JP6936489B2 - Scaffolding board for temporary scaffolding - Google Patents

Description

The present invention relates to, for example, a scaffolding board for temporary scaffolding used at various work sites such as a construction work site, a civil engineering work site, and a demolition work site, and a structure in which the scaffolding boards for temporary scaffolding are stacked one above the other.

For example, a temporary scaffold constructed at various work sites such as a construction work site, a civil engineering work site, and a demolition work site is constructed by combining various components, and as one of the components, a worker is placed on the top. There is a scaffolding board for temporary scaffolding for riding and walking and for placing tools.

The scaffolding board for temporary scaffolding has hooks at both ends of the board having an elongated shape as a whole. These scaffolding boards for temporary scaffolding are thickened in order to improve transportation efficiency and handleability when they are transported to various work sites or from various work sites to other places such as material storage areas. Stacked up and down with the vertical direction as the vertical direction.

However, when a plurality of temporary scaffolding boards are stacked one above the other in this way, the hooks of the upper and lower temporary scaffolding boards become an obstacle, so that the positions are horizontally positioned between the temporary scaffolding boards. Stack them in a staggered manner. Stacking with this deviation makes the stacking unstable and also spreads in the width direction, so that it becomes difficult to transport a large number of scaffolding boards for temporary scaffolding. For this reason, it is required that the scaffolding plates for temporary scaffolding be positioned in the horizontal direction so that they can be stacked vertically.

Therefore, for example, Patent Document 1 (Patent No. 5172242) provides a scaffold for temporary scaffolding having a recess on the upper surface of the hook member and the lock member to prevent interference when the scaffolding plates for temporary scaffolding are stacked. The board is listed.

Japanese Patent No. 5172242

However, the scaffolding plate for temporary scaffolding of Patent Document 1 has a configuration in which the protrusions of the hook member and the lock member project downward from the cloth plate main body with respect to the cloth plate main body. That is, the scaffolding plate for temporary scaffolding of Patent Document 1 constitutes a hook member so that the upper surface of the hook is at the same height as the upper surface of the cloth plate main body, and a protrusion located at the lower end of the hook member and the lock member by that amount. The part is located below the lower side of the cloth plate body.

According to this configuration, when the temporary scaffolding scaffolding plate of the horizontal lumber of the scaffolding is assembled, the upper surface of the cloth plate main body is arranged at a position higher than the upper surface of the horizontal lumber. As a result, a gap is created between the cloth plate main body and the horizontal member, and there is a problem that members such as bolts fall. Furthermore, as the installation height of the cloth board increases, the height between the scaffolding board and the handrail becomes shorter, and the height from the scaffolding board to the handrail may not meet the installation standard of the temporary scaffolding. There was also a problem.

Therefore, the technical problem to be solved by the present invention is to provide a scaffolding board for temporary scaffolding that can be positioned and stacked in the horizontal direction.

The present invention provides a scaffolding board for temporary scaffolding having the following configuration in order to solve the above technical problems.

According to the first aspect of the present invention, it is hung between the horizontal members of the temporary scaffolding building frame including the columns provided with the attachment portions at predetermined intervals and the horizontal members fixed to the attachment portions of the columns. A scaffolding board for temporary scaffolding having a scaffolding board body having a predetermined thickness and a locking hook that is attached so as to project from both ends of the scaffolding board body and can be engaged with the horizontal member.
The locking hook
The base end side vertical portion connected to the scaffold plate body, the tip end side vertical portion parallel to the base end side vertical portion, and the upper side located between the tip end side vertical portion and the base end side vertical portion and curved upward. It has a horizontal portion, a locking groove surrounded by a vertical portion on the tip end side, a vertical portion on the base end side, and an upper horizontal portion and an opening at the lower end, and the upper end of the locking groove has the same height as the upper surface of the scaffold plate main body. Now, with the hook member configured so that the lower end of the locking groove is located above the lower surface of the scaffold plate body.
A fixed position provided at one end in the width direction of the vertical portion on the base end side of the hook member, which extends downward from the lower surface of the scaffolding plate main body and can partially close the opening of the locking groove, and the scaffolding plate main body. It is slidable with respect to the hook member from the release position located above the lower surface of the scaffolding plate, and at the same time as sliding from the fixed position to the scaffolding plate main body side, it slides upward and is arranged at the release position. With a lock member,
The upper horizontal portion of the hook member is located at the root portion on the scaffolding plate main body side with a step portion extending in the direction along the lower end of the base end side vertical portion and a step portion that is continuous with the step portion and is positioned on the lower side when laminated in the vertical direction. It has a curved portion that is curved upward so that the hook member to be used is arranged in the locking groove.
The lock member has a relief portion at the lower edge capable of accommodating the upper end of the lock member of the locking hook laminated below at the time of stacking.
The relief portion includes an upper side, a base end side extending downward from the end of the upper side on the scaffolding plate main body side, and a tip side side extending downward from the end of the upper side on the locking groove side. , And the base end side side is in contact with the base end side edge of the temporary scaffolding scaffolding plate laminated below, and the tip end is Provided is a temporary scaffolding scaffolding plate, characterized in that the side side contacts the edge on the tip end side of the locking member of the temporary scaffolding scaffolding plate laminated below.

According to the second aspect of the present invention, the lock member provides the scaffolding plate of the first aspect, characterized in that the lock member is provided on the side surface in the width direction of the base end side vertical portion.

According to the third aspect of the present invention, the scaffolding plate main body includes a top plate portion in which a plurality of U-shaped cross-section tread plates are arranged side by side in the width direction.
Provided is a scaffolding plate for temporary scaffolding of the first or second aspect, which has a frame portion provided around the top plate portion.

According to the fourth aspect of the present invention, the top plate portion is formed by arranging the plurality of tread plates in the width direction with a gap, and a locking member extending in the width direction in the gap is placed near the end portion of the top plate portion. Provided is a scaffolding board for a temporary scaffolding according to a third aspect, which is characterized by having.

According to the fifth aspect of the present invention, the frame portion is composed of a frame member having a U-shaped cross section arranged along the end portion of the top plate portion, and is formed on the upper plate and the lower plate of the frame member. Provided is a scaffolding board for temporary scaffolding according to a third or fourth aspect, which has uneven portions that are fitted to each other.

According to the present invention, the hook portion of the locking hook has an upper horizontal portion having a curved portion having an upper end curved upward and a stepped portion extending in a direction along the lower end of the base end side vertical portion. When the scaffolding plates for temporary scaffolding are stacked in the vertical direction, the lower end of the vertical portion on the base end side abuts on the stepped portion, and the curved portion is arranged in the opening of the locking groove.

Further, since the hook member of the locking hook can slide up and down between the release position and the fixed position and has a relief portion at the lower edge, when the scaffolding plates for temporary scaffolding are stacked in the vertical direction, the lower part is lowered. It is possible to accommodate the upper end of the locking member of the locking hook of the temporary scaffolding board laminated on the above.

Therefore, the locking hooks located within the thickness dimension of the scaffolding plate body do not interfere with the locking hooks when they are stacked in the vertical direction. Therefore, a plurality of temporary scaffolding scaffolding plates can be positioned and stacked in the horizontal direction.

It is a perspective view explaining the structure of the building frame for temporary scaffolding which attaches the scaffolding board for temporary scaffolding which concerns on this embodiment. It is a perspective view which shows the appearance structure of the scaffolding board which concerns on embodiment of this invention. It is a partially enlarged perspective view of the scaffolding board end portion of FIG. It is a partially enlarged plan view of the scaffolding board end portion of FIG. 1 viewed from above. It is a partially enlarged bottom view of the scaffolding board end portion of FIG. 1 seen from the bottom. It is sectional drawing in the VI-VI line of FIG. It is a rear view which shows the appearance structure of the locking hook which a lock member is in an open position. It is a front view which shows the appearance structure of the locking hook which a lock member is in an open position. It is a side view which shows the structure of the locking hook in the state which a lock member is in a fixed position. It is a left side view of a scaffolding board in a state where a plurality of sheets are laminated. It is a front view of the scaffolding board in a state where a plurality of sheets are laminated. It is a rear view of the scaffolding board in a state where a plurality of sheets are laminated.

Hereinafter, the scaffolding plate according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing the structure of a temporary scaffolding board 1 (hereinafter, referred to as a scaffolding board 1) according to an embodiment of the present invention. FIG. 2 is a partially enlarged perspective view of the end portion of the scaffolding plate of FIG.

The scaffolding plate 1 according to the present embodiment is bridged between the horizontal members 102 of the temporary scaffolding 100. The temporary scaffold 100 is assembled along the perimeter of the building, as shown in FIG. The temporary scaffolding 100 is framed by a plurality of columns 101 erected in a plurality of rows at predetermined intervals along the outer circumference of the building, and horizontal members 102 erected between the columns.

As shown in FIG. 1, in the temporary scaffold 100, the columns 101 provided with the flange 103 are arranged in a grid pattern at predetermined intervals in the orthogonal biaxial directions (inter-beam direction and girder direction), and the flanges are arranged. It can be assembled by fixing the horizontal member 102 to 103. In FIG. 1, the horizontal member 102 to which the scaffolding plate 1 is fixed is arranged so as to connect the columns adjacent to each other in the beam-to-beam direction. A horizontal member 102a may be erected in the direction of the girder to reinforce the temporary scaffolding frame.

The support column 101 is composed of, for example, a metal pipe having a diameter of about 45 mm, and a plurality of columns 101 can be connected and used in the axial direction of the support column 101. Further, the column 101 is provided with a flange 103 as an example of a mounting portion at regular intervals, for example, every 45 cm in the present embodiment. The flange 103 is a plate-shaped member provided with a plurality of connecting holes, and is arranged with the ends of the horizontal member 102 sandwiching the flange. By inserting a wedge into the connecting holes of the flange 103, the flange 103 is horizontal. The material 102 and the support column 101 are fixed.

The scaffolding plate 1 is bridged between two horizontal members 102 in the girder direction arranged at the same height position.

In the following description, the vertical direction of the scaffolding plate 1 when it is bridged between two horizontal members 102 arranged at the same height position is referred to as a "vertical direction". Further, the direction perpendicular to the vertical direction and along the surface of the scaffolding plate 1 is defined as the "horizontal direction". When it is bridged between two horizontal members 102 arranged at the same height position, the vertical direction coincides with the vertical direction and the horizontal direction coincides with the horizontal direction. Further, among the "horizontal directions", the direction along the side of the scaffolding plate main body 2 provided with the locking hook 3 of the scaffolding plate 1 is "width direction", which is orthogonal to the width direction, and the locking hook 3 is provided. The direction along the side of the scaffolding board main body 2 that is not used is called the "length direction". When the scaffolding plate 1 is laid over two horizontal members arranged at different height positions, the vertical and horizontal directions are inclined from the vertical and horizontal directions, respectively.

As shown in FIG. 1, the scaffolding plate 1 is located between the scaffolding plate main body 2 having a rectangular shape, the locking hooks 3 provided on both ends of the scaffolding plate main body 2 in the length direction, and the locking hooks 3. It has an arranged gap closing member 4.

Further, in the scaffolding plate 1 according to the present embodiment, the scaffolding plate main body 2 is a rectangle whose long side is a side along the length direction in a plan view viewed from above. The relative size in the length direction and the width direction is not limited to this, and the scaffolding plate main body 2 may be square in a plan view, and a locking hook 3 is provided. It may be a rectangle whose length direction is shorter than the width direction.

The scaffolding plate main body 2 has a top plate portion 5 and a frame portion 6 located at an end portion of the top plate portion 5.

The top plate portion 5 is configured by arranging two tread plates 7 provided with a plurality of convex portions 5a in the width direction.

In the present embodiment, the frame portion 6 is composed of a set of frame members 8 attached to both ends of the top plate portion 5 in the length direction. The frame material 8 is welded to both ends of the top plate portion 5 in the length direction to fix two tread plates arranged in the width direction. The frame portion 6 may be formed in a rectangular shape by using four frame members arranged on the peripheral edge of the top plate portion 5, or intermediate beams may be provided in the length direction and the width direction.

FIG. 3 is a partially enlarged perspective view of the end portion of the scaffolding plate. FIG. 4 is a partially enlarged plan view of the end portion of the scaffolding plate. FIG. 5 is a partially enlarged bottom view of the scaffolding plate end portion.

As shown in FIGS. 3 to 5, a pair of locking hooks 3 are provided at both ends of the scaffolding plate main body 2 on the length direction side. Specifically, the locking hook 3 attaches the base end side end portions 9 to the end faces of the frame members 8 located at both ends in the length direction of the scaffolding plate main body 2 by rivets or welding. The locking hook 3 is locked to the horizontal member 102 to connect the treads.

As shown in FIGS. 3 to 5, the gap closing member 4 is fixed at a position between the locking hooks 3 of the frame member 8 of the frame portion 6 by means such as welding. The gap closing member 4 is formed by bending one metal plate into a substantially triangular shape, and has an upper surface portion 11 and an upper surface portion provided so as to extend along the upper surface at substantially the same height as the upper surface of the scaffolding plate main body 2. A lower surface portion 12 which is continuously provided on 11 and extends in an oblique direction is provided.

Further, since the gap closing member 4 has a substantially triangular cross-sectional shape, the gap closing member 4 is less likely to be caught and is excellent in handling workability.

As shown in FIGS. 4 and 5, the tip portion 4a of the gap closing member 4 is configured so as not to overlap the horizontal member 102 in the horizontal direction when viewed from the vertical direction.

By configuring the gap closing member 4 in this way, it is possible to lock the scaffolding plate 1 to the horizontal member 102 with the support column sandwiched between them, so that the so-called re-hanging is possible, and the width of the assembly work to the temporary scaffolding is widened for workability. Can be facilitated.

The scaffolding plate 1 according to the present embodiment has the scaffolding plate main body 2 and the locking hook 3 so that when a plurality of scaffolding plates 1 are stacked in the vertical direction, the load does not easily collapse and the locking hooks 3 can be stacked without interfering with each other. It is configured. Hereinafter, the specific configuration of the scaffolding board main body and the locking hook will be described in detail.

(Scaffolding board body)
As described above, the scaffolding plate main body 2 has a top plate portion 5 and a frame portion 6 located at an end portion of the top plate portion 5. FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. As shown in FIG. 6, the top plate portion 5 has two tread plates 7 arranged in the width direction, and a gap 10 is formed between the two tread plates.

The tread plate 7 is composed of a metal plate formed in a U-shaped cross section, which has an upper plate 7a and side plates 7b and 7c continuous at both ends in the width direction of the upper plate 7a and extending downward. The upper plate 7a has three reinforcing grooves 14 extending in the length direction to prevent the tread plate 7 from bending.

The side plate 7b located on the outer side in the width direction of the top plate portion 5 is exposed and constitutes the side surface of the scaffolding plate.

The side plates 7c adjacent to each other with the gap 10 interposed therebetween are connected by a locking member 13 extending in the width direction. The locking member 11 is provided near the frame member 8 near the end of the top plate portion.

For example, a hanging member of a crane used for suspending the scaffolding plate 1 and lifting it to a high place can be passed through the gap 10. Specifically, a hanging member such as a wire or a hook is passed through the center side of the locking member 11 of the gap 10 so that the hanging member is caught by the locking member 11 when the scaffolding plate 1 is suspended. Can be done.

In the scaffolding plate 1 according to the present embodiment, since the frame portion 6 is welded only in the length direction of the scaffolding plate main body 2, when the suspension member is passed through the gap 10, the load of the scaffolding plate 1 is applied to the frame portion 6. It will take. As a result, the welding between the frame portion 6 and the top plate portion 5 is disengaged, which causes damage to the scaffolding plate 1. According to the present embodiment, since the locking member 13 is attached to the top plate portion 5, no load is applied to the frame portion 6 even if the hanging member is passed through the gap 10. Thereby, damage to the scaffolding plate 1 can be prevented.

The frame material 8 of the frame portion 6 has a middle plate 8b along the end face in the length direction of the top plate portion 5, and an upper plate 8a and a lower plate 8c located above and below the middle plate 8b, respectively, and has a U-shaped cross section. It is a rod-shaped member of. The upper plate 8a abuts on the upper plate 7a of the tread plate 7, and the lower plate 8c abuts on the lower ends of the side plates 7b and 7c of the tread plate 7.

The upper plate 8a and the lower plate 8c of the frame material 8 are provided with convex portions 15 and concave portions 16 that are fitted to each other when the scaffolding plates 1 are laminated. By fitting the convex portion 15 and the concave portion 16 to each other when the scaffolding plates 1 are laminated, the displacement of the scaffolding plate 1 in the lateral direction (width direction and length direction) is prevented.

(Locking hook)
7 is a cross-sectional view taken along the line VII-VII of FIG. 4, and FIG. 8 is a side view showing an external configuration when the locking hook is viewed from the opposite side surface of FIG. 7. As shown in FIG. 4, the locking hooks 3 are made of thin metal plates in the width direction, and are provided in pairs at both ends of the scaffolding plate main body 2 in the length direction.

As shown in FIG. 4, the positions in the width direction of the locking hooks 3 arranged at both ends in the length direction of the scaffolding plate body 2 are deviated between one end side and the other end side in the length direction of the scaffolding board body 2. When a plurality of scaffolding plates 1 are continuously bridged in the length direction, the locking hooks 3 of the adjacent scaffolding plates 1 do not interfere with each other.

The locking hook 3 includes a hook member 20 which is a plate-shaped member that can be engaged with the horizontal member 102 from above, and a lock member 30 which is slidably provided on the lock member 30.

The hook member 20 is between the base end side vertical portion 21 connected to the scaffolding plate main body 2, the tip end side vertical portion 22 parallel to the base end side vertical portion 21, and the tip end side vertical portion 22 and the base end side vertical portion 21. It is a substantially U-shaped member having an upper horizontal portion 23 located at and curved upward. Since the tip end side vertical portion 22, the base end side vertical portion 21, and the upper end side horizontal portion 23 are integrally formed as the hook member 20, their boundaries are not clear, but in the present embodiment, they are locked. The portion located above the upper end 24a of the groove 24 is referred to as the upper horizontal portion 23.

A locking groove 24 into which the horizontal member 102 is fitted is formed in a region surrounded by the tip end side vertical portion 22, the base end side vertical portion 21, and the upper horizontal portion 23. That is, the locking groove 24 opens downward. The hook member 20 and the horizontal member 102 are connected by fitting the horizontal member 102 into the locking groove 24 through the opening of the lower locking groove 24. The upper edge of the locking groove 24 is formed in an arc shape whose upper edge is substantially equal to the curvature of the peripheral surface of the horizontal member 102, and the horizontal member 102 and the locking hook 3 are locked without rattling.

In the present embodiment, the locking hook 3 is configured such that the distance from the length-side end surface 2a of the scaffolding plate main body 2 to the engaging groove 24 is longer than the protruding width from the support of the flange 103.

The lower ends of the tip end side vertical portion 22 and the base end side vertical portion 21 are located above the lower surface 2l of the scaffolding plate main body 2. Further, the upper end 24a of the locking groove 24 is substantially the same height as the upper surface 2u of the scaffolding plate main body 2. As a result, when the horizontal member 102 and the locking hook are connected, the scaffolding plate main body 2 is located at substantially the same height as the upper end of the horizontal member 102. As a result, the installation height of the scaffolding plate 1 can be lowered, and the height reference width with the handrail or the like can be increased.

The upper horizontal portion 23 of the hook member 20 has an upwardly convex curved shape. That is, the upper horizontal portion 23 of the hook member 20 projects upward from the upper surface 2u of the scaffolding plate main body 2.

The upper edge of the upper horizontal portion 23 of the hook member 20 is located at the root portion on the scaffolding plate main body 2 side, and is continuous with the step portion 25 extending in the direction along the lower end 21l of the base end side vertical portion 21 and the step portion 25. It also has a curved portion 25 that is curved upward.

The step portion 25 is located above the upper surface 2u of the scaffolding plate main body 2, and the difference A in height level between the two is the height of the lower end 21l of the base end side vertical portion 21 and the lower surface 2l of the scaffolding plate main body 2. It is almost the same as the difference B of. Further, the position of the step portion 25 in the length direction is located closer to the scaffolding plate main body 2 than the latest position 24p of the locking groove 24 with respect to the scaffolding plate main body 2. That is, when the scaffolding plates 1 described later are laminated, the lower end 21l of the base end side vertical portion 21 comes into contact with the stepped portion 25 (see FIGS. 11 and 12).

As described above, when the scaffolding plates 1 are laminated, the lower end 21l of the base end side vertical portion 21 comes into contact with the step portion 25, so that the curved portion 26 of the hook member located on the lower side is a locking hook located on the upper side. It is arranged in the locking groove 24 of 3. The details of stacking the scaffolding plates 1 in the vertical direction will be described later.

The lock member 30 is a metal piece formed in a substantially arc shape as a whole. The lock member 30 has a lower protruding portion 32 at the lower end, and has an upper protruding portion 34 at the upper end of the inner peripheral edge 33 formed in an arc shape from the lower protruding portion 32. The inner peripheral edge is configured to have substantially the same curvature as the locking groove 24. Further, on the lower edge of the lock member 30, a relief portion 35 that is continuous with the lower protruding portion 32 and is recessed upward is formed. The dimension of the relief portion 35 in the length direction is substantially the same as that of the upper edge 36 of the lock member 30, and the upper edge 36 can be stored in the relief portion 35 at the time of stacking described later.

The lock member 30 is provided so as to be slidable in the vertical direction on one end side in the width direction of the hook member 20. In the present embodiment, the lock member 30 is locked so that the lock member 30 is located outside the hook member 20 of the two scaffold plates 1 when the scaffold plate 1 is continuously hung in the longitudinal direction. It is mounted on the side of the hook that is offset in the width direction of the mounting position.

As shown in FIG. 8, the lock member 30 has two elongated holes 31 and is slidably attached to the hook member 20 by a fixing pin 27 provided on the hook member 20.

The lock member 30 slides in the vertical direction between the fixed position and the released position with respect to the hook member 20. FIG. 8 shows the positional relationship between the lock member 30 and the hook member 20 when in the released position, and FIG. 9 shows the positional relationship between the lock member 30 and the hook member 20 when in the fixed position.

At the release position shown in FIG. 8, the upper protruding portion 34 of the lock member 30 projects toward the locking groove 24 side. Further, the lower protruding portion 32 is located above the lower surface of the scaffolding plate main body 2 and closer to the scaffolding plate main body 2 than the nearest position 24p of the locking groove 24 with respect to the scaffolding plate main body 2. As a result, the horizontal portion 102 can be accommodated in the locking groove through the opening of the locking groove 24, and the upper protruding portion 34 abuts on the outer peripheral surface of the horizontal portion 102 in the locking groove 24 to lock. Assists the slide of the member 30.

Further, at the fixed position shown in FIG. 9, the lock member 30 is positioned below the upper surface of the scaffolding plate main body 2 at the fixed position. On the other hand, the lower protruding portion 32 of the lock member 30 projects toward the locking groove 24 and wraps around to the lower side of the horizontal portion 102 in the locking groove 24. As a result, it is possible to prevent the horizontal portion 102 from falling off. Therefore, it is possible to prevent the scaffolding plate 1 from falling due to blowing up or the like.

Further, the relief portion 35 is located slightly above the lower surface 2l of the scaffolding plate main body 2. The inner peripheral edge 33 is arranged along the peripheral surface of the locking groove 24, and the upper protruding portion 34 is retracted from the locking groove 24. The upper protruding portion 34 has substantially the same height as the upper surface 2u of the scaffolding plate main body 2.

When engaging the locking hook 3 with the horizontal member 102, the locking member 30 is moved upward to open the lower side of the engaging groove 8a of the locking hook 3 and engage the horizontal member 102 from above. It is fitted into the locking groove 24 of the stop hook 3. When the horizontal member 102 enters the locking groove 24, the upper protruding portion 34 is pushed to move the lock member 30 downward, and the lower protruding portion 32 protrudes to the lower side of the horizontal member 102.

A plurality of scaffolding plates 1 according to the present embodiment can be stacked one above the other without rattling due to the structure of the locking hook 3 and the positional relationship with the scaffolding plate main body 2. FIG. 10 is a left side view of the scaffolding board in a state where a plurality of sheets are laminated. FIG. 11 is a rear view of the scaffolding board in a state where a plurality of sheets are laminated. FIG. 12 is a front view of the scaffolding board in a state where a plurality of sheets are laminated.

The scaffolding plate 1 according to the present embodiment is laminated in a state where the lock member 30 is slid and arranged at a fixed position. In this state, as described above, most of the locking hook 3 except the curved portion 25 fits within the thickness dimension of the scaffolding plate main body 2, so that the scaffolding plate main body 2 can be stacked up and down without a gap.

That is, when stacking in the vertical direction, the vertical dimension of the scaffolding plate main body 2 is the stacking pitch between the scaffolding plates 1 which are continuous in the vertical direction. In the present embodiment, the vertical dimension of the scaffolding plate main body 2 is 42 mm, which is smaller than the outer diameter dimension (45 mm) of the horizontal member.

Further, the convex portions 15 and the concave portions 16 provided on the upper plate 8a and the lower plate 8c of the frame material 8 are fitted to each other when the scaffolding plates 1 are laminated. This makes it possible to prevent the scaffolding plate 1 from being displaced.

The locking hooks 3 are all provided at the same positions in the width direction of the scaffolding plate main body 2. However, in the present embodiment, since the hook member 3 is configured so that the upper surface of the scaffolding plate main body 2 and the horizontal member 102 are at the same height, the curved portion 26 projects above the scaffolding plate main body 2. That is, the vertical dimension of the hook member 3 is larger than the stacking pitch of the scaffolding plate main body 2. The locking hook 3 of the scaffolding plate 1 according to the present embodiment has the hook member 20 and the locking member 30 devised so that the upper surface of the scaffolding plate main body 2 has the same height as the horizontal member 102 and interferes with the lamination. This can be avoided by configuring the hook member 20 and the lock member 30.

The hook member 20 has a stepped portion 25 and a curved portion 25 continuous with the stepped portion 25 at the upper edge of the upper horizontal portion 23. As described above, the step portion 25 is located above the upper surface 2u of the scaffolding plate main body 2, and the difference A in height level between the two is the lower end 21l of the base end side vertical portion 21 and the lower surface of the scaffolding plate main body 2. It is almost the same as the height difference B from 2l. Further, the position of the step portion 25 in the length direction is located closer to the scaffolding plate main body 2 than the latest position 24p of the locking groove 24 with respect to the scaffolding plate main body 2.

As a result, when the scaffolding plates 1 are laminated, the lower end 21l of the base end side vertical portion 21 comes into contact with the stepped portion 25.

Since the lower end 21l of the base end side vertical portion 21 comes into contact with the step portion 25, the curved portion 26 of the hook member located on the lower side is arranged in the locking groove 24. Further, since the portion located below the lower end 22a of the tip-side vertical portion 22 at the time of stacking is lower than the upper end of the curved portion 26, the tip end 22a of the tip-side vertical portion 22 interferes with the curved portion 26. There is nothing to do. Further, since the curved portion 26 is partially located in the locking groove 24, it is possible to prevent the scaffolding plate 1 from being displaced in the length direction.

With the above configuration, it is possible to prevent the hook members 20 from interfering with each other, and the scaffolding plates 1 can be stacked in the vertical direction with few gaps. Further, since the lock member 30 is arranged on one side of the hook member 20 in the width direction, the lock member 30 and the hook member 20 do not interfere with each other.

The lock member 30 is configured such that the vertical dimension is slightly longer than the vertical dimension of the scaffolding plate main body 2. Further, as shown in FIG. 9, the lock member 30 is positioned below the upper surface of the scaffolding plate main body 2 at the fixed position. As a result, the lower protruding portion 32 located at the lower end of the lock member 30 is located below the lower surface of the scaffolding plate main body 2. Therefore, the scaffolding plate 1 according to the present embodiment is provided with a relief portion 35 at the lower edge of the lock member 30 to prevent the lock members 30 from interfering with each other in the vertical direction.

Specifically, the relief portion 35 located at the lower edge of the lock member 30 is located slightly above the lower surface 2l of the scaffolding plate main body 2. That is, the vertical dimension of the relief portion 35 of the lock member is slightly shorter than the vertical dimension of the scaffolding plate main body 2.

Further, the relief portion 35 is configured to have substantially the same length direction as the upper edge 36 of the lock member 30, and the upper side of the relief portion 35 and the upper edge 36 of the lock member 30 are parallel to each other. Is configured in. As a result, the upper edge 36 can be stored in the relief portion 35 at the time of stacking. Therefore, vertical interference between the lock members 30 is prevented.

According to the scaffolding plate according to the present embodiment, the hook portion 20 of the locking hook 3 has a step extending in a direction along the lower end of the curved portion 26 having the upper end curved upward and the base end side vertical portion 21. Since the scaffolding plate 1 has the upper horizontal portion 23 having the portion 25, when the scaffolding plates 1 are stacked in the vertical direction, the lower end 21l of the base end side vertical portion abuts on the step portion 25 and the curved portion 26 of the locking groove 24. Placed in the opening.

Further, since the hook member 30 of the locking hook can slide up and down between the release position and the fixed position and has a relief portion 35 at the lower edge, when the scaffolding plates for temporary scaffolding are stacked in the vertical direction. , The upper end 36 of the lock member of the locking hook of the temporary scaffolding scaffolding plate laminated below can be accommodated.

Therefore, the locking hooks located within the thickness dimension of the scaffolding plate body do not interfere with the locking hooks when they are stacked in the vertical direction. Therefore, a plurality of temporary scaffolding scaffolding plates can be positioned and stacked in the horizontal direction.

The present invention is not limited to the above embodiment, and can be implemented in various other aspects.

1 Scaffolding plate 2 Scaffolding plate body 3 Locking hook 4 Gap closing member 5 Top plate part 6 Frame part 7 Tread plate 8 Frame material 8a Frame material upper plate 8b Frame material middle plate 8c Frame material lower plate 9 Base end side end 10 Gap 11 Upper surface 12 Lower surface 13 Locking member 14 Reinforcing groove 15 Convex 16 Recess 20 Hook member 21 Base end side vertical part 22 Tip side vertical part 23 Upper horizontal part 24 Locking groove 25 Step part 26 Curved part 27 Fixing pin 30 Lock member 31 Long hole 32 Lower protruding part 33 Inner peripheral edge 34 Upper protruding part 35 Relief part 36 Upper edge 100 Temporary scaffolding 101 Strut 102, 102a Horizontal member 103 Flange

Claims (5)

A scaffolding board main body that is hung between the horizontal members of a temporary scaffolding building frame having a support column provided with attachment portions at predetermined intervals and a horizontal member fixed to the attachment portion of the support column and has a predetermined thickness. , A scaffolding board for temporary scaffolding having a locking hook that is attached so as to project from both ends of the scaffolding board body and can be engaged with the horizontal member.
The locking hook
The base end side vertical portion connected to the scaffold plate body, the tip end side vertical portion parallel to the base end side vertical portion, and the upper side located between the tip end side vertical portion and the base end side vertical portion and curved upward. It has a horizontal portion, a locking groove surrounded by a vertical portion on the tip end side, a vertical portion on the base end side, and an upper horizontal portion and an opening at the lower end, and the upper end of the locking groove has the same height as the upper surface of the scaffold plate main body. Now, with the hook member configured so that the lower end of the locking groove is located above the lower surface of the scaffold plate body.
A fixed position provided at one end in the width direction of the vertical portion on the base end side of the hook member, which extends downward from the lower surface of the scaffolding plate main body and can partially close the opening of the locking groove, and the scaffolding plate main body. It is slidable with respect to the hook member from the release position located above the lower surface of the scaffolding plate, and at the same time as sliding from the fixed position to the scaffolding plate main body side, it slides upward and is arranged at the release position. With a lock member,
The upper horizontal portion of the hook member is located at the root portion on the scaffolding plate main body side with a step portion extending in the direction along the lower end of the base end side vertical portion and a step portion that is continuous with the step portion and is positioned on the lower side when laminated in the vertical direction. It has a curved portion that is curved upward so that the hook member to be used is arranged in the locking groove.
The lock member has a relief portion at the lower edge capable of accommodating the upper end of the lock member of the locking hook laminated below at the time of stacking.
The relief portion includes an upper side, a base end side extending downward from the end of the upper side on the scaffolding plate main body side, and a tip side side extending downward from the end of the upper side on the locking groove side. , And the base end side side is in contact with the base end side edge of the temporary scaffolding scaffolding plate laminated below, and the tip end is A scaffolding plate for temporary scaffolding, characterized in that the side side contacts the edge on the tip end side of the locking member of the scaffolding plate for temporary scaffolding laminated below. The scaffolding plate for temporary scaffolding according to claim 1, wherein the locking member is provided on a side surface in the width direction of a vertical portion on the base end side. The scaffolding plate main body includes a top plate portion in which a plurality of U-shaped cross-section tread plates are arranged side by side in the width direction.
The scaffolding plate for temporary scaffolding according to claim 1 or 2, further comprising a frame portion provided around the top plate portion. 3. The top plate portion is characterized in that the plurality of tread plates are arranged side by side in the width direction with a gap, and a locking member extending in the width direction is provided in the vicinity of the end portion of the top plate portion. Scaffolding board for temporary scaffolding described in. The frame portion is composed of a frame member having a U-shaped cross section arranged along the end portion of the top plate portion, and the upper plate and the lower plate of the frame member have uneven portions that are fitted to each other. The scaffolding board for temporary scaffolding according to claim 3 or 4, which is characterized.

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