JPH08301573A - Hanging accessory for pile - Google Patents

Abstract

PURPOSE: To provide a hanging accessory fitted in the state of being wound around the upper part peripheral surface of a pile and removed safely from the pile. CONSTITUTION: A pile hanging accessory 1 fitted in the state of being wound around the upper part peripheral surface of a pile is composed of a fixed member 3 fastened in an immobile state to the peripheral surface of the pile, and a movable member 4 movably fitted to the peripheral surface of the pile. The fixed member 3 is formed of a pair of half-divided bodies 5. 5 of approximately semicircular shape, and a fastening part 7 for making both half-divided bodies 5, 5 butt each other to connect and fasten them in annular form. The movable member 4 fitted to the lower side of the fixed member 3 is formed of a pair of half-divided bodies 21, 21 of approximately semicircular shape, and a connecting part 22 for making both half-divided bodies 21, 21 butt each other to connect them in annular form. One divided body 21 is protrusively provided with a hanging part 30 to be hooked to the hook of a winch, and the upward movement range of the movable member 4 is regulated by the fixed member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging metal fitting for a pile (hereinafter abbreviated as "hanging metal fitting") used when a pile such as a steel pipe or concrete is lifted by a winch and attached to a predetermined position of a pile driver. Is.

[0002]

2. Description of the Related Art A conventional hanging metal fitting has a structure in which an annular hanging portion is provided at both ends of a rope portion such as a wire, and the rope portion is wound around an upper end portion of a pile and firmly fastened. Then, the hanging part is hooked on the hook of the winch, the lifting wire is wound up, the pile is lifted and settled at a predetermined position of the pile driving machine, then climbed to a high position with a ladder provided with the pile driving machine, and on the rung of the ladder. The hanging bracket was removed while standing, and then the pile was buried.

[0003]

However, the work of removing the hanging metal fittings from the piles must be carried out at a height of several meters from the ground and on a cross bar with poor footing while balancing, which is a very dangerous work. there were.

Therefore, the present invention solves the above-mentioned problems by providing a hanging fitting that can be safely removed from a pile.

[0005]

SUMMARY OF THE INVENTION A hanging member for a pile according to the present invention is a hanging member for a pile which is attached in a state wound around an upper outer peripheral surface of a pile, and is a fixing member which is fixed to an outer peripheral surface of the pile in an immovable state. And a movable member that is movably attached to the outer peripheral surface of the pile with a slight gap, and the fixed member is a pair of substantially semicircular halves, and the two halves are joined to each other in an annular shape. The movable member is attached to the lower side of the fixed member, and comprises a pair of substantially semicircular divided bodies, and a connecting part for joining both divided bodies to each other to form an annular shape, The diameter of the ring is slightly larger than the diameter of the pile, and one of the divided bodies is provided with a suspending portion that is hooked on a hook of a winch, and the upward movement range of the movable member is regulated by a fixed member. It is characterized by the following.

[0006] In addition, a projecting piece may be provided on a part of the outer peripheral surface of the fixed member, and a pair of fitting pieces into which the projecting piece fits may be provided on a part of the outer peripheral surface of the movable member. Alternatively, a pair of fitting pieces may be provided on a part of the outer peripheral surface of the fixed member so as to face each other, and a protruding piece may be provided on a part of the outer peripheral surface of the movable member.

[0007]

The fixing member is formed into an annular shape by abutting the two halves with each other, and by fastening the fastening portion, the halves are fixed to the outer peripheral surface of the pile in a brim shape. The movable member is formed into an annular shape slightly larger than the diameter of the pile by abutting the two divided bodies with each other, and by connecting the connecting portion, a gap is slightly left between the movable member and the outer peripheral surface of the pile to be below the fixed member. Attach. Therefore, the movable member can be moved below the fixed member and can also rotate in the circumferential direction.

[0008] By fitting the protruding piece between the pair of fitting pieces, the movable member cannot be rotated in the circumferential direction, that is, both members can be fixed to the pile and fixed to the pile.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a hanging bracket 1 of the present invention has an annular fixing member 3 which is fixedly mounted on an outer peripheral surface of an upper end portion of a pile 2, a movable member which can move vertically and can rotate in a circumferential direction. 2 with the annular movable member 4 attached to the outer peripheral surface of the pile 2 in the state
The movable member 4 is moved upward by the fixed member 3.
It is regulated by.

The fixing member 3 is, as shown in FIG.
A pair of approximately half-circle halves 5, 5 are connected to be openable and closable by a shaft 6, and the two halves 5, 5 are abutted to each other and connected by a fastening portion 7 and fastened to a closed state, ie, an annular form It is something to make.

As shown in FIG. 3, the openable and closable structure is such that one half body 5 is provided with a pair of parallel connecting pieces 8a, 8a protruding from the tip above and below the outer peripheral surface of the base. Body 5
In the middle of the outer peripheral surface of the base portion, connecting pieces 8b which are fitted at a slight interval between the connecting pieces 8a, 8a are provided protruding from the front end, and the shaft 6 is inserted through these connecting pieces 8a, 8a, 8b. Thus, the two halves 5, 5 are rotatably fixed to the shaft. As shown in FIG. 4, the structure of the fastening portion 7 is such that a pair of parallel arm pieces 9 and 9 are provided on the upper and lower sides of the outer peripheral surface of the front portion of one half-split body 5 so as to project outward. A support shaft 11 is rotatably inserted into each of the circular holes 10 formed in the opposite positions of the support shaft 9, and the bolt 12 is vertically integrated with the support shaft 11 between the arm pieces 9 and 9. It is attached. Above and below the outer peripheral surface of the tip of the other half body 5, a pair of holding pieces 13, 13 are provided so as to protrude outward in a parallel state so as to hold the bolt 12 with a slight space therebetween. Then, the two halves 5 and 5 are butted against each other to form an annular shape, the bolt 12 is sandwiched between the two clamping pieces 13 and 13, and the two clamping pieces 13 and 13 are pushed by the nut 14 screwed to the bolt 12. It is configured such that the front ends of both the half-divided bodies 5, 5 can be screwed together and firmly fastened and fixed to the pile 2. Reference numeral 15 denotes a washer.

The movable member 4 is, as shown in FIG.
In a substantially similar manner to the fixing member 3, a pair of divided bodies 2 having a substantially semicircular shape
1, 21 are openably and closably connected by a shaft 33, and both divided bodies 2
The diameter of the ring is slightly larger than the diameter of the pile 2, and the fixing member 3 is slightly spaced from the outer peripheral surface of the pile 2. And a hook of a winch is hooked on a suspending portion 30 provided on a part of one of the divided bodies 21.

The two divided bodies 21 and 21 are connected to each other by a shaft 33 so as to be openable and closable, as in the case of the fixing member 3. Reference numerals 34a and 34b are connecting pieces. As shown in FIG. 5, the structure of the connecting portion 22 is such that one of the divided bodies 21 is provided with a pair of parallel tongue pieces 24a, 24a above and below the outer peripheral surface of the front portion so as to project from the tip, and the other divided body 21 is A tongue piece 24b that fits with a gap between the tongue pieces 24a, 24a is provided in the middle of the outer peripheral surface of the tip portion so as to protrude from the tip. The tongue pieces 24a, 24b, 24a face each other in the vertical direction. The holes 25 are formed at the respective positions. And these holes 2
The other end portions of the two divided bodies 21 and 21 are connected to each other by inserting a detachable locking pin 26 into 5, 25, 25, and can be attached to the pile 2 movably in the vertical direction. In addition, a plate piece 28 having an insertion hole 27 at the front end thereof on the outer peripheral surface of one of the divided bodies 21.
Is mounted so as to protrude outward, and a turning shaft 29 is inserted into the insertion hole 27, and a U-shaped hanging portion 30 is attached to both ends of the turning shaft 29.
Are fixed to each other so that the hanging portion 30 can swing.

The main suspension fitting 1 constructed as described above is used as follows. First, the fixed member 3 is fixedly attached to the pile 2 by tightening the nut 14, and the movable member 4 is attached to the lower side of the fixed member 3 with a gap. When the hook of the winch is hooked on the hanging portion 30 of the movable member 4 and the hanging wire is wound up, the upward movement of the movable member 4 is prevented by the fixed member 3 and the two members 3 and 4 are integrated. The pile 2 is lifted up, and in this state, the pile 2 is moved to a predetermined position of the pile driver and settled. After fixing the stakes 2, if the hanging wire is lowered, the movable member 4 can be lowered to the vicinity of the ground because the downward movement is not restricted, and the hook of the winch is removed from the hanging portion 30 and the locking pin is released. 26 is removed and both the divided bodies 21 and 21 are opened, and the movable member 4 is removed from the pile. Next, the pile 2 is gradually embedded with only the fixing member 3 attached, and when the fixing member 3 reaches the vicinity of the ground, the burying work is temporarily stopped, the nut 13 is loosened, and the two halves 5 and 5 are opened. The fixing member 3 is removed from the pile, and then the pile 2 is buried up to a desired portion. The reason why the movable member 4 is removed from the pile 2 is that it does not interfere with the burying work.

A hanging bracket 60 shown in FIGS. 6 and 7 is another embodiment. The difference from the above embodiment is that the fixing member 3 has a protruding piece 31 on a part of the outer peripheral surface of one half body 5. The movable member 4 is provided so as to protrude outward.
A pair of fitting pieces 32, 32 for fitting the protruding pieces 31 are provided on a part of the outer peripheral surface so as to protrude outward and upward.
Insertion holes 35, 3 are provided at the front ends of
5 are provided, and a rotation shaft 36 is provided in both the insertion holes 35, 35, and the suspension portion 30 fixed to both ends of the rotation shaft 36 is swung in a state of straddling the two fitting pieces 32, 32. The movable member 4 is configured to be movable, thereby making it impossible to rotate the movable member 4 in the circumferential direction when attached to the pile 2.

The hanging bracket 60 according to the embodiment shown in FIGS. 6 and 7 is suitable for use in a pile driving machine for a rotary burial method. As shown in FIGS. 8 and 9, the pile 2 used in this construction method has a shape in which a round rod body 41 is projected at the upper end portion in a pinch shape (to the front side and the back side). Further, the pile driving machine 42 is roughly configured such that the rotation driving means 44 is moved up and down along the leader 43 in an upright state to mount and bury the pile 2, and the lower end of the leader 43 is the lower portion of the pile 2 lifted. A steady rest 45 is provided for holding so as to hold. A cap 46 for fitting the upper end of the pile 2 is connected to the lower side of the rotation driving means 44. The substantially T-shaped window 4 into which the rod 41 of the pile 2 is fitted is connected to the cap 46.
7 is provided. In addition, a winch (not shown) and a guide portion 49 for the hanging wire 48 are provided on the rotation driving means 44 so that the upper end portion of the hoisted pile 2 is located substantially directly below the cap 46. Reference numeral 50 is a hanging wire 48
, 51 is a winch attached to the body of the pile driver, 52 is a hanging wire drawn from the winch 51, 5
Reference numeral 3 denotes a hook of the suspension wire 52.

The hanging fitting 60 is used as follows. The fixing member 3 is attached so that the protruding piece 31 is positioned directly below the rod 41 of the pile 2, and the protruding piece 31 is fitted between the two fitting pieces 32, 32.
The movable member 4 is attached to the lower side of the
So that it is directly under 1. In this state, if the pile 2 is lifted and its lower part is held by the steadying means 45,
The guide portion 49 positions the upper end portion of the pile 2 substantially directly below the cap 46. Then, the cap 46 is rotated by the rotation driving means 44 so that the hanging wire 48 moves up and down on the center line of the window 47, and the rod 41 of the pile 2 is positioned directly below the window 47.
After that, the rotary drive means 44 is lowered or the suspension wire 48 is
The rod body 41 is fitted into the window 47 to wind up the pile 2
To settle. After that, only the operation of lowering the rotation driving means 44 is performed to bury the pile 2, but the hanging wire 48 drawn out from the winch of the rotation driving means 44 is passed through the guide portion 49 if the pile driving machine main body is used. When the hanging wire 52 drawn from the winch 51 is passed through the guide 49,
It is necessary to perform a troublesome operation in which the operation of lowering the rotation driving means 44 and the operation of lowering the hanging wire 52 are synchronized. Otherwise, the hook 53 is hooked on the guide portion 49 and the rotation driving means 44 does not lower (in the worst case). (Breaking) danger.

The hanging metal fitting of the present invention is not limited to the above embodiment. For example, the fixing member 3 may have a structure in which both ends of the two half bodies 5 and 5 are joined and fastened by the fastening portion 7, or a bolt or a nut may be used instead of the locking pin 26 of the movable member 4. Also, a pair of fitting pieces 3
2 and 32, the movable member 4 may be provided with a protruding piece 31, and a part of the protruding piece 31 may be provided with a hanging portion 30.

[0019]

As described above, the hanging metal fitting of the present invention mounted on a pile has a structure in which the pile is fixed at a predetermined position of a pile driver, the hanging wire is lowered, the movable member is lowered to near the ground, removed, and then buried. Since the work is temporarily stopped when most of the pile is buried and the fixing member is removed on the ground, the removal work from the pile can be safely performed on the ground.

When the projecting piece and the pair of fitting pieces are provided (claim 2), the pile driving machine for the rotary burying method is set so that the suspension wire moves up and down near the cap, and Attach both members so that the hanging part is located directly below,
If the pile is lifted and the direction of the hanging portion is adjusted to the window of the cap, the rod naturally fits into the window, so that the pile can be easily fixed to the pile driver.

[Brief description of drawings]

FIG. 1 is a side view showing an example of use of a hanging metal fitting for a pile according to the present invention.

FIGS. 2A and 2B are plan views of a fixed member and a movable member.

FIG. 3 is a perspective view showing a part of a fixing member.

FIG. 4 is a perspective view showing a fastening portion of a fixing member.

FIG. 5 is a perspective view showing a connecting portion of a movable member.

FIGS. 6A and 6B are plan views showing another embodiment of the hanging fitting.

FIG. 7 is a perspective view showing a state in which projecting pieces are fitted into both fitting pieces.

FIG. 8 is a side view showing a usage state of the hanging metal fitting.

9 is an enlarged view of a main part of FIG.

[Explanation of symbols]

 1, 60 Hanging metal fittings 3 Fixed member 4 Movable member 5 Half body 7 Fastening part 21 Split body 22 Connecting part 30 Hanging part 31 Projection piece 32 Fitting piece

Claims (2)

[Claims] 1. A hanging member (1) for a pile, which is attached to an outer peripheral surface of a pile while being wound thereon, wherein the fixing member (3) is fixed to an outer peripheral surface of the pile in an immovable state; A movable member (4) movably attached thereto, and the fixed member (3) comprises a pair of substantially semicircular half-pieces (5, 5).
5) and a fastening part (7) that butt-joins both half-divided bodies (5, 5) to each other and couples them in an annular shape and tightens them, and the movable member (4) is attached to the lower side of the fixed member (3). Then, a pair of substantially semicircular divided bodies (21, 21)
And a connecting portion (22) for joining the two divided bodies (21, 21) to each other to join them in an annular shape, and projecting a hanging portion (30) hooked to a winch hook on one divided body (21). A hanging metal fitting for a pile, characterized in that the movable member (4) is restricted in its upward movement range by a fixed member (3). 2. A pair of members (3, 4) having a projecting piece (31) provided on a part of one outer peripheral surface and a projecting piece (31) fitted on a part of the other outer peripheral surface. Mating piece (3
2. The hanging metal fitting for a pile according to claim 1, wherein the metal fittings (2, 32) are provided to face each other.