Positioning jig and positioning method

Abstract

To provide a positioning jig and a positioning method, which enable more accurate and easy determination of a position for driving a rod.SOLUTION: A positioning jig of the present invention is used to determine a target position for driving a rod, and comprises a base, a support rod for supporting a position measurement prism, and a first holding part fixed to the base and configured to removably holds the support rod, where the first holding part holds the rod while the support rod is removed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a positioning jig and a positioning method. [Background technology]

[0002] At construction sites, surveying is carried out using a surveying instrument (total station) and a rod-shaped support rod equipped with a reflecting prism. In recent years, surveying instruments have been equipped with a tracking function that tracks the reflecting prism of the measurement target, making it possible for a worker to carry out the survey alone. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-132526 Summary of the Invention [Problem to be solved by the invention]

[0004] When using such a surveying device to center piles, the drawing is loaded into a device such as a smartphone or tablet in advance, and the worker can then hold a support rod equipped with a reflective prism and move around while looking at the drawing displayed on the device to determine the position to drive the pile core rod (rod body).

[0005] However, the worker must hold the support rod and determine the position to drive the pile core rod, then switch to the pile core rod and drive it in, which may result in the driving position being shifted.

[0006] The present invention has been made in view of the above circumstances, and aims to solve the following problems. Specifically, the present invention aims to provide a positioning jig and a positioning method that enable more accurate and simple determination of the position into which a rod is driven. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the positioning jig of the present invention is a positioning jig for determining the target position for driving a rod body, and comprises a base portion, a support rod that supports a position measurement prism, and a first holding portion that is fixed to the base portion and holds the support rod in a detachable manner, and the first holding portion holds the rod body with the support rod removed, thereby solving the problem.

[0008] In the positioning jig of the present invention, the support rod that supports the prism is attached to the first holding part, a survey is conducted to determine the target position for driving the rod body, and then the support rod is removed from the first holding part of the positioning jig and the rod body is attached to the first holding part, making it possible to more accurately and easily position the target position for driving the rod body.

[0009] In addition, in the positioning jig of the present invention, the first holding portion preferably has an opening, and the rod body held by the first holding portion may be removable from the first holding portion through the opening in a direction perpendicular to the longitudinal direction of the rod body. In the above configuration, after the rod body is held in the first holding part and a part of the rod body is driven into the target position, when the positioning jig is removed from the rod body, it can be removed in a direction perpendicular to the longitudinal direction of the rod body, so that the positioning jig can be easily removed from the rod body even if wire, rope, etc. is attached to the head tip of the rod body.

[0010] In the positioning jig of the present invention, the first holding portion preferably includes a magnet, and holds the support rod and the rod body by the magnetic force of the magnet. In the above configuration, the support rod and the rod body can be easily attached to and detached from the first holding portion.

[0011] The positioning jig of the present invention may also include a second holding part that holds a terminal that displays information related to the position of the prism and is fixed to the base part at a position separated from the first holding part. In the above configuration, the user does not need to hold the terminal separately from the support rod, eliminating the need to change hands, and thus improving work efficiency.

[0012] The positioning jig of the present invention may also be provided with a handle that is fixed to the base and that is gripped by the user.

[0013] In the positioning jig of the present invention, the base portion may be made of a flat plate. In the above configuration, the positioning jig can be placed in a self-supporting manner on the object (ground, etc.) into which the rod is to be driven.

[0014] In addition, the positioning method of the present invention may use the positioning jig to determine the target position for driving the rod body. [Effects of the Invention]

[0015] The positioning jig and positioning method of the present invention make it possible to more accurately and simply determine the position into which the rod is to be driven. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view schematically showing an example of a positioning jig of the present invention. [Figure 2] FIG. 2 is a right side view of the positioning jig shown in FIG. [Figure 3] FIG. 2 is a left side view of the positioning jig shown in FIG. [Figure 4] FIG. 2 is a top view of the positioning jig shown in FIG. [Figure 5] FIG. 2 is a diagram illustrating one of the components that constitute the positioning jig shown in FIG. [Figure 6] 1A to 1C are diagrams for explaining an example of a positioning method using the positioning jig of the present invention. [Figure 7] 1A to 1C are diagrams for explaining an example of a positioning method using the positioning jig of the present invention. [Figure 8] 1A to 1C are diagrams for explaining an example of a positioning method using the positioning jig of the present invention. [Figure 9] 1A to 1C are diagrams for explaining an example of a positioning method using the positioning jig of the present invention. [Figure 10]1A to 1C are diagrams for explaining an example of a positioning method using the positioning jig of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, each component is shown somewhat simplified and schematic to make the explanation easier to understand, and the dimensions of each component and the spacing between components shown in the figure may differ from the actual dimensions. Furthermore, unless otherwise specified, the position, orientation, and posture of each component described below are the position, orientation, and posture of each component when it is in use.

[0018] [Positioning jig] The configuration of a positioning jig according to the present invention will be described with reference to FIGS.

[0019] Fig. 1 is a perspective view conceptually showing an example of a positioning jig of the present invention, Fig. 2 is a right side view of the positioning jig shown in Fig. 1, Fig. 3 is a left side view of the positioning jig shown in Fig. 1, and Fig. 4 is a top view of the positioning jig shown in Fig. 1. Note that in Figs. 2 to 4, the prism attached to the support rod is not shown.

[0020] As shown in FIGS. 1 to 4, a positioning jig 10 of the present invention has a jig body 12 and a support rod 14.

[0021] <Jig body> The jig body 12 has a base portion 20 , a first holding portion 22 , a handle portion 24 , a second holding portion 26 , a magnet 28 , and a joining member 30 .

[0022] <<Base part>> 1, the base portion 20 is made of a flat plate, supports the first holding portion 22, the handle portion 24, etc., and allows the jig body 12 to stand on its own when placed on the ground, etc. In the example shown in Fig. 1, the shape of the base portion 20 in a plan view (when viewed from a direction perpendicular to the main surface) is approximately trapezoidal.

[0023] The shape of the base unit 20 in a plan view is not limited to a trapezoidal shape, and may be various shapes such as a rectangular shape, a triangular shape, a circular shape, an elliptical shape, or an irregular shape. The base unit 20 is not limited to a flat plate shape, and may have any shape that can support the first holding unit 22, the handle unit 24, etc., and that allows the base unit to stand on its own when placed on an installation surface such as the ground. For example, the base unit 20 may have multiple legs. The length and / or angle of the legs may be adjustable, and each of the multiple legs may have an independently adjustable length and / or angle. Adjusting the length and / or angle of the legs according to the shape of the installation surface allows the base unit to easily stand on its own.

[0024] Two plate members 21a and 21b for constituting the first holding portion 22 and the handle portion 24 are attached to one main surface (largest surface) of the base portion 20 via a joining member 30.

[0025] <<Plate member>> FIG. 5 is a diagram conceptually showing an example of the plate member 21. As shown in FIG. Plate members 21a and 21b are members for constituting first holding portion 22 and handle portion 24. Plate members 21a and 21b have the same configuration except for the length L shown in Fig. 5, and therefore will be collectively referred to as plate member 21 below unless there is a need to distinguish between them.

[0026] 5, plate member 21 is a plate-like member formed into an L-shape, and in a direction perpendicular to bending portion 23, an opening 24a having a substantially rectangular cross-sectional shape is provided at the end opposite bending portion 23. Furthermore, in the direction perpendicular to bending portion 23, plate member 21 has a width that changes stepwise in a direction parallel to bending portion 23, with the width on the opening 24a side being larger than the width on the bending portion 23 side.

[0027] If the length of plate member 21 in the direction perpendicular to bent portion 23 is L, plate member 21a and plate member 21b have different lengths L.

[0028] 1 and other figures, plate members 21a and 21b are stacked in a direction perpendicular to their main surfaces with their openings 24a aligned, and fixed to base portion 20. The stacked plate members 21a and 21b are arranged with their main surfaces perpendicular to the main surface of base portion 20. Furthermore, plate members 21a and 21b are arranged so that the direction perpendicular to bent portion 23 is parallel to the main surface of base portion 20. In other words, plate members 21a and 21b are arranged so that bent portion 23 is perpendicular to the main surface of base portion 20.

[0029] 1 and other examples, plate members 21a and 21b are fixed to base portion 20 using two joining members 30. Joint member 30 is a long member with an L-shaped cross section (a so-called L-shaped metal fitting), with portion 30a forming one side of the L shape contacting the main surface of base portion 20 and portion 30b forming the other side of the L shape contacting the main surface of plate member 21.

[0030] There are no particular limitations on the method of fixing the joining member 30 to the base portion 20, and the method of fixing the joining member 30 to the plate member 21, and known methods such as screwing, using fasteners such as bolts and nuts, welding, etc. can be used as appropriate.

[0031] <<First holding part>> As shown in FIG. 1 and other figures, the bent portions of the plate members 21a and 21b constitute the first holding portion 22.

[0032] The first holding portion 22 is a portion that detachably holds the support rod 14, and is also a portion that detachably holds the rod body (pile core rod) 60.

[0033] 1, first holding portion 22 has a groove-shaped portion extending in a direction perpendicular to the main surface of base portion 20, and has a substantially C-shaped cross section when viewed in a cross section perpendicular to the extending direction of the groove-shaped portion (hereinafter also referred to as the extending direction of first holding portion 22). Therefore, first holding portion 22 has opening 22a in a direction perpendicular to the extending direction.

[0034] 4, when viewed from a direction perpendicular to the main surface of the base portion 20, the first holding portion 22 is disposed outside the main surface of the base portion 20. As shown in FIG.

[0035] 1, the support rod 14 and / or rod body 60 is detachably held in the groove-shaped portion of the first holding part 22. At this time, the support rod 14 and / or rod body 60 is held so that its longitudinal direction is parallel to the extension direction of the first holding part 22. Therefore, the first holding part 22 holds the support rod 14 and / or rod body 60 in a state where its longitudinal direction is approximately perpendicular to the main surface of the base part 20.

[0036] Therefore, the width of the groove-shaped portion of the first holding portion 22 is approximately equal to the diameter of the support rod 14 and / or the rod body 60. In other words, the difference between the length L of the plate member 21a and the length L of the plate member 21b is approximately equal to the diameter of the support rod 14 and / or the rod body 60. For example, since the diameter of a pile core rod is approximately 6 mm to 15 mm, it is preferable that the width of the groove-shaped portion of the first holding portion 22 be approximately 6 mm to 18 mm.

[0037] Furthermore, the height of the groove-shaped portion of the first holding portion 22 (the length in the vertical direction in Figure 3) is preferably shorter than the length of the rod body 60, preferably 60 mm to 150 mm, and more preferably 90 mm to 120 mm, from the viewpoint of properly holding the support rod 14 and / or the rod body 60 and enabling the rod body 60 to be driven in.

[0038] In a preferred embodiment, the first holding portion 22 may have a magnet. In the example shown in Fig. 1 etc., the first holding portion 22 has four magnets 28 arranged in the extension direction of the first holding portion 22 on the back side of the groove-shaped portion that holds the support rod 14 and / or the rod body 60. This allows the first holding portion 22 to hold the support rod 14 and / or the rod body 60 by magnetic force as well, thereby enabling more secure holding.

[0039] <<Handle>> 1 and other figures, a portion of plate member 21a and plate member 21b surrounding opening 24a constitutes handle 24. Handle 24 is fixed to base 20 and is a portion to be gripped by the user.

[0040] 1, the portions of plate members 21a and 21b that surround opening 24a and are on the opposite side from first holding portion 22 form handle portion 24. Therefore, handle portion 24 extends in a direction perpendicular to the main surface of base portion 20.

[0041] The handle 24 may be covered with a cushioning material such as a rubber plate or cushion tape.

[0042] In addition, in the example shown in Figure 1 etc., the handle portion 24 is configured to extend in a direction perpendicular to the main surface of the base portion 20, but this is not limited to this, and the handle portion 24 may extend in a direction parallel to the main surface of the base portion 20, or may extend in a direction at a predetermined angle to the main surface of the base portion 20.

[0043] 1 and other examples, first holding portion 22 and handle portion 24 are formed by plate member 21a and plate member 21b, but this is not limited to this. Various configurations are possible as long as first holding portion 22 and handle portion 24 can respectively exhibit the above-mentioned functions. Furthermore, in the example shown in FIG. 1 and other examples, first holding portion 22 and handle portion 24 are configured to be integrally provided, but this is not limited to this, and first holding portion 22 and handle portion 24 may each be provided independently.

[0044] <<Second holding part>> The second holding unit 26 is a part that holds a terminal that displays information transmitted from a surveying instrument (total station) regarding the position of the prism 52. The second holding unit 26 is fixed to the base unit 20 at a position separated from the first holding unit 22.

[0045] 1 and other examples, second holding portion 26 is fixed with bolts to a position of plate members 21a and 21b between opening 24a and first holding portion 24. Also, in the example shown in Fig. 1 and other examples, second holding portion 26 is fixed so that its angle with respect to the main surface of base portion 20 is adjustable.

[0046] The second holding unit 26 has a shape that allows it to hold devices such as smartphones and tablets. As an example, in the example shown in Fig. 1 etc., the second holding unit 26 has a roughly rectangular box shape with one largest surface and one side surface open, and supports the back surface and three of the side surfaces of the device excluding the upper side surface. The back surface of the device is the surface opposite the display surface of the device, and the upper side surface is the upper side surface in the up-down direction when displayed on the display surface.

[0047] The shape of second holding portion 26 is not limited to the above configuration, and various configurations are available as long as the terminal can be held so that the display surface can be viewed by the user. For example, second holding portion 26 may hold the terminal by clamping the left and right sides of the terminal.

[0048] 1 and other examples, second holding portion 26 is configured to be disposed on the left side of plate members 21a and 21b as viewed by a user on handle portion 24 side, but this is not limited to this and second holding portion 26 may be disposed on the right side of plate members 21a and 21b. In the example shown in FIG. 1 and other examples, the position of second holding portion 26 can be changed.

[0049] Iron, steel, stainless steel, aluminum, various plastics, etc. can be appropriately used as materials for forming the base portion 20, the plate members 21a and 21b, and the joining members 30. From the viewpoints of weight reduction and strength, it is preferable to use aluminum.

[0050] <Support rod> The support rod 14 is a substantially cylindrical rod-shaped member that supports a prism (reflecting prism) 52 used when conducting surveys using a surveying instrument (total station). The support rod 14 has a diameter that is substantially the same as the diameter of the rod body (pile core rod) from one end (the lower end in FIG. 3) to a position midway in the longitudinal direction, and is provided with a male thread (not shown) for connecting the prism 52 from the other end (the upper end in FIG. 3) to a position midway in the longitudinal direction. The tip of the one end (the lower end in FIG. 3) is formed at an acute angle.

[0051] Furthermore, since the diameter of one end of the support rod 14 is approximately equal to the width of the groove-shaped portion of the first holding portion 22 of the jig body 12, as shown in Figure 1, one end of the support rod 14 is inserted into the groove-shaped portion of the first holding portion 22 and is removably held by the first holding portion 22.

[0052] In a preferred embodiment, the support rod 14 is made of a magnetic material such as iron, steel, or stainless steel such as SUS430. Therefore, when the first holding part 22 has a magnet 28, the support rod 14 is also detachably held by magnetic force.

[0053] Furthermore, for example, the prism 52 has a female thread that penetrates in the vertical direction, and is attached by being screwed into the male thread portion of the support rod 14. Because the prism 52 is attached by being screwed into the male thread portion of the support rod 14, the position of the prism 52 in the longitudinal direction of the support rod 14 (i.e., the height) can be adjusted.

[0054] Also, a nut may be threaded onto the male thread portion of the support rod 14 below the prism 52. In this case, when the support rod 14 is held by the first holding part 22, the nut may be brought into contact with the upper end of the first holding part 22, thereby allowing the prism 52 attached to the support rod 14 to be set at a desired position relative to the jig body 12. Alternatively, the position (height) of the nut may be adjusted in advance, and the prism 52 may be brought into contact with the nut, thereby setting the height of the prism 52 to a predetermined height.

[0055] [Positioning method] Next, the effects of the positioning jig of the present invention will be described by explaining the positioning method of the present invention.

[0056] The positioning method of the present invention is a positioning method that uses the positioning jig described above to determine a target position for driving a rod. The positioning method of the present invention will be described below with reference to Fig. 1 and Figs. 6 to 10. Figs. 6 to 10 are diagrams for explaining an example of a positioning method that uses the positioning jig of the present invention.

[0057] 1, the support rod 14 with the prism 52 attached is held by the first holding part 22 of the jig body 12, and the terminal (not shown) is held by the second holding part 26. While moving around with the positioning jig 10, the user measures the position of the prism 52 using a surveying instrument (total station) and moves the positioning jig 10 to the position where the pile core rod (rod) is to be driven. At this time, the terminal displays a previously loaded drawing, with the position of the prism 52 superimposed on it, so the user, while looking at the screen displayed on the terminal, moves the positioning jig 10 so that the position of the prism 52 matches the driving position shown on the drawing.

[0058] Once the position of the prism 52 is aligned with the target position to be driven, the support rod 14 to which the prism 52 is attached is removed from the first holding part 22 without moving the position of the jig body 12, as shown in FIG.

[0059] 7 and 8, without moving the position of the jig body 12, a rod body 60 is attached to the first holding part 22 from which the support rod 14 has been removed. As the rod body 60 in the present invention, any rod-shaped member such as a pile core rod can be used as appropriate.

[0060] Once the rod 60 is attached to the first holding part 22, a part of the rod 60 is driven into the target position without moving the position of the jig body 12. Because the length of the rod 60 is longer than the height of the first holding part 22, for example, it is possible to hit the upper tip of the rod 60 with a hammer and drive the lower tip part of the rod 60 into the target position.

[0061] Thereafter, once a portion of the rod 60 has been driven into the target position, the jig body 12 is moved and removed from the rod 60, as shown in Fig. 10. At this time, because the first holding part 22 has an opening 22a in a direction perpendicular to the extension direction of the groove part, the rod 60 is removed from the first holding part 22 through the opening 22a in a direction perpendicular to the longitudinal direction of the rod 60. As a result, after a portion of the rod 60 has been driven into the target position while the rod 60 is held by the first holding part 22, when the positioning jig (jig body 12) is removed from the rod 60, it can be removed in a direction perpendicular to the longitudinal direction of the rod 60. Therefore, the positioning jig (jig body 12) can be easily removed from the rod 60 even if a wire, rope, or the like is attached to the head tip of the rod 60.

[0062] Once the jig body 12 is removed from the rod 60, the rod 60 can be driven further.

[0063] In this way, the positioning method using the positioning jig of the present invention allows the position of the support rod 14 to which the prism 52 is attached to be more accurately aligned with the position of the rod body 60, making it possible to more accurately and easily determine the position to drive the rod body into.

[0064] In the above example, a method was described in which the positioning jig of the present invention is used to determine the position at which to drive the rod (pile core rod) and drive the rod into the exact position, but this is not limited to this.

[0065] The positioning jig of the present invention can be used to confirm the position of a driven pile core rod, the position of an anchor bolt, etc., with the support rod 14 with the prism 52 attached held by the first holding part 22 (see FIG. 1). Specifically, the position of the object can be confirmed by aligning the lower tip of the support rod 14 held by the first holding part 22 with the object whose position is to be confirmed and measuring the position of the prism 52 with a surveying instrument. [Explanation of symbols]

[0066] 10 Positioning jig 12 Jig body 14 Support rod 20 Base 21, 21a, 21b plate members 22 1st holding part 22a opening 23 Bending section 24 Handle 24a opening 26 Second holding part 28 Magnet 30 Joint material 52 Prism 60 Rod (Pile core rod)

Claims

1. A positioning jig for determining a target position for driving a rod body, A base portion; a support rod for supporting a position measurement prism; a first holding portion fixed to the base portion and configured to detachably hold the support rod; The first holding portion is a positioning jig that holds the rod body when the support rod is removed.

2. the first holding portion has an opening, The positioning jig according to claim 1 , wherein the rod held by the first holding portion is removable from the first holding portion through the opening in a direction perpendicular to the longitudinal direction of the rod.

3. The positioning jig according to claim 1 , wherein the first holding portion includes a magnet, and holds the support rod and the rod body by magnetic force of the magnet.

4. The positioning jig according to claim 1 , further comprising a second holding part that holds a terminal that displays information about the position of the prism and is fixed to the base part at a position separated from the first holding part.

5. The positioning jig according to claim 1 , further comprising a handle portion fixed to the base portion and adapted to be gripped by a user.

6. The positioning jig according to claim 1 , wherein the base portion is made of a flat plate.

7. A positioning method for determining a target position for driving the rod body using the positioning jig according to any one of claims 1 to 6.

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