JP6373819B2 - Survey pole holder - Google Patents

Description

  The present invention relates to a surveying pole holding device by a biped support that holds the surveying pole vertically.

  As the holding device for holding the surveying pole vertically, the surveying pole can be mounted by the pole holding device directly provided on the leg head of the bipod or the holding piece at the end of the support arm rotatably attached to the leg head of the tripod. What is held vertically is known

For example, Patent Document 1 describes a pole holding device that includes a pole holding portion provided with a protruding portion provided on a tripod head, and a holding portion that holds a pole in which an extending portion is rotatably attached to the protruding portion. .
In Patent Document 2, a horizontal base is provided on the head of the tripod for surveying, and a support member that can be moved in a horizontal direction with respect to the base and a pole that can be rotated at the tip of the support member are elastically narrow. A surveying pole holding device composed of two narrow pressure pieces for pressure holding is described.

  Utility model registration No. 3187891   Utility model registration 02-49538

Generally, in surveying using a reflecting prism, several hundred positions are measured each day, and a tripod pole holding device is used. Has increased.
In surveying, the vertical pole scaffolding is not flat, there is a step, the station itself is lower or higher than the ground, and there is an obstacle between the station and the measuring instrument. When there is an object, surveying is performed while changing the length of the pole and changing the thickness so that the position of the reflecting prism can be moved up and down so that it can be seen from the measuring instrument.
In FIG. 2 of Patent Document 1, the clamping pole 2 located at the leg head cannot be clamped unless a surveying pole having at least the same length as the leg 1b is prepared in the literature. . Even if the leg 1b is greatly widened to lower the position of the leg head and sandwich it, the whole becomes unstable, and it takes time to install at the measuring point.
On the contrary, in the pole for surveying longer than the length of the leg 1b of Patent Document 1, the center of gravity of the pole is above the head of the leg. Since the gap between the head and the holding part of the leg head becomes longer, the pole tip protrusion is greatly swayed and unstable, and there is a problem that it takes time to install the surveying pole at the measuring point.
In the case of performing distance measurement in Patent Document 1, the configuration is such that the reflecting prism 8, level 7 and the like are attached to the surveying pole 6 as shown in FIG. 6 of the present invention. 2 and the reflecting prism 8 having the above-described configuration are attached to each other, it becomes difficult to attach, and as described above, the attaching positions overlap and are difficult to attach due to the height of the measuring point, the inclination of the ground, or the like. There is a problem to become.
In addition, if the pole holder 15 attached to the movable arm 14 of the document 2 is a single component of the surveying pole P within the movable range of the movable arm 14, it can move up and down along the pole and can be clamped. The pinching pieces 16a and 16b are fixed to the pole holder 15, and the pinching pieces 16a and 16b cannot move alone in parallel with the pole holder. Therefore, the distance measurement shown in FIG. 6 of the present invention is performed. When the surveying pole 6 configured as described above is attached, the attachment positions of the sandwiching pieces 16a and 16b are limited. Therefore, the sandwiching pieces may be sandwiched at an unstable position or may be held by the reflecting prism 8. There is a problem that cannot be done.
In the pole holding part 2 of FIG. 1 of Patent Document 1 and the clamping pieces 16a and 16b of Patent Document 2, only a measuring pole having a fixed thickness can be clamped, and if the diameter of the surveying pole changes, the pole There is a problem that the pole holding part 2 and the sandwiching pieces 16a and 16b corresponding to the diameter must be prepared and changed.

In order to solve the above-mentioned problem, the invention of claim 1 is a survey pole holding device for holding a survey pole arranged in the vertical direction, and a pair of rod-shaped legs,
An opening / closing connecting portion for connecting the heads of the pair of rod-shaped leg portions, the opening / closing connecting portion for connecting the lower side of the pair of rod-shaped leg portions in the connected state, and the opening / closing connecting portion; And a rod part that extends downward and holds the surveying pole, and at least two clamping tools that are provided on the rod part and clamp the pole, the clamping tool extending along the rod part And a mounting portion that is movably mounted.

According to a second aspect of the present invention, there is provided a surveying pole holding device according to the first aspect, wherein the clamping tool is connected by a main bolt parallel to the pole, and is formed to be able to open and close in the horizontal direction around the main bolt. A pair of clamping pieces that come into contact with the pole symmetrically with the direction of the clamping mouth as the center line,
The clamping tool includes a first clamping piece continuous to the clamping piece along a direction away from the bolt side, a second clamping piece continuous to the first clamping piece, and a third clamping piece continuous to the second clamping piece. including,
The first clamping piece has a first clamping contact portion that is substantially C-shaped in plan view, and the second clamping piece has a second clamping contact portion that is substantially L-shaped in plan view, and the third clamping piece is When holding the pole with the third sandwiching contact portion having a substantially L-shape in plan view, sandwiching the poles between the first contact portions, between the second sandwiching contact portions, or between the third sandwiching contact portions. Features.

  As shown in FIG. 6 of the present invention, the invention described in claim 1 is attached to the holding fixture fixing rod 4 which is connected to the leg opening / closing connecting bar 17 of the bipod head and extends downward. Since the position of the holding tool 3 is lower and lower than the head of the bipod, it can be clamped even with a short surveying pole, and the leg 5 of the bipod expands and contracts. Even if it is a pole, a high position can be clamped by extending the leg 5. In this way, even if the holding tool 3 is a short pole or a long pole, by holding the well-balanced part at two places, the fluctuation of the stone tip at the tip of the pole can be reduced and the installation at the measuring point can be performed quickly. The problem was solved.

Further, the two sandwiching tools 3 are separately movable and fixed along the sandwiching tool fixing rod 4, and are attached to the surveying pole 6 as shown in FIG. 6 of the present invention. It is possible to securely hold and fix the surveying pole 6 even when the structure of the distance measuring reflecting prism 8 is changed depending on the surveying situation. The problem was solved.

Further, in the invention described in claim 2, as shown in the detailed views of FIGS. 8 to 10 of the present invention, the holding tool 3 is connected to the first holding contact portion 13a, the second holding contact portion 13b, and the third holding pin. The shape of the contact portion 13c is used, and a surveying pole having a large or small shaft diameter can be securely held by the contact portion according to the pole diameter, and the problem can be solved.

It is a front view of the survey pole holding device concerning the embodiment of the present invention. It is a rear view of the survey pole holding device concerning the embodiment of the present invention. It is a right surface view of the survey pole holding device according to the embodiment of the present invention. It is a left surface plan view of the survey pole holding device according to the embodiment of the present invention. It is a top view of the survey pole holding device concerning the embodiment of the present invention. It is a perspective view of the survey pole holding device concerning the embodiment of the present invention. It is a perspective view of the survey pole holding device concerning the embodiment of the present invention. It is a pole holding | maintenance part A-A 'partial cross-section enlarged detail drawing which clamped the large diameter pole. It is a pole holding | maintenance part A-A 'partial cross-section enlarged detail drawing which clamped the medium diameter pole. It is a pole holding | maintenance part A-A 'partial cross-section enlarged detail drawing which pinched the small diameter pole. It is a B-B 'partial cross-section enlarged detail view of a pole holding part.

  Embodiments of the present invention will be described with reference to the drawings. 1 to 5 are drawings from various directions of the embodiment, FIGS. 6 and 7 are perspective views according to the embodiment, and FIGS. 8 to 10 are enlarged detailed views of the holding tool 3, FIG. 11 is an enlarged partial cross-sectional view of the two clamping tools 3 and the clamping tool fixing rod 4.

As shown in FIG. 6, the survey pole holding device 1 includes a pair of legs 5, a leg expansion / contraction adjustment lever 10 for extending and fixing the legs 5, and a handle leg grip 16. Is provided with a leg opening / closing connecting bar 17 which is a connecting part, provided with a holding tool fixing rod 4 of a pole holding part extending downward from the connecting bar 17, and the fixing rod 4 is provided with two holding tools 3. The two clamping parts 3 are provided with a clamping tool fixing band 14 and a clamping tool fixing bolt 15 in a clamping tool mounting part 19 movably mounted along the clamping tool fixing rod 4.

  The surveying pole holding device is fastened with a pair of leg portions 5 and a leg opening / closing connecting bar 17 at the head of the leg, and a clamping tool fixing rod 4 with a clamping tool 3 fastened by a rod fixing lever 11. It becomes the form which clamped the pole for surveying to the clamping tool 3

FIG. 6 shows a state where a pole having a length of 1 meter, in which two fixed reflecting prisms 8 and one level 7 are attached to a measuring pole having a diameter of 12 mm, is attached to the pole holding device.
When attaching the surveying pole 6 to the holding part 3 for the first time, the holding tool 3 is moved to a portion that does not hit the reflecting prism 8 or level 7 attached to the pole 6 and is attached and fixed to the holding tool 3. The fixing band 14 and the holding tool fixing rod 4 are turned and fixed with a holding tool fixing bolt 15.
Next, the clamping port of the clamping tool 3 is opened, and the pole 6 is clamped at a position corresponding to the thickness.
Next, the assembly of the apparatus is completed when the pole 6 is set up vertically, and the two legs are extended to about 60 degrees in the shape of an equilateral triangle as shown in the plan view of FIG.
If the position configuration of the surveying pole 6, the reflecting prism 8, and the level 7 sandwiched between the clamping tools 3 does not change at the time of surveying at a later date, there is no need to move or fix the clamping tool 3. It is completed simply by inserting the pole 6 into the holding tool 3.
After this, it is not much different from the conventional two-legged installation method. When moving, hold the center of the holding fixture fixing rod 4 with one hand and move to the measuring point. In the vicinity of the measuring point, the reflecting prism 8 attached to the surveying pole 6 faces the measuring instrument side so that the leg grip 21 on the two legs is gripped with the left and right hands, the whole is lifted up slightly, and the tip of the surveying pole 6 is Put the bump 9 in the top of the station,
Next, while keeping the pole 6 vertical, the two telescopic adjustment levers 10 are pulled, and the lengths of the left and right leg feet are adjusted according to the terrain to attach the leg tips to the ground.
Next, while looking at the level 7, the vertical is measured after finely adjusting the length of the leg with the adjustment lever 10 to adjust the level. If the terrain is gentle in the vicinity of the measurement point, fine adjustment can be made by moving the two leg tips little by little from the ground plane.
When the measurement is completed, the leg extension / contraction adjusting lever 10 of the two extended legs is pulled, the leg part 5 is contracted, the center part of the holding tool fixing rod 4 is held, and the next point is reached. If it is in the immediate vicinity, it moves while holding the leg grip 21 as it is.

  As shown in the perspective view of FIG. 6, the position of the holding tool 3 attached to the holding tool fixing rod 4 connected to the leg opening / closing connecting bar 17 of the bipod head and extending downward is determined by In the case of a 1-meter surveying pole 6 that is frequently used for detailed surveying by being lower and lower than the head, half of the length, 50 cm above the ground, is sandwiched by the lower clamping part 3, The 90 cm portion can be pinched by the upper holding tool 3 and is held in a well-balanced place.

As shown in the perspective view of FIG. 7, the length from the leg tip to the leg head is 1.2 meters to 1.9 meters by pulling the leg expansion / contraction adjusting lever 10 and extending the leg portion 5 in the figure. Even if it is a 3.6-meter surveying pole, the half-length of the pole is approximately 1.8 meters above the ground. The holding part 3 can be moved and fixed at a close position, the holding tool 3 is fixed to the lowermost part of the holding tool fixing rod 4, and the pole can be held by the lower holding tool 3 at a position of about 1.1 meters above the ground. Even if the leg 5 is stretched high above the ground between the pole tip stone bump 9 and the lower clamping tool 3, it is short and is clamped at two places, so there is little blurring of the pole tip bump 9 and it can be easily put on the measuring point. Quick distance measurement work.
Further, since the holding fixture fixing rod 4 is an aluminum pipe, another pipe is inserted along the hollow portion of the rod 4 so that the rod 4 can be elongated, and the lower holding fixture 3 is placed closer to the ground. A system that can be held may be used.

The enlarged view of FIG. 8 is a diagram in the case where a surveying pole having a large shaft diameter is sandwiched between the sandwiching tools 3. A pole having an axial diameter of 25 mm to 30 mm can be clamped between the first clamping contact portions 13a provided symmetrically.
The coil spring 13 is a spring that closes the front end of the clamping port. The pole is firmly clamped and held by the pressure of the coil spring 13, so that the coil spring 13 does not wobble or easily fall off.

  The enlarged view of FIG. 9 is a view in which a surveying pole 6 having a medium shaft diameter is sandwiched between the clamping tools 3. A pole having a shaft diameter of 9 mm to 25 mm can be clamped between the second clamping contact portions 13b provided symmetrically.

  The enlarged view of FIG. 10 is a diagram in the case where a surveying pole having a small shaft diameter is sandwiched between the sandwiching tools 3. A pole having an axial diameter of 5 mm to 10 mm can be clamped between the third clamping contact portions 13 c provided symmetrically.

  As shown in the enlarged cross-sectional view of FIG. 11, the holding tool 3 can be moved and fixed along the holding tool fixing rod 4. Further, the fixing means is not limited to the screw-type clamping fixture fixing bolt 15, but may be a fixing means of a type in which a leaf spring is attached to the pin.

1 Surveying pole holding device 2 Pole holding part 3 Clamp,
3a 1st clamping piece 3b 2nd clamping piece 3c 3rd clamping piece 4 Rod for fixing fixture 5 Leg 6 Surveying pole 7 Level 8 Reflecting prism 9 Stone protrusion 10 Leg telescopic adjustment lever 11 Rod fixing lever 12 Bolt hole 13a 1st clamping contact part 13b 2nd clamping contact part 13c 3rd clamping contact part 14 clamping tool fixing band 15 clamping tool fixing bolt 16 leg grip 17 leg opening / closing connecting bar 18 bolt 19 clamping tool mounting part 20 torsion coil spring

Claims (2)

A survey pole holding device for holding a survey pole arranged in a vertical direction,
A pair of rod-shaped legs,
An opening / closing connecting portion for connecting the heads of the pair of rod-shaped leg portions, the opening / closing connecting portion for connecting the lower side of the pair of rod-shaped leg portions in the connected state, and the opening / closing connecting portion; A rod portion that is connected to and extends downward, and holds the survey pole;
Provided with at least two clamping tools provided in the rod part and clamping the pole;
The surveying pole holding device characterized in that the holding tool includes a mounting portion movably mounted along the rod portion. The clamping tool is finally shaped and is connected with a required bolt parallel to the pole, and can be opened and closed horizontally with the required bolt as the center, and the pole and the pole symmetrically with the clamping port direction as the center line from the required bolt. A pair of clamping pieces in contact with each other;
The clamping tool includes a first clamping piece continuous to the clamping piece along a direction away from the bolt side, a second clamping piece continuous to the first clamping piece, and a third clamping piece continuous to the second clamping piece. including,
The first clamping piece has a first clamping contact portion that is substantially C-shaped in plan view, and the second clamping piece has a second clamping contact portion that is substantially L-shaped in plan view, and the third clamping piece is When holding the pole with the third sandwiching contact portion having a substantially L-shape in plan view, sandwiching the poles between the first contact portions, between the second sandwiching contact portions, or between the third sandwiching contact portions. The surveying pole holding device according to claim 1, wherein

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