Temporary floor frame connecting hardware, frame body and temporary floor

Abstract

To provide a frame joint metal of a temporary floor, a frame body and a temporary floor which can improve strength while reducing cost.SOLUTION: A frame joint metal 30 of a temporary floor 1 is used for joining a first frame 11 and a second frame 12 for supporting a floor plate 50 of the temporary floor 1. The frame joint metal 30 includes: a receiving part 31 for supporting one end 11a in a length direction of the first frame 11 from below; a first fixing part fixed to a side face in a width direction of the second frame 12; a second fixing part 33 fixed to the side face in the width direction of the second frame 12; and a support part 34 for connecting the receiving part 31 and the second fixing part 33, and supporting a reinforcement plate 53 of the floor plate 50 from below.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to a frame joint metal fitting for a temporary floor, a frame body, and a temporary floor, and more particularly to a frame joint metal fitting for a temporary floor used for joining a first frame and a second frame that support a floor board of the temporary floor, a frame body having the frame joint metal fitting, and a temporary floor having the frame body.

Background Art

[0002] Conventionally, a temporary staircase has been installed between the upper and lower floors of a building under construction and has been used for the vertical movement of workers between the upper and lower floors. An opening for raising and lowering the temporary staircase is formed in the temporary floor on the upper floor, and a floor board-cum-opening / closing lid is attached to the opening for raising and lowering. By closing the opening / closing lid except during raising and lowering to cover the opening for raising and lowering, it is possible to prevent workers from accidentally falling through the opening for raising and lowering. Also, by using the closed opening / closing lid as a floor board, workers can safely move back and forth on the scaffolding passage.

[0003] The frame body of the temporary floor described in Patent Document 1 includes a frame-shaped frame in which a pair of first frames and a pair of second frames are joined in a frame shape, and a floor board attached to the frame-shaped frame. The pair of first frames and the pair of second frames form the frame-shaped frame by being fixed by welding.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The frame body of the temporary floor as in Patent Document 1 was assembled in a frame shape by welding aluminum square pipes. However, since welding requires labor and time, there was a risk that the manufacturing cost of the temporary floor would increase. Furthermore, in order to safely use the closed opening / closing lid as a floorboard, it was necessary to further improve the strength of the frame-like structure that supports the floorboard.

[0006] The present invention has been made in view of the above problems, and the object of the present invention is to provide a frame connecting hardware for a temporary floor, a frame body, and a temporary floor that can improve strength while reducing costs. [Means for solving the problem]

[0007] The aforementioned problems are solved by the temporary floor frame joining hardware of the present invention, which is used to join a first frame and a second frame that constitute a frame of a temporary floor and support the floorboards of the temporary floor, and which joins the first frame and the second frame with the longitudinal side surface of the first frame and the widthwise side surface of the second frame in contact with each other, and comprises a receiving portion provided along the longitudinal direction of the first frame and supporting one end of the longitudinal direction of the first frame from below, a first fixing portion provided on one side in the width direction of the receiving portion and fixed to the widthwise side surface of the second frame, a second fixing portion provided on the other side in the width direction of the receiving portion and fixed to the widthwise side surface of the second frame, and a support portion provided on the other side in the width direction of the receiving portion, connecting the receiving portion and the second fixing portion and supporting a part of the floorboards.

[0008] With the above configuration, the first frame, which serves as the reinforcing frame, and the second frame, which serves as the frame-shaped frame, are fixed together by screws using the first and second fixing parts. This eliminates the need for welding during the manufacturing of the frame body, and allows the reinforcing frame to be positioned perpendicular to the frame-shaped frame. Therefore, it is possible to improve strength while reducing the manufacturing cost of the frame body. Furthermore, by providing a support section that supports a portion of the floorboard between the receiving section that supports the first frame, which serves as a reinforcing frame, and the fixing section that secures the second frame, which serves as a frame-shaped frame, the force supporting the floorboard is improved when it is placed on the upper surface of the frame, thereby improving the strength of the temporary floor.

[0009] In this case, the receiving portion comprises a bottom plate on which the bottom surface of the first frame rests, and a pair of side plates that rise from both ends of the bottom plate and support the first frame from the side. The first fixing portion is bent from the end of one of the side plates on the second frame side and extends to one side in the longitudinal direction of the second frame, the support portion is bent from the upper end of the other side plate and extends to the other side in the longitudinal direction of the second frame, and the second fixing portion is bent from the end of the support portion on the second frame side and extends downward. With the above configuration, the support force of the receiving part on the first frame is improved, while the first and second frames can be firmly joined. Furthermore, since the frame joining hardware can be formed by press-forming a single sheet of metal, manufacturing costs can be reduced.

[0010] Furthermore, in a frame body equipped with the frame joining hardware for the temporary floor described above, the frame body comprises a rectangular tubular first frame, a pair of rectangular tubular second frames, a pair of rectangular tubular third frames supporting the floorboards of the temporary floor, frame joining hardware for the temporary floor that joins the first frame and the second frames, and corner joining hardware that joins the pair of second frames and the pair of third frames in a frame-like manner. The corner joining hardware preferably comprises a corner body positioned at the intersection of the longitudinal direction of the second frame and the longitudinal direction of the third frame, a first insertion portion extending from the end of the corner body on the second frame side toward the second frame, inserted into the interior of the second frame and fixed to the second frame, and a second insertion portion extending from the end of the corner body on the third frame side toward the third frame, inserted into the interior of the third frame and fixed to the third frame. With the above configuration, the second and third frames that constitute the frame-like structure are fixed together with screws, eliminating the need for welding during the manufacturing of the frame. Therefore, it is possible to reduce the manufacturing cost of the frame while improving its strength.

[0011] In this case, the corner body portion is formed with a foldable wall portion that can be folded back relative to the corner body portion, and the folded foldable wall portion is positioned so as to partially overlap with the upper surface of the corner body portion and be substantially flush with the upper surfaces of the second frame and the third frame. With the above configuration, when a floorboard is placed on the upper surfaces of the second and third frames that constitute the frame-like structure, unevenness at the joint between the second and third frames can be suppressed.

[0012] In this case, when the folded wall portion is folded back, it is preferable that the folded wall portion abuts against the end face in the longitudinal direction of the second frame, or against the end face in the longitudinal direction of the third frame. With the above configuration, the folded wall portion can be used to position the second or third frame so that it is inserted into the corner joint fitting.

[0013] Furthermore, in a temporary floor equipped with the above-described frame body, the temporary floor comprises the frame body and the floor plate placed on the upper surface of the frame body, wherein the frame body has an opening surrounded by the first frame, a pair of the second frames and the third frame, the floor plate is rotatably provided with respect to the frame body and has an opening / closing plate that covers a part of the opening, and the support portion preferably supports a part of the floor plate from below when a part of the opening is covered by the opening / closing plate. With the above configuration, it is possible to reduce the cost of manufacturing the frame while providing a frame that has sufficient strength to withstand the impact when the opening and closing plate is rotated and closed.

[0014] At this time, the floor board is attached to the base end side on the lower surface of the opening / closing board, and has a long reinforcing plate extending along the length direction of the first frame. When a part of the opening is covered by the opening / closing board, it is preferable that at least a part of the reinforcing plate is supported from below by the support portion. With the above configuration, by providing a reinforcing plate on the lower surface of the floor board, the floor board can be reinforced, and by supporting the reinforcing plate with the support portion, the strength can be improved.

Advantages of the Invention

[0015] According to the frame joint metal fitting, the frame body, and the temporary floor of the present invention, the strength can be improved while reducing the cost.

Brief Description of the Drawings

[0016] [Figure 1] It is a perspective view of a temporary floor according to an embodiment of the present invention. [Figure 2] It is a view of the temporary floor seen from the back side. [Figure 3] It is a front view of the temporary floor, showing the state where the floor board part is opened. [Figure 4] It is a perspective view of the corner joint metal fitting. [Figure 5] It is a front view of the corner joint metal fitting. [Figure 6] It is a view showing the state where the second frame and the third frame are joined by the corner joint metal fitting. [Figure 7] It is a perspective view of the frame joint metal fitting. [Figure 8] It is a top view of the frame joint metal fitting. [Figure 9] It is a side view of the frame joint metal fitting. [Figure 10] It is a view showing the state (front side) where the first frame and the second frame are joined by the frame joint metal fitting. [Figure 11] It is a view showing the state (back side) where the first frame and the second frame are joined by the frame joint metal fitting.

Embodiments for Carrying Out the Invention

[0017] The following describes a temporary floor 1 of one embodiment of the present invention (hereinafter referred to as "this embodiment") based on Figures 1 to 11. In the following description, as indicated by the arrows in Figure 1, "vertical direction" refers to the vertical direction of the temporary floor 1 when it is attached to the upper floor as a scaffold for workers. "Left-right direction" refers to the width direction of the temporary floor 1. "Front-back direction" refers to the direction perpendicular to the vertical and left-right directions, and refers to the longitudinal direction of the temporary floor 1. When a worker standing in front of the temporary floor 1 looks at the temporary floor 1, the right side is considered the "right direction," and the left side is considered the "left direction."

[0018] <Temporary flooring> Temporary floor 1 is installed and used at the entrance to a temporary staircase on the upper floor. More specifically, when workers ascend or descend between the upper and lower floors, they can pass through the entrance to the temporary staircase by opening the temporary floor 1 installed at the entrance. Furthermore, by closing the temporary floor 1, workers can prevent themselves or their tools from falling from the entrance, thereby improving worker safety at the construction site.

[0019] As shown in Figures 1 to 3, the temporary floor 1 comprises a frame body 10 and a floor plate 50 placed on the upper surface of the frame body 10. The temporary floor 1 only needs to have sufficient strength to support workers and building materials working on the upper floor, and may be made of metal, resin, or a combination thereof. By making the temporary floor 1 out of metal or resin, it is possible to reduce the weight of the temporary floor 1, improving its transportability.

[0020] <Frame> As shown in Figures 1 to 3, the frame body 10 supports the floorboard 50 from below and is composed of a plurality of long frames and a plurality of connecting fittings. The frame body 10 includes a rectangular tubular first frame 11, a rectangular tubular second frame 12, a rectangular tubular third frame 13, a rectangular tubular reinforcing frame 14, a retaining member 16, a corner connecting fitting 20 that joins the second frame 12 and the third frame 13 in a frame shape, a right-angle connecting fitting 30 (frame connecting fitting) that joins the first frame 11 and the second frame 12, and a reinforcing connecting fitting 40 that joins the second frame 12 and the reinforcing frame 14.

[0021] As shown in Figures 1 to 3, a pair of second frames 12 (front frame 12a, rear frame 12b) and a pair of third frames 13 (left frame 13a, right frame 13b), arranged in a frame shape, constitute the frame-shaped frame of the temporary floor 1. Furthermore, the first frame 11 and reinforcing frame 14, which are erected between the pair of second frames 12, constitute a frame that reinforces the temporary floor 1.

[0022] A pair of second frames 12 and a pair of third frames 13 are joined together in a frame-like manner by four corner connecting hardware 20. The first frame 11 is joined to the second frame 12 by two orthogonal connecting fittings 30 so as to be perpendicular to it. The reinforcing frame 14 is joined to the second frame 12 perpendicularly by two reinforcing joint fittings 40. However, the number of each connecting hardware and the frames to which each connecting hardware is connected are not limited to those specified.

[0023] An opening 15 is formed in the frame body 10, surrounded by a pair of second frames 12 and a pair of third frames 13. The opening 15 corresponds to the entrance to the temporary staircase described above. In other words, the frame-like structure consisting of the pair of second frames 12 and the pair of third frames 13 has dimensions and a shape that correspond to the entrance. Specifically, the frame-like structure has dimensions of 960 mm in width and 1310 mm in length.

[0024] The opening 15 consists of a first opening 15a, which is the area through which a worker passes, and a second opening 15b and a third opening 15c, which are provided on both sides of the first opening 15a. Specifically, the first opening 15a is the area enclosed by the first frame 11, the pair of second frames 12, and the reinforcing frame 14. The second opening 15b is the area enclosed by the first frame 11, the pair of second frames 12, and the left third frame 13 (left frame 13a). The third opening 15c is the area enclosed by the pair of second frames 12, the right third frame 13 (right frame 13b), and the reinforcing frame 14.

[0025] The second opening 15b and the third opening 15c are areas for inserting the handrail of the temporary staircase. The second opening 15b and the third opening 15c extend in the longitudinal direction of the temporary floor 1. The handrails, which are installed on both sides of the temporary staircase, pass through the second opening 15b and the third opening 15c. By having the handrails pass through the second opening 15b and the third opening 15c and extend above the upper floor, the safety of workers moving up and down through the first opening 15a can be improved.

[0026] As shown in Figure 2, the retaining members 16 are fixed to the inside of the four corners of the frame-shaped frame (a pair of second frames 12 and a pair of third frames 13). The retaining members 16 protrude downward from the frame-shaped frame. Therefore, when the temporary floor 1 is displaced laterally, the retaining members 16 will come into contact with the horizontal members of the upper floor, thereby restricting the lateral displacement of the temporary floor 1. This prevents the temporary floor 1 from shifting laterally and moving away from its intended position.

[0027] The bottom surface 16a of the retaining member 16 forms an inclined surface in which the amount of downward protrusion increases from the outside to the inside. This restricts the lateral displacement of the temporary floor 1. Furthermore, even if the temporary floor 1 is placed in a position that is off-center to the left or right, the temporary floor 1 is guided by the inclined surface of the bottom surface 16a and automatically corrected to the correct position before being placed on the horizontal member.

[0028] <Corner joint hardware> The corner joint fitting 20, as shown in Figures 4 to 6, is a joint fitting for joining a pair of second frames 12 and a pair of third frames 13 in a frame-like manner. The corner joint fitting 20 is formed by punching out a single metal plate-like member and then press-forming it. The corner joint fitting 20 has a corner body portion 21, a first insertion portion 22 fixed to the second frame 12, and a second insertion portion 23 fixed to the third frame 13.

[0029] As shown in Figures 4 to 6, the corner body portion 21 is positioned where the longitudinal direction of the second frame 12 and the longitudinal direction of the third frame 13 intersect. The corner body portion 21 has a foldable wall portion 24 that can be folded back relative to the corner body portion 21.

[0030] As shown in Figure 6, the folded wall portion 24 is positioned so as to partially overlap with the upper surface of the corner body portion 21 in the vertical direction, and is substantially flush with the upper surfaces of the second frame 12 and the third frame 13 (second frame upper surface 12B, third frame upper surface 13B). By doing so, when the floor plate 50 is placed on the upper surface 12B of the second frame and the upper surface 13B of the third frame, it is possible to suppress unevenness at the joint between the second frame 12 and the third frame 13.

[0031] When the folded wall portion 24 is folded back, the folded wall portion 24 comes into contact with the end face of the second frame 12 in the longitudinal direction. Specifically, when the folded wall portion 24 is folded back, the first contact portion 24a of the folded wall portion 24 comes into contact with the end face of the upper surface 12B of the second frame. Furthermore, when the folded wall portion 24 is folded back, it comes into contact with the end face of the third frame 13 in the longitudinal direction. Specifically, when the folded wall portion 24 is folded back, the second contact portion 24b comes into contact with the end face of the upper surface 13B of the third frame. By doing so, the insertion positions of the second frame 12 and the third frame 13 can be positioned when they are inserted into the corner joint fitting 20.

[0032] As shown in Figures 4 to 6, the first insertion portion 22 is the part that is inserted into and fixed to the second frame 12. The first insertion portion 22 extends from the end of the square main body portion 21 on the second frame 12 side toward the second frame 12, is inserted into the interior of the square tubular second frame 12, and is fixed to the second frame 12 by being screwed in with screws S.

[0033] The second insertion portion 23 is the part that is inserted into and fixed to the third frame 13, as shown in Figures 4 to 6. The second insertion portion 23 extends from the end of the corner body portion 21 on the third frame 13 side toward the third frame 13, is inserted into the interior of the third frame 13, and is fixed to the third frame 13 by being screwed in with screws S.

[0034] <Orthogonal joint hardware (frame joint hardware)> As shown in Figures 7 to 11, the orthogonal joint fitting 30 is a joint fitting used to join the first frame 11 and the second frame 12 at an orthogonal angle. The orthogonal joint fitting 30 is formed by punching out a single metal plate-like member and then press-forming it. The orthogonal joint fitting 30 joins the first frame 11 and the second frame 12 with the first frame end face 11A in the longitudinal direction of the first frame 11 and the second frame side face 12A in the width direction of the second frame 12 in contact with each other.

[0035] As shown in Figures 7 to 11, the orthogonal joint fitting 30 includes a receiving portion 31 that supports one end 11a in the longitudinal direction of the first frame 11 from below, a first fixing portion 32 fixed to the side surface 12A of the second frame, a second fixing portion 33 fixed to the side surface 12A of the second frame 12 in the width direction, and a support portion 34 connected to the receiving portion 31 and the second fixing portion 33 and extending to the other side in the longitudinal direction of the second frame 12.

[0036] As shown in Figures 7 to 11, the support portion 31 is provided along the length of the first frame 11 and supports one end 11a of the first frame 11 from below. The support portion 31 has a bottom plate 31a on which the bottom surface 11C of the first frame 11 is placed, and a pair of side plates (left plate 31b, right plate 31c) that rise from both ends of the bottom plate 31a and support the side surface 11D of the first frame 11 from the side.

[0037] Side plate fixing holes 31g are formed in the left plate 31b and the right plate 31c. The first frame 11 is attached to the receiving portion 31 by screwing it through the side plate fixing holes 31g while one end 11a of the first frame 11 is placed on it.

[0038] As shown in Figures 7 to 11, the first fixing portion 32 is provided on one side in the width direction of the receiving portion 31, positioned on one side in the length direction of the second frame 12, and is fixed to the side surface 12A of the second frame. Specifically, the first fixing portion 32 is connected to the left side plate 31b of the receiving portion 31, and bends from the rear end portion 31d of the left side plate 31b on the second frame 12 side, extending to the left in the longitudinal direction of the second frame 12.

[0039] A first fixing hole 32a is formed in the first fixing portion 32. The first fixing portion 32 is attached to the second frame 12 by being screwed to the side surface 12A of the second frame 12 through the first fixing hole 32a.

[0040] As shown in Figures 7 to 11, the second fixing portion 33 is provided on the other side in the width direction of the receiving portion 31, positioned on the other side in the length direction of the second frame 12, and is fixed to the side surface 12A of the second frame. Specifically, the second fixing portion 33 is connected to the right-side plate 31c of the receiving portion 31 via a support portion 34, and extends downward from the support rear end 34b on the second frame 12 side of the support portion 34, which is bent.

[0041] A second fixing hole 33a is formed in the second fixing portion 33. The second fixing portion 33 is attached to the second frame 12 by being screwed to the second frame side surface 12A of the second frame 12 through the second fixing hole 33a.

[0042] As shown in Figures 7 to 11, the support portion 34 connects the receiving portion 31 and the second fixing portion 33, and is the part that supports a portion of the floor plate 50. Specifically, the support portion 34 is connected to the right-side plate 31c of the receiving portion 31, and extends to the right in the longitudinal direction of the second frame 12 by bending from the upper end 31e of the right-side plate 31c. In other words, the first frame 11 is positioned on the support base end 34a side of the support portion 34, and the second frame 12 is positioned on the support rear end 34b side. The support portion 34 has a roughly triangular receiving surface when viewed from above, due to the chamfered portion 34c. However, the shape of the receiving surface of the support portion 34 is not limited to this; it may be rectangular without the chamfered portion 34c. Alternatively, it may be rounded instead of chamfered.

[0043] As shown in Figures 1 and 2, the support portion 34 supports a portion of the floor plate 50 from below when the floor plate 50 is placed on the upper surfaces of the first frame 11 and the second frame 12. As will be described later, the support portion 34 also supports the end portion 53a of the reinforcing plate 53 attached to the lower surface of the opening / closing plate 52 from below.

[0044] Furthermore, since the orthogonal joint fitting 30 is formed by punching out and pressing a single metal plate-like member, the support portion 34 is formed continuously with the upper end portion 31e of the right-side plate 31c of the receiving portion 31. Also, the second fixing portion 33 is not connected to the rear end portion 31f of the right-side plate 31c of the receiving portion 31. However, the configuration is not limited to this, and the receiving portion 31 and the second fixing portion 33 may be directly connected. Also, although the receiving portion 31 and the first fixing portion 32, the receiving portion 31 and the support portion 34, and the second fixing portion 33 and the support portion 34 are each formed integrally to be continuous, they may also be provided as separate parts. For example, the upper end portion 31e of the receiving portion 31 may abut against the support base end portion 34a of the support portion 34 from below.

[0045] <Reinforcement joint hardware> As shown in Figures 2 and 3, the reinforcing joint fitting 40 is a joint fitting used to join the second frame 12 and the reinforcing frame 14 at a right angle. The reinforcing joint fitting 40 is formed by punching out a single metal plate-shaped member and then press-forming it. Alternatively, instead of the reinforcing joint fitting 40, the orthogonal joint fitting 30 may be used to join the second frame 12 and the reinforcing frame 14 at an orthogonal angle.

[0046] <Floorboards> As shown in Figures 1 to 3, the floor plate 50 is a rectangular plate-like body that serves as a worker's platform and a cover for the entrance. The floor plate 50 includes a closing plate 51 attached to the frame body 10, an opening / closing plate 52 that is rotatably attached to the closing plate 51, a reinforcing plate 53 attached to the lower surface of the opening / closing plate 52, and a hinge 54 that rotatably attaches the opening / closing plate 52 to the closing plate 51.

[0047] As shown in Figure 1, the closing plate 51 is a member that closes a portion of the opening 15 (the rear side of the second opening 15b) and is attached to the upper surface of the frame body 10. By covering a portion of the opening 15 (the rear side of the second opening 15b) with the closing plate 51, it is possible to prevent tools and other items from being accidentally dropped through the opening 15.

[0048] As shown in Figure 1, the opening / closing plate 52 is substantially inverted L-shaped in a top view and is an elongated member in the longitudinal direction of the first frame 11. As shown in Figure 3, the opening / closing plate 52 is a member that closes a part of the opening 15 (the rear side of the first opening 15a and the third opening 15c) and is rotatably mounted relative to the frame body 10. The opening / closing plate 52 rotates with the direction extending along the longitudinal direction of the first frame 11 and the opening / closing plate 52 as the axial direction. However, the axial direction is not limited to this; it may also be rotated with the direction extending along the width direction of the opening / closing plate 52 as the axial direction.

[0049] The opening / closing plate 52 is mounted on the frame body 10 so as to be switchable between an open position that opens the opening 15 (see Figure 3) and a closed position that covers the opening 15 (see Figure 1) by a hinge 54 provided at the left end of the opening / closing plate 52. The hinge 54 is a flag hinge, but is not limited to this, and may be a flat hinge. Alternatively, instead of providing the hinge 54, the opening / closing plate 52 may be placed on the upper surface of the frame body 10 so as to cover the opening 15.

[0050] Anti-slip tape 52a is attached to the upper surface of the opening / closing plate 52. By attaching anti-slip tape 52a to the upper surface of the opening / closing plate 52, it is possible to improve the safety of workers working on the opening / closing plate 52.

[0051] The closing plate 51 and the opening / closing plate 52 are composed of an intermediate layer having a honeycomb core and an outer layer material covering the surface of the intermediate layer on both sides. More specifically, the intermediate layer has a plurality of cells having a regular hexagonal cross-sectional shape arranged regularly adjacent to each other. The intermediate layer is covered with an outer layer material made of hard resin. This makes it possible to reduce the weight of the floor plate 50 while ensuring the necessary strength of the floor plate 50.

[0052] As shown in Figures 2 and 3, the reinforcing plate 53 is a long rectangular plate that extends along the longitudinal direction of the first frame 11 and the opening / closing plate 52, and is attached to the base end 52b side on the lower surface of the opening / closing plate 52. In this way, the opening and closing plate 52 can be reinforced by providing a reinforcing plate 53 along the length of the opening and closing plate 52. The reinforcing plate 53 may also be provided at the end opposite to the base end 52b. Alternatively, the reinforcing plate 53 may be provided along the width direction of the opening / closing plate 52.

[0053] As shown in Figure 2, when the opening / closing plate 52 is rotated from an open position that opens the opening 15 to a closed position that covers the opening 15, the support portion 34 of the orthogonal joint fitting 30 supports a portion of the floor plate 50 from below when the opening / closing plate 52 is rotated and a portion of the opening 15 is covered. Specifically, the support portion 34 supports the reinforcing plate end portion 53a, which is the end portion of the reinforcing plate 53 in the longitudinal direction, from below when the opening / closing plate 52 is rotated to cover a part of the opening 15 (the rear side of the first opening 15a and the third opening 15c).

[0054] In this way, by providing a reinforcing plate 53 on the underside of the floorboard 50, the floorboard 50 can be reinforced, and by supporting the reinforcing plate 53 with the support part 34, the strength of the temporary floor 1 can be improved. In this embodiment, the support portion 34 supports the end portion 53a of the reinforcing plate 53 in the longitudinal direction, but this is not limited to this configuration. For example, the support portion 34 may support the entire reinforcing plate 53. Alternatively, the support portion 34 may directly support the lower surface of the opening / closing plate 52 without providing the reinforcing plate 53.

[0055] <Other Embodiments> The orthogonal joint fittings 30 (frame joint fittings), frame body 10, and temporary floor 1 of the present invention are not limited to the above-described embodiment. In this embodiment, the case of orthogonal joint fittings 30 that join the frame body 10 of the temporary floor 1 has been described as an example. However, it is not limited to this, and for example, the frame joint fittings are also suitable for connecting floor beams and joists, or ceiling beams.

[0056] The above embodiments mainly described the frame joining hardware, frame body, and temporary floor for temporary floors according to the present invention. However, the embodiments described above are merely examples to facilitate understanding of the present invention and do not limit it. The present invention can be modified and improved without departing from its spirit, and of course, equivalents thereof are included. [Explanation of Symbols]

[0057] 1 Temporary floor 10 Frame Body 11 First Frame 11A First frame end face (side in the longitudinal direction) 11B Top of the first frame 11C First frame bottom 11D First frame side 11a One end 12 Second Frame 12A Second frame side (side in the width direction) 12B Second frame top 12a Front Frame 12b Rear frame 13 Third Frame 13A Third frame side 13B Third frame top 13a Left frame 13b Right frame 14 Reinforcement Frame 15 Aperture 15a First opening 15b Second opening 15c Third opening 16. Anti-detachment member 16a Bottom 20 Corner joint hardware 21 Square main body 22 First insertion section 23 Second insertion section 24 Folded wall section 24a First contact part 24b Second contact part 30. Orthogonal joint hardware (frame joint hardware) 31 Receiving part 31a Bottom plate 31b Left side plate (side plate) 31c Right side plate (side plate) 31d Rear end of left side plate 31e Upper end 31f Right side plate rear end 31g Side plate fixing hole 32 First fixed part 32a First fixing hole 33 Second fixed part 33a Second fixing hole 34 Support part 34a Support base end 34b Support rear end 34c Chamfered section 40 Reinforcement joint hardware 50 floorboards 51 Occlusion plate 52 Opening / Closing Plate 52a Anti-slip tape 52b Proximal end 53 Reinforcement plate (part of the floorboard) 53a End of reinforcing plate 54 Hinge S screw

Claims

1. A temporary floor frame connecting hardware used to connect a first frame and a second frame that constitute the frame of a temporary floor and support the floorboards of the temporary floor, The first frame and the second frame are joined together with the longitudinal side surface of the first frame and the widthwise side surface of the second frame in contact with each other. A receiving portion is provided along the longitudinal direction of the first frame and supports one end of the first frame from below in the longitudinal direction, A first fixing portion is provided on one side in the width direction of the receiving portion and is fixed to the side surface in the width direction of the second frame, A second fixing portion is provided on the other side in the width direction of the receiving portion and is fixed to the side surface in the width direction of the second frame, A temporary floor frame connecting hardware comprising a support portion provided on the other side in the width direction of the receiving portion, connecting the receiving portion and the second fixing portion, and supporting a part of the floor plate from below.

2. The receiving portion is, A base plate on which the bottom surface of the first frame is placed, It has a pair of side plates that rise from both ends of the base plate and support the first frame from the side, The first fixing portion bends from the end of one of the side plates on the second frame side and extends to one side in the longitudinal direction of the second frame, The support portion bends from the upper end of the other side plate and extends to the other side in the longitudinal direction of the second frame, The frame connecting hardware for a temporary floor according to claim 1, characterized in that the second fixing portion bends and extends downward from the end of the support portion on the second frame side.

3. A frame body comprising the frame connecting hardware for the temporary floor as described in claim 1, The aforementioned frame body is The first frame, which is rectangular in shape, A pair of rectangular tubular second frames, A pair of rectangular tubular third frames supporting the floorboards of the temporary floor, Frame joining hardware for the temporary floor that joins the first frame and the second frame, It comprises a pair of second frames and a pair of third frames joined together in a frame-like manner by corner joint fittings, The aforementioned corner joint fitting is A corner body portion is positioned at the intersection of the longitudinal direction of the second frame and the longitudinal direction of the third frame, The first insertion portion extends from the end of the corner body on the second frame side toward the second frame, is inserted into the interior of the second frame, and is fixed to the second frame, A frame body characterized by having a second insertion portion that extends from the end of the square body portion on the third frame side toward the third frame side, is inserted into the interior of the third frame, and is fixed to the third frame.

4. The aforementioned corner body portion has a foldable wall portion that can be folded back relative to the aforementioned corner body portion. The frame body according to claim 3, characterized in that the folded-back wall portion is positioned to partially overlap with the upper surface of the corner body portion and is substantially flush with the upper surfaces of the second frame and the third frame.

5. The frame body according to claim 4, characterized in that when the folded wall portion is folded back, the folded wall portion abuts against the end face in the longitudinal direction of the second frame, or abuts against the end face in the longitudinal direction of the third frame.

6. A temporary floor comprising the frame body according to any one of claims 3 to 5, The temporary floor comprises the frame body and the floor plate placed on the upper surface of the frame body. The frame body has an opening formed in which the first frame, the pair of second frames, and the third frame are enclosed. The floor plate is rotatably mounted relative to the frame and has an opening / closing plate that covers a part of the opening. The support portion is characterized in that it supports a portion of the floorboard from below when a portion of the opening is covered by the opening / closing plate.

7. The floor plate has a long reinforcing plate attached to the base end side of the lower surface of the opening / closing plate and extending along the length direction of the first frame, The temporary floor according to claim 6, characterized in that the support portion supports at least a portion of the reinforcing plate from below when a portion of the opening is covered by the opening / closing plate.

Images