Stanchion structure

Abstract

To provide a stanchion structure that suppresses or prevents concrete from adhering to the upper surface of a base plate and also makes it easy to remove the concrete after adhering.SOLUTION: A handrail support pipe 4 supporting a handrail member 3 is erected on a base plate 2, and a plurality of through holes 11 are formed in the base plate 2 of a stanchion 1 to be attached to a beam reinforcing bar assembly 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a stanchion structure that is attached to a beam reinforcing bar assembly assembled with beam main bars and stirrup bars. [Background technology]

[0002] The applicant has proposed a stanchion that is attached to a beam reinforcing bar assembly consisting of a plurality of main beam reinforcing bars and a plurality of frame-shaped stirrup reinforcing bars tied to the main beam reinforcing bars, and that includes a base plate placed on the plurality of stirrup reinforcing bars, a handrail support portion that supports a handrail member, a support pipe attached to the base plate, a fastening rod that has a hook portion at its lower end that engages with the main beam reinforcing bars and that passes through the base plate and is incorporated into the support pipe so as to be axially movable, and a nut that is threadedly connected to a male screw at the upper end of the fastening rod, and a handle that fastens the hook portion to the main beam reinforcing bars, and the handrail member is attached between the support pipes attached adjacent to each other on the beam reinforcing bar assembly (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-180507

[0004] The stanchions are attached to the beam reinforcing bar assemblies, and before and after the stanchions are attached, formwork is placed on both sides of the beam reinforcing bar assemblies, and concrete is poured into the formwork to form the concrete structure. The concrete and the beam reinforcing bar assemblies then form the main structure.

[0005] The stanchions are used for work such as pouring concrete and constructing a framework structure, and handrail members stretched between the stanchions ensure the safety of workers during the work.

[0006] However, when the concrete was poured, some of the concrete would often fly off and adhere to the top surface of the stanchion's base plate, which would hinder the reuse of the stanchion and other subsequent work.

[0007] Therefore, it was necessary to remove the concrete adhering to the top surface of the base plate during or after the work was completed. However, removing the concrete adhering to the base plate was extremely time-consuming after the concrete had hardened, and was also time-consuming even before the concrete had hardened. Summary of the Invention [Problem to be solved by the invention]

[0008] In view of the above circumstances, an object of the present invention is to suppress or prevent concrete from adhering to the upper surface of a base plate and to facilitate removal of the concrete after adhering. [Means for solving the problem]

[0009] The present invention, which solves the above problem, is a stanchion in which a handrail support tube that supports a handrail member is erected on a base plate and attached to a beam reinforcing bar assembly, and is characterized in that multiple through holes are formed in the base plate (Claim 1).

[0010] According to the present invention, some of the concrete scattered and attached to the base plate falls naturally through the pre-formed through-holes into the beam reinforcing bar assembly, thereby reducing the amount of concrete remaining on the base plate.

[0011] Furthermore, the presence of through-holes makes it easier to remove concrete adhering to the base plate than without them. Furthermore, the formation of the through-holes contributes to a reduction in the amount of material used for the base plate and a reduction in the weight of the entire stanchion. The through-holes may be polygonal or circular in shape.

[0012] One embodiment of the present invention is characterized in that a recess into which the handrail support tube fits is formed at an opposing position of the base plate (claim 2).

[0013] According to this embodiment, stanchions can be stacked. That is, a second stanchion can be placed on top of a first stanchion placed horizontally, in the opposite direction, and the handrail support tube of the second stanchion can be fitted into the recess formed in the first stanchion, allowing for stable stacking. Similarly, multiple stanchions can be stacked in succession. Therefore, the required number of stanchions can be stacked, and handling, such as transportation and tidying up after work, is easy. [Effects of the Invention]

[0014] According to the present invention, the amount of concrete adhering to the base plate can be reduced and the concrete adhering to the base plate can be easily removed.

[0015] Furthermore, according to one embodiment, the stanchions can be stacked, which provides the advantage of facilitating handling, such as transportation and tidying up after work is completed. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view of a stanchion structure of the present invention. [Figure 2] FIG. 2 is a plan view of the base plate of the present invention. [Figure 3] FIG. 2 is a layout diagram of a base plate according to the present invention. [Figure 4] FIG. 1 is a perspective view showing a stacked state of the stanchion structure of the present invention. [Figure 5] FIG. 2 is a perspective view showing a state in which the stanchion is in use. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the present invention will now be described with reference to the drawings.

[0018] FIG. 1 shows the stanchion structure of the present invention, and FIG. 5 shows its state of use.

[0019] As shown in FIG. 1, the stanchion 1 of the present invention has a handrail support tube 4 that supports a handrail member 3 erected on a base plate 2, and is attached to a beam reinforcing bar assembly 5 as shown in FIG.

[0020] 1, it consists of a fastening rod 7 that penetrates the base plate 2 and is incorporated into the handrail support tube 4 so as to be freely movable in the axial direction, and has a hook 6 at its lower end, and a nut 9 that is screwed onto a male thread 8 formed at the upper end of the fastening rod 7. In the figure, 10 is a rotation handle for the nut 9.

[0021] The stanchion 1 having the above-described configuration is erected on the beam reinforcing bar assembly 5. As shown in Fig. 5, the beam reinforcing bar assembly 5 is made up of beam main reinforcing bars 5a and a plurality of frame-shaped stirrup reinforcing bars 5b that are tied to the beam main reinforcing bars 5a.

[0022] The stanchion 1 of the above configuration is attached to the beam reinforcing bar assembly 5 by engaging the hook 6 provided at the lower end of the fastening rod 7 with the main beam reinforcement 5a that forms the beam reinforcing bar assembly 5, rotating the nut 9 with the rotating handle 10, and raising the fastening rod 7.

[0023] In the present invention, as shown in Figures 1 to 3, a plurality of through holes 11 are formed in the base plate 2. The number and shape of the formed through holes 11 are arbitrary. In the figures, 12 is a recess formed in an opposing position in the base plate 2, and is formed to a size that can receive the pipe portion of the handrail support pipe 4. Also in the figures, 13 is a guide mark that indicates the matching position of the beam main reinforcement 5a and the base plate 2, 14 is a square hole through which the lower end of the fastening rod 7 passes to prevent the fastening rod 7 from rotating together, and 15 is a reinforcing bracket.

[0024] With the stanchion 1 configured as described above, some of the concrete that has scattered or adhered to the base plate 2 falls naturally through the through holes 11 into the beam reinforcing bar assembly 5. Therefore, the amount of concrete remaining on the base plate 2 is reduced. Furthermore, because the through holes 11 are present, concrete that has adhered to the base plate 2 can be more easily removed using the through holes 11 than if there were no through holes.

[0025] Figure 4 shows the stacked state of the stanchions 1. The stanchions 1 have a base plate 2 protruding from one end all the way around, while the other end is rod-shaped and has few obstacles. Therefore, bundling a large number of them together would be extremely difficult as they would not be able to stay together.

[0026] However, according to one embodiment of the present invention, as shown in Figure 4, a second stanchion 1 is placed in the opposite direction above the first stanchion 1 placed horizontally, and the handrail support tube 4 of the second stanchion 1 is fitted into the recess 12 formed in the base plate 2 of the first stanchion 1, thereby enabling stable two-tier stacking. Thereafter, multiple tiers can be stacked in the same manner. This prevents the load from falling over and allows for compact organization. [Industrial Applicability]

[0027] According to the present invention, it is possible to suppress or prevent the adhesion of concrete to the upper surface of the base plate, and it is also possible to easily remove the concrete after it has adhered, thereby improving workability and making the present invention highly applicable in industry. [Explanation of symbols]

[0028] 1 stanchion 2 base plates 3 Handrail components 4 Handrail support pipe 5 Beam reinforcement assembly 11 Through hole 12 recess

Claims

1. A stanchion in which a handrail support tube that supports a handrail member is erected on a base plate and attached to a beam reinforcing bar assembly, characterized in that a plurality of through holes are formed in the base plate.

2. 2. The stanchion structure according to claim 1, wherein a recess is formed at an opposing position of the base plate, into which the handrail support tube fits.

Images