JPH0618553U - Concrete leveling equipment - Google Patents

Abstract

(57) [Summary] [Purpose] With one unit, rough equalization of concrete, leveling,
The purpose of the present invention is to provide a concrete leveling device that can perform work of ruler and ruler to improve work efficiency and reduce construction cost. [Structure] A bogie 1 having traveling wheels 2, a leveling blade 12 in which a blade body 18 is fixed to a rotating shaft D horizontally supported on the rear side of the traveling wheel 2, and an engine 4 for rotationally driving the rotating shaft D. And a tamper plate 25 supported on the rear side of the leveling blades 12 so as to be vertically movable, and a tamper plate 2 driven by a cam 28 fixed to the rotating shaft D and the cam 28.
A diaphragm drive mechanism 29 including a link mechanism 26 for driving the motor 5 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete leveling device for leveling concrete in floor concrete work, roadbed, or bottom work of each structure.

[0002]

[Prior art]

 Conventionally, in floor concrete work in which concrete is poured to form slabs, the steps of concrete pouring, rough leveling, leveling, and ruler cutting are sequentially performed. Many of these operations rely on the manual work of each worker, and many workers with tools etc. go to the site for each process.

[0003]

[Problems to be solved by the device]

 However, in the case of the concrete construction as described above, the following problems were encountered. That is, in the above-mentioned construction work, each work is a separate work, and after the previous work is completed, the next work is started, which causes a decrease in work efficiency. In addition to the rough work of concrete being a heavy work, the leveling and ruler slinging must be done by the worker in a mid-waisted position, resulting in poor workability.

On the other hand, the above-mentioned construction requires a skilled worker for each work, and requires a large number of skilled workers to complete the work. In recent years, it is difficult to secure human resources due to a shortage of specialized workers. In addition to the extension of the period, it was also the cause of the increase in labor costs and construction costs.

In response to these problems, a concrete leveling device that automatically performs this leveling work has been developed in recent years. However, all of the concrete leveling equipment are large and heavy, so they lack mobility, and it takes time to set up the equipment and make other preparations.

The present invention has been made in view of the above-mentioned problems, and it is possible to improve the work efficiency and reduce the construction cost by performing the rough leveling of the concrete and the ruler work by one unit. The purpose of the present invention is to provide a compact and highly mobile concrete leveling device.

[0007]

[Means for Solving the Problems]

 The concrete leveling device of the present invention is a leveling device comprising a bogie having traveling wheels, and a vane body fixed to a shaft body rotatably supported by the bogie on the rear side of the traveling wheels with a horizontal axis. A blade, a drive source for rotationally driving the shaft, a diaphragm supported by the carriage so as to be vertically movable behind the leveling blade, a cam fixed to the shaft, and the shaft. And a diaphragm driving mechanism including a link mechanism that drives the diaphragm when driven by the cam.

[0008]

[Action]

 According to the present invention, the shaft is rotated by the drive source while the carriage is running, and the leveling blades with the root body fixed are rotated. At this time, in the diaphragm drive mechanism, the link mechanism is driven by the rotation of the cam fixed to the shaft, thereby transmitting the displacement amount of the cam to the diaphragm to move the diaphragm up and down.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 respectively show a concrete leveling device. In the figure, reference numeral 1 is a dolly. This trolley 1 is equipped with a pair of left and right traveling wheels 2, 2 at its lower part, and is equipped at its upper part with a V-shaped handle 3 extending forward for operating this device. Further, an engine 4 (driving source) is mounted on the front part of the bogie 1, and the traveling wheels 2 and 2 are driven by the engine 4 with a horizontal rotation axis A (FIG. 1). 1 is configured so that it can travel freely. The engine 4 is provided with an output shaft B (FIG. 1) in addition to the rotary shafts A (FIG. 1) of the traveling wheels 2, 2.

Fins 2a, 2a, ... Are radially provided on the circumference of the traveling wheels 2 and 2 at a predetermined angle with respect to the radial direction of the traveling wheel 2.

Further, as shown in FIG. 1, the carriage 1 is provided with a mounting bracket C at the rear part. A first frame member 5, which is U-shaped in a plan view, is pin-supported by the mounting bracket C. The lower end portions 6, 6 of the first frame member 5 which coincide with the rotation axes A of the traveling wheels 2, 2 have legs 8, 8 of a second frame member 7 extending rearward and having a U-shape in plan view. Is pin-supported on an extension of the rotation axis A. On the lower side of the second frame member 7, sled plates 9, 9 that are grounded to the ground are fixed. Inside the sled plates 9, 9, there are provided brackets 11, 11 supported by a position adjusting mechanism 10 described later so as to be vertically movable. Between the brackets 11, 11, leveling vanes 12, 12 for roughly leveling the concrete are supported with a rotation axis D. With this configuration, for example, even if the handle 3 is moved up and down when the cart 1 is operated, the second frame member 7 should maintain the level supported by the sled plate 9 sliding on the surface of the cast concrete. Is possible.

The driving force of the output shaft B is obtained by causing the first gear 13 provided on the output shaft B and the second gear 14 arranged at the rear to cause the endless chain 15 to wind. Is transmitted as rotation of the shaft 17 in the axial direction by the first gear box 16 linked to the second gear 14.

FIG. 3 shows the details of the rotation drive mechanism of the leveling blades 12 and the position adjusting mechanism 10. The leveling blade 12 has a rotation axis D in the horizontal direction, and the blade main bodies 18, 18, ... Are radially fixed to the rotation axis D. At the center of the rotary shaft D, a second gear box 19 for converting the driving force of the shaft 17 into the rotary driving force of the rotary shaft D is provided. The tip of the shaft 17 is rotatably supported by the gear box 19. A cylindrical outer shaft 21 is rotatably supported in the gear box 19 via bearings 20, 20. A bevel gear 21a is provided on the outer shaft 21, and the rotational force of the shaft 17 is transmitted to the bevel gear 21a via the bevel gear 17a provided at the tip of the shaft 17. A rotating shaft D 1 is arranged in the outer shaft 21, and the outer shaft 21 and the rotating shaft D are spline-connected. Moreover, the outer shaft 21 is coupled to the rotating shaft D via a spherical bearing 22. Based on this configuration, the rotational force of the shaft 17 is transmitted to the horizontal rotation axis D. On the other hand, the rotating shaft D is rotatable about the position where the rotating shaft D and the spherical bearing 22 are joined as a fulcrum, and both end sides of the rotating shaft D can rotate up and down with respect to the horizontal axis by α, respectively. Even when the leveling blade 12 is not held in the horizontal state, the leveling blade 12 can rotate while maintaining the horizontal state.

The position adjusting mechanism 10 includes a level adjusting motor 10a, a pinion 10b rotated by the level adjusting motor 10a, and a rack 10c. The rotating shaft D and the bracket 11 are supported on the lower end of the rack 10c. Further, as shown in FIG. 1, a laser receiver 23 is provided at the upper rear end of the second frame member 7. In this configuration, the laser receiver 23 controls the level adjusting motor 10a of the position adjusting mechanism 10 by the level adjusting motor 10a of the position adjusting mechanism 10 based on the light receiving position of the laser light emitted from the laser oscillator (not shown). The pinion 10b is driven to move the rotating shaft D and the bracket 11 up and down. In this configuration, the laser receiver 23 and the control unit body form a control unit 24.

As shown in FIG. 1, at the rear end of the bracket 11, a tamper plate (vibration plate) 25 for leveling and ruled concrete is movably supported. The tamper plate 25 is made of a mesh material, and by moving the tamper plate 25 up and down, the aggregate can be embedded in the placed concrete. Further, a rubber sheet 25a is provided at the rear end of the tamper plate 25, and the rubber sheet 25a can smooth the surface of the concrete.

The link mechanism 26 is provided on the upper end of the tamper shaft 27 attached to the upper surface of the tamper plate 25. One end of the tamper plate side link 26a of the link mechanism 26 is pin-supported by the upper end E of the tamper shaft 27 and is rotatably provided. Further, the tamper shaft 27 is provided with a spring 27a. A cam side link 26b is pin-connected to the other end of the tamper plate side link 26a. A cam roller 26c is provided at the tip of the cam side link 26b. On the other hand, cams 28 having a predetermined displacement amount are provided at both ends of the rotary shaft D. The cam roller 26c of the link mechanism 26 is in contact with the cam 28. With the tamper plate drive mechanism 29 including the link mechanism 26 and the cam 28, the movement displacement of the cam roller 26c that is in contact with the cam 28 is caused by the rotation of the cam 28 fixed to the rotating shaft D. , Is transmitted to the tamper plate 25 via the link mechanism 26 to move the tamper plate 25 up and down.

Hereinafter, the leveling operation of floor concrete work by the concrete leveling apparatus of this embodiment will be described. First, a concrete leveling device is placed in the cast concrete. Then, the laser light receiver 23 provided on the second frame member 7 receives the laser light oscillated from the laser oscillator (not shown). The motor 10a of the position adjusting mechanism 10 is rotated in the direction determined by the control unit 24 according to the height of the received light to vertically move the rack 10c. As a result, the vertical positions of the leveling blades 12 and the tamper plate 25 are adjusted to determine the rough leveling of the concrete, leveling, and the height of the ruler shear.

In this state, while operating the concrete leveling device with the handle 3, the concrete leveling device is moved forward at an appropriate working speed. Then, the leveling blades 12 are rotationally driven around the rotation axis D to roughly level the cast concrete. The movement of the cam roller 26c, which is in contact with the cam 28 of the tamper plate drive mechanism 29 rotating with the rotation axis D of the leveling blade 12, is moved by the link mechanism 26 on the tampered surface of the concrete surface after the roughening is completed. The tamper plate 25 is moved up and down by being transmitted to the plate 25, and leveling is performed to a predetermined level. Further, the rubber sheet 25a provided at the rear end of the tamper plate 25 is used to make a ruler for smoothing the concrete surface. In this way, the leveling work of the placed concrete is completed by the concrete leveling device of the present invention.

As described above, according to the concrete leveling apparatus of the present embodiment, the rotating shaft D is rotated by the engine 4 while the truck 1 is running, and the leveling blades 12 with the blade body 18 fixed are provided. By rotating the, the placed concrete can be roughly leveled. At this time, in the vibrating plate drive mechanism 29, the link mechanism 26 is driven by the rotation of the cam 28 fixed to the rotary shaft 18, so that the displacement amount of the cam 28 is transmitted to the tamper plate 25 to move the tamper plate 25 up and down. It is possible to level the concrete that has been moved and roughened, and to perform ruler shearing. Therefore, a single unit can perform the steps of rough leveling of cast concrete, leveling, and ruler setting. For this reason, the work efficiency is improved, and moreover, since the operation can be performed by a small number of people, the worker can be relieved from heavy work. Further, since no skilled worker is required for each work, the construction period can be shortened and the construction cost can be reduced. Further, in the concrete leveling apparatus of the present embodiment, the laser light receiver 23 and the position adjusting mechanism 10 automatically and continuously perform rough leveling, leveling and ruled at a preset level. Therefore, it is possible to uniformly form a floor with a high construction accuracy at a predetermined level. Further, since the concrete leveling apparatus of this embodiment has a simple structure in which the leveling blades 12 and the tamper plate 25 are provided on the trolley 1 equipped with the engine 4, there is no power cord, and the handle 3 is operated. By doing so, the operator can operate it alone, and it is about the size and weight of a hand-operated cultivator, and has excellent maneuverability.

[0020]

[Effect of device]

 According to the concrete leveling device of the present invention, while driving the bogie, the shaft is rotated by the drive source to rotate the leveling blades with the blade main body fixed, whereby the placed concrete is roughly leveled. You can do it. At this time, in the diaphragm drive mechanism, the link mechanism is driven by the rotation of the cam fixed to the shaft body, and the displacement of the cam is transmitted to the diaphragm to move the diaphragm up and down for rough equalization. You can level the concrete that has been crushed and slide the ruler. Therefore, it is possible to significantly improve the work efficiency and reduce the construction cost by performing the roughening of the concrete, leveling, and ruler cutting work with one unit. In addition, the trolley provided with the drive source is provided with a leveling blade, a diaphragm, and a diaphragm drive mechanism, so that the structure is simple and compact, lightweight, and excellent in maneuverability.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a floor concrete leveling device of the present invention.

FIG. 2 is a plan view of the device.

FIG. 3 is a front cross-sectional view of a main part showing details of a leveling blade rotation drive mechanism and a position adjusting mechanism of the apparatus.

[Explanation of symbols]

 1 trolley 2 traveling wheel 4 engine (driving source) 12 leveling blade 18 blade body 25 tamper plate (vibration plate) 26 link mechanism 28 cam 29 diaphragm drive mechanism D axis

Claims (1)

[Scope of utility model registration request] 1. A concrete leveling device for leveling concrete in floor concrete work, roadbed, or floorboard work for various structures, comprising: a trolley having traveling wheels; On the rear side, a leveling blade in which a blade body is fixed to a shaft body that is rotatably supported with a horizontal axis line, a drive source that rotationally drives the shaft body, the carriage, and the rear side of the leveling blade. A vibration plate drive mechanism that is vertically movably supported on the side, a cam fixed to the shaft body, and a link mechanism that drives the vibration plate by following the cam when the shaft body rotates. A concrete leveling device comprising: