MODULAR SCAFFOLDING SYSTEM HAVING PROTECTIVE MEMBER

Abstract

A scaffolding system includes a plurality of scaffolding modules capable of being assembled with each other. Each of the scaffolding modules includes: a frame having a plurality of wire rods interconnected to form a worker accommodation space, and having a scaffold plank part and a plurality of sidewall parts erected with respect to the scaffold flank part; and a protective member having a wooden plate layer, which is formed of a wooden plate body and fixedly provided to cover at least some of the side wall parts of the frame, and a hard elastic layer, which is formed of a polyurea material and applied to one surface of the wooden plate layer.

Claims

1. A scaffolding system comprising a plurality of scaffolding modules that are mutually assemblable, wherein the scaffolding module comprises: a frame provided to form an accommodation space for workers by mutually coupling a plurality of wire rods, and having a footboard portion and a plurality of sidewall portions erected with respect to the footboard portion; and a protective member having a wooden board layer which is a wooden plate body fixedly provided to cover at least a portion of the sidewall portion of the frame, and a hard elastic layer applied to one surface of the wooden board layer and formed of a polyurea material, wherein the frame has a stacking ring portion having a ring shape that protrudes upward from an upper portion thereof such that the scaffolding module is hung and transported by a crane, the wire rods are tubular bodies, a lower portion of the frame has a stacking accommodating portion that accommodates a stacking ring portion of another scaffolding module when a pair of scaffolding modules among the scaffolding modules are stacked, and a width of the stacking ring portion decreases in a protruding direction to be accommodated in the stacking accommodating portion and is provided to correspond to an inner diameter of the stacking accommodating portion.

2. The scaffolding system of claim 1, wherein the protective member further includes an auxiliary coating layer that overlaps the hard elastic layer and includes at least one material selected from polyurethane, polyvinyl chloride (PVC), epoxy, and silicone, and the hard elastic layer is partially applied to one surface of the wooden board layer.

3. The scaffolding system of claim 1, wherein the protective member is formed by plasma-treating a surface of the wooden board layer and then applying the hard elastic layer.

4. The scaffolding system of claim 1, further comprising a corner module installed between and coupled to a pair of scaffolding modules, which are arranged to intersect at a horizontal corner, among the scaffolding modules, wherein the corner module includes: a plurality of vertical pillars forming sidewalls; a safety bar installed horizontally between a pair of vertical pillars among the vertical pillars; and safety bar attachment/detachment portions formed as U-shaped bodies having openings and provided on facing surfaces of the pair of vertical pillars such that opposite ends of the safety bar are detachably fixed through the openings.

5. (canceled)

Description

DESCRIPTION OF DRAWINGS

[0022] FIG. 1 illustrates a scaffolding system provided by assembling a plurality of scaffolding modules according to an embodiment of the present invention.

[0023] FIG. 2 illustrates an example of the scaffolding module shown in FIG. 1.

[0024] FIG. 3 illustrates an example of a protective member provided on the scaffolding module shown in FIG. 1.

[0025] FIG. 4 illustrates an example of a corner module installed between and coupled to a pair of scaffolding modules shown in FIG. 1.

[0026] FIG. 5 illustrates an example of a stacking accommodating portion and a stacking ring portion provided on the scaffolding module shown in FIG. 1.

[0027] FIG. 6 illustrates an example of a soundproof panel installed on an upper side of a frame shown in FIG. 1.

BEST MODE

[0028] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The following description is provided so that those skilled in the art to which the present invention pertains can readily carry out the invention, and is not intended to limit the technical spirit or scope of the present invention.

[0029] FIG. 1 illustrates a scaffolding system 1 provided by assembling a plurality of scaffolding modules 2 according to an embodiment of the present invention, FIG. 2 illustrates an example of the scaffolding module 2 in FIG. 1, and FIG. 3 illustrates an example of a protective member 7 provided on the scaffolding module 2 shown in FIG. 1. Hereinafter, a scaffolding system 1 according to the embodiment will be described in detail with reference to FIGS. 1 to 3.

[0030] The scaffolding system 1 according to the embodiment is a temporary structure installed at a building demolition site or the like and includes a plurality of scaffolding modules 2 that are mutually assemblable. For example, in demolition of a building installed in a building area P, when the scaffolding modules 2 are mutually assembled to surround a part of the periphery of the building area P, workers may freely move between accommodation spaces S formed by the scaffolding modules 2 and perform operations required for building demolition. The assembly of scaffolding modules 2 may include mutual connection of scaffolding modules 2 in an X-axis direction or a Y-axis direction and mutual stacking of scaffolding modules 2 in a Z-axis direction. A crane, a hoist, and the like may be used for the assembly of the scaffolding modules 2. Since the scaffolding system 1 may be implemented in a modular form, the scaffolding system 1 may provide superiority in terms of convenience of installation and dismantling of scaffolding modules 2, as well as rigidity and safety of the scaffolding modules 2, compared to conventional scaffolding systems in which workers manually connect steel pipes vertically. However, the scaffolding system 1 is not limited to installation at a building demolition site but may also be installed at a construction site to enable workers to perform operations required for building construction.

[0031] In more detail, the scaffolding module 2 of the scaffolding system 1 includes a frame 6 and a protective member 7. The frame 6 is provided to form an accommodation space S for workers by mutually coupling a plurality of wire rods 3 and has a footboard portion 4 and a plurality of sidewall portions 5 erected with respect to the footboard portion 4.

[0032] The plurality of wire rods 3 may be mutually welded to form an accommodation space S for workers. However, the plurality of wire rods 3 may also be connected by connecting members, such as a clamp, in addition to welding. The wire rods 3 may be provided as quadrangular tubular bodies but are not limited thereto and may also be provided as a tubular body of a circular shape or the like.

[0033] The footboard portion 4 may be provided in a plate shape parallel to the X-axis and Y-axis directions such that workers may stably move back and forth within the accommodation space S. In FIG. 2, four sidewall portions 5 are illustrated as being erected vertically in the Z-axis direction from the corners of the footboard portion 4, but the invention is not limited thereto, and sidewall portions 5 may be additionally erected vertically from regions other than the corners of the footboard portion 4.

[0034] The protective members 7 may prevent scattering of dust generated during a building demolition operation and prevent diffusion of noise. In particular, the protective member 7 has a wooden board layer 21 which is a wooden plate body fixedly provided to cover at least a portion of the sidewall portion 5 of the frame 6, and a hard elastic layer 22 applied to one surface of the wooden board layer 21 and formed of a polyurea material. For example, when the sidewall portion 5 includes an inner sidewall portion 11 and an outer sidewall portion 12 facing each other in the X-axis direction, the wooden board layer 21 may be fixedly provided to cover at least a portion of the inner sidewall portion 11. The inner sidewall portion 11 may be closer to the building area (P) than the outer sidewall portion 12. In FIG. 2, the inner sidewall portion 11 is illustrated as being covered by two protective members 7, but the invention is not limited thereto, and the inner sidewall portion 11 may be entirely covered by a single protective member 7 that extends slightly further in the Y-axis direction, or may be covered in sections by three or more protective members 7 that are slightly shorter in the Y-axis direction.

[0035] Since the wooden board layer 21 has elasticity, flexibility, resilience, and the like of wood, the wooden board layer 21 easily absorbs physical impacts and has a benefit of recovering to its original state even when deformed by impact. On the other hand, a metal plate has high fluidity of metal and thus is easily dented by physical impact and difficulty in recovering its original state.

[0036] The hard elastic layer 22 serves to increase the rigidity limit against impact. That is, when the protective member 7 with the hard elastic layer 22 applied to the wooden board layer 21 is used, the wooden board layer 21 is prevented from being damaged even when an impact exceeding the inherent rigidity limit of the wooden board layer 21 is applied. On the other hand, when a physical impact is applied to a wooden board layer without the hard elastic layer 22 applied, an impact exceeding the inherent rigidity of the wooden board layer may cause the wooden board layer to be easily damaged.

[0037] As a material for the hard elastic layer 22, polyurea has excellent waterproofing properties and is typically used as a waterproofing agent for water tanks and the like in which prevention of liquid penetration is required, but compared to when polyurethane having a similar chemical structure is applied to the wooden board layer 21, polyurea may enable the wooden board layer 21 to have high tensile strength and bending strength, thereby maximizing the rigidity limit against impact.

[0038] Polyurea may be applied to the wooden board layer 21 by a method such as spray coating, cast coating, and the like. A spray coating method is a method of spraying polyurea onto a surface of the wooden board layer 21 using a high-pressure spray machine, and a cast coating method is a method of spreading polyurea over a surface of the wooden board layer 21. Polyurea may be applied to one surface of the wooden board layer 21 or may be applied to both surfaces to further enhance the rigidity improvement effect.

[0039] As described above, the protective member 7 not only prevents dust scattering and noise diffusion, but also, due to the improved rigidity provided by the hard elastic layer 22, maximally prevents damage to the protective member 7 even when building debris falls onto the scaffolding modules 2 during a building demolition operation. Therefore, worker injuries in the accommodation space S and damage to the scaffolding modules 2 caused by building debris may be prevented, thereby providing a safe working environment.

[0040] According to various embodiments, as shown in FIG. 3A, the protective member 7 is formed by plasma-treating the surface of the wooden board layer 21 and then applying the hard elastic layer 22. For example, plasma treatment may be performed on the surface of the wooden board layer 21 by moving a plasma device 23 along the surface of the wooden board layer 21.

[0041] Plasma treatment may activate surface molecules of the wooden board layer 21, thereby improving adhesion of the hard elastic layer 22 to the surface of the wooden board layer 21. When the adhesion of the hard elastic layer 22 is improved, the rigidity of the protective member 7 may be further improved and the amount and frequency of applying the hard elastic layer 22 may be minimized, thereby improving cost efficiency.

[0042] According to various embodiments, the protective member 7 further includes an auxiliary coating layer 24 that overlaps the hard elastic layer 22 and includes at least one material selected from polyurethane, polyvinyl chloride (PVC), epoxy, and silicone. At least one of polyurethane, PVC, epoxy, and silicone has the benefit of being less expensive compared to polyurea but has the drawback of providing less improvement in rigidity of the wooden board layer 21 compared to polyurea. Therefore, for rigidity reinforcement of the wooden board layer 21, it is preferable to apply the auxiliary coating layer 24 together with the hard elastic layer 22 rather than applying the auxiliary coating layer 24 alone. For example, as shown in FIG. 3B, the auxiliary coating layer 24 may first be applied to a surface of the wooden board layer 21 and the hard elastic layer 22 may then be applied on the auxiliary coating layer 24, or as shown in FIG. 3C, the hard elastic layer 22 may first be applied to a surface of the wooden board layer 21 and the auxiliary coating layer 24 may then be applied on the hard elastic layer 22.

[0043] The use of the auxiliary coating layer 24, which is less expensive than the hard elastic layer 22, together with the hard elastic layer 22, may secure the rigidity of the protective member 7 while minimizing the applied amount and number of applications of the costly hard elastic layer 22, thereby improving cost efficiency.

[0044] According to various embodiments, when the hard elastic layer 22 and the auxiliary coating layer 24 are applied together, the hard elastic layer 22 or the auxiliary coating layer 24 is partially applied to one surface of the wooden board layer 21 in a grid pattern, scattered pattern, or the like.

[0045] According to this, the rigidity of the protective member 7 may be secured while further minimizing the application amount and number of applications of the expensive hard elastic layer 22, thereby further improving cost efficiency.

[0046] According to various embodiments, the wooden board layer 21 includes a medium-density fiberboard (MDF). While general plywood is manufactured by stacking wood in a plurality of layers and bonding the plurality of layers with an adhesive, leaving air between layers, an MDF is manufactured by crushing wood and compressing the crushed wood together with an adhesive resin, during which air is removed.

[0047] Therefore, an MDF has higher rigidity and density compared to general plywood and has uniform surface characteristics. In particular, due to the uniform surface characteristics, the application quality of the hard elastic layer 22 is excellent.

[0048] According to various embodiments, the protective member 7 may include a guide member 26 provided along an outer edge of the wooden board layer 21. The guide member 26 may be formed of metallic materials, such as iron (Fe), aluminum (Al), and the like, but is not limited thereto and may also be formed of a synthetic resin, such as plastic. The guide member 26 not only protects the outer edge of the wooden board layer 21 but also serves to supplement the rigidity of the protective member 7. Meanwhile, the protective member 7 may be fixedly coupled to the frame 6 by fixing members 25, such as bolts.

[0049] According to various embodiments, the outer sidewall portion 12 of the frame 6 may also be provided with an auxiliary protective member 8. The auxiliary protective member 8 may also be provided with the same configuration as the protective member 7. For example, the auxiliary protective members 8 may also have a wooden board layer 21 fixedly provided to cover at least a portion of the outer sidewall portion 12 and a hard elastic layer 22 applied to one surface of the wooden board layer 21. Detailed description of the configuration of the auxiliary protective members 8 is omitted since it is identical to the previous description. The auxiliary protective member 8 may also have a different configuration from the protective member 7.

[0050] According to various embodiments, the scaffolding module 2 may be provided with a wire fastening ring 38 on which a wire 39 is hung. The wire 39 may include a rubber band, a rope, and the like. The wire fastening ring 38 may be disposed on the wire rod 3. The wire 39 may firmly bind or connect not only adjacent scaffolding modules 2 but also scaffolding modules 2 spaced apart from each other, thereby improving the coupling force between the adjacent scaffolding modules 2 or the spaced-apart scaffolding modules 2.

[0051] Therefore, using the wire 39 and the wire fastening ring 38 may improve the overall stability of the scaffolding system 1.

[0052] FIG. 4 illustrates an example of a corner module 30 installed between and coupled to a pair of scaffolding modules 20 shown in FIG. 1. The corner module 30 may be provided in plurality according to the form of the scaffolding system 1, but for convenience of description, it is assumed that the corner module 30 is installed between and coupled to a first scaffolding module 31 and a second scaffolding module 32. That is, the corner module 30 is installed between and coupled to the first scaffolding module 31 and the second scaffolding module 32 that are arranged to intersect at a horizontal corner.

[0053] The corner module 30 includes a plurality of vertical pillars 33 forming a sidewall, a safety bar 34 installed horizontally between a pair of vertical pillars 33 among the plurality of vertical pillars 33, and safety bar attachment/detachment portions 35 formed as U-shaped bodies having openings and provided on facing surfaces of the pair of vertical pillars 33 such that opposite ends of the safety bar 34 are detachably fixed through the openings. For example, when the corner module 30 has four sides, safety bars 34 are not mounted on the safety bar attachment/detachment portions 35 for two sides 37 that are connected to the first scaffolding module 31 and the second scaffolding module 32 among the four sides. As described above, the accommodation spaces S of the first scaffolding module 31 and the second scaffolding module 32 are interconnected, thereby allowing workers to freely move between the pair of accommodation spaces S. In addition, for the remaining two sides among the four surfaces, safety bars 34 are mounted on the safety bar attachment/detachment portions 35, thereby guiding workers moving between the pair of accommodation spaces S not to exit through the two sides not connected to the first scaffolding module 31 and the second scaffolding module 32.

[0054] Accordingly, the use of the safety bars 34 and the safety bar attachment/detachment portions 35 may enable the accommodation spaces S of the first scaffolding module 31 and the second scaffolding module 32 to be easily connected regardless of the installation direction of the corner module 30 with respect to the first scaffolding module 31 and the second scaffolding module 32, thereby improving cost efficiency, and also guide workers moving in the accommodation spaces S of the first scaffolding module 31 and the second scaffolding module 32 not to exit through surfaces not connected to the first scaffolding module 31 and the second scaffolding module 32, thereby improving safety.

[0055] According to various embodiments, in FIG. 4, the opening of the safety bar attachment/detachment portion 35 is formed in the Z-axis direction, but when the direction of the opening is slightly inclined toward the inside of the corner module 30, workers attempting to exit in a direction in which the first scaffolding module 31 and the second scaffolding module 32 are not connected may be more easily prevented.

[0056] FIG. 5 illustrates an example of a stacking accommodating portion 44 and a stacking ring portion 45 provided on the scaffolding module shown in FIG. 1. Hereinafter, for convenience of description, a third scaffolding module 41 and a fourth scaffolding module 42 that are stacked vertically are taken as an examples, but it should be noted that the following description is not limited to the third scaffolding module 41 and the fourth scaffolding module 42.

[0057] When the wire rods 3 of the third scaffolding module 41 and the fourth scaffolding module 42 are provided as tubular bodies, the frame 6 of the third scaffolding module 41 on the upper side has a stacking accommodating portion 44 at the end of the tubular body, and the frame 6 of the fourth scaffolding module 42 on the lower side has a stacking ring portion 45 that protrudes to be accommodated in the stacking accommodating portion 44 and has a ring shape that narrows in width in the protruding direction. The stacking ring portion 45 may be used when transporting the fourth scaffolding module 42 and may also be used when stacking the third scaffolding module 41 on the fourth scaffolding module 42. In particular, since the stacking ring portion 45 has a ring shape that narrows in width in the protruding direction, the stacking ring portion 45 may be easily accommodated in the stacking accommodating portion 44 when stacking the third scaffolding module 41 on the fourth scaffolding module 42, and when fully accommodated, the spacing between the stacking ring portion 45 and stacking accommodating portion 44 may be minimized.

[0058] Thus, the ring shape of the stacking ring portion 45 may facilitate stacking between the scaffolding modules 2 and improve stacking stability. Also, since the stacking ring portion 45 performs both transportation and stacking functions of the scaffolding module 2, cost efficiency may be improved compared to providing separate configurations for each function.

[0059] FIG. 6 illustrates an example of a soundproof panel 53 installed on an upper side of a frame 6 shown in FIG. 1.

[0060] As shown in FIG. 6, the scaffolding system 1 includes a soundproof panel 53 that is installed in a plate shape along the upper side of the frame 6 and is provided to be inclined at a predetermined angle. The soundproof panel 53 may be installed only on some frames 6, and the inclination angle may be adjusted according to the design method. The soundproof panel 53 may be installed on the upper side of the frame 6 through a separate frame.

[0061] By having the soundproof panel 53 as described above, damage to the surroundings caused by building demolition noise may be reduced.

[0062] Although the present invention has been described in detail through preferred embodiments above, the present invention is not limited thereto and may be implemented in various ways within the scope of the patent claims.