KR100614333B1 - Opening and closing structure of Door in Display - Google Patents

Abstract

A door opening and closing structure of a video display device according to an embodiment of the present invention for achieving the object of the present invention, the outer surface of the door having a rotating shaft consisting of a plurality of planes and curved surfaces; A leaf spring for providing a pressing force to the rotating shaft to control the degree of freedom of rotation of the door; A door bracket forming a spring holder for engaging the leaf spring; The door bracket is coupled to the inside, characterized in that it comprises a back cover to form a terminal portion which is opened and closed by the door axially coupled to the door bracket.

According to the present invention, even when the door for opening and closing the terminal part is opened and the external force is removed, the open state due to the pressing force of the leaf spring is continuously maintained, thereby making it easier to connect the USB port or the A / V connector. It is effective to promote sex.

Description

Opening and closing structure of Door in Display}

1 is a partial perspective view showing the back of the conventional video display device.

Figure 2 is an exploded perspective view showing a door structure of a conventional video display device.

Figure 3 is a bottom perspective view showing a combined state of the door structure of the conventional video display device.

Figure 4 is an exploded perspective view showing a door opening and closing structure of the image display device according to the present invention.

Figure 5 is a partial perspective view showing a state in which the leaf spring and the door coupled to the door bracket of the present invention.

Figure 6 is a partial cross-sectional view showing a state that the plate spring and the door coupled to the door bracket of the present invention.

Figure 7 is a schematic view showing the pressing force relationship of the leaf spring applied to the rotary shaft of the present invention.

* Description of the symbols for the main parts of the drawings *

110: back cover 111: center projection

112: bracket fixing boss 113: rotation axis departure prevention part

114: door charging section 115: terminal section

120: door 121: rotation axis

130: door bracket 131: spring holder

132: projection insertion hole 133: center hole

134: fastening portion 135: frame

140: leaf spring 141: pressing plate

142: shaft guide 143: fixing elastic projection

The present invention relates to a door opening and closing structure of an image display device, and more particularly, to a door opening and closing structure for opening and closing a terminal unit provided with a USB port or an A / V connector.

FIG. 1 is a partial perspective view illustrating a rear surface of a conventional video display device. As shown in the drawing, the door 20 is coupled to the top of the back cover 10 of the rear surface of the conventional video display device.

The video display device inputs / outputs a video signal through a peripheral device. For this purpose, a terminal unit (not shown) including a separate USB port or an audio / video connector for connecting a jack from the outside is formed. .

This terminal portion is normally closed and protected by the door 20 as shown in FIG. In addition, the terminal unit as described above is formed on the side or top of the image display device for the convenience of operation.

2 is an exploded perspective view illustrating a door structure of a conventional video display device. As shown in the figure, the door structure of a conventional video display device includes a door 20 having a rotating shaft 21 coupled to a bracket 30. It is made of a configuration that is coupled to the top of the back cover 10 in a state.

At this time, a coil spring 40 having a torsion elasticity is inserted between the rotation shaft 21 of the door 20 and the shaft holder 31 of the bracket 30 to provide a restoring force when the door 20 is opened. .

In addition, a fastening hole 33 for fastening with the back cover 10 is formed on an upper surface of the bracket 30.

3 is a bottom perspective view showing a combined state of a door structure of a conventional video display device. As shown in the drawing, one end 41 of the coil spring 40 is fixed to a spring engaging jaw 22 formed at the end of the rotation shaft 21. The other end 42 is fixed to the spring latching jaw 32 formed at the lower end of the shaft holder 31.

When the door 20 is opened in the structure as described above, a torsional elastic force is applied to the coil spring 40 to restore the door 20.

However, when the conventional technology as described above attempts to connect an external jack to a USB port or an audio / video connector, the door is opened to open the terminal part, which is coupled to the rotating shaft 21 of the door 20. The restoring force of the coil spring 40 is applied, the user has to hold the door 20, there is a problem that the jack connection work.

This is a problem that makes the user cumbersome and inconvenient, and requires a door opening and closing structure so that the user does not have to cumbersomely hold the door and do not connect the jack.

The present invention has been proposed to solve the above problems, an object of the present invention is to open the door for opening and closing the terminal, even if the external force is removed, the door opening and closing structure to maintain the open state by the pressing force of the leaf spring To provide.

Another object of the present invention is to provide a door opening and closing structure to prevent the lifting phenomenon of the door due to the assembly error or the wear of the rotating shaft.

The door opening and closing structure of the video display device according to the present invention for achieving the above object forms a terminal portion consisting of various USB ports or Audio / video connectors for inputting / outputting a video signal, and comprises a door for opening and closing the terminal portion In the image display device, the door is characterized in that the outer surface of the rotating shaft is composed of a plurality of planes and curved surfaces, the rotational freedom is controlled by being coupled to the leaf spring squeezing the outer surface of the rotating shaft.

Here, the outer surface of the rotary shaft is characterized in that formed at least four surfaces or more.

Here, the leaf spring is characterized in that for forming at least two compression plates so that the outer surface of the rotating shaft, at least two or more planes can be compressed at the same time.

In addition, the door opening and closing structure of the video display device according to an embodiment of the present invention for achieving the object of the present invention, the outer surface of the door having a rotating shaft consisting of a plurality of planes and curved surfaces; A leaf spring for providing a pressing force to the rotating shaft to control the degree of freedom of rotation of the door; A door bracket forming a spring holder for engaging the leaf spring; The door bracket is coupled to the inside, characterized in that it comprises a back cover to form a terminal portion which is opened and closed by the door axially coupled to the door bracket.

Here, the outer surface of the rotary shaft is characterized in that formed in more than four surfaces.

Here, the leaf spring is characterized in that for forming at least two compression plates so that the outer surface of the rotating shaft, at least two or more planes can be compressed at the same time.

Here, the leaf spring is the two pressing plate facing each other in the "c" shape, the shaft guide portion so that the rotary shaft is sandwiched between the pressing plate, and the bottom of the connecting portion connecting the two pressing plates in the "c" shape Characterized in that it consists of a fixing elastic projections extending.

Here, the fixing elastic projection is bent in the middle of the extension to the pressing plate "Ｕ" shape is characterized in that the end is formed so as to open a predetermined angle from the pressing plate to have a compressive elastic force.

Here, the door bracket has a frame extending in the longitudinal direction, a spring holder formed so that the leaf spring and the rotating shaft is coupled to the front left and right ends of the frame, and a plurality of appropriately formed on the back of the frame, the back cover and screw fastening It is characterized by consisting of a fastening portion to form each of the screw through holes to be made.

Here, it characterized in that it further forms a projection insertion groove in the spring holder inner bottom so that the fixing elastic projection of the leaf spring can be fit.

Here, a center hole for maintaining the temporary coupling state until the fastening part is fastened to the back cover and the screw is fastened is further characterized in that it is formed on the back of the frame.

Here, the back cover has a bracket fixing boss formed to screw the fastening portion of the door bracket, a door charging portion formed by cutting a lower end of the bracket fixing boss to a certain range, and an image at the bottom of the door charging portion. Characterized in that it comprises a terminal unit for installing a variety of USB ports or Audio / video connectors for input / output signals.

Here, the fastening portion of the door bracket is located on the bracket fixing boss is characterized in that further forming a center projection to maintain the coupled state.

Here, the rotation shaft departure prevention portion is further formed on the left and right sides of the door charging portion is characterized in that the spring holder of the door bracket is blocked.

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

Figure 4 is an exploded perspective view showing a door opening and closing structure of the image display device according to the present invention, Figure 5 is a partial perspective view showing a state that the plate spring and the door coupled to the door bracket of the present invention, Figure 6 is a door of the present invention This is a partial cross-sectional view showing the plate spring and the door coupled to the bracket.

As shown in the figure, the door opening and closing structure of the video display device according to an embodiment of the present invention, the door 120, the leaf spring 140, the door bracket 130, the back cover 110 is composed of.

The door 120 has a rotary shaft 121 at the left and right sides of the door 120, but the rotary shaft 121 has a circular cross section in the past, in the present invention, the rotary shaft 121 has a plurality of planes and curved surfaces It is designed to be done.

At this time, the rotating shaft 121 is composed of four planes, each plane facing each other to be parallel.

Moreover, it is preferable that each plane adjacent to each other forms acute angle and an obtuse angle repeatedly. In particular, the obtuse angle is preferably formed to be 93 ° or more. (See Fig. 7)

The leaf spring 140 is coupled to the rotation shaft 121 to provide a pressing force to the rotation shaft 121, thereby controlling the degree of freedom of rotation of the door 120.

The leaf spring 140 forms two or more compression plates 141 such that two or more planes of the rotation shaft 121 can be compressed at the same time.

Referring to the enlarged view of FIG. 4, the leaf spring 140 includes two pressing plates 141 facing each other in a "c" shape, and a shaft guide for fitting the rotary shaft 121 between the pressing plates 141. Part 142, and the two pressing plate 141 is composed of a fixing elastic projection 143 is formed to extend to the lower end of the connecting portion for connecting the "c" shape.

At this time, looking at the configuration of the fixing elastic protrusion 143, the middle extending to the lower portion of the pressing plate 141 is bent in a "Ｕ" shape is formed so that the end of the pressing plate 141 by a predetermined angle.

When pressing the end of the fixing elastic projection 143 in the above state, a compressive elastic force is generated as a repulsive force against external pressure.

The door bracket 130 serves to couple the leaf spring 140 and the door 120 to the back cover 110 in the axially coupled state.

4 to 6, the door bracket 130 of the present invention includes a frame 135 extending in the longitudinal direction, and a leaf spring 140 and a rotating shaft 121 at left and right ends of the front surface of the frame 135. Spring holder 131 formed to be coupled to, and a fastening portion 134 is formed in a number of suitable rear surface of the frame 135, to form the respective screw through hole 134a to be screwed with the back cover It is composed.

At this time, the spring holder 131 further forms a projection insertion groove 132 so that the fixing elastic projection 143 of the leaf spring 140 can be forcibly fitted on the inner bottom.

In addition, a center hole 133 is further formed on the rear surface of the frame 135 to maintain the temporary coupling state until the fastening part 134 is fastened to the back cover 110 and the screw is fastened.

In addition, the back cover 110 forms a terminal unit 115 having various USB ports or audio / video connectors for inputting / outputting a video signal, and opens a door 120 for opening and closing the terminal unit 115. Using the door bracket 130, to be coupled in the interior.

Referring to FIG. 4, the back cover 110 will be described. A plurality of bracket fixing bosses 112 for screwing the fastening portion 134 of the door bracket 130 are formed.

The lower part of the bracket fixing boss 112 is formed by cutting a predetermined range to form a door charging part 114 to expose the door 120 coupled to the outside.

A terminal unit 115 having various USB ports or audio / video connectors for inputting / outputting a video signal is formed at the bottom of the door charging unit 114.

At this time, the fastening portion 134 of the door bracket 130 is positioned on the bracket fixing boss 112 to further form a plurality of center protrusions 111 to keep the coupling state.

A rotation shaft departure prevention part 113 is further formed at the left and right sides of the door charging part 114, and the spring holder 131 of the door bracket 130 is positioned at the lower end of the rotation shaft departure prevention part 113. The rotation shaft 121 of the 120 is prevented from being separated.

Referring to the assembly process and operation of the present invention made of the above configuration as follows.

First, as shown in FIGS. 5 to 6, the leaf spring 140 is coupled to the spring holder 131 formed in the door bracket 130.

At this time, the fixing elastic protrusion 143 formed to extend below the pressing plate 141 of the leaf spring 140 is pressed into the projection insertion groove 132, the compression elastic force acts, thereby, the leaf spring Departure of 140 is prevented.

Then, the door 120 is coupled to the door bracket 130 in a state where the leaf spring 140 is coupled to the door bracket 130 in a closed state.

At this time, the left and right pressing plate 141 of the leaf spring 140 is to squeeze two planes facing the rotating shaft 121, the door 120 by the pressing force to maintain the closed state. At this time, in order to rotate the door 120 in the open state, an external pressure greater than the compressive force should be applied.

Thereafter, the door bracket 130 to which the door 120 is coupled is fastened from the inner surface of the back cover 110.

At this time, when the center hole 133 formed on the door bracket 130 and the center protrusion 111 formed on the back cover 110 are matched, the fastening part 134 is positioned on the bracket fixing boss 112. The door 120 is exposed to the outside through the door charging unit 114, and the upper part of the spring holder 131 of the door bracket 130 is positioned on the lower surface of the rotation shaft departure preventing unit 113.

In this state, the fastening part 134 of the door bracket 130 is fastened to the bracket fixing boss 112 by using a separate fastening screw.

In this case, a terminal unit 115 having various USB ports or audio / video connectors for inputting / outputting a video signal is formed in front of the door charging unit 114.

The terminal 115 is normally closed by the door 120 installed on the upper part, and when the external jack (jack) is to be connected, open the door 120 to maintain the open state, and performs the jack connection work Done.

At this time, in order to open the door 120, the door 120 must be rotated by applying an external pressure greater than the compressive force of the leaf spring 140 compressing the rotation shaft 121.

When the external pressure to rotate the door 120 is applied, the two pressing plates 141 of the leaf spring 140, which was pressing the plane of the rotary shaft 121 between the two curved surfaces of the rotary shaft 121 If the diameter is widened, and the door 120 is continuously rotated to reach a vertical state, another plane of the opposite rotating shaft 121 is maintained by the pressing plate 141.

Since the open state as described above is maintained until the rotation force greater than the pressing force of the leaf spring 140 is applied, the jack connection operation of the user is much easier.

7 is a schematic view showing the pressing force relationship of the leaf spring applied to the rotation axis of the present invention, as shown in the figure, each plane facing each other of the rotation axis 121 is parallel, and each adjacent plane is acute angle and An example of repeatedly forming an obtuse angle is shown.

At this time, the rotating shaft 121 is formed such that the plane formed in the vertical direction has an inclination of approximately 93 ° with the bottom surface as shown in FIG.

This, the pressing force of the leaf spring 140 is concentrated to act on the acute part of the rotation shaft 121 (F1, F2), and eventually acts as a force (F3) for rotating the door 120 in the bottom surface direction.

The present invention as described above can prevent the lifting phenomenon (state that the door is not completely closed) of the door 120, which may be caused by assembly errors or factors such as wear of the rotary shaft 121 and the leaf spring 140. It becomes possible.

Those skilled in the art through the technical content of the present invention as described above, it can be seen that various changes and modifications can be made without departing from the technical spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

The present invention has the following effects.

First, the present invention opens the door for opening and closing the terminal portion, even if the external force is removed, since the open state by the pressing force of the leaf spring is continuously maintained, it is easy to connect the USB port or the A / V connector, such as the user This has the effect of promoting convenience.

Second, according to the present invention, the vertical plane of the rotating shaft is formed to have a predetermined inclination, thereby preventing the lifting of the door, thereby improving product reliability.

Claims (17)

In the video display device to form a terminal portion consisting of a variety of USB ports or Audio / video connectors for input / output video signals, and to form a door for opening and closing the terminal portion, Each of the rotating shafts provided on the left and right sides of the door is integrally formed with the door, and an outer surface of the rotating shaft is formed of a plurality of planes. In the video display device to form a terminal portion consisting of a variety of USB ports or Audio / video connectors for input / output video signals, and to form a door for opening and closing the terminal portion, Each of the rotating shafts provided on the left and right sides of the door is integrally formed with the door, and the outer surface of the rotating shaft is formed of a plurality of planes and curved surfaces, and is coupled to a leaf spring that compresses the outer surface of the rotating shaft to provide freedom of rotation. Door opening and closing structure of the video display device, characterized in that the control. The method according to claim 1 or 2, Door opening and closing structure of the image display device, characterized in that the outer surface of the rotating shaft is formed at least four. The method of claim 2, The leaf spring is a door opening and closing structure of the image display device, characterized in that for forming at least two pressing plates so that the outer surface of the rotating shaft, at least two or more planes can be pressed simultaneously. door; A rotating shaft formed integrally with the door on the left / right side of the door and having an outer surface formed of a plurality of planes and curved surfaces; A leaf spring for providing a pressing force to the rotating shaft to control the degree of freedom of rotation of the door; A door bracket forming a spring holder for engaging the leaf spring; A back cover coupled to the door bracket to form a terminal part which is opened and closed by a door axially coupled to the door bracket; Door opening and closing structure of the image display device comprising a. The method of claim 5, Door opening and closing structure of the image display device, characterized in that the outer surface of the rotary shaft is formed in four or more. The method of claim 6, And the planes facing each other are parallel to each other, and the planes adjacent to each other repeatedly form an acute angle and an obtuse angle. The method of claim 7, wherein The obtuse angle of the door opening and closing structure of the image display device, characterized in that formed to be more than 93 °. The method of claim 5, The leaf spring is a door opening and closing structure of the image display device, characterized in that for forming at least two pressing plates so that the outer surface of the rotating shaft, at least two or more planes can be pressed simultaneously. The method of claim 9, The leaf spring has two pressing plates facing each other in a "c" shape, an axial guide portion for sandwiching a rotating shaft between the pressing plates, and an extension portion formed at a lower end of a connection portion connecting the two pressing plates in a "c" shape. Door opening and closing structure of the video display device, characterized in that consisting of a fixing elastic projection. The method of claim 10, The fixing elastic projection is a door opening structure of the video display device, characterized in that the end extending in the lower portion of the pressing plate is bent in a "Ｕ" shape to have a compressive elastic force by forming an end thereof to be opened at a predetermined angle from the pressing plate. The method of claim 5, The door bracket has a frame extending in the longitudinal direction, Spring holder formed so that the leaf spring and the rotating shaft is coupled to the front left and right ends of the frame, The door opening and closing structure of the video display device, characterized in that formed in a plurality of suitable places on the rear surface of the frame, the fastening portion for forming each screw through hole so that the screw cover and the back cover. The method of claim 12, Door opening and closing structure of the image display device, characterized in that to further form a projection insertion groove in the spring holder inner bottom for fixing the elastic projection for fixing the leaf spring. The method of claim 12, The opening and closing structure of the video display device, characterized in that the center hole is further formed on the back of the frame to maintain the coupling state until the fastening part is fastened to the back cover and the screw is fastened. The method of claim 5, The back cover and the bracket fixing boss formed to screw the fastening portion of the door bracket, A door charging part formed by cutting a lower end of the bracket fixing boss formed in a predetermined range; A door opening and closing structure of a video display device, comprising a terminal unit having various USB ports or audio / video connectors for inputting / outputting a video signal at a lower part of the door charging unit. The method of claim 15, The door opening and closing structure of the image display device, characterized in that the fastening portion of the door bracket is positioned on the bracket fixing boss to further form a center projection to maintain the coupled state. The method of claim 15, The door shaft opening and closing structure of the image display device, characterized in that the rotation shaft departure prevention portion is further formed on the left and right sides of the door charging portion to block the upper end of the spring holder of the door bracket.

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