KR100463445B1 - Optical disk turn-table - Google Patents

Abstract

The present invention relates to an optical disk turntable, and more particularly, a clamp 12 protrudes upward in a central portion of an upper surface thereof, and a coupling hole 12a coupled to a motor shaft M of a spindle motor at a center of the clamp. The through-hole is formed, and the installation space 12b opened to the bottom is formed inside the clamp, and the boss 12c extends downward in the center of the installation space. A main body formed with the insertion hole 12d penetrating into the installation space; A ring portion 22 having an assembling hole 22a coupled to the boss is provided, and a plurality of tension portions 24 are formed on the outer circumference of the ring portion so as to correspond to the respective insertion holes, and an insertion hole is formed at an end of each tension portion. Bar spring 20 is formed integrally with the clip portion 26 is inserted into the protruding to the outside bar, the present invention is minimized assembling deviation because the clip portion and the tension portion is integrally connected and can be assembled at once, The assembly and productivity are improved, and the cost is reduced because the number of parts is reduced, thereby making the cost competitive.

Description

Optical disk turn-table

The present invention relates to an optical disk turntable, and more particularly, to an optical disk turntable in which a plurality of clips and springs integrally pressurize an inner diameter of the optical disk are integrally formed.

In general, an optical disk driver includes a turntable for clamping an optical disk on a deck panel, a driving means for rotating the turntable, and an optical disk for reproducing or recording information contained in the optical disk while linearly reciprocating along the radial direction of the optical disk. And pickup means for reciprocating the optical pickup.

1 to 3, a clamp 3 for guiding the inner diameter of the optical disk is provided at the center of the upper surface of the turntable main body 1 on which the optical disk D shown as a virtual line is seated. Protrudingly formed, a coupling hole 3a is drilled in the center of the clamp 3 so as to be coupled to the motor shaft M of the spindle motor shown in phantom.

Moreover, the clip 5 is provided in three places at equal intervals of 120 degrees in order to hold | maintain the inner diameter of the optical disc D without shaking, around the outer side of the clamp 3. Here, the clip 5 is elastically pressed by the spring 7 to elastically press the inner diameter of the optical disk.

However, the conventional turntable configured as described above has a problem in that assembly and productivity are deteriorated due to a large number of parts such as a main body, a clamp, a clip, and a spring. That is, as the separate parts are assembled one by one, the work is cumbersome and time consuming, and there is a problem in that work efficiency is deteriorated.

In addition, as the number of parts increases, the cost of the product rises, thereby lowering the cost competitiveness, and since there are separate parts, there is a problem in that a deviation occurs during assembly.

The present invention has been made to solve the problems as described above, the object is to form a plurality of clips and springs integrally to minimize the number of parts, improve assembly and productivity, reduce the cost of the product To provide an optical disk turntable.

In the optical disk turntable according to the present invention for achieving the above object, a clamp is formed to protrude upward in the center of the upper surface, a coupling hole coupled to the motor shaft of the spindle motor is formed through the center of the clamp, and the bottom of the clamp A main body formed with an installation space opened by the opening, a boss extending downward in the center of the installation space, and a plurality of insertion holes penetrating into the installation space at predetermined intervals on an outer circumference of the clamp; A ring portion having an assembly hole coupled to the boss is provided, and a plurality of tension portions are formed on the outer circumference of the ring portion so as to correspond to the respective insertion holes, and a clip portion inserted into the insertion hole and protruding to the outside is integrally formed at each end of the tension portion. It consists of a leaf spring formed.

1 is an exploded perspective view of a conventional optical disk turntable,

2 is a combined bottom view of a conventional optical disk turntable,

3 is a cross-sectional view taken along the line A-A of FIG.

4 is an exploded perspective view of an optical disk turntable according to the present invention;

5 is a combined bottom view of an optical disk turntable according to the present invention;

6 is a cross-sectional view taken along the line B-B in FIG. 5.

◎ Explanation of symbols for main part of drawing

10: main body 12: clamp

12a: mounting hole 12b: installation space

12c: Boss 12d: Insertion Hole

20: leaf spring 22: ring portion

22a: Assemblyman 24: Tension part

24a: bend portion 26: clip portion

26a: first bend 26b: second bend

26c: extension

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view of an optical disk turntable according to the present invention, FIG. 5 is a combined bottom view of the present invention, and FIG. 6 is a cross-sectional view taken along line B-B of FIG.

Referring to this, a clamp 12 for guiding the inner diameter of the optical disk protrudes from the center of the upper surface of the turntable main body 10 on which the optical disk D (shown in phantom) is seated.

A coupling hole 12a is drilled in the center of the clamp 12 so as to be coupled to the motor shaft M (shown in phantom) of the spindle motor, and an installation space 12b opened in the bottom is formed therein. In the center of the boss 12c is formed extending downward, a plurality of insertion holes 12c are formed through the outer periphery of the clamp at a predetermined interval.

At this time, the insertion hole (12c) is preferably formed in three places at equal intervals of 120 °.

The leaf spring 20 is assembled to the installation space 12b of the clamp 12.

The leaf spring 20 includes a ring portion 22 having an assembling hole 22a coupled to the boss 12c, and a plurality of tension portions 24 extending to correspond to the respective insertion holes 12d at the outer circumference of the ring portion. It is composed of a clip portion 26 which is integrally formed at the end of each tension portion and protrudes outward through the insertion hole 12d.

Here, the tension portion 24 is preferably formed in three places at equal intervals of 120 degrees so as to correspond to the insertion hole 12c.

In addition, the tension portion 24 has a concave-convex bent portion 24a formed at an intermediate portion thereof, and the bent portion has an elastic force while being bent when pressure is applied in the inner radial direction.

Each of the clip portions 26 includes a primary bent portion 26a that is bent upwardly outward at an end portion of the tension portion 24 and a secondary bent portion that is bent upwardly inward again at an end portion of the primary bent portion. A portion 26b and an extension portion 26c extending horizontally from the end portion of the secondary bent portion by a predetermined length and seated on the upper surface of the clamp 12 are included.

In addition, the portion bent from the first bent portion 26a to the second bent portion 26b is rounded to smoothly guide the inner diameter of the optical disk D coupled to the clamp 12.

Now, the assembly and action effects of the present invention thus constructed will be described.

First, in order to assemble the leaf spring 20 to the installation space 12b of the main body 10, grasp each of the clip portions 26 and pinch the tension portion 24 inwardly, and then through the assembling holes 22a. Insert into boss 12c. Then, each clip portion 26 is arranged to be inserted into the corresponding insertion hole 12d, and then the applied force is removed.

Then, while the tension portion 24 is unfolded by the restoring force, the clip portion 26 protrudes out of the clamp 12 through the insertion hole 12d. Then, the assembly is completed by allowing the extension portion 26c of each clip portion 26 to rest on the upper surface of the clamp 12.

The assembled leaf spring 20 supports the clip 26 when the optical disk D is inserted into the clamp 12 so as not to be easily separated by pressing the inner diameter of the optical disk.

That is, the optical disk is inserted into the clamp to press the clip portion 26, the clip portion 26 pressurizes the tension portion 24 while being pressed inward in the radial direction, the tension portion 24 is bent portion ( The end of 24a) is bent and deformed. Then, the tension portion 24 elastically presses the clip portion 26 radially outward by the restoring force, which causes the clip portion 26 to press and support the inner diameter of the optical disk.

As such, the present invention reduces the number of parts because the tension part 24 and the clip part 26 are integrally formed, and thus, the cost of the product is reduced, thereby making it cost competitive compared to other products.

In addition, since the assembly is possible at one time, the assembly is excellent, thereby improving work efficiency and increasing productivity. In addition, the deviation of the clip can be minimized as compared to the conventional product of assembling each clip individually, thus bringing about stabilization of the quality of the product.

In addition, since the overall structure of the turntable is simple compared to the conventional, there is an advantage that can be compactly reduced to the overall size.

As described above, in the present invention, since the clip portion and the tension portion are integrally connected, assembly can be performed at one time, thereby minimizing assembly deviation, improving assembly and productivity, and reducing the number of parts, thereby reducing the cost and making the cost competitive. It is effective.

Claims (5)

A clamp is formed to protrude upward in the center of the upper surface, and a coupling hole coupled to the motor shaft of the spindle motor is formed in the center of the clamp, and an installation space is opened in the bottom of the clamp. A boss extending downwardly and having a predetermined interval at the outer circumference of the clamp, a plurality of insertion holes penetrating into the installation space; A ring portion having an assembly hole coupled to the boss is provided, and a plurality of tension portions are formed on the outer circumference of the ring portion so as to correspond to the insertion holes, and a clip portion is inserted into the insertion hole and protrudes outward at an end of each tension portion. An optical disk turntable comprising an integrally formed leaf spring. The turntable of claim 1, wherein each of the tension parts has a bent portion formed in an uneven shape at an intermediate portion thereof, and the bent portion is bent and has an elastic force when pressure is applied in an inner radial direction. The method of claim 1, wherein each of the clip portion of the primary bent portion bent upwardly outwardly at the end of the tension portion, the secondary bent portion bent upwardly inward again at the end of the primary bent portion, and secondary bending An optical disk turntable comprising an extension portion formed horizontally extending from an end portion of the portion and seated on an upper surface of the clamp. 4. The turntable of claim 3, wherein the portion bent from the first bent portion to the second bent portion is rounded. The optical disk turntable of claim 1, wherein the insertion hole and the tension part are formed at three positions with an equal interval of 120 degrees.