Marking gauge

Abstract

An object of the present invention is to provide a marking gauge that can simultaneously identify a center point and draw a wide crosshair grid in a single operation. 【Means for Solving the Problem】The marking gauge X of the present invention for solving the above problems includes a flat substrate portion 1 and a through hole that penetrates the substrate portion 1 in the thickness direction. The through hole includes a center hole 2 provided substantially at the center of the substrate portion 1 and a plurality of enlarged long holes 3 having a length direction in a direction away from the center hole 2. The substrate portion 1 has a scale 4 based on the center hole 2.

Description

Technical Field

[0001] The present invention relates to a marking gauge capable of easily scribing a drilling position on various objects.

Background Art

[0002] From large-scale buildings to handicrafts as a hobby, the scribing work is very important from the viewpoints of ensuring the strength and the degree of completion of the product. Center marking is often assumed in this scribing. Especially in the work of specifying the center point for drilling, the accuracy is likely to vary depending on the surface properties of the object and the skill of the operator, and in some cases, it is difficult even for a skilled person. To prevent the variation in scribing accuracy due to such circumstances, various scribing tools have been developed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The measuring tool described in Patent Document 1 has a hole provided in the center of a transparent or translucent base, and further has a scale corresponding to the hole and notches along the sides. Thereby, it is disclosed that it is possible to scribe a center point including a drilling position or a crosshair mark for specifying a center point by aligning it with a desired position of an object. However, when scribing both the center point and the crosshair, it is necessary to shift the once-aligned measuring tool and use it as a ruler, which may cause an error in scribing due to the switching of this work process. In addition, the work of making a hole (opening) in an object is generally performed with a drill, so a large amount of chips are generated. If the scribing range is small, the scribing line cannot be visually recognized halfway, and there are also problems such as the position of the drill shifting.

[0005] In view of the above problems, an object of the present invention is to provide a marking gauge capable of simultaneously specifying a center point and drawing a wide crosshair grid in a single operation.

Means for Solving the Problems

[0006] The invention of the present application for solving the above problems is a marking gauge including a flat substrate portion and a through hole penetrating the substrate portion in the thickness direction, wherein the through hole includes a center hole provided substantially at the center of the substrate portion and a plurality of enlarged elongated holes having a length direction in a direction away from the center hole, and the substrate portion has graduations based on the center hole. With such a configuration, it is possible to simultaneously specify a center point and draw a wide crosshair grid in a single operation.

[0007] In a preferred form of the present invention, the substrate portion is transmissive to light in the thickness direction. With such a configuration, the marking gauge can be used in various conditions while the ruled area of the object can be visually recognized.

[0008] In a preferred form of the present invention, the substrate portion has flexibility. With such a configuration, even when the surface of the object is not smooth, it is possible to easily draw a grid.

[0009] In a preferred form of the present invention, the shape of the substrate portion in the plane direction is defined as the dimensions of a standardized card. With such a configuration, it can be stored in various storage tools and can be easily carried around.

[0010] In a preferred form of the present invention, the graduations include at least one of a grid pattern and an arc pattern. With such a configuration, it is possible to cope with grid drawing under various conditions.

Effects of the Invention

[0011] The present invention for solving the above problems provides a marking gauge that can simultaneously specify a center point and draw a wide crosshair grid in a single operation.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0013] Hereinafter, a marking gauge X according to an embodiment of the present invention will be described with reference to the drawings. The description will detail the configuration of the embodiment, the method of implementation, and other examples in this order. Note that the following embodiments are examples of the present invention, and the present invention is not limited to the following embodiments.

[0014] ≪Embodiment≫ As shown in FIG. 1, the marking gauge X according to the present embodiment is a measuring tool and grid drawing tool (note-taking aid) having a substrate portion 1, a center hole 2, an enlarged long hole 3, and graduations 4, and as shown in FIGS. 2 and 3, it is used by being applied to a desired position of an object T.

[0015] The substrate portion 1 is a flat member that forms the body of the marking gauge X. As shown in FIG. 1, it preferably has a substantially rectangular shape, particularly a rectangular shape with rounded corners. Further, the substrate portion 1 is capable of transmitting light in the thickness direction, that is, it is transparent or translucent. With such a configuration, the position of the object T to which the marking gauge X is applied can be visually recognized through transmission, and the user does not need to move their line of sight during work, thereby improving work efficiency and reducing the risk of errors due to an increase in man-hours.

[0016] The substrate portion 1 can be easily bent by hand and has flexibility such that it is difficult to break. With such a configuration, it can cope even when the surface of the object T to which the marking gauge X is applied is not smooth. For example, the object T for which grid lines are to be drawn is not limited to a member processed with a certain degree of accuracy, and may be a curved surface. Therefore, the substrate portion 1 can be bent to follow and grid lines can be easily drawn.

[0017] The center hole 2 is a through hole provided substantially at the center in the plane direction of the substrate portion 1 and penetrating in the thickness direction, enabling the drawing of a center point on the object T. The size of the center hole 2 is preferably the minimum size through which the tip portion of the tool for drawing grid lines can pass. In the example shown in FIG. 1, it has a circular cross-section with a diameter of about 1 mm.

[0018] The enlarged long holes 3 are provided at a predetermined interval from the center hole 2 and are long holes (through holes) having a length direction in a direction away from the center hole 2, and a plurality of them are provided radially from the center hole 2. In particular, in the present embodiment, as shown in FIG. 1, a total of four enlarged long holes 3 are provided in four directions in a cross shape centered on the center hole 2. Thereby, it is possible to easily draw a cross-shaped auxiliary line (center line) having the center point as an intersection, which is common in drawing grid lines to determine the center point. Further, the width of the enlarged long hole 3 is substantially constant at the minimum size through which the tip portion of the tool for drawing grid lines can pass. In the example shown in FIG. 1, its width is about 1 mm. Furthermore, the ends of the enlarged long holes 3 are rounded so as not to form corners. This makes it difficult for the substrate portion 1 to break from the ends of the enlarged long holes 3.

[0019] Each of the plurality (specifically four) of enlarged long holes 3 is configured to have a length direction in a direction parallel to each side of the substrate portion 1 as shown in FIG. 1, and is preferably configured to be rotationally symmetric every 90 degrees or 180 degrees about the center hole 2. With such a configuration, even if the width of the enlarged long hole 3 is narrow, it is easy to visually recognize, and a plurality of states in which the arrangement of the enlarged long holes 3 is the same regardless of the direction in which the marking gauge X is applied to the object T can be obtained, and the degree of freedom in work in grid drawing can be improved.

[0020] As an example according to this embodiment, the length of the enlarged long hole 3 is such that the end portion closer to the center hole 2 is located at a position separated from the center hole 2 by about several millimeters, and the end portion farthest from the center hole 2 is inside by a distance of 10% or more and 20% or less of the length of the long side or short side from the outer edge in the plane direction of the substrate portion 1. With such a configuration, the length of the enlarged long hole 3, that is, the length that can be used for grid drawing with a tool for grid drawing can be provided, and the strength that can prevent the substrate portion 1 from being deformed or broken can be maintained.

[0021] The scale 4 is a mark for dimension measurement or positioning provided substantially over the entire surface of the substrate portion 1, and includes a measurement scale 41, a grid scale 42, and an arc scale 43. Further, the scale 4 is configured to be provided based on the center hole 2, thereby clarifying the positional relationship between the shape of the object T and the center point for grid drawing.

[0022] Each type of scale 4 may have any configuration as long as sufficient positioning accuracy can be obtained. In particular, in the example shown in FIG. 1, it is configured to be printed on the surface of the substrate portion 1. With such a configuration, the marking gauge X can be manufactured inexpensively and easily, and the aspect of the scale 4 can be easily changed depending on the usage conditions.

[0023] The measurement scale 41 is a scale provided along the outer edge of the substrate portion 1, at least along one long side on the surface of the substrate portion 1, and forms a form of a measuring tool. Further, as shown in FIG. 1, the measurement scale 41 has scale lines extended every 5 mm or every 10 mm and is continuous with the grid scale 42.

[0024] The grid scale 42 is a grid-like marking or reference line provided substantially over the entire surface of the substrate portion 1, and is provided perpendicular or parallel to the measurement scale 41 and / or the enlarged long hole 3. Thereby, the grid scale 42 serves as a marking when the marking gauge X is applied to the sides or corners of the object T. Also, as shown in FIG. 1, the grid scale 42 is generally provided at equal intervals in each direction, but a part thereof may be omitted in the portion close to the center hole 2 or the enlarged long hole 3, and it is particularly preferable that only the scale line intersecting the enlarged long hole 3 is drawn. With such a configuration, while having a plurality of types of markings, on the other hand, the visibility of the center hole 2 and the enlarged long hole 3 can be improved.

[0025] The arc scale 43 is an arc-shaped marking provided concentrically from the center point of the center hole 2, and enables the identification of the center point position with respect to various round marks (including those for holes) previously ruled separately from the marking gauge X. It is also possible to indicate the size of the hole to be opened after ruling and the standard for the length to be ruled with the enlarged long hole 3. In addition, in the example shown in FIG. 1, in the range where the arc scale 43 is drawn, the grid scale 42 is not drawn. With such a configuration, each scale line becomes easier to see, and misreading of the various scales 4 during work can be prevented.

[0026] The present invention may have the following configuration. However, the following configuration is merely an example, and its presence or absence can be arbitrarily determined unless there is a specific subordinate designation.

[0027] <<Modification Example>> As shown in FIG. 1, the marking gauge X may include a secondary hole 5. The secondary hole 5 is a through hole provided in the direction in which the enlarged long hole 3 is not provided starting from the center hole 2, and its size is preferably the minimum size through which the tip of the ruling tool can pass, similar to the center hole 2. Also, it is preferable that a plurality of secondary holes 5 are provided in a straight line away from the center hole 2. With such a configuration, by using the center hole 2 and one secondary hole 5 simultaneously, it is possible to simply make a jig for drawing an arc.

[0028] When the scale 4 is provided by printing or the like, its color is determined by the color of the substrate portion 1 or the color of the object T for which use is assumed. When the substrate portion 1 or the object T is colorless and transparent or light in color, a color with a low brightness is suitable for the scale 4. When the substrate portion 1 or the object T is dark in color, a color with a high brightness is suitable for the scale 4. With such a configuration, it is possible to selectively use the marking gauges X having different colors of the scale 4 according to the usage conditions. Note that it is preferable that the color and brightness of the scale 4 here are determined based on general color display standards including color codes, RGB color systems, Munsell color systems, etc.

[0029] It is preferable that the size and thickness of the substrate portion 1 in the plane direction are determined based on the dimensions of a standardized card. The standards here are the sizes of cards that are generally assumed to be carried and used, and examples include financial cards (including credit cards, cash cards, etc.), IC cards (including transportation systems, etc.), business cards, identity certificates (including health insurance cards, employee cards, etc.). With such a configuration, not only as a tool, but also the marking gauge X can be stored in various storage tools, easily carried, and the number of usable scenes can be increased.

[0030] The central hole 2 may not be a circular small hole, but may be a cross-shaped opening formed by two long holes intersecting at the central position as shown in FIG. 5. In this case, for example, the central hole 2 is composed of two long holes with a length of about 10 mm and a width of about 1 mm, which are in a cross shape orthogonal at the midpoint of each length direction. The enlarged long hole 3 is provided on the extension line of each branch of the cross of the central hole 2, with a distance of about several millimeters from the central hole 2. With such a configuration, a cross line can be ruled at the center point portion, and the visibility of the center point is improved.

[0031] Hereinafter, the method for implementing the present invention will be described in detail with reference to the drawings. Also, the method for implementation shown below is an example, and the method for implementation is not limited thereto, and the order may be reversed.

[0032] ≪Method for Implementation≫ As shown in FIG. 2, the user applies the marking gauge X near the side or corner of the object T to position the center hole 2. At this time, the side of the substrate portion 1 or the grid scale 42 is aligned with the side or corner of the object T to determine the arrangement of the marking gauge X. Thereby, the positioning of the center point that previously required two measurements (two mutually primary independent directions) with a square can be completed in a single operation.

[0033] Subsequently, the user fixes the marking gauge X applied to the desired position so as not to move it, inserts the tip of the punch P through the center hole 2, and makes a mark of the center point on the object T. Further, the user inserts the tip of the writing instrument M containing ink or pigment etc. through the elongated holes 3 in each direction, and traces along the length direction of the elongated holes 3 to draw a center line on the object T.

[0034] In the same manner as above, the user can also use the marking gauge X by applying it to the standing surface as shown in FIG. 3. Also, depending on the size of the marking gauge X, it can be used for the inner corners of the object T.

[0035] In addition to the above usage method, as shown in FIG. 4, the user can also use the marking gauge X for an object T that already has a simple grid drawn on it. At this time, the user aligns the center hole 2 with the intersection of the pre-drawn cross or the circular enclosure, applies the marking gauge X, drives the punch P there, and adds auxiliary lines with the writing instrument M through the elongated holes 3 as needed. Thereby, it is possible to surely mark the center of the hole more reliably than in the case of only a simple grid. Also, when performing a drilling operation using a general drilling device (drill etc.), chips accumulate around the hole and the auxiliary lines become difficult to see, so by expanding the auxiliary lines by the amount of the elongated holes 3, it is possible to suppress the displacement of the device during the drilling operation. By this usage method, the marking gauge X can also be applied to the grid positions on the wall surface and floor surface where the sides and corners are not close.

[0036] In addition to the above usage method, the user can easily carry the marking gauge X and use it as a simple measuring tool such as a ruler.

Explanation of Symbols

[0037] X Marking Gauge 1 Substrate Part 2 Center Hole 3 Enlarged Long Hole 4 Scale 41 Measuring Scale 42 Grid Scale 43 Arc Scale 5 Secondary Hole M Writing Instrument P Punch T Object

Claims

1. A marking gauge comprising a flat substrate portion and a through hole penetrating the substrate portion in a thickness direction, the through hole being capable of being penetrating a tip of a writing implement to perform marking, the through hole includes a central hole provided at approximately the center of the substrate portion, enabling a central position of a hole of an object to be determined, and enlarged elongated holes spaced apart from the central hole and arranged along two straight lines perpendicular to each other in a cross shape at the position of the central hole; the substrate portion is provided with a scale indicating a distance from the position of the central hole, The scale includes a grid scale arranged in a grid pattern surrounding the central hole, A marking gauge, wherein the lattice scale is provided parallel or perpendicular to the enlarged slot in addition to the two straight lines.

2. The substrate portion is capable of transmitting light in the thickness direction.

2. The marking gauge of claim 1.

3. The substrate portion is flexible.

2. The marking gauge of claim 1.

4. the scale includes an arc scale provided in an arc shape centered on the position of the central hole, The arc scale is provided in a concentric arc shape and indicates a distance from the position of the center hole.

2. The marking gauge of claim 1.

5. The central hole is either circular or cross-shaped intersecting at approximately the center of the substrate portion.

2. The marking gauge of claim 1.

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