NL2011045C2 - System of concrete floor and concrete floor regulating device, corresponding concrete floor regulating device, according method and concrete floor. - Google Patents

System of concrete floor and concrete floor regulating device, corresponding concrete floor regulating device, according method and concrete floor. Download PDF

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Publication number
NL2011045C2
NL2011045C2 NL2011045A NL2011045A NL2011045C2 NL 2011045 C2 NL2011045 C2 NL 2011045C2 NL 2011045 A NL2011045 A NL 2011045A NL 2011045 A NL2011045 A NL 2011045A NL 2011045 C2 NL2011045 C2 NL 2011045C2
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NL
Netherlands
Prior art keywords
concrete floor
knife
concrete
leveling
carriage
Prior art date
Application number
NL2011045A
Other languages
Dutch (nl)
Inventor
Franciscus Johannes Ardina Berlo
Original Assignee
Berlo Bedrijfsvloeren B V Van
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Application filed by Berlo Bedrijfsvloeren B V Van filed Critical Berlo Bedrijfsvloeren B V Van
Priority to NL2011045A priority Critical patent/NL2011045C2/en
Priority to NL2011045 priority
Application granted granted Critical
Publication of NL2011045C2 publication Critical patent/NL2011045C2/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/10Devices for levelling, e.g. templates or boards
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00Implements for finishing work on buildings
    • E04F21/20Implements for finishing work on buildings for laying flooring
    • E04F21/24Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/241Elongated smoothing blades or plates, e.g. screed apparatus
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00Implements for finishing work on buildings
    • E04F21/20Implements for finishing work on buildings for laying flooring
    • E04F21/24Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/241Elongated smoothing blades or plates, e.g. screed apparatus
    • E04F21/244Elongated smoothing blades or plates, e.g. screed apparatus with means to adjust the working angle of the leveling blade or plate

Abstract

A system of a concrete floor and a concrete floor levelling device, wherein the concrete floor comprises a floor reinforcement having reinforcement profiles, which have a mutual spacing; and concrete, which has been poured over the floor reinforcement and is still fluid or viscous. The concrete floor levelling device comprises a blade carriage suitable for, during use, being moved in a direction of travel over the concrete floor, so that the still fluid or viscous concrete behind the blade carriage is levelled by the concrete levelling device; and a levelling blade coupled with the blade carriage such that, during use, the levelling blade is kept at a defined height on the concrete floor, whereby the concrete floor is levelled by the levelling blade. The blade carriage is provided with at least one wheel set, which is/are constructed and arranged to each bear a therewith associated part of the blade carriage on a reinforcement profile transversely to the direction of travel. Each wheel set comprises at least two wheels, each having its own rotation axis, which rotation axes are displaced with respect to each other over a spacing in a direction transversely to the rotation axes and parallel to the direction of travel of the concrete levelling device. The spacing between the rotation axes is unequal to the spacing between the reinforcement profiles or a multiple thereof.

Description

Concrete floor and concrete floor leveling system, corresponding concrete floor leveling device, corresponding method and concrete floor. FIELD OF THE INVENTION

The invention relates to a system of a concrete floor and a concrete floor leveling device. The concrete floor comprises a floor reinforcement with reinforcement profiles, the reinforcement profiles being spaced apart; and concrete poured over the floor reinforcement and still liquid or viscous. The concrete floor leveling device comprises a knife carriage suitable for being moved over the concrete floor during use in a direction of movement so that the still liquid or viscous concrete behind the knife carriage is leveled by the concrete leveling device; and a leveling knife coupled to the knife carriage such that the leveling knife is held on a concrete height on the concrete floor during use, whereby the concrete floor is leveled by the leveling knife. BACKGROUND OF THE INVENTION

Such a concrete floor and concrete floor leveling device are known from practice. The knife trolley with the leveling knife attached to it is pulled over the newly poured concrete floor, whereby the wheels of the knife trolley will in practice not drive over but through the just poured concrete. Reinforcement profiles are present in the concrete, for example a braid made of reinforcing steel, as a result of which the wheels will actually move over these reinforcement profiles. Since the reinforcement profiles have a mutual distance, the wheels will make an up and down movement when they respectively come onto a reinforcement profile and between reinforcement profiles.

The suspension of the knife therefore also experiences an up and down movement. It is now possible to bring the leveling knife to a desired height level with the help of an adjustable height and a control of this height. However, with the considerable up and down movement of the wheels of the knife carriage, known controls are unable to properly hold the leveling knife at a defined height. The result is that the surface of the hardened concrete floor does not show a nice, smooth course and height differences.

Furthermore, the concrete floor leveling device must be turned at the walls of a room where the floor ends. The known leveling devices are bulky, not very manoeuvrable and therefore show problems when turning, which are again apparent in height variations in the concrete floor at the turning points. SUMMARY OF THE INVENTION

It is an object of the invention to provide a system of concrete floor and concrete floor leveling device, a separate concrete floor leveling device and corresponding method with which just poured concrete floors can be leveled to a high flatness.

It is another or alternative object of the invention to provide a concrete floor leveling device that is highly manoeuvrable.

It is another or alternative purpose to provide a concrete floor leveling device whose height of the leveling knife can be adjusted and controlled very accurately. One or more of the foregoing objectives are achieved by means of a system of a concrete floor and a concrete floor leveling device, wherein the concrete floor comprises - a floor reinforcement with reinforcement profiles, the reinforcement profiles being spaced apart; and - concrete poured over the floor reinforcement and still liquid or viscous concrete, and the concrete floor leveling device - a knife carriage suitable for being moved in a direction of movement over the concrete floor during use so that the still liquid or viscous concrete behind the knife carriage is leveled by the concrete leveling device; and - a leveling knife coupled to the knife carriage such that the leveling knife is held at a defined height on the concrete floor during use, whereby the concrete floor is leveled by the leveling knife, the knife carriage being provided with at least one set of wheels, each of which is an associated part of the carrying a knife carriage, which wheel set comprises at least two wheels, each with its own axis of rotation, which axis of rotation are displaced relative to each other by a mutual distance in a direction transverse to the axis of rotation and parallel to the direction of travel of the concrete equalizing device, wherein the mutual distance between the axis of rotation is unequal to the mutual distance between the reinforcement profiles or a plurality thereof, such that undersides of the wheels touch a virtual flat surface parallel to the direction of movement and the axis of rotation and at least one of the wheels in the wheel set does not rely on a reinforcement profile if a rotati The axle of another wheel in the wheel set is located directly above a reinforcement profile, and in a separate corresponding concrete floor leveling device.

Because the axles of the wheels in a wheel set have a mutual distance, not all wheels in the wheel set will simultaneously rest on the reinforcement profiles in the just poured concrete floor. For the most part one of the wheels will be supported on a reinforcement profile and the other wheel or the other wheels will "float" in the space between reinforcement profiles.

In a preferred embodiment, the knife carriage is provided with two wheel sets, a first wheel set associated with a right-hand side and a second wheel set associated with a left-hand side of the knife carriage as seen with respect to the direction of movement, whereby a very good stability of the knife carriage is obtained.

In another preferred embodiment, the mutual distance over which the rotational axes of the wheels in a wheel set are shifted relative to each other corresponds to a fraction of a distance between reinforcement profiles in the concrete floor, or this fraction plus one or more times the distance between the reinforcement profiles, which counteract an up and down movement of the knife carriage when moving over the reinforcement profiles.

In a further preferred embodiment, the fraction is determined by one divided by the number of wheels in the wheel set, with which the up and down movement is minimized in the most efficient manner.

In yet a further embodiment, the distance between the axis of rotation of the wheels in the wheel set is adjustable, with which the leveling device can be easily adjusted at different mutual distances from the reinforcement profiles.

In yet another embodiment, the rotation axes are rigidly connected to the knife carriage, with which the positions of the undersides of the wheels in a wheel set will not vary with each other during movement of the knife carriage over the reinforcement profiles, which results in a more even movement of the knife cart results.

In yet a further embodiment, the wheels have a width between 0.5 and 3 centimeters, with which the wheels pulled forwards in the liquid or viscous concrete will be narrow and will quickly close shut, so that these in the front cannot affect the acquisition of an even concrete floor. In one embodiment, the wheels are formed from metal discs, preferably from aluminum. A metal is durable, and aluminum is also light.

In another embodiment, the knife carriage comprises a knife carriage frame to which the leveling knife is coupled, which knife carriage frame is made up of a framework of tubes and / or profiles of aluminum, in an embodiment of truss aluminum, with which a very light and sturdy knife carriage can be obtained. A lighter knife cart is easier to handle.

In one embodiment, the leveling knife, viewed in the direction of movement, is coupled at the rear of the concrete leveling device to the knife carriage.

In another embodiment the leveling knife is coupled to the knife carriage by means of at least one hydraulic cylinder, with which the defined height of the leveling knife can be adjusted. In this way, the height of the leveling knife can be easily adjusted and adjusted. Preferably, a left and right side of the leveling knife are provided with its own associated hydraulic cylinder.

In a preferred embodiment, the concrete leveling device comprises a hydraulic control device which is adapted to control a defined height of the leveling knife with a PID control of a pressure in the hydraulic cylinder (s). A very accurate control of the height of the leveling knife can hereby be achieved.

In one embodiment the leveling knife is coupled to a measuring device for determining a height of the leveling knife with the aid of a laser measuring device, with which the height of the leveling knife can be determined directly for achieving an accurate control of this height.

In a preferred embodiment, the concrete floor leveling device comprises a tractor carriage, which is coupled to the knife carriage and adapted for advancing the concrete floor leveling device in the direction of movement. A good and manageable control of the leveling device is hereby achieved, and various provisions can be placed on the tractor wagon to keep the knife wagon as light as possible.

In an advantageous embodiment, a hydraulic system for controlling the hydraulic cylinder (s) is arranged on the tractor truck, whereby the knife carriage can be kept light in weight.

In a preferred embodiment, the tractor carriage and the knife carriage are mutually coupled to a coupling device comprising a first and a second coupling rod, which coupling rods run substantially horizontally and are arranged above each other, the first coupling rod being rigid at one first end with one of the knife carriage and a tractor carriage is connected and connected at one end by a ball joint to the other of the knife carriage and tractor carriage, and wherein the second coupling rod is connected at both ends by a ball connection to the knife carriage and the tractor carriage. By means of such a coupling, the leveling device cannot buckle about a horizontal axis transversely of a longitudinal axis of the leveling device, but can pivot about a vertical axis and twist around the longitudinal axis.

In another aspect the invention provides a method for laying a concrete floor from the above-mentioned system and / or with the aid of an above-mentioned concrete floor leveling device, comprising - applying a floor reinforcement with reinforcement profiles, wherein the reinforcement profiles have a mutual distance such that the mutual distance between the axis of rotation of wheels in a wheel set of the concrete floor leveling device is unequal to the mutual distance between the reinforcement profiles or a multiple thereof; - pouring concrete to form the concrete floor; and - leveling the just poured concrete floor with the concrete floor leveling device in a direction of movement transverse to the reinforcement profiles.

In yet another aspect, the invention provides a concrete floor according to the above-mentioned system and / or manufactured by the above-mentioned method.

BRIEF DESCRIPTION OF THE DRAWINGS

Further features and advantages of the inventions will become apparent from the description below by means of non-limiting and non-exclusive exemplary embodiments. The exemplary embodiments of the invention are described with reference to the accompanying drawings, in which like or like reference symbols refer to like, like or similar parts, and in which Figure 1 shows a side view of the concrete floor leveling device according to the invention; Figure 2 shows a rear view of the concrete floor leveling device of Figure 1; and figure 3 shows a schematic representation of a wheel set from a concrete floor leveling device.

DETAILED DESCRIPTION OF EMBODIMENTS

A concrete floor leveling device 1 is shown in Figures 1 and 2, and consists of a knife carriage 100 and a tractor carriage 200 for propulsion and control of the leveling device in the, during use, direction of movement R. Both carriages 100, 200 are coupled by means of a coupling 300 which makes pivoting about a vertical axis possible, whereby the leveling device is very manoeuvrable. The coupling also allows torsion about a longitudinal axis of the leveling device, but prevents kinking about an axis transverse to this longitudinal axis.

The knife carriage 100 consists of a knife carriage frame 150 which is provided with two wheel sets 110, 120 on the right and left sides of the knife carriage, respectively, as viewed in the direction of movement R. At the rear of the knife carriage, as seen in the direction of movement R, the knife carriage frame is provided with a knife frame 160 with an equalizing knife 10 on the underside thereof. The knife frame 160 can be moved up and down with respect to the knife carriage frame 150 by means of hydraulic cylinders 170 mounted on the knife carriage frame 150. The hydraulic cylinders are powered via hydraulic lines 175 by a hydraulic control 270 on the tractor 200.

Measuring sensors 180 are furthermore attached to the knife frame 160 with which a height of the knife frame and hence of the leveling knife 10 can be determined. To this end, a laser device is arranged in the space in which a concrete floor is laid and a laser beam is rotated from this device through the space in such a way that this laser beam defines a plane parallel to the surface of the concrete floor to be leveled. This laser beam is detected with the measurement sensors, and with it the reference plane that is determined by the rotating laser beam. A change in height of the knife frame 150 and thus the leveling knife 10 can thereby be detected, and be supplied by means of a signal line 185 to a control device 280 on the tractor 200.

This control device controls the hydraulic control, with which the cylinders 170 are adjusted to height in order to bring and keep the leveling knife 10 or the defined height. The left and right sides of the knife frame each have their own cylinder 170 and measuring sensor 180, whereby the height of the leveling knife 10 can be kept at the defined height regardless of the position of the frame 150.

In the figures 1 and 2 the defined height of the leveling knife 10 is indicated by A1. This is also the height of the upper surface of the leveled concrete floor A and corresponds to the height position of the underside of the leveling knife 10.

The concrete floor A is a just poured concrete floor with reinforcement profiles in the form of a braid of reinforcing bars B that are perpendicular to each other. The reinforcement profiles have a mutual distance d2, as indicated in figure 3. If the concrete floor has just been poured, the concrete is still liquid or viscous, so that the concrete floor can be leveled using the leveling device 1. To this end, the leveling device is moved over the concrete floor A in the direction of movement R. The leveling knife 10 is kept at the height A1 and an excess of concrete is pushed by the leveling knife in the direction of travel R. A smooth, even surface of the concrete floor results behind the leveling knife. In a post-processing, a concrete floor is then generally finished with the help of so-called butterfly machines before the concrete is fully cured.

Because the concrete is still liquid or viscous, the wheels 210 of the tractor wagon 200 and also the wheels 111, 112, 211, 212 of the knife wagon will not so much drive over, but through the concrete floor. The wheels will rest on the reinforcement profiles B, the upper sides of which define a reinforcement plane B1. The wheels will therefore undergo an up and down movement on and below this reinforcement surface B1 due to the mutual distance of the reinforcement profiles. In order to greatly limit this up-and-down movement of the wheels of the knife carriage 100, and therefore of the knife frame 150, the knife carriage is provided with two wheel sets with two wheels each. These two wheels in each wheel set each have their own axis of rotation transverse to the direction of movement and parallel to the surface to be leveled. This is schematically shown in more detail in Figure 3 for the right-hand set of wheels 110, but similarly also applies to the left-hand set of wheels 120.

The axes 111.1 and 112.1 of the wheels 111 and 112 respectively in the wheel set 110 are shifted over a distance d1 in a direction transverse to the axis of rotation and parallel to the direction of movement and a longitudinal axis of the concrete leveling device 1. Figure 3 shows that axis 111.1 of the wheel 111 is directly above a reinforcement profile B. The distance to the next reinforcement profile is a distance d2. The undersides of the wheels now touch a virtual plane B1 which also runs over the tops of the reinforcement profiles B. If the wheels now move further in the direction R, the wheels 111, 112 will move downwards until the wheel 112 comes into contact with the next reinforcement profile. The two wheels, and therefore the frame 150, will then move upwards again. The underside of wheel 111 follows the curve P1 in Figure 3. If wheel 112 were absent, wheel 111, and thus the knife frame, would follow the much deeper curve P2. The frame 150 would then undergo a much greater up and down movement than in the described embodiment with two wheels per wheel set. In practice, the PI curve will be even less deep and smoother due to the influence of the somewhat viscous effect of the liquid concrete floor. The construction of the knife carriage 100 is such that when the profile PI is followed by the undersides of the wheels, these wheels still touch a virtual flat surface that runs (almost) parallel to the surface B1. The distance d1 between the wheels is selected in the embodiment shown in accordance with the distance d2 between the reinforcement profiles, namely as half the distance d2. The distance d1 is therefore a fraction of the distance d2, this fraction being given by one divided by the number of wheels, in this exemplary embodiment two wheels.

In an alternative embodiment, a wheel set can be provided with three (or even more) wheels, the axles of which have a mutual distance d1 equal to (approximately) a third of the distance d2. The variation in height of the wheels and hence of the frame 150 can thus be further limited.

In yet another alternative embodiment, the distance d1 between the wheel rotation axes in a wheel set is adjustable in accordance with the distance d2 between the reinforcement profiles B and with the number of wheels in a wheel set, as explained above. According to yet another embodiment, the distance d1 between the wheel rotation axes is the above-mentioned fraction plus a whole number of times the distance d2 between the reinforcement profiles, as long as the distance between the rotation axes of wheels in a wheel set does not become too great. The knife carriage could then deform or tilt when moving over the reinforcement profiles, which does not benefit the accuracy of the height adjustment of the leveling knife.

It is also possible to choose the distance d2 between the reinforcement profiles in accordance with the distance d1 between the wheel rotation axes and the number of wheels in a wheel set in a corresponding method for laying and leveling a concrete floor.

The wheels 111, 112, 121, 122 in the wheel sets 110, 120 are narrow. In the exemplary embodiment shown, the width of these wheels is 1 cm. The width is preferably in the range of 0.5 to 3 centimeters. The furrows or tracks pulled through the wheels in the still liquid or viscous concrete will therefore be narrow and will easily close. According to the embodiment shown, the wheels are made of aluminum, in particular of a cut aluminum plate. However, wheels from other metals or from a plastic are also possible. The wheels are suspended in a wheel suspension rigidly connected to the knife carriage frame 150. The diameter of the wheels is preferably chosen to be as large as possible, so that the up and down movement of the wheels and hence of the knife carriage is further limited. A larger wheel diameter gives a profile P1, as shown in figure 3, with a smaller amplitude height. In the embodiment shown, a wheel diameter of 60 cm has been selected.

The knife carriage 100 has a knife carriage frame 150 which is constructed from a truss of aluminum profiles or tubes to keep this frame and therefore the knife carriage as light as possible. Such frames are also known as truss aluminum or truss system. On this knife carriage frame, the hydraulic cylinders 170 are mounted vertically on the left and right sides of the frame 150. The knife frame 160 is coupled to piston rods of the cylinder. The piston rods are connected to the bottom and top of a piston respectively. The piston is mounted in a hydraulic cylinder, and divides this cylinder 170 into two chambers. Pressures in these two chambers can be separately controlled via the hydraulic lines 175 for accurately moving the knife frame 160 up and down. The leveling knife 10 is attached to the knife frame 160 on the underside. On either side of the knife frame 160, measuring sensors 180 are mounted on either side for determining the height of the knife frame and thus the leveling knife 10 as described above.

The signal lines 185 and hydraulic lines 175 extend to the tractor wagon 200 which is coupled to the front side of the knife wagon 100 by means of the coupling 300. The hydraulic control 270 and the control 280 are mounted on the tractor truck. The weight thereof is thus present on the tractor wagon and not on the knife wagon, which is thus again kept as light as possible. Furthermore, an actuator or motor is provided on the tractor wagon for driving the wheels 210 of the tractor wagon, for example a hydraulic actuator, and also an energy supply in the form of, for example, an electric battery for supplying the various components with an electrical supply. The truck has at least one wheel on each side, and possibly more than one wheel to distribute the weight. These wheels 210 of the tractor vehicle are provided with wide pneumatic tires or vulcanized tires to bear the weight. Vulcanized tires are often preferred because they cannot puncture.

The control 280 determines a height difference from the defined height and the measured height. This difference is entered into a PID controller in the control 280, which then controls the hydraulic control to pressurize the cylinder chambers of the cylinders. By selecting values for the proportional, integrating and differentiating parameters in the PID controller, a very accurate and smooth height adjustment of the equalizing knife 10 is obtained.

The coupling 300 and the described shape of the concrete leveling device 1 makes this leveling device very manoeuvrable. The wheels of the knife carriage 100 lie substantially on a single (virtual) axle line, and the wheels of the tractor carriage also lie on a single (virtual) axle line. The coupling 300 is designed such that it prevents buckling of the leveling device about a horizontal axis transversely of a longitudinal axis of the tractor wagon and knife carriage, and allows pivoting about a vertical axis and torsion about the longitudinal axis. For this purpose this coupling comprises two coupling rods 310, 320 which are perpendicular to each other and which run horizontally and are each connected to both the knife carriage and the tractor carriage, as Figure 1 shows. A first coupling rod 310 is rigidly connected with a first end 311 to the tractor wagon or the knife wagon and connected to the second end 312 by means of a ball connection with the other of the knife wagon and tractor wagon. The second coupling rod 320 is connected at both ends 321, 322 by means of a ball connection to the knife carriage and the tractor carriage. In addition, a hydraulic steering cylinder (not shown) is arranged between tractor wagon and knife wagon, this steering cylinder being arranged offset in the horizontal direction relative to the two coupling rods. At both ends, the steering cylinder is connected to the knife carriage and tractor carriage by means of a ball joint. The assembly of the knife wagon and tractor wagon is controlled by energizing the steering cylinder.

The knife carriage 100 and the tractor carriage 200 are rigidly connected in another embodiment, together forming a combined knife carriage and tractor carriage. In such an embodiment, the front wheels can be pivotal in order to be able to control the leveling device.

Claims (21)

  1. A system of a concrete floor (A) and a concrete floor leveling device (1), wherein the concrete floor comprises - a floor reinforcement with reinforcement profiles, wherein the reinforcement profiles are spaced apart (d2); and - concrete or liquid or viscous concrete poured over the floor reinforcement, and the concrete floor leveling device comprises - a knife carriage (100) suitable for being moved in a direction of movement (R) over the concrete floor (A) during use so that the still liquid or viscous concrete behind the knife carriage is leveled by the concrete leveling device; and - a leveling knife (10) coupled to the knife carriage (100) such that during use the leveling knife is held at a defined height (A1) on the concrete floor (A) whereby the concrete floor is leveled by the leveling knife, wherein the knife carriage (100) is provided with at least one wheel set (110) which each bear an associated part of the knife carriage, which wheel set comprises at least two wheels (111, 112), each with its own axis of rotation (111.1, 112.1), which axis of rotation are displaced relative to each other by a mutual distance (d1) in a direction transverse to the axis of rotation and parallel to the direction of movement of the concrete equalizing device, the mutual distance (d1) between the axis of rotation being unequal to the mutual distance ( d2) between the reinforcement profiles or a plurality thereof, such that undersides of the wheels touch a virtual flat surface parallel to the direction of movement and the axis of rotation and at least one of the who in the wheel set is not based on a reinforcement profile if a rotation axis of another wheel in the wheel set is directly above a reinforcement profile.
  2. A concrete floor leveling device (1) for use in the system according to claim 1, wherein the concrete floor leveling device comprises - a knife carriage (100) adapted to be moved over the concrete floor (A) during use in a direction of movement (R) so that the still liquid or viscous concrete behind the knife carriage is leveled by the concrete leveling device; and - a leveling knife (10) coupled to the knife carriage (100) such that during use the leveling knife is held at a defined height (A1) on the concrete floor (A) whereby the concrete floor is leveled by the leveling knife, wherein the knife carriage (100) is provided with at least one wheel set (110) which each bear an associated part of the knife carriage, which wheel set comprises at least two wheels (111, 112), each with its own axis of rotation (111.1, 112.1), which axis of rotation are displaced relative to each other by a mutual distance (d1) in a direction transverse to the axis of rotation and parallel to the direction of movement of the concrete equalizing device, the mutual distance (d1) between the axis of rotation being unequal to the mutual distance ( d2) between the reinforcement profiles or a plurality thereof, such that undersides of the wheels touch a virtual flat surface parallel to the direction of movement and the axis of rotation and at least one of the who in the wheel set is not based on a reinforcement profile if a rotation axis of another wheel in the wheel set is directly above a reinforcement profile.
  3. The concrete floor leveling device according to claim 1 or 2, wherein the knife carriage (100) is provided with two wheel sets (110, 120), a first wheel set (110) associated with a right-hand side and a second wheel set (120) associated with a left-hand side of the knife carriage as seen with regard to the direction of movement (R).
  4. The concrete floor leveling device according to claim 1, 2 or 3, wherein the mutual distance (dl) over which the rotation axes (111.1, 112.2) of the wheels in a wheel set (110) are shifted relative to each other corresponds to a fraction of a distance (d2) between reinforcement profiles (B) in the concrete floor (A), or this fraction plus one or more times the distance (d2) between the reinforcement profiles.
  5. The concrete floor leveling device according to claim 4, wherein the fraction is determined by one divided by the number of wheels in the wheel set.
  6. The concrete floor leveling device according to one or more of the preceding claims, wherein the distance (dl) between the rotation axes of the wheels in the wheel set is adjustable.
  7. The concrete floor leveling device according to one or more of the preceding claims, wherein the rotation axes are rigidly connected to the knife carriage (100).
  8. The concrete floor leveling device according to one or more of the preceding claims, wherein the wheels (111, 112) have a width between 0.5 and 3 centimeters.
  9. The concrete floor leveling device according to one or more of the preceding claims, wherein the wheels (111, 112) are formed from metal discs, preferably from aluminum.
  10. A concrete floor leveling device comprising - a knife carriage (100) adapted to be moved over the concrete floor (A) during use in a direction of movement (R) so that the still liquid or viscous concrete behind the knife carriage is leveled by the concrete leveling device; and - a leveling knife (10) coupled to the knife carriage (100) such that during use the leveling knife is held at a defined height (A1) on the concrete floor (A), whereby the concrete floor is leveled by the leveling knife.
  11. The concrete floor leveling device according to one or more of the preceding claims, wherein the knife carriage (100) comprises a knife carriage frame (150) to which the leveling knife (10) is coupled, which knife carriage frame is made up of a framework of tubes and / or profiles made of aluminum, in an embodiment from truss aluminum.
  12. The concrete floor leveling device according to one or more of the preceding claims, wherein the leveling knife (10), viewed in the direction of movement (R), is coupled to the knife carriage (100) on a rear side of the concrete leveling device (1).
  13. The concrete floor leveling device according to one or more of the preceding claims, wherein the leveling knife (10) is coupled to the knife carriage (100) by means of at least one hydraulic cylinder (170) with which the defined height (A1) of the leveling knife can be set.
  14. The concrete floor leveling device according to claim 13, wherein a left and right side of the leveling knife (10) are provided with its own associated hydraulic cylinder (170).
  15. The concrete floor leveling device according to claim 13 or 14, wherein the concrete leveling device comprises a hydraulic control device (270) which is adapted to control a defined height (a1) of the leveling knife (10) with a PID control of a pressure in the hydraulic cylinder (s) (170).
  16. The concrete floor leveling device according to one or more of the preceding claims, wherein the leveling knife (10) is coupled to a measuring device (180) for determining a height of the leveling knife (10) with the aid of a laser measuring device.
  17. The concrete floor leveling device according to one or more of the preceding claims, wherein the concrete floor leveling device comprises a tractor carriage (200), which is coupled to the knife carriage (100) and arranged for advancing the concrete floor leveling device in the direction of movement (R).
  18. The concrete floor leveling device according to claim 17 and one or more of claims 13 to 15, wherein a hydraulic system (270) for controlling the hydraulic cylinder (s) (170) is mounted on the tractor truck (200).
  19. The concrete floor leveling device according to claim 17 or 18, wherein the tractor carriage (200) and the knife carriage (100) are mutually coupled to a coupling device (300) which comprises a first and a second coupling rod (310, 320), which coupling rods are substantially horizontal and are arranged one above the other, the first coupling rod being rigidly connected at one end (311) to one of the knife carriage and tractor carriage and at a second end (312) by means of a ball connection with the other of the knife carriage and tractor carriage and wherein the second coupling rod (320) is connected at both ends (321, 322) by means of a ball connection to the knife carriage and the tractor carriage.
  20. Method for laying a concrete floor (A) from the system of claim 1 and / or with the aid of a concrete floor leveling device (1) according to one or more of the preceding claims, comprising - applying a floor reinforcement with reinforcement profiles (B) , wherein the reinforcement profiles have a mutual distance (d2) such that the mutual distance (d1) between the axis of rotation (111.1, 112.2) of wheels (111, 112) in a wheel set (110) of the concrete floor equalizer is unequal to the mutual distance (d2) between the reinforcement profiles or a multiple thereof; - pouring concrete to form the concrete floor; and - leveling the just poured concrete floor with the concrete floor leveling device in a direction of movement transverse to the reinforcement profiles.
  21. Concrete floor (A) according to the system of claim 1 and / or manufactured with the method according to claim X.
NL2011045A 2013-06-27 2013-06-27 System of concrete floor and concrete floor regulating device, corresponding concrete floor regulating device, according method and concrete floor. NL2011045C2 (en)

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Application Number Priority Date Filing Date Title
NL2011045A NL2011045C2 (en) 2013-06-27 2013-06-27 System of concrete floor and concrete floor regulating device, corresponding concrete floor regulating device, according method and concrete floor.
NL2011045 2013-06-27

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NL2011045A NL2011045C2 (en) 2013-06-27 2013-06-27 System of concrete floor and concrete floor regulating device, corresponding concrete floor regulating device, according method and concrete floor.
EP14173570.4A EP2853638A3 (en) 2013-06-27 2014-06-24 System of concrete floor and concrete floor levelling device, corresponding concrete floor levelling device, corresponding method and concrete floor

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019568A1 (en) * 1997-10-15 1999-04-22 Munoz Armando G Apparatus and method for preparing a site and finishing poured concrete

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
EP1325993A1 (en) * 2002-01-07 2003-07-09 Thomas Cincis Screeding apparatus and method of screeding
CA2574955C (en) * 2004-07-26 2011-05-10 Somero Enterprises, Inc. Powered strike-off plow

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019568A1 (en) * 1997-10-15 1999-04-22 Munoz Armando G Apparatus and method for preparing a site and finishing poured concrete

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