JP4073716B2 - Concrete block lifting reversing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is, for example, a lifting and reversing device such as a concrete block having a substantially rectangular parallelepiped shape such as a boundary block installed on a side groove block with a slit that is laid on both sides of a road or both sides of a tunnel to form a side groove. It is about.
[Prior art]
For example, in a side groove block with a slit, the outside on the upper surface side and a hollow path that functions as a water channel or the like inside the side groove block are communicated by a slit formed in the upper surface portion.
[0002]
In recent years, there has been a rapid increase in demand for the side groove block provided with the slit on the upper surface. For example, side grooves using the side groove block with the slit are formed on both sides of the tunnel in the tunnel and are often laid. It can be seen.
[0003]
When it rains, a large amount of rainwater or the like that has flowed into the roadway flows into the internal hollow passage from the slit provided in the side groove.
[0004]
Therefore, a partition block member generally called a boundary block is usually installed on the side groove with the slit in the longitudinal direction. In view of the necessity for a large number of the boundary blocks, There is a demand for production at a low production cost that can be reliably produced.
[0005]
Here, the boundary block is formed as a rectangular parallelepiped concrete block having a substantially trapezoidal cross section, and in the formation thereof, concrete is filled in a rectangular parallelepiped mold having a substantially inverted trapezoidal cross section, Solidify and demold to create.
[0006]
Even if the mold is removed from the formwork, it must be lifted upward and removed, but no lifting reversal device that can be removed successfully, can be lifted easily and reversed, and can be transported smoothly has not been proposed. Was the current situation.
[Problems to be solved by the invention]
Thus, the present invention was devised to cope with the above-mentioned conventional problems. For example, even when the boundary block is removed from the formwork, it can be removed well, and it can be lifted up easily and reversed, smoothly. An object of the present invention is to provide a lifting and reversing device that can be transported.
[Means for Solving the Problems]
The concrete block lifting and reversing device according to the present invention is
It is a concrete block lifting and reversing device that has a substantially rectangular shape and is provided with a locking recess having a disk shape with a large diameter from the bottom surface toward the opening side on both end faces in the length direction.
A pressing and locking body having a pair of disk-shaped pressing portions that fit into the disk-shaped locking recesses formed on both end surfaces of the concrete block to be lifted and inverted;
Formed in a substantially L shape by a support portion that rotatably supports the presser engaging body having the pair of disc-shaped presser portions and a horizontal arm portion that extends in a substantially horizontal direction from the support portion. A pair of sandwiched arms,
The horizontal arm portion of the pair of sandwiching arms and the first connecting rod are connected via a pivotable shaft provided on the support portion side of the horizontal arm portion , and the first connecting rod and the horizontal holding rod are A horizontal holding rod provided such that the pair of sandwiching arms can be rotated by the first connecting rod through pivotable pivot support portions at both longitudinal ends of the horizontal holding rod;
The horizontal arm portions and the horizontal holding rods constituting the pair of sandwiching arms are rotatably connected via an intermediate connecting portion and a rear end connecting portion of a second connecting rod, and are horizontally connected to the second connecting rod. A lifting rod is a horizontal lifting rod connected through a pivotable tip connecting portion, and
With
The second connecting rod is attached to an inner position from the attachment position of the first connecting rod and substantially parallel to the first connecting rod,
The presser locking body is provided to protrude on the distal end side of the support portion so as to face each other in a direction parallel to the horizontal arm portion,
The horizontal lifting rod is provided with a long hole extending in the horizontal direction, and a tip connecting portion provided at an end of the second connecting rod is fitted into the long hole so as to be movable in the horizontal direction. The connection fence is connected,
When the concrete block is lifted, the tip connecting portion provided at the second connecting rod end moves to the both end portions of the long hole, and the pair of holding and locking bodies in the pair of sandwiching arms are Moved so that the upper surface of the pressing portion is in contact with the bottom surface of the disk-shaped locking recess formed on both end surfaces of the concrete block to be reversed.
The concrete block is lifted so as to be rotatable around the disk-shaped locking recess as a rotation axis.
It is characterized by this.
DETAILED DESCRIPTION OF THE INVENTION
The concrete block lifting and reversing device according to the present invention will be described below with reference to the drawings.
[0007]
The lifting and reversing device 1 according to the present invention includes a pair of sandwiching arms 2 and 2, a horizontal holding rod 3, and a horizontal lifting rod 4.
[0008]
Here, the pair of sandwiching arms 2 has a substantially disk-shaped presser locking body 5 that fits into circular locking recesses formed on both ends in the longitudinal direction of the concrete block to be lifted and inverted, and the presser A support portion 6 that supports the locking body 5 in a rotatable manner and a horizontal arm portion 7 that extends horizontally from the support portion 6 are configured.
[0009]
That is, the pair of sandwiching arms 2 is formed in a substantially L shape by the support portion 6 and the horizontal arm portion 7, and the pressing and locking body 5 is the same as the horizontal arm portion 7 on the tip side of the support portion 6. It is mounted in a protruding direction.
[0010]
Further, the horizontal holding rod 3 and the pair of sandwiching arms 2 and 2 are rotatably connected via a first connecting rod 8.
[0011]
That is, the shaft support portions 9 and 9 are provided at both ends of the horizontal arm portions 7 and 7 on the support portion 6 side of the pair of sandwiching arms 2 and 2, and the shaft support portions 9 and 9 are provided at both ends in the longitudinal direction of the horizontal holding rod 3. 9 is provided, and the horizontal holding rod 3 and the pair of sandwiching arms 2 and 2 are rotatably connected.
[0012]
Next, as can be understood from FIGS. 1 and 2, the horizontal lifting rod 4 is configured by a plate-like member extending horizontally, and a hook portion 10 for lifting is provided above the intermediate position.
Further, an elongated operating hole 11 extending in the horizontal direction is provided in the longitudinal direction of the horizontal lifting rod 4, and the distal end connecting portions 16, 16 of the pair of second connecting rods 12, 12 are provided in the elongated operating hole 11. The intermediate connecting portions 17 and 17 which are supported so as to be movable in the direction of the long hole of the operation long hole 11 and are located approximately in the middle of the second connecting rods 12 and 12 are rotatably connected to the horizontal holding rod 3. Further, on the rear end side, the rear end connecting portions 18 and 18 are rotatably connected to the front ends of the horizontal arm portions 7 and 7 of the pair of sandwiching arms 2 and 2. The use state of the lifting and reversing device 1 according to the present invention will be described above.
[0013]
Here, as a concrete block which is lifted and reversed by the lifting and reversing apparatus 1 of the present invention, first, what is called a so-called boundary block 13 can be mentioned.
[0014]
As is understood from FIGS. 3 and 4, the boundary block 13 is formed in a rectangular parallelepiped shape with a substantially trapezoidal cross section. It is framed in a rectangular parallelepiped shape. Here, the formwork apparatus 14 shown in FIG. 3 is a formwork apparatus 14 capable of creating two boundary blocks 13.
The concrete is then filled into the formwork apparatus 14 thus framed and cured for a certain period of time to solidify the concrete.
[0015]
Thereafter, the outer molds at both ends in the longitudinal direction are opened, and the presser locking bodies 5, 5 attached to the leading ends of the horizontal arm portions 7 in the locking recesses 15, 15 formed on both end surfaces in the longitudinal direction of the boundary block 13. And the hook portion 10 provided in the middle of the horizontal lifting rod 4 of the lifting and reversing device 1 is lifted upward.
[0016]
Then, as shown in FIG. 2, the distal end connecting portions 16, 16 of the second connecting rods 12, 12 move in the operating slot 11 of the horizontal lifting rod 4 as shown in FIG. 2, and the operating slot 11 It will be located in the edge part side.
[0017]
As a result, the second connecting rods 12 and 12 and the first connecting rods 8 and 8 are each moved by a force that moves toward the center in the longitudinal direction of the boundary block 13, so that the boundary block 13 is moved upward by the pair of horizontal arm portions 7 and 7. It is lifted and removed from the formwork device 14.
Thereafter, the suspended boundary blocks 13 are rotated 180 degrees with the locking depressions 15, 15 provided on both end faces in the longitudinal direction as rotation axes, and are arranged in a normal state from a so-called reverse direction.
【The invention's effect】
Thus, the present invention has the above configuration.
[0018]
And if it is the concrete block suspension apparatus by this invention, even when removing from a formwork apparatus at the time of concrete block production, such as a boundary block, it can perform a demolding work well, and it can be lifted and reversed easily once. It has an excellent effect that it can be installed smoothly and in a normal state.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram (part 1) illustrating a schematic configuration of a concrete block suspension device according to the present invention.
FIG. 2 is an explanatory diagram (part 2) illustrating a schematic configuration of a concrete block suspension device according to the present invention.
FIG. 3 is a configuration explanatory diagram illustrating a state in which a boundary block is manufactured.
FIG. 4 is an explanatory diagram of a boundary block.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lifting reversing device 2 Nipping arm 3 Horizontal holding rod 4 Horizontal lifting rod 5 Pressing locking body 6 Support part 7 Horizontal arm part 8 First connection rod 9 Shaft support portion 10 Hook portion 11 Operation long hole 12 Second connection rod 13 Boundary block 14 Formwork device 15 Locking recess 16 Front end connecting portion 17 Intermediate connecting portion 18 Rear end connecting portion

Claims (1)

It is a concrete block lifting and reversing device that has a substantially rectangular shape and is provided with a locking recess having a disk shape with a large diameter from the bottom surface toward the opening side on both end faces in the length direction.
A pressing and locking body having a pair of disk-shaped pressing portions that fit into the disk-shaped locking recesses formed on both end surfaces of the concrete block to be lifted and inverted;
Formed in a substantially L shape by a support portion that rotatably supports the presser engaging body having the pair of disc-shaped presser portions and a horizontal arm portion that extends in a substantially horizontal direction from the support portion. A pair of sandwiched arms,
The horizontal arm portion of the pair of sandwiching arms and the first connecting rod are connected via a pivotable shaft provided on the support portion side of the horizontal arm portion , and the first connecting rod and the horizontal holding rod are A horizontal holding rod provided so that the pair of sandwiching arms can be rotated by the first connecting rod through pivotable pivot support portions at both longitudinal ends of the horizontal holding rod;
The horizontal arm portions and the horizontal holding rods constituting the pair of sandwiching arms are rotatably connected via an intermediate connecting portion and a rear end connecting portion of a second connecting rod, and are horizontally connected to the second connecting rod. A lifting rod is a horizontal lifting rod connected through a pivotable tip connecting portion, and
With
The second connecting rod is attached to an inner position from the attachment position of the first connecting rod and substantially parallel to the first connecting rod,
The presser locking body is provided to protrude on the distal end side of the support portion so as to face each other in a direction parallel to the horizontal arm portion,
The horizontal lifting rod is provided with a long hole extending in the horizontal direction, and a tip connecting portion provided at an end of the second connecting rod is fitted into the long hole so as to be movable in the horizontal direction. The connection fence is connected,
When the concrete block is lifted, the tip connecting portion provided at the second connecting rod end moves to the both end portions of the long hole, and the pair of holding and locking bodies in the pair of sandwiching arms are Moved so that the upper surface of the pressing part is in contact with the bottom surface of the disk-shaped locking recess formed on both end surfaces of the concrete block to be reversed.
The concrete block is lifted to be rotatable about the disk-shaped locking recess as a rotation axis.
A concrete block lifting and reversing device characterized by that.

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