JP7306124B2 - Markers and marking devices - Google Patents

Description

The present invention relates to a marker used for various surveys, stakes, and the like.

Signs are used for various types of surveying, such as public surveying, leveling surveying, control point surveying, multipoint surveying such as triangulation, and various stakes, such as display stakes and boundary stakes.

For example, a marker is installed at a survey point as a mark during sediment survey work at a dam. In a dam, so-called sedimentation occurs in which sediment flowing into a reservoir accumulates in the reservoir. As this sedimentation progresses, the functions of flood control and water utilization deteriorate, affecting the use of river water and the environment of reservoirs and downstream rivers. For this reason, a sedimentation survey is carried out once a year to measure the amount of sediment deposited in the reservoir.

In the sedimentation survey work, the sedimentation volume is measured at the position of the specified survey line set in the reservoir. The position of the survey line is specified by a line segment connecting a pair of survey points with the reservoir in between, among a plurality of survey points set around the reservoir. At the survey points, signs are erected that describe the identification number of each survey point. This allows each survey point to be identified from the reservoir and the position of the survey line to be identified.

As a conventional technology related to the marker, for example, a base body embedded at the embedding origin of the marker body, which is partially exposed on the ground and buried, indicates the embedding position in response to input of a search signal. A technique has been disclosed in which a response circuit that outputs a response signal is provided (see, for example, Patent Document 1 below). In addition, it comprises a through-hole metal rivet having a Morse taper, and a metal pillar formed separately from the metal rivet and provided with an insertion portion having a Morse taper joined to the upper end through the through-hole. , a technique is disclosed in which a marking for orientation confirmation is provided on the tip of the insertion portion (see, for example, Patent Document 2 below).

JP-A-9-026320 JP-A-7-139946

However, in the conventional technology, the sign may not function as a mark due to the installation environment of the sign. For example, a conventional sign consists of a pole fixed by a concrete base placed in the ground and a sign board fixed to the tip of the pole. For example, in an area with a large amount of snowfall, the pole may be bent or collapsed due to the accumulation of snow, resulting in damage.

For example, if the sign is knocked over, it will be impossible to see the survey point from the reservoir. In addition, if the survey point cannot be confirmed from the reservoir, it is necessary to go to the periphery of the reservoir to find the corresponding survey point and repair the fallen or broken signs. For this reason, prior to the sedimentation survey work, a heavy burden is placed on the operator, and it takes time to complete the sedimentation survey work.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to prevent damage and to efficiently perform various operations using a sign.

In order to achieve the above object, the present invention provides a marker that includes a base fixed to a survey point, a sign plate on which the identification number of the pole and the survey is written, a transportable movable marker, the base and the movable marker. and a connecting adapter that is provided in each of the bases and that allows the movable marker to be connected to the base.

Further, the connection adapter is characterized by being formed of any one or a combination of concave and convex portions provided on the base and the pole, male and female screws, and magnets.

Also, the foundation has an accommodation space of a predetermined length capable of accommodating the movable marker, and the movable marker after surveying is accommodated and held in the accommodation space of the foundation.

Also, the movable sign includes the pole, the sign plate, and a support plate provided at the lower end of the pole, and the base is buried to a predetermined depth with the length direction of the accommodation space facing the ground. a step to be fitted to the support plate, the support plate being fitted to the step of the foundation so that the sign plate can be erected on the step; and the movable sign being mounted on the foundation. In a state facing the accommodation space, the support plate is fitted to the step of the foundation to accommodate the sign plate in the accommodation space of the foundation, and the opening of the accommodation space is covered by the support plate. characterized by preventing

Further, the foundation is buried to a predetermined depth with the length direction of the accommodation space being horizontal to the ground, the opening of the accommodation space is open toward the upper surface, and has a step that is fitted to the support plate, The sign plate can be erected on the step by fitting the support plate to the step of the foundation, and the movable sign can be placed on the foundation with the movable sign facing the accommodation space of the foundation. It is characterized in that the sign plate can be accommodated in the accommodation space of the foundation by fitting the support plate to the step.

In addition, the marker body of the present invention includes a base fixed to a survey point, a movable marker including a marker plate on which the identification number of the pole and the survey is written, and a connection adapter that movably connects the movable marker on the foundation. and.

Also, the connecting adapter is characterized by being a hinge that allows the movable sign to stand or tilt relative to the foundation.

Further, the connecting adapter is characterized in that the movable sign can be tilted in the display direction of the sign board.

Further, the sign plate is a plain plate, and an identification body having a predetermined identification number indicating a survey point is detachably attached to the sign plate.

Also, a magnetic plate is used as the identification body, and is magnetically attracted to the sign plate.

According to the above configuration, the sign plate is detachable or displaceable with respect to the foundation as a movable sign together with the pole. By being detachable, the movable sign can be removed from the foundation buried in the ground, transported, and attached to the foundation only when necessary. By being displaceable, the movable sign can be tilted with respect to the foundation when not in use. In either case, it is possible to prevent the sign board from being damaged when not in use, and to easily assemble the sign board in a state where it is always easy to see when it is used for surveying, etc., so that survey work can be performed efficiently. be able to

ADVANTAGE OF THE INVENTION According to this invention, it is effective in being able to prevent damage and to perform efficiently various works using a sign.

1 is a perspective view of an example of a marker according to an embodiment; FIG. 2 is an exploded perspective view of the marker shown in FIG. 1. FIG. FIG. 3 is a perspective view showing a modification of the marker according to the embodiment; FIG. 4 is a perspective view showing another configuration example of the marker according to the embodiment. FIG. 5 is a perspective view showing another configuration example of the marker according to the embodiment. FIG. 6 is a perspective view showing another configuration example of the marker according to the embodiment.

(Embodiment)
Preferred embodiments of the marker according to the present invention will be described in detail below with reference to the accompanying drawings. The embodiment prevents damage due to the influence of environmental changes and the like by configuring a part of the marker to be deformable. As a result, various works such as surveying can be efficiently performed without impairing the function of the sign used as a mark in surveying.

FIG. 1 is a perspective view showing an example of a marker according to an embodiment, and FIG. 2 is an exploded perspective view of the marker shown in FIG. The marker 100 shown in these figures is constructed such that the marker itself can be moved from the survey point.

FIG. 1(a) shows a perspective view of the marker 100 viewed from the front 100a side. As shown in FIG. 1( a ), the marker 100 is composed of a base 101 fixed to a survey point and a movable marker 111 . The foundation 101 is made of concrete material, and is formed, for example, in a rectangular shape. This foundation 101 is installed, for example, at each survey point around the reservoir when performing a sedimentation survey at a dam, and is buried at a predetermined depth in the ground surface G so that the upper surface (surface) of the foundation 101 is exposed from the ground surface G. .

The movable sign 111 has a pole 112 and a sign plate 113 . The pole 112 has a predetermined height (length), and a sign plate 113 is provided on the upper end portion of the pole 112 . The pole 112 and the sign plate 113 that constitute the movable sign 111 can be easily carried by using a lightweight material such as a resin material. In the illustrated example, the label plate 113 is formed in a triangular flat plate shape, and can have various shapes. An identification number 114 (identification number "19" in the illustrated example) for identifying the surveying point is formed on the sign plate 113 with paint or the like.

FIG. 1(b) shows a perspective view of the marker 100 as viewed from the rear surface 100b side. As shown in FIG. 1( b ), a fixture 115 is provided at the upper end portion of the rear surface of the pole 112 to sandwich the pole 112 and fix the rear surface of the sign plate 113 to the pole 112 .

As shown in FIG. 2, a connection adapter 120 is provided between the base 101 and the movable marker 111 to enable connection between them. The connection adapter 120 provided on the foundation 101 side is, for example, a projection 101a projecting from the center of the surface of the foundation 101 to a predetermined height. The connecting adapter 120 provided on the movable marker 111 side is a recess 112b provided at the lower end of the pole 112 of the movable marker 111, and the recess 112b is detachable from the protrusion 101a of the base 101.

As described above, the marker 100 according to the embodiment is configured such that the movable marker 111 having the marker plate 113 can be detachably attached to the foundation 101 which is buried in the ground surface G and fixed in position. It is configured so that it can be moved from the point. The connection adapter 120 may have a configuration in which a concave portion is provided on the base 101 side and a convex portion is provided on the movable marker 111 side. In order to prevent dust from clogging the recess, it is necessary to cover the recess with a cover or the like.

For example, the outer diameter of the convex portion 101a and the inner diameter of the concave portion 112b are made substantially the same, and the concave portion 112b of the pole 112 is engaged with the convex portion 101a of the base 101, whereby the movable sign 111 is erected on the base 101. can be held with The height of the projection 101a protruding from the base 101 is desirably high enough to hold the movable marker 111 without tilting.

The connection adapter 120 consisting of these protrusions 101a and recesses 112b can be configured by screws or magnets instead of being fitted into each other. For example, by configuring the pole 112 as a hollow cylinder, the lower end of the pole 112 can be directly engaged with the convex portion 101 a of the foundation 101 . By configuring the pole 112 with a hollow cylindrical body such as a pipe, the weight of the entire movable sign 111 including the pole 112 can be reduced.

Alternatively, magnets with magnetic poles may be provided on the base 101 and the movable marker 111 to attract each other. When magnets are used, magnets may be provided in the convex portion 101a portion of the base 101 and the concave portion 112b portion of the movable marker 111, respectively. As a result, the movable marker 111 can be easily erected on the base 101 by the magnetic force that the magnets attract each other, and the movable marker 111 can be prevented from falling off the base 101 .

In addition, by forming a male screw on the convex portion 101a side and a female screw on the concave portion 112b side, it is possible to attach and detach the concave portion 112b of the movable indicator 111 from the convex portion 101a of the base 101 while screwing it. can.

A movable sign 111 consisting of a pole 112 and a sign plate 113 is brought to a survey point only during survey work, for example, and placed on the foundation 101 already installed at the survey point. At this time, the foundation 101 is installed at a predetermined surveying point during the surveying work, and the surveying can be performed simply by fitting the concave portion 112b of the movable marker 111 onto the convex portion 101a of the foundation 101 and erecting the pole 112. A movable marker 111 can be installed at the position of the point, and can function as the marker 100 .

For example, the marker 100 is provided at a survey point during sedimentation survey of a dam. In a dam, so-called sedimentation occurs in which sediment flowing into a reservoir accumulates in the reservoir. As this sedimentation progresses, the functions of flood control and water utilization deteriorate, affecting the use of river water and the environment of reservoirs and downstream rivers. For this reason, a sedimentation survey is carried out once a year to measure the amount of sediment deposited in the reservoir.

In the sedimentation survey work, the sedimentation volume is measured at the position of the prescribed survey line set in the reservoir of the dam. The position of the survey line is specified by a line segment connecting a pair of survey points with the reservoir in between, among the plurality of survey points set around the reservoir. The base 101 of the marker 100 is installed in advance at the pair of survey points. During the sedimentation survey work of the dam, the movable markers 111 are installed on each of the pair of foundations 101 to function as the marker bodies 100, and the sedimentation volume of the dam is surveyed on the survey line connecting the pair of marker bodies 100. can be done. The sedimentation survey work is carried out at a plurality of locations in the reservoir of the dam.

The transportable movable sign 111 can be brought to the surveying point only during sedimentation survey work of the dam, and is stored in the dam control room or the like after the sedimentation survey work is completed. As a result, after the sedimentation survey work, only the foundation 101 buried in the ground remains at the survey point, and the movable marker 111 is removed from the survey point. When the movable sign 111 is not in use, the portion fixed to the foundation 101 (the concave portion 112b portion of the connecting adapter 120) is covered with a cap to prevent the connecting adapter 120 portion from being soiled or damaged. can do.

Further, according to the above configuration, the marker 100 can be easily installed and removed from the survey point. In addition, when the sign body 100 is not in use, the sign body 100 should be avoided from being directly exposed to accumulated snow, direct sunlight, wind and rain, etc., to prevent deterioration of the sign plate 113, for example, fading of characters. can be done. Also, when the marker 100 is not used, the movable marker 111 protruding above the ground is withdrawn from the survey point, so that the marker 100, especially the movable marker 111, can be prevented from being damaged by snowfall, wind and rain, thunder, and the like. For example, it is possible to prevent bending of the pole 112 due to accumulated snow in an area with a large amount of snowfall, or breakage such as tilting.

In this respect, with the marker integrated on the foundation of the ground like the existing technology, if the pole of the marker collapses, the survey point cannot be confirmed from the reservoir of the dam. If it is not possible to confirm the survey points from the reservoir, it is necessary to go to the periphery of the reservoir to find the corresponding survey points and repair the fallen or broken markers. , the burden on the workers was heavy, and it took a long time to complete the sedimentation survey work.

On the other hand, according to the marker 100 of the embodiment, the movable marker 111 is detachable from the foundation 101, and the movable marker 111 is erected on the foundation 101 installed at the survey point only during surveying. Therefore, after surveying, it can be removed from the foundation 101 and withdrawn, thereby preventing damage due to accumulated snow, wind and rain, thunder, and the like. For example, in the sedimentation survey work of a dam, the movable marker 111 may be attached to the foundation 101 portion only when the sedimentation survey work is performed once a year.

FIG. 3 is a perspective view showing a modification of the marker according to the embodiment; In the configuration example of FIG. 3, the same components as in FIGS. 1 and 2 are denoted by the same reference numerals. FIG. 3 shows another configuration example of the sign plate 113 of the sign body 100 shown in FIGS. 1 and 2, for example.

As shown in FIG. 3A, the surface of the label plate 113 is plain, and the identification number 114 described above is not formed on the surface of the label plate 113 . A predetermined identification number is written on the plain label plate 113 with, for example, a magic pen that can be erased later. In this case, the sign plate 113 is plain like a whiteboard, and can be used so that the identification number of the survey point indicated by the sign plate can be rewritten.

FIG. 3(a) shows an example in which an identification body 301 having identification number "19" is detachably configured. For example, by using a metal plate as the label plate 113 and a magnetic plate as the identifier 301 , the identifier 301 can be detachably attached to the identifier plate 113 . Further, the sign plate 113 may be made of resin as a whole, and a metal piece may be partially provided only at the position where the magnetic plate as the identification body 301 is attached. The identification body (magnet plate) 301 is a sheet of magnetic material having a magnetic force, and can be held in a state of being attached to the label plate 113 by the magnetic force.

FIG. 3B shows an example of a magnet plate 301a and a magnet plate 301b with an identification number of "20" as the identifiers with an identification number of "19". Magnet plates 301 (301a, 301b) having different identification numbers are prepared in advance. For example, the number of identification numbers to be used in the surveying work such as the above-described sedimentation surveying work is prepared.

In this way, by configuring the identifiers (magnet plates 301a and 301b) to be detachable from the sign plate 113, one movable sign 111 (sign plate 113) can identify any sign (identification number) among a plurality of signs. be able to display.

In the example of FIG. 3(b), a magnetic plate 301a with identification number "19" can be attached to the sign plate 113 of one movable sign 111, and then the identification number "19" can be read from the sign plate 113. is removed from the magnet plate 301a. Then, a magnetic plate 301b having another identification number "20" written thereon can be attached to the sign plate 113. As shown in FIG.

At the time of surveying at the surveying points, one movable sign 111 is erected on the base 101 portion installed at each surveying point. A numbered magnet plate 301 may be attached.

When moving to a different survey point, the movable marker 111 is removed from the base 101 portion, and only this removed movable marker 111 is transported to the next survey point. Then, at the next survey point, the transported movable marker 111 is erected on the base 101 portion, and the magnetic plate 301 with the identification number corresponding to the survey point is attached to the marker plate 113 portion. In the sedimentation survey work, a pair of movable markers 111 are used, and the identification number (magnet plate 301) is changed for each movable marker, and surveying is performed sequentially.

As described above, if the identification number is detachably displayed on the plain sign plate 113 by the magnetic plate 301 or the like, the above-described movable sign 111 is installed, that is, one movable sign is attached to a plurality of survey points. Only signs 111 can be carried and placed. As a result, one movable marker 111 can be reused at a plurality of surveying points, so there is no need to carry a large number of movable markers 111 with different identification numbers for sedimentation survey work or the like. In this way, the number of movable markers 111 to be transported to each survey point can be reduced, and the burden of transport can be reduced.

For example, in the configuration example shown in FIG. 1, etc., the number of movable markers 111 corresponding to the number of survey points is transported, whereas according to the configuration example in FIG. 3, only one movable marker 111 needs to be transported. . At this time, a plurality of magnetic plates 301 (301a, 301b, .

The marker 100 described above is an example in which the movable marker 111 is detachably attached to the base 101 . The marker 100 described in the following example is a configuration example in which the movable marker 111 is left on the base 101 installed at the survey point. That is, in the configuration example described below, the position of the sign is fixed at the survey point, and the sign is movable at the survey point.

FIG. 4 is a perspective view showing another configuration example of the marker according to the embodiment. As shown in FIG. 4(a), a connection adapter 401 corresponding to a hinge is provided between the center of the surface of the base 101 and the movable marker 111 so that the posture of the movable marker 111 can be displaced on the base 101. .

In this configuration example, since the entire sign body 100 including the movable sign 111 is always installed at the survey point (outdoor), the material of the movable sign 111 is a metal (for example, stainless steel) that is resistant to corrosion and deformation. It is desirable to keep

FIG. 4(b) shows a partially enlarged view of the connecting adapter 401. The connecting adapter 401 provided on the base 101 side has, for example, a protruding piece 401a protruding from the center of the surface of the base 101 to a predetermined height. The connecting adapter 401 provided on the movable marker 111 side is provided at the lower end of the pole 112 of the movable marker 111 and is a groove portion 401b that engages with the projecting piece 401a. A shaft 401c supports the central portion of the projecting piece 401a and the groove portion 401b.

Thereby, as shown in FIG. 4A, the movable marker 111 can be tilted on the base 101 about the axis 401c. A lock mechanism may be provided between the projecting piece 401a and the groove portion 401b. For example, the locking function can be configured by a lock pin biased by a spring or the like against the protruding piece 401a from the movable marker 111 side, and an engagement hole formed in the protruding piece 401a and engaged with the lock pin. The engagement holes may be provided corresponding to the positions of the lock pins when the movable indicator 111 is erected and tilted as shown in FIG. 4(a). Accordingly, in the locking mechanism, the lock pin engages with the engaging hole when the movable marker 111 is erected and tilted, respectively, and the movable marker 111 can be held in the erected state and the tilted state, respectively.

According to the above configuration, the movable marker 111 is laid down when the marker body 100 is not used, and the movable marker 111 is erected and used only during sedimentation survey work. As a result, since the movable sign 111 is not in an upright state when the sign body 100 is not used, the external force applied to the movable sign 111 can be released, and the movable sign 111 can be prevented from being tilted by a predetermined angle. be able to prevent it. By erecting the movable sign 111 only when the sign body 100 is used, the movable sign 111 can be erected on the base 101 in the vertical direction. In this configuration example, since the entire marker 100 is fixedly installed at the survey point, the surveying operator can save the trouble of carrying the marker 100 corresponding to the installation locations of the plurality of survey points.

Also, as shown in FIG. 4A, the movable sign 111 may be tilted to the front side (the side on which the identification number is written). As a result, it is possible to suppress the growth of grass on the front side of the marker 100, and prevent the identification number of the marker 100 from being obscured by the grass even if the weeds are not removed when measuring the accumulated sediment. .

FIG. 5 is a perspective view showing another configuration example of the marker according to the embodiment. In the example shown in FIG. 5A, a movable sign 111 is configured to be accommodated inside a foundation 101 buried in the ground surface G. In the example shown in FIG. The base 101 has a storage space 501a corresponding to the height of the pole 112 and the sign plate 113 corresponding to the height of the movable sign 111 . The foundation 101 in the illustrated example is formed in a cubic shape having a predetermined length L in the vertical direction, and is buried under the ground surface G to a predetermined depth.

A stepped portion 501b having a smaller diameter by one step is formed on the inner periphery of the rectangular opening of the accommodation space 501a of the foundation 101 . On the other hand, a square support plate 511 is provided at the lower end of the pole 112 on the side of the movable sign 111, and the support plate 511 holds the pole 112 upright on the surface 511a. The support plate 511 is made of metal or concrete, for example, and has an outer diameter corresponding to the opening diameter of the stepped portion 501b.

Therefore, the support plate 511 of the movable sign 111 can be fitted into the stepped portion 501b of the opening of the foundation 101 . As shown in FIG. 5(a), the movable sign 111 can be held on the base 101 in an upright state by fitting the support plate 511 with the surface 511a side upward and fitting it to the stepped portion 501b of the base 101. As shown in FIG. can. An operation opening 501 c is provided on the side of the opening of the foundation 101 , and the hand can be inserted into the lower surface of the support plate 511 of the movable marker 111 on the foundation 101 to remove the movable marker 111 from the foundation 101 .

Further, as shown in FIG. 5(b), the removed movable sign 111 is fitted into the stepped portion 501b of the foundation 101 with the back surface 511b side of the support plate 511 facing up. can be accommodated in At the time of accommodation, the support plate 511 functions as a cover on the stepped portion 501b of the base 101 to close the accommodation space 501a, so that dust and the like can be prevented from entering the accommodation space 501a. Damage to a certain movable sign 111 can be prevented.

According to the above configuration, the movable marker 111 is taken out from the accommodation space 501a of the foundation 101 only during surveying such as sedimentation surveying work, and the movable marker 111 is placed upside down on the foundation 101 to form the marker body 100. be able to use it. Further, when the marker body 100 is not used, the movable marker 111 can be turned upside down so that the whole can be accommodated in the accommodation space 501a of the foundation 101.例文帳に追加

This makes it possible to easily install and remove the marker 100 at the survey point. In this configuration example, since the entire marker 100 is fixedly installed at the survey point, the surveying operator can save the trouble of carrying the marker 100 corresponding to the installation locations of the plurality of survey points. In addition, when the sign body 100 is not used, the movable sign 111 is housed inside the base 101, so that the movable sign 111 can be prevented from being directly exposed to direct sunlight, wind and rain, and deterioration of the sign plate 113 (character deterioration) can be prevented. such as fading) can be prevented.

FIG. 6 is a perspective view showing another configuration example of the marker according to the embodiment. FIG. 6 shows a configuration in which the movable sign 111 can be accommodated inside the foundation 101 buried in the ground surface G shown in FIG.

As shown in FIG. 6( a ), the movable marker 111 is configured to be tiltable on the surface 511 a of the support plate 511 via the connection adapter 401 . The connection adapter 401 engages the projecting piece 401a provided on the support plate 511 side with the groove portion 401b provided at the lower end of the pole 112 on the movable sign 111 side, and the central portion of the projecting piece 401a and the groove portion 401b is the axis. It is pivotally supported by 401c (see FIG. 4(b)). As a result, the movable marker 111 can be tilted about the axis 401c on the surface 511a of the support plate 511. As shown in FIG.

As shown in FIG. 6(b), the foundation 101 is formed in a cubic shape having a predetermined length L in the horizontal direction, and is buried under the ground surface G to a predetermined depth in this horizontal state. At this time, the ground surface G located at the opening of the housing space 501a is shaved to expose the opening.

At the opening of the housing space 501a, a stepped portion 501b having a smaller diameter by one step is formed in the vertical direction (upper surface) to support the support plate 511 of the movable sign 111 in a fitted state. Further, the opening of the accommodation space 501a has an operation opening 501c facing in the horizontal direction (lateral surface).

As a result, the support plate 511 of the movable sign 111 is fitted onto the stepped portion 501b of the foundation 101, and the pole 112 is erected on the support plate 511 via the connection adapter 401, thereby erecting the movable sign on the foundation 101. can do.

Also, as shown in FIG. 6B, the pole 112 can be laid down on the support plate 511, and the movable sign 111 can be stored inside the storage space 501a of the base 101 with the back surface 511b side of the support plate 511 facing up. . During this storage and when removing the movable sign 111 from the base 101, the support plate 511 can be operated at the opening 501c for operation to perform storage and removal.

Then, as shown in FIG. 6(c), when the movable sign 111 is accommodated inside the accommodation space 501a of the foundation 101, the support plate 511 is positioned on the stepped portion 501b of the foundation 101 and serves as a lid to cover the accommodation space 501a. Since it is closed, it is possible to prevent dust and the like from entering the interior of the accommodation space 501a from above, and to prevent damage to the movable sign 111 accommodated in the accommodation space 501a. In addition, when the movable sign 111 is housed, it is possible to prevent dust from entering the housing space 501a from the sides by covering the side operation opening 501c with a sheet or cover.

According to the above configuration, the movable marker 111 can be taken out from the accommodation space 501a of the foundation 101 and erected on the foundation 101 to be used as the marker body 100 only during surveying such as sedimentation surveying work. become. In addition, when the marker 100 is not used, the entire movable marker 111 can be accommodated in the accommodation space 501a of the base 101 .

This makes it possible to easily install and remove the marker 100 at the survey point. In this configuration example, since the entire marker 100 is fixedly installed at the survey point, the surveying operator can save the trouble of carrying the marker 100 corresponding to the installation locations of the plurality of survey points. In addition, when the sign body 100 is not used, the movable sign 111 is housed inside the base 101, so that the movable sign 111 can be prevented from being directly exposed to direct sunlight, wind and rain, and deterioration of the sign plate 113 (character deterioration) can be prevented. such as fading) can be prevented.

In each configuration example described above, the configuration in which the identification number shown in FIG. can be done. For example, it becomes possible to respond flexibly to changes in identification numbers at certain survey points.

According to the embodiment described above, the base fixed to the survey point with the marker body, the sign plate on which the identification number of the pole and the survey are described, and the transportable movable sign and the base and the movable sign are provided respectively. and a connection adapter for freely connecting the movable marker to the foundation. As a result, when not in use, such as after surveying, the movable signs, including the sign board, can be removed from the foundation and stored. be able to prevent it. In addition, when the device is used for surveying or the like, it becomes possible to easily assemble the sign plate in a state where it is always easily visible, so that the surveying work or the like can be carried out efficiently.

In addition, the connection adapter can be configured by any one or a combination of concave and convex portions provided on the base and the pole, male and female screws, and magnets. As a result, the pole of the movable marker can be easily attached to and detached from the foundation, and the state in which the movable marker is attached to the foundation can be maintained, so that the attachment and detachment of the movable marker can be easily performed in general surveying work.

Also, the foundation may have a storage space of a predetermined length that can store the movable marker, and the movable marker after surveying may be stored and held in the storage space of the foundation. As a result, when not in use after surveying, the movable sign can be stored in the storage space of the foundation at the position where the foundation is provided, and the sign body and pole can be stored to prevent damage, etc. . Also, during surveying or the like, the movable marker can be taken out from the storage space of the foundation and used immediately. In addition, by storing the movable signs in the foundation in this way, it is possible to store the removed movable signs in a separate storage place and save the work of transporting them to the foundation. be able to do so efficiently.

Also, the movable sign includes a pole, a sign plate, and a support plate provided at the lower end of the pole. The sign plate can be erected on the step by fitting the support plate to the step of the foundation, and the support plate can be placed on the step of the foundation with the movable sign facing the accommodation space of the foundation. may be fitted to accommodate the sign plate in the accommodation space of the foundation, and the opening of the accommodation space may be covered with the support plate. As a result, when not in use after surveying, the movable sign can be stored in the storage space of the foundation with the sign plate facing down, preventing damage to the sign and poles. You can keep it safe. In addition, when surveying, the movable sign can be taken out from the storage space of the foundation and immediately placed on the foundation with the sign board facing up and used. In addition, since the opening of the accommodation space is covered with the support plate, it is possible to prevent dust from entering the accommodation space both when the movable sign is in use and when it is not in use.

In addition, the foundation is buried to a predetermined depth with the length direction of the accommodation space being horizontal with the ground, and the opening of the accommodation space is open toward the upper surface and has a step that is fitted to the support plate. The sign plate can be erected on the step by fitting the support plate, and the support plate is fitted to the step of the foundation in a state in which the movable sign is directed to the accommodation space of the foundation and placed in the accommodation space of the foundation. It is good also as a structure which can accommodate a sign board. In this way, the foundation is not limited to being buried with the length direction of the accommodation space facing the ground, but may be provided with the length direction horizontal to the ground. The movable sign can be housed to prevent damage to the sign body and the pole and stored, and the movable sign can be immediately placed on the foundation with the sign board facing up and used.

In addition, the marker of the present invention includes a foundation fixed to a survey point, a movable marker including a marker plate on which the identification number of the pole and the survey is written, a connection adapter that displaceably connects the movable marker on the foundation, can be configured to have As a result, the connecting adapter can displace the sign plate and the pole with respect to the fixed foundation, so that the external force applied to the sign plate and the pole can be released, and damage due to external force such as snow accumulation can be prevented. In addition, when not in use such as after surveying, the sign board and the pole may be operated in a displaced state, and likewise, it is possible to prevent damage by making it less susceptible to snowfall, rainfall, earth and sand, thunder, and the like. Then, when using for surveying or the like, by displacing the sign board and the pole and erecting them on the foundation, the work such as surveying can be started immediately.

Also, the connecting adapter can be a hinge that allows the movable sign to stand or tilt relative to the foundation. By using hinges, the movable sign can be displaced to the laid down state and the erected state with a simple operation with respect to the foundation.

Also, the connecting adapter may allow the movable sign to be tilted in the display direction of the sign board. As a result, for example, by laying it down when not in use after surveying, it is possible to suppress the growth of grass on the front side of the sign. You can prevent it from disappearing.

Further, the sign plate may be a plain plate, and an identification body having a predetermined identification number indicating a survey point may be detachably attached to the sign plate. By preparing multiple identification objects with different identification numbers and attaching them to a single sign board, the movable sign can be used at multiple survey points, and multiple movable signs can be used during survey work. Work can be done without carrying it.

Alternatively, a magnetic plate may be used as the identifier so that it can be magnetically attracted to the label plate. This makes it possible to easily attach and detach identifiers having different identification numbers on one label plate.

For these reasons, according to the embodiment, it is possible to prevent damage to the sign due to environmental changes such as accumulated snow and earth and sand. As a result, it is possible to reduce the burden on workers involved in work such as sedimentation surveying, and to perform work such as surveying reliably and efficiently. At this time, even if the installation environment of the marker body changes, the marker body can always be visually recognized as a mark. In addition, according to the embodiment, since it is possible to prevent the sign from being damaged by an external force, the sign does not fall down or break at the survey point. Work such as surveying can be performed without imposing a burden on workers. For example, in the sedimentation survey of a dam, etc., there are a plurality of survey points, and the survey at these multiple survey points can be efficiently performed.

INDUSTRIAL APPLICABILITY As described above, the present invention can be applied to a marker used as a mark in various types of surveying. It is useful for sign objects that want to be able to see the sign well at all times without damage.

REFERENCE SIGNS LIST 100 marker 101 base 111 movable marker 112 pole 113 marker plate 114 identification number 115 fixture 120, 401 connection adapter 301 identifier (magnet plate)
401a projecting piece 401b groove 401c shaft 501a accommodation space 501b stepped portion 501c opening for operation 511 support plate G ground surface

Claims (6)

a transportable moveable sign comprising a sign plate bearing the identification number of the pole and surveyor;
a connection adapter provided on the movable marker and capable of freely connecting the movable marker to a foundation fixed to a survey point;
has
The sign plate is a plain plate,
A marker, wherein an identifier having a predetermined identification number indicating a survey point is detachably attached to the marker plate. 2. A marker according to claim 1, wherein a magnetic plate is used as said identifier and is magnetically attracted to said marker plate. 3. The marker according to claim 1, wherein said connecting adapter comprises any one or a combination of concave and convex portions provided on said base and said pole, male and female screws, and magnets. a foundation fixed to a survey point;
a transportable moveable sign comprising a sign plate bearing the identification number of the pole and surveyor;
a connection adapter provided on each of the base and the movable sign, and capable of freely connecting the movable sign to the foundation;
has
the foundation has a storage space of a predetermined length that can accommodate the movable sign;
A marker device, wherein the movable marker after surveying is accommodated and held in the accommodation space of the foundation. the movable sign includes the pole, the sign plate, and a support plate provided at the lower end of the pole;
The foundation is buried to a predetermined depth with the length direction of the accommodation space facing the ground, and has a step that fits into the support plate,
The sign plate can be erected on the step by fitting the support plate to the step of the foundation,
Further, in a state in which the movable sign faces the accommodation space of the foundation, the support plate is fitted to the step of the foundation to accommodate the sign plate in the accommodation space of the foundation, and 5. The marking device according to claim 4, wherein the opening of the space is covered with the support plate. The movable sign includes the pole, the sign plate provided at one end of the pole, a support plate provided at the other end of the pole, and a connecting portion that allows the pole to tilt freely on the support plate. including
The foundation is buried to a predetermined depth with the length direction of the accommodation space being horizontal to the ground, the opening of the accommodation space is open toward the upper surface, and has a step that is fitted to the support plate,
The sign plate can be erected on the step by fitting the support plate to the step of the foundation,
In addition, in a state in which the pole is tilted on the support plate and the movable sign is directed toward the accommodation space of the foundation, the support plate is fitted to the step of the foundation to fit into the accommodation space of the foundation. 5. The marking device according to claim 4, wherein said marking plate can be accommodated.

Images