KR19980066635U - Reel Table Assembly of Tape Recorder - Google Patents

Abstract

The present invention discloses a reel table assembly of a tape recorder.

In the conventional reel table assembly, not only noise and shock are generated when the reel hub of the cassette is fitted to the boss of the reel table, but also a noise is generated while the cassette is flowed by external shock and vibration.

The present invention has a boss formed in the center of the upper surface of the reel table so as to correspond to each other to the reel hub of the cassette, and a plurality of first guide ribs in which the guide slots of the cassette are fitted on the outer peripheral surface of the boss at equal intervals along the axial direction Each of the second guide ribs is formed to protrude and is elastically deformed along the axial direction so as to be coaxially spaced apart from the first guide ribs at predetermined intervals on the outer circumferential surface of the boss.

Therefore, the noise and impact are prevented by a simple configuration and structure, and the loading of the cassette is accurately and stably performed, and the flow of the cassette due to the external shock and vibration is effectively prevented, thereby significantly improving the reliability of the product. will be.

Description

Reel Table Assembly of Tape Recorder

The present invention relates to a tape recorder, and more particularly, to a reel table assembly of a tape recorder for winding a tape of a cassette.

In general, a tape recorder such as a video cassette recorder (VCR) or a camcorder (recorder) or the like records or reproduces video and audio signals on a tape of a cassette traveling along a certain traveling path of a traveling system.

The traveling system of such a tape recorder is not shown on the deck (Deck) on the supply (Su) and take-up (Tu) side of the head drum (Hd) as shown in FIG. The pole base assemblies Pb for loading the tape Ta of the cassette Ca are respectively located along the unloading holes.

In addition, the driving force of the capstan motor (Cm) is transmitted to the idler assembly (Ia) by a reel gear assembly (Rg), and the supply and take-up by operation of the idler assembly (Id). The supply and take-up reel table (Su-T) (Tu-T) is optionally rotated.

Then, the cassette Ca is seated on the supply of the deck De and the take-up reel table Su-T (Tu-T), and the tape Ta is selectively wound in accordance with the conversion state of each mode. do.

On the other hand, the supply and take-up reel table (Su-T) (Tu-T) is the brake force of the main brake (Bm) and subbrake (Bs) according to the conversion state of each mode It is given and braked.

One example of such a reel table assembly of a conventional tape recorder is shown in Figure 2, the reel table 10 is freely rotatably installed on the post (Dp) of the deck (De), the reel table ( A gear 11 which is engaged with the idler assembly Ia and receives a driving force is formed on the outer circumferential surface of 10).

A boss 12 is formed at the center of the upper surface of the reel table 10, and the boss 12 of the reel table 10 is fitted to correspond to each other on a reel hub Ch of the cassette Ca. A plurality of guide ribs 13 are formed on the outer circumferential surface of the boss 12 at equal intervals, respectively.

In addition, the guide ribs 13 of the boss 12 are fitted to correspond to each other in the guide slot (Cs) formed on the inner circumferential surface of the reel hub (Ch), according to the rotation of the reel table 10 The reel Cr of the cassette Ca is rotated to wind the tape Ta.

However, in the reel table assembly of the conventional tape recorder as described above, noise and shock are generated while the reel hub Ch of the cassette Ca is fitted to the boss 12 of the reel table 10, resulting in increased reliability of the product. There was a problem of deterioration.

That is, when the cassette (Ca) is mounted in a general holder (not shown) and is loaded while descending along a vertical section of the housing (housing), the guide slots (Cs) of the reel hub (Ch) are the boss 12 While hitting the guide ribs 13 of the noise and impact is generated, as well as the cassette (Ca) is unstable seated on the reel table 10 has a problem that the reliability of the product is greatly reduced.

In addition, due to tolerances and assembly errors generated between the guide slots Cs of the reel hub Ch and the guide ribs 13 of the boss 12, the cassette Ca flows due to external shock and vibration, That is, since noise, etc. are generated while shaking, there is a problem that the reliability of the product is greatly reduced.

The present invention is devised to solve the conventional problems as described above, the object of the present invention is to prevent the noise and impact, as well as to prevent the flow of the cassette while the loading of the cassette is accurately and stably performed It is to provide a reel table assembly of a tape recorder to improve the reliability of the product.

1 is a plan view schematically showing a traveling system of a typical tape recorder

Figure 2 is a perspective view showing a reel table assembly of a conventional tape recorder

3 is a perspective view showing a reel table assembly of a tape recorder according to the present invention

4 is a cross-sectional view showing a reel table assembly of a tape recorder according to the present invention.

5 is a perspective view showing an embodiment of a reel table assembly of a tape recorder according to the present invention

♣ Explanation of symbols for the main parts of the drawing ♣

20; Reel table 21; Boss (of reel table)

23; First guide rib 24; 2nd guide rib

25a, 26a; Extensions 25b, 26b; Elastic piece

25c, 26c; Free end De; Deck

Dp; Post Ca (deck); Cassette

Ch; Reel hub Cs; Guide slot

A feature of the present invention for achieving the above object is a reel table assembly of a tape recorder, which rotates around a deck post and selectively winds a tape of a cassette according to the conversion state of each mode, the reel hub of the cassette. A boss is formed in the center of the upper surface of the reel table so as to correspond to each other, and a plurality of first guide ribs, into which the guide slots of the cassette are inserted, is protruded at equal intervals along the axial direction, respectively. And a reel table assembly of a tape recorder, each of which is formed with a plurality of second guide ribs which are elastically deformable along the axial direction such that they are coaxially spaced apart from the first guide ribs.

A more preferable feature of the reel table assembly of such a tape recorder is that the second guide ribs extend in a horizontal direction from the outer circumferential surface of the boss, and an elastic piece capable of elastic deformation in a substantially vertical direction at the end of the extension piece has a free end. The elastic piece is formed to be inclined outward from the boss from the upper side to the lower side. In addition, the second guide ribs are formed to extend in the axial direction on the outer circumferential surface of the boss, the extension piece is formed extending in the radial direction of the boss so that the elastic piece capable of elastic deformation on any one side of the extension piece has a free end, elastic The piece is inclined in the circumferential direction of the boss from the upper side to the lower side.

Hereinafter, one preferred embodiment of a reel table assembly of a tape recorder according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 5 are views for explaining the reel table assembly of the tape recorder according to the present invention, the basic configuration of the tape recorder described in Figure 1 will be described with the same reference numerals.

First, referring to FIG. 1, the driving force of the capstan motor Cm is transmitted to the idler assembly Ia by the reel gear assembly Rg, and the supply and take-up reel table by the operation of the idler assembly Id. (Su-T) (Tu-T) is selectively rotated.

Then, the cassette Ca is seated on the supply of the deck De and the take-up reel table Su-T (Tu-T), and the tape Ta is selectively wound and traveled according to the conversion state of each mode. The supply and take-up reel table Su-T (Tu-T) is braked by applying the brake force of the main brake Bm and the sub brake Bs according to the conversion state of each mode.

3 and 4, the reel table assembly according to the present invention, the reel table 20 is fitted to the post Dp of the deck De, rotatably installed, the outer peripheral surface of the reel table 20 The gear 21 is engaged with the idler assembly Ia to receive the driving force. Here, the reel table 20 is produced by molding a synthetic resin material.

In addition, the boss 22 is formed in the center of the upper surface of the reel table 20 to correspond to each other to the reel hub (Ch) of the cassette (Ca), a plurality of first guide ribs (top) on the outer peripheral surface of the boss 22 ( 23 are protruded at equal intervals along the axial direction, respectively, and the upper portion of the first guide ribs 23 is formed in a substantially triangular shape.

On the other hand, a plurality of second guide ribs 24 are formed along the axial direction on the outer circumferential surface of the boss 22 so as to be coaxially spaced apart from the first guide ribs 23 at predetermined intervals. The 24 are formed to be elastically deformable by a predetermined elastic force.

That is, the second guide ribs 24 are formed with an extension piece 25a extending in the horizontal direction from the outer circumferential surface of the boss 22, and an elastic piece 25b capable of elastic deformation in a substantially vertical direction at the end of the extension piece 25a. ) Is extended to have a free end 25c. The elastic pieces 25b of the second guide ribs 24 are formed to be inclined outward from the boss 22 from the upper side to the lower side.

In addition, the first and second guide ribs 23 and 24 of the boss 22 are fitted to correspond to each other in the guide slots Cs of the cassette Ca, and thus are rotated by the reel table 20. The reel Cr of the cassette Ca is rotated to wind the tape Ta.

Although the first and second guide ribs 23 and 24 of the reel table 20 described above are formed at equal intervals, the number of the first and second guide ribs 23 and 24 is appropriate. It can be changed.

As shown in FIG. 5, the second guide ribs 24 of the reel table 20 are formed on the outer circumferential surface of the boss 22 with an extension piece 26a extending along the axial direction, and any of the extension pieces 26a. An elastic piece 26b capable of elastic deformation is formed in one radially upper portion of the boss 22 so as to have a free end 26c. The elastic pieces 26b of the second guide ribs 22 are inclined in the circumferential direction of the boss 22 from the upper side to the lower side.

Referring to the operating state of the reel table assembly of the tape recorder according to the present invention as described above are as follows.

First, as shown in FIGS. 3 and 4, the reel hub Ch of the cassette Ca is reeled in a process in which the cassette Ca is loaded in a general holder (not shown) and lowered and loaded along a vertical section of the housing. The bosses 22 of the table 20 correspond to each other. At this time, the guide slots Cs of the cassette Ca are guided and inserted into the second guide ribs 24 while being guided by the first guide ribs 23 of the boss 22.

Then, when the guide slots Cs of the cassette Ca are fitted to the second guide ribs 24 of the boss 22, the elastic piece 25b of the second guide ribs 24 is formed of the guide slots Cs. It is elastically deformed in contact with the inner surface.

As the elastic pieces 25b of the second guide ribs 24 are elastically deformed as described above, the guide slots Cs of the cassette Ca are fitted, thereby preventing noise and impact due to the buffering action of the elastic pieces 25b. In addition, the loading of the cassette Ca is performed accurately and stably, which significantly improves the reliability of the product.

In addition, after the guide slots Cs of the cassette Cs are completely inserted into the second guide ribs 24 of the boss 22, the elastic pieces 25b of the second guide ribs 24 are intended to be restored to their original state. The elastic force eliminates tolerances and assembly errors generated between the guide slots Cs and the guide ribs 24.

That is, the second guide ribs 24 are supported on the inner surfaces of the guide slots Cs while the free end 25c of the elastic piece 25b is restored toward the outside of the boss 22. As a result, the reel hub Ch of the cassette Ca is firmly fitted to the boss 22 of the reel table 20, so that the phenomenon in which the cassette Ca flows due to external shock and vibration is effectively prevented. The reliability of is remarkably improved.

As shown in FIG. 5, even when the elastic piece 26b extends in the radial direction of the boss 22 on the extension piece 26a of the second guide ribs 24, the same elastic piece 26b as described above. Not only noise and shock are prevented by the buffering function of the cassette, but also the loading of the cassette Ca is performed accurately and stably, thereby significantly improving the reliability of the product.

In addition, after the guide slots Cs of the cassette Cs are completely inserted into the second guide ribs 24 of the boss 22, the cassette Ca is removed by the elastic force to restore the elastic piece 26b to its original state. The phenomenon of flow caused by external shock and vibration is effectively prevented, which significantly improves the reliability of the product.

On the other hand, the above-described embodiment is merely to describe one preferred embodiment of the present invention, the scope of application of the present invention is not limited to such, and can be changed appropriately within the scope of the same idea. For example, the shape and structure of each component specifically shown in the embodiment of the present invention can be modified.

As described above, according to the reel table assembly of the tape recorder according to the present invention, the noise and impact are prevented by a simple configuration and structure, and thus the loading of the cassette is performed accurately and stably, The flow of the cassette is effectively prevented so that the reliability of the product is remarkably improved.

Claims (3)

In a reel table assembly of a tape recorder, which rotates about a deck post and selectively winds a tape of a cassette according to the transition state of each mode, The boss 22 is formed at the center of the upper surface of the reel table 20 so as to correspond to each other to the reel hub Ch of the cassette Ca. A plurality of first guide ribs 23 into which the guide slots Cs of the cassette Ca are fitted on the outer circumferential surface of the boss 22 are formed to protrude at equal intervals along the axial direction, respectively. A plurality of second guide ribs 24 are formed on the outer circumferential surface of the boss 22 so as to be elastically deformed along the axial direction so as to be positioned coaxially apart from the first guide ribs 23 at predetermined intervals. A reel table assembly of a tape recorder. The method of claim 1, wherein the second guide ribs 24, The extension piece 25a extends in the horizontal direction from the outer circumferential surface of the boss 22, An elastic piece 25b capable of elastic deformation in a substantially vertical direction at the end of the extension piece 25a is extended to have a free end 25c, The reel table assembly of the tape recorder, characterized in that the elastic piece (25b) is inclined outward from the boss (22) from the upper side to the lower side. The method of claim 2, wherein the second guide ribs 24, An extension piece 26a is formed to extend along the axial direction on the outer circumferential surface of the boss 22, An elastic piece 26b capable of elastic deformation is formed on the upper side of one side of the extension piece 26a so as to extend in the radial direction of the boss 22 so as to have a free end 26c. The reel table assembly of the tape recorder, characterized in that the elastic piece (26b) is inclined in the circumferential direction of the boss (22) from the upper side to the lower side.