JPH0246601Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to scaffolding for masonry work.

(Conventional technology) Conventionally, scaffolding logs and single pipes have been assembled and used as scaffolding during masonry work.

(Problems to be solved by the invention) In this case, it takes time to assemble and dismantle the scaffolding, and the position of the scaffolding must also be changed according to the work process. Furthermore, it takes up space and has the disadvantage of getting in the way when concrete is being poured or when a boxhoe is turning.

(Means for solving the problem) The present invention was proposed to solve the above problem, and the front end surface is formed into a sawtooth shape between the rear ends of the left and right horizontal pieces. The rear end of the locking piece is pivotally attached, and a stopper with a screw tube welded between the tips is inserted into a drain pipe buried in the masonry retaining wall, and the locking piece is Press horizontally from the outside of the drain pipe and rotate downward about the pivot joints to the rear ends of the pair of horizontal pieces, so that the serrated portions on the distal ends of the locking pieces are removed from the water. A tightening rod is screwed into the tip threaded portion of a screw rod that is engaged with the inner circumferential surface of the extraction pipe, and the rear end threaded portion is screwed into the screw tube, and the tightening rod is disposed along the retaining wall surface through the tightening rod. This relates to a scaffold for masonry work, which is characterized by being formed by fastening installed scaffolding pipes.

(Function) Since the present invention is constructed as described above,
Insert the stopper into the drainage pipe buried in the masonry retaining wall, and insert the locking piece pivoted between the rear ends of the left and right horizontal pieces of the stopper in a horizontal direction from the outside of the drainpipe. Press the locking piece to rotate it downward about the pivot point to the rear end of the pair of horizontal pieces, and insert the serrated portion formed on the tip of the locking piece into the drain pipe. The stopper is fixed to the pipe by engaging the circumferential surface.

Further, the rear end threaded portion of the screw rod is screwed into the screw tube welded between the tips of the pair of left and right horizontal pieces of the same fastening metal fitting, and a tightening rod is screwed onto the tip threaded portion of the screw rod. , it is possible to fasten the scaffolding pipes arranged along the retaining wall surface and use the scaffolding pipes to set up the scaffolding and the main line for preventing falls.

(Effect of the invention) As described above, according to the invention, by appropriately selecting the position of the drainage pipe where the stopper is to be fitted and fixed, the scaffolding or fall prevention The rope can be set, and the space occupied by the scaffold is smaller than that of conventional scaffolding.Furthermore, according to the present invention, a stopper is inserted into the drainage pipe, and the locking piece of the stopper is inserted into the drainage pipe. With a simple operation of rotating the locking piece by pressing horizontally from the outside, the serrated portion on the tip of the locking piece engages with the inner peripheral surface of the drain pipe. The stopper is fixed to the drain pipe, which greatly simplifies construction.

(Example) The present invention will be described below with reference to the illustrated embodiments.

A is a stopper, and a screw rod 3 is screwed onto a screw tube 2 welded to the end rods of a pair of left and right horizontal pieces 1, 1.
A locking piece 4 having a serrated tip 4a is pivotally attached to the rear end portions of both horizontal pieces 1,1.

Then, insert the stopper A into the drainage pipe 6 buried in the masonry retaining wall 5, and insert the push rod A into the pipe 6 from the outside as shown in FIG. 8 to horizontally hold the locking piece 4. When pressed in the direction, the locking piece 4 rotates downward as shown by the arrow around the pivot point to the pair of horizontal pieces 1, 1, and the serrated tip 4a of the locking piece 4 connects to the drain pipe. The stopper A is fixed to the drain pipe 6 by engaging with the inner circumferential surface of the drain pipe 6. Thereafter, the vertical and horizontal scaffolding pipes 8 and 9 attached to the masonry retaining wall 5 are fastened by the tightening rod 7 screwed onto the screw rod 3 connected to the fastener A.

Note that a formwork clamping hardware is used as the clamping rod 7.

When a work floor is provided outside the masonry retaining wall 5, brackets 10 are attached to the vertical scaffolding pipes 8, and the brackets 10 are connected laterally with connecting pipes 11, and scaffolding boards 12 are installed between the brackets 10.
At the same time as mounting the handrail 13. 14 is a connecting pipe for the handrail 13. (Figures 2 and 4
(See figure) When a fall prevention rope (main rope) is to be stretched, a clamp 15 is attached to the vertical scaffolding pipe 8, and a wire rope 16 is passed through this and both ends are fixed. As the height of the masonry retaining wall 5 increases, the clamp 15 is raised to adjust the height of the main rope. (Refer to Fig. 3) According to the illustrated embodiment, the scaffolding and the safety rope for fall prevention can be quickly set up according to the height of the masonry retaining wall 5. It occupies less space and does not get in the way when concrete is poured or when turning the backhoe.

[Brief explanation of the drawing]

Fig. 1 is a vertical side view showing the main parts of an embodiment of the scaffolding for masonry work according to the present invention, and Figs. 2 and 3 are longitudinal side views showing the installation state of the scaffold board and the fall prevention rope, respectively. , Figure 4 is a partially enlarged view of Figure 2, Figure 5
6 and 6 are a side view and a plan view of the stopper, respectively, FIG. 7 is a view taken from the direction of the arrow in FIG. 5, and FIG. 8 is a longitudinal side view showing the state in which the stopper is fixed to the drain pipe. . A... Stopping metal fitting, 3... Spiral rod, 5... Masonry retaining wall, 6... Drainage pipe, 7... Tightening rod, 8, 9...
...Scaffolding pipe.

Claims (1)

[Scope of utility model registration request] A rear end of a locking piece having a serrated tip surface is pivotally attached between the rear ends of the pair of left and right horizontal pieces,
A stopper with a screw cylinder welded between the tips is inserted into a drain pipe buried in the masonry retaining wall, and the locking piece is pressed horizontally from the outside of the drain pipe to The pair of horizontal pieces rotate downward around the pivot joints on the rear ends of the locking pieces, and the serrated portions of the distal ends of the locking pieces engage with the inner circumferential surface of the drain pipe, and A tightening rod is screwed onto the end threaded portion of a screw rod having a threaded end portion, and a scaffolding pipe disposed along the retaining wall surface is fastened via the tightening rod. Scaffolding for masonry construction.