JP2022026079A - Work scaffold plate for temporary scaffold, and manufacturing method of mesh panel of the same - Google Patents

Abstract

To provide a work scaffold plate for a temporary scaffold comprising a slipping prevention function capable of suppressing worker's slipping, and to provide a manufacturing method of a mesh panel of the same.SOLUTION: In a gap closing plate that is a work scaffold plate for a temporary scaffold, a plurality of substantially rhombic opening portions 14 is formed in a mesh panel surrounded by a framework penetrate in a thickness direction of the mesh panel inside an outer contour portion 15 with a substantially rhombic shape in plan view. A part of the outer contour portion 15 is a common portion 16 common between two opening portions 14 that are provided so as to be adjacent to each other in a sloped direction having an angle with respect to both of two directions D1, D2 which are respectively perpendicular to the thickness direction of the mesh panel and which are perpendicular to each other. In at least one face of a surface and a rear face of the mesh panel, a groove 19 whose depth direction is the thickness direction of the mesh panel, is formed in at least a part of the outer contour portion 15.SELECTED DRAWING: Figure 6

Description

The present invention relates to a work scaffolding board used for temporary scaffolding constructed at various work sites such as construction work, demolition work, painting work, civil engineering work, and a method for manufacturing a mesh panel as the main body of the work scaffolding board. It can be used for gap closing plates for closing gaps in temporary scaffolding and general work scaffolding plates with standardized dimensions.

The following Patent Document 1 shows a work scaffolding board used for a temporary scaffolding constructed at a construction work site or the like. This work scaffolding board, which is a gap closing plate for closing the gap in the temporary scaffolding, is the main body of the work scaffolding board, and the mesh panel provided with a large number of openings and the outer edge of this mesh panel. It is configured to include a frame that surrounds the whole. Since the mesh panel is an expanded metal, a large number of the openings formed in the mesh panel are formed in the thickness direction of the mesh panel inside the outer contour portion having a substantially rhombic shape in a plan view. It has a substantially rhombic shape formed through the mesh panel, and the outer contour and the opening are arranged in two directions, which are orthogonal to the thickness direction of the mesh panel and orthogonal to each other. It is set up. Further, each opening is provided between two openings provided adjacent to each other in one of the two directions, and the other of the two directions with respect to the opening. The two openings are arranged so as to be offset in the direction of the above, and a part of the outer contour is provided adjacent to each other in an oblique direction forming an angle with respect to both of the two directions. It is a common part that is common to.

Design Registration No. 1611552

The work scaffolding board including the clearance closing board used for the temporary scaffolding is to be equipped with a non-slip function that can suppress the worker's slip because the work is done by the worker riding on and walking. Is preferable.

An object of the present invention is to provide a method for manufacturing a temporary scaffolding work scaffolding board having a non-slip function capable of suppressing an operator's slip and a mesh panel thereof.

The work scaffolding board for temporary scaffolding according to the present invention is a work scaffolding board for temporary scaffolding including a mesh panel provided with a large number of openings and a frame frame surrounding the entire outer edge of the mesh panel. The opening has a substantially rhombic shape formed through the mesh panel in the thickness direction inside the outer contour portion having a substantially rhombic shape in a plan view. The outer contour portion and the opening are arranged side by side in two directions in which the thickness direction of the mesh panel is orthogonal to each other and the opening is orthogonal to each other, and each of the openings is described. Between the two openings provided adjacent to each other in one of the two directions, the openings are offset from the other of the two directions. It is an opening, and a part of the outer contour portion is common to the two openings provided adjacent to each other in an oblique direction forming an angle with respect to both of the two directions. In the temporary scaffolding work scaffolding board which is a common portion, at least one of the front and back surfaces of the mesh panel which is both sides in the thickness direction of the mesh panel has at least one of the outer contour portions. A part of the mesh panel is characterized in that a groove is formed in which the thickness direction is the depth direction.

Therefore, in the work scaffolding board for temporary scaffolding according to the present invention, at least one of the front and back surfaces of the mesh panel, which is both sides in the thickness direction of the mesh panel, has at least one outer contour portion. A groove is formed in the portion where the thickness direction of the mesh panel is the depth direction. Therefore, the groove causes the temporary scaffolding work scaffolding plate according to the present invention to slip the worker. It is equipped with a non-slip function that can suppress slipping, which enables the operator to effectively suppress slipping when walking on a mesh panel that is the main body of the work scaffolding board for temporary scaffolding.

In the above temporary scaffolding work scaffolding board, the groove can be formed at an arbitrary portion of the outer contour portion, and this portion may be, for example, the above-mentioned common portion.

Further, in the above-mentioned common portion, in the one direction of the two directions, a large number of common portions having tilting directions with respect to the one direction are alternately arranged at intervals in the one direction. Two common parts that are provided and are adjacent to each other at the distance in one direction and whose inclination directions are opposite to each other are linear in one direction. A groove may be formed in this straight line portion when the straight line portion is connected by a straight line portion which is a part of the outer contour portion.

Then, when the groove is formed in the straight portion in this way, the groove may be formed in the above-mentioned common portion as well. According to this, since the groove is formed in both the straight portion and the common portion, the groove can secure the anti-slip function that can more effectively suppress the slip of the operator.

Further, as described above, on at least one of the front and back surfaces of the mesh panel, which are both sides in the thickness direction of the mesh panel, at least a part of the outer contour portion has the thickness direction of the mesh panel. In order to form a groove in the depth direction, the groove may have the same width dimension in the depth direction of the groove, or the width dimension gradually increases in the depth direction of the groove. It may be larger, or the width dimension may be gradually reduced in the depth direction of the groove.

Of these, if the width of the groove is gradually reduced in the depth direction of the groove, foreign matter such as mud that has entered the inside of the groove can be easily removed from the groove.

Further, the groove may be formed on only one of the front and back surfaces, which are both sides in the thickness direction of the mesh panel, or may be formed on both the front and back surfaces.

When the grooves are formed on both the front and back surfaces of the mesh panel in the thickness direction, when the worker arranges the temporary scaffolding work scaffolding plate according to the present invention on the temporary scaffolding, the grooves are formed on both the front and back surfaces of the mesh panel. Regardless of which side is placed on the upper side, the groove can suppress the slip of the operator.

Further, when the grooves are formed on both the front and back surfaces of the mesh panel in the thickness direction in this way, both the front and back surfaces of the mesh panel are formed in the same shape in a plan view, and the mesh panel is also formed. The front and back surfaces of the mesh panel on the same side as the front and back surfaces of the above-mentioned frame frame, which is a member surrounding the outer edge portion of the above-mentioned frame, may also be formed in the same shape in a plan view.

In this way, the grooves are formed on both the front and back surfaces, which are both sides in the thickness direction of the mesh panel, and the front and back sides of the mesh panel are formed in the same shape in a plan view, and the outer edge portion of the mesh panel is formed. If the front and back sides of the mesh panel, which is the surrounding member, have the same shape as the front and back sides of the mesh panel in a plan view, the front and back shapes of the entire temporary scaffolding work scaffolding board will be the same. Therefore, when the worker arranges the temporary scaffolding work scaffolding board on the temporary scaffolding, the worker does not need to distinguish the front and back of the temporary scaffolding work scaffolding board, so that this arrangement work can be easily performed. become able to.

Further, in the temporary scaffolding work scaffolding plate according to the present invention, ridges may be formed on at least one of the front and back surfaces of the frame.

When a ridge is formed on at least one of the front and back surfaces of the frame in this way, the worker arranges the temporary scaffolding work scaffold plate on the temporary scaffold with the side on which the ridge is formed facing up. As a result, the ridge has a non-slip function to suppress slipping like the groove. Therefore, the ridge also prevents the worker who got on the frame of the temporary scaffolding work scaffolding board from slipping. It will be possible to suppress it.

The ridges may be formed on only one of the front and back surfaces of the frame, or may be formed on both the front and back surfaces of the frame.

Of these, when the ridges are formed on both the front and back surfaces of the frame as in the latter case, slip can be suppressed by the ridges regardless of which side of the front and back surfaces of the frame is on the upper side.

In the method for manufacturing a mesh panel of a temporary scaffolding work scaffolding board according to the present invention, a large number of openings are provided, and the entire outer edge portion is surrounded by a frame, whereby the main body of the temporary scaffolding work scaffolding board and the main body of the temporary scaffolding work scaffolding board are formed. A method for manufacturing a mesh panel, wherein the opening is formed so as to penetrate in the thickness direction of the mesh panel inside an outer contour portion having a substantially rhombic shape in a plan view. It has a substantially rhombic shape, and the outer contour portion and the opening portion are arranged side by side in two directions in which the outer contour portion and the opening portion are orthogonal to each other in the thickness direction of the mesh panel and are orthogonal to each other. In addition, between the two openings in which each of the openings is provided adjacent to each other in one of the two directions, in the two directions with respect to these openings. The openings are arranged so as to be offset from each other in the other direction, and a part of the outer contour portion is provided adjacent to each other in an oblique direction forming an angle with respect to both of the two directions. It is a method of manufacturing a mesh panel which is a common part common to the two openings, and at least one of the front and back sides of the mesh panel material which is both sides in the thickness direction of the mesh panel. In the plane, a groove extending linearly in one of the two directions and having the thickness direction of the mesh panel material as the depth direction is formed in the other direction of the two directions. A plurality of cuts extending linearly in one direction are formed between two grooves adjacent to each other at intervals in the other direction. The cuts are formed at intervals in the direction, and the cuts are provided in the other direction with the groove sandwiched between the grooves, and the positions of the cuts are provided adjacent to each other in the other direction. The first work step for forming the mesh panel material in a staggered manner at an oblique position at an angle with respect to both of the two directions, and by expanding and deforming the mesh panel material in the other direction, respectively. It is characterized by including a second working step for expanding the cuts in the other direction and making these cuts the openings.

According to the method for manufacturing the mesh panel of the work scaffold plate for temporary scaffolding, in the first work step, the mesh is formed on at least one of the front and back surfaces, which are both sides in the thickness direction of the mesh panel in the mesh panel material. A groove that extends linearly in one of two directions that are orthogonal to the thickness direction of the panel and orthogonal to each other, and the thickness direction of the mesh panel material is the depth direction. Are formed in large numbers in the other direction of the two directions at intervals, and linearly formed in the one direction between the two grooves adjacent to each other at the intervals in the other direction. A plurality of cuts extending in one direction are formed at intervals in one direction, and each cut formed in the other direction with one groove in between is formed in the other direction. Work is to be carried out to form the cuts formed adjacent to each other in a staggered manner by making the positions offset from each other at an angle with respect to both of the above two directions. In the work process, by expanding and deforming the mesh panel material in the other direction, each cut is expanded in the other direction, and the work is performed to make these cuts into openings formed in the mesh panel. Therefore, at least one of the front and back surfaces of the mesh panel, which is both sides in the thickness direction of the mesh panel, is subjected to an expand processing method for expanding and deforming the mesh panel material in the other direction. In the outer contour portion where the opening portion is formed inside, it is possible to form a groove in which the thickness direction of the mesh panel is the depth direction.

In this method for manufacturing a mesh panel, the groove formed in the first work step may be provided on only one of the front and back surfaces of the mesh panel material, or may be formed on both the front and back surfaces of the mesh panel material. good.

Further, the mesh panel used as the main body of the temporary scaffolding work scaffolding plate according to the present invention may be formed by a processing method for expanding and deforming the mesh panel material as described above, that is, the above-mentioned expand processing method, or The mesh panel material may be formed by punching and pressing with an upper and lower die.

Further, the present invention described above can be applied not only to a general work scaffolding board for temporary scaffolding formed with standardized dimensions, but also to a gap closing plate for closing a gap in the temporary scaffolding. That is, the working scaffolding board for temporary scaffolding according to the present invention may be a general working scaffolding board used by arranging a plurality of working scaffolding boards in parallel on the temporary scaffolding, or may be a gap closing board used for closing a gap in the temporary scaffolding.

When the work scaffolding plate for temporary scaffolding according to the present invention is used as a gap closing plate used for closing a gap in the temporary scaffolding, the gap closing plate may have a rectangular shape in a plan view. Alternatively, it may be a square shape, a trapezoidal shape, or the like, and may have an arbitrary shape corresponding to the plan view shape of the gap in the temporary scaffold.

According to the present invention, it is possible to obtain an effect that the work scaffolding board for temporary scaffolding can be provided with an anti-slip function capable of suppressing the slip of the worker.

FIG. 1 is a perspective view showing a temporary scaffold provided with a gap. FIG. 2 is a diagram similar to FIG. 1 showing a state in which the gap of the temporary scaffold is closed by the gap closing plate which is the work scaffold plate for the temporary scaffold according to the embodiment of the present invention. FIG. 3 is a plan view showing a gap closing plate which is a work scaffolding plate for temporary scaffolding. FIG. 4 is a cross-sectional view taken along the line S4-S4 of FIG. FIG. 5 is a plan view of the mesh panel. FIG. 6 is an enlarged view of a part of FIG. FIG. 7 is a further enlarged view of a part of FIG. FIG. 8 is a cross-sectional view taken along the line S8-S8 of FIG. 9 is a cross-sectional view taken along the line S9-S9 of FIG. 7. FIG. 10A and 10B are views showing members constituting the frame, where FIG. 10A is a plan view of the long side frame member, and FIG. 10B is a plan view of the short side frame member. FIG. 11 is a cross-sectional view taken along the line S11-S11 of FIG. 10 (A). 12A and 12B are views showing a mesh panel material, where FIG. 12A is a side view of the mesh panel material and FIG. 12B is a plan view of the mesh panel material. 13 is an enlarged view of a part of FIG. 12, where FIG. 13A is a side view of the mesh panel material, and FIG. 13B is a plan view of the mesh panel material. FIG. 14 is a plan view showing an operation of expanding and deforming the mesh panel material by providing a large number of cuts in the mesh panel material.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a temporary scaffold 1 constructed at a construction work site or the like. The temporary scaffolding 1 is bridged between a support column 2 made of pipe material in which a plurality of columns are erected at intervals in the left-right direction and a front-rear direction, and two columns 2 arranged side by side in the front-rear direction. A work scaffolding plate 4 is included between the horizontal member 3 and the two horizontal members 3 arranged in the left-right direction, which are bridged by engaging the hook member 4A to the horizontal member 3. It is built with. In this temporary scaffold 1 shown in FIG. 1, the dimension in the length direction in the left-right direction and the dimension in the width direction in the front-rear direction are standardized dimensions, and are rectangular in a plan view. A plurality of work scaffolding plates 4 having a shape are arranged side by side in the left-right direction, and a plurality of work scaffold plates 4 are also arranged side by side in the front-rear direction. In this temporary scaffold 1, a gap 5 is formed between the work scaffold plates 4 arranged side by side in the front-rear direction due to the support columns 2.

In order to close such a gap 5, as shown in FIG. 2, a gap closing plate 10 which is a working scaffolding plate for temporary scaffolding according to an embodiment of the present invention is used, and in FIG. 2, the front and rear are closed. In order to close the gap 5 between the two work scaffolding plates 4 arranged side by side in the direction, three gap closing plates 10 having a rectangular shape in a plan view are used as a set.

FIG. 3 shows a plan view of the gap closing plate 10 which is a work scaffolding plate for temporary scaffolding, and the gap closing plate 10 having a rectangular shape in a plan view serves as the main body of the gap closing plate 10. It is composed of a mesh panel 11 made of aluminum or an aluminum alloy, and a frame frame 12 made of aluminum or an aluminum alloy that surrounds the outer edge of the mesh panel 11. Further, the frame frame 12 has a pair of long side frame members 12A having a length extending in the length direction D1 of the long side of the gap closing plate 10 and a length extending in the length direction D2 of the short side of the gap closing plate 10. The long side frame member 12A and the short side frame member 12B are arranged on the outer edge portion of the mesh panel 11, and both ends thereof in the length direction are 45 degrees. The ends of the long side frame member 12A and the short side frame member 12B, which are cut at an angle, are butted against each other and joined by welding.

FIG. 4 is a cross-sectional view taken along the line S4-S4 of FIG. As can be seen from FIG. 4, the long side frame member 12A and the short side frame member 12B have a U-shaped cross section or a substantially U-shaped cross section in which the internal space portion 13 opens toward the mesh panel 11. The outer edge portion of the mesh panel 11 is inserted into these internal space portions 13, and the mesh panel 11 is joined to the frame frame 12 by spot welding, or the outer edge portion of the mesh panel 11 is simply inserted into the internal space portion 13. Therefore, the mesh panel 11 is not connected to the frame frame 12.

In FIG. 5, only the mesh panel 11 is shown. Since the mesh panel 11 is an expanded metal, as shown in FIGS. 3 and 5, a large number of openings 14 are provided in the mesh panel 11 with the length direction D1 of the long side of the gap closing plate 10. It is regularly formed in the length direction D2 of the short side. FIG. 6 shows an enlarged view of a portion of the openings 14 shown in FIG. As shown in FIG. 6, each opening 14 is formed so as to penetrate in the thickness direction of the mesh panel 11 inside the outer contour portion 15 having a substantially rhombic shape in a plan view. The outer contour portion 15 and the opening portion 14 are formed in a substantially rhombic-shaped opening 14, and the outer contour portion 15 and the opening 14 are in two directions, which are orthogonal to the thickness direction of the mesh panel 11 and are orthogonal to each other. That is, they are arranged side by side in the length direction D1 of the long side and the length direction D2 of the short side of the gap closing plate 10 described above.

As described above, since the opening 14 and the outer contour portion 15 have a substantially rhombic shape in a plan view, each of the openings 14 has a long side length direction D1 and a short side length. Among the vertical directions D2, between two openings 14 provided adjacent to each other in the long side length direction D1, they are arranged so as to be offset from the short side length direction D2 with respect to these openings 14. The opening is 14. Further, a part of the outer contour portion 15 having a substantially rhombic opening 14 on the inside is oblique with respect to both the length direction D1 of the long side and the length direction D2 of the short side. It is a common portion 16 common to two openings 14 provided adjacent to each other in the direction.

As described above, a large number of common portions 16 which are a part of the outer contour portion 15 are provided in the length direction D1 of the long side at intervals of the length direction D1 of the long side, and these are provided. The common portion 16 is a first common portion 16A and a second common portion 16B in which the inclination directions with respect to the length direction D1 of the long side are opposite to each other, and the common portion 16 is spaced apart from each other in the length direction D1 of the long side. The first common portion 16A and the second common portion 16B, which are alternately provided, are connected by a straight portion 17 extending linearly in the length direction D1 of the long side, and the straight portion 17 is also outside. It is a part of the contour portion 15.

A large number of the first common portion 16A and the second common portion 16B, and the straight portion 17 connecting the first common portion 16A and the second common portion 16B are arranged side by side in the length direction D2 of the short side. The first common portion 16A and the second common portion 16B are alternately provided in the length direction D2 of the short side at the same position in the length direction D1 of the long side. Further, a large number of straight line portions 17 are also provided at the same position in the long side length direction D1, and among these straight line portions 17, the first common portion 16A and the second common portion 16A with respect to the long side length direction D1 are common. The two straight-line portions 17 that are close to each other in the length direction D2 of the short side due to the inclination angle of the portion 16B are connected by the connecting portion 18.

Then, a pair of first common portions 16A and a pair of first common portions 16A facing each other in diagonal directions with respect to both the length direction D1 of the long side and the length direction D2 of the short side with one opening 14 sandwiched between them. Two common portions 16B, two straight portions 17 facing each other in the length direction D2 of the short side with one opening 14 sandwiched between them, and one opening 14 sandwiched between them. The two connecting portions 18 facing each other in the length direction D1 of the side form one outer contour portion 15 that surrounds the outside of the one opening portion 14, and sandwiches the one opening portion 14. The two connecting portions 18 facing each other in the length direction D1 of the long side sandwiched between the two connecting portions 18 are common to the two openings 14 adjacent to each other in the length direction D1 of the long side. There is.

7 is a further enlarged view of a part of FIG. 6, FIG. 8 is a sectional view taken along line S8-S8 of FIG. 7, and FIG. 9 is a sectional view taken along line S9-S9 of FIG. As shown in FIGS. 8 and 9, the common portion 16 and the straight portion 17 have dimensions in the direction orthogonal to the thickness direction of the mesh panel 11 at the central portion in the thickness direction of the mesh panel 11, respectively. In other words, the height in which the plane direction dimension of the mesh panel 11 is the maximum in the common portion 16 and the straight line portion 17 is provided in the base portion 20 and is in the thickness direction of the mesh panel 11. The connection portions with the base portion 20 are the long side portions above and below the base portion 20 having the vertical dimensions, and the outer side in the thickness direction of the mesh panel 11 is the short side portion thereof. The trapezoidal upper portion 21 and the lower portion 22 are provided. Further, as shown in FIG. 9, the straight line portion 17 is provided with the connection portion 18 shown in FIGS. 6 and 7 in the base portion 20 of the straight line portion 17, and the connection portion 18 is provided. The dimension in the thickness direction of the mesh panel 11 is smaller than the dimension in the thickness direction of the mesh panel 11 in the common portion 16 and the straight portion 17, and is the same as the height dimension of the base portion 20.

As shown in FIGS. 8 and 9, the upper surface 21A of the upper portion 21 of the common portion 16 and the straight portion 17 and the lower surface 22A of the lower portion 22 of the common portion 16 and the straight portion 17 are, that is, the common portion. Grooves 19 recessed inward in the thickness direction of the mesh panel 11 are formed on both the front and back surfaces of the common portion 16 and the straight portion 17, which are the upper and lower surfaces of the straight portion 16 and the straight portion 17, and these grooves 19 are formed. , The common portion 16 and the straight line portion 17, which are part of the outer contour portion 15 shown in FIGS. 6 and 7, are continuously formed. Further, as shown in FIGS. 8 and 9, these grooves 19 are gradually reduced in width in the depth direction of the grooves 19, and the cross section of the grooves 19 of the present embodiment is formed. The shape is a trapezoidal shape in which the inside of the mesh panel 11 in the thickness direction is a short side portion.

The common portion 16 and the straight portion 17 are symmetrical with respect to the central portion in the thickness direction of the mesh panel 11, including the groove 19, and the connecting portion 18 is also formed of the mesh panel 11. Since the shape is symmetrical with respect to the central portion in the thickness direction, the entire mesh panel 11 is also symmetrical with respect to the central portion in the thickness direction of the mesh panel 11. Therefore. The front and back sides of the mesh panel 11, which are both sides in the thickness direction, have the same shape in a plan view.

10 shows the constituent members of the frame frame 12 shown in FIG. 1, FIG. 10A shows the long side frame member 12A, and FIG. 10B shows the short side frame member 12B. The long side frame member 12A and the short side frame member 12B are formed by cutting an extruded product or a pultruded product made of aluminum or an aluminum alloy as a material at an angle of 45 degrees to obtain a predetermined length dimension. Since the long side frame member 12A and the short side frame member 12B have the same cross-sectional shape perpendicular to the respective length directions, this cross-sectional shape is the long side frame. The member 12A and the short side frame member 12B are continuous in the length direction.

FIG. 11 which is a cross-sectional view taken along the line S11-S11 of FIG. 10A shows the long side frame member 12A among the cross-sectional shapes of the long side frame member 12A and the short side frame member 12B which are the same as described above. The cross-sectional shape of is shown. The long side frame member 12A has a pair of upper and lower extending portions 24 extending toward the mesh panel 11 on both sides of the mesh panel 11 in the thickness direction from the base 23 opposite to the mesh panel 11 side. As a result, the long side frame member 12A is provided with an internal space portion 13 that opens toward the mesh panel 11 as described above.

Further, on the upper surface of the upper extending portion 24, ridges 25 extending to both ends in the length direction of the long side frame member 12A are formed, and such ridges 25 are formed on the extending portion 24. A plurality of lines are provided in the extending direction, and three lines are provided in the present embodiment. Three ridges 25 are also formed on the lower surface of the lower extending portion 24, whereby the front and back surfaces of the long side frame member 12A are both sides of the mesh panel 11 in the thickness direction. Both sides have the same shape in plan view.

As described above, since the short side frame member 12B is formed in the same cross-sectional shape as the long side frame member 12A, as shown in FIG. 10B, the short side frame member 12B is formed. Three ridges 25 are formed on each of the pair of upper and lower extending portions 24 extending from the base portion 23 of the short side frame member 12B, and are both surfaces of the mesh panel 11 in the short side frame member 12B in the thickness direction. Both the front and back sides have the same shape in a plan view.

Further, as shown in FIG. 3, when the outer edge portion of the mesh panel 11 is surrounded by the frame frame 12 composed of the pair of long side frame members 12A and the pair of short side frame members 12B, these long sides are surrounded by the frame frame 12. The ridges 25 formed on the frame member 12A and the short side frame member 12B are connected to each other, whereby a quadrangular ridge ring portion surrounding the entire circumference of the mesh panel 11 is formed on both the front and back surfaces of the frame frame 12. Will be formed in three.

FIG. 12 shows a mesh panel material 30 used for forming the mesh panel 11 which is an expanded metal by an expand processing method, and FIG. 12 (A) shows a side view of the mesh panel material 30. FIG. 12B is a plan view of the mesh panel material 30. As shown in FIG. 12A, in the mesh panel material 30, a plurality of protruding portions 30A protruding from both sides in the thickness direction of the mesh panel 11 are formed on the short sides of the mesh panel 11. Of these protrusions 30A, which are arranged side by side at intervals in the length direction D2, the two protrusions 30A adjacent to each other in the length direction D2 of the short side are larger than the protrusions 30A. The mesh panel 11 is joined via a connecting portion 30B having a small dimension in the thickness direction. Further, since the mesh panel material 30 is obtained by extrusion molding or pultrusion molding using aluminum or an aluminum alloy as a material, the mesh panel material 30 protrudes as shown in FIG. 12 (B). The portion 30A and the joint portion 30B are continuous in the length direction D1 of the long side of the mesh panel 11.

13 is a partially enlarged view of FIG. 12, FIG. 13 (A) is a side view of the mesh panel material 30, and FIG. 13 (B) is a plan view of the mesh panel material 30. Since each of the projecting portions 30A is a common portion 16 and a straight line portion 17 of the mesh panel 11 shown in FIGS. 8 and 9, each projecting portion is similar to the common portion 16 and the straight portion 17. As shown in FIG. 13A, 30A has a base portion 20 and an upper portion 21 and a lower portion 22 provided above and below the base portion 20, and the upper portion 21 is provided. Grooves 19 are formed on the upper surface 21A of the upper surface and the lower surface 22A of the lower portion 22 at the time of extrusion molding or pultrusion molding. As shown in FIG. 13B, a large number of these grooves 19 formed at intervals in the length direction D2 of the short side are also continuous in the length direction D1 of the long side of the mesh panel 11. There is.

FIG. 14 shows the work to be performed after the mesh panel material 30 is obtained by extrusion molding or pultrusion molding. This work is performed at each joint portion 30B, in other words, between two grooves 19 adjacent to each other at intervals in the length direction D2 of the short side, and the length of the long side of the mesh panel 11. It is a work of forming a plurality of cuts 31 extending linearly in the longitudinal direction D1 with an interval of the length direction D1 of the long side, and sandwiching each groove 19 in between, the length direction of the short side. The positions of the cuts 31 provided in D2 adjacent to each other in the length direction D2 of the short side are set with respect to both the length direction D1 of the long side and the length direction D2 of the short side. It is a work to form a staggered shape at an oblique position. This work is performed by a processing work using a cutting tool, a processing work using a cutting blade, or a processing work using a punching die, and when this work is performed, the space between the cuts 31 is one of the joint portions 30B. Since the portion is left, the connecting portion 32 is formed by connecting the two protruding portions 30A adjacent to each other in the length direction D2 of the short side.

After performing the above work, the mesh panel material 30 is expanded and deformed by applying a pulling force T in the length direction D2 of the short side shown in FIG. 14 to the mesh panel material 30. As a result, each cut 31 expands in the length direction D2 of the short side, so that each cut 31 becomes the opening 14 shown in FIG. Further, each of the protruding portions 30A becomes the outer contour portion 15 shown in FIG. 6, so that the common portion 16 and the straight portion 17 which are a part of each of the outer contour portions 15 are formed by the protruding portion 30A. The two straight line portions 17 that are formed and adjacent to each other in the length direction D2 of the short side are connected by the connection portion 32 described above, and each connection portion 32 is connected as shown in FIG. The portion 18 is formed, and the mesh panel material 30 is the mesh panel 11.

Then, in the common portion 16 and the straight line portion 17 of the outer contour portion 15 of the mesh panel 11, the thickness direction of the mesh panel 11 is the depth direction on both the front and back surfaces which are both sides in the thickness direction of the mesh panel 11. The groove 19 is formed.

As described above, the gap closing plate 10 which is the work scaffolding plate for temporary scaffolding of the present embodiment has a common portion 16 of the outer contour portion 15 of the mesh panel 11 which is the main body of the gap closing plate 10. Since the groove 19 having the thickness direction of the mesh panel 11 as the depth direction is formed in the straight line portion 17, the groove 19 prevents an operator who walks on the mesh panel 11 from slipping. Can be effectively suppressed. Further, since the groove 19 is continuous over the common portion 16 and the straight portion 17, it is possible to more effectively suppress the slip caused by the groove 19.

Further, in the gap closing plate 10 of this embodiment, since the grooves 19 are formed on both the front and back surfaces of the mesh panel 11, the groove can suppress the slip of the operator regardless of which side is placed on the upper side. become.

Further, since the width of the groove 19 is gradually reduced in the depth direction of the groove 19, foreign matter such as mud that has entered the inside of the groove 19 can be easily removed from the groove 19.

Further, as described above, both the front and back surfaces of the mesh panel 11 are formed in the same shape in a plan view, and the front and back surfaces of the frame frame 12 surrounding the outer edge portion of the mesh panel 11 are also formed in the same shape in a plan view. Since it is formed, the shapes of the front and back surfaces of the entire gap closing plate 10 are the same. Therefore, when the worker arranges the gap closing plate 10 on the temporary scaffold 1, the worker can use the gap closing plate 10 This arrangement work can be easily performed without distinguishing the front and back of the.

Further, since the ridge 25 is formed in the frame frame 12, the slip of the worker who got on the frame frame 12 can be suppressed by the ridge 25, and the ridge 25 is the frame frame. Since it is formed on both the front and back surfaces of the twelve, the ridge 25 can suppress the slip of the operator regardless of which side of the front and back surfaces is on the upper side.

The work scaffolding board for temporary scaffolding described above was a gap closing plate 10 for closing the gap 5 existing in the temporary scaffolding 1, but the present invention is the work scaffolding shown in FIGS. 1 and 2. It can also be applied to a general work scaffolding board for temporary scaffolding whose dimensions are standardized, such as the board 4.

INDUSTRIAL APPLICABILITY The present invention can be used for a work scaffold board including a gap closing board used for a temporary scaffold constructed at a work site such as construction.

1 Temporary scaffolding 5 Gap 10 Gap closing plate that is a work scaffolding board for temporary scaffolding 11 Mesh panel 12 Frame frame 12A Frame frame long side frame member 12B Frame frame short side frame member 14 Mesh panel opening 15 Outer contour Part 16, 16A, 16B Common part 17 Straight part 19 Groove 25 Protrusion 30 Mesh panel material 31 Cut D1 Length direction of long side, which is one of the two directions D2 Direction of the other of the two directions In the length direction of the short side

Claims (12)

A work scaffolding board for temporary scaffolding, comprising a mesh panel provided with a large number of openings and a frame frame surrounding the entire outer edge of the mesh panel.
The opening has a substantially rhombic shape formed through the mesh panel in the thickness direction inside the outer contour portion having a substantially rhombic shape in a plan view, and the outer contour portion has a substantially rhombic shape. And the openings are arranged side by side in two directions in which the thickness direction of the mesh panel is orthogonal to each other and the directions are orthogonal to each other, and each of the openings is in the two directions. Between the two openings provided adjacent to each other in one of the two directions, with respect to the openings arranged offset in the other of the two directions. A common portion in which a part of the outer contour portion is provided adjacent to each other in an oblique direction forming an angle with respect to both of the two directions. In the work scaffolding board for temporary scaffolding that is
On at least one of the front and back surfaces of the mesh panel, which is both sides in the thickness direction of the mesh panel, the thickness direction of the mesh panel is the depth direction in at least a part of the outer contour portion. A work scaffolding board for temporary scaffolding, characterized in that a groove is formed. The temporary scaffolding work scaffolding plate according to claim 1, wherein the groove is formed in the common portion of the temporary scaffolding work scaffolding plate. In the work scaffolding board for temporary scaffolding according to claim 1, the common portion is the common portion in which the inclination directions with respect to the one direction are opposite to each other in the one direction of the two directions. Two are provided alternately with a gap in one direction, and are adjacent to each other with a gap in the one direction, and the tilt directions are opposite to each other. The common portion extends linearly in one of the directions and is connected by a straight portion that is a part of the outer contour portion, and the groove is formed in the straight portion. A featured work scaffolding board for temporary scaffolding. The temporary scaffolding work scaffolding plate according to claim 3, wherein the groove is also formed in the common portion. In the temporary scaffolding work scaffolding plate according to any one of claims 1 to 4, the groove is characterized in that the width dimension is gradually reduced in the depth direction of the groove. Scaffolding board. The temporary scaffolding work scaffolding plate according to any one of claims 1 to 5, wherein the grooves are formed on both the front and back surfaces of the mesh panel. In the work scaffolding board for temporary scaffolding according to claim 6, the front and back surfaces of the mesh panel are formed in the same shape in a plan view, and the surfaces of the mesh panel on the same side as the front and back surfaces of the mesh panel. A work scaffolding board for temporary scaffolding, characterized in that both the front and back sides are formed in the same shape in a plan view. In the work scaffolding board for temporary scaffolding according to any one of claims 1 to 7, at least one of the front and back surfaces of the mesh panel on the same side surface as the front and back surfaces of the mesh panel in the frame frame. , A work scaffolding board for temporary scaffolding, characterized by the formation of ridges. The temporary scaffolding work scaffolding plate according to claim 8, wherein the protrusions are formed on both the front and back surfaces of the frame. The work scaffolding board for temporary scaffolding according to any one of claims 1 to 9, wherein the work scaffolding board for temporary scaffolding is a gap closing board for closing the gap in the temporary scaffolding. It is a method for manufacturing a mesh panel which is the main body of a work scaffolding board for temporary scaffolding by providing a large number of openings and enclosing the entire outer edge portion by a frame.
The opening has a substantially rhombic shape formed through the mesh panel in the thickness direction inside the outer contour portion having a substantially rhombic shape in a plan view, and the outer contour portion has a substantially rhombic shape. And the openings are arranged side by side in two directions in which the thickness direction of the mesh panel is orthogonal to each other and the directions are orthogonal to each other, and the respective openings are arranged in the two directions. Between the two openings provided adjacent to each other in one of the two directions, with respect to the openings arranged offset in the other of the two directions. A common portion in which a part of the outer contour portion is provided adjacent to each other in an oblique direction forming an angle with respect to both of the two directions. It is a method of manufacturing a mesh panel that has become
The mesh panel material extends linearly in one of the two directions on at least one of the front and back surfaces of the mesh panel material, which is both sides in the thickness direction of the mesh panel. A large number of grooves having the thickness direction of the above two directions as the depth direction are formed with an interval in the other direction of the two directions, and two grooves adjacent to each other with the interval in the other direction. A plurality of cuts extending linearly in one direction are formed between the grooves of the above, with a gap in the one direction, and one groove is sandwiched between the grooves in the other direction. A first for forming each of the cuts to be provided in a staggered manner so that the positions of the cuts provided adjacent to each other in the other direction are diagonal positions forming an angle with respect to both of the two directions. 1 work process and
A second work step for expanding and deforming the mesh panel material in the other direction to expand each of the cuts in the other direction and making these cuts into the openings.
A method of manufacturing a mesh panel of a work scaffolding board for temporary scaffolding, characterized by including. The method for manufacturing a mesh panel for a temporary scaffolding work according to claim 11, wherein in the first work step, the grooves are formed on both the front and back surfaces of the mesh panel material. Manufacturing method of mesh panel of scaffolding board.

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