JP7462470B2 - Marking method - Google Patents

Description

The present invention relates to a marking method.

Conventionally, a common method of marking out a structure is to determine a reference point based on a drawing, and then use a laser marking device that projects a laser beam in both horizontal and vertical directions to mark out new structures using the projected beam as a guide (see, for example, Patent Document 1).

JP 2007-178173 A

However, in the above conventional technology, the laser beam is a temporary projection, and the laser beam disappears after the output of the laser marking device is stopped. Therefore, in order to leave a mark on the floor or wall where the laser beam was projected, it is necessary to use an ink pot to mark the area again based on the laser beam before the output of the laser marking device is stopped. Since the work of marking using the ink pot is time-consuming, there is room for improvement in terms of the efficiency of the marking work.

In view of the above, the present invention aims to provide a marking method that can improve the work efficiency of marking work.

In order to solve the above-mentioned problems and achieve the object, the marking method described in claim 1 is a marking method for marking a marking line on an object, and includes a first step of performing one of an irradiation step of irradiating marking irradiation light, which is light for marking the marking line at at least a marking position on the object where the marking line is to be marked, or an application step of applying a first substance that is altered by irradiating the marking irradiation light to an area on the object including the marking position, a second step of performing the other of the irradiation step or the application step, and a third step of generating the marking line corresponding to the altered portion of the first substance by using a second substance that acts on the first substance to remove the portion of the first substance that has been altered by the marking irradiation light.

The marking method described in claim 2 is the marking method described in claim 1, in which the first step is the irradiation step, and the second step is the application step.

The marking method described in claim 3 is the marking method described in claim 1 or 2, in which the application step applies the first substance to the object by spraying it, and the third step sprays the second substance onto the first substance.

The marking method according to claim 4 is the marking method according to any one of claims 1 to 3, in which in the irradiation step, the laser light output from a laser light output device that irradiates the object with linear laser light, or the projection light output from a projection device that projects projection light in a planar manner onto the object, is irradiated as the marking irradiation light.

The ink-out method described in claim 5 is the ink-out method described in any one of claims 1 to 4, in which the first substance is a substance consisting of multiple types of substances including at least silver halide, and the second substance is a substance corresponding to a developing and fixing solution.

According to the marking method described in claim 1, by including the steps of irradiating marking irradiation light, applying a first substance, and generating a marking line using a second substance, it is possible to omit the work of marking using a conventional ink pot, for example, thereby improving the work efficiency of the marking work.

According to the marking method described in claim 2, by performing an irradiation process in the first step and performing an application process in the second step, for example, the first substance can be applied based on the marking irradiation light irradiated on the object, so that the first substance can be applied quickly in an appropriate amount at an appropriate position, which further improves the work efficiency of the marking work and also makes it possible to suppress wasteful use of the first substance.

According to the marking method described in claim 3, the first substance is applied to the object by spraying it, and the second substance is sprayed onto the first substance, so that each substance can be easily applied or attached even in places where it is difficult for workers to perform manual work (for example, a part where a wall and a floor meet, a corner, or a curved part).

According to the marking method described in claim 4, by irradiating a laser light or a projected light as the marking irradiation light, it is possible to, for example, use a laser light to irradiate the marking position and reliably mark the marking line at the marking position, and also to use the projected light to mark the marking line at any point in a certain area.

According to the marking method described in claim 5, the first substance is a substance consisting of multiple types of substances including at least silver halide, and the second substance is a substance corresponding to a developer-fixer. For example, by using the second substance to remove a portion of the first substance other than the portion altered by the marking irradiation light, a marking line corresponding to the altered portion of the first substance can be generated, so that the marking line can be reliably applied.

FIG. 1 shows a building under construction to which marking lines are to be added. 4 is a flowchart showing a first marking method. FIG. FIG. FIG. FIG. FIG. 1 shows a portion of a floor with marking tape applied. FIG. 1 shows a portion of a floor with marking tape applied. FIG. 1 shows a portion of a floor with marking tape applied. 11 is a flowchart showing a second marking method. FIG. 1 is a side view of the interior of a building under construction with a marking device installed. FIG. 12 is an enlarged view of a portion of FIG. FIG. 1 shows a building under construction to which marking lines are to be added. FIG. 2 is a side view showing the inside of the application device.

The following describes in detail an embodiment of the marking method according to the present invention with reference to the attached drawings. First, [I] the basic concept of the embodiment is explained, then [II] the specific content of the embodiment is explained, and finally, [III] modified examples of the embodiment are explained. However, the present invention is not limited to the embodiment.

[I] Basic Concept of the Embodiment First, the basic concept of the embodiment will be described. The embodiment generally relates to a marking method.

Here, a "marking method" is a method for marking a marking line on an object. This marking method is arbitrary as long as it is a method for marking a marking line, and includes, for example, a first step, a second step, and a third step. Note that methods other than those realized by each of these steps may also be interpreted as marking methods.

An "object" is an object to which a marking line is to be attached, and is a concept that includes, for example, any part of a building that is under construction or has already been constructed, such as floors, walls, ceilings, pillars, and beams. A "marking line" is a line that serves as a reference in any work such as construction work, and in construction work, for example, the positioning of building components is performed based on the marking line.

The "first step" refers to a step in which either the irradiation step or the coating step is performed.

The "irradiation process" refers to the process of irradiating at least the marking position with marking irradiation light. The "marking position" refers to the position on the object where the marking line is to be added, and is, for example, a position determined based on the design specifications of the building (including BIM (Building Information Modeling) data). The "marking irradiation light" refers to light that is irradiated to the marking position to add the marking line, and is a concept that includes, for example, the laser light output from a laser light output device that irradiates the object with linear laser light, or the projection light output from a projection device that projects planar projection light onto the object.

"Laser light" is light that is relatively highly directional, and is a concept that includes, for example, light that is irradiated onto an object as a line of light with a certain width (for example, about 2.0 mm to 5.0 mm). Also, "projected light" is light that is irradiated over an area with a certain extent, and is a concept that includes, for example, light that is irradiated over the entirety of a certain area on an object (i.e., projected in a planar form).

The laser light output device is arbitrary, and may be, for example, a known laser marking device that outputs linear laser light (i.e., a laser beam), or any other device. The projection device is also arbitrary, and may be, for example, a known projector that projects light in a planar form, or any other device.

The "application process" refers to a process of applying a first substance to an area of an object that includes the position of the inking, and is a concept that includes, for example, a process of applying the first substance by atomizing (i.e., jetting or spraying). The first substance will be described later.

The "second step" refers to a step in which the other of the irradiation step and the coating step (i.e., the other step that is not performed in the first step) is performed.

The "third step" refers to a step of using a second substance to remove a part of the first substance that has been altered by the inking light or a part other than the part, thereby generating an inking line that corresponds to the altered part of the first substance, and is a concept that includes, for example, a step of spraying (i.e., jetting or spraying) the second substance.

The "first substance" is a substance used to generate the marking line, and more specifically, a substance that changes when irradiated with marking light, and is a concept that includes, for example, so-called photosensitive substances. Note that this first substance is arbitrary, and for example, a substance composed of one type of substance may be used as the first substance, or a substance composed of multiple types of substances may be used as the first substance (the same applies to the second substance described below). The specific contents of this first substance will be explained in the embodiment (the same applies to the second substance described below).

The "second substance" is a substance that acts on the first substance, and specifically, the concept includes substances that are used to remove a part of the first substance that has been altered by the inking light or a part other than the part that has been altered.

The following embodiments will be described by way of example with respect to marking a marking line on the floor of a building under construction. In addition, in embodiment 1, a case where a marking line is made using the first and second substances described above will be described, and in embodiment 2, a case where a marking line is made using only the first substance (specifically, marking tape 3 (Figure 7)) will be described.

[II] Specific Contents of the Embodiments Next, specific contents of each embodiment will be described.

(Embodiment 1)
First, a description will be given of embodiment 1. This embodiment is an embodiment in which a marking line is formed by using a first substance and a second substance, and in particular, an embodiment in which a marking line is formed by using a second substance acting on the first substance to remove a portion of the first substance other than a portion altered by the marking irradiation light.

(Each substance)
First, the first substance and the second substance used in this embodiment will be described.

(Each substance - first substance)
The first substance used in the present embodiment may have any composition, and may include, for example, a photosensitive agent, a solvent, a spectral sensitizer, a coupler, a dye, etc. Note that the elements constituting the first substance described here are merely examples, and any element may be omitted, or an element not specifically described here may be added, as long as it complies with the above definition.

The "photosensitive agent" is the main substance that exhibits the photosensitive characteristics of the first substance, and may be, for example, a substance containing silver halide (examples include silver chloride, silver iodide, and silver bromide). The "solvent" is a substance that dissolves the target substance, and is an emulsion or binder, and may be, for example, gelatin, etc., in consideration of providing viscosity. The "spectral sensitizer" may be, for example, a sensitizer and illuminant that expand the absorption band for irradiated light to longer wavelengths. The "coupler" is, for example, a color-developing material. The "dye" is a substance that absorbs wavelengths below a certain wavelength band, and may be, for example, a substance containing chrysophenine, benzopurpurine 4B, etc.

In this embodiment, a case will be described in which a substance containing at least the aforementioned photosensitive agent, solvent, spectral sensitizer, and dye (i.e., a substance consisting of multiple types of materials containing at least silver halide) is used as the first substance configured to sensitize silver halide to light in a wavelength band corresponding to red. In addition, a case will be described in which this first substance is configured as a viscous paint that is sprayed and applied as a liquid.

(Each substance - second substance)
The second substance used in the present embodiment may have any composition, and may include, for example, a main developer, a developer preservative, an accelerator, a suppressor, and a fixing agent, etc. Note that the elements constituting the second substance described here are merely examples, and any element may be omitted, or an element not specifically described here may be added, as long as it complies with the above definition.

The "main developer" is a substance that functions as a reducing agent, and may be, for example, a substance containing p-phenylenediamine and phenidone. The "developer preservative" is a substance that prevents oxidation after the main developer has taken effect, and may be, for example, a substance containing sodium sulfite and sodium hydrogen sulfite. The "accelerator" is a substance that accelerates development, and the "inhibitor" is a substance that prevents so-called fogging. The "fixer" is a substance that has the function of removing a portion of the first substance other than the portion that has been altered by the inking irradiation light, and specifically, a substance that has the function of dissolving and removing silver halide, and may be, for example, sodium thiosulfate.

In this embodiment, a case will be described in which a substance containing at least the above-mentioned main developer, developer preservative, and fixer (i.e., a substance corresponding to a developer-fixer) is used as the second substance configured to remove the unexposed portion of the first substance. Also, a case will be described in which this second substance is configured to be sprayed as a liquid.

(Building under construction)
Next, a building under construction to which marking lines are to be added will be described. Fig. 1 is a diagram showing a building under construction to which marking lines are to be added. Fig. 1 illustrates a state in which a marking device 94 is installed in one room in the building under construction. Fig. 1 also illustrates the laser light L1 (marking irradiation light) irradiated to the floor 91 by a solid line, and for the sake of convenience, the trajectory of part of the laser light L1 in space is illustrated by a dashed line.

In the following explanation, the X-Y-Z directions shown in each figure are mutually orthogonal directions; specifically, the Z direction is the vertical direction, and the X and Y directions are horizontal directions orthogonal to the vertical direction. For example, the Z direction will be referred to as the height direction, the +Z direction as the upper side (plane), and the -Z direction as the lower side (bottom surface).

The configuration of the building under construction shown in FIG. 1 is arbitrary, but for example, it includes a floor 91, walls 92, and a ceiling 93. In this embodiment, the floor 91, walls 92, and ceiling 93 are gray, which corresponds to the color of concrete, and the position on the floor 91 where the laser light L1 is irradiated (the position corresponding to the solid line of the solid cross in FIG. 1) is the marking position where a marking line is drawn. In this case, for example, the floor 91 may be interpreted as corresponding to the "target object."

The marking device 94 is a laser light output device that irradiates a linear laser light L1 onto an object. The configuration of this marking device 94 is arbitrary, but for example, it is configured similarly to a known laser marking device, and is configured to output red laser light L1 from the irradiation section 941.

(First marking method)
Next, the first marking method will be described. The "first marking method" is the above-mentioned marking method, for example, a method for generating and marking a marking line using a first substance and a second substance. FIG. 2 is a flowchart showing the first marking method (in the following description of each process, steps are abbreviated as "S"), and FIGS. 3 to 6 are diagrams showing a part of a floor. Note that (a) in FIG. 3 to FIG. 6 is a plan view, and (b) in FIG. 3 to FIG. 6 is a cross-sectional view corresponding to the plan view in (a) in each figure. In particular, (b) in FIG. 3 to FIG. 6 is a cross-sectional view corresponding to the A-A arrow view shown in FIG. 3 (a). Here, for example, by referring to each of these figures as appropriate, a case where a marking line is marked on the floor 91 in FIG. 1 will be described as an example.

At SA1 in FIG. 2, irradiation of the laser light L1 is started. Although the specific details are arbitrary, for example, as shown in FIG. 1, in the same manner as in the conventional method, a marking device 94 is installed at a predetermined position in the building under construction, and a user (e.g., a worker) operates the marking device 94 to start irradiation of the laser light L1 at the marking position on the floor 91 (the position where the laser light L1 is shown by a solid line in FIG. 1). Note that by inputting the BIM data of the building under construction into the marking device 94, the marking device 94 may irradiate the laser light L1 on the floor 91 based on the BIM data, or may irradiate the laser light L1 based on other data. In this case, as shown in FIG. 1, the linear cross-shaped laser light L1 is irradiated at the marking position on the floor 91. Note that, for example, this SA1 may be interpreted as corresponding to the "irradiation process (first process)".

In SA2 of FIG. 2, a first chemical liquid 11 (FIG. 3) is sprayed. The "first chemical liquid" 11 is a paint that is a liquid containing the above-mentioned first substance, and is contained, for example, in the spray device 1 for the first chemical liquid in FIG. 3. The "spray device for the first chemical liquid" 1 contains the first chemical liquid 11 and is equipped with a nozzle for spraying (spraying) the contained first chemical liquid 11, and can be configured, for example, by applying a structure similar to that of a known spray can.

The specifics of step SA2 are arbitrary, but for example, a user operates the first chemical liquid spray device 1 to spray the first chemical liquid 11 contained in the first chemical liquid spray device 1 toward an area including the marking position on the floor 91, as shown in FIG. 3. In this case, the first chemical liquid 11 adheres to and is applied to the floor 91, and a first chemical liquid layer 12 is formed on the floor 91. The "first chemical liquid layer" 12 is a layer containing the aforementioned first substance, and is a layer formed by the first chemical liquid 11 sprayed and applied to the floor 91 (i.e., a layer corresponding to the first chemical liquid 11).

In this case, as time passes, the portion of the first chemical solution layer 12 that is irradiated with the laser light L1 becomes exposed to light and changes in quality, forming the first chemical solution side altered portion 121 in FIG. 4. The "first chemical solution side altered portion" 121 is a part of the first chemical solution layer 12, and is, for example, a portion that has been exposed to light by the laser light L1 and changed in quality and color, such as a portion that has changed in color as a result of silver halide turning to silver, turning, for example, black.

In this embodiment, as described above, the first substance (i.e., the first chemical solution layer 12) is configured so that the silver halide is photosensitive to light in a wavelength band corresponding to red, so that the portion of the first chemical solution layer 12 irradiated with the red laser light L1 is photosensitive, and the other portions of the first chemical solution layer 12 (portions irradiated with natural light) are not photosensitive to the extent relevant to marking out. In other words, the first chemical solution side altered portion 121 in FIG. 4, as shown in FIG. 4(a), is in the shape of a cross line in plan view corresponding to the laser light L1 irradiated to the floor in FIG. 1. For example, SA2 may be interpreted as corresponding to the "coating process (second process)".

At SA3 in FIG. 2, irradiation of the laser light L1 is terminated. Specifically, this is optional, but for example, the user may visually check the degree of exposure of the first chemical liquid layer 12 formed at SA2, or may check the passage of a predetermined time to determine the appropriate timing, and then operate the marking device 94 to terminate irradiation of the laser light L1. Note that here, for example, the time for which the first chemical liquid layer 12 is sufficiently exposed to the laser light L1 may be preset in the marking device 94, and the marking device 94 may automatically terminate irradiation based on the set time.

In SA4 of FIG. 2, the second chemical liquid 21 (FIG. 5) is sprayed. The "second chemical liquid" is a liquid containing the second substance described above, and is contained, for example, in the second chemical liquid spray device 2 of FIG. 5. The "second chemical liquid spray device" 2 contains the second chemical liquid 21 and is equipped with a nozzle for spraying (spraying) the contained second chemical liquid 21, and is, for example, similar to the above-mentioned first chemical liquid spray device 1, and can be configured by applying a structure similar to that of a known spray can.

The specifics of step SA4 are arbitrary, but for example, a user operates the second chemical spray device 2 to spray the second chemical liquid 21 contained in the second chemical spray device 2 toward the first chemical liquid layer 12 applied to the floor 91, as shown in Figure 5. In this case, the second chemical liquid 21 adheres to the entire first chemical liquid layer 12, and reactions corresponding to development and fixing occur in the first chemical liquid layer 12, and the parts of the first chemical liquid layer 12 other than the first chemical liquid side altered part 121 are dissolved by the second chemical liquid 21. Then, the dissolved portion of the first chemical liquid layer 12 (i.e., the portion of the first chemical liquid layer 12 other than the first chemical liquid side altered portion 121) is removed by any method (for example, by washing it off with water or any other liquid, or by wiping it off with cloth or paper, etc.), so that the first chemical liquid side altered portion 121 is left as a marking line on the floor 91 as shown in FIG. 6, and the marking line of the first chemical liquid side altered portion 121 is marked at a marking position on the floor. In this way, a marking line made of the black first chemical liquid side altered portion 121 is marked on the gray floor 91. For example, SA3 may be interpreted as corresponding to the "third step". This ends the first marking method.

(Effects of this embodiment)
According to this embodiment, by including a process of irradiating laser light L1, a process of applying the first chemical liquid 11, and a process of generating a marking line using the second chemical liquid 21, for example, it is possible to omit the work of marking out using a conventional ink pot, thereby making it possible to improve the work efficiency of the marking out work.

In addition, by performing the irradiation process in the first step and the application process in the second step, for example, the first chemical liquid 11 can be applied based on the laser light L1 irradiated onto the target object, the floor 91, and therefore the first chemical liquid 11 can be applied quickly in the appropriate position in the appropriate amount, which further improves the work efficiency of the marking out work and also makes it possible to prevent unnecessary use of the first chemical liquid 11.

In addition, by applying the first chemical liquid 11 to the target object, the floor 91, by spraying it, and by spraying the second chemical liquid 21 onto the first chemical liquid 11 (more specifically, the first chemical liquid layer 12), it becomes possible to easily apply or attach each chemical liquid, for example, even in places where it is difficult for workers to perform manual work.

In addition, by irradiating the laser light L1 as the marking irradiation light, it is possible to reliably mark the marking position by irradiating the marking position with the laser light L1, for example.

In addition, since the first chemical liquid 11 is a chemical liquid containing multiple types of substances including at least silver halide, and the second chemical liquid 21 is a chemical liquid containing a substance corresponding to a developing and fixing solution, for example, by using the second chemical liquid 21 to remove a part other than the first chemical liquid side altered part 121 in the first chemical liquid 11 (more specifically, the first chemical liquid layer 12) altered by the laser light L1, a marking line corresponding to the first chemical liquid layer 12 can be generated, making it possible to reliably mark the marking line.

(Embodiment 2)
Next, a second embodiment will be described. In this embodiment, a marking line is formed using a first substance, and in particular, a marking tape 3 (FIG. 7) is used to form and mark a marking line. Note that in this embodiment, the same contents as those described in the first embodiment will not be described.

(Ink-out tape)
Figures 7 to 9 are diagrams showing a part of a floor with marking tape applied. Note that (a) in Figures 7 to 9 is a plan view, and (b) in Figures 7 to 9 is a cross-sectional view corresponding to the plan view (a) in each figure. In particular, (b) in Figures 7 to 9 is a cross-sectional view corresponding to the B-B arrow view shown in Figure 7(a).

The marking tape 3 in FIG. 7 is a tape used to mark marking lines, and is formed as a single piece of tape by superimposing, for example, an unwanted wavelength absorbing layer 31, a photosensitive layer 32, and an adhesive layer 33.

The unwanted wavelength absorbing layer 31 is a layer for absorbing light in wavelength bands other than red, which is the color of the laser light L1 for sensitizing the photosensitive layer 32 to mark the marking lines, that is, a layer for absorbing natural light that is not required to mark the marking lines. This unwanted wavelength absorbing layer 31 can be made of any material, but for example, it can be made of chrysophene or benzopurpurine 4B, which correspond to the dyes mentioned above. In addition, this unwanted wavelength absorbing layer 31 is formed relatively thin so that the photosensitive layer 32 on which the unwanted wavelength absorbing layer 31 overlaps can be seen through from the unwanted wavelength absorbing layer 31 side.

The photosensitive layer 32 is a layer formed from the first substance described above, specifically, a layer formed between the unwanted wavelength absorption layer 31 and the adhesive layer 33, and is, for example, a layer formed from a substance containing the photosensitive agent, a solvent, and a spectral sensitizer described above.

The adhesive layer 33 is a layer for attaching the marking tape 3 to an object such as the floor 91 (Figure 1), and is a layer that has an adhesive surface for adhering to the object on the side opposite the photosensitive layer 32 (the surface in the -Z direction in Figure 7 (b)).

(Second marking method)
Next, the second marking method will be described. The "second marking method" is the above-mentioned marking method, for example, a method for generating and marking a marking line using a first substance. Fig. 10 is a flowchart showing the second marking method. Here, for example, a case of marking a marking line on the floor 91 in Fig. 1 will be described as an example with appropriate reference to Figs. 7 to 9 described above.

At SB1 in Figure 10, irradiation of laser light L1 begins. The specific method is arbitrary, but for example, as shown in Figure 1, irradiation of laser light L1 to the marking position on the floor 91 begins in the same manner as in SA1 in Figure 2.

At SB2 in Figure 10, the marking tape 3 is applied. The specific method is arbitrary, but for example, as shown in Figure 1, laser light L1 is irradiated to a position corresponding to the marking position, and so the marking tape 3 is applied to an area of the floor 91 including the position where the laser light L1 is irradiated. Here, for example, as shown in Figure 7(b), the marking tape 3 is affixed to the floor 91 by adhering the adhesive surface of the adhesive layer 33 of the marking tape 3 to the floor 91. In FIG. 7, the marking tape 3 is attached along the left-right direction (X-axis direction) of FIG. 7(a), so the marking tape 3 is not attached to the part of the floor 91 where the cross-shaped laser light L1 is irradiated (the part along the Y-axis of the laser light L1 on the upper side (+Y direction) and lower side (-Y direction) of FIG. 7). However, if necessary, the marking tape 3 may be further attached along the up-down direction (Y-axis direction) of FIG. 7 so that the marking tape 3 is attached to all parts of the floor 91 where the laser light L1 is irradiated. Alternatively, a relatively wide marking tape 3 may be used so that one piece of marking tape 3 is attached to all parts of the floor 91 where the laser light L1 is irradiated.

In this case, the portion of the photosensitive layer 32 of the marking tape 3 that is irradiated with the laser light L1 is exposed to light and altered, forming the photosensitive layer-side altered portion 321 in FIG. 8. The "photosensitive layer-side altered portion" 321 is a part of the photosensitive layer 32, and is, for example, a portion that has been exposed to the laser light L1 and altered and discolored, such as a portion that has been altered by silver halide becoming silver and has turned black.

In this embodiment, as described above, the unwanted wavelength absorption layer 31 is configured to absorb light in wavelength bands other than red, so the portion of the photosensitive layer 32 irradiated with the red laser light L1 is exposed, and the other portions of the photosensitive layer 32 are not exposed to the extent that is relevant to marking, since natural light is absorbed by the unwanted wavelength absorption layer 31. In other words, the photosensitive layer side altered portion 321 in FIG. 8 is, as shown in FIG. 9(a), in a plan view, in the shape of a cross line corresponding to the laser light L1 irradiated to the floor in FIG. 1.

At SB3 in FIG. 10, irradiation of the laser light L1 is terminated. Specifically, this is optional, but for example, irradiation of the laser light L1 is terminated in the same manner as in SA3 in FIG. 2. In this case, the photosensitive layer side altered portion 321 in FIG. 9 formed at SB2 becomes visible through the unwanted wavelength absorption layer 31, and the photosensitive layer side altered portion 321 is marked on the gray floor 91 as a black marking line. This ends the second marking method.

(Effects of this embodiment)
According to this embodiment, by using the marking tape 3, for example, the work of marking out using a conventional ink pot can be omitted, thereby making it possible to improve the work efficiency of the marking out work.

[III] Modifications to the embodiment The embodiment of the present invention has been described above, but the specific configuration and means of the present invention can be modified and improved as desired within the scope of the technical ideas of each invention described in the claims. Such modifications will be described below.

(About the problem to be solved and the effects of the invention)
First, the problems that the invention aims to solve and the effects of the invention are not limited to those described above, and may vary depending on the implementation environment of the invention and the details of the configuration, and may solve only some of the problems described above or achieve only some of the effects described above.

(shape, number, structure, time series)
With regard to the components illustrated in the embodiments and drawings, the shape, numerical values (number), or the structure or chronological relationships of multiple components can be modified and improved as desired within the scope of the technical concept of the present invention.

(For each step)
In addition, the execution order of each step of each marking method in each embodiment may be changed arbitrarily. For example, in Fig. 2, SA2 may be executed before SA1, or SA4 may be executed before SA3. Or, in Fig. 10, SB2 may be executed before SB1.

(About the color of laser light)
In addition, in each of the above embodiments, the case where the color of the laser light L1 is red has been described, but the color may be changed to any other color (e.g., green, blue, yellow, etc.) In this case, the composition of each substance may be changed as desired so that the marking method described in each embodiment can be performed.

(Removal of part of the first substance that has been altered by the inking light)
In the above-mentioned first embodiment, the case where the marking line is generated by removing a part other than the part of the first substance that has been altered by the marking irradiation light (i.e., the first chemical liquid side altered part 121 in the first chemical liquid layer 12 in FIG. 4) has been described, but the present invention is not limited to this. For example, the part of the first substance that has been altered by the marking irradiation light may be configured to be removed. Specifically, any of the following may be used. For example, a substance corresponding to a so-called photoresist may be used as the first substance, and any substance that dissolves and removes a part of the photoresist that has been altered by being irradiated with the marking irradiation light may be used as the second substance. After irradiating a part of the first substance with the marking irradiation light to alter it, the second substance may be sprayed onto the first substance to adhere thereto, thereby dissolving and removing the altered part of the first substance, and the removed part of the first substance may be used as the marking line.

(Block division of irradiation areas)
In addition, in the above-mentioned first embodiment, in order to expose the first chemical solution layer 12 to the extent necessary for marking the marking lines by irradiating the laser light L1, it is necessary to continue irradiating the first chemical solution layer 12 with the laser light L1 for a predetermined period of time or more, so that the area to be irradiated with the laser light L1 may be divided into blocks. For example, when marking marking lines on three walls 92 shown in Fig. 1, the area may be divided into blocks for each wall 92, and a marking line may be formed for each block (for each wall 92).

(Laser light width)
Also, the width of the laser light L11 output by the marking device 94 may be adjusted as desired. Fig. 11 is a side view of the inside of a building under construction with the marking device installed, and Fig. 12 is an enlarged view of a part of Fig. 11. As shown in Fig. 11, the marking device 94 is equipped with a tripod and configured to output the laser light L1 from a position corresponding to a predetermined height from the floor 91. Therefore, when the laser light L1 of the same width is irradiated, the widths D1 and D2 of the laser light L1 irradiated to the wall 92 differ from each other depending on the position on the wall 92 where the laser light L1 is irradiated, as shown in Fig. 12. That is, for example, when laser light L11 is irradiated toward a position at the same height as the irradiation section 941, the width D1 of the laser light L11 irradiated to the wall 92 will be different from the width D2 of the laser light L12 irradiated to the wall 92 when laser light L12 (laser light having the same width as the laser light L11) is irradiated toward a position lower than the irradiation section 941 (in the -Z direction). As a result, the width of the marking line drawn on the wall 92 will be different depending on the position at which the marking line is drawn.

In consideration of this point, the width of the laser light L1 output from the marking device 94 may be arbitrarily adjusted to maintain the width of the marking line constant regardless of the position where the marking line is applied. The specific adjustment method is arbitrary, but for example, a program for determining the width of the laser light L1 output from the marking device 94 so that the width of the laser light L1 irradiated to the object is constant based on the relationship between the installation position of the marking device 94 and the position where the marking line is applied is installed in the marking device 94, information indicating the installation position of the marking device 94 and the position where the marking line is applied is input to the marking device 94, and the marking device 94 automatically adjusts the width of the laser light L1 it outputs based on the input information, thereby maintaining the width of the laser light L1 irradiated to the object constant regardless of the position of the object to which the laser light L1 is irradiated, or the width of the laser light L1 output from the marking device 94 may be adjusted by the user manually operating the marking device 94.

(Projector device)
Fig. 13 is a diagram showing a building under construction to which marking lines are to be added. In addition to or instead of the marking device 94 of Fig. 1 according to the above embodiment, a projector device 95 of Fig. 13 may be used to irradiate (project) marking irradiation light.

The projector device 95 is a projection device, a projector, and is, for example, a device that irradiates (projects) the projection light L2 in a planar manner onto the entire surface of one wall 92 shown in FIG. 13. For example, the projector device 95 irradiates the wall 92 with the projection light L2 including the marking image L21 of four red crosses. Then, the marking image L21 in this projection light L2 may be used in the same manner as the laser light L1 described in the first embodiment to mark the marking line using the marking image L21 of the projection light L2. In particular, when configured in this manner, it is possible to change the shape or position of the marking line by simply changing the shape or position of the marking image L21, without changing the position and range of irradiation of the projection light L2.

By configuring it in this way, it is possible to use the projected light L2 to mark any shape or number of marking lines at any location in a certain area, for example.

(Regarding marking devices or marking systems)
In addition, a marking device or a marking system that automatically executes all or part of the first marking method described in the above embodiment 1 may be configured. Specifically, although it is optional, for example, the first chemical liquid spray device 1 and the second chemical liquid spray device 2 may be implemented in an aircraft such as a drone, so that SA2 and SA4 in Fig. 2 are executed using the aircraft. Alternatively, the functions of the first chemical liquid spray device, the second chemical liquid spray device 2, and the marking device 94 may be implemented in the aircraft or a vehicle that automatically travels on the ground, so that all the steps in Fig. 2 are executed by the aircraft or the vehicle.

(Regarding unwanted wavelength absorption layer)
7 described in the second embodiment may be omitted. In this case, the substance constituting the unwanted wavelength absorption layer 31 may be added to the photosensitive layer 32, or the substance may not be added to the photosensitive layer 32.

(Application device)
Fig. 14 is a side view showing the inside of the application device 4. In Fig. 14, each element inside the application device 4 is shown by a solid line, and the outline of a case 400 that houses the internal elements is shown by a dashed line.

The application device 4 is a device for applying the marking tape 3 of FIG. 7 described in the second embodiment, and is configured so that, for example, the conveying tape 45 is unwound from the unwinding reel 41 side and wound on the take-up reel 42 side via the first rotating shaft 43 and the second rotating shaft 44. In particular, the marking tape 3 is wound on the unwinding reel 41 together with the conveying tape 45. Then, the marking tape 3 (not shown in FIG. 14) may be unwound together with the conveying tape 45, and the marking tape 3 may be unwound outside the case 400 near the first rotating shaft 43 and applied to the floor 91. Note that the method of applying the marking tape 3 is not limited to the method using the application device 4, and any other method (for example, a method of manually unwinding and applying the wound marking tape 3, etc.) may be used.

(Methods other than spraying)
In addition, in each of the above-described embodiments, the first chemical liquid 11 (i.e., the first substance) and the second chemical liquid 21 (i.e., the second substance) are sprayed, but the present invention is not limited to this. For example, a worker may apply the first chemical liquid 11 and the second chemical liquid 21 using a work spatula or a work brush.

(Object)
Further, in each of the above embodiments, the case where the floor 91 is the target object has been mainly described, but the wall 92 or the ceiling 93 may be used as the target object for marking out.

(application)
In addition, the techniques described in the above embodiments and modifications may be applied arbitrarily. For example, in Fig. 1 and the like, the laser light L1 irradiated to the object such as the floor 91 is a straight line, but the present invention is not limited to this. For example, the laser light L1 may be irradiated to the object to mark a curved marking line on the object.

It is also possible to perform design drawing using the technology described in the first embodiment above. For example, the object may be drawn on by irradiating the object with laser light L1 to form a line corresponding to the outline of the object, and then spraying the first chemical liquid 11 and the second chemical liquid 21 in sequence.

It is also possible to perform masking drawing using the technique described in the first embodiment above. For example, a line corresponding to the drawing target may be irradiated onto the object with laser light L1, masking paper may be temporarily attached to the area to be masked (i.e., the area to be hidden where drawing is not performed), and then the first chemical liquid 11 and the second chemical liquid 21 may be sprayed in sequence, and the masking paper may be removed, thereby drawing the drawing target that is partially masked (hidden) on the object.

(Features)
Furthermore, the features described in the above embodiments and modifications may be combined in any manner.

(Additional Note)
The marking method of Appendix 1 is a marking method for marking a marking line on an object, and includes at least a first step of performing one of an irradiation step of irradiating marking irradiation light, which is light for marking the marking line at a marking position on the object where the marking line is to be marked, or an application step of applying a first substance that is altered by irradiating an area including the marking position on the object with the marking irradiation light, a second step of performing the other step of the irradiation step or the application step, and a third step of generating the marking line corresponding to the altered portion of the first substance by using a second substance that acts on the first substance to remove a portion of the first substance that has been altered by the marking irradiation light or another portion other than the portion.

The marking method of Appendix 2 is the marking method described in Appendix 1, in which the irradiation step is performed in the first step, and the application step is performed in the second step.

The marking method of Supplementary Note 3 is the marking method of Supplementary Note 1 or 2, in which the first substance is applied to the object by spraying in the application step, and the second substance is sprayed onto the first substance in the third step.

The marking method of Supplementary Note 4 is the marking method described in any one of Supplementary Note 1 to 3, in which in the irradiation step, the laser light output from a laser light output device that irradiates the target with linear laser light, or the projection light output from a projection device that projects planar projection light onto the target, is irradiated as the marking irradiation light.

The ink-out method of appendix 5 is the ink-out method of any one of appendixes 1 to 4, in which the first substance is a substance consisting of multiple types of substances including at least silver halide, and the second substance is a substance corresponding to a developing and fixing solution.

(Effect of supplementary notes)
According to the marking method described in Appendix 1, by including the steps of irradiating marking light, applying a first substance, and generating a marking line using a second substance, it is possible to omit the work of marking out using a conventional ink pot, for example, thereby making it possible to improve the work efficiency of the marking out work.

According to the marking method described in Appendix 2, by performing an irradiation process in the first step and performing an application process in the second step, for example, the first substance can be applied based on the marking irradiation light irradiated on the object, so that the first substance can be applied quickly in the appropriate position and in the appropriate amount, which further improves the work efficiency of the marking work and also makes it possible to prevent unnecessary use of the first substance.

According to the marking method described in Appendix 3, the first substance is applied to the object by spraying it, and the second substance is sprayed onto the first substance, so that each substance can be easily applied or attached even in places where it is difficult for workers to perform manual work (for example, a part where a wall and a floor meet, a corner, or a curved part).

According to the marking method described in Appendix 4, by irradiating laser light or projected light as the marking irradiation light, it is possible to, for example, use laser light to irradiate the marking position and reliably mark the marking line at the marking position, and it is also possible to use projected light to mark the marking line at any point in a certain area.

According to the marking method described in Appendix 5, the first substance is a substance consisting of multiple types of substances including at least silver halide, and the second substance is a substance corresponding to a developer-fixer. For example, by using the second substance to remove a portion of the first substance other than the portion altered by the marking irradiation light, a marking line corresponding to the altered portion of the first substance can be generated, making it possible to reliably mark the marking line.

1 First chemical liquid spray device 2 Second chemical liquid spray device 3 Marking tape 4 Application device 11 First chemical liquid 12 First chemical liquid layer 21 Second chemical liquid 31 Unwanted wavelength absorption layer 32 Photosensitive layer 33 Adhesive layer 41 Unwinding reel 42 Winding reel 43 First rotating shaft 44 Second rotating shaft 45 Transport tape 91 Floor 92 Wall 93 Ceiling 94 Marking device 95 Projector device 121 First chemical liquid side altered portion 321 Photosensitive layer side altered portion 400 Case 941 Irradiation portion D1 Width D2 Width L1 Laser light L2 Projected light L11 Laser light L12 Laser light L21 Marking image

Claims (5)

A marking method for marking an object, comprising the steps of:
a first step of performing one of an irradiation step of irradiating a marking light, which is light for marking the marking line at a marking position on the object, or an application step of applying a first substance that changes in quality by irradiating an area including the marking position on the object with the marking light;
a second step of performing the other of the irradiation step or the coating step;
a third step of removing a portion of the first material that has been altered by the marking irradiation light using a second material that acts on the first material, thereby generating the marking line corresponding to the portion of the first material that has been altered by the marking irradiation light;
A marking method including: In the first step, the irradiation step is performed,
In the second step, the coating step is performed.
The marking method according to claim 1. In the application step, the first substance is applied to the object by spraying it,
In the third step, the second substance is sprayed onto the first substance.
The marking method according to claim 1 or 2. In the irradiation step, the laser light output from a laser light output device that irradiates the object with a linear laser light, or the projection light output from a projection device that projects a planar projection light onto the object is irradiated as the inking irradiation light.
The marking method according to any one of claims 1 to 3. the first material is a material consisting of a plurality of types of materials including at least silver halide;
the second substance is a substance corresponding to a developer-fixer;
The marking method according to any one of claims 1 to 4.

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