Mounting fixture and base part equipped with mounting fixture

Abstract

To provide a mounting tool that enables a base to be easily fixed by working on only one side of a scaffold. [Solution] The present invention, which solves the above-mentioned problem, is a mounting device X capable of fixing the foundation of a structure to the top surface of scaffolding, and comprises main pile portions 11, 21, 61 that can penetrate the top surface of the scaffolding, and engaging portions 12, 22, 62 that expand one end of the main pile portions 11, 21, 61 in one direction, and the main pile portions 11, 21, 61 have engagement portions 111, 211, 611 extending from the other end around the axial direction.

Description

[Technical field]

[0001] The present invention relates to a mounting fixture that allows temporary facilities to be safely installed at elevated work sites, and a foundation portion equipped with the mounting fixture. [Background technology]

[0002] Temporary cranes are required to lift heavy loads in structures where electrical and communication equipment is installed at high altitudes, such as communication towers and high-rise buildings. In such high-altitude work, scaffolding is often provided for workers, and temporary cranes are fixed to the scaffolding. In this case, the base of the crane is fixed to the steel frame on the back of the scaffolding or temporary platform so that it can withstand the weight of the heavy load to be lifted. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6289046 Summary of the Invention [Problem to be solved by the invention]

[0004] The temporary platform described in Patent Document 1 is configured to attach the base of a tower crane to a platform constructed halfway up a building. The mounting structure disclosed therein is fastened with bolts or nuts from the underside of the steel frame, but this configuration requires workers to get under the steel frame that serves as the scaffold, and there is also the possibility of parts falling off, posing a major safety issue.

[0005] Furthermore, such temporary cranes are not limited to large cranes; there are also small ones that use metal poles as substitutes, so it is preferable to provide a foundation that can be easily adapted to various working conditions.

[0006] In view of the above problems, the present invention has an object to provide a mounting tool that enables a base to be easily fixed by working on only one side of the scaffolding. [Means for solving the problem]

[0007] The present invention, which solves the above-mentioned problems, is a mounting device capable of fixing the foundation of a structure to the top surface of scaffolding, and comprises a main pile portion capable of penetrating the top surface of the scaffolding, and a locking portion that expands one end of the main pile portion in one direction, and the main pile portion has an engagement portion extending from the other end around the axial direction. With this configuration, the base can be easily secured by working on only one side of the scaffolding.

[0008] In a preferred embodiment of the present invention, a first mounting tool and a second mounting tool are provided as a set, and the first mounting tool and the second mounting tool are provided with a connecting portion at the locking portion that allows them to be connected to each other. With this configuration, the base can be stably fixed to the scaffolding using a pair of mounting fixtures.

[0009] In a preferred embodiment of the present invention, the connection portion includes a protrusion on the first mounting device and a through hole on the second mounting device. With this configuration, a pair of mounting tools can be connected with a simple operation.

[0010] In a preferred embodiment of the present invention, a plurality of the through holes are provided in the length direction of the engaging portion. Such a configuration can easily accommodate a variety of mounting conditions.

[0011] In a preferred embodiment of the present invention, two or more of the protrusions and two or more of the through holes are provided at equal intervals. With this configuration, the connection state of the pair of mounting tools can be made more stable.

[0012] In a preferred embodiment of the present invention, the main pile further includes an insertion portion on the other end side thereof in a direction intersecting with the axial direction. With this configuration, it is possible to easily prevent components from falling off by inserting a separate member through the connector.

[0013] In a preferred embodiment of the present invention, the engaging portion has a retaining portion opposed to and spaced a predetermined distance from a side surface of the main pile portion. With this configuration, even if the object to be locked is thin, the locked state can be stably maintained.

[0014] In a preferred embodiment of the present invention, the main pile portion and the locking portion are sized to hold standardized shaped steel. With this configuration, the foundation can be easily fixed to the columns and beams that form the main framework of the structure.

[0015] A preferred form of the invention is a temporary base including the mounting. This configuration makes it easy to set up a variety of structures on high-altitude scaffolding. Effect of the Invention

[0016] The present invention, which solves the above-mentioned problems, provides a mounting tool that enables the base to be easily fixed by working on only one side of the scaffolding. [Brief description of the drawings]

[0017] [Figure 1] 1 is an explanatory diagram showing the configuration of a mounting tool and a base part, and a mounting structure to an object according to a first embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is an explanatory diagram showing the configuration of a mounting fixture according to the first embodiment of the present invention. [Diagram 3] FIG. 2 is an explanatory diagram showing a state in which a base portion is fixed to an object by a mounting device according to the first embodiment of the present invention. [Figure 4] FIG. 2 is an explanatory diagram showing an example of a structure supported by a mounting fixture according to the first embodiment of the present invention. [Diagram 5] FIG. 11 is an explanatory diagram showing the configuration of a mounting fixture according to a second embodiment of the present invention. [Figure 6]FIG. 11 is an explanatory diagram showing a state in which a base portion is fixed to an object by a mounting device according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, the mounting tool X and the base part Y according to each embodiment of the present invention will be described with reference to the drawings. The description will be made in detail in the order of the configuration of the embodiment, the method of implementation, and other examples. It should be noted that the following embodiments are merely examples of the present invention, and the present invention is not limited to the following embodiments.

[0019] First Embodiment As shown in Fig. 1(a), Fig. 1(b), Fig. 2(a), Fig. 2(b), and Fig. 2(c), the mounting tool X according to this embodiment is a set of a first mounting tool 1 and a second mounting tool 2, each of which includes a main pile portion 11, 21, an engaging portion 12, 22, and an insertion portion 13, 23. The first mounting tool 1 and the second mounting tool 2 are connectable to a foundation portion Y, and enable the foundation portion Y to be fixed to an object. The object here is a scaffolding constructed in the air, particularly at a high altitude, and includes a platform S and a beam B as shown in Fig. 1(b).

[0020] As shown in FIG. 1(b), the platform S is a metal material molded into a mesh shape (expanded metal, etc.), and forms the top surface of the scaffold (stage mesh, etc.). The mesh of the platform S is large enough to stably support the human body, in particular to prevent the soles of the feet from slipping out, and is large enough that each part of the mounting fixture X can easily penetrate through it. With this configuration, the platform S forms a lightweight and sturdy scaffold, and structures can be easily fixed to its top surface using the mounting fixture X.

[0021] The beam B is a member provided on the underside of the platform S to support the platform S so as not to bend, and in this embodiment, is preferably made of standardized shaped steel. With such a configuration, the scaffolding can be easily constructed, and it becomes easier to come into surface contact with the mounting fixture X, so that the mounting state of the base part Y using the mounting fixture X can be stabilized.

[0022] In the first mounting fixture 1, the main pile portion 11 is a columnar member forming the center of the mounting fixture X, which is longer than the cross-sectional width of the beam B and can penetrate the foundation portion Y and the platform S. Here, as shown in FIG. 2(a), the center line along the longitudinal direction of the main pile portion 11 is taken as the axis A, and in the following description, the direction of the axis A is referred to as the axial direction, and the direction of a plane perpendicular to the axis A is referred to as the cross-sectional direction (the same applies to the second mounting fixture 2 described later).

[0023] The main pile portion 11 has an engagement portion 111 around the axial direction, in other words, on the side surface. The engagement portion 111 is a convex or concave portion provided spirally around the axis A from one end of the main pile portion 11, and is preferably a male screw. In the configuration of the first mounting tool 1, a locking portion 12 is provided at one end of the main pile portion 11, and the engagement portion 111 is provided from the other end to a predetermined length. With this configuration, the first mounting tool 1 can be easily connected to the foundation portion Y by fastening a bolt (or a nut 3) as shown in Figures 1(a) and 1(b).

[0024] The locking portion 12 is a beam-shaped member provided at one end of the main pile portion 11, and expands the end of the main pile portion 11 in one direction away from the axis A. In particular, it is preferable that the locking portion 12 has a length direction substantially perpendicular to the axis A, and such a configuration makes it easier to lock onto standardized shaped steel.

[0025] The insertion part 13 is an annular member provided on the other end side of the main pile part 11, i.e., the end where the engagement part 111 is provided, and allows the linear member to be inserted therethrough. In the insertion part 13, the direction in which the linear member can be inserted is a direction intersecting with the axial direction, and the linear member inserted therethrough is supportThis prevents the first mounting tool 1 from falling off. Also, the size of the insertion portion 13 is smaller than the cross-sectional area of ​​the main pile portion 11. With this configuration, when attaching a nut 3 (described later) to the engagement portion 111, the nut 3 is not obstructed.

[0026] The auxiliary wire W is a wire (or braided cord) having a strength sufficient to withstand the weight of the mounting fixture X or base part Y, and in this embodiment, is inserted into the insertion part 13. This prevents the first mounting fixture 1 from falling when the first mounting fixture 1 is passed through the platform S from the top to the bottom. The auxiliary wire W is similarly provided for the second mounting fixture 2 described later.

[0027] The second mounting fixture 2, like the first mounting fixture 1, has a main pile portion 21, an engaging portion 22, and an insertion portion 23, and the main pile portion 21 is further provided with an engagement portion 211 in the same configuration as the first mounting fixture 1. With this configuration, like the first mounting fixture 1, it can penetrate the platform S (top surface of the scaffolding) and engage with the beam B to easily secure the foundation portion Y. Also, like the insertion portion 13 of the first mounting fixture 1, an auxiliary wire W can be inserted into the insertion portion 23 to prevent it from falling during work.

[0028] The locking portions 12 and 22 are each provided with a connecting portion C that can connect them to each other. This connecting portion C may have any configuration as long as it can maintain the relative position and posture of the locking portion 12 of the first mounting fixture 1 and the locking portion 22 of the second mounting fixture 2. In this embodiment, however, as shown in Figures 2(a), 2(b), and 2(c), the first mounting fixture 1 includes a protruding portion 121, and the second mounting fixture 2 includes an insertion hole 221.

[0029] The protrusions 121 are columnar members that protrude from the locking portion 12 at least once, and enable the positioning of the first mounting fixture 1 and the second mounting fixture 2. It is preferable that the protrusions 121 protrude in the axial direction of the main pile portion 11, that is, parallel to the fastening direction of the engaging portion 111 and the nut 3. With this configuration, the movement caused by fastening the engaging portion 111 and the nut 3 is linked to the protrusions 121, and the second mounting fixture 2 can be easily and stably connected.

[0030] The insertion hole 221 is a through hole or hole that penetrates the locking portion 22 in one direction, allowing the protrusion 121 to penetrate therethrough. The cross-sectional area of ​​the insertion hole 221 is approximately the same as or slightly larger than that of the protrusion 121, and the penetration direction (depth direction) is preferably parallel to the axial direction of the main pile portion 21, i.e., the fastening direction of the engagement portion 211 and the nut 3, similar to the protrusion 121. With this configuration, the movement caused by fastening the engagement portion 211 and the nut 3 is linked to the insertion hole 221, and the engagement portion 121 can be easily and stably fitted into the protrusion 121 and connected to the first mounting tool 1.

[0031] As shown in Figures 2(a), 2(b), and 2(c), it is preferable that a plurality of protrusions 121 and a plurality of insertion holes 221 are provided in the longitudinal direction of the locking portions 12 and 22. It is more preferable that adjacent protrusions 121 and adjacent insertion holes 221 are all equally spaced apart. With this configuration, by changing the fitting combination of the protrusions 121 and the insertion holes 221, the distance between the axes A of the first mounting fixture 1 and the second mounting fixture 2 can be freely changed, and various conditions can be accommodated regarding the size and width of the object to which the mounting fixture X is attached.

[0032] It is preferable that the protruding length of the protrusion 121 and the axial thickness of the locking portion 22 of the second mounting fixture 2 (the depth of the insertion hole 221 penetrating the locking portion 12) are substantially equal. With this configuration, as shown in Fig. 3(a), even if some of the multiple protrusions 121 and insertion holes 221 are not used for engagement, almost the entirety of the locking portion 12 can come into contact with the target object (beam B in the drawing), and distortion of the mounting fixture X in the mounted state can be suppressed.

[0033] The nut 3 is a general fastener equipped with a through hole and a female thread, and engages with the engagement parts 111, 211 of the mounting fixture X, enabling the mounting fixture X to be held at a predetermined position (height). As shown in Fig. 1(a) and Fig. 1(b), the mounting fixture X is connected and held to the foundation part Y by the nut 3 (and the washer), and the foundation part Y is fixed by surrounding the object with the main pile parts 11, 21 and the locking parts 12, 22 as if holding it up.

[0034] As shown in FIG. 1(a), the base part Y is a structure having a plate 4 to which the mounting fixture X can be connected and held, and a mount 5 to which the main body (main part) of the structure can be attached, and fixes and supports the structure on the top surface of the scaffolding (platform S).

[0035] 1(a) and 1(b), the plate 4 is a flat member that allows the base part Y to be placed on the top surface of an object, and has a mounting hole 41 to which a mounting fixture X can be attached. The mounting holes 41 are through holes that penetrate the plate 4 in the thickness direction, and a plurality of mounting holes 41 are provided aligned across the surface direction of the plate 4. The mounting holes 41 are also of a size (or width) that allows at least the main pile parts 11, 21 of the mounting fixture X to penetrate through them, and thus the mounting fixture X is engaged with the surface of the plate 4 by fastening the nut 3 (and a washer) on the vertically upper side that penetrates the mounting hole 41, and is held at a predetermined position (height).

[0036] 1(b), it is preferable that the mounting hole 41 is an elongated hole having a longitudinal direction in a specific direction. With such a configuration, it is possible to easily adjust the distance between the axes A of the mounting fixtures X in the connection part C described above, and it is possible to fix the base part Y to objects of various sizes or widths.

[0037] 3(a) and 3(b) are diagrams showing a state where a foundation part Y is fixed to a platform S with a beam B by a fixture X. In this state, the foundation part Y is placed on the top surface formed by the platform S directly above the beam B, and the main pile parts 11, 21 of the fixture X penetrate the plate 4 and the platform S. The fixture X is also placed with the locking parts 12, 22 recessed under the beam B, and the protrusion 121 and the insertion hole 221 are fitted under the beam B, connecting the first fixture 1 and the second fixture 2. The main pile parts 11, 21 of the fixture X have nuts 3 fastened to the upper surface of the plate 4, and are locked and held by the surface of the plate 4 (including the washer). In addition, the locking portions 12, 22 abut against the beam B from below, and the fastening force of the nut 3 presses the beam B vertically against the locking portion 12 and the plate 4, thereby fixing the base portion Y to the top surface of the platform S.

[0038] In the example of the present invention shown in FIG. 3(a), the beam B is an H-shaped steel material with an H-shaped cross section, and in FIG. 3(b), the beam B is a channel steel material with a U-shaped cross section. The widths in the horizontal direction, that is, in the surface direction of the platform S, are different in both cases, but by changing the manner of fitting of the protrusion 121 and the insertion hole 221 in the connection part C and the distance between the axes A of the main pile parts 11 and 21 penetrating the mounting hole 41, the mounting tool X can be attached according to the size of the cross section of the beam B, and the foundation part Y can be adapted to various mounting conditions. For example, in the example of FIG. 3(a), the protrusion 121 farthest from the axis A and the insertion hole 221 farthest from the axis A are fitted together in the connection part C, and in the example of FIG. 3(b), the distance between the axes A of the first mounting tool 1 and the second mounting tool 2 is shortened by fitting all the multiple protrusions 121 and the insertion holes 221 together.

[0039] 4 shows an example of use of the mounting fixture X and base part Y according to this embodiment. In this example, a crane boom P for a simple crane is attached to the base part Y fixed to the platform S and beam B. In this way, the mounting fixture X and base part Y can be applied when fixing a temporary structure to the top surface of the scaffolding (on the platform S).

[0040] The present invention may have the following configurations. However, the following configurations are merely examples, and the presence or absence of the configurations can be arbitrarily determined unless otherwise specified.

[0041] <Example of change> 4(c) shows an enlarged view of the connection state at the connection part C. In the protrusions 121 and insertion holes 221 that constitute this connection part C, the protrusion 121 farthest from the main pile part 11 of the first mounting tool 1 and the insertion hole 221 closest to the main pile part 21 of the second mounting tool 2 may be configured to be shorter (shallower) than the other protrusions 121 and insertion holes 221. With this configuration, when the insertion hole 221 is located directly below the main pile part 21 in the second mounting tool 2, the thickness of the member (the connection area between the main pile part 21 and the locking part 22) can be ensured and strength is not impaired.

[0042] Hereinafter, a method for carrying out the present invention will be described in detail with reference to the drawings. Note that the method for carrying out the present invention will be described as an example, and the method for carrying out the present invention is not limited to this example, and the order of the steps may be changed.

[0043] <Method of implementation> First, the user places the base part Y on the top surface of the platform S. At this time, it is preferable to position the base part Y approximately directly above the beam B, and further to determine the longitudinal direction of the mounting hole 41 of the plate 4 in a direction intersecting with the longitudinal direction of the beam B. This makes it easy to change the fixing position of the mounting fixture X.

[0044] Next, the user inserts the first mounting tool 1, with a washer and nut 3 already passed through the main pile part 11, from the tip of the locking part 12 into the mounting hole 41 and the gaps in the mesh of the platform S, penetrating it partway through the main pile part 11. At this time, by inserting the auxiliary wire W through the insertion part 13 beforehand before performing the work, it is possible to prevent the first mounting tool 1 from falling. The user also passes the second mounting tool 2 (and the washer and nut 3) through the mounting hole 41 and the gaps in the mesh of the platform S in the same manner.

[0045] Next, the user adjusts the distance (distance between the axes A) between the main pile portion 11 of the first mounting tool 1 and the main pile portion 21 of the second mounting tool 2 according to the width of the beam B, and connects the first mounting tool 1 and the second mounting tool 2 at the connection part C. At this time, the user appropriately determines the positions and numbers of the projections 121 and the insertion holes 221 to be fitted together, and achieves a connection state that matches the width of the beam B. Here, since the projections 121 and the insertion holes 221 are discretely arranged in each of the locking parts 12 and 22, there may be cases where the distance between the axes A is long compared to the width of the beam B. In this case, the projections 121 and the insertion holes 221 are fitted together one by one, and the locking parts 12 and the locking parts 22 are arranged so that they are bent in a dogleg shape at the fitting position in a plan view, thereby making it possible to match the width of the beam B.

[0046] The user then tightens the nuts 3 to hold the beam B together with the set of mounting fixtures X and the plate 4, and attaches the base part Y. The user performs the above work for one or two sets of mounting fixtures X (three or more sets are also acceptable) to fix the base part Y so that it does not slip off the platform S (top surface of the scaffolding). Using the above work method, the user can perform all work on the platform S, improving safety.

[0047] After that, the user attaches a structure to the mount 5 of the base Y as shown in Fig. 3(b) or Fig. 4. The example shown in Fig. 4 is configured as a simple crane by attaching a pole whose direction can be changed about a rotation axis provided on the mount 5. In addition, it is also possible to attach the legs of temporary equipment to the mount 5 to perform work at height (on scaffolding) safely and at low cost.

[0048] When the user wishes to remove the fixture X and the foundation Y, he or she removes the fixture X and the foundation Y from the beam B and the platform S by reversing the above procedure.

[0049] An application example of the above-mentioned embodiment method is a method of installing a housing-like facility near a wall. In this example, when fixing a housing-like facility to a wall surface, the fixture X is used horizontally for a low-strength wall (such as a foam concrete wall or a block wall) where a normal anchor bolt does not work. In this configuration, the main pile parts 11, 21 penetrate the wall, the locking parts 12, 22 hold the housing as if embracing it, and the main pile parts 11, 21 are fixed on the opposite side of the wall with a nut 3 or the like, thereby fixing the housing to the wall. This configuration increases the options for the installation location of the facility to be installed on the wall surface.

[0050] Hereinafter, a mounting tool X and a base part Y according to a second embodiment of the present invention will be described with reference to the drawings. Note that the same components as those in the first embodiment will be designated by the same reference numerals and will not be described. Note also that the embodiment shown below is an example of the present invention, and the present invention is not limited to the following embodiment.

[0051] Second Embodiment 5(a), the mounting fixture X according to this embodiment is an independent mounting fixture 6 capable of stably holding an object by itself, and includes a main pile portion 61, a locking portion 62, and an insertion portion 63. The main pile portion 61 has an engagement portion 611 similar to the first embodiment, and the axis A is set along the length direction.

[0052] The locking portion 62 has a holding portion 621 that faces the side surface of the main pile portion 61 at a predetermined distance. The holding portion 621 is a columnar member that rises from the tip of the locking portion 62 in a bent manner and extends in the axial direction, and forms a hook shape together with the main pile portion 61 by facing the main pile portion 61. The distance by which the holding portion 621 is separated from the side surface of the main pile portion 61, that is, the length by which the locking portion 62 moves away from the axis A, is preferably such that the effect of bending of the locking portion 62 is almost zero, more preferably 15 cm or less, and more preferably 10 cm or less. With this configuration, even if the object to be locked by the independent mounting device 6 is a thin column or plate (in the thickness direction), a stable locking state can be maintained.

[0053] 5(b) shows the state in which the foundation Y is fixed to the beam B and the platform S by the independent mounting fixture 6. As in the first embodiment, the main pile portion 61 of the independent mounting fixture 6 penetrates the plate 4 of the foundation Y and the platform S, and the locking portion 62 and the holding portion 621 are locked to the thin plate portion of the beam B, and are connected to and held in this state.

[0054] 6(a) and 6(b) show views from different directions of the state in which the foundation part Y is fixed to the beam B and platform S by the independent mounting fixture 6. In these examples, the beam B is a shaped steel with an L-shaped cross section, and the locking part 62 locks the tip of one of the ribs, i.e., in the thickness direction of the thin plate-like member, together with the retaining part 621. In this state, by tightening the nut 3, the locking part 62 and the plate 4 embrace and press down the beam B, and the foundation part Y is fixed to the top surface of the platform S.

[0055] In the base part Y fixed to the top surface of the platform S with the above configuration, as shown in Fig. 6(a), it is preferable that the plate 4 is fixed at an angle to the beam B, in other words, the diagonal line in the surface direction of the plate 4 is oriented approximately parallel to the longitudinal direction of the beam B. With such a configuration, the base part Y can be stably fixed to the top surface of the platform S (scaffolding) with a minimum number of independent mounting fixtures 6.

[0056] Hereinafter, a method for carrying out the present invention will be described in detail with reference to the drawings. Note that the method for carrying out the present invention will be described as an example, and the method for carrying out the present invention is not limited to this example, and the order of the steps may be changed.

[0057] <Method of implementation> First, the user places the base part Y on the top surface of the platform S. At this time, as shown in FIG. 6(a), it is preferable that the base part Y is positioned approximately directly above the beam B, and further, the plate 4 is placed at an angle to the longitudinal direction of the beam B.

[0058] Next, the user inserts the independent mounting fixture 6, with the washer and nut 3 already passed through the main pile portion 61, from the tip (holding portion 621) of the locking portion 62 into the mounting hole 41 and the gaps in the mesh of the platform S, penetrating it partway through the main pile portion 61. At this time, by inserting the auxiliary wire W through the insertion portion 63 beforehand before performing the work, it is possible to prevent the independent mounting fixture 6 from falling. After that, the user locks the locking portion 62 to the lower end of the beam B.

[0059] Next, the user tightens the nut 3 to hold the beam B between the locking part 62 and the plate 4, and attaches the foundation part Y. The user performs the above work as many times as the number of independent mounting fixtures 6 required (preferably at least two or more), and fixes the foundation part Y so that it does not slip off the platform S (top surface of the scaffolding). This work method allows the user to perform all work on the platform S, improving safety. After that, the user attaches a structure to the mount 5 of the foundation part Y, as shown in Figures 6(a) and 6(b).

[0060] When the user wishes to remove the fixture X and the foundation Y, he or she removes the fixture X and the foundation Y from the beam B and the platform S by reversing the above procedure. [Explanation of symbols]

[0061] X Mounting fixture Y Foundation 1 First mounting fixture 11 Main pile section 111 Engagement part 12 Locking part 121 Protrusion 13 Insertion part 2 Second mounting fixture 21 Main pile section 211 Engagement part 22 Locking part 221 Insertion hole 23 Insertion part 3 Nut 4 Plate 41 Mounting hole 5. Mount 6 Independent mounting fixture 61 Main pile section 611 Engagement part 62 Locking part 621 Holding part 63 Insertion part A axis B beam C Connection P Crane boom S Platform W Auxiliary wire

Claims

1. A mounting device capable of fixing the foundation of a structure to the top surface of a scaffold, A pair of a first mounting tool and a second mounting tool, each of which has a main pile portion that can penetrate the top surface of the scaffolding and a locking portion that expands one end of the main pile portion in one direction, The first attachment tool and the second attachment tool are provided with a connecting portion at the locking portion, which allows them to be connected to each other. And, The connection portion includes a protrusion in the first mounting device and includes a through hole in the second mounting device. fruit, The main pile portion has an engagement portion extending axially from the other end of the mounting device.

2. The through holes are provided in a plurality of positions in the longitudinal direction of the locking portion.

2. The fixture of claim 1.

3. Two or more of the protrusions and two or more of the through holes are provided at equal intervals.

3. The fixture of claim 2.

4. Further provided at the other end side of the main pile portion is an insertion portion through which a linear member can be inserted in a direction intersecting with the axial direction.

2. The fixture of claim 1.

5. The main pile portion and the locking portion are sized to hold standardized steel beams.

2. The fixture of claim 1.

6. A temporary foundation comprising a mounting according to any one of claims 1 to 5.

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