JP2008215020A - Working apparatus for floor surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working apparatus capable of performing work for the purpose of giving a non-slip finish and/or a decorative finish to a floor surface of a building or a sidewalk surface by giving good workability while offering a compact, light-weight apparatus which can be produced at a low cost. <P>SOLUTION: A working apparatus 10 for giving a finish work to a surface of a floor or a sidewalk comprises a truck 12 traveling on the floor surface; a laser oscillator 34 installed to the truck 12; and an optical device capable of guiding laser light radiated from the laser oscillator 34 to the floor surface located underneath the truck 12. And at the same time with the traveling of the truck 12 on the floor surface F, an optical system 38 of the optical device oscillates about its vertical axis thereby radiating the laser light to the surface of floor or sidewalk for giving the finish work. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a floor surface processing apparatus for processing a surface of a floor surface such as a building or a sidewalk for the purpose of preventing slipping and / or decoration.

  Conventionally, Patent Document 1 proposes that a floor surface is irradiated with a laser beam to process the floor surface to prevent slipping or decoration.

  In the floor surface processing apparatus of Patent Document 1, a portable base that can be moved on the floor to be processed, a laser oscillator attached to the base, a base provided, and a laser oscillator And an optical device that guides the irradiation position of the emitted laser beam toward a floor surface disposed below the base so that the irradiation position can be adjusted in a two-dimensional manner. Move to a certain floor, irradiate the laser beam toward the floor located below the base, and form a recess to form a recess on the existing floor. It can be applied.

JP 2005-248629 A

  However, in the floor surface processing apparatus disclosed in Patent Document 1, the two-dimensional pattern is processed after being moved to the floor surface to be processed and positioned, and when the processing is completed, the next processing position is reached. The operation of moving and positioning must be repeated, and the worker frequently repeats the positioning operation and the standby during processing, so that there is a problem that workability is poor.

  In the floor surface processing apparatus disclosed in the above publication, an optical device can process an arbitrary two-dimensional pattern on the floor surface by adjusting the irradiation position two-dimensionally. In addition, there is a problem that an optical device for adjusting the irradiation position becomes complicated, the device is increased in size and weight, and the manufacturing cost is increased.

  This invention is made | formed in view of this subject, The objective is to provide the floor surface processing apparatus which can make workability | operativity favorable.

  Another object of the present invention is to provide a floor surface processing apparatus that can be reduced in size and weight and can be manufactured at low cost.

In order to achieve the above-mentioned object, the invention described in claim 1 is a carriage capable of traveling on a floor surface, a laser oscillator provided on the carriage, and a laser beam emitted from the laser oscillator below the carriage. An optical device that guides toward the floor surface of the floor surface processing device for processing the floor surface,
The carriage includes a traveling unit for self-propelling the floor surface, and the carriage self-propels on the floor surface, and at the same time the irradiation position of the laser beam is changed relative to the carriage by the optical device. Processing is performed by irradiating a laser beam.

  The invention according to claim 2 is characterized in that the irradiation position of the laser beam guided by the optical device according to claim 1 draws a swing locus in the coordinate system of the floor surface processing apparatus.

  The invention described in claim 3 is characterized in that the optical system for guiding the laser beam of the optical device described in claim 1 or 2 swings around a vertical axis.

  The invention according to claim 4 is characterized in that the traveling unit according to any one of claims 1 to 3, and the laser oscillator and the optical device can be separated.

  According to a fifth aspect of the present invention, the floor surface processing apparatus according to any one of the first to fourth aspects is provided between the floor surface and the carriage, and guide means for guiding the traveling of the carriage. It is characterized by providing.

  According to the present invention, positioning is performed in order to perform processing by irradiating the floor surface with laser light while the trolley of the apparatus is self-propelled and at the same time the irradiation position of the laser light is changed relative to the trolley by the optical device. The work does not need to be performed frequently, the processing work can be performed continuously, and workability can be improved. Even when the carriage is traveling, the irradiation position of the laser beam on the carriage is changed by the optical device, so that the floor surface can be finely processed.

  According to the second aspect of the invention, in order for the irradiation position of the laser beam to draw a swinging locus, it is only necessary to generate a motion around one axis, so that the structure of the optical device can be simplified. Can be reduced in size and weight, and can be manufactured at low cost.

  According to the third aspect of the present invention, since the optical system swings around the vertical axis, the irradiation position of the laser beam can be moved over substantially the entire width of the floor surface processing apparatus. Since the distance between the optical system and the floor surface can be made constant, the optical system can be configured with an inexpensive lens.

  According to the invention described in claim 4, since the traveling unit, the laser oscillator, and the optical device are separable, if any of them breaks down, they can be separated and repaired. .

  According to the fifth aspect of the present invention, the traveling of the carriage can be guided along the desired traveling path by the guiding means.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment, and various modifications can be made.

  FIG. 1 is an overall perspective view of a floor surface processing apparatus 10 according to an embodiment of the present invention, and FIG. 2 is a diagram showing the internal structure thereof.

  In the figure, reference numeral 12 denotes a carriage, and the carriage 12 is provided with a pair of front wheels 14 and 14 and a traveling unit 18 including a pair of rear wheels 16 and 16 for allowing the carriage 12 to self-run.

  The traveling unit 18 includes the pair of rear wheels 16 and 16 and a traveling drive motor 20, and the rotational force from the traveling drive motor 20 is transmitted to the rear axle via a gear box 21 (FIG. 3). The rear wheels 16 and 16 are driven to rotate through the clutch 22 (FIG. 3). A guide roller 17 is integrally attached to at least one of the pair of rear wheels 16, and the guide roller 17 can be engaged with a rail R installed on the floor surface F as shown in FIG. It has become. These guide rollers 17 and rails R constitute guide means.

  The carriage 12 is provided with a vertical frame 12a, and the vertical frame portion 12a is bent rearward at an upper portion thereof to form a handle portion.

  A laser irradiation unit 28 is arranged on the horizontal frame 12 b of the carriage 12. As shown in FIG. 2, the laser irradiation unit 28 mainly includes a base frame 30 that is L-shaped in a side view, a cover 32 that covers the outside of the laser irradiation unit 28, and a laser oscillator 34 that oscillates laser light. An optical device 36 for guiding the laser light from the laser oscillator 34 toward the floor surface F disposed below the carriage 12, and guide light along the laser light path between the laser oscillator 34 and the optical device 36. And a guide light oscillator 39 that emits light. The base frame 30 and the horizontal frame 12b or the vertical frame 12a are detachably coupled by a knock pin and / or a band.

The laser oscillator 34 is attached to an attachment frame 30 a fixed to the base frame 30, and laser light from the laser oscillator 34 is emitted downward through a shutter 35. As the laser oscillator 34, a CO ₂ laser, an Nd-YAG laser, an excimer laser, a semiconductor laser, a fiber laser, or the like can be used. The oscillation of the laser oscillator 34 can be either continuous oscillation or pulse oscillation. Is possible.

  The optical device 36 includes a laser light guide tube 38 that constitutes an optical system having a horizontal L-shaped laser light path, and a swing drive unit 40 that swings and drives the laser light guide tube 38.

  In the laser beam guide tube 38, mirrors M1 and M2 and a condenser lens L are arranged along the laser beam path. When laser light emitted downward from the laser oscillator 34 is introduced into the laser light guide tube 38, it is reflected by the mirror M1, travels in the horizontal direction, and then reflects by the mirror M2 in the vertical direction. Then, the light is focused on the floor surface F by the condenser lens L (shown by a one-dot chain line in FIG. 2).

  The swing drive unit 40 includes a swing center shaft 41 that supports the laser light guide tube 38, a bearing unit 42 that supports the swing center shaft 41, a swing drive motor 44 that includes a stepping motor, And a transmission mechanism 46 composed of a gear for transmitting the driving force from the driving motor 44 to the oscillation center shaft 41. By this swing driving unit 40, the laser light guide tube 38 is supported so as to be swingable around a vertical axis passing through the reflection point of the mirror M1 and the center point of the front axle.

  As shown in FIG. 3, the oscillation angle of the laser light guide tube 38 is set to an arbitrary angle (for example, an arbitrary range within a range of ± 60 degrees) within a range within the width direction of the laser irradiation unit 28. Can do.

  In the vicinity of the lens L of the laser light guide tube 38, a nozzle 50 that blows the compressed air toward the lens L is disposed so as to penetrate the laser light guide tube 38 and prevent the lens L from being soiled by processing waste. The nozzle 50 is connected to the compressor and the air tank via an electromagnetic valve.

  In addition, a dust collecting pipe 52 is disposed near the exit of the laser light guiding tube 38 so as to pass through the laser light guiding tube 38 and suck processing dust and dust from the floor surface F. The dust collecting pipe 52 is a dust collector. Connected to.

  Above the laser beam guide tube 38, a laser beam guide tube 38 and a CCD camera 54 for imaging the irradiation position are installed.

  A control box 55 on which a control panel is disposed is disposed above the traveling unit 18 of the carriage 12. A touch panel monitor 56 for performing setting operation and display and a CCD camera 54 are disposed on the control box 55 of the carriage 12. A monitor 58 is provided that reflects the image picked up in (1).

  Further, a second carriage 70 is provided separately from the carriage 12, and in the second carriage 70, a high-frequency power supply device for operating the laser oscillator 34, a DC power supply device, the compressor and air tank, a dust collector, etc. A device having a large weight or capacity is arranged. Between the second carriage 70 and the carriage 12, a flexible cable for passing a control signal such as a signal cable, a power cable or an air tube, a dust collecting tube, a power voltage signal or compressed air, and dust is routed. Is done. A cord for connecting to a commercial AC power source is separately provided from the second cart.

  The operation of the floor surface processing apparatus 10 configured as described above will be described. First, the carriage 12 and the second carriage 70 of the floor surface processing apparatus 10 are carried into the floor surface F on which an arbitrary floor material such as marble, granite, glass or the like is laid, and the rail R is installed on the floor surface F. Since the floor surface F is usually formed by aligning rectangular flooring materials, the rail R may be installed along the alignment direction of the flooring materials.

  Then, after engaging the guide roller 17 of the carriage 12 with the rail R, while confirming the image from the CCD camera 54 on the monitor 58, the swing drive motor 44 is operated to swing the laser light guide tube 38. The position of the start point and the end point (that is, the swing angle range) is determined and input to the touch panel monitor 56. Further, the traveling speed of the carriage 12 (that is, the rotational speed of the traveling drive motor), the intensity of the laser light, and the continuous light / pulse light are determined and input to the touch panel monitor 56, respectively.

  When the operation is started after the above inputs, the carriage 12 is self-propelled by the traveling drive motor 20, and at the same time, the laser beam is irradiated to the floor surface while the laser light guide tube 38 is swung left and right by the swing drive motor 44. The For this reason, the irradiation position of the laser beam draws a swing locus in the coordinate system of the apparatus.

  By this operation, as shown in FIG. 4, a depression is formed on the floor along a processing locus in which a large number of deformed arcs are connected in the traveling direction. The traveling speed can be set to, for example, 0.5 mm to 10 mm / s. FIG. 4A shows a case where the traveling speed of the carriage 12 is slow, and FIG. 4B shows a case where the traveling speed of the carriage 12 is fast. When the traveling speed changes, the pitch is a distance between adjacent deformed arcs. Therefore, the traveling speed of the carriage 12 may be determined so that the pitch of the deformed arc becomes a desired one. When the processing locus is intermittent as shown in FIG. 4C, the laser light may be pulsed light.

  As described above, in the floor surface processing apparatus 10 according to the present invention, since the apparatus 10 performs floor surface processing while traveling, the positioning operation may be performed only at the start of traveling, and the workability is excellent. Since a plurality of flooring materials can be processed continuously, even if there is a positional deviation between the floor surface processing apparatus 10 and the flooring material, compared to processing the flooring materials one by one. The shift is not noticeable.

  Moreover, since the apparatus 10 is self-propelled, it is more excellent in workability. If there are two or more floor surface processing devices 10, the positioning operation of the floor surface processing device including the installation of rails relative to other floor surface processing devices while one or more floor surface processing devices are self-propelled and processed. It is possible to work by one worker by performing, and workability is greatly improved.

  The optical device can be arbitrarily reciprocated as well as a swinging motion around the vertical axis of the laser light guide tube 38 as shown. That is, if the advancing direction of the floor surface processing apparatus is the x-axis and the vertical axis is the z-axis, the floor surface processing apparatus is allowed to perform processing with a predetermined width in the y-axis direction while proceeding to the x-axis. For example, a reciprocating motion in the y-axis direction and a rocking motion around the x-axis can be used. In any case, the reciprocating motion in one axis direction or the swinging motion around one axis can simplify the drive mechanism, thereby reducing the size and weight of the device. Among them, the swinging motion around the z-axis as shown in the figure can move the irradiation position of the laser beam as much as possible within a range substantially equal to the dimension in the y direction of the floor surface processing apparatus, so that the processing width is increased. In addition, since the distance between the optical device and the floor surface is constant, the lens L of the optical device can be an inexpensive lens, which is most preferable.

  In this embodiment, a guide means is constituted by the rail R and the guide roller 17 and the traveling is guided to the floor surface processing apparatus 10, but the present invention is not limited to this, and FIG. As shown in FIG. 5, the floor surface processing apparatus is provided with the optical sensor 80, the floor surface F or the rail R is provided with reflecting means such as a guide tape 82 along the desired traveling path, and the optical sensor 80 and the guide tape 82 Guide means can also be configured. The light is emitted downward from the optical sensor 80, the reflected light is received, and the floor is made to follow the guide tape 82 due to the difference between the reflected light amount from the guide tape 82 and the reflected light amount from the non-guide tape. The surface processing apparatus 10 is guided.

  In this embodiment, the carriage 12 mainly travels straight. However, the present invention is not limited to this, and the traveling unit 18 may be provided with a steering mechanism to perform turning / meandering other than straight traveling. Is possible. Thereby, it becomes possible to process along an arbitrary non-linear traveling path.

  In this embodiment, since the traveling unit 18 and the laser irradiation unit 28 including the laser oscillator 34 and the optical device 36 are separable, these units are separated when any unit fails. Thus, it is possible to repair only the failed unit.

1 is an overall perspective view of a floor surface processing apparatus according to an embodiment of the present invention. It is a figure showing the internal structure of the floor surface processing apparatus by embodiment of this invention. It is a top view of the floor surface processing apparatus by embodiment of this invention. It is a figure of the processing example of the floor surface processing apparatus of this invention, (a) is the case where the traveling speed of a floor surface processing apparatus is slow, (b) is the case where the traveling speed of a floor surface processing apparatus is high, (c) is a laser. This is an example in which light is pulsed light. It is an example of the guide means by embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Floor surface processing apparatus 12 Cart 17 Guide roller (guide means)
18 Traveling unit 34 Laser oscillator 36 Optical device 38 Laser light guide tube (optical system)
80 Optical sensor (guide means)
82 Guide tape (guide means)
R rail (guide means)
F Floor

Claims (5)

A carriage capable of traveling on the floor, a laser oscillator provided on the carriage, and an optical device for guiding laser light emitted from the laser oscillator toward the floor below the carriage, In floor surface processing equipment that processes the surface,
The carriage includes a traveling unit for self-propelled on the floor surface, and the carriage self-propels on the floor surface, and at the same time the irradiation position of the laser beam is changed relative to the carriage by the optical device. A floor surface processing apparatus for performing processing by irradiating a laser beam on the surface.   The floor surface processing apparatus according to claim 1, wherein the irradiation position of the laser beam guided by the optical device draws a swinging locus in a coordinate system of the floor surface processing apparatus.   3. The floor surface processing apparatus according to claim 1, wherein the optical system for guiding the laser beam of the optical apparatus swings around a vertical axis.   The floor surface processing apparatus according to any one of claims 1 to 3, wherein the traveling unit, the laser oscillator, and the optical device are separable.   The floor surface processing apparatus according to any one of claims 1 to 4, further comprising guide means provided between the floor surface and the carriage to guide the traveling of the carriage.

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