Marking aids

Abstract

To provide a marking auxiliary tool that allows one person to easily mark out work and improves work efficiency and accuracy. [Solution] The marking aid 1 of the present invention comprises a support rod 10 whose base end 11 can be brought into contact with the worker's body, and a positioning member 20 attached to the tip end 12 of the support rod 10, and is characterized in that the positioning member 20 has a straight fixed edge 22 that can support the ink thread A2 on the construction surface.

Description

[Technical Field]

[0001] The present invention relates to a marking aid, and more particularly to a marking aid that allows one person to easily perform marking and improves work efficiency and work accuracy. [Background technology]

[0002] At construction sites for architectural and civil engineering works, marking out information from design drawings at the actual construction site by using ink to mark lines and dimensions on the ground, walls, pillars, etc. is called marking out work (hereinafter referred to as "marking out"). Marking out is an important task in terms of maintaining construction quality, improving construction efficiency, and improving construction accuracy, and is carried out in all processes, including site surveying, foundation work, framework work, finishing work, piping work, and electrical work. For marking, a marking device is used that has a main body with a built-in ink pot, an ink thread that can be pulled out from the main body through the ink pot, and a marker attached to the tip of the ink thread. In detail, the needle of the marker is fixed at one point on the work surface, and the main body of the device is placed at another point on the work surface, and by pulling up and flicking the ink thread with a finger, a reference line for construction is drawn between the two points using the ink that has soaked into the ink thread. Patent Documents 1 to 3 disclose ink thread fixing jigs that can fix points by locking a karko and using the load of the jig. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-34568 [Patent Document 2] Japanese Patent Application Publication No. 09-094777 [Patent Document 3] Japanese Utility Model Application Publication No. 61-50681 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional technology has the following problems. <1> When marking out on a concrete surface, it is not possible to fix the karco with a needle like in wooden construction and work alone, so it has to be done in pairs with a matching number, which makes work inefficient and increases work costs. <2> It is particularly difficult to fix the ink thread to the corner without shifting it when marking vertically, etc. For this reason, it is difficult to ensure work quality in recent years, when the number of skilled workers is decreasing due to the aging population. <3> When working alone, the worker is forced to adopt an unnatural posture, with his or her arms and legs spread apart and two points fixed on the thread while flicking the ink thread with one hand, which places a great physical strain on the worker. <4> The ink thread fixing jigs of Patent Documents 1 to 3 are configured to hold the point down only with the weight of the jig, so when the ink thread is flicked, the jig is pulled by the ink thread, which makes it easy for the point to shift.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a marking aid that solves the above-mentioned problems of the prior art. [Means for solving the problem]

[0006] The marking aid of the present invention comprises a support rod whose base end can be brought into contact with the worker's body, and a positioning member attached to the tip of the support rod, and the positioning member has a straight fixed edge that can support the ink thread on the construction surface.

[0007] In the marking aid of the present invention, the positioning member may have two inclined surfaces connected at an acute angle, and a fixed edge may be formed between the two inclined surfaces.

[0008] The marking aid of the present invention may comprise a locking receiving member attached to the tip end side of the support rod, and the karuko of the marking device may be able to be locked to the locking receiving member.

[0009] In the marking aid of the present invention, the locking receiving member may have an insertion hole through which the support rod can be inserted and an locking hole through which a hook-shaped portion attached to the karco can be inserted.

[0010] The marking aid of the present invention may comprise a buffer belt that can be wrapped around the body of the worker, and the buffer belt may comprise a buffer portion that can abut against the base end of the support rod.

[0011] In the marking aid of the present invention, the base end of the support rod may be a spherical end having a spherical surface, and the buffer belt may have a bearing portion capable of rotatably holding the spherical end. [Effects of the Invention]

[0012] The marking aid of the present invention has at least one of the following effects due to the above-mentioned structure. <1> By placing the base end of the support rod against the body and using the positioning material attached to the tip to press and fix the marking line against the construction surface, one person can easily mark out without needing a number. This makes work more efficient and reduces costs. <2> By using the worker's weight to press the ink thread into the inside corner in a line with the fixed edge, inside corners, which are usually difficult to mark out, can be marked out accurately without the need for skill. <3> Work can be easily performed while standing, reducing the physical burden on workers. [Brief explanation of the drawings]

[0013] [Figure 1] Diagram of marking aid [Figure 2] Explanatory diagram of marking device [Figure 3] Illustration of the locking member [Figure 4] Illustration of how to use the marking aid [Figure 5] Explanatory diagram of Example 3 DETAILED DESCRIPTION OF THE INVENTION

[0014] The marking aid of the present invention will be described in detail below with reference to the drawings. In the present invention, the term "construction surface" means a surface on which a reference line is to be drawn with ink by marking. [Example]

[0015] <1> Marking aid (Figure 1) The marking auxiliary tool 1 of the present invention is a tool for assisting the marking work using the marking device A. The marking aid 1 comprises at least a support rod 10 and a positioning member 20 attached to the tip 12 of the support rod 10. In this example, it further comprises a locking member 30 attached to the tip 12 side of the support rod 10. The marking aid 1 fixes the marking thread A2 to the construction surface by placing the base end 11 of the support rod 10 against the worker's body and pressing the positioning material 20 against the construction surface, thereby assisting in marking.

[0016] <1.1> Marking device (Fig. 2) The marking device A is a device for marking. The marking device A comprises a device body A1 with a built-in ink pot, an ink thread A2 that can be drawn out from the device body A1 through the ink pot, and a carabiner A3 attached to the tip of the ink thread A2. In this example, the carabiner A3 is further provided with a hook-shaped part A4 such as a carabiner or a hook. Before use, the ink thread A2 is stored inside the device body A1, and the calco A3 is fixed to the tip of the device body A1. When in use, the ink thread A2 is pulled out from inside the device body A1 by pulling the calco A3. At this time, the ink in the ink pot adheres to the ink thread A2.

[0017] <2> Support rod The bearing rod 10 is a member for pressing the positioning material 20 against the construction surface. The support rod 10 has at least a base end 11 that contacts the body of the worker and a tip end 12 to which a positioning member 20 is attached. In this example, the support rod 10 further includes an extension mechanism 13, and the distal end 12 is configured to be extendable relative to the proximal end 11. In detail, the support rod 10 is made up of a combination of a cylindrical body on the base end 11 side and a rod-shaped body on the tip end 12 side, and the rod-shaped body is housed inside the cylindrical body, and a sleeve (expansion mechanism 13) provided on the tip end side of the cylindrical body is rotated around the axis, making it possible to adjust the length between the base end 11 and the tip end 12. Such an expansion mechanism is well known, for example as the structure of a jack-type tension rod, and will not be described in detail here.

[0018] <3> stereotactic material The positioning material 20 is a member that fixes the ink thread A2 to the construction surface. The positioning member 20 has at least a linear fixing edge 22 that can support the ink thread A2 on the construction surface. In this example, the positioning member 20 has two inclined surfaces 21 that connect at an acute angle, and a fixed edge 22 is formed between the two inclined surfaces 21. This configuration makes it easy to insert the positioning member 20 into the recessed corner where the wall surface and floor surface connect, making it easy to adjust the angle and fix the ink thread A2. However, the structure of the positioning member 20 is not limited to the above, and for example, the two inclined surfaces 21 may be connected at a right angle or an obtuse angle, or the positioning member 20 may not have an inclined surface 21. The key is that the positioning member 20 needs to have a linear fixed edge 22.

[0019] <4> Locking support (Fig. 3) The locking receiving member 30 is a member that locks and holds the karuko A3 of the marking device A. The locking member 30 is attached to the tip end 12 side of the support rod 10. In this example, a circular plate having an insertion hole 31 through which the support rod 10 can be inserted and a plurality of locking holes 32 is used as the locking receiving material 30. In detail, the insertion hole 31 corresponding to the outer diameter of the support rod 10 is provided in the center of the locking receiving material 30, and a plurality of locking holes 32 are arranged around the insertion hole 31. The locking hole 32 has a diameter and a shape that allows the hook portion A4 attached to the karuko A3 to be inserted therethrough to lock the karuko A3. However, the structure of the locking receiving material 30 is not limited to the above, and it may be, for example, a rectangular plate shape or a sleeve shape that is annularly attached to the support rod 10. Furthermore, the locking receiving material 30 is not an essential component of the marking aid 1, and for example, a needle of Calco A3 may be inserted into the positioning material 20 and fixed directly.

[0020] <5> How to use (Figure 4) The marking aid 1 is used, for example, as follows. The karuko A3 is pulled out from the device body A1 of the marking device A, and the hook-shaped part A4 attached to the karuko A3 is engaged with the engagement receiving member 30 of the marking auxiliary tool 1. The ink thread A2 near the karko A3 is placed on the fixed edge 22 of the positioning material 20, the base end 11 of the support rod 10 is placed against the body of the worker, and the positioning material 20 is pressed against the inside corner, thereby fixing the ink thread A2 to the first point of the inside corner. The device body A1 of the marking device A is held with one hand, the base end of the ink thread A2 is fixed to the second point on the construction surface, the ink thread A2 is stretched between the first point and the second point, and the middle part of the ink thread A2 is picked up with the fingers of the other hand and flicked toward the construction surface, thereby applying the ink of the ink thread A2 in a line to the construction surface. [Example]

[0021] [Example with buffer belt] In this example, the marking aid 1 includes a buffer belt 40 for protecting the body of the worker. The buffer belt 40 includes a belt portion 41 and a buffer portion 42. The belt portion 41 is, for example, a wide belt that can be wrapped around the body of a worker, and can be secured to the body of the worker by a hook-and-loop fastener, a belt buckle, or the like. The buffer portion 42 is a cushioning material provided on the belt portion 41, and is formed by, for example, adhering a rubber sheet or the like to the portion of the belt portion 41 that comes into contact with the worker's stomach. In this example, during marking work, the base end 11 of the support rod 10 is pressed against the buffer portion 42, which absorbs the impact on the body caused by the base end 11 coming into contact, thereby preventing bruising on the worker's body. [Example]

[0022] [Example in which the buffer belt has a bearing portion] In this example, the buffer belt 40 further includes a bearing portion 43 . In detail, the base end 11 of the support rod 10 is configured as a spherical end 11a with a spherical surface, and a concave bearing portion 43 capable of holding the spherical end 11a is attached to the buffer portion 42 of the buffer belt 40 (Figure 5). In this example, by holding the spherical end 11a within the bearing portion 43 of the buffer belt 40, the tip of the marking aid 1 can be rotated up, down, left, and right around the spherical end 11a. This makes it easier to operate the marking aid 1 and improves workability. [Explanation of symbols]

[0023] 1 Marking aids 10 Bearing rod 11 Proximal end 11a Ball end 12 Tip 13 Telescopic mechanism 20 Localization material 21 Slope 22 Fixed Edge 30 Locking receiving material 31 Insertion hole 32 Locking hole 40 Buffer belt 41 Belt section 42 Buffer section 43 Bearing section A Marking device A1 Device body A2 ink thread A3 Calco A4 hook

Claims

1. A marking aid for assisting marking work using a marking device equipped with a marking thread, a support rod whose base end can abut against the body of an operator; a positioning member attached to the tip of the support rod, The positioning material is characterized in that it has a linear fixed edge that can support the ink thread on the construction surface. Marking aid.

2. The positioning member has two inclined surfaces that are connected at an acute angle, The fixed side is formed between the two inclined surfaces. The marking aid according to claim 1.

3. A locking member is provided on the tip end side of the support rod, The locking receiving member can lock the karko of the marking device. The marking aid according to claim 1.

4. The locking member is an insertion hole through which the support rod can be inserted; and a locking hole through which a hook portion attached to the karuko can be inserted. The marking aid according to claim 3.

5. Equipped with a buffer belt that can be wrapped around the worker's body, The buffer belt has a buffer portion that can contact the base end of the support rod. The marking aid according to claim 1.

6. The base end of the bearing rod is a spherical end having a spherical surface, The buffer belt is characterized in that it has a bearing portion that can rotatably hold the spherical end. The marking aid according to claim 5.

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