Surveying target support

Abstract

To provide a target support capable of positioning a target pole at a survey point and supporting the target pole in a state along the vertical direction with a simple configuration.SOLUTION: The target support 1 supports a target pole 100 to be detected by a surveying device. The target support tool 1 includes a support tool body 2 installed at a survey point, a pole support member 10 attached to the support tool body and supporting a lower portion (ferrule 101a) of the target pole 100, and a coupling link 20 that couples the pole support member to the support tool body so as to be rotatable around a horizontally extending shaft and holds the pole support member at a predetermined position. The target support 1 positions the target pole 100 at a survey point, and supports the target pole in a state along the vertical direction by rotating the pole support member 10.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a surveying target support device, and more particularly to a surveying target support device that is installed at a surveying point and supports a target pole that is detected by a surveying instrument. [Background technology]

[0002] Conventionally, a surveying device (total station) is installed at a reference point within a building construction site, a target pole (prism pole) with a target is installed at the surveying point, and the target is detected by the surveying device to measure the position information (distance information, angle information) of the surveying point.

[0003] For example, a target pole is set on the marking line for construction work, and the target is detected by a surveying device to measure the position information of the marking line. Alternatively, a surveying device and a target pole are used to measure the position where the marking line is to be marked on the floor surface of a building, and the marking line is then marked at the measured point. Under these circumstances, in order to reduce measurement errors in surveying work, a surveying target support tool that allows a target pole to be stably installed at a surveying point has been developed (see Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-114701 [Patent Document 2] Japanese Patent Publication No. 2020-139921 Summary of the Invention [Problem to be solved by the invention]

[0005] Meanwhile, in the target support devices such as those disclosed in Patent Documents 1 and 2, there has been a demand for a jig that can position the target pole at the survey point with a simple configuration and can support the target pole in a vertically aligned state. In particular, there has been a demand for a jig that can support a target pole in a vertically aligned state even when the installation surface at the surveying point is inclined relative to the horizontal.

[0006] In addition, with the target support tools described in Patent Documents 1 and 2, when marking a marking line at a surveying point, it is necessary to move the target support tool from the surveying point. Therefore, there has been a demand for a jig that can easily mark a marking line while remaining installed at the surveying point.

[0007] An object of the present invention is to provide a surveying target support tool that has a simple configuration, is capable of positioning a target pole at a surveying point, and is capable of supporting the target pole in a vertically aligned state. Another object of the present invention is to provide a surveying target support tool that can easily mark a marking line at a surveying point while it is still installed at the surveying point. [Means for solving the problem]

[0008] The above problem is solved by the surveying target support of the present invention, which is a surveying target support for supporting a target pole having a target to be detected by a surveying instrument, comprising: a support body to be installed at a surveying point; a pole support member attached to the support body and supporting a lower portion of the target pole; and a connecting member that connects the pole support member to the support body so that it can rotate about an axis along a horizontal direction and holds the pole support member in a predetermined position; the surveying target support positioning the target pole at the surveying point and supports the target pole in a vertical direction by rotating the pole support member. With the above configuration, it is possible to realize a survey target support tool with a simple configuration that can position a target pole at a survey point and support the target pole in a vertically aligned state. Specifically, the target support device can support the target pole in a positioned state using the pole support member, and can support the target pole in a vertical state by rotating the pole support member around a horizontal axis using the connecting member.

[0009] In this case, the pole support member is positioned at a higher position than the support body, and the connecting member is a connecting link that connects the support body and the pole support member in the vertical direction and connects the pole support member so that it can rotate. With the above-described configuration, the target support device can support the target pole in a vertically aligned state by rotating the pole support member and the target pole using the connecting link.

[0010] In this case, the support body is provided with a rotating member that rotates the pole support member around an axis along the vertical direction, the connecting member connects the rotating member and the pole support member in the vertical direction and connects the pole support member so that it can rotate around an axis along the horizontal direction, and the rotating member rotates the pole support member and the connecting member around an axis along the vertical direction. With the above-described configuration, the target support tool can move the pole support member and the target pole three-dimensionally using the rotating member and connecting link, and support the target pole in a state aligned in the vertical direction. In particular, even if the installation surface at the surveying point is slightly inclined relative to the horizontal, the target support can support the target pole in a vertically aligned state.

[0011] In this case, the rotating member is preferably provided in the horizontal center of the rotating member, has an opening that allows the target pole to pass through in the vertical direction, and is arranged to surround the lower part of the target pole, and the rotating member rotates the pole support member and the connecting member by rotating around an axis that extends in the vertical direction. With the above configuration, the pole support member and the target pole supported by the pole support member can be rotated horizontally in accordance with the rotational movement of the rotating member, and the position of the target pole can be adjusted.

[0012] In this case, the support body is provided with a base member that is installed at the surveying point and detachably supports the rotating member, and the base member preferably has a base body portion and a positioning portion that is provided on the upper surface of the base body portion and engages with the lower end portion of the rotating member. The above configuration makes it possible to realize a simple target support tool consisting of two parts: a base member that is installed at the survey point, and an upper member (rotating member, connecting member, and pole support member) that is detachable from the base member.

[0013] In this case, the support body is provided with a base member that is installed at the surveying point, and the base member has a central hole that is formed by penetrating the center of the base body in the vertical direction and supports the tip of the target pole, and a guide hole that extends horizontally from the central hole and is used to mark a marking line, and the guide hole is preferably exposed to the outside when the pole support member is removed. With the above configuration, by removing the upper member (pole support member) from the base jig, it is possible to easily mark the marking line using the guide holes while the jig is still installed at the surveying point.

[0014] In this case, the base member has a protrusion that protrudes horizontally outward from the outer edge of the base main body, and the protrusion is provided at a position on the outer edge of the base main body that is on an extension of the guide hole, and has a second guide hole that is formed along the extension of the guide hole and is used to align with the marking line. With the above configuration, the second guide holes can be used to accurately install the target support along a marking line that has been pre-marked on the floor. Furthermore, by using the second guide holes, it is also possible to easily mark a new marking line at the surveying point. When using the second guide holes, it is not necessary to remove the support jig from the base jig. [Effects of the Invention]

[0015] According to the surveying target support tool of the present invention, it is possible to position the target pole at the surveying point with a simple configuration and to support the target pole in a state aligned in the vertical direction. Furthermore, it is possible to easily mark the surveying point with the device still installed at the surveying point. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a configuration diagram of a surveying system according to an embodiment of the present invention, illustrating the operation of surveying a survey point (marked point). FIG. [Figure 2] FIG. 1 is a configuration diagram of a surveying system, illustrating the work of marking a marking line at a surveying point. [Figure 3] FIG. 2 is a perspective view of a target support and a target pole. [Figure 4] FIG. 2 is a side view of the target support. [Figure 5] FIG. 2 is a top view of the target support. [Figure 6] FIG. 2 is an exploded perspective view of the target support and the target pole. [Figure 7] FIG. 2 is an exploded perspective view of a pole support member and a connecting link. [Figure 8] FIG. 2 is a side view of the target support and target pole, showing the state in which they are installed on an inclined surface. [Figure 9] 9 is a diagram showing a state in which the target pole has been rotated to a vertical position from the state in FIG. 8. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a "survey target support tool" that can position a target pole at a surveying point and support the target pole in a vertically aligned state. It also relates to a "surveying system" that includes a surveying target support.

[0018] <Overall configuration of the surveying system> As shown in Figures 1 and 2, the surveying system S of this embodiment is mainly composed of a target support 1 installed at a surveying point within a building, a target pole 100 supported by the target support 1, a surveying device 200 installed at a reference point within the building to detect the target pole 100 (target 103) and measure the position information of the surveying point, and an operator terminal 300 operated by an operator and connected to the surveying device 200 so as to be able to communicate with it. The surveying system S can mainly perform the surveying work (first surveying work) shown in Fig. 1 and the surveying work (second surveying work) shown in Fig. 2. Specifically, the surveying work is as follows.

[0019] In the surveying system S, as shown in FIG. 1, the target support 1 is installed on a marking line L drawn on an installation surface G inside a building. Strictly speaking, the base member 50 is installed first so that the marking line L and the second guide hole 57 are aligned. Then, the upper members (the rotating member 30, the connecting link 20, and the pole support member 10) are placed on the base member 50. Then, a target pole 100 is set on the target support 1, and the target 103 is detected by the surveying device 200, thereby measuring the position information of the marking line L (position information of the measurement point). By using the target support tool 1, it is possible to position the target pole 100 at the surveying point and to support the target pole 100 in a state aligned in the vertical direction. In particular, as shown in Figures 8 and 9, the target support 1 can be used to support the target pole 100 in a vertical direction, not only when the installation surface G is flat, but also when the installation surface G is inclined.

[0020] In the surveying system S, as shown in FIG. 2, a target support 1 is installed on an installation surface G within a building. A target pole 100 is then installed on the target support 1, and the position information of the target pole 100 is measured using a surveying device 200. An operator uses an operator terminal 300 to compare the position information measured by the surveying device 200 with information on the position where the marking line is to be placed. The operator then moves the positions of the target support 1 and the target pole 100, and places the target support 1 (target pole 100) at the position where the marking line is to be placed (the marking position). The target pole 100 is then removed upward, leaving the base member 50 at the marking position. The operator then uses the guide hole 55 and second guide hole 57 of the base member 50 to mark the marking line at the marking position. In this way, by using the target support 1, it is possible to easily mark a marking line along the guide hole 55 (second guide hole 57) while the base member 50 remains installed at the surveying point (marking position).

[0021] "Marking out work" refers to the work of marking reference lines (marking out lines) and reference marks (marking out marks) on floors, walls, ceilings, etc., that indicate the reference positions for various construction work at a building construction site. Specifically, this includes marking out foundations, marking out the framework, marking out finishing, etc.

[0022] Below, the target pole 100, the surveying instrument 200, and the operator terminal 300 will be explained first, and then the target support tool 1 will be explained in detail.

[0023] As shown in FIGS. 1 to 3, the target pole 100 is a long object to be detected having a target 103, and is, for example, an automatic tracking compatible full-circle target pole (full-circle prism pole). The target pole 100 comprises a vertically long pole 101, a holder 102 attached to the upper part of the pole 101, and a target 103 and a bubble tube 104 supported by the holder 102. As shown in FIG. 3, the lower portion (bottom end portion) of the pole 101 serves as a ferrule 101a, which comes into contact with the surveying point.

[0024] The target 103 is a 360-degree reflecting prism that is the object to be detected by the surveying instrument 200 . The bubble tube 104 is a level that uses an air bubble, and moves the air bubble inside the bubble tube to determine the horizontal surface (horizontal state) of the target pole 100, in other words, the vertical position (vertical state) of the target pole 100. The target pole 100 is attached to the target support 1 from above, and is installed at the surveying point on the installation surface G while being supported by the target support 1. The worker attaches the target pole 100 onto the target support 1 while checking the air bubble tube 104.

[0025] As shown in FIGS. 1 and 2, the surveying device 200 is an automatic tracking total station, and is installed at a reference point inside a building. The surveying device 200 detects the target pole 100 supported by the target support 1, and measures the position information of the target 103 based on the detection results. The surveying device 200 comprises a device main body 201 that measures the distance and direction to the target 103 by emitting laser light while continuously changing the irradiation direction and receiving reflected light from the target 103, and a control controller 202 that is attached inside the device main body 201. The controller 202 is a computer equipped with a CPU (processor), a storage device, and a communication interface. The surveying device 200 measures the position information of the target pole 100 inside the building, and generates “survey data.” Then, the “survey data” is transmitted to the operator terminal 300.

[0026] As shown in FIGS. 1 and 2, the operator terminal 300 is operated by an operator and is a computer equipped with a CPU (processor), a storage device, and a communication interface. The operator terminal 300 may be operated inside or outside the building. Functionally, the operator terminal 300 has as its main components a memory unit that stores "design drawing data" including building design information, a communication unit that sends and receives various data to and from the surveying device 200, and a design drawing generation unit that generates "design drawing data" based on user input. These are composed of a CPU (processor), ROM, RAM, HDD, communication interface, various programs, etc.

[0027] 1, the operator terminal 300 acquires "survey data" from the surveying device 200. Then, based on the position information of the target pole 100 included in the "survey data" and the design information of the building included in the "design drawing data", the operator terminal 300 generates and stores position information of a known point (here, the center point of the marking line) in the coordinate system within the building. Furthermore, the operator terminal 300 acquires "survey data" from the surveying device 200 as the second surveying operation shown in Fig. 2. Then, it determines whether the position information of the target pole 100 contained in the "survey data" matches the position information of the marking line of the building contained in the "design drawing data". If the operator terminal 300 determines that the two match, the worker marks the marking line at the installation position of the target pole 100.

[0028] <Details of the surveying target support> As shown in FIGS. 1 to 9, the target support 1 is a jig that is installed at a surveying point and supports a target pole 100 that is detected by a surveying instrument 200. The target support 1 is a jig that combines a "pole support function" that supports the target pole 100 in a vertically aligned state, and a "guide function" that marks a marking line on the installation surface G. In other words, the target support 1 can be used as a support jig for surveying known points and for marking a marking line. The target support 1 may be a jig having only the above-mentioned "pole support function."

[0029] As shown in FIGS. 3 to 6, the target support 1 includes a pole support member 10 that supports the target pole 100, a connecting link 20, a rotating member 30, a bubble tube 40, and a base member 50. The target support 1 can be separated vertically and is composed of two parts: a base member 50 and an upper member (pole support member 10, connecting link 20, rotating member 30, and bubble tube 40) that can be attached to and detached from the base member 50. The support body 2 that is the main body of the target support 1 corresponds to the rotating member 30 and the base member 50.

[0030] As shown in FIGS. 3 to 7, the pole support member 10 is a member (block body) having a substantially rectangular parallelepiped shape that supports the lower portion (ferrule part 101a) of the target pole 100. As shown in FIGS. The pole support member 10 has a horizontally long support body portion 11, a support hole 12 formed in the center of the upper surface of the support body portion 11 and allowing the lower portion of the target pole 100 to pass through, and an axial hole 13 formed on both end surfaces of the support body portion 11 in the longitudinal direction.

[0031] The support hole 12 is a substantially circular through-hole, and is a support portion that supports the target pole 100. The support hole 12 is formed to be slightly wider than the ferrule 101a of the target pole 100. For example, the diameter of the support hole 12 is approximately 9.1 mm, and the diameter of the ferrule 101a is approximately 9 mm. A second shaft bolt 24 is fastened into the shaft hole 13 (shaft fastening hole) so as to sandwich the upper end of the connecting link 20 therebetween.

[0032] As shown in FIGS. 3 to 7, the connecting link 20 is an oval-shaped connecting member that connects the pole support member 10 and the rotating member 30 in the vertical direction. The connecting links 20 are provided at both ends of the pole support member 10 in the longitudinal direction, and are attached so as to sandwich the pole support member 10 and the rotating member 30 therebetween. The connecting link 20 connects the pole support member 10 to the rotating member 30 so that the pole support member 10 can rotate about an axis along the horizontal direction, and holds the pole support member 10 in a predetermined position.

[0033] Specifically, as shown in Figures 6 and 7, the connecting link 20 has a link body 20a that is long in the vertical direction, an axial bolt 21, a biasing spring 22, and a washer 23 attached to the lower end of the link body 20a, and a second axial bolt 24, a biasing spring 25, and a washer 26 attached to the upper end of the link body 20a. The shaft bolt 21 extends in the width direction of the target support 1 and connects the link body 20a and the rotating member 30. The second shaft bolt 24 also extends in the width direction of the target support 1 and connects the link body 20a and the pole support member 10. The biasing spring 22 is a disc spring, which is attached to the threaded portion of the shaft bolt 21 and biases the connecting link 20 (link body 20a) so as to press it toward the rotating member 30 side. The biasing spring 25 is also a disc spring, and is assembled to the threaded portion of the second shaft bolt 24 to bias the connecting link 20 toward the pole support member 10 side.

[0034] 4, the connecting link 20 connects the pole support member 10 to the rotating member 30 so that the pole support member 10 can rotate about the shaft bolt 21. The pole support member 10 is held in a predetermined position by the biasing spring 22 and the washer 23. The connecting link 20 connects the pole support member 10 to the link body 20a so that the pole support member 10 can rotate about the second shaft bolt 24. The biasing spring 25 and the washer 26 hold the pole support member 10 in a predetermined position. That is, the worker can rotate the pole support member 10 against the biasing force of the biasing springs 22, 25. At this time, the worker can rotate the pole support member 10 by gripping the target pole 100 supported by the pole support member 10 and moving the target pole 100. When the worker releases the target pole 100 at a predetermined position, the pole support member 10 and the target pole 100 are held in the predetermined position by the biasing force of the biasing springs 22, 25. That is, the target pole 100 stops at the predetermined position.

[0035] As shown in FIGS. 3 to 7, the rotation member 30 is a substantially ring-shaped member (block body) that supports the pole support member 10 from below. The rotation member 30 is disposed so as to surround the lower portion of the target pole 100, and can rotate the pole support member 10, the connecting link 20 and the target pole 100 around an axis along the vertical direction.

[0036] Specifically, as shown in Figures 5 and 6, the rotating member 30 has a rotating main body portion 31, an opening 32 provided in the center of the rotating main body portion 31 for allowing the target pole 100 to pass through in the vertical direction, an axial hole 33 formed on both end faces of the rotating main body portion 31 in the width direction, and an assembly hole 34 formed on the top surface of the rotating main body portion 31. At both end faces in the width direction of the rotary main body 31, cut surfaces 31a (flat surfaces) cut in the vertical direction are formed, and a shaft hole 33 is formed in the cut surfaces 31a. The shaft bolt 21 is fastened to the shaft hole 33 (shaft fastening hole) so as to sandwich the lower end of the connecting link 20 therebetween. A bubble tube 40 is attached to the attachment hole 34 by, for example, an attachment pin.

[0037] As shown in Figure 5, the rotating member 30 (rotating main body 31) rotates around an axis along the vertical direction, thereby allowing the pole support member 10, connecting link 20 and target pole 100 to rotate horizontally. More specifically, the inner edge of the lower end of the rotating member 30 and the positioning portion 52 of the base member 50 are engaged in the vertical direction, and the rotating member 30 rotates horizontally along the outer periphery of the positioning portion 52 on the upper surface of the base member 50.

[0038] With the above configuration, the worker can rotate the pole support member 10 horizontally. At this time, the worker can grasp the target pole 100 supported by the pole support member 10 and move the target pole 100 to horizontally rotate the pole support member 10. When the worker releases the target pole 100 at a predetermined position, the pole support member 10 and the target pole 100 are held in the predetermined position.

[0039] As shown in FIGS. 3 and 6, the bubble tube 40 is a level using a bubble, and determines the horizontal position (horizontal state) of the rotating member 30. Specifically, vial 40 is a uniaxial level housed in a holder, and determines the horizontal position (horizontal state) of the mounting surface of vial 40 in the uniaxial direction. When placing the upper member (rotating member 30, connecting link 20, pole support member 10) on the base member 50, the worker can check the bubble tube 40 to ensure that the upper member is placed in a horizontal position (horizontal state).

[0040] With the above configuration, as shown in FIG. 3, the target support 1 can position the target pole 100 at the surveying point and support the target pole 100 in a state aligned in the vertical direction. 3 is a diagram showing a state in which the target support 1 and the target pole 100 are installed on a horizontal plane, and the pole support member 10 is in the "reference position."

[0041] 8 and 9, even when the target support 1 and target pole 100 are installed on an inclined surface, the target support 1 can erect the target pole 100 and hold the target pole 100 in a vertical position by rotating the pole support member 10 horizontally and around an axis along the horizontal direction. At this time, the target support 1 can hold (fix) the pole support member 10 in a predetermined position by the connecting link 20 (the biasing force of the biasing springs 22, 25). Generally, the target pole 100 has an eccentric structure that tilts in one horizontal direction. Therefore, by utilizing the characteristics of the target pole 100 and arranging the target pole 100 so that it tilts toward the higher side of the inclined surface, for example, the target support 1 (pole support member 10) can more stably hold the target pole 100 in a vertical position.

[0042] The base member 50 is a block body that is placed on the installation surface G, as shown in FIGS. The base member 50 has a disk-shaped base main body portion 51, a positioning portion 52 that protrudes upward from the upper surface of the base main body portion 51 and engages with the lower end portion of the rotating member 30, and a circular central recess portion 53 that is formed in the center of the base main body portion 51 and recessed downward. A central hole 54 and a guide hole 55 are formed on the upper surface of the central recess 53. A plurality of protrusions 56 and second guide holes 57 are formed on the outer edge of the base main body 51.

[0043] The positioning portion 52 is a protruding portion that protrudes from the base main body portion 51 in a frame shape. The positioning portion 52 engages with the inner edge of the lower end of the rotation member 30 to position the rotation member 30 relative to the base member 50 .

[0044] The center hole 54 is a circular hole formed in the center of the base body 51 so as to penetrate in the vertical direction, and supports the tip of the target pole 100 (ferrule 101a). 3 and 6, the center hole 54 and the support hole 12 are arranged at positions that overlap when viewed from above. The center hole 54 and the support hole 12 support the target pole 100 in a state that is aligned in the vertical direction.

[0045] Guide hole 55 is a through hole extending horizontally in a cross shape from center hole 54, and is a hole for marking a marking line. For example, an operator can mark a marking line by running a marking pen along guide hole 55. The guide holes 55 are exposed to the outside when the upper members (pole support member 10, connecting link 20, rotating member 30) are removed from the base member 50. This makes it possible to easily mark the marking line by using the guide holes 55 by removing the rotating member 30 from the base member 50.

[0046] The protrusion 56 is a portion that protrudes outward in the horizontal direction from the outer edge of the base main body 51 . More specifically, the protrusions 56 are provided at the center of each side of the base main body 51, and protrude outward from the base main body 51. The protrusions 56 are each disposed on an extension of the guide holes 55. The second guide hole 57 is provided in the center of the protrusion 56 in the width direction, and is formed along an extension of the guide hole 55 . The second guide hole 57 is a guide for aligning with the marking line, and unlike the guide hole 55, is provided in a state where it is always exposed to the outside.

[0047] By using the second guide holes 57, the target support 1 can be installed with high precision along the marking line L that is marked in advance on the installation surface G, as shown in FIG. 2, by using the second guide hole 57, it is also possible to easily mark a new marking line on the installation surface G. As described above, when using the second guide hole 57, it is not necessary to remove the upper members (the rotating member 30, the connecting link 20, and the pole support member 10) from the base member 50.

[0048] By using the target support 1, it is possible to position the target pole 100 at the surveying point with a simple configuration and to support the target pole 100 in a vertical state. In other words, the target support 1 can move the target pole 100 three-dimensionally and hold it in a predetermined position. Furthermore, it is possible to easily mark a marking line at a surveying point while the target support 1 (base member 50) remains installed at the surveying point.

[0049] <Other embodiments> In the above embodiment, as shown in Figure 4, the target support 1 is configured to be separable into an upper member (pole support member 10, connecting link 20, rotating member 30) and a base member 50, but this is not particularly limited. For example, the target support 1 may be an integral jig that cannot be separated into multiple parts.

[0050] In the above embodiment, as shown in Figures 4 and 5, the target support 1 can erect the target pole 100 by rotating the pole support member 10 horizontally and rotating it around an axis along the horizontal direction, but this is not particularly limited. For example, the target support 1 may have a structure that rotates the pole support member 10 around an axis along the horizontal direction and supports the pole support member 10 at a predetermined position. In other words, the target support 1 does not have to have a structure that rotates the pole support member 10 horizontally. Furthermore, for example, the target support device 1 may be configured so that the pole support member 10 can be rotated around the axial bolt 21 as the center of rotation, and may not be configured so that the pole support member 10 can be rotated around the second axial bolt 24 as the center of rotation. Alternatively, the target support device 1 may be configured so that the pole support member 10 can be rotated around the second axial bolt 24 as the center of rotation, and may not be configured so that the pole support member 10 can be rotated around the axial bolt 21 as the center of rotation.

[0051] In the above embodiment, the surveying system according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0052] S Surveying System 1 Target support (survey target support) 2 Support body 10 Pole support member 11 Support body part 12 Support holes 13 Shaft hole 20 Connecting link (connecting member) 20a Link body 21 Axle bolt 22 Bias spring (disc spring) 23 Washer 24 Second axis bolt 25 bias spring 26 Washer 30 Rotating member 31 Rotating main body 31a Cut surface 32 Opening 33 Shaft hole 34 Assembly holes 40 Bubble tube 50 Base material 51 Base body 52 Positioning part 53 Central recess 54 Center hole 55 Guide hole 56 Protrusion 57 Second guide hole 100 Target Pole (Prism Pole) 101 Paul 101a Ferrule 102 Holder 103 Target (Prism) 104 Bubble tube 200 Surveying equipment (total station) 201 Device body 202 Controller 300 Operator Terminal G Installation surface L Marking line

Claims

1. 1. A surveying target support for supporting a target pole having a target to be detected by a surveying instrument, comprising: a support body to be installed at a surveying point; a pole support member attached to the support body and supporting a lower portion of the target pole; a connecting member that connects the pole support member to the support device main body so that the pole support member can rotate about an axis along the horizontal direction and holds the pole support member in a predetermined position, The surveying target support device is characterized in that it positions the target pole at a surveying point and supports the target pole in a vertical direction by rotating the pole support member.

2. The pole support member is disposed at a position higher than the support body, 2. The surveying target support according to claim 1, wherein the connecting member is a connecting link that connects the support body and the pole support member in the vertical direction and connects the pole support member rotatably.

3. The support body includes a rotating member that rotates the pole support member around an axis along the vertical direction, the connecting member connects the rotating member and the pole support member in the vertical direction and connects the pole support member to be rotatable around an axis along the horizontal direction; 2. The surveying target support tool according to claim 1, wherein the rotating member rotates the pole support member and the connecting member around an axis extending in the vertical direction.

4. the rotating member is provided at a horizontal center of the rotating member, has an opening through which the target pole passes in a vertical direction, and is arranged to surround a lower portion of the target pole; 4. The surveying target support tool according to claim 3, wherein the rotating member rotates the pole support member and the connecting member by rotating about an axis extending in the vertical direction.

5. the support body is installed at the surveying point and includes a base member that detachably supports the rotating member; The surveying target support tool according to claim 3 or 4, characterized in that the base member has a base main body portion and a positioning portion provided on the upper surface of the base main body portion and engaging with the lower end portion of the rotating member.

6. the support body includes a base member that is installed at the surveying point; The base member has a central hole formed in the center of the base main body portion so as to penetrate in the vertical direction and support the tip of the target pole, and a guide hole extending horizontally from the central hole and for marking a marking line, 5. The surveying target support tool according to claim 1, wherein the guide hole is exposed to the outside when the pole support member is removed.

7. the base member has a protrusion that protrudes outward in a horizontal direction from an outer edge of the base main body, The protrusion is The guide hole is provided on the outer edge of the base body at a position on an extension line of the guide hole.

7. A surveying target support tool according to claim 6, further comprising a second guide hole formed along an extension of said guide hole for aligning with a marking line.

Images