JPH04110916U - Track reflective prism fixing device - Google Patents

Abstract

(57) [Summary] [Purpose] This is a simple device for fixing a reflecting prism used to measure distances on rails such as crane rails by reflecting light waves emitted from surveying instruments such as light wave distance meters. The reflecting prism and its supporting member can be quickly and accurately fixed to the rail. [Structure] Two stopper rolls are provided at both ends of the lower surface of the mount to which the supporting member 22 is fixed, so that the center of the line connecting their axes coincides with the vertical line of the reflecting prism 1, and the mount is Magnets 25a and 25b are provided at the front and rear ends.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a reflective prism fixing device for railway tracks.

0002

[Conventional technology]

The reflective prism for surveying is placed perpendicular to the survey point and is emitted from a surveying instrument such as a light wave distance meter. The distance is measured by reflecting the light waves. The locations of the survey points vary widely, depending on the block wall. When using a boundary stone placed directly below as a measuring point, or when measuring the span of a rail such as a crane rail. As in the case of fixed measurement points, the reflective prism support member, i.e. the reflective prism port, is not necessarily There are many places that are not suitable for setting up cameras, tripods, etc. Therefore, various measures are being taken. It is being considered.

0003 As an example, Japanese Utility Model Publication No. 2-49537 describes a reflecting prism fixing device for surveying. is proposed. Figure 4 shows this situation when the measurement point is located just below the outside corner of the wall. A perspective view showing the mounting position of the fixing device on the wall and the supporting state of the reflective prism pole. be.

0004 Here, the reflective prism 1 is placed flat on the lower end surface of the reflective prism pole 2 attached to the top. A stone protrusion 3 formed on a circular transparent plate is attached with screws. In the stone protrusion 3 above, A crosshair 4 is provided by engraving, grooving, or other means.

[0005] It is formed to coincide with the intersection (center) of the crosshairs 4 and the circular center of the stone protrusion 3, and The vertical center of the reflective prism 1, the vertical center of the reflective prism pole 2, and the front It is attached so that the center of the crosshair 4 of the marking stone protrusion 3 coincides with the center.

[0006] The surveying reflective prism 1 described above is fixed to a wall by a setter 5. setter 5 includes an upper piece 6a formed of a metal strip (or pipe) and a portion hanging from the upper piece 6a. A fixed support piece 6b that hangs directly down, and a fitting hole provided above in the upper piece 6a. Fits in a slidable manner and can be fixed at the initial position of the upper part 6a using the fixing screw 7. A clip is attached to the top surface of the upper part 6a of the mounting frame 6, which is made up of a movable support piece 6c. 8 is attached via a universal joint mechanism 9. 10 is a fence It is.

[0007] On the other hand, when measuring the span of a rail such as a crane rail, the rail itself is To serve as measurement points, mark the measurement points on the rail at predetermined intervals with a scriber. After centering, the worker manually holds the reflective prism at that position and takes measurements. This is the current situation.

[0008]

[Problem that the idea aims to solve]

However, when measuring the span of rails such as crane rails, high openings are required. Because of the work involved, there is a risk of falling, and the reflecting prism is said to be prone to shaking and becoming misaligned. There's a problem.

[0009] Here, the necessary preparations for measurement include fixing the reflective prism in an accurate position and leveling it. There is a strong desire to be able to adjust the equipment in a minimum amount of time. reflective prism support As a fixing device for the holding member, there is shown in the above-mentioned Japanese Utility Model Publication No. 2-49537. It is conceivable to attach it to the rail using a setter 5 like this, but regarding this There are the following problems.

0010 In order to fix the setter 5 to the rail, it is necessary to screw it each time at a high place. do not have. Also, the rail width is not necessarily uniform, and it is necessary to align the center each time. It takes time.

[0011] This invention was developed in view of the above circumstances, and is designed to improve the spacing of rails such as crane rails. It is intended for measurement of reflection prisms and their supporting members using a simple device. An object of the present invention is to provide a reflecting prism fixing device that can be accurately fixed to a prism.

0012

[Means to solve the problem]

In order to achieve the above purpose, the present invention fixes a reflective prism on the top and has an adjustment mechanism. It consists of a reflective prism support member having a reflection prism support member and a pedestal for fixing the support member, and the above-mentioned At both ends of the bottom of the stand, the center of the line connecting the axes of the two stopper rolls is A stopper roll is installed so that it coincides with the vertical line of the projection prism, and the A reflective prism fixing device for rails featuring magnets installed at the front and rear ends of the mount. It is assumed that

[0013]

[Effect]

Since the present invention has the above configuration, the track reflection prism fixing device of the present invention can be attached to the track. When fixing at a measurement point, place the rail reflection prism fixing device at the measurement point of the rail. After that, rotate the pedestal and install the Just touch the two stopper rolls and align the axes of the two stopper rolls. The center of the line connecting the spaces is aligned with the vertical line of the reflecting prism, so It is possible to accurately align the center to the measuring point of the rail.

[0014] Next, a switch activates the magnets on both sides of the pedestal, Fix the track reflective prism fixing device. Then, adjust the adjustment mechanism while looking at the spirit level. Operate and adjust the level.

[0015]

【Example】

Embodiments of the present invention will be described with reference to the drawings. Figure 1 is a plan view showing an embodiment of the present invention. , FIG. 2 is a front view thereof, and FIG. 3 is a diagram showing main parts of the reflecting prism fixing device.

[0016] The prism fixing device 20 of the present invention fixes the reflecting prism 1 on the upper part and has an adjustment mechanism. A reflecting prism support member 22 and a pedestal 23 for fixing the support member 22 are provided. , stopper rolls 24a and 24b are provided at the side edges of the lower surface of the pedestal 23, and Magnets 25a and 25b are provided in the section. Four knobs as adjustment mechanism Mi21 is installed. 27 is a knob for attaching and detaching the reflecting prism.

[0017] Here, a dashed-dotted line L1 connecting the axes of the two stopper rolls 24a and 24b It is necessary that the center point O of the reflection prism 1 coincides with the vertical line L4 of the reflection prism 1. It is. As a result, the pedestal 23 is rotated, and the pedestal 23 is placed on both sides of the rail A. The two stopper rolls 24a and 24b provided at the side edges of the lower surface of No. 3 are brought into contact with each other. The center can be accurately aligned with the measuring point of rail A. Stoppero When the wheels 24a and 24b are brought into contact, the position of the one-dot chain line L1 is the rotation indicated by the dotted line. Place the pedestal so that the position of the dashed line L2 of the pedestal 23 before the turn becomes the position of the dashed dotted line L1. Turn around 23. The dashed-dotted line L3 is a line indicating that the rail measurement point is on this line. It is.

[0018] Then, while looking at the level 26, adjust the level by operating the four adjustment knobs 21. let

[0019] The fixing device 20 of the present invention as shown in FIGS. 1, 2, and 3 is attached to the crane rail spa We will explain the case where it is used for measurement of energy. Supports the reflecting prism 1 and its supporting member 22. Place the mount 23 holding the rail at the measurement point, rotate the mount 23, and measure the rail. Stopper rolls 23a and 2 are provided on both sides at the lower end and rear end of the pedestal 23. Just by touching 3b, you can align the center to the measurement point of the rail.

[0020] Next, a switch (not shown) is activated to attach the magnets provided on both sides of the pedestal 23. 25, 25b to fix the reflective prism fixing device 20. Then water Adjust the level by operating the four adjustment knobs 21 while looking at the leveling device 26. More than The necessary preparations for crane rail span measurement can be made easily, quickly and accurately. come.

[0021] Next, the span of the crane rail is accurately measured using a light wave distance meter. After that, the magnet is released and the worker places it on the crane rail at the next measurement point. It will be moved.

[0022]

[Effect of the idea]

As described above, the present invention has a simple structure that allows it to be easily fixed to rails at high places. Because it is possible to accurately align the center, measurements such as span can be made safely, accurately, and quickly. Ru.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a front view of an embodiment of the present invention.

FIG. 3 is a side view of a main part of an embodiment of the present invention.

FIG. 4 is a diagram showing an example of a conventional reflection prism fixing device.

[Explanation of symbols]

20 Track reflective prism fixing device 21 Adjustment mechanism 22 Prism support member 23 Frame 24a, 24b stopper roll 25a, 25b magnet 26 Level

Claims (1)

[Scope of utility model registration request] 1. A reflecting prism support member having a reflecting prism fixed thereon and an adjustment mechanism, and a pedestal for fixing the supporting member, and axes of two stopper rolls are arranged at both ends of the lower surface of the pedestal. A reflective prism fixing device for a rail, characterized in that a stopper roll is provided so that the center of a line connecting the prisms coincides with a vertical line of the reflective prism, and magnets are provided at the front and rear ends of the mount.