JPH0448914B2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is mainly used in the construction of steel frame (hereinafter abbreviated as S structure) or steel frame reinforced concrete structure (hereinafter abbreviated as SRC structure) buildings. This invention relates to a building floor concrete leveling device used for leveling and leveling of concrete.

BACKGROUND TECHNOLOGY (1) Conventionally, most of the work of leveling and leveling concrete poured on the floors of buildings has been carried out by obtaining concrete. In other words, after applying a vibrator to the poured concrete and aligning the top level with a tool such as a dragonfly, use an aluminum tree, etc., while checking the level at regular intervals with a spirit level such as a laser level meter. The reality is that marks are being made to level the concrete surface.

Leveling the concrete surface determines the quality of the final floor level, and is the most important task in ensuring construction accuracy. For this reason, concrete leveling and leveling work has traditionally been carefully carried out after setting a reference level in advance by embedding spacers or the like in the formwork or by stretching piano wire.

(2) For the purpose of mechanizing the leveling and leveling work of concrete placed on floors,
Various types of concrete leveling equipment with self-propelled moving mechanisms such as wheel type or caterpillar type have been developed (for example, Japanese Patent Application Laid-open No. 137362/1983,
(See Publication No. 137363, Japanese Patent Application No. 62-39716, and what is described in the drawings.)

Problems to be Solved by the Invention (1) Manual leveling and leveling of poured concrete is unstable because it is performed while the concrete is still soft. Not only that, it is very hard work and dirty work, so it has poor workability and requires a lot of effort to ensure level accuracy. Furthermore, regarding the leveling and leveling of building floor concrete, (a) the standard level is taken on the floor form;
It is affected by the deflection of the floor surface caused by the weight of poured concrete, people, and various equipment.

(b) Setting the standard level takes time.

(c) During concrete pouring, workers, pipes, and hoses may come into contact with the standard level and cause it to go haywire.

(d) In the method of marking the poured concrete for leveling, workers manually level it at the standard level, which causes variations in level accuracy, and other problems, making it difficult to ensure level accuracy. The reality is that it is far from sufficient.

() Even when leveling and leveling the floor concrete of a building using a leveling device with a self-propelled moving mechanism that has been developed in the past, the reference level is still taken on the floor formwork, so the floor There is a problem in that it is difficult to ensure level accuracy due to the effects of surface deflection, etc. That is, since the concrete leveling device moves while taking a reaction force from the floor formwork, it is necessary to adjust the level of the leveling section every time the concrete leveling device moves, which is time-consuming.

Furthermore, when using this type of concrete leveling equipment, it is necessary to reinforce the floor surface so that it can withstand the load of the equipment, which requires a lot of effort, time, and cost. is considered to be a problem.

Furthermore, this type of concrete leveling equipment
Another problem is that the structure is complicated and the cost is high.

Means for Solving the Problems As a means for solving the above-mentioned problems of the prior art, a building floor concrete leveling device according to the present invention is provided as a preferred embodiment as shown in FIGS. 1 to 16 of the drawings. As shown in (a) Concrete is placed inside the steel columns 2, 2 of the building built on both sides along the floor of the building, and at an appropriate height from the concrete floor. A pair of longitudinal rails 3, 3 laid in parallel in a facing arrangement, and (b) installed between the longitudinal rails 3, 3 on both sides so as to be able to move vertically along the same rails 3. (c) a trolley part 11 suspended so as to be able to move traversely along a traverse rail 10 laid in the longitudinal direction of the girder 4; and (d) a trolley part 11 that is movable vertically. A concrete rough leveling blade 21 located on the front side in the direction of movement and a leveling plate 22 for concrete leveling located on the rear side are suspended from the concrete.

Furthermore, in a specific embodiment, the blade 21 for rough leveling concrete is replaced with a screw for rough leveling concrete which rotates in a fixed direction and performs a lateral feeding action on concrete.

A vibrator 35 for concrete compaction is installed on the leveling board 22 for leveling the concrete.
Implemented in a configuration with .

A horizontal bottom plate 21a is attached to the lower edge of the concrete roughing blade 21 to prevent concrete from being rolled in, and is attached long toward the rear in the direction of movement.

The blade 21 for rough leveling concrete and the leveling plate 22 for leveling are tilted at a constant concrete removal angle with respect to the traveling direction of the trolley part 11, and the angle is fixed with respect to the trolley part 11. 21 and leveling board 22
When the trolley part 11 reaches the forward limit position of the girder 4, it is raised to a height where it does not come into contact with the concrete surface, and then moved backward on the girder 4 to the backward limit position. Then, after advancing the girder one pitch in the longitudinal direction, the blade 21 and leveling plate 22 are lowered to the leveling level, and the trolley section 11 is advanced again to level and level the poured concrete. do.

A blade 21 for rough leveling concrete and a leveling plate 22 for leveling are installed so that they can be freely rotated at a desired angle and fixed in position with respect to the trolley part 11. is tilted and fixed at a constant concrete removal angle with respect to the traveling direction of the trolley section 11. Then, the trolley part 11 is advanced to level and level the poured concrete, and when the trolley part 11 reaches the forward limit position of the girder 4, the blade 21 and the leveling plate 22 are moved forward.
Raise the girder 4 to a height where it does not touch the concrete surface, turn it around 180 degrees, tilt it to the same concrete removal angle as in the forward stroke, fix it again, advance the girder 4 one pitch in the longitudinal direction, and then remove the blade 21. Then, the leveling plate 22 is lowered to a predetermined leveling level, and as the trolley section 11 moves in the backward stroke, the concrete leveling and leveling work is performed.

A grooved member is used as the traversing rail 10, and this is attached along the lower chord member 4a of the girder 4 so that the level can be adjusted.

Function: Vertical rail 3 (rail support beam 5), girder 4,
A so-called level tree is constituted by the traverse rail 10 and the like. Based on this leveling board, the trolley part 11, the blade 21 and the leveling board 22 suspended thereon are moved to level and level the concrete, so the leveling accuracy can be set using the leveling board. Adjustments can be made easily and accurately, and level accuracy can be ensured and maintained.

Since the leveling tree is supported by the steel column 2, it is not affected by the deflection of the concrete floor 1 or the adverse effects of vibration, and can ensure and maintain an accurate level. In other words, this concrete leveling device assumes the existence of steel column 2, so the building is S-framed or
Applicable to SRC construction.

The entire concrete leveling device is set on a girder 4 spanning between longitudinal rails 3, 3, and all operations and operations can be performed from above the girder 4. Therefore, there is no need for anyone to be on the concrete pouring floor 1, and there is no need to worry about disturbing the leveled and leveled concrete surface.

The trolley section 11 with the blade 21 and the leveling board 22 suspended thereon moves horizontally along the horizontal rail 10 of the girder 4 that constitutes the leveling tree.
By adjusting the level once before starting work, there is no need to check the level during work.
Work efficiency can be improved.

Embodiment Next, an embodiment of the present invention shown in FIG. 1 and subsequent figures will be described.

FIG. 1 shows the overall structure of a concrete leveling device according to the present invention. In constructing an S or SRC building, longitudinal rails 3, 3 are laid inside steel columns 2, 2 built on both sides of the concrete pouring floor surface (concrete pouring area) 1, and Girder 4 is installed over the bridge. The girder 4 is assembled so that it can freely move longitudinally (move in a direction perpendicular to the paper plane of FIG. 1) along the longitudinal rails 3, 3.

The longitudinal rail 3 is laid on a rail support beam 5 (FIG. 2), and the rail support beam 5 is supported by a steel column 2 via a bracket 6 (FIG. 1). In this way, the vertical rail 3 is attached to the steel column 2, which is a strong structure that does not cause deflection or vibration, via the level support beam 5.
Since the rail support beam 5 has been laid, once the level of the rail support beam 5 is set accurately, there is no risk of the level becoming incorrect from now on, and as a result, this rail support beam 5
The level of the vertical rail 3 laid above is also ensured with high precision, and a leveling tree can be constructed that does not require occasional level adjustment.

As shown in Fig. 4, the girder 4 is constructed as a lightweight pipe truss structure with an isosceles triangular cross section, and is a truss piece that divides the span between the vertical rails 3 (for example, about 12 m) into three. It is assembled as a prefabricated joint. The girder 4 spanned between the left and right longitudinal rails 3, 3 has wheel running parts 7, attached to both ends thereof.
7 wheels 8 are placed on the rails 3 as shown in FIG. 2, allowing for vertical movement.

A brake type positioning and fixing device 9 shown in FIG. 3 is attached to this wheel running section 7. A screw shaft with reverse threads 9b, 9b' is screwed into the middle part of a pair of brake shoes 9a, 9a' that sandwich both sides of the vertical rail 3, and the screw shaft can be rotated in the forward direction by using the handle 9c. It is configured to rotate in the opposite direction. When you turn the handle 9c in the forward or reverse direction,
The pair of brake shoes 9a, 9a' can be opened and closed by the screw movement of the reverse screws 9b, 9b',
The rail 3 can be opened to allow the girder 4 to move freely vertically, or the girder 4 can be positioned and fixed at a predetermined concrete leveling position by sandwiching the rail 3.

Next, on both lower chord members 4a, 4a of the girder 4,
As shown in FIG. 4, traverse rails 10, 10 made of channel steel facing inward are laid. A trolley portion 11 is suspended from this traversing rail 10 and traverses in the longitudinal direction of the girder 4.

The trolley part 11 becomes a moving load for the girder 4 and the traversing rail 10, and also
In view of the fact that the lower chord member 4a is bent, the level adjustment mechanism shown in FIG. 5 is provided in order to correct unevenness and level errors that occur in the traversing rail 10.

That is, the adjustment bolt 12b is screwed vertically upward into fixing nuts 12a, 12a fixed to the center of the upper and lower surfaces of the lower chord member 4a. This adjustment bolt 12b is passed through a through hole 10b provided in the lower flange 10a of the traverse rail 10, and a lock nut 12c is engaged on the lower surface of the lower flange 10a. The upper end of the adjustment bolt 12b is brought into contact with the upper flange 10c of the traverse rail 10.

The level adjustment of the traversing rail 10 is performed in a state where the trolley portion 11 is positioned at the center of the girder 4 and a centrally concentrated load is applied. To do this, first loosen the lock nut 12c a little and adjust the adjustment bolt 12.
Turn b in the forward/reverse direction. Then the fixing nut 12a
The adjusting bolt 12b moves up and down by the screw movement between the rails 12 and 12, and the level of the traversing rail 10 is adjusted in the up and down direction accordingly. Therefore, regardless of the degree of deflection of the lower chord member 4a, the traverse rail 10
The level of can be independently ensured with high precision,
It can even be used as one of the level fixed trees.
After level adjustment, the corrected state can be fixed by strongly tightening the lock nut 12c.

Note that the upper flange portion 10 of the traversing rail 10
c, the left and right rails 10, 1 are connected by the connecting material 13.
It is constrained by connecting between 0 and 0.

As shown in detail in FIGS. 6 and 7, the configuration of the trolley section 11 is such that a frame 11c, 11c is mounted on a support arm 11b with rotatable bearing rollers 11a, 11a that sandwich the upper and lower surfaces of the traversing rail 10.
is suspended horizontally. There are a total of four arms 11b, two in the front and rear directions of the traversing rail 10 (see FIG. 8), and these support the pedestal 11c.

The trolley section 11 is reciprocated along the traversing rail 10 by a motor 14 installed on the girder 4 and a drive drum 15 rotationally driven by the motor 14 (FIG. 1). That is,
Guide sheaves 16, 1 are installed at the center of both ends of the girder 4.
6, a tension sheave 18 is provided at the upper center of the same girder 4, and one end of the drive wire 19 wound around the drive drum 15 about one turn is connected to the first
The trolley section 1 passes through the guide sheave 16 on the left side of the figure.
It is connected to the front part of 1. The other end of the drive wire 19 is connected to the rear part of the trolley section 11 via a tension sheave 18 and a guide sheave 16 on the right side in FIG.

Therefore, when the motor 14 is activated in the forward or reverse direction through the operating device 20 of the motor 14, the trolley portion 11 is moved in the left-right direction in FIG.

A blade 21 for rough leveling concrete is mounted on the front side of the trolley part 11 in the direction of movement (direction of arrow F in FIG. It is set up. As shown in FIG. 8, the blade 21 and the leveling plate 22 are suitable for removing concrete to scrape off excess concrete above the leveling level and remove it to the unleveled side when the trolley section 11 moves forward. It is installed at an angle of about 45° to the left in the illustrated example.

For this purpose, first, the mount 11c of the trolley section 11 is
Immediately below, a support frame 23 assembled into a substantially rhombic planar shape as shown in FIG. 8 is integrally fixed at a fixing point indicated by the reference numeral 24 in FIG. A guide sleeve 26 of the blade 21 is fitted into the front supports 25, 25 vertically projecting downward from the support frame 23 so as to be able to move up and down. As shown in FIG.
An output shaft 28a of an air cylinder 28 whose upper end is connected with a pin to the blade 21 is connected to a reaction force receiving portion 29 on the blade 21 side by a screw mechanism whose level can be adjusted.

In short, the blade 21 is initially adjusted to a predetermined concrete leveling level by the screw mechanism of the reaction force receiving part 29, and based on the leveling level, the trolley part 11
As the blade moves forward, the poured concrete is roughly leveled to the adjustment level, and the excess concrete above the leveling level is scraped off by this blade 21 and the remaining concrete is removed along the above-mentioned removal angle of the blade 21. It eliminates them to the level side.

In this way, when the trolley part 11 reaches the forward limit position of the traversing rail 10 attached to the girder 4 (or includes the position of the end of the desired leveling area; the same applies hereinafter), the blade 21 is driven by the air cylinder 28. It is raised to a height (approximately 25 mm stroke) that does not touch the concrete surface, and the concrete surface is not disturbed when the trolley section 11 moves backward.

Similarly, a hollow support 31 of the leveling plate 22 is fitted into a rear support 30 that projects vertically downward from the support frame 23 so as to be able to move up and down. As shown in FIG. 9, the output shaft 33a of the air cylinder 33, whose upper end is connected with a pin to the metal fitting 32 of the rear support column 30,
It is connected to the reaction force receiver 34 on the hollow support 31 side by a screw mechanism that allows level adjustment.

In short, this leveling plate 22 is adjusted in advance to a predetermined concrete leveling level (finishing level) by the screw mechanism of the reaction force part 34, and based on the leveling level, the front blade 21 is adjusted as the trolley unit 11 moves forward. The concrete surface that has just been roughly leveled is pressed down to the adjusted level and finished, and excess concrete that exceeds the finished level is removed to the unleveled side along the above-mentioned exclusion angle of the leveling plate 22. It is.

In this way, when the trolley part 11 reaches the forward limit position of the traversing rail 10 attached to the girder 4, the air cylinder 33 moves the leveling plate 22 to a height (approximately 25 mm) that does not contact the surface of the poured concrete. stroke) lifting, trolley part 1
This is done so that the concrete surface is not disturbed during the backward movement of step 1.

As mentioned above, the rough leveling blade 21 scrapes and removes the excess portion of the poured concrete that is above the leveling level, so its basic shape is shown in Figures 9 and 10. As shown, it has a plow-like shape with the lower half curved forward, similar to the earth removal plate of a bulldozer, and its size is approximately
It is said to be 450mm, and the horizontal length is about 2000mm.

However, if the lower edge of the blade 21 is simply sharpened like a spade, when a fluid material such as fresh concrete is scraped off, some of the scraped concrete will reach under the blade 21. There is a problem in that the blade 21 is rolled backwards, and the surface of the concrete after the blade 21 passes is wavy and uneven. Specifically, as shown in FIG.
The structure has a width of about 150 mm. In this way, the bottom plate 21a prevents concrete from being rolled in,
It is possible to produce a uniform level.

The leveling plate 22 is for leveling with higher precision by pressing down on the concrete surface after the rough leveling blade 21 has scraped off the concrete above the leveling level.
For this reason, the leveling board 22 is made by bending an iron plate to a width of 190 mm.
mm, height is 150mm, length is about 2000mm (9th
Figure). As shown in FIG. 12, two vibrators 35, 35 are installed on this leveling board 22 at two positions that divide the entire length into approximately three equal parts, and the vibration caused by the vibrators 35 is used to improve the concrete quality. This provides a good pressing effect on the surface and good sliding of the leveling board 22.

The trolley part 11 on which the blade 21 and the leveling plate 22 are hung reaches the forward limit position along the traverse rail 10 of the girder 4, and the blade 21 is moved to the air cylinder 28 and the leveling plate 22 is moved to the air cylinder 33.
When the trolley section 11 is pulled up, the motor 14 is reversely operated by the operating device 20 to return the trolley section 11 to the starting point of the traversing rail 10. Next, the girder 4 is advanced by one pitch toward the unleveled side, and after fixing that position, the blade 21 and the leveling plate 22 are lowered to the original leveling level. Then, the motor 14 is rotated normally again to move the trolley part 11 forward, and leveling and leveling of the poured concrete is performed for one span of the girder 4. Thereafter, the leveling and leveling of the poured concrete on the floor surface 1 is accomplished by repeating the same work process.

In addition, as a preparatory work for using this concrete leveling device, it is preferable to roughly distribute the concrete placed on the floor surface 1 using a dragonfly or the like.

In addition, after finishing the leveling and leveling work of the concrete poured on the floor 1, the trolley part 11 and the blade 2 suspended thereon are removed.
1. Remove the leveling board 22 from the girder 4, remove the girder 4 from the vertical rail 3, and also remove the vertical rail 3, rail support beam 5, and bracket 6 from the steel support 2, and then move to the next upper floor, etc. It can be carried around and used for concrete leveling work.

Different Embodiment (Part 1) In the above embodiment, the longitudinal movement of the girder 4 is carried out manually by hand. 8 can be implemented as a motor-driven type that is rotationally driven by a motor.

(Part 2) In the above embodiment, the blade 21 for rough leveling concrete and the leveling plate 22 following it are constructed separately, but as shown in FIG. It is also possible to extend it further and implement it as an integral structure that also serves as the leveling plate 22.

(Part 3) Blade 2 for rough leveling concrete
1 is rotated in a certain direction to perform concrete feeding action, for example, JP-A-62-137362~3.
It can be implemented by replacing the screw for rough leveling described in the publication. A configuration in which the blade 21 is combined with a screw may also be used.

(Part 4) As a mechanism for vertically moving the rough leveling blade 21 and the leveling plate 22, in this embodiment, the air cylinders 28 and 33 have good responsiveness, are lightweight, and have no problem of oil leakage. Yes, but not limited to this. It can also be implemented using a hydraulic cylinder, a screw feed mechanism, or a rack and pinion mechanism.

Second Embodiment FIGS. 14 to 16 show an embodiment in which the blade 21 and leveling plate 22 suspended from the trolley portion 11 are horizontally rotatable.

First, a bracket 40 protruding from the center of the back surface of the blade 21 is rotatably attached to a supporting bracket 42 by a vertical shaft pin 41. The supporting bracket 42 is fixed to the center of a connecting beam 45 that laterally connects the slide sleeve 44 of the blade 21. The slide sleeve 44 is fitted onto a front support 43a of the rotating frame 43, which projects vertically downward, so as to be able to move up and down. Also, on the back side of the same blade 21, there is a semicircular shape centered on the shaft pin 41 and of a size that extends beyond the position of the connecting beam 45 and is approximately inscribed in the left and right slide sleeves 44, 44 (see FIG. 15). A rotating frame 46 is attached. Fixing pins 47, 47 dropped into both end positions of the connecting beam 45
The blade 21
The angle can be fixed at an angle appropriate for removing excess concrete with respect to the traveling direction (arrow F) of the trolley section 11.

A feed screw shaft 50 is screwed into a female threaded member 51 fixedly provided on the supporting bracket 42 (FIG. 15). The feed screw shaft 50 has its upper end rotatably supported by a bearing 49 fixed to the front support 43a of the rotating frame 43, and is installed vertically downward. The feed screw shaft 50 is rotated by a sprocket 52 at the upper end of the feed screw shaft 50 by a motor (or manual handle) not shown. When the feed screw shaft 50 is rotated in the forward and reverse directions, the bracket 4
The bracket 42 and, by extension, the blade 21 are moved up and down by the screw movement with the female screw member 51 of No. 2, and level adjustment is performed.

The leveling plate 22 is arranged perpendicular to the traveling direction (direction of arrow F) of the trolley part 11 (FIG. 15),
The hollow support 53, which stands upright on the leveling plate 22, is fitted into the rear support 43b of the rotating frame 43, which projects vertically downward, so as to be able to move up and down. Same rear support 43b
The upper part of the feed screw shaft 55 is rotatably supported by a bearing 54 fixed to the upper part of the feed screw shaft 55, and is arranged vertically downward. This feed screw shaft 55 is screwed into a female threaded member 57 of a bracket 56. The bracket 56 is fixed to a substantially central portion of a connecting member 59 that extends horizontally between the left and right hollow supports 53, 53. Rotation of the feed screw shaft 55 is transmitted to a sprocket 58 at the upper end from a motor (or manual handle) not shown. When the feed screw shaft 55 is rotated in the forward and reverse directions, the bracket 56 and, in turn, the leveling plate 22 are moved in the vertical direction by the screw movement with the female threaded member 57, and the leveling plate 22 can be raised and lowered or the level can be adjusted. It tightens it.

By the way, the above-mentioned turning frame 43 is also suspended from the frame 11c of the trolley part 11 so as to be able to turn horizontally. As shown in detail in FIG. 16, the structure of the rotating portion is such that a rotating shaft 62 is rotatably supported vertically via a bearing 61 in a bearing sleeve 60 fixed to a pedestal 11c. A rotating frame 43 is attached to the lower end of this vertical rotating shaft 62 with a nut 63. Nylon bearing plates 64a and 64b are interposed in the gap between the pedestal 11c and the rotating frame 43 in a circular arrangement around the rotating shaft 62, thereby preventing the rotating frame 43 from swinging when turning. There is.

Although the mechanism for positioning and fixing the rotating position of the rotating frame 43 is not shown, for example, a pin mechanism similar to that shown in FIG. 15 is employed.

In the case of the concrete leveling device having the above-mentioned rotating blade 21 and leveling plate 22, the construction procedure for leveling and leveling the poured concrete is performed as follows.

When the trolley part 11 reaches the forward limit position of the traversing rail 10, the blade 21 rotates the feed screw shaft 50, and the leveling plate 22 rotates the feed screw shaft 55.
rotate and raise each to a height that does not make contact with the concrete surface.

Next, the rotating frame 43 is horizontally rotated approximately 180 degrees.
This turning operation can be performed by a motor drive method or a manual method. Besides, blade 21
In this case, in order to ensure that the scraped excess concrete above the leveling level is removed to the unleveled side, the concrete is turned 90 degrees in the opposite direction and its position is fixed to the rotating frame 43 with a stop pin 47. Next, the girder 4 is advanced one pitch in the longitudinal direction and fixed at that position, the blade 21 and the leveling plate 22 are lowered to the original leveling level, and the trolley part 11 is advanced in the return direction to level the concrete. and carry out leveling work.

Effects of the present invention As described in detail above in conjunction with the embodiments, the building floor concrete leveling device according to the present invention includes vertical rails 3 (rail support beams 5), girders 4, horizontal Regarding the so-called leveling tree composed of the rails 10 and the like, level accuracy can be set and maintained mechanically, and concrete can be leveled and leveled stably.

In addition, the leveling tree is supported by the steel pillars 2 of the building built on both sides along the floor of the building where concrete has been poured.
It is not affected by any adverse effects such as deflection or vibration of the floor surface 1.
Accurate leveling is possible. Since concrete leveling and leveling within the area where the vertical rail 3 is laid can be carried out without checking the level during the work, construction efficiency is greatly improved.

The girder 4 is installed on the longitudinal rails 3, 3 on both sides, all the reaction force is transferred to the steel column 2, and the trolley part 11 is reciprocated along the transverse rail 10 attached to this girder 4. Since the concrete is leveled and leveled and no load is applied to the floor 1, there is no need to increase the deflection or vibration of the floor 1. Therefore, there is no need for reinforcement of the floor surface 1, which is always required when using the conventional self-propelled concrete leveling device with a moving mechanism.
The effort, time, and cost can be saved accordingly.

Furthermore, the conventional concrete leveling equipment with a self-propelled moving mechanism had the problem that the leveled concrete surface was disturbed again by the self-propelled moving mechanism and the feet of the person attached to the leveling device. However, the present invention does not have such problems at all.

[Brief explanation of drawings]

Fig. 1 is a front view showing the overall structure of the first embodiment of the concrete leveling device according to the present invention, Fig. 2 is an enlarged detailed view of the middle part of Fig. 1, and Fig. 3 is a detailed view of the brake mechanism. Figure 4 is a cross-sectional view of Figure 1.
Fig. 5 is a detailed view showing the level adjustment mechanism corresponding to the middle part of Fig. 4, Fig. 6 is a detailed view of the middle part of Fig. 1, Fig. 7 is a sectional view taken along the - arrow in Fig. 6, and Fig. 8 is a detailed view of the level adjustment mechanism corresponding to the middle part of Fig. 4. A plan view of the trolley part and the blade 21 and leveling board suspended thereon, FIG. 9 is a view taken in the direction of the arrow in FIG. 8,
Figure 10 is a view in the direction of the arrow in Figure 8, Figure 11 is a detailed view of the blade, Figure 12 is a view in the direction of the XII arrow in Figure 8,
Figure 3 is a sectional view showing different embodiments of the blade;
Fig. 14 is a front view showing the rotating part, blade, and leveling plate of the revolving type concrete leveling device, Fig. 15 is a sectional view taken along arrow 15-15 in Fig. 14, and Fig. 16 is a 16-16 in Fig. 14. -16 arrow sectional view.

Claims (1)

[Scope of Claims] 1 (a) A pair of vertical columns laid in parallel and facing each other inside the steel columns 2 of the building built on both sides along the floor of the building where concrete has been poured. row rails 3, 3; (b) a girder 4 installed between the vertical rails 3, 3 on both sides and capable of vertical movement along the same rails 3; and (c) the girder. (d) a trolley part 11 suspended from the trolley part 11 so as to be movable horizontally along a traverse rail 10 laid in the longitudinal direction of the trolley part 11; A floor concrete leveling device for a building, comprising: a pair of a blade 21 for rough leveling concrete and a leveling plate 22 for leveling concrete located on the rear side. 2. The floor concrete leveling device for a building as set forth in claim 1, characterized in that a screw for rough leveling concrete is installed which is rotated in a fixed direction for rough leveling concrete. 3. The floor concrete leveling device for a building as set forth in claim 1, wherein the leveling plate 22 for leveling concrete is attached with a vibrator 35 for compacting concrete. 4. The blade 21 for rough leveling concrete is characterized in that a horizontal bottom plate 21a is attached to the lower edge of the blade 21 to prevent concrete from being rolled in. Floor concrete leveling equipment for buildings mentioned in Section 1. 5. The blade 21 for rough leveling concrete and the leveling plate 22 for leveling are tilted at a constant concrete removal angle with respect to the traveling direction of the trolley unit 11, and the angle is fixed to the trolley unit 11.
When the trolley part 11 reaches the forward limit position of the girder 4, the concrete roughing blade 21 and leveling plate 22 are raised to a height where they do not come into contact with the concrete surface, and then moved backward on the girder 4 to the backward limit position. The girder 4 is advanced one pitch in the longitudinal direction, and then the blade 2
1 and the leveling plate 22 are lowered to the leveling level, and the trolley part 11 is advanced again to level and level the concrete. Floor concrete leveling equipment for buildings described in paragraph 3 or 4. 6 The blade 21 for rough leveling concrete and the leveling plate 22 for leveling are installed so that they can be freely rotated at a desired angle and fixed in position with respect to the trolley part 11, and the blade 21 for rough leveling concrete and the leveling plate 22 for leveling The blade 21 and the leveling plate 22 are fixed at an angle of a certain concrete removal angle with respect to the traveling direction of the trolley part 11, and the trolley part 11 is moved forward to level and level the floor concrete. , the trolley part 11 is the girder 4
When the advance limit position is reached, the concrete roughing blade 21 and the leveling plate 22 are raised to a height where they do not touch the concrete surface, are turned about 180 degrees, and the concrete is moved to the same level as in the forward stroke. Tilt it to the exclusion angle and fix it again, advance the girder 4 one pitch in the longitudinal direction, and then lower the concrete rough leveling blade 21 and leveling plate 22 to the leveling level,
Floor concrete for a building as set forth in claim 1 or 2 or 3 or 4, characterized in that the trolley unit 11 is moved in a backward stroke to level and level the concrete. Leveling device. 7. A floor of a building according to claim 1, characterized in that the traversing rail 10 is made of a channel member and is attached along the lower chord member 4a of the girder 4 so that the level can be adjusted. Concrete leveling equipment.