JPS637847Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ranging theodolite having a housing containing a collimating telescope and a ranging optical system, and a mount that holds the housing so as to be rotatable about a horizontal axis.

Conventionally, a theodolite for measuring horizontal and altitude degrees and a so-called light wave distance meter for electro-optically measuring the distance to a measurement point are separate and independent devices, and both devices are used alternately during surveying. I am using it to conduct measurements. However, in recent years, in order to meet the demand for increasing the efficiency of surveying operations, ranging theodolites have appeared that have both the angle measurement function of a theodolite and the distance measurement function of a light wave distance meter. In this ranging theodolite,
It is required that the collimating telescope is supported by a cradle so as to rotate around a horizontal axis, and the cradle must be configured to rotate around a vertical axis together with the collimating telescope. In addition, the cradle has a built-in optical system or electrical system for reading horizontal and altitude degrees, so when installing an optical rangefinder in this theodolite, the cradle must be centered around the horizontal axis of the cradle. It is desirable to house the collimating telescope and the distance measuring optical system and electrical system of the optical distance meter in a rotatable housing.
In addition, since the sighting telescope of the theodolite must be able to be reversed for forward and reverse sighting, and also be capable of vertical sighting, the outermost diameter of the housing is limited by the mount. be done. Therefore, various parts must be arranged in the housing so that there is as little wasted space as possible, and on the other hand, the focusing knob of the collimating telescope and the diopter knob of the eyepiece must protrude from the housing due to their functions. I have to let it happen.

As a conventional example of a ranging theodolite that satisfies the above requirements, as shown in FIG.
A housing 4 that can be rotated around the housing 4 is arranged, and a protrusion 8 for attaching the eyepiece is provided at the rear of the housing 4 (on the side of the eyepiece 6). Place the handle 10. Furthermore, a device in which an eyepiece 14 of a collimating telescope is disposed on the protruding surface 12 of the protruding portion 8 is known. A diopter adjustment knob 16 is arranged around the eyepiece section 14. Further, an eyepiece section 18 for reading horizontal and altitude degrees is arranged horizontally alongside the eyepiece section 14, and a diopter adjustment knob 19 is arranged around it. Further, a measurement value display window 20 of the light wave range finder is provided at the upper rear surface of the housing 4. Furthermore, a housing tightening knob 24 for fixing the collimating telescope, that is, the housing 4 to the canopy part 1, is provided on the side of the canopy part 1, and a housing tightening knob 24 for fixing the collimating telescope, that is, the housing 4 to the canton part 1, and a housing tightening knob 24 for fixing the collimating telescope, that is, the housing 4 to the canton part 1; A fine adjustment knob 26 for rotating the angle is coaxially provided.

The operation of the ranging theodolite having the above configuration is as follows. First, the measurer loosens the housing tightening knob 24 and rotates the housing 4 containing the sighting telescope so that the sighting telescope roughly aims at the measurement point.
Tighten the housing tightening knob 24 again. after that,
Turn the fine adjustment knob 26 so that the sighting telescope accurately aims at the measurement point. Prior to or in parallel with this adjustment work, the measurer should turn the diopter adjustment knob 1.
6 and 19 to adjust the diopter of the collimating telescope and the eyepieces 14 and 18 of the horizontal and elevation reading optical system to suit your eyes, and also rotate the focusing rotary handle 10. Rotate to focus the sighting telescope on the measurement point. Here, read and record the horizontal and elevation angles. Next, loosen the tightening knob 24, turn the sighting telescope or housing 4 around the horizontal axis 2, aim the sighting telescope approximately at the measuring point, sight the measuring point again, and measure the horizontal and vertical angles at that time. Read and record. Further, the distance measuring system is operated to measure the distance in the measurement point collimation state either before or after this reversal.

By the way, once the diopter adjustment knobs 16, 19 and the focusing rotary handle 10 have been adjusted, fingers or the like should not touch these members until the measurement is completed. This is because not only is it inefficient that the adjustment work must be performed again, but also readjustment of the diopter and refocusing of the collimating telescope result in deterioration of measurement accuracy. Therefore, when inverting the housing 4 around the horizontal axis 2 in the ranging theodolite with the above configuration, and when roughly aiming the collimating telescope toward the measuring point, the collimating adjustment knob 1
6, 19 and the focusing rotation handle 10 must be avoided by the measurer's fingers, and it is common practice to place the measurer's fingers on the upper and lower surfaces of the housing 4. This reversing operation and rough sighting operation not only have extremely poor operability, but also force is applied to the housing 4 from a direction other than its rotational direction, that is, force is applied to the rangefinding theodolite body from an oblique lateral direction. It has the disadvantage of reducing accuracy.

The purpose of the present invention is to provide a theodolite that eliminates the above-mentioned conventional drawbacks, and its structural features include a housing containing a collimating telescope system and a ranging optical system; , a rangefinding theodograph having a mount for holding the housing rotatably about a horizontal axis, wherein the housing is provided with a protrusion having a protruding surface for attaching an eyepiece, and the housing is provided with a protrusion around the protrusion. A rotary handle for focusing of the collimating telescope is provided, and a housing turning operation section is provided near the protrusion.

Hereinafter, embodiments of the present invention will be described based on the drawings. In FIG. 2 showing the ranging theodolite 100 according to the present invention, devices and members having the same configuration and function as those in FIG. 1 are designated by the same reference numerals as in FIG. 1, and their explanations will be omitted. Ranging theodolite 100
As shown in FIG. 2, the housing turning operation member 1 is disposed between the eyepiece 14 of the collimating telescope that is arranged horizontally and the eyepiece 18 for reading the horizontal and altitude degrees.
02 is placed. The housing turning operation member 102 includes two handle portions 104 protruding from the upper and lower ends of a vertically long main body in a direction perpendicular to the longitudinal direction. The height of the handle part 104 is the same as that of both eyepiece parts 1.
It is determined so that there is no problem with collimation and reading by 4 and 18. The housing turning operation member 102 is
In the eyepiece attachment protrusion 8, the center of the eyepiece attachment protrusion 8, which is located midway between the eyepiece 14 of the collimating telescope and the eyepiece 18 for reading horizontal and altitude degrees, is vertically aligned. It is installed so that it passes in the direction. In addition, the housing rotation operation member in this embodiment is constructed of a one-piece body that vertically passes through approximately the center of the eyepiece attachment protrusion and has handles at both upper and lower ends. The handle portion may be constructed separately. Further, in this embodiment, the housing rotation operation member is attached to the eyepiece attachment projection, but the housing rotation operation member may be integrated with the projection, or the handle portion 1
It goes without saying that 04 may be formed as a recessed part in the protruding part 8 for attaching the eyepiece part, instead of the above-mentioned protruding type.

In the ranging theodolite configured as described above, the housing 4 including the sighting telescope can be reversed by holding the housing turning operation member 102, and the force for this reversing operation is mostly applied to the horizontal axis of the housing 4. 2, the force that acts on the ranging theodolite from the oblique lateral direction as in the conventional method can be minimized, and measurement accuracy can be maintained at a high level. In addition, two handle parts 1
04 and diopter adjustment knob 1 of both eyepieces 14 and 18
6, 19 and the focusing rotary handle 10 are arranged adjacent to each other, the measurer can concentrate his/her attention on collimation and reading, which improves the efficiency of measurement work and measurement accuracy. It has an extremely large effect. Furthermore, even if the optical distance meter is compactly incorporated into the theodolite and the protrusion from the housing including the collimating telescope is shortened and reduced as much as possible, new problems will arise in terms of functionality and configuration. Handle portion 104 with a simple structure according to the present invention
can be attached to the housing to obtain the above effects, and the present invention is both practical and economical.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional distance measuring theodolite, FIG. 2 is a perspective view of an embodiment of the present invention, and FIG. 3 is a perspective view of a housing turning operation member according to the present invention. 1: mount, 2: horizontal axis, 4: housing,
8: Projection for attaching eyepiece, 10: Rotating handle for focusing, 14: Eyepiece of collimating telescope, 18: Eyepiece for reading horizontal and elevation degrees, 24: Housing tightening knob, 100 : Rangefinding theodolite, 102: Housing turning operation member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a ranging theodolite having a housing containing a collimating telescope system and a ranging optical system, and a mount that holds the housing so as to be rotatable about a horizontal axis. , a protruding part having a protruding surface for attaching an eyepiece to the housing is provided, a rotary handle for focusing of the collimating telescope is disposed around the protruding part, and the housing turning operation part is attached to the protruding part. A distance measuring theodolite characterized by being installed nearby. (2) The distance measuring theodolite according to claim 1, wherein the housing rotating portion is disposed on the protruding surface of the protruding portion. (3) The range-finding theodolite according to claim 1 or 2, wherein the housing rotating portion is comprised of a pair of vertically protruding handle portions.