Surveying target device

Abstract

To provide a target device for survey that is easier to handle and has a high positioning accuracy.SOLUTION: A target device 100 for survey comprises: a support plate 101; a movable plate 111 that is placed on a support plate 101 and is freely movable sliding in a horizontal direction; an optical unit 116 including a reflection prism 114 and a laser pointer 115; and a universal joint 113 for connecting the movable plate 111 and the optical unit 116. The universal joint 113 connects the movable plate 111 and the optical unit 116 in a state of keeping an optical axis of the laser pointer 115 in a vertical direction.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a surveying target device. [Background technology]

[0002] At construction sites and civil engineering sites, positioning work is carried out to identify points whose coordinates are specified on a drawing on the actual ground or floor surface. This work is carried out using surveying equipment such as a total station and a surveying target device.

[0003] The simplest surveying target device has a structure in which a reflecting prism is attached to the top of a rod. In the above positioning work, the position of the reflecting prism of this surveying target device is measured by a surveying device, the target position is determined, and the tip of the vertical rod is used to point to the corresponding position on the floor or ground and mark it. Regarding this surveying target device, the ones described in Patent Document 1 and Patent Document 2 are publicly known. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent No. 5833335 [Patent Document 2] Japanese Patent No. 6456149 Summary of the Invention [Problem to be solved by the invention]

[0005] The above-mentioned survey target device is required to be easy to handle and to have high positioning accuracy. In this respect, the currently used target device is insufficient. Therefore, the present invention has an object to provide a survey target device which is easier to handle and has high positioning accuracy. [Means for solving the problem]

[0006] The present invention includes a support part, a movable member placed on the support part and capable of freely moving by sliding horizontally, an optical part having a retroreflector and a laser pointer, and a connecting part connecting the movable member and the optical part. Material and the connecting portion Material The movable member and the optical unit are connected together while maintaining the optical axis of the laser pointer in a vertical direction. The connecting member can be rotated in an eccentric state with respect to the movable member. It is a surveying target device.

[0007] The present invention relates to A support part, a movable member placed on the support part and capable of freely moving by sliding horizontally, an optical part having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical part, The connecting portion Material The movable member and the optical unit are connected together while maintaining the optical axis of the laser pointer in a vertical direction. 、 The laser pointer irradiates a laser point light in a vertically downward direction, the connecting member is a universal joint, and the universal joint Continued The movable member and the optical element are moved by hand. Department are coupled together, Department The surveying target device is provided with an extension member that detours horizontally from the movable member to above the movable member, and another laser pointer that is fixed to the extension member and irradiates a laser point light upward coaxially with the laser pointer.

[0008] The present invention relates to The present invention includes a support section, a movable member placed on the support section and capable of sliding horizontally and freely moving, an optical section having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical section, the connecting member connecting the movable member and the optical section while maintaining the direction of the optical axis of the laser pointer in a vertical direction, The laser pointer emits laser point light in a vertically downward direction, and the connecting member is a gimbal mechanism with two perpendicular axes, and a vertical support member that supports the optical unit vertically from above is supported by the gimbal mechanism, and the surveying target device is equipped with another laser pointer that is fixed to the vertical support member and emits laser point light in an upward direction coaxially with the laser pointer.

[0009] The present invention relates to The present invention comprises a support part, a movable member placed on the support part and freely movable by sliding in a horizontal direction, an optical part having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical part, the connecting member connecting the movable member and the optical part while maintaining the direction of the optical axis of the laser pointer in a vertical direction, the connecting member being a universal joint, The movable member holds a support shaft that supports the universal joint from above, and the support portion has an opening through which the support shaft passes downward, and the inner edge of the opening has a notch into which the support shaft fits.This is a surveying target device.

[0010] In the present invention, the support shaft has an expanded diameter portion that is relatively expanded in diameter and a contracted diameter portion that is relatively contracted in diameter, the cutout portion has a shape with a relatively narrow entrance and a relatively wide interior, the diameter of the expanded diameter portion is a dimension that does not allow it to pass through the entrance from the horizontal direction, and the diameter of the contracted diameter portion is a dimension that can pass through the entrance from the horizontal direction.

[0011] The present invention relates to The present invention includes a support section, a movable member placed on the support section and capable of sliding horizontally and freely moving, an optical section having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical section, the connecting member connecting the movable member and the optical section while maintaining the direction of the optical axis of the laser pointer in a vertical direction, This is a surveying target device in which an opening is provided in the support portion, a protrusion is provided on the underside of the movable member, and a recess or hole is provided on the inner edge of the opening into which the protrusion fits.

[0012] The present invention relates to The present invention includes a support section, a movable member placed on the support section and capable of sliding horizontally and freely moving, an optical section having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical section, the connecting member connecting the movable member and the optical section while maintaining the direction of the optical axis of the laser pointer in a vertical direction, A longitudinal member is fixed to the lower part of the movable member, and the support part is provided with: top and bottom An opening having a longitudinal shape penetrating the longitudinal direction is provided, and when viewed from the horizontal direction, the longitudinal member is located at a position overlapping the opening, and the longitudinal length of the longitudinal member is perpendicular to the longitudinal direction of the opening. Exchange From the dimension in the direction big It is a surveying target device.

[0013] The present invention relates to The present invention includes a support section, a movable member placed on the support section and capable of sliding horizontally and freely moving, an optical section having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical section, the connecting member connecting the movable member and the optical section while maintaining the direction of the optical axis of the laser pointer in a vertical direction, A magnet is disposed under the support portion, and a magnetic member is fixed to the movable member at a position spaced downward. The movable member is moved upward and the magnetic member is fixed to the magnet by magnetism, thereby supporting the movable member. Department It is a surveying target device that can be fixed to a target.

[0014] The present invention relates to The present invention includes a support section, a movable member placed on the support section and capable of sliding horizontally and freely moving, an optical section having a retroreflector and a laser pointer, and a connecting member connecting the movable member and the optical section, the connecting member connecting the movable member and the optical section while maintaining the direction of the optical axis of the laser pointer in a vertical direction, a rotating member rotatable on the movable member; and an optical unit engaged with the rotating member in a state in which the optical unit is movable in a direction away from a rotation center of the rotating member. Department a support member, the movable member being provided with the optical Department A movement restriction structure is provided to restrict the movement of the support member to a specific direction, and the rotation center of the rotating member is a fulcrum, the engagement position is a point of application, and a specific part of the rotating member is a point of application. forceA lever is formed with a fulcrum and a force point, and a distance between the fulcrum and the force point is greater than a distance between the fulcrum and the action point. By moving the force point, the optical Department A surveying target device in which a support member moves in a specific direction relative to the movable member.

[0015] The present invention relates to a support part, a movable member that can rotate on the support part and has an opening that can be opened up and down, a slider that can move above the opening in the movable member while contacting the movable member, a support shaft that is held by the slider and extends downward from the opening, and a connecting part connected to the support shaft. Material A retroreflector and a laser pointer are suspended and held via the connecting portion. Material is a surveying target device that connects the support shaft to the retroreflector and the laser pointer while maintaining the direction of the optical axis of the laser pointer in a vertical direction.

[0016] The present invention relates to 1. A support portion and the 1. A first rotating part that can rotate horizontally with respect to a support part, a second rotating part that can rotate horizontally with respect to the first rotating part around a position other than the rotation center of the first rotating part, and a second rotating part that is held at a position other than the rotation center of the second rotating part. Second A support portion and the Second Connection part to support part Material A retroreflector and a laser pointer are suspended and held via the connecting portion. Material The laser pointer is rotated in a vertical direction while the optical axis of the laser pointer is maintained in a vertical direction. Second A surveying target device that connects a support part to the retroreflector and a laser pointer.

[0017] The present invention relates to a robot that includes a support part, an arm that is connected to the support part via a joint part and is capable of horizontal rotation and vertical rotation, and a joint part connected to the arm. Material A retroreflector and a laser pointer are suspended and held via the connecting portion. Materialis a surveying target device that connects the arm to the retroreflector and the laser pointer while maintaining the direction of the optical axis of the laser pointer in a vertical direction. Effect of the Invention

[0018] According to the present invention, a surveying target that is easier to handle and allows high positioning accuracy to be obtained is obtained. [Brief description of the drawings]

[0019] [Figure 1] FIG. [Diagram 2] 1A is a perspective view, FIG. 1B is a top view, and FIG. [Diagram 3] 1A and 1B are side views of an embodiment. [Figure 4] 1A is a side view and FIG. 1B is a top view of the embodiment. [Diagram 5] 1A is a top view and FIG. 1B is a side view of the embodiment. [Figure 6] 1A is a top view and FIG. 1B is a side view of the embodiment. [Figure 7] 1A and 1B are top views of an embodiment. [Figure 8] 1A is a side view, and FIG. 1B is a top view and FIG. [Figure 9] 1A and 1B are side views of an embodiment. [Figure 10] 1A and 1B are top views of an embodiment. [Figure 11] FIG. 2 is a top view of the embodiment. [Figure 12] FIG. [Figure 13] FIG. [Figure 14] 1A and 1B are top views and FIG. 1C is a side view of the embodiment. [Figure 15] 1A and 1B are top views of an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] 1. First embodiment (structure) Fig. 1 is a perspective view of a survey target device 100 according to an embodiment. In Fig. 1, when the survey target device 100 is installed substantially horizontally, the XY plane is the horizontal plane and the Z axis is the vertical axis. Note that the surface on which the target device 100 is installed is preferably horizontal, but does not necessarily have to be horizontal.

[0021] The survey target device 100 comprises a support plate (base plate) 101 serving as a base, and a movable part 110 which is a movable member capable of moving freely relative to the support plate 101. The support plate 101 is supported by support legs 120 installed on the floor or the ground. A tripod, a tripod with tires, a support structure with tires, or the like may be used in place of the support legs 120. The movable part 110 can be freely moved relative to the support plate 101 within the XY plane. This free movement is performed manually. The material of the support plate 101 is not particularly limited, but resin or metal, for example, is used.

[0022] The movable part 110 is capable of freely moving within the XY plane (horizontal plane) relative to the support plate 101. Free movement means that the movement is not restricted to a specific direction, but that the movement and rotation are possible in any direction within the plane. This structure has the advantage of being simpler and easier to move manually than a structure combining two axes such as an XY stage.

[0023] The above-mentioned freely movable structure is realized by the following structure: Movable portion 110 has a movable plate 111, a support shaft 112, a universal joint 113, a reflecting prism 114, and a laser pointer 115.

[0024] The movable plate 111 is a flat circular plate material provided with four holes (openings). The material of the movable plate 111 is not particularly limited, but for example, resin or metal is used. The movable plate 111 is placed on the support plate 101, and can be moved and rotated within the XY plane by sliding on the support plate 101. Since it is moved by sliding, there is no limit to the direction of movement of the movable plate 111 within the XY plane relative to the support plate 101, and it can be moved in any direction. Rotation and movement along a curved path are also possible. This enables the above-mentioned free movement.

[0025] A support shaft 112, which is a support member that suspends and holds an optical system 116 from above, is fixed to the center of the movable plate 111 via a universal joint 113. The support shaft 112 is a rod-shaped member that extends in a direction perpendicular to the movable plate 111. The support shaft 112 passes through a rectangular opening (hole) 102 formed in the support plate 101 facing downward.

[0026] The optical system 116 is composed of a reflecting prism 114 and a laser pointer 115. The universal joint 113 functions to maintain the optical axis of the laser pointer 115 always pointing vertically downward with two perpendicular axes. The universal joint 113 ensures that the reflecting prism 114 and the laser pointer 115 always maintain a positional relationship lined up vertically.

[0027] The reflecting prism 114 is an example of a retroreflector, and reflects an incident light beam by inverting it 180° in the direction of incidence. The reflecting prism 114 is a commercially available one for surveying. In addition to the reflecting prism, a retroreflector using glass beads can be used. A sheet-like retroreflector or a paint exhibiting retroreflection properties can also be used. This is the same for the other embodiments. The laser pointer 115 is an example of a light indicating device that uses a bright point of a reflection point of an indication light (point light) as an indication point. The laser pointer 115 is always directed vertically downward even if the movable plate 116 is tilted due to the function of the universal joint 113, and irradiates a laser point light in that direction.

[0028] The universal joint 113 has an upper first part and a lower second part connected by two axes, with the first part fixed to the lower end of a support axis 112 which passes through and is fixed to the center of the movable plate, and the second part fixed to the top of a reflecting prism 114.

[0029] Here, the weight of optical system 116 acts on the second part of universal joint 113 with a force pulling it vertically downward, and even if the first part is not vertical, this force pulls the second part vertical due to the function of the universal joint, so that the optical axis of laser pointer 115 always faces vertically downward.

[0030] The universal joint 113 has a variety of structures, and is not limited to a specific structure as long as the suspended optical system 116 is always facing downward. Known universal joint structures include a Cardan joint, a Rzeppa joint, and various structures based on these. For example, a ball mechanism may be used as the universal joint 113.

[0031] (Usage form) Here, an example will be described in which marking is performed on a floor surface. In this example, a surveying device (not shown) having a total station function, a terminal (not shown) having a guide function, and a surveying target device 100 are used.

[0032] First, the surveying target device 100 is placed at the approximate position where marking is to be performed. Then, the position of the reflecting prism 114 is measured by the surveying device. The positioning data obtained by this surveying device is transmitted to the terminal. The terminal calculates the direction of the target position from the difference between the measured position of the reflecting prism 114 and the target position, and displays this direction on the display. Looking at this display, the worker manually moves the movable plate 111 and adjusts it so that the position of the reflecting prism 114 measured by the surveying device becomes the target position.

[0033] When the position of the reflecting prism 114 reaches the target position, a mark is made on the point on the floor indicated by the laser light of the laser pointer 115.

[0034] In the above operation, the worker slides and moves the movable plate 111 horizontally on the support plate 101, and adjusts the horizontal position of the reflecting prism 114 to a target position.

[0035] (Advantages) The structure is extremely simple, without using a gear mechanism or the like, and allows easy fine adjustment of the position of the reflecting prism 114. In addition, the movable plate 111 remains stable even if you let go of it. In addition, clamping (fixing operation) after alignment is not required.

[0036] 2. Second embodiment Below, a modified version of the movable plate 111 in the first embodiment, which is provided with a fine movement mechanism for the support shaft 112 on the movable plate 111, will be described. Fig. 2 shows a perspective view (A), a top view (B), and a side cross-sectional view (C) of this embodiment. Here, the movable plate 111' in Fig. 2 is used instead of the movable plate 111 in Fig. 1. The rest is the same as in Fig. 1.

[0037] The movable plate 111' shown in Fig. 2 has a base movable plate 121, a disk 122, and an eccentric plate 123. The base movable plate 121 is disk-shaped and has a circular opening 121a (see Fig. 2(C)) in the center. The center of the circular opening 121a coincides with the center of the circular base movable plate 121. The base movable plate 121 is placed on the support plate 101 in Fig. 1 in a similar state to the movable plate 111, and can be slid on the support plate 111 to freely move in a direction parallel to the support plate 111 (horizontal direction).

[0038] The disk 122 has a plate-like disk shape, and is held in a relatively rotatable state on the movable base plate 121. The center of rotation of the disk 122 coincides with the center of the movable base plate 121, which is circular.

[0039] The inner edge of the circular opening 121a of the base movable plate 121 has a step structure that supports from below the outer edge of the disk 122. The side and bottom surfaces of the outer edge of the disk 122 slide against the base movable plate 121 at this step structure, allowing the disk 122 to rotate relative to the base movable plate 121.

[0040] The position of the center of rotation of the disk 122 is moved by moving the base movable plate 121 on the support plate 101 of FIG.

[0041] A circular eccentric plate 123 is rotatably held on the disk 122. The center of rotation of the eccentric plate 123 coincides with the center of the circular eccentric plate 123, but does not coincide with the center of rotation of the disk 122. A circular opening 122a is provided on the disk 122. The center of this opening 122a coincides with the center of rotation of the eccentric plate 123. On the other hand, the center of the opening 122a does not coincide with the center of rotation of the disk 122, and the two are misaligned.

[0042] The underside of the outer edge of eccentric plate 123 has a step structure, and this step structure portion is held by resting on the edge portion of the inner edge of circular opening 122a of disk 122. The outer edge of eccentric plate 123 slides against disk 122 at this step portion, allowing eccentric plate 123 to rotate relatively to disk 122.

[0043] A support shaft 112 is fixed in a state in which it penetrates vertically at a position off the center of rotation of the eccentric plate 123. An optical system 116 is suspended from the lower end of the support shaft 112 via a universal joint 113 in a structure similar to that in FIG. 1 (not shown in FIG. 2).

[0044] (function) When the disk 122 is rotated, the center of rotation of the eccentric plate 123 moves on a circumference centered on the center of rotation of the disk 122. On the other hand, when the eccentric plate 123 is rotated, the support shaft 112 moves on a circumference centered on one point on the circumference.

[0045] As a result, by combining the rotation of the disk 122 and the rotation of the eccentric plate 123, it is possible to move the support shaft 112 within the range of the circular dashed line 124 in Fig. 2(B). In addition, by moving the movable plate 111' on the support plate 101 (see Fig. 1), the position of the circle enclosed by the dashed line 124 moves relative to the support plate 101.

[0046] For example, by moving the movable plate 111' on the support plate 101, the horizontal position of the support shaft 112 (the horizontal position of the reflecting prism 114 in Figure 1) is roughly aligned, and then, by rotating the disk 122 and the eccentric plate 123, the horizontal position of the support shaft 112 (the horizontal position of the reflecting prism 114 in Figure 1) is precisely aligned.

[0047] 3. Third embodiment In the second embodiment, it is also possible to adopt a configuration in which the base movable plate 121 is fixed and the movement of the support shaft 112 in the horizontal plane is performed only by the rotation of the disk 122 and the eccentric plate 123. In this case, the portion of the base movable plate 121 has a fixed structure and does not rotate with respect to the supporting leg of the tripod or the like.

[0048] 4. Fourth embodiment The structure in Figure 1 can also be used for a structure that projects a laser pointer light (laser point light) upward. This example can be used, for example, when you want to mark the position of a point on the ceiling.

[0049] An example of the structure for this case is shown in Figure 3. In this structure, one end of a U-shaped arm 131 is fixed to the lower part of the universal joint (the movable part on the side of the reflecting prism 114) or to the upper part of the reflecting prism 114.

[0050] The arm 131 is integrated with the reflecting prism 114 and the laser pointer 115. The arm 131 has a horizontal extension 131a, a vertical extension 131b, and a horizontal extension 131c. The vertical extension 131b extends above the movable plate 111 through an opening 132 provided in the movable plate 111. An upper laser pointer 133 that irradiates a laser point light upward is fixed to the horizontal extension 131c.

[0051] Here, the dimensions and positional relationship between horizontal extension portion 131a and horizontal extension portion 131c, and the position of laser pointer 133 in horizontal extension portion 131c are adjusted so that the optical axis of lower laser pointer 115 and the optical axis of upper laser pointer 133 are aligned on the same line.

[0052] 3(B) shows a case where the movable plate 111 is not horizontal but tilted. In this case, the universal joint 113 functions to keep the lower laser pointer 115 pointing vertically downward. The arm 131 integrated with the reflecting prism 114 and the laser pointer 115 is also not affected by the tilt of the movable plate 111, and the universal joint 113 keeps the vertical extension 131b vertical.

[0053] This structure makes it possible to irradiate the laser point light vertically downward and vertically upward.

[0054] As described above, FIG. 3 shows a structure including movable plate 111 which is a movable member, support shaft 112 which is fixed to movable plate 111 and extends downward therefrom, universal joint 113 which is a connecting member connected to support shaft 112, reflecting prism 114 which is suspended and held by universal joint 113, laser pointer 115 which irradiates laser point light in a vertically downward direction, arm 131 which is fixed to reflecting prism 114 and laser pointer 115 and which detoures horizontally from reflecting prism 114 and laser pointer 115 to above movable plate 111, and laser pointer 133 which is fixed to the upper end of arm 131 and irradiates laser point light in an upward direction, and laser pointer 133 is positioned coaxially with laser pointer 115 so as to irradiate laser point light in an upward direction.

[0055] It is also possible to provide another arm having a similar structure to arm 131 at a symmetrical angular position as viewed from the vertical direction, thereby equalizing the weight balance in the horizontal direction. For example, a structure in which arms similar to arm 131 are provided at two positions 180° apart as viewed from the vertical direction can be given.

[0056] Fig. 4 shows another example having the same function as that of Fig. 3. In this case, an opening 141 is provided in the center of movable plate 111, and support shaft 112 passes through opening 141 from top to bottom. Support shaft 112 is attached to movable plate 111 by a two-axis (two degrees of freedom) gimbal mechanism 142 combining two gimbals whose rotation axes are perpendicular to each other. A reflecting prism 114 and a lower laser pointer 115 are fixed below support shaft 112, and an upper laser pointer 133 is fixed above support shaft 112.

[0057] Even if the movable plate 111 is tilted from the horizontal, the gimbal mechanism 142 functions to keep the support shaft 112 vertical.

[0058] As described above, Figure 3 shows a structure in which support shaft 112 is held vertically on movable plate 111 by gimbal mechanism 142 with two perpendicular axes, reflecting prism 114 and lower laser pointer 115 are held below support shaft 112, and upper laser pointer 133 is held above support shaft 112 in a position on the same optical axis as laser pointer 115.

[0059] The configuration of this embodiment can also be used to irradiate the laser point light only upward. In this case, the lower laser pointer 115 can be removed.

[0060] 5. Fifth embodiment In this example, an example will be described in which the movable part 110 can be provisionally fixed (temporarily fixed) to the support plate 101 in the configuration of Fig. 1. During work, it is necessary to carry the survey target device 100. In this case, if the movable part 110 is in a free state, there is a concern that the movable part 110 will move relative to the support plate 101 and, for example, the reflecting prism 114 or the laser pointer 115 will hit something.

[0061] To avoid such a situation, it would be convenient if the movable part 110 could be temporarily fixed to the support plate 101. This embodiment relates to a structure that can temporarily fix the movable part 110 to the support plate 101. An overview of this embodiment is shown in Figure 5. In this example, a notch 161 is provided on the inner edge (inner edge) of the opening 102 of the support plate 101.

[0062] The number of cutout portions 161 is not limited to the number shown in the figure, and may be one or two or more. The cutout portion 161 has a shape into which the support shaft 112 fits. In the example of FIG. 5, the support shaft 112 is provided with an expanded diameter portion 112a having a relatively large diameter and a reduced diameter portion 112b having a relatively small diameter. The cutout portion 161 has a shape in which a circle is missing, and the opening width of the entrance portion is narrower than the inner diameter. Here, the reduced diameter portion 112b can pass through the entrance of the cutout portion 161, but the expanded diameter portion 112a cannot pass through, and the expanded diameter portion 112a fits into the cutout portion 161.

[0063] In this case, the movable part 110 is temporarily fixed to the support plate 101 as follows. First, the movable part 110 is lifted slightly, and the reduced diameter part 112b is moved horizontally so that the reduced diameter part 112b is inserted into the opening of the cutout part 161. Then, the movable part 110 is lowered downward so that the expanded diameter part 112a is fitted into the cutout part 161.

[0064] The enlarged diameter portion 112a cannot be removed from the notch portion 161 in the horizontal direction while being fitted into the notch portion 161. Therefore, in this state, the movable portion 110 is temporarily fixed to the support plate 101, and it is possible to prevent the movable portion 110 from becoming unstable when the survey target device 100 is transported.

[0065] To release the above-mentioned temporarily fixed state, the movable part 110 is lifted slightly, and the enlarged diameter part 112a is removed upward from the notch part 161. Then, the reduced diameter part 112b is moved horizontally outward from the entrance of the notch part 161 (toward the inside of the opening part 102), and thereafter the movable part 110 is lowered, and the movable plate 111 is brought into contact with the support plate 101 from above.

[0066] The positions and number of the cutouts 161 are not limited to those shown in the drawings. By machining the openings of the cutouts 161 into a tapered shape, it becomes easier to fit the support shaft 112 in.

[0067] As described above, Fig. 5 shows a structure in which support shaft 112 is fixed to movable plate 111, support plate 101 is provided with opening 102 through which support shaft 112 penetrates downward, and notch 161 into which support shaft 112 fits is provided on the inner edge of opening 102. Fig. 5 also shows a structure in which support shaft 112 has expanded diameter portion 112a with a relatively expanded diameter and contracted diameter portion 112b with a relatively contracted diameter, notch 161 has a shape with a relatively narrow entrance and a relatively wide interior, the diameter of expanded diameter portion 112a is a dimension that does not allow passage through said entrance from the horizontal direction, and the diameter of contracted diameter portion 112b is a dimension that allows passage through said entrance from the horizontal direction.

[0068] 6. Sixth embodiment Another example of a structure that can achieve the same effects as the fifth embodiment will be described. An outline of this embodiment is shown in Figures 6 and 7. In this example, two protrusions 171 and 172 are provided on the lower surface of the movable plate 111 in Figure 1.

[0069] On the other hand, recesses 173, 174 into which the protrusions 171, 172 fit are provided on the inner edge of the opening 102 of the support plate 101. The recesses 173, 174 are provided at the center of the opening 102 in the longitudinal direction.

[0070] When temporarily fixing the movable part 110 to the support plate 101, the movable plate 111 is rotated and the protrusions 171, 172 are fitted into the recesses 173, 174 (FIG. 7(A)). When releasing the temporary fixation, the movable plate 111 is rotated from the state of FIG. 7(A) to, for example, the state of FIG. 7(B). By changing to the state of FIG. 7(B), the movable plate 111 can be freely moved in the horizontal direction relative to the support plate 101. The recesses 173, 174 may have a concave cross-sectional shape with a bottom, or may be holes without a bottom.

[0071] It is also possible to use a structure in which recesses or holes are formed so that the protrusions 171, 172 can be dropped in from above and fitted in. In this case, unless the movable part 110 (movable plate 111) is lifted once in a state in which the protrusions 171, 172 are fitted in the recesses (holes), the movable part plate 111 cannot be removed from the support plate 101, and a stronger temporary fixing structure can be obtained.

[0072] In actual use, first, in the state shown in Fig. 7(A), that is, in the state where the movable plate 111 is temporarily fixed to the support plate 101, the survey target device 100 is moved by holding the support legs 120 in Fig. 1 by hand, and the rough positioning is performed. At this time, since the movable plate 111 is temporarily fixed to the support plate 101, the problem of the movable plate 111 moving unintentionally is avoided.

[0073] After performing the above rough alignment, the temporary fixation state of the movable plate 111 relative to the support plate 101 is released, and the movable plate 111 is slightly moved to perform fine adjustment of the alignment. At this time, the center position of the opening 102 becomes the starting point for the movement of the movable plate 111. By making the center position of the opening 102 the starting point for the movement of the movable plate 111, the movement of the movable plate 111 can be started from a position without bias when moving within the XY plane.

[0074] As described above, Figure 6 shows the support shaft 112, the opening 102 through which the support shaft 112 passes downward, the protrusions 171, 172 provided on the underside of the movable plate 111, and the recesses (or holes) 173, 174 provided on the inner edge of the opening 102 into which the protrusions 171, 172 fit.

[0075] 7. Seventh embodiment Another example that achieves the same effect as the fifth embodiment will be described. An outline of this embodiment is shown in Fig. 8. In this example, an elliptical stopper 175, which is an example of a long-shaped member, is provided on the lower surface of the movable plate 111 in Fig. 1. The elliptical stopper 175 is made of an elastically deformable material, or has a structure in which the outer edge is covered with a soft material (e.g., rubber). The dimension of the ellipse in the major axis direction is slightly larger than the dimension of the opening 102 in the short side direction.

[0076] By rotating the movable plate 111 and tensioning the major axis direction of the elliptical stopper 175 against the inside of the short side direction of the opening 102, the movable plate 111 (movable part 110) is temporarily fixed to the support plate 101 (the state shown in FIG. 8(B)).

[0077] To release the temporary fixation, the movable plate 111 is rotated and the long axis direction of the elliptical stopper 175 is shifted from the short side direction of the opening 102, thereby releasing the above-mentioned tensioned state and allowing the movable plate 111 to be moved relative to the support plate 101 (the state shown in Figure 8 (C)).

[0078] 8 shows a structure including elliptical stopper 175, which is a longitudinal member fixed to the lower part of movable plate 111, and opening 102 having a longitudinal shape (rectangle) provided in support plate 101, where elliptical stopper 175 and opening 102 overlap when viewed horizontally, and the longitudinal length of elliptical stopper 175 (length in the long axis direction of the ellipse) is smaller than the dimension in the direction perpendicular to the longitudinal direction of opening 102 (direction of the short side of the rectangular opening). A rectangular member with rounded corners or a rod-shaped member can also be used as the longitudinal member.

[0079] 8. Eighth embodiment Another example of a structure that can obtain the same effect as the fifth embodiment will be described below. In this embodiment, the movable part 110 is temporarily fixed to the support plate 101 by the magnetic force of a magnet. An outline of this embodiment is shown in FIG.

[0080] In this example, magnets (permanent magnets) 176 are arranged on the lower surface of the support plate 101. In Fig. 9, a pair of magnets 176 are embedded and fixed on the lower surface of the support plate 101. It is also possible to fix the magnets 176 without embedding them. Furthermore, the number of magnets 176 is not limited to two.

[0081] A magnetic plate 177, which is a disk made of a ferromagnetic material, is fixed to the support shaft 112 at a position spaced downward from the movable plate 111. A material that is easily attracted to a magnet, such as iron, is selected as the material for the magnetic plate 177. The shape of the magnetic plate 177 may be a ring shape or a longitudinal shape.

[0082] 9(A) shows a state in which the movable plate 111 is placed on the support plate 101. In this state, the magnetic plate 117 is separated in the vertical direction from the magnet 176. Also in this state, the movable plate 111 can be slid on the support plate 101 and moved freely in the horizontal direction, similar to the case of FIG.

[0083] The movable part 110 (movable plate 111) can be temporarily fixed to the support plate 101 as follows. First, from the state shown in FIG. 9(A), the upper part of the support shaft 112 is pinched with fingers and lifted up. Then, the magnetic plate 177 is brought into contact with the magnet 176 from below. As a result, the magnetic plate 177 is magnetically attracted to the magnet 176, resulting in the state shown in FIG. 9(B), where the movable part 110 (movable plate 111) is temporarily fixed to the support plate 101.

[0084] To release the above-mentioned temporary fixation state, from the state shown in Fig. 9(B), the support shaft 112 is pushed down by hand to separate the magnetic plate 177 and the magnet 176 in the vertical direction. As a result, the state shown in Fig. 9(A) is reached, where the movable plate 111 can be slid relative to the support plate 101 and moved freely in the horizontal direction.

[0085] As shown in FIG. 10, by providing a pair of magnets 176 near the center of the rectangular opening 102, the movable part 110 can be temporarily fixed near the center of the support plate 101.

[0086] As described above, Figure 9 shows a structure in which a magnet 176 is disposed below the support plate 101, a magnetic plate 177 is fixed to the movable plate 111 at a position spaced downward, and the movable plate 111 can be fixed to the support plate 101 by moving the movable plate 111 upward and magnetically fixing the magnetic plate 177 to the magnet 176.

[0087] 9. Ninth embodiment An overview of this embodiment is shown in Fig. 11. In this example, a ring-shaped support part 191 having an opening 192 is provided, and a ring-shaped annular movable part 181 is placed on the support part 191 in a slidable state. The support part 191 is supported by a supporting leg (not shown) such as a tripod. The annular movable part 181 has a longitudinal (rectangular) opening 181a, and is axially supported by the support part 191 at one end 182 of the longitudinal shape so as to be rotatable about the opening 181a.

[0088] A slider 183 is placed on the upper part of the annular movable part 181 with its upper body being capable of sliding. The slider 183 is shaped so as not to fall downward from the opening 181a. A support shaft 112 is fixed to the slider 183, and the lower part of the support shaft 112 passes downward through the opening 181a of the annular movable part 181 and the opening 192 of the support part 190, and extends further downward. As in the case of FIG. 1, a reflecting prism 114 and a laser pointer 115 are attached to the lower part of the support shaft 112 via a universal joint 113.

[0089] In this example, the position of the support shaft 112 is changed by manually moving the annular movable part 181 and the slider 183. The annular movable part 181 can rotate like a swinging head with the part indicated by reference numeral 182 as the center of rotation. The slider 183 can move linearly along the longitudinal direction of the annular movable part 181. By combining these two types of movement, the position of the support shaft 112 within the range of the opening 192 (in this case, a circular range) is adjusted.

[0090] As described above, Figure 11 shows a structure including support part 190 having opening 192 that opens up and down, annular movable part 181 which is a movable member having opening 181a that opens up and down and can rotate around position 182 off-center on support part 190, slider 183 which can move over opening 181a in annular movable part 181 while making contact with annular movable part 181, and support shaft 112 which is held by slider 183 and extends downward from opening 108a.

[0091] It is also possible to have a structure in which annular movable part 181 rotates around the center of opening 192. In this case, annular convex parts (rails) are provided on the upper surface of annular support part 191, and on the other hand, a concave part is arranged at a position of annular movable part 181 corresponding to the rail, so that annular movable part 181 can rotate around the center of opening 192. Here, it is also possible to reverse the relationship between the convex part and the concave part.

[0092] 10. Tenth embodiment A structure in which a reflecting prism and a laser pointer are held by using a support structure in which a plurality of arms are connected by joints is also possible. Fig. 12 shows a surveying target device 200. The surveying target device 200 has a vertical arm 201 that constitutes a part of a support leg on the ground or floor surface, a movable arm 203 connected to the vertical arm 201 by a joint 202, and a reflecting prism 205 and a laser pointer 206 suspended from the tip of the movable arm 203 via a universal joint 204.

[0093] The upper part of the vertical arm 201 is a horizontal rotation section 201a capable of horizontal rotation, and a joint section 202 is attached to this horizontal rotation section 201a. The joint section 202 holds a movable arm 203 in a state in which it can rotate in the elevation angle direction and depression angle direction. The position of the reflecting prism 205 is determined by rotating the movable arm 203 in a vertical plane (up and down) while rotating the horizontal rotation section 201a horizontally.

[0094] The structure of the joint unit 202 may be, for example, one that uses a ball or a shaft. The joint unit 202 includes a clamp mechanism that fixes the movable state, and can fix the state of the movable arm 203 after moving the movable arm 203. The number of joints is not limited to one, and may be two or more.

[0095] It is also possible to use a configuration in which the movement of the movable arm 203 is controlled by gas pressure or spring force. These are used in the structure of arms that hold liquid crystal monitors and lighting equipment. A ball head can also be used as the joint. Figure 13 shows an example in which a ball head 207 is used. In this case, the arm 203 can be oriented in any direction, thereby adjusting the position of the reflecting prism 205.

[0096] 1 can be structured to support the support plate 101 in Fig. 1 by a movable arm 203. In this case, the position of the reflecting prism 114 is roughly adjusted by moving the movable arm 203, and the position of the reflecting prism 111 is finely adjusted by moving the movable plate 111. The form in which the movable arm 203 is used can also be applied to other embodiments.

[0097] 11. Eleventh embodiment Hereinafter, as a modified example of the movable plate 111 in the first embodiment, a modified example equipped with a fine movement mechanism for the support shaft 112 held by the movable plate 111 will be described. Fig. 14 shows top views (A) and (B) and a side view (C) of a movable plate 301 used in place of the movable plate 111 in Fig. 1.

[0098] In this example, a structure for finely moving a support shaft 112 by a fine movement mechanism using the principle of leverage (power multiplier mechanism) will be described. Although not shown in Fig. 14, a reflecting prism 114 and a laser pointer 115 are suspended and held via a universal joint 113 at the bottom of the support shaft 112, as in the case of Fig. 1. Of course, this embodiment can also be applied to a structure having an upward-facing laser pointer as exemplified in Figs. 3 and 4.

[0099] 14 shows a movable plate 301. Movable plate 301 has a circular plate shape. Movable plate 301 is provided with a slit (a long hole having a longitudinal opening) 302 passing through the center of the circle, and a slit 303 that is parallel to slit 302 and has a similar structure.

[0100] The slit 302 is an example of a guide structure that restricts (restrains) the support shaft 112 to move along a specific path. The slit 303 is an example of a guide structure that restricts (restrains) the moving shaft 308 to move along a specific path.

[0101] The support shaft 112 penetrates the slit 302 from top to bottom (direction of the Z axis: direction perpendicular to the XY plane) while being restricted to movement only in the extension direction (longitudinal direction) of the slit 302. Due to this structure, the support shaft 112 can only move in the direction along the extension direction of the slit 302.

[0102] A slider 304 for suspending the support shaft 112 from the movable plate 301 in a movably manner is fixed to the support shaft 112. The lower surface of the slider 304 is in slidable contact with the upper surface of the movable plate 301.

[0103] A rotating member 305 having a longitudinal shape that can rotate around a shaft 306 is engaged with the support shaft 112. A longitudinal slit 307 is provided in the rotating member 305, and the support shaft 112 penetrates the slit 307 in the vertical direction (Z-axis direction) while being movable within the slit 307 in the longitudinal direction of the slit 307. The slit 307 is an elongated hole having a longitudinal opening, and constitutes a guide mechanism that restricts (constrains) the movement of the support shaft 112 within the XY plane only to the longitudinal direction of the rotating member 305 (direction away from the rotation center).

[0104] A moving shaft 308 penetrates the slit 303 from top to bottom (Z-axis direction) while being movable in the longitudinal direction of the slit 303. The movement of the moving shaft 308 within the XY plane is permitted only along the extension direction of the slit 303. The moving shaft 308 also penetrates the slit 307 from top to bottom while being movable along the longitudinal direction of the rotating member 305. When the moving shaft 308 is moved within the slit 303, the rotating member 305 follows the movement and rotates around the shaft 306 in the direction of the circular arrow in FIG. 14(B).

[0105] Sliders 309a and 309b are fixed to the moving shaft 308. The slider 309a is in slidable contact with the upper surface of the rotating member 305. The slider 309b is in slidable contact with the lower surface of the movable plate 301.

[0106] The shaft 306 is fixed to the movable plate 301 and rotatably supports the rotating member 305. The rotating member 305 extends from the position of the shaft 306, which is the center of rotation, in the direction of the slit 302 and further extends to a position beyond the slit 303.

[0107] Rotating member 305 forms a lever with shaft 306 as the fulcrum, support shaft 112 as the point of application, and moving shaft 308 as the point of force. When moving shaft 308 is moved in the extension direction of slit 303, rotating member 305 rotates about shaft 306, and support shaft 112, which is restrained by slits 302 and 307, moves in the extension direction of slit 302.

[0108] For example, when the moving axis 308 is moved in the positive direction of the Y axis in the state shown in Fig. 14(B), the support axis 112 also moves in the positive direction of the Y axis, eventually transitioning to the state shown in Fig. 14(A). At this time, due to the principle of leverage, the movement distance of the support axis 112 is shorter than the movement distance of the moving axis 308. In other words, the linear movement of the moving axis 308 is converted into the linear movement of the support axis 112 in a scaled state. This makes it easy to fine-tune the position of the support axis 112.

[0109] In actual work, for example, first, movable plate 301 is moved by hand to roughly adjust the horizontal position of reflecting prism 114 (see FIG. 1) suspended from support shaft 112 (adjustment 1). Next, movable plate 301 is rotated to determine the direction of fine adjustment (adjustment 2). Finally, the position of reflecting prism 114 is finely adjusted by moving movement shaft 308 along slit 303 (adjustment 3). Here, by repeating adjustments 2 and 3, it is possible to position reflecting prism 114 with high accuracy.

[0110] Here, the case where the slits 302, 303 extend linearly has been described, but they may extend in an arc or curved line. Also, a structure in which the movement path of the support shaft 112 does not pass through the center of the movable plate 301 is also possible. For example, in the case of FIG. 14, a structure in which the position of the support shaft 112 is brought even closer to the shaft 306 is also possible. In this case, the scale ratio of the fine movement (amount of movement of the moving shaft 308:amount of movement of the support shaft 112) can be further increased. However, in this case, the movable range of the support shaft 112 is narrowed.

[0111] The movable plate 301 does not have to be circular. The same function as the slits 302, 303, and 307 can also be achieved by a guide structure such as a convex rail or a concave rail.

[0112] Figures 15(A) and (B) are modified examples of Figure 14. In the case of Figure 15(A), a lever is formed in which the position of shaft 306 is the fulcrum, the position of support shaft 112 is the point of application, and tip 305a of rotating member 305 is the point of force. In this case, rotating member 305 serves as a manual lever, and by moving tip 305a, support shaft 112 moves along the longitudinal direction of slit 302. In this case as well, support shaft 112 moves along the extension direction of slit 302 with the movement of tip 305a of rotating member 305 scaled down, so that the position of support shaft 112 can be adjusted more precisely.

[0113] 15(B), a lever is formed with the position of shaft 306 as the fulcrum, the position of support shaft 112 as the point of application, and the other end 305b of rotating member 305 as the point of force. In this case, rotating member 305 serves as a manual lever, and by moving the other end 305b, support shaft 112 moves along the longitudinal direction of slit 302. In this case as well, support shaft 112 moves along the extension direction of slit 302 with the movement of the other end 305b of rotating member 305 scaled down, so that the position of support shaft 112 can be adjusted more precisely.

[0114] 14 and 15 show a movable member (e.g., movable plate 301), a rotating member (rotating member 305) having an elongated shape rotatable on the movable member, and a member supporting a reflecting prism 114 (see FIG. 1) and a laser pointer 115, the member including an optical system support member (support shaft 112) engaged with the rotating member in a state movable in a direction away from (and toward) the center of rotation (position of reference numeral 306) of the rotating member (rotating member 305), the movable member (movable plate 301) is provided with a movement restriction structure (guide structure formed by slit 302) that restricts the movement of the optical system support member (support shaft 112) to a specific direction (extension direction of slit 302), and the optical system support member (support shaft 112) in the rotating member (rotating member 305) is provided with a movement restriction structure (guide structure formed by slit 302) that restricts the movement of the optical system support member (support shaft 112) to a specific direction (extension direction of slit 302). A lever is formed with the center of rotation (position of reference symbol 306) as a fulcrum, the engaged position (position of reference symbol 112) as a point of application, and the end portion in the longitudinal direction of the rotating member (rotating member 305) as a point of force (moving axis 308, ends 305a, 305b), and the distance between the fulcrum (position of reference symbol 306) and the point of force (position of moving axis 308, ends 305a, 305b) is greater than the distance between the fulcrum (position of reference symbol 306) and the point of application (position of reference symbol 112), and by moving the point of force (position of moving axis 308, ends 305a, 305b), the optical system support member (support axis 112) moves in a specific direction (extension direction of slit 302) relative to the movable member (movable plate 301).

[0115] 12.Other It is also possible to combine two or more of the above-described embodiments. It is also possible to combine some of the above-described embodiments. The opening 102 does not have to be closed. For example, in FIG. 1, a structure is possible in which the opening 102 is open in the positive X direction at the end portion in the X direction of the support plate 101. In this case, the support plate 101 has a bifurcated fork shape, and the space between the tines of the bifurcated fork becomes the opening 102. The fact that the opening does not have to be closed is the same in the other embodiments.

[0116] It is also possible to have a structure in which the reflecting prism 114 is located above the movable plate 111. For example, in the structures shown in Fig. 3 and Fig. 4, the reflecting prism 114 is attached to the upper part of the arm 131 or above the support shaft 112. If the weight required for the universal joint 113 or the gimbal mechanism 142 to operate is insufficient, a weight is added to the lower part of the support shaft 112. [Explanation of symbols]

[0117] 100...Survey target device, 101...Support plate, 102...Opening, 110...Moving part, 111...Moving plate, 112...Support shaft, 112a...Expanded part, 112b...Constricted part, 113...Universal joint, 114...Reflecting prism, 115...Laser pointer, 116...Optical system, 111'...Moving plate, 121...Base movable plate, 121a...Opening, 122a...Opening, 122...Eccentric plate, 123...Eccentric plate, 131...Arm, 131a...Horizontal extension, 131b...Vertical extension 131b, 131c...Horizontal extension, 132...Opening, 133...Laser pointer, 141...Opening, 142...Gimbal mechanism, 161...Notch, 171...Protrusion, 172...Protrusion , 173...depression, 174...depression, 175...elliptical stopper, 176...magnet, 177...magnetic plate, 181...annular movable part, 181a...opening, 182...position rotatably supported on an axis, 183...slider, 190...support part, 200...survey target device, 201...vertical arm, 201a...horizontally rotating part, 202...joint part, 203...movable arm, 204...universal joint, 205...reflecting prism, 205...reflecting prism, 206...laser pointer, 301...movable plate, 302...slit, 303...slit, 304...slider, 305...rotating member 306...axis, 307...slit, 308...moving axis, 309a...slider, 309b...slider.

Claims

1. A support portion; a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, A surveying target device capable of rotating the connecting member in an eccentric state relative to the movable member.

2. A support part, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, The laser pointer irradiates a laser point light in a vertically downward direction, the connecting member is a universal joint, The movable member and the optical portion are connected by the universal joint, an extension member that detours horizontally from the optical portion and reaches above the movable member; another laser pointer fixed to the extension member and emitting a laser point light in an upward direction coaxially with the laser pointer; A surveying target device comprising:

3. A support part, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, The laser pointer irradiates a laser point light in a vertically downward direction, The connecting member is a gimbal mechanism having two axes perpendicular to each other, a vertical support member that vertically supports the optical unit from above is supported by the gimbal mechanism; another laser pointer fixed to the vertical support member and emitting a laser point light in an upward direction coaxially with the laser pointer; A surveying target device comprising:

4. A support part, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, the connecting member is a universal joint, The movable member holds a support shaft that supports the universal joint from above, The support portion is provided with an opening through which the support shaft passes downward, A surveying target device in which a notch into which the support shaft fits is provided on the inner edge of the opening.

5. The support shaft has an enlarged diameter portion having a relatively enlarged diameter and a reduced diameter portion having a relatively reduced diameter, The notch has a shape in which the entrance is relatively narrow and the inside is relatively wide, The diameter of the expanded diameter portion is such that the inlet cannot pass through the expanded diameter portion from the horizontal direction, 5. The survey target device according to claim 4, wherein the diameter of said reduced diameter portion is dimensioned to allow said device to pass through said entrance from a horizontal direction.

6. A support portion, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, The support portion is provided with an opening, A protrusion is provided on the lower surface of the movable member, A surveying target device in which an inner edge of the opening has a recess or hole into which the protrusion fits.

7. A support portion, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, A longitudinal member is fixed to the lower portion of the movable member, The support portion is provided with an opening having a longitudinal shape penetrating vertically, When viewed in a horizontal direction, the elongated member is located at a position overlapping the opening, A surveying target device in which the longitudinal length of the elongated member is greater than the dimension of the opening in a direction perpendicular to the longitudinal direction.

8. A support portion, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, A magnet is disposed under the support portion, A magnetic member is fixed to the movable member at a spaced downward position, A surveying target device in which the movable member can be fixed to the support portion by moving the movable member upward and magnetically fixing the magnetic member to the magnet.

9. A support portion, a movable member placed on the support and capable of freely moving by sliding in a horizontal direction; an optical section including a retroreflector and a laser pointer; a connecting member that connects the movable member and the optical portion; Equipped with the connecting member connects the movable member and the optical unit in a state in which the direction of the optical axis of the laser pointer is maintained in a vertical direction, a rotating member rotatable on the movable member; an optical support member that holds the optical portion and is engaged with the rotating member in a state in which the optical support member is movable in a direction away from a rotation center of the rotating member; the movable member is provided with a movement restriction structure that restricts the movement of the optical part support member to a specific direction, A lever is formed with the rotation center of the rotating member as a fulcrum, the engaged position as a point of application, and a specific part of the rotating member as a point of force, a distance between the fulcrum and the point of application is greater than a distance between the fulcrum and the point of application, A surveying target device in which, by moving the point of force, the optical unit support member moves in a specific direction relative to the movable member.

10. A support portion; A movable member that can rotate on the support and has an opening that can be opened upward and downward; a slider movable over the opening in the movable member while in contact with the movable member; a support shaft held by the slider and extending downward from the opening; A retroreflector and a laser pointer suspended and held on the support shaft via a connecting member; Equipped with The connecting member connects the support shaft to the retroreflector and the laser pointer while maintaining the direction of the optical axis of the laser pointer in a vertical direction.

11. A first support portion, a first rotating unit capable of horizontally rotating with respect to the first support unit; a second rotating unit capable of horizontally rotating with respect to the first rotating unit about a position other than the rotation center of the first rotating unit; a second support portion held at a position other than the rotation center of the second rotating portion; a retroreflector and a laser pointer suspended and held by the second support via a connecting member; Equipped with The connecting member connects the second support portion to the retroreflector and the laser pointer while maintaining the direction of the optical axis of the laser pointer in a vertical direction.

12. A support portion; an arm connected to the support via a joint and capable of horizontal rotation and vertical rotation; A retroreflector and a laser pointer are suspended and held on the arm via a connecting member; Equipped with The connecting member connects the arm to the retroreflector and the laser pointer while maintaining the direction of the optical axis of the laser pointer in a vertical direction.

Images