JP2510059B2 - Rebar cage construction machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rebar cage construction machine for use in underground wall construction, for example.

[0002]

2. Description of the Related Art Up to now, a reinforced basket has been erected by a suspension of two or three cranes.

[0003]

In the conventional suspension of two or three cranes, (1) the weight of the rebar cage is very large, for example, 60 tons, and the rebar cage may be deformed by the suspension load. is there.

(2) It is difficult to secure a work space that can be suspended.

(3) The safety of work is reduced due to the influence of wind and the like.

An object of the present invention is to provide a rebar cage construction machine that prevents deformation of the rebar cage and saves a work space to safely construct the rebar cage.

[0007]

According to the present invention, there is provided a base, and a base provided with a hook of a reinforcing bar cage which is pivotally attached to the base at one end thereof and which is rotated from a horizontal position to an upright position. A built-up jack interposed between the pedestal and the base, an arm whose one end is guided by a rail attached to the base and the other end is pivotally attached to the pedestal, and the arm. A lock device for locking the rail when the pedestal is raised is provided.

The lock device preferably comprises a through hole formed in the rail and the arm, a pin for engaging the through hole, and a cylinder for inserting the pin into the through hole.

The angle of the standing position is preferably 70 °, for example.

[0010]

In the rebar cage construction machine configured as described above, the rebar cage is placed on the pedestal in the horizontal position and the hooking object is hooked, and then the erected jack is extended and passed through the gantry. Rotate the rebar cage to the standing position. Therefore, one end of the arm that has moved on the rail following the rotation of the pedestal is locked to the rail by a locking device to ensure safety against an accident of a raised jack.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3, a pair of brackets 2 are erected on one end of a base 1 having a substantially rectangular plane.
The brackets 2 have the reference numeral 1 as a whole through a pin 3.
One end of the pedestal designated by 0 is pivotally attached. A pair of jack brackets 4 are erected on the base 1 at a position slightly apart from the brackets 2, and a lower portion of a standing jack 5 is pivotally attached to the brackets 4. A bracket 11 projecting from the pedestal 10 is pivotally attached to the upper end of the jack 5 so that the pedestal 10 can be rotated from the horizontal position P to an upright position U at an angle θ (for example, 70 °) when extended. It has become.

A hook 12 is projectingly provided on the upper surface of the cradle 10 facing the jack 5, and a scaffold 13 is provided on one side and an end of the cradle 10 on the hook 12 side. In addition, a scaffold 6 that can move up and down from the scaffold 13 is provided above the base 1.

On the other hand, on the upper surface of the base 1, a pair of rails 7 are laid in parallel with the receiving base 10. Referring also to FIGS. 4 and 5, the rail 7 has a yoke portion 21 of the arm 20.
A roller 22 pivotally supported by is supported, and an upper end portion of an arm 20 thereof is pivotally attached to a lower front portion of the pedestal 10. Further, there is provided a lock device generally designated by 30 for fixing the arm 20 to the rail 7 when the pedestal 10 is in the standing position U.

The lock device 30 includes a pipe 31 provided orthogonally to the side of the rail 7, a through hole 32 formed in the yoke portion 21, and a bracket 33 provided upright on the base 1.
Slidably supported by the pipe 31 and the through holes 32, 32
And a cylinder 36 fixed to a bracket 35 standing upright on the base 1 and having an operating end 37 connected to the pin 34.

Next, the operation will be described.

When the rebar cage A is to be erected, the rebar cage A is placed on the pedestal 10 at the horizontal position H, and the hook 12 is hooked on the rebar cage A. Next, the erecting jack 5 is extended, and the reinforcing bar basket A is rotated together with the pedestal 10 to the standing position U at an angle θ. At the time of this rotation, the rebar cage A is entirely supported by the pedestal 1.
Since it is supported by 0 and is locked by the hook metal fitting 12, it does not slide down, and its deformation is so small that it can be ignored.

Further, in the standing position U, the arm 20
Is driven by the rotation of the pedestal 10, the roller 22 rolls and moves on the rail 7, and the through holes 32 are aligned with the inner hole of the pipe 31. Then, the cylinder 26 is extended, the pin 34 is inserted into the pipe 31 and the through hole 32, and the lower end of the arm 20 is locked to the rail 7. Therefore, a fall accident of the rebar basket due to a failure of the built-up jack 5 or the like is prevented.

Originally, when the rebar cage A was erected, a temporary cradle was required, so that the reinforced basket A can be erected in substantially the same space as the cradle 10.
Work space is saved.

[0020]

Since the present invention is configured as described above, it is possible to prevent deformation of the rebar cage, save the work space, and safely construct the rebar cage.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a front view showing a lock device.

5 is a side view of FIG.

[Explanation of symbols]

 A ... Reinforcing bar cage H ... Horizontal position U ... Standing position 1 ... Base 2 ... Bracket 3 ... Pin 4 ... Jack bracket 5 ... Erecting jack 6 ... -Scaffolding 7 ... Rails 10 ... Cradle 11 ... Brackets 12 ... Hooks 13 ... Scaffolds 20 ... Arms 21 ... Yoke 22 ... Rollers 30 ... Locks Device 31 ... Pipe 32 ... Through hole 33, 35 ... Bracket 34 ... Pin 36 ... Cylinder 37 ... Operating end

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Manabe 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Yuji Kitamura 1-4-6 Moto-Akasaka, Minato-ku, Tokyo Inside Chem Kalgout Co., Ltd.

Claims (1)

(57) [Claims] 1. A pedestal, a pedestal having one end pivotally attached to the pedestal, and a reinforced basket hook that is pivoted from a horizontal position to an upright position, and between the pedestal and the base. A standing jack, an arm whose one end is guided by a rail attached to the base and the other end is pivotally attached to the pedestal, and the arm is attached to the rail when the pedestal is erected. A rebar cage construction machine characterized by having a locking device for locking.