JP4439747B2 - Cross line height difference display device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a cross-line height difference display device that displays a height difference between two lines at a point where lines cross over a main line of a trolley line.
[0002]
[Prior art]
Conventionally, the height difference between a main line and a crossover line is measured by individually measuring and comparing each with a trolley line height measuring device.
[0003]
[Problems to be solved by the invention]
In the conventional measurement described above, a large-scale measuring device must be prepared, and there is a problem that the height difference cannot be easily and quickly confirmed.
Therefore, an object of the present invention is to provide a crossing line height difference display device for simply and quickly confirming a height difference between a main line and a crossing line.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, in the first invention, in the cross-line height difference display device that displays the height difference between the trolley main line M and the cross-line S crossing the main line M, measurement is performed with an interval between them. The level 12 is fixed to the center of the base 1 that extends from the main line M to the cross line S, and hanger ears 2 and 8 are attached to both ends of the base 1. The level 12 can move the bubble A in the direction of the distance between the main line M and the cross line S, and is provided with a scale 12b along the moving range. The hanger ears 2 and 8 respectively hold the main line M and the cross line S, and at least one 2 is provided so that the height can be adjusted. Then, the height difference is confirmed from the inclination of the base 1 displayed on the scale 12b of the bubble position A of the level 12 in the state where the main line M and the cross line S are respectively held.
In the second aspect of the invention, at least one of the hanger ears 2 is attached to the base 1 so that the position of the hanger ears 2 can be adjusted so that the distance between the hanger ears 8 can be changed.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
1 and 2, the crossing line height difference display device includes a base 1 that extends from a main line M to a crossing line S to be measured. The base 1 is made of aluminum, and is composed of a long channel material having a wide rectangular cross section with one long side open.
[0006]
A hanger ear 2 is attached to one end of the base 1 (left end in the figure). A portion of the base 1 to which the hanger ear 2 is attached is provided with a long hole 1a for changing the attachment position in the longitudinal direction. As shown in FIG. 3, the hanger ear 2 includes a hanger bar 2a on which a screw is formed, a pair of opposed ear pieces 2b attached to the lower end portion thereof, and a bolt 2c for fastening the ear piece 2b. A lock nut 4 is screwed onto the hanger bar 2a with a collar 5 interposed on the base 1. A reinforcing member 3 is fitted inside the base 1. The reinforcing member 3 has a substantially rectangular shape, has a long hole 3a corresponding to the long hole 1a of the base 1, and is fixed to the base 1 with bolts 7 at both ends in the longitudinal direction. The flange 6 with a tap is screwed to the hanger bar 2a, and the height position of the hanger ear 2 can be adjusted by moving the hanger bar 2a in the axial direction by the rotation.
[0007]
A hanger ear 8 for suspending the trolley wire is attached to the other end of the base 1 (right end in FIG. 1). The hanger ear 8 can swing in a direction transverse to the overhead line direction. An attachment block 9 is fitted to the tip of the base 1 to which the hanger ear 8 is attached. A fixing piece 10 is fixed to the mounting block 9 so as to protrude laterally and to which the hanger ear 8 is fixed. The fixed piece 10 has a flexibility that can swing up and down with respect to the mounting block 9. The hanger ear 8 is fixed to the fixed piece 10 with a lock nut 11. The hanger ear 8 includes a hanger bar 8a in which a screw is formed, a pair of opposed ear pieces 8b attached to the lower end portion thereof, and a bolt 8c for fastening the ear piece 8b.
[0008]
A level 12 is fixed to the central lower surface of the base 1. As shown in FIG. 4, the level 12 has a bubble A in a water reservoir 12 a extending in the longitudinal direction of the base 1, and the bubble A moves according to the inclination of the bubble A and is inclined according to the position of the bubble A. Can be confirmed. A scale 12b indicating the position of the bubble A is engraved on the surface of the water reservoir 12a. The scale 12b is set to 0 ° in the center and 1 °, 2 °, 3 °, etc., with a predetermined length on the left and right, with the base 1 in a horizontal position. It is about 15mm, 30mm, 45mm ...
[0009]
In the crossing line height difference display device according to the present embodiment, the display is attached between the main line M and the crossing line S intersecting therewith. The hanger ears 2 and 8 of the crossing line height difference display device are fixed in advance to a reference position where the main line M and the crossing line S held by the hanger ears 2 and 8 are horizontal. The hanger ears 2 and 8 hold the ear pieces 2b and 8b in the main line M and the cross line S, respectively, and tighten the bolts 8c to firmly hold the hanger ears 2 and 8. At this time, the position of the hanger ear 2 is adjusted within the range of the long hole 1 a according to the distance between the main line M and the crossing line S, the distance from the hanger ear 8 is adjusted, and the lock nut 4 is fixed. When the crossing line height difference display device is attached between the main line M and the crossing line S, the inclination displayed on the scale 12b of the bubble position of the level 12 is read, and the height difference calculated in advance can be confirmed from this inclination. .
[0010]
In addition to the above-described measurement of the height difference, when measuring the height difference of another location on the basis of the height difference of a certain location, the flange 6 with the tap is rotated by the reference height difference and the hanger ear 2 is rotated. The position of the bubble A of the level 12 is returned to 0 °, and in this state, a line height difference display device is attached between the main line M and the cross line S at another location. And the inclination displayed on the scale 12b of the bubble position of the level 12 can be read, and the height fluctuation with respect to the reference height difference can be confirmed from this inclination.
[0011]
【The invention's effect】
As described above, the present invention has a simple structure and is easy to install, and can easily and quickly confirm the height difference between the crossover line and the main line.
Moreover, it has the effect that it can attach corresponding to the fluctuation | variation of the space | interval of a cross line and a main line.
[Brief description of the drawings]
FIG. 1 is a front view of a cross line height difference display device according to the present invention.
FIG. 2 is a plan view of a crossing line height difference display device.
FIG. 3 is a plan view of a hanger with a height adjusting mechanism.
FIG. 4 is a plan view of a spirit level.
[Explanation of symbols]
1 base 1a long hole 2 hanger ear 3a long hole 4 lock nut 6 tapped flange 8 hanger ear 12 level 12b scale A bubble M main line S crossover line

Claims (2)

In the cross line height difference display device that displays the height difference between the trolley line main line and the cross line crossing this,
A base that extends from the main line to the crossing line at a distance from each other,
A level that is fixed at the center of the base and has a scale along the moving range of the bubble in the direction of the distance between the main line and the crossing line;
It is fixed to both ends of the base, and grips the main line and the crossover line, and at least one of the hanger ears is adjustable in height,
A cross-line height difference display device, wherein a height difference is confirmed from an inclination displayed by a scale of a bubble position of a level in a state where the main line and the cross line are respectively gripped. The crossing line height difference display device according to claim 1, wherein at least one of the hanger ears can be attached by changing an interval between the hanger ears.

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