JPS6335367Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a slip-ring mechanism for supplying power or signals in a coaxial collimation type lightwave tachiometer that incorporates a lightwave distance meter and a collimation optical system in the telescope section of a theodolite. In the above-mentioned coaxial collimation type light wave takiometer, the light wave rangefinder operating source such as electric power or signal is outside the telescope.
That is, it is installed on a pillar, etc., and electrically connects the light wave distance meter operating source and the light wave rangefinder in the telescope section to supply the light wave distance meter operating source to the light wave distance meter. The above-mentioned type of light-wave takiometer relates to an improvement of the light-wave takiometer, which has an electrical connection mechanism between the light-wave distance meter operating source, such as a power source such as a battery, a keyboard, etc., and the light-wave distance meter in the telescope section. The resulting noise caused problems with ranging data.

The present invention provides a slip-ring mechanism for a light wave takiometer that does not cause connection failures in the electrical connection mechanism as described above and can therefore prevent problems with distance measurement data due to noise. It is an object of the present invention to provide a light wave takiometer which is incorporated into a horizontal shaft cylinder of a telescope section and is therefore easy to carry and operate without changing the shape and volume of a conventional light wave takiometer.

The present invention will be described below with reference to the embodiments shown in the drawings.

Horizontal shaft tubes 12 and 13 provided in a telescope section 11 of the theodolite are mounted on pillar sections 14 and 15 so as to be rotatable through 360 degrees. 14a and 15a are bearing parts. Inside the telescope section 11, there is a light wave distance meter 42 and a collimating optical system 4.
3 and 3 are arranged internally with coaxial collimation. Among the horizontal shaft cylinders 12 and 13, one horizontal shaft cylinder 1
A cylindrical insulating frame 16 with both ends open is fixed coaxially with the central axis (X-X') on the inner surface of the insulating ring 1.
8 are fitted and fixed alternately. Therefore, conductor ring 1
7 and the insulating ring 18 are formed to have the same outer diameter so that they can be fitted into the insulating frame 16, and the conductor ring 17
The slip ring groove 19 is formed by forming the inner diameter of the insulating ring 18 to be larger than the inner diameter of the insulating ring 18. The objective lens frame 20 fixed at one end to the advanced protractor mechanism support part 14b provided in one of the pillar parts 14 is attached to the ring holes 17' of both the rings 17 and 18.
18'. A flexible cable 23 as shown in FIGS. 3 and 4 is attached to the outer surface of the objective lens frame 20. flexible cable 23
A conductive wire 26 is formed using a metal foil such as copper in a thin acrylic resin sheet 25, and a connector pin 27 is attached to one end of the conductor wire 26, and the base of the brush 21 is attached to the other end. As shown in FIG.
1', and the winding portions 21', 21' are pressed against the inner surface of the ring hole 17' of the conductor ring 17 within the slip ring groove 19. A notch 24 is provided in a part of the insulating frame 16, and the conductor ring 17 and the optical distance meter 42 in the telescope section 11 are connected by a conducting wire 22. Further, the connector pins 27 of each brush 21, 21, 21, . . . are connected to a power source such as a battery placed on the pillar portions 14, 15, or a light wave distance meter operating source 44 such as a keyboard. 30 is an objective lens provided in the objective lens frame; 31 is a prism; 32 is an altitude scale plate attached to the end surface of the horizontal barrel 12 in the column 14; 33
is attached to the altitude scale plate support part 14b in the column part 14,
An altitude correction mechanism 34 attached to the altitude degree scale plate 32 is a prism of the altitude correction mechanism. In the embodiment described above, the scale image of the altitude/degree scale plate 32 is guided into the objective lens frame 20 by the prism 34 via the altitude correction mechanism 33, and then guided into the telescope section 11 via the objective lens 30 and the prism 31. At the same time, the horizontal degree scale image of the horizontal degree scale plate (not shown) is guided to the optical system 41 of the micro-microscope.
1 is guided to an optical system 41 of a micromicroscope.
The horizontal and altitude scales of the optical rangefinder configured for coaxial collimation are read by an eyepiece (not shown) in the telescope section 11 using a micro-degree scale (not shown).

In the above-described embodiment, the telescope section 11 rotates 360 degrees between the pillar sections 14 and 15 together with its horizontal shaft tubes 12 and 13, and therefore the insulating frame 16 fixed to the horizontal shaft tube 12 and the insulating frame 16 The conductor ring 17 and insulating ring 18 fixed to the frame are also attached to the horizontal shaft cylinder 12.
Both the conductor and insulating rings 1 rotate together.
The objective lens frame 20, which freely passes through the ring holes 17' and 18' of 7 and 18, is fixed to the altitude scale plate support part 14b in the column part 14, so that the horizontal axis cylinder 1
Therefore, the open end of the brush 21, whose base is attached to the flexible cable 23 fixed to the objective lens frame 20, slides into pressure contact with the inner surface of the ring hole 17' of the conductor ring 17. In the operated state, each conductor ring 17 is connected to an insulating ring 18.
rotates with. Since the flexible cable 23 is formed into a plate-shaped wire bundle as described above, the wire rods can be easily fixed and the wire rods will not come apart.
Wiring becomes easier, and it becomes clear at a glance which terminal is connected to which wire during work.

As described above, the present invention fixes an insulating frame within a horizontal shaft cylinder, and forms a slip ring groove by alternately fitting and fixing a conductor ring and an insulating ring into the frame, and connects one end to a column. The objective lens frame fixed to the conductive ring and the insulating ring are loosely fitted into the ring holes and attached to the outer periphery thereof, and the base is fixed to the other end of the flexible cable, one end of which is connected to the light wave distance meter operating source. A plurality of brushes are pressed into contact with the conductor ring in the slip ring groove, and the conductor ring and the light wave distance meter are connected, so that the light wave distance meter operation source and the light wave distance meter can be connected without causing a connection failure in the electrical system. This has the effect of preventing problems with distance measurement data caused by noise due to poor connection. In addition, the slip-ring mechanism of the present invention is incorporated into the horizontal axis cylinder of the telescope section, and therefore does not change the shape or increase the volume of the conventional light wave tachometer, making it easy to carry and operate the light wave tachometer. It has the effect of allowing you to obtain a tachometer.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a light wave takiometer showing one embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of an insulating frame portion, and Fig. 3 is a longitudinal cross-sectional view of an insulating frame portion, a conductor ring portion, and an insulating ring portion. Top view, Figure 4 is Figure 3 Y-
A sectional view of Y', and FIG. 5 is an enlarged vertical sectional view of a part of FIG. 3. 11... Telescope section, 12, 13... Horizontal shaft tube,
14, 15... Column portion, 16... Insulating frame, 17...
...Conductor ring, 18...Insulation ring, 17', 1
8'...Ring hole, 19...Slip ring groove,
20...Objective lens frame, 21...Brush, 2
1'... Winding portion, 22... Conducting wire, 23... Flexible cable, 24... Notch, 41... Optical system of micro microscope, 42... Light wave distance meter, 43
...Collimation optical system, 44...Light wave distance meter operation source.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A horizontal shaft tube provided in the telescope section of a theodolite is rotatably mounted on a pillar section, and a light wave distance meter and a collimating optical system are arranged coaxially within the telescope section. In a light wave takiometer, an insulating frame is fixed in a horizontal shaft cylinder, and an insulating frame is fixed in a horizontal shaft cylinder, and an insulating frame is fixed in a horizontal shaft cylinder, and an insulating frame is fixed in a horizontal shaft cylinder, and A slip ring groove is formed by alternately fitting and fixing a conductor ring and an insulating ring, and an objective lens frame with one end fixed to a column is loosely inserted into the ring holes of the conductor ring and insulating ring. A plurality of brushes attached to the outer periphery and having their bases fixed to the other end of a flexible cable whose one end is connected to a light wave distance meter operating source are pressed against the conductor ring in the slip ring groove, and the conductor ring and the light wave distance meter are connected to each other. A slip-ring mechanism for a light wave tachometer that electrically connects a light wave range meter and a light wave range meter operating source by connecting the two. 2. A slip-ring mechanism for a light wave tachometer according to claim 1 of the utility model registration, which uses only a power source as the light wave distance meter operating source. 3. A slip-ring mechanism for a light wave tachometer according to claim 1, which uses a power source and a keyboard as a light wave distance meter operating source.