JP3887467B2 - Anchor member - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anchor member that fixes a vegetation mat or the like when, for example, the vegetation mat or the like is stretched on a hillside slope.
[0002]
[Prior art]
Conventionally, an anchor member is used to fix a vegetation mat or the like in a fixed position in a slope protection method in which, for example, a vegetation mat or a greening net is extended on a slope of a mountainside or embankment.
The anchor member is provided with a locking head for locking a mat or the like on the base end side, for example, with a rod pile-shaped tip portion tapered so that it can be easily driven into the soil. An anchor member is driven into the soil at a predetermined interval from the top of the mat or the like and fixed.
[0003]
[Problems to be solved by the invention]
However, such a simple bar pile-shaped anchor member is easy to get out of the soil when the soil is soft or when the slope of the slope is steep, and the mat is fixed at a fixed position. There is a problem that the locking force to be kept tends to be insufficient.
[0004]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an anchor member that is firmly engaged with surrounding soil when driven into the soil and is not easily pulled out from the soil.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides an anchor member for locking a coating material spread on the upper surface of soil at a fixed position, wherein a large-diameter portion on the distal end side and a small-diameter portion on the proximal end side are stepped portions. A core body that is continuous through the taper and the tip of the large-diameter portion is tapered, and a cylindrical body that is fitted to the outside of the small-diameter portion of the core body and is joined to the stepped portion. the cylindrical body and implanted in the ground also to be driven together, also when driving the cylindrical body separately from the core, as bulging portion formed in a portion of the cylindrical body protrudes outward In addition, the bulging portion of the cylindrical body has a spiral shape formed between the slit grooves by punching a plurality of spiral slit grooves having a predetermined width at predetermined intervals along the circumferential direction of the cylinder. The punching remaining part is used, and the cylindrical body has a double cylinder structure of an inner cylinder and an outer cylinder with different spiral directions.
[0006]
And after driving the core of this anchor member into the soil, only the tube is further blown, the bulging portion of the tube protrudes outward, enters the surrounding soil, and does not easily escape Like that.
Here, since the tip of the cylindrical body is joined to the stepped portion of the core body, when the core body is driven, the cylindrical body is also driven into the soil together, and when the cylindrical body is hit, A buckling load can be applied.
Further, the bulging portion of the cylindrical body is easily crushed when a buckling load is applied to the cylindrical body, for example, and the crushed portion is likely to protrude outward.
[0007]
And the helical punching remainder formed between the slit grooves is formed by punching a plurality of spiral slit grooves with a predetermined width at predetermined intervals along the circumferential direction of the cylinder. It consists of.
[0008]
When a plurality of spiral slit grooves are provided along the circumferential direction of the cylinder in this way, when the cylinder is hit, the same portion is easily crushed and the punched remaining portion is buckled and easily spread outward.
[0009]
If the cylindrical body has a double cylinder structure of an inner cylinder and an outer cylinder with different spiral directions, the possibility of spreading the buckled part to the outside can be increased, and the soil of the part bulging to the outside can be increased. Engagement force with the inside can be increased.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of an anchor member of the present invention will be described with reference to the accompanying drawings.
Here, FIG. 1 is an exploded perspective view of the anchor member according to the present invention, FIG. 2 is an operation view showing a part of the anchor member in cross section, and FIG. 3 is an explanatory view showing an example of a use state.
[0011]
The anchor member according to the present invention securely fixes a covering material such as a vegetation mat or a greening net that is spread on the upper surface of soil when a vegetation is applied to a slope such as a mountainside or embankment, for example. It is made to be able to leave, and it is made difficult to get out after being driven into the ground.
[0012]
That is, as shown in FIG. 1, the anchor member 1 is fitted to the core body 2 at the center, the inner cylinder 3 fitted on the outer side of the core body 2, and the outer side of the inner cylinder 3. The outer cylinder 4 is provided and these are integrally joined.
[0013]
The core body 2 is made of, for example, a metal material, and has a rod-like shape in which a large-diameter portion 2a on the distal end side and a small-diameter portion 2b on the proximal end side are connected via a step portion d. The tip of 2a is configured as a tapered portion t that is easy to drive into the soil.
[0014]
A through hole h that penetrates the shaft in the diameter direction is provided near the base end of the small diameter portion 2b of the core body 2, and the position of the through hole h is driven into the core body 2 as described later. After that, when the inner cylinder 3 and the outer cylinder 4 are struck and driven, the end portions of the inner cylinder 3 and the outer cylinder 4 are set so as to be exposed to the outside, and this through hole h is formed. For example, it can be used as a fastening hole through which a wire or a rope for passing a net or the like of a covering material is passed.
[0015]
The inner cylinder 3 is made of a material such as metal, and the inner diameter of the cylinder 3 is made slightly larger than the small diameter portion 2b of the core body 2, and the outer diameter of the cylinder 3 is larger than that of the core body 2. The diameter is smaller than the diameter portion 2a, and the cylinder length is shorter than the length of the small diameter portion 2b.
[0016]
And the bulging part 3v comprised by several spiral slit groove | channel m ... is formed in the front end side of this inner cylinder 3. As shown in FIG.
That is, the bulging portion 3v is formed by punching a plurality of spiral slit grooves m along the circumferential direction of the cylinder, thereby leaving a plurality of spiral punching remaining portions x at the intermediate portion. When the inner cylinder 3 is compressed in the axial direction, the punching remaining portions x,... Easily spread outward.
[0017]
Next, the outer cylinder 4 is also made of a material such as metal, and the inner diameter of the outer cylinder 4 is made slightly larger than the outer diameter of the inner cylinder 3, and the outer diameter of the outer cylinder 4 is The diameter of the core body 2 is smaller than that of the large diameter portion 2 a, and the cylinder length is substantially the same as the length of the inner cylinder 3.
[0018]
Further, a bulging portion 4v formed by a plurality of spiral slit grooves n,... Is formed on the distal end side of the outer cylinder 4, and the spiral direction of the bulging portion 4v is the inner cylinder 3. Is formed in a direction opposite to the spiral direction of the bulging portion 3v and by punching a plurality of slit grooves n along the circumferential direction of the cylinder, a plurality of spiral punching remaining portions y,. To leave.
[0019]
In the anchor member 1 as described above, the inner cylinder 3 and the outer cylinder 4 are doubly covered on the small diameter portion 2b of the core body 2, and the end portions of the inner cylinder 3 and the outer cylinder 4 are brought into contact with the step portion d. At the same time, the contact portion is integrated by welding or brazing.
Then, as shown in FIG. 2 (A), the end portions of the small-diameter portion 2b of the core body 2 are integrated in a state of jumping out of the cylinder beyond the end portions of the inner cylinder 3 and the outer cylinder 4.
[0020]
Next, the use point etc. of this anchor member 1 are demonstrated based on FIG.2 and FIG.3.
The anchor member 1 may be applied to all locations of the fixing portion of the greening net 11 as a covering material developed on a slope 10 such as a mountainside, but particularly a lock net, an end rope of a slope net, etc. It is more efficient if applied as a fixture for fixing a specific location. At this time, it is used in combination with a conventional anchor member 21 for directly fixing a net.
[0021]
That is, as shown in FIG. 3, a greening net 11 as a covering material is developed on a slope 10 such as a mountainside, for example, an intermediate portion is fixed with a conventional anchor 21, and the anchor member 1 is placed at a location such as a terminal rope. Type.
Incidentally, this greening net 11 is like a fertilizer bag 13 mounted at predetermined intervals with respect to the double woven net 12, for example.
[0022]
The anchor member 1 is driven by striking and driving the upper end of the small diameter portion 2b of the core 2 of the anchor member 1 as shown in FIG. Put it in the ground. At this time, in the embodiment, since the outer diameter of the outer cylinder 4 is smaller than the diameter of the large diameter portion 2a, the whole can be driven smoothly.
[0023]
When the core body 2 is driven to a certain depth, the inner cylinder 3 and the outer cylinder 4 are then hit.
When hitting the inner cylinder 3 and the outer cylinder 4, for example, a dedicated pipe or the like is placed on the core body 2 to contact the end portions of the inner cylinder 3 and the outer cylinder 4, and the dedicated pipe or the like is hit. The inner cylinder 3 and the outer cylinder 4 are driven.
[0024]
Then, the tip portions of the respective cylinders 3 and 4 are brought into contact with the step portion d of the core body 2 so that they cannot advance, so that they receive a compressive load. y spreads outwards and enters the soil, resulting in a form as shown in FIG.
Incidentally, FIG. 2B shows a state in which the bulging portions 3v and 4v are neatly spread uniformly in the four circumferential directions, but it is not always necessary to neatly spread in this manner, and locally spreads only in a specific direction. Even if it is effective.
[0025]
Further, the driving amount of the inner cylinder 3 and the outer cylinder 4 is set such that at least the through hole h formed in the core body 2 is exposed to the outside.
[0026]
When the anchor member 1 is driven and fixed in such a state, the anchor member 1 is fastened and fixed to the terminal rope of the greening net 11 through the through hole h through a wire, a rope or the like.
Then, when the greening net 11 is fixed in this way, as shown in FIG. 3, the vegetation base material 14 and the like are sprayed from above, and the growth base of the plant is prepared.
[0027]
The present invention is not limited to the above embodiment. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects belongs to the technical scope of the present invention.
For example, the application location of the anchor member 1 is an example, and may be applied to other locations, and the material of the anchor member 1 may be arbitrary.
Further, the number of slit grooves m and n of the bulging portions 3v and 4v is also arbitrary.
Furthermore, you may use in order to fix the coating | covering material expand | deployed to soil other than a slope.
[0028]
【The invention's effect】
Tip or anchoring member of the present invention as described above, with respect to core small diameter portion of the large diameter portion and the base end side of the preceding end is contiguous via a stepped portion, and fitted to the cylindrical body on the outer side of the small-diameter portion After the part is joined to the stepped part and the core body is driven, the cylindrical body is driven so that the bulging part of the cylindrical body protrudes to the outside, so that the clothing material does not easily escape from the soil. It can be firmly fixed.
At this time, the bulging portion of the tubular body, the Rukoto be composed of a plurality of spiral punching balance, the or collapsed portion becomes the part is easily crushed to a seat屈状When you type the cylindrical body to the outside Can spread easily.
In addition , by making the cylinder a double cylinder structure of an inner cylinder and an outer cylinder with different spiral directions, it is possible to increase the possibility that the crushed portion will spread outward, and also increase the engagement force with the soil. I can do it.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an anchor member according to the present invention. FIG. 2 is an operational view showing a part of the anchor member in cross section. FIG. 3 is an explanatory view showing an example of a usage state.
DESCRIPTION OF SYMBOLS 1 ... Anchor member, 2 ... Core body, 2a ... Large diameter part, 2b ... Small diameter part, 3 ... Inner cylinder, 3v ... Expansion part, 4 ... Outer cylinder, 4v ... Expansion part, d ... Step part, t ... Tapered part, m, n ... slit groove, x, y ... punching remaining part.

Claims (1)

An anchor member for locking a covering material that is spread on the upper surface of soil at a fixed position, wherein a large-diameter portion on the distal end side and a small-diameter portion on the proximal end side are connected via a step portion, and the large-diameter portion And a cylindrical body that is fitted to the outside of the small diameter portion of the core body and the front end portion is joined to the stepped portion, and when the core body is driven into the soil, also cylindrical body so as to be driven together, also with the core of the tubular body when separately implanting, with the bulging portion formed in a portion of the cylindrical body so as to protrude outwardly, the tube The bulging part of the body is constituted by a spiral punching remaining portion formed between the slit grooves by punching a plurality of spiral slit grooves of a predetermined width at predetermined intervals along the circumferential direction of the cylinder. Furthermore, the anchor member is characterized in that the cylindrical body has a double cylindrical structure of an inner cylinder and an outer cylinder having different spiral directions .

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