JPH01273261A - Disk player - Google Patents

Abstract

PURPOSE:To enable a different shaped disk to be converted into a prescribed shape so as to be set in the main body of the subject player by correcting the position of a disk inserted from a disk inserting hole in accordance with its shape in relation to a turntable by a position correcting means and drawing the disk based on an output of the position correcting means. CONSTITUTION:The disk inserting hole 2 is provided in the front surface of an outer frame 1 of the disk player, and the turntable 4 is disposed on an upper surface in a base chassis 3 fixed in the outer frame 1 and rotationally driven by a motor 5. The player is provided with a disk correcting mechanism 10 consisting of sliding members 14A and 14B, etc., having an engaging part 11 for engaging with an upper plate of the outer frame 1, a disk guiding part 12 and a toothed part 13 so as to be freely slidable in the lengthwise direction of the inserting hole 2. The disk which is corrected in its position by said mechanism 10 is drawn onto the table 4 by a roller 18 and a pinching member 19 and detected by a disk shape detecting means with its light emitting elements 49A and 49B and photodetecting elements 50A and 50B, and thus the disk is stably set into the outer frame 1 by this detecting result.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a disc playback device that can be used regardless of the shape of the disc.

(b) Conventional technology Conventionally, in-vehicle disc players have been developed, for example, in
As shown in Japanese Patent No. 156056, a disc inserted through a disc insertion slot is pulled in by rollers and placed on a turntable.

Incidentally, recently, in addition to the 12's disk, a disk called 83 disk has been released, and the outer circumferential diameter of these disks is 121 and Bes9, respectively, depending on the amount of information. Therefore, in the disc player with the above configuration, when playing an sPp and 83 disc with each part set only for the 123 disc, a donut-shaped adapter with an outer diameter of 123 is attached to this disc. And its shape f:
It was rarely necessary to make it equivalent to a 123 disk.

el Problem to be Solved by the Invention Thus, in a structure in which the disk itself is pulled in like the above-mentioned disk player, if the adapter comes off inside the player body, the adapter and disk cannot be removed without disassembling the player. The problem was that there was no.

Therefore, we investigated a retractable disc player that can play both discs without using an adapter.

B) Means for Solving the Problems The disc player of the present invention comprises an outer frame, a disc insertion slot provided in the outer frame, a turntable provided in the outer frame, and a disc inserted through the disc insertion slot. a correction means for correcting the position of the disc so that it has a predetermined positional relationship with respect to the turntable according to its shape; a transport means for pulling the disc whose position has been corrected by the correction means onto the turntable; and a control means for controlling the transfer means to vary the amount of disk retraction based on the output of the detection means.

(E) Function Since the present invention is unique as described above, it is possible to reproduce discs of different shapes without converting them into a predetermined shape.

(F) Embodiment First, the mechanism of the disc player of the present invention will be explained based on FIGS. 1 to 5. (υ is an outer frame with a disk insertion slot (2) formed on the front surface. (3) is the outer frame (1).
), and (4) is a turntable installed on the top surface of the base, and the motor (5) installed in the base (3)
) is driven to rotate. (6) The rear end is attached to the base (
A presser plate is pivotally supported on the upper surface of 31, and an arc-shaped protrusion (71) is provided at the center of the front part to hold the disc together with the turntable (4). An elevating rod (9) guided by the control board (2) is provided. ul is a disk correction mechanism disposed near the disk insertion slot (2), which slides in the longitudinal direction of the disk insertion slot (2). Engagement gu1) that engages with the upper plate of the outer frame (1) so as to be movable.A sliding member (14A) provided with a cylindrical guide portion [2 and teeth portions (13'i) for guiding the disk.
, (14B), a linkage gear aS that meshes with the teeth (13) of the respective sliding members, and a sliding Element(
14B) t- Consists of a coil spring (17) that biases inward. Note that the guide section 13. (The distance between the disks 121 is normally shortened from 81 by the bias of the coil spring αD, and is set so that it widens to both sides when the disk 81 or 121 is inserted from the disk insertion slot (2). Thus, this disk correction mechanism 01 includes each sliding member (1
Since the moving distances of disks 4A) and (14B) are equal, the centers of disks 81 and 121 can be corrected to be located on the center line of the turntable (4). A roller provided at the rear of the disc correction mechanism (1) holds the disc from the disc correction mechanism 001 together with a clamping member σ provided on the outer frame (1), and rotates the cod to move the cod backward. ■ is a rotating plate whose one end is pivotally supported on the side plate of the outer frame (1) and is biased clockwise in FIG. 2 by a coil spring ta, and the roller (ll'o is The shaft at one end is pivotally supported by this rotating plate (2z is a roller motor fixed to the rotating plate (2), and the drive gear fixed to the motor shaft is supported by the roller (1).
It is fixed to the shaft at one end of 81 and meshed with nine roller gear Q/υ. The fixed plate is a control plate disposed on the side of the base 13) opposite to the rotating plate (3), and has a length that engages with a guide pin fixed to the side plate of the base (3). hole-,-,
A guide hole {circle around (2)} extending obliquely to the front upper part and through which the shaft of the other end of the roller is inserted, and a notch W12 formed at the upper end and guiding the lifting rod (9) of the presser plate (6)! There is a J. Note that both ends of the guide hole (2) are made deeper so that the shaft of the roller (α&) can rotate stably. The control plate slides in the front and back direction within the range of the elongated hole (■) while being guided by the guide bin (2), and by sliding forward, the roller (I81) When the rotary plate opening is moved downward (counterclockwise in Fig. 2) against the biasing force of the coil spring C! - move it downward.■, CI1+ is the first one operated by sliding the control plate 4 in the front and back direction
The second switch ω is fixed to the shaft of the roller aFj and the next drive gear, and the second switch ω is the first link plate (
an intermediate gear that engages with the drive gear (to) and meshes with the drive gear (to); a transmission gear that is linked to the shaft of the intermediate gear through a second link plate ω and meshes with the intermediate gear;
(Support) is a transmission gear fixed to the shaft of the transmission gear.

(has a flat part (58A) and toothed part (58B) on the top surface,
And the first one with long holes 18C) and (38C) formed in the side part.
- Using a rack gear, engage the elongated holes (38C) and (58C) with the guide pins +39i and e91 fixed to the control plate, and slide in the front and rear direction within the range of the elongated holes (38C) and (58C). Then, the feed gear (2) is placed on the flat portion (68A) so that it can mesh with the tooth portion (38B). The throat is a plunger that is fixed to the control plate and forcibly slides the first rack gear in the front and back direction. 1 is a stopper pin (41A) that is inserted into the sliding hole-1 core (the sliding hole in the base (3) is not shown) formed in the holding plate (6) and the upper plate of the base (3); (41A) and a connecting plate (41B) that connects the upper part of the stopper pin and slides on the presser plate (6).
21 disc and 81 disc on the turntable (
4). The station is the base 1
3) A second member having teeth on one side that is slidably provided on the lower surface of the upper plate and that is inserted through the stopper pins (41A) and interlocks with the stop member &41). The rack gear (-) is rotatably supported on the upper plate of the base 13), and the feed gear (-) meshes with the teeth of the second rack gear (-).
g) is a motor to which a pinion gear (2) that meshes with the feed gear is fixed. G! and - are the sixth and fourth holes arranged along the sliding holes □□□ on the upper surface of the holding plate (6).
The switch connects the stop member ff1 (41B).
) is operated by the end. In addition, the sixth switch 0η is
The position where the 8cm disc is stopped, 4th switch v
il is associated with the position where the 12c'm disc is stopped. (49A) and (49B) are the first and second light emitting elements provided on the upper plate of the base (3);
) and (50B) are the first light emitting elements (49A) and (49B) provided on the upper plate of the outer frame (1) corresponding to the respective light emitting elements (49A) and (49B).
, when the second light receiving element receives light from the light emitting elements (49A) and (49B), it turns on. In addition, this light emitting element (49
A), (49B) and light receiving element (50A), (50B)
is arranged at a position as shown in FIG. 5 with respect to the turntable (4). In other words, the light emitting elements (49 people) and the light receiving elements (50A) are 81 disks (2) and 12 r
s disk [F]), the optical path is blocked and the
It is arranged at a position where the optical path is not blocked when the scratched disk comes into contact with the stopper pin (41A) (41A).

When the 121 disk ■ is inserted, the light path of the light emitting element (49B) and the light receiving element (50B) is blocked and the light receiving element (50B) is
21 disk (41A) 2>E stopper bin (41A
) is placed in a position where the optical path will not be interrupted when it comes into contact with the lens.

FIG. 6 shows a circuit block diagram, in which (5N) to 1 are the driving circuits for the plunger engagement and the motor, 2 is the eject key, and music is the eject key and the first to fourth switches. (Sword, 3DI49 Neji and light receiving element (50A
), (50B) based on the outputs of the respective drive circuits (50B).
1) A control circuit consisting of a microcomputer that controls .

FIG. 7(a) Φ) is a flowchart showing the program of the control circuit, and the operation will be explained below based on this.

In addition, in the initial state, the first switch C3G'iON, the fifth switch
Turn on the switch and de-energize the plunger.

First, when the 81 disc is inserted into the disc insertion slot (2), the center of the 81 disc is inserted into the turntable (4) by the disc correction mechanism t1) as described above.
is located on the center line [F] of Then, in this state, the roller αg is further inserted between the holding member C19, and the first
When the light receiving element (50A) is turned off, the control circuit
The roller motor Ω is rotated forward to draw the 83 disk backward (steps S-1 and 2). When this disk comes into contact with the stopper pins (41A) and (41A) and the first light receiving element (50A) is turned on, the plunger I is excited and the first rack gear (381) is slid forward. (58B) is engaged with the feed gear Ca)1 (steps S-5 to S-5). As a result, the rotational force of the roller motor is transmitted to the first rack gear, and the control plate slides forward, moving the roller (18) downward along the guide hole (2). , and the roller (by the downward movement of 181, the intermediate gear a moves upward so as to keep the distance between the axes of the drive gear (2) and the transmission gear (to) constant) and is located in the elevating rod 191t? The holding plate (6) is moved downward.Then, when the second switch CID is turned on due to the forward movement of the control unit, the roller motor is stopped (steps S-6 and 7). In this state, the disc is placed on the turntable (4) apart from the roller (18) and is held between the clampers (81). When the stopper pin (
41A) and (41A). Thereafter, the playback operation is started using a known playback device.

During playback operation, when the eject key Q is operated, the roller motor 2 is reversely rotated and the control plate is moved backward via the first rack gear 131c, thereby moving the roller U upward along the guide hole. At the same time, the lifting rod (9) is removed from the inside of the notch and the holding plate (61) is moved upward (Steps S-8 and 9).Then, by moving the control plate backward, the first switch is activated. When ω turns ON, the excitation of the plunger chrysanthemum is stopped, the first rack gear ball is moved rearward, and the meshing between the tooth portion (58B) and the gear (support) for feeding is released (steps S-8 and 9). ). In this state, the disk is released from the clamping by the clamper (8), is pushed up by the roller ti&, and is clamped by this roller side and the clamping member σj. Therefore,
Rotate the disc on the roller side and insert it into the disc insertion slot (2
1, and the first light receiving element (5QA) 2>
When the state changes from EOFF to ONK, the roller motor is stopped and the process returns to step S-1 (step 8-12.1).
5). Incidentally, the user has to pull out the disk that has protruded from the disk insertion slot (2).

Next, when a 121 disc is inserted from the disc insertion slot (2), the center of the 121 disc is placed on the turntable (
4) is located on the center line of Then, in this state, insert it between (7j, Ra ■ and clamping member σ), and
1 light receiving element (50A) - 1) EONVCfl and the control circuit rotate the roller motor forward and
3. Pull the disk backward (steps S-1 and 2).

Next, when the second light receiving element (50B) is turned OFF, the pinion gear motor is rotated in the forward direction to move the stop member (41) backward through the second rack gear, and when the fourth switch decoy is turned ON. Pinion gear motor■
(Steps S-5, 14 to 16). In addition, during the time from when the second light receiving element (50B) is turned off until the center of the disc is located on the turntable (4), the stop member l moves from the third switch to the fourth switch. It is set so that the travel time is faster. Then, the disc is attached to the stopper pin (41A),
('41A) and the second light receiving element (50B) turns ON.
When this happens, the process similar to steps S-4 to S-7 described above is performed and a transition is made to the playback operation (step S-1).
7-20).

Also, if the eject key a is operated during the reproduction operation, the same processing as in steps 8-8 to 15 described above will be performed. However, for the 121 disc, when the disc is ejected, the second light receiving element (50B) changes from OFF to OFF.
When it changes to N, the roller mm motor w2 is stopped, and then the pinion gear motor is reversely rotated to move the stop member I41) backward via the second rack gear, and the fifth switch @D is turned on. Then, stop the pinion gear motor (steps 5-21 to 29).
.

(G) Effects of the Invention Since the present invention is constructed as described above, in a type of disc player that pulls in a disc inserted through a disc insertion slot, it is possible to convert discs of different shapes into a predetermined shape, and to No need to use a shea dabter,
It is possible to avoid the conventional situation where the adapter comes off inside the player body.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the disc player of the present invention with the upper plate of the outer frame removed, FIG. 2 is a side sectional view, and FIG.
4 is a perspective view of the main part of the disk correction mechanism, FIG. 5 is an explanatory diagram of the operation, FIG. 6 is a concave block diagram, and FIG. ), (b)
is also a flowchart of the program. (1) Outer frame, (2) Disk insertion slot, (4
)...Turntable, tlG...Disc correction mechanism, u81...Roller, 4.1)m roller motor, (Foundation)...Stop member, (To)...Pinion gear motor, ( 49A), (49B)... Light emitting element, (50A), (50B)... Light receiving element,
Toto: Control circuit applicant Sanyo Electric Co., Ltd. and one other person Patent attorney Takuji Nishino (one other person) Figure 1 Figure 2 Figure 4 Figure 5 Figure 7

Claims (1)

[Claims] (1) An outer frame, a disc insertion slot provided in the outer frame, a turntable provided in the outer frame, and a disc inserted through the disc insertion slot set in a predetermined position relative to the turntable according to its shape. a correction means for correcting the positional relationship so that the positional relationship is as follows; a transfer means for pulling the disc whose position has been corrected by the correction means onto the turntable; a shape detection means for detecting the shape of the disc; 1. A disc player comprising: control means for controlling the transport means to vary the amount of retraction of the disc.