marker

Abstract

This product provides a marker that more clearly shows the reinforcement bar arrangement in buildings, is easy to remove from the rebar, and requires minimal manufacturing time. [Solution] The marker 1 is a marker that can indicate direction at a construction site, and comprises a first sheet 5, a second sheet 6 laminated on the first sheet, and a magnet sandwiched between the first sheet and the second sheet, and has a polygonal shape with upper and lower sides parallel to each other when viewed from a direction perpendicular to the lamination direction, and has a convex portion 2 formed by an outward-sloping edge at the left end.

Description

Technical Field

[0001] This invention relates to a marker used at a building construction site.

Background Art

[0002] At a building construction site, in order to check whether the construction is proceeding as designed, a scale is placed and the situation is confirmed by taking photos. In particular, it is important to check the reinforcement state of the building's reinforcing bars in order to ensure strength and the like. And in order to show that reinforcement state, a marker such as that in Patent Document 1 is used.

Prior Art Documents

Patent Documents

[0003] <照

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the marker of Patent Document 1 has a clamping portion that substantially wraps around the reinforcing bar and a camber portion, and is not necessarily easy to remove and is not conspicuous. Also, it takes time to manufacture such a marker.

Means for Solving the Problems

[0005] As a result of examining the above problems, the inventors of the present invention conducted intensive research and achieved the following invention. The present invention includes the following. [1] A marker that can indicate a direction at a construction site, a first sheet, a second sheet laminated on the first sheet, and a magnet sandwiched between the first sheet and the second sheet, when viewed from a direction perpendicular to the lamination direction, It has a polygonal shape with upper and lower sides that are parallel to each other, A marker having a protrusion formed by an outward-sloping edge at its left end. [2] The marker according to [1], wherein the right end has a recess formed by an inwardly sloping edge. [3] The marker according to [1], wherein the first sheet and the second sheet each consist of a surface sheet portion and a resin portion for providing thickness, and the surface sheet portion has a fluorescent color. [Effects of the Invention]

[0006] A marker that can indicate direction at a construction site, comprising a first sheet, a second sheet laminated on the first sheet, and a magnet sandwiched between the first and second sheets, having a polygonal shape with upper and lower sides parallel to each other when viewed from a direction perpendicular to the lamination direction, and having a protrusion formed by an outward-sloping side at the left end, allows for easy confirmation of the reinforcement direction of rebars even in photographs, and can be easily removed because it is equipped with a magnet. Furthermore, if the right end has a recess formed by an inwardly sloping edge, not only does the direction become even clearer, but if the recess corresponds to the convex part at the left end, then by cutting a single long sheet while maintaining a constant interval and forming convex parts in the same direction, sheets of the same shape can be produced, and virtually no waste material is generated. Furthermore, if the first and second sheets are each composed of a surface sheet portion and a resin portion for thickness, and the surface sheet portion has a fluorescent color, it will not only be easy to grasp but also stand out, making it easy to identify in photographs and electronic images. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1(a) is a perspective view of marker 1A in the first embodiment, and Figure 1(b) is a perspective view of marker 1B in the second embodiment. [Figure 2]Figure 2(a) is a cross-sectional view of the marker 1A in the first embodiment when cut in the thickness direction, and Figure 2(b) is a cross-sectional view of the marker 1B in the second embodiment when cut in the thickness direction. [Figure 3] Figure 3 shows marker 1 placed on reinforcing bars arranged in a grid pattern. [Figure 4] Figure 4 shows marker 1 placed on the reinforcing steel of a tower-shaped building. [Modes for carrying out the invention]

[0008] The following describes the embodiments for carrying out the invention, but the present invention is not limited to these embodiments.

[0009] [Marker 1A (First Embodiment)] The marker A1 shown in Figures 1(a) and 2(a) is the marker of the first embodiment. As seen in Figure 1(a), it is formed by overlapping the first sheet 5 and the second sheet 6, and has a polygonal shape with parallel upper and lower edges, and a protrusion 2 formed by an outward-sloping edge at the left end.

[0010] Furthermore, the right end portion 3 has a recess 3 formed by an inwardly sloping edge. Preferably, the left end portion (convex portion 2) and the right end portion (recess 3) have corresponding shapes. That is, preferably, if two markers are prepared, the right end portion of one marker 1 and the left end portion of the other marker fit together perfectly. With this configuration, multiple first sheets 5 (or second sheets 6) can be manufactured by cutting a long sheet at regular intervals so that the convex portions 2 are in the same direction.

[0011] The first sheet 5 and the second sheet 6 are made of a resin such as vinyl, and preferably have a fluorescent color. Having a fluorescent color allows the position of the marker to be clearly identified in photographs or images. The first sheet 5 and the second sheet 6 may be the same color or different colors.

[0012] The first sheet 5 and the second sheet 6 are adhered with an adhesive. If vinyl tapes are used as the first sheet 5 and the second sheet 6, the adhesive has already been applied, so they can be easily pasted onto each other.

[0013] Also, as can be seen from Fig. 2(a), between the first sheet 5 and the second sheet 6, there are two disc-shaped magnets 4 provided. The magnet 4 is sandwiched between the first sheet 5 and the second sheet 6. By adopting such a configuration, either the first sheet 5 can be used as the front side or the second sheet 6 can be used as the front side.

[0014] [Marker 1B (Second Aspect)] In the marker 1B of the second aspect, the first sheet 5 includes a first resin part 71, and the second sheet 6 includes a second resin part 72. As a result, due to the superposition of the first resin part 71 and the second resin part 72, the thickness increases. This not only makes handling easier but also ensures strength, enabling long-term use. Other features of the second aspect are the same as those of the first aspect.

[0015] [Usage Method] The usage method of the marker 1 will be described. For example, as shown in Fig. 3, in the reinforcement arrangement state of the building's steel bars, it is preferable to use the marker 1 to clearly indicate the vertical steel bars 81, 82 and the horizontal steel bars 83, 84. In particular, as shown in Fig. 3, when the steel bars are stacked in a grid state, it is difficult to distinguish the vertical and horizontal directions, so this is preferable. Furthermore, if necessary, it is necessary to indicate thick steel bars and thin steel bars. In Fig. 3, for the vertical steel bars 81, 82, colored markers 1 are arranged in the longitudinal direction of the steel bars on the drawing, and for the horizontal steel bars 83, 84, cut-out markers 1 are arranged in the longitudinal direction of the steel bars. Furthermore, by directing the marker 1 towards the scale, it becomes clearer which scale to look at.

[0016] Another use of marker 1 is in tall buildings where vertical reinforcing bars 91 and horizontal reinforcing bars 92 are used. By using different colors for marker 1 placed on vertical reinforcing bars and marker 1 placed on horizontal reinforcing bars, it becomes easier to distinguish between horizontal and vertical reinforcing bars. Furthermore, as shown in Figure 4, in the case of reinforcing bars forming a rectangular prism building, it is possible to use different colors for marker 1 on adjacent sides. For example, in Figure 4, a colored marker 1 is placed on the vertical reinforcing bars on one side, and a gray (different color) marker 1 is placed on the vertical reinforcing bars on another side. For the reinforcing bars at the corners of the rectangular prism, both colored marker 1 and gray marker 1, as well as a colorless marker 1, will be used.

[0017] Drawing references 1 Marker 2. Convex part 3 recesses 4 Magnets 5 First Sheet 6. Second seat

Claims

1. A marker that can indicate direction at a construction site, The first sheet and The second sheet is laminated on the first sheet, The system comprises a magnet sandwiched between the first sheet and the second sheet, When viewed from a direction perpendicular to the stacking direction, It has a polygonal shape with upper and lower sides that are parallel to each other, A marker having a protrusion formed by an outward-sloping edge at its left end.

2. The marker according to claim 1, wherein the right end has a recess formed by an inwardly sloping edge.

3. The marker according to claim 1, wherein the first sheet and the second sheet are each composed of a surface sheet portion and a resin portion for providing thickness, and the surface sheet portion has a fluorescent color.

Images