JPS5928700B2 - Pile press-in device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for press-fitting materials into the ground with extremely low noise and vibration.

Since the problem of pollution has become a hot topic, various types of press-fitting devices have been considered that produce low noise and vibration.

However, with these devices, it is necessary to use a large crane truck to move the device even when press-fitting the piles one after another.
The scope of its use was limited by the space and height restrictions in which the crane truck could be used.

The purpose of this invention is that after arriving at the construction site, there is no need to use a trailer or large crane truck (only a small crane is used to supply piles to the equipment, so it can be used in relatively narrow spaces). It can be used not only for passing through places with height restrictions, but also for use in such places, and even on uneven places or slopes, it is possible to correct the tilt of the device, and it can be used continuously (
To provide a pile press-fitting device capable of moving vertically and horizontally with its own blade to the next pile press-fitting position.

In order to achieve the above object, the stake press-fitting device of the present invention includes: a base having a main frame arranged substantially horizontally; a gripper capable of gripping and releasing the stake; attached to the main frame, the gripper a gripper elevating mechanism for elevating and lowering; outriggers connected to both ends of the base that protrude in opposite directions substantially perpendicular to the direction in which the main frame extends, that is, the longitudinal direction, and substantially horizontally; an extension mechanism that individually extends and contracts the outriggers in the vertical direction from the main frame; and a lateral movement mechanism that is provided on the outriggers and that individually moves the legs in a horizontal direction substantially perpendicular to the vertical direction. ; a leg length adjustment mechanism provided on the outrigger to individually adjust the length of the membrane; a reaction force absorption mechanism provided in the main frame to absorb floating reaction force acting on the main frame during pile press-fitting; This occurs due to the difference between the position where the pile is press-fitted and the position where the reaction force absorption mechanism acts on the main frame. By appropriately driving the mechanism, the lateral movement mechanism, and the lateral movement mechanism, it is possible to move appropriate distances in the vertical and lateral directions and press-fit the piles in sequence.

If the pile press-fitting device having the above configuration is used, not only can the pile be press-fitted almost noiselessly and without vibration since no impact is used for driving the pile, but it can also move vertically and horizontally by itself when press-fitting the pile. (During press-fitting work, it is possible to perform press-fitting work by simply using a small crane that sequentially supplies the piles to the equipment without the aid of a large crane truck, etc.) Since it can be expanded and contracted up and down, even if the work place is on uneven ground such as a slope or uneven surface, it is difficult to correct and hold the device almost horizontally, allowing you to continue serious work.Moreover, it is equipped with a reaction force absorption mechanism and By using a loose force absorption mechanism,
This allows for extremely strong and stable pile press-fitting.

Further, in a preferred embodiment of the present invention, the lateral movement mechanism,
Since a means for adjusting the positions of the leg length adjustment mechanism and the loose force absorption mechanism in a stepwise manner is provided, the range of use can be further expanded even on the above-mentioned uneven ground.

Further, in a preferred embodiment of the present invention, a plurality of hydraulic jacks for raising and lowering the gripper, the above-mentioned grippers, and the above-mentioned reaction force absorbing biters are provided, and by using an appropriate number according to the work content, it is possible to optimize the gripper according to the land situation. can perform various tasks.

According to another preferred embodiment of the present invention, a plurality of the grippers are held within the lifting mechanism and are formed so that a plurality of connected stakes can be press-fitted at the same time.

Furthermore, in a preferred embodiment of the present invention, a plurality of grippers and bikes are used whose positions can be adjusted.
The position is adjusted according to the type of pile, and the pile is formed so that it can grip as many grippers or bikes as there are grippers, and a powerful pile press-in can be achieved.

Further, in a preferred embodiment of the present invention, the gripper is of a type in which downward or upward teeth grip the stake as necessary, so that the stake can be press-fitted and the stake can be pulled out. It looks like this.

Next, this invention will be explained in detail.

1 and 2 are a front view and a plan view of the press-fitting device of the present invention, and FIG. 3 is a side view illustrating the structure of the main part of the device.

In FIGS. 1 to 3, reference numeral 12°12 denotes a main frame arranged substantially horizontally and parallel to each other, and both ends are connected via a telescoping mechanism 14 to a base 18 of an outrigger 16, that is, a bridge portion, forming a main base 10. do.

The telescopic mechanism 14 includes a first telescopic mechanism extending from the main frame 12.
A hollow member 14a, a second hollow member 14b extending from the base 18 of the outrigger 16 and coupled to the first hollow member 14a in a telescopic structure, a hydraulic jack 14c installed in the second hollow member 14b, and the jack 14c. piston 14
The piston 14d is provided with a pin 14e that connects the tip of the piston 14d to the first hollow member 14a, and drives the jack 14c to move the piston 14d in the left-right direction, that is, in the vertical direction in FIG.

The outboard 16 is therefore longitudinally extended and retracted from the main frame 12.12.

Attached to the base body 18, as shown in FIG. 2, are hollow members 20, 22 extending perpendicularly and horizontally to the longitudinal direction, ie, laterally opposite.

The hollow members 20 and 22 each have a hydraulic jack 20 inside.
a, the piston 20b is telescopically connected to the hollow member 20, and a movable arm 20c and a pin 20.
connected by d.

In this way, the hollow members 20, 22, the jack 20a1
The piston 20b forms a lateral movement mechanism 17 that moves the following legs approximately perpendicular to the main frame 12.12.

A hydraulic jack 24 is attached to the tip of the movable arm 20c, and a plate-shaped leg 28 is attached to the lower end of the piston or leg 26 of the jack 24.

As shown in FIG. 2, the jack 24 is provided with two walls 24a extending vertically, the tip of the moving arm 20e is sandwiched between these two walls, and a plurality of vertically arranged walls 24a are arranged vertically on the wall 24a. One of the through holes and the mounting hole of the moving arm 20c (
By inserting a pin 24b through the hydraulic cylinder 240 (not shown), the tip of the moving arm 20c is attached to the hydraulic cylinder 240 at various heights.

The hollow member 20°22 is attached to the mounting plate 30. as shown in the first section.
Hollow member 20 .
2 and the hydraulic jack 24 can be moved up and down with respect to the main frames 12, 12 in a stepwise manner.

The mechanism that performs the stepwise movement is referred to as a leg length adjustment mechanism.

A moving arm similar to the moving arm 20c extends from the hollow member 22 in the opposite direction to the moving arm 20c, and a hydraulic jack similar to the hydraulic jack 24 is attached to the tip thereof,
A foot similar to the foot 28 described above is attached to the lower end of the piston extending downward from the jack, which is the same as the structure from the hollow member 20 to the foot 28 described above.

Also, as shown in FIGS. 1 and 2, the main frame 12
, 12 is also attached to the right end of the outrigger 16, but its structure is the same as the left end outrigger 16 described earlier, so its explanation will be omitted.

Main frame 12.12 as shown in Figures 1 and 3.
There is an upright wall 50. which is formed approximately symmetrically to each other in the central part.
52 is removably attached.

FIG. 3 is a view of the inner upright wall 50, 52 and related members to be described later, viewed from the left side of FIG.
It is shown as a cross section along line -3.

The upright wall 50 has a square hollow body 50a and support legs 5 that support it.
It consists of 0b and 50c.

54 is the upper lid of the square hollow body 50a.

Both the upright wall 52 and the rectangular hollow body 52a have two supporting legs (of which only one 52b is shown in FIG. 3), the lower ends of these four supporting legs being connected to the main frame 12. It is removably attached to 12.

The structure of this upright wall 52 is similar to that of the upright wall 50 except that it is substantially symmetrical, so only the connection structure between the support legs 52b and the main frame 12 is shown in FIG.

That is, the lower end of the support leg 52b is held between the holding plates 12a, 12a extending from both sides of the main frame 120, and is connected to the main frame 12 by a pin 56 that can be pulled out as required.

A pin 58 is provided at the top of the upright wall 500 square hollow body 50a.
a, 60a, and the pin 58a.

Hydraulic jacks 58 and 60 are attached to 50a, respectively, and pistons 58b and 60b of the hydraulic jacks
extends downward, the tip of the piston 58 is attached to the moving frame 64, and the tip of the piston 60b is in contact with the bottom of a moving hollow body s4a, which will be described later.

As clearly shown in FIGS. 1 and 3, the moving frame 64 includes a square moving hollow body 64a inserted from below into the square hollow body 50a, and a rectangular lower frame formed at the bottom of the hollow body 64a. 64b, the tip of a piston 58b is attached to the lower end of the moving hollow body 64a by a pin 58e, and the tip of the piston 60b is attached to a leg 60 in this embodiment.
It is in contact with the bottom of the hollow portion of the moving hollow body 64a via the movable hollow body 64a.

Therefore, by driving one or both of the jacks 58, 60 to extend the pistons 58b, 60b, the lower frame 64b can be lowered.

However, when raising the lower frame 64b, the jack 58
The rise is effected solely by the action of .

Of course, this method of connecting the pistons 58b, 60b and the hollow body 64a is just one example, and the tips of both pistons are connected to the hollow body 64a.
This vertical movement, which may be connected to the moving hollow body 64a, is smoothly performed by being guided by the rectangular hollow body 50a.

A mechanism similar to that of the upright wall 50 is provided in the series wall 52, and two hydraulic jacks belonging to this mechanism work together with the jacks 58 and 60 to move the moving frame 64 up and down. .

Two peg grabbers or grippers 70,72 are mounted within the lower frame 64b at a suitable distance to grip the pegs 82,124.

The above-mentioned upright wall 50.52, moving frame 64, jack 58.6
0 forms a lifting mechanism 49 that moves the grippers 70, 72 up and down.

FIG. 4 shows the detailed mechanism of the lower frame 64b and the gripper 70.
72 is shown.

The grippers 70 and 72 are placed on an edge 64c (FIGS. 3 and 4) formed at the lower end of the lower frame 64, and as shown in FIG. Lid 7
4.74, and the distance between the two grippers 70.72 is ensured by a spacing member 76.76 inserted between them.

When the grippers 70 and 720 are moved closer to each other, a short spacing member is used, and the grippers 70 and 720 are moved closer to each other.
Appropriate spacers may be inserted between the lids 74 and 74 respectively.

Reference numeral 73 in the figure is an opening formed in the lower frame 64b for easily operating the bundle 88 of the gripper 12.

Although the grippers 70, 72 are mounted in the opposite direction in FIG. 4, their structure and operation are the same, so the gripper 70 will now be described.

In FIG. 4, the gripper 70 is moved in the vertical direction
It has a substantially prismatic body 80 extending perpendicular to the plane of the drawing.

80a is a hole that can penetrate the body 80 up and down, 80
b is a gap connecting the above-mentioned pocket 80a to the outside, and the protruding portion 80c of the body 80 faces oppositely across this gap 80b.
.

80d includes a fixed tooth member 84 and a movable tooth unit 86 (the member 84
and unit 86 are collectively referred to as a clamping mechanism 87) are mounted facing each other, and the clamping mechanism 87 is connected to the bundle 8.
As will be explained later, the operation at step 8 takes a neutral position in which 82 is held in two different ways and 82 is completely released.

The armrest roller 80a provides an escape area for receiving one wing section 82b when the section 82a formed between the wing sections 82b of the armature 82 is clamped by the clamping mechanism 81.

FIG. 6 is a view taken along line 6-6 of the clamping mechanism 87 of FIG.

The fixed tooth member 84 is attached to the protrusion 80d of the body 80 by an appropriate well-known method, and the movable tooth unit 86 is attached to the protrusion 80d of the body 80.
It is attached to the protrusion 80c of 0.

There are two triangular depressions 90. at the tip of the protrusion 80c.
92 is formed, (the pock 90 has first and second sections having a substantially trapezoidal cross section, which are coupled so that the bottom sides can be slid in the left and right directions in the figure, and cannot be moved relative to each other up and down. Wedge 94.
96 is fitted, and into the recess 92 are fitted two wedges, namely a third and a fourth wedge 98° 100, having a similar shape to the wedges 94, 96 and connected in a similar manner. .

Hollow spaces 90a, 92 provided at the tops of depressions 90, 92
As will be explained later, a is a relief that prevents the wedge from hitting the top when it moves.

The second and third wedges 96.98 are joined in the same manner as the first and second wedges 94.96, with their trapezoidal top sides abutting.

Among these coupling conditions, the coupling condition of the first and second wedges 94, 96 and the coupling condition of the second and third wedges 96, 98 are shown in FIG.

FIG. 5 is a view of the upper part of the movable tooth unit 86 of FIG. 6 viewed from the right side.

At the bottom of the wedge 94, a substantially L-shaped projection 94g extending perpendicular to the plane of the paper of FIG. Protrusions 96g and 96h are formed to engage with the protrusions 94g and 94h.

The same bonding method as the above bonding method is used for bonding between other comrades.

Reference numerals 102 and 104 in FIGS. 5 and 6 refer to protrusions 80.
There are retaining plates screwed to both sides of c.

On both sides of the wedges 94.96, 98.100 there are guide grooves 9 running approximately parallel to the corresponding slopes of the recesses 90.92.
4a, 96a, 98a, and 100a are provided.

(A similar guide groove is formed on the side surface on the opposite side overlapping the rust groove as shown in FIG. 6.)
In FIG. 5, there are two locations 194a and 196a).

In addition, the guide grooves 94a and 96a are provided in the holding plate 102.
.

A key (94b) that engages with 98a and 100a, respectively.

96b, 98b, and 100b are provided in a protruding manner.

Further, the holding plate 104 is also provided with a protruding key that engages with the corresponding guide side.

In FIG. 5, keys 94b and 96b are shown on the holding plate 102 side, and keys 194b and 196b are shown on the holding plate 104 side.

As shown in FIG. 6, each wedge has a fixed tooth member 8.
A tooth portion is formed on the side opposite to 4.

This toothing is shown enlarged in FIG.

As shown in FIG. 9, the wedges 94, 94, 98, and 100 have teeth portions 94c, 96c, and 98c, respectively.

100c is provided, and the fixed tooth member 84 is provided with tooth portions 94d, 96d, 98d, and 100d facing the tooth portions, respectively.

As can be seen from the figure, tooth portions 94c, 94d, 98c, 9
The tooth 8d is formed downward, and has tooth portions 96e and 96d.

Teeth 100c and 100d are formed upward.

Further, a pin 120 is attached to the head of the uppermost rust 940, and a bundle 88 is rotatably fitted into the pin 120.

A fulcrum member 122 is mounted on the protrusion 80c of the body 80 near the head of the wedge 940, substantially parallel to the pin 120.

Next, the operation of this gripper 70 will be explained.

FIG. 6 shows a case where the bundles 8, 8 are in the neutral position and the movable tooth unit 86 is at the farthest position from the fixed tooth member 84.

When the bundle 88 is moved in the direction of arrow A, the bundle 88 rotates counterclockwise in the figure using the support member 122 as a fulcrum, and pulls up the wedge 94 via the pin 120.

The above-mentioned protrusion 94a. Since the protrusions 94b, etc. and the protrusions 96a, 96b, etc. are connected as described above, all the wedges 94, 9
6°sa, ioo will be raised.

When the wedge 94 is pulled upward, the guide groove 94a of the wedge 94 engages with the key 94b protruding from the holding plate 102 (the wedge 94 moves upward and at the same time moves to the right in FIG. 6).

The next wedge 96 is pulled up together with the wedge 94, but moves upward and to the left based on the inclination of the guide groove 96a.

Thereafter, the wedge 98 moves to the right and the wedge 100 moves to the left in the same manner, resulting in the state shown in FIG.

Therefore, if the tooth 122 is inserted between the movable tooth unit 86 and the fixed tooth member 84, the teeth 94c and 94d and the teeth 98c6 and 98d will clamp the tooth 122.

At this time, all the teeth that hold the pegs 122 are formed downward, so if the jacks 58 and 60 are driven to lower the clipper 70, the teeth bite strongly into the pegs 122, causing the pegs 122 to It can be strongly pressed into the ground.

If the gripper 10 is raised after the peg 122 is press-fitted in this state, the gripper 70 will close to the tooth portion 94c.

94d, and the teeth 98c and 98d (12).
The biting against 2 moves in the direction that it comes off.
The tooth portion that grips 2 moves upward while sliding on both sides of 122.

At this time, if the bundle 88 is rotated in the direction of arrow B in FIG. 6 and returned to the neutral position, the fixed tooth member 84 and the movable tooth unit 8
6 is further away from 122, and the gripper can rise more easily.

If the bundle 88 is further rotated in the direction B, (rust 94,
96, 98° 100 moves downward, and by the opposite movement of the bundle 88 in the direction A, (rust 94° 9
8 moves to the left in FIG. 6, and wedges 96, 100 move to the right.

Therefore, the positional relationship between the fixed tooth member 84 and the movable tooth unit 86 is as shown in FIG.

That is, (122) is held between the teeth 96c and 96d and between the teeth 100c and 100d.

All of the teeth are formed to face upward, so if the gripper 70 is raised, the four teeth 96c, 96d
, 100c, and 100d are pressed into the ground by digging into the surface of the pipe 122 (the pipe 122 is pulled out of the ground by the stroke of the hydraulic jack 58).

In contrast to the case of press-fitting a pile, when lowering the gripper 70, 72, etc., the teeth of the gripper and the bite of the pile are released, so the pile can be pulled out of the ground by moving the gripper up and down.

As shown in Fig. 1.2.4, the peg press-fitting device of this invention uses two grippers 70, 72, each of which holds two pegs 82, 124 connected at the end of the wing. Grasping at the central part, both grippers 70, 72 cooperate to force a pair of connected piles 82, 124 into the ground and pull them out of the ground.

Figures 1 and 2 show the screws that have already been press-fitted (126, 128°, 130.14
8,150 mag is depicted.

As shown in FIG. 1, these are press-fitted into the ground to a predetermined depth and protrude above the ground by a predetermined length.

As shown in FIGS. 1 and 3, reference numerals 132 and 134 indicate an auxiliary frame 138 provided below the main frames 12 and 12.
This bike is mounted between the main frame and the main frame so that the position can be adjusted while sliding on both frames.

The bikes 132, 134 are formed to grip the piles 126, 12B that have already been pressed in when the stakes 82, 124 are pressed in, and when the legs 26 and feet 28 are raised to make the device walk. The weight of the device is 126゜128 through this bike 132.134
148 and 150 via a loose force absorbing device 146, which will be explained later.

The bikes 132 and 134 have a makeup drive handle 132a.
, 134a (FIGS. 1 and 3) up and down, the piles 126, 128 (
Since this is a well-known device for grasping and releasing the device (Fig. 3), further explanation will be omitted.

The action of this bike 132 and 134 is that when the pegs 82 and 124 are press-fitted, the upright wall 50 is moved through the grippers 70 and 72.
．． 52 and the main frame 12.12 to counteract the upward force, i.e. the reaction force, on the main frame 12.12.
It is used to join the piles 126° 128 which have already been solidified into the ground (press-fitted).

In this sense, the vita 132, 134 can be called a reaction force absorption mechanism.

In addition, as shown in FIGS. 1 and 2, the main frame 12
．． A hydraulic jack 142 is mounted in a mounting frame 140 mounted on the top of the mounting frame 140, and a piston 142a of the jack
A foot plate 144 is attached to the tip of the jack 1.
By driving 42, the foot plate 144 can be moved up and down.

Further, a plurality of pin holes 140a are vertically bored in the mounting frame 140, and by inserting a pin 140b into one of the pin holes 140a and a mounting hole (not shown) of the jack 142, the jack 142 can be mounted. 142 is the mounting frame 14
The position can be changed up or down relative to 0.

This mechanism is called a free force absorption mechanism 146.

The term free force in the above description means the following force.

That is, when entering and exiting pegs 82 and 124, frame 1
2. Reaction force exerted on 12 etc. & ζ Above bikes 132, 134
Most of it can be absorbed by gripping the difficult 126° 128, but since the positions of 82. A rotational force is generated.

In order to prevent rotation of the main frame due to this force, some kind of strong support means is provided extending downward from the right side main frame portion of the bikes 132, 134, and its tip is placed on a suitable platform, that is, in the ground. It must be supported by a firmly fixed member or, if this is not available, by the ground.

The force with which the main frame pushes the ground based on the rotational force acting on the main frame 12, 12 as described above is herein referred to as a free force.

The above-mentioned loose force absorption mechanism 146 corresponds to the above-mentioned support means, and when using this mechanism 146, the foot plate 144 is placed on the head of the press-fitted stake (148, 150 in Fig. 1.2), It is common to use this as a strong platform.

Reference numeral 160 in FIG. 1 is a pliers projecting downward from the movable frame 64, and is used to push the head of the peg to be press-fitted by pressing the upper gripper while the device is running appropriately, and further press-fit the peg to a predetermined depth. .

The various hydraulic jacks mentioned above are all supplied with pressure oil controlled by hydraulic piping, but since these piping methods belong to well-known technology, illustrations are omitted to avoid complicating the drawings. There is.

Next, the operation of the pile press-fitting device of the present invention will be explained.

This device is normally transported to the construction site on a suitable transport device, such as a trailer, and lowered to the ground with the aid of a large crane truck; however, to facilitate transport, the pins 56 are pulled out of the walls 50, 52. This allows it to be removed from the main frame 12.12 and transported with the overall height of the device reduced.

The device can also perform longitudinal running motion by raising and lowering the legs 26 and feet 28 of the outriggers 16 in a suitable sequence and extending and retracting the outriggers 16 relative to the main frame 12.12 in a suitable sequence. As well as being able to
Since it can also move in the lateral direction by driving the lateral movement mechanism 11,
Narrow spaces that cannot be accessed by trailers or large cranes, places with height restrictions, relatively uneven places, sloping land,
This device can reach places with steps using its own blade.

The weight of the device when lifting the legs 26 and feet 28 of the outrigger 16 from the ground in this way is Qζ Main frame 12.1
2 through the bike 132°134 (12)
6, 128, and is also hung on stakes 148 and 150 press-fitted via the piston 142a of the force absorbing mechanism 146 and the foot plate 144, and is supported by these stakes.

Also, the base body 18 of the outrigger 16 and therefore the hollow member 2
The height of 0.22 can be adjusted by selecting one of the holes 32 in the base body 18 and using the pin/34, or by selecting one of the holes 32 in the wall 24a of the hydraulic cylinder 24. Select one of them and connect the corresponding hole and moving arm 20c.
The vertical position of the leg 28 can be adjusted by inserting the first pin 24b through a mounting hole (not shown) at the tip of the hydraulic cylinder 24 and connecting the moving arm 20e.

In this way, the height of the main frame 12.12 above the ground can be adjusted in various ways, and the main frame 12.12 can be placed almost horizontally even on land that is not flat as described above.

For transportation, etc., the upright walls 50, 52, removed if desired, are attached to the main frame 12, 12 at a suitable location or time, either before or after the apparatus reaches its working position.

The grippers 70, 72 are then placed in a neutral position using the bundle 88, and the spacing between the fixed tooth member 84 and the movable tooth unit 86 is opened, for example using a suitable small crane, the two connected Insert 82.124.

At this time, if there are already press-fitted stakes, the bike 132
, 134 grip the stakes 126, 128, for example.

If there is no peg that has already been press-fitted, use the weight of the device to place a heavy object on the device and press-fit the device, or have the bike gripped by a suitable member or structure held in the ground.

Pin hole 140a of mounting frame 140 of violation force absorption mechanism 145
By inserting the pin 140b into the mounting hole of the hydraulic jack 142, the foot plate 144 can be raised and lowered in a stepwise manner, and by driving the hydraulic jack 142, the foot plate 144 can be securely placed on can be placed.

Next, push the bundle 88 of the grippers 7Q and 72 downward,
Wedges 94 and 98 are advanced (FIG. 1) to grip 82 and 124, which are tightly spaced from fixed tooth member 84.

In FIG. 7, 82 and 124 are collectively represented by 122a.

Next, by driving the hydraulic jacks 58, 60 in the upright wall 50, 52 and moving the grippers 70, 72 downward via the moving frame 64, (122a is pressed into the ground by the stroke of the jacks 58, 60). Ru.

Next, drive the jacks 58 and 60 in the opposite direction to move the moving frame 64.
(in this case the raising of the movable frame 64 is carried out by the jack 58), the gripper TO 172 is raised and the peg 82 by the wedge 94.98 and the fixed tooth member 84 is raised.
．． 124 is loosened, and the grippers 70, 72 rise, leaving the stake 122a.

At this time, the bundle 88 is returned to the neutral position and the wedge 94.9
8 and the fixed tooth member 84, the gripper 70
．． 72 may be allowed to rise more freely.

In this way, the grippers 70, 72 are jagged 58, 6.
When it reaches the upper position of the stroke of 0, move frame 6
4, and if the bundle 88 is moved to the neutral position, the bundle 88 is lowered and the pile 122 is moved again.
After gripping the pile 122a, the jacks 58 and 60 can be driven to press the pile 122a into the ground one more stroke.

By repeating this operation, the pile 122a is forced into the ground as far as possible using the gripping action of the clippers 70, 72.

Next, the telescopic mechanism 14 and the outrigger 16 are driven to move the peg 160 attached to the lower side of the moving frame 64.
22a and driving the jacks 58 and 60, the piles 122a and 82 and 124 are further pressed into the ground, and the piles 126, 1
It is possible to align the heads with 28, 130, etc.

With the above-mentioned operations, each upright wall 5
Both jacks 58.60 within 0.52 may be used during press-fitting, or only one of them may be used.

Additionally, if the main frame 12.12 is tilted due to the above-mentioned loose force or other causes during press-fitting work, the tilt can be corrected by driving the jack 142 in the violation force absorption mechanism 146. .

The device of the present invention can also be used to pull out piles that are being press-fitted.

In this case, the bundle 88 is rotated in the direction B in FIG.
The aforementioned stake is sandwiched between the wedge 96.100 and the fixed tooth member 84.

Next, when the jack 58 is driven to raise the gripper 70, 72, the teeth of the wedges 96, 100 and the member 84 bite into the stake, and the stake is pulled out of the ground.

If the grippers 70, 72 are now lowered, the teeth are no longer biting into the pegs (and move to the lower position with the pegs remaining).

Therefore, by raising the grippers 70, 72 again, the grip can be pulled out even more.

By repeating the above steps, the stake is pulled out.

In this case, the bundle 88 may be repeated to take advantage of the neutral state of the gripper (as in the case of a press fit).

By using the apparatus of the embodiment described above, many effects can be obtained as follows.

(1) Press-fitting can be performed almost without vibration or noise.

(2) Since the main frame 12.12 and the upright wall 50.52 are formed so that they can be separated, they can be separated after the pile press-in work is completed, reducing obstacles due to height restrictions when moving or transporting them, and transporting them. can increase convenience and stability.

(3) The two hydraulic jacks 58 and 60 installed in each upright wall may be
The work can be carried out using a suitably selected number of 1 or 2.

(4) The hydraulic jack 142 of the violation force absorption mechanism 146 is
Since the mechanism 1460 is formed so that it can be attached to various positions within the attachment frame 140 at different positions up and down, the range of action of the mechanism 1460 can be widened.

(5) The hollow member 20.22 with the hydraulic jack 20a inside the outrigger 16 can be adjusted up and down by changing the insertion position of the pin 34, so the up and down position of the foot 28 can be moved in stages. Therefore, the height of the main frames 12, 12 can be varied widely.

(6) The coupling position of the hollow member 20 and the hydraulic jack 24 that drives the piston 26 that moves the foot 28 of the outrigger 16 up and down can be moved up and down by changing the insertion position of the pin 24b.

In this case, as well as the effect of paragraph (5) above, the main frame 1
2.12 heights can vary widely.

(7) A reaction force absorbing bike 132° 134 installed between the auxiliary frame 138 installed below the main frames 12, 12 and the main frame 12.12 is connected to the auxiliary frame 138 and the main frame 12. 12 so as to be able to adjust the position while sliding, and be able to be moved so that the stake can be reliably grasped depending on the type of stake.

(8) Gripper 70°7 mounted inside the moving frame 64
2 can be adjusted in position within the moving frame 64 according to the type of peg used, and therefore the peg can be reliably gripped.

(9) A pliers 160 is attached to the lower side of the movable frame 64, and is used for difficult press-fitting as described above, so there is no need to move the ply with a crane or the like.
Be effective in terms of safety and efficiency.

Outriggers 16 extending from the main frame 12.12
Due to this action, this device is configured to be able to run like an inchworm, and it can easily move vertically and horizontally even in narrow spaces, on uneven or sloping land, and in places with relatively low height restrictions. Press-fit and pull-out work is possible,
Therefore, all you need is a supply crane, which is difficult to press-in, and there is no need for a trailer or large crane truck, which improves work safety.
Being able to measure improvements in efficiency.

(L]) The first hollow member 14a of the main frame 12.12 and the second hollow member 14b of the telescoping mechanism 14 for the outrigger 16
Since they form a telescopic connection, both members 14a and 1
4b work together to bear the force applied to the main frame 12.12.

αa A large pressing force can be obtained by gripping multiple press-fits (two in the example of the above explanation) with the biters 132 and 134. Therefore, it is possible to press-in without inconveniences such as loosening the ground using the organic method that uses an auger or jet.

By using the grippers 70, 72 previously described, it is possible to press in and pull out the pile.

This method of pulling out the pile is extremely effective in cases where there is no obstacle during the pile press-in, but the press-in is blocked, and when the pile is easily pulled out and the pile press-in is continued after proper treatment.

[Brief explanation of the drawing]

FIG. 1 is a front view of the press-fitting device of the present invention, FIG. 2 is a plan view of the device shown in FIG. 1, and FIG. 4 is a plan view showing the lower frame with two grips attached, FIG. 5 is a front view of the movable tooth unit shown in FIG. 4, and FIG. 6-6 line sectional view, FIG. 7, and FIG. 8 are diagrams showing the operation mode in which the stake clamping mechanism is clamping the stake for the pile press-in, and the operation mode in which the stake is clamped for the pile extraction (respectively). , FIG. 9 is an enlarged view of the clamping mechanism shown in FIG. 6 to clearly show the protruding direction of the teeth. 10... base, 12... main frame, 14... telescopic mechanism, 14a...first hollow member, 14b...second
Hollow member, 14c... Hydraulic jack, 14d... Piston, 14e... Pin, 16... Outrigger, 1
7... Lateral movement mechanism, 18... Base, bridge section, 20.
... Hollow member, 20a... Hydraulic jack, first hydraulic jack, 20b... Piston, 20c... Moving arm, 20d... Pin, 22... Hollow member, 24...
...Hydraulic jack, second hydraulic jack, 24a...
Wall, 24b... Pin, 25... Leg length adjustment mechanism, 26
...Piston, leg, 49...Gripper lifting mechanism, 5
0... Upright wall, 50a... Square hollow body, 50b, 5
0c... Support leg, 52... Upright wall, 52a... Square hollow body, 52b, 52c... Support leg, 58.60.
... Hydraulic jack, 64... Moving frame, 64a... Moving hollow body, 64b... Lower frame, 70° 72... Gripper, 80... Body, 80b... Gap, 84...
・Fixed tooth member, 86...Movable tooth unit, 8T...
Clamping mechanism, 88...handle, 94...besabi, 1st
wedge, 94a...guide groove, 94b...key, 9
4c, 94d... tooth portion, 96... bevel, second wedge, 96a... guide groove, 96b... key, 96C
996d... tooth portion, 98... (rust, third (rust, 98a"' guide groove, 98b-... key, 98 c,
98d...Tooth portion, 100...Bevel, fourth (rust), 100a...Guide groove, 100b-...Key, 100
c, 100d... tooth portion, 122a... stake, 132
, 134... Biter, 138... Auxiliary frame, 1
40...Mounting frame, 142...Hydraulic jack, 142
a... Piston, 144... Foot plate, 146... Violation force absorption mechanism.

Claims (1)

[Claims] 1. A base having a main frame arranged substantially horizontally; and:
a gripper that can grip and release the stake; a gripper lifting mechanism that is attached to the main frame and raises and lowers the gripper; an outrigger that is connected to both ends of the base and that grips and releases the stake; an outrigger that protrudes substantially perpendicularly and substantially horizontally in opposite directions, each having a plurality of legs; an extension mechanism that individually extends and contracts the outrigger in the longitudinal direction from the main frame; a lateral movement mechanism that individually moves the legs in a lateral direction substantially perpendicular to the longitudinal direction; a leg length adjustment mechanism that is provided on the outrigger and that individually adjusts the length of the legs; A reaction force absorption mechanism that absorbs the floating reaction force that acts on the main frame during press-fitting; Equipped with a reverse reaction force absorption mechanism that absorbs the reverse reaction force when the frame presses against the ground.
By appropriately driving the expansion/contraction mechanism, lateral movement mechanism, and leg length adjustment mechanism, the machine moves an appropriate distance in the vertical and lateral directions and press-fits the stakes in sequence. an upright wall that is removably attached to the frame and stands up from the main frame and has a square hollow body and support legs; a movable hollow body that fits into the square hollow body and slides; and a vertically positioned gripper; A peg press-fitting device according to claim 1, comprising: a moving frame having a lower frame that is adjustable; and a hydraulic jack provided in the square hollow body for raising and lowering the moving frame.3. A patent comprising a first hollow member extending from the main frame, a second hollow member extending from the outrigger, and a hydraulic jack provided in one of the two members and slidably connected to the other. 4. The press-fitting device according to claim 3, wherein each of the IJs has two legs. 5: The lateral movement mechanism is provided on the outrigger. a pair of first hydraulic jacks attached to the base body and mounted laterally and in opposite directions; and a second hydraulic jack belonging to the hydraulic jacks and provided at the tip thereof for extending and retracting the legs. 6. The pile press-fitting device according to claim 4, comprising: a piston having a cylinder attached thereto; and means for attaching the first hydraulic jack to the base body by selecting the height in stages. 6. The leg length adjustment mechanism includes the second hydraulic jack,
The press-fitting device according to claim 5, further comprising a leg extending downward from the jack, and means for selecting the connection between the second hydraulic jack and the first hydraulic jack in a stepwise manner. Apparatus. 7. The gripper includes a movable tooth unit provided facing each other on both sides of a gap that holds a body and a stake formed in the body, a fixed tooth member, and a handle attached to the movable tooth unit. The movable tooth units are arranged vertically adjacent to each other and are composed of a plurality of mutually interlocking (ruses), the adjacent (ruses) each have tooth portions that protrude in opposite directions, and the handle By the operation of (
Claim 6, wherein when the wedges are moved in the vertical direction, the wedges move forward and backward every other time to sandwich the wedges between the fixed tooth member in a manner suitable for pulling out or press-fitting the wedges. (Press-fitting device. 8) The press-fitting device according to claim 1, wherein the reaction force absorbing mechanism includes a plurality of bikes mounted on the lower side of the main frame so as to be adjustable in position. 9. The press-fitting device according to claim 1. The force absorption mechanism includes a mounting frame attached to the main frame, a hydraulic jack attached to the mounting frame and extending the piston downward, a foot plate attached to the lower end of the piston, and the hydraulic jack attached to the mounting frame. 9. The pile press-fitting device according to claim 8, comprising means for selecting and attaching the pile to the frame in stages.