JPH0322424Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a pin for hanging a brace attached to a temporary scaffolding frame or the like.

[Conventional technology and problems]

A scaffolding frame 1 for constructing temporary scaffolding for various types of construction work is formed in the shape of a gate or a torii gate, as shown in Fig. By stopping the scaffolding frames 1 facing each other, the opposing scaffolding frames 1 become self-supporting, and scaffolding boards are constructed between adjacent scaffolding frames to form a temporary scaffolding.

Conventional brace pin 3 fixed to the scaffold frame 1 above
As shown in FIG. 6, a shaft 6 that passes through the notch 4 is attached to a circular shaft-shaped pin body 5 whose tip is bifurcated with a notch 4 in the axial direction, and has a plate thickness that fits inside the notch 4. The retaining plate 7 is provided with a long hole 8 in the longitudinal direction that fits externally onto the shaft 6.
The structure is such that it can be rotated.
Both ends of the shaft 6 are caulked, and the pin body 5 and the retaining plate 7 are assembled in advance and fixed by welding to the scaffolding frame 1.

Incidentally, since the scaffolding frame 1 is finished with copper plating by dipping, the brace pins 3 are also plated at the same time.

As described above, when a pre-assembled brace pin is subjected to gutter plating, the plating adheres to the inside of the notch of the pin body, making it impossible to rotate the retaining plate.

For this reason, conventionally, the tip of the brace pin was burnt after soaking and plating to remove the plating inside the notch, which increased the number of processing steps, increased costs, and deteriorated the external finish shape of the brace pin. be.

This idea was made to solve the above-mentioned problems, and allows the pin body and retaining plate to be assembled after the pin body is attached to the scaffolding frame, thereby simplifying the plating removal work. The purpose is to provide a brace pin that can reduce processing costs.

[Means for solving problems]

In order to solve the above-mentioned problems, this invention has a pin body whose tip is formed into a bifurcated shape with an axial notch, and the shaft is horizontally suspended in the notch, and the pin body has a wall thickness that fits into the notch. The retaining plate is provided with a long hole in the longitudinal direction that fits externally onto the shaft, and a notch with a narrow inner end that reaches the long hole from the outer periphery and has an opening wider than the diameter of the shaft at the outer end. A retaining plate is attached to the pin body by press-fitting the notch into the shaft.

[Effect]

The pin body, with the shaft suspended horizontally in the notch at the tip, is welded and fixed to the scaffolding frame, and the scaffolding frame is plated. If necessary, use an appropriate tool to scrape off the unnecessary part of the plating stuck inside the notch of the pin body, then press fit the notch of the retaining plate inserted into the notch onto the shaft, so that the long hole fits into the shaft. By doing so, the retaining plate can be rotatably attached to the pin body.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 1 to 4 of the accompanying drawings.

As shown in the figure, the cylindrical pin main body 12 of the brace pin 11 has a forked tip with an axial notch 13, a shaft 14 is horizontally suspended inside the notch 13, and the inner end of the notch 13 becomes an inclined surface 15.

The retaining plate 16 has a plate thickness that fits into the notch 13, and is provided with a long hole 17 that fits into the shaft 14 along its longitudinal direction, and a notch 18 that reaches the long hole 17 from the outer periphery. , one end is the inclined surface 1
5. The inclined surface 19 corresponds to 5.

The retaining plate 16 can freely rotate about the shaft 14 and move in the longitudinal direction along the long hole 17 with respect to the pin body 12, and is horizontal as shown by the dashed line in FIGS. 1 and 3. state, long hole 1
One end of 7 is in contact with the shaft 14, the inclined surface 19 is in contact with the inclined surface 15 of the pin body 12, and the state of extending in the axial direction of the pin body 12 is maintained, so that the brace can be freely inserted into and removed from the pin body 12. Become.

Furthermore, when the retaining plate 16 is rotated to position the other end of the elongated hole 17 on the shaft 14, the retaining plate 16 becomes perpendicular to the pin body 12, as shown by the solid line in FIGS. 1 and 3. , to prevent the brace inserted into the pin body 12 from coming off.

The notch 18 formed in the front retaining plate 16 has an approximately V shape in which the outer peripheral opening of the retaining plate 16 is wider than the diameter of the shaft 14 and gradually becomes narrower toward the inner end.
When the notch 18 is forcibly expanded and passes through the shaft 14, the notch 18 is forcibly expanded and passed through, and when the elongated hole 17 is fitted onto the shaft 14, the restoring elasticity of the retaining plate 16 closes the notch. 18 returns to its original state, and a state in which it is prevented from coming off from the shaft 14 is obtained.

The formation position of the notch 18 on the retaining plate 16 is as shown in FIGS. 1 and 2.
It can be provided on the side surface of the main body, or it can be provided on one end as shown in FIGS. 3 and 4.

The brace pin of this invention has the above-mentioned configuration, and the pin body 12 is welded and fixed to the vertical column 2 of the scaffolding frame 1, and in this state, the scaffolding frame 1 is plated,
Next, after removing unnecessary plating adhering to the inside of the pin body 12, the retaining plate 16 may be driven into the shaft 14 and attached.

Note that the retaining plate 16 may be plated in advance to prevent rust, and may also be made of a material such as stainless steel.

〔effect〕

As described above, according to this invention, the notch of the retaining plate is press-fitted through the axis of the pin body, so that the retaining plate can be attached after the pin body is fixed to the scaffolding frame. Therefore, the occurrence of the locking plate not being able to rotate due to plating of the scaffolding frame is eliminated, the post-plating process can be greatly simplified, and processing costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing a first example of a brace pin according to the invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is a partially cutaway side view showing a second example of the same. FIG. 4 is an exploded perspective view of the same as above, FIG. 5 is a front view of the scaffold frame, and FIG. 6 is a partially cutaway side view showing a conventional brace pin. 11 is a brace pin, 12 is a pin body, 13 is a notch, 14 is a shaft, 16 is a retaining plate, 17 is a long hole, and 18 is a notch.

Claims (1)

[Scope of utility model registration request] A shaft is horizontally suspended in a notch of a pin body whose tip is formed into a bifurcated shape with an axial notch, and a long hole in the longitudinal direction is externally fitted onto the shaft in a retaining plate having a wall thickness that fits into the notch. and a narrow notch at the inner end that reaches the elongated hole from the outer periphery and opens at the outer end wider than the diameter of the shaft, and by press-fitting the notch of this retaining plate against the shaft, the pin can be inserted. A brace pin with a retaining plate attached to the main body.