KR101460509B1 - Tunnel Electronic Light Panel Apparatus with Cat walk and Movable Ladder - Google Patents

Abstract

The present invention relates to an electronic display device for a tunnel. The electronic display device for a tunnel comprises an electronic display which can provide all kinds of information and is installed on the top of a structure including a road; a work platform which is formed on one side of the electronic display to have access to the electronic display without interference with traffic on a road; and a liftable ladder which is coupled to the work platform to be moved between a lifting position, spaced from the road and lifted to the work platform at a position which does not interfere with traffic, and a receiving position received in the work platform to control the lifting from the road to the work platform. According to the present invention, the repair work of the electronic display for a tunnel can be performed without a traffic control, and additional labor force, public resentment, and costs according to the traffic control can be saved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tunnel electronic display device having a work table and a ladder,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tunnel electric sign board device, and more particularly, to a tunnel electric sign board device improved in structure to have a work platform and a movable ladder.

In general, a Variable Message Sign (VMS), which is a kind of electric signboard installed on a highway or a national highway, is intended to convey a traffic situation on the road to a driver. Traffic information, traffic congestion, weather warning, and other specific information to the driver.

In order to maintain and repair a variable information sign or a lane control system (LCS) located in a tunnel, it is necessary to obtain approval from relevant authorities and control the roads of the construction section according to the procedure. Is a serious level of consumption. Traffic congestion caused by road control is also a reality that many complaints are received.

Methods for repairing or replacing such electric signboards are disclosed in Japanese Patent Application Laid-Open Nos. 10-0948167 (2010.03.16) and 10-1179458 (2012.11.05).

However, such conventional techniques have a problem in that the structure is complicated and difficult to apply in a structure having no separate support, such as a tunnel.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display panel for a tunnel which is capable of maintaining or repairing an electric signboard smoothly without controlling the road to maintain or repair the electric signboard.

It is another object of the present invention to provide a display panel for a tunnel which can minimize civil complaints caused by maintenance or repair of an electric sign board and is simple in structure and easy to use.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display device which is capable of providing various information, A work table provided on one side of the electric sign board so as to be accessible to the electric sign board without interfering with the vehicle passing through the road along the electric sign board; And a control unit coupled to the work table to move between a lifting position capable of moving up and down to the work table from a position spaced apart from the road so as not to interfere with the passage of the vehicle and a receiving position accommodated in the work table, And an elevating ladder.

In addition, the work table may include a work table main body that can be stepped on by the user, and a drive unit supported by the work table main body and driven by an external power source, wherein the up and down ladder includes a chain type, It is preferable that a sprocket for movably coupling the chain is coupled.

In addition, it is preferable that the lower side of the ascending / descending ladder is supported on a structure including a road at the ascending / descending position, and the upper side of the ascending / descending ladder is supported on the work table.

Preferably, the elevating ladder includes an engaging member engaged with the workbench so that the elevating ladder is held at the elevating position.

In addition, the cross section of the tunnel is formed in a helical shape so that the elevator ladder can be moved to the first position, which is the vertical position of the road, The inclined guide being inclinedly extended from the work table to guide the elevation ladder so that the first position approaches the second position when there is a difference between the first position and the second position.

According to the present invention, in particular, when repairing and repairing an electric signboard for a tunnel, work can be performed without controlling traffic flow. Further, it is possible to provide an electric sign board for a tunnel which can be economically improved because it can save additional manpower, complaints, costs and the like due to the control of the vehicle, and is simple in structure and easy to use.

1 is a plan view showing a state in which a tunnel electric signboard apparatus according to an embodiment of the present invention is installed inside a tunnel,
Fig. 2 is an enlarged view of the electric sign board and the work table shown in Fig. 1,
Fig. 3 is a plan view of Fig.
Fig. 4A is a side view of Fig. 2,
4B is a partially enlarged view for explaining a chain and a sprocket relation,
4C is a schematic view for explaining an engaging part according to the present invention,
5 is a view for explaining a state in which the lifting ladder is fixed to the ground.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

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

Fig. 1 is a plan view showing a state in which a tunnel electric sign board apparatus according to an embodiment of the present invention is installed in a tunnel, Fig. 2 is an enlarged view of a sign board and a work table in Fig. 1, Fig. 3 is a plan view of Fig. 4A is a side view of FIG. 2, FIG. 4B is a partially enlarged view for explaining a chain and a sprocket relationship, FIG. 4C is a schematic view for explaining an engaging part according to the present invention, Fig.

For convenience of explanation or convenience, the X-axis direction is defined as the left-right direction, the Y-axis direction is defined as the vertical direction, and the Z-axis direction is defined as the forward-backward direction on the side facing the tunnel based on FIG.

A tunnel electric sign board device 100 having a work platform and a ladder according to an embodiment of the present invention includes an electric signboard 110 provided on the upper side of a structure including a road R and capable of providing various information, ; A workbench (130) provided on one side of the electric sign board (110) so as to be accessible to the vehicle passing along the electric sign board (110) without interfering with the vehicle; (130) so as to prevent the vehicle from moving up and down to the work table (130) at a position where the work table (130) can move up and down from the work table (130) And a lifting ladder 170 coupled to the work table 130 to allow the lifting ladder 170 to move. The electric sign board 100 also includes a driving unit 150 for providing a driving force to move the elevating ladder 170 between the receiving position and the elevating position and a driving unit 150 for controlling the driving of the driving unit 150, And a controller 190 that controls the driving unit 150 using signals sensed by a switch (not shown) that senses a switch (not shown) and includes various switches (not shown). The control unit 190 controls the operation unit 130 to move from the ground to the work station 130 and to operate the work station 130. The control unit 190 is provided on the wall surface of the tunnel T, (110) or the work table (130) so as to be operated by the user.

Although the electric sign board 110 may be installed at various positions, it is explained that the electric sign board 110 is installed inside the tunnel T as shown in FIG. 1, but it does not exclude other cases where the technical idea of the present invention can be applied.

The electric sign board 110 is installed inside the tunnel and has a purpose of conveying the traffic situation on the road to the driver. Traffic information, traffic congestion, weather warning, and other specific information to the driver. The electric sign board 110 includes an LED module 113 for emitting light and displaying information, a SMPS (Switching Mode Power Supply, not shown) as a power supply unit, and a controller (not shown) for controlling various parts and information A fan 115 for removing heat generated by the LED module 113 for a long period of time, an LED module 113, and a rear door 117 that can be opened and closed to access the internal components.

The pawl 120 is firmly coupled to the tunnel T to support the structure including the electric sign board 110, the workbench 130 and the ascending ladder 170. Even when a plurality of workers are located on the workbench 130, It is desirable to be able to firmly support the configurations of the invention.

The workbench 130 includes a workbench main body 131 that can be stepped on by a user and a driving unit 150 supported by the workbench main body 131 and driven by an external power source.

The work table 130 is provided with a space that can be moved or worked so that the worker can perform maintenance or repair. The work table 130 is supported by the pawl 120 or the electric sign board 110 to form a frame (not shown) And the inside of the rim is made of expended metal, which is preferable because it can reduce the weight. It is preferable that the handle 133 is provided so as to secure the safety of the worker along the rim. It is preferable that a descending ladder 170, which will be described later, is disposed below the work table 130. [

It is preferable that the work table 130 is provided with an entrance opening 137 opened to lower or raise the work table 130 from the lower side and an entrance cover 137a for opening and closing the entrance door 137.

The driving unit 150 is coupled to the work platform 130 to provide a driving force for moving the elevating ladder 170 between the elevating position and the receiving position. As shown in FIG. 4B, the driving unit 150 is integrally provided with a motor (not shown) that rotates by an external power source and reduces the rotational force of the motor. The driving unit 150 is coupled to the lifting ladder 170 170 in the X direction is coupled with the speed reducer.

An example of a motor and a speed reducer integrated type capable of forward / reverse rotation of AC 220 V, 60 Hz, and 150 W and having a rotation speed of 78 rpm and a torque of 24 Nm is used as the driving unit 150.

The lifting ladder 170 includes a chain type and may be modified into various forms in accordance with the technical idea of the present invention. The ascending and descending ladder 170 is provided on both sides of the chain at a constant pitch and can be engaged with the sprocket 155. The inner side of the chain can be moved up and down by an operator, ). ≪ / RTI >

It is preferable that the lifting ladder 170 moves along the chain guide 135 which is provided under the work platform and is guided by the chain.

An example in which the lifting ladder 170 descends and is fixed to a support such as a road will be described with reference to Fig.

When a worker operates a switch (not shown) so that the elevator lane 170 descends from the control unit 190 installed on the wall of the tunnel T, the driving unit 150 operates to descend the elevator ladder 170 and reach the elevating position . The worker uses a fixing means 185 such as a bolt to fix a fixing bracket 173 provided at the lower end of the ascending and descending ladder 170 to the ground fixing member 183 which is provided on the floor bottom and is embedded in the ground, . So that the lower portion of the lifting ladder 170 can be firmly fixed to the ground including the road. The ground fixing member 183 is preferably covered with a component such as a plastic cap (not shown) to prevent foreign matter from entering the ground.

When the lifting ladder 170 is supported by a structure such as the road R at the lifting position and the worker lifts the lifting ladder 170 along with the lifting ladder 170, It is preferable that the engaging portions 135a and 175 are provided as shown in Fig. 4C for allowing the lifting ladder 170 to move and maintain the lifting position.

For example, as shown in FIG. 4C, a pin-shaped latching member 175 coupled to the lifting ladder 170 may be provided on the chain guide 135 Shaped engaging member 135a having a space in which a pin shape is coupled and does not move.

Thus, even if the worker moves up and down along the elevator ladder 170 at the elevation position, it performs a kind of braking function capable of maintaining the elevation position without the elevation ladder 170 being moved by the engaging portions 135a and 175. [

In addition, the controller 190 can automatically move the lifting ladder 170 from the lifting position to the lifting position by means of a sensor (not shown) for detecting that the lifting ladder 170 comes to the receiving position, It is preferable to control the elevating ladder 170 to automatically move from the receiving position to the lowering position using the sensor.

Although not described here, the electric sign board device 100 according to the present invention is disposed at a higher level than the passage height of a vehicle or the like on the lower side, and the height is appropriately set to a height prescribed by a method such as 90 cm or more of the passage height.

1), which is a road position in the vertical direction of a region (see A in Fig. 1) where the elevation ladder 170 enters and exits the work platform 130, (See G in Fig. 1) between the first position and the second position, which is a road position (see B2 in Fig. 1) that can be raised and lowered without interfering with vehicle travel of the road R, And an inclined guide 139 extending obliquely from the work table 130 to guide the elevation ladder 170 so as to approach the second position.

This inclination guide 139 is inclinedly extended from the workbench 130 (see A to B1 in Fig. 1), so that the worker can move up and down in the Y direction of B2, The elevator ladder 170 can descend from the point B1 at which the worker (user) can safely move from the ground to the workbench 130 regardless of the vehicle traveling on the road, even in a place where the space is narrow due to the structure of the tunnel T It can ascend and descend.

The operation of the electric display panel device 100 according to the present invention having such a configuration will be described in detail as follows.

A user who is an operator operates the control unit 190 to maintain or repair the electric sign board 110 installed on the tunnel T at a position not obstructing the movement of the vehicle on the side of the road located on the left or right wall surface of the tunnel T. [ To operate the elevating ladder 170 at the receiving position to come down to the ground.

When the lifting ladder 170 reaches the lifting position, the fixing bracket 173 of the lifting ladder 170 is fixed to the ground fixing member 183 using the fixing means 185 including bolts as shown in Fig. 5 So that the user can prevent the lifting ladder 170 from being shaken during the lifting and lowering.

In this process, the engaging portions 135a and 175 as shown in FIG. 4C and described above allow the user to more safely lift and lower between the work table 130 and the ground using the elevator ladder 170 more safely.

The user opens the access cover 137a of the access door 137 and closes the access cover 137a so as to prevent the access door 137 from falling down after the access door 137a is lifted up to the work table 130 and moves along the work table 130, Maintenance or repair of the battery 110 can be performed.

When the user completes the operation of the electric sign board 110, the door cover 137a is opened and the foot is pushed up by the elevator ladder 170 to close the door cover 137a and then descend along the elevator ladder 170 to the ground come.

After all the workers descend to the ground, the fixing unit 185 for fixing the elevator ladder 170 to the ground is disengaged from the ground fixing member 183, and then the control unit 190 is operated to move the elevator ladder 170 to the receiving position . This movement can be done automatically as described above.

According to the present invention, the user who is the worker can access the electric sign board 110 by using the ascending and descending ladder 170 ascending and descending along the side surface of the tunnel T without controlling the flow of traffic passing through the road R The user can move to the workbench 130, If the side space of the tunnel T or the like is narrow, the road R is temporarily controlled at least during the lifting and lowering of the user, and the road R is not required to be controlled during the operation time which takes a substantial amount of time. The effect to be described later can be sufficiently obtained.

Thus, according to the present invention, in particular, when repairing and repairing an electric signboard for a tunnel, work can be performed without controlling traffic flow. In addition, it is possible to provide an electric sign board for a tunnel, which can save economic manpower, complaints, costs, and the like due to the control of the vehicle, thereby improving economical efficiency, and being simple in structure and easy to use, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the invention. will be. The scope of the invention will be determined by the appended claims and their equivalents.

100: electric display panel device 110:
113: LED module 115: fan
117: back door 120: Paul
130: work table 131: work table body
133: Handle 135: Chain guide
135a: Sealing member 137: Entrance
137a: access cover 139: inclined guide
150: driving part 155: sprocket
170: lifting ladder 173: fixing bracket
175: engaging member 183: ground fixing member
185: fixing means 190:

Claims (5)

An electric display panel provided on the upper side of the structure including various roads and capable of providing various information;
A work table provided on one side of the electric sign board so as to be accessible to the electric sign board without interfering with a vehicle passing through the road along the electric sign board;
And a control unit coupled to the work table to move between a lifting position capable of moving up and down to the work table from a position spaced apart from the road so as not to interfere with the passage of the vehicle and a receiving position accommodated in the work table, An elevating ladder,
The work table includes a work table main body that can be stepped on by the user, and a driving unit supported by the work table main body and driven by an external power source,
Wherein the lifting ladder comprises a chain,
And a sprocket for movably coupling the chain is coupled to the driving unit. delete The method according to claim 1,
Wherein the lower side of the ascending / descending ladder is supported by a structure including a road at the ascending / descending position, and the upper side of the ascending / descending ladder is supported by the work table. The method according to claim 1,
Further comprising: an engaging portion that engages with the elevation ladder and the work platform so that the elevating ladder is held at the elevation position. The method according to claim 1,
A cross section of the tunnel is formed in a helical shape so that the elevator ladder can be moved between a first position which is a vertical position of the road in the area where the elevator ladder goes in and out of the workbench and a second position which is a road position And an inclined guide which is inclinedly extended from the work table to guide the elevation ladder so that the first position is close to the second position when there is a difference.

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