JPH0718078Y2 - Anti-vibration device for optical disk player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an anti-vibration device for preventing vibration of a mechanical deck during performance of an optical disk player, and in particular, it is possible to stably fix the mechanical deck to a chassis. The present invention relates to a vibration isolation device for an optical disk player.

[Prior Art] Conventionally, in order to prevent vibration of a mechanical deck including an optical pickup and its feed mechanism and a spindle motor during performance of an optical disk player, the mechanical deck is supported in a floating state with respect to a chassis and moved when not playing. An anti-vibration device was used to fix the mechanical deck to the chassis so as to prevent the impact caused by.

FIG. 5 shows an example of a conventional image stabilizing device for an optical disc player.

The mechanical deck 1 shown in FIGS. 5 (a) and 5 (b) is suspended from the chassis by springs 5,5, and the lock pins 2,2 ... Standing on the side face the cam grooves of the cam plates 3,3. I'm out.

Cam plates 3 arranged on both sides of the mechanical deck 1,
3 is reciprocally moved in the direction A shown in the drawing to fix or not fix the lock pins 2, 2.

FIG. 6 shows another conventional example.

A lock pin 2 erected on the mechanical deck 1 faces a cam groove of a cam plate 3 which is rotatably supported by a chassis in the B direction and is biased in one direction.

The cam plate 3 is driven by a pin 6a of a roller lever 6 rotatably supported by the chassis 4 to fix or not fix the lock pin 2.

[Problems to be Solved by the Invention] The above-described conventional device has a drawback that the mechanical deck is not positioned in the axial direction of the lock pin, and the position is uncertain.

Further, since the lock pin is not restricted in the opening direction of the cam groove of the cam plate, there is a risk that the mechanical deck may come off the cam plate due to a shock during transportation.

The present invention was made in view of the above points,
It is an object of the present invention to provide an anti-vibration device for an optical disc player in which a mechanical deck is completely positioned and fixed.

Another object of the present invention is to provide an anti-vibration device for an optical disk player in which the mechanical deck is not likely to come off from the cam plate due to shock during transportation.

[Means for Solving the Problems] In a vibration isolator for an optical disk player according to the present invention, a mechanical deck equipped with an optical pickup and its feed mechanism and a spindle motor is floatingly held on a chassis by springs and dampers.
In a vibration isolator for an optical disc player, in which a lock pin erected on a mechanical deck is inserted into a hole of a cam plate and the cam plate is moved to make the mechanical deck fixed or non-fixed, the base end of the lock pin The part has a truncated cone shape.

In addition, a mechanical deck equipped with an optical pickup and its feed mechanism and a spindle motor is floatingly held in the chassis by springs and dampers, and the lock pin that is erected on the mechanical deck is inserted into the hole of the cam plate and the mechanical plate is moved by moving the cam plate. In an anti-vibration device for an optical disc player, the lever is driven by the cam plate, and when the mechanical deck is fixed, the lever abuts the lock pin and moves the lock pin. It is configured to regulate the.

[Operation] The cam of the cam plate that fixes or does not fix the lock pin has a narrow groove and a wide open portion of the lock pin restriction portion, and the lock pin is guided from the open portion to the narrow groove by the movement of the cam plate. .

At that time, the conical surface of the base end portion of the lock pin comes into contact with the end surface of the cam plate, and the axial position comes to the normal position.

When the locking pin enters the narrow groove of the cam plate, axial positioning is achieved between the plane of the base frustocone and the side of the cam plate.

Further, when the cam plate moves to the position where the lock pin is fixed, the lever that follows the cam plate comes into contact with the lock pin on the opening side of the cam, and restricts the movement of the lock pin to the open portion.

[Embodiment] A vibration isolator for an optical disc player according to an embodiment of the present invention will be described with reference to the drawings.

In the figure, parts having the same functions as those shown in the conventional example are designated by the same reference numerals.

1 to 3 show a vibration isolator for an optical disk player according to a first embodiment of the present invention.

In the figure, reference numeral 1 is a mechanical deck equipped with an optical pickup and its feeding mechanism and a spindle motor, which is floatingly held on a chassis 4 by springs 5, 5, ... And dampers 7, 7.
However, the spring 5 and the damper 7 arranged at the front are not shown.

There is one lock pin 2 on the left side of the mechanical deck 1,
Two lock pins 2 are erected on the right side surface.

The base end portion of the lock pin 2 has a truncated cone shape having a conical surface 2a and a flat surface 2b, and a cylindrical portion at the tip thereof is inserted through the hole 3c of the cam plate 3 or 3a.

The cam plates 3 and 3a are respectively arranged on the left and right sides of the mechanical deck 1, and are slidably supported by guide pins 4a, 4a ... Standing on the chassis via guide grooves 3b, 3b.

A drive mechanism 10 driven by a motor 9 reciprocally drives the cam plates 3 and 3a between a rear position and a front position shown in the figure.

The disk feed roller 8 is supported by a roller lever 6 which is rotatably supported by the chassis, and is moved up and down through a cam groove 3d by the movement of the cam plates 3 and 3a, and is also rotated by a motor 9 through a gear train. Driven.

The levers 11 and 11 are rotatably supported on the chassis via shafts 4b and 4b, and pins 11a and 11a erected at the rear ends thereof are provided at the rear of the holes 3c and 3c of the cam plates 3 and 3a. Engaged with the groove.

When the cam plates 3 and 3a are in the rear position as shown in the drawing, the lock pins 2, 2 are located in the groove in front of the hole 3c, and are restricted by the lever 11 so that they cannot move from that position.

In this way, the mechanical deck 1 is fixed to the chassis.

After the optical disc is loaded by the disc feed roller 8, the cam plates 3 and 3a are moved forward by the drive mechanism 10, the lock pins 3, 3 ... Are located in the centers of the holes 3c, 3c, and the mechanical deck is in a floating state. .

The disc feed roller 8 is lowered by the cam groove 3d and separated from the optical disc.

The optical disc is played in this state.

At this time, the pin 11a of the lever 11 is guided by the groove at the rear of the hole 3c, the lever 11 rotates, and is separated from the lock pin 3. After the end of the performance, the cam plates 3 and 3a are moved rearward by the drive mechanism 10. Then, the state shown in the figure is obtained.

FIG. 4 shows a second embodiment of this invention.

The lock pin 2 is inserted into the hole 3c of the cam plate 3, and is fixed or not fixed by the movement of the cam plate 3 in the left-right direction.

The pin 11a erected on the lever 11 is a guide groove 4b on the chassis.
And is inserted into the guide groove 3e of the cam plate 3, and is driven in the vertical direction by the movement of the cam plate 3.

When the cam plate 3 fixes the lock pin 2, the lever 11 abuts on the open side of the lock pin 2 to prevent the lock pin 2 from coming off the groove of the hole 3c.

[Advantages of the Invention] The vibration isolator of the optical disk player of the present invention has a simple structure and positions the mechanical deck at a predetermined position without providing a special mechanism.

Therefore, the positioning of the optical disc at the time of loading is surely performed.

In addition, impact resistance during transportation is improved.

[Brief description of drawings]

FIG. 1 is a plan view showing a vibration isolator for an optical disk player which is a first embodiment of the present invention, FIG. 2 is a left side view showing the same embodiment, and FIG. 3 is a right side view showing the same embodiment. FIG. 4 is a side view showing a vibration isolator for an optical disc player according to a second embodiment of the present invention, and FIG. 5 (a) is a plan view showing a conventional vibration isolator for an optical disc player. FIG. 6B is a side view showing a vibration isolation device of the optical disc player, and FIG. 6 is a side view showing another conventional example of the vibration isolation device of the optical disc player. 1 ... Mechanical deck, 2 ... Lock pin, 3, 3a ... Cam plate, 3b ... Guide groove, 3c ... Hole, 3d ... Cam groove, 4 ... Chassis, 4a ... Guide pin, 4b ... Shaft, 5 ... Spring, 6 ... Roller Lever, 7 ... Damper, 8 ... Disc feed roller, 9 ... Motor, 10 ... Drive mechanism, 11 ... Lever, 11a ... Pin.

Claims (2)

[Scope of utility model registration request] 1. A mechanical deck equipped with an optical pickup and its feed mechanism and a spindle motor is floatingly held on a chassis by springs and dampers, and a lock pin erected on the mechanical deck is inserted into a hole of a cam plate to move the cam plate. In the anti-vibration device of the optical disc player, which makes the mechanical deck either fixed or non-fixed,
An anti-vibration device for an optical disk player, wherein a base end portion of the lock pin has a truncated cone shape. 2. A mechanical deck equipped with an optical pickup and its feed mechanism and a spindle motor is floatingly held on a chassis by a spring and a damper, and a lock pin erected on the mechanical deck is inserted into a hole of a cam plate to move the cam plate. In the anti-vibration device of the optical disc player, which makes the mechanical deck either fixed or non-fixed,
An anti-vibration device for an optical disk player, wherein a lever that follows the cam plate is provided, and the lever contacts the lock pin to restrict movement of the lock pin when the mechanical deck is in a fixed state.