JP3233819U - Plate type anchor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plate-type anchor device in which a load-bearing plate driven into the ground is hard to loosen, a stable anchor strength is secured, and a tension rope can be easily removed after achieving a purpose of use.
SOLUTION: A plate type anchor device 10 includes a load-bearing plate 20 having a sharp shape and a tension rope 30 which is foldable and moored to the load-bearing plate 20 so that the load-bearing plate 20 has an inverted triangular shape. A pair of blades 22 and 22 extending at both ends of the upper side of the intrusion portion were provided, and the folded portion of the tension rope 30 was moored to the load-bearing plate 20.
[Selection diagram] Fig. 1

Description

The present invention relates to a plate type anchor device capable of removing a tension rope after achieving the purpose of use.

Anchor pins are widely used for fixing wire mesh and lining mats to slopes, and fixing seats in tents and agricultural houses.
The conventional anchor pin is made of a steel rod, and the head of the steel rod is bent in a J-shape or an L-shape, and the tip thereof is sharply formed.
In order to improve the retaining property of the anchor pin, Patent Document 1 discloses that a plurality of tapered portions are continuously provided along the axial direction of the steel rod, and Patent Document 2 discloses that the tip portion of the steel rod has a vane shape. It is disclosed that a retaining material is attached, and Patent Document 3 discloses that the retaining material provided at the tip of a steel rod is formed of a wire rod.

JP-A-11-209975 Japanese Unexamined Patent Publication No. 2012-26144 Japanese Unexamined Patent Publication No. 2014-58781

The anchor pin of the prior art has the following problems.
<1> The anchor pins disclosed in Patent Documents 1 to 3 have a small pull-out resistance, so that the anchor pins are easily loosened. Further, since the entire anchor pin is subjected to rust preventive treatment such as plating, there is a problem that the manufacturing cost increases.
<2> The anchor pins disclosed in Patent Documents 1 to 3 are not premised on being pulled out.
Therefore, if the anchor pin is left in the ground when the purpose of use is completed, the anchor pin becomes an obstacle. Forcibly removing the anchor pin requires a large mechanical extraction force.

The present invention has been made in view of the above points, and an object of the present invention is to provide a plate type anchor device capable of solving the above problems.

The present invention is a plate-type anchor device, which includes a load-bearing plate having a sharp shape, a pulling cord that is retractably folded back and moored to the load-bearing plate, and an intrusion portion in which the load-bearing plate exhibits an inverted triangle. It is provided with a pair of blades extending at both ends of the upper side of the penetration portion, and a load bearing plate is moored at the folded portion of the tension rope.
In another embodiment of the present invention, a pair of blades constituting the load-bearing plate are expanded in a V shape.
In another embodiment of the present invention, the intrusion portion constituting the load-bearing plate and a pair of blades are integrally formed.
In another embodiment of the present invention, the load-bearing plate is made of steel plate.
In another embodiment of the present invention, a guide hole is provided in a part of the load-bearing plate, and a tension rope is inserted through the plurality of guide holes and moored.
In another embodiment of the present invention, the tension rope is a steel wire or steel rope material.

The present invention has at least one of the following effects.
<1> The tension rope can be fixed in the ground by obtaining a reaction force from the load-bearing plate driven into the ground.
Therefore, the load-bearing plate driven into the ground is hard to loosen, and a stable anchor strength can be secured.
<2> Since the tension rope is moored to the load-bearing plate so that it can be pulled out, the tension rope can be easily removed by pulling out one of the tension ropes exposed on the ground surface.
<3> By removing the tension rope, there is no concern that the tension rope will become an obstacle, and the ground can be effectively used.
<4> By providing a pair of V-shaped expansion blades on the load-bearing plate, not only the load-bearing plate swivels in the ground during driving to facilitate penetration, but also the surrounding earth and sand when the load-bearing plate penetrates. Is hard to be disturbed.
<5> When the tension rope is strained, the load-bearing plate turns and a pair of bent blades bite into the surrounding earth and sand, so that the pull-out resistance of the load-bearing plate increases.
<6> Since it is smaller and lighter than the conventional anchor pin, the manufacturing cost can be significantly reduced.

Perspective view of the plate type anchor device according to the present invention in which a part is omitted. Explanatory drawing when driving a load-bearing plate in a state where the ground is transparent Perspective view of the plate type anchor device after removing the driving jig Explanatory drawing with the tension rope removed and only the load-bearing plate left in the ground

Hereinafter, the present invention will be described in detail with reference to the drawings.

<1> Overall configuration of plate type anchor device (Figs. 1 and 2)
The plate type anchor device 10 is an alternative material to the conventional anchor pin, and can be used for various purposes such as fixing a wire mesh, a rope, a wire, a resin net, and a sheet material.

The plate-type anchor device 10 according to the present invention includes a load-bearing plate 20 having a sharp shape and a tension rope 30 moored to the load-bearing plate 20 so as to be removable.
Further, in the present invention, a driving jig 40 is used to penetrate the plate type anchor device 10 into the ground.

<2> Load-bearing plate (Figs. 1 and 2)
The load-bearing plate 20 includes an intrusion portion 21 having an inverted triangle shape, and two blade expansions 22 and 22 extending at both ends of the upper side of the intrusion portion 21 at intervals.
The load-bearing plate 20 can be easily manufactured, for example, by punching a part of a square plate having a side of about 5 cm and bending a pair of blade expansions 22 and 22.

<2.1> Penetration portion The penetration portion 21 is formed sharply so as to easily penetrate into the ground.
The size and tip angle of the tip of the penetration portion 21 are appropriately selected.

<2.2> Guide holes A plurality of guide holes 23 for arranging the tension ropes 30 are provided in a part of the load-bearing plate 20.
In this example, a form in which the guide holes 23 are formed at three locations will be described, but the number of guide holes 23 formed can be appropriately selected.

<2.3> Expansion of wings The two expansion wings 22, 22 are bent in the front-rear direction of the plate surface of the penetration portion 21, and function as a pull-out resistance material when they penetrate into the ground.
When the load-bearing plate 20 is viewed from the side end surface, the two blades 22, 22 are bent in a V shape and expanded.

The reason why the two blades 22 and 22 are bent in different directions is to generate a turning force in the load-bearing plate 20 when penetrating into the ground to facilitate penetration into the underground G. This is to exert a predetermined extraction resistance.

The reason why the predetermined space is provided between the two blades 22 and 22 is that the driving jig 40 is inserted between the two blades 22 and 22.

<2.4> Expansion angle of the wing expansion When the expansion angle of the two wing expansions 22 and 22 is reduced, the penetration resistance of the load-bearing plate 20 into the ground decreases, but the extraction resistance of the load-bearing plate 20 decreases. Become.
On the contrary, when the expansion angle of the two blades 22, 22 is increased, the pull-out resistance of the load-bearing plate 20 is increased, while the penetration resistance of the load-bearing plate 20 into the ground is increased.
Therefore, it is desirable that the expansion angle of the two blades 22,22 is in the range of 50 ° to 70 °, and practically 60 °.

<3> Chordee The tension rope 30 is a flexible tension rope that is distributed over a section from the load-bearing plate 20 to a predetermined height on the ground surface, and for example, a steel wire or a metal rope material can be applied. be.

<4> Driving Jig The driving jig 40 is a dedicated jig for fitting the load-bearing plate 20 into the ground, and is integrally formed with a long shaft 41 having a predetermined length and the upper end of the long shaft 41. It is provided with a jig 42.
The lower end of the long shaft 41 has a slit 43 into which the upper portion of the penetration portion 21 of the load-bearing plate 20 can be fitted.
The driving jig 40 is not indispensable, and other rod-shaped members can be used instead.

[How to use the plate type anchor device]
A method of using the plate type anchor device 10 will be described.

<1> Preparation for penetration (Fig. 1)
The tension ropes 30 are inserted into the plurality of guide holes 23, and the tension ropes 30 are moored in the load-bearing plate 20 in a folded state.

<2> Strike (Fig. 2)
With the slit 43 of the driving jig 40 sandwiched between the load-bearing plate 20, the upper end of the driving jig 40 is driven with a hammer tool or the like with the penetration portion 21 facing straight down.
By driving, the load-bearing plate 20 penetrates into the underground G, and the tension rope 30 moored to the load-bearing plate 20 is also drawn into the underground G.
Since a pair of blades 22, 22 are formed in a V shape on a part of the load-bearing plate 20, the load-bearing plate 20 turns in the ground G at the time of driving, and not only the penetration resistance is reduced, but also the earth and sand at the time of penetration. Is hard to be disturbed.

<3> Removal of driving jig (Fig. 3)
After driving the load-bearing plate 20 to a predetermined depth, the driving jig 40 is pulled out.
Since the driving jig 40 is only fitted to the load-bearing plate 20 through the slit, the driving jig 40 can be easily separated from the load-bearing plate 20 and removed.

<4> Use of plate type anchor device The tension rope 30 exposed on the ground surface is used as an anchor member.
The exposed portion of the chordee 30 is attached to and fixed to the object to be fixed according to the purpose of use.
A pulling force acts on the load-bearing plate 20 through the tension rope 30. Since the pull-out resistance of the load-bearing plate 20 due to the expanded blades 22, 22 is larger than the pull-out force of the tension rope 30, the load-bearing plate 20 does not come out of the underground G.

<5> Removal of the tension rope After achieving the purpose of use of the plate type anchor device 10, one of the tension ropes 30 exposed on the ground surface is pulled out by applying human or mechanical force.
When the pull-out resistance of the load-bearing plate 20 in the ground and the pull-out force of the tension rope 30 are compared, only the tension rope 30 can be pulled out because the pull-out resistance of the load-bearing plate 20 is large.
Therefore, only the load-bearing plate 20 is left in the underground G.
Since the tension rope 30 is pulled out from the underground G and removed, the tension rope 30 does not become an obstacle to the underground G.
Since the load-bearing plate 20 left in the ground G is small in size, there is no concern that the load-bearing plate 20 will become an obstacle even if it is left in the ground G.

G ... Ground 10 ... Plate type anchor device 20 ... Load-bearing plate 21 ... Penetration part 22 ... Wing expansion 23 ... Guide hole 30 ... Chordee 40 ... Driving Jig 40 ... Long axis 42 ... Handle 43 ... Slit

Claims (6)

It is a plate type anchor device
A load-bearing plate with a sharp shape and
The load-bearing plate is provided with a pulling rope that is foldable and moored so that it can be pulled out.
An intrusion portion where the load-bearing plate exhibits an inverted triangle, and
It is provided with a pair of blades extending at both ends of the upper side of the penetration portion.
A load-bearing plate is moored at the folded portion of the tension rope.
Plate type anchor device. The plate-type anchor device according to claim 1, wherein a pair of blades constituting the load-bearing plate are expanded in a V shape. The plate-type anchor device according to claim 1 or 2, wherein the penetration portion constituting the load-bearing plate and a pair of blades are integrally formed. The plate-type anchor device according to any one of claims 1 to 3, wherein the load-bearing plate is made of a steel plate. The plate-type anchor device according to any one of claims 1 to 4, wherein guide holes are formed in a part of the load-bearing plate, and tension ropes are inserted and moored through the plurality of guide holes. .. The plate-type anchor device according to claim 1, wherein the tension rope is a steel wire or a steel rope material.

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