JPH06248799A - Roughening device for reinforced concrete structure - Google Patents

Abstract

PURPOSE:To perform roughening work safely and efficiently without manual work by roughening the reinforced concrete surface while moving a hammer by vertically, horizontally and depth direction moving devices. CONSTITUTION:A vertically moving device 3 is driven to raise a hammer 2 to the specified height, and then a horizontally moving device 4 is driven to reciprocate a moving body holding the hammer 2 horizontally along a guide member. At this time, the hammer 2 is driven to strike the surface of a reinforced concrete structure 1 for roughening. The hammer 2 is moved being energized in the depth direction by a depth direction moving device 5. At the same time, the hammer 2 is constantly brought into contact with the surface of the reinforced concrete structure 1 to perform roughening of the set depth. Concrete falling being smashed is received by a hopper 6 and guided downward in a duct 7. The cylindrical surface can be also roughened by moving the hammer 2 along a curved rail.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roughening device for a reinforced concrete structure for roughening the surface of an existing reinforced concrete structure.

[0002]

2. Description of the Related Art Conventionally, when a new reinforced concrete structure is added to an existing reinforced concrete structure, the surface of the existing reinforced concrete structure is generally roughened or scratched. In addition, when squeezing out, expose the rebar in the existing rebar structure,
I am trying to connect a new rebar to this rebar.

The roughening work and the scrubbing work are carried out by forming a scaffold along an existing reinforced concrete structure, on which the worker rides and laying sideways with a heavy pick hammer or breaker. It was

[0004]

However, since the conventional roughening work and picking work are performed manually by the worker, there is a danger when the work position is high, There is a problem that workers are not able to work hard.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a roughening device for a reinforced concrete structure capable of safely and efficiently performing roughening work or picking work. To do.

[0006]

A roughening device for a reinforced concrete structure according to claim 1 of the present invention comprises a hammer for hitting the surface of a reinforced concrete structure to roughen it, and a vertical movement for vertically moving the hammer. Direction moving device,
A horizontal moving device for moving the hammer in the horizontal direction, and a reinforced concrete structure roughening device comprising a depth direction moving device for moving the hammer in the depth direction, the horizontal moving device, the hammer is A fixed moving body, a guide member for guiding the moving body in a horizontal direction, and a drive mechanism for moving the moving body along the guide member are provided, and the moving body is provided with respect to the guide member. Guide plates arranged in parallel are integrally fixed, and a slide member is slidably engaged with the guide plate, and an arm member extending toward the reinforced concrete structure is fixed to the slide member. , A tire member rotatably abutting on the reinforced concrete structure is rotatably attached to the arm member, and is disposed between the guide plate and the slide member. Is provided with a biasing means that biases these in a direction in which they approach each other so that the tire member and the reinforced concrete structure are always in contact with each other regardless of the moving position of the moving body. It is characterized by being

According to a second aspect of the present invention, there is provided a roughening device for a reinforced concrete structure, a hammer for hitting and roughening the surface of a columnar reinforced concrete structure, and a vertical movement for moving the hammer in a vertical direction. A device, a horizontal moving device that moves the hammer in the horizontal direction, and a depth direction moving device that moves the hammer in the depth direction, in a roughening device for a reinforced concrete structure,
The horizontal moving device includes a moving body to which the hammer is fixed, a guide member that guides the moving body in a horizontal direction, and a drive mechanism that moves the moving body along the guide member. The member is curved and formed with a substantially constant curvature in a horizontal plane so that the axis of the hammer fixed to the moving body guided by the guide member is guided in the direction toward the axis of the reinforced concrete structure. It is characterized by having a rail.

[0008]

According to the roughening device for a reinforced concrete structure according to the first aspect of the present invention, a hammer for hitting and roughening the surface of a reinforced concrete structure is provided with a vertical moving device, a horizontal moving device and a depth direction. It is moved by a moving device to roughen the surface and gradually exfoliate the concrete on the surface of the reinforced concrete structure.

At this time, the moving body to which the hammer is fixed moves along the guide member by driving the driving mechanism of the horizontal moving device, but the guide plate is integrally fixed to the moving body, and A slide member is slidably engaged with the plate, and an arm member extending toward the reinforced concrete structure is fixed to the slide member. The arm member is rotatably abutted on the concrete structure. A tire member in contact with the sliding member is rotatably attached, and a biasing means for biasing the guide plate and the slide member in a direction of approaching each other is provided. Instead, the tire member and the reinforced concrete structure are always in contact with each other. As a result, it is possible to perform roughening work or picking work along the concrete structure.

According to the roughening device for a reinforced concrete structure according to the second aspect of the present invention, a hammer for hitting the surface of a cylindrical reinforced concrete structure to roughen the surface of the reinforced concrete structure is provided.
The vertical moving device, the horizontal moving device, and the depth moving device are used to move and roughen the surface, and the concrete on the surface of the reinforced concrete structure is gradually exuded.

At this time, by driving the drive mechanism of the horizontal moving device, the moving body to which the hammer is fixed moves along the guide member, but the guide member is curved with a substantially constant curvature in the horizontal plane. Since the rail formed by the above is provided, the axis of the hammer is guided in the direction toward the axis of the reinforced concrete structure. Therefore, the hammer can be moved along the surface of the columnar reinforced concrete structure, and thereby, the roughening can be performed with high efficiency and high quality.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A roughening device for a reinforced concrete structure according to an embodiment of the present invention will be described below with reference to the drawings. The roughening device of this embodiment is used for roughening work, but it can also be used for picking out work by repeatedly performing roughening work on the same surface.

(First Embodiment) The coarsening device of this embodiment is
A hammer 2 that hits the surface of the reinforced concrete structure 1 to roughen it, a vertical movement device 3 that moves the hammer 2 in the vertical direction, a horizontal movement device 4 that moves the hammer 2 in the horizontal direction, and a hammer 2 And a depth direction moving device 5 for moving in the depth direction.

Below the hammer 2, there is provided a hopper 6 for receiving concrete that is crushed and dropped by the hammer 2, and a duct 7 for guiding the crushed concrete downward is connected to the hopper 6. .

As shown in FIG. 2, the horizontal moving device 4 includes a moving body 8 to which the hammer 2 is fixed, a guide member 9 for guiding the moving body 8 in the horizontal direction, and the moving body 8. A drive mechanism (not shown) for moving along the guide member 9 is provided.

As shown in FIGS. 3 to 5, a guide plate 14 arranged parallel to the guide member 9 is integrally fixed to the movable body 8. A slide member 15 is slidably engaged with the guide plate 14, and an arm member 10 extending toward the reinforced concrete structure 1 is fixed to the slide member 15. A tire member 11 is rotatably attached to the concrete structure 1 so as to rotatably contact the concrete structure 1. Further, between the guide plate 14 and the slide member 15, an air cylinder (urging means) 12 for urging them in a direction in which they are separated from each other is provided. A ridge 15a is formed on a side surface of the slide member 15, and a roller 16 rotatably attached to the guide plate 14 is engaged with the ridge 15a.

Cylinder portion 1 of the air cylinder 12
2a is fixed to the slide member 15, and the piston rod portion 12b of the air cylinder 12 is connected to a guide plate 14 fixed to the moving body 8. Then, by constantly supplying a constant pressure of air to the air cylinder 12 to urge the piston rod 12b to project, the tire member 11 and the reinforced concrete structure are irrespective of the moving position of the moving body 8 with respect to the guide member 9. The object 1 is always in contact with the object 1.

The operation of the coarsening device of the first embodiment will be described with reference to FIGS. In addition, the coarsening device of the present embodiment, for example, the surface portion 1a of the inclined column whose cross-sectional area decreases toward the upper portion as shown in FIG. Work out to a specified depth.

First, the vertical movement device 3 is driven so that the hammer 2 has a predetermined height. Next, as shown in FIG. 7, the drive mechanism of the horizontal movement device 4 is driven to reciprocate the moving body 8 in the horizontal direction along the guide member 9. At this time, the hammer 2 is driven to hit the surface of the reinforced concrete structure 1 to roughen the eyes. Since the hammer 2 is urged to move in the depth direction by the depth direction moving device 5, the hammer 2 is always in contact with the surface of the reinforced concrete structure 1 during the roughening work to set a predetermined value. It is designed to roughen the skin to the depth.

Next, when the hammer 2 is moved in one direction by the horizontal moving device 4, as shown in FIG. 9, the vertical moving device 3 is driven to move the hammer 2 slightly downward, and further, The hammer 2 is moved in the opposite direction. In this way, roughening is performed with a constant width by a constant height, and then the same position is further roughened, so that gradual exfoliation is performed in the depth direction.

At this time, the guide plate 1 fixed to the moving body 8
Since the air cylinder 12 is fixed between the slide member 4 and the slide member 15 so as to urge them in a direction in which they approach each other, by constantly supplying air of a constant pressure to the air cylinder 12, By urging the piston rod 12b to project, the tire member 11 and the reinforced concrete structure 1 are always in contact with each other regardless of the moving position of the moving body 8, as shown in FIG. Thereby, the slide member 15 is positioned with respect to the reinforced concrete structure 1, and the surface of the reinforced concrete structure 1 is roughened. Therefore, as shown in FIG. 9, the reinforced concrete structure 1 can be roughened with a constant width and a constant depth along the inclination. That is, it is possible to automatically and efficiently perform the roughening of a certain width by following the inclination of the reinforced concrete structure 1.

(Second Embodiment) Next, based on FIG.
Another embodiment of the reinforced concrete structure roughening device of the present invention will be described. This is to roughen the columnar reinforced concrete structure 24. Note that FIG. 10 is a plan view showing the vicinity of the hammer 20.

The hammer 20 is fixed to a moving body 23, and the moving body 23 is guided by a linearly extending guide member 22.
A drive mechanism (hydraulic cylinder) 21 for horizontally moving is connected. Further, a rail 25 is attached to the moving body 23, which is curved and has a substantially constant curvature in a horizontal plane.

In this structure, by moving the drive mechanism 21 forward and backward, the movable body 23 to which the hammer 20 is fixed moves along the guide member 22.

Here, if the hammer 20 is simply moved along the guide member 22, as shown in FIG.
As shown in FIG. 12B, the hammer 20 only reciprocates in a straight line in the horizontal plane, and when it is eccentric from the axis of the reinforced concrete structure 24, as shown in FIG.
There is a risk that the stroke of the chisel 20a is insufficient and the surface roughness of the roughening of the eyes becomes uneven. However, according to the roughening device for a reinforced concrete structure of the present embodiment, since the rail 25 formed by being curved with a substantially constant curvature in the horizontal plane is attached, the hammer is accompanied by the movement of the moving body 23. The axis of 20 is guided in the direction toward the axis of the reinforced concrete structure 24. Therefore, the hammer 20 is used as a columnar reinforced concrete structure 2
4 can be moved along the surface, which allows
The surface of the reinforced concrete structure 24 can be uniformly roughened. That is, according to the roughening device for a reinforced concrete structure of the present embodiment, it is possible to perform roughening with high efficiency and high quality (for example, constant surface roughness).

[0026]

As described above, according to the first aspect of the present invention.
According to the reinforced concrete structure roughening device described,
The horizontal moving device includes a moving body to which the hammer is fixed, a guide member for guiding the moving body in a horizontal direction, and a drive mechanism for moving the moving body along the guide member. A guide plate arranged parallel to the guide member is integrally fixed to the guide member, and a slide member is slidably engaged with the guide plate, and the slide member has the reinforced concrete structure. An arm member that extends toward the base member is fixed, and a tire member that rotatably abuts on the concrete structure is rotatably attached to the arm member. The tire member is provided between the guide plate and the slide member. Urging means for urging the tire member and the reinforced concrete structure so as to always be in contact with each other regardless of the moving position of the moving body by providing a biasing means in a direction approaching Because there can be performed reliably and efficiently roughening operation or 斫Ri out work along the reinforced concrete structures.

According to a second aspect of the present invention, there is provided a coarsening device for a reinforced concrete structure, wherein the horizontal moving device has a moving body to which the hammer is fixed, a guide member for horizontally guiding the moving body, and And a drive mechanism for moving the moving body along the guide member, wherein the guide member has a shaft of a hammer fixed to the moving body guided by the guide member in a direction toward an axis of the reinforced concrete structure. As the rail is formed so as to be guided so as to be curved with a substantially constant curvature in the horizontal plane, the moving body to which the hammer is fixed is driven by driving the driving mechanism of the horizontal direction moving device. While moving along the rail, the rail guides the axis of the hammer in the direction of the axis of the reinforced concrete structure, so that the hammer is cylindrical. It can be moved along the surface of the reinforced concrete structures, whereby a high efficiency can be roughening eye with high quality.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a roughening device for a reinforced concrete structure according to a first embodiment of the present invention.

FIG. 2 is a diagram viewed from the direction a in FIG.

FIG. 3 is a detailed view seen from the direction B in FIG.

FIG. 4 is a diagram viewed from the direction C in FIG.

5 is an enlarged view seen from the direction D in FIG.

FIG. 6 is a diagram showing a state when the moving body is moved in FIG.

FIG. 7 is a view corresponding to FIG. 3 showing the operation of the grain coarsening device for the reinforced concrete structure of FIG. 1.

8 is a side view showing a reinforced concrete structure which is roughened by using the roughening device for a reinforced concrete structure of FIG. 1. FIG.

FIG. 9 is a view showing a method for roughening the roughening device for the reinforced concrete structure of FIG. 1.

FIG. 10 is a plan view showing a coarsening device for a reinforced concrete structure according to a second embodiment of the present invention.

FIG. 11 is a plan view for explaining a problem to be solved by the second embodiment.

FIG. 12 is a partially enlarged view of FIG.

[Explanation of symbols]

 1 Reinforced concrete structure 2 Hammer 3 Vertical moving device 4 Horizontal moving device 5 Depth direction moving device 8 Moving body 9 Guide member 10 Arm member 11 Tire 12 Air cylinder 14 Guide plate 15 Sliding member 20 Hammer 21 Hydraulic cylinder (drive mechanism) ) 22 guide member 23 moving body 24 reinforced concrete structure 25 rail

Claims (2)

[Claims] 1. A hammer that hits the surface of a reinforced concrete structure to roughen it, a vertical movement device that moves the hammer in the vertical direction, a horizontal movement device that horizontally moves the hammer, and the hammer. In a coarsening device for a reinforced concrete structure including a depth direction moving device that moves in the depth direction, the horizontal direction moving device guides the moving body to which the hammer is fixed and the moving body in the horizontal direction. A guide member and a drive mechanism for moving the moving body along the guide member, wherein a guide plate arranged parallel to the guide member is integrally fixed to the moving body, A sliding member is slidably engaged with the plate,
An arm member extending toward the reinforced concrete structure is fixed to the slide member, and a tire member rotatably abutting on the reinforced concrete structure is rotatably attached to the arm member, and the guide plate and the slide member are slidable. A biasing member and a member that biases them in a direction in which they approach each other so that the tire member and the reinforced concrete structure are always in contact with each other regardless of the moving position of the moving body. Means for roughening a reinforced concrete structure, characterized in that means are provided. 2. A hammer for hitting and roughening the surface of a columnar reinforced concrete structure, a vertical moving device for moving the hammer in the vertical direction, and a horizontal moving device for moving the hammer in the horizontal direction. In a reinforced concrete structure roughening device including a depth direction moving device that moves the hammer in the depth direction, the horizontal direction moving device is a moving body to which the hammer is fixed, and the moving body is horizontal. A guide member for guiding in a direction, and a drive mechanism for moving the movable body along the guide member, wherein the guide member has an axis of a hammer fixed to the movable body guided by the guide member. To be guided in the direction of the axis of the reinforced concrete structure,
A roughening device for reinforced concrete structures, characterized in that rails formed by bending with a substantially constant curvature in a horizontal plane are provided.