JPS6121278A - Split block stay anchor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Purpose of the Invention "Industrial Application Field" The present invention relates to the supporting capacity of the ground surface when the upper part of the utility pole and the diagonal ground surface are connected by a stay in order to prevent the utility pole from falling down. This invention relates to a split blockstay anchor that serves as a support that is buried underground to establish a structure.

``Prior Art'' Conventionally, this type of technology involves making a block hole (19) in the center of a rectangular planar concrete block (18) with a planned surface area as shown in Fig. 8)
It has a simple structure in which the washer (6) and the nut (20) are connected through the passage, and the surface area and wall thickness (compressive strength) differ depending on the required tensile strength. Since it is supported at one point, considerable wall thickness and strength are required. For example, in the case of a block anchor for tensile strength of 5 tons, which is the average value of several types of concrete block anchors on the market, the surface shape is 55 cm square and its wall thickness is The thickness and height are around 15 cm, and the weight is over 50 kg.

However, the most common use of this concrete block is overwhelmingly for utility pole branch lines, but its actual use is in urban areas where houses are densely packed, and in rural areas in all kinds of remote areas in the mountains. Since construction work is carried out by moving vigorously one after another in pursuit of the large number of telephone poles that stand in a forest, there are many cases where mechanical power cannot be used at all due to the various terrain.

In such cases, construction work has to be carried out by hand alone, and it is extremely inconvenient to handle objects with a volume of 55 cm square and a weight of 50 kg or more, and a large hole of about 2 m depth must be dug to remove the large dust. Since it is implanted, it is very dangerous, and there is a strong demand for improvement.

"Problems to be Solved by the Invention" In response to such a situation, the present invention divides the block into several pieces planned on the planar area to reduce the area, and increases the pressure resistance to compensate for the reduced tensile strength due to the reduction in area. In addition, each block has a top-pulling load point in the center of its plane, which allows it to be stacked on top of each other during packaging and transportation to reduce capacity and reduce weight. The idea was to connect them two-dimensionally, expand them to the intended area, and use the resultant force to achieve the goal.

Structure of the Invention [Means for Solving the Problem] The present invention provides a means for solving these problems by making the above-mentioned 55 cm square with a weight of 50 kg or more.
When targeting a tension-resistant Cublock anchor for n, first divide the surface area into four equal parts and make each 27.5 cm square, and also divide the pressure strength corresponding to the tensile strength of 5 tons into four equal parts with a strength of 1.25 tons. In addition, a -L pulling load fulcrum is provided in the center of the plane so that each block anchor can function as an independent block anchor.
(If the blocks are closely connected to the same flat surface), the central part of each block is converted into a pulling load point, and the situation turns out to be unexpectedly advantageous. In other words, if we were to create a compressive strength of 1.25 tons with a 5 cm square area and were to construct it with only concrete, it would have a considerable dead weight, but if we treated it with steel plates, Only 1.
A thin steel plate of about 5 mm is sufficient, and the weight can be reduced to about 1.5 J (g), but since the present invention is buried underground, 1. 5n
+ml board is at risk of being easily corroded, so
If this is made into a steel plate concrete block whose entire circumference is coated with the required amount of concrete for both strength maintenance and corrosion protection, the total wall thickness and height will be 3 cm, which is an amazingly thin wall and height, and its own weight will be 5 kg. This makes it possible to reduce the weight to a certain degree, making it very convenient and suitable for the modern trend of lightness, thinness, shortness, and smallness.

1 Effects and Examples" In order to embody the above means, the structure of the present invention is as follows. To describe this in detail, first, the first open plan view and the second side view according to the attached drawings are as follows. This explains the steel plate body (A) that is divided into four pieces and serves as the core material of the block, (II is a frame plate made of square plates with the four sides raised and bent by the required amount. , On the flat plate surface of this frame plate (1) on the rising and bent side, reinforcing plates (2) are bent at right angles so that the center portion overlaps with the required amount to create a cross hole (3). ) are tightly attached (tightened) to the four corners, and the four triangular flat plate surfaces constituted by the crisscrossed reinforcing plates are each fenestrated to the required amount. Then, the flat plate surface of the fenestration is bent to form a connecting window (4).

Next, with the side view in Figure 3 and the front view in Figure 4, this is an explanation of the assembly rod (5), which is planned to be expanded from the center using round steel from Keiyakujoku. After bending it so that it is open, each end is straightened to the required amount in a parallel state, a washer is fixed to this part, and a screw is screwed into each end. This is related to the lifting rod (8) that will be connected to two rods (5) in parallel in the future to carry upward loads, and the bent part of the group rod (5) will be placed in parallel. A coupling fitting (to which the coupling hole (10) is drilled through so that the coupling can be made by
The tip of the upper pulling rod (8) is passed through the upper side of 9), and this is bent along the U-shaped inner surface of the coupling fitting to be integrally fixed with the coupling fitting (9).

Next, the star view in Figure 6 and the side view in Figure 7 are for explaining the divided block (B), which is the same as the steel plate body (A).
) is covered with a concrete layer (11) that has sufficient pressure resistance and corrosion resistance, and one of the four corners is slightly diagonally cut out to form a notch (13). ) - Concrete layer (11) in the area corresponding to the cross hole (3)
) is opened as a concrete hole (12) through b.

The connecting window (4) is made up of a steel plate body ('A) and a concrete layer (
11) to make the integrated close contact state more effective.

The divided block (B
) should be installed at each notch (
13) are gathered in the center, arranged closely in a rectangular shape, and in order to maintain and establish this state, they must be connected using connectors (C) as shown in Figure 11. The connecting tool (C) is a rectangular connecting plate (15) located in the center, with a center hole (16) drilled in the center, as shown in the top view of Figure 18 and the side view of Figure 9. It is made by fixing connecting plates (14) that extend equally in each direction and have connecting plate holes (17) drilled at their tips.
The upper collecting rods (5) placed on the upper and lower sides of the divided blocks (B), which have been assembled closely together, are inserted into the concrete holes (12).
Pass through the connecting plate hole (17) that matches the hole, tighten the nut, and the split block (B), connector (C), and collecting rod (5) are integrally connected together with the washer (6). , and as shown in the side view of FIG. 12 and the open plan view of FIG. It is in a load-bearing position.

In the present invention, each divided block (n) is subjected to a tensile load of -1 at its center by the collecting rod (5), so that its tensile strength and pressure strength are slightly increased to 1.25 tons. Since the resultant force is 5 tons, it is extremely rational and literally light, thin, short, and small, making it an extremely convenient technology that cannot be compared with the conventional technology shown in FIG. 14.

In Mukobe-H, the present invention is described as achieving its purpose by combining four divided blocks (B) at once, but this is for the convenience of explanation and the number of H is not specified. Therefore, the technical scope is not limited to dividing into 4 parts, but dividing it into multiple parts of 2 or more, and of course the pronged rod (5) also corresponds to the plurality of quantities, and the connecting tool (C) is also shaped to correspond. It satisfies the purpose of use depending on the following.

[Effects of the Invention-1 The present invention provides various effects as described below.

1. Advantages in manufacturing The steel plate (A) that is the core material of the divided block (B) is lightweight and small, and the manufacturing process is extremely rational, and by covering it with a concrete layer (11), the finished weight is 5 kg. Because of this, the manufacturing process is very hands-off.

2. Concerning packaging and transportation, in the case where the product is 55 cm square and weighs 50 kg or more, which is a 5 ton tension resistant product of the conventional technology, the divided block (B) is 27.5 cm square and has a small wall thickness. 31, so if you stack 4 of these and pack them, the packaging will be 27.5cm square and the total wall thickness will be 1.
It is about 2 cm and weighs about 20 kg, which is less than 50% of the conventional technology, so it is overwhelmingly convenient.

3. Regarding handling and construction, this packaging is released on site and the 4 pieces are closely connected on a plane.This is done by connecting each other to the concrete hole (12) using the collecting rod (5) and connecting tool (C). It is extremely convenient just to tighten the hole (10) and screw it in (20), and the weight reduction of less than 50% compared to the conventional technology is a significant advantage in terms of safe operation. It becomes.

Based on the above, the present invention is sure to make a significant contribution to this industry. □

[Brief explanation of drawings]

FIG. 1 is a plan view of the steel plate body (A), and FIG. 2 is a side view of the steel plate body (A). FIG. 3 is a side view of the collecting rod (5), and FIG. 4 is a front view thereof. FIG. 5 is a perspective view of the one-pull bar (8), FIG. 6 is a plan view of divided block RO3), and text box 7 is a side view of divided block (B). FIG. 8 is a plan view of the connector (C), and figure 9 of the text box is a side view as well. Fig. 10 shows a state in which four divided blocks (B) are closely planarized around the notch (13), and Fig. 11 shows the state in Fig. 10 with a connector (C) and a gathering rod (5). FIG. 3 is a plan view showing a state in which the parts are integrated and connected. FIG. 12 is a side view of the state shown in FIG. 11, in which the respective grouping rods (5) are integrally connected with the coupling fittings (9) and are in a top-pulling load state by the top-pulling rod (8); FIG. 13 is a front view as well. FIG. 14 is an explanatory diagram related to the prior art.

Claims (1)

[Claims] Divide the planar area into two or more blocks to make them comparable to concrete blocks that have tensile strength and compressive strength depending on the planned planar area, and make divided blocks (B) with compressive strength. The steel plate body (A) is made of the minimum amount of steel material for maintenance purposes, and its entire circumference is covered with a concrete layer (11
) is reinforced to the necessary wall thickness and made to be smaller and lighter by anti-corrosion work, and the center of the plane is made to serve as a top-up load point, which allows for stacking when packing. It has a small volume and lightweight packaging, and during construction, the required quantity is connected and integrated using a connecting tool (C) and a gathering rod (5) so that the required surface area is achieved as planned at the site. Upper pull rod (8
) in a top-pulling load configuration, the split block stay anchor is characterized by being as light, thin, short, and compact as possible compared to conventional blocks with excessive volume and excessive weight.