+

WO1999016065A1 - Mecanisme permettant d'animer le tiroir et l'unite d'entrainement des tourne-disques a un seul moteur - Google Patents

Mecanisme permettant d'animer le tiroir et l'unite d'entrainement des tourne-disques a un seul moteur Download PDF

Info

Publication number
WO1999016065A1
WO1999016065A1 PCT/KR1998/000283 KR9800283W WO9916065A1 WO 1999016065 A1 WO1999016065 A1 WO 1999016065A1 KR 9800283 W KR9800283 W KR 9800283W WO 9916065 A1 WO9916065 A1 WO 9916065A1
Authority
WO
WIPO (PCT)
Prior art keywords
tray
pinion
driving unit
driving
lifting
Prior art date
Application number
PCT/KR1998/000283
Other languages
English (en)
Inventor
Hag-Ryeol Kim
Original Assignee
Daewoo Electronics Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1019970047882A external-priority patent/KR19990025984A/ko
Priority claimed from KR1019970047892A external-priority patent/KR19990025994A/ko
Priority claimed from KR1019970047891A external-priority patent/KR19990025993A/ko
Priority claimed from KR1019970047885A external-priority patent/KR19990025987A/ko
Priority claimed from KR1019970047893A external-priority patent/KR19990025995A/ko
Priority claimed from KR1019970047881A external-priority patent/KR19990025983A/ko
Application filed by Daewoo Electronics Co., Ltd. filed Critical Daewoo Electronics Co., Ltd.
Publication of WO1999016065A1 publication Critical patent/WO1999016065A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
    • G11B17/041—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs contained within cartridges
    • G11B17/043—Direct insertion, i.e. without external loading means
    • G11B17/0432—Direct insertion, i.e. without external loading means adapted for discs of different sizes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
    • G11B17/041—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs contained within cartridges
    • G11B17/044—Indirect insertion, i.e. with external loading means
    • G11B17/047—Indirect insertion, i.e. with external loading means with sliding loading means
    • G11B17/0473—Indirect insertion, i.e. with external loading means with sliding loading means adapted for discs of different sizes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
    • G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
    • G11B17/053—Indirect insertion, i.e. with external loading means
    • G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
    • G11B17/0565—Indirect insertion, i.e. with external loading means with sliding loading means adapted for discs of different sizes

Definitions

  • the present invention relates to a mechanism for moving a tray and a driving unit of disk players, more particularly to a mechanism for moving a tray and a driving unit of multi- compact disk players driven by a single motor, by which the tray is ejected from and is loaded into a chassis and the driving unit is lifted.
  • a conventional multi-compact disk player selects one of the disks loaded therein, and reproduces data from the selected compact disk (hereinafter, referred to as a CD) by an optical pick up device.
  • a multi-CD player consists of a number of members as shown in FIGS. 1 and 2.
  • a tray 120 is movably installed on a chassis 100.
  • a roulette 140 for placing a number of CD is mounted on an upper face of the tray 120. The roulette 140 can be rotated at a predetermined angle to select a predetermined CD depending on an external output .
  • a chucking plate 160 for chucking the center of the selected CD in a play mode is installed at an upper side of the roulette 140.
  • a driving unit 180 is mounted at a lower side of the chucking plate 160 in the chassis 100.
  • the driving unit 180 has an optical pick up device (not shown in figures) for reproducing data from the CD. To reproduce data from the selected CD, the driving unit 180 is lifted toward the chucking plate 160. The selected CD is chucked between the driving unit 190 and the chucking plate 160 and is rotated by a motor.
  • the optical pick up device reproduces data from the selected CD.
  • the tray feeding part for ejecting the tray 120 from the chassis 100 and for loading the tray 120 to the chassis 100, a driving unit lifting part for ascending and descending the driving unit 180, and a roulette driving part for rotating the roulette 140.
  • the tray feeding part consists of a rack 210, a feeding motor 230, a reduction gear 250, a feeding gear 270, and a toggle switch 290.
  • the rack 210 has a predetermined length and is installed at a side of the bottom face of the tray 120.
  • the feeding motor 230 provides a driving power for moving the tray 120.
  • the reduction gear 250 propagates the driving power of the feeding motor 230 to the feeding gear 270.
  • the feeding gear 270 is engaged with the rack 210, and feeds the tray 120 depending on the rotation of the feeding motor 230.
  • the toggle switch 290 is switched by a pushing portion 275 formed on the feeding gear 270 according to a position of the tray 120.
  • the feeding motor 230 is controlled according to the state of the toggle switch 290.
  • the driving unit lifting part has a lifting motor 310 for providing the power to ascend and descend the driving unit 180, a driving gear 330 engaged with the lifting motor 310, a cylindrical cam 350 engaged with the driving gear 330, and a second toggle switch 370 installed at a side of the cylindrical cam 350.
  • a number of threads are formed on the peripheral of the cylindrical cam 350, and are engaged with protrusions (not shown in figures) protruded from one side of the driving unit 180.
  • the toggle switch 370 detects a lifting position of the driving unit 180 according to the rotation of the cylindrical cam 350, and controls the lifting motor 310.
  • the other side of the driving unit 180 is connected to the chassis 100 by a hinge portion.
  • the roulette driving part had a roulette motor 147 for providing a power to rotate the roulette 140 and engaged with a roulette gear 145 formed at the bottom face of the roulette 140.
  • a conventional multi-compact disk player as described above operates as follows.
  • unshown control part rotates the feeding motor 230 in the counter-clock direction according to an ejecting signal from the exterior.
  • the driving power of the feeding motor 230 propagates to the reduction gear 250 by a belt.
  • the feeding gear 270 rotates in the counter-clock direction by the reduction gear 250, and is engaged to the rack 210.
  • the tray 120 is ejected from the chassis 100. That is, the roulette 140 is also ejected from the chassis 100.
  • the pushing portion 275 turns on the toggle switch 290.
  • the turn on signal of the toggle switch 290 is provided to the control part.
  • the control part instructs the feeding motor 230 to stop.
  • the user places a number of CDs on the roulette 140 installed at the tray 120.
  • the loading mode is to load the roulette 140 placing on a number of CDs and the tray 120 into the inner space of the chassis 100.
  • the loading mode starts by providing a loading signal from the outside to the control part or by lightly pushing the tray 120 into the inner space of the chassis 100.
  • the pushing portion 275 switches the toggle switch 290 to turn off.
  • the control part drives the feeding motor 230 to rotate in the clockwise direction depending on the turning off signal of the toggle switch 290. According to the clockwise rotation the feeding motor 230, the feeding gear 270 is rotated in the clockwise direction and starts to engage with the rack 210. Therefore, the tray 120 moves in the horizontal direction and is loaded toward the inner space of the chassis 100.
  • the tray 120 places upper the driving unit 180, and the roulette 140 places under the chucking plate 160.
  • the control part drives the roulette motor 147.
  • the roulette motor 147 rotates the roulette gear 145.
  • the roulette 140 is rotated by the roulette gear 145, and then the predetermined CD is selected.
  • the selected CD is placed between the driving unit 180 and the chucking plate 160.
  • the control part drives the lifting motor 310 to rotate.
  • the driving power of the lifting motor 310 propagates into the cylindrical cam 350 via the driving gear 330.
  • the driving unit 180 engaged with the cylindrical cam 350 ascends about a hinge shaft. According to the ascent of the driving unit 180, the selected CD is chucked between chucking plate 160 and the driving unit
  • the chucked CD is rotated by an unshown motor, and the optical pick up device reproduces data from the selected CD.
  • a conventional multi-compact disk player has a feeding motor for providing the feeding power of the tray and a lifting motor for providing the lifting power of the driving unit in separate. That is, as a number of motors are rotated, a CD receiving portion is joggled, and thus multi- compact disk player has low reliability of reproducing true- sound. Also, the conventional multi-compact disk player is complicated because a number of gears are engaged between the feeding motor and the tray or between the lifting motor and the driving unit. Therefore, a numerous construction members and the assembling procedures are required, increasing the manufacturing cost.
  • First object of this invention is to provide a mechanism for moving a tray and a driving unit in which the tray and the driving unit are moved by a single motor.
  • Second object of this invention is to provide a mechanism for moving a tray and a driving unit to remove the complex vibration caused by the use of a number of motors.
  • a mechanism for moving a tray and a driving unit by a single motor comprises: a driving motor installed at a chassis and for providing a feeding power to the tray to eject or load and for providing a lifting power to the driving unit to ascend or descend; a pinion drum having a power transmission part for propagating the power from the driving motor, a driving pinion formed at an upper side of the driving transmission part and having teeth with a length corresponding to a lifting angle y proportional to an ascending distance for lifting the driving unit, and a tray pinion formed at an upper side of the driving pinion and having teeth with a length corresponding to a feeding angle ⁇ proportional to a loading distance of the tray; a tray feeding part engaged with the tray pinion and for ejecting or loading the tray from the chassis according to the rotation of the pinion drum; and a driving unit
  • the driving-teeth formed at a lifting angle y and the tray gear teeth formed at a feeding angle ⁇ lie in piles as equal to a lifting angle y .
  • the tray feeding part has a first and second rack gears formed with a predetermined length at the rear face of the tray for engaging with the tray pinion, a switching protrusion protruding from the rear face of the second rack gear, and a switch for detecting the tray to arrive at the open position in the ejecting mode.
  • the driving unit lifting part has a rack rod engaged with the drive pinion, a lifting plate having lifting-guide grooves for providing the lifting path of the driving unit by engaging with protrusions protruding from the driving unit and for fixing the rack rod thereon, and a switch mounted at a predetermined position, in the moving direction of the lifting plate, on the chassis for detecting the driving unit to arrive at the chucking position.
  • the driving power transmission part is a pulley connected with the driving motor by a belt.
  • the drive pinion has a driving unit locking portion successively formed with the last tooth of the drive teeth and having a radius same as a radius of an addendum circle of the drive teeth at a straight angle and a releasing portion successively formed with the driving unit locking portion and having a radius same as a radius of a deddendum circle of the drive teeth.
  • the rack rod returns to an initial position by a return-spring.
  • the return-spring has one end fixed at the chassis and the other end fixed at the rack rod.
  • a mechanism for moving a tray and a driving unit by a single motor comprises: a driving motor installed at a chassis and for providing a feeding power to a tray to eject or to load and for providing a lifting power to a driving unit to ascend or to descend; a pinion drum having a power transmission pinion for engaging with the driving motor by reduction-gears, a driving pinion formed at an upper face of the power transmission pinion and having teeth with a length corresponding to a lifting angle proportional to an ascending distance for lifting the driving unit, and a tray pinion formed at an upper face of the driving pinion and having teeth, with a length corresponding to a feeding angle proportional to a loading distance of the tray, separately formed and spaced apart from the drive teeth by a predetermined angle ⁇ ; a tray feeding part having a first and second feeding pinions mounted at both sides of the pinion drum for engaging with the tray pinion and rack gears mounted at a rear face of the tray for respectively engaging with the feeding teeth by a predetermined angle ⁇ ;
  • a mechanism for moving a tray and a driving unit by a single motor comprises: a driving motor installed at a chassis and for providing a feeding power to the tray to eject or load and for providing a lifting power to the driving unit to ascend or descend; a pinion drum having a driving pinion having teeth with a length corresponding to a lifting angle proportional to an ascending distance for lifting a driving unit, a power transmission pinion formed at an upper face of the driving pinion and connected to the driving motor by reduction-gears, a reversing pinion formed at an upper face of the power transmission pinion and having teeth with a length corresponding to a loading angle proportional to a loading distance of the tray, and a tray pinion formed at an upper face of the reversing pinion and having teeth with a length corresponding to an ejecting angle proportional to an ejecting distance of the tray; a tray feeding part engaged between the tray pinion and a rack formed at a rear face of the tray and
  • the tray feeding part has a tray gear engaging between the tray pinion and the rack and for ejecting the tray from the chassis and for loading the tray into the chassis, and a reversing gear engaging between the reversing pinion and the tray gear after the tray gear disengages with the tray pinion and for loading the tray into the chassis and for ejecting the tray from the chassis.
  • the driving unit lifting part has lift-guiding plates respectively connected to both sides of the driving unit and for providing the lift path to the driving unit, a unit-lever pivotally mounted at the chassis and having both ends respectively connected with the lift-guiding plates and a guiding post protruding from an upper face of the unit-lever, and a driving-gear having a guiding groove for providing the moving path of the guiding post and teeth engaged with the driving pinion.
  • a single motor drives the tray to eject from and to load into the chassis and the driving unit to ascend and to descend. Therefore, the mechanism for moving a tray and a driving unit by a single motor according to the present invention prevents the disk player from complex vibrating caused by use of two motors and achieves a low manufacturing cost.
  • the mechanism for moving a tray and a driving unit by a single motor improves the stability and reliability of operating conditions of disk players by the removal of a number of gearing connections .
  • FIG. 1 is a perspective view showing a general multi- compact disk player
  • Fig. 2 is a plan view schematically showing a conventional multi-compact disk player
  • Fig. 3 is a plan view schematically showing a mechanism for moving a tray and a driving unit by a single motor according to a first preferred embodiment of the present invention
  • Fig. 4 is a schematical view of a pinion drum and a driving motor according to the first preferred embodiment of the present invention
  • Fig. 5A is a rear view showing the pinion drum and a rack rod according to a second preferred embodiment of the present invention.
  • Fig. 5B is a plan view showing a lifting plate of the mechanism for moving a tray and a driving unit by a single motor according to embodiments of the present invention
  • Fig. 6 is a plan view showing a mechanism for moving a tray and a driving unit by a single motor according to a third preferred embodiment of the present invention.
  • Fig. 7 is a plan view showing a pinion drum and a tray feeding gear according to the third preferred embodiment of the present invention
  • Fig. 8 is a plan view schematically showing a mechanism for moving a tray and a driving unit by a single motor according to a fourth preferred embodiment of the present invention
  • Fig. 9 is a plan view schematically showing relation between tray feeding gears and a pinion drum and relation between driving unit lifting gears and the pinion drum according to the fourth preferred embodiment of the present invention.
  • Fig. 10 is a vertical sectional view showing the pinion drum according to a fourth preferred embodiment of the present invention.
  • FIG. 11 is a plan view showing a driving unit lifting mechanism according to the fourth preferred embodiment of the present invention.
  • a multi-compact disk player comprises a tray 120 movably installed at a chassis 100.
  • a roulette 140 for placing a number of CDs is mounted on an upper face of the tray 120 and can be rotated at a predetermined angle.
  • a chucking plate 160 for chucking a selected CD in a play mode is installed at an upper side of the roulette 140.
  • a driving unit 180 is mounted at a lower side of the chucking plate 160 in the chassis 100 for ascending and descending, and reproduces data from a selected CD.
  • a mechanism for moving a tray and a driving unit by a single motor is to feed the tray 120 into the chassis 100 and to lift the driving unit 180, and to chuck the selected CD.
  • the mechanism for moving the tray and the driving unit has a driving motor 410 installed at the chassis 100.
  • the driving motor 410 generates a driving power according to an external input signal or a mode selecting signal.
  • the driving motor 410 rotates a pinion drum 400 by its driving power.
  • the pinion drum 400 has a power transmission part, a driving pinion 430, and a tray pinion 440.
  • the driving pinion 430 is formed on an upper face of the power transmission part and has teeth formed at a lifting angle y proportional to a lifting distance of the driving unit 180.
  • the tray pinion 440 is formed at an upper face of the driving pinion 430 and has teeth with a length corresponding to a feeding angle ⁇ proportional to a loading distance of the tray 120.
  • the driving-teeth formed at the lifting angle y and the tray gear teeth formed at a feeding angle ⁇ lie in piles as equal to the lifting angle y .
  • the driving power transmission part is a pulley 420 connected with the driving motor 410 by a belt 423.
  • the driving power transmission part is a power transmission pinion for engaging with the driving motor by reduction-gears.
  • the pinion drum 400 is engaged with a tray feeding part 450 for ejecting the tray 120 from the chassis 100 and for loading the tray 120 into the chassis 100.
  • the tray feeding part 450 has a first and second rack gears 453, 455, a switching protrusion 457, and an open-detecting switch 459.
  • the rack gears 453, 455 are formed with a predetermined length at a rear face of the tray 120 for engaging with the tray pinion 440.
  • the switching protrusion 457 protrudes from a rear face of the second rack gear 455 at a loading position of the tray 120.
  • the open-detecting switch 459 is installed on the chassis 100 closed by an inlet of the chassis 100, in the same direction of the switching protrusion 457. In an ejecting mode, the switching protrusion 457 turns on the open-detecting switch 459 when the tray 120 is arrived to an open position.
  • the driving unit lifting part 460 has a rack rod 461, a lifting plate 463, and a chucking-detecting switch 469.
  • the rack rod 461 is mounted at the lifting plate 463, and is engaged with the drive pinion 430.
  • the lifting plate 463 has lifting-guide grooves 465 for engaging with a number of protrusions 185 protruding from a front face of the driving unit 180. Each of the lifting-guide grooves 465 is formed in letter "S".
  • the chucking-detecting switch 469 is installed at a predetermined position on the chassis 100 in moving direction of the lifting plate 463, and is turned on when the driving unit 180 is arrived at a chucking position.
  • the drive pinion 470 further comprises a driving unit locking portion 436 and a releasing portion 438 as shown in FIG. 5A.
  • the driving unit locking portion 436 is successively formed with the last tooth of the drive teeth in a rotating direction (indicated by an arrow) of the pinion drum 400 and has a radius the same as a radius of an addendum circle of the drive teeth at a straight angle.
  • the releasing portion 438 is successively formed with the driving unit locking portion 436 and has a radius the same as a radius of a deddendum circle of the drive teeth.
  • the rack rod 461 returns to an initial position by a return-spring 466.
  • the return-spring 466 has one end fixed at the chassis 100 and the other end fixed at the rack rod 461.
  • a pinion drum 500 has a power transmission pinion 525, a driving pinion 530, and a tray pinion 540.
  • the power transmission pinion 525 is engaged with the driving motor 410 by reduction-gears 424, 427.
  • the driving pinion 530 is formed at an upper face of the power transmission pinion 525 and has teeth with a length corresponding to a lifting angle proportional to an ascending distance for lifting the driving unit 180.
  • the tray pinion 540 is formed at an upper face of the driving pinion 530 and has teeth, with a length corresponding to a feeding angle proportional to a loading distance of the tray 120, separately formed and spaced apart from the drive teeth by a predetermined angle ⁇ .
  • the tray feeding part has first and second feeding pinions 550, 560, first and second rack gears 453, 455, and a tray-open switch 459.
  • the first and second feeding pinions 550, 560 are mounted at both sides of the pinion drum 500 for engaging with the tray pinion 540.
  • the rack gears 453, 455 are mounted at a rear face of the tray 120 for respectively engaging with the feeding pinions 550, 560.
  • the driving unit lifting part 460 is installed at a predetermined position closed by the second rack gear 455.
  • the driving unit lifting part 460 has a rack rod 461, a lifting plate 463, and a chucking-detecting switch 469.
  • the rack rod 461 is engaged with the driving pinion 530.
  • the lifting plate 463 has lifting-guide grooves 465 engaged with a number of protrusions protruding from a front face of the driving unit 180 and for providing lifting paths of the driving unit 180.
  • the chucking-detecting switch 469 is mounted at a predetermined position, in the moving direction of the lifting plate 463, on the chassis 100 and provides a control signal to the driving motor 410 when the driving unit 180 arrives at a chucking position.
  • a pinion drum 600 has a driving pinion 610, a power transmission pinion 630, a reversing pinion 650, and a tray pinion 670.
  • the driving pinion 610 has teeth with a length corresponding to a lifting angle y proportional to an ascending distance for lifting a driving unit 180.
  • the power transmission pinion 630 is formed at an upper face of the driving pinion 610 and connected to the driving motor 410 by reduction-gears.
  • the reversing pinion 650 is formed at an upper face of the power transmission pinion 630 and has teeth with a length corresponding to a loading angle ⁇ proportional to a loading distance of the tray 120.
  • the tray pinion 670 is formed at an upper face of the reversing pinion 650 and has teeth with a length corresponding to an ejecting angle ⁇ proportional to an ejecting distance of the tray 120.
  • the teeth of the reversing pinion 650 is formed apart from the teeth of the tray pinion 670 at a predetermined angle ⁇ .
  • the tray feeding part has a tray gear 700 and a reversing gear 750.
  • the tray gear 700 is engaged between the tray pinion 670 and a rack 730 formed at a rear face of the tray 120.
  • the reversing gear 750 is engaged between the reversing pinion 650 and the tray gear 700.
  • the driving unit lifting part has lift-guiding plates 810, 830, a unit-lever 850, and a driving-gear 800.
  • Each of the lift-guiding plates 810, 830 respectively has lifting grooves the same as the lifting-guiding grooves 465 of the lifting plate 463 shown in FIG. 5B.
  • the right lift- guiding plate 810 has first lifting grooves 813 respectively connecting with first protrusions 181 protruding from a right face of the driving unit 180 and a first rod 811 protruding from one side of the right lift-guiding plate 810 for connecting the unit-lever 850.
  • the left lift-guiding plate 830 has second lifting grooves 833 respectively connecting with second protrusions 182 protruding from a left face of the driving unit 180 and a second rod 831 protruding from one side of the left lift-guiding plate 830 for connecting the unit-lever 850.
  • the unit-lever 850 is pivotally mounted at the chassis 100 about a pivoting shaft 852.
  • the unit-lever 850 has both pivot arms. Each of the pivot arms respectively has connecting hole 856.
  • the connecting holes 856 respectively connected with the first rod 811 and the second rod 831.
  • the lift-guiding plates 810, 830 move in opposite direction each other according to the pivot of the unit-lever 850, and thus the driving unit 180 leans to one side.
  • the driving gear 800 has a guide hole 870 for providing a moving path of a guiding post 854 protruding from one side of the unit-lever 850 and teeth engaged with the driving pinion 610.
  • the guide hole 870 is formed at the rear face of the driving gear 800 in spiral shape.
  • the driving motor 410 rotates the pinion drum 400 in the counterclockwise direction.
  • the left rack gear 453 engaged with the tray pinion 440 of the pinion drum 400 is rotated to eject the tray 120 from the chassis 100.
  • the switching protrusion 457 formed on the right rack gear 455 switches on the tray-open switch 459.
  • the tray- open switch 459 is turned off, the rotation of driving motor 410 and the pinion drum 400 stop, and the tray pinion 440 disengages from the rack gear 453 to place the tray 120 in the ejecting position.
  • the user places a number of CDs on the roulette 140 installed at the tray 120, and lightly pushes the tray 120 into the inner space of the chassis 100.
  • the switching protrusion 457 switches the tray-open switch 459 to execute the tray loading mode.
  • the tray-open switch turns off, the electric power is provided to the drive motor 410, and then the pinion drum 400 rotates in the counterclockwise direction.
  • the tray pinion 440 of the pinion drum 400 is engaged with the right rack gear 455, and the tray 120 is loaded into the inner space of the chassis 100. Therefore, the CD placed on the roulette 140 installed in the tray 120 is placed over the driving unit 180.
  • the user rotates the roulette 140, to place the selected CD on the driving unit 180.
  • An unshown control part drives the driving motor 410 for rotating the pinion drum 400 in the counterclockwise direction.
  • the drive pinion 430 is engaged with the rack rod 461, and then the lifting plate 463 moves in the left direction.
  • the protrusions 185 of the driving unit 180 move upwardly along the lift-guiding grooves 465.
  • the control part stops the operation of the driving motor 410 and the pinion drum 400. Therefore, the lifting plate 463 is completely ascended.
  • the driving unit 180 rotates the selected CD, and the play mode for reproducing data from the selected CD by an unshown optical pick up device.
  • the control part drives the driving motor 410 to rotate the pinion drum 400 in counterclockwise direction.
  • the tray pinion drum 400 is engaged with the left rack gear 453, and then the tray 120 is ejected from the chassis 100.
  • the switching protrusion 457 formed on the right rack gear 455 switches the tray-open switch 459.
  • the control part stops to operate the driving motor 410.
  • the pinion drum 400 stop to rotate. That is, the tray 120 is prevented from over-ejecting from the chassis 100.
  • the user then changes CD on the roulette 140 installed at the ejected tray 120, and lightly pushes the tray 120 into the inner space of the tray 120, the tray 120 is loaded into the chassis 100 as described above. Therefore, completing the CD changing mode .
  • the control part drives the driving motor 410 to rotate in clockwise direction in order to engage the driving pinion 430 of the pinion drum 400 with the rack rod 461. That is, the lifting plate 463 moves in the right direction, and the lifting plate 463 switches the chucking switch 469. As a result the optical pick up device of the driving unit 180 does not reproduce data from the selected CD.
  • the driving unit 180 is descended, and the selected CD is dechucked and placed on the roulette 140.
  • the control part rotates the roulette 140 to place the selected CD on the driving unit 180.
  • the control part drives the driving motor 410 for rotating the pinion drum 400 in the counterclockwise direction.
  • the drive pinion 430 engages with the rack rod 461, and the lifting plate 463 is moved in the left direction.
  • the driving unit 180 ascends to chuck the selected CD, and the left end of the lifting plate 463 switches the chucking switch 469 to stop the drive motor 410 from rotating, thus completion of the CD chucking mode.
  • the optical pick up device of the driving unit 180 reproduces data from the selected CD to execute the play mode .
  • the drive motor 410 drive the pinion drum 400 to rotate in the clockwise direction.
  • the drive pinion 430 of the pinion drum 400 is engaged with the rack rod 461, and the lifting plate 463 moves in right direction.
  • the driving unit 180 descends, and then the selected CD is placed on the roulette 140.
  • the tray pinion 440 of the pinion drum 400 is engaged with the right rack gear 455, and the tray 120 ejects from the chassis 100.
  • the operating mechanism for moving a tray and a driving unit of the second preferred embodiment of the present invention operates is similar to the operating mechanism for moving a tray and a driving unit of the first preferred embodiment of the present invention.
  • the right last tooth of the rack rod 461 contacts the driving unit locking portion 436 for resisting the restriction force of the return-spring 466. That is, the driving unit locking portion 436 prevents the return-spring 466 from returning to an initial position.
  • the pinion drum 400 is rotated in the direction of an arrow as shown in FIG. 5A.
  • the right end tooth of the rack rod 461 makes contact with the releasing portion 438 to return the rack rod 461 to an initial position by the restriction force of the return- spring 466.
  • the ejecting mode is executed when the pinion drum 500 sets on the initial position.
  • the control part drives the reduction gear 424 to rotate in the counterclockwise direction by the driving motor.
  • the reduction gear 427 engaged with the reduction gear 424 is rotated in the clockwise direction, and thus the pinion drum 500 is rotated in the counterclockwise direction.
  • the teeth of the tray pinion 540 are engaged with the second feeding pinion 560, and the tray 120 start to be ejected from the chassis 100.
  • the tray opening switch 459 is turned on, and the driving motor 410 stops.
  • the user lightly pushes the front face of the tray 120 into the inner space of the chassis 100.
  • the tray-open switch 459 turns off by the switching protrusion 457, and thus the driving motor 410 rotates the pinion drum 500 in the clockwise direction.
  • the teeth of the tray pinion 540 are engaged with the first feeding pinion 550, and the first feeding pinion 550 is engaged with the first rack gear 453. That is, the tray 120 is loaded into the inner space of the chassis 100.
  • the roulette 140 is rotated by the CD selecting signal, and then the selected CD is placed over the driving unit 180.
  • the driving unit 180 rotates the selected CD, and the optical pick up device reproduces data from the selected CD.
  • the unshown control part drives the driving motor 410 to rotate the pinion drum 500 in the clockwise direction.
  • the tray pinion 540 is engaged with the second feeding pinion 560, and then the second feeding pinion 560 is engaged with the second rack gear 455.
  • the tray 120 is ejected from the chassis 100.
  • the switching protrusion 457 switches the tray-open switch 459.
  • the control part stop to operate the driving motor 410, and then the reduction gears 424, 427, and the pinion drum 500 stop to rotate.
  • the pinion drum 500 stops to rotate, and the tray 120 is prevented from being further ejected from the chassis 100.
  • the user changes CD on the roulette 140 installed at the ejected tray 120.
  • the switching protrusion 457 switches the tray-open switch 459.
  • the driving motor 410 is rotated by the switching signal of the tray-open switch 459 in the direction opposite to the rotating direction in the ejecting mode of the tray 120, and the pinion drum 500 is rotated in the counterclockwise direction.
  • the driving unit 180 ascends by the rotation of the second feeding pinion 560 engaged with the left rack gear 453.
  • the tray 120 is loaded into the inner space of the chassis 100.
  • the control part drives the driving motor 410 to rotate the pinion drum 500 engaged with the reduction gears 424, 427 in counterclockwise direction.
  • the driving pinion 530 is engaged with the rack rod 461, and the lifting plate 463 moves in the left direction.
  • the chucking switch 469 turns off to complete the play mode.
  • the driving unit 180 is descended, and then the selected CD is dechucked and placed on the roulette 140.
  • the control part rotates the roulette 140, and the selected CD is placed over the driving unit 180.
  • the control part drives the driving motor 410 to rotate the pinion drum 500 in the clockwise direction.
  • the lifting plate 463 is moved in the right direction, and the driving unit 180 ascends to chuck the selected CD.
  • the right end of the rack rod 461 turns on the chucking switch 469 to stop the drive motor 410 from rotating.
  • the pinion drum 500 stops to rotate, and the optical pick up device of the driving unit 180 reproduces data from the selected CD.
  • the drive motor 410 drives the pinion drum 500 to rotate in the counterclockwise direction.
  • the drive pinion 530 of the pinion drum 500 is engaged with the rack rod 461, and the lifting plate 463 is moved in left direction.
  • the driving unit 180 descends, and the selected CD is dechucked and is placed on the roulette 140.
  • the tray pinion 540 of the pinion drum 500 is engaged with the second feeding pinion 560, and the tray 120 is ejected from the chassis 100.
  • the switching protrusion 457 switches the tray-open switch 459.
  • the driving motor 410 stops to operate, and then the reduction gears 424, 427 successively operating with the driving motor 410 and the pinion drum 500 stop to rotate. That is, the tray 120 is prevented from over-ejecting.
  • the tray 120 must be ejected from the chassis 100 for placing the CD on the roulette 140.
  • the unshown control part provides the ejecting signal to activate the driving motor 410.
  • the pinion drum 600 is rotated by the driving motor 410 in the same direction of the driveing motor 410.
  • a dependent gear 482 of the reduction gear portion is only engaged with the power transmission pinion 630 of the pinion drum 600, and the tray feeding portion and the driving unit lifting portion are disengaged with the pinion drum 600.
  • the tray pinion 670 is engaged with the tay gear 700, and the tray gear 670 is rotated.
  • the tray gear 700 is engaged with the rack 730 installed on one side of the rear face of the tray 120, and the tray 120 is ejected from the chassis 100.
  • the dependent gear 482 and the tray gear 700 are only engaged with and are successively operated with the pinion drum 600.
  • a protrusion (unshown in figures) protruding from one side of the tray 120 turns on an ejecting switch (unshown in figures) .
  • the driving motor 410 stops to rotate by the turn-on signal of the ejecting switch provided to the control part.
  • the tray pinion 670 is disengaged with the tray gear 700. That is, when the driving motor 410 stops to rotate, the reduction gear portion and the pinion drum 600 stop to rotate, and then the ejecting mode is completed.
  • the ejecting switch turns off and the control part activates the driving motor 410.
  • the driving motor 410 is rotated in the direction same as the rotating direction in the ejecting mode.
  • the driving force of the driving motor 410 is transmitted to the dependent gear 482 via the reduction gear part.
  • the dependent gear 482 is engaged with the power transmission pinion 630 of the pinion drum 600 for rotating the pinion drum 600.
  • the tray gear 700 is rotated in the opposite direction to the rotating direction in the ejecting mode.
  • the tray gear 700 is engaged with the rack 730, and then the tray 120 is loaded.
  • the protrusion (unshown in figures) protruding from a side of the tray 120 turns on the ejecting switch.
  • the control part stop to drive the driving motor 410 by the turn-on signal of the ejecting switch.
  • the reversing pinion 650 is disengaged with the reversing gear 750 to complete the loading mode.
  • control part is stored with initial informations corresponding to the ejecting mode and the loading mode.
  • the ejecting mode and the loading mode as described above need to be re-established in the control part.
  • the control part drives the driving motor 410 according to the ejecting signal and the loading signal, in the direction opposite to the initial rotating direction of the ejecting and loading mode.
  • the reversing pinion 650 is engaged with the reversing gear 750.
  • the reversing gear 750 is engaged with the tray gear 700, and then the tray 120 is ejected from the chassis 100 according to the successive operation of the tray gear 700.
  • the user places a number of changing CD on the roulette 140.
  • the control part drives the driving motor 410 to continuously rotate in the same direction.
  • the pinion drum 600 is rotated by the driving motor 410.
  • the tray pinion 670 of the pinion drum 600 is engaged with the tray gear 700.
  • the tray gear 700 is engaged with the rack 730, and then the tray 120 is loaded.
  • the ejecting mode and the loading mode are coupled each other. Whenever the ejecting mode and the loading mode are re-established, the control part has information about the rotating direction of the driving motor 410 to guide the rotating direction of the driving motor 410 accordingly.
  • the ejecting switch turns off.
  • the control part provides the play-mode signal to the drive motor 410 to rotate.
  • the driving motor 410 rotates in the initial direction of the driving motor 410.
  • the reduction gear part is successively rotated with the driving motor 410, and then the dependent gear 482 is engaged with the power transmission pinion 650.
  • the pinion drum 600 is rotated in the direction same as the direction of the pinion drum 600 in the ejecting mode.
  • the tray pinion 670 is disengaged with the tray gear 700, and the reversing pinion 650 is also disengaged with the reversing gear 750.
  • the drive pinion 610 starts to be engaged with the drive gear 800.
  • a guiding post 854 moves along with a guiding groove 870, and then a unit-lever 850 pivots about a pivot shaft 852.
  • Each of first and second rods 811, 813 respectively protruding from ends of first and second lift-guiding plates 810, 830 is respectively connected to connecting holes 856 formed at both ends of the unit-lever 850.
  • the first and second lift-guiding plates 810, 830 start to slide in both lateral direction of the driving unit 180 according to the pivot of the unit lever 850, and then the protrusions 181, 182 respectively protruding from the both side faces of the driving unit 180 start to slide upwardly along with the lift- guiding grooves 813, 833 respectively formed on the first and second lift-guiding grooves 813, 833.
  • the lift-guiding grooves 813 are formed as letter "S”
  • the lift-guiding grooves 833 are formed as letter "Z”.
  • the first lift-guiding plate 810 and the second lift-guiding plate 830 are slid in opposite direction each other. Therefore, according to the pivot of the unit lever 850, the ascent of the driving unit 180 is slant toward the second lift-guiding plate 830, and chucks the selected CD.
  • an unshown chucking switch turns on by an unshown protrusion formed on the lifting shaft of the driving unit 180, and thus the control part stop the driving motor 410 to operate.
  • the pinion drum 600 and the drive gear 800 stop to rotate, and then the CD chucking mode is complete.
  • the unshown optical pick up device installed at the driving unit 180 reproduces data from the selected CD.
  • the power transmission pinion 630 of the pinion drum 600 is only engaged with the dependent gear 482 during the play mode.
  • the drive pinion 610, the reversing pinion 650, and the tray pinion 670 of the pinion drum 600 are not engaged with any members.
  • the pinion drum 600 rotates once. That is, the pinion drum 600 returns to the initial position.
  • the unshown control part establishes the ejecting mode.
  • the chucking switch turns off, and the driving motor 410 starts to rotate again.
  • the driving motor 410 is rotated in the direction same as the initial ejecting mode.
  • the dependent gear 482 successively operated by the driving motor 410 rotates the pinion drum 600. Therefore, the tray 120 is ejected from the chassis 100 as described above.
  • the control part drives the driving motor 410 to operate in the opposite direction. According to the reversed rotation of the driving motor 410, the rotating direction of the dependent gear 482 is reversed, and the rotation direction of the pinion drum 600 is also reversed.
  • the drive pinion 610 starts to be engaged with the drive gear 800 by the reversing rotation of the pinion drum 600.
  • the guiding post 854 moves along with the guiding groove 870, and the unit lever 850 pivots in reverse direction of the play mode.
  • the lift- guiding plates 810, 830 are slid along both sides of the driving unit 180 in reverse direction of the play mode by the pivot of the unit lever 850.
  • the connecting protrusions 181, 182 are respectively descended along the lift-guiding grooves 813, 833, and then the driving unit 180 moves downwardly.
  • the driving unit 180 reaches to a lower position, the chucking switch turns off.
  • the control part stops the driving motor 410 to operate, and thus the pinion drum 600 and the drive gear 800 also stop to rotate, and the descent of the driving unit is established to complete the play mode.
  • the power transmission pinion 630 of the pinion drum 600 is only engaged with the dependent gear 482 of the reduction gear part.
  • the drive pinion 610, the reversing pinion 650, and the tray pinion 670 of the pinion drum 600 are not engaged with any members.
  • the pinion drum 600 rotates twice. That is, the pinion drum 600 returns to the initial position after the ejecting mode, the loading mode, and at the completion of the play mode .
  • the rotating direction of the driving motor 410 is different from the rotating direction thereof in the initial play mode. That is, the rotating direction of the driving motor 410 is same as the rotating direction thereof in the second ejecting and loading mode .
  • the driving motor 410 reverses.
  • the pinion drum 600 is returned to the initial position thereof after the ejecting and loading mode is completed. Because the tray-open switch turns on at each mode, the driving motor 410 reverses.
  • the driving motor 410 and the pinion drum 600 are initialized after each mode is complete.
  • the mechanism for moving the tray and the driving unit achieves the change of the unselected CD placed on the roulette by ejecting the tray 120, while the data is being simultaneously reproduced from the selected CD.
  • a single motor drives the tray to eject from and to load into the chassis and the driving unit to ascend and to descend. Therefore, the mechanism for moving a tray and a driving unit by a single motor according to the present invention prevents a disk player from complex vibrating caused by use of two motors and achieves low manufacturing cost.
  • the mechanism for moving a tray and a driving unit by a single motor has a rack gear formed at the rear face of the tray.
  • the rack gear is engaged with the tray pinion of the pinion drum rotated by the driving motor.
  • the pinion drum has a drive pinion formed at rear face of the tray pinion and for engaging with the driving unit.
  • the drive pinion is engaged with the rack rod to ascend and descend the driving unit. That is, the pinion drum is rotated by a single motor, and then the tray pinion is engaged with the rack gear.
  • the tray is ejected from the chassis or is loaded from the chassis.
  • the drive pinion is engaged with the rack rod, and the driving unit ascends or descends. Therefore, the CD is chucked or dechucked.
  • CD chucking mechanism is simple in structure, reducing the number of constituent member and assembling steps, to achive a low manufacturing cost.

Landscapes

  • Automatic Disk Changers (AREA)
  • Feeding And Guiding Record Carriers (AREA)

Abstract

Ce mécanisme animant le tiroir et l'unité d'entraînement de tourne-disques utilise un seul moteur pour l'opération de fermeture du tiroir et l'opération de relèvement de l'unité d'entraînement. Le mécanisme comporte un moteur d'entraînement installé sur un châssis, un tambour à pignons entraîné en rotation par le moteur d'entraînement et pourvu d'un pignon de tiroir et d'un pignon moteur réalisés d'un seul tenant, de crémaillères formées sur la face postérieure du tiroir et devant s'engager dans le pignon de tiroir pendant le mouvement du tiroir, et une dent engagée dans le pignon moteur lorsque l'unité d'entraînement remonte et descend. Le tambour à pignons comporte plusieurs pignons faits d'un seul tenant de façon à mouvoir le tiroir et l'unité d'entraînement.
PCT/KR1998/000283 1997-09-20 1998-09-17 Mecanisme permettant d'animer le tiroir et l'unite d'entrainement des tourne-disques a un seul moteur WO1999016065A1 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
KR1019970047882A KR19990025984A (ko) 1997-09-20 1997-09-20 씨디체인저의 씨디척킹구조
KR1019970047892A KR19990025994A (ko) 1997-09-20 1997-09-20 멀티 씨디 플레이어의 구동모터 설치구조
KR1997/47892 1997-09-20
KR1997/47891 1997-09-20
KR1997/47885 1997-09-20
KR1019970047891A KR19990025993A (ko) 1997-09-20 1997-09-20 멀티 씨디플레이어의 구동모터 설치구조
KR1019970047885A KR19990025987A (ko) 1997-09-20 1997-09-20 씨디체인저의 씨디척킹구조
KR1019970047893A KR19990025995A (ko) 1997-09-20 1997-09-20 멀티 씨디플레이어의 구동모터 설치구조
KR1997/47882 1997-09-20
KR1997/47881 1997-09-20
KR1997/47893 1997-09-20
KR1019970047881A KR19990025983A (ko) 1997-09-20 1997-09-20 씨디체인저의 씨디척킹구조

Publications (1)

Publication Number Publication Date
WO1999016065A1 true WO1999016065A1 (fr) 1999-04-01

Family

ID=27555100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1998/000283 WO1999016065A1 (fr) 1997-09-20 1998-09-17 Mecanisme permettant d'animer le tiroir et l'unite d'entrainement des tourne-disques a un seul moteur

Country Status (1)

Country Link
WO (1) WO1999016065A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8015727B2 (en) * 2003-11-11 2011-09-13 Lg Electronics Inc. Dryer rack
US12244929B1 (en) 2022-09-29 2025-03-04 Amazon Technologies, Inc. Device with moveable portion including sensors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261384A1 (fr) * 1986-08-25 1988-03-30 Sony Corporation Appareil pour reproduire des disques de diamètres différents, à charge sélective
EP0450528A2 (fr) * 1990-03-30 1991-10-09 Sanyo Electric Co., Ltd. Lecteur de disques
US5636198A (en) * 1993-05-20 1997-06-03 Goldstar Alps Co., Ltd. Multi-compact disk player

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261384A1 (fr) * 1986-08-25 1988-03-30 Sony Corporation Appareil pour reproduire des disques de diamètres différents, à charge sélective
EP0450528A2 (fr) * 1990-03-30 1991-10-09 Sanyo Electric Co., Ltd. Lecteur de disques
US5636198A (en) * 1993-05-20 1997-06-03 Goldstar Alps Co., Ltd. Multi-compact disk player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8015727B2 (en) * 2003-11-11 2011-09-13 Lg Electronics Inc. Dryer rack
US12244929B1 (en) 2022-09-29 2025-03-04 Amazon Technologies, Inc. Device with moveable portion including sensors

Similar Documents

Publication Publication Date Title
US6169711B1 (en) Technique for controlling motion of disk tray and pickup
KR0137539B1 (ko) 광디스크플레이어의 트레이이송장치(disc tray loading mechanism of optical disc player)
JP2002050165A (ja) ディスク受板とディスク記録及び／又は再生装置
WO1999016065A1 (fr) Mecanisme permettant d'animer le tiroir et l'unite d'entrainement des tourne-disques a un seul moteur
EP0548465B1 (fr) Lecteur de disque laser
US5822290A (en) Disk player having ascending/descending structure for a deck
JPH10162478A (ja) ディスクローディング装置
JP2001236750A (ja) ディスク受板とディスク記録及び／又は再生装置
JP2622335B2 (ja) ディスクプレーヤのトレー移送装置及び該トレー移送装置を有するディスクプレーヤ
WO1999023654A1 (fr) Changeur de disques compacts possedant un mecanisme d'entrainement commande par une seule source d'entrainement
JP2001101754A (ja) ディスクの記録及び／又は再生装置
KR200201697Y1 (ko) 씨디체인저의 트레이와 드라이브유니트 연동구조
JPH11353768A (ja) ディスクプレーヤ
KR100287299B1 (ko) 씨디체인저의 단일모터방식 구동구조
KR20000001574U (ko) 씨디체인저의 트레이 록킹구조
JPH08306114A (ja) ディスクチェンジャー
KR100275883B1 (ko) 디스크 플레이어의 디스크 구동장치
KR200333336Y1 (ko) 저소음구동을위한기록매체재생장치
JP3108980B2 (ja) ディスク演奏装置
KR950010965B1 (ko) 콤팩트 디스크 오토체인저 플레이어
JPH0731391Y2 (ja) テープ再生装置のローディング機構
KR19990025985A (ko) 씨디체인저
KR19990050023A (ko) 씨디체인저의 척킹장치와 구동모터
JP2531641Y2 (ja) マルチディスクプレーヤのディスク取出し位置記憶装置
KR100301084B1 (ko) 씨디체인저의단일모터방식구동구조

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载