WO2014080998A1 - Suppot steel pipe for scaffolding or timbering - Google Patents

Suppot steel pipe for scaffolding or timbering Download PDF

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Publication number
WO2014080998A1
WO2014080998A1 PCT/JP2013/081452 JP2013081452W WO2014080998A1 WO 2014080998 A1 WO2014080998 A1 WO 2014080998A1 JP 2013081452 W JP2013081452 W JP 2013081452W WO 2014080998 A1 WO2014080998 A1 WO 2014080998A1
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WO
WIPO (PCT)
Prior art keywords
steel pipe
support
wedge
column
horizontal member
Prior art date
Application number
PCT/JP2013/081452
Other languages
French (fr)
Japanese (ja)
Inventor
幸夫 山根
Original Assignee
Yamane Yukio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamane Yukio filed Critical Yamane Yukio
Priority to US14/418,077 priority Critical patent/US20150152654A1/en
Priority to CN201380012557.0A priority patent/CN104487637A/en
Publication of WO2014080998A1 publication Critical patent/WO2014080998A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/006—Scaffold with cantilevered sections, e.g. to accommodate overhangs or recesses in the facade
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/06—Consoles; Brackets
    • E04G5/061—Consoles; Brackets specially adapted for attachment to scaffolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/20—Stiff scaffolding clamps for connecting scaffold members of common shape for ends of members only, e.g. for connecting members in end-to-end relation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/308—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect without tying means for connecting the bars or members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/22—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using hooks or like elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/10—Details of socket shapes

Definitions

  • the present invention relates to an assembly type scaffold or support used in construction work or the like.
  • a method of building a scaffold is often used to work on buildings and their outer walls. Mainly, temporary work floors and passages are installed outside the building, and workers are building, repairing, maintaining, painting, and cleaning the building.
  • a support is a structure that supports a concrete floor and beam formwork from concrete placement to hardening.
  • scaffolding and support work In scaffolding and support work, it has a vertical part for support and a horizontal part for worker movement and work, and the worker moves up, down, left and right to work.
  • an aerial worker installs a safety belt, attaches a hook at one end of the safety belt to the body, and attaches a hook at the other end to the scaffold or support.
  • the safety belt hooks since there are relatively few places where the safety belt hooks are hooked on the scaffolding or the support work, it is difficult and dangerous to move in a state where the safety belt hooks are always hooked. For example, a plurality of workers can only be hooked after climbing up to a predetermined work position, and there is a high risk in the movement process.
  • the problem to be solved by the present invention is to provide a scaffold and / or a support work that is easy to assemble, has sufficient strength, and has high safety in work and movement.
  • Assembled scaffold or support column having at least one horizontal member connecting portion provided on a side surface of a steel pipe, which is provided with a receiving metal fitting having a wedge hole penetrating vertically and a circular outer edge portion in contact with the outer edge of the receiving metal fitting Steel pipe.
  • the steel pipe for supporting columns according to the preceding item 1 wherein the circular outer edge portion is welded to all of the plurality of receiving metal fittings to form a hook hanging portion of a safety belt.
  • a steel pipe of 250 to 400 mm provided with the horizontal material connecting part at the center is one unit, and has a length of 1 to 15 units, or the length added by the joint pipe is shortened from the length. 3.
  • a steel pipe part for struts comprising the steel pipe for struts according to any one of the preceding items 1 to 4,
  • a first support arm having one end provided with a wedge portion and the other end welded at right angles to a side surface of the upper portion of the horizontal member connecting portion of the steel pipe portion for the column;
  • a first vertical support having one or more wedge portions welded at right angles to the side surface of the first support arm, parallel to the column, and capable of being inserted into a wedge hole in the horizontal member connecting portion of the column.
  • the circular outer edge portion provided in the horizontal member connecting portion of the steel pipe for supporting column of the present invention reinforces the strength of the receiving metal and forms a hook hanging portion.
  • a plurality of safety belt hooks can be hooked on the hook hook portion. Since there are many horizontal material connecting parts at regular intervals (for each unit) in the assembled scaffolding and support column, the hooking part of the safety belt always exists near the worker, It is possible to ensure safety when the worker moves or works.
  • the support work using the steel pipe for a column of the present invention can be used as a part of a scaffold.
  • a scaffold can be formed by adding a bracket, a footboard, a handrail, a horizontal joint, a steel pipe for a column of the present invention, and the like to a support using the steel pipe for a column of the present invention.
  • a scaffold or a support can be assembled easily and skillfully.
  • the scaffold member below the bracket can be diverted to the upper scaffold member. For example, after the work on the lower outer wall is completed, the steel pipe for a column and the horizontal member on the outer surface of the lower scaffolding can be removed and attached to the upper part of the bracket to form an upper working scaffold. By diverting in this way, the scaffold member can be reduced.
  • the surface where the wedge part contacts the side surface of the steel pipe is the same arcuate curved surface as the side surface of the steel pipe, so that the contact surface between the wedge part and the steel pipe is wide, the wedge part is stable, and the axis of the wedge part rotates. It does not move and has excellent strength.
  • the steel pipe horizontal material steel pipe which comprises a horizontal material is welded to three surfaces, the front surface of a wedge part, and both sides
  • FIG. 1 is a perspective view of an example of a steel pipe for a support (1 unit) according to the present invention.
  • FIG. 2 is a front view of an example of a steel pipe for a support (1 unit) according to the present invention.
  • FIG. 3 is an assembly schematic diagram of a steel pipe for a column and a horizontal member.
  • FIG. 4 is (1) a plan view of the wedge portion and (2) a side view of the end portion of the horizontal member.
  • FIG. 5 is a schematic view of a cross section a1-a2 of FIG.
  • FIG. 6 is a schematic view showing the connection of the steel pipes for struts of the present invention.
  • FIG. 7 is a side view of the placket of the present invention connected to a column composed of the steel pipe for column of the present invention.
  • the steel pipe for a column of the present invention is assembled and used as a scaffold, a support work, or a support work / scaffolding work.
  • a plurality of steel pipes for struts are built at predetermined intervals in a place where a desired horizontal member is bridged and a scaffold or a supporting work is required.
  • pillars are connected in the axial direction of the steel pipe for support
  • a scaffold or a support can be made into desired height.
  • the column steel pipe 10 of the present invention is provided with at least one horizontal member connecting portion 20 on the side surface of the steel pipe 21. Further, the horizontal member connecting portion 20 is provided with a receiving metal fitting 22 having a wedge hole 222 penetrating vertically and a circular outer edge portion 23 in contact with the outer edge of the receiving metal fitting.
  • a receiving metal fitting 22 having a wedge hole 222 penetrating vertically and a circular outer edge portion 23 in contact with the outer edge of the receiving metal fitting.
  • a plurality of, preferably 2 to 4, receiving metal fittings 22 are provided at the same height on the side surface of the steel pipe for supporting columns and project at right angles to the axial direction.
  • Each bracket is preferably provided at a right angle or in the opposite direction (180 degrees).
  • Each receiving bracket 22 is formed with a wedge hole 222 penetrating vertically. The wedge hole has a large area at the upper end opening and the sectional area gradually decreases, and the area at the lower end opening is the smallest.
  • the material of the metal fitting and the method of coupling with the support are not particularly limited, but preferably, a metal plate such as steel is bent into a U shape and welded to the side surface 21 of the steel pipe.
  • the length in the axial direction of the metal fitting 22 is, for example, 40 to 80 mm. Preferably, it is 50 to 70 mm, more preferably 55 to 65 mm, and most preferably 60 mm.
  • the lateral width of the upper end opening of the wedge hole 222 is 15 to 30 mm, preferably 18 to 25 mm, and more preferably 20 mm.
  • the vertical width is about the same.
  • the circular outer edge portion 23 is provided so as to be in contact with the outer edge of the metal fitting 22 and to cover the metal fitting 22.
  • the circular outer edge portion 23 reinforces the strength of the metal fitting and forms a hook 231 for a safety band.
  • Hook-hanging spaces 226 are formed between the circular outer edge portion 23 and two adjacent metal fittings 22, respectively.
  • a circular outer edge portion corresponding to the space is a hook hook portion 231.
  • One or a plurality of hooks of the worker's safety belt can be hooked on the hook hook portion 231 to achieve safety protection.
  • a space is formed between each of the two receiving brackets 22 adjacent to the steel plate. The distance is short and cannot be hooked or difficult to hook.
  • the hook outer space 226 of the present invention has a circular outer edge portion, the distance between the hook hook portion 231 and the steel pipe side surface 211 is long and it is easy to hook the hook.
  • the material of the circular outer edge portion 23 and the method of coupling with the support are not particularly limited, preferably, annular steel is welded to all of the plurality of receiving brackets 22. Preferably, welding is joined to the outer edge portions of the four receiving brackets 22.
  • the width of the circular outer edge 23 is 10 to 40 mm, preferably 15 to 30 mm, more preferably 17 to 25 mm, and most preferably 20 mm. If it is thinner than 10 mm, the strength is weak, and if it is thicker than 40 mm, it is difficult to hook.
  • the diameter of the circular outer edge is 70 to 110 mm, preferably 75 to 100 mm, more preferably 78 to 96 mm. If it is smaller than 70 mm, it is difficult to hook.
  • the circular outer edge portion preferably has a shape with a large upper diameter and a small lower diameter.
  • the steel pipe for supporting column of the present invention can be 200 to 500 mm as one unit. More preferably, 250 to 400 mm, more preferably 270 to 350 mm, further preferably 270 to 330 mm, and most preferably 300 mm can be defined as one unit.
  • One horizontal member connecting portion 20 is provided at substantially the center of one unit.
  • the length of the steel pipe 10 for struts of the present invention is not limited, but has a length of 1 to 15 units, for example. For example, it has a length of 175 mm to 4500 mm.
  • the horizontal member connecting portions 20 are provided on the side surface of the steel pipe 21 at a predetermined one unit interval. That is, when a plurality of horizontal member connecting portions 20 are provided on the steel pipe for support columns, the horizontal member connecting portions 20 are provided at intervals of one unit, and most preferably, the horizontal member connecting portions 20 are arranged at intervals of 300 mm. Yes.
  • the interval between the horizontal member connecting portions 20 adjacent to the upper and lower portions of the connecting portion is a predetermined one unit.
  • pillar can be shortened about the length added by the joint pipe
  • one unit at the lower end of the steel pipe for supporting columns can be made shorter by the length added by the joint pipe than the length of a predetermined unit.
  • the length of the lower end unit is 275 mm
  • the length of the steel pipe for one column of the present invention is 275 mm
  • the length of the steel pipe for the column of the present invention of the unit is 575 mm
  • the length of the steel pipe for the pillar of the present invention of 3 units is 875 mm
  • the length of the steel pipe for the column of the present invention of 4 units is 1175 mm
  • the present invention of 5 units when one unit is 300 mm and a length of 25 mm is added by the joint pipe, the length of the lower end unit is 275 mm, and the length of the steel pipe for one column of the present invention is 275 mm, 2
  • the length of the steel pipe for the column of the present invention of the unit is 575 mm
  • the length of the steel pipe for the pillar of the present invention of 3 units is 875 mm
  • the length of the steel pipe for the column of the present invention of 4 units is 1175 mm
  • the present invention of 5 units when one unit is 300 mm and
  • the length of the steel pipe for the column of the present invention is 1475 mm
  • the length of the steel pipe for the column of 6 units of the present invention is 1775 mm
  • the length of the steel pipe for the column of 7 units of the present invention is 2075 mm
  • the steel pipe for the column of the present invention of 8 units is 1475 mm
  • the length of the steel pipe for a pillar of the present invention of 9 units is 2675 mm
  • the length of the steel pipe for a pillar of the present invention of 10 units is 2975 mm, 11 units.
  • the length of the steel pipe for supporting column of the present invention is 3275 mm
  • the length of the steel pipe for supporting column of 12 units of the present invention is 3575 mm
  • the length of the steel pipe for supporting column of 13 units of the present invention is 3875 mm
  • the length of the supporting column of 14 units of the present invention can be 4175 mm
  • the length of the 15-unit steel pipe for a column of the present invention can be 4475 mm.
  • 1 unit is 200 to 500 mm, and horizontal member connecting portions are present at intervals of 200 to 500 mm, so that hooking portions 231 of a safety belt are provided at intervals of 200 to 500 mm on scaffolding or support columns.
  • the worker always has a hook 231 for the safety belt in close proximity, so that safety during movement and work can be ensured.
  • the support steel pipe of the present invention is preferably provided with a safety pin hole 40 for preventing the wedge portion from falling off so that the two safety pins 401 penetrate the support steel pipe in a cross shape.
  • the safety pin 401 for preventing the wedge part from falling off is attached to the safety pin hole 40.
  • two safety pins 401 for preventing the wedge part from falling off are provided in a cross so as to pass through the support steel pipes corresponding to the four receiving brackets 22.
  • the safety pin 401 has its end projecting above the upper surface of the wedge part 31 inserted into the wedge hole 222 to prevent the wedge part 31 from falling off.
  • the safety pin is composed of, for example, a bolt and a nut. With these safety pins, further safety can be ensured.
  • the present invention also relates to an assembly-type scaffolding or supporting structure including the steel pipe 10 for a column and a horizontal member 30 having a wedge part 31 at an end part.
  • the assembled scaffold or support according to the present invention may further include other members.
  • a joint pipe, a joint pin, a safety pin, etc. may be included.
  • the horizontal member 30 is usually installed between two or four horizontal member connecting portions 20 at the same height provided in another steel pipe for a column.
  • Examples of the horizontal member 30 include a handrail, a tread, a bracket, and a horizontal bridge.
  • the horizontal member has a length or a long side of 300 to 1800 mm, preferably 500 to 1500 mm, and more preferably 700 to 1100 mm.
  • the wedge part 31 is provided in the edge part of the horizontal material 30, and a scaffold or a support can be assembled by inserting the wedge part 31 in the wedge hole 222 of the steel pipe for support
  • wedge portions 31 are provided at both ends of the handrail, and are spanned between two columns.
  • the bracket is provided with a plurality of wedge portions so as to engage with the upper and lower wedge holes 222 of the same column.
  • the horizontal joint may be a fixed length or a variable length.
  • the variable-length horizontal link has, for example, a slide bar structure, can be adjusted to a length according to the construction site, and can be assembled after being fixed with a pin, for example.
  • variable length horizontal joints can be suitably used in the support work.
  • the horizontal joint is preferably used in the support work, and can be prevented from falling and sliding and can be increased in strength by being attached in two or more directions during the support work assembly. By using the horizontal joint having the wedge portion 31, the strength is maintained without using a brace (muscle bracing).
  • Each of the wedge portions 31 has a retaining surface 311.
  • the retaining surface 311 is a surface where the wedge portion 31 is in contact with the steel pipe side surface 211.
  • the holding surface 311 is installed along the steel pipe side surface 211.
  • the retaining surface 311 has the same curved surface as the steel pipe side surface 211. That is, the holding surface 311 has an arcuate curved surface, and the radius of the arc is preferably the same as the radius of the steel pipe 21.
  • the wedge portion 31 is securely coupled to the steel pipe 21 by the holding surface 311 having the same curved surface as the side surface of the steel pipe, and can maintain the same axial direction as the steel pipe 21 and does not rotate. Therefore, safety can be ensured.
  • the horizontal member steel pipe 32 constituting the horizontal member 30 is welded to the front surface and both side surfaces of the wedge portion 31.
  • the welded joint area is increased, and the wedge portion 31 and the horizontal steel pipe 32 can be reliably coupled to ensure safety.
  • a joint pipe 50 can be used.
  • the joint pipe may have a convex portion on the side surface of the central portion, and the steel pipe side surface 211 and the side surface of the column may be formed smoothly. There may not be such a convex part.
  • the steel pipe for support can be fixed by a joint pin 411. By using a joint pipe without the convex portion and pulling out the joint pin, a part of the installed scaffolding or support work can be pulled out. By removing a part of the member in a place where the strength can be maintained and diverting it to the upper part of the scaffold, the scaffold member can be reduced.
  • the length added between the steel pipes for the columns by the joint pipe is not limited, but is about 0 to 45 mm, preferably 10 to 40 mm, more preferably 15 to 35 mm, and still more preferably 20 to 30 mm, most preferably 25 mm.
  • the present invention also relates to a bracket 60 that can be coupled to a support (a support made of the support steel pipe or a support to which two or more support steel pipes are connected) by a plurality of wedges.
  • the bracket 60 includes a support steel pipe portion 61, a first support arm 62, a first vertical support portion 64, and a second support arm 63 having the same structure as the support steel pipe. Furthermore, you may provide required members, such as a 2nd vertical support part.
  • the steel pipe portion 61 for struts has a length of 1 or 2 units, preferably 1 unit.
  • the steel pipe portion for support is supported by the first support arm and the second support arm. Furthermore, it may be supported from the lower part by other steel pipes for columns.
  • the material and shape of the first support arm 62, the first vertical support part 64, the second support arm 63, and the second vertical support part are not particularly limited, but are preferably steel pipes and steel pipes having an outer diameter of 48.6 mm. Is particularly preferred.
  • the first support arm 62 includes a wedge portion 621 at one end.
  • the first support arm 62 is welded to the three surfaces of the front surface and both side surfaces of the wedge portion 621, and is welded to the three surfaces so as to grip the wedge portion, thereby increasing the weld joint area and the first support arm 62 to the first portion.
  • the support arm 62 can be securely coupled, and safety can be ensured.
  • the other end of the first support arm 62 is welded at a right angle to the side surface of the upper portion of the horizontal member connecting portion 611 of the support steel pipe portion 61.
  • the first vertical support portion 64 has one end welded at right angles to the side surface of the first support arm, is parallel to the column, and can be inserted into the wedge hole of the horizontal member connecting portion of the column.
  • the wedge part 641 is provided.
  • the wedge portion 641 and the wedge portion 621 of the first arm can be inserted into the wedge holes of the horizontal material connecting portions adjacent to each other on the same column.
  • the first vertical support portion 64 includes 1 to 5 wedge portions 641, preferably 1 to 3 wedge portions 641, more preferably 1 to 2 wedge portions 641.
  • the wedge portion 621 and the wedge portion 641 have the same structure, shape, and features as the wedge portion 31.
  • the second support arm 63 is welded to the side surface of the first vertical support portion 64 at a right angle, and the other end portion is perpendicular to the side surface of the lower portion of the horizontal member connecting portion 611 of the steel pipe portion 61 for the column. Welded and parallel to the first support arm 62.
  • the second support arm is for reducing the load on the first support arm and ensuring the strength of the bracket.
  • the bracket of the present invention may further include another support arm.
  • the second vertical support portion 65 is positioned between the first vertical support portion 64 and the steel pipe portion 61 for support in parallel with both members. Preferably, it is located in the center of the 1st vertical support part 64 and the steel pipe part 61 for support
  • the second vertical support portion ensures the strength of the bracket.
  • the bracket of the present invention may further have a vertical support portion.
  • the present invention also relates to a prefabricated scaffold or support that further includes the bracket 60 of the present invention.
  • a scaffold or a support can be assembled easily and skillfully.
  • the assembly work is simplified.
  • the joint pipe joint pipe having no convex portion connected to the lower support steel pipe is provided.
  • the steel pipe for the column below the bracket can be removed by removing the joint pin and shifting the joint pipe.
  • the removed member such as the steel pipe for the column can be diverted to the upper part or other places, and the scaffold member can be reduced while securing the strength.
  • the steel pipe for supporting column of the present invention and the assembly type scaffolding or supporting structure including the same are used for construction work, repair, etc., and can be assembled easily and in a small place, and has a high safety working environment. I will provide a.

Abstract

The present invention provides prefabricated scaffolding and timbering that are easy to assemble and have sufficient strength and a high degree of safety. The present invention provides a support steel pipe having a horizontal member connection portion provided with a circular outer edge portion at the outer edges of receiving metal fittings each having a wedge hole in prefabricated scaffolding or timbering set up by coupling supports and horizontal members using wedges. The horizontal member connection portions are provided at regular intervals on the side surface of the support or the assembled support. A plurality of safety belt hooks can be hung to the circular outer edge portion, and safety belt hook hanging portions are provided at regular intervals in the support. Consequently, workers can each always hang the safety belt hook in the vicinity thereof not only while working but also while moving. Further, the circular outer edge portion also has a function of reinforcing the receiving metal fittings. Furthermore, the degree of safety is increased by the shapes of safety pins and wedge portions.

Description

足場または支保工の支柱用鋼管Steel pipe for scaffolding or support column
　本発明は建築工事等で使用される組立式足場または支保工に関する。 The present invention relates to an assembly type scaffold or support used in construction work or the like.
　建築物やその外壁の作業には足場を組む方法が多く利用されている。その主なものとしては、建築物外部に仮設の作業床や通路を設置して、作業員が建築物の建造、補修・メンテナンス若しくは塗装・洗浄を行っている。支保工は、コンクリートの床や梁の型枠をコンクリートの打設から硬化まで支持する構造物である。 A method of building a scaffold is often used to work on buildings and their outer walls. Mainly, temporary work floors and passages are installed outside the building, and workers are building, repairing, maintaining, painting, and cleaning the building. A support is a structure that supports a concrete floor and beam formwork from concrete placement to hardening.
　足場や支保工は、建築物の高さに合わせて上に組んでいく必要があり、工事全体に必要な水平材、手摺りおよび踏板等の数は膨大になるうえ、作業後にはその建築物周辺に組んだ機材をまた一つ一つ取り除かなければならない。よって、設置と解体における作業量が多く時間がかかった。近年、組立と解体が容易であることより、くさびを用いて部材を結合し、所定の構造に組み立てる方式の足場や支保工が用いられるようになってきており（特許文献１、非特許文献１）、より一層の強度と安全性が求められている。 Scaffolding and supporting works need to be assembled according to the height of the building, and the number of horizontal materials, handrails, and treads required for the entire construction will be enormous, and the building will be You will have to remove the equipment you have built around you. Therefore, the amount of work for installation and dismantling was large and took time. In recent years, since the assembly and disassembly are easy, scaffolds and support methods of combining members using a wedge and assembling into a predetermined structure have been used (Patent Document 1, Non-Patent Document 1). ), Greater strength and safety are required.
　足場や支保工では、支持用の垂直部分と、作業員の移動や作業用の水平部分とを有し、作業員は上下左右に移動して作業をする。高所作業員は墜落の危険を回避するために、安全帯を装着し、安全帯の一端のフックを体に取り付け、他端のフックを足場または支保工に取り付けることによって、足場や支保工の組立、解体、および施工作業における移動の安全性を高めている。しかしながら、足場や支保工に安全帯のフックを掛ける箇所が比較的少ないため、常に安全帯のフックを掛けた状態で移動することは困難であり、危険であった。例えば、複数の作業員が全員所定の作業位置によじ登ってからしかフック掛けることができず、移動過程における危険性が高かった。 In scaffolding and support work, it has a vertical part for support and a horizontal part for worker movement and work, and the worker moves up, down, left and right to work. In order to avoid the risk of falling, an aerial worker installs a safety belt, attaches a hook at one end of the safety belt to the body, and attaches a hook at the other end to the scaffold or support. Increases safety in assembly, dismantling, and construction work. However, since there are relatively few places where the safety belt hooks are hooked on the scaffolding or the support work, it is difficult and dangerous to move in a state where the safety belt hooks are always hooked. For example, a plurality of workers can only be hooked after climbing up to a predetermined work position, and there is a high risk in the movement process.
特開２００２－２７６１５２号公報JP 2002-276152 A
　かかる従来の問題に鑑み、本発明の解決しようとする課題は、組立が容易で強度が十分であり、作業や移動における安全性の高い足場および／または支保工を提供することにある。 In view of such a conventional problem, the problem to be solved by the present invention is to provide a scaffold and / or a support work that is easy to assemble, has sufficient strength, and has high safety in work and movement.
　上記課題を解決するために、以下の発明を見出した。
１．縦に貫通するくさび孔を有する受け金具および該受け金具の外縁に接する円形外縁部が備えられている水平材連結部が、鋼管側面に少なくとも１つ設けられている組立式足場または支保工の支柱用鋼管。
２．前記円形外縁部は、前記複数の受け金具全てに溶接されて、安全帯のフック掛け部を形成する前項１に記載の支柱用鋼管。
３．中央部に前記水平材連結部が備えられた２５０～４００ｍｍの鋼管を１ユニットとし、１～１５ユニットの長さを有する、または、該長さからジョイント管により追加される長さが短縮された長さを有する、前項１または２に記載の支柱用鋼管。
４．くさび部の抜け落ちを防止するための２本の安全ピンが支柱用鋼管を十字に貫通するように、安全ピン用孔が備えられている、前項１～３のいずれか一に記載の支柱用鋼管。
５．前項１～４のいずれか一に記載の支柱用鋼管、および端部にくさび部を備える水平材を含む組立式足場または支保工。
６．前記くさび部の前記鋼管側面と接する面が、該鋼管側面と同一の円弧状の曲面である前項５に記載の組立式足場または支保工。
７．前記水平材を構成する鋼管が、くさび部の前面と両側面の三面に溶接されている前項５または６に記載の組立式足場または支保工。
８．前項１～４のいずれか一に記載の支柱用鋼管からなる支柱用鋼管部、
　一方の端部がくさび部を備え、他方の端部が該支柱用鋼管部の水平材連結部の上部の側面に直角に溶接結合されている第一支持アーム、
　一方の端部が第一支持アームの側面に直角に溶接結合され、支柱と平行であり、支柱の水平材連結部のくさび孔に挿入可能な１以上のくさび部を備えている第一垂直支持部、
および、
　一方の端部が第一垂直支持部の側面に直角に溶接結合され、他方の端部が該支柱用鋼管部の水平材連結部の下部の側面に直角に溶接結合され、該第一支持アームと平行である第二支持アーム、
を備えるブラケット。
９．前項８に記載のブラケットを含む前項５～７に記載の組立式足場または支保工。 In order to solve the above problems, the inventors have found the following invention.
1. Assembled scaffold or support column having at least one horizontal member connecting portion provided on a side surface of a steel pipe, which is provided with a receiving metal fitting having a wedge hole penetrating vertically and a circular outer edge portion in contact with the outer edge of the receiving metal fitting Steel pipe.
2. The steel pipe for supporting columns according to the preceding item 1, wherein the circular outer edge portion is welded to all of the plurality of receiving metal fittings to form a hook hanging portion of a safety belt.
3. A steel pipe of 250 to 400 mm provided with the horizontal material connecting part at the center is one unit, and has a length of 1 to 15 units, or the length added by the joint pipe is shortened from the length. 3. The steel pipe for supporting columns according to item 1 or 2, which has a length.
4). 4. The support steel pipe according to any one of the preceding items 1 to 3, wherein a safety pin hole is provided so that the two safety pins for preventing the wedge portion from falling off penetrate the support steel pipe in a cross shape. .
5. 5. A prefabricated scaffold or support comprising the steel pipe for a column according to any one of 1 to 4 above and a horizontal member having a wedge portion at an end.
6). 6. The assembly type scaffolding or supporting structure according to the preceding item 5, wherein a surface of the wedge portion that contacts the side surface of the steel pipe is an arcuate curved surface that is the same as the side surface of the steel pipe.
7). 7. The assembly type scaffolding or supporting structure according to 5 or 6 above, wherein the steel pipe constituting the horizontal member is welded to three surfaces of the front surface and both side surfaces of the wedge portion.
8). A steel pipe part for struts comprising the steel pipe for struts according to any one of the preceding items 1 to 4,
A first support arm having one end provided with a wedge portion and the other end welded at right angles to a side surface of the upper portion of the horizontal member connecting portion of the steel pipe portion for the column;
A first vertical support having one or more wedge portions welded at right angles to the side surface of the first support arm, parallel to the column, and capable of being inserted into a wedge hole in the horizontal member connecting portion of the column. Part,
and,
One end is welded at right angles to the side surface of the first vertical support portion, and the other end is welded at right angles to the lower side surface of the horizontal member connecting portion of the column steel pipe portion, and the first support arm A second support arm, which is parallel to the
With bracket.
9. The assembly type scaffolding or supporting structure according to any one of the preceding items 5 to 7, including the bracket according to the preceding item 8.
　本発明の支柱用鋼管の水平材連結部に備えられている円形外縁部は、受け金具の強度を補強するとともに、フック掛け部を形成する。このフック掛け部には、安全帯のフックを複数掛けることができる。組み立てられた足場や支保工の支柱には水平材連結部が、等間隔で（１ユニット毎に）多数存在するため、安全帯のフック掛け部が作業員の近くに常に存在することになり、作業員の移動時や作業時の安全を確保することができる。
　本発明の支柱用鋼管を用いた支保工は、支保工としての機能に加えて、足場の一部として使用することができる。本発明の支柱用鋼管を用いた支保工に、ブラケット、踏板、手摺り、水平つなぎ、および本発明の支柱用鋼管等を追加して組み立てることにより足場を形成させることができる。
　また、本発明の支柱用鋼管と本発明のブラケットを組み合せて用いることにより、簡易に手際よく足場または支保工を組立てることができる。また、ブラケットより下方の足場部材を上方の足場部材に転用することができる。たとえば、下方の外壁の作業が終了した後、下方の足場外面の支柱用鋼管と水平部材を取り外し、ブラケットの上方に取り付け、上方の作業用足場とすることができる。このように転用することにより足場部材を削減することができる。
　さらに、水平材のくさび部の抜け落ちを防ぐ安全ピンを備えることができるので、揺れや振動などによりくさび部とくさび孔の結合が緩んだとしても、くさび部がくさび孔から抜けるおそれはなくきわめて安全性に優れている。
　また、くさび部が鋼管側面と接する面は、該鋼管側面と同一の円弧状の曲面であるため、くさび部と鋼管の接触面が広く、くさび部が安定し、また、くさび部の軸が回動することがなく強度に優れている。
　さらに、水平材を構成する鋼管（水平材鋼管）がくさび部の前面と両側面の三面に溶接され、鋼管とくさび部の溶接面積が広く強度に優れている。 The circular outer edge portion provided in the horizontal member connecting portion of the steel pipe for supporting column of the present invention reinforces the strength of the receiving metal and forms a hook hanging portion. A plurality of safety belt hooks can be hooked on the hook hook portion. Since there are many horizontal material connecting parts at regular intervals (for each unit) in the assembled scaffolding and support column, the hooking part of the safety belt always exists near the worker, It is possible to ensure safety when the worker moves or works.
In addition to the function as a support work, the support work using the steel pipe for a column of the present invention can be used as a part of a scaffold. A scaffold can be formed by adding a bracket, a footboard, a handrail, a horizontal joint, a steel pipe for a column of the present invention, and the like to a support using the steel pipe for a column of the present invention.
Moreover, by using the steel pipe for a column of the present invention in combination with the bracket of the present invention, a scaffold or a support can be assembled easily and skillfully. Moreover, the scaffold member below the bracket can be diverted to the upper scaffold member. For example, after the work on the lower outer wall is completed, the steel pipe for a column and the horizontal member on the outer surface of the lower scaffolding can be removed and attached to the upper part of the bracket to form an upper working scaffold. By diverting in this way, the scaffold member can be reduced.
In addition, a safety pin that prevents the wedge part of the horizontal member from falling off can be provided, so even if the connection between the wedge part and the wedge hole is loosened due to shaking or vibration, the wedge part is not likely to come out of the wedge hole, so it is extremely safe Excellent in properties.
In addition, the surface where the wedge part contacts the side surface of the steel pipe is the same arcuate curved surface as the side surface of the steel pipe, so that the contact surface between the wedge part and the steel pipe is wide, the wedge part is stable, and the axis of the wedge part rotates. It does not move and has excellent strength.
Furthermore, the steel pipe (horizontal material steel pipe) which comprises a horizontal material is welded to three surfaces, the front surface of a wedge part, and both sides | surfaces, and the welding area of a steel pipe and a wedge part is wide and excellent in intensity | strength.
図１は、本発明の支柱用鋼管（１ユニット）の一例の斜視図である。FIG. 1 is a perspective view of an example of a steel pipe for a support (1 unit) according to the present invention. 図２は、本発明の支柱用鋼管（１ユニット）の一例の正面図である。FIG. 2 is a front view of an example of a steel pipe for a support (1 unit) according to the present invention. 図３は、支柱用鋼管と水平材の組立概略図である。FIG. 3 is an assembly schematic diagram of a steel pipe for a column and a horizontal member. 図４は、（１）くさび部の平面図と（２）水平材端部の側面図である。FIG. 4 is (1) a plan view of the wedge portion and (2) a side view of the end portion of the horizontal member. 図５は、図４のa1－a2の断面の概略図である。FIG. 5 is a schematic view of a cross section a1-a2 of FIG. 図６は、本発明の支柱用鋼管の連結を示す概略図である。FIG. 6 is a schematic view showing the connection of the steel pipes for struts of the present invention. 図７は、本発明の支柱用鋼管からなる支柱に連結している本発明のプラケットの側面図である。FIG. 7 is a side view of the placket of the present invention connected to a column composed of the steel pipe for column of the present invention.
　本発明の支柱用鋼管は、組み立てられて足場、支保工、または、支保工兼足場として使用されるものである。複数の支柱用鋼管は、所望の水平材が架け渡されて、足場または支保工が必要な場所に所定の間隔で建てつけられる。また、支柱用鋼管の軸方向には、支柱用鋼管同士が接続されて、足場または支保工を所望の高さにすることができる。支柱用鋼管の側面に設けられている水平材連結部の受け金具のくさび孔に、水平材の端部に設けられているくさび部を挿入することにより、水平材を支柱用鋼管に結合させて所定の構造に組立てるものである。 The steel pipe for a column of the present invention is assembled and used as a scaffold, a support work, or a support work / scaffolding work. A plurality of steel pipes for struts are built at predetermined intervals in a place where a desired horizontal member is bridged and a scaffold or a supporting work is required. Moreover, the steel pipes for support | pillars are connected in the axial direction of the steel pipe for support | pillars, A scaffold or a support can be made into desired height. By inserting the wedge part provided at the end of the horizontal member into the wedge hole of the receiving member of the horizontal member connecting part provided on the side surface of the steel pipe for column, the horizontal member is joined to the steel pipe for column. It is assembled into a predetermined structure.
　本発明の支柱用鋼管１０は、鋼管２１の側面に水平材連結部２０が少なくとも１つ設けられている。また、該水平材連結部２０には、縦に貫通するくさび孔２２２を有する受け金具２２と、その受け金具の外縁に接する円形外縁部２３が備えられている。本発明の支柱用鋼管の外径にとくに制限はないが、直径４８．６ｍｍの鋼管が好ましい。 The column steel pipe 10 of the present invention is provided with at least one horizontal member connecting portion 20 on the side surface of the steel pipe 21. Further, the horizontal member connecting portion 20 is provided with a receiving metal fitting 22 having a wedge hole 222 penetrating vertically and a circular outer edge portion 23 in contact with the outer edge of the receiving metal fitting. Although there is no restriction | limiting in particular in the outer diameter of the steel pipe for support | pillars of this invention, The steel pipe of diameter 48.6mm is preferable.
　受け金具２２は支柱用鋼管の側面の同一の高さに複数個、好ましくは２～４個、軸方向と直角に突設されている。そして、各々の受け金具は好ましくは直角に、又は逆方向（１８０度）に設けられている。各受け金具２２にはくさび孔２２２が上下に貫通して形成されている。くさび孔は上端開口部の面積が大きく徐々に断面積が小さくなり、下端開口部の面積が最も小さい。受け金具の材質や支柱との結合方法は特に限定されるものではないが、好ましくは、鋼等の金属板をコの字状に折り曲げて鋼管の側面２１に溶接接合する。 A plurality of, preferably 2 to 4, receiving metal fittings 22 are provided at the same height on the side surface of the steel pipe for supporting columns and project at right angles to the axial direction. Each bracket is preferably provided at a right angle or in the opposite direction (180 degrees). Each receiving bracket 22 is formed with a wedge hole 222 penetrating vertically. The wedge hole has a large area at the upper end opening and the sectional area gradually decreases, and the area at the lower end opening is the smallest. The material of the metal fitting and the method of coupling with the support are not particularly limited, but preferably, a metal plate such as steel is bent into a U shape and welded to the side surface 21 of the steel pipe.
　受け金具２２の軸方向の長さは、例えば４０～８０ｍｍである。好ましくは、５０～７０ｍｍ、さらに好ましくは５５～６５ｍｍ、最も好ましくは６０ｍｍである。くさび孔２２２の上端開口部の横幅は、１５～３０ｍｍ、好ましくは、１８～２５ｍｍ、さらに好ましくは、２０ｍｍである。縦幅も同程度である。 The length in the axial direction of the metal fitting 22 is, for example, 40 to 80 mm. Preferably, it is 50 to 70 mm, more preferably 55 to 65 mm, and most preferably 60 mm. The lateral width of the upper end opening of the wedge hole 222 is 15 to 30 mm, preferably 18 to 25 mm, and more preferably 20 mm. The vertical width is about the same.
　円形外縁部２３は、受け金具２２の外縁に接して、受け金具２２を覆うように備えられている。円形外縁部２３は、受け金具の強度を補強するとともに、安全帯のフック掛け部２３１を形成する。円形外縁部２３と隣接する２個の受け金具２２の間にそれぞれフック掛け用スペース２２６が形成される。該スペースに対応する円形外縁部が、フック掛け部２３１になっている。このフック掛け部２３１に作業員の安全帯のフックを１または複数掛けることができ、安全保護が図られる。なお、受け金具２２を補強のために平らな鋼板で直線的に覆った場合も、該鋼板と隣接する２個の受け金具２２の間にそれぞれスペースが形成されるが、該鋼板と鋼管側面２１１の距離が短く、フックを掛けることができないかまたは掛け難い。ところが、本発明のフック掛け用スペース２２６は、円形外縁部が円形であるため、フック掛け部２３１と鋼管側面２１１の距離が長くフックを掛け易い。 The circular outer edge portion 23 is provided so as to be in contact with the outer edge of the metal fitting 22 and to cover the metal fitting 22. The circular outer edge portion 23 reinforces the strength of the metal fitting and forms a hook 231 for a safety band. Hook-hanging spaces 226 are formed between the circular outer edge portion 23 and two adjacent metal fittings 22, respectively. A circular outer edge portion corresponding to the space is a hook hook portion 231. One or a plurality of hooks of the worker's safety belt can be hooked on the hook hook portion 231 to achieve safety protection. In addition, even when the receiving bracket 22 is linearly covered with a flat steel plate for reinforcement, a space is formed between each of the two receiving brackets 22 adjacent to the steel plate. The distance is short and cannot be hooked or difficult to hook. However, since the hook outer space 226 of the present invention has a circular outer edge portion, the distance between the hook hook portion 231 and the steel pipe side surface 211 is long and it is easy to hook the hook.
　円形外縁部２３の材質や支柱との結合方法は特に限定されるものではないが、好ましくは、環状の鋼を、複数の受け金具２２の全てに溶接接合する。好ましくは、４つの受け金具２２の外縁部に溶接接合する。円形外縁部２３の幅は１０～４０ｍｍ、好ましくは、１５～３０ｍｍ、より好ましくは１７～２５ｍｍ、最も好ましくは２０ｍｍである。１０ｍｍより細いと強度が弱く、４０ｍｍより太いとフックを掛け難い。円形外縁部の直径は、７０～１１０ｍｍ、好ましくは、７５～１００ｍｍ、より好ましくは、７８～９６ｍｍである。７０ｍｍより小さいとフックを掛け難い。円形外縁部は上部直径が大きく、下部直径が小さい形状が好ましい。 Although the material of the circular outer edge portion 23 and the method of coupling with the support are not particularly limited, preferably, annular steel is welded to all of the plurality of receiving brackets 22. Preferably, welding is joined to the outer edge portions of the four receiving brackets 22. The width of the circular outer edge 23 is 10 to 40 mm, preferably 15 to 30 mm, more preferably 17 to 25 mm, and most preferably 20 mm. If it is thinner than 10 mm, the strength is weak, and if it is thicker than 40 mm, it is difficult to hook. The diameter of the circular outer edge is 70 to 110 mm, preferably 75 to 100 mm, more preferably 78 to 96 mm. If it is smaller than 70 mm, it is difficult to hook. The circular outer edge portion preferably has a shape with a large upper diameter and a small lower diameter.
　本発明の支柱用鋼管は、２００～５００ｍｍを１ユニットとすることができる。より好ましくは、２５０～４００ｍｍ、さらに好ましくは２７０～３５０ｍｍ、さらに好ましくは２７０～３３０ｍｍ、最も好ましくは３００ｍｍを１ユニットとすることができる。１ユニットのほぼ中央部に１つの水平材連結部２０が設けられる。本発明の支柱用鋼管１０の長さに、制限はないが、例えば１～１５ユニットの長さを有する。また、例えば１７５ｍｍ～４５００ｍｍの長さを有する。これら種々の長さの支柱用鋼管を組み合わせることにより、自在に足場および支保工を組立てることができる。なお、２ユニット以上の支柱用鋼管では、所定の１ユニットの間隔で水平材連結部２０が鋼管２１の側面に設けられている。すなわち、複数の水平材連結部２０が支柱用鋼管に設けられている場合は、１ユニット間隔で水平材連結部２０が備えられ、最も好ましくは、３００ｍｍ間隔で水平材連結部２０が配置されている。 The steel pipe for supporting column of the present invention can be 200 to 500 mm as one unit. More preferably, 250 to 400 mm, more preferably 270 to 350 mm, further preferably 270 to 330 mm, and most preferably 300 mm can be defined as one unit. One horizontal member connecting portion 20 is provided at substantially the center of one unit. The length of the steel pipe 10 for struts of the present invention is not limited, but has a length of 1 to 15 units, for example. For example, it has a length of 175 mm to 4500 mm. By combining these various lengths of steel pipes for pillars, scaffolds and supporters can be assembled freely. In addition, in the steel pipes for supporting columns of two or more units, the horizontal member connecting portions 20 are provided on the side surface of the steel pipe 21 at a predetermined one unit interval. That is, when a plurality of horizontal member connecting portions 20 are provided on the steel pipe for support columns, the horizontal member connecting portions 20 are provided at intervals of one unit, and most preferably, the horizontal member connecting portions 20 are arranged at intervals of 300 mm. Yes.
　本発明の支柱用鋼管同士を接続する場合も、接続部の上下に隣接する水平材連結部２０の間隔は所定の１ユニットの間隔を保持することが好ましい。支柱用鋼管を、ジョイント管５０を使用して接続する場合は、ジョイント管５０により追加される長さ分について、支柱用鋼管の端部を短くすることができる。例えば、支柱用鋼管の下端の１ユニットは所定のユニットの長さよりジョイント管により追加される長さ分を短くすることができる。例えば、１ユニットが３００ｍｍであり、ジョイント管により２５ｍｍの長さが追加される場合は、下端のユニットの長さは２７５ｍｍであり、１ユニットの本発明の支柱用鋼管の長さは２７５ｍｍ、２ユニットの本発明の支柱用鋼管の長さは５７５ｍｍ、３ユニットの本発明の支柱用鋼管の長さは、８７５ｍｍ、４ユニットの本発明の支柱用鋼管の長さは１１７５ｍｍ、５ユニットの本発明の支柱用鋼管の長さは１４７５ｍｍ、６ユニットの本発明の支柱用鋼管の長さは、１７７５ｍｍ、７ユニットの本発明の支柱用鋼管の長さは２０７５ｍｍ、８ユニットの本発明の支柱用鋼管の長さは２３７５ｍｍ、９ユニットの本発明の支柱用鋼管の長さは、２６７５ｍｍ、１０ユニットの本発明の支柱用鋼管の長さは、２９７５ｍｍ、１１ユニットの本発明の支柱用鋼管の長さは３２７５ｍｍ、１２ユニットの本発明の支柱用鋼管の長さは３５７５ｍｍ、１３ユニットの本発明の支柱用鋼管の長さは、３８７５ｍｍ、１４ユニットの本発明の支柱用鋼管の長さは４１７５ｍｍ、１５ユニットの本発明の支柱用鋼管の長さは４４７５ｍｍにすることができる。これら種々の長さの支柱用鋼管を組み合わせることにより、自在に足場および支保工を組立てることができる。支柱用鋼管の長さはそれぞれ相違しても、水平材連結部２０は所定の間隔で支柱に配置される。 Also in the case of connecting the steel pipes for struts of the present invention, it is preferable that the interval between the horizontal member connecting portions 20 adjacent to the upper and lower portions of the connecting portion is a predetermined one unit. When connecting the steel pipe for support | pillar using the joint pipe | tube 50, the edge part of the steel pipe for support | pillar can be shortened about the length added by the joint pipe | tube 50. FIG. For example, one unit at the lower end of the steel pipe for supporting columns can be made shorter by the length added by the joint pipe than the length of a predetermined unit. For example, when one unit is 300 mm and a length of 25 mm is added by the joint pipe, the length of the lower end unit is 275 mm, and the length of the steel pipe for one column of the present invention is 275 mm, 2 The length of the steel pipe for the column of the present invention of the unit is 575 mm, the length of the steel pipe for the pillar of the present invention of 3 units is 875 mm, the length of the steel pipe for the column of the present invention of 4 units is 1175 mm, and the present invention of 5 units. The length of the steel pipe for the column of the present invention is 1475 mm, the length of the steel pipe for the column of 6 units of the present invention is 1775 mm, the length of the steel pipe for the column of 7 units of the present invention is 2075 mm, and the steel pipe for the column of the present invention of 8 units. The length of the steel pipe for a pillar of the present invention of 9 units is 2675 mm, the length of the steel pipe for a pillar of the present invention of 10 units is 2975 mm, 11 units. The length of the steel pipe for supporting column of the present invention is 3275 mm, the length of the steel pipe for supporting column of 12 units of the present invention is 3575 mm, the length of the steel pipe for supporting column of 13 units of the present invention is 3875 mm, and the length of the supporting column of 14 units of the present invention. The length of the steel pipe can be 4175 mm, and the length of the 15-unit steel pipe for a column of the present invention can be 4475 mm. By combining these various lengths of steel pipes for pillars, scaffolds and supporters can be assembled freely. Even if the lengths of the steel pipes for columns are different, the horizontal member connecting portions 20 are arranged on the columns at predetermined intervals.
　１ユニットが２００～５００ｍｍであり、水平部材連結部が２００～５００ｍｍ間隔で存在することにより、足場または支保工の支柱に安全帯のフック掛け部２３１が２００～５００ｍｍ間隔で提供される。作業者は常に身近に安全帯のフック掛け部２３１が存在することになり、移動や作業時の安全を確保することが可能になる。 1 unit is 200 to 500 mm, and horizontal member connecting portions are present at intervals of 200 to 500 mm, so that hooking portions 231 of a safety belt are provided at intervals of 200 to 500 mm on scaffolding or support columns. The worker always has a hook 231 for the safety belt in close proximity, so that safety during movement and work can be ensured.
　本発明の支柱用鋼管は、好ましくは、２本の安全ピン４０１が支柱用鋼管を十字に貫通するように、くさび部の抜け落ちを防止するための安全ピン用孔４０が備えられている。水平材３０の端部に設けられているくさび部３１がくさび孔２２２に挿入された後に、くさび部抜け落ち防止用安全ピン４０１が、安全ピン用孔４０に装着される。好ましくは、くさび部抜け落ち防止用安全ピン４０１は、４つの受け金具２２に対応して支柱用鋼管を貫通して十字に２本備えられる。該安全ピン４０１は、前記くさび孔２２２に挿入されたくさび部３１の上面の上側にその端部を突出させてくさび部３１の抜け落ちを防止する。該安全ピンは、例えばボルトとナットで構成される。これら安全ピンにより、より一層の安全を確保できる。 The support steel pipe of the present invention is preferably provided with a safety pin hole 40 for preventing the wedge portion from falling off so that the two safety pins 401 penetrate the support steel pipe in a cross shape. After the wedge part 31 provided at the end of the horizontal member 30 is inserted into the wedge hole 222, the safety pin 401 for preventing the wedge part from falling off is attached to the safety pin hole 40. Preferably, two safety pins 401 for preventing the wedge part from falling off are provided in a cross so as to pass through the support steel pipes corresponding to the four receiving brackets 22. The safety pin 401 has its end projecting above the upper surface of the wedge part 31 inserted into the wedge hole 222 to prevent the wedge part 31 from falling off. The safety pin is composed of, for example, a bolt and a nut. With these safety pins, further safety can be ensured.
　本発明は、また、前記支柱用鋼管１０および端部にくさび部３１を有する水平材３０を含む組み立て式足場または支保工に関する。本発明の組立式足場または支保工には、さらに他の部材を含むことができる。例えば、ジョイント管、ジョイントピン、安全ピン等が含まれていてもよい。 The present invention also relates to an assembly-type scaffolding or supporting structure including the steel pipe 10 for a column and a horizontal member 30 having a wedge part 31 at an end part. The assembled scaffold or support according to the present invention may further include other members. For example, a joint pipe, a joint pin, a safety pin, etc. may be included.
　水平材３０は、通常、別の支柱用鋼管に設けられている同一の高さにある２個または４個の水平材連結部２０の間に設置される。水平材３０は、手摺り、踏板、ブラケット、水平つなぎ等が挙げられる。水平材は３００～１８００ｍｍ、好ましくは、５００～１５００ｍｍ、さらに好ましくは、７００～１１００ｍｍの長さまたは長辺を有する。 The horizontal member 30 is usually installed between two or four horizontal member connecting portions 20 at the same height provided in another steel pipe for a column. Examples of the horizontal member 30 include a handrail, a tread, a bracket, and a horizontal bridge. The horizontal member has a length or a long side of 300 to 1800 mm, preferably 500 to 1500 mm, and more preferably 700 to 1100 mm.
　水平材３０の端部にはくさび部３１が設けられており、くさび部３１を支柱用鋼管のくさび孔２２２に挿入して結合することにより、足場または支保工を組立てることができる。例えば、手摺りの両端にはくさび部３１が設けられ、２本の支柱の間に架け渡される。また、例えば、四隅にくさび部３１が設けられている踏板の場合では、４本の支柱の間に架け渡される。また、例えば、ブラケットは同一の支柱の上下のくさび孔２２２に係合するように、複数のくさび部が設けられている。 The wedge part 31 is provided in the edge part of the horizontal material 30, and a scaffold or a support can be assembled by inserting the wedge part 31 in the wedge hole 222 of the steel pipe for support | pillars, and connecting. For example, wedge portions 31 are provided at both ends of the handrail, and are spanned between two columns. In addition, for example, in the case of a tread having wedge portions 31 provided at four corners, it is bridged between four columns. For example, the bracket is provided with a plurality of wedge portions so as to engage with the upper and lower wedge holes 222 of the same column.
　水平つなぎの両端にはくさび部３１が設けられ、２本の支柱の間に架け渡される。水平つなぎは、固定長であっても、可変長であってもよい。可変長の水平つなぎは、例えばスライドバー構造を有し、施工場所に応じた長さに調整し、例えばピンで固定した後に組み立てることができる。特に支保工では、可変長の水平つなぎを好適に用いることができる。水平つなぎは、支保工で好適に用いられ、支保工組立中に２方向以上に取付けることにより転倒や滑動を防止するとともに、強度を増加させることができる。くさび部３１を有する水平つなぎを用いることにより、ブレス（筋交）を用いなくとも強度が保持される。 く Wedges 31 are provided at both ends of the horizontal tether and spanned between the two struts. The horizontal joint may be a fixed length or a variable length. The variable-length horizontal link has, for example, a slide bar structure, can be adjusted to a length according to the construction site, and can be assembled after being fixed with a pin, for example. In particular, variable length horizontal joints can be suitably used in the support work. The horizontal joint is preferably used in the support work, and can be prevented from falling and sliding and can be increased in strength by being attached in two or more directions during the support work assembly. By using the horizontal joint having the wedge portion 31, the strength is maintained without using a brace (muscle bracing).
　くさび部３１はいずれも押止面３１１を有する。押止面３１１は、くさび部３１が鋼管側面２１１と接する面である。押止面３１１は鋼管側面２１１に沿って設置される。好ましくは、押止面３１１は鋼管側面２１１と同一の曲面を有する。すなわち、押止面３１１は円弧状の曲面を有し、その円弧の半径は、好ましくは鋼管２１のの半径と同一である。このような鋼管側面と同一の曲面を有する押止面３１１により、くさび部３１は鋼管２１に確実に結合されて、鋼管２１と同一軸方向を保つことができ、回動することはない。したがって、安全を確保できる。 Each of the wedge portions 31 has a retaining surface 311. The retaining surface 311 is a surface where the wedge portion 31 is in contact with the steel pipe side surface 211. The holding surface 311 is installed along the steel pipe side surface 211. Preferably, the retaining surface 311 has the same curved surface as the steel pipe side surface 211. That is, the holding surface 311 has an arcuate curved surface, and the radius of the arc is preferably the same as the radius of the steel pipe 21. The wedge portion 31 is securely coupled to the steel pipe 21 by the holding surface 311 having the same curved surface as the side surface of the steel pipe, and can maintain the same axial direction as the steel pipe 21 and does not rotate. Therefore, safety can be ensured.
　好ましくは、前記水平材３０を構成する水平材鋼管３２は、くさび部３１の前面と両側面の三面に溶接されている。くさび部を掴むように三面に溶接されることにより、溶接接合面積が広くなりくさび部３１と水平材鋼管３２を確実に結合させることができ、安全を確保できる。 Preferably, the horizontal member steel pipe 32 constituting the horizontal member 30 is welded to the front surface and both side surfaces of the wedge portion 31. By welding to the three surfaces so as to grip the wedge portion, the welded joint area is increased, and the wedge portion 31 and the horizontal steel pipe 32 can be reliably coupled to ensure safety.
　本発明の支柱用鋼管１０同士を接続するために、ジョイント管５０を用いることが可能である。ジョイント管は中心部の側面に凸部を有し、鋼管側面２１１と滑らかに支柱の側面を形成してもよい。このような凸部がなくてもよい。支柱用鋼管とはジョイントピン４１１により固定することができる。前記凸部がないジョイント管を使用して、ジョイントピンを抜くことにより、設置された足場または支保工の一部の部材を抜き取ることができる。強度が保つことができる場所にある部材を一部抜き取り足場の上部に転用することにより、足場部材を削減することができる。ジョイント管により、支柱用鋼管の間に追加される長さには制限はないが、０～４５ｍｍ程度であり、好ましくは、１０～４０ｍｍ、より好ましくは、１５～３５ｍｍ、さらに好ましくは、２０～３０ｍｍ、最も好ましくは２５ｍｍである。 In order to connect the steel pipes 10 for struts of the present invention, a joint pipe 50 can be used. The joint pipe may have a convex portion on the side surface of the central portion, and the steel pipe side surface 211 and the side surface of the column may be formed smoothly. There may not be such a convex part. The steel pipe for support can be fixed by a joint pin 411. By using a joint pipe without the convex portion and pulling out the joint pin, a part of the installed scaffolding or support work can be pulled out. By removing a part of the member in a place where the strength can be maintained and diverting it to the upper part of the scaffold, the scaffold member can be reduced. The length added between the steel pipes for the columns by the joint pipe is not limited, but is about 0 to 45 mm, preferably 10 to 40 mm, more preferably 15 to 35 mm, and still more preferably 20 to 30 mm, most preferably 25 mm.
　本発明は、また、支柱（前記支柱用鋼管からなる支柱または二以上の前記支柱用鋼管が連結された支柱）に複数のくさびにより結合可能なブラケット６０に関する。ブラケット６０は、前記支柱用鋼管と同一の構造を有する支柱用鋼管部６１、第一支持アーム６２、第一垂直支持部６４および第二支持アーム６３を備える。さらに、第二垂直支持部など必要な部材を備えてもよい。 The present invention also relates to a bracket 60 that can be coupled to a support (a support made of the support steel pipe or a support to which two or more support steel pipes are connected) by a plurality of wedges. The bracket 60 includes a support steel pipe portion 61, a first support arm 62, a first vertical support portion 64, and a second support arm 63 having the same structure as the support steel pipe. Furthermore, you may provide required members, such as a 2nd vertical support part.
　支柱用鋼管部６１は、１又は２ユニットの長さであり、好ましくは、１ユニットからなる。支柱用鋼管部は第一支持アームおよび第二支持アームで支持されている。さらに下部から他の支柱用鋼管で支持されていてもよい。 The steel pipe portion 61 for struts has a length of 1 or 2 units, preferably 1 unit. The steel pipe portion for support is supported by the first support arm and the second support arm. Furthermore, it may be supported from the lower part by other steel pipes for columns.
　第一支持アーム６２、第一垂直支持部６４、第二支持アーム６３および第二垂直支持部の材質および形状には特に制限はないが、好ましくは、鋼管であり、外径４８．６ｍｍの鋼管が特に好ましい。 The material and shape of the first support arm 62, the first vertical support part 64, the second support arm 63, and the second vertical support part are not particularly limited, but are preferably steel pipes and steel pipes having an outer diameter of 48.6 mm. Is particularly preferred.
　前記第一支持アーム６２は、一方の端部にくさび部６２１を備えている。好ましくは、第一支持アーム６２は、くさび部６２１の前面と両側面の三面に溶接され、くさび部を掴むように三面に溶接されることにより、溶接接合面積が広くなりくさび部６２１と第一支持アーム６２を確実に結合させることができ、安全を確保できる。第一支持アーム６２の他方の端部は、前記支柱用鋼管部６１の水平材連結部６１１の上部の側面に直角に溶接結合されている。 The first support arm 62 includes a wedge portion 621 at one end. Preferably, the first support arm 62 is welded to the three surfaces of the front surface and both side surfaces of the wedge portion 621, and is welded to the three surfaces so as to grip the wedge portion, thereby increasing the weld joint area and the first support arm 62 to the first portion. The support arm 62 can be securely coupled, and safety can be ensured. The other end of the first support arm 62 is welded at a right angle to the side surface of the upper portion of the horizontal member connecting portion 611 of the support steel pipe portion 61.
　前記第一垂直支持部６４は、一方の端部が第一支持アームの側面に直角に溶接結合されており、支柱と平行であり、支柱の水平材連結部のくさび孔に挿入可能な一以上のくさび部６４１を備える。くさび部６４１と第一アームのくさび部６２１は、同一の支柱上にある上下に隣り合う水平材連結部のくさび孔に挿入されることが可能である。好ましくは、第一垂直支持部６４は、１～５のくさび部６４１、好ましくは、１～３のくさび部６４１、より好ましくは１～２のくさび部６４１を備える。なお、くさび部６２１およびくさび部６４１は前記くさび部３１と同様の構造、形状および特徴を有するものである。 The first vertical support portion 64 has one end welded at right angles to the side surface of the first support arm, is parallel to the column, and can be inserted into the wedge hole of the horizontal member connecting portion of the column. The wedge part 641 is provided. The wedge portion 641 and the wedge portion 621 of the first arm can be inserted into the wedge holes of the horizontal material connecting portions adjacent to each other on the same column. Preferably, the first vertical support portion 64 includes 1 to 5 wedge portions 641, preferably 1 to 3 wedge portions 641, more preferably 1 to 2 wedge portions 641. The wedge portion 621 and the wedge portion 641 have the same structure, shape, and features as the wedge portion 31.
　第二支持アーム６３は、一方の端部が第一垂直支持部６４の側面に直角に溶接結合され、他方の端部が支柱用鋼管部６１の水平材連結部６１１の下部の側面に直角に溶接結合され、第一支持アーム６２と平行である。第二支持アームは第一支持アームへの荷重を軽減し、ブラケットの強度を確保するためのものである。本発明のブラケットは、さらに別の支持アームを備えていてもよい。 One end of the second support arm 63 is welded to the side surface of the first vertical support portion 64 at a right angle, and the other end portion is perpendicular to the side surface of the lower portion of the horizontal member connecting portion 611 of the steel pipe portion 61 for the column. Welded and parallel to the first support arm 62. The second support arm is for reducing the load on the first support arm and ensuring the strength of the bracket. The bracket of the present invention may further include another support arm.
　第二垂直支持部６５は、第一垂直支持部６４および支柱用鋼管部６１の間に両部材と平行に位置する。好ましくは、第一垂直支持部６４および支柱用鋼管部６１の中央に位置する。一端は第一支持アーム６２の側面に直角に溶接結合され、他端は第二支持アーム６３の側面に直角に溶接結合されている。本第二垂直支持部は、ブラケットの強度を確保するものである。本発明のブラケットは、さらに垂直支持部を有していてもよい。 The second vertical support portion 65 is positioned between the first vertical support portion 64 and the steel pipe portion 61 for support in parallel with both members. Preferably, it is located in the center of the 1st vertical support part 64 and the steel pipe part 61 for support | pillars. One end is welded to the side surface of the first support arm 62 at a right angle, and the other end is welded to the side surface of the second support arm 63 at a right angle. The second vertical support portion ensures the strength of the bracket. The bracket of the present invention may further have a vertical support portion.
　本発明は、また、本発明のブラケット６０をさらに含む組立式足場または支保工に関する。本発明のブラケットと本発明の支柱用鋼管を組み合せて簡易に手際よく足場または支保工を組立てることができる。例えば、本発明のブラケットを用いて、支柱をブロック状に組み立てて（支柱４本以上を用いて立体的に組み立てて）安定させることにより、組立作業が簡易になる。また、本発明のブラケットの支柱用鋼管部が、下部から本発明の支柱用鋼管により支持されていた場合に、下部の支柱用鋼管を連結していたジョイント管（凸部がないジョイント管）のジョイントピンをぬき、ジョイント管をずらすことにより、ブラケットより下部の支柱用鋼管をはずすことができる。はずされた支柱用鋼管等の部材は、上部や他の場所に転用可能であり、強度を確保しながら足場部材を削減することができる。 The present invention also relates to a prefabricated scaffold or support that further includes the bracket 60 of the present invention. By combining the bracket of the present invention and the steel pipe for a column of the present invention, a scaffold or a support can be assembled easily and skillfully. For example, by using the bracket of the present invention and assembling the pillars in a block shape (three-dimensionally using four or more pillars), the assembly work is simplified. In addition, when the steel pipe portion for the support column of the bracket of the present invention is supported from below by the steel tube for the support column of the present invention, the joint pipe (joint pipe having no convex portion) connected to the lower support steel pipe is provided. The steel pipe for the column below the bracket can be removed by removing the joint pin and shifting the joint pipe. The removed member such as the steel pipe for the column can be diverted to the upper part or other places, and the scaffold member can be reduced while securing the strength.
　本発明を具体例を用いて説明したが、これは本発明を限定するものではなく、本発明の範囲から逸脱しない限り、当業者が変更及び修正を加えることを許容するものである。 Although the present invention has been described using specific examples, it is not intended to limit the present invention and allows those skilled in the art to make changes and modifications without departing from the scope of the present invention.
　本発明の支柱用鋼管、およびそれを含む組立式足場または支保工は、建築工事や修理等に使用されるものであり、簡易に、そして狭い場所でも組立てることができ、安全性の高い作業環境を提供する。 The steel pipe for supporting column of the present invention and the assembly type scaffolding or supporting structure including the same are used for construction work, repair, etc., and can be assembled easily and in a small place, and has a high safety working environment. I will provide a.
　１０　　支柱用鋼管
　２０　　水平材連結部
　２１　　鋼管
　２１１　鋼管側面
　２２　　受け金具
　２２２　くさび孔
　２２６　フック掛け用スペース
　２３　　円形外縁部
　２３１　フック掛け部
　３０　　水平材
　３１　　くさび部
　３１１　押止面
　３２　　水平材鋼管
　４０　　安全ピン用孔
　４１　　ジョイントピン用孔
　４０１　安全ピン
　４１１　ジョイントピン
　５０　　ジョイント管
　６０　　ブラケット
　６１　　支柱用鋼管部
　６１１　支柱用鋼管部の水平材連結部
　６２　　第一支持アーム
　６２１　第一支持アームのくさび部
　６３　　第二支持アーム
　６４　　第一垂直支持部
　６４１　第一垂直支持部のくさび部
　６５　　第二垂直支持部 DESCRIPTION OF SYMBOLS 10 Steel pipe for support | pillars 20 Horizontal material connection part 21 Steel pipe 211 Steel pipe side surface 22 Receptacle 222 Wedge hole 226 Hook hooking space 23 Circular outer edge part 231 Hook hook part 30 Horizontal material 31 Wedge part 311 Holding surface 32 Horizontal material steel pipe 40 Safety pin Hole 41 for joint pin 401 Safety pin 411 Joint pin 50 Joint pipe 60 Bracket 61 Steel pipe part for column 611 Horizontal material connecting part of steel pipe part for pillar 62 First support arm 621 Wedge part of first support arm 63 Second support Arm 64 First vertical support portion 641 Wedge portion of first vertical support portion 65 Second vertical support portion

Claims (9)

  1. 　縦に貫通するくさび孔を有する受け金具および該受け金具の外縁に接する円形外縁部が備えられている水平材連結部が、鋼管側面に少なくとも１つ設けられている組立式足場または支保工の支柱用鋼管。 Assembled scaffold or support column having at least one horizontal member connecting portion provided on a side surface of a steel pipe, which is provided with a receiving metal fitting having a wedge hole penetrating vertically and a circular outer edge portion in contact with the outer edge of the receiving metal fitting Steel pipe.
  2. 　前記円形外縁部は、前記複数の受け金具全てに溶接されて、安全帯のフック掛け部を形成する請求項１に記載の支柱用鋼管。 The steel pipe for supporting columns according to claim 1, wherein the circular outer edge portion is welded to all of the plurality of receiving metal fittings to form a hook hanging portion of a safety belt.
  3. 　中央部に前記水平材連結部が備えられた２５０～４００ｍｍの鋼管を１ユニットとし、１～１５ユニットの長さを有する、または、該長さからジョイント管により追加される長さが短縮された長さを有する、請求項１または２に記載の支柱用鋼管。 A steel pipe of 250 to 400 mm provided with the horizontal material connecting part at the center is one unit, and has a length of 1 to 15 units, or the length added by the joint pipe is shortened from the length. The steel pipe for supporting columns according to claim 1 or 2, which has a length.
  4. 　くさび部の抜け落ちを防止するための２本の安全ピンが支柱用鋼管を十字に貫通するように、安全ピン用孔が備えられている、請求項１～３のいずれか一に記載の支柱用鋼管。 The support pin for a support according to any one of claims 1 to 3, wherein a safety pin hole is provided so that two safety pins for preventing the wedge portion from falling off penetrate the steel tube for the support in a cross shape. Steel pipe.
  5. 　請求項１～４のいずれか一に記載の支柱用鋼管、および端部にくさび部を備える水平材を含む組立式足場または支保工。 An assembly type scaffolding or supporting structure including the steel pipe for supporting columns according to any one of claims 1 to 4 and a horizontal member having a wedge portion at an end portion.
  6. 　前記くさび部の前記鋼管側面と接する面が、該鋼管側面と同一の円弧状の曲面である請求項５に記載の組立式足場または支保工。 6. The assembly type scaffolding or supporting structure according to claim 5, wherein a surface of the wedge portion that contacts the side surface of the steel pipe is an arcuate curved surface that is the same as the side surface of the steel pipe.
  7. 　前記水平材を構成する鋼管が、くさび部の前面と両側面の三面に溶接されている請求項５または６に記載の組立式足場または支保工。 The assembly type scaffolding or supporting structure according to claim 5 or 6, wherein the steel pipe constituting the horizontal member is welded to three surfaces of the front surface and both side surfaces of the wedge portion.
  8. 　請求項１～４のいずれか一に記載の支柱用鋼管からなる支柱用鋼管部、
    　一方の端部がくさび部を備え、他方の端部が該支柱用鋼管部の水平材連結部の上部の側面に直角に溶接結合されている第一支持アーム、
    　一方の端部が第一支持アームの側面に直角に溶接結合され、支柱と平行であり、支柱の水平材連結部のくさび孔に挿入可能な１以上のくさび部を備えている第一垂直支持部、
    および、
    　一方の端部が第一垂直支持部の側面に直角に溶接結合され、他方の端部が該支柱用鋼管部の水平材連結部の下部の側面に直角に溶接結合され、該第一支持アームと平行である第二支持アーム、
    を備えるブラケット。     A steel pipe part for struts comprising the steel pipe for struts according to any one of claims 1 to 4,
    A first support arm having one end provided with a wedge portion and the other end welded at right angles to a side surface of the upper portion of the horizontal member connecting portion of the steel pipe portion for the column;
    A first vertical support having one or more wedge portions welded at right angles to the side surface of the first support arm, parallel to the column, and capable of being inserted into a wedge hole in the horizontal member connecting portion of the column. Part,
    and,
    One end is welded at right angles to the side surface of the first vertical support portion, and the other end is welded at right angles to the lower side surface of the horizontal member connecting portion of the column steel pipe portion, and the first support arm A second support arm, which is parallel to the
    With bracket.
  9. 　請求項８に記載のブラケットを含む請求項５～７に記載の組立式足場または支保工。 The assembly type scaffolding or supporting structure according to any one of claims 5 to 7, including the bracket according to claim 8.
PCT/JP2013/081452 2012-11-23 2013-11-21 Suppot steel pipe for scaffolding or timbering WO2014080998A1 (en)

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US14/418,077 US20150152654A1 (en) 2012-11-23 2013-11-21 Support steel pipe and bracket for scaffolding or falsework, and scaffolding or falsework
CN201380012557.0A CN104487637A (en) 2012-11-23 2013-11-21 Support steel pipe for scaffolding or timbering

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TW101222737 2012-11-23
TW101222737U TWM454435U (en) 2012-11-23 2012-11-23 Scaffold
JP2013156202A JP5422075B1 (en) 2012-11-23 2013-07-27 Steel pipe for scaffolding or support column
JP2013-156202 2013-07-27

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WO2014080998A1 true WO2014080998A1 (en) 2014-05-30

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US20150152654A1 (en) 2015-06-04

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