JP2511697Y2 - Surveying leg - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveying leg, and more particularly to a surveying leg whose configuration can be changed depending on the installation location.

[0002]

2. Description of the Related Art Conventionally, a surveying tripod has a pedestal and a pedestal as constituent elements, and the pedestal has a surveying instrument or the like mounted thereon, and the three pedestals attached to the pedestal are predetermined. The spread angle or the pedestal can be expanded and contracted for adjustment.

[0003]

The above-described conventional tripod for surveying is provided at the legcaps at intervals of 120 degrees, and the pedestal can be expanded or contracted or the opening degree with respect to the legcaps can be adjusted. However, depending on the condition of the installation surface, which is the installation location, it may be difficult to adjust the opening of the pedestal and the extension / contraction of the pedestal alone. In addition, there is a problem that extra work is required to dispose the tripod on the tripod installation surface. To give an example of such a problem, for example, when surveying or the like is required on a steel frame or a ridgeway 30 that crosses as shown in FIG. Open at intervals of
Since it is not possible to adjust the distance or increase the number of other pedestals immediately, place a flat plate 31 at the intersection of the cross and set a survey tripod on the flat plate 31, as shown in FIG. There must be. Also, when installing a surveying instrument between a steep slope or wall surface and level ground, it is not possible to deal with it by simply adjusting the expansion and contraction of the pedestal or by arranging the tripod pedestal. Has become difficult.

The object of the present invention is to adjust the pedestal in the same way as a normal tripod installation without requiring any work on the installation surface of the leg, so that stable and simple operation can be performed depending on the situation of the installation location. It is to provide a surveying leg that can be reliably installed.

Another object of the present invention is to provide a surveying leg having a pedestal corresponding to the purpose of use of various surveying.

[0006]

A surveying leg according to the present invention has at least three leg caps having at least four mounting portions and a connecting portion detachably connected to the mounting portions of the leg heads. And one pedestal.

[0007]

In the surveying leg according to the present invention, the pedestal can be detachably connected to the desired position of the leg head having at least four mounting portions through the connecting portion, and the number of the pedestal is Unlike the conventional example, the number of pedestals is not limited to three, so that the configuration can be made according to the situation of the installation place. For this reason, even in places where it is difficult to adjust the pedestal opening and pedestal extension and contraction, it is possible to change the connection between the pedestal and the pedestal with the same simple operation as before. Stable and reliable installation is possible. You can also replace the pedestal and pedestal,
The type of pedestal can be changed to make it an appropriate surveying leg that corresponds to the purpose of use.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

FIGS. 1 to 6 show an embodiment of a surveying leg according to the present invention. FIG. 1 is a perspective view showing the apical side of the surveying leg, and FIG. 2 is a pedestal leg. 3 is a partial side view showing the vicinity of the head-side end, FIG. 3 is a perspective view of a state in which the leg side bracket is closed, FIG. 4 is a perspective view of the state in which the bracket is also open, and FIG. 6 is a perspective view of the leg head.
An embodiment of a surveying leg according to the present invention will be described below with reference to these drawings.

The surveying leg S of this example is, as shown in FIG.
The main component is a leg 1 on which a surveying instrument or the like is placed, and a plurality of pedestals 2 detachably attached to the leg 1.

The leg head 1 is provided with a plurality of leg mounting bars 3 for mounting a plurality of pedestals 2 around the flat plate member 1a. The leg head 1 of this example has a shape in which the flat plate member 1a is formed into a substantially regular octagon, and the mounting portion 4 of the leg mounting bar 3 is integrally projected at each corner of this octagon. A leg mounting bar 3 as a pedestal mounting portion is fixedly attached between the portions 4 (see FIGS. 5 and 6). Also, the leg 1 of this example
Has a configuration in which the upper legcap 16a and the lower legcap 16b are joined in the vertical direction (vertical direction in FIG. 1).

The leg mounting bar 3 of this embodiment is a flat plate member 1a.
It is fixed between the mounting parts 4 so that a space 15 is formed between the mounting parts 4 and (see FIG. 5). Further, the leg mounting bar 3 of this example is formed in a cylindrical shape, but the shape is not particularly limited to this. In addition, the leg head 1 of this example has eight leg mounting bars 3
However, the present invention is not limited to this, and the number of the mounting portions of the pedestal 2 may be four or more. Reference numeral 1b is a hole in which a constant-pressure rod is arranged.

The pedestal 2 of this embodiment has a mounting bracket 5 as a connecting portion at one end of a member formed in a prismatic shape, and is connected to the pedestal 1 via the mounting bracket 5. . As shown in FIG. 2, the pedestal 2 of this example shows a case where four pedestals 2 are mounted on every other leg mounting bar 3, and the mounting means will be described later.

The mounting bracket 5 of this embodiment is composed of a movable bracket piece 6 and a fixed bracket piece 7 as shown in FIGS. 1, 3 and 4. The movable bracket piece 6 is
The fixing frame portion 6a formed in a semi-cylindrical shape is provided with a flat plate-shaped fixing tongue piece 6b. A hole (not shown) is formed in the substantially central portion of the fixed frame portion 6a, and the bar fixing screw 8 is screwed into the hole. A bar fixing pad 9 having an arcuate surface is attached to the tip of the bar fixing screw 8 opposite to the head 8a. The bar fixing pad 9 may be fixed to the end of the bar fixing screw 8 or may be movably attached. Further, the fastening tongue piece 6b is provided with two holes 11 through which the fixing screws 10 pass (see FIG. 4).

On the other hand, in the fixed bracket piece 7, a pedestal fitting portion 7b is extended to a fixed frame portion 7a having the same shape as the movable bracket piece 6 described above. The pedestal fitting portion 7b of this example is formed in a prismatic shape with a bottom, and one end of the pedestal 2 is fitted and inserted. Of the planes of the pedestal fitting portion 7b, the surface 1 to which the fastening tongue piece 6b of the movable bracket piece 6 is joined.
A female screw 13 with which the fixing screw 10 is screwed is formed from the second side to the inside of the pedestal 2 (see FIG. 4).

The movable bracket piece 6 and the fixed bracket piece 7 of this embodiment are connected to each other by providing a well-known hinge 14 at the side ends of the fixed frame portions 6a, 7a of the two, and are connected to each other. The piece 6 is rotatable around the hinge 14.

In this example, the butt (not shown) which is the tip of the pedestal 2 is formed in a conical shape as in the conventional case.

Next, the procedure for assembling the main surveying leg S in the above-mentioned configuration will be described.

First, the mounting bracket 5 as a connecting portion is opened as shown in FIG. Then, the fixing tongue piece 6b of the movable bracket piece 6 is inserted through the gap 15 (see FIG. 5) between the flat plate member 1a of the leg head 1 and the leg mounting bar 3 as the pedestal mounting portion, and the bar fixing pad is provided. 9 to the leg mounting bar 3, close the movable bracket 6,
The movable bracket piece 6 is fixed to the fixed bracket piece 7 with the fixing screw 10. After that, the bar fixing screw 8 may be turned so that the leg mounting bar 3 is fixed between the fixing frame 7a and the bar fixing pad 9.

The surveying leg S assembled as described above
Can open the pedestal 2 and screw in the bar fixing screw 8 to fix the pedestal 2 at the place where the leg is installed. Therefore, as shown in FIG. 2, every other leg mounting bar 3
When two pedestals 2 are mounted, for example, even in a ridgeway 30 crossing as shown in FIG. 7 without using the flat plate 31 as shown in FIG.
Can be opened, and the bar fixing screw 8 can be screwed in to fix and install the pedestal 2. In this case, connect each pedestal 2 to the ridge 3
Even if it is placed between 0 and 30 such as a ridge,
It may be located above 0.

In the above embodiment, an example in which the same pedestal is used is shown, but the present invention is not limited to this, and measurement is performed, for example, on an inclined surface of a mountain as shown in FIG. 9 according to the situation of the leg installation location. In this case, one pedestal can be fixed-length type, the other two pedestals can be telescopic type, pedestal with different tip can be used, and the pedestal shape can be changed. Can be changed, that is, the relationship between the pillars can be changed.

Further, in the above embodiment, the example in which the pedestal 2 is detachably attached to the pedicle 1 using the bracket 5 and the fixing screw 10 has been shown. The pedestal 1 can be attached and detached, and can be securely attached when the pedestal 2 is attached to the pedestal 1, and the pedestal 2 can be opened. It may be a pedestal 2 in which the configuration for opening 2 is different.

[0023]

[Effects of the Invention] In the surveying leg according to the present invention, the pedestal can be detachably connected through the connecting portion, and is not limited to three pedestals. Even in a place where it is difficult to adjust simply by expanding and contracting, stable and reliable installation can be performed by a simple operation by changing the connecting portion between the leg head and the pedestal. Also, since the pedestal and pedestal can be replaced, the type of pedestal can be changed and the leg for surveying can be made appropriate for the purpose of use, resulting in great practical effects such as improved work efficiency. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a leg side in an embodiment of a surveying leg according to the present invention.

FIG. 2 is a partial side view showing the vicinity of an end of a pedestal side of a pedestal used for a main survey leg.

FIG. 3 is a perspective view of the entire bracket with the bracket used for the main surveying leg closed.

FIG. 4 is an overall perspective view of the bracket with the bracket opened.

FIG. 5 is a plan view of the leg head.

FIG. 6 is an overall perspective view of a leg head.

FIG. 7 is an explanatory diagram showing an example of an installation place where the main surveying leg is installed.

FIG. 8 is an explanatory diagram for explaining a procedure when a conventional tripod for surveying is installed.

FIG. 9 is an explanatory diagram when the main surveying leg is installed on the slope of a mountain.

[Explanation of symbols]

 1 leg head 2 pedestal 3 mounting part (leg mounting bar) 5 connecting part (mounting bracket) S surveying leg

Claims (1)

(57) [Scope of utility model registration request] 1. A leg cap having at least four mounting portions, and at least three pedestals each having a connecting portion detachably connected to the mounting portion of the leg head. Surveying legs.