JPH026110Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a holder for a foundation pile that grips the foundation pile and lowers it while rotating it.

[Conventional technology and problems of the present invention]

Conventionally, the foundation pile is suspended from the pile driver main body, and the rotation from the pile driver's rotary drive device is transmitted to the foundation pile.
A holder for a foundation pile that grips the foundation pile and lowers it while rotating is known. however,
Conventional retainers do not sufficiently transmit rotation to the pile, and because the distance between the side wall of the cap and the outer periphery of the foundation pile is large, they do not provide sufficient protection against shaking when the foundation pile is held vertically. Nakatsuta.

The present invention has been made to eliminate these drawbacks of conventional products.

[Means for solving problems and their effects]

The foundation pile holder of the present invention is shown in a perspective view from above in Figure 1, a perspective view from below with the lower part partially removed in Figure 2, and a central sectional view in Figure 3. In a holder for a foundation pile that grips and rotates a foundation pile while lowering it, there is a head flange-like body 1 for transmitting rotation from a rotary drive device, and a head flange-like body 1 continuous with the head flange-like body 1 for hanging the pile at the lower end. at least 2
A cylindrical body 3 having a book hook 2, and a cap-shaped pile vertically extending to the lower end longer than the lower end of the hook 2, which is integrated with the cylindrical body 3 by a plurality of skirt-like members 4. This is a holder for a foundation pile characterized by consisting of a holder 5.

The head flange-like body 1 is provided with a step on the flange, for example, as shown in the drawing, in order to transmit rotation from a rotational drive device.

The cylindrical body 3 that is continuous with the head flange-like body 1 is provided with at least two hooks 2 at the lower end for hanging the pile, and a plurality of skirt-like members 4 are provided to maintain the verticality of the cap-like pile. This is a part for integrating the holder 5. and cylindrical body 3
At least two hooks 2 provided at the lower end of the
When the holder of the present invention is rotated in the forward direction, the lower horizontal protrusion is inserted into the hollow part of the pile at the lower end of the horizontal bar 9 fixed on the upper end plate 8 of the pile 7 shown in FIG. 4, for example. In this manner, the lower horizontal projections of the two hooks 2 are attached facing in the forward rotation direction. With such a structure, rotation from the rotary drive device can be reliably transmitted to the pile 7.

When connecting a pile to the top of the pile 7, for example, as shown in FIG. 5, if a bolted horizontal rod 10 is used, the horizontal rod 10 can be easily attached and detached. Also, as shown in Figure 6,
A horizontal bar 11 is attached to the inside of the upper end plate 8 of the pile 7.
By attaching the horizontal bar 11, the piles can be joined without removing the horizontal bar 11.

On the other hand, when the pile 7 is buried and reaches the foundation, if the holder is rotated in the opposite direction, the holder will separate from the pile 7.

In addition, as mentioned above, only the hook 2 is provided at the lower end of the columnar body 3, and it is relatively lightweight, so when attaching the foundation pile holder of the present invention to the pile 7 or removing it from the pile 7. The amount of power applied from the rotary drive device to the rotary drive device, etc., can be reduced accordingly.

Furthermore, since the cap-shaped pile verticality holder 5 extends to the lower end longer than the lower end of the hook 2,
When attaching the foundation pile holder of the present invention to the pile 7, the lower end of the hook 2 is attached to the horizontal bar 9 fixed to the pile 7,
10 and 11, the cap-shaped pile verticality retainer 5 is already attached to the outer periphery of the pile 7, so even if the foundation pile retainer of the present invention is rotated, the pile 7 It never comes off.

In addition, even if the foundation pile holder of the present invention is completely attached to the pile 7 and the pile swings when the pile 7 is gripped by the foundation pile holder and the pile 7 is suspended, the pile verticality will be maintained. Since the retainer 5 is fixedly integrated with the cylindrical body 3 which is continuous to the head flange body 1 by means of a plurality of skirt-like members 4 (steel plates in the figure), the pile verticality retainer 5 is independent. There is no rocking, and the pile 7 is reliably held vertically by the pile verticality holder 5, as shown by the chain line in FIG.
Even if the stake 7 swings, the stake 7 does not come off from the hook 2.

[Effect of idea]

The foundation pile retainer of the present invention is easy to attach to the pile because the cap-shaped pile verticality retainer is brought into contact with the outer periphery of the pile before the hook engages with the pile. Since it has a compact and lightweight structure, it can be rotated with less power from the rotary drive device. While exhibiting such excellent effects, the foundation pile holder of the present invention reliably transmits rotation to the pile, and can be used in construction even with piles that do not have protrusions on the outside of the pile, as shown in Figure 6, for example. Moreover, the engagement between the pile and the foundation pile holder of the present invention is reliable, and it has excellent effects such as thorough protection against shaking during pile construction.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the present invention seen from above, FIG. 2 is a perspective view of an example of the present invention seen from below with a portion of the lower part of FIG. FIG. FIG. 4, FIG. 5, and FIG. 6 are perspective views partially showing examples of piles applied to the pile holder of the present invention. 1...Head flange-like body, 2...Hook, 3...
...Cylindrical body, 4...Skirt-like object, 5...Pile verticality holder, 6...Holder suspension bolt hole, 7...
Pile, 8... Upper end plate of the pile, 9... Horizontal bar fixed to the upper side of the upper end plate, 10... Horizontal bar bolted and fixed to the upper side of the upper end plate, 11... of the upper end plate. Horizontal bar fixed inside.

Claims (1)

[Scope of utility model registration request] A holder for a foundation pile that grips and rotates the foundation pile while lowering the foundation pile, which includes a head flange-like body 1 for transmitting rotation from a rotation drive device, and at least two parts continuous with the head flange-like body and for suspending the pile at the lower end. A cylindrical body 3 having a book hook 2, and a cap-shaped pile vertically extending to the lower end longer than the lower end of the hook 2, which is integrated with the cylindrical body 3 by a plurality of skirt-like members 4. A holder for foundation piles, characterized by comprising a holder 5.