JP7203684B2 - Simple construction pull-out resistance anchor - Google Patents

Description

Article 30, Paragraph 2 of the Patent Law applies Date of issue April 15, 2019 Publisher Watanabe Pipe Co., Ltd. Publication SEDIA Hokkaido 2019>2020 Watanabe Pipe's Strong House Study Group Choose! "Strong House" Reader 3rd and 4th pages (outside, attached certificate B) to T)) Date of issue April 22, 2019 Publisher Watanabe Pipe Co., Ltd. Publication 2019 general catalog "Rakuchin (Japanese Agriculture and Greenhouse Horticulture General Catalog 2019)” pp. 16, 17, 66, 67

The present invention relates to a resistance anchor that resists pull-out forces in simple constructions that are installed directly on the ground, such as greenhouses for growing plants.

Cultivation greenhouses are attracting attention and are becoming popular as facility agriculture.
In particular, there is a need for agriculture to address the structural issues faced by Japanese agriculture, revitalize agriculture, and strengthen competitiveness. It is at a turning point such as the Federation of Agriculture, Commerce and Industry, the sixth industrialization, TPP, and the entry of companies. From the market to the industrialization of agriculture, it is required to satisfy elements such as stable quality, stable shipment quantity, and year-round supply. From the perspective of the supply side that produces agricultural products, if these three elements can be satisfied, it will be possible to secure stable buyers (markets) and stabilize management. can be converted to, and it can be expected to grow as an industry.
Greenhouse cultivation is effective as a means of controlling the cultivation environment by alleviating the effects of weather fluctuations, planning cultivation, and stable shipment. It is one of the technically effective means to solve agricultural problems.

As an example of a greenhouse, a large number of pipe frames made by bending round pipes into an arch shape are arranged in rows at intervals of about 60 to 100 cm, connected to the beams of the foundation, and piles with screw-shaped blades are connected to the foundation. There is a vinyl house (see FIG. 9, Patent Document 1: Japanese Patent Application Laid-Open No. 2013-169200).
Cultivation greenhouses such as pipe houses are becoming larger in size, and are collapsing due to wind damage caused by strong winds.
Lightweight pipe houses, which are fixed by inserting pipes or stakes into the field, are blown up by the wind and are pulled upwards, causing them to collapse.
Various anchors have been proposed to stabilize the foundations of greenhouses for cultivation such as pipe houses.
In Patent Document 2 (Japanese Patent Application Laid-Open No. 2003-306935) and Patent Document 3 (Japanese Patent Application Laid-Open No. 9-13371), anchor wings that spread at the tip of the anchor support rod and a three-dimensional rotating An anchor body is disclosed.

Patent Document 4 (Japanese Patent Application Laid-Open No. 2016-98530) discloses a disc-shaped anchor body (see FIG. 10) rotatably supported by an impact imparting tool for driving. These disc-shaped anchors are driven into the ground in a tilted state and generate a large resistance in the direction perpendicular to the tilt. It can be driven by rotating and avoiding stones, etc., and the driving location may change. As described in the specification, this example is particularly effective for unit supports that are applied while changing from multiple directions, such as fences of fruit trees.

JP 2013-169200 A JP-A-2003-306935 Japanese Patent Application Laid-Open No. 09-013371 JP 2016-098530 A

An object of the present invention is to provide a pull-out resistance anchor used in a greenhouse for cultivation, etc., which can be driven with little resistance and exhibits a large pull-out resistance by changing its attitude in the horizontal direction.

1. A pull-out resistance anchor for a cultivation greenhouse comprising a plate-shaped anchor plate and a connector,
The anchor plate has a pointed tip, a rear edge that serves as a receiving part for the pushing jig, and a convex part for guiding straight movement provided on one surface from the tip to the rear end. The joint with the connecting body is formed in the part,
The connecting body has a front end joined near the center of the center of gravity of the anchor plate, a rear end having a joint with the ground member, the front end being separable from the convex portion ,
A pull-out resistance anchor, characterized in that the connection body and the central portion of the anchor plate have a joint structure in which rotation is free.
2. The distal end of the connecting body is folded back to form an annular portion, and the annular portion is an open type with an interval between the anchor plates,
1. The convex portion of the anchor plate is a plate, has a hole for joining, and the thickness from the hole to the upper side is smaller than the interval between the anchor plates of the annular portion . Pull-out resistance anchor as described.
3. 1. The anchor plate is provided with a posture guide portion that bends in the opposite direction to the surface where the connection portion with the connecting body is located at the rear edge portion. or 2. pull-out resistant anchor as described in .
4. 1. The connecting body is a rod-shaped body or a linear body, and is provided with a length adjusting portion on the rear end side. ~ 3. A pull-out resistant anchor according to any of the preceding claims.
5. 1. ~ 4. 2. A pushing jig for pushing the pull-out resistance anchor described in any one of 1 above into the ground, wherein the rear end side of the rod-shaped body is a pressing part, and the rear edge of the plate-shaped body of the anchor is constrained to the front end side of the rod-shaped body. A pushing jig characterized by comprising a claw portion provided with a T-shaped insertion groove or a cross-shaped insertion groove .
6. 1. ~ 4. Any of the pull-out resistant anchors described in 5 . A method of installing a pull-out resistance anchor using the pressing jig described in
Position the anchor plate of the pull-out resistance anchor along the foundation beam or support of the simple structure on the ground with the tip downward,
Install the pushing jig at the rear end of the anchor plate,
Push the rear end of the push-in jig to position the anchor plate deeper than the planned installation depth of the ground by a predetermined depth,
Pull out the pressing jig,
Pull up the connector to change the posture, adjust the posture of the anchor plate in the horizontal direction,
The construction process for connecting the foundation beams, struts or ropes of the simple structure and the rear end of the pull-out resistance anchor,
A method of installing a pull-out anchor, comprising:

Since the pull-out resistance anchor of the present invention is an anchor plate having a convex portion on the back of a flat plate, it can be inserted in a predetermined direction without bending in the ground, and can be installed in an accurate position. By slightly pulling up the connecting body provided in the anchor plate, the anchor plate can be changed to a horizontal posture in the ground, and a large pull-out resistance can be exhibited. Even a small plate-like body can become horizontal in the ground and exert a large pull-out resistance.
When it is inserted into the ground, it is in the shape of a flat plate in the vertical direction, so the insertion resistance is small, so it can respond quickly in emergencies, etc., and is effective as a countermeasure against wind damage.
Since the anchor plate and the connecting body are provided at a position separated upward from the main body of the anchor plate and substantially on the center of gravity, when the connecting body is pulled up, the posture of the anchor plate can be changed in the horizontal direction in the ground. The anchor plate and the connecting body are separate bodies, and by using them in combination on site, the size of the anchor body and the length of the connecting body can be appropriately selected and used.
The pushing jig for inserting the anchor plate into the soil can stabilize the anchor plate by sandwiching the rear edge of the anchor plate and the convex portion.
It can respond flexibly to wind damage countermeasures for cultivation greenhouses with a lightweight and simple structure.

Examples of pull-out resistance anchors Exploded view of pull-out resistance anchor Enlarged view of the joint between the anchor plate and the connector A diagram showing the change in which the anchor plate becomes horizontal in the ground Example of rear end of connecting body with adjustment part Example of push-in jig (not shown) Example of anchor plate with posture guide Illustration showing an example of the use of pull-out resistance anchors Diagram showing an example of a pipe house frame and an example of a screw pile A diagram showing a rotating disk-shaped anchor shown in a conventional example (Patent Document 4)

The present invention is a pull-out resistance anchor used in a simple structure such as a greenhouse for cultivation, which is an anchor plate that is inserted into the soil in a state facing the insertion direction and exhibits a large resistance by changing its posture in the horizontal direction. , an anchor plate and a connecting body that connects to a simple structure on the ground. In addition, a jig for pushing the anchor plate into the soil is provided.
The anchor plate has a plate-like shape with a pointed tip, and has a convex portion on the center line of the plate toward the tip. , a joint with the connecting body, and an attitude change biasing function. The rear edge of the anchor plate is basically straight, and may be provided with an engagement portion with a pushing jig or a posture guide portion.
Since the anchor plate is a flat plate and may be bent and pushed into the soil, a convex portion is provided on the back to improve straightness. A hole for connecting the connector is provided in this convex portion. When the anchor plate is pushed in and pulled up, a lifting force is applied to the hole away from the center line of the anchor plate, so a moment corresponding to the distance is applied, and the rear edge of the anchor plate is changed in the horizontal direction. energized. Also, the hole is preferably provided near the center of the anchor plate so that the connector and the anchor plate are stabilized in the perpendicular direction.
The push-in jig is a jig that pushes the rear edge of the anchor plate to penetrate the anchor plate into the soil to a predetermined depth. The pushing jig can hold the anchor plate stably by providing a claw or the like for restraining the rear edge of the anchor plate. By shortening the claws on the back side, it is possible to exert a restraining function when changing the posture of the anchor plate in the horizontal direction.
The pull-out resistant anchors of the present invention exhibit greater pull-out resistance than conventional screw anchors and helical piles. The number of anchors to be installed is smaller than that of conventional anchors in the initial stage of construction of a simple structure or in the case of temporary response when strong winds are expected. In particular, it demonstrates its ability as a reinforcement measure against emergency wind damage.
An embodiment will be described below with reference to the drawings.

(Embodiment 1)
1, 2, and 3 show a pull-out resistance anchor 10 having a pentagonal anchor plate 1 and a bar-shaped connector 2 having the same "P" shape at the leading end and the trailing end. As for the basic shape of the anchor plate, if the tip is sharp, it will easily stick into the soil and the resistance will be small. The disk easily bends left and right due to the resistance of the soil, and is difficult to install at a predetermined insertion position, making it unsuitable for buildings such as cultivation facilities.
FIG. 1(a) is an overall view, and FIG. 1(b) shows a joint portion 31 between the anchor plate 1 and the connecting body when the connecting body 2 is pulled up. FIG. 2 shows a perspective view (a) of the anchor plate 1, a plan view (b) of the anchor plate 1, and a plan view (c) of the connector 2. FIG. FIG. 3 shows the tip 22 of the anchor plate 1 and the connecting body 2 (a), and shows the joint state of the anchor plate 1 and the tip 22 of the connecting body 2 (b).

The anchor plate 1 is a pentagonal plate-like body in a plan view, and a convex portion 3 is provided along the central line from a point where the tip of the tip side 11 is pointed. A hole 33 is formed in the middle of the convex portion 3 . It is preferable that the hole 33 is formed slightly toward the tip side from the center of the center of gravity where the anchor plate 1 becomes horizontal when pulled up. This is because when the anchor plate 1 becomes horizontal in the soil and a lifting force is applied, the anchor plate does not move back and forth, so that the vector does not work back and forth.
Since there is a rising distance h between the main body of the anchor plate 1 and the hole 33, when the anchor body 1 inserted in the soil is pulled up by the connecting body 2, a bending moment acts for the distance, and the anchor plate 1 moves horizontally. force to change to

FIG. 1(a) shows an example of a separate type in which the anchor plate 1 and the connecting body 2 are separable. The connecting body 2 shown in FIG. 2(c) shows an example in which annular portions are formed at the front end and the rear end of a round bar. That is, an annular portion 24 is formed at a front end portion 22 and a rear end portion 23, and a linear shaft portion 21 is formed at an intermediate portion. In this example, the front end portion and the rear end portion have the same shape, but they may have different shapes. In this example, the annulus is not closed but is open. This is because, as shown in FIG. 3(a), the opening width of the opening 25 existing in the annular portion 24 is equal to the wall thickness between the hole 33 provided in the convex portion 3 of the anchor plate 1 and the upper side 35. It is larger than 35d, and the connecting body 2 and the anchor plate 1 can be separated and used in combination on site. This has the advantage that it is more compact if the anchor plate 1 and the connecting body 2 are stored separately, and that the connecting body 2 of a required length can be combined and used according to the site conditions. By providing a plurality of different sizes of anchor plates and different lengths of connecting bodies as separate bodies, it is possible to use them in appropriate combinations on site.
In addition, the annular portion provided at the distal end portion 22 of the connecting body 2 can be closed so that the anchor plate 1 and the connecting body 2 can be integrated.
In addition, since the connecting body 2 has a function of resisting the pull applied to the simple structure, it can be a rope or a chain in addition to the rod-like body.

FIG. 4 schematically shows a state in which the anchor plate 1 inserted into the ground changes its posture horizontally.
(a) shows the initial posture in which the anchor plate 1 is inserted and faces the vertical direction in the ground. When the connecting body 2 is pulled upward by a force F from this state, the hole 33 where the force F acts is shown. Since the rear edge 12 of the anchor plate 1, which resists pulling up, is separated, the anchor body 1 inclines as the connecting body 1 is pulled up, and the connecting body 2 and the anchor body 1, which have the greatest resistance, are perpendicular to each other. become a relationship. (b) shows an inclined state in the middle, and (c) shows a state in which the anchor body 1 is horizontal.
Although the illustrated example shows a state in which the anchor plate 1 is inserted vertically into the ground, it may be inserted obliquely to attach the connector 2 obliquely. In that case, the anchor plate 1 assumes a posture that is substantially perpendicular to the connector 2 . Whether the anchor plate 1 is inserted vertically or inclined is determined according to the relationship between the portion of the simple construction to which the connector is attached and the portion where the anchor plate 1 can be installed.
For example, when an anchor plate 1 having a width of 10 cm, a length of 6 cm, and a convex portion 3 of a height of 3 cm is inserted into the ground by about 50 cm, the pull-out resistance is about 200 kg, and the pull-out strength is about 30% higher than that of the spiral pile. could be measured.

FIG. 5 shows an example in which a length adjusting portion is provided at the rear end portion of the connecting body 2. As shown in FIG.
In the illustrated example, the annular rear end portion 23 of the connecting body 2 is further provided with a turnbuckle as an adjustment portion 25 . The anchor plate 1 is inserted to a predetermined depth, but since the height of the rear end of the connector changes as the attitude changes, the attachment position to the simple structure can be adjusted by providing an adjusting portion. The adjuster is not limited to the turnbuckle.

An example of the pressing jig 5 is shown in FIG. (a) is an example of the pressing jig 5, showing an enlarged bottom surface below. (b) shows a pull-out resistance anchor showing only the anchor plate 1 without the connector. (c) shows a state in which the pushing jig 5 is set on the rear edge of the anchor plate 1. FIG.
The pressing jig 5 is a rod-shaped member, and has a claw portion 51 formed with an insertion groove 53 into which the rear edge portion of the anchor plate 1 can be inserted on the distal end side. The rear end portion serves as a pressing portion 52 to be struck with a mallet or the like, and may be expanded.
The claw portion 5 at the tip can be separately attached to the lower end of the pushing jig, but in this example, a "T"-shaped T-shaped insertion groove 53a or a cross-shaped insertion groove 53a is provided at the lower end of the pushing jig. An example in which a groove 53b is provided is shown. The rear edge portion 12 and the convex portion 3 of the anchor plate 1 are fitted into the groove (see FIG. 6(c)). In the state shown in FIG. 6(c), the anchor plate 1 is placed on the ground and driven into the ground to insert the anchor plate 1 at a desired position, and the pushing jig 5 is pulled out. The state is shown in FIG. 4(a), and then the posture of the anchor plate 1 is changed as shown in FIGS. 4(b) and 4(c).

FIG. 7 shows an example of an anchor plate 1 provided with a posture guide.
Small piece-shaped posture guide portions 14 are provided on the left and right sides of the rear edge portion 12 of the anchor plate 1 having the convex portion 3 provided along the center line. Posture guide portion 14 is provided so as to be inclined on the opposite side of convex portion 3, and as shown in FIG. It functions as a guide plate (rudder) that changes its attitude. As a result, the vertical anchor plate 1 is urged horizontally to stabilize its posture. In the example shown in FIG. 6, the posture guide portion 14 is not provided in the central portion of the rear edge portion 12 where the pushing jig 5 is set. A posture guide part can be provided on the side of the groove that is not bent.

FIG. 8 shows an example of using the pull-out resistant anchor 10 of the present invention.
In this example, a wire 110 is applied to a frame 120 constituting a pipe house of a simple structure 100 so as to prevent it from rising, and the left and right ends are ground level. A pull-out resistance anchor 10 is installed on the inside of the upright support since the wire is put inside the vinyl so as not to rub the covering vinyl.
The anchor plate 1 is inserted into the ground and placed in a horizontal position, the adjustment portion 25 provided at the rear end portion 23 of the connecting body 2 protruding above the ground is connected to the wire 110, the turnbuckle is tightened, and the wire Make 110 tense. The number of wires 110 to be provided is determined in consideration of the size of the simple structure, the strength of the wind, and the like.
In this example, an example in which a reinforcing wire is provided for emergency response is shown, but in addition to the wire, the screw pile attached to the foundation shown in FIG. 9 can be replaced or newly added. In addition, it can be applied to a place such as a post where it is necessary to suppress pull-out appropriately.

1 plate-like anchor plate 11 distal end side of anchor plate 12 rear edge portion 14 of anchor plate attitude guide portion 10 withdrawal resistance anchor 2 connecting body 22 distal end portion 23 of connecting body rear end portion 24 annular portion 25 opening 3 Convex part 31 for rectilinear guidance Joint part 33 with connecting body Hole 35 Upper side 35d Thickness 5 Pushing jig 51 Restraining claw part 52 Pressing part 53 Insertion groove 100 Simple structure 110 Wire 120 Framework

Claims (6)

A pull-out resistance anchor for a cultivation greenhouse comprising a plate-shaped anchor plate and a connector,
The anchor plate has a pointed tip, a rear edge that serves as a receiving part for the pushing jig, and a convex part for guiding straight movement provided on one surface from the tip to the rear end. The joint with the connecting body is formed in the part,
The connecting body has a front end joined near the center of the center of gravity of the anchor plate, a rear end having a joint with the ground member, the front end being separable from the convex portion ,
A pull-out resistance anchor, characterized in that the connection body and the central portion of the anchor plate have a joint structure in which rotation is free. The distal end of the connecting body is folded back to form an annular portion, and the annular portion is an open type with an interval between the anchor plates,
1. The convex portion of the anchor plate is a plate, has a hole for joining, and the thickness from the hole to the upper side is smaller than the interval between the anchor plates of the annular portion. Pull-out resistance anchor as described. 3. The pull-out resistance anchor according to claim 1, wherein the anchor plate is provided with a posture guide portion that bends in a direction opposite to the surface where the joining portion with the connector is located on the rear edge portion. The pull-out resistance anchor according to any one of claims 1 to 3 , wherein the connecting body is a rod-shaped body or a linear body, and is provided with a length adjusting portion on the rear end side. A pushing jig for pushing the pull-out resistance anchor according to any one of claims 1 to 4 into the ground, wherein the rear end side of the rod-shaped body is a pressing part, and the rear end side of the rod-shaped body is a plate-shaped body of the anchor. A pushing jig characterized by comprising a claw portion provided with a T-shaped insertion groove or a cross-shaped insertion groove for restraining an edge. A method of constructing a pull-out resistance anchor by using any one of the pull-out resistance anchors described in claims 1 to 4 and the pressing jig according to claim 5 , the method comprising:
Position the anchor plate of the pull-out resistance anchor along the foundation beam or support of the simple structure on the ground with the tip downward,
Install the pushing jig at the rear end of the anchor plate,
Push the rear end of the push-in jig to position the anchor plate deeper than the planned installation depth of the ground by a predetermined depth,
Pull out the pressing jig,
Pull up the connector to change the posture, adjust the posture of the anchor plate in the horizontal direction,
The construction process for connecting the foundation beams, struts or ropes of the simple structure and the rear end of the pull-out resistance anchor,
A method of installing a pull-out anchor, comprising:

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