JPH0674641B2 - Leveling equipment for concrete floors - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a leveling device for a concrete floor surface.

(Prior Art) Conventionally, the construction of concrete floor surface is performed as follows.

First, rebar is assembled in the formwork that forms the floor surface, concrete is driven in from a flexible hose in the formwork, and concrete is filled and compacted by a vibrator or the like.

Next, the worker performs leveling work, performs rough leveling work while adjusting the excess and deficiency of concrete with a wooden iron, and finally performs ruler cutting work such as pressing the top end with a ruler rod.

(Problems to be Solved by the Invention) In such a conventional method, in particular, the leveling work and the following work must be performed by a worker using a tool, which requires a large number of workers and requires a long construction time. There was a problem such as. Further, in this case, there is a problem that the worker requires a skilled skill, and even a skilled worker has variations in finishing accuracy among the workers.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to reduce the number of workers and the construction time, without requiring skill, and without finishing the finish. It is to provide a leveling device for concrete floor surfaces that can maintain accuracy.

(Means for Solving the Problems) The present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments.

The present invention relates to a traveling frame 1 having first and second frames 11 and 12 each having a predetermined length and slidably attached to each other in the longitudinal direction thereof, and the first and second frames 11 and 12 described above. The first power source M2 for sliding the first and second frames 1
The leg parts 15 and 25, which are provided to move vertically in 1 and 12, respectively, support the traveling frame by abutting against fixed objects such as reinforcing bars under the concrete floor surface when moving down, and the leg parts 15 and 25 are moved up and down. Second power sources M1 and M3 to be moved, and a movable body 3 disposed in the traveling frame 1 and capable of reciprocating in the longitudinal direction of the traveling frame.
And a third power source M4 for reciprocating the moving body 3 and a trowel 7 which is connected to the moving body 3 side and moves on the concrete floor surface by the movement of the moving body 3 to level the concrete floor surface.
It consists of and.

(Operation) The first and second frames 11 and 12 are slid by the first power source M2 to expand and contract both frames 11 and 12 in the longitudinal direction, and the legs 15 and 25 of both frames 11 and 12 are moved to the second position. Alternately ground the power sources M1 and M3 to drive the traveling frame 1. Further, the moving body 3 is reciprocated by the third power source M4 while the traveling frame 1 is traveling or is stopped, and the iron 7 is moved.

As described above, the leveling work of the concrete floor surface is automatically performed, the number of workers is reduced, the working time is shortened, and the finishing accuracy is maintained with high accuracy without causing variations.

In this case, when the traveling frame 1 and the moving body 3 are provided on the left and right, respectively, to configure the device, the traveling on the concrete floor surface and the leveling work on the concrete floor surface can be stably performed.

Further, if two trowels 7 are provided or a vibrator 75 is provided on the trowel 7, the concrete floor surface can be leveled more efficiently.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of the leveling device for the concrete floor, FIG. 2 is a view taken in the direction of arrow II in FIG. 1, and FIG. 3 is a view taken in the direction of arrow III in FIG.

In the figure, reference numeral 1 denotes a traveling frame. The traveling frame 1 is composed of a first frame 11 and a second frame 12 arranged in the first frame 11 and slidable in the longitudinal direction of the first frame 11. Has a predetermined length.

A moving body 3 is arranged above the traveling frame 1. In the embodiment, a pair of traveling frames 1 are provided on the left and right, and the traveling frames 1 and 1 are respectively connected to the moving bodies 3 and 3 by connecting frames 5 and 5. Further, frames 6 and 6 orthogonal to the connecting frames 5 and 5 are attached to the connecting frames 5 and 5, and supporting portions 8 and 8 for supporting the trowel 7 are attached to the rear portions of the frames 6 and 6.

FIG. 4 is a plan view of the first frame 11, and FIG. 5 is V of FIG.
FIG. 6 is a view taken in the direction of arrow VI in FIG. 4, and as shown in these drawings, the first frame 11 is connected to the upper frame 11a and the lower frame connected to the upper frame 11a via the connecting member 13. Frame 1
It consists of 1b. The upper frame 11a is further left and right frame 11
It consists of a ₁ and 11a ₂ .

The left and right frames 11a ₁ and 11a ₂ are separated from each other by a predetermined distance, and the clearance forms an opening 11a ₃ over the entire length of the upper frame 11a.

In the vicinity of both ends of the lower frame 11b, vertically movable legs 15, 15 are provided. The leg portion 15 moves up and down by the power of the motor M1, and a circular ground plate 15a is fixedly installed at the lower end of the leg portion 15.

A motor M2 is fixedly installed approximately at the center of the lower frame 11b, the tip of a drive shaft 16 of the motor M2 is supported by a bracket 17, and a linear rotary 18 is arranged on the drive shaft 16. The linear rotary 18 moves on the drive shaft 16 by the rotation of the drive shaft 16.

Inside the side portions of the left and right frames 11a ₁ and 11a _2, an upper rail 11c and a lower rail 11d are fixedly provided over the entire length of the upper frame 11a.

FIG. 7 is a plan view of the second frame 12, and FIG. 8 is VI of FIG.
II arrow view, FIG. 9 shows the IX arrow view of FIG. 7, and as shown in these drawings, the second frame 12 is an upper frame 12a,
The lower frame 12b is connected to the upper frame 12a via connecting members 20,20.

As shown in FIG. 9, the upper part 12a ₁ of the upper frame 12a is the lower part 12a.
_The width is formed smaller than that of ₂ , and a plurality of ball joints 21 ... Are attached to the side surface of the lower portion 12a _{2 at} a predetermined interval. Further, a plurality of shafts 22 are provided on the side surface of the upper portion 12a _{1 so} as to be spaced apart from each other by a predetermined distance, and a guide roller 23 is rotatably attached to the tip of the shaft 22. The guide roller 23 is the first frame 11
It is loosely fitted between the upper rail 11c and the lower rail 11d, and the outer diameter of the guide roller 23 is set smaller than the distance between the upper and lower rails 11c and 11d.

Like the upper frame, a plurality of ball joints 24 are attached to the side surface of the lower frame 12b at predetermined intervals, and the ball joint 24 and the ball joint 21 are brought into contact with the inner surface of the side portion of the first frame 11 and a guide roller. twenty three
By contacting the upper rail 11c with the lower rail 11d, the first frame 11 and the second frame 12 can be easily slid.

Legs 25, 25 penetrating the lower frame 12b and movable up and down are provided near both ends of the lower frame 12b. This leg 25, 25
Moves up and down by the power of the motor M3, and the ground plate 25a is attached to the lower end of the leg 25.

In the state where the second frame 12 is assembled to the first frame 11, as shown in FIG.
The left leg 25 is projected downward from the opening of the first frame 11, and the left leg 25 is projected downward from the opening of the first frame 11.

On the upper surface of the lower frame 12b, a pair of brackets 2
8 and 28 are fixed, and a connecting member 29 is provided between the brackets 28 and 28.
And the connecting member 29 is fixed to the linear rotary 18.

By the way, the leg portion 15 of the first frame 11 and the second frame 12
When one of the legs 25 extends, the other leg 25 contracts, and the legs 25 are alternately operated so as to be grounded. In the state shown in FIGS. 2 and 3, the legs 15, 15 of the first frame 11 are contracted and the second frame 12
Legs 25 of 25 extend and sneak into the concrete floor,
The ground plate 25a is in contact with the reinforcing bars in the concrete floor surface. In this state, the second frame 12 is fixed, and the first frame 11 is slidable with respect to the second frame. Also, the first
The frame 11 is lowered downward by its own weight, and the guide rollers 23 ... Of the second frame 12 are the first frame as shown in FIG.
The upper end of the upper portion 12a ₁ of the second frame 12 abuts on the lower surface of the upper rail 11c of the upper frame 11 and projects slightly upward from the opening 11a ₃ of the first frame 11. On the contrary, the legs 15, 15 of the first frame 11 extend and come into contact with the reinforcing bars in the concrete floor surface, and the second frame
Contrary to the above, in the state where the legs 25, 25 of 12 are contracted, the first
The frame 11 is fixed, the second frame 12 is the first frame
Slidable with respect to 11. In this state, the roller 23
Is in contact with the surface of the lower rail 11d and the upper portion 12a of the second frame 12
_The upper end of ₁ is located below the upper end of the first frame 11.

10 is a plan view of the moving body 3, FIG. 11 is a view taken in the direction of arrow XI in FIG. 10, FIG. 12 is a view taken in the direction of arrow XII in FIG. 10, where the moving body 3 is the upper portion 3a, left and right side portions. It is formed in a U-shaped cross section at 3b and 3c, and is slidably fitted to the upper portion of the traveling frame 1 through the lower opening 3d.

Shafts 32, 32 are arranged near the left and right ends inside the moving body 3,
A drive roller 34 is attached to the shaft 32, and a motor M4 is arranged above the moving body 3.

The drive roller 34 and the motor M4 are composed of pulleys 37, 38 and a belt.
39, pulleys 41, 43, belt 45, pulleys 47, 49, belt 50
Is connected by a deceleration mechanism 52 made up of, and the power of the motor M4 is decelerated and transmitted to the drive roller 34 to rotate the drive roller 34.

The drive roller 34 comes into contact with the upper portion of the traveling frame 1, and as described above, the leg portions 15 and 15 of the first frame 11 are contracted and the leg portions 25 and 25 of the second frame 12 are grounded. In the state, the drive roller 34 contacts the upper portion 12a ₁ of the second frame 12 and rolls on the upper portion 12a ₁ . On the other hand, the leg 1 of the first frame
When the legs 5 and 15 of the second frame 12 are contracted, the drive roller 34 comes into contact with the upper end of the upper frame 11a of the first frame 11 and rolls on it.

The moving body 3 reciprocates in the longitudinal direction on the traveling frame 1 by the rolling of the first frame 11 or the second frame 12 of the driving roller 34. The left and right side portions 3 of this moving body 3
A plurality of ball joints 55 are provided on the inner surfaces of b and 3c, and the movement of the moving body 3 is facilitated by bringing the ball joints 55 into contact with the side surfaces of the first frame 11.

FIG. 13 is a plan view of the connecting frame 5, the frame 6, the supporting portion 8, and the iron 7, and FIG. 14 is a view taken in the direction of arrow XIV in FIG.
The support portion 8 includes a frame body 60 attached to the rear end of the frame 6, a substantially fan-shaped flange 61 provided on the top of the frame body 60, and a support frame 62 provided below the frame body 60. Both ends of the frame 62 support the trowels 7 and 7, respectively.

A height adjuster is provided between the frame body 60 and the support frame 62.
Provide 68. The height adjuster 68 is a cylinder provided in the frame 60.
70 and a piston 71 provided on the support frame 62 side are slidably fitted together, and the tip of a rod 73 that moves up and down by the power of the motor M5 is attached to the upper end of the support frame 62.
The height adjuster 68 receives, for example, a signal from a laser leveler installed at an appropriate place around the floor surface, and based on this signal, corrects the current height and operates the motor M5 to operate the rod 73. The iron 7 is moved up and down to match the desired height.

A vibrator 75 is attached to the center of each iron 7 as shown in FIGS. 2 and 3. The exciter 75 is for vibrating the iron 7 to more evenly level the concrete floor surface.

Next, the operation of the concrete leveling device described above will be described.

First, in the state shown in FIGS. 2 and 3, as described above, the leg portions 25, 25 of the second frame 12 extend and the ground plate 25a comes into contact with the reinforcing bars in the concrete floor surface, so that the first frame 11 Leg 1
5, 15 have been reduced. In this state, the second frame 12 is fixed, and the first frame 11 is slidable with respect thereto. When the motor M2 of the first frame 11 is operated and the drive shaft 16 is rotated in such a state, the linear rotary 18 is prevented from moving in the left-right direction in FIGS. Fig. 4 and Fig. 5A for linear rotary 18
Move in the direction (forward). As a result, the first frame 11 moves relative to the second frame 12 in the direction A (forward) in FIG.

After moving the first frame 11, this time the legs of the first frame 11
Extend 15 and 15 to abut the reinforcing bars in concrete,
The legs 25, 25 of the second frame 12 are reduced. In this state, the first frame is fixed and the second frame is slidable. Further, the linear rotary 18 becomes movable with respect to the drive shaft 16. When the motor M2 is operated to rotate the drive shaft 16 in such a state, the linear rotary 18 moves to the fifth position with respect to the drive shaft 16.
The second frame 12 moves in the A direction (front) of the drawing, and the second frame 12 moves in the A direction (front) of the second drawing with respect to the first frame 11.

Next, the leg portions 25, 25 of the second frame 12 are extended and the leg portions 15, 15 of the first frame 11 are contracted to return to the original state. By repeating the above, the traveling frame 1 becomes the second frame.
Drive in direction A (forward) in the figure. If you want to advance the traveling frame in the opposite direction, reverse the above operation.

On the other hand, when the motor M4 is operated as described above, the moving body 3 moves with respect to the traveling frame 1, and the connecting frames 5, 5,
The trowel 7 moves on the concrete floor surface via the frames 6 and 6 and the supporting portion 8. The movement of the iron 7 may be performed at the same time as the traveling frame 1 is traveling, or may be performed while the traveling frame 1 is stopped.

Then, the trowel 7 located forward of the traveling frame 1 mainly performs rough leveling work such as leveling and adjustment of concrete excess / deficiency, and the trowel 7 located rearward of the traveling direction mainly performs finish leveling work. Done.

As described above, since the two trowels 7 are provided in the embodiment, the concrete leveling work can be efficiently performed, and by operating the exciter 75, the concrete leveling work, particularly the rough leveling work can be performed. It is done more efficiently.

As described above, the traveling frame 1 is moved and the iron 7 is moved, and the concrete floor surface is leveled.

Although the motors M1 to M5 of the present apparatus are remotely operated based on the signal from the control box separated from the apparatus, it becomes more convenient if they are computer controlled by a program created in advance.

Further, in the embodiment, the traveling frame and the moving body are provided as a pair on the left and right respectively to configure the leveling device, but a single traveling frame is provided, and a single moving body is disposed on this traveling frame to provide the leveling device. It may be configured.

(Effects of the Invention) As is clear from the above description, according to the present invention, it is possible to reduce the number of workers and at the same time shorten the construction time, without requiring skill, and without causing variations in concrete. It is possible to maintain high finishing accuracy for leveling the floor surface.

[Brief description of drawings]

FIG. 1 is a plan view of a leveling device for a concrete floor, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof, FIG. 4 is a plan view of a first frame, and FIG. 5 is a front view thereof. FIG. 6 is the same side view, FIG.
Figure is a plan view of the second frame, Figure 8 is the same front view, Figure 9 is the same side view, Figure 10 is a plan view of the moving body, Figure 11 is the same front view, and Figure 12 is the same side view. FIG. 13 is a plan view of the connecting frame and the iron portion, and FIG. 14 is a front view of the same. In the drawings, 1 is a traveling frame, 3 is a moving body, and 11 is a first
A frame, 12 is a second frame, 15 and 25 are legs, 7 is a trowel, and M1 to M5 are motors.

Claims (5)

[Claims] 1. A traveling frame having a predetermined length, the traveling frame including first and second frames slidably assembled to each other in a longitudinal direction thereof, and a first frame for sliding the first and second frames. A power source, and each of the first and second frames are provided so as to be vertically movable,
A leg portion that supports a traveling frame by coming into contact with a fixed object such as a reinforcing bar below the concrete floor surface when moving downward, a second power source that moves the leg portion up and down, and the traveling frame is disposed on the traveling frame. A reciprocating movable body, a third power source reciprocating the movable body, and a movable body that is connected to the movable body and moves on the concrete floor surface by the movement of the moving body to move the concrete floor surface. A leveling device for concrete floors that consists of a leveling iron. 2. The concrete floor leveling device according to claim 1, wherein a pair of the traveling frame and the moving body are provided on the left and right sides, and the trowel is connected to a frame connecting the left and right moving bodies. 3. The leveling device for a concrete floor surface according to claim 1, wherein two said trowels are provided at intervals in the reciprocating direction of the moving body. 4. The leveling device for a concrete floor surface according to claim 1, wherein the trowel is provided with a vibrator. 5. The leveling device for a concrete floor surface according to claim 1, wherein said first to third power sources are operated by remote control.