Road structure – process – or apparatus – Apparatus – Automatic control
Patent
1991-09-20
1993-03-02
Britts, Ramon S.
Road structure, process, or apparatus
Apparatus
Automatic control
404119, E01C 1922, E01C 1900
Patent
active
051903962
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a concrete leveling apparatus for performing the work of levelling a poured concrete surface when concrete floor surfaces and the like are being built.
BACKGROUND ART
When concrete floor surfaces and the like are being built, levelling the concrete to a smooth surface after it has been poured is conventionally performed manually by workers using trowels but not only is such manual work inefficient and involve much time, there are also many other problems such as a poor accuracy of leveling, and the difficulty of obtaining workers to perform it.
Because of this, efforts are being made to bring into practical application machines that automatically run across a poured concrete surface after it has been poured and before it has completely hardened and perform the leveling of the concrete.
However, such machines have wheels that run across the poured concrete and disturb the levelness of the surface and have another problem in that the weight of the machine is directly applied to the poured concrete surface and causes other problems of bending or otherwise damaging the steel reinforcement beneath the concrete surface.
DISCLOSURE OF INVENTION
The present invention is configured by a concrete leveler portion that is supported to a traveling unit that is driven by a screw and that is mounted so as to be freely movable along a traveling beam that travels along left and right rails, and that automatically performs the work of leveling the poured concrete surface without leaving any tracks in it.
In addition to this, the screw is configured by a main screw and an auxiliary screw so that surplus concrete is suitably discharged to portions of the surface that are still to be leveled.
Furthermore, a vibrator plate or a vibrator plate and trowel are provided to the screw so that leveling tracks caused by the screw are leveled out by the fine vibration.
Still furthermore, the height of the vibrator plate is automatically adjusted so that suitable leveling work is performed with respect to both horizontal or sloped surfaces.
Yet furthermore, the traveling beam has a self-operating structure that does not require the laying of rails.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a frontal elevational view describing a first embodiment of the present invention;
FIG. 2 is a side elevational view of a traveling beam;
FIG. 3 is an enlarged frontal elevational view of the leg support portion shown in FIG. 2;
FIG. 4 is an elevational view of a concrete leveler portion;
FIG. 5 is a sectional view along section lines A--A of FIG. 1;
FIG. 6 is a view of the configuration of the control system;
FIG. 7 is an enlarged elevational view of the leveler portion shown in FIG. 1;
FIG. 8 is an elevational view showing another embodiment of the trowel plate shown in FIG. 7;
FIG. 9 is a frontal elevational view of the main portions of the other embodiment;
FIG. 10 and FIG. 11 are views describing the procedure for performing the leveling work;
FIG. 12 is a frontal elevational view showing one example of the mechanism for moving the laser light receiver up and down;,
FIG. 13 is a side elevational view of the mechanism for moving the laser light receiver up and down;
FIG. 14 is a block diagram of the control system;
FIGS. 15 (A)-(D) are views describing the operation;
FIG. 16 is a frontal elevational view showing another embodiment of the present invention;
FIG. 17 is an enlarged sectional view of the leg portion shown in FIG. 16 and
FIGS. 18 (A)-(H) are views describing the operation.
BEST MODE FOR CARRYING OUT THE INVENTION
The following is a description of embodiments of the present invention with reference to the appended drawings.
The concrete leveling apparatus 1 comprises the traveling beam 2 and the concrete leveler portion 3 shown in FIG. 1, and the traveling beam 2 is provided with self-traveling drive portions 4, 4.
As shown in FIG. 1 through FIG. 3, the traveling beam 2 is configured from rails 5, 5 that are laid on both sides of the poured concrete surface C, traveling leg port
REFERENCES:
patent: 3540359 (1970-11-01), Swisher et al.
patent: 4068970 (1978-01-01), Rowe
patent: 4466757 (1984-08-01), Allen
patent: 4577994 (1986-03-01), Miller
patent: 4655633 (1987-04-01), Somero et al.
patent: 4682908 (1987-07-01), Domenighetti
patent: 4688965 (1987-08-01), Smith et al.
patent: 4758114 (1988-07-01), Artzberger
patent: 4778305 (1988-10-01), Ritchey et al.
patent: 4822210 (1989-04-01), Oury et al.
patent: 4995760 (1991-02-01), Probst et al.
Aoyagi Hayao
Kawamura Tateo
Ochiai Minoru
Okuda Kenji
Shimano Toru
Britts Ramon S.
Connolly Nancy P.
Sanwa Kizai Co., Ltd.
Takenaka Corporation
LandOfFree
Concrete leveling apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Concrete leveling apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Concrete leveling apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-123193