Scaffold fixing tool and scaffold assembly method

Abstract

To improve the safety of fixing a scaffold and working on the scaffold by surely fixing a scaffold fixing tool to a building and preventing a force larger than necessary from being applied to the scaffold fixing tool.SOLUTION: Provided is a scaffold fixing tool for fixing a scaffold to an exterior wall of a building, including: an upper frame; an outer frame connected to one end of the upper frame at a right angle to a longitudinal direction of the upper frame; a scaffold mounting bracket provided on the outer frame; a spacer detachably provided on a side of a fixing portion below of the outer frame; and the fixing portion provided on the other end side of the upper frame.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a scaffolding fixture for fixing a scaffold and a scaffolding assembling method. [Background technology]

[0002] The dimensions of the pipes, building frames, cross braces, floor cloth frames, etc. used in steel pipe scaffolding assembled at construction sites and building repair sites are determined by JIS standards. However, the floor surfaces of buildings, such as verandas, can be made up of curved lines, or even if they are made up of straight lines, the dimensions are determined arbitrarily and are not necessarily standardized. The same can be said for exterior staircases. In the first place, the shape of the walls of a building may be any shape, taking into consideration design and other factors. Since scaffolding is assembled using materials that comply with JIS standards along the exterior walls and balconies of buildings of various shapes, the distance between the scaffolding and the building wall or the exterior of the balcony may be too wide or too narrow, making work less efficient. Furthermore, when assembling scaffolding along the wall of a building, the length of the scaffolding members at the corners of the building may be too long or too short. In addition, if there is an entrance or shop on the first floor, or if there are fixtures adjacent to the building, it is often difficult to set up scaffolding vertically upward from the ground. For this reason, special scaffolding members are being used to open areas such as store entrances. Also, as described in Patent Documents 1 and 2, it is publicly known to attach a frame to the balcony wall and fix the scaffolding to the frame from the balcony outer wall with clamps or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-41722 A [Patent Document 2] Japanese Patent Application Publication No. 11-182023 Summary of the Invention [Problem to be solved by the invention]

[0004] If the exterior wall of a building is roughly flat, setting up the scaffolding along that wall often allows the distance between the scaffolding and the building to be within a desirable range. However, in cases where the shape and dimensions of the exterior wall of a building cannot be smoothly adapted to existing scaffolding construction components, if the gap between the exterior wall and the scaffolding is too wide, there is a risk that workers or tools will fall, and if it is too narrow, workers may not be able to work safely or may be forced to work in a cramped position, which is especially dangerous for inexperienced workers. Furthermore, when using scaffolding fixtures to secure scaffolding to balconies, etc., the frame is often secured from the exterior wall side of the balcony. In this case, too, if wall workers stand on a narrow scaffold, it can be difficult to apply sufficient force to secure the structure, and in some cases there is a risk that the bolts may loosen over time, so it is necessary to improve safety. Furthermore, securing the frame from the exterior wall side of the balcony, etc., means that there is already a scaffold on the exterior wall side of the balcony, etc. at the time of the work (if there is no scaffolding, it is usually not possible to stand on the exterior wall side to secure the frame). In addition, in the known scaffolding fixing device in a state where the scaffolding is fixed to the balcony or the like, the approximate fulcrum is the place where the frame part indirectly contacting the outer wall surface of the balcony or the like and the frame part for fixing the scaffolding are connected. The tip of the frame that fixes the scaffolding and directly receives the load of the scaffolding is the approximate force point, and the frame part for applying force to fix the scaffolding to the inner wall of the balcony or the like is the approximate point of application. Therefore, the longer the distance from the building wall or the like to the scaffolding and the more the frame part for fixing the scaffolding is extended and fixed, the greater the moment applied to the force point. As a result, the force required to reliably fix the frame at the point of application increases, and in order to reduce the moment, it is necessary to install frames for fixing the scaffolding on more floors of the building, thereby reducing the moment applied to each frame.

[0005] Figure 1(a) shows a top view of scaffolding set up along the exterior wall of a building. When using scaffolding components whose sizes are standardized by JIS, depending on the length and shape of the exterior surface of the building, there will be excess or deficiency in the scaffolding components. As a result, a space S will be generated between the scaffolding. The occurrence of such a space S poses the risk of workers or tools falling, so flooring and cross members must be specially manufactured to fit the size of the space S and fixed to the scaffolding pipes to fill the space S. This creates new work, which reduces workability. Alternatively, if the scaffolding is set up too far away from the exterior wall of the building in order to avoid the generation of space S, a large space will be created between the scaffolding and the exterior wall, which could pose a risk of workers or tools falling, or could lead to an uncomfortable posture when working on the wall, resulting in poor workability. Conversely, if the scaffolding is set up too close to the exterior wall of the building, there is a concern that workability will be reduced because workers will be forced to assume an uncomfortable posture when working on the wall of the building. These problems with workability and the like are particularly serious as they increase the danger to workers with little experience.

[0006] In order to eliminate these drawbacks of the scaffolding shown in Figure 1(a), Figure 1(b) shows a diagram that makes it possible to set up scaffolding along the exterior wall of a building without creating space S, even if only scaffolding components of standardized sizes are used, without having to specially manufacture flooring materials, cross members, etc. For this reason, only the length of the upper frame is adjusted so that the distance from, for example, the outer frame 3 of the scaffolding fixture to the scaffolding can be adjusted. In the upper frame 2 extending in the vertical direction in FIG. 1(b), the length from the outer frame 3 to the scaffolding is made longer than the length from the outer frame 3 to the scaffolding in the upper frame 2 extending in the left-right direction. At this time, the force applied to the outer frame 3 in the upper frame 2 extending in the vertical direction (the force supporting the scaffolding) becomes stronger than the force applied to the outer frame 3 in the upper frame 2 extending in the left-right direction. As a result, it becomes difficult to support the scaffolding more reliably, and the risk of the scaffolding being damaged or collapsing due to external forces such as strong winds and earthquakes increases. This requires the scaffolding to be fixed by scaffolding members to more floors of the building, which reduces the efficiency of the entire construction work and prolongs the construction period.

[0007] FIG. 1(c) overcomes all of the drawbacks of FIG. 1(a) and FIG. 1(b) and shows a scaffold that can be implemented using the scaffolding component of the present invention. As will be explained later, in Fig. 1(c), by providing a spacer 8 between the outer wall surface of the balcony etc. and the outer frame 3, the distance between the balcony outer wall surface and the scaffolding can be adjusted as desired, preventing the above-mentioned space S from occurring. In addition, since the distance between the outer frame 3 and the scaffolding can be shortened regardless of the distance between the balcony outer wall surface and the scaffolding, the force applied to the upper frame when the scaffolding is fixed can be reduced, and furthermore, the scaffolding members can be securely fixed to the balcony wall.

[0008] In other words, when fixing the scaffolding to the wall of a building using wall connecting fittings (maximum usable length of 1200 mm or less according to JIS standards), the distance between the scaffolding and the wall must be such that it can be fixed safely and without any difficulty. In other words, when fixing a scaffolding to a building using a scaffolding fixing device, it is often difficult to securely fix the scaffolding fixing device to the building, more force than necessary is required to fix the scaffolding, and workability during fixing is poor. The problem to be solved by the present invention is to securely fix the scaffolding fixing device to a building, to prevent more force than necessary being applied to the scaffolding fixing device, to facilitate fixing the scaffolding and work on the scaffolding, and to improve safety. [Means for solving the problem]

[0009] As a result of extensive investigations aimed at solving the above problems, the present inventors have found that the problems can be solved by the following means, and have thus completed the present invention. 1. A scaffolding fixture for fixing scaffolding to the exterior wall of a building, An upper frame; an outer frame connected to one end of the upper frame at a right angle to a longitudinal direction of the upper frame; A scaffolding mounting bracket provided on the outer frame; A spacer is provided detachably on the side of the outer frame facing the fixed portion, A fixing portion is provided on the other end side of the upper frame. Scaffolding fixings. 2. A scaffolding fixing device as described in 1, which is for fixing to the upper end of a wall having an upper end that constitutes a balcony and / or an exterior staircase of a building. 3. A scaffolding fixing device as described in 1 or 2, wherein the scaffolding mounting bracket is used to fix a scaffolding tube extending vertically. 4. A scaffolding fixing device as described in any one of 1 to 3, in which an inner frame is provided parallel to the longitudinal direction of the outer frame at the other end direction of the upper frame. 5. Install an upper frame perpendicular to the length of a wall at the upper end of a wall having an upper end that constitutes a balcony and / or an exterior staircase of a building; an outer frame is provided at one end of the upper frame and connected perpendicularly to a longitudinal direction of the upper frame; A scaffolding mounting bracket provided on the outer frame; A spacer is provided detachably on the side of the outer frame facing the fixed portion, The scaffolding fixture is fixed to the inner wall surface of the wall having the upper end that constitutes the balcony and / or the exterior staircase by the fixing part provided on the other end side of the upper frame. How to assemble scaffolding. 6. A scaffolding assembly method as described in 5, in which an inner frame is provided parallel to the longitudinal direction of the outer frame at the other end of the upper frame. Effect of the Invention

[0010] When assembling scaffolding along the exterior wall of a building, in order to avoid creating the space S as described above, the distance from the exterior wall of the balcony or exterior staircase to the position where the scaffolding should be fixed may be large. In this case, the scaffolding may be fixed by simply extending the frame of the scaffolding fixture outward. In this case, the greater the distance between the exterior wall of the balcony or exterior staircase and the fixed point of the scaffolding, the stronger the force (moment) that is applied, especially to the frame of the exterior wall of the balcony. The application of a strong force means that scaffolding fixtures must be used on more floors, the scaffolding fixtures must be larger, their structure must be more complex, and the installation and management of the scaffolding fixtures must be more difficult.

[0011] However, according to the present invention, even if the distance from the exterior wall of a balcony or exterior staircase to the position where the scaffolding is to be fixed is large, the distance between the scaffolding fixing tool and the scaffolding is small by using a spacer, so the degree of force applied to one end of the scaffolding fixing tool is smaller. Also, even if the distance between the exterior wall of a building and the scaffolding varies greatly depending on the location where the scaffolding is installed, the scaffolding fixing tool of the present invention can level out the difference in distance depending on the location as much as possible. According to the scaffolding fixture of the present invention, the entire scaffolding installed on the building can be installed with an appropriate interval on the outer wall surface of any building. In addition, when installing a frame for fixing the scaffolding on a balcony, an outside staircase, etc., the fixing can be performed more reliably, and safety can be improved. At the same time, it is not necessary to install a scaffolding fixture on each floor of a building, and by installing a scaffolding using the scaffolding fixture of the present invention on some of the lower floors, it is possible to support and fix the scaffolding including the scaffolding installed toward the higher floors. In addition, even if an external force is applied to the scaffolding due to an earthquake, strong wind, etc., damage or collapse of the scaffolding can be prevented. Furthermore, it has the effect that an unskilled worker can work reliably while ensuring safety. [Brief description of the drawings]

[0012] [Figure 1(a)] Top view of scaffolding set up along the exterior wall of a building [Figure 1(b)] Top view of scaffolding set up along the exterior wall of a building [Figure 1(c)] Top view of scaffolding set up along the exterior wall of a building [Diagram 2] Diagram showing scaffolding with scaffolding fixtures installed [Diagram 3] Diagram showing scaffolding fixtures [Figure 4] A diagram of scaffolding installed on a balcony etc. using scaffolding fixtures [Diagram 5] FIG. 1 shows a scaffolding fixture of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The scaffolding fixture of the present invention will be described below with reference to the drawings, showing its embodiment. The scaffolding fixture of the present invention is used exclusively for attaching a scaffolding to be installed around the periphery of a building to the building. However, the present invention is not limited to this embodiment. The scaffolding used in the present invention is a single-pipe scaffolding and a frame scaffolding standardized by JIS A 8951-1995 (steel pipe scaffolding), and is made up of standardized steel pipes, fastening fittings, building frames and various components (building base, fabric, arms, cross braces, horizontal braces, wall connecting fittings, accessory fittings, floor boards, front treads, rear treads) used in these scaffolding.

[0014] Embodiment (Overall structure) When the scaffolding fixture of this embodiment is installed on a building, it has the overall structure shown in FIG. 2 when viewed from the side. The scaffolding fixture of the present invention is installed on the walls of balconies, exterior stairs, etc. (hereinafter collectively referred to as "balconies, etc.") on each floor of a building. Scaffolding single pipes, etc. are fixed to the scaffolding fixture with fastening metal fittings, etc. Then, the scaffolding is constructed with the necessary parts (single pipe joints, corbel frames, wall connecting metal fittings, floor-mounted cloth frames, etc.). In Fig. 2, the floors where the scaffolding is set up are the second floor or higher. When there is a eaves or floor at the entrance of a building below the floor where the scaffolding is set up, the scaffolding fixing device of the present invention can be installed on the balcony of an intermediate floor, and the scaffolding can be set up from that floor upwards. Although not shown in the figure, fixing with the scaffolding fixing device of the present invention is not required for higher floors. When assembling scaffolding using the scaffolding fixing device of the present invention, it is possible to start from the first floor.

[0015] FIG. 3 shows an example of the structure of the scaffolding fixing device of the present invention. In Fig. 3(a), one end of the upper frame 2 constituting the scaffolding fixing device 1 of the present invention is joined to the outer frame 3. The outer frame 3 is shown in Fig. 3(b), and has two vertically long holes formed in its approximate center. Fig. 3(c) is a top view of the state in which the two rod-shaped objects constituting the upper frame 2 are joined to each hole. Fig. 3(c) shows that the upper frame is made up of two rod-shaped objects. Each of the two upper frames is inserted into the two holes provided in the outer frame 3 in Fig. 3(b), and is fixed by any means not shown. When installing the scaffolding fixing device of the present invention on an exterior wall such as a balcony, for example, an upper frame is installed at the top end of the exterior wall of the balcony or the like, vertically in the length direction of the wall and also horizontally. However, it is not always necessary to provide the outer frame 3 with two vertically long holes as described above, and it is sufficient if the outer frame 3 and the upper frame 2 are fixed to each other. Also, the upper frame 2 may consist of a single piece. The fixing part 5 is provided at any position in the direction of the other end of the upper frame as viewed from the outer frame, for example, at the center of the upper frame 2, but the position of the fixing part 5 may be moved left and right in FIG. 3(a). The scaffolding fixture 1 is fixed to the balcony or the like by a bolt 6 provided on the fixing part 5 and movable left and right in the figure. At that time, the pressure-bonding part 7 is moved to the right and, although not shown, is pressure-bonded to the inner wall surface of the balcony or the like. In this state, the scaffolding fixture 1 is fixed to the balcony or the like. The pressure-bonding part may be made of a material such as a resin that can be fixed by being in close contact with the inner surface of the balcony wall. In addition, a spacer or a plate-shaped object may be interposed between the pressure-bonding part 7 and the inner wall surface of the balcony or the like to more reliably press the pressure-bonding part 7 against the inner wall surface of the balcony or the like, thereby more reliably fixing the scaffolding fixture to the balcony or the like. Fig. 3(d) shows only the fixing part 5 in Fig. 3(a) as viewed from the left side of Fig. 3(a). The fixing part 5 is made of a single plate, but is not limited to this form and may be made of multiple plates or a shape other than a plate. Also, it may be fixed in a state where it is inserted between two upper frames, or may be fixed to the outside of the upper frames.

[0016] (Scaffolding fixture frame) As shown in Figure 4, which is similar to Figure 3 and shows a scaffolding fixture installed on a wall such as a balcony, the upper frame 2 and outer frame 3 that constitute the scaffolding fixture 1 of the present invention are both metal pipes or rods with a polygonal cross section such as a triangle or a square, and have the strength required to fix the scaffolding to a building. For example, the cross-sectional outer shape of both the upper frame 2 and the outer frame 3 may be, for example, a rectangle or a square with a side of 50 mm. In the present invention, the upper frame 2 and the outer frame 3 are preferably each independently made of one or more frames that do not expand or contract. In Fig. 4, the upper frame 2 is shown as an example in which two frames are stacked with a gap between them. Similarly, the outer frame 3 is shown as an example in which a single frame with a square cross section is used.

[0017] An end or middle portion of the outer frame 3 is joined to one end of the upper frame 2 by welding, bolts, etc. At this time, the upper frame 2 and the outer frame 3 are joined at a right angle. A fixing portion 5 extending in the same direction as the outer frame 3 when viewed from the upper frame 2 is provided at a position away from one end of the upper frame 2 to which the outer frame 3 is fixed toward the other end.

[0018] (Fixed part) The fixed portion 5 in FIG. 4 is composed of two frames spaced apart as described above. The plate-shaped fixing part 5 is inserted into the space between the upper frame and fixed by the two frames. The portion 5 can be sandwiched and fixed to the inside of the upper plate by bolts or the like. The fixing portion 5 is also at an arbitrary position in the length direction of the upper frame 2, which is a changeable position. In this case, the upper frame 2 may be fixed to the upper position by bolts. It is possible to fix the equipment with bolts by leaving holes for the equipment. In this case, which of the multiple bolt holes in the upper frame 2 should be used for fastening? The fixing position of the fixing part 5 on the upper frame 2 can be adjusted by the above. This can be adjusted according to the thickness of the wall of the balcony, etc., and the thickness of the spacer 8 required. The fixing part 5 is a part for fixing the scaffolding fixture 1 of the present invention to the wall of a balcony or the like. The scaffolding is fixed to the inside of the wall (living side) of the veranda, etc., using the inside surface of the wall. It is for fixing the tool 1. The outer frame is connected to one end of the upper frame 2. The other end of the scaffolding fixture 1 is provided with a fixing portion 5. When the scaffolding fixture 1 of the present invention is fixed to a balcony or the like, The upper frame includes, in order from one end side thereof, the outer frame 3, the spacer 8, the veranda, etc. The wall and the fixing part 5 will be located.

[0019] (Crimping part 7) This fixing part 5 is provided with a bolt 6, a clamp, and a crimping part 7 provided at the tip of the bolt 6 and the clamp. The crimping part 7 is for applying pressure to a wall surface facing the interior of a room, such as a balcony, to fix the scaffolding fixing device. In Fig. 4, the scaffolding fixing device 1 is fixed to the balcony or the like by pressing the crimping part 7 with the bolt 6 against the inner surface of the balcony wall shown by the two-dot dashed line via the inner frame 4 provided so as to extend downward toward the floor of the balcony or the like. At this time, an inner frame may be provided in parallel to the longitudinal direction of the outer frame at the other end direction of the upper frame. Here, the inner frame 4 may or may not be used, but the inner frame 4 is intended to transmit the strong pressure applied by the above-mentioned pressure-bonding portion 7 towards the inner surface of the balcony wall to the inner surface of the balcony wall, and allows the scaffolding fixing device to be fixed by the fixing portion 5 over an area larger than that of the pressure-bonding portion 7. For example, when the inside of a balcony wall is not flat but has an uneven surface, it is preferable to use an inner frame. Here, the inner frame 4 may be made of metal only. Also, the surface of the inner frame 4 that comes into contact with the inside surface of the balcony wall may be made of a flexible material such as a resin or rubber sheet. These materials can also be selected according to the shape and structure of the inside of the balcony wall.

[0020] In the present invention, fixing parts 5 are provided to press the inner surface of a wall such as a balcony, but such fixing parts are not provided on the outer frame. Therefore, the significance of pressing the fixing portion 5 against the inner surface of the wall of the balcony or the like is as follows. In order to fix the scaffolding fixing device 1 of the present invention to a balcony or the like, a worker can apply sufficient force to operate a fixing device such as a clamp inside the balcony or the like, that is, in a place where the footing is relatively firm and sufficiently spacious, to fix the scaffolding fixing device to the balcony or the like. When installed, the scaffolding fixing device 1 straddles the upper end of the wall of a balcony or the like, with the upper frame in contact with the upper end of the balcony or the like, and the outer frame in contact with the outer wall surface of the balcony via spacers 8. The scaffolding fixing device 1 is then fixed to the inner wall surface of the balcony by fixing parts 5. Note that the scaffolding fixing device of the present invention may or may not be fixed to the underside of the floor of a balcony or the like.

[0021] In this way, the scaffolding fixing device of the present invention, since the fixing part 5 which is operated for fixing is located only on the inside wall surface of a balcony etc., can be fixed efficiently and safely, reduces the time and effort required for inspection after fixing, and also prevents oversight of inspection. If workers stand on scaffolding outside the building and secure the balcony from the outside with clamps or the like, the narrowness of the scaffolding means that a sufficient working space cannot be secured. Furthermore, depending on the location of the exterior wall of the balcony, etc., it is difficult for workers to reliably respond to the difference in the distance between the exterior wall and the scaffolding. In addition, even if the scaffolding is fixed to the inner frame by a fixing part such as a clamp, when the scaffolding fixing tool supports the scaffolding, the part that is most directly subjected to the force is the fixing part by the clamp on the outer frame, so it may be difficult to fix the entire scaffolding fixing tool. In contrast, by fixing only on the inside of a balcony or the like, even workers with relatively low levels of skill can fix the scaffolding fixing device safely and reliably. Furthermore, instead of using the fixing parts 5, bolts 6, and crimping parts 7, etc., as a means for fixing the scaffolding fixing device of the present invention to a balcony or the like, another means may be used to apply force to the inner wall of the balcony or the like.

[0022] (Spacer) The spacer 8 may be made of metal and have a cross-sectional shape of approximately the same dimensions as the outer frame. Alternatively, the spacer 8 may be made of metal and have a cross-sectional shape of different dimensions than the outer frame. One end of the spacer 8 is provided with a through hole for passing the upper frame through. This through hole may be provided in the body of the spacer 8, or a member for forming a through hole may be connected to the end of the body of the spacer 8. In order to form a through hole at the end of the spacer 8 body, two plate-like parts for sandwiching the upper frame are formed at one end of the spacer 8, and a hole for passing a bolt is formed in each of the two plate-like parts. Then, in a state in which the upper frame is sandwiched between the two plate-like parts, the spacer 8 may be integrated with the upper frame by fastening the bolts through the holes for passing the bolts. The spacer 8 may be removably fixed to the upper frame by any other arbitrary means. In short, it is sufficient that the structure can be detachably provided on the fixing part side of the outer frame, in other words, on the outer wall side of the outer frame such as a veranda. At this time, if there is an adjacent outer frame and adjacent other spacers 8, it is necessary to make the scaffolding fixture adhere closely to the other spacers 8. By making the fixture adhere closely, the scaffolding fixture can be reliably fixed to the balcony or the like. When using the scaffolding fixing device of the present invention, the number and dimensions of the spacers 8 will vary depending on the distance between the exterior wall surface of a balcony or the like and the scaffolding to be installed. The length of the spacer 8 may be approximately the same as that of the outer frame. The cross-sectional shape and size of the spacer 8 may be approximately the same as that of the outer frame, and when the spacer 8 is used, the thickness of the spacer 8 in the length direction of the outer frame may be selected arbitrarily within the range of, for example, 20 mm to 70 mm. In Fig. 4(b), four spacers 8 are used, but the number and size of the spacers to be used can be selected according to the situation of the installation location of the scaffolding fixing device.

[0023] The significance of using the spacer 8 is not simply to adjust the distance between the exterior wall surface of a balcony or the like and the outer frame 3, and to align the position of one or more scaffolding mounting brackets provided on the surface of the outer frame facing the scaffolding at one end of the upper frame with the position of the scaffolding. The upper frame, which is integrated and adhered closely to the outer surface of the balcony etc. via the spacer 8, directly fixes the scaffolding, preventing excessive force from being applied to the upper frame, the outer frame, and ultimately the pressure-bonding part 7 etc. The scaffolding fixing device of the present invention contacts the outer wall of the balcony etc. via the spacer 8 at a surface rather than at a point. In other words, when a plurality of spacers 8 are used in the present invention, when the scaffolding fixing device is fixed, the entire scaffolding fixing device including the spacers 8 in close contact with the outer frame 3 becomes integrated.

[0024] When the scaffolding is set up, the load of the scaffolding is applied to the connection part between the scaffolding and the outer frame 3. This is what is called the force point (or point of action). This connection part is provided by fixing fastening members such as scaffolding clamps to the outer frame 3, and these fastening members are used to fix the scaffolding single pipes and the like. As a result, the position of the fixed scaffolding single pipes relative to the outer frame 3 is determined by the size of the fastening members such as scaffolding clamps, and is located almost adjacent to them. As a result, the moment related to the outer frame 3 becomes extremely small. For example, Fig. 5(a) shows a type of conventional scaffolding fixing device. It is fixed to the inside of the wall of a balcony or the like by clamps, bolts, etc. provided at the fixing parts with members similar to the crimping part 7 in Fig. 4. Then, the outer frame 3 is fixed to the outer surface of the wall of a balcony or the like by being in close contact with the outer surface of the wall of a balcony or the like or by being fixed with members similar to the crimping part 7 in Fig. 4. In the case of Fig. 5(a), the distance d between the fulcrum A and the force point B becomes large as shown below. On the other hand, with the scaffolding fixture of Fig. 5(b) according to the present invention, it is possible to fit as many spacers as necessary between the outer frame 3 and the outer surface of the wall of the balcony or the like. As a result, the distance d between the fulcrum A and the force point B becomes small. This small distance d can always be made as small as possible by adjusting the number of spacers according to the site. In FIG. 5(b), a member similar to the spacer or the like in the present invention may be attached to the inside of a wall of a balcony or the like, and the scaffolding fixing device may be fixed to the wall of the balcony or the like by a fixing part via the similar member or the like.

[0025] According to the present invention, when the load of the scaffolding is applied to the frame, the so-called fulcrum becomes the intersection point of the outer frame 3 and the upper frame 2, and the distance between the fulcrum and the force point does not change regardless of the amount of spacer 8 used. The distance between the fulcrum and the force point is small, and in some cases depends almost entirely on the size of the connection member with the scaffolding. Therefore, if the weight of the installed scaffolding is the same, the moment that the frame of the scaffolding fixing device receives is constant (i.e., the product of the distance between the scaffolding and the outer frame 3 and the weight of the scaffolding) regardless of the distance between the scaffolding and the outer wall surface of the balcony, etc. Especially when this distance is large, the present invention can reduce the moment. For this reason, when installing the scaffolding fixture, an appropriate number and thickness of spacers 8 are selected to set the distance between the scaffolding mounting brackets provided in the longitudinal direction of the upper frame and the exterior wall of the veranda or the like within a desired range. The scaffolding mounting brackets are used to secure the scaffolding pipes that extend vertically.

[0026] If spacers 8 are not used (as in FIG. 5(b) which is not an example of the present invention), the load of the scaffolding is applied to the tip of an arm (or frame) that is extended horizontally by the distance between the scaffolding pipe and the frame installed in contact with the outer wall of a balcony or the like, and the tip of this arm becomes the point of force. At this time, the intersection of the upper frame and the outer frame becomes the fulcrum. At this time, the moment that the scaffolding fixing frame receives is not constant, but becomes even larger (i.e., the product of the (longer) distance between the scaffolding and the outer frame 3 and the weight of the scaffolding). In this way, by using the spacer 8, the position of the outer frame can be brought closer to the scaffolding, and the intersection of the upper frame and the outer frame can be adjacent to the scaffolding. By providing a scaffolding fixture at the intersection of the upper frame and the outer frame and by providing a scaffolding mounting bracket along the length of the outer frame, the distance between the fulcrum and the force point can be reduced to the minimum.

[0027] The distance from the scaffolding mounting bracket to the intersection of the outer wall of the balcony or the like and the upper frame is greater than the intersection of the outer frame and the upper frame. Therefore, it is clear that the force (moment) applied to the fulcrum when the spacer 8 is used is weaker than the force (moment) applied when the spacer 8 is not used. As shown in FIG. 1 of the above-mentioned Patent Document 1, if the scaffolding fixing device main body and the scaffolding are connected only by the wall tie, the load of the scaffolding is supported by the wall tie of a predetermined length that is extended outward. And since an excessive force moment is applied to the part where the wall tie is fixed to the main body, it is easy to make it difficult to fix the scaffolding. In this way, the force applied to the fulcrum when the spacer 8 is used is weaker than the force applied when the spacer 8 is not used, which affects the weight of the scaffold that can be fixed by the scaffolding fixing device, i.e., the number of floors that the scaffolding can be assembled on. Normally, even if the scaffolding fixing device of the present invention is used on a balcony or the like of at most about three floors, the scaffolding can be reliably fixed, and there is no need to use the scaffolding fixing device for many floors above that. Therefore, the construction period can be shortened, and the effect of reducing the number of inspection points required for the installation of the scaffolding fixing device can be achieved. However, if the spacer 8 is not used, it is necessary to fix scaffolding fixtures to the balconies etc. of all floors where the scaffolding is to be erected.

[0028] Furthermore, there is a high degree of freedom in setting the distance from the outer wall of a wall such as a balcony to the scaffolding pipe (as mentioned above, the distance between the fulcrum and the force point can be reduced, and the force applied to the fulcrum of the scaffolding fixing device can be reduced). Depending on the exterior shape of the building, it may be difficult to assemble scaffolding at a constant appropriate distance from the exterior surface of the building using scaffolding components that comply with the standards. However, even in such cases, the scaffolding can be positioned appropriately by adjusting the distance between each scaffolding in relation to the entire exterior wall of the building. Furthermore, even if a large external force is applied to the scaffolding due to an earthquake, strong winds, or the like, damage or collapse of the scaffolding can be prevented by using the scaffolding fixing device of the present invention.

[0029] (Scaffolding assembly method) A method of assembling a scaffold on-site using the scaffolding fixture of the present invention involves, for example, positioning an upper frame at the top of a solid wall having an upper end, such as a balcony or an exterior staircase on the exterior wall of a building, so that the upper frame is positioned vertically and horizontally in the length direction of the wall, and providing an outer frame on the side where the scaffolding is to be provided at one end of the upper frame on the outside of the wall, and providing a required number of spacers between the outer frame and the wall. The scaffolding fixture, which is made up of the upper frame, outer frame, spacers, etc., is fixed to the wall of the balcony, etc., by a fixing part provided on the other end side as viewed from the outer frame, and a crimping part such as a clamp provided on the fixing part. If necessary, a member such as a spacer can be interposed between the fixing part and the inside surface of the wall of the balcony, etc. The vertically extending scaffolding pipes are fixed by fastening fittings or the like provided near the outer frame of the scaffolding fixture thus fixed. The fixed scaffolding pipes are then combined with other scaffolding components to set up the scaffolding at the required locations on the exterior of the building. Note that the components for securely connecting the outer frame and the pipes that make up the scaffolding, such as fastening fittings, need only be large enough to minimize the distance between the outer frame and the scaffolding pipes. Connection clamps or the like used in scaffolding can be used. The scaffolding fixture of the present invention is installed on the second or higher floor of a building, and scaffolding can be set up on the floor above the floor on which the scaffolding fixture is installed. In this case, scaffolding may not be set up in areas that should not be covered by scaffolding, such as the entrance, shops, garages, etc. on the first floor. [Explanation of symbols]

[0030] 1 Scaffolding Fixtures 2 Upper Frame 3 Outer frame 4 Inner Frame 5 Fixed part 6 Volts 7 Crimping section 8 Spacer

Claims

1. A scaffolding fixture for fixing scaffolding to the exterior wall of a building, An upper frame; an outer frame connected to one end of the upper frame at a right angle to a longitudinal direction of the upper frame; A scaffolding mounting bracket provided on the outer frame; A spacer is provided detachably on the side of the outer frame facing the fixed portion, A fixing portion is provided on the other end side of the upper frame. Scaffolding fixings.

2. 2. The scaffolding fixture according to claim 1, which is for fixing to the upper end of a wall having an upper end that constitutes a balcony and / or an exterior staircase of a building.

3. 3. A scaffolding fixture according to claim 1 or 2, wherein the scaffolding mounting bracket is adapted to secure a scaffolding tube extending vertically.

4. 3. A scaffolding fixing device according to claim 1 or 2, wherein an inner frame is provided at the other end of the upper frame in parallel with the longitudinal direction of the outer frame.

5. An upper frame is installed perpendicular to the length of a wall having an upper end that constitutes a balcony and / or an exterior staircase of a building; an outer frame is provided at one end of the upper frame and connected perpendicularly to a longitudinal direction of the upper frame; A scaffolding mounting bracket provided on the outer frame; A spacer is provided detachably on the side of the outer frame facing the fixed portion, The scaffolding fixture is fixed to the inner wall surface of the wall having the upper end that constitutes the balcony and / or the exterior staircase by the fixing part provided on the other end side of the upper frame. How to assemble scaffolding.

6. 6. A scaffolding assembling method according to claim 5, further comprising providing an inner frame in parallel with the longitudinal direction of the outer frame at the other end of the upper frame.

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