JP6926741B2 - Scaffolding board - Google Patents

Description

The present invention relates to a scaffolding board that is laid between horizontal timbers of scaffolding building frames that face each other and are provided at regular intervals in a temporary scaffolding used at a construction work site or the like.

Temporary scaffolding used at construction work sites, etc., consists of multiple columns made of steel pipes at predetermined intervals in the girder direction (direction along the wall surface of the building) and the beam direction (direction perpendicular to the wall surface of the building). A temporary scaffolding building frame is formed by attaching horizontal members made of steel pipes to columns adjacent to the girder direction, and a scaffolding plate is hung between the horizontal members adjacent to the beam direction. Will be done. Here, the columns are provided with mounting portions for fixing the horizontal members and the like at regular intervals, and the building frame for temporary scaffolding is assembled by fixing the horizontal members to the mounting portions.

The scaffolding board of this temporary scaffolding has a scaffolding board main body in which a floor board is attached to an elongated flat rectangular cloth frame, and hook members attached to both ends of the scaffolding board main body so as to project from the scaffolding board main body. The scaffolding plate having this configuration is fixed by being hung between adjacent horizontal lumbers by hooking the hook members at both ends on the horizontal lumbers of the temporary scaffolding from above.

By the way, when the scaffolding board having the above configuration is attached to the scaffolding frame, the hook member is attached so as to extend from the end of the scaffolding board main body, so that a gap is formed between the horizontal member and the scaffolding board main body. NS. There is a risk that tools, building materials, etc. will fall from the gap during work.

For this reason, for example, Patent Document 1 (Japanese Unexamined Patent Publication No. 2008-45398) discloses a dedicated member that is attached after the scaffolding plate is fixed and closes the gap so that a gap does not occur between adjacent scaffolding plates. ing. However, since it is a member different from the scaffolding board, there are problems such as high cost and poor workability because it is attached later.

Further, in order to solve the above-mentioned problem of the gap closing member, various scaffolding plates in which a gap filling plate is provided in the scaffolding plate main body are known. For example, in Patent Document 2 (Japanese Patent Laid-Open No. 2001-182315) and Patent Document 3 (Japanese Patent Laid-Open No. 2001-214608), gaps are filled between hook members arranged so as to project from both ends of the scaffolding plate main body. A scaffolding plate is described that includes a plate, and the gap filling plate is configured to extend to approximately half the position of a horizontal member in a plan view.

Further, in Patent Document 4 (Japanese Unexamined Patent Publication No. 2005-9127), a gap filling plate is provided only on one end side between hook members arranged so as to project from both ends of the scaffolding plate main body, and the gap filling plate is provided. Describes a scaffolding board configured to have a length that completely covers the horizontal member in plan view.

Further, in Patent Document 5 (Japanese Patent Laid-Open No. 2008-231804) and Patent Document 6 (Japanese Patent Application Laid-Open No. 1383188), as in Patent Document 2 and Patent Document 3, the position of approximately half of the horizontal member in a plan view is obtained. A scaffolding plate provided with a gap filling plate configured to extend to is described, and as the shape of the gap filling plate, various shapes such as a flat plate shape and a triangular shape are described from the side view.

Japanese Unexamined Patent Publication No. 2008-45398 Japanese Unexamined Patent Publication No. 2001-214608 Japanese Unexamined Patent Publication No. 2001-182315 Japanese Unexamined Patent Publication No. 2005-9127 Japanese Unexamined Patent Publication No. 2008-231804 Design Registration No. 1383188

However, in all of the scaffolding plates of the above patent documents, since the gap filling plate is arranged so as to project above the horizontal member in a plan view, the gap filling plate is temporarily installed such as a connecting mechanism between the support column and the horizontal member and the support column itself. There is a problem that it interferes with the scaffolding member and causes a problem in assembly workability during use.

Further, since the gap filling plate of Patent Documents 2 and 3 and the like is configured so that the plate-shaped plate protrudes to the extent that it can be arranged with almost no gap from the gap filling plate of the adjacent scaffolding plate, it can be transported to a high place. There was a problem that the gap filling plate was caught during handling and the workability was deteriorated.

Therefore, the technical problem to be solved by the present invention is to provide a scaffolding board for a temporary scaffold that is easy to assemble and has excellent handling workability such as transportation.

The present invention provides a scaffolding board for a 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. Being done
A hook member provided so as to project from both ends of the scaffolding plate main body and engaging with the horizontal member, and the scaffolding plate main body provided so as to project from both ends of the scaffolding plate main body between the hook members and the said. A scaffolding board provided with a gap closing member that closes a gap formed between horizontal timbers.
The gap closing member includes an upper surface portion extending in a direction along the upper surface of the scaffolding plate main body, and a lower surface portion extending from the tip of the upper surface portion to the end surface of the scaffolding plate, and is surrounded by the upper surface portion and the lower surface portion. It is constructed in a substantially triangular shape with a hollow cross-sectional view that has a space.
Provided is a scaffolding plate characterized in that a lower through hole is formed at an intermediate position in the width direction of the lower surface portion for the mounting portion of the support column to enter the space.

According to the second aspect of the present invention, there is provided the scaffolding plate of the first aspect, further characterized in that an upper through hole is formed at an intermediate position in the width direction of the upper surface portion.

According to the third aspect of the present invention, the scaffolding plate of the second aspect is provided, wherein the lower through hole is configured to be wider than the upper through hole.

According to the fourth aspect of the present invention, the upper surface portion is configured to have a protruding width shorter than that of the locking portion of the horizontal member of the hook member, from the first to the third. A scaffolding board of any one of the embodiments is provided.

According to the fifth aspect of the present invention, the lower surface portion provides a scaffolding plate according to any one of the first to fourth aspects, which is configured to abut the end surface of the scaffolding plate main body.

According to the present invention, since the gap closing member is configured to have a triangular cross-sectional view, it is possible to give the gap closing member a predetermined thickness, and there are few problems such as being caught by other members during transportation. .. Further, since the gap closing member having a triangular cross-sectional view forms a hollow space surrounded by the upper surface portion and the lower surface portion and further has through holes formed in the lower surface portion, the gap closing members are provided in the columns at predetermined intervals. The attached mounting portion enters the lower through hole of the lower surface portion of the gap closing member, so that interference between the two does not occur. Therefore, it is also possible to use a so-called hang-up to fix the scaffolding plate by sandwiching the support column, and it is possible to widen the range of the assembly work and facilitate the workability.

It is a top view which shows the structure of the scaffolding board which concerns on 1st Embodiment of this invention. It is a partially enlarged perspective view of the scaffolding board end portion of FIG. It is a partially enlarged perspective view of the scaffolding board end portion of FIG. 1 seen from the back surface side. It is sectional drawing which shows the structure of the locking hook and the gap closing member of the scaffolding plate of FIG. It is a top view which shows typically the structure of the upper surface part of the gap closing member of the scaffolding plate of FIG. It is a bottom view which shows typically the structure of the lower surface part of the gap closing member of the scaffolding plate of FIG. It is a perspective view which shows the state of the scaffolding board end portion when the scaffolding board of FIG. 1 is hung on a temporary scaffolding building frame again. It is sectional drawing which shows the positional relationship between the flange and the gap closing member in FIG. 7. It is a perspective view which shows the state which the scaffolding board which concerns on 2nd Embodiment of this invention is hung on the building frame 110 for temporary scaffolding again. It is a perspective view explaining the structure of the building frame for temporary scaffolding to which the scaffolding board concerning this embodiment is attached.

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

(First Embodiment)
FIG. 1 is a plan view showing the structure of the scaffolding plate according to the first embodiment of the present invention. FIG. 2 is a partially enlarged perspective view of the end portion of the scaffolding plate of FIG. FIG. 3 is a partially enlarged perspective view of the scaffolding plate end portion of FIG. 1 as viewed from the back surface side. The scaffolding board 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. 10, the temporary scaffold 100 arranges columns 101 provided with flanges 103 in a grid pattern at predetermined intervals in the girder direction and the beam-to-beam direction, and fixes the horizontal member 102 to the flange 103. It can be assembled by doing. The horizontal lumber 102 to which the scaffolding plate 1 is fixed is arranged so as to connect adjacent columns in the beam-to-beam direction, but the horizontal lumber 102a is also provided in the girder direction to reinforce the temporary scaffolding building frame. It may be erected.

The support column 101 is made 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 length direction. 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, and by inserting a wedge into the connecting hole, the horizontal member 102 and the support column are provided. 101 is fixed.

As shown in FIG. 1, the scaffolding plate 1 is arranged between the scaffolding plate main body 2 formed in a rectangular shape, the locking hooks 3 provided on both ends in the longitudinal direction of the scaffolding plate main body 2, and the locking hooks 3. The gap closing member 4 is provided.

The scaffolding plate main body 2 is integrally molded, and the side frame 5 and the side that form the outer edge of the scaffolding plate main body 2 formed in a rectangular shape by combining bar members having a U-shaped plate-shaped member are combined with each other. It is composed of a top plate 6 fixed to the frame 5. In this embodiment, since the side frame 5 has a large width and length, the side frame 5 is provided with a central beam 7 extending in the longitudinal direction and a beam in the width direction (not shown).

The top plate 6 is made of punching metal provided with a plurality of through holes. As the top plate 6, a mesh-shaped expanded metal may be used.

As shown in FIG. 4, the locking hooks 3 provided at both ends of the side frame 5 on the longitudinal side are locked to the horizontal member 102 to connect the treads. The locking hook 3 is attached to the end faces of both ends of the scaffolding plate main body 2 by rivets or welding on the base end side.

The locking hook 3 is a plate-shaped member having a U-shaped engaging groove 8a at its tip that can be engaged with the horizontal member 102 from above, and a drop that is slidably provided on the hook body. It is equipped with a prevention claw 9. As shown in FIG. 4, the fall prevention claw 9 has two elongated holes 9a, and is slidably provided on the hook main body 8 by a fixing pin 10 provided on the hook main body 8.

In the present embodiment, the locking hook 3 is configured such that the distance from the end faces 2a at both ends of the scaffolding plate main body 2 to the engaging groove 8a is longer than the protruding width from the support of the flange 103. ..

The engaging groove 8a is configured so that the upper end portion thereof is substantially the same height as the upper surface of the scaffolding plate main body 2 and the top plate 6, and when the scaffolding plate 1 is engaged with the horizontal member 102, the horizontal member is formed. The upper surface of the 102 is configured to have substantially the same height as the top plate 6.

When the locking hook 3 is engaged with the horizontal member 102, the fall prevention claw 9 is moved upward to open the lower side of the engaging groove 8a of the locking hook 3 and the horizontal member 102 is moved from the upper side. By fitting the locking hook 3 into the engaging groove 8a and then moving the fall prevention claw 9 downward, the locking claw 9 is arranged under the horizontal member 102, so that the scaffolding plate is blown up or the like. Prevent the fall of 1.

Since the locking hooks 3 attached to both ends of the scaffolding plate main body 2 are attached with their attachment positions slightly offset from each other, a plurality of scaffolding plates 1 are continuous with each other in the longitudinal direction between the horizontal members 102. When they are hung, both locking hooks do not interfere with each other, and the gap generated around the locking hooks can be eliminated as much as possible.

As shown in FIGS. 2 and 3, the gap closing member 4 is fixed to the end faces 2a at both ends of the scaffolding plate main body 2 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. The eleven is continuously provided with a lower surface portion 12 extending in an oblique direction, and the inside is hollow. In the present embodiment, the lower surface portion 12 is in contact with the end faces 2a at both ends of the scaffolding plate main body 2, but the lower surface portion 12 is configured to be in contact with the lower end of the side frame 5 at different inclination angles. You may.

Further, the upper surface portion 11 and the lower surface portion 12 are provided with an upper through hole 13 and a lower through hole 14, respectively. As shown in FIGS. 5 and 6, the upper through hole 13 and the lower through hole 14 are provided in the intermediate portion in the width direction of the upper surface portion 11 and the lower surface portion 12, respectively. Further, the widthwise dimensions A and B of the upper through hole 13 and the lower through hole 14 are not particularly limited.

The upper through hole 13 is preferably configured to have a small width direction dimension A in order to prevent it from falling. Specifically, although it depends on the width direction dimension of the scaffolding plate 1, it is preferably about 1 to 3 cm.

The lower through hole 14 is preferably larger than the width direction dimension A of the upper through hole 13 in order to prevent interference with the flange described later. Specifically, the width dimension can be about 10 to 60% of the width dimension of the lower surface portion 12.

The upper through hole 13 and the lower through hole 14 can be suitably used, for example, when locking a hanging member such as a crane used for suspending the scaffolding plate 1 and lifting it to a high place. That is, since the upper through hole 13 is provided with a small width direction dimension A at the center in the width direction of the gap closing member 4 provided at the end of the scaffolding plate 1, the hanging member is provided in the upper through hole 13. When the hooks and the like are fitted and hung, the hooks come into contact with the peripheral edges of the through holes of the upper surface portion 11 and the lower surface portion 12, so that the hanging posture is stable and the scaffolding plate 1 can be safely raised and lowered.

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 FIG. 4, the tip portion 4a of the gap closing member 4 is very close to the peripheral edge portion 8b of the engaging groove 8a of the locking hook 3 and is distal to the peripheral edge portion 8b when viewed from the side. It is configured so that it does not protrude. Specifically, as shown in FIG. 4, the tip portion 4a of the locking hook is located distal to the peripheral edge portion 8b of the engaging groove 8a when viewed from the side surface, and does not overlap with the engaging groove 8a. It is configured.

By configuring the gap closing member 4 in this way, as shown in FIG. 7, it is possible to lock the scaffolding plate 1 to the horizontal member 102 with the support column sandwiched between them, so that the scaffolding plate 1 can be hooked again, and the assembly work on the temporary scaffolding can be performed. The width of the work can be widened to facilitate workability.

Further, as described above, since the upper edge of the engaging groove 8a, the upper surface of the scaffolding plate main body 2, and the upper surface portion 11 of the gap closing member 4 are all at the same height, the tip of the gap closing member 4 and the horizontal member 102 are all at the same height. The gap between the two can be reduced, and even if the gap closing member 4 is not projected so as to cover the upper side of the horizontal member 102, it is possible to effectively prevent the tool or the like from falling.

When the scaffolding plate 1 is hung on the horizontal member 102 again, the support columns are present between the locking hooks 3. In the scaffolding plate 1 according to the present embodiment, the flange 103 provided on the support column 101 has a gap closing member 4 due to a lower through hole 14 provided on the lower surface portion 12 of the gap closing member 4, as shown in FIG. It enters the hollow portion and interferes with the gap closing member 4 is avoided.

According to the scaffolding plate according to the present embodiment, since the gap closing member 4 is formed in a triangular cross-sectional view, it is possible to give the gap closing member 4 a predetermined thickness, and other members can be provided during transportation or the like. There are few problems such as getting caught in. Further, since the gap closing member 4 having a triangular cross-sectional view forms a hollow space surrounded by the upper surface portion 11 and the lower surface portion 12, and further has a lower through hole 14 formed in the lower surface portion, the support column is formed. The flanges 103 provided in the 101 at predetermined intervals enter the lower through hole 14 of the lower surface portion 12 of the gap closing member, so that interference between the two does not occur. Therefore, it is also possible to use a so-called hang-up to fix the scaffolding plate 1 by sandwiching the support column, and it is possible to widen the width of the assembly work and facilitate the workability.

(Second Embodiment)
FIG. 9 is a perspective view showing a state in which the scaffolding plate 21 according to the second embodiment of the present invention is hung on the temporary scaffolding building frame 110 again. The scaffolding plate 21 according to the present embodiment has substantially the same configuration as the scaffolding plate 1 according to the first embodiment, except that the top plate is made of the expanded metal 26.

Further, the temporary scaffolding building frame 110 in the present embodiment has a U-shaped cross section in which the attachment portions used for connecting to the horizontal members 112 provided on the columns 111 have openings in the vertical direction called frames 113a and 113b. It is composed of metal members.

Four pieces are provided as a set with a phase difference of 90 degrees around the support column 111, and the positions in the vertical direction are different. The upper frame 113a and the lower frame 113b are arranged with a phase difference of 180 degrees from each other.

The frames 113a and 113b and the horizontal member 112 are fixed by inserting wedges 112a provided at both ends of the horizontal member 112 from above the frames 113a and 113b. The piece for fixing the horizontal member 112 may be either the upper piece 113a or the lower piece 113, but FIG. 9 shows a state in which the horizontal member is fixed to the lower piece 113b.

Further, since the upper edge of the engaging groove of the locking hook 23, the upper surface of the scaffolding plate main body 22, and the upper surface portion 31 of the gap closing member 24 are all configured to have the same height, the tip of the gap closing member 24 is formed. The gap between the and the horizontal member 112 can be reduced, and even if the gap closing member 24 is not projected so as to cover the upper side of the horizontal member 112, it is possible to effectively prevent the tool or the like from falling.

When the scaffolding plate 21 according to the present embodiment is hung on the temporary scaffolding building frame 110 in this state again, the upper piece 113a facing the end surface of the scaffolding plate 21 interferes with the gap closing member 24. Therefore, in the scaffolding plate 21 according to the present embodiment, similarly to the scaffolding plate 1 according to the first embodiment, the upper piece 113a is provided with the lower through hole 34 provided in the lower surface portion 32 of the gap closing member 24. It enters the hollow portion of the gap closing member 24 and avoids interference with the gap closing member 24.

Further, the upper through hole 33 and the lower through hole 34 can be suitably used, for example, when locking a hanging member such as a crane used for suspending the scaffolding plate 21 and lifting it to a high place. can.

As described above, according to each embodiment of the present invention, since the gap closing member is configured to have a predetermined thickness, there are few problems such as being caught by other members during transportation or the like. Further, since the region surrounded by the upper surface portion 11 and the lower surface portion 12 of the gap closing member 4 is hollow and the lower through hole 14 is formed in the lower surface portion, the support columns 101 are provided at predetermined intervals. The mounting part of the support can be accommodated, and interference with the support does not occur.

The present invention is not limited to the above embodiment, and can be implemented in various other aspects. For example, in the above embodiment, the upper edge of the engaging groove 8a, the upper surface of the scaffolding plate main body 2, and the upper surface portion 11 of the gap closing member 4 are all set to the same height, so that the gap between the tip and the horizontal member 102 is reduced. However, for example, if at least the edge on the front side of the engaging groove 8a and the tip of the gap closing member 4 are very close to each other, between the upper surface portion 11 and the upper end of the horizontal member and the upper surface of the scaffolding plate main body 2. Even if a step is provided, the gap with the horizontal member 102 can be reduced. That is, a slight step may be provided between the upper surface portion 11 of the gap closing member 4, the horizontal member 102, and the upper surface of the scaffolding plate main body 2.

1,21 Scaffolding board 2,22 Scaffolding board body 2a Both ends end face 3,23 Locking hook 4,24 Gap closing member 4a Tip part 5,25 Side frame 6,26 Top plate 7,27 Central beam 8 Hook body 8a Joint groove 8b Peripheral part 9 Fall prevention claw 9a Long hole 10 Fixing pin 11, 31, Upper surface part 12, 32 Lower surface part 13, 33 Upper through hole 14, 34 Lower through hole 100, 110 Temporary scaffolding 101, 111 Strut 102, 102a, 112 Horizontal member 112a Wedge 103 Flange 113a, 113b Frame

Claims (5)

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 hook member that is provided so as to project from both ends of the scaffolding plate body and can be engaged with the horizontal member,
A scaffolding plate provided between the hook members so as to project from both ends of the scaffolding plate main body and a gap closing member for closing a gap formed between the scaffolding plate main body and the horizontal member.
The gap closing member includes an upper surface portion extending in a direction along the upper surface of the scaffolding plate main body, and a lower surface portion extending from the tip of the upper surface portion to the end surface of the scaffolding plate, and is surrounded by the upper surface portion and the lower surface portion. It is constructed in a substantially triangular shape with a hollow cross-sectional view that has a space.
A scaffolding plate, characterized in that a lower through hole is formed at an intermediate position in the width direction of the lower surface portion for allowing the mounting portion of the support column to enter the space. The scaffolding plate according to claim 1, further comprising an upper through hole formed at an intermediate position in the width direction of the upper surface portion. The scaffolding plate according to claim 2, wherein the lower through hole is configured to have a width wider than that of the upper through hole. The scaffolding plate according to any one of claims 1 to 3, wherein the upper surface portion is configured to have a protruding width shorter than that of the locking portion of the horizontal member of the hook member. .. The scaffolding plate according to any one of claims 1 to 4, wherein the lower surface portion is configured to abut on the end surface of the scaffolding plate main body.

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