JPH0896566A - Disk player - Google Patents

Abstract

PURPOSE: To simplify the constitution of a disk player and to obtain the miniaturization of the device by adjusting the angle of a counterspring and imparting a horizontal energizing force which sets off a horizontal component of the energizing force to the counterspring. CONSTITUTION: In a state laterally placing the disk player, a floating unit 108 is vertically hung on its left side by a left floating spring 194. Further, the floating unit 108 is hung on its right side in the state of being energized obliquely upwards by right front and rear floating springs 259, 260. In such a case, a projecting part 189 of a left floating arm 187 is restrained by a restraining part 191 in the zero degree position, and the floating arm 187 is in a posture of the zero degree position. A projecting part 196 of a right floating arm 188 is restrained by a restraining part 197 in the zero degree position, and the floating arm 188 is in a posture of the zero degree position. The counterspring 203 is in the horizontal state, because the floating arm 188 is in a posture of the zero degree position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted disc player capable of accommodating a plurality of mini-discs and successively selecting any of the mini-discs accommodated therein for continuous performance. Also, the present invention relates to a disc player that can take two postures of vertical placement.

[0002]

2. Description of the Related Art Conventionally, in a vehicle-mounted disc player, a player portion is hung by a spring to absorb vibration. Also, in the CD changer type, since the device itself is supposed to be installed on the dashboard, the installation angle of the device can be changed (horizontal installation → vertical installation, vertical installation → horizontal installation) Some suspension angles can be changed. For example, in JP-A-2-287993, a plurality of anti-vibration springs (floating springs) are provided on both side surfaces of a support frame and both side surfaces of an outer casing facing the support frame, respectively.
One end of these anti-vibration springs is rotatably supported by a support frame, and the end portion of the anti-vibration spring on the outer casing side is attached to a rotating member rotatably attached to the outer casing.
This rotating member can be rotated from the outside of the outer casing.

[0003]

However, in the above-mentioned conventional disc player, the outer casing-side ends of the plurality of anti-vibration springs are attached to the rotating member, and the rotating members are rotated from outside the outer casing. Since the suspension angle of the anti-vibration spring is changed by moving the vibration-proof spring, the structure becomes complicated and miniaturization of the device is hindered.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a disc player having a simple structure and a compact device. is there.

[0005]

In order to achieve the above-mentioned object, the present invention provides a floating spring in an oblique posture for suspending a floating unit on the left and right of a fixed side frame, the fixed side frame and the fixed side frame. A counter spring hung on the floating unit so that the angle can be adjusted, and a horizontal direction for canceling the horizontal component of the biasing force of the floating spring by adjusting the angle of the counter spring when the apparatus body is placed horizontally or vertically. And an angle adjusting means for applying the urging force to the counter spring.

[0006]

With this configuration, when the apparatus is placed horizontally or vertically, the angle adjusting means adjusts the angle of the counter spring to bring the counter spring into a horizontal state to suspend the floating unit. Unnecessary horizontal component of the biasing force of the floating spring in an oblique posture is offset by the biasing force of the counter spring.

As described above, it is unnecessary to suspend the floating unit by adjusting the angles of the counter springs different from the floating springs without changing the postures of the floating springs.
Compared to a conventional disc player that changes the posture of multiple floating springs in order to offset the horizontal component of the biasing force of the floating spring in an oblique posture,
The structure is simplified and the device can be downsized.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a partially omitted perspective view of a disc player according to the present invention, FIG. 2 is an exploded perspective view of the same disc player, and FIG. 3 is an exploded perspective view of a magazine with a part omitted. In the drawings, the M-1 direction is front, the U-1 direction is rear, the L-1 direction is left, and the R-1 direction is right. The trace topper 24 is not shown in FIG.

The disc player is composed of a magazine 1, a base unit 2, an elevating unit 3, and a loading unit 4. The magazine 1 is
As shown in FIGS. 3 to 9, a box-shaped case 5 is provided, and the case 5 has a rear surface and a lower surface opened,
It has a front surface portion 5a, left and right surface portions 5b and 5c, and an upper surface portion 5e, and a lid 5f is fixed to the lower surface by screwing. Further, the left surface portion 5b is formed with a recessed portion 6 extending in the vertical direction.

On the inner surfaces of the left and right surface portions 5b and 5c, a plurality of guide grooves 6L and 6R along the front-rear direction are formed at predetermined intervals in the vertical direction (nine), and the recessed portion 6 is formed. The same number of slits 7 as the guide grooves 6L are formed. In addition, a concave portion 8 is formed on the inner surface of the front surface portion 5a so as to be closer to the left side and extends in the vertical direction.
On the inner surface of a, the contact portions 9L and 9R are provided on the left and right in the vertical direction.
Is formed, and the guide groove 6L, 6R is formed in the contact portion 9L.
The locking groove 10 is formed at the same level as. A guide groove 11 is formed along the front-rear direction below the outer surface of the left and right surface portions 5b and 5c of the case 5. The upper surface portion 5
The stopper receiving portion 11a is located on the left side on the inner surface of e.
Is formed.

On the left side of the front surface portion 5a, a plurality (10) of disk holder springs 12 for locking the disks (mini disks) MD are attached at a predetermined interval in the vertical direction. Engaging projections 12a are formed on these disk holder springs 12.

On the outer surface (lower surface) of the lid 5f, left and right guide ridges 13L and 13R along the front-rear direction and guide grooves 14 along the front-rear direction are formed, and the lid 5f is formed.
A notch 15 is formed at the center of the rear edge of the rear edge, an engaging recess 16 is provided at the center of the notch 15, and the notch 1
Locking groove portions 31 are formed on the outer surface (lower surface) on the left side of 5, respectively. The locking groove portions 31 have a cam portion 31a and a locking portion 31b. A push button hole 30 is formed on the left side of the lid 5f.

A plurality of (9) trays 17 are inserted into the case 5 so that they can be taken in and out, and a plurality of disk storage areas FS for storing the disks MD are partitioned by these trays 17. . That is, the tray 1
7 is a guide portion 18 on the left and right edges as shown in FIG.
L and 18R are provided, and a hook portion 17a and a locking portion 17b are formed on the left side of the front edge portion of the tray 17.
A long hole 20 is formed on the left side of the tray 17 in the front-rear direction, and the rear portion of the long hole 20 has a large-diameter hole portion 19 larger than the front portion. A stopper piece 21 is formed in the center of the tray 17 toward the front, and a protrusion 22 is formed on the upper end of the stopper piece 21. A pushing portion 23 is formed on the left side of the tray 17.

The tray 17 constructed as described above is inserted into the case 5 by slidably inserting the left and right guide portions 18L and 18R into the guide grooves 6L and 6R. The hook portion 17a of the tray 17 is inserted into the concave portion 8, the locking portion 17b is locked in the locking groove 10 so as to be disengageable, and the pushing portion 23 of the tray 17 penetrates the slit 7. In addition, the pushing portion 23 is exposed in the concave portion 6.

When a plurality of trays 17 are inserted in the case 5 as described above, the elongated holes 20 of each tray 17 are aligned vertically. Then, a trace topper 24 penetrates through these elongated holes 20. That is, in the trace topper 24, as shown in FIG. 9, a rod-shaped stopper body 25 is formed with a plurality of alternating large diameter portions 25a and small diameter portions 25b, and a spring seat portion 26 is formed in the lower portion of the stopper body 25. The lower end portion of the stopper body 25 is a push button portion 27, and a movable spring seat body 28 is movably provided above the spring seat portion 26 of the stopper body 25. An elastic spring 29 is provided between the spring seat portion 26 and the spring seat portion 26.

Then, the trace topper 24 is inserted into the large-diameter hole portion 19 of the elongated hole 18 which is vertically aligned, and the upper end portion of the stopper body 25 is inserted into the stopper receiving portion 11a. The seat 28 is in contact with the lower surface of the lowermost tray 17, and when the lid 5f is attached to the lower surface of the case 5, the spring seat portion 26 is in contact with the lid 5f and the push button portion 27 is provided. Is exposed from the push button hole 30 provided in the lid 5f.

The base unit 2 has a base plate 7
2 and a magazine base 33, and the magazine base 33 is fixed to the front part of the base plate 72,
A front gate type top plate 73 is fixed to the magazine base 33. Two columns 34 and 35 connected to the magazine base 33 and the upper portion 73a of the top plate 73 are arranged on the front surface of the base unit 2, and the columns 34 and 35 connect the inside of the top plate 73. Are the magazine openings a, c, b in the left and right and in the center
Is defined. Further, flange-shaped guides 36 and 37 are formed on the lower portions of the columns 34 and 35.

The magazine base 33 is provided with guides 38, 39, 40 and 41 formed by cut and raised pieces positioned behind the columns 34 and 35, and the left side surface portion 73L of the top plate 73 is provided. The space between the guide 38 and the guide 38 is the left magazine accommodating portion A, the space between the guide 39 and the guide 40 is the central magazine accommodating portion B, the guide 41 and the top plate. The space between the right side surface 73R of 73 is the right magazine housing C, the magazine housing a is in the left magazine housing A, the magazine housing b is in the center magazine housing B, and the magazine housing is The mouths c respectively face the right magazine accommodating portion C.

A magazine guide mechanism 42 is provided on the bottom surfaces of the magazine accommodating portions A, C and B (upper surface of the magazine base 33) which constitute the magazine holder 500 at the left and right sides.
A magazine lock mechanism 43, a lock release mechanism 44, and a magazine ejection mechanism 45 are provided, respectively.

The magazine guide mechanism 42 of the left magazine accommodating section A is provided with a plurality of guide pins 46 provided at a predetermined distance in the front-rear direction at the center of the bottom surface of the magazine accommodating section A toward the right. Guide 36 at the bottom of the column 34
And the guide 38 and the left side surface portion 73L of the top plate 73. The magazine guide mechanism 42 of the central magazine accommodating section B is provided with a plurality of guide pins 46 provided at a predetermined distance in the front-rear direction on the right side of the center of the bottom surface of the magazine accommodating section B. It is composed of guides 36 and 37 and the guides 39 and 40.

Further, the magazine guide mechanism 42 of the right magazine accommodating section C is provided with a plurality of guide pins 46 provided at a predetermined distance in the front-rear direction at the center of the bottom surface of the magazine accommodating section C toward the right. A guide 37 at the bottom of the column 35,
The guide 41 and the right side surface portion 73 of the top plate 73
It is composed of R and. The upper and lower portions 73a of the top plate 73, which are the ceilings of the left and right and central magazine accommodating portions A, C, and B, have front and rear magazine pressing rollers 4
An upper pressing mechanism 74, in which 7, 48 are rotatably held by a leaf spring 49, is provided.

The magazine lock mechanism 43 is provided in each of the magazine accommodating portions A, C and B at the left and right and in the center. The magazine lock mechanism 43 includes a lock plate 50 that moves in the left-right direction.
The right part of is a long hole 5 formed in this right part and long in the left-right direction.
2, a pin member 54 provided on the magazine base 33 is slidably inserted and held. A locking pin member 56 is attached to the left side of the lock plate 50, and the locking pin member 56 is mounted on the magazine base 3
3 penetrates through a long hole 57 formed in the left side of the rear portion of the rear portion 3 and extends in the left-right direction, and protrudes above the magazine base 33, that is, into the magazine accommodating portions A, B, and C. The lock plate 50 is urged to the right by a spring 75. Front and rear cam hole portions 61C and 61 are formed in the lock plate 50 (see FIG. 13).

The lock releasing mechanism 44 is provided in each of the magazine accommodating portions A, C and B on the left and right sides and the center. As shown in FIG. 12, the left and center unlocking mechanisms 44
A and 44B are pin members 77 attached to the magazine base 33.
A trigger plate 58A, 58B is rotatably supported by the central portion of A, 77B, and an interference part 58A at the rear end of the trigger plate 58A, 58B.
As shown in FIG. 21, the interference portion 58Ba penetrates through slits 59A, 59B formed in the rear edge portion of the magazine base 33 along the left-right direction and projects rearward, and the trigger plates 58A, 58B. The pin member 7
7A and 77B to position the cams 60A and 60 at the rear.
B is provided and the cams 60A and 60B are inserted into the rear cam hole 61 formed on the left side of the lock plate 50. In addition, the trigger plates 58A, 5
8B is urged by springs 76A and 76B hooked on spring locking portions 58Ab and 58Bb at its front end so that the interference portions 58Aa and 58Ba are located on the rear side of the device.

The right lock releasing mechanism 44C has the same structure as the left and center lock releasing mechanisms 44A and 44B, but the interference portion 58 at the rear end portion of the trigger plate 58C.
Ca penetrates the slit 59C formed in the rear edge of the magazine base 33 along the left-right direction and projects rearward, and the trigger plate 58C is provided with a cam 60C positioned at the front by a pin member 77C. The cam 60C is inserted into the front cam hole 61C formed on the left side of the lock plate 50. The trigger plate 58C has a spring locking portion 58 at the front end thereof.
It is urged forward by a spring 76C hooked on Cb.

As described above, in the left and center unlocking mechanisms 44A, 44B, the trigger plates 58A, 58 are included.
B cams 60A and 60B are inserted into the rear cam hole portion 61 of the lock plate 50, and in the right lock release mechanism 44C, the cam 60C of the trigger plate 58C is
Since it is inserted into the front cam hole 61C of the lock plate 50, when the magazine 1 is unlocked, the trigger plates 58A and 58B are tilted to the left as shown by the phantom line in FIG. 12, and the trigger plate 58C is shown in FIG. 12 is inclined to the right as shown by a virtual line.

Further, as shown in FIG. 21, a slit 5 formed in the rear edge of the magazine base 33 along the left-right direction.
9A, 59B, 59C, central and right slit 59
B and 59C are in the same horizontal position, and the left slit 59A
Is higher than the central slit 59B. This is because the first and second actuating pieces 115, 1 of the loading unit 4 that interfere with the interference portions 58Aa, 58Ba, 58Ca.
This is because 16 are different.

Further, the magazine ejection mechanism 45 is provided with front and rear elongated holes 6 formed in the magazine base 33 along the front and rear direction.
2, 63 are provided with a rack member 66 held by sliding holding pins 64, 65, and the rack member 66 is always biased forward by a spring 67. The rack member 66 engages with the rack 66a of a gear 69 on the rotation side of a damper 68 fixed to the back surface of the magazine base 33.

The elevating unit 3 slides left and right on the base plate 72 to select one magazine 1 in the magazine accommodating portions A, B and C, and also to vertically move the loading unit 4 therein. The target disc MD is selected. That is, the elevating unit 3 includes a slide mechanism 71 that moves the loading unit 4 in the left-right direction, and an elevating mechanism 84 that moves the loading unit 4 in the up-down direction.

As shown in FIG. 22, the slide mechanism 71 has a slide base 53 and a slide drive mechanism 71a for moving the slide base 53 to the left and right. Moving pin 5
3a, 53b, 53c are inserted into the left and right slide holes 74a, 74b, 75 of the base plate 72 along the left-right direction.

The slide drive mechanism 71a includes a rack member 76 fixed to the upper surface of the base plate 72 along the left-right direction, and a traveling motor 78 fixed to a mounting portion 77 on the lower front side of the slide base 53. , A gear mechanism 79 attached to the front side of the slide base 53 and rotated by the drive of the traveling motor 78. The gear mechanism 79 includes a worm 80 fixed to an output shaft 78a of the traveling motor 78 and a worm 80. , This warm 8
Worm gear 81 meshing with 0 and this worm gear 81
And a rack gear 83 linked to each other via a gear train 82. The rack gear 83 meshes with the rack 76a of the rack member 76.

Further, the slide base 53 has an optical sensor 310 for position detection and a switch 311 for position detection.
Are attached respectively. This optical sensor 310 is
As shown in FIG. 26, a slit 72 a is formed in the base plate 72 by moving together with the elevating unit 3.
27, and the switch 311 detects the cam 312 formed on the rack member 76 as shown in FIG. 27 and sets the initial position.

The slide base 53 is provided with an elevating mechanism 84 for vertically moving the loading unit 4. The elevating mechanism 84 includes a case 70 as shown in FIGS. 19 and 20, and the case 70 has a box shape with an open front surface. Then, guide holes 84L and 84R are formed along the up-down direction in the central portions of the left and right side surfaces 70L and 70R of the case 70. The case 70 is provided on the left and right case mounting portions 53 of the slide base 53.
It is attached to d.

The elevating mechanism 84 includes the case 7
The outer cam plates 86L, 87L, 86R, 87R and the outer cam plates 87L, 87R are rotatably attached to the support shaft 85 at the center of the left and right side surfaces 70L, 70R of 0 for synchronous rotation. Synchronous rotation drive mechanism 1
And the rotary cam mechanism 600. As shown in FIG. 31, a hole-shaped cam 88 is formed on the left and right inner cam plates 86L, 86L, and this hole-shaped cam 88 is provided with respect to a straight line C in the radial direction passing through the center of rotation (support shaft 85). It is axisymmetric and has a straight cam portion 89, a curved cam portion 90, a constricted cam portion 91, and a bulging cam portion 92 formed from the outside to the inside.

Further, a spring piece portion 93 extending in the counterclockwise direction from the position b of 50 degrees in the clockwise direction with respect to the straight line c in FIG. 31 is cut out at the peripheral portion of the left inner cam plate 86L. There is a projection 95 protruding outward at the tip of the spring piece 93. In addition, the spring piece portion 9 on the peripheral portion of the inner cam plates 86L and 86R.
A portion located on the side opposite to 3 is a cutout portion 97, and a pair of meshing teeth portions 98 are formed in the cutout portion 97 at a predetermined interval.

The outer cam plates 87L and 87R are
As shown in FIGS. 32 and 33, a disk-shaped plate body 87
a, and the peripheral portion of the plate body 87a has a gear 100
The inner surface of the plate body 87a is provided with a guide cam 101 which is axisymmetric with respect to a straight line e in the radial direction passing through the center of rotation of the plate body 87a. This guide cam 101
Is one groove-shaped cam portion 102 and the other groove-shaped cam portion 10
32, and when the plate main body 87a is set to the position of the straight line E at 0 degree in FIG. 32, one groove-shaped cam portion 102 reaches approximately 90 degrees in the counterclockwise direction from the straight line E, and the other side. The grooved cam portion 103 of the straight cam extends approximately 90 degrees in the clockwise direction.
02 crosses 0 degrees above. A connecting portion 99 is formed in the center of the plate body 87a, which is an elliptical recess for connecting the grooved cam portions 102 and 103. Further, as shown in FIG. 32, the recesses 104 and 10 are formed in the peripheral portion of the plate body 87a at positions of 58 degrees in the clockwise direction and the counterclockwise direction from the 0 degree position.
5 is formed.

As shown in FIG. 79, the guide cam 101 corresponds to the disc storage area FS of 10 stages in the magazine 1. Then, one groove-shaped cam portion 102
Of the other end of the groove-shaped cam portion 103 as the first step, the upper and lower shafts 300L of the chassis unit 107, which will be described later, when the groove-shaped cam portions 102, 103 rotate. The positions of 300R, 301L, and 301R are divided into the first step to the tenth step (circled numbers in FIG. 34), and these positions are detected by the slide base 72.
The optical sensor 321 fixed on the upper surface of the
This is performed by detecting the rotation of the detection disk 320 provided in the.

23 to 25, the synchronous rotation drive mechanism 105 includes a synchronous shaft 106 rotatably supported on the left and right sides of the case mounting portion 53d of the slide base 53. , To the left of this sync axis 106,
Gears 107A and 108A are fixed to the right end portion. The left gear 107A is the gear 100 around the outer cam plate 87L, and the right gear 108A is the gear 100 around the outer cam plate 87R. It is in mesh. In addition, the drive motor 1 is installed in the case mounting portion 110.
The output shaft 111a of the drive motor 111 is fixed to the synchronous shaft 1 via a reduction gear mechanism 112.
It is linked to 06.

The loading unit 4 comprises a chassis unit 107 and a floating unit 108. The chassis unit 107 includes a power train 110 including a loading motor 109, switches 300 and 301, and a primary unit as shown in FIG. It has a loading mechanism 111 and a mechanical lock mechanism 144. As shown in FIG. 36, the chassis unit 107 includes a chassis main body 114 that is a fixed-side frame. The chassis main body 114 includes an upper surface portion 114a and
The left and right side surfaces 114b and 114c and the left and right side surfaces 11
Motor bracket 17 fixedly held to 4b and 114c
It is composed of 7 and 7. Then, the left and right side surfaces 114
Upper and lower guide shafts 300L, 300R, 301L, 301R are attached above and below the central portion of b, 114c.

A first actuating piece 115 is located below the front surface of the chassis unit 107, and a second actuating piece 115 is located at the front end of the left side surface of the chassis unit 107 at a level higher than that of the first actuating piece 115. The respective operating pieces 116 are provided. The first actuating piece 115 has a central and right slit 59 formed at the rear edge of the magazine base 33.
The interference portions 58Ba and 58Ca protruding from B and 59C
The second actuating piece 116 interferes with the interference portion 58Aa protruding from the left slit 59A.

The primary loading mechanism 111 is provided on the left side of the chassis body 114. As shown in FIG. 38, the primary loading mechanism 111 includes a movable plate 115 and a control plate 127.
And a clamper 128. The movable plate 115 has an upper surface 114a of the chassis body 114.
Guide holes 116, 1 formed in the left side of the
It is attached to 17 by sliding pins 118 and 119 and moves back and forth. A rack 120 is formed on the left side of the movable plate 115.
The gear 121 of the power train 110 meshes with 0.

The movable plate 115 has arcuate guide holes 122, 123, a fulcrum hole 124, and a cam hole 125 formed on the front and right sides of the movable plate 115, and a guide hole 126 formed on the rear side along the front-rear direction. There is. The control plate 127 is rotatably attached to the guide hole 126 of the movable plate 115 by a sliding pin 129 at the rear portion thereof so as to be movable in the front-rear direction and has a cam follower 130 substantially at the center thereof. The cam follower 130 is fixed and is inserted into the cam hole 125 of the movable plate 115. Further, the control plate 127 is provided with a cam portion 131 at a front portion thereof and a spring locking portion 132 at a rear portion thereof.

The clamper 128 has a fulcrum pin 133 (sliding pin 11) in the fulcrum hole 124 of the movable plate 115.
9) is rotatably attached, and the clamper 128 is provided with a cam follower 139.
The cam follower 139 is inserted into the cam hole 123 of the movable plate 115.
39 is a cam portion 131 of the control plate 127.
Will be interfered by. In addition, the clamper 128
Is provided with a hook portion 140 at the front portion thereof and a spring locking portion 141 at the rear portion thereof.
And the spring locking portion 132 of the control plate 127
A spring 143 is stretched between and. Further, a plate engaging portion 141a is formed at the end of the spring engaging portion 141 of the clamper 128.

Further, the mechanical lock mechanism 144
As shown in FIGS. 42, 43 and 49, includes an operating plate 146, an operating plate releasing mechanism 157, left and right lock plates 145L and 145R, and a timing plate 401. As shown in FIG. 44, the operating plate 146 is provided with a plate body 146a. The plate body 146a has guide holes 147, 148, a rack 149, and a spring engaging portion 150 along the front-rear direction.
And a cam plate portion 151 that is perpendicular to the surface portion of the plate body 146a is formed at the rear portion of the plate body 146a, and the cam plate portion 151 has a hole-shaped cam 152. Is formed. An interference pin 157Z is attached to the back side of the cam plate 151, and the interference pin 157Z is slidably inserted into a guide hole 158 formed on the left side of the upper surface 114a of the chassis body 114 along the front-rear direction. I am doing it.

A holding pin (not shown) provided on the left side surface 114L of the chassis body 114 is inserted into the guide hole 148, and the operating plate 146 is provided with a holding pin provided at a rear portion of the operating plate 146. 154
A guide hole (not shown) provided in the left side surface portion 114L
It is slidably inserted into and attached to the left side surface portion 114L of the chassis body 114 so as to be movable in the front-rear direction. The gear 156 of the power train 110 is meshed with the rack 149.

The operating plate releasing mechanism 157 is shown in FIG.
5. As shown in FIG. 49, on the left side of the upper surface 114a of the chassis body 114, there is provided a lock plate 160 whose front end is swingably attached by a fulcrum pin 159, and the lock plate 160 is provided on the front side ( The width of the lock plate becomes wider toward the rear end).
Sloped portions 160a are formed on both side edge portions of 60. On the left side of the upper surface 114a of the chassis body 114, a lever link 161 is swingably attached by a fulcrum pin 161a so as to face the front side of the lock plate 160, and the lever link 161 projects forward. An arm portion 162 is formed, and an end portion of the arm portion 162 is formed with a long hole 163, and a pin 164 provided at the front portion of the lock plate 160 is inserted into the long hole 163.

As shown in FIG. 48, the left lock plate 145L has front and rear guide holes 165 and 166, and holding pins 167 and 1 provided on the left side surface of the chassis body 114.
68 is slidably inserted and is provided on the left side surface of the chassis body 114 so as to be movable in the front-rear direction. The lock plate 145L has front and rear lock claws 169, 1
70 is formed, and these lock claw portions 169, 17 are formed.
Reference numeral 0 indicates a protrusion into the chassis main body 114, and lock portions 169a and 17 of the lock claw portions 169 and 170 are provided.
0a is facing backwards. In addition, the lock plate 1
A rack 171 is formed in the middle portion of 45L. Further, a stepped hole 155 is provided at the rear of the lock plate 145L.
Is formed. In addition, the timing plate 401 is provided at the rear of the left side surface 114b of the chassis body 114.
Is attached so as to be rotatable in the vertical direction, and the pin 402 provided on the timing plate 401 is attached to the stepped hole 1
It is inserted in 55.

As shown in FIG. 46, the right lock plate 145R has sliding pins 172 and 173 at the front and rear thereof and a lock pawl 174 at the center, and an arm at the front. It has 176. The lock plate 145R is slidably inserted into front and rear sliding pins 172 and 173 into a guide hole (not shown) formed in the right side surface portion of the chassis body 114, and is moved forward and backward in the right side surface portion. The lock claw portion 1 is movably attached.
The numeral 74 projects into the chassis body 114. The lock portion 174a of the lock claw portion 174 faces forward.

Then, inside the motor bracket 177 attached to the lower surface side of the chassis body 114 (upper surface), as shown in FIG. 42, a linking member 179 is swingable by a fulcrum pin 178 at its central portion. The linking member 179 is attached and provided with a connecting pin 180 at the left end of the linking member 179. The connecting pin 180 is provided in the hole 1 of the lock claw 169 on the front side of the left lock plate 145L.
The right end portion of the linking member 179 is linked to the arm portion 176 of the right lock plate 145R by the pin 182. Then, the spring locking portion 150 provided on the operation plate 146 and the left lock plate 145.
The spring locking portion 184 provided on the L and the spring 185
Has been passed over.

The chassis body 114 is shown in FIG.
A floating direction switching mechanism 186 is provided as shown in FIG. The floating direction switching mechanism 186 includes left and right floating arms 187 and 188. The left floating arm 187 is swingably attached to the inside of the left side portion of the motor bracket 177 by a fulcrum pin 190. 1
A semicircular protrusion 189 is formed on the lower left side of the 77, and the protrusion 189 has a locking portion 191 at the 0 degree position.
And a locking portion 192 at a 90 degree position is formed at a position that is 90 degrees out of phase with the locking portion 191, and a locking projection 193 at the lower end of the floating arm 187 is engaged with this locking portion 191. It is detachably locked. Further, one end of a floating spring 194 is locked to the upper end of the floating arm 187.

The right floating arm 188 is swingably attached to the inside of the right side surface 114c of the chassis body 114 by a fulcrum pin 195, and has a semicircular projection formed on the right side surface 114c of the chassis body 114. At 196, a locking portion 197 at a 0-degree position and a locking portion 198 at a 90-degree position are formed at positions 90 degrees out of phase with the locking portion 197, and a floating arm 188 is attached to the locking portion 197. The lower end of the locking projection 199 is locked in a disengageable manner. In addition, a long hole 200 is formed on the floating arm 188.
A guide hole 201 is formed obliquely on the right side surface portion 114c of the chassis body 114, and a sliding pin 202 is slidably provided in the guide hole 201. The sliding pin 202 is provided on the floating arm 188. Long hole 200
, One end of the counter spring 203 is locked to the sliding pin 202, and these constitute the angle adjusting means.

The upper surface of the chassis body 114 is shown in FIG.
As shown in FIG. 9, switches 300 and 301 with one circuit and two contacts
And the upper surface portion 1 of the chassis body 114.
14a, a reset plate 302 and a switch plate 303 are provided so as to be movable in the left-right direction, and the reset plate 302 and the switch plate 303 are connected by a spring 304.
3 is biased to the switch 300 side, the end of the switch plate 303 is in contact with the movable piece 300a of the switch 300, and the reset plate 302 is the switch 30.
It is urged to the side opposite to the 1 side, and the reset plate 3
The end of 02 is in contact with the movable piece 301a of the switch 301.

A two-step cam portion 303 is provided on the edge of the reset plate 302 opposite to the switch contact side.
a is formed, and the two-step cam portion 303a is in contact with the sliding contact pin 119 of the operation plate 146. Also,
A bent portion 306 is formed on the edge of the switch plate 303 on the side opposite to the switch contact side, and the bent portion 306 is in contact with the interference portion 305 provided on the left lock plate 145L.

The switches 300 and 301 are shown in FIG.
As shown in FIG. 1, it has the first connection terminal T1, the second connection terminal T2, and the common terminal com, and the movable pieces 300a and 301a.
Is pressed to the position a, the first connection terminal T1 and the common terminal com are short-circuited (first short-circuit), and the movable piece 300
The second connection terminal T2 and the common terminal com are short-circuited (second short-circuit) by pushing a and 301a to the position b.

As shown in FIG. 63, the floating unit 108 comprises a suspension chassis 210, a drive unit 204, a holder arm 205, a holder 206, and a secondary loading mechanism 209 including an eject arm 207 and an eject link 208. There is.

As shown in FIG. 63, the drive unit 204 is provided with a turntable 211 located in the center of the suspension chassis 210 and mounted on the suspension chassis 210, and the suspension chassis 210 has a turntable 211 side. The punching part 2
21 is formed, and an optical pickup 222 is provided inside the punched-out portion 221, and the optical pickup 222 is moved in the radial direction of the disc MD by a screw feeding mechanism (not shown). A drive unit (not shown) for the turntable 211 and the optical pickup 222 is attached to the suspension chassis 210.

One support pin 212 is provided on the left side of the suspension chassis 210 and two front and rear support pins 213, 21 are provided on the right side of the suspension chassis 210.
4 are attached respectively. In addition, a locked portion 21 is provided on the left and right sides of the suspension chassis 210.
5, 216, and a locked portion 217 is provided on the right side of the suspension chassis 210. A left side spring engaging portion 218 is provided substantially in the center of the left side portion of the suspension chassis 210, and right side spring engaging portions 219, 220, 256 are provided at the front, rear, and center of the right side portion of the suspension chassis 210, respectively. . Further, a guide portion 223 extending in the vertical direction is provided substantially at the center of the left side portion of the suspension chassis 210, and a guide portion 224 extending in the vertical direction is provided at the substantially central portion of the right side portion of the suspension chassis 210.

A holder arm mounting portion 225 is provided on the rear side of the suspension chassis 210, and the holder arm mounting portion 225 has the holder arm 20 attached thereto.
5 is attached to the rear portion by a pin 226 so as to be vertically rotatable. And this holder arm 2
A left arm portion 227 protruding forward is provided on the left side of 05, a roller 228 is pivotally supported on the left arm portion 227, and a spring locking portion 229 is provided on the left arm portion 227. .

The holder 206 is held by the holder arm 205, and the holder 206 is located on the upper surface of the suspension chassis 210.
As shown in FIGS. 68 to 71, the holder 206 has a disc insertion port 230 on its front surface, and a guide hole 231 extending in the front-rear direction is formed on the right side of the disc insertion port 230. Further, a claw 132 for releasing the shutter of the disc MD is provided on the inner wall of the holder 206. Further, the outer edge portion of the guide hole portion 231 has a straight portion 242a and an escape portion 24 which extends outward from the front portion thereof.
2b and a guide portion 242. In addition, guide pins 233 are provided on the left and right sides of the holder 206.
234 is provided.

A spring 236 is stretched over the spring locking portion 229 of the left arm portion 227 of the holder arm 205 and the spring locking portion 235 provided on the left side portion of the suspension chassis 210. By the force, the guide pins 233 and 234 cause the guide portions 223 of the suspension chassis 210,
224 (see FIGS. 66 and 67).

The secondary loading mechanism 209 is shown in FIG.
2 to 78, the eject arm 207 and the eject link 208 are included, and the eject arm 207 and the eject link 208 include the fulcrum pin 23.
It is rotatably provided on the rear left side of the upper surface of the holder 206 by means of 7. A clamper 238 is attached to the right end of the eject arm 207 by a fulcrum pin 239 so as to be rotatable in the left and right directions.
Is constantly urged in the clockwise direction by a spring (not shown), and has a slide portion 240 and a guide pin 241 as shown in FIGS. 75 to 78. The slide portion 240 has the holder 206. Right side 206a
The guide pin 241 is in sliding contact with the holder 20.
6 is in sliding contact with the guide portion 242 of the right side portion 206a.
A stopper 243 is provided on the right side of the upper surface of the holder 206 so as to come into contact with the eject arm 207 when the clamper 238 comes to the frontmost position.
Further, the eject arm 207 has a spring locking portion 245 and a stopper 246 at the base thereof.

The eject link 208 has spring engaging portions 247 and 248 at its right end portion and a cam pin 249 at its left end portion, and the spring engaging portion 247 and the spring engaging portion of the eject arm 207 are provided. A spring 250 is stretched around 245 and the spring engaging portion 248.
And a spring locking portion 2 formed on the upper surface of the holder 206.
An eject link spring 252 is bridged over 51.

As shown in FIGS. 50 to 55, the floating unit 108 configured as described above has the support pins 212, 213, and 214 on the left and right of the floating unit 108 on the left and right sides of the chassis body 114 of the chassis unit 107. Dampers 253, 25 provided on the surface portions 114b, 114c
4, the suspension arm 210 is attached to the chassis unit 107, and the floating arm 1 is attached to the spring engagement portion 218 on the left side of the suspension chassis 210.
The other end of the floating spring 194 locked to 87 is locked.

Further, as shown in FIG. 55, the central spring engaging portion 256 on the right side of the suspension chassis 210.
The other end of the counter pulling 203 locked to the floating arm 188 is locked to the right side of the suspension chassis 210, and right and left right spring locking parts 219 and 220 on the right and left sides of the suspension chassis 210 and the chassis unit 1.
The floating spring 2 is attached to the front and rear spring locking portions 257 and 258 provided on the upper surface of the chassis body 114 of No. 07.
59 and 260 are laid over. The floating springs 259 and 260 are inclined rearward as shown in FIG. 54, and bias the floating unit 108 diagonally upward. Further, the floating spring 194 on the left has the protrusion 189 of the floating arm 187 locked by the locking portion 191 at the 0-degree position, and the floating arm 187 is at the 0-degree position. Has become. In addition, the protrusion 1 of the floating arm 188
Since the 96 is locked by the locking portion 197 at the 0 degree position and the floating arm 188 is in the posture at the 0 degree position, the counter pulling 203 is in a horizontal state as shown in FIG. Further, the roller 228 provided on the left arm portion 227 of the holder arm 205 is mounted on the roller receiving portion 261 formed on the operation plate 146, and the cam pin 249 of the eject link 208 is provided.
Is inserted in the hole-shaped cam 152 formed in the operation plate 146.

The left and right guide shafts 300 of the chassis unit 107 of the loading unit 4 are
L, 300R, 301L, and 301R are inserted into guide holes 84L and 84R formed in the left and right side surfaces 70L and 70R of the case 70 of the lifting unit 3, and the left guide shafts 300L and 301L are left inside. It penetrates through the hole cam 88 of the cam plate 86L and is inserted in the guide cam 101 of the left outer cam plate 87L, and the right guide shafts 300R and 301R penetrate the hole cam 88 of the right inner cam plate 86R. And is inserted in the guide cam 101 of the right outer cam plate 87R.

Next, the operation of the disc player configured as described above will be described. Each tray 1 of the magazine 1
The disk MD is accommodated in the disk 7.
Is held by engaging the engaging projection 12a of the disc holder spring 12 with a hole for preventing erroneous erasure or a predetermined hole. Further, the projection 22 of the stopper piece 21 of the tray 17 is locked in the turntable hole of the disc MD to prevent the disc MD from falling off at the time of impact. Further, the elastic force of the protrusion 22 presses the disc MD in the MD cartridge against the inner wall of the cartridge,
Rattling between the disc MD and the cartridge is prevented.

The stock pitch of the disc MD is 7 each.
Since it is as narrow as mm, it is predicted that the target disk MD cannot be quickly replaced. Therefore, in this embodiment, the disc MD is pushed out together with the tray 17 to facilitate the exchange.

To replace the disc MD, the trace topper 24 is pushed against the spring 29 to move the trace topper 24 in the axial direction.
The small diameter portion 25b is located in the large diameter hole portion 19 of the tray 17 where the large diameter portion 25a of the trace topper 24 was located.
Then, the pushing portion 23 of the tray 17 protruding to the outside from the slit 7 of the case 5 is pulled out by hooking it with a finger, and the tray 17 is pulled out, and the end portion is pushed by the hanging portion 17a of the tray 17 so that the disc MD is pulled out. Be done.
In this case, the small diameter portion 25 a of the trace topper 24 enters the rear portion of the long hole 20 from the large diameter hole portion 19 of the long hole 20.

The magazine 1 in which the disc MD is stored in each tray 17 as described above is detachably mounted in the magazine storage portions A, C and B in the left and right and the center of the base unit 2. That is, in the left magazine accommodating portion A, the magazine 1 is inserted into the magazine accommodating opening a, and the guide groove 1 formed in the lid 5f of the magazine 1
4, the guide pin 46 of the magazine guide mechanism 42 is inserted, and the guide 36 of the column 34 is inserted into the guide groove 11 on the right side of the magazine 1. When the magazine 1 is pushed in this state, the slide pin 65 of the magazine discharging mechanism 45 engages with the notch 15 formed at the rear edge of the lid 5f of the magazine 1, and the rack member 66 is attached to the magazine 1. With the movement, it moves against the spring 67.

Near the end point of pushing in this magazine 1,
Locking groove 31 formed on the lid 5f of the magazine 1
The locking pin member 56 of the magazine lock mechanism 43
Is inserted, the locking pin member 56 is guided by the cam surface 31a of the locking groove portion 31 and moves leftward to be inserted and locked in the locking portion 31a of the locking groove portion 31. in this case,
As shown in FIG. 17, the lock plate 50 moves against the spring 57 by the movement of the locking pin member 56, and the trigger plate 58 of the locking release mechanism 44 is rotated leftward.

When the magazine 1 is accommodated in the right magazine accommodating portion C, the guide 37 of the support column 35 is inserted into the guide groove 11 on the left side of the magazine 1 and the magazine 1 is accommodated in the central magazine accommodating portion B. When storing, the guides 3 of the columns 34 and 35 are placed in the guide grooves 11 on the left and right side portions of the magazine 1.
6, 37 will be inserted.

Further, since the magazine 1 is a cube, if there is an action point of the pushing force on the lower surface (lid 5f) side of the magazine 1, the magazine 1 will fall backward around the action point. Although a rotation moment is generated, since the guide 36 (37) of the support column 34 (35) is inserted into the guide groove 11 of the magazine 1 as described above, it is possible to suppress the fall due to this rotation moment.

"Magazine 1 Selection Operation (Left and Right Sliding Operation)" The traveling motor 7 of the slide drive mechanism 71a.
By driving 8 the rack gear 83 is rotated via the gear mechanism 79, and the rack member 76 of the rack gear 83 rolls on the rack 76a to move the elevating mechanism 84 (elevating unit 3) in the left-right direction.

The position detecting optical sensor 310 moves together with the elevating unit 3 to move to the base plate 72.
The slits 72a formed in 1 are read to select and eject the magazines 1 located in the magazine accommodating portions A, C, and B.
The position detection switch 311 moves together with the slide base 53 to detect the cam 312 formed on the rack member 76 and set the initial position. In the embodiment, the center (magazine storage B
Position) to the initial position (standby),
It uses a two-contact switch.

"Magazine 1 Selection Operation (Up / Down Operation)" By driving the drive motor 111 of the synchronous rotation drive mechanism 105 of the elevating unit 3, the synchronous shaft 106 is rotated through the reduction gear mechanism 112, and the synchronous shaft 106 is rotated. The left and right outer cam plates 8 via the left and right gears 107A and 108A
7L and 87R are synchronously rotated.

When the loading unit 4 that holds the elevating mechanism 84 so that it can move up and down is at the uppermost position (a state in which the uppermost disk of the magazine is stored in the 10th step), the upper guide shafts 300L, 3L of the loading unit 4 are connected.
00R is the left and right outer cam plates 87L, 86R via one of the straight cam portions 89 of the inner cam plates 86L, 86R.
One groove-shaped cam portion 102 of the L, 87R guide cam 101
The guide shaft 301 under the loading unit 4 is inserted into the guide shaft 301 and is regulated by the cam portion 102.
L and 301R are left and right inner cam plates 86L and 86R
The left and right outer cam plates 8 via the bulging cam portions 92 of
It is inserted in the connecting part 99 of 7L and 87R (Fig. 34).
(See (1)).

In this state, the left and right outer cam plates 87
When L and 87R are rotated clockwise (clockwise direction) in FIG. 34, the loading unit 4 is lowered by the upper guide shafts 300L and 300R which are regulated by the grooved cam portion 102. At this time, the lower guide shafts 301L and 301R are free from the restriction of the grooved cam portion 102. Then, the loading unit 4 continues to descend, passes through the position of the seventh step as shown in FIG. 34 (2), and reaches the upper and lower sides from the sixth step to the fifth step shown in FIG. 34 (3). Guide shafts 300L, 300
R, 301L, 301R are two grooved cam portions 102, 1
03, the lower guide shafts 301L and 301R are regulated by the grooved cam portion 103 and reach the upper guide shafts 300L and 300R.
Will be free. Then, the left and right outer cam plates 87
By rotating the L and 87R to the right, the state becomes the bottom (first stage selection) shown in FIG. 34 (5).

By the way, the outer cam plates 87L, 87R
Since the guide cam 101 has a position where the groove-shaped cam portions 102 and 103 intersect with each other, the guide shafts 300L, 300R, 301L and 301R will not fit in the target groove-shaped cam portions 102 and 103 unless some restrictions are imposed. Absent. That is, taking the case where the loading unit 4 descends as an example, the upper guide shafts 300L and 300R are shown in FIG.
As shown in FIG. 34 (2), the guide shafts 300L and 300R are moved to the groove cam portion 103 side (from the position of ♦ of the groove cam portion 102).
Position), that is, the grooved cam portion 10
It is necessary to regulate it so that it will move to the second place.

As described above, the outer cam plates 87L, 8
When the loading unit 4 starts descending from the position of the 10th step by 7R, the rotational force is also applied to the inner cam plates 86L and 86R.
Since the guide shafts 300L and 300R are engaged with the linear cam portion 89 of one of the hole-shaped cams 88 formed in the L and 86R, they cannot rotate.

The loading unit 4 continues to descend,
After the step position, the guide shafts 300L, 30
Since 0R reaches the inside of the one bent cam portion 90, the inner cam plates 86L and 86R are rotatable. The inner cam plates 86L and 86R are in contact with the outer cam plates 87L and 87R with a predetermined elastic force by their spring side portions 93, and thereafter, the inner cam plates 86L and 86R rotate as the outer cam plates 87L and 87R rotate. Is also urged in the same direction. As a result, the gears 107A and 108A mesh with one of the pair of meshing teeth 98, and the inner cam plates 86L and 86R rotate in synchronization with the outer cam plates 87L and 87R only during the meshing.

During this synchronous rotation, the upper guide shafts 300L and 300R move toward the inner cam plates 86L and
The curved cam portion 90 on one side of 86R and the area a (FIG. 32) of the outer cam plates 87L and 87R pass through.

After this passage, the gears 107A, 108A and one of the meshing teeth 98 are disengaged from each other, and the gear 107
A and 108A are located between a pair of meshing tooth portions 98.
Further, since the upper guide shafts 300L and 300R move to the ends of the constricted cam portions 91, only the outer cam plates 87L and 87R continue to rotate thereafter, and the inner cam plates 86L and 86R are prohibited from rotating (FIG. 34).
(2)).

At this time, the guide shafts 300L, 30
0R is located at the intersection of the grooved cam portion 103 and the grooved cam portion 102, but the shafts 300L and 300R are guided by the constricted cam portion 91 and do not move to the grooved cam portion 103 side, and the groove is left as it is. The cam portion 102 is advanced (see FIG. 34).
(3)).

As the guide shafts 300L, 300R rotate, the upper guide shafts 300L, 300R
Moves from the constricted cam portion 91 to the bulging cam portion 92, and the shafts 300L and 300R move to the outer cam plates 87L and
It becomes possible to rotate in the same direction as 87R, but this time, the lower guide shafts 301L, 301R move from the bulging cam portion 92 to the constricted cam portion 91 side, which still restricts the rotation of the inner cam plates 86L, 86R. It is still done.

At this time, the upper guide shaft 300
L and 300R try to come out from the grooved cam portion 102 toward the connecting portion 99 side, but the lower guide shaft 301L,
301R enters the grooved cam portion 103 side from the communication portion 99 (FIG. 34 (3)). Accordingly, the lifting control of the loading unit 4 is performed by the upper guide shaft 300L,
Guide shafts 301L and 301R below 300R
It will be handed over to and will be continued.

When the outer cam plates 87L and 87R further rotate, the lower guide shafts 301L and 301R move from the constricted cam portion 91 to the curved cam portion 90, as shown in FIG. 34 (4). As a result, the inner cam plates 86L and 86R are urged in the same direction by the rotational force of the outer cam plates 87L and 87R, as described above with reference to FIG. 2B, which causes the gears 107A and 108A to mesh with each other. The inner cam plates 86L, 86R rotate in synchronization with the outer cam plates 87L, 87R only during the meshing with the other of the teeth 98. During this synchronous rotation, the upper guide shafts 300L and 300R are
The other bent cam portion 9 of the inner cam plates 86L and 86R
0 and the inside of the regions a (FIG. 32) of the outer cam plates 87L and 87R (FIG. 34 (4)).

After this passage, the gears 107A and 108A and the other meshing tooth portion 98 are disengaged from each other. Further, since the lower guide shafts 301L and 301R move to the end portions of the linear cam portion 89, thereafter, the outer cam plates 87L and 87L,
Only 87R continues to rotate and inner cam plates 86L, 8
6R rotation is prohibited.

At this time, the guide shafts 301L, 30
1R is located at the intersection of the grooved cam portion 103 and the grooved cam portion 102, but the shafts 301L and 301R are guided by the linear cam portion 89 and do not move to the grooved cam portion 103 side, and the groove is left as it is. Proceed on the side of the cam portion 102.

Thus, the lowering control of the loading unit 4 can be finally performed.

When the loading unit 4 is raised, the left and right outer cam plates 87L, 87R are rotated counterclockwise (counterclockwise direction), which is the reverse of the above-described case of lowering. The outer cam plates 87L, 87
The guide cam 101 of R is connected to the gears 107A and 108 at the end of the synchronous shaft.
It is determined that the rotation of A can shift the loading unit one step.

When an object (controlled object) is moved up and down by using the rotating cam as shown in FIG. 32, the operation stroke is the maximum stroke of the radius of the rotating cam. As described above, the cam groove is crossed (that is, the grooved cam portion 102 and the grooved cam portion 103 are crossed), and the control member (the inner cam plate 86L , 86R)
Since the control object is provided, the operation stroke of the controlled object can exceed the radius of the rotating cam.

Further, in the above-described embodiment, the connecting portion 99 is provided in the middle portion of the two intersecting cam grooves (the groove-shaped cam portion 102 and the groove-shaped cam portion 103), and the connecting portion 99 is used to form the respective cam grooves. Pin supported by (upper guide shaft 300
L, 300R and lower guide shafts 301L, 301
Although R) is switched (changed), the connecting portion 99 is not provided and a closed curve is formed using a single cam groove.
The controlled object may be controlled by only a single pin.

As described above, the upper guide shafts 300L and 300R, and the lower guide shaft 301.
When L and 301R reach the curved cam portion 90, the regulation on each guide shaft is removed, and at this time (synchronization start timing), the inner cam plate 86L,
86R is rotated as the outer cam plates 87L and 87R are rotated, and as a result, the meshing tooth portion 98 is moved to the gear 107.
A and 108A are meshed with each other, but in order to reliably perform this meshing (that is, the rotating operation of the inner cam plates 86L and 86R at the time when the regulation for each guide shaft is removed), as shown in FIG. One piece 93
Of the outer cam plates 87L, 87R, and the projections 95 are provided on the end portions of the surfaces on the outer cam plates 87L, 87R side, and the projections are formed on the surfaces of the outer cam plates 87L, 87R facing the projections 95 of the inner cam plates 86L, 86R at the synchronization start timing. It is preferable to form recesses 104 and 105 (FIG. 32) that can be engaged with 95.

In this way, the inner cam plates 86L, 86
At the synchronization start timing of R, the projection 95 and the recess 10
4 or 105 are engaged with each other, so that the inner cam plates 86L and 86R become the outer cam plates 87L and 87R.
It is possible to reliably rotate in synchronism with the rotating operation of.

[Primary Loading Operation of Loading Unit 4] When the loading unit 4 comes to a predetermined disc taking-out position of the magazine 1 by the operation of the slide driving mechanism 71 and the elevating mechanism 84, it is provided in the chassis unit 107. The primary loading mechanism 111 operates to pull out the disc MD from the magazine 1 by a predetermined amount. That is, the power train 110
When the motor 109 is driven, the gear 156 rotates, and the movable plate 115 that meshes with the gear 156 in the rack 120 advances and the clamper 128 advances, as shown in FIGS. The hook 140 of 128 causes the disk M to move by the elastic force of the spring 143.
It engages with one concave portion D ′ formed on the side surface of D and grips it.

In this state, the motor 109 of the power train 110 is reversely rotated to retract the movable plate 115 and retract the clamper 128. The retracting of the clamper 128 causes an interference portion (not shown) provided on the inner surface of the chassis body 114 of the chassis unit 107 to form the plate locking portion 1 of the clamper 128.
41a, this clamper 128 is spring 1
It rotates outwards against 43 and releases the grip of the disc MD. Further, due to the movement of the disc MD, the clamper 238 engages with the other concave portion of the disc MD to prepare for secondary loading. (State of FIG. 41 (1)).

At the same time as this operation, the clamper 128
The sliding pin 118 provided on the movable plate 115 interferes with the lever link 161 of the operation plate releasing mechanism 157 by the backward movement of the lever, and rotates the lever link 161 counterclockwise to move the lever link 161. The rotation causes the lock plate 160 to rotate clockwise,
The movement of the sliding pin 118 (movement of the movable plate 115) is regulated, while the locking of the interference pin 157Z (FIG. 44) of the operating plate 146 by the lock plate 160 is released.

[Secondary Loading Operation of Loading Unit 4] The unlocking of the interference pin 157 of the operating plate 146 causes the operating plate 146 to move forward due to the spring force, and the rack 149 of the operating plate 146 causes the rack 149 of the operating plate 146 to rotate. 156, and the driving plate 146 is driven by the driving of the power train 110.
Moves forward. For this reason, the eject arm 207 rotates counterclockwise in FIG. 74 via the eject link 208 in which the cam pin 249 is inserted into the hole-shaped cam 152 of the operation plate 146, and the clamper at the tip of the eject arm 207 is rotated. 238 retracts and draws the disk MD into the holder 206. Then, the disc MD is positioned on the turntable 210.

[Release of Floating Unit 108] When the operation plate 146 moves forward and the disc MD is conveyed onto the turntable 210, the rack 149 of the plate 146 and the gear 156 are disengaged from each other.
6 stops. Immediately before stopping, the plate 146 pushes the lock plate 145, which causes the plate 14
The rack 171 formed in No. 5 meshes with the gear 156. That is, when the transport of the disc MD is stopped and the operation plate 146 is stopped, the lock plate 145 starts moving forward.

The lock claws 169 and 170 of the lock plate 145L are attached to the floating unit 1
The locked parts 215, 216 provided on the suspension chassis 210 of No. 08 are released from the locked parts 215, 216 by the lock claws 169, 170. In this case, by moving the left lock plate 145L forward, the pin 40 is guided by the cam surface of the stepped hole 155.
2 is activated and the timing plate 401 is shown in FIG.
It rotates clockwise as shown in (1), (2), and (3).

At the same time, the left lock plate 145
By moving L to the front, the right lock plate 145R is moved rearward via the linking member 179, and the lock claw 174 provided on the lock plate 145R is attached to the suspension chassis 2 of the floating unit 108.
10 is separated from the locked portion 217 provided on the lock claw 17
4 unlocks the locked portion 217.

"Eject Operation" The motor 109 is rotated in reverse by an external eject signal to eject the disc MD in the reverse operation of loading.
The storage operation is slightly different.

That is, the disc MD is partially ejected by the eject arm 207 of the secondary loading mechanism 209. In this state, when the movable plate 115 starts moving forward, the clamper 128 causes the disk M to move.
While holding D, the control plate 127 slides, the cam pin 130 provided on the control plate 127 enters the cam hole 125 of the movable plate 115, restricts the rotation of the clamper 128, and pushes out the disc MD (see FIG. 41 ( See 1) and (2)).

Before the disc MD is stored in the magazine 1, the front edge of the control plate 127 hits a stopper (not shown) of the chassis body 114 to stop the operation (see FIG. 41 (3)). 128
Continues to move forward and stores the disc MD in the magazine 1 (see FIG. 41 (4)).

Further from this position, the clamper 12
8 is moved forward, the control plate 127 is reset, and the clamper 128 is rotated by applying the clamper 128 to the stopper so that the bent portion 304 at the end portion of the reset plate 302 becomes the plate engaging portion 14 of the clamper 128.
It enters inside 1a (see FIG. 41 (5)).

By performing the inversion operation in this state,
The clamper 128 retreats in a rotating state using the inside of the bent portion 304 at the end of the reset plate 302 as a guide, so that the clamper 128 does not engage with the disc MD again and returns to the stand-by position. (Fig. 41
(6) and (7)).

The magazine 1 is attached to the magazine holder 500.
When discharging from the first and second operating pieces 115, 116 of the loading unit 4, the interference portions 58Aa, 58Ba of the trigger plates 58A, 58B, 58C,
This trigger plate 58A, 58 interferes with 58Ca.
This is performed by rotating B and 58C.

That is, the magazine 1 stored in the left magazine storage portion A is discharged as follows. As shown in FIG. 79, the loading unit 4 is moved to the left by the operation of the slide mechanism 71 from the state where the loading unit 4 is located at the position (lowermost position) by the operation of the slide mechanism 71 and the elevating mechanism 84. The second operation piece 116 of the loading unit 4 interferes with the interference portion 58Aa of the trigger plate 58A, and the trigger plate 58A is rotated leftward to move the lock plate 50 to move the locking pin. The member 56 is removed from the locking portion 31a of the locking groove portion 31, the rack member 66 is pulled back by the spring force of the spring 67, and the sliding pin 64 moves to eject the magazine 1. In this case, the gear 69 meshing with the rack 66a of the rack member 66 rotates and the damper 68 operates to adjust the ejection speed of the magazine 1.

The magazine 1 stored in the central magazine storage B is discharged as follows. As shown in FIG. 79, the loading unit 4 is moved to the left by the operation of the slide mechanism 71 from the state where the loading unit 4 is located at the position (lowermost position) by the operation of the slide mechanism 71 and the elevating mechanism 84. The second operating piece 116 of the loading unit 4 interferes with the interference portion 58Ba of the trigger plate 58B, and by rotating the trigger plate 58B in the left direction, the lock plate 50 is moved to move the locking pin. The member 56 is removed from the locking portion 31a of the locking groove portion 31, the rack member 66 is pulled back by the spring force of the spring 67, and the sliding pin 64 moves to eject the magazine 1. In this case, the gear 69 meshing with the rack 66a of the rack member 66 rotates and the damper 68 operates to adjust the ejection speed of the magazine 1.

Further, the magazine 1 stored in the right magazine storage portion C is discharged as follows. As shown in FIG. 79, the sliding mechanism 7 is moved from the state where the loading unit 4 is in the c position (lowermost position) by the operation of the sliding mechanism 71 and the lifting mechanism 84.
The second operating piece 116 of the loading unit 4 moves to the right by the operation of No. 1 and the trigger plate 5 moves.
By interfering with the interference portion 58Ca of 8C and rotating the trigger plate 58C in the right direction, the lock plate 50 is moved to move the locking pin member 56 from the locking portion 31a of the locking groove portion 31. Then, the rack member 66 is pulled back by the spring force of the spring 67, the sliding pin 64 moves, and the magazine 1 is ejected. In this case, the gear 69 meshing with the rack 66a of the rack member 66 rotates and the damper 68 operates to adjust the ejection speed of the magazine 1. In addition, the trigger plate 5
It goes without saying that the position of the operating piece for rotating 8A to 58C is appropriately changed according to the mounting position of each plate.

In this way, the ejecting operation of the magazine 1 is performed by the sliding operation by the loading unit 4,
Since that position is within the selection operation area of the disc MD, it is necessary to prohibit some random access.

[Switch Operation] As shown in FIG. 60, in the standby state A-1, the switch 300 is in the off state, and the switch 301 causes the second short circuit. Then, the movable plate 146 and the clamper 128 are advanced to clamp the disk MD B
-1, the switch 300 causes a first short circuit,
The switch 301 is off.

As shown in FIG. 60, in the loading end state C-1, the switch 300 causes a second short circuit and the switch 301 causes a second short circuit. In addition, in the overloading state D-1, the switch 300 causes the first short circuit and the switch 30
1 produces a first short circuit. Also, from the stand-by state A-1 to the disc MD clamped state B-1
Both the switches 300 and 301 are in the off state during the period up to.

Further, between the standby state A-1 and the loading end state C-1, the switch 300 is in the off state, and the switch 301 causes the second short circuit. Further, during the period from the standby state A-1 to the overloading state D, the switch 300 causes the first short circuit and the switch 301 is in the off state.

As described above, the two switches 300 and 301
Switch plate 303 and reset plate 3
Standby condition A
It is possible to identify four modes: -1, a state where the disc MD is clamped B-1, a loading end state C-1 and an overloading state D-1.

Further, the switch 400 is for detecting in which stage of the magazine 1 the disc MD is accommodated, from the stand-by state A-1 to the disc MD clamped state B-1, the stand. If the switch 400 is turned on while performing the operation from the bypass state A-1 to the overloading state D-1, the disc MD
It is determined that there is.

When the disc player is placed horizontally, the floating unit 108 is vertically hung by the floating spring 194 on the left side and the right side of the floating unit 108 as shown in FIGS. 54 and 55. Is the floating springs 25 on the right and front
It is hung in a state of being biased obliquely upward by 9, 260. In this case, the floating arm 18 on the left
7 is locked to the locking portion 191 at the 0 degree position, the floating arm 187 is in the posture at the 0 degree position, and the right floating arm 18 is
The protruding portion 196 of No. 8 is locked by the locking portion 197 at the 0 degree position, and the floating arm 188 is in the posture at the 0 degree position. Then, the counter pulling 203 is
Since the floating arm 188 is in the posture of 0 degree position, it is in a horizontal state as shown in FIG. 54 (1).

Since the front and rear floating springs 259 and 260 on the right are inclined rearward, the biasing force F of these floating springs 259 and 260 is directed obliquely upward as shown in FIG. 54 (2). The horizontal component F1 of this urging force F is the floating unit 1
It is not necessary to suspend 08. In addition, the counter pulling 203 is used for the floating arm 18
Since 8 is in a posture of 0 degree, it is in a horizontal state and urges the floating unit 108 horizontally and backward. Therefore, the counter pulling 203
The urging force F3 of 1 cancels the horizontal component force F1 of the urging force F.

When the disc player is placed vertically, the protrusion 1 of the left floating arm 187 is used.
89 is disengaged from the locking portion 191 at the 0-degree position and pivoted forward to be locked at the locking portion 192 at the 90-degree position to bring the floating arm 187 into the posture at the 90-degree position.
Remove the protrusion 199 of the right floating arm 188 from the locking portion 197 at the 0 degree position, and rotate it forward 9
The floating arm 188 is locked to the locking portion 198 at the 0-degree position to bring the floating arm 188 to the 90-degree position.

By the posture of the left floating arm 187 at the 90 degree position, the left floating spring 194 becomes vertical. Right floating arm 188
According to the posture of 90 ° position, the counter pulling 203 becomes horizontal as shown in FIG. 58 (1).

When the disc player is placed vertically, the floating springs 259, 260 on the right and front sides are inclined to the left in FIG. 58 as shown in FIG. 58 (1). The urging force F of 259 and 260 is directed obliquely upward as shown in FIG. 58 (2), and the horizontal component force F of this urging force F.
1 is unnecessary for suspending the floating unit 108. In addition, the counter pulling 203
Is in a horizontal state, and the floating unit 10
8 is urged horizontally and to the left in FIG. 58 (1). Therefore, the biasing force F3 of the counter pulling 203 cancels the horizontal component force F1 of the biasing force F.
The switching of the left and right floating arms 187 and 188 is performed when the loading unit 4 is in the stand-by position in both the vertical and horizontal positions.

[0121]

As described above, according to the present invention, the floating unit in which the floating unit is hung on the left and right sides of the floating unit with respect to the fixed frame, and the angle between the fixed frame and the floating unit can be adjusted. When the apparatus main body is placed horizontally and vertically, the counter spring that is bridged over the counter spring adjusts the angle of the counter spring to offset the horizontal component of the biasing force of the floating spring. Since it is provided with an angle adjusting means to be attached to, when the device is placed horizontally and vertically,
By adjusting the angle of the counter spring by the angle adjusting means, making the counter spring horizontal, and unnecessary for suspending the floating unit,
The biasing force of the counter spring offsets the horizontal component of the biasing force of the floating spring in the diagonal position.

As described above, it is unnecessary to suspend the floating unit by adjusting the angles of the counter springs different from the floating springs without changing the postures of the floating springs.
Compared to a conventional disc player that changes the posture of multiple floating springs in order to offset the horizontal component of the biasing force of the floating spring in an oblique posture,
The structure is simplified and the device can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view of a disc player according to the present invention with a part thereof omitted.

FIG. 2 is an exploded perspective view of the disc player with a part thereof omitted.

FIG. 3 is an exploded perspective view of a magazine.

FIG. 4 is a rear view of the magazine.

FIG. 5 is a plan view of the same magazine without a tray.

FIG. 6 is a left side view of the magazine.

7 is a cross-sectional view taken along the line DD of FIG.

FIG. 8 is a cross-sectional view of a mounted state of the trace topper.

FIG. 9 is a side view of the trace topper.

FIG. 10 is a plan view of the tray.

FIG. 11 is a plan view of a magazine holder in the base unit.

FIG. 12 is a magazine guide mechanism on the back side of the magazine base, a magazine lock mechanism, and an unlock mechanism;
It is a structure explanatory view with a magazine discharge mechanism.

FIG. 13 is a plan view of a lock plate of the magazine lock mechanism.

14 is a view from the direction E in FIG.

FIG. 15 is a front view of a trigger plate of the unlocking mechanism.

FIG. 16 is a plan view of the trigger plate.

FIG. 17 is an explanatory diagram of a locked state of the magazine.

18 (1) and 18 (2) are illustrations of ejecting a magazine.

FIG. 19 is a front view of the lifting unit.

FIG. 20 is a side view of the lifting unit.

FIG. 21 is a view as seen from the direction of the arrows in FIG. 20G-G.

FIG. 22 is a plan view of a slide mechanism.

FIG. 23 is a plan view of a synchronous rotation drive mechanism.

FIG. 24 is a view from the direction H in FIG. 23.

25 is a view from the direction of I in FIG. 23.

FIG. 26 is an explanatory diagram of an optical sensor and its detection unit.

FIG. 27 is an explanatory diagram of a switch and its detection unit.

FIG. 28 (1) is an explanatory diagram of an output signal of the optical sensor. (2) is an explanatory diagram of an output signal of the switch.

FIG. 29 is a plan view of the lifting mechanism.

FIG. 30 is a front view of a case of the lifting mechanism and a chassis portion of a loading unit that is vertically movable in the case.

FIG. 31 is a side view of the inner cam plate.

FIG. 32 is an inner view of the outer cam plate.

33 is a cross-sectional view taken along the line JJ of FIG.

34 (1) to (5) are behavior explanatory diagrams of the outer cam plate when the floating unit moves from the uppermost position to the lowermost position.

FIG. 35 is a plan view of a loading unit.

FIG. 36 is a front view of the loading unit.

FIG. 37 is a side view of the loading unit.

FIG. 38 (1) is a plan view of the disassembled state of the primary loading mechanism. (2) is a side view of the primary loading mechanism in an exploded state. (3) is an arrow view from the K direction of (2).

FIG. 39 (1) is a front view of the clamper of the primary loading mechanism. (2) is a plan view of the clamper. (3) is an arrow view from the L direction of (2).

40 (1), (2), and (3) are operation explanatory views of the disk withdrawal of the primary loading mechanism.

41 (1), (2), (3), (4), (5),
(6) and (7) are diagrams for explaining the operation of storing the disc in the magazine by the primary loading mechanism.

FIG. 42 (1) is a plan view of the chassis unit of the loading unit. (2) is an arrow view from the M direction in FIG. 42. (3) is an arrow view from the N direction of FIG. 42.

FIG. 43 is an exploded view of the left part of the mechanical lock mechanism.

FIG. 44 (1) is a side view of the operating plate.
(2) is an arrow view from the 0 direction of (1).

FIG. 45 (1) is a side view of the left lock plate. (2) is an arrow view from the P direction of (1).

FIG. 46 (1) is a side view of the right lock plate. (2) is an arrow view from the Q direction of (1).

FIG. 47 is a left side view of the mechanical lock mechanism and the floating unit.

48 (1), (2), and (3) are operation explanatory views of the operation plate and the timing plate.

FIG. 49 (1) is a plan view of the chassis unit of the loading unit including the operation plate releasing mechanism.
(2) is an enlarged detailed view of a Q-1 portion of (1).

FIG. 50 is a plan view of a loading unit including a floating direction switching mechanism, with some parts omitted.

51 is a view taken in the direction of the arrow R in FIG. 50.

52 is an arrow view from the S direction in FIG. 50. FIG.

FIG. 53 is an arrow view from the T direction in FIG. 50.

54 (1) is a side view of the floating unit as viewed from the direction U-1 in FIG. 50, in which the floating unit is suspended at 0 °. FIG. (2) is an explanatory view of the biasing force F of the floating spring and the biasing force F3 of the counter spring.

FIG. 55 is a plan view of the floating unit in a suspended state.

FIG. 56 is a side view of the left floating arm.

FIG. 57 is a side view of the right floating arm.

FIG. 58 (1) is a side view of the floating unit in a 90-degree suspended state. (2) is an explanatory view of the biasing force F of the floating spring and the biasing force F3 of the counter spring.

FIG. 59 is a plan view of the chassis unit of the loading unit including the switch mechanism.

60 (1), (2), (3), and (4) are operation explanatory views of the switch mechanism in a stand-by state, a disc clamp state, a loading end state, and an overloading state.

FIG. 61 is a plan view of the switch.

FIG. 62 is an explanatory diagram of a switch operation in a stand-by state, a disc clamp state, a loading end state, and an overloading state.

FIG. 63 is a plan view of a floating unit.

64 is an arrow view from the V direction in FIG. 63.

FIG. 65 is a view seen from the direction U in FIG. 63.

66 is an arrow view from the W direction in FIG. 63.

67 is an arrow view from the X direction in FIG. 63.

68 is a plan view of the holder. FIG.

69 is a view from the direction Y in FIG. 68.

70 is an arrow view from the Z direction in FIG. 68. FIG.

71 is an arrow view from the direction A1 of FIG. 68. FIG.

FIG. 72 is a plan view of a floating unit including a secondary loading mechanism.

73 is a view as seen from the direction of the arrow in FIG. 72B1.

FIG. 74 is a plan view of the secondary loading mechanism.

FIG. 75 is a plan view of the clamper of the secondary loading mechanism.

76 is a view from the direction of C1 in FIG. 75.

77 is a view from the direction of the arrow D1 in FIG. 75.

FIG. 78 is a rear view of the clamper.

FIG. 79 is an illustration of ejecting a magazine.

[Explanation of symbols]

 4 Loading Unit 107 Chassis Unit 108 Floating Unit 114 Chassis Frame 194, 259, 260 Floating Spring 203 Counter Spring MD Disc

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[Procedure amendment]

[Submission date] November 22, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0077

[Correction method] Change

[Correction content]

By the way, the outer cam plates 87L, 87R
Since the guide cam 101 has a position where the groove-shaped cam portions 102 and 103 intersect with each other, the guide shafts 300L, 300R, 301L and 301R will not fit in the target groove-shaped cam portions 102 and 103 unless some restrictions are imposed. Absent. That is, taking the case where the loading unit 4 descends as an example, the upper guide shafts 300L and 300R are shown in FIG.
From the position ( 10) of the grooved cam portion 102 as shown in
34 (2), the guide shafts 300L and 300R are moved to the grooved cam portion 103.
It is necessary to regulate so as not to move to the side (the position), that is, to move to the grooved cam portion 102.

Claims (1)

[Claims] 1. A floating spring in an oblique posture, in which a floating unit is hung on the left and right sides of a fixed side frame, and a counter spring hung between the fixed side frame and the floating unit so as to be adjustable in angle. And an angle adjusting means for applying a horizontal urging force to the counter spring to adjust the angle of the counter spring to offset the horizontal component of the urging force of the floating spring when the main body is placed horizontally and vertically. A disc player characterized by that.