JP7286510B2 - Sheet fixing device for temporary suspended scaffolding - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet fixing device for fixing a sheet to the upper surface of a temporary suspended scaffold constructed by horizontally arranging a plurality of scaffolding panels. It can be used for temporary suspended scaffolds used for building construction work, repair work, inspection work, etc. for buildings and the like.

Patent Documents 1 and 2 below disclose temporary suspended scaffolds used for bridge construction, repair work, inspection work, etc. on bridges, highways, and the like. Such a temporary suspended scaffolding is constructed by horizontally arranging a plurality of scaffolding panels, including scaffolding panels suspended by suspension members, in the left-right and front-rear directions.

JP-A-4-140363 JP 2015-81456 A

Depending on the type of work performed using the temporary suspended scaffold, such as repair work or inspection work, foreign matter such as concrete pieces or paint may fall onto the upper surface of the temporary suspended scaffold. Therefore, in order to prevent the top surface of the temporary suspended scaffold from being soiled or damaged by these foreign objects, a sheet is laid on the top surface of the temporary suspended scaffold and this sheet is fixed to the top surface of the temporary suspended scaffold. In order to do so, conventionally, a rod-shaped member arranged on the sheet is fixed to the scaffolding panel by fixing tools such as tex screws, or is connected to the scaffolding panel by a wire. A sheet is fixed to the upper surface of the suspended scaffold via a rod-like member.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet fixing device for a temporary suspended scaffold, which enables the work of fixing a sheet to the upper surface of a temporary suspended scaffold via a rod-like member to be carried out easily and in a short period of time. .

A sheet fixing device for a temporary suspended scaffold according to the present invention is laid on the upper surface of a temporary suspended scaffold constructed by horizontally arranging a plurality of scaffolding panels including a scaffolding panel suspended by a suspension member. a fixing device for fixing a sheet to the upper surface via a rod-shaped member disposed on the sheet, the fixing device comprising: a main body attached to the scaffold panel; an advancing/retreating member disposed so as to be able to advance and retreat in any direction; and a pressing member attached to the distal end of the advancing/retreating member for pushing the rod-shaped member from above as the advancing/retracting member advances toward the rod-shaped member. It is characterized by being configured including and.

As described above, the sheet fixing device for a temporary suspended scaffolding according to the present invention comprises a main body attached to a scaffolding panel, an advancing/retracting member disposed on the main body so as to be freely advanced and retracted toward a bar-like member in the vertical direction, and and a pressing member attached to the distal end of the advancing/retracting member for pressing the rod-shaped member from above when the advancing/retreating member advances toward the rod-shaped member. When the member is advanced toward the member, the pressing member attached to the tip of the retractable member presses the rod-shaped member from above, thereby fixing the sheet to the upper surface of the temporary suspended scaffold via the rod-shaped member. Since this work is simply a work of advancing the retractable member toward the rod-shaped member with respect to the main body, the work can be easily performed in a short time.

In addition, when the advance/retreat member is retracted from the rod-shaped member, the pressure of the rod-shaped member by the pressing member is released. The work of removing from the upper surface of the can also be performed easily and in a short time.

In the above sheet fixing device for a temporary suspended scaffolding according to the present invention, in order to allow the advance/retreat member to move back and forth in the vertical direction toward the rod-like member with respect to the main body, for example, a female screw portion is provided in the main body, and the advance/retreat member is is a male threaded member screwed into the female threaded portion, and by rotating the male threaded member, the advance/retreat member may be advanced and retreated in the vertical direction toward the rod-shaped member with respect to the main body, or the advance/retreat member may be moved to the main body. A slide member may be inserted vertically slidably through the body, and the slide member may be advanced or retracted from the main body toward the rod-like member by pushing or pulling the slide member.

Among these, according to the former, when the male threaded member is rotated once, the amount of forward movement of the male threaded member is small. This allows the sheet to be firmly fixed to the upper surface of the temporary suspended scaffold.

The female threaded portion provided in the main body may be a female threaded member such as a nut coupled to the main body, or may be a female threaded hole formed in the main body.

As described above, the main body is provided with a female threaded member such as a nut or a female threaded portion with a female threaded hole. When the main body is vertically advanced and retracted toward the rod-shaped member, the main body is provided with a horizontal first plate-shaped portion provided with the female screw portion, and forms an angle with the first plate-shaped portion. and a second plate-like portion extending from the first plate-like portion with a length component in the vertical direction.

According to this, by rotating the male threaded member with respect to the female threaded portion provided in the first plate-shaped portion of the main body, a large fixing force acting on the seat via the pressing member and the rod-shaped member is generated in the male threaded member. However, the reaction force of this fixing force can be effectively received by the second plate-shaped portion which forms an angle with the first plate-shaped portion and extends from the first plate-shaped portion with a length component in the vertical direction. Therefore, it is possible to prevent the main body from being greatly deformed.

Further, the main body includes the first horizontal plate-shaped portion provided with the female screw portion, and the first plate-shaped portion forming an angle with the first plate-shaped portion and extending from the first plate-shaped portion with a length component in the vertical direction. When the second plate-shaped portion is provided and the second plate-shaped portion extends downward from the first plate-shaped portion with a length component, this second plate-shaped portion extends downward from the first plate-shaped portion. It is preferable that the two plate-shaped portions are provided with recessed cutouts that are open downward and through which the rod-shaped member can be inserted.

According to this, even if the second plate-shaped portion extends downward from the first plate-shaped portion with a length component, the second plate-shaped portion has a downward opening and the rod-shaped member can be inserted through the recessed portion, the recessed portion prevents the rod-shaped member from interfering with the second plate-shaped portion, and prevents the second plate-shaped member from interfering with the second plate-shaped portion. It becomes possible to dispose the rod-shaped member without being affected by the shaped portion.

The main body may be a bent sheet metal product, or may be a cast product, a forged product, or the like.

Further, in the sheet fixing device for a temporary suspended scaffolding according to the present invention, in order to attach the main body of the sheet fixing device to the scaffolding panel as described above, for example, the main body is engaged with the scaffolding panel. The main body may be attached to the scaffolding panel by the locking action of the locking portion, or the mounting member may be arranged on the scaffolding panel and the member to be mounted attached to the mounting member may be attached to the main body. The attachment of this attached member to the mounting member may allow the body to be attached to the scaffolding panel.

Among these, according to the latter, by attaching the member to be attached to the attaching member, the main body of the seat fixing device can be more reliably attached to the scaffolding panel.

In addition, as in the latter case described above, the mounting member is arranged on the scaffolding panel, the member to be mounted to be mounted on the mounting member is arranged on the main body, and the main body is attached to the scaffolding panel by mounting the member to be mounted on the mounting member. When the mounting member is arranged inside a scaffolding panel whose upper surface is formed by the upper surface member, the upper surface member is provided with a hole through which the mounting member is exposed, Preferably, the member to be attached is inserted into this hole and attached to the attachment member.

According to this, the mounting member is arranged inside the scaffolding panel whose upper surface is formed by the upper surface member, and does not protrude upward from the upper surface of the scaffolding panel. The sheet can be laid flat on the upper surface member, and the upper surface member is provided with a hole for exposing the mounting member. The operation of attaching the member to be attached to the member can be performed without being affected by the upper surface member.

As described above, the mounting member is arranged on the scaffolding panel, the member to be mounted to be mounted on the mounting member is arranged on the main body, and the main body is mounted on the scaffolding panel by mounting the member to be mounted on the mounting member. In this case, it is preferable that one of a female threaded member and a male threaded member screwed into the female threaded member is used as the mounting member, and the other is the attached member.

According to this, when the member to be attached is rotatably arranged on the main body, the operation of attaching the member to be attached to the member to be attached can be easily performed by rotating the member to be attached. If the member is non-rotatably arranged in the main body, it can be easily carried out by rotating the main body.

In the sheet fixing device for a temporary suspended scaffolding according to the present invention, the direction in which the scaffolding panels are arranged side by side is the longitudinal direction, and the length dimension is the direction of the scaffolding panels. In the case of arranging a wale member that reaches the scaffold panel, it is preferable that the main body of the seat fixing device is provided with a holding portion for holding the wale member.

According to this, the holding portion provided in the main body of the seat fixing device holds the wale member which is a member for connecting the scaffolding panels by aligning or substantially matching the upper surfaces of the scaffolding panels. Therefore, the main body also serves as a holding member for holding the walling member, and the multifunctionality of the main body of the seat fixing device can be achieved accordingly.

In addition, in the case where the main body of the sheet fixing device is provided with a holding portion for holding the wale member, the wale member can be held by the holding portion. In order to do so, the holding portion is provided with a first clamping member forming a part of the main body, and is capable of being opened and closed with respect to the first clamping member, and is closed to hold the first clamping member. Alternatively, the holding portion may be a ring-shaped member through which the waling member is inserted. By rotating a set screw screwed into the ring-shaped holding portion so as to be able to move forward and backward toward the wale member, the tip of the set screw comes into contact with the wale member. The walling member may be held by a ring-shaped holding portion.

Among these, like the former, the holding portion is configured to be openable and closable with respect to the first clamping member forming a part of the main body and the first clamping member. Assuming that the structure includes a second clamping member for clamping and holding the walling member together with the clamping member, when the second clamping member is opened from the first clamping member, Since the waling member can be arranged in the holding portion, this arranging operation can be easily performed. Since it can be held by the holding portion by the clamping action of the holding member and the second clamping member, this holding operation can be easily performed.

Further, the holding portion provided in the main body of the sheet fixing device can be opened and closed with respect to the first clamping member forming a part of the main body and the first clamping member, When the structure includes the first clamping member and the second clamping member for clamping and holding the walling member together with the first clamping member when closed, the first clamping member includes a scaffolding. You may arrange|position the to-be-attached member attached to the attachment member arrange|positioned at the panel.

According to this, the first clamping member, which constitutes a part of the holding portion for holding the walling member, is attached to the scaffold panel via the attached member coupled to the first clamping member. can be attached to the attachment member arranged in the

The attached member coupled to the first clamping member is one of the female threaded member and the male threaded member screwed into the female threaded member, and the mounting member arranged on the scaffolding panel is the other. preferably.

According to this, when the member to be attached is rotatably disposed on the first sandwiching member, the operation of attaching the member to be attached to the attachment member can be easily performed by rotating the member to be attached. Further, when the member to be attached is arranged so as not to be rotatable on the first clamping member, by rotating the first clamping member or the main body of which the first clamping member constitutes a part, the Easy to do.

The sheet fixing device for a temporary suspended scaffold according to the present invention described above can be used in a temporary suspended scaffold for any purpose. It may be bridge construction, its repair, inspection work, etc., or construction work, its repair, inspection work, etc. for a building or the like.

ADVANTAGE OF THE INVENTION According to this invention, the effect that the operation|work for fixing a sheet|seat to the upper surface of a temporary suspension scaffold via a rod-shaped member can be performed easily and in a short time is acquired.

FIG. 1 is a perspective view showing the entire temporary suspended scaffold suspended by suspension members, showing a state before a sheet is laid on the upper surface of the temporary suspended scaffold. FIG. 2 is a plan view of a scaffolding panel that constitutes a temporary suspended scaffolding. FIG. 3 is a view similar to FIG. 2 showing a state when a cover member provided on the scaffolding panel is opened. FIG. 4 is a plan view showing two scaffolding panels, each rectangular in plan view, arranged side by side in the lengthwise direction of the short sides. 5 is a side cross-sectional view showing the two scaffolding panels of FIG. 4 when they are connected by connectors. FIG. 6 is a side cross-sectional view showing a state in which two scaffolding panels arranged side by side in the length direction of the long side are connected by a connector. FIG. 7 is a plan view showing a state in which a sheet fixing device according to an embodiment of the present invention is attached to a scaffolding panel, and is a diagram in which a sheet and the like fixed by the sheet fixing device are omitted. 8 is a perspective view showing the seat fixing device and scaffolding panel of FIG. 7; FIG. FIG. 9 is a perspective view of the sheet fixing device. FIG. 10 shows the seat fixing device, (A) is a right side view, (B) is a front view, and (C) is a left side view. FIG. 11 is a perspective view showing a state in which the sheet laid on the upper surface of the scaffolding panel is fixed by the sheet fixing device via the rod-shaped member, and the sheet fixing device holds the waling member. FIG. 12 is a front view showing the state of FIG. 11, showing a cross section of the seat, the rod-shaped member, and the wale member. 13 is a partially enlarged view of FIG. 12. FIG. FIG. 14 is a plan view showing that the sheet, the rod-shaped member, and the waling member are dimensioned to reach a plurality of scaffolding panels arranged side by side in the lengthwise direction of the short side. FIG. 15 is a perspective view showing a state in which sheets laid over the entire upper surface of the temporary suspended scaffolding are fixed by sheet fixing devices attached to respective scaffolding panels.

A mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view of a temporary suspended scaffolding 1 as a whole, which is used for bridge construction such as bridges and highways. The scaffolding 1 is shown before a sheet is laid on top. A temporary suspended scaffolding 1 is constructed by connecting a large number of scaffolding panels 3 arranged side by side in the horizontal direction and in the front-to-rear direction. Hanging.

Next, the structure of the scaffold panel 3 will be described. FIG. 2 shows a plan view of the scaffolding panel 3. The long sides of each scaffolding panel 3, which is rectangular in plan view, are formed by two channel materials with the opening sides facing each other. It is formed by the long side members 11 and 12, and between both end portions in the length direction of these long side members 11 and 12 or between the vicinity of both end portions, a short portion forming a right angle with the long side portion is provided. Horizontal members 13 and 14 are bridged over each of the long side members 11 and 12 and the horizontal members 13 and 14 are connected to each other by the horizontal member. This is done by joining the end members 15, which are welded to both longitudinal ends of the members 13 and 14, to the long side members 11 and 12 by welding. Between these horizontal members 13 and 14, a bridge member 16 made of a round pipe material is bridged in parallel with the long side members 11 and 12. The bridging member 16 and the end member 17 are arranged in the center of the short side of the scaffolding panel 3 in the longitudinal direction.

The upper surfaces of the long side members 11 and 12 are covered with an upper surface member 18 formed of a rectangular metal plate having a length dimension shorter than that of the long side portions of the scaffolding panel 3. , 12 side are joined to the upper surfaces of the long side members 11 and 12 by welding or screws or the like, and both ends of the upper surface member 18 on the short side side are more scaffolding than the horizontal members 13 and 14. Inside the panel 3, it is joined by welding or screws to a bar-shaped intermediate member 19 made of a channel material or the like fixed between the long side members 11 and 12 and the bridging member 16. As shown in FIG. As a result, the upper surface of the scaffolding panel 3 on which the upper surface member 18 is arranged serves as a horizontal work surface for workers to work on.

Lid members 21 are attached to the intermediate member 19 by hinges 20 so as to be openable and closable, and these lid members 21 arranged on both ends in the lengthwise direction of the long sides of the scaffold panel 3 are shown in FIG. By closing the scaffolding panel 3 in such a manner that the top surface member 18 is not covered with the top surface member 18, the top surface portions on both ends in the length direction of the long side of the scaffolding panel 3 are covered with the lid member 21, and the lid member is closed in this manner. 21 is supported from below by end members 17 provided at both ends of the bridging member 16, so that an operator can also ride on the cover member 21 to perform work. By increasing the dimension of the lid member 21 in the length direction of the short side of the scaffolding panel 3, when the lid member 21 is closed, the upper surfaces of the long side members 11 and 12 also lower the lid member 21. You may enable it to support from the side.

FIG. 3 shows the lid member 21 opened around the hinge 20 . Inside the scaffolding panel 3 exposed when the lid member 21 is opened in this way, there are two holding members 22 on the long side member 11 side and two holding members 23 on the long side member 12 side. It is arranged attached to the member 19 . A suspension ring member 24 is welded to the bridging member 16, or the suspension ring member 24 is hung around the outer circumference of the bridging member 16 so as to be vertically movable. , can protrude upward from a long hole 18A formed in the upper surface member 18. As shown in FIG. Furthermore, a long nut 25 having a large length in the vertical direction is welded to the bridging member 16, and the upper end of the long nut 25 arranged inside the scaffold panel 3 is located at the height position of the upper end of the long nut 25. is positioned lower than the top member 18 (see also FIG. 13), and the top member 18 is formed with a hole 18B for exposing the long nut 25. As shown in FIG.

The suspension ring member 24 is attached to the scaffold panel 3 in order to connect the suspension member 2 to the scaffold panel 3 by hanging or locking the suspension member 2 of FIG. It is a connecting member provided. The long nut 25 is a mounting member arranged on the scaffold panel 3 for mounting the sheet fixing device 60 according to the present embodiment shown in FIG.

Further, inside the scaffolding panel 3 of this embodiment, as shown in FIG. A hole 21A is formed to expose the long nut 26 when the lid member 21 is closed. These long nuts 26 are used to attach the members required for starting construction of the temporary suspended scaffolding 1 shown in FIG. It is used to attach members necessary for construction or work using the suspended scaffolding 1 to the scaffolding panel 3 .

In the scaffolding panel 3 shown in FIG. 3, a first connection member 27 is arranged at a location corresponding to each of the two holding members 22 provided on the side of one long side member 11, A second connection member 28 is arranged at a location corresponding to each of the two holding members 23 provided on the one long side member 12 side. For this reason, two first connection members 27 are provided on one of the two long sides of the scaffolding panel 3 that are parallel to each other, and two first connection members 27 are provided on the other long side. is provided with two second connecting members 28, which are connected at their bases to the interior of the holding members 22, 23 and are formed on the long side members 11, 12. The tip protrudes outside the scaffolding panel 3 from the opening. As shown in FIG. 5, the first connecting member 27 is formed by welding a V-shaped member 27B to the upper end of a base member 27A formed of a channel material with an opening facing upward. The second connecting member 28 is formed by welding a flat plate member 28B to the upper end of a V-shaped member 28A.

For this reason, when constructing the temporary suspended scaffolding 1 of FIG. In order to connect the scaffolding panels 3 with each other, among the scaffolding panels 3 suspended by the suspension members 2 and having a height difference, by gradually lowering the scaffolding panel 3 on the higher side, The second connecting member 28 of the scaffolding panel 3 is placed on the first connecting member 27 of the scaffolding panel 3 on the lower side, and then the scaffolding panel 3 on the higher side is placed on the scaffolding panel on the lower side. 3, as shown in FIG. 4, the second connecting member 28 of the scaffolding panel 3 on the high side is formed on the long side member 11 of the scaffolding panel 3 on the low side. After being inserted into the opening, the second connecting member 28 is further inserted into the inside of the holding member 22 on the long side member 11 side of the scaffolding panel 3 which was on the lower side. As a result, as shown in FIG. 4, the two scaffolding panels 3 arranged side by side in the lengthwise direction of the short sides of the scaffolding panels 3 are replaced by the long side member of the scaffolding panel 3 that was on the lower side. 11 and the long side member 12 of the scaffolding panel 3 on the high side are arranged adjacent to each other with no or almost no gap.

Above the long side member 11 of each scaffolding panel 3, two scaffolding panels 3 are arranged in the lengthwise direction of the short sides of these scaffolding panels 3 with no or almost no gap. Connectors 30 are provided which are used to connect these scaffolding panels 3 together after they have been installed. The specific structure of this connector 30 shown in FIGS. 2-4 is shown in FIG. The connector 30 includes a rotation center shaft 31 vertically inserted into a hole 11B formed in the upper flange portion 11A of the long side member 11 formed of a channel material, and this rotation shaft 31 formed of a male screw member. In order to prevent the center shaft 31 from slipping out of the hole 11B, a nut 32 screwed onto the lower male screw portion of the rotation center shaft 31 and a rotation shaft protruding upward from the upper flange portion 11A of the long side member 11 are provided. An arm member 33 whose one end in the length direction is joined to the upper part of the dynamic center shaft 31 by welding or the like, and a hole 33A formed in the other end in the length direction of the arm member 33 are fed from above. A bolt 34 is inserted and the head 34A is in contact with the upper surface of the arm member 33, and an E-shaped ring or the like is engaged with the bolt 34 to prevent the bolt 34 from slipping out of the hole 33A. The member 35 is included. Therefore, the connector 30 can move vertically with respect to the upper flange portion 11A of the long side member 11 by the distance between the nut 32 and the arm member 33 in the longitudinal direction of the rotation center shaft 31. It's becoming

Before the two scaffolding panels 3 are arranged side by side with no or almost no gap in the lengthwise direction of the short sides of these scaffolding panels 3, the connector 30 rotates about the rotation center axis 31. By the moving operation, the bolt 34 is in the rotation retracted position where it is separated from the first and second connection members 27 and 28 . By providing the upper flange portion 11A of the long side member 11 with a hole into which the male threaded shaft portion 34B of the bolt 34 can be inserted when the connecting device 30 is in such a rotationally retracted state, the connecting device 30 can be attached to the arm member 33. can be placed on the upper flange portion 11A in a lowered state.

As described above, after the two scaffolding panels 3 are arranged side by side with little or no gap in the lengthwise direction of the short sides of these scaffolding panels 3, the two-dot chain line in FIG. The arm member 33 is lifted from the upper flange portion 11A of the long side member 11 so as to rotate the connector 30 about the rotation center shaft 31. As shown in FIG. As a result, after the position of the male threaded shaft portion 34B of the bolt 34 is aligned with the position of the hole 11C formed in the upper flange portion 11A of the long side member 11, the arm member 33 is lowered, whereby the male threaded shaft portion 34B is moved downward. is inserted from above into the hole 11C, this male threaded shaft portion 34B is also inserted from above into the hole 22A formed in the upper surface of the holding member 22, and is further inserted into the flat plate member 28B of the second connection member 28. It is made to reach the formed female screw hole 28C. Thereafter, when the bolt 34 is rotated by a tool or the like engaged with the head portion 34A, the male threaded shaft portion 34B is screwed into the female threaded hole 28C. As a result, the two scaffolding panels 3 arranged side by side with no or almost no gap are formed by the second connection member 28 placed on the first connection member 27 and the second connection member 28 placed on the second connection member 28 . It is connected by a connector 30 provided with a bolt 34 having a male threaded shaft portion 34B screwed into the female threaded hole 28C.

Such connection work between the scaffolding panels 3 is carried out for all the scaffolding panels 3 arranged in the length direction of the short sides of the scaffolding panels 3 in order to construct the temporary suspended scaffolding 1 of FIG. Of course, when the bolt 34 is reversely rotated by a tool or the like engaged with the head 34A, the male threaded shaft 34B can be pulled out of the female threaded hole 28C, so that the scaffolding panels 3 which have been connected can be separated. can.

In order to construct the temporary suspended scaffolding 1 of FIG. 1, a plurality of scaffolding panels 3 are arranged in parallel in the longitudinal direction of the long side of the scaffolding panel 3, and two scaffolding panels 3 adjacent to each other in this direction are arranged. They are connected by a connector 50 shown in FIG. The connector 50 is composed of the horizontal members 14 provided on one scaffolding panel 3 of the two scaffolding panels 3 arranged in the lengthwise direction of the long side of the scaffolding panel 3 and the other scaffolding panel 3 . More specifically, the connector 50 connects two clamps 51 for clamping and holding the horizontal members 13 and 14. They are joined by a member 52 . Each clamp 51 has a first clamping member 53 coupled with a coupling member 52 , and a proximal end rotatably coupled to one end of the first clamping member 53 by a shaft 54 . A male threaded member 55, a second clamping member 57 whose proximal end is rotatably connected to the other end of the first clamping member 53 by a shaft 56, and a distal end of the second clamping member 57. The cross members 13 and 14 are clamped by the first clamping member 53 and the second clamping member 57 by being screwed into the male threaded member 55 inserted into the bifurcated portion formed in the , and a nut 58 for holding.

A plurality of such connectors 50 are provided in the length direction of the short side of the scaffold panel 3, which is the length direction of the horizontal members 13, 14, for example, the bridging member 16 shown in FIG. The two connecting members 50 are arranged on both sides of the end member 17, and all the scaffolding panels 3 arranged in the lengthwise direction of the long sides of the scaffolding panels 3 are connected to each other. The operation of connecting the scaffolding panels 3 with the connecting member 50 is performed by opening the cover member 21 arranged so as to be freely opened and closed by the hinge 20 described above on the upper side of the horizontal members 13 and 14 . When the nut 58 is loosened, the clamping and holding of the horizontal members 13 and 14 by the two clamps 51 composed of the first pinching member 53 and the second pinching member 57 as main members is released. Therefore, the connected scaffolding panels 3 can be separated from each other.

The connector for connecting the two scaffolding panels 3 in the length direction of the long side of the scaffolding panel 3 is composed of the two first clamping members 5 of the above-described connector 50 as one member. It may be formed.

Further, in the temporary suspended scaffolding 1 according to this embodiment shown in FIG. However, some scaffolding panels that are not suspended by the suspension members 2 are provided, and such scaffolding panels are attached to the scaffolding panels 3 that are suspended by the suspension members 2 By connecting and integrating the connector 30 and the connector 50, the scaffolding panel 3 suspended by the suspension member 2 may be suspended from the bridge pier.

7 and 8 show a state in which the sheet fixing device 60 according to the present embodiment is arranged on the upper surface of the scaffold panel 3, and FIGS. 7 and 8 show the scaffold panel 3 at this time. It is a plan view and a perspective view. In these figures, the sheet 5, the bar member 6, and the wale member 7 shown in FIG. 11 are omitted. 9 shows an overall perspective view of the seat fixing device 60, FIG. 10(A) is a right side view of the seat fixing device 60, FIG. 10(B) is a front view of the seat fixing device 60, and FIG. (C) is a left side view of the seat fixing device 60. FIG.

As shown in FIGS. 9 and 10, the main body 61 of the sheet fixing device 60 includes an attached portion 61A attached to the scaffolding panel 3 and a sheet 5 that presses the upper surface of the scaffolding panel 3 via the bar member 6. The attached portion 61A and the pressing portion 61B are integrally connected. The attached portion 61A also serves as a holding portion 62 for holding the walling member 7, and the holding portion 62 includes a first holding member 63 on the lower side and a proximal end of the first holding member 63. A second clamping member 65 on the upper side, which is freely openable and closable with respect to the first clamping member 63 , and a tip end of the first clamping member 63 . A male threaded member 67 whose base is rotatably connected to the part by a shaft 66, and a nut 68 screwed on the male threaded member 67 inserted into a bifurcated part formed at the tip of the second clamping member 65. It is a clamp configured including and. Between the first and second clamping members 63 and 65, which are both sheet metal press products, the walling member 7 formed of a round pipe material is clamped by these clamping members 63 and 65. Approximately semi-circular recesses 63A and 65A corresponding to the outer surface shape of the waling member 7 are formed so that it can be worn and held.

Further, the first clamping member 63 is configured so that the sheet fixing device 60 can be attached to the elongated nut 25 shown in FIGS. As shown in FIG. 10C, the bolt 69 has a head portion 69A inside the first clamping member 63 and a bottom portion of the first clamping member 63. A male screw shaft portion 69B placed on top of 63B and extending from the head portion 69A is inserted into a hole vertically penetrating through the bottom portion 63B, and the male screw shaft portion 69B extends downward from the bottom portion 63B. It is a thing. A lock nut 70 is screwed onto the male threaded shaft portion 69B below the bottom portion 63B. It is non-rotatably connected to the bottom.

For this purpose, as shown in FIG. 11, a sheet 5 is laid on the upper surface of the scaffold panel 3, and as shown in FIG. 13, which is a partially enlarged view of FIG. The male threaded shaft portion 69B of the bolt 69 and the lock nut 70 are inserted into the hole 5A in which the male threaded shaft portion 69B is provided, and the male threaded shaft portion 69B is inserted into the hole 18B provided in the plate-like upper surface member 18 forming the upper surface of the scaffolding panel 3. , and the tip of the male threaded shaft portion 69B is aligned with the position of the long nut 25 arranged inside the scaffolding panel 3, and then the first clamping member 63 is included. When the main body 61 of the seat fixing device 60 is rotated, the male threaded shaft portion 69B is screwed into the long nut 25, so that the seat fixing device 60 can be attached to the scaffolding panel 3. FIG. For this reason, in this embodiment, the long nut 25 arranged inside the scaffolding panel 3 is screwed by a female screw member arranged inside the scaffolding panel 3 in order to attach the sheet fixing device 60 to the scaffolding panel 3. A bolt 69 having a male-threaded shaft portion 69B screwed into the long nut 25 is a male-threaded member provided in the holding portion 62 of the main body 61 of the seat fixing device 60. It is a member to be attached by

Therefore, the holding portion 62 including the first pinching member 63 having the bolt 69 as the attached member is attached to the scaffolding panel 3 in the main body 61 of the seat fixing device 60. This is the attached portion 61A described above.

Before the male threaded shaft portion 69B of the bolt 69 is screwed into the long nut 25, the lock nut 70 is loosened, and in this state, the second clamping member 65 is opened and rotated with respect to the first clamping member 63. After that, the bolt 69 is rotated by a tool or the like engaged with the head 69A, and the male screw shaft 69B is screwed into the long nut 25, thereby attaching the sheet fixing device 60 to the scaffold panel 3, The bolt 69 may then be non-rotatably coupled to the bottom portion of the first pinch member 63 by rotating the lock nut 70 and tightening it against the bottom portion 63B of the first pinch member 63 . According to this, the main body 61 of the seat fixing device 60 can be attached to the scaffolding panel 3 by rotating only the bolt 69 instead of rotating the entire main body 61 of the seat fixing device 60 .

9 and 10, the main body 61 of the sheet fixing device 60 includes the aforementioned holding portion 62 and a pressing portion 61B for pressing the sheet 5 against the upper surface of the scaffolding panel 3 via the bar member 6. As shown in FIG. 10(C), this pressing portion 61B is connected to a nut 71, which is a female screw member, and has a U-shaped opening downward. The base member 72 is attached to the first clamping member 63 forming part of the holding portion 62 as shown in FIG. 10(B). They are joined by welding or the like. As shown in FIG. 10C, the base member 72, which is a stamped and bent piece of sheet metal, includes a horizontal first plate-like portion 72A and both ends of the first plate-like portion 72A in the width direction. It consists of two second plate-shaped portions 72B extending downward with a downward length component from the portion of the first plate-shaped portion 72A. It is bent vertically downward from both ends in the width direction and extends vertically downward.

A nut 71, which is a female screw member, is coupled to the upper surface of the first plate-shaped portion 72A by welding or the like. The shaft portion 73B is inserted through a hole provided in the first plate-shaped portion 72A and protrudes downward from the first plate-shaped portion 72A. installed. Therefore, by rotating the bolt 73 with a tool or the like engaged with the head portion 73A of the upper end portion of the male threaded shaft portion 73B, the bolt 73 and the pressing member 74 are moved up and down with respect to the nut 71 and the base member 72. be able to. Therefore, as shown in FIG. 13, a sheet 5 made of synthetic resin such as cloth or vinyl is laid on the upper surface of the scaffolding panel 3, and a bar member 6 is arranged on the sheet 5. At the same time, the arrangement position of the rod-shaped member 6 with respect to the sheet fixing device 60 attached to the scaffold panel 3 is adjusted so that the rod-shaped member 6 is arranged below the bolt 73, and then the bolt 73 is tightened. When the head 73</b>A is rotated to move it forward downward, the pressing member 74 can press the rod-shaped member 6 downward. It can be pressed and fixed on the upper surface.

The pressing member 74 may be fixed to the lower end portion of the male threaded shaft portion 73B of the bolt 73 by welding or the like. It may be attached so as to be rotatable around the rotation center member by. When the pressing member 74 is rotatably attached to the lower end portion of the male threaded shaft portion 73B of the bolt 73 in this way, the pressing member 74 does not rotate with respect to the male threaded shaft portion 73B of the bolt 73 which is operated to rotate. , the pressing operation can be performed without causing rotational friction between the pressing member 74 and the rod-shaped member 6. As shown in FIG.

As shown in FIG. 14, the sheet 5 has an area covering the upper surface of a plurality of scaffolding panels 3 arranged adjacent to each other, and the sheet 5 according to this embodiment is shown in FIG. As shown, it has an area covering the upper surface of all the scaffolding panels 3 that constitute the temporary suspended scaffolding 1 . 13, the seat 5 has a hole 5A provided in the seat fixing device 60 for inserting the male threaded shaft portion 69B of the bolt 69 and the lock nut 70, and the holes 5A shown in FIGS. As shown, a long hole 5B for exposing the suspension ring member 24 provided in the scaffolding panel 3 is provided for each scaffolding panel 3 whose upper surface is covered with the sheet 5. .

As shown in FIG. 11, the rod-like member 6 made of rectangular timber or the like has a length dimension in the length direction of the short side portion of the scaffolding panel 3, which is rectangular in plan view. For this reason, as shown in FIGS. 14 and 15, the bar member 6 has a sheet 5 laid on its upper surface, and a plurality of rod members 6 are arranged side by side in the length direction of the short side of the scaffold panel 3 . has reached scaffolding panel 3. The rod-like member 6 is pressed downward by a pressing member 74 at the tip of the male threaded shaft portion 73B of the bolt 73 arranged in the seat fixing device 60 attached to each scaffolding panel 3. The sheet 5 is pressed and fixed to the upper surfaces of the scaffolding panels 3 via 74 .

The pressing portion 61B, which is a part of the main body 61 of the sheet fixing device 60, is formed of a base member 72 having a U-shape opening downward as described with reference to FIG. 10(C). The base member 72 includes a horizontal first plate-shaped portion 72A and two second plates that are bent vertically downward from both ends of the first plate-shaped portion 72A in the width direction and extend vertically downward. The direction in which these second plate-like portions 72B are arranged is the longitudinal direction of the rod-like member 6, which is shown in FIG. 10(B). As shown in FIG. 13, each of the second plate-shaped portions 72B is formed with a recessed cutout 72C that opens downward. By inserting the rod-shaped member 6, the rod-shaped member 6 can be arranged on the sheet 5 without interfering with the second plate-shaped portion 72B.

A main body 61 of each sheet fixing device 60 is provided with a holding portion 62 for holding the walling member 7 shown in FIG. This wale member 7, which is a member for connecting these scaffolding panels 3, has a length extending parallel to the bar member 6, and the length dimension of the wale member 7 is A sheet 5 is laid on the upper surface in the same manner as the bar member 6, and the length reaches a plurality of scaffolding panels 3 arranged in parallel in the lengthwise direction of the short sides of the scaffolding panels 3. Therefore, by attaching the sheet fixing device 60 having the holding portion 62 holding the wale member 7 to each scaffolding panel 3 , the main body 61 of the seat fixing device 60 can be attached to the upper surface of each scaffolding panel 3 . are matched or substantially matched to serve as a holding member for holding the walling member 7 which is a member for connecting the scaffolding panels 3, and the main body 61 of the seat fixing device 60 accordingly. Multifunctionality can be achieved.

Furthermore, according to the seat fixing device 60 according to this embodiment, the bolt 73 arranged in the pressing portion 61B of the main body 61 is coupled to the first plate-like portion 72A of the base member 72 forming the pressing portion 61B. Since the bolt 73 is screwed into the nut 71, which is a female threaded member, the bolt 73 is a male threaded member that is rotatably operated, and advances and retreats toward the rod-like member 6 by being rotatably operated. It is also a component. Therefore, in order to fix the sheet 5 laid on the upper surface of the scaffolding panel 3 to the upper surface of the scaffolding panel 3 by means of the sheet fixing device 60 via the rod-like member 6, the bolt 73 must be rotated. The male threaded shaft portion 73B of the bolt 73 and the pressing member 74 attached to the distal end portion of the male threaded shaft portion 73B are advanced toward the rod-shaped member 6 to press the pressing member 74 against the rod-shaped member 6. Therefore, this work can be performed easily and in a short time.

Further, in the present embodiment, the advancing/retreating member arranged in the pressing portion 61B of the main body 61 of the seat fixing device 60 is the bolt 73 which is a male screw member which advances toward the rod-shaped member 6 by being rotated. Therefore, when the bolt 73 is rotated once, the forward movement amount of the male threaded shaft portion 73B of the bolt 73 is small. Therefore, the sheet 5 can be firmly fixed to the upper surface of the scaffolding panel 3 .

Among the members constituting the main body 61 of the seat fixing device 60, the aforementioned base member 72 is a horizontal first member to which the nut 71, which is a female screw member into which the male screw shaft portion 73B of the bolt 73 is screwed, is coupled. Since it has a first plate-like portion 72A and a second plate-like portion 72B extending downward from the first plate-like portion 72A with a downward length component, the bolt 73 is attached to the nut 71. By rotating the bolt 73, even if a large fixing force acts on the seat 5 via the pressing member 74 and the rod-like member 6, the reaction force of this fixing force is absorbed by the second plate-like portion 72B. It can be effectively received, and for this reason, it is possible to prevent the main body 61 from being greatly deformed.

Among the members constituting the main body 61 as described above, the base member 72 is a horizontal first plate-shaped portion to which the nut 71 is coupled, which is a female screw member into which the male screw shaft portion 73B of the bolt 73 is screwed. 72A and a second plate-like portion 72B extending downward from the first plate-like portion 72A with a downward length component. As described above, since the recessed cutout portion 72C through which the rod-shaped member 6 can be inserted is formed, the rod-shaped member 6 and the second plate-shaped portion 72B do not interfere with each other.

Further, among the members constituting the main body 61 of the sheet fixing device 60, the first pinching member 63, which is also a constituent member of the holding portion 62, has a long nut which is a mounting member disposed on the scaffolding panel 3. Since the bolt 69 which is a member to be attached to the scaffolding panel 3 is arranged, the sheet fixing device 60 can be easily and quickly attached to the scaffolding panel 3 by screwing the externally threaded shaft portion 69B of the bolt 69 into the long nut 25. In addition, the sheet fixing device 60 can be easily removed from the scaffolding panel 3 in a short time by extracting the male threaded shaft portion 69B of the bolt 69 from the long nut 25.

The long nut 25 is arranged inside the scaffolding panel 3 whose upper surface is formed by a plate-shaped upper surface member 18. The upper surface member 18 is formed with a hole 18B for exposing the long nut 25. Therefore, by inserting the male threaded shaft portion 69B of the bolt 69 into the hole 18B, the male threaded shaft portion 69B can be screwed into the long nut 25 to attach the sheet fixing device 60 to the scaffolding panel 3, and Since the long nuts 25 do not protrude upward from the upper surfaces of the scaffolding panels 3, the sheets 5 can be laid flat on the upper surfaces of the respective scaffolding panels 3. As shown in FIG.

Further, as described above, the main body 61 of the seat fixing device 60 according to the present embodiment is a member for connecting the scaffolding panels 3 by aligning or substantially matching the upper surfaces of the scaffolding panels 3 . It has a holding portion 62 for holding the wale raising member 7, and as described above, the holding portion 62 includes the lower first holding member 63 and the first holding member 63. A second clamping member 65 on the upper side, which is rotatably connected to the base end by a shaft 64 and can be opened and closed with respect to the first clamping member 63, and the first clamping member 63. A male threaded member 67 whose base is rotatably connected to the distal end of the second clamping member 65 by a shaft 66 and a male threaded member 67 inserted into a bifurcated portion formed at the distal end of the second clamping member 65 are screwed together. nut 68 and the nut 68 . Therefore, the operation for holding the walling member 7 in the holding portion 62 is to attach the second holding member 65 to the first holding member 63 . After opening and placing the walling member 7 on the first clamping member 63 and closing the second clamping member 65 with respect to the first clamping member 63 , the male screw member 67 is attached to the second clamping member 65 . This can be easily done in a short time by inserting it into the bifurcated portion of the distal end portion and rotating and tightening the nut 68 screwed on the male screw member 67 . Further, the work for removing the waling member 7 from the holding portion 62 can be easily performed in a short time by performing the reverse work of the above work.

In the embodiment described above, the rod-shaped member 6 and the waling member 7 extend in the length direction of the short side portion of the scaffolding panel 3, which is rectangular in plan view. By changing the orientation of the sheet fixing device 60 shown in FIG. It may extend in the lengthwise direction of the long side.

Further, in the above-described embodiment, the sheet 5 is laid on the upper surface of all the scaffolding panels 3 that constitute the temporary suspended scaffolding, but the sheet 5 is installed on a part of the scaffolding panels 3 among these scaffolding panels 3 may be laid on top of the Moreover, the rod-shaped member 6 and the wale member 7 also have a length reaching a part of the scaffolding panels 3 out of all the scaffolding panels 3 arranged side by side in the length direction of the rod-shaped member 6 and the wale member 7. It may be dimensioned.

Moreover, the sheet 5 laid on the upper surface of the temporary suspended scaffolding 1 may be a plurality of sheets whose ends are overlapped.

INDUSTRIAL APPLICABILITY The present invention is used for fixing a sheet laid on the upper surface of a temporary suspended scaffold used for bridge work on bridges, highways, etc., construction work for buildings, etc., repair, inspection work, etc. can do.

REFERENCE SIGNS LIST 1 temporary suspended scaffold 2 suspended member 3 scaffold panel 5 sheet 6 bar member 7 walling member 18 upper surface member 18B hole 25 long nut which is both a mounting member and a female screw member 60 sheet fixing device 61 main body 62 holding portion 63 First clamping member 65 Second clamping member 69 Bolt, which is a member to be mounted and is also a male screw member 71 Nut, which is a female screw portion 72 Base member 72A First plate-shaped portion 72B Second plate-shaped portion 72C Concave notch 73 Bolt, which is a male screw member and also a forward/backward member 74 Pressing member

Claims (10)

A sheet laid on the upper surface of a temporary suspended scaffolding constructed by horizontally arranging a plurality of scaffolding panels including a scaffolding panel suspended by a suspension member is provided as a rod-shaped sheet laid on the sheet. A fixing device for fixing to the upper surface via a member,
a main body attached to the scaffolding panel; an advancing/retracting member disposed on the main body so as to be able to move forward and backward toward the rod-shaped member; A sheet fixing device for a temporary suspended scaffold, comprising: a pressing member for pressing the rod-like member from above by advancing toward it. The sheet fixing device for a temporary suspended scaffolding according to claim 1, wherein the main body is provided with a female threaded portion, and the advancing/retracting member is a male threaded member screwed into the female threaded portion. Sheet fixing device for temporary suspended scaffolding. The sheet fixing device for a temporary suspended scaffolding according to claim 2, wherein the main body includes a horizontal first plate-shaped portion provided with the female screw portion, and a vertical plate-shaped portion forming an angle with the first plate-shaped portion and extending in the vertical direction. A sheet fixing device for a temporary suspended scaffold, comprising: a second plate-like portion extending from the first plate-like portion with a length component. In the sheet fixing device for temporary suspended scaffolding according to claim 3, the second plate-like portion extends downward from the first plate-like portion with a length component, and the second plate-like portion has 1. A sheet fixing device for a temporary suspended scaffolding, characterized in that a recessed cutout opening downward and through which said rod-like member can be inserted is provided. In the sheet fixing device for a temporary suspended scaffold according to any one of claims 1 to 4, a mounting member is arranged on the scaffold panel, and a member to be mounted to be mounted on the mounting member is arranged on the main body. A sheet fixing device for a temporary suspended scaffold, characterized in that The sheet fixing device for a temporary suspended scaffolding according to claim 5, wherein the mounting member is arranged inside the scaffolding panel whose upper surface is formed of an upper surface member, and the mounting member is exposed on the upper surface member. A sheet fixing device for a temporary suspended scaffold, characterized in that a hole is provided so that the member to be attached is inserted into the hole and attached to the attaching member. 7. The sheet fixing device for a temporary suspended scaffolding according to claim 5, wherein the mounting member is one of a female threaded member and a male threaded member screwed into the female threaded member, and the member to be attached is , and the other. The sheet fixing device for a temporary suspended scaffold according to any one of claims 1 to 7, wherein the direction in which the scaffolding panels are arranged is the longitudinal direction of the plurality of scaffolding panels. A temporary suspended scaffolding characterized by the fact that wale members whose length reaches these scaffolding panels are disposed, and the main body is provided with a holding part for holding the wale members. seat fixing device. The sheet fixing device for a temporary suspended scaffolding according to claim 8, wherein the holding portion includes a first clamping member forming a part of the main body, and can be opened and closed with respect to the first clamping member. and a second clamping member for clamping and holding the wale member together with the first clamping member when closed. Seat fixing device. The sheet fixing device for a temporary suspended scaffold according to claim 9, wherein the first clamping member is provided with a member to be attached that is attached to the attachment member that is arranged on the scaffold panel. Sheet fixing device for temporary suspended scaffolding.

Images