JPH07310318A - Anchor - Google Patents

Abstract

PURPOSE:To reduce the driving resistance on driving an anchor and stably and securely support a structure with the simplified anchor constitution. CONSTITUTION:This is composed of a resistance plate 1 in which a plurality of swollen reinforced members 1a, 1b, 1c are formed to shape vertical lines with distances 1g, 5g, a L-shaped resistance plate 2, a flexible wire 4. The L-shaped resistance plate 2 is fixed at the front end of the resistance plate 1 and the front end 4a of the flexible wire 4 is fastened on the forward reinforcing member la of the resistance plate 1 and the wire 4 is hooked on the upper end 3a of the support member 3 formed so as to protrude upward from the rearward reinforcing member lb of the resistance plate 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor for underground burial, which is used for supporting poles such as electric poles and antennas, as well as fences and trees for planting. It also has a structure that improves the workability during placement.

[0002]

2. Description of the Related Art There are various conventionally known anchors that deploy a plurality of resistance plates and a single resistance plate that has a complicated structure. These anchors support a supported object. It has been proposed in consideration of strength and cost.

Of the above-mentioned conventional anchors, the one based on a single resistance plate is, for example, an anchor (c) shown in FIG. 7, which is a reinforcing member (5a) (5b).
(5c) (5d) resistance plate (5) formed in a longitudinal line and front and rear reinforcing members (5a) in the reinforcing member
Upper bar (7) and reinforcing bar (8) connected to (5b)
A closing plate (6) fixed to the front reinforcing member (5a), and a driving tool receiver (9) fixed to the rear end of the resistance plate (5).

In order to drive this anchor (c) into the ground, after inserting the driving pipe (D) into the driving tool receiver (9) fixed to the rear end of the resistance plate (5), the driving is carried out. Driving rod (E) in pipe (D) and through small hole (D3)
Insert.

At this time, the small diameter rod portion (E) of the driving rod (E)
The tip end surface (E3) of 1) abuts the closing plate (6) formed on the front side reinforcing member (5a) of the resistance plate (5), but the stepped portion (D1) formed in the driving pipe and the driving A constant gap is held between the lower end surfaces (E5) of the large diameter rod portion (E2) of the rod.

Next, when the driving rod (E) is moved up and down in the driving pipe, this kinetic energy is transmitted to the closing plate (6) and the anchor (c) enters the ground to reach a predetermined depth. The anchor (C) thus driven only exhibits a vertical state in the ground and cannot obtain a large earth pressure resistance (see Fig. (A)).

Therefore, when the driving pipe (D) is left in the ground and the driving rod (E) is inverted and the large diameter rod portion (E2) is inserted into the driving pipe (D), its upper end surface ( When E4) contacts the step portion (D1) of the driving pipe (D) and moves the driving rod (E) up and down, this kinetic energy is generated through the lower end surface (D2) of the driving pipe (D) to the resistance plate. (5) is transmitted to the rear end of the resistance plate (5)
All the reinforcing members (5a) (5b) (5c) (5d) are always held in the longitudinal filaments, and there is no small diameter rod portion (E1), so that there is no bending and the resistance plate (5) Due to the existence of the resistance surface due to the closing plate (6) formed on the front side reinforcing member (5a), the impact energy of the driving rod (E) firstly forms the gap (5g) formed between the reinforcing members of the resistance plate (5). Just trying to bend the tip of the resistance plate (1) (Fig. (B))
reference).

By the further driving action of the driving rod (E), the resistance plate (1) bends one after another through the space (5g) between the other reinforcing members (5b), (5c) and (5d) to present a developed state. However, the upper pulling rod (7) and the auxiliary rod (8) fixed to the front side and the rear side of the resistance plate (5) enter the ground and are fixed above the upper pulling bar (7). United ring (10)
Then, the auxiliary rod (8) is guided and moved so that both rods (7) and (8) are bound (see FIG. (C)).

The resistance plate (5) in the expanded state as described above
With the upper pulling rod (7) and the auxiliary rod (8), the expanded state is maintained when the upper pulling rod (7) is pulled and a strong earth pressure resistance can be obtained.

[0010]

In the conventional anchor as described above, the pulling rod and the auxiliary rod are provided on the front side and the rear side of the resistance plate.
Since both rods that are rigid enter the ground while cutting the soil, the cutting resistance that inevitably occurs will be a major obstacle to improving workability, and after completion of driving the anchor, it will be auxiliary with the pulling bar. Since it is necessary to bind the rod and the rod at their upper ends, a binding tool is provided, which complicates the overall structure of the anchor and raises the cost.

The present invention provides an anchor structure which solves the problems of conventional anchors by substituting one bendable branch line for both the upper bar and auxiliary rod members of the conventional anchor. Is.

[0012]

In order to solve the above problems, a plurality of bulging reinforcing members (1a) (1b) (1c)
A resistance plate (1) formed in a longitudinal line, an L-shaped resistance part piece (2), and a flexible branch line (4), and the L-shaped resistance part piece is provided at the tip of the resistance plate (1). (2) is fixed,
The front end (4a) of the branch line (4) is connected to the front reinforcing member (1a) of the resistance plate (1) and the resistance plate (1) is connected.
In the anchor structure, the branch line (4) is hung over the upper end (3a) of the fulcrum member (3) formed so as to project above the rear side reinforcing member (1b).

[0013]

[Operation] An anchor (a) having the above structure
Is a bendable branch line (4) when it is driven vertically by a driving tool (b) to a predetermined depth.
Since it has only one, the resistance to the entry of the anchor (a) is extremely reduced, and the driving force is also reduced when deploying and driving the anchor (a) in the ground.
After the anchor (a) is deployed and installed, it is pulled up by the branch line (4), but the front and rear sides of the resistance plate (1) in the anchor (a) are supported by the branch line (4) and the fulcrum member (3). In addition, since the branch line (4) is hung over the fulcrum member (3) and pulled up, even if the single branch line (4) is used, the total earth pressure resistance force obtained by the resistance plate (1) is supported. Stable and reliable transmission to.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 shows an anchor (a), FIG. 1 (a) is a plan view, FIG. 1 (b) is a side view, and FIG. 1 (c) shows a state from the AA direction in FIG. The illustrated anchor includes a resistance plate (1), an L-shaped resistance piece (2) formed on the front side of the resistance plate (1), and a branch line whose end is connected to the front side of the resistance plate (1). (4) and a fulcrum member (3) formed behind the resistance plate (1).

The resistance plate (1) is provided with curved reinforcing members (1a) (1b) divided on one side surface thereof.
These reinforcing members (1a) and (1b) are formed in a line along the longitudinal strips of the resistance plate (1), and are formed with an appropriate space (1g) between them. It can be understood from this structure that the resistance plate (1) can be easily bent through the gap (1g).

Incidentally, in order to make the bending operation of the resistance plate (1) easier, an appropriate lateral hole (1h) is formed, but this lateral hole (1h) may be formed if necessary. well,
In addition, the space (1) formed between the reinforcing members (1a) and (1b)
The shape of g) may be parallel or may be formed by an inclined surface.

Further, the front reinforcing member (1a) of the resistance plate (1) has a notch (1) formed at its tip.
f) A side (2b) having an opening (2c) into which a branch line (4) can be inserted is fitted and fixed to hold an L-shaped resistance piece (2), and the resistance plate is attached to the side (2b). A striking force is imparted when the (1) goes straight into the ground, and the other side (2a) prevents the sand and sand from entering the curved reinforcing members (1a) and (1b) and the anchor (a). ) Plays the role of obtaining the necessary resistance to develop.

On the other hand, a fulcrum member (3), which is U-shaped on the upper surface of the rear side reinforcing member (1b) and has a screw (3a) fixed to its open end, is fixed by a fixing means such as welding. The branch line (4) is guided through the groove formed by the U-shape of the fulcrum member (3), and the screw (3a) keeps the resistance plate (1) bent by the branch line (4). When it is pulled up, it functions as a fulcrum.

At the tip of the branch line (4), a retaining metal (4
d) is tightened and fixed, and the branch line (4) passing through the perforation (1e) formed at the tip of the front reinforcing member (1a) is retained and locked under the perforation (1e). The other end of the branch line (4) is provided with a fastener (4b) forming a coupling part (4c) for connecting to another support.

Another example of the anchor is shown in FIG. 6, where FIG. 6 (a) is a side view and a resistance plate having three reinforcing members (1a) (1b) (1c) formed therein. (1)
Although the number of reinforcing members is increased as compared with that shown in FIG. 1, this is suitable when a larger earth pressure resistance is required or when a smooth bending action is desired. Another figure (b) shows a state in which the anchor has been deployed and installed.

To drive the anchor of the present invention having the above-mentioned structure into the ground, for example, a driving tool as shown in FIG. 2 is used. This driving tool (b) is composed of a driving pipe and a driving rod (C). The driving pipe has a stepped portion (A2) at the inner lower end and a small hole (A4) formed at this stepped portion (A2). Pipe with thick upper end (A)
And a core (B) having a large diameter head (B1) at the upper end and an engagement groove (B3) formed at the lower end surface, while the driving rod (C) is a middle part. Long and short bars (C2) (C) above and below the large diameter part (C1)
3) is configured.

A driving tool (b) constructed as described above
The core metal (B) has its head (B
1) After being inserted through the step (A2) in the pipe (A) by the step (B2) formed at the lower end, the driving rod (C) is inserted into the pipe (A). When the long rod portion (C3) of the rod (C) is inserted, the large diameter of the upper end surface (A1) of the pipe (A) and the driving rod (C) having a diameter larger than this upper end surface (A1). The head (B1) of the inserted core metal (B) is always separated from the portion (C1).
The upper end surface and the lower end surface of the long rod portion (C3) of the driving rod (C) are always in contact with each other, and the driving rod (C) is reversed to connect the short rod portion (C2) to the pipe ( When inserted into A), the upper end surface (A1) of the pipe (A) and the large diameter portion (C1) of the driving rod (C) always come into contact with each other, while the inserted core metal (B) The upper end surface of the head portion (B1) and the lower end surface of the short rod portion (C2) of the driving rod (C) are in a positional relationship such that they are always separated by a predetermined distance.

Further, the marking portion (A5) formed on the upper portion of the pipe (A) is the relative movement amount between the end of the branch line (4) and the driving pipe which are generated when the resistance plate (1) is developed in the ground. You can measure the degree of expansion of the anchor (a) in the ground.

When the anchor (A) is driven into the ground by using such a driving tool (b) (see FIGS. 3, 4 and 5), first, the core metal is attached to the pipe (A). (B) is inserted, and an L-shaped resistance piece (2) formed at the front end of the front reinforcing member (1a) of the resistance plate (1) in the engaging groove (B3) formed at the lower end of the core metal (B). Fit one side (2b) in
The anchor (a) and the driving tool (b) are integrally erected so that the cored bar extends along the curved shape of the reinforcing members (1a) and (1b).

Next, while maintaining such an upright state, the long rod portion (C) of the driving tool (C) is inserted into the pipe (A).
3) is inserted and the driving operation by the up / down movement of the driving tool (C) is started.

FIG. 3 (a) is a state diagram in which the anchor is vertically driven to a predetermined depth, and the kinetic energy of the driving rod (C) is such that only the tip of the long rod (C3) has a core metal ( B)
The head (B1) of the
1) via the step (B2), the step (A) of the pipe (A)
2) and is transmitted to one side (2b) of the L-shaped resistance piece (2) through the lower end of the core metal (B), so that the anchor (a) and the driving pipe (A) both enter the ground. However, the locking portion (4c) formed at the rear end of the branch line (4) and the pipe (A)
Relative movement with the marking portion (A5) formed in the above does not occur.

Since the resistance plate (1) thus driven to a predetermined depth is in the vertical state and no particular earth pressure resistance can be obtained, the resistance plate (1) is expanded to obtain a large earth pressure resistance. I need it.

FIG. 3 (b) shows an initial state in which the resistance plate (1) driven into a predetermined position in the ground is unfolded.
Here, the driving rod (C) is once taken out, inverted, the short rod portion (C2) is inserted into the pipe (A), and the driving work is performed again.

Only the large diameter portion (C1) of the driving rod (C) hits the upper end of the pipe (A) and the lower end (A) of the pipe (A).
3), upper and lower kinetic energy of the driving rod (C) is transmitted to the rear end of the resistance plate (1), while the lower end of the short rod portion (C2) of the driving rod (C) is at the core bar (B). ) Head (B
1) The kinetic energy is not applied to the core metal (B) because it is separated from the upper surface by a predetermined length, and the core metal (B) itself is transferred to the pipe (A) by the driving rod (C). Since the reaction force is received by the striking force, the engagement groove (B3) formed at the lower end of the cored bar (B) and the one side (2b) of the L-shaped resistance portion piece (2) move in the direction of disengagement. is there.

When a striking force is applied by the driving rod (C) one after another, the front side reinforcing member (1a) freed from the engaging groove (B3) of the core metal (B) is L-shaped resistance piece. Since the resistance plate (1) starts to bend and the anchor (a) starts to deploy from the interval (1g) which is a bending point because it receives a biased resistance on one side (2a) of (2), the diagram of FIG. (A) shows such a state, and the locking portion (4c) of the branch line (4) with respect to the marking portion (A5) of the pipe (A) is relatively moved.

When the resistance plate (1) is further driven in, the resistance plate (1) becomes a front side reinforcing member (1a) and a rear side reinforcing member (1).
b) Bending until the space (1 g) between them disappears and the expansion of the entire anchor begins (see FIG. 4 (b)).

The final stage in which the deployment of the almost desired anchor is performed is shown in FIG. 4 (c), and at this time, the engaging portion of the branch line (4) with respect to the marking portion (A5) of the pipe (A). Naturally, the relative movement position of (4c) is a predetermined position.

In this driving operation, the kinetic energy consumed for pulling in the branch line (4) becomes extremely small, and if the lateral hole (1h) is formed in the bent portion of the resistance plate (1), the expansion can be performed more easily. It will be possible.

After the anchor (a) is installed in a developed state at a predetermined depth in the ground in this way, the driving tool (b) is pulled out and the anchoring portion (4c) of the branch line (4) holds the supported object. A coupling member is coupled to resist a predetermined upward pulling force (see FIG. 5), and earth pressure resistance generated in the resistance plate (1) is provided on the front side and the rear side of the resistance plate (1). The fulcrum (4) and the fulcrum member (3), and the fulcrum (4) is a fulcrum (3) formed at the tip of the fulcrum member (3).
Since it is pulled over after being hung on a), a sufficiently stable support can be achieved with only one branch line.

The above-mentioned branch line (4) is a linear body or a strip body which is highly flexible and has a large tensile strength, and in consideration of corrosion prevention in the ground, it may be formed by a covered wire, a coated wire or the like. Good.

The resistance plate (1) so far has a bent portion at one location, but it is necessary to make the resistance plate large in order to obtain a larger earth pressure resistance. When it becomes necessary to more easily perform the unfolding, the bent portions of the resistance plate may be formed at a plurality of locations. This has a shape as shown in FIG. 6, and FIG. )
A curved central reinforcing member (1c) is formed between the curved reinforcing member on the rear side (1b) and the central reinforcing member (1b).
c) is a side view of the resistance plate (1) with a gap (1g) before and after, and FIG. (b) is the resistance plate (1) shown in FIG.
Shows a state of being bent and developed at two bending portions in the ground.

[0037]

As described above, according to the anchor of the present invention, the manufacturing cost can be reduced by reducing the number of parts and simplifying the structure. Since the resistance force was also extremely reduced during the driving operation, and the degree of expansion of the anchors could be easily measured on the ground, the anchors could be installed reliably and the workability could be improved.

[Brief description of drawings]

FIG. 1 shows an overall structure of an anchor (a) of the present invention, which is a resistance plate (1) in which reinforcing members (1a) (1b) bulging in a curved shape are formed in a longitudinal line, L-shaped Resistor piece (2)
It is a figure which shows the connection relation of a fulcrum member (3) and a branch line (4), A figure (a) is a top view, a figure (b) is a side view, A figure (c) is a figure (a). It is the side view seen from the AA direction.

[Fig. 2] is a tool (b) for driving an anchor (b)
And shows the structures of a driving pipe and a driving rod (C) each consisting of a combination of a pipe (A) and a core metal (B).

FIG. 3 shows a correspondence relationship between an anchor (a) and a driving tool during a driving operation, and FIG. 3 (a) shows a state in which the anchor (a) is vertically driven to a predetermined depth in the ground.
Figure (b) shows a state in which the anchor (a) is deployed in the ground.

FIG. 4 shows a state in which the anchors (a) are sequentially deployed, FIG. 4 (a) shows a state in which the front side reinforcing member (1a) side has started to be deployed, and FIG. 4 (b) is a front side reinforcing member (1). 1a)
The rear reinforcement member (1b) is continuously deployed, and FIG. (C) shows that the anchor (b) has almost finished its deployment and the branch line (A5) of the pipe (A) has a branch line (A5). It is a state diagram in which the locking portion (4c) of 4) is relatively moved by a predetermined distance.

FIG. 5 shows a state in which an anchor (a) is installed in the ground and a branch line (4) is pulled up.

6 is different from the anchor (a) shown in FIG.
An anchor (a) in which three reinforcing members bulging in a curved shape are formed is shown, Fig. (A) is a side view, and Fig. (B) is a state diagram after completion of deployment.

FIG. 7 shows a combination of a conventional anchor (c) and a driving tool, FIG. 7 (a) is a state diagram when the anchor (c) is vertically driven to a predetermined depth, and FIG. The tip of the anchor (c) shows a state where the expansion starts, and FIG. (C) shows that the anchor (c) has completed the expansion and is supported via both the upper rod (7) and the auxiliary rod (8). Shows the state of being connected to the body.

[Explanation of symbols]

A, C ... Anchor B, D ... Driving tool 1, 5 ... Resistance plate 1a, 1b, 1c, 5a, 5b, 5c, 5d ... Reinforcing member 1e ... Perforation 1f ... Cutout 1g, 5g ... Interval 1 h ... Horizontal hole 2 ... Resistor piece 2a, 2b ... Both sides of the resistance piece 2c ... Open hole 3 ... Support member 3a ... U-shaped piece 3b ... Screw serving as a support point 4 ... Branch line 4a ... Tip of branch line (4) 4b ... tightening tool 4c ... locking portion formed at rear end of branch line 4d ... retaining tool provided at tip of branch line 6 ... closing plate 7 ... upper pulling rod 8 ... auxiliary rod 9 ... driving tool receiver 10 ... binding ring A ... driving pipe A1 ... upper end of pipe A2 ... step inside the pipe A3 ... lower end of pipe A4 ... small hole formed in step (A2) A5 ... indicator part B ... core metal B1 ... head B2 ... step part B3 ... Engaging groove C ... Driving rod C1 ... Large diameter portion C2 ... Short rod portion C3 ... Long rod portion D ... Strike Only pipe D1 ... Step inside the driving pipe D2 ... Lower end surface of the driving pipe D3 ... Small hole formed in step (D1) inside the driving pipe E ... Driving rod E1 ... Small diameter rod E2 ... Large diameter rod E3 ... Lower end face of small diameter rod E4 ... Upper end face of large diameter rod E5 ... Lower end face of large diameter rod

Claims (1)

[Claims] 1. A plurality of bulging reinforcing members (1a) (1b)
The reinforcing member comprises a resistance plate (1) formed in a longitudinal filament with an interval (1g) (5g) formed between (1c), an L-shaped resistance part piece (2) and a flexible branch line (4). The tip (4a) of the branch line is connected to the upper portion of the front side reinforcing member (1a) in the above, and one side (2b) of the L-shaped resistance part piece (2) is connected to the tip of the front side reinforcing member (1a). On the other hand, a fulcrum member (3) is formed on the rear side reinforcing member (1b) of the reinforcing member so as to project upward, and the supporting line (4) is formed.
An anchor characterized in that it is configured to be hooked on the upper end (3a) of the fulcrum member (3).