JPH0249537Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a surveying reflective prism fixing device for vertically standing up a surveying reflective prism used in surveying using a light wave distance meter or the like above a survey point.

A surveying reflective prism is placed perpendicular to a measuring point and measures distance by reflecting light waves emitted from a surveying device such as a light wave distance meter.
The terrain is not necessarily suitable for setting up a surveying reflective prism, a reflective prism pole, or a tripod. It has been impossible to set a reflecting prism using an earthen marker (boundary stone) placed directly under a wall such as a block wall as a measurement point using a conventional tripod or an ordinary pole.

This invention makes it possible to stably set a reflective prism for surveying, that is, a reflective prism pole, on a measuring point placed directly under a wall or on the top of a block wall, and the setting operation is extremely simple, allowing for quick surveying. The purpose of this device is to provide a reflecting prism fixing device, and its gist is that a transparent plate-shaped stone protrusion is fixed to the lower surface of a reflective prism pole with a reflecting prism fixed to the upper part, and the stone protrusion In this case, a crosshair is formed so that the intersection of the crosshairs is located at the center of the transparent plate, a through hole is formed in the center of the pole, and a hanging thread attachment hook is placed in the center of the lower end surface of the reflective prism pole. The upper surface of the upper piece of the mounting frame, which consists of the surveying reflective prism A provided, a fixed support piece that hangs vertically from the upper piece, and a movable support piece whose upper part can be slid and fixed to the upper piece. To,
There is a reflecting prism fixing device for surveying comprising a setter B to which a clip configured to be able to clamp and support a reflecting prism pole is attached via a universal joint mechanism.

The present invention will be described below with reference to the embodiments shown in the drawings.

The present invention consists of a surveying reflective prism and a setter for holding the surveying reflective prism and fixing it on a fence.

As shown in FIGS. 2, 6, and 7, the surveying reflective prism A has a stone protrusion 13 formed in a planar circular transparent plate on the lower end surface of a reflective prism pole 12 on which a reflective prism 11 is attached. Screws 14, 14
Attach by. A crosshair 20 is placed on the stone protrusion 13.
are provided by engraving, grooving, or other means. The intersection (center) of the crosshairs 20 is the stone protrusion 13
It is formed to coincide with the circular center of the reflective prism 11, and the vertical center of the reflective prism 11, the reflective prism pole 12.
and the crosshair 2 of the stone protrusion 13
It is attached so that the center of 0 coincides with the center. A through hole 15 is provided in the center of the stone protrusion 13,
A recessed hole 16 communicating with the through hole 15 is also provided at the center of the lower surface of the reflective prism pole 12.
The upper part of the hanging thread attachment hook 17 is screwed onto the top wall of the reflector 6 and on the longitudinal center line of the reflective prism pole 12, and fixed by other means, so that the hanging thread attachment hook 17 is suspended. When a hanging ball 18 is required, the hanging ball thread attachment hook 17 is used to hang the hanging ball thread 19 over the measuring point 32, as shown in FIG.

A setter B, which will be described later, is used to erect the surveying reflecting prism A configured as described above above the measuring point 32 directly below the wall 30.

The setter B includes an upper piece 21a formed of a metal strip (or pipe), a fixed support piece 21b hanging perpendicularly from the upper piece 21a, and the upper piece 21a.
A movable support piece 21 is configured to be slidably fitted into a fitting strip hole 22 provided above and fixed at the initial position of the upper piece 21a with a fixing screw 23.
On the upper surface of the upper piece 21a of the mounting frame 21 consisting of c.
Connect the clip 24 to the universal joint mechanism 2.
It is configured to be attached via 5. The clip 24 is attached to two symmetrical clip members 24b, 24b with support parts 24a, 24a formed near the tip, which are formed so as to be able to support the reflective prism pole 12 in a pinched manner. axis 24
d, and an elastic spring 24e is interposed on the rear inner side of each pivot piece 24c, 24c.

A connecting rod 29 is provided protrudingly from the lower surface of one of the above-mentioned clip members 24b, and the lower end of this connecting rod 29 is connected to the ball 25'' of the universal joint mechanism 25.
Fixed to. A male threaded portion 25' is formed at the bottom of the universal joint mechanism 25 as shown in FIG. Further, a universal joint mechanism 25 is provided in which the upper piece 21a of the mounting frame 21 is provided with screw holes 26, 26, 26 at different positions at different positions for screwing the male threaded portion 25', and the clip 24 is fixed therein.
The mounting position can be selectively changed. When the surveying reflective prism fixing device of the present invention is located directly below the outside of the corner 30' of the fence 30 as shown in FIG. If it is directly below the inside of ′,
In either case, as shown in FIG. 7, it is located directly below the outer surface of the wall surface 30'', and although it is not shown, it is located directly below the inner surface of the wall surface 30''.
This allows the reflecting prism 11 to be correctly positioned and fixed vertically above the measuring point 32.

That is, by loosening the fixing screw 23 of the movable support piece 21c of the mounting frame 21 in the setter B, the movable support piece 2
1c is moved outward, and the upper piece 21a is placed on the upper surface of the fence 30 so that the thickness of the fence 30 is sandwiched between the inner surface of the fixed support piece 21b and the inner surface of the movable support piece 21c, and both the inner and outer surfaces of the wall 30 are Fixed support piece 21b
and the inner surface of the movable support piece 21c, and screw the fixing screw 23 into the movable support piece 21c.
is fixed to the upper piece 21a. If necessary, fix the fixing screws 27 and 28 on the fixed support piece 21b and the movable support piece 2.
It may be screwed through from the outer surface of 1c and its tip may press both the inner and outer surfaces of the fence 30. The reflective prism pole 12 is supported by the clip 24 of the setter B, and a part of the stone protrusion 13 is placed and supported on the upper surface of the fence 30, so that the center of the crosshair 20 provided on the stone protrusion 13 is the measuring point 32, For example, it is placed on the boundary stone 31. If necessary, as shown in FIG. 7, hook the hanging thread 19 of the hanging ball 18 onto the hanging thread attachment hook 17, and rotate or rotate the clip 24 so that the center of the hanging ball 18 is on the measuring point. Adjust by tilting. Also, depending on the location of the measurement point, the universal joint mechanism 25
By replacing the male threaded portion 25' of the setter B with the screw hole 26 at an appropriate position in the upper piece 21a of the mounting frame 21, the reflective prism pole 12 supported by the clip 24, that is, the reflective prism 11
Correctly locate the position vertically above the measuring point 32,
It can be adjusted so that a part of the stone protrusion 13 is placed and supported on the upper surface of the wall 30.

As mentioned above, the present invention has a measuring point located directly under the outer corner, inner corner, outer surface, or inner surface of a block wall or other fence, and the conventional reflecting prism support using a tripod or an ordinary pole. In this case, even if it is impossible to set the reflecting prism correctly on the measurement point, the setter is fixed to the wall, the clip is rotatable and tiltable, and the reflecting prism pole is supported by the clip with pressure. Since a part of the stone protrusion, which has a crosshair in the center of the transparent plate, is supported on the top of the wall, it is easy to attach the setter to the wall and the reflective prism pole to the clip, and the reflective prism is This has the effect of allowing the station to be positioned correctly vertically above the station. Further, since the setter can adjust the distance between the fixed support piece and the movable support piece of the mounting frame, the setter can be attached to any thickness of the fence.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the reflective prism fixing device for surveying according to the present invention, Figure 2 is an enlarged vertical cross-sectional view of a part of the reflective prism pole, and Figure 3 shows a measurement point located just below the outside of the corner of the block wall. Perspective view showing the case where it exists, No. 4
The figure is a perspective view showing the case where the measurement point is located directly below the inside of the corner of the block wall, and Figure 5 is a perspective view showing the state where a part of the stone protrusion of the reflective prism pole is placed on the corner of the wall. Figure 6 is a perspective view showing the mounting position of the surveying reflecting prism fixing device on the wall and the supporting state of the reflecting prism pole when the measurement point is located directly below the outer corner of the wall, and Figure 7 is directly below the wall surface. A perspective view showing the installation position of the surveying reflecting prism fixing device on the wall and the supporting state of the reflecting prism pole when there is a measurement point in the area. Figure 8 is a mounting frame showing the state in which the universal joint mechanism is attached to the mounting frame. It is an enlarged sectional view of a part. A...Reflecting prism for surveying, B...Setter,
11...Reflection prism, 12...Reflection prism pole, 13...Transparent plate-shaped stone protrusion, 14...Screw,
15...Through hole, 16...Circular recessed hole, 17...Hook, 18...Dipball, 19...Dipball thread, 20...Cross wire, 21...Mounting frame, 21a...Above the mounting frame Piece, 21b... Fixed support piece of the mounting frame, 21c...
Movable support piece of mounting frame, 22... Fitting hole, 23...
...Fixing screw, 24...Clip, 25...Universal joint device, 25'...Male thread part, 2
6...screw hole, 27, 28...fixing screw, 29...
...Connecting rod, 30...Fence, 30'...Corner of wall, 3
0″...Fence, 31...Boundary stone, 32...Measurement point.

Claims (1)

[Scope of utility model registration request] A transparent plate-shaped stone protrusion is fixed to the lower surface of a reflective prism pole with a reflective prism fixed to the upper part, and a crosshair is formed on the stone protrusion so that the intersection of the crosshairs is located at the center of the transparent plate. A reflective prism A for surveying has a through hole formed in the center of the pole and a hanging thread attachment hook provided at the center of the lower end surface of the reflective prism pole, a fixed support piece hanging perpendicularly from the upper piece, and a fixed support piece hanging vertically from the upper piece. A clip configured to be able to clamp and support a reflective prism pole is attached to the top surface of the upper piece of the mounting frame, which is made up of a movable support piece whose upper part can be slid and fixed on one piece, via a universal joint mechanism. A surveying reflective prism fixing device consisting of the attached setter B.