KR102540696B1 - Footing board for work and manufacturing method thereof - Google Patents

Abstract

The present invention discloses a working scaffold with improved non-slip properties and corrosion resistance that has excellent contact force with the bottom surface of shoes or work shoes and does not cause corrosion even when exposed for a long time.
Accordingly, the scaffold according to the present invention is made of a steel plate P made of SS275 on which a galvanized layer is formed, and the scaffold surface 10 is bent downward at 90 degrees from the front side of the scaffold surface 10 to obtain a predetermined height. A down-bent surface 20 having, and an upward-bent surface 30 having a predetermined height is formed by being bent upward at 90 degrees from the rear side of the scaffolding surface 10, and the scaffolding surface 10 is a plurality at predetermined intervals. It has a first through hole 100 formed through and a plurality of non-slip parts 200 formed at predetermined intervals between the first through holes 100 and non-slip protrusions 220 formed in all directions inclined upward.

Description

Working scaffolding and manufacturing method thereof {Footing board for work and manufacturing method thereof}

The present invention relates to a working scaffold with improved non-slip properties and corrosion resistance and a manufacturing method thereof.

In general, work scaffolds are used to secure a working space in which workers can stand on their feet and perform work at construction sites, factories, and the like.

Such work scaffolds are produced and used in various shapes and configurations so that various tasks can be performed more smoothly, conveniently, and safely.

Conventional work scaffolds that are commonly used are formed with a flat plate structure having a predetermined length and width on which a worker can step. In addition, through holes (holes) are formed at regular intervals on the upper part of the step or an anti-slip part is formed by embossing in an upward direction to protrude.

That is, the conventional work scaffold is configured to prevent slipping by a structure in which a non-slip portion protrudes upward so that the operator can perform the work in a safe state.

However, if the working scaffold is used outside for a long time, corrosion may occur on the step of the scaffold, etc., and the anti-slip function (non-slip property) of the non-slip part may be weakened. Also, if the bottom surface of the worker's shoes or work shoes is smooth, the shoes The contact force or frictional force between the bottom surface of the back and the non-slip portion is weak, so the risk of safety accidents due to slipping increases.

Therefore, there is a need to develop a working scaffold with excellent corrosion resistance and non-slip properties in which the anti-slip function can be reliably maintained even when exposed to the outside for a long time.

Korean Registered Patent No. 1187982

The present invention has been made to solve the above problems, and an object of the present invention is to improve the contact force with the bottom surface of shoes or work shoes and to provide a work stool with improved non-slip and corrosion resistance that does not cause corrosion even when exposed for a long time. .

' 형상의 종단면으로 이루어질 수 있다.In order to achieve the above object, the working scaffold according to the present invention is made of a steel plate made of SS275 material on which the galvanized layer is formed as a film, and is bent downward at 90 degrees from the front side of the scaffolding surface to have a predetermined height. The bending surface and the rear side of the scaffolding surface are bent upward at 90 degrees to form an upward bending surface having a predetermined height.

' It can be made of a longitudinal section of the shape.

As a preferred embodiment of the scaffold according to the present invention, the scaffold surface is formed in plurality at predetermined intervals and has a circular cross section, and a plurality of first through holes formed at predetermined intervals from each other between the first through holes. It has a non-slip portion and coupling holes formed through each of the front and rear sides of both sides.

' 형상의 횡단면으로 관통 형성되는 제2관통홀과, 상기 이격홀에 의해 서로 이격되어 상기 제2관통홀 사방에 형성되면서 상기 발판면 상측으로 60도로 상향 경사지게 각각 형성되되 각각 선단부에 2개의 꼭지부가 형성되어 선단부의 단면이 '

' 형상을 가지고 상기 꼭지부 양측으로 사선부가 형성되는 논슬립돌기로 이루어질 수 있다.In addition, the non-slip part is made of a central hole and a spaced hole, and '

The second through-hole formed through the cross section of the 'shape, spaced apart from each other by the separation hole and formed on all sides of the second through-hole, each formed inclined upward at 60 degrees to the upper side of the scaffolding surface, each having two tips at the front end. Formed, the cross section of the tip is '

It may be made of non-slip protrusions having a 'shape and having oblique portions formed on both sides of the apex.

As an embodiment of the present invention, the up-bending surface according to the present invention may have round portions formed by the chamfering at both upper corner portions, and the down-bending surface according to the present invention may have the upper side corner portions at both lower corner portions. An inclined portion formed by chamfering may be formed.

In addition, the working scaffold according to the present invention comprises the steps (S1) of manufacturing a steel sheet having a predetermined thickness on which a galvanized layer coating is formed through hot-dip galvanizing; After cutting the steel plate manufactured in step (S1) to a predetermined length, a plurality of first through holes and second through holes are formed at predetermined intervals in the scaffold surface area through perforation, and coupling holes are formed on both sides of the scaffold surface area. Forming a step (S2) and; Forming a non-slip part (S3) by inclining the non-slip protrusions formed on all sides of the second through-hole upward at a predetermined angle from the footrest surface through pressure processing after the step (S2); After the step (S3), downwardly bending the front side of the scaffold surface region at 90 degrees to form a downwardly curved surface, and then upwardly bending the rear side of the scaffold surface region at 90 degrees to form an upwardly curved surface (S4); After the step (S4), it may be manufactured by a manufacturing method comprising the step (S5) of performing chamfering on both upper corner portions of the up-bent surface and both lower corner portions of the down-bent surface.

As an embodiment, the hot-dip galvanizing process heat-treats the pre-processed SS275 steel sheet, immerses the steel sheet heated to 475 ~ 550 ° C in a molten plating bath, takes it out and cools it, thereby forming a galvanized layer on the SS275 steel sheet. It is a process to form a film, and the plating bath is aluminum, lead, silicon, ammonium chloride, magnesium, calcium, copper, bismuth, antimony, tin, cerium, manganese dioxide, ytterbium (Yb), yttrium (Y), nickel oxide , titanium, iron, zirconium, and palladium components in a predetermined weight%, respectively, while the rest may include zinc.

The working scaffold of the present invention not only has excellent contact force or gripping force with the bottom surface of shoes or work shoes, but also does not corrode easily even when exposed for a long time, so safety accidents such as falls due to slipping or falling can be surely prevented.

1 shows the appearance configuration of a working scaffold according to the present invention,
Figure 2 shows an embodiment of the working scaffold according to the present invention,
Figure 3 shows the non-slip portion of the working scaffold according to the present invention,
Figure 4 is a cross-sectional view for explaining the configuration of the non-slip portion of the present invention,
5 is a view for explaining a method of manufacturing a work scaffold according to an embodiment of the present invention.

The present invention relates to a working scaffold or a safety scaffold for work with improved corrosion and non-slip properties (non-slip function) by processing a steel plate (P) made of SS275 on which a galvanized layer is formed as a film.

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

' 형상의 종단면으로 이루어진다.First, the working scaffold of the present invention, as shown in FIGS. 1 and 2, has a scaffolding surface 10, a downward bending surface 20, and an upward bending surface 30, and as a whole, '

' It consists of a longitudinal section of the shape.

The scaffold surface 10 of the present invention is a place where a worker steps, and the first through-hole 100 for draining rainwater or water downward to prevent water from pooling on the scaffold surface 10, and the water A non-slip portion 200 that prevents the operator from slipping on the scaffold surface 10 while draining the bottom, and a fastening means (B) such as a coupling bolt to fix the working scaffold of the present invention to the frame (F) It is provided with a coupling hole 300 penetrating.

As one embodiment, as shown in Figure 1, etc., the first through hole 100 may be formed through a plurality of through holes at predetermined intervals in the scaffold surface 10 and have a circular cross section. For example, the first through holes 100 may be formed to pass through each other at intervals of 7 to 9 cm based on the center.

In addition, the non-slip portion 200 may be formed in plurality at predetermined intervals between the first through holes 100, as shown in FIG. It may be formed between the first through holes 100 at intervals of 6 to 7 cm from each other.

In addition, as shown in FIGS. 1 and 2 , the coupling holes 300 may be formed through the front and rear sides of the scaffolding surface 10 or the scaffolding surface region 10A, respectively. For example, the coupling hole 300 may be spaced a predetermined distance from both edges of the scaffolding surface 10 to the inside, respectively, through two formed through each side of the scaffolding surface 10.

' 형상의 횡단면으로 관통 형성되는 제2관통홀(210)과, 상기 이격홀(210B)에 의해 서로 이격되어 상기 제2관통홀(210)의 사방에 형성되는 논슬립돌기(220)로 이루어진다.As shown in FIGS. 3 and 4, the non-slip portion 200 of the present invention is composed of a central hole 210A and a spaced hole 210B, and '

It consists of a second through hole 210 penetrating in a 'shaped cross section, and non-slip protrusions 220 spaced apart from each other by the separation hole 210B and formed on all sides of the second through hole 210.

The central hole 210A of the second through hole 210 is a hole passing through the central portion of the non-slip portion 200, and allows rainwater, etc. to directly pass through and fall while foreign substances are trapped in the upper portion of the non-slip portion 200. It plays a role in making it fall without falling.

The spaced holes 210B of the second through hole 210 are holes formed through all sides of the central hole 210A, and four non-slip protrusions 220 are formed in the second through hole 210 while allowing water to fall in the same way. ) Or it serves to form spaced apart from each other on all sides of the central hole (210A).

Since the non-slip protrusions 220 are formed in all directions, it is possible to prevent an accident in which a worker slips in any direction.

' 형상을 가지고 상기 꼭지부(221) 양측으로 사선부(222)가 형성된다.As a preferred embodiment, the non-slip protrusions 220 are each formed inclined upward at an angle of 60 degrees to the upper side of the scaffolding surface 10, but each has two apex parts 221 formed at the front end so that the cross section of the front end is '

' shape and diagonal portions 222 are formed on both sides of the apex 221.

Each of the non-slip protrusions 220 is inclined upward at 60 degrees so as to protrude upward, so that the contact force or gripping force with the bottom surface of the shoe or work shoe is improved to maximize the anti-slip effect or non-slip effect.

If the non-slip protrusion 220 protrudes at an angle of more than 60 degrees to 90 degrees, rather the bottom surface of the shoe or work shoe is caught on the non-slip protrusion 220 and there is a risk of a worker falling, and if the inclination is less than 60 degrees, the work shoe The contact force or frictional force with the bottom surface of the is reduced, and the non-slip effect is reduced.

' 형상으로 이루어져 선단부에 작업화의 밑바닥면과 접촉하는 꼭지부(221)를 가지고, 2개의 꼭지부(221) 양측에 사선으로 상향 경사진 사선부(222)가 형성된다.In addition, the cross section of the non-slip protrusion 220 is '

' It has a top portion 221 in contact with the bottom surface of the work shoe at the front end, and diagonal portions 222 inclined upward in an oblique direction are formed on both sides of the two top portions 221.

The non-slip effect can be maximized through contact with the bottom surface of the work shoe by the apex 221, and the side of the non-slip protrusion 220 as well as the upper part of the non-slip protrusion 220 by the oblique portion 222. It is also possible to achieve the non-slip effect of the bottom surface of the work shoe.

As an example, the tip of the apex 221 may be formed to be rounded.

' 형상의 종단면으로 이루어진다. In addition, the working scaffold according to the present invention is bent downward at 90 degrees at the front side of the scaffold surface 10, and is bent upward at 90 degrees at the rear side of the downward bending surface 20 and the scaffold surface 10 having a predetermined height. By having an upwardly curved surface 30 having a predetermined height, when the working scaffold is viewed from the side, the working scaffold as a whole is '

' It consists of a longitudinal section of the shape.

The downward bending surface 20 and the upward bending surface 30 are formed on the front side and the rear side of the scaffold surface 10, respectively, so that not only the robustness of the working scaffold is increased, but also the operator when the working scaffold of the present invention is used as a staircase. It is possible to prevent the user's feet from hitting the front edge of the working scaffold or from falling into the empty space between the steps.

As an embodiment, the down-bending surface 20 has an inclined portion 21 having an oblique shape through a well-known chamfering process at both lower edge portions, so that the operator gets stuck on the corner portion of the down-bending surface 20. You can avoid getting hit or injured.

In addition, round portions 31 having a round shape are formed at both corners of the upper end of the upwardly curved surface 30 through a known chamfering process, thereby eliminating the risk of sharp corners made of metal.

As a preferred embodiment of the present invention, the working scaffold may be manufactured by a special manufacturing method detailed below.

The working scaffold of the present invention includes the step (S1) of manufacturing a steel sheet (P) on which a galvanized layer is formed, a first through hole (100), a second through hole (200), and a coupling hole (300) in the steel sheet (P). ) respectively forming a step (S2), forming a non-slip portion 200 on the steel plate (P) (S3), and forming a down-bent surface 20 and an up-bent surface 30 (S4) ) And, it can be manufactured by a manufacturing method comprising the step (S5) of performing a chamfering process.

The step (S1) is a step of manufacturing a steel sheet (P) having a predetermined thickness on which a galvanized layer is formed through hot-dip galvanizing. It may be a process of forming a galvanized layer film on the steel sheet made of SS275 by immersing a steel sheet heated to 475 to 550° C. in a plating bath in a molten state and then taking it out and cooling it.

The pretreatment process may include well-known processes such as pickling, water washing, and degreasing. The reason for forming the galvanized layer on the steel sheet made of SS275, which is the material of the scaffolding of the present invention, is to improve corrosion resistance so that corrosion does not occur even if the scaffold is exposed to the outside for a long time.

This is because when corrosion occurs in the working scaffold, the anti-slip effect (non-slip effect) of the non-slip portion 200 is reduced, increasing the risk of falling.

On the other hand, the SS275 represents one type of steel material based on the Korean Industrial Standards (KS).

In the manufacturing method of the scaffold according to the present invention, the pre-processed SS275 steel sheet is heat-treated and the steel sheet heated to 475 ~ 550 ℃ is immersed in a molten plating bath to perform hot-dip galvanizing treatment, and the corrosion resistance of the galvanized layer coating In order to further improve the corrosion resistance, a plating bath containing a component that increases corrosion resistance is used.

As a preferred embodiment, the plating bath is made of aluminum, lead, silicon, ammonium chloride, magnesium, calcium, copper, bismuth, antimony, tin, cerium, manganese dioxide, ytterbium (Yb), yttrium (Y), nickel oxide, titanium , iron, zirconium, and palladium components at a predetermined weight percent, while the remainder may include zinc, and all of the above components increase corrosion resistance and wear resistance of the metal surface.

As an example, 0.1 to 1% by weight of aluminum, 0.1 to 0.5% by weight of lead, 0.1 to 1% by weight of silicon, 0.1 to 0.5% by weight of ammonium chloride, 0.1 to 1% by weight of magnesium, 0.1 to 0.5 wt% calcium, 0.1 to 1 wt% copper, 0.01 to 0.05 wt% bismuth, 0.1 to 0.5 wt% antimony, 0.1 to 0.5 wt% tin, 0.01 to 0.05 wt% cerium, 0.1 wt% ~ 0.5 wt % manganese dioxide, 0.01 ~ 0.05 wt % ytterbium (Yb), 0.01 ~ 0.05 wt % yttrium (Y), 0.01 ~ 0.05 wt % nickel oxide, 0.01 ~ 0.05 wt % titanium, 0.1 ~ 0.5 Iron in weight percent, 0.01 to 0.03 weight percent zirconium, and 0.001 to 0.01 weight percent palladium may be included along with zinc.

In the step (S2), after cutting the steel plate manufactured in the step (S1) into predetermined horizontal and vertical lengths, as shown in FIG. 5 through known perforation, the scaffold surface area 10A is This is a step of forming a plurality of first through holes 100 and second through holes 210 at intervals and forming coupling holes 300 on both sides of the footrest area 10A.

As previously exemplified, the first through-hole 100 may be formed to pass through each other at 7 to 9 cm horizontal and vertical intervals based on its center, and the second through-hole 210 is the first through-hole ( 100) may be formed at horizontal and vertical intervals of 6 to 7 cm from each other based on the center.

In FIG. 5 , the front region of the scaffold surface region 10A becomes a region where the downward curved surface 20 is formed, and the rear region of the scaffold surface region 10A becomes a region where the upward curved surface 30 is formed. .

The step (S3) is a non-slip portion ( 200) is a step of forming.

As shown in FIG. 4, in the second through hole 210 formed in step S2, non-slip protrusion areas 220A are formed on all sides of the second through hole 210 or the central hole 210A, respectively. A top portion 221A and an oblique portion 222A are formed in the non-slip protrusion area 220A.

The pressing process of step S3 is a process of lifting the non-slip protrusion area 220A upward from the second through hole 210 formed as shown in FIG. It is a process of bending to form an angle of 60 degrees.

After such a pressing process is performed, the apex portion 221A and the oblique portion portion 222A become the apex portion 221 and the oblique portion 222, respectively, to form the second through hole 210 or the central hole 210A. ) Four non-slip protrusions 220 inclined upward at an angle of 60 degrees are formed on all sides.

In step S4, after step S3, the front side of the scaffold surface region 10A is downwardly bent at 90 degrees to form the downwardly curved surface 20, and then the rear side of the scaffold surface region 10A is bent at 90 degrees. This is a step of forming the upward bending surface 30 by upward bending.

At this time, as shown in FIG. 5, the length t1 of the front portion of the scaffold surface region 10A is the height of the downwardly curved surface 20, and the length t2 of the rear portion of the scaffold surface region 10A Is the height of the upward bending surface 30.

The step (S5) is a step of performing chamfering processing on both upper corner portions of the upwardly curved surface 30 and lower both corner portions of the downwardly curved surface 20 after the step (S4), the downwardly curved surface ( 20) is to cut both side corners in an oblique direction, respectively, and to process the upward bending surface 30 so that both side corners are rounded.

An inclined portion 21 as shown in FIG. 1 is formed on the downwardly curved surface 20 by the chamfering process, and a round portion 31 as shown in FIG. 1 is formed on the upwardly curved surface 30. each is formed.

Therefore, the working scaffold of the present invention is manufactured by the above manufacturing method, has excellent corrosion resistance and non-slip properties (anti-slip effect), and can reliably prevent the risk of falling on the working scaffold.

On the other hand, as a result of testing the corrosion resistance or oxidation resistance of the working scaffold of the present invention, as shown in Table 1 below, it was confirmed that there was no abnormality in the degree of corrosion against acid under the condition of exposure to 30% sulfuric acid for 24 hours.

Test Items HS-M Test Methods Chemical resistance (appearance)
30% sulfuric acid, 40℃, 24H clear Chemical Testing and Research Institute Comet size zinc pyrithione clear Chemical Testing and Research Institute

On the other hand, as a preferred embodiment of the present invention, a step of applying a fluorescent material to the surface of the non-slip protrusion area 220A may be added after step S2 and before step S3 of the manufacturing method, so that the non-slip A fluorescent layer may be formed on the surface of the protrusion 220 .

As an example, the phosphor includes polystyrene resin, europium oxide, dysprosium oxide, strontium oxide, neodymium oxide, calcium sulfate, beryllium oxide, chromium oxide, molybdenum, magnesium nitride, fluorine resin, vinyltrimethoxysilane, and tetramethylene glycol. , and an ethyl acrylate component may be contained.

Since all of the above components are fluorescent or luminescent materials or materials with excellent night light reflectance, they exhibit fluorescence or light emitting functions at night and also have high light reflectivity even in weak light, so they can walk or see on the work stool of the present invention at night or in dark conditions. When going up and down the stairs made of the working scaffold of the invention, the operator or the like can easily identify the scaffolding surface 10 of the working scaffold or guide an emergency escape route in case of emergency escape.

As an example, the mixing ratio of the above components is 10% by weight of polystyrene resin, 15% by weight of europium oxide, 15% by weight of dysprosium oxide, 10% by weight of strontium oxide, 10% by weight of neodymium oxide, based on the total weight% of the phosphor or the phosphor layer composition. % by weight, calcium sulfate 5% by weight, beryllium oxide 5% by weight, chromium oxide 5% by weight, molybdenum 5% by weight, magnesium nitride 5% by weight, fluororesin 5% by weight, vinyltrimethoxysilane 5% by weight, tetramethylene glycol It may consist of 3% by weight and 2% by weight of ethyl acrylate, and according to such a component combination, the nighttime fluorescent effect or luminous effect or visibility of the working scaffold of the present invention is further increased.

Although preferred embodiments of the present invention have been described above, it will be apparent to those skilled in the art that various modifications are possible within the scope of the technical idea of the present invention. Accordingly, the foregoing content is not intended to limit the scope of the present invention as defined by the following claims.

10: scaffolding surface, 20: downward bending surface, 21: inclined portion,
30: upward bending surface, 31: round part, 100: first through hole,
200: non-slip part, 210: second through hole, 210A: central hole,
210B: spaced hole, 220: non-slip protrusion, 221: apex.
300: coupling hole, 10A: scaffold surface area, F: frame.

Claims (3)

delete ◈Claim 2 was abandoned when the registration fee was paid.◈ In the method of manufacturing a working scaffold,
manufacturing a steel sheet having a predetermined thickness on which a galvanized layer is formed through hot-dip galvanizing (S1);
After cutting the steel plate manufactured in step S1 to a predetermined length, a plurality of first through holes 100 and second through holes 210 are formed at predetermined intervals in the scaffold surface area 10A through perforation. forming and forming coupling holes 300 on both sides of the scaffold surface region 10A (S2);
Forming a non-slip portion 200 by inclining the non-slip protrusions 220 formed on all sides of the second through-hole 210 after the step (S2) upward at an angle of 60 degrees from the footrest surface 10 through pressure processing (S3) and;
After step S3, the front side of the scaffold surface region 10A is bent downward at 90 degrees to form the downwardly curved surface 20, and then the rear side of the scaffold surface region 10A is upwardly bent at 90 degrees to form the upwardly curved surface. Step (S4) of forming (30);
After the step (S4), a step (S5) of performing chamfering on both upper corner portions of the upwardly curved surface 30 and both lower corner portions of the downwardly curved surface 20,
The hot-dip galvanizing process,
It is a process of forming a galvanized layer on the SS275 steel sheet by heat-treating the pre-processed SS275 steel sheet, immersing the steel sheet heated to 475 ~ 550 ℃ in a plating bath in a molten state, and then taking it out and cooling it,
The plating bath includes aluminum, lead, silicon, ammonium chloride, magnesium, calcium, copper, bismuth, antimony, tin, cerium, manganese dioxide, ytterbium (Yb), yttrium (Y), nickel oxide, titanium, iron, zirconium, and a palladium component at a predetermined weight percent, while the remainder includes zinc,
A step (S2-1) of forming a fluorescent layer on the surface of the non-slip protrusion 220 by applying a phosphor to the surface of the non-slip protrusion area 220A after the step S2 and before the step S3,
The fluorescent materials include polystyrene resin, europium oxide, dysprosium oxide, strontium oxide, neodymium oxide, calcium sulfate, beryllium oxide, chromium oxide, molybdenum, magnesium nitride, fluororesin, vinyltrimethoxysilane, tetramethylene glycol, and ethyl acrylate. contains ingredients,
The non-slip part 200,
It consists of a central hole (210A) and a spaced hole (210B) '

A second through hole 210 formed through the 'shaped cross section,
While being spaced apart from each other by the separation holes 210B and formed on all sides of the second through-hole 210, they are formed inclined upward at an angle of 60 degrees to the upper side of the scaffolding surface 10, but each has two apex portions 221 at the front end. ) is formed so that the cross section of the tip is '

A method for manufacturing a scaffold, characterized in that it consists of non-slip protrusions 220 having a 'shape and having oblique portions 222 formed on both sides of the apex 221.
In the work platform,
manufacturing a steel sheet having a predetermined thickness on which a galvanized layer is formed through hot-dip galvanizing (S1);
After cutting the steel plate manufactured in step S1 to a predetermined length, a plurality of first through holes 100 and second through holes 210 are formed at predetermined intervals in the scaffold surface area 10A through perforation. forming and forming coupling holes 300 on both sides of the scaffold surface region 10A (S2);
Forming a non-slip portion 200 by inclining the non-slip protrusions 220 formed on all sides of the second through-hole 210 after the step (S2) upward at an angle of 60 degrees from the footrest surface 10 through pressure processing (S3) and;
After step S3, the front side of the scaffold surface region 10A is bent downward at 90 degrees to form the downwardly curved surface 20, and then the rear side of the scaffold surface region 10A is upwardly bent at 90 degrees to form the upwardly curved surface. Step (S4) of forming (30);
After the step (S4), a step (S5) of performing chamfering on both upper corner portions of the upwardly curved surface 30 and both lower corner portions of the downwardly curved surface 20,
The hot-dip galvanizing process,
It is a process of forming a galvanized layer on the SS275 steel sheet by heat-treating the pre-processed SS275 steel sheet, immersing the steel sheet heated to 475 ~ 550 ℃ in a plating bath in a molten state, and then taking it out and cooling it,
The plating bath includes aluminum, lead, silicon, ammonium chloride, magnesium, calcium, copper, bismuth, antimony, tin, cerium, manganese dioxide, ytterbium (Yb), yttrium (Y), nickel oxide, titanium, iron, zirconium, And a working scaffold manufactured by a manufacturing method comprising a palladium component in a predetermined weight% and the remainder including zinc,
The galvanized layer is made of a steel sheet (P) made of SS275 material formed as a film,
Scaffolding surface 10, a downwardly bent surface 20 bent downward at 90 degrees from the front side of the scaffolding surface 10 and having a predetermined height, and upwardly bent at 90 degrees from the rear side of the scaffolding surface 10 to a predetermined height An upward bending surface 30 having is formed, and as a whole '

' It consists of a longitudinal section of the shape,
The scaffolding surface 10,
A first through hole 100 formed in plurality at predetermined intervals and having a circular cross section;
A plurality of non-slip parts 200 formed at predetermined intervals between the first through holes 100,
Equipped with coupling holes 300 formed through each of the front and rear sides,
The first through holes 100 are formed through each other at horizontal and vertical intervals of 7 to 9 cm based on the center,
The non-slip part 200,
It consists of a central hole (210A) and a spaced hole (210B) '

A second through hole 210 formed through the 'shaped cross section,
While being spaced apart from each other by the separation holes 210B and formed on all sides of the second through-hole 210, they are formed inclined upward at an angle of 60 degrees to the upper side of the scaffolding surface 10, but each has two apex portions 221 at the front end. ) is formed so that the cross section of the tip is '

It is composed of non-slip protrusions 220 having a 'shape and having oblique portions 222 formed on both sides of the apex 221,
The downwardly curved surface 20 is formed with inclined portions 21 formed by the chamfering process at both side corners of the lower end,
The upward bending surface 30 is formed with a round portion 31 formed by the chamfering process at both corner portions of the upper end,
A step (S2-1) of forming a fluorescent layer on the surface of the nonslip protrusion 220 by applying a phosphor to the surface of the nonslip protrusion area 220A after the step S2 and before the step S3;
The fluorescent materials include polystyrene resin, europium oxide, dysprosium oxide, strontium oxide, neodymium oxide, calcium sulfate, beryllium oxide, chromium oxide, molybdenum, magnesium nitride, fluororesin, vinyltrimethoxysilane, tetramethylene glycol, and ethyl acrylate. Working scaffold, characterized in that the component is contained.

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