JPH08184039A - Rope mooring anchor - Google Patents

Abstract

PURPOSE: To buffer an unexpectedly large power caused by strong wind, etc., applied to a rope without being easily pulled out when a rope mooring anchor is driven into earth. CONSTITUTION: A rope mooring anchor is constituted of a post 2 forming a sharp section 21 on the lower end, vane members 3 provided so as to oppose them to each other by holding the post 2 right above the sharp section 21 thereof and a buffer means 4 inserted into the post 2 from an upper end opening of the post 2. The vane members 3 are pivoted around horizontal shafts 22 providing the lower ends of them to the post 2 in a turnable manner, and a turning extent around the horizontal shafts 22 is set between a storing posture adhering to the surface of the post 2 and an open posture separating the front end side from the post 2. An inclining section 31a inclined so as to separate gradually from the post 2 directed upward in a state of the storing posture is formed in the front ends of the vane members 3. The buffer means 4 is equipped with an interlocking ring 47 capable of projecting and retreating for the post 2 and a coil spring 45 energized so as to pull the interlocking ring 47 into the post 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rope anchor for use in supporting a rope or an above-ground plant such as a tree or a building structure by stretching the rope.

[0002]

2. Description of the Related Art Trees (especially tall trees), temporary buildings at construction sites, and even ground installations and installations such as standing signboards installed outdoors, are usually collapsed by laying ropes on them. Be supported not to. A conventional technique for supporting such a rope will be described below by taking a tree as an example.

[0003] In normal vegetation, trees have roots that are widely spread in the soil, so they do not easily collapse, but they are vegetated on the spot for the convenience of construction such as when landscaping. Trees may be transplanted temporarily. Trees to be transplanted are temporarily planted with a root pot with a root wound inserted in a hole dug in the transplant site and covered with soil, so the standing condition is very high. It is fragile and may be easily destroyed by strong winds. For this reason, a splint is attached to the tree immediately after transplantation to prevent it from collapsing, but in the case of a tall tree, a rope cannot be reliably supported by the splint. Is generally supported.

FIG. 6 is an explanatory view showing a tree supported by a rope by the most typical conventional method. As shown in this figure, a predetermined number (usually three) of wooden piles 100 are driven into the ground around the high tree W with their heads projecting to the ground surface so as to surround them. Rope 101 is stretched between the upper part of Takagi W.
The tree is stretched to prevent the Takagi W from collapsing.

An annular locking member 102 as shown in FIG. 7 is mounted on a portion of the wooden pile 100 which is normally projected to the surface of the ground, and a turnbuckle for tension adjustment is provided between the locking member 102 and the rope 101. 103 is interposed. Then, the tension of the rope 101 is adjusted by rotating the turnbuckle 103 around a shaft center in a predetermined direction.

In place of the wooden pile 100, a metallic blade anchor 104 as shown in FIG. 8 may be used. The anchor 104 with blades is formed with a bifurcated portion 105 which is bifurcated in the lower portion, and the blades 106 are integrally attached to each lower end of the bifurcated portion 105 so as to be bridged.

In order to bury such a winged anchor 104 in the soil, a hole in which the wing 106 of the winged anchor 104 can be buried is dug in the ground surface, and the wing 106 is inserted into this hole. Later, the method of covering with soil is adopted. The blade 106 is covered with soil, and the soil serves as a retaining member.

[0008]

By the way, when the above-mentioned wooden pile 100 is used as an anchor for anchoring the rope 101, the outer peripheral surface of the wooden pile 100 driven into the soil and the surrounding soil in contact with it. Wooden pile 10 only by frictional force
Since the retaining function of 0 is obtained, there is an inconvenience that the wooden pile 100 is very easily removed when an upward force is applied.

Therefore, in order to prevent the wooden pile 100 from coming off easily, it is necessary to drive the wooden pile 100 deeply into the ground. Therefore, the wooden pile 100 is required to be very long, and In order to drive the pile 100 deep into the soil, a working machine such as a pile driver has to be used, which causes a problem that material cost and construction cost increase.

On the other hand, the bladed anchor 104
Is provided with a blade 106 below the bifurcated portion 105, and soil is covered on the blade 106 in a state where the blade 106 is buried in the soil. Therefore, a retaining effect due to the weight of the soil is expected. In order to bury such a winged anchor 104, the surface of the ground must be dug, which causes a problem that the construction cost for this is increased.

Furthermore, when the anchor 104 with blades is initially buried, the soil covered by the blades 106 is not yet sufficiently solidified, so the anchor 104 cannot withstand a large pulling force, and a strong wind is applied to the high tree W. However, there is a problem that the blade 106 may easily slip out of the soil and the tree W may collapse.

The tension of the rope 101 can be adjusted by
Since the turnbuckle 103 is rotated, it is very troublesome when the number of Takagi W is large, and
Once the rope 101 is stretched so as to obtain a predetermined tension, the rope 101 does not expand or contract. Therefore, when a large force is applied to the tree W in a strong wind, the force causes the tree W to move to the rope 1
The problem that 01 is broken at the bonded portion occurs.

Further, if the rope is continuously supported on the tree W for a long period of time, the tension may disappear due to the looseness of the rope 101.
There is a problem that wobbling occurs and the tensioning effect of the rope 101 is lost.

The present invention has been made in order to solve the above problems, and it is easy to drive into the soil, and once it is driven in, it is not easily pulled out, but it is added to the rope. It is an object of the present invention to provide a rope mooring anchor capable of buffering a sudden large force caused by a strong wind or the like.

[0015]

The rope anchoring anchor according to claim 1 of the present invention is a rope anchoring anchor which is buried in the soil for anchoring a rope on the ground, and has a sharp end at the lower end. It is composed of a formed cylindrical pillar and at least a pair of blade members provided directly above the sharpened portion of the pillar so as to face each other with the pillar interposed therebetween, and the lower end portion of the blade member is a pillar. The rotation range about the horizontal axis is set between a storage posture in which the support shaft is rotatably provided about the horizontal axis and is in close contact with the surface of the support column, and an open posture in which the tip side is separated from the support column. At the same time, the blade member is formed with an inclined portion that is inclined so as to be gradually separated from the support column upward in the storage posture.

The rope anchoring anchor according to claim 2 of the present invention is a rope anchoring anchor to be buried in the soil in order to anchor the rope on the ground, and has a tubular shape with a sharpened portion formed at the lower end. It is composed of a column and a cushioning means provided at the upper end of the column. The cushioning means is a rope anchoring member that can be retracted from the column and a biasing force for pulling the rope anchoring member into the column. Means and the upper end of the rope anchoring member is configured so that the rope can be anchored.

The rope anchoring anchor according to claim 3 of the present invention is a rope anchoring anchor to be buried in the soil for anchoring the rope on the ground, and has a tubular shape with a sharpened portion formed at the lower end. A strut, at least a pair of blade members provided directly above the sharpened portion of the strut so as to face each other with the strut sandwiched therebetween, and a cushioning means provided at an upper end portion of the strut. The lower end is rotatably supported about a horizontal axis provided on the column, and is rotated around the horizontal axis between a storage posture in which the lower end portion is in close contact with the surface of the column and an open posture in which the tip end side is separated from the column. A moving range is set, and an inclined portion is formed at the tip of the blade member so as to be gradually separated from the support in an upward direction in the storage posture, and the cushioning means can be retracted from the support. Rope connection A member and an urging means for urging the rope anchoring member so as to pull it into the column, and the upper end of the rope anchoring member is configured so that the rope can be anchored. Is.

A rope tethering anchor according to a fourth aspect of the present invention is the rope tethering anchor according to the first or third aspect, wherein the blade members extend in directions in which horizontal axes extend in the vertical direction of the column. It is characterized in that a plurality of stages are provided in different states.

The rope anchoring anchor according to claim 5 of the present invention is the rope anchoring anchor according to claim 1, 3 or 4, wherein the vane member has a maximum area in a plan view in an open position. It is characterized in that a rotation range around a horizontal axis is set.

[0020]

According to the rope anchoring anchor of the above-mentioned claim 1, by performing a pile driving operation such as striking the head with a hammer in a state in which the sharp end of the strut is pierced into a predetermined ground. The pillars gradually infiltrate and are buried in the soil with the vane member maintaining the storage posture. When the pillar is pulled up by a predetermined distance in this buried state, soil is caught between the inclined portion of the blade member and the surface of the pillar, and the trapped soil prevents the blade member from rising. Relative rotation around the horizontal axis as the pillar rises,
Be in an open position. Then, when the blade member is in an open posture in which the blade is spread in the soil, it is blocked by the soil above it, so that the escape from the soil is blocked.

According to the rope anchoring anchor of the second aspect, when the rope is anchored to the upper end portion of the rope anchoring member inside the pillar embedded in the soil, a large tensile force is applied to the rope. The force causes the rope anchoring member to move in the direction of coming out of the inside of the column. The movement of the rope against this biasing force buffers the force applied to the tethered object tethered by the rope.

According to the rope anchoring anchor of the third aspect of the present invention, by performing a pile driving operation such as striking the head with a hammer in a state in which the sharpened portion of the tip of the column is pierced into a predetermined ground. The pillars gradually infiltrate and are buried in the soil with the vane member maintaining the storage posture. When the pillar is pulled up by a predetermined distance in this buried state, soil is caught between the inclined portion of the blade member and the surface of the pillar, and the trapped soil prevents the blade member from rising. As the stanchion rises, it relatively rotates around the horizontal axis and assumes an open position. Then, when the blade member is in an open posture in which the blade is spread in the soil, it is blocked by the soil above it, so that the escape from the soil is blocked.

Further, when a large tensile force is applied to the rope by anchoring the rope to the upper end of the rope anchoring member inside the pillar embedded in the soil, this force causes the rope anchoring member to move out of the pillar. Moving. The movement of the rope against this biasing force buffers the force applied to the tethered object tethered by the rope.

According to the rope anchoring anchor of the fourth aspect, the blade members are provided in a plurality of stages with the horizontal axes extending differently from each other in the vertical direction of the supporting column, and are provided in the soil. By pulling up the pillars that have been piled up once, all of the blade members at the plurality of stages are in an open posture in the soil, so that the pillars are more reliably buried in the soil in a state that is difficult to pull out.

In the rope anchoring anchor according to the fifth aspect of the invention, since the blade member is set in a rotation range about the horizontal axis so that the area of the blade member in plan view is maximized in the open posture, the blade member is It becomes possible to receive the largest soil resistance in the soil.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway perspective view showing an example of a rope anchoring anchor according to the present invention. As shown in this figure, an anchor 1 for mooring a rope is provided with a rectangular metal pillar 2 having a pointed sharp portion 21 at a lower end thereof, and above and above the sharpened portion 21 of the strut 2. It is basically composed of two pairs of upper and lower blade members 3 provided so as to face each other with the support column interposed therebetween, and a cushioning unit 4 inserted into the support column 2 from the upper end opening of the support column 2.

In the present embodiment, the pillar 2 is a square tube having a hollow inside.
Is not limited to a rectangular cylinder, and may be a cylindrical shape, a triangular cylinder, or a polygonal cylinder having five or more pentagonal cylinders. May be.

Further, in this embodiment, the sharpened portion 2 is provided.
1 is formed integrally with the support 2 by cutting the tip of the prism and subsequent welding, but the sharpened portion 21 of the present invention is not limited to the integral processing as described above. It may be formed by fitting a sharpened portion 21 made of wood into the tip opening.

The vane member 3 is formed by pressing a steel plate having a predetermined thickness. The blade member 3 has a blade body 31 whose base end side is in close contact with the surface of the support column 2.
And a pair of left and right brackets 32 provided on both sides of the blade main body 31 so as to hold the column 2. The base end sides of these brackets 32 have sharpened portions 21.
Is rotatably supported around a horizontal shaft 22 composed of a pair of bolts provided immediately above the column 2.

When the base end side of the blade main body 31 is in the storage posture of the blade member 3 in which the base end side is in close contact with the surface of the column 2, the blade main body 3
An inclined portion 31a that is inclined so that the distance from the support 2 is gradually increased is formed on the front end side of the inclined portion 1.
A tapered triangular portion 31b that is further inclined outward is provided at the tip of 1a. The inclination angle of the triangular portion 31b with respect to the support column 2 is set to about 45 ° when the blade member 3 is stored.

On the other hand, a cutout portion 33 having the same width as the column 2 is provided on the base end side of the blade main body 31, and the cutout portion 33 is provided.
The base end edge portion 31c of the blade main body 31 formed by the function of a stopper serves to stop the blade main body 31 from the storage posture in which the blade main body 31 is in close contact with the surface of the support column 2 and the release posture separated from the support column 2 (two-dot chain line in FIG. 1). When it is rotated about the horizontal axis 22 until it becomes), the above-mentioned base end edge portion 31c abuts on the surface of the column 2 to prevent the blade body 31 from rotating about the horizontal axis 22. It is supposed to be done.

Further, the blade main body 3 including the inclined portion 31a and the triangular portion 31b in a state in which the base end edge portion 31c of the blade member 3 is in contact with the column 2 and the blade member 3 is in the released posture.
The rotation range of the blade member 3 around the horizontal axis 22 from the storage posture to the release posture is set so that the area of the plane view 1 of 1 is maximized.

In this embodiment, such a pair of blade members 3 are provided in the vertical direction of the support column 2 in two steps. The pair of horizontal shafts 22 supporting the upper blade member 3 of the column 2 are arranged so as to be orthogonal to the lower horizontal shaft 22. Therefore, all the blade members 3
In the released posture, the blade members 3 are spread over the four sides of the support column 2 in a plan view.

As shown in FIGS. 1 to 3, the buffer means 4 has a head member 41 fitted in the upper opening 23 of the column 2.
And the locking plate 44 arranged in the column 2, and the locking plate 4
4 and a head member 41, and a wire (rope anchoring member) 46 fitted vertically in the coil spring 45 and stretched between the head member 41 and the locking plate 44. It consists of and.

The head member 41 has an upper exposed head 42.
And a fitting portion 43 integrally fixed to the bottom portion of the exposed head portion 42. The exposed head portion 42 has an accommodation chamber 42a for accommodating the upper end portion of the wire 46 therein, and an insertion hole 42 through which the wire 46 is inserted at the bottom portion.
b is drilled. Further, the fitting portion 43 is sized so as to be slidably fitted into the pillar 2 from the upper opening 23, and the head member 41 is attached to the upper opening 23 by fitting the fitting portion 43 into the upper opening 23. It is designed to be used.

A pair of left and right through holes 43a extending in the horizontal direction are formed in the fitting portion 43, and the bolt 24 is inserted into the through hole 43a with the fitting portion 43 fitted in the upper opening 23. The head member 41 is fixed to the column 2 by being fastened with the nuts 24a. An insertion hole 43b corresponding to the insertion hole 42b of the exposed head portion 42 is also formed in the insertion portion 43, and the wire 46 is inserted into these insertion holes 42b and 43b.

On the other hand, the locking plate 44 installed inside the pillar 2
A pair of vertical holes 44a are bored in the vertical hole 44a.
The folded-back portion of the lower end of the wire 46 is inserted therethrough. A reinforcing member 44b is arranged on the lower surface of the locking plate 44 and between the pair of vertical holes 44a, and the folded portion of the wire 46 is wound around the reinforcing member 44b to lock the locking plate 44. Is reinforced.

The wire 46 is formed by folding one wire up and down and binding it with a wire clip 46a attached at an appropriate position. An annular portion of the lower end of the wire 46 is inserted into the vertical hole 44a so that the locking plate 44
Attached to. Further, the annular portion of the upper end is fitted in the outer peripheral groove of the annular locking ring 47. The locking ring 47 is dimensioned to be larger than the insertion hole 42b, the lower portion is formed to be tapered downward, and the tapered portion is shaped to be fitted into the insertion hole 42b.

The size of the locking ring 47 is determined so that it can be housed in the housing chamber 42a of the exposed head 42, and the locking ring 47 is housed in the housing chamber 42a. The upper end portion is dimensioned so as not to project outside from the accommodation chamber 42a. Therefore, even if the upper end surface of the exposed head portion 42 is tapped with a driving jig such as a hammer, the driving jig does not hit the locking ring 47, and a reliable driving operation of the anchor 1 into the soil is realized.

Then, the exposed head 42 and the locking plate 44 are urged in a direction away from each other by the urging force of the coil spring 45 interposed between the exposed head 42 and the locking plate 44. As a result, the wire 46 is always stretched between the exposed head 42 and the locking plate 44 with a tension corresponding to the biasing force of the coil spring 45.

Therefore, with the support column 2 fixed, the locking ring 4
When 7 is pulled up, the locking plate 44 attached to the lower end of the wire 46 rises against the biasing force of the coil spring 45, the coil spring 45 is compressed, and the locking ring 47 exposes the head. The state shown in FIG. 3 is projected from the accommodation chamber 42a of 42 to the upper side.

An inverted U-shaped shackle 5 as shown in FIG. 1 can be attached to the exposed head 42 of the head member 41. This shackle 5 is for pulling up the anchor 1 once driven into the soil by a predetermined distance, and a pair of left and right circular shaft seats 51 are provided at both lower end portions thereof, and the shaft seats 51 are mutually A corresponding shaft hole 52 is drilled.

On the other hand, the exposed head 42 of the head member 41 is provided with a support hole 42c corresponding to the shaft hole 52 of the shackle 5, so that the shaft hole 52 and the support hole 42c correspond to each other. While holding the exposed head 42 with the pair of left and right shaft seats 51, the locking rod 53 is attached to the holes 52, 42c.
The shackle 5 is attached to the exposed head 42 by inserting the shackle 5 into the exposed head 42 as shown in FIG.

FIG. 4 is an explanatory view for explaining the operation of the present invention. (A) is a state in which an anchor is being driven into the soil, and (b) is a state in which the support column of the anchor is buried in the soil. (C) shows a state in which the once-supported support column is pulled upward by a predetermined length, and (D) shows a state in which a rope is stretched on the support column raised by a predetermined length.

First, to drive the anchor 1 into the soil,
The sharpened portion 21 of the pillar 2 is pierced on the target ground surface, and as shown by the white arrow in FIG. To do. Then, the blade member 3 attached to the surface of the pillar 2 receives the pressure of the surrounding soil as the pillar 2 enters the soil E, and rotates about the horizontal axis 22 in a direction approaching the surface of the pillar 2. As a result, the storage posture is brought into close contact with the surface of the column 2. Therefore, the resistance that the blade member 3 receives from the soil becomes the minimum state, and the support column 2 is easily buried in the soil E without any trouble.

Next, the driving of the anchor 1 is stopped with the exposed head 42 protruding from the surface of the earth, the exposed head 42 is held by the shackle 5 (FIG. 1), and the locking rods 53 are retained in the shaft holes 52, 42c. The shackle 5 is attached to the exposed head portion 42 of the support column 2 by inserting the shackle 5 as shown in FIG. Then, a hook H of a work machine (not shown) is locked to the shackle 5.

After that, the work machine is operated to raise the hook H to pull up the support column 2 from the soil E by a predetermined distance. Then, since the inclined portion 31a which is opened outward and the triangular portion 31b whose angle is set to approximately 45 ° with respect to the support column 2 are provided on the upper portion of the blade member 3, the inclined portion 31a and the inclined portion 31a are formed. The soil around the pillar 2 in the soil E enters between the triangular portion 31b and the surface of the pillar 2, and this becomes resistance to rotate the blade member 3 around the pillar 2 in a direction away from the pillar 2.

As a result, in the state in which the support column 2 is pulled upward by a predetermined distance, (c) of FIG. 4 and FIG.
As shown in, the upward movement of the blade member 3 that spreads out at a right angle to the support 2 is blocked by the soil of the soil E above it, and the upward movement of the support 2 is suppressed. It will be in a state of being. In this state, a space E1 is formed in the lower part of the column 2 along the rotation locus of the blade member 3,
The space E1 is filled for a long period of time due to infiltration of rainwater into the soil E, collapse of the inner wall of the space E1, and the like.

The setting of the anchor 1 in the soil E is completed in a state where the pillar 2 is pulled upward from the soil E by a predetermined distance. In this state, the rope R attached to the tall tree W is attached to the locking ring 47 of the exposed head 42, so that the tall tree W is anchored to the anchor 1 via the rope R as shown in FIG. It will be in a state of being.

Since the pillar 2 is surely restrained from moving upward by the blade members 3 which are embedded in the soil E and spread in all directions, the anchor 1 does not move even if a large pulling force is applied to the anchor 1. It is not easily pulled out. Further, even if a very large tension is applied to the rope R by the swing of the tree W caused by a strong wind or the like, the wire 46 directly attached to the rope R is, as shown in FIG. Since the coil spring 45 is pulled upward against the urging force of the coil spring 45, the urging force of the coil spring 45 serves as a cushioning effect, thereby effectively preventing breakage of the tall tree W.

In the above embodiment, the support 2 of the anchor 1 is provided with both the blade member 3 and the buffer means 4. However, in the rope anchoring anchor of the present invention, the support 2 is provided with the blade member 3 and the buffer. It is not limited to providing both of the means 4, and only one of them may be provided.

When the support member 2 is provided with only the blade member 3 without providing the buffering means 4, the anchor 1 cannot obtain the buffering function by the buffering means 4, but the supporter 2 is provided in the soil E.
It is possible to bury it reliably and stably inside,
When only the cushioning means 4 is provided without attaching the blade member 3 to the support pillar 2, the difficulty of pulling out the support pillar 2 is sacrificed, but the cushioning effect of the shock absorbing means 4 can be enjoyed. Since the function of the blade member 3 can be compensated for to some extent by increasing the dimension of the pillar 2 and increasing the pullout resistance from the soil E, the blade member 3 is not applied and only the buffering means 4 is used. When it is provided, it is preferable to make the column 2 longer than usual.

(Test Example) In order to investigate the difficulty of pulling out the anchor buried in the soil, the anchor according to the present invention (Example) was driven into the soil and once buried. After that, a rope was connected to the top of the anchor, the rope was pulled in the vertical direction to forcibly pull out the anchor, and the pulling force at that time was measured. The pull-out force was measured by interposing a coil spring (spring constant: k = 7 kg / mm) in the middle of the rope and measuring the amount of compression of the coil spring when the anchor was pulled out.

On the other hand, as a comparative example, a wooden pile was prepared, which was driven into the soil and the same measurement as that of the above-mentioned example was performed. The hardness (Nr) of the soil at the test site applied to the above-mentioned examples and comparative examples was "23" as a result of measurement by a publicly known earth-penetration type penetration tester.

The anchors used in the examples had the following dimensions. -Length 80 mm x width 80 mm x height 970 mm The total area in plan view when all four blades attached to the anchor of the example were open was as follows.

430 cm ^{2 The} wooden stakes of the comparative example used had the following dimensions. -Diameter 80 mmφ x height 1200 mm.

The test results are shown in Table 1.

[0058]

[Table 1]

From the test results shown in this table, in the case of the anchor according to the present invention, the force required for pulling it out (pulling resistance) is 595 kg, which is very large, while the wooden pile of the comparative example. In the case of No. 2, the anchor of the present invention was extremely difficult to pull out once it was buried in the soil because it was pulled out with a force of only 196 kg. It turns out that

(Results of Observing Underground Condition of Anchor of Example) With the anchor 1 according to the present invention being driven into the soil, it is visually checked whether or not the blade member 3 attached to the support column 2 is open. For the purpose of observation, the anchor 1 of the above-mentioned example was driven into the soil, then pulled up by 17 cm to 20 cm, and the buried portion of the column 2 was dug back with a scoop. Then, the open state of the blade member 3 was observed, but in any of the 10 repeated tests, as shown in FIG. 5, all the blade members 3 were in the completely open posture, and after the anchor 1 was driven in, The blade member 3 is pulled up slightly
Was confirmed to be open in soil E.

[0061]

As described in detail above, the rope anchoring anchor according to claim 1 of the present invention comprises a cylindrical column having a sharpened portion at its lower end and a column directly above the sharpened portion of the column. And at least a pair of blade members provided so as to face each other, the blade member is rotatably supported at its lower end portion about a horizontal axis provided on the column,
Further, the rotation range around the horizontal axis is set between a storage posture in which the support is closely attached to the surface of the support and an open posture in which the tip side is separated from the support, and the storage posture is provided at the tip of the blade member. In addition, an inclined portion is formed so as to be gradually separated upward from the support.

Therefore, if the head of the pillar is struck by a hammer or the like with the sharpened portion at the tip of the pillar pierced into a predetermined ground, the pillar gradually invades and is buried in the soil with the blade member kept in the stored posture. It will be in the state of being. When the pillar is pulled up by a predetermined distance in this buried state, soil is caught between the inclined portion of the blade member and the surface of the pillar, and the trapped soil prevents the blade member from rising. As the stanchion rises, it relatively rotates around the horizontal axis and assumes an open position. When the blade member is in the open posture with the blade spread in the soil, the rope existing in the upper part of the blade is blocked by the soil existing in the upper part of the blade, and the rope is securely blocked from coming out of the soil. It is convenient to be able to moor.

The rope anchoring anchor according to claim 2 of the present invention is a rope anchoring anchor to be buried in the soil in order to anchor the rope on the ground, and has a tubular shape with a sharpened portion formed at the lower end. It is composed of a column and a cushioning means provided at the upper end of the column. The cushioning means is a rope anchoring member that can be retracted from the column and a biasing force for pulling the rope anchoring member into the column. Means and the upper end of the rope anchoring member is configured so that the rope can be anchored.

Therefore, when a large tensile force is applied to the rope by anchoring the rope to the upper end portion of the rope anchoring member, this force causes the rope anchoring member to move in the direction of coming out of the column. Due to the movement of the rope against the biasing force, the force applied to the tether anchored by the rope is buffered, and the damage of the tether can be effectively suppressed, which is advantageous.

According to the rope anchoring anchor of the fourth aspect of the present invention, the blade members are provided in a plurality of stages with the horizontal axes extending in different directions over the vertical direction of the support. By pulling up the pillars that have been piled up inside, the multi-stage blade members are all in the open position in the soil, so the pillars are buried in the soil in a state that is more difficult to pull out, and the ropes are securely attached. It is convenient for anchoring on a column.

According to the anchor for anchoring a rope of claim 5 of the present invention, since the blade member is set in a rotation range about the horizontal axis so that the area in plan view is maximized in the open posture, the blade is fixed. The member is able to receive the greatest soil resistance in the soil, which is convenient for further securely anchoring the rope to the column.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an example of a rope anchoring anchor of the present invention.

FIG. 2 is a cross-sectional view of the upper portion of the anchor of FIG. 1, showing the wire housed in a column.

FIG. 3 is a cross-sectional view of the upper portion of the anchor of FIG. 1, showing a state in which the upper portion of the wire projects outward from the inside of the column against the biasing force of the coil spring.

FIG. 4 is an explanatory diagram for explaining the operation of the present invention,
(A) is a state where anchors are being driven into the soil,
(B) shows the anchor pillars buried in the soil,
(C) shows a state where the once-embedded support column is pulled upward by a predetermined length, and (D) shows a state where a rope is stretched over the support column that has been pulled up a predetermined length.

FIG. 5 is a perspective view showing a state in which the anchor of FIG. 1 is embedded in soil.

FIG. 6 is a perspective view showing a state in which a tall tree is supported by a conventional anchor (tree pile) via a rope.

FIG. 7 is a perspective view illustrating a connection structure between the wooden pile and the rope of FIG. 6;

FIG. 8 is a perspective view illustrating a conventional winged anchor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Anchor 2 Support 21 Sharp tip 22 Horizontal axis 23 Upper opening 24 Bolt 24a Nut 3 Blade member 31 Blade main body 31a Inclined part 31b Triangular part 32 Bracket 33 Notch part 4 Buffer means 41 Head member 42 Exposed head 42a Storage chamber 42b Insertion hole 42c Support hole 43 Fitting part 43a Through hole 43b Insertion hole 44 Locking plate 44a Vertical hole 45 Coil spring 46 Wire (rope anchoring member) 46a Wire clip 47 Locking ring 5 Shackle 51 Shaft seat 52 Shaft hole 53 Locking rod

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Ishihara 1-5-17 Dojima, Kita-ku, Osaka City Koizumi Seima Co., Ltd. Osaka Sales Office

Claims (5)

[Claims] 1. An anchor for anchoring a rope to be anchored in the ground for anchoring a rope on the ground, comprising: a cylindrical column having a sharpened portion at its lower end; and a column directly above the sharpened portion of the column. And at least a pair of blade members provided so as to face each other across the
The lower end of which is rotatably supported about a horizontal axis provided on the column and which is in close contact with the surface of the column, and the tip side of which is in an open state in which the tip side is separated from the column, has a horizontal axis about the horizontal axis. For the rope mooring, the turning range is set and an inclined portion is formed at the tip of the blade member so as to be gradually separated from the support column upward in the storage posture. anchor. 2. An anchor for anchoring a rope to anchor the rope on the ground, which is a tubular support having a sharpened lower end, and a buffer provided at the upper end of the support. The shock-absorbing means includes a rope anchoring member that can be retracted into and out of the column, and a biasing unit that biases the rope anchoring member in a direction to draw the rope anchoring member into the column, and the upper end of the rope anchoring member. An anchor for rope anchorage, characterized in that the part is configured so that ropes can be anchored. 3. A rope mooring anchor to be buried in soil for mooring a rope on the ground, comprising a cylindrical column having a sharpened portion at its lower end, and a column directly above the sharpened portion of the column. It is composed of at least a pair of vane members provided so as to face each other with sandwiching, and a cushioning means provided at the upper end portion of the column, and the vane member has its lower end portion around a horizontal axis provided on the column. The rotation range around the horizontal axis is set between a storage posture in which the support is rotatably supported and in close contact with the surface of the support, and an open posture in which the tip side is separated from the support, and the blade member is provided. An inclined portion is formed at the tip end of the column so as to be gradually separated from the column in the above-mentioned storage posture, and the buffer means is a rope anchoring member that can be retracted from the column and the rope anchoring member is supported by the column. Pull in A rope anchoring anchor, wherein the rope anchoring member is configured so that the rope can be anchored to the upper end portion of the rope anchoring member. 4. The rope tether according to claim 1, wherein the blade members are provided in a plurality of stages with the horizontal axis extending in different directions over the vertical direction of the column. For anchor. 5. The rope according to claim 1, 3 or 4, wherein the blade member has a rotation range about a horizontal axis set such that an area in a plan view is maximized in an open posture. Anchor for mooring.