JPH0434415Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a reflector support device for a light wave distance meter, and more specifically, the invention is a reflector support device for a light wave distance meter, and more specifically, the invention is a reflector support device for a light wave distance meter. The present invention relates to a reflector support device for a light wave distance meter that can perform measurements.

(Prior art) A light wave distance meter emits a modulated light wave toward a reflecting mirror placed at a distance measurement point, and detects the phase difference between the modulated light wave reflected by the reflecting mirror and the reference modulated light wave. Measure the distance. Conventionally, this light wave distance meter
It was often used to accurately measure distances of 2 to 3 km or more.

However, in recent years, in addition to the advantages of high distance measurement accuracy and short distance measurement time, light wave distance meters have become smaller and lighter, allowing them to be mounted on angle measurement devices such as osedolites. The range of distance measured by light wave range meters has been expanded, and now light wave range meters can be used to cover short distances of about 50 to 100 meters. It is starting to be used. Along with this, the environment in which distance measurement is performed using a light wave distance meter is now not limited to mountains and fields with conventional 1st or 3rd order triangulation points, but also includes urban areas where the distance point is the wall of a building, etc. As a result, it has become difficult to install a reflector device in some cases. That is, the conventional reflecting mirror device is configured to be mounted on a tripod, and if there is an obstacle near the distance measurement point, it is impossible to install the reflecting mirror device. Therefore, conventionally, when there is an obstacle near the measured distance point, a reflector device is installed at a temporary position away from the measured distance point, the distance is measured with a light wave distance meter to the temporary position, and then the distance measured from the temporary position is measured. The distance to the distance was measured with a tape measure, and these measured values were added to obtain a predetermined distance.

(Purpose of the present invention) The present invention was made in view of the above-mentioned problems of the conventional reflector support device for a light wave distance meter.
To provide a reflector support device for a light wave distance meter that can be easily and reliably installed on a surface such as a wall or floor, and can also easily maintain the optical position even if the reflector is directed in any direction. With the goal.

(Structure of the device) The present invention, which achieves the above-mentioned object, relates to a reflector support device for a light wave rangefinder, and its structural features include a spherical seat receiving member having a seating portion for attaching the reflector; , a positioning plate with a cross scale attached to the ball seat receiving member, the center of swing of the ball seat receiving member and the center of intersection of the cross scale are aligned, and this matching point is aligned with the center of the cross scale of the reflecting mirror. This is done so that the optical axis passes through it.

(Example) Hereinafter, an example of the present invention will be demonstrated based on the drawings.

As shown in FIGS. 1 and 2, a transparent alignment member or square substrate 2 is provided with a cross scale 4 and a circular hole 6 whose center coincides with the center of the cross scale 4. As shown in FIGS. on the other hand,
The outer member 8 of the spherical seat, which is approximately square with rounded corners, has a protrusion 10 on the lower surface that fits into the circular hole 6, and a slope 12 is formed at the center of the four sides, where an extension of the cross scale 4 is formed. An index 14 corresponding to the section is provided. The ball seat outer member 8 also has a downward sliding ball inner surface 1 in the center.
6, and furthermore, a swing hole 18 is provided in the center thereof.

A recess 24 is formed in the center of the lower surface of the outer member 8 of the ball seat, into which a disc 22 for supporting the inner member 20 of the ball seat is fitted. A spherical receiving member is formed by the spherical seat outer member 8, the spherical seat inner member 20, and a sliding spherical member 32, which will be described later. The disc 22 is fixed to the lower surface of the outer member 8 of the spherical seat by screws 26. A ball seat inner member 20 having an upward sliding ball outer surface 30 is disposed at the center of the upper surface of the disc 22 .

A sliding spherical member 32 is disposed between the inner surface 16 of the sliding ball and the outer surface 30 of the sliding ball so as to be able to slide on the surfaces 16 and 30 with a certain sliding resistance. Sliding spherical member 3
2 has a seating portion 44 in the center of its outer surface that is screwed into the mounting screw 42 of the reflector housing 40. The reflecting mirror 50 is arranged so that its optical axis 52 passes through the center of the spherical surface of the sliding spherical member 32, that is, the center of the cross scale 4.

In the above configuration, when measuring the distance or angle to a predetermined position on a surface such as a wall, floor, ceiling, etc. using a light wave distance meter, the center of the cross scale 4 should be aligned with the measurement point using the cross scale 4 as a reference. let continue,
While keeping the substrate 2 stationary, the sliding spherical member 32, that is, the reflecting mirror housing 40, is swung to direct the reflecting mirror 50 toward the optical distance meter.

Another embodiment of the present invention is as shown in FIG.
The substrate 2 is provided with a collimation pattern consisting of a transparent part 2a and a black opaque part 2b divided by a boundary line extending radially outward from the intersection of the cross scale 4 or the outer end of the index 14. In this example,
It has the advantage of easy collimation when the measurement distance is very long.

In yet another embodiment of the present invention, a reflecting mirror is arranged so that its virtual reflecting surface coincides with the intersection of the cross scale 4. This embodiment has the advantage that the so-called prism constant of the reflecting mirror is zero.

(Effect of the invention) As described above, the present invention is configured so that the intersection of the cross scales of the positioning member and the center of the spherical seating surface coincide, so it is easy to position the reflector support device at any position on the surface. , it can be positioned reliably, and furthermore, it has the effect of allowing the reflecting mirror to be easily directed in any direction while being substantially held in this position.

Since the center of the scale and the center of the spherical seat surface coincide, the reflector support device can be placed at any position on the surface, and the reflector can be moved in any direction while easily maintaining this arrangement. It has the advantage of being able to direct.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a reflecting mirror support device according to an embodiment of the present invention, FIG. 2 is a plan view of the support device shown in FIG. 1, and FIG. 3 is a plan view showing another embodiment of the present invention. be. 2... Substrate, 4... Cross scale, 6... Circular hole, 8... Ball seat outer material, 20... Ball seat inner material, 3
2...Sliding spherical member, 44...Seating portion, 50...
Reflector.

Claims (1)

[Claims for Utility Model Registration] (1) The ball seat comprises a ball seat receiving member having a seating portion for attaching a reflecting mirror, and a positioning member with a cross scale attached to the ball seat receiving member; A reflecting mirror support device for a light wave distance meter, characterized in that the center of swing of the receiving member and the intersection point of the cross scale are made to coincide with each other, and the optical axis of the reflecting mirror passes through this coincident point. (2) The reflecting mirror support device according to claim 1, wherein the virtual reflecting surface of the reflecting mirror coincides with the center of swing of the ball seat receiving member.