JPH0829173A - Supporting device for survey pole - Google Patents

Abstract

PURPOSE:To provide a supporting device for a survey pole which can easily adjust a set posture of a survey pole. CONSTITUTION:A base 2 and a cover 7 are united to form a supporting body 8. The base 2 has three mounting legs 4 which can be adjusted in length by adjusting screws. A doughnut-shaped slide body 9 having an insertion hole 9a is fitted in a slidable fashion to the supporting body 8. There are screw holes 8a directed to the center of the supporting body 8 at three points equally dividing an outer circumferential surface of the supporting body 8. A pusher 10 screwed into the screw hole 8a is moved forward/backward while a level of the supporting body 8 is adjusted by turning a disc-like washer 4b, thereby sliding the slide body 9. An inclination of a survey pole P is thus adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a survey pole support device, and more particularly, to a survey pole for supporting a survey pole (including an antenna pole) in a vertical posture provided on the top of a survey tripod. Regarding the pole support device.

[0002]

2. Description of the Related Art Conventionally, when an antenna pole is set up at a measuring point, a dedicated stand or a tripod for surveying is used, and a wire may be used together. By the way, the surveying tripod is generally relatively simple and does not have a device for adjusting the support position and inclination of the pole.

[0003]

Therefore, it takes a lot of work to support the long antenna pole in the vertical posture by adjusting the posture of the surveying tripod itself or by adjusting the wire length. Further, when the pole supported by the surveying tripod is tilted, there is a problem in that the lower end (stone tip) of the pole easily comes off the measuring point.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a surveying pole supporting device which can easily adjust its posture when the surveying pole is stood.

[0005]

To this end, the following surveying pole support device was created. That is, according to the first aspect of the present invention, the support body provided on the leg head of the tripod so as to be adjustable in inclination through the adjusting screw is provided with the insertion hole through which the surveying pole to be supported can be vertically inserted. A pusher that pushes the pole in a lateral direction substantially orthogonal to the pole axis and tilts the pole to a predetermined posture is provided so as to be movable back and forth. In the invention according to claim 2, the surveying pole to be supported can be vertically inserted into the support body provided on the leg head of the tripod via the adjusting screw so that the tilt can be adjusted, and the outer diameter of the pole is almost the same. A slide body having insertion holes of equal diameter is mounted slidably in any lateral direction substantially orthogonal to the pole insertion direction, and a pusher for sliding the slide body to an appropriate position is provided so as to be movable forward and backward. There is.

[0006]

In the surveying pole support device according to the first aspect, the pole is inserted in the insertion hole of the support body whose inclination is adjusted by the adjusting screw, and then the pusher is moved back and forth to move the pole in the lateral direction. Push to tilt. In the survey pole support device according to the second aspect, when the pusher is moved forward and backward, the slide body slides to move the position of the insertion hole, and as a result, the pole is pushed laterally and tilted.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the surveying pole support device 1, and FIG. 2 is a sectional view taken along line AA of FIG. As shown in both figures, an insertion hole 2a is formed in the center of the lower surface of the base 2 having a short cylindrical shape, and three legs 3 are vertically provided around the insertion hole 2a. The male screw portion 4a of the mounting foot 4 is screwed into and out of the female screw portion 3a of the leg 3, and the disc-shaped operation knob 4 is attached to the mounting foot 4.
b is fixed. As shown in the enlarged cross section of FIG. 3, the mounting foot 4 is formed with a collar 4c, on which a thin resin ring 5 and a truncated cone-shaped brass abutment body 6 rotate and rotate. It is inserted so that it can move up and down. The inverted conical lower end of the mounting foot 4 has a rounded tip so that it can easily slide on a support surface 25 (described later). The female screw portion 3a and the male screw portion 4a are the adjusting screws according to the invention.

The base 2 is covered with a short cylindrical cover 7 having an insertion hole 7a having the same diameter as the insertion hole 2a, and the two are fitted together to form a support 8 in the present invention. are doing. A donut disk-shaped resin slide body 9 having a diameter much smaller than the inner diameter of the peripheral wall of the base 2 is mounted on the support body 8 so as to be slidable in any direction along the board surface. An insertion hole 9a formed in the center of the slide body 9 in a direction perpendicular to the board surface.
Is a diameter approximately equal to the outer diameter of the surveying pole to be supported,
Moreover, the inner edge portion is formed in a semicircular cross section (see FIG. 2), and the surveying pole (including the antenna pole) P inserted vertically can be tilted in the insertion hole 9a without rattling. There is.

Further, on the outer peripheral surface of the support body 8, the center of the support body 8 (insertion holes 2
the screw hole 8a toward the axis connecting the centers of a and 7a)
The base 2 and the cover 7 are simultaneously processed and provided. A bolt-shaped pusher 10 is screwed into the screw hole 8a, and when the pusher 10 is advanced, the tip end thereof comes into contact with and separates from the outer peripheral surface of the slide body 9. In addition,
A level 7b is attached to the upper surface of the cover 7.

The survey pole support device 1 of this embodiment is detachable from the head of a tripod. This structure will be described. As shown in FIG. 4, three fixed seats 21 are provided on the leg of the surveying tripod 20, and the upper seat 22 of the fixed seat 21 is attached to the mounting foot 4. A large hole 23 through which the abutment body 6 can be inserted and an oval hole 24 having a diameter corresponding to the male screw portion 4a of the mounting foot 4 are formed in a gourd shape. Each fixed seat 2
As for the upper plate 22 of FIG. 1, the lower end of the mounting foot 4 is the fixed seat 2
When the first contact surface 25 is in contact with the support surface 25, the height is set to leave a small gap between the lower surface of the operation knob 4b and the upper plate 22, and the central portion is slightly curved to a concave curved surface. Has become.

When the surveying pole support device 1 is mounted on the leg of the surveying tripod 20, the mounting foot 4 is passed through the large hole 23 of the fixed seat 21 together with the abutment body 6, and the lower end of the mounting foot 4 is attached. The entire support body 8 is rotated in the clockwise direction while being in contact with the support surface 25 of the fixed seat 21. Then, referring to FIG. 3, the mounting foot 4 is guided to the oval hole 24 so that the abutting body 6 is moved to the upper plate 2.
The contact body 6 and the collar 4c of the mounting foot 4 are pressed downward by the action of the curved surface portion of the upper plate 22. That is, the mounting foot 4 is fixed to the fixed seat 21.
It is tightly pinched and held in place. Since the resin ring 5 is interposed between the collar 4c of the mounting foot 4 and the abutment body 6, when the operation knob 4b is rotated, the mounting foot 4 can be relatively lightly rotated in its holding position. The survey pole support device 1 does not necessarily have to be detachable, and may be fixed to the head of a tripod.

Next, the attitude adjustment by the surveying pole support device 1 will be described. As shown in FIG. 7, the surveying tripod support 20 with the surveying pole support device 1 is installed at an appropriate position, and the tripod is roughly adjusted while watching the level 7b to support the surveying pole support device 1. The upper surface of the body 8 is kept substantially horizontal. Then, the surveying pole P is inserted into the insertion hole 9a of the slide body 9, and the lower end portion (stone projection) of the pole P is made to coincide with the measuring point.

Then, in order to stand the pole P vertically, 3
The operation knob 4b at a location is turned to adjust the length of each mounting leg 4 to adjust the inclination of the support body 8 and the pusher 10
Is operated to move back and forth to slide the slide body 9 in a substantially horizontal direction (a horizontal direction orthogonal to the axis of the pole).
At this time, referring to FIG. 5, the pushers 10 at the three positions can push the outer peripheral surface of the slide body 9 from three directions at intervals of approximately 120 °, and the insertion hole 9a can be moved to an arbitrary position. Therefore, it is possible to easily move the support position of the surveying pole P within a range that does not deviate from the diameter of the insertion hole 7a (2a), and the surveying pole P tilts accordingly. Moreover, since the slide body 9 is in contact with the surveying pole P in a substantially line contact state (see FIG. 2), the lower end portion (stone tip) of the surveying pole P is tilted without being displaced from the survey point. be able to. In addition, when it is desired to readjust the position of the ridge, it is possible to use it by sliding the slide body 9, which makes the work much easier than readjusting the surveying tripod 20. The length adjustment of the mounting foot 4 and the position adjustment of the slide body 9 described above may be appropriately used.

As described above, in this embodiment, the surveying pole P is inserted into the insertion hole 9a of the slide body 9 with a small clearance, and the support body 8 for supporting the slide body 9 is tilted and the support body 8 is tilted. With the slide of the slide body 9, the surveying pole P is stably tilted to surely support the surveying pole P at a desired position (vertical posture). Particularly, when finely adjusting the posture of a tall antenna pole. It is effective.

In addition to this, the survey pole support device may be configured without the slide body 9. For example, in the pusher 10a shown in FIG. 6 (a), a tilt type pad is attached to the tip of the male screw portion, and the pusher 10a shown in FIG.
In the pusher 10b shown in (1), a ball is attached to the tip of the male screw portion. That is, these pushers 10a, 1
Reference numeral 0b indicates that the tip end is brought into direct contact with the surveying pole P.

By the way, as can be understood from the above description of the attitude adjustment, if the surveying tripod 20 on which the surveying pole support device 1 is mounted can be installed at a more accurate position, the surveying pole P can be correspondingly moved. Fine adjustment becomes easy and labor is reduced. From this point of view, an example of installing the surveying tripod 20 using plumb bob will be described below. In FIG. 8 (a), the plumb bob 11 causes the thread 11b to hang down from the center of a disk-shaped seat plate 11a formed to have substantially the same diameter as the insertion hole 7a of the support 8, and the thread 11b is hung on the tip of the thread. The weight 11c is attached, and the seat plate 11a is provided with a thread stopper (not shown) capable of arbitrarily changing the payout length of the thread 11b.

When installing the tripod 20 for surveying, as shown in FIG. 8 (b), first, the seat plate 11a is fitted into the insertion hole 7a of the support body 8 and placed on the slide body 9.
The thread 11b is made to have an appropriate length, and the weight 11c is aligned with the measuring point. At this time, the surveying tripod 20 is positioned and its posture is adjusted, and the operation knob 4b is turned while observing the level 7b so that the upper surface of the support 8 is substantially horizontal. This work is relatively easy and has good workability since it is before mounting the surveying pole P on the surveying tripod 20, and the leg center (center of the support 8) is accurately aligned with the survey point. It is possible to When the posture adjustment is completed, the plumb bob 11 is removed and the surveying pole P is attached. That is, since the surveying pole P can be accurately set only by inserting the surveying pole P into the insertion hole 9a of the slide body 9, the fine adjustment performed by operating the pusher 10 thereafter is very simple, or It becomes unnecessary.

In the above example, the seat plate 11a is formed to have an outer diameter smaller than that of the insertion hole 7a, and the lower surface of the seat plate 11a is fitted into the insertion hole 9a of the slide body 9 for positioning. You may make it the structure provided with a part. In this case, by sliding the slide body 9 with the pusher 10, the supporting position of the plumb bob 11 can be appropriately shifted, and fine adjustment for matching the weight 11c to the measuring point can be performed. It becomes easier to install the tripod 20.

It is needless to say that the present invention can be implemented in variously modified forms based on the knowledge of those skilled in the art other than the above-mentioned embodiments.

[0020]

As described above in detail, according to the surveying pole support device of the present invention, the posture can be easily and surely adjusted when the surveying pole is set up vertically at the measuring point, and therefore the installation is possible. There is an effect that work can be performed easily and quickly.

[Brief description of drawings]

FIG. 1 is a plan view of a survey pole support device.

FIG. 2 is a vertical cross-sectional view of a survey pole support device.

FIG. 3 is an enlarged sectional view of a mounting leg.

FIG. 4 is a perspective view showing a head of a surveying tripod.

FIG. 5 is a diagram illustrating an example of a slide position of a slide body.

FIG. 6 is a perspective view showing a pusher of another example.

FIG. 7 is a diagram in which a survey pole support device is attached to a survey tripod.

8A and 8B show an example in which a plumb bob is used for installing a surveying tripod, FIG. 8A is a perspective view of the plumb bob, and FIG. 8B is a cross-sectional view in which the plumb bob is attached to the leg head.

[Explanation of symbols]

 1 Survey pole support device 2 Base 2a Insertion hole 4 Mounting foot 7 Cover 7a Insertion hole 8 Support body 9 Slide body 9a Insertion hole 10 Pusher 20 Surveying tripod P Surveying pole

Claims (2)

[Claims] 1. A support body, which is provided on the head of a tripod so that its inclination can be adjusted via an adjusting screw, is provided with an insertion hole through which a surveying pole to be supported can be vertically inserted, and the pole is attached to the pole axis. 1. A survey pole support device comprising a pusher that is capable of advancing and retracting movement and is pushed in a lateral direction substantially orthogonal to the above to tilt it into a predetermined posture. 2. A support body, which is provided on the head of a tripod via an adjusting screw so as to be adjustable in inclination, allows a surveying pole to be supported to be vertically inserted therein, and has an insertion hole having a diameter substantially equal to the outer diameter of the pole. A pole support device for surveying, wherein a slide body having the above is slidably mounted in an arbitrary lateral direction substantially orthogonal to the pole insertion direction, and a pusher for sliding the slide body to an appropriate position is provided so as to be movable back and forth.