JP4273854B2 - Obstacle limit measuring device mount - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a frame for an obstacle limit measuring apparatus that is convenient for handling and is used for measuring a distance at which a utility pole, a building, or the like constructed facing a railroad track becomes a limit at the time of traveling on a train.
[0002]
[Prior art]
The conventional obstacle limit measuring device is mounted on a tripod stand that stands near the track. When performing the obstacle limit measurement work, the first bar is placed between the rails of the track. On the other hand, the second sticking bar is set so as to be along a line connecting the position hitting the center of the gauge of the first sticking bar and the obstacle near the track. Then, a laser beam for measurement is applied to the reflectors attached in advance to the first and second rods located on the left and right rails, and the reflected light is used. Surveying.
[0003]
[Problems to be solved by the invention]
In the conventional surveying method, the measuring device is mounted with a tripod near the track, while one of the bar is placed horizontally between the rails and the other bar is directed upward to the obstacle. It is necessary to have 4 to 5 workers including a watchman in the work to be held in the room. In addition, the surveying instrument comes with a personal computer etc. in addition to the above equipment, and it is inevitable that the number will increase, and handling such as transportation will be very troublesome, of course, Even in the original measurement, there was a problem in the measurement data indexing that the three-point survey and calculation of the two right and left rail positions and the obstacle (measurement object) are necessary.
[0004]
The present invention solves the above problems, the purpose of which can quickly set the obstacle limit measurement device at the center of the gantry, can obtain the necessary data just by measuring one point of the obstacle, Of course, it can be easily adapted to the track condition such as cant and slack, it can be folded in two and convenient for attaching and detaching to the track, the number of equipment is small, labor can be greatly reduced, and mobility is excellent, The object of the present invention is to provide a stand for obstacle limit measuring equipment that can contribute to the safe operation of trains.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the frame of the obstacle limit measuring apparatus, which is a feature of the present invention, is hinged so that a pair of left and right frame bars can be folded in two between opposite ends. At the center of the pedestal bar, a screw rod for fixing the obstacle limit measuring device supported on the central part of the both pedestal bars in a state where the both pedestal bars penetrate vertically is provided rotatably. The screw rod is provided with a fixing male screw portion that can be screwed with the fixing female screw portion on the obstacle limit measuring device side on the upper end of the screw rod. And a pair of left and right support brackets that are fixed on the reference plate so that they can be supported by sandwiching the free end side of each pedestal bar. The bracket and double-sided pedestal bar are moved relative to each other in the horizontal direction. Linked so that it is possible, and is configured to be able to match the gauge about the center of both stand rod is laterally placed between the rails is spread linearly.
[0006]
In the above-described configuration of the present invention, the pair of left and right pedestal bars are preferably made of glass fiber reinforced plastic (FRP) square pipes that are lightweight and satisfactory in strength. A scale plate that displays the error between the center of the pedestal bar and the center of the gauge, which is placed between the rails of the track, is provided on the upper part of each pair of left and right support brackets. Thus, the adjustment work for making the center of the two pedestal bars horizontally placed between the two rails of the track coincide with the center of the gauge can be performed easily and correctly.
[0007]
In addition, when this gantry is used for a normal track with a gauge of 1067, for example, the pointer is set so as to indicate the scale 0, and the gantry bar and the support bracket can of course be fixed to each other at the adjustment position. is there. In addition, the two support rods and the pair of left and right support brackets are positioned in the two support rods through a guide plate that is horizontally supported between the pair of support brackets so that the relative movement can be stably performed. The guide plates are connected to each other and guided relative to the pedestal bar by being guided by a guide trochanter horizontally mounted in the pedestal bar.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. Reference numerals 1 and 2 are FRP pedestal rods such as polyacetal (preferably a square pipe having an upper surface width of 26 mm, a side surface width of 70 mm, and a thickness of about 2.5 mm), which are relative to each other so that they can be folded. Hinged ends (3 is a hinge part), and the pedestal rods 1 and 2 can be horizontally mounted between the rails of the track when expanded in a straight line (in the illustrated case, both The pedestal rods 1 and 2 are each formed in the same length of about 630 mm.
[0009]
A gap 4 for providing a screw rod, which will be described later, is provided between the opposite ends of the gantry rods 1 and 2 in the vertical direction, and both side surfaces of one of the gantry rods 1 surround the gap 4. Are made of synthetic resin such as polyacetal, and the other base bar 2 is made of the same material as that described above only on one side which becomes the outer side when both base bars 1 and 2 are linearly expanded. Each connection plate 7 is screwed (for example, a bolt and a nut). The connection plates 5, 6 and 7 have the same width as the side surfaces of the gantry bars 1 and 2, the thickness is about 15 mm, and the sum of the lengths of the connection plates 6 and 7 is longer than the length of the connection plate 5, A hinge portion 3 is provided on the connection plates 6 and 7 side.
[0010]
The hinge portion 3 is constructed by connecting hinge plates 8 and 9 screwed to connection plates 6 and 7 respectively by a hinge pin 11 so as to be rotatable, and an aluminum alloy is used as a material thereof. A screw rod 12 is rotatably inserted into the gap 4, and an operation knob 12 a is screwed into the lower end of the screw rod 12, and a fixing male screw portion 12 b is screwed into the upper end. The part 12b is screwed with a fixing female screw portion (not shown) provided on the mounting base (base) 31 on the obstacle limit measuring device side, and the support rods 1, 2 in which the obstacle limit measuring device is linearly expanded. It is a mechanism that supports and fixes to the central part of the.
[0011]
A pair of nuts 13 that are in contact with each other as a stopper for preventing the screw rod 12 from coming out of the gap 4 is screwed to a portion located in the gap 4 of the screw rod 12. When the screw rod 12 is lowered, it hits the fixing plate 14 screwed to the lower surface of the connecting plates 5 and 6 so as to block the lower surface side of the gap 4 and prevents the screw rod 12 from falling out of the gap 4. It is a member. Further, the connection plate 5 is provided with recesses 5a, 6a corresponding to the gap 4 at the front end portion of the connection plate 6 facing the gap 4, respectively.
[0012]
In other words, the screw rod 12 is lowered by its own weight when the obstacle limit measuring device is not supported by the central portion of the pedestal rods 1 and 2, and the fixing male screw portion 12 b on the upper end side is connected to the upper surface of the gap 4. It ’s in the same state. When the obstacle limit measuring device is correctly set at the center portion of the pedestal bars 1 and 2, the fixing male screw 12b can be screwed into the fixing female screw portion provided on the mounting base 31, so that the screw rod 12 rotates. By the operation, the screw rod 12 is screwed upward together with the fixing male screw portion 12b, and the obstacle limit measuring device is fixed at the set position at the upper limit position of the screw rod 12.
[0013]
A pair of holding screws 15 for holding the pedestal rods 1 and 2 in a straight line-up state toward the connection plate 7 are inserted into the portion of the connection plate 5 protruding from the end of the pedestal rod 1, Marks for correctly setting the obstacle limit measuring device at the center position of the pedestal bars 1 and 2 are placed on the pedestal bars 1 and 2 at positions separated from the opposite ends of the pedestal bars 1 and 2, respectively. Engraved positioning plates 16 and 16 are provided by screwing or the like. The screw rod 12 is provided with a means for restricting the rising amount.
[0014]
On the free ends of the pedestal rods 1 and 2, reference plates 17 and 17, which are respectively received on the left and right rails of the track, are fixed on both reference plates 17 at a position separated by the same distance from the gap 4. A pair of left and right support brackets 18 and 18 are provided. The reference plate 17 includes a bent portion 17a that can contact the inner edge of the rail. The pair of left and right support brackets 18 and 18 are respectively fixed on the reference plate 17 by screwing at the bent lower portion 18a. Both support brackets 18 are erected on the reference plate 17 so as to face each other with the pedestal rods 1 and 2 interposed therebetween. The upper portions 18b and 18b of the pair of left and right support brackets 18 and 18 are bent along the upper surfaces of the gantry bars 1 and 2 and fixed to the gantry bars 1 and 2 as will be described later.
[0015]
On the other hand, guide plates 19 and 19 that are horizontally supported between a pair of left and right support brackets 18 and 18 are provided in the pedestal rods 1 and 2, respectively. Each pair of bolts 22, 22, which are loosely penetrated through the long holes 21, 21 provided on both side surfaces of the pedestal rods 1, 2 and horizontally mounted between the support brackets 18, so that relative movement in the direction is possible. It is supported. Reference numeral 23 denotes a tightening nut for the bolt 22, and a pipe (not shown) is fitted to each bolt 22 as a spacer. Further, in order to facilitate the above relative movement, both guide plates 19 are supported in a loosely clamped state by a pair of guide trochanters 24, 24 rotatably mounted in the pedestal bars 1, 2. Has been.
[0016]
The above-mentioned relative movement function is such that when the pedestal bars 1 and 2 spread in a straight line are horizontally mounted on the rails of the track, the pedestal bars 1 and 2 are moved laterally with respect to the support bracket 18 to This is for adjusting the center, that is, basically, the mounting position of the obstacle limit measuring device so as to coincide with the center of the track. For the adjustment, the scale plate 25 is provided on the upper surfaces of the support rods 1 and 2 and the pointer 26 is provided on the upper portions 18b and 18b of the pair of support brackets 18 and 18, respectively. The support rods 1 and 2 and the pair of support fixtures 18 are connected to each other by a butterfly bolt 27 passed through the upper portions 18b and 18b of the support fixture 18 and a slide nut 28 brought into contact with the inner surface of the upper surface of the support rods 1 and 2. 18 are fastened together and fixed.
[0017]
A long hole (not shown) through which the butterfly bolt 27 is passed is provided on the upper surface of the pedestal bars 1 and 2 in order to adjust the relative positions of the pedestal bars 1 and 2 and the support brackets 18 and 18. For fixing between the members, bolts and nuts are basically used except for the scale plate 25 (attachment). Also, near both free ends of the gantry bars 1 and 2, the laser beam emitted from the obstacle limit measuring device set at the central part of the gantry bars 1 and 2 is aligned with the center line of the gantry bars 1 and 2. A mark 29 is displayed as a guide for the measurement, and is considered so that the measurement can be performed correctly and easily. 32 is a binding band made of Velcro or the like.
[0018]
【The invention's effect】
The present invention is as described above, and since it can be folded in two, the construction work on the track can be done easily and quickly, and the obstacle limit measuring device can be correctly set at the required position between the rails of the track and measured. There is an advantage in measurement that necessary data can be obtained only by measuring one point of the object. In addition, the equipment required for measurement can be configured in one compact one, improving workability, and achieving a significant labor saving that only two or three workers are required. The practical value is great.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention and is a front view showing a state in which both pedestal bars are expanded.
FIG. 2 is a plan view of what is shown in FIG. 1 with the obstruction limit measuring device mounting base removed.
FIG. 3 is a plan view of the state shown in FIG.
4 is a partial view showing a central portion of FIG. 2, wherein (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is an AA line of (a). It is sectional drawing.
5 is a partial view showing a left end side portion of FIG. 2, in which (a) is a plan view, (b) is a front view, and (c) is a side view. FIG.
[Explanation of symbols]
1 and 2 are pedestal bars, 3 is a hinge part, 4 is a gap, 5 and 6 and 7 are connection plates, 8 and 9 are hinge plates, 11 is a hinge pin, 12 is a screw rod, 12a is an operation knob, and 12b is for fixing Male screw portion, 15 is a holding screw, 17 is a reference plate, 17a is a bent portion, 18 is a support fitting, 18a is a lower portion, 18b is an upper portion, 19 is a guide plate, 21 is a long hole, 22 is a bolt, 23 is a nut, 24 Is a guide trochanter, 25 is a scale plate, 26 is a pointer, 27 is a butterfly bolt, 28 is a slide nut, and 31 is a mount for the obstacle limit measuring device.

Claims (3)

A pair of left and right pedestal bars are hinged so that they can be folded in two between the opposite ends. At the center of both pedestal bars, A screw rod for fixing the obstacle limit measuring device supported on the center part of the both pedestal rods is rotatably provided, and can be screwed onto the upper end of the screw rod with the fixing female screw portion on the obstacle limit measuring device side. A fixed male thread is provided, and on the free ends of both pedestal bars, a reference plate that is received on the left and right rails of the track, and a free end of each pedestal bar fixed on the reference plate A pair of left and right support brackets are provided so that they can be supported by sandwiching the sides, and the pair of support brackets and the two pedestal bars are connected so that they can be moved relative to each other in the lateral direction. , Both linearly expanded and horizontally mounted between the two rails Mount obstacles limit measuring apparatus characterized by being configured to the center of Taibo can be matched to the gauge center. The pedestal of the obstacle limit measuring apparatus according to claim 1, wherein the pair of left and right pedestal bars are square pipes made of glass fiber reinforced plastic. A scale plate is provided on the upper surface of the pair of left and right pedestal bars at the portion facing the reference plate, while a pointer for the scale plate is provided on the upper part of each pair of left and right support brackets. The stand for the obstacle limit measuring apparatus according to claim 1 or 2.

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