JPH10300470A - Reflecting target for surveying - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reflecting target for surveying, reflecting a surveying light wave coming from surveying equipment, capable of varying in height, being lightweight and unbulky, and providing good operating efficiency. SOLUTION: A reflecting target 10 for surveying, which reflects a surveying light wave coming from surveying equipment, includes a pole 20 with ferrules 22 at both ends, a frame 31 having a bubble tube 35 showing the verticalness of the pole 20, and a reflecting target 32 having an index placed on the frame 31, the frame 31 being placed in a position at which it is at different distances from the ferrules 22 along the longitudinal direction of the pole 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflection target for surveying which is used as a target of a light wave rangefinder in surveying and the like.

[0002]

2. Description of the Related Art When performing surveying on roads, development sites, and the like,
In general, the distance is measured by an optical distance meter having a distance measuring function and an angle measuring function. In this case, surveying is performed by setting up a surveying reflection target including a reflection target and a pole to which the reflection target is attached at the measurement point, and collimating the surveying reflection target with an optical distance meter.

[0003] As a conventional reflection target for surveying, for example, as shown in FIG. In the outer pole 102 provided, a reflecting prism 1 is provided at the upper end.
04 is inserted, and the inner pole 103 is extended and retracted with respect to the outer pole 102,
A target pole 100 for lightwave distance that can adjust the entire length of the pole 101 is disclosed. Since the length of the pole 101 can be freely changed in this way, when the lightwave distance target pole 100 is set as a measurement point and surveyed using a surveying instrument such as a lightwave rangefinder, the lightwave rangefinder and the lightwave rangefinder are used. Even in the case where there is an obstacle between the measuring point and the obstacle, the pole 101 of the light wave distance measuring target pole 100 is extended, and the reflection prism 104 is positioned above the obstacle, so that the light is reflected from the light wave distance measuring instrument. The prism 104 can be collimated.

[0004]

However, in the above-mentioned prior art, the outer pole 1 is required to change the length of the pole 101.
02 and the inner pole 103 have to be slid and expanded and contracted and fixed, so that there is an inconvenience that the work is troublesome. The outer pole 102 and the inner pole 10
There was a risk that the scales provided on the surface of the inner pole 103 would gradually wear out and disappear, as the cylinders of No. 3 would slide against each other.

[0005] Furthermore, the inner pole 1 is attached to the outer pole 102.
03 is inserted, the pole 101
There has been a problem that the whole becomes thick and the weight increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a light-weight, low-bulk, and high-efficiency surveying target that can change the height of a reflecting target that reflects a surveying light wave from a surveying instrument.

[0007]

According to a first aspect of the present invention, there is provided a surveying reflection target for reflecting a surveying light wave from a surveying instrument, comprising: a pole having a shingle at both ends; A frame having a bubble tube indicating the verticality of the pole, and a reflection target having an indicator disposed on the frame, wherein the frame is at a distance from each of the stone bumps in the longitudinal direction of the pole. Are arranged at different positions.

A surveying reflection target according to a second aspect of the present invention is a surveying reflection target for reflecting a surveying light wave from a surveying instrument, comprising: a pole having a shingle at both ends;
A frame having a bubble tube indicating the verticality of the pole, and a reflection target having an indicator disposed on the frame, comprising:
The pole is formed by connecting a plurality of pieces having a male thread at one end and a female thread at the other end,
The butt is formed with a male thread or a female thread at one end and connected to the piece, and is disposed at both ends of the pole. It is characterized in that they are disposed at different distances.

[0009] It is preferable that the frame has a connecting portion which is screwed and connected to the male screw portion and the female screw portion of the piece, and is detachably provided on the pole.

[0010] It is preferable that the reflection target is disposed on the frame so as to be tiltable around a horizontal support axis orthogonal to the pole.

It is preferable that the virtual reflection surface of the reflection target at the center of the index coincides with the axis center line passing through the measurement point of the pole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A surveying reflection target 10 for reflecting a surveying light wave from a surveying instrument 40. The surveying reflection target 10 includes a pole 20 having a shingle 22 at both ends, and a pole 20. Tube 3 showing verticality
5 and a reflection target 32 having an index disposed on the frame 31. Frame 3
Numerals 1 are arranged at positions different in distance from each stone foot 22 in the longitudinal direction of the pole 20.

According to the present invention, the position of the reflection target 32 from the measurement point can be changed by setting one of the stone feet 22 provided at both ends of the pole 20 at the measurement point. Even if there is an obstacle 50 between the lightwave range finder 40 and the surveying reflection target 10 by a simpler operation without performing the work of expanding and contracting the pole as described above, the obstacle 50 is avoided and the surveying work is performed. It becomes possible to do. In addition, the surveying work can be performed with high working efficiency because it is not bulky, light and easy to handle as compared with a pole having a conventional telescopic structure and adjusting the height.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention, and can be variously modified within the scope of the present invention.

FIGS. 1 to 10 show a first embodiment of the present invention. FIG. 1 is a front view of a reflection target for surveying.
2 is an explanatory view of the piece, FIG. 3 is an explanatory view of a main part of the surveying reflection target, FIG. 4 is a view AA of the surveying reflection target in FIG. 1, and FIG. 5 is B of the surveying reflection target in FIG. -B view, FIG. 6 is a side view of a main part of the surveying reflection target, FIG. 7 is a right side view of the surveying reflection target, FIG. 8 is a left side view of the surveying reflection target, and FIG. FIG. 10A and FIG. 10B are explanatory views showing a surveying operation using a surveying reflection target.

The surveying reflection target 10 of the present embodiment is a surveying pole 2 held upright on a surveying point by an operator or the like.
0, and a reflective target body 30 disposed on the pole 20, and are collimated by an optical distance meter 40 as a surveying instrument.

The pole 20 of this embodiment is constituted by connecting and integrating a plurality of pieces 21 of a predetermined length (20 cm in this embodiment), which are color-coded white and red. As shown in FIG. 1, the piece 21 includes white portions 21c (5 cm) at both ends and a red portion 21d (10 cm) between the white portions.

As shown in FIG. 2, the piece 21 has a male thread 21a at one end and a female thread 21b at the other end. Therefore, by screwing the male screw portion 21a of the piece 21 with the female screw portion 21b of the adjacent piece 21, the adjacent pieces 21 can be connected to each other.

The pole 20 is formed by joining a plurality of pieces 21 as described above.
The length of the pole 20 can be set by adjusting the number of pieces 21 constituting 0.

The ram 22 of this embodiment is disposed at both ends of the pole 20. As shown in FIG. 2, the female thread portion 21 b of the piece 21
A male screw portion 22a that can be screwed with the female screw portion 21b of the piece 21 and the male screw portion 22a of the stone foot 22 are screwed together and joined to form the stone foot 2
2 and the pole 20 can be connected.

In this example, the male thread 22
Although an example in which a is formed is shown, the present invention is not limited to this. Such a configuration may be adopted.

The reflection target body 30 of the present embodiment has a frame 3
1 and a reflection target 32 disposed in the frame 31.
It is composed of

As shown in FIG. 3, the frame 31 of this embodiment is formed in a rectangular shape by a pair of parallel horizontal pieces 31a, 31a and a pair of parallel vertical pieces 31b, 31b. A support shaft 34 is provided between 31b and 31b.
Then, the frame body 31 is placed on the pole 20 on the pole 20.
The pole 2 is positioned via the engaging portion 31c so as to be located at a different distance from each of the rams 22 disposed at both ends of the pole 2.
0 and are arranged integrally. At this time, the distance from the ram 22 to the frame 31 is H1 as shown in FIG.
And H2.

In the frame 31, the engaging portion 31c
Alternatively, a connecting portion provided with a threaded portion may be formed to be screwed and connected to the threaded portion of the piece 21 constituting the pole 20.

The frame 31 has bubble tubes 35 on the outer surfaces of the horizontal pieces 31a and 31a, respectively. The bubble tube 35 is used to display the verticality of the pole 20 when the stone 22 is set at a measuring point. Since the bubble tube 35 is provided on each of the horizontal pieces 31a and 31a of the frame body 31 as described above, even if any of the stone pegs 22 provided at both ends of the pole 20 is set as a measuring point, The configuration is such that the verticality of the pole 20 can be measured.

The reflection target 32 of this embodiment is formed by adhering a reflection sheet to a rectangular target plate. The reflection sheet has a cross line 33a indicating a center and a circular line 33b serving as collimation indices. Is provided. This reflection sheet is a flexible transparent reflector in which microprisms are formed in a dense state, and has a property of directly reflecting incident light in the incident direction.

The reflection target 32 is formed in a rectangular shape slightly smaller than the inner shape of the frame 31 and is configured to be held in the frame 31 by the support shaft 34 as shown in FIG. ing. At this time, as shown in FIG. 6, the virtual reflection surface at the center of the crosshair 33a of the reflection target 32 is configured to coincide with the axis 20a passing through the measurement point of the pole 20.

Alternatively, the support shaft 34 is connected to the two vertical pieces 3 of the frame 31.
The reflective target 32 may be held so as to be tiltable around a horizontal support shaft on the rotatable support shaft 34 so as to be rotatably mounted between the 1b and 31b.
At this time, the virtual reflection surface at the center of the cross line 33a of the reflection target 32 is configured to be on the axis 20a passing through the measurement point of the pole 20.

As described above, the reflection target 32 is attached to the frame 3
1, the reflection target 32 can be freely adjusted in a direction easy to collimate from the optical distance measuring instrument 40, which facilitates collimation and more accurate surveying. Becomes possible.

According to the surveying reflection target 10 of the present embodiment, as shown in FIG. 10, when measuring the distance from the lightwave rangefinder 40 to the measuring point, the distance from the lightwave rangefinder 40 to the surveying reflection target 10 is increased. Even if the obstacle 50 exists on the collimating optical path, the stones 22 are formed at both ends of the pole 20, and the reflection target main bodies 30 are disposed at different distances from the stones 22, respectively. By setting any stone 22 to a measuring point so that the reflection target body 30 can be collimated from the lightwave rangefinder 40 while avoiding the obstacle 50, the surveying from the lightwave rangefinder 40 is performed. Collimation of the reflection target 10 can be enabled.

Further, since the bubble tube 35 is provided in the frame 31, the stone 2 of the surveying reflection target 10 is placed at the measurement point.
When 2 is set, it can be checked at a glance whether the reflection target 32 is on the vertical line of the measurement point.

FIG. 11 is an explanatory view showing another embodiment of the present invention. In this embodiment, the same members as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the above embodiment, the reflection target body 30
Is provided at one location on the pole 20 and an obstacle 50 existing between the lightwave range finder 40 and the surveying reflection target 10.
In order to avoid the above, an example is shown in which the reflection target main body 30 is positioned on the vertical line of the measurement point while avoiding the obstacle 50 by selecting any one of the stone feet 22 provided at both ends of the pole 20. In this example, as shown in FIG. 11, the reflection target main body 30 is provided at two places of the pole 20. With the configuration as in this example, the distances from the stone ram 22 to the reflection target main body 30 can be set to H1, H2, H3, and H4, respectively, and the distance from the lightwave ranging finder 40 to the surveying reflection target 10 can be increased. Even if the obstacle 50 is present on the collimating optical path, the distance from the stone bump 22 to the reflection target main body 30 is set to H1, H2, H3, H
4, the reflection target body 30 can be located at a position where the obstacle 50 is avoided and the collimation is more easily performed.

In this embodiment, as in the previous embodiment, a bubble tube 35 is provided in each frame 31 and
The verticality of 0 can be measured.

In the above-described embodiment, a configuration in which a plurality of pieces 21 are connected and integrated with the pole 20 has been described. However, the present invention is not limited to this, and a surveying reflection target using a pole made of one long member is used. Is also good.

The reflection target 32 may use a corner cube instead of the reflection sheet shown in the above embodiment.

[0037]

As described above, according to this embodiment, the position of the reflection target main body 30 from the measurement point is set by setting any one of the rams 22 provided at both ends of the pole 20 as the measurement point. Since it can be changed, the obstacle 50 existing between the lightwave distance measuring instrument 40 and the surveying reflection target 10 can be avoided by a simpler operation without performing the work of extending and retracting the pole as in the related art. It is possible to work. In addition, the surveying work can be performed with high working efficiency because it is not bulky, light and easy to handle as compared with a pole having a conventional telescopic structure and adjusting the height.

Further, by disposing the reflection target 32 in the frame 31 so as to be tiltable around the horizontal support axis, the reflection target 32 can be disposed at a position directly facing the lightwave distance measuring instrument 40. And the more accurate surveying becomes possible.

[Brief description of the drawings]

FIG. 1 is a front view of a surveying reflection target according to the present invention.

FIG. 2 is an explanatory view of a piece according to the present invention.

FIG. 3 is an explanatory view of a main part of a surveying reflection target according to the present invention.

FIG. 4 is an AA view of the surveying reflection target according to the present invention in FIG. 1;

FIG. 5 is a BB view of the surveying reflection target according to the present invention in FIG. 1;

FIG. 6 is a side view of an essential part of the surveying reflection target according to the present invention.

FIG. 7 is a right side view of the surveying reflection target according to the present invention.

FIG. 8 is a left side view of the surveying reflection target according to the present invention.

FIG. 9 is a rear view of the surveying reflection target according to the present invention.

FIGS. 10A and 10B are explanatory diagrams showing a surveying operation using the surveying reflection target according to the present invention.

FIG. 11 is an explanatory view showing another embodiment of the surveying reflection target according to the present invention.

FIG. 12 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 10 surveying reflection target 20 pole 21 piece 22 stone bump 30 reflection target main body 31 frame 32 reflection target 33a crosshair 33b circular line 34 support shaft 35 bubble tube 40 light wave distance measuring instrument 50 obstacle

Claims (5)

[Claims] 1. A surveying reflection target for reflecting a surveying light wave from a surveying instrument, comprising: a pole having shingles at both ends; a frame having a bubble tube indicating the verticality of the pole; A reflection target having an indicator disposed on the body, wherein the frame is disposed at a position at a different distance from each of the rams in the longitudinal direction of the pole. target. 2. A surveying reflection target for reflecting a surveying lightwave from a surveying instrument, comprising: a pole having shingles at both ends; a frame having a bubble tube indicating the verticality of the pole; A reflection target having an indicator disposed on the body, wherein the pole is formed by connecting a plurality of pieces having a male thread at one end and a female thread at the other end, The butt is formed with a male thread or a female thread at one end, connected to the piece, and disposed at both ends of the pole, and the frame body is disposed from each of the butt in the longitudinal direction of the pole. A reflection target for surveying, which is disposed at positions at different distances. 3. A frame according to claim 1, wherein said frame is formed with a connecting portion which is screw-connected to a male screw portion and a female screw portion of said piece, respectively, and is detachably provided on said pole. The surveying reflective target according to any of the above. 4. The surveying reflection target according to claim 1, wherein the reflection target is disposed on the frame so as to be tiltable around a horizontal support axis orthogonal to the pole. . 5. The surveying reflection target according to claim 1, wherein a virtual reflection surface of the index center of the reflection target coincides with an axis center line passing through a measurement point of the pole.