JP3996143B2 - Disk unit - Google Patents

Description

  The present invention relates to a disk device for reproducing information stored on a disk, and more particularly to a disk device mounted and used on a movable object such as an automobile.

  This type of disk device tends to cause sound skipping due to the vibration of a movable object. Therefore, conventionally, a suspension chassis equipped with a playback mechanism having a pickup for reading disc information and a turntable on which the disc is mounted is set in a floating state during playback, and a main chassis (fixed chassis) during non-playback. The suspension is locked by suspension locking means (see, for example, Patent Document 1).

  Further, a movable plate having a turntable and a pickup is attached to one side of the box-type chassis (fixed chassis) and a partition plate partitioning the inside of the box-type chassis via a damper, and engagement plates provided on both sides of the movable plate. The movable plate is fixed to the box-type chassis during non-reproduction by engaging one side of the box-type chassis with the engaging pin of the moving plate provided on the partition plate (see, for example, Patent Document 2). .

Japanese Patent Laid-Open No. 11-312352 (paragraph 0063, FIGS. 14 to 16) JP-A-5-2812 (paragraphs 0020-0024, FIG. 1, FIG. 6-12)

  As shown in FIG. 35, the conventional disk device includes a movable part 702 having a turntable 701 and a pickup (not shown), and a fixed chassis 703 for fixing the movable part, and a support plate for the movable part 702. 704 has both side surfaces bent in the thickness direction, and four engaging portions 705 are provided on both side surfaces. As described above, when the engaging portion 705 protruding in the thickness direction is provided on the movable plate side, the thickness of the support plate 704 is increased, which is disadvantageous in reducing the thickness and increasing the size of the apparatus. In the figure, “a” indicates the upper vibration-proof stroke, “b” indicates the thickness of the reproducing unit, and “c” indicates the lower vibration-proof stroke.

  The present invention has been made to solve the above-described problems, and can fix and release the movable part reliably without increasing the thickness of the movable part, thereby saving the space and the apparatus. It is an object of the present invention to obtain a disk device that can achieve the overall size reduction.

The disc device according to the present invention is a reproducing unit having a reading means for reading stored information on a disc and a turntable on which the disc is placed, and a circuit for supporting the reproducing unit and for evacuating out of the moving area of the disc during non-reproduction. In a disk device comprising a movable support portion and a lock portion provided on the side of the support portion facing the playback portion so as to lock the playback portion, the lock portion rotates with respect to the support portion. A first lock member having arms extending in opposite directions at both ends of the attachment portion to be attached and having a locking portion formed at the tip of the arm; and an attachment portion for attaching one end to the support portion so as to be rotatable. And a second lock member having a lock portion at the other end, and a gear portion that engages with each other is formed on the peripheral surface of the attachment portion of the first and second lock members .

  According to the present invention, the lock unit that locks the reproduction unit is provided on the side of the rotatable support unit that supports the reproduction unit and retreats outside the moving area of the disc when not reproducing, on the side facing the reproduction unit. Therefore, the lock portion provided on the fixed support portion only needs to lock a part of the movable reproduction portion, and it is not necessary to provide a special part for locking in the reproduction portion. As a result, with a simple configuration, it is possible to reliably prevent the vibration of the reproduction unit, and the thickness of the support unit can be included in the thickness of the reproduction unit, saving space and reducing the overall size of the device. There is an effect that can be achieved.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing the reproducing unit support plate and the supporting plate separately, FIG. 2 is a plan view showing a state in which the supporting plate is locked to the reproducing support plate, and FIG. FIG. 4 is a plan view showing a state in which the lock part is released, FIG. 5 is a plan view showing a state in which the lock part is released, and FIG. 5 is a reproduction part support plate and a lock part provided on the reproduction part support plate. It is a top view which shows the state which unlocked.

  A playback unit 500 having a playback unit 502 includes a playback unit support plate (support unit) 503 and a support plate 504. Both plates have holes 503a and 504a provided at one end on a bottom plate (not shown) of the housing. It fits on the upright shaft 110 and is rotatably attached between the retracted position and the reproduction position.

The reproduction unit support plate 503 is formed with a cam groove 503b that engages with a pin for applying rotational force, and shock absorbers 503c are provided on both sides of the tip and on the rotating shaft side. A notch groove 503d that engages with a disk centering positioning member (not shown) provided on the bottom plate of the housing is formed in the vicinity of the tip. Further, on the side of the playback unit support plate 503 facing the playback unit 502, a lock unit for locking the playback unit is formed.
This lock portion has arms extending in opposite directions at both ends of an attachment portion that is rotatably attached to the reproducing portion support plate 503 by a rotation shaft 505b, and a locking portion 505c is formed at the tip of the arm. And a second lock member 506 having one end attached to the reproduction unit support plate 503 so as to be rotatable by a rotation shaft 506b and having a locking portion 506c formed at the other end. Further, the locking portions 505c and 506c are bent in the thickness direction (in the direction of the support plate) by about 90 degrees from the first and second locking members 505 and 506, and the tip shape thereof is as shown in FIG. It has a U-shape with a wide taper on the opening side. The height of each taper portion is set to be equal to or greater than the amount of shock absorption (a) defined according to the design. Further, the narrowest portion of the locking portion is set to be close to the thickness (b) or more of the support plate so as to be fitted with a notch provided on the support plate. Further, gear portions 505a and 506a that are engaged with each other are formed on the peripheral surfaces of the mounting portions of the first and second lock members 505 and 506, respectively. A notch groove 503d that engages with a disk centering positioning member (not shown) provided on the bottom plate of the housing is formed in the vicinity of the tip.

  The support plate 504 has a hole 504b that engages with the upper portion of the shock absorber 503c on both sides of the tip and on the rotation shaft side, and a turntable 507 that rotates a disk placed near the tip. Is provided. The turntable 507 is provided on the axis of a disk type motor 512a provided on a circuit board (not shown). A reading unit 513 (pickup) is provided for reading the stored contents of the disk by moving between the tip end portions from the rotating shaft side.

  Moreover, the vertical bent pieces (not shown) on both sides of the rotation axis side of the support plate 504 are vertically supported by the shaft 508c on the turntable 507 side. ing. A clamper 508a that presses and holds the disk on the turntable 507 is swingably supported at the tip of the clamp plate 508, and a coil spring 509 that presses the clamper 508a against the turntable 507 is provided at the rear end of the clamp plate 508. It has been.

  Further, at the corresponding portions of the support plate 504 with which the engagement recesses 505c and 506c of the lock members 505 and 506 are engaged, the engaged engagement recesses 505c and 506c are within the width (horizontal plane) of the reproduction unit 502. Thus, a notch 504d is formed.

Next, the operation will be described.
When the reproducing unit 502 is attached to the disk device, the locking members 505 and 506 are rotated to a position where they enter the horizontal plane of the reproducing unit support plate 503 as shown in FIGS. The recesses 505 c and 506 c engage with the side edge of the support plate 504, and the reproduction unit 502 is fixed integrally with the support plate 503. Further, since the turntable height is higher than the upper end of the locking portion when locked, the height of the locking portion does not contribute to the thickness of the entire reproducing unit 502. That is, the thickness of the reproducing unit support unit can be included in the thickness of the reproducing unit.

  Then, depending on the operation mode of the disk device, when the reproducing unit 502 moves to the reproducing position and the disk is placed on the turntable 507, the clamp plate 508 is released from the restriction and the urging force of the coil spring 509 turns the turntable 507. And the disk is pressed and held by the clamper 508a.

  Following the release of the restriction of the clamp plate 508, the lock members 505 and 506 are rotated as shown in FIGS. 1, 4, and 5 to release the lock so that they are disengaged from the projection plane of the reproduction unit 502. The reproducing unit 502 is held only by the shock absorber 503c to be in a reproduction state. After the reproduction is completed, the locked state shown in FIGS. 2 and 3 is entered again, and the reproducing unit 502 is retracted out of the disk conveyance path.

  As described above, according to the first embodiment, the playback unit is supported on the side facing the playback unit of the rotatable playback unit support unit that supports the playback unit and retracts outside the moving area of the disc when non-playing. Since the support plate 504 has a cutout portion 504d at the outer edge, the reproduction portion has the first and second lock members 505 and 506 cut out of the support plate 504. Since it is locked to the reproducing unit support plate 503 by fitting with the portion 504d, the thickness of the support plate 504 can be reduced as shown in FIG. 37, which is advantageous in reducing the thickness of the apparatus. Further, it is not necessary to provide the playback unit 502 with a special part for locking. Moreover, although the latching | locking part of the 1st and 2nd locking member is extended in a thickness direction on fitting relation, since the height of the turntable mounted in the support plate is higher than the height of the above-mentioned latching part upper end, As shown in FIG. 37, it does not contribute to the thickness of the reproducing part. As a result, the vibration of the reproducing unit can be surely prevented with a simple configuration, and the thickness of the reproducing unit supporting unit can be included in the thickness of the reproducing unit, saving space, and the entire apparatus Can be reduced in size and thickness.

  Since the first and second lock members are rotated in the horizontal plane during disk reproduction, and the lock is released so as to be disengaged from the support plate projection surface, the engaging portions of the first and second lock members Does not affect the amount of shock absorption (a). Accordingly, further reduction in the thickness of the reproducing unit can be expected, space saving can be achieved, and the overall size of the apparatus can be reduced.

  In addition, since the reproduction unit has a configuration in which a notch portion in which the lock unit enters the horizontal plane of the reproduction unit is provided at a position where the lock unit is locked, the lock unit may protrude to the side of the reproduction unit when locked. Therefore, it is not necessary to increase the retracted position area, which is extremely effective for downsizing the entire apparatus.

Hereinafter, an example of a disk apparatus to which the present invention is applied will be described with reference to the drawings.
6 is an external perspective view of the apparatus main body 100, FIG. 7 is a perspective view showing the inside of the casing 101 with the top plate 102 removed, FIG. 8 is a plan view of FIG. 7, and FIG. It is a perspective view which shows the state which removed 101a.

  Inside the housing 101, a drive unit 200, a disk insertion / ejection unit 300, a disk changer unit 400, and a playback unit 500 are provided, and a number of cams are provided to operate these units in relation to each other. A lever or the like is provided. Each part will be described below with reference to FIGS.

Drive unit 200
The drive unit 200 includes a motor 201 as a drive source disposed at the back corner of the bottom plate 101e of the housing 101, a first rotating body 203 to which the power of the motor 201 is supplied via a gear train 202, and a first rotating body 203. Two rotating bodies 204 are provided. The first rotating body 203 is formed with a spiral cam groove 203a, and the second rotating body 204 is formed with four cam grooves 204a, 204b, 204c, and 204d that are independent from each other. The gear train 202 and the first and second rotating bodies 203 and 204 are rotatably supported by the bottom plate 101e of the housing 101.

  The cam groove 204 a has an intermediate portion and both end portions formed in a concentric circular arc shape with the second rotating body 204, and a connecting portion connecting both the portions is formed in the radial direction of the second rotating body 204. As shown in FIG. 33, a pin 205a provided at an intermediate portion of an L-shaped first mechanical drive lever (hereinafter abbreviated as a first drive lever) 205 disposed under the second rotating body 204. Engages with the cam groove 204a, and one end of the first drive lever 205 is rotatably supported by a shaft 205b provided on the bottom plate 101e of the housing 101.

  The cam groove 204b is formed in a semicircular arc shape with a radius substantially the same as that of the cam groove 204a on the side opposite to the cam groove 204a. A pin 310a provided at an intermediate portion of a second mechanical drive lever (hereinafter abbreviated as a second drive lever) 310 as a shutter drive lever disposed under the second rotating body 204 is a cam groove 204b. One end of the second drive lever 310 is rotatably supported by one gear shaft in the gear train 202.

  The cam groove 204c is formed in a semicircular arc shape so that one end side is the outer peripheral side of the second rotating body 204 and the other end side is the center side of the second rotating body. Then, a pin 213a provided at an intermediate portion of the sensor driving lever 213 disposed under the second rotating body 204 is engaged with the cam groove 204c, and one end of the sensor driving lever 213 is connected to the bottom plate of the housing 101. It is rotatably supported by a shaft 213b provided in 101e.

  The cam groove 204d is formed in a semicircular arc shape around the axis of the second rotating body 204, and is bent from the middle so that one end side thereof approaches the axis. A pin 510a provided at an intermediate portion of a third mechanical drive lever (hereinafter referred to as a third drive lever) 510 disposed on the second rotating body 204 engages with the cam groove 204d, One end of the third drive lever 510 is rotatably supported by a shaft 510 b provided on the bottom plate 101 e of the housing 101.

  A pin 205b provided at the free end of the first drive lever 205 is engaged with a long hole 206a of a slide plate 206 that translates along the rear plate 101c of the housing 101. The cam grooves 206b, 206c, 206d, and 206e are formed, and an L-shaped cam groove 206f is formed on the rising surface of the slide plate 206 that is bent at a right angle. The rotation lever 207 has a column body 207a that engages with the cam groove 206b, and a disk detection plate 207b on the top of the column body 207a.

  On the other hand, a lever 208 having a pin 208a that engages with the L-shaped cam groove 206f is rotatably supported by the rear plate 101c of the housing 101. The lever 209 is connected to one end of the lever 207 through a pin 207c and an elongated hole 209a. The L-shaped lever 210 has an intermediate portion connected to the lever 209 by a rotating shaft 210a, a pin 210b provided at one end thereof is engaged with the groove 206e, and a pin 210c provided at the other end is bent by the slide plate 211. It is engaged with the bifurcated portion 211a.

  The slide plate 211 is provided so as to slide along the inner surface of the right side plate of the housing 101, and the slide plate 212 having the engaging portion 212 a that engages with the upper edge recess 211 b is the inner surface of the right side plate of the housing 101. It is provided to slide along. The slide plate 212 has a rack 212b and a bifurcated engagement portion 212c bent at a substantially right angle toward the inside of the housing.

Disc insertion / extraction unit 300
The disc insertion / ejection unit 300 includes a cam plate 301 that moves left and right along the inner surface of the housing front plate 101a. The cam plate 301 is formed with two cam grooves 301a and 301b on the left and right. The two shutters 302R and 302L have pins 302a and 302b that engage with the cam grooves 301a and 301b, respectively, and can be rotated so as to open and close a disk insertion / extraction port 303 formed in the front panel 101a. It is supported on the inner surface of the front plate.

  Also, a base plate 314 is provided above the disk insertion / extraction opening 303 so as to protrude inward from the inner surface of the housing front plate 101a. The base plate 314 has linear guide grooves 314a to 314 at both ends. 314c and an L-shaped guide groove 314d are formed. A disc transport plate 315 is disposed below the base plate 314. The pins 315a to 315c provided on the upper surface of the disc transport plate 315 are passed through the guide grooves 314a to 314c, and the upper end portions thereof are caulked and removed. The disk transport plate 315 is suspended and supported by the base plate 314. An arc-shaped recess 315d that escapes the outer shape of the disk is formed at the center of the disk transport plate 315.

  A rotating lever 316 is attached to both ends of the disk conveying plate 315 by a shaft 316a. A disk conveying roller 317 is provided between the rotating levers 316 in parallel with the shaft 316a. An interval formed by the disc transport roller 317 coincides with the disc insertion / extraction port 303. Further, a power transmission gear 318 is provided on the shaft 317a of the disk conveying roller 317 protruding outside from one rotating lever 316, and a motor 319 attached to the gear 318 inside the housing right side plate 101b is provided. The gear train 320 that transmits the rotational force of the gears is engaged with the gear train 320. Further, the rotation lever 316 is provided with a guide pin 321 together with the gear 318, and the guide pin 321 is engaged with a cam groove 101g formed on the housing right side plate 101b.

  In addition, a lock lever 322 is rotatably supported on the upper surface of the disk transport plate 315 on the side where the gear train 320 is attached, and a pin 322 a provided on the lock lever 322 is an L-shape of the base plate 314. A bifurcated engaging portion 212 c of the slide plate 212 is engaged with a pin 322 b provided on the lock lever 322. Further, the rack portion 212 b formed on the slide plate 212 meshes with one gear in the gear train 320.

Disc changer unit 400
The disc changer unit 400 includes three disc vertical moving bodies (hereinafter referred to as rotating shafts) 401, 402, and 403 at angular positions of approximately 0 °, 90 °, and 180 °. It is supported between. The rotary shafts 401, 402, and 403 are formed with small-diameter portions 401b, c, 402b, c, 403b, and c that can store a predetermined number (for example, five) of disks 450 in the upper and lower portions. Stepwise spiral grooves 401a, 402a, and 403a are formed on the outer peripheral surface of the intermediate large-diameter portion, respectively.

  In this case, the step-like spiral grooves 402a and 403a of the rear rotation shafts 402 and 403 have the same shape, but the step-like spiral groove 401a of the front rotation shaft 401 has a step H2 as shown in FIG. The shift from H to H3 is faster than the rotation shafts 402 and 403 on the back side, and with this configuration, the front side of the disk held at the timing when this step changes quickly becomes downward from the back side. The rotary shafts 401, 402, and 403 have gears 401d, 402d, and 403d at their upper ends, respectively, and one large-diameter gear 404 is engaged with the gears 401d, 402d, and 403d. In FIG. 34, H1 represents the playback unit entry height, H2 represents the disc chucking height, and H3 represents the playback unit retreat height. Further, M1 represents a playback unit entry mode, M2 represents a disk chucking mode, M3 represents a playback unit withdrawal mode, and M4 represents a disk insertion / ejection mode.

  The stocker 405 that supports the disk 450 is formed of a semi-arc-shaped sheet material that lacks the majority including the center, and the support members 406, 407, 408 is attached. Guide pins 409, 410, and 411 arranged in the vicinity of the rotation shafts 401, 402, and 403 are passed through the protrusions 406 a, 407 a, and 408 a that protrude outward from the support member 406, 407, and 408. Pins 406c, 407c, and 408c that engage with the holes 406b, 407b, and 408b and the spiral grooves 401a, 402a, and 403a of the rotation shafts 401, 402, and 403 are provided. In addition, mounting arms 407d and 407e of stocker leaf springs 215a and 215b are provided on the protruding portion 407a.

  With this configuration, the large-diameter gear 404 is rotated by receiving the driving force of the motor 418 via the gear train 419, so that the rotary shafts 401, 402, 403 are simultaneously rotated via the gears 401d, 402d, 403d, The stocker 405 moves up and down along the spiral grooves 401a, 402a, and 403a. In the process of this vertical movement, the disc held by the stocker 405 due to the difference between the step-like spiral grooves 402a and 403a of the above-described rear-side rotation shafts 402 and 403 and the step-like spiral grooves 401a of the front-side rotation shaft 401. There are times when the front side of 450 is facing down.

  On the other hand, a gear 412 that meshes with the large-diameter gear 404 close to the disc insertion port 303 side, a gear 413 that meshes with the gear 412, and a rock that has a pin 414 a engaged with an 8-shaped cam groove 413 a formed in the gear 413. The movable lever 414 is connected to the swing lever 414 via a pin 414b, and has a slide plate 415 that slides left and right along the housing front plate 101a, and a cam groove 416a that engages with the pin 415a of the slide plate 415. In addition, a slide plate 416 that slides up and down along the housing front plate 101a and a rotation plate 417 having a bifurcated portion 417a that engages with a pin 416b of the slide plate 416 at one end are provided.

  The gears 412, 413 and the swing lever 414 are supported by the top plate 102, and the slide plate 415 has pins 415b provided at the left and right ends thereof engaged with the horizontal elongated holes 420a of the housing front plate 101a. Further, the pin 416a provided on the slide plate 416 is engaged with a vertical elongated hole 420b formed in the housing front plate 101a.

A gear train 422 that connects the gear 310b provided at the tip of the second drive lever 310 and the gear 421b provided at the lower portion of the disc guide member 421 is provided on a rotating bearing plate 423 that is pivotally supported by the housing bottom surface 101e. Yes. Further, the rotating plate 417 is rotatably supported by the vertically bent piece of the rotating bearing plate 423.
The disk guide member 421 includes a shaft portion 421c having a gear 421b and an outer cylinder 421d fitted therein. The disk guide member 421 includes a clamping piece 421a that clamps a disk on the upper surface of the outer cylinder 421d, and a lower surface of the outer cylinder 421d. A pin 417b projecting from a rotating plate 417 is engaged with the portion, and the disk guide member 421 is provided so as to be rotatable and vertically movable by this configuration.

Playback unit 500
The playback unit 500 is rotatably supported by a shaft 110 provided at one end of the reproducing unit 500, and the planted pin 501b is engaged with the cam groove 203a of the first rotating body 203. 501 and a playback unit 502 that is driven from the retracted position outside the disk area to the disk playback position by the rotating lever 501. The reproduction unit 502 includes a reproduction unit support plate 503 and a support plate 504, and both plates are rotatably attached by fitting holes 503a and 504a provided at one end to the shaft 110 standing on the bottom plate 101e of the housing 101. ing.

  The reproducing unit support plate 503 is formed with a cam groove 503b that engages with the pin 501c provided on the rotating lever 501, and shock absorbers 503c are provided on both sides of the distal end and the base end. . A notch groove 503d that engages with the disk centering positioning member 103 provided on the bottom plate 101e of the housing 101 is formed near the tip. Further, the lock members 505 and 506 having gears 505a and 506a meshing with each other are supported on the reproducing unit support plate 503 so that the vicinity of the gears can be rotated by the rotation shafts 505b and 506b. Engagement portions 505c and 506c having engagement recesses are vertically bent at the free ends of the lock members 505 and 506.

  The support plate 504 is formed with holes 504b that engage with the upper part of the shock absorber 503c on both sides and the base end of the front end portion, and a turntable 507 is provided in the vicinity of the front end to place and rotate the disk. ing. The turntable 507 is provided on the axis of a disk-type motor 512 a provided on the circuit board 512. A reading unit 513 (pickup) for reading the stored contents of the disk 450 by moving between the base end portion and the tip end portion is provided.

  Further, vertical bent pieces 508a on both sides of one end of the clamp plate 508 are supported on the vertical bent pieces 504c on both sides of the base end portion of the support plate 504 so as to be movable up and down by shafts 508c. A clamper 508a that presses and holds the disk on the turntable 507 is supported in a swingable manner, and a coil spring 509 that presses the clamper 508a against the turntable 507 is provided at the rear end of the clamp plate 508.

  A drive lever 511 that slides along the inner surface of the left side surface of the housing is connected to the tip of the third drive lever 510 by a pin 510c and a long hole 511a, and a lock operation cam groove 511b is formed on the upper surface of the slide member 511. A cam groove 511c for disc chucking operation is formed. Then, the pin 505d provided on the lock member 505 is engaged with the cam groove 511b for the lock operation, the drive plate 512 of the clamp plate 508 and the connecting plate 513 are swingably connected, and the pin provided on the connecting plate 513 514 is engaged with a cam groove 511c for disc chucking operation.

Next, the operation will be described.
Operation from Disc Insertion to Playback First, a switch (not shown) is closed to start the motor 201, and the first and second rotating bodies 203 and 204 are rotated via the gear train 202. Due to the rotation of the second rotating plate 204, the second drive lever 310 engaged with the cam groove 204b rotates in the direction of arrow A, and by this rotation, the intermediate lever 311 rotates in the direction of arrow B, and the cam plate 301 is moved in the direction of arrow C. By this movement, the shutters 302R and 302L in which the pins 302a and 302b engage with the cam grooves 301a and 301b of the cam plate 301 rotate in the directions of arrows D and E, respectively, to open the disc insertion port 303.

  At this time, as shown in FIG. 12, the reproducing unit 500 is retracted out of the area where the disk moves, the disk transport plate 315 is at the back side of the housing 101, and the stocker 405 is at the disk transport height. Only the stocker portion that engages with the spiral groove 401a of the rotating shaft 401 close to the disk insertion port 303 at the facing position is lowered to the reproduction retracted height.

  In this state, when the sensor 309 detects a disk inserted from the disk insertion slot 303, the motor 319 is activated in response to this detection signal, and the roller 317 is driven to rotate via the gear group 318. As a result, the disk is guided to the inside of the housing 101 while the upper and lower surfaces are guided by the disk transport plate 315 and the stocker 405 and the left and right sides are guided by the rotating shaft 401 and the side wall 508c of the clamp plate 508. The mode detection of the second rotating body 204 is performed by engaging the sensor driving lever 213 engaged with the cam groove 204c of the second rotating body 204 by the pin 213a and the forked portion 213b at the tip of the sensor driving lever 213. This is performed by the position sensor 214 having a pin 214a.

  When the inserted disc 450 is conveyed to a predetermined position, as shown in FIG. 14, the disc detection plate 207b is pushed by the disc and rotates in the direction of arrow F, and the switch lever 209 is moved to the arrow G via the lever 207. The switch 214 is closed by rotating in the direction.

  By the subsequent rotation of the second rotating body 204 by driving the motor 201, the second drive lever 310 is rotated in the direction of arrow A ′, the intermediate lever 311 is rotated in the direction of arrow B ′, and the cam plate 301 is moved in the direction of arrow C. Then, the shutter 302R, 302L is protruded into the disc insertion path, and the disc insertion slot 303 is closed.

  On the other hand, when the motor 418 is started based on the closing signal of the switch 214, the rotary shafts 401, 402, and 403 rotate via the gear group 419, the large diameter gear 404, and the gears 401d, 402d, and 403d. As shown in FIG. 16, the height of the disc insertion side of the stocker 405 is set to the disc via the protrusions 406c, 407c, and 408c of the support member engaged with the spiral grooves 401a, 402a, and 403a of the respective rotating shafts 401, 402, and 403. Return to transport height.

  At the same time, the gear 412 rotates, and the swing lever 414 having the pin 414a that engages with the 8-shaped cam groove 413a of the gear 413 that meshes with the gear 412 rotates in the arrow H direction. As shown in FIG. 15, the disk guide member 415 is raised in the arrow M direction to the disk conveyance height by the rotation of the arrow J in the arrow, the arrow K in the slide plate 416, and the rotation in the arrow L in the rotation plate 417.

  Then, by the subsequent rotation of the second rotating body 204 by the drive of the motor 201, the disk detection plate 207b is moved to the arrow F by the rotation of the first drive lever 205 in the arrow N direction and the movement of the slide plate 206 in the arrow P direction. Rotate and retract in the direction. Further, the stocker leaf spring 215a pressed against the disc 20 stocker by the movement of the slide plate 206 in the arrow P direction, the lever 208 in the arrow Q direction, the L-shaped lever 210 in the arrow R direction, and the slide plate 211 in the arrow S direction. 215b is released, and the slide plate 212 is brought into contact with and pressed by the slide plate 211.

  As a result, as shown in FIGS. 17 and 18, the slide plate 212 moves by a certain amount in the direction of the arrow T, and the locking member 322 is rotated in the direction of the arrow U by the bifurcated engagement portion 212c. The engagement with the groove 314d is released. At the same time, the second drive lever 310 is rotated in the direction of arrow A, and the disk guide member 421 is rotated in the direction of arrow f via the gear train 422, so that the clamping piece 421a of the disk guide member 421 is shown in FIG. To support the disk 450. When the motor 319 is activated, the slider plate 212, which is pushed and moved by the slide plate 211 and the rack 212 b meshes with one gear in the gear train 320, receives the driving force of the motor 319 and then receives the disk transport plate 315. Is moved to the disc insertion slot side (arrow V direction).

  On the other hand, due to the subsequent rotation of the motor 418, the rotation of the rotary shafts 401, 402, and 403 via the gear group 419, the large diameter gear 404, and the gears 401d, 402d, and 403d causes the stocker 405 to move as shown in FIG. Rise to the intrusion height. At the same time, the gear 412 rotates, and the swing lever 414 having the pin 414a engaged with the 8-shaped cam groove 413a of the gear 413 engaged with the gear 412 rotates in the arrow H direction. As shown in FIG. 20, when the disc guide member 421 supports the disc by the rotation of the arrow 415 in the direction 415, the arrow K in the direction of the slide plate 416, and the arrow L in the direction of the rotation L 417, the playback unit entry height Rise to

  The rotating lever 501 is rotated in the direction of arrow W by the spiral cam groove 203a of the first rotating body 203 driven via the motor 201 and the gear train 202, and the cut groove 503d of the reproducing unit support plate 503 is formed. By engaging with the positioning member 103, the axis of the turntable 507 coincides with the axis of the disk held by the stocker 405 as shown in FIG.

  By the rotation of the reproduction unit support plate 503, the support plate 504 disposed on the support plate comes into contact with the disk guide member 421, and the rotation bearing plate 423 is rotated in the arrow Z direction, so that the reproduction unit entry position is reached. Thus, the disk guide member 421 is retracted. At this time, the clamp plate 508 is in a non-chucking state.

  As the motor 418 further rotates and the rotation shafts 401, 402, and 403 rotate through the gear group 419, the large-diameter gear 404, and the gears 401d, 402d, and 403d, as shown in FIG. Decreases to the chucking height (disc transport height). At the same time, the rotation of the gear 412 causes the swing lever 414 having the pin 414a engaged with the 8-shaped cam groove 413a of the gear 413 engaged with the gear 412 to rotate in the direction of the arrow H ′, and the slide plate by this rotation As shown in FIGS. 24 and 20, the disk guide member 421 is moved in the direction of the arrow M ′ by rotating the arrow 45 ′ in the direction of arrow 45 ′, the arrow K ′ in the direction of the slide plate 416, and the arrow L ′ in the direction of the rotation plate 417. The disk 450 is lowered to the chucking height, and the disk 450 is placed on the turntable 507.

  By the motor 201, the gear train 202, and the cam groove 204d of the second rotating body 204, the lever 510 is rotated in the arrow a direction, the slide member 511 is moved in the arrow b direction, the connecting plate 513 is rotated in the arrow c direction, As the clamp plate 508 moves in the direction of the arrow d of the drive plate 512, the rotation prevention member (not shown) of the clamp plate provided on the drive plate 512 releases the rotation prevention. As shown in FIG. 25, the clamper 508a presses the disk against the turntable 507 and chucks it as shown in FIG.

  Further, by the subsequent rotation of the second rotating body 204 by driving the motor 201, the first drive lever 205 is moved in the arrow N ′ direction, the slide plate 206 is moved in the arrow P ′ direction, the lever 208 is moved in the arrow Q ′ direction, L As shown in FIG. 26, the stock lever springs 215a and 215b are abutted and pushed up by the movement of the letter-shaped lever 210 in the direction of the arrow R ′ and the slide plate 211 in the direction of the arrow S ′ to retract from the disk. At the same time, the second drive lever 310 is rotated in the direction of arrow A ′, and the disk guide member 421 is rotated in the direction of arrow f ′ via the gear train 422. As shown in FIG. Remove support.

  The motor 418 further rotates, and the rotation of the rotary shafts 401, 402, and 403 through the gear group 419, the large diameter gear 404, and the gears 401d, 402d, and 403d, and as shown in FIG. Go down. At the same time, the gear 412 rotates, and the swing lever 414 having the pin 414a that engages with the 8-shaped cam groove 413a of the gear 413 that meshes with the gear 412 rotates in the direction of the arrow H ′. By rotating the slide plate 416 in the arrow J ′ direction, the slide plate 416 in the arrow K ′ direction, and the rotation plate 417 in the arrow L ′ direction, as shown in FIG. Descent to the end and evacuate from the disc to be played.

  Further, the lever 510 is rotated in the direction of the arrow a by the motor 201, the gear train 202, and the cam groove 204d of the second rotating body 204, and the slide member 511 is moved in the direction of the arrow b, so that the lock members 505 and 506 are moved to the arrow. Rotating in the g and h directions, the support plate 504 is unlocked as shown in FIG.

Operation from reproduction to disk ejection The lever 510 is rotated in the direction of arrow a ′ by the motor 201, the gear train 202, and the cam groove 204d of the second rotating body 204, and the slide member 511 is moved in the direction of arrow b ′. The lock members 505 and 506 are rotated in the directions of arrows g ′ and h ′ to lock the support plate 504 as shown in FIG.

  By driving the motor 418, the rotating shafts 401, 402, and 403 are rotated via the gear group 419, the large-diameter gear 404, and the gears 401d, 402d, and 403d. Rises to the height of chaking. At the same time, the gear 412 rotates, and the swing lever 414 having the pin 414a that engages with the 8-shaped cam groove 413a of the gear 413 that meshes with the gear 412 rotates in the arrow H direction. As shown in FIG. 28, the disc guide member 421 rises to the disc chucking height in the direction of arrow M, as shown in FIG.

  Rotation of the second rotating body 204 by driving of the motor 201, rotation of the lever 205 in the direction of arrow N, movement of the slide plate 206 in the direction of arrow P, rotation of the lever 208 in the direction of arrow Q, L-shape By rotating the lever 210 in the arrow R direction and moving the slide plate 211 in the arrow S direction, the stocker leaf springs 215a and 215b are released from contact with each other and brought into contact with the disk. At the same time, the second drive lever 310 is rotated in the direction of arrow A ′, and the disk guide member 421 is rotated in the direction of arrow f ′ via the gear group 416. As shown in FIG. Give support.

  Further, by the motor 201, the gear train 202, and the cam groove 204d of the second rotating body 204, the lever 510 is rotated in the direction of arrow a, the slide member 511 is moved in the direction of arrow b, and the connecting plate 513 is moved in the direction of arrow c '. As a result of the rotation and movement of the drive plate 512 in the direction of arrow d ′, the clamp plate 508 rises in the direction of arrow e ′ against the spring force of the coil spring 509, and the clamper 508b is detached from the disk as shown in FIG. .

  As the motor 418 further rotates and the rotation shafts 401, 402, and 403 rotate through the gear group 419, the large-diameter gear 404, and the gears 401d, 402d, and 403d, as shown in FIG. Increases to the intrusion height of the playback unit. At the same time, the rotation of the gear 412 causes the swing lever 414 having the pin 414a engaged with the 8-shaped cam groove 413a of the gear 413 engaged with the gear 412 to rotate in the direction of arrow H, and the slide plate 415 due to this rotation. As shown in FIG. 24, the disk guide member 421 rises in the direction of arrow M to the playback unit intrusion height by rotating the arrow J in the direction of the arrow, the arrow K in the direction of the slide plate 416, and the direction of the arrow L in the direction of the rotation plate 417. Remove the disc from the fitting part of the turntable 507.

  The revolving unit support that supports the entire reproducing unit by rotating the rotating lever 501 in the direction of arrow W ′ by the spiral cam groove 203a of the first rotating body 203 driven through the motor 201 and the gear train 202. As shown in FIGS. 23 and 22, the plate 503 is rotated to a position where it is retracted outside the disk storage area. By the retraction rotation of the reproducing unit support plate 503, the rotation bearing plate 423 rotates in the direction of the arrow Z ', and the disc guide member 421 returns to the initial position.

  As the motor 418 further rotates and the rotation shafts 401, 402, and 403 rotate through the gear group 419, the large diameter gear 404, and the gears 401d, 402d, and 403d, the stocker 405 is lowered to the conveyance height as shown in FIG. To do. At the same time, the rotation of the gear 412 causes the swing lever 414 having the pin 414a engaged with the 8-shaped cam groove 413a of the gear 413 engaged with the gear 412 to rotate in the direction of the arrow H ′, and the slide plate by this rotation As shown in FIG. 20, the disk guide member 421 supports the disk by the rotation of the arrow J ′ direction of 415, the arrow K ′ direction of the slide plate 416, and the arrow L ′ direction of the rotation plate 417, as shown in FIG. 'Down to the transport height in the direction.

  As the motor 319 rotates, the slider plate 212 is moved in the arrow T ′ direction via the gear group 320 as shown in FIG. 18, and the disk transport plate 315 is moved to the front of the housing 101 until the lock member 322 is locked. Move to the back side. With this movement of the slide plate 212, the rotation plate 316 is rotated in the direction of the arrow l ′ when the pin 321 moves along the groove 101g of the right side surface 101b of the housing, and the gear provided on the disc transport roller shaft. 318 engages with the gear train 320.

  The rotation of the second rotating body 204 driven by the motor 201 causes the lever 205 to move in the arrow N ′ direction, the slide plate 206 to move in the arrow P ′ direction, the lever 208 in the arrow Q ′ direction, and the L-shaped lever 210 arrow. By the movement of the slide plate 211 in the R ′ direction and the arrow S ′ direction, the contact and push-up of the stocker leaf springs 215a and 215b and the contact with the slide plate 212 are released.

  As a result, the slide plate 212 moves to the initial position in the direction of the arrow T ′, and the lock member 322 is rotated in the direction of the arrow U ′ by the bifurcated engagement portion 212 c to enter the locked state. At the same time, the second drive lever 310 is rotated in the direction of the arrow A ′, and the disk guide member 421 is rotated in the direction of the arrow f ′ via the gear train 422, so that the disk is supported by the holding piece 421a as shown in FIG. To release. Further, the rotation restriction of the disc detection plate 207b is removed by the movement of the slide plate 206 in the arrow P 'direction.

  As the motor 418 further rotates and the rotation shafts 401, 402, and 403 rotate through the gear group 419, the large-diameter gear 404, and the gears 401d, 402d, and 403d, the front side of the stocker 405 is engaged as shown in FIG. The part height drops to the retreat evacuation height. At the same time, the rotation of the gear 412 causes the swing lever 414 having the pin 414a engaged with the 8-shaped cam groove 413a of the gear 413 engaged with the gear 412 to rotate in the direction of the arrow H ′, and the slide plate by this rotation As shown in FIG. 16, the disc guide member 421 is lowered to the retracted height by the rotation in the direction of arrow J ′ 415, the direction of arrow K ′ in the slide plate 416, and the direction of arrow L ′ in the rotation plate 417.

  By rotating the second rotating body 204 by driving the motor 201, the second drive lever 310 is rotated in the direction of arrow A, the intermediate lever 311 is rotated in the direction of arrow B, and the cam plate 301 is moved in the direction of arrow C. As shown in FIG. 11, the shutters 302 </ b> R and 302 </ b> L are released from the disk transport path to open the disk insertion slot 303.

The motor 319 rotates and the disk transport roller 317 rotates through the gear group 320 to eject the disk. When the disc is ejected from the insertion slot 303 to a predetermined position, a sensor (not shown) detects this ejection and stops the motor 319, resulting in the state shown in FIG.
Disc changer operation

Disc Changer Operation With the above-described operation, the playback unit 500 is rotated from the playback position to the retracted position, and the disc guide member 421 is returned to the initial position. Thereafter, by the rotation of the second rotating body 204, the second drive lever 310 is rotated in the direction of arrow A ′, the disc guide member 421 is rotated in the direction of arrow f ′ via the gear train 422, and the holding piece 421a. Release disk support by. At the same time, the rack member 424 that meshes with one gear of the gear train 422 moves in the direction of the arrow j, and the gear member 425a of the rotation member 425 meshes with the rack member 424. As shown in FIG. 31, the disk rises in the direction of the arrow K, and prevents the disk from protruding from the stocker 405 in contact with the peripheral surface of the disk.

  The motor 418 further rotates, and the stocker 405 moves to a desired height by the rotation of the rotation shafts 401, 402, and 403 via the gear group 419, the large diameter gear 404, and the gears 401d, 402d, and 403d.

  The rotation of the second rotating body 204 driven by the motor 201 rotates the second drive lever 310 in the direction of arrow A, and the rack member 424 that meshes with one gear of the gear train 422 moves in the direction of arrow j ′. A rotating member 425 having a gear portion 425a meshing with the rack member 424 is rotated and retracted in the direction of the arrow k ′ by the movement of the rack member. At the same time, through the rotation of the gear train 422, as shown in FIG. 32, the disc guide member 421 rotates in the direction of the arrow f 'to support the disc.

  When reproducing, the reproducing unit 500 is rotated to a position where the axis of the turntable 507 coincides with the axis of the disk by the above-described operation, the selected disk is placed on the turntable 507, and the disk 450 is loaded. Chucking is performed, the stocker leaf springs 215a and 215b are retracted from the disk, the reproduction unit 502 is unlocked, and the reproduction operation is started.

It is the perspective view which isolate | separated and showed the reproduction | regeneration part support plate and the support plate. It is a top view which shows the state which locked the reproduction | regeneration part support plate to the support plate. It is a top view which shows the locked state of the lock plate which removed the reproduction | regeneration part and was provided in the reproduction | regeneration part support plate. It is a top view which shows the state which released the reproducing part from the reproducing part support plate. It is a top view which shows the state which removed the reproducing part and the lock | rock board provided in the reproducing part support plate 51 does not lock. It is an external appearance perspective view of an apparatus main body. It is the perspective view which removed the top plate from the housing | casing and showed the inside. FIG. 8 is a plan view of FIG. 7. It is a perspective view which shows the state which removed the front plate of the housing | casing. It is the top view which removed the top plate and showed the inside of a case. It is a perspective view from the apparatus right rear. It is a right side view of the device shown with the side plate removed. It is a perspective view from the apparatus left rear. It is a perspective view from the apparatus right front. It is a perspective view from the apparatus left rear. It is a right side view of the device shown with the side plate removed when the disk is placed. It is a perspective view from the apparatus left rear. It is a perspective view from the apparatus right rear. It is the top view which removed the top plate and showed the inside of a housing | casing. It is a perspective view from the apparatus left rear. It is a right side view of the device when the playback unit is inserted. It is the top view which turned the reproduction | regeneration unit to the reproduction | regeneration position and showed the inside of a housing | casing. It is a perspective view from the apparatus right rear. It is a perspective view from the apparatus right front. It is a perspective view from the apparatus left rear. It is a perspective view from the apparatus right rear. It is the top view which showed the inside of the housing | casing in the reproduction | regeneration state. It is a perspective view from the apparatus right front. It is a right side view of the device in a reproduction state. It is the top view which removed the top plate and showed the inside of a housing | casing. It is a perspective view from the apparatus left rear. It is a perspective view from the apparatus left rear. It is a top view which shows the relationship between the cam groove of a 2nd rotary body, and the lever which this cam groove engages. It is an expanded view of the spiral groove which moves a stocker up and down. It is a schematic diagram which shows the structure which provided the engaging part in the support plate of the movable part. It is an enlarged view of a latching | locking part. It is a schematic diagram which shows the structure which locks the support plate of a movable part with the engaging part provided in the lock member.

Explanation of symbols

  450 disc, 502 playback unit, 505, 506 lock member (lock means), 507 turntable, 513 pickup (read means).

Claims (2)

A reproducing unit comprising a reading means for reading stored information on the disc and a turntable on which the disc is mounted; a rotatable supporting unit that supports the reproducing unit and retracts outside the moving area of the disc when not reproducing; And a lock unit provided on the side of the support unit facing the playback unit so as to lock the playback unit , wherein the lock unit is pivotally attached to the support unit at both ends of the mounting unit. A first locking member having an arm extending in the opposite direction and having a locking portion formed at the tip of the arm, and a locking portion at the other end formed as a mounting portion that is pivotably attached to the support portion. And a second locking member, and a gear portion that engages with each other is formed on the peripheral surface of the mounting portion of the first and second locking members . Reproducing unit, a disk apparatus according to claim 1, wherein the engaging portion is engaging portion at a position for locking is characterized in that a notch into the horizontal plane of the reproducing unit.

Images