KR20000013850U - Bottom cover assembly structure of video cassette recorder - Google Patents

Abstract

The present invention relates to a bottom cover assembly structure of a video cassette recorder. Conventionally, since the screw (S) must be fastened in a state where the screw holes 12 of the bottom plate 10a and the through holes 42 of the bottom cover 40 are matched, the work is very cumbersome and complicated to assemble the product. There was a problem that the sex fell significantly.

The present invention provides a main chassis 10. A plurality of slits 13 are formed on the bottom plate 10a of the main chassis 10, and an extension piece 14 extending upward from the bottom plate 10a is formed at one side of the slit 13. A bottom cover 40 is disposed below the main chassis 10, and the bottom cover 40 has a plurality of bent pieces 44 inserted into the slits 13 of the main chassis 10. A coupling protrusion 14a is formed at one side of the extension piece 14, and a coupling hole 46 is formed at the bending piece 44 to engage the coupling protrusion 14a of the extension piece 14. Therefore, since the bottom cover can be assembled to the main chassis with a simple configuration and structure without a separate fastening screw, not only the assembly and workability are remarkably improved, but also the production cost of the product is reduced due to the reduction of the number of assembly parts. have.

Description

Bottom cover assembly structure of video cassette recorder

The present invention relates to a video cassette recorder, and more particularly, to a bottom cover assembly structure of a video cassette recorder to improve product assembly.

In general, a tape recorder such as a video cassette recorder or the like records or reproduces video and audio signals on a tape of a cassette traveling along a certain running path of a traveling system by rotation of a head drum.

As shown in FIG. 1, the assembly structure of the video cassette recorder is a circuit board which is made of a synthetic resin molded body having a substantially box shape, and constitutes an electronic circuit inside the main chassis 10. 15 is provided, and a deck assembly 17 on which recording and reproducing means is mounted is provided on the upper portion of the circuit board 15. Then, the front panel 20 is mounted on the front surface of the main chassis 10, and the top cover 30 and the bottom cover 40 are attached to the upper and lower portions of the main chassis 10 by fastening, respectively.

On the other hand, look at the assembly structure of the bottom cover 40 for the main chassis 10 as follows. First, as shown in FIG. 1, work holes 11 for checking the circuit board 15 are formed in the bottom plate 10a of the main chassis 10, and a plurality of screw holes are formed at the edges of the bottom plate 10a. (12) are formed.

In addition, a bottom cover 40 covering the work hole 11 is mounted on the bottom surface of the main chassis 10. The bottom cover 40 is substantially rectangular and is made of a galvanized steel sheet or a metallic plastic. In addition, through holes 42 are formed at positions corresponding to the screw holes 12 of the main chassis 10, and screws S are fastened to the through holes 42 and the screw holes 12 located on the same axis. do.

Therefore, the bottom cover 40 is assembled by a screw S on the lower surface of the main chassis 10. When the circuit board 15 needs to be inspected, after loosening the screw S, the work hole 11 of the bottom plate 10a is opened to check whether the circuit board 15 is abnormal. .

However, the bottom cover assembly structure of the conventional video cassette recorder as described above is a screw (S) in the state in which the screw holes 12 of the bottom plate (10a) and the through holes 42 of the bottom cover 40 are matched. Since the work is very cumbersome and complicated to tighten, there was a problem that the assembly of the product is significantly reduced. In particular, in order to check the circuit board 15 through the work space 11 of the bottom plate 10a, there is a disadvantage in that the working time is delayed, such as the fastening state of the screws S must be loosened and tightened again.

Therefore, the present invention has been devised to solve the conventional problems as described above, the purpose is to improve the assembly and workability by a simple configuration and structure, the production cost of the product due to the reduction of the number of assembly parts To provide a bottom cover assembly structure of the video cassette recorder to reduce the cost.

1 is an exploded perspective view illustrating a bottom cover assembly structure of a conventional video cassette recorder;

2 is an exploded perspective view illustrating a bottom cover assembly structure of a video cassette recorder according to the present invention;

3 is a cross-sectional view showing the main part of the present invention,

4 is a cross-sectional view showing a modification of the locking means of the present invention.

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

10: main chassis 10a: bottom plate

11: hole 13: slit

14: extension part 14a: engaging projection

14b: inclined portion 40: bottom cover

44: bending piece 46: coupling holes

48: hook

The present invention for achieving the above object is a plurality of slits are formed on the bottom plate, the main chassis is formed with an extension piece from the bottom plate to the upper side on one side of the slit; A bottom cover inserted into a slit of the main chassis and having a plurality of bent pieces in contact with the extension piece and covering a bottom surface of the main chassis; It is composed of a locking means for engaging the bending piece to the extension piece.

Hereinafter, one preferred embodiment of a bottom cover assembly structure of a video cassette recorder according to the present invention will be described in detail with reference to the accompanying drawings (the same configuration as in the prior art will be described with the same reference numerals). ).

2 is an exploded perspective view illustrating the bottom cover assembly structure of the video cassette recorder according to the present invention, FIG. 3 is a cross-sectional view showing the main part of the present invention, and FIG. 4 is a sectional view showing a modification of the locking means of the present invention. to be.

First, as shown in FIG. 1, the main chassis 10 constituting the main body of the video cassette recorder is made of a substantially box-shaped synthetic resin molded body having front and top surfaces, and an electronic circuit inside the main chassis 10. The deck board 17 on which the circuit board 15 and the recording and reproducing means are mounted is installed in this order.

In addition, work holes 11 for inspecting the circuit board 15 are formed in the bottom plate 10a of the main chassis 10, and a plurality of slits 13 are formed at the edge of the bottom plate 10a. . The slit 13 is preferably provided in three places, left and right and rear of the bottom plate (10a). In addition, on one side of the slit 13, extension pieces 14 extending from the bottom plate 10a to the upper portion of the main chassis 10 are formed.

In addition, a bottom cover 40 covering the work hole 11 is mounted on the bottom surface of the main chassis 10. The bottom cover 40 is substantially rectangular, and is made of a galvanized steel sheet or a metallic plastic, and the bent pieces 44 are bent upwards at positions corresponding to the slits 13 of the main chassis 10. Is formed. The bent pieces 44 are inserted into the slit 13 of the main chassis 10 and are in contact with the extension piece 14 formed on one side of the slit 13.

On the other hand, the main chassis 10 and the bottom cover 40, as shown in Figures 2 and 3 has a locking means for engaging the bending piece 44 to the extension piece (14). The locking means is to prevent the bottom cover 40 from being separated from the main chassis 10. The engaging projection 14a is formed at one side of the extension piece 14 of the main chassis 10, and the engaging projection 14a is formed. ) Has an inclined portion 14b that becomes thicker from bottom to top.

The bending piece 44 of the bottom cover 40 is formed with a coupling hole 46 for engaging with the engaging projection 14a of the extension piece 14. Therefore, the bottom cover 40 is assembled without being separated from the main chassis 10 by engaging the engaging projection 14a of the extension piece 14 and the engaging hole 46 of the bent piece 44.

On the other hand, since the inclined portion 14b is formed in the engaging projection 14a of the extension piece 14 as shown in FIG. 3, the bent piece 44 of the bottom cover 40 naturally elastically deforms along the inclined portion 14b. It can be moved and caught on the extension piece (14).

Looking at the assembly method of the present invention having such a configuration as follows. First, the bottom cover 40 is disposed below the main chassis 10. Then, when the bent piece 44 of the bottom cover 40 is inserted into the slit 13 of the main chassis 10 to be in close contact with the main chassis 10, the bent piece 44 of the bottom cover 40 is an extension piece ( Along the inclined portion (14b) formed in the engaging projection (14a) of 14 to move while elastically deforming is in contact with the extension piece (14). At the same time, the engaging projection 14a of the extension piece 14 and the engaging hole 46 of the bent piece 44 are coupled to couple the bottom cover 40 to the main chassis 10.

When the circuit board 15 needs to be inspected, the bent piece 44 of the bottom cover 40 is flipped to one side to be separated from the engaging projection 14a of the extension piece 14, and then the bottom cover 40 is made main. This is to check whether the circuit board 15 is abnormal by disassembling from the chassis 10 and opening the work hole 11 of the bottom plate 10a.

Next, with reference to Figure 4 looks at a modification of the locking means. According to this, in the modified example of the locking means, the hook 48 is formed in the bending piece 44 of the bottom cover 40 as shown in FIG. The hook 48 was cut out on one side of the bent piece 44 and bent to the outside. The hook 48 was caught on the upper surface of the extension piece 14 of the main chassis 10 with its end portion facing downward.

On the other hand, looking at the assembly method of the modified example of the locking means, the bottom cover 40 is disposed below the main chassis 10 as described above. Then, when the bent piece 44 of the bottom cover 40 is inserted into the slit 13 of the main chassis 10 to be in close contact with the main chassis 10, the hook 48 of the bent piece 44 is elastically deformed and pressed. It is inserted along the extension piece 14 of the main chassis 10 in a state. When the insertion is completed in this state, the hook 48 is returned to its original position and the end thereof is caught by the upper surface of the extension piece 14, thereby coupling the bottom cover 40 to the main chassis 10.

When the circuit board 15 needs to be inspected, the hook 48 of the bending piece 44 is pressed to release the jam from the upper surface of the extension piece 14, and then the bottom cover 40 is attached to the main chassis 10. This is to check whether the circuit board 15 is abnormal by opening the work hole 11 of the bottom plate 10a.

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, since the bottom cover assembly structure of the video cassette recorder according to the present invention can be assembled to the main chassis with a simple configuration and structure without a separate fastening screw, not only assembly and workability are remarkably improved, The production cost of the product is reduced due to the reduction of the number of assembly parts.

Claims (3)

A main chassis 10 having a plurality of slits 13 formed on the bottom plate 10a, and an extension piece 14 formed upward from the bottom plate 10a on one side of the slit 13; A bottom cover (40) inserted into the slit (13) of the main chassis (10) and having a plurality of bent pieces (44) contacting the extension piece (14) and covering the bottom surface of the main chassis (10); A bottom cover assembly structure of a video cassette recorder comprising a locking means for engaging the bending piece (44) with the extension piece (14). According to claim 1, The locking means is a coupling projection (14a) formed on one side of the extension piece 14, The coupling hole (46) formed in the bending piece 44 is coupled to the coupling projection (14a) A bottom cover assembly structure of a video cassette recorder, characterized in that According to claim 1, The locking means is a bent to the outside by cutting one side of the bending piece 44, the hook end so that the end is caught on the upper surface of the extension piece 14 of the main chassis 10 A bottom cover assembly structure of a video cassette recorder, characterized in that (48).