JPH07117399B2 - Method and device for inspecting flatness of architectural groundwork - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention is used for a method for inspecting the flatness of a building finishing substrate such as a wall surface or a ceiling surface made of concrete or mortar before cloth finishing, and a method therefor. It is related to the device.

[Conventional technology]

For example, in a cross-finished wall surface or a paint-finished wall surface, if there is a convex portion on the surface of the base (concrete or mortar), the convex portion is also formed on the finishing layer such as the cloth or the coating film.

Since this convex portion is generally small, it hardly causes a problem depending on the illumination light rays from the direction perpendicular to the wall surface or a direction close to it, for example, providing an indirect lighting fixture at the corner between the ceiling surface and the wall surface, Or, when a light parallel to the wall surface is received as in the case where a lighting device is attached in close contact with the wall surface, a shadow is formed behind the convex portion, which is very conspicuous.

For this reason, it is necessary to inspect the surface accuracy of the underlayer surface before applying a cloth finish or a paint finish, and if there is a convex portion, repair it with a trowel press or the like.

However, since the cement-colored surface of concrete or mortar before drying, which is in a stage where repair is possible, has a shade pattern of light and shade, it is very difficult to visually determine the convex portion.

For this reason, in the past, a fluorescent lamp was applied to the base surface,
The presence or absence of the convex portion was inspected.

[Problems to be solved by the invention]

 The conventional example described above has the following problems.

That is, since the fluorescent lamp has a considerable thickness, and the luminaire in which the fluorescent lamp is fitted has a larger thickness, it is impossible to irradiate the light beam in parallel with the base surface, and it is possible to accurately determine the presence or absence of the convex portion. It was difficult to judge in particular, and it was impossible to judge in particular how high the convex portion was.

Therefore, when the finishing with a cloth or the like is completed and the lighting fixture of the permanent installation is attached, the presence of the convex portion may be noticed for the first time and a large-scale repair work may be required.

An object of the present invention is to provide a method capable of easily and accurately determining the presence or absence of a convex portion and the height by visual observation, and an apparatus used for the method.

[Means for solving problems]

The feature of the plane accuracy inspection method of the architectural finishing substrate according to the present invention is that the spectral rays of a plurality of colors that are flat and have a thin layer are irradiated in parallel with the surface of the architectural finishing substrate, and By observing the difference in color, it is possible to determine the presence or absence and the height of a convex portion on the surface of the architectural finishing base.

The features of the flatness accuracy inspection apparatus for a building finish substrate according to the present invention are: a main body of the apparatus, a light source, a power source of the light source, a means for separating light from the light source into spectral rays of a plurality of colors, and the spectral rays in a planar shape. And a lens that arranges in a thin layer,
A slit for irradiating the planar spectrum light rays in parallel with the surface of the architectural finishing base is provided, and a pair of parallel guide rails are continuously provided on both sides of the slit in the apparatus body, and the guide rail has a lower surface. The gauge is positioned in parallel with the back surface of the main body of the apparatus, and the gauge is supported along the guide rail so as to be positionally adjustable.

[Action]

According to the method of the present invention, when a planar and thin layered spectrum light rays of a plurality of colors are irradiated in parallel with the surface of the building finish base, if there is a convex portion on the surface of the building finish base, the spectrum light rays So even in a dark place,
The presence or absence of the convex portion can be visually determined.

Moreover, since the color of the spectrum light ray that strikes differs depending on the height of the convex portion, the height of the convex portion can be immediately and accurately determined by visually observing the color difference.

According to the apparatus of the present invention, by bringing the back surface of the apparatus main body and the lower surface of the gauge into contact with the surface of the architectural finishing substrate, the planar and thin layered spectral light rays radiated from the slit are formed. It is parallel to the surface of the architectural finish base.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

First, a method for inspecting the plane accuracy of a building finish substrate according to the present invention will be described.

FIG. 1 is a principle diagram of a method for inspecting the plane accuracy of a building finishing base. As shown in the figure, the light emitted from the light source 1 passes through the slit 2 to become a thin light beam, and the prism 3 causes the red, green, and blue light to be divided into three light beams.
The color spectrum is divided into rays a, b, and c. The three-color spectral rays a, b, and c are arranged in a plane and thin layer by the lens 4 and then irradiated in parallel with the surface of the building finishing base 5. The thickness d of the spectral rays a, b, c of each color is set in advance to an appropriate value (for example, by setting the angle of incidence of the ray on the prism 3, the refractive index of the prism 3, the focal length of the lens 4, etc.).
1mm) is set.

Therefore, if there are convex parts 6 and 7 on the surface of the architectural finishing base 5,
One of the spectral rays a, b, c hits this. In the illustrated example, the red spectral ray a hits the convex portion 6,
The green spectral ray b hits the convex portion 7.

Therefore, by visually observing the surface of the architectural finishing base 5, it can be seen that the colored portions have the convex portions 6 and 7. It can be seen that the height of the convex portion 6 that appears red is d or less, and the height of the convex portion 7 that looks green is greater than d and 2d or less. Although not shown, if there is a convex portion that appears blue, its height is larger than 2d and 3d.
It is the following.

An incandescent lamp is used as the light source 1, and an optical filter that transmits only the red, green, and blue wavelength ranges can be used to sharpen the spectral rays a, b, and c, but the loss of light amount due to the optical filter , The spectral rays a, b,
In order to make c even clearer, as shown in FIG. 2, a three-wavelength band emission type fluorescent lamp which has high emission intensities in the red, green and blue wavelength ranges and is almost the same as each other is used as the light source 1. Is desirable.

Next, a plane accuracy inspection apparatus for a building finish substrate according to the present invention will be described.

FIG. 3 and FIG. 4 show an example of an apparatus for inspecting flatness of a building finishing base according to the present invention. In the figure, 8 is a device main body having a handle 8a at one end and having a flat back surface and having a size and weight that can be carried. On one side surface, in the vicinity of the back surface, a planar and thin layered multi-color device is provided. A slit 9 having a lateral opening is formed so as to irradiate the spectral light rays in parallel with the surface of the architectural finishing base 5.

Inside the device body 8, a light source 1 such as the above-mentioned three-wavelength band emission type fluorescent lamp, a battery (not shown) for the power source thereof, a slit 2, and light rays passing through the slit 2 are red, green and blue. A spectroscopic means 10 such as a prism that disperses colors and a lens 4 that arranges each spectral ray into a flat and thin layer are built in.

As shown in FIG. 5, rubber suction cups 11 are provided at both ends of the apparatus body 8 in the longitudinal direction. Reference numeral 12 is a sucker adjusting screw, and by rotating this screw 12, the shaft body 13 moves in the axial direction to increase the suction force to the sucker 11,
It is designed to be weakened.

A pair of parallel guide rails 14a and 14b are continuously provided at both ends of the slit 9 in the apparatus body 8, and the lower surfaces of the guide rails 14a and 14b are located flush with the back surface of the apparatus body 8. A gauge 15 is supported along the guide rails 14a and 14b so that its position can be adjusted. Grooves 16 parallel to the guide rails 14a are formed on the outer surface of at least one of the guide rails 14a, and engaging recesses 17 are formed at regular intervals on the bottom surface of the grooves 16. A stopper 19 is provided at the end of the cage 15 at a position corresponding to the groove 16 so as to be engageable with and disengageable from the engaging recess 17 and biased in the engaging direction by a spring 18. By engaging the stopper 19 and the engaging recess 17 with each other, the gauge
15 is fixed to the guide rails 14a and 14b, and the gauge 15 is pushed in the longitudinal direction of the guide rails 14a and 14b with a force of a certain amount or more, so that the engagement between the stopper 19 and the engagement recess 17 is released. Has been done.

According to the above configuration, the back surface of the device body 8 and the gauge 15
By bringing the back surface of the construction finishing substrate 5 into contact with the construction finishing substrate 5, the spectral rays emitted from the slit 9 are parallel to the surface of the construction finishing substrate 5. In this state, the light source 1 is turned on, and the spectral light source is emitted from the slit 9 in parallel with the surface of the architectural finishing base 5.

If there is a convex portion in the area surrounded by the gauge 15, the device main body 8 and the guide rails 14a and 14b, one of the spectrum rays illuminates the convex portion and is colored as described in FIG. It is possible to easily and accurately determine the height of the convex portion by visually recognizing the existence of the convex portion and visually observing the color difference.

By providing the suction cup 11 as in the above embodiment,
Whether the building finish base 5 is a wall surface or a ceiling surface, the device can be fixed with the suction cup 11 of the building finish base 5 and the hand can be released from the device, so that the marking of the convex portion with a writing instrument is possible. Can be done easily.

〔The invention's effect〕

According to the method of the present invention, by irradiating a planar and thin layered spectrum light rays of a plurality of colors in parallel with the surface of the building finishing base, and visually observing the difference in color of the portion irradiated with the spectrum light rays. Therefore, since it is determined whether or not there is a convex portion on the surface of the architectural finish base and the height, even in a dark place, the presence and the height of the convex portion of the architectural finish base surface can be visually and easily immediately. There is an effect that can be accurately determined.

When the device of the present invention is used, the back surface of the device main body and the lower surface of the gauge are brought into contact with the surface of the architectural finishing substrate, so that the planar and thin layered spectral light rays emitted from the slits. Can be made parallel to the surface of the architectural finishing base, so that the above method can be carried out easily.

[Brief description of drawings]

FIG. 1 is a principle diagram of a method for inspecting the plane accuracy of a building finish substrate according to the present invention, FIG. 2 is a characteristic diagram of a three-wavelength fluorescent lamp, and FIG. 3 is a diagram showing a plane accuracy inspection device for a building finish substrate according to the present invention. FIG. 4 is a perspective view, FIG. 4 is a cross-sectional view of the device, and FIGS. 5 and 6 are cross-sectional views of main parts of the device. 1 ... Light source, 3 ... Prism, 4 ... Lens, 5 ... Construction finishing base, 8 ... Device body, 10 ... Spectral means (prism), 14a, 14b ... Guide rail, 15 ... Gauge.

Claims (2)

[Claims] 1. A flat and thin layered spectrum light beam of a plurality of colors is irradiated parallel to the surface of an architectural finishing base,
A method for inspecting the plane accuracy of a building finish substrate, wherein the presence or absence of a convex portion and the height of the surface of the building finish substrate are determined by visually observing the difference in color of the portion irradiated with the spectral light rays. 2. A device main body, a light source, a power source for the light source, and means for splitting light from the light source into spectral light beams of a plurality of colors.
A lens for arranging the spectral rays in a flat and thin layer and a slit for irradiating the planar spectral rays in parallel with the surface of the architectural finishing base are provided, and a pair of parallels are provided on both sides of the slit in the apparatus body. A series of guide rails, and the guide rail has a gauge whose lower surface is flush with the back surface of the apparatus main body and is freely supported along the guide rail. Flatness accuracy inspection equipment for architectural finishing groundwork.