KR200155299Y1 - Construction structure of video cassette recorder - Google Patents

Abstract

The present invention discloses an assembly structure of a video cassette recorder.

According to the present invention, the first and second coupling protrusions protrude in a horizontal direction in front of the upper surface, and a boss is formed between the first and second coupling protrusions, and the main protrusion protruding to have a screw hole on the upper surface of the boss. A chassis; A circuit board on which first and second coupling holes into which the first and second coupling protrusions correspond to each other are formed, and a third coupling hole into which the boss is fitted; First and second coupling grooves are formed on the lower surfaces of the first and second posts so as to be fitted into the first and second coupling protrusions, and guide plates are formed to connect the first and second posts to guide the cassette. An arm extends behind the lower surface of the guide plate, and includes a supporter having a through hole connected to the fixing hole so that the fixing protrusion of the boss is inserted at the end of the arm.

Therefore, the strength is reinforced by the simple configuration and structure in which the main chassis and the supporter, and the bottom cover are assembled by fastening, thereby significantly improving the reliability of the product, as well as making the assembly simple and easy, as well as manufacturing and designing. It is easy to improve the productivity of the product.

Description

Assembly structure of video cassette recorder

The present invention relates to a video cassette recorder, and more particularly, to an assembly structure of a video cassette recorder to improve productivity and reliability of a product.

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

In such a video cassette recorder, a main circuit board is horizontally mounted on the bottom of a main chassis, and a front circuit board is vertically mounted on a rear surface of a front panel.

However, when the main and front circuit boards are separated into two, the assembly process and the production cost of the product are increased, so that only one type of circuit board is used. Video cassette recorders are being developed.

As shown in FIG. 1, the assembly structure of the video cassette recorder is made of a synthetic resin molded body of a substantially box-shaped body having a front surface and an upper surface, and two supporter portions on the front surface of the main chassis 10. (spporter parts 11a and 11b) are formed to protrude from each other at a predetermined distance from each other.

In addition, the front panel 12 is mounted on the front surface of the main chassis 10, and a cassette insertion hole 13 is formed on the front surface of the front panel 12 in which a cassette (not shown) is loaded and ejected. do.

A guide rib 14 for guiding the cassette on the rear surface of the front panel 12 extends from the lower portion of the cassette insertion hole 13, and a front loading door in the cassette insertion hole 13. : 15) is mounted to open and close.

On the other hand, the bottom of the main chassis 10 is equipped with a circuit board 16 constituting an electronic circuit, at which time the two through-holes through which the supporter portions 11a and 11b correspond to each other in front of the circuit board 16. Holes 17a and 17b are formed, respectively.

A deck assembly 18 on which recording / reproducing means is mounted on the upper portion of the circuit board 16 is installed by fastening the screws 19, and a front for reinforcing strength on the front upper surface of the deck assembly 18. A front bracket 20 is mounted by fastening, and top and bottom covers 21 and 22 are respectively mounted by fastening on top and bottom of the main chassis 10.

However, the assembly structure of the conventional video cassette recorder as described above is mounted so that the through-holes 17a and 17b of the circuit board 16 are inserted through the supporter portions 11a and 11b of the main chassis 10 so as to pass through the circuit. The substrate 16 has a problem of structural weakness due to the formation of the through holes 17a and 17b.

That is, since the through holes 17a and 17b of the circuit board 16 are formed relatively large, the strength of the circuit board 16 is weakened, so that cracks and breaks are easily generated, and thus the reliability of the product is remarkably lowered. In addition, the utilization area of the circuit board 16 is greatly reduced, which makes it difficult to mount electronic components.

In addition, the supporter parts 11a and 11b and the front panel 12 of the main chassis 10 have a complex structure and management of the mold due to the formation of the guide ribs 14, which causes a problem of lowering the productivity of the product. There was. In particular, the front panel 12 has a problem in that the mold structure becomes weak as the guide rib 14 is formed to a length sufficient to guide the cassette.

The present invention is devised to solve the conventional problems as described above, the object of the present invention is to enhance the strength of the product by a simple configuration and structure, as well as to improve the reliability of the product, the assembly is simple and easy to perform It is to provide an assembly structure of the video cassette recorder to improve the productivity of the product.

1 is a perspective view showing a separate assembly structure of a conventional video cassette recorder;

2 is a perspective view separately showing an assembly structure of a video cassette recorder according to the present invention;

3 is a cross-sectional view showing an assembly structure of a video cassette recorder according to the present invention.

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

30; Main chassis 31,32; First and second coupling protrusions

33; Boss 40; Circuit board

41,42,43; First, second, and third coupling holes 50; Supporter

51,52; First and second posts 51a, 52a; First and second coupling groove

53; Guide plate 55; Arm

60; Front panel 65; Deck assembly

75; Top cover 80; Bottom cover

Features of the present invention for achieving the above object, the main chassis of the approximately box-shaped front and top surface, the circuit board mounted on the bottom of the main chassis to configure the electronic circuit, and is mounted on the front of the main chassis A video cassette recorder having a front panel, a deck assembly mounted on an upper portion of a circuit board, and a top and a bottom cover mounted on upper and lower portions of a main chassis to perform cassette recording and reproduction, wherein the first cassette is placed in front of an upper surface thereof. And a main chassis each protruding in the horizontal direction so that the second coupling protrusion is separated by a predetermined distance, and a boss is formed between the first and second coupling protrusions, and the fixing protrusion protrudes to have a screw hole on the upper surface of the boss; ; A circuit board having first and second coupling holes into which the first and second coupling protrusions of the main chassis are fitted corresponding to each other, and a third coupling hole into which a boss is inserted between the first and second coupling holes, respectively; and; First and second coupling grooves are formed on the lower surfaces of the first and second posts, respectively, so as to be fitted into and coupled to the first and second coupling protrusions of the main chassis, and the first and second posts are guided to each other to guide the cassette. A guide plate is formed to connect the arm, and an arm extends behind the lower surface of the guide plate, and includes a supporter having a through hole connected to the fixing hole of the boss so as to correspond to each other. It is in an assembly structure.

Hereinafter, one preferred embodiment of an assembly structure of a video cassette recorder according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are views for explaining the assembly structure of the video cassette recorder according to the present invention.

First, as shown in FIG. 2, the main chassis 30 is made of a synthetic resin molded body of a substantially box-shaped body having front and top surfaces, and the first and second coupling protrusions 31 in front of the top surface of the main chassis 30. Protrusions 32 are formed in the horizontal direction so that 32 is separated by a predetermined distance.

Through-holes 31a and 32a are formed in the centers of the first and second coupling protrusions 31 and 32, respectively, where the first coupling protrusions 31 are formed in a substantially rectangular shape, and the second coupling protrusions are formed. 32 is formed in a substantially triangular shape.

In addition, a boss 33 is formed between the first and second coupling protrusions 31 and 32 of the main chassis 30, and the fixing protrusion 34 is formed on the upper surface of the boss 33 by a screw hole ( 35).

Meanwhile, a circuit board 40 constituting an electronic circuit is mounted on the bottom of the main chassis 30, and the first and second coupling protrusions 31 and 32 of the main chassis 30 are located in front of the circuit board 40. First and second coupling holes 41 and 42 are respectively formed to correspond to each other, and the main chassis 30 is formed between the first and second coupling holes 41 and 42 of the circuit board 60. The third engaging hole 43 into which the boss 33 of the () is fitted is formed. At this time, the first coupling hole 41 is formed in an approximately square shape, and the second coupling hole 42 is formed in an approximately triangular shape.

In addition, a supporter 50 of a synthetic resin molded body is installed in front of the upper surface of the main chassis 30, and the supporter 50 is spaced apart by a predetermined distance from the first and second posts 51. 52).

First and second coupling grooves 51a which are inserted into and coupled to the first and second coupling protrusions 31 and 32 of the main chassis 30 on the lower surfaces of the first and second posts 51 and 52. ) 52a are formed, respectively, and screw holes 51b and 52b are formed in the center of the first and second coupling grooves 51a and 52a, respectively. At this time, the first coupling groove 51a of the first post 51 is formed in an approximately square shape, and the second coupling groove 52a of the second post 52 is formed in an approximately triangular shape.

The supporter 50 has a guide plate 53 for connecting the first and second posts 51 and 52 to each other and for guiding a cassette (not shown). That is, the supporter 50 has a guide plate 53 formed in a horizontal direction at substantially the center of the first and second posts 51 and 52 so that the first and second posts 51 and 52 and the guide plate ( 53 is integrally formed, and the guide plate 53 extends in a predetermined length toward the front to guide the cassette.

Guide ribs 54a and 54b for guiding both sides of the cassette are formed on both sides of the upper surface of the guide plate 53, and the guide ribs 54a and 54b prevent the cassette from flowing left and right. Accurately loaded and ejected

The supporter 50 has an arm 55 formed at the rear of the lower surface of the guide plate 53, and the fixing protrusion 34 of the boss 33 is fitted to the end of the arm 55 to correspond to each other. 56 is formed, and the through hole 57 is formed in step with the fixing hole 56 in succession.

In addition, the front panel 60 is mounted on the front surface of the main chassis 30, and a cassette insertion hole 61 in which a cassette is loaded and ejected is formed on the front surface of the front panel 60, and the front of the cassette insertion hole 61 is formed. The loading door 62 is mounted to be opened and closed. At this time, the lower portion of the cassette insertion port 61 and the guide plate 53 of the supporter 50 are formed to be positioned on the same horizontal plane, whereby the cassette loaded and ejected through the cassette insertion port 61 is supported by the supporter 50. Guided by the guide plate 53.

On the other hand, the deck assembly 65 is mounted on the upper portion of the circuit board 40, the recording / reproducing means is installed, the deck assembly 65 is a boss 33 of the main chassis 30 in the deck 66 The through hole 68 is formed to enable the screw 67 to be fastened to the screw hole 35 formed in the screw hole 35.

The front bracket 70 for reinforcing strength is mounted on the front upper surface of the deck assembly 65 by the fastening, and the top and bottom covers 75 and 80 are fastened by the upper and lower parts of the main chassis 30 by the fastening. Each is equipped.

At this time, in front of the bottom cover 80, the first and second screws 81 and 82 are formed in the screw holes 51b and 52b formed in the first and second posts 51 and 52 of the supporter 50. ), The first and second through holes 83 and 84 are formed, respectively.

Referring to the assembly state of the assembly structure of the video cassette recorder according to the present invention as described above are as follows.

2 and 3, the first and second coupling holes 41 and 42 of the circuit board 40 are formed in the first and second coupling protrusions 31 and 32 of the main chassis 30. The third coupling holes 43 of the circuit board 40 are inserted into the bosses 33 of the main chassis 30 so as to correspond to each other.

In addition, the first and second coupling grooves 51a and 52a of the first and second posts 51 and 52 are formed in the first and second coupling protrusions 31 and 32 of the main chassis 30. The corresponding fitting is engaged, and the fixing projections 34 of the boss 33 are fitted with the fixing holes 56 of the arms 55 corresponding to each other.

At this time, each of the first and second coupling protrusions 31 and 32 and the first and second coupling grooves 51a and 52a may be formed in a substantially quadrangular shape and a triangular shape, and may be coupled to each other. The fixing protrusion 34 is firmly fitted into the fixing hole 56 of the arm 55 so that the supporter 50 can be effectively prevented from flowing and escaping.

In this state, the screw 67 is inserted into the screw hole 35 of the boss 33 through the through hole 68 and the through hole 57 of the arm 55 formed in the deck 66 of the deck assembly 65. When fastened, the deck assembly 65 is installed along with the supporter 50 on the circuit board 40.

Meanwhile, the first and the second through holes 83 and 84 of the bottom cover 80 and the through holes 31a and 32a of the first and second coupling protrusions 31 and 32 are used. When the first and second screws 81 and 82 are fastened to the screw holes 51b and 52b of the second posts 51 and 52, the main chassis 30 and the supporter 50 are firmly assembled. In addition, the bottom cover 80 is mounted on the lower surface of the main chassis 30.

Therefore, since the main chassis 30, the supporter 50, and the bottom cover 80 are assembled by the fastening of the first and second screws 81 and 82, the assembly is easy and simple, and the productivity of the product is remarkable. Is improved.

When the front panel 60 is mounted on the front surface of the main chassis 30, the cassette loaded and ejected through the cassette insertion port 61 of the front panel 60 is guide plate 53 of the supporter 50. Guided by means of loading and ejection is performed naturally. At this time, the guide ribs 54a and 54b of the guide plate 53 guide the side surfaces of the cassette to prevent the left and right flows.

In this way, the present invention is the first and second coupling protrusions 31 and 32 of the main chassis 30 in a state in which the supporter 50 is manufactured to be assembled by fastening in front of the upper surface of the main chassis 30. Since the first and second coupling holes 41 and 42 of the circuit board 40 are fitted into the circuit board, cracks and breakage of the circuit board 40 can be effectively prevented, thereby improving the reliability of the product.

That is, the first and second coupling holes 41 and 42 of the circuit board 40 can be formed relatively small in size so that the strength of the circuit board 40 can be sufficiently maintained. Efficient use of the area facilitates the manufacture and design of products.

In addition, since the main chassis 30 and the supporter 50 are manufactured separately, the structure and management of a mold for manufacturing the main chassis 30 can be easily improved, thereby improving product productivity. In addition, since the cassette is guided by the guide plate 53 of the supporter 50, the front panel 60 is more easily manufactured and designed, and the mold structure is simplified, thereby improving product productivity.

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 assembly structure of the video cassette recorder according to the present invention, the strength is reinforced by the simple configuration and structure in which the main chassis, the supporter, and the bottom cover are assembled by fastening, thereby significantly improving the reliability of the product. In addition, the assembly is not only simple and easy to perform, but also easy to manufacture and design to improve the productivity of the product.

Claims (6)

A main box of a substantially box-shaped front and top surface, a circuit board mounted on the bottom of the main chassis to form an electronic circuit, a front panel mounted on the front of the main chassis, and an upper part of the circuit board A video cassette recorder having a deck assembly and top and bottom covers mounted on upper and lower portions of the main chassis to perform recording and reproduction of a cassette. The first and second coupling protrusions 31 and 32 protrude in the horizontal direction so as to be separated by a predetermined distance in front of the upper surface, and the boss 33 between the first and second coupling protrusions 31 and 32. Is formed, and the main chassis 30 is formed so that the fixing projection 34 has a screw hole 35 on the upper surface of the boss (33); First and second coupling holes 41 and 42 are formed to respectively fit the first and second coupling protrusions 31 and 32 of the main chassis 30 to correspond to each other. A circuit board 40 having a third coupling hole 43 into which the boss 33 is inserted between the coupling holes 41 and 42; The first and second coupling grooves are formed on the lower surfaces of the first and second posts 51 and 52 so as to be fitted into and coupled to the first and second coupling protrusions 31 and 32 of the main chassis 30. 51a and 52a are formed respectively, and guide plates 53 are formed to connect the first and second posts 51 and 52 to each other so that the cassette is guided, and the rear surface of the guide plate 53 is rearward. An arm 55 extends in the supporter, and a supporter in which a fixing hole 56 and a through hole 57 are formed in succession so that the fixing protrusions 34 of the boss 33 are fitted to each other at the end of the arm 55. 50. An assembly structure of a video cassette recorder, comprising: 50; The video cassette recorder of claim 1, wherein the first coupling protrusion 31 of the main chassis 30 is formed in a substantially rectangular shape, and the second coupling protrusion 32 is formed in an approximately triangular shape. Assembly structure. According to claim 1, Through holes 31a and 32a are formed in the center of the first and second coupling protrusions 31 and 32 of the main chassis 30, respectively, and the first and second coupling grooves. Screw holes 51b and 52b are formed in the center of the 51a and 52a, respectively, so that the first and second screws 81 through the first and second through holes 83 and 84 of the bottom cover 80 are formed. Assembly structure of a video cassette recorder, characterized in that (82) is fastened. The video cassette recorder of claim 1, wherein the supporter (50) has guide ribs (54a) and (54b) for guiding both sides of the cassette on both sides of the upper surface of the guide plate (53). Assembly structure. According to claim 1 or 2, The guide plate 53 of the supporter 50 is characterized in that it is formed on the same horizontal plane with the lower portion of the cassette insertion port 61 formed on the front of the front panel 60. Assembly structure of a video cassette recorder. The through-hole 68 formed in the deck 66 of the deck assembly 65 and the through-hole 57 of the supporter 50 are formed in the screw hole 35 of the boss 33. Assembly structure of a video cassette recorder, characterized in that the screw 67 is fastened through.