JP5337204B2 - Surveying target support - Google Patents

Description

  The present invention relates to a surveying target support.

  As shown in Patent Document 1 below, surveying is performed by irradiating ranging light from a surveying instrument installed at a known point to a target erected at the measurement point. The target is a reflecting prism that reflects incident light, and a pole is used as a support. The pole is held vertically so that the level display is kept horizontal, and the orientation is adjusted so that the reflected light from the reflecting prism enters the surveying instrument.

JP 2005-227166 A

  In the conventional target support device described above, it cannot be installed at an observation point at an intersection of wall surfaces or an observation point under an obstacle such as a block fence. For this reason, it has been necessary to remove the reflecting prism from the target support and attach the needle measuring instrument, and to place the tip of the needle measuring instrument at the observation point to support the reflecting prism by hand.

  In view of such circumstances, an object of the present invention is to provide a surveying target support that can perform measurement at various observation points.

In order to solve such problems, the target support for surveying of the present invention includes a target, a target disposition portion where the target is disposed, a plane parallel to the disposition surface of the target, and A target support portion that supports the target on the target placement portion so as to be rotatable in a plane orthogonal to the placement surface, and a level that is provided on the placement surface and displays an angle of the target placement portion with respect to a horizontal plane. A container, a leg portion extending in a direction orthogonal to the placement surface from the target placement portion toward the opposite side of the placement surface, and a grip portion formed of an elastic-plastic material and gripped by a user It is provided with the connection part which connects the said target arrangement | positioning part .
Further, the present invention is characterized in that the level is movably disposed along the extending direction of the surface on which the target is disposed .
Also, the present invention is the target arrangement portion, wherein the extending direction to the target arrangement portion through the leg portion confirmation holes of the leg portion.

  According to the present invention, since the target can be directed at various angles with respect to the target placement portion, measurement can be performed at various observation points without removing the target.

It is a figure which shows the target support tool for surveying of one Embodiment of this invention. It is a figure which expands and shows the target arrangement | positioning part of FIG. It is a figure which expands and shows the target support part of FIG. It is a figure which expands and shows the rotating shaft and leg part of FIG. It is a figure which shows the leg part with which a rotating shaft is mounted | worn. It is a 1st figure which shows operation | movement of a target support part. It is a 2nd figure which shows operation | movement of a target support part. It is a figure which shows the example of the measuring method using the target support tool for surveying. It is a figure which shows the modification of a target arrangement | positioning part. It is a figure which shows the modification of a target support part. It is a figure which shows the modification of a target support part.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a surveying target support 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the surveying target support 1 includes a target 2, a target disposition unit 3 on which the target 2 is disposed, a target support unit 4 that supports the target 2 on the target disposition unit 3, A grip portion 5 gripped by a user, a connection portion 6 that connects the target placement portion 3 and the grip portion 5, and a leg portion 7 that stands on an observation point are provided.

  The target 2 is a reflecting prism that reflects incident light. As shown in FIG. 2, the target placement portion 3 has a mounting hole 31 through which a rotation shaft 44 to be described later passes through one end portion in the longitudinal direction, and has a flat plate shape. On the upper surface of the target placement unit 3, a level 32 is attached to display the angle of the target placement unit 3 with respect to the horizontal plane. The level 32 is constituted by a bubble tube. A leg confirmation hole 33 penetrating the target placement portion 3 is formed in the target placement portion 3. The leg confirmation hole 33 extends in a slit shape in the longitudinal direction of the target placement portion 3.

  As shown in FIG. 3, the target support portion 4 includes a fixed portion 41 to which the target 2 is fixed, and a rotating portion 42 connected to a rotating shaft 44. The fixed portion 41 has a shape obtained by bending a flat plate into a U-shape. The fixed portion 41 is supported by the rotating portion 42 by a support shaft 43 so as to be rotatable in a plane orthogonal to the upper surface of the target placement portion 3. The support shaft 43 includes a male screw portion on the outer peripheral surface, and is fixed to both sides of the fixing portion 41. The support shaft 43 serves as a reference position for observing the target 2 with a surveying instrument.

  The rotating part 42 has a shape obtained by bending a flat plate into a U-shape. The rotating part 42 is connected to the target disposing part 3 by a rotating shaft 44 so as to be rotatable along the upper surface of the target disposing part 3. A through hole through which the support shaft 43 is inserted is formed on both sides of the rotating portion 42. The rotating portion 42 is pressed against the fixing portion 41 by a nut 431 screwed to the male screw portion of the support shaft 43 and is fixed to the fixing portion 41.

  The rotating shaft 44 is configured by a cylindrical body having a reduced diameter portion inserted through the attachment hole 31 and a reduced diameter portion inserted through the insertion hole 421 of the rotating portion 42. As shown in FIG. 4, a female screw portion 441 is provided on the inner surface of the rotating shaft 44. The rotating shaft 44 is a leg portion mounting portion on which the leg portion 7 is mounted.

  One end of the leg portion 7 has a reduced diameter, and a male screw portion 71 is formed at the other end. The leg portion 7 is attached to the rotation shaft 44 with the male screw portion 71 screwed into the female screw portion 441 of the rotation shaft 44. The leg portion 7 attached to the rotation shaft 44 extends downward from the target placement portion 3.

  The rotating shaft 44 includes one of a plurality of types of legs having different lengths and shapes, such as legs 7A and 7B having different lengths shown in FIG. Can be installed instead of the above-described leg 7. These replacement legs 7 </ b> A to 7 </ b> C can be stored in a storage 51 (see FIG. 1) provided in the grip 5.

  The connecting portion 6 is formed of an elastic-plastic material such as a wire so that the shape of the connecting portion 6 can be freely bent and extended. For this reason, the direction of the target arrangement | positioning part 3 with respect to the holding part 5 also changes with the connection part 6 being deformed. The connection portion 6 includes a head portion of a male screw member 61 inserted through the through holes of the target placement portion 3 and the grip portion 5, and a female screw member 62 screwed into the male screw member 61. Or it is inserted | pinched with the holding part 5, and is being fixed to the target arrangement | positioning part 3 and the holding part 5. FIG.

  As indicated by arrows A and B in FIG. 6, the target 2 rotates in a plane parallel to the upper surface of the target placement unit 3 as the rotating unit 42 rotates about the rotation axis 44. Further, as indicated by arrows C and D in FIG. 7, as the fixed portion 41 rotates around the support shaft 43, it rotates in a plane orthogonal to the upper surface of the target placement portion 3.

  In the surveying target support 1, as shown in FIG. 7 (b), the upper surface of the target placement unit 3 can be horizontal and the legs 7 can be set up at the observation point, and the target 2 can be directed toward the surveying instrument. . Moreover, in the target support tool 1 for surveying, as shown to Fig.8 (a), the leg part 7 can be stood horizontally on a wall surface, and the target 2 can be turned to a surveying instrument. Therefore, measurement can be performed without causing the target placement unit 3 and the gripping unit 5 to interfere with an obstacle 8 such as a wall surface or a block cage. Note that when the surveying is performed in the posture as shown in FIG. 8A, the observation distance is corrected using the length L1 as a constant.

  Further, the leg portions 7A, 7B, and 7C can be used in place of the leg portion 7 according to the position of the surrounding obstacle 8. When using a leg portion 7C whose tip is bent laterally, as shown in FIG. 8 (b), the tip of the leg 7C is moved from the slight gap under the obstacle 8 such as a block rod to the observation point. The legs 7C can be placed horizontally and measurements can be taken. Note that when the surveying is performed in the posture as shown in FIG. 8B, the observation distance is corrected using the length L2 as a constant.

  According to this embodiment, by rotating the target 2 independently of the level 32 in a plane parallel to the arrangement plane of the target 2 and in a plane orthogonal to the arrangement plane, the target 2 is arranged on the target. It can be directed at various angles with respect to the installation part 3, and measurement can be performed at various observation points without removing the target 2. As a result, the opposite side measurement between the observation points can be performed as it is with the surveying instrument.

  In addition, according to the present embodiment, the grip portion 5 and the target placement portion 3 are connected by the connecting portion 6 formed of an elastic-plastic material, and the connecting portion 6 is curved to observe the ground at the observation point or the block wall. Since the surveying target support tool 1 can be supported at the two points of the leg 7 and the gripping part 5 by bringing the gripping part 5 into contact with a wall surface such as the like, the surveying target support tool 1 can be easily held in a fixed posture. can do.

  Moreover, according to this embodiment, since the position of the front-end | tip of the leg part 7 can be confirmed through the leg part confirmation hole 33 of the target arrangement | positioning part 3, exact positioning of the leg part 7 can be performed easily.

  In the above embodiment, the case where the level 32 is configured by a bubble tube has been described. However, for example, an angle meter or the like that displays an angle numerically may be used. Moreover, the attachment structure of the target support part 4 with respect to the target installation part 3 is also arbitrary. Further, it is not necessary to form the leg confirmation hole 33 in the target placement portion 3.

  Moreover, as shown in FIG. 9, it is good also as a structure by which the level 32 is arrange | positioned so that a movement along the extension direction of the leg part confirmation hole 33 is possible. The level 32 is slidably fitted to the peripheral edge of the leg confirmation hole 33 or is installed with a magnet or the like. According to this configuration, the level 32 can be moved along the extending direction of the leg confirmation hole 33 so that the tip of the leg 7 can be visually recognized.

  Further, if the target 2 is rotatably supported in a plane parallel to the arrangement surface of the target 2 and in a plane orthogonal to the arrangement surface, the configuration of the target support portion 4 is arbitrary. For example, the fixed portion 41 and the rotating portion 42 do not have to have a shape obtained by bending a flat plate into a U-shape. Moreover, you may support the target 2 rotatably with respect to the target arrangement | positioning part 3, like the target support part 4A shown in FIG.

  10A is a view of the target support portion 4A as viewed from the front end side of the target placement portion 3, and FIG. 10B is a view of the target support portion 4A as viewed from the right side of the target placement portion 3. 10C is a view of the target support portion 4A viewed from the upper side of the target placement portion 3, and FIG. 10D is a view of the target support portion 4A viewed from the right side of the target placement portion 3.

  The target support portion 4A is configured by accommodating a fixed portion 41A in a rotating portion 42A. In the rotating part 42A, a slit hole 42A1 through which the target 2 is inserted is provided in a slit shape. The fixing portion 41A is formed in a spherical shape, and a fitting hole 41A1 into which the target 2 is fitted is formed. A concave portion 44A1 on which the fixed portion 41A is placed is formed in a spherical shape on the upper surface of the rotating shaft 44A.

  As indicated by an arrow E in FIG. 10, the target 2 rotates in a plane parallel to the upper surface of the target placement unit 3 as the rotating unit 42 </ b> A rotates about the rotating shaft 44 </ b> A. Further, as indicated by an arrow F in FIG. 10, the in-plane orthogonal to the upper surface of the target placement portion 3 as the fixing portion 41A rotates on the recess 44A1 and the target 2 moves in the slit hole 42A1. Rotate with. For this reason, as shown in FIGS. 10 (a) and 10 (b), the target 2 is directed toward the tip end side of the target placement portion 3, or as shown in FIGS. 10 (c) and 10 (d). Can be rotated to the state.

  In the target support portion 4A, by forming the fixing portion 41A with a magnet, the fixing portion 41A can be attracted to the concave portion 44A1 on the upper surface of the rotating shaft 44A, and the position of the fixing portion 41A can be fixed.

  Moreover, you may form with the spherical body or cylindrical body made from a magnet like the target support part 4B shown in FIG. In the target support portion 4B, the target 2 is fitted into the fitting hole 41B1. The target 2 rotates as the target support portion 4B rotates on the concave portion 44B1 formed in a spherical shape or a cylindrical surface shape on the upper surface of the rotation shaft 44B.

  Since the target support portion 4B is adsorbed to the recess 44B1 on the upper surface of the rotation shaft 44B, it rotates without falling from the rotation shaft 44B. Further, the support shaft 43 can be attached to both end surfaces of the target support portion 4B formed in a columnar shape, for example, by suction. In the example described above, the case where the target support portions 4A and 4B are formed of magnets has been described. However, the rotation shafts 44A and 44B may be formed of magnets. By forming the rotation shafts 44A and 44B with magnets, it is possible to increase the force for attracting the target support portions 4A and 4B.

DESCRIPTION OF SYMBOLS 1 Surveying target support tool 2 Target 3 Target arrangement | positioning part 31 Mounting hole 32 Level 33 Leg confirmation hole 4,4A, 4B Target support part 41,41A Fixing part 41A1,41B1 Fitting hole 42,42A Rotating part 42A1 Slit Hole 421 Insertion hole 441 Female threaded portion 43, 43A Support shaft 431 Nut 44, 44A, 44B Rotating shaft 44A1, 44B1 Recessed portion 5 Grasping portion 51 Storage portion 6 Connecting portion 61 Male threaded member 62 Female threaded member 7, 7A-7C Leg portion 71 Male thread 8 Obstacle

Claims (3)

Target,
A target placement section on which the target is placed;
A target support portion that supports the target on the target placement portion so as to be rotatable in a plane parallel to the placement surface of the target and in a plane orthogonal to the placement surface;
A spirit level provided on the placement surface and displaying an angle of the target placement portion with respect to a horizontal plane;
Legs extending in a direction perpendicular to the arrangement surface from the target arrangement portion toward the opposite side of the arrangement surface ;
A surveying target support , comprising: a gripping part formed of an elasto-plastic material, and a connecting part that connects the gripping part gripped by a user and the target placement part .   The survey target support according to claim 1, wherein the level is movably disposed along an extending direction of a surface on which the target is disposed. The survey target support according to claim 1 , wherein a leg confirmation hole penetrating the target arrangement part is formed in the target arrangement part in the extending direction of the leg part. Ingredients.

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