JPH0247441Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a road surface detection device that detects large waves generated on a road surface and small waveforms therein.

On vehicle routes, corrugations occur on the plane due to ground movement and wheel wear. Although it cannot be denied that variations due to such fluctuations and wear are the cause of accidents such as derailment of vehicles, it is difficult to detect such variations, and it requires a lot of effort to find them.

The present invention deals with this problem by placing reference plates at the front and rear of the main body, and furthermore, by installing a detection plate in the center and a detection ring in the window hole bored in the center of the detection plate. The large wave is recorded with a pen through a magnifying mechanism by vertical movement of the detection plate using the front and rear reference plates as a reference.
Furthermore, small waves within this large wave are recorded with a pen using a magnifying mechanism by vertical movement of a detection wheel loosely fitted into the window hole of the detection plate, making it easy to record variations in waveforms while moving along the route. It is intended for detection.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the route plane detection device according to the present invention will be described in detail below with reference to the accompanying drawings.

Reference numeral 1 denotes a main body consisting of a pair of frames a and a' placed at an appropriate distance on the left and right, and reference plates 2 and 3 are provided at the front and rear of this main body 1. Reference plates 2, 3
are attached to shafts 4 and 5 horizontally suspended between frames a and a', respectively,
It is supported through holes 6 provided in the shaft supports 2', 3' from the center of each of the reference plates 2, 3.

The hole 6 is shaped like a drum and is fitted so that it can swing left and right to a certain extent, and the shaft supports 2',
3' is designed to prevent left and right movement by regulating rings 7 and 8 attached to the shafts 4 and 5.

In addition, elastic support arms 9, 9' that pivotally support guide rollers 10, 10' that prevent the main body 1 from moving left and right are attached to the frames a, a'. - It is guided by applying it to the left and right sides of the R.

A detection plate 11 is arranged in the center of the main body 1.

The detection plate 11 has a window hole 12 in the center, a support piece 13 in the center, and support pieces 14 and 15 on the front and rear sides.

The support piece 13 is supported by a shaft 13' at the end of a first oscillator 17 which is pivoted on a fixed shaft 16 horizontally suspended between the frames a and a', and is detected around the fixed shaft 16. The plate 11 can be moved up and down.

A fixed bearing 18 fixed to the fixed shaft 16 is provided inside the first oscillating body 17, and the second oscillating body 19 is pivotally supported at an intermediate portion by a pin 20.

A detection ring 21 that loosely fits into a window hole 12 provided in the detection plate 11 is pivotally supported at an end of the second rocking body 19 .

In addition, support pieces 14 and 1 provided before and after the detection plate 11
5 is a pair of parallel support arms 24, 24' whose ends are pivotally supported by bearings 22, 23 provided on the lower side of one frame a' of the main body 1, and the tips of which are pivotally supported by a pin 25. , the detection plate 11 is kept parallel to the frames a and a'.

The other ends of the first and second rocking bodies 17 and 19 are
A fixed support plate 2 with an L-shaped cross section installed horizontally on the upper part of the main body 1
Two transmission plates 2 pivoted near the ends on the end faces of 6.
The ends of the transmission plates 27 and 28 are connected with pins via the connecting pieces 40 and 41, and the transmission plates 27 and 28 are further provided with pivot points p and 28, respectively.
Pins 29 and 30 are provided upright at positions slightly offset from p'. Further, in the upper part of the main body 1, recording pieces 31 and 32 of an enlarging mechanism whose intermediate portions are pivoted on the support plate 26 are installed horizontally, and recording pens 33 and 34 are installed at the tips of the recording pieces 31 and 32. It is provided removably and the other end is brought into contact with the pins 29 and 30 by means of a spring or the like, respectively.

Further, a table 35 is installed horizontally in the main body 1, and the recording pens 33 and 34 perform separate recordings on a recording paper 36 running on the table 35.

Recording paper 36 is wound around reels 37 and 38.

One side of the reel is a drive wheel 39 facing the rail R.
related to winding with the drive of.

The present invention has the above-mentioned configuration, and the waveform generated on the route is determined by the vertical movement of the central detection plate 11 with reference to the front and rear reference plates 2 and 3. The first rocking body 17 is rocked around the fixed shaft 16. This swinging is caused by the recording paper 3 running on the table 35 via the connecting piece 40 and the transmission plate 27.
Recording pen 3 provided on the recording piece 31 of the enlargement mechanism on 6
3 is used for recording. In order to detect a small waveform, similarly, using the reference plates 2 and 3 as a reference, the detection wheel 21 loosely fitted into the window hole 12 at the center of the detection plate 11 is slightly moved up and down. It swings by the pin 20, and this swing is transferred to the connecting piece 41.
The information is transmitted to the recording piece 32 of the enlarging mechanism via the transmission plate 28 and recorded on the recording paper 36 by the recording pen 34.

In this way, the present invention detects and records large waves by vertically moving the central detection plate 11 with reference to the reference plates 2 and 3 placed at the front and rear of the main body 1. Small waveforms in the waveform are detected by a detection wheel 21 that moves up and down in a window hole bored in the middle of the detection plate 11 using the front and rear reference plates 2 and 3 as a reference, and are recorded as a line diagram on a recording paper 36. This system has the effect of easily detecting abnormalities in large and small waveform lines, ensuring complete track maintenance without wasting time and effort, and preventing accidents.

[Brief explanation of the drawing]

The drawings show an embodiment of the road surface waveform detection device according to the present invention, in which Fig. 1 is a partially cutaway side view, Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is a partially cutaway side view. 2
Figure 4 is a plan view of Figure 2, Figure 5 is an enlarged front view showing the relationship between the reference plate and the rail, Figure 6 is a perspective view of the detection plate. , FIG. 7 is a plan view of the recording paper. 1...Main body, 2, 3...Reference plate, 2', 3'...
Pivot support body, 4, 5... shaft, 6... hole, 7, 8... regulating ring, 9, 9'... support arm, 10, 10'... guide roller, 11... detection plate, 12... Window hole, 13...
...Support piece, 13'...shaft, 14,15...branch piece,
16...Fixed shaft, 17...First rocking body, 18...
Fixed bearing, 19...second rocking body, 20...pin,
21...Detection wheel, 22,23...Bearing, 34,2
4'... Support arm, 25... Pin, 26... Fixed support plate, 27, 28... Transmission plate, 29, 30... Connecting piece, 31, 32... Recording piece, 33, 34... Recording pen , 35...table, 36...recording paper, 3
7, 38... Reel, 39... Drive wheel, 40, 4
1... Connecting piece, a, a'... Frame p, p'... Axis fulcrum, R... Rail.

Claims (1)

[Scope of utility model registration request] The main body has a reference plate pivotally supported on a fixed shaft in the front and back, and a detection plate in the center.
A detection ring is loosely fitted into the central window hole on the longitudinal center line, and the detection plate is provided with a support piece in the center, and this support piece has a second ring that is freely horizontally and vertically supported within the main body on an intermediate fixed shaft. The detection wheel is pivotally supported at one end of a second rocking body, and the detection wheel is pivotally supported at one end of a second rocking body, which is pivotally supported vertically by a fixed bearing fixed to a fixed shaft that pivotally supports the first rocking body. The other ends of the first and second oscillating bodies are connected via connecting pieces to the other ends of a pair of oscillating transmission plates, each of which is pivotally supported near one end on a fixed support plate provided at the upper part of the main body. Furthermore, each transmission plate is provided with a pin offset from the shaft support, and this pin is brought into contact with one end of the recording piece of the enlarging mechanism whose intermediate portion is pivotally supported on the fixed support plate. A recording pen is attached to the other end of the piece, and the recording pen records on recording paper on a table provided in the main body.