KR100472983B1 - Loading and Pick-up Structure of Optical Recording Media - Google Patents

Abstract

The present invention provides a drive for loading an optical recording medium inserted through an optical recording medium insertion slot into a turntable, and also a series of driving operations for clamping the optical recording medium on the turntable together with the termination of loading of the optical recording medium. It is possible to drive by a group of gears connected and driven, and also to be mounted on the main base to be uniformly performed according to the drive of a slide cam that is slide-driven by the gear group, thereby providing components for loading and clamping. The present invention relates to a loading and pickup structure of an optical recording medium capable of miniaturizing the structure by increasing the size of the structure and increasing the reliability of the drive transmission. The driving unit 200 sequentially drives a plurality of gears from a driving source. Wow; An optical recording medium loading part 300 which is connected to the driving part 200; A slide cam part 400 which is slide driven by continuous and discontinuous driving with the driving part 200; A clamp unit 600 for clamping the optical recording medium according to the slide driving of the slide cam unit 400; A guide ceiling (500) capable of maintaining the drive unit (200) and the slide cam unit (400) in a discontinuous driving state; and further comprising a main base (100) of a frame shape in which a central portion (110) is drilled; A pickup base 700 mounted at the center of the main base 100; It is mounted to the rear surface of the pick-up base 700, the feeding gears 730 connected to the feeding motor 740 and driven; consists of.

Description

Loading and pickup structure of optical record carrier

The present invention relates to a loading and pickup structure of an optical recording medium. The present invention relates to a drive for loading an optical recording medium inserted through an optical recording medium insertion hole into a turntable, and also ending the loading of the optical recording medium, and ending the loading of the optical recording medium. A series of drives for clamping of the drive can be driven by a group of gears connected to and driven by a drive source, and can also be made uniformly in accordance with the drive of a slide cam unit mounted on the main base and slidable by the gear group. As a result, it is possible to miniaturize the structure by unifying the components for loading and clamping, and also relates to the loading and pickup structure of the optical recording medium which can increase the reliability of driving transmission according to the unification.

In general, a DVD (Digital Vidio Disk) or CD (Compact Disk) is a roller drive unit for transferring the optical recording medium inserted through the optical recording medium insertion hole to the turntable, and the turntable by guiding the optical recording medium transferred from the roller driving unit An optical recording medium guide portion for seating on the back, a clamp portion for clamping the optical recording medium guided by the optical recording medium guide portion and seated on the turntable, and an optical recording medium seated on the turntable by the clamp portion. It consists of a configuration including a pickup unit for reading the information signal from the.

In the above configuration, when the optical recording medium loading operation is performed, the optical recording medium inserted from the optical recording medium insertion port is guided by the guide pins of the optical recording medium guide part, and the optical recording medium driving roller of the roller driving part is As the rotary drive is driven by the power transmission signal of the driving source, the optical recording medium is horizontally moved toward the turntable by the optical recording medium driving roller.

Subsequently, the optical recording medium is guided by the guide pins of the optical recording medium guide part and mounted on the turntable, and is clamped by the magnet clamp plate of the clamp part, wherein the guide pins of the optical recording medium guide part are spaced apart from the optical recording medium. Thus, automatic mounting of the optical recording medium to the turntable is achieved.

When the mounting of the optical recording medium on the turntable is completed as described above, the feeding gears connected to the feeding motor are driven by the operation of the feeding motor of the pickup unit, and the feeding gears are engaged with the rack gear mounted on the pickup assembly. The pick-up assay guided by the guide rail is transferred to the turntable.

As a result, a pickup for reading the information signal from the optical recording medium mounted on the pickup assembly or signal input systems including the optical recording medium mounting portion reads the record input to the optical recording medium of the turntable. do.

In particular, when looking at the components for mounting the optical recording medium guide portion, the roller driving portion, the clamp portion, and the pickup portion to the main base, first, the roller driving portion receives the rotational force from the motor and is mounted on the optical recording medium insertion slot. The optical recording medium can be loaded by driving an optical recording medium driving roller mounted on the optical recording medium, and the optical recording medium guide portion guides the optical recording medium by a ceiling plate mounted on the top of the main base to move to the turntable. do.

The ceiling plate is equipped with an optical recording medium balance holding part for holding the optical recording medium so that the optical recording medium inserted through the optical recording medium insertion hole can be accurately set and inserted therein, and the optical recording medium balancing holding part is provided with the optical recording medium. Optical record carrier guides formed with equally spaced guided guide pins, transfer guide pins, and regulatory guide pins are mounted opposite each other, and on the base thereof are rotatable pinion gears and interlockable gear parts and discontinuous gears. The rack having a portion is formed, and the outer circumferential surface of the optical recording medium inserted through the optical recording medium insertion hole is inserted with the left and right balance maintained by the balance guide pins mounted on the optical recording medium inserting side, so that the roller driving part As the optical recording medium is transferred by the driving of the roller, the optical recording medium is The transfer guide pin and the regulation guide pin allow it to be mounted on the turntable.

The regulation guide pin of the optical recording medium guider is connected to a cam plate which is movable on the ceiling plate, and the cam plate is connected to the roller driver to control loading and unloading of the optical recording medium. To make it work.

That is, a slide plate in which gear teeth, guide holes, and engaging pieces are processed on a plate through a press punching process and a bending process is generally used as a connection medium of the optical recording medium guide portion and the roller driving portion.

This slide plate is required to go through the process water, as well as to be slidable by fixing pins fixed on the main base, so that the productivity can not be increased due to the increase in the number of production processes, and also requires precise processing. According to the present invention, there is a disadvantage in that the manufacturing defect rate is high, and the gear of the roller driving part is made of a synthetic resin, whereas the gear teeth of the slide plate are made of metal, so that the gear of the roller driving part is easily worn out, so that the accurate driving setting is not made in the long term use. Due to the reduced reliability of the product and the increased installation space due to the flat mounting on the main base, it has become a decisive factor in that the overall mechanism cannot be miniaturized.

In addition, the roller driving unit may receive the rotational force from the motor as described above to drive the optical recording medium driving roller mounted on the disc guide plate mounted at the optical recording medium insertion opening to load the optical recording medium, and at the same time, the slide The optical recording medium guide portion and the clamp portion can be controlled by sliding the plate. In the power transmission from the motor as the driving source, for example, a worm is mounted on the motor, and a worm pulley is mounted on the worm shaft. The driving pulley is connected to the driven pulley and the belt so that the driven pulley and the integral gear part and the optical recording medium driving roller can be driven through the intermediate gear, and the worm gear is engaged with the worm. Gear teeth of the slide plate through a plurality of intermediate gears This is so as to drive the pinion gear is engaged.

Although the worm is used as a drive transmission source, a large reduction ratio can be obtained by the worm, but as the drive transmission means are connected to the worm and the worm shaft, the worm and the worm shaft are overloaded so that the service life is shortened. As the aforementioned worm gears and also intermediate gears connected to the worm gears are mounted on the main base in a planar manner, as mentioned above, there is a factor in which the overall mechanism cannot be miniaturized due to the increase in the installation space. In addition, since the gears are mounted between the main base and the slide plate, the assembly is not easy and the problem of degradability is raised.

In addition, when vibration is applied to the optical recording medium player from the outside, the stability of the reproducing operation state may change due to the influence. For this reason, an elastic member is provided in a fixing part such as a frame to provide a base on which a signal input system (signal / reading system) including a pickup for reading information signals from the optical recording medium or an optical recording medium mounting portion is disposed. It is supported so that the fixing part can move with respect to the foundation.

In particular, in the formation of a drive unit mounted on the pickup base mounted on the main base to drive the pickup assembly, the feeding gears driven by the feeding motor are mounted on the upper side of the pickup base, i.e., around the pickup assembly. Since it is installed to engage with the rack portion of the pick-up assembly, it is difficult to assemble due to mutual interference with the pick-up assembly and the clap member on the assembly line, and also the interference between parts in the replacement and maintenance of accessories. There is a problem of poor maintainability.

The present invention is to solve the above problems, the plurality of gears in the formation of the drive unit for power transmission from the motor to be set to the gear group to be set up and connected drive so that it can be mounted on the side of the main base In this way, it is possible to maintain the power transmission at an accurate reduction ratio without excessive driving by the continuous driving of each gear of the gear groups, and also to set the driving unit to the gear group, thereby minimizing the mounting space by unifying the structure. I would like to.

In addition, in the present invention, in the transmission of power from the driving unit to the optical recording medium guide part and the clamp part, a connecting driving part capable of connecting and driving the driving part, the optical recording medium guide part and the clamp part is formed by integral molding. With a loading slide cam that can be slidably mounted on one side of the base as a connecting driving means, the drive unit is capable of accurate timing driving force by the direct continuous and discontinuous driving with the loading slide cam. Since the optical recording medium can be loaded and unloaded by the transfer, it is intended to provide a loading structure of the optical recording medium which can increase the reliability of driving transmission by simplifying the structure.

In another aspect, the present invention is a pickup assembly and the clap in the assembly line by connecting a plurality of spur gears are rotatably mounted on the rear surface of the pickup base to drive the feed gears driven from the feeding motor to the rear portion of the pickup base, It is an object of the present invention to provide an optical recording medium pick-up structure that can improve assembly and maintainability by avoiding mutual interference with a strip member.

The present invention is a drive unit for driving a plurality of gears sequentially from the drive source; An optical recording medium loading unit configured to be connected to the driving unit; A slide cam unit which is slide driven by continuous and discontinuous driving with the driving unit; A clamp unit for clamping an optical recording medium according to the slide driving of the slide cam unit; And a guide ceiling for maintaining the drive unit and the slide cam unit in a discontinuous driving state.

The power is transmitted from the driving unit to the optical recording medium loading unit so that the optical recording medium inserted through the optical recording medium insertion hole is loaded onto the turntable, and the driving force is transmitted to the slide cam unit connected to the clamp unit and the guide ceiling. As a result, the driving force can be sequentially transmitted from the driving unit at an accurate timing.

The driving unit may include an interlocking gear unit and a loading gear unit, the interlocking gear unit is mounted to the optical recording medium loading unit, and the loading gear unit is connected to the interlocking gear unit to drive the slide cam unit. Since the connection cam is integrally formed in the slide cam to connect and drive the driving unit, the clamp unit and the guide ceiling, the overall loading structure can be minimized by unifying the connecting unit with the driving unit by the slide cam.

In addition, the present invention is the main base; A pickup unit mounted on the main base such that a bottom surface thereof is exposed; A drive unit in which a plurality of gears are sequentially driven from a drive source; An optical recording medium loading unit configured to be connected to the driving unit; A slide cam unit which is slide driven by continuous and discontinuous driving with the driving unit; A clamp unit for clamping an optical recording medium according to the slide driving of the slide cam unit; And a guide ceiling for maintaining the drive unit and the slide cam unit in a discontinuous driving state.

The main base is formed with a pick-up mounting hole for mounting the pick-up part, a slide groove for mounting the slide cam part to move the slide, and a driving part mounting groove for mounting the driving part connected to the slide groove, and the pick-up part in the main base. In this case, additional parts for mounting the slide cam part and the driving part can be reduced.

The drive unit may include an interlocking gear unit and a loading gear unit, and the interlocking gear unit may include an interlocking gear driven by a drive connecting means from a motor shaft, an intermediate gear driven in engagement with the interlocking gear, and the intermediate gear The roller driving gear is configured to be engaged, and is mounted on the optical recording medium loading plate of the optical recording medium loading portion, and the loading gear portion is mounted on the shaft of the roller driving gear of the interlocking gear portion, so that the loading arm has a first loading arm. 2, the intermediate gears and the slide cam driving gear can be assembled so as to be engaged with each other, so that the assembly can be improved by assembling the driving unit first before assembling the driving unit to the main base.

In addition, the optical recording medium loading plate of the optical recording medium loading part is formed to be movable around the hinge axis on the bearing of the main base, and the interlocking gear is rotatably mounted on the hinge axis, and the optical recording medium loading is performed. The optical recording medium driving gear is fixed to the shaft of the optical recording medium loading roller mounted on the plate so that the rotational driving force is transmitted to the optical recording medium loading roller, so that the driving transfer force from the motor to the optical recording medium loading part is sequentially Due to the arrangement, accurate power transmission can be maintained.

In addition, the slide cam unit is integrally molded with a driving unit for driving the driving unit, the clamp unit and the guide ceiling, and the connecting and driving unit for the continuous and discontinuous drive of the slide cam drive gear, the discontinuous gear unit And an elevation difference groove coupled to a position deformation shaft for holding the clamp member so as to be movable about a hinge axis, the slide member being movable, and an optical recording medium for guiding the optical recording medium of the guide ceiling. An arm mounting groove is formed to which the cam plate arm of the cam plate driven according to the present invention is coupled, and the slide cam unit is interlocked with the driving unit to drive the drive connecting means to unify the drive connecting means to transfer the drive to the clamp unit and the guide ceiling. Can improve the reliability and assembly.

In addition, the present invention is a frame-shaped main base with a central portion drilled; A pickup base mounted at the center of the main base; And a feeding gear mounted on the rear surface of the pickup base and connected to the feeding motor.

The pick-up base is mounted on a protruding rib at the center of the main base to which the pick-up base can be mounted so that a feeding gear consisting of a plurality of spur gears is exposed on the rear surface of the pick-up base, and the feeding motor is connected to the turntable of the pick-up base. By being mounted on the pick-up base outside the circumferential surface of the optical recording medium to be mounted, it facilitates the mounting of the feeding gear and the feeding motor, and also the optical recording even when relatively large vibration is applied from the outside during the loading operation or the loading operation. Damage to the media can be prevented.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the main configuration of the present invention includes a driving unit 200, an optical recording medium loading unit 300, a slide cam unit 400, and a clamp unit 600.

The drive unit 200 is a plurality of gears can be sequentially driven from the motor 210 as a drive source, driving the optical recording medium loading unit 300, slide cam 400 and clamp 600 In addition, the driving unit 200 is composed of an interlocking gear unit 220 and a loading gear unit 230, the interlocking gear unit 220 is mounted to the optical recording medium loading unit 300 The loading gear 230 is connected to the interlocking gear 220 to drive the slide cam 400.

The slide cam unit 400 is continuously connected to the driving unit 200 while being integrally molded with a connecting driving unit 410 capable of connecting and driving the driving unit 200, the clamp unit 600, and the guide ceiling 500. The slide can be driven by discontinuous driving.

As shown in the foregoing, the driving unit 200 includes an interlocking gear unit 220 and a loading gear unit 230 as shown in FIGS. 1 to 3, so that the driving unit mounting groove 120 of the main base 100 is located in the driving unit mounting groove 120. The driving unit 200 is mounted to receive the driving force of the motor 210.

The interlocking gear unit 220 includes an interlocking pulley 221 having a gear unit 221-1, an intermediate gear 222 meshed with and driven by the gear unit 221-1 of the interlocking pulley 221, and The interlock pulley 221, the intermediate gear 222, and the roller driving gear 223 are engaged with the intermediate gear 222 to be engaged with the intermediate gear 222. It is mounted on the side of the optical recording medium loading plate 310 of (300).

First, as shown in FIGS. 1 and 2, the optical recording medium loading plate 310 of the optical recording medium loading part 300 is formed as a generally rectangular case shape body, and thus, the main base 100 and the spring 311. It is elastically mounted by the hinge shaft 320 of the drive shaft 200, the hinge shaft 320 is mounted on both bearings 101 in front of the main base 100, the drive unit 200, the interlocking gear portion The interlocking pulley 221 of the 220 is mounted, and is connected to the driving pulley 211 and the belt 212 of the motor 210 to receive the driving force of the motor 210.

In addition, an optical recording medium loading roller 340 having a diameter gradually smaller toward the center than both diameters is mounted on the roller shaft 330 at the rear portion of the optical recording medium loading plate 310, and the roller shaft 330. One side is equipped with a roller driving gear 223 of the interlocking gear unit 220 of the driving unit 200, the driving of the optical recording medium loading roller 340 according to the driving of the roller shaft 330 is optical recording The optical recording medium 10 inserted into the media insertion hole 140 can be loaded.

In addition, the loading gear 230 of the driving unit 200 is composed of a first intermediate gear 231, a second intermediate gear 232 and a slide cam driving gear 233 as shown in Figs. .

The first intermediate gear 231, the second intermediate gear 232, and the slide cam driving gear 233 are rotatably mounted to the plate-shaped loading arm 240, one side of the loading arm 240 being the It is rotatably mounted on the roller shaft 330 of the interlocking gear unit 220, and the other side thereof is mounted to be guided to the arm holding groove 150 of the main base 100.

Next, the slide cam unit 400 capable of connecting and driving the driving unit 200, the clamp unit 600, and the guide ceiling 500 is mounted to the slide cam mounting groove 130 of the main base 100. The guide rails 401 at the bottom of the slide cam unit 400 shown in FIG. 4 are coupled to the guide rails (not shown) of the main base 100 so as to be slidably mounted, and further, a spring hanger below the slide cam unit 400. 402 and the spring hanger 102 of the main base 100 are connected to each other by a spring 403 to be mounted to maintain the elastic force applied to the optical recording medium loading portion 300.

The slide cam mounting groove 130 is located in the space on the side wall side of the main base 100 connected to the driving unit mounting groove 120.

As shown in FIG. 4, the slide cam unit 400 is formed by integral molding of a driving unit 410 capable of driving the driving unit 200, the clamp unit 600, and the guide ceiling 500. In addition, the connection driving unit 410 is a rack cam driving gear 233 of the drive unit 200 and the continuous and discontinuous drive rack portion 411, the discontinuous gear portion 412 is formed, the rack portion 411 When the slide cam driving gear 233 is to drive the slide cam 400 by the engagement driving, and the slide cam driving gear 233 is located in the discontinuous gear 412, As there is no mutual engagement, only the slide cam drive gear 233 rotates without the slide cam 400 moving the slide.

A horizontal groove 413 is formed above the rack portion 411 and the discontinuous gear portion 412 such that the slide cam portion 400 is the shaft of the slide cam driving gear 233 of the driving portion 200. 1) is coupled so as to be guided and moved, and an inclined surface 414 is formed on an extension line of the horizontal groove 413 so that the shaft 231-1 of the first intermediate gear 231 of the drive unit 200 is formed. This can be guided and moved.

Therefore, the interlocking gear unit 220 (interlocking pulley 221, intermediate gear 222, roller driving gear) and the loading gear unit 230 (first intermediate gear 231, second) of the driving unit 200. The intermediate gear 232 and the slide cam driving gear 233 are connected to the loading arm 240 to be driven by mutually engaged engagement, and the driving unit 200 is guided to the slide cam 400. By sliding the slide cam unit 400 in a state, the clamp unit 600 and the guide ceiling 500 can be stably connected and driven.

In addition, the slide cam unit 400, the height difference groove 415 is coupled to the position deformation axis 620 for maintaining the clamp 600 to be movable around the hinge shaft 610 to be slidable. Formed.

The elevation difference groove 415 is formed in an approximately crank shape, and as shown in FIG. 3, the slide cam part 400 is driven by the drive of the slide cam driving gear 233 of the drive part 200. When loading the optical recording medium 10 as shown in (b), the position-deformation axis 620 of the clamp unit 600 is positioned above the elevation groove 415 to the turntable 20 to be described later. When the loading of the optical recording medium 10 is completed while being positioned so as not to interfere with the loading of the 10, the position deformation axis 620 of the clamp unit 600 is positioned downward as shown in FIG. Thus, the clamp unit 600 supports the optical recording medium 10 mounted on the turntable 20.

In addition, a cam driven in accordance with the driving of the optical recording medium guide lever 510 for guiding the optical recording medium 10 of the guide ceiling 500, which will be described later in detail in the connection driving unit 410 of the slide cam unit 400. An arm mounting recess 416 to which the cam plate arm 551 of the plate 550 is coupled is formed in a substantially rectangular recess on the upper side of the elevation difference recess 415.

The guide ceiling 500 is a plate-shaped plate, as shown in Figures 5 to 7, it is to be coupled to the side wall of the main base 100 as shown in Figure 1 by a locking means.

In particular, the guide ceiling 500 is an optical recording medium 10 loaded by the optical recording medium loading roller 340 of the optical recording medium loading unit 300 through the optical recording medium insertion opening 140 of the main base 100. Guide the outer circumferential surface so that the optical recording medium 10 can be stably mounted to the turntable (20).

The guide ceiling 500 has gear units 511 and discontinuous gears 512 formed at the base of the optical record carriers 510 corresponding to each other, so that the guide ceiling 500 can be rotated. The pinion gear 570 can be engaged with the mounted pinion gear 570, while being elastically held by the mutual spring 514 as shown in FIG.

In addition, a plurality of retaining pins 513 (see FIG. 1) are fixed to an upper surface of the optical recording medium guider 510 to drill holes of the guide ceiling 500 that are perpendicular to the insertion direction of the optical recording medium 10. The holding pin 513 is guided to the guide hole 501 of the optical recording medium, and the optical recording medium is guided to the pinion gear 570 only when the optical recording medium is applied with a balanced force to the guider 510. The gear parts 511 of the crankshaft can perform the opening operation by the engagement driving.

In addition, the lower surface of the optical recording medium guider (510) (upper surface in Figure 5), the guide guide pin 520, the guide guide pin 530 and the regulation guide pin that can guide the outer peripheral surface of the optical recording medium 10 ( 540 are formed, and the balance guide pin 520, the transfer guide pin 530, and the regulation guide pin 540 are perforated in a direction orthogonal to the insertion direction of the optical recording medium 10 in the guide ceiling 500. It is mounted to be guided to the guide holes 501 of the long hole.

The balance guide pins 520 are provided only when the optical recording medium 10 inserted from the optical recording medium insertion hole is applied with a balanced force to each other, as shown in FIG. The pinion gear 570 can be opened from the discontinuous gear portion 512 to the gear portions 511 by the meshing operation.

Subsequently, as the motor 210 of the driving unit 200 is driven by the signal of the optical recording medium 10 inserted into the optical recording medium insertion hole as described above, the optical recording medium loading roller of the optical recording medium loading unit 300 is rotated. 340 is rotated to load the optical recording medium 10, and eventually FIG. 7 (b), (c), (d), (e), (f), (d), (h), and (d). The optical recording medium 10 may be guided by the balance guide pin 520, the transfer guide pin 530, and the regulation guide pins 540 to be seated on the turntable 20.

One optical recording medium guider 510 of the guide ceiling 500 is connected to a link 560 which is connected to the interlocking pin 561 at a predetermined distance from the transfer guide pin 530. Regulator guide pin 540 is formed at the tip to guide the guide holes 501 of the guide ceiling 500 as described above, while the interlocking pin 561 and the regulatory guide pin 540 are mounted. 5 to 7, a plate-shaped cam plate 550 is mounted to be slidably movable. The cam plate 550 is provided with an interlocking pin 561 and a regulation guide of the optical recording medium guider 510. In accordance with the movement of the pin 540, it is mounted to be movable in the longitudinal direction of the insertion direction of the optical recording medium 10 with an elastic force applied to the rear of the guide ceiling 500 by a spring (not shown).

In addition, the cam plate 550 has a pin guide hole 552 having a vertical hole 552-2 connected to a horizontal hole 552-1 having a predetermined shape, ie, a predetermined length, in two stages. 552 'is formed, and the cam plate arm 551 is formed to protrude.

The pin guide holes 552 and 552 ′ have interlocking pins 561 and regulatory guide pins 540 of the optical recording medium guider 510 guided to the guide holes 501 of the guide ceiling 500. Are guided, so that the interlocking pins 561 and the regulating guide pins 540 are positioned at the vertical holes 552-2 of the pin guide holes 552 and 552 'of the cam plate 550. As a result, the cam plate 550 can be slid in the longitudinal direction of the insertion direction of the optical recording medium 10.

As described above, the cam plate arm 551 of the cam plate 550 is mounted to the arm mounting recess 416 formed in the connection driving unit 410 of the slide cam unit 400 which is slidably movable to the main base 100. As the cam plate 550 moves as described above, the driving force of the driving unit 200 may be maintained in the slide cam unit 400 in a continuous and discontinuous driving state by controlling the slide cam unit 400.

That is, the driving of the slide cam 400 is controlled by the cam plate arm 551 of the cam plate 550, the slide cam drive gear 233 of the drive unit 200 as shown in FIG. The slide cam driving gear 233 is positioned at the discontinuous gear portion 412 of the cam portion 400 and the loading of the slide cam driving gear 233 with the rack portion 411 of the slide cam portion 400 is completed. End of engagement can be maintained to be located in the discontinuous gear 412.

Next, the pickup structure of the optical recording medium will be described.

The pickup structure of the present invention is composed of a main base 100, a pickup base 700 and a feeding gear 730 as shown in Figs. 1, 8 and 9.

The main base 100 is a molded product having a central portion 110 formed therein, and protruding ribs 111 are formed at four corners of the central portion 110.

In addition, the pickup base 700 is a substantially rectangular shape that can be mounted on the central portion 110 of the main base 100. The turntable 20 and the guide rail 720 on which the pickup assembly 710 is guided are both sides. It is formed in the feeding motor 740 and the feeding gears 730 is to be mounted.

The pickup base 700 is fixed to the protruding ribs 111 of the frame-shaped main base 100 through which the center portion 110 is drilled by fixing means 112 such as bushes and screws.

In addition, in the mounting of the feeding motor 740 and the feeding gears 730 subjected to the driving force of the feeding motor 740 to the pickup base 700, the present invention is to pick up the feeding gears 730 pick-up base ( Mounted on the rear surface of the main body 700, and also mounted on the pickup base 700 outside the circumferential surface of the optical recording medium 10 mounted on the turntable 20 of the pickup base 700. Shall be.

The feeding motor 740 is mounted on the pick-up base 700 while the axis of the feeding motor 740 passes through the pick-up base 700, and the shaft of the feeding motor 740 is located on the rear surface of the pick-up base 700. The drive gear 731 is mounted on the intermediate gear 731 so that the intermediate gear 732 meshes with the drive gear 731, and the interlocking gear 733 of two stages is engaged with the intermediate gear 732. It is.

Thus, the interlocking gear 733 is driven to mesh with the intermediate gear 732, and the other gear portion of the interlocking gear 733 is slidably movable to the one guide rail 720 together with the pickup assembly 710. The pickup assembly 710 may be fed by the engagement operation with the 711.

Accordingly, the drive gear 731, the intermediate gear 732, and the interlocking gear 733 are rotated in response to the driving of the feeding motor 740, so that the rack portion 711 of the pickup assembly 710 and the interlocking gear 733 are rotated. ), The pickup assembly 710 drives the turntable 20 toward the turntable 20, and then the pickup 712 of the optical record carrier 10 mounted on the turntable 20 is picked up. To read the record.

Looking at the operation of the optical recording medium for the loading and pickup structure of the optical recording medium in detail as follows.

When the optical recording medium 10 is inserted through the optical recording medium insertion hole with the main switch turned on, the outer circumferential surface of the optical recording medium 10 is formed on both balance guide pins 520 of the guide ceiling 500. 7 (a), the balance guide pins 520 are provided only when the optical recording medium 10 is horizontal and a balanced pushing force is applied to both sides. 510 are engaged with the gear unit 511 by the disengagement operation from the discontinuous gear part 512 to the pinion gear 570.

In addition, the motor 210 of the driving unit 200 is operated to interlock the pulley 221, the intermediate gear 222 to be engaged with the gear unit 221-1 of the linkage pulley 221, and the intermediate The roller driving gear 223 meshed with the gear 222 is driven, and the first driving gear 231, the second intermediate gear 232, and the slide cam driving vessel are driven on the roller driving gear 223. The fish 233 are driven sequentially.

Here, in the initial state before the optical recording medium 10 is inserted through the insertion hole, the slide cam driving gear 233 is a discontinuous gear part of the slide cam part 400 as shown in FIGS. The driving force of the driving unit 200 is located at 412 so that only the roller driving gear 223 is rotated without driving the slide cam unit 400, thereby loading the optical recording medium 10 toward the turntable 20.

When the optical recording medium 10 continues to be loaded by the roller driving gear 223 in the above state, the optical recording medium guiders 510 are transferred at the position (C) of FIG. 7 (b). The guide pins 530 and the transfer guide pins 530 and the regulation guide pins 540 of one optical recording medium guider 510 by continuous loading as shown in FIGS. 7 (d) to (bar). You will be guided to

In addition, as the slide cam driving gear 233 of the driving unit 200 is driven to engage with the rack unit 411 of the slide cam unit 400, the slide cam unit 400 as shown in FIG. It is guided to the guide rail of 100) to gradually move to the right in the drawing.

As the slide cam unit 400 moves, the position deformation shaft 620 of the clamp unit 600 is guided to the elevation difference groove 415 of the slide cam unit 400, so that both hinge shafts of the clamp unit 600 are rearward. It is moved toward the turntable 20 about 610.

In addition, when the optical recording medium 10 guided to the transfer guide pin 530 and the regulation guide pins 540 of the optical recording medium guider 510 is continuously loaded, FIGS. It is loaded as shown in, to mount the optical recording medium 10 to the turntable 20.

At this time, the interlocking pin 561 and the regulating guide pin 540 of the optical recording medium guided lever 510 is located at the position of the optical recording medium 10 as shown in FIG. 552 and 552 ', the cams of the cam plate 550 are positioned by the positional deformation of the cam plate 550 (downward in FIG. 7). The plate arm 551 moves the slide cam unit 400 further to the right in the state of FIG. 3 (c) so that the slide cam drive gear 233 is positioned at the discontinuous gear unit 412 of the slide cam unit 400. Thus, the loading of the optical recording medium 10 is completed.

On the contrary, in the extraction of the optical recording medium, since the driving is performed in the reverse order of the loading, detailed description thereof will be omitted.

In addition, the pickup motor 740 is mounted on the pickup base 700 on which the pickup assembly 710 is mounted, and the feeding motor 740 is picked up outside the circumferential surface of the optical recording medium 10 mounted on the turntable 20 of the pickup base 700. By being mounted on the base 700, it is possible to prevent the optical recording medium 10 from being damaged by direct or indirect impacts on the main body, and the axis of the feeding motor 740 penetrates through the pickup base 700. Thus, the drive gear 731 is mounted on the shaft of the feeding motor 740 on the rear surface of the pickup base 700, and the intermediate gear 732 is meshed with the drive gear 731, A two-stage interlocking gear 733 is engaged with and driven by the intermediate gear 732, so that the rack portion 711 of the pickup assembly 710 and the interlocking gear 733 are engaged with each other. After the essay 710 is driven toward the turntable 20, the pickup of the optical recording medium 10 mounted on the turntable 20 is picked up (71). The record is read by the pickup 712 of 0).

As described above, according to the present invention, a plurality of gears in the formation of a drive unit for power transmission from a motor are set up so as to be mounted on the side of the main base by being set into a gear group that is set up and connected and driven. It is possible to minimize the installation space by unifying the structure by maintaining the power transmission at an accurate reduction ratio without excessive force by the continuous driving of each gear, and also by setting the driving unit to the gear group, and also the present invention The pickup base is mounted on the protruding rib of the center of the main base to which the pickup base can be mounted so that the feeding gears comprising a plurality of spur gears are exposed on the rear surface of the pickup base, and the feeding motor is connected to the turntable of the pickup base. To be mounted on the pickup base outside the circumference of the mounted optical record carrier. Therefore, it is easy to mount the feeding gear and the feeding motor, and there is an effect of preventing damage to the optical recording medium even when relatively large vibration is applied from the outside during the loading operation or the loading operation.

1 is an exploded perspective view of a loading and pickup structure of an optical recording medium of the present invention;

2 is a plan view of a state in which the guide ceiling and the pickup structure of the present invention are removed;

Figure 3 (a), (b), (c) is a side view of the loading state of the optical recording medium of the present invention,

4 is a perspective view of a slide cam of the present invention;

5 is a rear perspective view of the guide ceiling of the present invention;

6 is a plan view of a ceiling of an initial state before an optical recording medium of the present invention is inserted through an optical recording medium insertion hole;

7 (a), (b), (c), (d), (e), (f), (d), (h), and (d) show that the optical recording medium of the present invention is an optical recording medium insertion opening. Plan view of the guide ceiling showing the process of mounting on the turntable from the initial state inserted through,

8 is an exploded perspective view of a main base and a pickup base of the present invention;

Figure 9 (a), (b) is a plan view and side view of the pickup base of the present invention.

〈Description of the symbols for the main parts of the drawings〉

10: optical recording medium 20: turntable

100: main base 200: drive unit

210: motor 211: driving pulley

212: belt 220: interlocking gear

221: interlock pulley 222: intermediate gear

223: roller driving gear 230: loading gear

233: drive gear for slide cam 300: optical recording medium loading unit

310: optical recording medium loading plate 340: optical recording medium loading roller

400: slide cam portion 410: connection driving portion

401: guide rail 411: rack portion

412: discontinuous gear 413: horizontal groove

414: slope 415: elevation difference groove

416: arm mounting home 500: guide

510: optical recording medium guider 511: gear unit

512: discontinuous gear 520: balance guide pin

530: transfer guide pin 540: regulation guide pin

550: cam plate 551: cam plate arm

560: link 561: interlocking pin

570: pinion gear 600: clamp portion

610: hinge axis 620: position deformation axis

700: pickup base 710: pickup assembly

730: feeding gear 731: drive gear

732: middle gear 733: interlocking gear

740: feeding motor

Claims (12)

A drive unit in which a plurality of gears are sequentially driven from a drive source; An optical recording medium loading unit adapted to be connected to the driving unit; A slide cam unit which is slide driven by continuous and discontinuous driving with the driving unit; A clamp unit for clamping an optical recording medium according to the slide driving of the slide cam unit; Consists of a guide ceiling that can maintain the drive unit and the slide cam unit in a discontinuous drive state, And the driving unit transmits power to the optical recording medium loading unit so that driving force is transmitted from the optical recording medium loading unit to the slide cam unit. The method of claim 1, wherein the drive unit is composed of an interlocking gear unit loading gear unit, the interlocking gear unit is mounted to the optical recording medium loading unit, the loading gear unit is connected to the interlocking gear unit to drive the slide cam unit. An optical recording medium loading structure. 2. The loading structure of an optical recording medium according to claim 1, wherein the slide cam portion is integrally formed with a connection driving portion for driving the driving portion, the clamp portion, and the guide ceiling. With main base; A pickup unit mounted on the main base such that a bottom surface thereof is exposed; A drive unit in which a plurality of gears are sequentially driven from a drive source; An optical recording medium loading unit configured to be connected to the driving unit; A slide cam unit which is slide driven by continuous and discontinuous driving with the driving unit; A clamp unit for clamping an optical recording medium according to the slide driving of the slide cam unit; A guide ceiling for maintaining the drive unit and the slide cam unit in a discontinuous driving state; Consist of The main base is provided with a pickup mounting hole for mounting a pickup unit, a slide groove for mounting a slide cam unit, and a driving unit mounting groove for mounting a drive unit connected to the slide groove to form a loading unit. rescue. 5. The driving unit of claim 4, wherein the driving unit comprises an interlocking gear unit and a loading gear unit, the interlocking gear unit is mounted to the optical recording medium loading unit, and the loading gear unit is connected to the interlocking gear unit to drive the slide cam unit. Loading structure of the optical recording medium, characterized in that. 6. The interlocking gear portion of claim 5, wherein the interlocking gear portion comprises an interlocking gear driven by a drive connecting means from a motor shaft, an intermediate gear in engagement with the interlocking gear, and a roller driving gear gear in engagement with the intermediate gear. It is mounted on the optical recording medium loading plate of the optical recording medium loading portion, the loading gear portion is mounted to the shaft of the roller drive gear of the interlocking gear portion, the first and second intermediate gears and the slide cam on the loading arm And a driving gear is formed to be engaged with each other. The optical recording medium loading plate of the optical recording medium loading part is formed to be movable around a hinge axis on the bearing of the main base, and an interlocking gear is rotatably mounted to the hinge axis. And an optical recording medium driving gear is fixed to an axis of the optical recording medium loading roller mounted on the optical recording medium loading plate so that a rotation driving force is transmitted to the optical recording medium loading roller. The optical recording medium loading structure according to claim 4, wherein the slide cam part is integrally formed with a connecting driving part capable of connecting and driving the driving part, the clamp part and the guide ceiling. The slide driving apparatus of claim 8, wherein the connection driving unit is coupled with a slide cam driving gear, a rack unit capable of continuously and discontinuous driving, a discontinuous gear unit, and a position deformation shaft for holding the clamp unit movable about a hinge axis. An arm mounting recess is formed, in which an arm height difference groove and an optical mounting medium for guiding the optical recording medium of the guide ceiling are coupled to a cam plate arm of a cam plate driven by driving of the guide lever. Loading structure. A frame-shaped main base having a central portion drilled therein; A pickup base mounted at the center of the main base; Consists of a feeding gear which is mounted on the rear surface of the pickup base and connected to the feeding motor; And the pick-up base is fixed to the protruding rib of the center portion by a fixing member. 12. The pickup structure of claim 10, wherein the feeding motor is mounted on a pickup base outside a circumferential surface of the optical recording medium mounted on the turntable of the pick base. 12. The pickup structure of claim 10 or 11, wherein the feeding gears are pivotally mounted on a rear surface of the pickup base to be connected to the rack portion of the pickup assembly. .

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