disc 50 obtained by rotating the revolving frame 11 to a predetermined position are indicated by a two-dot chain line. Swivel frame 1
The turntable 22 when 1 is not rotated is shown by a broken line, and the position of the compact disc 50 when the revolving frame 11 is not rotated is shown by a solid line.

The position of the compact disc 50 when the revolving frame 11 is rotated to a predetermined position is substantially the center with respect to the insertion port 7 of the compact disc 50, whereas the compact disc when the revolving frame 11 is not rotated. Since the position of 50 is to the right in the drawing with respect to the insertion slot 7, it is located outside the combined disc player 1 for minidiscs and compact discs. That is,
By rotating the revolving frame 11 to a predetermined position as shown by an arrow, it is possible to reduce the size by the dimension F in the lateral direction of the panel 3. As a result, it is possible to embody a disc player compatible with the DIN standard, which is a mini disc and a compact disc for vehicles.

[0021]

As described in detail above, the disc player for both mini discs and compact discs of the present invention has a mini disc insertion port and a compact disc insertion port, and the center of the mini disc insertion port. Position
A panel with a disc insertion slot displaced to the left of the center position of the compact disc insertion slot, a mini disc rotation unit that rotates the mini disc, a compact disc rotation unit that rotates the compact disc, and a mini disc Since the mini disc and the pickup for both compact discs are movably arranged between the rotary unit and the compact disc rotary unit, the mini disc and compact disc dual-use disc player can be downsized.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a disc player for both mini discs and compact discs according to the present invention.

FIG. 2 is a view on arrow 2 of FIG.

FIG. 3 is a first operation explanatory view of a disc player for both mini discs and compact discs according to the present invention.

FIG. 4 is a second operation explanatory view of a disc player for both mini discs and compact discs according to the present invention.

FIG. 5 is a third operation explanatory view of a disc player for both mini discs and compact discs according to the present invention.

FIG. 6 is a plan view when a conventional mini disc and a compact disc are arranged.

[Explanation of symbols]

1 Mini-disc and compact disc dual-purpose disc player 5 Chassis (floating chassis) 7 Compact disc insertion slot 7a Mini disc insertion slot 11 Revolving frame 12 Mini disc rotation unit 13 Compact disc rotation unit 14 Mini disc and compact disc Dual-purpose pickup 15 Feed mechanism 30 Rotation mechanism 40 Mini disc 50 Compact disc

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shoji Morioka             3-12 Moriya-cho, Kanagawa-ku, Yokohama-shi, Kanagawa             Local Victor Company of Japan, Ltd. F-term (reference) 5D138 RA05 RA08 RA11 RA15 SA13                       SA15 TA42

Claims (2)

[Claims] 1. A disc player for both mini discs and compact discs, wherein a mini disc and a compact disc are selectively inserted into one housing to read information recorded on the mini disc or the compact disc. A panel having a mini-disc insertion opening and a compact disc insertion opening, and a disc insertion opening in which the center position of the mini-disc insertion opening is displaced to the left of the center position of the compact disc insertion opening A rotary unit for a mini disc that rotates the mini disc, a rotary unit for a compact disc that rotates the compact disc, and a rotatably arranged unit between the rotary unit for the mini disc and the rotary unit for the compact disc. Mini disc and compact disc A disc player for both mini discs and compact discs, characterized in that it is provided with a pickup that also serves as a disc. 2. The mini disk according to claim 1, wherein the disk insertion opening is formed as an integral opening by connecting the insertion opening of the mini disk and the insertion opening of the compact disk. And a dual-purpose compact disc player.