Single pipe joint

Abstract

To provide a single-pipe joint that can improve work efficiency. [Solution] The single-pipe joint has a first end and a second end, and comprises a cylindrical member into which a flanged support column can be inserted at the first end, and a single clamp attached to the second end of the cylindrical member, with a through hole provided on the side surface of the cylindrical member for arranging a fastener to secure the flanged support column inserted at the first end.

Description

Technical Field

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[0001] The present disclosure relates to a single-pipe joint.

Background Art

[0002] Conventionally, a single-pipe joint for connecting single pipes on a scaffold has been proposed (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0009] [Figure 1] Side view of scaffolding structure according to embodiment [Figure 2] Front view of a single-pipe joint according to an embodiment. [Figure 3] Plan view showing the first end of the cylindrical member [Figure 4] Plan view showing the second end of the cylindrical member [Figure 5] Perspective view showing how to attach a single clamp to a cylindrical member. [Figure 6A] Front view showing how to connect the first pipe and the flanged support column using a pipe joint. [Figure 6B] Front view showing how to connect the first pipe and the flanged support column using a pipe joint. [Figure 7] Front view of a single-pipe clamp according to an embodiment. [Figure 8] Plan view showing the first end of the cylindrical member [Figure 9] Plan view showing the second end of the cylindrical member [Figure 10] Perspective view showing how to attach a single clamp to a cylindrical member. [Figure 11A] Front view showing how to connect a flanged support column and a second single pipe using a single pipe clamp. [Figure 11B] Front view showing how to connect a flanged support column and a second single pipe using a single pipe clamp. [Figure 11C] Front view showing how to connect a flanged support column and a second single pipe using a single pipe clamp. [Modes for carrying out the invention]

[0010] (Embodiment) The embodiments of the single-pipe joint and single-pipe clamp of this disclosure will be described below with reference to the attached drawings. However, the single-pipe joint and single-pipe clamp of this disclosure are not limited to the configuration and method described in the following embodiments.

[0011] FIG. 1 is a side view of a scaffolding structure 2 using a single-pipe joint 4 and a single-pipe clamp 6 according to an embodiment.

[0012] The scaffolding structure 2 constitutes a scaffolding at a work site such as a building, a bridge, or a highway.

[0013] The scaffolding structure 2 shown in FIG. 1 includes a single-pipe joint 4, a single-pipe clamp 6, a first single pipe 8, a second single pipe 10, a flange-equipped support column 12, and a chain 13.

[0014] [[ID=十二]]The single-pipe joint 4 is a member that connects the first single pipe 8 and the flange-equipped support column 12. The single-pipe clamp 6 is a member that connects the second single pipe 10 and the flange-equipped support column 12. By using the single-pipe joint 4 and the single-pipe clamp 6, a scaffolding can be constructed and extended by combining a single pipe and a flange-equipped support column.

[0015] In the example shown in FIG. 1, the first single pipe 8 and the second single pipe 10 extend in the vertical direction, and the flange-equipped support column 12 extends in the horizontal direction.

[0016] The flange-equipped support column 12 is a support column / single pipe having a plurality of flanges 14. The flange 14 has a plurality of holes into which wedges can be inserted. By hanging a scaffolding board with a hook (not shown) on the horizontally arranged flange-equipped support column 12, a scaffolding on which workers can work is constructed.

[0017] The chain 13 is a member that suspends the flange-equipped support column 12. The chain 13 shown in FIG. 1 connects the first single pipe 8 and the flange-equipped support column 12 so as to suspend the flange-equipped support column 12 from the first single pipe 8. A hook provided at the tip of the chain 13 is hooked on the flange 14 of the flange-equipped support column 12.

[0018] As shown in FIG. 1, a first fixture 16 is used for the single-pipe joint 4, and a second fixture 18 is used for the single-pipe clamp 6. The first fixture 16 is a lock pin, and the second fixture 18 is a bolt. The first fixture 16 is not limited to a lock pin and may be other types of fixtures.

[0019] (Single pipe joint) The single-pipe joint 4 will be explained using Figures 2 to 6B.

[0020] Figure 2 is a front view of the single-pipe joint 4.

[0021] The single-pipe joint 4 shown in Figure 2 comprises a cylindrical member 22 and a single clamp 24.

[0022] The cylindrical member 22 is a cylindrical member into which the flanged support column 12 shown in Figure 1 can be inserted. Multiple through holes 26A and 26B for inserting the first fixing device 16 are provided on the side surface of the cylindrical member 22. By providing multiple through holes 26A and 26B, it is possible to accommodate various types of flanged support columns 12.

[0023] In the example shown in Figure 2, two through holes 26A and 26B are provided in the cylindrical member 22, spaced apart in the axial direction X. The first through hole 26A, closer to the single clamp 24, has a larger diameter than the second through hole 26B, further away from the single clamp 24. Also, in the circumferential direction of the cylindrical member 22, the positions of the through holes 26A and 26B overlap.

[0024] The cylindrical member 22 has a first end 32 and a second end 34. A flanged support column 12 can be inserted into the first end 32, and a single clamp 24 is attached to the second end 34.

[0025] The single clamp 24 is a component capable of fixing the first single pipe 8 shown in Figure 1. The single clamp 24 is not limited to fixing round pipes, but may also be used to fix square pipes.

[0026] Figure 3 is a plan view showing the first end 32 of the cylindrical member 22, and Figure 4 is a plan view showing the second end 34.

[0027] As shown in Figure 3, the first end 32 is provided with a first opening 36 into which the flanged support column 12 can be inserted.

[0028] As shown in Figure 4, a second opening 38 is provided at the second end 34. A bolt (not shown) for attaching the single clamp 24 is inserted into the second opening 38.

[0029] As shown in Figure 5, when attaching a single clamp 24 (not shown) to the second end 34, a bolt 40 is inserted into the second opening 38 of the second end 34, and a nut 42 is inserted into the first opening 36 of the first end 32, and the nut 42 is engaged with the bolt 40 inside the cylindrical member 22.

[0030] By adjusting the engagement amount of the nut 42, the single clamp 24 can be attached to the cylindrical member 22 in a state where it can rotate around the axial direction X of the cylindrical member 22.

[0031] A method for connecting the first pipe 8 and the flanged support column 12 using the pipe joint 4 having the above configuration will be explained with reference to Figures 6A and 6B.

[0032] As shown in Figure 6A, prepare the single-pipe joint 4 and the flanged support column 12.

[0033] Although not shown in the diagram, the first pipe 8 (not shown) is gripped by the single clamp 24 of the single pipe joint 4. The flanged support column 12 is inserted into the single pipe joint 4 while it is gripping the first pipe 8.

[0034] The flanged support column 12 has a main body portion 44 and a tip connecting portion 46. The tip connecting portion 46 is the tip portion for connecting the flanged support column 12 to another member (for example, another flanged support column), and has a smaller diameter than the main body portion 44. The tip connecting portion 46 is provided with a through hole 48 into which the first fixing device 16 can be inserted.

[0035] By inserting the tip connector 46 into the first opening 36 of the first end 32, the state shown in Figure 6B is achieved.

[0036] As shown in Figure 6B, the first fastener 16 can be inserted when the through-hole 26B of the cylindrical member 22 and the through-hole 48 of the flanged support column 12 are aligned. By inserting the first fastener 16 into the through-holes 26B and 48, the flanged support column 12 is fixed to the single-pipe joint 4. In this way, the first single-pipe 8 and the flanged support column 12 are connected (Figure 1).

[0037] As mentioned above, since the cylindrical member 22 and the single clamp 24 are rotatable relative to each other, when the flanged support column 12 is inserted into the cylindrical member 22, the cylindrical member 22 can be rotated relative to the single clamp 24 to easily align the positions of the through hole 26B and the through hole 48.

[0038] The flanged support posts 12 have different specifications depending on the manufacturer, with variations in the length of the tip connection section 46 and the position and size of the through-holes 48. In this embodiment, the single-pipe joint 4 has two through-holes 26A and 26B spaced apart in the axial direction X. This allows for the use of different through-holes 26A and 26B, enabling the connection of various flanged support posts 12. The number, position, and size of the through-holes 26A and 26B may be changed as appropriate.

[0039] (Effect 1) As described above, the single-pipe joint 4 of this embodiment has a first end 32 and a second end 34, and comprises a cylindrical member 22 into which a flanged support column 12 can be inserted at the first end 32, and a single clamp 24 attached to the second end 34 of the cylindrical member 22, with through holes 26A and 26B provided on the side surface of the cylindrical member 22 for arranging a first fixing device 16 for fixing the flanged support column 12 inserted at the first end 32.

[0040] With this configuration, the flanged support column 12 and the single pipe 8 can be easily connected, improving work efficiency on the scaffolding.

[0041] Furthermore, in the single-pipe joint 4 of this embodiment, the through holes 26A and 26B have a first through hole 26A and a second through hole 26B that are spaced apart in the axial direction X of the cylindrical member 22. With this configuration, it is possible to accommodate different types of flanged support columns 12.

[0042] Furthermore, in the single-pipe joint 4 of this embodiment, the first through-hole 26A and the second through-hole 26B have different diameters. This configuration allows for compatibility with different types of flanged support columns 12.

[0043] Furthermore, in the single-pipe joint 4 of this embodiment, the circumferential positions of the cylindrical member 22 of the first through-hole 26A and the second through-hole 26B overlap. With this configuration, it becomes easier to grasp the orientation of the cylindrical member 22, and work efficiency can be improved.

[0044] Furthermore, in the single-pipe joint 4 of this embodiment, the second end 34 of the cylindrical member 22 is provided with a second opening 38 into which a bolt 40 for attaching the single clamp 24 is inserted. By engaging a nut 42 with the bolt 40 inserted into the second opening 38, the single clamp 24 is attached to the cylindrical member 22 in a rotatable state. With this configuration, the relative rotational position of the cylindrical member 22 and the single clamp 24 can be adjusted, thereby improving workability.

[0045] The single-pipe clamp 6 will be explained using Figures 7 to 11C.

[0046] Figure 7 is a front view of the single-pipe clamp 6.

[0047] The single-pipe clamp 6 shown in Figure 7 comprises a cylindrical member 50 and a single clamp 52.

[0048] The cylindrical member 50 is a cylindrical member into which the flanged support column 12 can be inserted. Bolt receiving portions 54A and 54B for attaching the second fastener 18 (bolt) are provided on the side surface of the cylindrical member 50.

[0049] In the example shown in Figure 7, two bolt receiving portions 54A and 54B are provided at positions opposite to each other. The lengths of the bolt receiving portions 54A and 54B are shorter than the length of the cylindrical member 50.

[0050] The cylindrical member 50 has a first end 56 and a second end 58. A flanged support column 12 can be inserted into the first end 56, and a single clamp 52 is attached to the second end 58.

[0051] The single clamp 52 is a component capable of fixing the second single pipe 10 shown in Figure 1. The single clamp 52 is not limited to fixing round pipes, but may also be used to fix square pipes.

[0052] Figure 8 is a plan view showing the first end 56 of the cylindrical member 50, and Figure 9 is a plan view showing the second end 58 of the cylindrical member 50.

[0053] As shown in Figure 8, the first end 56 is provided with a first opening 60 into which the flanged support column 12 can be inserted. The bolt receiving portions 54A and 54B are provided with openings 55A and 55B through which bolts can be inserted. The openings 55A and 55B are threaded so that bolts can be screwed in.

[0054] As shown in Figure 9, a second opening 62 is provided at the second end 58. A bolt (not shown) for attaching the single clamp 52 is inserted into the second opening 62.

[0055] The two bolt receiving portions 54A and 54B are provided on the cylindrical member 50 at a 180-degree interval in the circumferential direction.

[0056] As shown in Figure 10, when attaching a single clamp 52 (not shown) to the second end 58, a bolt 64 is inserted into the second opening 62 of the second end 58, and a nut 66 is inserted into the first opening 60 of the first end 56, and the nut 66 is engaged with the bolt 64 inside the cylindrical member 50.

[0057] By adjusting the engagement amount of the nut 66, the single clamp 52 can be attached to the cylindrical member 50 in a state where it can rotate around the axial direction X of the cylindrical member 50.

[0058] A method for connecting the flanged support column 12 and the second single pipe 10 using the single pipe clamp 6 having the above configuration will be explained with reference to Figures 11A to 11C.

[0059] As shown in Figure 11A, prepare the single-pipe clamp 6 and the flanged support column 12.

[0060] The flanged support column 12 has a tip portion 68, which is inserted into the cylindrical member 50 of the single-pipe clamp 6. The tip portion 68 is the end opposite to the tip connection portion 46 shown in Figure 6A, and has the same diameter as the main body portion 44. A flange 14 is provided near the tip portion 68.

[0061] By inserting the tip portion 68 into the first opening 60 of the first end portion 56, the state shown in Figure 11B is achieved.

[0062] As shown in Figure 11B, the flanged support column 12 is inserted into the cylindrical member 50, and the bolt receiving portions 54A, 54B and the flange 14 of the flanged support column 12 face each other. By aligning the positions of the through holes in the bolt receiving portions 54A, 54B and the flange 14, the second fasteners 18A, 18B can be inserted through the flange 14 and the bolt receiving portions 54A, 54B.

[0063] As shown in Figure 11C, the flanged support column 12 is fixed to the single-pipe clamp 6 by the second fasteners 18A and 18B. In this state, the second single pipe 10 is gripped by the single clamp 52, thereby connecting the second single pipe 10 and the flanged support column 12 (Figure 1).

[0064] The flanged support column 12 has different specifications depending on the manufacturer, and the shape and position of the flange 14 may differ slightly, but the single-pipe clamp 6 of this embodiment can accommodate flanged support columns 12 of various specifications.

[0065] The number, position, and size of the bolt receiving sections 54A and 54B may be changed as appropriate.

[0066] (Effect / Mechanism 2) As described above, the single-pipe clamp 6 of this embodiment has a first end 56 and a second end 58, and comprises a cylindrical member 50 into which a flanged support column 12 can be inserted at the first end 56, and a single clamp 52 attached to the second end 58 of the cylindrical member 50, and bolt receiving portions 54A and 54B are provided on the side surface of the cylindrical member 50 to receive the second fixing device 18 (bolt) inserted through the flange 14 of the flanged support column 12 inserted at the first end 56.

[0067] With this configuration, the flanged support column 12 and the first single pipe 8 can be easily connected, improving work efficiency on the scaffolding.

[0068] Furthermore, in the single-pipe clamp 6 of this embodiment, the bolt receiving portions 54A and 54B are provided with a first bolt receiving portion 54A and a second bolt receiving portion 54B spaced apart in the circumferential direction of the cylindrical member 50. With this configuration, the flanged support column 12 can be fixed more firmly.

[0069] Furthermore, in the single-pipe clamp 6 of this embodiment, the first bolt receiving portion 54A and the second bolt receiving portion 54B are provided with a 180-degree gap in the circumferential direction. With this configuration, the flanged support column 12 can be supported in a balanced manner.

[0070] Furthermore, in the single-pipe clamp 6 of this embodiment, the lengths of the bolt receiving portions 54A and 54B are shorter than the length of the cylindrical member 50. With this configuration, excess parts can be eliminated, and manufacturing costs can be reduced.

[0071] Furthermore, in the single-pipe clamp 6 of this embodiment, the second end 58 of the cylindrical member 50 is provided with a second opening 62 into which a second fixing device 18 (bolt) for attaching the single clamp 52 is inserted. By engaging a nut 66 with the bolt 64 inserted into the second opening 62, the single clamp 52 is attached to the cylindrical member 50 in a rotatable state. With this configuration, the relative rotational position of the cylindrical member 50 and the single clamp 52 can be adjusted, improving workability.

[0072] Although the present disclosure has been described above with reference to the embodiments described above, the present disclosure is not limited to the embodiments described above.

[0073] While this disclosure is adequately described in relation to preferred embodiments with reference to the accompanying drawings, various variations and modifications will be obvious to those skilled in the art. Such variations and modifications should be understood to be included within the scope of this disclosure as defined by the attached claims. Furthermore, variations in combinations and sequences of elements in each embodiment can be realized without departing from the scope and spirit of this disclosure. [Industrial applicability]

[0074] This disclosure is applicable to single-pipe joints and single-pipe clamps. [Explanation of Symbols]

[0075] 2. Scaffolding structure 4 Single pipe joint 6. Single-pipe clamp 8. First single pipe 10. Second single pipe 12 Flanged support posts 13 chains 14 Flange 16. First fixing device (locking pin) 18. Second fastening device (bolt)

Claims

1. A cylindrical member having a first end and a second end, into which a flanged support column can be inserted, The cylindrical member comprises a single clamp attached to the second end, A through hole is provided on the side surface of the cylindrical member for arranging a fastener for fixing the flanged support column inserted into the first end. The through-hole has a first through-hole and a second through-hole arranged at intervals in the axial direction of the cylindrical member, and the first and second through-holes have different diameters, forming a single-pipe joint.

2. The single-pipe joint according to claim 1, wherein the first through-hole and the second through-hole are located at circumferential positions of the cylindrical member and overlap with each other.

3. The second end of the cylindrical member is provided with an opening for inserting a bolt for attaching the single clamp. The single-pipe joint according to claim 1, wherein the single clamp is attached to the cylindrical member in a rotatable state by engaging a nut with the bolt inserted into the opening.

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