KR910002033Y1 - Loading apparatus of optical disc player using operating motor for pick-up units - Google Patents

Abstract

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Description

Loading device using pickup drive motor of optical disc player

1 is a perspective view showing the configuration of a loading device using a pickup driving motor of the optical disk player of the present invention, Figure 2 is a perspective view showing the main configuration of a loading device using a pickup driving motor of the optical disk player of the present invention, Figure 3 (a) and (b) is a plan view sequentially showing the operating state of the loading device using the pickup drive motor of the optical disk player of the present invention, (a) is a state before loading the tray, (b) is the tray loading is completed and pickup Sliding operation of is showing the state in progress.

Figure 4 is a plan view showing an unloading state of the loading device using a pickup drive motor of the optical disk player of the present invention.

* Explanation of symbols for main parts of the drawings

7a: engaging portion 7b: locking projection

12: operation lever 12a: guide officer

13: coil spring 14: hinge pin

15: movable lever 15a: operating part

16: support 17: recessed part

16a: recessed part

The present invention relates to a loading device of an optical disc player such as a compact disc player (CDP) and an audio disc player (VDP). In particular, the use of the loading motor is driven by the operation of the pickup driving motor for sliding the pickup. The present invention relates to a loading device for an optical disc player that can be used interchangeably.

In a commonly used player, a loading motor for loading and unloading a tray on which a disk is placed on one side of the base is installed, and a pickup driving motor is installed on the other side of the base for sliding of the pickup movable on the guide shaft. It is.

Thus, generally used optical disc player has a loading motor for loading and unloading a tray and a pickup driving motor for moving a pickup, respectively, to perform each operation only.

However, such an optical disc player needs to install both a loading motor for loading and unloading a tray and a pickup driving motor for moving a pickup, so that the production cost of the product is increased and a separate gear train for the deceleration of the loading motor is required. Since the installation of the loading device is complicated, the assembly operation is not easy, and there is a problem such that a large volume of the player is required because a separate space for installing a separate loading motor is required.

Therefore, the present invention has been devised to solve such a conventional problem, by forming A and B racks on both sides of the pickup to engage the A and B pickup pinion gears and elastically supported by one side of the base with a coil spring. The operating lever is connected to the guide lever of the operating lever, and the movable lever interlocked with the movement of the operating lever is connected. The upper surface of the B pick-up pinion gear is formed to engage with the operating lever, thereby picking up the driving of the pickup driving motor. The sliding operation and the loading and unloading operation of the tray is configured to be used as a bar if described in more detail by the accompanying drawings as follows.

As shown in Figs. 1 and 2, the upper guide shafts 2 and 2 'of the base 1 are mounted so that the pick-up 3 is inserted, and A on both sides of the pick-up 3 is provided. A rack 4 and a B rack 5 are formed so that the A rack 4 has an A pick-up pinion gear 6 of a pickup driving motor (not shown), and the B rack 5 has a B pick-up pinion gear. (7) is engaged, the B pick-up pinion gear (7) is coupled to the coupling gear (9) of the power transmission gear (8), the power transmission gear (8) is a rack portion (10a) of the tray 10 And the tray pinion gear 11 engaged with each other to allow the loading operation of the tray 10 and the sliding operation of the pickup by driving the pickup driving motor, and the "a" magnetic actuating lever at one side of the base 1. (11) is affixed to the hinge pin (14) into which the coil spring 13 is inserted, to form a guide hole (12a) of the T-shaped cross-section on one side of the actuating lever 12, the actuating lever (11) Inside The movable lever 15 having the T-shaped actuating portion 15a inserted into the long hole 12a is inserted into the recessed portion 16a of the support piece 16 formed on the other side of the base 1. The batch part 7a is formed at one side of the B pick-up pinion gear 7, and the engaging protrusion 7b is formed at the one side of the movable lever 15 on one side of the upper surface. Reference numerals 17 and 17 'denote rollers and 18 denote turntables, respectively.

Referring to the operation, the effect of the loading device using the pickup drive motor of the present invention optical disk as described above are as follows.

FIG. 3 (a) shows a state immediately before loading of the optical disc player according to the present invention. In this state, the A pickup pinion gear 6 is engaged with the A rack 4 of the pickup B and the B rack. In (5), the engaging portion 7a of the B pick-up pinion gear 7 is located. In this state, if the tray 10 is slightly pushed in the direction of the arrow, the pickup driving motor is operated so that the A pick-up pinion gear 6 rotates counterclockwise, so that the A pick-up 3 is moved to the left.

Therefore, since the B pick-up pinion gear 7 is engaged with the B rack 5 of the pickup 3, the rotational force of the pickup driving motor is transmitted to the tray pinion gear 11 through the coupling gear 9 and the power transmission gear 8. The tray 10 is then loaded.

In this manner, after loading of the tray 10 is completed, as shown in FIG. 3 (b), the engaging portion 7a of the B pick-up pinion gear 7 is positioned on the B rack 5 of the pickup 3. There is no movement of the tray 10, at this time, the pickup (3) is a sliding operation on the guide shaft (2) (2 ') by the continuous drive of the pickup drive motor.

In this way, when the tray 10 is unloaded again after the loading of the tray 10 and the sliding operation of the pickup 3 are completed, the pickup 3 is moved in the direction of the arrow as shown in FIG. When the tip portion of the pickup 3 comes into contact with one side of the actuating lever 12 by slightly pushing the lever, the actuating lever 12 is rotated counterclockwise around the hinge piece 14, and the movable lever 15 is One side end of the movable lever 15 pushes the locking projection 7b of the B pick-up pinion gear 7 while flowing from the recessed portion 16a of the support piece 16, thereby causing the B-pick-up pinion gear 7 to clockwise. Slightly rotated.

Accordingly, the B pick-up pinion gear 7 is engaged with the B rack 5 of the pickup 3 to rotate the A pick-up pinion gear 4 clockwise by driving the pickup driving motor, and the pickup 3 is guide shaft. Sliding to the right along (2) (2 ') and the unloading operation of the tray 10 is performed.

As such, when the pickup 13 is released to one side of the operating lever 12, the hinge pin 14 is returned to its original position by the elastic restoring force of the coil spring 13 inserted therein.

As described above, the optical disc player according to the present invention uses a pickup driving motor for sliding the pickup without using a separate loading motor for loading and unloading the tray. Therefore, the production cost of the product can be reduced, and the gear train for deceleration of the loading motor and the loading motor becomes unnecessary, thereby improving the assembly and productivity of the product, and at the same time, the structure of the loading device is simplified, thereby providing space. This can reduce the size of the player, thereby reducing the size of the player.

Claims (1)

The upper guide shafts (2) and (2 ') of the base (1) are installed, and the pickup (3) is inserted, and the A rack (4) and the B rack (5) are formed on both sides of the pickup (3). The A rack 4 engages the A pick-up pinion gear 6 of the pickup driving motor, the B rack 5 engages the B pick-up pinion gear 7, and the B pick-up pinion gear 7 transmits power. The connecting gear 9 of the gear 8 is engaged, and the power transmission gear 8 is engaged with the tray pinion gear 11 that is engaged with the rack portion 10a of the tray 10 to drive the pickup drive motor. In the loading operation of the tray 19 and the sliding operation of the pickup, the actuating lever 12 is fixed to one side of the base 1 with a hinge pin 14 into which the coil spring 13 is inserted. A guide 1 is formed at one side of the lever 12, and the movable lever 15 having an operating part 15a inserted into the guide hole 12a of the operating lever 12 is provided with a base 1. The other side of In addition to being inserted into the concave inlet portion 16a of the support piece 16 formed on the support piece 16, a bung portion 7a is formed on one side of the B pick-up pinion gear 7, and a movable lever 15. A loading apparatus using a pickup driving motor of an optical disc player, characterized by forming a locking projection (7b) to be caught on one side of the.