KR940005724Y1 - Digital compact cassette - Google Patents

Abstract

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Description

Digital Compact Cassette

1 is a perspective view of a digital compact cassette to which the present invention is applied.

2 is a bottom perspective view of an applied digital compact cassette of the present invention.

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

FIG. 4A is an enlarged cross-sectional view of portion B of FIG. 3, and FIG. 4b is an enlarged cross-sectional view of portion C of FIG.

FIG. 5 is a cross-sectional view for explaining a conventional guide means of a digital compact cassette, FIG. 5A is an enlarged cross-sectional view of portion B of FIG. 3, and FIG. 5B is an enlarged cross-sectional view of portion C of FIG.

* Explanation of symbols for main parts of the drawings

1: case 2: shell up

3: shell down 4: shutter

5: top plate 6, 7: guide groove

8, 9: guide protrusion

The present invention relates to a digital compact cassette, and more particularly, to prevent dust and dust generated during sliding of the shutter left and right, thereby preventing contamination of the built-in tape, thereby enabling excellent sound recording and reproducing. The present invention relates to a digital compact cassette that can simplify production and improve productivity and reliability of a product.

As is well known, digital compact cassettes have the basic format and advantages of conventional audio cassettes: easy to handle, shock resistant, low cost, light and easy to record and play music anywhere, anytime. In the recording and reproducing method, it is digital media of digital recording and reproducing method which can reproduce the clear sound quality as a compact disc.

Such a digital compact cassette has a case (1) forming an outline with a shell up (2) and a shell down (3) as shown in FIGS. 1 and 2, and left, When the cassette is loaded to the right side and the cassette is loaded on the deck, the shutter 4 moves to one side by the release rod formed on the deck and exposes the tape stored in the inside of the case 1 and its taped hub ball. The upper plate 5 is disposed on the upper surface and the rear side of the case 1 and is a transparent member to which a label is attached thereto.

In such a digital compact cassette, the present invention relates to a structure of a shutter that is opened while sliding to one side when the cassette is loaded, and closed by return sliding by a built-in spring member at the time of withdrawal.

That is, the shutter is provided with a guide means to ensure that the operation is made correctly during the left, right sliding operation.

As a general guide means by forming a guide groove at a predetermined position of the shell up and shell down, and by forming a guide protrusion inserted into the guide groove in the shutter, the guide projection is moved along the guide groove when the shutter is moved. I am trying to.

The prior art of the above-described guiding means will be described with reference to FIG.

5A illustrates a coupling relationship between the upper end of the shutter 4 and the shell up 2, and the guide protrusion 52 of the shutter 4 inserted and guided into the guide groove 51 formed in the shell up 2. Is simply formed by means of bending downward of the tip of the shutter 4, and FIG. 5b shows the coupling relationship between the lower side of the shutter 4 and the shell down 3, Guide protrusions 54 inserted into the guide grooves 53 formed are commonly formed by means of cutting three times at a predetermined position of the bottom surface of the shutter 4 and bending the other one upward.

However, in the case of forming the guide means as described above, when the shutter slides left and right, the function of the shutter is precisely made while the guide protrusion moves along the guide groove, but it does not pose any problem, but it is formed of metal material. As the guide protrusion of the shutter having a sharp tip is continuously rubbed with the guide grooves of the shell up and the shell down formed of the synthetic resin material, the guide groove of the shutter is worn down to generate a small amount of dust and debris.

As a result, dust and debris generated are inevitably adsorbed on the tape generating static electricity, which damages the tape and shortens its lifespan. A separate process for processing is added to impair the productivity.

Therefore, the present invention is devised to solve the problems of the prior art, the object of the present invention is to prevent the contamination of the built-in tape by preventing the generation of dust and dust generated when the left and right sliding of the shutter, excellent sound It is to provide a digital compact cassette which enables recording and reproducing of the device and simplifies the production of the shutter, thereby improving productivity and reliability of the product.

In order to realize this, the present invention is a case formed by shell up and shell down, and the left and right sliding strongly installed on the front portion of the case is moved to one side by a release rod formed on the deck tape is stored inside the case A well-known digital compact cassette comprising a shutter exposing its taped hub hole and a top plate which is a transparent member attached to the upper surface and the rear side of the case and to which a label is attached, wherein the shell-up and Coupled to the guide grooves formed on the upper and lower surfaces of the shell down is characterized in that the guide projection of the shutter to guide the left and right movement of the shutter rounded.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention capable of realizing the above object in detail as follows.

1 and 2 are a perspective view and a bottom perspective view of a digital compact cassette to which the present invention is applied, and the shell up (2) and the shell down (3) are not shown to form the upper and lower covers of the tape to be embedded. It is combined by a known coupling means that is one case (1).

And the front of the case (1) is installed to be slidable left and right, when the cassette is loaded on the deck is moved to one side by the release rod formed on the deck and the tape is stored inside the case (1) The hub side on the deck can be exposed to be inserted into the hub hole by exposing the rolled hub ball. On the contrary, when the cassette is taken out, the hub ball and the tape are exposed to the outside while being automatically moved back by a spring member (not shown). A shutter 4 which is a metal member for preventing is formed.

It is also composed of an upper plate 5, which is a transparent member which is disposed on the upper surface and the rear side of the case 1 and protects the label paper for recording the information recorded on the tape.

In such a digital compact cassette, the present invention is coupled to the guide grooves 6 and 7 formed in the shell up 2 and the shell down 3 so that an accurate operation is performed when the slide of the shutter 4 moves left and right. The guide projections 8 and 9 of the shutter 4 are rounded by press working as in FIGS. 3 and 4.

The curvature of the roundly formed guide protrusions 8 and 9 may be sufficient to be inserted into the guide grooves 6 and 7 by the elasticity of the shutter 4, which is a metal material.

As such, when the guide protrusions 8 and 9 are rounded, the guide grooves 6 and 7 are rubbed compared to the conventional sharp guide protrusions 53 and 54 and thus do not generate dust and debris. Will not.

Therefore, since the shell up (2) and the shell down (3) is not concerned about the contamination of the tape caused by the dust and the residue generated by the sliding movement of the shutter (4), it is possible to hear a good sound without damaging the tape Improve the reliability of the product.

And it is a useful design to improve the productivity by the easy processing of the guide projections (8) (9) at the time of manufacturing the shutter (4).

Claims (1)

The case 1 is formed by the shell up (2) and shell down (3), and the left and right slidingly installed on the front portion of the case 1 is moved to one side by a release rod formed on the deck of the case Shutter 4 for exposing the tape stored therein and the hub ball wound thereon, and an upper plate 5 which is disposed on the upper and rear sides of the case 1 and is a transparent member attached to the label paper. In the well-known digital compact cassette comprising a guide groove (6) (7) formed on the upper and lower surfaces of the shell up (2) and shell down (3), the left and right movement of the shutter (4) A digital compact cassette characterized in that the guide projections (8) and (9) of the guiding shutter (4) are rounded.