JPS5975461A - Disk mounting device - Google Patents

Abstract

PURPOSE:To prevent a disk from being scratched when the disk is inserted into a disk mounting device by forming a triangular-shaped guide groove inserting and guiding the disk to have an arc-shaped form and holding the disk by means of an edge section having no relation with the characteristic of the disk. CONSTITUTION:The triangular-shaped guide groove 11, inserting and guiding the disk is formed in a disk holding member 9, which holds the disk 2, of a disk mounting device to have the arc-shaped form and the disk 2 is held by means of an edge section having no relation with the characteristic of the disk 2. Therefore, the disk is prevented from being scratched at the time of insertion and, at the same time, since more than half of the disk is held by the arc-shaped guide groove 11, the disk is reliably secured. Consequently, a device utilizing this constitution can be used suitably for a device on-vehicle accompanying vibration.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital audio disk, so-called DAD.
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, regarding a disc mounting device, particularly a disc mounting device configured to automatically suck a disc when it is inserted horizontally and mount it at a playing position.

(11 is the casing of the disc playing device, with the disc (
An insertion opening (3) into which the chassis (2) is inserted is formed.
4) A tisuf playing mechanism and a mounting mechanism are provided on the top. (5) is the guide shaft (6) with a value set on the chassis (4).
) (6) A moving body supported by and mounted so as to be able to move up and down,
As shown in FIG.
Guide shaft (61 (61V'C attached coil spring (7)
W force is applied upward by 7f7J to prevent wobbling. Reference numeral (8) denotes a sliding member that is movably mounted inside the movable body (5), and is slid within the movable body (5) by a drive mechanism that will be described later. t9) (91 is the pivot opening 1 of the sliding member (8)
1 fl (l K) This is a rotatable disk holding member, and the triangular guide shaft is formed in an arc shape. , is formed so as to be engaged with the disk (2) by a distance a from the center of the disk (2). Also, a spring housing 3 is installed between the disk holding part ladle (9HeJ),
Although each disk holding member (9 bar 91fr: energized in the counterclockwise t1 direction and clockwise direction), the disk 1 holding member (93
The bent piece t+ of (9), (l (131 is the sliding member (8)
Rotation is regulated by coming into contact with. And, at the rear end of the disc holding member +9) (9), a downwardly protruding control a + i + par (141) is formed.
The tip is formed into a tapered shape, and the tip is tapered.
It is positioned so as to be engaged with the provided opening ff3. The movable body (5) is configured to correspond to the insertion slot (3) of the disk (2) in the upper position.
) is inserted into the disc holding member (9) (91) through the insertion slot f3J, the movable body (5) is moved downward to the performance position by the mechanism described later. [161 is the movable body (5) A lid body that closes the insertion port (3) protruding upward from the top, closes the insertion port (3) by moving the movable body (5) downward.

ση is a driving member that drives the movable body (5) and the sliding member (8), and the chassis shaft 1
The rack gear frame, which is housed and slidably mounted and is formed on the negative side, is configured to be slid by being driven by a binion gear t211 to which the driving force of the motor is transmitted through a deceleration mechanism (not shown). has been done. And the drive member (17
) is bent downward on the upper and side surfaces (24).
Cam grooves 12311241 each having a different shape are formed.

The cam prisoner) has an English l1l protruding from the side of the moving body (5).
ltI is fitted. Also, the lower end of bending plate 4 VC#i
A roller member is provided that contacts the lower surface of the V palm (4), and the driving member surface slides! This makes the zero operation smooth and restricts the upward movement of the drive member aD. ■ is Shah V
It is an L-shaped rotating lever that is rotatably attached to the shaft, and the protrusion 4 provided at one end engages with the cam groove of the drive member (on the drive member), and the other end C = engages the activation lever C311 with the pivot group provided. is rotatably placed thereon, and furthermore, there is placed a starting switch which is closed by rotation of the starting lever Gυ and drives a motor (not shown). The activation lever C311 has a long hole formed at one end, and a sliding member (
8) is engaged with the drive 1III (b) installed in
Although the fixed spring C is energized counterclockwise,
Rotation of the rotary lever 1271 is restricted by a group of upwardly bent pieces. The length of the first drive shaft (b) is set to a length that maintains the engaged state with the elongated hole (0) of the starting lever C31 when the movable body (5) is moved to the lower performance position. .

The sixth cause is that when the motor (G8 in the ``nausea circuit diagram'' that separates the 371cD drive) that drives the cloth making mechanism Tk is closed by the power switch, the DC voltage ((7) that drives the motor ((7)) is transferred from the rectifier circuit 391. 10B) is output and is composed of 5.

t4f) is the first
．． When the second limit switch (41) (42) is closed,
A flip-flop that is set and reset outputs (Q (Q is AND
The motor control circuit FIlr (4!1
9 is supplied.

This motor control i11 circuit (49 is an AND gate (43
The transistors are in a bridge configuration so that the output of 1 [4] switches the direction of rotation of motor (3η), and by switching the direction of the edict current of motor C37), the direction of rotation of motor +37) is controlled. ing. (46) is a start switch using the start lever 3υ (when the three are closed,
Moving body (5 pieces) Set when closing the moving body control switch (4) for arbitrarily moving up and down and when the switch (48) linked with the power switch (to) is shut off, that is, when the power switch (to) is shut off. and the 1st and 29th Mitsutoshi switches 0υt
A flip-flop configured to be reset when 421 is closed, a three-input OR gate (4 wings) is connected to the set terminal (St), and a start switch G21 is connected to the first input of the OR gate (4 gates). The mobile body control switch (47) is connected to the second human power source, and the switch (47) is connected to the third human power source (4 frames are connected to the inverter via the AND gate 6B,
The other input of the ND gate 61) is supplied with the output of the first limit switch (4υ).The 9th set terminal hvC is connected to the OR gate 621 to which the output of the first and second limit switch (4υ (43) is supplied). , OR gate (5
Five differentiating circuits for differentiating the rising output of No. 21 are connected. It is also supplied to the other input of the flip-flop (4 unit set output (Ql is an AND game) 143 (44). 541 is a relay control circuit that controls the relay contact 54 connected in parallel to the power switch. relay ci9
A first switching transistor (a second switching transistor 57 between the base bias circuit 5e and the ground) is provided to separate the excitation 1ila from the output of the inverter 60) and the output of the second limit switch (the output of the 4 The output of the AND gate is supplied manually.

Next, the operation of the present invention having the praying configuration will be explained.

First, when the power switch is closed, DC +4 voltage [10B] is generated from the rectifier circuit 61, and the first switching transistor (56) OJ is supplied with a 561 VC bias. The relay 159 is excited by the conduction and the relay contact G is closed. ◎This state f
At 1K, the moving body (5J is in the upper position, drive member 117) and sliding member f81 are in the state shown in FIG. 1, and when the first limit switch (41)' is closed, the blip frog (4α is When set, the disc (21 &
When inserted into the guide groove συaυ of the disc holding member (91+91) from the insertion slot (3), the disc holding member (9) (
91 is pushed outward from the disk (2) VC against the bias of spring 0, and when it is inserted more than the center, the disk holding member (91F'A is rotated inward by the bias of spring u4). When the disk (2) is further pressed in this state, the activation lever c3υ which is connected to the drive shaft via the drive shaft diagram is activated by the sliding of the sliding member (81). By being rotated clockwise against the force of the field, the flip-flop (46) is set by closing the start switch 13, and the set output (k to pA) is set.
ND gate (43 is opened. AND gate (431 output is generated and motor control circuit (49 is motor C'171)
drive counterclockwise. The rotation of the motor C371 is controlled by a binion gear c! through a reduction mechanism (not shown). D, and by simultaneously rotating the pinion gear (2υ) counterclockwise, the drive member [17] is slid rearward by the drive of the rack gear opening. (by sliding of drive member (17)), cam groove 0
31 inclined groove (23aJ and protrusion c of rotation lever Q''TI)
! 3, the rotation lever Q7) is simultaneously moved clockwise around the chassis axis (C), thereby causing the activation lever 3
D is also rotated clockwise, and the sliding member (8)? The disk (2) is sucked by sliding backward within the moving body (5). During this time, due to the movement of the force of the drive part assembly, the small cam groove Q formed in the bending plate Q) and the protruding shaft (251 of (24a), the movable body (51<) does not have the same effect at this time.The end of engagement between the sloped groove (25a) of the cam groove (C) and the protrusion H29 of the rotating lever eD In the disk (
2) is completely sucked, then the protrusion of the rotating lever G7) engages with the 12 fathom vertical groove (2sb) of the cam groove, and the protrusion 4 of the movable body (5) engages with the cam groove (241). slanted groove (24b
), the movable body (5) is moved downward to the performance position by the sliding movement of the drive member ση without any effect on the synchronized lever solenoid D. At this time, the disc holding member (
9) f9.1 supplement ■ Par '14) (L4CD Qi /
(-side is engaged with v'r-v+4)-opening roller 9, disc holding member +9) (9) is pressed to the left in the fifth factor, that is, the In FIG. 6, it is rotated outward against the bias of the spring 117J. Therefore, the disk holding member (91 [9)] is released from holding the disk, and the disk t21 is fitted and positioned on the rotation drive shaft (not shown). In this way, the installation of the disk (2) is completed, and the drive member (group) is generated to the rear, the flip-flop (461) is reset, and the A N D gate (4
4), the motor C111 is stopped.

・11. At the same time, the flip-flop (4α) is reset. Thus, the disk (2) is at the playing position VC.
After the disc (2) is installed, the disc (2) is driven to rotate by operating a play switch (not shown) and enters a playing state. During this time, the movable body (5) is held at the lower performance position, resulting in 1. The disk insertion slot (3) is provided with a lid body 16ii' that projects integrally with the movable body (5). : Closed lid prevents dust from entering.

Next, a case will be explained in which a disc is replaced after a performance is finished and a different disc is to be played. At this time, first, a stop switch (not shown) is operated to stop the rotation of the disk, and then a moving system release switch 0 is operated. As a result, the flip-flop f=I61 is set, so that f
When the +44) is opened and the output is supplied to the motor control circuit (44), the motor G0 is now rotated clockwise, and the engagement of the pinion gear and the rack gear mount drives the drive member 11. 71 is moved forward.

The movement of the driving member 117) causes a completely opposite operation to that described above, and after moving the moving body (5) upward, the sliding member (8) moves forward by rotating the rotating lever in the counterclockwise direction. By sliding, the disk (2) is ejected and becomes the state shown in FIG. At this time, the front l\ of the driving member σ''lj returns to the first position.
When the limit switch (411 is closed, an output is generated from the differentiating circuit and the flip-flop is reset) (AND game) (431 [44) is closed and the GTI is stopped. At the same time, the flip-flop (4 (I) is set. Thus, the disc (2) can be replaced, and once the disc (2) has been replaced, the playing state can be set in the same manner as described above.

Next, the operation to end the performance will be explained.

First, when the power switch CM is cut off to end the performance with the disc (2) installed in the playing position, the switch (A) that is linked to the power switch
By opening NI:1-) (51 and making the second switching transistor 67 conductive), the first switching transistor 6e becomes non-conductive and the relay (!i5
1 is demagnetized and the relay contact 65) is opened, so the power is cut off. At this time, since the moving body (5J) is at the bottom, the disk insertion slot (3) is closed by the mounting body (le).

Next, move the moving object (5) or the time power switch (
To)? When shut off, the drive member ση is positioned forward at this time:
By closing the first limit switch 0υ, the switch (AND gate 61 when the signal is cut off) is opened and the flip-flop (46) is set.
The output of the D gate 0.1 causes the motor control circuit (4) to rotate the motor Gn counterclockwise.Therefore, the movable body (5) is moved to the lower performance position in the same way as in the previous position.
The disk insertion port (3) is closed by the vaginal cry. When the movement of the movable body (5) is completed, the drive member αη turns on the second limit switch (4Z & when closed, the AND gate (G) is opened, and the second switching transistor 57) becomes conductive, and the relay t5 is activated as described above. !5) is demagnetized and the power is cut off by opening the relay contact field. That is, the power switch (
To) J51-Even if the power supply is cut off, the power supply is maintained until the moving body (5) moves downward, and the power supply is then cut off when the movement is completed.

Therefore, even when the power switch (to) is turned on for the next performance, the disc is located below the movable body (5) and the disc insertion slot (3) is closed, making it impossible to fully insert the disc (2). However, in this case, the mobile system sub switch 7
), the flip-flop 616) is set to open the AND gate 44) and the motor control subcircuit 0
5) rotates the motor +371 clockwise to move the movable body (5) upward in the same manner as described above. Then, the °C disk (-+++) entrance (3) opens and the disk (2) can be completely inserted.

As described above, in the disk mounting device R of the present invention, a triangular guide groove for guiding the insertion of the disk is formed in the disk holding member that holds the disk, and the edge portion that is not related to the characteristics of the disk is used to insert or guide the disk. Will holding the disc cause scratches when inserting the disc? At the same time, more than half of the disc (fr) is held by the arcuate groove, and it can be held securely, making it suitable for on-vehicle devices that are subject to vibrations.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a disc loading device of the present invention, and FIG.
The figure is a side view showing the main part of Fig. 1, Fig. 6 is a plan view showing an enlarged view of the main part of Fig. 1, and Fig. 4 is a front sectional view of Fig. 6.
FIG. 5 is a diagram showing the main part of FIG. 2, and FIG. 6 is an electric circuit diagram. (2)...disc, (5)...moving object, [8)...
...Sliding member, (9) (9)...Disk holding part assembly,
Uυ111... Guide groove, u7)... Drive member, 27
1...Rotating lever, Cl1)...Starting lever, Gη
···motor. Figure 5 8

Claims (1)

[Claims] (Inside the movable body that stores 11 discs horizontally and moves up and down between the disc insertion position and the performance position, a triangular guide mechanism is formed in an arc shape, with one end rotatably attached and for inserting and holding the disc. , two disc holding members connected to each other by a spring are provided, and when the disc is inserted into the guide groove, the two arcuate guide grooves are more than half of the disc.
A disk loading device configured to hold a disc.