KR950012238B1 - Compact disk auto changer player - Google Patents

Abstract

a motor device having a base chassis connected to a main chassis, a printed circuit substrate, a photosensor for sensing a lifting position of a loading assay, a push switch sensing whether a magazine is mounted or not, a driving motor fixed to the base chassis, a deceleration gear for decelerating a driving speed of the driving motor, a pinion engaged with a rack gear of a slide chassis, a first photointerrupt gear for operating the photosensor, and a first friction part for generating a friction stress to the photointerrupt gear; a control device installed between a warm gear mounted in the driving motor and the pinion engaged with the rack gear of the slide chassis and serving as the deceleration gear; and the friction part having a felt disposed in the around of shaft pin for installing the photointerrupt gear of the main chassis, a second photointerrupt gear having a second friction part which frictionizes the felt; a spring for pressing the photointerrupt gear to the friction felt, and a washer and an E ring for supporting and fixing the spring.

Description

Compact Disc Auto Changer Player

1 is a schematic diagram showing the structure of a typical autochanger player.

2 is a configuration diagram of a power unit for elevating a loading assay of a conventional auto changer player.

3 is an enlarged plan view of a slide link of a conventional control means.

4 is a perspective view illustrating an installation state of the present invention.

5 is a plan view illustrating an embodiment of the present invention.

6 is a plan view showing the main portion of the present invention.

Figure 7 is a partial exploded perspective view showing the configuration of the present invention.

8 is a longitudinal sectional view showing a coupling state of the present invention.

* Explanation of symbols for main parts of the drawings

30: main chassis 31: slide long

32: guide hole 40: front chassis

41: slide long 42: elevator

50: rear chassis 51: slide slot

52: elevator 60: front slide chassis

63: guide hole 64: marginal coupling portion

70: rear slide chassis 73: guide slot

80: link plate 90: loading assay

100: base chassis 101: motor

102: worm 103: reduction gear

104: pinion

105: POTO INTERRUPT GEAR

105a: photo interrupt hole 105b: friction surface

106: POTO INTERRUPT

107: Margin hook plate 108: Push switch

109: printed circuit board

110: shaft pin for photo interrupt gear installation

111: felt 112: spring

113: Wassha 114: E-ring

The present invention relates to a compact disc autochanger player equipped with a disc player loaded with a plurality of discs in a disc player, and selectively loaded with a disc to be played on a turntable according to a driver's selection. A loading assay control means for accurately stopping a loading assay at a selected disk position for selecting and loading a loaded disk onto a turntable.

In recent car audio systems, when installing a compact disc player for using a compact disc (CD) capable of playing a higher quality sound, it is equipped with a margin loaded with a large number of compact discs. The auto changer player has been put to practical use.

The general structure of the above-described auto changer player will be described with reference to FIG.

A large number of compact discs are stored and loaded with a compact disc auto changer player, which is then loaded with a number of compact discs to suit the driver's taste.

In this way, a plurality of discs loaded with a margin are mounted on the margin mounting portion of the auto changer player, and the loading assay 1 is moved up and down to search and select a disc to be played, and then the selected disc 3 is pulled out by a pair of takeout rollers. (4a) (4b) rotates and loads to the turntable 5.

When the disc 3 is loaded on the turntable 5 as described above, the loading assay 1 descends, and the clamper 6 mounted on the loading assay 1 is clamped to the disc 3 to be rotated and fixed so that the turntable 5 is rotated. As the c) rotates, the pickup 9 moves to read the record recorded on the disc 3.

In the above configuration, in order to search and select the disk 3 loaded in the margin 2 and to load it on the turntable 5, the loading assay 1 is lifted and stopped at the position of the disk to be correctly selected. You have to.

In order to lift and lower the loading assay 1 as described above, or to pull out the disk 3 by stopping at the correct position, the lifting means for raising and lowering the loading assay 1 should be configured to operate correctly. 1) The power system used for lifting and lowering and the operation of the power system should be controlled accurately.

In order to achieve the above object, Japanese Patent Laid-Open No. 3-230363, as shown in FIGS. 2 to 3, has a drive gear 21 capable of forward and reverse rotation and a slider engaged therewith. The slider 22 is formed integrally with the slider link 23 having a plurality of bent portions 23a, and is moved by the slide link 23, and is provided on the stepped cam portions 24a and 25a. The disk loading unit was configured to be movable downward.

Here, the slide gear 22 meshed with the drive gear 21 capable of forward and reverse rotation by the power of the motor 26 has a plurality of position detection holes 22a and a plurality of bent engaging portions 23a around the slide gear 22. Is integrally coupled to each other, and the control piece 29 supported by the spring 27 is placed on the bent engaging portion 23a of the slide link 23.

In this way, the disc loading portion is attached to the cam portions 24a and 25a of the slide plates 24 and 25 which are coupled so as to be interlocked by the operation of the slide link 23 coupled to the control piece 29 held on the spring 27. Combination is moved up and down to select the disc to play and move on the turntable, in which the cam portion (24a, 25a) is formed on the slide plate (24, 25) to stop exactly at the position of the disc to play In the slide link 23, a bent engaging portion 23a was formed to hold the control piece 29, but this also caused an unstable operation of the power transmission means. In particular, since the position detection hole was installed in the slide gear, the disc Not only the up-and-down movement control of the loading part is very disadvantageous, but in order to compensate for this, the fingering piece 29 supported by the bending part 23a of the slide link 23 does not properly control the amount of motion of the disc loading part. And it does not have the exact positioning disk entry did not work properly.

In addition, since the module constituting the motor, the reduction gear, and the photo interrupt, which is the position selection sensor, and the printed circuit board for controlling the operation of the motor, are separately configured, disassembly and troubleshooting are very inconvenient. And dust caused by friction penetrates into the operating part of the sensor hole or other set, which reduces the service life.

In addition, there is a slide chassis in which a lifting drive guide hole having a plurality of jaws is formed as in Japanese Unexamined Patent Publication No. 4-216365 (92. 8. 6.) to control only mechanically. It is not a big problem that the noise is severe and the failure rate is high.

The present invention has been made in view of the above-described conventional defects, the slide operation is stabilized by allowing more guide holes to guide the operation of the slide chassis, the position detecting means is installed on the reduction gear to position the loading portion more accurately More advanced technology than patent application No. 93-8742, which is the original application of the applicant, is to create a friction force on the photo interrupt gear to facilitate the lifting and positioning of the loading assay, the disc loading device, as well as the motor and the printed circuit. Photointerruption gear with a substrate and photointerruption hole is composed of a single set for easy disassembly and repair, and the operation of the motor is made easier due to the friction stress of the photointerrupt gear so that the correct operation is achieved. There is a purpose.

The present invention devised to achieve the above object will be described in more detail according to an embodiment as follows.

A compact disc auto changer player configured to mount a margin loaded with a plurality of discs, and to selectively take out a disc loaded in the margin and load it on a turntable to play the left and right sides of the compact disc autochanger player. A main part, a playing part configured to install a turntable and a pickup on one side of the main chassis, a margarine holder installed on one side of the playing part, and equipped with a plurality of disks with built-in margins, and a disk of the margin A loading assay to be loaded in a load assembly, a power transmission unit for lifting and lowering the loading assay, and a loading assay control means for accurately stopping the loading assay at a selected disc position, wherein the power unit is coupled to the main chassis. Printing society which is installed in the base chassis and one side of the base chassis A photo sensor mounted on the printed circuit board to detect and control the lifting position of the loading assay, and installed on the printed circuit board to be operated by contacting the rear end of the lock plate of the closed holder, and recognizing whether or not the magazine is installed. A push switch, a driving motor lying on the printed circuit board at right angles and fixed to the base chassis, a reduction gear for reducing the driving speed of the driving motor, and a slide chassis for transmitting the power reduced in the reduction gear to the slide chassis. The photointerrupt gear and the photo interrupt gear installed to operate the photo sensor by interposing a pinion engaged with the rack gear and the gear reduction gear and interlocking with each other, and interposing a loading hole position control interrupt hole at a predetermined interval. Friction device is configured to generate frictional stress, and the control means comprises a shaft in the drive motor. It is installed at any one position between the worm gear and the pinion meshed with the rack gear of the slide chassis, and serves as a reduction gear at the same time, and the photo interrupt gear which generates the friction stress by a separate friction device, and the photo interrupt gear and organic The photo sensor for controlling the operation of the drive motor while operating the operation, and the photo interrupt gear and the rack gear is engaged with the slide and the cam portion formed to have a plurality of jaws in the slide chassis for guiding the loading assay while sliding operation, the photo interrupt The friction device that generates frictional stress on the gear includes: a felt installed around the shaft pin for installing the photointerrupt gear of the main chassis, a photointerrupt gear formed with a friction part in friction with the felt placed around the shaft pin of the main chassis; It is installed on the upper surface of the photo interrupt gear and burns the photo interrupt gear to the friction pent. Smash his for the spring and the spring is configured to determine the washer and E rings.

That is, as shown in FIG. 4, the front chassis 40 and the rear chassis 50 are fixedly installed on both sides of the main chassis before and after the main chassis, and the front chassis is fixedly installed with the main chassis 30. In the chassis 40 and the rear chassis 50, the front slide chassis 60 and the rear slide chassis 70 are installed to selectively lift and lift the loading assay 100 for loading or unloading the disk, but the center point 81 is provided. It is built in the main chassis 30 is coupled to interlock with each other by the link plate 80 which rotates left and right, and slides in the opposite direction.

Here, the front and rear slide chassis (60) and (70) are guide pins (61) and (71) are respectively coupled to the slide long hole (31) laid on the bottom surface of the main chassis (30) to guide the slide operation. The link plate 80 also guides the guide pins 82 coupled with the front and rear slide chassis 60 and 70 to the induction hole 32 installed in an arc shape on the main chassis 30.

In addition, the rear slide chassis 70 and the front slide chassis 60 slide slide holes 41 in front of the main chassis 30 installed in front of the main chassis 30, the landing slot 42 and the front slide The guide pin 62 protruding from the side wall of the chassis 60 is coupled to the slide long hole 41 so that the guide long hole 63 which forms a step at the same time as the slide operation 41 coincides with the lifting hole 42.

Here, one side of the front slide chassis (60) forms a marginal coupling portion (64), and integrally bent to connect the link plate (80) so as to interlock with the rear slide chassis (70) on the bottom of the connecting pin (65) The guide pins 61 were installed to be guided by being coupled to the slide slot 31 of the main chassis 30.

In addition, the main chassis 30 and the rear chassis 50 integrally installed at the rear form at least two guide pins 51 and the lifting holes 52 so as to be spaced apart from each other, and the guide pins 51 slide. The long hole 72 is coupled, and the lifting long hole 52 is provided with a rear slide chassis 70 to match the guide hole 73 formed a plurality of steps.

The rear slide chassis 70 installed as described above is connected to the link plate 80 integrally bent to the link plate 80, the guide pin 71 formed on the connecting piece 74 is the slide hole of the main chassis (30) 31 is coupled to the slide long hole 31, which is installed in the main chassis 30 and the slide long hole 72 of the guide hole 32 and the slide long hole 41, the rear slide chassis 30 of the front chassis 40 Each of the radially large circular coupling holes 31a, 32a, 41a, 72a was formed to facilitate disassembly and assembly of each other.

In particular, the power unit configured to lift and control the loading assay 90 by operating the front and rear slide chassis 60 and 70 may include a base chassis 100 detachably attached to the main chassis 30, and The reduction gear 103 which is engaged with the motor 101 installed on one side of the base chassis 100 and the worm 102 to be installed on the shaft 101a of the motor 101 and decelerates the driving speed of the motor 101. And a pinion 104 engaged with the rack 75 to transmit the driving force of the motor 101 to the rear slide chassis 70, and between the reduction gear 103 and the pinion 104. A photo interruption gear 105 which functions as a reduction gear and installs a plurality of photo interruption holes 105a on the same circumference, and a photo sensor for detecting the position of the photointerrupt hole 105a of the photo interruption gear 105. (106) is installed, and is fixed to the rear end of the lock plate (107) for locking the margin to detect the presence of margin. The printed circuit board 109 on which the push switch 108 and the damper 12 for smoothing the outward drawing operation are installed is composed of a single body, and a friction device that generates friction stress in the photo interrupt gear 105 is constructed. .

In this case, the control means for accurately stopping the loading assay at the disc position to be played is a pinion engaged with the worm gear 102 and the rack gear 75 of the slide chassis 70 which are condensed to the driving motor 101 ( 104 is installed between any one of them to serve as a reduction gear at the same time, and the photo interruption gear 105 and the photo interruption hole 105a of the photo interrupt gear 105, which generate frictional stress with a separate friction device. A slide chassis 60 for guiding the loading assay 90 while the rack gear 75 is engaged with the photo sensor 106 for sensing and the pinion 104 engaged with the photo interrupt gear 105 and slides. The friction device for generating friction stress on the photointerrupt gear 105 is composed of a guide long hole (63) (73) formed to have a plurality of jaws (63a) (73a) in the (70), the base chassis 100 Pel around the shaft pin 110 for installing the photointerrupt gear The photo 111 is installed and the photointerrupt gear 105 is coupled to the shaft pin 110 so that the friction surface 205b formed on the bottom surface of the felt 111 is rubbed, and then the spring 112 is held thereon so that the photo interruption occurs. The spring 105 was supported by the washer 113 and the E-ring 114 by pressing the gear 105 against the felt 111.

In addition, the printed circuit board 109 is installed at the rear end of the motor 101 to allow the photosensor 106 to interoperate with the photo interrupt hole 105a formed in the positioning gear 108 and at the same time the push switch 108. By the lock plate 107, it was made to operate.

According to the present invention, when the margin is mounted, the lock plate 107 shown in FIG. 5 attached to the margin locks the margin and simultaneously presses the push switch 108 to recognize that the margin is mounted.

In this way, when the marge mounting is completed, the motor 101 rotates, and the reduction gear 103 engaged with the motor 101 and the worm 102 rotates.

At this time, the photo interrupt gear 105 engaged with the reduction gear 103 is rotated, and the photo interrupt hole 105a installed therein is detected by the photo sensor 106 to set the position of the loading assay 90 motor. 101 is controlled.

In addition, the photo interrupt gear 105 decelerates the driving force of the motor 101 and is engaged with the pinion 104 engaged with the rack 75 of the rear slide chassis 70 to rotate the pinion 104. do.

As the motor 101 of the power transmission device is driven in this way, the rear slide chassis 70 becomes the rear slide chassis 70 and the front slide chassis 60 interlocked with the link plate 80 slides in opposite directions.

As the front and rear slide chassis 60, 70 slides as described above, the front and rear slide chassis 60, 70 penetrate through the guide slots 63 and 73 formed so as to have a step. The loading assay 90 coupled with the guide pins 91 is elevated in the lifting holes 42 and 52 formed in the rear chassis 40 and 50.

At this time, the lifting operation of the loading assay 90 is the slide chassis 60 and 70 at the same time as the photo sensor 106 which detects the photo interrupt hole 105a of the photo interrupt gear 105 which serves as the reduction gear of the power unit is operated. The control is formed in the control and the complete braking in the frictional force of the photo interrupt gear 105 to accurately position.

In the present invention described above, when a disc loading mode is provided after mounting a plurality of discs loaded with a margin, the motor of the power unit is driven, while the loading assay is sequentially raised from the lowest position, the disc loaded in the margin After checking, the disc stops precisely at the position of the selected disc during the lowering operation and takes out the disc and loads it on the turntable to play. By installing the photo sensor hole in the reduction gear, the tolerance is minimized, and by adding the appropriate frictional stress to the photo interrupt gear in which the photo sensor hole is formed, it is possible to determine the position of the loading assay in a more accurate operation so that the weight of the loading assay, acceleration, etc. Loading Assay and Disc Position No by a very novel invention in which a clearance occurring side effects.

Claims (1)

A main chassis configured to integrally form a side chassis by bending both left and right sides, a play section comprising a turntable and a pickup installed at one side of the main chassis, and a margarine having a plurality of disks installed at one side of the play section. A margarine holder configured to be mounted, a loading assay for loading the disk of the margin on a turntable, a power transmission unit for lifting and lowering the loading assay, and a loading assay control means for accurately stopping the loading assay at a selected disc position. In the compact disc auto changer player configured to mount a plurality of discs loaded with a margin, and to selectively take out the disc loaded in the margin and load it on a turntable, wherein the power unit is coupled to the main chassis. A base chassis and a printed circuit mounted on one side of the base chassis A photo sensor mounted on the printed circuit board to detect and control the lifting position of the loading assay, and installed on the printed circuit board to be operated by contacting the rear end of the lock plate of the closed holder, and recognizing whether or not the magazine is installed. A push switch, a drive motor lying on the printed circuit board at right angles and fixed to the base chassis, a reduction gear for reducing the driving speed of the drive motor, and a slide for transmitting the power reduced in the reduction gear to the slide chassis; On the photointerrupt gear and the photo interrupt gear installed to operate the photo sensor by interposing a pinion engaged with the rack gear of the chassis and the reduction gear and interlocking with each other and interposing a loading hole position control interrupt hole at a peripheral interval. A friction device is configured to generate frictional stress, and the control means is fixed to the driving motor. It is installed at any place between the ummo gear and the pinion meshed with the rack gear of the slide chassis, and acts as a reduction gear at the same time, and the photo interrupt gear which generates friction stress by a separate friction device, and organically operates with the photo interrupt gear. While the photo sensor for controlling the operation of the drive motor, and the photo interrupt gear and the rack gear is engaged with the slide and the cam portion formed to have a plurality of jaws in the slide chassis for guiding the loading assay, the photo interrupt gear A friction device for generating friction stress includes a felt installed around a shaft pin for installing a photo interrupt gear of a main chassis, a photo interrupt gear formed on a bottom surface of a friction part that is rubbed with a felt installed around a shaft pin of the main chassis, and the photo It is installed on the upper surface of the interrupt gear to suppress the photo interrupt gear to the friction felt. Compact disc autochanger player, characterized in that the spring, the spring configured to determine smash his washer and E rings.