JP3520231B2 - Object position adjustment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position adjusting device for an object, and more specifically, for aligning rebars and pipes, for example, when rebars or pipes having one end fixed to each other are welded to each other. The present invention relates to an object position adjusting apparatus suitable for

[0002]

2. Description of the Related Art For example, when a precast concrete beam is used when constructing a reinforced concrete building, a pair of precast concrete beams may be placed in abutment with each other and the reinforcing bars may be welded to each other. In this case, if the reinforcing bars on both sides to be welded are misaligned with each other, there is a disadvantage in terms of strength and workability. Therefore, the positional deviation of the reinforcing bars is corrected within an allowable value before welding.

Conventionally, in the case of correcting such a positional deviation of the reinforcing bar, a method of straightening the reinforcing bar by a crane or the like, a method of straightening the reinforcing bar by a worker pushing or pulling the reinforcing bar, or a hammer or the like is used. There was a method of hitting and straightening.

On the other hand, as shown in FIG. 9, when two reinforcing bars 50, 50, at least one of which is in a free state, are welded and joined, the reinforcing bars 50, 50 are aligned with each other.
The positioning jig 51 may be used, and the positioning jig 51 may be diverted to correct the position of the reinforcing bar of the precast concrete beam.

This positioning jig 51 has a U-shaped base 52 having open upper surfaces on both sides of the same base 52, as shown in FIG.
Reinforcing bar 50 receiving members are provided by providing character-shaped receiving members 53, inserting reinforcing bars 50 inside these receiving members 53, and screwing bolts 54 from the sides of the receiving member 53 toward the inside reinforcing bars 50. The position is adjusted by pressing it against the inner surface of 53.

[0006]

However, the conventional position adjusting method of the reinforcing bar has the following problems. That is, in the method of hoisting the reinforcing bar with a crane, fine adjustment is difficult, and since the crane is exclusively used until the welding of the reinforcing bar is completed, there is a problem that the operating rate of the crane deteriorates.

In the method in which the worker pushes or pulls the reinforcing bar, the force of the worker is limited, so that there is a problem that the thin reinforcing bar can be corrected only in a small amount. Further, the method of hitting the reinforcing bar with a hammer has a problem that fine adjustment is difficult and the reinforcing bar is scratched.

On the other hand, when the positioning jig 51 used for welding and joining the reinforcing bars is used,
Since this positioning jig 51 has originally set the dimensions of each part assuming that the reinforcing bars 50, 50 are free, it is impossible to correct a fixed reinforcing bar like a reinforcing bar of a precast concrete beam. However, the position of the relatively thin reinforcing bar 50 could only be adjusted.

Further, the positioning jig 51 is large in size as a whole because the large receiving members 53, 53 are provided on both sides of the base 52, but a plurality of precast concrete beams have one end. When it is placed on the pillar member and the reinforcing bars are welded and joined, there is a problem that the large positioning jig 51 cannot be used because the reinforcing bars are complicated and complicated and the gap becomes very narrow. It was

Such a problem is not limited to the case where the position of the fixed reinforcing bar is corrected, but the case where the position of the pipe whose one end is fixed is corrected or the position of a heavy object is adjusted. Is the same problem that occurs.

Therefore, an object of the present invention is to provide an object position adjusting device which can easily and finely adjust the position of an object, does not damage the object, and can be used even in a narrow place. And

[0012]

The present invention is a position adjusting device for an object, which is configured as follows in order to solve the above-mentioned technical problems. That is, the present invention includes a moving arm that can be locked to an object whose position is to be adjusted, and a moving holding unit that moves the moving arm in the position adjusting direction of the object and holds the moving arm at a stop position. In the position adjustment of the object, the movement holding means includes a cylindrical frame, a fixed arm for locking the frame to a fixed object in the vicinity of the object, and a longitudinal direction in the frame. A rotatable male screw member and a female screw member screwed into the male screw member are provided, the moving arm is fixed to the female screw member, and at least the moving arm is moved to the tubular frame. It is characterized in that an opening longer than the range is provided and the movable arm projects to the outside from the opening.

Next, the structure of each part will be described. (Movement arm) It is for locking the object to be adjusted in position and applying a biasing force in the adjustment direction, and its shape can be appropriately set according to the object to be adjusted in position. (Frame) The male screw member is housed and the male screw member is rotatably supported, and it is preferable to use an elongated member such as a steel pipe. A longitudinally elongated opening is provided on the side surface of the frame, and the movable arm is exposed to the outside through this opening. (Fixed arm) The fixed arm is for receiving the reaction force acting on the movable arm while being locked to the fixed object, and its shape is appropriately set according to the fixed object to be locked. (Male screw member) As the male screw member, for example, a long all-screw bolt can be processed and used. One end of the male screw member is projected from the frame, and a hexagonal operation portion is provided at the projected portion. The male screw member is rotated by rotating the operation portion. (Female screw member) A relatively long sleeve is formed so that the moving arm can be fixed. Further, since a reaction force acting on the moving arm is applied, a high-strength steel material or the like is used.

According to the present invention, the female screw member is linearly moved by rotating the male screw member while the fixed arm is locked to the fixed object and the movable arm is locked to the object whose position is to be adjusted. Then, the moving arm fixed to the female screw member moves and positions the object whose position is to be adjusted.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an object position adjusting apparatus according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an object position adjusting device 1 of the present invention. In the present embodiment, in the case of adjusting the position of one rebar 31 in order to align the rebars 31 and 31 when welding and joining the rebars 31 and 31 of the two precast concrete beams 3 (FIG. 4). Will be described.

The position adjusting device 1 moves the moving arm 11 in the direction of adjusting the position of the reinforcing bar 31, and the moving arm 11 that locks the reinforcing bar 31, which is an object to be adjusted in position, and urges it in the direction of adjusting position. In addition, it is provided with a moving holding means 12 for holding the moving arm 11 at the stop position.

Since the moving arm 11 receives a considerably large reaction force from the reinforcing bar 31, it is formed of a relatively thick steel plate in a rectangular shape. This moving arm 11 is a moving holding means 1
It is moved up and down in the figure by 2 and is held at the stop position.

The moving means 12 includes a cylindrical frame 13 and
A fixed arm 14 attached to one end of the frame 13, a rotatable male screw member 15 arranged in the longitudinal direction in the frame 13, and a female screw member 16 screwed into the male screw member 15. I have it. The moving arm 11 is attached to the female screw member 16.

The tubular frame 13 supports the entire apparatus and is made of a material having high strength. In the present embodiment, the frame 13 is formed using a steel pipe having an appropriate diameter.

On the side surface of the frame 13, as shown in FIG. 2, an elongated opening 1 extending in the longitudinal direction of the frame 13.
7 is provided. The opening 17 is for passing the moving arm 11, and its width is slightly larger than the width of the moving arm 17. The length of the opening 17 is
The moving range of the moving arm 11 is determined, and can be appropriately set according to the purpose of use. The end of the frame 13 on the fixed arm 14 side is closed by a lid 18 as shown in FIG.

The fixed arm 14 receives the reaction force acting on the moving arm 11 by being locked to the fixed object 4 in the vicinity of the reinforcing bar 31 which is the object whose position is to be adjusted. Since a relatively large force is applied to the fixing arm 14, it is formed of, for example, a relatively thick steel plate in a U shape as shown in FIG. 3, and its open end is fixed to the end of the frame 13. ing.

The male screw member 15 shown in FIG. 1 can be used, for example, by partially modifying all screw bolts. Both ends of the male screw member 15 are supported by the frame 13 via bearings 19 and 19, so that the male screw member 15 is rotatable. The upper end of the male screw member 15 in the figure projects outward from the frame 13, and the hexagonal operation portion 20 is provided in the projecting portion.

The moving arm 11 is fixed to the female screw member 16 screwed into the male screw member 15. Since the female screw member 16 receives a reaction force acting on the moving arm 11, the female screw member 16 is formed of a steel material having high strength in a relatively thick sleeve shape, and the inner surface thereof has the male screw member 1
A female screw to be screwed with the screw 5 is provided.

Next, the operation of the position adjusting device 1 will be described. Now, as shown in FIG. 4, for example, a concrete pillar 4
When the end portions of the two precast concrete beams 3 and 3 are placed on top of each other and the reinforcing bars 31 and 31 of these precast concrete beams 3 and 3 are welded and joined, the reinforcing bars 31 and 31 are displaced from each other. I have been doing.

This is a precast concrete beam 3,
Reinforcing bars 31, 31, which were in the regular position when manufacturing 3,
For example, this is due to a cause such as bending by colliding with another object during transportation.

In this case, if welding is performed while the reinforcing bars 31 and 31 are displaced, there is a problem in terms of workability and strength. Therefore, the positions of the reinforcing bars 31 and 31 are adjusted so that their centers are within an allowable value. Need to match.

Therefore, the position adjusting device 1 of the present invention can adjust the position of at least one of the reinforcing bars 31 to align the reinforcing bars 31, 31 on both sides. Here, a case of adjusting the position of the reinforcing bar 31 at the lower right of the drawing will be described.

In this case, first, the position adjusting device 1 is brought near the lower right reinforcing bar 31 in the figure, and its fixing arm 14 is locked to a fixed object near the reinforcing bar 31, for example, a concrete column 4. Here, the fixed arm 14 is attached to the concrete column 4
It is locked by placing it on top. Then, as shown in FIG. 5, the moving arm 11 is arranged below the reinforcing bar 31 whose position is to be adjusted.

Next, the operating portion 20 of the moving holding means 12 is turned to raise the moving arm 11 and the rebar 3 to be adjusted in position.
Lock on the underside of 1. From this state, when the operation unit 20 is further rotated in the same direction, the moving arm 11 moves further upward. Thereby, the reinforcing bar 31 on the moving arm 11
Is also moved upward and the position is adjusted. At this time, since the moving arm 11 linearly moves with a screw, fine adjustment is possible.

Then, as shown by a two-dot chain line in FIG.
When the amount of deviation between the centers of the reinforcing bars 31, 31 arranged opposite to each other falls within an allowable value, the rotation of the operation unit 20 is stopped. Then, the moving arm 11 stops at that position, and the reinforcing bars 31 and 31 are held in the aligned state. With this, the reinforcing bars 31, 31 can be welded and joined.

At this time, the reaction force of the reinforcing bar 31 acts on the moving arm 11, but the male screw member 15 and the female screw member 1
Since the movable arm 11 is moved in combination with 6, the movable arm 11 is held at the position after the movement without being returned to the original position by the reaction force.

In the above-mentioned embodiment, the case of adjusting the position of one reinforcing bar 31 has been described, but as shown in FIG. 6, two parallel reinforcing bars 31, 31 fixed to the same precast concrete beam 3 are used. The position adjusting device 1 can also be used when adjusting the pitch P of the.

Now, for example, when the pitch P of the reinforcing bars 31, 31 of the precast concrete beam 3 on the right side of the figure is larger than the regular dimension, as shown in FIG. The side surface is locked to the outer surface of one reinforcing bar 31, and the inner surface of the moving arm 11 is fixed to the other reinforcing bar 31.
Lock on the outer surface of. That is, the reinforcing bars 31 and 31 are sandwiched between the fixed arm 14 and the movable arm 11.

Then, in this state, when the operating portion 20 is rotated to move the moving arm 11 to the fixed arm 14 side, the moving arm 11 and the fixed arm 14 move in the direction of approaching at the same time. As a result, the pitch P of the reinforcing bars 31 and 31 is reduced, and the size can be adjusted to a regular size. Also in this case, simply by stopping the operation of the operation unit 20,
The movable arm 11 can be held at the position after the movement, and the rebar 31,
The reaction force of 31 does not cause the moving arm 11 to return to its original position.

As described above, according to the object position adjusting device 1 of the present invention, the position of the object such as the reinforcing bar 31 can be adjusted only by operating the operating portion 20 of the male screw member 15, so that the operability is good. In addition, since the impact force is not applied to the reinforcing bar 31, it is possible to prevent the reinforcing bar 31 from being damaged.

Further, in the position adjusting device 1, the fixed frame 14 is only attached to one end of the cylindrical frame 13, and it is formed thin as a whole. Therefore, for example, as shown in FIG. , 33 are arranged vertically and horizontally, and even if the gap between the reinforcing bars 32, 33 is narrow, the position adjusting device 1 can be put in the gap and used.

In the above embodiment, the case where the position of the reinforcing bar 31 having one end fixed is adjusted has been described. However, the position adjusting device of the present invention, for example, enlarges the reinforcing bar interval,
It can be suitably used for expanding the distance between the reinforcing bar and the concrete, lifting the reinforcing bar in the formwork, or adjusting the position of heavy objects.

[0039]

As described above, according to the present invention,
By rotating the male screw member, the moving arm can be moved linearly to adjust the position of the object, and by simply stopping the rotation of the male screw member, the object can be held at the position after adjustment, resulting in good operability. Become. Further, since the moving arm is linearly moved by the screw, fine adjustment becomes possible.

Furthermore, since no impact is applied to the object during position adjustment, it is possible to prevent the object from being scratched. Further, since the frame has a tubular shape and can be formed thin as a whole, it can be used even in a narrow place.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an object position adjusting device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a diagram showing a usage state of the object position adjusting apparatus according to the present invention.

5 is a cross-sectional view taken along line CC of FIG.

FIG. 6 is a diagram showing a usage state of the object position adjusting apparatus according to the present invention.

7 is a cross-sectional view taken along the line DD of FIG.

FIG. 8 is a top view showing a usage state of the object position adjusting apparatus according to the present invention.

FIG. 9 is a diagram showing a positioning jig according to a conventional example.

10 is a sectional view taken along line EE of FIG.

[Explanation of symbols]

1 Object position adjustment device 4 fixed objects 11 moving arm 12 Moving and holding means 13 frames 14 Fixed arm 15 Male screw member 16 Female screw member 17 openings 31 Reinforcing bars (objects whose position should be adjusted)

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-2-53580 (JP, A) JP-A-2-229674 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16H 25/20 B23K 37/053

Claims (2)

(57) [Claims] 1. A wire member protruding from existing concrete
The distance between a moving object and a fixed object near the object
Or two of the above, protruding from the existing concrete
Adjust the position of the object by expanding / reducing the distance between the objects
In the object position adjusting device, the position adjusting device is formed of a thick plate having a high strength to the object to be position adjusted.
The moving holding means includes: a moving arm that locks and biases the moving arm in the position adjusting direction; and a moving holding unit that moves the moving arm in the position adjusting direction of the object and holds the moving arm at a stop position. Is made of a strong tubular member to support the entire device.
It is a frame, a fixed arm attached to one end of said frame, and a longitudinally Kai disposed rolling freely male screw member within said frame, said moving arm mounted, threaded on the male screw member and a input females threaded member, the frame, the longitudinal direction of its sides, fine for passing said moving arm
A long opening is provided and the fixed arm is located at or near the object to be aligned
It is locked to a fixed object and receives a reaction force that acts on the moving arm.
Therefore, it is formed of a thick plate having high strength, and the upper end portion of the male screw member projects outward from the frame.
A position adjusting device for an object, characterized in that a hexagonal operation part is provided in the . 2. The position adjusting device for an object according to claim 1, wherein the object is a reinforcing bar projecting from a reinforced concrete member.