Folding scaffold device

Abstract

The present invention discloses a folding scaffold device, and the folding scaffold device according to one embodiment of the present invention comprises: a support frame for supporting an object; and a column frame located below the support frame and rotatably connected to the support frame, the column frame including a plurality of divided frames sequentially connected from the support frame, the plurality of divided frames being rotatably connected to each other, and in a first state, the plurality of divided frames being rotatably connected to each other. In a first state in which the plurality of split frames are rotated from a first state, each longitudinal direction of the plurality of split frames faces the ground, and in a second state in which the plurality of split frames are rotated from a first state, each longitudinal direction of the plurality of split frames is parallel to the ground.

Description

Technical Field

[0001] The invention relates to a foldable scaffold device, in particular to a foldable scaffold device which can be switched to a folded state and an unfolded state. Background Art

[0002] A scaffold is a device that supports loads such as workers, work objects, and work tools. It allows workers to access and perform work in areas where the work area is located at a certain height above the ground.

[0003] Scaffolding systems can be used in a variety of industrial fields. For example, scaffolding systems can be used when working on objects high above the ground, such as buildings, cars, ships, and structures.

[0004] The scaffolding device may include a support frame that supports an object such as a worker, a work object, or a work tool at a position separated from the ground, and may include a column frame for supporting the support frame from the ground or the like.

[0005] On the other hand, when the working position of the work object is at a high position, the scaffolding device stored in the storage place can be moved to the work area and installed and used. When the work is completed, the scaffolding device can be disassembled and stored again.

[0006] Related document KR20-0358429Y discloses a scaffolding device, in which a portion of the frame structure is folded to achieve conversion between a folded state and an unfolded state.

[0007] The scaffold apparatus of the related art removes a support frame or a step for supporting an object from the scaffold apparatus in an unfolded state, and folds a connection frame connecting a pair of column frames to narrow the interval between the pair of column frames.

[0008] However, as for the scaffolding device in the related literature, even if the scaffolding device is folded, the total height of the scaffolding device will not be reduced, which is not conducive to moving and storing scaffolding devices above the specified height. In addition, the above-mentioned connecting frame protrudes from the column frame, so the space required for storage increases.

[0009] Therefore, an important issue in this technical field is to develop a foldable scaffolding device that effectively reduces the overall height in a folded state for storage, thereby improving operability, and minimizes the space required for storage, thereby improving space utilization, and further, can stably support the load of an object despite having a foldable structure. Summary of the Invention

[0010] (Problems to be solved by the invention)

[0011] An embodiment of the present invention is directed to providing a foldable scaffolding device that can stably support the load of an object.

[0012] Additionally, embodiments of the present invention are directed to providing a foldable scaffolding apparatus that can be efficiently increased or decreased in size.

[0013] In addition, embodiments of the present invention are directed to providing a foldable scaffolding apparatus, at least a portion of a frame of which is effectively folded or unfolded, thereby being variable in size.

[0014] In addition, embodiments of the present invention are directed to providing a foldable scaffolding apparatus that can effectively suppress an increase in the area required on the ground in both the folded state and the unfolded state.

[0015] In addition, embodiments of the present invention are directed to providing a foldable scaffolding device that can effectively maintain an unfolded state.

[0016] In addition, embodiments of the present invention are directed to providing a foldable scaffolding device that can be conveniently folded or unfolded by workers.

[0017] In addition, embodiments of the present invention are directed to providing a foldable scaffolding device, which can effectively reduce the overall height when in a folded state.

[0018] (Measures taken to resolve the problem)

[0019] A foldable scaffolding device according to an embodiment of the present invention includes a support frame and a column frame. The support frame supports an object, and the column frame is located below the support frame and rotatably connected to the support frame.

[0020] The column frame includes a plurality of split frames sequentially connected from the support frame, and the plurality of split frames are rotatably connected to each other.

[0021] In the first state, the longitudinal directions of the plurality of split frames face the ground. In the second state in which the plurality of split frames are rotated from the first state, the longitudinal directions of the plurality of split frames may be parallel to the ground.

[0022] In the second state, the split frame may be arranged so as not to extend beyond a portion between both ends of the support frame based on a longitudinal direction of the support frame.

[0023] The column frame may further include a split hinge shaft rotatably connecting a pair of adjacent split frames among the split frames, and the split frames may be rotated in the first state to move the split hinge shaft toward the support frame and converted to the second state.

[0024] In the second state, a portion of the column frame may protrude beyond the support frame in a direction transverse to a longitudinal direction of the support frame.

[0025] In the second state, a portion of each of the plurality of divided frames may protrude beyond the support frame in a direction transverse to a longitudinal direction of the support frame.

[0026] The multiple split frames may include a first split frame and a second split frame, one end of the first split frame may be rotatably connected to the support frame, and one end of the second split frame may be rotatably connected to the other end of the first split frame.

[0027] During the transition from the first state to the second state, the other end portion of the first divided frame and the one end portion of the second divided frame may rotate so as to approach the supporting frame.

[0028] The support frame may include a plurality of support members, and the plurality of support members may include a main support member and a linkage support member rotatably coupled to the main support member and rotating in conjunction with the column frame.

[0029] The support frame may include a support cross section whose sides are respectively defined by the support components, and one of the sides of the support cross section may be defined by the linkage support component.

[0030] During the rotation from the first state to the second state, the column frame may be deformed in such a manner that the height of the supporting section decreases.

[0031] During the transition from the first state to the second state, the support cross section may be deformed by a four-bar linkage so that a pair of opposite sides of the plurality of sides approach each other in a state of being parallel to each other.

[0032] The main support component and the linkage support component may extend along a first direction parallel to the ground, and the linkage support component may be connected to the main support component via a support hinge shaft extending along the first direction.

[0033] The interlocking support member may be positioned below the main support member in the first state, and may be aligned with the interlocking support member in a direction parallel to the ground in the second state.

[0034] During the transition from the first state to the second state, at least a portion of the column frame, together with the interlocking support member, may protrude in a direction parallel to the ground relative to the main support member.

[0035] An embodiment of the present invention may further include a linkage joint for rotatably connecting the linkage support component and the column frame so as to enable the linkage support component to be linked to the column frame.

[0036] The joint axis of the linkage joint can rotate together with the linkage support component. The column frame can be connected to the support frame via an upper hinge axis, and the joint axis of the linkage joint and the upper hinge axis can extend in different directions.

[0037] The upper hinge shaft, the support hinge shaft, and the joint shaft may have different axial directions. The upper hinge shaft may extend in a second direction perpendicular to the first direction, and the joint shaft may extend obliquely with respect to the first direction.

[0038] The above-mentioned linkage support component may include a support inclined portion extending obliquely relative to the above-mentioned first direction, the above-mentioned column frame may include a column inclined portion positioned opposite to the above-mentioned support inclined portion and extending parallel to the above-mentioned support inclined portion, and the above-mentioned linkage joint may connect the above-mentioned support inclined portion and the above-mentioned column inclined portion in a rotatable manner.

[0039] At least a portion of the column frame may be linked to the linkage support member via the linkage joint and rotate around the upper hinge shaft.

[0040] The column frame may include a plurality of column components and a column cross section having a plurality of sides defined by the plurality of column components. One of the column components defining one side of the column cross section may include the column inclined portion.

[0041] During the transition from the first state to the second state, a pair of opposite sides of the column cross section may approach each other in a parallel state through a four-bar linkage motion.

[0042] One embodiment of the present invention may further include a bottom frame disposed below the column frame. The column frame may be rotatably connected to the support frame via an upper hinge shaft and rotatably connected to the bottom frame via a lower hinge shaft.

[0043] The plurality of split frames may include a first split frame connected to the support frame via the upper hinge shaft and a second split frame connected to the first split frame via a split hinge shaft and connected to the bottom frame via the lower hinge shaft.

[0044] During the transition from the first state to the second state, the split hinge shaft may move closer to the center of the support frame.

[0045] (Effects of the Invention)

[0046] Embodiments of the present invention may provide a foldable scaffolding device that can stably support the load of an object.

[0047] Additionally, embodiments of the present invention may provide a foldable scaffolding apparatus that can be efficiently increased or decreased in size.

[0048] In addition, embodiments of the present invention may provide a foldable scaffolding apparatus in which at least a portion of a frame is effectively folded or unfolded, thereby being variable in size.

[0049] In addition, embodiments of the present invention can provide a foldable scaffolding device that can effectively suppress an increase in the required area on the ground in the folded state and the unfolded state.

[0050] Additionally, embodiments of the present invention may provide a foldable scaffolding device that can effectively maintain an unfolded state.

[0051] In addition, embodiments of the present invention may provide a foldable scaffolding device that can be conveniently folded or unfolded by workers.

[0052] In addition, embodiments of the present invention may provide a foldable scaffolding device that can effectively reduce the overall height when in a folded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 FIG. 1 is a perspective view showing a foldable scaffolding device according to one embodiment of the present invention.

[0054] Figure 2 It shows Figure 1 A perspective view of a foldable scaffolding device folding from a first state to a second state.

[0055] Figure 3 It shows Figure 1 A perspective view of the foldable scaffolding device in a second state of being fully folded.

[0056] Figure 41 is a front view showing a foldable scaffolding apparatus in a first state fully unfolded according to an embodiment of the present invention.

[0057] Figure 5 It shows Figure 4 A front view of the process of a foldable scaffolding device being folded.

[0058] Figure 6 It shows Figure 4 A front view of a second state of the foldable scaffolding device being fully folded.

[0059] Figure 7 FIG. 1 is a diagram showing a hinge portion rotatably connecting a frame in one embodiment of the present invention.

[0060] Figure 8 FIG. 1 is a diagram showing an expanded state of frames connected by hinges in one embodiment of the present invention.

[0061] Figure 9 It shows Figure 8 A diagram of the process of a frame being folded.

[0062] Figure 10 FIG. 1 is a diagram showing a support frame of a foldable scaffolding apparatus according to an embodiment of the present invention.

[0063] Figure 11 FIG. 1 is a diagram illustrating a column frame of a foldable scaffolding apparatus according to an embodiment of the present invention.

[0064] Figure 12 1 is a perspective view showing a support frame and a column frame in a first state in one embodiment of the present invention.

[0065] Figure 13 It shows Figure 12 A perspective view of the process of the column frame rotating from the first state to the second state.

[0066] Figure 14 It shows Figure 12 A perspective view of the second state in which the column frame is fully rotated.

[0067] Figure 15 FIG. 1 is a diagram conceptually showing a first state of a column frame having an axis connection line DR inclined with respect to the longitudinal direction in one embodiment of the present invention.

[0068] Figure 16 It shows Figure 15 FIG. 1 shows a view of a column frame when the height of the support frame reaches a maximum during the process of rotating from a first state to a second state.

[0069] Figure 17 It shows Figure 16 Diagram of the process of the column frame rotating to the second state.

[0070] Figure 18 It shows Figure 15 FIG. 1 shows the column frame rotated to a second state.

[0071] Figure 19 1 is a diagram illustrating a support inclined portion and a column inclined portion of a foldable scaffolding device according to an embodiment of the present invention.

[0072] Figure 20 1 is a perspective view showing a linkage joint in a first state according to an embodiment of the present invention.

[0073] Figure 21 It shows Figure 20 A three-dimensional diagram of the process of the linkage joint converting to the second state.

[0074] Figure 22 It shows Figure 20 A three-dimensional diagram showing the linkage joint being switched to the second state.

[0075] Figure 23 1 is a diagram showing a first joint body and a second joint body of a gang joint in one embodiment of the present invention. DETAILED DESCRIPTION

[0076] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

[0077] However, the present invention can be implemented in various ways and is not limited to the embodiments described herein. In addition, in order to clearly illustrate the present invention, parts not related to the description are omitted from the drawings, and similar parts are marked with similar reference numerals throughout the specification.

[0078] In this specification, redundant description of the same components will be omitted.

[0079] In addition, in this specification, when a component is referred to as being "connected" or "connected" to another component, although it is possible that the component is directly connected or connected to the other component, it should be understood that other components may exist between the two components. Conversely, in this specification, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that no other components exist between the two components.

[0080] In addition, the terms used in this specification are used only to describe specific embodiments and are not intended to limit the present invention.

[0081] In addition, in this specification, an expression in the singular may include an expression in the plural unless the meaning is obviously different from the context.

[0082] In addition, in this specification, terms such as "including" or "having" are only used to specify the existence of features, numbers, steps, actions, constituent elements, parts or combinations thereof recorded in the specification, and should be understood as not excluding in advance the existence or additional possibility of one or more other features, numbers, steps, actions, constituent elements, parts or combinations thereof.

[0083] In addition, in this specification, the term "and / or" includes a combination of multiple items or any one of the multiple items. In this specification, "A or B" may include "A", "B", or "both A and B".

[0084] Figure 1 FIG. 3 shows a foldable scaffolding device 1 according to an embodiment of the present invention. Figure 2 The figure shows Figure 1 The folding process of the scaffolding device 1 looks like, Figure 3 The picture in the middle has Figure 1 The scaffolding device 1 looks like when it is completely folded.

[0085] A foldable scaffolding device 1 according to an embodiment of the present invention includes a support frame 100. The support frame 100 supports an object. Here, the term "support" includes not only support by direct contact with the object but also support of a load by indirect contact.

[0086] The objects arranged on the support frame 100 may include a worker, a work object, a work tool, etc. The worker may be located on the support frame 100 arranged in a work area and perform work on the work object.

[0087] The support frame 100 may be formed into a plate shape at least in part for stably supporting an object such as a worker, etc. Furthermore, the support frame 100 may be provided with a support plate on its upper surface in order to support the object.

[0088] The support frame 100 may extend in one direction to define its length, and the longitudinal direction D1 of the support frame 100 may be substantially parallel to the ground. However, as needed, the longitudinal direction D1 or the upper surface of the support frame 100 may be inclined at a predetermined angle to the ground.

[0089] The foldable scaffolding device 1 according to one embodiment of the present invention includes a column frame 200. The column frame 200 may be located below the support frame 100 and rotatably connected to the support frame 100.

[0090] The column frame 200 may support the support frame 100 from the ground, etc. The column frame 200 may separate the support frame 100 from the ground so that the support frame 100 is located at a predetermined height relative to the ground.

[0091] The column frame 200 may be disposed substantially below the support frame 100 and may be rotatably connected to the support frame 100 . The column frame 200 and the support frame 100 may be connected via a hinge portion 50 .

[0092] Unless otherwise mentioned, a plurality of objects rotatably connected in the present invention may be connected via a hinge portion 50. From the perspective of physical configuration and / or conceptual perspective for rotational motion, the hinge portion 50 may include a hinge axis.

[0093] In the present invention, when a plurality of components are described as being connected via a hinge axis, it can be understood that the plurality of components are rotatably connected via the hinge portion 50 including the hinge axis.

[0094] In one embodiment of the present invention, the column frame 200 is configured to be rotatable relative to the support frame 100 , and the height H of the support frame 100 relative to the ground changes with the rotation of the column frame 200 .

[0095] The column frame 200 may serve as a unit for supporting the support frame 100 and / or the load of an object on the support frame 100 from the ground or other structures located below the column frame 200 .

[0096] The column frame 200, i.e., the column frame 200, may include a plurality of split frames sequentially connected from the support frame 100. For example, the column frame 200 may be composed of a plurality of split frames, one of the plurality of split frames being connected to the support frame 100 and another of the plurality of split frames being connected to the one of the split frames, thereby forming a relationship in which the plurality of split frames are sequentially connected.

[0097] The plurality of split frames may be rotatably connected to one another. For example, the plurality of split frames may include a first split frame 201 and a second split frame 202. The first split frame 201 may be rotatably connected to the support frame 100, and the second split frame 202 may be rotatably connected to the first split frame 201. The height H of the support frame 100 may vary depending on the rotational state of the plurality of split frames.

[0098] On the other hand, in one embodiment of the present invention, the foldable scaffolding device 1 can have a first state and a second state. The first state can correspond to an unfolded state intentionally designed to stably support an object, and the second state can correspond to a folded state intentionally designed to minimize the space required for the foldable scaffolding device 1 for ease of operation or storage efficiency.

[0099] In the first state, the longitudinal directions D2 of the plurality of split frames face the ground. In the second state in which the plurality of split frames are rotated from the first state, the longitudinal directions D2 of the plurality of split frames may be parallel to the ground.

[0100] Thus, in the first state, the height H of the support frame 100 is higher than in the first state, and in the second state, the height H of the support frame 100 can be minimized. Furthermore, the column frame 200 of one embodiment of the present invention includes a plurality of rotatable split frames, so that in the second state, the space occupied by the column frame 200 in a direction parallel to the ground is reduced, thereby facilitating the folding of the column frame 200.

[0101] For example, a plurality of column frames 200 may be provided to stably support the support frame 100. In the relationship between the length of the support frame 100 and the length of the column frame 200, if the length of the column frame 200 reaches a certain level or above, the plurality of column frames 200 may contact each other during the process of rotating to reach the second state, that is, interference may occur.

[0102] Furthermore, when at least a portion of the column frames 200 is rotated away from the support frame 100 in order to eliminate the interference between the column frames 200 as described above, in the second state, the area consumed by the scaffolding device 1 on the ground increases due to the column frames 200, thereby reducing storage efficiency.

[0103] However, the column frame 200 of one embodiment of the present invention includes a plurality of split frames that can rotate with each other, so that when the column frame 200 is rotated to be parallel to the ground in the second state, the split frames can be stacked to divide the length of the column frame 200, thereby effectively suppressing the interference or area increase caused by the column frame 200.

[0104] On the other hand, the column frame 200 may include the aforementioned first split frame 201 and the second split frame 202. The first split frame 201 may be connected to the support frame 100 via the upper hinge shaft 251. The second split frame 202 may be connected to the first split frame 201 via a split hinge shaft 252 extending parallel to the upper hinge shaft 251.

[0105] Figure 7 1 shows a hinge portion 50 for rotatably connecting components in a foldable scaffolding device 1 according to an embodiment of the present invention. The hinge portion 50 may include a hinge bracket 52 coupled and fixed to a frame.

[0106] The hinge bracket 52 can be combined with the frame in various ways such as fitting, bolting, and hanging, and can be combined and fixed to a beam included in a certain frame.

[0107] The hinge portion 50 may be defined as including at least a pair of hinge brackets 52 and a hinge connection member 55 rotatably connecting the pair of hinge brackets 52. The hinge connection member 55 may be formed of a flexible material with a variable length, ie, bendable.

[0108] The hinge connection member 55 can be bent in a fixed length state to change its length direction. For example, the hinge connection member 55 can be formed of a steel fiber material or a carbon fiber material having excellent tensile strength and ensuring flexibility.

[0109] The hinge portion 50 may further include a hinge cover 57 for protecting the hinge connection member 55 coupled to the hinge bracket 52 from external influences and maintaining the coupled state. The hinge cover 57 may be coupled to the hinge bracket 52 in a manner that covers the portion of the hinge connection member 55 located on the hinge bracket 52.

[0110] Figure 8 and Figure 9 The middle figure shows a pair of beams or a pair of frames connected by the hinge portion 50 rotating relative to each other. Figure 8 The middle diagram shows the expanded state in which the pair of frames are rotated away from each other. Figure 9 FIG. 5 shows a folded state or a state in the process of folding in which the pair of frames are rotated to approach each other.

[0111] In the hinge portion 50 , a pair of hinge brackets 52 can be combined and fixed to different frames and positioned adjacent to or opposite to each other. The hinge brackets 52 connected by the hinge connection member 55 can rotate relative to each other.

[0112] The hinge axis of the hinge portion 50 can be determined by the structural interpretation of the hinge brackets 52 connected by the hinge connection member 55. For example, in one embodiment of the present invention, the hinge axis can extend transversely to the direction in which the pair of hinge brackets 52 are arranged side by side or perpendicular to the direction in which the pair of hinge brackets 52 are arranged side by side.

[0113] However, in the present invention, the structure of the hinge portion 50 for rotatably connecting the frames is not necessarily limited to the above, and hinge portions 50 having various structures that can rotatably connect a plurality of frames can be applied.

[0114] on the other hand, Figures 4 to 6 The middle figure shows the foldable scaffold device 1 as viewed from the front, after switching from the first state to the second state. Figure 4 The middle diagram shows a scaffolding device 1 in a first state, which is designed to stably support an object. Figure 5 The middle figure shows the column frame 200 rotating in order to convert the scaffolding device 1 from the first state to the second state. Figure 6 The middle diagram shows the scaffold apparatus 1 in the second state, which is designed to have the smallest volume for storage and the like.

[0115] As described above, the first segment frame 201 may be connected to the support frame 100 via the upper hinge shaft 251. The upper hinge shaft 251 may be understood as an object that rotatably connects the column frame 200 and the support frame 100.

[0116] One end of the first split frame 201 can be connected to the support frame 100 via an upper hinge shaft 251, and the other end can be connected to the second split frame 202 via a split hinge shaft 252. That is, the second split frame 202 can be connected to the first split frame 201 via the split hinge shaft 252.

[0117] The first split frame 201 and the second split frame 202 are rotatable so that their longitudinal directions D2 face the ground in the first state and are parallel to the ground in the second state.

[0118] In the first state, the length direction D2 of the first split frame 201 and the second split frame 202 can be toward the ground or perpendicular to the ground. Therefore, the length of the column frame 200 can be understood as the sum of the lengths of the first split frame 201 and the second split frame 202.

[0119] The first split frame 201 and the second split frame 202 may be arranged side by side with their longitudinal directions D2 parallel to each other in the first state. Each of the first split frame 201 and the second split frame 202 may include the plurality of column parts and the column section 230 .

[0120] In one embodiment of the present invention, a frame may include at least one component, and a component may include at least one beam. Detailed description of the plurality of column components and the column section 230 will be described later.

[0121] On the other hand, in the second state, the split frame may be arranged so as not to extend beyond the ends of the support frame 100 based on the longitudinal direction D1 of the support frame 100 . Figure 6 The column frame 200 , that is, a plurality of divided frames, is shown folded between both ends of the support frame 100 .

[0122] Specifically, in one embodiment of the present invention, the column frame 200 may rotate in a manner such that the plurality of division frames do not extend beyond both ends of the support frame 100 in the length direction D1 during the transition from the first state to the second state.

[0123] For example, in one embodiment of the present invention, a plurality of column frames 200 may be provided and disposed on the outer side of the support frame 100. The column frames 200 may be disposed on both ends of the support frame 100 based on the longitudinal direction D1 of the support frame 100.

[0124] During the transition from the first state to the second state, the first split frame 201 , one end of which is connected to the support frame 100 via the upper hinge shaft 251 , may rotate with the other end facing the center of the support frame 100 .

[0125] The second split frame 202, one end of which is connected to the first split frame 201 via the split hinge shaft 252, can rotate so that the other end is away from the center of the support frame 100. Thus, the column frame 200 can rotate so that the split hinge shaft 252 moves toward the support frame 100 during the transition from the first state to the second state.

[0126] In one embodiment of the present invention, an adjacent pair of split frames among the multiple split frames of the column frame 200 can be connected in a rotatable manner through a split hinge shaft 252, and the multiple split frames can be rotated in the first state in such a manner that the split hinge shaft 252 moves toward the support frame 100 and converted to the second state.

[0127] During the transition from the first state to the second state, the split hinge shaft 252 may move closer to the center of the support frame 100 .

[0128] One end of the first split frame 201 is connected to the support frame 100 in a rotatable manner, and one end of the second split frame 202 is connected to the other end of the first split frame 201 in a rotatable manner. During the process of converting from the first state to the second state, the other end of the first split frame 201 and the one end of the second split frame 202 can be rotated in a manner close to the support frame 100.

[0129] On the other hand, the lengths of the first split frame 201 and the second split frame 202 can be substantially the same. Furthermore, the length of the first split frame 201 can be greater than the length of the second split frame 202. Thus, the second split frame 202 extending from the other end of the first split frame 201 does not extend beyond both ends of the support frame 100 in the second state.

[0130] In one embodiment of the present invention, the column frame 200 can be transformed from a first state to a second state to minimize the height of the support frame 100. In the second state, the column frame 200 or multiple divided frames are folded in a manner that does not exceed between the two ends of the support frame 100, that is, does not increase the required area on the ground based on the longitudinal direction D1 of the support frame 100. Therefore, the scaffolding device 1 does not need to ensure additional storage space based on the longitudinal direction D1 of the support frame 100 during the process of transforming from the first state to the second state, which is advantageous.

[0131] The split frames, which have been transformed into the second state by rotating the longitudinal direction D2 to be parallel to the ground, can be stacked below the support frame 100. The split frames of the column frame 200 for supporting the support frame 100 relative to the ground, etc., are rotated to be parallel to the ground, thereby specifically achieving the designed minimum height H3 of the support frame 100.

[0132] On the other hand, the foldable scaffolding device 1 according to one embodiment of the present invention may include a bottom frame 300. The bottom frame 300 may be disposed below the column frame 200. The bottom frame 300 may be located on the ground or on another structure located on the ground.

[0133] The bottom frame 300 can be understood as the final component of the foldable scaffolding apparatus 1 according to one embodiment of the present invention that receives and transmits loads. The load of an object can be transmitted to the bottom frame 300 via the support frame 100 and the column frame 200. The bottom frame 300 can be supported by the ground or a structure on the ground.

[0134] The column frame 200 may be rotatably connected to the support frame 100 via an upper hinge shaft 251 and may be rotatably connected to the bottom frame 300 via a lower hinge shaft 253 .

[0135] The plurality of split frames may include a first split frame 201 connected to the support frame 100 via the upper hinge shaft 251, and a second split frame 202 connected to the first split frame 201 via a split hinge shaft 252 and connected to the bottom frame 300 via the lower hinge shaft 253. The second split frame 202 may be rotatably connected to the bottom frame 300 via the lower hinge shaft 253.

[0136] The foldable scaffolding device 1 according to one embodiment of the present invention may be symmetrical in top and bottom. For example, the scaffolding device 1 may have a vertically symmetrical structure centered around the split hinge shaft 252 provided between the first split frame 201 and the second split frame 202 of the column frame 200 .

[0137] The support frame 100 and the bottom frame 300 can have substantially the same structure and can be inverted vertically about the split hinge axis 252. In other words, the bottom frame 300 can be inverted and placed on the ground. The pair of column frames 200 disposed at either end of the support frame 100 can be rotatably connected to the bottom frame 300.

[0138] The connection structure between the first split frame 201 and the support frame 100 can be the same as the connection structure between the second split frame 202 and the bottom frame 300. The upper hinge axis 251 described above can correspond to the lower hinge axis 253. As a result, the folding structure specifically implemented by the first split frame 201 and the support frame 100 can be the same as the folding structure specifically implemented by the second split frame 202 and the bottom frame 300.

[0139] Furthermore, the foldable scaffolding apparatus 1 according to one embodiment of the present invention may be symmetrical on one side and the other side relative to the longitudinal direction D1 of the support frame 100. For example, the scaffolding apparatus 1 may have a bilaterally symmetrical structure relative to an imaginary line passing through the center of the support frame 100 and perpendicular to the ground.

[0140] The plurality of column frames 200 may have the same structure and may be inverted left and right with respect to an imaginary line passing through the center of the support frame 100 .

[0141] The connection structure of one of the plurality of column frames 200 to the support frame 100 and the bottom frame can be the same as the connection structure of another of the plurality of column frames 200 to the support frame 100. Therefore, the folding structure specifically implemented by one of the column frames 200 can be the same as the folding structure specifically implemented by another column frame 200.

[0142] In the first state, the length direction D2 of the column frame 200 may be substantially perpendicular to the ground, and the column frame 200 may support the support frame 100 relative to the bottom frame 300 between the bottom frame 300 and the support frame 100 .

[0143] The column frame 200 may define a column section 230 parallel to the ground, and may be connected with the support frame 100 and the bottom frame 300 in units of surfaces to form a stable support structure.

[0144] In the second state in which the first split frame 201 rotates relative to the supporting frame 100 and the second split frame 202 rotates relative to the bottom frame 300 from the above-mentioned first state, the length directions D2 of the first split frame 201 and the second split frame 202 can each be parallel to the ground, and can be parallel to the length direction D1 of the supporting frame 100, and can be parallel to the length direction of the bottom frame 300.

[0145] During the transition from the first state to the second state, the height H of the support frame 100 decreases, and the second state height can be the minimum height H3 allowed by the design. In the second state, the multiple split frames can be stored between the support frame 100 and the bottom frame 300, and the distance between the multiple split hinge shafts 252 provided in the multiple column frames 200 is minimized.

[0146] On the other hand, the support frame 100 may include a space forming portion 140 extending toward the ground. The support frame 100 may include a main support member 111 defining an upper surface on which an object is seated, and the space forming portion 140 may extend downward from the main support member 111.

[0147] The bottom frame 300 may include the above-mentioned space forming portion 140 corresponding to the supporting frame 100. In this case, the supporting frame 100 and the space forming portion 140 of the bottom frame 300 may be positioned perpendicular to the ground.

[0148] Therefore, in the second state, the space forming portion 140 of the support frame 100 is placed above the space forming portion 140 of the bottom frame 300 , thereby ensuring a minimum height H3 for accommodating the column frame 200 between the support frame 100 and the bottom frame 300 .

[0149] That is, one embodiment of the present invention can ensure that the split frames of the rotating column frame 200 are stored in the storage space between the support frame 100 and the base frame 300, and can stably realize the folded state with the minimum height. The specific structure of the support frame 100 related to the space forming portion 140 will be described later.

[0150] On the other hand, in one embodiment of the present invention, the first split frame 201 may be formed such that the axis connecting line DR connecting the upper hinge axis 251 and the split hinge axis 252 is inclined relative to the length direction D2 of the first split frame 201 .

[0151] Therefore, the foldable scaffolding apparatus 1 according to one embodiment of the present invention may have an increasing section in which the height H of the supporting frame 100 increases during the process of being transformed from the first state to the second state.

[0152] To illustrate the above increase range, please refer to Figures 15 to 18 . Figures 15 to 18 2 shows a simplified frame structure of a foldable scaffolding apparatus 1 according to an embodiment of the present invention. In the frame structure, the column frame 200 is expressed as an undivided single frame or beam.

[0153] Figures 15 to 18 FIG. 3 illustrates a process in which a frame structure corresponding to a foldable scaffolding device 1 according to an embodiment of the present invention is transformed from a first state to a second state.

[0154] First reference Figure 15 In the frame structure, the column frame 200 may be connected to the support frame 100 via the upper hinge shaft 251 and to the bottom frame 300 via the lower hinge shaft 253. In the first state, the longitudinal direction D2 of the column frame 200 may be substantially perpendicular to the ground.

[0155] The column frame 200 supports the load by contacting the support frame 100 and the bottom frame 300 in a surface unit, thereby realizing a stable support structure.

[0156] The upper hinge shaft 251 of the column frame 200 may be positioned so as to be offset from an imaginary line extending perpendicularly to the ground from the lower hinge shaft 253. Thus, an imaginary axis connection line DR extending perpendicularly to the upper hinge shaft 251 and the lower hinge shaft 253, respectively, may be defined as being inclined relative to the longitudinal direction D2 of the column frame 200.

[0157] Figure 15 The frame structure shown in FIG corresponds to a first state in which the frame structure is deployed to support an object. The figure shows a height H of the support frame 100 corresponding to a height H1 of the first state.

[0158] on the other hand, Figure 16 The figure shows a column frame 200. Figure 15 The support frame 100 is rotated in the frame structure so that the support frame 100 reaches the maximum height H2 allowed in the design.

[0159] Specifically, in one embodiment of the present invention, the column frame 200 may rotate from a first state to a second state, and the rotation process from the first state to the second state may include an increasing interval and a decreasing interval.

[0160] The increasing interval may be defined as an interval in which the height H of the support frame 100 increases as the column frame 200 rotates. The increasing interval may be defined as a rotation interval from the first state to a state in which the axis connecting line DR of the column frame 200 is perpendicular to the ground.

[0161] The axis connecting line DR may rotate around the upper hinge axis 251 or the lower hinge axis 253 during the rotation of the column frame 200. The upper hinge axis 251 and the lower hinge axis 253 may correspond to the contact points of the column frame 200, the support frame 100, and the bottom frame 300.

[0162] In the first state for supporting an object as in the first state, the spacing distance between the support frame 100 and the bottom frame 300 may correspond to the length of the column frame 200, but if the column frame 200 is rotated from the first state, the above-mentioned axis connection line DR corresponding to the connection line between the support frame 100 and the bottom frame 300 will gradually rotate perpendicularly to the ground.

[0163] As described above, in the first state, the axis connection line DR may extend obliquely relative to the ground, and the length direction D2 of the column frame 200 is perpendicular to the ground, so the length of the axis connection line DR is longer than the length of the column frame 200 .

[0164] In the first state, the upper end of the column frame 200 and the upper end of the axis connection line DR will be at the same height, so it can be understood that the separation distance between the bottom frame 300 and the support frame 100, that is, the height of the support frame 100 corresponds to the length of the column frame 200, but if the column frame 200 starts to rotate from the first state, the axis connection line DR, which is defined as being longer than the length of the column frame 200, gradually rotates perpendicular to the ground, so the height of the support frame 100 can change corresponding to the height of the upper end of the axis connection line DR.

[0165] Therefore, in the increasing interval in which the column frame 200 rotates from the first state so that the axis connection line DR gradually becomes perpendicular to the ground, a phenomenon occurs in which the height H of the support frame 100 gradually increases.

[0166] exist Figure 16In the state at the end of the increase interval shown in FIG, the distance between the bottom frame 300 and the support frame 100 can correspond to the length of the axis connection line DR. The height H of the support frame 100 can be higher than the height H1 in the first state. The height of the support frame 100 can be the maximum height H2 allowed by the design.

[0167] Based on the rotation process from the first state to the second state, the shaft connection line DR can be tilted from the lower hinge axis 253 to the opposite side of the rotation direction relative to the length direction D2 of the column frame 200, so as to increase the height H of the support frame 100 in the increasing interval by means of the length of the shaft connection line DR.

[0168] In addition, the support frame 100 extends in the first direction X. When the support frame 100 moves along the first direction X and its height decreases during the transition from the first state to the second state, the upper hinge shaft 251 is configured to be closer to the center of the support frame 100 than the lower hinge shaft 253 based on the first direction X.

[0169] One embodiment of the present invention increases the rotation resistance of the column frame 200 to the laterally pressurized state by increasing the interval from the first state, thereby improving the structure maintaining performance.

[0170] For example, the support frame 100 passes through an increasing interval in which the height H increases during the transition from the first state to the second state. Thus, the load of the object arranged on the support frame 100 acts as a resistance force to the rotation of the column frame 200 to the second state, that is, as a structural retaining force.

[0171] Therefore, even if a lateral load is inadvertently generated during operation on the support frame 100 in the state unfolded to the first state, the load of the object acts as a resistance to rotation, thereby effectively preventing accidents caused by the frame structure being inadvertently converted to the second state.

[0172] Furthermore, even without a separate stopper or fixing structure for holding the column frame 200 and the like in the first state, the first state can be held, and thus unnecessary addition of a structure can be omitted.

[0173] Figure 17 The picture in the middle shows Figure 16 The end point of the increase interval shown in the figure transitions to the second state of the frame structure.

[0174] The rotation of the column frame 200 after passing the end of the increase interval can be gradually reduced without increasing the height of the upper end of the axis connection line DR, that is, the upper hinge axis 251. During this process, the load of the support frame 100 and the like can act as a rotational force on the column frame 200, guiding the transition to the second state.

[0175] on the other hand, Figure 18 FIG. 2 shows a frame structure in which the column frame 200 is completely rotated from the first state to the second state.

[0176] In the second state, the length directions of the bottom frame 300, the column frame 200 and the support frame 100 can be parallel to each other and each can be parallel to the ground. That is, the height H of the support frame 100 in the second state can be the minimum height H3 allowed in design.

[0177] Figures 15 to 18 The frame structure shown in FIG. 2 corresponds to a single frame type of the column frame 200 that does not include a split frame, but the above-mentioned features of increasing and decreasing intervals can also be similarly applied to an embodiment of the present invention that includes a split frame.

[0178] For example, in the foldable scaffolding device 1 according to one embodiment of the present invention, the axis connection line DR of each divided frame can be formed to be inclined relative to the respective longitudinal direction D2. Figures 4 to 6 The axis connection line DR defined in the split frame is shown in FIG.

[0179] Re-reference Figures 4 to 6 The first split frame 201 may have an axis connection line DR connecting the upper hinge axis 251 and the split hinge axis 252 . The axis connection line DR of the first split frame 201 may extend obliquely with respect to the longitudinal direction D2 of the first split frame 201 .

[0180] The second split frame 202 may have a shaft connection line DR connecting the split hinge shaft 252 and the lower hinge shaft 253 . The shaft connection line DR of the second split frame 202 may extend obliquely with respect to a longitudinal direction D2 of the second split frame 202 .

[0181] Thus, in the aforementioned increasing interval, the first split frame 201 can rotate relative to the second split frame 202 and the axis connection line DR can gradually rotate perpendicular to the ground, and the second split frame 202 can rotate relative to the bottom frame 300 and the axis connection line DR can gradually rotate perpendicular to the ground.

[0182] At the end point of the increased interval, the axial connection line DR of the first split frame 201 and the axial connection line DR of the second split frame 202 can be located on the same line perpendicular to the ground. In this state, the separation distance between the bottom frame 300 and the supporting frame 100, that is, the height H of the supporting frame 100 can be a deliberately designed maximum height H2.

[0183] After the end of the above-mentioned increase interval, the rotation of the first split frame 201 and the second split frame 202 will increase the inclination angle between the respective axis connection line DR and the ground, so that the height H of the support frame 100 will be reduced. In the second state, the height H of the support frame 100 can become the deliberately designed minimum height H3.

[0184] The support frame 100 extends in a first direction X parallel to the ground, and the upper hinge shaft 251 is disposed closer to the center of the support frame 100 than the split hinge shaft 252 based on the first direction X.

[0185] However, as will be described below, one embodiment of the present invention may cause deformation such that the areas of the support section 130 and the column section 230 continue to decrease as the column frame 200 begins to rotate during the transition from the first state to the second state.

[0186] Since the height of the above-mentioned support section 130 and column section 230 itself is reduced, the effect of reducing the height H of the support frame 100 is also produced in the above-mentioned increase interval. However, due to the relative size of the length of the below-mentioned support linkage component and column linkage component and the length of the shaft connection line DR, the increase in the height of the support frame 100 brought about by the rotation of the shaft connection line DR is greater than the decrease in the height of the support frame 100 brought about by the rotation of the above-mentioned support linkage component and column linkage component, so that the phenomenon of increasing the height of the support frame 100 in the above-mentioned increase interval will also occur.

[0187] on the other hand, Figure 10 Detailed description of the drawings shows a supporting frame 100 of a foldable scaffolding apparatus 1 according to an embodiment of the present invention.

[0188] In one embodiment of the present invention, the support frame 100 may include a plurality of support components. As previously mentioned, in one embodiment of the present invention, the frame may include at least one component, and the component may include at least one beam.

[0189] The plurality of support members may be rotatably connected via different support hinge shafts 120. The plurality of support members may be connected via the plurality of support hinge shafts 120.

[0190] Therefore, in one embodiment of the present invention, multiple components provided on one frame can be further distinguished based on the hinge portion 50. That is, the multiple components can be further distinguished based on whether they have a mutually rotatable connection relationship.

[0191] Each of the plurality of support members may extend along a first direction X parallel to the ground. That is, the plurality of support members may extend parallel to each other.

[0192] The plurality of support members may include a main support member 111 and a linkage support member 112 rotatably coupled to the main support member 111 and rotatably linked to the column frame 200 .

[0193] The main support member 111 may serve as a rotation reference for the interlocking support member 112 . The main support member 111 may not have a rotational displacement during the transition from the first state to the second state.

[0194] The main support member 111 may define the upper surface of the support frame 100 and the scaffolding device 1 and may define a surface for supporting an object. Figure 10 The middle figure shows a main support member 111 having a quadrangular cross-sectional shape formed by four beams, but the cross-sectional shape of the main support member 111 and the number of beams may be varied.

[0195] The linkage support member 112 can be rotatably connected to the main support member 111. The linkage support member 112 can be connected to the main support member 111 via a support hinge shaft 120. The support hinge shaft 120 can extend in various directions. For example, the support hinge shaft 120 can extend in the first direction X together with the main support member 111 and the linkage support member 112.

[0196] The linkage support member 112 can be linked with the column frame 200 to form a rotational displacement. For example, when the column frame 200 is converted to the first state and the second state, the linkage support member 112 can be linked with the rotation of the first segment frame 201 centered around the upper hinge shaft 251 and rotate around the support hinge shaft 120.

[0197] The linkage support member 112 can be linked to the column frame 200 in a variety of ways. For example, the linkage support member 112 can be rotated by physical interference with the column frame 200 or by a linkage joint 400 as described below.

[0198] In one embodiment of the present invention, the support frame 100 may include at least one linkage support member 112. If the support frame 100 includes multiple linkage support members 112, at least one of the multiple linkage support members 112 may include a support inclined portion 115 for coupling with the linkage joint 400. A detailed description of the support inclined portion 115 and the linkage joint 400 will be provided later.

[0199] The operator can guide the conversion of the foldable scaffolding device 1 according to one embodiment of the present invention through the linkage support component 112 .

[0200] Specifically, as described above, in one embodiment of the present invention, the height H of the support frame 100 increases in a portion of the process in which the column frame 200 rotates from the first state to the second state.

[0201] In the rotation section where the height H of the support frame 100 increases, the load of the object placed on the support frame 100 and / or the support frame 100 itself may act as resistance to the increase in the height of the support frame 100 or the rotation of the column frame 200 .

[0202] That is, one embodiment of the present invention may require intervention of an external force for offsetting the effects of the object and the load of the support frame 100 during the transition from the first state to the second state.

[0203] At this time, the operator directly lifts the support frame 100 or provides a rotational force to the column frame 200 or to the linkage support member 112 rotating together with the column frame 200, thereby performing the process of converting from the first state to the second state.

[0204] In one embodiment of the present invention, an operator holds the linkage support member 112 provided on the support frame 100 and rotates it, thereby conveniently performing the increase section of the height H in the process of switching from the first state to the second state.

[0205] The above-mentioned linkage support component 112 can be rotatably arranged on both sides of the above-mentioned support component based on the above-mentioned second direction Y. The above-mentioned multiple support components can include an inner support component 113 opposite to the above-mentioned main support component 111 and connected to the above-mentioned linkage support component 112 in a rotatable manner.

[0206] The main support component 111 and the linkage support component 112 extend along a first direction X parallel to the ground. The linkage support component 112 may be connected to the main support component 111 via a support hinge shaft 120 extending along the first direction X.

[0207] Specifically, the plurality of support members included in the support frame 100 , ie, the main support member 111 , the linkage support member 112 , and the inner support member 113 , may extend together in a first direction X parallel to the ground.

[0208] As for the plurality of supporting members, their extending directions may be parallel to the first direction X not only in the first state but also in the second state.

[0209] In the present invention, the second direction Y may be defined as a direction parallel to the ground but substantially perpendicular to the first direction X. That is, the first direction X and the second direction Y may be defined as being perpendicular to each other on a plane parallel to the ground.

[0210] The linkage support members 112 may be provided in pair and disposed at both ends of the main support member 111 in the second direction Y. The pair of linkage support members 112 may be rotatably connected to the two ends of the main support member 111 via different support hinge shafts 120 .

[0211] On the other hand, the inner support member 113 may be disposed opposite to the main support member 111. One end of the linkage support member 112 may be connected to the main support member 111, and the other end may be connected to the inner support member 113.

[0212] The inner support member 113 may be rotatably connected to the linkage support member 112. That is, the support frame 100 may include a plurality of support hinge shafts 120, and the inner support member 113 may be connected to the linkage support member 112 via any one of the plurality of support hinge shafts 120.

[0213] The support frame 100 may include a plurality of support sections 130 whose sides are respectively defined by the plurality of support components. The support section 130 may include a plurality of sides, each of which may be defined by a different support component.

[0214] For example, Figure 10 As shown, the support section 130 can be a surface perpendicular to the ground, the upper side of which can be defined by the main support component 111, the two side sides can be defined by a pair of linkage support components 112, and the lower side can be defined by the inner support component 113.

[0215] The aforementioned space forming portion 140 may be provided at both sides of the support frame 100 in the first direction X. The space forming portion 140 may extend from both ends of the support frame 100 in the first direction X toward the bottom frame 300 .

[0216] The space forming portion 140 provided on the main support member 111 can ensure space for accommodating the interlocking support member 112 , the inner support member 113 and the first split frame 201 in the second state, based on the direction Z perpendicular to the ground.

[0217] on the other hand, Figure 11 FIG. 2 shows a column frame 200 of a foldable scaffolding device 1 according to an embodiment of the present invention. Figure 11 The figure shows the first divided frame 201 of the column frame 200, but the structure of the second divided frame 202 is the same.

[0218] In one embodiment of the present invention, the column frame 200 may include a plurality of column components. In the case where the column frame 200 includes a first split frame 201 and a second split frame 202, each of the first split frame 201 and the second split frame 202 may include the plurality of column components.

[0219] The plurality of column members may be rotatably connected via different column hinge shafts 220. The plurality of column members may be rotatably connected via the plurality of column hinge shafts 220.

[0220] Each of the plurality of column members can extend in a direction Z perpendicular to the ground in a first state, and can extend in a first direction X in a second state. That is, the plurality of column members can extend parallel to each other, and the column frame 200 can rotate about the upper hinge axis 251 such that the length directions of the plurality of column members are parallel to the first direction X or perpendicular to the ground.

[0221] The plurality of column components may include a main column component 211 and a linkage column component 212 rotatably coupled to the main column component 211 and rotatably linked to the linkage support component 112 .

[0222] For example, the rotation of the column frame 200 around the upper hinge shaft 251 , the rotation of the linkage column member 212 around the column hinge shaft 220 , and the rotation of the linkage support member 112 around the support hinge shaft 120 may be generated in conjunction with each other.

[0223] The main column member 211 can serve as a rotation reference for the interlocking column member 212. The main column member 211 can define at least a portion of the outer surface of the column frame 200 and can be part of a load transfer path between the object and the support frame 100.

[0224] Although Figure 11 The middle figure shows a main column member 211 having a quadrangular cross-sectional shape formed by four beams, but the cross-sectional shape of the main column member 211 and the number of beams may be varied.

[0225] The linkage column component 212 can be rotatably connected to the main column component 211. The linkage column component 212 can be connected to the main column component 211 via a column hinge shaft 220. The column hinge shaft 220 can extend in various directions. For example, the column hinge shaft 220 can extend parallel to the main column component 211 and the linkage column component 212.

[0226] The linkage column component 212 can be linked with the linkage support component 112 to form a rotational displacement relative to the column hinge shaft 220. For example, during the process of the column frame 200 switching between the first state and the second state, the first segmented frame 201 can rotate around the upper hinge shaft 251, the linkage support component 112 can be linked with the rotation of the first segmented frame 201 and rotate around the support hinge shaft 120, and the linkage column component 212 can be linked with the rotation of the linkage support component 112 and rotate around the column hinge shaft 220.

[0227] The linkage column component 212 can be linked to the linkage support component 112 in a variety of ways. For example, the linkage column component 212 can be rotated by physically interfering with the linkage support component 112 or by the aforementioned linkage joint 400. The linkage column component 212 can include a column tilt portion 215 for coupling with the linkage joint 400.

[0228] The linkage column components 212 may be provided in pair and disposed at both ends of the main column component 211 in the second direction Y. The pair of linkage column components 212 may be rotatably connected to the two ends of the main column component 211 via different column hinge shafts 220 .

[0229] On the other hand, the inner column component 213 may be disposed opposite to the main column component 211. One end of the linkage column component 212 may be connected to the main column component 211, and the other end may be connected to the inner column component 213.

[0230] The inner column component 213 may be rotatably connected to the linkage column component 212. That is, the column frame 200 may include a plurality of column hinge shafts 220, and the inner column component 213 may be connected to the linkage column component 212 via any one of the plurality of column hinge shafts 220.

[0231] The column frame 200, the first segmented frame 201, or the second segmented frame 202 may include a column section 230 whose sides are defined by the column components. The column section 230 may include a plurality of sides, each of which may be defined by a different column component.

[0232] For example, Figure 11As shown, in the first state, the column section 230 may be a surface parallel to the ground, and each side may be defined by the main column component 211 , a pair of linkage column components 212 , and the inner column component 213 .

[0233] on the other hand, Figures 12 to 14 4 , the support frame 100 and the first split frame 201 of the column frame 200 are shown in FIG. 4 , which are transformed from a first state to a second state as the support section 130 and the column section 230 are deformed in shape.

[0234] Figure 12 , there is shown a support frame 100 and a column frame 200 having a substantially rectangular support cross section 130 and a column cross section 230 in a first state, Figure 13 2 shows the support frame 100 and the column frame 200 rotated from the first state and the support section 130 and the column section 230 deformed into a substantially parallelogram shape. Figure 14 The figure shows the support frame 100 and the column frame 200 corresponding to the second state, which have the support cross section 130 and the column cross section 230 deformed so that each side extends in one direction.

[0235] like Figures 12 to 14 As shown, in one embodiment of the present invention, the support frame 100 and the column frame 200 can cause the above-mentioned column frame 200 to rotate around the upper hinge shaft 251 while deforming the shapes of the support section 130 and the column section 230, so that the height of the above-mentioned support section 130 and the column section 230 in the second state becomes the minimum.

[0236] Specifically, in one embodiment of the present invention, the support frame 100 may include a plurality of support components, and the plurality of support components may include a main support component 111 and a linkage support component 112 rotatably connected to the main support component 111 .

[0237] One end of the linkage support member 112 may be connected to the main support member 111 via a support hinge shaft 120. The linkage support member 112 rotates around the support hinge shaft 120, so that the other end may be located below the support hinge shaft 120 in a first state, and the other end may be located in a second direction Y relative to the support hinge shaft 120 in a second state.

[0238] That is, the linkage support member 112 can be positioned below the main support member 111 in the first state, and can be positioned parallel to the ground relative to the main support member 111 in the second state. A surface defined by the plurality of beams included in the linkage support member 112 can be perpendicular to the ground in the first state, and can be parallel to the ground in the second state.

[0239] The interlocking support member 112 may be located below the main support member 111 in the first state, and may be aligned with the interlocking support member 112 in a direction parallel to the ground in the second state.

[0240] On the other hand, in the second state, a portion of the column frame 200 may protrude from the support frame 100 in a direction transverse to the longitudinal direction D1 of the support frame 100. That is, the column frame 200 may change the shape of the column cross section 230 so that a portion thereof protrudes from the support frame 100 along the second direction Y.

[0241] That is, in the second state, a portion of each of the plurality of divided frames may protrude beyond the main support member 111 in a direction transverse to the longitudinal direction D1 of the support frame 100 .

[0242] During the transition from the first state to the second state, at least a portion of the column frame 200 together with the linkage support member 112 may protrude further than the main support member 111 in a direction parallel to the ground.

[0243] The linkage column component 212 may be located in the first direction X relative to the main column component 211 in the first state, and may be located in the second direction Y relative to the main column component 211 in the second state.

[0244] In the second state, the linkage support component 112 is located in a direction parallel to the ground relative to the main support component 111, and the linkage column component 212 is located in a direction parallel to the ground relative to the main column component 211, so that the height of the top end of the support frame 100 relative to the ground can be formed to be the lowest.

[0245] The rotational relationship between the support member and the column member that changes the shape of the support section 130 and the column section 230 can be understood as the same as described above. Figures 15 to 18 The folding and unfolding relationship of the frame structure is the same.

[0246] Specifically, in Figures 15 to 18 In the frame structure shown in FIG, the upper frame may correspond to the main support member 111 or the main column member 211. The two side frames may correspond to the linkage support member 112 or the linkage column member 212. The lower frame may correspond to the inner support member 113 or the inner column member 213.

[0247] In the first state, the pair of interlocking support members 112 may be in a state of extending substantially perpendicularly relative to the main support member 111 or the inner support member 113. During the transition from the first state to the second state, the interlocking support members 112 rotate relative to the inner support member 113, thereby changing the shape of the support cross section 130 so that the substantially quadrilateral cross section has a parallelogram shape.

[0248] During the deformation of the support cross section 130 , the area of ​​the support cross section 130 may decrease in conjunction with the column frame 200 during the transformation from the first state to the second state.

[0249] One of the sides of the support section 130 may be defined by the linkage support member 112. That is, the linkage support member 112 rotates in conjunction with the rotation of the column frame 200, thereby being deformed so that the height of the support section 130 is reduced.

[0250] The motion performed by the multiple rotating sides of the support section 130 may be a four-bar linkage motion. In one embodiment of the present invention, the four-bar linkage motion refers to a motion in which, when the lengths of the opposing sides are the same and one side rotates relative to the adjacent side, one pair of sides rotates in a manner that changes their lengths, while the remaining pair of sides does not change in length and the distance between them decreases.

[0251] Figures 15 to 18 The figure shows the process of reducing the height of a rectangle with four sides through a four-bar linkage.

[0252] Therefore, during the transition from the first state to the second state, the support section 130 may be deformed by a four-bar linkage so that a pair of opposite sides of the plurality of sides are brought closer together in a parallel state.

[0253] The pair of sides in the support cross section 130 that rotate may correspond to the linkage support component 112 , and the pair of sides in a constant length direction may correspond to the main support component 111 and the inner support component 113 .

[0254] In this regard, when a pair of linkage support members 112 are provided as described above, Figures 15 to 18 As shown, the pair of linkage support members 112 may have the same rotation direction as each other.

[0255] That is, in the second state, one of the pair of interlocking support members 112 may be positioned to protrude from the main support member 111 in the second direction Y, and the remaining interlocking support member 112 may be disposed above the main support member 111 .

[0256] This deformation of the support section 130 can also be applied to the column section 230. For example, Figures 15 to 18 The upper frame of the frame structure shown in the figure may correspond to the inner column component 213 , the two side frames may correspond to the linkage column component 212 , and the lower frame may correspond to the main column component 211 .

[0257] Therefore, during the transition from the first state to the second state, the column section 230 can deform in a manner that reduces its area, similar to the support section 130. The plurality of column members are rotatably connected to one another, and the column section 230 can change shape through rotation between the plurality of column members, and also through rotation of the linkage column member 212 relative to the main column member 211.

[0258] The column cross section 230 may change in a manner such that the distance between a pair of opposing sides among the plurality of sides decreases during the transition from the first state to the second state. For example, the column cross section 230 may change in a manner such that the distance between the inner column component 213 and the main column component 211 decreases.

[0259] In the second state, the pair of sides can be arranged vertically relative to the ground. Specifically, in the second state, the main column member 211 and the inner column member 213 can be arranged in a direction Z perpendicular to the ground, with the distance between them reduced. In other words, the column frame 200 can be deformed in the second state such that the height of the column cross section 230 is reduced.

[0260] Similar to the support section 130 , during the transition from the first state to the second state, the column section 230 may be deformed such that a pair of sides among the plurality of sides are brought closer together through a four-bar linkage motion.

[0261] In the column cross section 230 , the pair of sides that rotate may correspond to the linkage column component 212 , and the pair of sides that maintain the length direction may correspond to the inner column component 213 and the main column component 211 .

[0262] That is, in one embodiment of the present invention, one of the main column component 211 and the inner column component 213 can be connected to the upper hinge shaft 251, and the linkage column component 212 can rotate relative to the one of the column components to generate the four-bar motion.

[0263] In this regard, when a pair of linkage column members 212 are provided as described above, the pair of linkage column members 212 may be configured as follows. Figures 15 to 18 As shown, they can have the same direction of rotation as each other.

[0264] That is, in the second state, one of the pair of interlocking column components 212 may be positioned to protrude from the main column component 211 in the second direction Y, and the remaining interlocking column component 212 may be disposed above the main column component 211 .

[0265] During the transition from the first state to the second state, the column frame 200 rotates around the upper hinge shaft 251 and the linkage column member 212 rotates around the column hinge shaft 220 , thereby reducing the area of ​​the column cross section 230 .

[0266] on the other hand, Figure 19 The figure shows the support inclined portion 115 of the support frame 100 and the column inclined portion 215 of the column frame 200. Figure 20 The figure shows a linkage joint 400 combined with the support inclined portion 115 and the column inclined portion 215.

[0267] In one embodiment of the present invention, the linkage support member 112 and the column frame 200 may be connected via a linkage joint 400. The linkage joint 400 may rotatably connect the linkage support member 112 and the column frame 200 to allow the linkage support member 112 to be linked to the column frame 200.

[0268] In the linkage joint 400 , the joint axis 401 serving as the rotation center between the linkage support member 112 and the column frame 200 may extend in a direction different from the upper hinge axis 251 serving as the rotation center of the column frame 200 relative to the support frame 100 .

[0269] That is, the column frame 200 is coupled to the support frame 100 via two axes with different axial directions. Therefore, the rotation of the column frame 200 about the upper hinge axis 251 causes the rotation of the interlocking support member 112 via the interlocking joint 400 .

[0270] Specifically, in the first state, the joint axis 401 of the linkage joint 400 and the upper hinge axis 251 may extend in a substantially perpendicular direction to each other. That is, if the joint axis 401 does not change, the column frame 200 cannot rotate around the upper hinge axis 251.

[0271] Based on this physical relationship, the rotation of the column frame 200 causes the axial direction of the linkage joint 400 to change. Since the linkage joint 400 is coupled to the linkage support member 112, the rotation of the column frame 200 about the upper hinge axis 251 will ultimately induce the rotation of the linkage support member 112 about the support hinge axis 120, causing the axial direction of the joint axis 401 to change.

[0272] As described above, in one embodiment of the present invention, the rotation of the column frame 200 combined with the support frame 100 is linked to the linkage support component 112 through the upper hinge shaft 251 and the linkage joint 400 having different axial directions. The operator can induce the rotation of the column frame 200 by rotating the linkage support component 112 according to convenience.

[0273] The linkage joint 400 can be provided in various types and can be combined with various positions of the linkage support member 112 and the column frame 200. For example, the linkage joint 400 can be combined with the support inclined portion 115 and the column inclined portion 215 described above.

[0274] The support inclined portion 115 can be provided on the linkage support member 112. The extension direction of the support inclined portion 115 can be parallel to the joint axis 401 of the linkage joint 400. That is, similar to the joint axis 401, the axial direction of the support inclined portion 115 can be different from the axial direction of the upper hinge axis 251 and the axial direction of the support hinge axis 120. Furthermore, the column hinge axis 220 and the joint axis 401 can have different extension directions to induce changes in the column cross section 230.

[0275] For example, the support hinge axis 120 may be parallel to the first direction X, the upper hinge axis 251 may be parallel to the second direction Y, and the column hinge axis 220 may be perpendicular to the ground. The joint axis 401 may extend obliquely relative to the support hinge axis 120, the upper hinge axis 251, and the column hinge axis 220.

[0276] In the first state, the joint shaft 401 may extend on an imaginary plane extending along the first direction X and the direction Z perpendicular to the ground, and may extend obliquely with respect to the first direction X and the direction Z perpendicular to the ground.

[0277] In the second state, the joint shaft 401 may extend on an imaginary plane extending along the first direction X and the second direction Y, and may extend obliquely with respect to the first direction X and the second direction Y.

[0278] The joint shaft 401 is coupled to the linkage support member 112, and thus can rotate along with the rotation of the linkage support member 112 relative to the support hinge shaft 120. Axial rotation of the joint shaft 401 allows the column frame 200 to rotate relative to the support frame 100 and can induce rotation of the linkage support member 112 and the linkage column member 212.

[0279] On the other hand, the column inclined portion 215 can be disposed adjacent to the support inclined portion 115 so as to oppose the support inclined portion 115 and can extend parallel to the support inclined portion 115. The column inclined portion 215 can be positioned in various locations within the column frame 200. For example, the column inclined portion 215 can be provided on the linkage column member 212 and can interlock the rotation of the linkage support member 112 and the linkage column member 212.

[0280] On the other hand, in one embodiment of the present invention, the plurality of column components include a main column component 211 and a linkage column component 212 rotatably connected to the main column component 211 via a column hinge axis 220 orthogonal to the second direction Y, and the linkage joint 400 can rotatably connect the linkage column component 212 and the linkage support component 112.

[0281] The support inclined portion 115 may extend obliquely with respect to the first direction X. That is, the support inclined portion 115 may extend obliquely with respect to the longitudinal direction of the main support member 111 .

[0282] The column inclined portion 215 may be positioned opposite to the support inclined portion 115 and extend parallel to the support inclined portion 115. The linkage joint 400 may rotatably connect the support inclined portion 115 and the column inclined portion 215.

[0283] on the other hand, Figure 21 The picture in the middle has Figure 20 The process in which the linkage joint 400 rotates in order to switch from the first state to the second state, Figure 22 The picture in the middle has Figure 20 The linkage joint 400 is completely converted to the second state.

[0284] refer to Figure 21 As described above, in the first state, the column frame 200 does not rotate about the upper rotation axis unless the axial direction of the joint shaft 401 changes due to the relationship with the joint shaft 401 of the linkage joint 400.

[0285] In other words, the rotation of the column frame 200 about the upper hinge shaft 251 can induce the rotation of the linkage joint 400 , that is, the rotation of the linkage support member 112 about the support hinge shaft 120 .

[0286] The rotation of the linkage support component 112 around the support hinge axis 120 will cause the change of the support cross section 130 brought about by the four-bar motion described above, and will cause the linkage column component 212 connected by the linkage joint 400 to rotate around the column hinge axis 220.

[0287] That is, with respect to the linkage column component 212, according to the relationship with the linkage support component 112 connected by the linkage joint 400, the column frame 200, for example, the first split frame 201, can rotate around the upper hinge axis 251, and can rotate around the column hinge axis 220 relative to the main column component 211.

[0288] This rotation of the linkage column member 212 causes the aforementioned four-bar linkage motion to cause a change in the column cross-section 230. Specifically, in one embodiment of the present invention, the column frame 200 rotates relative to the support frame 100, the linkage support member 112 rotates relative to the main support member 111, the linkage column member 212 rotates relative to the linkage support member 112, and the linkage column member 212 rotates relative to the main column member 211, all of which can be simultaneously and organically performed.

[0289] Figure 22 FIG2 shows the linkage joint 400 in the second state. In the second state, the linkage support member 112 is rotated so as to protrude in the second direction Y relative to the main support member 111, and the linkage column member 212 is rotated so as to protrude in the second direction Y relative to the main column member 211.

[0290] The linkage support component 112 and the linkage column component 212 may be stacked up and down, and the linkage joint 400 where the edges of the linkage support component 112 and the linkage column component 212 are located may also be located in the second direction Y relative to the main support component 111 .

[0291] In one embodiment of the present invention, the linkage support component 112 is connected to the column frame 200 in a rotatable manner through a linkage joint 400 whose axial direction is different from that of the upper hinge shaft 251 and the support hinge shaft 120, so that it can be linked with the column frame 200 and rotate around the support hinge shaft 120.

[0292] The column frame 200 is connected to the support frame 100 via an upper hinge shaft 251 , and the joint shaft 401 of the linkage joint 400 and the upper hinge shaft 251 may extend in different directions.

[0293] The joint shaft 401 of the linkage joint 400 can rotate together with the linkage support member 112 , and can rotate together with the linkage support member 112 toward the ground in the first state and parallel to the ground in the second state.

[0294] At least a portion of the column frame 200 , for example, the linkage column member 212 , may be linked to the linkage support member 112 via the linkage joint 400 and rotate around the upper hinge shaft 251 .

[0295] As for the above-mentioned column frame 200, one of the above-mentioned multiple column components, such as the linkage column component 212, is connected to the above-mentioned linkage support component 112 through the linkage joint 400, and while rotating around the above-mentioned upper hinge shaft 251, it is linked with the above-mentioned linkage support component 112 and the above-mentioned column cross-section 230 can be changed.

[0296] On the other hand, the linkage support member 112 can rotate about the support rotation axis in conjunction with the rotation of the column frame 200 relative to the upper hinge axis 251. The linkage column member 212 can rotate about the column hinge axis 220 in conjunction with the rotation of the linkage support member 112 relative to the support rotation axis via the linkage joint 400.

[0297] The linkage column component 212 is connected to the linkage support component 112 via the linkage joint 400 , and can rotate relative to the main column component 211 in conjunction with the linkage support component 112 .

[0298] However, in one embodiment of the present invention, the column inclined portion 215 is not necessarily provided on the linkage column component 212. One of the column components defining one side of the column cross section 230 among the above-mentioned multiple column components may include the above-mentioned column inclined portion 215. In the process of converting from the above-mentioned first state to the above-mentioned second state, a pair of opposite sides of the above-mentioned column cross section 230 may approach each other in a parallel state through four-link motion.

[0299] on the other hand, Figure 23 FIG. 4 shows a linkage joint 400 according to an embodiment of the present invention. In an embodiment of the present invention, the linkage joint 400 may include a first joint body 410 , a second joint body 420 , and a binding member 430 .

[0300] The first joint body 410 may be fixed to the linkage support member 112, and the second joint body 420 may be fixed to the column frame 200. The strap member 430 may rotatably connect the first joint body 410 and the second joint body 420 while they are in contact.

[0301] The linkage joint 400 may be configured as a roll contact joint in which the first joint body 410 and the second joint body 420 are wound around the belt member 430 .

[0302] Specifically, in one embodiment of the present invention, the first connector body 410 and the second connector body 420 of the linkage connector 400 may be connected at a constant distance from each other by a strap member 430. The strap member 430 may be formed of a flexible material that is bent at a constant length.

[0303] The strap member 430 may extend in a manner that crosses the first connector body 410 and the second connector body 420. For example, Figure 23 As shown, there can be multiple strap parts 430, and one strap part 430 can be connected to the other side of the second connector body 420 while being connected to one side of the first connector body 410, and another strap part 430 adjacent to the above-mentioned one strap part 430 can be connected to the other side of the first connector body 410 and one side of the first connector body 410, respectively.

[0304] The one side and the other side of the connector body can be defined based on the rotational direction of the connector body, with the connector side as a reference. For example, one of the strap components 430 can be connected to one side of the first connector body 410 located on one side of the first connector body 410 about the mechanically defined connector axis 401.

[0305] In addition, the one of the strap members 430 may be connected to the other side of the second joint body 420 located on the other side of the second joint body 420 with the joint axis 401 as the center.

[0306] The distance between the first connector body 410 and the second connector body 420 may be fixed by the length of the binding member 430 .

[0307] Furthermore, a plurality of the strap members 430 are provided, and adjacent pairs of strap members 430 are alternately arranged in a cross-coordinate manner in the longitudinal direction, thereby maintaining the distance between the first joint body 410 and the second joint body 420 despite the bidirectional rotation of the linkage joint 400.

[0308] However, it is not necessary to provide a plurality of belt members 430 . The first joint body 410 and the second joint body 420 may be alternately wound around one belt member 430 , thereby achieving the same effect as providing a plurality of belt members 430 .

[0309] The first joint body 410 and the second joint body 420 of the linkage joint 400 are in constant contact with each other in both the first and second states, thereby enabling load transfer between them. Specifically, the linkage joint 400 according to one embodiment of the present invention rotates while the first joint body 410 and the second joint body 420 are in constant contact with each other, thereby easily supporting the load and ensuring ease of rotation between the components.

[0310] The first connector body 410 and the second connector body 420 each include a strap receiving portion 460 and a connector contact surface 450. The strap receiving portion 460 provides an area for wrapping the strap member 430 and may be recessed relative to the connector contact surface 450. However, if desired, the strap receiving portions 460 may contact each other and thereby perform the function of the connector contact surface 450.

[0311] On the other hand, the joint contact surface 450 provides a surface for the first joint body 410 and the second joint body 420 to contact and support each other. Thus, in one embodiment of the present invention, the linkage joint 400 can rotate with each other while transferring load between the linkage support component 112 and the column frame 200, i.e., the first split frame 201.

[0312] Re-reference Figure 20 One embodiment of the present invention may include a linkage support portion 440. The linkage support portion 440 is disposed on at least one of the linkage support member 112 and the column frame 200 in the first state, thereby supporting the linkage joint 400 upward.

[0313] In one embodiment of the present invention, the linkage joint 400 can be located in a load transfer path of an object in the first state. Specifically, the linkage joint 400 must be rigid enough to withstand the load of the object. The linkage support portion 440 is configured to support the linkage joint 400 in the first state, thereby increasing the load transfer capacity of the linkage joint 400.

[0314] The first joint body 410 and the second joint body 420 of the linkage joint 400 can have a shape in which at least a portion protrudes from the support frame 100 and the column frame 200, and the linkage support part 440 is set at at least one frame among the support frame 100 and the column frame 200, so that it can contact at least one protruding part of the above-mentioned first joint body 410 and the second joint body 420.

[0315] On the other hand, the linkage support portion 440 may include a first support portion 441 and a second support portion 442. The first support portion 441 is provided on the linkage support member 112 to support the first joint body 410, and the second support portion 442 is provided on the column frame 200 to support the second joint body 420.

[0316] When the second joint body 420 is disposed on the linkage column component 212 , the second support portion 442 is also disposed on the linkage column component 212 and located below the protruding portion of the second joint body 420 , thereby supporting the second joint body 420 .

[0317] Furthermore, in the first state, at least a portion of the second support portion 442 is located below the first support portion 441, thereby supporting the first support portion 441. The second support portion 442 provided on the column frame 200 is more easily disposed below than the first support portion 441 provided on the support frame 100.

[0318] Therefore, in one embodiment of the present invention, a portion of the second support portion 442 contacts the second joint body 420, and at least a portion of the remaining portion of the second support portion 442 contacts the above-mentioned first support portion 441 below the first support portion 441, so that the second support portion 442 can directly support the first support portion 441 and the second joint body 420.

[0319] Although the present invention has been illustrated and described in relation to specific embodiments, it is self-evident to those skilled in the art that the present invention may be variously modified and altered without departing from the scope of the technical idea of ​​the invention provided by the appended claims.

Claims

1. A foldable scaffolding device comprising: a supporting frame, which supports an object; as well as a column frame, which is located below the support frame and is rotatably connected to the support frame; The column frame includes a plurality of split frames sequentially connected from the support frame, and the plurality of split frames are connected to each other in a rotatable manner. In the first state, the longitudinal directions of the plurality of split frames face the ground. In the second state in which the plurality of split frames are rotated from the first state, the longitudinal directions of the plurality of split frames are parallel to the ground.

2. The foldable scaffolding device according to claim 1, wherein: In the second state, the split frame is arranged so as not to extend beyond the space between both ends of the support frame based on the longitudinal direction of the support frame.

3. The foldable scaffolding device according to claim 2, wherein: The column frame further includes a split hinge shaft rotatably connecting a pair of adjacent split frames among the plurality of split frames. The plurality of split frames are rotated from the first state to the second state such that the split hinge shafts move toward the support frame.

4. The foldable scaffolding device according to claim 1, wherein: In the second state, a portion of the column frame protrudes beyond the support frame in a direction transverse to a longitudinal direction of the support frame.

5. The foldable scaffolding device according to claim 4, wherein: In the second state, a portion of each of the plurality of divided frames protrudes beyond the support frame in a direction transverse to the longitudinal direction of the support frame.

6. The foldable scaffolding device according to claim 1, wherein: The plurality of segmentation frames include a first segmentation frame and a second segmentation frame. One end of the first split frame is rotatably connected to the support frame. One end of the second split frame is rotatably connected to the other end of the first split frame. During the transition from the first state to the second state, the other end portion of the first divided frame and the one end portion of the second divided frame rotate to approach the support frame.

7. The foldable scaffolding device according to claim 1, wherein: The supporting frame includes a plurality of supporting components. The plurality of support members include a main support member and a linkage support member rotatably coupled to the main support member and rotating in conjunction with the column frame.

8. The foldable scaffolding device according to claim 7, wherein: The supporting frame includes a plurality of supporting sections whose sides are respectively defined by the plurality of supporting members. One of the multiple sides of the support cross section is defined by the linkage support component. During the rotation from the first state to the second state, the column frame is deformed in such a manner that the height of the supporting cross section is reduced.

9. The foldable scaffolding device according to claim 8, wherein: During the transition from the first state to the second state, the support section is deformed by a four-bar linkage so that a pair of opposite sides of the plurality of sides approaches each other in a state of being parallel to each other.

10. The foldable scaffolding device according to claim 7, wherein: The main support member and the linkage support member extend along a first direction parallel to the ground. The linkage support component is connected to the main support component via a support hinge shaft extending along the first direction.

11. The foldable scaffolding device according to claim 10, wherein: The linkage support component is located below the main support component in the first state, and is arranged side by side with the linkage support component in a direction parallel to the ground in the second state.

12. The foldable scaffolding device according to claim 11, wherein: During the transition from the first state to the second state, at least a portion of the column frame, together with the interlocking support member, protrudes in a direction parallel to the ground relative to the main support member.

13. The foldable scaffolding device according to claim 10, wherein: The invention further includes a linkage joint for rotatably connecting the linkage support component and the column frame so as to enable the linkage support component to be linked to the column frame.

14. The foldable scaffolding device according to claim 13, wherein: The axial direction of the joint shaft of the interlocking joint rotates together with the interlocking support member.

15. The foldable scaffolding device according to claim 13, wherein: The column frame is connected to the support frame via an upper hinge shaft. The joint axis of the linkage joint and the upper hinge axis extend in different directions.

16. The foldable scaffolding device according to claim 15, wherein: The upper hinge shaft, the support hinge shaft, and the joint shaft have axial directions different from each other.

17. The foldable scaffolding device according to claim 16, wherein: The upper hinge axis extends along a second direction perpendicular to the first direction. The joint axis extends obliquely with respect to the first direction.

18. The foldable scaffolding device according to claim 13, wherein: The linkage support member includes a support inclined portion extending obliquely relative to the first direction. The column frame includes a column inclined portion positioned opposite to the support inclined portion and extending parallel to the support inclined portion. The linkage joint rotatably connects the support inclined portion and the column inclined portion.

19. The foldable scaffolding device according to claim 18, wherein: At least a portion of the column frame is linked to the linkage support member via the linkage joint and rotates around the upper hinge shaft.

20. The foldable scaffolding device according to claim 19, wherein: The column frame includes a plurality of column components and a plurality of column sections whose sides are respectively defined by the plurality of column components. One of the plurality of column members defining one side of the column cross section includes the column inclined portion. During the transition from the first state to the second state, a pair of opposite sides of the column cross section approach each other in a parallel state through a four-bar linkage motion.

21. The foldable scaffolding device according to claim 1, wherein: further comprising a bottom frame disposed below the column frame, The column frame is rotatably connected to the support frame via an upper hinge shaft, and is rotatably connected to the base frame via a lower hinge shaft.

22. The foldable scaffolding device according to claim 21, wherein: The plurality of split frames include a first split frame connected to the support frame via the upper hinge shaft and a second split frame connected to the first split frame via a split hinge shaft and connected to the bottom frame via the lower hinge shaft.

23. The foldable scaffolding device according to claim 22, wherein: During the transition from the first state to the second state, the split hinge shaft moves toward the center of the support frame.

Images