JPH04212012A - Surveying instrument - Google Patents

Abstract

PURPOSE:To provide a surveying instrument for further improving measurement accuracy for facilitating safety and transportation without giving impact to the surveying instrument. CONSTITUTION:A handle 8 for hanging attached to a body 1 of a surveying instrument comprises both side parts 9a, 9b to be bridged over both pillars 4a, 4b of a supporting part and a horizontal part 10 which can connect between said side parts and can be held, while an electric circuit driving power source is housed at least in the side parts of the horizontal part 10 and side parts 9a, 9b. In addition engaging means which can be freely removably engaged with the body 1 are provided between the body 1 and the handle 8 while one of the engaging means has contact means 19, 27 for bringing the power source and the electric circuit into contact.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveying instrument having a built-in electric circuit for distance measurement and/or angle measurement.

0002

2. Description of the Related Art In recent years, in the field of surveying, a so-called total station (total station) has been developed which is a combination of a conventional angle-measuring transit and a distance-measuring light wave distance meter.
Station) has become widely used. In addition, transit has changed from the conventional method of optically reading a protractor to measure angles to digital, which measures angles electrically using a photoelectric or magnetic encoder and displays the measured angle values digitally and electrically. Transit has been developed and is in use. Since these total stations and digital transits have electrical circuits, they naturally require a power source. Since these devices are used outdoors, a rechargeable battery is used as a power source, and this battery is usually attached to a tripod for installing surveying equipment.

[0003] In general, in surveying work, the points to be surveyed cover a large number of points, and the surveyor operating the surveying instrument must always approach the main body of the surveying instrument in order to sight the point to be surveyed for each point. have to be in position. In order to guarantee and improve survey accuracy, it is important to avoid touching the surveying instrument unless necessary.

0004

[Problem to be solved by the invention] However, unlike conventional total stations and digital transits, it has an electric circuit for measurement and calculation, and a battery device as a power source is attached to a tripod for holding the surveying instrument body. In surveying instruments, the battery part protrudes outward from the tripod part, so there is a risk that a surveyor may touch the battery part during surveying, causing the surveying instrument to vibrate, distorting the aiming point, or causing errors in the measurement results. There were major drawbacks such as:

[0005]Also, in order to supply power from the battery to the surveying instrument itself, it is necessary to connect the battery section and the surveying instrument itself using a connection cord, but due to demands for guaranteeing and improving the measurement accuracy of surveying instruments, this has been reversed.・Since rotation and double angle measurement are required, the telescope section or ranging section must be vertically and/or
Alternatively, since it is necessary to rotate freely and many times around the horizontal axis, the connecting cord must also be made naturally long. Therefore, during surveying work, surveyors often
There is a possibility that the connection cord may be touched, which causes vibrations to be applied to the main body of the surveying instrument, which causes errors in the measurement results as described above.

Similarly, since the device is rotated around a vertical axis and a horizontal axis, if the main body and accessories are not properly balanced, vibrations may occur, which may deteriorate measurement accuracy.

[0007] Furthermore, when surveying a wide area, a traverse survey is performed in which the survey points are moved sequentially, but with conventional surveying instruments, the battery and the surveying instrument body are separated and transported each time, and then reconnected. However, the work was extremely complicated and resulted in a decrease in work efficiency.

[0008]

[Means for Solving the Problems] This invention has been made to solve the above-mentioned drawbacks, and its purpose and structural features are to make it safe and easy to transport without applying shock to the main body of the surveying instrument. Therefore, in order to further improve measurement accuracy, the hanging handle that was conventionally attached to the surveying instrument body was connected to both sides of the mount so that it could be held over both supports. A power source for driving an electric circuit is built in at least both sides of the horizontal part and both sides of the handle part, and an engaging means for removably engaging the main body is provided between the main body and the handle part. It is an object of the present invention to provide a surveying instrument in which one of the engaging means has contact means for connecting a power source and an electric circuit.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on the drawings.

FIGS. 1 to 4 show an embodiment of the present invention. In FIG. 1, a main body 1 as a total station has a conventional light wave distance mechanism, and includes a distance measuring section 2 used for distance measurement and holding this distance measuring section 2 rotatably around a horizontal axis. , and an elevation angle measuring section 3 for measuring the elevation angle is built into the support 4a, and furthermore, the distance measuring section 2 is rotatably held around a vertical axis, and a horizontal measuring section 5 for measuring the horizontal angle is built into the pedestal section. A rack section 7 is constructed by being built into the section 6.

[0011] A carrying arm 8 is attached to the upper end of the supports 4a, 4b of the support section 7 as a handle section used when carrying the main body 1. This carrying arm 8
Both sides 9a, 9b and a handle arm 10, which is a horizontal part that connects these parts and can be gripped, are integrally formed so as to span over both the supports 4a, 4b.

Rechargeable nickel cadmium batteries 11a and 11b for power supply are built into both sides 9a and 9b, respectively, to ensure balance during transportation and installation. Also, both of these batteries are attached to handle arm 1.
They are connected by a cord 12 inserted into the 0. Furthermore, in order to increase the battery capacity, the battery can be built into the handle arm 10, which is a part of the handle part, to the extent that the balance is not disturbed. Also, both side parts 9a, 9
Inside the lower end of b, a male slide body 13 is attached to a holder (not shown) that is slidable in a direction perpendicular to the plane of the paper. Further, a female slide body 14 that engages with the male slide body 13 is attached to the upper ends of the pillars 4a and 4b of the main body 1, and by engaging these two bodies, the carrying arm 8
is integrated with the main body 1. That is, between the main body 1 and the handle part 8, there are engaging means (13a, 1
3b, 14a, 14b).

Further, a lock lever 16 is attached to the lower end of the side portion 9b and to the side of the male slide body 13, and the lock lever 16 is threadedly engaged with a tension screw 15. Further, on the outer wall of the side part 9a of the carrying arm 8, a battery ON/OFF switch is provided.
A switch 17 for charging and a connector terminal 18 for charging are attached and connected to batteries 11a and 11b, respectively.

FIG. 2 is a view of the carrying arm section 8 viewed from below. FIG. 3 is a view of the main body 1 seen from above. One of the engaging means (13a, 14a; 13b, 14b) has contact means for connecting the power source 11a, 11b to the electric circuit inside the main body. in particular,
The contact means is composed of a contact portion 19 and a contact portion 27. A contact portion 19 covered with an insulator and having a contact 19a at the tip is attached to the center of the front end of the male slide 13b. The lock lever 16b is rotatably attached to a shaft 20 attached to the side portion 9b, and is rotated to the left in FIG. 2 by a coiled spring 21 wound around the shaft 20 and pressed against a pin 22 on the lock lever 16b. It is energized as follows. The lock lever 16b has a hook portion 23 formed at its tip, and a tension screw 15 that is inserted into a slot hole 24 formed in the side wall of the side portion 9b is engaged with the rear end.

On the other hand, the lock lever 16a on the side portion 9a side has almost the same structure as the lock lever 16b described above.
The only difference is that the lock release boss 25 is fixed to the rear end.

An inclined surface 26 for guiding the hook portion 23 is formed on the outer surface of the tip end of the slide female bodies 14a, 14b. Further, sloped portions 102a, 102b, and 102c are formed on both side surfaces and the top surface of the tip portions of the male slide bodies 13a, 13b.

The female slide body 14b has a contact portion 27 protruding from the rear end thereof having a contact point 27a insulated from the slide metal portion. (+
) side is connected to the contact 19a by a lead wire (not shown), and the (-) side is connected to a lead wire (not shown),
Alternatively, it is connected to the slide male body 13b by grounding. On the other hand, the contact 27a is connected to the (+) input side of the electric circuit within the survey instrument body, and the slide female body 14b is connected to the (-) input side.

Next, the engagement between the carrying arm 8 having the above structure and the surveying instrument main body is mainly carried out by the sliding male body 13.
FIGS. 4A, B, and C are explanatory illustrations of the three components, namely, the slide female body 14b and the lock lever 16b.

Note that the male slide body 13a, the female slide body 14a, and the lock lever 16a have substantially the same functions as these, so a description thereof will be omitted.

First, the inner surface 23a of the hook portion 23 of the lock lever 16b comes into contact with the inclined surface 26 of the slide female body 14b, and when the carrying arm 8 is further pushed in, the hook portion 23 is guided along the inclined surface 26. , lock lever 16
b is rotated in the direction of arrow 28 against the pressure of spring 21 (FIG. 4A). Next, the male slide body 13b is engaged with the slide groove of the female slide body 14b and slid. At this time, the tip of the hook portion 23 of the lock lever 16b is
It slides on the side wall of the female slide body 14b (FIG. 4B). Finally, the switch 19 and the contact part 27 come into contact and the contact 1
When the contact 9a and the contact 27a come into contact, the lock lever 16b
The hook portion 23 engages with a corner portion of the female slide body 14b. Screw the tension screw 15 into the slide female body 1 as shown by the broken line.
Slide male body 1 can no longer be tightened to the side wall of 4b.
Lock 3b so that it does not slide in the removal direction. Complete locking can be achieved by tightening the fixing screw 15.

[0021] Slide male body 13b and slide female body 14b
To release the engagement with the carrying arm 8 and separate the survey instrument body, loosen the tension screw 15 and push it in the direction of arrow 29, or pull it in the direction of arrow 30 to rotate the lock lever 16b. It can be separated by releasing the engagement of the hook portion 23 and sliding the male slide body 13b in the opposite direction to that described above.

In addition, in the first embodiment, by forming slope portions 102a, 102b and 102c on both side surfaces and the top surface of the tip portions of the male slide bodies 13a and 13b, the male slide bodies 14a and 14b are formed on the female slide bodies 14a and 14b. 13a,
When fitting the carrying arm 8 and the supporting column 4a, it is easy to fit the carrying arm 8 and the supporting column 4a. , 4b can be connected more smoothly. Therefore, you can easily attach the battery after charging, and after attaching it to the main unit, you can safely carry it and attach it to a tripod.The battery is housed on both sides, and the balance around the vertical and horizontal axes is good, and vibrations is less likely to occur, and measurements can be made with good accuracy.

FIGS. 5 and 6 show the contact section 1 of the above embodiment.
This is a second example regarding the structure of the contact portion 9 and the contact portion 27.

If a contact part 190 consisting of a curved spring-like contact 190a whose one end is fixed to an insulating support 190b is used instead of the contact part 19 of the first embodiment, as shown in FIG. When pressed against the contact 27a of the contact portion 27, the contact 27a is always pressed against the contact 27a due to the elasticity of the contact 190a itself.
Since the contact 7a is pressed against the contact 7a, not only is the contact reliable, but also the contact surface is always pressed against the contact 27a while being rubbed, so that the formation of a contact oxide film on the contact 190a itself is reduced and the conductivity is improved.

Further, as shown in FIG. 6, the contact portion 27 is
A cylindrical contact 270a and an insulating part 270b surrounding the entire cylindrical contact 270a
and on a part of the side surface of the insulating part 270b,
When using the contact portion 270 formed with the opening 270c wider than the width of the contact 190a, the slide male body 1
3b and the slide female body 14b when they are inserted, and the contact part 1
Even if there is an assembly error between the contact portion 90 and the slide male body 13b, a contact failure between the contact portion 270 and the contact portion 190 does not occur.

[0026]

[Effects of the Invention] As explained above, according to the present invention,
Not only can you carry it safely and reliably, but you won't have to worry about forgetting to attach the battery. In addition, since the battery is built into the carrying arm, the battery part no longer sticks out on a tripod, etc., as in the past, and by incorporating the contact part into the slide engagement means, the battery and survey There is no need for a cord to connect the main body of the machine, which improves the workability of surveying work without getting in the way, and ensures improved survey accuracy without causing any errors due to contact.

Furthermore, since the batteries are housed on both sides and can be mounted in a well-balanced manner, there is no vibration even when the instrument is rotated, and even better surveying accuracy can be guaranteed.

Note that the present invention is not limited to the above-described embodiment, and the carrying arm may be of a type that is engaged with the side surface of the column of the total station. Alternatively, the contact portion may not be integrated with the slide engagement means, and the connection cord may be taken out from the battery and connected to a connector provided above the column of the total station.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing an embodiment of a surveying instrument according to the present invention.

FIG. 2 is a rear view of the handle of the invention.

FIG. 3 is a plan view of the total station.

FIGS. 4A, 4B, and 4C are diagrams illustrating the engagement action of the slide engagement portion.

FIG. 5 is a sectional view showing a second embodiment of the contact portion of the present invention.

FIG. 6 is a sectional view showing a second embodiment of the contact portion of the present invention.

[Explanation of symbols]

4a, 4b...support 8...Handle part (carrying arm) 9a, 9b...side part 10...Horizontal part 11a, 11b...Battery 13a, 13b...Slide male body 14a, 14b...slide female body 16a, 16b...Lock lever

Claims (1)

[Claims] 1. A surveying instrument having an electric circuit built into the main body and having a handle part for suspending and carrying the main body, wherein the handle part is attached to both sides so as to span over both supports of the mount part. and a horizontal part that connects and can be gripped between the both sides of the handle, the power supply for driving the electric circuit is built in at least both sides of the horizontal part and the sides of the handle, and a The device is characterized in that it has an engaging means that detachably engages with the main body, and one of the engaging means has contact means for connecting a power source and an electric circuit. Surveying machine.