Boundary marker member

Abstract

To provide a boundary marker member that has a simple structure and can be easily and accurately installed along land boundaries. [Solution] The boundary marker member 1 comprises a cylindrical base 2, at least a portion of which is buried in the ground, and a marker part 3 having a plate-shaped main body 31 on its upper surface 311 which is provided with boundary marks for indicating the boundary of the land, and legs 32 provided to extend downward from the main body 31. The marker part 3 is configured such that the legs 32 are inserted into the base 2 through the upper end opening 22 of the base 2, and the main body 31 is placed on the upper end surface 23 of the base 2, and the main body 31 is movable along the upper end surface 23 of the base 2, and the legs 32 are fixed by a filling and solidifying material 44 that is filled into the base 2.

Description

Technical Field

[0001] The present invention relates to a boundary marking member.

Background Art

[0002] Conventionally, as a boundary marker indicating the boundary of land, a concrete square columnar boundary pile is known (see, for example, Patent Document 1, etc.). A boundary mark for indicating the boundary of the land is provided on the upper surface of the boundary pile. When installing the boundary pile, a hole is dug in the ground and the boundary pile is inserted into the hole so as to be perpendicular, and the gap around the boundary pile is filled with mortar or the like to fix the boundary pile.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when installing the boundary pile, it is necessary to align the position indicated by the boundary mark on the boundary pile with the boundary of the land. However, when a minute positional error occurred when inserting the boundary pile into the hole dug in the ground, it was not easy to finely move the entire boundary pile to adjust the position. Therefore, only the upper part of the boundary pile was forcibly moved for alignment, and there were cases where the boundary pile was installed in a non-vertical and oblique state.

[0005] The present invention provides a boundary marking member that can be easily and accurately installed with respect to the boundary of the land while having a simple structure.

Means for Solving the Problems

[0006] A boundary marker member according to one aspect of the present invention comprises a cylindrical base portion which is at least partially buried in the ground, and a marker portion which has a plate-shaped main body portion on which a boundary mark for indicating the boundary of land is provided on the upper surface, and a leg portion which is provided to extend downward from the main body portion. The marker portion is such that the leg portion is inserted into the base portion through the upper end opening of the base portion, and the main body portion is placed on the upper end surface of the base portion, the main body portion is movable along the upper end surface of the base portion, and the leg portion is fixed by a filling and solidifying material filled into the base portion.

[0007] According to the boundary marker member described above, the base and the marker part, which has a main body on which the boundary mark is provided, are constructed separately. When the main body of the marker part is placed on the upper end surface of the base, the main body can be moved along the upper end surface of the base. Therefore, the main body of the marker part, which has the boundary mark provided, can be easily and accurately positioned relative to the land boundary. As a result, the boundary marker member can be easily and accurately installed relative to the land boundary.

[0008] In the boundary marker member described above, the base may be a bottomed cylindrical shape with a bottom that closes the lower end. In this case, the legs of the marker can be inserted into the base from the upper end opening of the base, and the legs can be easily and securely fixed by the filling and solidifying material that is filled into the base.

[0009] Furthermore, the upper end surface of the base may be a plane perpendicular to the axial direction of the base. In this case, if the base is installed vertically, the upper end surface of the base will be horizontal. This allows the main body of the sign to be moved horizontally along the upper end surface of the base when it is placed on the upper end surface of the base.

[0010] Furthermore, the main body of the marker may be mounted on the upper end surface of the base such that the boundary identification section, which identifies the land boundary based on boundary marks, is located radially outward from the base. In this case, even if the land boundary exists radially outward from the base, the main body of the marker can be easily and accurately positioned relative to the land boundary.

[0011] Furthermore, the base may be positioned close to the structure, and the main body of the marker may be positioned so that the boundary identification part rests on the upper surface of the structure. In this case, even if the land boundary overlaps with the structure, the main body of the marker can be easily and accurately positioned relative to the land boundary. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view showing the configuration of the boundary marker member of the first embodiment. [Figure 2] (A) is a plan view and (B) is a side view showing the configuration of the base of the boundary marker member of the first embodiment. [Figure 3] (A) is a plan view and (B) is a side view showing the configuration of the marker portion in the boundary marker member of the first embodiment. [Figure 4] This is a cross-sectional view showing the installation state of the boundary marker member according to the first embodiment. [Figure 5] This is a plan view showing the installation state of the boundary marker member according to the first embodiment. [Figure 6] This is a cross-sectional view showing the installation state of the boundary marker member according to the second embodiment. [Figure 7] This is a cross-sectional view showing the installation state of the boundary marker member according to the third embodiment. [Figure 8] This is a partial plan view showing the installation state of the boundary marker member according to the third embodiment. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) As shown in Figure 1, the boundary marker member 1 of this embodiment is a member for indicating the boundary of land. The boundary of land includes boundary points and boundary lines. The boundary of land is determined by conducting a survey using surveying equipment, etc. The boundary marker member 1 comprises a base portion 2 and a marker portion 3.

[0014] As shown in FIGS. 2(A) and (B), the base 2 is a member at least partially buried in the ground. The base 2 is made of concrete and is in the shape of a cylinder extending in the longitudinal direction. The base 2 is in the shape of a square tubular cylinder with a square cross-sectional shape (outer shape) perpendicular to the axial direction. The size of the base 2 is 90 mm in length, 90 mm in width, and 450 mm in length.

[0015] The base 2 is hollow with a space (inner space 21) provided inside. The upper end of the base 2 is opened by an upper end opening 22. The upper end surface 23 of the base 2 is a plane perpendicular to the axial direction of the base 2. The lower end of the base 2 is closed by a bottom 24. That is, the base 2 is a bottomed tubular cylinder having a bottom 24 that closes the lower end.

[0016] As shown in FIGS. 3(A) and (B), the marking portion 3 is a member that serves as a mark indicating the boundary of the land and is configured separately from the base 2. The marking portion 3 is composed of two parts: a main body portion 31 and a leg portion 32.

[0017] The main body portion 31 is a portion placed on the upper end surface 23 of the base 2. The main body portion 31 is a plate made of an aluminum alloy and is in the shape of a square flat plate. The size of the main body portion 31 is 90 mm in length, 90 mm in width, and 10 mm in thickness. The outer shape and size of the main body portion 31 are the same as those of the base 2.

[0018] On the upper surface 311 of the main body portion 31, a boundary mark 312 for indicating the boundary of the land is provided. The boundary mark 312 is a cross mark and is engraved on the upper surface 311 of the main body portion 31. Note that the boundary mark 312 may be provided on the upper surface 311 of the main body portion 31 by means such as pasting or printing.

[0019] As in the present embodiment, when the boundary mark 312 is a cross mark, the boundary specifying portion 314 that specifies the boundary of the land based on the boundary mark 312 is the intersection of the cross (specifically, the center of the intersection). That is, the center of the main body portion 31 becomes the boundary specifying portion 314, and this boundary specifying portion 314 indicates the boundary of the land (the boundary point in the present embodiment).

[0020] The leg part 32 is a part inserted into the inner space 21 of the base 2. The leg part 32 is made of iron and is an elongated rod shape extending downward (in the thickness direction of the main body part 31) from the central part of the lower surface 313 of the main body part 31. The length of the leg part 32 is 300 mm.

[0021] On the side surface of the leg part 32, minute constricted parts are intermittently provided in the longitudinal direction. The leg part 32 is fixed to the lower surface 313 of the main body part 31. Incidentally, the leg part 32 may be configured to be detachable from the lower surface 313 of the main body part 31.

[0022] Next, while explaining the installation method of the boundary marking member 1 of the present embodiment, the configuration of the boundary marking member 1 will be further explained. First, as shown in FIGS. 4 and 5, a hole 42 is dug in the surface 41 of the ground 4 where the boundary marking member 1 is to be installed. Then, the base 2 is inserted into the hole 42, and the base 2 is arranged so that the upper end surface 23 of the base 2 is along the surface 41 of the ground 4.

[0023] At this time, the base 2 is arranged so that the base 2 becomes vertical, specifically, so that the axial direction of the base 2 coincides with the vertical direction. Also, the base 2 is arranged so that the upper end surface 23 of the base 2 becomes horizontal, specifically, so that the upper end surface 23 of the base 2 coincides with the horizontal direction. Incidentally, the vertical and horizontal of the base 2 can be confirmed using a level or the like.

[0024] Thereafter, mortar 43 is poured into the gap between the hole 42 and the base 2, and the mortar 43 is solidified to fix the base 2. As a result, with the upper end surface 23 of the base 2 exposed on the surface 41 of the ground 4, substantially the entire base 2 is buried in the ground 4 (underground).

[0025] Next, the unsolidified filling material 44 is poured into the inner space 21 of the base 2 to fill it, and in that state, the legs 32 of the sign part 3 are inserted into the inner space 21 of the base 2 through the upper end opening 22 of the base 2, and then the main body 31 of the sign part 3 is placed on the upper end surface 23 of the base 2. As the filling material 44, a material that can be filled into the inner space 21 of the base 2 and solidifies over time, such as mortar that hardens when mixed with water, can be used. In this embodiment, mortar is used as the filling material 44.

[0026] At this time, the main body 31 of the sign unit 3 is movable along the upper end surface 23 of the base 2. That is, since the upper end surface 23 of the base 2 is horizontal, the main body 31 of the sign unit 3 is movable horizontally along the upper end surface 23 of the base 2. In addition, the main body 31 of the sign unit 3 is movable horizontally within the range in which the legs 32 of the sign unit 3 are movable in the inner space 21 of the base 2.

[0027] Then, the position of the main body 31 of the marker unit 3, which is placed on the upper end surface 23 of the base unit 2, is aligned with the land boundary. Specifically, the boundary identification part 314 (center of the main body 31) of the main body 31 of the marker unit 3 is aligned with the land boundary point X.

[0028] For example, if the central axis 25 of the base 2 coincides with the boundary point X of the land, the outer shape of the base 2 and the outer shape of the main body 31 of the marker unit 3 are the same, so the main body 31 of the marker unit 3 is positioned to match the outer shape of the base 2. This causes the boundary identification portion 314 of the main body 31 of the marker unit 3 to coincide with the boundary point X of the land.

[0029] On the other hand, if the central axis 25 of the base 2 does not coincide with the boundary point X of the land, and there is a misalignment (position error) between the two, the main body 31 of the marker unit 3 is moved horizontally along the upper end surface 23 of the base 2. In this embodiment, it is moved slightly diagonally upward to the left from the position of the central axis 25 of the base 2 (see Figure 5). This causes the boundary identification part 34 of the main body 31 of the marker unit 3 to coincide with the boundary point X of the land.

[0030] Subsequently, the legs 32 of the marker section 3 are fixed by solidifying the filling material 44 that has been filled into the inner space 21 of the base section 2. That is, the marker section 3 is fixed with the main body 31 of the marker section 3 placed on the upper end surface 23 of the base section 2. With the above steps completed, the installation of the boundary marker member 1 is completed, resulting in the boundary marker structure shown in Figures 4 and 5.

[0031] Next, the operation and effects of the boundary marker member 1 of this embodiment will be described. In this embodiment of the boundary marker member 1, the base portion 2 and the marker portion 3 having a main body portion 31 on which the boundary mark 312 is provided are constructed separately. When the main body portion 31 of the marker portion 3 is placed on the upper end surface 23 of the base portion 2, the main body portion 31 can be moved along the upper end surface 23 of the base portion 2.

[0032] Therefore, the main body 31 of the marker unit 3, which is provided with boundary marks 312, can be easily and accurately positioned relative to the land boundary. Specifically, the boundary identification unit 314 of the main body 31 of the marker unit 3, which identifies the land boundary based on the boundary marks 312, can be easily and accurately positioned relative to the land boundary point X. This allows the boundary marker member 1 to be easily and accurately installed relative to the land boundary.

[0033] Furthermore, since the base 2 and the marker section 3 are constructed separately, the final step is simply to align the main body 31 of the marker section 3 with respect to the land boundary. In other words, there is no need to align the entire component as in conventional boundary stakes. Therefore, even if there is a discrepancy (position error) between the position of the base 2 and the land boundary, as in this embodiment, the position of the main body 31 of the marker section 3 only needs to be adjusted with respect to the land boundary. This makes the installation of the boundary marker member 1 easier and improves its installation accuracy.

[0034] In the boundary marker member 1 of this embodiment, the base 2 is a bottomed cylindrical shape with a bottom 24 that closes the lower end. Therefore, with the legs 32 of the marker portion 3 inserted into the inner space 21 of the base 2 from the upper end opening 22 of the base 2, the legs 32 can be easily and reliably fixed by the filling and solidifying material 44 that fills the inner space 21 of the base 2. In particular, in this embodiment, the filling and solidifying material 44 that fills the inner space 21 of the base 2 and the material that fills the gap between the hole 42 dug in the ground 4 and the base 2 are the same mortar, which makes the installation work of the boundary marker member 1 even easier.

[0035] Furthermore, the upper end surface 23 of the base 2 is a plane perpendicular to the axial direction of the base 2. Therefore, if the base 2 is installed vertically, the upper end surface 23 of the base 2 becomes horizontal. This allows the main body 31 of the marker unit 3 to be moved horizontally along the upper end surface 23 of the base 2 when it is placed on the upper end surface 23 of the base 2. In other words, the main body 31 of the marker unit 3 can be positioned more easily and accurately relative to the land boundary.

[0036] (Second Embodiment) This embodiment, as shown in Figure 6, is an example in which the upper part of the base 2 of the boundary marker member 1 is exposed to the ground. The same configuration and effects as in the first embodiment will not be described.

[0037] When installing the boundary marker member 1, a hole 42 is dug in the surface 41 of the ground 4 where the boundary marker member 1 is to be installed. Then, the base 2 is inserted into the hole 42 and positioned so that the upper part of the base 2 protrudes about 50 mm from the surface 41 of the ground 4.

[0038] Subsequently, mortar 43 is poured into the gap between the hole 42 and the base 2, and the base 2 is fixed by allowing the mortar 43 to harden. This leaves the upper part of the base 2 exposed above ground, while a portion of the base 2 is buried in the ground 4. The subsequent steps are the same as in the first embodiment.

[0039] (Third embodiment) This embodiment, as shown in Figures 7 and 8, is an example of installing a boundary marker member 1 when a land boundary point X exists in a roadside ditch (structure) 5. The same configuration and effects as in the first embodiment will not be explained.

[0040] The side ditch 5 is installed along the road and functions as a waterway for draining rainwater and other liquids. The side ditch 5 is a U-shaped concrete side ditch. The side ditch 5 is installed on top of a base of crushed stone 61 and a bedding mortar 62.

[0041] The drainage ditch 5 has a bottom portion 51 and a pair of side walls 52 and 53 erected from both ends of the bottom portion 51. The upper surfaces 521 and 531 of the pair of side walls 52 and 53 are arranged to follow the surface 41 of the ground 4. In this embodiment, the boundary point X of the land is located at the position of one of the side walls 52 of the drainage ditch 5.

[0042] In the boundary marker member 1, the boundary mark 312 engraved on the upper surface 311 of the main body portion 31 of the marker portion 3 is an arrow mark. When the boundary mark 312 is an arrow mark, the boundary identification portion 314 is the corner of the main body portion 31 pointed to by the arrow. In this embodiment, it is the upper left corner of the main body portion 31 (see Figure 8).

[0043] When installing the boundary marker member 1, a hole 42 is dug in the surface 41 of the ground 4 where the boundary marker member 1 is to be installed. Specifically, the hole 42 is dug adjacent to the side wall 52 of the drainage ditch 5. Then, the base 2 is inserted into the hole 42 and positioned so that the upper end surface 23 of the base 2 is along the surface 41 of the ground 4 and close to the side wall 52 of the drainage ditch 5.

[0044] Subsequently, mortar 43 is poured into the gap between the hole 42 and the base 2, and the base 2 is fixed by allowing the mortar 43 to harden. This buries almost the entire base 2 in the ground 4, with the upper end surface 23 of the base 2 exposed to the surface 41 of the ground 4.

[0045] Next, the unsolidified filling material 44 is poured into the inner space 21 of the base 2 to fill it, and in that state, the legs 32 of the marker part 3 are inserted into the inner space 21 of the base 2 through the upper end opening 22 of the base 2, and then the main body part 31 of the marker part 3 is placed on the upper end surface 23 of the base 2.

[0046] Then, the position of the main body 31 of the marker unit 3, which is placed on the upper end surface 23 of the base 2, is aligned with the land boundary. Specifically, the boundary identification portion 314 (the upper left corner of the main body 31) of the main body 31 of the marker unit 3 is aligned with the land boundary point X located at the side wall portion 52 of the drainage ditch 5.

[0047] At this time, the main body 31 of the marker unit 3 is moved horizontally along the upper end surface 23 of the base 2. In this embodiment, it is moved diagonally upward and to the left from the position of the base 2 (see Figure 8). This causes the boundary identification portion 314 of the main body 31 of the marker unit 3 to coincide with the boundary point X of the land.

[0048] The main body 31 of the marker unit 3 is placed on the upper end surface 23 of the base 2 such that the boundary identification portion 314 is located radially outward of the base 2, that is, in an area outside the outer peripheral surface of the base 2. The main body 31 of the marker unit 3 is also placed on the upper surface 521 of the side wall portion 52 of the side ditch 5.

[0049] Subsequently, the legs 32 of the marker section 3 are fixed by solidifying the filling material 44 that has been filled into the inner space 21 of the base section 2. That is, the marker section 3 is fixed with the main body 31 of the marker section 3 resting on the upper end surface 23 of the base section 2 and the upper surface 521 of the side wall 52 of the side ditch 5. With the above steps completed, the installation of the boundary marker member 1 is completed, resulting in the boundary marker structure shown in Figures 7 and 8.

[0050] Next, the operation and effects of the boundary marker member 1 of this embodiment will be described. Traditionally, when land boundaries overlapped with structures such as road gutters, it was impossible to install boundary markers. Therefore, methods such as attaching plate-shaped boundary markers to the top surface of the structure with adhesive, or drilling holes in the top surface of the structure and fixing them with anchor pins, were employed. However, these methods had problems, such as the boundary markers being easily detached or removed by impacts, the installation process being complicated, and in some cases, the space required to install boundary markers being insufficient for the structure itself.

[0051] In the boundary marker member 1 of this embodiment, the main body 31 of the marker portion 3 is placed on the upper end surface 23 of the base portion 2 such that the boundary identification portion 314 is located radially outward of the base portion 2. Therefore, even if a land boundary point X exists radially outward of the base portion 2, the boundary identification portion 314 of the main body 31 of the marker portion 3 can be positioned more easily and accurately with respect to the land boundary point X.

[0052] Furthermore, the base portion 2 is positioned close to the gutter 5, and the main body portion 31 of the marker portion 3 has a boundary identification portion 34 that rests on the upper surface 521 of the side wall portion 52 of the gutter 5. Therefore, even if the boundary point X of the land is located so as to overlap with the gutter 5, the boundary identification portion 314 of the main body portion 31 of the marker portion 3 can be positioned more easily and accurately relative to the boundary point X of the land.

[0053] (Other embodiments) The present invention is not limited in any way to the embodiments described above, and it goes without saying that it can be implemented in various forms without departing from the scope of the present invention.

[0054] (1) In the above embodiment, the base portion 2 is a rectangular tube with a square (quadrilateral) cross-sectional shape perpendicular to the axial direction, but for example, the cross-sectional shape perpendicular to the axial direction may be a polygon, circle, ellipse, or other cylindrical shape.

[0055] (2) In the above embodiment, the base 2 is made of concrete and the sign part 3 is made of metal, but the materials for the base and the sign part can be concrete, stone, wood, metal, plastic, etc. as appropriate. The materials for the base and the sign part may be the same or different.

[0056] (3) In the above embodiment, the base 2 and the main body 31 of the sign part 3 have the same external shape and size, but the base and the main body of the sign part may have different external shapes and sizes. Also, the size of the base and the sign part (main body and legs) can be changed as appropriate.

[0057] (4) In the above embodiment, the boundary mark 312 provided on the main body 31 of the sign unit 3 is a cross or an arrow mark, but the boundary mark may be, for example, a circle, a T, a minus sign, etc. Also, the boundary identification unit that identifies the land boundary (boundary point, boundary line) is determined by the type of boundary mark.

[0058] (5) In the above embodiment, the legs 32 of the sign portion 3 are provided in the center of the main body portion 31, but the legs may be provided on the outer circumference of the main body portion. In this case, the range in which the main body portion of the sign portion can move along the upper end surface of the base portion is increased. This is particularly effective when positioning the boundary identification portion of the main body portion of the sign portion radially outward of the base portion (an area outside the outer circumference of the base portion). Also, the number of legs may be one or multiple.

[0059] (6) In the above embodiment, the base 2 is a bottomed cylindrical shape with a bottom portion 24 that closes the lower end, but the base may be configured without a bottom portion. That is, the base may be a cylindrical shape with open upper and lower ends.

[0060] (7) In the above embodiment, a road gutter 5 was used as an example of a structure that overlaps with the land boundary point X, but the structure may be any other structure, such as a concrete block wall. If a concrete block wall is installed so as to protrude from the surface of the ground and the land boundary overlaps with the concrete block wall, the base should be positioned to protrude from the surface of the ground in accordance with the height of the concrete block wall (see Figure 6), and the boundary identification part of the main body of the sign should be placed on the upper surface of the concrete block wall.

[0061] (8) The functions of one component in the above embodiment may be distributed among multiple components, or the functions of multiple components may be integrated into one component. Also, some parts of the configuration of the above embodiment may be omitted. Also, at least some parts of the configuration of the above embodiment may be added to, substituted for, or otherwise replaced with the configuration of other above embodiments. Any aspect of the technical concept specified by the wording of the claims is an embodiment of the present invention. [Explanation of Symbols]

[0062] 1...Boundary marker member, 2...Base, 3...Marking part, 22...Upper end opening, 23...Upper end surface (upper end surface of base), 31...Main body, 32...Legs, 44...Filling and solidifying material, 311...Top surface (top surface of main body), 312...Boundary mark

Claims

1. A cylindrical base that is buried in the ground, It comprises a plate-shaped main body with boundary marks on its upper surface to indicate land boundaries, and a marker section having legs that extend downward from the main body, The base and the main body of the sign are the same in external shape and size. The upper end surface of the base is a plane perpendicular to the axial direction of the base, and the entire plane is the same plane, and is installed so as to coincide with the horizontal direction. The sign portion is configured such that, with the legs inserted into the base through the upper end opening of the base and the main body placed on the upper end surface of the base, the main body is movable horizontally along the upper end surface of the base, and the legs are fixed by a filling and solidifying material filled into the base. Boundary marker member.

2. The boundary marker member according to claim 1, wherein the base is a bottomed cylindrical shape having a bottom that closes the lower end.

3. The boundary marker member according to claim 1, wherein the main body of the marker portion is placed on the upper end surface of the base such that the boundary identification portion, which identifies the boundary of the land based on the boundary mark, is located radially outward of the base.

4. The boundary marker member according to claim 3, wherein the base portion is positioned in close proximity to the structure, and the main body portion of the marker portion has the boundary identification portion placed on the upper surface of the structure.

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