JPS586761Y2 - Mounting fixture for ground element for automatic train stopping device - Google Patents

Description

[Detailed description of the invention] This invention is a conc IJ made of wood or with a female screw embedded in advance.
The automatic train stop device is installed on sleepers made of wood.
This invention relates to a ground element mount that can be easily and firmly mounted at a predetermined height position that varies depending on the type of rail.

Conventionally, the beacon for automatic train stopping devices has been indirectly fixed and held on sleepers or rails, and the beacon has been mounted in such a way that the distance from the onboard element mounted on the vehicle is kept constant regardless of the type of rail. Various measures have been taken to make the height position adjustable and to withstand the strong vibrations of the ground element.

Among these, the type that tightens the fixture to the rail has a complicated structure, has poor vibration resistance, and has defects such as interfering with the pounding and compaction of the track bed.

In addition, several types of methods have been devised to tighten the odor by attaching them to sleepers, but among them, the ones that are easy to attach to the sleepers and allow fine adjustment of the installation height of the ground element have a complicated structure and are not vibration resistant. Furthermore, those using general coach screws have disadvantages such as difficulty in adjusting the mounting height of the ground element and lack of sufficient vibration resistance. Because it is used, there were drawbacks such as having a negative effect on the Q value of the ground element.

This invention solves the above-mentioned problems all at once. Two special coach screws are used as the main body of the fixture, and the mounting part of the ground element, which has parallel notches on opposite sides of the upper half of the coach screw, is attached to the upper half of the coach screw. A special screw is installed in the half part, and this special coach screw is screwed into the guide hole drilled at the specified position of the sleeper or the female thread in the case of concrete sleepers, and after adjusting the screwing amount to match the installation height of the ground wire, Attach a ground element with anti-rotation plates applied to both the top and bottom of the mounting hole, tighten the chrysanthemum nut with the male screw provided at the upper end of the coach screw to secure the ground element to the coach screw, and further prevent the chrysanthemum nut from rotating. This makes it possible to easily and firmly attach the ground element to the railroad ties in an accurate position, and by using non-magnetic materials such as stainless steel, the negative effect on the Q value of the ground element has been eliminated. It is characterized by:

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 1A, a ground member 3 is installed above one sleeper 2 in a group of sleepers supporting a pair of rails 1 to 1'.

FIG. 2 shows an example of the ground element 3, in which the main body 3A is formed of epoxy resin into a flat plate shape, and contains a molded coil 4 and capacitors 5 forming a resonant circuit.

6A and 6B are mounting holes for inserting coach screws provided one each on the plate surface of the main body 3A surrounded by the coil 4 of the resonant circuit and one end edge of the main body 3A, and 7 is a board near the mounting hole 6A. This is a through hole that opens on the surface.

Further, reference numeral 23 indicates the mouth edge of the through hole 7 and the edge of one end of the main body 3A, which are used to lock a bent edge of a stopper plate to be described later.

FIG. 3 shows details of the fixture according to the invention.

Figure 3A shows a special coach screw main body 8, the lower half of which is a part of the screw, and the upper half of which is a mounting part for the ground wire.

First, the screw portion t1, which occupies most of the screw portion, is the screw 12 with the same diameter, and the diameter d1 of the trough portion is equal to the diameter d1 of the main body, and the diameter d2 of the crest portion is naturally larger than dl.

The diameter of the lowermost portion 22 is tapered so that the minimum diameter d3 of the crest of the screw 12' is smaller than the diameter d1 of the main body.

In this way, in the case of wooden sleepers, if the diameter of the guide hole drilled in a predetermined position of the sleeper matches the diameter d1 of the screw body,
When screwing in the screw, even if the sleeper is made of a hard material, the leading part 12'' of the screw will not be damaged, and the leading part 12'' will not destroy the fibers in the guide hole of the sleeper. It will be held firmly in an extremely stable state.

Next, for the mounting part of the ground element in the upper half, a notch 13 is created by cutting out the opposing surface of the shaft in a parallel plane over a range of a certain length t3 from the top, and a step part 13A is formed at the lower end of the notch 13.

Further, a male thread 14 is provided on the circumferential portion in the range t4 from the top,
A split pin hole 15 is provided in the middle.

The part t of the notch 13 that does not have a male thread is connected to the main body 8.
When screwing into sleepers, use a spanner etc.
When installing the ground element, it becomes a support part for the ground element with its upper and lower surfaces sandwiched between rotation prevention plates, which will be described later.

Furthermore, the male screw 14 at the top is for tightening a chrysanthemum nut, which will be described later.

The opening in Figure 3 is a stopper plate, which has the same shape for both upper and lower 9A and 9B, and the coach screw body 8 is attached to the plate surface.
An opening 16A that matches the cross-sectional shape of the ground element mounting portion 13 of
, 16B, and one side edge thereof is bent at a right angle to form bent edges 17A, 17B, and when installed, the openings 16A,
16B fits into the ground element attachment part 13 of the coach screw main body 8, and the bent edges 17A and 17B hang on the end edge 23 of the ground element 3 and function to prevent the coach screw main body 8 from rotating.

FIG. 3C shows the chrysanthemum nut 10, the rotation stopper plate 9A,
9B is tightened and fixed to the coach screw 8. After screwing into the external thread 14 provided at the top of the coach screw 8 and tightening appropriately, the ground member 3 is secured with the cotter pin 11 shown in Fig. 3, 2. Prevent rotation of nut 10.

Figure 4 shows the ground member 3 attached to the wooden sleeper 2 using the fixture according to the present invention. Figure A shows the case where the target rail 1A is large, and the opening in the figure shows the target rail 1B. The case where is small is shown.

Note that both figures show only one of the two sets of one pair of fittings.

As for the installation method, first, a guide hole 18 having a diameter d1 is vertically penetrated into the upper surface 21 of the sleeper 2 at a predetermined position at the same interval as the distance between the two additional holes 6A and 6B of the ground member main body. The coach screw 8, which is the main body of the fixture, is inserted into this guide hole 18.
Apply a spanner or the like to the notch 13 and screw in.

Since the height difference H between the top surface 19 of the ground element 3 and the top surface 20 of the rail 1A or 1B is fixed regardless of the type of rail, it is calculated from the height of the installed rail. The screwing amount is adjusted so that the notch step portion 13A of the coach screw 8 has a predetermined height hl or h2 from the upper surface 21 of the sleeper 2.

After adjusting the screwing amount of the pair of coach screws, apply the contact plates 9A and 9B to the positions of the respective mounting holes 6A and 6B of the ground member main body 3A, respectively.
The bent edges 17A and 17B of B are engaged with the edge 23 of the through hole 7 of the ground element body 3A or one end edge 23 of the ground element body 3A, and the mounting holes 6A, FiB and both song holes 6A of the ground element body 3A are fixed. 6B, insert the mounting portion 13 of the coach screw main body 8 through the openings 16A and 16B of the contact plates 9A and 9B applied to the upper and lower surfaces of the main body 3A, and
The lower contact plate 9B is seated on the stepped portion 13A, and the chrysanthemum nut 10 is screwed into the male thread 14 of the shaft of the coach screw that protrudes upward from the contact plate 9A applied to the upper surface of the ground element main body 3A. After tightening the child body 3A to the coach screw, use the cotter pin 11 to stop the chrysanthemum nut 10 from rotating.
The ground member main body 3A is held above the sleeper with a real coach screw, and the ground member is installed at a constant height position relative to the upper surface of the rail to complete the installation.

The above explanation is for installing on wooden sleepers, but even in the case of concrete IJ-t sleepers, if you embed in advance a female thread that will be screwed into the coach screw at a predetermined position on the sleeper, you can install it on wooden sleepers. It is possible to use the fixture of the present invention effectively as well.

In the ground member installed in this way, the coach screw 8 is inserted into the openings 16A and 16 of the rotation prevention plates 9A and 9B.
B and the notch 13 in the head of the coach screw are fitted to form a stopper plate 9A.

9B is prevented from rotating by the hooks between its bent edges 17A, 17B and the edge 23 of the ground element, and furthermore, the anti-rotation plates 9A, 9B are prevented from rotating by the chrysanthemum nuts 10 and split pins 11. Since the tightening never loosens, the relative position between the sleeper 2 and the ground member 3 will not be disturbed by any vibration of the sleeper or the like.

Furthermore, since all parts of the fixture according to the present invention except for the cotter pin 11 are made of non-magnetic material such as stainless steel, the Q value of the ground element etc. is not adversely affected.

As described above, the present invention combines two special coach screws 8 with a pair of anti-rotation plates 9A, 9B chrysanthemum nuts 10 and cotter pins 11, allowing easy operation.
Depending on the type of rail, the ground element can be easily and securely installed at a specified height relative to the top of the rail.
In addition, it is possible to easily adapt the installed ground element to changes in the type of rail, change in height position due to rail wear, or change in the mounting point of the ground element without the need for new parts. can.

Therefore, according to the present invention, work such as installing the ground element and changing the height position, which were conventionally considered to be extremely troublesome, can be carried out efficiently.Furthermore, after installation, there are no troubles due to vibration etc. There is no adverse effect on the child's Q value, and there is no hindrance to work such as pounding the road bed.

[Brief explanation of the drawing]

Figure 1A is a plan view showing a part of the track where the ground element is installed using the fixture of the present invention, the mouth is a cross-sectional view, and Figure 2 shows the ground element, etc. to which the fixture of the present invention is applied. Figure 3A is a plan view, Figure 3 is a cross-sectional view taken along the line A-A of Figure 3, Figure 3A is a front view of the coach screw, and Figure 3 is a front view of the coach screw. , The opening is a perspective view of a pair of anti-rotation plates, C is a front view of the chrysanthemum nut, 2 is a split pin, and Figure 4 is a ground coil etc. attached to a sleeper using the mounting tool of the present invention. A is a cross-sectional view of a main part showing a case where the target rail is large, and a is a main part sectional view showing a case where the target rail is small. 3... Ground child, 8... Coach screw 9A. 9B: Stopping plate, 10: Chrysanthemum nut, 11: Cotter pin.

Claims (1)

[Scope of utility model registration request] The lower peripheral surface of the shaft is equipped with a screw with the same diameter that is larger than the shaft diameter over a certain range, and a continuous screw that follows the tapered part at the lower end. A parallel plane is cut out on the opposing surface of the shaft, a stepped part is formed on the lower edge of the ground element mounting part, and a male screw is attached to the shaft part of the notched mounting part over a certain range from the top. A non-magnetic coach screw,
a pair of abutment plates made of a non-magnetic plate-like body, each having an opening in the plate surface that matches the cross-sectional shape of the attachment part of the coach screw, and having a bent edge formed by bending one end at a right angle;
It consists of a non-magnetic chrysanthemum nut that is screwed onto the male thread at the upper end of the coach screw, and a plate surface of the main body surrounded by the coil of the resonant circuit in the flat ground element body with a built-in resonant circuit, and one end of the main body. At least one through hole is provided in the vicinity of the mounting hole opened in the plate surface of the main body, and the upper surface of the sleeper is provided with a mounting hole for inserting a coach screw into each of the main body. Two guide holes with the same diameter as the shaft diameter of the coach screw were opened at the same intervals as the spacing between the holes, a coach screw was screwed into each guide hole, and the screw was installed on the sleeper by adjusting the screwing amount. The height of the steps of both coach screws relative to the top surface of the rail is regulated, and a contact plate is applied to the upper and lower surfaces of each mounting hole in the ground element body in accordance with the position of each mounting hole, and the bent edge of each contact plate is attached to the ground element body. Insert the mounting part of the coach screw through the mounting hole of the ground element body and the openings of both backing plates, and place the bottom plate on the lower surface of the ground element body onto the stepped part. After seating, tighten the ground element body to the coach screw using a chrysanthemum nut screwed onto the shaft of the coach screw that protrudes above the contact plate on the upper surface of the ground element body, and place the ground element on the sleeper using two coach screws. A mounting tool for a ground element for an automatic train stopping device, in which the ground element is held at a fixed height position relative to the top surface of the rail.