KR0118838Y1 - A vibrating absorption device of a compact disk player - Google Patents

Abstract

The present invention relates to a vibration absorbing device of a compact disc player which prevents sound interruption caused by external shocks and speaker vibrations and centers the drive unit during the playback of a compact disc. By centering the drive unit assembly broken by shock and vibration of the speaker as well as by the eccentricity of the shock absorbing spring, the compact disc can be swept to one side and bumped into other structures to prevent noise and sound breakup. It is to provide a vibration damping device of a compact disc player that can be configured, the configuration is a plurality of bosses having a coupling hole formed to protrude upwardly at a predetermined position of the main chassis perpendicularly to the upper center and the lower end portion is compressed on the outer peripheral surface of the boss A plurality of shock springs operably assembled, The louver having a predetermined diameter in the angular portion and having a working hole vertically penetrated and fitted into a plurality of coupling hops formed in the drive unit assembly, a head having a washer shape at the upper end and a screw at the lower end, respectively. In the vibration absorbing device of a compact disk flare comprising a plurality of washer screws through the operating hole of the lower end screwed to the coupling hole of the boss to assemble the drive unit assembly to the buffer operation, the louver is a plane An operation hole having a circular shape having a predetermined diameter and protruding upward and downward in a central portion a predetermined height, and integrally having a complementary protrusion protruding inwardly horizontally with a predetermined width and length at a lower predetermined portion; A coupling jaw portion protruding outwardly with a predetermined width along an outer circumferential surface at a predetermined position of an upper end of the operation hole; It characterized in that the rim is integrally provided with a spring assembly which is formed bent vertically downward with a predetermined width.

Description

Vibration Absorption Device of Compact Disc Player

1 is a schematic cross-sectional view schematically showing a compact disc player employing a general vibration absorbing device.

2 is a partial cross-sectional view showing in detail a conventional vibration absorbing device.

3 is a partial cross-sectional view showing in detail the vibration absorption self-contained value of the present invention.

Figure 4 (a) is a cross-sectional view showing a louver of the present invention.

Figure 4 (b) is a bottom view showing the louver of the present invention.

* Explanation of symbols for main parts of the drawings

30: louver 30-1: operator

30-2: protrusion 30-4: spring assembly

The present invention relates to a vibration absorber of a compact disc player, and more particularly, to a vibration absorber of a compact disc player which prevents sound interruption caused by external shocks and speaker vibrations and centers a drive unit during the playback of a compact disc. will be.

Referring to FIG. 1, the drive unit assembly 19 generally includes a turntable drive mode 14, a turntable 13, an optical pickup (not shown), an optical pickup transport structure and an optical pickup transport motor (not shown). When the disc 10 is disposed on the tentable 13 during the reproducing operation of the compact disc player, the clamper 11 operably supported by the clamper supporting member 12 is lowered. The upper surface of the disk 10 is pressed so that the () () 10 is placed in close contact with the turntable 13. In such a state, the turntable driving motor 14 is driven to rotate the turntable 13, and the sound data recorded on the disc 10 is reproduced by optical pickup and a separate electronic device.

However, when the drive unit assembly 19 is shaken together by an external shock or vibration, the drive unit assembly 19 causes the main unit 18 of the compact disc flare to cause a non-reproducible state such as sound interruption. It is installed to be burned by a vibration absorbing device on the bed.

2 is a cross-sectional view showing in detail a conventional vibration absorbing device.

The conventional vibration absorbing device is composed of a buffer spring (17), a louver (20) and a washer screw (15), the washer screw (15) is a round bar shape having a predetermined diameter in one end washer shape integrally A screw portion 15-2 is formed in a predetermined section of the other end with the head portion 15-1 having the head portion 15-1, and each of the bosses 16 protruding upward at a predetermined position of the main chassis 18 is engaged. Screwed into balls 16-1 and 16-2.

The louver 20 is a synthetic resin material, the plane is circular in shape having a predetermined diameter and the operating hole 20-2 having a predetermined diameter is formed in the center through the vertical direction, the upper end of the operating hole 20-2 A spring assembly 20-3 having a coupling groove 20-1 protruding outwardly horizontally with a predetermined width and having an outer circumferential surface bent downward so as to be in contact with the upper end of the shock absorbing spring 17. Is integrally formed so that the coupling groove 20-1 is assembled from the side to a coupling groove (not shown) formed at a corner portion of the drive unit assembly 19 so that the louver 20 is a drive unit. Assembled to the assembly 19. When the louver 20 having the above configuration is assembled to the drive unit assembly 19, the lower end of the shock absorbing spring 17 is assembled to the outer circumference of the boss 16 from above and the upper end of the louver 20 is assembled. The drive unit assembly 19 is disposed to be disposed at the spring assembly 20-3 formed on the lower surface, and the washer screw 15 is passed through the operating hole 20-2 of the louver 20 to form a boss. The drive unit assembly 19 is elastically supported to absorb vibrations from the main chassis 18 by being screwed into the engaging holes 16-1 and 16-2 of (16).

However, in the conventional vibration absorbing device having the structure as described above, the diameter of the operating hole 20-2 of the louver 20 is larger than the diameter of the washer screw 15 for a shock absorbing effect, and a separate drive Since there is no centering device of the unit assembly 19, the compact disc seated on the turntable 13 is oriented in one direction due to the deviation of the shock absorbing spring during assembly of the drive unit assembly 19, and the compact disc player There was a problem that the noise generated as well as the sound breaks by hitting.

In view of the above problems, the present invention provides a compact disc that is swept to one side by centering the drive unit assembly that is broken by eccentricity of the shock absorbing spring as well as sound interruption caused by external shock and speaker vibration during playback of the compact disc player. An object of the present invention is to provide a vibration absorbing device of a compact disc player that can prevent noise and sound breaks from being hit by a structure.

The present invention for achieving the above object is a plurality of bosses having a coupling hole formed vertically in the center of the upper surface protruding upward in a predetermined position of the main chassis, and a plurality of bosses that can be compressed to the lower end on the outer peripheral surface of the boss A rubber spring, a louver having a predetermined diameter at a central portion thereof and a working hole vertically penetrated to a plurality of coupling hops formed in the drive unit assembly, a head having a washer shape at the upper end, and a screw at the lower end. In the vibration absorbing device of the compact disc player including a plurality of washer screws passing through the operating hole of the louver and the lower end screwed to the coupling hole of the boss to assemble the drive unit assembly to the buffer operation. The louver has a circular shape in which the plane has a predetermined diameter and is predetermined up and down in the center part. The projecting through and forming operation with a plurality of protrusions formed protruding on a lower end of a predetermined position to be horizontally inwardly have a predetermined width and length integrally ball; A coupling jaw portion protruding outwardly with a predetermined width along an outer circumferential surface at a predetermined position of an upper end portion of the operation hole; It characterized in that the rim is integrally provided with a spring assembly which is formed bent vertically downward with a predetermined width.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the subject innovation.

Referring to Fig. 3, reference numeral 18 denotes the main chassis of the compact disc player.

A plurality of bosses 16 protrude upward from a predetermined position at the bottom of the main chassis 18.

The plurality of bosses 16 have a predetermined diameter and a coupling hole 16-1 having a predetermined depth perpendicular to a central portion of the upper surface thereof, and have a predetermined diameter at a lower side of the coupling hole 16-1. ) And a coupling hole 16-2 is formed in which the screw portion is formed on the inner circumferential surface.

The drive unit assembly 19 is elastically supported by the vibration absorbing device on the upper side of the main chassis 18, and coupling holes (not shown) are formed at predetermined positions of the corner portions.

The vibration absorbing device is composed of a plurality of louvers (30), a plurality of buffer springs (17), a plurality of washer screws (15).

The washer screw 15 has an annular rod shape having a predetermined diameter, and has a head portion 15-1 having a washer shape at an upper end thereof, and has a predetermined diameter at a predetermined lower end portion thereof, and has a single screwed portion 15-2 inwardly. Have

The buffer spring 17 is a compression coil spring, the diameter of the upper end is larger than the diameter of the lower end, and the lower end is assembled to the outer peripheral surface of the boss 16 of the main chassis 18, respectively.

4A and 4B are cross-sectional views and bottom views for specifically showing the shape of the louver 30 of the present invention, and as shown here, the louver 30 has a circular shape in which a plane has a predetermined diameter. The operating hole 30-1 having a predetermined diameter is formed in the center portion, and the rim portion has a spring assembly portion 30-4 formed by bending downwardly with a predetermined width portion at the lower surface portion.

The operation hole 30-1 has an upper and lower end portions protruding upward and downward with a predetermined height, and has a predetermined width at a predetermined upper end portion and has a coupling jaw portion 30-3 protruding outward along an outer circumferential surface. A plurality of protrusions 39-2 having a predetermined width and length are protruded horizontally inwardly at predetermined intervals from the lower end.

Hereinafter, the operation and effects of the present invention according to the above construction will be described in detail.

Referring to FIG. 3 again, the shock absorbing spring 17 is operably assembled with the lower end to the outer circumferential surface of each boss 16 protruding from the bottom of the main chassis 18, and the louver 30 The lower surface of the coupling jaw portion 30-3 is fitted into the coupling groove formed in the drive unit assembly 19 to be in close contact with the upper surface.

When the louver 30 and the shock absorbing spring 17 are assembled to the coupling groove of the drive unit assembly 19 and the boss 16 of the main chassis 18, the drive unit assembly 19 is connected to the louver 30. The spring assembly 30-4 is disposed above the main chassis 18 so that the spring assembly 30-4 is in contact with the upper end of the shock absorbing spring 17, and then the washer screw 15 is moved into the operating hole 30-of the louver 30. Passed through 1) is screwed into the coupling holes (16-1, 16-2) of the boss (16).

In this case, the plurality of protrusions 30-2 of the louver 30 are disposed in contact with an upper outer peripheral surface of the screw 15 and an end thereof.

The vibration absorbing device for elastically supporting the drive unit assembly 19 to be absorbed vibration as described above is projected to the lower end of the operating hole 30-1 when the drive unit assembly 19 is only vibrated up and down Since only the ends of the plurality of protrusions 30-2 and the outer circumferential surface of the washer screw 15 which are formed are brought into contact with each other, the frictional force is minimized, thereby hardly affecting the buffering effect of the shock absorbing spring 17.

If the drive unit assembly 19 vibrates only from side to side, the plurality of protrusions 30-2 abut against the outer circumferential surface of the washer screw 15, so that the drive unit assembly is caused by the deviation of the shock absorbing spring 17. The eccentricity of (19) can be prevented certainly.

As evident from the above, the present invention is a plurality of protrusions that the drive unit assembly 19 prevents the eccentricity in contact with the outer peripheral surface of the washer screw 15 at the lower end of the operating hole (30-1) of the louver (30) ( 30-2) is integrally formed to prevent one side eccentricity of the drive unit assembly 19, so that the compact disc 10 is swept to one side due to the eccentricity of the drive unit assembly 19 and the other structure of the compact disc player. It is possible to surely prevent noise and sound interruption caused by bumping.

Therefore, in the present invention, the louver 30 is integrally formed with the plurality of protrusions 30-2 in the operation hole 30-1, and is disposed so as to always be in contact with the outer circumferential surface of the washer screw 15, thereby driving the drive unit assembly 19. It is a very useful design that reliably solves the above-mentioned problems without any increase in production cost or work productivity because it simply prevents eccentricity.

Claims (1)

A plurality of bosses 16, 16-2 and 16-2, which are formed to protrude upwardly at a predetermined position of the main chassis 18, and have coupling holes 16-1 and 16-2 formed vertically in the center of the upper surface, and a lower end portion on the outer circumferential surface of the boss 16. A plurality of coupling hops formed in the drive unit assembly 19 having a plurality of shock absorbing springs 17 which are assembled in a compression-operable manner, and operating holes 20-2 vertically penetrating and having a predetermined diameter in a central portion thereof. A louver fitted to each other, a head portion 15-1 having a washer shape at the upper end, and a screw portion 15-2 at the lower end, and passing through the operating hole 20-2 of the louver, the lower end of the boss ( The vibration absorbing device of the compact disc player including a plurality of washer screws (15) which are screwed into the coupling holes (16-1, 16-2) of the 16) to assemble the drive unit assembly (19) so as to operate in a buffered manner. The louver has a circular shape in which the plane has a predetermined diameter and has a central portion. An operating hole 30-1 integrally having a plurality of protrusions 30-2 protruding upward and downward in a predetermined height and having a predetermined width and length at a lower end and protruding horizontally inwardly; A coupling jaw portion 30-3 protruding outwardly with a predetermined width along an outer circumferential surface at a predetermined position of an upper end portion of the operation hole 30-1; Vibration absorption device of a compact disc player, characterized in that the rim is integrally provided with a spring assembly (30-4) having a predetermined width is bent vertically downward.