JPS61261518A - Pile - Google Patents

Abstract

PURPOSE:To bury and fix a pile under the ground by a simple operation by providing an upper link-fitting part, a lower link-fitting part, a link mechanism to rotatably connect the ends of the upper and lower links, and a cut-in plate. CONSTITUTION:A cut-in plate 10 for a pile, under a condition that links 6 and 8 are in a folded state, has a minimum area, and a leg 3 is thrust through the bottom face of a pit 18 for stopping the rotation of the whole of the pile. When the pile body 1 is turned, an upper link-fitting part 5 moves downwards and comes near a lower link-fitting part 2. Upper and lower links 8 and 6 become expanded, and the plate 10 slides sideways and cuts into the inner wall of the pit 18. The pile can thus be buried and fixed to the pit of a minimum size by simple operations, and the coming-off of the pile can be prevented exactly.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial Field of Application) This invention relates to a stake used to hold a utility pole or the like in an upright position.

(Prior Art) Conventionally, as this type of pile, for example, as shown in Fig. 7,
Some piles have a structure in which the pile main body 20 is made of a rod-shaped wood or the like, and a pull-out prevention member 21 made of concrete or the like is attached to the lower end of the pile main body 20.

When using this stake to hold the utility pole 22 in an upright state, after digging a large hole, insert the stake body 22 into the hole.
, and a removal prevention member 21 was inserted and buried, and a wire rope 23 was hung between the upper end of the pile body 20 and the utility pole 22.

(Problem to be solved by the invention) However, in this case, there is a problem in that it requires a great deal of effort to dig a large hole and insert and bury the pile into the hole, reducing work efficiency. there were.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a pile that can be buried and fixed in the ground with a simple operation without requiring much labor, and that can be reliably prevented from being pulled out.

Structure of the Invention (Means for Solving Problems) The present invention includes a pile body 1 that is inserted into a hole drilled in the ground and has a male threaded portion 1a at the bottom thereof, and a pile body 1 that is inserted through the pile body 1, an upper link attachment member 5 and a lower link attachment member 2, at least one of which is screwed to the male threaded portion 1a; an upper link 8 connected to the upper link attachment member 5 at its upper end so as to be relatively rotatable; and a lower link 6 connected to the lower link attachment member 2 so as to be relatively rotatable, and both the links 6
．． A link mechanism rotatably connects the other ends of the links 6 and 8 to each other, and a sinking plate 10 that moves in response to the movement of the link mechanism and sinks into the inner wall of the hole is provided at the connecting portion of both the links 6 and 8. A structure is adopted in which the bite plate 10 is provided with a protrusion 10a parallel to the direction of movement thereof.

(Function) The present invention operates as follows by employing the above configuration.

A pile with a folded link mechanism is inserted into a predetermined hole dug in the ground, and the lower end of the pile body is locked and fixed to the bottom wall of the hole, so that the bite plate and the link mechanism are rendered non-rotatable.

Next, the pile body is rotated in a predetermined direction by grasping the upper end of the pile body, and the link mounting member screwed into the male threaded portion of the pile body is moved along the male threaded portion to bring the upper and lower link mounting members close to each other. When the link mechanism is in the folded state, it becomes in the unfolded state. At this time, the push-in plate connected to one end of both the upper and lower links is projected outward from the pile body as the link mechanism is expanded, and is inserted into the inner wall of the hole. The engagement plate has a contact surface with earth and sand enlarged by the ridges, and its strength against bending force in the vertical direction is increased, so that it is firmly embedded into the inner wall of the hole. Therefore, the pile is firmly anchored in the ground by the sinking plate, and is buried and fixed in the ground against strong pulling force.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to FIGS. 1 to 5.

Reference numeral 1 denotes a pile main body, in which a male threaded portion 1a is formed in the lower half of the dowel, and a ring portion 1b on which a wire lobe or the like can be hung is formed at the upper end. Reference numeral 2 denotes a lower link attachment member in the form of a rectangular parallelepiped.
It is mounted so as to be relatively rotatable at a predetermined position with respect to the non-threaded portion IC adjacent to a. A pair of legs 3 with pointed tips are attached to the lower link attachment member 2 facing downward. Reference numeral 4 designates a locking member that is fastened to the lower end of the pile main body 1 with a screw (not shown) to prevent the lower link attachment member 2 from coming off. Reference numeral 5 denotes an upper link attachment member screwed onto the upper part of the male threaded portion 1a of the pile body 1.

Reference numeral 6 designates lower links rotatably connected to symmetrical positions near both ends of the lower link attachment member 2 by pins 7.7. Reference numeral 8 designates an upper link rotatably connected to symmetrical positions near both ends of the upper link attachment member 5 by pins 9.9. Reference numeral 10 denotes a pair of wedge plates made of planar pentagonal plates stacked one on top of the other, and as shown in FIG. 4, a protrusion 10a is press-formed in the center.

A transparent groove 10b is provided in the protruding portion 10a from the center of the dowel to one end, and the pile body l is provided in the transparent groove 10b.
is inserted. Reference numeral 11 denotes a cylindrical member that is inserted into the male threaded portion 1a of the pile body 1 so as to be movable in the axial direction and fitted into the through groove 10b. Upper and lower pressing members 12.13 are welded to each other so that the two biting plates 10.10 cannot be separated from each other and cannot be twisted.

14a and 14b are pin receiving members welded to corresponding positions on the upper and lower surfaces of the protruding portion 10a of the upper biting plate 10, respectively, and the lower end of the upper link 8 is attached to the pin receiving member 14a.
The upper ends of the lower links 6 are rotatably connected to the pin receiving member 14b by pins 15 and 16, respectively. 17
Numerals a and 17b are pin receiving members similarly welded to the lower biting plate 10, and one ends of the upper and lower links 8.6, respectively, are rotatably connected by pins 15.16. Pair of upper and lower links 8.6
constitutes a link mechanism for moving the bite plate 10.10 as a whole.

Next, a method of using the pile configured as described above will be explained.

As shown in FIG. 2, the upper link mounting member 5 is positioned in advance near the upper end of the male threaded portion 1a, and the four links 6.8
Both biting plates of the pile in the folded state 10.1
0, as shown in FIG. 4, the entire structure is superimposed vertically and the spread of area in the lateral direction is minimum. Insert the pile in the above state into a hole 18 dug in the ground with a minimum size that allows the pile to pass through, and stick the legs 3 into the bottom of the hole 18 to prevent the entire shaft from turning. conduct.

Next, a rod or the like (not shown) is inserted into the hole in the ring portion 1b of the pile body 1, and the pile body 1 is rotated using the rod as a handle.

At this time, the upper and lower link mounting members 5゜2, the upper and lower links 8 and 6, and the bite plates io and io
are each prevented from rotating by legs 3. Therefore, the pile body 1
When the upper link mounting member 5 is rotated, the upper link mounting member 5 is moved downward by the rotation of the male threaded portion 1a, and the upper and lower link mounting members 5.2 are brought closer to each other. Then, the connection points of the upper and lower links 8, 6, that is, the bottle receiving members 14a, 14b, 17a, 17b, are pushed outward, and the upper and lower links 8.6 are expanded as shown in FIG. state. As a result, both bite plates 10.10
are slid in the horizontal direction, that is, in the direction in which they are separated from each other in a vertically overlapping state, and as shown in FIG.

In both of the biting plates 10.10, the protrusions 10a enlarge the surface of contact with the earth and sand to reliably catch the earth and sand, and the protrusions 10a increase the strength of the biting plate 10 against vertical bending stress. As a result, it is firmly inserted into the inner wall surface of the hole. Therefore, even with such a simple operation, the stake is reliably locked and fixed in the hole 18.

Thereafter, by tying a wire rope for fixing a telephone pole or the like to the hole of the ring portion 1b of the pile main body l, it is possible to support and fix the telephone pole or the like.

Moreover, this invention can also be implemented as follows.

(1) As shown in FIG. 6, the legs 3 may be omitted or the upper and lower links 8.6 may be one each.

(2) The pile main body 1 can be divided at its longitudinal intermediate portion.

(3) The bite plate 10 and the bottle receiving members 14a, 14b,
17a and 17b are integrally formed.

(4) The upper and lower halves of the male threaded portion 1a of the pile body 1 are formed to have opposite threads, and the upper and lower link attachment members 5.2 are formed into the upper and lower halves of the male threaded portion 1a, respectively. Attach by screwing together the halves.

Effects of the Invention As detailed above, this invention allows the minimum number of holes to be drilled,
Since the pile can be buried and fixed with a simple operation, labor is reduced and work efficiency is improved, and furthermore, an excellent pile that can be reliably prevented from being pulled out can be provided.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a vertical sectional view taken along the line X-X in FIG. 1, and FIG. Line longitudinal cross-sectional view, Figure 4 is the 1st
FIG. 5 is a cross-sectional view taken along the Y-Y line of FIG. 1 showing the usage state of the embodiment of this invention, and FIG. 6 is a longitudinal sectional view showing another example of this invention. , FIG. 7 is an explanatory diagram showing the prior art. DESCRIPTION OF SYMBOLS 1...Pile body, 1a...Male thread part, 2...Lower link attachment member, 5...Upper link attachment member, 6...
Lower link, 8... Upper link, 10... Biting plate, 10a... Projection portion.

Claims (1)

[Claims] 1. A pile body (1) that is inserted into a hole drilled in the ground and has a male threaded portion (1a) at its lower part, and the pile body (1).
1), and at least one of which is screwed into the male threaded portion (1a), an upper link attachment member (5) and a lower link attachment member (2), and an upper end that rotates relative to the upper link attachment member (5). It is constituted by an upper link (8) that is movably connected to each other, and a lower link (6) that is also relatively rotatably connected to the lower link attachment member (2) at its lower end, and both of the links (6, 8) A link mechanism rotatably connecting the other ends to each other is provided, and the connecting portion of both the links (6, 8) is provided with a link mechanism that moves in accordance with the movement of the link mechanism and sinks into the inner wall of the hole. While attaching the biting plate (10), the biting plate (10) is attached.
A pile characterized in that 0) is provided with a protrusion (10a) parallel to the direction of movement thereof. 2. The pile according to claim 1, wherein the biting plates (10) are configured as a pair of two plates. 3 The two biting plates (10, 10) move in opposite directions while overlapping with each other by the link mechanism, and the upper and lower sides of the two biting plates (10, 10) are supported by pressing members (12, 1).
3) The second claim that is inseparably controlled by
Piles as described in Section. 4. The pile according to claim 1, wherein the pile body (1) has legs (3) at its lower part.