JPH0913371A - Anchor - Google Patents

Abstract

PURPOSE: To efficiently drive an anchor by a method wherein a ring part is formed in the form of semicircular arc near one end of an anchor supporter bar and an end of the supporter bar on the side of the ring element, with respect to a connection support, is placed in an anchor body and a driving side end is made integral with an expansion resistant part. CONSTITUTION: A ring part 3 is formed near an end of an anchor supporter bar 1 so as to rise up in the form of a semicircular arc. An anchor body 2 comprises a single body including a driving side end 4 and an expansion resistant part 5 and a connection support 6 is provided at a predetermined point. When an anchor is driven into the ground, an end of the bar 1 on the side of the ring part 3 is inserted into a hollow part 7 of the part 4 to erect the bar 1 on the surface of the ground with the part 4 oriented downward. And by striking the upper end of the bar 1, the bar 1 is driven into the ground until the rear end thereof comes near the ground surface. And if the bar 1 is pulled up, a pair of right and left resistance plates 9a, 9b of the part 5 of the body 2 are subjected to the resistance of the ground and the support 6 slides along the inner side of the part 3 of the bar 1 and stops at the end of the part 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor that is used by being driven into the ground to fix a structure, such as a greenhouse, that must be directly installed on the ground, to the ground.

[0002]

2. Description of the Related Art As an anchor of this type, as shown in FIG. 9, there are two resistance plates 100 which are developed from left to right in a state of being superposed facing each other. It is known that the auxiliary rod 102 has a ring 101 provided at its upper end and is attached to the upper part of the resistance plate 100, and an up-drawing rod 104 having a ring 103 provided at its upper end is attached to the developing tip of the resistance plate 100. Has been. When the anchor is used, the anchor 1 is used by inserting it into the guide pipe 106 in which the notch 105 for inserting the resistance plate 100 in a state of being superposed on the tip end portion is formed, and the inside 106a of the guide pipe.
The accessory of the rod hammer 108 with 07 is used.

The actual driving operation by the above anchor is performed as follows. First, as shown in FIG. 10, after inserting the resistance plate 100 in a state of being superposed on the cut portion 105 of the guide pipe 106, the short rod side of the rod hammer 108 is inserted into the inside 106a of the guide pipe 106. Is set on the ground 109 with the resistance plate 100 facing downward, and is hit with a hammer 108 to drive the guide pipe 106 into the ground. Next, when the guide pipe 106 is driven to a predetermined depth, the rod hammer 108 is replaced from the short rod side to the long rod side provided with the pull-out hook 110 at the tip. Then, first, the replaced hammer is hit backwards so as to pull it up, and the pull-out hook 109 is hooked on the stepped portion inside the guide pipe 106 to pull up the guide pipe 106 by a predetermined amount (two-dot chain line in the figure). , Move to normal hammer operation. As a result, the resistance plate 100 is pulled out of the hook 109.
It is pushed out downwards by the start of deployment and the deployment begins with the rings 101, 10 at the tips of the two rods 102, 104.
It is completed when 3 gradually approaches and reaches the same height.
Finally, the rod hammer 108 is hit backwards to pull out the guide pipe 106 from the ground, thereby completing the driving operation.

In addition to this, as shown in FIG. 11, a driving-side tip portion 200 whose tip has a cross-shaped cross section is formed.
And insertion hole 201 for inserting the driving rod
Anchor main body 203 including a wedge-shaped resistance portion 202 provided with a ring, and an anchor cable 20 with a ring 204 attached to the central portion of the anchor main body 203.
Anchor composed of 5 and 5 is known. This anchor also uses a driving rod (206) as an accessory for its use.

In the operation of driving the anchor, as shown in FIG. 12, first, the insertion hole 20 of the anchor main body 203 is inserted.
The hammering rod 206 is inserted into the tool 1, the tip 200 on the hammering side is made to face downward, it stands on the ground 207, and the upper portion of the rod 206 is hammered by a hammer 208 (FIG. 12a). Then, when the ring 204 of the anchor cable 205 reaches the ground 207, the driving is stopped, and then the driving rod 206 is attached to the ring 20.
4 and pulling up the rod by the length of the anchor body with the tip of the rod applied to the support member 209 (FIG. 12b). As a result, the anchor body 203 is rotated and fixed in the ground as shown in FIG. 12b, and the driving operation is completed.

[0006]

However, in each of the above-mentioned conventional anchors, a dedicated accessory must be supplementarily used during the driving operation, and the handling and storage thereof are troublesome. Moreover, it is necessary to make full use of these accessories in various procedures and forms as described above during the driving operation, and the driving operation itself is complicated and inefficient.

[0007] Therefore, an object of the present invention is to provide an anchor which does not require an accessory for the driving operation and can perform the driving operation easily and efficiently.

[0008]

In order to achieve the above object, the anchor of the present invention comprises an anchor support rod having a ring portion which rises in a semi-circular arc shape in the vicinity of one tip portion and has an opening formed inside thereof. , An anchor main body that is attached so as to rotate within a range from a substantially parallel state to an orthogonal state with respect to the anchor support rod around a connecting column inserted into the opening of the ring portion of the anchor support rod. An anchor, wherein the anchor body is accommodated by inserting the ring portion side tip portion of the anchor support rod into one side of the connecting column, and the ring portion side tip portion of the anchor body is abutted. A driving-side tip having a tapered outer shape with a hollow portion that restricts the range of rotation, and a pair of left and right resistance plates that expand on the opposite side to form a V-shaped groove And a rising resistance in the expanding direction of the pair of left and right resistance plates in the expanding resistance part is different from each other on the left and right sides. To do.

This anchor is used by being driven into the ground and fixed, and its use is as follows.
Use as anchors for fixing various agricultural facilities such as greenhouses and fruit shelves, and as anchors for fixing various structures and articles such as earth retaining concrete, tents, street trees, and scaffolds to the surface of the earth. You can

[0010]

When the anchor of the present invention is driven, the tip of the anchor support rod is inserted into the hollow portion of the tip side of the anchor side of the anchor body to make the anchor body parallel to the anchor support rod. Standing on the ground,
After hitting the rear end of the anchor support rod with a hammer or the like to drive part of the anchor support rod and the anchor body into the ground, the anchor support rod may be pulled up a little. As a result, the anchor body is pivoted and fixed in the ground until it becomes substantially vertical to the anchor support rod.

Therefore, according to the present invention, the anchor driving operation can be performed very easily and efficiently without using a special accessory. In addition, since the rising height of the resistance plate in the expansion resistance part in the expansion resistance part of the anchor main body is different on the left and right, when the anchor support rod is pulled up, the anchor main body surely rotates and is fixed in the ground. It

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

1 to 3 show an anchor according to an embodiment of the present invention, FIG. 1 is a perspective view showing the entire structure thereof, and FIG. 2 is an enlarged view showing the tip end portion of the anchor support rod.
FIG. 3 is various views showing the anchor body.

The anchor in this embodiment, as shown in FIG. 1, is a cylindrical metal anchor support rod 1 having a predetermined length, and the tip end side of the anchor support rod 1 is rotated within a predetermined range. And an anchor body 2 made of metal that is attached as described above.

As shown in FIGS. 1 and 2, the anchor support rod 1 is provided with a ring portion 3 formed so as to stand up in a semi-circular shape near its tip. A half-moon shaped opening 3a is formed inside the ring portion 3.
The shape of the opening 3a is not particularly limited to this, but at least when the below-mentioned connecting column of the anchor body 2 pulls up the anchor support rod 1 during the driving operation, the support rod extends along the inner side of the ring portion 3. It is preferable that the opening end portion where 1 and the ring portion 3 intersect has a circular arc portion that is easy to move. In addition, a wire ring 20 used when connecting an article to be fixed to the ground surface is provided at the rear end (upper end) of the anchor support rod 1 as necessary.
Instead of the wire ring 20, the rear end of the anchor support rod may be formed into a ring shape in advance.

On the other hand, as shown in FIGS. 1 and 3, the anchor main body 2 has an integrated structure including a driving-side tip portion 4 and an expansion resistance portion 5, and the driving-side tip portion 4 is formed. A connecting column 6 used for attachment to the anchor support rod 1 is provided at a predetermined position which is an approximately intermediate point between the portion 4 and the expansion resistance portion 5. The anchor main body 2 is rotatably attached to the anchor support rod 1 by inserting the connecting column 6 into the opening 3 a of the ring portion 3 of the anchor support rod 1 so as to be inserted thereinto.

The above-mentioned driving-side tip portion 4 has a tapered outer appearance, and has a hollow portion 7 having the following spatial shape. That is, the hollow portion 7 can be inserted and accommodated in the tip end portion of the anchor support rod 1 on the side where the ring portion 3 is provided (see FIG. 4), and moreover, the tip end portion of the anchor support rod 1 on the ring portion side. Can contact with each other to regulate the rotation range of the anchor body 2 (particularly, the rotation when the anchor body 2 is maintained in a substantially vertical state with respect to the anchor support rod 1) (FIG. 6).
(Refer to FIG. 3).

In this embodiment, in the hollow portion 7, the tip of the anchor support rod 1 is inserted to such an extent that a part of the ring portion 3 is exposed at the same time when the connecting column 6 is in contact with the inside of the ring portion 3. It is shaped like In addition, the tip end of the anchor support rod 1 hits a space shape portion (7a in FIG. 3b) that is sharply narrowed inward when the anchor body 2 is turned, and the turning operation is stopped. It has become. Reference numeral 8 in FIGS. 3b and 3c indicates a molded ridge portion in which the space of the hollow portion 7 is narrowed inward.

Therefore, the anchor main body 2 is provided with the driving-side tip portion 4 having such a hollow portion 7, so that the tip end portion of the anchor support rod 1 on the ring portion side is hollow as shown in FIG. When it is inserted into 7, it becomes almost parallel to the anchor support rod 1, and when the anchor body 2 is rotated around the connecting column 6, as shown in FIG. Movement is restricted and anchor support rod 1
It is designed to rotate until it becomes almost vertical with respect to.

Further, as shown in FIG. 3, the expansion resistance portion 5 has a pair of left and right resistances which taperly extend from a portion opposite to the position of the connecting column 6 behind the driving-side tip portion 4. The plates 9a and 9b are provided with a V-shaped groove 10 between the resistance plates.
(See FIG. 3c) is formed so as to be expanded to the left and right so as to be formed. Moreover, a pair of left and right resistive plate 9a of the expanded resistor section 5, 9b is rising height h _a to its expanding direction, and a h _b at different phases.

In this embodiment, the rising heights h _a and h _b of the resistance plates 9a and 9b are set so as to satisfy the relationship of " _ha <h _b ", but the opposite relationships may be set. You may set it. Resistive plate 9a, the rise height h _a of 9b, h _b is appropriately set. Further, in this embodiment, the resistance plate 9a,
Since the rise height h _a of 9b, a difference of _{h b S (= h b -h} a) is as substantially constant, even the end of the resistance plate becomes the difference (S) shifted form ing. Further, in this embodiment, the resistance plate 9a having a low rising height has a greater degree of outward spreading than the resistance plate 9b, so that the resistance by the ground can be more (larger) received.

In the anchor body 2 in this embodiment, for example, a sheet of metal material having a pointed portion 4 in which a hollow portion 7 is formed and an expansion resistance portion 5 in which a resistance plate is modeled is bent at a predetermined position, and its By welding and joining parts of the pointed portions 4 that are bent and opposed to each other, and by attaching the connecting support column 6 to the upper portion of the rear end side of the pointed portions 4 (while inserting them into the ring portion opening of the anchor support rod). Can be made. The method for manufacturing the anchor body 2 is not limited to the above method.

The anchor having such a structure is driven and fixed in the ground as follows.

First, as shown in FIG. 4, the front end of the anchor support rod 1 on the ring side is inserted into the hollow part 7 of the tip side 4 on the driving side.
Then, the anchor main body 2 is inserted into the anchor support rod 1 so that the anchor main body 2 is substantially parallel to the anchor support rod 1, and then the tip portion 4 of the anchor main body 2 is directed downward to stand on the ground surface 12. Next, as shown in FIG. 7A, the anchor main body 2 is driven into the ground together with the anchor support rod 1 by hitting the rear end (upper end) of the anchor support rod 1 in the upright state with a hammer or the like. At this time, since the driving-side tip portion 4 is tapered and pointed, the anchor body 2 can be driven very easily.

Then, as shown in FIG. 7B, the above-mentioned driving is completed after the rear end of the anchor supporting rod 1 approaches the ground surface 12, and then the anchor supporting rod 1 is pulled upward. .

By pulling up the anchor support rod 1,
First, as shown in FIG. 5, in the anchor body 2, the pair of left and right resistance plates 9a and 9b in which the expansion resistance portion 5 expands receives resistance from the ground, and the connecting support column 6 causes the anchor support rod 1 to move.
Slide inside the ring portion 3 and stop at the tip of the ring portion. As a result, the anchor support rod 1 is pulled out from the hollow portion 7 of the pointed portion 4 by the amount corresponding to the slide of the connecting column 6, and the expansion resistance portion 5 of the anchor main body 2 is pulled out.
Is slightly separated from the state shown by the two-dot chain line in FIG. 5 (the state shown by the solid line), the contact portions of the resistance plates 9a and 9b with the ground are increased, and the resistance plates 9a and 9b are more resistant to the ground. It becomes easy to receive.

Subsequently, when the anchor support rod 1 is pulled up, the anchor body 2 rotates in the direction of the arrow A about the connecting column 6 with the expansion resistance portion 5 left behind in the ground. Get started. Then, as shown in FIG. 6, the tip end portion of the anchor support rod 1 on the ring portion side comes into contact with the hollow portion 7 (the narrowed space-shaped portion 7a) of the pointed portion 4 so that the rotational movement is restricted. The anchor body 2 is kept substantially parallel to the anchor support rod 1, and is firmly fixed in the ground in this state.

In this anchor, the heights h _a and h _b in the rising direction of the resistance plates 9a and 9b in the expansion resistance portion 5 are different on the left and right, so when the anchor support rod 1 is pulled up, the anchor body 2 is Be sure to start rotating in the direction of arrow A. On the other hand, according to an experiment by the present inventor, when the heights h _a and h _b of the resistance plates 9a and 9b in the expansion resistance portion 5 in the rising direction are the same and aligned, how to pull up the anchor support rod It has been confirmed that the anchor body 2 does not rotate due to differences in conditions such as geology and geology, and is pulled up without being fixed in the ground. Further, as described above, since the expansion resistance portion 5 of the anchor body 2 is slightly separated from the anchor support rod 1 immediately after pulling up the anchor support rod 1 as described above (FIG. 5), this also results in the anchor. The body 2 is designed so that the body 2 can easily start rotating reliably.

FIG. 8 shows a state in which this anchor is used as a fixing anchor for a greenhouse.
That is, after fixing a plurality of anchors at predetermined ground positions where the vinyl house 30 is installed, the anchor members 3 are attached to the wire ring 20 attached to the upper end of the anchor support rod 1, for example.
Assemble the greenhouse 30 through 1. As a result, the frame member 31 is fixed by the plurality of anchors fixed in the ground, so that the greenhouse 30 is firmly installed on the ground surface.

[0030]

As described above, the anchor of the present invention has no accessories for driving operation, and is easy to handle and store, and the anchoring operation is simple and efficient without using special accessories. Can be done well. In particular, since the rising height of the resistance plate in the expansion resistance portion of the anchor main body in the expansion direction is different on the left and right, when the anchor support rod is pulled up, the anchor main body is reliably rotated and fixed in the ground. Therefore, the driving operation can be performed more reliably and efficiently without causing failure or incompleteness of the driving operation. In addition, this anchor has a simple structure and does not require accessories for driving work,
It can be provided at a low price.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of an anchor according to an embodiment of the present invention.

FIG. 2 is an enlarged view showing a tip end portion of the anchor support rod of FIG.

FIG. 3 shows the anchor body of FIG. 1, (a) is a front view, (b) is a top view thereof, and (c) is CC of (a).
FIG.

FIG. 4 is an explanatory view showing a state where an anchor support rod is inserted into a hollow portion of an anchor body.

FIG. 5 is an explanatory diagram showing a behavior (displacement) state of the anchor main body immediately after the anchor support rod is pulled up.

FIG. 6 is an explanatory view showing a state in which the anchor body is restricted in rotation and is substantially vertical to the anchor support rod.

FIG. 7 shows a step of driving the anchor, (a) is an explanatory view showing a state during driving, (b)
FIG. 7 is an explanatory view showing a state in which the anchor main body is rotated by pulling up the anchor support rod.

FIG. 8 is an explanatory diagram showing a state in which the anchor is used as a fixing anchor for a greenhouse.

FIG. 9 is a perspective view showing an example of a conventional anchor.

FIG. 10 is an explanatory view showing a driving operation state of the conventional anchor of FIG.

FIG. 11 is a perspective view showing another example of a conventional anchor.

FIG. 12 is an explanatory view showing a driving operation state of the conventional anchor of FIG.

[Explanation of symbols]

1 ... anchor support rod, 2 ... anchor body, 3 ... ring unit, destination apex for 4 ... driving, 5 ... expanding resistance unit, 6 ... strut, 7 ... hollow portion, 9a, 9b ... resistive plate, h _a , H _b … Rise height in the expansion direction.

Claims (1)

[Claims] 1. An anchor support rod having a ring portion that rises in the shape of a semi-circular arc near one of the tip portions and has an opening formed inside thereof, and a connecting column centered around a ring support opening of the anchor support rod. And an anchor main body that is attached so as to rotate within a range from a substantially parallel state to an orthogonal state with respect to the anchor support rod. To
The tip side of the anchor support rod on the ring side is inserted and accommodated, and the tip side on the ring side abuts, and has a hollow portion with a shape that restricts the rotation range of the anchor body. It has an integral structure including a pointed tip portion and a spreading resistance portion on the opposite side of which a pair of left and right resistance plates are spread so as to form a V-shaped groove. An anchor characterized in that the rising heights of the pair of left and right resistance plates in the expansion portion in the expansion direction are different on the left and right.