JP2873904B2 - Concrete finishing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete finishing apparatus for leveling and finishing concrete containing fiber.

[0002]

2. Description of the Related Art As a conventional concrete finishing apparatus, as shown in Japanese Patent Application Laid-Open No. 1-174707, there is provided a frame which runs on a laid rail by wheels. On the other hand, there is known a concrete finisher in which a diaphragm is attached and a finishing screed is attached to a trailing edge. This concrete finisher spreads the concrete with a spreader at the front edge, flattens it to a specified thickness, compacts it with a vibration plate below the center, and finishes the concrete surface with a finishing screed at the rear edge. It is.

[0003]

[Problems to be solved by the present invention] The above-mentioned conventional concrete finisher has the following problems. <B> The spreader, vibrating plate and finishing screed attached to the frame cannot be ground, compacted, or finished with concrete near the rails. Therefore, after the surface is treated with a concrete finisher, the concrete near the rails must be manually ground and leveled, compacted, and the surface finished again.

[0004] When the concrete is fiber concrete in which fibers are mixed, the fibers located on the concrete surface are caught by a spreader or the like, so that the surface cannot be leveled cleanly.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a concrete finishing apparatus capable of reliably performing surface finishing up to the concrete end and capable of coping with fiber concrete. Is to do.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a method for leveling and finishing concrete poured between two form rails which run on two form rails whose upper end surfaces are set at a planned height. A body capable of traveling on the formwork rail, a dumping plate with a seismic generator hanging down on the advancing side of the main body, and a free-running idler at the rear side of the dumping plate. A roller having a protruding body on its peripheral surface, and a leveling plate that droops to the rear side of the roller and reciprocates left and right with respect to the traveling direction of the main body, and includes the discharging plate, the roller, and the leveling plate. This is a concrete finishing device that extends in the left-right direction while being laid horizontally on a formwork rail.

In the present invention, when a plurality of the rollers are installed before and after in the traveling direction and the concrete surface is finished, the interval between the rollers or the interval between the protrusions of the rollers or the interval between the protrusions of the rollers may be changed. The concrete finishing apparatus according to the above, wherein the protrusion of the subsequent roller is guided so as to be guided to the concrete surface through which the gap between the protrusions passes.

[0008]

Embodiment 1 Embodiment 1 of the present invention will be described below with reference to the drawings.
Will be described.

<A> Overall Configuration FIG. 1 shows a concrete finishing apparatus 10. The concrete finishing device 10 includes a main body 20, a discharge plate 30, and a roller 4.
0 and leveling plates 50 and 60. Hereinafter, each part will be described in detail.

<B> Main Body (FIG. 1) The main body 20 is a bogie formed by extending wheels 22 below a gantry 21. As shown in FIG. 1, the main body 20 is configured such that a space is provided below the gantry 21 so that each member can be disposed. The driving force is applied to the wheels 22 by a known self-propelled device, and the wheels 22 can move the main body 20 back and forth. Further, it is preferable to use the wheel 22 having a single brim shape, that is, a wheel provided with a brim member on one of the inside and the outside. The gantry 21 has a generator 23 and a hydraulic unit 2
4, and a later-described ejection plate 20, a roller 4
0, power is applied to each of the leveling plates 50 and 60.

<C> Discharge Plate (FIGS. 1 and 2) A discharge plate 30 is suspended from a lower front portion of the gantry 21 via a suspending member 25 having a telescopic function. This hanging member 2
5 includes a cylinder 251 fixed to the gantry 21, an elevating bar 252, and a coil spring 253, for example, as shown in FIG. By expanding and contracting the cylinder 251, the lifting bar 252 and the coil spring 253 can be raised and lowered, and the earth discharging plate 30 can be moved up and down. Earth removal plate 3
Numeral 0 denotes a portion where the lower concrete 80 is leveled substantially horizontally, and vibration is applied to the concrete 80 to compact the concrete 80. The vibrator 31 is disposed inside. As shown in FIG. 1, the front surface of the earth discharging plate 30 is formed in a shape of a letter with its sharp end pointing in the traveling direction, and both sides extend outside the form rail 70. A rubber material 32 is attached to a portion of the bottom surface of the discharge plate 30 that contacts the form rail 70.

<D> Roller (FIGS. 1 and 3) A roller 40 is hung behind the earth discharging plate 30 via the hung member 25. The roller 40 is used for the dumping plate 3
Similarly to the case 0, it is freely movable up and down, and is attached via a side plate 43 so as to freely rotate. The roller 40 is formed of a cylindrical body, and both sides of the roller 40 extend outside the form rail 70. The roller 40 rotates and moves on the surface of the concrete 80, and the fibers 81 on the surface of the concrete 80.
(Reinforcing material). Roller 4
0 is composed of two leading rollers 41 and trailing rollers 42, as shown in FIG.
Are arranged in a direction orthogonal to the traveling direction.

A plurality of protrusions 44 are provided on the outer peripheral surfaces of the leading roller 41 and the trailing roller 42. It is preferable that the shape of the protrusion 44 be formed in a tapered trapezoidal shape. The arrangement of the projections 44 may be staggered as shown in FIG. 1 or may be arranged linearly in the axial direction of the rollers. Further, in order to make the rotation of the leading roller 41 and the trailing roller 42 smooth, the protrusions 44 are not provided at the end of the outer peripheral surface that contacts the form rail 70. The spacing between the leading roller 41 and the trailing roller 42 and the spacing between the protrusions 31 in the rotation direction of the rollers 41 and 42 are, as shown in FIG. , 45 so that the protrusion 44 of the trailing roller 42 is guided.

The number of the rollers 40 may be one, or three or more as required. If the interval between the protrusions 44 of the roller 40 is set too small, the concrete will be pushed into the coarse aggregate on the concrete surface, and the concrete surface strength will be reduced. Therefore, if the number of the rollers 40 to be installed is increased and the interval between the protrusions 44 of the rollers 40 is set to be wide, it is possible to avoid such inconvenience.

<E> Leveling Plate (FIGS. 1 and 4) Leveling plates 50 and 60 are suspended from the roller 40 via a hanging member 25. Leveling plates 50 and 60
The roller 40 is mounted on the gantry 21 so as to be able to move up and down, similarly to the earth removal plate 30 and the roller 40, and both sides are arranged to extend outside the form rail 70. Leveling plate 50
Is a member for leveling the concrete 80 in the lateral direction. As shown in FIG. 4, the end is suspended at an angle back and forth with respect to a direction orthogonal to the traveling direction via a slide mechanism 51. When the cylinder inside the slide mechanism 51 expands and contracts, the cylinder reciprocates left and right with respect to the traveling direction. A wear-resistant steel plate 52 is attached to a portion of the bottom surface of the leveling plate 50 that contacts the form rail 70. The leveling plate 60 is a member for leveling the concrete 80 in the lateral direction, similarly to the leveling plate 50. As shown in FIG. 1, the leveling plate 60 is suspended at an angle in a direction opposite to the leveling plate 50 via a slide mechanism 61, and the cylinder inside the slide mechanism 61 expands and contracts. Reciprocates left and right with respect to the traveling direction. Formwork rail 7 on the bottom surface of the leveling plate 60
The abrasion-resistant steel plate 62 is attached to the portion where the abutment 0 contacts.

<F> Form rail (FIG. 1) The form rail 70 functions as a form and a rail. The form rail 70 performs sufficient surveying and is installed in accordance with the planned height of the concrete structure to be constructed. That is, the position of the upper end face of the form rail 70 is matched with the planned height of the structure,
Form rails 70, 70 are installed in parallel at a predetermined interval.

[0017]

Next, a method of using the concrete finishing device will be described. <A> Concrete casting (FIG. 1) First, formwork rails 70, 70 are installed at positions where construction is to be performed. At this time, sufficient surveying is performed, and the top surface of the formwork rail 70 is made to coincide with the planned height of the structure. After the pair of form rails 70, 70 are installed, concrete 80 mixed with fiber is cast between the form rails 70, 70.

<B> Compaction process (FIG. 1) Concrete finishing device 10 is placed on formwork rails 70, 70.
And start driving to run. First, the earth removal plate 30 installed in the front leveles the concrete 80 substantially horizontally and compacts it by the vibration of the vibrator 31. At this time, since the earth discharging plate 30 is provided so as to extend from the form rail 70, the concrete 80 near the form rail 70 can be leveled and compacted. Since the rubber material 32 is attached to the bottom end of the earth removal plate 30, the vibration of the earth removal plate 30 is not transmitted to the form rail 70.

<C> Fiber pushing process (FIGS. 1, 3
5 to 8) The concrete 80 leveled and compacted by the dumping plate 30 is:
The fiber 81 protrudes from the surface. In this state, if the leveling is performed by the leveling plates 50 and 60, the fibers are caught on the leveling plate, so that the leveling operation is extremely difficult. Therefore, in the concrete finishing apparatus 10, the rollers 40 are disposed in front of the leveling plates 50 and 60.

The leading roller 41 and the trailing roller 42 pass while rotating on the concrete 80 leveled and compacted by the earth discharging plate 30. At this time, the protrusions 44 of the leading roller 41 and the trailing roller 42 are connected to the fiber 81 as shown in FIG.
Into the concrete 80. Further, since the leading roller 41 and the trailing roller 42 are installed before and after in the traveling direction, the clearance between the projections 44 that cannot be processed by the leading roller 41 and the projections of the trailing roller 42 When the body 44 has just passed, the fiber 81 in the gap can also be pushed into the inside. Therefore, the concrete 80 without spots
Can be pushed inside.

Further, since the protrusions 44 are formed in a trapezoidal shape, the protrusions 44 are easily removed when the protrusions 44 are separated from the surface of the concrete 80. As shown in FIGS.
No one jumps up. For example, if the protrusion 44 is formed in a rectangular shape, the fiber 81 will jump up when the protrusion 44 comes off as shown in FIGS. 7 and 8, and the fiber 81 cannot be pushed securely. Also, the elastic member 2 installed above the rollers 41 and 42
If the push-in work is performed in accordance with the change of the slump of the concrete by changing the position of 5, the certainty of the work is improved.

<D> Finishing Step The concrete finishing apparatus 10 is advanced, and the leveling plate 50 is moved onto the concrete 80 into which the fibers 81 on the surface have been pushed inside. By repeating the expansion and contraction of the slide mechanism 51, the leveling plate 50 is reciprocated right and left in the traveling direction, and the concrete 80 is leveled at the bottom surface. At this time, since the leveling plate 50 is provided so as to extend from the form rail 70, the concrete 80 near the form rail 70 can be leveled. Further, since the steel plate 52 is attached to the bottom end of the leveling plate 50, the form rail 70
Abrasion of the portion in contact with the surface can be prevented.

Further, the concrete finishing apparatus 10 is advanced, and the leveling plate 60 is moved onto the concrete 80 leveled by the leveling plate 50. Then, the leveling plate 60 is reciprocated right and left in the traveling direction by repeating the expansion and contraction of the slide mechanism 61, and the concrete 80 is leveled at the bottom surface. At this time, since the leveling plate 60 is provided to extend from the form rail 70, the concrete 80 near the form rail 70 can be leveled. Further, since the steel plate 62 is attached to the bottom end of the leveling plate 60, the form rail 70
Abrasion of the portion in contact with the surface can be prevented.

After finishing the leveling work to the predetermined construction position,
The cylinder 251 of the hanging member 25 is contracted, and the earth discharging plate 30, the roller 40, and the leveling plates 50 and 60 are respectively raised and separated from the form rail 70. Then, the concrete finishing device 10 is moved to the next construction position. Incidentally, if necessary, the compacting, pushing and leveling operations may be performed again.

[0025]

As described above, the present invention has the following effects. <B> Since the earth removal plate, rollers and leveling plate attached to the lower part of the main body are arranged to extend outside the form rail, the concrete near the form rail is compacted, fiber is pushed in, and the surface is leveled. Can do it. Therefore, after the concrete is processed by the concrete finishing device, it is not necessary to manually compact the concrete near the rail and perform surface finishing or the like again.

<B> By providing a roller with a projection on the peripheral surface at the lower part of the main body, the surface finish of the fiber concrete can be finely performed.

<C> A plurality of rollers are installed, and the interval between the rollers or the interval between the projections of the rollers is set on the concrete surface where the gap between the projections of the preceding rollers passes. The setting was made so that the protrusion of the roller to be guided was guided. For this reason, since the protrusion of the following roller just passes through the gap between the protrusions which cannot be processed by the preceding roller and the protrusions, the fiber in the gap can also be pushed into the inside. Therefore, there is no uneven concrete
The fiber near the surface of the fiber can be pushed inside.

[Brief description of the drawings]

FIG. 1 is a perspective view of a concrete finishing device.

FIG. 2 is an explanatory view of a hanging member.

FIG. 3 is an explanatory view of a roller.

FIG. 4 is an explanatory view of a leveling plate.

FIG. 5 is an explanatory diagram of a fiber pushing process.

FIG. 6 is an explanatory diagram of a fiber pushing process.

FIG. 7 is an explanatory diagram of a fiber pushing process.

FIG. 8 is an explanatory view of a fiber pushing process.

Claims (2)

(57) [Claims] 1. A concrete finishing apparatus which runs on two form rails whose upper end surfaces are set at a planned height to level and finish concrete poured between the form rails, A main body that can run on the formwork rail, a main body that hangs down on the traveling side of the main body, a grounding plate with an exciter; And a leveling plate that hangs down to the rear side of the roller and reciprocates right and left with respect to the traveling direction of the main body. The soil discharging plate, the roller, and the leveling plate are horizontally mounted on a form rail. A concrete finishing device that extends in the left-right direction in a state where it can be used. 2. The concrete finishing device according to claim 1, wherein a plurality of the rollers are installed in front and rear of the traveling direction, and when finishing the concrete surface, the interval between the rollers or the projections of the rollers. A concrete finishing device, wherein an installation interval is set so that a projection of a subsequent roller is guided on a concrete surface through which a gap between the projection of a preceding roller and a gap between the projections passes.