JPS6225685Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a jig device for adjusting the plummet telescope hair in a transit, and more specifically, it is used to adjust the misalignment between the hair installed in the plummet telescope installed in the transit and the center line of the machine body of the transit. The present invention relates to an adjustment jig device as an additional device used for inspection and adjustment.

Generally, when conducting survey work using a transit, it is first necessary to perform centripetal work to align the survey point set on the ground with the center of the machine. The current TRANSIT is equipped with a centripetal telescope. Assuming that the transit operates horizontally, the plummet telescope is used to aim vertically downward, and the intersection circle of the hair lines is aligned with the above measurement point. If the centers of the circles do not match, accurate plummeting work will not be possible and errors will occur in the survey results. Therefore, always check the misalignment between the center of the machine and the center of the circles on the plummet telescope hair. Careful management is required to adjust the situation accordingly. For this reason, in the past, the transit was set on a tripod in the same way as when conducting survey work, and the center position of the hair was determined when looking through the plummet telescope, and when the transit was rotated sequentially by 90 degrees. The positions are written one after another on a piece of paper or board fixed on the ground, and after the four points have been marked, these points are connected in a cross shape, and the adjustment is made so that the center of the hair matches the intersection. This process is repeated until the center of the hair does not move even when rotated. In addition, even if an adjustment table equipped with a collimator for centripetal adjustment is installed instead of the writing means required on the ground,
Similar to the above, adjustments are made while rotating the machine on the adjustment table, but with these machines, it is necessary to look through the centripetal telescope each time the machine rotates, so it is difficult to adjust one machine. In addition, the adjuster has to go around the machine 4 to 5 times, making the operation cumbersome and requiring a long adjustment time. The advent of an adjustment jig device for the plummet telescope hair that can be adjusted to the desired angle has been strongly desired in this type of surveying equipment industry.

The present invention was devised in view of the above-mentioned circumstances and to eliminate these shortcomings and meet the demands of this type of surveying equipment industry. The transit placed through the leveling table is placed through an adjustment jig device, and the device is equipped with a rotatable adjustment frame and a fixing device that extends the optical axis of the centripetal telescope of the transit. It is composed of a centering rod, a centripetal collimator built into the centering rod, and a connecting means for supporting the centering rod horizontally movably with respect to the adjustment frame, and the rotation of the transit is adjusted relative to the adjustment frame. By converting to body rotation, the adjuster can easily aim at a fixed working position, and the efficiency of adjustment work can be significantly improved. This is what we intend to provide.

To explain the configuration of the present invention with reference to an embodiment shown in the drawings, 1 is a transit in which a telescope 3, a vertical protractor 4, etc. are respectively installed on the top of pillars 2, 2 which are formed in an upright manner facing each other. A leveling table part 6 equipped with a leveling screw 5 is formed at the lower part of the transit 1, and a lower plate 8 equipped with a horizontal protractor plate 7 is rotatable on the leveling table part 6. It is freely mounted on a shaft and can be moved up and down and horizontally within the operating range of the leveling screw 5. An upper plate 9 on which the pillars 2, 2 are erected is located close to the upper surface of the lower plate 8.
is loosely fitted in the shaft mounting part, and the above-mentioned transit 1 has a fixing screw 10 on the leveling table part 6.
It can be rotated and fixed freely through.

Reference numeral 11 denotes an eyepiece of a centripetal telescope installed in the transit 1. The optical axis of the focusing lens 12 attached to the eyepiece 11 includes a cross hairline and its adjustment pin. A rectangular prism (not shown) is arranged to be perpendicular to the vertical central axis, and is fixed to the upper plate 9 at the intersection thereof.
The structure described above is the main body of the known transit 1, which is used by being placed on the top of a tripod (not shown) via the leveling table 6. Next, A shown in the lower half of FIG. 1 is an adjustment jig device of the present invention, which is composed of an adjustment frame, a centering rod, and a centripetal collimator installed in the centering rod, It has a base.

The various parts will be explained below with reference to FIG. A bottom plate 16 facing the top plate 15 is connected and fixed by a support 17. Attachment holes 1 are provided on the bottom surface of the bottom plate 16.
A support shaft 18 is provided protruding from the same axis C as 4. 1
Reference numeral 9 denotes a mounting base with a stable structure provided for adjustment work. A base 20 is mounted on the mounting base, and a support shaft 18 is fitted into a fitting hole 21 provided at the center of the mounting base to rotate the frame 13. It is freely pivoted. The mount 19 may be a normal tripod.

Next, in FIGS. 1 and 6, reference numeral 22 denotes a fixed center rod for fixing the transit 1 on the top plate 15 of the adjustment frame 13, and a male thread screwed onto the upper end of the fixed center rod 22. The part 23 is adapted to be screwed into a mounting screw part 24 provided at the axis of the leveling table part 6, and the transit 1 is placed on the adjustment frame 13 facing the center of the mounting hole 14, The above-mentioned centering rod 22 is attached to the mounting thread part 24, and the connecting means 2 disposed on the lower surface of the top plate 15
The transit 1 is fixed by screwing together with the screw 5 interposed therebetween. Connecting means 2
5 is configured as a moving ring 25 in this embodiment, and a fixed center rod 22 is installed between both legs formed in a roughly U-shape.
is inserted. A centripetal collimator 28 consisting of a scale glass 26 engraved with a crosshair for collimating with a centripetal telescope and a convex lens system 27 is installed in the lower end of the centering rod 22, and is connected to the top surface of the base 20. are separated.

29 is a mounting hole of the base 20 to the mounting base 19; 30
is a mounting bolt, 31 is a mounting hole provided at the base end of the moving ring 25, 32 is a mounting bolt to the mounting hole 33 on the lower surface of the top plate 15, and the centering rod 22 is connected to the U leg of the moving ring 25. It is movably supported by its rocking motion.

In the above configuration, now transit 1
To adjust the plummet telescope hair, first install the base 20 on the mount 19, fit the support shaft 18 on the lower surface of the adjustment frame 13 into the fitting hole 21, and then attach the frame. The body 13 is rotatably supported. Next, the transit 1 is placed on the top plate 15 of the adjustment frame 13 with the mounting screw part 24 of the leveling table part 6 facing the center of the mounting hole 14, and the center is fixed with the moving ring 25 interposed. Attach the upper male thread part 23 of the rod 22 and attach the thread part 24.
When screwed together, the centering rod 22 is securely fixed, and at the same time, the adjustment jig device A places the transit 1 on the mounting base 19, completing the installation of the transit 1 from the outside. By holding it in place and loosening the fixing screw 10, the adjustment frame 13 and the leveling table 6 can be smoothly rotated by hand in relation to the transit 1, and the central axis of the machine of the transit 1 can be rotated by hand. is extended to the centering rod 22 and transferred onto the crosshairs of the scale glass 26 of the centripetal collimator 28 installed in the lower part of the centering rod 22. At this time, the intersection of the crosshairs visible when looking through the eyepiece 11 of the centripetal telescope is the same relative position as when looking through the eyepiece 11 at the center position of the transit 1 marked on the ground while rotating the transit 1. It becomes a rotational collimation state.

Therefore, the hair of the centripetal telescope is set to transit 1.
In order to align the center with the center, first adjust the leveling screw 5 by horizontal fine movement while looking into the eyepiece 11,
Correspondingly, the centering rod 22 is moved within its U leg by the pivoting of the moving ring 25 to follow it, and the crosshair intersection of the centripetal collimator 28 is aligned with the center of the circle on the plummet telescope hair. Next, loosen the fixing screw 10, rotate the adjustment frame 13 approximately 180 degrees while holding the main body of the transit 1 with one hand to prevent it from rotating, look into the eyepiece 11, and locate the center of the centripetal telescope with the circle mark on the hair. If the crosshairs of the centripetal collimator 28 remain aligned, the hair of the centripetal telescope is aligned with the center of the transit 1, and there is no need for adjustment. However, if the center of the hair circle moves from the intersection of the cross lines, half of the amount of movement is adjusted by the leveling screw 5.
Then, repeat this operation until the crosshair appears to rotate at a constant position from the center of the hair circle no matter how much you rotate the adjustment frame 13.
By moving the hair of the centripetal telescope using the adjustment pin and aligning the center of the circle with the intersection of the crosshairs, the deviation of the hair can be reliably adjusted. In this way, the adjuster can easily adjust the hair of the centripetal telescope while sitting in a sitting position without requiring any troublesome operations. It goes without saying that the theodolite and the like can also be adjusted in exactly the same way.

An adjustment frame is rotatably supported on a base on a support stand and has a top plate and a bottom plate connected by a support, and the adjustment frame is screwed onto the axis of the leveling table of the transit. a centering rod movably supported by a centering rod for extending a mechanical central axis of the transit into the adjustment frame;
A centripetal collimator is installed in the lower part of the centering rod and has a crosshair attached to the centripetal telescope attached to the transit, and a moving ring is a linking means for supporting the centering rod with respect to the adjustment frame. The hair adjustment work of the centripetal telescope is performed by converting the rotation of the transit on the support stand to the relative rotation of the adjustment frame. If you screw the rod together and fix it on the adjustment frame,
The centripetal collimator is attached to the adjustment frame, and by simply rotating the adjustment frame while the transit is stopped, the center of the transit marked on the ground can be aligned with the centripetal collimator while rotating the machine. Since it is possible to achieve the same condition as when sighting with This is an extremely useful tool that allows you to easily adjust the hair of a plummet telescope while sitting in a sitting position without having to prepare a separate adjustment table equipped with a collimator, which significantly improves the efficiency of adjustment work. This has practical effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the adjustment jig device for the centripetal telescope hair in a transit according to the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is a front view of the adjustment frame, and FIG. 3 is a front view of the adjustment frame. 4 is a front view of the base, FIG. 5 is a plan view of the same, and FIG. 6 is an exploded explanatory view of essential parts. In the figure, 1 is the transit, 6 is the leveling table, 13
is an adjustment frame body, 14 is a mounting hole, 15 is a top plate, 16 is a bottom plate, 17 is a column, 20 is a base, 22 is a fixed center rod,
25 is a connecting means, a moving ring, and 28 is a centripetal collimator.

Claims (1)

[Scope of utility model registration request] In a jig device for adjusting the hair of a transit equipped with a centripetal telescope rotatably mounted on the leveling table, the jig device is rotatably supported on the support table and has a top plate and a bottom plate. An adjustment frame connected by a support and on which the transit is placed; a centering rod attached to the axis of the leveling table of the transit and extending the machine center axis of the transit into the adjustment frame; A centripetal collimator that is installed in the lower part of the centering rod and has a crosshair attached to it that is collimated with a centripetal telescope attached to the transit, and a linking means that supports the centering rod so that it can move horizontally relative to the adjustment frame. A hair adjustment jig device for a centripetal telescope in a transit, characterized by comprising: