Marking gauge

Abstract

To provide a marking gauge capable of simultaneously performing specification of a center point and marking of a cross line in a wide range by one operation.SOLUTION: The present invention for solving the above problem is a marking gauge X including a flat plate-shaped substrate portion 1 and a through-hole penetrating the substrate portion 1 in a thickness direction, wherein the through-hole includes a center hole 2 provided at a substantially 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, and the substrate portion 1 has a scale 4 with reference to the center hole 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a marking gauge that can easily mark drilling positions on a variety of objects. [Background technology]

[0002] From large-scale construction to hobby crafts, the task of scribing is extremely important in terms of ensuring the strength and finish of the finished product. Centering is often required for scribing, and the task of identifying the center point for drilling holes in particular can vary in accuracy depending on the surface texture of the object and the skill of the worker, making it difficult even for experienced workers. To prevent variations in scribing accuracy due to these circumstances, various scribing tools have been developed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5788617 Summary of the Invention [Problem to be solved by the invention]

[0004] The measuring tool described in Patent Document 1 has a hole in the center of a transparent or translucent base, with graduations aligned with the hole and notches along the edges. It is disclosed that this makes it possible to mark a center point, including a hole drilling position, or a crosshair marker identifying the center point at a desired location on an object. However, when marking both the center point and the crosshair marker, the measuring tool must be shifted and used as a ruler, and this switching of work processes can result in marking errors. Furthermore, drilling holes in objects is typically performed with a drill, which generates a large amount of chips. If the marking area is small, the marking line becomes invisible halfway through, leading to issues such as the drill position being misaligned.

[0005] In view of the above-mentioned problems, an object of the present invention is to provide a marking gauge that can simultaneously identify a center point and mark a wide area with cross lines in a single operation. [Means for solving the problem]

[0006] The present invention, which solves the above problem, is a marking gauge comprising a flat substrate portion and a through hole penetrating the substrate portion in the thickness direction, the through hole including a central hole provided at approximately the center of the substrate portion and a plurality of enlarged elongated holes having a length direction extending away from the central hole, and the substrate portion has a scale based on the central hole. With this configuration, it is possible to simultaneously identify the center point and mark a wide area with crosshairs in one operation.

[0007] In a preferred embodiment of the present invention, the substrate portion is capable of transmitting light in the thickness direction. This configuration allows the marking gauge to be used in a variety of conditions while still allowing the marking area on the object to be visually recognized.

[0008] In a preferred embodiment of the present invention, the substrate portion is flexible. With this configuration, it is possible to easily mark the surface of an object even if the surface is not smooth.

[0009] In a preferred embodiment of the present invention, the shape of the substrate portion in the planar direction is determined to conform to the dimensions of a standardized card. This configuration allows it to be stored in a variety of storage devices and is easy to carry.

[0010] In a preferred embodiment of the present invention, the scale has at least one of a grid pattern and an arc pattern. This configuration makes it possible to accommodate marking under a variety of conditions. [Effects of the Invention]

[0011] The present invention, which solves the above-mentioned problems, provides a marking gauge that can simultaneously identify a center point and mark a wide area with cross lines in a single operation. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is an explanatory diagram showing a configuration of a marking gauge according to an embodiment of the present invention. FIG. [Figure 2] 1 is an explanatory diagram showing an example of a state in which a marking gauge according to an embodiment of the present invention is used; [Figure 3] 1 is an explanatory diagram showing an example of a state in which a marking gauge according to an embodiment of the present invention is used; [Figure 4] 1 is an explanatory diagram showing an example of a state in which a marking gauge according to an embodiment of the present invention is used; [Figure 5] 10A and 10B are explanatory diagrams showing modified examples of the configuration of the marking gauge according to the embodiment of the present invention. DETAILED DESCRIPTION OF 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 be made in detail in the order of the configuration of the embodiment, the method of implementation, and other examples. The following embodiment is an example of the present invention, and the present invention is not limited to the following embodiment.

[0014] <Embodiment> The marking gauge X of this embodiment is a measuring tool and marking tool (writing aid) having a base portion 1, a central hole 2, an enlarged elongated hole 3, and a scale 4, as shown in FIG. 1, and is used by being applied to a desired position on an object T, as shown in FIGS. 2 and 3.

[0015] The substrate 1 is a flat member that forms the base of the marking gauge X, and is preferably substantially rectangular, particularly rectangular with rounded corners, as shown in FIG. 1. The substrate 1 is also transparent or translucent, allowing light to pass through in the thickness direction. This configuration allows the position of the target T to which the marking gauge X is attached to be seen through the substrate, eliminating the need for the user to move their eyes during work, thereby improving work efficiency and reducing the risk of errors due to increased man-hours.

[0016] The substrate 1 is flexible enough to be easily bent by hand and not easily broken. This configuration allows it to be used even when the surface of the object T to which the marking gauge X is to be applied is not smooth. For example, the object T to be marked is not limited to a material processed with a certain degree of precision, but may also have a curved surface, so the substrate 1 can be bent to follow the curve and mark easily.

[0017] The central hole 2 is provided at approximately the center in the surface direction of the substrate portion 1, and is a through-hole that penetrates in the thickness direction, making it possible to mark a center point on the object T. The size of the central hole 2 is preferably the minimum size that allows the tip of a marking tool to pass through, and in the example shown in Fig. 1, it has a circular cross section with a diameter of approximately 1 mm.

[0018] The enlarged slots 3 are elongated holes (through holes) spaced a predetermined distance from the center hole 2 and extending in a direction away from the center hole 2. A plurality of the enlarged slots 3 are provided radially from the center hole 2. In particular, in this embodiment, as shown in FIG. 1 , a total of four enlarged slots 3 are provided in four directions in a cross shape centered on the center hole 2. This allows easy marking of cross-shaped auxiliary lines (center lines) with the center point at their intersection, which is common in markings that determine a center point. The width of the enlarged slots 3 is approximately constant and is the minimum size that allows the tip of a marking tool to penetrate through it. In the example shown in FIG. 1 , the width is approximately 1 mm. Furthermore, the edges of the enlarged slots 3 are rounded to prevent corners. This reduces the likelihood of the substrate portion 1 breaking at the edges of the enlarged slots 3.

[0019] As shown in Fig. 1, each of the multiple (particularly four) enlarged slots 3 has a length direction parallel to each side of the base portion 1, and is preferably configured to be rotationally symmetrical at 90 or 180 degrees around the center hole 2. This configuration makes the enlarged slots 3 easy to see even if they are narrow, and creates multiple situations in which the arrangement of the enlarged slots 3 is the same regardless of the direction in which the marking gauge X is directed toward the object T, improving the flexibility of the marking work.

[0020] As an example according to this embodiment, it is preferable that the length of the enlarged slot 3 is such that the end closest to the central hole 2 is located a few millimeters away from the central hole 2, and the end farthest from the central hole 2 is located a distance of 10% to 20% of the length of the long side or short side inward from the outer edge in the planar direction of the base portion 1. This configuration provides the length of the enlarged slot 3, i.e., the length that can be used to mark with a marking tool, and also maintains the strength of the base portion 1 so that it will not deform or break.

[0021] The scale 4 is a mark for measuring dimensions or positioning, provided over substantially the entire surface of the substrate portion 1, and includes a measurement scale 41, a grid scale 42, and an arc scale 43. The scale 4 is provided with the center hole 2 as a reference, thereby clarifying the positional relationship between the shape of the object T and the center point that is the target of marking.

[0022] The various scales 4 may have any configuration as long as sufficient positioning accuracy is obtained, and in the example shown in Fig. 1, they are printed on the surface of the substrate 1. With such a configuration, the marking gauge X can be manufactured cheaply and easily, and the appearance of the scales 4 can also be easily changed depending on the conditions of use.

[0023] The measurement scale 41 is a scale provided along the outer edge of the substrate part 1, at least along one long side on the surface of the substrate part 1, and takes the form of a ruler. 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 mark or reference line provided over substantially the entire surface of the substrate portion 1, and is provided perpendicular or parallel to the measurement scale 41 and / or the enlarged slot 3. As a result, the grid scale 42 serves as a mark when applying the marking gauge X to the sides or corners of the object T. As shown in FIG. 1, the grid scale 42 is generally provided at equal intervals in each direction, but some of the marks may be omitted near the central hole 2 or the enlarged slot 3, and a configuration in which only the scale lines intersecting with the enlarged slot 3 are drawn is particularly preferable. With this configuration, it is possible to provide multiple types of marks while improving the visibility of the central hole 2 and the enlarged slot 3.

[0025] The arc scale 43 is an arc-shaped mark that is provided concentrically from the center point of the central hole 2, and makes it possible to identify the center position of various round marks (including those for holes) that have been marked in advance separately from the marking gauge X. It can also indicate the size of the hole to be drilled after marking and the approximate length to be marked with the enlarged elongated hole 3. In addition, in the example shown in Figure 1, the grid scale 42 is not drawn in the range where the arc scale 43 is drawn. This configuration makes each scale line easy to see and prevents misreading of the various scales 4 during work.

[0026] The present invention may have the following configurations. However, the following configurations are merely examples, and the presence or absence of the configurations can be determined arbitrarily unless otherwise specified.

[0027] <Example of change> As shown in FIG. 1, the marking gauge X may have a secondary hole 5. The secondary hole 5 is a through hole that is provided from the central hole 2 in a direction away from the enlarged elongated hole 3, and, like the central hole 2, its size is preferably the minimum size that allows the tip of a marking tool to pass through. Also, it is preferable that a plurality of secondary holes 5 are provided in a straight line away from the central hole 2. With this configuration, the central hole 2 and one secondary hole 5 can be used simultaneously to create a jig that can easily draw an arc.

[0028] When the scale 4 is provided by printing or the like, its color is determined by the color of the substrate 1 or the color of the object T on which it is intended to be used. If the substrate 1 or the object T is colorless, transparent, or light-colored, a low-brightness color for the scale 4 is suitable, and if the substrate 1 or the object T is dark-colored, a high-brightness color for the scale 4 is suitable. With this configuration, it is possible to use marking gauges X with different colored scales 4 according to the conditions of use. Note that the color and brightness of the scale 4 here are preferably determined based on common color standards, including color codes, the RGB color system, the Munsell color system, etc.

[0029] The size and thickness of the substrate portion 1 in the surface direction are preferably determined based on the dimensions of a standardized card. The standard here refers to the size of cards that are generally expected to be carried around and used, such as financial cards (including credit cards, cash cards, etc.), IC cards (including transportation cards, etc.), business cards, and identification cards (including health insurance cards, employee ID cards, etc.). With this configuration, the marking gauge X can be stored in various storage devices and easily carried around, increasing the number of situations in which it can be used, not just as a tool.

[0030] The central hole 2 does not have to be a small circular hole, but may be a cross-shaped opening formed by two long holes that intersect at the center, as shown in Figure 5. In this case, the central hole 2 is configured to be a cross with two long holes, each about 10 mm long and 1 mm wide, that intersect at right angles at the midpoint of their length, and the enlarged long holes 3 are provided on the extensions of each branch of the cross of the central hole 2, spaced a few mm apart from the central hole 2. With this configuration, a cross line can be scribed at the center point, improving the visibility of the center point.

[0031] Hereinafter, a method for carrying out the present invention will be described in detail with reference to the drawings. The ...

[0032] <<Implementation Method>> As shown in Figure 2, the user positions the center hole 2 by placing the marking gauge X near a side or corner of the object T. At this time, the position of the marking gauge X is determined by aligning the side of the base part 1 or the grid scale 42 with the side or corner of the object T. This allows the positioning of the center point, which previously required measurement twice with a carpenter's ruler (in two linearly independent directions), to be completed in a single operation.

[0033] Next, the user fixes the marking gauge X at the desired position so that it does not move, aligns the tip of the punch P with the center hole 2, and passes it through to mark the center point on the object T. The user also passes the tip of a writing implement M containing ink or pigment through the enlarged elongated holes 3 in each direction, and traces the enlarged elongated holes 3 in the lengthwise direction to draw a center line on the object T.

[0034] In a similar manner to the above, the user can also use the marking gauge X on an upright surface as shown in Figure 3. Depending on the size of the marking gauge X, it can also be used on the interior corners of the object T.

[0035] In addition to the above-described usage method, the user can also use the marking gauge X on an object T on which a simple score has already been drawn, as shown in Figure 4. In this case, the user aligns the center hole 2 with the intersection of a cross or a circle drawn in advance, aims the marking gauge X at the intersection, drives the punch P into the hole, and, if necessary, adds an auxiliary line with a writing implement M through the enlarged slot 3. This allows for more accurate marking of the hole's center than when simply drawing a score. Furthermore, when drilling holes using a conventional drilling device (such as a drill), shavings accumulate around the hole, making the auxiliary line difficult to see. Therefore, by enlarging the auxiliary line to the size of the enlarged slot 3, misalignment of the device during drilling can be prevented. This usage method allows the marking gauge X to be used for marking positions on walls and floors that do not have adjacent sides or corners.

[0036] In addition to the above-mentioned usage, 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. Board 2 center hole 3 Enlarged slot 4 scales 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 includes a central hole provided at approximately the center of the substrate portion and a plurality of enlarged elongated holes having a length direction directed away from the central hole, The base portion has a scale with the center hole as a reference.

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

2. The marking gauge according to claim 1.

3. The substrate portion is flexible.

2. The marking gauge according to claim 1.

4. The shape of the substrate in the surface direction is determined according to the dimensions of a standardized card.

2. The marking gauge according to claim 1.

5. The scale includes at least one of a grid shape and an arc shape.

2. The marking gauge according to claim 1.

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