JP5393314B2 - Floor smoothing device - Google Patents

Description

  The present invention relates to a technique for smoothing the surface of concrete or mortar placed on a floor portion in a construction site of a concrete floor such as a construction or various structures.

  When constructing concrete floors such as buildings and various structures, conventionally, the ready-mixed concrete that has been transported to the floor of the construction site is uniformly leveled, leveled, and left for several hours to harden. After that, the floor surface is uniformly pressed and flattened using a device called “trowell”, and then a skilled worker performs final finishing manually by using a finishing rod. This is done using a passenger-type trowell.

  However, since it is difficult to make the concrete surface completely flat in the leveling operation of the floor surface, the concrete surface before the start of leveling operation by Trowell is uneven (about ± 5 to 8 mm) The actual condition is that the concavo-convex part) remains. The unevenness of the concrete surface cannot be eliminated by the subsequent leveling work by Trowell and the final finishing work by finishing dredge, so it will remain on the floor surface after the completion of construction, improving the quality of the floor surface. It is a hindrance.

  On the other hand, hand-guide type vibration rollers are widely known as machines used for compacting road surfaces at road construction sites (see, for example, Patent Document 1). Further, as a machine used for flattening the surfaces of a plurality of interlocking blocks laid on a sidewalk, for example, a compact block forming machine “block plate” of Mikasa Sangyo Co., Ltd. shown in FIG. 6 is known. ing.

  As shown in FIG. 6, the compacting and finishing machine 60 includes a plurality of rubber rollers 61 whose outer peripheral surfaces are made of hard rubber, a main body frame 62 that rotatably holds these rubber rollers 61, Are provided with a prime mover 63 and a vibration generator 64, and an operation handle 65. When the prime mover 63 is operated, the vibration generator 64 driven thereby generates vibration, and this vibration is transmitted to the plurality of rubber rollers 61 via the main body frame 62. Bring the compacting press finishing machine 60 onto multiple blocks laid on a park or sidewalk, and the operator holds the operation handle 65 with the prime mover 63 activated, and the entire compacting press finishing machine 60 moves forward or backward. By doing so, it is possible to finish the surface of the plurality of blocks so as to form substantially the same surface by the vibration of the plurality of rubber rollers 61.

JP 2005-307475 A

  The vibrating roller described in Patent Document 1 is a work machine suitable for the work of compacting a hard road surface, but when it is brought on a concrete floor surface in a semi-dry state, the roller dents the concrete floor surface. However, since it sinks in a short time, it cannot be used. That is, this vibration roller can be used on a hard road surface, but cannot be used in a place where an operator's footprint may be attached, such as a semi-dry concrete floor surface.

  Further, the compaction finishing machine 60 of Mikasa Sangyo Co., Ltd. shown in FIG. 6 is intended to move while giving vibration to a plurality of blocks laid at the construction site and finish the surface flat. Therefore, it is suitable for pressure work such as a hard block that is not likely to be deformed by pressure or vibration applied through the rubber roller 61 of the pressure molding finishing machine 60. However, when this compaction forming finisher 60 is brought onto a semi-dry concrete floor, it sinks in a short time as in the case of the vibration roller described above, and the work becomes impossible.

  The problem to be solved by the present invention is to smooth the floor surface, which can eliminate the unevenness of the semi-dry concrete surface and can be easily smoothed, and can also prevent the occurrence of cracks after the concrete is solidified To provide an apparatus.

The floor surface smoothing device of the present invention is a device for smoothing a semi-dry concrete floor surface, and a plurality of pressure rollers arranged in a state in which axes are parallel to each other on the same virtual plane. A holding member that rotatably holds both end portions of the plurality of pressure rollers, a vibration member that is connected to the holding member to transmit vibration to the plurality of pressure rollers, and vibrates the vibration member. and a oscillating means attached to said vibration member in order to,
The oscillating means has a function of vibrating the vibrating member at a natural frequency of the vibrating member .

  When the floor smoothing device of the present invention is brought onto a semi-dry concrete floor which is the object of smoothing work and the vibration member is operated to give vibration to the vibration member, the vibration member resonates and vibrates vigorously. At the same time, this vibration is transmitted to the pressure roller via the holding member, and each pressure roller vibrates violently. When the operator applies a force in a direction orthogonal to the axis of the pressure roller to the floor surface smoothing device in which the pressure roller is in a vibrating state, the floor surface smoothing device does not sink. Move easily.

  In this way, if the operator applies a horizontal force to the floor smoothing device in which the vibrating member is in a vibrating state and moves the entire device in the rolling direction of the pressure roller, Due to the intense vibration and pressure action of the plurality of pressure rollers passing while rolling, the unevenness of the semi-dried concrete floor is leveled and a smooth state without irregularities or steps is obtained. Moreover, since the semi-dry concrete is strongly compacted by the vibration and pressure action of the plurality of pressure rollers, it is possible to prevent the occurrence of cracks after the concrete is solidified.

The number of the pressure rollers is not particularly limited, and can be arbitrarily set according to the construction conditions. However, in consideration of workability, operability, transportability, storage property, etc., about 3 to 5 are available. Is preferred. In the case of two pressure rollers, the rolling is performed while moving up and down along the unevenness and level difference of the concrete floor surface, so that unevenness cannot be eliminated and the floor surface smoothing action is significantly reduced, In the case of 6 or more, the floor smoothing action is improved, but the disadvantage of increasing the size of the apparatus is increased, so the above range is preferable. The oscillation means is not particularly limited as long as it can resonate the vibration member. However, the oscillation means needs to have a function of vibrating (resonating) the vibration member at the natural frequency of the vibration member. It is .

  Here, it is also possible to provide a finishing rod that slidably contacts the floor surface after the pressure roller has passed through rolling. With such a configuration, the concrete floor surface where unevenness has been eliminated by rolling of the pressure roller is smoothed by the sliding motion of the finishing rod that slides on the concrete floor surface, so that the finishing level is further improved. be able to.

  In addition, it is possible to provide a brush that slidably contacts at least one of the floor surface before the pressure roller rolls or the floor surface after the pressure roller rolls. With such a configuration, the unevenness of the concrete floor, which is difficult to be solved only by the vibration and pressure action of the plurality of rolling pressure rollers, for example, the footprint of the operator can be erased by sliding the brush. Therefore, it is effective for improving the quality of the concrete floor surface.

  Furthermore, at least one outer peripheral surface of the plurality of pressure rollers may be formed of a water permeable member. Here, as the water-permeable member, a net material, a lattice material, a perforated plate, or the like can be used.

  If it is set as such a structure, the effect | action which eliminates the unevenness | corrugation of a concrete floor surface can be heightened by the pressure roller by which the outer peripheral surface was formed with the water-permeable member. In addition, since the pressure roller whose outer peripheral surface is formed of a water-permeable member has a large friction against the concrete floor surface in a semi-dry state, if a rotation driving means for the pressure roller is provided, the floor surface smoothing device is automatically installed. It can also be run.

  Here, it is desirable that the pressure contact pressure of the pressure roller with respect to the floor surface to be smoothed is 0.2 kg to 0.4 kg per 1 cm in the axial direction of the pressure roller. With such a configuration, an excellent floor surface smoothing action can be obtained without deteriorating the operability of the floor surface smoothing device. When the ground pressure is less than 0.2 kg / cm, the vibration pressure on the concrete floor surface is weakened, and the action of eliminating unevenness is reduced. When the pressure exceeds 0.4 kg / cm, the pressure roller is greatly rolled. The above-mentioned range is preferable because force is required and operability is deteriorated.

  Since the size of the pressure roller is not limited, it can be set in consideration of the transportability, the floor area of the construction site, the handleability, or the storage property. About 700 mm to 2000 mm and an outer diameter of about 50 mm to 200 mm are suitable. If the floor area of the construction site is large and there is no problem in handling and operability, it is possible to improve work efficiency by using a pressure roller having a length exceeding 2000 mm.

  According to the present invention, it is possible to provide a floor surface smoothing device which can easily smooth and eliminate unevenness of a semi-dried concrete surface, and can also prevent cracking after the concrete is solidified. it can.

It is the perspective view which looked at the floor surface smoothing apparatus which is embodiment of this invention from the front diagonal direction. It is the perspective view which looked at the floor surface smoothing apparatus shown in FIG. 1 from the back diagonal direction. It is a perspective view which shows the arrangement | sequence state of the pressure roller which comprises the floor surface smoothing apparatus shown in FIG. It is a side view which abbreviate | omits and shows a part of floor surface smoothing apparatus shown in FIG. It is a schematic front view which shows the vibration mechanism of the floor surface smoothing apparatus shown in FIG. It is a perspective view which shows the conventional compacting press finishing machine.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1 to FIG. 3, the floor surface smoothing device 10 of the present embodiment has three axial centers 11 c, 12 c, and 13 c arranged so as to be parallel to each other on the same virtual plane P. Vibration is applied to the pressure rollers 11, 12, 13, the holding member 14 that rotatably holds both ends of the three pressure rollers 11, 12, and 13, and the three pressure rollers 11, 12, and 13. A flat plate-like vibrating member 15 connected to the holding member 14 for transmission, an oscillating means 16 provided on the vibrating member 15 to give the vibration member 15 its natural vibration, and pressure rollers 11 to 13 roll. A flat finishing rod 17 that slidably contacts the floor surface after passing, a brush 18 that slidably contacts the floor surface before the pressure rollers 11 to 13 roll, and the vibration member 15. And an operation handle 19 attached to the upper surface of .

  The operation handle 19 includes a horizontal portion 19h that is gripped by the operator, a connecting portion 19a that extends from the left and right of the horizontal portion 19h toward the vibration member 15, and a horizontal reinforcing portion 19b that connects the connecting portions 19a. The front end portion of the connecting portion 19a is detachably attached to an L-shaped connecting member 29 formed by In the floor smoothing device 10 of the present embodiment, the direction in which the finishing rod 17 is attached is referred to as the front (or front), and the direction in which the brush 18 is attached is referred to as the rear (or back). Up and down and left and right are displayed behind the handle 19 with reference to an operator standing in a posture facing the vibration member 15.

  As shown in FIG. 3, the pressure rollers 11, 12, and 13 are cylindrical members having the same size and formed of a metal having a smooth outer peripheral surface, and all have a diameter D of 120 mm and a length L of 1250 mm. The arrangement interval S of the pressure rollers 11, 12, 13 is 175 mm. The weight of the floor surface smoothing device 10 as a whole is about 100 kg. When the ground pressure of the pressure rollers 11, 12, 13 with respect to the floor surface to be smoothed is calculated, the axis 11c of the pressure rollers 11, 12, 13 is calculated. , 12c, 13c, the length is about 0.27 kg per 1 cm. In addition, the said numerical value regarding the floor surface smoothing apparatus 10 is an example, Comprising: It does not limit to these. In addition, when the ground contact pressure per 1 cm length in the axial direction of the rubber roller 61 constituting the press forming machine 60 shown in FIG. 6 was calculated, a result of about 0.71 kg was obtained.

  As shown in FIG. 5, the pressure rollers 11, 12, and 13 constitute a holding member 14 via support shafts 11 s, 12 s, 13 s and bearings 11 a, 12 a, 13 a that protrude from both left and right ends. Each of the left and right side portions 14a is rotatably attached. The holding member 14 is a substantially U-shaped member in plan view formed by the pair of left and right side members 14s described above and a front member 14f that connects the front ends of the side portions 14a. The left and right side members 14s are arranged in a direction perpendicular to the shaft centers 11c, 12c, 13c of the pressure rollers 11, 12, 13 so that the front member 14f is parallel to the shaft centers 11c, 12c, 13c. Has been placed. Both the front member 14f and the side member 14s are formed of an angle member having an L-shaped cross section. And the elongate brush 18 is attached to the position which connects the rear-end parts of the side material 14s so that attachment or detachment is possible.

  The oscillating means 16 includes a prime mover 16e, a vibration generator 16b, and a belt 16v that transmits the rotational force of the prime mover 16e to the vibration generator 16b. Vibration is generated by rotating an eccentric rotating body (not shown) built in the vibration generator 16b by driving the prime mover 16e. A throttle lever 16t for increasing or decreasing the output speed of the prime mover 16e is attached to the operation handle 19, and the vibration output of the vibration generator 16b can be adjusted by operating the throttle lever 16t. The vibration member 15 is formed of a metal plate having a thickness of about 2 to 5 mm having a substantially U-shaped cross section in the front-rear direction (the rolling direction of the pressure rollers 11, 12, 13), and vibration generated by the oscillation means 16. Therefore, the vibration member 15 has a material and a shape that easily resonate.

  A reinforcing member 21 having an L-shaped cross section is attached in front of the front member 14f of the holding member 14 via a plurality of hinges 20 in parallel with the front member 14f, and the finishing rod 17 is detachable along the reinforcing member 21. It is attached. The finishing rod 17 is rotatable up and down around the hinge 20 together with the reinforcing member 21, and the front member 14 f of the holding member 14 and the reinforcing member 21 are connected by an inverted V-shaped link mechanism 23. A proximal end portion of the operation wire 25 whose distal end portion is locked to the link mechanism 23 is locked to an operation rod 24 provided on the operation handle 19.

  When the operating rod 24 is moved back and forth along the cylinder 24 s, the operating wire 25 is pulled or loosened, whereby the finishing rod 17 is rotated up and down around the hinge 20. In this embodiment, as shown in FIG. 1, when the operating rod 24 is positioned in front of the cylinder 24s, the finishing rod 17 is lowered so as to come into contact with the floor surface. As shown in FIG. When the base end of the operating rod 24 is fitted into the bay-shaped portion 24b of the cylinder 24s by pulling it backward along the cylinder 24s, the finish rod 17 is raised until it is separated from the floor surface. Locked.

  A pair of support posts 26 erected on the left and right sides of the reinforcing member 21 are provided with a flange-like stopper 27 and a buffer material 28, and a weight 22 is detachably attached to the upper surface side of the buffer material 28. These weights 22 are for pressing the finishing rods 17 toward the floor surface, and adjusting the pressing force of the finishing rods 17 against the floor surface by changing the type and number of the weights 22. Can do. Since the finishing rod 17 is formed of an elastically deformable metal plate, the finishing rod 17 can press the floor surface elastically according to the weight of the weight 22.

  As shown in FIG. 4, the floor smoothing device 10 is brought on the semi-dry concrete floor F1 to be smoothed, the oscillation means 16 is operated, and the throttle lever 16t (see FIG. 1) is adjusted. When the vibration member 15 is imparted with its natural vibration, the vibration member 15 is resonated and vibrates vigorously. This vibration is generated from the left and right side members 14s of the holding member 14 to the bearings 11a, 12a, 13a and the support shafts 11s, 12s. , 13s to the pressure rollers 11, 12, and 13.

  As a result, each of the pressure rollers 11, 12, and 13 also vibrates vigorously, but the floor smoothing device 10 is held without sinking to the concrete floor surface F1, so that the operator holds the operation handle 19 on the operation handle 19. When a pulling force in the direction of the arrow R is applied, the pressure rollers 11, 12, 13 are moved in the rotational direction (directions orthogonal to the axes 11c, 12c, 13c of the pressure rollers 11, 12, 13). If the throttle lever 16t is operated to increase or decrease the rotational speed of the prime mover 16e, the vibration member 15 is vibrated vigorously (the set position of the throttle lever 16t), so that the vibration member 15 is set to the natural vibration state. Is easy.

  Thus, an operator applies a force in the horizontal direction (arrow R direction) to the floor surface smoothing device 10 in which the vibration member 15 is in a natural vibration state, and the pressure rollers 11, 12, and 13 rotate in the direction of rotation. If the whole 10 is moved, as shown in FIG. 4, it is in a semi-dry state by vigorous vibration and pressure action of a plurality of pressure rollers 11, 12, and 13 that sequentially roll over the concrete floor F1. The unevenness of the concrete floor F1 can be eliminated and smoothed easily. In addition, since the semi-dry concrete FC is strongly compacted by the vibration pressure action of the plurality of pressure rollers 11, 12, 13, cracks after the concrete is solidified can be prevented.

  The floor smoothing device 10 includes three pressure rollers 11, 12, and 13. However, the number of pressure rollers is not particularly limited, and can be arbitrarily set according to construction conditions. In consideration of the performance, operability, transportability, storage property, etc., about 3 to 5 is preferable.

  Further, in the floor surface smoothing device 10, the ground pressure of the pressure rollers 11, 12, 13 with respect to the concrete floor surface F1 to be smoothed is 0.27 kg per 1 cm length in the direction of the axis 11c, 12c, 13c. As a result, an excellent floor surface smoothing action could be obtained without deteriorating the operability of the floor surface smoothing device 10.

  Further, the floor surface smoothing device 10 includes a finishing rod 17 that slidably contacts the concrete floor surface F2 after the pressure rollers 11, 12, and 13 have passed through rolling. Accordingly, the concrete floor F1 in which the unevenness is eliminated by the rolling of the pressure rollers 11, 12, 13 is further smoothed by the sliding operation of the finishing rod 17 that slides along the surface. The finishing level of the concrete floor surface F3 after the finishing trough 17 has passed becomes very good. As the finishing rod 17 moves in the direction of the arrow R, the concrete floor surface F2 is pressed by the pressing force of the weight 22, but the finishing rod 17 is rotatable around the hinge 20. The concrete floor F2 can be finished without being affected by the vibration or swinging of the holding member 14.

  On the other hand, since the brush 18 which is slidably in contact with the concrete floor F1 before the pressure rollers 11, 12, and 13 pass through the rolling is provided behind the holding member 14, the three rollers that roll. The unevenness of the concrete floor surface F1, which is difficult to be solved only by the vibration and pressure action of the pressure rollers 11, 12, 13 can be erased by sliding the brush 18, for example. For this reason, it is effective for quality improvement of the concrete floor surface F3 which is a finishing surface. In addition, by providing the brush 18 in front of the holding member 14 (for example, the front material 14f), the pressure roller 11, 12, 13 is slidably in contact with the concrete floor F2 after rolling. You can also Since the brush 18 can be attached to and detached from the holding member 14, it can be removed according to the work situation.

  Furthermore, if at least one outer peripheral surface of the three pressure rollers 11, 12, 13 is formed of a water permeable member (for example, a net material, a lattice material, a perforated plate, or the like), the pressure roller is a concrete. Increases the effect of eliminating unevenness on the floor. In addition, since the pressure roller whose outer peripheral surface is formed of a water-permeable member has high friction against the concrete floor surface, if a power means for rotationally driving the pressure roller is provided, the floor surface smoothing device is self-propelled. You can also

  The floor smoothing apparatus of the present invention can be widely used in construction sites for concrete floors such as constructions and various structures.

DESCRIPTION OF SYMBOLS 10 Floor surface smoothing apparatus 11, 12, 13 Pressure roller 11a, 12a, 13a Bearing 11c, 12c, 13c Axis center 11s, 12s, 13s Spindle 14 Holding material 14f Front material 14s Side material 15 Vibration member 16 Oscillating means 16b Vibration generator 16e Motor 16t Throttle lever 16v Belt 17 Finishing rod 18 Brush 19 Operation handle 19a Connecting portion 19b Horizontal reinforcing portion 19h Horizontal portion 20 Hinge 21 Reinforcing member 22 Weight 23 Link mechanism 24 Operating rod 24b Bay-shaped portion 24s Cylinder 25 Wire 26 Strut 27 Stopper 28 Buffer material 29 Connecting member 30 Damping material

Claims (5)

A device for smoothing a semi-dry concrete floor surface , wherein a plurality of pressure rollers arranged in a state in which axes are parallel to each other on the same virtual plane, and both ends of the plurality of pressure rollers A holding member that rotatably holds the respective portions, a vibration member that is connected to the holding member to transmit vibration to the plurality of pressure rollers, and an oscillation that is attached to the vibration member to vibrate the vibration member and means, the,
The floor smoothing apparatus according to claim 1, wherein the oscillating means has a function of vibrating the vibrating member at a natural frequency of the vibrating member .   The floor surface smoothing device according to claim 1, further comprising a finishing bar that slidably contacts the floor surface after the pressure roller has passed through rolling.   The floor surface according to claim 1 or 2, further comprising a brush that slidably contacts at least one of the floor surface before the pressure roller rolls and the floor surface after the pressure roller rolls. Smoothing device.   The floor surface smoothing device according to any one of claims 1 to 3, wherein an outer peripheral surface of at least one of the plurality of pressure rollers is formed of a water permeable member.   The grounding pressure of the pressure roller with respect to the floor surface to be smoothed is 0.2 kg to 0.4 kg per 1 cm length in the axial direction of the pressure roller. The floor surface smoothing apparatus in any one.

Images