JPH07102522A - Concrete finishing device - Google Patents

Abstract

PURPOSE:To obtain a concrete finishing device wherein by extending an earth removal board, roller, and leveling board to the outside of a form rail, surface finishing can be surely applied to the end of a concrete, even to a fiber concrete. CONSTITUTION:Concrete 80 into which fibers 81 are mixed is placed into between form rails 70. The concrete 80 is leveled by an earth removel board 30 nearly horizontally and the concrete is compacted by the vibration of a vibrator. The board 30 is disposed so as to project from the rails 70, so that the concrete near the form rails 70 also can be surely compacted. Fibers 81 protruding from the concrete 80 are pushed into the concrete by means of a traveling roller 41 and a protrusion 44 on the surface of a rearward traveling roller 42. The concrete 80 near the form rails 70 is surely leveled by means of a leveling board 50 extending from the rails 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete finishing device for leveling and finishing concrete mixed with fibers.

[0002]

2. Description of the Related Art As a conventional concrete finishing device, as shown in Japanese Patent Laid-Open No. 174707/1989, a frame is provided which runs on wheels on a laid rail, and a spreader is provided at the front edge of the frame, and a spreader is provided at the lower center. There is known a concrete finisher in which a vibrating plate is attached to one side and a finishing screed is attached to the trailing edge. This concrete finisher spreads concrete with a spreader on the front edge and grinds it to a specified thickness, compacts it with a vibrating plate below the center, and finishes the concrete surface with a finishing screed on the rear edge. Is.

[0003]

Problems to be Solved by the Invention The conventional concrete finisher described above has the following problems. <a> The spreader, diaphragm, and finishing screed attached to the frame cannot grind, compact, and finish the concrete near the rail, respectively. Therefore, after the surface is treated with the concrete finisher, the concrete near the rail must be manually ground and leveled, compacted, and surface-finished again.

<B> When the concrete is fiber concrete in which fibers are mixed, the fibers located on the concrete surface are caught by the spreader or the like, so that the surface cannot be smoothed.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a concrete finishing apparatus capable of surely finishing the surface up to the concrete end portion and capable of supporting fiber concrete. To do.

[0006]

[Means for Solving the Problems] That is, the present invention runs on two formwork rails whose upper end surfaces are set at a planned height, and evens out and finishes concrete placed between the formwork rails. In the concrete finishing device for performing the above, a main body that can run on the form rail, an earth-moving earth plate that hangs down on the advancing side of the main body, and an earthquake-moving plate, and idle behind the earth-earth discharging board. The earthing plate, the roller, and the leveling plate, which are configured by a roller having a protrusion on the hanging peripheral surface and a leveling plate which hangs backward of the roller and reciprocates left and right with respect to the traveling direction of the main body. It is a concrete finishing device that is laterally extended and arranged in a state of being horizontally mounted on a formwork rail.

Further, according to the present invention, when a plurality of the rollers are installed before and after the advancing direction and the concrete surface is finished, the installation interval of the rollers or the projections of the rollers and the installation interval of the projections of the rollers are set to those of the preceding roller. The concrete finishing device as set forth above, characterized in that the projections of the trailing rollers are set to be guided to the concrete surface through which the gaps between the projections pass.

[0008]

[Embodiment 1] Embodiment 1 of the present invention with reference to the drawings.
Will be described.

<B> Overall Configuration FIG. 1 shows a concrete finishing device 10. The concrete finishing device 10 includes a main body 20, a soil discharging plate 30, and a roller 4.
0 and leveling plates 50 and 60. Each part will be described in detail below.

<B> Main Body (FIG. 1) The main body 20 is a trolley formed by extending wheels 22 below a pedestal 21. As shown in FIG. 1, the main body 20 is configured such that each member can be arranged by providing a space below the pedestal 21. Driving force is applied to the wheels 22 by a known self-propelled device, and the main body 20 can be moved back and forth. Further, it is preferable to use the wheel 22 having a one-sided collar, that is, one having a collar member attached to one of the inner side and the outer side. The mount 21 includes a generator 23 and a hydraulic unit 2
4 is placed, and an earth removing plate 20 and a roller 4 which will be described later are provided.
0, power is applied to each of the leveling plates 50 and 60.

<C> Earth Discharge Plate (FIGS. 1 and 2) An earth discharge plate 30 is hung on the lower front portion of the pedestal 21 via a hanging member 25 having a stretchable function. This hanging member 2
As shown in FIG. 2, for example, 5 is composed of a cylinder 251, which is fixed to the pedestal 21, a lifting bar 252, and a coil spring 253. By expanding and contracting the cylinder 251, the elevating bar 252 and the coil spring 253 can be moved up and down, and the earth discharging plate 30 can be moved up and down. Earth plate 3
Reference numeral 0 denotes a portion where the lower concrete 80 is leveled almost horizontally, and the concrete 80 is vibrated to be compacted, and the vibrator 31 is disposed inside. As shown in FIG. 1, the earth-discharging plate 30 has a front surface formed in a V shape with its sharp end facing the traveling direction, and both side portions thereof extend to the outside of the form rail 70. A rubber material 32 is attached to a portion of the bottom surface of the soil discharging plate 30 that comes into contact with the form rail 70.

<D> Roller (FIGS. 1 and 3) A roller 40 hangs behind the earth discharging plate 30 via the hanging member 25. The roller 40 is used as the soil discharging plate 3
Like 0, it is movable up and down and is attached via the side plate 43 so as to rotate freely. The roller 40 is formed of a columnar body, and both sides of the roller 40 extend to the outside of the form rail 70. The roller 40 rotates and moves on the surface of the concrete 80, and the fiber 81 on the surface of the concrete 80 moves.
It is a member for pushing the (reinforcing material) inside. Laura 4
0 is composed of two leading rollers 41 and a trailing roller 42, and as shown in FIG. 1, the leading roller 41 and the trailing roller 42.
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. The shape of the protrusion 44 is preferably formed in a tapered trapezoidal shape. The projections 44 may be arranged in a zigzag pattern as shown in FIG. 1, or may be arranged in a straight line in the axial directions of the rollers. Further, in order to make the rotation of the leading roller 41 and the trailing roller 42 smooth, the installation of the protrusions 44 at the outer peripheral surface end portions that contact the form rail 70 is avoided. As shown in FIG. 2, the installation distance between the leading roller 41 and the trailing roller 42 and the spacing between the rollers 41 and the protrusions 31 in the rotation direction of the roller 42 are as shown in FIG. , 45, the protrusion 44 of the trailing roller 42 is guided appropriately.

It should be noted that the number of the rollers 40 may be one, or three or more may be set as required. If the interval between the protrusions 44 of the roller 40 is set too narrow, the coarse aggregate on the concrete surface will be pushed in and the concrete surface strength will decrease. Therefore, such an inconvenience can be avoided by increasing the number of the installed rollers 40 and setting the arrangement interval of the protrusions 44 of the rollers 40 to be wide.

<E> Leveling Plates (FIGS. 1 and 4) Leveling plates 50 and 60 are hung from behind the roller 40 via a hanging member 25. Leveling plates 50 and 60
Like the soil discharging plate 30 and the roller 40, the roller 40 is attached to the pedestal 21 so as to be vertically movable, and both sides thereof are arranged so as to extend to the outside of the formwork rail 70. Leveling board 50
Is a member for leveling the concrete 80 in the horizontal direction, and as shown in FIG. 4, the end portion is hung from the slide mechanism 51 at an angle with its end part moved forward and backward with respect to the direction orthogonal to the traveling direction. The cylinder inside the slide mechanism 51 expands and contracts to reciprocate 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 abuts the form rail 70. The leveling plate 60, like the leveling plate 50, is a member for leveling the concrete 80 in the horizontal direction. As shown in FIG. 1, the leveling plate 60 is suspended via a slide mechanism 61 at an angle in the opposite direction to the leveling plate 50, and the cylinder inside the slide mechanism 61 expands and contracts. Reciprocates left and right with respect to the traveling direction. In addition, the form rail 7 on the bottom of the leveling plate 60
A wear-resistant steel plate 62 is attached to the portion where 0 abuts.

<F> Formwork Rail (FIG. 1) The formwork rail 70 functions as a formwork and rail. The formwork rail 70 is installed in accordance with the planned height of the concrete structure to be constructed by performing sufficient survey. That is, the position of the upper end surface of the formwork 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, the method of using the concrete finishing device will be described. <B> Concrete placing (Fig. 1) First, the form rails 70, 70 are installed at the planned construction positions. At this time, sufficient surveying is performed so that the top surface of the formwork rail 70 matches the planned height of the structure. After installing the pair of form rails 70, 70, concrete 80 containing fibers is placed between the form rails 70, 70.

<B> Compaction step (FIG. 1) The concrete finishing device 10 is mounted on the form rails 70, 70.
Is placed to start driving. First, the soil discharge 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 soil discharging plate 30 is arranged so as to extend from the formwork rail 70, the concrete 80 near the formwork rail 70 can be leveled and compacted. Since the rubber material 32 is attached to the bottom end of the soil discharging plate 30, the vibration of the soil discharging plate 30 is not transmitted to the form rail 70.

<C> Fiber pushing step (FIG. 1, FIG. 3,
5 to 8) The concrete 80 leveled and compacted with the soil discharge plate 30 is
A fiber 81 projects from the surface. In this state, when the finish leveling by the leveling plates 50 and 60 is performed, the fibers are caught on the leveling plate, so that the leveling work is extremely difficult. Therefore, in the concrete finishing device 10, the roller 40 is arranged 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 soil discharging plate 30. At this time, as shown in FIG. 3, the protrusions 44 of the leading roller 41 and the trailing roller 42 are connected to the fiber 81.
Is pushed into the concrete 80. Further, since the leading roller 41 and the trailing roller 42 are installed back and forth in the traveling direction, the protrusions of the trailing roller 42 cannot be processed by the leading roller 41. When the body 44 has just passed through, the fiber 81 in the gap can also be pushed inward. Therefore, the concrete 80
The fiber-81 near the surface of can be pushed inside.

Further, since the protrusions 44 are formed in a trapezoidal shape, they easily come off when the protrusions 44 separate from the surface of the concrete 80, and as shown in FIGS.
It doesn't bounce up 1. For example, when the protrusion 44 is formed in a rectangular shape, the fiber 81 is flipped up when the protrusion 44 is pulled out as shown in FIGS. 7 and 8, and the fiber 81 cannot be pushed in reliably. In addition, the elastic member 2 installed above the rollers 41 and 42
When the position of 5 is changed and the pushing operation is performed in response to the slump change of the concrete, the certainty of the operation is improved.

<D> Finishing Step The concrete finishing device 10 is moved forward, and the leveling plate 50 is moved onto the concrete 80 having the surface fibers 81 pushed therein. By repeating the expansion and contraction of the slide mechanism 51, the leveling plate 50 is reciprocated left and right with respect to the traveling direction, and the concrete 80 is leveled on the bottom surface thereof. At this time, since the leveling plate 50 is provided so as to extend from the formwork rail 70, the concrete 80 near the formwork rail 70 can also be leveled. Further, since the steel plate 52 is attached to the bottom end of the leveling plate 50, the form rail 70
It is possible to prevent the wear of the portion in contact with.

Further, the concrete finishing device 10 is moved forward, and the leveling plate 60 is moved onto the concrete 80 leveled by the leveling plate 50. Then, the sliding mechanism 61 is repeatedly expanded and contracted to reciprocate the leveling plate 60 left and right in the traveling direction, and the concrete 80 is leveled on the bottom surface thereof. At this time, since the leveling plate 60 is arranged so as to extend from the formwork rail 70, the concrete 80 near the formwork rail 70 can also be leveled. Further, since the steel plate 62 is attached to the bottom end portion of the leveling plate 60, the form rail 70
It is possible to prevent the wear of the portion in contact with.

After completing the leveling work to the predetermined construction position,
The cylinder 251 of the hanging member 25 is contracted to raise the earth discharging plate 30, the roller 40, and the leveling plates 50 and 60, respectively, and separate them from the form rail 70. Then, the concrete finishing device 10 is moved to the next construction position. If necessary, compaction, pushing, and leveling may be performed again.

[0025]

Since the present invention is as described above, the following effects can be obtained. <a> The soil discharge plate, roller, and leveling plate attached to the lower part of the main body are arranged so as to extend outside the formwork rail, so that concrete near the formwork rail is also compacted, the fiber is pressed, and the surface is leveled. You can do it. Therefore, it is not necessary to manually compact the concrete in the vicinity of the rail and perform surface finishing again after treating the concrete with the concrete finishing device.

<B> By providing a roller having a protrusion on the peripheral surface at the bottom of the main body, the surface finish of the fiber concrete can be neatly performed.

<C> A plurality of rollers are installed, and the installation surface of the rollers or the projections of the rollers and the installation interval of the projections of the rollers follow the concrete surface through which the gap between the projections of the preceding rollers passes. It was set so that the protrusion of the roller to be guided would be guided. For this reason, since the protrusions of the rollers that follow pass just through the gaps between the protrusions that cannot be processed by the preceding roller, the fibers in the gaps can also be pushed inside. Therefore, there is no spot on the concrete.
The fibers near the surface of the gutter can be pushed inward.

[Brief description of drawings]

1] Perspective view of concrete finishing equipment

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

FIG. 3 is an explanatory diagram of a roller

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

FIG. 5 is an explanatory view of a fiber pushing step.

FIG. 6 is an explanatory view of a fiber pushing step.

FIG. 7 is an explanatory view of a fiber pushing step.

FIG. 8 is an explanatory diagram of a fiber pushing step.

Claims (2)

[Claims] 1. A concrete finishing device which runs on two formwork rails whose upper end surfaces are set to a planned height, and which leveles and finishes concrete placed between the formwork rails, A main body that can run on the form rail, a hanging body on the moving side of the main body, an earth-discharging plate with a shaker, and a rear side of the earth-discharging plate so that the body can freely rotate, and a protrusion is formed on the peripheral surface. And a leveling plate that hangs behind the roller and reciprocates left and right with respect to the traveling direction of the main body. The soil discharging plate, the roller, and the leveling plate are horizontally mounted on the form rail. A concrete finishing device that extends in the left-right direction while being installed. 2. The concrete finishing device according to claim 1, wherein a plurality of the rollers are installed before and after the traveling direction, and when the concrete surface is finished, the installation interval between the rollers or the projections of the rollers and the projections of the rollers are The concrete finishing device is characterized in that the installation interval is set so that the projection of the trailing roller is guided to the concrete surface through which the projection of the preceding roller and the gap between the projections pass.