JP7202812B2 - Temporary hanging scaffolding and its construction method - Google Patents

Description

The present invention relates to a temporary suspended scaffolding formed by a plurality of scaffolding panels suspended by suspension members, the scaffolding panels, and a construction method thereof, for example, repairing bridges such as highways and bridges and buildings. , inspection work, etc.

Patent Document 1 and Patent Document 2 below disclose that a temporary suspension scaffold is constructed at a work site in order to carry out work such as repair and inspection of bridges and buildings such as expressways. there is Such a temporary suspended scaffolding is formed by arranging a plurality of scaffolding panels, each of which is suspended by a suspension member, side by side in the left-right direction and the front-rear direction. In order to connect two scaffolding panels that are adjacently arranged in one of the left-right direction and the front-rear direction, one of the two parallel sides is provided with a second There are a plurality of scaffolding panels with connecting members provided with one connecting member and having a second connecting member connectable to the first connecting member on the other side, the first connecting member and the second connecting member. One of the connection members extends from the outer contour of the panel body of the scaffolding panel with connection members, which has a rectangular overall shape in plan view except for the first connection member and the second connection member. The other connecting member is provided inside this outer contour.

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

As described above, in a temporary suspended scaffold formed by using a plurality of scaffolding panels with connection members, building materials and articles of equipment used for work can be lifted from the ground to the temporary suspended scaffold, or can be lifted from the temporary suspended scaffold to the ground. You may be required to perform work such as unloading. In such a case, if an opening penetrating vertically can be provided in the temporary suspended scaffold, the above work can be easily performed by passing the article through the opening.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a temporary suspended scaffolding, a scaffolding panel thereof, and a construction method therefor, in which it is possible to provide a vertically penetrating opening.

A temporary suspended scaffold according to the present invention is a temporary suspended scaffold formed by arranging a plurality of scaffolding panels, each of which is suspended by a suspension member, in parallel in the left-right direction and the front-rear direction, wherein the plurality of scaffolding In order to connect two scaffolding panels that are adjacently arranged in one of the left-right direction and the front-rear direction, the scaffolding panel has two side portions that are parallel to each other. There are a plurality of scaffolding panels with connection members, each of which has a first connection member provided on one side and a second connection member connectable to the first connection member provided on the other side, and At least one of the first connecting member and the second connecting member has a rectangular overall shape in plan view when the first connecting member and the second connecting member are excluded. In the temporary suspended scaffold projecting outward from the outer contour of the panel body of the scaffolding panel with the connecting member, the plurality of scaffolding panels with the connection member is a first scaffolding panel, and the first scaffolding panel and the first scaffolding panel at least one second scaffolding panel provided with a connecting member and not provided with said second connecting member; and not provided with said first connecting member but with said second connecting member. At least one third scaffolding panel and at least one fourth scaffolding panel which is a connecting memberless scaffolding panel without both the first connecting member and the second connecting member. and the fourth scaffolding panel arranged between the second scaffolding panel and the third scaffolding panel arranged in the one direction is adjacent in the other of the lateral direction and the longitudinal direction. The first scaffolding panel is detachably connected to the first scaffolding panel by a connector, and the fourth scaffolding panel is detachable by this separation, and an opening penetrating in the vertical direction is formed by this detachment. It is characterized by

In this temporary suspended scaffolding, the fourth scaffolding panel is a connecting memberless scaffolding panel in which both the first connecting member and the second connecting member are not provided. The first scaffolding panel, which is arranged adjacently in the other direction of the front and back direction, is separably connected by a connector, and this separation allows the fourth scaffolding panel to be removed. This removal is affected by the first connecting member of the second scaffolding panel and the second connecting member of the third scaffolding panel, which are arranged adjacent to the fourth scaffolding panel in one of the left-right direction and the front-rear direction. As a result, the temporary suspended scaffolding can be provided with an opening extending vertically through which articles and the like can be passed.

In the above-described temporary suspended scaffolding according to the present invention, the fourth scaffolding panel, excluding the connector, has a rectangular overall shape in plan view like the panel main body of the first scaffolding panel. The size of the fourth scaffolding panel in plan view, the first scaffolding panel excluding the first connecting member and the second connecting member, the second scaffolding panel excluding the first connecting member, and the second connecting member It is preferably the same as the panel body of the third scaffolding panel. According to this, a temporary suspended scaffold formed by arranging these scaffolding panels side by side in the left-right direction and the front-rear direction can be formed by aligning the respective scaffolding panels in the left-right direction and the front-rear direction.

In addition, the connector may be attachable to and detachable from the fourth scaffolding panel, or may be integrally connected to the fourth scaffolding panel.

Further, in the above temporary suspended scaffolding according to the present invention, the first connecting member provided on the first scaffolding panel and the second scaffolding panel and the second connecting member provided on the first scaffolding panel and the third scaffolding panel These scaffolding panels, which have a rectangular overall shape in plan view except for the first connection member and the second connection member, may protrude from the outer contour of the panel body, or may protrude outside from the first connection member. Of the second connection members, only one connection member protrudes outside from the outer contour, the other connection member is provided inside the outer contour, and the one connection member is inside the outer contour. The one connection member and the other connection member may be connected by being inserted into the connector.

Among a plurality of scaffolding panels for forming a temporary suspended scaffolding, the scaffolding panels of the temporary suspended scaffolding according to the present invention are arranged side by side in the left-right direction and the front-rear direction by being suspended by suspension members. wherein at least one scaffolding panel of is connected to another scaffolding panel adjacently arranged in one of the left-right direction and the front-rear direction on both of two sides parallel to each other It is detachably connected to another scaffolding panel that is adjacently arranged in the other of the left-right direction and the front-rear direction by a connector, and is removed by this separation. It is characterized in that it can be used to form an opening penetrating vertically in the temporary suspended scaffolding by this removal.

As described above, in the scaffolding panel of the temporary suspended scaffolding according to the present invention, another scaffolding is arranged adjacently in one of the left-right direction and the front-rear direction on both of the two sides that are parallel to each other. There is no connecting member for connecting to the panel, and the scaffolding panel is separably connected to another scaffolding panel that is adjacently arranged in the other of the left-right direction and the front-rear direction by a connector. This separation allows the scaffolding panel according to the present invention to be removed. As a result, the temporary suspended scaffolding can be provided with an opening extending vertically through which articles and the like can be passed.

With respect to the scaffolding panel of the temporary scaffolding according to the above-described present invention, the overall shape in plan view excluding the connector is rectangular, and the size in plan view is the size of the another scaffolding panel and the further scaffolding. It is preferably the same as the panel body of the panel. According to this, the scaffolding panel of the temporary scaffolding according to the present invention can be arranged in parallel with the another scaffolding panel and the further another scaffolding panel in the left-right direction and the front-rear direction. Allows the construction of suspended scaffolding.

Further, the connector may be attachable to and detachable from the scaffolding panel of the temporary scaffolding according to the present invention, or may be integrally connected to the scaffolding panel of the temporary scaffolding according to the present invention.

A temporary suspended scaffold construction method according to the present invention is a temporary suspended scaffold for forming a temporary suspended scaffold by arranging a plurality of scaffolding panels, each of which is suspended by a suspension member, in parallel in the left-right direction and the front-rear direction. In the construction method, the scaffolding panel has two sides parallel to each other for connecting two scaffolding panels arranged adjacently in one of the left-right direction and the front-rear direction. A scaffolding panel with a connection member is provided with a first connection member on one side and a second connection member that can be connected to the first connection member on the other side. At least one of the first connecting member and the second connecting member has a rectangular overall shape in plan view except for the first connecting member and the second connecting member. A plurality of first scaffolding panels projecting outward from the outer contour portion of the panel body of the scaffolding panel with connection members, and at least one scaffolding panel provided with the first connection members and not provided with the second connection members. second scaffolding panels, at least one third scaffolding panel not provided with said first connection member but provided with said second connection member, said first connection member and said second connection and at least one fourth scaffolding panel which is a connecting memberless scaffolding panel in which both members are not provided, and the fourth scaffolding panel is adjacently arranged in one of the left-right direction and the front-rear direction. The first scaffolding panels are connected to each other by the first connecting member and the second connecting member, and the second scaffolding panel, the third scaffolding panel, and the fourth scaffolding panel are connected in the one direction by the fourth scaffolding panel. For arranging a scaffolding panel between the second scaffolding panel and the third scaffolding panel, and connecting the scaffolding panels adjacently arranged in the other of the left-right direction and the front-rear direction with a connector. and removing the fourth scaffolding panel that is detachably connected to the first scaffolding panel in the other direction by the connector, thereby vertically moving the temporary suspended scaffolding and a second operation step performed to form a through opening.

As described above, in the temporary suspended scaffolding construction method according to the present invention, the first scaffolding panels that are adjacently arranged in one of the left-right direction and the front-rear direction are connected by the first connecting member and the second connecting member. However, the fourth scaffolding panel disposed between the second scaffolding panel and the third scaffolding panel in the one direction is not provided with the first connecting member and the second connecting member, and The fourth scaffolding panel, which is arranged adjacent to the first scaffolding panel in the other of the left-right direction and the front-rear direction, is detachably connected to the first scaffolding panel by a connector. The panels can be removed to provide the temporary suspended scaffold with vertically through openings through which items and the like can pass.

In the method for constructing a temporary suspended scaffolding according to the present invention, both ends of the connector for connecting the first scaffolding panel and the fourth scaffolding panel in the other direction are connected to the first scaffolding panel. The work of connecting to the fourth scaffolding panel may be performed in the first work step, or the connecting device may be attached to the fourth scaffolding panel in advance before the first work step is performed. By placing the first scaffold panel and the fourth scaffold panel in the other direction by lowering the connector together with the fourth scaffold panel from above at the construction site of the temporary suspended scaffold. You may make it connect.

According to the latter, the work for connecting the first scaffolding panel and the fourth scaffolding panel in the other direction out of the left-right direction and the front-rear direction can be performed simply and in a short time.

Further, in the method for constructing a temporary suspended scaffolding according to the present invention, after the second work step is performed, the fourth scaffolding panel is lowered from top to bottom so that the first scaffolding panel and the An operation of connecting the fourth scaffolding panel in the other direction may be performed.

According to this, the opening formed vertically through the temporary suspended scaffolding for passing articles or the like can be closed again by the fourth scaffolding panel.

After performing the second work step as described above, the fourth scaffolding panel is lowered from top to bottom to connect the first scaffolding panel and the fourth scaffolding panel in the other direction with the connector. The work may be carried out by attaching the connector to the fourth scaffolding panel in advance, or after the fourth scaffolding panel is lowered from above, the first scaffolding panel and the fourth scaffolding panel are connected by the connector. The scaffolding panel may be connected in the other direction.

Further, in the method for constructing a temporary suspended scaffolding according to the present invention, the fourth scaffolding panel excluding the connecting member has a rectangular overall shape in plan view, like the panel main body of the first scaffolding panel. The size of the fourth scaffolding panel excluding the connecting members in plan view is the first scaffolding panel excluding the first connecting member and the second connecting member, the first scaffolding panel excluding the first connecting member It is preferably the same as the panel body of the second scaffolding panel and the third scaffolding panel except for the second connecting member. According to this, a temporary suspended scaffold formed by arranging these scaffolding panels side by side in the left-right direction and the front-rear direction can be formed by aligning the respective scaffolding panels in the left-right direction and the front-rear direction.

Also, the connector may be attachable to and detachable from the fourth scaffolding panel, or may be integrally connected to the fourth scaffolding panel.

Furthermore, in the method for constructing a temporary suspended scaffold according to the present invention, the first connecting member provided on the first scaffolding panel and the second scaffolding panel, and the second connecting member provided on the first scaffolding panel and the third scaffolding panel may protrude outside from the outer contour of the panel body of these scaffolding panels, which have a rectangular overall shape in plan view except for the first connecting member and the second connecting member, or the first Of the connecting member and the second connecting member, only one of the connecting members protrudes outward from the outer contour portion, the other connecting member is provided inside the outer contour portion, and the one connecting member extends from the outer contour portion. The one connecting member and the other connecting member may be connected by being inserted into the interior of the portion.

In the above-described temporary suspended scaffolding, scaffolding panel thereof, and construction method thereof according to the present invention, the number of scaffolding panels removed to form the opening may be one or a plurality.

Further, the rectangular shape of the panel main body of the scaffolding panel and the fourth scaffolding panel whose overall shape in plan view is rectangular except for the first connecting member and the second connecting member may be rectangular, or It can be square. Further, when the rectangular shape is rectangular, the aforementioned connecting members provided on the first scaffolding panel or the like may be provided on the long sides or the short sides. Then, the length direction of the long side portion may be set to one of the left-right direction and the front-to-rear direction, and the length direction of the short side portion may be set to the other direction.

According to the present invention, a temporary suspended scaffold formed by a plurality of scaffolding panels each suspended by a suspension member is provided with an opening vertically penetrating therethrough for passing articles such as building materials and equipment. You can get the effect that it becomes possible.

FIG. 1 is a perspective view showing an overall outline of a temporary suspended scaffolding formed by a plurality of scaffolding panels each suspended by a suspension member. FIG. 2 is an overall schematic plan view of the temporary suspended scaffolding of FIG. 1 with suspension members omitted. Figure 3 is a view similar to Figure 2 showing the temporary suspended scaffolding when the opening is formed; Figure 4 is a plan view showing the first scaffolding panel; FIG. 5 is a plan view showing a second scaffolding panel; Figure 6 is a plan view showing a third scaffolding panel; Figure 7 is a plan view showing a fourth scaffolding panel; Figure 8 is a perspective view of a fourth scaffolding panel; FIG. 9 is a vertical cross-sectional view showing a locking tool for locking the lid member provided on each scaffolding panel so as to be openable and closable when the cover member is closed. FIG. 10 is a front view showing the first connection member provided on the first scaffolding panel and the second scaffolding panel. FIG. 11 is a front view showing a second connection member provided on the first scaffolding panel and the third scaffolding panel. FIG. 12 is a longitudinal sectional view showing a state when the second connecting member is placed on the first connecting member. FIG. 13 is a plan view showing a state in which two first scaffolding panels are arranged adjacent to each other in the horizontal direction with the second connecting member placed on the first connecting member. FIG. 14 is a view showing a connecting tool for connecting two first scaffolding panels, showing a state when two first scaffolding panels arranged adjacent to each other in the left-right direction are connected by this connecting tool. It is a vertical cross-sectional view showing the. FIG. 15 shows two first scaffolding panels arranged in the front-rear direction, a first connector for connecting the first scaffolding panel and the second scaffolding panel, and a first connector for connecting the first scaffolding panel and the third scaffolding panel. Fig. 10 is a vertical cross-sectional view showing a state in which the first scaffolding panels are connected; FIG. 16 is an overall perspective view showing a second connector for connecting the first scaffolding panel and the fourth scaffolding panel. FIG. 17 is a front view of the second connector. FIG. 18 is a plan view of the second connector. FIG. 19 is a front view showing the state of the second coupler at the time of the first actuation. FIG. 20 is a front view showing the state of the second coupler during the second actuation. FIG. 21 is a plan view showing the positional relationship of the second scaffolding panel, the third scaffolding panel, and the fourth scaffolding panel arranged in the horizontal direction. FIG. 22 is a perspective view showing a state in which the first scaffolding panel and the fourth scaffolding panel are connected in the front-rear direction by the second connector. FIG. 23 is an enlarged view showing the state when the fourth scaffolding panel placed between the two first scaffolding panels is connected to these first scaffolding panels by the second connector in the longitudinal direction. It is a longitudinal cross-sectional view. FIG. 24 is a side view showing a state when a plurality of fourth scaffolding panels are vertically stacked. FIG. 25 is a view similar to FIG. 17 showing a second coupler according to another embodiment. Figure 26 is a view similar to Figure 23 showing a second connector according to yet another embodiment;

A mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows a plurality of scaffolding panels each suspended by a suspension member 5 such as a chain and arranged side by side in the horizontal direction, that is, in the left-right direction and in the front-rear direction to form a temporary suspended scaffolding 6. It is shown. These scaffolding panels include a first scaffolding panel 1 , a second scaffolding panel 2 , a third scaffolding panel 3 and a fourth scaffolding panel 4 . FIG. 2 shows a schematic plan view of the entire temporary suspended scaffolding 6 formed by these scaffolding panels 1 to 4, omitting the suspension members 5, and FIG. By removing the three fourth scaffolding panels 4 from the temporary suspended scaffolding 6, the opening 7 that can be used for passing articles such as building materials and equipment into the temporary suspended scaffolding 6 can be opened up and down. A plan view of the overall schematic is shown with the .

FIG. 4 is a plan view of the first scaffolding panel 1, and FIGS. 5-7 show plan views of the second through fourth scaffolding panels 2-4. These first to fourth scaffolding panels 1 to 4 are plan view of the panel body excluding the first connecting member 35 and the second connecting member 36 and the first connector 45 and the second connector 55 which will be described later. The outer contour of the overall shape is a rectangular shape. 1 and 2 when the temporary suspended scaffolding 6 of FIGS. The scaffolding panels 1 to 4 have a rectangular shape with long sides, and the panel bodies of these scaffolding panels 1 to 4 have the same size in plan view. Therefore, in each of the scaffolding panels 1 to 4, the length of the short side and the length of the long side of the outer contour of the overall shape of the scaffolding panels 1 to 4 are the same. Further, these scaffolding panels 1 to 4 have the same thickness in the vertical direction.

For this reason, the temporary suspended scaffolding 6 formed by arranging these scaffolding panels 1 to 4 side by side in the left-right direction and the front-rear direction is aligned with the respective scaffolding panels 1-4 in the left-right direction and the front-rear direction, and It can be formed so as to be aligned in the vertical direction as well.

Since the basic structures of the first to fourth scaffolding panels 1 to 4 are the same, the common structure of the first to fourth scaffolding panels 1 to 4 will now be described with reference to FIGS. 4 to 7. FIG.

The long side portions of the first to fourth scaffolding panels 1 to 4 are formed by long side members 11 and 12 made of two channel materials facing each other with the opening sides facing each other (see also FIG. 9), and FIG. As shown in FIG. 7, short sides forming a right angle with the long sides are provided between both ends in the length direction of these long side members 11 and 12 or between the vicinity of both ends. 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 13. , 14 are joined 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 sides of the scaffolding panels 1 to 4 in the longitudinal direction. .

Incidentally, the horizontal members 13 and 14 having horizontal lengths at the short sides are formed of two round pipes having the same diameter. Reference numerals 13 and 14 are circular cross-sectional members having a circular cross section in a direction perpendicular to the length direction.

The upper surfaces of the long side members 11 and 12 of the scaffolding panels 1 to 4 are covered with a surface member 18 formed of a rectangular metal plate having a length dimension shorter than that of the long side portions of the scaffolding panels 1 to 4. Both ends of the short sides of the surface member 18 in the length direction are joined to the upper surfaces of the long sides 11 and 12 by welding or screws, and both ends of the long sides of the surface member 18 in the length direction The part is a bar-shaped intermediate member 19 made of a channel material or the like fixedly arranged between the long side members 11 and 12 and the bridging member 16 inside the scaffolding panels 1 to 4 rather than the horizontal members 13 and 14. They are connected by welding or screws. As a result, the upper surfaces of the scaffolding panels 1 to 4 on which the surface members 18 are arranged serve as horizontal work surfaces 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 at both ends in the length direction of the long sides of the respective scaffolding panels 1 to 4 are closed. As a result, the openings on both ends of the long sides of the scaffolding panels 1 to 4 that are not covered by the surface member 18 are covered by the lid member 21, and these openings are covered. The lid member 21 is supported from below by end members 17 provided at both ends of the bridging member 16, so that an operator can ride on the lid member 21 to perform work. By increasing the lengthwise dimension of the short side portions of the scaffolding panels 1 to 4 with respect to the lid member 21, the lid member 21 is also supported by the upper surfaces of the long side members 11 and 12 when the lid member 21 is closed. You may enable it to support from the lower side.

Inside the scaffolding panels 1 to 4 exposed when the lid member 21 is opened, there are two holding members 22 on the side of the long side member 11 and two holding members 23 on the side of the long side member 12 as intermediate members. 19, each of which is formed of a square pipe material and arranged at the same position in the longitudinal direction of the long sides of the scaffold panels 1 to 4. A long nut 24 is vertically oriented and welded to the outer surface of each of the lid members 21. Each lid member 21 has a hole 21A for exposing the long nut 24 when the lid members 21 are closed. is formed. Further, the surface member 18 is formed with an elongated hole 18A for exposing the suspension ring member 25 coupled to the bridging member 16 . Further, each lid member 21 is provided with a lock member 26 for locking the lid member 21 when the lid member 21 is closed.

This locking device 26 is shown in FIG. The lock member 26 has a rotatable shaft member 29 penetrating the lid member 21, and one end portion in the longitudinal direction is coupled to both ends of the shaft member 29 on both front and back sides of the lid member 21. It is configured to include individual sandwiching members 30 and 31 . When the shaft member 29 is rotated by operating the clamping member 30 arranged on the front side of the lid member 21, the two clamping members 30 and 31 are also rotated, and these clamping members 30 and 31 By sandwiching the upper flange portions 11A and 12A of the long side members 11 and 12 formed of channel material from above and below, the lid member 21 closed with respect to the long side members 11 and 12 is secured to the lock member 26. is locked by

Of the first to fourth scaffolding panels 1 to 4 shown in FIGS. 1 to 3, two first scaffolding panels 1A and one placed between these first scaffolding panels 1A The third scaffolding panel 3 is a starter panel that is suspended by the suspending member 5 and placed first when the temporary suspended scaffolding 6 is formed. A long nut 24 exposed from a hole 21A of a closed lid member 21 in these starter panels is screwed with a male threaded rod coupled to a clamp 28 for clamping a rod-shaped member 27 made of pipe material. The starter panel is suspended at the installation site of the temporary suspension scaffolding 6 by hanging the suspension member 5 of FIG. Of the first to fourth scaffolding panels 1 to 4 shown in FIGS. 1 to 3, the hanging ring member 25 exposed from the long hole 18A of the surface member 18 of the scaffolding panel excluding the starter panel is also suspended. A hanging member 5 is hung around, whereby the scaffolding panels excluding the starter panel are also hung at the installation site of the temporary hanging scaffolding 6 to form the temporary hanging scaffolding 6. - 特許庁

Further, for each of the scaffold panels 1 to 4, as shown in FIG. 10, the long side members 11 are provided with holes for exposing the ends of the aforementioned holding members 22 made of square pipe material. 11B is formed, and as shown in FIG. 11, the long side member 12 is also formed with a hole 12B for exposing the end of the holding member 23 formed of a square pipe material. .

The unique construction of each of the first through fourth scaffolding panels 1-4 will now be described.

First, the unique structure of the first scaffolding panel 1 shown in FIG. 4 will be described. A first connection member 35 is arranged at a position corresponding to each of them, and a second connection member 35 is provided at a position corresponding to each of the two holding members 23 provided on one long side member 12 side. 36 are arranged. For this reason, two first connection members 35 are provided on one long side of the two parallel long sides of the first scaffolding panel 1, and the other long side The section is provided with two second connecting members 36, so that the first scaffolding panel 1 is a scaffolding panel with connecting members. The arrangement of these first and second connecting members 35, 36 on the first scaffolding panel 1 is such that the first and second connecting members 35, 36 are, as previously described, the first and second connecting members 35, 36 The first scaffolding panel 1, which has a rectangular overall shape in plan view except for , is projected horizontally from the outer contour of the panel body of the first scaffolding panel 1. For this reason, the first connecting member 35 is fixed to the holding member 22 inside the holding member 22, and the base of the second connection member 36 is fixed to the holding member 23 inside the holding member 23, and the first and second connection members The tip sides of 35 and 36 protrude outside from the outer contour of the panel body of the first scaffolding panel 1, which has a rectangular overall shape in plan view except for these connection members 35 and 36. As shown in FIG.

FIG. 10 shows a front view of the first connection member 35 provided on the long-side member 11 by fixing the base to the holding member 22 inside the holding member 22. FIG. As shown, the first connecting member 35 has a V-shaped groove 35A that opens upward at the top. FIG. 11 also shows a front view of the second connection member 36 provided on the long side member 12 by fixing the base to the holding member 23 inside the holding member 23. 11, the second connecting member 36 has a downward V-shaped protrusion 36A at its lower portion.

Therefore, to form the temporary suspended scaffolding 6 of FIGS. 1-3, the two first scaffolding panels 1 suspended by the suspension members 5 of FIG. , when the first scaffolding panels 1 are arranged side by side in the horizontal direction, which is the length direction of the short sides of the first scaffolding panels 1, as shown in FIG. The protrusion 36A of the second connection member 36 provided on the other first scaffolding panel 1 is placed on the groove 35A of the connection member 35 . By bringing these first scaffolding panels 1 closer together, the protrusions 36A of the second connection members 36 are kept placed on the grooves 35A of the first connection members 35, and the second connection members 36 are The front part is inserted into the inside of one of the first scaffolding panels 1, whereby the two first scaffolding panels 1 are arranged adjacent to each other in the left-right direction with no or almost no gap.

As described above, the first and second connecting members 35 and 36 provided on the first scaffolding panel 1 of the present embodiment have an overall shape of Since the rectangular first scaffolding panels 1 protrude outward from the outer contour of the panel main body, as described above, each of the first scaffolding panels 1 is positioned along the short sides of the first scaffolding panels 1. When performing the work of arranging side by side in the left-right direction, which is the length direction, the second connecting member 35 provided on one of the first scaffolding panels 1 is placed on top of the first connection member 35 provided on one of the first scaffolding panels 1 . A connecting member 36 can be placed. As a result, the weight of the other first scaffolding panel 1 can be supported by the one first scaffolding panel 1, so that these first scaffolding panels 1 are adjacent to each other in the left-right direction with little or no gap. Work for arranging can be easily performed.

FIG. 14 shows a connector for connecting the two first scaffolding panels 1 after the two first scaffolding panels 1 are arranged adjacent to each other in the left-right direction with no or almost no gap as described above. 37 are shown. As shown in FIG. 13, the connectors 37 are arranged on the long side members 11 of the first scaffolding panels 1 at locations corresponding to the arrangement locations of the first connection members 35 . 14, the connector 37 is formed of a pivot shaft 38 vertically inserted into a hole 11C formed in the upper flange portion 11A of the long side member 11, and a bolt. In order to prevent the rotation center shaft 38 from slipping out of the hole 11C, a nut 39 screwed onto the lower male screw portion of the rotation center shaft 38 and a screw protruding from the upper flange portion 11A of the long side member 11 are provided. An arm member 40 whose one end in the length direction is joined to the upper part of the dynamic center shaft 38 by welding or the like, and a hole 40A formed in the other end in the length direction of the arm member 40 are fed from above. A bolt 41 that is inserted and whose head 41A is in contact with the upper surface of the arm member 40, and an E-shaped ring or the like that is locked to the bolt 41 to prevent the bolt 41 from slipping out of the hole 40A. The member 42 is included. Therefore, the connector 37 can move vertically with respect to the upper flange portion 11A of the long side member 11 by the distance between the nut 39 and the arm member 40 in the longitudinal direction of the rotation center shaft 38. there is

As described above, the connector 37 before the two first scaffolding panels 1 are arranged adjacent to each other in the left-right direction with little or no gap is rotated around the rotation center shaft 38. , the position of the bolt 41 is away from the first and second connecting members 35 and 36, and is in a rotationally retracted state. When the connector 37 is in this rotationally retracted state, the upper flange portion 11A of the long side member 11 is provided with a hole into which the male threaded shaft portion 41B of the bolt 41 can be inserted. You may enable it to be in the lowered state put on the flange part 11A.

As described above, the protrusion 36A of the second connection member 36 is kept placed on the groove 35A of the first connection member 35, and the tip of the second connection member 36 is moved to the one of the first connection members. After inserting the first scaffolding panel 1 into the interior of the first scaffolding panel 1 and thereby arranging the two first scaffolding panels 1 adjacent to each other in the left-right direction with no or almost no gap, as shown by the two-dot chain line in FIG. Next, the arm member 40 is raised above the long side member 11 to rotate the connector 37 around the rotation center shaft 38 . As a result, after the position of the male threaded shaft portion 41B of the bolt 41 is aligned with the position of the hole 11D formed in the upper flange portion 11A of the long side member 11, the connector 37 is lowered, whereby the male threaded shaft portion 41B is inserted from above into the hole 11D, is also inserted from above into the hole 22A formed in the upper surface of the holding member 22, and further reaches the female screw hole 36B formed in the second connecting member 36. Thereafter, when the bolt 41 is rotated by a tool or the like engaged with the head portion 41A, the male threaded shaft portion 41B is screwed into the female threaded hole 36B.

As a result, the two scaffolding panels 1 arranged adjacent to each other in the left-right direction with no or almost no gap are connected to the second connection member 36 placed on the first connection member 35 and the second connection member 36 placed on the first connection member 35 . A connector 37 provided with a bolt 41 having a male threaded shaft portion 41B screwed into a female threaded hole 36B of 36 is used for connection. Of course, when the bolt 41 is reversely rotated with a tool or the like engaged with the head 41A, the male threaded shaft 41B can escape from the female threaded hole 36B, so that the two scaffolding panels 1 can be separated.

Next, referring to FIG. 5, the unique structure of the second scaffolding panel 2 will be explained. Compared with the first scaffolding panel 1 shown in FIG. Although provided, the second connection member 36 is not provided, and the connector 37 is not provided. 6 to explain the unique structure of the third scaffolding panel 3. Compared to the first scaffolding panel 1, this third scaffolding panel 3 is provided with the second connection member 36, but the first The connection member 35 is not provided, and the connector 37 is not provided. Furthermore, referring to FIG. 7 to explain the unique structure of the fourth scaffolding panel 4, compared to the first scaffolding panel 1, the fourth scaffolding panel 4 has both the first connecting member 35 and the second connecting member 36. It is not provided, and the connector 37 is not provided. Therefore, the fourth scaffolding panel 4 is a scaffolding panel without connecting members, and an overall perspective view of such a fourth scaffolding panel 4 is shown in FIG.

As can be seen from the above description, the first to fourth scaffolding panels 1 to 4 according to this embodiment have the same basic structure except for the first and second connection members 35 and 36 and the connection tool 37. . In addition, as described above, these scaffolding panels 1 to 4 have a rectangular overall shape in plan view with respect to the panel body excluding the first and second connecting members 35 and 36, and this rectangular shape The length dimension of the long side of each scaffolding panel 1-4 is the same, the length of the short side of each scaffolding panel 1-4 is also the same, and the thickness in the vertical direction is the same. Since the scaffolding panels 1 to 4 have the same height dimensions, the first to fourth scaffolding panels 1 to 4 share the long side members 11 and 12 and the horizontal members 13 and 14. can be manufactured in large numbers at low cost.

In FIG. 15, two first scaffolding panels 1 are attached in the longitudinal direction, which is the longitudinal direction of the long sides of these first scaffolding panels 1, to form the temporary suspended scaffolding 6 of FIGS. The state when the first scaffolding panels 1 are arranged side by side and connected by the first connecting member 45 is shown. The first connecting member 45 includes the horizontal member 14 provided on the first scaffolding panel 1 on the front side and the first scaffolding panel 1 on the rear side of the two scaffolding panels 1 arranged side by side in the front-rear direction. More specifically, the first connector 45 is composed of two clamps for clamping and holding the horizontal members 13 and 14. 46 are connected by a connecting member 47 . Each clamp 46 has a first clamping member 48 coupled with a coupling member 47 , and a proximal end rotatably coupled to one end of the first clamping member 48 by a shaft 49 . A bolt 50, a second clamping member 52 whose proximal end is rotatably connected to the other end of the first clamping member 48 by a shaft 51, and a tip end of the second clamping member 52. A nut for clamping the horizontal members 13 and 14 between the first clamping member 48 and the second clamping member 52 by being screwed into the bolt 50 inserted into the formed bifurcated portion and tightened. 53.

A plurality of such first connectors 45 are provided in the longitudinal direction of the short sides of the first scaffolding panel 1 which are in the longitudinal direction of the transverse members 13, 14, for example shown in FIG. Two scaffolding panels 1 are arranged on both sides of the end member 17 of the bridging member 16, thereby connecting the two scaffolding panels 1 arranged side by side in the front-rear direction.

Also, in FIG. 15, when two first scaffolding panels 1 are arranged side by side in the front-rear direction, which is the length direction of the long sides of these first scaffolding panels 1, these first scaffolding panels 1 are placed side by side. Although shown as connected by the first connector 45, the first connector 45 is used to connect the long sides of the respective scaffolding panels to form the temporary suspended scaffolding 6 of FIGS. In order to connect the first scaffolding panel 1 and the second scaffolding panel 2 arranged side by side in the longitudinal direction, and also to connect the first scaffolding panel 1 and the third scaffolding panel 3 is also used. Of course, when the nut 53 of the first connector 45 is loosened, the clamping and holding of the horizontal members 13 and 14 by the first clamping member 48 and the second clamping member 52 of the two clamps 46 is released. Therefore, the two scaffolding panels connected by the first connector 45 can be separated.

In FIG. 16, in order to form the temporary suspended scaffolding 6 of FIGS. An overall perspective view of the second connector 55 for connecting the first scaffolding panel 1 and the fourth scaffolding panel 4 that are adjacently arranged in the longitudinal direction is shown in FIG. A front view is shown, and a plan view of the second connector 55 is shown in FIG.

The second connector 55, which can be attached to and removed from the fourth scaffolding panel 4, has its length dimension oriented along the long sides of the first scaffolding panel 1 and the fourth scaffolding panel 4. Two body members 56 are provided parallel to the length direction of the short sides of the first scaffolding panel 1 and the fourth scaffolding panel 4 . These body members 56 are connected by a bottom member 57 on one side in the length direction of the body members 56, and these body members 56 and bottom members 57 are formed by stamping and bending a metal plate. It is one formed product, and the connecting portion between the main body member 56 and the bottom member 57 is a bent portion. In addition, the side on which the bottom member 57 is provided in the length direction of each main body member 56 is a clamping portion 58 for clamping the horizontal members 13 and 14 of the fourth scaffolding panel 4. Hook portions 59 for engaging and locking the horizontal members 13 and 14 of the first scaffold panel 1 are provided on the opposite sides of the main body members 56 in the length direction of the bottom member 57, respectively. It has become.

The clamping portion 58 of the second connector 55 includes a lower first clamping member 60 formed by two main body members 56 , and a base end portion of the first clamping member 60 on the side of the hook portion 59 that is connected to a shaft 61 . a second clamping member 62 on the upper side vertically rotatably connected to the first clamping member 60; and a nut 65 screwed to a male threaded shaft member 64 inserted into a forked portion 62B formed at the tip of the member 62. The shaft 63 is supported by a bearing member 66 fixed to the bottom member 57. is also supported. As shown in FIG. 17, after inserting the horizontal members 13 and 14 of the fourth scaffolding panel 4 between the first clamping member 60 and the second clamping member 62, the male screw shaft member 64 is By inserting it into the bifurcated portion 62B of the clamping member 62 and tightening the nut 65, the horizontal members 13 and 14 correspond to the outer surface shapes of these horizontal members 13 and 14 formed of round pipe materials. can be clamped and held by curved concave portions 60A and 62A formed in the first clamping member 60 and the second clamping member 62, respectively. Therefore, the clamping portion 58 of the second connecting member 55 also serves as holding means capable of holding the horizontal members 13 and 14 .

The clamping portion 58 for clamping and holding the horizontal members 13 and 14 of the fourth scaffolding panel 4 between the first clamping member 60 and the second clamping member 62 as described above has a bottom surface. A pin 73 projecting upward and fixed to the member 57 is provided. , 14 are inserted into the holes 13A and 14A formed in the lower portions of the horizontal members 13 and 14, and the first clamping member 60 and the second clamping member 62 clamp and hold the horizontal members 13 and 14. ing.

As shown in FIGS. 16 and 17, the hook portion 59 of the second connector 55 is formed by hook members 67 formed by the respective main body members 56 and these hook members 67 with downward openings. A concave portion 67A into which at least a part of the horizontal members 13 and 14 of the scaffolding panel 1 can be fitted, and each formed in a curved shape corresponding to the outer surface shape of these horizontal members 13 and 14. A member for closing part or all of the opening that is the maximum opening width on the lower side of the recess 67A, and for locking the horizontal members 13 and 14 inside the recess 67A , and a lock member 68 provided for each hook member 67 . Each lock member 68 is guided by an elongated hole 68A formed in the lock member 68 in a curved shape and two pins 69, 70 inserted into the elongated hole 68A and fixed to the hook member 67. By this action, the hook member 67 can move freely, and part of the elongated hole 68A has a concave portion into which the lower pin 70 of the two pins 69 and 70 can be inserted. 68B is provided so as to protrude from the long hole 68A to the opposite side of the hook member 67 from the recess 67A. The pins 69 and 70 are provided with large-diameter heads 69A and 70A for preventing slipping out of the long holes 68A and recesses 68B.

For this reason, each lock member 68 is positioned against the hook member 67 between a position for partially or completely closing the opening on the lower side of the recess 67A and a position for opening the entire opening. It is possible to move around.

Further, in this embodiment, each hook member 67 is provided for each hook member 67, and the length direction of the horizontal members 13 and 14, which is the length direction of the short sides of the first scaffolding panel 1 and the fourth scaffolding panel 4, is provided. The two lock members 68 provided at the bottom of the lock members 68 are connected by a bridging member 71 . The two locking members 68 and the bridging member 71 are formed as a single product by punching and bending a metal plate, and the connection portion between the locking member 68 and the bridging member 71 is bent. Department. In order to connect the two locking members 68, the bridge members 13 and 14 provided on the first scaffolding panel 1 and the fourth scaffolding panel 4 have dimensions in the length direction. The member 71 has a vertical direction in the thickness direction and a direction in which the first scaffolding panel 1 and the fourth scaffolding panel 4 are adjacently arranged in the width direction.

Further, the second connector 55 of the present embodiment is provided with connecting means 72 for increasing the strength of the second connector 55 by connecting the two main body members 56 at the ends on the hook portion 59 side. The connecting means 72 is screwed to a bolt 72A having a shaft portion inserted into a hole formed in two main body members 56 and to an end portion of the shaft portion protruding from the hole of one of the main body members 56. It comprises a nut 72B (see FIG. 18) and a cylindrical space member 72C inserted between the two body members 56 and fitted around the outer circumference of the shaft of the bolt 72A. ing.

FIGS. 19 and 20 show the first actuation state and the second actuation state when the lock member 68 is floated relative to the hook member 67 by operating the lock member 68. FIG. . 19, of the two pins 69 and 70, the pin 69 is inserted into the curved elongated hole 68A, and the pin 70 is inserted into the concave portion 68B. The lower part of the lock member 68 provided closes half or approximately half of the opening on the lower side of the recess 67A formed in the hook member 67, thereby allowing the second connector 55 to It can be placed on the transverse members 13, 14 of the first scaffolding panel 1. When the lock member 68 is operated after this, the lock member 68 is brought into the state of the second actuation shown in FIG. Therefore, the locking member 68 and the bridging member 71 open the entire lower opening of the recess 67A. can be fitted inside the recess 67A of the hook member 67. As shown in FIG. Thereafter, the lock member 68 descends while rotating while maintaining the state in which the two pins 69 and 70 are inserted into the curved elongated holes 68A by its own weight and the weight of the bridging member 71. Therefore, the state shown in FIG. 17 is obtained.

At this time, the lower opening of the recess 67A formed in the hook member 67 is partially blocked by the lower portion of the lock member 68 in which the bridging member 71 is provided. The horizontal members 13 and 14 are locked by the lock member 68 inside the concave portion 67A of the hook member 67. As shown in FIG. Therefore, the hook portion 59 of the second connecting member 55 also serves as holding means capable of holding the horizontal members 13 and 14 in the same manner as the clamping portion 58 described above.

For this reason, the second connector 55 of the present embodiment for connecting the first scaffolding panel 1 and the fourth scaffolding panel 4 which are arranged adjacent to each other in the front-rear direction, which is the horizontal direction, includes the first scaffolding panel 1 and the fourth scaffolding panel 4 . Two holding means capable of holding the horizontal members 13 and 14 which are provided on the fourth scaffolding panel 4 so that the longitudinal direction thereof extends in the left-right direction of the horizontal direction are a clamping portion 58 and a hook portion 59. is set as

The hook portion 59 of the second connector 55 of the present embodiment is configured such that the lock member 68 is movably arranged on each of the two hook members 67 provided. are connected by the bridging member 71, when one of the two locking members 68 is operated, the other locking member 68 is interlocked and moves freely. Manipulation of the member 68 can be easily performed. A bridging member for obtaining such a function and effect may extend over the upper side of the main body member 56 and connect the upper portions of the two locking members 68 .

21 shows the positional relationship of the arrangement of the second to fourth scaffolding panels 2 to 4 out of the first to fourth scaffolding panels 1 to 4 for forming the temporary suspended scaffolding 6 of FIGS. 1 and 2. The first to fourth scaffolding panels 1 to 4 shown in FIGS. 1 and 2 including these second to fourth scaffolding panels 2 to 4 are arranged as shown in FIGS. By doing so, the temporary suspended scaffolding 6 is formed. In order to form this temporary suspended scaffolding 6, the work of connecting the first scaffolding panel 1A and the third scaffolding panel 3, which are the starter panels described above, with the first connector 45 as described later, and a work of connecting a plurality of first scaffolding panels 1 arranged side by side in the left-right direction, which is the length direction of the short side of the scaffolding panel, by the first connecting member 35, the second connecting member 36, and the connector 37; , the fourth scaffolding panel 4 is connected to the first scaffolding panel 1 arranged on both front and rear sides of the fourth scaffolding panel 4 in the longitudinal direction, which is the length direction of the long side of each scaffolding panel. and the first scaffolding panel 1 and the second scaffolding panel 2 arranged on the opposite side of the fourth scaffolding panel 4 from the first scaffolding panel 1A and the third scaffolding panel 3, which are the starter panels. and are connected by the first connector 45 .

The above work will be described in detail next. In this embodiment, the scaffolding panel without the connecting members described above for forming the opening 7 in FIG. 3 in the temporary suspended scaffolding 6 in FIGS. A total of three 4-scaffolding panels 4 are used. These fourth scaffolding panels 4 are arranged side by side in the horizontal direction, which is the length direction of the short sides of the fourth scaffolding panels 4, and the length of the short sides of the three fourth scaffolding panels 4 The second scaffolding panel 2 and the third scaffolding panel 3 are arranged on both sides in the direction, and this arrangement operation is performed by placing the first connection member 35 provided on the second scaffolding panel 2 on the fourth scaffolding panel 4 side. This is done to the opposite side and to the second connecting member 36 provided on the third scaffolding panel 3 to the side opposite to the fourth scaffolding panel 4 side. As a result, the second to fourth scaffolding panels 2 to 4 arranged in the horizontal direction are arranged with three fourth scaffolding panels 4 interposed between the second scaffolding panel 2 and the third scaffolding panel 3. These second to fourth scaffolding panels 2 to 4 are suspended by the suspension members 5 shown in FIG. be done.

Further, for each of the fourth scaffolding panels 4, on both front and rear sides of the fourth scaffolding panel 4 in the front-rear direction which is the length direction of the long side of the fourth scaffolding panel 4, as shown in FIG. In addition, two first scaffolding panels 1 are arranged on both front and rear sides of one third scaffolding panel 3, and one second scaffolding panel is arranged. Two first scaffolding panels 1 are also arranged on both sides of the panel 2 in the front-rear direction. The first scaffolding panels 1 arranged side by side in the horizontal direction, which is the length direction of the short side of each scaffolding panel, are connected by a first connection member 35, a second connection member 36, and a connector 37, In addition, the first scaffolding panel 1 and the second scaffolding panel 2, and the first scaffolding panel 1 and the third scaffolding panel 3, which are arranged side by side in the front-rear direction, are connected by the first connector 45 shown in FIG. , the first scaffolding panel 1 and the fourth scaffolding panel 4 arranged side by side in the longitudinal direction are connected as shown in FIG. 22 by the second connecting member 55 shown in FIG.

Connecting the first scaffolding panel 1 and the fourth scaffolding panel 4 by means of the second connector 55 is the long side of the fourth scaffolding panel 4 as shown in FIGS. 7, 8 and 21. Two second connectors 55 are arranged on each of the horizontal members 13 and 14 provided at both ends in the length direction or at locations near both ends, and these second connectors 55 are horizontally mounted. The arrangement of the members 13 and 14 is such that the horizontal members 13 and 14 of the fourth scaffolding panel 4 are clamped and held by the clamping portions 58 of the respective second connectors 55 as shown in FIG. At the same time, the hook portion 59 of the second connector 55 on the front side arranged on the horizontal member 13 is attached to the front side of the two first scaffolding panels 1 arranged on both front and rear sides of the fourth scaffolding panel 4. The horizontal member 14 of the arranged first scaffolding panel 1 is locked by the locking member 68, and the fourth scaffolding panel 4 is attached to the hook portion 59 of the second connector 55 on the rear side arranged on the horizontal member 14. The horizontal members 13 of the first scaffolding panel 1 arranged on the rear side of the two first scaffolding panels 1 arranged on both the front and rear sides of the are locked by the locking member 68 .

In addition, as described above, two second connectors 55 are arranged on each of the horizontal members 13 and 14 of the fourth scaffolding panel 4, and these second connectors 55 are connected to the horizontal members 13 and 14. When the horizontal members 13 and 14 of the fourth scaffolding panel 4 are sandwiched and held by the sandwiching portions 58 of the respective second connectors 55 as shown in FIG. Pins 73 are erected on the clamping portions 58 of the respective second connectors 55, and these pins 73 are inserted into the holes 13A formed in the lower portions of the horizontal members 13, 14 of the fourth scaffolding panel 4. , 14A, the horizontal members 13 and 14 are circular in cross-section in the direction orthogonal to the length direction of the horizontal members 13 and 14, as described above. Even if it is made of a pipe material, each second connector 55 is sandwiched and held by the sandwiching portion 58 by the rotation preventing means 75 formed by the pin 73 and the holes 13A and 14A. Vertical rotation about 13 and 14 is prevented.

Note that the rotation preventing means 75 formed by the pin 73 provided on the second connecting member 55 and the holes 13A and 14A provided in the horizontal members 13 and 14 of the fourth scaffolding panel 4 is the second connecting member. The clamping portion 58 which is one of the two holding means provided on the tool 55 as described above, and the holding portion 58 which is provided as a circular cross-sectional member on the fourth scaffolding panel 4 as described above. It also serves as a concave-convex fitting means for concave-convex fitting of the horizontal members 13 and 14 that are in contact with each other. The pin 73 is provided in the lower first sandwiching member 60 constituting the sandwiching portion 58 as a convex portion of the concave-convex fitting means, and the convex portions are fitted in the holes 13A and 14A. For this reason, recesses provided in the concave-convex fitting means are provided in the lower portions of the horizontal members 13 and 14, which are circular members in cross section. Then, after rotating the upper second clamping member 62 constituting the clamping portion 58 with respect to the lower first clamping member 60 around the shaft 61 , it is screwed to the male screw shaft member 64 . By tightening the nut 65, the pins 73 and the holes 13A and 14A are securely fitted to each other, and the horizontal members 13 and 14 can be clamped and held by the clamping portions 58. FIG.

As can be seen from the above description, unlike the first scaffolding panel 1, the second scaffolding panel 2 and the third scaffolding panel 4 are arranged adjacent to each other in the length direction of the short side of the fourth scaffolding panel 4. Even if the first and second connecting members 35 and 36 connected to the panel 3 are not provided, the fourth scaffolding panel 4 may be pushed by the weight of the worker or the like placed on the fourth scaffolding panel 4 . Rotational movement that causes a vertical step between the scaffolding panel 1 and the scaffolding panel 1 can be prevented by the rotation prevention means 75, which is the above-described concave-convex fitting means.

In addition, when the locking member 68 that locks the horizontal members 13 and 14 of the first scaffolding panel 1 is operated in the hook portion 59 of the second connecting member 55 to release the locked state, the second 4 scaffolding panel 4 can be separated from first scaffolding panel 1 by a second connector 55 . Moreover, when this separation is performed, the fourth scaffolding panel 4 is separated from the second scaffolding panel 2 and the third scaffolding panel 3 which are arranged adjacent to each other in the length direction of the short side of the fourth scaffolding panel 4 as described above. Since the first and second connecting members 35 and 36 to be connected are not provided, the work for removing the fourth scaffolding panel 4 from the temporary suspended scaffolding 6 of FIGS. It can be carried out without being affected by the connection members 35 and 36. Therefore, by performing this removal work of the fourth scaffolding panel 4, the opening 7 shown in FIG. Through this opening 7, it is possible to carry out work such as lifting building materials and articles such as equipment from the ground to the temporary suspended scaffold 6 and lowering them from the temporary suspended scaffold 6 to the ground. Become.

In addition, the fourth scaffolding panel 4 removed from the temporary suspended scaffolding 6 is lowered from the top to the bottom at the opening 7, and the fourth scaffolding panel 4 is attached to the first scaffolding panel 1 again by the second connector 55. By connecting, the opening 7 can be closed by the fourth scaffolding panel 4 .

As shown in FIG. 23, in the fourth scaffolding panel 4, the horizontal members 13 and 14 are disposed on the fourth scaffolding panel 4 such that the lower portions of the horizontal members 13 and 14 protrude downward from the lower ends of the long side members 11 and 12. It is In order to connect both ends of the horizontal members 13 and 14 to the long side members 11 and 12, end members 15 provided at both ends of the horizontal members 13 and 14 have round pipes on their upper surfaces. A curved concave portion 15A corresponding to the outer surface shape of the horizontal members 13 and 14 formed of a material is provided. Such a configuration is also common to the first to third scaffolding panels 1-3, as can be seen from FIG. 15 where the first scaffolding panel 1 is shown.

The fourth scaffolding panel 4 of the present embodiment, as shown in FIGS. Two second connectors 55 that can be attached and detached are attached in advance and transported to the work site where the temporary suspended scaffolding 6 of FIG. 1 is to be constructed. In this way, the operation of pre-attaching the two second connectors 55 to each of the horizontal members 13 and 14 of the fourth scaffolding panel 4 is performed, for example, at a place where various members for temporary scaffolding are stored. The horizontal members 13 and 14 are sandwiched and held by the clamping portion 58 of the second connector 55 of the second connector 55. Since the erected pin 73 is inserted into the holes 13A and 14A formed in the lower portions of the horizontal members 13 and 14, the rotation preventing means 75 formed by the pin 73 and the holes 13A and 14A prevents the rotation of the respective members. The second connector 55 is attached to the horizontal members 13 and 14 of the fourth scaffolding panel 4 while maintaining a parallel or substantially parallel posture with respect to the fourth scaffolding panel 4. .

Therefore, at the work site for constructing the temporary suspended scaffolding 6 of FIG. It will be lowered by the lowering operation by the hanging member 5 while maintaining a parallel state or a substantially parallel state with respect to the panel 4 . The operation of connecting with the fourth scaffolding panel 4 is performed by operating the locking members 68 of the horizontal members 13 and 14 of the first scaffolding panel 1 at the hooks 59 where the locking members 68 of the second connector 55 are arranged. This can be done by performing only the operation of setting the locked state, so that this operation can be easily performed in a short time.

At the work site where the temporary suspended scaffolding 6 is constructed, the second connector 55 is integrated with the fourth scaffolding panel 4 suspended by the suspension member 5 as described above, and the fourth scaffolding panel 4 is Since the lock member 68 is in the state of the first actuation shown in FIG. Each second link 55 pre-attached to the transverse members 13, 14 of the fourth scaffolding panel 4 rides over the transverse members 13, 14 of the first scaffolding panel 1, after which they are mounted as previously described. When the lock member 68 is operated to the fourth position, the lock member 68 is brought into the second actuation state shown in FIG. 20, and then into the state shown in FIG. By lowering the scaffolding panel 4 together, the horizontal members 13 and 14 of the first scaffolding panel 1 can be automatically locked by the hook portion 59 of the second connector 55 .

Moreover, as described above, in order to form the opening 7 in FIG. The locking state of the horizontal members 13 and 14 of the first scaffolding panel 1 is released by operating the lock member 68, and the second connector 55 is lifted by the lifting operation of the hanging member 5 to lift the fourth scaffolding panel. 4 and removed from the temporary suspended scaffolding 6. Therefore, this work can be easily performed in a short time.

Furthermore, after this, the work for closing the opening 7 again with the fourth scaffolding panel 4 is also performed by lowering the second connector 55 with the fourth scaffolding panel 4 by lowering the hanging member 5, and This work can also be done easily in a short time.

3 is formed in the temporary suspended scaffolding 6 by removing the fourth scaffolding panel 4 as described above, the handrails surrounding all or part of the opening 7 are placed in the first to third The temporary scaffolding panel 6 may be installed using the elongated nuts 24 of FIGS. 4-6 provided on the scaffolding panels 1-3. Such handrails, for example, are provided with a plurality of columns of scaffolding panels 1 to 3, each of which has a male threaded rod screwed to a nut 24 at its lower end. It can be formed by bridging a shaped member, a bar-shaped member, or a panel.

As described above, the second connector 55 is attached in advance to the horizontal members 13 and 14 of the fourth scaffolding panel 4, and thus the second connector 55 is attached to the horizontal members 13 and 14 in advance. When the fourth scaffolding panel 4 is transported to the construction work site of the temporary suspended scaffolding 6 shown in FIGS. 1 and 2 by a transportation vehicle, as shown in FIG. Since the panels 4 are transported in a vertically stacked state with the lid member 21 described above opened or closed, a plurality of fourth scaffolding panels 4 are vertically stacked. It is required to reduce the vertical dimension of the entire stacked structure.

By the way, the arrangement positions of the horizontal members 13 and 14 in the height direction on each of the fourth scaffolding panels 4 are such that the lower portions of the horizontal members 13 and 14 are positioned above the long side members 11 and 12, as described with reference to FIG. It protrudes downward from the lower end. However, round pipes are provided on the upper surfaces of end members 15 provided at both ends of the horizontal members 13 and 14 in order to connect both ends of the horizontal members 13 and 14 to the long side members 11 and 12. A curved concave portion 15A corresponding to the outer surface shape of the horizontal members 13 and 14 formed of a material is provided. Therefore, when stacking a plurality of fourth scaffolding panels 4 vertically, each fourth scaffolding panel 4 should be stacked upside down as shown in FIG. As a result, a part of the horizontal members 13 and 14 of the lower fourth scaffolding panel 4 can be fitted into the recess 15A formed in the upper surface of the end member 15 of the upper fourth scaffolding panel 4, thereby , the overall vertical dimension of the stacked structure in which the plurality of fourth scaffolding panels 4 are vertically stacked can be reduced.

FIG. 23 also shows the second connector 55 when connecting the first scaffolding panel 1 and the fourth scaffolding panel 4 by being attached to the horizontal members 13 and 14 of the fourth scaffolding panel 4. The height position at the fourth scaffolding panel 4 is shown, and the second connector 55 at this time and the horizontal members 13 and 14 of the fourth scaffolding panel 4 are attached in advance, and the first scaffolding panel 1 and the fourth scaffolding panel 4, the second connector 55 is kept parallel or substantially parallel to the fourth scaffolding panel 4 by the rotation preventing means 75 described above. ing. The height dimension of the fourth scaffolding panel 4 is H1, the height dimension of the second connector 55 including the male screw shaft member 64 is H2, and the second connector 55 when attached to the fourth scaffolding panel 4 Since the height position of the upper end is lower than the upper end of the fourth scaffolding panel 4, the lower end of the second connector 55 protrudes downward from the lower end of the fourth scaffolding panel 4 by the vertical dimension H3. ing.

Considering such a height position of the second connector 55 in the fourth scaffolding panel 4, the fourth scaffolding panel 4 according to the present embodiment has the horizontal member 13 as shown in FIG. The arrangement positions of the two second connectors 55 are arranged by the dimensions W1 and W2 in the left-right direction from the center position N in the left-right direction, which is the length direction of the short side of the fourth scaffolding panel 4. Also, the position of the two second connectors 55 arranged on the horizontal member 14 is also the dimension W1 in the left-right direction from the position N at the center of the fourth scaffolding panel 4 in the left-right direction. The position is shifted by the dimension W2. Then, as shown in FIG. 7, of the four second connectors 55 arranged on the fourth scaffolding panel 4, two of the second connectors 55 arranged near one of the long side members 11 are The arrangement positions of the second connectors 55 are the same in the left-right direction, and the arrangement positions of the two second connectors 55 arranged near the other long side member 12 are also the same in the left-right direction. The second couplers 55, which are in the same position and are arranged two by two on each of the horizontal members 13 and 14, are arranged on both sides of the position N of the center portion in the left-right direction.

The arrangement position of the second connecting member 55 on the horizontal members 13 and 14 is such that the horizontal member 13, 14 and the pin 73 provided on the second connecting member 55 constitute the rotation preventing means 75 described above. The positions of the holes 13A and 14A provided in 14 can be set depending on which positions in the longitudinal direction of these horizontal members 13 and 14 are provided.

The dimension W1 and the dimension W2 described above in this embodiment are the length direction of the long side of the fourth scaffolding panel 4 without changing the front and back of the fourth scaffolding panel 4 . When the front-rear direction is reversed, the arrangement positions of the four second connectors 55 are not the same as the arrangement positions of the four second connectors 55 before the change. is set.

For this reason, as shown in FIG. 24, when stacking a plurality of fourth scaffolding panels 4 vertically, two vertically adjacent fourth scaffolding panels 4 are arranged in the front-rear direction in the front-rear direction. When these fourth scaffolding panels 4 are stacked in opposite directions, two vertically adjacent fourth scaffolding panels 4 are attached in advance to these fourth scaffolding panels 4 as described above. Even if each of the second connectors 55 protrudes from the fourth scaffolding panel 4 by the vertical dimension H3, the second connectors 55 on the fourth scaffolding panel 4 are displaced in the horizontal direction. As a result, they do not interfere with each other, so that the overall vertical dimension of the stacked structure in which the plurality of fourth scaffolding panels 4 are vertically stacked can be reduced without being affected by the vertical dimension H3. can do.

In addition, in each of the vertically stacked fourth scaffolding panels 4, each of the second connectors 55 is arranged in a parallel or substantially parallel state with respect to the fourth scaffolding panel 4 by the above-described rotation prevention means 75. is maintained, the overall vertical dimension of the stacked structure can be reduced in this respect as well.

FIG. 25 shows a second connector 155 according to another embodiment. In order to form the hook portion 59 in this second connector 155 as well, a lock member 168 is provided for each of the two hook members 67, and these lock members 168 are arranged below the lock member 168 as follows: Connected by a spanning member 171, the spanning member 171 having the longitudinal dimension of the transverse members 13, 14 provided on the first scaffolding panel 1 and the fourth scaffolding panel 4. The thickness direction is the direction in which the first scaffolding panel 1 and the fourth scaffolding panel 4 are adjacently arranged, and the width direction is the vertical direction. The two locking members 168 and the bridging member 171 are formed as a single product by punching and bending a metal plate, and the connecting portion between the locking member 168 and the bridging member 171 is the bent portion. It has become.

According to the second connector 55 of this embodiment, when the lock member 168 closes at least a part of the lower opening of the recess 67A of the hook member 67 into which the horizontal members 13 and 14 are fitted, the hanging members 13 and 14 are fitted. The upper end of the bridging member 171 can be brought into contact with the horizontal members 13 and 14, and the bridging member 171 is provided on the first scaffolding panel 1 and the fourth scaffolding panel 4. , 14 in the longitudinal direction, the lock member 168 makes the locking and locking state of the horizontal members 13 and 14 stronger than that of the second connector 55 of the above-described embodiment. can be realized.

It should be noted that the second connectors 55 and 155 without the pins 73 described above can be used instead of the first connectors 45 in places where the first connectors 45 are used to form the temporary suspended scaffolding 6. Also, of the two clamps 46 constituting the first connector 45 of FIG. One connector may be used in place of the second connector 55,155 where the second connector 55,155 is used.

FIG. 26 shows a second connector 255 according to yet another embodiment. This second connector 255 is also similar to the second connector 55 shown in FIG. is formed, and has a hook member 67 for locking the horizontal members 13 and 14 together with the lock member 68. In the second connector 255 of this embodiment, the hook member The hook portion 59 for 67 is formed on the main body member 256 whose longitudinal direction is the longitudinal direction of the long side portion of the fourth scaffolding panel 4 . Two body members 256 are provided parallel to the length direction of the short side of the fourth scaffolding panel 4, and these body members 256 are connected to each other by a bottom member 257. 256 and the bottom member 257 are a single product formed by punching and bending a metal plate, and the connecting portion between the main body member 256 and the bottom member 257 is the bent portion.

Each main body member 256 is provided with holes 256A through which the horizontal members 13 and 14 of the fourth scaffolding panel 4 pass, and the horizontal members 13 and 14 are welded to these holes 256A. ing. Therefore, the second connector 255 of this embodiment is integrally connected to the fourth scaffolding panel 4 .

As can be seen from this embodiment, the fourth scaffolding panel 4, which is connected to the first scaffolding panel 1 by the second connector, is manufactured in the factory with the second connector 255 being part of the fourth scaffolding panel 4. may be

Since the fourth scaffolding panel 4 according to this embodiment is integrated with the second connector 255, the plan view of the fourth scaffolding panel 4 excluding the second connector 255 is has the same shape and size as the panel main body of the first to third scaffolding panels 1 to 3 excluding the first connecting member 35, the second connecting member 36, and the first connector 45. .

16 and the like, the second connector 55 is attached to and detached from the horizontal members 13 and 14 of the fourth scaffolding panel 4. The clamping portion 58 for clamping the horizontal members 13 and 14 between the member 60 and the second clamping member 62 was provided. It is attached to the mounting member fixed to the members 13 and 14 by welding or the like with fasteners such as bolts and nuts, and can be removed from the horizontal members 13 and 14 by removing the fasteners. It may be set to

INDUSTRIAL APPLICABILITY The present invention can be used for a temporary suspension scaffold formed by a plurality of scaffolding panels suspended by suspension members for repair, inspection work, etc. of bridges such as highways and buildings.

1 first scaffolding panel which is a scaffolding panel with connecting member 2 second scaffolding panel 3 third scaffolding panel 4 fourth scaffolding panel which is a scaffolding panel without connecting member 5 hanging member 6 temporary hanging scaffolding 7 vertically penetrating temporary hanging scaffolding 11, 12 long side members forming the long sides of the scaffold panel 13, 14 transverse members extending in the length direction of the short sides of the scaffold panel 35 first connecting member 36 Second connecting member 37 Connecting tool 45 First connecting tool 55, 155, 255 Second connecting tool

Claims (12)

A temporary suspended scaffold formed by arranging a plurality of scaffolding panels, each suspended by a suspension member, side by side in the left-right direction and the front-rear direction,
In order to connect two scaffolding panels arranged adjacently in one of the left-right direction and the front-rear direction, the plurality of scaffolding panels are provided with two side portions parallel to each other. Among them, a plurality of scaffolding panels with connection members provided with a first connection member on one side and a second connection member connectable to the first connection member on the other side In addition, at least one of the first connecting member and the second connecting member has a rectangular overall shape in plan view when the first connecting member and the second connecting member are excluded. In the temporary suspended scaffold projecting to the outside from the outer contour portion of the panel body of the scaffold panel with connection members,
The plurality of scaffolding panels with connecting members are first scaffolding panels, and at least one scaffolding panel provided with these first scaffolding panels and the first connecting member and not provided with the second connecting member at least one third scaffolding panel not provided with said first connecting member but provided with said second connecting member; said first connecting member and said second connecting member said second scaffolding panel and said third scaffolding panel arranged in said one direction; The fourth scaffolding panel arranged between and is separably connected to the first scaffolding panel arranged adjacently in the other of the left-right direction and the front-rear direction by a connector, and this separation A temporary suspended scaffolding characterized in that the fourth scaffolding panel is detachable by means of the removal, and an opening penetrating vertically is formed by this detachment. 2. The temporary suspended scaffolding according to claim 1, wherein the size of the fourth scaffolding panel, which has a rectangular overall shape in plan view, is equal to the size of the first connection member in plan view, excluding the connector. It is the same as the panel main body of the first scaffolding panel excluding the second connecting member, the second scaffolding panel excluding the first connecting member, and the third scaffolding panel excluding the second connecting member A temporary suspended scaffold characterized by a 3. The temporary suspended scaffolding according to claim 1, wherein said connector is attachable to and detachable from said fourth scaffolding panel. 3. The temporary suspended scaffold according to claim 1, wherein said connector is integrally connected to said fourth scaffold panel. The temporary suspended scaffolding according to any one of claims 1 to 4, wherein the first connecting member provided on the first scaffolding panel and the second scaffolding panel, and the first scaffolding panel and the third scaffolding panel A temporary suspended scaffolding, wherein the second connection member provided in the above protrudes outside from the outer contour portion. A temporary suspended scaffolding construction method for forming a temporary suspended scaffold by arranging a plurality of scaffolding panels each suspended by a suspension member side by side in the left-right direction and the front-rear direction,
In order to connect two scaffolding panels that are adjacently arranged in one of the left-right direction and the front-rear direction, the scaffolding panel has two side portions that are parallel to each other. A first connection member is provided on one side of the scaffolding panel with a connection member, and a second connection member that is connectable to the first connection member is provided on the other side of the scaffold panel, and the first At least one of the connecting member and the second connecting member has a rectangular overall shape in plan view when the first connecting member and the second connecting member are excluded. A plurality of first scaffolding panels protruding outward from the outer contour of the panel body of the panel; a scaffolding panel, at least one third scaffolding panel not provided with said first connection member and provided with said second connection member, and both said first connection member and said second connection member; at least one fourth scaffolding panel being a free connecting member scaffolding panel;
The first scaffolding panels that are adjacently arranged in one of the left-right direction and the front-rear direction are connected to each other by the first connecting member and the second connecting member, The second scaffolding panel, the third scaffolding panel, and the fourth scaffolding panel are arranged with the fourth scaffolding panel between the second scaffolding panel and the third scaffolding panel, and the left-right direction and the front-back direction are arranged. Among them, a first work step that is performed to connect the scaffolding panels that are adjacently arranged in the other direction with a connector;
By removing the fourth scaffolding panel that is separably connected to the first scaffolding panel in the other direction by the connector, an opening penetrating vertically through the temporary suspended scaffolding is formed. a second work step to
A method for constructing a temporary suspended scaffold, comprising: 7. The temporary suspended scaffolding construction method according to claim 6 , wherein the connector for connecting the first scaffolding panel and the fourth scaffolding panel in the other direction is subjected to the first work step. Previously attached to the fourth scaffold panel in advance, at the construction site of the temporary hanging scaffold, by lowering the fourth scaffold panel to which the connector is attached, the connector is used to move the fourth scaffold panel A method for constructing a temporary suspended scaffolding, characterized by connecting the first scaffolding panel and the fourth scaffolding panel in the other direction. 8. The method for constructing a temporary suspended scaffolding according to claim 6 or 7 , wherein after the second work step is performed, the fourth scaffolding panel is lowered from above to the first scaffolding panel by the connector. A method for constructing a temporary suspended scaffolding, wherein the fourth scaffolding panel is connected in the other direction. The construction method for a temporary suspended scaffold according to any one of claims 6 to 8 , wherein the size of the fourth scaffolding panel in plan view, the overall shape of which is rectangular in plan view excluding the connector. However, the first scaffolding panel excluding the first connecting member and the second connecting member, the second scaffolding panel excluding the first connecting member, and the third scaffolding panel excluding the second connecting member A method for constructing a temporary suspended scaffolding, characterized in that it is the same as the panel body of. The method for constructing a temporary suspended scaffold according to any one of claims 6 to 9 , wherein the connector is attachable to and detachable from the fourth scaffold panel. Method. 7. The method of constructing a temporary suspended scaffolding according to claim 6 , wherein said connector is integrally connected to said fourth scaffolding panel. The method for constructing a temporary suspended scaffold according to any one of claims 6 to 11 , wherein the first connecting member provided on the first scaffolding panel and the second scaffolding panel, and the first scaffolding panel and the second scaffolding panel. 3. A method of constructing a temporary suspended scaffolding, wherein the second connecting member provided on the scaffolding panel protrudes outward from the outer contour portion.

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