Installation structure of support frame

Abstract

To provide an installation structure of a support frame, which does not require a wide working area around a building to be constructed, which can be easily and inexpensively installed almost without performing fastening work, and which can be utilized for the construction of a roof surface or the construction of an exterior wall surface of the building.SOLUTION: An installation structure of a support frame 1 according to the present invention is characterized in that a reference angle material 2 is horizontally fixed in accordance with a marking formed on a roof surface, a support material 4 including a vertical support 4A is fixed to the reference angle material 2 by a pressing fitting 3, and two rail material 4A and 4A spaced apart in a height direction are fixed in an erected manner between the support 5A and 5B of the adjacent support materials 4 and 4.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an installation structure for a support frame that does not require a large work area around the building to be constructed, can be installed easily and inexpensively with almost no fastening work, and can be used for construction on the roof surface or exterior wall surface of a building. [Background technology]

[0002] In recent years, existing buildings, which are constantly exposed to various extreme weather conditions, have been facing damage and deterioration of roof areas, including eaves gutters, creating a need for the installation of new, high-performance eaves gutters. When repairing, repairing, or maintaining roof areas, such as the roof, exterior walls, or eaves gutters of existing buildings, including residential buildings, including this example, it is common to construct scaffolding around the building and at the boundary between the building and neighboring houses prior to the various construction work. In other words, building renovations primarily require the construction of scaffolding around the building, which poses significant time, cost, and other issues that are difficult to adjust.

[0003] Since the scaffolding is constructed by a contractor different from the contractor that performs the renovations, repairs, etc., the work schedule for the renovations, repairs, etc. had to be decided after the work schedule for the scaffolding construction was announced. Furthermore, when constructing a new building, if the work of creating the foundation and framework (roof underlayment and exterior underlayment) is completed early, areas and roads that were previously occupied by large amounts of materials and heavy machinery can be freed up later.

[0004] Furthermore, the construction of the scaffolding required bringing in parts (materials) according to the height and width of the building (renovation area) to the site, assembling these materials, and setting up the scaffolding to cover the construction area. Even though the materials themselves were reusable, the cost of constructing the scaffolding was not cheap. In other words, it was necessary to secure a place to temporarily store the vast amount of materials and a place to construct the scaffolding, but securing such space was often difficult. Furthermore, especially when the boundary between neighboring houses was narrow, it was also necessary to take measures to avoid damaging the garden equipment and trees of the neighboring houses. Summary of the Invention [Problem to be solved by the invention]

[0005] As mentioned above, conventional scaffolding involves bringing in parts and components appropriate to the height, width, and length of the area to be renovated, assembling them, and setting up scaffolding to cover the construction area, which poses problems such as time and cost that are difficult to adjust. Furthermore, in the construction of new buildings, it has been a great advantage to be able to reduce or significantly narrow the scaffolding required for roof and exterior wall construction after the foundation and framework have been created.

[0006] Therefore, the present invention aims to propose an installation structure for a support frame that does not require a large work area around the building to be constructed, can be installed easily and inexpensively with almost no fastening work, and can be used for construction on the roof surface or exterior wall surface of a building. [Means for solving the problem]

[0007] The present invention has been proposed in view of the above, and relates to a support frame installation structure characterized in that a reference angle member is fixed horizontally in accordance with markings formed on the roof surface, a support member having a vertical support pillar is fixed to the reference angle member with a clamp, and two rail members spaced apart in the vertical direction are fixed in an erected state between the pillars of adjacent support members.

[0008] The present invention also proposes an installation structure for a support frame, characterized in that the support frame is fixed to the reference angle member by the clamp that is rotatably attached to the end of the attachment portion of the support member. [Effects of the Invention]

[0009] The installation structure of the support frame of the present invention is a structure in which the reference angle member, the support member, and the two rail members are connected with clamps or the like, so that it does not require a large work area around the building to be constructed, and can be installed easily and inexpensively with almost no fastening work, and can be used for construction on the roof surface or exterior wall surface of a building. Therefore, it can be widely applied to installation on newly constructed roof surfaces and exterior wall surfaces, as well as to the renovation, repair, and maintenance of existing roof surfaces and exterior wall surfaces.

[0010] When the end of the attachment part of the support material is fixed to the standard angle material using the clamp that is rotatably attached, the attachment part can be attached in the appropriate position, and the support column or support material itself can be fixed in the appropriate position. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view showing an installation structure of a support frame according to a first embodiment of the present invention. [Figure 2] FIG. 2(a) is a perspective view showing a first step and a second step in Example 1, and FIG. 2(b) is an enlarged perspective view of the connection portion as seen from the rear side. [Figure 3] FIG. 10 is a perspective view showing a state in which adjacent support materials are connected in a linear manner. [Figure 4] FIG. 10 is a perspective view showing a state in which the lower rail is attached in a third step. [Figure 5] FIG. 10 is a perspective view showing a state in which adjacent lower rails are connected in a third step. [Figure 6] FIG. 10 is a perspective view showing the state in which the upper rail is attached in the third step. [Figure 7] FIG. 10 is a perspective view showing a state in which adjacent upper rails are connected in a third step. [Figure 8] FIG. 10 is a perspective view showing adjacent upper rails being connected and attached to a support. DETAILED DESCRIPTION OF THE INVENTION

[0012] The installation structure of the support frame of the present invention is characterized in that a reference angle member is fixed horizontally in accordance with markings formed on the roof surface, a support member having a vertical support pillar is fixed to the reference angle member with a clamp, and two rail members spaced apart in the vertical direction are fixed in an erected state between the pillars of adjacent support members.

[0013] The reference angle member, support member, and rail member used in the installation structure of the support frame of the present invention will be described below in that order. In addition, a working body that can be attached between the two upper and lower rail members installed in the support frame installation structure of the present invention will also be described below.

[0014] The standard angle bar may be a square bar (square pipe), L-shaped, or U-shaped angle bar attached to the roof surface as described above, but an L-shaped bar is preferred as shown in the illustrated embodiment described below, and it is also preferred that the vertical (standing) and horizontal (laying) surfaces each have multiple holes for attaching fasteners. Note that the roof surface to which the standard angle bar is attached refers to the roof substrate surface that has been formed flat in advance, whether repairing an existing roof or constructing a new roof. The standard angle bar may be a continuous horizontal bar or a fixed length bar. When a standard angle bar of a fixed length is used, the standard angle bar is connected to the standard angle bar in a straight line as shown in the illustrated embodiment described later, but the standard angle bar may also be incorporated in advance as part of the support material.

[0015] As described above, the support material is a component having a vertical support pillar, and as shown in the illustrated example described below, has an attachment portion extending from the lower end of the pillar approximately perpendicular to the roof slope direction, and it is desirable that the end of the attachment portion be fixed to the standard angle material with a clamp. It is also desirable that a clamp be rotatably attached to the attachment portion as in the illustrated embodiment described later, so that the clamp can be rotated and fixed along the reference angle bar in an overlapping manner. Here, the clamp is a member having a fitting groove that can clamp and fix plate material aligned in a stacked manner, as shown in the illustrated example described below, and it is desirable that it be attached to the attachment portion so that it can rotate freely.

[0016] Furthermore, since the support material is composed of a vertical support column and an attachment section extending in the direction of the roof slope, which are combined in a generally orthogonal, i.e., generally L-shaped, it is desirable that these support columns and attachment sections be connected in a triangular shape before construction by a reinforcing section spanning the oblique side, as shown in the illustrated example described below. This reinforcing section has a structure in which the inner frame can be stored in the outer frame so that the length can be changed, and the length can be adjusted so that the support column is vertical and the attachment section is in the direction of the roof slope, maintaining their respective angles.

[0017] It is desirable that an L-shaped metal fixture be fixed to the end of the attachment part forming the support member, as in the illustrated embodiment described below, and that a clamp be pre-fixed to the vertical surface of the metal fixture so that it can rotate freely left and right. The vertical surface of this metal fixture is the part that is fixed to the vertical surface of the standard angle bar using a clamp, and is formed wide. In addition, the upper end of this vertical surface is provided with a horizontal surface that is fixed to the bottom surface of the attachment part, forming an L-shaped metal fixture.

[0018] In addition, an L-shaped bracket and a receiving bracket for attaching the lower rail material are fixed to the front side near the lower end of the support post that forms the support material, as in the illustrated embodiment described below, and it is desirable that the clamping brackets used for attaching to the standard angle material be rotatably fixed to the left and right sides of this receiving bracket in advance. Furthermore, a support bracket for holding the upper rail material is fixed to the front side of the support pillar near the center, as in the illustrated embodiment described below, and it is desirable that the clamping brackets used for attaching to the standard angle material are rotatably fixed to the left and right sides of this support bracket in advance.

[0019] The rail members are members fixed between adjacent support posts as described above, and are installed so as to straddle two or more support posts perpendicularly. That is, they are installed so as to be disposed perpendicular to the vertical support posts, i.e., horizontally, and can form a continuous track area with a cross section shaped like a U, square U, etc. As described above, the rail members may be two or more members installed at a distance in the vertical direction, and a working body may be attached to straddle the two upper and lower installed rail members, with workers using the working body to perform various tasks. In this case, as described above, each rail member has a track area, and it is desirable that one rail member (e.g., the lower) is used for support and the other rail member (e.g., the upper) is used for auxiliary purposes (such as to prevent derailment). Furthermore, by equipping the working body with mechanisms such as rollers that can slide along each track area, the worker can perform work while appropriately changing the working position of the working body as the work progresses.

[0020] The lower (supporting) rail material is a component attached to a receiving bracket fixed to the support pillar, and is attached so as to straddle adjacent receiving brackets, and a mechanism such as a roller that rotates vertically is attached to a moving body that is part of the working body. The upper (auxiliary) rail material is a component attached to a support bracket fixed to the support pillar, and is attached so as to straddle adjacent support brackets, and a mechanism such as a roller that rotates laterally is attached to a moving body that is part of the working body. In other words, the operating body has a mechanism at its lower end, such as a vertically rotating roller, that moves along the track area of ​​the lower rail material, and a mechanism at its upper end, such as a horizontally rotating roller, that moves along the track area of ​​the upper rail material.

[0021] The work structure is attached so as to straddle the two upper and lower rail members that have been erected as described above, and serves as a place where workers can perform various tasks. As mentioned above, this working body is provided with a moving body that can slide along the track area of ​​each rail material, and is preferably provided with steps that allow the worker to work in an upright position.Furthermore, it is desirable that the working body is provided with a mechanism such as a ladder that allows the worker to move in the vertical direction, and it is even more desirable that it is provided with other mechanisms such as a safety frame to prevent the worker from falling and steps for hanging tools used in the work.

[0022] Next, the procedure for constructing the support rack installation structure of the present invention, that is, the first step, the second step, and the third step, will be described below. The construction procedure for the work body (fourth step) will also be explained below.

[0023] In the first step, a reference angle iron is fixed horizontally in line with the markings formed on the roof surface. In this case, it is desirable to securely fasten a life rope with a locking device attached to the end to the roof surface and to attach a harness hook to the life rope to ensure the safety of workers. Furthermore, as mentioned above, the roof surface refers to the roof substrate surface that has been formed flat in advance. Therefore, when repairing an existing roof, it is sufficient to remove any damaged or deteriorated roofing materials in advance and flatten the surface. When constructing a new roof, it is desirable to lay sheet materials such as asphalt roofing in advance. Furthermore, as the reference angle iron, an L-shaped iron with multiple holes on both the vertical (standing) and horizontal (laying) surfaces is desirable, as in the illustrated example described below, but as long as it is fixed to the roof surface in a continuous horizontal line, it is also acceptable to use a long iron or a set length iron that is attached butt-jointed. Furthermore, it is desirable to use an electric tool that can be operated with one hand, such as an impact driver, to drive the fixing tools (drill screws).

[0024] In the second step, the end of a support member having a vertical support pillar is fixed to the reference angle member with a clamp. The support material fixed in this process is a triangular combination of a support post, an attachment section, and a reinforcing section that are assembled approximately perpendicularly before construction as described above, and a clamp is attached to the end of the attachment section so that it can rotate freely. Therefore, the end of the attachment portion can be aligned along the vertical surface (standing surface) of the reference angle member in an overlapping manner, and the clamp attached to the end of the attachment portion can be rotated and fixed. In addition, the clamp used in this process is a component used in place of fastening work using a clamping bolt, and by the simple operation of rotating it, the vertical surface of the standard angle bar and the end of the attachment part can be easily clamped and fixed in an overlapping manner in the mating groove provided in the clamp.

[0025] In the third step, rail members spaced apart in the height direction are fixed in an erected state between the posts of the adjacent support members. The rail members (lower support rail member and upper auxiliary rail member) fixed in this process each have a track area formed thereon as described above, and if the working body is provided with a moving body having a mechanism such as a roller that can move in a sliding manner to move the track area, the worker can work while changing his / her working position as appropriate as the work progresses. The rail material may also be fixed using the clamps used in the second step, as in the illustrated embodiment described later.

[0026] In the fourth step, a working body is attached so as to straddle the two upper and lower rail members that have been erected. The working body fixed in place in this process is equipped with a moving body that can slide along the track area of ​​each rail material, as mentioned above, and is also equipped with steps that allow the worker to work while standing, mechanisms such as a ladder that allows the worker to move vertically, and a safety frame, etc., providing a place where the worker can work safely. The various parts that make up this working body are mainly made of round or square pipe material and shaped material, and the material can be anything as long as it is lightweight and strong.

[0027] The support frame, consisting of the standard angle member, support member, and two rail members, is preferably constructed from lightweight materials because it is installed on the roof surface. Also, the worker working inside the work body, which is arranged to straddle the rail members, can work by sliding it along the eaves.

[0028] Therefore, workers do not need a large work area around the building to be constructed, and the system can be installed easily and inexpensively with almost no fastening work required, making it suitable for use on the roof or exterior wall surfaces of buildings. [Example]

[0029] The support frame 1 of Example 1 of the present invention shown in Figure 1 is partially formed by the installation method shown in Figures 2 to 8, and consists of a first step in which a reference angle member 2 is fixed horizontally in accordance with the markings formed on the roof surface A, a second step in which the end of a support member 4 having a vertical support pillar 4A is fixed to the reference angle member 2 with a clamp 3, and a third step in which two rail members 5A, 5B spaced apart in the vertical direction are fixed in an erect state between the pillars 4A, 4A of adjacent support members 4, 4. The long dashed dotted lines in the figure are parallel to the eaves, and the short dashed dotted lines are parallel to the slope of the roof surface A. The braces 7 shown by dashed lines crossing the supports 2A, 2A assist in erecting each support 2A vertically and ensure the safety of workers. These braces 7 are not shown in any figures other than Figure 1.

[0030] The standard angle member 2 is an L-shaped steel member having a vertical surface (standing surface) 22 and a horizontal surface (laying surface) 21, and is formed to a predetermined length. In the first step, the reference angle member 2 is fixed horizontally in accordance with the markings formed on the roof surface A. As shown in Figure 2(a), with the horizontal surface 21 laid on the roof surface A, a fixing device (drill screw) is driven in using an electric tool that can be operated with one hand, such as an impact driver (not shown), to fix the reference angle member 2 horizontally to the roof surface A. The markings and fixing devices are not shown.

[0031] Prior to this first step, although not shown, a life rope with a locking device attached to its tip is tightly fixed to roof surface A, and a harness hook is attached to the life rope to ensure the safety of workers. Also, a sheet material such as asphalt roofing is laid on roof surface A in advance.

[0032] Next, as shown in Figure 2(b), the second step is carried out in which the end of a support material 4 having a vertical support 4A is fixed to the end on the right side of the reference angle material 2 with a clamp 3. Prior to this second step, the support material 4 is assembled. This support material 4 has a vertical support pillar 4A and an attachment portion 4B extending from the lower end of the support pillar 4A approximately perpendicular to the roof slope direction, and the end of the attachment portion 4B is fixed to the vertical surface 22 of the standard angle material 2 with a clamp 3.

[0033] The supports 4, 4' in this Example 1 have U-shaped steel attachment parts 4B connected to the lower ends of vertically arranged square steel support posts 4A, and are connected in a triangular shape so that groove-shaped inner frames 41 are bridged by reinforcing parts 4C that can be stored in outer frames 42 like hypotenuses. The length of reinforcing parts 4C can be changed by storing inner frames 41 to an appropriate length in outer frames 42 during installation, so that support posts 4A can be adjusted vertically and attachment parts 4B can be adjusted to follow the slope of roof surface A.

[0034] The support member 4' arranged adjacent to the support member 4 attached to the standard angle iron 2 is configured by connecting the two support members 4, 4 with an angle iron 2'. This angle iron 2' is an L-shaped steel member with a vertical surface (standing surface) 22 and a horizontal surface (laying surface) 21, just like the standard angle iron 2, and multiple holes are formed in each of the vertical surface 22 and the horizontal surface 21. Some holes 220 on the vertical surface 22 are shown in the figure, but it is called "angle iron 2'" to distinguish it from the standard angle iron 2.

[0035] 2(b), an L-shaped fixing bracket 4D having a wide vertical surface 43 extending downward is fixed to the lower end of the end of the attachment portion 4B, and the clamping brackets 3, 3 are rotatably attached to the fixing bracket 4D. The reference numeral 44 in the figure denotes a horizontal surface fixed to the bottom surface of the attachment portion 4B. The clamp 3 is a member having an approximately U-shaped engagement groove 31, one side of which extends lengthwise in a direction perpendicular to the engagement direction to form an attachment portion 32, and this attachment portion 32 is rotatably attached to the attachment portion 4B.

[0036] Furthermore, an L-shaped bracket 4E and a receiving bracket 4F for attaching the lower rail material 5A are fixed to the front side near the lower end of the support pillar 4A that forms the support members 4, 4', and the clamping brackets 3, 3 are rotatably fixed to the left and right sides of this receiving bracket 4F. The vertical surface of the L-shaped bracket 4E is fixed to the side of the support pillar 4A, and the horizontal surface extends approximately horizontally. The receiving bracket 4F has a shape in which the upper end of a metal plate of a predetermined width formed into an approximately J-shape is bent approximately orthogonally, and the bent horizontal piece 45 is fixed to the L-shaped bracket 4E, and the lower end of a vertical piece 46 is curved to form the approximately J-shape.

[0037] Furthermore, a support bracket 4G for holding the upper rail material 5B is fixed to the front side of the support column 4A forming the support members 4, 4', approximately near the center, and the presser brackets 3, 3 are also rotatably fixed to the left and right sides of this support bracket 4G. The lower end 471 of the vertical surface 47 of the support bracket 4G is bent toward the front surface.

[0038] Therefore, Figure 2(a) shows the second step in Example 1, in which the ends of the support members 4, each having one support post 4A and one attachment portion 4B, are fixed to the end of the standard angle member 2 with clamping fixtures 3, and then shows a sub-step in which the support members 4', each having two support posts 4A, 4A and two attachment portions 4B, 4B, are connected by the angle members 2', are fixed so that the angle members 2' are in a straight line with the standard angle member 2.

[0039] Specifically, in the second step, the vertical surface 43 of the fixing bracket 4D attached to the end of the attachment portion 4B is aligned in a superimposed state with the vertical surface 22 of the standard angle member 2, and in this state the two clamping brackets 3, 3 are rotated to fix the vertical surface 43 of the attachment portion 4B to the vertical surface 22 of the standard angle member 2. In this case, as shown enlarged in Figure 2(b), the clamps 3, 3 are positioned at the upper end of the vertical surface 43 before installation so that they can be rotated to the appropriate position, but by rotating the clamps 3, 3 so that the vertical surface 43 faces the vertical surface 22 of the standard angle bar 2 from the above-water side, the vertical surface 43 and the vertical surface 22 are clamped and attached to the fitting groove 31. In order to ensure that this work can be carried out stably, it is desirable to stretch a life rope or the like that is tightly fixed to the roof surface A (not shown) at the stopper 48 provided at the upper end of the support 4A.

[0040] Prior to the above sub-process, the support member 4' is assembled, each of which has two posts 4A and two attachment portions 4B, and which are connected by angle members 2'. At this time, the angle members 2' are assembled by rotating the clamping members 3 located inside the two fixing members 4D, 4D onto the vertical faces 22 of the angle members 2' in the same manner as in the second process, aligning the vertical faces 43 of the fixing members 4D with the holes 220 formed in the vertical faces 22, and hammering the fasteners 2b into the holes 220 to fix them together. Therefore, the support material 4' used in this sub-process has a fixing bracket 4D fixed to the attachment portion 4B located on the right side of the drawing, with the clamping bracket 3 on the left side in a rotated state (= fixed to the angle material 2') and the clamping bracket 3 on the right side in a pre-rotated state. In this sub-process, the support material 4', which has been assembled in advance as described above, is placed adjacent to the support material 4. The angle material 2' is fixed in the same manner as the fixing of the standard angle material 2 described above, by driving a fixing device 2b into the side surface 21 using an electric tool such as an impact driver, and fixing it horizontally to the roof surface A and in a straight line with the standard angle material 2.

[0041] 3, the clamping bracket 3 on the right side of the fixing bracket 4D fixed to the attachment part 4B located on the right side of the drawing is rotated as shown by the dotted arrow in the drawing to clamp it to the vertical surface 22 of the reference angle iron 2. As a result, the fixing bracket 4D fixed to the attachment part 4B located on the right side of the drawing of the support member 4' appears to be disposed across the angle iron 2' and the reference angle iron 2.

[0042] In this Example 1, a specification is shown in which a standard angle iron 2 of a predetermined length is used and a continuous angle iron 2' is attached so as to be incorporated into the support material 4'. However, if, for example, a standard angle iron that is a continuous through material is used, this second step can be carried out by arranging multiple support materials 4 at appropriate intervals without using the support material 4'.

[0043] Subsequently, in a third step, rail members 5A, 5B spaced apart in the height direction are fixed in an erected state between the posts 4A, 4A of the adjacent support members 4, 4'. First, Figures 4 and 5 show the state in which the lower rail material 5A is arranged. The rail material 5A is attached so as to span between the receiving brackets 4F, 4F of adjacent pillars 4A, 4A, and the clamping brackets 3, 3 attached to the receiving brackets 4F, 4F are rotated and fixed. Next, Figures 6 to 8 show the state in which the upper rail material 5B is arranged. The rail material 5B is attached so as to span between the support brackets 4G, 4G of adjacent pillars 4A, 4A, and the clamping brackets 3, 3 attached to the support brackets 4G, 4G are rotated and fixed in place.

[0044] The rail material 5A attached between adjacent receiving brackets 4F, 4F is a member having a gutter-shaped portion 51 in which the lower end of the vertical surface is bent in a curved shape as shown in Figure 4 and is shaped with an arc-shaped cross section, and a track area 50A is formed on the upper surface side thereof, and is formed with a length dimension that spans between adjacent receiving brackets 4F, 4F. Furthermore, the gutter-shaped track area 50A of this rail material 5A is provided at the lower end of the vertical surface-shaped mounting portion 52 and is formed in approximately the same shape as the approximately J-shaped molding surface of the receiving bracket 4F, so that the mounting portion 52 of the rail material 5A can be aligned along the vertical portion of the receiving bracket 4F, and the gutter-shaped portion 51 can be easily arranged from above between adjacent receiving brackets 4F, 4F. In this state, the rail material 5A can be fixed by rotating the holding metal fittings 3, 3 attached to the upper ends of the mounting portions 52 of the receiving metal fittings 4F, 4F as shown in FIG. 5, thereby forming the track area 50A.

[0045] The rail material 5B attached between adjacent support brackets 4G, 4G is a member having a box-shaped portion 53 that is open at the bottom as shown in Figure 6, and has a track area 50B formed on its inner side, and is formed to a length that spans between adjacent support brackets 4G, 4G. Furthermore, the box-shaped portion 53 of this rail material 5B is provided on the side of the vertical surface-shaped mounting portion 54 and on the side of the support bracket 4G, so that the mounting portion 54 of the rail material 5B can be aligned with the vertical surface 47 of the support bracket 4G, and its lower end can be engaged with the lower end 471, and the box-shaped portion 53 can be easily arranged between adjacent support brackets 4G, 4G. In this state, the rail material 5B can be fixed by rotating the holding metal fittings 3, 3 attached to the support metal fittings 4G, 4G as shown in FIG. 7, thereby forming the track region 50B.

[0046] Joint members 5C are attached to the ends of the rail members 5B and to the butt joints of adjacent rail members 5B, 5B. As shown in FIG. 8, this joint member 5C is a piece-like member having a fixing portion 55 for fixing to the support 4A at the upper end and a covering portion 56 provided on the outside of the box-like portion 53 below the fixing portion 55. A hole is formed in the fixing portion 55, so that the fastener 5d can be driven into the hole formed in the support 4A, and the covering portion 56 is formed slightly larger than the box-shaped portion 53, so that it can be attached in a fitting manner.

[0047] The working body, which is equipped with a moving body that can slide along the track areas 50A, 50B of the rail members 5A, 5B, is a place where the worker can work safely, and is equipped with steps (not shown) on which the worker can work while standing, mechanisms such as a ladder that allows the worker to move vertically, a safety frame, etc. Each part that forms this working body is made of pipe material or shape material, so it is lightweight and strong. The working body is equipped with mechanisms such as rollers that can slide along each track area, so the worker can work while appropriately changing the working position of the working body as the work progresses. [Explanation of symbols]

[0048] 1 Support stand 2 Standard angle bars 2' angle iron 2b Fixture 21 Side (laying surface) 22 Vertical surface (standing surface) 3 Clamp 31 Fitting groove 32 Mounting part 4,4' Support material 4A strut 4B Attached part 4C reinforcement 41 Inner Frame 42 Outer Frame 4D Fixing Bracket 43 Vertical surface 44 Transverse surface 4E L-shaped bracket 4F Bracket 45 Horizontal piece 46 Vertical Piece 4G support bracket 47 Vertical Surface 48 Stopper 5A (lower) rail material 50A orbital range 5B (upper) rail material 50B orbital area 5C Joint material A Roof surface

Claims

1. The standard angle iron is fixed horizontally according to the markings formed on the roof surface, A support member having a vertical support pillar is fixed to the reference angle member with a clamp, A support rack installation structure characterized in that two rail members spaced apart in the height direction are fixed in an erected state between the posts of adjacent support members.

2. 2. The support rack installation structure according to claim 1, wherein the support member is fixed to the reference angle member by the clamping member rotatably attached to the end of the attachment portion of the support member.

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