JP2018109315A - Pull-out device and method for support pillar or pile part of which is inserted and fixed in ground - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly efficient and low-cost support pillar or pile pull-out device and a pull-out method therefor which enable the pillar or pile to be pulled out from the ground easily and in a short time while having a simple structure.SOLUTION: A pull-out device for a supporting pillar or pile 100 is composed of one chain main body portion 2, an annular guide member 5 having a closed space portion 51 provided at one end portion 3 thereof, and a support pillar or pile 100 pull-out chain member 1 constituted by at least two lifting chain connecting means 6, 7 attached to the chain main body portion 2 and individual lifting chains 8, 9 connected to the respective lifting chain connecting means 6, 7.SELECTED DRAWING: Figure 1

Description

  The present invention provides a guard plate or guard fence such as a guard rail, guard pipe, guard cable arranged along a roadway, a danger prevention fence arranged for prevention of crossing arranged along a human road, or a guide fence or Made of metal or synthetic resin that is partly embedded and fixed in the ground, such as underground, concrete or asphalt road surface or ordinary ground to support the regulation fences, etc. This is related to a pulling device and a pulling method for pulling a supporting column or an appropriate pile, and further a column or the like attached to an emergency telephone arranged on the shoulder of an expressway. The support strut in which a portion including a predetermined length including the tip portion is inserted and fixed firmly and firmly in the ground, and an appropriate one including a regulation pile Relates drawing method easily and in a short time enables the pulled out efficiently with high efficiency in extraction apparatus and support struts or piles of such low-cost support posts or piles or the like or the like.

  Furthermore, in the present invention, there is no sufficient space area around an appropriate pile including the support column or the restriction pile to be pulled out, or there is no road or other space area for a large vehicle to enter in a mountainous area. Even in such a case, it is possible to easily access a predetermined support strut or an appropriate pile existing location to be pulled out easily and efficiently in a short time while having a simple configuration. It is possible to provide a high-efficiency and low-cost extraction device such as a support column or a pile, and a method for extracting the support column or a pile, which enables the extraction of the column.

Conventionally, as a device for pulling out the above-mentioned support struts or piles or a method for pulling them out, generally, for example, as disclosed in JP-A-7-259037 (Patent Document 1) and the like The chuck means using an appropriate powerful electromagnetic, mechanical or hydraulic mechanism is attached to the apex of the support post or pile, and the chuck means for gripping the top end of the support post or pile is provided. There is known a method of pulling out discussion support columns or piles at once using an appropriate crane mounted on a crane vehicle.
However, in order to smoothly perform such a method, the surface of the ground on which a part of the support column or the pile is buried, in particular, the ground surface paved with a paving material such as concrete or asphalt, is manually applied in advance. To the depth, it is necessary to remove the concrete and stone in the lower part of the ground surface, or use an appropriate vibration device separately, and use the pull-out operation while giving vibration to the support column or pile etc. The process is complicated, the danger to workers is high, and the work efficiency is reduced, so there is a disadvantage that the cost is high, and the use of large vehicles is indispensable. I had to say that this is an unsuitable method of withdrawal for certain areas.

On the other hand, as a method for pulling down the support strut or pile that has been downsized without using the crane equipment of the crane vehicle, the chuck means that holds the top end of the support strut or pile or the like is used as a hydraulic jack device. A method of using and lifting and pulling out the support column or pile from the ground is known. However, even with such a pulling method, it is necessary to use a vehicle equipped with a hydraulic pressure generator. A similar problem existed.
In order to improve the disadvantages of these well-known techniques, the pulling device is downsized, the pulling operation of the support struts or piles, etc. is simplified, in addition to improving work efficiency and reducing costs, the support to be pulled out. Various techniques have been developed for the purpose of relaxing the conditions of existing parts such as columns or piles.

For example, in Japanese Utility Model Publication No. 57-22543 (Patent Document 2), cylinder portions that are driven with appropriate high-pressure water are arranged on both sides of the support column or pile to be pulled out, and the support column or pile or the like. The support is provided by engaging one end portion of an appropriate piston portion built in the cylinder portion with an extraction frame body portion of an annular body fixed to the top, and raising the piston portion with the high-pressure water. An apparatus for pulling out a column or a pile from the ground is disclosed.

Although this technology can be reduced in size and weight as much as it does not use a large, complicated and heavy weight chuck part, it handles high pressure water, so it is necessary to transport the high pressure water generator by vehicle, Since the whole system becomes complicated, there are few economic merits, and the extraction operation in a narrow space still has limitations.
In Japanese Utility Model Publication No. 46-29023 (Patent Document 3), a pair of appropriately miniaturized hydraulic drive jack means are arranged on both sides of the support column or pile to be pulled out, and the support column or A part of the pull-out pin portion fixed to a part of the pile or the like is joined and fixed to the top of each jack means, and the support means to be pulled out or the pile is pulled up from the ground by raising the jack means. An apparatus is disclosed.

However, the technique disclosed in Patent Document 3 is not a technique for extracting the entire support column or pile to be extracted from the ground, but the support to be extracted at the initial stage of the extraction operation. After slightly lifting upward the portion buried in the ground at the lower end of the support column or pile, etc., after appropriately reducing the frictional force between the lower end portion of the support support column or pile and the earth and sand, the support support column or Engage the hook part of the crane separately mounted on the crane truck with the appropriate connecting ring joined to the apex part of the pile etc., and pull the whole support strut or pile etc. from the ground with the crane. Something to pull out.
Therefore, the above-mentioned drawbacks of the prior art still remain.

Further, Japanese Patent Application Laid-Open No. 2003-253637 (Patent Document 4) discloses lifting of a long support strut or pile formed in a U shape so as to surround the support strut or pile to be pulled out. The plates are arranged close to each other, and the upper ends of the support columns or piles are fixed to the lifting plate via an appropriate connecting member such as a rod member, and are appropriately reduced in size to the lower end of the lifting plate. A pair of hydraulically driven jack means is disposed, and the support struts or the pistons of the jack means extending downward from the jack means or the appropriate rod part connected to the piston part are pushed by the ground. An apparatus for lifting a pile or the like from the ground is disclosed.
However, in the drawing device, it is necessary to use the tip of the crane separately mounted on the crane vehicle in order to vertically hold the lifting plate with respect to the ground, and because it is hydraulically driven. In addition, since the hydraulic drive equipment mounted on the movable crane vehicle is required, some of the merits can be seen, but the above-mentioned drawbacks of the prior art still remain.

Further, JP-A-2005-105773 (Patent Document 5) arranges a pair of appropriately miniaturized manual hydraulic drive jack means on both sides of the support column or pile to be pulled out, and the jack means. At the same time, the rising plate portion is fixedly disposed at the tip of the piston portion on the rising side, and at the same time, a part of the rising plate portion and the apex vicinity portion of the support column or pile to be pulled out are connected and fixed manually. Discloses a technique for pulling out the support column or the pile from the ground in accordance with the rise of the piston portion in the hydraulic drive jack means.
Although this technique is advantageous in that it is downsized and does not select the place of use, it is not suitable for pulling out large support columns or piles, and it takes a considerable amount of time to perform the pulling out operation. There is a drawback of not.

Furthermore, the disadvantages common to each of the above-mentioned patent documents are based on the premise that an appropriate number of openings through which the rod-shaped connecting member penetrates are provided in the support struts or piles. It is necessary to provide a plurality of receiving holes for the rod-shaped connecting member for connection with the support column or pile, and the pulling operation cannot be performed with the support column or pile without the opening. There is a big problem.

Therefore, even if there is not enough space area around the appropriate pile including the support column or regulation pile to be pulled out, or even if there is no road or other space area for large vehicles to enter in the mountainous area There is no need to select a region, and there is no restriction on the structure of the support column or pile, and it is possible to easily and efficiently pull out the column or pile while having a simple configuration. Therefore, there is a demand for the development of a drawing apparatus such as a high-efficiency and low-cost support column or pile and a drawing method thereof.

JP-A-7-259037 Japanese Utility Model Publication No. 57-22543 Japanese Utility Model Publication No. 46-29023 JP 2003-253637 A JP 2005-105773 A

  Accordingly, an object of the present invention is to provide a risk prevention fence or a guard plate or a guide fence or a guide fence including a one-way restriction etc. To support fixedly, metal or synthetic resin support struts or appropriate piles that are partly embedded and fixed in the concrete or asphalt road surface or ordinary ground, etc. Furthermore, road surfaces that are concrete or asphalt paved with guard rails, guard pipes, guard cables, regulated piles, etc., arranged along various roadways including the shoulders of the expressway or the middle of the shoulders, etc. Metal or synthetic resin support columns or appropriate piles, some of which are embedded and fixed in the ground, etc. In particular, the present invention relates to a pulling device for pulling out a post or the like that is attached to an emergency telephone that is arranged in the middle of a shoulder on an expressway, etc., and its pulling method, and in particular, its tip is firmly and firmly in the ground. High-efficiency and low-cost enabling easy and efficient extraction of appropriate support struts, such as support struts that are inserted and fixed, including parts with a predetermined length, and regulated piles. The present invention relates to a pulling-out device for the support struts or piles and a method for pulling out the support struts or piles.

Furthermore, the object of the present invention is to improve the above-mentioned defects of the prior art, and when a sufficient space area does not exist around an appropriate pile including the support post or the control pile to be pulled out, or a large vehicle is used in a mountainous area. Even if there is no road or other space area to enter, it is not necessary to select the operation area, and it is possible to access the location of the predetermined support column or appropriate pile that should be easily pulled out. In addition, there is no restriction on the structure of the support strut or pile, etc., yet it has a simple configuration, and it is highly efficient that allows the strut or pile to be pulled out easily and efficiently in a short time. The present invention provides a pull-out device for a low-cost support column or pile and a drawing method thereof, and pulls out the column or pile easily and efficiently in a short time while having a simple configuration. Drawing methods such as withdrawing apparatus and support struts or piles of low cost and the like of the support posts or stakes with high efficiency to allow is to provide.

In order to achieve the above object, the present invention basically employs the following technical configuration.

  That is, the first invention according to the present invention basically includes a single chain body having a predetermined length and one end of the chain body. An annular guide member having a closed space portion that can freely pass through a free end formed at the other end of the chain body main body, and one of the chain body main portions provided with the annular guide member Each of at least two portions on the chain body part, with a predetermined interval between each other along the direction of the free end part which is the other end part of the chain body part from the end part of the chain body A support strut or a pile pull-out chain member composed of a lifting chain connecting means provided on the lifting chain and an individual lifting chain connected to the lifting chain connecting means. Support struts or pile pullout devices that are inserted and fixed in the ground In addition, the second invention according to the present invention has a cylinder portion and a long internal cylindrical space portion that is provided in the cylinder portion and can penetrate the chain body portion, and is hydraulic. From the one open end of the piston portion in the hollow jack member composed of a hollow piston portion configured to slide along the longitudinal axis direction, the support column according to claim 1 or The leading end portion of the chain main body portion constituting the pile pull-out chain member and a part of the chain body main body portion continuous therewith are pulled out through the closed space portion of the annular guide member, and Insert the free end after the closed loop is formed in the chain body and a part of the chain body connected to the free end, and the free end drawn from the other open end of the piston and the free end Part of the chain body part Is configured to be fixedly locked to a part of the hollow piston portion via an appropriate stopper member, and by sliding the hollow piston portion along the longitudinal axis direction, A support strut or a pile pulling device characterized in that the inner diameter of the closed loop formed in the chain body part is reduced.

Further, as a third invention according to the present invention, basically, the main body portion is provided at one end of the chain body main body and one chain body main body having a predetermined length. An annular guide member having a closed space that can freely pass through a free end formed at the other end of the chain body, and the chain provided with the annular guide member At least two points on the chain body part with a predetermined interval from one end part of the body body part to the free end part which is the other end part of the chain body part. A supporting strut pull-out chain member comprising a lifting chain connecting means provided at each of the parts and an individual lifting chain connected to the individual lifting chain connecting means Preparing the first step,
A chain fastening means comprising a hollow hydraulic cylinder means held inside the main body is prepared so that the hollow tubular piston means can slide in the longitudinal direction of the piston means by hydraulic pressure. The second step,
A third step of preparing a manual hydraulic pump means for repeatedly supplying a predetermined amount of pressurized oil to the hollow hydraulic cylinder means in order to drive the hollow hydraulic cylinder means in the chain tightening means;
A fourth step of connecting the manual hydraulic pump means and the chain tightening means with an appropriate oil feed pipe means;
A fifth step of selecting a support column or pile that is partially inserted and fixed in the ground to be pulled out;
A sixth step of winding the chain body part at least once around the outer peripheral surface part in the vicinity of the site of contact with the selected support column or the ground surface of the pile;
The free end portion of the chain body portion and a part of the chain body portion continuous therewith are passed through the closed annular opening in the annular guide member and drawn from there, and the chain body portion A seventh step of performing an operation so as to form a closed loop along the outer peripheral surface of the support column or the pile, at least in part;
The free end portion of the chain body portion drawn out from the closed annular opening and a part of the chain body portion connected to the free end portion of the hollow tubular piston portion means provided in the hollow hydraulic cylinder are provided. The hollow tubular piston portion is inserted into the hollow tube from the end, and the free end portion of the chain body portion and a part of the chain body portion continuous therewith are passed through the hollow tubular piston portion means. An eighth step of performing the operation so as to be discharged from the other end of the means;
The hollow piston part means or the cylinder is connected to the free end part drawn out from the other open end part of the piston part means and a part of the chain body part connected to the free end part via an appropriate stopper member. A ninth step of fixing and locking to a part of the part,
By sliding the hollow piston part means along the longitudinal axis direction, the inner diameter of the closed loop formed in the chain body part is reduced, and the chain body part is attached to the support column. A tenth step of performing an operation of pressing strongly against the outer peripheral surface;
Respectively attachable to and detachable from appropriate hook means provided at the free end of each lifting chain connected to at least two lifting chain connecting means provided on the chain body. A pair of vertically movable movable members connected to a connecting frame portion including a hook member that can be coupled and fixed, jack means including a pair of jack members, and appropriate hydraulic pump means for driving the jack means An eleventh step to prepare,
Appropriate hook means provided at each of the free ends of at least two lifting chains connected to the lifting chain connecting means provided at a part of the chain body part, A twelfth step of individually coupling and coupling with the hook member provided on the coupling frame portion of the jacking means;
After connecting the jacking means and the hydraulic pump means via a connecting means such as an appropriate oil pipe means, the movable member in the jacking means is gradually moved upward using the appropriate driving means. A thirteenth step of performing an operation of moving and pulling out the support column or the pile inserted and fixed in the ground;
The 14th of releasing the chain body part is released by releasing the binding state of the chain binding means, relaxing the joint state between the closed loop formed on the chain body part and the support column or the pile. The process of
A fifteenth step that repeats the sixth to fourteenth steps a plurality of times, if necessary,
A sixteenth step of detaching the support column or pile from the ground surface;
It is a support strut or a pile extraction method in which a part thereof is inserted and fixed in the ground, which is characterized in that it is configured by.

  The support strut or pile pull-out chain member and the support strut or pile pull-out method according to the present invention adopt the above-described configuration, thereby improving the above-described deficiencies of the prior art and the support strut to be pulled out. Or even if there is not enough space around the appropriate pile including the regulated pile, or there is no road or other space area for large vehicles to enter in the mountainous area, there is no need to select the operation area. In addition, there is no restriction on the structure of the support strut or pile, etc., yet it has a simple configuration, and it is highly efficient that allows the strut or pile to be pulled out easily and efficiently in a short time. A low-cost drawing device such as a support column or a pile and a drawing method thereof can be obtained.

FIG. 1 (A) is a view showing an example of the configuration of a chain body part used in the pulling device such as the support column or pile according to the present invention, and FIG. It is a perspective view which shows the state which the chain body main-body part forms the closed loop in the outer peripheral surface of the support support | pillar or pile which should be pulled out. FIG. 2 is a diagram showing an example of the structure of the chain binding means 10 according to the present invention and a specific example of its usage. Drawing 3 is a figure explaining the example of composition of the extraction device of the support post or pile including the jack means used with the extraction device of the support post or pile concerning the present invention, and the use situation.

The configuration of a specific example of the support strut or pile pull-out chain member and the support strut or pile pull-out device according to the present invention will be described in detail below with reference to the drawings.
That is, FIG. 1 (A) shows the configuration of a specific example of the support strut or pile pull-out chain member 1 used in the pull-out device for the support strut or pile 100 according to the first invention of the present invention. It is a figure, Comprising: One chain body part 2 which has predetermined | prescribed length in the figure, The said chain body part 2 provided in one edge part 3 of the said chain body part 2 An annular guide member 5 having a closed space 51 that can freely pass through a free end 4 ′ formed at the other end 4, and the chain body 2 provided with the annular guide member 5. On the chain body part 2 with a predetermined distance from each other along the direction from the one end part 3 to the free end part 4 'which is the other end part 4 of the chain body part 2 Lifting chain connecting means 6, 7 provided at each of at least two parts, and the individual lifting members Support struts or stakes, part of which are inserted and fixed in the ground, characterized in that they are composed of individual lifting chains 8 and 9 connected to the chain connecting means 6 and 7 A pulling device for a supporting column or pile 100 comprising 100 pulling chain members 1 is shown.

By the way, the material of the chain part 2 constituting the support strut or the pulling chain member 1 of the pile 100 according to the present invention is not particularly limited, and if it is composed of a known metal material, Any material may be used, and in particular, the chain portion 2 using a material having high rigidity and tensile strength is desirable.
Further, the length L0 in the longitudinal direction of the pull-out chain member 1 of the support column or pile 100 according to the present invention is not particularly limited, and the cross-section of the support column or pile 100 that is the object of the extraction operation. It can be appropriately determined according to the size of the diameter, and is preferably about 60 cm to 100 cm, for example.

On the other hand, in the chain member 1 for pulling out the support column or pile 100 according to the present invention, one end 3 of the chain body 2 is connected to the other end of the chain body 2. An annular guide member 5 having a closed space 51 having an area sufficient to allow a free end 4 ′ formed in 4 and a part of the chain body 2 connected to the free end 4 ′ to freely pass therethrough is provided. At the same time, along the direction from one end 3 of the chain body 2 where the annular guide member 5 is provided to the free end 4 ′ which is the other end 4 of the chain body 2. The first lifting chain connecting means 6 and the second lifting chain connecting means 7 are provided at each of at least two portions on the chain main body 2 with a predetermined interval therebetween. They are provided in this order.

The material, size, shape and the like of the annular guide member 5 used in the present invention are not particularly limited, and a metal material or a synthetic resin material having high rigidity and tensile strength as described above is used. On the other hand, the material, size, shape, etc. of the first and the lifting chain connecting means 6 and the second lifting chain connecting means 7 used in the present invention are particularly limited. Instead, it is possible to use a metal material or a synthetic resin material having high rigidity and tensile strength as described above.
Further, the material and length of the lifting chains 8 and 9 used in the present invention are not particularly limited, and are composed of a metal material having high rigidity and tensile strength as described above. It is a preferable specific example.
Further, the free ends of the lifting chains 8 and 9 used in the present invention are engaged with appropriate hook members 203 and 204 provided on appropriate jack means 200 as described later. It is also a desirable specific example that hook means 81 and 91 having appropriate shapes can be attached.

On the other hand, in one specific example of the present invention, first, the distance L1 between the chain body portion 2 and the first lifting chain connecting means 6 is, for example, the support to be subjected to the pulling operation. It is desirable to set the length to 1/4 of the outer peripheral length calculated from the cross-sectional diameter of the column or pile 100, and between the first and second lifting chain connecting means 6 and 7 The interval L2 is a specific example that is preferably set to a length that is ½ of the outer peripheral length calculated from the cross-sectional diameter of the support column or the pile 100.

Here, if an example of an actual usage method of the chain body portion 2 in the present invention is described, as shown in FIG. 1 (B), the outer peripheral surface of the support column or pile 100 to be pulled out. The chain body part 2 is wound so as to be surrounded at least once, and then the free end part 4 ′ of the chain body part 2 and a part of the chain body part 2 connected thereto are By pulling through the closed space 51 provided in the annular guide member 5 provided at one end 3 of the chain body 2, the pull-out operation is performed on the chain body 2. The closed loop portion 52 is formed so as to surround the support column or the pile 100 that is the target of the above.

In the present invention, the closed loop portion 52 constituted by the chain body main body 2 is tightened by using the appropriate chain binding means 10. The closed loop portion 52 configured by the chain body portion 2 is strongly bound to the outer peripheral surface of the support column or the pile 100 to be the object of the pulling operation, and is configured by the chain body portion 2. The closed loop portion 52 and the support column or pile 100 are integrated and fixed.
Although the structure of the chain binding means 10 used in the present invention is not particularly limited, as will be described later, a cylinder incorporating a hollow piston portion 12 so as to be slidable in the central axis direction P. It is desirable to use a so-called hollow jack means 10 consisting of a portion 11 and designed to drive the piston portion 12 hydraulically.
The chain binding means 10 is preferably small and light and capable of exerting a strong binding force. For example, “Hollow Jack” (EC30S6 etc.) manufactured and sold by Osaka Jack Mfg. Co., Ltd. This is a specific example that is desirable to use.

In the first aspect of the invention, the chain binding means 10 receives the hydraulic power from the appropriate hydraulic pump means 22 via the appropriate oil pipe 14 and realizes the binding body. It is desirable that the hydraulic pump means 22 is also small and light, and is portable and capable of exhibiting such an ability that a strong binding force is applied to the hollow jack means 10.
Although the specific configuration of the hydraulic pump means 22 in the present invention is not particularly specified, for example, “manual hydraulic pump” (TWA-0.3 manufactured and sold by Osaka Jack Mfg. Co., Ltd.). Etc.) is a preferred example.

Thereafter, the tight binding function of the chain binding means 10 is exerted so that the closed loop portion 52 formed by surrounding the support strut or pile 100 to be pulled out is firmly pressed against the outer peripheral surface of the support strut or pile 100. After fixing, as shown in FIG. 3, a pair of lifting chain bodies 8, 9 provided on an appropriate chain body part 2 can be freely connected to the distal ends of the lifting chain bodies 8, 9. Via the hook members 81 and 91 provided at the end portions, the two provided at the upper end portions of the jack means 301 and 302 that are erected in parallel with each other. By engaging and joining with locking means 203 and 204 arranged on a part of the connecting frame 200 that can be moved up and down, the jack means 301 and 302 are sequentially raised, so that the support struts to be pulled out or 100, is raised together with the Kusaritai body portion 2 and the chain bondage means 10, will be going pulling the support posts or stakes 100 gradually from the ground.

On the other hand, in the present invention, the position when the chain body part 2 is wound around the outer peripheral surface portion of the support column or pile 100 is not particularly specified, but preferably the support column or pile 100 is the ground surface. Wrapping around the part that is in contact with.

Next, the configuration of a specific example relating to the second aspect of the present invention will be described in more detail with reference to FIGS.
That is, FIG. 2 shows that the support strut or pile 100 pull-out member constituting the support strut or pile 100 pulling-out device according to the second invention of the present invention basically includes the cylinder portion 11 and The piston portion in the hollow jack member 10 which is the binding means including the hollow piston portion 12 having the space portion 13 and configured to slide along the longitudinal axis direction P by hydraulic pressure. The tip of the free end 4 ′ of the chain body 2 constituting the pull-out chain member 1 of the support strut or pile 100 defined in the first invention described above from one open end 15 of 12 The part 4 and a part 41 of the chain body part connected to the part 4 are inserted into the closed space part 51 of the annular guide member 5, penetrated therethrough and drawn out from the chain body part 2. 52 after forming 52 The free end 4 ′ and a part of the chain body 41 connected to the free end 4 ′ are inserted, the free end 4 ′ drawn from the other open end 16 of the piston 12 and the chain body connected to the free end 4 ′. The portion 41 is configured to be fixedly locked to the portion 16 of the hollow piston portion 12 via an appropriate stopper member 53, and the hollow piston portion 12 is arranged in the longitudinal axis direction. The support strut or pile pull-out chain member 1 is configured to reduce the inner diameter of the closed loop 52 formed by the chain body main body 2 by sliding along P. It is.

In the present invention, as described above, it is preferable that the hollow jack member 10 is connected to the manual hydraulic pump means 22 via an appropriate oil pipe 14.
In addition, as described above, the support column or pile pulling-out device according to the present invention has the chain body 2 and the hollow internal space 13, and slides along the longitudinal axis direction P thereof. Hydraulic chain member retracting means comprising a piston part 12 configured to be movable and a linder part 11, that is, the chain binding means 10, the free end 4 ′ of the chain body 2, or the chain subsequent thereto A stopper means 53 for engaging and fixing a part of the chain member of the body main body 2 to a part of the piston part 13 and a hydraulic chain member drawing means 10 can be detachably connected via the oil pipe 14. It is also a preferable specific example that it is configured with the configured manual hydraulic pump 22.

The stopper means 53 used in the present invention is not particularly specified with respect to its material, size, shape, etc. For example, as shown in FIG. It may be made of a material and have a shape having a protrusion 56 that can be removably inserted into the chain annular portion space 55 of the chain body main body 2.
Furthermore, the supporting column or pile pulling-out device according to the present invention is provided with individual lifting chains connected to at least two lifting chain connecting means 6 and 7 provided on the chain body 2. It is also preferable that a jack means 200 that can be moved up and down is included, which has a connecting frame portion 500 including hook means 203 and 204 that can be detachably coupled to the free ends 81 and 91 of the chain members 8 and 9, respectively. It is a specific example.

By the way, the configuration of the jacking means 200 used in the present invention is not particularly limited. Preferably, the jacking means 200 is small, lightweight, portable, and has a function of exerting strong driving power. Although it is desirable that it be a thing, it is needless to say that in some cases, it may have a structure that can be mounted on a small vehicle such as a light truck and moved.
FIG. 3 shows a configuration example of one specific example of the jack means 200 that can be used in the present invention. In the figure, on both sides of the support column or pile 100 to be pulled out, A pair of jack members 301 and 302 erected in the vertical direction in parallel with each other are arranged, and the first movable member 401 and the second movable member 402 fitted to the jack members 301 and 302 are arranged. Individual lifting links connected to at least two lifting chain connecting means 6, 7 provided on the chain body 2 on the connecting frame 500 connecting the upper ends 411 and 412. A structure provided with hook means 203 and 204 that can be detachably coupled and fixed to the free ends 81 and 91 of the chain members 8 and 9 is one of the preferred embodiments, and the connection frame portion. 00, the pair of jack members 301 and 302 for example, by vertically moving hydraulically, a specific example is preferably configured so as to integrally move up and down.

Therefore, it is desirable that the jack members 301 and 302 are connected to each other via hydraulic pump means 220 configured as appropriate and oil pipes 501 and 502 as appropriate.
Further, it is desirable that the hydraulic pump means 220 in this specific example is also portable and is small and lightweight. However, when strong hydraulic power is desired, for example, a small truck such as a light truck can be used. Needless to say, it may have a configuration that can be mounted on a vehicle and moved.

Furthermore, in this invention, it has the structure by which the through-hole part 530 with the appropriate | suitable magnitude | size which can pass the said support post | stretch | pulled or the said pull-out | pulled | pulled out or the tip part of the pile 100 is provided. It may be a thing.
That is, in the present invention, using the fact that the coefficient of friction between the metal chain member and the support column or pile 100 mainly made of metal is large, the chain body portion 2 is simply attached to the chain body portion 2. The support strut or pile 100 is easily wound only once on the outer peripheral surface of the support strut or pile 100, and is simple, light and small by the small binding means 10 only by the chain body portion 2. It can be pulled out efficiently at low cost.

Further, in the present invention, the chain body 2 and the support column or pile 100 are firmly joined and fixed only by the operation of winding the chain body 2 around the outer peripheral surface of the support column or pile 100. Therefore, as in the conventional example described above, an opening necessary for engaging and fixing the support column or pile 100 with the jack means is provided on the support column or pile. Since it is not necessary to provide a plurality of parts in the part, it is possible to easily cope with any shape of support pillars or piles 100.

On the other hand, in the pull-out device for the support column or pile 100 including the chain body portion 2 in the present invention, oil is sequentially supplied from the hydraulic pump 220 and the jacks in the jack means are used. While the members 301 and 302 are gradually moved upward, the connecting frame portion 530 is also simultaneously moved upward, so that the support column or pile 100 is gradually brought into the ground via the lifting chains 8 and 9. It will be pulled out from.

Thereafter, after a part of the support strut or part of the pile 100 buried in the ground is pulled out, the lifting operation of the jack members 301 and 302 is temporarily stopped, and the binding function of the binding means 10 is stopped. The chain body 2 formed in the closed loop shape is released from the surface of the support strut or pile 100, and the portion still in contact with the ground surface of the support strut or pile 100, that is, Pulling of the support strut or pile 100 The operation of pulling out the part still remaining in the ground of the support strut or pile 100 is executed, and this operation is repeated until all of the support strut or pile 100 is pulled out from the ground. Will be.
Of course, in the present invention, it goes without saying that the support column or pile 100 can be completely pulled out by executing the above-described operation once.
Moreover, the said support | pillar or pile 100 pulled out by this invention is conveyed to an appropriate place using human power or a small crane apparatus.

Next, the configuration of a specific example of the support column or pile drawing method according to the third aspect of the present invention will be described.
That is, as a method of pulling out the support column or pile 100 according to the present invention, basically, the main body portion has a single chain body portion 2 having a predetermined length, and the chain body body portion 2. An annular guide member having a closed space portion 51 that can be freely penetrated through a free end portion 4 ′ formed at the other end portion 4 of the chain body portion 2, provided at one end portion 3 of the main body 2. 5 and the direction from the one end 3 of the chain body 2 where the annular guide member 5 is provided to the free end 4 ′ that is the other end 4 of the chain body 2. The lifting chain connecting means 6 and 7 provided at each of at least two portions on the chain body main body 2 with a predetermined interval therebetween, and the individual lifting chains Supporting support composed of individual lifting chains 8, 9 connected to the connecting means 6, 7 First step of preparing a drawing for chain member 1,

Chain tightening composed of hollow hydraulic cylinder means 11 held inside the main body so that the hollow tubular piston means 12 can slide in the longitudinal direction P of the piston means 12 by hydraulic pressure. A second step of preparing means 10;
In order to drive the hollow hydraulic cylinder means 11 of the chain tightening means 10, a third manual hydraulic pump means 22 is provided that repeatedly supplies a predetermined amount of pressurized oil to the hollow hydraulic cylinder means 11. Process,
A fourth step of connecting the manual hydraulic pump means 11 and the chain tightening means 10 with an appropriate oil feed pipe means 14;
A fifth step of selecting a support column or pile 100, a part of which is inserted and fixed in the ground, to be pulled out;
A sixth step of winding the chain body portion at least once around the outer peripheral surface portion in the vicinity of the portion in contact with the ground surface of the selected support column;
The free end portion 4 ′ of the chain body portion 2 and a part 41 of the chain body portion 2 connected to the free end portion 4 ′ are passed through the closed annular opening 51 in the annular guide member 5 and from there. A seventh step of performing an operation so as to form a closed loop 52 along the outer peripheral surface of the support column or the pile 100 in at least a part of the pullout body part 2;

The free end portion 4 ′ of the chain body main body 2 drawn out from the closed annular opening 51 and a part 41 of the chain body main body connected to the free end 4 ′ are connected to the hollow hydraulic cylinder means 11 of the chain tightening means 10. Is inserted into the hollow tube interior 13 from one end 15 of the hollow tubular piston part means 12 provided on the free end 4 'of the chain body 2 and the chain body connected to it. An eighth step of performing an operation so that the part 41 is discharged from the other end 16 of the hollow tubular piston part means 12 after passing through the hollow tubular piston part means 12;
The free end portion 4 ′ drawn out from the other open end portion 16 of the piston portion means 12 and a part of the portion 41 of the chain body portion connected to the free end portion 4 ′ are connected to the chain tightening via an appropriate stopper member 53. A ninth step of fixing and locking to the hollow piston portion means 12 or a part of the cylinder means 11 in the attaching means 10;
By sliding the hollow piston part means 12 along the longitudinal axis direction P, the inner diameter of the closed loop 52 formed in the chain body part 2 is reduced, and the chain body part 2 A tenth step of performing an operation of strongly pressing the support strut or the outer peripheral surface of the pile 100

Appropriately provided at the free ends of the individual lifting chains 8, 9 connected to at least two lifting chains connecting means 6, 7 provided on the chain body 2. A pair of vertically movable movable members 401 and 402 connected to the hook means 81 and 91 and a connecting frame portion 500 including hook members 203 and 204 that can be detachably coupled to each other; and a pair of jack members 301 and 302; An eleventh step of preparing a jack means 200 including a driving means such as an appropriate hydraulic pump means 220 for driving the jack means 200;
Provided in each of the free ends of at least two lifting chains 8 and 9 connected to the lifting chain connecting means 6 and 7 provided in a part of the chain body 2. A twelfth step of individually connecting and connecting the appropriate hook means 81 and 91 to the hook members 203 and 204 provided on the connection frame portion 500 of the jack means 200,
After connecting the jacking means 200 and the hydraulic pump means 220 via connecting means such as appropriate oil pipe means 501 and 502, the jacking means 200 in the jacking means 200 uses the appropriate driving means 220. A thirteenth step of gradually moving the movable members 401 and 402 upward and performing an operation of pulling out the support column or pile 100 inserted and fixed in the ground;
Release the binding state of the chain binding means 10, relax the joint state between the closed loop portion 52 formed in the chain body portion 2 and the support column or pile 100, and A fourteenth step of lowering,
A fifteenth step that repeats the sixth to fourteenth steps a plurality of times, if necessary,
A sixteenth step of detaching the support column or pile 100 from the ground surface;
It is a support strut or a pile extraction method in which a part thereof is inserted and fixed in the ground, which is characterized in that it is configured by.

DESCRIPTION OF SYMBOLS 1 ... Chain member 2 for pulling support pillar or pile ... Chain body part 3 ... One end part 4 of chain body part ... Other end part 4 'of chain body part ... Free end part 5 ... Circular guide member 6 , 7 ... Lifting chain connecting means 8, 9 ... Lifting chain body 10 ... Hollow jack means 11 ... Cylinder portion 11
DESCRIPTION OF SYMBOLS 12 ... Hollow piston part 14 ... Oil pipe 22 ... Hydraulic pump means 15 ... One end part 16 of hollow piston part ... The other part 41 of hollow piston part ... The said chain body main part 51 connected to a free end part ... Closed space 52 ... Closed loop 53 ... Stopper member 56 ... Protrusions 81, 91 ... Hook means 100 ... Support column or pile 200 ... Jack means 203, 204 ... Hook member 220 ... Hydraulic pump means 301, 302 ... Jack Means 401 ... first movable member 402 ... second movable member 500 ... connection frame portion 501, 502 ... oil pipe 530 ... through hole portion

Claims (6)

  A single chain body having a predetermined length, and a free end formed at the other end of the chain body, provided at one end of the chain body An annular guide member having a closed space that can freely pass through, and a free end that is the other end of the chain body from the one end of the chain body provided with the annular guide member Lifting chain connecting means provided at each of at least two locations on the chain body main body, with a predetermined distance between each other along the direction of the end, and the individual lifting A support strut or pile pulling device which is inserted and fixed in the ground, characterized by using a pulling chain member composed of individual lifting chains coupled to the chain coupling means.   A cylinder part and a long internal cylindrical space part that can penetrate the chain body part provided in the cylinder part, and so as to slide along the longitudinal axis direction by hydraulic pressure The freedom of the chain body part constituting the support strut or the pile pull-out chain member according to claim 1 from one open end of the piston part in a hollow jack member composed of a configured hollow piston part. The free end after the leading end portion of the end portion and a part of the chain body portion continuous therewith are pulled out through the closed space portion of the annular guide member to form a closed loop in the chain body portion Part and a part of the chain body part connected to the free end part drawn out from the other open end of the piston part and a part of the part of the chain body part connected to the free end part. Through the member The closure body is formed so as to be fixedly locked to a part of the piston portion, and the chain body portion is formed by sliding the hollow piston portion along its longitudinal axis direction. A support strut or pile drawing device characterized by being configured to reduce the inner diameter of the loop.   3. The support column pulling-out apparatus according to claim 2, wherein the hollow jack member is connected to manual hydraulic pump means.   The chain member defined by claim 1, a hydraulic chain having a hollow internal space and having a built-in piston portion slidable along the longitudinal axis direction and comprising a linder portion It comprises a member retracting means, a stopper means for engaging and fixing the chain member to a part of the piston portion, and a manual hydraulic pump configured to be detachably connectable to the hydraulic chain member retracting means. Support strut or pile extraction device characterized by things.   The support column pulling-out device defined by claim 1 further includes individual lifting chains connected to at least two lifting chain connecting means provided on the chain body. 5. A support column or pile pulling-out device according to claim 4, further comprising a frame means including a hook means that can be detachably coupled to and attached to the free end of the jack. . The main body portion is formed at one end of the chain body main body having a predetermined length and the other end of the chain body main body provided at one end of the chain body main body. An annular guide member having a closed space portion that can freely pass through the free end portion, and the other end of the chain body portion from one end portion of the chain body portion provided with the annular guide member The lifting chain connecting means provided at each of at least two sites on the chain main body part, with a predetermined interval between each other along the direction of the free end that is the part, and A first step of preparing a support strut pull-out chain member composed of the individual lifting chains connected to the individual lifting chain connecting means;
First, a chain binding means 10 is prepared which comprises a hollow hydraulic cylinder means held inside the main body so that the hollow tubular piston means can slide in the longitudinal direction of the piston means by hydraulic pressure. 2 steps,
A third step of preparing a manual hydraulic pump means for repeatedly supplying a predetermined amount of pressurized oil to the chain binding means 10 in order to drive the hollow hydraulic cylinder means in the chain binding means 10;
A fourth step of connecting the manual hydraulic pump means and the chain binding means 10 with an appropriate oil feed pipe means;
A fifth step of selecting a support column or pile that is partially inserted and fixed in the ground to be pulled out;
A sixth step of winding the chain body portion at least once around the outer peripheral surface portion in the vicinity of the portion in contact with the ground surface of the selected support column;
The free end portion of the chain body portion and a part of the chain body portion continuous therewith are passed through the closed annular opening in the annular guide member and drawn from there, and the chain body portion A seventh step of performing an operation so as to form a closed loop along the outer peripheral surface of the support column, at least in part;
One of the hollow tubular piston part means provided in the hollow hydraulic cylinder means is connected to the free end part of the chain body part drawn out from the closed annular opening and a part of the chain body part connected thereto. After inserting the free end portion of the chain body main body portion and a part of the chain body main body portion connected to the free end portion of the chain body portion into the hollow tubular piston portion means, An eighth step of performing an operation so as to be discharged from the other end of the piston means;
A part of the hollow piston part means is connected to a part of the free end part drawn out from the other open end part of the piston part means and a part of the chain body part connected to the free end part via an appropriate stopper member. A ninth step of fixing and locking to
By sliding the hollow piston part means along the longitudinal axis direction, the inner diameter of the closed loop formed in the chain body part is reduced, and the chain body part is attached to the support column. A tenth step of performing an operation of pressing strongly against the outer peripheral surface;
Respectively attachable to and detachable from appropriate hook means provided at the free end of each lifting chain connected to at least two lifting chain connecting means provided on the chain body. A pair of vertically movable movable members connected to a connecting frame portion including a hook member that can be coupled and fixed, jack means including a pair of jack members, and appropriate hydraulic pump means for driving the jack means An eleventh step to prepare,
Appropriate hook means provided at each of the free ends of at least two lifting chains connected to the lifting chain connecting means provided at a part of the chain body part, A twelfth step of individually coupling and coupling with the hook member provided on the coupling frame portion of the jacking means;
After connecting the jacking means and the hydraulic pump means via a connecting means such as an appropriate oil pipe means, the movable member in the jacking means is gradually moved upward using the appropriate driving means. A thirteenth step of performing an operation of moving and pulling out the support column or the pile inserted and fixed in the ground;
The 14th of releasing the chain body part is released by releasing the binding state of the chain binding means, relaxing the joint state between the closed loop formed on the chain body part and the support column or the pile. The process of
A fifteenth step that repeats the sixth to fourteenth steps a plurality of times, if necessary,
A sixteenth step of detaching the support column or pile from the ground surface;
A support strut or pile drawing method in which a part thereof is inserted and fixed in the ground.

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