JP6563686B2 - End member of work cloth for temporary scaffold - Google Patents

Description

  The present invention relates to an end member for a work cloth board used when forming a walking path for an operator on a temporary scaffold constructed at a work site such as a building or civil engineering.

  Temporary scaffolds constructed at work sites such as architecture and civil engineering are configured using work cloth boards for forming worker walkways and the like. This work cloth board is comprised including a main body and an end member, and an end member is arrange | positioned at the edge part of the length direction of a work cloth board, and is attached to a main body.

  The end member of the work cloth board shown in the following Patent Document 1 includes an upper horizontal part and a lower horizontal part whose base parts are coupled to the main body, and the work cloth board than the tip of the lower horizontal part. The upper end of the upper horizontal portion protruding outward in the length direction and the inclined connecting portion connecting the front end of the lower horizontal portion obliquely are formed, and the entire end member is formed by bending a sheet metal. .

JP 2012-140859 A (0036 paragraph, FIG. 4)

  Since an operator rides on the end member of the work cloth board like the main body, the end member is required to have sufficient strength against a large weight. However, such a structure that requires a lot of materials and labor to obtain sufficient strength is not preferable in terms of cost, and in order to make the end member a bent product of sheet metal, as in Patent Document 1 above. A structure utilizing bending is desired.

  An object of the present invention is to provide an end member of a working cloth plate for a temporary scaffold that has sufficient strength and can secure this strength by bending a sheet metal.

  The end member of the working cloth for temporary scaffold according to the present invention is an end member that is disposed at the end in the length direction of the working cloth constituting the temporary scaffold, and is attached to the main body of the working cloth. Are connected to the main body with the upper horizontal portion and the lower horizontal portion, the tip of the upper horizontal portion projecting outward in the length direction of the work cloth board from the tip of the lower horizontal portion, and the lower horizontal An end member of a temporary scaffold work cloth board formed by bending a sheet metal, the upper end rising from the lower horizontal part, It has a rising part joined to the lower surface of the upper horizontal part, and this rising part is formed by bending from the lower horizontal part at the lower end that is a connecting part to the lower horizontal part. It is characterized by.

  The end member of this temporary scaffold work cloth board has a rising portion that rises from the lower horizontal portion and the upper end is coupled to the lower surface of the upper horizontal portion. Sufficient strength can be ensured against a large load due to the weight of the rider.

  In addition, since the rising portion is formed by bending from the lower horizontal portion at the lower end that is a connecting portion with the lower horizontal portion, when manufacturing an end member that is a bent product of sheet metal Therefore, the rising portion can be formed by bending the sheet metal. Therefore, sufficient strength can be obtained by bending the sheet metal, and the yield of the sheet metal that is the material of the end member is improved. The member can be manufactured.

  In the present invention described above, the number of rising portions may be one, but the number of rising portions may be two by providing the rising portions on both sides in the width direction of the work cloth board.

  By providing two rising portions on both sides in the width direction of the work cloth board as described above, the strength of the end member can be further increased.

  Further, the upper end of the rising portion can be connected to the lower surface of the upper horizontal portion by any connecting means, and one example thereof is to connect the upper end of the rising portion to the lower surface of the upper horizontal portion by welding. Another example is to connect the upper end of the rising portion to the lower surface of the upper horizontal portion with a fastener such as a screw or rivet. However, when the upper end of the rising portion is joined to the lower surface of the upper horizontal portion by welding, the rising portion and the upper horizontal portion can be joined with high strength by a simple operation.

  Further, it is preferable to provide a reinforcing portion formed by embossing at the rising portion.

  According to this, the rising portion is provided with a strength that can sufficiently receive a large load due to the weight of an operator riding on the end member, etc., and the strength of the entire end member is also increased. Can do. Further, when the reinforcing portion is formed by embossing, the embossing can be easily performed on the sheet metal that is the material of the end member, and therefore the reinforcing portion can be provided at the rising portion with a simple operation.

  Further, in the case where a reinforcing portion by embossing is provided at the rising portion as described above, the reinforcing portion may have an arbitrary shape, but it is preferable that the reinforcing portion has a vertically long shape.

  When the reinforcing portion is formed in a vertically long shape in this way, the rising portion is less likely to buckle with respect to the load from above. For this reason, a large load due to the weight of the operator riding on the end member is further increased. The rising portion can be given sufficient strength.

  In the present invention, the rising portion may rise vertically from the lower horizontal portion, but the rising portion rises from the lower horizontal portion with an inclination angle inclined with respect to the vertical direction. It is preferable that the tilt direction from the vertical direction of the rising portion is opposite to the tilt direction from the vertical direction of the tilt connecting portion described above.

  In this way, the rising portion is assumed to have risen from the lower horizontal portion with an inclination angle inclined with respect to the vertical direction, and the inclination direction of the rising portion from the vertical direction is defined as the inclination direction of the inclined connecting portion from the vertical direction. If it is on the opposite side, a large load due to the weight of the operator acting downward on the end member can be effectively supported by the rising portion and the inclined connecting portion.

  The work cloth board in which the end member according to the present invention described above is used is a temporary scaffold constructed at an arbitrary work site such as a construction work site, a civil engineering work site, a dismantling work site, or a painting work site. Can be used.

  According to the present invention, it is possible to obtain an effect that the end member of the work cloth board has sufficient strength, and this strength can be secured by bending the sheet metal that is the material of the end member.

FIG. 1 is a perspective view showing a temporary scaffold constructed using a working cloth board according to an embodiment of the present invention. FIG. 2 is a plan view of the work cloth board. FIG. 3 is a bottom view of the work cloth board. FIG. 4 is a side view of the work cloth board. 5 is a cross-sectional view taken along line S5-S5 of FIG. FIG. 6 is a perspective view of the end member in which the main body of the work cloth board is indicated by a two-dot chain line. FIG. 7 is a front view of the end member. FIG. 8 is a rear view of the end member. 9 is a cross-sectional view taken along line S9-S9 in FIG. 10 is a cross-sectional view taken along line S10-S10 in FIG. FIG. 11 is an enlarged view of a main part of FIG.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 shows a part of a temporary scaffold constructed on a construction site such as a building. The temporary scaffold constructed on the outer periphery of a work object includes a plurality of support pillars 1 and these support pillars. Each one is arranged at the lower end of the column 1 and is constructed to include a jack base 2 for adjusting the height of each column 1 and a work cloth plate 3 for an operator to ride and work. A plurality of flanges 4 serving as joint members are coupled to the outer peripheral surface of each column 1 at equal intervals in the vertical direction, and the lower end of an extension column (not shown) is connected to the upper end of each column 1. Are connected via a connection pipe (not shown), and the height of the temporary scaffolding is secured by these supporting columns.

  The work cloth board 3 forms the worker walking passage 5 by arranging a plurality of work cloth boards 3 in the length direction and the width direction, and the work cloth board 3 shown in FIG. Includes a work cloth board 3A having a large width dimension and a work cloth board 3B having a small width dimension. Two hook members 6 for each of the work cloth boards 3A and 3B are provided at both ends in the width direction of the work cloth boards 3A and 3B at both ends in the length direction of the work cloth boards 3A and 3B. These hook members 6 are attached to the horizontal members 7 spanned around the flanges 4 of the two columns 1 erected on the both sides in the width direction of the work cloth plates 3A and 3B among the plurality of columns 1. Thus, the respective work cloth plates 3A and 3B are horizontally disposed on the temporary scaffold.

  2, 3 and 4 show a plan view, a bottom view and a side view of the work cloth board 3A. As shown in FIGS. 2 to 4, the work cloth board 3 </ b> A is disposed at the center in the length direction of the work cloth board 3 </ b> A and occupies most of the entire length of the work cloth board 3 </ b> A. 10 and the end member 11 which is arrange | positioned at the both ends of the length direction of the work cloth board 3A, and is attached to the main body 10.

  FIG. 5 is a cross-sectional view taken along line S5-S5 of FIG. 2. As can be seen from FIG. 5, the main body 10 is composed of two tread members 12 arranged in parallel in the width direction of the work cloth board 3A. Since the tread members 12 are formed by bending a sheet metal, each tread member 12 is bent downward from the upper surface portion 12A on which an operator rides and from both ends in the width direction of the upper surface portion 12A. Side surfaces 12B and 12C extending further downward, and bottom surfaces 12D and 12E extending inward in the width direction of the tread member 12 by being bent in directions facing each other from the lower ends of these side surfaces 12B and 12C, These lower surface portions 12D and 12E have upright portions 12F and 12G that are erected upward by being bent upward from the tips. As shown in FIG. 3, the width direction of the main body 10 is long on the lower surface portions 12D and 12E of the two tread members 12 arranged in parallel in the width direction of the work cloth board 3A with a gap 13 therebetween. A connecting member 14 made of a sheet metal having a longitudinal direction is arranged, and two connecting members 14 arranged in parallel in the length direction of the main body 10 are joined to the lower surface portions 12D and 12E of the respective tread members 12 by welding. Thus, the two tread members 12 are connected by the connecting member 14.

  In addition, as shown in FIG. 2, an anti-slip portion 15 that is also a reinforcing portion faces upward by embossing on the upper surface portion 12A on which the operator rides in each tread member 12 formed of sheet metal. Further, as shown in FIG. 3 and FIG. 5, the reinforcing member 16 is formed on the connecting member 14 made of sheet metal by embossing.

  As shown in FIG. 5, in each step member 12, the length in the width direction of the work cloth board 3A for the lower surface portions 12D and 12E is the length in the width direction of the work cloth board 3A for the upper surface portion 12A. Since it is shorter than that, a space portion 17 is provided between the two upright portions 12F and 12G.

  As described in FIG. 1, the two hook members 6 provided on both sides in the width direction of the work cloth board 3A are formed of thick plate materials, and these hook members 6 are shown in FIG. As shown in FIGS. 3 and 4, the hook members 6 are disposed on the inner side of the side surface portion 12B on the outer side in the width direction of the work cloth board 3A. It is fixed to the side surface portion 12 </ b> B by the attachment 18. A recess 19 in FIG. 4 is formed at the tip of the hook member 6 projecting from the respective tread members 12 to the outside in the length direction of the work cloth board 3A, into which the horizontal member 7 shown in FIG. 1 is inserted and locked. In the hook member 6, a lock member 20 for preventing the horizontal member 7 from falling off by closing the lower part of the concave portion 19 when the horizontal member 7 is inserted is movably arranged by the pin 21. Has been.

  As can be seen from FIGS. 2 and 3, of the two hook members 6 provided on both sides in the width direction of the work cloth board 3 </ b> A, the other hook member 6 </ b> B with respect to the tip of one hook member 6 </ b> A. Is slightly shifted inward in the width direction of the work cloth board 3A due to bending or the like. Thus, of the two hook members 6, there are two reasons why the tip of the other hook member 6B is slightly shifted inward in the width direction of the work cloth board 3A with respect to the tip of one hook member 6A. As shown in FIG. 1, when the work cloth boards 3 </ b> A are juxtaposed in the longitudinal direction of the work cloth boards 3 </ b> A, the hook members 6 locked to the same horizontal member 7 do not interfere with each other. It is for doing so.

  The end members 11 attached to both ends of the work cloth board 3 </ b> A in the length direction of the main body 10 are formed by bending a sheet metal in the same manner as the stepping member 12 forming the main body 10. That is, the sheet metal which is the material of the end member 11 is punched into a predetermined shape which is the same as the shape when the end member 11 is unfolded, and then the end member 11 is bent by bending the sheet metal obtained by the punching. It is manufactured.

  FIG. 6 is a perspective view of the end member 11, FIG. 7 is a front view of the end member 11, and FIG. 8 is a rear view of the end member 11. 9 and 6 are sectional views taken along line S9-S9 in FIG. 6, and FIG. 10 is a sectional view taken along line S10-S10 in FIG. As shown in FIGS. 6 to 10, the end member 11 includes an upper horizontal portion 30 extending from the main body 10 in the length direction of the work cloth board 3 </ b> A, and a length of the work cloth board 3 </ b> A from the main body 10. The lower horizontal portion 31 extending in the vertical direction, and the inclined connecting portion 32 that obliquely connects the tip of the upper horizontal portion 30 and the tip of the lower horizontal portion 31 are shown in FIGS. As can be seen from FIG. 10, the tip of the upper horizontal portion 30 protrudes outward in the length direction of the work cloth board 3 </ b> A from the tip of the lower horizontal portion 31. The work cloth plate 3A is inclined in the direction toward the inner side in the length direction as it extends downward from the tip.

  The length of the work cloth board 3A in the width direction with respect to the end member 11 is the same as or slightly shorter than the width dimension of the work cloth board 3A in the width direction of the main body 10, and is shown in FIG. As shown in FIG. 3, on the both ends of the work cloth board 3 </ b> A in the end member 11 in the width direction, on the tip side of the upper horizontal part 30 and the tip part side of the lower horizontal part 31, A cut portion 33 is formed. And in the part which is in agreement with these notch parts 33, or the part which is in agreement, rise part 34 has risen from lower horizontal part 31, and the upper end of these rise parts 34 is shown in Drawing 9 and Drawing 10 As described above, the welded portion 35 is welded to the lower surface of the upper horizontal portion 30, and therefore, the joint portion between the rising portion 34 and the lower surface of the upper horizontal portion 30 is a welded portion 35.

  As shown in FIG. 7, of the two rising portions 34 provided on both sides in the width direction of the work cloth board 3 </ b> A in the end member 11, the other rising portion with respect to one rising portion 34 </ b> A. 34B is slightly shifted inward in the width direction of the work cloth board 3A. As described above, the reason why the other rising portion 34B is slightly shifted inward in the width direction of the work cloth board 3A with respect to the one rising section 34A is provided on both sides in the width direction of the work cloth board 3A as described above. Among the hook members 6, the tip end portion of the other hook member 6B is slightly shifted inward in the width direction of the work cloth board 3A with respect to the tip end portion of one hook member 6A. This is to prevent interference between the distal end portion of the member 6B and the above-described lock member 20 disposed at the distal end portion.

  Each rising portion 34 of the present embodiment is formed by bending from the lower horizontal portion at the lower end 36 in FIG. 6, which is a connection portion with the lower horizontal portion 31. This will be described with reference to FIG. 11 in which the main part of FIG. 6 is enlarged. As described above, the end member 11 has the same shape as that when the end member 11 is unfolded from the sheet metal that is the material of the end member 11. It is manufactured by punching into a predetermined shape and then bending the sheet metal obtained by this punching. This punching is a portion 34 'that becomes the rising portion 34 (the portion indicated by the two-dot chain line in FIG. 11). To leave. Next, the upper horizontal portion 30, the lower horizontal portion 31, and the inclined connecting portion 32 are formed by bending the sheet metal obtained by punching, and thereafter, the lower end 36 serving as a connecting portion with the lower horizontal portion 31. Is bent upward to form the rising portion 34 connected to the lower horizontal portion 31 at the lower end 36. Then, as described above, the upper end of the rising portion 34 is welded to the upper horizontal portion. 30 is coupled to the lower surface.

  Further, as shown in FIG. 10, the rising portion 34 of the present embodiment does not rise in the vertical direction from the lower horizontal portion 31 along the vertical line N, and is inclined with respect to the vertical direction. And the inclination direction from the vertical direction of the rising portion 34 is opposite to the inclination direction from the vertical direction of the inclined connecting portion 32.

  Further, the end member 11 of the present embodiment has the work cloth plate 3A at the rear end portion of the lower horizontal portion 31, that is, the both ends of the work cloth plate 3 </ b> A in the length direction of the lower horizontal portion 31. A protrusion 37 protruding upward is provided at the end on the inner side in the lengthwise direction, and this protrusion 37 is also formed by bending from the lower horizontal portion 31. As shown in FIG. 8, the protrusion 37 is not provided over the entire length in the width direction of the work cloth plate 3 </ b> A in the lower horizontal portion 31, and the work cloth plate in the lower horizontal portion 31. The protrusions 37 are provided at locations excluding both end portions in the width direction of 3A and the center portion in the width direction of the work cloth plate 3A in the lower horizontal portion 31. For this reason, the interval in the width direction of the work cloth plate 3A is provided. Two protrusions 37 are formed on the lower horizontal portion 31 with a gap.

  In order to attach the end members 11 to both end portions of the main body 10 in the length direction of the work cloth board 3A, the main body 10 is connected in the width direction of the work cloth board 3A by the connecting member 14 of FIG. As shown in FIG. 8, between the two upright portions 12F and 12G of the respective tread members 12, while inserting the protrusions 37, the upper surface portion 12A and the lower surface portions 12D, 12E is inserted between the upper horizontal portion 30 and the lower horizontal portion 31 of the end member 11, and the main body 10 and the end are supported by the ridge 37 and the standing portions 12F and 12G that are in contact with each other in the width direction of the work cloth board 3A. After positioning the member 11 in the width direction of the work cloth board 3A, the upper surface portion 12A of the step member 12 and the upper horizontal portion 30 of the end member 11 are joined by welding, and the lower surface portions 12D and 12E of the step member 12 and the end Welding the lower horizontal part 31 of the member 11 Binding.

  Thereby, the end member 11 is attached to the both ends of the length direction of the work cloth board 3A in the main body 10.

  In the present embodiment, as shown in FIG. 6, the upper horizontal portion 30 of the end member 11 has an anti-slip for preventing an operator riding on the upper horizontal portion 30 from slipping. The portion 40 is formed as an upward convex portion by embossing a sheet metal that is a material of the end member 11, and the anti-slip portion 40 has a non-slip portion 40A having a long length in the width direction of the work cloth plate 3A. And a non-slip portion 40B having a short length in the width direction of the work cloth board 3A.

  Further, as shown in FIGS. 6 and 11, each rising portion 34 is provided with a reinforcing portion 41 by embossing a sheet metal that is a material of the end member 11. It has a vertically long shape.

  Since the end member 11 according to the present embodiment described above has the rising portion 34 that rises from the lower horizontal portion 31 and the upper end is coupled to the lower surface of the upper horizontal portion 30, the rising portion 34 Sufficient strength against a large load due to the weight of an operator riding on the end member 11 can be secured.

  Further, since the rising portion 34 is formed by bending from the lower horizontal portion 31 at the lower end 36 which is a connecting portion with the lower horizontal portion 31, the end member 11 is a bent product of sheet metal. When the sheet metal is manufactured, the rising portion 34 can be formed by bending the sheet metal. Therefore, sufficient strength can be obtained by bending the sheet metal, and the yield of the sheet metal that is the material of the end member 11 is improved. The end member 11 can be manufactured at a low cost.

  In addition, since the two rising portions 34 are provided on both sides in the width direction of the work cloth board 3A, the strength of the end member 11 can be further increased.

  Further, since the joining of the upper end of the rising portion 34 to the lower surface of the upper horizontal portion 30 is performed by welding, the rising portion 34 and the upper horizontal portion 30 can be bonded to each other with a large strength by a simple welding operation. Can be combined.

  Further, since the rising portion 34 is provided with the reinforcing portion 41, the rising portion 34 has a strength that can sufficiently receive a large load due to the weight of an operator riding on the end member 11. Further, the strength of the end member 11 as a whole can be increased. Moreover, since the reinforcement part 41 is formed in the sheet metal which is a material of an end member by embossing, the reinforcement part 41 can be provided in the rising part 34 by simple work.

  Further, since the reinforcing portion 41 has a vertically long shape, the rising portion 34 is unlikely to buckle against a load from above, and thus depends on the weight of the operator who rides on the end member. The rising portion 34 can be provided with a strength capable of receiving a large load more sufficiently.

  Further, as described above, the rising portion 34 of the present embodiment does not rise in the vertical direction along the vertical line N from the lower horizontal portion 31 and has a tilt angle inclined with respect to the vertical direction. The rising direction of the rising portion 34 from the vertical direction is from the vertical direction of the inclined connecting portion 32 that obliquely connects the tip of the upper horizontal portion 30 and the tip of the lower horizontal portion 31. The direction of the horizontal component of the load acting on the rising portion 34 when a load due to the operator's weight or the like is applied to the rising portion 34 and the inclined connecting portion 32. And the direction of the horizontal component of the load acting on the inclined connecting portion 32 can be opposite to each other to cancel out these components. Therefore, the rising portion 34 and the inclined connecting portion 32 Acting load Support of, can be more effective with these rising portions 34 by the inclined connecting portion 32.

  The embodiment described above is about the work cloth board 3A having a large width dimension among the work cloth board 3A having a large width dimension shown in FIG. 1 and the work cloth board 3B having a small width dimension. The main body of the work cloth board 3B having a small width dimension has one tread member 12 used to form the main body of the work cloth board 3A having a large width dimension. Therefore, the end member for the work cloth board 3B having a small width dimension is only shorter in the width direction of the work cloth board 3 than the end member 11 for the work cloth board 3A having a large width dimension. Therefore, the configuration related to the rising portion 34 of the end member 11 for the work cloth board 3A having the large width dimension is also applied as it is when the rising portion of the end member for the work cloth board 3B having the small width dimension is provided. Can do.

  INDUSTRIAL APPLICATION This invention can be utilized for the work cloth board used in order to form a walk passage for workers, etc. in the temporary scaffold constructed | assembled in construction sites, such as a building and civil engineering.

3, 3A, 3B Work cloth board 10 Main body 11 End member 30 Upper horizontal part 31 Lower horizontal part 32 Inclined connection part 34, 34A, 34B Rising part 35 Welding part 36 Lower end 41 Reinforcing part N Vertical line

Claims (5)

End members that are disposed at the lengthwise ends of the working cloth board constituting the temporary scaffold and are attached to the main body of the working cloth board, each of which is an upper horizontal part and a lower horizontal part coupled to the main body And an inclined connecting portion that obliquely connects the tip of the upper horizontal portion and the tip of the lower horizontal portion projecting outward in the length direction of the work cloth board from the tip of the lower horizontal portion In the end member of the working cloth plate for temporary scaffold formed by bending the sheet metal,
It has a rising portion that rises from the lower horizontal portion and has an upper end coupled to the lower surface of the upper horizontal portion, and this rising portion is a lower end that is a connecting portion with the lower horizontal portion. It is formed by bending from the horizontal part ,
The rising portion rises from the lower horizontal portion with an inclination angle inclined with respect to the vertical direction, and the inclination direction of the rising portion from the vertical direction is opposite to the inclination direction of the inclined connecting portion from the vertical direction. An end member of a working scaffold for a temporary scaffold characterized by being on the side .   2. The temporary scaffold work cloth board according to claim 1, wherein two rising parts are provided on both sides in the width direction of the work cloth board. 3. End member.   3. The temporary scaffold work according to claim 1 or 2, wherein the upper end of the rising portion is joined to the lower surface of the upper horizontal portion by welding. End member of cloth board.   4. The temporary scaffold work according to claim 1, wherein the rising portion is provided with a reinforcing portion formed by embossing. 5. End member of cloth board. 5. The end member of the temporary scaffold work cloth board according to claim 4, wherein the reinforcing portion has a vertically long shape.

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