KR100267914B1 - Loading apparatus of optical recording medium - Google Patents

Abstract

PURPOSE: An apparatus for loading an optical recording medium is provided to install a continuous gear train by using a clutch instead of a discontinuous gear, so as to alleviate loss by an overload, and to reduce an operation noise by the continuous train. CONSTITUTION: The first plate(110) and the second plate(120) are slid on a base(100) and lead a disk in a playing location. The first holder(130) and the second holder(140) are interlocked with the first plate(110) and the second plate(120) respectively. The first holder(130) and the second holder(140) hold the disk or push out the disk to be extracted to a set external. A power transmission gear unit(G) transmits powers to the first plate(110) and the second plate(120), to lead in the disk. A clutch(200) includes a slip gear performing a sliding when gear units(110a,151) of the power transmission gear unit(G) are in an overload state. The clutch(200) is installed between the first connector gear(180) and the second connector gear(181) to perform the sliding.

Description

Optical recording medium loading device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical recording medium loading apparatus, and more particularly, to an optical recording medium loading apparatus that mitigates damage due to overload on a mechanism occurring during insertion and extraction of an optical recording medium and increases noise and operation reliability. It is about.

In general, an optical recording medium loading apparatus is provided with a first plate 2 and a second plate 3 for sliding up and down on both sides of the base 1, as shown in FIG. 3), the first holder 4 and the second holder 5 for holding the optical recording medium D with the pins p1 and p2 as support points are combined.

As shown in FIG. 5, the first plate 2 and the second plate 3 have a predetermined portion coupled to each other so that the first plate 2 and the second plate 3 can slide along the base 1 toward the front and the rear. have.

As shown in FIG. 1, an extraction member 6 for extracting the optical recording medium D is provided between the first plate 2 and the first holder between the lower surface of the first holder 4 and the upper surface of the base 1. It is installed to interlock with (4).

A guide hole 6a elongated in the longitudinal direction is formed in parallel in the central portion of the takeout member 6, and the guide hole 6a guides the fixing pin 1a fixed to the base 1. An elastic body (not shown) is connected between the first catching ring 6b protruding on one side of the member 6 and the second catching ring 2c formed on one side of the first plate 2, thereby providing an optical recording medium D. When the insertion and loading motor 7 is driven, the upper surface of the base 1 can be elastically slidably moved forward and backward.

As shown in FIG. 2, protruding pins 2a and 3a are formed on upper surfaces of the first plate 2 and the second plate 3, respectively, and both sides of the base 1 are protruded. Guide grooves 1b for guiding the pins 2a and 3a to the front and rear sides are formed at the front and rear sides.

Meanwhile, the upper part of the base 1 receives the rotational force of the pulley 8 pressed into the shaft of the loading motor 7 fixed to the main base (not shown) through the belt V and the gear pulley 9. The split gear 10, the first connector gear 11, and the planetary gear 12 for loading and unloading the optical recording medium D sequentially form heat. The planetary gear 12 forms a discontinuous gear train that can be connected to the gear portion 2b of the first plate 2.

In addition, the split gear 10 is engaged with the second connector gear 13 and the third connector gear 14 for taking out the optical recording medium D. FIG.

The third connector gear 14 and the fourth connector gear 16 are interlockably engaged with both discontinuous gear portions of the cam gear 15 as the discontinuous gear. The upper gear portion 16a of the fourth connector gear 16 is engaged with the gear portion 6c of the takeout member 6.

At one rear end of the first plate 2, a sensor S for detecting an insertion of the optical recording medium D and emitting an electrical signal to rotate the loading motor 7 when the optical recording medium D is inserted is provided. It is located.

In order to prevent the flow of the first plate 2 and the second plate 3, a stopper 17 is formed at one end of the second plate 3 to rotate the pin P3 to a supporting point. 17, one end of the fixing pin P4 is integrally formed, and as shown in FIG. 5, the fitting pin P4 fits into the recessed groove portion 101 formed in the base 1 and slides freely.

In addition, a locking portion 17a is formed at the other end of the stopper 17, and the spring 20 is engaged with the locking portion 5a formed at one end of the second holder 5 at the locking portion 17a. Is installed.

The loading apparatus configured as described above, when the optical recording medium (D) is seated on the first holder (4) and the second holder (5) as shown in Figure 1 when the user inserts the optical recording medium (D) When the stopper 17 is brought into contact with a predetermined portion of the optical recording medium D and the optical recording medium D is moved inward, the stopper 17 rotates in the direction of arrow A in FIG. As shown in FIG. 2, the fixing pin P4 formed at one end of the stopper 17 is released from the recess 101 of the guide part 102 of the base 1 to move inward along the guide part 102. Is moved. Accordingly, the first plate 2 and the second plate 3 on which the protruding pins 2a and 3a are formed are moved inward (arrow B direction) along the guide groove 1b formed on the base 1 at the same time. When contacted with the sensor (S) located at one end of the first plate (2), the sensor (S) detects this and sends an electrical signal to the loading motor (7) to rotate the loading motor (7).

The gear pulley 9 is rotated through the belt V by the rotational force of the loading motor 7, and the rotational force of the gear pulley 9 is meshed with the gear pulley 9. The rotational force of the split gear 10 is transmitted to the first connector gear 11 and the planetary gear 12.

Meanwhile, the planetary gear 12 is engaged with the gear part 2b formed on the first plate 2 to rotate.

Therefore, the first plate 2 and the second plate 3 are brought into a state as shown in FIG. 2 by the rotational force of the planetary gear 12.

At this time, the state is a state immediately before being checked in the pickup unit.

In addition, during loading, the cam gear 15 is stopped because the discontinuous gear portion of the cam gear 15 is in contact with the third connector gear 14 and the fourth connector gear 16. At this time, the fourth connector gear 16 is stopped. Is rotated in conjunction with the extraction member (6).

3 shows an unloading state in which the planetary gear 12 is in a state where the planetary gear 12 and the gear portion 2b of the first plate 2 are released. Unlike the loading, the pin P5 on the connector lever 19 is guided to the outer surface of the trigger plate 19 while the lever 19 rotates counterclockwise, and the other pin P6 on the connector lever 19 is rotated. The cam gear 15 is rotated clockwise while being guided to the cam portion of the cam gear 15.

At this time, the gear part of the cam gear 15, the third connector gear 14 and the fourth connector gear 16 are engaged with each other to move the take-out member 6 in the direction of arrow C shown in FIG. Accordingly, the first holder 4 takes out the optical recording medium D while rotating the fixing pin P1 in the clockwise direction.

The following problems are pointed out for the optical recording medium loading apparatus constructed and operated as described above.

First, an excessive force is applied to the apparatus when artificially intercepting an obstacle, i.e., an obstacle such as a foreign matter in the optical recording medium ejection direction occurs, or when the optical recording medium inserted into the optical recording medium is forcibly blocked. This may damage the gear train or damage the optical recording medium.

Second, since the gears are discontinuously formed in the cam gear used when loading / unloading the optical recording medium and withdrawing the optical recording medium, reliability of operation is inferior.

Third, the loading device has a problem that the configuration is complicated by the number of parts.

The present invention is to solve the above drawbacks, by using a clutch device in which a slip occurs when a certain overload is applied in place of the conventional discontinuous gears by configuring the gear train in a continuous gear train, thereby preventing damage to the device due to overload The present invention provides an optical recording medium loading apparatus for mitigating and increasing noise and operation reliability.

The present invention and the base to achieve the above object; A first plate and a second plate which are slid on both sides of the base or one by one; First and second holders respectively mounted to the plates to hold the optical recording medium; An extraction member installed in the first holder for taking out the optical recording medium and having a rack formed on one side thereof; Gears for driving said ejection member; It is characterized in that the clutch device is installed so that the slip between the gears.

The clutch device includes: a first gear rotatably installed on the upper surface of the base as a support point; A second gear installed in close contact with the first gear by the elastic force of the spring; A friction pad installed between the first and second gears; The cap is pressed into the hinge to compress the spring, wherein the first gear is configured to mesh with the second connector gear, the second gear is respectively engaged with the third connector gear, the first symmetrically installed A rib protrudes from one end of the first holder among the holder and the second holder, and the rib is configured to linearly take out the optical recording medium by being linearly moved along the guide groove formed in the first plate.

1 to 4 show a conventional optical recording medium loading apparatus,

1 is a view showing a state before inserting an optical recording medium into a loading apparatus;

2 is a view showing a state where an optical recording medium is inserted into a loading apparatus;

3 is a diagram briefly showing a process of taking out an optical recording medium from a loading apparatus;

4 is a view showing a state in which the optical recording medium is completely taken out from the loading apparatus.

5 is a rear view of a conventional optical recording medium loading apparatus.

6 to 8 show the optical recording medium loading apparatus of the present invention.

6 is a view showing a state before inserting an optical recording medium into the loading apparatus;

7 is a view showing a state where an optical recording medium is inserted into a loading apparatus;

8 shows a state in which the optical recording medium is taken out from the loading apparatus.

9 is a sectional view briefly showing a coupling relationship between gear portions of the optical recording medium loading apparatus of the present invention.

10 is a simplified view of the clutch device of the present invention.

* Explanation of symbols for main parts of the drawings

100: base 101: groove

110: first plate 110a, 151: gear part

111: guide groove 120: second plate

130: first holder 131: rib

140: second holder 150: take out member

160: loading motor 170: pulley

180: first connector gear 181: second connector gear

182: third connector gear 200: clutch device

210: first gear 220: second gear

230: spring 240: friction pad

250: cap 300: stopper

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

6 to 11 show an optical recording medium loading apparatus of the present invention, FIG. 6 shows a state before the optical recording medium D is inserted into the loading apparatus, and FIG. 7 shows an optical recording medium inserted into the loading apparatus. 8 is a view showing a state in which the optical recording medium is detached from the loading apparatus, and FIG. 9 is a cross-sectional view briefly illustrating a coupling relationship between gear portions of the optical recording medium loading apparatus of the present invention. 10 is a perspective view briefly showing the clutch device of the present invention.

An apparatus for inserting and extracting the optical recording medium of the present invention, as shown in FIG. 6, includes a base 100; A first plate (110) and a second plate (120) sliding on both sides or one side of the base (100); A first holder 130 and a second holder 140 installed on the first plate 110 and the second plate 120 to hold the optical recording medium D; A take-out member 150 installed in a part of the first holder 130 to take out the optical recording medium D and having a rack, which is a gear part 151, formed on one side thereof; A power transmission gear part (G) for driving the extraction member (150); The technical features are provided because the clutch device 200 which is a slip gear in which slip occurs between the gears of the power transmission gear part G is installed.

As shown in FIG. 9 or 10, the clutch device 200 includes: a first gear 210 rotatably installed on the upper surface of the base 100 with a hinge 201 as a support point; A second gear 220 in close contact with the upper surface of the first gear 210 by the elastic force of the spring 230; The cap 250 is pressed into the hinge 201 and compresses the spring 230. The first gear 210 is connected to the second connector gear 181, and the second gear 220 is connected to the third connector. The contact surface between the first gear 210 and the second gear 220 has a predetermined surface friction coefficient as the contact surface between the first gear 210 and the second gear 220 is elastically closely contacted by the spring 230, respectively. It is composed. The friction pad 240 may be inserted between the first gear 210 and the second gear 220 in order to effectively generate the surface friction of the first gear 210 and the second gear 220. It may be.

In addition, the first gear 210 is formed to have a larger diameter than the second gear 220, the spring 230 is made of a conical compression spring, the friction pad 240 is the second gear 220 It is formed integrally with the lower part.

The rib 131 protrudes from an upper end of the first holder 130 of the first holder 130 and the second holder 140 which are installed symmetrically with each other, and the rib 131 is the first plate 110. 2) is formed so as to move linearly along the guide groove 111 opened in the upper side, and one side of the second holder 140 for taking out the optical recording medium linearly is formed in a straight line, and a stopper 300 is installed at one end thereof. It has a structure that interlocks with the optical recording medium (D), and is configured to release the loading when the optical recording medium is inserted, and to be loaded when the optical recording medium is taken out. The optical recording medium D is taken out linearly according to the linear motion of the first holder 130.

In addition, the second holder 140 for guiding the optical recording medium D is fixed to the pin P1 ′ on the second plate 120, and the second holder 140 is fixed to prevent the flow of the optical recording medium D. A stopper 300 is formed at one end of the plate 140 to pivot the pin P2 'to a support point, and a fixed pin P4 is integrally formed at one end of the stopper 300 as shown in FIG. Formed in the recessed portion 101 formed in the base 100 when the optical recording medium D is taken out, and released from the recess 101 when the optical recording medium D is inserted. It slides freely along the groove 101 and the guide groove 102 extended.

In addition, a first catching portion 310 is formed at the other end of the stopper 300, and the catching portion 310 is engaged with a second catching portion 141 formed at one end of the second holder 140. 400 is installed elastically.

In the apparatus for inserting and extracting the optical recording medium configured as described above, as shown in FIG. 6, the optical recording medium D is mounted on the first holder 130 and the second holder 140 so that the user When the optical recording medium D is pushed inward, the stopper 300 is rotated in the direction of arrow A 'of FIG. 6 by the force of moving the optical recording medium D inward, and at one end of the stopper 300. The formed fixing pin P4 is released from the recess 101 of the base 100, and the first plate 110 and the second plate 120 are moved in the direction of the arrow B ', and the first plate 110 is then moved. When the sensor (S) is in contact with the end of the sensor (S) detects this and sends an electrical signal to the loading motor 160 to rotate the loading motor 160.

The rotational force of the loading motor 160 is rotated through the belt (V), the power transmission gear (G), that is, the gear pulley (G1), the rotational force of the gear pulley (G1) and the gear pulley (G1). It is transmitted to the meshed split gear (G2), the rotational force of the split gear (G2) is the first connector gear 180, the first connector gear 181, the clutch device 200 and the third connector gear (182). It is transmitted to the gear unit 151 of the take-out member 150 through, the first plate 110 and the second plate 120 is in a state as shown in FIG. At this time, the state is a state immediately before being checked in the pickup unit.

In the loading state of the prior art, in the cam gear, which is a discontinuous gear, the discontinuous gear portion is in contact with the connector gears and is stopped. The clutch device 200 is generated to rotate and slip operation continuously occurs.

On the other hand, at the time of taking out the optical recording medium D, as shown in FIG. 8, the loading motor 160 is rotated in the opposite direction as when the optical recording medium is loaded so that the gear unit 110a and the planetary body of the first plate 110 are rotated. As the gear G3 is engaged with each other, the planetary gear G3 is idle as shown in FIG. 6, and this operation is the same as the take-out operation according to the prior art. However, in the subsequent operation, the ejection operation is continuously performed through the gear 151 of the split gear G2, the first connector gear 180, the second connector gear 181, the clutch device 200, and the ejection member 150. As shown in FIG. 8, the extraction operation is completed.

At this time, the first holder 130 having the rib 131 protruding thereon is linearly moved along the guide groove 111 formed in the first plate 110, thereby taking out the optical recording medium D linearly.

As described above, the loading device of the optical recording medium of the present invention uses a clutch device in which a continuous gear train is formed to generate a predetermined slip so that the loading and withdrawal operations are smoothly performed, thereby preventing damage when an overload is applied to the gear. In addition, the operation noise can be reduced, and the number of parts can be reduced.

As described above, the present invention configures a gear train as a continuous gear train by using a clutch instead of a conventional discontinuous gear, thereby alleviating damage to the device due to overload and reducing operating noise due to the continuous train. The productivity can be improved by saving the cost.

Claims (6)

A base; A plate which slides on the base and draws the disc into the play position; A holder installed to interlock with the plate to hold the disk or to push the disk out of the set; And a clutch device including a slip gear configured to transmit a power to the plate for retracting the disk, and a slip gear to slip when the gear portion is overloaded. Loading device. The clutch device of claim 1, further comprising: a hinge fixed to the base; A first gear rotatably installed at the hinge; A second gear rotatably installed at the hinge to face the first gear; And a spring for closely contacting the first gear and the second gear. According to claim 1 or claim 2, wherein the clutch device is installed between the second connector gear constituting the gear portion and the first connector gear for transmitting power from the loading motor to the second connector gear so that the slip is made. Disc loading apparatus, characterized in that. The guide groove of claim 1, wherein a guide groove is opened in a straight line at one end of the first plate, and a rib for linearly moving along the guide groove is formed at an upper end of the first holder, and the second holder is formed. Disc loading apparatus, characterized in that fixed to the second plate integrally. The disk loading apparatus according to claim 1 or 4, wherein one side of the second holder for linearly ejecting the disk is formed in a straight line. The disk loading apparatus according to claim 2, wherein the clutch device further comprises a friction pad between the first gear and the second gear.

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