JP2954835B2 - How to install props - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a support on the ground.

[0002]

2. Description of the Related Art A support is used for installing a display board, a guide board, a sign, or the like that displays the names of trees, animals and plants. An anchor member is attached to the lower end of the support to prevent the support from falling out or falling down from the ground.

[0003] Conventionally, the column has an L-shaped bent lower end, and the anchor member is made of a concrete or plastic block provided with a through hole. The column is passed through a through hole of the block, and a bent portion at a lower end thereof extends horizontally below the block. The lower end of the column and the anchor member are disposed in a hole formed in the ground, and the hole is backfilled with earth and sand.

[0004]

However, since the anchor member made of the block requires a large volume, it is inconvenient to carry. In addition, digging a hole having a size and depth necessary for embedding the anchor member requires a great deal of labor and time, and therefore, the installation cost of the column is high.

[0005] It is an object of the present invention to reduce the labor and time required for installation of the columns. Another object of the present invention is to reduce the cost required for installing the support.

[0006]

The strut is formed by piercing a rod into the ground, swinging the upper end of the rod, and then pulling out the rod, and surrounding the strut and a shaft fixed to the lower end of the strut. Dropping the anchor member of a column assembly consisting of a shroud plate or an anchor member having at least one blade plate connected to the shaft into a cutout of the rod, and then driving the column assembly into the ground, It is installed by filling earth and sand into the trace of the rod and compacting the earth and sand. The rod can be pierced into the ground by driving. In addition, the shaft of the anchor member can be inserted into the lower end of the column made of a tubular member, or the lower end of the column can be inserted into the shaft made of a tubular member.

[0007]

According to the present invention, according to the present invention, a rod is pierced into the ground, the upper end of the rod is rocked, and then the rod is pulled out. Since the anchor member is placed in the ground by driving into the ground, it is not necessary to preliminarily dig a hole having a size and a depth necessary for placing the anchor member in the ground. Therefore, it is possible to reduce the labor and time required for excavating the hole, which is required in the related art, and thereby reduce the labor, time and cost required for installing the pillar. Further, since a machine for excavating the hole is not required, labor, time, and cost required for transportation, operation, and the like of the conventionally required excavating machine can be reduced. Sticking of a stick into the ground depends on the hardness of the ground,
It can be performed by pushing or driving.

The support and the anchor can be inserted by inserting the shaft of the anchor member into the lower end of the support made of a tubular member, or by inserting the lower end of the support into the shaft made of a tubular member. The members can be easily assembled with each other, and can be disassembled to improve the transportability.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 3, an anchor member buried in the ground in accordance with the method of installing a support according to the present invention is indicated by reference numeral 10 as a whole. The anchor member 10 includes a shaft 16 fixed to the lower end 14 of the column 12 and at least one slat 18 connected to the shaft 16.

The column 12 is made of a tube made of plastic, metal or the like. The column 12 can be a solid bar member instead of a hollow one.

The anchor member 10 is made of a metal material, preferably a plastic material, and the shaft 16 and the blade 18 are integrally formed. Instead of the illustrated example, the anchor member may be formed by connecting a shaft and a blade made of separate members to each other. The plastic anchor members are lightweight and convenient to transport and handle.

The shaft 16 of the anchor member comprises a tubular member. Alternatively, the shaft may be made of a solid member. Further, the shaft may have a polygonal cross-sectional shape such as a rectangle or a hexagon, instead of the illustrated example having a circular cross-sectional shape.

[0013] The shaft 16 of the anchor member has a tubular upper part 20.
And a lower part 22 coaxially connected to the upper part 20. The shaft may be a tube member having the same inner diameter and the same outer diameter over its entire length instead of the illustrated example.

The upper portion 20 of the shaft 16 is
With an outer diameter slightly smaller than the inner diameter of 4, the upper part 20 of the shaft of the anchor member can be inserted into the lower end 14 of the strut. Upper part 2 of shaft inserted in lower end part 14
0 is in close contact with the inner peripheral surface of the lower end. Thus, the shaft 16 of the anchor member is fixed to the lower end of the column 12. This fixing method is convenient for assembling the anchor member 10 and the strut 12 with each other, and is convenient for transporting and handling the anchor member 10 and the strut 12 in a disassembled state.

Contrary to the example shown in the figure, it is also possible to set the lower end portion 14 of the support column to be inserted into the shaft 16 as shown by the dashed line in FIG. Also in this case, the shaft 16 and the lower end portion 14 are in close contact with each other. The column 12 and the anchor member 10 fixed to the lower end of the column 12 are connected to a column assembly 36.
(FIG. 8).

The lower portion 22 of the shaft 16 has an upper end 24 having an outer diameter larger than the outer diameter of the upper portion 20 and a lower end 26 having an outer diameter smaller than the outer diameter of the upper portion 20. It has an elongated frustoconical outer surface. Lower 2
2 further has an inner peripheral surface intersecting the frusto-conical surface (see FIG. 3).

The upper end 24 of the lower portion of the shaft and the outer diameter of the upper portion 20 of the shaft have a dimensional difference substantially equal to the thickness of the column 12. For this reason, when inserting the upper part 20 of a shaft into the lower end part 14 of a support | pillar, the lower end part 14 of a support | pillar contacts the lower part 22 of a shaft, and the support | pillar 1
The outer peripheral surface of 2 is aligned with the upper end 24 of the lower part of the shaft.

The lower end 26 of the lower portion 22 of the shaft is
Since the inner peripheral surface of No. 2 intersects the truncated conical surface, it forms a sharp cutting edge. The sharp lower end 26 has a column assembly 36 formed by fixing the anchor member 10 to the lower end of the column 12.
The driving resistance at the time of driving into the underground described later is reduced.

In the example shown in the figure, two pairs of the blades 18 are provided, and the two pairs of the blades 18
At an angular interval of 180 degrees around 0, ie
It is arranged symmetrically with respect to a plane including the axis of the shaft 16.
Each pair of blades 18 extends upward from a substantially triangular support plate 28 which is on a plane orthogonal to the above-mentioned plane and is connected to the lower part 22 of the shaft, and faces each other in a V shape. Support plate 28
Has a gradually decreasing thickness from its upper end to its lower end.
Due to the gradual decrease in the wall thickness, the driving resistance at the time of driving the post assembly 36 into the ground is reduced.

The number, area, length, shape, direction (direction of elongation) and the like of the blades 18 can be arbitrarily set. However, in consideration of the operation of the blades 18 described later, preferably, the number of the blades 18 is large, the area thereof is large, and the blades 18 are set so as to extend obliquely upward as in the illustrated example. The blades 18 are arranged in the length direction of the shaft 16.
It can be provided at any location.

As shown in FIGS. 4 and 5, a plurality of blades 18 can be arranged around the shaft 16 at equal intervals.
In this example, two pairs of opposing blades 18
Extend upward from the lower portion 22 so as to form a V shape with each other.

When the anchor member 10 is buried in the ground, the blade 18 resists a pulling force, a horizontal force, a rotational force, and the like transmitted to the shaft 16 via the support 12.

Instead of providing the blade plate 18, the shaft 16
Around the shaft 16 surrounding all or part of the shaft 16, for example, defining a frustoconical surface extending from the lower end of the shaft 16 toward its upper end (not shown). it can. The enclosing plate can be provided with holes, slits, notches, and the like. When the anchor member having the shroud is buried in the ground, the shroud resists a pulling force, a horizontal force, a turning force, and the like transmitted to the shaft 16 via the column 12, and further includes the hole, Since the slits, cutouts, and the like are filled with earth and sand when the anchor member is buried, resistance to the pull-out force, horizontal force, rotational force, and the like of the enclosure plate increases.

The shroud plate may be annular or define a frusto-conical surface extending on the opposite side. The surrounding plate may have a polygonal shape such as a rectangle, in addition to an example in which the periphery is circular.

Next, a method of installing the column 12 using the anchor member 10 shown in FIGS. 1 to 3 will be described with reference to FIGS.

First, a rod 30 such as an iron pile is pierced into the ground by, for example, hitting its head with a hammer or mallet 32 (FIG. 6). When the ground is relatively soft, it can be pierced into the ground by pushing the rod 30 with both hands instead of the driving shown in the figure. The rod 30 is preferably a support 1
2 has a diameter that is approximately the same as the outer diameter. In the example shown, about 30
mm. The piercing depth of the rod 30 is determined according to the height of the column 12 and the degree of hardness of the ground. The piercing depth of the rod 30 is the arrangement depth of the anchor member 10.

Next, the upper portion of the rod 30 is swung, for example, left and right (FIG. 7). Thereafter, the stick 30 is pulled out. as a result,
A hole 34 having an oblong opening is formed in the ground. Stick 3
The swinging distance of 0 is set so that the length of the elliptical opening is equal to or greater than the length of the anchor member 10 in the lateral direction (length in the left-right direction in FIG. 2).

When the anchor member shown in FIGS. 4 and 5 is used, the wing plate 18 is arranged in a cross shape around the shaft 16 in a plan view. The upper part of the rod 30 is swung in each linear direction of the cross to form a hole having

When an anchor member having the above-mentioned shroud is used, the upper part of the rod 30 is swung so as to draw a circle. As a result, a hole having a conical mortar-shaped wall surface is formed.

Next, the anchor member 10 of the column assembly 36
Is dropped into a hole 34 which is a trace of the rod 30 (FIG. 8).
More specifically, two pairs of blade plates 18 of the anchor member 10 are dropped at both ends of the oval opening. Since the hole 34 is tapered downward, the anchor member 10 stops at the upper part of the hole 34.

When the anchor member shown in FIGS. 4 and 5 is used, a cruciform wing plate is dropped toward the cruciform opening. In the case where an anchor member having the enclosing plate is used, the enclosing plate is dropped into the mortar-shaped hole.

Thereafter, the column assembly 36 is connected to the column 12, for example.
Is hit with a mallet 32 into the ground. Thereby, the support plate 28 of the anchor member 10 and the two pairs of blade plates 18
While opening the tapered hole 34, the lower end of the shaft 16 is
4 until it reaches the bottom. Each blade 18 is a shaft 16
Therefore, the spreading resistance and the descent resistance of each blade with respect to the ground are small as compared with, for example, a case where the blades are set to extend horizontally or downward.

According to the anchor member shown in FIGS. 4 and 5, the cruciform blade plate 18 expands the hole, and according to the anchor member having the shroud plate, the shroud plate expands the hole. Descend while opening.

Next, earth and sand 38 are filled into the holes or holes 34 of the rod 30, and the filled earth and sand 38 is compacted by, for example, stepping on it. The blade 18 (or the above-mentioned shroud) in the compacted earth and sand 38 escapes from the ground of the shaft 16 connected thereto and the column 12 fixed to the shaft,
Acts as a resistance to tilt, rotation, etc. Therefore, the column 12 is maintained in a stable upright state. In particular, the slat 18 of the illustrated example, which is set to extend obliquely upward, strongly resists the column 12 coming out of the ground.

[Brief description of the drawings]

FIG. 1 is a perspective view of an anchor member.

FIG. 2 is a cross-sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a plan view of another example of an anchor member.

FIG. 5 is a longitudinal sectional view of the anchor member shown in FIG.

FIG. 6 is a schematic diagram showing a state where a rod is driven into the ground.

FIG. 7 is a schematic view showing a state in which a bar is rocking.

FIG. 8 is a schematic view showing a state in which a column assembly is driven into the ground.

FIG. 9 is a schematic diagram showing a state in which a column assembly is driven into the ground and filled with earth and sand.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Anchor member 12 Post 16 and 18 Shaft and slat of anchor member 30 Rod 34 Trace of rod removal 36 Prop assembly 38 Sediment

Claims (4)

(57) [Claims] 1. A rod is pierced into the ground, and an upper end of the rod is rocked. Then, the rod is pulled out, and a column, a shaft fixed to the lower end of the column, and a shaft around the shaft are provided. Dropping said anchor member of a column assembly consisting of a shroud plate or an anchor member having at least one wing plate into a hole of said rod, and then driving said column assembly into the ground; A method of installing a pillar, by filling earth and sand and compacting the earth and sand. 2. The method of claim 1, wherein the rod is pierced into the ground by driving. 3. The post comprises a tubular member, and an axis of the anchor member is insertable into a lower end of the post.
The method of claim 1. 4. A shaft of the anchor member is formed of a tubular member, and a lower end of the column is insertable into the shaft.
The method of claim 1.