JPS5987657A - Automatic disk player - Google Patents

Abstract

PURPOSE:To reduce the cost of a disk presence discriminating mechanism and the overall cost of an automatic disk player by forming said mechanism with a pure mechanical structure. CONSTITUTION:When a slide plate 93 slides, a reset plate 147 oscillates. In response to this oscillation of the plate 147, a detection plate 86 oscillates. Then a hook part 87 of the plate 86 moves to a hooking position with a hook part 82 of a disk mounting detection pin 80 provided to a turntable 6. When no disk 16 exists, the part 82 is set at a lower position and hooks the part 87 to give pressure. Therefore the plate 86 oscillates and hooks an intermediate lever 102. In this case, the plate 147 has no oscillation. When the plate 93 slides further, the lever 102 hooks the plate 86 and a relay lever 108 respectively. Thus the lever 108 oscillates to move a control plate 113. Then the hook is released between a hook 131 and a switch locker 220, and both the hook 131 and a latch stopper 129 have oscillations. Thus a pickup plate 123 oscillates, and therefore a lead-in action is prevented.

Description

[Detailed description of the invention]

The present invention relates to a self-playing disc player. Conventionally, in so-called automatic performance disc players in which disc performance is performed automatically, it is determined whether or not a disc is placed on the turntable, and when a disc is not placed on the turn table, the lead-in operation of the tone arm is performed. A mechanism for determining the presence or absence of a disk is provided. For example, C is a light source and 7
A device using an otosensor is known. The disk presence/absence determination mechanism is relatively expensive, and it has been desired to develop a low-cost disk presence/absence determination mechanism. An object of the present invention is to provide an automatic performance disc player 17 equipped with an inexpensive disc presence/absence determining mechanism. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic performance disc player 17 according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes the main body of an automatic disc player which is an embodiment of the present invention. 2 is a player unit, and a guide Ig! such as a rail is attached to the housing 3 of the main body 1. It is provided so that it can be freely protruded and stored via 4R (#i shown). The slide base 4 of the play 17 unit 2 has a turntable 6 rotatably driven by a motor 5 provided on the slide base 4, and a turntable 6 rotatable by a shaft 7 provided on the slide base 4. An i-arm 8 is provided which is supported and has a rest position at the deepest end of the player unit 2 in the storage direction Y, and which performs lead-in by rotating toward the side end of the player unit 1. There is. The output shaft 9 of the motor 5 is provided with a small gear 10 and a pawl 11. A shaft 12 attached to the slide base 4 of the player unit 2 has a toothless portion 13 on the right side and a small gear 10.
A main gear 15 having a main gear portion 14 that can mesh with the main gear 15 is rotatably mounted. 16 is a disk 4 placed on a turn table 6''. Further, a substantially dogleg-shaped swing arm 18 is rotatably supported on the shaft 12 . At one end of the swing arm 18, there are two large and small gear parts 1.
A planetary gear 21 that covers parts 9 and 20 is rotatably supported by a shaft 22, and is fitted into a substantially rectangular through hole 23 formed in the slide base 4. The large gear portion 19 of the planetary gear 21 meshes with a subordinate gear portion 25 provided on the lower surface of the main gear 15. On the other hand, the housing 3 is provided with a play (protruding housing direction of the units 1 and 2 (opposite direction and Y direction)) and facing the planetary gear 21 so as to sandwich the planetary gear 21.
A rack member 28 having a pair of rack gears 26 and 27 that can mesh with the small gear portion 20 is fixedly provided. Between the bent portions 29 and 30 provided at the ends of the rack gears 26 and 27 in the storage direction, and between the bent portions 31 and 32 provided at the end portions of the rack gears 27 in the protruding direction, there are gaps 33 in which the small gear portion 20 can idle. and 34 are formed in the rack member 28, which engages with the F end protrusion 39 of the shaft 22 of the swing arm 18 and guides the planetary gear 21.
0 is set LJ and C. Left end of slide base 4 (player unit storage Ij
A click lever 'lJ' is rotatably supported by a lever 44 near the part C) in the direction Y. A protrusion 46 is provided at one end of the click lever 45, and when the play 17 unit 2 is extended or retracted, the housing 3
It is engaged with a pair of L1 screws 47 and 48 which are fixed in place above. A click spring 51 is provided between the other end 49 of the click lever 45 and the other end 5o of the swing arm 18. Above click lever 45.1

The player unit i from the housing 3 is
The swing arm 18 is moved in the Rfil lj direction and the release direction in the protruding position and storage position of ~2 (=J9!), respectively.
! A switching biasing means 52 is configured. Further, the protrusions 53 and 54 control the rotation of the click lever 45. A substantially dogleg-shaped switching lever 56 is swingably supported on the slide base 4 by a shaft 55. The switching lever 56 regulates the swinging of the swinging arm 18 by having an engaging portion 57 at one end engaged with an upper end protrusion 59 of the shaft 22 of the swinging arm 18 . The switching lever 56 is biased clockwise in FIG. 2 by a coil spring 58. The lock 1 collar 62 is rotatably supported on the slide penis 4 by a shaft 61, and when its one end engaging portion 63 engages with the protrusion 64 stepped on the switching lever 56, the switching lever is activated. 56, and is biased by a coil spring 65 in the direction of the removed product 1 in FIGS. 2 and 3. The lock lever 62 is rotated clockwise by pulling the 1-rigger 70 connected to the other end 60 of the lock lever 62 toward the lower blade as shown in the figure.
-1- Switching lever 5G, = 1 spring 5 F3.11
A regulating means (no number) for regulating the swinging of the swinging arm 1 [3] is controlled by the Tsuku 1 collar 62 and the trigger 70.
When the rigger 70 is pulled, the other end of the switching lever 56 is released from the swing restriction by the lever 62. A timing cam 75 is provided with which the portion 74 can be slidably engaged. 8
This is a type of timing means that is staged to be performed after the elevation-up operation is completed. In the evening, as is particularly clear in FIG.
8 between sections 80 and 1.8 where the swinging of tone arm 8 is restricted until the elevation-up operation of tone arm 8 is completed; A section CA in which the swinging arm 18 is allowed to swing after the completion of the F raising elevation up operation, and a section AB in which the swinging regulation of the swinging arm 18 is restored at the end of one rotation of the main gear 15 are formed. has been done. Switching biasing means 52, the above-mentioned regulating means and timing cam 7
5 swings the C swinging arm 18 in response to the trigger 70 being pulled, and the C planetary gear 21 is moved to the locking gear 2.
6 or 27 constitutes a swing arm driving means. The disk mounting/prevention detection bin 80, which has shaft portions 78 and 79 at both ends rotatably supported by the turntable 6, detects whether or not the disk 16 is placed on the turn table 6. When the detection section 81 installed at the end is placed on the turntable G and engaged with the recording surface of the I disk 16, the other end engaging section 82 is lifted upward (in the direction of arrow Z). A detection plate 86 for non-detection of the disc, which is rotatably mounted on the slide base 4 by a shaft 85, is configured to rotate at 4 hours from the first rest position shown in the figure. When the disc 16 is rotated by a predetermined angle in the second rest position, the disc 16 is placed on the turntable 6.
An engaging portion 87 is installed which engages with the engaging portion 82 which hangs downward when the C is not placed. Further, the protrusion 88 provided on the slide base 4 restricts the rotation of the detection plate 860 when the time is released. On the other hand, a shaft 90 is fixed on the main gear 15,
The shaft 90 has a claw 11 provided on the output shaft 9.
The L-shaped starting part 91 and the starting part 92 are rotatably taken. Further, the activation piece 91 and the activation piece 92 are fixed to the beam. A heart-shaped cam groove 95 is formed on the lower surface of the main gear 15, into which a pin 94, which is attached to one end of a slide plate 93 that controls the ride-in and return operations of the h-ener 118, is fitted. The slide plate 93 has a long piece of silk extending in its longitudinal direction.
A guide hole 96 is formed, and when the main gear 15 rotates, the slide plate 93 is rotated by a pin 97 that fits into the guide hole 96 and is fixed on the slide base 4.
[The main gear 15 is guided, slides in the longitudinal direction of the slide plate 93, and makes one reciprocating motion for each rotation of the main gear 15. One end of the intermediate lever 102, which is swingably supported by a shaft 101 on the slide plate 93, is connected to an engaging portion 103 of the detection plate 86, which is moved to the second rest position when the slide plate 93 is operated. Engageable projections 104 are provided. Furthermore, the protrusions 105 and 106 provided on the slide plate 93 serve to restrict the swinging of the first intermediate collar 102 within a predetermined range. A dogleg-shaped relay lever 108 swingably supported on a shaft 107 on a slide base 4 is connected to a detection plate 8G.
In which engagement state is the projection 109 provided at the other end of the intermediate lever 102 engaged with the engagement portion 110 at one end of the intermediate lever 102 as the slide plate 93 is operated, and the disengagement shown in the figure is achieved. It rotates 1Illll times in the π1pj direction. Play X/]-tsu! -2 storage protrusion jj Irq (Y
Slide base 4. [The control board located at 21 control board'+ 13
There is a long and slender guide hole extending in the direction of the floor/J.
14 is formed, and a pair of bottles 1'15 and 11G fixed to the slide base 4 are slidably (fitted) in the guard hole 114. At one end of the plate 113, there is a pre list 722.
) A long long hole 117 along the width direction (x direction) of the C slide base 4 is installed in the installation groove 11 and a protrusion 118 provided at the other end of the relay lever 108 is slidably inserted into the long hole 117 ( They are fitted together. Also, =, 1-1 to 11- plate 1
'+3 is] Illustrator 119 J: C Brake X7
:] It is biased in the knit storage direction Y -C. . On the other hand, the shaft 7 supporting the swing arm 8 has a pick 1 push play 1 123 and a guide lever 1.
2/I is pivotally supported and 1・-nj'
b8 is connected to 1lI11'. A latch stopper 129 supported on the idle base 4 by a shaft 128 in a swing position is
~ Rotatable by a pin + 30 on the collar 129 (J pivoted and cooperates with the hook 131 to prevent the lead-in of the arms 1 to 8) As shown in the figure, a lead-in prevention means 133 is constituted by a 21-el spring 132 which biases in the 61 direction and a hook 131. The latch stopper 129 includes an engaging portion 1 that is provided at a predetermined position of the pickup play 1-123 and can be engaged with a protrusion 134.
The latch stopper 129 is also provided with a protrusion 136 that restricts the rotation of the hook 131. A protrusion 141 that can be engaged with each of the two engaging portions 139 and 140 installed in The lever 102, the relay lever 108, the lever plate 113, and the lead-in prevention means 133 determine whether or not the disc 16 is placed on the turntable 6, and determine whether or not the disc 16 is placed on the turn table 6. A disk presence/absence determining mechanism is configured to inhibit the lead-in movement f1 of the tone arm 8 when the tone arm 8 is not being operated. 146 is means for resetting 1- of the disc presence/absence determining mechanism; A reset plate type 147 is swingably supported on the same shaft 85 as the detection plate 86 for detecting the presence or absence of a disc, a click spring 148 is inserted between one end of the relet plate 147 and the detection plate 86, and one end is bent L-shaped 147. ~ Play 1 - Engage with the protrusion 149 of l/17 and move the reset plate and detection plate 8G clockwise as shown in the figure (or in the forward movement direction of the slide plate 93).
The springs 150 and 21 springs 150 and 150 are configured with J and C. The protrusion 149 of the Reren 1 Heb I Note 147 is the long hole 1 provided in the J sea urchin detection plate 86 shown in FIG.
51 so that Jim can move freely. Further, the other end engaging portion 152 of the reset plate 47 can engage with a protrusion 153 installed on the slide plate 93-H. The protrusions 154 formed in stages on the slide base 4 limit the counterclockwise swinging of the rillet plate 147 within a predetermined range. A substantially doglegged member 16'1 swingably supported by a shaft 160 on the slide base 4 is a detection lever. An engaging portion 162 at one end of the detection lever 161 can engage with a protrusion 163 provided on the pickup plate 123, and an engaging portion 164 at the other end can come into contact with the activation piece 92 of the main gear 15-to. . Further, the detection lever 161 is provided with a long hole 165 into which the protrusion 149 of the detection plate 8G is slidably fitted. The detection lever 161 is +-
- Before the return operation of the lead-in arm 8, the one end engaging portion 162 is swung out of the rotation locus of the protrusion 163 of the pick 7 pull plate h123, and after the lead-in operation, the one end engaging portion 162 is 162 is engaged with the protrusion 163 so that the protrusion 163 is rotated within the rotation locus. Further, the detection lever 161 is connected to the pickup plate 1
23 constitutes a performance end detection means (for detecting the end of a performance), and the operation of the performance end detection means is as follows:
It is designed to be interlocked with the reciprocating movement 1r of the slide plate 93. Reference numeral 170 denotes an intermediate gear, which is rotatably supported by a shaft 171 on the slide base 4, and meshes with a rack portion 172 having three stages of snoid plates 93. A protrusion 173 is fixed on the intermediate gear 170! When J3 is opened, the engaging portion 174 of the latch stopper 129 is engaged. Further, a suspension cam 177 having a tapered portion 17.5 and a horizontal portion 176 is formed on the intermediate gear 170, and is movable on the slide base 4 in the vertical direction (arrow ZJJ direction and the opposite direction). Stage number: FJ via the soil vation sheet 178 and damper 179
It is movably engaged. The elvage concierge 1-178 has a type in which the arms 1 to 8 engage at a protruding engagement portion 180 provided near the rotational axis and bear their own weight.On the other hand, , 1, a pickup gear 185 having a substantially ten-shaped shape is rotatably supported on the rotation support shaft 7 of the first gear 8, and meshes with the intermediate gear 170. As shown in FIG. On the pickup gear 185, there is a lead-in latch 187 that is rotatably supported by a shaft 186 and can engage with the projection 134 of the pickup plate 123, and both the lead-in latch 187 and the projection 13
A protrusion 188 for holding the 4 is provided.
On the big up gear j2185, one end has a fixed part 118.
9 , and the other end bent portion 190 is provided in the lead-in latch 187 in correspondence with the bent portion 191 .
A leaf spring 192 that can be engaged with the lead-in latch 187, the protrusion 188, and the leaf spring 1 is provided.
Reference numeral 92 constitutes an engaging means 193 that causes the arm 8 to lead in as the main gear 15 reciprocates by 1ulf1 per rotation. Note that the lead-in latch 187 has an engaging portion 195 that is
At the rest position of the lead-in latch shown in FIG. 7, it engages with the bent portion 190 at the other end of the leaf spring 192 and is positioned at the rest position. Reference numeral 197 denotes an actuating member, which is swingably supported by a shaft 198 on the back surface of the slide base 4. One end engaging portion 199 of the actuating member 197 is provided on the slide base 4.
) protrudes from the through hole 200 into the slide base 4-1. , this actuating member 197 is shown in FIG.
Place the position shown in the first position () in the first position ().
One end of the engaging portion 199 engages with the lead-in latch 187 to operate the lead/C-n-wrap 187. The actuating member 197 swings a predetermined amount in the clockwise direction as shown in the figure ( ), and one end 201 of the two-pronged portion comes into contact with a protrusion 202 fixed to the back surface of the slide base 4. This state is defined as the second position, and in the second position, the engaging portion 199 at one end is not engaged with the lead-in wrap 187.The operating member 107 is at the two-pronged branch portion at the other end. On the other hand, by the click spring 204 installed between the slide base 4 and the 203,
At this position, it is biased in the anti-O\π1 direction and clockwise. A total of 20 protrusions 3 are fixed to the back of the slide base 4.
1. This restricts the counterclockwise rocking of the actuating member 197 when it reaches the first position. Here, the above-mentioned def.
46, the play end detection means, the engagement means 193, and the actuating member 197 cause the one-play mechanism to perform the lead-in operation or return operation of the l-one arm 8 only when the disc 16 is present on the turntable 6. A leaf spring 210 serving as a first reset means, one end of which is fixed to the housing 3 by a pair of screws 209, is configured such that the other end of the leaf spring 210 is fixed to the housing 3 by a pair of screws 209.
11 engages with a protrusion 2'12 provided on one side 201 of the bifurcated portion of the actuating member 197 to move the actuating member 197 from the first position to the second position. Also,
An IL lug 215 as a second reset means fixed at a predetermined position of the housing 3 engages with a protrusion 216 set on the actuating member 197 immediately before the ejection operation of the player unit ~2 is completed, and the ILl lug 215 is fixed at a predetermined position of the housing 3. 197 from the second position n to the first position.The plate spring 210 and the block 215 cause the bird to move to -7 when the player unit 2 is in the housing 3.
The lead-in prohibition 11 means for prohibiting the lead-in operation of the play mechanism based on drawing 0 is configured. The switch rocker 220 includes a normally closed switch 221 that is fixed on the slide base 4 and controls rotation and stop of the motor 5.
As is particularly clear in FIG. 8, a protrusion 222 provided on the lower surface of the slide base 4 is slidably fitted into a long hole 223 provided in the slide base 4. . A pressing part 225 for pressing the actuator 224 of the switch 221 is installed at one end of the switch hook 220, and a pressing part 225 is installed at the other end to engage with a substantially triangular protrusion 226 of the hook 131. A mating portion 227 is provided. The switch rocker 220 is also formed with a protrusion 229 that can engage with a protrusion 228 installed on the hook 131 between the protrusions 141 and 226. - It is a lever and is swingably supported on the slide base 4 by the C1 shaft 234. The rest lever 233 is provided with an engaging portion 236 and a substantially hook-shaped engaging portion 237.
1 when engaging with 38 and operating the switch rocker 220.
A cam portion 239 is formed as a fulcrum. A pair of guide members 2 are fixed on the slide base 4.
44 and 245 together with the trigger 70.
, Leek]-2 storage protrusion facing both Y direction and counter Y direction)
When the trigger 246, which is swingably supported by the trigger 246, is pulled in the opposite Y direction, the switch 221 is closed and the main gear 15 is rotated. One end of the trigger 246 is connected to a predetermined position of the relay lever 108 so that when the trigger 246 is pulled in the counter-Y direction, the relay lever 108 swings 1 in the time-removal direction shown in the figure. In addition, the detection lever 161 is attached to the l-rigger 246 by pulling the l-rigger 246 in the opposite Y direction.
A plate spring 247 that can be engaged with a predetermined position of the detection lever 161 so as to swing in a direction opposite to Rft1 in the figure is attached via a support member 248. On the other hand, the l rigger 70 not only has one end connected to the other end 69 of the lock lever 62 as described above, but also
The connecting member 250 connects the 1-rigger 2'lC1 with the 1-rigger 2/I6, and by pulling the trigger 70 in the anti-Yh direction, the 1-rigger 2'lC1 is pulled in the same direction.However, the trigger 246 When the trigger 70 is pulled in the direction opposite to Y7j, the trigger 70 is not activated. 253 is a repeat member e that is activated and moved when repeating (re-playing), and is attached to the slide base 41- in the X direction and in the opposite direction with respect to the slide base 4. It is provided to be movable within a predetermined range in the X direction.At one end of the repeat member 253, there is a tapered engagement portion 255 that is installed on the rigger 246 and engages with a bent protrusion 254. As shown in Figure 1, play-%y, : l leek l
Various push buttons are installed on the front surface 259 of -2. By pressing the 0-ding button 260, the trigger 70 is pulled in the Y direction for a predetermined time, and by pressing the star I button 261.
This causes the trigger 246 to be pulled in the opposite Y direction for a predetermined period of time. Here, the loading button 260 is referred to as a first command signal generating means, and the start button 261 is referred to as a second command signal generating means. 2
Reference numeral 62 is a Libby 1-button, and by pressing it once, the C Libby 1 member 253 moves in the X direction, and by pressing it once again, the repeat member 253 is moved.
is arranged to move in the anti-X direction. Also, 26
Reference numerals 3 and 264 indicate an input capo button and a turntable rotation speed setting button, respectively, and since their operations are the same as usual, they will not be described in detail here. Also, 266 is U■I in housing 3! J freely steps [shows a door that has been knocked down]. Note that the first and second command signal generating means, main gear 1
5. Swinging arm 18, planetary gear 21, drive gears 26 and 27, swinging arm drive means, A-domain structure and lead-in prohibition.
A play that drives (7 units) is configured. Note that the above lead-in prohibition means does not require an e of 0, and may be omitted depending on the case. If it is not provided, when the player unit 2 is made to protrude from the housing 3 with the disk 16 placed on the turntable 6, for example, when the disk 16 is to be retrieved from the turntable 60,
--The lead-in operation of the lead-in arm 8 will be performed. Furthermore, the gears 26 and 27 may not be a pair, but may be a substantially oval rack gear without gaps 33 and 34, that is, with continuous and opposing rack parts. In this case, it is not possible to perform the lead-in operation of the arms 1 to 8 independently, separately from the protruding and retracting operation that causes the housing 3 of the player unit 1-2 to vibrate.Side end portion of the slide base 4 An index cam 270 ki, which is supported by a shaft 269 so as to be swingable, is placed on the turntable 6 and detects the rise of the C disc 1G and starts regeneration II of the tone arm 8 (t shown in the figure). !ヂ) to the introduction groove F of the J-record desk 16.The index cam 270 has a maximum diameter (external 1.3
El which is removably engaged with the outer periphery of the disk of m) and is 1q
- When the radius 271 is engaged with the outer periphery of the de and f disk of the maximum diameter, the pickup plate 12 is engaged.
The engagement portion 2 that engages with the tip engagement portion 272 of No. 3
73 and an engaging portion 274 that can engage with the tip engaging portion 272 of the pickup plate 123 when a disc other than the maximum diameter disc (for example, outer diameter 17C1ll) is played. I'm here. A reset lever 278 that frictionally engages with the index cam 270 and is swingably supported on the same shaft 269 as the index cam 270 is provided with a protrusion 279 at one end thereof. It is slidably engaged with the elongated hole 280. The long hole 280 is
During the lead-in process of the tone arm 8, the time is adjusted so that the reset lever 278 operates after the lead-in is completed! ! ! ! It is something that can be done. Next, the self-playing D, C Squble with the configuration described in ``-
The operation of step 7 will be explained in accordance with the operating procedure with reference to the drawings. 1(a), FIG. 9, and FIG. 21(a) show the state before the automatic performance disc player main body 1 is operated. In this state -3, first press the entry button 263, then press the 11-ding button 260. LI-
When the ding button 260 is pressed, the l-rigger 70 and the l-rigger 246 are simultaneously pulled in the counter-Y direction. 1~
When the rigger 246 is pulled (the relay lever'
08 rotates in the anti-Japanese i'i, ltlJ direction as shown in the figure, and the control plate 113 slides in the anti-Yh direction. Then, the protrusion 141 of the hook 131 becomes:I
Pressed by the engaging portion 139 of the inlet plate 113 (
, the hook 131 rotates counterclockwise to change from the state shown in FIG. 13 to the state shown in FIG. 14. That is, the protrusion 228 of the hook 131 disengages from the protrusion 229 of the switch rocker 220, and the support balance of the switch [:1 hook 220] is lost. Therefore, the switch [
The actuator 224 of the switch 221, which had been pressed L by the pressing portion 225 of the switch 220, returns to its original state due to its repulsive force, and the switch 221 becomes the A state, and the motor 5 begins to rotate in the direction of the switch 220. 1 to rigger 246 are pulled temporarily, and the hook 131 is pulled by the coil spring 132 when ffl
' It attempts to turn in the direction 7j and return to the original state shown in Figure 13, but at this time, the actuator 2 of the switch 221
24, the switch rocker 220 is moved u', and the protrusion 229 of the switch lug 220 is moved within the return trajectory of the protrusion 228 of the hook 131, so the hook 131 is 14 is locked in the state shown in the figure, and the A state of the switch 221 is maintained. Also, when the trigger 246 is pulled, the detection lever 161 rotates counterclockwise. The detection lever 16'1 rotates in the counterclockwise direction. When it moves, the other end engaging portion 164 engages the activation piece 92.
The actuating piece 92 and the actuating die 91 are rotated counterclockwise in the h1 direction, and the actuating die 91 engages with the pawl 11 installed on the output shaft 9, causing the main The gear 15 starts rotating in the opposite cutting direction. Then, from the position where the toothless portion 13 faces the small gear
At 112, the small gear 10 and the main gear 15 meet each other, and the main gear 15 continues to rotate. At the same time as the main gear 15 begins to rotate, the slide plate 93 begins to slide in the x direction by the A-1-shaped cam groove 95, and the intermediate 1! The gear 170 and the gear 185 begin to rotate in the opposite direction π1 and in the opposite direction 1, respectively. When the intermediate gear 15 starts rotating in the counterclockwise direction, 1. The latch stopper 129 is rotated in the first direction by the force of the coil spring 132. As the latch stopper 129 rotates, the protrusion 228 of the hook 131 shown in FIG.
Since the engagement state with the protrusion 229 of 0 is released, the hook 131 rotates in the horizontal lj direction by the biasing force of the =1 l spring 132 until it comes into contact with the protrusion 136 provided on the lubbs 1 to the collar 125). . This rotation of the hook 131 is instantaneous, and then, due to the rotation of the latch stopper 129, the triangular protrusion 226 of the hook 131 is moved to the switch I.
” because it engages with the engaging portion 227 of the hook 220, the hook 1
31 and the latch stopper 129 are locked in the state shown in FIG. In this state, the protrusion 141 of the hook 131 is still attached to the engaging portion 139 of the 1-L1-rule plate 113.
is engaged with. -, -, l, , l When the trigger 70 is pulled together with the rigger 246, when the U lever 62 rotates in the direction 81, the one end engaging portion 63 of the one lever 62 and the protrusion of the switching lever 56 6/l is disengaged, and the swing restriction of the switching lever 56 is released. The switching lever 5G whose swinging restriction has been released is J
Rotate clockwise until it abuts section C (see Figure 5). In this state, the information 22 of the swing arm 18 is still
Since the upper end protrusion 59 (shown in the fourth figure) contacts the inner surface of the engaging portion 57 at one end of the switching lever 56, the swinging of the swinging arm 18 is restricted, and the planetary gear 21 is a rack gear. It is in idle rotation L) in the gap 33 between 26 and 27. When the main gear 15 further rotates, the other end engaging portion 74 of the switching lever 56 passes through the 1-)C section of the timing force 1175 and engages with the CΔ section (see FIG. 5). Then, cut? ) The lever 56 rotates in the time it fj direction until the upper end protrusion 59 of the shaft 22 of the swing arm 18 no longer engages with the one end engaging portion 57 of the switching lever 56. Hidden C
The swing arm 1118 can swing, and the click spring 51
(swings in counterclockwise F, l, 'ij directions. Therefore, 7i2 star 1'a2'1 meshes with rack Ya26 of crawling member 2B. Planetary gear 21 is It is further rotated by the main gear '15 while being pressed against the rack gear j226 by the I1 force of the spring 58, so that it rolls along the rack gear 26 in the counter-Y direction. That is, as shown in FIG. 10, the player unit starts. When the player unit 2 moves in the counter-Y direction and reaches a predetermined position immediately before the position at which the projection to the outside of the housing 3 is completed (the position at which the disc is inserted and removed), the one end of the click lever 45 is pressed in a step (the protrusion 46 is inserted into the block 47). The click lever 45 is inverted in the opening direction. Therefore, the swing arm 18 and the planetary gear 21 apply a biasing force in the clockwise direction to the click spring 5'l. However, at this point, the switching lever 56 has returned to its original resting position by the timing cam 75, so the upper end protrusion 59 of the shaft 22 of the swinging knob 7-18 is
One end of the lJM lever 56 comes into contact with the outer surface of the engaging portion 57, and the swinging of the swinging arm 18 in the h1 direction is restricted. Accordingly, the planetary gear 21 will overturn in the gap 34 on the side opposite to the Y direction between the rack gears 26 and 27. Thus, as shown in FIGS. 11 and 21 ([), the player unit 1 - [2 C・°Nosing,
The protrusion to '1' is completed 1', 3° Fig. 15 IJ2;
1 (state C static+I (+-1tsuk)shi(iI,-
1 piece 1 stopper 129 and hook + 31 Lll,
Zo1 No) / Notes 1-2 housing; 3 Tato l\
Immediately before the protrusion of is completed (・11, middle 1"/"l 70
0) F stopper 1
J to engage and press the engaging portion 1't4 of 29.
When the hook 131 is released, the protrusion 228 of the hook 131 rotates in the 91h direction (Ly'), returning to the state before differential movement shown in FIG. Press the protrusion 229 of the lug 220 (゛, S・RF-1,1 lug 22
0 also returns to the original state shown in the 13th figure (11). Therefore, the pressing part 225 of the switch L lever 220 is
When the actuator 224 of 21 is pressed, the C tube 221 goes into the A-off state and a part of the valve 221 is turned off. Incidentally, when the C1 lead-in inhibiting means is activated as the Shire pull 7 units 1 and 2 protrude to the outside of the housing 8,
? As shown in FIG. 21 ([), the lead-in operation of 0 to 1. However, the 1-1 node 7-me 8 is installed on the intermediate gear 170 (J et al. , perform the 'C up-down motion in the rest position. Also, Figure 1 (
a'l, the condition shown in Figures 9 and 21(a)! 11
1, 43, Ll-ding button 260,
When the start button 261 is pressed, 1 to 70
is not pulled.The cL1 lever 62 does not rotate 1 degree.Also, the eyelid lever 62 does not rotate 1'.
As a result, the lead-in operation of the first arm 8 is prohibited. Therefore, the lead-in motion of J, urchin, 1 hen ah 80 shown in Fig. 21 (k+) also plays Xy IJ Ni 1 ~
The protruding operation of No. 2 to the outside of the housing 3 is also not affected. Next (S, as in -1-, IL no demon 7.] Knit 2
A case will be explained in which a D-C soph performance is performed in a state where the D-C is projected outside the housing 3. "Bre~no", Chive 1-2I, Figure 11 and above? f 21st
Since the state H'C shown in figure tf+ is stationary, Kuhn j
- Place a disk 16 with an outer diameter of 17 cm on the pull 6, for example.
M, Uru. In this case, if necessary, the disk is clamped in the usual manner. FIG. 21 ((The moon will be shown) (This turn J-BJ 6) After placing the disc on the 2nd page, press the start button 261 shown in FIG. When is pressed, 1-24
6 is pulled (and the process described above is followed (switch 221 is set to A).
The main gear 15 starts rotating. Furthermore, as in the previous case, the slurry plate 93 slides in the X fj direction, and the intermediate, 1:]' 170 and pickup gear' 1 B 5 rotate 911 in the counterclockwise direction and the hour 81 direction, respectively. Melt. As shown in Fig. 18(a), when the pick j' horn gear rotates in the nih direction at 1850 o'clock, the
, the lead-in latch 187 engages with the engaging portion 199 at one end of the actuating portion +4197. The pickup gear 185 continues to rotate further (゛,
The lead-r flap 18 is rotated μ in the opposite direction i1 by this one end engaging portion 1≦)9. Before the sliding of the plate 93 in the X direction ends at /'V''>, the bent portion 190 of the leaf spring 192 presses the temporary spring 192 into the groove 19 of the lead-in wrap 187.
'1 is forcibly interrupted, so the lead-C flap 18 is clicked and reversed. At this time, pickup gear 185
The protrusion 188 provided on the pickup plate 12
It is in contact with the protrusion 13/I of 3 (゛, 18th appearance)
As shown in FIG. Also, the rubvation up of 118 in this 11) point has been completed. When the main gear 15 rotates half a turn, the striped plate 93 rotates anti-X.
The intermediate 1''a (170) and the pickup gear 185 also begin to rotate in the h1 direction and in the opposite +1 and 'IN+ directions, respectively.
The pickup brake (123), which is holding the 4 in the middle, rotates in the opposite direction when the big foot gear 185 rotates, following which the pickup brake (123) The in operation is started. (See Fig. 18 (C)) When the 1-in arm 8 is rotated a predetermined amount in the 1 direction, the end engaging portion 27 of the pickup play 1-123 is turned.
2 comes into contact with the coupling portion 274 of the index cam 270, and the playback button (U not shown) of the 1-arm 8 is pressed against the disk 16.
is positioned directly above the introduction groove. The intermediate gear 170 is rotated further (the lead-in operation 187 is reversed and returned to the direction 81, and the protrusion 123 is released, and then the intermediate gear 17
The downward movement of the U I--n arm 8 is performed by the 1st and 1st revision cam 177 (tlc Fig. 21<ff1).
As shown in FIG. 1, the lead-in operation of the first arm 8 is completed. Here, we will explain the case where the disc 16 has an outer fM of 17 cm (without "゛" and is an LP disc with a length of 30 cm. In this case, the outer circumference of the LP disc has an index force l
The index cam 270 comes into contact with the roller 271 of \270, and is swung by a predetermined amount in the counter-wit direction against the frictional force with the reset 1-lever 278. Then, the tip engaging part 272 of the pickup play 1-123 comes into contact with the engaging part 273 of the index force l\270, and the playback needle of the first arm 8 is positioned directly above the introduction 'Wlt of the LP disc. It will be done. Parallel to the lead-in operation of the tone arm 8, the guide lever 124 also swings in the direction of the first poem, as shown in FIG. 124 presses the engaging portion 237 of the rest lever 233 to swing the rest lever 233 in the clockwise direction.
The lever 220 loses its holding point due to the cam portion 239 of the rest lever 233, the support balance is lost, and it is no longer movable. When the switch U lug 220 becomes movable, the hook 131 is moved by the engaging portion 227 of the switch L l lug 220.
17 because the locked state of the triangular protrusion 226 is released.
The hook 131 and the latch stopper 129 are the coil springs 13.
2, it swings in the 61 direction for a predetermined amount. At the engaging portion 174 of the latch stopper 129 that has swung clockwise,
As the slide plate 930 slides in the counter-X direction, the protrusion 173 of the intermediate gear 170, which rotates clockwise, engages and presses it. Therefore, the latch stopper 129 and the hook 131 swing counterclockwise and come to rest again in the condition shown in FIG. 16 is placed and there is no C, and as shown in the 21st section), when the C disk 16 is placed and C is not, 8 steps from 1 to 1 are carried out.
The function of the above-mentioned γ and C screen right non-discrimination mechanism that prohibits the do-in operation will be explained below. When the start button 261 is pressed in the state shown in FIG. 21 (1)) and a predetermined period of time has elapsed, the hook 131 and latch stopper 129 come to rest at the position shown in FIG. do. On the other hand, as the slide plate 93 slides in the X direction,
So, in Figure 19 (J shown in ω: sea urchin, slice 1: plate 9
The reset plate 147, which has one end engaging portion 152 engaged with the protrusion 153 of 31-, is
It swings in one direction until it comes into contact with the protrusion 154. As the reset plate 147 swings, the detection plate 86 is biased by the click spring 148 and swings clockwise.
= The engaging portion 82 of the disk placement detection pin 80 is moved to which engaging position. Disk 16 is turntable 6
When the pin 8o is not placed on the top, the engaging part 82 of the pin 8o moves downward (in the anti-Z direction) due to gravity, engages with the engaging part 87 of the detection plate 86, and presses it. IE iru. (When the disk 16 is placed, the engaging portion 82 moves upward, so the engaging portion 86 does not engage.) Therefore, the detecting plate 8G is opposite to 1i? It swings in the Ff1 direction, and its engaging portion 103 can engage with the protrusion 104 of the intermediate lever 102. In this case, the protrusion 149 provided on the rillet plate 147 slides within the elongated hole 151 of the detection plate 86, and the rillet plate 14-7 has a = 1 spring 15.0
Since it is biased in the direction of time t1, it does not swing. Therefore, the click spring 148 exerts a repulsive force. When the slide plate 93 further slides in the X direction, the 19th
As shown in Figure 1), the protrusion 10 of the intermediate lever 1o2
4 is the engagement part 103 of the detection plate 86, and the intermediate lever 1
The protrusion 109 of 02 is connected to the one end engaging portion 11 of the relay lever 108.
0 and engage with each other. Therefore, the slur f of the slide plate 93
As the middle II collar 108 swings in the release bar 1h direction, the control L1 control plate 113 moves in the opposite Yh direction. Engagement part 1
39 presses the protrusion 14'1 of the hook 131 I[L,,'
U, the hook 131 is forcibly rotated in the opposite direction, and the engagement between the triangular protrusion 226 of the hook 131 and the engaging portion 227 of the hook 220 is released. Ru. When the triangular protrusion 226 is disengaged from the engaging portion 227, the hook 131 and the collar 129 are moved by the biasing force of the spring 132.
] direction, and the engaging portion 135 of the ledge l-flange 129
The pick-up plays 1 to 123 enter the engagement position with the protrusions 134, and the pick-up plays 1 and 123 swing in the disengaging direction (as shown in FIG. 21 (1)). - The lead-in operation of the locking arm 8 is performed 611. Thereafter, as the slide plate 930 slides in the counter-X direction, the protrusion 173 on the intermediate gear 170 engages with the engaging portion 174 of the latch stopper 129. Since it presses
The hook 131 and latch stopper 129 are returned to the positions shown in FIGS. 19(a) and 15. Furthermore, as the slide plate 93 slides in the anti-X direction, the protrusion 153 on the slide plate 93 comes into contact with the engaging portion 152 at one end of the hit plate 1/17 and suppresses it. Therefore, the relet plates 1 to 147 rotate in the direction of the release product 1 against the force horn of the coil spring 150, and return to the original rest position. However, the detection plate 8G is "C times i11" by the protrusion 88.
It does not rotate because it is regulated. Therefore, the click spring 148 also returns to its original state. Now, when the disc playing with the player controller 2 protruding outside the housing 3 is finished, and the playback button (not shown) of the arm 8 is guided to the lead-out vortex of the disc 16, 1-- The turn arm 8 rotates in one direction a little faster by a predetermined angle (by the width of the groove).At this time, the protrusion for detecting the end of the performance provided on the pickup plate 123 shown in FIG. 163 is the detection lever 16
1 and presses it. Therefore, the detection lever 161 swings in the direction of release, and the main gear 15 begins to rotate following the previous stroke. When the main gear 15 starts rotating, the intermediate %! 'j'
The -L elevation cam 177 of 170 raises the elevation of the first arm 8. -h, the protrusion 153 on the slide plate 93 has been restricted to swing by J, and the play h 147 is l'147> (, -
At -C, the product swings in the 1 direction due to the biasing force of the +ir spring 150. Therefore, the detection lever 161 is biased in the opposite direction by the protrusion 149 of the relay brake 1-147, and its one end engaging portion 162 is rotated by the rotation of the performance end detection protrusion 163. The pickup plate 123, and therefore the 1-arm 8.
Due to the rotation of the pickup gear 185, the return operation is performed by continuing to rotate from the performance end position. As soon as the return operation is completed, the tone arm 8 is moved down, and the first arm 8 remains stationary at the rest position. Next, as shown in FIG. 21(C), after loading the disk 16 onto the turntable 6, the lead-in and return operations of the 1-1 arm and the player unit I.
A case will be described in which two storage operations are performed simultaneously in the housing 3. In this case, loading button 260 is pressed. When the Ll-ding button 260 is pressed in the state shown in FIGS. 11 and 21(C), the triggers 70 and 246 are both pulled as described above. When the trigger 70 is pulled, the lever 62 rotates clockwise and the swinging restriction of the switching lever 56 is released (see mainly FIGS. 2 and 3 below). The switching lever 56 whose motion restriction has been released is
As a result, the other end engaging portion 74 rotates in the h1 direction when it comes into contact with the ΔB section (shown in the fifth figure) of the timing cam 75 of the main gear 15. In this state, the upper end protrusion 59 (shown in the fourth figure) of the shaft 22 of the swing arm 18 is still in contact with the outer surface of the one end engaging part 57 of the switching lever 56, so the swing of the swing arm 18 is The N star gear 21 is idling in the gap 35 between the rack gears 26 and 27. When the main gear 15 rotates further, the switching lever 56
l! ! The end engaging portion 74 passes through the 130 section of the timing cam 75 and engages with C1% (see FIG. 5). When covered, the Akashi lever 56 is attached to one of the shafts 22 of the swinging arm 1ε3.
The end protrusion 59 rotates in the direction of the C distance along the CA distance until the end protrusion 59 no longer engages with the one end engaging portion 57 of the switching lever 56. Hidden-C swing j7-mu IB can now swing,
The click spring 51 is biased by J, Sf (the same product swings in the Ih direction. (Z1 no Xy, l knit 2 is protruding from the housing 3 as shown in Figure 11), As described above, the click side collar 45 rotates clockwise and reverses C, and the click spring 51 swings into the swing position lx'I O.
%0J Otsul tJ is in a state where A-1 is heading towards J. ) Therefore, the planetary gear 21 is engaged with the rack 1" horn 27 of the rack member 28. The planetary gear 21 is
J is pushed by the rack gear 27 by the biasing force of 8, and is transferred along the rack gear 27 in the -UY direction. That is, as shown in FIG. 12, the play 17 unit 2 starts moving in the Y direction with respect to the housing 3. Play 17] When the unit 1-2 moves in the Y direction and reaches a predetermined position just before the storage completion position in the housing 3, the protrusion 46 attached to one end of the click lever 45 moves to the block 48. , and the click lever 45 is reversed (knocked) in the time-removal direction.Therefore, the swing arm 18 and the planetary gear 21 receive the biasing force in the opposite direction h1 by the click spring 51. However, at this point, the switching lever 5G has returned to the original rest position according to the timing cam 75, so the shaft 2 of the swing arm 18
The upper end protrusion 59 of 2 is the one end engaging portion 5 of the switching lever 56.
7, and the swinging of the swinging arm 18 in the unloading direction is restricted. Follow-) (゛, 77W gear 21 is the gap 3 on the Y direction side between rack gears 26 and 27.
At 3, the car will idle. As shown in Hidden C1 (FIG. 9 and 21st appearance), the player unit 2 is housed in the housing 3 again. Note that when the l-rigger 246 is pulled, the lead-in operation and return operation of the l--n arm 8 follow exactly the same process as described above. ). Also, as shown in the 21st issue), the turntable 6
If the disc '16 is not installed in the main unit, the lead-in operation of the first arm 8 is prohibited by the disc i non-discrimination mechanism as described above, and
) Only the operation of storing the sea urchin players 1 and 2 into the housing 3 is performed. The disc 16 is played in the housing 33 on the chair 916. Play 17] After the performance of the disc 16 with the discs 1 and 2 stored in the housing 3 (Fig. 21) (Small state), if you want to perform again, press the start button 261.
When 1 is pressed, a replay is performed, which is exactly the same process as when the player unit 2 is projected outside the housing 3 (see FIG. 21(n)). If you wish to repeat the performance (repeat), you can press the repeat button 262 shown in FIG. By pressing the repeat button 262, the second
The repeat 1 member 253 shown in the figure slides back in the X direction.
5 and the protrusion 254 of the trigger 246 is released, and the trigger 246 becomes movable in the Y direction. Therefore, due to the biasing force of the coil spring 119 (see Figure 3), the
The heel plate 113 moves in the Y direction, and the engaging portion 140 of the control l-1 call plate 113 engages with the protrusion 14 of the hook 131.
It becomes possible to engage with 1. Therefore, when the hook 131 and the radii 1 to the collar 129 rotate in the 1 direction, the engaging portion 14
Since it is regulated by 0, the 1-in arm 8 can be repeatedly lead-in. Next, a description will be given of a place where the player finishes playing and collects the disc in the housing 3. In this case, in Figure 21 (Loading button 2 in the small state)
60 is pressed, but since the second purpose is to retrieve the disc 16, the lead-in inhibiting means causes the lead-in inhibiting means to press 1.
- Lead-in operation of the lead-in arm 8 is prohibited. FIG. 20 (al shows the state before the loading button 260 is pressed. When the loading button 260 is pressed,
As shown in No. 20, the play V1 units 1 and 2 begin to slide in the counter-Y direction, and the pickup gear 185 begins to rotate in the horizontal direction. As the player units 1 and 2 slide in the opposite Yh direction, the other end engaging portion 211 of the leaf spring 210 fixedly attached to the housing ζ3 engages the actuating member'
A protrusion 2 stepped on one side 201 of the bifurcated part 197
12 and press it. Therefore, the moving member 197 sometimes rotates in one direction and the click spring 20
4 in the moving direction, and the one end engaging portion 199 of the actuating member 197 cannot engage with the lead-in wrap 187. The lead-in wrap 187, which is no longer engaged with the one end engaging portion 199 of the actuating member 197, does not turn over and continues to move as the pickup gear 185 rotates while remaining stationary. Then, the lead-in wrap 187 engages with the projections 134 of the pickup plate 123! Therefore, the lead-in operation of the tone arm 8 is prohibited. When the play 17 unit 2 further slides in the counter-Y direction and reaches the predetermined position, the block 215 fixed to the housing 3 moves the actuating member 197 as shown in FIG.
The actuating member 197 is pressed and returns to its original rest position. Further, when the play 17 unit 2 starts the storage operation and reaches a predetermined position just before the storage is completed, the actuating member 197
A protrusion 212 provided on one side 201 of the two-pronged branch part engages with the other end engaging part 211 of the leaf spring 210, but the rotation of the actuating member 197 in one direction of the release product is restricted by the protrusion 205. Since the plate spring 210 is bent, this engagement is released. Thus, as shown in FIG.
Only the operation of ejecting the disk 16 to the outside of the housing 3 is performed, and the disk 16 is recovered. In addition, as shown in FIG. 21 (0), pre list 7T
Immediately after the 1st unit 2 is stored in the housing 3 and the lead-in operation of ○ is performed to the 1st unit 1 in this state, 1st
When the 1-ding button 260 is pressed, the 1-ding arm ε3 returns to the next position along with the rotation of the pick-up gear 85, and the playback y, T
The L parts 1 and 2 are projected out of the housing 3 (state +j+ in FIG. 21). ;k /, :, When the state e-1 to button 261 in FIG. 2'1(0) is pressed, the tone i'·- as shown in FIG. 21(0) is pressed.
Only the return operation of the program 8 is 4T. Incidentally, Fig. 2-1 shows the above in a table, where the first group is (a), mountain), and (C). (Ichisakibi (Figure 01 shows play X7 units 1-2 and 1.-
It shows the state of the engine 118 before operation, especially (C
), (Figure 1 and +e1 show the case where the disk 16 is placed. Also, the n (a
). city), (C1, (elementary and (e) figure corresponding to each +f
+ , (<]) , (I+1. +b and +j+ figures are (a), mountain), (C1, (small and (e) figure +3 and [1-ding button 26
It shows the operating states of play 17 units 1 to 2 and tone ar\8 when 0 is pressed. Also, the 1st IT
denoted as if and (a), mountain), (cl, (
(k) which corresponds nominally to the small and (ej diagrams. (+1.
+b), (C1, < small and (01) In the state shown in Fig.
The operating states of ~2 and 1~-n are shown. As described in detail above, in the automatic performance type 1' disk player according to the present invention, the disk presence/absence discrimination mechanism is purely mechanical, and most of the disk presence/absence discrimination mechanism is made of sheet metal or the like. (Since it is constructed from relatively inexpensive members, it is possible to reduce the overall space of the play λ.

[Brief explanation of the drawing]

Figure '1(a) and crest) are schematic perspective views of embodiments of the present invention;
Fig. 2 is a plan view of the internal structure of the embodiment of the present invention, Fig. 3 is a partially detailed plan view of the internal structure, Fig. 4 is a partial side view of the internal structure, and Fig. 5 is a plan view of the timing cam. Figures 6, 7 and 8 are partially detailed plan views of the internal structure, and Figure 9
Figures 10, 11, and 12 show the protruding storage situation of the play-7 units. Figures 1, 13, 14,
Figures 15, 16, and 17 show the movement of the footrest collar and its surrounding parts; Figures 18(a) and 18(c) show the lead-in operation; Figure 19 (al and mountain) A diagram showing a state in which the lead-in is blocked by the beam-doin prevention means, Figure 20 (a), mountain), (C
1. (Ichi and (e) are diagrams showing the situation in which C lead-in is prohibited by the lead-in prohibition means, and Figures 21 (a) or 0) show each operation of the play unit and tone arm. This is a diagram. Explanation of symbols of main parts 1...Body 2...-Sire%y:l, Knit 3...Housing 4.
...Slide base 5 ...Motor
6... Turntable 7, 12, 22, 4
4,55,61,85,90.101.107.128
．． 160171.186,198,234,269...
...Shaft 8...1 to -n arm 9...Output shaft 10...Small gear 11...Claw 13...missing Tooth section 14...Main gear section 15...Main gear 16...
Disc 18... Swinging arm 19...
...Large gear part 20...Small gear part 21...
...Planet gear 23.200...N through hole 25...Follow gear part 26.27...
・Rack gear 28...Rack member 29, 30, 31, 32, 190...Bending portion 3
3.34... Gap 39... Lower end protrusion 40...) J ID groove 45...
・・Click lever 46.64, 88.104.105
．． 106.109.118.134.13J 141.
149, 153.154.163.173.188,2
02,205,212,216,222.226,22
8,229,254,279... Protrusion 47.4
8,215...Block 49, 50.69...
...Other end 51.148,204...Click spring 52.
...Switching biasing means 56...Switching lever 57.63.110.162.199...One end engaging portion 5g, 65, 119, 132, 150...・
・Coil spring 59... Upper end protrusion 62... Lock lever 70, 246... Trigger 74, 152, 164, 211... Other end engaging part 75 ...Timing cam 78,79...Shaft part 80...Pin 81 for detecting disk e position...
...Detection unit 82, 87.103.135.139.140.174
．． 227.236.237.23Jl. 25! i, 273, 274...Engaging portion 8G...
...Detection plate 91...Start-up 92.
...Start-up 93...Slide plate 911.97.115.116.130,235...
...Bin 95...Heart-shaped cam groove 96.114...Guide hole 102...Intermediate lever 113...: ]nt [1-Role plate 117, 151
．． 165, 223, 280...medium elongated hole 123...
・・Go to pickup play 1 124 ・・・ ・・・
ff, /l:1) bar-129...
Latch stopper 131... Pannock 133... Lead-in prevention means 146...
...S [tsu 1 means 147... Reset I plate 161...
...Detection lever 170...Intermediate gear 112...Rack section 17:1...Arper section 17G...
...Horizontal section 177...] Nilevation cam 178...Elevation sea 1-179...
...Damper 180...Protruding engagement portion 1
85...Pickup gear 187...Lead-in latch 189...Fixing member 191...Groove 192210.247...Plate spring 193...
...Engagement means 197...Operating member 20
1...one side 203...other side 2
09... Screw 220... Switch locker 221... Switch 224...
... Actuator 225 ... Pressing part 233
...Rest lever 239...Cam part 244.24! i... Guide member 248...
...Support member 250...Connection part 253
...Repeat member 259...Front surface 260...1-1-ding button 261...
...Star I~ button 262...Libby 1~button 263...Enter capotan 2G4...Turntable rotation speed setting button 2
66... Door 270... Index cam 271...
...[]-ra 272...Tip engaging portion 27
8...Relet Lever Applicant PaiAnia Co., Ltd. Agent Patent Attorney Motohiko Fujimura (a) Figure 1 (b) Figure 11 Figure 12 Figure 19 (b) Figure 20 (a) (b ) Figure 20 (C) (d) Procedure'? 1 Summer ljF Self (Method) 1. Display of the case 1982 Patent Application No. 197295 2, Title of the invention Automatic presentation type disc play 17 3, Person making the amendment Relationship to the case Special V1 Applicant Address 1-4-1 Meguro, Meguro-ku, Tokyo Name
(501) Pioneer Corporation 4, Agent 10
4 Address: 3-10-9-6, Ginza, Chuo-ku, Tokyo, Column 7 of ``Brief explanation of one drawing of the specification subject to amendment'', [(al or +(1) Delete J.

Claims (1)

[Claims] The automatic performance disc player includes a turntable and a tone arm, a command signal generating means for generating a command signal, a main gear that rotates once in response to the command signal nj, and a main gear that rotates the tone arm by one rotation of the main gear. The autoplay mechanism has a one-play mechanism that performs a lead-in operation or a return operation. It includes a disc 1 non-discrimination mechanism that prohibits the lead-in of the tone arm when the tone arm is not in use, and the disc presence/absence determination mechanism is arranged between a disc placement detection pin provided on the turntable and the first and second rotation positions. a detection plate for detecting the presence or absence of a disc that is rotatably provided at the second rotational position and that can engage with the bin when the disc is not placed in the second rotational position; and a slide plate that reciprocates once for each rotation of the main gear. an intermediate lever rotatably supported on the slide plate and capable of engaging with the detection plate in the second rotational position; and (1) the intermediate lever in the engaged state with the detection plate. (operating control plate and said controller)
16. A self-playing disc player comprising: a lead-in prevention means which is released by the activation of the 1-rule plate and prevents the tone arm from being lead-in.