KR101664838B1 - Portable Smart Roadsign - Google Patents

Abstract

The present invention relates to a portable smart road sign capable of installing light emitting units in a reference frame and an extension frame to include a gap; preventing fall of the light emitting units generated by external influence such as wind or the like; and clearly irradiating light of LEDs with sunlight in the daytime by upwardly and downwardly controlling a light emitting panel through an angle controlling agent. The portable smart road sign comprises: a supporting unit which includes a control unit to be connected to an external terminal; a frame unit which is rotated with the supporting unit, is vertical to an upper part of the supporting unit, or is horizontal to the supporting unit; and light emitting units which are installed in the frame unit to include a length in a horizontal direction, are installed to include the gap for vertically penetrating the wind, and are emitted by being electrically connected to the control unit.

Description

Portable Smart Roadsign {Portable Smart Roadsign}

The present invention relates to a load sign, and more particularly, to a load sign installed in a reference frame and an extended frame so as to have a gap therebetween so as to prevent collapse due to external influences such as wind or the like, And the light emitted from the LED can be clearly illuminated by the sunlight during the daytime.

In general, the load sign is used for conveying contents to the outsider by using the display information of characters or images in a state (stand type) standing on the ground such as a construction site or a performance hall, The display information is printed on the outer surface of the plate-shaped signboard and the rear of the signboard is supported by a support. In recent years, however, regardless of the day or night, more display information is transmitted and the visual interest is increased A trend of using a plate-shaped electronic signboard using an LED as in the prior art of 'mobile billboard' which is Korean Registered Utility Model No. 20-0468371 (notice: 2013.08.16) shown in FIG. 1 for easy recognition by others to be.

However, although the conventional portable billboard having such a movable stand type is easy to install, it can easily collapse due to external influences such as wind or the like when it is installed outdoors, and may be damaged by the sunlight There is a problem that it is difficult to transmit the contents of the accurate display information to others because the illumination of the emitting LED is reduced.

DISCLOSURE Technical Problem The present invention has been proposed to solve the above-mentioned problems, and it is an object of the present invention to provide a load sign which is easy to bear even under the influence of wind when the load sign is installed outside, It has its purpose.

In order to solve the above-mentioned technical problems, the portable smart rod sign according to the present invention includes a support part having a control means therein so as to be connectable with an external terminal, a lower part rotatably engaged with the support part, A frame portion provided to be overlapped with the support portion and a plurality of adjacent portions provided to the frame portion so as to have a length in a horizontal direction so as to form a gap through which the wind passes in a vertical direction, A light emitting panel having a tubular shape with open sides on both sides, a semi-circular curved surface portion at the rear side and a plurality of exposure holes adjacent to each other in the longitudinal direction at the front side; And is inserted in the longitudinal direction in the inside thereof, A light emitting panel having a light emitting diode at a position where the light emitting panel is connected to the light emitting panel, a light emitting panel having one side inserted into the light emitting panel to be connected to the light emitting board, And a through hole is formed in the rear of the connecting jack so as to be rotatably fitted into the curved surface portion. The through hole is formed in the rear of the connecting jack so as to be vertically movable along the frame portion, And an angle adjusting body provided in a pair.

In addition, the support part may have a hollow shape having an installation space formed therein, and a support hinge having a first hinge for rotatably engaging with the frame part, And a support bar rotatably engaged with the support body and forwardly drawn out of the retention groove by rotation to support the support body, wherein the support bar is provided at the rear of the support bar, And a support pin protruded downward due to the elastic force of the elastic body and being supported on the ground surface. The support pin is guided by an inclined surface having a predetermined angle to the bottom surface of the receiving groove when being stored in the receiving groove, .

And the frame part is composed of at least two powders so as to be rotatably connected to each other by a second hinge, the frame part being rotatably coupled to the upper part of the support part, wherein the plurality of light- And an auxiliary display member connected to the control means on the main display member and having a plurality of light emitting portions or plate-shaped electric display plates which are formed to allow the gap to emit light .

The main display member may include a frame having a square frame shape in which the light emitting member is provided, the frame having a lower portion rotatably coupled with the upper portion of the support portion, and a rectangular frame A fixing frame formed on each of opposing surfaces of the reference frame and the extended frame and having the light emitting portion inserted and fixed therein; And a control unit for controlling the control unit so that the light emitting unit is moved in a direction perpendicular to the reference frame and the extended frame, So that the distance of the gap can be adjusted. That a guide is provided so that it is preferable.

The main display member may further include fixing means for fixing the reference frame and the extension frame vertically installed on the upper portion of the support portion, wherein the fixing means includes a first groove formed in the longitudinal direction on the outer surface of the reference frame, A second groove formed in the lower portion of the outer surface of the enlarged frame in a longitudinal direction so as to be symmetrical with the first groove and having a protruding jaw portion adjacent to the first and second grooves, Wherein the length of the second groove is shorter than the length of the first groove and the length of the fixing pin is smaller than the length of the first groove, So that interference does not occur between the reference frame and the extension frame.

Further, it is preferable that the display panel further includes an insertion hole to which a display panel is fixed by fastening means on an outer surface of at least one of the reference frame and the extension frame, wherein the display panel has a plate shape, It is preferable that the display information is printed.

According to the present invention, the light emitting portions provided in the reference frame and the extended frame, respectively, are provided so as to have a clearance different from the conventional one, and have an effect of preventing collapse due to external influences such as wind.

Also, since the light emitting panel can be adjusted up / down through an angle adjuster differently from the conventional one, the light emission of the LED can be vividly illuminated by the sunlight in the daytime.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view of a conventional portable billboard; Fig.
Figure 2 shows a portable smart rod sign according to the present invention.
3 shows a support of a portable smart rod sign according to the invention.
4 is a view of a support bar of a portable smart rod sign according to the present invention.
5 is a cross-sectional view taken along line AA 'of FIG. 3;
6 is a view showing that a support bar of a portable smart rod sign according to the present invention is inserted into a receiving groove;
7 is a view showing a main display member mounted on a support body of a portable smart rod sign according to the present invention.
8 shows a frame part of a portable smart rod sign according to the present invention.
9 is a view showing a state in which a main display member is superimposed on a support body of a portable smart rod sign according to the present invention.
10 is a perspective view of Fig.
11 is a view of a means for securing a portable smart rod sign according to the present invention.
12 is a view showing a subsidiary connector and an auxiliary display member of a portable smart rod sign according to the present invention.
13 to 16 are views showing another embodiment of the main display member of the portable smart rod sign according to the present invention
17 is an enlarged perspective view showing a light emitting portion of a portable smart rod sign according to the present invention coupled to a frame portion.
18 is an exploded perspective view showing a light emitting portion of a portable smart rod sign according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a portable smart rod sign (hereinafter, simply referred to as a 'load sign') according to the present invention will be described in detail with reference to the accompanying drawings. The control means 400 described in the detailed description of the present invention operates through an external power source or a rechargeable battery or the like, and the plurality of LEDs 321 are individually It is to be noted that the description of the basic configuration is omitted so as not to obscure the gist of the present invention.

Although the present invention has been described in detail in connection with the case where the road sign 1 is used in a construction site, it may be installed in a public place such as a performance hall, a subway or a bus stop, And the like.

2, the load sine 1 according to the present invention mainly includes a support unit 100, a frame unit 200, and a light emitting unit 300 having a control unit 400. As shown in FIG.

3 to 7, the supporting part 100 includes a frame part 200 provided with a light emitting part 300 to be described later to be displayed, And includes a support body 110 and a support bar 120 in a structure for supporting the frame part 200 so as not to collapse.

In addition, the display information means contents such as a character or a visual image that the pedestrian or the driver can visually recognize that the road construction is being performed ahead.

Here, the support body 110 is formed in a shape having an installation space portion 111 in which a control means 400 is provided. In the upper portion, the main display member 210 is rotated by the first hinge 112, And on both side surfaces thereof, a receiving groove 113 in which the supporting bars 120 are accommodated is formed in the longitudinal direction. At this time, the bottom surface of the receiving groove 113 is formed with an inclined surface 114 having a predetermined angle so that the supporting pin 122 can be automatically inserted into the supporting bar 120 when the supporting bar 120 is received .

A pair of casters are rotatably installed on the rear lower portion of the support body 110 so that the support body 110 can be moved. A handle is provided on the front of the support body 110 so that the operator can grip the support body 110 and move the support body 110 easily. .

Further, a plurality of reflection plates are provided on the outer surface of the supporting body 110 so that the light emitting unit 300 can be illuminated when the light emitting unit 300 is not illuminated at night, and the installation space 111 is rotatably mounted on the support body 110 And can be opened and closed by a lid formed by cutting so that the maintenance of the control means 400 is facilitated (see FIG. 3).

A magnet M1 may be provided on the support body 110. When the reference frame 211 is overlapped with the upper portion of the support body 110 in parallel with each other, The reference frame 211 is fixed. Of course, this is merely an example, and it is also possible to fix the reference frame 211 by a cover (not shown) provided to cover the band or the upper part of the supporting body 110 in addition to the magnet M1 (See Fig. 9)

In addition, the magnet M1 is formed on the upper surface of the protrusion protruded upward from the upper portion of the support body 110 so that the reference frame 211 can be fixed to the support body 110 in parallel with the support body 110, The auxiliary connector 217 is supported so that the reference frame 211 and the extended frame 212 are arranged in the shape of '∧' so that the display information can be identified in both the front and rear directions (see FIG. 7).

The supporting bars 120 are formed to have a predetermined length so as to be accommodated in the receiving grooves 113 formed on both sides of the supporting body 110 and are rotatably and axially coupled to the supporting body 110 at the front, And a support pin 122 is provided on the rear side so that it can be drawn out to the outside of the receiving groove 113 by rotation. At this time, the support pin 122 is automatically drawn out downwardly when drawn out of the receiving groove 113 by the elastic force of the elastic body 121 provided inside the support bar 120 so as to be supported on the ground G And is preferably inserted into the support bar 120 automatically by the inclination of the inclined surface 114 when stored in the storage groove 113 (see FIG. 6).

The angle of rotation of the support bar 120 is set to be at least 90 to 150 degrees so that the rear of the support bar 120 can be positioned in front of the frame 200, So that the frame unit 200 is prevented from collapsing due to external influences such as load or wind of the frame unit 200 provided with the light emitting unit 300. Reference)

8 to 17, the frame unit 200 includes a plurality of light emitting units 300 mounted on the support unit 100 so as to be controlled by the control unit 400, The light emitting portion 300 of the main display member 210 and the sub display member 210 may be formed as a plate having a generally plate shape so that the display information is expressed, (220) and fixing means (230).

Here, the main display member 210 is a structure for displaying display information through the light emitting unit 300 and includes a reference frame 211, an extension frame 212, a fixing member 214, a connector 215 A guide 216, and an insertion hole 213. As shown in Fig.

As shown in FIG. 8, the reference frame 211 and the extension frame 212 are each formed to have a square frame shape so that the light emitting unit 300 can be installed in the horizontal direction. At this time, it is preferable that each of the reference frame 211 and the extension frame 212 is formed detachably by a fastening means so that the luminescent panel 310 installed therein can be easily installed.

The lower part of the reference frame 211 is rotatably coupled by a first hinge 112 provided on the upper part of the support body 110. The lower part of the extension frame 212 is coupled to the reference frame 211 by the second hinge 240. [ 211). At this time, the size of the reference frame 211 or the extension frame 212 is formed to be large enough not to protrude to the outside when the support frame 110 is superimposed on the support body 110, It is preferable that the rotation directions of the reference frame 211 and the extension frame 212 are set so that they can rotate in opposite directions to each other so as not to protrude to the outside (refer to FIG. 9).

That is, the load sign 1 according to the present invention allows the reference frame 211, in which the light emitting unit 300 is installed, and the extension frame 212 to be rotatably coupled to each other, It is possible to provide the identification information of the expression information at a long distance or the expression information of a large amount of information at a long distance and to provide the expression information at a long distance on the upper part of the support body 110, So that it is possible to have convenience of storage and movement and to be installed at the center of the road according to the rotation angle so that all the drivers moving in both directions can identify the display information (see FIGS. 7 and 10).

The main frame 210 is rotatably mounted on the base frame 211. The main frame 210 may be fixed to the main frame 210 via a fastening means P such as a U- A plurality of the support bodies 110 are installed on the support body 110 so that they can be coupled to each other. It is preferable that the fastening means P be provided with a plurality of main display members 210 through the insertion holes 213 formed in the outer surface of the reference frame 211 or the extension frame 212 15)

In addition, due to the formation of the insertion hole 213, the display panel B having the plate shape on the reference frame 211 or the extension frame 212 and the display information printed on the outer surface thereof is fixedly installed by the fastening means P (See FIG. 16).

That is, the load sign 1 of the present invention can display the display information through the LED 321 of the light emitting unit 300, The light emission of the LEDs 321 may not necessarily be performed.

The display panel B on which the display information is temporarily printed can be installed in the reference frame 211 or the extension frame 212 provided on the support body 110 by the fastening means P, The display information can be expressed through the load sign 1 of the present invention.

Further, the extension frame 212 rotatably provided on the reference frame 211 is fixed by the reference frame 211 and the magnet M2 when rotated so as to be superimposed on the support body 110, (See Fig. 9).

The fixture 214 is installed such that the connection jacks 330 are inserted symmetrically on opposite surfaces of the reference frame 211 and the extension frame 212 so that the light emitting unit 300 can be installed. At this time, it is preferable that a plurality of fixtures 214 are spaced apart from each other in the vertical direction, and the distance therebetween is equal to the distance of the gap S described later (see FIGS. 8 and 17).

The connector 215 is formed on each of the reference frame 211 and the extension frame 212 so as to be electrically connected to the control means 400 and the connection jack 330 inserted into the fixture 214 is inserted into the control means 400 400 so that the control of the LED 321 can be performed. At this time, the connector 215 is electrically connected to the connection jack 330 such that each LED 321 is individually controlled by the control means, and is inserted into the separable substrate in the form of a detachable substrate from the reference frame 211 or the extension frame 212 (See Fig. 17).

The guides 216 are provided in pairs in adjacent reference frames 211 and extension frames 212 so as to have a length in the vertical direction, and the angle adjuster 340 is inserted and inserted, As shown in Fig. (See Fig. 17)

In addition, the width of the gap S can be adjusted according to the movement length of the light emitting part 300 moving in the vertical direction. For example, when the area of the gap S is strong, , And the width of the gap (S) in the region where the wind strength is weak is made small. Of course, the width of the gap S allows the display information represented through the reference frame 211 and the extension frame 212 to have a width that is visually recognizable.

The auxiliary display member 220 is installed on the extension frame 212 and includes an auxiliary frame 221 and a display board 222.

The auxiliary frame 221 is formed to have a rectangular frame shape having a light emitting panel 222 inside and is electrically connected to the auxiliary connector 217 formed on the extension frame 212, (222) can be controlled. (See Fig. 12)

The auxiliary frame 221 is provided with the fixture 214, the connector 215 and the guide 216 in addition to the electric display panel 222 to be described later so that the light emitting portion 300 is formed to form the gap S, The display unit 300 can display the display information and can be detachably installed with the auxiliary connector 217 so that the display information can be installed only by the operator.

The electric sign board 222 is formed in a plate shape so as to be fixedly installed inside the sub frame 221, and is electrically connected to the control unit 400 so that display information can be expressed.

The fixing means 230 includes a first groove 231, a second groove 232, and a fixing pin 240. The first groove 231, the second groove 232, and the fixing pin 240 are vertically installed on the supporting body 110 to fix the main display member 210, (See Figure 11).

The first groove 231 is longitudinally formed on one side or both sides of the reference frame 211, and a fixing pin 234 is provided movably in the up / down direction.

The second groove 232 is formed in the longitudinal direction at one side or both sides of the lower portion of the extension frame 212 which is vertically opposed to the first groove 231, 234 are partially inserted. At this time, the length of the second groove 232 is smaller than the length of the first groove 231, that is, the fixing pin 234, which moves in the direction of the second groove 232 from the first groove 231, It is preferable to have a length that does not completely separate from the first groove 231 so that the reference frame 211 and the extension frame 212 can be easily fixed.

In addition, a plurality of jaws 233 are formed adjacent to each other in the vertical direction within the second groove 232 so that the fixing pin 234 moving in the direction of the second groove 232 is tied in a stepwise manner to prevent it from being separated.

The fixing pin 234 is provided in the first groove 231 so as to have a length in the vertical direction and is provided so as to reciprocate in the direction of the second groove 232 from the first groove 231, So that the reference frame 211 and the extension frame 212 erected vertically to each other can be fixed to each other.

18, the light emitting unit 300 is configured to emit light to the frame unit 200 and to display information through the control of the control unit 400, 310, a light emitting substrate 320, a connection jack 330, and an angle adjuster 340.

Here, the luminescent panel 310 is formed in a tubular shape having both sides opened, and is installed to have a length in the horizontal direction in the reference frame 211 and the extended frame 212, respectively. At this time, the luminescent panel 310 forms a gap S adjacent to each other in the vertical direction so as to prevent collapse due to external influences such as wind after the rod sign 1 of the present invention is installed on the ground, (See Fig. 17)

In addition, the luminescent panel 310 may be formed of a transparent material so that display information can be displayed on the outside by light emission of the LEDs 321 provided therein, or an exposure hole 312 may be formed at a position facing the LEDs 321 Perforated. At this time, it is preferable that the exposure hole 312 is sealed or coupled to the LED 321 to prevent foreign substances or the like from being introduced into the luminescent panel 310.

In addition, a semicircular curved surface portion 311 is formed in the longitudinal direction so as to be rotatable in an upward / downward direction with an angle adjuster 340 described later on the back of the luminescent panel 310 to illuminate the LED 321, So that the angle can be adjusted so as not to fall.

The light emitting substrate 320 is detachably installed in the light emitting panel 310 in the longitudinal direction so as to be electrically connected to the connection jack 330. At this time, a plurality of LEDs 321 are installed adjacent to each other on the front surface of the light emitting substrate 320 so as to be controlled through the control means 400. At this time, it is preferable that each of the LEDs 321 is individually connected to the control means 400 so as to emit light individually (see Fig. 17)

The connection jack 330 is inserted into the luminescent panel 310 having one side opened and the other side is inserted into the fixture 214 so that the luminescent panel 310 can be fixed to the reference frame 211 or the expansion frame 212, Are provided on both sides of the panel 310, respectively. At this time, it is preferable that the connection jack 330 is connected to the connector 215 electrically connected to the control means 400 so that power can be applied to the LED 321.

The angle adjusting body 340 is formed with a through hole 341 for receiving the curved surface portion 311 to be rotatably fitted to the front of the angle adjusting body 340 and a through hole 342 through which the guide body 216 is inserted, The light emitting panel 310 can be mounted on the reference frame 211 or the extension frame 212 by adjusting the light emitting surface S of the light emitting panel 310.

The angle adjusting body 340 is provided behind the light emitting panel 310 in a pair so that the light emitting panel 310 can be stably installed in the reference frame 211 or the extension frame 212.

The rod sine 1 according to the present invention constructed as described above is different from the conventional art in that the light emitting portion 300 provided in each of the reference frame 211 and the extended frame 212 is provided with a gap S, It has an effect of preventing collapse by the same external influence.

Further, the luminescent panel 310 can be adjusted up / down through the angle adjuster 340 differently from the conventional one, so that the light emission of the LEDs 321 can be vividly illuminated by the sunlight in the daytime .

The specific embodiments of the present invention have been described above. It is to be understood, however, that the spirit and scope of the invention are not limited to these specific embodiments, but that various changes and modifications may be made without departing from the spirit of the invention, If you are a person, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

1: portable smart rod sign according to the present invention
100: Support part 110: Support body
111: installation space part 112: first hinge
113: storage groove 114: sloped surface
120: Support bar 121: Elastic body
122: support pin 200: frame part
210: main display member 211: reference frame
212: Extension frame 213: Insertion hole
214: fixture 215: connector
216: Guide 217: Secondary connector
220: auxiliary display member 221: auxiliary frame
222: electric sign board 230: fixing means
231: first groove 232: second groove
233: jaw 234:
240: second hinge 300: light emitting portion
310: luminescent panel 311:
312: Exposure hole 320: Light emitting substrate
321: LED 330: connection jack
340: angle adjusting body 341:
342: through hole 400: control means
B: display panel P: fastening means
S: Clearance

Claims (6)

A support unit 100 having a control unit 400 therein so as to be able to be connected to an external terminal;
A frame part 200 rotatably coupled to the support part 100 at a lower portion thereof and vertically installed on the support part 100 or overlapping the support part 100 in parallel with the support part 100; And
The frame unit 200 includes a frame unit 200 and a control unit 400. The control unit 400 includes a frame unit 200 and a control unit 400. The frame unit 200 includes a frame unit 200, And a light emitting unit 300,
The light emitting unit 300 includes:
A light emitting panel 310 having a semicylindrical curved surface portion 311 formed at the rear side thereof and a plurality of exposure holes 312 adjacent to each other in the longitudinal direction at a front side thereof;
A light emitting substrate 320 inserted in the light emitting panel 310 in the longitudinal direction and having a light emitting diode 321 at a position opposite to the exposure hole 312;
One side of the light emitting panel 310 is inserted into the light emitting panel 310 to be connected to the light emitting substrate 320 and the other side of the light emitting panel 310 is connected to the control unit 400, A pair of connection jacks 330; And
A through hole 342 through which the frame part 200 is inserted is formed in the rear of the frame part 200 and a through hole 341 for rotatably fitting the curved part 311 is formed in the front part, And an angle adjuster 340 disposed on both sides of the rear side of the light emitting panel 310 so as to be movable in a vertical direction along the light emitting panel 310,
The support portion 100
And a first hinge 112 rotatably engaged with the frame part 200 is provided at an upper part of the first hinge part 112. A storage groove 113 is formed at both sides of the first hinge part 112 in the longitudinal direction, A support body 110 formed; And
The support body 110 is rotatably engaged with the support body 110 so that the support body 110 is supported by the support body 110 by being pulled out of the support groove 113 by rotation. Bar 120,
A support pin 122 protruding downward due to the elastic force of the elastic body 121 and supported on the ground G is formed at the rear of the support bar 120 when the support bar 120 is drawn out of the receiving groove 113, 122) is guided by a slope (114) having a predetermined angle to the bottom surface of the receiving groove (113) and inserted into the supporting bar (120) when the receiving groove (113) Load sign.
delete 2. The apparatus of claim 1, wherein the frame portion (200)
And a plurality of light emitting units 300 (not shown) which are coupled to the upper portion of the support unit 100 so as to be rotatable relative to each other and which are formed by the second hinge 240 so as to be rotatable relative to each other, A main display member (210) provided to emit light by the control means (400); And
A plurality of light emitting units 300 or a plate-like electric light plate 222 which is connected to the control means 400 and is formed above the main display member 210 to form the gap S, And a display member (220).
The method of claim 3,
The main display member 210
A reference frame 211 having a square frame shape in which the light emitting unit 300 is provided, the lower part of which is rotatably engaged with the upper part of the support unit 100;
An extension frame 212 having a square frame shape in which the light emitting unit 300 is provided, the lower frame having an upper portion coupled to the upper portion of the reference frame 211 so as to be rotatable with respect to each other;
A fixture 214 formed on each of the opposite surfaces of the reference frame 211 and the extension frame 212 to fix the light emitting unit 300 therein;
A connector 215 (not shown) formed in the reference frame 211 and the extension frame 212 to be connected to the control unit 400 and adapted to be inserted into the light emitting unit 300 and controlled by the control unit 400, ); And
The light emitting unit 300 may be inserted through the reference frame 211 and the extension frame 212 in a vertical direction and the light emitting unit 300 may be movably inserted into the guide frame 220 to adjust the distance of the gap S, (216). ≪ / RTI >
The display device according to claim 4, wherein the main display member (210)
And fixing means (230) for fixing the reference frame (211) vertically installed on the support portion (100) and the extension frame (212) to each other,
The fixing means (230)
A first groove 231 formed in the longitudinal direction above the outer surface of the reference frame 211;
A second groove 232 formed in the longitudinal direction of the lower portion of the outer surface of the extension frame 212 so as to be symmetrical with the first groove 231 and having a jaw 233 protruding from the first groove 231 adjacent to the first groove 231; And
The reference frame 211 movably installed in the first groove 231 and the second groove 232 and fixed to the support portion 100 and the fixing pin 212 fixing the extension frame 212, (234)
The length of the second groove 232 is shorter than the length of the first groove 231 and the length of the fixing pin 234 is equal to the length of the first groove 231, So as not to interfere with the rotation of the extension frame (211) and the extension frame (212).
5. The method of claim 4,
At least one of the reference frame 211 and the extension frame 212 has an outer surface
And an insertion hole 213 into which the display panel B is fixed by the fastening means P,
Wherein the display panel (B) has a plate shape, and display information to be displayed through the light emitting unit (300) is printed on an outer surface thereof.

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