JP7440067B2 - Post connector - Google Patents

Description

TECHNICAL FIELD The present invention relates to a strut connector used for connecting struts of assembled scaffolding at construction sites and the like.

Generally, at construction sites, etc., work is carried out by assembling scaffolding, and when doing so, it is necessary to connect and fix adjacent columns. Generally, prefabricated scaffolding is installed along the outer periphery of a building (construction), but the outer circumferential surface (peripheral wall) of a building is not necessarily straight, and the entire outer circumferential surface may be curved. There may be curved parts or uneven parts on a part of the outer circumferential surface, and in this case, the structure and arrangement of the scaffolding to be assembled becomes complicated, the number of parts increases, and the assembly work becomes labor-intensive. . Additionally, depending on the shape of the outer surface, it may not be possible to install assembled scaffolding in some areas, or a gap may be larger than other areas between the surrounding wall and assembled scaffolding, resulting in a lack of installation flexibility. be.
To address these problems, for example, Patent Document 1 discloses a handrail for a scaffold that constitutes a reinforcing member of a scaffold that can be erected by bending both ends thereof rotatably to match the radius of curvature of the outer periphery of a construction. Proposed.

Publication No. 7-45703

However, in the scaffolding handrail of Patent Document 1, coupling fittings that can be rotated in the horizontal direction around a pivot axis perpendicular to the horizontal plane are pivotally attached to both ends of the handrail body made of pipe material, and the A wedge-shaped locking member is installed vertically at the tip of the metal fitting. Therefore, even though it is possible to change the angle formed between the pipe material and the locking member by rotating the coupling fittings at both ends, the horizontal distance between the locking members at both ends does not change significantly. The distance between the supporting columns is also approximately constant. In other words, the distance between the columns connected by this scaffolding handrail is mostly limited by the length of the pipe material, and the installation position of the columns cannot be freely selected, resulting in a lack of versatility and ease of construction. Therefore, depending on the shape of the building, there was a problem in that scaffolding could not necessarily be installed along the outer periphery of the building.
The present invention has been made in view of the above circumstances, and has a high degree of freedom in selecting the distance between connected columns, is less likely to be restricted in the installation position of the columns, and is suitable for buildings of various shapes. To provide a column connector with excellent versatility and workability, which can reliably install a scaffold along the outer periphery of an object.

A column connector according to a first aspect of the invention that meets the above object is a column connector that connects adjacent columns of an assembled scaffold in the horizontal direction,
The first pipe part has first and second pipe parts arranged in series, and a rotational connecting means for connecting one side of the first pipe part and the other side of the second pipe part, The pipe portion and the second pipe portion include a connecting pipe material that is rotatable in a horizontal plane about the vertical rotation axis of the rotation connecting means,
The other end of the first pipe part and one end of the second pipe part are removably attached to locking parts that are provided on the sides of the adjacent pillars and have a U-shape in plan view. Vertical wedges are attached to each
Each of the vertical wedge members is integrally formed with an end surface that comes into contact with the outer circumferential surface of each of the pillars and a peripheral edge that stands up from the periphery of the end surface. It has a pipe attachment part that is attached and fixed to one end of the second pipe part, respectively.

In the strut connector according to the first invention, a distance L2 from the end surface portion of the vertical wedge member attached to one end side of the second pipe portion to the center of the vertical rotation axis of the rotation connection means is: It is preferable that the distance L1 be within a range of 1 to 15 times the distance L1 from the end surface of the vertical wedge member attached to the other end side of the first pipe section to the center of the vertical rotation axis of the rotation coupling means. .

A column connector according to a second invention that meets the above object is a column connector that horizontally connects adjacent columns of an assembled scaffold,
a first pipe section; an intermediate pipe section disposed in series on one side of the first pipe section; a second pipe section disposed in series on one side of the intermediate pipe section; a first rotating connection means connecting one side of the pipe section and the other side of the intermediate pipe section; and a second rotation connecting means connecting one side of the intermediate pipe section and the other side of the second pipe section. the first pipe part and the intermediate pipe part are rotatable in a horizontal plane about the vertical rotation axis of the first rotary joint part; The second pipe portion includes a connecting pipe material that is rotatable in a horizontal plane about the vertical rotation axis of the second rotation connecting means,
The other end of the first pipe part and one end of the second pipe part are removably attached to locking parts that are provided on the sides of the adjacent pillars and have a U-shape in plan view. Vertical wedges are attached to each
Each of the vertical wedge members is integrally formed with an end surface that comes into contact with the outer circumferential surface of each of the pillars and a peripheral edge that stands up from the periphery of the end surface. It has a pipe attachment part that is attached and fixed to one end of the second pipe part, respectively.

In the strut connector according to the second aspect of the invention, a distance L3 from the vertical rotation axis of the first rotation connection means to the vertical rotation axis of the second rotation connection means is a distance L3 between the vertical rotation axis of the first rotation connection means and the second rotation connection means. The range is 1 to 15 times the distance L4 from the end surface of the vertical wedge member attached to the other end to the vertical rotation axis of the first rotation coupling means, and It is preferable that the distance L5 be within a range of 1 to 15 times the distance L5 from the end surface of the vertical wedge member attached to one end side to the center of the vertical rotation axis of the second rotation coupling means.

In the strut connector according to the first and second aspects of the invention, a reinforcing portion may be provided at the bottom of the other end of the first pipe portion and the bottom of the one end of the second pipe portion.

In the strut connector according to the first and second aspects of the invention, each of the vertical wedge members may have a through hole that penetrates the end surface portion at a position of each of the pipe mounting portions.

The strut connector according to the first invention rotates the first and second pipe parts connected via the rotational connection means in a horizontal plane, thereby connecting the first pipe part and the second pipe part. As well as the angle formed by the pillars, the distance between the connected pillars can be selected from a wide range, providing excellent flexibility in installing the pillars. As a result, scaffolding can be efficiently installed along the perimeter of a building, while preventing the number of supports from increasing and the structure and placement of scaffolding from becoming complicated. can improve sex.

In the strut connector according to the first invention, the distance L2 from the end face of the vertical wedge member attached to one end side of the second pipe part to the center of the vertical rotation axis of the rotation connecting means If the distance from the end face of the vertical wedge member attached to the other end of the part to the center of the vertical rotation axis of the rotation coupling means is in the range of 1 to 15 times the distance L1, the dimensions (distances L1, L2) are different. By selecting and combining column connectors, scaffolding can be installed to accommodate buildings of various shapes, and the scaffolding has excellent installation flexibility.

The strut connector according to the second invention rotates the first and second pipe parts connected to both sides of the intermediate pipe part via the first and second rotational connecting means in a horizontal plane. Accordingly, the angle formed by the first pipe section and the second pipe section as well as the distance between the connected struts can be selected from a wide range, and the struts can be installed easily.

In the strut connector according to the second invention, the distance L3 from the vertical rotation axis of the first rotation connection means to the vertical rotation axis of the second rotation connection means is longer than the other end of the first pipe portion. The vertical wedge is attached to one end of the second pipe part and is within a range of 1 to 15 times the distance L4 from the end face of the vertical wedge member attached to the side to the vertical rotation axis of the first rotation coupling means. If the distance from the end face of the material to the center of the vertical rotation axis of the second rotation connection means is within the range of 1 to 15 times the distance L5, select a column connection device with different dimensions (distances L3, L4, L5). By combining these methods, scaffolding can be installed to accommodate buildings with more complex shapes, and the flexibility of scaffolding installation is improved.

In the strut connector according to the first and second inventions, when the reinforcing portion is provided at the bottom of the other end of the first pipe part and the bottom of the one end of the second pipe part, the first pipe part Prevents deformation of the first and second pipe parts due to impact when removing the vertical wedge from the locking part of each support by hitting the bottom of the other end and the bottom of one end of the second pipe part with a hammer, etc. It has excellent shape stability and durability.

In the strut connectors according to the first and second inventions, when each vertical wedge member has a through hole that penetrates the end face at the position of each pipe attachment part, the first and second vertical wedge members to which the vertical wedge member is attached are When hot-dip galvanizing (dobu-zuke plating) the pipe part, the other end of the first pipe part and one end of the second pipe part are prevented from being blocked by the pipe attachment part, and the inside of the pipe part is molten galvanized. Zinc does not accumulate and plating can be performed efficiently.

FIG. 2 is a front view of the support column connector according to the first embodiment of the present invention. (A) is a plan view of the same pillar connector, and (B) is a bottom view of the same pillar connector. (A) is a left side view of the same pillar connector, and (B) is a right side view of the same pillar connector. (A) is a front view showing how the column connector is used, and (B) is a plan view showing how the column connector is used. It is a top view explaining operation|movement of the same support|pillar connector. FIG. 4B is a cross-sectional view taken along line AA in FIG. 4(B). FIG. 7 is a front view of a column connector according to a second embodiment of the present invention.

Next, embodiments embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention.
Hereinafter, with reference to FIGS. 1 to 6, a strut connector 10 according to a first embodiment of the present invention will be described.
As shown in FIGS. 4A and 4B, the column connector 10 is used to horizontally connect adjacent columns 11 of assembled scaffolding at a construction site or the like.
As shown in FIGS. 1, 2(A) and 2(B), 4(A) and 4(B), FIG. 5, and FIG. The first pipe part 12 and the second pipe part 12 have pipe parts 12 and 13, and a rotary connection means 14 that connects one side of the first pipe part 12 and the other side of the second pipe part 13. The portion 13 is provided with a connecting pipe member 16 that is rotatable in a horizontal plane about a vertical rotation axis 15 of a rotational connecting means 14. In this embodiment, as the rotational connection means 14, a U-shaped connection holding part 17 is attached to one side of the first pipe part 12 when viewed from the front, and the connection holding part 17 connects the second pipe part 13. While holding the other side from above and below, a bolt serving as the vertical rotation axis 15 was passed through the connecting holding part 17 and the second pipe part 13, and a nut 18 was screwed thereon. Thereby, the first and second pipe parts 12 and 13 connected via the rotational connection means 14 can be rotated in a horizontal plane, and the first and second pipe parts 12 and 13 can be rotated in a horizontal plane. The distance between the connected struts 11 as well as the angle to be formed can be selected from a wide range. In addition, the connection holding part may be attached to the other side of the second pipe part, or a pin (bar material) may be passed through it instead of a bolt as a vertical rotation axis, and the top and bottom of it may be fixed to the connection holding part. Good too.

Further, at the other end of the first pipe section 12 and at one end of the second pipe section 13, a locking section 20 (FIG. 4 (See (A) and (B))) are each attached with a vertical wedge member 21 that can be inserted and removed. Each vertical wedge member 21 is integrally formed with an end surface portion 22 that contacts the outer peripheral surface of each support column 11 and a peripheral edge portion 23 that stands up from the periphery of the end surface portion 22. Here, as shown in FIGS. 2(A), (B), 4(B), and 5, the end surface portion 22 is formed with an arcuate curved surface 24 that matches the outer diameter of the support column 11. This allows the support 11 and the vertical wedge member 21 (end surface portion 22) to be brought into close contact with each other, thereby increasing the fixing stability of the support support connector 10. Moreover, a pipe mounting part 25 is formed on the upper part of the vertical wedge member 21 to be mounted and fixed to the other end of the first pipe part 12 and one end of the second pipe part 13, respectively. Each pipe attachment part 25 is a part of each vertical wedge member 21, and is formed in the upper part of each vertical wedge member 21 into a substantially cylindrical shape by the peripheral edge part 23, and is connected to the other end of the first pipe part 12 and They are each inserted (fitted) into one end of the second pipe section 13, and the outer periphery is welded and fixed at a welding section 26.

Further, as shown in FIGS. 1, 2(B), and 6, reinforcing portions 28 are provided at the bottom of the other end of the first pipe portion 12 and the bottom of one end of the second pipe portion 14, respectively. There is. This reinforcement part 28 is for reinforcing the wall thickness of the first and second pipe parts 12 and 13, and when the scaffold is disassembled, the bottom part of the other end of the first pipe part 12 and the second pipe part 13 are This prevents the first and second pipe parts 12 and 13 from deforming due to impact when the vertical wedge member 21 is removed from the locking part 20 of each support column 11 by hitting the bottom part of one end side with a hammer or the like. Note that the reinforcing part 28 is fixed to the first and second pipe parts 12 and 13 by a reinforcing welding part 29, but by continuously forming each welding part 26 and reinforcing welding part 29, each vertical By integrating the wedge material 21 (each pipe attachment part 25) and each reinforcing part 28, the fixing stability to the first and second pipe parts 12 and 13 can be improved.

It is preferable that the support column connector 10 is subjected to hot-dip galvanizing (dobu-zuke plating) treatment for rust prevention. In that case, the first and second pipe parts 12 and 13 are plated with the connection holding part 17 and the vertical wedge material 21 attached and then connected by the vertical rotation shaft 15, but the first pipe part If the other end of the pipe section 12 and one end of the second pipe section 13 are closed with the vertical wedge material 21 (pipe mounting section 25), the plating solution will accumulate inside the first and second pipe sections 12 and 13. It ends up. Therefore, in this embodiment, as shown in FIGS. 3A, 3B, and 6, each vertical wedge member 21 is provided with a through hole 30 that penetrates the end surface portion 22 at the position of each pipe attachment portion 25. Formed. This prevents the plating solution from accumulating inside the first and second pipe sections 12 and 13, allowing efficient and uniform plating processing. Note that the shape, size, arrangement, and number of the through holes can be selected as appropriate.

Distance L1 from the end face 22 of the vertical wedge member 21 attached to the other end side of the first pipe section 12 to the center of the vertical rotation axis 15, and the vertical wedge member attached to the one end side of the second pipe section 13 The distance L2 from the end surface 22 of the vertical wedge member 21 to the center of the vertical rotation shaft 15 can be selected as appropriate; The distance L2 to the center of the rotation shaft 15 is 1 to 15 times the distance L1 from the end surface part 22 of the vertical wedge member 21 attached to the other end side of the first pipe part 12 to the center of the vertical rotation shaft 15. Those within the range of (see FIG. 1) are preferably used. By selecting and combining strut connectors with different dimensions (distances L1, L2), in addition to the angle formed by the first pipe section and the second pipe section, the distance and arrangement between the connected struts can be freely adjusted. It becomes possible to install scaffolding along the outer periphery of a complex-shaped building, not only circular but also partially having curved parts, uneven parts, etc.

Next, a strut connector 32 according to a second embodiment of the present invention shown in FIG. 7 will be described. Note that the same configurations as those in the first embodiment are given the same reference numerals and the description thereof will be omitted.
The difference between the strut connector 32 and the strut connector 10 is that, as shown in FIG. 1. The first and second pipe sections 38 and 39 are connected in series via the second rotational connection means 35 and 36. As a result, the first pipe section 38 and the intermediate pipe section 34 can rotate in a horizontal plane about the vertical rotation axis 40 of the first rotation coupling means 35, and the intermediate pipe section 34 and the second pipe section The portion 39 is rotatable in a horizontal plane about the vertical rotation axis 41 of the second rotation coupling means 36 .

In this embodiment, as the first rotary connection means 35, a U-shaped connection holding part 43 is attached to one side of the first pipe part 38 when viewed from the front, and the connection holding part 43 connects the intermediate pipe part. The other side of 34 was held between the upper and lower sides, and a bolt serving as a vertical rotation shaft 40 was passed through the connecting holding part 43 and the intermediate pipe part 34, and a nut 44 was screwed thereon. Further, as the second rotational connection means 36, a U-shaped connection holding part 45 is attached to the other side of the second pipe part 39 when viewed from the front, and the connection holding part 45 is connected to one side of the intermediate pipe part 34. were clamped from above and below, a bolt serving as the vertical rotation shaft 41 was passed through the connecting holding part 45 and the intermediate pipe part 34, and a nut 46 was screwed thereon. As described above, the first and second pipe sections 38 and 39 connected to the intermediate pipe section 34 via the first and second rotation connecting means 35 and 36 can be rotated in a horizontal plane, and the support Similar to the connector 10, the angle formed by the first pipe section 38 and the second pipe section 39 as well as the distance between the columns to be connected can be selected from a wide range. In particular, by rotating the first and second pipe parts 38 and 39 with respect to the intermediate pipe part 34, it is possible to efficiently install a scaffold to accommodate buildings with more complex shapes. In addition, each connection holding part may be attached to both sides (the other side and one side) of the intermediate pipe part, or the upper and lower parts may be connected by passing a pin (bar) instead of a bolt as a vertical rotation axis. It may be fixed to the holding part.

Distance L3 from the vertical rotation axis 40 of the first rotation connection means 35 to the vertical rotation axis 41 of the second rotation connection means 36, a vertical wedge member attached to the other end side of the first pipe section 38 The distance L4 from the end surface 22 of the vertical wedge member 21 to the vertical rotation axis 40 of the first rotation coupling means 35 and the distance L4 from the end surface 22 of the vertical wedge member 21 attached to one end side of the second pipe section 39. The distance L5 to the center of the vertical rotation axis 41 of the dynamic coupling means 36 can be selected as appropriate. However, the distance L3 from the vertical rotation axis 40 of the first rotation connection means 35 to the vertical rotation axis 41 of the second rotation connection means 36 is such that The vertical wedge member 21 is in a range of 1 to 15 times the distance L4 from the end surface 22 of the vertical wedge member 21 to the vertical rotation axis 40 of the first rotation coupling means 35, and is attached to one end side of the second pipe portion 39. A wedge having a distance L5 from the end surface 22 of the wedge member 21 to the center of the vertical rotation shaft 41 of the second rotation coupling means 36 is preferably used. By selecting and combining strut connectors with different dimensions (distances L3, L4, L5), in addition to the angle formed by the first pipe section and the second pipe section, the distance and arrangement between the connected struts can be adjusted. further improves flexibility and offers excellent versatility. Note that the distances L4 and L5 may be equal or different.

Although the embodiments of the present invention have been described above, the present invention is not limited to the configurations described in the embodiments described above, and can be considered within the scope of the matters described in the claims. It also includes other embodiments and modifications.

10: Strut connector, 11: Strut, 12: First pipe section, 13: Second pipe section, 14: Rotation connection means, 15: Vertical rotation axis, 16: Connection pipe material, 17: Connection holding part, 18: nut, 20: locking part, 21: vertical wedge member, 22: end face part, 23: peripheral part, 24: curved surface, 25: pipe attachment part, 26: welding part, 28: reinforcing part, 29 : Reinforcement welded part, 30: Through hole, 32: Support column connector, 33: Connecting pipe material, 34: Intermediate pipe section, 35: First rotational connection means, 36: Second rotational connection means, 38: First pipe part, 39: Second pipe part, 40, 41: Vertical rotation axis, 43: Connection holding part, 44: Nut, 45: Connection holding part, 46: Nut

Claims (4)

A pillar connector that horizontally connects adjacent pillars of an assembled scaffold,
The first pipe part has first and second pipe parts arranged in series, and a rotational connecting means for connecting one side of the first pipe part and the other side of the second pipe part, The pipe portion and the second pipe portion include a connecting pipe material that is rotatable in a horizontal plane about the vertical rotation axis of the rotation connecting means,
The other end of the first pipe part and one end of the second pipe part are removably attached to locking parts that are provided on the sides of the adjacent pillars and have a U-shape in plan view. Vertical wedges are attached to each
Each of the vertical wedge members is integrally formed with an end surface that comes into contact with the outer circumferential surface of each of the pillars and a peripheral edge that stands up from the periphery of the end surface. having a pipe attachment part that is attached and fixed to one end of the second pipe part, respectively;
Each of the pipe attachment parts is welded to the other end of the first pipe part and one end of the second pipe part at a welding part, respectively, and the bottom part of the other end of the first pipe part and the second pipe part are welded to each other. A strut connector characterized in that a reinforcing part fixed by a reinforcing weld is provided at the bottom of one end of the part, and each of the welding parts and the reinforcing weld are formed continuously. 2. The strut connector according to claim 1, wherein a distance L2 from the end surface of the vertical wedge member attached to one end side of the second pipe section to the center of the vertical rotation axis of the rotation coupling means is The distance is within a range of 1 to 15 times the distance L1 from the end surface of the vertical wedge member attached to the other end side of the first pipe section to the center of the vertical rotation axis of the rotation coupling means. Support column connector. 2. The support column connector according to claim 1, wherein the rotational connection means includes a connection holding part attached to one side of the first pipe part and holding the other side of the second pipe part from above and below; A strut connector comprising: a bolt that passes through the holding portion and the second pipe portion and serves as the vertical rotation axis; and a nut that is screwed onto the bolt. The column connector according to any one of claims 1 to 3 , wherein each of the vertical wedge members has a through hole that penetrates the end face portion at the position of each of the pipe attachment portions.

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