JP2623177B2 - Information playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information reproducing apparatus, more specifically, an information reading means for reading information from a compact disk (CD) or the like, which is fixed to an installation base, and the installation base is mounted via a vibration-proof support. The present invention relates to an information reproducing device mounted on a table.

[0002]

2. Description of the Related Art In recent years, optical disks such as CDs have become widespread and research and development thereof have been actively conducted. In the case of reproducing information, since light reads information from a recording medium, the light may be greatly affected by vibration, and various means are provided for alleviating the transmission of vibration to an information reading unit.

FIG. 1 is a sectional view schematically showing a disk reproducing apparatus. The disc 12 is rotated by a turntable drive motor 16, and information stored in the disc 12 is reproduced by the information reading means 11. The information reading means 11 and the turntable driving motor 16 are fixed to a mounting table 14, and the mounting table 14 is mounted on a chassis base 15 via a vibration-proof support 13. Conventionally, anti-vibration support 1 that reduces the effects of vibration
In No. 3, there were a type utilizing elasticity of a spring material or a rubber material, a type utilizing a vibration absorbing property of a sealed gas or liquid, and a type utilizing a magnetic repulsive force.

FIG. 4 shows a cross section of a conventional example utilizing the elasticity of a spring material and a rubber material. A concave portion 17a is formed at a middle portion in the height direction of the columnar member 17, an elastic member 24 is attached to an outer peripheral surface of the columnar member 17, and a spring member 18 is wound around the outer periphery of the elastic member 24. . Spring member 18
The installation base 14 is disposed at a middle portion in the height direction of the elastic member 24 so as to be sandwiched by the police writer washer 23.

In the conventional anti-vibration support section 13 described above, when a force is applied to the chassis base 15 from the left and swings from the left to the right, the movement of the installation table 14 is reduced.
The elastic member 24 is deformed by using the concave portion 17a of the columnar member 17, and the vibration of the installation table 14 is reduced. In addition, when vibration in the vertical direction is applied to the chassis base 15, the vibration of the mounting table 14 is reduced by the spring member 18.

[0006]

In the conventional apparatus, an elastic member 24 is attached to the outer peripheral surface of the columnar member 17, and the amount of deformation of the elastic member 24 due to elasticity is limited.
There is a problem that it is difficult to obtain an excellent vibration damping effect in any of the left, right, up and down directions.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a large amount of deformation due to the elasticity of an elastic member, and has a high anti-vibration effect in any of the front, rear, left, right, up and down directions. It is an object of the present invention to provide an information reproducing apparatus provided with a vibration support section.

[0008]

In order to achieve the above-mentioned object, an information reproducing apparatus according to the present invention provides a light beam to a recording medium.
Illuminated and recorded on the recording medium by the reflected beam
In an information reproducing apparatus in which an installation table to which information reading means for reading information is fixed is mounted on a base via an anti-vibration support section , the anti-vibration support section engages with and supports the installation table. and the lid portion are characterized and the elastic cylindrical member having a bottom, by being configured and a spring member for sandwiching the mount base.

[0009]

According to the above arrangement, in the information reproducing apparatus, the information reading means for reading information from a CD or the like is fixed to the installation base, and the installation base is mounted on the base via the vibration isolating support. Since the anti-vibration support portion is configured to include an elastic tubular member having a lid portion and a bottom portion that engage with and support the installation base, and a spring member that sandwiches the installation base, the elastic tubular member is front and rear. The degree of freedom is large in any of the left, right, up and down directions, and the anti-vibration effect is enhanced in all directions.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an information reproducing apparatus according to the present invention will be described below with reference to the drawings. FIG. 2 is a cross-sectional view showing an anti-vibration support portion 25 of the information reproducing apparatus according to the present invention.
7 a is screwed into a groove 22 formed in the chassis base (base) 15, and the spring receiving piece 2 is
8 is fixed. A lid 20 a made of butyl rubber or silicon rubber and a bottom 20
An elastic tubular member 20 having a b and a concave portion 20c is fitted therein.
8, a spring member 19 is provided, and the spring member 18 and the spring member 19 are supported by a chassis base (base) 15 and a spring receiving piece 28. And these spring members 1
8. A poly slider washer 23 made of polyethylene for sandwiching the mounting table 14 between the spring members 19 is inserted. The mounting table 14 is sandwiched between the spring members 18 and 19 and is fitted and supported in the recess 20c.

FIG. 3 shows a cross section of the anti-vibration support section 13 when the vibration is received from the left side of the chassis base (base) 15. When vibration is received from the left side of the chassis base (base) 15, an inertial force acting to stay on the left side acts on the installation base 14, and the elastic cylindrical member 20 supporting the installation base 14 has its elasticity. Deforms to the left to absorb vibration. Therefore, the vibration transmitted to the mounting table 14 is the chassis base (base) 1
5 is much smaller than the vibration applied to 5.

The spring members 18 and 19 vibrate together with the chassis base (base) 15.
The force exerted by the spring member 19 in the left-right direction of the mounting table 14 is reduced to a negligible level by the polyslider washer 23 having a small frictional resistance. This vibration damping action acts in the same way in both the left and right and front and rear directions.

Next, a case in which a vertical vibration is received will be described. For example, when the chassis base (base) 15 receives a force from above, a downward force acts on the columnar member 17 together with the chassis base (base) 15. At this time, the upper spring member 18 is compressed by the mounting table 14 and the lower spring member 19 is compressed.
The elastic cylindrical member 20 is elastically deformed and the external force is attenuated, and almost no vibration is transmitted to the mounting table 14. The same applies when a force is applied from below.

Therefore, the vibration in the vertical direction is also reduced by the spring member 18,
19 and the elastic tubular member 20 work to reduce vibration.

[0015]

As described in detail above, in the information reproducing apparatus according to the present invention, the information reading means for reading information from a CD or the like is fixed to the installation table, and the installation table is connected via the vibration isolating support. In the information reproducing apparatus mounted on a base, the anti-vibration support portion includes an elastic tubular member having a lid portion and a bottom portion that are engaged with and supported by the installation table, and a spring member that sandwiches the installation table. With this configuration, the anti-vibration effect is enhanced in any of the front, rear, left, right, and up and down directions. Therefore, the vibration reducing effect is enhanced, and accurate information reproduction is possible.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an information reproducing apparatus for explaining a position of an anti-vibration support section.

FIG. 2 is a schematic sectional view showing an anti-vibration support section of the information reproducing apparatus according to the present invention.

FIG. 3 is a schematic cross-sectional view for explaining a state in which vibration is applied to the anti-vibration support section according to the embodiment from the left.

FIG. 4 is a schematic cross-sectional view of an anti-vibration support provided in a conventional information reproducing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Information reading means 12 Compact disk 14 Installation stand 15 Chassis base (base) 18, 19 Spring member 20 Elastic cylindrical member 20a Cover 20b Bottom 25 Anti-vibration support

Claims (1)

(57) [Claims] A recording medium is irradiated with a light beam and reflected by the light beam.
In an information reproducing apparatus in which an installation table to which information reading means for reading information recorded on a recording medium by a beam is fixed is mounted on a base via an anti-vibration support unit , Lid that engages and supports the table
If, the information reproducing apparatus, wherein the resilient cylindrical member, by being configured and a spring member for sandwiching the mount base having a bottom.