KR102575363B1 - Support structure of variable message sign having folding ladder and foldable safety railing - Google Patents

Abstract

The present invention relates to a road signboard support structure having a foldable ladder and a foldable safety railing, and in a road signboard support structure for supporting a road signboard, a support pillar installed vertically on the ground, horizontal from one side of the support pillar An electric signboard support including upper and lower supports extending and vertically spaced apart from each other, and connecting supports vertically connecting the upper and lower supports, a foldable ladder installed on the support pillar, and the rear side of the road signboard. Including a foldable safety handrail installed on an electric sign board support, wherein the foldable ladder includes a body frame, step members, a connecting member and a first driving device, and the foldable safety handrail includes fixed pillars, footrests, handrails and Provided is a road sign board support structure having a foldable ladder including a second driving device and a foldable safety handrail.

Description

Support structure of variable message sign having folding ladder and foldable safety railing}

The present invention relates to a road sign board support structure, and more particularly, to a road sign board support structure having a foldable ladder and a foldable safety handrail.

Variable Message Sign (VMS, hereinafter referred to as road electronic signboard) provides road users with real-time information on traffic volume, traffic accidents, congested sections, weather conditions, and control due to construction, thereby improving the efficiency of traffic flow and improving traffic flow. equipment to improve safety. It can be largely divided into text expressions expressed in characters and symbols, and graphic forms for increasing the ease of path selection.

Highways and all national roads have such a road display board (VMS) installed. If a road display board is defective, you have to step on the ladder installed on the support pole and cross over to the safety railing behind the road display board for inspection and repair. Most road sign boards (VMS) have this structure.

However, on general national roads other than highways, accidents often occur when ordinary people climb up and cause the display board to malfunction or climb up the ladder of the support pillar, and the appearance of the safety railing protruding from the back of the display board on the road is also not aesthetically pleasing. not.

Accordingly, it is necessary to develop a road signboard support structure having excellent stability while preventing accidents by ordinary people in advance and improving the appearance, and preventing accidents of workers during maintenance of road signboards.

The background technology of the present application is disclosed in Registered Patent No. 10-2148421.

A technical problem to be solved by the present invention is to provide a road signboard support structure with excellent stability while preventing accidents by ordinary people in advance, improving the appearance, and preventing accidents of workers during maintenance.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

A road signboard support structure having a folding ladder and a folding safety railing according to embodiments of the present invention for achieving the above object is a road signboard support structure for supporting a road signboard, comprising: a support pillar vertically installed on the ground; an electronic display board support including upper and lower supports horizontally extending from one side of the support pillar and vertically spaced apart from each other, and connecting supports vertically connecting the upper and lower supports; a folding ladder installed on the support pole; And a folding safety handrail installed on the electric signboard support at the rear side of the road signboard, wherein the foldable ladder is installed on the outer circumferential surface of the support pillar, and has a length in the vertical direction and is spaced apart from side to side. a body frame including vertical frames and horizontal frames that connect the pair of vertical frames horizontally and are spaced apart in the vertical direction; a plurality of step members spaced apart from each other in a vertical direction between the vertical frames, rotating with respect to the vertical frames, and coupled to inner surfaces of the vertical frames to be folded or unfolded, each having a 'U' shape; a connection member connected in common with the plurality of step members vertically spaced apart in the vertical direction; and a first driving device spaced upward from the body frame and installed on an outer circumferential surface of the support pillar to rotate and move the plurality of step members by moving the connecting member upward or downward, wherein the foldable safety handrail includes: fixing pillars installed on the upper and lower supports and provided as a pair to be spaced apart from each other in the longitudinal direction of the upper and lower supports; Footrests connected to lower ends of the fixing pillars and including first footrests and second footrests that are coupled to be foldable by hinge members; a railing portion installed vertically on the second scaffolding unit and including a plurality of vertical posts and horizontal rails connecting between the vertical posts; And a second driving device that is installed between the outermost vertical posts facing the fixed pillars among the plurality of vertical posts and the fixed pillars, and horizontally moves the handrail part away from or closer to the fixed pillars. includes

According to one embodiment, the foldable ladder further includes anti-rotation bumps provided at lower ends of the horizontal frames, and the horizontal frames and the anti-rotation protrudes forward of the vertical frames, and the protruding lengths of the anti-rotation protrusions is smaller than the protruding length of the horizontal frames, and the hinge members are a first hinge member connecting the first scaffolding portion and the second scaffolding portion, and between the fixing pillars and the first scaffolding portion and between the handrail portion and the second scaffolding portion. It may include a second hinge member connecting between the second scaffolding.

According to one embodiment, the connecting member includes a wire commonly connected to the plurality of step members, and the first driving device includes a driving box and a driving motor, a gear, and a pulley provided in the driving box, , The wire of the connecting member is connected to the pulley, the drive motor provides a rotational force to the pulley through the gear, and the wire of the connecting member is wound or unwound on the pulley according to the rotation of the pulley, The plurality of step members connected to the wire may be rotated upward or downward.

According to one embodiment, the second driving device includes a hydraulic cylinder device having one end fixed to the upper side of the corresponding fixing column and the other end coupled to the upper side of the corresponding outermost vertical support, the hydraulic cylinder device May include a cylinder to which hydraulic pressure is supplied, a cylinder rod linearly moving in one direction of the cylinder, and a connecting link connected to an end of the cylinder rod and coupled to an upper side surface of the corresponding outermost vertical support.

According to one embodiment, it further includes a safety reinforcement sheet attached to the upper surface of each of the horizontal frames, wherein the safety reinforcement sheet is: a mixed powder material including rubber powder, plastic powder and nanocellulose powder, a phytoncide stock solution, A base sheet prepared by preparing a base molding composition by mixing an antibacterial functional liquid containing a juniper tree sap and an extract of moutan bark, a binder, a dispersant, and an additive, and then performing a molding process; a light emitting pattern including light emitting grooves formed on the upper portion of the base sheet and light emitting materials filled in the light emitting grooves; a protective sheet laminated to cover the upper surface of the base sheet and to seal the light emitting receiving groove filled with the light emitting material; and a light emitting structure including nanopatterns formed on the base sheet so as to overlap the light emitting groove in plan view.

According to one embodiment, the base molding composition is a mixture of rubber powder, plastic powder, and nanocellulose powder at a weight ratio of 1:0.1 to 0.3:0.1 to 0.3 per 100 parts by weight of a mixed powder material containing phytoncide stock solution, cedar tree sap, and moutan bark extract. 3 to 5 parts by weight of the antimicrobial functional solution mixed in a weight ratio of 1:0.5 to 1:0.1 to 0.5, 10 to 20 parts by weight of a binder, 50 to 100 parts by weight of a dispersant and a slip agent, antioxidant, lubricant, antiblocking agent and heat It is prepared to include 1 to 5 parts by weight of an additive including at least one of the stabilizers, and the light emitting material may use a mixture of luminous powder and luminous powder in a weight ratio of 1:0.3 to 0.5.

In the road signboard support structure according to the embodiments of the present invention, as the ladder, which is a means for workers to climb and descend on the support pillar, and the safety railing, which is a work space for maintenance and repair of the road signboard, are implemented in a foldable form, permission is granted other than the general public. Only qualified workers can use the folding ladder and the folding safety railing, so the occurrence of safety accidents by ordinary people can be prevented in advance.

In addition, as the safety reinforcement sheet is attached to the upper surface of the horizontal frame of the foldable ladder, the load of workers stepping on the stepping member is alleviated, and the visibility of workers working at night is increased so that the position of the stepping member can be easily recognized. By doing so, stability can be improved.

As a result, it is possible to provide a road signboard support structure with excellent stability while preventing safety accidents by ordinary people, improving appearance, and preventing accidents of workers during maintenance.

1 is a view for explaining a road signboard support structure according to embodiments of the present invention, and is a view showing a front portion in which a road signboard is installed.
2 is a view for explaining a road sign board support structure according to embodiments of the present invention, and is a view showing a rear part in which a road sign board is installed.
Figure 3 is a partial side view for explaining a foldable ladder according to embodiments of the present invention.
Figure 4 is a partial rear view for explaining a foldable ladder according to embodiments of the present invention.
5 is a partial side view for explaining the first driving device of the foldable ladder.
6 is a partial side view for explaining a folding safety handrail according to embodiments of the present invention.
7 is a partial plan view for explaining a folding safety handrail according to embodiments of the present invention.
8 is a partially enlarged cross-sectional view illustrating a safety reinforcement sheet attached to an upper surface of a horizontal frame of a foldable ladder.
9 is a view for explaining a modified example of a foldable ladder according to embodiments of the present invention.
10 is a cross-sectional view for explaining a safety reinforcement sheet according to embodiments of the present invention.
FIG. 11 is a partially enlarged cross-sectional view for explaining the diverging structure formed on the protective sheet of FIG. 10 .
12 is a plan view for explaining the arrangement relationship between a light emitting pattern and a light emitting structure.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and the common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

In the present specification, when a member is said to be located “on” another member, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members. In addition, in the present specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

As used throughout this specification, the terms "about," "substantially," and the like are used at or approximating that number, when manufacturing and material tolerances inherent in the stated meaning are given, and are used within the meaning of the present application. To help prevent exploitation by unscrupulous infringers of the disclosed disclosure, exact or absolute figures are used.

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

1 is a view for explaining a road signboard support structure according to embodiments of the present invention, and is a view showing a front portion in which a road signboard is installed. 2 is a view for explaining a road sign board support structure according to embodiments of the present invention, and is a view showing a rear part in which a road sign board is installed. Figure 3 is a partial side view for explaining a foldable ladder according to embodiments of the present invention. Figure 4 is a partial rear view for explaining a foldable ladder according to embodiments of the present invention. 5 is a partial side view for explaining the first driving device of the foldable ladder. 6 is a partial side view for explaining a folding safety handrail according to embodiments of the present invention. 7 is a partial plan view for explaining a folding safety handrail according to embodiments of the present invention. 8 is a partially enlarged cross-sectional view illustrating a safety reinforcement sheet attached to an upper surface of a horizontal frame of a foldable ladder. 9 is a view for explaining a modified example of a foldable ladder according to embodiments of the present invention.

1 to 8, a road signboard support structure 1 according to embodiments of the present invention is a structure for supporting a road signboard installed on a road, and includes a support pillar 100 and a signboard support 200. , It may include a folding ladder 300, a folding safety handrail 400 and a safety reinforcement sheet 500.

The support pillar 100 is installed on the roadside and may have a pillar shape extending in a direction perpendicular to the ground. The support pillar 100 may be implemented to firmly support the entire load on which the road sign board 10 is installed. For example, a flange plate 110 including a reinforcing plate is provided at the lower end of the support pillar 100, and the flange plate 110 may be coupled to a foundation concrete (not shown) embedded in the ground for firm fixation. On the other hand, an enclosure holder 120 for mounting an electric sign control enclosure (not shown in the drawing, hereinafter referred to as an enclosure) and a cable inspection hole 130 for checking communication cables may be provided under the support pillar 100. . The enclosure cradle 120 is provided with an enclosure.

The electronic display board support 200 is a configuration for supporting and fixing the road electronic display board 10 at a certain height on the road, and may be provided on top of the support pillar 100. For example, the electronic display board support 200 extends horizontally from one side of the support pillar 100 and includes an upper support 210 and a lower support 220 vertically spaced apart from each other, and the upper and lower supports 210 and 220. It may include connection supports 230 that connect vertically. Since various types of road signboards 10 may be installed on the signboard support 200 in a known method, a detailed description thereof will be omitted.

A folding ladder 300 may be installed on the support pillar 100 . The folding ladder 300 is usually maintained in a folded form so as to be in close contact with the support pillar 100, and when necessary for maintenance (ie, inspection or repair) of the road signboard 10, it is unfolded in a ladder form to be supported by a worker. It can be implemented to climb up the pillar 100 and move to a safety railing (ie, a foldable safety railing 400). In this embodiment, the foldable ladder 300 may be installed on the outer circumferential surface of the support pillar 100 at the rear side of the road signboard 10, but the present invention is not limited thereto.

According to embodiments of the present invention, the foldable ladder 300 may include a body frame 310, a stepping member 320, a connecting member 330 and a first driving device 340.

The body frame 310 may be installed on the outer circumferential surface of the support pillar 100 by bolting or welding. For example, the body frame 310 has a length in the vertical direction and a pair of vertical frames 312 disposed left and right spaced apart, and a horizontal frame connecting the pair of vertical frames 312 horizontally and spaced apart in the vertical direction. s (314). Each of the vertical frames 312 may have a rod shape or rod shape having a length in the vertical direction, and one side surface in contact with the support pillar 100 may have a curved surface corresponding to the outer circumferential surface of the support pillar 100 .

Each of the horizontal frames 314 has a substantially rectangular plate shape, and may connect inner surfaces of a pair of vertical frames 312 facing each other. Also, the horizontal frames 314 may protrude forward from the vertical frames 312 . The horizontal frames 314 not only strengthen the coupling between the vertical frames 312, but also support the operator's load when the step member 320 is used as a step for a ladder, while the step member 320 rotates downward. can be used to suppress The vertical frame 312 and the horizontal frame 314 may be made of a metal material, but are not limited thereto.

A rotation prevention bump 316 may be formed at the lower end of the horizontal frame 314 . In addition to reinforcing the rigidity of the horizontal frame 314, the anti-rotation bump 316 may limit upward rotation of the step member 320 when the step member 320 is folded and folded so as to come into close contact with the support pillar 100. The anti-rotation bump 316 may protrude forward from the vertical frame 312 . At this time, the protruding length of the anti-rotation bump 316 may be smaller than the protruding length of the horizontal frame 314 .

The step member 320 supports a worker's feet and enables the worker to move upward along the support pillar 100, and may have a substantially 'U' shaped rod shape. The step members 320 may be provided in plurality, spaced apart from each other in the vertical direction between the vertical frames 312, and coupled to the vertical frame 312 so as to be folded or unfolded while rotating with respect to the vertical frame 312. For example, both ends of the step member 320 may be rotatably coupled to the inner surface of the vertical frames 312 through a rotation axis 322 parallel to the separation direction (ie, left and right direction) of the vertical frames 312. can The rotating shaft 322 may pass through both end portions of the step member 320 and be inserted into coupling grooves formed on inner surfaces of the vertical frames 312 .

A plurality of step members 320 vertically spaced apart in the vertical direction may be connected to the connecting member 330 in common. For example, the connection member 330 may include a wire. The wire of the connecting member 330 may be moved upward or downward by the first driving device 340, and the step members 320 commonly connected to the connecting member 330 rotate upward according to the movement of the wire. It can be folded toward the support pillar 100 or rotated downward to unfold in front of the vertical frames 312 . As another example, the connection member 330 may include a bar-shaped link bracket and a wire connected thereto, unlike that shown in FIG. 3 . In this case, the step members 320 are connected in common with the bar-shaped link bracket, the bar-shaped link bracket is connected to the wire, and the step members 320 connected in common with the link bracket according to the movement of the wire It may be rotated upward and folded toward the support pillar 100, or rotated downward and unfolded forward of the vertical frames 312.

The first driving device 340 may be spaced upward from the body frame 310 and installed on the outer circumferential surface of the support pillar 100 . The first driving device 340 is configured to move the connecting member 330 upward or downward, and may be implemented in any form as long as it is for achieving this purpose.

For example, the first driving device 340 may include a driving box 342 and a driving motor (not shown), a gear (not shown), a pulley 344 and the like provided in the driving box 342 . A wire of the connecting member 330 is connected to the pulley 344, and a driving motor (not shown) may provide rotational force to the pulley 344 through a gear (not shown). The drive motor (not shown) may be implemented as a servo motor capable of forward and reverse rotation. The pulley 344 is rotated according to the operation of the drive motor (not shown), and the wire of the connection member 330 is wound or unwound around the pulley 344 according to the rotation of the pulley 344, so that the step members connected to the wire 320 can be rotated upward or downward.

An operation button for turning on/off driving of a driving motor (not shown) may be provided in the enclosure. In general, the opening of the housing is allowed only to authorized workers for maintenance (ie, inspection or repair) of the road sign board 10 . That is, only authorized workers can use the foldable ladder 300 by opening the enclosure and operating a driving motor (not shown) to spread the step members 320 forward of the vertical frames 312 . Accordingly, it is possible to effectively prevent any ordinary person from climbing up the ladder of the support pillar 100 .

According to one embodiment, as shown in FIG. 9 , the foldable ladder 300 may further include circular ring-shaped protective guides 325 . The protective guides 325 are coupled to the outer side surfaces of the vertical frames 312 and may be spaced apart in the vertical direction. The protective guides 325 form passages through which workers can go up and down, and may play a role of supporting a worker's back so that a worker who goes up and down stepping on the stepping members 320 does not fall.

As shown in FIG. 8 , a safety reinforcement sheet 500 may be attached to the upper surface of the horizontal frame 314 . The safety reinforcement sheet 500 relieves the load of the worker stepping on the step member 320 and increases the visibility of workers working at night so that the position of the step member 320 can be easily recognized, thereby improving work stability. can be used to improve The safety reinforcement sheet 500 will be described in detail later.

The folding safety handrail 400 is a configuration for providing a space where a worker maintaining the road signboard 10 is located, and may be installed on the signboard support 200 at the rear side of the road signboard 10. The folding safety handrail 400 is usually maintained in a folded form so as to be in close contact with the electronic signboard support 200 side, and when necessary for maintenance (ie, inspection or repair) of the electronic signboard 10 on the road, the footrest is unfolded to provide workers with work. It can be implemented to provide space.

According to embodiments of the present invention, the foldable safety handrail 400 may include a fixed post 410, a scaffolding portion 420, a handrail portion 430, and a second driving device 440.

The fixing posts 410 are installed on the upper and lower supports 210 and 220 of the display board support 200, and are provided as a pair to be spaced apart from each other in the longitudinal direction of the upper and lower supports 210 and 220. there is. The fixing post 410 may have a bar or rod shape having a length in the vertical direction.

The footrest unit 420 is connected to the lower ends of the pair of fixing pillars 410 and includes a rectangular plate structure so that the operator can put both feet on it. The scaffolding portion 420 may include a first scaffolding portion 422 and a second scaffolding portion 424 coupled to be foldable by hinge members 426a and 426b. The hinge members 426a and 426b are between the first hinge member 426a connecting the first scaffolding portion 422 and the second scaffolding portion 424, and the fixing post 410 and the first scaffolding portion 422. And it may include a second hinge member (426b) connecting between the handrail 430 and the second scaffolding portion 424. Each of the first hinge member 426a and the second hinge member 426b may be provided in plurality. According to the horizontal movement of the handrail 430, the first scaffolding portion 422 and the second scaffolding portion 424 are folded between the fixing post 410 and the handrail 430, or between the fixing post 410 and the handrail. (430).

The handrail 430 may be vertically installed on the second scaffolding portion 424 to prevent a worker from falling. For example, the handrail 430 may include a plurality of vertical posts 432 and horizontal rails 434 connecting between the vertical posts 432, but the shape of the handrail 430 is limited thereto. It is not. The handrail 430 may horizontally move closer to or farther from the fixing post 410 according to the driving of the second driving device 440 . For convenience of description below, a pair of vertical posts horizontally facing the pair of fixed posts 410 among the plurality of vertical posts 432 may be referred to as outermost vertical posts 432a. .

The second driving device 440 is installed between the fixed pillar 410 and the outermost vertical pillar 432a of the handrail 430 facing the fixed pillar 410, and moves away from or closer to the fixed pillar 410. The handrail 430 may be moved horizontally. For example, the second driving device 440 may include a hydraulic cylinder device 442 having one end fixed to the upper side of the fixing post 410 and the other end coupled to the upper side of the outermost vertical support 432a. . The hydraulic cylinder device 442 is connected to a cylinder 442a to which hydraulic pressure is supplied, a cylinder rod 442b linearly moving in one direction of the cylinder 442a, and an end of the cylinder rod 442b to form an outermost vertical support 432a. It may include a connection link (442c) coupled to the side of. Although not shown, the second driving device 440 may include a hydraulic pump (not shown), a fluid tank (not shown), a hydraulic hose (not shown), etc. for driving the hydraulic cylinder device 442, and these The configuration may be installed on the fixing post 410 or the upper support 210 or the lower support 220 .

According to the present invention, a hydraulic pump (not shown) is electrically operated, and an operation button for operating the hydraulic pump (not shown) may be provided in the enclosure. Accordingly, only an operator authorized for maintenance (ie, inspection or repair) of the road signboard 10 can open the enclosure to operate a hydraulic pump (not shown), and the hydraulic cylinder device 442 accordingly By the operation of the handrail 430 is moved forward away from the fixed pillar 410, the scaffolding portion 420 is unfolded to be able to use the foldable safety handrail 400 as a work space.

Hereinafter, a safety reinforcement sheet 500 according to embodiments of the present invention will be described with reference to FIGS. 10 to 12 .

10 is a cross-sectional view for explaining a safety reinforcement sheet according to embodiments of the present invention. FIG. 11 is a partially enlarged cross-sectional view for explaining the diverging structure formed on the protective sheet of FIG. 10 . 12 is a plan view for explaining the arrangement relationship between a light emitting pattern and a light emitting structure.

10 to 12 , the safety reinforcement sheet 500 may include a base sheet 510, a light emitting pattern 520, a protective sheet 530, and a radiation structure 540.

The base sheet 510 may be made of a material having sufficient elasticity to absorb a worker's load transmitted to the horizontal frame 314 through the step member 320, and having excellent weather resistance and mechanical strength. For example, the base sheet 510 is formed by mixing a mixed powder material including rubber powder, plastic powder, and nanocellulose powder, an antibacterial functional liquid including phytoncide stock solution, juniper sap, and moutan bark extract, a binder, a dispersant, and an additive to form a base sheet. After preparing the molding composition, a molding process may be performed to use a product manufactured.

The rubber powder is used to secure elasticity of the base sheet 510, and includes ethylene-propylene rubber, ethylene-propylene-diene rubber, butadine rubber, and isobutene. It may include at least one rubber material selected from Isobutene isprene rubber (Butyl rubber), Isoprene rubber, and Silicon rubber.

It is preferable to use a synthetic resin material having strong weather resistance as the plastic powder, and for this purpose, a pulverized synthetic resin material including at least one of polycarbonate, polyester, polyethylene, and polyacrylate may be used.

Nanocellulose powder may be used to enhance the mechanical strength of the base sheet 510 . Nanocellulose powder is a variety of wood-derived Kraft paper or sulfurous acid pulp, powdered cellulose ground by high-pressure homogenizer or mill, or refined by chemical treatment such as acid hydrolysis. Microcrystalline cellulose powder, cellulose derived from bacteria, or those derived from plants such as kenaf, hemp, rice, bacchus, and bamboo may be used, but are not limited to the above types.

Each of the rubber powder, plastic powder, and nanocellulose powder may have a particle size of 50 to 100 um. If the particle size is less than 50um, the pulverization process is complicated and agglomeration or sedimentation may occur, and if the particle size exceeds 100um, moldability may be deteriorated. According to one embodiment, the mixed powder material may use a mixture of rubber powder, plastic powder, and nanocellulose powder in a weight ratio of 1:0.1 to 0.3:0.1 to 0.3.

The antimicrobial functional liquid is a liquid mixture having strong antibacterial and antioxidant functions, and may be used to prevent corrosion of the base sheet 510 and to enhance weather resistance.

Phytoncide stock solution can be produced from cypress trees. Phytoncide is a self-defense material of plants, and is a substance emitted or secreted by plants to resist pathogens, pests, molds, etc., and contains sterilization and insecticidal components in itself. The constituents of phytoncide are organic compounds composed of terpenes, phenolic compounds, alkaloids, glycosides, etc., and are known to have antibacterial, sedative, deodorizing, and stress relieving effects.

Hwangchil (Dendropanax morbifera Lev.) is a warm-tempered green broad-leaved tree belonging to Araliaceae, and is a native species of Korea that grows wild in the south and west coasts and island regions such as Jeju-do, Wando, Bogil-do, Geomundo, and Haenam. When the hwangchil tree is wounded, it secretes a milky white liquid to heal itself, which turns golden in the air. It has been confirmed that Hwangchil tree sap contains physiologically active substances such as benzoin and serquiterpene, and is known to have various antibacterial effects or unconfirmed pharmacological actions. The aromatic component is mainly composed of β-cubebene, γ-selinene and δ-cardinene of sesquiterpene.

Moutan Cortex Radicis refers to the root bark of the Moutan Cortex Radicis of the Paeoniaceae family, and contains paeonoside, paeonolide and paeonol. During storage, it decomposes to form sugars and phaeonols. Paeoniflorin, oxypaeoni florin, benzoylpaeoniflorin, paeonolide tannin, procyanidin B1. It contains ingredients such as benzoyloxypaeoniflorin, paeonin, astragalin, and pelargonin. These ingredients have been reported to perform excellent antibacterial activity.

Preferably, the antibacterial functional solution may use a mixture of phytoncide stock solution, juniper tree sap, and moutan bark extract in a weight ratio of 1:0.5 to 1:0.1 to 0.5.

The binder may perform a function of increasing adhesion after molding as well as increasing adhesion during the molding process of the base molding composition by increasing adhesion between the rubber powder, the plastic powder, and the nanocellulose powder. For example, an acrylic resin, an epoxy resin, a urethane resin, or a silicone resin may be used as the binder.

As the dispersant, a water-soluble dispersant made of a water-soluble polymer may be used. The dispersing agent is at least one solvent selected from among water, a hydrophilic alcohol solvent, an aldehyde solvent, an ester solvent, and a ketone solvent, polyvinylpyrrolidone, polyvinyl alcohol, polyethylene glycol, polyethylene oxide, polyaspartic acid, alginic acid, It may include at least one water-soluble polymer material selected from chitosan, hyaluronic acid, polyetherimide, and carboxymethylcellulose.

The additive is used for moldability and stability, and may include at least one of a slip agent, an antioxidant, a lubricant, an antiblocking agent, and a heat stabilizer. Known slip agents, antioxidants, lubricants, antiblocking agents, or thermal stabilizers may be used, and thus detailed descriptions thereof are omitted.

According to one embodiment, the base molding composition contains phytoncide stock solution, cedar tree sap, and moutan bark extract per 100 parts by weight of a mixed powder material in which rubber powder, plastic powder, and nanocellulose powder are mixed in a weight ratio of 1:0.1 to 0.3:0.1 to 0.3. 3 to 5 parts by weight of an antimicrobial functional solution mixed in a weight ratio of 1:0.5 to 1:0.1 to 0.5, 10 to 20 parts by weight of a binder, 50 to 100 parts by weight of a dispersant, and a slip agent, antioxidant, lubricant, antiblocking agent, and heat stabilizer It may be prepared to include 1 to 5 parts by weight of an additive containing at least one of. As the base molding composition is prepared in the above content ratio, elasticity and mechanical strength of the base sheet 510 may be improved, as well as weather resistance and moldability may be increased.

The base molding composition may be processed into pellets having a particle size of 5 to 20 mm through extrusion and pelletization processes, and the processed pellets may be processed into a base sheet in the form of a film through an extrusion process performed at a temperature of 120 to 180 ° C. (510).

Although not shown, an adhesive layer (not shown) for attaching the safety reinforcement sheet 500 may be formed on the lower surface of the base sheet 510 .

The light emitting pattern 520 may be provided on top of the sheet 510 . The light emitting pattern 520 is formed to emit light even at night, and can be used to improve visibility of workers during maintenance of the road signboard 10 where night work is frequent. Specifically, the light emitting pattern 520 may include light emitting grooves 522 formed on the base sheet 510 and the light emitting material 524 filled in the light emitting grooves 522 .

The light receiving groove 522 may be formed in a recessed upper surface of the base sheet 510 . Light receiving grooves 522 may be formed on the base sheet 510 at regular intervals and with a predetermined size. For example, as shown in FIG. 12 , the light receiving grooves 522 may be spaced apart at regular intervals and formed in a dot shape forming rows and columns. Through this, a worker can effectively recognize the light emitting pattern 520 (ie, light emitted by the light emitting pattern 520).

The luminescent material 524 may include a mixture of luminous powder and luminous powder capable of emitting light at night. In the present invention, luminous powder refers to a paint that glows in the dark for a long time without a light source by accumulating light energy in a coating film when exposed to sunlight, ultraviolet rays, electric lights, etc. It refers to a product obtained by adding a radioactive isotope to a photoluminescent pigment, and a known material can be used. For example, as the light emitting material 524, it may be preferable to use a mixture of luminous powder and luminous powder in a weight ratio of 1:0.3 to 0.5.

The protective sheet 530 may be laminated to cover the upper surface of the base sheet 510 while sealing the light receiving groove 522 filled with the light emitting material 524 . The protective sheet 530 may be made of a transparent resin material so that light emitted from the light emitting pattern 520 can pass through. For example, the protective sheet 530 may be made of a transparent material such as polycarbonate, polyester, polyethylene, or polyacrylate.

A diverging structure 540 including nano patterns 542 may be provided on the protective sheet 530 . The light emitting structure 540 may be formed to overlap the light emitting groove 522 in plan view. The nanopatterns 542 of the diverging structure 540 have a nanoscale size (eg, width and height of 100 nm to 300 nm), are spaced apart at intervals of 100 nm to 300 nm, and form a plurality of rows and columns two-dimensionally. can be arranged Light emitted from the light emitting material 524 filled in the light receiving groove 522 is scattered or diffracted through the nano-patterns 542 of the corresponding light emitting structure 540, so that the light is emitted wider and farther, resulting in better visibility. can be increased As a result, a worker working at night can more effectively recognize the light emitting pattern 520 of the safety reinforcing sheet 500 attached to the horizontal frame 314, and as a result, easily locate the step member 320 by Stability can be further improved while stepping on the step member 320 and going up and down.

The nanopatterns 542 may be formed by performing a nanoimplantation process using a paste composition including, for example, plastic or metal materials. However, the present invention is not limited thereto. The nanopatterns 542 may be formed by a patterning process using a laser or a method of transferring a nanoscale structure formed using a laser. Since a known method may be used for forming the nanopatterns 542 , a detailed description thereof will be omitted.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the above-described embodiments and application examples are illustrative in all respects and not restrictive.

1: road sign board support structure 10: road sign board
100: support pillar 200: electronic display board support
300: folding ladder 400: folding safety handrail
500: safety reinforced sheet

Claims (6)

In the road signboard support structure for supporting the road signboard,
Support pillars installed vertically on the ground;
an electronic display board support including upper and lower supports horizontally extending from one side of the support pillar and vertically spaced apart from each other, and connecting supports vertically connecting the upper and lower supports;
a folding ladder installed on the support pole; and
Including a folding safety handrail installed on the electric sign board support at the rear side of the road sign board,
The folding ladder is:
It is installed on the outer circumferential surface of the support pillar, and includes a pair of vertical frames that have a length in the vertical direction and are spaced apart from side to side, and horizontal frames that connect the pair of vertical frames horizontally and are spaced apart in the vertical direction. body frame;
a plurality of step members spaced apart from each other in a vertical direction between the vertical frames, rotating with respect to the vertical frames, and coupled to inner surfaces of the vertical frames to be folded or unfolded, each having a 'U'shape;
a connection member connected in common with the plurality of step members vertically spaced apart in the vertical direction; and
A first driving device spaced upward from the body frame and installed on an outer circumferential surface of the support pillar and rotating the plurality of step members by moving the connection member upward or downward,
The folding safety railing is:
fixing pillars installed on the upper and lower supports and provided as a pair to be spaced apart from each other in the longitudinal direction of the upper and lower supports;
Footrests connected to lower ends of the fixing pillars and including first footrests and second footrests that are coupled to be foldable by hinge members;
a railing portion installed vertically on the second scaffolding unit and including a plurality of vertical posts and horizontal rails connecting between the vertical posts; and
A second driving device installed between the outermost vertical posts facing the fixed pillars among the plurality of vertical pillars and the fixed pillars, and horizontally moving the handrail part away from or closer to the fixed pillars include,
The foldable ladder further includes rotation barriers respectively provided at the lower ends of the horizontal frames,
The horizontal frames and the anti-rotation bumps protrude forward of the vertical frames, the protruding lengths of the anti-rotation protrusions are smaller than the protruding lengths of the horizontal frames,
The hinge members are a first hinge member connecting the first scaffolding portion and the second scaffolding portion, and a second connecting between the fixing pillars and the first scaffolding portion and between the handrail portion and the second scaffolding portion. Including a hinge member,
The connecting member includes a wire commonly connected to the plurality of step members,
The first driving device includes a driving box and a driving motor, a gear, and a pulley provided in the driving box,
The wire of the connecting member is connected to the pulley, and the drive motor provides rotational force to the pulley through the gear,
As the pulley rotates, the wire of the connection member is wound or unwound around the pulley, so that the plurality of step members connected to the wire are rotated upward or downward,
The second driving device includes a hydraulic cylinder device having one end fixed to the upper side of the corresponding fixing column and the other end coupled to the upper side of the corresponding outermost vertical support,
The hydraulic cylinder device includes a cylinder to which hydraulic pressure is supplied, a cylinder rod linearly moving in one direction of the cylinder, and a connecting link connected to an end of the cylinder rod and coupled to an upper side surface of the corresponding outermost vertical support,
Further comprising a safety reinforcement sheet attached to the upper surface of each of the horizontal frames, wherein the safety reinforcement sheet:
Molding process after preparing a base molding composition by mixing a mixed powder material including rubber powder, plastic powder and nanocellulose powder, an antibacterial functional liquid including phytoncide stock solution, juniper sap, and mukdan bark extract, a binder, a dispersant, and additives A base sheet prepared by performing;
a light emitting pattern including light emitting grooves formed on an upper portion of the base sheet and light emitting materials filled in the light emitting grooves;
a protective sheet laminated to cover the upper surface of the base sheet and to seal the light receiving groove filled with the light emitting material; and
A road sign board support structure having a foldable ladder and a foldable safety handrail including a diverging structure including nanopatterns formed on the base sheet so as to overlap the light emitting groove in plan view. delete delete delete delete According to claim 1,
In the base molding composition, rubber powder, plastic powder, and nanocellulose powder are mixed in a weight ratio of 1:0.1 to 0.3:0.1 to 0.3, and phytoncide stock solution, cedar tree sap, and moutan bark extract are 1:0.5 to 1 per 100 parts by weight of the mixed powder material. : 3 to 5 parts by weight of an antimicrobial functional solution mixed at a weight ratio of 0.1 to 0.5, 10 to 20 parts by weight of a binder, 50 to 100 parts by weight of a dispersant, and at least one of a slip agent, an antioxidant, a lubricant, an antiblocking agent, and a heat stabilizer It is prepared to include 1 to 5 parts by weight of an additive to
The luminous material is a road signboard support structure having a folding ladder and a folding safety railing using a mixture of luminous powder and luminous powder in a weight ratio of 1: 0.3 to 0.5.