Measuring fixtures

Abstract

This invention provides a measuring jig that allows for more efficient and accurate placement of prism means than conventional methods. [Solution] A measuring jig 1 used when measuring an object to be measured with an optical instrument, characterized in that it has: an outer corner side contact portion 12 having surfaces that contact both outer surfaces of the outer corner of the object to be measured; an outer corner top contact portion 14 that is perpendicular to the surfaces of the outer corner side contact portion 12 and contacts the top of the object to be measured; and a prism means installation portion 11 on which a prism means 20 can be installed on the extension of the line of intersection when the two surfaces of the outer corner side contact portion 12 are extended.

Description

Technical Field

[0001] The present invention relates to a measuring jig for arranging prism means, which is used when measuring the position information of a measurement object.

Background Art

[0002] Conventionally, when measuring the formed shape of a structure, a pin pole equipped with a prism (hereinafter referred to as a "prism pin pole") has been used, and the position information of the measurement object has been obtained by utilizing the reflection of light irradiated from a surveying instrument. The tip of the above prism pin pole has a pointed shape, and it is necessary to vertically stand it with the tip aligned with the measurement position.

[0003] However, depending on the shape and measurement position of the measurement object, it may be difficult to install the above prism pin pole at the measurement position. Therefore, for example, Patent Document 1 discloses an invention that enables measurement of the inner corner portion of a structure by using a "measurement body" as shown in FIG. 3 of the document. Further, Patent Document 2 discloses a surveying device that enables support of a prism pin pole at the inner corner portion and the outer corner portion of a structure.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] For example, in the case of concrete structures, the corners of external structures are often slightly chipped, and in such cases, the actual practice is to visually assess the chipped area, fill in the missing part, and measure using steel tape. Also, when measuring with a total station, if there is a chip in the corner of an external structure, it may be impossible to position the prism pin pole accurately, potentially making it impossible to accurately measure the finished shape.

[0006] Therefore, in view of the above-mentioned problems, the present invention aims to provide a measuring jig that can arrange prism means more efficiently and accurately than conventional methods. [Means for solving the problem]

[0007] The invention relating to (1) is a measuring jig used when measuring an object to be measured with an optical instrument, characterized in that it comprises: an outer corner side contact portion having surfaces that contact both outer surfaces of the outer corner of the object to be measured; an outer corner top contact portion that is perpendicular to the surfaces of the outer corner side contact portion and contacts the top surface of the object to be measured; and a prism means installation portion on which a prism means can be installed on the extension of the line of intersection when the two surfaces of the outer corner side contact portion are extended.

[0008] The invention relating to (2) is a measuring jig characterized by having a flat end side contact portion having a surface that abuts against the outer surface of the flat end of the object to be measured, and an end top contact portion perpendicular to the surface of the flat end side contact portion and abutting against the top of the object to be measured.

[0009] The invention relating to (3) is a measuring jig characterized in that the angle at which the surfaces of the corner side contact portions that contact both outer surfaces of the corner portion of the object to be measured face each other can be adjusted. [Effects of the Invention]

[0010] According to the present invention, it becomes possible to position prism means much more efficiently and accurately than in conventional methods at corners and edges of objects to be measured, where it is difficult to install prism means, thereby enabling highly accurate measurement of finished products and other aspects. [Brief explanation of the drawing]

[0011] [Figure 1] This is a side perspective view of a measuring jig in one embodiment of the present invention. [Figure 2] This is a front perspective view of a measuring jig according to one embodiment of the present invention. [Figure 3] This is a downward perspective view of a measuring jig in one embodiment of the present invention. [Figure 4] This is a plan view showing an example in which a measuring jig is placed at an external corner of an object to be measured, according to one embodiment of the present invention. [Figure 5] This is a perspective view showing an example in which a measuring jig is placed at an external corner of an object to be measured, according to one embodiment of the present invention. [Figure 6] This is an overhead perspective view showing an example in another embodiment of the present invention in which a measuring jig is placed at the end of the object to be measured. [Figure 7] This is a side perspective view showing an example in another embodiment of the present invention in which a measuring jig is placed at the end of the object to be measured. [Modes for carrying out the invention]

[0012] An embodiment of the measuring jig of the present invention will be described below with reference to the drawings. Note that the following description is limited to one embodiment, and the present invention is not limited to the following description.

[0013] Figures 1 to 3 show perspective views of the measuring jig 1 of this embodiment. That is, the measuring jig 1 is used when measuring an object to be measured using an optical instrument such as a total station. The jig is integrally constructed and comprises at least an outer corner side contact portion 12 having surfaces that contact both outer surfaces of the outer corner of the object to be measured, an outer corner top contact portion 14 that contacts the top of the object to be measured and is perpendicular to the surfaces of the outer corner side contact portion 12, and a prism means installation portion 11 on which a prism means 20 can be installed on the extension of the line of intersection when the two surfaces of the outer corner side contact portion 12 are extended.

[0014] More specifically, as shown in Figures 4 and 5, the measuring jig 1 of this embodiment can be installed on the outer corner of an object to be measured, such as a concrete structure. As shown in the lower perspective view of Figure 4, the measuring jig 1 has two outer corner contact parts 12 formed on the left and right sides, respectively, which can contact the outer surfaces of the outer corner of the object to be measured.

[0015] By bringing both outer surfaces of the corner of the object to be measured into contact with the corner side contact portion 12, it is possible to position the corner directly below the center of the prism means mounting portion 11. At this time, the corner top contact portion 14, which is formed perpendicular to the surface of the corner side contact portion 12, is configured to contact the top surface of the object to be measured, allowing the measuring jig 1 to be installed in the corner very stably.

[0016] Furthermore, as shown in Figures 1 to 3, the measuring jig 1 of this embodiment has a flat end side contact portion 13 having a surface that contacts the outer surface of the flat end of the object to be measured, and an end top contact portion 15 that is perpendicular to the surface of the flat end side contact portion 13 and contacts the top of the object to be measured.

[0017] More specifically, as shown in FIGS. 6 and 7, it is possible to install the measuring jig 1 of the present embodiment on the flat end portion of a measurement object such as a concrete structure. As shown in the figure, on one side surface of the measuring jig 1, flat end side contact portions 13 having surfaces that contact the outer surface of the flat end portion of the measurement object are formed at two locations on the left and right as shown in the figure.

[0018] By bringing the outer surface of the flat end portion of the measurement object into contact with the flat end side contact portion 13, it is possible to position the end corner portion in the central axis direction of the prism means installation portion 11. At this time, an end top contact portion 15 formed so as to be orthogonal to the surface of the flat end side contact portion 13 is configured to contact the top end of the measurement object, and the measuring jig 1 can be installed on the flat end portion very stably.

[0019] In the present embodiment, with one measuring jig 1, it is possible to arrange the prism means 20 extremely easily and accurately at the protruding corner portion as shown in FIG. 5 and the end corner portion as shown in FIG. 7. In particular, even when there are chips, dents, or chamfered portions formed at the protruding corner portion or the end corner portion of the measurement object, the prism means 20 can be arranged easily and accurately.

[0020] (Alternative Embodiment) Although one embodiment of the present invention has been described above, the present invention is not necessarily limited to the above-described embodiment.

[0021] [[ID=]] For example, in the above-described embodiment, one measuring jig 1 is configured to be able to arrange the prism means at the protruding corner portion and the end corner portion of the measurement object, serving two purposes with one unit. However, it is not necessarily limited to this, and it may be configured to be able to arrange the prism means 20 at either the protruding corner portion or the end corner portion.

[0022] Also, the material of the measuring jig 1 of the present invention is not particularly limited, and it can be made of resin or metal.

[0023] Furthermore, in the illustrated embodiment, the prism mounting section 11 is configured to allow the tip of the prism pin pole to be placed on it, as shown in Figure 1. However, it is not necessarily limited to this configuration, and for example, it may be configured to allow the prism to be directly mounted or fixed in a rotatable manner.

[0024] Furthermore, as shown in Figures 4 and 6, the measuring jig 1 of the embodiment described above can only be installed at a 90° corner, but the invention is not necessarily limited to this form.

[0025] For example, if the surfaces of the two corner side contact portions 12 are configured to be adjustable to any angle relative to each other, the measuring jig 1 can be installed even on corners with angles other than 90°. Although not shown in the diagram, this can be achieved by adjusting the angles at which the two corner side contact portions 12 face each other, using the center of the prism means installation portion 11 as the axis of rotation, so that the center of the prism means installation portion 11 is located on the extension of the line of intersection when the two surfaces of the corner side contact portions 12 are extended.

[0026] The scope of the present invention is defined by the claims rather than by the descriptions of the embodiments described above, and further includes all modifications within the meaning and scope of equivalence to the claims. In addition, the specific materials, dimensions, shapes, etc., described in the embodiments described above can be modified to the extent that they solve the problem of the present invention. [Explanation of symbols]

[0027] 1. Measuring jig 11 Prism means installation section 12 Corner side contact area 13 Flat end side contact part 14 Extruded corner top contact part 15 End top contact section 20 Prism means

Claims

1. A measuring jig used when measuring an object using an optical instrument, The corner side contact portion has surfaces that contact the outer surfaces of both corners of the object to be measured, A corner top end contact portion that is perpendicular to the surface of the corner side contact portion and contacts the top end of the object to be measured, The prism means installation section is provided, which allows the prism means to be installed on the extension of the line of intersection when the two surfaces of the corner side contact portion are extended. A measuring jig characterized by the following features.

2. A flat end side contact portion having a surface that contacts the outer surface of the flat end of the object to be measured, It has an end top contact portion that is perpendicular to the surface of the flat end side contact portion and contacts the top of the object to be measured. The measuring jig according to feature 1.

3. The angle at which the surfaces of the corner contact portions that abut against the outer surfaces of the corner of the object being measured are directed toward each other can be adjusted. The measuring jig according to feature 1 or 2.

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