JPH0578092A - Inverse machine for heavy l-shaped concrete object - Google Patents

Abstract

PURPOSE:To provide an inverse machine for L-shaped concrete heavy objects which allows heavy L-shaped concrete objects, in particular, heavy concrete objects such as side ditches manufactured like a L skape with a large length to safely and efficiently inversed in the longitudinal direction, CONSTITUTION:An inverse machine consists of a pair of rotors 104a, 104b provided opposite to each other, pads 109a, 109b and 110a, 110b which are provided on the rotors 104a, 104b and apply pressure to end sides of a heavy L shaped concrete objects, a hydraulic pressure device 107 which pushes the rotors 104a, 104b to the heavy L-shaped concrete object, and a motor which rotates the rotors 104a, 104b. Engagement bodies 111a, 111b and 112a, 112b which engage with end surfaces defined by individual sides composing the heavy L-shaped concrete object are provided on the rotors 104a, 104b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an L-shaped concrete heavy material inverting machine. Specifically, an L-shaped concrete heavy object, in particular, an L-shaped concrete heavy object capable of safely and efficiently reversing a long L-shaped concrete heavy object such as a side groove in its longitudinal direction. Regarding the reversing machine.

[0002]

2. Description of the Related Art Conventionally, in the case of reversing an L-shaped concrete heavy object around its longitudinal direction, methods shown in FIGS. 5 to 8 have been adopted. That is, first, the wire 3 is passed through the hook 2 embedded on the outer surface side of one side of the L-shaped concrete heavy object 1, and the hoist 4 lifts it from the inside of the production mold (not shown) to bring it into a suspended state. ,
The same L-shaped concrete heavy object 1 is moved to the place where it is inverted. Then, the wire 3 is gradually loosened so that the L-shaped concrete heavy object 1 is laid down sideways. Then, the hook 2 that obstructs the reversal is removed. And
The wire 2 was passed through the bolt hole 5 provided on the other outer surface side where the hook 2 was not embedded, and was pulled up by the hoist 4 to reverse the L-shaped concrete heavy object 1 as shown in FIG.

[0003]

However, in such a conventional reversing work, it is necessary for a plurality of workers to work together to support the L-shaped concrete heavy object and to invert it. Since it was also necessary to remove the hook embedded on the outer surface side of one side of the concrete heavy object, it was not possible to perform an efficient reversing operation. In addition, since the concrete heavy object to be inverted is L-shaped, it is difficult to balance it, the balance is lost, the inversion operation becomes unstable, side shake occurs, the wire comes off, etc.
There was also a high risk of injury to the worker. Furthermore, when reversing the L-shaped concrete heavy object, the top of the L-shaped concrete heavy object is once lowered to the ground, so that the L-shaped concrete heavy object may be damaged or cracked at this time. However, until the concrete is hardened sufficiently, the work of reversing the L-shaped concrete heavy object cannot be performed, and the productivity of the L-shaped concrete heavy object cannot be improved.

The applicant of the present invention filed a prior application (Japanese Patent Application No. 62-26).
No. 0489) proposes a reversing machine capable of safely and efficiently reversing concrete heavy objects. As shown in FIG. 9, in the reversing machine 11, rectangular parallelepiped rotary bodies 12a and 12b are rotatably supported on the left and right sides of a frame 13, respectively, and the concrete heavy object X side surface is pressed against the rotary bodies 12a and 12b. Pads 14a and 14b are provided, and a hydraulic device 15 for pressing the rotating body 12a and a motor 16 for rotating the rotating body 12b are provided. Further, the pads 14a and 14b are formed on the concrete heavy object X side motor. Convex metal fittings 20, 2 that engage with the recesses 17, 18
1 is provided. And, the convex metal fittings 20 and 21 of the pads 14a and 14b and the concave portion 1 of the concrete heavy object X
By engaging 7 and 18, the pads 14a, 1
Hold the concrete heavy object X between 4b from the side,
In this state, the rotating bodies 12a and 12b can be rotated to invert the concrete heavy object X.

However, the reversing machine 11 is intended mainly for rotating U-shaped concrete heavy objects, and exhibits a sufficient effect for reversing an L-shaped concrete heavy object which is difficult to balance. could not.

In view of such circumstances, the present invention has been made as a result of intensive research, and was made by further improving the above-mentioned reversing machine suitable for reversing U-shaped concrete heavy objects. Shaped concrete heavy objects, in particular, concrete heavy objects such as gutters made in long L-shape, can be safely and efficiently inverted around its longitudinal direction.
The object is to provide a reversing machine for heavy concrete-shaped objects.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 is that "a pair of rotors arranged to face each other and an L-shaped concrete heavy object provided on the rotors. The pad that presses the side surface of the end and the rotating body are
It comprises a hydraulic device that presses against an L-shaped concrete heavy object, and a motor that rotates the rotating body, and locks the outer surface of the end of each side that constitutes the L-shaped concrete heavy object to the rotating body. The gist is an "inverter for L-shaped concrete heavy objects which is provided with a locking body".

Further, the gist of the invention as defined in claim 2 is "the reversing machine for an L-shaped concrete heavy object, characterized in that the motor is constituted by a geared motor".

[0009]

In the reversing machine for the L-shaped concrete heavy object according to claim 1, the ends of each side of the L-shaped concrete heavy object sandwiched laterally between the pads of the rotating body by a hydraulic device. The outer surface of the part is locked by a locking body provided on the rotating body, so that the L-shaped concrete heavy object does not shift or come off during the reversal and is securely fixed.

According to the reversing machine of the L-shaped concrete heavy object of the second aspect, the L-shaped concrete heavy object can be inverted at an arbitrary angle by rotating the rotating body by the motor. However, in that case, since the geared motor is used, the L-shaped concrete heavy object can be inverted in a stable state even when the center of gravity is largely moved due to the inversion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an L-shaped concrete heavy material reversing machine of the present invention will be described below with reference to the drawings. FIG. 1 shows the entire reversing machine 101 according to the present embodiment, FIG. 2 shows an enlarged left side view of a main part thereof, FIG. 3 shows its right side view, and FIG. Shows a state in which an L-shaped concrete heavy object is clamped and fixed. In FIG. 1, reference numeral 102 is a frame formed in a substantially U shape, and by a hook 103 provided at the upper center portion thereof,
It is designed to be suspended by hoists.
At the tips of both arms 102a and 102b of the frame 102, rectangular parallelepiped rotating bodies 104a and 104b are rotatably supported respectively on the left and right sides, and a rotating shaft of the right rotating body 104b is a motor 105 fixed to the frame 102. Connected to
The right rotating body 104b is formed to rotate 360 ° by driving the motor 105.

In this embodiment, since the motor 105 is a geared motor, the reversing operation can be performed in a stable state even when the center of gravity of the L-shaped concrete heavy object X is largely moved due to reversing. You can do it. The rotation axis of the left rotating body 104a is the frame 1
No. 02 of the left arm 102a is rotatably supported by a sliding body 106 which is formed to be movable left and right, and the sliding body 106 is fixed to the frame 102.
It is connected to 8 shafts.

Long plate-shaped pads 109a, 109b and pads 110a, 110b are provided at both ends of the left rotating body 104a and the right rotating body 104b, respectively, and the pads 109a, 109b, and pad 110a at the respective end portions are provided. , 11
0b is obliquely attached to each of the rotating bodies 104a and 104b in directions orthogonal to each other. Then, these pads 109a, 109b and pads 110a, 1
By 10b, the end side surface of the L-shaped concrete heavy object is clamped and fixed. In addition, the left rotating body 10
The pad 1 is provided on each end surface of the right rotating body 104b and the right rotating body 104b.
09a and 109b, the locking bodies 111a and 111b and the locking bodies 112a and 11 adjacent to the pads 110a and 110b.
2b are provided respectively. These locking bodies 111a, 1
11b and the locking bodies 112a and 112b are the left rotating body 10
4a, the pads 109a, 10 on the right rotating body 104b
9b and the pads 110a and 110b are projected higher than the height position, and the projecting portions lock the outer surfaces of the end portions of the respective sides forming the L-shaped concrete heavy object X. There is.

As described above, the reversing machine 10 according to the present embodiment.
1, the left rotating body 104a moves left and right from the frame 102 by hydraulic pressure, and pads 109a, 1 of the left rotating body 104a,
09b and the pads 110a and 110 of the right rotating body 104b.
The L-shaped concrete heavy object X is clamped and fixed between the same and b, and the L-shaped concrete heavy object X clamped and fixed by rotating the right rotating body 104b by the motor 105 is inverted to an arbitrary angle. It is configured as follows.

Next, the method of use and operation of the reversing machine 101 will be described. First, the worker uses the reversing machine 10
1 is suspended by a hoist or the like and moved to a predetermined position where the L-shaped concrete heavy object X is placed, and then a lever (not shown) of the hydraulic device 107 is operated to operate the hydraulic cylinder 108 to move left and right. Both rotating bodies 104a, 104
Expand the distance between b to the maximum, and lower it so as to sandwich the side faces of both ends of the L-shaped concrete heavy object X.

Next, the lever (not shown) of the hydraulic device 107 is operated to operate the hydraulic cylinder 108, and both rotary bodies 104a and 104b are attached to the side surfaces of the two side edges constituting the L-shaped concrete heavy object X. Pads 109a, 109
b and the pads 110a and 110b are applied, and the L-shaped concrete heavy object X is clamped and fixed at a predetermined pressure. At the same time, the pads 109a, 109b and the pad 110
locking bodies 111a, 1 provided adjacent to a, 110b
The outer surface of the end portion of each side that also constitutes the L-shaped concrete heavy object X is locked by 11b and the locking bodies 112a, 112b. Then, operate the hoist and lift it slightly upward.

Thereafter, a motor switch (not shown)
When the right rotary body 104b is rotated by operating the motor 105, the sandwiched and fixed L-shaped concrete heavy object X starts to rotate, and the left rotary body 104a rotates following this, By stopping the operation of the motor switch (not shown) at the position, the L-shaped concrete heavy object X stops at that position.

That is, the L-shaped concrete heavy object X is 1
Motor switch (not shown) when rotated by 80 °
By stopping the operation of, the L-shaped concrete heavy object X is completely inverted, and then the reversing machine 1
The work of reversing the L-shaped concrete heavy object X is completed by lowering 01 and widening the space between the two rotating bodies 104a and 104b.

Thus, the reversing machine 101 according to the present embodiment.
Are pads 109a, 109b and pad 110
While sandwiching the end side surface of the L-shaped concrete heavy object X between a and 110b, at the same time as the two sides of the L-shaped concrete heavy object X that are configured by the locking bodies 111a and 111b and the locking bodies 112a and 112b. Since the outer surface of the end portion is locked and the L-shaped concrete heavy object X is rotated in this state, the L-shaped concrete heavy object X is not displaced or disengaged, which is safe and efficient. A good flip operation can be performed.

[0020]

According to the present invention, the above-mentioned structure is provided.
In the reversing machine for the L-shaped concrete heavy object described above, the outer surface of the end portion of each side of the L-shaped concrete heavy object sandwiched laterally between the pads of the rotary object by the hydraulic device becomes the rotary object. Since it is locked by the provided locking body, the L-shaped concrete heavy object does not shift or come off during the reversal, and is securely fixed. Therefore, even if the L-shaped concrete heavy object is difficult to balance, it is possible to perform the reversing operation safely and efficiently.

Further, in the L-shaped concrete heavy object reversing machine according to the second aspect, the L-shaped concrete heavy object is reversed at an arbitrary angle by rotating the rotating body by the motor. However, in this case, since the motor is a geared motor, the reversing operation can be performed in a stable state even when a large center of gravity is moved by reversing the L-shaped concrete heavy object.

[Brief description of drawings]

FIG. 1 is a front view showing the entire reversing machine of the present invention.

FIG. 2 is a left side view showing an enlarged main part of the reversing machine.

FIG. 3 is a right side view of the same.

FIG. 4 is an enlarged view of an essential part showing a state where an L-shaped concrete heavy object is sandwiched and fixed between pads.

FIG. 5 is a side view showing a reversing operation of a conventional L-shaped concrete heavy object.

FIG. 6 is a side view showing a conventional work of reversing an L-shaped concrete heavy object.

FIG. 7 is a side view showing a conventional work for reversing an L-shaped concrete heavy object.

FIG. 8 is a side view showing an inversion operation of a conventional L-shaped concrete heavy object.

FIG. 9 is a front view showing another conventional reversing machine.

[Explanation of symbols]

 L-shaped concrete heavy object ... X rotating body ... 104a, 104b Pad ... 109a, 109b, 110a, 110b Hydraulic device ... 107 Motor ... 105 Locking body ... 111a, 111b , 112a, 112b

Claims (2)

[Claims] 1. A pair of rotating bodies that are arranged to face each other, a pad that is provided on the rotating body and presses an end side surface of an L-shaped concrete heavy object, and the rotating body is an L-shaped concrete heavy object. And a motor for rotating the rotating body, wherein the rotating body is provided with a locking body for locking the outer surface of the end of each side constituting the L-shaped concrete heavy object. Inverting machine for heavy objects made of L-shaped concrete. 2. The L-shaped concrete heavy object reversing machine according to claim 1, wherein the motor is a geared motor.